/* ===== RESET & BASE ===== */
*, *::before, *::after {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

/* ===== ACCESSIBILITY ===== */
.skip-nav {
    position: absolute;
    top: -100%;
    left: 1rem;
    z-index: 10000;
    padding: 0.75rem 1.5rem;
    background: var(--gold);
    color: var(--dark);
    font-weight: 700;
    font-size: 0.95rem;
    border-radius: 0 0 8px 8px;
    text-decoration: none;
    transition: top 0.2s ease;
}

.skip-nav:focus {
    top: 0;
}

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

/* Focus-visible for keyboard navigation (ADA/WCAG 2.1 AA) */
a:focus-visible,
button:focus-visible,
input:focus-visible,
select:focus-visible,
textarea:focus-visible,
[tabindex]:focus-visible {
    outline: 2px solid var(--gold);
    outline-offset: 2px;
}

:root {
    --navy: #0D2D4E;
    --slate: #1E293B;
    --dark: #0a1e33;
    --gold: #FFD700;
    --gold-hover: #E0BE00;
    --gold-glow: rgba(255, 215, 0, 0.12);
    --gold-border: rgba(255, 215, 0, 0.25);
    --text: #e0e0e0;
    --text-muted: #C0CACF;
    --text-dim: #6b7a8d;
    --surface: rgba(255, 255, 255, 0.04);
    --surface-border: rgba(255, 255, 255, 0.08);
    --radius: 10px;
    --radius-lg: 16px;
}

html {
    scroll-behavior: smooth;
    scroll-padding-top: 80px;
}

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, sans-serif;
    color: var(--text);
    background: linear-gradient(135deg, var(--dark) 0%, var(--navy) 40%, var(--slate) 100%);
    background-attachment: fixed;
    line-height: 1.6;
}

.container {
    max-width: 1120px;
    margin: 0 auto;
    padding: 0 1.5rem;
}

/* ===== HEADER ===== */
header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 100;
    padding: 1.25rem 2rem;
    background: rgba(13, 45, 78, 0.96);
    transition: background 0.3s, padding 0.3s, backdrop-filter 0.3s;
}

header.scrolled {
    background: rgba(13, 45, 78, 0.96);
    backdrop-filter: blur(12px);
    padding: 0.75rem 2rem;
    box-shadow: 0 1px 0 var(--surface-border);
}

.nav-bar {
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.logo {
    color: #fff;
    font-size: 1.6rem;
    font-weight: 700;
    letter-spacing: 0.06em;
    text-decoration: none;
}

.logo-img {
    height: 120px;
    width: auto;
    display: block;
}

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

.nav-links {
    display: flex;
    align-items: center;
    gap: 2rem;
    list-style: none;
}

.nav-links a {
    color: var(--text-muted);
    text-decoration: none;
    font-size: 0.9rem;
    font-weight: 500;
    transition: color 0.2s;
}

.nav-links a:hover {
    color: #fff;
}

/* Mobile menu toggle */
.mobile-toggle {
    display: none;
    flex-direction: column;
    gap: 5px;
    background: none;
    border: none;
    cursor: pointer;
    padding: 4px;
}

.mobile-toggle span {
    display: block;
    width: 24px;
    height: 2px;
    background: #fff;
    transition: transform 0.3s, opacity 0.3s;
}

/* ===== BUTTONS ===== */
.btn {
    display: inline-block;
    text-decoration: none;
    font-weight: 600;
    border-radius: var(--radius);
    transition: background 0.2s, transform 0.1s, box-shadow 0.2s;
    cursor: pointer;
    text-align: center;
}

.btn:active {
    transform: scale(0.97);
}

.btn-primary {
    background: var(--gold);
    color: var(--navy);
    padding: 0.85rem 2rem;
    font-size: 1rem;
}

.btn-primary:hover {
    background: var(--gold-hover);
    box-shadow: 0 4px 20px rgba(255, 215, 0, 0.25);
}

.btn-outline {
    background: transparent;
    color: var(--gold);
    padding: 0.85rem 2rem;
    font-size: 1rem;
    border: 1.5px solid var(--gold-border);
}

.btn-outline:hover {
    background: var(--gold-glow);
    border-color: var(--gold);
}

.btn-sm {
    padding: 0.5rem 1.25rem;
    font-size: 0.85rem;
    background: var(--gold);
    color: var(--navy) !important;
    border-radius: var(--radius);
}

.btn-sm:hover {
    background: var(--gold-hover);
}

.btn-lg {
    padding: 1rem 2.5rem;
    font-size: 1.05rem;
}

/* ===== SECTION SHARED ===== */
section {
    padding: 6rem 0;
}

.section-label {
    display: inline-block;
    background: var(--gold-glow);
    color: var(--gold);
    font-size: 0.78rem;
    font-weight: 600;
    letter-spacing: 0.15em;
    text-transform: uppercase;
    padding: 0.4rem 1.2rem;
    border-radius: 999px;
    border: 1px solid var(--gold-border);
    margin-bottom: 1.25rem;
}

h2 {
    font-size: 2.2rem;
    font-weight: 700;
    color: #fff;
    line-height: 1.25;
    margin-bottom: 1rem;
}

.section-sub {
    font-size: 1.1rem;
    color: var(--text-muted);
    max-width: 640px;
    line-height: 1.7;
    margin-bottom: 3rem;
}

/* ===== HERO ===== */
.hero {
    text-align: center;
    padding: 10rem 0 6rem;
    min-height: 90vh;
    display: flex;
    align-items: center;
    position: relative;
    overflow: hidden;
}

.hero-bg {
    position: absolute;
    inset: 0;
    background: url('https://images.unsplash.com/photo-1517245386807-bb43f82c33c4?auto=format&fit=crop&w=1800&q=80') center/cover no-repeat;
    opacity: 0.12;
    z-index: 0;
}

.hero-inner {
    display: flex;
    flex-direction: column;
    align-items: center;
    position: relative;
    z-index: 1;
}

.badge {
    display: inline-block;
    background: var(--gold-glow);
    color: var(--gold);
    font-size: 0.8rem;
    font-weight: 600;
    letter-spacing: 0.15em;
    text-transform: uppercase;
    padding: 0.4rem 1.2rem;
    border-radius: 999px;
    border: 1px solid var(--gold-border);
    margin-bottom: 1.5rem;
}

.hero h1 {
    font-size: clamp(2.2rem, 5vw, 3.4rem);
    font-weight: 800;
    margin-bottom: 1.25rem;
    color: #fff;
    line-height: 1.15;
    max-width: 800px;
}

.hero .tagline {
    font-size: 1.2rem;
    color: var(--text-muted);
    line-height: 1.7;
    margin-bottom: 2.5rem;
    max-width: 640px;
}

.hero-cta {
    display: flex;
    gap: 1rem;
    flex-wrap: wrap;
    justify-content: center;
}

/* ===== PHOTO BREAKS ===== */
.photo-break {
    width: 100%;
    height: 480px;
    overflow: hidden;
    position: relative;
}

.photo-break::after {
    content: '';
    position: absolute;
    inset: 0;
    background: linear-gradient(
        to bottom,
        var(--dark) 0%,
        transparent 15%,
        transparent 85%,
        var(--dark) 100%
    );
    pointer-events: none;
}

.photo-break img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    object-position: center center;
    filter: brightness(0.6) saturate(0.7);
    transition: filter 0.4s ease;
}

.photo-break:hover img {
    filter: brightness(0.7) saturate(0.85);
}

/* ===== PROBLEM ===== */
.problem {
    text-align: center;
    background: rgba(0, 0, 0, 0.15);
}

.problem-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 2rem;
    margin-top: 2.5rem;
}

.problem-card {
    background: var(--surface);
    border: 1px solid var(--surface-border);
    border-radius: var(--radius-lg);
    padding: 2.5rem 2rem;
    text-align: left;
    transition: border-color 0.3s, transform 0.2s;
}

.problem-card:hover {
    border-color: rgba(255, 215, 0, 0.15);
    transform: translateY(-2px);
}

.problem-card-header {
    display: flex;
    align-items: center;
    gap: 0.65rem;
    margin-bottom: 0.75rem;
}

.problem-icon {
    font-size: 1.35rem;
    line-height: 1;
    flex-shrink: 0;
}

.problem-card h3 {
    color: #fff;
    font-size: 1.15rem;
    font-weight: 600;
    margin: 0;
}

.problem-card p {
    color: var(--text-muted);
    font-size: 0.95rem;
    line-height: 1.65;
}

/* ===== SOLUTION / FEATURES ===== */
.solution {
    text-align: center;
}

.solution .section-sub {
    margin-left: auto;
    margin-right: auto;
}

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

.feature-card {
    background: var(--surface);
    border: 1px solid var(--surface-border);
    border-radius: var(--radius-lg);
    padding: 2.5rem;
    transition: border-color 0.3s, transform 0.2s;
}

.feature-card:hover {
    border-color: rgba(255, 215, 0, 0.2);
    transform: translateY(-2px);
}

.feature-card-header {
    display: flex;
    align-items: center;
    gap: 0.65rem;
    margin-bottom: 0.75rem;
}

.feature-icon {
    flex-shrink: 0;
    line-height: 1;
}

.feature-icon svg {
    width: 28px;
    height: 28px;
}

.feature-card h3 {
    color: #fff;
    font-size: 1.15rem;
    font-weight: 600;
    margin: 0;
}

.feature-card p {
    color: var(--text-muted);
    font-size: 0.95rem;
    line-height: 1.65;
}

/* ===== ROI ===== */
.roi {
    text-align: center;
    background: rgba(0, 0, 0, 0.15);
}

.roi .section-sub {
    margin-left: auto;
    margin-right: auto;
}

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

.roi-card {
    background: var(--surface);
    border: 1px solid var(--surface-border);
    border-radius: var(--radius-lg);
    padding: 1.5rem 1.5rem 2rem;
    transition: border-color 0.3s, transform 0.2s;
}

.roi-card:hover {
    border-color: rgba(255, 215, 0, 0.2);
    transform: translateY(-2px);
}

.roi-metric {
    font-size: 2.4rem;
    font-weight: 800;
    color: var(--gold);
    margin-bottom: 0.5rem;
}

.roi-card h3 {
    color: #fff;
    font-size: 1rem;
    font-weight: 600;
    margin-bottom: 0.75rem;
}

.roi-card p {
    color: var(--text-muted);
    font-size: 0.9rem;
    line-height: 1.6;
}

.roi-summary {
    max-width: 740px;
    margin: 0 auto;
    padding: 1.2rem 1.5rem;
    background: linear-gradient(135deg, rgba(255, 215, 0, 0.03) 0%, rgba(255, 215, 0, 0.07) 100%);
    border: 1.5px solid var(--gold-border);
    /* border-left: 3px solid var(--gold); */
    border-radius: var(--radius-lg);
    text-align: left;
}

.roi-summary p {
    font-size: 1rem;
    color: rgba(255, 255, 255, 0.92);
    line-height: 1.75;
    letter-spacing: 0.01em;
}

.roi-summary strong {
    color: var(--gold);
    font-weight: 600;
}

.summary-header {
    text-align: center;
    color: var(--gold);
    font-size: 1.05rem;
    font-weight: 600;
    margin-bottom: 0.5rem;
    letter-spacing: 0.02em;
}
}

/* ===== ONE ENGINE / BEYOND THE CLASSROOM ===== */
.one-engine {
    text-align: center;
    background: linear-gradient(180deg, rgba(255, 215, 0, 0.02) 0%, rgba(255, 215, 0, 0.06) 50%, rgba(255, 215, 0, 0.02) 100%);
    border-top: 1px solid rgba(255, 215, 0, 0.08);
    border-bottom: 1px solid rgba(255, 215, 0, 0.08);
}

.one-engine .section-sub {
    margin-left: auto;
    margin-right: auto;
}

.engine-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 1.5rem;
    margin-top: 2.5rem;
    text-align: left;
}

.engine-card {
    background: var(--surface);
    border: 1px solid var(--surface-border);
    border-radius: var(--radius-lg);
    padding: 2.25rem 1.75rem;
    display: flex;
    flex-direction: column;
    transition: border-color 0.3s, transform 0.2s;
}

.engine-card:hover {
    border-color: rgba(255, 215, 0, 0.2);
    transform: translateY(-2px);
}

.engine-card-highlight {
    background: var(--gold-glow);
    border-color: var(--gold-border);
}

.engine-card-highlight:hover {
    border-color: var(--gold);
}

.engine-card-icon {
    margin-bottom: 1.25rem;
}

.engine-card h3 {
    color: #fff;
    font-size: 1.15rem;
    font-weight: 600;
    margin-bottom: 0.6rem;
}

.engine-card p {
    color: var(--text-muted);
    font-size: 0.92rem;
    line-height: 1.65;
    flex: 1;
}

.engine-summary {
    max-width: 740px;
    margin: 2.5rem auto 0;
    padding: 1.2rem 1.5rem;
    background: linear-gradient(135deg, rgba(255, 215, 0, 0.03) 0%, rgba(255, 215, 0, 0.07) 100%);
    border: 1.5px solid var(--gold-border);
    /* border-left: 3px solid var(--gold); */
    border-radius: var(--radius-lg);
    text-align: left;
}

.engine-summary p {
    font-size: 1rem;
    color: rgba(255, 255, 255, 0.92);
    line-height: 1.75;
    letter-spacing: 0.01em;
    text-align: left;
}

.engine-summary strong {
    color: var(--gold);
    font-weight: 600;
}

/* ===== INFRASTRUCTURE VISUAL ===== */
.infra-visual {
    text-align: center;
}

.infra-visual .section-sub {
    margin-left: auto;
    margin-right: auto;
}

.infra-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 1.5rem;
    margin-top: 2.5rem;
}

.infra-card {
    background: var(--surface);
    border: 1px solid var(--surface-border);
    border-radius: var(--radius-lg);
    padding: 2.25rem 1.75rem;
    text-align: left;
    display: flex;
    flex-direction: column;
    transition: border-color 0.3s, transform 0.2s;
}

.infra-card:hover {
    transform: translateY(-2px);
}

.infra-trap:hover {
    border-color: rgba(90, 123, 148, 0.4);
}

.infra-sustain:hover,
.infra-tco:hover {
    border-color: rgba(78, 205, 196, 0.35);
}

.infra-card-icon {
    margin-bottom: 1.25rem;
}

.infra-card h3 {
    color: #fff;
    font-size: 1.15rem;
    font-weight: 600;
    margin-bottom: 0.6rem;
}

.infra-card p {
    color: var(--text-muted);
    font-size: 0.92rem;
    line-height: 1.65;
    flex: 1;
}

.infra-indicator {
    margin-top: 1.25rem;
    padding: 0.6rem 1rem;
    border-radius: var(--radius);
    font-size: 0.82rem;
    font-weight: 600;
    letter-spacing: 0.03em;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.infra-indicator-bad {
    background: rgba(90, 123, 148, 0.1);
    border: 1px solid rgba(90, 123, 148, 0.3);
    color: #7B9AB5;
}

.infra-indicator-good {
    background: rgba(78, 205, 196, 0.08);
    border: 1px solid rgba(78, 205, 196, 0.25);
    color: #4ECDC4;
}

.infra-arrow {
    font-size: 1.1rem;
    font-weight: 700;
}

/* TCO Mini Chart */
.infra-tco-chart {
    margin-top: 1.25rem;
    padding: 1rem;
    background: rgba(0, 0, 0, 0.2);
    border-radius: var(--radius);
    border: 1px solid var(--surface-border);
}

.tco-legend {
    display: flex;
    justify-content: center;
    gap: 1.5rem;
    margin-bottom: 0.75rem;
}

.tco-legend-item {
    display: flex;
    align-items: center;
    gap: 0.4rem;
    font-size: 0.72rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.08em;
}

.tco-legend-old {
    color: #7B9AB5;
}

.tco-legend-new {
    color: #4ECDC4;
}

.tco-dot {
    width: 8px;
    height: 8px;
    border-radius: 2px;
}

.tco-dot-old {
    background: #7B9AB5;
}

.tco-dot-new {
    background: #4ECDC4;
}

.tco-bars {
    display: flex;
    justify-content: center;
    gap: 1.25rem;
    height: 80px;
}

.tco-year {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 0.4rem;
}

.tco-year > span {
    font-size: 0.7rem;
    color: var(--text-dim);
    font-weight: 500;
}

.tco-bar-group {
    display: flex;
    gap: 4px;
    align-items: flex-end;
    height: 60px;
}

.tco-bar {
    width: 14px;
    border-radius: 3px 3px 0 0;
    transition: height 0.4s ease;
}

.tco-bar-old {
    background: #7B9AB5;
    opacity: 0.55;
}

.tco-bar-new {
    background: #4ECDC4;
    opacity: 0.85;
}

/* ===== FOUNDED BY ===== */
.founded {
    text-align: center;
    background: linear-gradient(180deg, rgba(255, 215, 0, 0.03) 0%, rgba(255, 215, 0, 0.06) 50%, rgba(255, 215, 0, 0.03) 100%);
    border-top: 1px solid rgba(255, 215, 0, 0.08);
    border-bottom: 1px solid rgba(255, 215, 0, 0.08);
}

.founded-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 1.25rem;
    margin-top: 2.5rem;
}

.founded-image {
    max-width: 560px;
    margin: 2rem auto 0;
    border-radius: var(--radius-lg);
    overflow: hidden;
    border: 1px solid var(--surface-border);
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.3);
}

.founded-image img {
    width: 100%;
    height: auto;
    display: block;
}

.founded-card {
    background: var(--surface);
    border: 1px solid var(--surface-border);
    border-radius: var(--radius);
    padding: 1.75rem 1.25rem;
    transition: border-color 0.3s, background 0.3s;
}

.founded-card:hover {
    border-color: var(--gold-border);
    background: rgba(255, 255, 255, 0.06);
}

.founded-icon {
    margin-bottom: 1rem;
}

.founded-card h3 {
    font-size: 0.95rem;
    font-weight: 700;
    color: #fff;
    margin-bottom: 0.6rem;
}

.founded-card p {
    font-size: 0.85rem;
    color: var(--text-muted);
    line-height: 1.55;
}

.founded-closing {
    margin-top: 2.5rem;
    font-size: 1.05rem;
    color: var(--text);
    font-weight: 500;
    line-height: 1.7;
    max-width: 700px;
    margin-left: auto;
    margin-right: auto;
}

/* ===== COMPETITIVE LANDSCAPE ===== */
.landscape {
    text-align: center;
    background: rgba(0, 0, 0, 0.15);
}

.landscape .section-sub {
    margin-left: auto;
    margin-right: auto;
}

.landscape-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 1.5rem;
    margin-top: 2.5rem;
    text-align: left;
}

.landscape-card {
    background: var(--surface);
    border: 1px solid var(--surface-border);
    border-radius: var(--radius-lg);
    padding: 2.25rem 1.75rem;
    display: flex;
    flex-direction: column;
    transition: border-color 0.3s, transform 0.2s;
    position: relative;
}

.landscape-card:hover {
    transform: translateY(-2px);
}

.landscape-cmp {
    background: var(--gold-glow);
    border-color: var(--gold-border);
}

.landscape-cmp:hover {
    border-color: var(--gold);
}

.landscape-badge {
    position: absolute;
    top: -10px;
    left: 1.75rem;
    background: var(--gold);
    color: var(--navy);
    font-size: 0.7rem;
    font-weight: 700;
    letter-spacing: 0.1em;
    text-transform: uppercase;
    padding: 0.25rem 0.85rem;
    border-radius: 999px;
}

.landscape-analogy {
    font-size: 0.78rem;
    font-weight: 600;
    letter-spacing: 0.1em;
    text-transform: uppercase;
    color: var(--text-dim);
    margin-bottom: 0.5rem;
}

.landscape-cmp .landscape-analogy {
    color: var(--gold);
    opacity: 0.8;
}

.landscape-card h3 {
    color: #fff;
    font-size: 1.15rem;
    font-weight: 600;
    margin-bottom: 0.35rem;
}

.landscape-scope {
    color: var(--text-muted);
    font-size: 0.85rem;
    font-weight: 500;
    margin-bottom: 1.25rem;
    padding-bottom: 1rem;
    border-bottom: 1px solid var(--surface-border);
}

.landscape-cmp .landscape-scope {
    border-bottom-color: var(--gold-border);
}

.landscape-card ul {
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: 0.65rem;
    flex: 1;
    margin-bottom: 1.25rem;
}

.landscape-card ul li {
    position: relative;
    padding-left: 1.4rem;
    color: var(--text-muted);
    font-size: 0.88rem;
    line-height: 1.5;
}

.landscape-cmp ul li::before {
    content: '✓';
    position: absolute;
    left: 0;
    color: var(--gold);
    font-weight: 700;
}

.landscape-card:not(.landscape-cmp) ul li::before {
    content: '–';
    position: absolute;
    left: 0;
    color: var(--text-dim);
    font-weight: 700;
}

.landscape-verdict {
    margin-top: auto;
    padding: 0.6rem 1rem;
    border-radius: var(--radius);
    font-size: 0.82rem;
    font-weight: 600;
    text-align: center;
    letter-spacing: 0.02em;
}

.landscape-verdict-good {
    background: var(--gold-glow);
    border: 1px solid var(--gold-border);
    color: var(--gold);
}

.landscape-verdict-risk {
    background: rgba(255, 255, 255, 0.03);
    border: 1px solid rgba(255, 255, 255, 0.08);
    color: var(--text-dim);
}

/* ===== DIFFERENCE ===== */
.difference {
    text-align: center;
}

.diff-columns {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 2rem;
    margin: 3rem 0 2.5rem;
    text-align: left;
}

.diff-col {
    padding: 2.5rem;
    border-radius: var(--radius-lg);
}

.diff-old {
    background: rgba(255, 255, 255, 0.03);
    border: 1px solid rgba(255, 255, 255, 0.06);
}

.diff-new {
    background: var(--gold-glow);
    border: 1px solid var(--gold-border);
}

.diff-col h3 {
    color: #fff;
    font-size: 1.15rem;
    font-weight: 600;
    margin-bottom: 1.25rem;
}

.diff-col ul {
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: 0.85rem;
}

.diff-col ul li {
    position: relative;
    padding-left: 1.5rem;
    color: var(--text-muted);
    font-size: 0.95rem;
    line-height: 1.5;
}

.diff-old ul li::before {
    content: '✕';
    position: absolute;
    left: 0;
    color: #e74c3c;
    font-weight: 700;
}

.diff-new ul li::before {
    content: '✓';
    position: absolute;
    left: 0;
    color: var(--gold);
    font-weight: 700;
}

.diff-tagline {
    font-size: 1.3rem;
    font-weight: 600;
    color: var(--gold);
    margin-top: 0.5rem;
}

/* ===== FAQ ===== */
.faq {
    text-align: center;
    background: rgba(0, 0, 0, 0.15);
}

.faq-list {
    max-width: 760px;
    margin: 2.5rem auto 0;
    text-align: left;
}

.faq-item {
    border-bottom: 1px solid var(--surface-border);
}

.faq-item:first-child {
    border-top: 1px solid var(--surface-border);
}

.faq-question {
    width: 100%;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 1rem;
    padding: 1.25rem 0.5rem;
    background: none;
    border: none;
    cursor: pointer;
    font-family: inherit;
    font-size: 1.05rem;
    font-weight: 600;
    color: #fff;
    text-align: left;
    transition: color 0.2s;
}

.faq-question:hover {
    color: var(--gold);
}

.faq-chevron {
    flex-shrink: 0;
    color: var(--text-dim);
    transition: transform 0.3s ease, color 0.2s;
}

.faq-item.open .faq-chevron {
    transform: rotate(180deg);
    color: var(--gold);
}

.faq-answer {
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.35s ease, padding 0.35s ease;
    padding: 0 0.5rem;
}

.faq-item.open .faq-answer {
    max-height: 600px;
    padding: 0 0.5rem 1.5rem;
}

.faq-answer p {
    color: var(--text-muted);
    font-size: 0.95rem;
    line-height: 1.7;
}

.faq-answer p + p {
    margin-top: 1rem;
}

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

/* ===== AUDIENCE ===== */
.audience {
    text-align: center;
    background: rgba(0, 0, 0, 0.15);
}

.audience-grid {
    display: grid;
    gap: 2rem;
    margin-top: 2.5rem;
    text-align: left;
}

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

.audience-grid-4 {
    grid-template-columns: repeat(2, 1fr);
}

.audience-sub-label {
    color: var(--gold);
    font-size: 0.8rem;
    font-weight: 600;
    letter-spacing: 0.08em;
    text-transform: uppercase;
    margin-bottom: 1rem;
    margin-top: 2rem;
    padding-bottom: 0.5rem;
    border-bottom: 1px solid rgba(255, 215, 0, 0.15);
}

.audience-grid-lower {
    grid-template-columns: repeat(3, 1fr);
    margin-top: 1.5rem;
}

.audience-card {
    background: var(--surface);
    border: 1px solid var(--surface-border);
    border-radius: var(--radius-lg);
    padding: 2.25rem;
    transition: border-color 0.3s, transform 0.2s;
}

.audience-card:hover {
    border-color: rgba(255, 215, 0, 0.15);
    transform: translateY(-2px);
}

.audience-card-icon {
    margin-bottom: 1rem;
}

.audience-card h3 {
    color: #fff;
    font-size: 1.1rem;
    font-weight: 600;
    margin-bottom: 0.5rem;
}

.audience-card p {
    color: var(--text-muted);
    font-size: 0.95rem;
    line-height: 1.6;
}

.audience-card p.card-problem {
    color: var(--text-dim);
    font-style: italic;
    margin-bottom: 0.75rem;
    padding-bottom: 0.75rem;
    border-bottom: 1px solid var(--surface-border);
}

/* Industry card accordion */
.industry-detail {
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.35s ease, padding 0.35s ease;
    padding: 0;
}

.industry-item.open .industry-detail {
    max-height: 500px;
    padding-top: 1rem;
}

.industry-detail p {
    color: var(--text-muted);
    font-size: 0.9rem;
    line-height: 1.7;
}

.industry-detail p + p {
    margin-top: 0.75rem;
}

.industry-toggle {
    display: inline-flex;
    align-items: center;
    gap: 0.4rem;
    margin-top: 0.75rem;
    background: none;
    border: none;
    cursor: pointer;
    font-family: inherit;
    font-size: 0.85rem;
    font-weight: 600;
    color: var(--gold);
    padding: 0;
    transition: opacity 0.2s;
}

.industry-toggle:hover {
    opacity: 0.75;
}

.industry-toggle-chevron {
    flex-shrink: 0;
    transition: transform 0.3s ease;
}

.industry-item.open .industry-toggle-chevron {
    transform: rotate(180deg);
}

.industry-learn-more {
    display: inline-block;
    margin-top: 1rem;
    font-size: 0.85rem;
    font-weight: 600;
    color: var(--gold);
    text-decoration: underline;
    text-underline-offset: 3px;
    transition: opacity 0.2s;
}

.industry-learn-more:hover {
    opacity: 0.75;
}

/* ===== CONTACT ===== */
.contact {
    text-align: center;
    background: rgba(0, 0, 0, 0.08);
}

.contact-inner {
    max-width: 680px;
    margin: 0 auto;
}

.contact-form {
    margin-top: 1rem;
    display: flex;
    flex-direction: column;
    gap: 1rem;
    text-align: left;
}

.form-row {
    display: flex;
    gap: 1rem;
}

.contact-form input,
.contact-form textarea {
    width: 100%;
    padding: 0.85rem 1.2rem;
    border: 1px solid var(--surface-border);
    border-radius: var(--radius);
    background: var(--surface);
    color: #fff;
    font-family: inherit;
    font-size: 0.95rem;
    transition: border-color 0.2s, box-shadow 0.2s;
}

.contact-form input::placeholder,
.contact-form textarea::placeholder {
    color: var(--text-dim);
}

.contact-form input:focus,
.contact-form textarea:focus {
    border-color: var(--gold);
    outline: 2px solid var(--gold);
    outline-offset: 1px;
}

.contact-form textarea {
    resize: vertical;
    min-height: 80px;
}

.contact-form .btn {
    align-self: center;
    margin-top: 0.5rem;
    border: none;
    font-family: inherit;
}

.contact-form .btn:disabled {
    opacity: 0.6;
    cursor: not-allowed;
}

/* Thank-you message */
.thank-you {
    text-align: center;
    padding: 3rem 1.5rem;
    animation: fadeIn 0.5s ease;
}

.thank-you-icon {
    width: 64px;
    height: 64px;
    border-radius: 50%;
    background: var(--gold);
    color: var(--navy);
    font-size: 1rem;
    color: rgba(255, 255, 255, 0.92);
    line-height: 1.75;
    letter-spacing: 0.01em;
    text-align: left;
    justify-content: center;
    margin: 0 auto 1.25rem;
}

.thank-you h3 {
    color: #fff;
    font-size: 1.5rem;
    margin-bottom: 0.75rem;
}

.thank-you p {
    color: var(--text-muted);
    font-size: 1.05rem;
    line-height: 1.7;
    max-width: 440px;
    margin: 0 auto;
}

@keyframes fadeIn {
    from { opacity: 0; transform: translateY(12px); }
    to { opacity: 1; transform: translateY(0); }
}

/* ===== FOOTER ===== */
footer {
    background: rgba(13, 45, 78, 0.98);
    border-top: 1px solid var(--surface-border);
    padding: 3rem 0 2rem;
}

.footer-inner {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 1.5rem;
    text-align: center;
}

.footer-logo-img {
    height: 72px;
    width: auto;
    display: block;
    margin: 0 auto;
}

.footer-brand p {
    color: var(--text-dim);
    font-size: 0.88rem;
    margin-top: 0.5rem;
    max-width: 360px;
}

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

.footer-links a {
    color: var(--text-muted);
    text-decoration: none;
    font-size: 0.88rem;
    transition: color 0.2s;
}

.footer-links a:hover {
    color: var(--gold);
}

.footer-copy p {
    color: var(--text-dim);
    font-size: 0.8rem;
}

/* ===== STICKY CTA BAR ===== */
.sticky-cta {
    position: fixed;
    bottom: 0;
    left: 0;
    right: 0;
    z-index: 90;
    background: rgba(10, 30, 51, 0.95);
    backdrop-filter: blur(12px);
    border-top: 1px solid var(--gold-border);
    padding: 0.75rem 0;
    transform: translateY(100%);
    opacity: 0;
    transition: transform 0.35s ease, opacity 0.35s ease;
    pointer-events: none;
}

.sticky-cta.visible {
    transform: translateY(0);
    opacity: 1;
    pointer-events: auto;
}

.sticky-cta-inner {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 1.5rem;
    flex-wrap: wrap;
}

.sticky-cta-inner p {
    color: var(--text-muted);
    font-size: 0.9rem;
    margin: 0;
}

.sticky-cta-inner .btn {
    white-space: nowrap;
}

/* ===== RESPONSIVE ===== */
@media (max-width: 960px) {
    .roi-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 768px) {
    /* Mobile nav */
    .nav-links {
        position: fixed;
        top: 0;
        right: -100%;
        width: 280px;
        height: 100vh;
        background: rgba(10, 30, 51, 0.98);
        backdrop-filter: blur(16px);
        flex-direction: column;
        padding: 5rem 2rem 2rem;
        gap: 1.5rem;
        transition: right 0.3s ease;
    }

    .nav-open .nav-links {
        right: 0;
    }

    .mobile-toggle {
        display: flex;
    }

    .nav-open .mobile-toggle span:nth-child(1) {
        transform: rotate(45deg) translate(5px, 5px);
    }
    .nav-open .mobile-toggle span:nth-child(2) {
        opacity: 0;
    }
    .nav-open .mobile-toggle span:nth-child(3) {
        transform: rotate(-45deg) translate(5px, -5px);
    }

    /* Section adjustments */
    .hero {
        padding: 8rem 0 4rem;
        min-height: auto;
    }

    .photo-break {
        height: 320px;
    }

    h2 {
        font-size: 1.75rem;
    }

    .problem-grid,
    .features-grid,
    .diff-columns,
    .audience-grid,
    .audience-grid-3,
    .audience-grid-4,
    .audience-grid-lower,
    .landscape-grid,
    .engine-grid {
        grid-template-columns: 1fr;
    }

    .founded-grid {
        grid-template-columns: 1fr 1fr;
    }

    .infra-grid {
        grid-template-columns: 1fr;
    }

    .roi-grid {
        grid-template-columns: 1fr 1fr;
    }

    .form-row {
        flex-direction: column;
    }

    section {
        padding: 4rem 0;
    }
}

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

    .founded-grid {
        grid-template-columns: 1fr;
    }

    .hero h1 {
        font-size: 1.9rem;
    }

    .footer-links {
        flex-direction: column;
        gap: 0.75rem;
    }
}


/* ==========================================
   REQUEST-A-DEMO PAGE
   ========================================== */

.demo-page {
    padding-top: 120px;
    padding-bottom: 80px;
    min-height: 80vh;
}

/* Progress bar */
.demo-progress {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0;
    margin-bottom: 3rem;
    max-width: 420px;
    margin-left: auto;
    margin-right: auto;
}

.demo-step-indicator {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 0.35rem;
    position: relative;
}

.demo-step-indicator .step-num {
    width: 36px;
    height: 36px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 700;
    font-size: 0.85rem;
    border: 2px solid var(--surface-border);
    color: var(--text-dim);
    background: var(--surface);
    transition: all 0.3s ease;
}

.demo-step-indicator .step-label {
    font-size: 0.75rem;
    color: var(--text-dim);
    font-weight: 500;
    white-space: nowrap;
    transition: color 0.3s ease;
}

.demo-step-indicator.active .step-num {
    border-color: var(--gold);
    color: var(--navy);
    background: var(--gold);
}

.demo-step-indicator.active .step-label {
    color: var(--gold);
}

.demo-step-indicator.completed .step-num {
    border-color: var(--gold);
    color: var(--navy);
    background: var(--gold);
    opacity: 0.6;
}

.demo-step-indicator.completed .step-label {
    color: var(--text-muted);
}

.demo-step-line {
    flex: 1;
    height: 2px;
    background: var(--surface-border);
    margin: 0 1rem;
    margin-bottom: 1.2rem;
}

/* Demo card */
.demo-card {
    max-width: 720px;
    margin: 0 auto;
    background: linear-gradient(135deg, rgba(255,255,255,0.04) 0%, rgba(255,255,255,0.01) 100%);
    border: 1px solid var(--surface-border);
    border-radius: 16px;
    padding: 3rem;
    animation: fadeIn 0.5s ease;
}

@keyframes fadeIn {
    from { opacity: 0; transform: translateY(12px); }
    to { opacity: 1; transform: translateY(0); }
}

.demo-card h1 {
    font-size: 2.2rem;
    font-weight: 800;
    color: #fff;
    text-align: center;
    margin-bottom: 0.5rem;
    line-height: 1.2;
}

.demo-subtext {
    text-align: center;
    color: var(--text-muted);
    font-size: 1rem;
    margin-bottom: 1.5rem;
    line-height: 1.5;
}

.demo-form-header {
    font-size: 1.15rem;
    font-weight: 600;
    color: var(--gold);
    margin-bottom: 1.5rem;
    text-align: center;
}

/* Demo form */
.demo-form {
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.demo-form .form-row {
    display: flex;
    gap: 1rem;
}

.demo-form .form-group {
    flex: 1;
    display: flex;
    flex-direction: column;
    gap: 0.3rem;
}

.demo-form .form-group.full-width {
    width: 100%;
}

.demo-form label {
    font-size: 0.8rem;
    font-weight: 600;
    color: var(--text-muted);
    letter-spacing: 0.02em;
}

.demo-form label .req {
    color: var(--gold);
}

.demo-form label .opt {
    font-weight: 400;
    color: var(--text-dim);
    font-size: 0.75rem;
}

.demo-form input,
.demo-form select,
.demo-form textarea {
    padding: 0.85rem 1.2rem;
    background: var(--surface);
    border: 1px solid var(--surface-border);
    border-radius: 8px;
    color: #fff;
    font-family: 'Inter', sans-serif;
    font-size: 0.9rem;
    transition: border-color 0.2s ease, box-shadow 0.2s ease;
}

.demo-form input:focus,
.demo-form select:focus,
.demo-form textarea:focus {
    outline: 2px solid var(--gold);
    outline-offset: 1px;
    border-color: var(--gold);
    box-shadow: 0 0 0 3px rgba(255, 215, 0, 0.1);
}

.demo-form input::placeholder,
.demo-form textarea::placeholder {
    color: var(--text-dim);
}

.demo-form select {
    appearance: none;
    background-image: url("data:image/svg+xml,%3Csvg width='10' height='6' viewBox='0 0 10 6' fill='none' xmlns='http://www.w3.org/2000/svg'%3E%3Cpath d='M1 1l4 4 4-4' stroke='%236b7a8d' stroke-width='1.5' stroke-linecap='round'/%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: right 1rem center;
    padding-right: 2.5rem;
    cursor: pointer;
}

.demo-form select option {
    background: var(--slate);
    color: #fff;
}

.demo-form textarea {
    resize: vertical;
    min-height: 80px;
}

.field-error {
    font-size: 0.75rem;
    color: #ef4444;
    min-height: 1rem;
}

/* Form actions */
.demo-form-actions {
    margin-top: 0.75rem;
    text-align: center;
}

/* Alt CTA */
.demo-alt-cta {
    margin-top: 2rem;
    text-align: center;
    padding-top: 1.5rem;
    border-top: 1px solid var(--surface-border);
}

.demo-alt-cta p {
    font-size: 0.9rem;
    color: var(--text-dim);
}

.demo-alt-cta a {
    color: var(--gold);
    text-decoration: underline;
    text-underline-offset: 2px;
}

.demo-alt-cta a:hover {
    color: #fff;
}

/* Scheduler embed */
.scheduler-embed {
    min-height: 400px;
    margin: 1.5rem 0;
    border-radius: 12px;
    overflow: hidden;
}

.scheduler-placeholder {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    text-align: center;
    padding: 3rem 2rem;
    min-height: 350px;
    color: var(--text-muted);
    gap: 0.75rem;
}

.scheduler-placeholder-icon {
    margin-bottom: 0.5rem;
    opacity: 0.6;
}

.scheduler-fallback {
    font-size: 0.8rem;
    color: var(--text-dim);
    margin-top: 1rem;
}

.scheduler-fallback a {
    color: var(--gold);
}

/* Confirmation */
.demo-confirmation {
    text-align: center;
    padding: 2rem 0;
}

.demo-confirm-icon {
    margin-bottom: 1.5rem;
    animation: fadeIn 0.6s ease;
}

.demo-confirmation h2 {
    font-size: 1.8rem;
    font-weight: 800;
    color: #fff;
    margin-bottom: 0.75rem;
}

.demo-confirmation p {
    color: var(--text-muted);
    font-size: 1rem;
    line-height: 1.6;
    max-width: 480px;
    margin: 0 auto;
}

.demo-next-steps {
    margin-top: 2rem;
    background: var(--surface);
    border: 1px solid var(--surface-border);
    border-radius: 12px;
    padding: 1.5rem 2rem;
    text-align: left;
    display: inline-block;
}

.demo-next-steps h3 {
    font-size: 0.95rem;
    font-weight: 600;
    color: var(--gold);
    margin-bottom: 0.75rem;
}

.demo-next-steps ul {
    list-style: none;
    padding: 0;
    margin: 0;
}

.demo-next-steps li {
    position: relative;
    padding-left: 1.5rem;
    font-size: 0.9rem;
    color: var(--text-muted);
    line-height: 1.8;
}

.demo-next-steps li::before {
    content: '→';
    position: absolute;
    left: 0;
    color: var(--gold);
}

/* Calendly inline widget override */
.calendly-inline-widget {
    border-radius: 12px;
    overflow: hidden;
}

/* ===== Demo page responsive ===== */
@media (max-width: 768px) {
    .demo-card {
        padding: 2rem 1.5rem;
    }

    .demo-card h1 {
        font-size: 1.7rem;
    }

    .demo-form .form-row {
        flex-direction: column;
    }

    .demo-progress {
        max-width: 300px;
    }
}

@media (max-width: 480px) {
    .demo-page {
        padding-top: 100px;
    }

    .demo-card {
        padding: 1.5rem 1rem;
        border-radius: 12px;
    }

    .demo-card h1 {
        font-size: 1.5rem;
    }

    .demo-step-indicator .step-label {
        font-size: 0.65rem;
    }
}

/* ===== COOKIE CONSENT BANNER ===== */
.cookie-banner {
    position: fixed;
    bottom: 0;
    left: 0;
    right: 0;
    z-index: 9999;
    background: var(--slate);
    border-top: 1px solid var(--gold-border);
    padding: 1rem 0;
    box-shadow: 0 -4px 24px rgba(0, 0, 0, 0.4);
}

.cookie-banner-inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 1.5rem;
    flex-wrap: wrap;
}

.cookie-banner p {
    flex: 1;
    font-size: 0.85rem;
    color: var(--text-muted);
    line-height: 1.5;
    min-width: 250px;
}

.cookie-banner p a {
    color: var(--gold);
    text-decoration: underline;
}

.cookie-actions {
    display: flex;
    gap: 0.75rem;
    flex-shrink: 0;
}

@media (max-width: 600px) {
    .cookie-banner-inner {
        flex-direction: column;
        text-align: center;
    }

    .cookie-actions {
        width: 100%;
        justify-content: center;
    }
}

/* ===== FORM PRIVACY NOTICE ===== */
.form-privacy-notice {
    font-size: 0.78rem;
    color: var(--text-dim);
    margin-top: 0.75rem;
    text-align: center;
    line-height: 1.5;
}

.form-privacy-notice a {
    color: var(--gold);
    text-decoration: underline;
}

.form-privacy-notice a:hover {
    color: var(--gold-hover);
}

/* ===== LEGAL / PRIVACY PAGE ===== */
.legal-page {
    padding-top: 120px;
    padding-bottom: 4rem;
}

.legal-page h1 {
    font-size: 2.2rem;
    font-weight: 800;
    color: #fff;
    margin-bottom: 0.5rem;
}

.legal-updated {
    font-size: 0.85rem;
    color: var(--text-dim);
    margin-bottom: 2.5rem;
}

.legal-content h2 {
    font-size: 1.3rem;
    font-weight: 700;
    color: #fff;
    margin-top: 2.5rem;
    margin-bottom: 0.75rem;
    padding-bottom: 0.4rem;
    border-bottom: 1px solid var(--surface-border);
}

.legal-content h3 {
    font-size: 1.05rem;
    font-weight: 600;
    color: var(--text);
    margin-top: 1.5rem;
    margin-bottom: 0.5rem;
}

.legal-content p {
    color: var(--text-muted);
    line-height: 1.8;
    margin-bottom: 1rem;
}

.legal-content ul {
    list-style: disc;
    padding-left: 1.5rem;
    margin-bottom: 1rem;
}

.legal-content ul li {
    color: var(--text-muted);
    line-height: 1.8;
    margin-bottom: 0.3rem;
}

.legal-content a {
    color: var(--gold);
    text-decoration: underline;
}

.legal-content a:hover {
    color: var(--gold-hover);
}

.legal-content strong {
    color: var(--text);
}