/* Material You Theme Styles */
.material-you-theme {
    /* Updated Material You colors based on Google Pixel UI */
    --primary-color: #1a73e8;
    --primary-light: #e8f0fe;
    --secondary-color: #8ab4f8;
    --tertiary-color: #f28b82;
    --success-color: #34a853;
    --warning-color: #fbbc04;
    --danger-color: #ea4335;
    --info-color: #4285f4;
    
    /* Material You specific colors */
    --surface: #ffffff;
    --surface-variant: #f1f3f4;
    --surface-bright: #ffffff;
    --surface-dim: #f8f9fa;
    --on-surface: #202124;
    --on-surface-variant: #5f6368;
    --container-color: rgba(255, 255, 255, 0.85);
    --card-shadow: 0 2px 10px rgba(0, 0, 0, 0.08);
    
    /* Font properties */
    font-family: 'Google Sans', 'Roboto', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    
    /* Animation properties */
    --transition-bounce: cubic-bezier(0.34, 1.56, 0.64, 1);
    --transition-fast-out-slow-in: cubic-bezier(0.4, 0, 0.2, 1);
}

/* Dark mode overrides for Material You */
.material-you-theme.dark-mode {
    --surface: #202124;
    --surface-variant: #303134;
    --surface-bright: #3c4043;
    --surface-dim: #1a1a1a;
    --on-surface: #e8eaed;
    --on-surface-variant: #9aa0a6;
    --primary-color: #8ab4f8;
    --primary-light: #1a2e52;
    --secondary-color: #aecbfa;
    --tertiary-color: #f28b82;
    --success-color: #81c995;
    --warning-color: #fdd663;
    --danger-color: #f28b82;
    --info-color: #8ab4f8;
    --container-color: rgba(32, 33, 36, 0.85);
    --card-shadow: 0 2px 10px rgba(0, 0, 0, 0.25);
    
    /* Enhanced palette button colors for dark mode */
    --not-visited-bg: #303134;
    --not-answered-bg: #4e2a2d;
    --answered-bg: #1e3a2b;
    --marked-review-bg: #1e3555;
    --not-visited-border: #5f6368;
    --not-answered-border: #9e4a4a;
    --answered-border: #4d8a63;
    --marked-review-border: #4285f4;
}

/* Header styling */
.material-you-theme .header {
    background-color: var(--primary-color);
    color: white;
    padding: 16px 0;
    text-align: center;
    font-size: 22px;
    font-weight: 500;
    position: relative;
    z-index: 10;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
    border-radius: 0 0 24px 24px;
}

/* Button styles with Material You design */
.material-you-theme .primary-btn {
    background-color: var(--primary-color);
    border-radius: 24px;
    padding: 12px 24px;
    font-weight: 500;
    font-family: 'Google Sans', 'Roboto', sans-serif;
    box-shadow: 0 3px 6px rgba(0, 0, 0, 0.16);
    transition: all 0.3s var(--transition-bounce);
    letter-spacing: 0.01em;
    position: relative;
    overflow: hidden;
}

.material-you-theme .primary-btn:hover:not(:disabled) {
    transform: translateY(-3px) scale(1.03);
    box-shadow: 0 6px 12px rgba(0, 0, 0, 0.2);
    background-color: var(--primary-color);
}

.material-you-theme .primary-btn:active:not(:disabled) {
    transform: scale(0.97);
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.15);
}

.material-you-theme .primary-btn::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: radial-gradient(circle, rgba(255,255,255,0.4) 0%, rgba(255,255,255,0) 70%);
    transform: scale(0);
    opacity: 0;
    transition: transform 0.5s, opacity 0.5s;
}

.material-you-theme .primary-btn:hover::before {
    transform: scale(2);
    opacity: 1;
}

.material-you-theme .secondary-btn {
    background-color: var(--surface-variant);
    color: var(--on-surface-variant);
    border: none;
    border-radius: 20px;
    transition: background-color 0.2s;
}

.material-you-theme .secondary-btn:hover:not(:disabled) {
    background-color: rgba(103, 80, 164, 0.08);
}

/* Material You Palette button styles */
.material-you-theme .question-palette button {
    border-radius: 12px;
    transition: transform 0.2s, box-shadow 0.2s;
}

.material-you-theme .question-palette button:hover {
    transform: translateY(-2px);
    box-shadow: 0 3px 8px rgba(0, 0, 0, 0.1);
}

/* Material You Input styles */
.material-you-theme input, 
.material-you-theme select {
    border-radius: 12px;
    border: 2px solid var(--surface-variant);
    padding: 12px 16px;
    background-color: var(--surface);
    transition: border-color 0.2s, box-shadow 0.2s;
}

.material-you-theme input:focus, 
.material-you-theme select:focus {
    border-color: var(--primary-color);
    box-shadow: 0 0 0 2px rgba(103, 80, 164, 0.2);
}

/* Navigation buttons */
.material-you-theme .nav-btn {
    font-weight: 500;
    border-radius: 20px;
    padding: 10px 20px;
    transition: transform 0.2s, box-shadow 0.2s;
    box-shadow: 0 2px 5px rgba(0, 0, 0, 0.08);
}

.material-you-theme .nav-btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 8px rgba(0, 0, 0, 0.12);
}

.material-you-theme .save-next {
    background-color: var(--success-color);
    color: white;
}

.material-you-theme .mark-review {
    background-color: var(--warning-color);
    color: black;
}

.material-you-theme .clear-response {
    background-color: var(--surface-variant);
    color: var(--on-surface-variant);
}

/* Material You Tab styles */
.material-you-theme .subject-tab {
    border: none;
    background-color: var(--surface-variant);
    color: var(--on-surface-variant);
    border-radius: 16px;
    padding: 10px 20px;
    transition: background-color 0.2s, transform 0.2s;
}

.material-you-theme .subject-tab:hover {
    background-color: rgba(103, 80, 164, 0.08);
    transform: translateY(-2px);
}

.material-you-theme .subject-tab.active {
    background-color: var(--primary-color);
    color: white;
    box-shadow: 0 3px 8px rgba(0, 0, 0, 0.1);
}

/* Submit button */
.material-you-theme .submit-btn {
    background-color: var(--danger-color);
    color: white;
    font-weight: 500;
    border-radius: 20px;
    box-shadow: 0 3px 6px rgba(0, 0, 0, 0.16);
    transition: transform 0.2s, box-shadow 0.2s;
    padding: 14px 28px;
}

.material-you-theme .submit-btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 10px rgba(0, 0, 0, 0.2);
}

/* Option styles */
.material-you-theme .options label {
    border-radius: 16px;
    padding: 16px;
    margin-bottom: 12px;
    transition: transform 0.2s, box-shadow 0.2s, background-color 0.2s;
    box-shadow: 0 1px 3px rgba(0, 0, 0, 0.05);
}

.material-you-theme .options label:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 8px rgba(0, 0, 0, 0.1);
    background-color: var(--primary-light);
}

.material-you-theme .options input[type="radio"]:checked + .option-text-span,
.material-you-theme .options input[type="checkbox"]:checked + .option-text-span {
    color: var(--primary-color);
    font-weight: 500;
}

/* Modal styling */
.material-you-theme .modal-content {
    border-radius: 28px;
    box-shadow: 0 10px 25px rgba(0, 0, 0, 0.2);
    padding: 28px;
}

/* Animation effects */
.material-you-theme .btn-scale {
    transition: transform 0.2s;
}

.material-you-theme .btn-scale:active {
    transform: scale(0.95);
}

/* Card styles */
.material-you-theme .card,
.material-you-theme .login-container,
.material-you-theme .instructions-container,
.material-you-theme .main-container,
.material-you-theme .results-container,
.material-you-theme .review-container {
    background-color: var(--container-color, rgba(255, 255, 255, 0.85));
    backdrop-filter: blur(15px);
    -webkit-backdrop-filter: blur(15px);
    border-radius: 28px;
    box-shadow: var(--card-shadow, 0 4px 12px rgba(0, 0, 0, 0.08));
    transition: transform 0.4s var(--transition-bounce), box-shadow 0.3s;
    border: 1px solid rgba(255, 255, 255, 0.1);
}

.material-you-theme .card:hover,
.material-you-theme .login-container:hover {
    transform: translateY(-5px) scale(1.01);
    box-shadow: 0 12px 24px rgba(0, 0, 0, 0.12);
}

/* Inner cards with lighter elevation */
.material-you-theme .palette-container,
.material-you-theme .summary-container,
.material-you-theme .instructions-content,
.material-you-theme .review-question-card {
    background-color: rgba(255, 255, 255, 0.5);
    border-radius: 20px;
    transition: transform 0.3s, box-shadow 0.3s;
    box-shadow: 0 2px 6px rgba(0, 0, 0, 0.05);
}

.material-you-theme.dark-mode .palette-container,
.material-you-theme.dark-mode .summary-container,
.material-you-theme.dark-mode .instructions-content,
.material-you-theme.dark-mode .review-question-card {
    background-color: rgba(40, 40, 40, 0.5);
}