/*
  Pagecraft — main.css
  Original design system. No framework, no external font requests.
  Mobile-first: base rules target small screens, min-width queries add up.

  DESIGN CONCEPT
  ----------------
  "The drafting table." Cool paper-white surfaces, ink-navy type, and a
  single signal-amber accent used the way a highlighter or a document
  tab-flag is used -- sparingly, to mark what matters. The recurring
  signature motif is a set of registration / crop marks -- the small
  corner alignment marks used in print production -- framing the upload
  dropzone and key surfaces. It's a literal artifact of the subject
  (preparing documents for output), not a decorative flourish.
*/

/* ============================= TOKENS ============================= */
:root {
  /* Color */
  --color-bg: #F7F8FA;
  --color-surface: #FFFFFF;
  --color-surface-alt: #EEF1F5;
  --color-ink: #161B33;
  --color-ink-soft: #4A5170;
  --color-ink-faint: #7B819C;
  --color-primary: #2B3A67;
  --color-primary-dark: #1D2747;
  --color-primary-light: #4A5B8C;
  --color-accent: #FFB000;
  --color-accent-dark: #CC8C00;
  --color-accent-ink: #2B1D00;
  --color-border: #DDE2EA;
  --color-border-strong: #C3CAD6;
  --color-success: #1A7F5A;
  --color-success-bg: #E7F5EF;
  --color-error: #C0392B;
  --color-error-bg: #FBEAE8;
  --color-warning: #9A6700;
  --color-warning-bg: #FFF4DE;

  /* Type */
  --font-sans: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  --font-mono: ui-monospace, "SF Mono", "Cascadia Code", "Roboto Mono", Consolas, "Courier New", monospace;
  --text-xs: 0.75rem;
  --text-sm: 0.875rem;
  --text-base: 1rem;
  --text-lg: 1.125rem;
  --text-xl: 1.25rem;
  --text-2xl: 1.5rem;
  --text-3xl: 1.875rem;
  --text-4xl: 2.375rem;
  --text-5xl: 3rem;

  /* Space (4px base) */
  --space-1: 0.25rem;
  --space-2: 0.5rem;
  --space-3: 0.75rem;
  --space-4: 1rem;
  --space-5: 1.5rem;
  --space-6: 2rem;
  --space-7: 3rem;
  --space-8: 4rem;
  --space-9: 6rem;

  /* Shape */
  --radius-sm: 6px;
  --radius-md: 10px;
  --radius-lg: 18px;
  --radius-full: 999px;

  /* Elevation */
  --shadow-sm: 0 1px 2px rgba(22, 27, 51, 0.06), 0 1px 1px rgba(22, 27, 51, 0.04);
  --shadow-md: 0 6px 16px rgba(22, 27, 51, 0.08), 0 2px 6px rgba(22, 27, 51, 0.05);
  --shadow-lg: 0 16px 40px rgba(22, 27, 51, 0.14), 0 4px 12px rgba(22, 27, 51, 0.06);

  /* Motion */
  --ease: cubic-bezier(0.4, 0, 0.2, 1);
  --duration-fast: 150ms;
  --duration-base: 250ms;
  --duration-slow: 450ms;

  --container-width: 1120px;
}

/* ============================== RESET ============================== */
*, *::before, *::after { box-sizing: border-box; }
* { margin: 0; }
html { -webkit-text-size-adjust: 100%; text-size-adjust: 100%; }
body {
  font-family: var(--font-sans);
  color: var(--color-ink);
  background: var(--color-bg);
  line-height: 1.55;
  -webkit-font-smoothing: antialiased;
  min-height: 100vh;
}
img, svg, video { display: block; max-width: 100%; }
a { color: inherit; text-decoration: none; }
button, input, textarea, select { font: inherit; color: inherit; }
button { cursor: pointer; background: none; border: none; }
ul, ol { list-style: none; padding: 0; }
h1, h2, h3, h4 { font-weight: 700; letter-spacing: -0.02em; line-height: 1.15; }

/* Visible, deliberate focus states everywhere -- never suppressed */
:focus-visible {
  outline: 2.5px solid var(--color-accent);
  outline-offset: 2px;
  border-radius: var(--radius-sm);
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.001ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.001ms !important;
    scroll-behavior: auto !important;
  }
}

/* ============================== LAYOUT ============================== */
.container {
  width: 100%;
  max-width: var(--container-width);
  margin-inline: auto;
  padding-inline: var(--space-4);
}
@media (min-width: 640px) { .container { padding-inline: var(--space-6); } }

.section { padding-block: var(--space-8); }
.section-alt { background: var(--color-surface-alt); }
.section-tight { padding-block: var(--space-6); }

.stack { display: flex; flex-direction: column; }
.cluster { display: flex; flex-wrap: wrap; align-items: center; }
.gap-1 { gap: var(--space-1); } .gap-2 { gap: var(--space-2); }
.gap-3 { gap: var(--space-3); } .gap-4 { gap: var(--space-4); }
.gap-5 { gap: var(--space-5); } .gap-6 { gap: var(--space-6); }

.visually-hidden {
  position: absolute; width: 1px; height: 1px; overflow: hidden;
  clip: rect(0 0 0 0); white-space: nowrap; border: 0; padding: 0; margin: -1px;
}

/* ============================ TYPOGRAPHY ============================ */
.eyebrow {
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  font-weight: 600;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--color-primary);
}
.h1 { font-size: var(--text-4xl); }
.h2 { font-size: var(--text-3xl); }
.h3 { font-size: var(--text-xl); }
@media (min-width: 768px) {
  .h1 { font-size: var(--text-5xl); }
  .h2 { font-size: var(--text-4xl); }
}
.lede { font-size: var(--text-lg); color: var(--color-ink-soft); line-height: 1.6; }
.text-soft { color: var(--color-ink-soft); }
.text-faint { color: var(--color-ink-faint); }
.text-sm { font-size: var(--text-sm); }
.text-xs { font-size: var(--text-xs); }
.mono { font-family: var(--font-mono); }

/* ============================== BUTTONS ============================== */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-2);
  padding: 0.75rem 1.375rem;
  border-radius: var(--radius-full);
  font-weight: 600;
  font-size: var(--text-base);
  border: 1.5px solid transparent;
  transition: transform var(--duration-fast) var(--ease),
              background-color var(--duration-fast) var(--ease),
              border-color var(--duration-fast) var(--ease),
              box-shadow var(--duration-fast) var(--ease);
  white-space: nowrap;
}
.btn:active { transform: translateY(1px); }
.btn-primary {
  background: var(--color-accent);
  color: var(--color-accent-ink);
  box-shadow: var(--shadow-sm);
}
.btn-primary:hover { background: var(--color-accent-dark); box-shadow: var(--shadow-md); }
.btn-secondary {
  background: var(--color-primary);
  color: #fff;
}
.btn-secondary:hover { background: var(--color-primary-dark); }
.btn-ghost {
  background: transparent;
  border-color: var(--color-border-strong);
  color: var(--color-ink);
}
.btn-ghost:hover { border-color: var(--color-primary); background: var(--color-surface-alt); }
.btn-sm { padding: 0.5rem 1rem; font-size: var(--text-sm); }
.btn-lg { padding: 0.9rem 1.75rem; font-size: var(--text-lg); }
.btn-block { width: 100%; }
.btn[disabled] { opacity: 0.55; cursor: not-allowed; }

/* ========================== SITE HEADER / NAV ========================== */
.site-header {
  position: sticky; top: 0; z-index: 40;
  background: rgba(247, 248, 250, 0.92);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--color-border);
}
.nav-row {
  display: flex; align-items: center; justify-content: space-between;
  padding-block: var(--space-3);
}
.brand {
  display: inline-flex; align-items: center; gap: var(--space-2);
  font-weight: 800; font-size: var(--text-lg); letter-spacing: -0.01em;
  color: var(--color-ink);
}
.brand-mark { width: 30px; height: 30px; flex-shrink: 0; }
.nav-links { display: none; align-items: center; gap: var(--space-6); }
.nav-links a { font-weight: 500; font-size: var(--text-sm); color: var(--color-ink-soft); transition: color var(--duration-fast) var(--ease); }
.nav-links a:hover { color: var(--color-ink); }
.nav-actions { display: flex; align-items: center; gap: var(--space-3); }
.nav-toggle { display: inline-flex; }
@media (min-width: 900px) {
  .nav-links { display: flex; }
  .nav-toggle { display: none; }
}
.mobile-menu {
  display: none; flex-direction: column; gap: var(--space-1);
  padding: var(--space-4) 0 var(--space-5);
  border-top: 1px solid var(--color-border);
}
.mobile-menu.is-open { display: flex; }
.mobile-menu a { padding: var(--space-3) var(--space-2); border-radius: var(--radius-sm); font-weight: 500; }
.mobile-menu a:hover { background: var(--color-surface-alt); }
@media (min-width: 900px) { .mobile-menu { display: none !important; } }

/* ============================ CROP MARKS ============================ */
/* Signature motif: registration-mark corners, borrowed from print production. */
.crop-frame { position: relative; }
.crop-frame::before,
.crop-frame::after,
.crop-frame .crop-tr,
.crop-frame .crop-bl {
  content: "";
  position: absolute;
  width: 18px; height: 18px;
  border: 2px solid var(--color-primary);
  opacity: 0.55;
  transition: border-color var(--duration-base) var(--ease), opacity var(--duration-base) var(--ease);
}
.crop-frame::before { top: -9px; left: -9px; border-right: none; border-bottom: none; }
.crop-frame::after { bottom: -9px; right: -9px; border-left: none; border-top: none; }
.crop-frame .crop-tr { top: -9px; right: -9px; border-left: none; border-bottom: none; }
.crop-frame .crop-bl { bottom: -9px; left: -9px; border-right: none; border-top: none; }
.crop-frame.is-active::before,
.crop-frame.is-active::after,
.crop-frame.is-active .crop-tr,
.crop-frame.is-active .crop-bl {
  border-color: var(--color-accent);
  opacity: 1;
}

/* ================================ HERO ================================ */
.hero { padding-block: var(--space-8) var(--space-7); text-align: center; }
.hero-inner { max-width: 640px; margin-inline: auto; }
.hero .eyebrow { justify-content: center; display: flex; margin-bottom: var(--space-4); }
.hero h1 { margin-bottom: var(--space-4); }
.hero .lede { max-width: 520px; margin-inline: auto; margin-bottom: var(--space-7); }

.dropzone {
  background: var(--color-surface);
  border: 1.5px dashed var(--color-border-strong);
  border-radius: var(--radius-lg);
  padding: var(--space-8) var(--space-5);
  max-width: 640px;
  margin-inline: auto;
  box-shadow: var(--shadow-md);
  transition: border-color var(--duration-base) var(--ease), background var(--duration-base) var(--ease);
  cursor: pointer;
}
.dropzone:hover, .dropzone.is-dragover {
  border-color: var(--color-accent);
  background: #FFFBF0;
}
.dropzone-icon { width: 44px; height: 44px; margin-inline: auto var(--space-4); color: var(--color-primary); }
.dropzone p { font-weight: 600; margin-bottom: var(--space-1); }
.dropzone .text-sm { margin-bottom: var(--space-5); }
.dropzone input[type="file"] { display: none; }

/* =========================== QUICK ACCESS CHIPS =========================== */
.chip-row { display: flex; flex-wrap: wrap; justify-content: center; gap: var(--space-2); margin-top: var(--space-6); }
.chip {
  display: inline-flex; align-items: center; gap: var(--space-2);
  padding: 0.5rem 1rem;
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-full);
  font-size: var(--text-sm); font-weight: 600;
  transition: border-color var(--duration-fast) var(--ease), transform var(--duration-fast) var(--ease);
}
.chip:hover { border-color: var(--color-primary); transform: translateY(-1px); }
.chip svg { width: 16px; height: 16px; }

/* =============================== TOOL GRID =============================== */
.category-block + .category-block { margin-top: var(--space-7); }
.category-head { display: flex; align-items: baseline; justify-content: space-between; margin-bottom: var(--space-4); }
.tool-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--space-3);
}
@media (min-width: 640px) { .tool-grid { grid-template-columns: repeat(3, 1fr); gap: var(--space-4); } }
@media (min-width: 960px) { .tool-grid { grid-template-columns: repeat(4, 1fr); } }

.tool-card {
  display: flex; flex-direction: column; gap: var(--space-3);
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: var(--space-4);
  transition: transform var(--duration-base) var(--ease), box-shadow var(--duration-base) var(--ease), border-color var(--duration-base) var(--ease);
}
.tool-card:hover { transform: translateY(-3px); box-shadow: var(--shadow-md); border-color: var(--color-border-strong); }
.tool-card-icon {
  width: 40px; height: 40px;
  display: inline-flex; align-items: center; justify-content: center;
  background: var(--color-surface-alt);
  border-radius: var(--radius-sm);
  color: var(--color-primary);
}
.tool-card-icon svg { width: 22px; height: 22px; }
.tool-card h3 { font-size: var(--text-base); font-weight: 700; }
.tool-card p { font-size: var(--text-sm); color: var(--color-ink-soft); }

/* ============================= HOW IT WORKS ============================= */
.steps { display: grid; gap: var(--space-5); }
@media (min-width: 768px) { .steps { grid-template-columns: repeat(3, 1fr); } }
.step-number {
  font-family: var(--font-mono); font-weight: 700; font-size: var(--text-sm);
  color: var(--color-accent-dark);
  margin-bottom: var(--space-2);
}
.step h3 { margin-bottom: var(--space-1); font-size: var(--text-lg); }
.step p { color: var(--color-ink-soft); font-size: var(--text-sm); }

/* ================================= CARDS ================================= */
.card {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: var(--space-5);
}

/* ================================= FAQ ================================= */
.faq-item { border-bottom: 1px solid var(--color-border); }
.faq-question {
  width: 100%; text-align: left;
  display: flex; align-items: center; justify-content: space-between; gap: var(--space-4);
  padding: var(--space-4) 0;
  font-weight: 600;
}
.faq-question svg { width: 18px; height: 18px; flex-shrink: 0; transition: transform var(--duration-base) var(--ease); color: var(--color-ink-faint); }
.faq-item.is-open .faq-question svg { transform: rotate(45deg); }
.faq-answer {
  max-height: 0; overflow: hidden;
  color: var(--color-ink-soft); font-size: var(--text-sm);
  transition: max-height var(--duration-base) var(--ease);
}
.faq-item.is-open .faq-answer { max-height: 20em; padding-bottom: var(--space-4); }

/* ================================ FOOTER ================================ */
.site-footer { border-top: 1px solid var(--color-border); padding-block: var(--space-7) var(--space-6); background: var(--color-surface); }
.footer-grid { display: grid; gap: var(--space-6); grid-template-columns: 1fr; margin-bottom: var(--space-6); }
@media (min-width: 720px) { .footer-grid { grid-template-columns: 1.4fr repeat(3, 1fr); } }
.footer-col h4 { font-size: var(--text-sm); margin-bottom: var(--space-3); }
.footer-col ul { display: flex; flex-direction: column; gap: var(--space-2); }
.footer-col a { font-size: var(--text-sm); color: var(--color-ink-soft); }
.footer-col a:hover { color: var(--color-ink); }
.footer-bottom {
  display: flex; flex-wrap: wrap; gap: var(--space-3);
  justify-content: space-between; align-items: center;
  padding-top: var(--space-5); border-top: 1px solid var(--color-border);
  font-size: var(--text-xs); color: var(--color-ink-faint);
}

/* =============================== TOOL PAGE =============================== */
.tool-page-head { text-align: center; padding-block: var(--space-7) var(--space-6); }
.breadcrumbs { font-size: var(--text-xs); color: var(--color-ink-faint); margin-bottom: var(--space-4); }
.breadcrumbs a:hover { color: var(--color-ink); }
.workspace {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: var(--space-6);
  box-shadow: var(--shadow-sm);
}
.file-list { display: flex; flex-direction: column; gap: var(--space-2); margin-block: var(--space-5); }
.file-row {
  display: flex; align-items: center; gap: var(--space-3);
  padding: var(--space-3);
  background: var(--color-surface-alt);
  border-radius: var(--radius-sm);
  font-size: var(--text-sm);
}
.file-row .file-icon { width: 20px; height: 20px; color: var(--color-primary); flex-shrink: 0; }
.file-row .file-name { flex: 1; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; font-weight: 600; }
.file-row .file-remove { color: var(--color-ink-faint); }
.file-row .file-remove:hover { color: var(--color-error); }

.progress-track {
  height: 6px; border-radius: var(--radius-full);
  background: var(--color-surface-alt);
  overflow: hidden; margin-block: var(--space-4);
}
.progress-fill {
  height: 100%; width: 0%;
  background: var(--color-accent);
  border-radius: var(--radius-full);
  transition: width var(--duration-base) var(--ease);
}

.related-tools { display: flex; flex-wrap: wrap; gap: var(--space-2); margin-top: var(--space-4); }

/* ============================== PRICING ============================== */
.pricing-grid { display: grid; grid-template-columns: 1fr; gap: var(--space-6); }
@media (min-width: 640px) { .pricing-grid { grid-template-columns: 1fr 1fr; } }

/* ================================= FORMS ================================= */
.field { display: flex; flex-direction: column; gap: var(--space-2); margin-bottom: var(--space-4); }
.field label { font-size: var(--text-sm); font-weight: 600; }
.field input[type="text"],
.field input[type="email"],
.field textarea {
  padding: 0.75rem 1rem;
  border: 1.5px solid var(--color-border-strong);
  border-radius: var(--radius-sm);
  background: var(--color-surface);
  transition: border-color var(--duration-fast) var(--ease);
}
.field input:focus, .field textarea:focus { border-color: var(--color-primary); }
.field textarea { min-height: 140px; resize: vertical; }
.field-grid-2 { display: grid; grid-template-columns: 1fr 1fr; gap: 0 var(--space-4); }

/* ================================ TOASTS ================================ */
.toast-stack {
  position: fixed; bottom: var(--space-5); right: var(--space-5); left: var(--space-5);
  display: flex; flex-direction: column; gap: var(--space-2);
  z-index: 100; pointer-events: none;
}
@media (min-width: 640px) { .toast-stack { left: auto; width: 360px; } }
.toast {
  pointer-events: auto;
  background: var(--color-ink); color: #fff;
  border-radius: var(--radius-sm);
  padding: var(--space-3) var(--space-4);
  font-size: var(--text-sm);
  box-shadow: var(--shadow-lg);
  animation: toast-in var(--duration-base) var(--ease);
}
.toast.toast-error { background: var(--color-error); }
.toast.toast-success { background: var(--color-success); }
@keyframes toast-in { from { opacity: 0; transform: translateY(8px); } to { opacity: 1; transform: translateY(0); } }

/* ================================ MOTION ================================ */
@keyframes fade-up { from { opacity: 0; transform: translateY(10px); } to { opacity: 1; transform: translateY(0); } }
.animate-in { animation: fade-up var(--duration-slow) var(--ease) both; }
.animate-in-delay-1 { animation-delay: 80ms; }
.animate-in-delay-2 { animation-delay: 160ms; }
.animate-in-delay-3 { animation-delay: 240ms; }

/* ================================ BADGES ================================ */
.badge {
  display: inline-flex; align-items: center; gap: var(--space-1);
  font-family: var(--font-mono); font-size: var(--text-xs); font-weight: 600;
  padding: 0.2rem 0.6rem; border-radius: var(--radius-full);
  background: var(--color-surface-alt); color: var(--color-ink-soft);
}
.badge-privacy { background: var(--color-success-bg); color: var(--color-success); }

/* ============================ COOKIE BANNER ============================ */
.cookie-banner {
  position: fixed; left: var(--space-4); right: var(--space-4); bottom: var(--space-4);
  z-index: 90;
  background: var(--color-ink); color: #fff;
  border-radius: var(--radius-md);
  padding: var(--space-5);
  box-shadow: var(--shadow-lg);
  display: none;
  max-width: 560px;
  margin-inline: auto;
}
.cookie-banner.is-visible { display: block; animation: fade-up var(--duration-slow) var(--ease) both; }
.cookie-banner p { font-size: var(--text-sm); color: #D7DAE5; margin-bottom: var(--space-4); }
.cookie-banner a { color: #fff; text-decoration: underline; }
.cookie-banner-actions { display: flex; gap: var(--space-3); flex-wrap: wrap; }

/* ================================ UTILITIES ================================ */
.text-center { text-align: center; }
.mt-6 { margin-top: var(--space-6); }
.mb-6 { margin-bottom: var(--space-6); }
.max-w-prose { max-width: 65ch; }