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

:root {
    --color-bg: #0a0c10;
    --color-bg-elevated: #111318;
    --color-bg-card: #15171e;
    --color-surface: #1a1d26;
    --color-border: rgba(255, 255, 255, 0.06);
    --color-border-hover: rgba(255, 255, 255, 0.12);
    --color-text: #e8e9ed;
    --color-text-muted: #8a8d97;
    --color-text-dim: #5c5f6a;
    --color-accent: #3b82f6;
    --color-accent-soft: rgba(59, 130, 246, 0.12);
    --color-accent-glow: rgba(59, 130, 246, 0.25);
    --color-cortexa: #10b981;
    --color-cortexa-soft: rgba(16, 185, 129, 0.12);
    --font-display: 'Outfit', sans-serif;
    --font-body: 'DM Sans', sans-serif;
    --container-max: 1120px;
    --section-pad: clamp(80px, 10vw, 140px);
}

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

body {
    font-family: var(--font-body);
    background: var(--color-bg);
    color: var(--color-text);
    line-height: 1.65;
    overflow-x: hidden;
}

a { color: inherit; text-decoration: none; }
img { max-width: 100%; display: block; }

.container {
    max-width: var(--container-max);
    margin: 0 auto;
    padding: 0 clamp(20px, 4vw, 48px);
}

/* ===== NAVIGATION ===== */
.navbar {
    position: fixed;
    top: 0; left: 0; right: 0;
    z-index: 1000;
    background: rgba(10, 12, 16, 0.7);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border-bottom: 1px solid var(--color-border);
    transition: background 0.3s ease;
}

.nav-container {
    max-width: var(--container-max);
    margin: 0 auto;
    padding: 0 clamp(20px, 4vw, 48px);
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 68px;
}

.nav-logo {
    font-family: var(--font-display);
    font-weight: 700;
    font-size: 1.35rem;
    letter-spacing: -0.02em;
    color: var(--color-text);
    transition: opacity 0.2s;
    display: flex;
    align-items: center;
    gap: 10px;
}

.logo-icon { flex-shrink: 0; }
.nav-logo:hover { opacity: 0.8; }

.nav-links { display: flex; gap: 32px; }

.nav-link {
    font-family: var(--font-body);
    font-size: 0.9rem;
    font-weight: 500;
    color: var(--color-text-muted);
    transition: color 0.2s;
    position: relative;
}

.nav-link:hover, .nav-link.active { color: var(--color-text); }

.nav-link.active::after {
    content: '';
    position: absolute;
    bottom: -4px; left: 0; right: 0;
    height: 2px;
    background: var(--color-accent);
    border-radius: 1px;
}

.nav-toggle {
    display: none;
    flex-direction: column;
    gap: 5px;
    background: none; border: none; cursor: pointer; padding: 4px;
}

.nav-toggle span {
    width: 22px; height: 2px;
    background: var(--color-text);
    border-radius: 2px;
    transition: all 0.3s;
}

/* ===== HERO ===== */
.hero, .cortexa-hero {
    position: relative;
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: hidden;
}

.hero-canvas {
    position: absolute;
    inset: 0;
    width: 100%;
    height: 100%;
    z-index: 0;
}

.hero-bg {
    position: absolute;
    inset: 0;
    z-index: 1;
    pointer-events: none;
}

.hero-gradient {
    position: absolute;
    inset: 0;
    background: 
        radial-gradient(ellipse 60% 50% at 50% 40%, rgba(59, 130, 246, 0.08) 0%, transparent 70%),
        radial-gradient(ellipse 40% 30% at 30% 60%, rgba(59, 130, 246, 0.04) 0%, transparent 60%);
}

.cortexa-gradient {
    background: 
        radial-gradient(ellipse 60% 50% at 50% 40%, rgba(16, 185, 129, 0.08) 0%, transparent 70%),
        radial-gradient(ellipse 40% 30% at 70% 60%, rgba(16, 185, 129, 0.04) 0%, transparent 60%) !important;
}

.hero-content {
    position: relative;
    z-index: 2;
    text-align: center;
    padding: 0 24px;
}

.hero-tagline {
    font-family: var(--font-body);
    font-size: clamp(0.9rem, 1.2vw, 1.1rem);
    font-weight: 500;
    color: var(--color-accent);
    letter-spacing: 0.08em;
    text-transform: uppercase;
    margin-bottom: 20px;
}

.hero-title {
    font-family: var(--font-display);
    font-size: clamp(3rem, 7vw, 5.5rem);
    font-weight: 800;
    letter-spacing: -0.03em;
    line-height: 1.05;
    color: var(--color-text);
}

.hero-divider {
    width: 60px; height: 3px;
    background: var(--color-accent);
    border-radius: 2px;
    margin: 28px auto 0;
}

.hero-scroll-indicator {
    position: absolute;
    bottom: 40px;
    left: 50%;
    transform: translateX(-50%);
    z-index: 2;
}

.scroll-line {
    width: 1px; height: 48px;
    background: linear-gradient(to bottom, var(--color-accent), transparent);
    animation: scrollPulse 2s ease-in-out infinite;
}

@keyframes scrollPulse {
    0%, 100% { opacity: 0.3; transform: scaleY(1); }
    50% { opacity: 1; transform: scaleY(1.2); }
}

/* ===== CORTEXA HERO ===== */
.cortexa-hero-content {
    position: relative;
    z-index: 2;
    max-width: var(--container-max);
    margin: 0 auto;
    padding: 0 clamp(20px, 4vw, 48px);
    width: 100%;
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 48px;
    align-items: center;
}

.cortexa-hero-text { max-width: 520px; }

.cortexa-hero-label {
    font-family: var(--font-body);
    font-size: clamp(0.9rem, 1.2vw, 1.1rem);
    font-weight: 500;
    color: var(--color-cortexa);
    letter-spacing: 0.06em;
    text-transform: uppercase;
    margin-bottom: 12px;
}

.cortexa-hero-title {
    font-family: var(--font-display);
    font-size: clamp(3.5rem, 8vw, 6.5rem);
    font-weight: 800;
    letter-spacing: -0.04em;
    line-height: 1;
    background: linear-gradient(135deg, var(--color-text), var(--color-cortexa));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    margin-bottom: 24px;
}

.cortexa-hero-desc {
    font-size: clamp(1.05rem, 1.4vw, 1.25rem);
    color: var(--color-text-muted);
    line-height: 1.7;
}

.cortexa-hero-visual {
    display: flex;
    justify-content: center;
    align-items: center;
}

.waveform-svg {
    width: 100%;
    max-width: 380px;
    filter: drop-shadow(0 0 40px rgba(16, 185, 129, 0.08));
}

/* ===== ABOUT SECTION ===== */
.about-section {
    padding: var(--section-pad) 0;
}

.about-grid {
    display: grid;
    grid-template-columns: 300px 1fr;
    gap: 60px;
    align-items: center;
}

.about-visual {
    display: flex;
    justify-content: center;
}

.globe-illustration {
    width: 100%;
    max-width: 300px;
}

.globe-svg {
    width: 100%;
    height: auto;
    filter: drop-shadow(0 0 30px rgba(59, 130, 246, 0.08));
    animation: gentleFloat 6s ease-in-out infinite;
}

@keyframes gentleFloat {
    0%, 100% { transform: translateY(0); }
    50% { transform: translateY(-8px); }
}

.about-lead {
    font-family: var(--font-display);
    font-size: clamp(1.25rem, 2vw, 1.65rem);
    font-weight: 600;
    line-height: 1.5;
    color: var(--color-text);
    margin-bottom: 16px;
}

.about-body {
    font-size: 1.05rem;
    color: var(--color-text-muted);
    line-height: 1.75;
}

/* ===== SECTION LABELS ===== */
.section-label {
    font-family: var(--font-body);
    font-size: 0.8rem;
    font-weight: 600;
    letter-spacing: 0.12em;
    text-transform: uppercase;
    color: var(--color-text-dim);
    margin-bottom: 40px;
}

.section-title-large {
    font-family: var(--font-display);
    font-size: clamp(2rem, 4vw, 3rem);
    font-weight: 700;
    letter-spacing: -0.02em;
    line-height: 1.15;
    margin-bottom: 56px;
}

/* ===== FLAGSHIP SECTION ===== */
.flagship-section {
    padding: 0 0 var(--section-pad);
}

.flagship-card {
    background: var(--color-bg-elevated);
    border: 1px solid var(--color-border);
    border-radius: 20px;
    padding: clamp(40px, 5vw, 64px);
    text-align: center;
    position: relative;
    overflow: hidden;
    transition: border-color 0.3s;
}

.flagship-card::before {
    content: '';
    position: absolute;
    top: 0; left: 50%;
    transform: translateX(-50%);
    width: 200px; height: 1px;
    background: linear-gradient(90deg, transparent, var(--color-accent), transparent);
}

.flagship-card:hover { border-color: var(--color-border-hover); }

.flagship-visual {
    margin-bottom: 32px;
}

.flagship-mockup {
    width: 100%;
    max-width: 500px;
    margin: 0 auto;
    filter: drop-shadow(0 4px 40px rgba(59, 130, 246, 0.06));
}

.flagship-title {
    font-family: var(--font-display);
    font-size: clamp(1.75rem, 3vw, 2.25rem);
    font-weight: 700;
    letter-spacing: -0.02em;
    margin-bottom: 16px;
}

.flagship-description {
    font-size: 1.05rem;
    color: var(--color-text-muted);
    line-height: 1.75;
    max-width: 600px;
    margin: 0 auto 32px;
}

/* ===== BUTTONS ===== */
.btn-primary {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    font-family: var(--font-body);
    font-size: 0.9rem;
    font-weight: 600;
    color: white;
    background: var(--color-accent);
    padding: 12px 28px;
    border-radius: 10px;
    transition: all 0.25s ease;
}

.btn-primary:hover {
    background: #2563eb;
    transform: translateY(-1px);
    box-shadow: 0 8px 24px var(--color-accent-glow);
}

.btn-primary svg { transition: transform 0.2s; }
.btn-primary:hover svg { transform: translateX(3px); }

.btn-large {
    padding: 16px 36px;
    font-size: 1rem;
    border-radius: 12px;
}

.btn-submit {
    font-family: var(--font-body);
    font-size: 0.9rem;
    font-weight: 600;
    color: white;
    background: var(--color-accent);
    padding: 12px 36px;
    border: none;
    border-radius: 10px;
    cursor: pointer;
    transition: all 0.25s;
    width: 100%;
}

.btn-submit:hover {
    background: #2563eb;
    box-shadow: 0 8px 24px var(--color-accent-glow);
}

/* ===== CONTACT SECTION ===== */
.contact-section {
    padding: var(--section-pad) 0;
    border-top: 1px solid var(--color-border);
}

.contact-intro {
    font-size: 1.05rem;
    color: var(--color-text-muted);
    margin-bottom: 48px;
    max-width: 560px;
}

.contact-grid {
    display: grid;
    grid-template-columns: 1fr 300px;
    gap: 64px;
    align-items: start;
}

.contact-form {
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.form-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 16px;
}

.form-group label {
    display: block;
    font-size: 0.85rem;
    font-weight: 500;
    color: var(--color-text-muted);
    margin-bottom: 6px;
}

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

.form-group input,
.form-group textarea {
    width: 100%;
    font-family: var(--font-body);
    font-size: 0.95rem;
    color: var(--color-text);
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: 10px;
    padding: 12px 16px;
    transition: border-color 0.2s, box-shadow 0.2s;
    outline: none;
}

.form-group input:focus,
.form-group textarea:focus {
    border-color: var(--color-accent);
    box-shadow: 0 0 0 3px var(--color-accent-soft);
}

.form-group textarea {
    resize: vertical;
    min-height: 120px;
}

.contact-info {
    display: flex;
    flex-direction: column;
    gap: 20px;
    padding-top: 32px;
}

.contact-detail {
    display: flex;
    align-items: center;
    gap: 12px;
    color: var(--color-text-muted);
    transition: color 0.2s;
}

.contact-detail:hover { color: var(--color-text); }
.contact-detail svg { flex-shrink: 0; opacity: 0.5; }
.contact-detail a { font-size: 0.95rem; }

.contact-map-illustration {
    margin-top: 16px;
    opacity: 0.8;
}

.contact-map-illustration svg {
    width: 100%;
    max-width: 260px;
}

/* ===== URGENCY SECTION ===== */
.urgency-section {
    padding: var(--section-pad) 0;
}

.urgency-content {
    max-width: 720px;
    margin: 0 auto;
    text-align: center;
}

.urgency-icon {
    width: 64px;
    height: 64px;
    margin: 0 auto 28px;
}

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

.urgency-title {
    font-family: var(--font-display);
    font-size: clamp(1.75rem, 3.5vw, 2.5rem);
    font-weight: 700;
    letter-spacing: -0.02em;
    line-height: 1.2;
    margin-bottom: 20px;
}

.urgency-text {
    font-size: 1.05rem;
    color: var(--color-text-muted);
    line-height: 1.75;
    margin-bottom: 48px;
}

.urgency-stat-bar {
    display: flex;
    flex-direction: column;
    gap: 20px;
    margin-bottom: 32px;
}

.stat-bar-visual {
    position: relative;
    background: var(--color-surface);
    border-radius: 8px;
    height: 48px;
    overflow: hidden;
}

.stat-bar-fill {
    position: absolute;
    top: 0; left: 0;
    height: 100%;
    background: linear-gradient(90deg, rgba(239, 68, 68, 0.3), rgba(239, 68, 68, 0.15));
    border-radius: 8px;
    width: 0;
    transition: width 1.5s ease-out;
}

.stat-bar-fill.fast {
    background: linear-gradient(90deg, rgba(16, 185, 129, 0.4), rgba(16, 185, 129, 0.15));
}

.stat-bar-label {
    position: relative;
    z-index: 1;
    display: flex;
    align-items: center;
    height: 48px;
    padding: 0 20px;
    font-size: 0.9rem;
    font-weight: 500;
    color: var(--color-text-muted);
}

.stat-bar-visual.cortexa-bar .stat-bar-label {
    color: var(--color-cortexa);
}

.urgency-source {
    font-size: 0.78rem;
    color: var(--color-text-dim);
    line-height: 1.6;
}

/* ===== FEATURES GRID ===== */
.paradigm-section {
    padding: 0 0 var(--section-pad);
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
}

.feature-card {
    background: var(--color-bg-elevated);
    border: 1px solid var(--color-border);
    border-radius: 16px;
    padding: 32px 28px;
    transition: border-color 0.3s, transform 0.3s;
}

.feature-card:hover {
    border-color: var(--color-border-hover);
    transform: translateY(-2px);
}

.feature-illustration {
    width: 100%;
    max-width: 200px;
    margin: 0 auto 20px;
}

.feature-illustration svg {
    width: 100%;
    height: auto;
}

.feature-title {
    font-family: var(--font-display);
    font-size: 1.15rem;
    font-weight: 600;
    margin-bottom: 12px;
}

.feature-desc {
    font-size: 0.92rem;
    color: var(--color-text-muted);
    line-height: 1.7;
}

/* ===== ROLES SECTION ===== */
.roles-section {
    padding: 0 0 var(--section-pad);
}

.roles-subtitle {
    font-size: 1.05rem;
    color: var(--color-text-muted);
    max-width: 640px;
    margin-top: -40px;
    margin-bottom: 56px;
    line-height: 1.7;
}

.roles-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
}

.role-card {
    background: var(--color-bg-elevated);
    border: 1px solid var(--color-border);
    border-radius: 16px;
    padding: 32px 28px;
    position: relative;
    transition: border-color 0.3s;
}

.role-card:hover { border-color: var(--color-cortexa-soft); }

.role-illustration {
    width: 80px;
    height: 80px;
    margin-bottom: 16px;
}

.role-illustration svg {
    width: 100%;
    height: 100%;
}

.role-number {
    font-family: var(--font-display);
    font-size: 2.2rem;
    font-weight: 800;
    color: var(--color-cortexa);
    opacity: 0.15;
    line-height: 1;
    margin-bottom: 12px;
}

.role-title {
    font-family: var(--font-display);
    font-size: 1.3rem;
    font-weight: 600;
    margin-bottom: 12px;
}

.role-desc {
    font-size: 0.92rem;
    color: var(--color-text-muted);
    line-height: 1.7;
}

/* ===== CTA SECTION ===== */
.cta-section {
    padding: 0 0 var(--section-pad);
}

.cta-card {
    background: linear-gradient(135deg, var(--color-bg-elevated), var(--color-bg-card));
    border: 1px solid var(--color-border);
    border-radius: 24px;
    padding: clamp(48px, 6vw, 80px);
    text-align: center;
    position: relative;
    overflow: hidden;
}

.cta-card::before {
    content: '';
    position: absolute;
    top: -1px; left: 50%;
    transform: translateX(-50%);
    width: 300px; height: 1px;
    background: linear-gradient(90deg, transparent, var(--color-cortexa), transparent);
}

.cta-visual {
    width: 100px;
    height: 100px;
    margin: 0 auto 28px;
}

.cta-visual svg {
    width: 100%;
    height: 100%;
}

.cta-title {
    font-family: var(--font-display);
    font-size: clamp(1.75rem, 3vw, 2.25rem);
    font-weight: 700;
    letter-spacing: -0.02em;
    margin-bottom: 20px;
}

.cta-text {
    font-size: 1.05rem;
    color: var(--color-text-muted);
    line-height: 1.75;
    max-width: 640px;
    margin: 0 auto 36px;
}

.cta-section .btn-primary { background: var(--color-cortexa); }
.cta-section .btn-primary:hover {
    background: #059669;
    box-shadow: 0 8px 24px rgba(16, 185, 129, 0.25);
}

/* ===== FOOTER ===== */
.footer {
    padding: 32px 0;
    border-top: 1px solid var(--color-border);
}

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

.footer-contact {
    display: flex;
    gap: 8px;
    align-items: center;
}

.footer-contact a {
    color: var(--color-text-muted);
    font-size: 0.88rem;
    transition: color 0.2s;
}

.footer-contact a:hover { color: var(--color-text); }
.footer-sep { color: var(--color-text-dim); }

.footer p {
    font-size: 0.82rem;
    color: var(--color-text-dim);
}

/* ===== CONTACT CENTERED (form commented out) ===== */
.contact-layout {
    max-width: 480px;
}

.contact-info-centered {
    display: flex;
    flex-direction: column;
    gap: 20px;
}

/* ===== OIA STATS ===== */
.oia-stats-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 20px;
    margin-bottom: 48px;
}

.oia-stat {
    background: var(--color-bg-elevated);
    border: 1px solid var(--color-border);
    border-radius: 14px;
    padding: 28px 20px;
    text-align: center;
    display: flex;
    flex-direction: column;
    gap: 4px;
}

.oia-stat-value {
    font-family: var(--font-display);
    font-size: clamp(2rem, 4vw, 2.8rem);
    font-weight: 800;
    color: #ef4444;
    line-height: 1;
}

.oia-stat-unit {
    font-size: 0.5em;
    font-weight: 600;
    opacity: 0.7;
}

.oia-stat-label {
    font-size: 0.85rem;
    font-weight: 600;
    color: var(--color-text);
    margin-top: 4px;
}

.oia-stat-sub {
    font-size: 0.78rem;
    color: var(--color-text-dim);
}

.oia-chart-section {
    margin-bottom: 40px;
}

.oia-chart-title {
    font-family: var(--font-body);
    font-size: 0.8rem;
    font-weight: 600;
    letter-spacing: 0.06em;
    text-transform: uppercase;
    color: var(--color-text-dim);
    margin-bottom: 20px;
}

.oia-chart {
    background: var(--color-bg-elevated);
    border: 1px solid var(--color-border);
    border-radius: 14px;
    padding: 24px 12px 12px;
}

.oia-trend-svg {
    width: 100%;
    height: auto;
}

.oia-languages-section {
    margin-bottom: 32px;
}

.oia-lang-bars {
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.oia-lang-row {
    display: grid;
    grid-template-columns: 90px 1fr 40px;
    gap: 12px;
    align-items: center;
}

.oia-lang-name {
    font-size: 0.85rem;
    color: var(--color-text-muted);
    text-align: right;
}

.oia-lang-bar-track {
    height: 8px;
    background: var(--color-surface);
    border-radius: 4px;
    overflow: hidden;
}

.oia-lang-bar-fill {
    height: 100%;
    border-radius: 4px;
    width: 0;
    transition: width 1.2s ease-out;
}

.oia-lang-count {
    font-family: var(--font-display);
    font-size: 0.85rem;
    font-weight: 700;
    color: var(--color-text-muted);
}

/* ===== ANIMATIONS ===== */
[data-animate] {
    opacity: 0;
    transform: translateY(24px);
    transition: opacity 0.7s ease, transform 0.7s ease;
}

[data-animate].visible {
    opacity: 1;
    transform: translateY(0);
}

/* ===== RESPONSIVE ===== */
@media (max-width: 900px) {
    .features-grid,
    .roles-grid {
        grid-template-columns: 1fr;
        max-width: 480px;
    }

    .oia-stats-grid {
        grid-template-columns: 1fr;
        max-width: 320px;
        margin-left: auto;
        margin-right: auto;
    }

    .contact-grid {
        grid-template-columns: 1fr;
        gap: 40px;
    }

    .about-grid {
        grid-template-columns: 1fr;
        gap: 40px;
        text-align: center;
    }

    .about-visual {
        order: -1;
    }

    .globe-illustration {
        max-width: 220px;
        margin: 0 auto;
    }

    .cortexa-hero-content {
        grid-template-columns: 1fr;
        text-align: center;
    }

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

    .cortexa-hero-visual {
        order: -1;
    }

    .waveform-svg {
        max-width: 300px;
    }

    .footer-content {
        flex-direction: column;
        gap: 12px;
        text-align: center;
    }
}

@media (max-width: 640px) {
    .nav-links {
        position: fixed;
        top: 68px; left: 0; right: 0;
        background: rgba(10, 12, 16, 0.95);
        backdrop-filter: blur(20px);
        flex-direction: column;
        padding: 24px;
        gap: 16px;
        border-bottom: 1px solid var(--color-border);
        transform: translateY(-100%);
        opacity: 0;
        pointer-events: none;
        transition: all 0.3s ease;
    }

    .nav-links.open {
        transform: translateY(0);
        opacity: 1;
        pointer-events: all;
    }

    .nav-toggle { display: flex; }

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

    .form-row { grid-template-columns: 1fr; }

    .footer-contact { flex-direction: column; gap: 4px; }
    .footer-sep { display: none; }
}