/* ==========================================================================
   Eidon Smart — design tokens
   Paleta pensada como un canvas de automatización, no como una agencia de IA
   genérica: fondo frío tipo "blueprint", tinta grafito-navy, un acento
   naranja-quemado (estado "trigger") y un verde-teal para líneas de flujo.
   ========================================================================== */

:root {
  --paper: #eef1f4;
  --surface: #ffffff;
  --ink: #14181f;
  --ink-soft: #4a5568;
  --ink-faint: #7b8794;
  --line: #c7ccd1;
  --line-soft: #dde1e5;
  --accent: #e8491c;
  --accent-ink: #ffffff;
  --flow: #1f7a5c;
  --flow-soft: #e4f2ec;
  --danger: #b23a2f;

  --font-display: "Space Grotesk", "Arial Narrow", sans-serif;
  --font-mono: "JetBrains Mono", ui-monospace, "SFMono-Regular", monospace;
  --font-body: "Public Sans", -apple-system, BlinkMacSystemFont, sans-serif;

  --radius-sm: 4px;
  --radius-md: 8px;
  --container: 1100px;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }
  *,
  *::before,
  *::after {
    animation-duration: 0.001ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.001ms !important;
    scroll-behavior: auto !important;
  }
}

body {
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  font-family: var(--font-body);
  font-size: 16px;
  line-height: 1.55;
  -webkit-font-smoothing: antialiased;
}

h1,
h2,
h3 {
  font-family: var(--font-display);
  font-weight: 600;
  line-height: 1.08;
  margin: 0 0 0.5em;
  letter-spacing: -0.01em;
}

h1 {
  font-size: clamp(2.1rem, 5vw, 3.6rem);
}

h2 {
  font-size: clamp(1.6rem, 3.4vw, 2.4rem);
}

h3 {
  font-size: 1.15rem;
  font-weight: 600;
}

p {
  margin: 0 0 1em;
  color: var(--ink-soft);
}

a {
  color: inherit;
}

button {
  font-family: inherit;
}

:focus-visible {
  outline: 3px solid var(--accent);
  outline-offset: 2px;
}

.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 0.5em;
  font-family: var(--font-mono);
  font-size: 0.78rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--flow);
  margin-bottom: 1rem;
}

.container {
  max-width: var(--container);
  margin: 0 auto;
  padding: 0 1.5rem;
}

/* ---------------------------------- header ---------------------------- */

.site-header {
  position: sticky;
  top: 0;
  z-index: 40;
  background: rgba(238, 241, 244, 0.9);
  backdrop-filter: blur(8px);
  border-bottom: 1px solid var(--line-soft);
}

.site-header .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 64px;
}

.logo {
  font-family: var(--font-mono);
  font-weight: 500;
  font-size: 0.95rem;
  letter-spacing: 0.02em;
  text-decoration: none;
  color: var(--ink);
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.logo .dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--accent);
}

.nav-links {
  display: none;
  gap: 1.75rem;
  font-size: 0.92rem;
}

.nav-links a {
  text-decoration: none;
  color: var(--ink-soft);
}

.nav-links a:hover {
  color: var(--ink);
}

@media (min-width: 860px) {
  .nav-links {
    display: flex;
    align-items: center;
  }
}

.btn-primary,
.btn-ghost {
  font-family: var(--font-body);
  font-weight: 600;
  font-size: 0.92rem;
  text-decoration: none;
  padding: 0.65rem 1.15rem;
  border-radius: var(--radius-sm);
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  border: 1px solid transparent;
  cursor: pointer;
}

.btn-primary {
  background: var(--accent);
  color: var(--accent-ink);
}

.btn-primary:hover {
  background: #cf3d15;
}

.btn-ghost {
  background: transparent;
  border-color: var(--line);
  color: var(--ink);
}

.btn-ghost:hover {
  border-color: var(--ink);
}

/* ------------------------------ pipeline rail --------------------------- */
/* Cada sección es un "nodo" del pipeline. El borde izquierdo de cada nodo,
   apilado sin separación, arma la línea continua que recorre toda la
   página — la estructura del sitio imita el canvas de un workflow real. */

.pipeline {
  max-width: var(--container);
  margin: 0 auto;
  padding: 0 1.5rem;
}

.node {
  position: relative;
  border-left: 2px solid var(--line);
  padding: 3.5rem 0 3.5rem 2.25rem;
}

.node:last-of-type {
  border-left-color: var(--line-soft);
}

.node-dot {
  position: absolute;
  left: -7px;
  top: 3.6rem;
  width: 12px;
  height: 12px;
  border-radius: 50%;
  background: var(--surface);
  border: 2px solid var(--flow);
}

.node-dot.is-live {
  border-color: var(--accent);
}

.node-dot.is-live::after {
  content: "";
  position: absolute;
  inset: -6px;
  border-radius: 50%;
  border: 1px solid var(--accent);
  animation: pulse-ring 2.4s ease-out infinite;
}

@keyframes pulse-ring {
  0% {
    transform: scale(0.6);
    opacity: 0.9;
  }
  100% {
    transform: scale(1.8);
    opacity: 0;
  }
}

.node-content {
  max-width: 780px;
}

.node-content.wide {
  max-width: 100%;
}

.lede {
  font-size: 1.1rem;
  max-width: 620px;
}

.cta-row {
  display: flex;
  flex-wrap: wrap;
  gap: 0.85rem;
  margin: 1.5rem 0 2.5rem;
}

/* ------------------------------- hero flow -------------------------------- */

.flow-diagram-wrap {
  background: var(--surface);
  border: 1px solid var(--line-soft);
  border-radius: var(--radius-md);
  padding: 1.5rem;
  max-width: 760px;
}

.flow-diagram-wrap svg {
  width: 100%;
  height: auto;
  display: block;
}

.flow-caption {
  font-family: var(--font-mono);
  font-size: 0.78rem;
  color: var(--ink-faint);
  margin: 0.9rem 0 0;
}

.flow-path {
  fill: none;
  stroke: var(--line);
  stroke-width: 2;
}

.flow-path.animated {
  stroke: var(--flow);
  stroke-dasharray: 6 6;
  animation: dash-flow 1.6s linear infinite;
}

@keyframes dash-flow {
  to {
    stroke-dashoffset: -24;
  }
}

.flow-node-rect {
  fill: var(--surface);
  stroke: var(--line);
  stroke-width: 1.5;
}

.flow-node-rect.accent {
  stroke: var(--accent);
}

.flow-label {
  font-family: var(--font-mono);
  font-size: 11px;
  fill: var(--ink);
}

.flow-label.soft {
  fill: var(--ink-faint);
}

/* ------------------------------- cards ------------------------------- */

.card-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1.25rem;
  margin-top: 2rem;
}

@media (min-width: 720px) {
  .card-grid {
    grid-template-columns: repeat(3, 1fr);
  }
  .card-grid.cols-2 {
    grid-template-columns: repeat(2, 1fr);
  }
}

.stats-row {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1.5rem;
  margin-top: 2rem;
}

@media (min-width: 720px) {
  .stats-row {
    grid-template-columns: repeat(4, 1fr);
  }
}

.stat {
  display: flex;
  flex-direction: column;
  gap: 0.25rem;
}

.stat-num {
  font-family: var(--font-display);
  font-size: 2rem;
  font-weight: 600;
  color: var(--accent);
}

.stat-label {
  font-size: 0.85rem;
  color: var(--ink-soft);
}

.card {
  background: var(--surface);
  border: 1px solid var(--line-soft);
  border-radius: var(--radius-md);
  padding: 1.5rem;
}

.card h3 {
  margin-bottom: 0.6rem;
}

.card p {
  font-size: 0.95rem;
}

.card ul {
  margin: 1rem 0 0;
  padding: 0;
  list-style: none;
  font-size: 0.88rem;
  color: var(--ink-soft);
  font-family: var(--font-mono);
}

.card li {
  padding: 0.3rem 0;
  border-top: 1px dashed var(--line-soft);
}

.card li:first-child {
  border-top: none;
}

/* ------------------------------- proceso ------------------------------ */

.steps {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1.5rem;
  margin-top: 2rem;
}

@media (min-width: 720px) {
  .steps {
    grid-template-columns: repeat(3, 1fr);
  }
}

.step .step-tag {
  font-family: var(--font-mono);
  font-size: 0.78rem;
  color: var(--flow);
  display: block;
  margin-bottom: 0.5rem;
}

/* ---------------------------- calculadora ------------------------------ */

.calc-box {
  background: var(--surface);
  border: 1px solid var(--line-soft);
  border-radius: var(--radius-md);
  padding: 2rem;
  margin-top: 2rem;
  display: grid;
  gap: 2rem;
}

@media (min-width: 780px) {
  .calc-box {
    grid-template-columns: 1fr 1fr;
  }
}

.calc-field {
  margin-bottom: 1.25rem;
}

.calc-field label {
  display: flex;
  justify-content: space-between;
  font-size: 0.88rem;
  font-family: var(--font-mono);
  color: var(--ink-soft);
  margin-bottom: 0.4rem;
}

.calc-field output {
  color: var(--ink);
  font-weight: 600;
}

.calc-field input[type="range"] {
  width: 100%;
  accent-color: var(--accent);
}

.currency-toggle {
  display: flex;
  gap: 0.5rem;
  margin-bottom: 1.5rem;
}

.currency-toggle button {
  flex: 1;
  padding: 0.5rem;
  border-radius: var(--radius-sm);
  border: 1px solid var(--line);
  background: var(--surface);
  font-size: 0.85rem;
  cursor: pointer;
}

.currency-toggle button[aria-pressed="true"] {
  background: var(--ink);
  color: var(--surface);
  border-color: var(--ink);
}

.calc-result {
  background: var(--paper);
  border-radius: var(--radius-md);
  padding: 1.75rem;
  display: flex;
  flex-direction: column;
  justify-content: center;
}

.calc-result .result-figure {
  font-family: var(--font-display);
  font-size: clamp(2rem, 5vw, 2.8rem);
  font-weight: 600;
  color: var(--accent);
  margin: 0.25rem 0;
}

.calc-result .result-sub {
  font-size: 0.88rem;
  color: var(--ink-soft);
}

.calc-note {
  font-size: 0.82rem;
  color: var(--ink-faint);
  margin-top: 1rem;
}

/* ------------------------------ portafolio ----------------------------- */

.case-card {
  background: var(--surface);
  border: 1px solid var(--line-soft);
  border-radius: var(--radius-md);
  padding: 1.75rem;
  margin-top: 1.25rem;
}

.case-card.is-placeholder {
  border-style: dashed;
  color: var(--ink-faint);
}

.case-card .case-tag {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--flow);
  text-transform: uppercase;
}

.case-card.is-placeholder .case-tag {
  color: var(--ink-faint);
}

.case-stack {
  font-family: var(--font-mono);
  font-size: 0.8rem;
  color: var(--ink-faint);
  margin-top: 0.75rem;
}

/* --------------------------------- faq --------------------------------- */

.faq-item {
  border-top: 1px solid var(--line-soft);
}

.faq-item:last-child {
  border-bottom: 1px solid var(--line-soft);
}

.faq-q {
  width: 100%;
  text-align: left;
  background: none;
  border: none;
  padding: 1.25rem 0;
  font-family: var(--font-display);
  font-size: 1.02rem;
  font-weight: 600;
  color: var(--ink);
  display: flex;
  justify-content: space-between;
  align-items: center;
  cursor: pointer;
}

.faq-q .plus {
  font-family: var(--font-mono);
  color: var(--accent);
  font-size: 1.2rem;
  flex: none;
  margin-left: 1rem;
}

.faq-a {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.25s ease;
}

.faq-item.is-open .faq-a {
  max-height: 320px;
}

.faq-a p {
  padding-bottom: 1.25rem;
  font-size: 0.95rem;
}

/* -------------------------------- contacto ------------------------------ */

.contact-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 2rem;
  margin-top: 2rem;
}

@media (min-width: 780px) {
  .contact-grid {
    grid-template-columns: 1fr 1fr;
  }
}

.field {
  margin-bottom: 1.1rem;
}

.field label {
  display: block;
  font-family: var(--font-mono);
  font-size: 0.8rem;
  color: var(--ink-soft);
  margin-bottom: 0.35rem;
}

.field input,
.field textarea {
  width: 100%;
  padding: 0.7rem 0.85rem;
  border: 1px solid var(--line);
  border-radius: var(--radius-sm);
  font-family: var(--font-body);
  font-size: 0.95rem;
  background: var(--surface);
  color: var(--ink);
}

.field textarea {
  min-height: 110px;
  resize: vertical;
}

.direct-contact {
  background: var(--surface);
  border: 1px solid var(--line-soft);
  border-radius: var(--radius-md);
  padding: 1.75rem;
}

.direct-contact .email-link {
  font-family: var(--font-mono);
  font-size: 1rem;
  color: var(--accent);
  text-decoration: none;
  word-break: break-all;
}

.social-row {
  display: flex;
  gap: 1rem;
  margin-top: 1.5rem;
}

.social-row a {
  font-size: 0.85rem;
  text-decoration: none;
  color: var(--ink-soft);
  border: 1px solid var(--line);
  padding: 0.4rem 0.8rem;
  border-radius: var(--radius-sm);
}

/* --------------------------------- footer -------------------------------- */

footer {
  border-top: 1px solid var(--line-soft);
  margin-top: 2rem;
  padding: 3rem 0;
}

footer .container {
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
}

@media (min-width: 720px) {
  footer .container {
    flex-direction: row;
    justify-content: space-between;
  }
}

footer .foot-brand {
  font-family: var(--font-mono);
  font-size: 0.85rem;
  color: var(--ink-faint);
}

footer nav {
  display: flex;
  gap: 1.25rem;
  flex-wrap: wrap;
  font-size: 0.88rem;
}

footer nav a {
  text-decoration: none;
  color: var(--ink-soft);
}

/* ----------------------------- float cta -------------------------------- */

.float-cta {
  position: fixed;
  right: 1.25rem;
  bottom: 1.25rem;
  z-index: 50;
  background: var(--ink);
  color: var(--surface);
  text-decoration: none;
  padding: 0.75rem 1.1rem;
  border-radius: 999px;
  font-size: 0.85rem;
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  box-shadow: 0 6px 18px rgba(20, 24, 31, 0.18);
}

.float-cta .dot {
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--flow);
}

/* ---------------------------- utilidades varias -------------------------- */

.page-header {
  padding: 4.5rem 0 2rem;
}

.page-header .eyebrow {
  margin-bottom: 1rem;
}