/* haoyong.app — shared styles for the generated pages (see site/).
   Design system: black and white minimal with gold accents.
   Space Grotesk for headings, DM Sans for text. Black solid buttons for the
   main action, gold for highlights; gold text is only used on black. */
:root {
  --primary: #0A0A0A; --primary-hover: #262626; --primary-soft: #F5F5F5; --primary-line: #D4D4D4;
  --accent: #F5B301; --accent-hover: #E0A200; --on-accent: #0A0A0A;
  --gold: #F5B301; --gold-soft: #FFF7DB; --gold-line: #F5D77A; --drop-line: #D1D5DB;
  --bg: #FFFFFF; --surface: #FAFAFA; --card: #FFFFFF;
  --fg: #0A0A0A; --fg-2: #4B5563; --fg-3: #6B7280; --border: #E5E7EB;
  --ok: #15803D; --err: #B91C1C; --ring: #0A0A0A; --on-primary: #FFFFFF;
  --font: "DM Sans", "PingFang SC", "Hiragino Sans GB", "Noto Sans SC", "Microsoft YaHei", system-ui, sans-serif;
  --font-display: "Space Grotesk", "PingFang SC", "Hiragino Sans GB", "Noto Sans SC", "Microsoft YaHei", system-ui, sans-serif;
  --ease: cubic-bezier(.2,.8,.2,1);
}
@media (prefers-color-scheme: dark) {
  :root {
    --primary: #F5B301; --primary-hover: #FFC933; --primary-soft: #1A1A1A; --primary-line: #3A3A3A;
    --accent: #F5B301; --accent-hover: #FFC933; --on-accent: #000000;
    --gold: #F5B301; --gold-soft: #1F1700; --gold-line: #5C4400; --drop-line: #404040;
    --bg: #000000; --surface: #0A0A0A; --card: #0F0F0F;
    --fg: #FAFAFA; --fg-2: #D4D4D4; --fg-3: #A3A3A3; --border: #262626;
    --ok: #4ADE80; --err: #F87171; --ring: #F5B301; --on-primary: #000000;
  }
}
* { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; scroll-behavior: smooth; }
body { margin: 0; background: var(--bg); color: var(--fg); font: 400 16px/1.6 var(--font); -webkit-font-smoothing: antialiased; }
a { color: var(--fg); text-underline-offset: 3px; text-decoration-color: var(--gold); }
:focus-visible { outline: 2px solid var(--ring); outline-offset: 2px; border-radius: 6px; }
[hidden] { display: none !important; }
.sr { position: absolute; width: 1px; height: 1px; overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; }
svg.i { width: 20px; height: 20px; flex: none; stroke: currentColor; fill: none; stroke-width: 2; stroke-linecap: round; stroke-linejoin: round; }
.wrap { max-width: 1120px; margin: 0 auto; padding: 0 16px; }
@media (min-width: 768px) { .wrap { padding: 0 32px; } }

/* buttons */
.btn { display: inline-flex; align-items: center; justify-content: center; gap: 8px; min-height: 44px; padding: 0 20px; border-radius: 10px; border: 1px solid transparent; font: 600 15px var(--font); text-decoration: none; cursor: pointer; transition: background-color .15s var(--ease), border-color .15s var(--ease); white-space: nowrap; }
.btn-primary { background: var(--primary); color: var(--on-primary); }
.btn-primary:hover { background: var(--primary-hover); }
.btn-accent { background: var(--accent); color: var(--on-accent); }
.btn-accent:hover { background: var(--accent-hover); }
.btn-ghost { background: transparent; color: var(--fg); border-color: var(--border); }
.btn-ghost:hover { border-color: var(--fg-3); }
.btn.sm { min-height: 36px; padding: 0 12px; font-size: 14px; }
.btn[disabled] { opacity: .55; cursor: not-allowed; }

/* header */
header.top { position: sticky; top: 0; z-index: 10; background: color-mix(in srgb, var(--bg) 92%, transparent); backdrop-filter: saturate(1.4) blur(8px); border-bottom: 1px solid var(--border); }
.bar { display: flex; align-items: center; gap: 20px; height: 64px; }
.brand { display: flex; align-items: center; gap: 10px; text-decoration: none; color: var(--fg); font: 700 18px var(--font-display); letter-spacing: -.02em; }
.brand small { font-weight: 500; color: var(--fg-3); font-size: 14px; }
.logo { width: 32px; height: 32px; display: block; }
nav.links { display: none; gap: 2px; }
nav.links a { text-decoration: none; color: var(--fg-2); font-size: 15px; padding: 8px 12px; border-radius: 8px; }
nav.links a:hover, nav.links a[aria-current="page"] { color: var(--fg); background: var(--surface); }
@media (min-width: 960px) { nav.links { display: flex; } }
.bar-right { margin-left: auto; display: flex; align-items: center; gap: 10px; }
.lang-link { font-size: 14px; font-weight: 600; color: var(--fg-2); text-decoration: none; padding: 8px 10px; border: 1px solid var(--border); border-radius: 8px; }
.lang-link:hover { color: var(--fg); border-color: var(--fg-3); }

/* hero with the tool */
/* Centered hero: short headline, then one big upload box in the middle. */
.hero { display: flex; flex-direction: column; align-items: center; text-align: center; padding-top: 40px; padding-bottom: 56px; }
@media (min-width: 900px) { .hero { padding-top: 64px; padding-bottom: 72px; } }
.hero h1 { font-size: clamp(30px, 4.6vw, 46px); }
.hero h1 .hl { margin-left: .25em; }
:lang(zh) .hero h1 .hl { margin-left: 0; }
.hero .lede { margin: 0 auto 28px; }
.hero .tool { width: 100%; max-width: 860px; text-align: left; }
.hero .checks { margin-top: 24px; display: flex; flex-wrap: wrap; justify-content: center; gap: 8px 24px; }
.hero .drop { min-height: 300px; padding: 48px 16px; gap: 10px; border-width: 2px; }
.hero .drop .up { width: 64px; height: 64px; border-radius: 16px; }
.hero .drop .up svg { width: 28px; height: 28px; }
.hero .drop b { font-size: 20px; }
@media (max-width: 600px) { .hero .drop { min-height: 220px; } .hero h1 .hl { display: block; margin-left: 0; } }
.tiers .card { display: flex; flex-direction: column; gap: 4px; }
.tiers .name { font-weight: 600; color: var(--fg-2); }
.tiers .price { font-size: 28px; font-weight: 700; letter-spacing: -.02em; }
.tiers .free .price { color: var(--fg); }
.pill { display: inline-flex; align-items: center; gap: 8px; padding: 6px 12px; border-radius: 999px; background: var(--gold-soft); border: 1px solid var(--gold-line); color: var(--fg); font-size: 13px; font-weight: 600; }
h1, h2, h3, .plan .price, .tiers .price { font-family: var(--font-display); }
h1 { font-size: clamp(32px, 5.5vw, 52px); line-height: 1.15; letter-spacing: -.035em; font-weight: 700; margin: 16px 0 14px; text-wrap: balance; }
/* Gold marker under the key words; the text itself stays high-contrast. */
h1 .hl { color: var(--fg); background: linear-gradient(transparent 62%, var(--gold) 62%, var(--gold) 92%, transparent 92%); padding: 0 .08em; -webkit-box-decoration-break: clone; box-decoration-break: clone; }
.lede { font-size: 18px; color: var(--fg-2); margin: 0 0 20px; max-width: 34em; }
.checks { list-style: none; padding: 0; margin: 0; display: grid; gap: 8px; color: var(--fg-2); font-size: 15px; }
.checks li { display: flex; gap: 8px; align-items: flex-start; }
.checks svg { width: 18px; height: 18px; color: var(--fg); background: var(--gold); border-radius: 50%; padding: 3px; stroke-width: 3; margin-top: 3px; }

/* sections */
section { padding: 72px 0; }
section.alt { background: var(--surface); border-top: 1px solid var(--border); border-bottom: 1px solid var(--border); }
.kicker { display: inline-flex; align-items: center; gap: 8px; font-size: 13px; font-weight: 600; color: var(--fg-2); letter-spacing: .04em; text-transform: uppercase; }
h2 { font-size: clamp(26px, 3.6vw, 36px); line-height: 1.2; letter-spacing: -.025em; margin: 8px 0 12px; text-wrap: balance; }
h3 { font-size: 18px; font-weight: 600; margin: 0 0 6px; }
.sub { color: var(--fg-2); font-size: 17px; margin: 0 0 32px; max-width: 42em; }
.grid3 { display: grid; gap: 16px; }
@media (min-width: 768px) { .grid3 { grid-template-columns: repeat(3, 1fr); gap: 20px; } }
.grid2 { display: grid; gap: 16px; }
@media (min-width: 768px) { .grid2 { grid-template-columns: repeat(2, 1fr); gap: 20px; } }
.card { background: var(--card); border: 1px solid var(--border); border-radius: 16px; padding: 24px; }
.card p { color: var(--fg-2); margin: 0; font-size: 15px; }
.kicker::before { content: ""; width: 8px; height: 8px; border-radius: 2px; background: var(--gold); }
.ico { width: 44px; height: 44px; border-radius: 10px; background: var(--gold-soft); color: var(--fg); display: grid; place-items: center; margin-bottom: 14px; }
.step-n { width: 32px; height: 32px; border-radius: 50%; background: var(--gold); color: var(--on-accent); font-family: var(--font-display); display: grid; place-items: center; font-weight: 700; font-size: 14px; margin-bottom: 12px; }
ol.howto { margin: 0; padding-left: 1.3em; color: var(--fg-2); display: grid; gap: 8px; }
pre.srt { margin: 0; padding: 16px; border-radius: 12px; background: var(--surface); border: 1px solid var(--border); font: 14px/1.6 ui-monospace, SFMono-Regular, Menlo, monospace; white-space: pre-wrap; color: var(--fg); }
.note { font-size: 14px; color: var(--fg-3); margin: 16px 0 0; }

/* pricing */
.plans { display: grid; gap: 20px; }
@media (min-width: 768px) { .plans { grid-template-columns: repeat(3, 1fr); } }
.plan { position: relative; display: flex; flex-direction: column; gap: 4px; }
.plan.pop { border: 2px solid var(--primary); }
.plan .tag { position: absolute; top: -12px; left: 24px; background: var(--gold); color: var(--on-accent); font-size: 12px; font-weight: 600; padding: 3px 10px; border-radius: 999px; }
.plan .name { font-weight: 600; color: var(--fg-2); }
.plan .price { font-size: 40px; font-weight: 700; letter-spacing: -.03em; line-height: 1.1; margin-top: 6px; }
.plan .unit { font-size: 14px; color: var(--fg-3); }

/* faq */
.faq { max-width: 780px; }
details { border-bottom: 1px solid var(--border); }
details:first-of-type { border-top: 1px solid var(--border); }
summary { cursor: pointer; list-style: none; display: flex; justify-content: space-between; align-items: center; gap: 16px; min-height: 56px; padding: 12px 0; font-weight: 600; }
summary::-webkit-details-marker { display: none; }
summary svg { color: var(--fg-3); transition: transform .2s var(--ease); }
details[open] summary svg { transform: rotate(180deg); }
details p { margin: 0 0 18px; color: var(--fg-2); font-size: 15px; }

/* tools hub */
.toolcard { display: flex; flex-direction: column; gap: 10px; }
.toolcard .state { align-self: flex-start; font-size: 12px; font-weight: 600; padding: 2px 10px; border-radius: 999px; border: 1px solid var(--border); color: var(--fg-2); }
.toolcard .state.live { background: var(--gold); color: var(--on-accent); border-color: var(--gold); }
.toolcard .votes { margin-top: auto; }
.vote-form { display: grid; gap: 12px; }
.chips { display: flex; flex-wrap: wrap; gap: 8px; }
.chip { position: relative; }
.chip input { position: absolute; inset: 0; opacity: 0; margin: 0; cursor: pointer; }
.chip > span { display: inline-flex; align-items: center; min-height: 40px; padding: 0 14px; border: 1px solid var(--border); border-radius: 999px; font-size: 14px; color: var(--fg-2); background: var(--bg); }
.chip input:checked + span { background: var(--gold-soft); border-color: var(--fg); color: var(--fg); font-weight: 600; }
.chip input:focus-visible + span { outline: 2px solid var(--ring); outline-offset: 2px; }

/* footer */
footer { border-top: 1px solid var(--border); padding: 40px 0 56px; font-size: 14px; color: var(--fg-3); }
.foot { display: grid; gap: 24px; }
@media (min-width: 768px) { .foot { grid-template-columns: 2fr 1fr 1fr; } }
.foot h4 { margin: 0 0 8px; font-size: 14px; color: var(--fg); }
.foot ul { list-style: none; margin: 0; padding: 0; display: grid; gap: 6px; }
.foot a { color: var(--fg-2); text-decoration: none; }
.foot a:hover { color: var(--fg); text-decoration: underline; }

/* ---------- the tool widget ---------- */
.tool { background: var(--card); border: 1px solid var(--border); border-radius: 16px; padding: 20px; display: grid; gap: 16px; }
@media (min-width: 768px) { .tool { padding: 24px; } }
.tool-head { display: flex; justify-content: space-between; align-items: center; gap: 12px; flex-wrap: wrap; font-size: 14px; color: var(--fg-2); }
.tool-head strong { color: var(--fg); }
.drop { position: relative; display: grid; place-items: center; gap: 6px; text-align: center; padding: 36px 16px; border: 1.5px dashed var(--drop-line); border-radius: 12px; cursor: pointer; transition: border-color .15s, background-color .15s; }
.drop:hover, .drop.over { border-color: var(--gold); background: var(--gold-soft); }
.drop input { position: absolute; width: 1px; height: 1px; opacity: 0; }
.drop .up { width: 48px; height: 48px; border-radius: 12px; background: var(--gold); color: var(--on-accent); display: grid; place-items: center; }
.drop b { font-size: 16px; }
.drop small { color: var(--fg-3); }
.yt-tip { border: 1px solid var(--border); border-radius: 12px; padding: 0 14px; background: var(--surface); }
.yt-tip summary { min-height: 48px; padding: 10px 0; gap: 10px; justify-content: flex-start; font-weight: 600; font-size: 15px; border: 0; }
.yt-tip summary > span { flex: 1; }
.yt-tip summary svg:first-child { color: var(--fg-3); }
.yt-tip ol { margin: 0 0 8px; padding-left: 1.3em; display: grid; gap: 6px; color: var(--fg-2); font-size: 15px; }
.yt-tip p { margin: 0 0 14px; }
.yt-tip:first-of-type { border-top: 1px solid var(--border); }
.pbar { height: 6px; background: var(--surface); border-radius: 6px; overflow: hidden; }
.pbar i { display: block; height: 100%; width: 0; background: var(--gold); transition: width .2s; }
label.f { display: grid; gap: 6px; font-size: 14px; font-weight: 600; }
.tool select, .tool input[type=email], .vote-form input[type=email] { height: 46px; padding: 0 14px; font: 16px var(--font); color: var(--fg); background: var(--bg); border: 1px solid var(--border); border-radius: 10px; width: 100%; }
.tool select:focus, .tool input[type=email]:focus, .vote-form input[type=email]:focus { outline: none; border-color: var(--ring); box-shadow: 0 0 0 3px color-mix(in srgb, var(--ring) 25%, transparent); }
.lanes { display: grid; gap: 10px; }
@media (min-width: 560px) { .lanes { grid-template-columns: 1fr 1fr; } }
.lane { position: relative; display: grid; gap: 4px; padding: 14px; border: 1px solid var(--border); border-radius: 12px; cursor: pointer; }
.lane input { position: absolute; opacity: 0; }
.lane:has(input:checked) { border: 2px solid var(--fg); padding: 13px; background: var(--gold-soft); }
.lane:has(input:disabled) { opacity: .55; cursor: not-allowed; }
.lane:has(input:focus-visible) { outline: 2px solid var(--ring); outline-offset: 2px; }
.lane span { font-size: 14px; color: var(--fg-2); }
.row { display: flex; flex-wrap: wrap; gap: 10px; align-items: center; }
.msg { margin: 0; font-size: 14px; }
.msg.err { color: var(--err); }
.msg.ok { color: var(--ok); }
.muted { color: var(--fg-3); font-size: 14px; }
.jobs { display: grid; gap: 8px; }
.job { display: grid; grid-template-columns: 1fr auto; gap: 4px 12px; align-items: center; padding: 12px 14px; border: 1px solid var(--border); border-radius: 10px; }
.job .nm { font-weight: 600; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.badge { display: inline-block; padding: 1px 8px; border-radius: 999px; font-size: 12px; font-weight: 600; background: var(--surface); color: var(--fg-2); border: 1px solid var(--border); }
.badge.done { color: var(--ok); }
.badge.failed, .badge.expired { color: var(--err); }
.acts { display: flex; gap: 6px; }

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