/* ====== BASE STYLES ====== */
:root {
    --primary-color: #2563eb;
    --primary-dark: #1d4ed8;
    --success-color: #10b981;
    --warning-color: #f59e0b;
    --danger-color: #ef4444;
    --info-color: #06b6d4;
    --edit-color: #8b5cf6;
    --overnight-color: #7c3aed;
    --present-color: #059669;
    --notworking-color: #6b7280;
    --weekend-color: #0369a1;
    --shift24h-color: #92400e;
    --verify-color: #dc2626;
    --admin-color: #7c3aed;
    --audit-color: #f59e0b;
    --vacation-color: #06b6d4;
    --border-color: #e5e7eb;
    --shadow-sm: 0 1px 2px 0 rgb(0 0 0 / 0.05);
    --shadow-md: 0 4px 6px -1px rgb(0 0 0 / 0.1);
    --shadow-lg: 0 10px 15px -3px rgb(0 0 0 / 0.1);
    --radius-sm: 0.375rem;
    --radius-md: 0.5rem;
    --radius-lg: 0.75rem;
}

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

body { 
    font-family: 'Segoe UI', system-ui, -apple-system, sans-serif; 
    line-height: 1.6; 
    color: #1f2937; 
    background: linear-gradient(135deg, #f8fafc 0%, #f1f5f9 100%);
    min-height: 100vh;
    padding: 20px;
}

.container { 
    max-width: 1600px; 
    margin: 0 auto; 
    padding: 0 15px; 
}

/* ====== AUTHENTICATION MODAL ====== */
.auth-modal {
    display: flex;
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.7);
    z-index: 2000;
    align-items: center;
    justify-content: center;
}

.auth-modal-content {
    background: white;
    padding: 2.5rem;
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-lg);
    width: 90%;
    max-width: 400px;
    text-align: center;
}

.auth-modal h2 {
    margin-bottom: 1.5rem;
    color: var(--primary-color);
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
}

.auth-form {
    display: flex;
    flex-direction: column;
    gap: 1.25rem;
}

.form-group {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
    text-align: left;
}

.form-group label {
    font-weight: 600;
    color: #374151;
    font-size: 0.9rem;
}

.form-group input,
.form-group select {
    padding: 0.75rem 1rem;
    border: 2px solid var(--border-color);
    border-radius: var(--radius-sm);
    font-size: 1rem;
    transition: all 0.2s ease;
}

.form-group input:focus,
.form-group select:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.1);
}

/* ====== HEADER WITH USER INFO ====== */
.app-header {
    text-align: center;
    margin-bottom: 2rem;
    padding: 2rem;
    background: white;
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-md);
    border-bottom: 4px solid var(--primary-color);
    position: relative;
}

.app-header h1 {
    font-size: 2.2rem;
    font-weight: 700;
    background: linear-gradient(135deg, var(--primary-color), #7c3aed);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    margin-bottom: 0.5rem;
}

.app-header .subtitle { 
    color: #64748b; 
    font-size: 1rem; 
    margin-bottom: 1rem;
}

.user-info {
    position: absolute;
    top: 1rem;
    right: 1rem;
    display: flex;
    align-items: center;
    gap: 0.75rem;
    background: #f8fafc;
    padding: 0.5rem 1rem;
    border-radius: var(--radius-md);
    border: 1px solid var(--border-color);
}

.user-badge {
    background: var(--admin-color);
    color: white;
    padding: 0.25rem 0.75rem;
    border-radius: 9999px;
    font-size: 0.75rem;
    font-weight: 600;
}

.logout-btn {
    background: none;
    border: none;
    color: var(--danger-color);
    cursor: pointer;
    font-size: 1.1rem;
    padding: 0.25rem;
    border-radius: var(--radius-sm);
    transition: background-color 0.2s;
}

.logout-btn:hover {
    background-color: #fee2e2;
}

.rule-note {
    color: #dc2626;
    font-size: 14px;
    margin-top: 5px;
    font-weight: 500;
}

.mode-indicator {
    margin-top: 10px;
    padding: 8px 16px;
    background: #fef3c7;
    border-radius: 20px;
    display: inline-block;
    font-size: 14px;
    color: #92400e;
    border: 1px solid #fbbf24;
}

/* ====== CONTROL PANEL ====== */
.control-panel {
    background: white;
    padding: 1.5rem;
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-sm);
    margin-bottom: 2rem;
    border: 1px solid var(--border-color);
}

.controls-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 1.5rem;
    margin-bottom: 1.5rem;
}

.control-group {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

.control-group label {
    font-weight: 600;
    color: #374151;
    font-size: 0.85rem;
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.control-group input,
.control-group select {
    padding: 0.75rem 1rem;
    border: 2px solid var(--border-color);
    border-radius: var(--radius-sm);
    font-size: 1rem;
    transition: all 0.2s ease;
}

.control-group input:focus,
.control-group select:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.1);
}

/* ====== BUTTONS ====== */
.button-group {
    display: flex;
    flex-wrap: wrap;
    gap: 0.75rem;
    justify-content: center;
    margin-top: 1.5rem;
}

.btn {
    padding: 0.75rem 1.5rem;
    border: none;
    border-radius: var(--radius-sm);
    font-weight: 600;
    font-size: 0.9rem;
    cursor: pointer;
    transition: all 0.2s ease;
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
}

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

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

.btn-secondary { 
    background: white; 
    color: var(--primary-color); 
    border: 2px solid var(--border-color); 
}

.btn-secondary:hover { 
    border-color: var(--primary-color); 
    background: #f8fafc; 
}

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

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

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

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

.btn-info:hover { 
    background: #0da8c4; 
    transform: translateY(-1px); 
    box-shadow: var(--shadow-md); 
}

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

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

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

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

.btn-icon { 
    font-size: 1.1rem; 
}

.btn-sm { 
    padding: 0.4rem 0.8rem; 
    font-size: 0.8rem; 
}

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

/* ====== DROPDOWN MENU ====== */
.dropdown {
    position: relative;
    display: inline-block;
}

.dropdown-menu {
    display: none;
    position: absolute;
    background: white;
    min-width: 200px;
    box-shadow: var(--shadow-lg);
    border-radius: var(--radius-sm);
    z-index: 1000;
    border: 1px solid var(--border-color);
    top: 100%;
    left: 0;
    margin-top: 5px;
}

.dropdown:hover .dropdown-menu {
    display: block;
}

.dropdown-option {
    width: 100%;
    padding: 0.75rem 1rem;
    background: none;
    border: none;
    text-align: left;
    cursor: pointer;
    display: flex;
    align-items: center;
    font-size: 0.9rem;
    color: #374151;
    transition: background-color 0.2s;
}

.dropdown-option:hover {
    background-color: #f3f4f6;
}

/* ====== MODAL STYLES ====== */
.modal {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.5);
    z-index: 1000;
    align-items: center;
    justify-content: center;
}

.modal-content {
    background: white;
    padding: 2rem;
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-lg);
    width: 90%;
    max-width: 550px;
    max-height: 90vh;
    overflow-y: auto;
}

/* ====== AUDIT TRAIL PANEL ====== */
.audit-panel {
    background: #fffbeb;
    border: 2px solid var(--audit-color);
    border-radius: var(--radius-md);
    padding: 0;
    margin-bottom: 1rem;
    overflow: hidden;
    display: none;
}

.audit-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 0;
    padding: 1rem;
    background: #fef3c7;
    border-bottom: 2px solid var(--audit-color);
    transition: background-color 0.2s ease;
    cursor: pointer;
}

.audit-content {
    padding: 1rem;
    max-height: 300px;
    overflow-y: auto;
    transition: max-height 0.3s ease, padding 0.3s ease;
}

.audit-content.collapsed {
    max-height: 0;
    padding: 0 1rem;
    overflow: hidden;
}

.audit-count {
    background: var(--audit-color);
    color: white;
    padding: 0.25rem 0.75rem;
    border-radius: 9999px;
    font-size: 0.875rem;
    font-weight: 600;
    margin-right: 10px;
}

#auditToggleIcon.rotated {
    transform: rotate(180deg);
}

/* ====== VERIFICATION PANEL ====== */
.verification-panel {
    background: #fef2f2;
    border: 2px solid var(--verify-color);
    border-radius: var(--radius-md);
    padding: 0;
    margin-bottom: 1rem;
    overflow: hidden;
    display: none;
}

.verification-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 0;
    padding: 1rem;
    background: #fee2e2;
    border-bottom: 2px solid var(--verify-color);
    transition: background-color 0.2s ease;
    cursor: pointer;
}

.verification-content {
    padding: 1rem;
    max-height: 300px;
    overflow-y: auto;
    transition: max-height 0.3s ease, padding 0.3s ease;
}

.verification-content.collapsed {
    max-height: 0;
    padding: 0 1rem;
    overflow: hidden;
}

.verification-count {
    background: var(--verify-color);
    color: white;
    padding: 0.25rem 0.75rem;
    border-radius: 9999px;
    font-size: 0.875rem;
    font-weight: 600;
    margin-right: 10px;
}

#verificationToggleIcon.rotated {
    transform: rotate(180deg);
}

/* ====== LOADING ====== */
.loading {
    display: none;
    text-align: center;
    padding: 2rem;
    color: var(--primary-color);
    font-size: 1.1rem;
}

.loading i {
    margin-right: 10px;
}

/* ====== STATISTICS PANEL ====== */
.stats-panel {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 1rem;
    margin-bottom: 2rem;
    padding: 1.5rem;
    background: white;
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-sm);
    border: 1px solid var(--border-color);
}

.stat-card {
    padding: 1rem;
    background: #f8fafc;
    border-radius: var(--radius-sm);
    border-left: 4px solid var(--primary-color);
}

.stat-value {
    font-size: 1.8rem;
    font-weight: 700;
    color: #1f2937;
}

.stat-label {
    font-size: 0.9rem;
    color: #6b7280;
    margin-top: 0.5rem;
}

/* ====== TABLE STYLES ====== */
.table-container {
    background: white;
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-md);
    overflow: hidden;
    margin-bottom: 2rem;
    border: 1px solid var(--border-color);
}

.table-header {
    background: linear-gradient(135deg, var(--primary-color), var(--primary-dark));
    color: white;
    padding: 1.25rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.table-header h2 { 
    font-size: 1.5rem; 
    font-weight: 600; 
}

.table-actions { 
    display: flex; 
    gap: 0.5rem; 
    align-items: center; 
}

.table-wrapper { 
    overflow-x: auto; 
}

#resultTable {
    width: 100%;
    border-collapse: collapse;
    min-width: 1200px;
}

#resultTable thead { 
    background-color: #f9fafb; 
    border-bottom: 2px solid var(--border-color); 
}

#resultTable th {
    padding: 1rem;
    text-align: left;
    font-weight: 600;
    color: #374151;
    text-transform: uppercase;
    font-size: 0.8rem;
    letter-spacing: 0.05em;
    border-bottom: 2px solid var(--border-color);
    position: sticky;
    top: 0;
    background: #f9fafb;
    z-index: 10;
}

#resultTable td {
    padding: 0.875rem 1rem;
    border-bottom: 1px solid var(--border-color);
    vertical-align: middle;
}

#resultTable tbody tr { 
    transition: background-color 0.15s ease; 
}

#resultTable tbody tr:hover { 
    background-color: #f9fafb; 
}

.empty-state {
    text-align: center;
    padding: 3rem !important;
    color: #6b7280;
}

.empty-state i {
    font-size: 3rem;
    margin-bottom: 1rem;
    color: #d1d5db;
}

.empty-state p {
    font-size: 1.1rem;
}

/* ====== EDITABLE CELLS ====== */
.editable-cell {
    cursor: pointer;
    position: relative;
    transition: background-color 0.2s;
}

.editable-cell:hover {
    background-color: #f0f9ff !important;
    outline: 2px solid #bae6fd;
    outline-offset: -2px;
}

.edit-badge {
    position: absolute;
    top: -8px;
    right: -8px;
    background: var(--edit-color);
    color: white;
    width: 18px;
    height: 18px;
    border-radius: 50%;
    font-size: 10px;
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    transition: opacity 0.2s;
    z-index: 5;
}

.editable-cell:hover .edit-badge {
    opacity: 1;
}

/* ====== STATUS BADGES ====== */
.status-badge {
    display: inline-block;
    padding: 0.25rem 0.75rem;
    border-radius: 9999px;
    font-size: 0.75rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.present { 
    background-color: #d1fae5; 
    color: var(--present-color); 
}

.not-working { 
    background-color: #f3f4f6; 
    color: var(--notworking-color); 
    border: 1px solid #d1d5db; 
}

.weekend { 
    background-color: #f0f9ff; 
    color: var(--weekend-color); 
}

.shift-24h { 
    background-color: #fef3c7; 
    color: var(--shift24h-color); 
}

.overnight-status { 
    background-color: #ede9fe; 
    color: var(--overnight-color); 
    border: 1px solid #ddd6fe; 
}

.verify-status { 
    background-color: #fee2e2; 
    color: var(--verify-color); 
    border: 1px solid #fecaca; 
}

.vacation-status { 
    background-color: #cffafe; 
    color: var(--vacation-color); 
    border: 1px solid #a5f3fc; 
}

/* ====== TABLE ROW STYLES ====== */
.separator td {
    background: #f8fafc;
    color: #6b7280;
    font-style: italic;
    padding: 0.5rem 1rem !important;
    border-top: 2px solid var(--border-color);
    border-bottom: 2px solid var(--border-color);
}

.separator i {
    margin-right: 8px;
}

.overnight-row {
    background-color: #f5f3ff !important;
}

.verify-row {
    background-color: #fef2f2 !important;
}

.weekend-row {
    background-color: #f0f9ff !important;
}

.vacation-row {
    background-color: #ecfeff !important;
}

.weekend-row .weekend-day {
    font-weight: bold;
    color: var(--weekend-color);
}

.weekend-row .weekend-cell {
    color: var(--weekend-color);
    font-weight: 500;
}

.overnight-info, .verify-info, .vacation-info {
    display: block;
    font-size: 0.75rem;
    margin-top: 2px;
    padding: 2px 6px;
    border-radius: 4px;
    background: #ede9fe;
    color: var(--overnight-color);
}

.verify-info {
    background: #fee2e2;
    color: var(--verify-color);
}

.vacation-info {
    background: #cffafe;
    color: var(--vacation-color);
}

/* ====== AUDIT INFO ====== */
.audit-info {
    background: #f8fafc;
    padding: 0.75rem;
    border-radius: var(--radius-sm);
    margin-bottom: 1rem;
    border-left: 4px solid var(--admin-color);
}

.audit-info strong {
    color: var(--admin-color);
}

.edit-form {
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

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

.modal-actions {
    display: flex;
    justify-content: flex-end;
    gap: 1rem;
    margin-top: 1.5rem;
}

textarea {
    width: 100%;
    padding: 0.75rem;
    border: 2px solid var(--border-color);
    border-radius: var(--radius-sm);
    font-family: inherit;
    font-size: 0.9rem;
    resize: vertical;
    min-height: 80px;
}

textarea:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.1);
}

/* ====== EXPORT OPTIONS ====== */
.export-options {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

.export-option-radio {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.5rem;
    border-radius: var(--radius-sm);
    cursor: pointer;
    transition: background-color 0.2s;
}

.export-option-radio:hover {
    background-color: #f3f4f6;
}

.export-option-radio input[type="radio"] {
    margin: 0;
}

/* ====== MONTHLY HOURS PREVIEW TABLE ====== */
#monthlyHoursPreviewTable {
    width: 100%;
    border-collapse: collapse;
    margin-top: 10px;
}

#monthlyHoursPreviewTable th,
#monthlyHoursPreviewTable td {
    border: 1px solid #e5e7eb;
    padding: 8px;
    text-align: left;
    font-size: 12px;
}

#monthlyHoursPreviewTable th {
    background-color: #f3f4f6;
    font-weight: 600;
}

#monthlyHoursPreviewTable tr:nth-child(even) {
    background-color: #f9fafb;
}

#monthlyHoursPreviewTable tr:hover {
    background-color: #f0f9ff;
}

/* ====== VACATION LIST ====== */
.vacation-item {
    padding: 0.75rem;
    margin-bottom: 0.5rem;
    background: white;
    border-radius: 0.375rem;
    border-left: 4px solid var(--vacation-color);
    border: 1px solid #e5e7eb;
}

.vacation-item:hover {
    background: #f8fafc;
}

.vacation-item-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.vacation-staff {
    font-weight: 600;
    color: #1f2937;
}

.vacation-period {
    color: #6b7280;
    font-size: 0.9rem;
}

.vacation-type {
    display: inline-block;
    padding: 0.1rem 0.5rem;
    border-radius: 0.25rem;
    font-size: 0.75rem;
    font-weight: 600;
    margin-top: 0.25rem;
}

.vacation-type-annual {
    background: #dbeafe;
    color: #1d4ed8;
}

.vacation-type-sick {
    background: #fee2e2;
    color: #dc2626;
}

.vacation-type-unpaid {
    background: #f3f4f6;
    color: #6b7280;
}

.vacation-type-other {
    background: #fef3c7;
    color: #d97706;
}

/* ====== ANIMATIONS ====== */
@keyframes fadeIn {
    from { opacity: 0; transform: translateY(-10px); }
    to { opacity: 1; transform: translateY(0); }
}

@keyframes slideInUp {
    from { opacity: 0; transform: translateY(20px); }
    to { opacity: 1; transform: translateY(0); }
}

@keyframes highlight {
    0% { background-color: #fef3c7; }
    100% { background-color: transparent; }
}

/* ====== RESPONSIVE DESIGN ====== */
@media (max-width: 768px) {
    .app-header h1 {
        font-size: 1.8rem;
    }
    
    .user-info {
        position: relative;
        top: auto;
        right: auto;
        margin-top: 1rem;
        justify-content: center;
    }
    
    .controls-grid {
        grid-template-columns: 1fr;
    }
    
    .button-group {
        flex-direction: column;
    }
    
    .form-row {
        grid-template-columns: 1fr;
    }
    
    .stats-panel {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 480px) {
    .stats-panel {
        grid-template-columns: 1fr;
    }
    
    .table-header {
        flex-direction: column;
        gap: 1rem;
        align-items: flex-start;
    }
    
    .table-actions {
        width: 100%;
        justify-content: space-between;
    }
}