/* =============================================================
   1. Tokens
   ============================================================= */
:root {
  --bg: #f7f8fa;
  --surface: #ffffff;
  --ink: #1c2230;
  --ink-soft: #545b6b;
  --border: #e2e5eb;
  --accent: #2f6feb;
  --accent-ink: #ffffff;
  --accent-soft: #eaf1ff;
  --ok: #1a9a5c;
  --danger: #d64545;
  --radius: 14px;
  --radius-sm: 9px;
  --sans: "Inter", system-ui, -apple-system, "Segoe UI", sans-serif;
  --display: "Manrope", var(--sans);
  --ease-out: cubic-bezier(0.16, 1, 0.3, 1);
  --shadow: 0 1px 2px rgba(20, 24, 33, 0.04), 0 8px 24px rgba(20, 24, 33, 0.06);
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg: #12151c;
    --surface: #1a1e27;
    --ink: #eef1f6;
    --ink-soft: #a3aab8;
    --border: #2a2f3a;
    --accent: #6d9dff;
    --accent-ink: #0d1117;
    --accent-soft: #1c2740;
    --shadow: 0 1px 2px rgba(0, 0, 0, 0.3), 0 8px 24px rgba(0, 0, 0, 0.35);
  }
}

/* =============================================================
   2. Reset & base
   ============================================================= */
*, *::before, *::after { box-sizing: border-box; margin: 0; }
html { -webkit-text-size-adjust: 100%; tab-size: 2; scroll-behavior: smooth; }
body {
  font-family: var(--sans);
  font-size: 16px;
  line-height: 1.6;
  color: var(--ink);
  background: var(--bg);
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
  overflow-x: clip;
  overscroll-behavior-y: none;
}
img, svg, video { display: block; max-width: 100%; }
img { height: auto; }
button { font: inherit; color: inherit; cursor: pointer; border: 0; background: none; }
a { color: inherit; text-decoration: none; }
p { text-wrap: pretty; }
h1, h2, h3, h4 { text-wrap: balance; line-height: 1.15; letter-spacing: -0.01em; font-family: var(--display); }
ul { list-style: none; padding: 0; }
::selection { background: var(--accent); color: #fff; }
:focus-visible { outline: 2px solid var(--accent); outline-offset: 3px; border-radius: 4px; }

/* =============================================================
   3. Utilities
   ============================================================= */
.skip-link {
  position: fixed; top: -100px; left: 1rem;
  padding: .6rem 1rem; background: var(--surface); color: var(--ink);
  z-index: 9999; border-radius: 8px; font-weight: 600; box-shadow: var(--shadow);
}
.skip-link:focus { top: 1rem; }
.container { width: 100%; max-width: 880px; margin-inline: auto; padding-inline: 1.25rem; }
.container-wide { width: 100%; max-width: 1120px; margin-inline: auto; padding-inline: 1.25rem; }
.visually-hidden {
  position: absolute; width: 1px; height: 1px; overflow: hidden;
  clip: rect(0 0 0 0); white-space: nowrap;
}
.badge {
  display: inline-flex; align-items: center; gap: .4rem;
  font-size: .85rem; color: var(--ink-soft);
}
.badge svg { width: 16px; height: 16px; flex: none; }

/* =============================================================
   4. Header / nav
   ============================================================= */
.site-header {
  border-bottom: 1px solid var(--border);
  background: color-mix(in srgb, var(--bg) 85%, transparent);
  backdrop-filter: blur(6px);
  position: sticky; top: 0; z-index: 40;
}
.site-header .container-wide {
  display: flex; align-items: center; justify-content: space-between;
  min-height: 64px; gap: 1rem;
}
.logo {
  display: flex; align-items: center; gap: .55rem;
  font-family: var(--display); font-weight: 800; font-size: 1.05rem;
}
.logo svg { width: 26px; height: 26px; flex: none; color: var(--accent); }
.main-nav { display: flex; align-items: center; gap: 1.25rem; }
.main-nav a {
  font-size: .92rem; font-weight: 600; color: var(--ink-soft);
  transition: color .15s var(--ease-out);
}
.main-nav a:hover, .main-nav a:focus-visible { color: var(--accent); }
.main-nav .cta {
  background: var(--accent); color: var(--accent-ink);
  padding: .5rem .95rem; border-radius: 100px;
}
.main-nav .cta:hover { filter: brightness(1.08); color: var(--accent-ink); }

/* =============================================================
   5. Hero / H1
   ============================================================= */
.tool-hero { padding: 2.25rem 0 1.25rem; text-align: center; }
.tool-hero h1 { font-size: clamp(1.6rem, 4vw, 2.35rem); }
.tool-hero .subtitle { margin-top: .6rem; color: var(--ink-soft); font-size: 1.05rem; }
.breadcrumb { font-size: .85rem; color: var(--ink-soft); margin-bottom: .75rem; }
.breadcrumb a { color: var(--accent); }

/* =============================================================
   6. Tool card
   ============================================================= */
.tool-card {
  background: var(--surface); border: 1px solid var(--border);
  border-radius: var(--radius); box-shadow: var(--shadow);
  padding: 1.5rem; margin-top: 1rem;
}
.dropzone {
  border: 2px dashed var(--border); border-radius: var(--radius-sm);
  padding: 2.25rem 1.25rem; text-align: center; cursor: pointer;
  transition: border-color .15s var(--ease-out), background .15s var(--ease-out);
  display: flex; flex-direction: column; align-items: center; gap: .65rem;
}
.dropzone:hover, .dropzone.is-drag { border-color: var(--accent); background: var(--accent-soft); }
.dropzone svg { width: 40px; height: 40px; color: var(--accent); }
.dropzone strong { font-size: 1.02rem; }
.dropzone span { color: var(--ink-soft); font-size: .88rem; }
.dropzone input[type="file"] { display: none; }

.file-list { margin-top: 1rem; display: flex; flex-direction: column; gap: .5rem; }
.file-row {
  display: flex; align-items: center; gap: .75rem;
  border: 1px solid var(--border); border-radius: var(--radius-sm);
  padding: .55rem .75rem; background: var(--bg);
}
.file-row img.thumb { width: 42px; height: 56px; object-fit: cover; border-radius: 4px; border: 1px solid var(--border); background: #fff; }
.file-row .file-meta { flex: 1; min-width: 0; }
.file-row .file-name { font-size: .92rem; font-weight: 600; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.file-row .file-size { font-size: .8rem; color: var(--ink-soft); }
.file-row .file-actions { display: flex; gap: .35rem; }
.file-row button { padding: .3rem .5rem; border-radius: 7px; }
.file-row button:hover { background: var(--accent-soft); }
.file-row .move-btn, .file-row .del-btn { color: var(--ink-soft); }

.field { margin-top: 1rem; }
.field label { display: block; font-size: .88rem; font-weight: 600; margin-bottom: .35rem; }
.field input[type="text"], .field select {
  width: 100%; padding: .6rem .75rem; border: 1px solid var(--border);
  border-radius: var(--radius-sm); background: var(--surface); color: var(--ink); font: inherit;
}
.field .hint { font-size: .8rem; color: var(--ink-soft); margin-top: .3rem; }
.radio-row { display: flex; flex-wrap: wrap; gap: .6rem; }
.radio-row label {
  display: inline-flex; align-items: center; gap: .4rem;
  border: 1px solid var(--border); border-radius: 100px; padding: .45rem .85rem;
  font-size: .88rem; cursor: pointer; font-weight: 500;
}
.radio-row input { accent-color: var(--accent); }

.actions-row { display: flex; flex-wrap: wrap; gap: .65rem; margin-top: 1.25rem; }
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: .5rem;
  padding: .75rem 1.3rem; border-radius: 100px; font-weight: 700; font-size: .95rem;
  transition: transform .12s var(--ease-out), filter .15s var(--ease-out);
}
.btn:active { transform: scale(.98); }
.btn-primary { background: var(--accent); color: var(--accent-ink); }
.btn-primary:hover { filter: brightness(1.08); }
.btn-primary:disabled { opacity: .5; cursor: not-allowed; filter: none; }
.btn-secondary { background: var(--bg); color: var(--ink); border: 1px solid var(--border); }
.btn-secondary:hover { background: var(--accent-soft); }
.btn-link { color: var(--accent); font-weight: 600; font-size: .9rem; }

.progress-wrap { margin-top: 1.1rem; display: none; }
[data-state="loading-engine"] .progress-wrap,
[data-state="working"] .progress-wrap { display: block; }
.progress-label { font-size: .88rem; color: var(--ink-soft); margin-bottom: .4rem; }
.progress-track { height: 8px; border-radius: 100px; background: var(--border); overflow: hidden; }
.progress-bar { height: 100%; width: 0%; background: var(--accent); transition: width .2s var(--ease-out); }

.result-box {
  display: none; margin-top: 1.1rem; padding: 1.1rem; border-radius: var(--radius-sm);
  background: var(--accent-soft); border: 1px solid var(--border); text-align: center;
}
[data-state="done"] .result-box { display: block; }
.result-box .result-title { font-weight: 700; margin-bottom: .3rem; }
.result-box .result-meta { font-size: .85rem; color: var(--ink-soft); margin-bottom: .8rem; }
.result-list { display: flex; flex-direction: column; gap: .5rem; margin-bottom: .8rem; text-align: left; }
.result-list .file-row { background: var(--surface); }

.error-box {
  display: none; margin-top: 1.1rem; padding: 1rem; border-radius: var(--radius-sm);
  background: color-mix(in srgb, var(--danger) 10%, transparent);
  border: 1px solid color-mix(in srgb, var(--danger) 35%, var(--border)); color: var(--danger);
  font-size: .92rem;
}
[data-state="error"] .error-box { display: block; }
[data-state="idle"] .dropzone-hidden-when-files { }

.tool-card[data-state="working"] .dropzone,
.tool-card[data-state="loading-engine"] .dropzone { pointer-events: none; opacity: .6; }

.privacy-note {
  display: flex; align-items: center; gap: .5rem; justify-content: center;
  margin-top: 1rem; font-size: .85rem; color: var(--ink-soft); text-align: center;
}
.limits-note { text-align: center; font-size: .82rem; color: var(--ink-soft); margin-top: .35rem; }

/* =============================================================
   7. Ad slots
   ============================================================= */
.ad-slot {
  min-height: 90px; margin: 1.75rem auto; max-width: 880px;
  border: 1px dashed var(--border); border-radius: var(--radius-sm);
  display: flex; align-items: center; justify-content: center;
  color: var(--ink-soft); font-size: .78rem; letter-spacing: .04em; text-transform: uppercase;
}

/* =============================================================
   8. Content sections
   ============================================================= */
.section { padding: 1.75rem 0; }
.section h2 { font-size: 1.4rem; margin-bottom: .9rem; }
.steps { display: grid; gap: 1rem; grid-template-columns: 1fr; margin-top: 1rem; }
.step { display: flex; gap: .85rem; align-items: flex-start; }
.step .step-num {
  flex: none; width: 30px; height: 30px; border-radius: 50%;
  background: var(--accent-soft); color: var(--accent); font-weight: 800;
  display: flex; align-items: center; justify-content: center; font-size: .9rem;
}
.step h3 { font-size: 1rem; margin-bottom: .2rem; }
.step p { color: var(--ink-soft); font-size: .93rem; }
.seo-text p { margin-bottom: .85rem; color: var(--ink-soft); }
.seo-text strong { color: var(--ink); }

.faq details {
  border-bottom: 1px solid var(--border); padding: .9rem 0;
}
.faq summary {
  cursor: pointer; font-weight: 700; list-style: none; display: flex;
  justify-content: space-between; align-items: center; gap: 1rem;
}
.faq summary::-webkit-details-marker { display: none; }
.faq summary::after { content: "+"; font-size: 1.3rem; color: var(--accent); flex: none; }
.faq details[open] summary::after { content: "−"; }
.faq p { color: var(--ink-soft); margin-top: .6rem; font-size: .93rem; }

.related-tools { display: grid; gap: .85rem; grid-template-columns: 1fr; margin-top: 1rem; }
.related-card {
  display: flex; align-items: center; gap: .75rem;
  border: 1px solid var(--border); border-radius: var(--radius-sm);
  padding: .95rem; background: var(--surface); transition: border-color .15s var(--ease-out);
}
.related-card:hover { border-color: var(--accent); }
.related-card svg { width: 24px; height: 24px; color: var(--accent); flex: none; }
.related-card h3 { font-size: .95rem; }
.related-card p { font-size: .82rem; color: var(--ink-soft); }

/* =============================================================
   9. Home
   ============================================================= */
.home-hero { text-align: center; padding: 3rem 0 1.5rem; }
.home-hero h1 { font-size: clamp(1.9rem, 5vw, 2.9rem); }
.home-hero p { color: var(--ink-soft); margin-top: .8rem; font-size: 1.08rem; max-width: 640px; margin-inline: auto; }
.tools-grid {
  display: grid; grid-template-columns: 1fr; gap: 1rem; margin: 2rem 0;
}
.tool-tile {
  background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius);
  padding: 1.4rem; display: flex; flex-direction: column; gap: .6rem; box-shadow: var(--shadow);
  transition: transform .15s var(--ease-out), border-color .15s var(--ease-out);
}
.tool-tile:hover { transform: translateY(-3px); border-color: var(--accent); }
.tool-tile .tile-icon {
  width: 44px; height: 44px; border-radius: 12px; background: var(--accent-soft);
  color: var(--accent); display: flex; align-items: center; justify-content: center;
}
.tool-tile .tile-icon svg { width: 24px; height: 24px; }
.tool-tile h2 { font-size: 1.05rem; }
.tool-tile p { color: var(--ink-soft); font-size: .88rem; }

/* =============================================================
   10. Legal pages
   ============================================================= */
.legal-content h2 { margin-top: 1.5rem; font-size: 1.15rem; }
.legal-content p, .legal-content li { color: var(--ink-soft); margin-top: .6rem; font-size: .95rem; }
.legal-content ul { list-style: disc; padding-left: 1.3rem; }

/* =============================================================
   11. Cookie banner
   ============================================================= */
.cookie-banner {
  position: fixed; left: 1rem; right: 1rem; bottom: 1rem; z-index: 200;
  max-width: 620px; margin-inline: auto;
  background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius);
  box-shadow: var(--shadow); padding: 1.1rem 1.25rem; display: none;
}
.cookie-banner.is-visible { display: block; }
.cookie-banner p { font-size: .88rem; color: var(--ink-soft); margin-bottom: .8rem; }
.cookie-banner .cookie-actions { display: flex; flex-wrap: wrap; gap: .6rem; }

/* =============================================================
   12. Footer
   ============================================================= */
.site-footer { border-top: 1px solid var(--border); margin-top: 2rem; padding: 2rem 0; }
.footer-grid { display: flex; flex-direction: column; gap: 1.25rem; }
.footer-links { display: flex; flex-wrap: wrap; gap: 1rem; font-size: .85rem; color: var(--ink-soft); }
.footer-links a:hover { color: var(--accent); }
.footer-note { font-size: .8rem; color: var(--ink-soft); }
.footer-note a { color: var(--accent); font-weight: 600; }

/* =============================================================
   13. Responsive
   ============================================================= */
@media (min-width: 540px) {
  .tools-grid { grid-template-columns: repeat(2, 1fr); }
  .steps { grid-template-columns: repeat(3, 1fr); }
  .related-tools { grid-template-columns: repeat(2, 1fr); }
}
@media (min-width: 960px) {
  .tools-grid { grid-template-columns: repeat(3, 1fr); }
  .related-tools { grid-template-columns: repeat(3, 1fr); }
  .footer-grid { flex-direction: row; justify-content: space-between; align-items: flex-start; }
}

/* =============================================================
   14. Reduced motion
   ============================================================= */
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  .tool-tile:hover { transform: none; }
}

/* =============================================================
   15. OCR tool extras (preview image, result textarea, output buttons)
   ============================================================= */
.dropzone-preview { max-width: 220px; max-height: 220px; border-radius: var(--radius-sm); border: 1px solid var(--border); object-fit: contain; }
.result-textarea {
  width: 100%; min-height: 220px; resize: vertical; margin-top: .8rem;
  padding: .85rem; border: 1px solid var(--border); border-radius: var(--radius-sm);
  background: var(--surface); color: var(--ink); font: inherit; font-size: .93rem; line-height: 1.55;
}
.output-buttons { display: flex; flex-wrap: wrap; gap: .6rem; margin-top: .9rem; justify-content: center; }

/* =============================================================
   9. Editor de firma
   ============================================================= */
.editor { margin-top: 1.5rem; display: grid; gap: 1.5rem; }
.editor[hidden] { display: none; }
.editor-block { border-top: 1px solid var(--border); padding-top: 1.25rem; }
.editor-title { display: flex; align-items: center; gap: .6rem; font-size: 1.1rem; margin-bottom: .8rem; }
.editor-title .step-num {
  flex: none; width: 28px; height: 28px; border-radius: 50%;
  background: var(--accent-soft); color: var(--accent); font-weight: 800;
  display: flex; align-items: center; justify-content: center; font-size: .85rem;
}
.hint { font-size: .82rem; color: var(--ink-soft); margin-top: .3rem; }
.sig-tabs { display: flex; gap: .4rem; margin-bottom: .9rem; flex-wrap: wrap; }
.sig-tab {
  padding: .5rem .95rem; border-radius: 100px; border: 1px solid var(--border);
  background: var(--bg); font-weight: 600; font-size: .9rem; cursor: pointer; color: var(--ink);
}
.sig-tab.is-active { background: var(--accent); color: var(--accent-ink); border-color: var(--accent); }
.sig-panel[hidden] { display: none; }
.sig-pad {
  width: 100%; height: 180px; display: block; background: #fff; border-radius: var(--radius-sm);
  border: 2px dashed var(--border); touch-action: none; cursor: crosshair;
}
.sig-row { display: flex; justify-content: space-between; align-items: center; margin-top: .4rem; }
.sig-hint { font-size: .82rem; color: var(--ink-soft); }
.sig-colors { margin-top: .9rem; }
.check { display: flex; align-items: center; gap: .5rem; font-size: .9rem; margin-top: .6rem; }
.check input { accent-color: var(--accent); }
.field input[type="file"] { font-size: .9rem; }
.sig-preview, .sig-saved {
  display: block; max-height: 90px; max-width: 100%; margin-top: .8rem; padding: .4rem .8rem;
  background: #fff; border: 1px solid var(--border); border-radius: var(--radius-sm); object-fit: contain;
}
.sig-saved { margin-top: 0; max-height: 52px; align-self: center; }
.toolbar { display: flex; flex-wrap: wrap; gap: .5rem; margin-top: .8rem; align-items: center; }
.toolbar-input {
  flex: 1 1 180px; min-width: 0; padding: .65rem .8rem; border: 1px solid var(--border);
  border-radius: var(--radius-sm); background: var(--surface); color: var(--ink); font: inherit; font-size: .9rem;
}
.pager { display: flex; justify-content: center; align-items: center; gap: .9rem; margin: 1rem 0 .6rem; font-weight: 600; font-size: .92rem; }
.pager .btn { padding: .35rem .85rem; }
.pager .btn:disabled { opacity: .4; cursor: not-allowed; }
.stage-wrap { overflow-x: auto; display: flex; justify-content: center; background: color-mix(in srgb, var(--ink) 6%, var(--bg)); padding: .75rem; border-radius: var(--radius-sm); }
.stage { position: relative; box-shadow: 0 2px 14px rgba(0,0,0,.18); background: #fff; flex: none; }
.stage canvas { display: block; }
.overlay { position: absolute; inset: 0; touch-action: none; }
.placed { position: absolute; cursor: move; outline: 1px dashed transparent; touch-action: none; user-select: none; }
.placed img { width: 100%; height: 100%; display: block; pointer-events: none; }
.placed.is-selected { outline: 1.5px dashed var(--accent); background: color-mix(in srgb, var(--accent) 8%, transparent); }
.placed-handle {
  position: absolute; right: -8px; bottom: -8px; width: 16px; height: 16px; border-radius: 50%;
  background: var(--accent); border: 2px solid #fff; cursor: nwse-resize; display: none; touch-action: none;
}
.placed.is-selected .placed-handle { display: block; }
.status { margin-top: .7rem; font-size: .88rem; color: var(--ink-soft); text-align: center; min-height: 1.2em; }

/* =============================================================
   10. Editor de foto
   ============================================================= */
.inline-fields { display: flex; flex-wrap: wrap; gap: .9rem; }
.inline-fields .field { flex: 1 1 160px; }
.inline-fields[hidden] { display: none; }
.field input[type="number"] {
  width: 100%; padding: .65rem .8rem; border: 1px solid var(--border);
  border-radius: var(--radius-sm); background: var(--surface); color: var(--ink); font: inherit;
}
.foto-stage { display: flex; justify-content: center; padding: 1rem; margin-top: .8rem; border-radius: var(--radius-sm); background: color-mix(in srgb, var(--ink) 6%, var(--bg)); }
.foto-preview { display: block; background: #fff; box-shadow: 0 2px 14px rgba(0,0,0,.18); touch-action: none; cursor: grab; }
.foto-preview:active { cursor: grabbing; }
.controls { display: grid; gap: .6rem; margin-top: .8rem; }
.ctl { display: grid; grid-template-columns: 90px 1fr; align-items: center; gap: .8rem; font-size: .9rem; font-weight: 600; }
.ctl[hidden] { display: none; }
.ctl input[type="range"] { width: 100%; accent-color: var(--accent); }

/* =============================================================
   11. Calculadora de plazos
   ============================================================= */
.tool-card textarea {
  width: 100%; padding: .65rem .8rem; border: 1px solid var(--border); border-radius: var(--radius-sm);
  background: var(--surface); color: var(--ink); font: inherit; font-size: .9rem; resize: vertical;
}
.tool-card input[type="date"] {
  width: 100%; padding: .65rem .8rem; border: 1px solid var(--border); border-radius: var(--radius-sm);
  background: var(--surface); color: var(--ink); font: inherit;
}
.more { margin-top: 1rem; border-top: 1px solid var(--border); padding-top: .8rem; }
.more summary { cursor: pointer; font-weight: 600; font-size: .92rem; color: var(--accent); }
.more .check { margin-top: .5rem; }
.error-text { color: var(--danger); font-size: .88rem; min-height: 1.1em; margin-top: .5rem; }
.result-card {
  margin-top: 1.25rem; padding: 1.25rem; border-radius: var(--radius); background: var(--accent-soft);
  border: 1px solid var(--border);
}
.result-card[hidden] { display: none; }
.result-label { font-size: .85rem; font-weight: 600; color: var(--ink-soft); }
.result-date { font-family: var(--display); font-size: 1.6rem; font-weight: 800; margin: .15rem 0 .4rem; text-transform: capitalize; }
.result-left { font-weight: 700; font-size: .98rem; }
.result-left.is-ok { color: var(--ok); }
.result-left.is-soon { color: #b7791f; }
.result-left.is-late { color: var(--danger); }
.steps-list { margin: .9rem 0 0 1.1rem; font-size: .9rem; color: var(--ink-soft); display: grid; gap: .35rem; }
.related-tools { display: grid; gap: .8rem; grid-template-columns: repeat(auto-fit, minmax(240px, 1fr)); margin-top: 1rem; }
.related-card {
  display: block; padding: 1rem 1.1rem; border: 1px solid var(--border); border-radius: var(--radius-sm);
  background: var(--surface); transition: border-color .15s;
}
.related-card:hover { border-color: var(--accent); }
.related-card h3 { font-size: .98rem; margin-bottom: .2rem; }
.related-card p { font-size: .85rem; color: var(--ink-soft); }