/* --- Custom Properties for Theme --- */
:root {
    --bs-body-bg: #12121F;
    --bs-body-color: #E0E0E0;
    --bs-border-color-translucent: rgba(255, 255, 255, 0.15);

    --accent-color: #00CFE8;
    --accent-color-rgb: 0, 207, 232;
    --secondary-accent-color: #7F5AF0; /* Purple for some elements */
    --secondary-accent-color-rgb: 127, 90, 240;
    --danger-color: #FF4757;
    
    --glass-bg: rgba(30, 30, 47, 0.6);
    --glass-bg-light-tint: rgba(45, 45, 65, 0.7);
    --glass-border: rgba(255, 255, 255, 0.1);
    --glass-blur: 12px;
    --card-shadow: 0 8px 32px 0 rgba(0, 0, 0, 0.37);
    --border-radius-lg: 1rem; /* 16px */
    --border-radius-md: 0.75rem; /* 12px */
    --border-radius-sm: 0.5rem; /* 8px */

    --font-family-sans-serif: 'Poppins', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;

    --app-header-height: 60px; /* Default, JS can update */
    --bottom-nav-height: 70px; /* Default, JS can update */
}

body {
    font-family: var(--font-family-sans-serif);
    background-color: var(--bs-body-bg);
    color: var(--bs-body-color);
    overscroll-behavior-y: contain;
    margin: 0;
}

.btn-primary {
    --bs-btn-bg: var(--accent-color);
    --bs-btn-border-color: var(--accent-color);
    --bs-btn-hover-bg: #00b8d4;
    --bs-btn-hover-border-color: #00b8d4;
    --bs-btn-active-bg: #00a3b8;
    --bs-btn-active-border-color: #00a3b8;
    --bs-btn-disabled-bg: var(--accent-color);
    --bs-btn-disabled-border-color: var(--accent-color);
    font-weight: 500;
}
.text-primary { color: var(--accent-color) !important; }
.bg-primary { background-color: var(--accent-color) !important; }
.border-primary { border-color: var(--accent-color) !important; }

.btn-danger {
    --bs-btn-bg: var(--danger-color);
    --bs-btn-border-color: var(--danger-color);
    --bs-btn-hover-bg: #e03c4b;
    --bs-btn-hover-border-color: #e03c4b;
}
.text-danger { color: var(--danger-color) !important; }

#app-container {
    display: flex;
    flex-direction: column;
    height: 100vh;
    max-width: 480px;
    margin: 0 auto;
    background-color: var(--bs-body-bg);
    overflow: hidden;
    box-shadow: 0 0 20px rgba(0,0,0,0.5);
}

.app-header {
    background: rgba(18, 18, 31, 0.8);
    backdrop-filter: blur(var(--glass-blur));
    -webkit-backdrop-filter: blur(var(--glass-blur));
    border-bottom: 1px solid var(--glass-border);
    color: var(--bs-body-color);
    padding: 0.75rem 1rem !important;
    z-index: 1050;
    flex-shrink: 0;
}
.app-logo-icon { color: var(--accent-color); }
#app-header #filter-icon {
    color: var(--accent-color);
    padding: 0.3rem;
    cursor: pointer;
}
#app-header #filter-icon:hover {
    background-color: rgba(var(--accent-color-rgb), 0.1);
    border-radius: var(--border-radius-sm);
}

.main-content {
    flex-grow: 1;
    overflow-y: auto;
    padding: 1rem;
}
.main-content::-webkit-scrollbar { width: 6px; }
.main-content::-webkit-scrollbar-thumb {
    background-color: rgba(var(--accent-color-rgb), 0.5);
    border-radius: 3px;
}
.main-content::-webkit-scrollbar-track { background: transparent; }

.bottom-nav {
    display: flex;
    justify-content: space-around;
    align-items: center;
    background: rgba(18, 18, 31, 0.8);
    backdrop-filter: blur(var(--glass-blur));
    -webkit-backdrop-filter: blur(var(--glass-blur));
    border-top: 1px solid var(--glass-border);
    padding: 0.5rem 0;
    flex-shrink: 0;
    position: sticky;
    bottom: 0;
    z-index: 1000;
}
.nav-item {
    display: flex;
    flex-direction: column;
    align-items: center;
    text-decoration: none;
    color: var(--bs-text-emphasis-color);
    font-size: 0.7rem;
    padding: 0.25rem 0.5rem;
    transition: color 0.2s ease-in-out, transform 0.2s ease;
    border-radius: var(--border-radius-md);
}
.nav-item i { font-size: 1.4rem; margin-bottom: 2px; }
.nav-item.active {
    color: var(--accent-color);
    transform: translateY(-2px);
}
.nav-item.active span { font-weight: 600; }
.nav-item:not(.active):hover {
    color: var(--accent-color);
    background-color: rgba(var(--accent-color-rgb), 0.1);
}

.page { display: none; animation: fadeIn 0.3s ease-out; }
.page.active { display: block; }
@keyframes fadeIn {
    from { opacity: 0; transform: translateY(10px); }
    to { opacity: 1; transform: translateY(0); }
}

/* --- Map Placeholder Enhancements --- */
#map-placeholder {
    width: 100%;
    height: 300px; /* Increased height for more map area */
    background-color: #2c3e50; /* Dark blue-gray (sea/base) */
    background-image:
        linear-gradient(45deg, rgba(76, 175, 80, 0.08) 25%, transparent 25%, transparent 50%, rgba(76, 175, 80, 0.08) 50%, rgba(76, 175, 80, 0.08) 75%, transparent 75%, transparent),
        linear-gradient(-45deg, rgba(76, 175, 80, 0.08) 25%, transparent 25%, transparent 50%, rgba(76, 175, 80, 0.08) 50%, rgba(76, 175, 80, 0.08) 75%, transparent 75%, transparent);
    background-size: 50px 50px;
    position: relative;
    border-radius: var(--border-radius-lg);
    margin-bottom: 1rem;
    overflow: hidden;
    border: 2px solid rgba(var(--accent-color-rgb), 0.2);
    box-shadow: inset 0 0 10px rgba(0,0,0,0.2);
}
#map-elements-container {
    position: absolute;
    top: 0; left: 0; width: 100%; height: 100%;
    pointer-events: none;
}
.map-stop-marker {
    position: absolute;
    width: 10px;
    height: 10px;
    background-color: rgba(255, 255, 255, 0.7);
    border-radius: 50%;
    border: 1.5px solid var(--accent-color);
    transform: translate(-50%, -50%);
    box-shadow: 0 0 6px rgba(var(--accent-color-rgb), 0.5);
    z-index: 5;
}
.map-stop-marker .stop-label {
    position: absolute;
    bottom: 100%;
    left: 50%;
    transform: translateX(-50%) translateY(-4px);
    background-color: rgba(0,0,0,0.75);
    color: #fff;
    padding: 2px 5px;
    border-radius: var(--border-radius-sm);
    font-size: 0.6rem;
    white-space: nowrap;
    opacity: 0;
    transition: opacity 0.2s;
    pointer-events: none;
}
.map-stop-marker:hover .stop-label { opacity: 1; }

.route-segment-line {
    position: absolute;
    background-color: rgba(var(--accent-color-rgb), 0.4);
    height: 2px;
    transform-origin: 0 0;
    pointer-events: none;
    z-index: 1;
    opacity: 0.7;
}

.bus-icon-map {
    position: absolute;
    background-color: var(--accent-color); /* Fallback */
    color: white;
    padding: 5px;
    border-radius: 50%;
    font-size: 1rem;
    width: 30px;
    height: 30px;
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: 0 2px 6px rgba(0,0,0,0.3);
    cursor: pointer;
    z-index: 10;
    transition: left 0.5s linear, top 0.5s linear, transform 0.3s ease, background-color 0.3s ease;
}
.bus-icon-map:hover { transform: scale(1.1) translate(-45%, -45%); /* Keep centered on hover scale */ }
.bus-icon-map.ksrtc { background-color: var(--danger-color); }
.bus-icon-map.private { background-color: var(--secondary-accent-color); }

.user-location-marker {
    position: absolute;
    width: 16px;
    height: 16px;
    background-color: var(--secondary-accent-color);
    border-radius: 50%;
    border: 2.5px solid white;
    transform: translate(-50%, -50%);
    box-shadow: 0 0 10px rgba(var(--secondary-accent-color-rgb), 0.7);
    z-index: 15;
}
.user-location-marker::after {
    content: ''; position: absolute; top: 50%; left: 50%;
    width: 100%; height: 100%; border-radius: 50%;
    background-color: var(--secondary-accent-color);
    transform: translate(-50%, -50%); opacity: 0.6;
    animation: pulse 1.5s infinite ease-out;
    z-index: -1;
}
@keyframes pulse {
    0% { transform: translate(-50%, -50%) scale(0.8); opacity: 0.6; }
    70% { transform: translate(-50%, -50%) scale(1.6); opacity: 0; }
    100% { transform: translate(-50%, -50%) scale(0.8); opacity: 0; }
}

.bus-card {
    background: var(--glass-bg);
    backdrop-filter: blur(var(--glass-blur));
    -webkit-backdrop-filter: blur(var(--glass-blur));
    border: 1px solid var(--glass-border);
    border-radius: var(--border-radius-lg);
    padding: 1rem;
    margin-bottom: 1rem;
    box-shadow: var(--card-shadow);
    transition: transform 0.2s ease-in-out, box-shadow 0.2s ease-in-out;
}
.bus-card:hover {
    transform: translateY(-3px);
    box-shadow: 0 12px 35px rgba(0,0,0,0.45);
}
.bus-card h5 {
    margin-top: 0; margin-bottom: 0.25rem;
    color: var(--bs-body-color); font-weight: 600;
}
.bus-card h5 small.text-muted { font-size: 0.75em; color: var(--bs-secondary-color) !important; }
.bus-card p { margin-bottom: 0.3rem; font-size: 0.875rem; color: var(--bs-secondary-color); }
.bus-card .badge { font-size: 0.75em; padding: 0.3em 0.6em; border-radius: var(--border-radius-sm); }
.bus-card .badge.bg-secondary { background-color: var(--bs-gray-600) !important; color: var(--bs-light) !important; }
.bus-card hr { border-top: 1px solid var(--glass-border); margin: 0.75rem 0; }
.bus-card .view-details-btn { font-size: 0.8rem; padding: 0.3rem 0.8rem; }
.bus-card .progress { height: 8px !important; border-radius: var(--border-radius-sm); background-color: rgba(255,255,255,0.1); }
.bus-card .progress-bar { background-color: var(--accent-color); }

.modal-content {
    background: var(--glass-bg-light-tint);
    backdrop-filter: blur(var(--glass-blur));
    -webkit-backdrop-filter: blur(var(--glass-blur));
    border: 1px solid var(--glass-border);
    border-radius: var(--border-radius-lg);
    box-shadow: var(--card-shadow);
}
.modal-header { border-bottom: 1px solid var(--glass-border); padding: 1rem 1.25rem; }
.modal-header .modal-title { font-weight: 600; }
.modal-body { padding: 1.25rem; }
.modal-footer { border-top: 1px solid var(--glass-border); padding: 0.75rem 1.25rem; }
.modal-footer .btn { min-width: 100px; }
.modal-footer .btn-lg { min-width: 150px; }

.form-control, .form-select {
    background-color: rgba(255, 255, 255, 0.05);
    border: 1px solid var(--glass-border);
    color: var(--bs-body-color);
    border-radius: var(--border-radius-md);
    padding: 0.6rem 0.9rem;
}
.form-control:focus, .form-select:focus {
    background-color: rgba(255, 255, 255, 0.1);
    border-color: var(--accent-color);
    box-shadow: 0 0 0 0.2rem rgba(var(--accent-color-rgb), 0.25);
    color: var(--bs-body-color);
}
.form-check-input { background-color: rgba(255, 255, 255, 0.1); border: 1px solid var(--glass-border); }
.form-check-input:checked { background-color: var(--accent-color); border-color: var(--accent-color); }
.form-check-input:focus { box-shadow: 0 0 0 0.2rem rgba(var(--accent-color-rgb), 0.25); }
.form-check-label { font-size: 0.9rem; }

.seat-map-container {
    display: grid; grid-template-columns: repeat(5, 1fr);
    gap: 0.5rem; padding: 1rem;
    background-color: rgba(0,0,0, 0.2);
    border-radius: var(--border-radius-md);
    max-width: 320px; margin: 0 auto;
}
.seat {
    min-width: 38px; min-height: 38px;
    border: 1px solid rgba(255,255,255,0.2);
    border-radius: var(--border-radius-sm);
    display: flex; justify-content: center; align-items: center;
    cursor: pointer; font-size: 0.75em; font-weight: 500;
    transition: background-color 0.2s, transform 0.1s;
}
.seat.available { background-color: rgba(255,255,255,0.1); color: var(--bs-body-color); }
.seat.available:hover { background-color: rgba(255,255,255,0.2); transform: scale(1.05); }
.seat.aisle { background-color: transparent; border: none; cursor: default; }
.seat.booked { background-color: var(--bs-secondary-bg-subtle); color: var(--bs-secondary-color); cursor: not-allowed; opacity: 0.7; }
.seat.selected {
    background-color: var(--accent-color); color: #111;
    border-color: var(--accent-color); transform: scale(1.1);
    box-shadow: 0 0 10px rgba(var(--accent-color-rgb), 0.5);
}
.seat-legend .seat-icon { width: 14px; height: 14px; border-radius: 3px; margin-right: 6px; vertical-align: middle;}
.seat-legend .seat-available { background-color: rgba(255,255,255,0.1); border: 1px solid rgba(255,255,255,0.2); }
.seat-legend .seat-booked { background-color: var(--bs-secondary-bg-subtle); }
.seat-legend .seat-selected { background-color: var(--accent-color); }

.qr-code-bg { background-color: #ffffff; display: inline-block; }
#qrCodeImage { border: none; }

.profile-header img {
    width: 90px; height: 90px; border-radius: 50%;
    margin-bottom: 0.75rem; border: 3px solid var(--accent-color);
    padding: 3px; background-color: var(--bs-body-bg);
}
.profile-header h4 { font-weight: 600; }
.list-group-item {
    background-color: transparent; border-color: var(--glass-border);
    padding: 0.9rem 1.1rem; transition: background-color 0.2s ease;
}
.list-group-item:hover, .list-group-item:focus {
    background-color: rgba(var(--accent-color-rgb), 0.1);
    color: var(--accent-color);
}
.list-group-item.text-danger:hover {
    background-color: rgba(255, 71, 87, 0.1);
    color: var(--danger-color) !important;
}

.app-alert {
    position: fixed;
    top: calc(var(--app-header-height) + 15px);
    left: 50%; transform: translateX(-50%);
    z-index: 1055; min-width: 300px; max-width: 90%;
    border-radius: var(--border-radius-md);
    box-shadow: 0 4px 15px rgba(0,0,0,0.3);
    backdrop-filter: blur(5px);
    -webkit-backdrop-filter: blur(5px);
}
.alert-success { background-color: rgba(25, 135, 84, 0.85); color: #fff; border: 1px solid rgba(25, 135, 84, 0.9); }
.alert-danger { background-color: rgba(var(--bs-danger-rgb), 0.85); color: #fff; border: 1px solid rgba(var(--bs-danger-rgb), 0.9); }
.alert-warning { background-color: rgba(var(--bs-warning-rgb), 0.85); color: #000; border: 1px solid rgba(var(--bs-warning-rgb), 0.9); }
.alert-info { background-color: rgba(var(--accent-color-rgb), 0.85); color: #fff; border: 1px solid rgba(var(--accent-color-rgb), 0.9); }


.panic-fab {
    position: fixed;
    bottom: calc(var(--bottom-nav-height) + 20px);
    right: 20px; z-index: 1010;
    background-color: var(--danger-color);
    border: none; width: 60px; height: 60px;
}
.panic-fab:hover { background-color: #e03c4b; }
.panic-fab i { font-size: 1.6rem; }

#desktop-notice { background-color: var(--bs-body-bg); color: var(--bs-body-color); }
#desktop-notice h1 { color: var(--accent-color); font-weight: 600; }

.route-stop-list .list-group-item {
    display: flex; justify-content: space-between; align-items: center;
    background-color: rgba(255,255,255,0.03);
}
.amenity-icon { font-size: 1.1rem; margin-right: 5px; color: var(--accent-color); }

#bus-details-page .badge.bg-secondary,
#search-results-container .badge.bg-secondary {
    background-color: var(--bs-gray-700) !important;
    color: var(--bs-light) !important;
}
#bus-details-page .card {
    background: var(--glass-bg);
    backdrop-filter: blur(var(--glass-blur));
    -webkit-backdrop-filter: blur(var(--glass-blur));
    border: 1px solid var(--glass-border);
    border-radius: var(--border-radius-lg);
    box-shadow: var(--card-shadow);
}
#bus-details-page .progress-bar.bg-success { background-color: var(--accent-color) !important; }
#bus-details-page .progress-bar.bg-danger { background-color: var(--bs-warning) !important; }

.text-small-muted { font-size: 0.8em; color: var(--bs-secondary-color); }