:root {
    /* Dark Theme Base Palette - Rich & Deep */
    --bg-primary: #020617;
    /* Absolute Deep Slate */
    --bg-secondary: #0F172A;
    /* Slate 900 */
    --bg-tertiary: #1E293B;
    /* Slate 800 */

    /* Surface Colors */
    --surface: rgba(15, 23, 42, 0.6);
    --surface-border: rgba(255, 255, 255, 0.06);
    --surface-border-highlight: rgba(255, 255, 255, 0.1);

    /* Text Colors */
    --text-primary: #F8FAFC;
    --text-secondary: #94A3B8;
    --text-tertiary: #64748B;

    /* ... other vars ... */
}

/* === ULTRA MODERN DESIGN SYSTEM === */
/* Glassmorphism, Neon Glows, and Fluid Typography */

/* === RESET & BASE === */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

/* === BASE STYLES & TEXTURE === */
body {
    font-family: var(--font-sans);
    background-color: var(--bg-primary);
    color: var(--text-primary);
    line-height: 1.6;
    overflow-x: hidden;
    /* Static Noise Texture */
    background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 200 200' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='noiseFilter'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.65' numOctaves='3' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23noiseFilter)' opacity='0.03'/%3E%3C/svg%3E"),
        radial-gradient(circle at 50% 0%, rgba(124, 58, 237, 0.08), transparent 60%);
    background-attachment: fixed;
    min-height: 100vh;
}

/* === TYPOGRAPHY === */
h1,
h2,
h3,
h4,
h5,
h6 {
    font-family: var(--font-heading);
    color: var(--text-primary);
    font-weight: 700;
    line-height: 1.1;
    letter-spacing: -0.025em;
    margin-bottom: var(--space-lg);
}

h1 {
    font-size: clamp(2.5rem, 5vw + 1rem, 4.5rem);
    background: linear-gradient(135deg, var(--text-primary) 0%, var(--text-secondary) 100%);
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
    text-shadow: var(--glow-text);
}

.section-title {
    background: linear-gradient(135deg, #fff 0%, #a1a1aa 100%);
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
    position: relative;
    display: inline-block;
}

h2 {
    font-size: clamp(2rem, 4vw + 1rem, 3.5rem);
}

h3 {
    font-size: clamp(1.75rem, 3vw + 1rem, 2.75rem);
    color: var(--text-secondary);
}

h4 {
    font-size: 1.5rem;
}

h5 {
    font-size: 1.25rem;
}

h6 {
    font-size: 1rem;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    color: var(--accent-cyan);
}

p {
    margin-bottom: var(--space-md);
    color: var(--text-secondary);
    font-size: 1.125rem;
    max-width: 65ch;
}

.lead {
    font-size: 1.5rem;
    font-weight: 300;
    line-height: 1.6;
    color: var(--text-tertiary);
}

/* === LAYOUT === */
.main-content {
    min-height: 100vh;
    padding-top: 100px;
    position: relative;
    z-index: var(--z-base);
}

.container {
    width: 100%;
    margin-right: auto;
    margin-left: auto;
    padding-right: var(--space-lg);
    padding-left: var(--space-lg);
    max-width: 1400px;
}

section {
    padding: var(--space-xl) 0;
    position: relative;
}

/* === GLASSMORPHISM & CARDS === */
.glass-panel {
    background: rgba(30, 41, 59, 0.4);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border: 1px solid var(--surface-border);
    box-shadow: var(--shadow-lg);
}

.card {
    background: var(--surface);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border: 1px solid var(--border);
    border-radius: var(--radius-xl);
    padding: var(--space-xl);
    transition: all var(--transition-base);
    position: relative;
    overflow: hidden;
    box-shadow: var(--shadow-md);
}

.card::before {
    content: '';
    position: absolute;
    inset: 0;
    background: linear-gradient(180deg, rgba(255, 255, 255, 0.05), transparent);
    opacity: 0;
    transition: opacity var(--transition-base);
}

.card:hover {
    transform: translateY(-5px) scale(1.01);
    box-shadow: var(--shadow-xl), var(--glow-primary);
    border-color: var(--primary-light);
}

.card:hover::before {
    opacity: 1;
}

/* === BUTTONS === */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: var(--space-sm);
    padding: var(--space-sm) var(--space-xl);
    font-weight: 600;
    font-size: 1rem;
    border-radius: var(--radius-lg);
    transition: all var(--transition-base);
    cursor: pointer;
    text-decoration: none;
    border: none;
    position: relative;
    overflow: hidden;
    z-index: 1;
}

.btn-primary {
    background: var(--primary);
    color: white;
    box-shadow: var(--shadow-primary);
}

.btn-primary::after {
    content: '';
    position: absolute;
    inset: 0;
    background: linear-gradient(135deg, rgba(255, 255, 255, 0.2) 0%, transparent 100%);
    opacity: 0;
    transition: opacity var(--transition-base);
}

.btn-primary:hover {
    transform: none;
    background: var(--primary-hover);
}

.btn-primary:hover::after {
    opacity: 1;
}

/* === PREMIUM BUTTONS === */
.btn-premium {
    padding: 0.75rem 1.5rem;
    font-weight: 600;
    font-size: 0.95rem;
    border-radius: var(--radius-md);
    transition: all 0.2s ease;
    text-decoration: none;
    display: inline-flex;
    align-items: center;
    justify-content: center;
}

.btn-primary-premium {
    background: #F8FAFC;
    color: #0F172A;
    border: 1px solid #F8FAFC;
}

.btn-primary-premium:hover {
    background: #E2E8F0;
    border-color: #E2E8F0;
    color: #0F172A;
}

.btn-outline-premium {
    background: transparent;
    color: var(--text-primary);
    border: 1px solid rgba(255, 255, 255, 0.15);
}

.btn-outline-premium:hover {
    background: rgba(255, 255, 255, 0.05);
    border-color: rgba(255, 255, 255, 0.3);
    color: var(--text-primary);
}

/* === SCROLLBAR === */

/* === SCROLLBAR === */
::-webkit-scrollbar {
    width: 8px;
    height: 8px;
}

::-webkit-scrollbar-track {
    background: var(--bg-primary);
}

::-webkit-scrollbar-thumb {
    background: var(--bg-secondary);
    border-radius: var(--radius-full);
}

::-webkit-scrollbar-thumb:hover {
    background: var(--primary);
}

/* === UTILITIES === */
.text-gradient {
    background: var(--gradient-text);
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
}

.text-cyan {
    color: var(--accent-cyan) !important;
}

.text-pink {
    color: var(--accent-pink) !important;
}

.bg-glass {
    background: rgba(15, 23, 42, 0.6);
    backdrop-filter: blur(10px);
}

/* === BENTO GRID UTILITIES === */
.bento-grid {
    display: grid;
    grid-template-columns: repeat(1, 1fr);
    gap: var(--space-lg);
}

@media (min-width: 768px) {
    .bento-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .bento-span-2 {
        grid-column: span 2;
    }
}

@media (min-width: 1024px) {
    .bento-grid {
        grid-template-columns: repeat(3, 1fr);
    }

    .bento-span-3 {
        grid-column: span 3;
    }
}

.bento-card {
    background: var(--surface);
    border: 1px solid var(--surface-border);
    border-radius: var(--radius-xl);
    padding: var(--space-xl);
    position: relative;
    overflow: hidden;
    display: flex;
    flex-direction: column;
    height: 100%;
}

/* Top Light Effect for Bento Cards */
.bento-card::after {
    content: '';
    position: absolute;
    inset: 0;
    border-radius: var(--radius-xl);
    padding: 1px;
    background: linear-gradient(180deg, rgba(255, 255, 255, 0.1), transparent 80%);
    -webkit-mask: linear-gradient(#fff 0 0) content-box, linear-gradient(#fff 0 0);
    -webkit-mask-composite: xor;
    mask-composite: exclude;
    pointer-events: none;
}

/* === RESPONSIVE === */
@media (max-width: 768px) {
    :root {
        --space-4xl: 4rem;
    }

    .container {
        padding: 0 var(--space-md);
    }
}