/* ==========================================================================
 * GY-ENGINE Core Stylesheet Bundle (v4.5)
 * Bundled from: common.css + base.css + navbar.css + footer.css + layout.css + utilities.css + ads.css
 * ========================================================================= */

/* --- BEGIN public/assets/css/common.css --- */
/* GY-ENGINE Global Common Styles v4.1 — 3-breakpoint responsive + WCAG a11y */
/* Breakpoints: PC ≥1100px | Tablet 768-1099px | Mobile <768px */

/* Reset & Base */
* { box-sizing: border-box; }
body {
    font-family: 'Noto Sans KR', sans-serif;
    background-color: #F8FAFC;
    color: #334155;
    margin: 0;
    padding: 0;
    line-height: 1.6;
    opacity: 1; /* Explicitly visible */
    -webkit-text-size-adjust: 100%;
}

/* WCAG 2.1: 키보드 focus 인디케이터 */
:focus-visible {
    outline: 2px solid #3b82f6;
    outline-offset: 2px;
    border-radius: 4px;
}
button:focus-visible, a:focus-visible {
    outline: 2px solid #3b82f6;
    outline-offset: 3px;
}
input:focus-visible, select:focus-visible, textarea:focus-visible {
    outline: none;
    box-shadow: 0 0 0 3px rgba(59, 130, 246, 0.25);
}

/* WCAG 2.3.3: 모션 감소 선호 사용자 */
@media (prefers-reduced-motion: reduce) {
    *, *::before, *::after {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
        scroll-behavior: auto !important;
    }
}

/* WCAG 2.4.1: Skip-to-content link */
.skip-to-content {
    position: absolute;
    top: -50px;
    left: 12px;
    background: #3b82f6;
    color: #fff;
    padding: 10px 18px;
    border-radius: 0 0 10px 10px;
    font-weight: 700;
    font-size: 0.9rem;
    text-decoration: none;
    z-index: 9999;
    transition: top 0.2s;
}
.skip-to-content:focus { top: 0; }

/* WCAG 2.5.5: 터치 디바이스에서 최소 44px touch target */
@media (pointer: coarse) {
    button:not(.btn-icon-sm):not(.btn-text-only):not(.btn-close):not(.lang-btn),
    .btn-tool, .btn-chip, .menu-card a {
        min-height: 44px;
    }
}

@keyframes fadeIn {
    from { opacity: 0; transform: translateY(15px); }
    to { opacity: 1; transform: translateY(0); }
}

@keyframes fadeInUp {
    from { opacity: 0; transform: translateY(20px); }
    to { opacity: 1; transform: translateY(0); }
}

a { text-decoration: none; color: inherit; }
ul { list-style: none; padding: 0; margin: 0; }

/* Utility Classes */
/* RFC-UI-V4: 와이드 모니터 활용 — 1400 → 1600px */
.container {
    width: 100%;
    max-width: 1600px;
    margin: 0 auto;
    padding: 20px 24px;
}

@media (max-width: 1099px) {
    .container { padding: 16px; }
}
@media (max-width: 767px) {
    .container { padding: 12px; }
}

.card-ui {
    background: #ffffff;
    border-radius: 20px;
    box-shadow: 0 4px 16px rgba(0, 0, 0, 0.05);
    padding: 20px;
    border: 1px solid #f1f5f9;
    transition: transform 0.25s ease, box-shadow 0.25s ease;
}

@media (max-width: 1099px) {
    .card-ui { padding: 16px; border-radius: 16px; }
}
@media (max-width: 767px) {
    .card-ui { padding: 14px; border-radius: 14px; }
}

/* Button Styles */
.btn-pastel {
    border: none;
    padding: 12px 24px;
    border-radius: 16px;
    font-weight: 700;
    font-size: 0.95rem;
    cursor: pointer;
    transition: all 0.2s;
    position: relative;
    overflow: hidden;
    display: inline-flex;
    align-items: center;
    gap: 8px;
}
.btn-pastel:active { transform: scale(0.96); }
.btn-pastel:hover { filter: brightness(0.95); transform: translateY(-2px); }

.btn-blue { background: #E0F2FE; color: #0369A1; }
.btn-green { background: #DCFCE7; color: #15803D; }
.btn-pink { background: #FFE4E6; color: #BE123C; }
.btn-orange { background: #FFEDD5; color: #C2410C; }

/* Ripple Effect */
.ripple {
    position: absolute;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.5);
    transform: scale(0);
    animation: ripple-anim 0.6s linear;
    pointer-events: none;
}
@keyframes ripple-anim {
    to { transform: scale(4); opacity: 0; }
}

/* Modal (Dialog) — 공유 모달 (이메일/도움말/JSON 뷰어) */
@keyframes modalPop {
    from { opacity: 0; transform: scale(0.9) translateY(20px); }
    to { opacity: 1; transform: scale(1) translateY(0); }
}
@keyframes backdropFade { from { opacity: 0; } to { opacity: 1; } }

.modal-content { padding: 0; }
.modal-header {
    padding: 25px 30px;
    background: #fff;
    display: flex;
    justify-content: space-between;
    align-items: center;
    border-bottom: 1px solid #F1F5F9;
    position: sticky; top: 0; z-index: 10;
}
.modal-title { font-size: 1.4rem; font-weight: 800; color: #1E293B; margin: 0; }
.btn-close {
    background: #F1F5F9; border: none;
    width: 36px; height: 36px; border-radius: 50%;
    font-size: 1.2rem; cursor: pointer; color: #64748B;
    display: flex; align-items: center; justify-content: center;
    transition: all 0.2s;
}
.btn-close:hover { background: #FFE4E6; color: #BE123C; transform: rotate(90deg); }

.modal-body { padding: 30px; max-height: 70vh; overflow-y: auto; }
.modal-img {
    width: 100%; border-radius: 16px; margin-bottom: 25px;
    box-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.05);
    border: 1px solid #F1F5F9;
}

.modal-meta {
    background: #F8FAFC; padding: 20px; border-radius: 16px; margin-bottom: 25px;
}
.meta-row { display: flex; margin-bottom: 10px; font-size: 0.95rem; }
.meta-row:last-child { margin-bottom: 0; }
.meta-label { width: 100px; font-weight: 700; color: #64748B; }
.meta-val { flex: 1; color: #334155; font-weight: 500; }

.modal-desc { color: #475569; line-height: 1.7; font-size: 1rem; }
.modal-desc a { color: #3B82F6; font-weight: 600; text-decoration: underline; text-underline-offset: 4px; }
.modal-desc a:hover { color: #2563EB; }

/* Navigation Active State */
.nav-links a.active {
    color: #3B82F6;
    font-weight: 800;
    position: relative;
}
.nav-links a.active::after {
    content: '';
    position: absolute;
    bottom: -5px;
    left: 0;
    width: 100%;
    height: 3px;
    background: #3B82F6;
    border-radius: 2px;
}

/* Footer Styles */
.main-footer {
    background: #fff;
    border-top: 1px solid #F1F5F9;
    padding: 36px 0;
    margin-top: 48px;
    text-align: center;
}
@media (max-width: 767px) {
    .main-footer { padding: 24px 0; margin-top: 32px; }
}
.footer-content h4 { margin: 0 0 10px 0; color: #1E293B; font-size: 1.2rem; font-weight: 800; }
.footer-content p { color: #94A3B8; font-size: 0.95rem; margin: 0 0 30px 0; }
.social-links { display: flex; justify-content: center; gap: 15px; margin-bottom: 30px; }
.social-btn {
    width: 48px; height: 48px;
    border-radius: 16px;
    background: #F8FAFC;
    display: flex;
    align-items: center;
    justify-content: center;
    color: #64748B;
    font-weight: 700; font-size: 0.9rem;
    transition: all 0.2s;
    border: 1px solid #E2E8F0;
}
.social-btn:hover { background: #3B82F6; color: #fff; transform: translateY(-5px); border-color: #3B82F6; }
.copyright { font-size: 0.85rem; color: #CBD5E1; }

/* ── Responsive ───────────────────────────────────── */
@media (max-width: 767px) {
    .modal-header { padding: 16px; }
    .modal-body { padding: 16px; }
    .meta-row { flex-direction: column; gap: 4px; }
    .meta-label { width: 100%; }
    .social-links { gap: 10px; }
}

/* ── RFC-UI-V4: Global FAB Stack ──────────────────────────── */
.gy-fab-stack {
    position: fixed;
    right: 20px;
    bottom: 24px;
    z-index: 1500;
    display: flex;
    flex-direction: column;
    gap: 10px;
    pointer-events: none;
}
.gy-fab {
    width: 48px;
    height: 48px;
    border-radius: 50%;
    border: 1px solid rgba(15, 23, 42, 0.06);
    background: #ffffff;
    color: #334155;
    font-size: 1.15rem;
    font-weight: 800;
    cursor: pointer;
    box-shadow: 0 10px 24px rgba(15, 23, 42, 0.12);
    transition: transform 0.2s, box-shadow 0.2s, opacity 0.25s;
    pointer-events: auto;
    display: flex;
    align-items: center;
    justify-content: center;
}
.gy-fab:hover { transform: translateY(-2px); box-shadow: 0 14px 30px rgba(15, 23, 42, 0.18); }
.gy-fab.gy-fab-help { background: linear-gradient(135deg, #3b82f6 0%, #2563eb 100%); color: #fff; border: none; }
.gy-fab.gy-fab-help:hover { filter: brightness(1.05); }
.gy-fab.gy-fab-theme { background: linear-gradient(135deg, #8b5cf6 0%, #6d28d9 100%); color: #fff; border: none; }
.gy-fab.gy-fab-theme:hover { filter: brightness(1.05); }
.gy-fab.gy-fab-top { opacity: 0; transform: translateY(20px); pointer-events: none; }
.gy-fab.gy-fab-top.is-visible { opacity: 1; transform: translateY(0); pointer-events: auto; }
@media (max-width: 767px) {
    .gy-fab-stack { right: 14px; bottom: 18px; gap: 8px; }
    .gy-fab { width: 44px; height: 44px; font-size: 1.05rem; }
}

/* ── RFC-UI-V4: Help / Shortcut Modal ─────────────────────── */
.gy-help-dialog {
    border: none;
    border-radius: 20px;
    padding: 0;
    box-shadow: 0 25px 50px -12px rgba(0, 0, 0, 0.28);
    max-width: 460px;
    width: 92%;
    background: #fff;
}
.gy-help-dialog::backdrop { background: rgba(15, 23, 42, 0.55); backdrop-filter: blur(6px); }
.gy-help-body { padding: 22px 26px 26px; }
.gy-help-section { margin-bottom: 22px; }
.gy-help-section:last-child { margin-bottom: 0; }
.gy-help-section h4 { margin: 0 0 10px; font-size: 0.95rem; font-weight: 800; color: #1e293b; }
.gy-help-hint-status { font-size: 0.85rem; color: #475569; margin: 0 0 12px; line-height: 1.6; }
.gy-help-expand-btn { font-size: 0.85rem; padding: 9px 16px; }
.gy-shortcut-list { list-style: none; padding: 0; margin: 0; display: flex; flex-direction: column; gap: 8px; }
.gy-shortcut-list li { display: flex; align-items: center; gap: 10px; font-size: 0.85rem; color: #334155; }
.gy-shortcut-list li span { color: #64748b; }
.gy-shortcut-list kbd {
    display: inline-block;
    background: #f1f5f9;
    border: 1px solid #cbd5e1;
    border-bottom-width: 2px;
    border-radius: 5px;
    padding: 1px 7px;
    font-size: 0.78rem;
    font-family: 'Consolas', monospace;
    color: #1e293b;
    box-shadow: 0 1px 0 rgba(15, 23, 42, 0.04);
    min-width: 18px;
    text-align: center;
}
.gy-help-foot { font-size: 0.78rem; color: #94a3b8; margin: 0; }

/* ── RFC-UI-V4: First-Visit Tour (Coach Marks) ────────────── */
.gy-tour-overlay {
    position: fixed;
    inset: 0;
    background: rgba(15, 23, 42, 0.55);
    backdrop-filter: blur(4px);
    z-index: 2100;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 20px;
    animation: gy-tour-fade 0.3s ease;
}
@keyframes gy-tour-fade { from { opacity: 0; } to { opacity: 1; } }
.gy-tour-card {
    background: #fff;
    border-radius: 22px;
    padding: 28px 30px;
    max-width: 440px;
    width: 100%;
    box-shadow: 0 30px 60px rgba(0,0,0,0.25);
    animation: gy-tour-pop 0.35s cubic-bezier(0.34, 1.56, 0.64, 1);
}
@keyframes gy-tour-pop {
    from { opacity: 0; transform: scale(0.92) translateY(20px); }
    to   { opacity: 1; transform: scale(1) translateY(0); }
}
.gy-tour-eyebrow {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    background: #eff6ff;
    color: #2563eb;
    font-size: 0.7rem;
    font-weight: 800;
    padding: 4px 10px;
    border-radius: 20px;
    border: 1px solid #bfdbfe;
    margin-bottom: 14px;
    letter-spacing: 0.5px;
}
.gy-tour-card h3 { margin: 0 0 10px; font-size: 1.25rem; font-weight: 900; color: #1e293b; }
.gy-tour-card p  { margin: 0 0 18px; color: #475569; font-size: 0.92rem; line-height: 1.65; }
.gy-tour-progress {
    display: flex; gap: 6px; margin-bottom: 18px;
}
.gy-tour-dot {
    flex: 1; height: 4px; border-radius: 2px; background: #e2e8f0;
}
.gy-tour-dot.is-active { background: #3b82f6; }
.gy-tour-actions { display: flex; gap: 10px; justify-content: flex-end; align-items: center; flex-wrap: wrap; }
.gy-tour-actions .gy-tour-skip { background: none; border: none; color: #94a3b8; font-size: 0.82rem; cursor: pointer; padding: 6px 8px; margin-right: auto; }
.gy-tour-actions .gy-tour-skip:hover { color: #64748b; }
.gy-tour-btn {
    padding: 9px 20px;
    border-radius: 12px;
    font-weight: 700;
    font-size: 0.88rem;
    cursor: pointer;
    border: none;
    transition: transform 0.15s, box-shadow 0.15s;
}
.gy-tour-btn-primary { background: #3b82f6; color: #fff; box-shadow: 0 4px 12px rgba(59,130,246,0.3); }
.gy-tour-btn-primary:hover { transform: translateY(-1px); box-shadow: 0 6px 16px rgba(59,130,246,0.4); }
.gy-tour-btn-ghost { background: #f1f5f9; color: #334155; }
.gy-tour-btn-ghost:hover { background: #e2e8f0; }

/* ── RFC-UI-V4: Toast (FAB feedback) ──────────────────────── */
.gy-toast {
    position: fixed;
    bottom: 100px;
    right: 20px;
    background: rgba(15, 23, 42, 0.92);
    color: #fff;
    padding: 10px 18px;
    border-radius: 12px;
    font-size: 0.85rem;
    font-weight: 600;
    z-index: 1600;
    box-shadow: 0 8px 24px rgba(0,0,0,0.2);
    animation: gy-toast-in 0.25s ease;
    pointer-events: none;
}
@keyframes gy-toast-in {
    from { opacity: 0; transform: translateY(10px); }
    to   { opacity: 1; transform: translateY(0); }
}
.gy-toast.is-leaving { animation: gy-toast-out 0.3s ease forwards; }
@keyframes gy-toast-out {
    to { opacity: 0; transform: translateY(10px); }
}

/* --- END public/assets/css/common.css --- */

/* --- BEGIN public/assets/css/core/base.css --- */
/**
 * base.css
 * Breakpoints, Global Variables, Reset, Typography
 */
:root {
    /* Breakpoints */
    --bp-mobile: 480px;
    --bp-tablet: 768px;
    --bp-desktop: 1024px;

    /* Typography - clamp() for fluid scaling */
    --font-main: 'Noto Sans KR', 'Apple SD Gothic Neo', 'Malgun Gothic', sans-serif;
    --font-display: 'Noto Sans KR', 'Apple SD Gothic Neo', sans-serif;
    --font-size-base: clamp(14px, 1.25vw, 18px);
    --font-size-h1: clamp(1.5rem, 5vw, 2.5rem);
    --font-size-h2: clamp(1.2rem, 4vw, 2rem);

    /* Spacing */
    --spacing-base: clamp(10px, 3vw, 20px);

    /* HAMDAE pastel palette */
    --brand-coral: #E97962;
    --brand-coral-strong: #C95743;
    --brand-apricot: #FFD3A3;
    --brand-butter: #FFF1B8;
    --brand-mint: #CFF2DF;
    --brand-mint-strong: #278A68;
    --brand-sky: #D7ECFF;
    --brand-lilac: #DED3FF;
    --brand-pink: #FFD9EA;

    --radius-sm: 12px;
    --radius-md: 18px;
    --radius-lg: 26px;
    --radius-xl: 34px;
    --shadow-soft: 0 10px 30px rgba(96, 74, 61, 0.08);
    --shadow-lift: 0 20px 48px rgba(96, 74, 61, 0.14);
    --focus-ring: 0 0 0 4px rgba(233, 121, 98, 0.22);
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

/* Native <dialog> showModal() 중앙 배치 복원
 * `* { margin: 0 }` 가 native dialog 의 default margin: auto 를 덮어서
 * viewport 좌측 상단에 고정되는 회귀 fix — P11 */
dialog[open] { margin: auto; }

body {
    font-family: var(--font-main);
    font-size: var(--font-size-base);
    background-color: var(--bg-body);
    color: var(--text-main);
    line-height: 1.6;
    transition: background-color 0.3s, color 0.3s;
}

h1 { font-size: var(--font-size-h1); margin-bottom: 1rem; }
h2 { font-size: var(--font-size-h2); margin-bottom: 0.8rem; }

/* ============================================================
 * HAMDAE Cream Theme Tokens
 * ============================================================ */
:root {
    --bg-body: #FFF9F2;
    --text-main: #332C29;
    --text-muted: #736963;
    --card-bg: rgba(255, 255, 255, 0.92);
    --card-border: #EDE1D8;
    --card-shadow: var(--shadow-soft);

    --bg-pastel: #FFF9F2;
    --primary-pastel: #FFF0DF;
    --accent-pastel: #F8F0EA;
    --surface-muted: #FCF5EF;
    --surface-raised: #FFFFFF;
    --border-color: #EDE1D8;
    --card-radius: var(--radius-md);
}

/* Dark theme: 따뜻한 cocoa 계열로 캐릭터 팔레트 유지 */
[data-theme="dark"] {
    --bg-body: #1C1817;
    --text-main: #FFF7F0;
    --text-muted: #C5B5AB;
    --card-bg: rgba(45, 37, 34, 0.94);
    --card-border: #493B36;
    --card-shadow: 0 16px 36px rgba(0, 0, 0, 0.34);
    
    --bg-pastel: #1C1817;
    --primary-pastel: #3A2B25;
    --accent-pastel: #372F2C;
    --surface-muted: #28211F;
    --surface-raised: #302824;
    --border-color: #493B36;
    --brand-coral: #FF9A84;
    --brand-coral-strong: #FFB09F;
    --brand-mint-strong: #70D2AE;
}

body {
    background-color: var(--bg-body);
    background-image:
        radial-gradient(circle at 8% 4%, rgba(255, 211, 163, 0.34), transparent 25rem),
        radial-gradient(circle at 94% 18%, rgba(222, 211, 255, 0.30), transparent 28rem),
        radial-gradient(circle at 58% 92%, rgba(207, 242, 223, 0.24), transparent 30rem);
    background-attachment: fixed;
    font-family: var(--font-main);
    color: var(--text-main);
    margin: 0;
    padding: 0;
    line-height: 1.6;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    transition: background-color 0.3s ease, color 0.3s ease;
}

/* 공통 카드 스타일 */
.card-ui {
    background: var(--card-bg);
    border-radius: var(--card-radius);
    box-shadow: var(--card-shadow);
    padding: 24px;
    border: 1px solid var(--card-border);
    transition: background-color 0.3s ease, border-color 0.3s ease, box-shadow 0.3s ease;
}

a { color: var(--brand-coral-strong); text-decoration: none; }

::selection {
    background: var(--brand-apricot);
    color: #332C29;
}

:where(a, button, input, select, textarea, [tabindex]):focus-visible {
    outline: 2px solid var(--brand-coral);
    outline-offset: 3px;
}

:where(input, select, textarea):focus-visible {
    outline: none;
    box-shadow: var(--focus-ring);
}

.sr-only {
    position: absolute !important;
    width: 1px !important;
    height: 1px !important;
    padding: 0 !important;
    margin: -1px !important;
    overflow: hidden !important;
    clip: rect(0, 0, 0, 0) !important;
    white-space: nowrap !important;
    border: 0 !important;
}

/* [AdSense] 광고 표현 계층은 core/ads.css 로 이관 (RFC-AdSense-UX-V1).
   기존 .ads-slot-top / .ads-slot-bottom 은 유닛 구조 변경으로 폐기. */

/* ============================================================
 * Dark Mode Component Overrides
 * ============================================================ */
[data-theme="dark"] body {
    background-color: var(--bg-body) !important;
    color: var(--text-main) !important;
}

/* Force Light Colors for Hardcoded Dark Texts in Dark Mode */
[data-theme="dark"] h1,
[data-theme="dark"] h2,
[data-theme="dark"] h3,
[data-theme="dark"] h4,
[data-theme="dark"] h5,
[data-theme="dark"] h6,
[data-theme="dark"] strong,
[data-theme="dark"] th,
[data-theme="dark"] .hero-title,
[data-theme="dark"] .section-title,
[data-theme="dark"] .menu-card h3,
[data-theme="dark"] .project-intro-text h2,
[data-theme="dark"] .project-intro-subtitle,
[data-theme="dark"] .footer-cta-title,
[data-theme="dark"] .modal-title,
[data-theme="dark"] .gy-help-section h4,
[data-theme="dark"] .gy-tour-card h3,
[data-theme="dark"] .main-text,
[data-theme="dark"] .rank-score,
[data-theme="dark"] .data-table .value,
[data-theme="dark"] .file-name,
[data-theme="dark"] .ad-title-v12,
[data-theme="dark"] .ad-price-v12,
[data-theme="dark"] .mobile-title {
    color: var(--text-main) !important;
}

[data-theme="dark"] p,
[data-theme="dark"] span,
[data-theme="dark"] td,
[data-theme="dark"] li,
[data-theme="dark"] label,
[data-theme="dark"] .hero-desc,
[data-theme="dark"] .stat-label,
[data-theme="dark"] .project-intro-desc,
[data-theme="dark"] .menu-card p,
[data-theme="dark"] .footer-cta-sub,
[data-theme="dark"] .copyright {
    color: var(--text-muted) !important;
}

[data-theme="dark"] .card-ui,
[data-theme="dark"] .menu-card,
[data-theme="dark"] .project-intro,
[data-theme="dark"] .text-card,
[data-theme="dark"] .footer-cta,
[data-theme="dark"] .aci-card,
[data-theme="dark"] .aci-stat-card,
[data-theme="dark"] .aci-log-panel,
[data-theme="dark"] .click-game-container,
[data-theme="dark"] .floating-pps,
[data-theme="dark"] .rank-item,
[data-theme="dark"] .countdown-card,
[data-theme="dark"] .countdown-container,
[data-theme="dark"] .editor-area,
[data-theme="dark"] .editor-sidebar,
[data-theme="dark"] .editor-toolbar,
[data-theme="dark"] .jv-wrapper,
[data-theme="dark"] .diff-container-v12,
[data-theme="dark"] .drop-msg,
[data-theme="dark"] .dyn-preview-zone,
[data-theme="dark"] .jv-history-dropdown,
[data-theme="dark"] .json-tree-container,
[data-theme="dark"] .native-box-v12,
[data-theme="dark"] .ad-creative-v12,
[data-theme="dark"] .match-list-container,
[data-theme="dark"] .regex-output-box,
[data-theme="dark"] .media-item,
[data-theme="dark"] .media-analyzer-card,
[data-theme="dark"] .ping-card,
[data-theme="dark"] .ping-log-terminal,
[data-theme="dark"] .advice-card,
[data-theme="dark"] .advice-quote-box,
[data-theme="dark"] .vast-step-card,
[data-theme="dark"] .vast-sidebar,
[data-theme="dark"] .hint-panel,
[data-theme="dark"] .info-panel,
[data-theme="dark"] .error-panel,
[data-theme="dark"] .dropdown-menu {
    background-color: var(--card-bg) !important;
    border-color: var(--card-border) !important;
    box-shadow: var(--card-shadow) !important;
}

[data-theme="dark"] .input-pastel:focus,
[data-theme="dark"] input:focus,
[data-theme="dark"] textarea:focus,
[data-theme="dark"] select:focus {
    background-color: var(--bg-body) !important;
    color: var(--text-main) !important;
    border-color: #10B981 !important;
}

[data-theme="dark"] .main-navbar {
    background-color: rgba(15, 23, 42, 0.85) !important;
    border-bottom: 1px solid rgba(51, 65, 85, 0.6) !important;
}

[data-theme="dark"] .main-navbar.scrolled {
    background-color: rgba(15, 23, 42, 0.95) !important;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.2) !important;
}

[data-theme="dark"] .nav-logo {
    color: #f1f5f9 !important;
}

[data-theme="dark"] .nav-item {
    color: #94a3b8 !important;
}

[data-theme="dark"] .nav-item:hover,
[data-theme="dark"] .nav-item.active {
    color: #34D399 !important;
}

[data-theme="dark"] .dropdown-menu {
    background-color: #1e293b !important;
    border: 1px solid #334155 !important;
    box-shadow: 0 10px 25px rgba(0, 0, 0, 0.3) !important;
}

[data-theme="dark"] .dropdown-item {
    color: #cbd5e1 !important;
}

[data-theme="dark"] .dropdown-item:hover,
[data-theme="dark"] .dropdown-item.active {
    background-color: #25332F !important;
    color: #34D399 !important;
}

/* Mobile Nav Overrides */
[data-theme="dark"] .mobile-overlay {
    background: rgba(15, 23, 42, 0.75) !important;
}

[data-theme="dark"] .mobile-menu-card {
    background: #1e293b !important;
    border: 1px solid #334155 !important;
}

[data-theme="dark"] .mobile-title {
    color: #f1f5f9 !important;
}

[data-theme="dark"] .mobile-links a {
    color: #cbd5e1 !important;
    border-bottom: 1px solid #334155 !important;
}

[data-theme="dark"] .mobile-links a:hover,
[data-theme="dark"] .mobile-links a.active {
    background: #25332F !important;
    color: #34D399 !important;
}

/* Dashboard Hero */
[data-theme="dark"] .hero-section {
    background: linear-gradient(135deg, #1e293b 0%, #0f172a 100%) !important;
    border-color: #334155 !important;
}

[data-theme="dark"] .hero-title {
    color: #f1f5f9 !important;
}

[data-theme="dark"] .hero-desc {
    color: #94a3b8 !important;
}

[data-theme="dark"] .hero-stat {
    background: #0f172a !important;
    border-color: #334155 !important;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15) !important;
}

[data-theme="dark"] .stat-num {
    color: #f1f5f9 !important;
}

[data-theme="dark"] .stat-label {
    color: #64748b !important;
}

/* Dashboard Menu Cards */
[data-theme="dark"] .section-title {
    color: #f1f5f9 !important;
}

[data-theme="dark"] .menu-card {
    border-color: #334155 !important;
}

[data-theme="dark"] .menu-card h3 {
    color: #f1f5f9 !important;
}

[data-theme="dark"] .menu-card p {
    color: #94a3b8 !important;
}

/* Project Intros */
[data-theme="dark"] .project-intro-text h2 {
    color: #f1f5f9 !important;
}

[data-theme="dark"] .project-intro-subtitle {
    color: #cbd5e1 !important;
}

[data-theme="dark"] .project-intro-desc {
    color: #94a3b8 !important;
}

[data-theme="dark"] .project-intro-logo {
    background: #0f172a !important;
    border-color: #334155 !important;
}

/* Main Footer */
[data-theme="dark"] .main-footer {
    background-color: #0f172a !important;
    border-top: 1px solid #1e293b !important;
}

[data-theme="dark"] .footer-divider {
    background-color: #1e293b !important;
}

[data-theme="dark"] .footer-cta-title {
    color: #f1f5f9 !important;
}

[data-theme="dark"] .footer-cta-sub {
    color: #94a3b8 !important;
}

[data-theme="dark"] .footer-brand {
    color: #cbd5e1 !important;
}

[data-theme="dark"] .copyright {
    color: #64748b !important;
}

[data-theme="dark"] .social-btn {
    background: #1e293b !important;
    border-color: #334155 !important;
}

[data-theme="dark"] .social-btn span {
    color: #cbd5e1 !important;
}

/* Interactive Components inside banner container */
[data-theme="dark"] .banner-container {
    background-color: #0f172a !important;
}

[data-theme="dark"] .banner-title {
    color: #f1f5f9 !important;
}

[data-theme="dark"] .tool-top-nav {
    border-bottom: 1px solid #334155 !important;
}

[data-theme="dark"] .tool-top-nav .nav-link {
    color: #94a3b8 !important;
}

[data-theme="dark"] .tool-top-nav .nav-link.active {
    color: #34D399 !important;
    border-bottom-color: #34D399 !important;
}

[data-theme="dark"] .email-dialog {
    background: #1e293b !important;
    color: #f1f5f9 !important;
}

[data-theme="dark"] .modal-title {
    color: #f1f5f9 !important;
}

[data-theme="dark"] .modal-header {
    border-bottom-color: #334155 !important;
}

[data-theme="dark"] .input-pastel {
    background: #0f172a !important;
    border-color: #334155 !important;
    color: #f1f5f9 !important;
}

[data-theme="dark"] .form-group label {
    color: #cbd5e1 !important;
}

/* Scroll Progress Bar styling */
.scroll-progress-bar {
    position: fixed;
    top: 0;
    left: 0;
    height: 4px;
    background: linear-gradient(90deg, #10B981, #34D399, #059669);
    width: 0%;
    z-index: 9999;
    transition: width 0.05s ease-out;
}

/* --- END public/assets/css/core/base.css --- */

/* --- BEGIN public/assets/css/core/navbar.css --- */
/**
 * navbar.css
 * Main navigation bar (Pastel Casual theme, v1.4 — Flag Active Fix)
 * Extracted from app/Views/layout/navbar.php (RFC-UI-V3 layout externalization).
 */

.main-navbar {
    background-color: rgba(255, 255, 255, 0.85);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border-bottom: 1px solid rgba(241, 245, 249, 0.8);
    position: sticky;
    top: 0;
    z-index: 2000;
    padding: 15px 0;
    transition: all 0.3s ease;
}
.main-navbar.scrolled {
    background-color: rgba(255, 255, 255, 0.95);
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.03);
    padding: 10px 0;
}

.nav-container {
    max-width: 1600px;
    margin: 0 auto;
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 0 28px;
}

/* Logo */
.nav-logo {
    text-decoration: none;
    display: flex;
    align-items: center;
    gap: 8px;
    white-space: nowrap;
}
.nav-logo-image {
    display: block;
    width: 142px;
    height: 32px;
    object-fit: contain;
    object-position: left center;
}
.nav-logo-image-dark { display: none; }
.version-badge {
    font-size: 0.7rem;
    color: #047857;
    background: #D1FAE5;
    padding: 4px 7px;
    border-radius: 8px;
    font-weight: 700;
    vertical-align: middle;
}

[data-theme="dark"] .nav-logo-image-light { display: none; }
[data-theme="dark"] .nav-logo-image-dark { display: block; }
[data-theme="dark"] .version-badge {
    color: #A7F3D0;
    background: rgba(16, 185, 129, 0.16);
}

@media (max-width: 480px) {
    .nav-logo-image { width: 124px; height: 28px; }
    .version-badge { display: none; }
}

/* Desktop Links */
.nav-links { list-style: none; display: flex; gap: 20px; align-items: center; margin: 0; padding: 0; }
.nav-item {
    text-decoration: none; color: #64748B; font-weight: 600; font-size: 0.95rem;
    transition: color 0.2s;
    position: relative;
    background: none; border: none; cursor: pointer; padding: 0;
    white-space: nowrap;
}
.nav-item:hover { color: #3B82F6; }
.nav-item.active { color: #3B82F6; }
.nav-item.active::after {
    content: ''; position: absolute; bottom: -24px; left: 0; width: 100%; height: 3px;
    background: #3B82F6; border-radius: 3px 3px 0 0;
}

/* Dropdown — RFC-V4 P12: hover bridge + 키보드/클릭 지원 */
.dropdown { position: relative; }
.dropdown-toggle::after {
    content: ' ▾';
    font-size: 0.8em;
    opacity: 0.6;
    margin-left: 2px;
}

/* 버튼-메뉴 사이 invisible hover bridge (margin → padding 변환) */
.dropdown-menu {
    position: absolute;
    top: 100%; right: 0;
    /* padding-top 으로 버튼과 메뉴 사이를 채워서 hover 가 끊기지 않음 */
    padding: 15px 0 0 0;
    margin: 0;
    background: transparent;
    box-shadow: none;
    border: none;
    border-radius: 0;
    min-width: 200px;
    display: none;
    flex-direction: column;
    gap: 0;
}

/* 실제 메뉴 박스는 padding-top 안쪽의 inner wrapper 로 */
.dropdown-menu::before {
    content: '';
    position: absolute;
    top: 15px; left: 0; right: 0; bottom: 0;
    background: #fff;
    border: 1px solid #F1F5F9;
    border-radius: 16px;
    box-shadow: 0 10px 30px rgba(0,0,0,0.1);
    z-index: -1;
}

.dropdown-menu .dropdown-item {
    position: relative;
    margin: 0 10px;
}
.dropdown-menu .dropdown-item:first-of-type { margin-top: 10px; }
.dropdown-menu .dropdown-item:last-of-type  { margin-bottom: 10px; }

/* 실제 open state와 aria-expanded가 어긋나지 않도록 JS 토글을 단일 진입점으로 쓴다. */
.dropdown.is-open .dropdown-menu {
    display: flex;
    animation: slideDown 0.18s ease;
}
@keyframes slideDown {
    from { opacity: 0; transform: translateY(-6px); }
    to   { opacity: 1; transform: translateY(0); }
}

.dropdown-item {
    display: block; padding: 10px 15px;
    color: #334155; font-size: 0.9rem; font-weight: 500;
    border-radius: 8px;
    transition: background 0.15s, color 0.15s;
    text-decoration: none;
    white-space: nowrap;
}
.dropdown-item:hover, .dropdown-item:focus {
    background: #F8FAFC;
    color: #3B82F6;
    outline: none;
}
.dropdown-item.active { background: #E0F2FE; color: #0369A1; }

.dropdown-menu .dropdown-divider {
    height: 1px;
    margin: 6px 10px;
    background: #E2E8F0;
    list-style: none;
}
.dropdown-header-link {
    display: flex;
    justify-content: space-between;
    align-items: center;
    background: #F8FAFC;
    font-weight: 700;
}
.nav-tag-badge {
    font-size: 0.68rem;
    font-weight: 700;
    padding: 2px 6px;
    border-radius: 6px;
    background: #EEF2FF;
    color: #4F46E5;
    margin-left: auto;
}
.dropdown-item img {
    border-radius: 6px;
    vertical-align: middle;
    margin-right: 8px;
}
[data-theme="dark"] .dropdown-menu .dropdown-divider { background: #334155; }
[data-theme="dark"] .dropdown-header-link { background: rgba(255, 255, 255, 0.05); }
[data-theme="dark"] .nav-tag-badge { background: rgba(99, 102, 241, 0.2); color: #A5B4FC; }

.dropdown.is-open .dropdown-toggle { color: #3B82F6; }

.nav-btn-pastel {
    background-color: #3B82F6;
    color: #ffffff !important;
    padding: 8px 20px;
    border-radius: 12px;
    font-weight: 700;
    box-shadow: 0 4px 10px rgba(59, 130, 246, 0.2);
    transition: transform 0.2s, box-shadow 0.2s;
    white-space: nowrap;
}
.nav-btn-pastel:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 15px rgba(59, 130, 246, 0.3);
}
.nav-btn-pastel.active {
    background-color: #2563EB;
    box-shadow: inset 0 2px 5px rgba(0,0,0,0.2);
}

/* Language Switcher (Flags) */
.lang-switch {
    display: flex; align-items: center; gap: 8px;
    background: #f1f5f9; padding: 5px 8px; border-radius: 20px;
}
.lang-btn {
    font-size: 1.2rem;
    opacity: 0.4;
    transition: all 0.2s;
    filter: grayscale(100%);
    text-decoration: none;
    line-height: 1;
    cursor: pointer;
}
.lang-btn:hover { opacity: 0.8; filter: grayscale(0%); transform: scale(1.1); }
.lang-btn.active { opacity: 1; filter: grayscale(0%); transform: scale(1.1); }

.lang-switch-mobile {
    display: flex; gap: 15px;
}
.lang-switch-mobile .lang-btn { font-size: 1.5rem; }

.menu-icon { margin-right: 6px; font-size: 1.1rem; vertical-align: middle; }

/* Hamburger */
.nav-toggle {
    background: none; border: none; cursor: pointer; display: flex; flex-direction: column; gap: 6px;
    padding: 5px;
}
.bar { width: 24px; height: 2.5px; background-color: #334155; border-radius: 2px; transition: 0.3s; }

/* Mobile Overlay */
.mobile-overlay {
    display: none; position: fixed; top: 0; left: 0; width: 100%; height: 100vh;
    background: rgba(15, 23, 42, 0.2); backdrop-filter: blur(4px);
    z-index: 2001;
    opacity: 0; transition: opacity 0.3s;
}
.mobile-overlay.is-active { display: flex; opacity: 1; }

.mobile-menu-card {
    position: absolute; top: 20px; right: 20px; width: 280px;
    background: white; padding: 20px; border-radius: 24px;
    box-shadow: 0 20px 50px rgba(0,0,0,0.1);
    transform: translateY(-20px); transition: transform 0.3s cubic-bezier(0.34, 1.56, 0.64, 1);
    max-height: 80vh; overflow-y: auto;
}
.mobile-overlay.is-active .mobile-menu-card { transform: translateY(0); }

.mobile-header { display: flex; justify-content: space-between; align-items: center; margin-bottom: 20px; }
.mobile-title { font-weight: 800; color: #1E293B; font-size: 1.1rem; }
.btn-close-mobile { background: none; border: none; font-size: 1.5rem; color: #94A3B8; cursor: pointer; }

.mobile-links { list-style: none; padding: 0; margin: 0; display: flex; flex-direction: column; gap: 10px; }
.mobile-links a {
    display: block; padding: 12px 15px; text-decoration: none; color: #334155; font-weight: 600;
    background: #F8FAFC; border-radius: 12px; font-size: 1rem;
    transition: background 0.2s;
}
.mobile-links a:hover, .mobile-links a.active { background: #E0F2FE; color: #0369A1; }

/* Mobile menu accordion and group styling */
.mobile-group-title {
    font-size: 0.72rem;
    font-weight: 800;
    text-transform: uppercase;
    color: #94a3b8;
    margin-top: 15px;
    margin-bottom: 5px;
    padding-left: 8px;
    letter-spacing: 1px;
}

.mobile-accordion {
    display: flex;
    flex-direction: column;
}

.mobile-accordion-toggle {
    display: flex;
    justify-content: space-between;
    align-items: center;
    width: 100%;
    text-align: left;
    padding: 12px 15px;
    background: #F8FAFC;
    border-radius: 12px;
    border: none;
    font-size: 1rem;
    font-weight: 600;
    color: #334155;
    cursor: pointer;
    transition: background 0.2s;
}

.mobile-accordion-toggle:hover, 
.mobile-accordion-toggle.active {
    background: #E0F2FE;
    color: #0369A1;
}

.mobile-accordion-toggle .arrow {
    font-size: 0.75rem;
    color: #94a3b8;
    transition: transform 0.2s;
}

.mobile-accordion-toggle.open .arrow {
    transform: rotate(180deg);
}

.mobile-accordion-menu {
    list-style: none;
    padding: 0 0 0 10px;
    margin: 5px 0 0 0;
    display: none;
    flex-direction: column;
    gap: 8px;
    border-left: 2px dashed #cbd5e1;
}

.mobile-accordion-menu.open {
    display: flex;
}

/* Dark mode compatibility support for accordion toggle */
[data-theme="dark"] .mobile-accordion-toggle {
    background: #0f172a !important;
    color: #cbd5e1 !important;
}

[data-theme="dark"] .mobile-accordion-toggle:hover,
[data-theme="dark"] .mobile-accordion-toggle.active {
    background: #334155 !important;
    color: #3b82f6 !important;
}

[data-theme="dark"] .mobile-accordion-menu {
    border-left-color: #334155;
}

/* Visibility */
.desktop-only { display: flex; }
.mobile-only { display: none; }

@media (max-width: 1080px) {
    .desktop-only { display: none; }
    .mobile-only { display: flex; }
}

@media (min-width: 1081px) and (max-width: 1280px) {
    .nav-container { gap: 10px; }
    .nav-links { gap: 4px; }
    .nav-item { padding: 6px 7px; font-size: 0.82rem; }
    .version-badge { display: none; }
    .nav-logo { gap: 5px; }
}

/* ============================================================
 * HAMDAE brand layer — Issue #101
 * ============================================================ */
.main-navbar {
    padding: 11px 0;
    border-bottom-color: rgba(233, 121, 98, 0.12);
    background: rgba(255, 250, 245, 0.88);
}

.main-navbar.scrolled {
    padding: 8px 0;
    background: rgba(255, 250, 245, 0.96);
    box-shadow: 0 8px 26px rgba(96, 74, 61, 0.07);
}

.nav-container {
    gap: 20px;
}

.nav-logo {
    gap: 7px;
}

.nav-hamdae {
    display: grid;
    place-items: center;
    width: 34px;
    height: 34px;
    overflow: hidden;
    margin-left: 2px;
    border: 2px solid rgba(255, 255, 255, 0.9);
    border-radius: 11px;
    background: var(--brand-pink);
    box-shadow: 0 5px 12px rgba(133, 81, 64, 0.12);
    transform: rotate(-3deg);
}

.nav-hamdae img {
    display: block;
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.version-badge {
    padding: 4px 8px;
    color: var(--brand-coral-strong);
    border: 1px solid rgba(233, 121, 98, 0.17);
    border-radius: 999px;
    background: var(--primary-pastel);
    font-size: 0.62rem;
    font-weight: 900;
    letter-spacing: 0.06em;
}

.nav-links {
    gap: 8px;
}

.nav-item {
    min-height: 38px;
    padding: 8px 9px;
    border-radius: 11px;
    color: var(--text-muted);
    font-size: 0.86rem;
    font-weight: 700;
}

.nav-item:hover,
.nav-item.active,
.dropdown.is-open .dropdown-toggle {
    color: var(--brand-coral-strong);
    background: var(--primary-pastel);
}

.nav-item.active::after {
    display: none;
}

.nav-search-button {
    display: grid;
    place-items: center;
    min-width: 38px;
    padding: 7px;
    border: 1px solid var(--card-border);
    background: var(--card-bg);
}

.dropdown-menu::before {
    border-color: var(--card-border);
    background: var(--surface-raised);
    box-shadow: var(--shadow-lift);
}

.dropdown-item {
    color: var(--text-main);
}

.dropdown-item:hover,
.dropdown-item:focus,
.dropdown-item.active {
    color: var(--brand-coral-strong);
    background: var(--primary-pastel);
}

.lang-switch {
    gap: 5px;
    padding: 4px 7px;
    border: 1px solid var(--card-border);
    background: var(--surface-muted);
}

.theme-switch,
.lang-switch-mobile {
    display: flex;
    align-items: center;
}

.theme-switch {
    margin-left: 2px;
}

.theme-btn,
.theme-btn-mobile {
    display: grid;
    place-items: center;
    min-width: 38px;
    min-height: 38px;
    padding: 5px;
    border: 1px solid var(--card-border);
    border-radius: 11px;
    background: var(--card-bg);
    font-size: 1.05rem;
    cursor: pointer;
    transition: transform 0.2s ease, background 0.2s ease;
}

.theme-btn:hover,
.theme-btn-mobile:hover {
    background: var(--brand-lilac);
    transform: rotate(8deg);
}

.mobile-overlay {
    background: rgba(60, 43, 37, 0.30);
    backdrop-filter: blur(8px);
}

.mobile-menu-card {
    border: 1px solid rgba(233, 121, 98, 0.15);
    background: var(--surface-raised);
    box-shadow: var(--shadow-lift);
}

.mobile-title {
    color: var(--text-main);
    font-size: 0.96rem;
    font-weight: 900;
}

.btn-close-mobile {
    display: grid;
    place-items: center;
    width: 38px;
    height: 38px;
    border-radius: 12px;
    color: var(--text-muted);
    background: var(--surface-muted);
}

.mobile-links a,
.mobile-accordion-toggle {
    color: var(--text-main);
    border: 1px solid transparent;
    background: var(--surface-muted);
}

.mobile-links a:hover,
.mobile-links a.active,
.mobile-accordion-toggle:hover,
.mobile-accordion-toggle.active {
    color: var(--brand-coral-strong);
    border-color: rgba(233, 121, 98, 0.16);
    background: var(--primary-pastel);
}

.mobile-tool-link {
    margin-bottom: 2px;
    padding: 10px 12px !important;
    font-size: 0.9rem !important;
}

.mobile-links-spaced {
    margin-top: 5px;
}

.mobile-accordion-menu {
    border-left-color: var(--brand-apricot);
}

[data-theme="dark"] .main-navbar,
[data-theme="dark"] .main-navbar.scrolled {
    border-bottom-color: rgba(255, 154, 132, 0.16);
    background: rgba(28, 24, 23, 0.93);
}

[data-theme="dark"] .version-badge {
    color: var(--brand-coral) !important;
    background: rgba(255, 154, 132, 0.12);
}

[data-theme="dark"] .mobile-accordion-toggle,
[data-theme="dark"] .mobile-links a {
    color: var(--text-main) !important;
    background: var(--surface-muted) !important;
}

[data-theme="dark"] .mobile-accordion-toggle:hover,
[data-theme="dark"] .mobile-accordion-toggle.active,
[data-theme="dark"] .mobile-links a:hover,
[data-theme="dark"] .mobile-links a.active {
    color: var(--brand-coral) !important;
    background: var(--primary-pastel) !important;
}

@media (max-width: 1160px) {
    .nav-hamdae,
    .version-badge {
        display: none;
    }
}

@media (max-width: 480px) {
    .nav-container {
        padding-inline: 16px;
    }

    .mobile-menu-card {
        top: 10px;
        right: 10px;
        width: min(310px, calc(100vw - 20px));
        max-height: calc(100vh - 20px);
        border-radius: 22px;
    }
}

/* --- END public/assets/css/core/navbar.css --- */

/* --- BEGIN public/assets/css/core/footer.css --- */
/**
 * footer.css
 * Footer CTA strip, footer bottom bar, email contact modal
 * Extracted from app/Views/layout/footer.php (RFC-UI-V3 layout externalization).
 */

/* ============================================================
 * Footer CTA & bottom bar
 * ============================================================ */
.footer-cta {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 20px;
    background: linear-gradient(135deg, var(--primary-pastel), rgba(255, 217, 234, 0.72));
    border: 1px solid rgba(233, 121, 98, 0.18);
    border-radius: var(--radius-lg);
    padding: 24px 30px;
    margin-bottom: 30px;
    flex-wrap: wrap;
}
.footer-cta-main {
    display: flex;
    align-items: center;
    gap: 16px;
    min-width: 0;
}
.footer-hamdae {
    width: 72px;
    height: 72px;
    overflow: hidden;
    flex: 0 0 auto;
    border: 3px solid rgba(255, 255, 255, 0.84);
    border-radius: 22px;
    background: var(--brand-pink);
    box-shadow: 0 8px 18px rgba(117, 72, 57, 0.13);
    transform: rotate(-3deg);
}
.footer-hamdae img {
    display: block;
    width: 100%;
    height: 100%;
    object-fit: cover;
}
.footer-cta-title {
    font-weight: 900;
    color: var(--text-main);
    font-size: 1rem;
    margin: 0 0 4px 0;
}
.footer-cta-sub {
    font-size: 0.85rem;
    color: var(--text-muted);
    margin: 0;
}
.footer-cta-btn {
    white-space: nowrap;
    flex-shrink: 0;
    color: #fff;
    background: linear-gradient(135deg, var(--brand-coral), var(--brand-coral-strong));
    box-shadow: 0 8px 18px rgba(201, 87, 67, 0.22);
}
/* ── Footer Navigation Directory (RFC-UI-V5) ──────── */
.footer-nav-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 32px 24px;
    margin-bottom: 32px;
}
.footer-nav-col {
    display: flex;
    flex-direction: column;
}
.footer-nav-title {
    font-size: 0.86rem;
    font-weight: 900;
    color: var(--text-main);
    margin: 0 0 14px 0;
    display: flex;
    align-items: center;
    gap: 7px;
    letter-spacing: 0.03em;
}
.footer-nav-icon {
    font-size: 1rem;
}
.footer-nav-list {
    list-style: none;
    padding: 0;
    margin: 0;
    display: flex;
    flex-direction: column;
    gap: 9px;
}
.footer-nav-link {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    color: var(--text-muted);
    text-decoration: none;
    font-size: 0.82rem;
    font-weight: 600;
    transition: color 0.15s ease, transform 0.15s ease;
    min-height: 22px;
}
.footer-nav-link:hover,
.footer-nav-link:focus-visible {
    color: var(--brand-coral-strong, #D85A42);
    transform: translateX(3px);
    outline: none;
}
.footer-nav-item-icon {
    font-size: 0.92rem;
    width: 18px;
    display: inline-flex;
    justify-content: center;
    flex-shrink: 0;
}
.footer-nav-item-text {
    flex: 1;
    min-width: 0;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}
.footer-badge-release {
    font-size: 0.65rem;
    font-weight: 800;
    color: #15803d;
    background: #dcfce7;
    border: 1px solid #bbf7d0;
    padding: 1px 6px;
    border-radius: 999px;
    margin-left: 6px;
    flex-shrink: 0;
    letter-spacing: 0.02em;
}

[data-theme="dark"] .footer-badge-release {
    color: #4ade80;
    background: rgba(34, 197, 94, 0.16);
    border-color: rgba(34, 197, 94, 0.3);
}

[data-theme="dark"] .footer-nav-link:hover,
[data-theme="dark"] .footer-nav-link:focus-visible {
    color: #38bdf8;
}

@media (max-width: 991px) {
    .footer-nav-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 28px 20px;
    }
}

@media (max-width: 540px) {
    .footer-nav-grid {
        grid-template-columns: 1fr;
        gap: 22px;
    }
}

.footer-divider {
    height: 1px;
    background: var(--card-border);
    margin-bottom: 24px;
}
.footer-bottom {
    display: flex;
    align-items: center;
    justify-content: space-between;
    flex-wrap: wrap;
    gap: 16px;
}
.footer-legal {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    font-size: 0.82rem;
}
.footer-legal-link {
    color: var(--text-muted);
    text-decoration: none;
    transition: color 0.2s ease;
}
.footer-legal-link:hover {
    color: var(--brand-coral, #E97962);
    text-decoration: underline;
}
.footer-legal-sep {
    color: var(--text-muted);
    opacity: 0.4;
}
.footer-brand {
    display: inline-flex;
    align-items: center;
    gap: 9px;
    color: var(--text-main);
    font-weight: 900;
    font-size: 1rem;
    cursor: default;
}
.footer-brand > img {
    width: 30px;
    height: 30px;
    border: 2px solid rgba(255, 255, 255, 0.8);
    border-radius: 10px;
    object-fit: cover;
}
.footer-version {
    font-size: 0.7rem;
    color: var(--brand-coral-strong);
    background: var(--primary-pastel);
    padding: 2px 6px;
    border-radius: 6px;
    font-weight: 700;
    vertical-align: middle;
    margin-left: 4px;
}
@media (max-width: 600px) {
    .footer-cta { flex-direction: column; align-items: flex-start; }
    .footer-cta-main { align-items: flex-start; }
    .footer-hamdae { width: 58px; height: 58px; border-radius: 18px; }
    .footer-cta-btn { width: 100%; justify-content: center; }
    .footer-bottom { flex-direction: column; align-items: center; text-align: center; }
}

.main-footer {
    border-top-color: rgba(233, 121, 98, 0.12);
    background: rgba(255, 250, 245, 0.82);
}

[data-theme="dark"] .main-footer {
    background: rgba(28, 24, 23, 0.86);
}

/* ============================================================
 * Email contact modal (dialog)
 * ============================================================ */
.email-dialog {
    border: none;
    border-radius: 20px;
    padding: 0;
    box-shadow: 0 25px 50px -12px rgba(0, 0, 0, 0.25);
    max-width: 400px;
    width: 90%;
    background: var(--surface-raised);
}
.email-dialog::backdrop { background: rgba(0, 0, 0, 0.5); backdrop-filter: blur(4px); }

.input-pastel {
    padding: 12px;
    border: 1px solid var(--card-border);
    border-radius: 12px;
    font-size: 0.95rem;
    color: var(--text-main);
    background: var(--surface-muted);
    transition: border-color 0.2s;
    width: 100%;
    box-sizing: border-box;
}
.input-pastel:focus { outline: none; border-color: var(--brand-coral); background: var(--surface-raised); }

.form-group label {
    display: block;
    margin-bottom: 6px;
    font-weight: 600;
    color: var(--text-muted);
    font-size: 0.9rem;
}

/* Modal content wrapper padding & premium styling */
.modal-content {
    padding: 30px;
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.modal-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    border-bottom: 1px solid var(--card-border);
    padding-bottom: 14px;
    margin-bottom: 6px;
}

.modal-title {
    font-size: 1.4rem;
    font-weight: 800;
    color: var(--text-main);
    font-family: var(--font-display);
    letter-spacing: -0.5px;
    margin: 0;
    line-height: 1.2;
}

.btn-close {
    background: none;
    border: none;
    font-size: 1.5rem;
    line-height: 1;
    color: #94a3b8;
    cursor: pointer;
    transition: all 0.2s ease;
    padding: 6px;
    margin-right: -6px;
    border-radius: 8px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 32px;
    height: 32px;
}

.btn-close:hover {
    color: #ef4444;
    background: #fef2f2;
    transform: rotate(90deg);
}

/* Form spacing refinements */
.form-group {
    display: flex;
    flex-direction: column;
}

.form-group.mb-10 {
    margin-bottom: 16px;
}

.form-group.mb-20 {
    margin-bottom: 24px;
}

/* Input design refinement */
.input-pastel {
    margin-top: 4px;
    padding: 13px 16px;
    font-family: var(--font-main);
    border: 1px solid var(--card-border);
}

.input-pastel:focus {
    border-color: var(--brand-coral);
    box-shadow: var(--focus-ring);
}

/* Submit button premium touch */
.email-dialog button[type="submit"] {
    padding: 14px;
    border-radius: 12px;
    font-size: 1rem;
    font-weight: 700;
    cursor: pointer;
    transition: all 0.25s cubic-bezier(0.4, 0, 0.2, 1);
    border: none;
    box-shadow: 0 4px 12px rgba(59, 130, 246, 0.2);
}

.email-dialog button[type="submit"]:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(59, 130, 246, 0.35);
}

.email-dialog button[type="submit"]:active {
    transform: translateY(0);
}

/* ============================================================
 * Command Palette (Ctrl + K)
 * ============================================================ */
.cmd-dialog {
    border: none;
    border-radius: 20px;
    padding: 0;
    box-shadow: 0 25px 50px -12px rgba(0, 0, 0, 0.4);
    max-width: 500px;
    width: 90%;
    background: #ffffff;
    overflow: hidden;
}

.cmd-dialog::backdrop {
    background: rgba(15, 23, 42, 0.4);
    backdrop-filter: blur(8px);
}

.cmd-container {
    display: flex;
    flex-direction: column;
}

.cmd-search-wrapper {
    display: flex;
    align-items: center;
    padding: 16px 20px;
    gap: 12px;
    background: #ffffff;
}

.cmd-search-icon {
    font-size: 1.2rem;
    color: #94a3b8;
}

.cmd-input {
    flex: 1;
    border: none;
    outline: none;
    font-size: 1.05rem;
    font-family: inherit;
    color: #1e293b;
    background: transparent;
}

.cmd-esc-badge {
    font-size: 0.72rem;
    font-weight: 700;
    color: #64748b;
    background: #f1f5f9;
    border: 1px solid #cbd5e1;
    padding: 2px 6px;
    border-radius: 4px;
    box-shadow: 0 1px 2px rgba(0,0,0,0.05);
}

.cmd-divider {
    height: 1px;
    background: #e2e8f0;
}

.cmd-results {
    list-style: none;
    padding: 8px;
    margin: 0;
    max-height: 280px;
    overflow-y: auto;
    background: #f8fafc;
}

.cmd-item {
    display: flex;
    align-items: center;
    gap: 14px;
    padding: 10px 14px;
    border-radius: 10px;
    cursor: pointer;
    transition: all 0.15s ease;
    text-decoration: none;
    color: #334155;
}

.cmd-item-icon {
    font-size: 1.3rem;
    display: flex;
    align-items: center;
    justify-content: center;
    width: 32px;
    height: 32px;
    background: #ffffff;
    border-radius: 8px;
    box-shadow: 0 2px 4px rgba(0,0,0,0.02);
}

.cmd-item-info {
    display: flex;
    flex-direction: column;
}

.cmd-item-title {
    font-size: 0.95rem;
    font-weight: 700;
    color: #1e293b;
}

.cmd-item-desc {
    font-size: 0.78rem;
    color: #64748b;
    margin-top: 2px;
}

.cmd-item:hover,
.cmd-item.selected {
    background: #3b82f6;
    color: #ffffff;
}

.cmd-item:hover .cmd-item-title,
.cmd-item.selected .cmd-item-title,
.cmd-item:hover .cmd-item-desc,
.cmd-item.selected .cmd-item-desc {
    color: #ffffff;
}

.cmd-item:hover .cmd-item-icon,
.cmd-item.selected .cmd-item-icon {
    background: rgba(255, 255, 255, 0.2);
    box-shadow: none;
}

.cmd-footer {
    display: flex;
    gap: 16px;
    padding: 10px 20px;
    background: #ffffff;
    border-top: 1px solid #e2e8f0;
    font-size: 0.75rem;
    color: #94a3b8;
    font-weight: 500;
}

/* ============================================================
 * Command Palette - Dark Mode Support
 * ============================================================ */
[data-theme="dark"] .cmd-dialog {
    background: #1e293b !important;
    box-shadow: 0 25px 50px -12px rgba(0, 0, 0, 0.6) !important;
}

[data-theme="dark"] .cmd-search-wrapper,
[data-theme="dark"] .cmd-footer {
    background: #1e293b !important;
    border-color: #334155 !important;
}

[data-theme="dark"] .cmd-input {
    color: #f1f5f9 !important;
}

[data-theme="dark"] .cmd-divider {
    background: #334155 !important;
}

[data-theme="dark"] .cmd-results {
    background: #0f172a !important;
}

[data-theme="dark"] .cmd-item {
    color: #cbd5e1 !important;
}

[data-theme="dark"] .cmd-item-title {
    color: #f1f5f9 !important;
}

[data-theme="dark"] .cmd-item-desc {
    color: #94a3b8 !important;
}

[data-theme="dark"] .cmd-item-icon {
    background: #1e293b !important;
    color: #cbd5e1 !important;
}

[data-theme="dark"] .cmd-esc-badge {
    background: #334155 !important;
    border-color: #475569 !important;
    color: #cbd5e1 !important;
}

[data-theme="dark"] .footer-version {
    color: var(--brand-coral) !important;
}

/* --- END public/assets/css/core/footer.css --- */

/* --- BEGIN public/assets/css/core/layout.css --- */
/**
 * layout.css
 * Flexbox/Grid based responsive layout system
 */
.l-main-container {
    display: flex;
    flex-direction: column;
    min-height: 100vh;
}

.l-content-area {
    flex: 1;
    display: flex;
    justify-content: center;
    align-items: center;
    padding: var(--spacing-base);
}

.l-responsive-wrapper {
    width: 100%;
    max-width: 1600px;
    margin: 0 auto;
}

/* Flexbox Utilities */
.u-flex { display: flex; }
.u-flex-column { flex-direction: column; }
.u-flex-center { justify-content: center; align-items: center; }

/* Grid Utilities */
.u-grid { display: grid; }

/* Visibility */
.u-mobile-only { display: block; }
@media (min-width: 768px) {
    .u-mobile-only { display: none; }
}

/* ──────────────────────────────────────────────────────────────
 * RFC-V4 P7: *-main-layout 직속 .card-ui 자식 균등 분배 (global)
 *
 * 16 개 컴포넌트가 동일 패턴 (.X-main-layout { display: flex|grid }
 * + 자식 .card-ui) 인데 flex 모드에선 자식 flex 미지정 시 콘텐츠
 * 기반 폭만 차지해 layout 폭을 다 못 씀. grid 모드 컴포넌트는
 * grid item 이라 아래 flex 속성 무시되어 영향 없음.
 *
 * 예외:
 *   - sidebar 패턴 (sidebar-info / sidebar-layout / sidebar-left /
 *     cd-pro-sidebar) 은 고정 폭 유지
 *   - .ping-main-layout 은 flex-direction:column + 첫 카드 auto
 *     height + 둘째 .flex-1 자체 처리 — 글로벌 적용 시 회귀하므로
 *     :not() 으로 직접 제외
 * ────────────────────────────────────────────────────────────── */
[class$="-main-layout"]:not(.ping-main-layout) > .card-ui {
    flex: 1 1 0;
    min-width: 0;
}
[class$="-main-layout"] > .sidebar-info,
[class$="-main-layout"] > .sidebar-layout,
[class$="-main-layout"] > .sidebar-left,
[class$="-main-layout"] > .cd-pro-sidebar {
    flex: 0 0 auto;
}

/* --- END public/assets/css/core/layout.css --- */

/* --- BEGIN public/assets/css/core/utilities.css --- */
/* GY-ENGINE Utility Classes v1.0 — 모든 컴포넌트 공용 */
/* 이 파일은 header.php에서 전역 로드됨 — 컴포넌트 내 중복 정의 금지 */

/* ── Display ─────────────────────────────────────────── */
.flex          { display: flex; }
.inline-flex   { display: inline-flex; }
.block         { display: block; }
.hidden        { display: none; }
.grid          { display: grid; }

/* ── Flex Direction ──────────────────────────────────── */
.flex-col      { flex-direction: column; }
.flex-row      { flex-direction: row; }
.flex-wrap     { flex-wrap: wrap; }

/* ── Flex Alignment ──────────────────────────────────── */
.items-center    { align-items: center; }
.items-start     { align-items: flex-start; }
.items-end       { align-items: flex-end; }
.justify-center  { justify-content: center; }
.justify-between { justify-content: space-between; }
.justify-end     { justify-content: flex-end; }
.flex-between    { display: flex; justify-content: space-between; align-items: center; }
.flex-1          { flex: 1; }
.flex-shrink-0   { flex-shrink: 0; }
.ml-auto         { margin-left: auto; }

/* ── Gap ─────────────────────────────────────────────── */
.gap-4  { gap: 4px; }
.gap-5  { gap: 5px; }
.gap-8  { gap: 8px; }
.gap-10 { gap: 10px; }
.gap-12 { gap: 12px; }
.gap-15 { gap: 15px; }
.gap-20 { gap: 20px; }

/* ── Grid ────────────────────────────────────────────── */
.grid-cols-2 { grid-template-columns: 1fr 1fr; }
.grid-cols-3 { grid-template-columns: repeat(3, 1fr); }

/* ── Padding ─────────────────────────────────────────── */
.p-0   { padding: 0 !important; }
.p-5   { padding: 5px; }
.p-8   { padding: 8px; }
.p-10  { padding: 10px; }
.p-15  { padding: 15px; }
.p-20  { padding: 20px; }
.px-10 { padding-left: 10px; padding-right: 10px; }
.px-15 { padding-left: 15px; padding-right: 15px; }
.px-20 { padding-left: 20px; padding-right: 20px; }
.py-5  { padding-top: 5px; padding-bottom: 5px; }
.py-10 { padding-top: 10px; padding-bottom: 10px; }
.pt-5  { padding-top: 5px; }
.pt-10 { padding-top: 10px; }
.pb-10 { padding-bottom: 10px; }

/* ── Margin ──────────────────────────────────────────── */
.m-0   { margin: 0; }
.mt-5  { margin-top: 5px; }
.mt-10 { margin-top: 10px; }
.mb-0  { margin-bottom: 0; }
.mb-5  { margin-bottom: 5px; }
.mb-8  { margin-bottom: 8px; }
.mb-10 { margin-bottom: 10px; }
.mb-15 { margin-bottom: 15px; }
.mb-20 { margin-bottom: 20px; }

/* ── Typography ──────────────────────────────────────── */
.text-xs    { font-size: 11px; }
.text-sm    { font-size: 13px; }
.text-base  { font-size: 14px; }
.font-bold  { font-weight: 700; }
.font-800   { font-weight: 800; }
.uppercase  { text-transform: uppercase; }
.text-gray  { color: #64748b; }
.text-light { color: #f8fafc; }
.text-blue  { color: #3b82f6; }
.text-pink  { color: #db2777; }
.text-green { color: #16a34a; }
.text-center { text-align: center; }
.text-left  { text-align: left; }
.code-font  { font-family: 'JetBrains Mono', 'Fira Code', monospace; }

/* ── Border ──────────────────────────────────────────── */
.border       { border: 1px solid #e2e8f0; }
.border-b     { border-bottom: 1px solid #e2e8f0; }
.border-t     { border-top: 1px solid #e2e8f0; }
.border-r     { border-right: 1px solid #e2e8f0; }
.border-l     { border-left: 1px solid #e2e8f0; }
.rounded      { border-radius: 8px; }
.rounded-lg   { border-radius: 12px; }
.rounded-full { border-radius: 9999px; }

/* ── Background ──────────────────────────────────────── */
.bg-white  { background: #fff; }
.bg-light  { background: #f8fafc; }
.bg-dark   { background: #1e293b; }
.bg-dark-header { background: #0f172a; }
.bg-black  { background: #000; }

/* ── Overflow / Size ─────────────────────────────────── */
.overflow-hidden  { overflow: hidden; }
.overflow-auto    { overflow: auto; }
.overflow-x-auto  { overflow-x: auto; }
.w-100    { width: 100%; box-sizing: border-box; }
.h-100    { height: 100%; }
.min-w-0  { min-width: 0; }
.relative { position: relative; }
.absolute { position: absolute; }

/* ── Badge ───────────────────────────────────────────── */
.badge {
    display: inline-flex;
    align-items: center;
    padding: 3px 10px;
    border-radius: 20px;
    font-size: 11px;
    font-weight: 700;
}
.badge.bg-blue  { background: #3b82f6; color: #fff; }
.badge.bg-red   { background: #ef4444; color: #fff; }
.badge.bg-green { background: #22c55e; color: #fff; }

/* ── Buttons ─────────────────────────────────────────── */
.btn-sm {
    padding: 6px 13px;
    border-radius: 8px;
    border: 1px solid var(--card-border, #e2e8f0);
    font-size: 12px;
    font-weight: 700;
    cursor: pointer;
    transition: all 0.15s ease;
    background: var(--surface-muted, #f1f5f9);
    color: var(--text-main, #334155);
    display: inline-flex;
    align-items: center;
    gap: 6px;
}
.btn-sm:hover {
    background: var(--card-border, #e2e8f0);
    transform: translateY(-1px);
}

.btn-tool {
    padding: 7px 14px;
    border-radius: 8px;
    border: 1px solid var(--card-border, #e2e8f0);
    font-size: 12px;
    font-weight: 700;
    cursor: pointer;
    transition: all 0.15s ease;
    background: var(--surface-muted, #f1f5f9);
    color: var(--text-main, #334155);
    display: inline-flex;
    align-items: center;
    gap: 6px;
}
.btn-tool:hover {
    background: var(--card-border, #e2e8f0);
    transform: translateY(-1px);
}
.btn-tool.blue {
    background: #2563eb;
    color: #ffffff;
    border-color: #2563eb;
    box-shadow: 0 2px 6px rgba(37, 99, 235, 0.25);
}
.btn-tool.blue:hover {
    background: #1d4ed8;
    border-color: #1d4ed8;
}
.btn-tool.green {
    background: #059669;
    color: #ffffff;
    border-color: #059669;
    box-shadow: 0 2px 6px rgba(5, 150, 105, 0.25);
}
.btn-tool.green:hover {
    background: #047857;
    border-color: #047857;
}
.btn-tool.pink {
    background: #e11d48;
    color: #ffffff;
    border-color: #e11d48;
    box-shadow: 0 2px 6px rgba(225, 29, 72, 0.25);
}
.btn-tool.pink:hover {
    background: #be123c;
    border-color: #be123c;
}
.btn-tool.outline {
    background: transparent;
    border: 1px solid var(--card-border, #cbd5e1);
    color: var(--text-muted, #475569);
}
.btn-tool.outline:hover {
    background: rgba(37, 99, 235, 0.06);
    color: var(--text-main, #1e293b);
    border-color: #2563eb;
}

.btn-chip {
    background: var(--surface-muted, #f1f5f9);
    border: 1px solid var(--card-border, #e2e8f0);
    padding: 4px 10px;
    border-radius: 999px;
    font-size: 11px;
    font-weight: 700;
    cursor: pointer;
    color: var(--text-muted, #64748b);
    transition: all 0.15s ease;
}
.btn-chip:hover  { background: var(--card-border, #e2e8f0); color: var(--text-main); }
.btn-chip.pink   { background: rgba(225, 29, 72, 0.1); color: #e11d48; border-color: rgba(225, 29, 72, 0.25); }
.btn-chip.blue   { background: rgba(37, 99, 235, 0.1); color: #2563eb; border-color: rgba(37, 99, 235, 0.25); }

.btn-outline {
    background: transparent;
    border: 1px solid var(--card-border, #cbd5e1);
    color: var(--text-muted, #475569);
    padding: 6px 12px;
    border-radius: 8px;
    font-size: 12px;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.15s ease;
    display: inline-flex;
    align-items: center;
    gap: 6px;
}
.btn-outline:hover {
    background: rgba(37, 99, 235, 0.06);
    color: var(--text-main, #1e293b);
    border-color: #2563eb;
}
.btn-text-only { background: none; border: none; cursor: pointer; color: var(--text-muted); }
.btn-icon-sm   { background: none; border: none; cursor: pointer; font-size: 18px; padding: 0 4px; color: var(--text-muted); }

/* ── Form Elements ───────────────────────────────────── */
.input-pastel {
    padding: 8px 12px;
    font-size: 13px;
    border-radius: 8px;
    border: 1px solid var(--card-border, #cbd5e1);
    background: var(--card-bg, #ffffff);
    color: var(--text-main, #1e293b);
    transition: all 0.2s ease;
    font-family: inherit;
    outline: none;
}
.input-pastel:focus {
    border-color: #2563eb;
    box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.15);
}

.form-group label {
    display: block;
    margin-bottom: 5px;
    font-weight: 700;
    color: var(--text-muted, #475569);
    font-size: 0.82rem;
}

/* ── Card / Panel ────────────────────────────────────── */
.editor-card {
    background: var(--card-bg, #ffffff);
    border: 1px solid var(--card-border, #e2e8f0);
    border-radius: 14px;
    box-shadow: var(--card-shadow, 0 2px 10px rgba(0,0,0,0.04));
    overflow: hidden;
}
.editor-toolbar {
    padding: 10px 14px;
    background: var(--surface-muted, #f8fafc);
    border-bottom: 1px solid var(--card-border, #e2e8f0);
}

/* ── Dark Mode Overrides for Tool Elements ──────────── */
[data-theme="dark"] .btn-sm,
[data-theme="dark"] .btn-tool {
    background: var(--surface-muted);
    color: var(--text-main);
    border-color: var(--card-border);
}
[data-theme="dark"] .btn-sm:hover,
[data-theme="dark"] .btn-tool:hover {
    background: rgba(255, 255, 255, 0.1);
    border-color: var(--card-border);
}
[data-theme="dark"] .btn-tool.outline,
[data-theme="dark"] .btn-outline {
    background: transparent;
    border-color: var(--card-border);
    color: var(--text-muted);
}
[data-theme="dark"] .btn-tool.outline:hover,
[data-theme="dark"] .btn-outline:hover {
    background: rgba(96, 165, 250, 0.15);
    color: #93c5fd;
    border-color: #60a5fa;
}
[data-theme="dark"] .input-pastel {
    background: var(--surface-muted);
    color: var(--text-main);
    border-color: var(--card-border);
}
[data-theme="dark"] .input-pastel:focus {
    border-color: #60a5fa;
    box-shadow: 0 0 0 3px rgba(96, 165, 250, 0.2);
}
[data-theme="dark"] .editor-toolbar {
    background: rgba(0, 0, 0, 0.2);
    border-bottom-color: var(--card-border);
}
.editor-toolbar {
    padding: 8px 14px;
    border-bottom: 1px solid var(--card-border, #e2e8f0);
    display: flex;
    align-items: center;
    justify-content: space-between;
    min-height: 40px;
}
.editor-toolbar .label {
    font-size: 12px;
    font-weight: 700;
    color: #475569;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}
.config-panel {
    display: flex;
    align-items: center;
    gap: 16px;
    padding: 10px 16px;
    border-radius: 12px;
    border: 1px solid #e2e8f0;
    background: #fff;
}
.panel-header {
    display: flex;
    align-items: center;
    gap: 10px;
}
.panel-header h3 {
    margin: 0;
    font-size: 1rem;
    font-weight: 700;
    color: #1e293b;
}

/* ── Section Tags ────────────────────────────────────── */
.section-tag {
    display: block;
    font-size: 10px;
    font-weight: 800;
    text-transform: uppercase;
    letter-spacing: 0.8px;
    color: #94a3b8;
    margin-bottom: 10px;
}

/* ── Prop Section ────────────────────────────────────── */
.prop-section {
    background: #fff;
    border: 1px solid #e2e8f0;
    border-radius: 10px;
    padding: 14px;
}

/* ── Animation ───────────────────────────────────────── */
@keyframes pulse {
    0%, 100% { opacity: 1; }
    50%       { opacity: 0.4; }
}
.animate-pulse { animation: pulse 2s infinite; }

@keyframes fadeInUp {
    from { opacity: 0; transform: translateY(10px); }
    to   { opacity: 1; transform: translateY(0); }
}
.fade-in-up { animation: fadeInUp 0.3s ease; }

/* ── Ace Editor Container ────────────────────────────── */
.ace-editor-container { width: 100%; min-height: 160px; }
.dark-ace { background: #0f172a; }

/* ── Scrollbar ───────────────────────────────────────── */
.scrollbar-none { scrollbar-width: none; }
.scrollbar-none::-webkit-scrollbar { display: none; }

/* ── Tutorial Hint System ────────────────────────────── */
.btn-hint {
    display: inline-flex;
    align-items: center;
    gap: 5px;
    padding: 5px 12px;
    background: #f0fdf4;
    border: 1px solid #bbf7d0;
    border-radius: 20px;
    font-size: 0.75rem;
    font-weight: 700;
    color: #15803d;
    cursor: pointer;
    transition: all 0.2s;
    white-space: nowrap;
    flex-shrink: 0;
}
.btn-hint:hover { background: #dcfce7; border-color: #86efac; transform: translateY(-1px); }
.btn-hint.is-open { background: #dcfce7; border-color: #86efac; }

.hint-panel {
    background: linear-gradient(135deg, #f0fdf4 0%, #eff6ff 100%);
    border: 1px solid #bbf7d0;
    border-radius: 16px;
    padding: 16px 20px;
    margin-top: 10px;
    animation: hint-slide-in 0.25s ease;
}
@keyframes hint-slide-in {
    from { opacity: 0; transform: translateY(-8px); }
    to   { opacity: 1; transform: translateY(0); }
}

.hint-panel[hidden] { display: none; }

.hint-title {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 0.82rem;
    font-weight: 800;
    color: #15803d;
    margin-bottom: 10px;
}

.hint-steps {
    margin: 0;
    padding-left: 20px;
    display: flex;
    flex-direction: column;
    gap: 6px;
}
.hint-steps li {
    font-size: 0.82rem;
    color: #374151;
    line-height: 1.5;
    padding-left: 4px;
}
.hint-steps li strong { color: #1e293b; }
.hint-steps li code {
    background: rgba(255,255,255,0.8);
    border: 1px solid #d1fae5;
    padding: 1px 5px;
    border-radius: 4px;
    font-size: 0.78rem;
    color: #065f46;
    font-family: 'Consolas', monospace;
}

.hint-tip {
    margin-top: 10px;
    padding: 8px 12px;
    background: rgba(255,255,255,0.6);
    border-radius: 10px;
    font-size: 0.78rem;
    color: #475569;
    border: 1px solid rgba(255,255,255,0.8);
}

/* --- END public/assets/css/core/utilities.css --- */

/* --- BEGIN public/assets/css/core/ads.css --- */
/**
 * ads.css — AdSense 유닛 공통 표현 계층
 *
 * [RFC-AdSense-UX-V1] 상단 배너 전면 제거 → in-feed / in-article / multiplex 3계층.
 *
 * 설계 원칙
 *  1. 높이는 "실제 서빙 사이즈"에 맞춰 예약한다. (기존 min-height:90px 는 250~336px 광고를
 *     받으면서 오히려 200px 점프를 만들었다 — CLS 방지 실패.)
 *  2. 미충전(unfilled)은 ads.js 가 .is-empty 를 붙이고 여기서 완전히 collapse 한다.
 *     차단기 사용자/재고 없음 상황에서 빈 박스가 남지 않는다.
 *  3. "광고" 라벨을 항상 표기해 도구 카드(.menu-card)와 시각적으로 분리한다.
 *     파스텔 카드 사이에 무라벨 광고가 끼면 오클릭 → 무효 트래픽 리스크.
 *  4. 색은 전부 테마 토큰. 다크모드에서 흰 판이 통째로 뜨지 않게 한다.
 */

.gy-ad {
    --gy-ad-reserve: 280px;

    display: block;
    width: 100%;
    max-width: 970px;
    margin: 32px auto;
    padding: 10px 12px 12px;
    background: var(--card-bg);
    border: 1px solid var(--card-border);
    border-radius: var(--card-radius);
    box-shadow: var(--card-shadow);
    /* 로드 전 높이 예약 — 실제 유닛 높이에 근접시켜 레이아웃 시프트를 흡수 */
    min-height: var(--gy-ad-reserve);
    transition: background-color 0.3s ease, border-color 0.3s ease, min-height 0.2s ease;
}

/* 라벨 — 작고 낮은 대비. 콘텐츠로 오인되지 않을 정도만. */
.gy-ad__label {
    display: block;
    margin-bottom: 8px;
    font-size: 11px;
    font-weight: 500;
    letter-spacing: 0.08em;
    color: var(--text-muted);
    text-transform: uppercase;
    text-align: left;
    opacity: 0.75;
}

.gy-ad__ins {
    display: block;
    width: 100%;
    min-height: 0;
}

/* 배치별 예약 높이 — AdSense 가 각 유닛 타입에서 흔히 서빙하는 높이 기준 */
.gy-ad--infeed    { --gy-ad-reserve: 300px; }
.gy-ad--inarticle { --gy-ad-reserve: 280px; }
.gy-ad--multiplex { --gy-ad-reserve: 360px; max-width: 1100px; }
.gy-ad--bottom    { --gy-ad-reserve: 120px; }
.gy-ad--top_desktop { --gy-ad-reserve: 105px; } /* 리더보드(90px) + 라벨 */
.gy-ad--top_mobile,
.gy-ad--bottom_mobile { --gy-ad-reserve: 70px; } /* 라벨(19) + 고정 50px 유닛 */

/* 디바이스 전용 유닛 — 한쪽만 보인다. display:none 인 ins 는 ads.js 가 push 하지 않으므로
   과거의 availableWidth=0 회귀(숨은 유닛에 push)가 재발하지 않는다. 뷰포트가 바뀌어 보이게 되면
   IntersectionObserver 가 그때 push 한다. 경계는 모바일 레이아웃 기준(767px)과 동일. */
.gy-ad--desktop-only { display: none; }
.gy-ad--mobile-only  { display: block; text-align: center; }
@media (min-width: 768px) {
    .gy-ad--desktop-only { display: block; }
    .gy-ad--mobile-only  { display: none; }
}

/* 상단 배너 — 첫 화면 콘텐츠를 밀지 않도록 얇게. 가운데 정렬, 카드 장식 최소화 */
.gy-ad--top_desktop,
.gy-ad--top_mobile {
    margin-top: 16px;
    margin-bottom: 32px; /* 아래 콘텐츠(앱 다운로드 버튼 등)와 간격 확보 — 오클릭 방지 */
}
.gy-ad--top_mobile,
.gy-ad--bottom_mobile {
    max-width: 360px;
    padding: 6px 4px 8px;
}
.gy-ad--top_mobile .gy-ad__label,
.gy-ad--bottom_mobile .gy-ad__label { text-align: center; margin-bottom: 4px; }
/* 고정 320x50 은 뷰포트 340px 미만(=컨테이너 여백 포함 시 320px 미만)에서 잘린다 — 숨긴다. */
@media (max-width: 339px) {
    .gy-ad--top_mobile,
    .gy-ad--bottom_mobile { display: none !important; }
}

/* 충전 완료 — 예약 높이를 풀어 실제 크리에이티브 높이를 따른다 */
.gy-ad.is-filled {
    min-height: 0;
}

/* 미충전 / 차단 / 광고 OFF — 흔적 없이 접는다 */
.gy-ad.is-empty {
    display: none !important;
}

/* in-feed 는 도구 그리드 흐름 안에 들어가므로 카드 리듬과 간격을 맞춘다 */
.gy-ad--infeed {
    margin-top: 8px;
    margin-bottom: 40px;
}

/* 하단 배너는 푸터 바로 위 — 푸터와 붙지 않게 */
.gy-ad--bottom {
    margin-bottom: 24px;
}

@media (max-width: 767px) {
    .gy-ad {
        margin: 24px auto;
        padding: 8px 10px 10px;
        border-radius: 16px;
    }
    .gy-ad--infeed    { --gy-ad-reserve: 280px; }
    .gy-ad--inarticle { --gy-ad-reserve: 260px; }
    .gy-ad--multiplex { --gy-ad-reserve: 480px; }
    .gy-ad--bottom    { --gy-ad-reserve: 100px; }
    .gy-ad--top_mobile { margin-top: 12px; margin-bottom: 28px; }
    .gy-ad--bottom_mobile { margin-top: 12px; margin-bottom: 16px; }

    /* 우하단 FAB 스택(약 70px)과 겹침 방지 — 기존 .ads-slot-bottom 규칙 승계 */
    .gy-ad--bottom,
    .gy-ad--bottom_mobile { margin-bottom: 76px; }
}

/* 인쇄 시 광고 제외 */
@media print {
    .gy-ad { display: none !important; }
}

/* --- END public/assets/css/core/ads.css --- */