@import url("https://cdn.jsdelivr.net/gh/orioncactus/pretendard@v1.3.9/dist/web/static/pretendard-dynamic-subset.min.css");

:root {
  --color-bg: #16181d;
  --color-surface: #1f2228;
  --color-ink: #f0eee9;
  --color-ink-soft: #9a9fa8;
  --color-line: #33373f;
  --color-accent: #ff6b4a;
  --color-accent-soft: #2e2420;
  --color-success: #5fbf8f;

  --font-display: "Noto Serif KR", Georgia, serif;
  --font-body: "Pretendard", -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  --font-mono: "JetBrains Mono", "SF Mono", Consolas, monospace;

  --radius: 10px;
  --container-width: 760px;
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  margin: 0;
  background: var(--color-bg);
  color: var(--color-ink);
  font-family: var(--font-body);
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
}

.container {
  max-width: var(--container-width);
  margin: 0 auto;
  padding: 0 20px;
}

/* ---------- Header ---------- */
.site-header {
  padding: 48px 0 28px;
  border-bottom: 1px solid var(--color-line);
}

.logo {
  font-family: var(--font-display);
  font-size: clamp(1.8rem, 5vw, 2.4rem);
  font-weight: 600;
  margin: 0 0 8px;
  letter-spacing: -0.01em;
}

.logo span {
  color: var(--color-accent);
  font-weight: 400;
  padding: 0 4px;
}

.tagline {
  font-family: var(--font-mono);
  font-size: 0.85rem;
  color: var(--color-ink-soft);
  margin: 0;
  letter-spacing: 0.01em;
}

/* ---------- Ad slots ---------- */
.ad-slot {
  min-height: 90px;
  margin: 28px auto;
  display: flex;
  align-items: center;
  justify-content: center;
  background: repeating-linear-gradient(
    45deg,
    transparent, transparent 10px,
    rgba(255,255,255,0.03) 10px, rgba(255,255,255,0.03) 20px
  );
  border: 1px dashed var(--color-line);
  border-radius: var(--radius);
  color: var(--color-ink-soft);
  font-size: 0.75rem;
  font-family: var(--font-mono);
}
.ad-slot::after { content: "AD"; opacity: 0.4; }
.ad-slot-b, .ad-slot-c { max-width: var(--container-width); padding: 0 20px; box-sizing: content-box; }

/* ---------- Converter / dropzone ---------- */
.converter {
  padding: 36px 0 16px;
}

.dropzone {
  border: 2px dashed var(--color-line);
  border-radius: var(--radius);
  background: var(--color-surface);
  padding: 48px 24px;
  text-align: center;
  cursor: pointer;
  transition: border-color 0.15s ease, background 0.15s ease;
}

.dropzone:hover,
.dropzone:focus-visible {
  border-color: var(--color-accent);
  background: var(--color-accent-soft);
}

.dropzone.dragover {
  border-color: var(--color-accent);
  background: var(--color-accent-soft);
}

.dropzone-title {
  font-size: 1.05rem;
  font-weight: 600;
  margin: 0 0 6px;
}

.dropzone-sub {
  font-size: 0.9rem;
  color: var(--color-ink-soft);
  margin: 0;
}

/* ---------- Options ---------- */
.options {
  display: flex;
  flex-wrap: wrap;
  gap: 24px;
  align-items: center;
  margin: 20px 0;
  padding: 18px 20px;
  background: var(--color-surface);
  border: 1px solid var(--color-line);
  border-radius: var(--radius);
}

.option-group {
  display: flex;
  align-items: center;
  gap: 12px;
  flex-wrap: wrap;
}

.option-label {
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--color-ink-soft);
  font-family: var(--font-mono);
}

.option-group label {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 0.95rem;
  cursor: pointer;
}

#qualityGroup {
  flex: 1;
  min-width: 220px;
}

#quality { flex: 1; accent-color: var(--color-accent); }

#qualityGroup.disabled { opacity: 0.4; pointer-events: none; }

/* ---------- Status / progress ---------- */
.status {
  margin: 16px 0;
}

#statusText {
  font-family: var(--font-mono);
  font-size: 0.85rem;
  color: var(--color-ink-soft);
  margin: 0 0 8px;
}

.progress-bar {
  height: 6px;
  background: var(--color-line);
  border-radius: 3px;
  overflow: hidden;
}

.progress-fill {
  height: 100%;
  width: 0%;
  background: var(--color-accent);
  transition: width 0.2s ease;
}

/* ---------- Result list ---------- */
.result-list {
  list-style: none;
  margin: 16px 0;
  padding: 0;
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.result-item {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  background: var(--color-surface);
  border: 1px solid var(--color-line);
  border-radius: var(--radius);
  padding: 12px 16px;
  font-size: 0.9rem;
}

.result-info {
  display: flex;
  flex-direction: column;
  gap: 2px;
  min-width: 0;
}

.result-name {
  font-weight: 500;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.result-meta {
  font-family: var(--font-mono);
  font-size: 0.78rem;
  color: var(--color-ink-soft);
}

.result-status {
  font-size: 0.78rem;
  font-family: var(--font-mono);
  padding: 3px 8px;
  border-radius: 999px;
  white-space: nowrap;
}

.result-status.waiting { color: var(--color-ink-soft); background: var(--color-bg); }
.result-status.working { color: var(--color-accent); background: var(--color-accent-soft); }
.result-status.done { color: var(--color-success); background: #1c2b24; }
.result-status.error { color: #ff8a70; background: #3a221c; }

.result-download {
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--color-accent);
  text-decoration: none;
  white-space: nowrap;
}
.result-download:hover { text-decoration: underline; }

/* ---------- Buttons ---------- */
.btn {
  display: inline-block;
  font-family: var(--font-body);
  font-size: 0.95rem;
  font-weight: 600;
  padding: 12px 24px;
  border-radius: var(--radius);
  border: none;
  cursor: pointer;
  transition: opacity 0.15s ease;
}

.btn-primary {
  background: var(--color-accent);
  color: #1a120d;
  width: 100%;
  margin-top: 8px;
}

.btn-primary:hover { opacity: 0.85; }

/* ---------- Guide / FAQ ---------- */
.guide, .faq {
  padding: 40px 0;
  border-top: 1px solid var(--color-line);
}

.guide h2, .faq h2 {
  font-family: var(--font-display);
  font-size: 1.5rem;
  font-weight: 600;
  margin: 0 0 16px;
}

.guide p { color: var(--color-ink-soft); }
.guide p strong { color: var(--color-ink); }

.guide-steps {
  padding-left: 0;
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 12px;
  margin: 20px 0;
}

.guide-steps li {
  background: var(--color-surface);
  border: 1px solid var(--color-line);
  border-radius: var(--radius);
  padding: 14px 18px;
  color: var(--color-ink-soft);
}

.guide-steps li strong { color: var(--color-ink); }

.faq details {
  border-bottom: 1px solid var(--color-line);
  padding: 16px 0;
}

.faq summary {
  font-weight: 600;
  cursor: pointer;
  font-size: 1rem;
  list-style: none;
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.faq summary::after {
  content: "+";
  font-family: var(--font-mono);
  color: var(--color-accent);
  font-size: 1.2rem;
  flex-shrink: 0;
  margin-left: 12px;
}

.faq details[open] summary::after { content: "−"; }

.faq p {
  margin: 12px 0 0;
  color: var(--color-ink-soft);
  font-size: 0.95rem;
}

/* ---------- Footer ---------- */
.site-footer {
  border-top: 1px solid var(--color-line);
  padding: 28px 0 40px;
}

.footer-links {
  display: flex;
  gap: 20px;
  margin-bottom: 12px;
}

.footer-links a {
  color: var(--color-ink-soft);
  font-size: 0.85rem;
  text-decoration: none;
}
.footer-links a:hover { text-decoration: underline; }

.footer-credit {
  font-size: 0.78rem;
  color: var(--color-ink-soft);
  margin: 0;
}

.footer-credit a { color: var(--color-ink-soft); }

/* ---------- Responsive ---------- */
@media (max-width: 480px) {
  .dropzone { padding: 32px 16px; }
  .options { flex-direction: column; align-items: stretch; }
  .result-item { flex-wrap: wrap; }
}

/* ---------- Language switcher ---------- */
.lang-switcher {
  position: fixed;
  right: 20px;
  bottom: 20px;
  z-index: 100;
  display: flex;
  flex-direction: column;
  align-items: flex-end;
  gap: 8px;
}

.lang-toggle {
  font-family: var(--font-body);
  font-size: 0.85rem;
  font-weight: 600;
  padding: 10px 16px;
  border-radius: 999px;
  border: 1px solid var(--color-line);
  background: var(--color-surface);
  color: var(--color-ink);
  cursor: pointer;
  box-shadow: 0 2px 10px rgba(0, 0, 0, 0.25);
}

.lang-toggle:hover { border-color: var(--color-accent); }

.lang-menu {
  display: flex;
  flex-direction: column;
  gap: 4px;
  background: var(--color-surface);
  border: 1px solid var(--color-line);
  border-radius: var(--radius);
  padding: 6px;
  box-shadow: 0 2px 10px rgba(0, 0, 0, 0.25);
}

.lang-menu[hidden] {
  display: none;
}

.lang-option {
  display: block;
  padding: 8px 16px;
  font-size: 0.85rem;
  color: var(--color-ink-soft);
  text-decoration: none;
  border-radius: 6px;
  white-space: nowrap;
}

.lang-option:hover { background: var(--color-bg); color: var(--color-ink); }
.lang-option.active { color: var(--color-accent); font-weight: 600; }