/* ===== Interactive Timeline plugin =====
   All selectors scoped under [data-cb-type="timeline"] so nothing leaks.
   (.timeline-vertical / .timeline-horizontal are classes ON the container.)
   Colors run through CSS variables so dark mode is a variable override. */
[data-cb-type="timeline"] {
    --timeline-accent: #3b82f6;
    --timeline-line-width: 2px;
    --timeline-dot-size: 12px;
    --timeline-line-color: #e5e7eb;
    --timeline-bg: #ffffff;
    --timeline-border: #e5e7eb;
    --timeline-text-primary: #111827;
    --timeline-text-secondary: #6b7280;
    --timeline-text-muted: #9ca3af;

    position: relative;
    padding: 40px 0;
    max-width: 1200px;
    margin: 0 auto;
}

/* ── Dark mode (opt-in — commented out) ───────────────────────────────────
   Dark mode for a rendered block is the SITE's responsibility, not the plugin's.
   Every color above is a CSS variable, so redefine the palette below under
   whatever trigger your site uses — a class, [data-theme="dark"],
   @media (prefers-color-scheme: dark), etc. Uncomment and point the selector at
   your site's theme system. The accent color stays as configured.
   NOTE: `.dark` is also the ContentBuilder editor's own UI theme, so on a page
   that runs the editor, prefer a different class here.

.dark [data-cb-type="timeline"] {
    --timeline-line-color: #374151;
    --timeline-bg: #1f2937;
    --timeline-border: #374151;
    --timeline-text-primary: #f9fafb;
    --timeline-text-secondary: #d1d5db;
    --timeline-text-muted: #9ca3af;
}
.dark [data-cb-type="timeline"] .timeline-content:hover {
    box-shadow: 0 4px 12px rgba(59, 130, 246, 0.2);
}
*/

/* Vertical Layout (Default) */
[data-cb-type="timeline"].timeline-vertical {
    display: flex;
    flex-direction: column;
    gap: 0;
}

[data-cb-type="timeline"].timeline-vertical::before {
    content: '';
    position: absolute;
    left: 20px;
    top: 0;
    bottom: 0;
    width: var(--timeline-line-width);
    background: var(--timeline-line-color);
    border-radius: var(--timeline-line-width);
}

/* Horizontal Layout */
[data-cb-type="timeline"].timeline-horizontal {
    position: relative;
    overflow-x: auto;
    display: flex;
}

[data-cb-type="timeline"].timeline-horizontal > div {
    position: relative;
    display: flex;
    gap: 48px;
}

[data-cb-type="timeline"].timeline-horizontal > div::before {
    content: '';
    position: absolute;
    left: 0;
    right: 0;
    top: 20px;
    height: var(--timeline-line-width);
    background: var(--timeline-line-color);
    border-radius: var(--timeline-line-width);
}

/* Timeline Item */
[data-cb-type="timeline"] .timeline-item {
    position: relative;
    display: flex;
    gap: 24px;
    padding: 0 0 48px 0;
}

/* Vertical Item Layout */
[data-cb-type="timeline"].timeline-vertical .timeline-item {
    flex-direction: row;
    align-items: flex-start;
    padding-left: 60px;
}

/* Horizontal Item Layout */
[data-cb-type="timeline"].timeline-horizontal .timeline-item {
    flex-direction: column;
    align-items: center;
    min-width: 280px;
    max-width: 320px;
    padding: 0;
    scroll-snap-align: start;
}

/* Timeline Marker (Dot) */
[data-cb-type="timeline"] .timeline-marker {
    position: absolute;
    width: var(--timeline-dot-size);
    height: var(--timeline-dot-size);
    border-radius: 50%;
    background: var(--timeline-bg);
    border: 3px solid var(--timeline-line-color);
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    z-index: 2;
}

[data-cb-type="timeline"].timeline-vertical .timeline-marker {
    left: calc(20px - var(--timeline-dot-size) / 2 + var(--timeline-line-width) / 2);
    top: 8px;
}

[data-cb-type="timeline"].timeline-horizontal .timeline-marker {
    left: 50%;
    transform: translateX(-50%);
    top: calc(20px - var(--timeline-dot-size) / 2 + var(--timeline-line-width) / 2);
}

/* Timeline Content */
[data-cb-type="timeline"] .timeline-content {
    flex: 1;
    background: var(--timeline-bg);
    border: 1px solid var(--timeline-border);
    border-radius: 12px;
    padding: 20px 24px;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    box-shadow: 0 1px 3px rgba(0, 0, 0, 0.04);
    box-sizing: border-box;
}

/* Rounded Corners off → square content cards */
[data-cb-type="timeline"][data-cb-rounded="false"] .timeline-content {
    border-radius: 0;
}

[data-cb-type="timeline"].timeline-horizontal .timeline-content {
    margin-top: 66px;
    width: 100%;
}

/* Hover Effect (data-cb-hover). Default "lift" is a pure raise — no forced border
   color, so it respects the chosen Border Color; "lift-shadow" adds a soft shadow;
   "none" disables the hover. */
[data-cb-type="timeline"] .timeline-content:hover {
    transform: translateY(-2px);
}
[data-cb-type="timeline"][data-cb-hover="lift-shadow"] .timeline-content:hover {
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.06);
}
[data-cb-type="timeline"][data-cb-hover="none"] .timeline-content:hover {
    transform: none;
    box-shadow: 0 1px 3px rgba(0, 0, 0, 0.04);
}

/* Date Badge */
[data-cb-type="timeline"] .timeline-date {
    display: inline-block;
    font-size: 13px;
    font-weight: 500;
    color: var(--timeline-accent);
    background: color-mix(in srgb, var(--timeline-accent) 10%, transparent);
    padding: 4px 12px;
    border-radius: 6px;
    margin-bottom: 12px;
    letter-spacing: 0.3px;
}

/* Title */
[data-cb-type="timeline"] .timeline-title {
    margin: 0 0 8px;
    font-size: 18px !important;
    font-weight: 500 !important;
    color: var(--timeline-text-primary);
    line-height: 1.4;
}

/* Description */
[data-cb-type="timeline"] .timeline-desc {
    margin: 0;
    font-size: 14.5px;
    color: var(--timeline-text-secondary);
    line-height: 1.6;
}

/* Status Indicators */
[data-cb-type="timeline"] [data-status="completed"] .timeline-marker {
    background: var(--timeline-accent);
    border-color: var(--timeline-accent);
    box-shadow: 0 0 0 4px color-mix(in srgb, var(--timeline-accent) 20%, transparent);
}

[data-cb-type="timeline"] [data-status="completed"] .timeline-marker::after {
    content: '✓';
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    color: white;
    font-size: 10px;
    font-weight: 700;
}

[data-cb-type="timeline"] [data-status="current"] .timeline-marker {
    background: var(--timeline-accent);
    border-color: var(--timeline-accent);
    animation: timeline-pulse 2s cubic-bezier(0.4, 0, 0.6, 1) infinite;
}

[data-cb-type="timeline"] [data-status="current"] .timeline-content {
    border-color: var(--timeline-accent);
    box-shadow: 0 0 0 3px color-mix(in srgb, var(--timeline-accent) 15%, transparent);
}

[data-cb-type="timeline"] [data-status="upcoming"] .timeline-marker {
    background: var(--timeline-bg);
    border-color: var(--timeline-line-color);
}

/* Animation States */
[data-cb-type="timeline"] .timeline-animated {
    opacity: 0;
}

[data-cb-type="timeline"].timeline-vertical .timeline-animated {
    transform: translateX(-20px);
}

[data-cb-type="timeline"].timeline-horizontal .timeline-animated {
    transform: translateY(20px);
}

[data-cb-type="timeline"] .timeline-visible {
    opacity: 1 !important;
    transform: translate(0, 0) !important;
    transition: opacity 0.6s cubic-bezier(0.4, 0, 0.2, 1),
                transform 0.6s cubic-bezier(0.4, 0, 0.2, 1);
}

[data-cb-type="timeline"] .timeline-item:nth-child(1).timeline-visible { transition-delay: 0ms; }
[data-cb-type="timeline"] .timeline-item:nth-child(2).timeline-visible { transition-delay: 100ms; }
[data-cb-type="timeline"] .timeline-item:nth-child(3).timeline-visible { transition-delay: 200ms; }
[data-cb-type="timeline"] .timeline-item:nth-child(4).timeline-visible { transition-delay: 300ms; }
[data-cb-type="timeline"] .timeline-item:nth-child(5).timeline-visible { transition-delay: 400ms; }
[data-cb-type="timeline"] .timeline-item:nth-child(n+6).timeline-visible { transition-delay: 500ms; }

/* Pulse Animation */
@keyframes timeline-pulse {
    0%, 100% {
        box-shadow: 0 0 0 0 color-mix(in srgb, var(--timeline-accent) 70%, transparent);
    }
    50% {
        box-shadow: 0 0 0 8px color-mix(in srgb, var(--timeline-accent) 0%, transparent);
    }
}

/* Accessibility: Reduced Motion */
@media (prefers-reduced-motion: reduce) {
    [data-cb-type="timeline"] .timeline-animated {
        opacity: 1;
        transform: none;
    }

    [data-cb-type="timeline"] .timeline-marker,
    [data-cb-type="timeline"] .timeline-content,
    [data-cb-type="timeline"] .timeline-visible {
        transition: none;
        animation: none;
    }

    [data-cb-type="timeline"] [data-status="current"] .timeline-marker {
        animation: none;
    }
}

/* Responsive Design */
@media (max-width: 768px) {
    [data-cb-type="timeline"] {
        padding: 20px 0;
    }

    [data-cb-type="timeline"].timeline-horizontal {
        padding: 40px 10px 20px;
        gap: 24px;
    }

    [data-cb-type="timeline"].timeline-horizontal .timeline-item {
        min-width: 240px;
        max-width: 280px;
    }

    [data-cb-type="timeline"].timeline-vertical .timeline-item {
        padding-left: 50px;
        gap: 16px;
    }

    [data-cb-type="timeline"].timeline-vertical::before {
        left: 16px;
    }

    [data-cb-type="timeline"].timeline-vertical .timeline-marker {
        left: calc(16px - var(--timeline-dot-size) / 2 + var(--timeline-line-width) / 2);
    }

    [data-cb-type="timeline"] .timeline-content {
        padding: 16px 20px;
    }

    [data-cb-type="timeline"] .timeline-title {
        font-size: 16px;
    }

    [data-cb-type="timeline"] .timeline-desc {
        font-size: 14px;
    }
}

@media (max-width: 480px) {
    [data-cb-type="timeline"].timeline-horizontal .timeline-item {
        min-width: 220px;
        max-width: 260px;
    }

    [data-cb-type="timeline"] .timeline-content {
        padding: 14px 16px;
    }
}