/* =============================================================
   TecaFlex Tools — styles.css
   1. Tokens  2. Reset  3. Utilities  4. Typography  5. Components
   6. Sections  7. Effects  8. Responsive  9. Reduced-motion
   ============================================================= */

/* =============================================================
   1. Tokens (idénticos a Academia TecaFlex)
   ============================================================= */
:root {
  --navy: #0b1b33;
  --navy-2: #10233f;
  --navy-3: #16294a;
  --paper: #fafaf7;
  --paper-2: #f1efe9;
  --ink: #0b1b33;
  --muted: #5b6472;
  --muted-dark: #a9b4c4;
  --line: rgba(255, 255, 255, 0.1);
  --line-dark: rgba(11, 27, 51, 0.12);
  --accent: #e8722a;
  --accent-2: #c85d1b;
  --ok: #2f8f5b;

  --sans: "Inter", ui-sans-serif, system-ui, sans-serif, "Apple Color Emoji", "Segoe UI Emoji";
  --ease-out: cubic-bezier(0.16, 1, 0.3, 1);
  --radius: 16px;
  --radius-sm: 10px;
  --container: 1180px;
}

/* =============================================================
   2. Reset & base
   ============================================================= */
*, *::before, *::after { box-sizing: border-box; margin: 0; }
html {
  -webkit-text-size-adjust: 100%;
  scroll-behavior: smooth;
  overflow-x: clip;
}
body {
  font-family: var(--sans);
  font-size: 16px;
  line-height: 1.6;
  color: var(--ink);
  background: var(--paper);
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
  overflow-x: clip;
  overscroll-behavior-y: none;
}
img, svg, video { display: block; max-width: 100%; }
img { height: auto; }
button { font: inherit; color: inherit; cursor: pointer; border: 0; background: none; }
a { color: inherit; text-decoration: none; }
p { text-wrap: pretty; }
h1, h2, h3, h4 { text-wrap: balance; line-height: 1.08; letter-spacing: -0.02em; font-weight: 700; }
ul, ol { padding-left: 1.2rem; }
::selection { background: var(--accent); color: #fff; }
:focus-visible { outline: 2px solid var(--accent); outline-offset: 3px; border-radius: 4px; }

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
}

/* =============================================================
   3. Utilities
   ============================================================= */
.container { width: 100%; max-width: var(--container); margin-inline: auto; padding-inline: 1.25rem; }
.section { padding-block: clamp(3rem, 7vw, 6rem); }
.section-alt { background: var(--paper-2); }
.section-dark { background: var(--navy); color: #fff; }
.section-dark .muted { color: var(--muted-dark); }
.eyebrow {
  display: inline-block;
  font-size: 0.78rem; font-weight: 700; letter-spacing: 0.08em;
  text-transform: uppercase; color: var(--accent); margin-bottom: 0.75rem;
}
.muted { color: var(--muted); }
.center { text-align: center; }
.stack { display: flex; flex-direction: column; gap: 1rem; }
.skip-link {
  position: fixed; top: -100px; left: 1rem; padding: .6rem 1rem;
  background: var(--paper); color: var(--ink); z-index: 9999; border-radius: 8px; font-weight: 600;
}
.skip-link:focus { top: 1rem; }
.sr-only {
  position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px;
  overflow: hidden; clip: rect(0,0,0,0); white-space: nowrap; border: 0;
}
[data-reveal] { opacity: 0; transform: translateY(16px); transition: opacity .6s var(--ease-out), transform .6s var(--ease-out); }
[data-reveal].is-visible { opacity: 1; transform: none; }

/* =============================================================
   4. Typography
   ============================================================= */
.h-display { font-size: clamp(2.1rem, 5.4vw, 3.6rem); }
.h-section { font-size: clamp(1.6rem, 3.4vw, 2.4rem); margin-bottom: .75rem; }
.lede { font-size: clamp(1.05rem, 1.6vw, 1.2rem); color: var(--muted); max-width: 62ch; }
.section-dark .lede { color: var(--muted-dark); }

/* =============================================================
   5. Components
   ============================================================= */

/* Botones */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: .5rem;
  padding: .85rem 1.65rem; border-radius: 999px; font-weight: 600; font-size: .95rem;
  letter-spacing: -0.01em; transition: all .2s var(--ease-out); white-space: nowrap;
}
.btn-accent { background: var(--accent); color: #fff; }
.btn-accent:hover { background: var(--accent-2); transform: translateY(-1px); }
.btn-outline-light { border: 1px solid var(--line); color: #fff; }
.btn-outline-light:hover { border-color: rgba(255,255,255,.4); background: rgba(255,255,255,.04); }
.btn-outline-dark { border: 1px solid var(--line-dark); color: var(--navy); }
.btn-outline-dark:hover { border-color: var(--navy); background: rgba(11,27,51,.03); }
.btn-block { width: 100%; }
.btn[disabled] { opacity: .5; cursor: not-allowed; }
.link-btn { color: var(--accent); font-weight: 600; text-decoration: underline; text-underline-offset: 2px; }
.link-btn:hover { color: var(--accent-2); }

/* Header */
.site-header {
  position: sticky; top: 0; z-index: 100;
  background: rgba(250, 250, 247, 0.92); backdrop-filter: blur(10px) saturate(160%);
  border-bottom: 1px solid var(--line-dark);
}
@supports not (backdrop-filter: blur(1px)) { .site-header { background: var(--paper); } }
.site-header-inner { display: flex; align-items: center; justify-content: space-between; padding-block: .9rem; }
.wordmark { display: flex; flex-direction: column; line-height: 1; font-weight: 800; letter-spacing: -0.01em; }
.wordmark small { font-size: .62rem; font-weight: 700; letter-spacing: .14em; color: var(--accent); }
.wordmark span { font-size: 1.15rem; }
.nav-toggle { display: inline-flex; padding: .5rem; }
.nav-toggle svg { width: 22px; height: 22px; }
.nav-menu {
  position: fixed; inset: 64px 0 0 0; background: var(--paper); padding: 1.5rem;
  display: flex; flex-direction: column; gap: 1.1rem; font-weight: 600;
  transform: translateY(-8px); opacity: 0; pointer-events: none;
  transition: opacity .25s var(--ease-out), transform .25s var(--ease-out);
  overflow-y: auto;
}
.nav-menu.is-open { opacity: 1; transform: none; pointer-events: auto; }
.nav-menu a:not(.btn) { padding-block: .4rem; border-bottom: 1px solid var(--line-dark); }

/* Aviso global */
.aviso-global {
  background: var(--accent); color: #fff; text-align: center;
  font-size: .88rem; font-weight: 600; padding: .55rem 1rem;
}

/* Hero */
.hero { padding-block: clamp(3rem, 9vw, 6.5rem) clamp(2.5rem, 6vw, 4rem); }
.hero-inner { display: flex; flex-direction: column; gap: 1.25rem; max-width: 46rem; }
.hero-actions { display: flex; flex-wrap: wrap; gap: .75rem; margin-top: .5rem; }

/* Tarjetas de herramientas */
.tools-grid { display: grid; grid-template-columns: 1fr; gap: 1.1rem; margin-top: 2rem; }
.tool-card {
  background: #fff; border: 1px solid var(--line-dark); border-radius: var(--radius);
  padding: 1.5rem; display: flex; flex-direction: column; gap: .6rem;
}
.tool-card-top { display: flex; justify-content: space-between; align-items: center; }
.tool-question { font-weight: 600; color: var(--navy); }
.badge {
  display: inline-flex; align-items: center; padding: .25rem .65rem; border-radius: 999px;
  font-size: .72rem; font-weight: 700; letter-spacing: .03em; text-transform: uppercase;
}
.badge-gratis { background: rgba(47,143,91,.12); color: var(--ok); }
.badge-premium { background: rgba(232,114,42,.12); color: var(--accent-2); }
.tool-locked { display: flex; flex-direction: column; gap: .6rem; margin-top: .25rem; }
.tool-locked span { font-size: .85rem; color: var(--muted); }

/* Precio */
.pricing-card {
  background: var(--navy); color: #fff; border-radius: 20px; padding: clamp(1.75rem, 4vw, 2.75rem);
  max-width: 30rem; margin-inline: auto; text-align: center;
}
.pricing-amount { font-size: clamp(2.6rem, 6vw, 3.6rem); font-weight: 800; margin-block: .5rem; }
.pricing-amount sub { font-size: 1rem; font-weight: 600; color: var(--muted-dark); }
.pricing-list { text-align: left; list-style: none; padding: 0; display: grid; gap: .6rem; margin-block: 1.5rem; }
.pricing-list li { display: flex; gap: .6rem; align-items: flex-start; }
.pricing-list li::before { content: "✓"; color: var(--accent); font-weight: 800; }
.pricing-cancel { font-size: .85rem; color: var(--muted-dark); margin-top: .75rem; }

/* Academia connection */
.academia-card {
  display: flex; flex-direction: column; gap: 1rem; align-items: flex-start;
  background: var(--paper-2); border-radius: var(--radius); padding: 1.75rem;
}
@media (min-width: 720px) {
  .academia-card { flex-direction: row; align-items: center; justify-content: space-between; }
}

/* Calculadora (app-like: sin marketing, rápida) */
.calc-card {
  background: #fff; border: 1px solid var(--line-dark); border-radius: var(--radius);
  padding: clamp(1.25rem, 3vw, 2rem); max-width: 40rem; margin-inline: auto;
}
.calc-field { display: flex; flex-direction: column; gap: .4rem; margin-bottom: 1.1rem; }
.calc-field[hidden] { display: none; }
.calc-field label { font-weight: 600; font-size: .92rem; }
.calc-field .hint { font-size: .8rem; color: var(--muted); }
.calc-input-wrap { position: relative; }
.calc-input-wrap input {
  width: 100%; font-size: 1.05rem; padding: .85rem 1rem; padding-right: 2.6rem;
  border: 1px solid var(--line-dark); border-radius: var(--radius-sm); font-family: var(--sans);
  background: var(--paper);
}
.calc-input-wrap input:focus { border-color: var(--accent); outline: none; box-shadow: 0 0 0 3px rgba(232,114,42,.15); }
.calc-field > input[type="email"],
.calc-field > input[type="password"],
.calc-field > input[type="text"] {
  width: 100%; font-size: 1.05rem; padding: .85rem 1rem;
  border: 1px solid var(--line-dark); border-radius: var(--radius-sm); font-family: var(--sans);
  background: var(--paper);
}
.calc-field > input:focus { border-color: var(--accent); outline: none; box-shadow: 0 0 0 3px rgba(232,114,42,.15); }
.calc-input-wrap .suffix {
  position: absolute; right: .9rem; top: 50%; transform: translateY(-50%); color: var(--muted); font-weight: 600;
  pointer-events: none;
}
.calc-error { color: #b3261e; font-size: .85rem; margin-top: .3rem; min-height: 1.1em; }
.calc-radio-group { display: flex; gap: 1.25rem; flex-wrap: wrap; }
.calc-radio { display: flex; align-items: center; gap: .5rem; font-weight: 600; }

.calc-result { margin-top: 1.5rem; padding-top: 1.5rem; border-top: 1px solid var(--line-dark); text-align: center; }
.calc-result[hidden] { display: none; }
.calc-result-label { font-size: .85rem; color: var(--muted); font-weight: 600; text-transform: uppercase; letter-spacing: .04em; }
.calc-result-value { font-size: clamp(2.4rem, 7vw, 3.4rem); font-weight: 800; color: var(--navy); margin-block: .35rem; }
.calc-breakdown { text-align: left; margin-top: 1rem; display: grid; gap: .4rem; font-size: .9rem; color: var(--muted); }
.calc-breakdown div { display: flex; justify-content: space-between; gap: 1rem; }
.calc-disclaimer { font-size: .8rem; color: var(--muted); margin-top: 1rem; }
.calc-note {
  font-size: .85rem; color: var(--navy); background: rgba(232,114,42,.08);
  border-radius: var(--radius-sm); padding: .75rem 1rem; margin-top: 1rem;
}

/* Bloqueo de herramientas premium (auth-gate.js) */
.calc-locked-panel { text-align: center; padding-block: 1rem; }
.calc-locked-title { font-size: 1.15rem; font-weight: 700; color: var(--navy); margin-bottom: .5rem; }
.calc-locked-panel .muted { margin-bottom: 1.25rem; }

/* Cross-sell */
.cross-sell { margin-top: 2.5rem; }
.cross-sell-kicker { text-align: center; font-weight: 700; color: var(--navy); margin-bottom: 1.25rem; }
.cross-sell-grid { display: grid; grid-template-columns: 1fr; gap: 1rem; }
.cross-sell-card {
  background: var(--paper-2); border-radius: var(--radius); padding: 1.5rem;
  display: flex; flex-direction: column; gap: .75rem;
}
.cross-sell-card h3 { font-size: 1.05rem; }
.cross-sell-card p { color: var(--muted); font-size: .92rem; }
.cross-sell-card .btn { align-self: flex-start; }

/* FAQ */
.faq-item { border-bottom: 1px solid var(--line-dark); padding-block: 1rem; }
.faq-item h3 { font-size: 1.02rem; margin-bottom: .4rem; }
.faq-item p { color: var(--muted); }

/* Aviso de cookies (§37) */
.cookie-banner {
  position: fixed; left: 1rem; right: 1rem; bottom: 1rem; z-index: 998;
  max-width: 40rem; margin-inline: auto;
  background: var(--navy); color: #fff; border-radius: var(--radius);
  padding: 1.1rem 1.25rem; display: flex; flex-direction: column; gap: .9rem;
  box-shadow: 0 20px 50px rgba(11,27,51,.35);
}
.cookie-banner p { font-size: .88rem; color: var(--muted-dark); }
.cookie-banner a { color: #fff; text-decoration: underline; }
.cookie-banner-actions { display: flex; gap: .6rem; flex-wrap: wrap; }
.cookie-banner-actions .btn { flex: 1 1 auto; }
.cookie-banner-actions .btn-outline-dark { color: #fff; border-color: var(--line); }
.cookie-banner-actions .btn-outline-dark:hover { border-color: rgba(255,255,255,.4); background: rgba(255,255,255,.06); }

/* Toast (nunca alert()) */
.toast-host { position: fixed; bottom: 1.25rem; left: 50%; transform: translateX(-50%); z-index: 999; display: flex; flex-direction: column; gap: .5rem; width: min(92vw, 26rem); }
.toast {
  background: var(--navy); color: #fff; padding: .85rem 1.1rem; border-radius: var(--radius-sm);
  font-size: .88rem; box-shadow: 0 12px 30px rgba(11,27,51,.25);
  opacity: 0; transform: translateY(10px); transition: opacity .25s var(--ease-out), transform .25s var(--ease-out);
}
.toast.is-visible { opacity: 1; transform: none; }

/* Footer */
.site-footer { background: var(--navy); color: var(--muted-dark); padding-block: 3rem 2rem; font-size: .88rem; }
.footer-grid { display: grid; gap: 2rem; grid-template-columns: 1fr; }
.footer-links { display: flex; flex-direction: column; gap: .5rem; }
.footer-links a:hover { color: #fff; }
.footer-disclaimer { border-top: 1px solid var(--line); margin-top: 2rem; padding-top: 1.5rem; font-size: .8rem; }
.footer-bottom { display: flex; flex-wrap: wrap; gap: .5rem 1.5rem; justify-content: space-between; margin-top: 1.5rem; }

/* Legal pages */
.legal-content { max-width: 68ch; margin-inline: auto; }
.legal-content h2 { margin-top: 2rem; font-size: 1.25rem; }
.legal-content p, .legal-content li { color: var(--muted); margin-top: .6rem; }
.legal-placeholder { background: rgba(232,114,42,.1); border-radius: var(--radius-sm); padding: .2rem .5rem; color: var(--accent-2); font-weight: 700; }

/* =============================================================
   8. Responsive
   ============================================================= */
@media (min-width: 540px) {
  .cross-sell-grid { grid-template-columns: 1fr 1fr; }
}
@media (min-width: 720px) {
  .nav-toggle { display: none; }
  .nav-menu {
    position: static; inset: auto; padding: 0; flex-direction: row; align-items: center; gap: 1.75rem;
    opacity: 1; transform: none; pointer-events: auto; background: none;
  }
  .nav-menu a:not(.btn) { border-bottom: 0; padding-block: 0; }
  .tools-grid { grid-template-columns: repeat(2, 1fr); }
  .footer-grid { grid-template-columns: 2fr 1fr 1fr; }
}
@media (min-width: 960px) {
  .tools-grid { grid-template-columns: repeat(3, 1fr); }
}
@media (min-width: 1280px) {
  .hero-inner { max-width: 50rem; }
}