:root {
    --bg: #f4f7fb;
    --ink: #0f172a;
    --muted: #475569;
    --card: rgba(255, 255, 255, 0.78);
    --border: rgba(15, 23, 42, 0.08);
    --accent: #3b82f6;
    --accent-2: #f97316;
}
.dark {
    --bg: #0b101a;
    --ink: #e5e7eb;
    --muted: #94a3b8;
    --card: rgba(17, 24, 39, 0.68);
    --border: rgba(255, 255, 255, 0.08);
    --accent: #60a5fa;
    --accent-2: #fb923c;
}

body {
    background: var(--bg);
    color: var(--ink);
}

.bg-mesh {
    background:
        radial-gradient(1200px 600px at 10% -10%, rgba(59, 130, 246, 0.22), transparent 60%),
        radial-gradient(900px 520px at 95% 12%, rgba(249, 115, 22, 0.18), transparent 55%),
        radial-gradient(900px 520px at 40% 90%, rgba(14, 165, 233, 0.16), transparent 60%);
    animation: mesh-shift 26s ease-in-out infinite;
}
.dark .bg-mesh {
    background:
        radial-gradient(1200px 600px at 10% -10%, rgba(59, 130, 246, 0.18), transparent 60%),
        radial-gradient(900px 520px at 95% 12%, rgba(251, 146, 60, 0.18), transparent 55%),
        radial-gradient(900px 520px at 40% 90%, rgba(96, 165, 250, 0.12), transparent 60%);
}
.noise {
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='160' height='160' viewBox='0 0 160 160'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='.8' numOctaves='2' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='160' height='160' filter='url(%23n)' opacity='.22'/%3E%3C/svg%3E");
    opacity: 0.35;
    mix-blend-mode: soft-light;
}

.text-ink {
    color: var(--ink);
}
.text-muted {
    color: var(--muted);
}

.nav-shell {
    background: rgba(255, 255, 255, 0.75);
    backdrop-filter: blur(18px);
    border: 1px solid rgba(255, 255, 255, 0.6);
    box-shadow: 0 10px 30px rgba(15, 23, 42, 0.08);
    position: relative;
}
.dark .nav-shell {
    background: rgba(15, 23, 42, 0.68);
    border: 1px solid rgba(255, 255, 255, 0.08);
    box-shadow: 0 10px 30px rgba(2, 6, 23, 0.5);
}
.nav-link {
    padding: 0.35rem 0.75rem;
    border-radius: 999px;
    transition: color 0.2s ease, background 0.2s ease;
}
.nav-link:hover {
    color: var(--ink);
    background: rgba(59, 130, 246, 0.1);
}
.dark .nav-link:hover {
    background: rgba(59, 130, 246, 0.18);
}

.card {
    background: var(--card);
    border: 1px solid var(--border);
    box-shadow: 0 18px 45px rgba(15, 23, 42, 0.12);
    transition: transform 0.35s ease, box-shadow 0.35s ease;
}
.card:hover {
    transform: translateY(-4px);
    box-shadow: 0 24px 55px rgba(15, 23, 42, 0.18);
}

.feature-frame {
    background: linear-gradient(120deg, rgba(59, 130, 246, 0.5), rgba(249, 115, 22, 0.35), rgba(37, 99, 235, 0.4));
    padding: 1px;
    border-radius: 24px;
}
.feature-inner {
    background: var(--card);
    border-radius: 24px;
    border: 1px solid var(--border);
}
.glow-shell {
    position: relative;
    z-index: 1;
}
.glow-shell::before {
    content: "";
    position: absolute;
    inset: -14px;
    border-radius: 32px;
    background: radial-gradient(circle at 20% 20%, rgba(59, 130, 246, 0.25), transparent 60%),
                radial-gradient(circle at 80% 0%, rgba(249, 115, 22, 0.2), transparent 55%);
    filter: blur(12px);
    z-index: -1;
    opacity: 0.85;
    animation: halo-pulse 10s ease-in-out infinite;
}
.dark .glow-shell::before {
    background: radial-gradient(circle at 20% 20%, rgba(96, 165, 250, 0.2), transparent 60%),
                radial-gradient(circle at 80% 0%, rgba(251, 146, 60, 0.2), transparent 55%);
}

.btn-primary {
    background: linear-gradient(135deg, #f97316, #fb923c);
    color: #fff;
    box-shadow: 0 12px 30px rgba(249, 115, 22, 0.28);
    transition: transform 0.25s ease, box-shadow 0.25s ease;
}
.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 16px 36px rgba(249, 115, 22, 0.35);
}
.btn-ghost {
    background: rgba(255, 255, 255, 0.65);
    border: 1px solid var(--border);
    color: var(--ink);
    transition: transform 0.25s ease, border 0.25s ease;
}
.dark .btn-ghost {
    background: rgba(15, 23, 42, 0.65);
}
.btn-ghost:hover {
    transform: translateY(-2px);
    border-color: rgba(59, 130, 246, 0.35);
}

.tag {
    border: 1px solid rgba(59, 130, 246, 0.25);
    background: rgba(59, 130, 246, 0.08);
    color: var(--ink);
}
.dark .tag {
    border: 1px solid rgba(96, 165, 250, 0.25);
    background: rgba(96, 165, 250, 0.08);
}

.display-title {
    letter-spacing: 0.02em;
}
.text-gradient {
    background: linear-gradient(120deg, var(--accent), var(--accent-2), var(--accent));
    background-size: 200% auto;
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.bg-dots {
    background-image: radial-gradient(rgba(59, 130, 246, 0.22) 1.2px, transparent 0);
    background-size: 34px 34px;
    opacity: 0.45;
    animation: float-dots 16s ease-in-out infinite;
}
.bg-dots-2 {
    background-image: radial-gradient(rgba(249, 115, 22, 0.18) 1.6px, transparent 0);
    background-size: 56px 56px;
    opacity: 0.28;
    filter: blur(0.3px);
    animation: float-dots-2 22s ease-in-out infinite;
}
.dark .bg-dots {
    background-image: radial-gradient(rgba(96, 165, 250, 0.2) 1.2px, transparent 0);
}
.dark .bg-dots-2 {
    background-image: radial-gradient(rgba(251, 146, 60, 0.2) 1.6px, transparent 0);
}

a:focus-visible,
button:focus-visible {
    outline: 2px solid rgba(59, 130, 246, 0.6);
    outline-offset: 3px;
}
.dark a:focus-visible,
.dark button:focus-visible {
    outline-color: rgba(96, 165, 250, 0.6);
}

@media (prefers-reduced-motion: reduce) {
    html {
        scroll-behavior: auto;
    }
    .bg-mesh,
    .bg-dots,
    .bg-dots-2,
    .glow-orb,
    .glow-shell::before {
        animation: none !important;
    }
}

.glow-orb {
    border-radius: 999px;
    filter: blur(40px);
    opacity: 0.55;
    animation: orb-drift 18s ease-in-out infinite;
}
.glow-orb--a {
    background: radial-gradient(circle, rgba(59, 130, 246, 0.5), transparent 65%);
}
.glow-orb--b {
    background: radial-gradient(circle, rgba(249, 115, 22, 0.45), transparent 65%);
    animation-duration: 24s;
}

@keyframes float-dots {
    0% { transform: translate3d(0, 0, 0); }
    50% { transform: translate3d(14px, 20px, 0); }
    100% { transform: translate3d(0, 0, 0); }
}
@keyframes float-dots-2 {
    0% { transform: translate3d(0, 0, 0) scale(1); }
    50% { transform: translate3d(-18px, 12px, 0) scale(1.02); }
    100% { transform: translate3d(0, 0, 0) scale(1); }
}
@keyframes mesh-shift {
    0% { background-position: 0% 0%, 100% 0%, 50% 100%; }
    50% { background-position: 10% 10%, 85% 5%, 45% 90%; }
    100% { background-position: 0% 0%, 100% 0%, 50% 100%; }
}
@keyframes halo-pulse {
    0% { opacity: 0.6; transform: scale(0.98); }
    50% { opacity: 0.9; transform: scale(1.02); }
    100% { opacity: 0.6; transform: scale(0.98); }
}
@keyframes orb-drift {
    0% { transform: translate3d(0, 0, 0) scale(1); }
    50% { transform: translate3d(24px, -18px, 0) scale(1.05); }
    100% { transform: translate3d(0, 0, 0) scale(1); }
}