/* =====================================================
   DPSG TALKSHOW — "Confident Editorial"
   Palette chuẩn hoá theo DESIGN.md (Azure Horizon — all blue)
   ===================================================== */

:root {
    /* Surfaces / neutrals (Azure Horizon) */
    --canvas: #f9f9ff;
    /* surface */
    --paper: #ffffff;
    /* surface-container-lowest */
    --tint: #e7eeff;
    /* surface-container */
    --ink: #111c2d;
    /* on-surface */
    --ink-soft: #434655;
    /* on-surface-variant */
    --ink-faint: #737686;
    /* outline */

    /* Blues — single family, two weights for hierarchy */
    --blue: #004ac6;
    /* primary */
    --blue-bright: #2563eb;
    /* primary-container (accent / hover) */
    --blue-soft: #64a8fe;
    /* secondary-container */
    --blue-tint: #dbe1ff;
    /* primary-fixed (light pill) */
    --blue-deep: #00184d;
    /* deepest navy (dark blocks) */
    --secondary: #0060ac;

    --line: #e3e6f1;
    --line-strong: #c3c6d7;
    /* outline-variant */

    --font-display: 'Bricolage Grotesque', Georgia, serif;
    --font-body: 'Plus Jakarta Sans', -apple-system, BlinkMacSystemFont, sans-serif;

    --gutter: clamp(1.25rem, 4vw, 3.5rem);
    --maxw: 1360px;
    --nav-h: 82px;
}

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

html {
    scroll-behavior: smooth;
    -webkit-font-smoothing: antialiased;
}

/* ---- Custom scrollbar ---- */

::-webkit-scrollbar {
    width: 5px;
}

::-webkit-scrollbar-track {
    background: #f0f7ff;
}

::-webkit-scrollbar-thumb {
    background: #b8d9f8;
    border-radius: 3px;
}

/* Firefox fallback */
@supports not selector(::-webkit-scrollbar) {
    html {
        scrollbar-width: thin;
        scrollbar-color: #b8d9f8 #f0f7ff;
    }
}

body {
    font-family: var(--font-body);
    background: var(--canvas);
    color: var(--ink);
    line-height: 1.6;
    overflow-x: hidden;
}

a {
    text-decoration: none;
    color: inherit;
}

button {
    border: none;
    cursor: pointer;
    font-family: inherit;
    font-size: inherit;
}

img {
    display: block;
    max-width: 100%;
}

::selection {
    background: var(--blue-tint);
    color: var(--blue);
}

.shell {
    max-width: var(--maxw);
    margin: 0 auto;
    padding-left: var(--gutter);
    padding-right: var(--gutter);
}

/* ---- Reusable editorial bits ---- */

.kicker {
    font-size: 0.72rem;
    font-weight: 700;
    letter-spacing: 0.22em;
    text-transform: uppercase;
    color: var(--blue);
    display: inline-flex;
    align-items: center;
    gap: 0.65rem;
}

.kicker::before {
    content: "";
    width: 1.75rem;
    height: 2px;
    background: var(--blue-bright);
    display: inline-block;
}

.index-num {
    font-family: var(--font-display);
    font-size: 0.95rem;
    font-weight: 700;
    color: var(--blue-bright);
    letter-spacing: 0.05em;
}

h2.section-title {
    font-family: var(--font-display);
    font-weight: 700;
    font-size: clamp(2rem, 5.5vw, 3.6rem);
    line-height: 1.02;
    letter-spacing: -0.02em;
    color: var(--ink);
}

.lead {
    font-size: clamp(1rem, 1.4vw, 1.18rem);
    color: var(--ink-soft);
    line-height: 1.7;
    max-width: 46ch;
}

/* ---- Buttons (DESIGN.md: solid primary fill / ghost) ---- */

.btn {
    display: inline-flex;
    align-items: center;
    gap: 0.55rem;
    padding: 0.95rem 1.8rem;
    border-radius: 999px;
    font-weight: 700;
    font-size: 0.95rem;
    letter-spacing: 0.01em;
    transition: transform 0.35s cubic-bezier(.2, .8, .2, 1), box-shadow 0.35s, background 0.3s, color 0.3s, border-color 0.3s;
}

.btn-primary {
    background: var(--blue);
    color: #fff;
    box-shadow: 0 12px 30px -12px rgba(0, 74, 198, 0.6);
}

.btn-primary:hover {
    background: var(--blue-bright);
    transform: translateY(-3px);
    box-shadow: 0 18px 40px -12px rgba(0, 74, 198, 0.6);
}

.btn-ghost {
    background: transparent;
    color: var(--blue);
    border: 1.5px solid var(--blue);
}

.btn-ghost:hover {
    background: var(--blue);
    color: #fff;
    transform: translateY(-3px);
}

/* =====================================================
   NAV
   ===================================================== */

.nav {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 100;
    background: rgba(249, 249, 255, 0.82);
    backdrop-filter: blur(14px);
    border-bottom: 1px solid var(--line);
    transition: background 0.4s, border-color 0.4s, box-shadow 0.4s;
}

/* Transparent state when hero is in view (Azure Horizon light glassmorphism) */
.nav--top {
    background: transparent;
    backdrop-filter: none;
    border-bottom-color: transparent;
    box-shadow: none;
}

.nav--top .nav-links a {
    color: var(--ink-soft);
}

.nav--top .nav-links a:hover {
    color: var(--blue-bright);
}

.nav--top .nav-cta {
    background: var(--blue);
    color: #fff;
    box-shadow: 0 4px 15px rgba(0, 74, 198, 0.18);
    border: 1.5px solid transparent;
}

.nav--top .nav-cta:hover {
    background: var(--blue-bright);
    box-shadow: 0 8px 24px rgba(0, 74, 198, 0.3);
}

/* Subtle shadow when scrolled */
.nav:not(.nav--top) {
    box-shadow: 0 1px 12px rgba(0, 0, 0, 0.06);
}



.nav .shell {
    height: var(--nav-h);
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 1rem;
    max-width: 100%;
    margin: 0;
    padding-left: max(var(--gutter), calc((100vw - var(--maxw)) / 2 - 80px));
    padding-right: max(var(--gutter), calc((100vw - var(--maxw)) / 2 - 80px));
}

.nav-brand {
    display: flex;
    align-items: center;
    gap: 0.7rem;
}

.nav-brand img {
    height: 56px;
}

.nav-links {
    display: flex;
    align-items: center;
    gap: 2.2rem;
}

.nav-links a {
    font-size: 0.9rem;
    font-weight: 600;
    color: var(--ink-soft);
    position: relative;
    transition: color 0.25s;
}

.nav-links a::after {
    content: "";
    position: absolute;
    left: 0;
    bottom: -6px;
    width: 0;
    height: 2px;
    background: var(--blue-bright);
    transition: width 0.3s cubic-bezier(.2, .8, .2, 1);
}

.nav-links a:hover {
    color: var(--ink);
}

.nav-links a:hover::after {
    width: 100%;
}

.nav-cta {
    padding: 0.62rem 1.4rem;
    font-size: 0.88rem;
}

@media (max-width: 860px) {
    .nav-links {
        display: none;
    }

    .nav-brand img {
        height: 46px;
    }
}

/* =====================================================
   HERO — split, photo bleeds right, full height
   ===================================================== */

.hero {
    position: relative;
    min-height: 100svh;
    display: flex;
    align-items: center;
    overflow: hidden;
    background:
        radial-gradient(115% 120% at 88% 8%, rgba(100, 168, 254, 0.45), transparent 52%),
        radial-gradient(90% 100% at 2% 100%, rgba(37, 99, 235, 0.22), transparent 58%),
        linear-gradient(135deg, #dce6ff 0%, #e9eeff 38%, var(--canvas) 100%);
    padding: calc(var(--nav-h) + clamp(1rem, 3vw, 2rem)) 0 clamp(2rem, 5vw, 3rem);
}

/* Photo bleeding off the right + bottom, soft left fade into gradient */
.hero-photo {
    position: absolute;
    top: 0;
    right: 0;
    bottom: 0;
    width: 56%;
    z-index: 1;
    -webkit-mask-image: linear-gradient(to right, transparent 0%, #000 30%);
    mask-image: linear-gradient(to right, transparent 0%, #000 30%);
}

.hero-photo img {
    width: 100%;
    height: 112%;
    object-fit: cover;
    object-position: 84% center;
    transform: translateY(-145px);
}

.hero-photo::after {
    /* gentle tonal blend so the montage harmonises with the blue gradient */
    content: "";
    position: absolute;
    inset: 0;
    background: linear-gradient(120deg, rgba(0, 74, 198, 0.18), transparent 45%);
    mix-blend-mode: multiply;
}

.hero-shell {
    position: relative;
    z-index: 3;
    width: 100%;
    max-width: 100%;
    margin-left: 0;
    margin-right: auto;
    padding-left: max(var(--gutter), calc((100vw - var(--maxw)) / 2 - 80px));
}

.hero-text {
    max-width: 44rem;
    position: relative;
    z-index: 5;
}

.hero-top {
    display: flex;
    align-items: center;
    gap: 1rem;
    flex-wrap: wrap;
    margin-bottom: clamp(1.4rem, 3vw, 2rem);
}

.hero-text .kicker {
    font-size: 0.82rem;
}

.hero-edition {
    font-size: 0.82rem;
    font-weight: 700;
    letter-spacing: 0.2em;
    text-transform: uppercase;
    color: var(--ink-faint);
    padding-left: 1rem;
    border-left: 1px solid var(--line-strong);
}

.hero-headline {
    font-family: var(--font-display);
    font-weight: 800;
    font-size: clamp(3rem, 6.5vw, 6.2rem);
    line-height: 0.96;
    letter-spacing: -0.03em;
    color: var(--ink);
}

.hero-headline .line {
    display: block;
    overflow: hidden;
}

.hero-headline .line>span,
.hero-headline .line>.outline {
    display: block;
}

.hero-headline .mark-word {
    position: relative;
    color: var(--blue);
    display: inline-block;
}

.hero-headline .mark-word::after {
    content: "";
    position: absolute;
    left: -2px;
    right: -2px;
    bottom: 0.08em;
    height: 0.30em;
    background: var(--blue-tint);
    z-index: -1;
    transform: scaleX(0);
    transform-origin: left;
    transition: transform 0.7s cubic-bezier(.2, .8, .2, 1);
}

.hero-headline .mark-word.is-drawn::after {
    transform: scaleX(1);
}

.hero-headline .outline {
    -webkit-text-stroke: 2px var(--blue);
    color: transparent;
}

.hero-sub {
    margin-top: clamp(1.3rem, 3vw, 1.8rem);
    font-size: clamp(1.1rem, 1.4vw, 1.28rem);
    color: var(--ink-soft);
    line-height: 1.7;
    max-width: 42ch;
}

.hero-cta-row {
    display: flex;
    gap: 0.9rem;
    flex-wrap: wrap;
    align-items: center;
    margin-top: clamp(1.6rem, 4vw, 2.4rem);
}

.hero-cta-row .btn {
    padding: 1.05rem 2.2rem;
    font-size: 1rem;
}

.hero-meta {
    margin-top: clamp(1.8rem, 4vw, 2.6rem);
    display: flex;
    width: 100%;
    max-width: 620px;
    border: 1px solid var(--line-strong);
    border-radius: 14px;
    overflow: hidden;
    background: rgba(255, 255, 255, 0.55);
    backdrop-filter: blur(8px);
}

.hero-meta .cell {
    flex: 1;
    padding: 1rem 1.5rem;
    border-right: 1px solid var(--line);
}

.hero-meta .cell:last-child {
    border-right: none;
}

.hero-meta .cell .k {
    font-size: 0.72rem;
    font-weight: 700;
    letter-spacing: 0.14em;
    text-transform: uppercase;
    color: var(--ink-faint);
    margin-bottom: 0.35rem;
}

.hero-meta .cell .v {
    font-family: var(--font-display);
    font-weight: 700;
    font-size: 1.15rem;
    color: var(--ink);
}

@media (max-width: 880px) {
    .hero {
        min-height: 100svh;
        align-items: flex-start;
    }

    .hero-photo {
        position: absolute;
        top: auto;
        bottom: 0;
        left: 0;
        right: 0;
        width: 100%;
        height: 42%;
        -webkit-mask-image: linear-gradient(to bottom, transparent 0%, #000 42%);
        mask-image: linear-gradient(to bottom, transparent 0%, #000 42%);
    }

    .hero-photo img {
        object-position: center 35%;
    }

    .hero-shell {
        padding-top: clamp(2rem, 8vw, 3.5rem);
    }

    .hero-text {
        max-width: 100%;
    }
}

@media (max-width: 480px) {
    .hero-meta {
        display: grid;
        grid-template-columns: 1fr 1fr;
    }

    .hero-meta .cell:nth-child(2) {
        border-right: none;
    }

    .hero-meta .cell:nth-child(3) {
        border-top: 1px solid var(--line);
    }
}

/* =====================================================
   SECTION SCAFFOLD
   ===================================================== */

section {
    position: relative;
}

.section-pad {
    padding: clamp(4rem, 10vw, 8rem) 0;
}

.section-head {
    display: grid;
    grid-template-columns: auto 1fr;
    gap: 1.2rem 2rem;
    align-items: start;
    margin-bottom: clamp(2.5rem, 6vw, 4rem);
}

.section-head .lead {
    grid-column: 2;
    margin-top: 0.5rem;
}

@media (max-width: 680px) {
    .section-head {
        grid-template-columns: 1fr;
    }

    .section-head .lead {
        grid-column: 1;
    }
}

/* =====================================================
   STATS
   ===================================================== */

.stats {
    background: var(--paper);
    border-top: 1px solid var(--line);
    border-bottom: 1px solid var(--line);
}

.stats-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
}

@media (max-width: 760px) {
    .stats-grid {
        grid-template-columns: 1fr;
    }
}

.stat {
    padding: clamp(2rem, 4vw, 3rem) clamp(1.5rem, 3vw, 2.5rem);
    border-right: 1px solid var(--line);
    position: relative;
}

.stat:last-child {
    border-right: none;
}

@media (max-width: 760px) {
    .stat {
        border-right: none;
        border-bottom: 1px solid var(--line);
    }

    .stat:last-child {
        border-bottom: none;
    }
}

.stat .num {
    font-family: var(--font-display);
    font-weight: 800;
    font-size: clamp(3rem, 7vw, 5rem);
    line-height: 1;
    letter-spacing: -0.03em;
    color: var(--blue);
}

.stat .num .suffix {
    color: var(--blue-bright);
}

.stat .desc {
    margin-top: 1rem;
    color: var(--ink-soft);
    font-size: 1rem;
    max-width: 26ch;
}

/* =====================================================
   VALUE (numbered list)
   ===================================================== */

.value-list {
    display: grid;
    gap: 0;
}

.value-item {
    display: grid;
    grid-template-columns: 5rem 1fr;
    gap: clamp(1rem, 3vw, 3rem);
    padding: clamp(1.8rem, 4vw, 2.8rem) 0;
    border-top: 1px solid var(--line);
    align-items: start;
    transition: padding-left 0.4s cubic-bezier(.2, .8, .2, 1);
}

.value-item:last-child {
    border-bottom: 1px solid var(--line);
}

.value-item:hover {
    padding-left: 1.2rem;
}

.value-item .vi-num {
    font-family: var(--font-display);
    font-weight: 700;
    font-size: 1.4rem;
    color: var(--blue-bright);
}

.value-item .vi-title {
    font-family: var(--font-display);
    font-weight: 700;
    font-size: clamp(1.4rem, 3vw, 2.1rem);
    line-height: 1.1;
    letter-spacing: -0.01em;
    margin-bottom: 0.6rem;
}

.value-item .vi-body {
    color: var(--ink-soft);
    max-width: 60ch;
    font-size: 1.02rem;
}

@media (max-width: 560px) {
    .value-item {
        grid-template-columns: 1fr;
        gap: 0.5rem;
    }
}

/* =====================================================
   TIMELINE
   ===================================================== */

.program-grid {
    display: grid;
    grid-template-columns: 1.2fr 1fr;
    gap: clamp(2rem, 5vw, 5rem);
    align-items: start;
}

.program-media {
    position: sticky;
    top: calc(var(--nav-h) + 3rem);
}

.image-frame {
    background: var(--paper);
    padding: 1.2rem 1.2rem 2.2rem 1.2rem;
    border-radius: 20px;
    box-shadow:
        0 20px 40px -15px rgba(0, 74, 198, 0.08),
        0 1px 3px rgba(0, 0, 0, 0.03);
    border: 1px solid var(--line);
    transform: rotate(1.5deg);
    transition: transform 0.6s cubic-bezier(.2, .8, .2, 1), box-shadow 0.6s;
}

.image-frame:hover {
    transform: rotate(0deg) scale(1.02);
    box-shadow:
        0 30px 60px -15px rgba(0, 74, 198, 0.12),
        0 1px 4px rgba(0, 0, 0, 0.04);
}

.image-frame img {
    width: 100%;
    aspect-ratio: 4/3;
    object-fit: cover;
    border-radius: 12px;
    margin-bottom: 1.2rem;
}

.frame-caption {
    font-family: var(--font-display);
    font-size: 1.05rem;
    font-weight: 700;
    color: var(--blue);
    text-align: center;
    letter-spacing: -0.01em;
}

@media (max-width: 1024px) {
    .program-grid {
        grid-template-columns: 1fr;
        gap: 3.5rem;
    }

    .program-media {
        position: static;
        max-width: 620px;
        margin: 0 auto;
    }

    .image-frame {
        transform: none;
    }

    .image-frame:hover {
        transform: scale(1.01);
    }
}

.timeline-wrap {
    position: relative;
    max-width: 760px;
}

.timeline-track {
    position: absolute;
    left: 7.5rem;
    top: 0.4rem;
    bottom: 0.4rem;
    width: 2px;
    background: var(--line);
}

.timeline-track .progress {
    position: absolute;
    left: 0;
    top: 0;
    right: 0;
    height: 100%;
    background: linear-gradient(var(--blue), var(--blue-bright));
    transform-origin: top;
    transform: scaleY(0);
}

@media (max-width: 620px) {
    .timeline-track {
        left: 0.4rem;
    }
}

.tl-item {
    position: relative;
    display: grid;
    grid-template-columns: 6rem 1fr;
    gap: 2.5rem;
    padding: 0 0 2.6rem 0;
}

.tl-item:last-child {
    padding-bottom: 0;
}

.tl-time {
    font-family: var(--font-display);
    font-weight: 700;
    font-size: 1.1rem;
    color: var(--blue);
    text-align: right;
    padding-top: 0.1rem;
}

.tl-dot {
    position: absolute;
    left: 7.5rem;
    top: 0.45rem;
    width: 15px;
    height: 15px;
    background: var(--paper);
    border: 3px solid var(--blue);
    border-radius: 50%;
    transform: translateX(-50%) scale(0);
    z-index: 2;
}

.tl-content {
    padding-left: 1.5rem;
}

.tl-content h3 {
    font-family: var(--font-display);
    font-weight: 700;
    font-size: clamp(1.15rem, 2.5vw, 1.5rem);
    line-height: 1.2;
    margin-bottom: 0.35rem;
}

.tl-content p {
    color: var(--ink-soft);
    font-size: 0.98rem;
}

@media (max-width: 620px) {
    .tl-item {
        grid-template-columns: 1fr;
        gap: 0.3rem;
        padding-left: 2rem;
    }

    .tl-time {
        text-align: left;
    }

    .tl-dot {
        left: 0.4rem;
    }

    .tl-content {
        padding-left: 0;
    }
}

/* =====================================================
   SPEAKERS
   ===================================================== */

.speakers {
    background: var(--paper);
    border-top: 1px solid var(--line);
}

.speakers-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 1px;
    background: var(--line);
    border: 1px solid var(--line);
}

@media (max-width: 880px) {
    .speakers-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 540px) {
    .speakers-grid {
        grid-template-columns: 1fr;
    }
}

.sp-card {
    background: var(--paper);
    padding: clamp(1.6rem, 3vw, 2.2rem);
    position: relative;
    transition: background 0.4s;
    min-height: 280px;
    display: flex;
    flex-direction: column;
}

.sp-card:hover {
    background: #fafbff;
}

.sp-card .sp-idx {
    font-family: var(--font-display);
    font-size: 0.85rem;
    font-weight: 700;
    color: var(--ink-faint);
    margin-bottom: auto;
}

.sp-avatar {
    width: 64px;
    height: 64px;
    border-radius: 50%;
    background: var(--tint);
    border: 1px dashed var(--line-strong);
    display: flex;
    align-items: center;
    justify-content: center;
    font-family: var(--font-display);
    font-weight: 700;
    font-size: 1.4rem;
    color: var(--blue);
    margin-bottom: 1.1rem;
    transition: transform 0.4s cubic-bezier(.2, .8, .2, 1), background 0.4s, color 0.4s;
}

.sp-card:hover .sp-avatar {
    transform: scale(1.08) rotate(-4deg);
    background: var(--blue-tint);
    color: var(--blue-bright);
}

.sp-name {
    font-family: var(--font-display);
    font-weight: 700;
    font-size: 1.3rem;
    color: var(--ink);
}

.sp-role {
    color: var(--blue);
    font-weight: 600;
    font-size: 0.92rem;
    margin-top: 0.25rem;
}

.sp-org {
    color: var(--ink-soft);
    font-size: 0.92rem;
    margin-top: 0.1rem;
}

.sp-badge {
    margin-top: 1rem;
    align-self: flex-start;
    font-size: 0.66rem;
    font-weight: 700;
    letter-spacing: 0.12em;
    text-transform: uppercase;
    color: var(--blue);
    background: var(--blue-tint);
    padding: 0.35rem 0.75rem;
    border-radius: 999px;
}

/* =====================================================
   AUDIENCE
   ===================================================== */

.aud-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 1.2rem;
}

@media (max-width: 820px) {
    .aud-grid {
        grid-template-columns: 1fr;
    }
}

.aud-card {
    background: var(--paper);
    border: 1px solid var(--line);
    border-radius: 18px;
    padding: clamp(1.8rem, 3vw, 2.4rem);
    position: relative;
    overflow: hidden;
    transition: transform 0.4s cubic-bezier(.2, .8, .2, 1), border-color 0.3s;
}

.aud-card:hover {
    transform: translateY(-6px);
    border-color: var(--blue);
}

.aud-card .aud-num {
    font-family: var(--font-display);
    font-weight: 800;
    font-size: 3.5rem;
    line-height: 1;
    color: var(--blue-tint);
    transition: color 0.3s;
}

.aud-card:hover .aud-num {
    color: var(--blue-soft);
}

.aud-card h3 {
    font-family: var(--font-display);
    font-weight: 700;
    font-size: 1.45rem;
    margin: 0.8rem 0 0.5rem;
}

.aud-card p {
    color: var(--ink-soft);
    font-size: 0.98rem;
}

/* =====================================================
   ABOUT — deep blue full-bleed
   ===================================================== */

.about {
    background: var(--blue-deep);
    color: #eaf0ff;
    position: relative;
    overflow: hidden;
}

.about::before {
    content: "";
    position: absolute;
    width: 520px;
    height: 520px;
    border-radius: 50%;
    background: radial-gradient(circle, rgba(100, 168, 254, 0.30), transparent 70%);
    top: -180px;
    right: -120px;
    filter: blur(30px);
}

.about .shell {
    position: relative;
    z-index: 2;
}

.about-grid {
    display: grid;
    grid-template-columns: 1.3fr 1fr;
    gap: clamp(2rem, 5vw, 4rem);
    align-items: center;
}

@media (max-width: 820px) {
    .about-grid {
        grid-template-columns: 1fr;
    }
}

.about .kicker {
    color: #aebfff;
}

.about .kicker::before {
    background: var(--blue-soft);
}

.about h2 {
    font-family: var(--font-display);
    font-weight: 800;
    font-size: clamp(2rem, 5vw, 3.4rem);
    line-height: 1.04;
    letter-spacing: -0.02em;
    margin: 1.2rem 0 1.5rem;
    color: #fff;
}

.about p {
    color: #c5d0f5;
    font-size: 1.08rem;
    line-height: 1.75;
    margin-bottom: 1.2rem;
    max-width: 52ch;
}

.about-logo-card {
    background: rgba(255, 255, 255);
    border: 1px solid rgba(255, 255, 255, 0.12);
    border-radius: 20px;
    padding: 0.8rem;
    display: flex;
    align-items: center;
    justify-content: center;
    backdrop-filter: blur(8px);
}

.about-logo-card img {
    max-width: 100%;
    border-radius: 14px;
}

/* =====================================================
   CTA
   ===================================================== */

.cta {
    text-align: center;
    padding: clamp(4rem, 9vw, 7rem) 0;
}

.cta h2 {
    font-family: var(--font-display);
    font-weight: 800;
    font-size: clamp(2.2rem, 6vw, 4.4rem);
    line-height: 1.02;
    letter-spacing: -0.03em;
    max-width: 16ch;
    margin: 0 auto 1.2rem;
}

.cta h2 em {
    color: var(--blue);
    font-style: normal;
}

.cta .sub {
    color: var(--ink-soft);
    font-size: 1.1rem;
    margin-bottom: 2.2rem;
}

.cta .sub b {
    color: var(--blue);
}

/* =====================================================
   FOOTER
   ===================================================== */

.footer {
    background: var(--ink);
    color: #c7ccdd;
}

.footer .shell {
    padding-top: 4rem;
    padding-bottom: 2rem;
}

.footer-grid {
    display: grid;
    grid-template-columns: 1.4fr 1fr 1fr;
    gap: 2.5rem;
    padding-bottom: 3rem;
}

@media (max-width: 720px) {
    .footer-grid {
        grid-template-columns: 1fr;
        gap: 2rem;
    }
}

.footer-brand img {
    height: 56px;
    margin-bottom: 1rem;
    background: #fff;
    padding: 8px 14px;
    border-radius: 10px;
}

.footer-brand p {
    color: #a8afc8;
    max-width: 32ch;
    font-size: 0.95rem;
}

.footer-col h4 {
    font-size: 0.72rem;
    font-weight: 700;
    letter-spacing: 0.16em;
    text-transform: uppercase;
    color: #9da4c0;
    margin-bottom: 1rem;
}

.footer-col a,
.footer-col p {
    color: #e2e6f3;
    font-size: 0.95rem;
    display: block;
    margin-bottom: 0.6rem;
    transition: color 0.25s;
}

.footer-col a:hover {
    color: var(--blue-soft);
}

.footer-bottom {
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    padding-top: 1.6rem;
    text-align: center;
    font-size: 0.85rem;
    color: #8b92ad;
}


/* =====================================================
   FAQ
   ===================================================== */
.faq-list {
    max-width: 820px;
    margin: 0 auto;
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.faq-item {
    background: var(--paper);
    border: 1px solid var(--line);
    border-radius: 16px;
    overflow: hidden;
    transition: all 0.3s;
}

.faq-item:hover {
    border-color: var(--blue-tint);
    box-shadow: 0 10px 20px -8px rgba(0, 74, 198, 0.04);
}

.faq-trigger {
    width: 100%;
    text-align: left;
    background: transparent;
    border: none;
    padding: 1.4rem 1.6rem;
    font-family: var(--font-display);
    font-size: 1.1rem;
    font-weight: 700;
    color: var(--ink);
    cursor: pointer;
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 1.5rem;
    transition: color 0.3s;
}

.faq-trigger:hover {
    color: var(--blue);
}

.faq-icon {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 32px;
    height: 32px;
    border-radius: 50%;
    background: var(--blue-tint);
    color: var(--blue);
    flex-shrink: 0;
    transition: transform 0.4s, background 0.4s, color 0.4s;
}

.faq-trigger[aria-expanded="true"] .faq-icon {
    transform: rotate(45deg);
    background: var(--blue);
    color: #ffffff;
}

.faq-answer {
    height: 0;
    overflow: hidden;
    transition: height 0.35s cubic-bezier(0.25, 1, 0.5, 1);
}

.faq-answer-inner {
    padding: 0 1.6rem 1.6rem 1.6rem;
    color: var(--ink-soft);
    line-height: 1.65;
    font-size: 1rem;
}

.faq-answer-inner p {
    margin: 0;
}

.faq-answer-inner strong {
    color: var(--blue);
    font-weight: 600;
}

/* =====================================================
   FLOATING ACTIONS
   ===================================================== */
.float-btn {
    position: fixed;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    background: #ffffff;
    color: var(--ink-soft);
    box-shadow: 
        0 10px 25px -5px rgba(0, 74, 198, 0.15),
        0 1px 3px rgba(0, 0, 0, 0.05);
    border: 1px solid var(--line);
    cursor: pointer;
    transition: all 0.4s cubic-bezier(0.175, 0.885, 0.32, 1.1);
    z-index: 90;
    text-decoration: none;
}

.float-btn--chat {
    right: 2rem;
    bottom: 2rem;
    width: 52px;
    height: 52px;
    background: linear-gradient(135deg, #006aff, #00e5ff);
    color: #ffffff;
    border: none;
    animation: float-pulse 2.5s infinite;
}

.float-btn--top {
    right: 6.2rem;
    bottom: 2.25rem;
    width: 44px;
    height: 44px;
    opacity: 0;
    transform: translateY(20px) scale(0.8);
    pointer-events: none;
    background: rgba(255, 255, 255, 0.9);
    backdrop-filter: blur(8px);
}

.float-btn--top.is-visible {
    opacity: 1;
    transform: translateY(0) scale(1);
    pointer-events: auto;
}

.float-btn:hover {
    transform: translateY(-4px) scale(1.06);
    box-shadow: 
        0 15px 30px -5px rgba(0, 74, 198, 0.25),
        0 1px 5px rgba(0, 0, 0, 0.05);
}

.float-btn--chat:hover {
    background: linear-gradient(135deg, #0052cc, #00c4e6);
    animation-play-state: paused;
}

.float-tooltip {
    position: absolute;
    bottom: calc(100% + 12px);
    left: 50%;
    transform: translateX(-50%) translateY(10px);
    background: var(--ink);
    color: #ffffff;
    padding: 6px 12px;
    border-radius: 8px;
    font-size: 0.82rem;
    font-weight: 600;
    white-space: nowrap;
    opacity: 0;
    pointer-events: none;
    transition: all 0.3s cubic-bezier(0.175, 0.885, 0.32, 1);
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
}

.float-btn--chat:hover .float-tooltip {
    opacity: 1;
    transform: translateX(-50%) translateY(0);
}

@keyframes float-pulse {
    0% {
        box-shadow: 0 0 0 0 rgba(0, 106, 255, 0.4), 0 10px 25px -5px rgba(0, 74, 198, 0.15);
    }
    70% {
        box-shadow: 0 0 0 12px rgba(0, 106, 255, 0), 0 10px 25px -5px rgba(0, 74, 198, 0.15);
    }
    100% {
        box-shadow: 0 0 0 0 rgba(0, 106, 255, 0), 0 10px 25px -5px rgba(0, 74, 198, 0.15);
    }
}

@media (max-width: 620px) {
    .float-btn--chat {
        right: 1.25rem;
        bottom: 1.25rem;
        width: 48px;
        height: 48px;
    }
    .float-btn--top {
        right: 5rem;
        bottom: 1.5rem;
        width: 40px;
        height: 40px;
    }
    .float-tooltip {
        display: none;
    }
}

/* =====================================================
   ANIMATION HELPERS
   ===================================================== */

.gsap-ready .reveal {
    opacity: 0;
    transform: translateY(28px);
}

@media (prefers-reduced-motion: reduce) {
    * {
        animation: none !important;
        transition: none !important;
    }

    .gsap-ready .reveal {
        opacity: 1 !important;
        transform: none !important;
    }
}