/* ===== CSS Variables ===== */
:root {
    --bg-dark: #0a0f1e;
    --bg-darker: #050813;
    --bg-card: rgba(18, 25, 45, 0.8);
    --primary-glow: #00f0ff;
    --secondary-glow: #a020f0;
    --text-light: #e0e0e0;
    --text-muted: #a0a8b8;
    --border-glow: rgba(0, 240, 255, 0.2);
    --gradient-1: linear-gradient(135deg, #0b1a2e, #0e0f1f);
    --gradient-2: linear-gradient(145deg, #162b40, #0b1a2e);
    --shadow: 0 8px 32px rgba(0, 240, 255, 0.1);
}

[data-theme="light"] .form-control,
[data-theme="light"] .form-select {
    background: rgba(255, 255, 255, 0.9) !important;
    color: #1e293b !important;
    border: 1px solid #e2e8f0 !important;
}

[data-theme="light"] .form-control:focus,
[data-theme="light"] .form-select:focus {
    background: #ffffff !important;
    color: #1e293b !important;
    border-color: #0066cc !important;
    box-shadow: 0 0 0 0.2rem rgba(0, 102, 204, 0.25) !important;
}

[data-theme="light"] .form-label {
    color: #1e293b !important;
}

[data-theme="light"] .text-light {
    color: #1e293b !important;
}

[data-theme="light"] .glass-card {
    background: rgba(255, 255, 255, 0.95) !important;
    border: 1px solid #e2e8f0 !important;
}

[data-theme="light"] .table {
    color: #1e293b !important;
}

[data-theme="light"] .table thead th {
    background: #f8fafc !important;
    color: #1e293b !important;
    border-color: #e2e8f0 !important;
}

[data-theme="light"] .table tbody td {
    border-color: #e2e8f0 !important;
}

/* ===== Global Styles ===== */
body {
    background: var(--bg-dark);
    color: var(--text-light);
    font-family: 'Inter', sans-serif;
    transition: background 0.3s, color 0.3s;
    overflow-x: hidden;
}

/* Scroll Progress Bar */
.progress-container {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 4px;
    background: transparent;
    z-index: 9999;
}
.progress-bar {
    height: 4px;
    background: linear-gradient(90deg, var(--primary-glow), var(--secondary-glow));
    width: 0%;
    box-shadow: 0 0 10px var(--primary-glow);
}

/* Theme Toggle */
.theme-toggle {
    position: fixed;
    bottom: 20px;
    right: 20px;
    z-index: 9999;
}
.theme-toggle input {
    display: none;
}
.toggle-label {
    display: flex;
    align-items: center;
    justify-content: space-between;
    width: 60px;
    height: 30px;
    background: var(--bg-darker);
    border-radius: 30px;
    padding: 0 5px;
    cursor: pointer;
    border: 1px solid var(--border-glow);
    box-shadow: var(--shadow);
}
.toggle-label i {
    font-size: 16px;
    color: var(--text-light);
    transition: 0.3s;
}
.toggle-label .fa-sun { color: #f39c12; }
.toggle-label .fa-moon { color: #f1c40f; }

/* Navbar */
.navbar {
    background: rgba(10, 15, 30, 0.9);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid var(--border-glow);
    transition: 0.3s;
}
.navbar .nav-link {
    color: var(--text-light);
    margin: 0 10px;
    font-weight: 500;
    position: relative;
}
.navbar .nav-link::after {
    content: '';
    position: absolute;
    bottom: -2px;
    left: 50%;
    transform: translateX(-50%);
    width: 0;
    height: 2px;
    background: linear-gradient(90deg, var(--primary-glow), var(--secondary-glow));
    transition: width 0.3s;
}
.navbar .nav-link:hover::after,
.navbar .nav-link.active::after {
    width: 70%;
}
.navbar .nav-link.active {
    color: var(--primary-glow);
}

/* Buttons */
.btn-glow {
    background: linear-gradient(145deg, var(--primary-glow), var(--secondary-glow));
    border: none;
    color: #000;
    font-weight: 600;
    padding: 12px 30px;
    border-radius: 40px;
    box-shadow: 0 0 15px var(--primary-glow);
    transition: 0.3s;
}
.btn-glow:hover {
    transform: scale(1.05);
    box-shadow: 0 0 25px var(--secondary-glow);
}
.btn-outline-glow {
    background: transparent;
    border: 2px solid var(--primary-glow);
    color: var(--primary-glow);
    padding: 10px 28px;
    border-radius: 40px;
    font-weight: 600;
    transition: 0.3s;
}
.btn-outline-glow:hover {
    background: var(--primary-glow);
    color: #000;
    box-shadow: 0 0 15px var(--primary-glow);
}

/* Cards */
.glass-card {
    background: var(--bg-card);
    backdrop-filter: blur(10px);
    border: 1px solid var(--border-glow);
    border-radius: 20px;
    padding: 30px 20px;
    box-shadow: var(--shadow);
    transition: 0.3s;
}
.glass-card:hover {
    transform: translateY(-10px);
    box-shadow: 0 20px 40px rgba(0, 240, 255, 0.2);
}

/* Sections */
.section-title {
    font-size: 2.5rem;
    font-weight: 700;
    margin-bottom: 1rem;
    background: linear-gradient(145deg, var(--primary-glow), var(--secondary-glow));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}
.section-subtitle {
    color: var(--text-muted);
    font-size: 1.2rem;
    margin-bottom: 3rem;
}

/* Hero */
.hero {
    min-height: 90vh;
    display: flex;
    align-items: center;
    background: var(--gradient-1);
    position: relative;
    overflow: hidden;
}
.hero::before {
    content: '';
    position: absolute;
    top: -50%;
    left: -50%;
    width: 200%;
    height: 200%;
    background: radial-gradient(circle, rgba(0,240,255,0.1) 0%, transparent 70%);
    animation: rotate 20s linear infinite;
}
@keyframes rotate {
    from { transform: rotate(0deg); }
    to { transform: rotate(360deg); }
}

/* Footer */
.footer {
    background: var(--bg-darker);
    padding: 60px 0 20px;
    border-top: 1px solid var(--border-glow);
}
.footer a {
    color: var(--text-muted);
    text-decoration: none;
    transition: 0.3s;
}
.footer a:hover {
    color: var(--primary-glow);
}
.social-icons a {
    display: inline-block;
    width: 40px;
    height: 40px;
    line-height: 40px;
    text-align: center;
    border-radius: 50%;
    background: var(--bg-card);
    margin-right: 10px;
    border: 1px solid var(--border-glow);
}

/* Responsive */
@media (max-width: 768px) {
    .hero h1 { font-size: 2.5rem; }
    .section-title { font-size: 2rem; }
}