/* ══════════════════════════════════════════════════════════════════
   VeldAI Brand Homepage — Style System
   Premium B2B/B2C gateway with AI aesthetics
   ═══════════════════════════════════════════════════════════════ */

/* ── Reset & Base ───────────────────────────────────────────── */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

:root {
    --c-bg:        #0b1120;
    --c-surface:   #151d2f;
    --c-surface2:  #1c2640;
    --c-border:    rgba(255,255,255,0.08);
    --c-text:      #e2e8f0;
    --c-text-dim:  #94a3b8;
    --c-text-soft: #64748b;
    --c-accent:    #6c5ce7;
    --c-accent-lt: #a29bfe;
    --c-gold:      #f59e0b;
    --c-green:     #10b981;
    --radius:      16px;
    --radius-sm:   10px;
    --shadow:      0 8px 32px rgba(0,0,0,0.35);
    --font:        'Inter', -apple-system, system-ui, sans-serif;
}

html { font-size: 16px; -webkit-font-smoothing: antialiased; }
body {
    font-family: var(--font);
    background: var(--c-bg);
    color: var(--c-text);
    min-height: 100vh;
    overflow-x: hidden;
    display: flex;
    flex-direction: column;
}

/* ── Background Effects ─────────────────────────────────────── */
.bg-orb {
    position: fixed; border-radius: 50%; filter: blur(120px);
    pointer-events: none; z-index: 0; opacity: 0.6;
}
.orb-1 { width: 500px; height: 500px; top: -150px; right: -100px; background: rgba(108,92,231,0.15); }
.orb-2 { width: 400px; height: 400px; bottom: -100px; left: -100px; background: rgba(245,158,11,0.1); }

.grid-bg {
    position: fixed; top: 0; left: 0; right: 0; bottom: 0;
    background-image: 
        linear-gradient(to right, rgba(255,255,255,0.02) 1px, transparent 1px),
        linear-gradient(to bottom, rgba(255,255,255,0.02) 1px, transparent 1px);
    background-size: 40px 40px;
    pointer-events: none; z-index: 0;
    mask-image: radial-gradient(circle at center, black 30%, transparent 80%);
    -webkit-mask-image: radial-gradient(circle at center, black 30%, transparent 80%);
}

/* ── Layout ─────────────────────────────────────────────────── */
.page-shell {
    position: relative; z-index: 1;
    max-width: 900px;
    margin: 0 auto;
    padding: 0 20px;
    flex-grow: 1;
    display: flex;
    flex-direction: column;
}

/* ── Header ─────────────────────────────────────────────────── */
.site-header {
    display: flex; align-items: center; justify-content: space-between;
    padding: 24px 0; border-bottom: 1px solid rgba(255,255,255,0.05);
}
.logo { display: flex; align-items: center; gap: 10px; }
.logo-sun { font-size: 1.8rem; }
.logo-text { font-size: 1.6rem; font-weight: 800; letter-spacing: -0.5px; color: #fff; }

.nav-links a {
    color: var(--c-text-dim); text-decoration: none; font-size: 0.85rem;
    margin-left: 20px; transition: color 0.2s;
}
.nav-links a:hover { color: #fff; }

/* ── Hero ───────────────────────────────────────────────────── */
.hero-section {
    text-align: center; padding: 80px 0 60px;
    animation: fadeUp 0.8s ease-out forwards;
}

@keyframes fadeUp {
    from { opacity: 0; transform: translateY(20px); }
    to { opacity: 1; transform: translateY(0); }
}

.badge {
    display: inline-block;
    background: rgba(108,92,231,0.1); border: 1px solid rgba(108,92,231,0.3);
    color: var(--c-accent-lt); font-size: 0.8rem; font-weight: 600;
    padding: 6px 16px; border-radius: 20px; margin-bottom: 24px;
}

.hero-title {
    font-size: 3.2rem; font-weight: 800; line-height: 1.15;
    letter-spacing: -1px; color: #fff; margin-bottom: 24px;
    background: linear-gradient(135deg, #fff 40%, var(--c-text-dim));
    -webkit-background-clip: text; -webkit-text-fill-color: transparent;
}

.hero-subtitle {
    font-size: 1.15rem; color: var(--c-text-dim); line-height: 1.6;
    max-width: 600px; margin: 0 auto 40px;
}

.cta-group {
    display: flex; gap: 20px; justify-content: center; flex-wrap: wrap;
}

/* ── Buttons ────────────────────────────────────────────────── */
.btn-primary, .btn-secondary {
    display: inline-flex; align-items: center; justify-content: center; gap: 10px;
    padding: 16px 28px; border-radius: var(--radius-sm);
    font-weight: 600; font-size: 1rem; text-decoration: none;
    transition: all 0.2s; min-width: 240px;
}

.btn-primary {
    background: linear-gradient(135deg, var(--c-accent), #8b5cf6);
    color: #fff; box-shadow: 0 4px 20px rgba(108,92,231,0.3);
}
.btn-primary:hover {
    transform: translateY(-2px); box-shadow: 0 8px 28px rgba(108,92,231,0.45);
}

.btn-secondary {
    background: var(--c-surface); color: #fff;
    border: 1px solid var(--c-border);
}
.btn-secondary:hover {
    background: var(--c-surface2); border-color: rgba(255,255,255,0.15);
}

/* ── Features ───────────────────────────────────────────────── */
.features-section {
    display: grid; grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
    gap: 24px; padding: 20px 0 60px;
}

.feature-card {
    background: rgba(21, 29, 47, 0.6);
    border: 1px solid var(--c-border);
    border-radius: var(--radius);
    padding: 32px 24px;
    backdrop-filter: blur(10px);
    transition: transform 0.3s, border-color 0.3s;
}
.feature-card:hover {
    transform: translateY(-4px); border-color: rgba(108,92,231,0.3);
}

.feature-icon {
    font-size: 2.2rem; margin-bottom: 20px;
    display: inline-block; padding: 12px;
    background: rgba(255,255,255,0.03); border-radius: 12px;
}

.feature-title { font-size: 1.1rem; font-weight: 700; color: #fff; margin-bottom: 12px; }
.feature-text { font-size: 0.9rem; color: var(--c-text-dim); line-height: 1.6; }

/* ── Trust Indicators ───────────────────────────────────────── */
.trust-section {
    text-align: center; padding: 20px 0 60px;
    border-top: 1px solid rgba(255,255,255,0.05);
}

.trust-tags {
    display: flex; justify-content: center; gap: 20px; flex-wrap: wrap;
    margin-top: 40px; margin-bottom: 24px;
}

.trust-tag {
    font-size: 0.85rem; font-weight: 500; color: var(--c-text-dim);
    display: flex; align-items: center; gap: 6px;
}

.disclaimer {
    font-size: 0.75rem; color: var(--c-text-soft); line-height: 1.5;
    max-width: 700px; margin: 0 auto;
}

/* ── Footer ─────────────────────────────────────────────────── */
.site-footer {
    text-align: center; padding: 30px 20px; margin-top: auto;
    font-size: 0.8rem; color: var(--c-text-soft);
    border-top: 1px solid rgba(255,255,255,0.05);
    background: rgba(11, 17, 32, 0.8); backdrop-filter: blur(5px);
}
.site-footer a { color: var(--c-text-dim); text-decoration: none; }
.site-footer a:hover { text-decoration: underline; color: #fff; }
.footer-sep { margin: 0 12px; }

/* ── Responsive ─────────────────────────────────────────────── */
@media (max-width: 768px) {
    .hero-title { font-size: 2.4rem; }
    .hero-subtitle { font-size: 1rem; padding: 0 10px; }
    .cta-group { flex-direction: column; padding: 0 20px; }
    .btn-primary, .btn-secondary { width: 100%; }
    .trust-tags { gap: 12px; }
}