:root {
    /* Dark Mode (Default) */
    --bg-body: #0F0F0F;
    --bg-surface: #1E1E1E;
    /* Slightly lighter than body for cards */
    --bg-card: #1E1E1E;
    --text-main: #FFFFFF;
    --text-muted: #AAAAAA;
    --border-color: #333333;

    --primary-color: #FF0000;
    --primary-hover: #CC0000;
    --primary-glow: rgba(255, 0, 0, 0.5);

    --glass-bg: rgba(30, 30, 30, 0.6);
    --glass-border: rgba(255, 255, 255, 0.1);

    --nav-bg: rgba(15, 15, 15, 0.95);

    --table-hover: rgba(255, 255, 255, 0.05);
}

[data-theme="light"] {
    --bg-body: #F4F6F8;
    --bg-surface: #FFFFFF;
    --bg-card: #FFFFFF;
    --text-main: #121212;
    --text-muted: #666666;
    --border-color: #E0E0E0;

    --primary-color: #FF0000;
    --primary-hover: #CC0000;
    --primary-glow: rgba(255, 0, 0, 0.2);

    --glass-bg: rgba(255, 255, 255, 0.9);
    --glass-border: rgba(0, 0, 0, 0.1);

    --nav-bg: rgba(255, 255, 255, 0.95);

    --table-hover: rgba(0, 0, 0, 0.05);
}

/* Reset & Base */
* {
    box-sizing: border-box;
}

html,
body {
    height: 100%;
    margin: 0;
    padding: 0;
}

body {
    font-family: 'Outfit', sans-serif;
    background-color: var(--bg-body);
    color: var(--text-main);
    display: flex;
    flex-direction: column;
    min-height: 100vh;
    transition: background-color 0.3s ease, color 0.3s ease;
}

h1,
h2,
h3,
h4,
h5,
h6 {
    color: var(--text-main);
    font-weight: 700;
}

a {
    text-decoration: none;
    color: inherit;
}

/* Navbar */
.navbar {
    background-color: var(--nav-bg) !important;
    backdrop-filter: blur(15px);
    border-bottom: 1px solid var(--border-color);
    padding: 15px 0;
    transition: background-color 0.3s ease, border-color 0.3s ease;
}

.navbar-brand {
    font-weight: 800;
    font-size: 1.5rem;
    color: var(--text-main) !important;
    letter-spacing: -0.5px;
}

.brand-accent {
    color: var(--primary-color);
    text-shadow: 0 0 10px var(--primary-glow);
}

.nav-link {
    color: var(--text-muted) !important;
    font-weight: 500;
    transition: color 0.2s;
}

.nav-link:hover,
.nav-link.active {
    color: var(--primary-color) !important;
}

/* Base Card Style (Used for Login, Register, Dashboard Panels) */
.card {
    background-color: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: 16px;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.1);
    color: var(--text-main);
    transition: background-color 0.3s ease, border-color 0.3s ease;
}

.card-header {
    background-color: transparent;
    border-bottom: 1px solid var(--border-color);
    color: var(--text-main);
    padding: 1.25rem 1.5rem;
    border-radius: 16px 16px 0 0 !important;
}

/* Stat Cards (Dashboard) */
.stat-card {
    background-color: var(--bg-surface);
    border: 1px solid var(--border-color);
    border-radius: 16px;
    padding: 24px;
    display: flex;
    align-items: center;
    gap: 20px;
    transition: transform 0.2s, border-color 0.2s;
}

.stat-card:hover {
    transform: translateY(-2px);
    border-color: var(--primary-color);
    box-shadow: 0 0 15px var(--glass-border);
}

.stat-icon {
    width: 60px;
    height: 60px;
    border-radius: 12px;
    background: rgba(255, 0, 0, 0.1);
    color: var(--primary-color);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
}

/* Tables */
.table {
    --bs-table-bg: transparent;
    --bs-table-color: var(--text-main);
    --bs-table-border-color: var(--border-color);
    --bs-table-hover-bg: var(--table-hover);
    color: var(--text-main);
}

.table thead th {
    border-bottom: 1px solid var(--border-color);
    color: var(--text-muted);
    font-weight: 600;
    text-transform: uppercase;
    font-size: 0.85rem;
    letter-spacing: 0.5px;
}

.table td {
    vertical-align: middle;
}

/* Forms & Inputs */
.form-control {
    background-color: var(--bg-body);
    border: 1px solid var(--border-color);
    color: var(--text-main);
    border-radius: 10px;
    padding: 12px 15px;
    transition: all 0.2s;
}

.form-control:focus {
    background-color: var(--bg-body);
    border-color: var(--primary-color);
    color: var(--text-main);
    box-shadow: 0 0 0 4px var(--primary-glow);
}

.form-control::placeholder {
    color: var(--text-muted);
    opacity: 0.7;
}

/* Buttons */
.btn {
    border-radius: 10px;
    padding: 10px 24px;
    font-weight: 600;
    transition: all 0.2s;
}

.btn-primary {
    background-color: var(--primary-color);
    border: none;
    color: #fff;
    box-shadow: 0 4px 15px var(--primary-glow);
}

.btn-primary:hover {
    background-color: var(--primary-hover);
    transform: translateY(-2px);
    box-shadow: 0 6px 20px var(--primary-glow);
}

.btn-outline {
    background: transparent;
    border: 1px solid var(--border-color);
    color: var(--text-main);
}

.btn-outline:hover {
    border-color: var(--primary-color);
    color: var(--primary-color);
    background: rgba(255, 0, 0, 0.05);
}

/* Alerts */
.alert {
    background-color: var(--glass-bg);
    border: 1px solid var(--border-color);
    color: var(--text-main);
    border-radius: 12px;
}

.alert-success {
    background-color: rgba(25, 135, 84, 0.2);
    border-color: rgba(25, 135, 84, 0.3);
    color: #75b798;
}

.alert-danger {
    background-color: rgba(220, 53, 69, 0.2);
    border-color: rgba(220, 53, 69, 0.3);
    color: #ea868f;
}

/* Badges */
.badge {
    padding: 0.5em 0.8em;
    font-weight: 500;
}

/* Theme Toggle Button */
.theme-toggle-btn,
.theme-toggle {
    background: transparent;
    border: 1px solid var(--border-color);
    color: var(--text-main);
    width: 40px;
    height: 40px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    transition: 0.3s;
}

.theme-toggle-btn:hover,
.theme-toggle:hover {
    border-color: var(--primary-color);
    color: var(--primary-color);
    background: var(--glass-bg);
}

/* Glassmorphism helpers for Landing Page */
.glass-card {
    background: var(--glass-bg);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border: 1px solid var(--glass-border);
    border-radius: 16px;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.2);
}

.text-gradient {
    background: linear-gradient(135deg, #FF0000 0%, #FFA500 100%);
    background-clip: text;
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    font-weight: bold;
}

/* Helpers */
.main-container {
    flex: 1;
    padding-top: 30px;
    padding-bottom: 50px;
}

footer {
    background-color: var(--nav-bg);
    border-top: 1px solid var(--border-color);
    margin-top: auto;
    padding: 2rem 0;
    text-align: center;
}

/* Animations */
@keyframes float {
    0% {
        transform: translateY(0px) rotate(-2deg);
    }

    50% {
        transform: translateY(-15px) rotate(-2deg);
    }

    100% {
        transform: translateY(0px) rotate(-2deg);
    }
}

.animate-float {
    animation: float 6s ease-in-out infinite;
}