/* ============================================
   AR Octopus — Main Styles (iOS Liquid Glass)
   ============================================ */

:root {
    --bg-primary: #050510;
    --bg-secondary: #0a0a1f;
    --glass-bg: rgba(255, 255, 255, 0.05);
    --glass-bg-hover: rgba(255, 255, 255, 0.09);
    --glass-border: rgba(255, 255, 255, 0.08);
    --glass-border-hover: rgba(255, 255, 255, 0.15);
    --glass-blur: 24px;
    --accent-purple: #8B5CF6;
    --accent-cyan: #06B6D4;
    --accent-pink: #F43F5E;
    --accent-amber: #F59E0B;
    --text-primary: #F1F5F9;
    --text-secondary: rgba(241, 245, 249, 0.55);
    --text-tertiary: rgba(241, 245, 249, 0.35);
    --radius-sm: 10px;
    --radius-md: 14px;
    --radius-lg: 20px;
    --radius-xl: 28px;
    --radius-full: 9999px;
    --font: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
    --transition: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

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

html {
    font-size: 16px;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

body {
    font-family: var(--font);
    background: var(--bg-primary);
    color: var(--text-primary);
    line-height: 1.6;
    overflow-x: hidden;
    min-height: 100dvh;
}

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

/* Glass card */
.glass-card {
    background: var(--glass-bg);
    backdrop-filter: blur(var(--glass-blur));
    -webkit-backdrop-filter: blur(var(--glass-blur));
    border: 1px solid var(--glass-border);
    border-radius: var(--radius-lg);
    transition: background var(--transition), border-color var(--transition);
}

.glass-card:hover {
    background: var(--glass-bg-hover);
    border-color: var(--glass-border-hover);
}

/* Icons */
.icon-sm { width: 16px; height: 16px; }
.icon-md { width: 20px; height: 20px; }
.icon-lg { width: 28px; height: 28px; }
.icon-xl { width: 40px; height: 40px; }

/* Gradient text */
.gradient-text {
    background: linear-gradient(135deg, var(--accent-purple), var(--accent-cyan));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

/* ============ Landing page ============ */

.landing {
    position: relative;
    min-height: 100dvh;
    overflow: hidden;
}

/* Ambient orbs */
.ambient {
    position: fixed;
    inset: 0;
    pointer-events: none;
    z-index: 0;
}

.orb {
    position: absolute;
    border-radius: 50%;
    filter: blur(80px);
    opacity: 0.5;
}

.orb-1 {
    width: 350px; height: 350px;
    background: radial-gradient(circle, rgba(139, 92, 246, 0.4), transparent 70%);
    top: -80px; right: -60px;
    animation: orbit1 12s ease-in-out infinite;
}

.orb-2 {
    width: 280px; height: 280px;
    background: radial-gradient(circle, rgba(6, 182, 212, 0.3), transparent 70%);
    bottom: 20%; left: -80px;
    animation: orbit2 15s ease-in-out infinite;
}

.orb-3 {
    width: 200px; height: 200px;
    background: radial-gradient(circle, rgba(244, 63, 94, 0.25), transparent 70%);
    top: 50%; right: 10%;
    animation: orbit3 10s ease-in-out infinite;
}

@keyframes orbit1 {
    0%, 100% { transform: translate(0, 0) scale(1); }
    50% { transform: translate(-40px, 40px) scale(1.1); }
}

@keyframes orbit2 {
    0%, 100% { transform: translate(0, 0) scale(1); }
    50% { transform: translate(30px, -30px) scale(1.15); }
}

@keyframes orbit3 {
    0%, 100% { transform: translate(0, 0) scale(1); }
    50% { transform: translate(-20px, 20px) scale(0.9); }
}

/* Hero */
.hero {
    position: relative;
    z-index: 1;
    min-height: 100dvh;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: 60px 24px 40px;
    text-align: center;
}

.hero-content {
    max-width: 480px;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 24px;
}

.hero-badge {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 8px 18px;
    border-radius: var(--radius-full);
    font-size: 13px;
    font-weight: 500;
    color: var(--accent-cyan);
    letter-spacing: 0.5px;
    text-transform: uppercase;
}

.hero-title {
    font-size: clamp(2rem, 8vw, 3.2rem);
    font-weight: 800;
    line-height: 1.15;
    letter-spacing: -0.03em;
}

.hero-subtitle {
    font-size: 1.05rem;
    color: var(--text-secondary);
    line-height: 1.6;
    max-width: 380px;
}

/* CTA button */
.cta-button {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    padding: 16px 36px;
    background: linear-gradient(135deg, var(--accent-purple), var(--accent-cyan));
    border: none;
    border-radius: var(--radius-full);
    color: #fff;
    font-family: var(--font);
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    transition: all var(--transition);
    box-shadow:
        0 4px 24px rgba(139, 92, 246, 0.35),
        inset 0 1px 0 rgba(255, 255, 255, 0.2);
}

.cta-button:hover {
    transform: translateY(-2px);
    box-shadow:
        0 8px 32px rgba(139, 92, 246, 0.5),
        inset 0 1px 0 rgba(255, 255, 255, 0.25);
}

.cta-button:active {
    transform: translateY(0);
}

/* Octopus SVG */
.hero-visual {
    margin-top: 20px;
    width: 200px;
    height: 220px;
    opacity: 0.7;
}

.octopus-silhouette { width: 100%; height: 100%; }

.tentacle {
    transform-origin: center top;
}

.t1 { animation: sway 4s ease-in-out -0.5s infinite; }
.t2 { animation: sway 4.3s ease-in-out -1s infinite; }
.t3 { animation: sway 3.8s ease-in-out -1.5s infinite; }
.t4 { animation: sway 4.5s ease-in-out -2s infinite; }
.t5 { animation: sway 3.9s ease-in-out -0.8s infinite; }
.t6 { animation: sway 4.1s ease-in-out -1.2s infinite; }
.t7 { animation: sway 4.4s ease-in-out -0.3s infinite; }
.t8 { animation: sway 3.7s ease-in-out -1.8s infinite; }

@keyframes sway {
    0%, 100% { transform: rotate(0deg); }
    25% { transform: rotate(3deg); }
    75% { transform: rotate(-3deg); }
}

/* Sections */
.section {
    position: relative;
    z-index: 1;
    padding: 60px 24px;
    max-width: 600px;
    margin: 0 auto;
}

.section-title {
    text-align: center;
    font-size: 1.6rem;
    font-weight: 700;
    margin-bottom: 32px;
    letter-spacing: -0.02em;
}

/* Steps */
.steps-grid {
    display: flex;
    flex-direction: column;
    gap: 16px;
}

.step-card {
    padding: 24px;
    display: flex;
    flex-direction: column;
    gap: 12px;
    position: relative;
    overflow: hidden;
}

.step-card::before {
    content: '';
    position: absolute;
    top: 0; left: 0;
    width: 3px; height: 100%;
    background: linear-gradient(180deg, var(--accent-purple), var(--accent-cyan));
    border-radius: 0 2px 2px 0;
}

.step-icon-wrap {
    color: var(--accent-cyan);
}

.step-number {
    font-size: 0.75rem;
    font-weight: 700;
    color: var(--text-tertiary);
    letter-spacing: 0.1em;
}

.step-card h3 {
    font-size: 1.1rem;
    font-weight: 600;
}

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

/* Features row */
.features-row {
    display: flex;
    gap: 12px;
    justify-content: center;
    flex-wrap: wrap;
}

.feature {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 12px 18px;
    border-radius: var(--radius-full);
    font-size: 0.85rem;
    font-weight: 500;
    color: var(--text-secondary);
    white-space: nowrap;
}

.feature i { color: var(--accent-purple); }

/* Bottom CTA */
.cta-section { padding-bottom: 40px; }

.cta-card {
    padding: 40px 28px;
    text-align: center;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 16px;
}

.cta-card h2 {
    font-size: 1.4rem;
    font-weight: 700;
}

.cta-card p {
    font-size: 0.95rem;
    color: var(--text-secondary);
    max-width: 300px;
}

/* Footer */
.footer {
    position: relative;
    z-index: 1;
    text-align: center;
    padding: 24px;
    font-size: 0.8rem;
    color: var(--text-tertiary);
}

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

@media (min-width: 768px) {
    .steps-grid {
        flex-direction: row;
    }

    .step-card {
        flex: 1;
    }

    .hero-title {
        font-size: 3.2rem;
    }
}