/* ============================================================
   Timeline Styles — Snake Path + Image Slider + Scroll Fill
   ============================================================ */

/* ---- Page Container ---- */
.timeline-container {
    width: 100%;
    max-width: 1400px;
    margin: 0 auto;
    padding: 0;
    position: relative;
    min-height: 100vh;
}

/* ---- Title ---- */
.timeline-title {
    text-align: center;
    margin-bottom: 60px;
}

/* Code-label: console.log(currentLife) */
.code-label {
    display: inline-block;
    background: #1a1a1a;
    color: #F9B646;
    font-family: 'Courier New', 'Consolas', monospace;
    font-size: 15px;
    font-weight: 700;
    padding: 7px 18px;
    border: 2px solid #F9B646;
    letter-spacing: 0.5px;
    margin-bottom: 20px;
    box-shadow: 4px 4px 0 #F9B646;
    position: relative;
}

/* Colour coding for the label tokens */
.code-fn     { color: #89d5f5; }
.code-dot    { color: #fff; }
.code-method { color: #dcdcaa; }
.code-paren  { color: #ffd700; }
.code-var    { color: #9cdcfe; }

.timeline-title h1 {
    font-size: 80px;
    line-height: 0.9;
    font-weight: 900;
    text-transform: uppercase;
    font-style: italic;
}

/* ============================================================
   SNAKE SVG PROGRESS LINE
   ============================================================ */
.timeline-progress-wrapper {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    pointer-events: none;
    z-index: 0;
}

.snake-svg {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    overflow: visible;
}

.snake-path-base {
    stroke: #d1d1d1;
    stroke-width: 4;
    fill: none;
}

.snake-path-fill {
    stroke: #F9B646;
    stroke-width: 4;
    fill: none;
    stroke-linecap: round;
    stroke-dasharray: 0;
    stroke-dashoffset: 0;
    transition: stroke-dashoffset 0.1s linear;
}

/* ============================================================
   TIMELINE ITEMS — Full width, left/right via flex-direction
   ============================================================ */
.timeline {
    position: relative;
    width: 100%;
    margin-bottom: 50px;
    z-index: 1;
}

.timeline-item {
    padding: 10px 0;
    position: relative;
    width: 96%;           /* almost full page width */
    margin: 0 auto 80px auto;
    left: 0;              /* reset — no longer offset by 50% */
    display: flex;
    align-items: stretch;
    gap: 32px;
    opacity: 0;           /* GSAP animates in */
}

/* Left item: text-card on left, image on right */
.timeline-item.left  { flex-direction: row; }

/* Right item: image on left, text-card on right */
.timeline-item.right { flex-direction: row-reverse; }

/* ---- Icon on the snake line — in-flow flex item so it never overlaps cards ---- */
.timeline-icon {
    /* NOT absolute — sits naturally between content and image in the flex row */
    position: relative;
    flex-shrink: 0;
    width: 44px;
    height: 44px;
    background-color: #F9B646;
    border: 2px solid #000;
    z-index: 10;
    display: flex;
    justify-content: center;
    align-items: center;
    box-shadow: 4px 4px 0px #000;
    align-self: center;   /* vertically centred in the flex row */
}

/* Left item: DOM order → content | icon | image  (row)
   icon x ≈ 60% of item → left side of snake zigzag */
.timeline-item.left .timeline-icon  { /* in-flow, no override needed */ }

/* Right item: DOM order → content | icon | image  (row-reverse)
   Visual order → image | icon | content
   icon x ≈ 40% of item → right side of snake zigzag */
.timeline-item.right .timeline-icon { /* in-flow, no override needed */ }

.timeline-icon svg {
    width: 20px;
    height: 20px;
}

/* ---- Content block ---- */
.timeline-content {
    flex: 1.4;
    background: #fff;
    padding: 40px;
    border: 2px solid #000;
    box-shadow: 8px 8px 0px rgba(0,0,0,0.1);
    position: relative;
    cursor: default;
}

/* ============================================================
   IMAGE SLIDER  — 4:3 ratio + slide-in-from-right animation
   ============================================================ */
.timeline-image {
    flex: 1;
    display: flex;
    align-items: stretch;
}

/* Slider container holds all images via absolute positioning */
.img-slider {
    position: relative;
    width: 100%;
    /* 4:3 aspect ratio */
    aspect-ratio: 4 / 3;
    overflow: hidden;
    border: 2px solid #000;
    box-shadow: 8px 8px 0px rgba(0,0,0,0.15);
    cursor: pointer;
    background: #111;
    align-self: stretch;   /* stretch to fill .timeline-image height */
}

/* All images sit stacked on top of each other */
.img-slider .slider-img {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    object-fit: cover;
    /* Default: waiting off-screen to the RIGHT */
    transform: translateX(100%);
    transition: transform 0.65s cubic-bezier(0.4, 0, 0.2, 1);
    will-change: transform;
}

/* Active image is in view */
.img-slider .slider-img.active {
    transform: translateX(0);
}

/* Exiting image slides out to the LEFT */
.img-slider .slider-img.slide-out {
    transform: translateX(-100%);
}

/* When going prev: incoming enters from LEFT */
.img-slider .slider-img.from-left {
    transform: translateX(-100%);
}

/* Arrow buttons inside slider */
.slider-btn {
    position: absolute;
    top: 50%;
    transform: translateY(-50%);
    background: rgba(0,0,0,0.55);
    color: #fff;
    border: none;
    font-size: 28px;
    line-height: 1;
    width: 36px;
    height: 36px;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    z-index: 5;
    transition: background 0.2s;
    padding: 0;
}

.slider-btn:hover {
    background: #F9B646;
    color: #000;
}

.slider-prev { left: 6px; }
.slider-next { right: 6px; }

/* Dot indicators */
.slider-dots {
    position: absolute;
    bottom: 8px;
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    gap: 5px;
    z-index: 5;
}

.dot {
    width: 7px;
    height: 7px;
    border-radius: 50%;
    background: rgba(255,255,255,0.5);
    transition: background 0.2s;
    cursor: pointer;
}

.dot.active { background: #F9B646; }

/* Single-image: hide arrows/dots */
.img-slider.single .slider-btn,
.img-slider.single .slider-dots {
    display: none;
}

/* ---- Tag / Date ---- */
.tag-row {
    display: flex;
    align-items: center;
    margin-bottom: 20px;
    gap: 15px;
}

.tag {
    background: #000;
    color: #F9B646;
    padding: 6px 14px;
    font-size: 14px;
    font-weight: 800;
    text-transform: uppercase;
}

.date {
    font-size: 14px;
    font-weight: 700;
    color: #666;
    text-transform: uppercase;
}

.timeline-content h2 {
    font-size: 34px;
    font-weight: 900;
    margin-bottom: 15px;
    line-height: 1.1;
    text-transform: uppercase;
}

.timeline-content p {
    font-size: 16px;
    color: #444;
    line-height: 1.6;
}

/* ============================================================
   FULLSCREEN MODAL (with image slider)
   ============================================================ */
.timeline-modal {
    display: none;
    position: fixed;
    z-index: 2000;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.9);
    justify-content: center;
    align-items: center;
    backdrop-filter: blur(10px);
    opacity: 0;
    transition: opacity 0.3s ease;
}

.timeline-modal.active {
    display: flex;
    opacity: 1;
}

.timeline-modal-content {
    position: relative;
    max-width: 90vw;
    max-height: 90vh;
    display: flex;
    align-items: center;
    gap: 20px;
}

.timeline-modal-content img {
    width: auto;
    max-width: 80vw;
    max-height: 85vh;
    border: 4px solid #fff;
    border-radius: 6px;
    box-shadow: 0 10px 40px rgba(0,0,0,0.6);
    transition: opacity 0.3s;
}

.close-modal {
    position: absolute;
    top: -44px;
    right: 0;
    color: #fff;
    font-size: 38px;
    font-weight: bold;
    cursor: pointer;
    transition: color 0.2s;
    line-height: 1;
    z-index: 10;
}

.close-modal:hover { color: #F9B646; }

/* Modal navigation arrows */
.modal-arrow {
    background: rgba(255,255,255,0.15);
    border: 2px solid #fff;
    color: #fff;
    font-size: 36px;
    width: 50px;
    height: 50px;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    border-radius: 0;
    flex-shrink: 0;
    transition: all 0.2s;
    padding: 0;
    line-height: 1;
}

.modal-arrow:hover {
    background: #F9B646;
    color: #000;
    border-color: #F9B646;
}

.modal-arrow.hidden { display: none; }

/* Modal dots */
.modal-dots {
    position: absolute;
    bottom: -32px;
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    gap: 8px;
}

.modal-dots .dot {
    width: 9px;
    height: 9px;
    background: rgba(255,255,255,0.4);
}

.modal-dots .dot.active { background: #F9B646; }

/* ============================================================
   RESPONSIVE
   ============================================================ */
@media (max-width: 1024px) {
    .timeline-item {
        width: 98%;
        flex-direction: column !important;
        align-items: stretch;
        margin-bottom: 60px;
        gap: 0;
    }

    /* On mobile the icon stacks after the content card */
    .timeline-icon {
        align-self: flex-start;
        margin: 12px 0 0 16px;
    }

    .img-slider {
        aspect-ratio: 4 / 3;
    }

    .timeline-title h1 { font-size: 50px; }
    .timeline-content h2 { font-size: 26px; }
}

@media (max-width: 768px) {
    .timeline-container { padding: 0; }
    .timeline-title h1 { font-size: 40px; }
    .timeline-content { padding: 25px; }

    .tag-row {
        flex-direction: column;
        align-items: flex-start;
        gap: 10px;
    }

    /* Modal: arrows overlay the image so they don't need horizontal space */
    .timeline-modal-content {
        flex-direction: column;
        align-items: center;
        gap: 12px;
        max-width: 98vw;
        position: relative;
    }

    .timeline-modal-content img {
        max-width: 95vw;
        max-height: 62vh;
        width: 95vw;
        height: auto;
    }

    .modal-arrow {
        position: absolute;
        top: 50%;
        transform: translateY(-50%);
        z-index: 20;
        width: 38px;
        height: 38px;
        font-size: 26px;
        background: rgba(0,0,0,0.65);
    }

    .modal-prev { left: 6px; right: auto; }
    .modal-next { right: 6px; left: auto; }

    .modal-dots {
        bottom: -28px;
    }

    .close-modal {
        top: -36px;
        font-size: 30px;
    }
}