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

html, body { height: 100%; }

body {
  margin: 0;
  font-family: var(--font-body);
  font-weight: var(--font-weight-400);
  font-size: 1rem;
  line-height: 1.6;
  color: var(--color-text);
  background: var(--color-bg);
  text-rendering: optimizeLegibility;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

img, svg, video, canvas { display: block; max-width: 100%; }

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

h1, h2, h3 {
  margin: 0;
  font-family: var(--font-title);
  font-weight: var(--font-weight-900);
  line-height: 1.1;
  letter-spacing: -0.01em;
  color: var(--color-text);
}

h4, h5, h6 {
  margin: 0;
  font-family: var(--font-body);
  font-weight: var(--font-weight-600);
  line-height: 1.3;
  color: var(--color-text);
}

p { margin: 0; }
small { font-size: 0.875rem; color: var(--color-muted); }

ul, ol { margin: 0; padding-left: 1.2rem; }
li { margin: .15rem 0; }

hr {
  border: 0;
  height: 1px;
  background: var(--color-border);
  margin: var(--space-5) 0;
}

:focus { outline: none; }
:focus-visible {
  box-shadow: var(--focus-ring);
  border-radius: var(--radius-btn);
}

::selection { background: rgba(114, 150, 212, 0.20); }

/* ── Layout ── */
.container {
  width: min(var(--container-max), 92vw);
  margin-inline: auto;
}

.page { display: flex; flex-direction: column; min-height: 100%; }
.page__main { flex: 1; }

.stack > * + * { margin-top: var(--space-4); }

/* ── Utilidades de texto ── */
.muted        { color: var(--color-muted); }
.text-accent  { color: var(--color-accent); }
.text-success { color: var(--color-success); }
.text-danger  { color: var(--color-danger); }
.text-inverse { color: var(--color-text-inverse); }

/* ── Card ── */
.card {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-card);
  box-shadow: var(--shadow-card);
  transition: box-shadow 200ms ease;
}
.card:hover { box-shadow: var(--shadow-card-hover); }
.card--pad { padding: var(--space-5); }

/* ── Botones ── */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: .5rem;
  appearance: none;
  font-family: var(--font-body);
  font-weight: var(--font-weight-600);
  font-size: 1rem;
  line-height: 1;
  border-radius: var(--radius-btn);
  padding: .75rem 1.5rem;
  cursor: pointer;
  border: 1px solid transparent;
  transition: var(--transition);
  text-decoration: none;
}
.btn:hover { text-decoration: none; }
.btn:active { transform: scale(0.98); }
.btn:disabled { opacity: .55; cursor: not-allowed; transform: none; }

.btn--primary {
  background: var(--color-accent);
  color: #FFFFFF;
  border-color: transparent;
  box-shadow: var(--shadow-cta);
}
.btn--primary:hover {
  background: var(--color-accent-hover);
  color: #FFFFFF;
}

.btn--secondary {
  color: var(--color-ink) !important;
  background: transparent;
  color: var(--color-text);
  border-color: var(--color-border);
}
.btn--secondary:hover {
  background: var(--color-bg-secondary);
  border-color: var(--color-accent);
  color: var(--color-text);
}

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

.btn--danger {
  background: var(--color-danger);
  color: #FFFFFF;
  border-color: transparent;
}
.btn--danger:hover { opacity: .88; }

/* ── Inputs ── */
.input,
select.input,
textarea.input {
  width: 100%;
  appearance: none;
  border: 1px solid var(--color-border);
  background: var(--color-surface);
  color: var(--color-text);
  border-radius: var(--radius-input);
  padding: .75rem 1rem;
  font-family: var(--font-body);
  font-weight: var(--font-weight-400);
  font-size: 1rem;
  transition: border-color 200ms ease, box-shadow 200ms ease;
}
textarea.input { min-height: 7.5rem; resize: vertical; }

.input::placeholder { color: var(--color-muted); opacity: 1; }
.input:focus-visible {
  border-color: var(--color-accent);
  box-shadow: 0 0 0 3px rgba(114, 150, 212, 0.20);
}
.input[aria-invalid="true"] { border-color: var(--color-danger); }

/* ── Labels y formularios ── */
.label {
  display: block;
  font-family: var(--font-body);
  font-weight: var(--font-weight-600);
  font-size: 0.875rem;
  margin-bottom: var(--space-2);
  color: var(--color-text);
}

.form-row    { display: flex; flex-direction: column; gap: var(--space-2); }
.form-actions { display: flex; gap: var(--space-3); flex-wrap: wrap; }

/* ── Notices / alertas ── */
.notice {
  border: 1px solid var(--color-border);
  background: var(--color-surface);
  border-radius: var(--radius-card);
  padding: var(--space-4) var(--space-5);
}
.notice--success { border-color: rgba(45, 138, 86, 0.40); background: rgba(45, 138, 86, 0.06); }
.notice--danger  { border-color: rgba(196, 66, 75, 0.40);  background: rgba(196, 66, 75, 0.06); }
.notice--info    { border-color: rgba(114, 150, 212, 0.40); background: rgba(114, 150, 212, 0.06); }

/* ── Grid helpers ── */
.grid { display: grid; gap: var(--space-5); }
.grid--2 { grid-template-columns: 1fr; }
@media (min-width: 640px) { .grid--2 { grid-template-columns: 1fr 1fr; } }

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