@font-face {
  font-family: "Inter";
  font-style: normal;
  font-weight: 100 900;
  font-display: swap;
  src: url("vendor/inter-var.woff2") format("woff2-variations");
}

:root {
  --bg: #fafbfd;
  --bg2: #f1f4f9;
  --card: #ffffff;
  --text: #0c1220;
  --muted: #55607388;
  --muted-solid: #556073;
  --line: #e5e9f2;
  --accent: #3b5bfd;
  --accent-2: #7c3aed;
  --accent-ink: #ffffff;
  --ok: #0d9f6e;
  --warn: #c2410c;
  --radius: 16px;
  --shadow-sm: 0 1px 2px rgba(12, 18, 32, 0.05);
  --shadow: 0 1px 2px rgba(12, 18, 32, 0.04), 0 12px 40px rgba(12, 18, 32, 0.08);
  --shadow-lg: 0 2px 4px rgba(12, 18, 32, 0.04), 0 24px 64px rgba(59, 91, 253, 0.12);
}
@media (prefers-color-scheme: dark) {
  :root {
    --bg: #0a0d14;
    --bg2: #0e1220;
    --card: #131826;
    --text: #eef1f8;
    --muted: #93a0b888;
    --muted-solid: #93a0b8;
    --line: #212a3d;
    --accent: #6884ff;
    --accent-2: #a78bfa;
    --accent-ink: #0a0d14;
    --ok: #2bd396;
    --warn: #fb923c;
    --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.4);
    --shadow: 0 1px 2px rgba(0, 0, 0, 0.4), 0 12px 40px rgba(0, 0, 0, 0.4);
    --shadow-lg: 0 2px 4px rgba(0, 0, 0, 0.4), 0 24px 64px rgba(0, 0, 0, 0.5);
  }
}
* { box-sizing: border-box; margin: 0; padding: 0; }
html { -webkit-text-size-adjust: 100%; scroll-behavior: smooth; }
body {
  font-family: "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.6;
  font-feature-settings: "cv02", "cv03", "cv11";
}
.wrap { max-width: 1080px; margin: 0 auto; padding: 0 24px; }

/* ---------- header ---------- */
header {
  position: sticky; top: 0; z-index: 50;
  background: color-mix(in srgb, var(--bg) 82%, transparent);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  border-bottom: 1px solid var(--line);
}
.header-inner { display: flex; align-items: center; justify-content: space-between; gap: 16px; height: 62px; }
.logo {
  font-weight: 800; font-size: 1.2rem; letter-spacing: -0.03em;
  text-decoration: none; color: var(--text); display: flex; align-items: center; gap: 8px;
}
.logo span { color: var(--accent); }
.logo-mark {
  width: 28px; height: 28px; border-radius: 8px; flex: 0 0 28px;
  background: linear-gradient(135deg, var(--accent), var(--accent-2));
  display: flex; align-items: center; justify-content: center;
  color: #fff; font-size: 0.95rem;
}
.nav { display: flex; align-items: center; gap: 22px; }
.nav a { font-size: 0.88rem; font-weight: 500; color: var(--muted-solid); text-decoration: none; }
.nav a:hover { color: var(--text); }
.nav .nav-cta {
  background: var(--text); color: var(--bg); padding: 8px 16px; border-radius: 10px; font-weight: 600;
}
.nav .nav-cta:hover { color: var(--bg); opacity: 0.85; }
.trust { font-size: 0.8rem; color: var(--muted-solid); }
@media (max-width: 720px) { .nav a:not(.nav-cta) { display: none; } .trust { display: none; } }

/* ---------- hero ---------- */
.hero { text-align: center; padding: 72px 0 16px; position: relative; }
.hero::before {
  content: ""; position: absolute; inset: -62px 0 auto 0; height: 480px; z-index: -1;
  background:
    radial-gradient(600px 260px at 30% 0%, color-mix(in srgb, var(--accent) 9%, transparent), transparent 70%),
    radial-gradient(600px 260px at 70% 0%, color-mix(in srgb, var(--accent-2) 8%, transparent), transparent 70%);
}
.eyebrow {
  display: inline-flex; align-items: center; gap: 8px;
  font-size: 0.78rem; font-weight: 600; letter-spacing: 0.02em;
  color: var(--accent); background: color-mix(in srgb, var(--accent) 9%, transparent);
  border: 1px solid color-mix(in srgb, var(--accent) 22%, transparent);
  padding: 6px 14px; border-radius: 999px; margin-bottom: 20px;
}
.hero h1 {
  font-size: clamp(2rem, 5.4vw, 3.4rem); letter-spacing: -0.04em; line-height: 1.08;
  font-weight: 800; max-width: 820px; margin: 0 auto;
}
.hero h1 em {
  font-style: normal;
  background: linear-gradient(90deg, var(--accent), var(--accent-2));
  -webkit-background-clip: text; background-clip: text; color: transparent;
}
.hero p.sub {
  color: var(--muted-solid); max-width: 640px; margin: 18px auto 0;
  font-size: clamp(1rem, 2vw, 1.13rem); line-height: 1.65;
}
.stats { display: flex; justify-content: center; gap: 36px; margin-top: 30px; flex-wrap: wrap; }
.stat { text-align: center; }
.stat b { display: block; font-size: 1.35rem; font-weight: 800; letter-spacing: -0.02em; }
.stat span { font-size: 0.78rem; color: var(--muted-solid); }

/* ---------- tool card ---------- */
.tool {
  margin: 40px auto 8px; background: var(--card); border: 1px solid var(--line);
  border-radius: 20px; box-shadow: var(--shadow-lg); padding: 28px;
  position: relative;
}
.tool::before {
  content: ""; position: absolute; inset: -1px; border-radius: 21px; z-index: -1;
  background: linear-gradient(120deg, color-mix(in srgb, var(--accent) 35%, transparent), transparent 30%, transparent 70%, color-mix(in srgb, var(--accent-2) 30%, transparent));
  opacity: 0.6;
}
.controls { display: grid; grid-template-columns: 1fr 1.4fr; gap: 16px; margin-bottom: 18px; }
.controls .full { grid-column: 1 / -1; }
.field label {
  display: block; font-size: 0.74rem; font-weight: 600; text-transform: uppercase;
  letter-spacing: 0.05em; color: var(--muted-solid); margin-bottom: 6px;
}
.field input, .field select {
  width: 100%; padding: 11px 13px; font-size: 0.95rem; font-family: inherit;
  border: 1px solid var(--line); border-radius: 11px;
  background: var(--bg); color: var(--text);
  transition: border-color 0.12s, box-shadow 0.12s;
}
.field input:focus, .field select:focus {
  outline: none; border-color: var(--accent);
  box-shadow: 0 0 0 3px color-mix(in srgb, var(--accent) 18%, transparent);
}
.field input:hover:not(:focus), .field select:hover:not(:focus) {
  border-color: color-mix(in srgb, var(--accent) 35%, var(--line));
}
.field select {
  appearance: none; -webkit-appearance: none; cursor: pointer;
  background-image: url("data:image/svg+xml;charset=utf-8,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='8' viewBox='0 0 12 8'%3E%3Cpath d='M1 1.5 6 6.5 11 1.5' fill='none' stroke='%23768' stroke-width='1.8' stroke-linecap='round' stroke-linejoin='round'/%3E%3C/svg%3E");
  background-repeat: no-repeat; background-position: right 13px center;
  padding-right: 38px;
}
.input-wrap { position: relative; }
.input-wrap .unit {
  position: absolute; right: 12px; top: 50%; transform: translateY(-50%);
  font-size: 0.72rem; font-weight: 700; color: var(--muted-solid);
  pointer-events: none; letter-spacing: 0.03em;
}
.input-wrap input { padding-right: 42px; }

/* ---------- magic box ---------- */
.magic {
  display: flex; align-items: center; gap: 10px;
  border: 1px solid color-mix(in srgb, var(--accent) 30%, var(--line));
  background:
    linear-gradient(var(--card), var(--card)) padding-box,
    linear-gradient(120deg, color-mix(in srgb, var(--accent) 55%, transparent), color-mix(in srgb, var(--accent-2) 55%, transparent)) border-box;
  border: 1px solid transparent;
  border-radius: 13px; padding: 8px 8px 8px 14px; margin-bottom: 14px;
  box-shadow: 0 2px 12px color-mix(in srgb, var(--accent) 8%, transparent);
}
.magic .magic-icon { font-size: 1.05rem; }
.magic input {
  flex: 1; min-width: 0; border: none; background: transparent; outline: none;
  font-size: 0.92rem; color: var(--text); font-family: inherit; padding: 6px 0;
}
.magic input::placeholder { color: var(--muted-solid); opacity: 0.75; }
.magic-btn {
  flex: 0 0 auto; padding: 9px 16px; border: none; border-radius: 9px;
  font-weight: 700; font-size: 0.84rem; cursor: pointer; font-family: inherit;
  background: linear-gradient(135deg, var(--accent), color-mix(in srgb, var(--accent) 65%, var(--accent-2)));
  color: #fff;
}
.magic-btn:hover { filter: brightness(1.08); }
.magic-result {
  display: none; font-size: 0.84rem; border-radius: 9px; padding: 9px 13px; margin: -4px 0 14px;
}
.magic-result.ok { background: color-mix(in srgb, var(--ok) 10%, transparent); color: var(--ok); font-weight: 600; }
.magic-result.err { background: color-mix(in srgb, var(--warn) 10%, transparent); color: var(--warn); }

/* ---------- share ---------- */
.share-btn {
  margin-left: auto; padding: 5px 13px; font-size: 0.76rem; font-weight: 700;
  border: 1px solid var(--line); border-radius: 999px; background: var(--card);
  color: var(--muted-solid); cursor: pointer; font-family: inherit;
  text-transform: none; letter-spacing: 0;
  transition: border-color 0.12s, color 0.12s;
}
.share-btn:hover { border-color: var(--accent); color: var(--accent); }
.share-box { max-width: 480px; }
.share-sub { font-size: 0.87rem; color: var(--muted-solid); margin-bottom: 14px; }
.share-row { display: flex; gap: 8px; }
.share-url {
  flex: 1; min-width: 0; padding: 10px 12px; font-size: 0.82rem;
  border: 1px solid var(--line); border-radius: 9px; background: var(--bg); color: var(--text);
  font-family: ui-monospace, SFMono-Regular, Menlo, monospace;
}
.share-qr { text-align: center; margin-top: 16px; }
.share-qr img { border: 8px solid #fff; border-radius: 10px; }
.size-row { display: grid; grid-template-columns: repeat(4, 1fr); gap: 12px; grid-column: 1 / -1; }
#preset-note {
  display: none; grid-column: 1 / -1; font-size: 0.84rem; color: var(--muted-solid);
  background: color-mix(in srgb, var(--accent) 5%, transparent);
  border-left: 3px solid var(--accent); padding: 10px 14px; border-radius: 0 10px 10px 0;
}

/* ---------- drop zone ---------- */
.drop {
  border: 2px dashed color-mix(in srgb, var(--accent) 32%, var(--line));
  border-radius: 16px; padding: 52px 20px; text-align: center; cursor: pointer;
  background: color-mix(in srgb, var(--accent) 2.5%, transparent);
  transition: border-color 0.15s, background 0.15s, transform 0.1s;
}
.drop:hover, .drop.over {
  border-color: var(--accent);
  background: color-mix(in srgb, var(--accent) 6%, transparent);
}
.drop:active { transform: scale(0.995); }
.drop .big { font-size: 2.1rem; }
.drop .main { font-weight: 700; margin-top: 10px; font-size: 1.05rem; letter-spacing: -0.01em; }
.drop .hint { color: var(--muted-solid); font-size: 0.84rem; margin-top: 5px; }
.drop .hint a { color: var(--accent); }

/* ---------- step labels ---------- */
.step-label {
  display: flex; align-items: center; gap: 10px;
  font-size: 0.74rem; font-weight: 700; text-transform: uppercase; letter-spacing: 0.07em;
  color: var(--muted-solid); margin: 0 0 12px;
}
.step-label .n {
  width: 22px; height: 22px; border-radius: 7px; flex: 0 0 22px;
  display: flex; align-items: center; justify-content: center;
  background: color-mix(in srgb, var(--accent) 10%, transparent);
  border: 1px solid color-mix(in srgb, var(--accent) 25%, transparent);
  color: var(--accent); font-size: 0.72rem; font-weight: 800;
}
.controls { margin-bottom: 22px; }
.tool .divider { border: none; border-top: 1px solid var(--line); margin: 22px 0; }

/* ---------- queue + action button ---------- */
.queue { display: none; flex-direction: column; gap: 8px; margin-top: 14px; }
.queue-item {
  display: flex; align-items: center; gap: 12px;
  background: var(--bg); border: 1px solid var(--line); border-radius: 12px;
  padding: 9px 12px;
}
.queue-thumb {
  width: 44px; height: 44px; flex: 0 0 44px; border-radius: 8px; overflow: hidden;
  background: var(--bg2); border: 1px solid var(--line);
  display: flex; align-items: center; justify-content: center; font-size: 1.1rem;
}
.queue-thumb img { width: 100%; height: 100%; object-fit: cover; }
.queue-body { flex: 1; min-width: 0; }
.queue-name { font-weight: 600; font-size: 0.86rem; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.queue-size { font-size: 0.76rem; color: var(--muted-solid); font-variant-numeric: tabular-nums; }
.queue-remove {
  width: 30px; height: 30px; flex: 0 0 30px; border-radius: 8px;
  border: 1px solid var(--line); background: transparent; color: var(--muted-solid);
  font-size: 0.8rem; cursor: pointer; transition: border-color 0.12s, color 0.12s;
}
.queue-remove:hover { border-color: var(--warn); color: var(--warn); }
.btn-go {
  display: block; width: 100%; margin-top: 16px; padding: 15px;
  font-size: 1.02rem; font-weight: 800; letter-spacing: -0.01em;
  border: none; border-radius: 13px; cursor: pointer; font-family: inherit;
  background: linear-gradient(135deg, var(--accent), color-mix(in srgb, var(--accent) 65%, var(--accent-2)));
  color: #fff; box-shadow: 0 6px 20px color-mix(in srgb, var(--accent) 35%, transparent);
  transition: transform 0.1s, filter 0.15s, opacity 0.15s;
}
.btn-go:hover:not(:disabled) { filter: brightness(1.08); transform: translateY(-1px); }
.btn-go:active:not(:disabled) { transform: translateY(0); }
.btn-go:disabled {
  background: var(--bg2); color: var(--muted-solid); box-shadow: none; cursor: not-allowed;
  border: 1px solid var(--line);
}

/* ---------- results ---------- */
#results-section { display: none; margin-top: 22px; }
#results-section h2 {
  font-size: 0.78rem; margin-bottom: 10px; color: var(--muted-solid);
  font-weight: 600; text-transform: uppercase; letter-spacing: 0.05em;
}
.result-card {
  display: flex; align-items: center; gap: 14px;
  background: var(--bg); border: 1px solid var(--line); border-radius: 14px;
  padding: 12px 14px; margin-bottom: 10px;
}
.result-card.failed { border-color: color-mix(in srgb, var(--warn) 50%, var(--line)); }
.result-thumb {
  width: 62px; height: 62px; flex: 0 0 62px; border-radius: 10px; overflow: hidden;
  background: var(--bg2); display: flex; align-items: center; justify-content: center; font-size: 1.4rem;
  border: 1px solid var(--line);
}
.result-thumb img { width: 100%; height: 100%; object-fit: cover; }
.result-body { flex: 1; min-width: 0; }
.result-name { font-weight: 600; font-size: 0.9rem; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.result-status { font-size: 0.83rem; color: var(--muted-solid); }
.result-card:not(.failed) .result-status { color: var(--ok); font-weight: 500; }
.result-card.failed .result-status { color: var(--warn); white-space: normal; }
.result-meta { font-size: 0.78rem; color: var(--muted-solid); font-variant-numeric: tabular-nums; }
.btn {
  display: inline-block; padding: 10px 20px; border-radius: 11px; font-weight: 700; font-size: 0.9rem;
  text-decoration: none; border: none; cursor: pointer; font-family: inherit;
  transition: transform 0.1s, filter 0.15s;
}
.btn-download {
  background: linear-gradient(135deg, var(--accent), color-mix(in srgb, var(--accent) 70%, var(--accent-2)));
  color: #fff; box-shadow: 0 4px 14px color-mix(in srgb, var(--accent) 35%, transparent);
}
.btn-download:hover { filter: brightness(1.08); transform: translateY(-1px); }

.result-thumb.thumb-compare { cursor: zoom-in; }
.btn-zip {
  display: none; margin-left: 12px; padding: 6px 14px; font-size: 0.78rem; font-weight: 700;
  border: 1px solid var(--line); border-radius: 999px; background: var(--card);
  color: var(--accent); cursor: pointer; font-family: inherit;
  transition: border-color 0.12s;
}
.btn-zip:hover { border-color: var(--accent); }
#results-section h2 { display: inline-block; }

/* ---------- before/after compare modal ---------- */
.compare-modal {
  display: none; position: fixed; inset: 0; z-index: 100;
  background: rgba(8, 10, 16, 0.72); backdrop-filter: blur(6px);
  align-items: center; justify-content: center; padding: 20px;
}
.compare-box {
  background: var(--card); border: 1px solid var(--line); border-radius: 16px;
  max-width: 900px; width: 100%; max-height: 90vh; overflow: auto;
  box-shadow: var(--shadow-lg); padding: 18px;
}
.compare-head {
  display: flex; justify-content: space-between; align-items: center;
  font-weight: 800; letter-spacing: -0.01em; margin-bottom: 14px;
}
.compare-close {
  width: 32px; height: 32px; border-radius: 9px; border: 1px solid var(--line);
  background: transparent; color: var(--muted-solid); cursor: pointer; font-size: 0.85rem;
}
.compare-close:hover { border-color: var(--warn); color: var(--warn); }
.compare-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 14px; }
.compare-grid figure { margin: 0; }
.compare-grid img {
  width: 100%; border-radius: 10px; border: 1px solid var(--line); background: var(--bg2);
}
.compare-grid figcaption {
  font-size: 0.8rem; color: var(--muted-solid); margin-top: 6px; text-align: center;
  font-variant-numeric: tabular-nums;
}
@media (max-width: 640px) { .compare-grid { grid-template-columns: 1fr; } }

.spinner {
  width: 22px; height: 22px; border-radius: 50%;
  border: 3px solid var(--line); border-top-color: var(--accent);
  animation: spin 0.8s linear infinite;
}
@keyframes spin { to { transform: rotate(360deg); } }

/* ---------- feature grid ---------- */
.features { display: grid; grid-template-columns: repeat(3, 1fr); gap: 18px; margin: 64px 0 0; }
.feature {
  background: var(--card); border: 1px solid var(--line); border-radius: var(--radius);
  padding: 26px; box-shadow: var(--shadow-sm); transition: transform 0.15s, box-shadow 0.15s;
}
.feature:hover { transform: translateY(-3px); box-shadow: var(--shadow); }
.feature .icon {
  width: 42px; height: 42px; border-radius: 12px; display: flex; align-items: center; justify-content: center;
  font-size: 1.25rem; margin-bottom: 14px;
  background: color-mix(in srgb, var(--accent) 9%, transparent);
  border: 1px solid color-mix(in srgb, var(--accent) 18%, transparent);
}
.feature h3 { font-size: 1.02rem; font-weight: 700; letter-spacing: -0.01em; margin-bottom: 6px; }
.feature p { font-size: 0.88rem; color: var(--muted-solid); line-height: 1.6; }
@media (max-width: 820px) { .features { grid-template-columns: 1fr; } }

/* ---------- steps ---------- */
.steps { margin: 72px 0 0; }
.section-head { text-align: center; margin-bottom: 34px; }
.section-head h2 { font-size: clamp(1.4rem, 3vw, 1.9rem); font-weight: 800; letter-spacing: -0.03em; }
.section-head p { color: var(--muted-solid); margin-top: 8px; font-size: 0.95rem; }
.steps-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 18px; }
.step { position: relative; padding: 24px; border-radius: var(--radius); background: var(--bg2); border: 1px solid var(--line); }
.step .num {
  font-size: 0.72rem; font-weight: 800; color: var(--accent); letter-spacing: 0.08em;
  text-transform: uppercase; margin-bottom: 8px;
}
.step h3 { font-size: 1rem; font-weight: 700; margin-bottom: 6px; letter-spacing: -0.01em; }
.step p { font-size: 0.87rem; color: var(--muted-solid); }
@media (max-width: 820px) { .steps-grid { grid-template-columns: 1fr; } }

/* ---------- content / SEO sections ---------- */
.content { max-width: 760px; margin: 64px auto; }
.content h2 { font-size: 1.3rem; margin: 30px 0 10px; letter-spacing: -0.02em; font-weight: 800; }
.content h3 { font-size: 1.02rem; margin: 18px 0 6px; }
.content p, .content li { color: var(--muted-solid); font-size: 0.94rem; }
.content ul, .content ol { padding-left: 22px; margin: 8px 0; }
.content .faq-q { font-weight: 700; color: var(--text); margin-top: 16px; }

/* ---------- related links ---------- */
.related { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 14px; }
.related a {
  font-size: 0.82rem; padding: 7px 14px; border-radius: 999px; text-decoration: none;
  border: 1px solid var(--line); color: var(--muted-solid); background: var(--card);
  transition: border-color 0.12s, color 0.12s;
}
.related a:hover { border-color: var(--accent); color: var(--accent); }

/* ---------- footer ---------- */
footer { border-top: 1px solid var(--line); margin-top: 72px; background: var(--bg2); }
.footer-grid {
  display: grid; grid-template-columns: 1.6fr 1fr 1fr 1fr; gap: 28px; padding: 44px 0 28px;
}
.footer-brand p { font-size: 0.84rem; color: var(--muted-solid); margin-top: 10px; max-width: 280px; }
.footer-col h4 {
  font-size: 0.74rem; font-weight: 700; text-transform: uppercase; letter-spacing: 0.06em;
  color: var(--muted-solid); margin-bottom: 12px;
}
.footer-col a { display: block; font-size: 0.86rem; color: var(--muted-solid); text-decoration: none; margin-bottom: 8px; }
.footer-col a:hover { color: var(--text); }
.footer-bottom {
  border-top: 1px solid var(--line); padding: 18px 0 26px;
  font-size: 0.78rem; color: var(--muted-solid);
  display: flex; justify-content: space-between; gap: 12px; flex-wrap: wrap;
}
.footer-bottom a { color: var(--muted-solid); }
@media (max-width: 820px) { .footer-grid { grid-template-columns: 1fr 1fr; } }

@media (max-width: 640px) {
  .controls { grid-template-columns: 1fr; }
  .size-row { grid-template-columns: 1fr 1fr; }
  .result-card { flex-wrap: wrap; }
  .hero { padding-top: 48px; }
}