/* ==========================================================================
   PU FLOW — Zigzag Timeline Product Showcase
   Shared by list_pu.html / list_products.html (and reusable on any product
   category list page that renders the .pu-flow-* markup).
   ========================================================================== */

:root {
    --pu-accent: #AEDA1F;
    --pu-accent-dark: #8cb815;
    --pu-primary: #0a2f1a;
    --pu-bg: #f6faf0;
    --pu-line: rgba(174,218,31,0.35);
}

/* Section base */
.pu-showcase-section {
    padding: 5rem 0 5.5rem;
    background: var(--pu-bg);
    position: relative;
}
.pu-showcase-section .weaving-section-header {
    max-width: 720px;
    margin: 0 auto 4.5rem;
    text-align: center;
    width: 100%;
}
.pu-showcase-section .weaving-section-eyebrow {
    display: inline-block;
    color: var(--pu-accent-dark);
    background: rgba(174,218,31,0.18);
    padding: 0.45rem 1.1rem;
    border-radius: 999px;
    margin-bottom: 1.1rem;
}
.pu-showcase-section .section-title {
    color: var(--pu-primary);
    font-size: clamp(2rem, 4vw, 2.75rem);
    font-weight: 800;
    line-height: 1.1;
}
.pu-showcase-section .section-title em {
    font-style: normal;
    color: var(--pu-accent-dark);
}
.pu-showcase-section .weaving-section-header p {
    font-size: 1rem;
    color: #5a6b5f;
    line-height: 1.75;
    margin-top: 1rem;
    max-width: 640px;
    margin-left: auto;
    margin-right: auto;
}

/* ==========================================================
   Core: zigzag layout + left-side timeline numbers
   ========================================================== */
.pu-flow-list {
    position: relative;
    padding: 0;
    margin: 0;
    list-style: none;
}

/* Timeline vertical line (connecting 01-06 badges) */
.pu-flow-list::before {
    content: '';
    position: absolute;
    top: 2.5rem;
    bottom: 2.5rem;
    left: 3rem;
    width: 2px;
    background: linear-gradient(
        to bottom,
        transparent 0%,
        var(--pu-line) 8%,
        var(--pu-line) 92%,
        transparent 100%
    );
    z-index: 1;
}

/* Row container */
.pu-flow-item {
    position: relative;
    margin-bottom: 4.5rem;
    padding-left: 8.5rem;
    min-height: 220px;
}
.pu-flow-item:last-child {
    margin-bottom: 0;
}

/* Number badge (anchored on the timeline) */
.pu-flow-number {
    position: absolute;
    left: 0.3rem;
    top: 1.8rem;
    width: 74px;
    height: 74px;
    border-radius: 50%;
    background: #fff;
    border: 2px solid var(--pu-line);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 2;
    box-shadow: 0 8px 24px rgba(10,47,26,0.08);
    transition: all 0.4s ease;
}
.pu-flow-number span {
    font-family: var(--font-heading);
    font-weight: 800;
    color: var(--pu-primary);
    font-size: 1.35rem;
    line-height: 1;
    letter-spacing: 0.02em;
}
.pu-flow-number span::before {
    content: '0';
    opacity: 0.3;
}

/* Inner: image + copy two columns */
.pu-flow-inner {
    display: grid;
    grid-template-columns: 5fr 5fr;
    gap: 3.5rem;
    align-items: center;
}

/* Odd items (1/3/5) reverse: text left, image right */
.pu-flow-item:nth-child(odd) .pu-flow-inner {
    direction: rtl;
}
.pu-flow-item:nth-child(odd) .pu-flow-inner > * {
    direction: ltr;
}

/* ---------- Image card ---------- */
.pu-flow-image {
    position: relative;
    border-radius: 18px;
    overflow: hidden;
    box-shadow: 0 12px 30px rgba(10,47,26,0.14);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
    background: linear-gradient(135deg, #f0f7e0 0%, #e5f2c8 100%);
    padding: 0.85rem;
    display: flex;
    align-items: center;
    justify-content: center;
    min-height: 220px;
}
.pu-flow-item:hover .pu-flow-image {
    transform: translateY(-4px);
    box-shadow: 0 20px 48px rgba(10,47,26,0.22);
}
.pu-flow-image img {
    width: 100%;
    height: auto;
    max-width: 100%;
    display: block;
    border-radius: 10px;
    transition: transform 0.4s ease;
}
.pu-flow-item:hover .pu-flow-image img {
    transform: scale(1.02);
}
.pu-flow-image-tag {
    position: absolute;
    bottom: 0.9rem;
    right: 0.9rem;
    background: rgba(10,47,26,0.85);
    color: var(--pu-accent);
    font-family: var(--font-heading);
    font-size: 0.7rem;
    font-weight: 700;
    letter-spacing: 0.14em;
    text-transform: uppercase;
    padding: 0.45rem 0.85rem;
    border-radius: 6px;
    backdrop-filter: blur(6px);
    z-index: 2;
}

/* ---------- Copy column ---------- */
.pu-flow-content {
    padding: 1.25rem 0;
}
.pu-flow-tag {
    display: inline-flex;
    align-items: center;
    gap: 0.45rem;
    font-family: var(--font-heading);
    font-size: 0.68rem;
    font-weight: 700;
    letter-spacing: 0.18em;
    text-transform: uppercase;
    color: var(--pu-accent-dark);
    margin-bottom: 1rem;
}
.pu-flow-tag::before {
    content: '';
    width: 20px;
    height: 2px;
    background: var(--pu-accent);
}
.pu-flow-title {
    font-family: var(--font-heading);
    font-size: clamp(1.35rem, 2.2vw, 1.85rem);
    font-weight: 800;
    color: var(--pu-primary);
    line-height: 1.2;
    margin-bottom: 1rem;
    transition: color 0.3s ease;
}
.pu-flow-item:hover .pu-flow-title {
    color: var(--pu-accent-dark);
}
.pu-flow-desc {
    font-size: 0.94rem;
    color: #516156;
    line-height: 1.78;
    margin-bottom: 1.5rem;
}
.pu-flow-cta {
    display: inline-flex;
    align-items: center;
    gap: 0.55rem;
    font-family: var(--font-heading);
    font-size: 0.78rem;
    font-weight: 700;
    letter-spacing: 0.12em;
    text-transform: uppercase;
    color: var(--pu-primary);
    padding: 0.65rem 0;
    border-bottom: 2px solid transparent;
    transition: all 0.3s ease;
}
.pu-flow-cta svg {
    width: 18px;
    height: 18px;
    transition: transform 0.3s ease;
}
.pu-flow-item:hover .pu-flow-cta {
    color: var(--pu-accent-dark);
    border-bottom-color: var(--pu-accent);
    gap: 0.85rem;
}
.pu-flow-item:hover .pu-flow-cta svg {
    transform: translateX(4px);
}

/* Odd-item badge color inversion for visual rhythm */
.pu-flow-item:nth-child(odd) .pu-flow-number {
    background: var(--pu-primary);
    border-color: var(--pu-accent);
}
.pu-flow-item:nth-child(odd) .pu-flow-number span {
    color: var(--pu-accent);
}
.pu-flow-item:hover .pu-flow-number {
    transform: scale(1.08);
    background: var(--pu-accent) !important;
    border-color: var(--pu-accent) !important;
}
.pu-flow-item:hover .pu-flow-number span {
    color: var(--pu-primary) !important;
}

/* Soft divider between items */
.pu-flow-item:not(:last-child)::after {
    content: '';
    position: absolute;
    left: 8.5rem;
    right: 0;
    bottom: -2.25rem;
    height: 1px;
    background: linear-gradient(
        to right,
        transparent 0%,
        rgba(10,47,26,0.08) 20%,
        rgba(10,47,26,0.08) 80%,
        transparent 100%
    );
}

/* ---------- Responsive ---------- */
@media (max-width: 1100px) {
    .pu-flow-item {
        padding-left: 7rem;
    }
    .pu-flow-list::before {
        left: 2.4rem;
    }
    .pu-flow-number {
        left: 0;
        width: 64px;
        height: 64px;
    }
    .pu-flow-number span { font-size: 1.2rem; }
    .pu-flow-inner {
        grid-template-columns: 1fr 1fr;
        gap: 2rem;
    }
    .pu-flow-item:not(:last-child)::after {
        left: 7rem;
    }
}
@media (max-width: 820px) {
    .pu-showcase-section { padding: 3.5rem 0 4rem; }
    .pu-showcase-section .weaving-section-header { margin-bottom: 3rem; }
    .pu-flow-list::before { display: none; }
    .pu-flow-item {
        padding-left: 0;
        margin-bottom: 3.5rem;
        min-height: unset;
    }
    .pu-flow-number {
        position: relative;
        top: 0;
        left: 0;
        width: 56px;
        height: 56px;
        margin-bottom: 1rem;
    }
    .pu-flow-inner {
        grid-template-columns: 1fr;
        gap: 1.25rem;
    }
    .pu-flow-item:nth-child(odd) .pu-flow-inner {
        direction: ltr;
    }
    .pu-flow-item:hover .pu-flow-image {
        transform: translateY(-3px);
    }
    .pu-flow-content { padding: 0; }
    .pu-flow-item:not(:last-child)::after {
        left: 0;
        bottom: -1.75rem;
    }
}