/* === Grades Section Styles === */

/* Grades Stats Header */
.grades-stats-row {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 1.5rem;
    margin-bottom: 2rem;
}

.grade-stat {
    background-color: var(--surface-color);
    padding: 1.5rem;
    border-radius: var(--radius-xl);
    border: 1px solid var(--border-color-subtle);
    box-shadow: var(--shadow-sm);
    display: flex;
    align-items: center;
    gap: 1rem;
    transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.grade-stat:hover {
    box-shadow: var(--shadow-md);
}

.grade-stat-icon {
    width: 3rem;
    height: 3rem;
    border-radius: var(--radius-lg);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.4rem;
    background-color: var(--bg-color);
    color: var(--text-secondary);
}

.grade-stat-icon.primary {
    background-color: rgba(59, 130, 246, 0.1);
    color: var(--primary-color);
}

.grade-stat-icon.success {
    background-color: rgba(16, 185, 129, 0.1);
    color: var(--success-color);
}

.grade-stat-icon.purple {
    background-color: rgba(139, 92, 246, 0.1);
    color: #8b5cf6;
}

.grade-stat-info {
    display: flex;
    flex-direction: column;
}

.grade-stat-label {
    font-size: 0.85rem;
    color: var(--text-secondary);
}

.grade-stat-value {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--text-primary);
    letter-spacing: -0.02em;
}

/* Semester Sections */
.semester-section {
    margin-bottom: 2rem;
}

.semester-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 1rem;
    padding: 0.75rem 0;
    border-bottom: 2px solid var(--border-color-subtle);
    cursor: pointer;
    user-select: none;
    transition: border-color 0.2s;
}

.semester-header:hover {
    border-bottom-color: var(--primary-color);
}

.semester-header h3 {
    font-size: 1.1rem;
    color: var(--text-primary);
    font-weight: 600;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.semester-header h3::before {
    content: 'expand_more';
    font-family: 'Material Icons Round';
    font-size: 1.25rem;
    transition: transform 0.3s;
}

/* Collapsed State */
.semester-section.collapsed .semester-header h3::before {
    transform: rotate(-90deg);
}

.semester-section.collapsed .grades-card {
    display: none;
}

.semester-stats {
    font-size: 0.85rem;
    color: var(--text-secondary);
}

/* Enhanced Table */
.grades-card {
    background-color: var(--surface-color);
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-sm);
    border: 1px solid var(--border-color-subtle);
    overflow-x: auto;
}

.grades-table {
    width: 100%;
    border-collapse: collapse;
}

.grades-table th {
    background-color: var(--bg-color);
    padding: 0.85rem 1.5rem;
    text-align: left;
    font-weight: 600;
    color: var(--text-tertiary);
    font-size: 0.75rem;
    text-transform: uppercase;
    letter-spacing: 0.06em;
}

.grades-table td {
    padding: 1.25rem 1.5rem;
    border-bottom: 1px solid var(--border-color);
    color: var(--text-primary);
    vertical-align: middle;
}

.grades-table tr:last-child td {
    border-bottom: none;
}

.grades-table tr:hover td {
    background-color: var(--primary-light);
}

/* Module Column */
.module-cell {
    display: flex;
    flex-direction: column;
}

.module-code {
    font-size: 0.75rem;
    color: var(--text-secondary);
    margin-bottom: 0.2rem;
}

.module-name {
    font-weight: 500;
}

/* Grade Column */
.grade-badge {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-width: 38px;
    height: 38px;
    border-radius: var(--radius-md);
    font-weight: 800;
    font-size: 0.95rem;
    transition: transform 0.2s ease;
}

.grade-badge:hover {
    opacity: 0.9;
}

.grade-badge.excellent {
    background-color: rgba(16, 185, 129, 0.15);
    color: #059669;
}

/* 1.0 - 1.5 */
.grade-badge.good {
    background-color: rgba(59, 130, 246, 0.15);
    color: #2563EB;
}

/* 1.6 - 2.5 */
.grade-badge.average {
    background-color: rgba(245, 158, 11, 0.15);
    color: #D97706;
}

/* 2.6 - 3.5 */
.grade-badge.passed {
    background-color: rgba(107, 114, 128, 0.15);
    color: #4B5563;
}

/* 3.6 - 4.0 */
.grade-badge.failed {
    background-color: rgba(239, 68, 68, 0.15);
    color: #DC2626;
}

/* 5.0 */
.grade-badge.pending {
    background-color: var(--bg-color);
    color: var(--text-secondary);
    font-size: 1.2rem;
}

/* Status Column */
.status-indicator {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-size: 0.85rem;
    font-weight: 500;
}

.status-indicator.passed {
    color: var(--success-color);
}

.status-indicator.failed {
    color: var(--error-color);
}

.status-indicator.pending {
    color: var(--warning-color);
}

.status-dot {
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background-color: currentColor;
}

/* Credits Progress (Visual ECTS) */
.credits-pill {
    background-color: var(--bg-color);
    padding: 0.25rem 0.75rem;
    border-radius: 999px;
    font-size: 0.8rem;
    font-weight: 600;
    color: var(--text-secondary);
    border: 1px solid var(--border-color-subtle);
}

/* Dark mode glassmorphism for grades */
body.dark-mode .grade-stat {
    background-color: var(--glass-bg);
    backdrop-filter: var(--glass-blur);
    -webkit-backdrop-filter: var(--glass-blur);
    border-color: var(--glass-border);
}

body.dark-mode .grades-card {
    background-color: var(--glass-bg);
    backdrop-filter: var(--glass-blur);
    -webkit-backdrop-filter: var(--glass-blur);
    border-color: var(--glass-border);
}

body.dark-mode .grade-badge.good {
    background-color: rgba(59, 130, 246, 0.12);
    color: #60A5FA;
}

/* Mobile Responsiveness */
@media (max-width: 768px) {

    /* Stats Row - Horizontal Scroll matching Dashboard */
    .grades-stats-row {
        display: flex;
        overflow-x: auto;
        scroll-snap-type: x mandatory;
        gap: 1rem;
        padding-bottom: 0.5rem;
        margin-right: -1rem;
        padding-right: 1rem;
        scrollbar-width: none;
        grid-template-columns: none;
    }

    .grades-stats-row::-webkit-scrollbar {
        display: none;
    }

    .grade-stat {
        min-width: 75%;
        scroll-snap-align: start;
        flex-shrink: 0;
        padding: 1rem;
    }

    /* Semester Header Stack */
    .semester-header {
        flex-direction: column;
        align-items: flex-start;
        gap: 0.25rem;
    }

    .semester-stats {
        font-size: 0.8rem;
    }

    /* Table to Card Transformation */
    .grades-card {
        background: transparent;
        border: none;
        box-shadow: none;
        overflow: visible;
    }

    .grades-table {
        background: transparent;
    }

    .grades-table thead {
        display: none;
    }

    .grades-table tbody {
        display: flex;
        flex-direction: column;
        gap: 1rem;
    }

    .grades-table tr {
        display: flex;
        flex-direction: column;
        background-color: var(--surface-color);
        border: 1px solid var(--border-color);
        border-radius: var(--radius-md);
        padding: 1rem;
        position: relative;
        box-shadow: var(--shadow-sm);
    }

    .grades-table td {
        display: block;
        padding: 0;
        border: none;
        width: 100%;
    }

    .grades-table tr:hover td {
        background: transparent;
    }

    /* Cell 1: Module Info */
    .grades-table td:nth-child(1) {
        margin-bottom: 0.75rem;
        padding-right: 3.5rem;
        /* Space for grade */
    }

    .module-code {
        font-size: 0.7rem;
    }

    .module-name {
        font-size: 1rem;
        font-weight: 600;
        color: var(--text-primary);
    }

    /* Cell 2 (Date) & 3 (ECTS) - Inline metadata */
    .grades-table td:nth-child(2),
    .grades-table td:nth-child(3) {
        display: inline-block;
        width: auto;
        margin-right: 0.75rem;
        margin-bottom: 0.5rem;
        font-size: 0.8rem;
        color: var(--text-secondary);
    }

    /* Cell 3 specific: ensure it looks like a tag if needed */
    .credits-pill {
        padding: 0.1rem 0.5rem;
        font-size: 0.75rem;
        background-color: var(--bg-color);
        border: 1px solid var(--border-color);
    }

    /* Cell 4: Status */
    .grades-table td:nth-child(4) {
        margin-top: 0.25rem;
    }

    /* Cell 5: Grade - Top Right Absolute */
    .grades-table td:last-child {
        position: absolute;
        top: 1rem;
        right: 1rem;
        width: auto;
    }

    .grade-badge {
        font-size: 1.1rem;
        width: 40px;
        height: 40px;
    }
}