/* سیستم گروه‌بندی دانشجویان - طراحی مدرن فارسی */

@import url('https://fonts.googleapis.com/css2?family=Vazirmatn:wght@300;400;500;600;700&display=swap');

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

:root {
    --primary-color: #381c80;
    --primary-dark: #2a1560;
    --secondary-color: #1e3a8a;
    --accent-color: #5b21b6;
    --success-color: #10b981;
    --warning-color: #f59e0b;
    --danger-color: #ef4444;
    --text-dark: #1f2937;
    --text-light: #6b7280;
    --bg-light: #f8fafc;
    --bg-white: #ffffff;
    --border-color: #e2e8f0;
    --shadow-sm: 0 1px 2px 0 rgba(56, 28, 128, 0.05);
    --shadow-md: 0 4px 6px -1px rgba(56, 28, 128, 0.1), 0 2px 4px -1px rgba(56, 28, 128, 0.06);
    --shadow-lg: 0 10px 15px -3px rgba(56, 28, 128, 0.15), 0 4px 6px -2px rgba(56, 28, 128, 0.08);
    --shadow-xl: 0 20px 25px -5px rgba(56, 28, 128, 0.2), 0 10px 10px -5px rgba(56, 28, 128, 0.1);
}

body {
    font-family: 'Vazirmatn', sans-serif;
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--secondary-color) 100%);
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 20px;
    color: var(--text-dark);
    line-height: 1.8;
    direction: rtl;
    text-align: right;
}

/* صفحات مختلف با تصاویر پس‌زمینه */
body.login-page {
    background: url('images/blueBackground.jpg') no-repeat center center fixed;
    background-size: cover;
}

body.dashboard-page {
    background: url('images/darkBlueMixed.png') no-repeat center center fixed;
    background-size: cover;
    align-items: flex-start;
}

body.teacher-page {
    background: url('images/darkBluePlain.jpg') no-repeat center center fixed;
    background-size: cover;
    align-items: flex-start;
}

/* اور‌لی برای خوانایی بهتر متن */
body.login-page::before,
body.dashboard-page::before,
body.teacher-page::before {
    content: '';
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(56, 28, 128, 0.15);
    z-index: -1;
}

/* انیمیشن‌ها */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes spin {
    to { transform: rotate(360deg); }
}

/* کانتینرها */
.container {
    background: rgba(255, 255, 255, 0.98);
    backdrop-filter: blur(10px);
    border-radius: 20px;
    box-shadow: var(--shadow-xl);
    padding: 35px;
    max-width: 480px;
    width: 100%;
    animation: fadeInUp 0.5s ease;
    border: 1px solid rgba(255, 255, 255, 0.3);
}

.dashboard-container {
    max-width: 1150px;
    padding: 25px;
    background: transparent;
    box-shadow: none;
    border: none;
}

/* لوگو و هدر */
.logo-section {
    text-align: center;
    margin-bottom: 20px;
}

.logo-section img {
    max-width: 200px;
    height: auto;
    margin-bottom: 15px;
}

.header {
    text-align: center;
    margin-bottom: 25px;
}

.header h1 {
    font-size: 1.7rem;
    font-weight: 700;
    color: var(--primary-color);
    margin-bottom: 8px;
}

.header p {
    color: var(--text-light);
    font-size: 0.95rem;
}

/* انتخاب نقش */
.role-selector {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 12px;
    margin-bottom: 20px;
}

.role-option {
    padding: 18px 12px;
    border: 2px solid var(--border-color);
    border-radius: 12px;
    text-align: center;
    cursor: pointer;
    transition: all 0.3s ease;
    background: var(--bg-white);
}

.role-option:hover {
    border-color: var(--primary-color);
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

.role-option.selected {
    border-color: var(--primary-color);
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--secondary-color) 100%);
    color: white;
}

.role-option .icon {
    font-size: 2.2rem;
    margin-bottom: 8px;
}

.role-option h3 {
    font-size: 0.95rem;
    font-weight: 600;
}

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

.form-group label {
    display: block;
    font-weight: 600;
    margin-bottom: 8px;
    color: var(--text-dark);
    font-size: 0.9rem;
}

.form-group input,
.form-group select,
.form-group textarea {
    width: 100%;
    padding: 12px 15px;
    border: 2px solid var(--border-color);
    border-radius: 10px;
    font-size: 0.95rem;
    transition: all 0.3s ease;
    background: var(--bg-white);
    font-family: 'Vazirmatn', sans-serif;
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(56, 28, 128, 0.1);
}

.form-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 15px;
}

/* دکمه‌ها */
.btn {
    width: 100%;
    padding: 13px 20px;
    border: none;
    border-radius: 10px;
    font-size: 0.95rem;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
    text-align: center;
    text-decoration: none;
    display: inline-block;
    font-family: 'Vazirmatn', sans-serif;
}

/* دکمه‌های جمع‌وجور که در وسط کانتینر قرار می‌گیرند (یک سوم/نیم عرض) */
.btn--compact {
    display: block;
    width: 33%;
    max-width: 360px;
    min-width: 160px;
    margin: 0.35rem auto;
    padding: 10px 12px;
    border-radius: 10px;
}

.btn-primary {
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--secondary-color) 100%);
    color: white;
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
}

.btn-primary:active {
    transform: translateY(0);
}

.btn-secondary {
    background: var(--bg-light);
    color: var(--text-dark);
    border: 2px solid var(--border-color);
}

.btn-secondary:hover {
    background: var(--border-color);
}

.btn-success {
    background: linear-gradient(135deg, #10b981 0%, #059669 100%);
    color: white;
}

.btn-success:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
}

/* کارت‌ها */
.card {
    background: rgba(255, 255, 255, 0.98);
    backdrop-filter: blur(10px);
    border-radius: 16px;
    padding: 22px;
    margin-bottom: 18px;
    border: 1px solid rgba(255, 255, 255, 0.4);
    box-shadow: 0 8px 32px rgba(56, 28, 128, 0.12);
    transition: all 0.3s ease;
}

/* Header card tweaks: centered title and positioned logout button */
.header-card {
    padding-top: 14px;
    padding-bottom: 14px;
}

.header-card .logout-btn {
    position: absolute;
    right: 18px; /* put logout on the right like previous layout */
    top: 14px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 8px 12px;
    color: var(--text-dark);
    background: var(--bg-light);
    border: 1px solid var(--border-color);
    border-radius: 10px;
    text-decoration: none;
    font-weight: 700;
    transition: all 0.18s ease;
}

.header-card .logout-btn:hover {
    background: rgba(56, 28, 128, 0.04);
    transform: translateY(-2px);
}

/* two-column grid used in teacher page to align cards horizontally */
.two-col-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 16px;
}

@media (max-width: 900px) {
    .two-col-grid {
        grid-template-columns: 1fr;
    }
}

/* small inline button variant for header logout when needed */
.btn--small {
    display: inline-block;
    width: auto;
    padding: 8px 12px;
}

/* Group results layout */
#groupResultsList {
    display: flex;
    gap: 16px;
    flex-wrap: wrap;
}

.group-card {
    flex: 1 1 calc(50% - 16px);
    max-width: calc(50% - 16px);
    box-sizing: border-box;
    padding: 18px;
    background: var(--bg-light);
    border-radius: 12px;
    border-right: 4px solid var(--primary-color);
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.group-card-header {
    color: var(--primary-color);
    margin: 0;
    font-size: 1.05rem;
}

.group-reasoning {
    color: var(--text-light);
    font-size: 0.9rem;
    margin: 0;
}

.group-members-list {
    list-style: none;
    padding: 0;
    margin: 0;
    max-height: 220px;
    overflow: auto;
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.group-member-item {
    padding: 10px;
    background: white;
    border-radius: 8px;
    font-size: 0.9rem;
}

@media (max-width: 900px) {
    .group-card {
        flex-basis: 100%;
        max-width: 100%;
    }
}

/* cap the overall results area so it doesn't push the whole page too far; individual groups scroll internally */
#groupResultsCard .card-body {
    max-height: 520px;
    overflow: auto;
}

.card:hover {
    box-shadow: 0 12px 40px rgba(56, 28, 128, 0.18);
    transform: translateY(-3px);
}

.card-header {
    font-size: 1.15rem;
    font-weight: 700;
    color: var(--primary-color);
    margin-bottom: 15px;
    display: flex;
    align-items: center;
    gap: 8px;
}

.card-body {
    color: var(--text-dark);
}

/* اطلاعات نمایشی */
.info-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(140px, 1fr));
    gap: 12px;
    margin-bottom: 15px;
}

.info-display {
    background: var(--bg-light);
    padding: 12px 15px;
    border-radius: 10px;
    border-right: 3px solid var(--primary-color);
}

.info-display .label {
    font-weight: 500;
    color: var(--text-light);
    font-size: 0.8rem;
    margin-bottom: 4px;
}

.info-display .value {
    font-size: 1.05rem;
    color: var(--text-dark);
    font-weight: 700;
}

/* لینک‌های تست */
.links-section {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 12px;
    margin-bottom: 15px;
}

.external-link {
    padding: 16px 12px;
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--secondary-color) 100%);
    border: none;
    border-radius: 12px;
    text-align: center;
    text-decoration: none;
    color: white;
    font-weight: 600;
    transition: all 0.3s ease;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 6px;
    font-size: 0.9rem;
    box-shadow: 0 4px 12px rgba(56, 28, 128, 0.2);
}

.external-link:hover {
    transform: translateY(-3px);
    box-shadow: 0 8px 20px rgba(56, 28, 128, 0.3);
    background: linear-gradient(135deg, var(--primary-dark) 0%, var(--primary-color) 100%);
}

.external-link .icon {
    font-size: 1.8rem;
}

/* هشدارها */
.alert {
    padding: 12px 16px;
    border-radius: 10px;
    margin-bottom: 15px;
    font-weight: 500;
    font-size: 0.9rem;
}

.alert-info {
    background: rgba(56, 28, 128, 0.1);
    color: var(--primary-color);
    border: 1px solid rgba(56, 28, 128, 0.3);
}

.alert-success {
    background: rgba(16, 185, 129, 0.1);
    color: var(--success-color);
    border: 1px solid rgba(16, 185, 129, 0.3);
}

.alert-warning {
    background: rgba(245, 158, 11, 0.1);
    color: var(--warning-color);
    border: 1px solid rgba(245, 158, 11, 0.3);
}

/* آمار */
.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
    gap: 15px;
    margin-bottom: 20px;
}

.stat-card {
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--secondary-color) 100%);
    color: white;
    padding: 20px;
    border-radius: 12px;
    text-align: center;
}

.stat-card .stat-value {
    font-size: 2.2rem;
    font-weight: 700;
    margin-bottom: 5px;
}

.stat-card .stat-label {
    font-size: 0.9rem;
    opacity: 0.95;
}

/* لیست گروه */
.group-list {
    list-style: none;
}

.group-member {
    background: var(--bg-light);
    padding: 12px 15px;
    border-radius: 10px;
    margin-bottom: 10px;
    display: flex;
    align-items: center;
    gap: 12px;
    transition: all 0.3s ease;
}

.group-member:hover {
    background: var(--border-color);
    transform: translateX(5px);
}

.group-member .member-icon {
    font-size: 1.4rem;
}

.group-member .member-info {
    flex: 1;
}

.group-member .member-name {
    font-weight: 600;
    color: var(--text-dark);
    font-size: 0.95rem;
    margin-bottom: 3px;
}

.group-member .member-details {
    font-size: 0.8rem;
    color: var(--text-light);
}

/* چک‌باکس‌ها */
.checkbox-group {
    max-height: 250px;
    overflow-y: auto;
    border: 2px solid var(--border-color);
    border-radius: 10px;
    padding: 8px;
}

.checkbox-item {
    padding: 10px;
    display: flex;
    align-items: center;
    gap: 10px;
    cursor: pointer;
    border-radius: 8px;
    transition: all 0.2s ease;
}

.checkbox-item:hover {
    background: var(--bg-light);
}

.checkbox-item input[type="checkbox"] {
    width: 18px;
    height: 18px;
    cursor: pointer;
}

.checkbox-item label {
    cursor: pointer;
    margin: 0;
    font-weight: 500;
    font-size: 0.9rem;
}

/* لینک بازگشت */
.back-link {
    display: inline-block;
    margin-bottom: 15px;
    color: var(--primary-color);
    text-decoration: none;
    font-weight: 600;
    transition: all 0.3s ease;
    font-size: 0.95rem;
}

.back-link:hover {
    transform: translateX(5px);
}

/* حالت خالی */
.empty-state {
    text-align: center;
    padding: 35px 20px;
}

.empty-state .icon {
    font-size: 3.5rem;
    opacity: 0.3;
    margin-bottom: 15px;
}

.empty-state h3 {
    font-size: 1.2rem;
    color: var(--text-dark);
    margin-bottom: 10px;
}

.empty-state p {
    color: var(--text-light);
    font-size: 0.9rem;
}

/* لودینگ */
.loading {
    display: inline-block;
    width: 20px;
    height: 20px;
    border: 3px solid rgba(255, 255, 255, 0.3);
    border-radius: 50%;
    border-top-color: white;
    animation: spin 1s ease-in-out infinite;
}

/* طراحی ریسپانسیو */
@media (max-width: 768px) {
    .container {
        padding: 25px;
    }
    
    .header h1 {
        font-size: 1.5rem;
    }
    
    .role-selector {
        grid-template-columns: 1fr;
    }
    
    .links-section {
        grid-template-columns: 1fr;
    }
    
    .stats-grid {
        grid-template-columns: 1fr;
    }
    
    .form-row {
        grid-template-columns: 1fr;
    }
    
    .info-grid {
        grid-template-columns: 1fr;
    }
}

@media (min-width: 769px) and (max-width: 1024px) {
    .dashboard-container {
        max-width: 900px;
    }
}

/* تنظیمات اسکرول */
::-webkit-scrollbar {
    width: 8px;
}

::-webkit-scrollbar-track {
    background: var(--bg-light);
}

::-webkit-scrollbar-thumb {
    background: var(--primary-color);
    border-radius: 4px;
}

::-webkit-scrollbar-thumb:hover {
    background: var(--primary-dark);
}

/* ترانزیشن‌های نرم */
a, button, input, select, .role-option, .card, .external-link, .checkbox-item {
    transition: all 0.3s ease;
}