/* ==========================================================================
   Timeline Map — Frontend Styles
   ========================================================================== */

/* --------------------------------------------------------------------------
   Wrapper — tall page-level scroll space; min-height set by JS
   -------------------------------------------------------------------------- */
.tlm-wrapper {
    position: relative;
    width: 100%;
    --tlm-slide-count: 1;
    --tlm-slide-height: 100vh;
    min-height: calc(var(--tlm-slide-count) * var(--tlm-slide-height));
}

/* --------------------------------------------------------------------------
   Snap container — full-height passthrough; scroll is at the page level
   -------------------------------------------------------------------------- */
.tlm-snap-container {
    position: relative;
    width: 100%;
    height: calc(var(--tlm-slide-count) * var(--tlm-slide-height));
}

/* --------------------------------------------------------------------------
   Sticky full-viewport map — sticks to top of the viewport while scrolling
   -------------------------------------------------------------------------- */
.tlm-map-sticky {
    position: sticky;
    top: 0;
    height: var(--tlm-slide-height, 100vh);
    width: 100%;
}

.tlm-map {
    width: 100%;
    height: 100%;
}

/* --------------------------------------------------------------------------
   Scroll track — overlays the sticky map via absolute positioning
   -------------------------------------------------------------------------- */
.tlm-scroll-track {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    z-index: 10;
    pointer-events: none;
}

/* --------------------------------------------------------------------------
   Event sections — each fills the viewport; JS snaps to nearest on scroll end
   -------------------------------------------------------------------------- */
.tlm-event {
    height: var(--tlm-slide-height, 100vh);
    box-sizing: border-box;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: flex-start;
    padding: 2rem;
    pointer-events: none;
}

/* --------------------------------------------------------------------------
   Event cards — glass-morphism panels
   -------------------------------------------------------------------------- */
.tlm-event-card {
    width: 380px;
    box-sizing: border-box;
    max-width: min(90vw, 380px);
    max-height: calc(var(--tlm-slide-height, 100vh) - 4rem);
    overflow: hidden;
    background: rgba(10, 12, 22, 0.76);
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
    border: 1px solid rgba(255, 255, 255, 0.13);
    border-radius: 16px;
    padding: 1.5rem;
    color: #f0f4ff;
    pointer-events: all;
    /* Enter animation — toggled by .tlm-event--active */
    opacity: 0;
    transform: translateX(-28px);
    transition: opacity 0.45s ease, transform 0.45s ease, box-shadow 0.45s ease;
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.3);
}

.tlm-event--active .tlm-event-card {
    opacity: 1;
    transform: translateX(0);
    box-shadow: 0 12px 48px rgba(0, 0, 0, 0.45);
}

/* Card meta row */
.tlm-event-meta {
    display: flex;
    align-items: center;
    gap: 0.6rem;
    margin-bottom: 0.75rem;
    flex-wrap: wrap;
}

.tlm-event-date {
    font-size: 0.78rem;
    font-weight: 600;
    letter-spacing: 0.06em;
    text-transform: uppercase;
    color: rgba(255, 255, 255, 0.65);
}

.tlm-event-badge {
    display: inline-block;
    padding: 0.2rem 0.65rem;
    border-radius: 999px;
    font-size: 0.7rem;
    font-weight: 700;
    letter-spacing: 0.05em;
    text-transform: uppercase;
    background-color: var(--badge-color, #3b82f6);
    color: #fff;
    line-height: 1.4;
}

/* Event image */
.tlm-event-image {
    width: 100%;
    height: 160px;
    object-fit: cover;
    border-radius: 10px;
    margin-bottom: 1rem;
    display: block;
}

/* Event title */
.tlm-event-title {
    margin: 0 0 0.5rem;
    font-size: 1.15rem;
    font-weight: 700;
    line-height: 1.35;
    color: #ffffff;
}

/* Event summary */
.tlm-event-summary {
    margin: 0 0 0.75rem;
    font-size: 0.875rem;
    line-height: 1.6;
    color: rgba(240, 244, 255, 0.78);
    overflow: hidden;
    display: -webkit-box;
    -webkit-line-clamp: 5;
    -webkit-box-orient: vertical;
}

/* Read more link */
.tlm-event-readmore {
    display: block;
    margin-top: 0.25rem;
    font-size: 0.8rem;
    font-weight: 700;
    letter-spacing: 0.05em;
    color: rgba(255, 255, 255, 0.55);
    text-transform: uppercase;
    transition: color 0.2s ease;
}

.tlm-event-link:hover .tlm-event-readmore {
    color: #ffffff;
}

/* Link wrapper around the card */
.tlm-event-link {
    display: block;
    color: inherit;
    text-decoration: none;
    pointer-events: all;
}

.tlm-event-link:hover .tlm-event-card {
    border-color: rgba(255, 255, 255, 0.28);
}

/* --------------------------------------------------------------------------
   Overview slide — first snap target, shows clustered world map
   -------------------------------------------------------------------------- */
.tlm-event--overview {
    align-items: center;
    justify-content: center;
    padding-bottom: 3rem;
}

.tlm-overview-card {
    width: auto;
    max-width: min(90vw, 420px);
    pointer-events: none;
    opacity: 0;
    transform: translateY(12px);
    transition: opacity 0.5s ease, transform 0.5s ease;
}

.tlm-event--overview.tlm-event--active .tlm-overview-card {
    opacity: 1;
    transform: translateY(0);
}

.tlm-overview-meta {
    margin: 0 0 0.5rem;
    font-size: 0.85rem;
    font-weight: 600;
    letter-spacing: 0.06em;
    text-transform: uppercase;
    color: rgba(255, 255, 255, 0.7);
    text-shadow: 0 1px 8px rgba(0, 0, 0, 0.6);
}

.tlm-overview-hint {
    display: block;
    font-size: 1rem;
    font-weight: 700;
    color: rgba(255, 255, 255, 0.5);
    letter-spacing: 0.04em;
    text-shadow: 0 1px 8px rgba(0, 0, 0, 0.6);
    animation: tlm-hint-bob 2s ease-in-out infinite;
}

@keyframes tlm-hint-bob {
    0%, 100% { transform: translateY(0); }
    50%       { transform: translateY(5px); }
}

/* --------------------------------------------------------------------------
   Map-anchored overlays — year indicator + progress line
   -------------------------------------------------------------------------- */
.tlm-year-indicator {
    position: absolute;
    top: 1.5rem;
    left: 1.5rem;
    z-index: 200;
    font-size: 2rem;
    font-weight: 800;
    color: #ffffff;
    text-shadow: 0 2px 16px rgba(0, 0, 0, 0.65);
    letter-spacing: -0.03em;
    opacity: 1;
    transition: opacity 0.2s ease;
    pointer-events: none;
    font-variant-numeric: tabular-nums;
}

body.admin-bar .tlm-year-indicator {
    top: calc(32px + 1.5rem);
}

.tlm-progress-track {
    position: absolute;
    left: 1.5rem;
    top: 12vh;
    bottom: 12vh;
    width: 3px;
    background: rgba(255, 255, 255, 0.2);
    border-radius: 3px;
    z-index: 200;
    pointer-events: none;
}

body.admin-bar .tlm-progress-track {
    top: calc(32px + 12vh);
}

.tlm-progress-fill {
    width: 100%;
    height: 0%;
    background: #ffffff;
    border-radius: 3px;
    transition: height 0.12s linear;
}

/* --------------------------------------------------------------------------
   Pulse marker (MapLibre custom element)
   -------------------------------------------------------------------------- */
.tlm-pulse-marker {
    width: 18px;
    height: 18px;
    border-radius: 50%;
    background: #fff;
    border: 2px solid rgba(255, 255, 255, 0.6);
    box-shadow: 0 0 0 0 rgba(255, 255, 255, 0.7);
    animation: tlm-pulse 1.8s ease-out infinite;
    position: relative;
}

.tlm-pulse-marker::after {
    content: '';
    position: absolute;
    inset: -6px;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.35);
    animation: tlm-pulse-ring 1.8s ease-out infinite;
}

@keyframes tlm-pulse {
    0%   { box-shadow: 0 0 0 0 rgba(255, 255, 255, 0.7); }
    70%  { box-shadow: 0 0 0 12px rgba(255, 255, 255, 0); }
    100% { box-shadow: 0 0 0 0 rgba(255, 255, 255, 0); }
}

@keyframes tlm-pulse-ring {
    0%   { transform: scale(1); opacity: 0.6; }
    100% { transform: scale(2.4); opacity: 0; }
}

/* --------------------------------------------------------------------------
   Loading / empty / error states
   -------------------------------------------------------------------------- */
.tlm-loading,
.tlm-empty,
.tlm-error {
    height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    color: rgba(255, 255, 255, 0.9);
    font-size: 1rem;
    gap: 0.75rem;
    pointer-events: none;
    text-shadow: 0 1px 6px rgba(0, 0, 0, 0.6);
}

.tlm-error {
    color: #fca5a5;
}

.tlm-loading-spinner {
    display: inline-block;
    width: 20px;
    height: 20px;
    border: 2px solid rgba(255, 255, 255, 0.3);
    border-top-color: #fff;
    border-radius: 50%;
    animation: tlm-spin 0.8s linear infinite;
    flex-shrink: 0;
}

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

/* --------------------------------------------------------------------------
   MapLibre attribution overrides (keep it readable on dark map)
   -------------------------------------------------------------------------- */
.maplibregl-ctrl-attrib {
    background: rgba(0, 0, 0, 0.55) !important;
    color: rgba(255, 255, 255, 0.8) !important;
    border-radius: 4px;
}

.maplibregl-ctrl-attrib a {
    color: rgba(255, 255, 255, 0.8) !important;
}

/* --------------------------------------------------------------------------
   Mobile
   -------------------------------------------------------------------------- */
@media (max-width: 768px) {
    .tlm-wrapper {
        min-height: calc(var(--tlm-slide-count) * var(--tlm-slide-height));
    }

    .tlm-snap-container {
        height: calc(var(--tlm-slide-count) * var(--tlm-slide-height));
    }

    .tlm-map-sticky {
        height: var(--tlm-slide-height, 100vh);
        min-height: var(--tlm-slide-height, 100vh);
    }

    .tlm-event {
        height: var(--tlm-slide-height, 100vh);
    }

    .tlm-event {
        padding: 1rem;
        align-items: center;
        justify-content: center;
    }

    .tlm-event--overview {
        align-items: center;
        justify-content: center;
        padding-bottom: 2.5rem;
    }

    .tlm-event-card {
        width: 100%;
        max-height: calc(var(--tlm-slide-height, 100vh) - 3rem);
        overflow: hidden;
    }

    .tlm-event-image {
        height: 110px;
    }

    .tlm-year-indicator {
        font-size: 1.4rem;
        left: 0.75rem;
        top: 1rem;
    }

    body.admin-bar .tlm-year-indicator {
        top: calc(46px + 1rem);
    }

    .tlm-progress-track {
        left: 0.75rem;
    }
}