/* CSS Custom Properties (Variables) */
:root {
    --primary-gradient: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    --primary-gradient-hover: linear-gradient(135deg, #5a67d8 0%, #6b46c1 100%);
    --card-background: rgba(255, 255, 255, 0.95);
    --card-border: rgba(255, 255, 255, 0.18);
    --card-shadow: 0 8px 32px rgba(31, 38, 135, 0.37);
    --text-primary: #2c3e50;
    --text-secondary: #7f8c8d;
    --success-color: #28a745;
    --danger-color: #dc3545;
    --warning-color: #ffc107;
    --info-color: #17a2b8;
    --border-radius: 8px;
    --border-radius-lg: 15px;
    --font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, sans-serif;
}

/* Common styles shared across all pages */

body {
    font-family: var(--font-family);
    background: var(--primary-gradient);
    min-height: 100vh;
}

/* Navigation styles */
.navbar {
    background: var(--primary-gradient);
    padding: 0.5rem 0;
}

.navbar-brand {
    color: white !important;
    font-weight: normal !important;
    font-size: 1.1rem;
}

.navbar-toggler {
    border: 1px solid rgba(255, 255, 255, 0.3);
    padding: 0.25rem 0.5rem;
}

.navbar-toggler:focus {
    box-shadow: 0 0 0 0.2rem rgba(255, 255, 255, 0.25);
}

.navbar-toggler-icon {
    background-image: url("data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 30 30'%3e%3cpath stroke='rgba%28255, 255, 255, 0.8%29' stroke-linecap='round' stroke-miterlimit='10' stroke-width='2' d='M4 7h22M4 15h22M4 23h22'/%3e%3c/svg%3e");
}

.navbar-collapse {
    justify-content: flex-end;
}

.navbar-nav {
    align-items: center;
}

.navbar-nav .nav-link {
    color: white !important;
    border: 1px solid rgba(255, 255, 255, 0.3);
    border-radius: var(--border-radius);
    padding: 0.375rem 0.75rem;
    margin: 0.25rem;
    text-decoration: none;
    transition: all 0.3s ease;
}

.navbar-nav .nav-link:hover,
.navbar-nav .nav-link.active {
    background-color: rgba(255, 255, 255, 0.2);
    border-color: rgba(255, 255, 255, 0.5);
}

/* Navbar logo responsive styling */
.navbar-logo {
    height: 40px;
    width: auto;
    max-width: 200px;
    transition: all 0.3s ease;
}

/* Responsive logo adjustments */
@media (max-width: 576px) {
    .navbar-logo {
        height: 35px;
        max-width: 150px;
    }
}

@media (min-width: 992px) {
    .navbar-logo {
        height: 45px;
        max-width: 250px;
    }
}

@media (max-width: 768px) {
    .navbar-brand {
        /* Center logo on mobile */
        margin: 0 auto;
    }
}

/* Common button styles */
.btn-custom {
    background: var(--primary-gradient);
    border: none;
    color: white;
    border-radius: var(--border-radius);
    padding: 0.5rem 1rem;
    transition: all 0.3s ease;
}

.btn-custom:hover {
    background: var(--primary-gradient-hover);
    color: white;
    transform: translateY(-1px);
}

/* Common card styles */
.card {
    background: var(--card-background);
    border-radius: var(--border-radius-lg);
    box-shadow: var(--card-shadow);
    backdrop-filter: blur(8px);
    border: 1px solid var(--card-border);
}

.card h3 {
    margin-top: 0;
    color: var(--text-primary);
    display: flex;
    align-items: center;
    gap: 8px;
}

/* Loading animations */
.loading {
    text-align: center;
    padding: 2rem;
}

.spinner {
    border: 4px solid #f3f3f3;
    border-top: 4px solid #3498db;
    border-radius: 50%;
    width: 40px;
    height: 40px;
    animation: spin 2s linear infinite;
    margin: 0 auto;
}

@keyframes spin {
    0% { transform: rotate(0deg); }
    100% { transform: rotate(360deg); }
}

/* Map common styles */
.map-layer-control {
    position: absolute;
    top: 10px;
    right: 10px;
    z-index: 1000;
    background: white;
    border-radius: 8px;
    box-shadow: 0 2px 4px rgba(0,0,0,0.2);
    padding: 8px;
}

.map-layer-control select {
    border: 1px solid #ddd;
    border-radius: 4px;
    padding: 4px 8px;
    font-size: 12px;
    background: white;
}

.map-layer-control label {
    font-size: 12px;
    font-weight: bold;
    margin-right: 5px;
    color: #333;
}

/* Color legend */
.color-legend {
    background: rgba(255, 255, 255, 0.9);
    border-radius: 8px;
    padding: 10px;
    font-size: 12px;
    box-shadow: 0 2px 4px rgba(0,0,0,0.2);
}

.legend-item {
    display: flex;
    align-items: center;
    margin-bottom: 4px;
}

.legend-color {
    width: 16px;
    height: 16px;
    border-radius: 50%;
    border: 1px solid black;
    margin-right: 8px;
}

/* Popup styling */
.sheep-popup .leaflet-popup-content {
    margin: 8px 12px;
}

.geofence-popup .leaflet-popup-content {
    font-weight: bold;
    text-align: center;
}

/* Name label styling */
.sheep-name-label {
    font-family: Arial, sans-serif;
    font-size: 12px;
    font-weight: bold;
    color: black;
    text-shadow: 1px 1px 1px white, -1px -1px 1px white, 1px -1px 1px white, -1px 1px 1px white;
    pointer-events: none;
    white-space: nowrap;
    text-align: center;
}

.name-label-icon {
    text-align: center !important;
}

/* Utility classes */
.text-primary { color: var(--text-primary) !important; }
.text-secondary { color: var(--text-secondary) !important; }
.text-success { color: var(--success-color) !important; }
.text-danger { color: var(--danger-color) !important; }
.text-warning { color: var(--warning-color) !important; }
.text-info { color: var(--info-color) !important; }

.bg-success { background-color: var(--success-color) !important; }
.bg-danger { background-color: var(--danger-color) !important; }
.bg-warning { background-color: var(--warning-color) !important; }
.bg-info { background-color: var(--info-color) !important; }

.border-radius { border-radius: var(--border-radius) !important; }
.border-radius-lg { border-radius: var(--border-radius-lg) !important; }

/* Form enhancements */
.form-control:focus {
    border-color: #667eea;
    box-shadow: 0 0 0 0.2rem rgba(102, 126, 234, 0.25);
}

.btn:focus {
    box-shadow: 0 0 0 0.2rem rgba(102, 126, 234, 0.25);
}

/* Alert enhancements */
.alert {
    border: none;
    border-radius: var(--border-radius);
    box-shadow: 0 4px 8px rgba(0, 0, 0, 0.2);
    max-width: 350px;
    font-weight: 500;
    padding: 12px 18px;
}

.alert-success {
    background-color: rgba(40, 167, 69, 0.9);
    color: white;
    border-left: 4px solid var(--success-color);
}

.alert-danger {
    background-color: rgba(220, 53, 69, 0.9);
    color: white;
    border-left: 4px solid var(--danger-color);
}

.alert-warning {
    background-color: rgba(255, 193, 7, 0.9);
    color: #333; /* Dark text for warning because background is light */
    border-left: 4px solid var(--warning-color);
}

.alert-info {
    background-color: rgba(23, 162, 184, 0.9);
    color: white;
    border-left: 4px solid var(--info-color);
}

/* Alert container positioning */
#alert-container {
    z-index: 1040; /* Below modals (1050) but above most content */
    width: auto;
    max-width: 100%;
}

#alert-container .alert {
    margin-bottom: 10px;
    backdrop-filter: blur(5px);
    -webkit-backdrop-filter: blur(5px);
}

/* Make sure close buttons are visible against various backgrounds */
.alert .btn-close {
    opacity: 0.8;
    filter: none;
}

.alert-danger .btn-close,
.alert-success .btn-close,
.alert-info .btn-close {
    filter: invert(1) grayscale(100%) brightness(200%); /* White close icon for dark backgrounds */
}

/* Animation utilities */
.fade-in {
    animation: fadeIn 0.3s ease-in;
}

.slide-up {
    animation: slideUp 0.3s ease-out;
}

@keyframes fadeIn {
    from { opacity: 0; }
    to { opacity: 1; }
}

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

/* Responsive utilities */
@media (max-width: 768px) {
    .container {
        padding-left: 10px;
        padding-right: 10px;
    }
    
    .card {
        margin-bottom: 1rem;
    }
    
    .btn-custom {
        width: 100%;
        margin-bottom: 0.5rem;
    }
    
    /* Mobile navigation adjustments */
    .navbar-collapse {
        margin-top: 1rem;
        padding-top: 1rem;
        border-top: 1px solid rgba(255, 255, 255, 0.2);
    }
    
    .navbar-nav {
        width: 100%;
    }
    
    .navbar-nav .nav-link,
    .navbar-nav .btn {
        width: 100%;
        text-align: left;
        margin: 0.25rem 0;
        display: block;
    }
    
    /* Mobile button adjustments */
    .btn-outline-light {
        width: 100%;
        margin-bottom: 0.5rem;
        text-align: left;
        padding: 0.5rem 1rem;
    }
    
    .btn-outline-light:last-child {
        margin-bottom: 0;
    }
}

@media (max-width: 576px) {
    /* Extra small screens */
    .container {
        padding-left: 5px;
        padding-right: 5px;
    }
    
    .mt-4 {
        margin-top: 1rem !important;
    }
    
    .card-header {
        padding: 0.75rem;
    }
    
    .card-body {
        padding: 0.75rem;
    }
    
    /* Text adjustments for small screens */
    h5 {
        font-size: 1rem;
    }
    
    .btn {
        font-size: 0.9rem;
    }
}

/* Touch and mobile-specific improvements */
@media (hover: none) and (pointer: coarse) {
    /* Touch devices - improve tap targets */
    .btn, .nav-link {
        min-height: 44px;
        line-height: 1.2;
    }
    
    /* Prevent iOS zoom on form inputs */
    input, select, textarea {
        font-size: 16px;
    }
    
    /* Remove hover effects on touch devices */
    .btn:hover, .nav-link:hover {
        transform: none;
    }
}

/* Prevent horizontal scrolling on small screens */
@media (max-width: 576px) {
    body {
        overflow-x: hidden;
    }
    
    .container-fluid, .container {
        padding-left: 0.5rem;
        padding-right: 0.5rem;
    }
}

/* High DPI display adjustments */
@media (-webkit-min-device-pixel-ratio: 2), (min-resolution: 192dpi) {
    .status-indicator {
        border: 0.5px solid rgba(255, 255, 255, 0.3);
    }
}

@media (min-width: 769px) {
    /* Desktop and tablet landscape - reset mobile styles */
    .navbar-nav .nav-link,
    .navbar-nav .btn {
        width: auto;
        display: inline-block;
        text-align: center;
    }
    
    .btn-outline-light {
        width: auto;
        margin-bottom: 0;
        display: inline-block;
    }
}