/* ===== Fuentes auto-alojadas (sin peticiones a Google, RGPD) ===== */
@font-face {
  font-family: "Montserrat";
  font-style: normal;
  font-weight: 500;
  font-display: swap;
  src: url("../fonts/montserrat-500.woff2") format("woff2");
}
@font-face {
  font-family: "Montserrat";
  font-style: normal;
  font-weight: 600;
  font-display: swap;
  src: url("../fonts/montserrat-600.woff2") format("woff2");
}
@font-face {
  font-family: "Montserrat";
  font-style: normal;
  font-weight: 700;
  font-display: swap;
  src: url("../fonts/montserrat-700.woff2") format("woff2");
}
@font-face {
  font-family: "Lora";
  font-style: normal;
  font-weight: 400;
  font-display: swap;
  src: url("../fonts/lora-400.woff2") format("woff2");
}
@font-face {
  font-family: "Lora";
  font-style: italic;
  font-weight: 400;
  font-display: swap;
  src: url("../fonts/lora-400-italic.woff2") format("woff2");
}
@font-face {
  font-family: "Lora";
  font-style: normal;
  font-weight: 500;
  font-display: swap;
  src: url("../fonts/lora-500.woff2") format("woff2");
}
@font-face {
  font-family: "Lora";
  font-style: normal;
  font-weight: 600;
  font-display: swap;
  src: url("../fonts/lora-600.woff2") format("woff2");
}

/* mejoralo.ai — tema minimalista. Un acento, sin decoración superflua. */

/* ===== Tokens (oscuro por defecto) ===== */
:root {
  --bg: #1a1915;
  --surface: #23221d;
  --text: #e8e6e0;
  --muted: #97938a;
  --border: #37352e;
  --border-strong: #4a473e;
  --accent: #d97757;
  --accent-hover: #e08a6d;
  --radius: 8px;
  --font: "Montserrat", "Segoe UI", system-ui, sans-serif;
  --font-serif: "Lora", Georgia, serif;
}

:root[data-theme="light"] {
  --bg: #faf9f5;
  --surface: #ffffff;
  --text: #1f1e1d;
  --muted: #6b6760;
  --border: #e3dfd6;
  --border-strong: #cfc9bc;
  --accent: #bf5a3a;
  --accent-hover: #a84c2f;
}

* { box-sizing: border-box; }

html, body {
  margin: 0;
  padding: 0;
  background: var(--bg);
  color: var(--text);
  font-family: var(--font-serif);
  line-height: 1.6;
  font-size: 16px;
}

/* Grano sutil sobre el fondo: textura tipo papel/impresión, no un
   degradado "moderno". Capa fija, sin interacción, opacidad mínima. */
body::before {
  content: "";
  position: fixed;
  inset: 0;
  z-index: 0;
  pointer-events: none;
  opacity: 0.035;
  mix-blend-mode: overlay;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='120' height='120'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='2' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)'/%3E%3C/svg%3E");
}
.site-header, main, dialog { position: relative; z-index: 1; }

/* ===== Revelado al hacer scroll ===== */
.reveal {
  opacity: 0;
  transform: translateY(16px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}
.reveal.is-visible {
  opacity: 1;
  transform: translateY(0);
}

@media (prefers-reduced-motion: reduce) {
  .reveal { opacity: 1; transform: none; transition: none; }
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    transition-duration: 0.01ms !important;
    scroll-behavior: auto !important;
  }
}

h1, h2, h3, .logo {
  font-family: var(--font);
  font-weight: 600;
  letter-spacing: -0.01em;
}

/* Controles de interfaz: botones, pestañas, campos y menús van en la
   tipografía de títulos (Montserrat) por legibilidad; el texto de lectura
   (párrafos, respuestas del modelo) hereda la de cuerpo (Lora) de <body>. */
input, textarea, select {
  font-family: var(--font);
}

main {
  max-width: 880px;
  margin: 0 auto;
  padding: 24px 24px 96px;
}

button { font-family: var(--font); cursor: pointer; }

.muted { color: var(--muted); }

/* ===== Header ===== */
.site-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 18px 24px;
  border-bottom: 1px solid var(--border);
  position: sticky;
  top: 0;
  background: var(--bg);
  z-index: 10;
}

.logo {
  background: none;
  border: none;
  color: var(--text);
  font-size: 1.2rem;
  padding: 2px 4px;
}

.header-right {
  display: flex;
  align-items: center;
  gap: 16px;
}

.usage-counter { color: var(--muted); font-size: 0.85rem; }
.usage-counter.is-pro { color: var(--text); }
.usage-counter-compact { display: none; color: var(--muted); font-size: 0.85rem; }
.usage-counter-compact.is-pro { color: var(--text); }

/* ===== Botones ===== */
.btn {
  border: 1px solid var(--border-strong);
  background: transparent;
  color: var(--text);
  border-radius: var(--radius);
  padding: 8px 18px;
  font-size: 0.9rem;
  transition: border-color 0.15s, background 0.15s;
}
.btn:hover { border-color: var(--text); }

.btn-primary {
  background: var(--accent);
  border-color: var(--accent);
  color: #fff;
}
.btn-primary:hover { background: var(--accent-hover); border-color: var(--accent-hover); }

.btn-lg { padding: 12px 28px; font-size: 1rem; }

.btn-text {
  background: none;
  border: none;
  color: var(--muted);
  font-size: 0.85rem;
  text-decoration: underline;
  padding: 4px;
}
.btn-text:hover { color: var(--text); }

/* ===== Etiqueta PRO (candado) ===== */
.lock {
  font-family: var(--font);
  font-size: 0.62rem;
  font-weight: 600;
  letter-spacing: 0.08em;
  color: var(--muted);
  border: 1px solid var(--border-strong);
  border-radius: 4px;
  padding: 1px 5px;
  vertical-align: 2px;
}

/* ===== Pestañas ===== */
.tabs {
  display: flex;
  gap: 8px;
  border-bottom: 1px solid var(--border);
  margin-bottom: 32px;
  overflow-x: auto;
}

.tab {
  background: none;
  border: none;
  color: var(--muted);
  padding: 10px 14px;
  font-size: 0.95rem;
  border-bottom: 2px solid transparent;
  white-space: nowrap;
}
.tab:hover { color: var(--text); }
.tab.active {
  color: var(--text);
  border-bottom-color: var(--text);
}

/* ===== Toast ===== */
.toast {
  position: fixed;
  bottom: 28px;
  left: 50%;
  transform: translateX(-50%);
  background: var(--text);
  color: var(--bg);
  border-radius: var(--radius);
  padding: 10px 20px;
  font-size: 0.88rem;
  z-index: 100;
}

/* ===== Paneles ===== */
.panel-title { margin: 0 0 6px; font-size: 1.7rem; }
.panel-sub { margin: 0 0 28px; color: var(--muted); }

/* ===== Tarjeta de entrada ===== */
.input-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 20px;
}

#prompt-input {
  width: 100%;
  background: var(--surface);
  color: var(--text);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 14px;
  font-family: var(--font);
  font-size: 0.95rem;
  resize: vertical;
  min-height: 130px;
}
#prompt-input:focus { border-color: var(--text); outline: 2px solid var(--accent); outline-offset: 2px; }
#prompt-input::placeholder { color: var(--muted); }

.input-footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-top: 14px;
}
.char-count { color: var(--muted); font-size: 0.8rem; }

/* ===== Resultado ===== */
#result { margin-top: 48px; }

.result-header {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  margin-bottom: 24px;
  border-bottom: 1px solid var(--border);
  padding-bottom: 12px;
}
.result-header h2 { margin: 0; font-size: 1.3rem; }

.global-badge { font-family: var(--font-serif); font-size: 1.8rem; }
.global-badge small { color: var(--muted); font-size: 0.9rem; margin-left: 2px; }

.score-row { margin-bottom: 18px; }
.score-row .score-label {
  display: flex;
  justify-content: space-between;
  font-size: 0.9rem;
  margin-bottom: 6px;
}
.score-row .score-value { font-variant-numeric: tabular-nums; }

.score-bar {
  height: 3px;
  background: var(--border);
  border-radius: 2px;
  overflow: hidden;
}
.score-bar-fill {
  height: 100%;
  width: 0;
  background: var(--accent);
  transition: width 0.7s cubic-bezier(0.22, 1, 0.36, 1);
}

.score-explanation {
  color: var(--muted);
  font-family: var(--font-serif);
  font-size: 0.88rem;
  margin: 6px 0 0;
}

/* ===== Comparación ===== */
.compare {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 20px;
  margin-top: 40px;
}
.compare-col {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 20px;
}
.compare-improved { border-color: var(--border-strong); }
.compare-col h3 {
  margin: 0 0 12px;
  font-family: var(--font);
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--muted);
}
.compare-col pre {
  margin: 0;
  white-space: pre-wrap;
  word-break: break-word;
  font-family: var(--font-serif);
  font-size: 0.95rem;
  line-height: 1.7;
}

.result-actions {
  display: flex;
  gap: 12px;
  margin-top: 24px;
  flex-wrap: wrap;
}

/* ===== Pantallas bloqueadas ===== */
.locked-screen { position: relative; min-height: 240px; }

.locked-preview {
  filter: blur(3px);
  opacity: 0.35;
  pointer-events: none;
}
.fake-row {
  height: 60px;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  margin-bottom: 12px;
}

.locked-overlay {
  position: absolute;
  inset: 0;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 14px;
  text-align: center;
  padding: 24px;
}
.locked-overlay p { max-width: 420px; margin: 0; color: var(--muted); }

/* ===== Historial ===== */
.search-input {
  width: 100%;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  color: var(--text);
  padding: 10px 14px;
  font-family: var(--font);
  font-size: 0.9rem;
  margin-bottom: 20px;
}
.search-input:focus { border-color: var(--text); outline: 2px solid var(--accent); outline-offset: 2px; }

.history-item {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  width: 100%;
  text-align: left;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 14px 18px;
  margin-bottom: 10px;
  color: var(--text);
  font-size: 0.9rem;
}
.history-item:hover { border-color: var(--border-strong); }
.history-item .history-prompt {
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
  flex: 1;
}
.history-item .history-date { color: var(--muted); font-size: 0.78rem; white-space: nowrap; }
.history-score {
  font-family: var(--font-serif);
  font-size: 1.05rem;
  min-width: 2.2em;
  text-align: right;
}

/* ===== Plantillas ===== */
.template-category { margin-bottom: 36px; }
.template-category h2 { font-size: 1.15rem; margin: 0 0 14px; }
.template-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(250px, 1fr));
  gap: 14px;
}
.template-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 18px;
  display: flex;
  flex-direction: column;
  gap: 10px;
  transition: transform 0.2s ease, border-color 0.2s ease;
}
.template-card:hover { transform: translateY(-2px); border-color: var(--border-strong); }
.template-card h3 { margin: 0; font-size: 1rem; }
.template-card p {
  margin: 0;
  color: var(--muted);
  font-family: var(--font-serif);
  font-size: 0.86rem;
  display: -webkit-box;
  -webkit-line-clamp: 4;
  -webkit-box-orient: vertical;
  overflow: hidden;
  flex: 1;
}
.template-card .btn { align-self: flex-start; }

/* ===== Paywall ===== */
#paywall {
  background: var(--surface);
  color: var(--text);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 32px;
  max-width: 560px;
  width: calc(100% - 48px);
  position: relative;
}
#paywall::backdrop { background: rgba(31, 30, 29, 0.35); }

.paywall-close {
  position: absolute;
  top: 14px;
  right: 14px;
  background: none;
  border: none;
  color: var(--muted);
  font-size: 0.95rem;
}
.paywall-close:hover { color: var(--text); }

.paywall-title { margin: 0 0 8px; font-size: 1.5rem; }
.paywall-reason { color: var(--accent-hover); margin: 0 0 20px; font-size: 0.9rem; }

.paywall-plans {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
  margin: 20px 0;
}
.paywall-plan {
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 20px;
  display: flex;
  flex-direction: column;
  gap: 10px;
}
.paywall-plan-featured { border-color: var(--border-strong); }
.paywall-plan h3 { margin: 0; font-size: 1.05rem; }
.paywall-plan-price { font-family: var(--font-serif); font-size: 1.5rem; }
.paywall-plan-price small { font-size: 0.85rem; color: var(--muted); }
.paywall-plan p { margin: 0; color: var(--muted); font-size: 0.84rem; flex: 1; }

/* ===== Ajustes ===== */
.account-card p { margin: 6px 0; }
.settings-card { margin-top: 16px; }
.settings-heading {
  font-family: var(--font);
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--muted);
  margin: 0 0 12px;
}
.settings-row {
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
  align-items: center;
}
.btn.active {
  border-color: var(--text);
  background: var(--surface);
}

.result-source {
  color: var(--muted);
  font-size: 0.78rem;
  margin: -16px 0 20px;
}
.dev-tools { margin-top: 32px; color: var(--muted); font-size: 0.85rem; }
.dev-tools summary { cursor: pointer; }
.dev-tools-body { display: flex; gap: 10px; margin-top: 14px; flex-wrap: wrap; }

/* ===== Landing ===== */
.hero {
  text-align: center;
  padding: 72px 0 48px;
}
.hero h1 {
  font-size: 2.6rem;
  line-height: 1.15;
  margin: 0 0 20px;
}
.hero-sub {
  color: var(--muted);
  max-width: 540px;
  margin: 0 auto 32px;
}
.hero-note { font-size: 0.8rem; margin-top: 14px; color: var(--muted); }

/* ===== Demo en vivo del hero ===== */
.hero-demo {
  max-width: 480px;
  margin: 40px auto 0;
  text-align: left;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 18px;
}
.hero-demo-label {
  display: block;
  font-family: var(--font);
  font-size: 0.72rem;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--muted);
  margin-bottom: 10px;
}
#hero-demo-input {
  width: 100%;
  background: var(--bg);
  color: var(--text);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 10px 12px;
  font-family: var(--font);
  font-size: 0.9rem;
  resize: none;
}
#hero-demo-input:focus { border-color: var(--text); outline: 2px solid var(--accent); outline-offset: 2px; }
.hero-demo-actions {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
  margin-top: 12px;
}
.hero-demo-result {
  margin-top: 16px;
  padding-top: 16px;
  border-top: 1px solid var(--border);
  display: flex;
  align-items: center;
  gap: 16px;
}
.hero-demo-score {
  font-family: var(--font-serif);
  font-size: 1.6rem;
  white-space: nowrap;
  font-variant-numeric: tabular-nums;
}
.hero-demo-score small { color: var(--muted); font-size: 0.85rem; }
.hero-demo-line { margin: 0; color: var(--muted); font-size: 0.82rem; }

/* ===== Franja de diferenciadores ===== */
.trust-strip {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(140px, 1fr));
  gap: 0;
  margin: 56px 0;
}
.trust-item {
  text-align: center;
  padding: 8px 12px;
  border-left: 1px solid var(--border);
  font-family: var(--font);
  font-size: 0.78rem;
  font-weight: 600;
  letter-spacing: 0.04em;
  color: var(--muted);
}
.trust-item:first-child { border-left: none; }

/* ===== Cómo funciona ===== */
.how-it-works { margin: 0 0 64px; text-align: center; }
.how-it-works h2 { font-size: 1.6rem; margin-bottom: 40px; }
.steps {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 28px;
}
.step { text-align: left; }
.step-icon {
  width: 30px;
  height: 30px;
  color: var(--accent);
  margin-bottom: 14px;
}
.step h3 { font-size: 1rem; margin: 0 0 6px; }
.step p { margin: 0; color: var(--muted); font-size: 0.85rem; }

.criteria-strip {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(140px, 1fr));
  gap: 0;
  margin: 40px 0 72px;
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
  padding: 24px 0;
}
.criterion {
  padding: 0 18px;
  border-left: 1px solid var(--border);
  transition: transform 0.2s ease;
}
.criterion:first-child { border-left: none; }
.criterion:hover { transform: translateY(-2px); }
.criterion-index {
  display: block;
  font-family: var(--font-serif);
  font-style: italic;
  color: var(--muted);
  font-size: 0.85rem;
  margin-bottom: 6px;
}
.criterion h3 { margin: 0 0 4px; font-size: 0.95rem; }
.criterion p { margin: 0; color: var(--muted); font-size: 0.8rem; }

.pricing { text-align: center; padding-bottom: 24px; }
.pricing h2 { font-size: 1.6rem; margin-bottom: 32px; }
.pricing-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 16px;
  text-align: left;
}
.price-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 26px 24px;
  position: relative;
  display: flex;
  flex-direction: column;
  transition: transform 0.2s ease, border-color 0.2s ease;
}
.price-card:hover { transform: translateY(-3px); border-color: var(--border-strong); }
.price-card-featured { border-color: var(--border-strong); }
.price-tag {
  position: absolute;
  top: -10px;
  right: 18px;
  background: var(--bg);
  color: var(--muted);
  font-size: 0.68rem;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  padding: 2px 8px;
  border: 1px solid var(--border-strong);
  border-radius: 4px;
}
.price-card h3 { margin: 0 0 10px; font-size: 1.05rem; }
.price { font-family: var(--font-serif); font-size: 2rem; }
.price small { font-size: 0.9rem; color: var(--muted); }
.price-alt { font-size: 0.8rem; margin: 4px 0 0; color: var(--muted); }
.price-card ul {
  list-style: none;
  padding: 0;
  margin: 20px 0 24px;
  font-size: 0.88rem;
  color: var(--muted);
  flex: 1;
}
.price-card li {
  padding: 5px 0;
  border-bottom: 1px solid var(--border);
}
.price-card li:last-child { border-bottom: none; }
.price-card .btn { width: 100%; }

/* ===== Responsive ===== */
@media (max-width: 640px) {
  .hero h1 { font-size: 1.9rem; }
  .compare { grid-template-columns: 1fr; }
  .paywall-plans { grid-template-columns: 1fr; }
  .input-footer { flex-direction: column; align-items: stretch; gap: 10px; text-align: center; }
  .result-header { flex-direction: column; align-items: flex-start; gap: 8px; }
  .history-item { flex-wrap: wrap; }
  .history-item .history-prompt { flex-basis: 100%; white-space: normal; }
  .usage-counter { display: none; }
  .usage-counter-compact { display: inline; }
  .criterion { border-left: none; padding: 8px 0; }
  .trust-item { border-left: none; padding: 6px 0; }
  .hero-demo-actions { flex-direction: column; align-items: stretch; }
  .hero-demo-actions .btn-text { order: 2; text-align: center; }
  .hero-demo-result { flex-direction: column; align-items: flex-start; }
}

/* ===== Focus ===== */
:focus-visible {
  outline: 2px solid var(--text);
  outline-offset: 2px;
}

/* ===== Páginas legales y footer ===== */
.legal-header {
  display: flex;
  align-items: center;
  padding: 20px 24px;
  border-bottom: 1px solid var(--border);
}
.legal-brand {
  font-family: var(--font);
  font-weight: 700;
  font-size: 1.05rem;
  color: var(--text);
  text-decoration: none;
}
.legal-brand:hover { color: var(--accent-hover); }
.legal-wrap {
  max-width: 720px;
  margin: 0 auto;
  padding: 40px 20px 64px;
}
.legal-prose {
  font-family: var(--font-serif);
  color: var(--text);
  line-height: 1.75;
  font-size: 1.02rem;
}
.legal-prose h1 {
  font-family: var(--font);
  font-size: 1.7rem;
  font-weight: 700;
  margin: 0 0 6px;
}
.legal-prose h2 {
  font-family: var(--font);
  font-size: 1.12rem;
  font-weight: 600;
  margin: 36px 0 10px;
}
.legal-prose p, .legal-prose li { margin: 0 0 14px; color: var(--text); }
.legal-prose ul { padding-left: 22px; }
.legal-prose a { color: var(--accent-hover); }
.legal-prose strong { font-weight: 600; }
.legal-updated {
  font-size: 0.88rem;
  color: var(--muted);
  margin-bottom: 28px;
}
.legal-prose table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.92rem;
  margin: 0 0 14px;
}
.legal-prose th, .legal-prose td {
  text-align: left;
  padding: 8px 10px;
  border: 1px solid var(--border);
  vertical-align: top;
}
.legal-prose th { font-family: var(--font); font-weight: 600; }
.site-footer {
  border-top: 1px solid var(--border);
  padding: 28px 24px 36px;
  text-align: center;
  font-family: var(--font);
  font-size: 0.85rem;
  color: var(--muted);
}
.site-footer nav {
  display: flex;
  flex-wrap: wrap;
  gap: 8px 22px;
  justify-content: center;
  margin-bottom: 12px;
}
.site-footer a {
  color: var(--muted);
  text-decoration: none;
}
.site-footer a:hover { color: var(--accent); }

/* ===== Login social en el modal de pago ===== */
.oauth-buttons {
  display: flex;
  flex-direction: column;
  gap: 10px;
  margin-bottom: 16px;
}
.btn-oauth {
  width: 100%;
  text-align: center;
}
.oauth-divider {
  text-align: center;
  color: var(--muted);
  font-size: 0.82rem;
  margin: 0 0 16px;
  position: relative;
}
