/* ==========================================================================
   VazCell Tools — hoja de estilos
   Sistema de diseño tomado de vazcell.com (tokens, tipografías y componentes)
   ========================================================================== */
@font-face { font-family: 'Space Grotesk'; font-weight: 400; font-display: swap; src: url('../vendor/fonts/space-grotesk-400.woff2') format('woff2'); }
@font-face { font-family: 'Space Grotesk'; font-weight: 500; font-display: swap; src: url('../vendor/fonts/space-grotesk-500.woff2') format('woff2'); }
@font-face { font-family: 'Space Grotesk'; font-weight: 600; font-display: swap; src: url('../vendor/fonts/space-grotesk-600.woff2') format('woff2'); }
@font-face { font-family: 'Space Grotesk'; font-weight: 700; font-display: swap; src: url('../vendor/fonts/space-grotesk-700.woff2') format('woff2'); }
@font-face { font-family: 'Geist Sans'; font-weight: 400; font-display: swap; src: url('../vendor/fonts/geist-sans-400.woff2') format('woff2'); }
@font-face { font-family: 'Geist Sans'; font-weight: 500; font-display: swap; src: url('../vendor/fonts/geist-sans-500.woff2') format('woff2'); }
@font-face { font-family: 'Geist Sans'; font-weight: 600; font-display: swap; src: url('../vendor/fonts/geist-sans-600.woff2') format('woff2'); }
@font-face { font-family: 'JetBrains Mono'; font-weight: 400; font-display: swap; src: url('../vendor/fonts/jetbrains-mono-400.woff2') format('woff2'); }
@font-face { font-family: 'JetBrains Mono'; font-weight: 500; font-display: swap; src: url('../vendor/fonts/jetbrains-mono-500.woff2') format('woff2'); }
@font-face { font-family: 'JetBrains Mono'; font-weight: 600; font-display: swap; src: url('../vendor/fonts/jetbrains-mono-600.woff2') format('woff2'); }

/* --- Tokens (idénticos a vazcell.com) ----------------------------------- */
:root {
  color-scheme: light;
  --primary: #2563eb;
  --primary-dark: #1d4ed8;
  --primary-soft: #dbeafe;
  --accent: #f97316;
  --accent-dark: #c2410c;
  --heading: #0f172a;
  --body: #374151;
  --muted: #6b7280;
  --subtle: #6b7280;
  --bg: #ffffff;
  --surface: #f8fafc;
  --surface2: #f1f5f9;
  --border: #e5e7eb;
  --border2: #d1d5db;
  --green: #22c55e;
  --green-bg: #dcfce7;
  --green-text: #16a34a;
  --red: #dc2626;
  --red-bg: #fee2e2;
  --amber: #d97706;
  --amber-bg: #fef3c7;
  --on-primary: #ffffff;
  --shadow: 0 1px 2px rgba(15, 23, 42, .06), 0 8px 24px -12px rgba(15, 23, 42, .18);
  --shadow-lg: 0 20px 50px -20px rgba(15, 23, 42, .35);
  --glow: 0 10px 30px -10px rgba(37, 99, 235, .55);

  --font-sans: 'Geist Sans', 'Avenir Next', Avenir, 'Segoe UI', system-ui, sans-serif;
  --font-display: 'Space Grotesk', 'Trebuchet MS', 'Avenir Next', Avenir, sans-serif;
  --font-mono: 'JetBrains Mono', 'SFMono-Regular', Consolas, 'Liberation Mono', monospace;
  --radius: 10px;
  --radius-lg: 16px;
  --container: 1280px;
}
:root[data-theme="dark"] {
  color-scheme: dark;
  --primary-soft: #1e3a8a;
  --heading: #f8fafc;
  --body: #cbd5e1;
  --muted: #94a3b8;
  --subtle: #94a3b8;
  --bg: #0b0f19;
  --surface: #131929;
  --surface2: #1e2a3b;
  --border: #1e2a3b;
  --border2: #2d3f55;
  --green-bg: #052e16;
  --green-text: #4ade80;
  --red: #f87171;
  --red-bg: #450a0a;
  --amber: #fbbf24;
  --amber-bg: #451a03;
  --shadow: 0 1px 2px rgba(0, 0, 0, .3), 0 8px 24px -12px rgba(0, 0, 0, .6);
  --shadow-lg: 0 20px 50px -20px rgba(0, 0, 0, .7);
}
@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) {
    color-scheme: dark;
    --primary-soft: #1e3a8a;
    --heading: #f8fafc;
    --body: #cbd5e1;
    --muted: #94a3b8;
    --subtle: #94a3b8;
    --bg: #0b0f19;
    --surface: #131929;
    --surface2: #1e2a3b;
    --border: #1e2a3b;
    --border2: #2d3f55;
    --green-bg: #052e16;
    --green-text: #4ade80;
    --red: #f87171;
    --red-bg: #450a0a;
    --amber: #fbbf24;
    --amber-bg: #451a03;
    --shadow: 0 1px 2px rgba(0, 0, 0, .3), 0 8px 24px -12px rgba(0, 0, 0, .6);
    --shadow-lg: 0 20px 50px -20px rgba(0, 0, 0, .7);
  }
}

/* --- Base ---------------------------------------------------------------- */
*, *::before, *::after { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; scroll-behavior: smooth; }
body {
  margin: 0; min-height: 100vh; display: flex; flex-direction: column;
  font-family: var(--font-sans); font-size: 16px; line-height: 1.6; color: var(--body);
  background: var(--bg); -webkit-font-smoothing: antialiased;
  transition: background-color .3s, color .3s;
}
h1, h2, h3, h4 { font-family: var(--font-display); color: var(--heading); line-height: 1.1; letter-spacing: -.02em; margin: 0 0 .5em; font-weight: 700; }
h1 { font-size: clamp(2.2rem, 5vw, 3.6rem); }
h2 { font-size: clamp(1.6rem, 3.2vw, 2.4rem); }
h3 { font-size: 1.1rem; font-weight: 600; letter-spacing: -.01em; }
p { margin: 0 0 1em; }
a { color: var(--primary); }
strong { font-weight: 600; color: var(--heading); }
button { font-family: inherit; }
code { font-family: var(--font-mono); font-size: .9em; }
:focus-visible { outline: 2px solid var(--primary); outline-offset: 3px; }
.container { width: 100%; max-width: var(--container); margin: 0 auto; padding-inline: 20px; }
.hidden, [hidden] { display: none !important; }
.sr-only { position: absolute; width: 1px; height: 1px; overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; }
.muted { color: var(--muted); }
.small { font-size: .875rem; }
.label-mono { font-family: var(--font-mono); font-size: .68rem; font-weight: 600; letter-spacing: .14em; text-transform: uppercase; color: var(--primary); }
.label-mono--accent { color: var(--accent); }
.label-mono--muted { color: var(--muted); }

/* --- Cabecera ------------------------------------------------------------ */
.topbar { position: sticky; top: 0; z-index: 20; background: color-mix(in srgb, var(--bg) 85%, transparent); backdrop-filter: blur(14px); -webkit-backdrop-filter: blur(14px); border-bottom: 1px solid var(--border); }
.topbar__inner { display: flex; align-items: center; justify-content: space-between; gap: 16px; min-height: 68px; }
.brand { display: flex; align-items: center; gap: 10px; text-decoration: none; }
.brand img { height: 34px; width: auto; display: block; }
.brand__name { font-family: var(--font-mono); font-size: .68rem; font-weight: 600; letter-spacing: .14em; text-transform: uppercase; color: var(--primary); border: 1px solid var(--border2); border-radius: 999px; padding: 4px 10px; }
.topnav { display: flex; align-items: center; gap: 22px; }
.topnav > a:not(.btn) { color: var(--body); text-decoration: none; font-weight: 500; font-size: .92rem; }
.topnav > a:not(.btn):hover { color: var(--heading); }
.topnav__cta { padding: 9px 16px; }
.status-pill { display: inline-flex; align-items: center; gap: 8px; font-family: var(--font-mono); font-size: .62rem; letter-spacing: .1em; text-transform: uppercase; color: var(--muted); border: 1px solid var(--border); background: var(--surface); padding: 7px 12px; border-radius: 999px; white-space: nowrap; }
.status-pill__dot { width: 7px; height: 7px; border-radius: 50%; background: var(--muted); }
.status-pill.is-online .status-pill__dot { background: var(--green); box-shadow: 0 0 0 3px var(--green-bg); }
.status-pill.is-offline .status-pill__dot { background: var(--accent); }
.theme-toggle { width: 38px; height: 38px; border-radius: 999px; border: 1px solid var(--border); background: var(--surface); color: var(--body); cursor: pointer; display: grid; place-items: center; }
.theme-toggle:hover { border-color: var(--border2); color: var(--heading); }
.theme-toggle svg { width: 17px; height: 17px; }
@media (max-width: 760px) {
  .topnav { gap: 10px; }
  .topnav > a:not(.btn), .status-pill { display: none; }
}

/* --- Hero ---------------------------------------------------------------- */
.hero { padding: 64px 0 40px; display: grid; grid-template-columns: 1fr; gap: 36px; align-items: center; }
@media (min-width: 980px) { .hero { grid-template-columns: 1.05fr .95fr; padding: 80px 0 56px; } }
.hero__pill { display: inline-flex; align-items: center; gap: 8px; font-family: var(--font-mono); font-size: .66rem; letter-spacing: .14em; text-transform: uppercase; color: var(--primary); border: 1px solid color-mix(in srgb, var(--primary) 35%, var(--border)); background: color-mix(in srgb, var(--primary) 8%, var(--bg)); border-radius: 999px; padding: 7px 14px; margin-bottom: 26px; }
.hero__pill::before { content: ''; width: 6px; height: 6px; border-radius: 50%; background: var(--primary); box-shadow: 0 0 0 3px color-mix(in srgb, var(--primary) 25%, transparent); }
.hero h1 { max-width: 15ch; margin-bottom: 20px; }
.hero h1 em { font-style: normal; color: var(--primary); }
.hero__lead { max-width: 54ch; font-size: 1.05rem; color: var(--body); margin-bottom: 26px; }
.hero__actions { display: flex; flex-wrap: wrap; gap: 12px; margin-bottom: 26px; }
.guarantees { display: grid; grid-template-columns: repeat(auto-fit, minmax(150px, 1fr)); gap: 10px; }
.guarantee { border: 1px solid var(--border); background: var(--surface); border-radius: 12px; padding: 12px 14px; font-size: .85rem; color: var(--body); }
.guarantee .label-mono { display: flex; align-items: center; gap: 6px; margin-bottom: 6px; }
.guarantee .label-mono svg { width: 13px; height: 13px; }

/* Panel ilustrativo del hero */
.hero__visual { position: relative; border: 1px solid var(--border); background: linear-gradient(160deg, var(--surface) 0%, var(--bg) 100%); border-radius: 20px; padding: 22px; box-shadow: var(--shadow-lg); overflow: hidden; }
.hero__visual::before { content: ''; position: absolute; inset: auto -60px -80px auto; width: 240px; height: 240px; border-radius: 50%; background: radial-gradient(circle, color-mix(in srgb, var(--primary) 28%, transparent), transparent 70%); pointer-events: none; }
.flow { display: grid; gap: 10px; position: relative; }
.flow__step { display: flex; align-items: center; gap: 12px; border: 1px solid var(--border); background: var(--bg); border-radius: 12px; padding: 12px 14px; font-size: .9rem; color: var(--body); }
.flow__step strong { display: block; font-size: .92rem; }
.flow__icon { flex: none; width: 36px; height: 36px; border-radius: 10px; background: var(--primary); color: #fff; display: grid; place-items: center; }
.flow__icon svg { width: 18px; height: 18px; }
.flow__icon--accent { background: var(--accent); }
.flow__icon--ok { background: var(--green-text); }
.flow__arrow { text-align: center; color: var(--muted); line-height: 0; }
.flow__arrow svg { width: 16px; height: 16px; transform: rotate(90deg); }
.flow__tag { position: absolute; top: -10px; right: -6px; font-family: var(--font-mono); font-size: .6rem; letter-spacing: .12em; text-transform: uppercase; background: var(--heading); color: var(--bg); padding: 6px 10px; border-radius: 8px; }
.flow__net { margin-top: 14px; border: 1px dashed var(--border2); border-radius: 12px; padding: 10px 14px; display: flex; align-items: center; justify-content: space-between; gap: 10px; font-family: var(--font-mono); font-size: .66rem; letter-spacing: .1em; text-transform: uppercase; color: var(--muted); }
.flow__net b { color: var(--green-text); font-weight: 600; }

/* Cifras */
.stats { display: grid; grid-template-columns: repeat(auto-fit, minmax(180px, 1fr)); gap: 24px; padding: 28px 0; border-top: 1px solid var(--border); border-bottom: 1px solid var(--border); margin: 10px 0 0; }
.stat-big { padding-left: 0; }
.stat-big + .stat-big { border-left: 1px solid var(--border); padding-left: 24px; }
.stat-big b { display: block; font-family: var(--font-display); font-size: clamp(2rem, 4vw, 2.8rem); font-weight: 700; letter-spacing: -.03em; color: var(--heading); line-height: 1; }
.stat-big b.is-primary { color: var(--primary); }
.stat-big span { display: block; margin-top: 8px; font-family: var(--font-mono); font-size: .64rem; letter-spacing: .14em; text-transform: uppercase; color: var(--muted); }
@media (max-width: 640px) { .stat-big + .stat-big { border-left: 0; padding-left: 0; } }

/* --- Secciones y rejilla de herramientas --------------------------------- */
.section { padding: 56px 0; }
.section + .section { border-top: 1px solid var(--border); }
.section__head { display: flex; align-items: flex-end; justify-content: space-between; gap: 16px; flex-wrap: wrap; margin-bottom: 22px; }
.section__head h2 { margin: 6px 0 0; }
.section__intro { color: var(--muted); max-width: 60ch; margin: 0; }
.search { width: min(100%, 360px); padding: 11px 14px 11px 40px; border: 1px solid var(--border2); border-radius: var(--radius); font: inherit; font-size: .95rem; background: var(--surface) no-repeat 13px center / 16px url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%236b7280' stroke-width='2' stroke-linecap='round'%3E%3Ccircle cx='11' cy='11' r='7'/%3E%3Cpath d='m20 20-3.5-3.5'/%3E%3C/svg%3E"); color: var(--heading); }
.search::placeholder { color: var(--muted); }
.chips { display: flex; flex-wrap: wrap; gap: 8px; margin: 0 0 26px; }
.chip { display: inline-flex; align-items: center; gap: 8px; padding: 8px 14px; border-radius: 999px; background: var(--surface); border: 1px solid var(--border); color: var(--heading); text-decoration: none; font-weight: 500; font-size: .85rem; }
.chip:hover { border-color: var(--primary); color: var(--primary); }
.chip svg { width: 15px; height: 15px; }
.chip b { font-family: var(--font-mono); font-weight: 500; font-size: .7rem; color: var(--muted); }
.group { margin-top: 36px; scroll-margin-top: 90px; }
.group:first-child { margin-top: 0; }
.group__head { display: flex; align-items: center; gap: 14px; margin-bottom: 8px; }
.group__head h3 { font-size: 1.45rem; margin: 0; display: flex; align-items: center; gap: 10px; font-weight: 700; }
.group__head p { margin: 2px 0 0; color: var(--muted); font-size: .9rem; }
.group__icon { flex: none; width: 44px; height: 44px; border-radius: 12px; background: var(--primary); color: #fff; display: grid; place-items: center; box-shadow: var(--glow); }
.group__icon svg { width: 22px; height: 22px; }
.group:nth-child(2) .group__icon { background: var(--accent); box-shadow: 0 10px 30px -10px rgba(249, 115, 22, .55); }
.group:nth-child(3) .group__icon { background: var(--heading); color: var(--bg); box-shadow: none; }
.group__count { font-family: var(--font-mono); font-size: .66rem; font-weight: 600; letter-spacing: .08em; color: var(--primary); background: color-mix(in srgb, var(--primary) 10%, var(--bg)); border: 1px solid color-mix(in srgb, var(--primary) 30%, var(--border)); border-radius: 999px; padding: 3px 9px; }
.cat-title { font-family: var(--font-mono); font-size: .66rem; font-weight: 600; text-transform: uppercase; letter-spacing: .14em; color: var(--primary); margin: 22px 0 12px; }
.tool-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(240px, 1fr)); gap: 14px; list-style: none; padding: 0; margin: 0; }
.tool-card { display: flex; gap: 14px; background: var(--surface); border-radius: var(--radius-lg); padding: 18px; text-decoration: none; color: inherit; border: 1px solid var(--border); transition: transform .2s, border-color .2s, box-shadow .2s, background .2s; height: 100%; }
.tool-card:hover, .tool-card:focus-visible { transform: translateY(-2px); border-color: color-mix(in srgb, var(--primary) 55%, var(--border)); box-shadow: var(--shadow); background: var(--bg); outline: none; }
.tool-card__icon { flex: none; width: 42px; height: 42px; border-radius: 11px; display: grid; place-items: center; background: color-mix(in srgb, var(--primary) 12%, var(--bg)); color: var(--primary); border: 1px solid color-mix(in srgb, var(--primary) 20%, var(--border)); }
.tool-card__icon svg { width: 21px; height: 21px; }
.tool-grid li:nth-child(4n+2) .tool-card__icon { background: color-mix(in srgb, var(--accent) 12%, var(--bg)); color: var(--accent); border-color: color-mix(in srgb, var(--accent) 25%, var(--border)); }
.tool-card h3 { margin: 0 0 4px; font-size: 1rem; font-family: var(--font-display); }
.tool-card p { margin: 0; font-size: .85rem; color: var(--muted); line-height: 1.5; }
.empty { padding: 30px; text-align: center; color: var(--muted); }

.features { display: grid; grid-template-columns: repeat(auto-fit, minmax(230px, 1fr)); gap: 14px; }
.feature { background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius-lg); padding: 22px; }
.feature__icon { width: 40px; height: 40px; border-radius: 10px; background: var(--primary); color: #fff; display: grid; place-items: center; margin-bottom: 14px; }
.feature:nth-child(even) .feature__icon { background: var(--accent); }
.feature__icon svg { width: 20px; height: 20px; }
.feature h3 { font-size: 1.02rem; }
.feature p { margin: 0; font-size: .9rem; color: var(--muted); }

.steps { display: grid; grid-template-columns: repeat(auto-fit, minmax(220px, 1fr)); gap: 14px; }
.step { position: relative; padding: 22px; background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius-lg); }
.step__top { display: flex; align-items: center; justify-content: space-between; margin-bottom: 14px; }
.step__icon { width: 34px; height: 34px; border-radius: 9px; background: color-mix(in srgb, var(--primary) 12%, var(--bg)); color: var(--primary); display: grid; place-items: center; }
.step:nth-child(even) .step__icon { background: color-mix(in srgb, var(--accent) 12%, var(--bg)); color: var(--accent); }
.step:nth-child(even) .label-mono { color: var(--accent); }
.step__icon svg { width: 17px; height: 17px; }
.step h3 { font-size: 1rem; }
.step p { margin: 0; font-size: .9rem; color: var(--muted); }

/* --- Página de herramienta ---------------------------------------------- */
.tool-head { padding: 30px 0 10px; }
.tool-head__row { display: flex; flex-wrap: wrap; align-items: center; gap: 10px 22px; margin-bottom: 18px; }
.backlink { display: inline-flex; align-items: center; gap: 6px; font-size: .9rem; text-decoration: none; font-weight: 500; color: var(--muted); }
.backlink:hover { color: var(--primary); }
.backlink svg { width: 16px; height: 16px; }
.tool-head h1 { font-size: clamp(1.7rem, 3.2vw, 2.4rem); margin-bottom: 8px; }
.tool-head p { max-width: 70ch; color: var(--muted); font-size: 1.02rem; }
.privacy-pill { display: inline-flex; align-items: center; gap: 8px; font-family: var(--font-mono); font-size: .62rem; letter-spacing: .12em; text-transform: uppercase; font-weight: 600; color: var(--green-text); background: var(--green-bg); border: 1px solid color-mix(in srgb, var(--green-text) 30%, transparent); padding: 6px 12px; border-radius: 999px; }
.privacy-pill svg { width: 13px; height: 13px; }

.panel { background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius-lg); padding: 24px; margin-bottom: 16px; }
.panel h2 { font-size: 1.05rem; margin-bottom: 16px; display: flex; align-items: center; gap: 10px; font-weight: 600; }
.panel h2 .num { width: 26px; height: 26px; border-radius: 8px; background: var(--primary); color: #fff; font-size: .72rem; display: grid; place-items: center; font-family: var(--font-mono); }

/* Zona de arrastre */
.dropzone { border: 1.5px dashed var(--border2); border-radius: var(--radius-lg); padding: 38px 20px; text-align: center; background: var(--bg); cursor: pointer; transition: border-color .15s, background .15s; }
.dropzone:hover, .dropzone:focus-visible { border-color: var(--primary); background: color-mix(in srgb, var(--primary) 4%, var(--bg)); outline: none; }
.dropzone.is-over { border-color: var(--primary); background: color-mix(in srgb, var(--primary) 9%, var(--bg)); }
.dropzone svg { width: 40px; height: 40px; color: var(--primary); margin-bottom: 8px; }
.dropzone strong { display: block; font-family: var(--font-display); font-size: 1.05rem; color: var(--heading); }
.dropzone span { font-size: .85rem; color: var(--muted); }
.dropzone input { display: none; }
.dropzone--compact { padding: 18px; }

.file-list { list-style: none; margin: 14px 0 0; padding: 0; display: flex; flex-direction: column; gap: 8px; }
.file-item { display: flex; align-items: center; gap: 12px; padding: 10px 12px; border: 1px solid var(--border); border-radius: var(--radius); background: var(--bg); flex-wrap: wrap; }
.file-item.is-dragging { opacity: .5; }
.file-item.is-over { border-color: var(--primary); }
.file-item__icon { flex: none; width: 34px; height: 34px; border-radius: 9px; background: color-mix(in srgb, var(--primary) 12%, var(--bg)); color: var(--primary); display: grid; place-items: center; }
.file-item__icon svg { width: 18px; height: 18px; }
.file-item__name { flex: 1; min-width: 0; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; font-weight: 500; font-size: .92rem; color: var(--heading); }
.file-item__meta { font-family: var(--font-mono); font-size: .7rem; color: var(--muted); white-space: nowrap; }
.file-item__actions { display: flex; gap: 4px; }
.file-item .handle { cursor: grab; color: var(--muted); display: grid; place-items: center; }
.file-item .handle svg { width: 18px; height: 18px; }

/* Formularios */
.form-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(220px, 1fr)); gap: 14px 18px; }
.field { display: flex; flex-direction: column; gap: 6px; }
.field > label, .field > .label { font-size: .85rem; font-weight: 600; color: var(--heading); }
.field .hint { font-size: .78rem; color: var(--muted); }
.field input[type="text"], .field input[type="number"], .field input[type="password"], .field select, .field textarea {
  font: inherit; font-size: .95rem; padding: 10px 12px; border: 1px solid var(--border2); border-radius: var(--radius); background: var(--bg); color: var(--heading); width: 100%;
}
.field input::placeholder, .field textarea::placeholder { color: var(--muted); }
.field input:focus, .field select:focus, .field textarea:focus { outline: 2px solid var(--primary); outline-offset: 1px; border-color: transparent; }
.field input[type="color"] { width: 48px; height: 38px; padding: 2px; border: 1px solid var(--border2); border-radius: var(--radius); background: var(--bg); }
.field input[type="range"] { width: 100%; accent-color: var(--primary); }
.field input[type="file"] { font-size: .85rem; color: var(--body); }
.field--full { grid-column: 1 / -1; }
.check { display: flex; align-items: center; gap: 10px; font-size: .92rem; cursor: pointer; color: var(--body); }
.check input { width: 18px; height: 18px; accent-color: var(--primary); }
.radio-cards { display: grid; grid-template-columns: repeat(auto-fit, minmax(180px, 1fr)); gap: 10px; }
.radio-card { position: relative; display: block; padding: 12px 14px; border: 1px solid var(--border2); border-radius: var(--radius); cursor: pointer; background: var(--bg); transition: border-color .15s, box-shadow .15s; }
.radio-card input { position: absolute; opacity: 0; }
.radio-card:has(input:checked) { border-color: var(--primary); box-shadow: 0 0 0 3px color-mix(in srgb, var(--primary) 20%, transparent); }
.radio-card:has(input:focus-visible) { outline: 2px solid var(--primary); }
.radio-card strong { display: block; font-size: .92rem; color: var(--heading); }
.radio-card span { font-size: .8rem; color: var(--muted); }
fieldset { border: 0; padding: 0; margin: 0; min-width: 0; }
legend { font-size: .85rem; font-weight: 600; color: var(--heading); padding: 0; margin-bottom: 8px; }

/* Botones */
.btn { display: inline-flex; align-items: center; justify-content: center; gap: 8px; padding: 11px 20px; border-radius: var(--radius); border: 1px solid transparent; font-weight: 600; font-size: .95rem; cursor: pointer; text-decoration: none; transition: background .2s, color .2s, border-color .2s, transform .2s, box-shadow .2s; line-height: 1.2; }
.btn svg { width: 18px; height: 18px; }
.btn--primary { background: var(--primary); color: #fff; box-shadow: var(--glow); }
.btn--primary:hover { background: var(--primary-dark); transform: translateY(-1px); }
.btn--secondary { background: var(--bg); color: var(--heading); border-color: var(--border2); }
.btn--secondary:hover { border-color: var(--heading); }
.btn--ghost { background: transparent; color: var(--body); }
.btn--ghost:hover { background: var(--surface2); color: var(--heading); }
.btn--danger { background: var(--bg); color: var(--red); border-color: color-mix(in srgb, var(--red) 40%, var(--border)); }
.btn--danger:hover { background: var(--red); color: #fff; }
.btn--sm { padding: 7px 12px; font-size: .85rem; }
.btn--lg { padding: 14px 28px; font-size: 1.02rem; }
.btn:disabled { opacity: .5; cursor: not-allowed; transform: none; box-shadow: none; }
.btn-icon { width: 34px; height: 34px; padding: 0; border-radius: 8px; border: 1px solid transparent; background: transparent; color: var(--body); cursor: pointer; display: inline-grid; place-items: center; }
.btn-icon:hover { background: var(--surface2); color: var(--heading); }
.btn-icon svg { width: 18px; height: 18px; }
.btn-icon.danger:hover { background: var(--red-bg); color: var(--red); }
.btn-icon.is-active { background: color-mix(in srgb, var(--primary) 14%, var(--bg)); color: var(--primary); }
.actions { display: flex; flex-wrap: wrap; gap: 10px; align-items: center; margin-top: 18px; }

/* Progreso / resultados */
.progress { margin-top: 14px; }
.progress__bar { height: 6px; background: var(--surface2); border-radius: 999px; overflow: hidden; }
.progress__fill { height: 100%; width: 0; background: var(--primary); transition: width .2s; }
.progress__text { font-family: var(--font-mono); font-size: .72rem; color: var(--muted); margin-top: 8px; }
.results { display: flex; flex-direction: column; gap: 10px; }
.result { display: flex; align-items: center; gap: 12px; padding: 12px 14px; border-radius: var(--radius); background: var(--green-bg); border: 1px solid color-mix(in srgb, var(--green-text) 30%, transparent); flex-wrap: wrap; }
.result__icon { color: var(--green-text); display: grid; place-items: center; }
.result__icon svg { width: 22px; height: 22px; }
.result__name { flex: 1; min-width: 0; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; font-weight: 500; color: var(--heading); }
.result__meta { font-family: var(--font-mono); font-size: .7rem; color: var(--body); white-space: nowrap; }
.result img { width: 44px; height: 44px; object-fit: cover; border-radius: 6px; background: var(--bg); }
.alert { padding: 12px 14px; border-radius: var(--radius); font-size: .9rem; margin: 12px 0; border: 1px solid transparent; }
.alert--info { background: color-mix(in srgb, var(--primary) 9%, var(--bg)); border-color: color-mix(in srgb, var(--primary) 30%, transparent); color: var(--body); }
.alert--warn { background: var(--amber-bg); border-color: color-mix(in srgb, var(--amber) 40%, transparent); color: var(--body); }
.alert--error { background: var(--red-bg); border-color: color-mix(in srgb, var(--red) 40%, transparent); color: var(--body); }
.alert--success { background: var(--green-bg); border-color: color-mix(in srgb, var(--green-text) 35%, transparent); color: var(--body); }
.alert strong { color: var(--heading); }
.stat { display: inline-flex; gap: 6px; align-items: baseline; margin-right: 16px; }
.stat b { font-family: var(--font-display); color: var(--heading); }

/* Miniaturas de páginas */
.thumbs { display: grid; grid-template-columns: repeat(auto-fill, minmax(140px, 1fr)); gap: 12px; list-style: none; margin: 0; padding: 0; }
.thumb { position: relative; background: var(--bg); border: 2px solid var(--border); border-radius: 12px; padding: 8px; text-align: center; user-select: none; }
.thumb.is-draggable { cursor: grab; }
.thumb.is-selected { border-color: var(--primary); }
.thumb.is-dragging { opacity: .4; }
.thumb.is-over { border-color: var(--accent); }
.thumb canvas, .thumb img { max-width: 100%; height: auto; background: #fff; box-shadow: var(--shadow); display: block; margin: 0 auto; transition: transform .2s; }
.thumb__num { font-family: var(--font-mono); font-size: .66rem; color: var(--muted); margin-top: 6px; display: block; }
.thumb__tools { display: flex; justify-content: center; gap: 2px; margin-top: 4px; }
.thumb__tools .btn-icon { width: 28px; height: 28px; }
.thumb__tools .btn-icon svg { width: 15px; height: 15px; }
.thumb__file { position: absolute; top: 6px; left: 6px; font-family: var(--font-mono); font-size: .58rem; letter-spacing: .08em; background: var(--heading); color: var(--bg); padding: 2px 7px; border-radius: 999px; z-index: 1; }
.thumb.is-selectable { cursor: pointer; }
.thumb .thumb__check { position: absolute; top: 8px; right: 8px; width: 20px; height: 20px; accent-color: var(--primary); z-index: 1; }
.thumb__img { min-height: 120px; display: grid; place-items: center; }

/* Visor de página con capa de dibujo */
.viewer { display: grid; grid-template-columns: 1fr; gap: 14px; }
@media (min-width: 900px) { .viewer.has-side { grid-template-columns: 1fr 300px; } }
.viewer__toolbar { display: flex; align-items: center; gap: 8px; flex-wrap: wrap; margin-bottom: 10px; font-size: .9rem; }
.viewer__toolbar .btn-icon svg { width: 18px; height: 18px; }
.viewer__stage { position: relative; display: block; margin: 0 auto; max-width: 100%; box-shadow: var(--shadow-lg); background: #fff; line-height: 0; touch-action: none; }
.viewer__stage canvas { width: 100%; height: auto; display: block; }
.viewer__overlay { position: absolute; inset: 0; cursor: crosshair; }
.viewer__overlay.is-move { cursor: move; }
.viewer__wrap { overflow: auto; text-align: center; background: var(--surface2); padding: 16px; border-radius: 12px; }
.side { display: flex; flex-direction: column; gap: 12px; }
.side strong { color: var(--heading); }
.sig-pad { border: 1.5px dashed var(--border2); border-radius: var(--radius); background: #fff; touch-action: none; width: 100%; height: 160px; display: block; }
.textarea-out { width: 100%; min-height: 260px; font-family: var(--font-mono); font-size: .82rem; white-space: pre-wrap; padding: 12px; border: 1px solid var(--border2); border-radius: var(--radius); background: var(--bg); color: var(--heading); }
.tabs { display: flex; gap: 6px; border-bottom: 1px solid var(--border); margin-bottom: 12px; }
.tab { padding: 8px 14px; border: 0; background: none; font-weight: 600; font-size: .9rem; color: var(--muted); cursor: pointer; border-bottom: 2px solid transparent; margin-bottom: -1px; }
.tab.is-active { color: var(--primary); border-bottom-color: var(--primary); }
.img-preview { max-width: 100%; max-height: 160px; border-radius: 6px; border: 1px solid var(--border); background: #fff; display: block; }

/* Editor de imágenes */
.editor__toolbar { display: flex; flex-wrap: wrap; gap: 6px; margin-bottom: 10px; }
.tool-btn { display: inline-flex; align-items: center; gap: 6px; padding: 8px 12px; border-radius: var(--radius); border: 1px solid var(--border2); background: var(--bg); color: var(--body); font-weight: 600; font-size: .85rem; cursor: pointer; }
.tool-btn svg { width: 18px; height: 18px; }
.tool-btn:hover { border-color: var(--primary); color: var(--heading); }
.tool-btn.is-active { background: var(--primary); border-color: var(--primary); color: #fff; }
.editor__controls { display: flex; flex-wrap: wrap; align-items: center; gap: 12px; margin-bottom: 12px; font-size: .85rem; }
.editor__ctl { display: inline-flex; align-items: center; gap: 8px; font-weight: 600; color: var(--heading); }
.editor__ctl input[type="range"] { width: 120px; accent-color: var(--primary); }
.editor__controls input[type="text"] { font: inherit; padding: 7px 10px; border: 1px solid var(--border2); border-radius: var(--radius); min-width: 200px; background: var(--bg); color: var(--heading); }
.editor__wrap { background: var(--surface2); padding: 12px; border-radius: 12px; text-align: center; overflow: auto; }
.editor__canvas { max-width: 100%; height: auto; box-shadow: var(--shadow-lg); cursor: crosshair; touch-action: none; background: #fff; }

/* Comparación antes/después */
.compare { display: grid; grid-template-columns: repeat(auto-fit, minmax(220px, 1fr)); gap: 12px; margin-top: 10px; }
.compare__side { margin: 0; background: var(--surface2); border-radius: 12px; padding: 10px; text-align: center; }
.compare__side img { max-width: 100%; max-height: 260px; border-radius: 6px; background: #fff; }
.compare__side figcaption { font-size: .82rem; color: var(--body); margin-top: 6px; }

/* Tablas clave/valor */
.kv { width: 100%; border-collapse: collapse; font-size: .9rem; margin: 8px 0 12px; }
.kv th, .kv td { text-align: left; padding: 8px 10px; border-bottom: 1px solid var(--border); vertical-align: top; word-break: break-word; }
.kv th { width: 34%; color: var(--heading); font-weight: 600; }
.kv td { color: var(--body); }
.kv tr.is-warn th, .kv tr.is-warn td { background: var(--amber-bg); }
.meta-card { padding: 14px 16px; border: 1px solid var(--border); border-radius: 12px; margin-bottom: 12px; background: var(--bg); }
.meta-card h3 { font-size: .95rem; margin-bottom: 8px; word-break: break-all; }

/* Generador de QR */
.qr { display: grid; grid-template-columns: 1fr; gap: 22px; }
@media (min-width: 900px) { .qr { grid-template-columns: 340px 1fr; } }
.qr__preview { position: sticky; top: 88px; align-self: start; text-align: center; }
.qr__canvas { width: 100%; max-width: 340px; height: auto; border-radius: 14px; border: 1px solid var(--border); background: repeating-conic-gradient(var(--surface2) 0 25%, var(--bg) 0 50%) 0 0 / 20px 20px; }
.qr__preview .actions { justify-content: center; }
.qr__h { font-size: 1rem; margin: 18px 0 10px; }

/* Contraseñas */
.pw-list { display: flex; flex-direction: column; gap: 8px; margin-top: 10px; }
.pw-item { display: grid; grid-template-columns: 1fr auto; gap: 6px 14px; align-items: center; padding: 10px 14px; border: 1px solid var(--border); border-radius: var(--radius); background: var(--bg); }
.pw-item__value { font-family: var(--font-mono); font-size: 1rem; word-break: break-all; color: var(--heading); grid-column: 1; }
.pw-item__meta { display: flex; align-items: center; gap: 10px; grid-column: 1; }
.pw-item .btn { grid-column: 2; grid-row: 1 / span 2; }
.meter { width: 140px; height: 6px; background: var(--surface2); border-radius: 999px; overflow: hidden; }
.meter__fill { height: 100%; background: var(--muted); }
.meter--weak .meter__fill { background: var(--red); }
.meter--ok .meter__fill { background: var(--amber); }
.meter--strong .meter__fill { background: var(--green); }
.meter--max .meter__fill { background: var(--primary); }

/* Codificador */
.codec { display: grid; grid-template-columns: 1fr; gap: 14px; margin-top: 14px; }
@media (min-width: 900px) { .codec { grid-template-columns: 1fr 1fr; } }
.textarea-out--short { min-height: 180px; }
.codec .field label { font-size: .85rem; font-weight: 600; color: var(--heading); }

/* Página de privacidad */
.prose { max-width: 76ch; }
.prose h2 { margin-top: 1.6em; font-size: 1.45rem; }
.prose ol, .prose ul { padding-left: 1.3em; }
.prose li { margin-bottom: .4em; }
.prose code { background: var(--surface2); border: 1px solid var(--border); padding: 1px 6px; border-radius: 4px; font-size: .85em; color: var(--heading); }

/* Pie */
.footer { margin-top: auto; border-top: 1px solid var(--border); background: var(--surface); color: var(--muted); padding: 32px 0; font-size: .9rem; }
.footer__brand { display: flex; align-items: center; gap: 10px; margin-bottom: 12px; }
.footer__brand img { height: 30px; width: auto; }
.footer__brand span { font-family: var(--font-mono); font-size: .66rem; letter-spacing: .14em; text-transform: uppercase; color: var(--primary); border: 1px solid var(--border2); border-radius: 999px; padding: 3px 9px; }
.footer p { margin: 0 0 6px; }
.footer__small { font-size: .8rem; }

/* Toasts */
.toasts { position: fixed; bottom: 20px; right: 20px; display: flex; flex-direction: column; gap: 8px; z-index: 50; max-width: min(380px, calc(100vw - 40px)); }
.toast { background: var(--heading); color: var(--bg); padding: 12px 16px; border-radius: var(--radius); box-shadow: var(--shadow-lg); font-size: .9rem; animation: toast-in .2s ease-out; }
.toast--error { background: #dc2626; color: #fff; }
.toast--success { background: #16a34a; color: #fff; }
@keyframes toast-in { from { transform: translateY(8px); opacity: 0; } to { transform: none; opacity: 1; } }

@media (max-width: 640px) {
  .panel { padding: 16px; }
  .hero { padding: 40px 0 24px; }
}
@media print { .topbar, .footer, .toasts { display: none; } }