/**
 * HADIR MJM Battery - Custom Styles
 * Mobile-first GPS Attendance System
 */

/* ============================================
   CSS Variables
   ============================================ */
:root {
    --primary-color: #2563eb;
    --primary-hover: #1d4ed8;
    --success-color: #16a34a;
    --success-hover: #15803d;
    --warning-color: #ca8a04;
    --warning-hover: #a16207;
    --danger-color: #dc2626;
    --danger-hover: #b91c1c;
    --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;
    --border-radius: 8px;
    --shadow-sm: 0 1px 2px 0 rgb(0 0 0 / 0.05);
    --shadow: 0 1px 3px 0 rgb(0 0 0 / 0.1), 0 1px 2px -1px rgb(0 0 0 / 0.1);
    --shadow-md: 0 4px 6px -1px rgb(0 0 0 / 0.1), 0 2px 4px -2px rgb(0 0 0 / 0.1);
    --shadow-lg: 0 10px 15px -3px rgb(0 0 0 / 0.1), 0 4px 6px -4px rgb(0 0 0 / 0.1);
}

/* ============================================
   Base Styles
   ============================================ */
* {
    box-sizing: border-box;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
    background-color: var(--gray-100);
    color: var(--gray-800);
    margin: 0;
    padding: 0;
    line-height: 1.5;
}

/* ============================================
   Typography
   ============================================ */
h1, h2, h3, h4, h5, h6 {
    margin-top: 0;
    margin-bottom: 0.5rem;
    font-weight: 600;
    line-height: 1.2;
}

.text-sm { font-size: 0.875rem; }
.text-lg { font-size: 1.125rem; }
.text-xl { font-size: 1.25rem; }
.text-2xl { font-size: 1.5rem; }
.text-center { text-align: center; }

.text-muted { color: var(--gray-500); }
.text-success { color: var(--success-color); }
.text-warning { color: var(--warning-color); }
.text-danger { color: var(--danger-color); }
.text-primary { color: var(--primary-color); }

/* ============================================
   Layout
   ============================================ */
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 1rem;
}

.container-sm {
    max-width: 480px;
    margin: 0 auto;
    padding: 0 1rem;
}

/* ============================================
   Cards
   ============================================ */
.card {
    background: white;
    border-radius: var(--border-radius);
    box-shadow: var(--shadow);
    margin-bottom: 1rem;
}

.card-header {
    padding: 1rem;
    border-bottom: 1px solid var(--gray-200);
    font-weight: 600;
}

.card-body {
    padding: 1rem;
}

.card-footer {
    padding: 1rem;
    border-top: 1px solid var(--gray-200);
    background: var(--gray-50);
}

/* ============================================
   Buttons
   ============================================ */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    padding: 0.625rem 1.25rem;
    font-size: 1rem;
    font-weight: 500;
    border: none;
    border-radius: var(--border-radius);
    cursor: pointer;
    transition: all 0.15s ease;
    text-decoration: none;
}

.btn:disabled {
    opacity: 0.6;
    cursor: not-allowed;
}

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

.btn-primary:hover:not(:disabled) {
    background-color: var(--primary-hover);
}

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

.btn-success:hover:not(:disabled) {
    background-color: var(--success-hover);
}

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

.btn-warning:hover:not(:disabled) {
    background-color: var(--warning-hover);
}

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

.btn-danger:hover:not(:disabled) {
    background-color: var(--danger-hover);
}

.btn-outline {
    background-color: transparent;
    border: 1px solid var(--gray-300);
    color: var(--gray-700);
}

.btn-outline:hover:not(:disabled) {
    background-color: var(--gray-100);
}

.btn-block {
    display: flex;
    width: 100%;
}

.btn-lg {
    padding: 1rem 2rem;
    font-size: 1.125rem;
}

.btn-sm {
    padding: 0.375rem 0.75rem;
    font-size: 0.875rem;
}

/* ============================================
   Forms
   ============================================ */
.form-group {
    margin-bottom: 1rem;
}

.form-label {
    display: block;
    margin-bottom: 0.375rem;
    font-weight: 500;
    color: var(--gray-700);
}

.form-control {
    display: block;
    width: 100%;
    padding: 0.625rem;
    font-size: 1rem;
    border: 1px solid var(--gray-300);
    border-radius: var(--border-radius);
    background-color: white;
    transition: border-color 0.15s ease, box-shadow 0.15s ease;
}

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

.form-control:disabled {
    background-color: var(--gray-100);
}

.form-select {
    appearance: none;
    background-image: url("data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' fill='none' viewBox='0 0 20 20'%3e%3cpath stroke='%236b7280' stroke-linecap='round' stroke-linejoin='round' stroke-width='1.5' d='m6 8 4 4 4-4'/%3e%3c/svg%3e");
    background-position: right 0.5rem center;
    background-repeat: no-repeat;
    background-size: 1.5em 1.5em;
    padding-right: 2.5rem;
}

.form-text {
    margin-top: 0.25rem;
    font-size: 0.875rem;
    color: var(--gray-500);
}

.form-error {
    margin-top: 0.25rem;
    font-size: 0.875rem;
    color: var(--danger-color);
}

/* ============================================
   Tables
   ============================================ */
.table-container {
    overflow-x: auto;
}

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

.table th,
.table td {
    padding: 0.75rem;
    text-align: left;
    border-bottom: 1px solid var(--gray-200);
}

.table th {
    background-color: var(--gray-50);
    font-weight: 600;
    white-space: nowrap;
}

.table tbody tr:hover {
    background-color: var(--gray-50);
}

/* ============================================
   Badges
   ============================================ */
.badge {
    display: inline-flex;
    align-items: center;
    padding: 0.25rem 0.625rem;
    font-size: 0.75rem;
    font-weight: 500;
    border-radius: 9999px;
}

.badge-success {
    background-color: #dcfce7;
    color: #166534;
}

.badge-warning {
    background-color: #fef9c3;
    color: #854d0e;
}

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

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

/* ============================================
   Alerts
   ============================================ */
.alert {
    padding: 1rem;
    border-radius: var(--border-radius);
    margin-bottom: 1rem;
}

.alert-success {
    background-color: #dcfce7;
    border: 1px solid #bbf7d0;
    color: #166534;
}

.alert-warning {
    background-color: #fef9c3;
    border: 1px solid #fef08a;
    color: #854d0e;
}

.alert-danger {
    background-color: #fee2e2;
    border: 1px solid #fecaca;
    color: #991b1b;
}

.alert-info {
    background-color: #dbeafe;
    border: 1px solid #bfdbfe;
    color: #1e40af;
}

/* ============================================
   Stats Cards (Dashboard)
   ============================================ */
.stats-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 1rem;
    margin-bottom: 1.5rem;
}

@media (min-width: 768px) {
    .stats-grid {
        grid-template-columns: repeat(4, 1fr);
    }
}

.stat-card {
    background: white;
    border-radius: var(--border-radius);
    padding: 1.25rem;
    box-shadow: var(--shadow);
}

.stat-card .stat-icon {
    font-size: 1.5rem;
    margin-bottom: 0.5rem;
}

.stat-card .stat-value {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--gray-800);
}

.stat-card .stat-label {
    font-size: 0.875rem;
    color: var(--gray-500);
}

/* ============================================
   GPS Attendance (Mobile)
   ============================================ */
.gps-container {
    text-align: center;
    padding: 1.5rem;
}

.gps-status {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 0.5rem;
    margin-bottom: 1.5rem;
}

.gps-icon {
    font-size: 3rem;
}

.gps-icon.loading {
    animation: pulse 1.5s ease-in-out infinite;
}

.gps-distance {
    font-size: 2rem;
    font-weight: 700;
}

.gps-distance.in-range {
    color: var(--success-color);
}

.gps-distance.out-of-range {
    color: var(--danger-color);
}

.gps-info {
    font-size: 0.875rem;
    color: var(--gray-500);
    margin-bottom: 1.5rem;
}

.checkin-btn {
    width: 200px;
    height: 200px;
    border-radius: 50%;
    font-size: 1.25rem;
    font-weight: 600;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    margin: 0 auto;
    transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.checkin-btn:not(:disabled):hover {
    transform: scale(1.05);
}

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

.checkin-btn .time {
    font-size: 1.5rem;
    margin-top: 0.5rem;
}

.checkin-btn.checkin {
    background: linear-gradient(135deg, var(--success-color) 0%, #22c55e 100%);
    color: white;
    box-shadow: 0 10px 25px rgba(22, 163, 74, 0.3);
}

.checkin-btn.checkout {
    background: linear-gradient(135deg, var(--danger-color) 0%, #ef4444 100%);
    color: white;
    box-shadow: 0 10px 25px rgba(220, 38, 38, 0.3);
}

@keyframes pulse {
    0%, 100% { opacity: 1; }
    50% { opacity: 0.5; }
}

/* ============================================
   Admin Sidebar
   ============================================ */
.admin-layout {
    display: flex;
    min-height: 100vh;
}

.sidebar {
    width: 250px;
    background: var(--gray-800);
    color: white;
    position: fixed;
    top: 0;
    left: 0;
    height: 100vh;
    overflow-y: auto;
    transition: transform 0.3s ease;
    z-index: 100;
}

.sidebar-header {
    padding: 1.25rem;
    border-bottom: 1px solid var(--gray-700);
    font-weight: 700;
    font-size: 1.125rem;
}

.sidebar-nav {
    padding: 0.5rem 0;
}

.sidebar-nav a {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    padding: 0.75rem 1.25rem;
    color: var(--gray-300);
    text-decoration: none;
    transition: background-color 0.15s ease, color 0.15s ease;
}

.sidebar-nav a:hover,
.sidebar-nav a.active {
    background-color: var(--gray-700);
    color: white;
}

.sidebar-nav a.active {
    border-left: 3px solid var(--primary-color);
}

.main-content {
    flex: 1;
    margin-left: 250px;
    padding: 1.5rem;
    min-height: 100vh;
}

@media (max-width: 768px) {
    .sidebar {
        transform: translateX(-100%);
    }

    .sidebar.open {
        transform: translateX(0);
    }

    .main-content {
        margin-left: 0;
    }
}

/* ============================================
   Mobile Header
   ============================================ */
.mobile-header {
    display: none;
    background: var(--gray-800);
    color: white;
    padding: 1rem;
    position: sticky;
    top: 0;
    z-index: 50;
}

@media (max-width: 768px) {
    .mobile-header {
        display: flex;
        align-items: center;
        justify-content: space-between;
    }
}

.menu-toggle {
    background: none;
    border: none;
    color: white;
    font-size: 1.5rem;
    cursor: pointer;
}

/* ============================================
   Login Page
   ============================================ */
.login-container {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 1rem;
}

.login-card {
    width: 100%;
    max-width: 400px;
    background: white;
    border-radius: var(--border-radius);
    box-shadow: var(--shadow-lg);
    padding: 2rem;
}

.login-logo {
    text-align: center;
    margin-bottom: 1.5rem;
}

.login-logo h1 {
    font-size: 1.5rem;
    color: var(--primary-color);
}

/* ============================================
   Utilities
   ============================================ */
.mt-1 { margin-top: 0.25rem; }
.mt-2 { margin-top: 0.5rem; }
.mt-3 { margin-top: 0.75rem; }
.mt-4 { margin-top: 1rem; }
.mb-1 { margin-bottom: 0.25rem; }
.mb-2 { margin-bottom: 0.5rem; }
.mb-3 { margin-bottom: 0.75rem; }
.mb-4 { margin-bottom: 1rem; }
.p-2 { padding: 0.5rem; }
.p-3 { padding: 0.75rem; }
.p-4 { padding: 1rem; }

.d-flex { display: flex; }
.align-center { align-items: center; }
.justify-between { justify-content: space-between; }
.gap-2 { gap: 0.5rem; }
.gap-3 { gap: 0.75rem; }

.hidden { display: none !important; }

/* ============================================
   Loading Spinner
   ============================================ */
.spinner {
    width: 24px;
    height: 24px;
    border: 3px solid var(--gray-200);
    border-top-color: var(--primary-color);
    border-radius: 50%;
    animation: spin 0.8s linear infinite;
}

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

/* ============================================
   Today's Attendance Card
   ============================================ */
.today-attendance {
    background: white;
    border-radius: var(--border-radius);
    padding: 1rem;
    margin-bottom: 1rem;
}

.attendance-row {
    display: flex;
    justify-content: space-between;
    padding: 0.5rem 0;
    border-bottom: 1px solid var(--gray-100);
}

.attendance-row:last-child {
    border-bottom: none;
}

.attendance-time {
    font-weight: 600;
}