/* ============================================================
   InersiaLab Timeline — Premium Styles
   ============================================================ */

/* ── Reset & Section ─────────────────────────────────────── */
.ilt-timeline-section {
    --ilt-blue: #09192B;
    --ilt-orange: #E76212;
    --ilt-orange-light: rgba(231, 98, 18, 0.10);
    --ilt-orange-glow: rgba(231, 98, 18, 0.25);
    --ilt-white: #FFFFFF;
    --ilt-gray-50: #F9FAFB;
    --ilt-gray-100: #F3F4F6;
    --ilt-gray-200: #E5E7EB;
    --ilt-gray-400: #9CA3AF;
    --ilt-gray-500: #6B7280;
    --ilt-gray-600: #4B5563;
    --ilt-card-shadow: 0 1px 3px rgba(9, 25, 43, 0.06), 0 4px 16px rgba(9, 25, 43, 0.04);
    --ilt-card-shadow-hover: 0 4px 12px rgba(9, 25, 43, 0.08), 0 8px 32px rgba(9, 25, 43, 0.06);
    --ilt-transition: 0.45s cubic-bezier(0.25, 0.46, 0.45, 0.94);

    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    background: var(--ilt-white);
    padding: 80px 20px 100px;
    position: relative;
    overflow: hidden;
    box-sizing: border-box;
}

.ilt-timeline-section *,
.ilt-timeline-section *::before,
.ilt-timeline-section *::after {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}



/* ── Header ──────────────────────────────────────────────── */
.ilt-timeline-header {
    text-align: center;
    margin-bottom: 70px;
    position: relative;
    z-index: 1;
}

.ilt-timeline-label {
    display: inline-block;
    font-size: 0.75rem;
    font-weight: 700;
    letter-spacing: 0.2em;
    text-transform: uppercase;
    color: var(--ilt-orange);
    background: var(--ilt-orange-light);
    padding: 6px 18px;
    border-radius: 100px;
    margin-bottom: 16px;
}

.ilt-timeline-heading {
    font-size: clamp(1.75rem, 4vw, 2.75rem);
    font-weight: 800;
    color: var(--ilt-blue);
    line-height: 1.2;
    margin-bottom: 20px;
    letter-spacing: -0.02em;
}

.ilt-timeline-header-line {
    width: 60px;
    height: 4px;
    background: linear-gradient(90deg, var(--ilt-orange), rgba(231, 98, 18, 0.4));
    border-radius: 100px;
    margin: 0 auto;
}

/* ── Timeline Wrapper ────────────────────────────────────── */
.ilt-timeline-wrapper {
    position: relative;
    max-width: 1000px;
    margin: 0 auto;
    z-index: 1;
}

/* ── Vertical line ───────────────────────────────────────── */
.ilt-timeline-line {
    position: absolute;
    left: 50%;
    top: 0;
    bottom: 0;
    width: 3px;
    background: var(--ilt-gray-200);
    transform: translateX(-50%);
    border-radius: 100px;
    z-index: 0;
}

.ilt-timeline-line-progress {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 0%;
    background: linear-gradient(180deg, var(--ilt-orange), rgba(231, 98, 18, 0.3));
    border-radius: 100px;
    transition: height 0.1s linear;
}

/* ── Timeline item ───────────────────────────────────────── */
.ilt-timeline-item {
    position: relative;
    display: flex;
    align-items: flex-start;
    width: 100%;
    margin-bottom: 20px;
    opacity: 0;
    transform: translateY(40px);
    transition: opacity var(--ilt-transition), transform var(--ilt-transition);
}

.ilt-timeline-item.ilt-visible {
    opacity: 1;
    transform: translateY(0);
}

/* Left item: card on left, badge center */
.ilt-timeline-item--left {
    flex-direction: row-reverse;
}

/* Right item: card on right, badge center */
.ilt-timeline-item--right {
    flex-direction: row;
}

/* ── Badge (step number on the line) ─────────────────────── */
.ilt-timeline-badge {
    position: absolute;
    left: 50%;
    top: 24px;
    transform: translateX(-50%);
    z-index: 2;
    width: 48px;
    height: 48px;
    border-radius: 50%;
    background: linear-gradient(135deg, var(--ilt-orange), #c44f0a);
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: 0 0 0 5px var(--ilt-white), 0 0 0 7px var(--ilt-orange-glow), 0 4px 14px var(--ilt-orange-glow);
    transition: transform 0.35s ease, box-shadow 0.35s ease;
}

.ilt-timeline-item:hover .ilt-timeline-badge {
    transform: translateX(-50%) scale(1.1);
    box-shadow: 0 0 0 5px var(--ilt-white), 0 0 0 9px var(--ilt-orange-glow), 0 6px 20px var(--ilt-orange-glow);
}

.ilt-timeline-badge-step {
    font-size: 0.8rem;
    font-weight: 700;
    color: var(--ilt-white);
    line-height: 1;
}

/* ── Card ────────────────────────────────────────────────── */
.ilt-timeline-card {
    position: relative;
    width: calc(50% - 56px);
    background: var(--ilt-white);
    border: 1px solid var(--ilt-gray-200);
    border-radius: 16px;
    padding: 28px 28px 24px;
    box-shadow: var(--ilt-card-shadow);
    transition: box-shadow var(--ilt-transition), transform var(--ilt-transition), border-color var(--ilt-transition);
}

.ilt-timeline-item:hover .ilt-timeline-card {
    box-shadow: var(--ilt-card-shadow-hover);
    transform: translateY(-2px);
    border-color: var(--ilt-orange-glow);
}

/* ── Connector line from card to badge ───────────────────── */
.ilt-timeline-card-connector {
    position: absolute;
    top: 36px;
    width: 32px;
    height: 2px;
    background: var(--ilt-gray-200);
    transition: background var(--ilt-transition);
}

.ilt-timeline-item:hover .ilt-timeline-card-connector {
    background: var(--ilt-orange);
}

/* Left side: connector extends to the right */
.ilt-timeline-item--left .ilt-timeline-card {
    margin-right: auto;
}

.ilt-timeline-item--left .ilt-timeline-card-connector {
    right: -32px;
}

/* Right side: connector extends to the left */
.ilt-timeline-item--right .ilt-timeline-card {
    margin-left: auto;
}

.ilt-timeline-item--right .ilt-timeline-card-connector {
    left: -32px;
}

/* ── Card Icon ───────────────────────────────────────────── */
.ilt-timeline-card-icon {
    width: 40px;
    height: 40px;
    border-radius: 10px;
    background: var(--ilt-orange-light);
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 14px;
    transition: background var(--ilt-transition), transform var(--ilt-transition);
}

.ilt-timeline-item:hover .ilt-timeline-card-icon {
    background: var(--ilt-orange);
    transform: scale(1.05);
}

.ilt-timeline-card-icon svg {
    width: 20px;
    height: 20px;
    color: var(--ilt-orange);
    transition: color var(--ilt-transition);
}

.ilt-timeline-item:hover .ilt-timeline-card-icon svg {
    color: var(--ilt-white);
}

/* ── Card Title ──────────────────────────────────────────── */
.ilt-timeline-card-title {
    font-size: 1.05rem;
    font-weight: 700;
    color: var(--ilt-blue);
    margin-bottom: 8px;
    line-height: 1.3;
    letter-spacing: -0.01em;
}

/* ── Card Description ────────────────────────────────────── */
.ilt-timeline-card-desc {
    font-size: 0.875rem;
    font-weight: 400;
    color: var(--ilt-gray-500);
    line-height: 1.65;
}

/* ── End Node ────────────────────────────────────────────── */
.ilt-timeline-end-node {
    display: flex;
    justify-content: center;
    padding-top: 20px;
}

.ilt-timeline-end-dot {
    width: 18px;
    height: 18px;
    border-radius: 50%;
    background: var(--ilt-orange);
}


/* ── Slide-in animation directions ───────────────────────── */
.ilt-timeline-item--left {
    transform: translateX(-40px);
}

.ilt-timeline-item--right {
    transform: translateX(40px);
}

.ilt-timeline-item--left.ilt-visible,
.ilt-timeline-item--right.ilt-visible {
    transform: translateX(0);
}

/* ============================================================
   RESPONSIVE
   ============================================================ */

/* ── Tablet (≤ 768px) — single column ────────────────────── */
@media (max-width: 768px) {
    .ilt-timeline-section {
        padding: 60px 16px 80px;
    }

    .ilt-timeline-header {
        margin-bottom: 50px;
    }

    .ilt-timeline-line {
        left: 28px;
        transform: none;
    }

    .ilt-timeline-item,
    .ilt-timeline-item--left,
    .ilt-timeline-item--right {
        flex-direction: row;
        padding-left: 72px;
    }

    .ilt-timeline-badge {
        left: 28px;
        top: 20px;
        width: 40px;
        height: 40px;
    }

    .ilt-timeline-item:hover .ilt-timeline-badge {
        transform: translateX(-50%) scale(1.08);
    }

    .ilt-timeline-badge-step {
        font-size: 0.7rem;
    }

    .ilt-timeline-card {
        width: 100%;
        padding: 22px 22px 20px;
    }

    .ilt-timeline-card-connector {
        display: none;
    }

    .ilt-timeline-item--left .ilt-timeline-card,
    .ilt-timeline-item--right .ilt-timeline-card {
        margin-left: 0;
        margin-right: 0;
    }

    .ilt-timeline-end-node {
        justify-content: flex-start;
        padding-left: 6px;
    }

    /* Reset animation directions for mobile */
    .ilt-timeline-item--left,
    .ilt-timeline-item--right {
        transform: translateY(30px);
        opacity: 0;
    }

    .ilt-timeline-item--left.ilt-visible,
    .ilt-timeline-item--right.ilt-visible {
        transform: translateY(0);
        opacity: 1;
    }
}

/* ── Small phones (≤ 480px) ──────────────────────────────── */
@media (max-width: 480px) {
    .ilt-timeline-section {
        padding: 40px 12px 60px;
    }

    .ilt-timeline-header {
        margin-bottom: 36px;
    }

    .ilt-timeline-label {
        font-size: 0.65rem;
        padding: 5px 14px;
    }

    .ilt-timeline-heading {
        font-size: 1.5rem;
    }

    .ilt-timeline-line {
        left: 22px;
    }

    .ilt-timeline-item,
    .ilt-timeline-item--left,
    .ilt-timeline-item--right {
        padding-left: 58px;
        margin-bottom: 16px;
    }

    .ilt-timeline-badge {
        left: 22px;
        width: 34px;
        height: 34px;
    }

    .ilt-timeline-badge-step {
        font-size: 0.6rem;
    }

    .ilt-timeline-card {
        padding: 18px 16px 16px;
        border-radius: 12px;
    }

    .ilt-timeline-card-icon {
        width: 34px;
        height: 34px;
        border-radius: 8px;
        margin-bottom: 10px;
    }

    .ilt-timeline-card-icon svg {
        width: 16px;
        height: 16px;
    }

    .ilt-timeline-card-title {
        font-size: 0.95rem;
    }

    .ilt-timeline-card-desc {
        font-size: 0.8rem;
    }

    .ilt-timeline-end-dot {
        width: 44px;
        height: 44px;
    }

    .ilt-timeline-end-dot svg {
        width: 20px;
        height: 20px;
    }
}