/* 
 * Location Sharing App Styles
 * Mobile-first, elder-friendly design
 * High contrast, large touch targets
 */

/* ============================================
   CSS Variables - Color Theme
   ============================================ */
:root {
    /* Primary palette - warm, trustworthy greens */
    --color-primary: #1a7f5a;
    --color-primary-dark: #145c42;
    --color-primary-light: #2aa876;
    
    /* Accent colors */
    --color-accent: #ff6b35;
    --color-accent-light: #ff8c5a;
    
    /* Status colors */
    --color-success: #27ae60;
    --color-warning: #f39c12;
    --color-danger: #e74c3c;
    --color-info: #3498db;
    
    /* Neutrals */
    --color-bg: #f5f7f6;
    --color-bg-dark: #e8eeeb;
    --color-surface: #ffffff;
    --color-text: #2c3e50;
    --color-text-light: #5d6d7e;
    --color-text-muted: #95a5a6;
    
    /* Map markers */
    --color-host: #e74c3c;
    --color-visitor: #27ae60;
    
    /* Shadows */
    --shadow-sm: 0 2px 4px rgba(0,0,0,0.08);
    --shadow-md: 0 4px 12px rgba(0,0,0,0.12);
    --shadow-lg: 0 8px 24px rgba(0,0,0,0.16);
    
    /* Spacing */
    --spacing-xs: 0.5rem;
    --spacing-sm: 1rem;
    --spacing-md: 1.5rem;
    --spacing-lg: 2rem;
    --spacing-xl: 3rem;
    
    /* Border radius */
    --radius-sm: 8px;
    --radius-md: 12px;
    --radius-lg: 20px;
    --radius-full: 50%;
    
    /* Typography */
    --font-family: 'Segoe UI', 'SF Pro Display', -apple-system, BlinkMacSystemFont, sans-serif;
    --font-size-sm: 0.9rem;
    --font-size-base: 1.1rem;
    --font-size-lg: 1.3rem;
    --font-size-xl: 1.6rem;
    --font-size-2xl: 2rem;
    --font-size-3xl: 2.5rem;
}

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

html {
    font-size: 16px;
    -webkit-text-size-adjust: 100%;
}

body {
    font-family: var(--font-family);
    font-size: var(--font-size-base);
    line-height: 1.6;
    color: var(--color-text);
    background: var(--color-bg);
    min-height: 100vh;
    min-height: 100dvh;
    overflow-x: hidden;
}

/* ============================================
   Container & Layout
   ============================================ */
.container {
    width: 100%;
    min-height: 100vh;
    min-height: 100dvh;
}

/* ============================================
   Home Page Styles
   ============================================ */
.home-page {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    min-height: 100vh;
    min-height: 100dvh;
    padding: var(--spacing-lg);
    background: linear-gradient(135deg, #f5f7f6 0%, #e8f4f0 50%, #d4ede5 100%);
}

.hero {
    text-align: center;
    margin-bottom: var(--spacing-xl);
}

.icon-container {
    margin-bottom: var(--spacing-md);
}

.main-icon {
    font-size: 4rem;
    filter: drop-shadow(0 4px 8px rgba(0,0,0,0.2));
    animation: gentle-bounce 2s ease-in-out infinite;
}

@keyframes gentle-bounce {
    0%, 100% { transform: translateY(0); }
    50% { transform: translateY(-8px); }
}

.hero h1 {
    font-size: var(--font-size-2xl);
    font-weight: 700;
    color: var(--color-primary-dark);
    margin-bottom: var(--spacing-xs);
}

.subtitle {
    font-size: var(--font-size-lg);
    color: var(--color-text-light);
}

/* ============================================
   Buttons
   ============================================ */
.btn-primary {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-sm);
    background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-primary-dark) 100%);
    color: white;
    border: none;
    border-radius: var(--radius-lg);
    padding: var(--spacing-md) var(--spacing-lg);
    font-size: var(--font-size-lg);
    font-weight: 600;
    cursor: pointer;
    text-decoration: none;
    box-shadow: var(--shadow-md), 0 4px 0 var(--color-primary-dark);
    transition: all 0.2s ease;
    min-height: 60px;
    min-width: 200px;
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg), 0 6px 0 var(--color-primary-dark);
}

.btn-primary:active {
    transform: translateY(2px);
    box-shadow: var(--shadow-sm), 0 2px 0 var(--color-primary-dark);
}

.btn-large {
    padding: var(--spacing-lg) var(--spacing-xl);
    font-size: var(--font-size-xl);
    min-height: 80px;
    min-width: 280px;
    border-radius: var(--radius-lg);
}

.btn-medium {
    padding: var(--spacing-sm) var(--spacing-lg);
    font-size: var(--font-size-base);
    min-height: 50px;
    min-width: 160px;
}

.btn-secondary {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-xs);
    background: var(--color-surface);
    color: var(--color-primary);
    border: 2px solid var(--color-primary);
    border-radius: var(--radius-md);
    padding: var(--spacing-sm) var(--spacing-md);
    font-size: var(--font-size-base);
    font-weight: 600;
    cursor: pointer;
    text-decoration: none;
    transition: all 0.2s ease;
    min-height: 50px;
}

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

.btn-danger {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    background: var(--color-danger);
    color: white;
    border: none;
    border-radius: var(--radius-md);
    padding: var(--spacing-sm) var(--spacing-md);
    font-size: var(--font-size-base);
    font-weight: 600;
    cursor: pointer;
    min-height: 50px;
    min-width: 100px;
    transition: all 0.2s ease;
}

.btn-danger:hover {
    background: #c0392b;
}

.btn-text {
    background: none;
    border: none;
    color: var(--color-text-light);
    font-size: var(--font-size-base);
    cursor: pointer;
    padding: var(--spacing-sm);
    text-decoration: underline;
}

.btn-icon {
    font-size: 1.4em;
}

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

.hint {
    margin-top: var(--spacing-md);
    color: var(--color-text-muted);
    font-size: var(--font-size-sm);
}

/* ============================================
   State Containers
   ============================================ */
.state-container {
    text-align: center;
    padding: var(--spacing-lg);
    background: var(--color-surface);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-md);
    max-width: 400px;
    width: 100%;
}

.hidden {
    display: none !important;
}

/* Loading spinner */
.spinner {
    width: 60px;
    height: 60px;
    border: 4px solid var(--color-bg-dark);
    border-top-color: var(--color-primary);
    border-radius: 50%;
    margin: 0 auto var(--spacing-md);
    animation: spin 1s linear infinite;
}

.spinner-small {
    width: 24px;
    height: 24px;
    border: 3px solid var(--color-bg-dark);
    border-top-color: var(--color-primary);
    border-radius: 50%;
    animation: spin 1s linear infinite;
}

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

/* Success state */
.success-icon {
    width: 70px;
    height: 70px;
    background: var(--color-success);
    color: white;
    font-size: var(--font-size-2xl);
    font-weight: bold;
    border-radius: var(--radius-full);
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto var(--spacing-md);
}

/* Error state */
.error-icon {
    width: 70px;
    height: 70px;
    background: var(--color-danger);
    color: white;
    font-size: var(--font-size-2xl);
    font-weight: bold;
    border-radius: var(--radius-full);
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto var(--spacing-md);
}

/* ============================================
   Share Link Section
   ============================================ */
.link-container {
    display: flex;
    gap: var(--spacing-xs);
    margin: var(--spacing-md) 0;
}

.share-link-input {
    flex: 1;
    padding: var(--spacing-sm);
    font-size: var(--font-size-sm);
    border: 2px solid var(--color-bg-dark);
    border-radius: var(--radius-sm);
    background: var(--color-bg);
    color: var(--color-text);
    min-height: 50px;
}

.share-buttons {
    display: flex;
    gap: var(--spacing-sm);
    justify-content: center;
    margin: var(--spacing-md) 0;
    flex-wrap: wrap;
}

.btn-share {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-xs);
    padding: var(--spacing-sm) var(--spacing-md);
    border-radius: var(--radius-md);
    font-size: var(--font-size-base);
    font-weight: 600;
    text-decoration: none;
    min-height: 50px;
    min-width: 140px;
    transition: all 0.2s ease;
}

.btn-whatsapp {
    background: #25D366;
    color: white;
}

.btn-whatsapp:hover {
    background: #1da851;
}

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

.btn-sms:hover {
    background: #2980b9;
}

.privacy-note {
    margin-top: var(--spacing-md);
    color: var(--color-text-muted);
    font-size: var(--font-size-sm);
}

/* ============================================
   Map Page Styles
   ============================================ */
.map-page {
    display: flex;
    flex-direction: column;
    height: 100vh;
    height: 100dvh;
}

#map {
    flex: 1;
    width: 100%;
    z-index: 1;
}

/* Info bar */
.info-bar {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: var(--spacing-sm) var(--spacing-md);
    background: var(--color-surface);
    border-top: 1px solid var(--color-bg-dark);
    z-index: 10;
}

.legend {
    display: flex;
    gap: var(--spacing-md);
}

.legend-item {
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
    font-size: var(--font-size-base);
    font-weight: 500;
}

.distance-info {
    font-size: var(--font-size-lg);
    font-weight: 700;
    color: var(--color-primary);
}

/* Bottom bar */
.bottom-bar {
    display: flex;
    gap: var(--spacing-sm);
    padding: var(--spacing-md);
    background: var(--color-surface);
    border-top: 1px solid var(--color-bg-dark);
    justify-content: center;
    z-index: 10;
}

/* Waiting banner */
.waiting-banner {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-sm);
    padding: var(--spacing-sm) var(--spacing-md);
    background: var(--color-info);
    color: white;
    font-size: var(--font-size-base);
    z-index: 10;
}

/* ============================================
   Overlay (Permission Request)
   ============================================ */
.overlay {
    position: fixed;
    inset: 0;
    background: rgba(0, 0, 0, 0.7);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 1000;
    padding: var(--spacing-lg);
}

.overlay-content {
    background: var(--color-surface);
    border-radius: var(--radius-lg);
    padding: var(--spacing-xl);
    text-align: center;
    max-width: 400px;
    width: 100%;
    box-shadow: var(--shadow-lg);
}

.permission-icon {
    font-size: 4rem;
    margin-bottom: var(--spacing-md);
}

.overlay-content h2 {
    font-size: var(--font-size-xl);
    color: var(--color-text);
    margin-bottom: var(--spacing-sm);
}

.overlay-content p {
    color: var(--color-text-light);
    margin-bottom: var(--spacing-lg);
    line-height: 1.5;
}

.overlay-content .btn-primary {
    width: 100%;
    margin-bottom: var(--spacing-sm);
}

/* ============================================
   Custom Map Markers
   ============================================ */
.custom-marker {
    background: none;
    border: none;
}

.marker-pin {
    font-size: 2rem;
    text-align: center;
    filter: drop-shadow(0 2px 4px rgba(0,0,0,0.3));
}

.marker-pin.host {
    color: var(--color-host);
}

.marker-pin.visitor {
    color: var(--color-visitor);
}

/* ============================================
   Status Messages
   ============================================ */
.status-message {
    position: fixed;
    top: var(--spacing-md);
    left: 50%;
    transform: translateX(-50%);
    padding: var(--spacing-sm) var(--spacing-lg);
    border-radius: var(--radius-md);
    font-size: var(--font-size-base);
    font-weight: 500;
    z-index: 2000;
    box-shadow: var(--shadow-md);
    animation: slideDown 0.3s ease;
}

@keyframes slideDown {
    from {
        opacity: 0;
        transform: translateX(-50%) translateY(-20px);
    }
    to {
        opacity: 1;
        transform: translateX(-50%) translateY(0);
    }
}

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

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

.status-message.error {
    background: var(--color-danger);
    color: white;
}

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

/* ============================================
   Expired Page
   ============================================ */
.expired-page {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    min-height: 100vh;
    min-height: 100dvh;
    padding: var(--spacing-xl);
    text-align: center;
    background: var(--color-bg);
}

.expired-icon {
    font-size: 5rem;
    margin-bottom: var(--spacing-md);
}

.expired-page h1 {
    font-size: var(--font-size-2xl);
    color: var(--color-text);
    margin-bottom: var(--spacing-sm);
}

.expired-page p {
    color: var(--color-text-light);
    margin-bottom: var(--spacing-lg);
    max-width: 300px;
}

/* ============================================
   Action Options (Home Page)
   ============================================ */
.action-options {
    text-align: center;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: var(--spacing-sm);
}

.divider {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
    width: 100%;
    max-width: 280px;
    margin: var(--spacing-xs) 0;
    color: var(--color-text-muted);
    font-size: var(--font-size-sm);
}

.divider::before,
.divider::after {
    content: '';
    flex: 1;
    height: 1px;
    background: var(--color-text-muted);
    opacity: 0.3;
}

.btn-large-outline {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-sm);
    background: var(--color-surface);
    color: var(--color-primary);
    border: 3px solid var(--color-primary);
    border-radius: var(--radius-lg);
    padding: var(--spacing-md) var(--spacing-xl);
    font-size: var(--font-size-lg);
    font-weight: 600;
    cursor: pointer;
    text-decoration: none;
    box-shadow: var(--shadow-sm);
    transition: all 0.2s ease;
    min-height: 70px;
    min-width: 280px;
}

.btn-large-outline:hover {
    background: var(--color-primary);
    color: white;
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

.btn-large-outline:active {
    transform: translateY(0);
}

/* ============================================
   Map Selection Page
   ============================================ */
.map-selection-page {
    position: fixed;
    inset: 0;
    display: flex;
    flex-direction: column;
    background: var(--color-bg);
    z-index: 100;
}

.selection-map {
    flex: 1;
    width: 100%;
    z-index: 1;
}

.location-info-bar {
    position: absolute;
    top: var(--spacing-md);
    left: var(--spacing-md);
    right: var(--spacing-md);
    background: var(--color-surface);
    border-radius: var(--radius-md);
    padding: var(--spacing-sm) var(--spacing-md);
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: var(--spacing-sm);
    box-shadow: var(--shadow-lg);
    z-index: 1000;
}

.location-text {
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
    font-size: var(--font-size-sm);
    color: var(--color-text);
    font-weight: 500;
    overflow: hidden;
}

.location-icon {
    font-size: 1.2rem;
    flex-shrink: 0;
}

#locationCoords {
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.btn-icon-only {
    width: 44px;
    height: 44px;
    border: none;
    background: var(--color-primary);
    color: white;
    border-radius: var(--radius-full);
    font-size: 1.3rem;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
    transition: all 0.2s ease;
}

.btn-icon-only:hover {
    background: var(--color-primary-dark);
    transform: scale(1.05);
}

.btn-icon-only.spinning {
    animation: spin 1s linear infinite;
}

.map-hint {
    position: absolute;
    bottom: 100px;
    left: 50%;
    transform: translateX(-50%);
    background: rgba(0, 0, 0, 0.75);
    color: white;
    padding: var(--spacing-xs) var(--spacing-md);
    border-radius: var(--radius-lg);
    font-size: var(--font-size-sm);
    z-index: 1000;
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
    white-space: nowrap;
}

.map-action-bar {
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    background: var(--color-surface);
    padding: var(--spacing-md);
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: var(--spacing-md);
    box-shadow: 0 -4px 20px rgba(0, 0, 0, 0.1);
    z-index: 1000;
}

.btn-text-back {
    background: none;
    border: none;
    color: var(--color-text-light);
    font-size: var(--font-size-base);
    font-weight: 500;
    cursor: pointer;
    padding: var(--spacing-sm);
    transition: color 0.2s ease;
}

.btn-text-back:hover {
    color: var(--color-text);
}

.btn-confirm {
    flex: 1;
    max-width: 280px;
    min-height: 56px;
    font-size: var(--font-size-lg);
}

/* Selection marker styles */
.selection-marker-icon {
    background: none !important;
    border: none !important;
}

.marker-pin.selection {
    font-size: 2.5rem;
    text-align: center;
    filter: drop-shadow(0 4px 8px rgba(0, 0, 0, 0.3));
    animation: gentle-drop 0.3s ease-out;
}

.marker-pulse {
    position: absolute;
    bottom: 0;
    left: 50%;
    transform: translateX(-50%);
    width: 20px;
    height: 8px;
    background: rgba(0, 0, 0, 0.2);
    border-radius: 50%;
    animation: pulse-shadow 1.5s ease-in-out infinite;
}

@keyframes gentle-drop {
    0% {
        transform: translateY(-20px);
        opacity: 0;
    }
    100% {
        transform: translateY(0);
        opacity: 1;
    }
}

@keyframes pulse-shadow {
    0%, 100% {
        transform: translateX(-50%) scale(1);
        opacity: 0.3;
    }
    50% {
        transform: translateX(-50%) scale(1.5);
        opacity: 0.1;
    }
}

.marker-bounce {
    animation: marker-bounce 0.3s ease;
}

@keyframes marker-bounce {
    0%, 100% {
        transform: translateY(0);
    }
    50% {
        transform: translateY(-15px);
    }
}

/* ============================================
   Leaflet Overrides
   ============================================ */
.leaflet-control-attribution {
    font-size: 10px;
}

.leaflet-popup-content-wrapper {
    border-radius: var(--radius-md);
}

.leaflet-popup-content {
    margin: var(--spacing-sm);
    font-family: var(--font-family);
}

/* ============================================
   Responsive Adjustments
   ============================================ */
@media (min-width: 768px) {
    .home-page {
        padding: var(--spacing-xl);
    }
    
    .hero h1 {
        font-size: var(--font-size-3xl);
    }
    
    .main-icon {
        font-size: 5rem;
    }
    
    .state-container {
        padding: var(--spacing-xl);
    }
    
    .bottom-bar {
        justify-content: flex-end;
        padding: var(--spacing-md) var(--spacing-lg);
    }
    
    .map-selection-page {
        position: fixed;
    }
    
    .location-info-bar {
        left: var(--spacing-lg);
        right: auto;
        max-width: 400px;
    }
    
    .map-action-bar {
        justify-content: center;
        gap: var(--spacing-lg);
    }
    
    .btn-confirm {
        max-width: 320px;
    }
    
    .map-hint {
        bottom: 120px;
    }
}

/* High contrast mode for accessibility */
@media (prefers-contrast: high) {
    :root {
        --color-primary: #0d5c3f;
        --color-text: #000000;
        --color-bg: #ffffff;
    }
    
    .btn-primary {
        border: 3px solid #000;
    }
}

/* Reduced motion */
@media (prefers-reduced-motion: reduce) {
    *, *::before, *::after {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }
}