/**
 * ═══════════════════════════════════════════════════════════
 * Zaman Çizelgesi (Timeline) — Premium++++ Enterprise Styles
 * ═══════════════════════════════════════════════════════════
 * Varyantlar: vertical · horizontal · alternating (zigzag)
 * Builder ve ön yüz aynı markup + aynı CSS kullanır.
 *
 * CSS değişkenleri:
 *   --tl-line-width : çizgi kalınlığı (örn: 2px)
 *   --tl-line-color : çizgi rengi (boşsa tema secondary)
 *   --tl-line-style : solid | dashed | dotted
 *   --tl-radius     : kart köşe yarıçapı
 *   --tl-badge-color: öğe rozet rengi
 * ═══════════════════════════════════════════════════════════
 */

/* ─── Kapsayıcı ─── */
.pb-timeline {
    --tl-line-width: 2px;
    --tl-line-color: var(--color-secondary, #c9a227);
    --tl-line-style: solid;
    --tl-radius: 14px;
    --tl-badge-color: #c9a227;
    position: relative;
    display: flex;
    flex-direction: column;
}

.pb-timeline--gap-sm { gap: 1.5rem; }
.pb-timeline--gap-md { gap: 2.5rem; }
.pb-timeline--gap-lg { gap: 3.5rem; }
.pb-timeline--gap-xl { gap: 4.5rem; }

.pb-timeline--empty {
    padding: 2.5rem 1rem;
    text-align: center;
}
.pb-timeline-empty-msg {
    color: #94a3b8;
    font-size: 0.95rem;
}

/* ─── DİKEY (varsayılan) ─── */
.pb-timeline--vertical {
    padding-left: 1.75rem;
    margin-left: 0.5rem;
}
.pb-timeline--vertical::before {
    content: '';
    position: absolute;
    left: 0.5rem;
    top: 0;
    bottom: 0;
    width: var(--tl-line-width);
    background: var(--tl-line-color);
    opacity: 0.35;
    border-radius: 9999px;
}

.pb-timeline--vertical .pb-tl-item {
    position: relative;
    border-radius: var(--tl-radius);
    transition: box-shadow 0.25s ease, border-color 0.25s ease, transform 0.25s ease;
}
.pb-timeline--vertical .pb-tl-item:hover {
    transform: translateX(4px);
}

/* ─── YATAY ─── */
.pb-timeline--horizontal {
    flex-direction: row;
    gap: 1.75rem;
    overflow-x: auto;
    padding-bottom: 1rem;
    scroll-snap-type: x proximity;
}
.pb-timeline--horizontal .pb-tl-item {
    flex: 0 0 auto;
    min-width: 240px;
    max-width: 300px;
    scroll-snap-align: start;
}
.pb-timeline--horizontal.pb-tl-cols-2 .pb-tl-item { flex: 1 1 45%; min-width: 200px; max-width: none; }
.pb-timeline--horizontal.pb-tl-cols-3 .pb-tl-item { flex: 1 1 30%; min-width: 180px; max-width: none; }
.pb-timeline--horizontal.pb-tl-cols-4 .pb-tl-item { flex: 1 1 22%; min-width: 160px; max-width: none; }
.pb-timeline--horizontal.pb-tl-cols-5 .pb-tl-item { flex: 1 1 18%; min-width: 140px; max-width: none; }

/* ─── ALTERNATİF (zigzag) ─── */
.pb-timeline--alternating {
    padding-top: 1rem;
}
.pb-timeline--alternating::before {
    content: '';
    position: absolute;
    left: 50%;
    top: 0;
    bottom: 0;
    width: var(--tl-line-width);
    background: var(--tl-line-color);
    opacity: 0.35;
    transform: translateX(-50%);
    border-radius: 9999px;
}
.pb-tl-row {
    position: relative;
    display: flex;
    width: 100%;
    justify-content: flex-start;
}
.pb-tl-row--right {
    justify-content: flex-end;
}
.pb-tl-row .pb-tl-item {
    width: calc(50% - 2.5rem);
}
.pb-tl-marker {
    position: absolute;
    left: 50%;
    top: 2.25rem;
    width: 0.9rem;
    height: 0.9rem;
    border-radius: 9999px;
    background: var(--tl-line-color);
    border: 3px solid #fff;
    box-shadow: 0 0 0 2px var(--tl-line-color);
    transform: translateX(-50%);
    z-index: 2;
}

/* ─── Öğe parçaları ─── */
.pb-tl-head {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    margin-bottom: 0.5rem;
}

.pb-tl-icon {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
    border-radius: 9999px;
}
.pb-tl-icon--sm { width: 2rem; height: 2rem; }
.pb-tl-icon--md { width: 2.75rem; height: 2.75rem; }
.pb-tl-icon--lg { width: 3.5rem; height: 3.5rem; }
.pb-tl-icon--solid { background: var(--tl-line-color); color: #fff; }
.pb-tl-icon--outline { background: transparent; color: var(--tl-line-color); box-shadow: inset 0 0 0 2px var(--tl-line-color); }
.pb-tl-icon--soft { background: color-mix(in srgb, var(--tl-line-color) 12%, transparent); color: var(--tl-line-color); }

.pb-tl-number {
    font-family: ui-monospace, SFMono-Regular, Menlo, monospace;
    font-size: 0.8rem;
    font-weight: 700;
    color: var(--tl-line-color);
    letter-spacing: 0.05em;
    flex-shrink: 0;
}

.pb-tl-badge {
    display: inline-flex;
    align-items: center;
    padding: 0.2rem 0.75rem;
    border-radius: 9999px;
    font-size: 0.72rem;
    font-weight: 600;
    background: color-mix(in srgb, var(--tl-badge-color) 14%, transparent);
    color: var(--tl-badge-color);
    line-height: 1.5;
}

.pb-tl-date {
    font-size: 0.8rem;
    font-weight: 700;
    letter-spacing: 0.08em;
    text-transform: uppercase;
    color: var(--tl-line-color);
    margin-bottom: 0.35rem;
}

.pb-tl-title {
    font-size: 1.15rem;
    font-weight: 700;
    line-height: 1.4;
    margin-bottom: 0.4rem;
}

.pb-tl-desc {
    font-size: 0.92rem;
    line-height: 1.65;
    opacity: 0.8;
}

.pb-tl-image {
    margin-top: 0.75rem;
    border-radius: calc(var(--tl-radius) * 0.6);
    overflow: hidden;
}
.pb-tl-image img {
    display: block;
    width: 100%;
    height: auto;
    object-fit: cover;
}

.pb-tl-link {
    display: inline-flex;
    align-items: center;
    gap: 0.35rem;
    margin-top: 0.75rem;
    font-size: 0.85rem;
    font-weight: 600;
    color: var(--tl-line-color);
    text-decoration: none;
    transition: opacity 0.2s ease;
}
.pb-tl-link:hover { opacity: 0.75; }

.pb-tl-item.is-done .pb-tl-number::after {
    content: ' ✓';
    color: #22c55e;
}

/* ─── Responsive ─── */
@media (max-width: 767px) {
    .pb-timeline--alternating::before {
        left: 0.5rem;
        transform: none;
    }
    .pb-timeline--alternating .pb-tl-row,
    .pb-timeline--alternating .pb-tl-row--right {
        justify-content: flex-start;
        padding-left: 2.25rem;
    }
    .pb-timeline--alternating .pb-tl-row .pb-tl-item {
        width: 100%;
    }
    .pb-timeline--alternating .pb-tl-marker {
        left: 0.5rem;
        transform: none;
    }
    .pb-timeline--horizontal {
        flex-direction: column;
        overflow-x: visible;
        padding-bottom: 0;
    }
    .pb-timeline--horizontal .pb-tl-item {
        min-width: 0;
        max-width: none;
        flex: 1 1 100%;
    }
}