/* ==========================================================================
   Catastro+IA — Design tokens
   Concepto: expediente catastral / plano de arquitecto. Fondo tinta azul de
   plano técnico, retícula de coordenadas, acento cobre de sello notarial.
   ========================================================================== */

:root{
  /* color */
  --ink-900: #0F1B2D;
  --ink-800: #16263C;
  --ink-700: #1E3350;
  --blueprint-line: rgba(150, 185, 220, 0.16);
  --blueprint-line-strong: rgba(180, 205, 230, 0.34);
  --paper: #F4F0E4;
  --paper-dim: #E8E2D2;
  --ink-text: #16202E;
  --copper: #C08A3E;
  --copper-light: #E4B368;
  --copper-dim: rgba(192, 138, 62, 0.16);
  --sello-green: #4C7A63;

  /* type */
  --font-display: 'Fraunces', Georgia, serif;
  --font-mono: 'IBM Plex Mono', ui-monospace, monospace;
  --font-body: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;

  /* layout */
  --wrap: 1120px;
  --radius: 3px;
}

*{ box-sizing: border-box; }
html{ scroll-behavior: smooth; }

body{
  margin: 0;
  font-family: var(--font-body);
  background: var(--ink-900);
  color: var(--paper);
  line-height: 1.5;
  -webkit-font-smoothing: antialiased;
}

.wrap{
  max-width: var(--wrap);
  margin: 0 auto;
  padding: 0 28px;
}

a{ color: inherit; text-decoration: none; }

h1, h2, h3, h4{
  font-family: var(--font-display);
  font-weight: 600;
  margin: 0;
  color: var(--paper);
}

.eyebrow{
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--copper-light);
  margin: 0 0 10px;
}

/* subtle blueprint grid used as page texture behind dark sections */
.hero, .como-funciona{
  background-image:
    linear-gradient(var(--blueprint-line) 1px, transparent 1px),
    linear-gradient(90deg, var(--blueprint-line) 1px, transparent 1px);
  background-size: 56px 56px;
}

/* ==========================================================================
   Buttons
   ========================================================================== */

.btn{
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 13px 26px;
  border-radius: var(--radius);
  font-family: var(--font-body);
  font-weight: 600;
  font-size: 15px;
  cursor: pointer;
  border: 1px solid transparent;
  transition: transform 0.15s ease, background 0.2s ease, border-color 0.2s ease;
}
.btn:active{ transform: translateY(1px); }

.btn-primary{
  background: var(--copper);
  color: var(--ink-900);
}
.btn-primary:hover{ background: var(--copper-light); }

.btn-outline{
  background: transparent;
  border-color: var(--copper);
  color: var(--copper-light);
}
.btn-outline:hover{ background: var(--copper-dim); }

.btn-ghost{
  border-color: var(--blueprint-line-strong);
  color: var(--paper);
  padding: 10px 20px;
  font-size: 14px;
}
.btn-ghost:hover{ border-color: var(--copper); color: var(--copper-light); }

.btn-block{ width: 100%; }

.btn[disabled]{ opacity: 0.6; cursor: progress; }

/* ==========================================================================
   Header
   ========================================================================== */

.site-header{
  position: sticky;
  top: 0;
  z-index: 20;
  background: rgba(15, 27, 45, 0.9);
  backdrop-filter: blur(8px);
  border-bottom: 1px solid var(--blueprint-line-strong);
}

.header-inner{
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-top: 16px;
  padding-bottom: 16px;
}

.brand{
  display: flex;
  align-items: center;
  gap: 10px;
  font-family: var(--font-mono);
  font-size: 16px;
  letter-spacing: 0.02em;
  color: var(--paper);
}
.brand-mark{ color: var(--copper-light); display: flex; }
.brand-word em{ font-style: normal; color: var(--copper-light); }

.main-nav{
  display: flex;
  gap: 32px;
  font-size: 14px;
}
.main-nav a{ opacity: 0.8; transition: opacity 0.15s ease; }
.main-nav a:hover{ opacity: 1; color: var(--copper-light); }

@media (max-width: 720px){
  .main-nav{ display: none; }
}

/* ==========================================================================
   Hero
   ========================================================================== */

.hero{
  padding: 92px 0 80px;
  border-bottom: 1px solid var(--blueprint-line-strong);
}

.hero-inner{
  display: grid;
  grid-template-columns: 1.05fr 0.95fr;
  gap: 64px;
  align-items: center;
}

.display{
  font-size: clamp(34px, 4.6vw, 54px);
  line-height: 1.08;
  letter-spacing: -0.01em;
  margin-bottom: 20px;
}

.lede{
  font-size: 17px;
  color: rgba(244, 240, 228, 0.78);
  max-width: 46ch;
  margin: 0 0 32px;
}

.hero-facts{
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-direction: column;
  gap: 14px;
}
.hero-facts li{
  display: flex;
  align-items: baseline;
  gap: 14px;
  font-size: 14.5px;
  color: rgba(244, 240, 228, 0.85);
  border-top: 1px solid var(--blueprint-line);
  padding-top: 14px;
}
.fact-num{
  font-family: var(--font-mono);
  color: var(--copper-light);
  font-size: 13px;
}

/* --- blueprint floorplan illustration --- */

.hero-blueprint{
  position: relative;
  border: 1px solid var(--blueprint-line-strong);
  border-radius: var(--radius);
  background: var(--ink-800);
}

.plano-svg{ width: 100%; height: auto; display: block; }

.plano-grid line{
  stroke: var(--blueprint-line);
  stroke-width: 1;
}

.plano-outline{
  fill: none;
  stroke: var(--copper-light);
  stroke-width: 2;
  stroke-linejoin: round;
  stroke-dasharray: 1400;
  stroke-dashoffset: 1400;
  animation: draw-plano 2.4s ease forwards 0.3s;
}
.plano-wall{ stroke-width: 1.4; opacity: 0.85; }

@keyframes draw-plano{
  to{ stroke-dashoffset: 0; }
}

.plano-coord{
  font-family: var(--font-mono);
  font-size: 10px;
  fill: rgba(228, 179, 104, 0.55);
}

.sello{
  position: absolute;
  right: 24px;
  bottom: 24px;
  width: 112px;
  height: 112px;
  border-radius: 50%;
  border: 2px solid var(--copper);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  background: rgba(192, 138, 62, 0.08);
  text-align: center;
  transform: rotate(-8deg);
  opacity: 0;
  transition: opacity 0.4s ease, transform 0.4s ease;
}
.sello.is-active{ opacity: 1; transform: rotate(-8deg) scale(1); }
.sello-label{
  font-family: var(--font-mono);
  font-size: 9px;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--copper-light);
}
.sello-value{
  font-family: var(--font-display);
  font-size: 18px;
  font-weight: 700;
  color: var(--paper);
  margin-top: 2px;
}
.sello-sub{
  font-family: var(--font-mono);
  font-size: 9px;
  color: rgba(244, 240, 228, 0.6);
}

@media (max-width: 900px){
  .hero-inner{ grid-template-columns: 1fr; }
}

/* ==========================================================================
   Valorar — panel de documento (form + resultado)
   ========================================================================== */

.valorar{
  padding: 76px 0;
  background: var(--paper);
}

.panel-doc{
  max-width: 720px;
  margin: 0 auto;
  background: #FFFDF8;
  border: 1px solid var(--paper-dim);
  border-radius: var(--radius);
  box-shadow: 0 24px 60px -30px rgba(15, 27, 45, 0.45);
  padding: 44px;
  color: var(--ink-text);
}

.panel-doc-head .eyebrow{ color: var(--copper); }
.panel-doc-head h2{ color: var(--ink-text); font-size: 26px; margin-bottom: 28px; }

.form-doc{ display: flex; flex-direction: column; gap: 18px; }

.field-row{
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 18px;
}
@media (max-width: 560px){
  .field-row{ grid-template-columns: 1fr; }
}

.field{ display: flex; flex-direction: column; gap: 6px; }
.field label{
  font-size: 12.5px;
  font-weight: 600;
  color: #5B5342;
  letter-spacing: 0.01em;
}
.field label .opt{ font-weight: 400; color: #9A9077; }

.field input, .field select{
  border: 1px solid #DAD3BF;
  border-radius: var(--radius);
  padding: 11px 13px;
  font-size: 15px;
  font-family: var(--font-body);
  background: #fff;
  color: var(--ink-text);
}
.field input.mono{ font-family: var(--font-mono); font-size: 13.5px; letter-spacing: 0.02em; }
.field input:focus, .field select:focus{
  outline: 2px solid var(--copper);
  outline-offset: 1px;
  border-color: var(--copper);
}

.form-note{
  font-size: 12.5px;
  color: #8A8168;
  margin: 2px 0 0;
}

/* --- resultado --- */

.resultado{
  margin-top: 40px;
  padding-top: 32px;
  border-top: 1px dashed #DAD3BF;
}
.resultado-head h3{ color: var(--ink-text); font-size: 21px; margin-top: 4px; }
.resultado-head .eyebrow{ color: var(--copper); }

.resultado-rango{ margin: 24px 0 30px; }
.rango-bar{
  position: relative;
  height: 8px;
  border-radius: 6px;
  background: linear-gradient(90deg, #E7DFC8, var(--copper-light), #E7DFC8);
}
.rango-marker{
  position: absolute;
  top: -5px;
  width: 3px;
  height: 18px;
  background: var(--ink-text);
  left: 50%;
}
.rango-labels{
  display: flex;
  justify-content: space-between;
  margin-top: 10px;
  font-family: var(--font-mono);
  font-size: 13px;
  color: #6B6350;
}
.rango-media{
  font-weight: 700;
  color: var(--ink-text);
  font-size: 16px;
}

.resultado-grid{
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 32px;
}
@media (max-width: 560px){
  .resultado-grid{ grid-template-columns: 1fr; }
}

.resultado-grid h4{
  font-size: 13px;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: #8A8168;
  margin-bottom: 12px;
  font-family: var(--font-mono);
  font-weight: 500;
}

.mono-list{
  font-family: var(--font-mono);
  font-size: 13px;
  margin: 0;
  display: flex;
  flex-direction: column;
  gap: 8px;
}
.mono-list div{ display: flex; justify-content: space-between; gap: 12px; }
.mono-list dt{ color: #8A8168; }
.mono-list dd{ margin: 0; color: var(--ink-text); text-align: right; }

.resultado-factores ul{
  margin: 0;
  padding-left: 18px;
  font-size: 14px;
  color: #443F31;
  display: flex;
  flex-direction: column;
  gap: 8px;
}
.confianza{
  margin-top: 16px;
  font-size: 13px;
  color: #6B6350;
}
.confianza strong{ color: var(--sello-green); }

.disclaimer{
  margin-top: 28px;
  font-size: 12px;
  line-height: 1.6;
  color: #9A9077;
  border-left: 2px solid var(--copper);
  padding-left: 12px;
}

.resultado-error{
  margin-top: 28px;
  padding: 16px 18px;
  border: 1px solid #D98E73;
  background: #FBEEE9;
  color: #8A3A22;
  border-radius: var(--radius);
  font-size: 14px;
}

/* ==========================================================================
   Como funciona
   ========================================================================== */

.como-funciona{ padding: 88px 0; }
.section-title{
  font-size: clamp(26px, 3vw, 34px);
  margin: 6px 0 44px;
  max-width: 20ch;
}

.pasos{
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1px;
  background: var(--blueprint-line-strong);
  border: 1px solid var(--blueprint-line-strong);
}
.pasos li{
  background: var(--ink-900);
  padding: 32px 28px;
}
.paso-num{
  display: block;
  font-family: var(--font-mono);
  color: var(--copper-light);
  font-size: 13px;
  margin-bottom: 16px;
}
.pasos h3{ font-size: 19px; margin-bottom: 10px; }
.pasos p{
  font-size: 14.5px;
  color: rgba(244, 240, 228, 0.72);
  margin: 0;
}

@media (max-width: 800px){
  .pasos{ grid-template-columns: 1fr; }
}

/* ==========================================================================
   Precios
   ========================================================================== */

.precios{ padding: 88px 0 100px; background: var(--ink-800); }
.precios .section-title{ color: var(--paper); }

.tarifas{
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 24px;
  max-width: 760px;
}
@media (max-width: 700px){
  .tarifas{ grid-template-columns: 1fr; }
}

.tarifa{
  position: relative;
  border: 1px solid var(--blueprint-line-strong);
  border-radius: var(--radius);
  padding: 32px 28px;
}
.tarifa h3{ font-size: 18px; color: var(--paper); margin-bottom: 12px; }
.tarifa .precio{
  font-family: var(--font-display);
  font-size: 40px;
  color: var(--paper);
  margin: 0 0 20px;
}
.tarifa .num{ font-weight: 700; }
.tarifa .periodo{ font-size: 15px; color: rgba(244,240,228,0.6); font-family: var(--font-body); }

.tarifa ul{
  list-style: none;
  padding: 0;
  margin: 0 0 26px;
  display: flex;
  flex-direction: column;
  gap: 10px;
  font-size: 14px;
  color: rgba(244, 240, 228, 0.78);
}
.tarifa ul li::before{ content: "— "; color: var(--copper-light); }

.tarifa-destacada{
  background: rgba(192, 138, 62, 0.07);
  border-color: var(--copper);
}
.tarifa-badge{
  position: absolute;
  top: -12px;
  left: 28px;
  background: var(--copper);
  color: var(--ink-900);
  font-family: var(--font-mono);
  font-size: 11px;
  padding: 4px 10px;
  border-radius: 20px;
  font-weight: 600;
}

/* ==========================================================================
   Footer
   ========================================================================== */

.site-footer{
  border-top: 1px solid var(--blueprint-line-strong);
  padding: 26px 0;
}
.footer-inner{
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 20px;
  font-size: 12.5px;
  color: rgba(244, 240, 228, 0.55);
}
.footer-nav{ display: flex; gap: 20px; }
.footer-nav a:hover{ color: var(--copper-light); }

@media (max-width: 600px){
  .footer-inner{ flex-direction: column; text-align: center; }
}

/* ==========================================================================
   Accessibility
   ========================================================================== */

:focus-visible{
  outline: 2px solid var(--copper);
  outline-offset: 2px;
}

@media (prefers-reduced-motion: reduce){
  .plano-outline{ animation: none; stroke-dashoffset: 0; }
  html{ scroll-behavior: auto; }
}