/* ============================================
   Modern Mobile-First Design for AccessPointApp
   ============================================ */

:root {
    /* Primary Colors */
    --primary: #4F46E5;
    --primary-dark: #4338CA;
    --primary-light: #818CF8;
    
    /* Success/Error Colors */
    --success: #10B981;
    --success-dark: #059669;
    --error: #EF4444;
    --error-dark: #DC2626;
    --warning: #F59E0B;
    --info: #3B82F6;
    
    /* Neutral Colors */
    --gray-50: #F9FAFB;
    --gray-100: #F3F4F6;
    --gray-200: #E5E7EB;
    --gray-300: #D1D5DB;
    --gray-500: #6B7280;
    --gray-700: #374151;
    --gray-900: #111827;
    
    /* Spacing */
    --spacing-xs: 0.5rem;
    --spacing-sm: 0.75rem;
    --spacing-md: 1rem;
    --spacing-lg: 1.5rem;
    --spacing-xl: 2rem;
    
    /* Border Radius */
    --radius-sm: 0.5rem;
    --radius-md: 0.75rem;
    --radius-lg: 1rem;
    --radius-full: 9999px;
    
    /* 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);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1);
    --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1);
    
    /* Transitions */
    --transition-fast: 150ms ease-in-out;
    --transition-base: 250ms ease-in-out;
}

/* ============================================
   Base Styles
   ============================================ */

* {
    box-sizing: border-box;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
    background: var(--gray-50);
    color: var(--gray-900);
    line-height: 1.6;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

.container {
    max-width: 100%;
    padding-left: var(--spacing-md);
    padding-right: var(--spacing-md);
    margin: 0 auto;
}

@media (min-width: 768px) {
    .container {
        max-width: 768px;
        padding-left: var(--spacing-lg);
        padding-right: var(--spacing-lg);
    }
}

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

/* ============================================
   Modern Cards
   ============================================ */

.modern-card {
    background: white;
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-md);
    padding: var(--spacing-lg);
    margin-bottom: var(--spacing-lg);
    transition: transform var(--transition-base), box-shadow var(--transition-base);
}

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

.modern-card-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: var(--spacing-lg);
    padding-bottom: var(--spacing-md);
    border-bottom: 2px solid var(--gray-100);
}

.modern-card-title {
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--gray-900);
    margin: 0;
}

.modern-card-body {
    padding: 0;
}

/* ============================================
   Buttons - Touch Optimized (min 44px)
   ============================================ */

.btn-modern {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-height: 44px;
    padding: 0.75rem 1.5rem;
    font-size: 1rem;
    font-weight: 600;
    border-radius: var(--radius-md);
    border: none;
    cursor: pointer;
    transition: all var(--transition-fast);
    text-decoration: none;
    white-space: nowrap;
    -webkit-tap-highlight-color: transparent;
}

.btn-modern:active {
    transform: scale(0.98);
}

.btn-primary-modern {
    background: linear-gradient(135deg, var(--primary) 0%, var(--primary-dark) 100%);
    color: white;
    box-shadow: 0 4px 14px 0 rgba(79, 70, 229, 0.39);
}

.btn-primary-modern:hover {
    box-shadow: 0 6px 20px rgba(79, 70, 229, 0.5);
    transform: translateY(-2px);
}

.btn-success-modern {
    background: linear-gradient(135deg, var(--success) 0%, var(--success-dark) 100%);
    color: white;
    box-shadow: 0 4px 14px 0 rgba(16, 185, 129, 0.39);
}

.btn-success-modern:hover {
    box-shadow: 0 6px 20px rgba(16, 185, 129, 0.5);
    transform: translateY(-2px);
}

.btn-danger-modern {
    background: linear-gradient(135deg, var(--error) 0%, var(--error-dark) 100%);
    color: white;
    box-shadow: 0 4px 14px 0 rgba(239, 68, 68, 0.39);
}

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

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

.btn-full {
    width: 100%;
}

.btn-icon {
    width: 44px;
    height: 44px;
    padding: 0;
    border-radius: var(--radius-full);
}

/* ============================================
   Forms - Mobile Optimized
   ============================================ */

.form-group-modern {
    margin-bottom: var(--spacing-lg);
}

.form-label-modern {
    display: block;
    font-size: 0.875rem;
    font-weight: 600;
    color: var(--gray-700);
    margin-bottom: var(--spacing-xs);
}

.form-control-modern {
    width: 100%;
    min-height: 44px;
    padding: 0.75rem;
    font-size: 1rem;
    border: 2px solid var(--gray-200);
    border-radius: var(--radius-md);
    background: white;
    transition: all var(--transition-fast);
}

.form-control-modern:focus {
    outline: none;
    border-color: var(--primary);
    box-shadow: 0 0 0 3px rgba(79, 70, 229, 0.1);
}

.form-select-modern {
    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 8l4 4 4-4'/%3E%3C/svg%3E");
    background-position: right 0.75rem center;
    background-repeat: no-repeat;
    background-size: 1.5em 1.5em;
    padding-right: 2.5rem;
}

/* ============================================
   Status Badges
   ============================================ */

.badge-modern {
    display: inline-flex;
    align-items: center;
    gap: 0.25rem;
    padding: 0.375rem 0.75rem;
    font-size: 0.875rem;
    font-weight: 600;
    border-radius: var(--radius-full);
    white-space: nowrap;
}

.badge-success {
    background: rgba(16, 185, 129, 0.1);
    color: var(--success-dark);
}

.badge-error {
    background: rgba(239, 68, 68, 0.1);
    color: var(--error-dark);
}

.badge-warning {
    background: rgba(245, 158, 11, 0.1);
    color: #D97706;
}

.badge-info {
    background: rgba(59, 130, 246, 0.1);
    color: #2563EB;
}

/* ============================================
   Check-in Result Page - Mobile Hero
   ============================================ */

.checkin-hero {
    text-align: center;
    padding: var(--spacing-xl) var(--spacing-md);
}

.checkin-icon {
    width: 120px;
    height: 120px;
    margin: 0 auto var(--spacing-lg);
    border-radius: var(--radius-full);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 4rem;
    animation: scaleIn 0.3s ease-out;
}

.checkin-icon-success {
    background: linear-gradient(135deg, var(--success) 0%, var(--success-dark) 100%);
    box-shadow: 0 10px 30px rgba(16, 185, 129, 0.3);
}

.checkin-icon-error {
    background: linear-gradient(135deg, var(--error) 0%, var(--error-dark) 100%);
    box-shadow: 0 10px 30px rgba(239, 68, 68, 0.3);
}

@keyframes scaleIn {
    from {
        transform: scale(0);
        opacity: 0;
    }
    to {
        transform: scale(1);
        opacity: 1;
    }
}

.checkin-title {
    font-size: 1.75rem;
    font-weight: 800;
    margin-bottom: var(--spacing-md);
    color: var(--gray-900);
}

.checkin-details {
    background: var(--gray-50);
    border-radius: var(--radius-md);
    padding: var(--spacing-lg);
    margin-top: var(--spacing-lg);
}

.checkin-detail-item {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: var(--spacing-sm) 0;
    border-bottom: 1px solid var(--gray-200);
}

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

.checkin-detail-label {
    font-size: 0.875rem;
    color: var(--gray-500);
    font-weight: 500;
}

.checkin-detail-value {
    font-size: 1rem;
    font-weight: 700;
    color: var(--gray-900);
}

/* ============================================
   Loading States
   ============================================ */

.loading-container {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: var(--spacing-xl);
    min-height: 50vh;
}

.spinner-modern {
    width: 60px;
    height: 60px;
    border: 4px solid var(--gray-200);
    border-top-color: var(--primary);
    border-radius: 50%;
    animation: spin 0.8s linear infinite;
}

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

.loading-text {
    margin-top: var(--spacing-lg);
    font-size: 1rem;
    font-weight: 600;
    color: var(--gray-700);
}

/* ============================================
   Statistics Cards
   ============================================ */

.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(140px, 1fr));
    gap: var(--spacing-md);
    margin-bottom: var(--spacing-xl);
}

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

.stat-card:hover {
    box-shadow: var(--shadow-md);
    transform: translateY(-4px);
}

.stat-icon {
    width: 48px;
    height: 48px;
    margin: 0 auto var(--spacing-sm);
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
}

.stat-icon-primary {
    background: linear-gradient(135deg, rgba(79, 70, 229, 0.1) 0%, rgba(67, 56, 202, 0.2) 100%);
    color: var(--primary);
}

.stat-icon-success {
    background: linear-gradient(135deg, rgba(16, 185, 129, 0.1) 0%, rgba(5, 150, 105, 0.2) 100%);
    color: var(--success);
}

.stat-icon-warning {
    background: linear-gradient(135deg, rgba(245, 158, 11, 0.1) 0%, rgba(217, 119, 6, 0.2) 100%);
    color: var(--warning);
}

.stat-icon-info {
    background: linear-gradient(135deg, rgba(59, 130, 246, 0.1) 0%, rgba(37, 99, 235, 0.2) 100%);
    color: var(--info);
}

.stat-value {
    font-size: 2rem;
    font-weight: 800;
    color: var(--gray-900);
    line-height: 1;
    margin-bottom: var(--spacing-xs);
}

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

/* ============================================
   Tables - Mobile Responsive
   ============================================ */

.table-modern {
    width: 100%;
    background: white;
    border-radius: var(--radius-lg);
    overflow: hidden;
    box-shadow: var(--shadow-sm);
}

.table-modern thead {
    background: var(--gray-50);
}

.table-modern th {
    padding: var(--spacing-md);
    text-align: left;
    font-size: 0.75rem;
    font-weight: 700;
    text-transform: uppercase;
    color: var(--gray-500);
    letter-spacing: 0.05em;
}

.table-modern td {
    padding: var(--spacing-md);
    border-top: 1px solid var(--gray-100);
    font-size: 0.875rem;
    color: var(--gray-900);
}

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

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

/* Mobile: Convert table to cards */
@media (max-width: 640px) {
    .table-modern-mobile-cards {
        border: 0;
    }
    
    .table-modern-mobile-cards thead {
        display: none;
    }
    
    .table-modern-mobile-cards tr {
        display: block;
        margin-bottom: var(--spacing-md);
        background: white;
        border-radius: var(--radius-md);
        box-shadow: var(--shadow-sm);
        padding: var(--spacing-md);
    }
    
    .table-modern-mobile-cards td {
        display: flex;
        justify-content: space-between;
        align-items: center;
        padding: var(--spacing-sm) 0;
        border: 0;
    }
    
    .table-modern-mobile-cards td:before {
        content: attr(data-label);
        font-weight: 700;
        color: var(--gray-500);
        font-size: 0.75rem;
        text-transform: uppercase;
    }
}

/* ============================================
   Navigation Tabs
   ============================================ */

.nav-tabs-modern {
    display: flex;
    gap: var(--spacing-xs);
    background: white;
    padding: var(--spacing-xs);
    border-radius: var(--radius-md);
    margin-bottom: var(--spacing-lg);
    box-shadow: var(--shadow-sm);
    overflow-x: auto;
    -webkit-overflow-scrolling: touch;
}

.nav-tab-modern {
    flex: 1;
    min-width: max-content;
    padding: var(--spacing-sm) var(--spacing-md);
    font-size: 0.875rem;
    font-weight: 600;
    color: var(--gray-500);
    background: transparent;
    border: none;
    border-radius: var(--radius-sm);
    cursor: pointer;
    transition: all var(--transition-fast);
    white-space: nowrap;
}

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

.nav-tab-modern.active {
    color: white;
    background: var(--primary);
    box-shadow: var(--shadow-sm);
}

/* ============================================
   Alerts/Toasts
   ============================================ */

.alert-modern {
    padding: var(--spacing-md);
    border-radius: var(--radius-md);
    margin-bottom: var(--spacing-md);
    display: flex;
    align-items: flex-start;
    gap: var(--spacing-sm);
}

.alert-success {
    background: rgba(16, 185, 129, 0.1);
    border-left: 4px solid var(--success);
    color: var(--success-dark);
}

.alert-error {
    background: rgba(239, 68, 68, 0.1);
    border-left: 4px solid var(--error);
    color: var(--error-dark);
}

.alert-warning {
    background: rgba(245, 158, 11, 0.1);
    border-left: 4px solid var(--warning);
    color: #D97706;
}

.alert-info {
    background: rgba(59, 130, 246, 0.1);
    border-left: 4px solid var(--info);
    color: #2563EB;
}

/* ============================================
   Bottom Navigation (Mobile)
   ============================================ */

.bottom-nav {
    position: fixed;
    bottom: 0;
    left: 0;
    right: 0;
    background: white;
    box-shadow: 0 -2px 10px rgba(0, 0, 0, 0.1);
    padding: var(--spacing-xs) 0;
    z-index: 1000;
    display: none;
}

@media (max-width: 768px) {
    .bottom-nav {
        display: flex;
    }
    
    body {
        padding-bottom: 70px;
    }
}

.bottom-nav-item {
    flex: 1;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: var(--spacing-xs);
    color: var(--gray-500);
    text-decoration: none;
    font-size: 0.75rem;
    font-weight: 600;
    transition: color var(--transition-fast);
}

.bottom-nav-item:hover,
.bottom-nav-item.active {
    color: var(--primary);
}

.bottom-nav-icon {
    font-size: 1.5rem;
    margin-bottom: 0.25rem;
}

/* ============================================
   Floating Action Button
   ============================================ */

.fab {
    position: fixed;
    bottom: 80px;
    right: var(--spacing-lg);
    width: 56px;
    height: 56px;
    border-radius: var(--radius-full);
    background: linear-gradient(135deg, var(--primary) 0%, var(--primary-dark) 100%);
    color: white;
    border: none;
    box-shadow: 0 4px 14px 0 rgba(79, 70, 229, 0.39);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    cursor: pointer;
    transition: all var(--transition-base);
    z-index: 999;
}

.fab:hover {
    transform: scale(1.1);
    box-shadow: 0 6px 20px rgba(79, 70, 229, 0.5);
}

.fab:active {
    transform: scale(0.95);
}

/* ============================================
   Utilities
   ============================================ */

.text-center {
    text-align: center;
}

.mt-sm { margin-top: var(--spacing-sm); }
.mt-md { margin-top: var(--spacing-md); }
.mt-lg { margin-top: var(--spacing-lg); }
.mt-xl { margin-top: var(--spacing-xl); }

.mb-sm { margin-bottom: var(--spacing-sm); }
.mb-md { margin-bottom: var(--spacing-md); }
.mb-lg { margin-bottom: var(--spacing-lg); }
.mb-xl { margin-bottom: var(--spacing-xl); }

.p-sm { padding: var(--spacing-sm); }
.p-md { padding: var(--spacing-md); }
.p-lg { padding: var(--spacing-lg); }

.gap-sm { gap: var(--spacing-sm); }
.gap-md { gap: var(--spacing-md); }
.gap-lg { gap: var(--spacing-lg); }

.d-flex { display: flex; }
.align-center { align-items: center; }
.justify-between { justify-content: space-between; }
.justify-center { justify-content: center; }

.w-full { width: 100%; }
.h-full { height: 100%; }

/* ============================================
   Dark Mode Support (Optional)
   ============================================ */

@media (prefers-color-scheme: dark) {
    :root {
        --gray-50: #1F2937;
        --gray-100: #374151;
        --gray-900: #F9FAFB;
    }
    
    body {
        background: #111827;
        color: #F9FAFB;
    }
    
    .modern-card,
    .stat-card,
    .table-modern,
    .btn-outline-modern {
        background: #1F2937;
        border-color: #374151;
    }
}

/* ============================================
   PWA Install Prompt
   ============================================ */

.install-prompt {
    position: fixed;
    bottom: 80px;
    left: var(--spacing-md);
    right: var(--spacing-md);
    background: white;
    border-radius: var(--radius-lg);
    padding: var(--spacing-lg);
    box-shadow: var(--shadow-xl);
    z-index: 1001;
    animation: slideUp 0.3s ease-out;
}

@keyframes slideUp {
    from {
        transform: translateY(100%);
        opacity: 0;
    }
    to {
        transform: translateY(0);
        opacity: 1;
    }
}