/* HifzHome - Système de Design & CSS */
@import url('https://fonts.googleapis.com/css2?family=Outfit:wght@300;400;500;600;700&display=swap');

:root {
    --primary: hsl(152, 60%, 18%);
    --primary-light: hsl(152, 45%, 28%);
    --primary-hover: hsl(152, 55%, 22%);
    --accent: hsl(42, 85%, 52%);
    --accent-light: hsl(42, 90%, 94%);
    --bg-cream: hsl(38, 25%, 96%);
    --bg-card: hsl(0, 0%, 100%);
    --text-main: hsl(210, 15%, 15%);
    --text-muted: hsl(210, 8%, 45%);
    --border-color: hsl(38, 18%, 88%);
    
    /* Alerts */
    --success: hsl(142, 50%, 30%);
    --success-light: hsl(142, 50%, 55%);
    --danger: hsl(0, 75%, 40%);
    --danger-light: hsl(0, 75%, 65%);
    --warning: hsl(36, 100%, 40%);
    --warning-light: hsl(36, 100%, 65%);
    --info: hsl(200, 70%, 35%);
    --info-light: hsl(200, 70%, 60%);

    /* Radii & Elevation Shadows */
    --radius-sm: 8px;
    --radius-md: 14px;
    --radius-lg: 24px;
    --shadow-sm: 0 2px 6px rgba(0,0,0,0.03);
    --shadow-md: 0 10px 25px rgba(27, 43, 33, 0.06);
    --shadow-lg: 0 20px 40px rgba(27, 43, 33, 0.1);
    
    --transition: all 0.25s cubic-bezier(0.4, 0, 0.2, 1);
}

/* Reset & Base */
* {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

html {
    scroll-behavior: smooth;
    -webkit-text-size-adjust: 100%;
    overflow-y: scroll;
}

body {
    font-family: 'Outfit', sans-serif;
    background-color: var(--bg-cream);
    color: var(--text-main);
    line-height: 1.6;
    -webkit-font-smoothing: antialiased;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
}

a {
    color: var(--primary-light);
    text-decoration: none;
    transition: var(--transition);
}

a:hover {
    color: var(--accent);
}

/* Layout */
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 24px 20px;
    flex: 1;
    width: 100%;
}

header {
    background-color: var(--primary);
    color: #fff;
    padding: 15px 0;
    box-shadow: var(--shadow-sm);
    position: sticky;
    top: 0;
    z-index: 100;
}

.nav-container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

.brand {
    font-weight: 700;
    font-size: 1.45rem;
    color: #fff;
    display: flex;
    align-items: center;
    gap: 8px;
}

.brand span {
    color: var(--accent);
}

.nav-links {
    display: flex;
    gap: 18px;
    align-items: center;
    list-style: none;
}

.nav-links a {
    color: hsla(0, 0%, 100%, 0.88);
    font-weight: 500;
    padding: 4px 8px;
    border-radius: var(--radius-sm);
    transition: var(--transition);
}

.nav-links a:hover, .nav-links .active {
    color: var(--accent);
}

.user-tag {
    background-color: var(--primary-light);
    color: #fff;
    padding: 5px 12px;
    border-radius: 20px;
    font-size: 0.85rem;
    border: 1px solid var(--accent);
}

.user-tag:hover {
    background-color: var(--primary-hover);
    color: #fff;
}

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 10px 20px;
    border-radius: var(--radius-sm);
    font-weight: 600;
    cursor: pointer;
    border: none;
    transition: var(--transition);
    font-size: 0.95rem;
    gap: 8px;
    text-decoration: none;
}

.btn:hover {
    transform: translateY(-1px);
}

.btn-primary {
    background-color: var(--primary);
    color: #fff;
    border: 1px solid var(--primary);
}

.btn-primary:hover {
    background-color: var(--primary-light);
    color: #fff;
}

.btn-secondary {
    background-color: transparent;
    color: var(--primary);
    border: 1.5px solid var(--primary);
}

.btn-secondary:hover {
    background-color: var(--primary);
    color: #fff;
}

.btn-accent {
    background-color: var(--accent);
    color: var(--primary);
    border: 1px solid var(--accent);
}

.btn-accent:hover {
    background-color: hsl(43, 85%, 45%);
}

.btn-danger {
    background-color: var(--danger);
    color: #fff;
}

.btn-danger:hover {
    background-color: hsl(0, 75%, 32%);
}

/* Alerts messages */
.messages {
    list-style: none;
    margin-bottom: 20px;
}

.alert {
    padding: 14px 20px;
    border-radius: var(--radius-sm);
    margin-bottom: 10px;
    font-weight: 500;
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.alert-success {
    background-color: hsl(142, 60%, 93%);
    color: var(--success);
    border-left: 5px solid var(--success);
}

.alert-error, .alert-danger {
    background-color: hsl(0, 75%, 95%);
    color: var(--danger);
    border-left: 5px solid var(--danger);
}

.alert-warning {
    background-color: hsl(40, 100%, 93%);
    color: var(--warning);
    border-left: 5px solid var(--warning);
}

.alert-info {
    background-color: hsl(200, 70%, 93%);
    color: var(--info);
    border-left: 5px solid var(--info);
}

/* Cards */
.card {
    background-color: var(--bg-card);
    border-radius: var(--radius-md);
    padding: 24px;
    box-shadow: var(--shadow-md);
    border: 1px solid var(--border-color);
    margin-bottom: 20px;
    transition: var(--transition);
    width: 100%;
    max-width: 100%;
    min-width: 0;
    box-sizing: border-box;
    overflow-x: auto;
    -webkit-overflow-scrolling: touch;
}

.card:hover {
    box-shadow: var(--shadow-lg);
}

.card-title {
    font-size: 1.25rem;
    font-weight: 600;
    margin-bottom: 15px;
    color: var(--primary);
    border-bottom: 2px solid var(--bg-cream);
    padding-bottom: 8px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 10px;
}

/* Dashboard Grid */
.dashboard-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 20px;
    margin-bottom: 30px;
    width: 100%;
    max-width: 100%;
}

.dashboard-grid > * {
    min-width: 0;
    max-width: 100%;
}

.stat-card {
    background: var(--bg-card);
    border-radius: var(--radius-md);
    padding: 20px;
    border-left: 5px solid var(--primary);
    box-shadow: var(--shadow-sm);
    display: flex;
    flex-direction: column;
    justify-content: center;
    transition: var(--transition);
}

.stat-card:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

.stat-card.accent {
    border-left-color: var(--accent);
}

.stat-card.danger {
    border-left-color: var(--danger);
}

.stat-card.warning {
    border-left-color: var(--warning);
}

.stat-title {
    font-size: 0.88rem;
    color: var(--text-muted);
    text-transform: uppercase;
    font-weight: 600;
    letter-spacing: 0.5px;
}

.stat-value {
    font-size: 2.1rem;
    font-weight: 700;
    color: var(--primary-light);
    margin-top: 5px;
}

/* Form Styles */
.form-group {
    margin-bottom: 18px;
}

.form-group label {
    display: block;
    margin-bottom: 6px;
    font-weight: 600;
    font-size: 0.95rem;
}

.form-control, .form-select {
    width: 100%;
    padding: 10px 14px;
    border: 1.5px solid var(--border-color);
    border-radius: var(--radius-sm);
    font-family: inherit;
    font-size: 0.95rem;
    color: var(--text-main);
    background-color: #fff;
    transition: var(--transition);
}

.form-control:focus, .form-select:focus {
    outline: none;
    border-color: var(--primary);
    box-shadow: 0 0 0 3px hsla(152, 60%, 18%, 0.12);
}

.form-check-group {
    display: flex;
    align-items: center;
    gap: 10px;
    margin-bottom: 15px;
}

.form-check-input {
    width: 18px;
    height: 18px;
    accent-color: var(--primary);
}

.help-text {
    font-size: 0.8rem;
    color: var(--text-muted);
    margin-top: 4px;
    display: block;
}

/* Tables */
.table-responsive {
    overflow-x: auto;
    margin-bottom: 20px;
    border-radius: var(--radius-sm);
    -webkit-overflow-scrolling: touch;
}

table {
    width: 100%;
    border-collapse: collapse;
    margin: 10px 0;
    font-size: 0.95rem;
    text-align: left;
}

th {
    background-color: var(--primary);
    color: #fff;
    padding: 12px 16px;
    font-weight: 600;
}

th:first-child {
    border-top-left-radius: var(--radius-sm);
}

th:last-child {
    border-top-right-radius: var(--radius-sm);
}

td {
    padding: 12px 16px;
    border-bottom: 1px solid var(--border-color);
    background-color: #fff;
}

tr:hover td {
    background-color: hsl(38, 20%, 94%);
}

/* Teacher student list */
.student-list-tools {
    display: grid;
    gap: 12px;
    margin-bottom: 20px;
}

.student-search-input {
    max-width: 440px;
}

.student-group-filter-form {
    margin: 0;
}

.student-group-filter-form fieldset {
    border: 0;
    margin: 0;
    padding: 0;
}

.student-group-filter-options {
    grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
    margin-bottom: 8px;
}

.student-filter-actions {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
}

.student-visible-count {
    color: var(--text-muted);
    font-size: 0.85rem;
    font-weight: 600;
}

.sr-only {
    clip: rect(0, 0, 0, 0);
    clip-path: inset(50%);
    height: 1px;
    overflow: hidden;
    position: absolute;
    white-space: nowrap;
    width: 1px;
}

.student-actions {
    display: flex;
    gap: 7px;
}

.student-actions .btn {
    font-size: 0.82rem;
    padding: 7px 10px;
    white-space: nowrap;
}

.student-search-empty,
.student-server-empty {
    color: var(--text-muted);
    padding: 24px;
    text-align: center;
}

/* Badges */
.badge {
    display: inline-block;
    padding: 4px 10px;
    border-radius: 12px;
    font-size: 0.8rem;
    font-weight: 600;
    text-transform: uppercase;
}

.badge-assigned { background-color: #e2e8f0; color: #475569; }
.badge-presented { background-color: #dbeafe; color: #1e40af; }
.badge-not_presented { background-color: #fee2e2; color: #991b1b; }
.badge-review { background-color: #fef3c7; color: #92400e; }
.badge-validated { background-color: #d1fae5; color: #065f46; }
.badge-fragile { background-color: #ffedd5; color: #c2410c; }
.badge-validated_home { background-color: #d1fae5; color: #065f46; }
.badge-done { background-color: #dbeafe; color: #1e40af; }
.badge-not_validated { background-color: #fee2e2; color: #991b1b; }

/* Status Text colors */
.status-indicator {
    display: flex;
    align-items: center;
    gap: 6px;
    font-weight: 600;
}

.status-dot {
    width: 10px;
    height: 10px;
    border-radius: 50%;
}

.status-dot.validated { background-color: var(--success); }
.status-dot.fragile { background-color: var(--warning); }
.status-dot.review { background-color: var(--danger); }
.status-dot.assigned { background-color: var(--text-muted); }

/* Login Page specific styling */
.login-wrapper {
    display: flex;
    justify-content: center;
    align-items: center;
    min-height: calc(100vh - 140px);
}

.login-card {
    width: 100%;
    max-width: 420px;
    background: #ffffff;
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-lg);
    border: 1px solid var(--border-color);
    padding: 40px 30px;
}

.login-header {
    text-align: center;
    margin-bottom: 30px;
}

.login-header h1 {
    font-size: 1.8rem;
    color: var(--primary);
    margin-bottom: 5px;
}

/* History logs timeline */
.timeline {
    position: relative;
    padding-left: 20px;
    border-left: 2px solid var(--border-color);
}

.timeline-item {
    position: relative;
    margin-bottom: 20px;
}

.timeline-item::before {
    content: '';
    position: absolute;
    left: -27px;
    top: 5px;
    width: 12px;
    height: 12px;
    border-radius: 50%;
    background-color: var(--primary-light);
    border: 2px solid var(--bg-cream);
}

.timeline-item.validated::before { background-color: var(--success); }
.timeline-item.review::before { background-color: var(--danger); }
.timeline-item.fragile::before { background-color: var(--warning); }

.timeline-date {
    font-size: 0.8rem;
    color: var(--text-muted);
    font-weight: 500;
}

/* Responsive Media Queries */
@media (max-width: 768px) {
    .nav-container {
        flex-direction: column;
        gap: 12px;
        text-align: center;
    }
    
    .nav-links {
        flex-wrap: wrap;
        justify-content: center;
        gap: 10px;
    }
    
    .dashboard-grid, [style*="grid-template-columns"] {
        grid-template-columns: 1fr !important;
        gap: 15px !important;
    }
    
    .card {
        padding: 16px;
        overflow-x: auto;
        -webkit-overflow-scrolling: touch;
    }

    .container {
        padding: 16px 12px;
    }

    .table-responsive, .progression-tab-content {
        overflow-x: auto;
        -webkit-overflow-scrolling: touch;
        max-width: 100%;
    }

    .teacher-student-list {
        max-height: none !important;
        overflow: visible !important;
    }

    .teacher-student-list table,
    .teacher-student-list tbody,
    .teacher-student-list tr {
        display: block;
        width: 100%;
    }

    .teacher-student-list table {
        margin: 0;
    }

    .teacher-student-list thead {
        display: none;
    }

    .teacher-student-list .student-list-row {
        background: #fff;
        border: 1px solid var(--border-color);
        border-left: 4px solid var(--primary-light);
        border-radius: var(--radius-sm);
        box-shadow: var(--shadow-sm);
        margin-bottom: 12px;
        padding: 14px;
    }

    .teacher-student-list .student-list-row[hidden] {
        display: none;
    }

    .teacher-student-list .student-list-row td {
        display: none;
    }

    .teacher-student-list .student-name-cell,
    .teacher-student-list .student-actions-cell {
        background: transparent;
        border: 0;
        display: block !important;
        padding: 0;
    }

    .teacher-student-list .student-server-empty {
        border: 1px solid var(--border-color);
        border-radius: var(--radius-sm);
        display: block;
    }

    .teacher-student-list .student-name-cell {
        margin-bottom: 12px;
    }

    .student-actions {
        display: grid;
        gap: 8px;
        grid-template-columns: repeat(2, minmax(0, 1fr));
    }

    .student-actions .btn {
        align-items: center;
        display: inline-flex;
        font-size: 0.85rem;
        justify-content: center;
        min-height: 44px;
        padding: 9px 8px;
        text-align: center;
        white-space: normal;
    }

    .student-detail-action {
        grid-column: 1 / -1;
    }

    .student-filter-actions .btn {
        flex: 1 1 100%;
        min-height: 44px;
    }
}
.notification-badge {
    display: inline-flex;
    min-width: 19px;
    height: 19px;
    padding: 0 6px;
    align-items: center;
    justify-content: center;
    border-radius: 999px;
    background: var(--danger, #dc2626);
    color: #fff;
    font-size: 0.7rem;
    font-weight: 700;
    line-height: 1;
    vertical-align: middle;
}