/* ==========================================================================
   Rawentry — style.css
   Reset moderno + variables + layout base. Mobile-first.
   ========================================================================== */

/* JetBrains Mono via Google Fonts (no requiere archivos locales) */
@import url('https://fonts.googleapis.com/css2?family=JetBrains+Mono:ital,wght@0,400;0,700;1,400&display=swap');

:root {
  /* Paleta — tema oscuro (default) */
  --bg-0: #0a0e14;
  --bg-1: #10151d;
  --bg-2: #171e29;
  --bg-3: #212a38;
  --border: #2a3444;
  --text-0: #e6f1ff;
  --text-1: #a9b7c9;
  --text-2: #6c7a8f;
  --accent: #00ff9c;
  --accent-dim: #00b571;
  --accent-2: #38bdf8;
  --danger: #ff5c73;
  --warning: #ffb454;
  --success: #00ff9c;

  --font-mono: 'JetBrains Mono', ui-monospace, 'SF Mono', Consolas, 'Liberation Mono', monospace;
  --font-sans: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;

  --radius-sm: 6px;
  --radius-md: 10px;
  --radius-lg: 16px;
  --space-1: 4px;
  --space-2: 8px;
  --space-3: 16px;
  --space-4: 24px;
  --space-5: 40px;
  --space-6: 64px;

  --font-size-base: 16px;
  --shadow-md: 0 8px 24px rgba(0,0,0,.35);
  --transition: 150ms ease;
}

/* Tema claro (opcional, toggle vía data-theme) */
[data-theme="light"] {
  --bg-0: #f6f8fb;
  --bg-1: #ffffff;
  --bg-2: #eef1f6;
  --bg-3: #e3e8ef;
  --border: #d3dae4;
  --text-0: #101623;
  --text-1: #3c4757;
  --text-2: #6c7a8f;
  --accent-dim: #00a066;
}

/* Modo alto contraste */
[data-contrast="high"] {
  --bg-0: #000000;
  --bg-1: #000000;
  --text-0: #ffffff;
  --text-1: #ffffff;
  --border: #ffffff;
  --accent: #00ff00;
}

/* Modo dislexia: usamos una fuente sans más espaciada como aproximación local */
[data-dyslexia="on"] body {
  font-family: var(--font-sans);
  letter-spacing: 0.02em;
  line-height: 1.8;
}

/* Reducción de movimiento */
[data-motion="reduced"] * {
  animation: none !important;
  transition: none !important;
  scroll-behavior: auto !important;
}

* , *::before, *::after { box-sizing: border-box; }
html { font-size: var(--font-size-base); scroll-behavior: smooth; }
body {
  margin: 0;
  min-height: 100vh;
  background:
    radial-gradient(ellipse at top, rgba(0,255,156,0.05), transparent 55%),
    var(--bg-0);
  background-attachment: fixed;
  color: var(--text-0);
  font-family: var(--font-mono);
  line-height: 1.55;
  -webkit-font-smoothing: antialiased;
  position: relative;
}
/* Scanlines sutiles — puramente estético, se desactiva con reducción de movimiento */
body::before {
  content: '';
  position: fixed;
  inset: 0;
  pointer-events: none;
  z-index: 1;
  background: repeating-linear-gradient(
    to bottom,
    rgba(255,255,255,0.012) 0px,
    rgba(255,255,255,0.012) 1px,
    transparent 1px,
    transparent 3px
  );
  mix-blend-mode: overlay;
}
[data-theme="light"] body::before { display: none; }
[data-contrast="high"] body::before { display: none; }

h1, h2, h3, h4 { font-family: var(--font-mono); line-height: 1.25; margin: 0 0 var(--space-3); letter-spacing: -0.01em; }
h1 { text-shadow: 0 0 18px rgba(0,255,156,0.35); }
h1::before { content: '$ '; color: var(--accent-dim); }
p { margin: 0 0 var(--space-3); color: var(--text-1); }
a { color: var(--accent-2); text-decoration: none; }
a:hover, a:focus-visible { text-decoration: underline; text-shadow: 0 0 8px rgba(56,189,248,0.5); }
code, pre, .mono { font-family: var(--font-mono); }
img { max-width: 100%; display: block; }
::selection { background: var(--accent); color: var(--bg-0); }

/* Foco visible para navegación por teclado — WCAG 2.4.7 */
:focus-visible {
  outline: 3px solid var(--accent);
  outline-offset: 2px;
}

.skip-link {
  position: absolute;
  left: -9999px;
  top: 0;
  background: var(--accent);
  color: var(--bg-0);
  padding: var(--space-2) var(--space-3);
  z-index: 999;
}
.skip-link:focus { left: var(--space-3); top: var(--space-3); }

.container {
  max-width: 1100px;
  margin: 0 auto;
  padding: 0 var(--space-3);
}

/* Grid utilitario */
.grid { display: grid; gap: var(--space-3); }
.grid-2 { grid-template-columns: 1fr; }
.grid-3 { grid-template-columns: 1fr; }
@media (min-width: 640px) {
  .grid-2 { grid-template-columns: 1fr 1fr; }
}
@media (min-width: 900px) {
  .grid-3 { grid-template-columns: repeat(3, 1fr); }
}

.flex { display: flex; align-items: center; gap: var(--space-2); }
.flex-between { display: flex; align-items: center; justify-content: space-between; gap: var(--space-2); }
.flex-wrap { flex-wrap: wrap; }

/* Tarjetas */
.card {
  background: var(--bg-1);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  padding: var(--space-4);
}
.card--hover { transition: transform var(--transition), border-color var(--transition); cursor: pointer; }
.card--hover:hover, .card--hover:focus-visible { transform: translateY(-2px); border-color: var(--accent-dim); }

/* Botones */
.btn {
  font-family: var(--font-mono);
  font-size: 0.95rem;
  font-weight: 700;
  border: 1px solid var(--border);
  background: var(--bg-2);
  color: var(--text-0);
  padding: 10px 18px;
  border-radius: var(--radius-sm);
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  transition: background var(--transition), border-color var(--transition), transform var(--transition);
  min-height: 44px; /* objetivo táctil accesible */
}
.btn:hover { border-color: var(--accent-dim); }
.btn:active { transform: scale(0.98); }
.btn-primary { background: var(--accent); color: var(--bg-0); border-color: var(--accent); box-shadow: 0 0 16px rgba(0,255,156,0.25); }
.btn-primary:hover { background: var(--accent-dim); border-color: var(--accent-dim); box-shadow: 0 0 22px rgba(0,255,156,0.4); }
.btn-ghost { background: transparent; }
.btn-danger { border-color: var(--danger); color: var(--danger); background: transparent; }
.btn:disabled { opacity: 0.5; cursor: not-allowed; }

/* Badges / pills */
.badge {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  font-family: var(--font-mono);
  font-size: 0.75rem;
  padding: 3px 10px;
  border-radius: 999px;
  background: var(--bg-3);
  border: 1px solid var(--border);
  color: var(--text-1);
}
.badge--accent { background: rgba(0,255,156,0.12); border-color: var(--accent-dim); color: var(--accent); text-shadow: 0 0 6px rgba(0,255,156,0.5); }
.badge--danger { background: rgba(255,92,115,0.12); border-color: var(--danger); color: var(--danger); }

/* Barra de progreso */
.progress-bar {
  height: 10px;
  background: var(--bg-3);
  border-radius: 999px;
  overflow: hidden;
  border: 1px solid var(--border);
}
.progress-bar__fill {
  height: 100%;
  background: linear-gradient(90deg, var(--accent-dim), var(--accent));
  transition: width 400ms ease;
}

/* Header global */
.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  background: rgba(10,14,20,0.92);
  backdrop-filter: blur(8px);
  border-bottom: 1px solid var(--border);
}
[data-theme="light"] .site-header { background: rgba(255,255,255,0.92); }
.site-header .container { display: flex; align-items: center; justify-content: space-between; padding-top: var(--space-2); padding-bottom: var(--space-2); }
.site-header nav { display: flex; gap: var(--space-3); }
.site-header nav a { color: var(--text-1); font-family: var(--font-mono); font-size: 0.9rem; }
.site-header nav a[aria-current="page"] { color: var(--accent); text-shadow: 0 0 8px rgba(0,255,156,0.5); }

#matrix-bg {
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 260px;
  width: 100%;
  z-index: 0;
  opacity: 0.16;
  pointer-events: none;
}
[data-motion="reduced"] #matrix-bg { display: none; }
main { position: relative; z-index: 1; }

/* Toast de logros */
.toast {
  position: fixed;
  right: var(--space-3);
  bottom: var(--space-3);
  background: var(--bg-2);
  border: 1px solid var(--accent-dim);
  border-radius: var(--radius-md);
  padding: var(--space-3);
  box-shadow: var(--shadow-md);
  max-width: 320px;
  z-index: 200;
  animation: toast-in 220ms ease;
}
@keyframes toast-in { from { transform: translateY(12px); opacity: 0; } to { transform: translateY(0); opacity: 1; } }

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

/* Tamaño de letra ajustable — controlado por JS vía --font-size-base */
html { font-size: var(--font-size-base); }