* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    height: -webkit-fill-available;
}

:root {
    --modal-start-height: 35vh;
    --button-hover: rgba(255, 255, 255, 0.05);
    --button-active: rgba(255, 255, 255, 0.1);
}

body {
    font-family: 'Inter', sans-serif;
    overflow: hidden;
    background-color: #1a1a1a;
    min-height: 100dvh;
    min-height: -webkit-fill-available;
}

#map-loader {
    position: absolute;
    inset: 0;
    z-index: 1500;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 14px;
    background-color: #1a1a1a;
    pointer-events: none;
    transition: opacity 500ms ease;
}

#map-loader.hidden {
    opacity: 0;
}

#map-loader.gone {
    display: none;
}

.map-loader-icon {
    width: 80px;
    height: 80px;
    animation: loader-pulse 1.4s ease-in-out infinite;
}

.map-loader-version {
    position: absolute;
    bottom: 20px;
    font-size: 0.75rem;
    color: #555;
    letter-spacing: 0.5px;
}

.map-loader-stage {
    position: absolute;
    bottom: 40px;
    font-size: 0.8rem;
    color: #777;
    letter-spacing: 0.2px;
    max-width: 90%;
    text-align: center;
}

@keyframes loader-pulse {
    0%, 100% { opacity: 0.35; transform: scale(0.95); }
    50%       { opacity: 1;    transform: scale(1.05); }
}

/* ── PWA Install Banner ───────────────────────────────────────────────────── */

.pwa-install-banner {
    position: fixed;
    bottom: 16px;
    left: 50%;
    transform: translateX(-50%) translateY(calc(100% + 24px));
    z-index: 2000;
    display: flex;
    align-items: flex-start;
    gap: 12px;
    width: calc(100% - 32px);
    max-width: 480px;
    padding: 12px 12px 12px 14px;
    border-radius: 16px;
    border: 1px solid var(--bs-border-color);
    background-color: var(--bs-body-bg);
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.45);
    transition: transform 0.35s cubic-bezier(0.34, 1.56, 0.64, 1), opacity 0.35s ease;
    opacity: 0;
}

.pwa-install-banner.visible {
    transform: translateX(-50%) translateY(0);
    opacity: 1;
}

.pwa-install-banner.hiding {
    transform: translateX(-50%) translateY(calc(100% + 24px));
    opacity: 0;
}

.pwa-install-icon {
    width: 40px;
    height: 40px;
    border-radius: 10px;
    flex-shrink: 0;
}

.pwa-install-text {
    display: flex;
    flex-direction: column;
    gap: 2px;
    flex: 1;
}

.pwa-install-title {
    font-size: 14px;
    font-weight: 600;
    color: var(--bs-body-color);
}

.pwa-install-sub {
    font-size: 12px;
    color: var(--bs-secondary-color);
    line-height: 1.4;
}

.pwa-install-actions {
    display: flex;
    align-items: center;
    gap: 6px;
    flex-shrink: 0;
}

.pwa-install-btn {
    padding: 6px 14px;
    border: none;
    border-radius: 20px;
    background-color: #3b82f6;
    color: #fff;
    font-size: 13px;
    font-weight: 600;
    cursor: pointer;
    transition: background-color 0.15s;
    white-space: nowrap;
}

.pwa-install-btn:hover {
    background-color: #2563eb;
}

.pwa-install-btn:active {
    background-color: #1d4ed8;
}

.pwa-dismiss-btn {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 30px;
    height: 30px;
    padding: 0;
    border: none;
    border-radius: 50%;
    background: transparent;
    color: var(--bs-secondary-color);
    cursor: pointer;
    transition: background-color 0.15s;
}

.pwa-dismiss-btn:hover {
    background-color: var(--button-hover);
}

.pwa-dismiss-btn .material-icons {
    font-size: 18px;
    pointer-events: none;
}

/* iOS-specific sub-label shows share icon hint */
.pwa-install-banner.ios .pwa-install-btn {
    display: none;
}