:root {
    --bg: #fcf9fc;
    --surface: #fff;
    --ink: #1b1022;
    --muted: #6b5f72;
    --line: #ece4ef;
    --brand: #65008d;
    --hot: #f20051;
    --grad: linear-gradient(120deg, #f20051, #c10074 30%, #740089 60%, #3b0694);
    --shadow: 0 1px 2px rgba(40, 0, 60, .06), 0 8px 24px -12px rgba(40, 0, 60, .18);
    color-scheme: light;
}

@media (prefers-color-scheme: dark) {
    :root:not([data-theme="light"]) {
        color-scheme: dark;
        --bg: #120a17;
        --surface: #1c1223;
        --ink: #f4eef7;
        --muted: #a99bb2;
        --line: #2e2136;
        --brand: #d49bff;
        --shadow: 0 1px 2px rgba(0, 0, 0, .3), 0 8px 24px -12px rgba(0, 0, 0, .6);
    }
}

:root[data-theme="dark"] {
    color-scheme: dark;
    --bg: #120a17;
    --surface: #1c1223;
    --ink: #f4eef7;
    --muted: #a99bb2;
    --line: #2e2136;
    --brand: #d49bff;
    --shadow: 0 1px 2px rgba(0, 0, 0, .3), 0 8px 24px -12px rgba(0, 0, 0, .6);
}

*, *::before, *::after { box-sizing: border-box; }
[hidden] { display: none !important; }
html { scroll-behavior: smooth; }

body {
    margin: 0;
    background: var(--bg);
    color: var(--ink);
    font-family: 'Open Sans', system-ui, sans-serif;
    line-height: 1.6;
}

a { color: inherit; text-decoration: none; }
.wrap { max-width: 1200px; margin: 0 auto; padding: 0 16px; }
h1, h2, h3, .logo, .stat b { font-family: 'Bricolage Grotesque', 'Open Sans', sans-serif; }

/* ---------- Header / hero ---------- */
.hero {
    background: var(--grad);
    color: #fff;
    padding: 18px 0 64px;
    position: relative;
    overflow: hidden;
    isolation: isolate;
}

.hero::before, .hero::after {
    content: "";
    position: absolute;
    z-index: -1;
    border-radius: 50%;
    filter: blur(60px);
    opacity: .55;
    animation: drift 14s ease-in-out infinite alternate;
}
.hero::before { width: 420px; height: 420px; background: #ff3d7f; top: -160px; right: 8%; }
.hero::after { width: 360px; height: 360px; background: #2b0cff; bottom: -200px; left: -80px; animation-delay: -7s; }

@keyframes drift { to { transform: translate(60px, 40px) scale(1.15); } }

.nav { display: flex; align-items: center; justify-content: space-between; gap: 12px; }
.logo { font-size: 22px; font-weight: 800; letter-spacing: -.02em; display: flex; align-items: center; gap: 8px; }
.logo small { font-size: .62em; font-weight: 600; opacity: .7; margin-left: 1px; align-self: flex-end; padding-bottom: .28em; }
.mark {
    width: 34px;
    height: 34px;
    border-radius: 11px;
    display: grid;
    place-items: center;
    background: rgba(255, 255, 255, .18);
    border: 1px solid rgba(255, 255, 255, .35);
    box-shadow: inset 0 1px 0 rgba(255, 255, 255, .35), 0 6px 16px -6px rgba(0, 0, 0, .35);
    transform: rotate(-6deg);
    transition: transform .2s;
}
.mark svg { width: 18px; height: 18px; fill: #fff; }
.logo:hover .mark { transform: rotate(0) scale(1.06); }
footer .mark { background: var(--grad); border: 0; }
.logo { gap: 0; }
.logo .mark { margin-right: 10px; }
.nav-links { display: flex; gap: 6px; font-size: 14px; font-weight: 600; }
.nav-links a { padding: 6px 12px; border-radius: 999px; }
.nav-links a:hover, .nav-links a[aria-current] { background: rgba(255, 255, 255, .18); }

.hero h1 {
    font-size: clamp(34px, 6.5vw, 66px);
    line-height: 1;
    letter-spacing: -.035em;
    margin: 56px 0 16px;
    max-width: 14ch;
}
.hero h1 em { font-style: normal; background: linear-gradient(90deg, #fff, #ffc3dc); -webkit-background-clip: text; background-clip: text; color: transparent; }
.hero p { max-width: 56ch; margin: 0; font-size: 17px; opacity: .92; }

/* theme toggle */
.theme-btn {
    width: 36px;
    height: 36px;
    margin-left: 4px;
    border-radius: 999px;
    border: 1px solid rgba(255, 255, 255, .35);
    background: rgba(255, 255, 255, .16);
    color: #fff;
    display: grid;
    place-items: center;
    cursor: pointer;
    flex: none;
    transition: background .2s, transform .3s;
}
.theme-btn:hover { background: rgba(255, 255, 255, .28); transform: rotate(20deg); }
.theme-btn:focus-visible { outline: 2px solid #fff; outline-offset: 2px; }
.theme-btn svg { width: 18px; height: 18px; fill: none; stroke: currentColor; stroke-width: 2; stroke-linecap: round; }
.theme-btn .moon, [data-theme="dark"] .theme-btn .sun { display: none; }
[data-theme="dark"] .theme-btn .moon { display: block; }
.nav-links { align-items: center; }

/* floating app tiles, desktop only */
.hero .wrap { position: relative; }
.collage {
    position: absolute;
    right: 24px;
    top: 90px;
    display: grid;
    grid-template-columns: repeat(3, 104px);
    gap: 16px;
    transform: rotate(-8deg);
}
.collage span {
    height: 104px;
    border-radius: 26px;
    display: grid;
    place-items: center;
    font-size: 46px;
    background: var(--g);
    border: 2px solid rgba(255, 255, 255, .35);
    box-shadow: 0 18px 40px -14px rgba(0, 0, 0, .5);
    animation: bob 5s ease-in-out infinite alternate;
}
.collage span:nth-child(3n+2) { transform: translateY(34px); animation-delay: -1.6s; }
.collage span:nth-child(3n) { animation-delay: -3.2s; }
@keyframes bob { to { translate: 0 -10px; } }
@media (max-width: 1060px) { .collage { display: none; } }

/* small hero on inner pages */
.hero.small { padding-bottom: 48px; }
.hero.small h1 { font-size: clamp(30px, 5vw, 48px); margin-top: 40px; max-width: none; }
.crumbs { font-size: 13px; opacity: .8; margin-top: 36px; }
.crumbs a:hover { text-decoration: underline; }
.hero.small .crumbs + h1 { margin-top: 6px; }

.stats { display: flex; flex-wrap: wrap; gap: 10px; margin-top: 26px; padding: 0; list-style: none; }
.stat {
    background: rgba(255, 255, 255, .14);
    border: 1px solid rgba(255, 255, 255, .25);
    backdrop-filter: blur(6px);
    padding: 10px 16px;
    border-radius: 14px;
    font-size: 13px;
    line-height: 1.2;
}
.stat b { display: block; font-size: 22px; }

/* ---------- Toolbar ---------- */
.toolbar {
    border-bottom: 1px solid var(--line);
}
.toolbar .wrap { display: flex; flex-wrap: wrap; gap: 10px; align-items: center; padding-top: 12px; padding-bottom: 12px; }
.chips { display: flex; gap: 6px; flex-wrap: wrap; }
.chip {
    font: 600 14px 'Open Sans', sans-serif;
    border: 1px solid var(--line);
    background: var(--surface);
    color: var(--ink);
    padding: 7px 14px;
    border-radius: 999px;
    cursor: pointer;
}
.chip:hover { border-color: var(--brand); }
.chip[aria-pressed="true"] { background: var(--ink); color: var(--bg); border-color: var(--ink); }
.search {
    flex: 1 1 200px;
    min-width: 0;
    font: 16px 'Open Sans', sans-serif; /* 16px stops iOS zoom on focus */
    padding: 9px 14px 9px 38px;
    border-radius: 12px;
    border: 1px solid var(--line);
    background: var(--surface) url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='16' height='16' fill='none' stroke='%23998' stroke-width='2'%3E%3Ccircle cx='7' cy='7' r='5'/%3E%3Cpath d='m11 11 4 4'/%3E%3C/svg%3E") no-repeat 13px center;
    color: var(--ink);
}
.search:focus, .chip:focus-visible, .card:focus-visible, .btn:focus-visible { outline: 2px solid var(--hot); outline-offset: 2px; }

/* ---------- Home sections ---------- */
main { padding: 28px 0 48px; }
.section-title { font-size: 28px; letter-spacing: -.02em; margin: 36px 0 16px; display: flex; flex-wrap: wrap; align-items: baseline; gap: 4px 12px; }
.section-title small { font: 600 13px 'Open Sans', sans-serif; color: var(--muted); }
.section-title .count { font: 700 12px 'Open Sans', sans-serif; background: var(--line); color: var(--muted); padding: 2px 9px; border-radius: 999px; }

.btn {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    font: 700 15px 'Open Sans', sans-serif;
    padding: 11px 20px;
    border-radius: 12px;
    background: var(--grad);
    color: #fff;
    border: 0;
    cursor: pointer;
    transition: transform .15s, box-shadow .15s;
}
.btn:hover { transform: translateY(-2px); box-shadow: 0 10px 24px -10px rgba(242, 0, 81, .6); }
.btn.ghost { background: transparent; color: var(--ink); border: 1px solid var(--line); }
.btn.ghost:hover { border-color: var(--brand); box-shadow: none; }

/* Cards */
.grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(250px, 1fr)); gap: 18px; }
.card {
    display: flex;
    flex-direction: column;
    background: var(--surface);
    border: 1px solid var(--line);
    border-radius: 18px;
    overflow: hidden;
    box-shadow: var(--shadow);
    transition: transform .25s, box-shadow .25s, border-color .25s;
    animation: rise .5s both;
}
@keyframes rise { from { opacity: 0; transform: translateY(12px); } }
.card:hover { transform: translateY(-5px); border-color: transparent; box-shadow: 0 20px 44px -18px rgba(101, 0, 141, .5); }

.thumb {
    height: 130px;
    display: grid;
    place-items: center;
    font-size: 56px;
    color: #fff;
    position: relative;
    background: var(--g, var(--grad));
    overflow: hidden;
}
.thumb::before {
    content: "";
    position: absolute;
    inset: 0;
    background: radial-gradient(circle at 85% 110%, rgba(255, 255, 255, .35), transparent 45%),
        radial-gradient(rgba(255, 255, 255, .18) 1px, transparent 1px) 0 0 / 14px 14px;
}
.thumb > :last-child, .thumb { text-shadow: 0 4px 16px rgba(0, 0, 0, .2); }
.card:hover .thumb { font-size: 62px; transition: font-size .25s; }
.thumb .tag {
    position: absolute;
    top: 10px;
    left: 10px;
    font: 700 11px 'Open Sans', sans-serif;
    text-transform: uppercase;
    letter-spacing: .06em;
    background: rgba(255, 255, 255, .92);
    color: #3b0694;
    padding: 3px 9px;
    border-radius: 999px;
    text-shadow: none;
}
.thumb .hot { left: auto; right: 10px; background: rgba(0, 0, 0, .25); color: #fff; }

.body { padding: 14px 16px 16px; display: flex; flex-direction: column; flex: 1; }
.body h3 { margin: 0 0 4px; font-size: 19px; letter-spacing: -.01em; line-height: 1.25; }
.body p { margin: 0 0 14px; color: var(--muted); font-size: 14px; flex: 1; }
.go { font-weight: 700; font-size: 14px; color: var(--brand); display: inline-flex; gap: 6px; }
.go::after { content: "→"; transition: transform .2s; }
.card:hover .go::after { transform: translateX(4px); }

.grid-3 { grid-template-columns: repeat(auto-fill, minmax(300px, 1fr)); }
.kao { font-size: 34px; white-space: nowrap; }
.g1 { --g: linear-gradient(135deg, #ff6b6b, #f20051); }
.g2 { --g: linear-gradient(135deg, #f7971e, #ffd200); }
.g3 { --g: linear-gradient(135deg, #11998e, #38ef7d); }
.g4 { --g: linear-gradient(135deg, #4776e6, #8e54e9); }
.g5 { --g: linear-gradient(135deg, #c10074, #3b0694); }
.g6 { --g: linear-gradient(135deg, #00c6ff, #0072ff); }

.empty { display: none; text-align: center; color: var(--muted); padding: 40px 0; }

/* ---------- Inner pages ---------- */
.page { max-width: 780px; margin: -32px auto 0; position: relative; padding: 0 16px; }
.panel {
    background: var(--surface);
    border: 1px solid var(--line);
    border-radius: 22px;
    box-shadow: var(--shadow);
    padding: clamp(20px, 5vw, 44px);
}
.prose h2 { font-size: 22px; letter-spacing: -.01em; margin: 32px 0 8px; padding-top: 4px; }
.prose h2:first-child { margin-top: 0; }
.prose p, .prose li { color: var(--muted); }
.prose strong, .prose b { color: var(--ink); }
.prose a { color: var(--brand); text-decoration: underline; text-underline-offset: 3px; overflow-wrap: anywhere; }
.prose ul { padding-left: 20px; }
.note { background: color-mix(in srgb, var(--hot) 8%, var(--surface)); border-left: 3px solid var(--hot); padding: 14px 16px; border-radius: 10px; }

.toc { display: flex; flex-wrap: wrap; gap: 6px; margin-bottom: 28px; padding-bottom: 22px; border-bottom: 1px solid var(--line); }
.toc a { font-size: 13px; font-weight: 600; padding: 5px 11px; border-radius: 999px; border: 1px solid var(--line); color: var(--muted); }
.toc a:hover { color: var(--brand); border-color: var(--brand); }

.cards2 { display: grid; grid-template-columns: repeat(auto-fit, minmax(240px, 1fr)); gap: 16px; }
.contact-card { display: flex; flex-direction: column; gap: 8px; align-items: flex-start; }
.contact-card .ico { width: 52px; height: 52px; border-radius: 14px; display: grid; place-items: center; font-size: 26px; color: #fff; }
.contact-card h2 { margin: 6px 0 0; font-size: 22px; }
.contact-card p { margin: 0 0 8px; color: var(--muted); font-size: 15px; }
.btn.tg { background: #229ed9; }

.features { display: grid; grid-template-columns: repeat(auto-fit, minmax(160px, 1fr)); gap: 12px; margin: 24px 0; padding: 0; list-style: none; }
.features li { border: 1px solid var(--line); border-radius: 14px; padding: 14px; font-size: 14px; color: var(--muted); }
.features b { display: block; font-size: 24px; margin-bottom: 4px; }

.center { text-align: center; }

/* ---------- Footer ---------- */
footer { border-top: 1px solid var(--line); margin-top: 56px; padding: 40px 0 28px; font-size: 14px; color: var(--muted); }
.foot-grid { display: grid; grid-template-columns: 1.4fr repeat(3, 1fr); gap: 28px; }
.foot-grid .about-col p { margin: 8px 0 0; max-width: 34ch; }
footer .logo { color: var(--ink); font-size: 19px; }
footer h4 { color: var(--ink); margin: 0 0 10px; font: 700 14px 'Open Sans', sans-serif; }
footer ul { list-style: none; margin: 0; padding: 0; display: grid; gap: 7px; }
footer ul a:hover { color: var(--brand); text-decoration: underline; }
.copy { margin-top: 32px; padding-top: 18px; border-top: 1px solid var(--line); text-align: center; }

@media (max-width: 860px) { .foot-grid { grid-template-columns: 1fr 1fr; } }
body { -webkit-tap-highlight-color: transparent; }
.contact-card .btn { max-width: 100%; overflow-wrap: anywhere; }

/* touch screens: no sticky hover lift after tap */
@media (hover: none) {
    .card:hover, .btn:hover { transform: none; }
    .card:hover .thumb { font-size: inherit; }
    .card:active { transform: scale(.98); }
}

@media (max-width: 640px) {
    .nav-links a:not(.keep) { display: none; }
    /* two-row nav: logo + toggle on top, page links below */
    .nav { flex-wrap: wrap; row-gap: 10px; }
    .nav-links { width: 100%; gap: 4px; font-size: 13px; justify-content: space-between; background: rgba(255, 255, 255, .1); border: 1px solid rgba(255, 255, 255, .18); border-radius: 999px; padding: 3px; }
    .nav-links a { white-space: nowrap; text-align: center; flex: 1 1 auto; padding: 7px 6px; }
    .theme-btn { position: absolute; top: 0; right: 16px; }
    .logo { font-size: 17px; }
    .hero .mark { width: 30px; height: 30px; border-radius: 10px; }
    .logo .mark { margin-right: 8px; }
    .theme-btn { width: 34px; height: 34px; }
    .logo small { display: none; }

    .hero { padding-bottom: 40px; }
    .hero h1 { margin-top: 32px; font-size: 36px; }
    .hero p { font-size: 16px; }
    .stats { display: grid; grid-template-columns: 1fr 1fr; gap: 8px; }
    .stat { padding: 10px 12px; }
    .stat b { font-size: 20px; }
    .hero.small { padding-bottom: 44px; }
    .hero.small h1 { font-size: 30px; }
    .crumbs { margin-top: 24px; }

    /* filter chips: one swipeable row */
    .chips { flex-wrap: nowrap; overflow-x: auto; scrollbar-width: none; margin: 0 -16px; padding: 0 16px; width: calc(100% + 32px); }
    .chips::-webkit-scrollbar { display: none; }
    .chip { flex: none; padding: 8px 14px; }
    .search { flex-basis: 100%; }

    main { padding-top: 20px; }
    .section-title { font-size: 22px; margin: 28px 0 12px; }
    .section-title small { flex-basis: 100%; }
    .kao { font-size: 20px; }

    /* cards become compact rows: more apps per screen */
    .grid { grid-template-columns: 1fr; gap: 10px; }
    .card { flex-direction: row; border-radius: 16px; }
    .thumb { width: 92px; height: auto; min-height: 92px; flex: none; font-size: 38px; }
    .card:hover .thumb { font-size: 38px; }
    .thumb .tag, .thumb .hot { display: none; }
    .body { padding: 12px 14px; justify-content: center; }
    .body h3 { font-size: 16px; }
    .body p { font-size: 13px; margin-bottom: 6px; display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden; }
    .go { font-size: 13px; }

    .page { margin-top: -28px; }
    .prose h2 { font-size: 20px; margin-top: 26px; }
    .toc { flex-wrap: nowrap; overflow-x: auto; scrollbar-width: none; }
    .toc a { flex: none; }
    .features { grid-template-columns: 1fr 1fr; }

    footer { margin-top: 32px; padding-top: 32px; }
    .foot-grid { grid-template-columns: 1fr; gap: 22px; }
    footer ul { gap: 2px; }
    footer ul a { display: block; padding: 6px 0; } /* bigger tap targets */
}

@media (prefers-reduced-motion: reduce) {
    *, *::before, *::after { animation: none !important; transition: none !important; }
    html { scroll-behavior: auto; }
}

.prose a.btn { color: #fff; text-decoration: none; }
.prose a.btn.ghost { color: var(--ink); }

/* ---------- Privacy policy ---------- */
.page-wide { max-width: 1200px; }
.updated { display: inline-block; margin-top: 14px !important; font-size: 13px !important; font-weight: 600; background: rgba(255, 255, 255, .16); border: 1px solid rgba(255, 255, 255, .3); padding: 4px 12px; border-radius: 999px; }
.pol { display: grid; grid-template-columns: 260px 1fr; gap: 24px; align-items: start; }
.pol-toc { position: sticky; top: 20px; margin-top: 56px; background: var(--surface); border: 1px solid var(--line); border-radius: 18px; padding: 16px; box-shadow: var(--shadow); max-height: calc(100vh - 40px); overflow-y: auto; }
.pol-toc h4 { margin: 0 0 8px 8px; font-size: 12px; text-transform: uppercase; letter-spacing: .08em; color: var(--muted); }
.pol-toc nav { display: grid; gap: 2px; }
.pol-toc a { display: flex; gap: 10px; padding: 7px 8px; border-radius: 10px; font-size: 14px; color: var(--muted); line-height: 1.3; }
.pol-toc a span { font: 700 12px 'Bricolage Grotesque', sans-serif; color: var(--muted); opacity: .6; min-width: 18px; padding-top: 1px; }
.pol-toc a:hover { color: var(--ink); background: color-mix(in srgb, var(--brand) 7%, transparent); }
.pol-toc a.on { color: var(--brand); background: color-mix(in srgb, var(--brand) 11%, transparent); font-weight: 600; }
.pol-toc a.on span { color: var(--hot); opacity: 1; }

.glance { list-style: none; margin: 0 0 18px; padding: 0; display: grid; grid-template-columns: repeat(4, 1fr); gap: 12px; }
.glance li { background: var(--surface); border: 1px solid var(--line); border-radius: 16px; padding: 14px; font-size: 13px; color: var(--muted); box-shadow: var(--shadow); line-height: 1.45; }
.glance b { display: block; font-size: 22px; margin-bottom: 6px; }
.glance strong { display: block; color: var(--ink); font-size: 14px; margin-bottom: 2px; }
.glance a { color: var(--brand); text-decoration: underline; }

.pol-intro { padding-bottom: 8px; }
.pol-intro p:first-child { font-size: 17px; color: var(--ink); }
.pol-sec { border-top: 1px solid var(--line); padding-top: 6px; margin-top: 26px; scroll-margin-top: 20px; }
.pol-sec h2 { display: flex; align-items: baseline; gap: 12px; margin-top: 18px; }
.pol-sec .num { font-size: 14px; color: var(--hot); font-weight: 800; }

@media (max-width: 960px) {
    .pol { grid-template-columns: 1fr; }
    .pol-toc { position: static; margin-top: 0; max-height: none; padding: 12px; }
    .pol-toc nav { display: flex; overflow-x: auto; scrollbar-width: none; gap: 6px; }
    .pol-toc nav::-webkit-scrollbar { display: none; }
    .pol-toc a { flex: none; border: 1px solid var(--line); border-radius: 999px; padding: 6px 12px; font-size: 13px; }
    .glance { grid-template-columns: 1fr 1fr; }
}
@media (max-width: 640px) {
    .glance { gap: 8px; }
    .glance li { padding: 12px; }
    .pol-intro p:first-child { font-size: 16px; }
}