/* Scripts page (category.html). Uses styles.css for the top bar, category tiles, sale strip, footer and float UI. */

/* ---------- Head: blurred backdrop and title ---------- */

.cat-head {
    position: relative;
    isolation: isolate;
    padding-bottom: clamp(32px, 3vw, 56px);
}

/* The home hero picture: sharp on the right, blurred behind, fading into the page colour at the bottom. */
/* It reaches well below the head and melts away on long eased steps (a mask, not a colour), so there is no line
   where the picture ends: it thins out behind the top of the cards. */
.cat-head__bg {
    position: absolute;
    inset: 0 0 clamp(-360px, -22vw, -180px);
    z-index: -1;
    overflow: hidden;
    -webkit-mask-image: linear-gradient(180deg, #000 0%, #000 30%, rgba(0,0,0,0.94) 40%, rgba(0,0,0,0.82) 49%, rgba(0,0,0,0.66) 58%, rgba(0,0,0,0.48) 66%, rgba(0,0,0,0.31) 74%, rgba(0,0,0,0.17) 82%, rgba(0,0,0,0.07) 89%, rgba(0,0,0,0.02) 95%, transparent 100%);
    mask-image: linear-gradient(180deg, #000 0%, #000 30%, rgba(0,0,0,0.94) 40%, rgba(0,0,0,0.82) 49%, rgba(0,0,0,0.66) 58%, rgba(0,0,0,0.48) 66%, rgba(0,0,0,0.31) 74%, rgba(0,0,0,0.17) 82%, rgba(0,0,0,0.07) 89%, rgba(0,0,0,0.02) 95%, transparent 100%);
    pointer-events: none;
}
.cat-head__bg::after {
    content: '';
    position: absolute;
    inset: 0;
    z-index: 2;
    background: linear-gradient(180deg, transparent 0%, rgba(11, 12, 18, 0.12) 35%, rgba(11, 12, 18, 0.3) 70%, rgba(11, 12, 18, 0.4) 100%);
}

.cat-head__row {
    display: flex;
    align-items: flex-end;
    justify-content: space-between;
    gap: clamp(24px, 4vw, 80px);
    padding: clamp(36px, 4vw, 72px) var(--gutter) 0;
}

/* Sale block on the right: the home hero's sale, a size smaller. */
.cat-sale { flex: none; } /* animates once, as a whole (catIn below) */
.cat-sale[hidden] { display: none; }
.cat-sale .sale-a__big { font-size: clamp(80px, 7vw, 140px); }
.cat-sale .sale-a__name { margin: 0; font-size: 13px; font-weight: 800; letter-spacing: 0.18em; text-transform: uppercase; color: var(--gold); }
.cat-sale .cd { margin-top: 10px; }

@media (max-width: 960px) {
    .cat-head__row { flex-direction: column; align-items: flex-start; }
}

.cat-head__eyebrow {
    font-size: 12px;
    font-weight: 800;
    letter-spacing: 0.16em;
    text-transform: uppercase;
    color: #c4a6ff;
}

.cat-head__title h1 {
    margin: 8px 0 0;
    font-family: 'Gilroy', 'Inter', sans-serif; /* was 'Big Shoulders Display' (trial: Gilroy) */
    letter-spacing: -0.03em;
    font-size: clamp(56px, 6vw, 112px);
    font-weight: 800;
    line-height: 0.95;
}

.cat-head__title p { max-width: 620px; margin: 14px 0 0; font-size: clamp(15px, 1.05vw, 18px); line-height: 1.5; color: var(--muted); }

/* ---------- Layout: sticky filter column on the left, results on the right ---------- */

.cat-main {
    position: relative; /* paints over the head background, which reaches down behind it */
    display: grid;
    grid-template-columns: clamp(220px, 15vw, 280px) minmax(0, 1fr);
    align-items: start;
    gap: clamp(24px, 2.6vw, 48px);
    padding: clamp(24px, 2.4vw, 40px) var(--gutter) clamp(64px, 6vw, 120px);
}

/* Filter panel: a glass column of small blocks. Version and sort are segmented switches,
   series and frameworks are pills. */
.side {
    position: sticky;
    top: 24px;
    display: grid;
    gap: 20px;
    padding: 20px;
    border-radius: 22px;
    border: 1px solid rgba(255, 255, 255, 0.08);
    background: rgba(255, 255, 255, 0.02); /* plain, no extra light */
    -webkit-backdrop-filter: blur(16px);
    backdrop-filter: blur(16px);
}

.side__head { display: flex; align-items: center; justify-content: space-between; }
.side__head h2 { margin: 0; font-size: 18px; font-weight: 800; letter-spacing: -0.02em; }
.side__reset { padding: 4px 10px; border-radius: 999px; background: rgba(167, 123, 255, 0.16); font-size: 12px; font-weight: 800; color: #d4bfff; }
.side__reset:hover { background: rgba(167, 123, 255, 0.28); color: #fff; }
.side__reset[hidden] { display: none; }

.side__group h3 { margin: 0 0 10px; font-size: 11px; font-weight: 800; letter-spacing: 0.16em; text-transform: uppercase; color: var(--faint); }

/* Segmented switch: options side by side in one rounded track. */
.seg {
    position: relative;
    isolation: isolate;
    display: grid;
    gap: 4px;
    padding: 4px;
    border-radius: 14px;
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid rgba(255, 255, 255, 0.08);
}

.seg--3 { grid-template-columns: repeat(3, auto); }
.seg--2 { grid-template-columns: repeat(2, auto); }

/* The white thumb slides to the picked option instead of jumping. Its place and width come from the picked
   button itself (category.js sets --x and --w), so it fits even when the options are not the same width. */
.seg::before {
    content: '';
    position: absolute;
    top: 4px;
    bottom: 4px;
    left: 0;
    z-index: -1;
    width: var(--w, 0px);
    border-radius: 10px;
    background: #fff;
    transform: translateX(var(--x, 4px));
}

.seg.is-ready::before { transition: transform 0.4s var(--ease), width 0.4s var(--ease); }

.seg__opt {
    padding: 8px 6px;
    border-radius: 10px;
    font-size: 12px;
    font-weight: 700;
    color: var(--muted);
    white-space: nowrap;
    transition: background 0.25s var(--ease), color 0.25s var(--ease);
}

.seg__opt:hover { color: var(--text); }
.seg__opt.is-active { color: #0b0c12; } /* the white behind it is the sliding thumb (.seg::before) */

/* Pills: wrap onto as many lines as they need. */
.pills { display: flex; flex-wrap: wrap; gap: 6px; }

.pill {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    height: 32px;
    padding: 0 12px;
    border-radius: 999px;
    border: 1px solid rgba(255, 255, 255, 0.1);
    background: rgba(255, 255, 255, 0.04);
    font-size: 13px;
    font-weight: 700;
    color: var(--muted);
    transition: background 0.25s var(--ease), color 0.25s var(--ease), border-color 0.25s var(--ease);
}

.pill small { font-size: 11px; font-weight: 800; color: var(--faint); }
.pill:hover { color: var(--text); border-color: rgba(255, 255, 255, 0.22); }
.pill.is-active { background: rgba(167, 123, 255, 0.2); border-color: rgba(196, 166, 255, 0.6); color: #fff; }
.pill.is-active small { color: #d4bfff; }

/* Series: one under another. Each row has a small letter badge in the series' colour (--tone), the name
   and the count; the chosen row lights up in its colour with a soft glow from the left. */
.series { display: grid; gap: 4px; }

.series__row {
    position: relative;
    display: flex;
    align-items: center;
    gap: 10px;
    width: 100%;
    padding: 6px 10px 6px 6px;
    border-radius: 12px;
    border: 1px solid transparent;
    text-align: left;
    color: var(--muted);
    transition: background 0.25s var(--ease), border-color 0.25s var(--ease), color 0.25s var(--ease);
}

.series__row:hover { background: rgba(255, 255, 255, 0.05); color: var(--text); }

.series__badge {
    display: grid;
    place-items: center;
    flex: none;
    width: 28px;
    height: 28px;
    border-radius: 8px;
    background: color-mix(in srgb, var(--tone) 18%, transparent);
    color: var(--tone);
    font-size: 13px;
    font-weight: 800;
    transition: background 0.25s var(--ease), color 0.25s var(--ease);
}

.series__badge svg { width: 16px; height: 16px; }
.series__name { flex: 1; font-size: 14px; font-weight: 700; }
.series__count { font-size: 12px; font-weight: 800; color: var(--faint); }

.series__row.is-active {
    border-color: transparent;
    background: var(--tone); /* the picked row is filled with its own colour, dark text on it */
    color: #0b0c12;
}

.series__row.is-active .series__badge { background: rgba(11, 12, 18, 0.16); color: #0b0c12; }
.series__row.is-active .series__count { color: rgba(11, 12, 18, 0.7); }

/* Framework pills show a tick when on. */
.pill--check.is-active::before { content: '✓'; font-size: 12px; color: #c4a6ff; }

.results__bar { display: flex; }

.results__search {
    display: flex;
    align-items: center;
    gap: 10px;
    flex: 1;
    height: 50px;
    padding: 0 18px;
    border-radius: 16px;
    border: 1px solid rgba(255, 255, 255, 0.08);
    background: rgba(255, 255, 255, 0.02); /* same plain glass as the filter panel */
    -webkit-backdrop-filter: blur(16px);
    backdrop-filter: blur(16px);
    color: var(--muted);
    transition: border-color 0.3s var(--ease);
}

.results__search:focus-within { border-color: rgba(196, 166, 255, 0.5); }
.results__search svg { width: 18px; height: 18px; flex: none; }
.results__search input { flex: 1; min-width: 0; border: 0; outline: 0; background: none; color: var(--text); font: inherit; font-size: 15px; }
.results__count { flex: none; font-size: 13px; color: var(--faint); }
.results__count b { color: var(--text); }

/* ---------- Store cards: picture on top, details and the two buttons below ---------- */

.grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(clamp(240px, 17vw, 320px), 1fr));
    gap: clamp(14px, 1.2vw, 22px);
    margin-top: 18px;
}

.tile {
    position: relative;
    isolation: isolate;
    container-type: inline-size; /* the price and buttons scale with the card's own width (cqi) */
    overflow: hidden;
    /* Cards off screen are not drawn at all until they come near the view. */
    content-visibility: auto;
    contain-intrinsic-size: auto 440px;
    display: flex;
    flex-direction: column;
    padding: 8px;
    border-radius: 22px;
    border: 1px solid rgba(255, 255, 255, 0.07);
    background:
        radial-gradient(120% 60% at 50% 120%, rgba(167, 123, 255, 0.12), transparent 70%),
        rgba(20, 19, 32, 0.85);
    /* Cards arrive blur to sharp, a little after one another. */
    --in-blur: 8px;
    --in-y: 0px;
    animation: catIn 0.6s var(--ease) backwards;
    animation-delay: calc(0.3s + var(--i) * 0.04s);
    transition: transform 0.4s var(--ease), border-color 0.4s var(--ease), box-shadow 0.4s var(--ease);
}

/* Card background: the script's own picture, heavily blurred and darkened (--art is set per card). */
.tile::before {
    content: '';
    position: absolute;
    inset: -30px;
    z-index: -1;
    background: var(--art) center / cover no-repeat;
    filter: blur(36px) saturate(1.3) brightness(0.38);
    transform: scale(1.15);
}

.tile:hover { transform: translateY(-4px); border-color: transparent; box-shadow: 0 24px 54px rgba(0, 0, 0, 0.5); }

/* Hover frame in the card's own colours: the picture, blurred and brightened, shown only in a thin ring
   along the card edge. The thick transparent border gives the blur room so the ring has no faded edges. */
.tile::after {
    content: '';
    position: absolute;
    inset: -40px;
    z-index: 1;
    padding: 1.5px;
    border: 40px solid transparent;
    border-radius: 62px;
    background: var(--art) 0% 50% / 260% 260% no-repeat border-box;
    filter: blur(14px) saturate(2) brightness(1.6);
    /* The colours drift slowly around the edge while the card is hovered. */
    animation: ringFlow 7s linear infinite paused;
    -webkit-mask: linear-gradient(#000 0 0) padding-box, linear-gradient(#000 0 0) content-box;
    -webkit-mask-composite: xor;
    mask: linear-gradient(#000 0 0) padding-box exclude, linear-gradient(#000 0 0) content-box;
    opacity: 0;
    pointer-events: none;
    transition: opacity 0.4s var(--ease);
}

.tile:hover::after { opacity: 1; animation-play-state: running; }

@keyframes ringFlow {
    0% { background-position: 0% 50%; }
    25% { background-position: 50% 0%; }
    50% { background-position: 100% 50%; }
    75% { background-position: 50% 100%; }
    100% { background-position: 0% 50%; }
}

/* Picture inset in the card, with its own rounded corners. */
.tile__art { position: relative; display: block; aspect-ratio: 16 / 11.5; overflow: hidden; border-radius: 15px; background: #1b1d25; }
.tile__img { width: 100%; height: 100%; object-fit: cover; }
.tile:hover .tile__img { transform: scale(1.05); }


.tile__body { display: flex; flex-direction: column; gap: 10px; flex: 1; padding: 16px 16px 16px; }
.tile__top { display: flex; flex-wrap: wrap; align-items: center; justify-content: space-between; gap: 6px 8px; }
.tile__series { font-size: 11px; font-weight: 800; letter-spacing: 0.14em; text-transform: uppercase; color: #c4a6ff; }
.tile__fw { display: flex; gap: 3px; }
.tile__fw i { padding: 3px 8px; border-radius: 7px; background: rgba(255, 255, 255, 0.09); font-style: normal; font-size: 11px; font-weight: 700; color: rgba(255, 255, 255, 0.78); }
.tile__name { font-size: 23px; font-weight: 800; letter-spacing: -0.02em; line-height: 1.2; }
.tile__name:hover { color: #d4bfff; }

/* Price on the left (old price and discount above it), then Add to Basket and a round Details arrow. */
.tile__foot { display: flex; align-items: center; justify-content: space-between; gap: 10px; margin-top: auto; padding-top: 34px; }
.tile__price { display: grid; line-height: 1.1; }
.tile__was { display: flex; align-items: center; gap: 6px; }
.tile__price s { font-size: clamp(12px, 4.2cqi, 15px); color: var(--faint); white-space: nowrap; }
.tile__was em { padding: 2px 8px; border-radius: 7px; background: var(--gold); color: #1a1406; font-style: normal; font-size: clamp(11px, 3.6cqi, 13px); font-weight: 800; white-space: nowrap; }
.tile__free { justify-self: start; padding: 4px 12px; border-radius: 8px; background: #a77bff; color: #fff; font-style: normal; font-size: 18px; font-weight: 800; letter-spacing: 0.02em; }
.tile__price b { font-size: clamp(22px, 8cqi, 32px); font-weight: 800; letter-spacing: -0.02em; white-space: nowrap; }
.tile__actions { display: flex; align-items: center; gap: 6px; }

.tile__details {
    display: grid;
    place-items: center;
    width: 40px;
    height: 40px;
    border-radius: 50%;
    border: 1px solid rgba(255, 255, 255, 0.14);
    background: rgba(255, 255, 255, 0.05);
    transition: background 0.3s var(--ease), border-color 0.3s var(--ease);
}

.tile__details svg { width: 16px; height: 16px; }
.tile__details:hover { background: rgba(255, 255, 255, 0.12); border-color: rgba(255, 255, 255, 0.3); }

/* Narrow cards: the Details arrow steps aside so the price and Add to Basket fit (the picture and name open the
   script page too). */
@container (max-width: 300px) {
    .tile__details { display: none; }
    .tile__foot { gap: 6px; }
    .tile__add { padding: 0 10px; }
    .tile__was { gap: 4px; }
    .tile__was em { padding: 2px 5px; }
}

.tile__add {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    height: 40px;
    padding: 0 clamp(12px, 4.4cqi, 16px);
    border-radius: 999px;
    background: #fff;
    color: #0b0c12;
    font-size: clamp(12px, 3.8cqi, 13px);
    font-weight: 800;
    white-space: nowrap;
    transition: box-shadow 0.3s var(--ease), background 0.3s var(--ease), color 0.3s var(--ease);
}

.tile__add:hover { box-shadow: 0 0 0 4px rgba(255, 255, 255, 0.16); }

.grid-empty { margin: 40px 0; text-align: center; color: var(--muted); }
.grid-empty[hidden] { display: none; }

@media (max-width: 860px) {
    .cat-main { grid-template-columns: 1fr; }
    .side { position: static; }
}

/* ---------- Entrance: the content comes in piece by piece (the top bar and category tiles stay put) ---------- */
.cat-head__title > *, .cat-sale, .side, .results__bar {
    animation: catIn 0.7s var(--ease) backwards;
}

.cat-head__title > :nth-child(2) { animation-delay: 0.06s; }
.cat-head__title > :nth-child(3) { animation-delay: 0.12s; }
.cat-sale { animation-delay: 0.18s; }
.side { animation-delay: 0.24s; }
.results__bar { animation-delay: 0.28s; }

/* Entrances only describe where they start and use "backwards": once over they leave nothing behind
   (a held blur(0) filter would keep every element on its own layer and make scrolling heavy). */
@keyframes catIn { from { opacity: 0; filter: blur(var(--in-blur, 10px)); transform: translateY(var(--in-y, 14px)); } }

/* The picture sits near the middle of the head (soft on both sides and at the bottom). */
.cat-head__bg .hero-layer .hero-layer__main {
    right: auto;
    left: 40%; /* a little left of centre, clear of the sale block on the right */
    transform: translateX(-50%);
    -webkit-mask-image: linear-gradient(90deg, transparent 0%, #000 22%, #000 78%, transparent 100%), linear-gradient(180deg, #000 55%, transparent 100%);
    -webkit-mask-composite: source-in;
    mask-image: linear-gradient(90deg, transparent 0%, #000 22%, #000 78%, transparent 100%), linear-gradient(180deg, #000 55%, transparent 100%);
    mask-composite: intersect;
}