/**
 * BTC University - Grades Page Styles
 * Progress tracking dashboard with achievements
 * 
 * Features:
 * - Overall progress summary
 * - Course progress cards
 * - Achievement badges
 * - Activity timeline
 * - Statistics/metrics
 */

/* ============================================
   GRADES PAGE LAYOUT
============================================ */

.grades-page {
    display: grid;
    grid-template-columns: 1fr 20rem;
    gap: var(--space-8);
    padding: var(--space-8) 0;
}

/* ============================================
   GRADES MAIN CONTENT
============================================ */

.grades-main {
    min-width: 0;
}

/* ============================================
   PROGRESS OVERVIEW CARD
============================================ */

.progress-overview {
    background: linear-gradient(135deg, var(--btcu-navy) 0%, var(--btcu-navy-light) 100%);
    border-radius: var(--radius-2xl);
    padding: var(--space-8);
    margin-bottom: var(--space-8);
    color: var(--btcu-white);
}

.progress-overview-header {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    margin-bottom: var(--space-6);
}

.progress-overview-title {
    font-size: var(--text-2xl);
    font-weight: var(--font-semibold);
    margin-bottom: var(--space-1);
}

.progress-overview-subtitle {
    font-size: var(--text-sm);
    color: var(--btcu-gray-300);
}

.progress-overview-badge {
    display: flex;
    align-items: center;
    gap: var(--space-2);
    padding: var(--space-2) var(--space-4);
    background: var(--btcu-gold);
    border-radius: var(--radius-full);
    font-size: var(--text-sm);
    font-weight: var(--font-semibold);
    color: var(--btcu-navy);
}

.progress-overview-badge svg {
    width: 1rem;
    height: 1rem;
}

/* Progress Stats Grid */
.progress-stats {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: var(--space-6);
    margin-bottom: var(--space-6);
}

.progress-stat {
    text-align: center;
}

.progress-stat-value {
    font-family: var(--font-display);
    font-size: var(--text-4xl);
    font-weight: var(--font-bold);
    color: var(--btcu-gold);
    line-height: 1;
    margin-bottom: var(--space-1);
}

.progress-stat-label {
    font-size: var(--text-sm);
    color: var(--btcu-gray-300);
}

/* Overall Progress Bar */
.progress-overall {
    background: rgba(255, 255, 255, 0.1);
    border-radius: var(--radius-full);
    height: 0.75rem;
    overflow: hidden;
}

.progress-overall-bar {
    height: 100%;
    background: linear-gradient(90deg, var(--btcu-gold) 0%, var(--btcu-orange) 100%);
    border-radius: var(--radius-full);
    transition: width var(--transition-slow);
}

.progress-overall-label {
    display: flex;
    justify-content: space-between;
    margin-top: var(--space-2);
    font-size: var(--text-sm);
    color: var(--btcu-gray-300);
}

/* ============================================
   COURSE PROGRESS SECTION
============================================ */

.course-progress-section {
    margin-bottom: var(--space-8);
}

.section-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: var(--space-6);
}

.section-title {
    font-size: var(--text-xl);
    font-weight: var(--font-semibold);
    color: var(--btcu-navy);
}

.section-action {
    font-size: var(--text-sm);
    font-weight: var(--font-medium);
    color: var(--btcu-orange);
    text-decoration: none;
    display: flex;
    align-items: center;
    gap: var(--space-1);
}

.section-action:hover {
    text-decoration: underline;
}

.section-action svg {
    width: 1rem;
    height: 1rem;
}

/* Course Progress Grid */
.course-progress-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: var(--space-4);
}

/* Course Progress Card */
.course-progress-card {
    background: var(--btcu-white);
    border-radius: var(--radius-xl);
    border: 1px solid var(--btcu-gray-200);
    padding: var(--space-5);
    transition: all var(--transition-default);
}

.course-progress-card:hover {
    border-color: var(--btcu-gold);
    box-shadow: var(--shadow-md);
}

.course-progress-header {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    margin-bottom: var(--space-4);
}

.course-progress-info {
    flex: 1;
}

.course-progress-code {
    font-size: var(--text-xs);
    font-weight: var(--font-semibold);
    color: var(--btcu-gold-dark);
    text-transform: uppercase;
    letter-spacing: var(--tracking-wide);
    margin-bottom: var(--space-1);
}

.course-progress-title {
    font-size: var(--text-base);
    font-weight: var(--font-semibold);
    color: var(--btcu-navy);
    line-height: var(--leading-snug);
}

.course-progress-percentage {
    font-family: var(--font-display);
    font-size: var(--text-2xl);
    font-weight: var(--font-bold);
    color: var(--btcu-navy);
}

.course-progress-bar-container {
    margin-bottom: var(--space-3);
}

.course-progress-bar {
    height: 0.5rem;
    background: var(--btcu-gray-100);
    border-radius: var(--radius-full);
    overflow: hidden;
}

.course-progress-bar-fill {
    height: 100%;
    background: linear-gradient(90deg, var(--btcu-gold) 0%, var(--btcu-orange) 100%);
    border-radius: var(--radius-full);
    transition: width var(--transition-slow);
}

.course-progress-bar-fill.complete {
    background: var(--btcu-success);
}

.course-progress-meta {
    display: flex;
    justify-content: space-between;
    font-size: var(--text-xs);
    color: var(--btcu-gray-500);
}

.course-progress-status {
    display: flex;
    align-items: center;
    gap: var(--space-1);
}

.course-progress-status.in-progress {
    color: var(--btcu-orange);
}

.course-progress-status.completed {
    color: var(--btcu-success);
}

.course-progress-status svg {
    width: 0.875rem;
    height: 0.875rem;
}

/* ============================================
   ACHIEVEMENTS SECTION
============================================ */

.achievements-section {
    margin-bottom: var(--space-8);
}

.achievements-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: var(--space-4);
}

/* Achievement Badge */
.achievement-badge {
    background: var(--btcu-white);
    border-radius: var(--radius-xl);
    border: 1px solid var(--btcu-gray-200);
    padding: var(--space-5);
    text-align: center;
    transition: all var(--transition-default);
    cursor: pointer;
}

.achievement-badge:hover {
    border-color: var(--btcu-gold);
    box-shadow: var(--shadow-md);
    transform: translateY(-4px);
}

.achievement-badge.locked {
    opacity: 0.5;
    filter: grayscale(1);
}

.achievement-badge.locked:hover {
    transform: none;
    box-shadow: none;
}

.achievement-icon {
    width: 4rem;
    height: 4rem;
    margin: 0 auto var(--space-3);
    border-radius: var(--radius-full);
    display: flex;
    align-items: center;
    justify-content: center;
}

.achievement-icon.gold {
    background: linear-gradient(135deg, #F6E05E 0%, #D69E2E 100%);
}

.achievement-icon.silver {
    background: linear-gradient(135deg, #E2E8F0 0%, #A0AEC0 100%);
}

.achievement-icon.bronze {
    background: linear-gradient(135deg, #ED8936 0%, #C05621 100%);
}

.achievement-icon.special {
    background: linear-gradient(135deg, var(--btcu-gold) 0%, var(--btcu-orange) 100%);
}

.achievement-icon.locked {
    background: var(--btcu-gray-200);
}

.achievement-icon svg {
    width: 2rem;
    height: 2rem;
    color: var(--btcu-white);
}

.achievement-icon.locked svg {
    color: var(--btcu-gray-400);
}

.achievement-name {
    font-size: var(--text-sm);
    font-weight: var(--font-semibold);
    color: var(--btcu-navy);
    margin-bottom: var(--space-1);
}

.achievement-description {
    font-size: var(--text-xs);
    color: var(--btcu-gray-500);
}

/* ============================================
   GRADES SIDEBAR
============================================ */

.grades-sidebar {
    display: flex;
    flex-direction: column;
    gap: var(--space-6);
}

/* Sidebar Card */
.sidebar-card {
    background: var(--btcu-white);
    border-radius: var(--radius-xl);
    border: 1px solid var(--btcu-gray-200);
    overflow: hidden;
}

.sidebar-card-header {
    padding: var(--space-4);
    border-bottom: 1px solid var(--btcu-gray-100);
    display: flex;
    align-items: center;
    gap: var(--space-2);
    font-size: var(--text-sm);
    font-weight: var(--font-semibold);
    color: var(--btcu-navy);
}

.sidebar-card-header svg {
    width: 1.25rem;
    height: 1.25rem;
    color: var(--btcu-gold);
}

.sidebar-card-body {
    padding: var(--space-4);
}

/* Current Streak */
.streak-display {
    text-align: center;
    padding: var(--space-4);
}

.streak-flames {
    font-size: var(--text-4xl);
    margin-bottom: var(--space-2);
}

.streak-count {
    font-family: var(--font-display);
    font-size: var(--text-3xl);
    font-weight: var(--font-bold);
    color: var(--btcu-orange);
    margin-bottom: var(--space-1);
}

.streak-label {
    font-size: var(--text-sm);
    color: var(--btcu-gray-500);
}

.streak-calendar {
    display: grid;
    grid-template-columns: repeat(7, 1fr);
    gap: var(--space-1);
    margin-top: var(--space-4);
}

.streak-day {
    aspect-ratio: 1;
    border-radius: var(--radius-sm);
    background: var(--btcu-gray-100);
    font-size: var(--text-xs);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--btcu-gray-400);
}

.streak-day.active {
    background: var(--btcu-orange);
    color: var(--btcu-white);
}

.streak-day.today {
    border: 2px solid var(--btcu-gold);
}

/* Activity Timeline */
.activity-list {
    display: flex;
    flex-direction: column;
}

.activity-item {
    display: flex;
    gap: var(--space-3);
    padding: var(--space-3) 0;
    border-bottom: 1px solid var(--btcu-gray-100);
}

.activity-item:last-child {
    border-bottom: none;
}

.activity-icon {
    width: 2rem;
    height: 2rem;
    border-radius: var(--radius-full);
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}

.activity-icon.lesson {
    background: rgba(59, 130, 246, 0.1);
    color: var(--btcu-info);
}

.activity-icon.quiz {
    background: rgba(16, 185, 129, 0.1);
    color: var(--btcu-success);
}

.activity-icon.achievement {
    background: rgba(247, 147, 26, 0.1);
    color: var(--btcu-orange);
}

.activity-icon.badge {
    background: rgba(201, 184, 150, 0.2);
    color: var(--btcu-gold-dark);
}

.activity-icon svg {
    width: 1rem;
    height: 1rem;
}

.activity-content {
    flex: 1;
    min-width: 0;
}

.activity-text {
    font-size: var(--text-sm);
    color: var(--btcu-gray-700);
    margin-bottom: var(--space-1);
}

.activity-text strong {
    color: var(--btcu-navy);
}

.activity-time {
    font-size: var(--text-xs);
    color: var(--btcu-gray-400);
}

/* Leaderboard */
.leaderboard-list {
    display: flex;
    flex-direction: column;
}

.leaderboard-item {
    display: flex;
    align-items: center;
    gap: var(--space-3);
    padding: var(--space-3) 0;
    border-bottom: 1px solid var(--btcu-gray-100);
}

.leaderboard-item:last-child {
    border-bottom: none;
}

.leaderboard-rank {
    width: 1.5rem;
    font-size: var(--text-sm);
    font-weight: var(--font-bold);
    color: var(--btcu-gray-400);
    text-align: center;
}

.leaderboard-rank.gold {
    color: #D69E2E;
}

.leaderboard-rank.silver {
    color: #718096;
}

.leaderboard-rank.bronze {
    color: #C05621;
}

.leaderboard-avatar {
    width: 2rem;
    height: 2rem;
    border-radius: var(--radius-full);
    background: linear-gradient(135deg, var(--btcu-gold), var(--btcu-orange));
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: var(--text-xs);
    font-weight: var(--font-semibold);
    color: var(--btcu-navy);
}

.leaderboard-info {
    flex: 1;
    min-width: 0;
}

.leaderboard-name {
    font-size: var(--text-sm);
    font-weight: var(--font-medium);
    color: var(--btcu-navy);
}

.leaderboard-name.you {
    color: var(--btcu-orange);
}

.leaderboard-points {
    font-size: var(--text-xs);
    color: var(--btcu-gray-500);
}

.leaderboard-xp {
    font-size: var(--text-sm);
    font-weight: var(--font-semibold);
    color: var(--btcu-gold-dark);
}

/* ============================================
   RESPONSIVE STYLES
============================================ */

@media (max-width: 1200px) {
    .grades-page {
        grid-template-columns: 1fr;
    }
    
    .grades-sidebar {
        flex-direction: row;
        flex-wrap: wrap;
    }
    
    .grades-sidebar .sidebar-card {
        flex: 1;
        min-width: 15rem;
    }
}

@media (max-width: 1024px) {
    .achievements-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .progress-stats {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 768px) {
    .course-progress-grid {
        grid-template-columns: 1fr;
    }
    
    .achievements-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .progress-overview {
        padding: var(--space-6);
    }
    
    .progress-stat-value {
        font-size: var(--text-3xl);
    }
}

@media (max-width: 480px) {
    .progress-stats {
        grid-template-columns: 1fr 1fr;
        gap: var(--space-4);
    }
    
    .achievements-grid {
        grid-template-columns: 1fr 1fr;
    }
}