/* ============================================
   LIQUID GLASS THEME
   Premium Glassmorphism for Dashboard & Quiz
   ============================================ */

/* Light Theme Glass Variables (Default) */
:root {
    --glass-bg-dark: rgba(255, 255, 255, 0.75);
    --glass-bg-card: rgba(255, 255, 255, 0.65);
    --glass-bg-subtle: rgba(255, 255, 255, 0.4);
    --glass-border: rgba(0, 0, 0, 0.08);
    --glass-border-color: rgba(0, 0, 0, 0.1);
    --glass-shadow: 0 8px 32px 0 rgba(0, 0, 0, 0.1);
    --glass-shadow-combined: 0 8px 32px 0 rgba(0, 0, 0, 0.08), 0 1px 3px rgba(0, 0, 0, 0.05);
    --glass-blur: 24px;

    --text-primary: rgba(9, 9, 11, 0.95);
    --text-secondary: rgba(9, 9, 11, 0.7);
    --text-muted: rgba(113, 113, 122, 1);

    --primary-green: #16a34a;
    --primary-green-glow: rgba(22, 163, 74, 0.3);
}

/* Dark Theme Glass Variables */
[data-theme="dark"] {
    --glass-bg-dark: rgba(10, 10, 12, 0.75);
    --glass-bg-card: rgba(20, 20, 20, 0.65);
    --glass-bg-subtle: rgba(20, 20, 20, 0.4);
    --glass-border: rgba(255, 255, 255, 0.08);
    --glass-border-color: rgba(255, 255, 255, 0.1);
    --glass-shadow: 0 8px 32px 0 rgba(0, 0, 0, 0.3);
    --glass-shadow-combined: 0 8px 32px 0 rgba(0, 0, 0, 0.3), 0 1px 3px rgba(0, 0, 0, 0.2);
    --glass-blur: 24px;

    --text-primary: rgba(255, 255, 255, 0.95);
    --text-secondary: rgba(255, 255, 255, 0.6);
    --text-muted: rgba(255, 255, 255, 0.4);

    --primary-green: #00ff9d;
    --primary-green-glow: rgba(0, 255, 157, 0.4);
}

/* Base Glass Card */
.glass-card {
    background: var(--glass-bg-card);
    backdrop-filter: blur(var(--glass-blur));
    -webkit-backdrop-filter: blur(var(--glass-blur));
    border: 1px solid var(--glass-border);
    border-radius: 24px;
    box-shadow: var(--glass-shadow);
    color: var(--text-primary);
    overflow: hidden;
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.glass-card:hover {
    box-shadow: 0 12px 40px rgba(0, 0, 0, 0.4);
    border-color: rgba(255, 255, 255, 0.15);
}

/* Glass Header (for cards) */
.glass-header {
    padding: 1.5rem 2rem;
    border-bottom: 1px solid var(--glass-border);
    background: rgba(0, 0, 0, 0.2);
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.glass-title {
    font-size: 1.25rem;
    font-weight: 600;
    letter-spacing: -0.01em;
    color: var(--text-primary);
}

/* Stylized Dropdowns - Light Theme Default */
select.glass-select {
    appearance: none;
    -webkit-appearance: none;
    background-color: rgba(255, 255, 255, 0.9);
    background-image: url("data:image/svg+xml;charset=UTF-8,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%2309090b' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3e%3cpolyline points='6 9 12 15 18 9'%3e%3c/polyline%3e%3c/svg%3e");
    background-repeat: no-repeat;
    background-position: right 1rem center;
    background-size: 1em;
    color: #09090b;
    padding: 0.75rem 2.5rem 0.75rem 1rem;
    border: 1px solid var(--glass-border);
    border-radius: 12px;
    font-size: 1rem;
    width: 100%;
    cursor: pointer;
    transition: all 0.2s ease;
}

/* Dark Theme Dropdown */
[data-theme="dark"] select.glass-select {
    background-color: rgba(30, 30, 35, 0.8);
    background-image: url("data:image/svg+xml;charset=UTF-8,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='white' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3e%3cpolyline points='6 9 12 15 18 9'%3e%3c/polyline%3e%3c/svg%3e");
    color: white;
}

select.glass-select:focus {
    outline: none;
    border-color: var(--primary-green);
    box-shadow: 0 0 0 3px var(--primary-green-glow);
}

/* Dropdown Options - Light Theme */
select.glass-select option {
    background-color: #ffffff;
    color: #09090b;
    padding: 10px;
}

/* Dropdown Options - Dark Theme */
[data-theme="dark"] select.glass-select option {
    background-color: #1a1a1c;
    color: white;
}

/* Action Buttons (Glass & Primary) */
.btn-glass {
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid var(--glass-border);
    color: var(--text-primary);
    padding: 0.75rem 1.5rem;
    border-radius: 12px;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.2s;
    backdrop-filter: blur(4px);
}

.btn-glass:hover {
    background: rgba(255, 255, 255, 0.1);
    transform: translateY(-1px);
}

.btn-glow-primary {
    background: linear-gradient(135deg, rgba(0, 255, 157, 0.1), rgba(0, 255, 157, 0.2));
    border: 1px solid var(--primary-green);
    color: var(--primary-green);
    padding: 0.75rem 2rem;
    border-radius: 12px;
    font-weight: 600;
    cursor: pointer;
    box-shadow: 0 0 15px var(--primary-green-glow);
    transition: all 0.2s;
}

.btn-glow-primary:hover:not(:disabled) {
    background: var(--primary-green);
    color: black;
    box-shadow: 0 0 25px var(--primary-green-glow);
    transform: translateY(-1px);
}

.btn-glow-primary:disabled {
    filter: grayscale(1);
    opacity: 0.5;
    cursor: not-allowed;
    transform: none;
    box-shadow: none;
}

/* Dashboard Specific Tweaks */
.glass-stat {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

.glass-stat-value {
    font-size: 2rem;
    font-weight: 700;
    color: white;
    text-shadow: 0 2px 10px rgba(0, 0, 0, 0.5);
}

.glass-stat-label {
    text-transform: uppercase;
    letter-spacing: 1px;
    font-size: 0.75rem;
    color: var(--text-secondary);
}