:root {
    --bg: radial-gradient(1000px 600px at 15% -10%, rgba(59, 130, 246, 0.18), transparent 60%),
        radial-gradient(900px 500px at 90% 0%, rgba(16, 185, 129, 0.18), transparent 65%),
        linear-gradient(180deg, #f8fafc 0%, #eef2ff 55%, #fef9c3 100%);
    --surface: rgba(255, 255, 255, 0.92);
    --surface-strong: rgba(255, 255, 255, 0.98);
    --surface-soft: rgba(255, 255, 255, 0.72);
    --text: #0f172a;
    --muted: #475569;
    --accent: #2563eb;
    --accent-strong: #60a5fa;
    --accent-alt: #10b981;
    --border: rgba(148, 163, 184, 0.35);
    --entry-bar-height: 240px;
}

* {
    box-sizing: border-box;
}

body.timeline-body {
    margin: 0;
    min-height: 100vh;
    font-family: 'Sora', 'Space Grotesk', system-ui, -apple-system, sans-serif;
    background: var(--bg);
    color: var(--text);
}

.timeline-app {
    min-height: 100vh;
    display: flex;
    flex-direction: column;
}

.timeline-top {
    position: sticky;
    top: 0;
    z-index: 20;
    background: linear-gradient(180deg, rgba(255, 255, 255, 0.96) 0%, rgba(255, 255, 255, 0.85) 100%);
    backdrop-filter: blur(14px);
    border-bottom: 1px solid var(--border);
    padding: 24px clamp(20px, 4vw, 48px);
}

.timeline-top__inner {
    display: flex;
    flex-wrap: wrap;
    gap: 16px 24px;
    align-items: center;
    justify-content: space-between;
}

.timeline-title {
    margin: 0;
    font-size: clamp(28px, 3.6vw, 40px);
    font-weight: 600;
    letter-spacing: -0.02em;
}

.timeline-subtitle {
    margin: 6px 0 0;
    color: var(--muted);
    font-size: 0.98rem;
}

.timeline-top__actions {
    display: flex;
    align-items: center;
    gap: 12px;
}

.tl-btn {
    border: 1px solid var(--border);
    background: var(--surface-soft);
    color: var(--text);
    padding: 10px 14px;
    border-radius: 10px;
    font-weight: 600;
    cursor: pointer;
    transition: transform 120ms ease, box-shadow 120ms ease, border-color 120ms ease;
}

.tl-btn:hover {
    transform: translateY(-1px);
    border-color: rgba(37, 99, 235, 0.45);
    box-shadow: 0 10px 20px rgba(15, 23, 42, 0.12);
}

.tl-btn--primary {
    background: linear-gradient(135deg, var(--accent), var(--accent-strong));
    border-color: transparent;
    color: #ffffff;
}

.tl-btn--ghost {
    background: transparent;
}

.admin-toggle {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 0.9rem;
    color: var(--muted);
}

.admin-toggle input {
    accent-color: var(--accent-alt);
}

.hidden {
    display: none !important;
}

.timeline-index {
    padding: 32px clamp(20px, 4vw, 48px) 80px;
    flex: 1;
}

.timeline-index__grid {
    display: grid;
    gap: 18px;
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
    margin-top: 24px;
}

.timeline-card {
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: 16px;
    padding: 18px;
    display: flex;
    flex-direction: column;
    gap: 8px;
    box-shadow: 0 12px 24px rgba(15, 23, 42, 0.12);
}

.timeline-card__title {
    font-size: 1.1rem;
    font-weight: 600;
    margin: 0;
}

.timeline-card__meta {
    color: var(--muted);
    font-size: 0.85rem;
}

.timeline-card__actions {
    margin-top: auto;
    display: flex;
    gap: 10px;
    flex-wrap: wrap;
}

.timeline-create {
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: 16px;
    padding: 18px;
    display: grid;
    gap: 12px;
    max-width: 480px;
}

.timeline-create input {
    width: 100%;
}

.timeline-editor {
    flex: 1;
    padding: 28px clamp(20px, 4vw, 48px);
    padding-bottom: calc(var(--entry-bar-height) + 40px);
}

.timeline-header-row {
    display: flex;
    flex-wrap: wrap;
    align-items: baseline;
    gap: 8px 16px;
    margin-bottom: 16px;
}

.timeline-header-row h2 {
    margin: 0;
    font-size: 1.6rem;
}

.timeline-header-row span {
    color: var(--muted);
}

.cd-timeline__img {
    background: var(--accent);
    box-shadow: 0 0 0 5px rgba(255, 255, 255, 0.9);
}

.cd-timeline__content {
    background: var(--surface);
    border-radius: 16px;
    box-shadow: 0 12px 28px rgba(15, 23, 42, 0.14);
    border: 1px solid var(--border);
}

.cd-timeline__content h2 {
    color: var(--text);
}

.cd-timeline__date {
    color: #2563eb;
    font-weight: 600;
}

.timeline-entry-actions {
    display: flex;
    gap: 8px;
}

.timeline-entry-actions .tl-btn {
    padding: 6px 10px;
    font-size: 0.85rem;
}

.timeline-media {
    display: grid;
    gap: 8px;
    grid-template-columns: repeat(auto-fit, minmax(120px, 1fr));
    margin-top: 12px;
}

.timeline-media img {
    width: 100%;
    border-radius: 10px;
    border: 1px solid var(--border);
    object-fit: cover;
    max-height: 160px;
}

.timeline-entry-bar {
    position: fixed;
    left: 0;
    right: 0;
    bottom: 0;
    background: var(--surface-strong);
    border-top: 1px solid var(--border);
    padding: 16px clamp(20px, 4vw, 48px);
    backdrop-filter: blur(12px);
    z-index: 30;
}

.timeline-entry-bar form {
    display: grid;
    gap: 12px;
    grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
    align-items: end;
}

.timeline-entry-bar label {
    display: grid;
    gap: 6px;
    font-size: 0.85rem;
    color: var(--muted);
}

.timeline-entry-bar input,
.timeline-entry-bar textarea,
.timeline-entry-bar select {
    background: rgba(255, 255, 255, 0.9);
    border: 1px solid rgba(148, 163, 184, 0.55);
    color: var(--text);
    border-radius: 10px;
    padding: 10px 12px;
    font-family: inherit;
}

.timeline-entry-bar textarea {
    min-height: 80px;
    resize: vertical;
}

.timeline-entry-bar .form-actions {
    display: flex;
    gap: 10px;
    flex-wrap: wrap;
}

.admin-only {
    display: none;
}

body[data-admin="true"] .admin-only {
    display: inline-flex;
}

@media (max-width: 720px) {
    :root {
        --entry-bar-height: 320px;
    }

    .timeline-entry-bar form {
        grid-template-columns: 1fr;
    }
}