/**
 * LeafletTracker - Main Stylesheet
 * Industrial/Utilitarian Dark Theme
 */

:root {
    /* Core palette - industrial/utilitarian */
    --bg-primary: #0f1115;
    --bg-secondary: #1a1d23;
    --bg-tertiary: #252930;
    --bg-elevated: #2d323a;
    
    /* Text */
    --text-primary: #e8eaed;
    --text-secondary: #9aa0a6;
    --text-muted: #5f6368;
    
    /* Accent - high-vis safety orange */
    --accent: #ff6b35;
    --accent-hover: #ff8c5a;
    --accent-muted: rgba(255, 107, 53, 0.15);
    
    /* Status colors */
    --success: #34d399;
    --success-bg: rgba(52, 211, 153, 0.12);
    --warning: #fbbf24;
    --warning-bg: rgba(251, 191, 36, 0.12);
    --danger: #f87171;
    --danger-bg: rgba(248, 113, 113, 0.12);
    --overdue: #ef4444;
    
    /* Borders */
    --border: #2d323a;
    --border-focus: var(--accent);
    
    /* Shadows */
    --shadow-sm: 0 1px 2px rgba(0,0,0,0.3);
    --shadow-md: 0 4px 12px rgba(0,0,0,0.4);
    --shadow-lg: 0 8px 24px rgba(0,0,0,0.5);
    
    /* Spacing */
    --space-xs: 0.25rem;
    --space-sm: 0.5rem;
    --space-md: 1rem;
    --space-lg: 1.5rem;
    --space-xl: 2rem;
    
    /* Radius */
    --radius-sm: 4px;
    --radius-md: 8px;
    --radius-lg: 12px;
    
    /* Typography */
    --font-mono: 'JetBrains Mono', 'Fira Code', monospace;
    --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
}

/* Reset & Base */
*, *::before, *::after {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

html {
    font-size: 16px;
    -webkit-tap-highlight-color: transparent;
}

body {
    font-family: var(--font-sans);
    background: var(--bg-primary);
    color: var(--text-primary);
    line-height: 1.6;
    min-height: 100vh;
    -webkit-font-smoothing: antialiased;
}

/* Typography */
h1, h2, h3, h4 {
    font-weight: 600;
    line-height: 1.3;
    letter-spacing: -0.02em;
}

h1 { font-size: 1.75rem; }
h2 { font-size: 1.375rem; }
h3 { font-size: 1.125rem; }

.text-mono {
    font-family: var(--font-mono);
    font-size: 0.875em;
}

.text-muted { color: var(--text-secondary); }
.text-accent { color: var(--accent); }

/* Layout */
.container {
    width: 100%;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--space-md);
}

.page {
    min-height: 100vh;
    display: flex;
    flex-direction: column;
}

/* Header */
.header {
    background: var(--bg-secondary);
    border-bottom: 1px solid var(--border);
    padding: var(--space-md);
    position: sticky;
    top: 0;
    z-index: 100;
}

.header-inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: var(--space-md);
}

.logo {
    display: flex;
    align-items: center;
    gap: var(--space-sm);
    font-weight: 700;
    font-size: 1.125rem;
    color: var(--text-primary);
    text-decoration: none;
}

.logo-icon {
    width: 32px;
    height: 32px;
    background: var(--accent);
    border-radius: var(--radius-sm);
    display: flex;
    align-items: center;
    justify-content: center;
}

.logo-icon svg {
    width: 20px;
    height: 20px;
    color: white;
}

/* Navigation */
.nav {
    display: flex;
    gap: var(--space-xs);
}

.nav-link {
    display: flex;
    align-items: center;
    gap: var(--space-xs);
    padding: var(--space-sm) var(--space-md);
    color: var(--text-secondary);
    text-decoration: none;
    border-radius: var(--radius-md);
    font-size: 0.875rem;
    font-weight: 500;
    transition: all 0.15s ease;
}

.nav-link:hover,
.nav-link.active {
    background: var(--bg-tertiary);
    color: var(--text-primary);
}

.nav-link.active {
    color: var(--accent);
}

/* Main content */
.main {
    flex: 1;
    padding: var(--space-lg);
}

/* Cards */
.card {
    background: var(--bg-secondary);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    overflow: hidden;
}

.card-header {
    padding: var(--space-md) var(--space-lg);
    border-bottom: 1px solid var(--border);
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: var(--space-md);
}

.card-body {
    padding: var(--space-lg);
}

.card-footer {
    padding: var(--space-md) var(--space-lg);
    border-top: 1px solid var(--border);
    background: var(--bg-tertiary);
}

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: var(--space-sm);
    padding: var(--space-sm) var(--space-md);
    font-family: inherit;
    font-size: 0.875rem;
    font-weight: 600;
    line-height: 1.5;
    text-decoration: none;
    border: none;
    border-radius: var(--radius-md);
    cursor: pointer;
    transition: all 0.15s ease;
    white-space: nowrap;
}

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

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

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

.btn-secondary {
    background: var(--bg-tertiary);
    color: var(--text-primary);
    border: 1px solid var(--border);
}

.btn-secondary:hover:not(:disabled) {
    background: var(--bg-elevated);
    border-color: var(--text-muted);
}

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

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

.btn-lg {
    padding: var(--space-md) var(--space-lg);
    font-size: 1rem;
}

.btn-sm {
    padding: var(--space-xs) var(--space-sm);
    font-size: 0.8125rem;
}

.btn-icon {
    width: 36px;
    height: 36px;
    padding: 0;
}

.btn-block {
    width: 100%;
}

/* Forms */
.form-group {
    margin-bottom: var(--space-md);
}

.form-label {
    display: block;
    margin-bottom: var(--space-xs);
    font-size: 0.875rem;
    font-weight: 500;
    color: var(--text-secondary);
}

.form-input,
.form-select,
.form-textarea {
    width: 100%;
    padding: var(--space-sm) var(--space-md);
    font-family: inherit;
    font-size: 1rem;
    color: var(--text-primary);
    background: var(--bg-tertiary);
    border: 1px solid var(--border);
    border-radius: var(--radius-md);
    transition: border-color 0.15s ease, box-shadow 0.15s ease;
}

.form-input:focus,
.form-select:focus,
.form-textarea:focus {
    outline: none;
    border-color: var(--accent);
    box-shadow: 0 0 0 3px var(--accent-muted);
}

.form-input::placeholder {
    color: var(--text-muted);
}

.form-textarea {
    min-height: 100px;
    resize: vertical;
}

.form-hint {
    margin-top: var(--space-xs);
    font-size: 0.8125rem;
    color: var(--text-muted);
}

/* Stats Grid */
.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: var(--space-md);
    margin-bottom: var(--space-lg);
}

.stat-card {
    background: var(--bg-secondary);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    padding: var(--space-lg);
}

.stat-label {
    font-size: 0.8125rem;
    color: var(--text-secondary);
    text-transform: uppercase;
    letter-spacing: 0.05em;
    margin-bottom: var(--space-xs);
}

.stat-value {
    font-size: 2rem;
    font-weight: 700;
    font-family: var(--font-mono);
    color: var(--text-primary);
}

.stat-value.success { color: var(--success); }
.stat-value.warning { color: var(--warning); }
.stat-value.danger { color: var(--danger); }

/* Zone List */
.zone-list {
    display: flex;
    flex-direction: column;
    gap: var(--space-sm);
}

.zone-item {
    display: flex;
    align-items: center;
    gap: var(--space-md);
    padding: var(--space-md);
    background: var(--bg-tertiary);
    border: 1px solid var(--border);
    border-radius: var(--radius-md);
    transition: all 0.15s ease;
}

.zone-item:hover {
    border-color: var(--text-muted);
}

.zone-status {
    width: 12px;
    height: 12px;
    border-radius: 50%;
    flex-shrink: 0;
}

.zone-status.done { background: var(--success); }
.zone-status.due { background: var(--warning); }
.zone-status.overdue { background: var(--danger); }
.zone-status.pending { background: var(--text-muted); }

.zone-info {
    flex: 1;
    min-width: 0;
}

.zone-name {
    font-weight: 600;
    margin-bottom: 2px;
}

.zone-meta {
    font-size: 0.8125rem;
    color: var(--text-secondary);
}

.zone-actions {
    display: flex;
    gap: var(--space-xs);
}

/* Status badges */
.badge {
    display: inline-flex;
    align-items: center;
    padding: 2px 8px;
    font-size: 0.75rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.03em;
    border-radius: 9999px;
}

.badge-success {
    background: var(--success-bg);
    color: var(--success);
}

.badge-warning {
    background: var(--warning-bg);
    color: var(--warning);
}

.badge-danger {
    background: var(--danger-bg);
    color: var(--danger);
}

/* Map container */
.map-container {
    width: 100%;
    height: 400px;
    border-radius: var(--radius-lg);
    overflow: hidden;
    border: 1px solid var(--border);
}

.map-container.fullscreen {
    position: fixed;
    top: 0;
    left: 0;
    width: 100vw;
    height: 100vh;
    z-index: 1000;
    border-radius: 0;
}

/* Modal */
.modal-overlay {
    position: fixed;
    inset: 0;
    background: rgba(0, 0, 0, 0.75);
    display: flex;
    align-items: center;
    justify-content: center;
    padding: var(--space-md);
    z-index: 1000;
    opacity: 0;
    visibility: hidden;
    transition: all 0.2s ease;
}

.modal-overlay.active {
    opacity: 1;
    visibility: visible;
}

.modal {
    background: var(--bg-secondary);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    width: 100%;
    max-width: 500px;
    max-height: 90vh;
    overflow-y: auto;
    transform: scale(0.95);
    transition: transform 0.2s ease;
}

.modal-overlay.active .modal {
    transform: scale(1);
}

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

.modal-title {
    font-size: 1.125rem;
    font-weight: 600;
}

.modal-close {
    width: 32px;
    height: 32px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: none;
    border: none;
    color: var(--text-secondary);
    cursor: pointer;
    border-radius: var(--radius-sm);
    transition: all 0.15s ease;
}

.modal-close:hover {
    background: var(--bg-tertiary);
    color: var(--text-primary);
}

.modal-body {
    padding: var(--space-lg);
}

.modal-footer {
    display: flex;
    justify-content: flex-end;
    gap: var(--space-sm);
    padding: var(--space-md) var(--space-lg);
    border-top: 1px solid var(--border);
    background: var(--bg-tertiary);
}

/* Toast notifications */
.toast-container {
    position: fixed;
    bottom: var(--space-lg);
    right: var(--space-lg);
    z-index: 1100;
    display: flex;
    flex-direction: column;
    gap: var(--space-sm);
}

.toast {
    display: flex;
    align-items: center;
    gap: var(--space-sm);
    padding: var(--space-md);
    background: var(--bg-elevated);
    border: 1px solid var(--border);
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-lg);
    animation: slideIn 0.3s ease;
}

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

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

/* Login page */
.login-page {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: var(--space-lg);
    background: 
        radial-gradient(ellipse at top, var(--bg-secondary) 0%, transparent 50%),
        var(--bg-primary);
}

.login-card {
    width: 100%;
    max-width: 400px;
}

.login-logo {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--space-sm);
    margin-bottom: var(--space-xl);
}

.login-logo-icon {
    width: 48px;
    height: 48px;
    background: var(--accent);
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
}

.login-logo-icon svg {
    width: 28px;
    height: 28px;
    color: white;
}

.login-logo-text {
    font-size: 1.5rem;
    font-weight: 700;
}

.login-tabs {
    display: flex;
    margin-bottom: var(--space-lg);
    background: var(--bg-tertiary);
    border-radius: var(--radius-md);
    padding: 4px;
}

.login-tab {
    flex: 1;
    padding: var(--space-sm);
    text-align: center;
    font-size: 0.875rem;
    font-weight: 600;
    color: var(--text-secondary);
    background: none;
    border: none;
    border-radius: var(--radius-sm);
    cursor: pointer;
    transition: all 0.15s ease;
}

.login-tab.active {
    background: var(--bg-secondary);
    color: var(--text-primary);
}

.login-form {
    display: none;
}

.login-form.active {
    display: block;
}

/* Empty states */
.empty-state {
    text-align: center;
    padding: var(--space-xl) var(--space-lg);
}

.empty-state-icon {
    width: 64px;
    height: 64px;
    margin: 0 auto var(--space-md);
    color: var(--text-muted);
}

.empty-state-title {
    font-size: 1.125rem;
    margin-bottom: var(--space-xs);
}

.empty-state-text {
    color: var(--text-secondary);
    margin-bottom: var(--space-md);
}

/* Loading spinner */
.spinner {
    width: 20px;
    height: 20px;
    border: 2px solid var(--border);
    border-top-color: var(--accent);
    border-radius: 50%;
    animation: spin 0.8s linear infinite;
}

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

/* Responsive */
@media (max-width: 768px) {
    .header-inner {
        flex-wrap: wrap;
    }
    
    .nav {
        order: 3;
        width: 100%;
        justify-content: center;
        margin-top: var(--space-sm);
    }
    
    .stats-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .zone-item {
        flex-wrap: wrap;
    }
    
    .zone-actions {
        width: 100%;
        margin-top: var(--space-sm);
    }
    
    .zone-actions .btn {
        flex: 1;
    }
}

/* Leaflet overrides for dark theme */
.leaflet-container {
    background: var(--bg-tertiary);
}

.leaflet-popup-content-wrapper {
    background: var(--bg-secondary);
    color: var(--text-primary);
    border-radius: var(--radius-md);
}

.leaflet-popup-tip {
    background: var(--bg-secondary);
}

.leaflet-control-zoom a {
    background: var(--bg-secondary) !important;
    color: var(--text-primary) !important;
    border-color: var(--border) !important;
}

.leaflet-control-zoom a:hover {
    background: var(--bg-tertiary) !important;
}

/* PWA Install prompt */
.install-prompt {
    position: fixed;
    bottom: var(--space-lg);
    left: var(--space-lg);
    right: var(--space-lg);
    background: var(--bg-secondary);
    border: 1px solid var(--accent);
    border-radius: var(--radius-lg);
    padding: var(--space-md);
    display: flex;
    align-items: center;
    gap: var(--space-md);
    box-shadow: var(--shadow-lg);
    z-index: 1000;
    transform: translateY(150%);
    transition: transform 0.3s ease;
}

.install-prompt.show {
    transform: translateY(0);
}

.install-prompt-text {
    flex: 1;
}

.install-prompt-title {
    font-weight: 600;
    margin-bottom: 2px;
}

.install-prompt-desc {
    font-size: 0.875rem;
    color: var(--text-secondary);
}