:root {
    /* Light Theme Variables */
    --primary: #0d9488;
    --primary-dark: #0f766e;
    --secondary: #4f46e5;
    --bg-main: #ffffff;
    --bg-card: #f8fafc;
    --text-main: #0f172a;
    --text-muted: #64748b;
    --border-color: #e2e8f0;
    --transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    --section-gap: 6rem;
    --header-height: 5rem;
    --radius-xl: 1.5rem;
    --radius-2xl: 2.5rem;
}

[data-theme="dark"] {
    /* Dark Theme Variables */
    --bg-main: #020617;
    --bg-card: #0f172a;
    --text-main: #f8fafc;
    --text-muted: #94a3b8;
    --border-color: #1e293b;
}

body {
    font-family: "Plus Jakarta Sans", sans-serif;
    background-color: var(--bg-main);
    color: var(--text-main);
    transition: var(--transition);
    overflow-x: hidden;
}

/* Bento Grid */
.bento-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    grid-template-rows: repeat(2, 320px);
    gap: 1.5rem;
}

@media (max-width: 1024px) {
    .bento-grid {
        grid-template-columns: repeat(2, 1fr);
        grid-template-rows: repeat(4, 300px);
    }
}

@media (max-width: 640px) {
    .bento-grid {
        grid-template-columns: 1fr;
        grid-template-rows: auto;
    }
    .bento-grid > div {
        height: 300px;
    }
}

/* Glassmorphism Refined */
.glass-card {
    background: rgba(var(--bg-card-rgb, 248, 250, 252), 0.5);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border: 1px solid var(--border-color);
}

[data-theme="dark"] .glass-card {
    background: rgba(15, 23, 42, 0.5);
}

.header-glass {
    background: rgba(var(--bg-main-rgb, 255, 255, 255), 0.7);
    backdrop-filter: blur(15px);
    -webkit-backdrop-filter: blur(15px);
    border-bottom: 1px solid var(--border-color);
}

[data-theme="dark"] .header-glass {
    background: rgba(2, 6, 23, 0.7);
}

/* Premium Utilities */
.text-gradient {
    background: linear-gradient(135deg, var(--primary), var(--secondary));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.bg-main {
    background-color: var(--bg-main);
}
.bg-card {
    background-color: var(--bg-card);
}
.text-main {
    color: var(--text-main);
}
.text-muted {
    color: var(--text-muted);
}
.border-base {
    border-color: var(--border-color);
}

.section-padding {
    padding-top: var(--section-gap);
    padding-bottom: var(--section-gap);
}

.btn-primary {
    background-color: var(--primary);
    color: #fff;
    padding: 0.75rem 1.5rem;
    border-radius: 1rem;
    font-weight: 700;
    transition: var(--transition);
}

.btn-primary:hover {
    background-color: var(--primary-dark);
    transform: translateY(-2px);
    box-shadow: 0 10px 20px -10px var(--primary);
}

/* Animations */
.reveal {
    opacity: 0;
    transform: translateY(30px);
    transition: all 0.8s cubic-bezier(0.4, 0, 0.2, 1);
}

.reveal.animate-fadeIn {
    opacity: 1;
    transform: translateY(0);
}

@keyframes float {
    0% {
        transform: translateY(0px);
    }
    50% {
        transform: translateY(-15px);
    }
    100% {
        transform: translateY(0px);
    }
}

/* Mobile Bottom Nav */
.mobile-bottom-nav {
    position: fixed;
    bottom: 0px;
    left: 0;
    right: 0;
    background: rgba(var(--bg-main-rgb, 255, 255, 255), 0.8);
    backdrop-filter: blur(15px);
    border-top: 1px solid var(--border-color);
    display: none;
    z-index: 100;
    padding-bottom: env(safe-area-inset-bottom);
}

@media (max-width: 768px) {
    .mobile-bottom-nav {
        display: flex;
        justify-content: space-around;
        padding-top: 0.75rem;
    }
}

[data-theme="dark"] .mobile-bottom-nav {
    background: rgba(2, 6, 23, 0.8);
}