/* ipod-video-converter.org — site styles */

:root {
  --bg: #ffffff;
  --bg-soft: #f6f7fb;
  --bg-hero: linear-gradient(180deg, #f4f1ff 0%, #ffffff 100%);
  --ink: #1a1a23;
  --ink-soft: #4a4a55;
  --ink-mute: #767684;
  --accent: #6c4cff;
  --accent-dark: #5639dc;
  --accent-soft: #ece5ff;
  --border: #e3e3eb;
  --border-strong: #c9c9d6;
  --danger: #c0392b;
  --warn-bg: #fff5d9;
  --warn-border: #e6c66a;
  --success: #1d8a4a;
  --radius: 12px;
  --shadow: 0 1px 2px rgba(20, 20, 30, 0.04), 0 8px 24px rgba(20, 20, 30, 0.06);
  --max-w: 1100px;
  --max-narrow: 760px;
}

* { box-sizing: border-box; }

html, body {
  margin: 0;
  padding: 0;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "Inter", Roboto, "Helvetica Neue", Arial, sans-serif;
  color: var(--ink);
  background: var(--bg);
  line-height: 1.55;
  font-size: 17px;
}

img, video { max-width: 100%; }

a { color: var(--accent-dark); text-decoration: none; }
a:hover { text-decoration: underline; }

.container { max-width: var(--max-w); margin: 0 auto; padding: 0 24px; }
.container.narrow { max-width: var(--max-narrow); }

h1, h2, h3, h4 {
  font-family: "SF Pro Display", -apple-system, BlinkMacSystemFont, "Segoe UI", "Inter", sans-serif;
  line-height: 1.2;
  letter-spacing: -0.01em;
  color: var(--ink);
}
h1 { font-size: 2.6rem; margin: 0 0 0.4em; letter-spacing: -0.02em; }
h2 { font-size: 1.8rem; margin: 1.6em 0 0.6em; }
h3 { font-size: 1.25rem; margin: 1.4em 0 0.4em; }
h4 { font-size: 1rem; margin: 1em 0 0.3em; }

p { margin: 0 0 1em; }

/* ---------- header ---------- */

.site-header {
  border-bottom: 1px solid var(--border);
  background: rgba(255,255,255,0.85);
  backdrop-filter: saturate(180%) blur(8px);
  position: sticky; top: 0; z-index: 20;
}
.site-header .container {
  display: flex; align-items: center; justify-content: space-between;
  height: 64px;
}
.brand {
  display: inline-flex; align-items: center; gap: 10px;
  color: var(--ink); text-decoration: none;
}
.brand:hover { text-decoration: none; }
.brand-logo { display: block; }
.brand-wordmark {
  font-family: -apple-system, BlinkMacSystemFont, "SF Pro Display", "Helvetica Neue", Inter, sans-serif;
  font-size: 1.08rem;
  letter-spacing: -0.015em;
  line-height: 1;
  color: var(--ink);
  white-space: nowrap;
}
.bw-ipod { font-weight: 600; }
.bw-mid { font-weight: 300; color: var(--ink-soft); }
.bw-sep { font-weight: 300; color: var(--ink-mute); margin: 0 1px; }
.bw-tld { font-weight: 300; color: var(--ink-mute); margin-left: 1px; }
@media (max-width: 480px) {
  .brand-wordmark { font-size: 0.95rem; }
}
.site-nav a {
  color: var(--ink-soft); margin-left: 22px; font-size: 0.95rem;
}
.site-nav a.active, .site-nav a:hover { color: var(--ink); text-decoration: none; }

.nav-toggle {
  display: none;
  background: transparent;
  border: 0;
  width: 40px; height: 40px;
  padding: 0;
  cursor: pointer;
  position: relative;
}
.nav-toggle span {
  display: block;
  position: absolute;
  left: 9px; right: 9px;
  height: 2px;
  background: var(--ink);
  border-radius: 2px;
  transition: transform 180ms ease, opacity 120ms ease, top 180ms ease;
}
.nav-toggle span:nth-child(1) { top: 13px; }
.nav-toggle span:nth-child(2) { top: 19px; }
.nav-toggle span:nth-child(3) { top: 25px; }
.nav-toggle.is-open span:nth-child(1) { top: 19px; transform: rotate(45deg); }
.nav-toggle.is-open span:nth-child(2) { opacity: 0; }
.nav-toggle.is-open span:nth-child(3) { top: 19px; transform: rotate(-45deg); }

/* ---------- hero / converter ---------- */

.hero {
  background: var(--bg-hero);
  padding: 64px 0 56px;
  border-bottom: 1px solid var(--border);
}
.hero h1 {
  font-size: 3.2rem;
  text-align: center;
  margin-bottom: 0.2em;
}
.hero-sub {
  text-align: center;
  font-size: 1.18rem;
  color: var(--ink-soft);
  max-width: 640px;
  margin: 0 auto 36px;
}

.dropzone {
  background: #fff;
  border: 2px dashed var(--border-strong);
  border-radius: 16px;
  padding: 28px;
  max-width: 720px;
  margin: 0 auto;
  box-shadow: var(--shadow);
  transition: border-color 120ms ease, background 120ms ease;
}
.dropzone.is-hover {
  border-color: var(--accent);
  background: var(--accent-soft);
}
.dropzone-label {
  display: flex; flex-direction: column; align-items: center; justify-content: center;
  text-align: center;
  padding: 28px 16px;
  cursor: pointer;
  border-radius: 12px;
}
.dropzone-label input[type=file] { display: none; }
.dz-icon {
  width: 54px; height: 54px;
  display: inline-flex; align-items: center; justify-content: center;
  background: var(--accent-soft);
  color: var(--accent-dark);
  border-radius: 50%;
  font-size: 1.8rem; font-weight: 700;
  margin-bottom: 14px;
}
.dz-headline {
  font-size: 1.2rem; font-weight: 600; margin-bottom: 4px;
}
.dz-sub { color: var(--ink-soft); margin-bottom: 8px; }
.dz-sub .link { color: var(--accent-dark); text-decoration: underline; }
.dz-meta { color: var(--ink-mute); font-size: 0.85rem; }

.preset-row {
  display: flex; gap: 12px; align-items: center; justify-content: center;
  margin-top: 12px; margin-bottom: 18px;
  flex-wrap: wrap;
}
.preset-row label { color: var(--ink-soft); font-size: 0.95rem; }
.preset-row select {
  padding: 8px 10px;
  border: 1px solid var(--border-strong);
  border-radius: 8px;
  font-size: 0.95rem;
  background: #fff;
}

.btn-primary, .btn-secondary {
  display: inline-block;
  padding: 12px 22px;
  font-size: 1rem; font-weight: 600;
  border-radius: 999px;
  border: none;
  cursor: pointer;
  text-decoration: none;
  transition: transform 80ms ease, background 80ms ease;
}
.btn-primary {
  background: var(--accent);
  color: #fff;
  width: 100%;
}
.btn-primary:hover { background: var(--accent-dark); text-decoration: none; }
.btn-primary:disabled { background: #c9c2e8; cursor: not-allowed; }
.btn-secondary {
  background: transparent; color: var(--accent-dark); border: 1px solid var(--accent);
}
.btn-secondary:hover { background: var(--accent-soft); }

.status { margin-top: 18px; }
.status-row { display: flex; align-items: center; gap: 10px; color: var(--ink-soft); }
.spinner {
  width: 18px; height: 18px;
  border: 2px solid var(--accent-soft);
  border-top-color: var(--accent);
  border-radius: 50%;
  animation: spin 0.8s linear infinite;
}
@keyframes spin { to { transform: rotate(360deg); } }
.progress {
  margin-top: 8px;
  height: 6px;
  background: var(--bg-soft);
  border-radius: 999px;
  overflow: hidden;
}
.progress-bar {
  height: 100%;
  width: 0%;
  background: var(--accent);
  transition: width 120ms ease;
}

.result {
  margin-top: 18px;
  text-align: center;
  padding: 20px;
  border: 1px solid #cde9d1;
  background: #f1faf3;
  border-radius: 12px;
}
.result h2 { margin: 0 0 12px; color: var(--success); font-size: 1.3rem; }
.result-meta { color: var(--ink-mute); font-size: 0.9rem; margin: 10px 0; }
.result .btn-secondary { width: auto; margin-top: 4px; }

.alert {
  margin-top: 16px;
  padding: 12px 14px;
  border-radius: 10px;
  font-size: 0.95rem;
}
.alert-warn { background: var(--warn-bg); border: 1px solid var(--warn-border); }
.alert-error { background: #fdecea; border: 1px solid #f5c0bb; color: var(--danger); }

.hero-features {
  list-style: none; padding: 0; margin: 36px auto 0;
  max-width: 720px;
  display: grid; grid-template-columns: 1fr 1fr; gap: 14px;
  color: var(--ink-soft);
}
.hero-features li { font-size: 0.95rem; }
.hero-features strong { color: var(--ink); }

/* ---------- mobile breakpoints ---------- */

@media (max-width: 820px) {
  .nav-toggle { display: block; margin-left: auto; }
  .site-nav {
    position: absolute;
    top: 64px; left: 0; right: 0;
    background: #fff;
    border-bottom: 1px solid var(--border);
    padding: 8px 16px 14px;
    display: none;
    flex-direction: column;
    box-shadow: 0 8px 24px rgba(20,20,30,0.06);
  }
  .site-nav.is-open { display: flex; }
  .site-nav a {
    margin: 0;
    padding: 12px 6px;
    border-bottom: 1px solid var(--border);
    font-size: 1rem;
  }
  .site-nav a:last-child { border-bottom: 0; }
}

@media (max-width: 640px) {
  body { font-size: 15.5px; }

  .container { padding: 0 16px; }

  /* Push the drop zone up: smaller hero padding, less space below H1, less below sub. */
  .hero { padding: 18px 0 28px; }
  .hero h1 {
    font-size: 1.7rem;
    margin: 4px 0 8px;
    text-align: left;
  }
  .hero-sub {
    font-size: 0.98rem;
    text-align: left;
    margin: 0 0 18px;
  }

  .dropzone { padding: 14px; border-radius: 14px; }
  .dropzone-label { padding: 14px 8px; }
  .dz-icon { width: 44px; height: 44px; font-size: 1.5rem; margin-bottom: 10px; }
  .dz-headline { font-size: 1.02rem; }
  .dz-sub { font-size: 0.92rem; }
  .dz-meta { font-size: 0.78rem; }

  .preset-row { flex-direction: column; align-items: stretch; gap: 6px; margin: 10px 0 14px; }
  .preset-row select { width: 100%; }

  .btn-primary, .btn-secondary { padding: 12px 16px; font-size: 0.98rem; }

  .hero-features { grid-template-columns: 1fr; margin-top: 22px; gap: 10px; font-size: 0.92rem; }

  /* Section spacing */
  .guide { padding: 28px 0; }
  .guide-header h2 { font-size: 1.45rem; }
  .articles-strip { padding: 28px 0; }
  .articles-strip h2 { font-size: 1.3rem; }
  .faq-strip { padding: 28px 0; }
  .page-header { padding: 28px 0 14px; }
  .article-page { padding: 22px 0 40px; }

  /* Typography on mobile */
  h1 { font-size: 1.7rem; }
  h2 { font-size: 1.25rem; }
  h3 { font-size: 1.05rem; }
  .prose { font-size: 0.98rem; }
  .prose p.lede { font-size: 1.02rem; }
  .article-header h1 { font-size: 1.7rem; }
  .article-summary { font-size: 1rem; }
  .lede { font-size: 1rem; }

  /* Tables overflow gracefully */
  .spec-table { font-size: 0.88rem; display: block; overflow-x: auto; }
  .prose pre { font-size: 0.8rem; padding: 12px; }

  /* Footer compresses to a single column */
  .footer-cols { grid-template-columns: 1fr 1fr; gap: 18px; }
  .site-footer { padding: 32px 0 24px; }
}

@media (max-width: 400px) {
  .hero h1 { font-size: 1.55rem; }
  .article-header h1 { font-size: 1.55rem; }
  .footer-cols { grid-template-columns: 1fr; }
}

/* ---------- guide / prose ---------- */

.guide { padding: 56px 0; }
.guide-header { margin-bottom: 24px; }
.guide-header h2 { font-size: 2rem; margin: 0; }
.guide-meta { color: var(--ink-mute); font-size: 0.9rem; margin-top: 4px; }

.prose { font-size: 1.05rem; color: var(--ink); }
.prose h2 { font-size: 1.55rem; margin-top: 1.8em; }
.prose h3 { font-size: 1.2rem; margin-top: 1.5em; }
.prose p.lede { font-size: 1.18rem; color: var(--ink-soft); }
.prose ul, .prose ol { padding-left: 1.4em; margin: 0 0 1em; }
.prose li { margin: 0.25em 0; }
.prose code {
  background: var(--bg-soft);
  padding: 1px 6px;
  border-radius: 4px;
  font-size: 0.92em;
}
.prose pre {
  background: #1c1c25;
  color: #f4f1ff;
  padding: 16px 18px;
  border-radius: 10px;
  overflow-x: auto;
  font-size: 0.88rem;
  line-height: 1.5;
}
.prose pre code { background: none; padding: 0; color: inherit; }

.spec-table {
  width: 100%;
  border-collapse: collapse;
  margin: 1.4em 0;
  font-size: 0.96rem;
}
.spec-table th, .spec-table td {
  padding: 9px 12px;
  border-bottom: 1px solid var(--border);
  text-align: left;
}
.spec-table th { background: var(--bg-soft); font-weight: 600; }

/* ---------- articles strip / cards ---------- */

.articles-strip {
  background: var(--bg-soft);
  padding: 56px 0;
  border-top: 1px solid var(--border);
}
.articles-strip h2 { margin-top: 0; font-size: 1.6rem; }
.article-cards {
  list-style: none; padding: 0; margin: 24px 0 16px;
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
  gap: 16px;
}
.article-cards a {
  display: block;
  padding: 18px;
  background: #fff;
  border: 1px solid var(--border);
  border-radius: 12px;
  color: inherit;
  transition: border-color 120ms ease, transform 120ms ease;
}
.article-cards a:hover {
  border-color: var(--accent);
  text-decoration: none;
  transform: translateY(-2px);
}
.article-cards h3 { margin: 0 0 6px; font-size: 1.05rem; }
.article-cards p { color: var(--ink-soft); font-size: 0.92rem; margin: 0 0 10px; }
.article-cards .cta { color: var(--accent-dark); font-size: 0.9rem; font-weight: 600; }
.all-link { font-weight: 600; }

/* ---------- faq ---------- */

.faq-strip { padding: 56px 0; }
.faq-list dt { font-weight: 600; margin-top: 18px; font-size: 1.05rem; }
.faq-list dd { margin: 6px 0 0 0; color: var(--ink-soft); }

.faq-page details {
  border-bottom: 1px solid var(--border);
  padding: 14px 0;
}
.faq-page summary {
  cursor: pointer;
  list-style: none;
}
.faq-page summary::-webkit-details-marker { display: none; }
.faq-page summary h2 {
  display: inline; margin: 0; font-size: 1.1rem;
}
.faq-page summary::after {
  content: "+";
  float: right;
  color: var(--ink-mute);
  font-size: 1.3rem;
  margin-left: 10px;
}
.faq-page details[open] summary::after { content: "−"; }
.faq-page details p { margin-top: 10px; color: var(--ink-soft); }

/* ---------- page header / article ---------- */

.page-header {
  padding: 56px 0 24px;
  border-bottom: 1px solid var(--border);
  background: var(--bg-soft);
}
.page-header h1 { margin: 0 0 8px; }
.lede { color: var(--ink-soft); font-size: 1.15rem; }

.article-page { padding: 40px 0 64px; }
.breadcrumbs {
  font-size: 0.9rem;
  color: var(--ink-mute);
  margin-bottom: 22px;
}
.breadcrumbs a { color: var(--ink-soft); }
.article-header h1 { font-size: 2.4rem; margin-bottom: 8px; }
.article-meta { color: var(--ink-mute); font-size: 0.9rem; margin-bottom: 6px; }
.article-summary { font-size: 1.15rem; color: var(--ink-soft); margin-top: 12px; }

.post-cta {
  margin-top: 48px;
  padding: 24px;
  background: var(--accent-soft);
  border-radius: 12px;
  text-align: center;
}
.post-cta h3 { margin: 0 0 6px; }
.post-cta p { color: var(--ink-soft); margin: 0 0 14px; }
.post-cta .btn-primary { width: auto; }

.article-list { list-style: none; padding: 0; margin: 24px 0; }
.article-list li {
  padding: 22px 0;
  border-bottom: 1px solid var(--border);
}
.article-list h2 { margin: 0 0 4px; font-size: 1.35rem; }
.article-list h2 a { color: var(--ink); }

/* ---------- cta strip ---------- */

.cta-strip {
  padding: 56px 0;
  text-align: center;
  background: var(--bg-soft);
  border-top: 1px solid var(--border);
}
.cta-strip h2 { margin-top: 0; }
.cta-strip .btn-primary { width: auto; }

/* ---------- footer ---------- */

.site-footer {
  border-top: 1px solid var(--border);
  background: #fafafe;
  margin-top: 40px;
  padding: 48px 0 32px;
  color: var(--ink-soft);
}
.footer-cols {
  display: grid;
  grid-template-columns: 1.4fr 1fr 1fr 1fr;
  gap: 28px;
}
.footer-cols h4 { color: var(--ink); margin: 0 0 10px; font-size: 0.95rem; }
.footer-cols ul { list-style: none; padding: 0; margin: 0; font-size: 0.92rem; }
.footer-cols li { margin: 4px 0; }
.footer-cols a { color: var(--ink-soft); }
.copyright {
  margin-top: 28px;
  font-size: 0.85rem;
  color: var(--ink-mute);
  text-align: center;
}
@media (max-width: 720px) {
  .footer-cols { grid-template-columns: 1fr 1fr; }
}