/* DevCajón — terminal dark mode. Vanilla, sin librerías. Mobile-first. */

:root {
  /* Paleta gris carbón + acento cian/verde terminal */
  --bg: #0d1117;
  --bg-2: #11161d;
  --panel: #161b22;
  --panel-2: #1c232d;
  --border: #262d38;
  --border-2: #30394a;
  --fg: #d6dde6;
  --fg-dim: #9aa5b1;
  --fg-faint: #6b7684;
  --accent: #2de2c0;       /* cian/verde terminal */
  --accent-2: #39d353;     /* verde */
  --accent-ink: #04241f;
  --warn: #f0b429;
  --err: #ff6b6b;
  --ok: #39d353;
  --link: #56d4c4;

  --mono: ui-monospace, "SF Mono", "SFMono-Regular", "Cascadia Code",
    "JetBrains Mono", "Fira Code", Menlo, Consolas, "Liberation Mono", monospace;
  --sans: system-ui, -apple-system, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;

  --radius: 10px;
  --radius-sm: 7px;
  --shadow: 0 8px 30px rgba(0, 0, 0, 0.35);
  --maxw: 1080px;
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  margin: 0;
  background:
    radial-gradient(1200px 600px at 80% -10%, rgba(45, 226, 192, 0.06), transparent 60%),
    var(--bg);
  color: var(--fg);
  font-family: var(--sans);
  font-size: 16px;
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

.wrap { width: 100%; max-width: var(--maxw); margin: 0 auto; padding: 0 20px; }

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

:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 2px;
  border-radius: 4px;
}

code, kbd, samp, pre { font-family: var(--mono); }

/* ---------- Skip link ---------- */
.skip {
  position: absolute; left: -999px; top: 0; z-index: 100;
  background: var(--accent); color: var(--accent-ink);
  padding: 10px 16px; border-radius: 0 0 8px 0; font-weight: 700;
}
.skip:focus { left: 0; }

/* ---------- Header ---------- */
.site-header {
  position: sticky; top: 0; z-index: 40;
  background: rgba(13, 17, 23, 0.82);
  backdrop-filter: saturate(150%) blur(10px);
  border-bottom: 1px solid var(--border);
}
.site-header .wrap {
  display: flex; align-items: center; gap: 16px;
  min-height: 60px;
}
.brand {
  display: inline-flex; align-items: center; gap: 10px;
  font-family: var(--mono); font-weight: 700; font-size: 18px;
  color: var(--fg); letter-spacing: -0.02em;
}
.brand:hover { text-decoration: none; }
.brand .logo {
  display: inline-grid; place-items: center;
  width: 32px; height: 32px; border-radius: 8px;
  background: linear-gradient(135deg, var(--accent), var(--accent-2));
  color: var(--accent-ink); font-size: 16px; font-weight: 800;
  box-shadow: 0 0 0 1px rgba(45, 226, 192, 0.25), 0 4px 14px rgba(45, 226, 192, 0.2);
}
.brand .tld { color: var(--accent); }

.nav-toggle {
  margin-left: auto; display: none;
  background: var(--panel); color: var(--fg);
  border: 1px solid var(--border-2); border-radius: 8px;
  padding: 8px 12px; font-family: var(--mono); cursor: pointer;
}
.main-nav { margin-left: auto; }
.main-nav ul {
  list-style: none; display: flex; gap: 4px; margin: 0; padding: 0;
  flex-wrap: wrap;
}
.main-nav a {
  display: block; padding: 8px 12px; border-radius: 8px;
  color: var(--fg-dim); font-size: 14px; font-family: var(--mono);
}
.main-nav a:hover { background: var(--panel); color: var(--fg); text-decoration: none; }
.main-nav a[aria-current="page"] { color: var(--accent); background: var(--panel); }

/* ---------- Hero ---------- */
.hero { padding: 54px 0 30px; }
.hero .eyebrow {
  font-family: var(--mono); color: var(--accent);
  font-size: 13px; letter-spacing: 0.08em; text-transform: uppercase;
  margin: 0 0 14px;
}
.hero h1 {
  font-size: clamp(1.9rem, 5vw, 3rem); line-height: 1.1;
  margin: 0 0 16px; letter-spacing: -0.03em; font-weight: 800;
}
.hero h1 .hl { color: var(--accent); }
.hero p.lead {
  font-size: clamp(1rem, 2.4vw, 1.2rem); color: var(--fg-dim);
  max-width: 62ch; margin: 0 0 20px;
}
.badge-privacy {
  display: inline-flex; align-items: center; gap: 8px;
  background: rgba(57, 211, 83, 0.08);
  border: 1px solid rgba(57, 211, 83, 0.28);
  color: var(--accent-2);
  font-family: var(--mono); font-size: 13px;
  padding: 7px 12px; border-radius: 999px; margin-bottom: 8px;
}
.badge-privacy::before { content: "🔒"; }

/* ---------- Buttons ---------- */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 8px;
  font-family: var(--mono); font-weight: 600; font-size: 14px;
  padding: 10px 16px; border-radius: var(--radius-sm);
  border: 1px solid var(--border-2); background: var(--panel-2); color: var(--fg);
  cursor: pointer; transition: border-color .15s, background .15s, transform .05s;
  text-decoration: none;
}
.btn:hover { border-color: var(--accent); text-decoration: none; }
.btn:active { transform: translateY(1px); }
.btn-primary {
  background: linear-gradient(135deg, var(--accent), var(--accent-2));
  color: var(--accent-ink); border-color: transparent; font-weight: 700;
}
.btn-primary:hover { filter: brightness(1.06); }
.btn-ghost { background: transparent; }
.btn-sm { padding: 6px 10px; font-size: 13px; }
.btn-row { display: flex; flex-wrap: wrap; gap: 10px; }

/* ---------- Tool grid (home) ---------- */
.section { padding: 40px 0; }
.section h2 {
  font-size: clamp(1.4rem, 3.5vw, 1.9rem); margin: 0 0 6px;
  letter-spacing: -0.02em;
}
.section .sub { color: var(--fg-dim); margin: 0 0 26px; max-width: 68ch; }

.tools-grid {
  display: grid; gap: 14px;
  grid-template-columns: repeat(auto-fill, minmax(240px, 1fr));
}
.tool-card {
  display: block; padding: 18px; border-radius: var(--radius);
  background: var(--panel); border: 1px solid var(--border);
  transition: border-color .15s, transform .1s, background .15s;
}
.tool-card:hover {
  border-color: var(--accent); text-decoration: none;
  transform: translateY(-2px); background: var(--panel-2);
}
.tool-card .ic { font-size: 24px; }
.tool-card h3 {
  font-family: var(--mono); font-size: 16px; margin: 10px 0 6px; color: var(--fg);
}
.tool-card p { margin: 0; color: var(--fg-dim); font-size: 14px; }

/* ---------- Tool / panel ---------- */
.panel {
  background: var(--panel); border: 1px solid var(--border);
  border-radius: var(--radius); overflow: hidden;
}
.panel-head {
  display: flex; align-items: center; gap: 10px;
  padding: 12px 16px; border-bottom: 1px solid var(--border);
  background: var(--bg-2);
}
.dots { display: inline-flex; gap: 6px; }
.dots i { width: 11px; height: 11px; border-radius: 50%; display: inline-block; }
.dots i:nth-child(1) { background: #ff5f56; }
.dots i:nth-child(2) { background: #ffbd2e; }
.dots i:nth-child(3) { background: #27c93f; }
.panel-title {
  font-family: var(--mono); font-size: 13px; color: var(--fg-dim);
}
.panel-body { padding: 16px; }

.tool-grid-2 { display: grid; gap: 16px; grid-template-columns: 1fr; }
@media (min-width: 760px) { .tool-grid-2 { grid-template-columns: 1fr 1fr; } }

label.field-label {
  display: block; font-family: var(--mono); font-size: 13px;
  color: var(--fg-dim); margin: 0 0 6px;
}

textarea, input[type="text"], input[type="number"], input[type="datetime-local"], select {
  width: 100%; background: var(--bg); color: var(--fg);
  border: 1px solid var(--border-2); border-radius: var(--radius-sm);
  padding: 11px 12px; font-family: var(--mono); font-size: 14px;
  resize: vertical;
}
textarea { min-height: 160px; line-height: 1.5; }
textarea.tall { min-height: 220px; }
input:focus, textarea:focus, select:focus { border-color: var(--accent); outline: none; }

.controls {
  display: flex; flex-wrap: wrap; gap: 10px; align-items: center;
  margin: 14px 0;
}
.controls .grow { flex: 1 1 auto; }

.toolbar {
  display: flex; flex-wrap: wrap; gap: 8px; margin-bottom: 12px;
}

.status {
  font-family: var(--mono); font-size: 13px; padding: 8px 12px;
  border-radius: var(--radius-sm); border: 1px solid var(--border-2);
  background: var(--bg-2); color: var(--fg-dim); margin-top: 12px;
  white-space: pre-wrap; word-break: break-word;
}
.status.ok { color: var(--ok); border-color: rgba(57,211,83,.35); background: rgba(57,211,83,.06); }
.status.err { color: var(--err); border-color: rgba(255,107,107,.35); background: rgba(255,107,107,.06); }
.status.warn { color: var(--warn); border-color: rgba(240,180,41,.35); background: rgba(240,180,41,.06); }

.out {
  width: 100%; background: var(--bg); color: var(--fg);
  border: 1px solid var(--border-2); border-radius: var(--radius-sm);
  padding: 11px 12px; font-family: var(--mono); font-size: 14px;
  min-height: 46px; white-space: pre-wrap; word-break: break-word;
}

/* switches / options */
.opt-row { display: flex; flex-wrap: wrap; gap: 16px; align-items: center; margin: 6px 0 14px; }
.check {
  display: inline-flex; align-items: center; gap: 8px;
  font-family: var(--mono); font-size: 14px; color: var(--fg-dim); cursor: pointer;
}
.check input { width: 16px; height: 16px; accent-color: var(--accent); }
.range-row { display: flex; align-items: center; gap: 12px; }
.range-row input[type="range"] { flex: 1; accent-color: var(--accent); }
.range-val {
  font-family: var(--mono); min-width: 3ch; text-align: right;
  color: var(--accent); font-weight: 700;
}

/* color tool */
.swatch {
  height: 120px; border-radius: var(--radius-sm); border: 1px solid var(--border-2);
  margin-bottom: 12px; transition: background .1s;
}
.color-fields { display: grid; gap: 12px; grid-template-columns: 1fr; }
@media (min-width: 560px) { .color-fields { grid-template-columns: 1fr 1fr 1fr; } }

/* meter for password */
.meter { height: 8px; border-radius: 999px; background: var(--border); overflow: hidden; margin: 10px 0 6px; }
.meter > i { display: block; height: 100%; width: 0; background: var(--err); transition: width .2s, background .2s; }
.meter-label { font-family: var(--mono); font-size: 13px; color: var(--fg-dim); }

/* ---------- Content / prose ---------- */
.prose { max-width: 72ch; }
.prose h2 { margin: 34px 0 10px; font-size: 1.5rem; letter-spacing: -0.02em; }
.prose h3 { margin: 26px 0 8px; font-size: 1.2rem; font-family: var(--mono); }
.prose p, .prose li { color: var(--fg); }
.prose p { margin: 0 0 14px; }
.prose ul, .prose ol { margin: 0 0 16px; padding-left: 22px; }
.prose li { margin: 6px 0; }
.prose code {
  background: var(--bg-2); border: 1px solid var(--border);
  padding: 1px 6px; border-radius: 5px; font-size: 0.92em; color: var(--accent);
}
.prose pre {
  background: var(--bg); border: 1px solid var(--border-2);
  border-radius: var(--radius-sm); padding: 14px; overflow-x: auto; font-size: 13px;
  margin: 0 0 16px;
}
.prose pre code { background: none; border: none; padding: 0; color: var(--fg); }
.prose a { text-decoration: underline; }
.prose table { width: 100%; border-collapse: collapse; margin: 0 0 18px; font-size: 14px; }
.prose th, .prose td { border: 1px solid var(--border); padding: 8px 10px; text-align: left; }
.prose th { background: var(--bg-2); font-family: var(--mono); }

.example {
  background: var(--bg-2); border: 1px solid var(--border);
  border-left: 3px solid var(--accent);
  border-radius: var(--radius-sm); padding: 12px 14px; margin: 14px 0;
  font-size: 14px;
}
.example strong { font-family: var(--mono); color: var(--accent); }

/* ---------- FAQ ---------- */
.faq details {
  border: 1px solid var(--border); border-radius: var(--radius-sm);
  padding: 4px 14px; margin: 0 0 10px; background: var(--panel);
}
.faq summary {
  cursor: pointer; padding: 10px 0; font-weight: 600; font-family: var(--mono);
  font-size: 15px;
}
.faq summary::marker { color: var(--accent); }
.faq details[open] { border-color: var(--border-2); }
.faq p { color: var(--fg-dim); margin: 4px 0 12px; }

/* ---------- Adslot ---------- */
.adslot {
  margin: 26px 0; min-height: 90px; border: 1px dashed var(--border-2);
  border-radius: var(--radius-sm); display: grid; place-items: center;
  color: var(--fg-faint); font-family: var(--mono); font-size: 12px;
  background: var(--bg-2);
}

/* ---------- Callout ---------- */
.callout {
  display: flex; gap: 12px; padding: 14px 16px; border-radius: var(--radius-sm);
  background: rgba(45, 226, 192, 0.05); border: 1px solid rgba(45, 226, 192, 0.22);
  margin: 18px 0; font-size: 14px; color: var(--fg-dim);
}
.callout .ic { font-size: 20px; }

/* ---------- Footer ---------- */
.site-footer {
  border-top: 1px solid var(--border); margin-top: 50px;
  padding: 34px 0 40px; color: var(--fg-dim); font-size: 14px;
  background: var(--bg-2);
}
.foot-grid {
  display: grid; gap: 26px; grid-template-columns: 1fr;
}
@media (min-width: 640px) { .foot-grid { grid-template-columns: 2fr 1fr 1fr; } }
.foot-grid h4 { font-family: var(--mono); font-size: 13px; color: var(--fg); margin: 0 0 10px; text-transform: uppercase; letter-spacing: .06em; }
.foot-grid ul { list-style: none; margin: 0; padding: 0; }
.foot-grid li { margin: 6px 0; }
.foot-grid a { color: var(--fg-dim); }
.foot-grid a:hover { color: var(--accent); }
.foot-bottom {
  margin-top: 26px; padding-top: 18px; border-top: 1px solid var(--border);
  display: flex; flex-wrap: wrap; gap: 10px; justify-content: space-between;
  font-family: var(--mono); font-size: 12px; color: var(--fg-faint);
}

/* ---------- breadcrumb ---------- */
.crumbs { font-family: var(--mono); font-size: 13px; color: var(--fg-faint); padding: 20px 0 0; }
.crumbs a { color: var(--fg-dim); }

/* ---------- 404 ---------- */
.center-hero { text-align: center; padding: 70px 0; }
.center-hero .big { font-family: var(--mono); font-size: clamp(3rem, 14vw, 7rem); color: var(--accent); line-height: 1; margin: 0; }

/* ---------- cookie banner ---------- */
.cookie-banner {
  position: fixed; left: 12px; right: 12px; bottom: 12px; z-index: 60;
  background: var(--panel); border: 1px solid var(--border-2);
  border-radius: var(--radius); box-shadow: var(--shadow);
  padding: 16px; display: none; gap: 14px; align-items: center; flex-wrap: wrap;
}
.cookie-banner.show { display: flex; }
.cookie-banner p { margin: 0; font-size: 13px; color: var(--fg-dim); flex: 1 1 280px; }
.cookie-banner .btn-row { margin-left: auto; }
@media (min-width: 720px) {
  .cookie-banner { left: auto; right: 20px; bottom: 20px; max-width: 440px; }
}

/* ---------- utils ---------- */
.hidden { display: none !important; }
.mt { margin-top: 16px; }
.muted { color: var(--fg-dim); }
.cols-2 { display: grid; gap: 22px; grid-template-columns: 1fr; }
@media (min-width: 860px) { .cols-2 { grid-template-columns: 1.3fr 1fr; } }

/* mobile nav */
@media (max-width: 720px) {
  .nav-toggle { display: inline-block; }
  .main-nav {
    display: none; width: 100%; order: 3; margin: 0 0 12px;
  }
  .main-nav.open { display: block; }
  .main-nav ul { flex-direction: column; }
  .main-nav a { padding: 10px 12px; }
  .site-header .wrap { flex-wrap: wrap; }
}

@media (prefers-reduced-motion: reduce) {
  * { scroll-behavior: auto !important; transition: none !important; }
}