/* ==========================================================================
   Nerdy Planet — formulario del comprador
   Solo light mode (a diferencia del panel admin).
   Misma estetica de marca: planeta retro naranja / teal / verde salvia.
   ========================================================================== */

@font-face {
  font-family: 'Josefin Sans';
  src: url('/assets/josefin-sans.woff2') format('woff2');
  font-weight: 400 700;
  font-style: normal;
  font-display: swap;
}
@font-face {
  font-family: 'Lato';
  src: url('/assets/lato-400.woff2') format('woff2');
  font-weight: 400;
  font-style: normal;
  font-display: swap;
}
@font-face {
  font-family: 'Lato';
  src: url('/assets/lato-700.woff2') format('woff2');
  font-weight: 700;
  font-style: normal;
  font-display: swap;
}

:root {
  --np-orange: #fe6902;
  --np-orange-soft: #e67e22;
  --np-teal: #3e9080;
  --np-sage: #d6e0d2;
  --np-green: #80aa8d;
  --np-charcoal: #2d3e46;
  --np-gold: #f5c518;
  --np-cream: #fffdf1;

  --bg: #fffdf1;
  --bg-alt: #f6f3e8;
  --surface: #ffffff;
  --surface-2: #faf8f1;
  --surface-3: #f1eee3;
  --text: #2d3e46;
  --text-soft: #56696f;
  --text-muted: #8a979b;
  --border: #e6e1d2;
  --border-strong: #d5cdb8;
  --primary: #fe6902;
  --primary-hover: #e5600a;
  --primary-soft: #fff1e6;
  --primary-text: #ffffff;
  --accent: #3e9080;
  --accent-soft: #e3f1ee;
  --success: #1d7a4c;
  --success-soft: #e3f5ec;
  --danger: #c0392b;
  --danger-soft: #fdeceb;
  --shadow-sm: 0 1px 2px rgba(45, 62, 70, .06);
  --shadow: 0 2px 10px rgba(45, 62, 70, .08);
  --radius: 12px;
  --radius-sm: 8px;

  color-scheme: light;
}

*, *::before, *::after { box-sizing: border-box; }
[hidden] { display: none !important; }
html { -webkit-text-size-adjust: 100%; }

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font: 16px/1.55 'Lato', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  -webkit-font-smoothing: antialiased;
}

h1, h2, h3 {
  font-family: 'Josefin Sans', 'Lato', sans-serif;
  font-weight: 600;
  margin: 0;
}

.wrap { max-width: 680px; margin: 0 auto; padding: 0 20px; }
.muted { color: var(--text-muted); }
.small { font-size: 13px; }
.center { text-align: center; }

.icon { width: 1.15em; height: 1.15em; flex: none; vertical-align: -.18em; }

/* ---------------------------------------------------------------- header */
.brand {
  background: var(--surface);
  border-bottom: 1px solid var(--border);
  box-shadow: var(--shadow-sm);
}
.brand-inner {
  max-width: 680px;
  margin: 0 auto;
  padding: 18px 20px;
  display: flex;
  align-items: center;
  gap: 13px;
}
.brand-logo { width: 52px; height: auto; flex: none; }
.brand-name {
  font-family: 'Josefin Sans', sans-serif;
  font-weight: 700;
  font-size: 19px;
  line-height: 1.15;
}
.brand-sub {
  font-size: 12px;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: .09em;
  font-weight: 700;
}

/* ---------------------------------------------------------------- cards */
.card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  box-shadow: var(--shadow-sm);
  padding: 22px;
  margin-bottom: 18px;
}
.card.center { text-align: center; padding: 40px 22px; }
.card h1 { font-size: 21px; margin-bottom: 8px; }
.card h2 {
  font-size: 12px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: .11em;
  color: var(--text-muted);
  margin: 26px 0 12px;
  padding-bottom: 8px;
  border-bottom: 1px solid var(--border);
}
.card h2:first-of-type { margin-top: 0; }

/* ---------------------------------------------------------------- resumen */
.summary {
  background: linear-gradient(135deg, var(--primary-soft), var(--accent-soft));
  border-color: var(--border-strong);
}
.summary-head { display: flex; flex-direction: column; gap: 3px; }
.summary-head .label {
  font-family: 'Josefin Sans', sans-serif;
  font-size: 11px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: .1em;
  color: var(--text-muted);
}
.summary-head strong { font-size: 17px; font-weight: 700; }
.summary-meta {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
  margin-top: 10px;
}
.summary-total {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  margin-top: 16px;
  padding-top: 14px;
  border-top: 1px solid var(--border-strong);
}
.summary-total span { color: var(--text-soft); font-weight: 700; }
.summary-total strong {
  font-family: 'Josefin Sans', sans-serif;
  font-size: 25px;
  color: var(--primary);
}
.chip {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  padding: 3px 10px;
  border-radius: 999px;
  background: rgba(255, 255, 255, .7);
  color: var(--text-soft);
  font-size: 12px;
  font-weight: 700;
}

/* ---------------------------------------------------------------- form */
.grid { display: grid; grid-template-columns: 1fr 1fr; gap: 14px; }
.grid .full { grid-column: 1 / -1; }
@media (max-width: 560px) { .grid { grid-template-columns: 1fr; } }

label { display: flex; flex-direction: column; gap: 5px; }
label > span { font-size: 13px; font-weight: 700; color: var(--text-soft); }

input, textarea, select {
  font: inherit;
  color: var(--text);
  padding: 10px 12px;
  border: 1px solid var(--border-strong);
  border-radius: var(--radius-sm);
  background: var(--surface-2);
  width: 100%;
}
input:focus, textarea:focus, select:focus {
  outline: 2px solid var(--primary);
  outline-offset: -1px;
  background: var(--surface);
}
input.invalid, textarea.invalid { border-color: var(--danger); background: var(--danger-soft); }

.err { color: var(--danger); font-size: 12px; }
.err:empty { display: none; }

.alert {
  background: var(--danger-soft);
  border: 1px solid var(--danger);
  color: var(--danger);
  border-radius: var(--radius-sm);
  padding: 11px 13px;
  margin: 16px 0 0;
  font-size: 14px;
  display: flex;
  gap: 8px;
  align-items: flex-start;
}
.alert.ok { background: var(--success-soft); border-color: var(--success); color: var(--success); }

button.primary {
  font: inherit;
  font-weight: 700;
  width: 100%;
  margin-top: 22px;
  padding: 13px 18px;
  color: var(--primary-text);
  background: var(--primary);
  border: 0;
  border-radius: var(--radius-sm);
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
}
button.primary:hover { background: var(--primary-hover); }
button.primary:disabled { opacity: .6; cursor: not-allowed; }

footer { padding: 26px 0 44px; text-align: center; color: var(--text-muted); font-size: 13px; }