/* ===== RESET & BASE ===== */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

:root {
    --primary: #667eea;
    --primary-dark: #5568d3;
    --secondary: #764ba2;
    --success: #10b981;
    --danger: #ef4444;
    --warning: #f59e0b;
    --info: #3b82f6;
    
    --gray-50: #f9fafb;
    --gray-100: #f3f4f6;
    --gray-200: #e5e7eb;
    --gray-300: #d1d5db;
    --gray-400: #9ca3af;
    --gray-500: #6b7280;
    --gray-600: #4b5563;
    --gray-700: #374151;
    --gray-800: #1f2937;
    --gray-900: #111827;
    
    --sidebar-width: 260px;
    --header-height: 70px;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, sans-serif;
    background: var(--gray-50);
    color: var(--gray-900);
    line-height: 1.6;
}

/* ===== LOGIN PAGE ===== */
.login-page {
    background: linear-gradient(135deg, var(--primary) 0%, var(--secondary) 100%);
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 20px;
}

.login-container {
    width: 100%;
    max-width: 420px;
}

.login-card {
    background: white;
    border-radius: 16px;
    padding: 40px;
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.3);
}

.login-header {
    text-align: center;
    margin-bottom: 32px;
}

.login-logo {
    font-size: 64px;
    margin-bottom: 16px;
}

.login-header h1 {
    font-size: 28px;
    color: var(--gray-900);
    margin-bottom: 8px;
}

.login-header p {
    color: var(--gray-600);
    font-size: 14px;
}

.login-form .form-group {
    margin-bottom: 20px;
}

.login-form label {
    display: block;
    margin-bottom: 8px;
    color: var(--gray-700);
    font-weight: 500;
    font-size: 14px;
}

.login-form input {
    width: 100%;
    padding: 12px 16px;
    border: 2px solid var(--gray-200);
    border-radius: 8px;
    font-size: 15px;
    transition: all 0.3s;
}

.login-form input:focus {
    outline: none;
    border-color: var(--primary);
    box-shadow: 0 0 0 3px rgba(102, 126, 234, 0.1);
}

.login-footer {
    text-align: center;
    margin-top: 24px;
    padding-top: 24px;
    border-top: 1px solid var(--gray-200);
}

.login-footer p {
    color: var(--gray-500);
    font-size: 13px;
}

/* ===== APP LAYOUT ===== */
.app-container {
    display: flex;
    min-height: 100vh;
}

/* ===== SIDEBAR ===== */
.sidebar {
    width: var(--sidebar-width);
    background: white;
    border-right: 1px solid var(--gray-200);
    display: flex;
    flex-direction: column;
    position: fixed;
    height: 100vh;
    overflow-y: auto;
}

.sidebar-header {
    padding: 24px 20px;
    border-bottom: 1px solid var(--gray-200);
}

.sidebar-header h2 {
    font-size: 24px;
    color: var(--primary);
    margin-bottom: 4px;
}

.sidebar-subtitle {
    font-size: 12px;
    color: var(--gray-500);
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.sidebar-nav {
    flex: 1;
    padding: 16px 0;
}

.nav-item {
    display: flex;
    align-items: center;
    padding: 12px 20px;
    color: var(--gray-700);
    text-decoration: none;
    transition: all 0.2s;
    position: relative;
}

.nav-item:hover {
    background: var(--gray-50);
    color: var(--primary);
}

.nav-item.active {
    background: linear-gradient(90deg, rgba(102, 126, 234, 0.1) 0%, transparent 100%);
    color: var(--primary);
    font-weight: 600;
}

.nav-item.active::before {
    content: '';
    position: absolute;
    left: 0;
    top: 0;
    bottom: 0;
    width: 3px;
    background: var(--primary);
}

.nav-icon {
    font-size: 20px;
    margin-right: 12px;
    width: 24px;
    text-align: center;
}

.nav-text {
    flex: 1;
}

.nav-badge {
    background: var(--warning);
    color: white;
    font-size: 11px;
    font-weight: 600;
    padding: 2px 8px;
    border-radius: 12px;
    min-width: 20px;
    text-align: center;
}

.sidebar-footer {
    padding: 16px 20px;
    border-top: 1px solid var(--gray-200);
}

.admin-info {
    display: flex;
    align-items: center;
    gap: 12px;
}

.admin-avatar {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    background: var(--gray-100);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 20px;
}

.admin-details {
    flex: 1;
    min-width: 0;
}

.admin-email {
    font-size: 13px;
    color: var(--gray-700);
    font-weight: 500;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.logout-link {
    background: none;
    border: none;
    color: var(--danger);
    font-size: 12px;
    cursor: pointer;
    padding: 0;
    text-decoration: underline;
}

.logout-link:hover {
    color: #dc2626;
}

/* ===== MAIN CONTENT ===== */
.main-content {
    flex: 1;
    margin-left: var(--sidebar-width);
    min-height: 100vh;
}

.page-header {
    background: white;
    border-bottom: 1px solid var(--gray-200);
    padding: 24px 32px;
}

.page-header h1 {
    font-size: 28px;
    color: var(--gray-900);
    margin-bottom: 4px;
}

.page-subtitle {
    color: var(--gray-600);
    font-size: 14px;
}

.content-wrapper {
    padding: 32px;
    max-width: 1400px;
}

/* ===== STATS CARDS ===== */
.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 24px;
    margin-bottom: 32px;
}

.stat-card {
    background: white;
    border-radius: 12px;
    padding: 24px;
    box-shadow: 0 1px 3px rgba(0, 0, 0, 0.1);
    display: flex;
    align-items: center;
    gap: 16px;
    transition: transform 0.2s, box-shadow 0.2s;
}

.stat-card:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
}

.stat-icon {
    font-size: 40px;
    width: 64px;
    height: 64px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 12px;
}

.stat-card-purple .stat-icon {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
}

.stat-card-blue .stat-icon {
    background: linear-gradient(135deg, #3b82f6 0%, #2563eb 100%);
}

.stat-card-green .stat-icon {
    background: linear-gradient(135deg, #10b981 0%, #059669 100%);
}

.stat-card-orange .stat-icon {
    background: linear-gradient(135deg, #f59e0b 0%, #d97706 100%);
}

.stat-content {
    flex: 1;
}

.stat-label {
    font-size: 13px;
    color: var(--gray-600);
    text-transform: uppercase;
    letter-spacing: 0.5px;
    margin-bottom: 4px;
}

.stat-value {
    font-size: 32px;
    font-weight: 700;
    color: var(--gray-900);
    margin-bottom: 4px;
}

.stat-change {
    font-size: 12px;
    color: var(--gray-500);
}

/* ===== CARDS ===== */
.card {
    background: white;
    border-radius: 12px;
    box-shadow: 0 1px 3px rgba(0, 0, 0, 0.1);
    margin-bottom: 24px;
    overflow: hidden;
}

.card-header {
    padding: 20px 24px;
    border-bottom: 1px solid var(--gray-200);
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.card-header h2 {
    font-size: 18px;
    color: var(--gray-900);
    font-weight: 600;
}

.card-body {
    padding: 24px;
}

/* ===== BUTTONS ===== */
.btn {
    padding: 10px 20px;
    border: none;
    border-radius: 8px;
    font-size: 14px;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.2s;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
}

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

.btn-primary:hover {
    background: var(--primary-dark);
    transform: translateY(-1px);
    box-shadow: 0 4px 12px rgba(102, 126, 234, 0.4);
}

.btn-secondary {
    background: var(--gray-200);
    color: var(--gray-700);
}

.btn-secondary:hover {
    background: var(--gray-300);
}

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

.btn-success:hover {
    background: #059669;
}

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

.btn-danger:hover {
    background: #dc2626;
}

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

.btn-edit:hover {
    background: #2563eb;
}

.btn-small {
    padding: 6px 12px;
    font-size: 12px;
}

.btn-block {
    width: 100%;
}

.btn:disabled {
    opacity: 0.5;
    cursor: not-allowed;
}

/* ===== BADGES ===== */
.badge {
    padding: 4px 12px;
    border-radius: 12px;
    font-size: 12px;
    font-weight: 600;
}

.badge-warning {
    background: #fef3c7;
    color: #92400e;
}

.badge-success {
    background: #d1fae5;
    color: #065f46;
}

.badge-danger {
    background: #fee2e2;
    color: #991b1b;
}

.badge-info {
    background: #dbeafe;
    color: #1e40af;
}

/* ===== FORMS ===== */
.form-group {
    margin-bottom: 20px;
}

.form-group label {
    display: block;
    margin-bottom: 8px;
    color: var(--gray-700);
    font-weight: 500;
    font-size: 14px;
}

.form-group input,
.form-group textarea,
.form-group select {
    width: 100%;
    padding: 10px 14px;
    border: 2px solid var(--gray-200);
    border-radius: 8px;
    font-size: 14px;
    transition: all 0.3s;
}

.form-group input:focus,
.form-group textarea:focus,
.form-group select:focus {
    outline: none;
    border-color: var(--primary);
    box-shadow: 0 0 0 3px rgba(102, 126, 234, 0.1);
}

/* ===== FILTER BAR ===== */
.filter-bar {
    display: flex;
    gap: 12px;
    margin-bottom: 20px;
}

.filter-select {
    padding: 10px 14px;
    border: 2px solid var(--gray-200);
    border-radius: 8px;
    font-size: 14px;
    min-width: 150px;
}

.search-input {
    flex: 1;
    padding: 10px 14px;
    border: 2px solid var(--gray-200);
    border-radius: 8px;
    font-size: 14px;
}

/* ===== MODALS ===== */
.modal {
    display: none;
    position: fixed;
    z-index: 1000;
    left: 0;
    top: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0, 0, 0, 0.5);
    animation: fadeIn 0.3s;
}

.modal-content {
    background-color: white;
    margin: 5% auto;
    border-radius: 12px;
    width: 90%;
    max-width: 600px;
    max-height: 80vh;
    overflow-y: auto;
    animation: slideIn 0.3s;
}

.modal-header {
    padding: 24px;
    border-bottom: 1px solid var(--gray-200);
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.modal-header h2 {
    font-size: 20px;
    color: var(--gray-900);
}

.modal-content form {
    padding: 24px;
}

.modal-footer {
    padding: 16px 24px;
    border-top: 1px solid var(--gray-200);
    display: flex;
    gap: 12px;
    justify-content: flex-end;
}

.close {
    color: var(--gray-400);
    font-size: 28px;
    font-weight: bold;
    cursor: pointer;
    line-height: 20px;
    transition: color 0.2s;
}

.close:hover {
    color: var(--gray-900);
}

/* ===== ANIMATIONS ===== */
@keyframes fadeIn {
    from { opacity: 0; }
    to { opacity: 1; }
}

@keyframes slideIn {
    from {
        transform: translateY(-50px);
        opacity: 0;
    }
    to {
        transform: translateY(0);
        opacity: 1;
    }
}

.spinner {
    border: 2px solid rgba(255, 255, 255, 0.3);
    border-top: 2px solid white;
    border-radius: 50%;
    width: 16px;
    height: 16px;
    animation: spin 0.8s linear infinite;
}

@keyframes spin {
    0% { transform: rotate(0deg); }
    100% { transform: rotate(360deg); }
}

/* ===== ORGANIZATION/VOLUNTEER/CALL/APPLICATION CARDS ===== */
.org-card,
.volunteer-card,
.call-card,
.application-card {
    background: var(--gray-50);
    border-radius: 8px;
    padding: 20px;
    margin-bottom: 16px;
    border-left: 4px solid var(--primary);
    transition: all 0.2s;
}

.org-card:hover,
.volunteer-card:hover,
.call-card:hover,
.application-card:hover {
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
}

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

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

.org-header,
.volunteer-header,
.call-header,
.application-header {
    display: flex;
    justify-content: space-between;
    align-items: start;
    margin-bottom: 16px;
}

.org-info h3,
.volunteer-info h3,
.call-info h3,
.application-info h3 {
    font-size: 18px;
    color: var(--gray-900);
    margin-bottom: 4px;
}

.org-type,
.volunteer-email,
.call-org,
.application-call {
    font-size: 14px;
    color: var(--gray-600);
}

.org-status {
    padding: 4px 12px;
    border-radius: 12px;
    font-size: 12px;
    font-weight: 600;
    text-transform: uppercase;
}

.org-status.pending {
    background: #fef3c7;
    color: #92400e;
}

.org-status.active {
    background: #d1fae5;
    color: #065f46;
}

.org-status.rejected {
    background: #fee2e2;
    color: #991b1b;
}

.org-details,
.volunteer-details,
.call-details,
.application-details {
    margin-bottom: 16px;
}

.org-details p,
.volunteer-details p,
.call-details p,
.application-details p {
    font-size: 14px;
    color: var(--gray-700);
    margin-bottom: 8px;
}

.org-details strong,
.volunteer-details strong,
.call-details strong,
.application-details strong {
    color: var(--gray-900);
}

.org-actions,
.volunteer-actions,
.call-actions,
.application-actions {
    display: flex;
    gap: 8px;
    flex-wrap: wrap;
}

.urgency-badge {
    padding: 4px 12px;
    border-radius: 12px;
    font-size: 12px;
    font-weight: 600;
    text-transform: uppercase;
}

.urgency-badge.urgent {
    background: #fee2e2;
    color: #991b1b;
}

.urgency-badge.soon {
    background: #fef3c7;
    color: #92400e;
}

.urgency-badge.flexible {
    background: #d1fae5;
    color: #065f46;
}

/* ===== ACTIVITY ITEMS ===== */
.activity-item {
    display: flex;
    gap: 16px;
    padding: 16px;
    border-bottom: 1px solid var(--gray-200);
}

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

.activity-icon {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 20px;
    flex-shrink: 0;
}

.activity-icon.success {
    background: #d1fae5;
}

.activity-icon.danger {
    background: #fee2e2;
}

.activity-content {
    flex: 1;
}

.activity-text {
    font-size: 14px;
    color: var(--gray-900);
    margin-bottom: 4px;
}

.activity-time {
    font-size: 12px;
    color: var(--gray-500);
}

/* ===== QUICK ACTIONS ===== */
.quick-actions {
    margin-bottom: 32px;
}

.quick-actions h2 {
    font-size: 18px;
    color: var(--gray-900);
    margin-bottom: 16px;
}

.action-buttons {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 16px;
}

.action-btn {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 16px 20px;
    border-radius: 12px;
    text-decoration: none;
    transition: all 0.2s;
}

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

.action-btn-secondary {
    background: linear-gradient(135deg, var(--info) 0%, #2563eb 100%);
    color: white;
}

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

.action-btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.2);
}

.action-icon {
    font-size: 24px;
}

.action-text {
    font-weight: 600;
}

/* ===== UTILITY CLASSES ===== */
.error {
    color: var(--danger);
    font-size: 14px;
    margin-top: 8px;
}

.loading {
    text-align: center;
    color: var(--gray-500);
    padding: 40px;
}

.empty-state {
    text-align: center;
    padding: 60px 20px;
    color: var(--gray-500);
}

.empty-state h3 {
    font-size: 20px;
    margin-bottom: 8px;
    color: var(--gray-700);
}

/* ===== MOBILE MENU TOGGLE ===== */
.mobile-menu-toggle {
    display: none;
    position: fixed;
    top: 20px;
    left: 20px;
    z-index: 1001;
    background: #00C896;
    color: white;
    border: none;
    width: 50px;
    height: 50px;
    border-radius: 12px;
    cursor: pointer;
    box-shadow: 0 4px 12px rgba(0, 200, 150, 0.3);
    transition: all 0.3s;
}

.mobile-menu-toggle:hover {
    background: #00B085;
    transform: scale(1.05);
}

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

.mobile-menu-toggle span {
    display: block;
    width: 24px;
    height: 2px;
    background: white;
    margin: 5px auto;
    transition: all 0.3s;
    border-radius: 2px;
}

.mobile-menu-toggle.active span:nth-child(1) {
    transform: rotate(45deg) translate(6px, 6px);
}

.mobile-menu-toggle.active span:nth-child(2) {
    opacity: 0;
}

.mobile-menu-toggle.active span:nth-child(3) {
    transform: rotate(-45deg) translate(6px, -6px);
}

.mobile-overlay {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.5);
    z-index: 999;
    opacity: 0;
    transition: opacity 0.3s;
}

.mobile-overlay.active {
    opacity: 1;
}

/* ===== RESPONSIVE ===== */
@media (max-width: 768px) {
    .mobile-menu-toggle {
        display: flex;
        align-items: center;
        justify-content: center;
        flex-direction: column;
    }
    
    .mobile-overlay {
        display: block;
    }
    
    .sidebar {
        position: fixed;
        left: 0;
        top: 0;
        bottom: 0;
        transform: translateX(-100%);
        transition: transform 0.3s ease-in-out;
        z-index: 1000;
        box-shadow: 4px 0 12px rgba(0, 0, 0, 0.1);
    }
    
    .sidebar.mobile-open {
        transform: translateX(0);
    }
    
    .main-content {
        margin-left: 0;
        width: 100%;
    }
    
    .page-header {
        padding: 80px 20px 20px 20px;
    }
    
    .page-header h1 {
        font-size: 24px;
    }
    
    .stats-grid {
        grid-template-columns: 1fr;
        gap: 12px;
    }
    
    .stat-card {
        padding: 16px;
    }
    
    .filter-bar, .filters-bar {
        flex-direction: column;
        gap: 12px;
    }
    
    .filter-bar input,
    .filter-bar select,
    .filters-bar input,
    .filters-bar select {
        width: 100%;
    }
    
    .content-wrapper {
        padding: 16px;
    }
    
    .card {
        padding: 16px;
    }
    
    .features-grid {
        grid-template-columns: 1fr !important;
    }
    
    .nav-item {
        padding: 12px 16px;
    }
    
    .nav-text {
        font-size: 14px;
    }
}

@media (max-width: 480px) {
    .mobile-menu-toggle {
        width: 45px;
        height: 45px;
        top: 15px;
        left: 15px;
    }
    
    .page-header {
        padding: 70px 15px 15px 15px;
    }
    
    .page-header h1 {
        font-size: 20px;
    }
    
    .page-subtitle {
        font-size: 13px;
    }
    
    .content-wrapper {
        padding: 12px;
    }
    
    .stat-card h3 {
        font-size: 24px;
    }
    
    .stat-card p {
        font-size: 12px;
    }
}