/* Base Styles and Reset */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    overflow-x: hidden;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'SF Pro Display', 'SF Pro Text', 'Helvetica Neue', Helvetica, Arial, sans-serif;
    color: var(--text-primary);
    background: var(--bg-primary);
    line-height: 1.47059;
    font-weight: 400;
    letter-spacing: -0.022em;
    overflow-x: hidden;
    position: relative;
}

body::before {
    content: "";
    position: fixed;
    inset: 0;
    pointer-events: none;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='160' height='160'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.8' numOctaves='3' stitchTiles='stitch' /%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)' opacity='0.12' /%3E%3C/svg%3E");
    mix-blend-mode: soft-light;
    opacity: 0.06;
    z-index: 0;
}

@media (prefers-color-scheme: dark) {
    body::before {
        opacity: 0.08;
    }
}

[data-theme="dark"] body::before {
    opacity: 0.08;
}

/* Typography — fluid display scale (sociail.com clamps display sizes too) */
h1 {
    font-size: clamp(2.5rem, 5.4vw, 4rem);
    line-height: 1.04;
    font-weight: 600;
    letter-spacing: -0.018em;
    margin-bottom: 8px;
}

.gradient-text {
    background: linear-gradient(135deg,
        var(--sociail-indigo),
        var(--sociail-purple),
        var(--sociail-indigo));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    filter: none;
}

.hero-subtitle {
    font-size: clamp(1.125rem, 2.2vw, 1.5rem);
    line-height: 1.4;
    font-weight: 400;
    letter-spacing: -0.002em;
    color: var(--text-primary);
    opacity: 0.84;
    margin-bottom: 20px;
    max-width: 60ch;
    margin-left: auto;
    margin-right: auto;
}

.hero-tagline {
    margin: 4px auto 0;
    color: var(--text-primary);
    font-size: clamp(1.15rem, 2vw, 1.85rem);
    font-weight: 560;
    line-height: 1.18;
    letter-spacing: -0.012em;
    max-width: 20ch;
}

.section-title {
    font-size: clamp(2.25rem, 4.4vw, 3.5rem);
    font-weight: 700;
    line-height: 1.08;
    letter-spacing: -0.018em;
    text-align: center;
    margin-bottom: 56px;
}

/* Common Components */
.feature-card {
    background: rgba(255, 255, 255, 0.78);
    backdrop-filter: blur(20px) saturate(180%);
    -webkit-backdrop-filter: blur(20px) saturate(180%);
    border-radius: 20px;
    padding: 48px 36px;
    text-align: center;
    transition: transform 0.35s var(--ease-out-smooth, cubic-bezier(0.22, 1, 0.36, 1)), box-shadow 0.35s ease, border-color 0.3s ease;
    border: 1px solid var(--border-color);
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.06);
}

@media (prefers-color-scheme: dark) {
    .feature-card {
        background: rgba(28, 28, 30, 0.62);
        box-shadow: 0 10px 30px rgba(255, 255, 255, 0.05);
    }
}

[data-theme="dark"] .feature-card {
    background: rgba(28, 28, 30, 0.62);
    box-shadow: 0 10px 30px rgba(255, 255, 255, 0.05);
}

[data-theme="light"] .feature-card {
    background: rgba(255, 255, 255, 0.78);
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.06);
}

.feature-card:hover {
    transform: translateY(-6px) scale(1.01);
    box-shadow: 0 12px 24px rgba(0, 0, 0, 0.08);
    border-color: rgba(0, 102, 255, 0.2);
}

@media (prefers-color-scheme: dark) {
    .feature-card:hover {
        box-shadow: 0 12px 24px rgba(255, 255, 255, 0.1);
    }
}

[data-theme="dark"] .feature-card:hover {
    box-shadow: 0 12px 24px rgba(255, 255, 255, 0.1);
}

.coming-soon-badge {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    background: var(--sociail-pill-bg);
    color: var(--sociail-indigo-deep);
    padding: 8px 18px;
    border-radius: 9999px;
    font-size: 13px;
    font-weight: 600;
    margin-bottom: 12px;
    letter-spacing: 0.04em;
    text-decoration: none;
    transition: transform 0.3s var(--ease-out-smooth, cubic-bezier(0.22, 1, 0.36, 1)), box-shadow 0.3s ease;
}

.coming-soon-badge:hover,
.coming-soon-badge:focus-visible {
    transform: translateY(-1px);
    box-shadow: 0 16px 34px -18px rgba(99, 102, 241, 0.45);
}

.coming-soon-badge:focus-visible {
    outline: 2px solid var(--sociail-indigo);
    outline-offset: 2px;
}

.coming-soon-badge .pill-icon {
    width: 14px;
    height: 14px;
    flex-shrink: 0;
}

.coming-soon-badge .pill-accent {
    color: var(--sociail-purple);
    font-weight: 600;
}

@media (prefers-color-scheme: dark) {
    .coming-soon-badge {
        background: var(--sociail-pill-bg-dark);
        color: var(--sociail-pill-text-dark);
    }
    .coming-soon-badge .pill-accent {
        color: #d8b4fe;
    }
}

[data-theme="dark"] .coming-soon-badge {
    background: var(--sociail-pill-bg-dark);
    color: var(--sociail-pill-text-dark);
}

[data-theme="dark"] .coming-soon-badge .pill-accent {
    color: #d8b4fe;
}

.reveal {
    opacity: 1;
    transform: none;
    transition: opacity 0.6s var(--ease-out-smooth, cubic-bezier(0.22, 1, 0.36, 1)), transform 0.6s var(--ease-out-smooth, cubic-bezier(0.22, 1, 0.36, 1));
    transition-delay: var(--reveal-delay, 0s);
}

.reveal.in-view {
    opacity: 1;
    transform: translateY(0);
}

@media (prefers-reduced-motion: reduce) {
    .reveal {
        opacity: 1 !important;
        transform: none !important;
        transition: none !important;
    }
}

/* Accessibility Utilities */
.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;
}

/* Skip-link for keyboard users (WCAG 2.4.1) — hidden until focused */
.skip-link {
    position: absolute;
    top: 8px;
    left: -9999px;
    z-index: 10000;
    padding: 10px 18px;
    background: var(--bg-primary);
    color: var(--text-primary);
    border: 2px solid var(--sociail-indigo);
    border-radius: 8px;
    font-weight: 600;
    font-size: 14px;
    text-decoration: none;
    box-shadow: 0 8px 24px rgba(0, 0, 0, 0.15);
}

.skip-link:focus {
    left: 8px;
    outline: none;
}