/* ==========================================================================
   GameTools — Design tokens
   ========================================================================== */

:root {
  /* Color */
  --bg: #0d0f13;
  --bg-raised: #12151b;
  --surface: #161a21;
  --surface-2: #1c212a;
  --border: #262c37;
  --border-strong: #333b48;
  --text: #e7eaf0;
  --text-muted: #9aa3b2;
  --text-faint: #6b7385;
  --accent: #6c8cff;
  --accent-dim: #4a5fb8;
  --accent-ink: #0d0f13;
  --good: #34d399;
  --warn: #f5b544;
  --bad: #f0685c;

  /* Type */
  --font-display: 'Space Grotesk', 'Segoe UI', system-ui, -apple-system, sans-serif;
  --font-body: 'Inter', 'Segoe UI', system-ui, -apple-system, sans-serif;
  --font-mono: 'IBM Plex Mono', ui-monospace, 'SFMono-Regular', Menlo, Consolas, monospace;

  /* Layout */
  --max-width: 1120px;
  --radius: 8px;
  --radius-sm: 5px;
  --gap: 24px;

  color-scheme: dark;
}

* , *::before, *::after { box-sizing: border-box; }

html {
  scroll-behavior: smooth;
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }
}

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: var(--font-body);
  font-size: 16px;
  line-height: 1.55;
  -webkit-font-smoothing: antialiased;
}

body::before {
  content: "";
  position: fixed;
  inset: 0;
  z-index: -1;
  background-image:
    linear-gradient(var(--border) 1px, transparent 1px),
    linear-gradient(90deg, var(--border) 1px, transparent 1px);
  background-size: 42px 42px;
  opacity: 0.06;
  pointer-events: none;
}

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

h1, h2, h3, h4 {
  font-family: var(--font-display);
  font-weight: 600;
  line-height: 1.15;
  margin: 0 0 0.5em;
  letter-spacing: -0.01em;
}

h1 { font-size: clamp(2rem, 4vw, 3rem); }
h2 { font-size: clamp(1.5rem, 2.6vw, 2rem); }
h3 { font-size: 1.25rem; }

p { margin: 0 0 1em; color: var(--text-muted); max-width: 68ch; }

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

code, .mono { font-family: var(--font-mono); }

:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 2px;
  border-radius: 3px;
}

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

.skip-link {
  position: absolute;
  left: -999px;
  top: 0;
  background: var(--accent);
  color: var(--accent-ink);
  padding: 10px 16px;
  border-radius: var(--radius-sm);
  z-index: 999;
}
.skip-link:focus { left: 16px; top: 16px; }

/* ==========================================================================
   Header / Nav
   ========================================================================== */

.site-header {
  border-bottom: 1px solid var(--border);
  background: rgba(13, 15, 19, 0.9);
  backdrop-filter: blur(6px);
  position: sticky;
  top: 0;
  z-index: 50;
}

.nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 14px 0;
}

.brand {
  display: flex;
  align-items: center;
  gap: 10px;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 1.1rem;
  color: var(--text);
}
.brand:hover { text-decoration: none; }
.brand svg { flex-shrink: 0; }

.nav-links {
  display: flex;
  gap: 4px;
  list-style: none;
  margin: 0;
  padding: 0;
}

.nav-links a {
  color: var(--text-muted);
  font-size: 0.92rem;
  padding: 8px 12px;
  border-radius: var(--radius-sm);
}
.nav-links a:hover, .nav-links a[aria-current="page"] {
  color: var(--text);
  background: var(--surface);
  text-decoration: none;
}

.nav-toggle {
  display: none;
  background: transparent;
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  color: var(--text);
  padding: 8px 10px;
  cursor: pointer;
}

@media (max-width: 760px) {
  .nav-toggle { display: inline-flex; }
  .nav-links {
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    background: var(--bg-raised);
    border-bottom: 1px solid var(--border);
    flex-direction: column;
    padding: 8px;
    display: none;
  }
  .nav-links.open { display: flex; }
  .nav-links a { display: block; padding: 12px; }
}

/* ==========================================================================
   Buttons
   ========================================================================== */

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  font-family: var(--font-body);
  font-weight: 600;
  font-size: 0.95rem;
  padding: 11px 20px;
  border-radius: var(--radius-sm);
  border: 1px solid transparent;
  cursor: pointer;
  transition: background 0.15s ease, border-color 0.15s ease, transform 0.1s ease;
}
.btn:hover { text-decoration: none; }
.btn:active { transform: translateY(1px); }

.btn-primary {
  background: var(--accent);
  color: var(--accent-ink);
}
.btn-primary:hover { background: #85a1ff; }

.btn-secondary {
  background: transparent;
  color: var(--text);
  border-color: var(--border-strong);
}
.btn-secondary:hover { border-color: var(--accent); color: var(--accent); }

.btn-small { padding: 7px 12px; font-size: 0.85rem; }

/* ==========================================================================
   Hero
   ========================================================================== */

.hero {
  padding: 72px 0 56px;
  border-bottom: 1px solid var(--border);
}

.hero-grid {
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: 48px;
  align-items: center;
}

@media (max-width: 860px) {
  .hero-grid { grid-template-columns: 1fr; }
}

.eyebrow {
  color: var(--accent);
  font-family: var(--font-mono);
  font-size: 0.85rem;
  margin-bottom: 14px;
  display: block;
}

.hero p.lead {
  font-size: 1.1rem;
  color: var(--text-muted);
  margin-bottom: 28px;
}

.hero-actions { display: flex; gap: 12px; flex-wrap: wrap; }

.hero-panel {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 20px;
}

.hero-panel-row {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  padding: 10px 0;
  border-bottom: 1px dashed var(--border);
  font-family: var(--font-mono);
  font-size: 0.9rem;
}
.hero-panel-row:last-child { border-bottom: none; }
.hero-panel-row span:first-child { color: var(--text-faint); }
.hero-panel-row span:last-child { color: var(--good); }

/* ==========================================================================
   Sections / Categories
   ========================================================================== */

section { padding: 56px 0; }
section.tight { padding: 40px 0; }
.section-head { margin-bottom: 32px; }
.section-head p { max-width: 60ch; }

.category-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 16px;
}

.category-card {
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 20px;
  background: var(--surface);
}
.category-card h3 { margin-bottom: 6px; font-size: 1.05rem; }
.category-card p { font-size: 0.9rem; margin: 0; }

/* ==========================================================================
   Tool cards
   ========================================================================== */

.tool-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: var(--gap);
}
@media (max-width: 1100px) { .tool-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); } }
@media (max-width: 620px) { .tool-grid { grid-template-columns: 1fr; } }

.tool-card {
  border: 1px solid var(--border);
  background: var(--surface);
  border-radius: var(--radius);
  padding: 22px;
  display: flex;
  flex-direction: column;
  transition: border-color 0.15s ease;
}
.tool-card:hover { border-color: var(--border-strong); }

.tool-card .tag {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  color: var(--accent);
  text-transform: uppercase;
  letter-spacing: 0.04em;
  margin-bottom: 10px;
}

.tool-card h3 { margin-bottom: 8px; }
.tool-card p { font-size: 0.92rem; margin-bottom: 18px; flex-grow: 1; }

/* ==========================================================================
   Forms / Calculators
   ========================================================================== */

.tool-layout {
  display: grid;
  grid-template-columns: minmax(0, 420px) 1fr;
  gap: 40px;
  align-items: start;
}
@media (max-width: 900px) { .tool-layout { grid-template-columns: 1fr; } }

.calc-panel {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 24px;
}

.field { margin-bottom: 18px; }
.field label {
  display: block;
  font-size: 0.88rem;
  font-weight: 600;
  margin-bottom: 6px;
  color: var(--text);
}
.field .hint { font-size: 0.8rem; color: var(--text-faint); margin-top: 4px; }

.field input[type="number"],
.field input[type="text"],
.field select {
  width: 100%;
  background: var(--bg-raised);
  border: 1px solid var(--border-strong);
  color: var(--text);
  padding: 10px 12px;
  border-radius: var(--radius-sm);
  font-size: 1rem;
  font-family: var(--font-mono);
}
.field input:focus, .field select:focus { border-color: var(--accent); }

.field-row { display: grid; grid-template-columns: 1fr 1fr; gap: 14px; }
@media (max-width: 480px) { .field-row { grid-template-columns: 1fr; } }

.result-box {
  background: var(--bg-raised);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 22px;
  margin-top: 4px;
}
.result-box .result-label {
  font-size: 0.82rem;
  color: var(--text-faint);
  margin-bottom: 4px;
}
.result-box .result-value {
  font-family: var(--font-mono);
  font-size: 2rem;
  color: var(--accent);
  font-weight: 600;
  word-break: break-word;
}
.result-box .result-value.good { color: var(--good); }
.result-box .result-value.warn { color: var(--warn); }
.result-box .result-value.bad { color: var(--bad); }

.result-note {
  font-size: 0.85rem;
  color: var(--text-muted);
  margin-top: 10px;
}

.step-list {
  list-style: none;
  margin: 16px 0 0;
  padding: 0;
  font-family: var(--font-mono);
  font-size: 0.9rem;
}
.step-list li {
  padding: 8px 0;
  border-top: 1px dashed var(--border);
  color: var(--text-muted);
}
.step-list li:first-child { border-top: none; }
.step-list strong { color: var(--text); }

.copy-row { display: flex; align-items: center; gap: 10px; margin-top: 14px; }

.badge {
  display: inline-block;
  font-family: var(--font-mono);
  font-size: 0.75rem;
  padding: 4px 10px;
  border-radius: 999px;
  border: 1px solid var(--border-strong);
  color: var(--text-muted);
}
.badge.good { border-color: var(--good); color: var(--good); }
.badge.warn { border-color: var(--warn); color: var(--warn); }
.badge.bad { border-color: var(--bad); color: var(--bad); }

.notice {
  border: 1px solid var(--border);
  border-left: 3px solid var(--accent);
  background: var(--surface);
  padding: 14px 16px;
  border-radius: var(--radius-sm);
  font-size: 0.9rem;
  color: var(--text-muted);
  margin: 20px 0;
}
.notice.limit { border-left-color: var(--warn); }

.explainer { margin-top: 48px; }
.explainer h2 { margin-bottom: 14px; }

.breadcrumbs {
  font-size: 0.85rem;
  color: var(--text-faint);
  margin-bottom: 20px;
}
.breadcrumbs a { color: var(--text-faint); }
.breadcrumbs a:hover { color: var(--accent); }

.faq-item {
  border-top: 1px solid var(--border);
  padding: 18px 0;
}
.faq-item:last-child { border-bottom: 1px solid var(--border); }
.faq-item h3 { font-size: 1rem; margin-bottom: 8px; }
.faq-item p { margin: 0; font-size: 0.92rem; }

.related-tools {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 14px;
  margin-top: 16px;
}
@media (max-width: 700px) { .related-tools { grid-template-columns: 1fr; } }
.related-tools a {
  display: block;
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  padding: 14px;
  color: var(--text);
  font-size: 0.9rem;
  font-weight: 600;
}
.related-tools a:hover { border-color: var(--accent); text-decoration: none; }

.ad-slot {
  border: 1px dashed var(--border-strong);
  border-radius: var(--radius-sm);
  color: var(--text-faint);
  font-size: 0.78rem;
  font-family: var(--font-mono);
  text-align: center;
  padding: 18px;
  margin: 32px 0;
}

table.data-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.9rem;
  margin: 16px 0;
}
table.data-table th, table.data-table td {
  border: 1px solid var(--border);
  padding: 8px 10px;
  text-align: left;
}
table.data-table th { color: var(--text-faint); font-weight: 600; font-family: var(--font-mono); font-size: 0.8rem; }

/* ==========================================================================
   Footer
   ========================================================================== */

.site-footer {
  border-top: 1px solid var(--border);
  padding: 40px 0 32px;
  margin-top: 60px;
}
.footer-grid {
  display: flex;
  justify-content: space-between;
  gap: 24px;
  flex-wrap: wrap;
}
.footer-brand p { font-size: 0.85rem; max-width: 32ch; }
.footer-links {
  display: flex;
  gap: 32px;
  flex-wrap: wrap;
}
.footer-links ul { list-style: none; margin: 0; padding: 0; }
.footer-links a {
  color: var(--text-muted);
  font-size: 0.88rem;
  display: block;
  padding: 4px 0;
}
.footer-links a:hover { color: var(--accent); }
.footer-bottom {
  margin-top: 28px;
  padding-top: 20px;
  border-top: 1px solid var(--border);
  font-size: 0.8rem;
  color: var(--text-faint);
}

/* ==========================================================================
   Utility
   ========================================================================== */

.text-center { text-align: center; }
.visually-hidden {
  position: absolute;
  width: 1px; height: 1px;
  overflow: hidden;
  clip: rect(0 0 0 0);
  white-space: nowrap;
}
.page-head { padding: 48px 0 8px; }
.legal-content h2 { margin-top: 32px; }
.legal-content ul { color: var(--text-muted); }
.placeholder { color: var(--warn); font-family: var(--font-mono); font-size: 0.9em; font-weight: 600; }

/* ==========================================================================
   Buscador de herramientas
   ========================================================================== */

.search-box {
  position: relative;
  max-width: 480px;
  margin-bottom: 32px;
}
.search-box input[type="search"] {
  width: 100%;
  background: var(--surface);
  border: 1px solid var(--border-strong);
  color: var(--text);
  padding: 12px 14px 12px 42px;
  border-radius: var(--radius-sm);
  font-size: 0.95rem;
  font-family: var(--font-body);
}
.search-box input[type="search"]:focus { border-color: var(--accent); }
.search-box svg {
  position: absolute;
  left: 14px;
  top: 50%;
  transform: translateY(-50%);
  pointer-events: none;
  color: var(--text-faint);
}
.search-empty {
  color: var(--text-faint);
  font-size: 0.9rem;
  padding: 24px 0;
  display: none;
}
.search-empty.visible { display: block; }

/* ==========================================================================
   Utilidades para anuncios y estados
   ========================================================================== */

.ad-slot[hidden] { display: none; }

.tag-new {
  display: inline-block;
  font-family: var(--font-mono);
  font-size: 0.68rem;
  color: var(--good);
  border: 1px solid var(--good);
  border-radius: 999px;
  padding: 2px 8px;
  margin-left: 8px;
  vertical-align: middle;
}

.category-pill {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 0.82rem;
  color: var(--text-muted);
  border: 1px solid var(--border);
  border-radius: 999px;
  padding: 6px 14px;
  background: var(--surface);
}
.category-pill-row { display: flex; flex-wrap: wrap; gap: 10px; margin-bottom: 28px; }

.disclosure-note {
  font-size: 0.78rem;
  color: var(--text-faint);
  margin-top: 6px;
}


/* ==========================================================================
   Final polish — responsive cards, calculators, accessibility and utility UI
   ========================================================================== */
.tool-grid { grid-template-columns: repeat(4, minmax(0, 1fr)); align-items: stretch; }
.tool-card { display:flex; flex-direction:column; min-width:0; height:100%; transition:transform .15s ease, border-color .15s ease, background .15s ease; }
.tool-card:hover { transform:translateY(-2px); border-color:var(--border-strong); background:var(--surface-2); }
.tool-card p { flex:1; }
.tool-card .btn { align-self:flex-start; }
.category-card { transition:transform .15s ease, border-color .15s ease; }
.category-card:hover { transform:translateY(-2px); border-color:var(--accent-dim); text-decoration:none; }
.tool-count { display:inline-flex; align-items:center; gap:7px; margin-top:12px; padding:6px 10px; border:1px solid var(--border); border-radius:999px; color:var(--text-muted); font:500 .8rem var(--font-mono); background:rgba(255,255,255,.02); }
.tool-count strong { color:var(--text); }
.search-controls { display:flex; gap:10px; align-items:center; }
.search-controls .search-box { flex:1; }
.search-clear { flex:0 0 auto; }
.filter-row { display:flex; flex-wrap:wrap; gap:8px; margin:14px 0 0; }
.filter-chip { border:1px solid var(--border); background:var(--surface); color:var(--text-muted); padding:7px 11px; border-radius:999px; cursor:pointer; font:500 .82rem var(--font-body); }
.filter-chip:hover, .filter-chip[aria-pressed="true"] { border-color:var(--accent); color:var(--text); background:var(--surface-2); }
.calc-actions { display:flex; justify-content:flex-end; margin-top:14px; padding-top:14px; border-top:1px solid var(--border); }
.btn-ghost { background:transparent; border-color:transparent; color:var(--text-muted); }
.btn-ghost:hover { border-color:var(--border); color:var(--text); }
.notice { border-left:3px solid var(--accent); }
.formula { margin-top:10px; padding:12px 14px; background:var(--bg-raised); border:1px solid var(--border); border-radius:var(--radius-sm); font-family:var(--font-mono); font-size:.88rem; color:var(--text-muted); }
.footer-label { color:var(--text-faint); font:600 .78rem var(--font-mono); text-transform:uppercase; letter-spacing:.08em; margin-bottom:8px; }
.footer-bottom { display:flex; justify-content:space-between; gap:16px; }
@media (max-width: 980px) { .tool-grid { grid-template-columns:repeat(2,minmax(0,1fr)); } }
@media (max-width: 600px) { .container{padding:0 16px;} .tool-grid{grid-template-columns:1fr;} .search-controls{align-items:stretch; flex-direction:column;} .search-clear{width:100%;} .footer-bottom{flex-direction:column;} }
@media print { .site-header,.site-footer,.hero-actions,.calc-actions,.copy-row,.ad-slot{display:none!important;} body::before{display:none;} body{background:#fff;color:#111;} p{color:#333;} .tool-card,.result-box,.calc-panel{border-color:#ccc;background:#fff;} }

.tool-meta{display:inline-flex;flex-wrap:wrap;gap:8px;color:var(--text-faint);font:500 .78rem var(--font-mono);}