/* ═══════════════════════════════════════════════════════════
   TỪ ĐƯỜNG HỌ ĐỖ — Design System
   Style: Editorial Heritage (serif + grid, warm lacquer palette)
   ═══════════════════════════════════════════════════════════ */

:root {
    /* ── Màu sắc ───────────────────────────────────────── */
    --c-primary:        #7A1420;   /* đỏ son – màu chủ đạo */
    --c-primary-deep:   #5A0E18;
    --c-primary-soft:   #9B2230;
    --c-on-primary:     #FFF8F0;

    --c-accent:         #A97428;   /* vàng kim – CTA, nhấn */
    --c-accent-bright:  #C9973C;
    --c-accent-soft:    #F2E3C4;
    --c-on-accent:      #2A1608;

    --c-ink:            #23180F;   /* chữ chính */
    --c-ink-soft:       #6B5847;   /* chữ phụ  – 4.9:1 trên nền kem */
    --c-ink-faint:      #8C7A68;

    --c-bg:             #FBF7F0;   /* nền kem */
    --c-surface:        #FFFFFF;
    --c-surface-warm:   #F5EDE0;
    --c-border:         #E4D8C6;
    --c-border-strong:  #CDBBA1;

    --c-dark:           #1C1310;   /* sơn mài */
    --c-dark-soft:      #2C201A;
    --c-on-dark:        #F5EDE0;
    --c-on-dark-soft:   #C3B09B;

    --c-success:        #2F6B3F;
    --c-focus:          #A97428;

    /* ── Chữ ───────────────────────────────────────────── */
    --font-display: 'Noto Serif', Georgia, 'Times New Roman', serif;
    --font-body:    'Be Vietnam Pro', system-ui, -apple-system, 'Segoe UI', sans-serif;

    /* ── Nhịp khoảng cách (4/8) ────────────────────────── */
    --sp-1: 4px;   --sp-2: 8px;   --sp-3: 12px;  --sp-4: 16px;
    --sp-5: 24px;  --sp-6: 32px;  --sp-7: 48px;  --sp-8: 64px;
    --sp-9: 96px;

    --radius-sm: 4px;
    --radius:    8px;
    --radius-lg: 14px;

    --shadow-sm: 0 1px 2px rgba(35, 24, 15, .06), 0 2px 6px rgba(35, 24, 15, .05);
    --shadow:    0 2px 6px rgba(35, 24, 15, .07), 0 10px 28px rgba(35, 24, 15, .07);
    --shadow-lg: 0 8px 20px rgba(35, 24, 15, .10), 0 24px 56px rgba(35, 24, 15, .12);

    --shell:  1200px;
    --header-h: 68px;

    --ease: cubic-bezier(.22, .61, .36, 1);
    --dur:  220ms;

    /* Tầng z-index */
    --z-header: 100;
    --z-lightbox: 1000;
    --z-toast: 1100;
}

/* ═══ Reset ═══════════════════════════════════════════════ */
*, *::before, *::after { box-sizing: border-box; }

html {
    scroll-behavior: smooth;
    scroll-padding-top: calc(var(--header-h) + 16px);
    -webkit-text-size-adjust: 100%;
}

body {
    margin: 0;
    background: var(--c-bg);
    color: var(--c-ink);
    font-family: var(--font-body);
    font-size: 16px;
    line-height: 1.65;
    -webkit-font-smoothing: antialiased;
    overflow-x: hidden;
}

img { max-width: 100%; height: auto; display: block; }
button, input, select { font: inherit; color: inherit; }
button { cursor: pointer; }

h1, h2, h3, h4 {
    font-family: var(--font-display);
    line-height: 1.22;
    margin: 0;
    font-weight: 600;
    letter-spacing: -.01em;
}

p { margin: 0 0 var(--sp-4); }
p:last-child { margin-bottom: 0; }

a { color: var(--c-primary); }

:focus-visible {
    outline: 3px solid var(--c-focus);
    outline-offset: 3px;
    border-radius: var(--radius-sm);
}

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

.skip-link {
    position: fixed; top: -100px; left: var(--sp-4);
    z-index: 200;
    background: var(--c-primary); color: var(--c-on-primary);
    padding: var(--sp-3) var(--sp-5);
    border-radius: var(--radius);
    text-decoration: none; font-weight: 600;
    transition: top var(--dur) var(--ease);
}
.skip-link:focus { top: var(--sp-4); }

.shell {
    width: 100%;
    max-width: var(--shell);
    margin-inline: auto;
    padding-inline: var(--sp-5);
}

.ico { width: 20px; height: 20px; flex: none; }

/* ═══ Nút ═════════════════════════════════════════════════ */
.btn {
    display: inline-flex; align-items: center; justify-content: center;
    gap: var(--sp-2);
    min-height: 44px;
    padding: 0 var(--sp-5);
    border: 1px solid transparent;
    border-radius: var(--radius);
    font-family: var(--font-body);
    font-size: 15px; font-weight: 600;
    text-decoration: none;
    letter-spacing: .01em;
    transition: background-color var(--dur) var(--ease),
                border-color var(--dur) var(--ease),
                color var(--dur) var(--ease),
                box-shadow var(--dur) var(--ease),
                transform 120ms var(--ease);
}
.btn:active { transform: translateY(1px); }

.btn-lg { min-height: 52px; padding: 0 var(--sp-6); font-size: 16px; }
.btn-sm { min-height: 40px; padding: 0 var(--sp-4); font-size: 14px; }
.btn-block { width: 100%; }

.btn-primary {
    background: var(--c-primary);
    color: var(--c-on-primary);
    box-shadow: var(--shadow-sm);
}
.btn-primary:hover { background: var(--c-primary-soft); box-shadow: var(--shadow); }

.btn-gold {
    background: var(--c-accent);
    color: #22150A;
    box-shadow: var(--shadow-sm);
}
.btn-gold:hover { background: var(--c-accent-bright); }

.btn-outline {
    background: transparent;
    color: var(--c-primary);
    border-color: var(--c-border-strong);
}
.btn-outline:hover { background: var(--c-surface-warm); border-color: var(--c-primary); }

.btn-ghost {
    background: rgba(255, 248, 240, .10);
    color: #FFF8F0;
    border-color: rgba(255, 248, 240, .55);
    backdrop-filter: blur(6px);
    -webkit-backdrop-filter: blur(6px);
}
.btn-ghost:hover { background: rgba(255, 248, 240, .20); border-color: #FFF8F0; }

.btn-ghost-light {
    background: transparent;
    color: var(--c-on-dark);
    border-color: rgba(245, 237, 224, .45);
}
.btn-ghost-light:hover { background: rgba(245, 237, 224, .12); border-color: var(--c-on-dark); }

.link-arrow {
    display: inline-flex; align-items: center; gap: var(--sp-2);
    color: var(--c-primary);
    font-weight: 600; text-decoration: none;
    border-bottom: 2px solid transparent;
    padding-bottom: 2px;
    transition: border-color var(--dur) var(--ease), gap var(--dur) var(--ease);
}
.link-arrow:hover { border-bottom-color: var(--c-accent); gap: var(--sp-3); }

/* ═══ Header ══════════════════════════════════════════════ */
.site-header {
    position: fixed; inset: 0 0 auto 0;
    z-index: var(--z-header);
    height: var(--header-h);
    display: flex; align-items: center;
    background: transparent;
    transition: background-color 300ms var(--ease),
                box-shadow 300ms var(--ease),
                border-color 300ms var(--ease);
    border-bottom: 1px solid transparent;
}
.site-header.is-solid {
    background: rgba(251, 247, 240, .94);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border-bottom-color: var(--c-border);
    box-shadow: 0 1px 12px rgba(35, 24, 15, .06);
}

.header-inner {
    display: flex; align-items: center; gap: var(--sp-5);
}

.brand {
    display: flex; align-items: center; gap: var(--sp-3);
    text-decoration: none; color: #FFF8F0;
    margin-right: auto;
    transition: color 300ms var(--ease);
}
.site-header.is-solid .brand { color: var(--c-primary); }

.brand-seal { position: relative; width: 44px; height: 44px; flex: none; }
.brand-seal svg,
.brand-seal img { width: 100%; height: 100%; object-fit: contain; display: block; }
/* Hai bản logo chồng nhau, đổi theo nền header khi cuộn */
.brand-seal img {
    position: absolute; inset: 0;
    transition: opacity 300ms var(--ease);
}
.brand-seal .on-solid { opacity: 0; }
.site-header.is-solid .brand-seal .on-hero { opacity: 0; }
.site-header.is-solid .brand-seal .on-solid { opacity: 1; }

.brand-text { display: flex; flex-direction: column; line-height: 1.2; }
.brand-text strong {
    font-family: var(--font-display);
    font-size: 17px; font-weight: 600; letter-spacing: .01em;
}
.brand-text em {
    font-style: normal; font-size: 11px;
    letter-spacing: .14em; text-transform: uppercase;
    opacity: .75;
}

.header-nav { display: flex; gap: var(--sp-5); }
.header-nav a {
    color: rgba(255, 248, 240, .88);
    text-decoration: none;
    font-size: 15px; font-weight: 500;
    padding: var(--sp-2) 0;
    border-bottom: 2px solid transparent;
    transition: color var(--dur) var(--ease), border-color var(--dur) var(--ease);
}
.header-nav a:hover { color: #FFF8F0; border-bottom-color: var(--c-accent-bright); }
.site-header.is-solid .header-nav a { color: var(--c-ink-soft); }
.site-header.is-solid .header-nav a:hover { color: var(--c-primary); border-bottom-color: var(--c-primary); }

.header-cta { flex: none; }

/* ═══ Hero ════════════════════════════════════════════════ */
.hero {
    position: relative;
    min-height: 100svh;
    display: flex; flex-direction: column;
    justify-content: center;
    padding: calc(var(--header-h) + var(--sp-7)) 0 var(--sp-9);
    isolation: isolate;
    overflow: hidden;
}

.hero-media { position: absolute; inset: 0; z-index: -2; }
.hero-media img {
    width: 100%; height: 100%;
    object-fit: cover; object-position: center 42%;
}

.hero-veil {
    position: absolute; inset: 0; z-index: -1;
    background:
        linear-gradient(180deg,
            rgba(20, 12, 9, .78) 0%,
            rgba(20, 12, 9, .55) 34%,
            rgba(20, 12, 9, .68) 70%,
            rgba(20, 12, 9, .92) 100%),
        radial-gradient(120% 80% at 50% 40%, rgba(90, 14, 24, .30), transparent 70%);
}

.hero-inner { text-align: center; color: #FFF8F0; }

.hero-eyebrow {
    display: flex; align-items: center; justify-content: center;
    gap: var(--sp-3);
    margin: 0 0 var(--sp-4);
    font-size: 13px; font-weight: 500;
    letter-spacing: .3em; text-transform: uppercase;
    color: var(--c-accent-bright);
}
.hero-eyebrow .rule {
    width: 44px; height: 1px;
    background: linear-gradient(90deg, transparent, var(--c-accent-bright));
}
.hero-eyebrow .rule:last-child { background: linear-gradient(90deg, var(--c-accent-bright), transparent); }

.hero-title {
    font-size: clamp(3rem, 10vw, 6rem);
    font-weight: 700;
    line-height: 1.02;
    letter-spacing: -.02em;
    margin: 0 0 var(--sp-5);
    text-shadow: 0 2px 24px rgba(0, 0, 0, .45);
}
.hero-title .accent {
    color: var(--c-accent-bright);
    display: inline-block;
}

.hero-lead {
    max-width: 34ch;
    margin: 0 auto var(--sp-7);
    font-size: clamp(1rem, 1.6vw, 1.175rem);
    line-height: 1.75;
    color: rgba(255, 248, 240, .92);
    text-shadow: 0 1px 12px rgba(0, 0, 0, .4);
}

.hero-actions {
    display: flex; flex-wrap: wrap;
    justify-content: center; gap: var(--sp-3);
    margin-bottom: var(--sp-8);
}

.hero-stats {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: var(--sp-2);
    max-width: 660px;
    margin: 0 auto;
    padding: var(--sp-5) var(--sp-3);
    border-top: 1px solid rgba(201, 151, 60, .35);
    border-bottom: 1px solid rgba(201, 151, 60, .35);
}
.hero-stat { text-align: center; }
.hero-stat dt {
    font-size: 11.5px; letter-spacing: .16em; text-transform: uppercase;
    color: rgba(255, 248, 240, .70);
    margin-bottom: var(--sp-2);
}
.hero-stat dd {
    margin: 0;
    font-family: var(--font-display);
    font-size: clamp(1.05rem, 2.6vw, 1.6rem);
    font-weight: 700;
    color: var(--c-accent-bright);
    font-variant-numeric: tabular-nums;
}

.hero-scroll {
    position: absolute; bottom: var(--sp-5); left: 50%;
    transform: translateX(-50%);
    width: 44px; height: 60px;
    display: flex; align-items: flex-end; justify-content: center;
}
.hero-scroll-line {
    width: 1px; height: 40px;
    background: linear-gradient(180deg, transparent, var(--c-accent-bright));
    animation: scrollHint 2.2s var(--ease) infinite;
}
@keyframes scrollHint {
    0%, 100% { opacity: .3; transform: scaleY(.6); transform-origin: bottom; }
    50%      { opacity: 1;  transform: scaleY(1);   transform-origin: bottom; }
}

/* ═══ Tiêu đề mục ═════════════════════════════════════════ */
.section-eyebrow {
    font-size: 12px; font-weight: 600;
    letter-spacing: .22em; text-transform: uppercase;
    color: var(--c-accent);
    margin: 0 0 var(--sp-3);
}
.section-eyebrow.light { color: var(--c-accent-bright); }

.section-title {
    font-size: clamp(1.75rem, 3.6vw, 2.6rem);
    margin: 0 0 var(--sp-5);
}

.section-head {
    margin: var(--sp-8) 0 var(--sp-5);
    padding-bottom: var(--sp-3);
    border-bottom: 1px solid var(--c-border);
}
.section-head h3 {
    font-size: clamp(1.3rem, 2.4vw, 1.7rem);
    margin-bottom: var(--sp-1);
}
.section-head p { color: var(--c-ink-soft); font-size: 15px; margin: 0; }

.lead-para {
    max-width: 65ch;
    font-size: 1.075rem;
    line-height: 1.8;
    color: var(--c-ink-soft);
    margin-bottom: var(--sp-7);
}

/* ═══ Giới thiệu ══════════════════════════════════════════ */
.intro { padding: var(--sp-9) 0; background: var(--c-bg); }
.intro-inner {
    display: grid;
    grid-template-columns: minmax(0, 1.05fr) minmax(0, .95fr);
    gap: var(--sp-8);
    align-items: start;
}
.intro-copy p { color: var(--c-ink-soft); max-width: 56ch; }

.intro-pillars {
    list-style: none; margin: 0; padding: 0;
    display: grid; gap: var(--sp-3);
}
.intro-pillars li {
    display: flex; gap: var(--sp-4);
    padding: var(--sp-5);
    background: var(--c-surface);
    border: 1px solid var(--c-border);
    border-left: 3px solid var(--c-accent);
    border-radius: var(--radius);
    box-shadow: var(--shadow-sm);
    transition: transform var(--dur) var(--ease), box-shadow var(--dur) var(--ease);
}
.intro-pillars li:hover { transform: translateY(-2px); box-shadow: var(--shadow); }

.pillar-ico {
    width: 44px; height: 44px; flex: none;
    display: grid; place-items: center;
    background: var(--c-surface-warm);
    border-radius: 50%;
    color: var(--c-primary);
}
.pillar-ico svg { width: 22px; height: 22px; }
.intro-pillars h3 { font-size: 1.075rem; margin-bottom: var(--sp-1); }
.intro-pillars p { font-size: 14.5px; color: var(--c-ink-soft); line-height: 1.6; margin: 0; }

/* ═══ Khu nội dung + Tabs ═════════════════════════════════ */
.content {
    padding: var(--sp-9) 0;
    background:
        linear-gradient(180deg, var(--c-surface-warm), var(--c-bg) 340px);
}
.content-head { text-align: center; margin-bottom: var(--sp-6); }
.content-head .section-title { margin-bottom: 0; }

.tabs-bar {
    display: flex; gap: var(--sp-1);
    margin-bottom: var(--sp-7);
    padding: var(--sp-1);
    background: var(--c-surface);
    border: 1px solid var(--c-border);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-sm);
    overflow-x: auto;
    scrollbar-width: none;
}
.tabs-bar::-webkit-scrollbar { display: none; }

.tab {
    flex: 1 1 0;
    display: inline-flex; align-items: center; justify-content: center;
    gap: var(--sp-2);
    min-height: 52px;
    padding: 0 var(--sp-4);
    background: transparent;
    border: none;
    border-radius: var(--radius);
    color: var(--c-ink-soft);
    font-size: 15px; font-weight: 600;
    white-space: nowrap;
    transition: background-color var(--dur) var(--ease), color var(--dur) var(--ease);
}
.tab:hover { background: var(--c-surface-warm); color: var(--c-primary); }
.tab[aria-selected="true"] {
    background: var(--c-primary);
    color: var(--c-on-primary);
    box-shadow: var(--shadow-sm);
}
.tab[aria-selected="true"]:hover { background: var(--c-primary); color: var(--c-on-primary); }

.panel { animation: panelIn 280ms var(--ease); }
.panel[hidden] { display: none; }
@keyframes panelIn {
    from { opacity: 0; transform: translateY(10px); }
    to   { opacity: 1; transform: none; }
}

/* ═══ Panel: Lịch sử ══════════════════════════════════════ */
.history-layout {
    display: grid;
    grid-template-columns: minmax(0, 1.35fr) minmax(0, .8fr);
    gap: var(--sp-8);
    align-items: start;
}

.timeline {
    list-style: none;
    margin: 0; padding: 0 0 0 var(--sp-6);
    position: relative;
}
.timeline::before {
    content: ''; position: absolute;
    left: 5px; top: 8px; bottom: 8px;
    width: 1px;
    background: linear-gradient(180deg, var(--c-accent), var(--c-border));
}
.timeline-item { position: relative; padding-bottom: var(--sp-7); }
.timeline-item:last-child { padding-bottom: 0; }

.timeline-dot {
    position: absolute; left: calc(-1 * var(--sp-6) + 1px); top: 7px;
    width: 11px; height: 11px;
    background: var(--c-bg);
    border: 2px solid var(--c-primary);
    border-radius: 50%;
}
.timeline-era {
    font-size: 12px; font-weight: 600;
    letter-spacing: .16em; text-transform: uppercase;
    color: var(--c-accent);
    margin: 0 0 var(--sp-1);
}
.timeline-item h3 { font-size: 1.3rem; margin-bottom: var(--sp-2); }
.timeline-item p { color: var(--c-ink-soft); max-width: 60ch; }

.history-aside { display: grid; gap: var(--sp-5); position: sticky; top: calc(var(--header-h) + var(--sp-5)); }

.figure-card {
    margin: 0;
    background: var(--c-surface);
    border: 1px solid var(--c-border);
    border-radius: var(--radius-lg);
    overflow: hidden;
    box-shadow: var(--shadow);
}
.figure-card img { aspect-ratio: 4 / 3; object-fit: cover; width: 100%; }
.figure-card figcaption {
    padding: var(--sp-3) var(--sp-4);
    font-size: 13.5px; color: var(--c-ink-soft);
    border-top: 1px solid var(--c-border);
}

.note-card {
    background: var(--c-surface);
    border: 1px solid var(--c-border);
    border-top: 3px solid var(--c-primary);
    border-radius: var(--radius-lg);
    padding: var(--sp-5);
    box-shadow: var(--shadow-sm);
}
.note-card h3 { font-size: 1.15rem; margin-bottom: var(--sp-4); }

.check-list { list-style: none; margin: 0 0 var(--sp-5); padding: 0; display: grid; gap: var(--sp-3); }
.check-list li {
    position: relative;
    padding-left: var(--sp-6);
    font-size: 14.5px; line-height: 1.55;
    color: var(--c-ink-soft);
}
.check-list li::before {
    content: ''; position: absolute; left: 0; top: 6px;
    width: 14px; height: 8px;
    border-left: 2px solid var(--c-accent);
    border-bottom: 2px solid var(--c-accent);
    transform: rotate(-45deg);
}

/* ═══ Panel: Hoạt động ════════════════════════════════════ */
.event-list {
    list-style: none; margin: 0 0 var(--sp-8); padding: 0;
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: var(--sp-5);
}
.event-card {
    display: flex; flex-direction: column;
    background: var(--c-surface);
    border: 1px solid var(--c-border);
    border-radius: var(--radius-lg);
    overflow: hidden;
    box-shadow: var(--shadow-sm);
    transition: transform var(--dur) var(--ease), box-shadow var(--dur) var(--ease);
}
.event-card:hover { transform: translateY(-3px); box-shadow: var(--shadow); }

.event-media { overflow: hidden; background: var(--c-surface-warm); }
.event-media img {
    width: 100%; aspect-ratio: 4 / 3; object-fit: cover;
    transition: transform 400ms var(--ease);
}
.event-card:hover .event-media img { transform: scale(1.04); }

.event-body { padding: var(--sp-5); }
.event-tag {
    display: inline-block;
    margin: 0 0 var(--sp-2);
    padding: 3px var(--sp-3);
    background: var(--c-surface-warm);
    border-radius: 999px;
    font-size: 11.5px; font-weight: 600;
    letter-spacing: .1em; text-transform: uppercase;
    color: var(--c-primary);
}
.event-body h3 { font-size: 1.15rem; margin-bottom: var(--sp-2); }
.event-body p { font-size: 14.5px; color: var(--c-ink-soft); line-height: 1.65; margin: 0; }

.gallery-head { margin-bottom: var(--sp-5); }
.gallery-head h3 { font-size: 1.4rem; margin-bottom: var(--sp-1); }
.gallery-head p { color: var(--c-ink-soft); font-size: 14.5px; margin: 0; }

.gallery-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
    gap: var(--sp-3);
}
.gallery-item {
    position: relative;
    padding: 0; border: 1px solid var(--c-border);
    border-radius: var(--radius);
    overflow: hidden;
    background: var(--c-surface-warm);
    aspect-ratio: 4 / 3;
    transition: box-shadow var(--dur) var(--ease), border-color var(--dur) var(--ease);
}
.gallery-item img {
    width: 100%; height: 100%; object-fit: cover;
    transition: transform 400ms var(--ease);
}
.gallery-item:hover { border-color: var(--c-accent); box-shadow: var(--shadow); }
.gallery-item:hover img { transform: scale(1.05); }

.gallery-more { display: flex; justify-content: center; margin-top: var(--sp-5); }

/* ═══ Panel: Quyên góp ════════════════════════════════════ */
.progress-card {
    background: linear-gradient(135deg, var(--c-dark), var(--c-dark-soft) 60%, #3A2418);
    color: var(--c-on-dark);
    border-radius: var(--radius-lg);
    padding: var(--sp-6);
    margin-bottom: var(--sp-6);
    box-shadow: var(--shadow-lg);
    position: relative; overflow: hidden;
}
.progress-card::after {
    content: ''; position: absolute; inset: 0;
    background: radial-gradient(90% 120% at 100% 0%, rgba(201, 151, 60, .18), transparent 60%);
    pointer-events: none;
}
.progress-head {
    display: flex; flex-wrap: wrap;
    justify-content: space-between; align-items: flex-end;
    gap: var(--sp-5);
    margin-bottom: var(--sp-5);
    position: relative;
}
.progress-amount {
    font-family: var(--font-display);
    font-size: clamp(2rem, 5.5vw, 3rem);
    font-weight: 700; line-height: 1.1;
    color: var(--c-accent-bright);
    font-variant-numeric: tabular-nums;
    margin: 0 0 var(--sp-1);
}
.progress-sub { margin: 0; font-size: 14.5px; color: var(--c-on-dark-soft); }
.progress-sub strong { color: var(--c-on-dark); font-variant-numeric: tabular-nums; }

.progress-figures { display: flex; gap: var(--sp-6); }
.progress-figures > div { text-align: right; }
.fig-value {
    display: block;
    font-family: var(--font-display);
    font-size: 1.35rem; font-weight: 600;
    color: var(--c-on-dark);
    font-variant-numeric: tabular-nums;
}
.fig-label {
    display: block; margin-top: 2px;
    font-size: 11.5px; letter-spacing: .14em; text-transform: uppercase;
    color: var(--c-on-dark-soft);
}

.progress-track {
    position: relative;
    height: 10px;
    background: rgba(245, 237, 224, .14);
    border-radius: 999px;
    overflow: hidden;
    margin-bottom: var(--sp-3);
}
.progress-fill {
    display: block; height: 100%; width: 0;
    background: linear-gradient(90deg, var(--c-accent), var(--c-accent-bright));
    border-radius: 999px;
    transition: width 900ms var(--ease);
}
.progress-percent { margin: 0; font-size: 14px; color: var(--c-on-dark-soft); position: relative; }
.progress-percent strong { color: var(--c-accent-bright); font-variant-numeric: tabular-nums; }

.donate-layout {
    display: grid;
    grid-template-columns: minmax(0, .85fr) minmax(0, 1.15fr);
    gap: var(--sp-5);
    align-items: start;
}

.qr-card, .bank-card {
    background: var(--c-surface);
    border: 1px solid var(--c-border);
    border-radius: var(--radius-lg);
    padding: var(--sp-6);
    box-shadow: var(--shadow-sm);
}
.qr-card { text-align: center; }
.qr-card h3, .bank-card h3 { font-size: 1.2rem; margin-bottom: var(--sp-5); }

.qr-frame {
    margin: 0 auto var(--sp-4);
    max-width: 300px;
    border: 1px solid var(--c-border);
    border-radius: var(--radius);
    overflow: hidden;
    background: var(--c-surface-warm);
}
.qr-frame img { width: 100%; }
.qr-hint { font-size: 14px; color: var(--c-ink-soft); margin: 0; }

.bank-list { margin: 0 0 var(--sp-5); }
.bank-row {
    display: grid;
    grid-template-columns: 130px minmax(0, 1fr);
    gap: var(--sp-4);
    padding: var(--sp-4) 0;
    border-bottom: 1px solid var(--c-border);
    align-items: center;
}
.bank-row:last-child { border-bottom: none; }
.bank-row dt {
    font-size: 12.5px; font-weight: 600;
    letter-spacing: .1em; text-transform: uppercase;
    color: var(--c-ink-faint);
}
.bank-row dd {
    margin: 0;
    display: flex; flex-wrap: wrap; align-items: center; gap: var(--sp-3);
    font-size: 16px; font-weight: 600;
}
.bank-row dd .muted { font-weight: 400; color: var(--c-ink-soft); font-size: 14px; }
.bank-row dd em { font-style: italic; font-weight: 400; color: var(--c-ink-soft); }
.copy-value { font-variant-numeric: tabular-nums; letter-spacing: .02em; }

.copy-btn {
    display: inline-flex; align-items: center; gap: 6px;
    min-height: 36px; padding: 0 var(--sp-3);
    background: var(--c-surface-warm);
    border: 1px solid var(--c-border);
    border-radius: var(--radius-sm);
    color: var(--c-primary);
    font-size: 13px; font-weight: 600;
    transition: background-color var(--dur) var(--ease), border-color var(--dur) var(--ease);
}
.copy-btn:hover { background: var(--c-accent-soft); border-color: var(--c-accent); }
.copy-btn .ico { width: 15px; height: 15px; }

.bank-note {
    display: flex; gap: var(--sp-3);
    padding: var(--sp-4);
    background: var(--c-accent-soft);
    border-radius: var(--radius);
    color: #4A3612;
}
.bank-note .ico { color: var(--c-accent); margin-top: 2px; }
.bank-note p { font-size: 14px; line-height: 1.6; margin: 0; }

/* Bảng vàng công đức */
.podium {
    list-style: none; margin: 0 0 var(--sp-5); padding: 0;
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
    gap: var(--sp-4);
}
.podium-item {
    position: relative;
    background: var(--c-surface);
    border: 1px solid var(--c-border);
    border-radius: var(--radius-lg);
    padding: var(--sp-6) var(--sp-5) var(--sp-5);
    text-align: center;
    box-shadow: var(--shadow-sm);
    transition: transform var(--dur) var(--ease), box-shadow var(--dur) var(--ease);
}
.podium-item:hover { transform: translateY(-3px); box-shadow: var(--shadow); }

.podium-rank {
    position: absolute; top: -14px; left: 50%;
    transform: translateX(-50%);
    width: 34px; height: 34px;
    display: grid; place-items: center;
    background: var(--c-surface-warm);
    border: 1px solid var(--c-border-strong);
    border-radius: 50%;
    font-family: var(--font-display);
    font-size: 15px; font-weight: 700;
    color: var(--c-ink-soft);
}
.podium-item.is-top .podium-rank {
    background: linear-gradient(135deg, var(--c-accent-bright), var(--c-accent));
    border-color: var(--c-accent);
    color: #FFF8F0;
}
.podium-item.is-top { border-color: var(--c-accent); border-top-width: 3px; }

.podium-name {
    font-family: var(--font-display);
    font-size: 1.1rem; font-weight: 600;
    margin: 0 0 var(--sp-2);
}
.podium-amount {
    font-size: 1.05rem; font-weight: 700;
    color: var(--c-primary);
    font-variant-numeric: tabular-nums;
    margin: 0 0 var(--sp-1);
}
.podium-note { font-size: 13px; color: var(--c-ink-faint); margin: 0; }

/* Thanh công cụ bảng */
.table-toolbar {
    display: flex; flex-wrap: wrap; gap: var(--sp-3);
    margin-bottom: var(--sp-4);
}
.search-field {
    position: relative;
    flex: 1 1 260px;
    display: flex; align-items: center;
}
.search-field .ico {
    position: absolute; left: var(--sp-4);
    color: var(--c-ink-faint); pointer-events: none;
}
.search-field input {
    width: 100%;
    min-height: 48px;
    padding: 0 var(--sp-4) 0 var(--sp-8);
    background: var(--c-surface);
    border: 1px solid var(--c-border);
    border-radius: var(--radius);
    font-size: 16px;
    transition: border-color var(--dur) var(--ease), box-shadow var(--dur) var(--ease);
}
.search-field input:focus {
    outline: none;
    border-color: var(--c-accent);
    box-shadow: 0 0 0 3px rgba(169, 116, 40, .18);
}

.sort-field select {
    min-height: 48px;
    padding: 0 var(--sp-5) 0 var(--sp-4);
    background: var(--c-surface);
    border: 1px solid var(--c-border);
    border-radius: var(--radius);
    font-size: 15px;
    cursor: pointer;
}
.sort-field select:focus { outline: none; border-color: var(--c-accent); box-shadow: 0 0 0 3px rgba(169, 116, 40, .18); }

.table-wrap {
    background: var(--c-surface);
    border: 1px solid var(--c-border);
    border-radius: var(--radius-lg);
    overflow: hidden;
    box-shadow: var(--shadow-sm);
}
.donation-table { width: 100%; border-collapse: collapse; }
.donation-table thead th {
    padding: var(--sp-4);
    background: var(--c-surface-warm);
    border-bottom: 1px solid var(--c-border);
    font-family: var(--font-body);
    font-size: 12.5px; font-weight: 600;
    letter-spacing: .1em; text-transform: uppercase;
    color: var(--c-ink-soft);
    text-align: left;
}
.donation-table td {
    padding: var(--sp-4);
    border-bottom: 1px solid var(--c-border);
    font-size: 15px;
    vertical-align: top;
}
.donation-table tbody tr:last-child td { border-bottom: none; }
.donation-table tbody tr { transition: background-color 150ms var(--ease); }
.donation-table tbody tr:hover { background: var(--c-surface-warm); }

.col-index { width: 56px; }
.donation-table td.col-index { color: var(--c-ink-faint); font-variant-numeric: tabular-nums; }
.col-amount { text-align: right; white-space: nowrap; }
.donation-table td.col-amount {
    text-align: right;
    font-weight: 700; color: var(--c-primary);
    font-variant-numeric: tabular-nums;
}
.col-date { white-space: nowrap; }
.donation-table td.col-date { color: var(--c-ink-soft); font-variant-numeric: tabular-nums; }
.donation-table td.col-note { color: var(--c-ink-soft); font-size: 14px; }
.donor-name { font-weight: 600; }

.table-empty {
    padding: var(--sp-7) var(--sp-4);
    text-align: center;
    color: var(--c-ink-soft);
    margin: 0;
}

.table-foot {
    display: flex; flex-wrap: wrap;
    justify-content: space-between; align-items: center;
    gap: var(--sp-4);
    margin-top: var(--sp-4);
}
.table-foot p { margin: 0; font-size: 14px; color: var(--c-ink-soft); }

/* ═══ CTA cuối ════════════════════════════════════════════ */
.closing {
    padding: var(--sp-9) 0;
    background:
        linear-gradient(135deg, var(--c-primary-deep), var(--c-primary) 55%, #3E0C13);
    color: var(--c-on-dark);
    text-align: center;
}
.closing-inner { max-width: 720px; margin-inline: auto; }
.closing h2 {
    font-size: clamp(1.7rem, 4vw, 2.6rem);
    color: #FFF8F0;
    margin-bottom: var(--sp-4);
}
.closing-lead {
    font-size: 1.05rem;
    line-height: 1.8;
    color: rgba(255, 248, 240, .86);
    margin-bottom: var(--sp-7);
}
.closing-actions { display: flex; flex-wrap: wrap; justify-content: center; gap: var(--sp-3); }

/* ═══ Footer ══════════════════════════════════════════════ */
.site-footer {
    background: var(--c-dark);
    color: var(--c-on-dark-soft);
    padding: var(--sp-8) 0 var(--sp-5);
}
.footer-inner {
    display: flex; flex-wrap: wrap;
    justify-content: space-between; gap: var(--sp-6);
    padding-bottom: var(--sp-6);
    border-bottom: 1px solid rgba(245, 237, 224, .12);
}
.footer-brand strong {
    display: block;
    font-family: var(--font-display);
    font-size: 1.25rem; font-weight: 600;
    color: var(--c-on-dark);
    margin-bottom: var(--sp-1);
}
.footer-brand p { margin: 0; font-size: 13.5px; letter-spacing: .04em; }

.footer-contact { display: flex; flex-wrap: wrap; gap: var(--sp-7); margin: 0; }
.footer-contact dt {
    font-size: 11.5px; font-weight: 600;
    letter-spacing: .16em; text-transform: uppercase;
    color: var(--c-accent-bright);
    margin-bottom: var(--sp-2);
}
.footer-contact dd { margin: 0; font-size: 14.5px; color: var(--c-on-dark); }
.footer-contact a { color: var(--c-on-dark); text-decoration: none; border-bottom: 1px solid rgba(245, 237, 224, .3); }
.footer-contact a:hover { border-bottom-color: var(--c-accent-bright); }

.footer-bottom {
    display: flex; flex-wrap: wrap;
    justify-content: space-between; gap: var(--sp-3);
    padding-top: var(--sp-5);
    font-size: 13px;
}
.footer-bottom p { margin: 0; }

/* ═══ Lightbox ════════════════════════════════════════════ */
.lightbox {
    position: fixed; inset: 0;
    z-index: var(--z-lightbox);
    display: grid; place-items: center;
    padding: var(--sp-6);
    background: rgba(16, 10, 8, .93);
    backdrop-filter: blur(4px);
    -webkit-backdrop-filter: blur(4px);
    animation: fadeIn 200ms var(--ease);
}
.lightbox[hidden] { display: none; }
@keyframes fadeIn { from { opacity: 0; } to { opacity: 1; } }

.lightbox-img {
    max-width: min(1100px, 92vw);
    max-height: 86vh;
    object-fit: contain;
    border-radius: var(--radius);
    box-shadow: 0 20px 60px rgba(0, 0, 0, .6);
}

.lightbox-close, .lightbox-nav {
    position: absolute;
    width: 48px; height: 48px;
    display: grid; place-items: center;
    background: rgba(245, 237, 224, .12);
    border: 1px solid rgba(245, 237, 224, .28);
    border-radius: 50%;
    color: #F5EDE0;
    transition: background-color var(--dur) var(--ease);
}
.lightbox-close:hover, .lightbox-nav:hover { background: rgba(245, 237, 224, .25); }
.lightbox-close svg, .lightbox-nav svg { width: 22px; height: 22px; }
.lightbox-close { top: var(--sp-5); right: var(--sp-5); }
.lightbox-nav.prev { left: var(--sp-5); }
.lightbox-nav.next { right: var(--sp-5); }

/* ═══ Toast ═══════════════════════════════════════════════ */
.toast {
    position: fixed;
    bottom: var(--sp-6); left: 50%;
    transform: translateX(-50%);
    z-index: var(--z-toast);
    display: flex; align-items: center; gap: var(--sp-2);
    padding: var(--sp-3) var(--sp-5);
    background: var(--c-dark);
    color: var(--c-on-dark);
    border-radius: 999px;
    font-size: 14.5px; font-weight: 500;
    box-shadow: var(--shadow-lg);
    animation: toastIn 260ms var(--ease);
}
.toast[hidden] { display: none; }
@keyframes toastIn {
    from { opacity: 0; transform: translate(-50%, 14px); }
    to   { opacity: 1; transform: translate(-50%, 0); }
}

/* ═══ Hiệu ứng reveal khi cuộn ════════════════════════════ */
.reveal { opacity: 0; transform: translateY(18px); }
.reveal.is-visible {
    opacity: 1; transform: none;
    transition: opacity 500ms var(--ease), transform 500ms var(--ease);
}

/* ═══ Responsive ══════════════════════════════════════════ */
@media (max-width: 1024px) {
    .intro-inner,
    .history-layout,
    .donate-layout { grid-template-columns: 1fr; gap: var(--sp-7); }
    .history-aside { position: static; }
    .header-nav { display: none; }
}

@media (max-width: 768px) {
    :root { --sp-9: 64px; --sp-8: 48px; }

    .hero { min-height: 92svh; }
    .hero-stats { grid-template-columns: 1fr; gap: var(--sp-4); padding: var(--sp-5) 0; }
    .hero-stat { display: flex; align-items: baseline; justify-content: space-between; }
    .hero-stat dt { margin-bottom: 0; text-align: left; }
    .hero-actions .btn { width: 100%; }

    .tab span { font-size: 13.5px; }
    .tab { padding: 0 var(--sp-3); }

    .progress-head { flex-direction: column; align-items: flex-start; }
    .progress-figures { width: 100%; justify-content: space-between; gap: var(--sp-4); }
    .progress-figures > div { text-align: left; }

    .bank-row { grid-template-columns: 1fr; gap: var(--sp-1); }

    /* Bảng chuyển sang dạng thẻ trên di động */
    .donation-table thead { display: none; }
    .donation-table, .donation-table tbody, .donation-table tr, .donation-table td { display: block; width: 100%; }
    .donation-table tr {
        padding: var(--sp-4);
        border-bottom: 1px solid var(--c-border);
        position: relative;
    }
    .donation-table td { border: none; padding: 2px 0; }
    .donation-table td.col-index { position: absolute; top: var(--sp-4); right: var(--sp-4); font-size: 12px; }
    .donation-table td.col-amount { text-align: left; font-size: 1.05rem; margin-top: var(--sp-1); }
    .donation-table td.col-date::before { content: 'Ngày '; color: var(--c-ink-faint); }

    .closing-actions .btn { width: 100%; }
    .footer-contact { flex-direction: column; gap: var(--sp-5); }

    .lightbox-nav.prev { left: var(--sp-2); }
    .lightbox-nav.next { right: var(--sp-2); }
}

@media (max-width: 420px) {
    .shell { padding-inline: var(--sp-4); }
    .brand-text em { display: none; }
    .tab span { display: none; }
    .tab { flex: 1; min-width: 0; }
    .tab .ico { width: 22px; height: 22px; }
}

/* ═══ Giảm chuyển động ════════════════════════════════════ */
@media (prefers-reduced-motion: reduce) {
    html { scroll-behavior: auto; }
    *, *::before, *::after {
        animation-duration: .01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: .01ms !important;
    }
    .reveal { opacity: 1; transform: none; }
    .hero-scroll-line { animation: none; opacity: .7; }
}

/* ═══ In ══════════════════════════════════════════════════ */
@media print {
    .site-header, .hero-scroll, .closing-actions, .lightbox, .toast,
    .tabs-bar, .table-toolbar, .table-foot { display: none !important; }
    .panel[hidden] { display: block !important; }
    body { background: #fff; }
}