/* Light Mode (Default) */
:root {
    color-scheme: light;
    --bg-primary: #ffffff;
    --bg-secondary: #f8f9fa;
    --bg-tertiary: #f1f3f5;
    --card-bg: #ffffff;
    --card-hover: #f8f9fa;
    --accent: #7f5bff;
    --accent-2: #4ac9ff;
    --accent-3: #ff77c5;
    --text-primary: #1a1a1a;
    --text-secondary: #4a5568;
    --text-muted: #718096;
    --border-color: rgba(0, 0, 0, 0.1);
    --border-hover: rgba(0, 0, 0, 0.2);
    --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.08);
    --shadow-md: 0 4px 16px rgba(0, 0, 0, 0.12);
    --shadow-lg: 0 8px 32px rgba(0, 0, 0, 0.16);
}

/* Dark Mode */
[data-theme="dark"] {
    color-scheme: dark;
    --bg-primary: #020617;
    --bg-secondary: #0f172a;
    --bg-tertiary: #1e293b;
    --card-bg: rgba(8, 16, 38, 0.8);
    --card-hover: rgba(15, 23, 42, 0.95);
    --accent: #7f5bff;
    --accent-2: #4ac9ff;
    --accent-3: #ff77c5;
    --text-primary: #f8fbff;
    --text-secondary: #94a9dd;
    --text-muted: #8e9bc7;
    --border-color: rgba(104, 129, 255, 0.25);
    --border-hover: rgba(138, 160, 255, 0.4);
    --shadow-sm: 0 2px 8px rgba(0, 5, 15, 0.3);
    --shadow-md: 0 4px 16px rgba(0, 5, 15, 0.4);
    --shadow-lg: 0 8px 32px rgba(0, 5, 15, 0.5);
}

* {
    box-sizing: border-box;
}

body {
    margin: 0;
    min-height: 100vh;
    font-family: 'Inter', 'Space Grotesk', system-ui, -apple-system, BlinkMacSystemFont, sans-serif;
    color: var(--text-primary);
    background: var(--bg-primary);
    position: relative;
    overflow-x: hidden;
    transition: background-color 0.3s ease, color 0.3s ease;
}

/* Light Mode Background */
body {
    background: linear-gradient(135deg, #f5f7fa 0%, #c3cfe2 100%);
}

body::before,
body::after {
    content: '';
    position: fixed;
    width: 40vw;
    height: 40vw;
    filter: blur(120px);
    opacity: 0.3;
    z-index: 0;
    animation: float 18s ease-in-out infinite alternate;
    pointer-events: none;
    transition: opacity 0.3s ease;
}

body::before {
    background: #e0e7ff;
    top: -10vw;
    left: -5vw;
}

body::after {
    background: #dbeafe;
    bottom: -15vw;
    right: -5vw;
}

/* Dark Mode Background */
[data-theme="dark"] body {
    background: radial-gradient(circle at 20% 20%, rgba(77, 54, 255, 0.15), transparent 40%),
        radial-gradient(circle at 80% 0%, rgba(70, 201, 255, 0.18), transparent 30%),
        var(--bg-primary);
}

[data-theme="dark"] body::before {
    background: #8f5fff;
    opacity: 0.35;
}

[data-theme="dark"] body::after {
    background: #1bddff;
    opacity: 0.35;
}

@keyframes float {
    to {
        transform: translateY(-20px) scale(1.05);
    }
}

/* Theme Toggle Button */
.theme-toggle {
    position: fixed;
    top: 20px;
    right: 20px;
    z-index: 10000;
    width: 56px;
    height: 56px;
    border-radius: 50%;
    border: 2px solid var(--border-color);
    background: var(--card-bg);
    backdrop-filter: blur(10px);
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: var(--shadow-md);
    transition: all 0.3s ease;
    overflow: hidden;
}

.theme-toggle:hover {
    transform: scale(1.1);
    box-shadow: var(--shadow-lg);
    border-color: var(--accent-2);
}

.theme-toggle svg {
    width: 24px;
    height: 24px;
    fill: var(--text-primary);
    transition: transform 0.3s ease, opacity 0.3s ease;
}

.theme-toggle .icon-sun {
    position: absolute;
    opacity: 1;
    transform: rotate(0deg);
}

.theme-toggle .icon-moon {
    position: absolute;
    opacity: 0;
    transform: rotate(90deg);
}

[data-theme="dark"] .theme-toggle .icon-sun {
    opacity: 0;
    transform: rotate(90deg);
}

[data-theme="dark"] .theme-toggle .icon-moon {
    opacity: 1;
    transform: rotate(0deg);
}

/* Navbar Styling */
.navbar {
    background: var(--card-bg) !important;
    backdrop-filter: blur(18px);
    border-bottom: 1px solid var(--border-color);
    box-shadow: var(--shadow-sm);
    position: relative;
    z-index: 1000;
    transition: background-color 0.3s ease, border-color 0.3s ease;
}

.navbar-brand,
.nav-link {
    color: var(--text-primary) !important;
    transition: color 0.2s ease;
}

.navbar-brand:hover,
.nav-link:hover {
    color: var(--accent-2) !important;
}

.navbar-toggler {
    border-color: var(--border-color);
}

.navbar-toggler-icon {
    background-image: url("data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 30 30'%3e%3cpath stroke='rgba(26, 26, 26, 0.85)' stroke-linecap='round' stroke-miterlimit='10' stroke-width='2' d='M4 7h22M4 15h22M4 23h22'/%3e%3c/svg%3e");
}

[data-theme="dark"] .navbar-toggler-icon {
    background-image: url("data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 30 30'%3e%3cpath stroke='rgba(248, 251, 255, 0.85)' stroke-linecap='round' stroke-miterlimit='10' stroke-width='2' d='M4 7h22M4 15h22M4 23h22'/%3e%3c/svg%3e");
}

/* Header/Jumbotron Styling */
.jumbotron {
    background: var(--card-bg) !important;
    backdrop-filter: blur(18px);
    border-bottom: 1px solid var(--border-color);
    margin-bottom: 0;
    padding: 3rem 0;
    position: relative;
    z-index: 1;
    transition: background-color 0.3s ease, border-color 0.3s ease;
}

.jumbotron h1 {
    color: var(--text-primary);
    font-family: 'Space Grotesk', sans-serif;
    font-weight: 600;
    background: linear-gradient(120deg, #6b9bff, #7f5bff 55%, #ff77c5);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

/* Container Styling */
.container {
    position: relative;
    z-index: 1;
    padding-top: 2rem;
    padding-bottom: 2rem;
}

/* Card Styling */
.card {
    background: var(--card-bg) !important;
    border: 1px solid var(--border-color) !important;
    border-radius: 16px !important;
    backdrop-filter: blur(18px);
    box-shadow: var(--shadow-md);
    transition: transform 0.2s ease, box-shadow 0.2s ease, border-color 0.2s ease, background-color 0.3s ease;
    margin-bottom: 1.5rem;
}

.card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-lg);
    border-color: var(--border-hover) !important;
}

.card-body {
    color: var(--text-primary);
    padding: 1.5rem;
}

.card-body h5,
.card-body .h5 {
    color: var(--text-primary);
    font-family: 'Space Grotesk', sans-serif;
    font-weight: 600;
    margin-bottom: 0.75rem;
}

.card-body h5 a,
.card-body .h5 a {
    color: var(--text-primary);
    text-decoration: none;
    transition: color 0.2s ease;
}

.card-body h5 a:hover,
.card-body .h5 a:hover {
    color: var(--accent-2);
}

.card-body p {
    color: var(--text-secondary);
    margin-bottom: 0;
}

/* Footer Styling */
footer.jumbotron {
    background: var(--card-bg) !important;
    backdrop-filter: blur(18px);
    border-top: 1px solid var(--border-color);
    margin-top: 3rem !important;
    padding: 2rem 0;
    text-align: center;
    color: var(--text-secondary);
    position: relative;
    z-index: 1;
    transition: background-color 0.3s ease, border-color 0.3s ease;
}

/* Button Styling */
.btn-primary {
    background: linear-gradient(120deg, #6b9bff, #7f5bff 55%, #ff77c5) !important;
    border: none !important;
    border-radius: 12px;
    padding: 0.75rem 1.5rem;
    font-weight: 600;
    transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 24px rgba(129, 99, 255, 0.35);
}

/* Form Styling */
.form-control {
    background: var(--bg-secondary) !important;
    border: 1px solid var(--border-color) !important;
    border-radius: 12px;
    color: var(--text-primary) !important;
    padding: 0.75rem 1rem;
    transition: border-color 0.2s ease, box-shadow 0.2s ease, transform 0.2s ease, background-color 0.3s ease;
}

.form-control:focus {
    background: var(--bg-tertiary) !important;
    border-color: var(--accent-2) !important;
    box-shadow: 0 0 0 3px rgba(74, 201, 255, 0.18) !important;
    color: var(--text-primary) !important;
    transform: translateY(-1px);
}

.form-control::placeholder {
    color: var(--text-muted) !important;
}

textarea.form-control {
    resize: vertical;
    min-height: 120px;
}

label {
    color: var(--text-primary);
    font-weight: 500;
    margin-bottom: 0.5rem;
}

.form-group {
    margin-bottom: 1.25rem;
}

/* Sidebar Styling */
.col-md-4 .card {
    position: sticky;
    top: 20px;
}

/* Responsive */
@media (max-width: 768px) {
    .container {
        padding-top: 1rem;
        padding-bottom: 1rem;
    }

    .jumbotron {
        padding: 2rem 0;
    }

    .card {
        margin-bottom: 1rem;
    }

    .theme-toggle {
        top: 15px;
        right: 15px;
        width: 48px;
        height: 48px;
    }

    .theme-toggle svg {
        width: 20px;
        height: 20px;
    }
}

/* Link Styling */
a {
    color: var(--accent-2);
    transition: color 0.2s ease;
}

a:hover {
    color: var(--accent);
}

/* Text Colors */
.text-muted {
    color: var(--text-muted) !important;
}

h1, h2, h3, h4, h5, h6,
.h1, .h2, .h3, .h4, .h5, .h6 {
    color: var(--text-primary);
    font-family: 'Space Grotesk', sans-serif;
    font-weight: 600;
}

h2, .h2 {
    margin-bottom: 1rem;
}

p {
    color: var(--text-secondary);
    line-height: 1.7;
}

.lead {
    color: var(--text-secondary) !important;
}

/* Admin Specific */
.admin-container {
    background: var(--card-bg);
    border-radius: 16px;
    padding: 2rem;
    border: 1px solid var(--border-color);
    backdrop-filter: blur(18px);
    box-shadow: var(--shadow-md);
    transition: background-color 0.3s ease, border-color 0.3s ease;
}

/* Table Styling */
.table {
    color: var(--text-primary) !important;
    background: transparent;
}

.table thead th {
    border-bottom: 2px solid var(--border-color);
    color: var(--text-primary);
    font-weight: 600;
    font-family: 'Space Grotesk', sans-serif;
}

.table tbody tr {
    border-bottom: 1px solid var(--border-color);
    transition: background-color 0.2s ease;
}

.table tbody tr:hover {
    background: rgba(74, 201, 255, 0.05);
}

.table td {
    border-color: var(--border-color);
    color: var(--text-secondary);
}

.table strong {
    color: var(--text-primary);
}

/* Modal Styling */
.modal-content {
    background: var(--card-bg) !important;
    border: 1px solid var(--border-color) !important;
    border-radius: 16px !important;
    backdrop-filter: blur(18px);
    color: var(--text-primary) !important;
    transition: background-color 0.3s ease, border-color 0.3s ease;
}

.modal-header {
    border-bottom: 1px solid var(--border-color) !important;
}

.modal-footer {
    border-top: 1px solid var(--border-color) !important;
}

.modal-body {
    color: var(--text-secondary);
}

/* Button Variants */
.btn-outline-secondary {
    border-color: var(--border-color) !important;
    color: var(--text-secondary) !important;
    background: transparent !important;
}

.btn-outline-secondary:hover {
    background: rgba(138, 160, 255, 0.1) !important;
    border-color: var(--accent-2) !important;
    color: var(--accent-2) !important;
}

.btn-outline-danger {
    border-color: rgba(255, 88, 112, 0.5) !important;
    color: #ff99a8 !important;
    background: transparent !important;
}

.btn-outline-danger:hover {
    background: rgba(255, 75, 95, 0.1) !important;
    border-color: rgba(255, 88, 112, 0.8) !important;
    color: #ff99a8 !important;
}

.btn-secondary {
    background: rgba(138, 160, 255, 0.15) !important;
    border-color: var(--border-color) !important;
    color: var(--text-primary) !important;
}

.btn-secondary:hover {
    background: rgba(138, 160, 255, 0.25) !important;
    border-color: var(--border-hover) !important;
}

.btn-danger {
    background: rgba(255, 75, 95, 0.2) !important;
    border-color: rgba(255, 88, 112, 0.5) !important;
    color: #ff99a8 !important;
}

.btn-danger:hover {
    background: rgba(255, 75, 95, 0.3) !important;
    border-color: rgba(255, 88, 112, 0.8) !important;
}

.text-success {
    color: #9aedc1 !important;
}