@font-face {
  font-family: "Barlow Condensed";
  src: url("/static/barlow-condensed-bold.woff2") format("woff2");
  font-weight: 700;
  font-style: normal;
  font-display: swap;
}

:root {
  color-scheme: dark;
  --color-primary: #f59b57;
  --color-primary-hover: #ffb77e;
  --color-header: #1c1b19;
  --color-text: #fff5e8;
  --color-muted: #ded5c9;
  --color-background: #252421;
  --color-surface: #fff5e8;
  --color-tint: #eee6da;
  --color-border: #615b53;
  --color-ink: #34291f;
  --color-slate: #69513e;
  --color-frame: #302e2a;
  --color-frame-border: #615b53;
  --color-accent-ink: #a64f20;
  --color-upload-border: #92877a;
  --color-disabled-bg: #45413b;
  --color-disabled-border: #81786c;
  --color-secondary-hover: #45413b;
  --color-success: #205941;
  --color-success-bg: #e6f2e9;
  --color-error: #952c28;
  --color-error-bg: #fff0ec;
  --color-focus: #ffcd57;
  --font-body: system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  --font-display: "Barlow Condensed", sans-serif;
  --radius-small: 4px;
  --radius-panel: 8px;
  --ease-out: cubic-bezier(0.16, 1, 0.3, 1);
}

* { box-sizing: border-box; }
html { scroll-padding-top: 24px; scrollbar-color: var(--color-muted) var(--color-background); }
body { margin: 0; background: var(--color-background); color: var(--color-text); font: 1rem/1.65 var(--font-body); }
::selection { background: var(--color-primary); color: var(--color-background); }
[hidden] { display: none !important; }
a { color: var(--color-primary); text-underline-offset: 4px; }
a:hover { color: var(--color-primary-hover); text-decoration-thickness: 2px; }
button, input { font: inherit; caret-color: var(--color-primary); }
button, a, summary { -webkit-tap-highlight-color: transparent; }
:focus-visible { outline: 3px solid var(--color-focus); outline-offset: 4px; }
h1, h2, h3, p { margin: 0; }
h1, h2, h3 { text-wrap: balance; }
h1, .instructions > h2, .questions > h2 { font-family: var(--font-display); font-weight: 700; line-height: 1.04; }
h1 { font-size: clamp(3rem, 5.8vw, 5rem); max-width: 650px; letter-spacing: -0.015em; }
h1 span { display: block; color: var(--color-primary); }
h2 { font-size: 2.5rem; }
h3 { font-size: 1.15rem; line-height: 1.35; }
p { max-width: 70ch; }
svg { flex-shrink: 0; }
.container { width: min(1120px, calc(100% - 64px)); margin-inline: auto; }
.skip-link { position: absolute; left: 16px; top: -100px; padding: 12px 20px; background: var(--color-focus); color: var(--color-background); z-index: 10; }
.skip-link:focus { top: 12px; }
.skip-link:hover { color: var(--color-background); }
.site-header { background: var(--color-header); border-bottom: 1px solid var(--color-border); }
.header-inner { min-height: 100px; display: flex; align-items: center; justify-content: space-between; gap: 24px; }
.site-header a { color: var(--color-text); }
.brand { display: flex; align-items: center; gap: 14px; text-decoration: none; font-weight: 700; }
.brand-mark { display: flex; align-items: center; justify-content: center; flex-shrink: 0; width: 56px; height: 48px; background: var(--color-primary); border-radius: var(--radius-small); }
.brand svg { width: 40px; height: 24px; color: var(--color-header); }
.brand-title { font: 700 1.75rem/1.1 var(--font-display); }
.brand-title span { color: var(--color-primary); }
.brand:hover .brand-mark { background: var(--color-primary-hover); }
.brand:hover .brand-title span { color: var(--color-primary-hover); }
nav { display: flex; gap: 12px; font-size: 0.9rem; font-weight: 700; }
nav a { display: inline-flex; align-items: center; justify-content: center; min-height: 48px; padding: 10px 18px; background: var(--color-frame); border: 1px solid var(--color-frame-border); border-radius: var(--radius-small); text-decoration: none; }
nav a:hover { color: var(--color-background); background: var(--color-primary); border-color: var(--color-primary); }
nav a:active { background: var(--color-primary-hover); }
.intro { display: grid; grid-template-columns: 1.35fr 1fr; align-items: end; gap: 48px; padding-block: 52px 36px; }
.intro-copy { padding-bottom: 4px; }
.intro-copy > p { font-size: 1.08rem; max-width: 44ch; color: var(--color-muted); }
.intro-copy .service-note { margin-top: 18px; color: var(--color-text); font-size: 0.9rem; font-weight: 600; }
.converter { background: var(--color-frame); border: 1px solid var(--color-frame-border); border-radius: var(--radius-panel); overflow: hidden; }
.converter-body { padding: 24px 24px 16px; }
.drop-zone { color-scheme: light; padding: 32px 24px; background: var(--color-surface); border: 2px dashed var(--color-upload-border); border-radius: var(--radius-small); text-align: center; color: var(--color-ink); transition: background 180ms, border-color 180ms; }
.drop-zone.is-dragging { border-color: var(--color-accent-ink); background: var(--color-tint); }
.drop-zone.has-file { border-style: solid; border-color: var(--color-accent-ink); background: var(--color-tint); }
.upload-icon { display: block; width: 80px; height: 48px; color: var(--color-accent-ink); margin: 0 auto 18px; }
.barbell-outer { opacity: 0.35; transition: opacity 320ms var(--ease-out); }
.has-file .barbell-outer, .is-dragging .barbell-outer { opacity: 1; }
form[aria-busy="true"] .upload-icon { animation: barbell-lift 1.4s var(--ease-out) infinite; }
@keyframes barbell-lift { 0%, 100% { transform: translateY(0); } 45% { transform: translateY(-6px); } }
.drop-zone h2 { font-size: 1.25rem; line-height: 1.3; overflow-wrap: anywhere; }
.drop-zone p { margin: 8px auto 20px; color: var(--color-slate); font-size: 0.95rem; overflow-wrap: anywhere; font-variant-numeric: tabular-nums; }
.button { display: inline-flex; align-items: center; justify-content: center; gap: 16px; min-height: 48px; padding: 10px 24px; border: 2px solid var(--color-primary); border-radius: var(--radius-small); background: var(--color-primary); color: var(--color-background); font-weight: 700; line-height: 1.5; text-decoration: none; cursor: pointer; }
.button:hover { background: var(--color-primary-hover); color: var(--color-background); border-color: var(--color-primary-hover); }
.button:active { background: var(--color-primary); border-color: var(--color-ink); }
.button svg { width: 30px; height: 20px; }
.button:disabled { background: var(--color-disabled-bg); border-color: var(--color-disabled-border); color: var(--color-muted); cursor: not-allowed; }
.button-secondary { background: transparent; color: var(--color-text); border-color: var(--color-muted); }
.button-secondary:hover { background: var(--color-secondary-hover); color: var(--color-text); border-color: var(--color-muted); }
.file-picker { position: relative; overflow: hidden; background: var(--color-primary); color: var(--color-background); border-color: var(--color-ink); }
.file-picker:hover { background: var(--color-primary-hover); color: var(--color-background); border-color: var(--color-ink); }
.file-picker:active { background: var(--color-primary); }
.file-picker input { position: absolute; inset: 0; width: 100%; height: 100%; opacity: 0; cursor: pointer; }
.file-picker:focus-within { outline: 3px solid var(--color-ink); outline-offset: 4px; }
.file-picker:has(input:disabled) { opacity: 0.6; cursor: not-allowed; }
.text-button { display: block; margin: 12px auto 0; min-height: 44px; padding: 6px 14px; border: 0; background: transparent; color: var(--color-ink); text-decoration: underline; text-underline-offset: 4px; cursor: pointer; }
.text-button:hover { color: var(--color-slate); }
.status { margin-top: 12px; color: var(--color-muted); font-size: 0.85rem; }
.error { padding: 14px 18px; margin-top: 16px; border: 1px solid var(--color-error); border-radius: var(--radius-small); background: var(--color-error-bg); color: var(--color-error); overflow-wrap: anywhere; }
.result { display: flex; align-items: center; justify-content: space-between; gap: 24px; padding: 28px; border: 1px solid var(--color-success); border-radius: var(--radius-small); background: var(--color-success-bg); color: var(--color-ink); }
.result h2 { color: var(--color-success); font-size: 1.3rem; line-height: 1.3; }
.result p { margin-top: 8px; }
.result a:not(.button) { color: var(--color-success); }
.result .button { flex-shrink: 0; }
.converter-footer { display: flex; justify-content: space-between; align-items: center; gap: 24px; padding: 18px 24px; border-top: 1px solid var(--color-frame-border); }
.converter-footer p { color: var(--color-muted); font-size: 0.85rem; }
.noscript { padding: 16px 24px; background: var(--color-error-bg); color: var(--color-error); }
.instructions, .questions { display: grid; grid-template-columns: 280px minmax(0, 1fr); column-gap: 64px; margin-block: 64px; padding-top: 36px; border-top: 1px solid var(--color-border); }
.instructions > h2, .questions > h2 { max-width: 12ch; font-size: 2.5rem; }
.steps { list-style: none; counter-reset: step; margin: 0; padding: 0; }
.steps li { display: flex; gap: 20px; counter-increment: step; padding-bottom: 28px; }
.steps li:last-child { padding-bottom: 0; }
.steps li::before { content: counter(step); flex: 0 0 36px; height: 36px; display: grid; place-items: center; background: var(--color-primary); color: var(--color-background); border-radius: var(--radius-small); font: 700 1.6rem/1 var(--font-display); font-variant-numeric: tabular-nums; }
.steps p { margin-top: 10px; color: var(--color-muted); }
.steps strong { color: var(--color-text); }
.questions > h2 { grid-row: 1 / span 5; }
details { grid-column: 2; border-bottom: 1px solid var(--color-border); }
details:first-of-type { margin-top: -15px; }
summary { padding: 18px 4px; cursor: pointer; font-weight: 650; }
summary::marker { color: var(--color-primary); }
summary:hover, details[open] summary { color: var(--color-primary); }
details p { padding: 0 4px 22px; color: var(--color-muted); }
.site-footer { padding-block: 32px; border-top: 1px solid var(--color-border); background: var(--color-header); font-size: 0.85rem; }
.site-footer .container { display: grid; grid-template-columns: 1fr auto; gap: 8px 24px; }
.site-footer p { grid-column: 1; color: var(--color-muted); }
.footer-actions { grid-column: 2; grid-row: 1 / span 2; align-self: center; display: flex; flex-wrap: wrap; align-items: center; gap: 16px 24px; }
.footer-actions .button svg { width: 24px; height: 24px; }

@media (max-width: 850px) {
  .intro { grid-template-columns: 1fr; gap: 24px; }
  .intro-copy > p { max-width: 65ch; }
  .instructions, .questions { grid-template-columns: 210px minmax(0, 1fr); gap: 32px; }
}
@media (max-width: 600px) {
  .container { width: calc(100% - 32px); }
  .header-inner { align-items: flex-start; flex-direction: column; gap: 16px; padding-block: 20px 16px; }
  .brand { gap: 12px; }
  .brand-mark { width: 48px; height: 44px; }
  .brand svg { width: 36px; height: 24px; }
  .brand-title { font-size: 1.5rem; }
  nav { width: 100%; gap: 12px; }
  nav a { flex: 1; padding-inline: 12px; }
  .intro { padding-block: 32px 28px; gap: 20px; }
  .intro-copy > p { font-size: 1rem; }
  .intro-copy .service-note { margin-top: 12px; }
  .converter-body { padding: 12px 12px 14px; }
  .drop-zone { padding: 28px 12px; }
  .drop-zone h2 { font-size: 1.15rem; }
  .converter-footer { padding: 16px 12px; flex-direction: column-reverse; align-items: stretch; gap: 14px; }
  .converter-footer p { text-align: center; }
  .result { flex-direction: column; align-items: stretch; padding: 20px; }
  .instructions, .questions { display: block; margin-block: 40px; padding-top: 28px; }
  .instructions > h2, .questions > h2 { max-width: none; font-size: 2rem; margin-bottom: 28px; }
  .steps li { gap: 12px; }
  .site-footer .container { display: block; }
  .site-footer p { margin-block: 8px 16px; }
  .footer-actions { flex-direction: column; align-items: stretch; text-align: center; }
}
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { animation: none !important; transition: none !important; }
}