*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

:root {
  --paper:        #f3ecdc;
  --paper-soft:   #ece4d0;
  --paper-deep:   #1b1612;
  --ink:          #1c1813;
  --ink-soft:     #4a4239;
  --ink-mid:      #7a6f5e;
  --ink-faint:    #a89e8c;
  --rule:         rgba(28,24,19,0.14);
  --rule-strong:  rgba(28,24,19,0.32);
  --accent:       #8c3a23;
  --accent-soft:  #b25a3f;
  --paper-on-dark: rgba(243,236,220,0.92);
  --mid-on-dark:   rgba(243,236,220,0.52);
  --faint-on-dark: rgba(243,236,220,0.28);
  --rule-on-dark:  rgba(243,236,220,0.12);

  --radius: 4px;
  --radius-lg: 8px;

  --serif: 'Newsreader', 'Iowan Old Style', 'Charter', Georgia, serif;
  --mono:  'JetBrains Mono', ui-monospace, 'SFMono-Regular', Menlo, monospace;
}

html { scroll-behavior: smooth; }
body {
  font-family: var(--serif);
  font-feature-settings: 'liga' 1, 'kern' 1, 'onum' 1;
  background: var(--paper);
  color: var(--ink);
  font-size: 18px;
  line-height: 1.55;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

.mono {
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  font-weight: 500;
}
.rule-h { display: block; width: 100%; height: 1px; background: var(--rule); }
.rule-h.strong { background: var(--rule-strong); }

/* ---------- NAV ---------- */
nav {
  position: fixed; top: 0; left: 0; right: 0; z-index: 100;
  height: 64px; display: flex; align-items: center; justify-content: space-between;
  padding: 0 2.5rem;
  background: rgba(243,236,220,0.88);
  backdrop-filter: blur(14px) saturate(140%);
  -webkit-backdrop-filter: blur(14px) saturate(140%);
  border-bottom: 1px solid var(--rule);
}
.nav-logo {
  display: inline-flex; align-items: center; text-decoration: none;
}
.nav-logo-img { height: 50px; width: auto; display: block; }
.nav-links { display: flex; align-items: center; gap: 2.25rem; list-style: none; }
.nav-links a {
  font-family: var(--mono); font-size: 11px; letter-spacing: 0.12em;
  text-transform: uppercase; color: var(--ink-soft); text-decoration: none;
  transition: color 0.15s;
}
.nav-links a:hover { color: var(--accent); }
.nav-cta {
  color: var(--paper) !important;
  background: var(--ink);
  padding: 9px 16px 8px; border-radius: 999px;
  letter-spacing: 0.08em !important;
}
.nav-cta:hover { background: var(--accent) !important; color: var(--paper) !important; }

/* Hamburger */
.nav-hamburger {
  display: none;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 8px;
  width: 36px;
  height: 36px;
}
.nav-hamburger span {
  display: block;
  width: 22px;
  height: 2px;
  background: var(--ink);
  border-radius: 2px;
  transition: transform 0.22s ease, opacity 0.22s ease;
}
.nav-hamburger.open span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.nav-hamburger.open span:nth-child(2) { opacity: 0; transform: scaleX(0); }
.nav-hamburger.open span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

/* ---------- HERO ---------- */
.hero {
  max-width: 1240px; margin: 0 auto;
  padding: 120px 2.5rem 56px;
  display: grid; grid-template-columns: 1.05fr 0.95fr; gap: 4rem; align-items: center;
  position: relative;
}
.hero::before {
  content:''; position:absolute; inset:0; pointer-events:none;
  background-image: repeating-linear-gradient(0deg, transparent 0 27px, rgba(28,24,19,0.025) 27px 28px);
  mix-blend-mode: multiply; opacity: 0.6;
}
.hero-copy, .hero-visual { position: relative; }
.hero-copy { min-width: 0; }
.hero-meta {
  display:flex; align-items:center; gap: 12px;
  color: var(--ink-mid); margin-bottom: 1.75rem;
}
.hero-meta .dot { width: 6px; height: 6px; border-radius: 50%; background: var(--accent); animation: blink 2.4s ease-in-out infinite; }
@keyframes blink { 0%,100%{opacity:1} 50%{opacity:0.25} }

h1 {
  font-family: var(--serif); font-weight: 400;
  font-size: clamp(2.4rem, 4.8vw, 4.6rem);
  line-height: 1.0;
  letter-spacing: -0.028em;
  color: var(--ink);
  margin-bottom: 1.5rem;
  max-width: 16ch;
  text-wrap: balance;
}
h1 em { font-style: italic; font-weight: 400; color: var(--accent); }
h1 .amp { font-style: italic; color: var(--ink-mid); font-weight: 300; }
.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; }

.hero-sub {
  font-size: 1.05rem; color: var(--ink-soft);
  max-width: 50ch; margin-bottom: 2.25rem;
  font-weight: 400; line-height: 1.55;
}
.hero-sub em { font-style: italic; color: var(--accent); font-weight: 500; }

.hero-ctas { display: flex; gap: 0.6rem; flex-wrap: wrap; align-items: center; }
.btn-ink {
  background: var(--ink); color: var(--paper);
  padding: 14px 22px 13px; border-radius: 999px;
  font-family: var(--mono); font-size: 11px; letter-spacing: 0.12em; text-transform: uppercase;
  font-weight: 500;
  text-decoration: none;
  display: inline-flex; align-items: center; gap: 10px;
  transition: background 0.18s, transform 0.18s;
  border: 1px solid var(--ink);
}
.btn-ink:hover { background: var(--accent); border-color: var(--accent); }
.btn-ink .arr { transition: transform 0.2s; }
.btn-ink:hover .arr { transform: translateX(3px); }
.btn-ghost {
  background: transparent; color: var(--ink);
  padding: 14px 22px 13px; border-radius: 999px;
  font-family: var(--mono); font-size: 11px; letter-spacing: 0.12em; text-transform: uppercase;
  font-weight: 500;
  text-decoration: none;
  border: 1px solid var(--rule-strong);
  transition: border-color 0.15s, color 0.15s;
}
.btn-ghost:hover { border-color: var(--accent); color: var(--accent); }

.hero-figure { margin-bottom: 0; }
.hero-plate {
  border: 1px solid var(--rule-strong);
  background: #fffaf0;
  box-shadow: 0 1px 0 rgba(28,24,19,0.04), 0 18px 40px -22px rgba(28,24,19,0.25);
  border-radius: 2px;
  overflow: hidden;
  position: relative;
}
.hero-plate svg { width: 100%; height: auto; display: block; }
.hero-caption {
  display:flex; justify-content: space-between; align-items: baseline;
  color: var(--ink-mid); margin-top: 14px;
  padding-top: 12px; border-top: 1px solid var(--rule);
}
.hero-caption .fig { color: var(--accent); }
.hero-caption .desc { font-style: italic; font-family: var(--serif); font-size: 13px; text-transform: none; letter-spacing: 0; color: var(--ink-mid); font-weight: 400; }

@media (max-width: 960px) {
  .hero { grid-template-columns: 1fr; gap: 3rem; padding-top: 110px; }
  .hero-figure { order: 2; }
}

/* ---------- MASTHEAD STRIP ---------- */
.masthead {
  border-top: 1px solid var(--rule); border-bottom: 1px solid var(--rule);
  background: var(--paper-soft);
}
.masthead-inner {
  max-width: 1240px; margin: 0 auto;
  padding: 18px 2.5rem;
  display: grid; grid-template-columns: repeat(4, 1fr); gap: 2rem;
  color: var(--ink-mid);
}
.masthead-cell { display: flex; align-items: baseline; gap: 10px; }
.masthead-cell .k { color: var(--ink-faint); }
.masthead-cell .v {
  font-family: var(--serif); font-style: italic; font-size: 15px;
  color: var(--ink-soft); font-weight: 400; letter-spacing: 0;
}
@media (max-width: 760px) { .masthead-inner { grid-template-columns: repeat(2,1fr); gap: 14px 2rem; } }

/* ---------- SECTIONS ---------- */
.section {
  max-width: 1240px; margin: 0 auto;
  padding: 110px 2.5rem;
  position: relative;
}
.section-header {
  display: grid; grid-template-columns: 200px 1fr; gap: 3rem;
  align-items: baseline;
  margin-bottom: 4rem;
  padding-bottom: 1.5rem;
  border-bottom: 1px solid var(--rule);
}
.section-header .left { display:flex; flex-direction: column; gap: 8px; color: var(--ink-mid); }
.section-header .left .num { font-family: var(--serif); font-style: italic; font-size: 14px; color: var(--accent); }
.section-header .right { min-width: 0; }
h2 {
  font-family: var(--serif); font-weight: 400;
  font-size: clamp(2rem, 4.4vw, 3.4rem);
  line-height: 1.02;
  letter-spacing: -0.025em;
  color: var(--ink);
  margin-bottom: 1rem;
  text-wrap: balance;
}
h2 em { font-style: italic; font-weight: 400; color: var(--accent); }
.section-sub {
  font-size: 1.125rem; color: var(--ink-soft);
  max-width: 58ch; line-height: 1.55;
  font-weight: 400;
}
@media (max-width: 800px) {
  .section-header { grid-template-columns: 1fr; gap: 1.5rem; }
}

/* ---------- AUDIENCES ---------- */
.audience-grid {
  display: grid; grid-template-columns: repeat(3,1fr);
  border-top: 1px solid var(--ink);
  border-bottom: 1px solid var(--ink);
}
.aud-card {
  padding: 2.5rem 2rem;
  border-right: 1px solid var(--rule);
  display: flex; flex-direction: column; gap: 1.25rem;
  transition: background 0.2s;
}
.aud-card:last-child { border-right: none; }
.aud-card:hover { background: rgba(28,24,19,0.025); }
.aud-top { display:flex; justify-content: space-between; align-items: baseline; color: var(--ink-mid); }
.aud-top .roman { font-family: var(--serif); font-style: italic; font-size: 28px; color: var(--accent); font-weight: 400; line-height: 1; }
.aud-title {
  font-family: var(--serif); font-weight: 400;
  font-size: 1.85rem; color: var(--ink);
  letter-spacing: -0.02em; line-height: 1.05;
}
.aud-title em { font-style: italic; color: var(--accent); }
.aud-desc { font-size: 1rem; color: var(--ink-soft); line-height: 1.6; flex-grow: 1; }
.aud-tag {
  color: var(--ink-mid);
  padding-top: 1rem; border-top: 1px solid var(--rule);
  font-family: var(--mono); font-size: 10px; letter-spacing: 0.12em;
  text-transform: uppercase;
}
@media (max-width: 800px) {
  .audience-grid { grid-template-columns: 1fr; }
  .aud-card { border-right: none; border-bottom: 1px solid var(--rule); }
  .aud-card:last-child { border-bottom: none; }
}

/* ---------- SOLUTIONS (dark band) ---------- */
.solutions-bg {
  background: var(--paper-deep);
  color: var(--paper);
  position: relative;
}
.solutions-bg::before {
  content:''; position:absolute; inset:0;
  background-image: repeating-linear-gradient(0deg, transparent 0 32px, rgba(243,236,220,0.025) 32px 33px);
  pointer-events:none;
}
.solutions-inner {
  max-width: 1240px; margin: 0 auto;
  padding: 110px 2.5rem;
  position: relative;
}
.solutions-bg .section-header { border-bottom-color: var(--rule-on-dark); }
.solutions-bg h2 { color: var(--paper); }
.solutions-bg h2 em { color: var(--accent-soft); }
.solutions-bg .section-header .left { color: var(--mid-on-dark); }
.solutions-bg .section-header .left .num { color: var(--accent-soft); }
.solutions-bg .section-sub { color: var(--paper-on-dark); }

.sol-list { border-top: 1px solid var(--rule-on-dark); }
.sol-row {
  display: grid; grid-template-columns: 80px 1fr 1.4fr 220px;
  gap: 2.5rem;
  padding: 2.5rem 0;
  border-bottom: 1px solid var(--rule-on-dark);
  align-items: start;
  transition: background 0.2s;
}
.sol-row:hover { background: rgba(243,236,220,0.025); }
.sol-num {
  font-family: var(--serif); font-style: italic;
  font-size: 2.4rem; color: var(--accent-soft); font-weight: 400;
  line-height: 1;
}
.sol-title-block { display:flex; flex-direction: column; gap: 0.6rem; }
.sol-title {
  font-family: var(--serif); font-weight: 400;
  font-size: 1.6rem; color: var(--paper);
  letter-spacing: -0.02em; line-height: 1.05;
}
.sol-title em { font-style: italic; color: var(--accent-soft); }
.sol-badge {
  align-self: flex-start;
  display: inline-flex; align-items: center; gap: 7px;
  font-family: var(--mono); font-size: 10px; letter-spacing: 0.14em; text-transform: uppercase;
  color: var(--paper-on-dark); padding: 4px 10px;
  border: 1px solid var(--rule-on-dark); border-radius: 999px;
}
.badge-live .b-dot { width: 6px; height: 6px; border-radius: 50%; background: #ffd07a; animation: blink 2s infinite; }
.badge-dev .b-dot { width: 6px; height: 6px; border-radius: 50%; background: var(--faint-on-dark); }
.sol-desc { font-size: 1.02rem; color: var(--paper-on-dark); line-height: 1.6; }
.sol-fact {
  padding-left: 1rem; border-left: 2px solid var(--accent);
  font-family: var(--serif); font-style: italic;
  font-size: 0.95rem; color: var(--paper-on-dark);
  line-height: 1.5;
}
@media (max-width: 960px) {
  .sol-row { grid-template-columns: 1fr; gap: 1.25rem; padding: 2rem 0; }
  .sol-num { font-size: 2rem; }
}

/* ---------- CÓMO LO HACEMOS ---------- */
.ia-bg {
  background: var(--paper-soft);
  border-top: 1px solid var(--rule);
  border-bottom: 1px solid var(--rule);
  position: relative;
}
.ia-inner {
  max-width: 1240px; margin: 0 auto;
  padding: 110px 2.5rem;
  display: grid; grid-template-columns: 1fr 1fr; gap: 5rem; align-items: start;
}
.ia-left h2 { margin-bottom: 1rem; }
.ia-left > p {
  font-size: 1.05rem; color: var(--ink-soft); line-height: 1.6;
  max-width: 44ch; margin-bottom: 2.5rem;
}
.ia-pillars {
  display: flex; flex-direction: column;
  border-top: 1px solid var(--rule-strong);
}
.ia-pillar {
  display: grid; grid-template-columns: 42px 1fr; gap: 1.25rem;
  align-items: baseline;
  padding: 1.5rem 0;
  border-bottom: 1px solid var(--rule);
}
.ia-pill-mk {
  font-family: var(--mono); font-size: 11px; color: var(--accent);
  letter-spacing: 0.06em; padding-top: 4px;
}
.ia-pill-title {
  font-family: var(--serif); font-size: 1.2rem; font-weight: 500;
  color: var(--ink); margin-bottom: 0.35rem; letter-spacing: -0.01em;
}
.ia-pill-desc { font-size: 0.98rem; color: var(--ink-soft); line-height: 1.55; }

.agent-trace {
  background: var(--paper-deep);
  color: var(--paper);
  border-radius: 4px;
  overflow: hidden;
  border: 1px solid rgba(28,24,19,0.6);
  box-shadow: 0 1px 0 rgba(28,24,19,0.05), 0 28px 60px -32px rgba(28,24,19,0.4);
}
.agent-bar {
  padding: 14px 18px;
  border-bottom: 1px solid var(--rule-on-dark);
  display:flex; justify-content: space-between; align-items: baseline;
  color: var(--mid-on-dark);
}
.agent-bar .ttl { font-family: var(--serif); font-style: italic; font-size: 14px; color: var(--paper-on-dark); }
.agent-body { padding: 1.75rem; }
.a-step {
  display: grid; grid-template-columns: 56px 1fr auto;
  gap: 1.25rem; align-items: baseline;
  padding: 1.1rem 0;
  border-bottom: 1px solid var(--rule-on-dark);
  position: relative;
}
.a-step:last-child { border-bottom: none; }
.a-mk {
  font-family: var(--serif); font-style: italic;
  color: var(--accent-soft); font-size: 1.4rem;
  line-height: 1;
}
.a-step-title {
  font-family: var(--serif); font-size: 1.1rem; color: var(--paper);
  margin-bottom: 0.25rem; letter-spacing: -0.01em;
}
.a-step-sub { color: var(--mid-on-dark); font-size: 0.9rem; line-height: 1.5; }
.a-step-status {
  font-family: var(--mono); font-size: 9.5px; letter-spacing: 0.16em; text-transform: uppercase;
  color: #ffd07a; opacity: 0.85;
}
.a-step.idle .a-mk { color: var(--faint-on-dark); }
.a-step.idle .a-step-status { color: var(--faint-on-dark); }
.a-step.idle .a-step-title { color: var(--mid-on-dark); }

@media (max-width: 900px) {
  .ia-inner { grid-template-columns: 1fr; gap: 3rem; }
}

/* ---------- CÓMO FUNCIONA ---------- */
.como-flow {
  margin: 2rem 0 3rem;
  border: 1px solid var(--rule-strong);
  background: #fffaf0;
  border-radius: 2px;
  padding: 1.25rem;
  overflow: hidden;
}
.como-flow svg { width: 100%; height: auto; display: block; }
.como-grid {
  display: grid; grid-template-columns: repeat(4,1fr);
  border-top: 1px solid var(--ink);
  border-bottom: 1px solid var(--ink);
  margin-top: 2rem;
}
.como-card {
  padding: 2rem 1.75rem;
  border-right: 1px solid var(--rule);
  display: flex; flex-direction: column; gap: 0.5rem;
}
.como-card:last-child { border-right: none; }
.como-n {
  font-family: var(--serif); font-style: italic;
  font-size: 2.6rem; color: var(--accent); font-weight: 400;
  line-height: 1; margin-bottom: 0.5rem;
}
.como-title { font-family: var(--serif); font-weight: 500; font-size: 1.15rem; color: var(--ink); letter-spacing: -0.01em; }
.como-desc { font-size: 0.95rem; color: var(--ink-soft); line-height: 1.55; }
@media (max-width: 900px) {
  .como-grid { grid-template-columns: repeat(2, 1fr); }
  .como-card:nth-child(2) { border-right: none; }
  .como-card { border-bottom: 1px solid var(--rule); }
}
@media (max-width: 540px) {
  .como-grid { grid-template-columns: 1fr; }
  .como-card { border-right: none; }
}

/* ---------- POR QUÉ ---------- */
.porque-bg {
  background: var(--paper);
  border-top: 1px solid var(--rule);
  border-bottom: 1px solid var(--rule);
}
.porque-inner {
  max-width: 1240px; margin: 0 auto;
  padding: 110px 2.5rem;
}
.porque-grid {
  display: grid; grid-template-columns: repeat(3, 1fr);
  border-top: 1px solid var(--ink);
  border-left: 1px solid var(--rule);
}
.porque-card {
  padding: 2.5rem 2rem;
  display: flex; flex-direction: column; gap: 1rem;
  border-right: 1px solid var(--rule);
  border-bottom: 1px solid var(--rule);
  background: var(--paper);
  transition: background 0.2s;
}
.porque-card:hover { background: rgba(28,24,19,0.025); }
.porque-top {
  display:flex; justify-content: space-between; align-items: baseline;
  color: var(--ink-mid);
}
.porque-top .roman {
  font-family: var(--serif); font-style: italic;
  font-size: 1.6rem; color: var(--accent); font-weight: 400; line-height: 1;
}
.porque-title {
  font-family: var(--serif); font-weight: 500;
  font-size: 1.35rem; color: var(--ink); line-height: 1.15;
  letter-spacing: -0.015em;
}
.porque-desc { font-size: 0.98rem; color: var(--ink-soft); line-height: 1.6; }
.porque-detail {
  margin-top: auto;
  font-family: var(--serif); font-style: italic; font-size: 0.94rem;
  color: var(--ink-mid); line-height: 1.55;
  padding-left: 1rem; border-left: 2px solid var(--accent);
}
.porque-card-cta {
  background: var(--paper-deep);
  color: var(--paper);
  justify-content: space-between;
  grid-column: span 1;
}
.porque-card-cta:hover { background: #221b14; }
.porque-cta-label {
  font-family: var(--mono); font-size: 10px; letter-spacing: 0.16em; text-transform: uppercase;
  color: var(--mid-on-dark);
}
.porque-cta-text {
  font-family: var(--serif); font-style: italic;
  font-size: 1.15rem; line-height: 1.4; color: var(--paper-on-dark);
}
.btn-cta-paper {
  align-self: flex-start;
  color: var(--paper); background: transparent;
  border: 1px solid rgba(243,236,220,0.4);
  padding: 12px 18px 11px; border-radius: 999px;
  font-family: var(--mono); font-size: 10px; letter-spacing: 0.14em; text-transform: uppercase;
  text-decoration: none;
  transition: background 0.18s, color 0.18s, border-color 0.18s;
  display: inline-flex; align-items: center; gap: 10px;
}
.btn-cta-paper:hover { background: var(--paper); color: var(--ink); border-color: var(--paper); }
@media (max-width: 960px) {
  .porque-grid { grid-template-columns: repeat(2,1fr); }
  .porque-card-cta { grid-column: span 2; }
}
@media (max-width: 640px) {
  .porque-grid { grid-template-columns: 1fr; }
  .porque-card-cta { grid-column: span 1; }
}

/* ---------- TRIAL / DEMO ---------- */
.trial-bg {
  background: var(--paper-deep);
  color: var(--paper);
  position: relative;
}
.trial-bg::before {
  content:''; position:absolute; inset:0; pointer-events:none;
  background-image: repeating-linear-gradient(0deg, transparent 0 32px, rgba(243,236,220,0.025) 32px 33px);
}
.trial-inner {
  max-width: 1240px; margin: 0 auto;
  padding: 110px 2.5rem;
  display: grid; grid-template-columns: 1fr 1fr; gap: 5rem; align-items: start;
  position: relative;
}
.trial-bg h2 { color: var(--paper); }
.trial-bg h2 em { color: var(--accent-soft); }
.trial-bg .section-header .left { color: var(--mid-on-dark); }
.trial-bg .section-header .left .num { color: var(--accent-soft); }
.trial-bg .section-header { border-bottom-color: var(--rule-on-dark); }
.trial-left > p {
  color: var(--paper-on-dark); font-size: 1.1rem; line-height: 1.6;
  margin: 0 0 2rem; max-width: 44ch;
}
.trial-checks { display: flex; flex-direction: column; border-top: 1px solid var(--rule-on-dark); }
.trial-check {
  display: flex; align-items: baseline; gap: 1rem;
  padding: 0.9rem 0;
  border-bottom: 1px solid var(--rule-on-dark);
  color: var(--paper-on-dark); font-size: 1rem;
}
.trial-check .ck { font-family: var(--serif); font-style: italic; color: var(--accent-soft); font-size: 1.15rem; flex-shrink: 0; width: 18px; }

.trial-form {
  background: var(--paper);
  color: var(--ink);
  border-radius: 4px;
  padding: 2.5rem;
  border: 1px solid rgba(243,236,220,0.1);
  box-shadow: 0 1px 0 rgba(28,24,19,0.05), 0 32px 70px -36px rgba(0,0,0,0.6);
}
.form-title {
  font-family: var(--serif); font-weight: 500;
  font-size: 1.6rem; color: var(--ink); letter-spacing: -0.015em;
  margin-bottom: 0.35rem;
}
.form-sub {
  font-family: var(--serif); font-style: italic;
  color: var(--ink-mid); margin-bottom: 1.5rem; font-size: 0.98rem;
  padding-bottom: 1.25rem; border-bottom: 1px solid var(--rule);
}
.field { margin-bottom: 1.1rem; }
.field label {
  display: block;
  font-family: var(--mono); font-size: 10px; letter-spacing: 0.14em; text-transform: uppercase;
  color: var(--ink-mid); margin-bottom: 8px; font-weight: 500;
}
.field input, .field select {
  width: 100%; padding: 12px 0; background: transparent;
  border: none; border-bottom: 1px solid var(--rule-strong);
  font-family: var(--serif); font-size: 17px; color: var(--ink);
  outline: none; transition: border-color 0.18s; appearance: none;
  -webkit-appearance: none;
  border-radius: 0;
}
.field input::placeholder { color: var(--ink-faint); font-style: italic; }
.field input:focus, .field select:focus { border-bottom-color: var(--accent); }
.field select {
  background-image: linear-gradient(45deg, transparent 50%, var(--ink-mid) 50%), linear-gradient(135deg, var(--ink-mid) 50%, transparent 50%);
  background-position: calc(100% - 14px) calc(50% - 2px), calc(100% - 9px) calc(50% - 2px);
  background-size: 5px 5px, 5px 5px;
  background-repeat: no-repeat;
  padding-right: 28px;
}
.btn-submit {
  width: 100%; margin-top: 0.5rem;
  padding: 14px 18px 13px; background: var(--ink); color: var(--paper);
  border: 1px solid var(--ink); border-radius: 999px;
  font-family: var(--mono); font-size: 11px; letter-spacing: 0.14em; text-transform: uppercase;
  font-weight: 500; cursor: pointer;
  transition: background 0.18s, color 0.18s;
}
.btn-submit:hover { background: var(--accent); border-color: var(--accent); }
.btn-submit:disabled { opacity: 0.5; cursor: not-allowed; }
.form-note { text-align: center; margin-top: 0.9rem; color: var(--ink-faint); font-family: var(--serif); font-style: italic; font-size: 0.86rem; }

@media (max-width: 900px) { .trial-inner { grid-template-columns: 1fr; gap: 3rem; } }

/* ---------- FOOTER ---------- */
footer {
  background: var(--paper);
  padding: 3rem 2.5rem 2.5rem;
  border-top: 1px solid var(--rule);
}
.footer-inner {
  max-width: 1240px; margin: 0 auto;
  display: flex; justify-content: space-between; align-items: center; flex-wrap: wrap; gap: 1.5rem;
}
.footer-logo { display: inline-flex; align-items: center; text-decoration: none; }
.footer-logo-img { height: 50px; width: auto; display: block; }
.footer-links { display: flex; gap: 1.5rem; flex-wrap: wrap; }
.footer-links a {
  font-family: var(--mono); font-size: 11px; letter-spacing: 0.14em; text-transform: uppercase;
  color: var(--ink-soft); text-decoration: none; transition: color 0.15s;
}
.footer-links a:hover { color: var(--accent); }
.footer-copy { font-family: var(--mono); font-size: 11px; letter-spacing: 0.1em; text-transform: uppercase; color: var(--ink-faint); }

/* ---------- RESPONSIVE ---------- */
@media (max-width: 640px) {
  nav { padding: 0 1.25rem; }
  .nav-hamburger { display: flex; }
  .nav-links {
    display: none;
    position: fixed;
    top: 64px; left: 0; right: 0;
    background: rgba(243,236,220,0.97);
    backdrop-filter: blur(14px);
    -webkit-backdrop-filter: blur(14px);
    flex-direction: column;
    gap: 0;
    padding: 0.5rem 0 1.5rem;
    border-bottom: 1px solid var(--rule);
    list-style: none;
  }
  .nav-links.open { display: flex; }
  .nav-links li { width: 100%; }
  .nav-links a {
    display: block;
    padding: 14px 1.5rem;
    font-size: 12px;
    border-bottom: 1px solid var(--rule);
  }
  .nav-cta {
    margin: 1rem 1.5rem 0 !important;
    display: block !important;
    text-align: center;
    border-radius: 999px !important;
    padding: 12px 1.5rem !important;
    background: var(--ink) !important;
    border-bottom: none !important;
  }
  .hero { padding: 100px 1.25rem 40px; }
  .section { padding: 70px 1.25rem; }
  .solutions-inner, .ia-inner, .porque-inner, .trial-inner { padding: 70px 1.25rem; }
  .masthead-inner { padding: 14px 1.25rem; }
  .trial-form { padding: 1.5rem; }
}