:root {
  --bg: #080e1a;
  --surface: #101927;
  --surface-2: #162235;
  --surface-3: #1c2a40;
  --text: #f5f8fc;
  --muted: #9fb0c7;
  --border: rgba(185, 205, 230, .17);
  --accent: #63e6be;
  --accent-strong: #36c99b;
  --accent-ink: #05251b;
  --info: #70b7ff;
  --warning: #ffc66d;
  --danger: #ff818d;
  --success: #6fe4aa;
  --shadow: 0 24px 80px rgba(0, 0, 0, .25);
  --radius: 20px;
  --header-height: 68px;
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  font-synthesis: none;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body { margin: 0; min-width: 320px; background: radial-gradient(circle at 50% -10%, #17304a 0, var(--bg) 38rem); color: var(--text); line-height: 1.55; }
button, input, textarea, select { font: inherit; }
button, select, a { -webkit-tap-highlight-color: transparent; }
button { cursor: pointer; }
button:disabled { cursor: not-allowed; opacity: .55; }
a { color: inherit; }
img { max-width: 100%; }
[hidden] { display: none !important; }

:where(a, button, input, textarea, select, [tabindex]):focus-visible {
  outline: 3px solid var(--info);
  outline-offset: 3px;
}

.sr-only { position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px; overflow: hidden; clip: rect(0,0,0,0); white-space: nowrap; border: 0; }
.skip-link { position: fixed; z-index: 100; top: 8px; left: 8px; transform: translateY(-160%); padding: 10px 14px; border-radius: 10px; background: var(--text); color: var(--bg); }
.skip-link:focus { transform: none; }

.site-header { position: sticky; z-index: 20; top: 0; height: var(--header-height); border-bottom: 1px solid var(--border); background: rgba(8, 14, 26, .82); backdrop-filter: blur(18px); }
.header-inner, .footer-inner { width: min(1120px, calc(100% - 32px)); height: 100%; margin: 0 auto; display: flex; align-items: center; justify-content: space-between; gap: 20px; }
.brand { display: inline-flex; align-items: center; gap: 10px; color: var(--text); font-size: 1.05rem; font-weight: 760; text-decoration: none; letter-spacing: -.02em; }
.brand-mark { display: grid; place-items: center; width: 34px; height: 34px; border-radius: 11px; color: var(--accent-ink); background: var(--accent); }
.brand-mark svg { width: 21px; fill: none; stroke: currentColor; stroke-linecap: round; stroke-linejoin: round; stroke-width: 2; }
.header-nav { display: flex; align-items: center; gap: 6px; }
.nav-button, .language-picker select { min-height: 40px; border: 0; border-radius: 10px; background: transparent; color: var(--muted); }
.nav-button { display: none; padding: 0 12px; }
.nav-button:hover, .nav-button:focus-visible { color: var(--text); background: var(--surface-2); }
.language-picker select { padding: 0 8px; outline: 1px solid var(--border); }

.network-banner { padding: 8px 16px; background: #34270f; color: #ffe1a6; text-align: center; font-size: .86rem; }
main { width: min(960px, calc(100% - 32px)); margin: 0 auto; }
.hero { padding: clamp(64px, 10vw, 118px) 0 44px; text-align: center; }
.eyebrow { display: inline-flex; align-items: center; gap: 9px; color: var(--accent); font-size: .78rem; font-weight: 750; letter-spacing: .08em; text-transform: uppercase; }
.pulse-dot { width: 7px; height: 7px; border-radius: 99px; background: currentColor; box-shadow: 0 0 0 5px rgba(99, 230, 190, .1); }
h1 { max-width: 780px; margin: 18px auto 16px; font-size: clamp(2.35rem, 7vw, 5.2rem); line-height: .98; letter-spacing: -.06em; }
.hero-copy { max-width: 660px; margin: 0 auto 34px; color: var(--muted); font-size: clamp(1rem, 2vw, 1.18rem); }
.availability-notice { display: grid; grid-template-columns: 1fr auto; gap: 3px 18px; align-items: center; max-width: 780px; margin: 0 auto 14px; padding: 13px 16px; border: 1px solid rgba(255,198,109,.35); border-radius: 14px; background: rgba(255,198,109,.08); text-align: left; }
.availability-notice strong { color: var(--warning); }
.availability-notice span { color: var(--muted); font-size: .83rem; }
.availability-notice button { grid-column: 2; grid-row: 1 / span 2; min-height: 44px; color: var(--text); text-decoration: underline; text-underline-offset: 3px; }

.download-card { max-width: 780px; margin: 0 auto; padding: clamp(18px, 4vw, 28px); border: 1px solid var(--border); border-radius: 26px; background: rgba(16, 25, 39, .88); box-shadow: var(--shadow); text-align: left; }
.field-header { display: flex; justify-content: space-between; align-items: center; margin-bottom: 9px; }
.field-header label, legend { color: var(--text); font-weight: 680; font-size: .92rem; }
.text-button { border: 0; background: transparent; color: var(--muted); padding: 4px 8px; }
.text-button:hover { color: var(--danger); }
.url-control { position: relative; }
.url-control textarea { display: block; width: 100%; min-height: 78px; resize: vertical; padding: 17px 92px 17px 16px; border: 1px solid var(--border); border-radius: 15px; outline: none; background: #0a1220; color: var(--text); line-height: 1.4; }
.url-control textarea::placeholder { color: #65758b; }
.url-control textarea:focus { border-color: var(--accent); box-shadow: 0 0 0 3px rgba(99, 230, 190, .12); }
.url-control textarea[aria-invalid="true"] { border-color: var(--danger); }
.paste-button { position: absolute; top: 11px; right: 10px; display: flex; align-items: center; gap: 6px; min-height: 42px; padding: 0 12px; border: 1px solid var(--border); border-radius: 11px; background: var(--surface-2); color: var(--text); }
.paste-button:hover { border-color: var(--accent); }
.paste-button svg { width: 17px; fill: none; stroke: currentColor; stroke-width: 1.8; stroke-linecap: round; stroke-linejoin: round; }
.field-help, .form-note { margin: 8px 2px 0; color: var(--muted); font-size: .78rem; }
.field-error { margin: 8px 2px 0; color: var(--danger); font-size: .84rem; }
.rights-box { margin: 20px 0; padding: 0; border: 0; }
.rights-grid { display: grid; grid-template-columns: 1fr; gap: 8px; margin-top: 10px; }
.choice-card { position: relative; display: flex; align-items: center; min-height: 48px; padding: 10px 12px; border: 1px solid var(--border); border-radius: 12px; background: #0b1422; color: var(--muted); font-size: .84rem; cursor: pointer; }
.choice-card:has(input:checked) { border-color: var(--accent); background: rgba(99, 230, 190, .08); color: var(--text); }
.choice-card input { width: 17px; height: 17px; margin: 0 9px 0 0; accent-color: var(--accent-strong); }
.attestation { display: flex; gap: 10px; align-items: flex-start; margin-top: 13px; color: var(--muted); font-size: .79rem; cursor: pointer; }
.attestation input { flex: 0 0 auto; width: 17px; height: 17px; margin-top: 2px; accent-color: var(--accent-strong); }
.primary-button, .secondary-button, .danger-button { display: inline-flex; align-items: center; justify-content: center; min-height: 50px; border-radius: 13px; padding: 0 20px; font-weight: 740; text-decoration: none; transition: transform .16s ease, background .16s ease, border-color .16s ease; }
.primary-button { width: 100%; border: 1px solid var(--accent); background: var(--accent); color: var(--accent-ink); }
.primary-button:hover:not(:disabled) { background: #81efcd; transform: translateY(-1px); }
.secondary-button, .danger-button { border: 1px solid var(--border); background: transparent; color: var(--text); }
.secondary-button:hover { border-color: var(--accent); }
.danger-button { color: var(--danger); }
.danger-button:hover { border-color: var(--danger); }
.compact { min-height: 40px; width: auto; padding: 0 13px; font-size: .82rem; }
.button-spinner { display: inline-block; width: 17px; height: 17px; border: 2px solid rgba(5, 37, 27, .28); border-top-color: var(--accent-ink); border-radius: 50%; animation: spin .8s linear infinite; }
.form-note { text-align: center; }

.shared-notice { max-width: 780px; margin: 0 auto 22px; padding: 14px 16px; border: 1px solid rgba(112, 183, 255, .3); border-radius: 14px; background: rgba(112, 183, 255, .08); color: var(--muted); }
.shared-notice strong { display: block; color: var(--text); }
.workflow, .content-panel { margin: 22px 0 56px; padding: clamp(18px, 4vw, 30px); border: 1px solid var(--border); border-radius: var(--radius); background: rgba(16, 25, 39, .84); }
.section-heading, .format-heading { display: flex; align-items: flex-start; justify-content: space-between; gap: 16px; margin-bottom: 18px; }
.section-kicker { margin: 0 0 3px; color: var(--accent); font-size: .72rem; font-weight: 760; letter-spacing: .08em; text-transform: uppercase; }
.section-heading h2, .format-heading h3 { margin: 0; font-size: clamp(1.3rem, 4vw, 1.8rem); letter-spacing: -.025em; }
.state-badge { flex: 0 0 auto; padding: 5px 9px; border-radius: 99px; background: rgba(112,183,255,.1); color: var(--info); font: 700 .67rem/1.2 ui-monospace, SFMono-Regular, Menlo, monospace; letter-spacing: .04em; }
.status-card { display: flex; gap: 16px; align-items: flex-start; min-height: 124px; padding: 18px; border: 1px solid var(--border); border-radius: 16px; background: #0b1422; }
.status-icon { position: relative; flex: 0 0 auto; width: 42px; height: 42px; border: 2px solid currentColor; border-radius: 50%; color: var(--info); }
.status-icon.is-working::before { content: ""; position: absolute; inset: 6px; border: 2px solid transparent; border-top-color: currentColor; border-radius: 50%; animation: spin 1s linear infinite; }
.status-icon.is-success { color: var(--success); }
.status-icon.is-success::before { content: ""; position: absolute; width: 17px; height: 9px; left: 10px; top: 10px; border-left: 2px solid; border-bottom: 2px solid; transform: rotate(-45deg); }
.status-icon.is-error { color: var(--danger); }
.status-icon.is-error::before, .status-icon.is-error::after { content: ""; position: absolute; top: 9px; left: 19px; width: 2px; height: 20px; background: currentColor; transform: rotate(45deg); }
.status-icon.is-error::after { transform: rotate(-45deg); }
.status-icon.is-warning { color: var(--warning); }
.status-icon.is-warning::before { content: "!"; position: absolute; inset: 4px; text-align: center; font-weight: 800; font-size: 1.3rem; }
.status-content { min-width: 0; flex: 1; }
.status-content h3 { margin: 0 0 5px; font-size: 1rem; }
.status-content p { margin: 0; color: var(--muted); font-size: .89rem; }
.progress-wrap { display: flex; align-items: center; gap: 10px; margin-top: 18px; color: var(--muted); font-size: .76rem; }
.progress-track { flex: 1; height: 7px; overflow: hidden; border-radius: 99px; background: var(--surface-3); }
.progress-track span { display: block; height: 100%; min-width: 3px; border-radius: inherit; background: var(--accent); transition: width .35s ease; }
.status-actions { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 16px; }

.media-preview { display: grid; grid-template-columns: 1fr; gap: 16px; margin-top: 18px; padding: 16px; border: 1px solid var(--border); border-radius: 16px; }
.preview-image-wrap { overflow: hidden; aspect-ratio: 16 / 9; border-radius: 12px; background: var(--surface-2); }
.preview-image-wrap img { width: 100%; height: 100%; object-fit: cover; }
.media-provider { margin: 0 0 4px; color: var(--accent); font-size: .72rem; font-weight: 750; text-transform: uppercase; }
.media-title { margin: 0 0 12px; font-size: 1.05rem; overflow-wrap: anywhere; }
.media-meta { display: flex; flex-wrap: wrap; gap: 8px 16px; margin: 0; color: var(--muted); font-size: .79rem; }
.media-meta div { display: flex; gap: 5px; }
.media-meta dt::after { content: ":"; }
.media-meta dd { margin: 0; color: var(--text); }
.format-section { margin-top: 22px; }
.format-list { display: grid; gap: 9px; margin-bottom: 16px; }
.format-option { display: grid; grid-template-columns: auto 1fr auto; align-items: center; gap: 12px; padding: 13px; border: 1px solid var(--border); border-radius: 13px; background: #0b1422; cursor: pointer; }
.format-option:has(input:checked) { border-color: var(--accent); background: rgba(99, 230, 190, .07); }
.format-option input { width: 18px; height: 18px; accent-color: var(--accent-strong); }
.format-name { display: block; color: var(--text); font-weight: 680; }
.format-detail { display: block; margin-top: 2px; color: var(--muted); font-size: .75rem; }
.format-size { color: var(--muted); font: 650 .75rem ui-monospace, SFMono-Regular, monospace; white-space: nowrap; }
.advanced-list { padding-top: 2px; }

.trust-grid { display: grid; grid-template-columns: 1fr; gap: 12px; margin: 20px 0 70px; }
.trust-grid article { padding: 20px; border-top: 1px solid var(--border); }
.trust-grid h2 { margin: 13px 0 7px; font-size: 1rem; }
.trust-grid p { margin: 0; color: var(--muted); font-size: .85rem; }
.feature-icon { color: var(--accent); font: 750 .72rem ui-monospace, SFMono-Regular, monospace; }
.market-context, .seo-content { margin: 0 0 22px; padding: clamp(22px, 5vw, 34px); border: 1px solid var(--border); border-radius: var(--radius); background: linear-gradient(135deg, rgba(99, 230, 190, .07), rgba(112, 183, 255, .04)); }
.market-context h2, .seo-content h2 { max-width: 720px; margin: 0 0 9px; font-size: clamp(1.35rem, 4vw, 2rem); line-height: 1.15; letter-spacing: -.03em; }
.market-context > p:last-child { max-width: 760px; margin: 0; color: var(--muted); }
.faq-grid { display: grid; gap: 12px; margin-top: 20px; }
.faq-grid article { padding: 17px; border: 1px solid var(--border); border-radius: 14px; background: rgba(8, 14, 26, .35); }
.faq-grid h3 { margin: 0 0 7px; font-size: .98rem; }
.faq-grid p { margin: 0; color: var(--muted); font-size: .85rem; }
.panel-intro { max-width: 680px; margin: -8px 0 20px; color: var(--muted); font-size: .88rem; }
.provider-list, .history-list { display: grid; gap: 10px; }
.provider-row, .history-row { display: grid; grid-template-columns: 1fr auto; gap: 8px 16px; padding: 14px 15px; border: 1px solid var(--border); border-radius: 13px; background: #0b1422; }
.provider-name, .history-name { font-weight: 680; }
.provider-capability, .history-detail { color: var(--muted); font-size: .78rem; }
.provider-badge, .history-badge { align-self: start; padding: 4px 8px; border-radius: 99px; color: var(--muted); background: var(--surface-3); font-size: .65rem; font-weight: 760; text-transform: uppercase; }
.provider-badge.ok, .history-badge.ready { color: var(--success); background: rgba(111,228,170,.09); }
.provider-badge.paused, .history-badge.failed { color: var(--warning); background: rgba(255,198,109,.09); }
.provider-badge.blocked { color: var(--danger); background: rgba(255,129,141,.09); }
.empty-state { padding: 24px; border: 1px dashed var(--border); border-radius: 13px; color: var(--muted); text-align: center; }
.provider-empty strong { display: block; margin-bottom: 5px; color: var(--text); }
.provider-empty p { margin: 0; }
.skeleton-line { display: block; width: 70%; height: 10px; margin: 0 auto 9px; border-radius: 10px; background: var(--surface-3); animation: shimmer 1.5s ease-in-out infinite; }
.skeleton-line.short { width: 40%; }
.inline-actions { display: flex; flex-wrap: wrap; gap: 8px; }

.install-card { position: fixed; z-index: 30; right: 16px; bottom: 16px; left: 16px; max-width: 550px; margin-left: auto; padding: 16px; border: 1px solid var(--border); border-radius: 17px; background: var(--surface-2); box-shadow: var(--shadow); }
.install-card strong { display: block; }
.install-card p { margin: 3px 0 14px; color: var(--muted); font-size: .82rem; }
.footer-inner { height: auto; padding: 36px 0; align-items: flex-start; border-top: 1px solid var(--border); }
footer { margin-top: 72px; color: var(--muted); }
.footer-brand { color: var(--text); }
footer p { max-width: 340px; margin: 8px 0 0; font-size: .78rem; }
footer nav { display: flex; flex-wrap: wrap; justify-content: flex-end; gap: 12px 18px; }
footer nav a { font-size: .78rem; text-underline-offset: 3px; }
.toast-region { position: fixed; z-index: 50; top: calc(var(--header-height) + 12px); right: 12px; left: 12px; pointer-events: none; }
.toast { max-width: 430px; margin: 0 0 8px auto; padding: 12px 14px; border: 1px solid var(--border); border-radius: 12px; background: #172337; box-shadow: var(--shadow); color: var(--text); font-size: .84rem; animation: toast-in .18s ease-out; }
.noscript { padding: 16px; background: var(--danger); color: #250006; text-align: center; }

@keyframes spin { to { transform: rotate(360deg); } }
@keyframes shimmer { 50% { opacity: .45; } }
@keyframes toast-in { from { opacity: 0; transform: translateY(-6px); } }

@media (min-width: 640px) {
  .nav-button { display: block; }
  .rights-grid { grid-template-columns: repeat(3, 1fr); }
  .media-preview { grid-template-columns: minmax(180px, 32%) 1fr; }
  .trust-grid { grid-template-columns: repeat(3, 1fr); }
  .faq-grid { grid-template-columns: repeat(3, 1fr); }
  .install-card { display: flex; align-items: center; justify-content: space-between; gap: 18px; left: auto; }
  .install-card p { margin-bottom: 0; }
}

@media (min-width: 900px) {
  .format-list { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 520px) {
  .header-inner, .footer-inner, main { width: min(100% - 24px, 960px); }
  .hero { padding-top: 48px; }
  h1 { font-size: clamp(2.15rem, 13vw, 3.4rem); }
  .availability-notice { display: block; }
  .availability-notice span { display: block; margin: 4px 0 8px; }
  .availability-notice button { padding-left: 0; }
  .download-card { padding: 16px; border-radius: 20px; }
  .url-control textarea { padding-right: 16px; padding-bottom: 58px; }
  .paste-button { top: auto; right: 8px; bottom: 8px; min-height: 42px; }
  .choice-card, .attestation { min-height: 48px; }
  .status-card { align-items: flex-start; }
  .format-option { grid-template-columns: auto 1fr; }
  .format-size { grid-column: 2; white-space: normal; }
  .section-heading { align-items: flex-start; }
  .section-heading .inline-actions { justify-content: flex-start; }
  .provider-row, .history-row { grid-template-columns: 1fr; }
  .provider-badge, .history-badge { justify-self: start; }
  .footer-inner { flex-direction: column; }
  footer nav { justify-content: flex-start; }
  .primary-button, .secondary-button, .danger-button { min-height: 46px; }
}

@media (forced-colors: active) {
  .status-icon, .format-option, .choice-card, .download-card, .content-panel { border: 1px solid CanvasText; }
  .pulse-dot, .progress-track span { forced-color-adjust: none; }
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { scroll-behavior: auto !important; animation-duration: .01ms !important; animation-iteration-count: 1 !important; transition-duration: .01ms !important; }
}

@media (prefers-color-scheme: light) {
  :root { --bg: #f4f7fa; --surface: #fff; --surface-2: #edf2f7; --surface-3: #dfe8f1; --text: #101a2a; --muted: #53657b; --border: rgba(35,61,91,.16); --shadow: 0 20px 70px rgba(42,61,83,.13); }
  body { background: radial-gradient(circle at 50% -10%, #d7f4ec 0, var(--bg) 38rem); }
  .site-header { background: rgba(244,247,250,.86); }
  .download-card, .workflow, .content-panel, .market-context, .seo-content { background: rgba(255,255,255,.9); }
  .url-control textarea, .choice-card, .status-card, .format-option, .provider-row, .history-row, .faq-grid article { background: #f8fafc; }
  .toast { background: #fff; }
}