/* ============================================
   Jeff Feng — AI Speaker Profile
   Premium dark theme, matching OpenClaw deck style
   ============================================ */

:root {
    --bg-primary: #070a12;
    --bg-secondary: #0c1220;
    --bg-card: rgba(16, 22, 36, 0.78);
    --bg-card-hover: rgba(20, 28, 48, 0.88);
    --text-primary: #f5f7fb;
    --text-secondary: #b6bfd4;
    --text-muted: #7f89a3;
    --accent: #ff8a3d;
    --accent-2: #7c9cff;
    --accent-3: #6cf0b2;
    --accent-glow: rgba(255, 138, 61, 0.18);
    --accent-2-glow: rgba(124, 156, 255, 0.15);
    --border: rgba(255, 255, 255, 0.08);
    --border-strong: rgba(255, 255, 255, 0.14);
    --font-sans: 'Inter', 'Noto Sans SC', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    --font-mono: 'JetBrains Mono', monospace;
    --radius: 18px;
    --radius-lg: 28px;
    --radius-sm: 12px;
    --shadow-xl: 0 30px 80px rgba(0, 0, 0, 0.42);
    --shadow-lg: 0 18px 40px rgba(0, 0, 0, 0.28);
}

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

html {
    font-size: 16px;
    height: 100%;
    overflow: hidden;
}

body {
    min-height: 100%;
    font-family: var(--font-sans);
    background:
        radial-gradient(circle at 20% 10%, rgba(124, 156, 255, 0.10), transparent 40%),
        radial-gradient(circle at 80% 90%, rgba(255, 138, 61, 0.08), transparent 40%),
        var(--bg-primary);
    color: var(--text-primary);
    line-height: 1.6;
    overflow: hidden;
    -webkit-font-smoothing: antialiased;
}

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

/* ====== DECK CHROME ====== */
.progress-bar {
    position: fixed;
    top: 0; left: 0; right: 0;
    height: 3px;
    z-index: 200;
    background: rgba(255,255,255,0.06);
}

.progress-fill {
    height: 100%;
    width: 0;
    background: linear-gradient(90deg, var(--accent), var(--accent-2));
    transition: width 0.5s ease;
}

.slide-counter {
    position: fixed;
    bottom: 24px; right: 28px;
    font-size: 0.82rem;
    font-family: var(--font-mono);
    color: var(--text-muted);
    z-index: 200;
    padding: 6px 14px;
    background: rgba(7, 10, 18, 0.6);
    backdrop-filter: blur(8px);
    border: 1px solid var(--border);
    border-radius: 999px;
}

.slide-counter .current { color: var(--accent); font-weight: 700; }

.dot-nav {
    position: fixed;
    right: 18px;
    top: 50%;
    transform: translateY(-50%);
    display: flex;
    flex-direction: column;
    gap: 8px;
    z-index: 200;
}

.dot {
    width: 10px; height: 10px;
    border-radius: 50%;
    border: 2px solid var(--text-muted);
    background: transparent;
    cursor: pointer;
    transition: all 0.3s;
    padding: 0;
}

.dot.active {
    border-color: var(--accent);
    background: var(--accent);
    box-shadow: 0 0 8px var(--accent-glow);
}

.dot:hover { border-color: var(--text-primary); }

/* ====== SLIDES ====== */
.presentation {
    position: relative;
    height: 100vh;
    overflow: hidden;
}

.slide {
    position: absolute;
    inset: 0;
    height: 100vh;
    display: flex;
    flex-direction: column;
    justify-content: center;
    transform: translateY(100%);
    transition: transform 0.7s cubic-bezier(0.65, 0, 0.35, 1);
    overflow: hidden;
    will-change: transform;
}

.slide.active {
    transform: translateY(0);
}

.slide-scrollable {
    justify-content: flex-start;
}

.slide-inner {
    overflow-y: auto;
    max-height: 100vh;
    padding-top: 80px;
    padding-bottom: 40px;
}

.slide-inner::-webkit-scrollbar { width: 4px; }
.slide-inner::-webkit-scrollbar-thumb { background: rgba(255,255,255,0.16); border-radius: 999px; }

/* ====== HEADER ====== */
.header {
    position: fixed;
    top: 0; left: 0; right: 0;
    z-index: 100;
    padding: 16px 28px;
    background: rgba(7, 10, 18, 0.72);
    backdrop-filter: blur(18px);
    border-bottom: 1px solid var(--border);
}

.header-inner {
    max-width: 1200px;
    margin: 0 auto;
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.header-right {
    display: flex;
    align-items: center;
    gap: 16px;
}

.header-link {
    font-size: 0.85rem;
    color: var(--text-secondary);
    text-decoration: none;
    font-weight: 500;
    transition: color 0.2s;
}

.header-link:hover { color: var(--text-primary); }

.logo {
    font-size: 1.1rem;
    font-weight: 800;
    letter-spacing: -0.02em;
}

.header-tag {
    font-size: 0.82rem;
    color: var(--text-muted);
    font-weight: 500;
    padding: 4px 14px;
    border: 1px solid var(--border);
    border-radius: 999px;
    background: rgba(255, 255, 255, 0.03);
}

/* ====== HERO (inside slide) ====== */
.slide-hero {
    position: absolute;
    padding: 0 28px;
    overflow: hidden;
}

.hero-bg {
    position: absolute;
    inset: 0;
    overflow: hidden;
    z-index: 0;
}

.glow-orb {
    position: absolute;
    border-radius: 50%;
    filter: blur(80px);
    opacity: 0.5;
    animation: float 12s ease-in-out infinite;
}

.orb-1 {
    width: 400px; height: 400px;
    background: radial-gradient(circle, rgba(124, 156, 255, 0.25), transparent 70%);
    top: -10%; left: -5%;
}

.orb-2 {
    width: 350px; height: 350px;
    background: radial-gradient(circle, rgba(255, 138, 61, 0.20), transparent 70%);
    bottom: -5%; right: -5%;
    animation-delay: -4s;
}

.orb-3 {
    width: 250px; height: 250px;
    background: radial-gradient(circle, rgba(108, 240, 178, 0.12), transparent 70%);
    top: 40%; right: 25%;
    animation-delay: -8s;
}

@keyframes float {
    0%, 100% { transform: translateY(0) scale(1); }
    50% { transform: translateY(-20px) scale(1.05); }
}

.grid-lines {
    position: absolute;
    inset: 0;
    background-image:
        linear-gradient(rgba(124, 156, 255, 0.03) 1px, transparent 1px),
        linear-gradient(90deg, rgba(124, 156, 255, 0.03) 1px, transparent 1px);
    background-size: 60px 60px;
}

.hero-content {
    position: relative;
    z-index: 1;
    max-width: 1200px;
    margin: 0 auto;
    display: flex;
    align-items: center;
    gap: 72px;
    width: 100%;
}

.hero-left {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 24px;
    flex-shrink: 0;
}

.avatar-ring {
    width: 200px; height: 200px;
    border-radius: 50%;
    padding: 4px;
    background: conic-gradient(from 0deg, var(--accent), var(--accent-2), var(--accent-3), var(--accent));
    animation: ring-spin 8s linear infinite;
    box-shadow: 0 0 40px var(--accent-glow), 0 0 80px var(--accent-2-glow);
}

@keyframes ring-spin {
    to { background: conic-gradient(from 360deg, var(--accent), var(--accent-2), var(--accent-3), var(--accent)); }
}

.avatar-photo {
    width: 100%; height: 100%;
    border-radius: 50%;
    object-fit: cover;
    border: 3px solid var(--bg-primary);
}

.social-links {
    display: flex;
    gap: 10px;
}

.social-btn {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 8px 16px;
    border-radius: 999px;
    font-size: 0.82rem;
    font-weight: 600;
    color: var(--text-secondary);
    background: rgba(255, 255, 255, 0.04);
    border: 1px solid var(--border);
    transition: all 0.25s;
}

.social-btn:hover {
    background: rgba(255, 255, 255, 0.08);
    color: var(--text-primary);
    border-color: var(--border-strong);
}

.hero-right {
    flex: 1;
}

.hero-badge {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 6px 16px;
    background: rgba(255, 138, 61, 0.10);
    border: 1px solid rgba(255, 138, 61, 0.24);
    border-radius: 999px;
    font-size: 0.85rem;
    font-weight: 600;
    color: var(--accent);
    margin-bottom: 20px;
}

.badge-dot {
    width: 8px; height: 8px;
    border-radius: 50%;
    background: var(--accent);
    animation: pulse-dot 2s ease-in-out infinite;
}

@keyframes pulse-dot {
    0%, 100% { opacity: 1; transform: scale(1); }
    50% { opacity: 0.5; transform: scale(0.85); }
}

.hero-name {
    font-size: 3.5rem;
    font-weight: 900;
    letter-spacing: -0.03em;
    line-height: 1.15;
    margin-bottom: 6px;
}

.hero-tagline {
    font-size: 1.25rem;
    color: var(--text-secondary);
    line-height: 1.7;
    margin-bottom: 36px;
    max-width: 540px;
}

.highlight {
    color: var(--accent);
    font-weight: 600;
}

.hero-stats {
    display: flex;
    gap: 36px;
}

.stat {
    display: flex;
    flex-direction: column;
    gap: 4px;
}

.stat-value {
    font-size: 2rem;
    font-weight: 800;
    background: linear-gradient(135deg, var(--accent), var(--accent-2));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    line-height: 1.1;
}

.stat-label {
    font-size: 0.78rem;
    color: var(--text-muted);
    font-weight: 500;
}

/* ====== SECTIONS (inside slides) ====== */
.slide > .container {
    padding: 40px 28px;
    max-width: 1200px;
    margin: 0 auto;
    width: 100%;
}

.slide:nth-child(odd) {
    background: linear-gradient(180deg, rgba(10, 15, 26, 0.4), rgba(7, 10, 18, 0.6));
}

.container {
    max-width: 1200px;
    margin: 0 auto;
}

.section-header {
    text-align: center;
    margin-bottom: 56px;
}

.section-badge {
    display: inline-block;
    padding: 5px 14px;
    background: rgba(124, 156, 255, 0.10);
    border: 1px solid rgba(124, 156, 255, 0.22);
    border-radius: 999px;
    font-size: 0.82rem;
    font-weight: 600;
    color: var(--accent-2);
    margin-bottom: 16px;
}

.section-header h2 {
    font-size: 2.2rem;
    font-weight: 800;
    letter-spacing: -0.02em;
}

.accent {
    color: var(--accent);
}

/* ====== ABOUT GRID ====== */
.about-grid {
    display: grid;
    grid-template-columns: 1fr 1fr 1fr;
    gap: 24px;
}

.about-card {
    padding: 36px 28px;
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    transition: all 0.3s;
}

.about-card:hover {
    background: var(--bg-card-hover);
    border-color: var(--border-strong);
    transform: translateY(-4px);
    box-shadow: var(--shadow-lg);
}

.about-card-main {
    border-color: rgba(255, 138, 61, 0.18);
    background: linear-gradient(135deg, rgba(255, 138, 61, 0.06), var(--bg-card));
}

.about-icon {
    font-size: 2rem;
    margin-bottom: 16px;
}

.about-card h3 {
    font-size: 1.15rem;
    font-weight: 700;
    margin-bottom: 10px;
}

.about-card p {
    font-size: 0.92rem;
    color: var(--text-secondary);
    line-height: 1.7;
}

/* ====== COMPACT TIMELINE ====== */
.timeline-compact {
    display: flex;
    flex-direction: column;
    gap: 12px;
    margin-bottom: 48px;
}

.tl-row {
    display: flex;
    align-items: flex-start;
    gap: 18px;
    padding: 20px 24px;
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
    transition: all 0.25s;
}

.tl-row:hover {
    background: var(--bg-card-hover);
    border-color: var(--border-strong);
}

.tl-logo {
    flex-shrink: 0;
    width: 44px;
    height: 44px;
    border-radius: 10px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: rgba(255, 255, 255, 0.04);
    border: 1px solid var(--border);
    margin-top: 2px;
}

.tl-body {
    flex: 1;
    min-width: 0;
}

.tl-header {
    display: flex;
    align-items: baseline;
    justify-content: space-between;
    gap: 12px;
    flex-wrap: wrap;
}

.tl-header h3 {
    font-size: 1rem;
    font-weight: 700;
    line-height: 1.3;
}

.tl-date {
    font-size: 0.74rem;
    font-family: var(--font-mono);
    color: var(--text-muted);
    font-weight: 500;
    white-space: nowrap;
    flex-shrink: 0;
}

.tl-org {
    font-size: 0.85rem;
    color: var(--accent-2);
    font-weight: 600;
    margin-bottom: 6px;
    display: flex;
    align-items: center;
    gap: 8px;
}

.tl-tag {
    font-size: 0.68rem;
    padding: 2px 8px;
    border-radius: 999px;
    font-weight: 700;
    letter-spacing: 0.03em;
}

.tl-tag-exit {
    background: rgba(108, 240, 178, 0.12);
    border: 1px solid rgba(108, 240, 178, 0.25);
    color: var(--accent-3);
}

.tl-body > p {
    font-size: 0.85rem;
    color: var(--text-secondary);
    line-height: 1.6;
    margin: 0;
}

/* ====== PROFILE BOTTOM (EDU / HONORS / PATENTS / SKILLS) ====== */
.profile-bottom {
    display: grid;
    grid-template-columns: 1fr 1fr 1fr 1fr;
    gap: 28px;
    margin-bottom: 56px;
}

.profile-col-title {
    font-size: 1.05rem;
    font-weight: 700;
    margin-bottom: 18px;
}

.edu-card {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
    padding: 18px 20px;
    margin-bottom: 12px;
}

.edu-degree {
    font-size: 0.95rem;
    font-weight: 700;
    margin-bottom: 2px;
}

.edu-school {
    font-size: 0.85rem;
    color: var(--accent-2);
    font-weight: 500;
}

.edu-year {
    font-size: 0.76rem;
    color: var(--text-muted);
    font-family: var(--font-mono);
    margin-top: 4px;
}

.honor-item {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 12px 0;
    border-bottom: 1px solid var(--border);
    font-size: 0.88rem;
    color: var(--text-secondary);
}

.honor-item:last-child { border-bottom: 0; }

.honor-badge {
    font-size: 0.74rem;
    font-weight: 700;
    padding: 4px 10px;
    border-radius: 999px;
    background: rgba(255, 138, 61, 0.12);
    border: 1px solid rgba(255, 138, 61, 0.22);
    color: var(--accent);
    white-space: nowrap;
    flex-shrink: 0;
}

.skill-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
}

.skill-tag {
    font-size: 0.78rem;
    padding: 6px 14px;
    border-radius: 999px;
    background: rgba(124, 156, 255, 0.10);
    border: 1px solid rgba(124, 156, 255, 0.18);
    color: var(--accent-2);
    font-weight: 600;
}

.skill-tag-biz {
    background: rgba(108, 240, 178, 0.08);
    border-color: rgba(108, 240, 178, 0.18);
    color: var(--accent-3);
}

/* ====== CLIENTS SERVED ====== */
.clients-served {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 36px 32px;
}

.client-logos {
    display: flex;
    flex-wrap: wrap;
    gap: 12px;
    justify-content: center;
}

.client-logos span {
    font-size: 0.82rem;
    padding: 8px 18px;
    border-radius: 999px;
    background: rgba(255, 255, 255, 0.04);
    border: 1px solid var(--border);
    color: var(--text-secondary);
    font-weight: 500;
    transition: all 0.25s;
}

.client-logos span:hover {
    background: rgba(255, 255, 255, 0.08);
    color: var(--text-primary);
    border-color: var(--border-strong);
}

/* ====== CLIENT STRIP (compact color logos) ====== */
.client-strip {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
    justify-content: center;
}

.cl {
    font-size: 0.82rem;
    font-weight: 800;
    padding: 8px 16px;
    border-radius: 999px;
    background: rgba(255, 255, 255, 0.04);
    border: 1px solid rgba(255, 255, 255, 0.08);
    transition: all 0.25s;
    letter-spacing: 0.01em;
}

.cl:hover {
    background: rgba(255, 255, 255, 0.10);
    border-color: rgba(255, 255, 255, 0.18);
    transform: translateY(-2px);
}

/* ====== PATENT COUNT & MORE ====== */
.patent-count {
    font-size: 0.72rem;
    font-weight: 700;
    color: var(--accent);
    padding: 2px 8px;
    border-radius: 999px;
    background: rgba(255, 138, 61, 0.12);
    border: 1px solid rgba(255, 138, 61, 0.22);
    margin-left: 6px;
    vertical-align: middle;
}

.patent-more {
    font-size: 0.78rem;
    color: var(--text-muted);
    font-style: italic;
    padding: 6px 0 0;
}

/* ====== PATENT LIST ====== */
.patent-list {
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.patent-item {
    display: flex;
    align-items: baseline;
    gap: 10px;
    padding: 10px 14px;
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
    font-size: 0.82rem;
    color: var(--text-secondary);
    line-height: 1.5;
}

.patent-id {
    font-family: var(--font-mono);
    font-size: 0.72rem;
    font-weight: 600;
    color: var(--accent);
    white-space: nowrap;
    flex-shrink: 0;
}

/* ====== HONOR LINK ====== */
.honor-link {
    font-size: 0.88rem;
    color: var(--text-secondary);
    text-decoration: none;
    transition: color 0.2s;
}

.honor-link:hover { color: var(--accent); text-decoration: underline; }

/* ====== STAT LINK ====== */
.stat-link {
    text-decoration: none;
    color: inherit;
    -webkit-text-fill-color: inherit;
    transition: opacity 0.2s;
}

.stat-link:hover { opacity: 0.8; text-decoration: underline; }

/* ====== TOPICS GRID ====== */
.topics-grid {
    display: grid;
    grid-template-columns: 1fr 1fr 1fr;
    gap: 24px;
}

.topic-card {
    padding: 32px 26px;
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    transition: all 0.3s;
    display: flex;
    flex-direction: column;
}

.topic-card:hover {
    background: var(--bg-card-hover);
    border-color: var(--border-strong);
    transform: translateY(-4px);
    box-shadow: var(--shadow-lg);
}

.topic-number {
    font-size: 2.8rem;
    font-weight: 900;
    background: linear-gradient(135deg, var(--accent), var(--accent-2));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    line-height: 1;
    margin-bottom: 12px;
    opacity: 0.7;
}

.topic-card h3 {
    font-size: 1.1rem;
    font-weight: 700;
    margin-bottom: 10px;
}

.topic-card p {
    font-size: 0.88rem;
    color: var(--text-secondary);
    line-height: 1.65;
    flex: 1;
}

.topic-tags {
    display: flex;
    gap: 8px;
    margin-top: 18px;
    flex-wrap: wrap;
}

.tag {
    font-size: 0.74rem;
    padding: 4px 10px;
    border-radius: 999px;
    background: rgba(124, 156, 255, 0.10);
    border: 1px solid rgba(124, 156, 255, 0.18);
    color: var(--accent-2);
    font-weight: 600;
}

/* ====== CASES GRID ====== */
.cases-grid {
    display: grid;
    grid-template-columns: 1fr 1fr 1fr;
    gap: 24px;
}

.case-card {
    padding: 32px 26px;
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    transition: all 0.3s;
}

.case-card:hover {
    background: var(--bg-card-hover);
    border-color: var(--border-strong);
    transform: translateY(-4px);
    box-shadow: var(--shadow-lg);
}

.case-icon {
    font-size: 2.2rem;
    margin-bottom: 8px;
}

.case-label {
    font-size: 0.76rem;
    font-weight: 700;
    color: var(--accent-3);
    text-transform: uppercase;
    letter-spacing: 0.1em;
    margin-bottom: 8px;
}

.case-card h3 {
    font-size: 1.1rem;
    font-weight: 700;
    margin-bottom: 10px;
}

.case-card p {
    font-size: 0.88rem;
    color: var(--text-secondary);
    line-height: 1.65;
    margin-bottom: 18px;
}

.case-metrics {
    display: flex;
    flex-direction: column;
    gap: 6px;
}

.case-metrics span {
    font-size: 0.8rem;
    color: var(--text-muted);
    font-weight: 500;
}

/* ====== DIFFERENTIATORS ====== */
.diff-grid {
    display: flex;
    flex-direction: column;
    gap: 20px;
    max-width: 800px;
    margin: 0 auto;
}

.diff-card {
    padding: 28px 32px;
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    transition: all 0.3s;
}

.diff-card:hover {
    border-color: rgba(255, 138, 61, 0.28);
    box-shadow: 0 0 30px rgba(255, 138, 61, 0.06);
}

.diff-compare {
    display: flex;
    align-items: center;
    gap: 24px;
}

.diff-old, .diff-new {
    flex: 1;
}

.diff-label {
    display: inline-block;
    font-size: 0.72rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    padding: 3px 10px;
    border-radius: 999px;
    margin-bottom: 8px;
}

.diff-old .diff-label {
    background: rgba(127, 137, 163, 0.15);
    color: var(--text-muted);
}

.diff-new .diff-label {
    background: rgba(255, 138, 61, 0.15);
    color: var(--accent);
}

.diff-old p {
    color: var(--text-muted);
    font-size: 0.92rem;
}

.diff-new p {
    color: var(--text-primary);
    font-size: 0.92rem;
    font-weight: 600;
}

.diff-arrow {
    font-size: 1.6rem;
    color: var(--accent);
    flex-shrink: 0;
    font-weight: 700;
}

/* ====== AUDIENCE ====== */
.audience-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 24px;
}

.audience-card {
    padding: 32px 28px;
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    transition: all 0.3s;
}

.audience-card:hover {
    background: var(--bg-card-hover);
    border-color: var(--border-strong);
    transform: translateY(-2px);
}

.audience-icon {
    font-size: 2rem;
    margin-bottom: 14px;
}

.audience-card h3 {
    font-size: 1.1rem;
    font-weight: 700;
    margin-bottom: 8px;
}

.audience-card p {
    font-size: 0.88rem;
    color: var(--text-secondary);
    line-height: 1.65;
}

/* ====== CTA ====== */
.cta-section {
    padding: 80px 28px 100px;
}

.cta-card {
    position: relative;
    text-align: center;
    padding: 64px 48px;
    background: linear-gradient(135deg, rgba(255, 138, 61, 0.08), rgba(124, 156, 255, 0.08));
    border: 1px solid rgba(255, 138, 61, 0.20);
    border-radius: var(--radius-lg);
    overflow: hidden;
}

.cta-glow {
    position: absolute;
    top: -60%; left: 30%;
    width: 300px; height: 300px;
    background: radial-gradient(circle, rgba(255, 138, 61, 0.15), transparent 70%);
    border-radius: 50%;
    filter: blur(60px);
    pointer-events: none;
}

.cta-card h2 {
    font-size: 2rem;
    font-weight: 800;
    margin-bottom: 12px;
    position: relative;
}

.cta-card p {
    font-size: 1.05rem;
    color: var(--text-secondary);
    margin-bottom: 28px;
    max-width: 540px;
    margin-left: auto;
    margin-right: auto;
    position: relative;
}

.cta-features {
    display: flex;
    justify-content: center;
    gap: 20px;
    flex-wrap: wrap;
    margin-bottom: 32px;
    position: relative;
}

.cta-features span {
    font-size: 0.88rem;
    color: var(--text-secondary);
    font-weight: 500;
}

.cta-actions {
    display: flex;
    justify-content: center;
    gap: 14px;
    position: relative;
}

.btn {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 14px 32px;
    border-radius: 999px;
    font-size: 0.95rem;
    font-weight: 700;
    transition: all 0.25s;
    border: none;
    cursor: pointer;
}

.btn-primary {
    background: linear-gradient(135deg, var(--accent), #ff6b1a);
    color: #fff;
    box-shadow: 0 4px 20px rgba(255, 138, 61, 0.30);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 30px rgba(255, 138, 61, 0.40);
}

.btn-secondary {
    background: rgba(255, 255, 255, 0.06);
    color: var(--text-primary);
    border: 1px solid var(--border-strong);
}

.btn-secondary:hover {
    background: rgba(255, 255, 255, 0.10);
    transform: translateY(-2px);
}

/* ====== FOOTER ====== */
.footer {
    text-align: center;
    padding: 32px 28px;
    font-size: 0.82rem;
    color: var(--text-muted);
    border-top: 1px solid var(--border);
}

/* ====== RESPONSIVE ====== */
@media (max-width: 1024px) {
    .hero-content { flex-direction: column; gap: 40px; text-align: center; }
    .hero-left { order: 0; }
    .hero-right { order: 1; }
    .hero-tagline { margin-left: auto; margin-right: auto; }
    .hero-stats { justify-content: center; }
    .hero-name { font-size: 2.6rem; }
    .about-grid,
    .topics-grid,
    .cases-grid { grid-template-columns: 1fr 1fr; }
    .profile-bottom { grid-template-columns: 1fr 1fr; }
    .dot-nav { display: none; }
}

@media (max-width: 640px) {
    .slide > .container { padding: 24px 16px; }
    .slide-hero { padding: 0 16px; }
    .hero-name { font-size: 2rem; }
    .hero-tagline { font-size: 1.05rem; }
    .hero-stats { flex-direction: column; gap: 18px; align-items: center; }
    .about-grid,
    .topics-grid,
    .cases-grid,
    .audience-grid { grid-template-columns: 1fr; }
    .profile-bottom { grid-template-columns: 1fr; }
    .section-header h2 { font-size: 1.6rem; }
    .diff-compare { flex-direction: column; text-align: center; }
    .diff-arrow { transform: rotate(90deg); }
    .avatar-ring { width: 160px; height: 160px; }
    .tl-row { padding: 16px 14px; gap: 12px; }
    .tl-logo { width: 36px; height: 36px; }
    .tl-logo svg { width: 22px; height: 22px; }
    .tl-header { flex-direction: column; gap: 2px; }
    .header-link { display: none; }
    .dot-nav { display: none; }
    .slide-counter { bottom: 12px; right: 14px; font-size: 0.75rem; }
}

/* Active nav link */
.header-link.active {
    color: var(--accent);
}

/* Footer hidden in deck mode */
.footer { display: none; }