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

html {
    font-size: 16px;
    scroll-behavior: smooth;
}

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    line-height: 1.6;
    color: var(--text-primary);
    background: var(--background-primary);
    transition: all 0.3s ease;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
}

/* ============================ CSS Custom Properties ============================ */
:root {
    /* Colors */
    --primary-color: #2563eb;
    --primary-hover: #1d4ed8;
    --primary-light: #dbeafe;
    --secondary-color: #64748b;
    --accent-color: #f59e0b;
    --success-color: #10b981;
    --warning-color: #f59e0b;
    --danger-color: #ef4444;
    --info-color: #06b6d4;
    /* Text Colors */
    --text-primary: #1f2937;
    --text-secondary: #6b7280;
    --text-muted: #9ca3af;
    --text-inverse: #ffffff;
    /* Background Colors */
    --background-primary: #ffffff;
    --background-secondary: #f9fafb;
    --background-tertiary: #f3f4f6;
    --background-overlay: rgba(0, 0, 0, 0.5);
    /* Border Colors */
    --border-primary: #e5e7eb;
    --border-secondary: #d1d5db;
    --border-focus: #3b82f6;
    /* Shadows */
    --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
    --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 10px 10px -5px rgba(0, 0, 0, 0.04);
    /* Spacing */
    --spacing-xs: 0.25rem;
    --spacing-sm: 0.5rem;
    --spacing-md: 1rem;
    --spacing-lg: 1.5rem;
    --spacing-xl: 2rem;
    --spacing-xxl: 3rem;
    /* Border Radius */
    --radius-sm: 0.25rem;
    --radius-md: 0.5rem;
    --radius-lg: 0.75rem;
    --radius-xl: 1rem;
    /* Transitions */
    --transition-fast: 0.15s ease;
    --transition-normal: 0.3s ease;
    --transition-slow: 0.5s ease;
    /* Z-index */
    --z-dropdown: 1000;
    --z-sticky: 1010;
    --z-fixed: 1020;
    --z-modal: 1030;
    --z-popover: 1040;
    --z-tooltip: 1050;
    --z-toast: 1060;
}

/* Dark theme support */
[data-theme="dark"] {
    --text-primary: #f9fafb;
    --text-secondary: #d1d5db;
    --text-muted: #9ca3af;
    --background-primary: #111827;
    --background-secondary: #1f2937;
    --background-tertiary: #374151;
    --border-primary: #374151;
    --border-secondary: #4b5563;
}

/* RTL Support */
[dir="rtl"] {
    text-align: right;
}
   

/* ============================ Loading & Animation Styles ============================ */
@keyframes spin {
    0% {
        transform: rotate(0deg);
    }

    100% {
        transform: rotate(360deg);
    }
}

@keyframes pulse {
    0%, 100% {
        opacity: 1;
    }

    50% {
        opacity: 0.5;
    }
}

@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(10px);
    }

    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes slideInRight {
    from {
        transform: translateX(100%);
    }

    to {
        transform: translateX(0);
    }
}

@keyframes slideInLeft {
    from {
        transform: translateX(-100%);
    }

    to {
        transform: translateX(0);
    }
}

@keyframes bounce {
    0%, 20%, 53%, 80%, 100% {
        transform: translateY(0);
    }

    40%, 43% {
        transform: translateY(-30px);
    }

    70% {
        transform: translateY(-15px);
    }

    90% {
        transform: translateY(-4px);
    }
}

/* Loading Spinner */
.spinner {
    border: 4px solid var(--border-primary);
    border-top: 4px solid var(--primary-color);
    border-radius: 50%;
    width: 40px;
    height: 40px;
    animation: spin 1s linear infinite;
    margin: 0 auto;
}

.loading {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: var(--spacing-xxl);
    color: var(--text-secondary);
}

.loading-placeholder {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    min-height: 60vh;
    animation: fadeIn 0.5s ease;
}

/* ============================ Header Styles ============================ */
.header {
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--primary-hover) 100%);
    color: var(--text-inverse);
    padding: var(--spacing-md) 0;
    box-shadow: var(--shadow-md);
    position: sticky;
    top: 0;
    z-index: var(--z-sticky);
    backdrop-filter: blur(10px);
}

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

.logo h1 {
    font-size: 1.5rem;
    font-weight: 700;
    margin-bottom: var(--spacing-xs);
}

.logo p {
    font-size: 0.875rem;
    opacity: 0.9;
}

.header-actions {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
}

.language-toggle {
    background: rgba(255, 255, 255, 0.1);
    border: 1px solid rgba(255, 255, 255, 0.2);
    color: var(--text-inverse);
    padding: var(--spacing-sm);
    border-radius: var(--radius-md);
    cursor: pointer;
    transition: all var(--transition-fast);
    font-weight: 600;
    min-width: 40px;
}

    .language-toggle:hover {
        background: rgba(255, 255, 255, 0.2);
        transform: scale(1.05);
    }

.logout-btn {
    background: var(--danger-color);
    border: none;
    color: var(--text-inverse);
    padding: var(--spacing-sm) var(--spacing-md);
    border-radius: var(--radius-md);
    cursor: pointer;
    transition: all var(--transition-fast);
    font-size: 0.875rem;
}

    .logout-btn:hover {
        background: #dc2626;
        transform: translateY(-1px);
    }

.login-btn {
    background: var(--accent-color);
    border: none;
    color: var(--text-inverse);
    padding: var(--spacing-sm) var(--spacing-md);
    border-radius: var(--radius-md);
    cursor: pointer;
    transition: all var(--transition-fast);
    font-size: 0.875rem;
}

    .login-btn:hover {
        background: #dc2626;
        transform: translateY(-1px);
    }

/* ============================ Main Content Styles ============================ */
.main-content {
    flex: 1;
    padding: var(--spacing-xl) var(--spacing-md);
    max-width: 1200px;
    margin: 0 auto;
    width: 100%;
    animation: fadeIn 0.5s ease;
}

/* ============================ Button Styles ============================ */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-sm);
    padding: var(--spacing-sm) var(--spacing-lg);
    border: none;
    border-radius: var(--radius-md);
    font-size: 0.875rem;
    font-weight: 500;
    cursor: pointer;
    transition: all var(--transition-fast);
    text-decoration: none;
    min-height: 44px; /* Accessibility: minimum touch target */
}

    .btn:disabled {
        opacity: 0.6;
        cursor: not-allowed;
        transform: none !important;
    }

.btn-primary {
    background: var(--primary-color);
    color: var(--text-inverse);
}

    .btn-primary:hover:not(:disabled) {
        background: var(--primary-hover);
        transform: translateY(-1px);
        box-shadow: var(--shadow-md);
    }

.btn-secondary {
    background: var(--secondary-color);
    color: var(--text-inverse);
}

    .btn-secondary:hover:not(:disabled) {
        background: #475569;
        transform: translateY(-1px);
    }

.btn-success {
    background: var(--success-color);
    color: var(--text-inverse);
}

    .btn-success:hover:not(:disabled) {
        background: #059669;
        transform: translateY(-1px);
    }

.btn-warning {
    background: var(--warning-color);
    color: var(--text-inverse);
}

    .btn-warning:hover:not(:disabled) {
        background: #d97706;
        transform: translateY(-1px);
    }

.btn-danger {
    background: var(--danger-color);
    color: var(--text-inverse);
}

    .btn-danger:hover:not(:disabled) {
        background: #dc2626;
        transform: translateY(-1px);
    }

.btn-small {
    padding: var(--spacing-xs) var(--spacing-sm);
    font-size: 0.75rem;
    min-height: 32px;
}

/* Button Groups */
.btn-group {
    display: flex;
    gap: var(--spacing-sm);
    flex-wrap: wrap;
}

/* ============================ Form Styles ============================ */
.form {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-lg);
    max-width: 400px;
    margin: 0 auto;
    padding: var(--spacing-xl);
    background: var(--background-primary);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-lg);
    animation: fadeIn 0.5s ease;
}

.form-group {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-sm);
}

.form-label {
    font-weight: 600;
    color: var(--text-primary);
    font-size: 0.875rem;
}

.form-input,
.form-select,
.form-textarea {
    padding: var(--spacing-sm) var(--spacing-md);
    border: 2px solid var(--border-primary);
    border-radius: var(--radius-md);
    font-size: 1rem;
    transition: all var(--transition-fast);
    background: var(--background-primary);
    color: var(--text-primary);
}

    .form-input:focus,
    .form-select:focus,
    .form-textarea:focus {
        outline: none;
        border-color: var(--border-focus);
        box-shadow: 0 0 0 3px rgba(59, 130, 246, 0.1);
    }

    .form-input:invalid {
        border-color: var(--danger-color);
    }

.form-error {
    color: var(--danger-color);
    font-size: 0.75rem;
    margin-top: var(--spacing-xs);
}

.score-input {
    width: 80px;
    padding: var(--spacing-xs) var(--spacing-sm);
    border: 1px solid var(--border-primary);
    border-radius: var(--radius-sm);
    text-align: center;
    font-size: 0.875rem;
    transition: all var(--transition-fast);
}

    .score-input:focus {
        border-color: var(--border-focus);
        box-shadow: 0 0 0 2px rgba(59, 130, 246, 0.1);
    }

/* ============================ Table Styles ============================ */
.table-container {
    overflow-x: auto;
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-md);
    background: var(--background-primary);
    margin: var(--spacing-lg) 0;
}

.table {
    width: 100%;
    border-collapse: collapse;
    font-size: 0.875rem;
}

    .table th,
    .table td {
        padding: var(--spacing-md);
        text-align: left;
        border-bottom: 1px solid var(--border-primary);
    }

[dir="rtl"] .table th,
[dir="rtl"] .table td {
    text-align: right;
}

.table th {
    background: var(--background-secondary);
    font-weight: 600;
    color: var(--text-primary);
    position: sticky;
    top: 0;
    z-index: 10;
}

.table tbody tr {
    transition: background-color var(--transition-fast);
}

    .table tbody tr:hover {
        background: var(--background-secondary);
    }

    .table tbody tr:nth-child(even) {
        background: var(--background-tertiary);
    }

        .table tbody tr:nth-child(even):hover {
            background: var(--background-secondary);
        }

.members-table {
    margin-top: var(--spacing-lg);
}

.no-members {
    text-align: center;
    color: var(--text-muted);
    font-style: italic;
    padding: var(--spacing-xl);
}

/* ============================ Card Styles ============================ */
.card {
    background: var(--background-primary);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-md);
    padding: var(--spacing-lg);
    margin-bottom: var(--spacing-lg);
    transition: all var(--transition-normal);
    animation: fadeIn 0.5s ease;
}

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

.card-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: var(--spacing-lg);
    padding-bottom: var(--spacing-md);
    border-bottom: 2px solid var(--border-primary);
}

.card-title {
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--text-primary);
    margin: 0;
}

/* ============================ Leaderboard Styles ============================ */
.leaderboard-container {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: var(--spacing-xl);
    margin: var(--spacing-xl) 0;
}

.leaderboard-section {
    background: var(--background-primary);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-md);
    overflow: hidden;
    animation: fadeIn 0.5s ease;
}

.leaderboard-header {
    background: linear-gradient(135deg, var(--primary-color), var(--primary-hover));
    color: var(--text-inverse);
    padding: var(--spacing-lg);
    text-align: center;
}

    .leaderboard-header h3 {
        font-size: 1.25rem;
        font-weight: 700;
        margin: 0;
    }

.leaderboard-content {
    padding: var(--spacing-lg);
    max-height: 500px;
    overflow-y: auto;
}

.leaderboard-item {
    display: flex;
    align-items: center;
    padding: var(--spacing-md);
    margin-bottom: var(--spacing-sm);
    background: var(--background-secondary);
    border-radius: var(--radius-md);
    transition: all var(--transition-fast);
    animation: slideInLeft 0.3s ease;
}

    .leaderboard-item:hover {
        background: var(--background-tertiary);
        transform: translateX(5px);
    }

    .leaderboard-item:nth-child(1) {
        background: linear-gradient(135deg, #ffd700, #ffed4e);
        color: #92400e;
        font-weight: 700;
    }

    .leaderboard-item:nth-child(2) {
        background: linear-gradient(135deg, #c0c0c0, #e5e7eb);
        color: #374151;
        font-weight: 600;
    }

    .leaderboard-item:nth-child(3) {
        background: linear-gradient(135deg, #cd7f32, #d97706);
        color: #ffffff;
        font-weight: 600;
    }

.rank {
    font-weight: 700;
    font-size: 1.1rem;
    margin-left: var(--spacing-md);
    min-width: 30px;
}

[dir="rtl"] .rank {
    margin-left: 0;
    margin-right: var(--spacing-md);
}

.name {
    flex: 1;
    font-weight: 500;
    margin: 0 var(--spacing-md);
}

.score {
    font-weight: 700;
    font-size: 1.1rem;
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
}

.trophy {
    font-size: 1.2rem;
    animation: bounce 2s infinite;
}

/* ============================ Admin Styles ============================ */
.admin-container {
    animation: fadeIn 0.5s ease;
}

.admin-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: var(--spacing-xl);
    padding: var(--spacing-lg);
    background: linear-gradient(135deg, var(--primary-color), var(--primary-hover));
    color: var(--text-inverse);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-md);
    flex-wrap: wrap;
    gap: var(--spacing-md);
}

    .admin-header h2 {
        font-size: 1.5rem;
        font-weight: 700;
        margin: 0;
    }

.admin-section {
    background: var(--background-primary);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-md);
    margin-bottom: var(--spacing-xl);
    overflow: hidden;
    animation: fadeIn 0.5s ease;
}

.admin-team-section {
    border: 3px solid var(--warning-color);
    box-shadow: var(--shadow-lg);
}

.team-header {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    padding: var(--spacing-lg);
    background: var(--background-secondary);
    border-bottom: 2px solid var(--border-primary);
    flex-wrap: wrap;
    gap: var(--spacing-md);
}

.team-info h3 {
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: var(--spacing-sm);
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
}

.admin-badge {
    background: var(--warning-color);
    color: var(--text-inverse);
    padding: var(--spacing-xs) var(--spacing-sm);
    border-radius: var(--radius-sm);
    font-size: 0.75rem;
    font-weight: 600;
    text-transform: uppercase;
}

.team-code,
.team-leader {
    font-size: 0.875rem;
    color: var(--text-secondary);
    margin: var(--spacing-xs) 0;
}

.team-actions {
    display: flex;
    flex-wrap: wrap;
    gap: var(--spacing-sm);
    align-items: center;
}

.admin-protected-text {
    color: var(--text-muted);
    font-style: italic;
    font-size: 0.875rem;
}

.members-section {
    padding: var(--spacing-lg);
}

.members-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: var(--spacing-lg);
    flex-wrap: wrap;
    gap: var(--spacing-md);
}

    .members-header h4 {
        font-size: 1.1rem;
        font-weight: 600;
        color: var(--text-primary);
        margin: 0;
    }

.member-row {
    transition: all var(--transition-fast);
}

.admin-team-row {
    background: rgba(245, 158, 11, 0.1) !important;
}

    .admin-team-row:hover {
        background: rgba(245, 158, 11, 0.2) !important;
    }

.action-btns {
    display: flex;
    gap: var(--spacing-xs);
    flex-wrap: wrap;
}

.edit-btn {
    background: var(--info-color);
    color: var(--text-inverse);
    border: none;
    padding: var(--spacing-xs) var(--spacing-sm);
    border-radius: var(--radius-sm);
    cursor: pointer;
    font-size: 0.75rem;
    transition: all var(--transition-fast);
}

    .edit-btn:hover {
        background: #0891b2;
        transform: translateY(-1px);
    }

.delete-btn {
    background: var(--danger-color);
    color: var(--text-inverse);
    border: none;
    padding: var(--spacing-xs) var(--spacing-sm);
    border-radius: var(--radius-sm);
    cursor: pointer;
    font-size: 0.75rem;
    transition: all var(--transition-fast);
}

    .delete-btn:hover {
        background: #dc2626;
        transform: translateY(-1px);
    }

.admin-protected {
    color: var(--text-muted);
    font-size: 0.75rem;
    font-style: italic;
}

.reviewed-score {
    font-size: 0.8em;
    color: var(--success-color);
    margin-top: 2px;
    font-weight: 500;
}

.original-score {
    font-size: 0.8em;
    color: var(--success-color);
    margin-top: 2px;
}

/* ============================ Dashboard Styles ============================ */
.dashboard-container {
    animation: fadeIn 0.5s ease;
}

.dashboard-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: var(--spacing-xl);
    padding: var(--spacing-lg);
    background: linear-gradient(135deg, var(--success-color), #059669);
    color: var(--text-inverse);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-md);
    flex-wrap: wrap;
    gap: var(--spacing-md);
}

    .dashboard-header h2 {
        font-size: 1.5rem;
        font-weight: 700;
        margin: 0;
    }

.team-stats {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: var(--spacing-lg);
    margin-bottom: var(--spacing-xl);
}

.stat-card {
    background: var(--background-primary);
    padding: var(--spacing-lg);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-md);
    text-align: center;
    transition: all var(--transition-fast);
}

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

.stat-value {
    font-size: 2rem;
    font-weight: 700;
    color: var(--primary-color);
    margin-bottom: var(--spacing-sm);
}

.stat-label {
    font-size: 0.875rem;
    color: var(--text-secondary);
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

/* ============================ Toast Notifications ============================ */
.toast-container {
    position: fixed;
    top: var(--spacing-lg);
    right: var(--spacing-lg);
    z-index: var(--z-toast);
    display: flex;
    flex-direction: column;
    gap: var(--spacing-sm);
    max-width: 400px;
}

[dir="rtl"] .toast-container {
    right: auto;
    left: var(--spacing-lg);
}

.toast {
    background: var(--background-primary);
    color: var(--text-primary);
    padding: var(--spacing-md);
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-lg);
    border-left: 4px solid var(--primary-color);
    animation: slideInRight 0.3s ease;
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
}

[dir="rtl"] .toast {
    border-left: none;
    border-right: 4px solid var(--primary-color);
    animation: slideInLeft 0.3s ease;
}

.toast.success {
    border-left-color: var(--success-color);
}

.toast.error {
    border-left-color: var(--danger-color);
}

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

.toast.info {
    border-left-color: var(--info-color);
}

[dir="rtl"] .toast.success {
    border-right-color: var(--success-color);
}

[dir="rtl"] .toast.error {
    border-right-color: var(--danger-color);
}

[dir="rtl"] .toast.warning {
    border-right-color: var(--warning-color);
}

[dir="rtl"] .toast.info {
    border-right-color: var(--info-color);
}

.toast-close {
    background: none;
    border: none;
    color: var(--text-secondary);
    cursor: pointer;
    font-size: 1.2rem;
    padding: 0;
    margin-left: auto;
    transition: color var(--transition-fast);
}

[dir="rtl"] .toast-close {
    margin-left: 0;
    margin-right: auto;
}

.toast-close:hover {
    color: var(--text-primary);
}

/* ============================ Footer Styles ============================ */
.footer {
    background: var(--background-secondary);
    border-top: 1px solid var(--border-primary);
    padding: var(--spacing-lg) 0;
    margin-top: auto;
}

.footer-content {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--spacing-md);
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: var(--spacing-md);
}

.footer-actions {
    display: flex;
    gap: var(--spacing-sm);
    flex-wrap: wrap;
}

.footer p {
    color: var(--text-secondary);
    font-size: 0.875rem;
    margin: 0;
}

/* ============================ Responsive Design ============================ */
@media (max-width: 768px) {
    .header-content {
        flex-direction: column;
        gap: var(--spacing-md);
        text-align: center;
    }   

    .admin-header,
    .dashboard-header {
        flex-direction: column;
        text-align: center;
        gap: var(--spacing-md);
    }

    .team-header {
        flex-direction: column;
        align-items: flex-start;
        gap: var(--spacing-md);
    }

    .team-actions {
        width: 100%;
        justify-content: center;
    }

    .members-header {
        flex-direction: column;
        align-items: flex-start;
        gap: var(--spacing-md);
    }

    .leaderboard-container {
        grid-template-columns: 1fr;
    }

    .team-stats {
        grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
    }

    .table-container {
        font-size: 0.75rem;
    }

    .table th,
    .table td {
        padding: var(--spacing-sm);
    }

    .score-input {
        width: 60px;
        font-size: 0.75rem;
    }

    .footer-content {
        flex-direction: column;
        text-align: center;
        gap: var(--spacing-md);
    }

    .toast-container {
        left: var(--spacing-sm);
        right: var(--spacing-sm);
        max-width: none;
    }

    .modal {
        margin: var(--spacing-md);
        max-width: none;
        max-height: none;
        height: calc(100vh - 2rem);
    }

    .action-btns {
        flex-direction: column;
        gap: var(--spacing-xs);
    }
}

@media (max-width: 480px) {
    .main-content {
        padding: var(--spacing-md) var(--spacing-sm);
    }

    .form {
        padding: var(--spacing-md);
        margin: var(--spacing-sm);
    }

    .card {
        padding: var(--spacing-md);
        margin: var(--spacing-sm) 0;
    }

    .leaderboard-item {
        padding: var(--spacing-sm);
        font-size: 0.875rem;
    }

    .rank,
    .score {
        font-size: 1rem;
    }

    .table th,
    .table td {
        padding: var(--spacing-xs);
    }

    .btn {
        padding: var(--spacing-sm);
        font-size: 0.75rem;
    }

    .header-content {
        padding: 0 var(--spacing-sm);
    }

    .logo h1 {
        font-size: 1.25rem;
    }

    .logo p {
        font-size: 0.75rem;
    }
}

/* ============================ Print Styles ============================ */
@media print {
    .header,
    .footer,   
    .btn,
    .action-btns,
    .toast-container {
        display: none !important;
    }

    .main-content {
        margin: 0;
        padding: 0;
        box-shadow: none;
    }

    .card,
    .table-container {
        box-shadow: none;
        border: 1px solid #000;
    }

    .table th,
    .table td {
        border: 1px solid #000;
    }

    * {
        color: #000 !important;
        background: #fff !important;
    }
}

/* ============================ High Contrast Mode ============================ */
@media (prefers-contrast: high) {
    :root {
        --text-primary: #000000;
        --text-secondary: #333333;
        --background-primary: #ffffff;
        --background-secondary: #f0f0f0;
        --border-primary: #000000;
        --primary-color: #0000ff;
        --success-color: #008000;
        --warning-color: #ff8c00;
        --danger-color: #ff0000;
    }

    .btn {
        border: 2px solid;
    }

    .form-input,
    .form-select,
    .form-textarea {
        border: 2px solid #000000;
    }
}

/* ============================ Reduced Motion ============================ */
@media (prefers-reduced-motion: reduce) {
    *,
    *::before,
    *::after {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }

    .spinner {
        animation: none;
        border: 4px solid var(--border-primary);
        border-top-color: var(--primary-color);
    }
}

/* ============================ Focus Styles for Accessibility ============================ */
*:focus {
    outline: 2px solid var(--primary-color);
    outline-offset: 2px;
}

.btn:focus,
.language-toggle:focus {
    outline: 2px solid var(--text-inverse);
    outline-offset: 2px;
}

/* ============================ Custom Scrollbar ============================ */
::-webkit-scrollbar {
    width: 8px;
    height: 8px;
}

::-webkit-scrollbar-track {
    background: var(--background-secondary);
    border-radius: var(--radius-sm);
}

::-webkit-scrollbar-thumb {
    background: var(--border-secondary);
    border-radius: var(--radius-sm);
    transition: background var(--transition-fast);
}

    ::-webkit-scrollbar-thumb:hover {
        background: var(--text-muted);
    }

/* Firefox scrollbar */
* {
    scrollbar-width: thin;
    scrollbar-color: var(--border-secondary) var(--background-secondary);
}

/* ============================ Performance Optimizations ============================ */
.leaderboard-item,
.table tbody tr,
.card {
    will-change: transform;
}

.spinner {
    will-change: transform;
}

/* ============================ MISSING CSS STYLES ============================ */

/* ============================ Leaderboard Grid Layout ============================ */
.leaderboard-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: var(--spacing-xl);
    margin: var(--spacing-xl) 0;
}

.leaderboard-card {
    background: var(--background-primary);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-md);
    overflow: hidden;
    animation: fadeIn 0.5s ease;
    transition: all var(--transition-normal);
}

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

    .leaderboard-card .card-title {
        background: linear-gradient(135deg, var(--primary-color), var(--primary-hover));
        color: var(--text-inverse);
        padding: var(--spacing-lg);
        margin: 0;
        font-size: 1.25rem;
        font-weight: 700;
        text-align: center;
    }

    .leaderboard-card .loading {
        min-height: 200px;
        display: flex;
        flex-direction: column;
        align-items: center;
        justify-content: center;
        padding: var(--spacing-xl);
    }

/* ============================ Login Modal Styles ============================ */
#loginModal {
    position: fixed;
    z-index: var(--z-modal);
    left: 0;
    top: 0;
    width: 100%;
    height: 100%;
    background-color: var(--background-overlay);
    display: flex;
    align-items: center;
    justify-content: center;
    animation: fadeIn 0.3s ease;
}

    /* Hidden state - add this class via JavaScript when you want to hide */
    #loginModal.hidden {
        display: none;
    }

    /* Visible state - default visible, hide with .hidden class */
    #loginModal.show {
        display: flex;
        align-items: center;
        justify-content: center;
    }

    #loginModal .modal-content {
        background: var(--background-primary);
        padding: var(--spacing-xl);
        border-radius: var(--radius-lg);
        box-shadow: var(--shadow-xl);
        max-width: 400px;
        width: 90%;
        max-height: 90vh;
        overflow-y: auto;
        position: relative;
        animation: fadeIn 0.3s ease;
    }

    #loginModal .close {
        position: absolute;
        top: var(--spacing-md);
        right: var(--spacing-md);
        color: var(--text-secondary);
        font-size: 28px;
        font-weight: bold;
        cursor: pointer;
        line-height: 1;
        background: none;
        border: none;
        width: 32px;
        height: 32px;
        display: flex;
        align-items: center;
        justify-content: center;
        border-radius: var(--radius-sm);
        transition: all var(--transition-fast);
    }

        #loginModal .close:hover,
        #loginModal .close:focus {
            color: var(--text-primary);
            background: var(--background-secondary);
        }

    #loginModal h2 {
        font-size: 1.5rem;
        font-weight: 700;
        color: var(--text-primary);
        margin-bottom: var(--spacing-xl);
        text-align: center;
        padding-right: var(--spacing-xl); /* Account for close button */
    }

/* ============================ Login Form Styles ============================ */
#loginForm {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-lg);
}

    #loginForm .form-group {
        display: flex;
        flex-direction: column;
        gap: var(--spacing-sm);
    }

    #loginForm label {
        font-weight: 600;
        color: var(--text-primary);
        font-size: 0.875rem;
    }

    #loginForm input {
        padding: var(--spacing-sm) var(--spacing-md);
        border: 2px solid var(--border-primary);
        border-radius: var(--radius-md);
        font-size: 1rem;
        transition: all var(--transition-fast);
        background: var(--background-primary);
        color: var(--text-primary);
    }

        #loginForm input:focus {
            outline: none;
            border-color: var(--border-focus);
            box-shadow: 0 0 0 3px rgba(59, 130, 246, 0.1);
        }

    #loginForm .login-btn {
        background: var(--primary-color);
        color: var(--text-inverse);
        border: none;
        padding: var(--spacing-md) var(--spacing-lg);
        border-radius: var(--radius-md);
        cursor: pointer;
        font-size: 1rem;
        font-weight: 600;
        transition: all var(--transition-fast);
        margin-top: var(--spacing-md);
    }

        #loginForm .login-btn:hover {
            background: var(--primary-hover);
            transform: translateY(-1px);
            box-shadow: var(--shadow-md);
        }

        #loginForm .login-btn:active {
            transform: translateY(0);
        }

/* ============================ Dashboard Specific Styles ============================ */
.dashboard-header .team-info {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    font-size: 1.1rem;
}

#teamName {
    font-weight: 700;
    color: var(--accent-color);
    text-decoration: underline;
}

.team-members {
    background: var(--background-primary);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-md);
    padding: var(--spacing-xl);
    margin-top: var(--spacing-xl);
}

    .team-members h3 {
        font-size: 1.25rem;
        font-weight: 700;
        color: var(--text-primary);
        margin-bottom: var(--spacing-lg);
        text-align: center;
    }

.add-member-btn {
    background: var(--success-color);
    color: var(--text-inverse);
    border: none;
    padding: var(--spacing-sm) var(--spacing-lg);
    border-radius: var(--radius-md);
    cursor: pointer;
    font-weight: 600;
    margin-bottom: var(--spacing-lg);
    transition: all var(--transition-fast);
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
}

    .add-member-btn:hover {
        background: #059669;
        transform: translateY(-1px);
        box-shadow: var(--shadow-md);
    }

    .add-member-btn::before {
        content: '+';
        font-size: 1.2rem;
        font-weight: bold;
    }

/* ============================ Members Table Enhanced Styles ============================ */
.members-table {
    width: 100%;
    border-collapse: collapse;
    font-size: 0.875rem;
    background: var(--background-primary);
    border-radius: var(--radius-lg);
    overflow: hidden;
    box-shadow: var(--shadow-md);
}

    .members-table th {
        background: linear-gradient(135deg, var(--primary-color), var(--primary-hover));
        color: var(--text-inverse);
        padding: var(--spacing-md);
        text-align: center;
        font-weight: 600;
        font-size: 0.875rem;
        border: none;
        position: sticky;
        top: 0;
        z-index: 10;
    }

    .members-table td {
        padding: var(--spacing-md);
        text-align: center;
        border-bottom: 1px solid var(--border-primary);
        vertical-align: middle;
    }

    .members-table tbody tr {
        transition: all var(--transition-fast);
    }

        .members-table tbody tr:hover {
            background: var(--background-secondary);
            transform: scale(1.01);
        }

        .members-table tbody tr:nth-child(even) {
            background: rgba(59, 130, 246, 0.05);
        }

            .members-table tbody tr:nth-child(even):hover {
                background: var(--background-secondary);
            }

#membersTable {
    animation: fadeIn 0.5s ease;
}

/* ============================ Admin View Styles ============================ */
#admin-view {
    animation: fadeIn 0.5s ease;
}

#admin-teams-container {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-xl);
    animation: fadeIn 0.5s ease;
}

.admin-view .header {
    background: linear-gradient(135deg, var(--warning-color), #f97316);
    margin-bottom: var(--spacing-xl);
}

    .admin-view .header .logo {
        font-size: 1.5rem;
        font-weight: 700;
        color: var(--text-inverse);
    }

/* ============================ Enhanced Action Buttons ============================ */
.action-btns {
    display: flex;
    gap: var(--spacing-xs);
    justify-content: center;
    flex-wrap: wrap;
    align-items: center;
}

.edit-btn,
.delete-btn {
    padding: var(--spacing-xs) var(--spacing-sm);
    border: none;
    border-radius: var(--radius-sm);
    cursor: pointer;
    font-size: 0.75rem;
    font-weight: 500;
    transition: all var(--transition-fast);
    min-width: 60px;
    height: 28px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.edit-btn {
    background: var(--info-color);
    color: var(--text-inverse);
}

    .edit-btn:hover {
        background: #0891b2;
        transform: translateY(-1px);
        box-shadow: var(--shadow-sm);
    }

.delete-btn {
    background: var(--danger-color);
    color: var(--text-inverse);
}

    .delete-btn:hover {
        background: #dc2626;
        transform: translateY(-1px);
        box-shadow: var(--shadow-sm);
    }

/* ============================ Loading States ============================ */
.loading-state {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: var(--spacing-xxl);
    color: var(--text-secondary);
    min-height: 200px;
}

.loading-text {
    margin-top: var(--spacing-md);
    font-size: 0.875rem;
    animation: pulse 2s infinite;
}

/* ============================ Toast Container Positioning ============================ */
.toast-container {
    position: fixed;
    top: var(--spacing-lg);
    right: var(--spacing-lg);
    z-index: var(--z-toast);
    display: flex;
    flex-direction: column;
    gap: var(--spacing-sm);
    max-width: 400px;
    pointer-events: none;
}

    .toast-container .toast {
        pointer-events: all;
    }

/* ============================ Language Toggle Enhanced ============================ */
.language-toggle {
    background: rgba(255, 255, 255, 0.15);
    border: 2px solid rgba(255, 255, 255, 0.3);
    color: var(--text-inverse);
    padding: var(--spacing-sm);
    border-radius: var(--radius-md);
    cursor: pointer;
    transition: all var(--transition-fast);
    font-weight: 700;
    min-width: 50px;
    text-align: center;
}

    .language-toggle:hover {
        background: rgba(255, 255, 255, 0.25);
        transform: scale(1.05);
        border-color: rgba(255, 255, 255, 0.5);
    }

    .language-toggle:active {
        transform: scale(0.95);
    }

/* ============================ Responsive Enhancements ============================ */
@media (max-width: 768px) {
    .leaderboard-grid {
        grid-template-columns: 1fr;
        gap: var(--spacing-lg);
    }

    #loginModal .modal-content {
        width: 95%;
        padding: var(--spacing-lg);
    }

    #loginModal h2 {
        font-size: 1.25rem;
        padding-right: var(--spacing-lg);
    }

    .members-table {
        font-size: 0.75rem;
    }

        .members-table th,
        .members-table td {
            padding: var(--spacing-sm);
        }

    .action-btns {
        flex-direction: column;
        gap: var(--spacing-xs);
    }

    .edit-btn,
    .delete-btn {
        min-width: 80px;
        font-size: 0.7rem;
    }
}

@media (max-width: 480px) {
    .dashboard-header {
        padding: var(--spacing-md);
    }

    .team-members {
        padding: var(--spacing-md);
    }

    .add-member-btn {
        width: 100%;
        justify-content: center;
    }

    .members-table th,
    .members-table td {
        padding: var(--spacing-xs);
        font-size: 0.7rem;
    }

    .toast-container {
        left: var(--spacing-sm);
        right: var(--spacing-sm);
        max-width: none;
    }
}

/* ============================ Performance Optimizations ============================ */
.leaderboard-card,
.members-table tbody tr,
.add-member-btn,
.edit-btn,
.delete-btn {
    will-change: transform;
}

    /* ============================ Accessibility Improvements ============================ */
    .add-member-btn:focus,
    .edit-btn:focus,
    .delete-btn:focus {
        outline: 2px solid var(--primary-color);
        outline-offset: 2px;
    }

#loginModal input:focus {
    outline: 2px solid var(--primary-color);
    outline-offset: 2px;
}

/* ============================ Dark Mode Support ============================ */
[data-theme="dark"] .members-table th {
    background: linear-gradient(135deg, #1e40af, #1d4ed8);
}

[data-theme="dark"] .leaderboard-card .card-title {
    background: linear-gradient(135deg, #1e40af, #1d4ed8);
}

[data-theme="dark"] #loginModal .modal-content {
    background: var(--background-secondary);
    border: 1px solid var(--border-primary);
}

.date-filters-container {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    border-radius: 12px;
    padding: 20px;
    margin-bottom: 20px;
    color: white;
    box-shadow: 0 4px 15px rgba(0,0,0,0.1);
    position: relative;
    z-index: 10;
    min-height: 120px;
}

.date-filters-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 15px;
}

    .date-filters-header h3 {
        margin: 0;
        color: white;
        font-size: 1.2em;
    }

.refresh-btn {
    background: rgba(255,255,255,0.2);
    border: 1px solid rgba(255,255,255,0.3);
    color: white;
    padding: 8px 16px;
    border-radius: 6px;
    cursor: pointer;
    transition: all 0.3s ease;
    font-size: 0.9em;
}

    .refresh-btn:hover {
        background: rgba(255,255,255,0.3);
        transform: translateY(-1px);
    }

.date-filter-buttons {
    display: flex;
    gap: 10px;
    margin-bottom: 15px;
    flex-wrap: wrap;
}

.filter-btn {
    background: rgba(255,255,255,0.1);
    border: 1px solid rgba(255,255,255,0.2);
    color: white;
    padding: 10px 20px;
    border-radius: 8px;
    cursor: pointer;
    transition: all 0.3s ease;
    font-weight: 500;
}

    .filter-btn:hover {
        background: rgba(255,255,255,0.2);
        transform: translateY(-2px);
    }

    .filter-btn.active {
        background: rgba(255,255,255,0.3);
        border-color: rgba(255,255,255,0.5);
        box-shadow: 0 2px 8px rgba(0,0,0,0.2);
        transform: translateY(-1px);
    }

.date-range-picker {
    transition: all 0.4s ease;
    overflow: hidden;
}

    .date-range-picker.hidden {
        max-height: 0;
        opacity: 0;
        margin-top: 0;
    }

    .date-range-picker.visible {
        max-height: 200px;
        opacity: 1;
        margin-top: 10px;
    }

.date-inputs {
    display: flex;
    gap: 15px;
    align-items: end;
    flex-wrap: wrap;
    margin-bottom: 10px;
}

.date-input-group {
    display: flex;
    flex-direction: column;
    gap: 5px;
}

    .date-input-group label {
        font-size: 0.9em;
        font-weight: 500;
        color: rgba(255,255,255,0.9);
    }

    .date-input-group input {
        padding: 8px 12px;
        border: 1px solid rgba(255,255,255,0.3);
        border-radius: 6px;
        background: rgba(255,255,255,0.1);
        color: white;
        font-size: 0.9em;
    }

        .date-input-group input:focus {
            outline: none;
            border-color: rgba(255,255,255,0.5);
            background: rgba(255,255,255,0.2);
        }

.apply-range-btn {
    background: #4CAF50;
    border: none;
    color: white;
    padding: 10px 20px;
    border-radius: 6px;
    cursor: pointer;
    font-weight: 500;
    transition: all 0.3s ease;
    height: fit-content;
}

    .apply-range-btn:hover {
        background: #45a049;
        transform: translateY(-1px);
    }

.current-range-display {
    font-size: 0.9em;
    color: rgba(255,255,255,0.8);
    font-style: italic;
    transition: all 0.3s ease;
}

@media (max-width: 768px) {
    .date-filter-buttons {
        justify-content: center;
    }

    .filter-btn {
        flex: 1;
        min-width: 80px;
        text-align: center;
    }

    .date-inputs {
        flex-direction: column;
        align-items: stretch;
    }
}
/*zero teams*/
.zero-score-table-wrapper {
    overflow-x: auto;
    margin: 20px;
}

.zero-score-table {
    width: 100%;
    border-collapse: collapse;
    border-radius: 10px;
    overflow: hidden;
    box-shadow: 0 2px 12px rgba(0, 0, 0, 0.05);
    font-family: inherit;
}

    .zero-score-table thead {
        background-color: #f5f5f5;
        color: #333;
        text-align: left;
    }

    .zero-score-table th,
    .zero-score-table td {
        padding: 12px 16px;
        border-bottom: 1px solid #eee;
        font-size: 0.95rem;
    }

    .zero-score-table td {
        color: #444;
        vertical-align: top;
    }

        .zero-score-table th:first-child,
        .zero-score-table td:first-child {
            min-width: 140px;
        }

.count-badge {
    background-color: #ffe0e0;
    color: #b30000;
    padding: 4px 10px;
    border-radius: 20px;
    font-weight: bold;
    font-size: 0.85rem;
}

/* RTL Support */
html[lang="ar"] .zero-score-table {
    direction: rtl;
    text-align: right;
}
.zero-score-table tbody tr:hover {
    background-color: #fafafa;
    transition: background-color 0.2s;
}

.zero-score-table td.member-names {
    display: flex;
    flex-wrap: wrap;
    gap: 6px;
}

.member-badge {
    background-color: #eef2f7;
    color: #333;
    padding: 4px 8px;
    border-radius: 12px;
    font-size: 0.85rem;
    white-space: nowrap;
}

.zero-score-table td.leader-cell {
    background-color: #fcfcfc;
    font-weight: 500;
}

.zero-score-table thead th {
    position: sticky;
    top: 0;
    z-index: 1;
}
.zero-score-card .card-title {
    color: #ffffff;
}

.zero-score-card {
    margin-top: 30px;
}

.zero-score-table-wrapper {
    overflow-x: auto;
    padding: 10px;
}

.zero-score-table {
    width: 100%;
    border-collapse: collapse;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.05);
}

.member-badge {
    background-color: #eef2f7;
    padding: 4px 8px;
    margin: 2px;
    display: inline-block;
    border-radius: 12px;
    font-size: 0.85rem;
}
    .member-badge.reviewed {
        background-color: #e6f9e6;
        border: 1px solid #47b847;
        padding: 4px 6px;
        border-radius: 6px;
        margin: 2px;
    }