/* ============================================================
   Quire — design system
   Palette: parchment paper + deep ink + brass stamp accent
   Type: Fraunces (display) + IBM Plex Sans (body/UI)
   ============================================================ */

:root {
  --paper: #F6F3EC;
  --paper-soft: #EFEADC;
  --card: #FBF9F3;
  --ink: #1D2A24;
  --ink-soft: #4A564F;
  --ink-faint: #7C8880;
  --accent: #B8862E;
  --accent-deep: #8C5A18;
  --line: #DAD2BF;
  --line-strong: #C7BCA0;
  --success: #3F7D58;
  --success-bg: #E7EFE6;
  --error: #A6402F;
  --error-bg: #F5E7E2;
  --focus: #2D6E52;

  --serif: "Fraunces", "Iowan Old Style", Georgia, serif;
  --sans: "IBM Plex Sans", -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  --mono: "IBM Plex Mono", ui-monospace, SFMono-Regular, monospace;

  --radius-sm: 3px;
  --radius: 6px;
  --container: 1120px;
  --shadow-card: 0 1px 0 rgba(29,42,36,0.06);
}

[data-theme="dark"] {
  --paper: #171E1A;
  --paper-soft: #1E2621;
  --card: #1C241F;
  --ink: #EDEAE0;
  --ink-soft: #B7C0B9;
  --ink-faint: #7C8880;
  --line: #33403A;
  --line-strong: #445048;
  --success-bg: #1E2E23;
  --error-bg: #332420;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  font-family: var(--sans);
  font-size: 16px;
  line-height: 1.55;
  -webkit-font-smoothing: antialiased;
}

h1, h2, h3, h4 {
  font-family: var(--serif);
  font-weight: 600;
  line-height: 1.15;
  margin: 0 0 0.5em;
  color: var(--ink);
}
h1 { font-size: clamp(2.1rem, 4vw, 3.2rem); font-weight: 500; letter-spacing: -0.01em; }
h2 { font-size: clamp(1.5rem, 2.6vw, 2.1rem); }
h3 { font-size: 1.25rem; }
p { margin: 0 0 1em; max-width: 68ch; color: var(--ink-soft); }
a { color: var(--accent-deep); text-decoration: none; }
a:hover { text-decoration: underline; }
:focus-visible { outline: 2px solid var(--focus); outline-offset: 2px; }

img { max-width: 100%; display: block; }

.container { max-width: var(--container); margin: 0 auto; padding: 0 24px; }
.section { padding: 64px 0; }
.section-tight { padding: 40px 0; }

/* --- Hairline rule, used to separate categories like tabs in a filed folder --- */
.rule { border: none; border-top: 1px solid var(--line); margin: 48px 0; }

/* --- Buttons --- */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 8px;
  font-family: var(--sans); font-size: 0.95rem; font-weight: 500;
  padding: 11px 20px; border-radius: var(--radius-sm);
  border: 1px solid transparent; cursor: pointer; transition: background .15s ease, border-color .15s ease;
  text-decoration: none;
}
.btn:hover { text-decoration: none; }
.btn-primary { background: var(--ink); color: var(--paper); }
.btn-primary:hover { background: var(--accent-deep); }
.btn-outline { background: transparent; border-color: var(--line-strong); color: var(--ink); }
.btn-outline:hover { border-color: var(--ink); }
.btn-accent { background: var(--accent); color: #fff; }
.btn-accent:hover { background: var(--accent-deep); }
.btn:disabled { opacity: .45; cursor: not-allowed; }
.btn-sm { padding: 7px 14px; font-size: 0.85rem; }
.btn-block { width: 100%; }

/* ============ Header ============ */
.site-header {
  position: sticky; top: 0; z-index: 50;
  background: var(--paper); border-bottom: 1px solid var(--line);
}
.site-header .container { display: flex; align-items: center; justify-content: space-between; height: 68px; }
.logo { font-family: var(--serif); font-size: 1.35rem; font-weight: 600; color: var(--ink); display: flex; align-items: center; gap: 8px; }
.logo-mark { width: 22px; height: 22px; flex-shrink: 0; }
.nav { display: flex; align-items: center; gap: 28px; }
.nav a { color: var(--ink-soft); font-size: 0.93rem; }
.nav a:hover { color: var(--ink); text-decoration: none; }
.nav-actions { display: flex; align-items: center; gap: 12px; }
.theme-toggle { background: none; border: 1px solid var(--line-strong); border-radius: var(--radius-sm); width: 36px; height: 36px; display:flex; align-items:center; justify-content:center; cursor: pointer; color: var(--ink-soft); }
.nav-dropdown { position: relative; }
.nav-dropdown-panel {
  display: none; position: absolute; top: 36px; left: -20px; background: var(--card);
  border: 1px solid var(--line); border-radius: var(--radius); padding: 14px;
  min-width: 560px; box-shadow: 0 10px 30px rgba(29,42,36,0.12);
  grid-template-columns: repeat(3, 1fr); gap: 4px 20px;
}
.nav-dropdown:hover .nav-dropdown-panel, .nav-dropdown:focus-within .nav-dropdown-panel { display: grid; }
.nav-dropdown-panel a { display: block; padding: 6px 0; font-size: 0.88rem; color: var(--ink-soft); }
.nav-dropdown-panel a:hover { color: var(--accent-deep); }
.nav-dropdown-cat { font-family: var(--serif); font-size: 0.8rem; color: var(--ink-faint); margin: 10px 0 2px; }
.hamburger { display: none; background: none; border: none; cursor: pointer; }
.mobile-nav { display: none; }

@media (max-width: 880px) {
  .nav { display: none; }
  .hamburger { display: block; }
  .mobile-nav.open {
    display: block; position: fixed; inset: 68px 0 0 0; background: var(--paper);
    overflow-y: auto; padding: 24px; z-index: 49;
  }
  .mobile-nav a { display: block; padding: 12px 0; border-bottom: 1px solid var(--line); font-size: 1.05rem; color: var(--ink); }
}

/* ============ Hero ============ */
.hero { padding: 76px 0 56px; }
.hero-eyebrow { font-family: var(--mono); font-size: 0.8rem; color: var(--accent-deep); margin-bottom: 14px; }
.hero h1 { max-width: 15ch; }
.hero .lede { font-size: 1.15rem; max-width: 52ch; margin-bottom: 28px; }
.hero-actions { display: flex; gap: 14px; flex-wrap: wrap; margin-bottom: 8px; }

/* ============ Tool grid ============ */
.tool-category { margin-bottom: 8px; }
.tool-category-label { font-family: var(--serif); font-size: 1.4rem; margin-bottom: 4px; }
.tool-category-count { color: var(--ink-faint); font-size: 0.88rem; margin-bottom: 20px; }
.tool-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 14px; margin-bottom: 56px; }
@media (max-width: 880px) { .tool-grid { grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 560px) { .tool-grid { grid-template-columns: 1fr; } }

.tool-card {
  position: relative;
  background: var(--card); border: 1px solid var(--line);
  padding: 18px 18px 16px; border-radius: var(--radius-sm);
  display: flex; flex-direction: column; gap: 10px;
  transition: border-color .15s ease, transform .1s ease;
}
.tool-card:hover { border-color: var(--accent); text-decoration: none; }
.tool-card::before {
  content: ""; position: absolute; top: 0; right: 0; width: 14px; height: 14px;
  background: linear-gradient(135deg, transparent 50%, var(--line) 50%);
}
.tool-card-icon { width: 30px; height: 30px; color: var(--accent-deep); }
.tool-card-name { font-family: var(--serif); font-size: 1.05rem; color: var(--ink); font-weight: 600; }
.tool-card-desc { font-size: 0.86rem; color: var(--ink-faint); margin: 0; }
.tool-card-tag {
  font-family: var(--mono); font-size: 0.68rem; color: var(--ink-faint);
  border: 1px solid var(--line); border-radius: 2px; padding: 2px 6px; display: inline-block; width: fit-content;
}

/* ============ Search filter ============ */
.tool-search { margin-bottom: 40px; }
.tool-search input {
  width: 100%; max-width: 420px; padding: 11px 14px; font-family: var(--sans);
  border: 1px solid var(--line-strong); border-radius: var(--radius-sm); background: var(--card); color: var(--ink);
  font-size: 0.95rem;
}

/* ============ Why choose / steps ============ */
.feature-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 28px; }
@media (max-width: 880px) { .feature-grid { grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 560px) { .feature-grid { grid-template-columns: 1fr; } }
.feature { border-top: 2px solid var(--ink); padding-top: 14px; }
.feature h3 { font-size: 1rem; margin-bottom: 6px; }
.feature p { font-size: 0.9rem; }

.steps { display: grid; grid-template-columns: repeat(3, 1fr); gap: 28px; }
@media (max-width: 720px) { .steps { grid-template-columns: 1fr; } }
.step { display: flex; gap: 16px; }
.step-num { font-family: var(--serif); font-size: 1.8rem; color: var(--line-strong); flex-shrink: 0; line-height: 1; }
.step h3 { font-size: 1rem; margin-bottom: 6px; }
.step p { font-size: 0.9rem; }

/* ============ FAQ ============ */
.faq-item { border-bottom: 1px solid var(--line); }
.faq-q {
  width: 100%; text-align: left; background: none; border: none; cursor: pointer;
  padding: 18px 0; font-family: var(--sans); font-size: 1rem; font-weight: 500; color: var(--ink);
  display: flex; justify-content: space-between; align-items: center; gap: 16px;
}
.faq-q .plus { font-family: var(--serif); font-size: 1.3rem; color: var(--accent-deep); flex-shrink: 0; transition: transform .15s ease; }
.faq-item.open .plus { transform: rotate(45deg); }
.faq-a { max-height: 0; overflow: hidden; transition: max-height .2s ease; }
.faq-item.open .faq-a { max-height: 400px; }
.faq-a p { padding-bottom: 18px; font-size: 0.93rem; }

/* ============ Breadcrumbs ============ */
.breadcrumbs { font-size: 0.82rem; color: var(--ink-faint); margin-bottom: 20px; }
.breadcrumbs a { color: var(--ink-faint); }
.breadcrumbs a:hover { color: var(--accent-deep); }

/* ============ Tool page: uploader ============ */
.tool-hero { padding: 40px 0 24px; }
.tool-hero .short { font-size: 1.05rem; }

.dropzone {
  border: 2px dashed var(--line-strong); border-radius: var(--radius);
  background: var(--card); padding: 48px 24px; text-align: center; cursor: pointer;
  transition: border-color .15s ease, background .15s ease;
}
.dropzone.dragover { border-color: var(--accent); background: var(--paper-soft); }
.dropzone-icon { width: 40px; height: 40px; margin: 0 auto 14px; color: var(--accent-deep); }
.dropzone p { margin: 0 0 4px; font-size: 0.95rem; }
.dropzone .hint { font-size: 0.82rem; color: var(--ink-faint); }
.dropzone input[type=file] { display: none; }

.file-list { margin: 20px 0; display: flex; flex-direction: column; gap: 8px; }
.file-row {
  display: flex; align-items: center; gap: 12px; padding: 10px 14px;
  background: var(--card); border: 1px solid var(--line); border-radius: var(--radius-sm);
}
.file-row .name { flex: 1; font-size: 0.9rem; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.file-row .size { font-size: 0.78rem; color: var(--ink-faint); font-family: var(--mono); }
.file-row .remove { background: none; border: none; cursor: pointer; color: var(--ink-faint); font-size: 1.1rem; }
.file-row .remove:hover { color: var(--error); }
.file-row.dragging { opacity: .5; }

.tool-controls { display: flex; flex-wrap: wrap; gap: 12px; align-items: center; margin: 18px 0; }
.field { display: flex; flex-direction: column; gap: 4px; }
.field label { font-size: 0.8rem; color: var(--ink-faint); }
.field input[type=text], .field input[type=number], .field select {
  padding: 8px 10px; border: 1px solid var(--line-strong); border-radius: var(--radius-sm);
  background: var(--card); color: var(--ink); font-family: var(--sans); font-size: 0.9rem;
}

.progress-wrap { margin: 18px 0; display: none; }
.progress-wrap.active { display: block; }
.progress-track { height: 6px; background: var(--line); border-radius: 3px; overflow: hidden; }
.progress-fill { height: 100%; width: 0%; background: var(--accent); transition: width .2s ease; }
.progress-label { font-size: 0.82rem; color: var(--ink-faint); margin-top: 6px; }

.state-panel { padding: 16px 18px; border-radius: var(--radius-sm); margin: 18px 0; display: none; }
.state-panel.active { display: block; }
.state-success { background: var(--success-bg); border: 1px solid var(--success); }
.state-success strong { color: var(--success); }
.state-error { background: var(--error-bg); border: 1px solid var(--error); }
.state-error strong { color: var(--error); }
.state-notice { background: var(--paper-soft); border: 1px solid var(--line-strong); }

.result-actions { display: flex; gap: 12px; margin-top: 10px; flex-wrap: wrap; }

.privacy-note {
  display: flex; gap: 10px; align-items: flex-start; font-size: 0.85rem; color: var(--ink-faint);
  border-top: 1px solid var(--line); padding-top: 16px; margin-top: 24px;
}

/* ============ Related tools ============ */
.related-list { display: flex; gap: 10px; flex-wrap: wrap; }
.related-list a {
  border: 1px solid var(--line); border-radius: var(--radius-sm); padding: 8px 14px;
  font-size: 0.85rem; color: var(--ink);
}
.related-list a:hover { border-color: var(--accent); text-decoration: none; }

/* ============ Pricing ============ */
.pricing-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; }
@media (max-width: 880px) { .pricing-grid { grid-template-columns: 1fr; } }
.price-card { border: 1px solid var(--line); border-radius: var(--radius); padding: 28px; background: var(--card); }
.price-card.featured { border-color: var(--ink); border-width: 2px; }
.price-card .plan { font-family: var(--serif); font-size: 1.15rem; margin-bottom: 6px; }
.price-card .amount { font-family: var(--serif); font-size: 2.1rem; margin-bottom: 4px; }
.price-card .amount span { font-size: 0.9rem; color: var(--ink-faint); font-family: var(--sans); }
.price-card ul { list-style: none; padding: 0; margin: 18px 0; display: flex; flex-direction: column; gap: 8px; }
.price-card li { font-size: 0.88rem; color: var(--ink-soft); padding-left: 18px; position: relative; }
.price-card li::before { content: "—"; position: absolute; left: 0; color: var(--accent-deep); }

/* ============ Footer ============ */
.site-footer { border-top: 1px solid var(--line); padding: 48px 0 28px; margin-top: 40px; }
.footer-grid { display: grid; grid-template-columns: 1.4fr 1fr 1fr 1fr; gap: 32px; margin-bottom: 36px; }
@media (max-width: 720px) { .footer-grid { grid-template-columns: 1fr 1fr; } }
.footer-col h4 { font-family: var(--mono); font-size: 0.78rem; text-transform: none; color: var(--ink-faint); margin-bottom: 12px; font-weight: 500; }
.footer-col a { display: block; font-size: 0.87rem; color: var(--ink-soft); padding: 4px 0; }
.footer-col a:hover { color: var(--accent-deep); }
.footer-bottom { display: flex; justify-content: space-between; align-items: center; flex-wrap: wrap; gap: 12px; border-top: 1px solid var(--line); padding-top: 20px; font-size: 0.8rem; color: var(--ink-faint); }

/* ============ Misc pages ============ */
.plain-page { padding: 56px 0; }
.plain-page h2 { margin-top: 1.4em; }
.contact-form { display: flex; flex-direction: column; gap: 14px; max-width: 480px; }
.contact-form input, .contact-form textarea {
  padding: 10px 12px; border: 1px solid var(--line-strong); border-radius: var(--radius-sm);
  background: var(--card); color: var(--ink); font-family: var(--sans); font-size: 0.92rem;
}

.notice-banner {
  background: var(--paper-soft); border: 1px solid var(--line-strong); border-radius: var(--radius-sm);
  padding: 14px 18px; font-size: 0.88rem; color: var(--ink-soft); margin: 18px 0;
}