:root {
    /* Light Theme (Default) */
    --bg-body: #f4f7f6;
    --bg-card: rgba(255, 255, 255, 0.7); /* Glassy background */
    --text-main: #333333;
    --text-muted: #6c757d;
    --primary-color: #4a90e2;
    --secondary-color: #6c757d;
    --accent-color: #7b68ee; /* Medium Slate Blue */
    --border-color: rgba(255, 255, 255, 0.4);
    --input-bg: rgba(255, 255, 255, 0.6);
    --shadow-soft: 0 8px 32px 0 rgba(31, 38, 135, 0.15);
    --shadow-hover: 0 8px 32px 0 rgba(31, 38, 135, 0.25);
    --card-radius: 15px;
    --primary-gradient: linear-gradient(135deg, rgba(102, 126, 234, 0.9) 0%, rgba(118, 75, 162, 0.9) 100%);
    --secondary-gradient: linear-gradient(135deg, #6c757d 0%, #495057 100%);
    --backdrop-blur: blur(10px);
    --glass-border: 1px solid rgba(255, 255, 255, 0.4);
}

[data-theme="dark"] {
    --bg-body: #1a1a2e;
    --bg-card: rgba(22, 33, 62, 0.6); /* Glassy background */
    --text-main: #ffffff;
    --text-muted: #ffffff;
    --primary-color: #0f3460;
    --secondary-color: #533483;
    --accent-color: #e94560;
    --border-color: rgba(255, 255, 255, 0.1);
    --input-bg: rgba(15, 52, 96, 0.6);
    --shadow-soft: 0 8px 32px 0 rgba(0, 0, 0, 0.3);
    --shadow-hover: 0 8px 32px 0 rgba(0, 0, 0, 0.5);
    --glass-border: 1px solid rgba(255, 255, 255, 0.1);
}

[data-theme="dark"] h1:not(.blink-red), 
[data-theme="dark"] h2:not(.blink-red), 
[data-theme="dark"] h3:not(.blink-red), 
[data-theme="dark"] h4:not(.blink-red), 
[data-theme="dark"] h5:not(.blink-red), 
[data-theme="dark"] h6:not(.blink-red),
[data-theme="dark"] p:not(.blink-red),
[data-theme="dark"] label:not(.blink-red),
[data-theme="dark"] li:not(.blink-red),
[data-theme="dark"] span:not(.blink-red),
[data-theme="dark"] div:not(.blink-red),
[data-theme="dark"] td:not(.blink-red),
[data-theme="dark"] th:not(.blink-red),
[data-theme="dark"] small:not(.blink-red),
[data-theme="dark"] b:not(.blink-red),
[data-theme="dark"] strong:not(.blink-red),
[data-theme="dark"] i:not(.blink-red),
[data-theme="dark"] u:not(.blink-red),
[data-theme="dark"] a:not(.btn):not(.blink-red),
[data-theme="dark"] .card:not(.blink-red),
[data-theme="dark"] .modal-content:not(.blink-red),
[data-theme="dark"] .dropdown-menu:not(.blink-red),
[data-theme="dark"] .list-group-item:not(.blink-red),
[data-theme="dark"] .table:not(.blink-red),
[data-theme="dark"] .form-control:not(.blink-red),
[data-theme="dark"] .form-select:not(.blink-red),
[data-theme="dark"] .input-group-text:not(.blink-red),
[data-theme="dark"] .nav-link:not(.blink-red),
[data-theme="dark"] .accordion-button:not(.blink-red) {
    color: #ffffff !important;
}

/* Alert Styles for Dark Mode */
[data-theme="dark"] .alert {
    color: #ffffff;
    background-color: rgba(255, 255, 255, 0.1);
    border-color: rgba(255, 255, 255, 0.2);
}

[data-theme="dark"] .alert-info {
    background-color: rgba(23, 162, 184, 0.2);
    border-color: rgba(23, 162, 184, 0.3);
    color: #ffffff;
}

[data-theme="dark"] .alert-success {
    background-color: rgba(40, 167, 69, 0.2);
    border-color: rgba(40, 167, 69, 0.3);
    color: #ffffff;
}

[data-theme="dark"] .alert-danger {
    background-color: rgba(220, 53, 69, 0.2);
    border-color: rgba(220, 53, 69, 0.3);
    color: #ffffff;
}

[data-theme="dark"] .alert-warning {
    background-color: rgba(255, 193, 7, 0.2);
    border-color: rgba(255, 193, 7, 0.3);
    color: #ffffff;
}

[data-theme="dark"] .text-muted,
[data-theme="dark"] .text-dark,
[data-theme="dark"] .text-body,
[data-theme="dark"] .text-secondary,
[data-theme="dark"] .text-black-50 {
    color: #ffffff !important;
}

[data-theme="dark"] .form-control {
    color: #ffffff;
    background-color: var(--input-bg);
    border-color: var(--border-color);
}

[data-theme="dark"] .form-select {
    color: #ffffff;
    background-color: var(--input-bg);
    border-color: var(--border-color);
    background-image: url("data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 16 16'%3e%3cpath fill='none' stroke='%23ffffff' stroke-linecap='round' stroke-linejoin='round' stroke-width='2' d='M2 5l6 6 6-6'/%3e%3c/svg%3e");
}

[data-theme="dark"] .btn-close {
    filter: invert(1) grayscale(100%) brightness(200%);
}

[data-theme="dark"] .form-control:focus,
[data-theme="dark"] .form-select:focus {
    color: #ffffff;
    background-color: var(--input-bg);
    border-color: var(--primary-color);
    box-shadow: 0 0 0 0.25rem rgba(15, 52, 96, 0.5);
}

[data-theme="dark"] option {
    background-color: #1a1a2e;
    color: #ffffff;
}

body {
    background-color: var(--bg-body);
    /* Subtle gradient spots to enhance glass effect */
    background-image: 
        radial-gradient(at 0% 0%, rgba(102, 126, 234, 0.1) 0px, transparent 50%),
        radial-gradient(at 100% 0%, rgba(118, 75, 162, 0.1) 0px, transparent 50%),
        radial-gradient(at 100% 100%, rgba(233, 69, 96, 0.05) 0px, transparent 50%),
        radial-gradient(at 0% 100%, rgba(15, 52, 96, 0.05) 0px, transparent 50%);
    background-attachment: fixed;
    color: var(--text-main);
    transition: background-color 0.3s ease, color 0.3s ease;
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
}

/* Glassy Card Styles - Applied to all container types */
.card, .modal-content, .dropdown-menu, .list-group-item, .admin-card, .stats-card, .auth-card, .contact-card, .payment-card, .success-card {
    background-color: var(--bg-card);
    backdrop-filter: var(--backdrop-blur);
    -webkit-backdrop-filter: var(--backdrop-blur);
    border: var(--glass-border);
    border-radius: var(--card-radius);
    box-shadow: var(--shadow-soft);
}

.dropdown-menu {
    z-index: 10000 !important;
}

[data-theme="dark"] .dropdown-item:hover,
[data-theme="dark"] .dropdown-item:focus {
    background-color: rgba(255, 255, 255, 0.1);
    color: #ffffff;
}

[data-theme="dark"] .dropdown-item {
    color: #ffffff;
}

.card-header,
.modal-header {
    background: var(--primary-gradient);
    color: white;
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.card-header h1,
.card-header h2,
.card-header h3,
.card-header h4,
.card-header h5,
.card-header h6,
.modal-header h1,
.modal-header h2,
.modal-header h3,
.modal-header h4,
.modal-header h5,
.modal-header h6 {
    color: white !important;
}

.modal-header .btn-close {
    filter: invert(1) grayscale(100%) brightness(200%);
}

/* Badge Styles - Glassmorphism */
.badge {
    backdrop-filter: blur(4px);
    -webkit-backdrop-filter: blur(4px);
    border: 1px solid rgba(255, 255, 255, 0.2);
    box-shadow: 0 2px 5px rgba(0,0,0,0.1);
}

.badge.bg-success {
    background: rgba(40, 167, 69, 0.8) !important;
}

.badge.bg-danger {
    background: rgba(220, 53, 69, 0.8) !important;
}

.badge.bg-warning {
    background: rgba(255, 193, 7, 0.8) !important;
    color: #000;
}

.badge.bg-info {
    background: rgba(23, 162, 184, 0.8) !important;
}

.badge.bg-primary {
    background: rgba(0, 123, 255, 0.8) !important;
}

.badge.bg-secondary {
    background: rgba(108, 117, 125, 0.8) !important;
}

/* Navbar Styles */
.navbar {
    background: var(--primary-gradient) !important;
    backdrop-filter: var(--backdrop-blur);
    -webkit-backdrop-filter: var(--backdrop-blur);
    box-shadow: var(--shadow-soft);
    position: relative;
    z-index: 1030;
}

/* Admin Sidebar */
.admin-sidebar {
    background: var(--primary-gradient);
    min-height: 100vh;
    box-shadow: var(--shadow-soft);
    color: white;
}

.admin-sidebar .nav-link {
    color: rgba(255, 255, 255, 0.9) !important;
    background: rgba(255, 255, 255, 0.05);
    backdrop-filter: blur(5px);
    -webkit-backdrop-filter: blur(5px);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: 12px;
    margin-bottom: 8px;
    transition: all 0.3s ease;
    padding: 12px 20px;
    box-shadow: 0 2px 5px rgba(0, 0, 0, 0.05);
}

.admin-sidebar .nav-link:hover {
    background: rgba(255, 255, 255, 0.15);
    border-color: rgba(255, 255, 255, 0.3);
    color: white !important;
    transform: translateX(5px);
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.1);
}

.admin-sidebar .nav-link.active {
    background: rgba(255, 255, 255, 0.25);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, 0.5);
    color: white !important;
    font-weight: bold;
    box-shadow: 0 8px 32px 0 rgba(0, 0, 0, 0.15);
}

.admin-sidebar .nav-link i {
    width: 25px;
    text-align: center;
    margin-right: 10px;
}

/* Table Styles - Glassmorphism */
.table {
    color: var(--text-main);
    border-color: var(--border-color);
}

.table td, .table th {
    border-color: var(--border-color);
    background-color: transparent !important;
}

.table-striped > tbody > tr:nth-of-type(odd) > * {
    background-color: rgba(255, 255, 255, 0.05);
    color: var(--text-main);
}

.table-hover > tbody > tr:hover > * {
    background-color: rgba(255, 255, 255, 0.1);
    color: var(--text-main);
}

.table thead th {
    border-bottom: 2px solid var(--border-color);
    background-color: rgba(255, 255, 255, 0.05);
    color: var(--text-main);
}

[data-theme="dark"] .table thead th {
    color: #ffffff;
}

[data-theme="dark"] .table-striped > tbody > tr:nth-of-type(odd) > * {
    background-color: rgba(255, 255, 255, 0.02);
}

[data-theme="dark"] .table-hover > tbody > tr:hover > * {
    background-color: rgba(255, 255, 255, 0.05);
}

.navbar-brand, .nav-link {
    color: white !important;
}

/* Button Styles */
.btn-primary {
    background: var(--primary-gradient);
    border: none;
    box-shadow: 0 4px 6px rgba(50, 50, 93, 0.11), 0 1px 3px rgba(0, 0, 0, 0.08);
}

.btn-primary:hover {
    transform: translateY(-1px);
    box-shadow: 0 7px 14px rgba(50, 50, 93, 0.1), 0 3px 6px rgba(0, 0, 0, 0.08);
}

.btn-gradient-primary {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    border: none;
    color: white;
}
.btn-gradient-primary:hover {
    background: linear-gradient(135deg, #5a6fd8 0%, #6a4190 100%);
    color: white;
}
.btn-gradient-danger {
    background: linear-gradient(135deg, #f093fb 0%, #f5576c 100%);
    border: none;
    color: white;
}
.btn-gradient-danger:hover {
    background: linear-gradient(135deg, #e081e9 0%, #e3455a 100%);
    color: white;
}

.btn-gradient-success {
    background: linear-gradient(135deg, #43e97b 0%, #38f9d7 100%);
    border: none;
    color: #fff;
    text-shadow: 0 1px 2px rgba(0,0,0,0.1);
    box-shadow: 0 4px 6px rgba(50, 50, 93, 0.11), 0 1px 3px rgba(0, 0, 0, 0.08);
}

.btn-gradient-success:hover {
    background: linear-gradient(135deg, #3bd16f 0%, #32e0c2 100%);
    color: #fff;
    transform: translateY(-2px);
    box-shadow: 0 7px 14px rgba(50, 50, 93, 0.1), 0 3px 6px rgba(0, 0, 0, 0.08);
}

.btn-gradient-info {
    background: linear-gradient(135deg, #11cdef 0%, #1171ef 100%);
    border: none;
    color: white;
    box-shadow: 0 4px 6px rgba(50, 50, 93, 0.11), 0 1px 3px rgba(0, 0, 0, 0.08);
}

.btn-gradient-info:hover {
    background: linear-gradient(135deg, #0fb9d8 0%, #0f66d8 100%);
    color: white;
    transform: translateY(-1px);
    box-shadow: 0 7px 14px rgba(50, 50, 93, 0.1), 0 3px 6px rgba(0, 0, 0, 0.08);
}

/* Form Styles */
.form-control {
    background-color: var(--input-bg);
    color: var(--text-main);
    border: 1px solid var(--border-color);
    backdrop-filter: blur(5px);
    -webkit-backdrop-filter: blur(5px);
}

.form-control:focus {
    background-color: var(--input-bg);
    color: var(--text-main);
    border-color: var(--accent-color);
    box-shadow: 0 0 0 0.2rem rgba(123, 104, 238, 0.25);
}

/* Theme Toggle Button */
.theme-toggle {
    position: fixed;
    bottom: 20px;
    right: 20px;
    z-index: 1000;
    width: 50px;
    height: 50px;
    border-radius: 50%;
    background: var(--primary-gradient);
    color: white;
    border: none;
    box-shadow: var(--shadow-hover);
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    transition: transform 0.3s ease;
}

.theme-toggle:hover {
    transform: scale(1.1) rotate(15deg);
}

/* Login/Register Shared Styles */
.auth-container {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--bg-body);
}

.auth-card {
    padding: 2rem;
    width: 100%;
    max-width: 450px;
}

.auth-header {
    text-align: center;
    margin-bottom: 2rem;
}

.auth-header h2 {
    color: var(--text-main);
    font-weight: 700;
}

.auth-header p {
    color: var(--text-muted);
}

.form-label {
    color: var(--text-main);
    font-weight: 500;
}

.input-group-text {
    background-color: var(--input-bg);
    border-color: var(--border-color);
    color: var(--text-muted);
}

/* Status Styles */
@keyframes blink-green {
    0% { opacity: 1; text-shadow: 0 0 5px #43e97b; }
    50% { opacity: 0.7; text-shadow: none; }
    100% { opacity: 1; text-shadow: 0 0 5px #43e97b; }
}

@keyframes blink-red {
    0% { color: inherit; text-shadow: none; }
    50% { color: #ff0000; text-shadow: 0 0 10px rgba(255, 0, 0, 0.8), 0 0 20px rgba(255, 0, 0, 0.4); }
    100% { color: inherit; text-shadow: none; }
}

.status-running {
    color: #28a745;
    font-weight: bold;
    animation: blink-green 1.5s infinite;
}

.status-stopped {
    color: #dc3545;
    font-weight: bold;
}

.blink-red {
    animation: blink-red 1s infinite;
    font-weight: bold;
}

[data-theme="dark"] .blink-red {
    color: #ffffff;
}

/* Glassy Player Style */
.glass-player {
    background: linear-gradient(135deg, rgba(20, 30, 48, 0.85), rgba(36, 59, 85, 0.85));
    backdrop-filter: blur(15px);
    -webkit-backdrop-filter: blur(15px);
    border: 1px solid rgba(255, 255, 255, 0.1);
    box-shadow: 0 8px 32px 0 rgba(0, 0, 0, 0.5);
    color: white;
}

/* Center Login and Register Pages */
.login-page, .register-page {
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    justify-content: center;
}

/* Button Styles */
.btn {
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
    transition: all 0.3s ease;
}

.btn:hover {
    box-shadow: 0 6px 12px rgba(0, 0, 0, 0.15);
    transform: translateY(-1px);
}

/* Light Theme Buttons (Solid) */
.btn-primary { background-color: #0d6efd; color: white; border-color: #0d6efd; }
.btn-secondary { background-color: #6c757d; color: white; border-color: #6c757d; }
.btn-success { background-color: #198754; color: white; border-color: #198754; }
.btn-danger { background-color: #dc3545; color: white; border-color: #dc3545; }
.btn-warning { background-color: #ffc107; color: #000; border-color: #ffc107; }
.btn-info { background-color: #0dcaf0; color: #000; border-color: #0dcaf0; }
.btn-dark { background-color: #212529; color: white; border-color: #212529; }
.btn-light { background-color: #f8f9fa; color: #000; border-color: #f8f9fa; }

/* Dark Theme Buttons (Glassy) */
[data-theme="dark"] .btn {
    backdrop-filter: blur(5px);
    -webkit-backdrop-filter: blur(5px);
    background-image: linear-gradient(145deg, rgba(255, 255, 255, 0.2) 0%, rgba(255, 255, 255, 0.05) 100%);
    border: 1px solid rgba(255, 255, 255, 0.2) !important;
}

[data-theme="dark"] .btn:hover {
    background-image: linear-gradient(145deg, rgba(255, 255, 255, 0.3) 0%, rgba(255, 255, 255, 0.1) 100%);
}

[data-theme="dark"] .btn-primary { background-color: rgba(13, 110, 253, 0.6) !important; color: white !important; }
[data-theme="dark"] .btn-secondary { background-color: rgba(108, 117, 125, 0.6) !important; color: white !important; }
[data-theme="dark"] .btn-success { background-color: rgba(25, 135, 84, 0.6) !important; color: white !important; }
[data-theme="dark"] .btn-danger { background-color: rgba(220, 53, 69, 0.6) !important; color: white !important; }
[data-theme="dark"] .btn-warning { background-color: rgba(255, 193, 7, 0.6) !important; color: #000 !important; }
[data-theme="dark"] .btn-info { background-color: rgba(13, 202, 240, 0.6) !important; color: #000 !important; }
[data-theme="dark"] .btn-dark { background-color: rgba(33, 37, 41, 0.6) !important; color: white !important; }
[data-theme="dark"] .btn-light { background-color: rgba(248, 249, 250, 0.6) !important; color: #000 !important; }

[data-theme="dark"] .btn-primary:hover { background-color: rgba(13, 110, 253, 0.8) !important; }
[data-theme="dark"] .btn-secondary:hover { background-color: rgba(108, 117, 125, 0.8) !important; }
[data-theme="dark"] .btn-success:hover { background-color: rgba(25, 135, 84, 0.8) !important; }
[data-theme="dark"] .btn-danger:hover { background-color: rgba(220, 53, 69, 0.8) !important; }
[data-theme="dark"] .btn-warning:hover { background-color: rgba(255, 193, 7, 0.8) !important; }
[data-theme="dark"] .btn-info:hover { background-color: rgba(13, 202, 240, 0.8) !important; }