/* ================================================================
   TIMELINE — "THE ROAD SO FAR"
   Brutalist dark theme, red-coral accents
   ================================================================ */

/* ---------- Section wrapper ---------- */
#timeline {
    position: relative;
}

/* ---------- Section heading ---------- */
.tl-heading {
    margin: 0 0 0.5rem;
    line-height: 0.92;
}
.tl-heading .th-road {
    font-family: var(--font-heading);
    font-size: clamp(48px, 6vw, 84px);
    color: #ffffff;
    letter-spacing: 2px;
}
.tl-heading .th-sofar {
    font-family: var(--font-heading);
    font-size: clamp(48px, 6vw, 84px);
    color: #e8473f;
    letter-spacing: 2px;
}
.tl-subtext {
    font-family: var(--font-body);
    font-size: 13px;
    color: var(--text-secondary);
    letter-spacing: 1.5px;
    margin-bottom: 4rem;
    font-style: italic;
}

/* ---------- Outer container ---------- */
.timeline-wrap {
    position: relative;
    max-width: 1000px;
    margin: 0 auto;
    padding: 2rem 0 4rem;
}

/* ---------- Center line ---------- */
.timeline-line {
    position: absolute;
    left: 50%;
    top: 0;
    transform: translateX(-50%);
    width: 3px;
    height: 0;            /* animated via JS */
    background: linear-gradient(to bottom, #e8473f, rgba(232,71,63,0.3));
    border-radius: 2px;
    transition: height 1.4s cubic-bezier(0.4, 0, 0.2, 1);
    z-index: 1;
}
.timeline-line.drawn {
    height: 100%;
}

/* ---------- Single timeline item ---------- */
.tl-item {
    display: flex;
    justify-content: flex-end;  /* default: card on LEFT */
    padding: 0 calc(50% + 40px) 0 0;
    margin-bottom: 3.5rem;
    position: relative;
    opacity: 0;
    transform: translateX(-40px);
    transition: opacity 0.6s ease, transform 0.6s ease;
}
.tl-item.active {
    opacity: 1;
    transform: translateX(0);
}

/* Every even item: card on RIGHT */
.tl-item:nth-child(even) {
    justify-content: flex-start;
    padding: 0 0 0 calc(50% + 40px);
    transform: translateX(40px);
}
.tl-item:nth-child(even).active {
    transform: translateX(0);
}

/* ---------- Connector dot on center line ---------- */
.tl-item::before {
    content: '';
    position: absolute;
    left: 50%;
    top: 22px;
    transform: translate(-50%, 0);
    width: 14px;
    height: 14px;
    border-radius: 50%;
    background: #e8473f;
    border: 3px solid var(--bg-color);
    box-shadow: 0 0 10px rgba(232,71,63,0.7);
    z-index: 3;
}

/* Pulsing green dot for current node */
.tl-item.current::before {
    background: #22c55e;
    box-shadow: 0 0 0 0 rgba(34,197,94,0.7);
    animation: pulse-green-dot 1.6s ease-in-out infinite;
}

@keyframes pulse-green-dot {
    0%   { box-shadow: 0 0 0 0 rgba(34,197,94,0.7); }
    70%  { box-shadow: 0 0 0 10px rgba(34,197,94,0); }
    100% { box-shadow: 0 0 0 0 rgba(34,197,94,0); }
}

/* ---------- Card ---------- */
.tl-card {
    background: var(--surface-color);
    border: 1px solid var(--border-color);
    border-left: 3px solid #e8473f;
    padding: 1.5rem 1.75rem;
    max-width: 420px;
    width: 100%;
    position: relative;
    transition:
        transform 0.28s ease,
        box-shadow 0.28s ease,
        background-color 0.28s ease;
}
.tl-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 8px 40px rgba(232,71,63,0.25);
    background-color: var(--surface-elevated);
}

/* Gold/amber accent variant */
.tl-card.accent-gold {
    border-left-color: #f59e0b;
}
.tl-card.accent-gold:hover {
    box-shadow: 0 8px 40px rgba(245,158,11,0.2);
}

/* ---------- Year label ---------- */
.tl-year {
    font-family: var(--font-heading);
    font-size: clamp(28px, 3.5vw, 40px);
    color: #e8473f;
    letter-spacing: 2px;
    line-height: 1;
    margin-bottom: 0.35rem;
}
.tl-card.accent-gold .tl-year { color: #f59e0b; }

/* ---------- Institution name ---------- */
.tl-school {
    font-family: var(--font-body);
    font-size: clamp(14px, 1.6vw, 17px);
    font-weight: 700;
    color: #ffffff;
    margin-bottom: 0.25rem;
}

/* ---------- Level / grade sub-label ---------- */
.tl-grade {
    font-family: var(--font-body);
    font-size: 12px;
    color: var(--text-secondary);
    letter-spacing: 1px;
    margin-bottom: 0.85rem;
}

/* ---------- Highlight badge row ---------- */
.tl-badges {
    display: flex;
    flex-wrap: wrap;
    gap: 0.4rem;
    margin-top: 0.6rem;
}
.tl-badge {
    font-family: 'Courier New', monospace;
    font-size: 9px;
    font-weight: 700;
    letter-spacing: 1.5px;
    text-transform: uppercase;
    padding: 4px 10px;
    border: 1.5px solid #e8473f;
    color: #e8473f;
    background: transparent;
}
.tl-badge.green {
    border-color: #22c55e;
    color: #22c55e;
}
.tl-badge.gold {
    border-color: #f59e0b;
    color: #f59e0b;
}

/* ---------- Conductor logo ---------- */
.tl-conductor {
    display: flex;
    align-items: center;
    gap: 0.55rem;
    margin-bottom: 0.65rem;
}
.tl-conductor-logo {
    width: 32px;
    height: 32px;
    border-radius: 50%;
    object-fit: cover;
    background: var(--surface-elevated);
    border: 2px solid var(--border-color);
    flex-shrink: 0;
}
.tl-conductor-name {
    font-family: var(--font-body);
    font-size: 11px;
    color: var(--text-secondary);
    letter-spacing: 1px;
}

/* ---------- Event type pill badge ---------- */
.tl-type-badge {
    display: inline-block;
    font-family: 'Courier New', monospace;
    font-size: 9px;
    font-weight: 700;
    letter-spacing: 1.5px;
    text-transform: uppercase;
    padding: 3px 9px;
    border: 1.5px solid var(--border-color);
    color: var(--text-secondary);
    margin-bottom: 0.5rem;
}

/* ---------- Special note ---------- */
.tl-note {
    font-family: var(--font-body);
    font-size: 11px;
    color: #f59e0b;
    letter-spacing: 0.8px;
    margin-top: 0.5rem;
    padding: 0.4rem 0.7rem;
    border-left: 2px solid #f59e0b;
    background: rgba(245,158,11,0.06);
}
.tl-note.coral {
    color: #e8473f;
    border-left-color: #e8473f;
    background: rgba(232,71,63,0.06);
}

/* ---------- "VIEW ALL ACHIEVEMENTS →" toggle ---------- */
.tl-achievements-toggle {
    display: flex;
    align-items: center;
    gap: 0.6rem;
    background: transparent;
    border: 1.5px solid #e8473f;
    color: #e8473f;
    font-family: 'Courier New', monospace;
    font-size: 10px;
    font-weight: 700;
    letter-spacing: 2px;
    text-transform: uppercase;
    padding: 8px 16px;
    cursor: pointer;
    margin-top: 1.2rem;
    transition:
        background 0.25s ease,
        color 0.25s ease,
        transform 0.2s ease;
}
.tl-achievements-toggle:hover {
    background: rgba(232,71,63,0.1);
    transform: translateX(3px);
}
.tl-achievements-toggle .toggle-arrow {
    transition: transform 0.35s ease;
    display: inline-block;
}
.tl-achievements-toggle.open .toggle-arrow {
    transform: rotate(90deg);
}

/* ---------- Sub-timeline (achievements) ---------- */
.tl-sub-wrap {
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.7s cubic-bezier(0.4, 0, 0.2, 1);
}
.tl-sub-wrap.open {
    max-height: 3000px;
}

.tl-sub-list {
    position: relative;
    margin: 1.5rem 0 0.5rem 20px;
    padding-left: 2rem;
    border-left: 2px solid var(--border-color);
}
.tl-sub-item {
    margin-bottom: 1.5rem;
    position: relative;
    opacity: 0;
    transform: translateY(10px);
    transition: opacity 0.4s ease, transform 0.4s ease;
}
.tl-sub-item.visible {
    opacity: 1;
    transform: translateY(0);
}
.tl-sub-item::before {
    content: '';
    position: absolute;
    left: -2.5rem;
    top: 14px;
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background: #e8473f;
    border: 2px solid var(--bg-color);
    box-shadow: 0 0 6px rgba(232,71,63,0.5);
}
.tl-sub-item.gold-item::before {
    background: #f59e0b;
    box-shadow: 0 0 6px rgba(245,158,11,0.5);
}

.tl-sub-card {
    background: #12121a;
    border: 1px solid var(--border-color);
    border-left: 2px solid #e8473f;
    padding: 1rem 1.25rem;
    transition: background 0.2s ease, box-shadow 0.2s ease;
}
.tl-sub-card:hover {
    background: var(--surface-color);
    box-shadow: 0 4px 20px rgba(232,71,63,0.12);
}
.tl-sub-card.gold-card {
    border-left-color: #f59e0b;
}
.tl-sub-card.gold-card:hover {
    box-shadow: 0 4px 20px rgba(245,158,11,0.12);
}

.tl-sub-date {
    font-family: var(--font-heading);
    font-size: 18px;
    color: #e8473f;
    letter-spacing: 1px;
    margin-bottom: 0.15rem;
}
.tl-sub-card.gold-card .tl-sub-date { color: #f59e0b; }

.tl-sub-title {
    font-family: var(--font-body);
    font-size: 13px;
    font-weight: 700;
    color: #ffffff;
    margin-bottom: 0.4rem;
}

/* ---------- Achievement counter strip ---------- */
.tl-counters {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 0;
    margin-top: 4rem;
    border: 1px solid var(--border-color);
}

.tl-counter-item {
    padding: 2rem 1.5rem;
    text-align: center;
    border-right: 1px solid var(--border-color);
    position: relative;
    transition: background 0.25s ease;
}
.tl-counter-item:last-child { border-right: none; }
.tl-counter-item:hover { background: var(--surface-color); }

.tl-cnt-num {
    font-family: var(--font-heading);
    font-size: clamp(36px, 4.5vw, 56px);
    color: #ffffff;
    line-height: 1;
    letter-spacing: 2px;
    display: block;
    transition: color 0.3s ease;
}
.tl-counter-item:hover .tl-cnt-num { color: #e8473f; }

.tl-cnt-label {
    font-family: var(--font-body);
    font-size: 10px;
    color: var(--text-secondary);
    letter-spacing: 2px;
    text-transform: uppercase;
    margin-top: 0.4rem;
    line-height: 1.4;
    display: block;
}

.tl-counter-item .win-note {
    font-family: 'Courier New', monospace;
    font-size: 8px;
    color: #f59e0b;
    letter-spacing: 1px;
    text-transform: uppercase;
    display: block;
    margin-top: 3px;
}

/* ================================================================
   MOBILE — single column
   ================================================================ */
@media (max-width: 768px) {
    .timeline-line {
        left: 20px;
    }

    .tl-item,
    .tl-item:nth-child(even) {
        justify-content: flex-start;
        padding: 0 0 0 60px;
        transform: translateX(-20px);
    }
    .tl-item.active,
    .tl-item:nth-child(even).active {
        transform: translateX(0);
    }

    .tl-item::before {
        left: 20px;
    }

    .tl-card {
        max-width: 100%;
    }

    .tl-counters {
        grid-template-columns: repeat(2, 1fr);
    }
    .tl-counter-item:nth-child(2) { border-right: none; }
    .tl-counter-item:nth-child(3) { border-top: 1px solid #222; }
    .tl-counter-item:nth-child(4) { border-top: 1px solid #222; border-right: none; }
}

@media (max-width: 480px) {
    .tl-counters {
        grid-template-columns: 1fr;
    }
    .tl-counter-item { border-right: none; border-bottom: 1px solid #222; }
    .tl-counter-item:last-child { border-bottom: none; }
}