/**
 * Student Portal Styles
 */

/* Header & Navigation */
.header {
    background: var(--bg-card);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid rgba(255, 255, 255, 0.2);
    padding: var(--space-md) 0;
    position: sticky;
    top: 0;
    z-index: 100;
    box-shadow: var(--shadow-sm);
}

.navbar {
    display: flex;
    align-items: center;
    justify-content: space-between;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--space-lg);
}

.navbar-logo {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--color-primary);
    text-decoration: none;
}

.navbar-menu {
    display: flex;
    gap: var(--space-lg);
    align-items: center;
    list-style: none;
}

.navbar-link {
    color: var(--text-primary);
    font-weight: 500;
    transition: color var(--transition-fast);
}

.navbar-link:hover {
    color: var(--color-primary);
}

.navbar-toggle {
    display: none;
    background: none;
    border: none;
    font-size: 1.5rem;
    cursor: pointer;
}

/* Hero Section */
.hero {
    background: linear-gradient(135deg, rgba(79, 70, 229, 0.1), rgba(139, 92, 246, 0.1));
    padding: var(--space-2xl) var(--space-lg);
    text-align: center;
}

.hero-content {
    max-width: 800px;
    margin: 0 auto;
}

.hero h1 {
    color: var(--text-primary);
    margin-bottom: var(--space-lg);
}

.hero p {
    font-size: 1.125rem;
    color: var(--text-secondary);
    margin-bottom: var(--space-lg);
}

/* Auth Forms */
.auth-container {
    max-width: 500px;
    margin: var(--space-2xl) auto;
    padding: 0 var(--space-lg);
}

.form-tabs {
    display: flex;
    gap: var(--space-md);
    margin-bottom: var(--space-xl);
    border-bottom: 2px solid var(--border-color);
}

.tab {
    background: none;
    border: none;
    padding: var(--space-md) var(--space-lg);
    font-size: 1rem;
    font-weight: 600;
    color: var(--text-secondary);
    cursor: pointer;
    border-bottom: 3px solid transparent;
    margin-bottom: -2px;
    transition: all var(--transition-fast);
}

.tab.active {
    color: var(--color-primary);
    border-bottom-color: var(--color-primary);
}

.form-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--space-md);
}

.form-row-full {
    grid-template-columns: 1fr;
}

.checkbox-group {
    display: flex;
    align-items: center;
    gap: var(--space-sm);
    margin-bottom: var(--space-lg);
}

.checkbox-group input {
    width: 20px;
    height: 20px;
    cursor: pointer;
}

.checkbox-group label {
    cursor: pointer;
    color: var(--text-secondary);
}

.checkbox-group a {
    color: var(--color-primary);
}

/* Password Strength Indicator */
.password-strength {
    height: 4px;
    background: var(--border-color);
    border-radius: 2px;
    margin-top: var(--space-sm);
    overflow: hidden;
}

.password-strength-bar {
    height: 100%;
    width: 0%;
    transition: width var(--transition-base), background-color var(--transition-base);
}

.password-strength-bar.weak {
    width: 33%;
    background: var(--color-error);
}

.password-strength-bar.medium {
    width: 66%;
    background: var(--color-warning);
}

.password-strength-bar.strong {
    width: 100%;
    background: var(--color-success);
}

/* Dashboard */
.dashboard {
    padding: var(--space-2xl) var(--space-lg);
}

.dashboard-header {
    margin-bottom: var(--space-2xl);
}

.dashboard-greeting {
    font-size: 1.125rem;
    color: var(--text-secondary);
    margin-bottom: var(--space-md);
}

.test-cards {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: var(--space-lg);
    margin-bottom: var(--space-2xl);
}

.test-card {
    background: var(--bg-card);
    backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, 0.2);
    border-radius: var(--border-radius);
    padding: var(--space-lg);
    cursor: pointer;
    transition: all var(--transition-base);
}

.test-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-lg);
}

.test-card-icon {
    font-size: 2rem;
    margin-bottom: var(--space-md);
}

.test-card h3 {
    margin-bottom: var(--space-sm);
}

.test-card p {
    font-size: 0.875rem;
    color: var(--text-secondary);
}

/* Instructions Page */
.instructions-container {
    max-width: 900px;
    margin: 0 auto;
    padding: var(--space-2xl) var(--space-lg);
}

.instruction-header {
    margin-bottom: var(--space-2xl);
}

.test-info-cards {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: var(--space-lg);
    margin: var(--space-lg) 0;
}

.info-card {
    background: var(--bg-card);
    backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, 0.2);
    border-radius: var(--border-radius);
    padding: var(--space-lg);
    text-align: center;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: var(--space-md);
}

.info-card-icon {
    font-size: 2rem;
    color: var(--color-primary);
}

.info-label {
    font-size: 0.875rem;
    color: var(--text-secondary);
}

.info-value {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--text-primary);
}

.instruction-section {
    background: var(--bg-card);
    backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, 0.2);
    border-radius: var(--border-radius);
    padding: var(--space-lg);
    margin-bottom: var(--space-lg);
}

.instruction-section h3 {
    display: flex;
    align-items: center;
    gap: var(--space-md);
    margin-bottom: var(--space-md);
    color: var(--color-primary);
}

.instruction-section ul {
    list-style: none;
    padding-left: 0;
}

.instruction-section li {
    padding: var(--space-sm) 0;
    padding-left: var(--space-lg);
    position: relative;
    color: var(--text-secondary);
}

.instruction-section li:before {
    content: "✓";
    position: absolute;
    left: 0;
    color: var(--color-success);
    font-weight: bold;
}

.instruction-section.warning {
    border-left: 4px solid var(--color-warning);
    background: rgba(245, 158, 11, 0.05);
}

.instruction-section.warning h3 {
    color: var(--color-warning);
}

.instruction-section.warning li:before {
    content: "!";
    color: var(--color-warning);
}

/* Question Palette */
.palette-legend {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: var(--space-lg);
}

.legend-item {
    display: flex;
    align-items: center;
    gap: var(--space-md);
}

.status-badge {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 40px;
    height: 40px;
    border-radius: 50%;
    font-weight: 600;
    font-size: 0.875rem;
}

.status-badge.answered {
    background: rgba(16, 185, 129, 0.2);
    color: var(--color-success);
    border: 2px solid var(--color-success);
}

.status-badge.not-answered {
    background: rgba(107, 114, 128, 0.2);
    color: var(--text-secondary);
    border: 2px solid var(--text-secondary);
}

.status-badge.marked {
    background: rgba(245, 158, 11, 0.2);
    color: var(--color-warning);
    border: 2px solid var(--color-warning);
}

.status-badge.not-visited {
    background: rgba(0, 0, 0, 0.05);
    color: var(--text-light);
    border: 2px solid var(--border-color);
}

/* Agreement & Start Button */
.agreement-section {
    background: var(--bg-card);
    backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, 0.2);
    border-radius: var(--border-radius);
    padding: var(--space-lg);
    margin-bottom: var(--space-xl);
}

.checkbox-label {
    display: flex;
    align-items: center;
    gap: var(--space-md);
    cursor: pointer;
    font-weight: 500;
    color: var(--text-primary);
}

.checkbox-label input {
    width: 24px;
    height: 24px;
    cursor: pointer;
    accent-color: var(--color-primary);
}

.btn-start {
    width: 100%;
    padding: var(--space-lg);
    font-size: 1.125rem;
    background: linear-gradient(135deg, var(--color-primary), var(--color-secondary));
    color: white;
    border: none;
    border-radius: var(--border-radius);
    cursor: pointer;
    font-weight: 600;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--space-md);
    transition: all var(--transition-fast);
}

.btn-start:hover:not(:disabled) {
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
}

.btn-start:disabled {
    opacity: 0.5;
    cursor: not-allowed;
}

/* Responsive Forms */
@media (max-width: 640px) {
    .form-row {
        grid-template-columns: 1fr;
    }
    
    .palette-legend {
        grid-template-columns: 1fr;
    }
    
    .test-info-cards {
        grid-template-columns: 1fr;
    }
    
    .test-cards {
        grid-template-columns: 1fr;
    }
}