@import url('https://fonts.googleapis.com/css2?family=Outfit:wght@300;400;500;600;700&family=Playfair+Display:wght@400;600;700&family=Space+Mono:wght@700&display=swap');

:root {
    --bg-primary: #181818;
    --bg-secondary: #121212;
    --bg-deep: #0e0e0e;
    --bg-card: #222222;
    --text-primary: #F0F0F0;
    --text-secondary: #8a8a8a;
    --accent-orange: #FACD2A;
    --accent-green: #3FB950;
    --accent-green-light: rgba(63, 185, 80, 0.15);
    --accent-red: #F85149;
    --border-color: #2a2a2a;
    --max-width: 1200px;
    --font-heading: 'Playfair Display', serif;
    --font-body: 'Outfit', sans-serif;
    --font-terminal: 'Space Mono', monospace;
}

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

body {
    font-family: var(--font-body);
    background-color: var(--bg-primary);
    color: var(--text-primary);
    line-height: 1.6;
    overflow-x: hidden;
}

/* Typography */
h1, h2, h3, h4, h5, h6 {
    font-family: var(--font-heading);
    line-height: 1.2;
    font-weight: 600;
    color: var(--text-primary);
}

a {
    text-decoration: none;
    color: inherit;
    transition: color 0.2s ease;
}

ul {
    list-style: none;
}

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

/* Layout */
.container {
    max-width: var(--max-width);
    margin: 0 auto;
    padding: 0 2rem;
    width: 100%;
}

/* =========================================
   Header / Nav
   ========================================= */

header {
    position: sticky;
    top: 0;
    background: rgba(24, 24, 24, 0.9);
    backdrop-filter: blur(10px);
    z-index: 1000;
    border-bottom: 1px solid transparent;
    transition: border-color 0.3s ease;
}

header.scrolled {
    border-color: var(--border-color);
}

.nav-container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    height: 80px;
}

.logo {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    font-weight: 700;
    font-size: 1.25rem;
    color: var(--text-primary);
    font-family: var(--font-terminal);
}

.logo img {
    height: 48px;
    width: auto;
}

.nav-links {
    display: flex;
    gap: 2.5rem;
    align-items: center;
}

.nav-links a {
    font-size: 0.95rem;
    font-weight: 500;
    color: var(--text-secondary);
}

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

/* Mobile Menu Toggle */
.mobile-menu-toggle {
    display: none;
    flex-direction: column;
    justify-content: center;
    gap: 5px;
    width: 30px;
    height: 30px;
    background: none;
    border: none;
    cursor: pointer;
    padding: 0;
    z-index: 1001;
}

.mobile-menu-toggle span {
    display: block;
    width: 100%;
    height: 2px;
    background: var(--text-primary);
    transition: all 0.3s ease;
}

.mobile-menu-toggle.open span:nth-child(1) {
    transform: rotate(45deg) translate(5px, 5px);
}

.mobile-menu-toggle.open span:nth-child(2) {
    opacity: 0;
}

.mobile-menu-toggle.open span:nth-child(3) {
    transform: rotate(-45deg) translate(5px, -5px);
}

.cta-button {
    background-color: var(--accent-orange);
    color: #181818 !important;
    padding: 0.6rem 1.25rem;
    border-radius: 6px;
    font-weight: 500;
    font-size: 0.9rem;
    transition: all 0.2s ease;
}

.cta-button:hover {
    background-color: #e6bb26;
    transform: translateY(-1px);
}

/* =========================================
   Buttons
   ========================================= */

.primary-btn {
    background-color: var(--accent-orange);
    color: #181818;
    padding: 0.75rem 1.5rem;
    border-radius: 8px;
    font-weight: 600;
    font-size: 1rem;
    transition: transform 0.2s ease, box-shadow 0.2s ease;
    border: none;
    cursor: pointer;
    display: inline-block;
}

.primary-btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(250, 205, 42, 0.2);
}

.secondary-btn {
    background-color: transparent;
    color: var(--text-primary);
    padding: 0.75rem 1.5rem;
    border-radius: 8px;
    font-weight: 500;
    font-size: 1rem;
    border: 1px solid var(--border-color);
    transition: all 0.2s ease;
    display: inline-block;
}

.secondary-btn:hover {
    border-color: var(--accent-orange);
    color: var(--accent-orange);
}

/* =========================================
   Section Titles
   ========================================= */

.section-title {
    font-size: 2.5rem;
    text-align: center;
    margin-bottom: 2rem;
    color: var(--text-primary);
}

.section-subtitle {
    text-align: center;
    color: var(--text-secondary);
    font-size: 1.3rem;
    margin-bottom: 4rem;
    max-width: 700px;
    margin-left: auto;
    margin-right: auto;
}

/* =========================================
   Hero Section
   ========================================= */

.hero {
    min-height: calc(100vh - 80px);
    position: relative;
    display: flex;
    align-items: center;
    justify-content: center;
}

.hero-inner {
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: center;
    gap: 1rem;
    padding-top: 8rem;
    padding-bottom: 12rem;
    position: relative;
    z-index: 1;
}

.yc-badge {
    display: inline-flex;
    align-items: center;
    gap: 0.6rem;
    padding: 0.4rem 0.6rem;
    border: 1px solid var(--border-color);
    border-radius: 8px;
    background: var(--bg-card);
    margin-bottom: 1rem;
}

.yc-badge img {
    height: 22px;
    width: auto;
}

.yc-badge span {
    font-size: 0.9rem;
    font-weight: 500;
    color: var(--text-secondary);
    white-space: nowrap;
}

.hero::before {
    content: '';
    position: absolute;
    inset: 0;
    background: radial-gradient(ellipse 40% 30% at 50% 20%, rgba(250, 205, 42, 0.05) 0%, transparent 100%);
    pointer-events: none;
    z-index: 0;
}

.hero h1 {
    font-size: 5.5rem;
    letter-spacing: -0.02em;
    margin-bottom: 1.5rem;
    max-width: none;
    color: var(--text-primary);
    -webkit-text-fill-color: var(--text-primary);
}

.hero-accent {
    color: var(--accent-orange);
    -webkit-text-fill-color: var(--accent-orange);
}

.hero p {
    font-size: 1.5rem;
    color: var(--text-secondary);
    max-width: 650px;
    margin-bottom: 2.5rem;
    line-height: 1.8;
    padding: 0 1rem;
}

.hero-actions {
    display: flex;
    gap: 1rem;
}

/* =========================================
   Email Updates Form
   ========================================= */

.updates-form {
    margin-top: 2.5rem;
    width: 100%;
    max-width: 480px;
    text-align: center;
}

.updates-label {
    font-size: 0.9rem;
    color: var(--text-secondary);
    margin-bottom: 0.75rem;
}

.email-input-group {
    display: flex;
    gap: 0;
    background: rgba(37, 37, 64, 0.5);
    border: 1px solid var(--border-color);
    border-radius: 10px;
    overflow: hidden;
    transition: border-color 0.3s ease, box-shadow 0.3s ease;
}

.email-input-group:focus-within {
    border-color: var(--accent-orange);
    box-shadow: 0 0 0 3px rgba(250, 205, 42, 0.1);
}

.email-form input[type="email"] {
    flex: 1;
    padding: 0.875rem 1.25rem;
    background: transparent;
    border: none;
    color: var(--text-primary);
    font-family: var(--font-body);
    font-size: 1rem;
    outline: none;
}

.email-form input[type="email"]::placeholder {
    color: var(--text-secondary);
}

.email-btn {
    position: relative;
    padding: 0.875rem 1.5rem;
    background: var(--accent-orange);
    color: #181818;
    border: none;
    font-family: var(--font-body);
    font-weight: 600;
    font-size: 0.95rem;
    cursor: pointer;
    transition: background 0.2s ease, transform 0.2s ease;
    white-space: nowrap;
}

.email-btn:hover:not(:disabled) {
    background: #e6bb26;
}

.email-btn:active:not(:disabled) {
    transform: scale(0.98);
}

.email-btn:disabled {
    cursor: not-allowed;
}

.email-btn .btn-text {
    transition: opacity 0.2s ease;
}

.email-btn .btn-loading {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 18px;
    height: 18px;
    border: 2px solid rgba(24, 24, 24, 0.3);
    border-top-color: var(--text-primary);
    border-radius: 50%;
    opacity: 0;
    animation: spin 0.8s linear infinite;
}

@keyframes spin {
    to {
        transform: translate(-50%, -50%) rotate(360deg);
    }
}

.email-message {
    margin-top: 0.75rem;
    font-size: 0.9rem;
    min-height: 1.5em;
}

.email-message.success {
    color: var(--accent-green);
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    font-weight: 500;
}

.email-message .success-icon {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 22px;
    height: 22px;
    background: var(--accent-green);
    color: white;
    border-radius: 50%;
    font-size: 0.75rem;
}

.email-message.error {
    color: var(--accent-red);
}

.updates-form-cta {
    margin: 0 auto;
    position: relative;
    z-index: 1;
}

.cta-divider {
    color: var(--text-secondary);
    font-size: 0.9rem;
    margin: 1.5rem 0;
    position: relative;
    z-index: 1;
}

@media (max-width: 520px) {
    .updates-form {
        width: calc(100% - 2rem);
    }

    .email-input-group {
        flex-direction: column;
        border-radius: 10px;
    }

    .email-form input[type="email"] {
        text-align: center;
        padding: 1rem;
    }

    .email-btn {
        padding: 1rem;
        border-radius: 0 0 9px 9px;
    }
}

/* =========================================
   Problem Section
   ========================================= */

.problem-section {
    min-height: 100vh;
    padding: 10rem 0 14rem;
    display: flex;
    align-items: center;
    background:
        linear-gradient(180deg, var(--bg-deep) 0%, #131313 50%, var(--bg-deep) 100%);
}

.problem-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 1.5rem;
    margin-bottom: 3rem;
}

/* Metallic card wrapper */
.problem-card-wrap {
    perspective: 800px;
    opacity: 0;
    transform: translateY(20px);
    transition: opacity 0.6s ease, transform 0.6s ease;
}

.problem-card-wrap.visible {
    opacity: 1;
    transform: translateY(0);
}

/* The card itself */
.problem-card {
    --mx: 50%;
    --my: 50%;
    --shine-opacity: 0;

    position: relative;
    height: 280px;
    border-radius: 16px;
    overflow: hidden;
    cursor: default;
    transform-style: preserve-3d;
    transition: transform 0.15s ease-out, box-shadow 0.25s ease-out;
    will-change: transform;

    background: linear-gradient(145deg, #1e1e1e, #2a2a2a 40%, #1a1a1a 60%, #2a2a2a);

    box-shadow:
        0 4px 20px rgba(0, 0, 0, 0.5),
        0 0 0 1px rgba(255, 255, 255, 0.05);
}

.problem-card:hover {
    box-shadow:
        0 20px 60px rgba(0, 0, 0, 0.6),
        0 0 0 1px rgba(255, 255, 255, 0.1),
        0 0 40px rgba(255, 255, 255, 0.04);
}

/* Shine / glare overlay */
.problem-card::before {
    content: '';
    position: absolute;
    inset: 0;
    z-index: 3;
    border-radius: inherit;
    pointer-events: none;
    opacity: var(--shine-opacity);
    transition: opacity 0.3s ease;
    background:
        radial-gradient(
            circle at var(--mx) var(--my),
            rgba(255, 255, 255, 0.35) 0%,
            rgba(255, 255, 255, 0.08) 30%,
            transparent 70%
        );
    mix-blend-mode: overlay;
}

/* Holographic / metallic color-shift layer */
.problem-card::after {
    content: '';
    position: absolute;
    inset: 0;
    z-index: 2;
    border-radius: inherit;
    pointer-events: none;
    opacity: var(--shine-opacity);
    transition: opacity 0.3s ease;
    background:
        linear-gradient(
            115deg,
            transparent 20%,
            rgba(120, 200, 255, 0.15) 36%,
            rgba(200, 120, 255, 0.2) 42%,
            rgba(255, 180, 120, 0.15) 48%,
            transparent 64%
        );
    background-size: 200% 200%;
    background-position: var(--mx) var(--my);
    mix-blend-mode: color-dodge;
    filter: brightness(1.2);
}

/* Top edge shimmer */
.problem-card-edge {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 1px;
    z-index: 4;
    background: linear-gradient(
        90deg,
        transparent 10%,
        rgba(255, 255, 255, 0.25) 50%,
        transparent 90%
    );
    pointer-events: none;
}

/* Content pinned to bottom */
.problem-card-content {
    position: relative;
    z-index: 1;
    height: 100%;
    display: flex;
    flex-direction: column;
    justify-content: flex-end;
    padding: 24px;
    transform: translateZ(20px);
}

/* Icon at top-right */
.problem-icon {
    position: absolute;
    top: 20px;
    right: 20px;
    z-index: 1;
    width: 40px;
    height: 40px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 8px;
    transform: translateZ(30px);
}

.problem-icon svg {
    width: 100%;
    height: 100%;
}

.problem-card h3 {
    font-size: 1.25rem;
    font-family: var(--font-body);
    font-weight: 700;
    margin-bottom: 0.4rem;
    line-height: 1.2;
    text-align: left;
    background: linear-gradient(135deg, #fff 40%, #aab);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.problem-card p {
    font-size: 0.9rem;
    color: rgba(255, 255, 255, 0.5);
    line-height: 1.5;
    text-align: left;
    font-weight: 300;
}

/* Per-card accent colors */
.problem-card.silver  { background: linear-gradient(145deg, #1e1e1e, #2a2a2a 40%, #1a1a1a 60%, #2a2a2a); }
.problem-card.gold    { background: linear-gradient(145deg, #2a2218, #3d3224 40%, #231e14 60%, #3d3224); }
.problem-card.rose    { background: linear-gradient(145deg, #2a1a22, #3d2430 40%, #231420 60%, #3d2430); }
.problem-card.emerald { background: linear-gradient(145deg, #1a2a1e, #243d2a 40%, #142318 60%, #243d2a); }

.problem-card.silver::after  { background: linear-gradient(115deg, transparent 20%, rgba(160,200,255,0.2) 36%, rgba(200,160,255,0.22) 42%, rgba(160,255,200,0.18) 48%, transparent 64%); background-size: 200% 200%; background-position: var(--mx) var(--my); }
.problem-card.gold::after    { background: linear-gradient(115deg, transparent 20%, rgba(255,220,120,0.2) 36%, rgba(255,180,80,0.22) 42%, rgba(255,240,180,0.18) 48%, transparent 64%); background-size: 200% 200%; background-position: var(--mx) var(--my); }
.problem-card.rose::after    { background: linear-gradient(115deg, transparent 20%, rgba(255,140,180,0.2) 36%, rgba(255,100,200,0.22) 42%, rgba(200,140,255,0.18) 48%, transparent 64%); background-size: 200% 200%; background-position: var(--mx) var(--my); }
.problem-card.emerald::after { background: linear-gradient(115deg, transparent 20%, rgba(100,255,160,0.2) 36%, rgba(80,220,140,0.22) 42%, rgba(140,255,200,0.18) 48%, transparent 64%); background-size: 200% 200%; background-position: var(--mx) var(--my); }

.problem-card.silver .problem-icon  { background: rgba(160,200,255,0.1); color: #8ac; }
.problem-card.gold .problem-icon    { background: rgba(255,200,100,0.1); color: #da8; }
.problem-card.rose .problem-icon    { background: rgba(255,140,180,0.1); color: #e8a; }
.problem-card.emerald .problem-icon { background: rgba(100,255,160,0.1); color: #6c9; }

@media (prefers-reduced-motion: reduce) {
    .problem-card { transition: none !important; transform: none !important; }
    .problem-card::before, .problem-card::after { display: none; }
}

.problem-narrative {
    max-width: 700px;
    margin: 0 auto;
    text-align: center;
}

.problem-narrative p {
    font-size: 1.125rem;
    color: var(--text-secondary);
    margin-bottom: 0.5rem;
    line-height: 1.8;
}

.problem-kicker {
    margin-top: 1.5rem;
    font-size: 1rem !important;
    color: var(--text-secondary);
}

.problem-bottom-line {
    text-align: center;
    color: var(--text-secondary);
    font-size: 1.3rem;
    margin-top: 3rem;
    margin-left: auto;
    margin-right: auto;
}

.problem-bottom-line strong {
    color: var(--text-primary);
}

/* =========================================
   Core Idea Section
   ========================================= */

.core-idea-section {
    min-height: 100vh;
    padding: 10rem 0;
    display: flex;
    align-items: center;
    background: linear-gradient(180deg, #141414 0%, var(--bg-primary) 50%, #1a1a1a 100%);
    position: relative;
    overflow: hidden;
}

.core-idea-section::after {
    content: '';
    position: absolute;
    inset: 0;
    background-image:
        linear-gradient(rgba(255, 255, 255, 0.02) 1px, transparent 1px),
        linear-gradient(90deg, rgba(255, 255, 255, 0.02) 1px, transparent 1px);
    background-size: 48px 48px;
    pointer-events: none;
    z-index: 0;
    -webkit-mask-image: radial-gradient(ellipse at 50% 40%, black 20%, transparent 70%);
    mask-image: radial-gradient(ellipse at 50% 40%, black 20%, transparent 70%);
}

.core-idea-section::before {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 80%;
    height: 200%;
    background: radial-gradient(ellipse, rgba(250, 205, 42, 0.06) 0%, transparent 60%);
    pointer-events: none;
}

.core-idea-section > .container {
    position: relative;
    z-index: 1;
}

.core-idea-content {
    text-align: center;
    max-width: 800px;
    margin: 0 auto;
    position: relative;
    z-index: 1;
}

.core-idea-content h2 {
    font-size: 2.75rem;
    margin-bottom: 1rem;
    color: var(--text-primary);
}

.core-idea-content > p {
    font-size: 1.25rem;
    color: var(--text-secondary);
    margin-bottom: 2.5rem;
}

.core-pillars {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 1.5rem;
    margin-bottom: 2.5rem;
    flex-wrap: wrap;
}

.pillar {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 0.5rem;
    padding: 1.25rem 2rem;
    background: rgba(250, 205, 42, 0.06);
    border: 1px solid var(--border-color);
    border-radius: 10px;
    transition: border-color 0.3s ease, transform 0.3s ease;
}

.pillar:hover {
    border-color: var(--accent-orange);
    transform: translateY(-2px);
}

.pillar-number {
    font-family: var(--font-terminal);
    font-size: 0.75rem;
    color: var(--accent-orange);
    font-weight: 700;
}

.pillar-label {
    font-size: 1rem;
    font-weight: 600;
    color: var(--text-primary);
}

.pillar-divider {
    width: 24px;
    height: 2px;
    background: var(--border-color);
}

.core-tagline {
    font-size: 1.5rem !important;
    font-family: var(--font-heading);
    color: var(--accent-orange) !important;
    -webkit-text-fill-color: var(--accent-orange);
    font-weight: 600;
}

/* =========================================
   Solution Section (How It Works)
   ========================================= */

.solution-section {
    padding: 6rem 0;
    background: var(--bg-secondary);
}

/* Steps Tabs */
.steps-tabs {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 1rem;
    margin-bottom: 2.5rem;
}

.steps-tab {
    display: flex;
    flex-direction: column;
    align-items: flex-start;
    gap: 0.5rem;
    padding: 1.25rem;
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: 12px;
    cursor: pointer;
    transition: all 0.3s ease;
    font-family: var(--font-body);
}

.steps-tab:hover {
    border-color: var(--accent-orange);
}

.steps-tab.active {
    background: rgba(250, 205, 42, 0.1);
    border-color: var(--accent-orange);
}

.tab-number {
    font-family: var(--font-terminal);
    font-size: 0.8rem;
    font-weight: 700;
    color: var(--text-secondary);
    opacity: 0.5;
}

.steps-tab.active .tab-number {
    color: var(--accent-orange);
    opacity: 1;
}

.tab-label {
    font-size: 1rem;
    font-weight: 600;
    color: var(--text-secondary);
    line-height: 1.3;
    text-align: left;
}

.steps-tab.active .tab-label {
    color: var(--text-primary);
}

/* Steps Panels */
.steps-panels {
    border: 1px solid var(--border-color);
    border-radius: 16px;
    padding: 3rem;
    min-height: 200px;
    background: var(--bg-card);
}

.steps-panel {
    display: none;
}

.steps-panel.active {
    display: block;
}

.panel-text h3 {
    font-size: 1.4rem;
    font-family: var(--font-body);
    font-weight: 600;
    margin-bottom: 0.75rem;
}

.panel-text p {
    font-size: 1.05rem;
    color: var(--text-secondary);
    line-height: 1.7;
    max-width: 600px;
}

.optimize-list {
    margin-top: 0.75rem;
    padding-left: 0;
}

.optimize-list li {
    position: relative;
    padding-left: 1.25rem;
    margin-bottom: 0.5rem;
    color: var(--text-secondary);
    font-size: 1rem;
}

.optimize-list li::before {
    content: '';
    position: absolute;
    left: 0;
    top: 0.6em;
    width: 6px;
    height: 6px;
    background: var(--accent-orange);
    border-radius: 50%;
}

/* =========================================
   Comparison Section
   ========================================= */

.comparison-section {
    padding: 6rem 0;
    background: linear-gradient(180deg, var(--bg-secondary) 0%, var(--bg-primary) 100%);
}

.comparison-table {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 2rem;
    max-width: 800px;
    margin: 0 auto 2rem;
}

.comparison-col {
    border-radius: 12px;
    padding: 2rem;
    opacity: 0;
    transform: translateY(20px);
    transition: opacity 0.6s ease, transform 0.6s ease;
}

.comparison-col.visible {
    opacity: 1;
    transform: translateY(0);
}

.comparison-without {
    background: rgba(248, 81, 73, 0.06);
    border: 1px solid rgba(248, 81, 73, 0.2);
}

.comparison-with {
    background: rgba(63, 185, 80, 0.08);
    border: 1px solid rgba(63, 185, 80, 0.25);
}

.comparison-header {
    font-family: var(--font-terminal);
    font-size: 0.85rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    margin-bottom: 1.5rem;
    padding-bottom: 0.75rem;
    border-bottom: 1px solid var(--border-color);
}

.comparison-without .comparison-header {
    color: var(--accent-red);
}

.comparison-with .comparison-header {
    color: var(--accent-green);
}

.comparison-col ul li {
    display: flex;
    align-items: flex-start;
    gap: 0.75rem;
    margin-bottom: 1rem;
    font-size: 0.95rem;
    color: var(--text-secondary);
    line-height: 1.5;
}

.comparison-col ul li svg {
    width: 18px;
    height: 18px;
    flex-shrink: 0;
    margin-top: 2px;
}

.comparison-without ul li svg {
    stroke: var(--accent-red);
}

.comparison-with ul li svg {
    stroke: var(--accent-green);
}

.comparison-tagline {
    text-align: center;
    font-size: 1.25rem;
    font-family: var(--font-heading);
    color: var(--text-secondary);
    font-style: italic;
}

/* =========================================
   Results & CTA Section
   ========================================= */

.results-section {
    padding: 8rem 0;
    display: flex;
    align-items: center;
    background: linear-gradient(180deg, #161616 0%, #1a1a1a 50%, #161616 100%);
    position: relative;
}

.results-section::after {
    content: '';
    position: absolute;
    inset: 0;
    background-image:
        linear-gradient(rgba(255, 255, 255, 0.018) 1px, transparent 1px),
        linear-gradient(90deg, rgba(255, 255, 255, 0.018) 1px, transparent 1px);
    background-size: 40px 40px;
    pointer-events: none;
    z-index: 0;
}

.results-section > .container {
    position: relative;
    z-index: 1;
}

.results-content {
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: center;
}

.results-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 2rem;
    max-width: 640px;
    margin: 0 auto 5rem;
}

.result-card {
    text-align: center;
    padding: 3.5rem 2rem;
    background: var(--bg-card);
    border: 1px solid var(--accent-orange);
    border-radius: 16px;
    opacity: 0;
    transform: translateY(20px);
    transition: opacity 0.6s ease, transform 0.6s ease, box-shadow 0.3s ease;
}

.result-card.visible {
    opacity: 1;
    transform: translateY(0);
}

.result-card:hover {
    box-shadow: 0 0 40px rgba(250, 205, 42, 0.12);
}

.result-value {
    font-family: var(--font-terminal);
    font-size: 4rem;
    font-weight: 700;
    color: var(--accent-orange);
    margin-bottom: 0.75rem;
    line-height: 1;
}

.result-label {
    font-size: 1rem;
    color: var(--text-secondary);
    line-height: 1.5;
}

.results-cta {
    max-width: 600px;
}

.results-cta h3 {
    font-size: 1.5rem;
    margin-bottom: 1.5rem;
    color: var(--text-primary);
}

.results-cta p {
    font-size: 1.2rem;
    color: var(--text-secondary);
    margin-bottom: 2.5rem;
    line-height: 1.7;
}

.results-cta .primary-btn {
    font-size: 1.125rem;
    padding: 1rem 2rem;
}

/* =========================================
   Platform Explanation
   ========================================= */

.platform-explain {
    max-width: 900px;
    margin: 0 auto 4rem;
}

.platform-highlights {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 2rem;
    text-align: left;
}

.platform-highlight {
    padding: 1.5rem;
    border: 1px solid var(--border-color);
    border-radius: 12px;
    background: rgba(255, 255, 255, 0.02);
}

.highlight-icon {
    width: 36px;
    height: 36px;
    color: var(--accent-orange);
    margin-bottom: 0.75rem;
}

.highlight-icon svg {
    width: 100%;
    height: 100%;
}

.platform-highlight h3 {
    font-family: var(--font-body);
    font-size: 1.1rem;
    font-weight: 600;
    margin-bottom: 0.5rem;
    color: var(--text-primary);
}

.platform-highlight p {
    font-size: 0.9rem;
    color: var(--text-secondary);
    line-height: 1.6;
}

/* =========================================
   Browser Mockup
   ========================================= */

.browser-mockup {
    max-width: 900px;
    width: 100%;
    margin: 0 auto 4rem;
    border-radius: 12px;
    overflow: hidden;
    border: 1px solid rgba(255, 255, 255, 0.08);
    box-shadow: 0 20px 80px rgba(0, 0, 0, 0.5);
    background: #09090b;
    display: flex;
    flex-direction: column;
}

.browser-chrome {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 10px 16px;
    background: #1c1c1c;
    border-bottom: 1px solid rgba(255, 255, 255, 0.06);
}

.browser-dots {
    display: flex;
    gap: 6px;
    flex-shrink: 0;
}

.browser-dots span {
    width: 10px;
    height: 10px;
    border-radius: 50%;
}

.dot-red { background: #ff5f57; }
.dot-yellow { background: #febc2e; }
.dot-green { background: #28c840; }

.browser-url {
    flex: 1;
    background: rgba(255, 255, 255, 0.06);
    border-radius: 6px;
    padding: 5px 12px;
}

.browser-url-text {
    font-family: var(--font-body);
    font-size: 0.75rem;
    color: rgba(255, 255, 255, 0.45);
}

.browser-body {
    display: flex;
    background: #09090b;
    min-height: 380px;
    flex: 1;
}

/* Sidebar */
.mockup-sidebar {
    width: 180px;
    flex-shrink: 0;
    background: #09090b;
    border-right: 1px solid rgba(255, 255, 255, 0.06);
    padding: 12px 8px;
    display: flex;
    flex-direction: column;
    gap: 4px;
}

.mockup-sidebar-logo {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 8px 10px 16px;
    font-size: 0.85rem;
    font-weight: 700;
    color: #fff;
    font-family: var(--font-terminal);
}

.mockup-sidebar-logo img {
    width: 20px;
    height: 20px;
}

.mockup-sidebar-nav {
    display: flex;
    flex-direction: column;
    gap: 2px;
}

.mockup-nav-item {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 7px 10px;
    border-radius: 6px;
    font-size: 0.78rem;
    color: rgba(255, 255, 255, 0.45);
    cursor: pointer;
    transition: background 0.15s ease, color 0.15s ease;
}

.mockup-nav-item svg {
    width: 14px;
    height: 14px;
    flex-shrink: 0;
}

.mockup-nav-item:hover {
    background: rgba(255, 255, 255, 0.04);
    color: rgba(255, 255, 255, 0.7);
}

.mockup-nav-item.active {
    background: rgba(255, 255, 255, 0.07);
    color: #fff;
}

/* Main content area */
.mockup-main {
    flex: 1;
    position: relative;
    overflow: hidden;
    background: #09090b;
    min-height: 380px;
}

.mockup-screen {
    position: absolute;
    inset: 0;
    padding: 16px 20px;
    opacity: 0;
    visibility: hidden;
    transition: opacity 0.4s ease, visibility 0.4s;
    pointer-events: none;
    overflow-y: auto;
    background: #09090b;
}

.mockup-screen.active {
    opacity: 1;
    visibility: visible;
    pointer-events: auto;
}

.mockup-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 14px;
}

.mockup-title {
    font-size: 0.95rem;
    font-weight: 700;
    color: #fff;
}

.mockup-pills {
    display: flex;
    gap: 0;
    background: rgba(255, 255, 255, 0.04);
    border: 1px solid rgba(255, 255, 255, 0.08);
    border-radius: 6px;
    padding: 2px;
}

.mockup-pill {
    padding: 3px 10px;
    border-radius: 4px;
    font-size: 0.65rem;
    color: rgba(255, 255, 255, 0.4);
    cursor: default;
}

.mockup-pill.active {
    background: rgba(255, 255, 255, 0.1);
    color: #fff;
}

/* Usage screen */
.mockup-cards {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 8px;
    margin-bottom: 12px;
}

.mockup-stat-card {
    background: rgba(255, 255, 255, 0.03);
    border: 1px solid rgba(255, 255, 255, 0.06);
    border-radius: 8px;
    padding: 10px 12px;
}

.mockup-stat-label {
    display: block;
    font-size: 0.6rem;
    color: rgba(255, 255, 255, 0.4);
    margin-bottom: 4px;
}

.mockup-stat-value {
    display: block;
    font-size: 1.1rem;
    font-weight: 700;
    color: #fff;
    font-family: var(--font-body);
}

.mockup-chart-card {
    background: rgba(255, 255, 255, 0.03);
    border: 1px solid rgba(255, 255, 255, 0.06);
    border-radius: 8px;
    padding: 12px;
}

.mockup-chart-title {
    display: block;
    font-size: 0.75rem;
    font-weight: 600;
    color: rgba(255, 255, 255, 0.7);
    margin-bottom: 12px;
}

.mockup-bar-chart {
    display: flex;
    align-items: flex-end;
    gap: 6px;
    height: 120px;
}

.mockup-bar {
    flex: 1;
    display: flex;
    flex-direction: column;
    justify-content: flex-end;
    gap: 1px;
    height: 100%;
}

.mockup-bar::before {
    content: '';
    width: 100%;
    height: var(--input);
    background: hsl(210, 50%, 65%);
    border-radius: 3px 3px 0 0;
}

.mockup-bar::after {
    content: '';
    width: 100%;
    height: var(--output);
    background: hsl(35, 55%, 65%);
    border-radius: 0 0 3px 3px;
}

/* Traces screen */
.mockup-traces-list {
    display: flex;
    flex-direction: column;
    gap: 6px;
}

.mockup-trace-row {
    display: grid;
    grid-template-columns: 10px 1fr auto auto auto auto;
    gap: 10px;
    align-items: center;
    padding: 8px 12px;
    background: rgba(255, 255, 255, 0.03);
    border: 1px solid rgba(255, 255, 255, 0.06);
    border-radius: 8px;
    font-size: 0.72rem;
    color: rgba(255, 255, 255, 0.55);
}

.trace-status {
    width: 8px;
    height: 8px;
    border-radius: 50%;
}

.trace-success { background: #22c55e; }
.trace-error { background: #ef4444; }

.trace-name {
    color: #fff;
    font-weight: 500;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.trace-badge {
    background: rgba(255, 255, 255, 0.07);
    padding: 2px 6px;
    border-radius: 4px;
    font-size: 0.6rem;
    color: rgba(255, 255, 255, 0.5);
    white-space: nowrap;
}

.trace-tokens,
.trace-latency,
.trace-time {
    white-space: nowrap;
    font-family: var(--font-body);
    font-size: 0.65rem;
}

.trace-latency {
    font-family: var(--font-terminal);
    font-size: 0.65rem;
}

/* Evals screen */
.mockup-eval-chart {
    display: flex;
    flex-direction: column;
    gap: 10px;
    margin-bottom: 10px;
}

.eval-metric {
    display: flex;
    align-items: center;
    gap: 10px;
}

.eval-metric-label {
    font-size: 0.65rem;
    color: rgba(255, 255, 255, 0.5);
    width: 90px;
    flex-shrink: 0;
    text-align: right;
}

.eval-bars {
    flex: 1;
    display: flex;
    gap: 3px;
    height: 18px;
}

.eval-bar {
    height: 100%;
    width: var(--val);
    border-radius: 3px;
    transition: width 0.4s ease;
}

.eval-bar-a { background: hsl(210, 50%, 65%); }
.eval-bar-b { background: hsl(35, 55%, 65%); }
.eval-bar-c { background: hsl(160, 35%, 58%); }

.eval-legend {
    display: flex;
    gap: 16px;
    justify-content: center;
    padding: 8px 0 4px;
}

.eval-legend-item {
    display: flex;
    align-items: center;
    gap: 5px;
    font-size: 0.6rem;
    color: rgba(255, 255, 255, 0.5);
}

.eval-swatch {
    display: inline-block;
    width: 8px;
    height: 8px;
    border-radius: 2px;
}

.mockup-scores-table {
    background: rgba(255, 255, 255, 0.03);
    border: 1px solid rgba(255, 255, 255, 0.06);
    border-radius: 8px;
    margin-top: 10px;
    overflow: hidden;
}

.scores-header,
.scores-row {
    display: grid;
    grid-template-columns: 1fr 64px 64px 64px;
    gap: 4px;
    padding: 6px 12px;
    align-items: center;
    font-size: 0.65rem;
}

.scores-header {
    border-bottom: 1px solid rgba(255, 255, 255, 0.06);
    color: rgba(255, 255, 255, 0.4);
    font-weight: 500;
}

.scores-row {
    color: rgba(255, 255, 255, 0.7);
    border-bottom: 1px solid rgba(255, 255, 255, 0.03);
}

.scores-row:last-child {
    border-bottom: none;
}

.score-chip {
    display: inline-block;
    padding: 1px 6px;
    border-radius: 4px;
    font-size: 0.6rem;
    font-weight: 600;
    text-align: center;
    font-variant-numeric: tabular-nums;
}

.score-green {
    background: rgba(34, 197, 94, 0.15);
    color: #4ade80;
}

.score-yellow {
    background: rgba(234, 179, 8, 0.15);
    color: #facc15;
}

.score-red {
    background: rgba(239, 68, 68, 0.15);
    color: #f87171;
}

/* Indicator dots */
.browser-indicators {
    display: flex;
    justify-content: center;
    gap: 8px;
    padding: 12px 0;
}

.browser-dot-indicator {
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.15);
    border: none;
    cursor: pointer;
    padding: 0;
    transition: background 0.2s ease;
}

.browser-dot-indicator.active {
    background: var(--accent-orange);
}

/* =========================================
   Video Carousel Section
   ========================================= */

.video-carousel-section {
    padding: 8rem 0 6rem;
    background: linear-gradient(180deg, #0e0e0e 0%, #141414 50%, var(--bg-secondary) 100%);
    position: relative;
    overflow: hidden;
}

.video-carousel-section .section-title {
    margin-bottom: 0;
}

.video-swiper-zone {
    width: 100%;
    max-width: 1400px;
    margin: 0 auto;
    position: relative;
    padding: 0 20px;
    height: 580px;
}

.video-carousel-section .swiper {
    width: 100%;
    height: 100%;
}

.video-carousel-section .swiper-wrapper {
    align-items: center;
}

.video-carousel-section .swiper-slide {
    width: 380px;
    height: 480px;
    transition: opacity 0.5s ease, filter 0.5s ease;
}

.video-carousel-section .swiper-slide:not(.swiper-slide-active) {
    opacity: 0.35;
    filter: brightness(0.45) saturate(0.5);
}

.video-carousel-section .swiper-slide-active {
    opacity: 1;
    filter: brightness(1) saturate(1);
}

.vcard {
    position: relative;
    width: 100%;
    height: 100%;
    border-radius: 20px;
    overflow: hidden;
    cursor: pointer;
    box-shadow: 0 30px 80px -20px rgba(0,0,0,0.7), 0 0 1px rgba(255,255,255,0.1);
    transition: box-shadow 0.5s ease;
}

.swiper-slide-active .vcard {
    box-shadow:
        0 40px 100px -25px rgba(0,0,0,0.8),
        0 0 0 1px rgba(255,255,255,0.1),
        0 0 60px -10px rgba(250, 205, 42, 0.25);
}

.vcard__video-wrap {
    position: absolute;
    inset: 0;
    z-index: 0;
}

.vcard__video {
    width: 100%;
    height: 100%;
    object-fit: cover;
    display: block;
}

.vcard__glass {
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    z-index: 2;
    padding: 28px 24px 24px;
    background: linear-gradient(to top,
        rgba(0,0,0,0.85) 0%,
        rgba(0,0,0,0.5) 50%,
        transparent 100%
    );
}

.vcard__category {
    font-family: var(--font-terminal);
    font-size: 10px;
    letter-spacing: 2.5px;
    text-transform: uppercase;
    color: var(--accent-orange);
    margin-bottom: 8px;
}

.vcard__title {
    font-size: 20px;
    font-weight: 600;
    line-height: 1.3;
    font-family: var(--font-body);
    color: var(--text-primary);
}

.vcard__play-ring {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%) scale(0.85);
    z-index: 3;
    width: 64px;
    height: 64px;
    border-radius: 50%;
    background: rgba(0,0,0,0.4);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border: 1.5px solid rgba(255,255,255,0.2);
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 1;
    transition: opacity 0.4s ease, transform 0.4s cubic-bezier(0.22, 1, 0.36, 1);
    pointer-events: none;
}

.vcard__play-ring svg {
    width: 22px;
    height: 22px;
    fill: white;
    margin-left: 3px;
}

.swiper-slide-active .vcard__play-ring {
    opacity: 0;
    transform: translate(-50%, -50%) scale(1.1);
}

.vcard::after {
    content: '';
    position: absolute;
    inset: 0;
    border-radius: 20px;
    z-index: 4;
    pointer-events: none;
    border: 1.5px solid transparent;
    transition: border-color 0.5s ease;
}

.swiper-slide-active .vcard::after {
    border-color: rgba(250, 205, 42, 0.2);
}

/* Mute badge — "Tap for sound" indicator on active muted card */
.vcard__mute-badge {
    position: absolute;
    top: 16px;
    left: 16px;
    z-index: 5;
    display: flex;
    align-items: center;
    gap: 6px;
    padding: 6px 12px 6px 8px;
    border-radius: 20px;
    background: rgba(0,0,0,0.6);
    backdrop-filter: blur(8px);
    -webkit-backdrop-filter: blur(8px);
    border: 1px solid rgba(255,255,255,0.15);
    cursor: pointer;
    opacity: 0;
    transition: opacity 0.3s ease;
    animation: mutePulse 2s ease-in-out infinite;
}

.swiper-slide-active .vcard[data-muted="true"] .vcard__mute-badge {
    opacity: 1;
}

.swiper-slide-active .vcard[data-muted="false"] .vcard__mute-badge {
    opacity: 0;
    pointer-events: none;
}

.vcard__mute-badge svg {
    width: 16px;
    height: 16px;
    color: white;
    flex-shrink: 0;
}

.vcard__mute-badge span {
    font-family: var(--font-body);
    font-size: 12px;
    font-weight: 500;
    color: white;
    white-space: nowrap;
}

@keyframes mutePulse {
    0%, 100% { border-color: rgba(255,255,255,0.15); }
    50% { border-color: rgba(250, 205, 42, 0.5); }
}

/* Sound toggle button (top-right) */
.vcard__sound {
    position: absolute;
    top: 16px;
    right: 16px;
    z-index: 5;
    width: 36px;
    height: 36px;
    border-radius: 50%;
    background: rgba(0,0,0,0.45);
    backdrop-filter: blur(8px);
    -webkit-backdrop-filter: blur(8px);
    border: 1px solid rgba(255,255,255,0.1);
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    transition: opacity 0.3s ease;
    cursor: pointer;
}

.swiper-slide-active .vcard__sound {
    opacity: 1;
}

.vcard__sound svg {
    width: 16px;
    height: 16px;
    color: white;
}

.vcard__sound .icon-unmuted,
.vcard__sound .icon-muted {
    display: none;
}

.vcard[data-muted="true"] .vcard__sound .icon-muted { display: block; }
.vcard[data-muted="true"] .vcard__sound .icon-unmuted { display: none; }
.vcard[data-muted="false"] .vcard__sound .icon-muted { display: none; }
.vcard[data-muted="false"] .vcard__sound .icon-unmuted { display: block; }

.vcard__progress {
    position: absolute;
    bottom: 0;
    left: 0;
    height: 3px;
    background: var(--accent-orange);
    z-index: 5;
    width: 0%;
    border-radius: 0 2px 0 0;
    transition: width 0.2s linear;
}

.video-carousel-section .swiper-pagination {
    bottom: 10px !important;
}

.video-carousel-section .swiper-pagination-bullet {
    width: 28px;
    height: 3px;
    border-radius: 2px;
    background: rgba(255,255,255,0.2);
    opacity: 1;
    transition: all 0.4s ease;
}

.video-carousel-section .swiper-pagination-bullet-active {
    width: 44px;
    background: var(--accent-orange);
}

.vid-nav-btn {
    position: absolute;
    top: 50%;
    transform: translateY(-50%);
    z-index: 10;
    width: 48px;
    height: 48px;
    border-radius: 50%;
    border: 1px solid rgba(255,255,255,0.1);
    background: rgba(255,255,255,0.04);
    backdrop-filter: blur(8px);
    -webkit-backdrop-filter: blur(8px);
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all 0.3s ease;
    color: white;
}

.vid-nav-btn:hover {
    background: rgba(255,255,255,0.1);
    border-color: rgba(255,255,255,0.2);
    transform: translateY(-50%) scale(1.08);
}

.vid-nav-btn--prev { left: 0; }
.vid-nav-btn--next { right: 0; }

.vid-nav-btn svg {
    width: 18px;
    height: 18px;
    fill: none;
    stroke: currentColor;
    stroke-width: 2;
    stroke-linecap: round;
    stroke-linejoin: round;
}

@media (max-width: 768px) {
    .video-carousel-section {
        padding: 6rem 0 4rem;
    }

    .video-swiper-zone {
        height: 480px;
    }

    .video-carousel-section .swiper-slide {
        width: 300px;
        height: 420px;
    }

    .vid-nav-btn { display: none; }
}

/* =========================================
   Footer
   ========================================= */

footer {
    border-top: 1px solid var(--border-color);
    padding: 4rem 0 2rem;
    background-color: var(--bg-secondary);
    position: relative;
}

.footer-content {
    display: flex;
    justify-content: space-between;
    margin-bottom: 3rem;
}

.footer-brand h4 {
    font-size: 1.25rem;
    margin-bottom: 0.5rem;
}

.footer-brand p {
    color: var(--text-secondary);
    font-size: 0.9rem;
}

.footer-links {
    display: flex;
    gap: 4rem;
}

.link-group h5 {
    font-size: 0.9rem;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    color: var(--text-secondary);
    margin-bottom: 1rem;
    font-family: var(--font-body);
}

.link-group ul li {
    margin-bottom: 0.75rem;
}

.link-group a {
    color: var(--text-secondary);
    font-size: 0.9rem;
}

.link-group a:hover {
    color: var(--accent-orange);
}

.copyright {
    text-align: center;
    font-size: 0.85rem;
    color: var(--text-secondary);
    padding-top: 2rem;
    border-top: 1px solid var(--border-color);
}

/* =========================================
   Legal Pages (Privacy Policy & Terms)
   ========================================= */

.legal-page {
    padding: 4rem 0 6rem;
    min-height: calc(100vh - 80px - 200px);
}

.legal-container {
    max-width: 800px;
}

.legal-page h1 {
    font-size: 2.75rem;
    margin-bottom: 0.5rem;
    color: var(--text-primary);
}

.legal-meta {
    color: var(--text-secondary);
    font-size: 0.9rem;
    margin-bottom: 3rem;
    padding-bottom: 2rem;
    border-bottom: 1px solid var(--border-color);
}

.legal-section {
    margin-bottom: 2.5rem;
}

.legal-section h2 {
    font-size: 1.5rem;
    color: var(--text-primary);
    margin-bottom: 1rem;
    font-family: var(--font-body);
    font-weight: 600;
}

.legal-section h3 {
    font-size: 1.125rem;
    color: var(--text-primary);
    margin-top: 1.5rem;
    margin-bottom: 0.75rem;
    font-family: var(--font-body);
    font-weight: 600;
}

.legal-section p {
    color: var(--text-secondary);
    font-size: 0.95rem;
    line-height: 1.8;
    margin-bottom: 1rem;
}

.legal-section ul {
    margin-bottom: 1rem;
    padding-left: 1.25rem;
}

.legal-section ul li {
    color: var(--text-secondary);
    font-size: 0.95rem;
    line-height: 1.8;
    margin-bottom: 0.5rem;
    position: relative;
    padding-left: 0.75rem;
}

.legal-section ul li::before {
    content: '';
    position: absolute;
    left: -0.75rem;
    top: 0.75em;
    width: 5px;
    height: 5px;
    background: var(--accent-orange);
    border-radius: 50%;
}

.legal-section ul.contact-list li::before {
    display: none;
}

.legal-section ul.contact-list {
    padding-left: 0;
}

.legal-section ul.contact-list li {
    padding-left: 0;
}

.legal-section a {
    color: var(--accent-orange);
    text-decoration: underline;
    text-underline-offset: 2px;
}

.legal-section a:hover {
    color: #e6bb26;
}

.legal-section strong {
    color: var(--text-primary);
    font-weight: 600;
}

/* =========================================
   Dot Matrix Effects
   ========================================= */

.dot-matrix-canvas {
    position: absolute;
    inset: 0;
    width: 100%;
    height: 100%;
    pointer-events: none;
    z-index: 0;
}

.problem-section,
.results-section {
    position: relative;
    overflow: hidden;
}

.problem-section::after {
    content: '';
    position: absolute;
    inset: 0;
    background-image:
        linear-gradient(rgba(250, 205, 42, 0.04) 1px, transparent 1px),
        linear-gradient(90deg, rgba(250, 205, 42, 0.04) 1px, transparent 1px);
    background-size: 60px 60px;
    pointer-events: none;
    z-index: 0;
    -webkit-mask-image: radial-gradient(ellipse at center, black 30%, transparent 75%);
    mask-image: radial-gradient(ellipse at center, black 30%, transparent 75%);
}

.problem-section > .container {
    position: relative;
    z-index: 1;
}

/* =========================================
   Accessibility
   ========================================= */

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

/* =========================================
   Responsive
   ========================================= */

@media (max-width: 900px) {
    .problem-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .comparison-table {
        grid-template-columns: 1fr;
    }

    .results-grid {
        max-width: 400px;
    }

    .platform-highlights {
        grid-template-columns: 1fr;
    }

    .mockup-sidebar {
        width: 44px;
        padding: 8px 4px;
    }

    .mockup-sidebar-logo span {
        display: none;
    }

    .mockup-nav-item {
        justify-content: center;
        padding: 8px;
        font-size: 0;
    }

    .mockup-nav-item svg {
        font-size: 0.78rem;
    }

    .mockup-sidebar-logo {
        justify-content: center;
        padding: 8px 0 12px;
    }

    .mockup-cards {
        grid-template-columns: repeat(2, 1fr);
    }

    .mockup-trace-row {
        grid-template-columns: 10px 1fr auto auto;
    }

    .trace-tokens,
    .trace-time {
        display: none;
    }

    .eval-metric-label {
        width: 60px;
        font-size: 0.55rem;
    }

    .scores-header,
    .scores-row {
        grid-template-columns: 1fr 48px 48px 48px;
    }
}

@media (max-width: 768px) {
    .hero-inner {
        padding-top: 4rem;
        padding-bottom: 4rem;
    }

    .problem-section,
    .core-idea-section,
    .results-section {
        padding: 6rem 0;
    }

    .yc-badge img {
        height: 18px;
    }

    .yc-badge span {
        font-size: 0.8rem;
    }

    .hero h1 {
        font-size: 2.5rem;
    }

    .hero h1 br {
        display: none;
    }

    .hero-actions {
        flex-direction: column;
        align-items: center;
        gap: 0.75rem;
    }

    .section-title {
        font-size: 2rem;
    }

    .problem-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 1rem;
    }

    .problem-card {
        height: 220px;
    }

    .core-idea-content h2 {
        font-size: 2rem;
    }

    .core-idea-content h2 br {
        display: none;
    }

    .core-pillars {
        gap: 0.75rem;
    }

    .pillar {
        padding: 1rem 1.25rem;
    }

    .pillar-divider {
        display: none;
    }

    .core-tagline {
        font-size: 1.25rem !important;
    }

    .steps-tabs {
        display: flex;
        flex-direction: column;
        gap: 0;
    }

    .steps-panels {
        padding: 1.5rem;
        margin-bottom: 1rem;
    }

    .comparison-table {
        gap: 1.5rem;
    }

    .results-grid {
        grid-template-columns: 1fr;
        max-width: 300px;
    }

    .result-value {
        font-size: 2.75rem;
    }

    .results-cta h3 {
        font-size: 1.25rem;
    }

    /* Mobile navigation */
    .mobile-menu-toggle {
        display: flex;
    }

    .nav-links {
        display: none;
        position: absolute;
        top: 100%;
        left: 0;
        right: 0;
        background: rgba(24, 24, 24, 0.98);
        backdrop-filter: blur(10px);
        flex-direction: column;
        padding: 1.5rem 2rem;
        gap: 1.5rem;
        border-bottom: 1px solid var(--border-color);
    }

    .nav-links.open {
        display: flex;
    }

    .nav-links .cta-button {
        text-align: center;
    }

    .footer-content {
        flex-direction: column;
        gap: 2rem;
    }

    .footer-links {
        flex-direction: column;
        gap: 2rem;
    }

    .legal-page {
        padding: 2rem 0 4rem;
    }

    .legal-page h1 {
        font-size: 2rem;
    }

    .legal-section h2 {
        font-size: 1.25rem;
    }

    .legal-section h3 {
        font-size: 1rem;
    }
}

@media (max-width: 480px) {
    .hero h1 {
        font-size: 2rem;
    }

    .hero p {
        font-size: 1.05rem;
    }

    .section-title {
        font-size: 1.75rem;
    }

    .core-idea-content h2 {
        font-size: 1.75rem;
    }

    .result-value {
        font-size: 2.25rem;
    }

    .tab-label {
        font-size: 0.95rem;
    }

    .steps-panels {
        padding: 1.25rem;
    }
}