/* Root variables for consistent theming */
:root {
    --bg-primary: #f8fafc;
    --bg-secondary: #ffffff;
    --text-primary: #0f172a;
    --text-secondary: #475569;
    --text-tertiary: #64748b;
    --border-color: rgba(71, 85, 105, 0.1);
    --glass-bg: rgba(255, 255, 255, 0.8);
    --glass-border: rgba(255, 255, 255, 0.2);
    --shadow: rgba(15, 23, 42, 0.08);
}

.dark {
    --bg-primary: #05060a;
    --bg-secondary: #0a0b11;
    --text-primary: #f1f5f9;
    --text-secondary: #cbd5e1;
    --text-tertiary: #94a3b8;
    --border-color: rgba(255, 255, 255, 0.06);
    --glass-bg: rgba(255, 255, 255, 0.02);
    --glass-border: rgba(255, 255, 255, 0.05);
    --shadow: rgba(0, 0, 0, 0.3);
}

/* Base styles */
body {
    background: radial-gradient(
            ellipse at top right,
            rgba(168, 85, 247, 0.08),
            transparent 25%
        ),
        var(--bg-primary);
    color: var(--text-primary);
    transition: all 0.3s ease;
    font-family: "Inter", sans-serif;
}

.text-primary {
    color: var(--text-primary);
}
.text-secondary {
    color: var(--text-secondary);
}
.text-tertiary {
    color: var(--text-tertiary);
}

/* Glass morphism */
.glass {
    background: linear-gradient(135deg, var(--glass-bg), var(--glass-bg));
    backdrop-filter: blur(12px) saturate(120%);
    border: 1px solid var(--glass-border);
    box-shadow: 0 8px 32px var(--shadow);
    transition: all 0.3s ease;
}

.glass:hover {
    box-shadow: 0 12px 48px var(--shadow);
    transform: translateY(-2px);
}

/* Enhanced neon text */
.neon-text {
    background: linear-gradient(135deg, #00f7ff, #a855f7);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    text-shadow: 0 0 20px rgba(0, 247, 255, 0.1);
}

/* Improved card hover effects */
.card-tilt {
    transform-style: preserve-3d;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

.card-tilt:hover {
    transform: translateY(-8px) rotateX(2deg) rotateY(-1deg);
}

/* Particles container */
#particles {
    position: fixed;
    inset: 0;
    z-index: 0;
    pointer-events: none;
    opacity: 0.3;
}

/* Button styles */
.btn-primary {
    background: linear-gradient(135deg, #00f7ff, #a855f7);
    color: #000;
    font-weight: 600;
    transition: all 0.3s ease;
    box-shadow: 0 4px 20px rgba(0, 247, 255, 0.2);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 30px rgba(0, 247, 255, 0.3);
}

.btn-secondary {
    border: 1px solid var(--border-color);
    color: var(--text-primary);
    transition: all 0.3s ease;
}

.btn-secondary:hover {
    background: var(--glass-bg);
    transform: translateY(-1px);
}

/* Navigation improvements */
nav {
    background: var(--glass-bg);
    backdrop-filter: blur(16px) saturate(120%);
    border: 1px solid var(--glass-border);
}

.nav-link {
    color: var(--text-secondary);
    transition: all 0.3s ease;
    position: relative;
}

.nav-link:hover {
    color: var(--text-primary);
}

.nav-link::after {
    content: "";
    position: absolute;
    bottom: -4px;
    left: 0;
    width: 0;
    height: 2px;
    background: linear-gradient(135deg, #00f7ff, #a855f7);
    transition: width 0.3s ease;
}

.nav-link:hover::after {
    width: 100%;
}

/* Enhanced mobile menu styles */
.mobile-menu-backdrop {
    backdrop-filter: blur(8px);
    background: rgba(0, 0, 0, 0.6);
}

.mobile-menu {
    background: var(--bg-secondary);
    backdrop-filter: blur(20px);
    border-left: 1px solid var(--border-color);
    box-shadow: -10px 0 30px rgba(0, 0, 0, 0.2);
    display: flex;
    flex-direction: column;
    height: 100%;
    max-height: 100vh;
    overflow: hidden;
}

.mobile-nav-item {
    position: relative;
    padding: 16px 24px;
    border-bottom: 1px solid var(--border-color);
    transition: all 0.3s ease;
    display: flex;
    align-items: center;
    gap: 12px;
}

.mobile-nav-item:hover {
    background: var(--glass-bg);
    padding-left: 32px;
}

.mobile-nav-item::before {
    content: "";
    position: absolute;
    left: 0;
    top: 0;
    bottom: 0;
    width: 3px;
    background: linear-gradient(135deg, #00f7ff, #a855f7);
    transform: scaleY(0);
    transition: transform 0.3s ease;
}

.mobile-nav-item:hover::before {
    transform: scaleY(1);
}

.mobile-nav-icon {
    width: 20px;
    height: 20px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--text-tertiary);
    transition: all 0.3s ease;
}

.mobile-nav-item:hover .mobile-nav-icon {
    color: var(--text-primary);
    transform: scale(1.1);
}

.mobile-social-item {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 12px 24px;
    color: var(--text-secondary);
    transition: all 0.3s ease;
    border-radius: 8px;
    margin: 4px 16px;
}

.mobile-social-item:hover {
    background: var(--glass-bg);
    color: var(--text-primary);
}

.mobile-menu-header {
    background: linear-gradient(135deg, var(--glass-bg), transparent);
    border-bottom: 1px solid var(--border-color);
    padding: 24px;
    flex-shrink: 0;
}

.mobile-menu nav {
    flex: 1;
    overflow-y: auto;
    -webkit-overflow-scrolling: touch;
}

/* Optional: subtle fade at bottom of scroll area */
.mobile-menu nav::after {
    content: "";
    position: sticky;
    bottom: 0;
    display: block;
    height: 30px;
    background: linear-gradient(to bottom, transparent, var(--bg-secondary));
    pointer-events: none;
}

/* Hamburger animation */
.hamburger {
    display: flex;
    flex-direction: column;
    width: 20px;
    height: 16px;
    cursor: pointer;
    transition: all 0.3s ease;
}

.hamburger span {
    display: block;
    height: 2px;
    width: 100%;
    background: var(--text-secondary);
    transition: all 0.3s ease;
    border-radius: 1px;
}

.hamburger span:nth-child(1) {
    margin-bottom: 5px;
}

.hamburger span:nth-child(2) {
    margin-bottom: 5px;
}

.hamburger.active span:nth-child(1) {
    transform: rotate(45deg) translate(5px, 5px);
}

.hamburger.active span:nth-child(2) {
    opacity: 0;
}

.hamburger.active span:nth-child(3) {
    transform: rotate(-45deg) translate(7px, -6px);
}

/* Smooth scrolling */
html {
    scroll-behavior: smooth;
}

/* Loading states */
.loading {
    opacity: 0;
    animation: fadeIn 0.6s ease-in-out forwards;
}

@keyframes fadeIn {
    to {
        opacity: 1;
    }
}

/* Slide in animation for mobile menu */
.slide-in {
    animation: slideIn 0.3s ease-out forwards;
}

.slide-out {
    animation: slideOut 0.3s ease-out forwards;
}

@keyframes slideIn {
    from {
        transform: translateX(100%);
    }
    to {
        transform: translateX(0);
    }
}

@keyframes slideOut {
    from {
        transform: translateX(0);
    }
    to {
        transform: translateX(100%);
    }
}

/* Responsive improvements */
@media (max-width: 768px) {
    .card-tilt:hover {
        transform: none;
    }

    .mobile-menu {
        width: 300px;
    }
}

@media (max-width: 480px) {
    .mobile-menu {
        width: 100vw;
    }
}