:root {
    --tm-timeline-surface: rgba(255, 255, 255, 0.92);
    --tm-timeline-muted-surface: rgba(248, 249, 250, 0.9);
    --tm-timeline-border: rgba(33, 37, 41, 0.1);
    --tm-timeline-accent: #0d6efd;
    --tm-timeline-accent-soft: rgba(13, 110, 253, 0.12);
    --tm-timeline-date-surface: rgba(255, 255, 255, 0.97);
    --tm-timeline-date-border: rgba(13, 110, 253, 0.35);
    --tm-timeline-date-color: rgba(33, 37, 41, 0.92);
}

html[data-bs-theme="dark"] {
    --tm-timeline-surface: rgba(33, 37, 41, 0.92);
    --tm-timeline-muted-surface: rgba(43, 48, 53, 0.92);
    --tm-timeline-border: rgba(248, 249, 250, 0.12);
    --tm-timeline-accent: #7cb8ff;
    --tm-timeline-accent-soft: rgba(124, 184, 255, 0.14);
    --tm-timeline-date-surface: rgba(33, 37, 41, 0.97);
    --tm-timeline-date-border: rgba(124, 184, 255, 0.4);
    --tm-timeline-date-color: rgba(248, 249, 250, 0.94);
}

body {
    background-image:
        radial-gradient(circle at top left, rgba(13, 110, 253, 0.08), transparent 32%),
        radial-gradient(circle at top right, rgba(25, 135, 84, 0.08), transparent 28%);
}

.tm-timeline-panel {
    background: var(--tm-timeline-surface);
    border: 1px solid var(--tm-timeline-border);
    border-radius: 0;
    box-shadow: 0 1rem 3rem rgba(33, 37, 41, 0.08);
    padding: 1.5rem;
    backdrop-filter: blur(8px);
}

.tm-timeline-hero {
    padding: 0;
    overflow: hidden;
}

.tm-timeline-hero-inner {
    padding: 2rem;
    background:
        linear-gradient(135deg, var(--tm-timeline-accent-soft), transparent 55%),
        var(--tm-timeline-surface);
}

.tm-timeline-card {
    display: grid;
    grid-template-columns: 5.25rem minmax(0, 1fr);
    gap: 1rem;
    align-items: start;
}

.tm-timeline-rail {
    --tm-timeline-rail-top: 0.4rem;
    --tm-timeline-rail-bottom: 0;
    position: relative;
    display: flex;
    justify-content: center;
    align-items: flex-start;
    min-height: 100%;
}

.tm-timeline-rail-with-date {
    --tm-timeline-rail-top: 3.1rem;
}

.tm-timeline-rail-line {
    position: absolute;
    top: var(--tm-timeline-rail-top);
    bottom: var(--tm-timeline-rail-bottom);
    left: 50%;
    width: 2px;
    transform: translateX(-50%);
}

.tm-timeline-list > .tm-timeline-card:not(:last-child) .tm-timeline-rail {
    --tm-timeline-rail-bottom: -1.5rem;
}

.tm-timeline-list > .tm-timeline-card + .tm-timeline-card .tm-timeline-rail:not(.tm-timeline-rail-with-date) {
    --tm-timeline-rail-top: -1.5rem;
}

.tm-timeline-date-day {
    position: relative;
    z-index: 1;
    display: inline-flex;
    flex-direction: column;
    align-items: center;
    min-width: 4.35rem;
    justify-content: center;
    border-radius: 0;
    background: var(--tm-timeline-date-surface);
    border: 1px solid var(--tm-timeline-date-border);
    color: var(--tm-timeline-date-color);
    box-shadow: 0 0.35rem 1rem rgba(0, 0, 0, 0.12);
    backdrop-filter: blur(8px);
    font-size: 0.75rem;
    line-height: 1.35;
    letter-spacing: 0.04em;
    text-align: center;
}

.tm-timeline-date-primary {
    font-weight: 700;
    white-space: nowrap;
}

.tm-timeline-date-year {
    font-size: 0.72rem;
    font-weight: 500;
    letter-spacing: 0.02em;
}

.tm-timeline-main {
    min-width: 0;
}

.tm-timeline-meta {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem 1rem;
    color: var(--bs-secondary-color);
    font-size: 0.92rem;
    margin-bottom: 0.75rem;
}

.tm-timeline-entry .tm-timeline-meta {
    font-size: 0.84rem;
    margin-bottom: 0.5rem;
}

.tm-timeline-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 0.35rem 0.75rem;
    margin-top: 0.15rem;
    margin-bottom: 0;
}

.tm-timeline-tag {
    color: var(--bs-secondary-color);
    font-size: 0.82rem;
    text-decoration: none;
    text-transform: lowercase;
}

.tm-timeline-tag:hover,
.tm-timeline-tag:focus {
    color: var(--tm-timeline-accent);
}

.tm-timeline-content {
    line-height: 1.7;
}

.tm-timeline-content pre {
    padding: 1rem;
    border-radius: 0;
}

.tm-timeline-featured-image img {
    display: block;
    width: 100%;
    height: auto;
    border: 1px solid var(--tm-timeline-border);
}

.tm-timeline-entry-main {
    min-width: 0;
}

.tm-timeline-entry-header > :first-child {
    margin-top: 0;
}

.tm-timeline-entry-header > :last-child {
    margin-bottom: 0;
}

.tm-timeline-entry-header h1 {
    font-size: calc(1.375rem + 1.5vw);
    line-height: 1.1;
}

@media (min-width: 1200px) {
    .tm-timeline-entry-header h1 {
        font-size: 2.5rem;
    }
}

.tm-timeline-section {
    padding-top: 1rem;
    border-top: 1px solid var(--tm-timeline-border);
}

.tm-timeline-subpage {
    border: 1px solid var(--tm-timeline-border);
    border-radius: 0;
    background: var(--tm-timeline-muted-surface);
    color: inherit;
}

.tm-timeline-subpage:hover,
.tm-timeline-subpage:focus {
    border-color: var(--tm-timeline-accent);
    transform: translateY(-1px);
}

.tm-timeline-404-code {
    display: inline-flex;
    padding: 0.25rem 0.6rem;
    border-radius: 999px;
    background: var(--tm-timeline-accent-soft);
    color: var(--tm-timeline-accent);
}

@media (max-width: 991.98px) {
    .tm-timeline-panel {
        padding: 1.25rem;
    }

    .tm-timeline-card {
        grid-template-columns: 1fr;
    }

    .tm-timeline-rail {
        justify-content: flex-start;
        min-height: auto;
    }

    .tm-timeline-rail-line {
        display: none;
    }
}