:root {
    --primary: #4f46e5;
    --text-main: #0f172a;
    --text-muted: #475569;
    --glass-bg: rgba(255, 255, 255, 0.7);
    --glass-border: rgba(255, 255, 255, 0.8);
    --bg-main: #fcfdff;
    --highlight: #7c3aed;
}

[data-theme="dark"] {
    --primary: #a5b4fc;
    --text-main: #ffffff;
    --text-muted: #ffffff;
    --glass-bg: rgba(15, 23, 42, 0.85);
    --glass-border: rgba(255, 255, 255, 0.15);
    --bg-main: #020617;
    --highlight: #d8b4fe;
}

.highlight {
    color: var(--highlight);
    font-weight: 600;
}

html {
    scroll-behavior: smooth;
}

/* Animations */
.animate-on-load {
    animation: fadeIn 0.8s ease-out forwards;
}

@keyframes fadeIn {
    from { opacity: 0; transform: translateY(10px); }
    to { opacity: 1; transform: translateY(0); }
}

.reveal {
    transition: opacity 1.2s ease, transform 1.2s cubic-bezier(0.2, 1, 0.3, 1);
}

.reveal:not(.active) {
    opacity: 0.3;
    transform: translateY(15px);
}

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

body {
    font-family: 'Inter', sans-serif;
    background-color: var(--bg-main);
    color: var(--text-main);
    line-height: 1.5;
    overflow-x: hidden;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    transition: background-color 0.3s, color 0.3s;
}

/* Background Mesh */
.bg-mesh {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: -1;
    background: radial-gradient(circle at 10% 20%, rgba(147, 197, 253, 0.08) 0%, transparent 40%),
                radial-gradient(circle at 90% 80%, rgba(192, 132, 252, 0.08) 0%, transparent 40%);
    overflow: hidden;
}

.hero-svg-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    object-fit: cover;
    opacity: 0.6;
    pointer-events: none;
}

/* Navbar */
nav {
    height: 100px;
    display: flex;
    justify-content: center;
    align-items: center;
    width: 100%;
}

.nav-inner {
    background: var(--glass-bg);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border: 1px solid var(--glass-border);
    padding: 0.5rem 1.5rem;
    border-radius: 100px;
    display: flex;
    align-items: center;
    gap: 2rem;
    box-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.05);
}

.logo-img {
    height: 32px;
    width: auto;
}

.dark-only { display: none !important; }
.light-only { display: block !important; }
[data-theme="dark"] .light-only { display: none !important; }
[data-theme="dark"] .dark-only { display: block !important; }

.nav-links {
    display: flex;
    gap: 1.5rem;
}

.nav-links a {
    text-decoration: none;
    color: var(--text-muted);
    font-size: 0.875rem;
    font-weight: 500;
    transition: color 0.2s;
}

.nav-links a:hover { color: var(--text-main); }

/* Typography & Layout */
.container {
    max-width: 1000px;
    margin: 0 auto;
    padding: 0 1.5rem;
    width: 100%;
}

.subtitle {
    color: var(--text-muted);
    transition: color 0.3s;
}

footer {
    padding: 2rem 0;
    text-align: center;
    font-size: 0.75rem;
    color: var(--text-muted);
    border-top: 1px solid rgba(0,0,0,0.05);
    margin-top: auto;
}

@media (max-width: 640px) {
    nav { height: auto; padding: 1rem 0; }
    .nav-inner {
        flex-direction: column;
        gap: 1.5rem;
        padding: 1.5rem;
        border-radius: 1rem;
        width: 90%;
        margin: 0 auto;
    }
    .nav-links {
        display: flex;
        width: 100%;
        justify-content: center;
        flex-wrap: wrap;
        gap: 1.5rem;
        order: 2;
    }
    .logo {
        order: 1;
    }
}