/* =========================================================================
   Indomatik · Web corporativa
   IBM Plex Sans + IBM Plex Mono · paleta industrial sobria
   ========================================================================= */

:root {
  /* DARK (default) */
  --bg:        #0B0E13;
  --surface:   #131820;
  --surface-2: #1A2029;
  --text:      #E8EAED;
  --text-mute: #9099A4;
  --text-dim:  #5A6270;
  --line:      #232A35;
  --line-2:    #2D3542;

  --accent:    #3B82F6;
  --accent-2:  #1D4ED8;
  --accent-soft: rgba(59,130,246,0.10);
  --signal:    #10B981;
  --warn:      #F59E0B;
  --error:     #EF4444;

  --f-sans: 'IBM Plex Sans', -apple-system, BlinkMacSystemFont, system-ui, sans-serif;
  --f-mono: 'IBM Plex Mono', ui-monospace, monospace;

  --r-sm: 6px;
  --r-md: 10px;
  --r-lg: 14px;

  --ease: cubic-bezier(0.4, 0, 0.2, 1);
}

[data-theme="light"] {
  --bg:        #F8F9FA;
  --surface:   #FFFFFF;
  --surface-2: #F1F3F5;
  --text:      #0F1419;
  --text-mute: #5C6470;
  --text-dim:  #97A0AC;
  --line:      #E1E5EB;
  --line-2:    #CFD5DD;

  --accent:    #2563EB;
  --accent-2:  #1E40AF;
  --accent-soft: rgba(37,99,235,0.08);
  --signal:    #059669;
  --warn:      #D97706;
  --error:     #DC2626;
}

* { box-sizing: border-box; margin: 0; padding: 0; -webkit-tap-highlight-color: transparent; }
html { scroll-behavior: smooth; }
body {
  font-family: var(--f-sans);
  background: var(--bg);
  color: var(--text);
  font-size: 15px;
  line-height: 1.55;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
  font-feature-settings: "ss01", "ss02";
  transition: background 250ms var(--ease), color 250ms var(--ease);
}
img { max-width: 100%; height: auto; display: block; }
a { color: inherit; text-decoration: none; }
::selection { background: var(--accent); color: #fff; }

.container { max-width: 1200px; margin: 0 auto; padding: 0 24px; }
@media (max-width: 640px) { .container { padding: 0 18px; } }

.eyebrow {
  font-family: var(--f-mono);
  font-size: 0.72rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--text-mute);
  font-weight: 500;
}
.eyebrow .dot {
  display: inline-block;
  width: 6px; height: 6px; border-radius: 50%;
  background: var(--accent);
  margin-right: 8px;
  vertical-align: middle;
}

/* === NAV === */
.nav {
  position: sticky; top: 0; z-index: 100;
  display: flex; align-items: center; justify-content: space-between;
  padding: 14px 24px;
  background: color-mix(in srgb, var(--bg) 88%, transparent);
  backdrop-filter: blur(16px) saturate(140%);
  -webkit-backdrop-filter: blur(16px) saturate(140%);
  border-bottom: 1px solid transparent;
  transition: border-color 250ms var(--ease), padding 250ms var(--ease);
}
.nav.scrolled { border-bottom-color: var(--line); }
.brand {
  display: inline-flex; align-items: center; gap: 10px;
  font-weight: 600; font-size: 1.05rem; letter-spacing: -0.01em;
  color: var(--text);
}
.brand-logo { width: 28px; height: 28px; }
.nav-links {
  display: flex; align-items: center; gap: 4px;
  font-size: 0.92rem; font-weight: 500;
}
.nav-links a:not(.btn-nav-cta) {
  padding: 8px 14px;
  color: var(--text-mute);
  border-radius: var(--r-sm);
  transition: color 200ms var(--ease), background 200ms var(--ease);
}
.nav-links a:not(.btn-nav-cta):hover {
  color: var(--text); background: var(--surface);
}
.btn-nav-cta {
  margin-left: 8px;
  background: var(--accent); color: #fff !important;
  padding: 9px 16px; border-radius: var(--r-sm);
  font-weight: 600;
  transition: background 200ms var(--ease);
}
.btn-nav-cta:hover { background: var(--accent-2); }
.theme-toggle {
  margin-left: 6px;
  background: transparent; border: 1px solid var(--line);
  width: 36px; height: 36px; border-radius: var(--r-sm); cursor: pointer;
  display: inline-flex; align-items: center; justify-content: center;
  color: var(--text-mute); transition: all 200ms var(--ease);
}
.theme-toggle:hover { color: var(--text); border-color: var(--line-2); }
.theme-toggle svg { width: 16px; height: 16px; }
.theme-toggle .icon-sun { display: none; }
[data-theme="light"] .theme-toggle .icon-sun { display: block; }
[data-theme="light"] .theme-toggle .icon-moon { display: none; }

@media (max-width: 760px) {
  .nav-links a:not(.btn-nav-cta) { display: none; }
}

/* === HERO === */
.hero {
  padding: 100px 24px 80px;
  position: relative;
  border-bottom: 1px solid var(--line);
}
.hero-inner {
  max-width: 1100px; margin: 0 auto;
}
.hero h1 {
  font-size: clamp(2.2rem, 5.5vw, 4rem);
  font-weight: 600;
  letter-spacing: -0.025em;
  line-height: 1.05;
  margin: 18px 0 22px;
  max-width: 22ch;
  color: var(--text);
}
.hero-deck {
  font-size: clamp(1.05rem, 1.4vw, 1.2rem);
  line-height: 1.55;
  color: var(--text-mute);
  max-width: 60ch;
  margin-bottom: 36px;
}
.hero-deck strong { color: var(--text); font-weight: 500; }
.hero-cta {
  display: flex; gap: 12px; flex-wrap: wrap;
}

.hero-meta {
  display: flex; gap: 0; flex-wrap: wrap;
  margin-top: 60px;
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}
.hero-meta > div {
  flex: 1 1 200px;
  padding: 18px 22px;
  border-right: 1px solid var(--line);
  display: flex; flex-direction: column; gap: 4px;
}
.hero-meta > div:last-child { border-right: none; }
@media (max-width: 720px) {
  .hero-meta > div { border-right: none; border-bottom: 1px solid var(--line); }
  .hero-meta > div:last-child { border-bottom: none; }
}
.hero-meta .label {
  font-family: var(--f-mono); font-size: 0.7rem;
  letter-spacing: 0.1em; text-transform: uppercase;
  color: var(--text-dim);
}
.hero-meta .value {
  font-size: 1.05rem; font-weight: 500; color: var(--text);
}
.hero-meta .value .unit {
  font-family: var(--f-mono); color: var(--text-mute);
  font-weight: 400; margin-left: 3px; font-size: 0.85rem;
}

/* === BUTTONS === */
.btn {
  display: inline-flex; align-items: center; gap: 8px;
  padding: 11px 20px;
  border-radius: var(--r-md);
  font-family: var(--f-sans);
  font-weight: 500; font-size: 0.95rem;
  border: 1px solid transparent;
  cursor: pointer;
  transition: all 180ms var(--ease);
  text-decoration: none; white-space: nowrap;
}
.btn svg { width: 16px; height: 16px; }
.btn-primary {
  background: var(--accent); color: #fff !important;
}
.btn-primary:hover { background: var(--accent-2); }
.btn-ghost {
  background: transparent;
  color: var(--text) !important;
  border-color: var(--line);
}
.btn-ghost:hover { border-color: var(--text-mute); background: var(--surface); }
.btn-block { width: 100%; justify-content: center; padding: 13px 20px; }

/* === SECTION === */
.section { padding: 90px 0; border-bottom: 1px solid var(--line); }
@media (max-width: 760px) { .section { padding: 64px 0; } }
.section.alt { background: var(--surface); }

.section-head {
  margin-bottom: 56px;
  max-width: 720px;
}
.section-head h2 {
  font-size: clamp(1.8rem, 3.5vw, 2.6rem);
  font-weight: 600;
  letter-spacing: -0.02em;
  line-height: 1.1;
  margin: 12px 0 14px;
  color: var(--text);
}
.section-head p {
  font-size: 1.05rem;
  color: var(--text-mute);
  line-height: 1.55;
  max-width: 56ch;
}
.section-head p strong { color: var(--text); font-weight: 500; }

/* === SERVICES GRID === */
.services {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1px;
  background: var(--line);
  border: 1px solid var(--line);
  border-radius: var(--r-md);
  overflow: hidden;
}
@media (max-width: 900px) { .services { grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 600px) { .services { grid-template-columns: 1fr; } }

.service {
  background: var(--bg);
  padding: 28px 26px;
  display: flex; flex-direction: column;
  transition: background 200ms var(--ease);
}
.section.alt .service { background: var(--surface); }
.service:hover { background: var(--surface-2); }

.service-num {
  font-family: var(--f-mono); font-size: 0.72rem;
  letter-spacing: 0.1em;
  color: var(--text-dim);
  margin-bottom: 14px;
}
.service h3 {
  font-size: 1.1rem; font-weight: 600;
  letter-spacing: -0.01em;
  color: var(--text);
  margin-bottom: 10px;
  line-height: 1.3;
}
.service p {
  font-size: 0.93rem;
  color: var(--text-mute);
  line-height: 1.55;
  margin-bottom: 14px;
  flex: 1;
}
.service .tech {
  display: flex; flex-wrap: wrap; gap: 6px;
  margin-top: auto;
}
.service .tech span {
  font-family: var(--f-mono); font-size: 0.72rem;
  padding: 3px 8px; border-radius: 4px;
  background: var(--surface-2); color: var(--text-mute);
  border: 1px solid var(--line);
  letter-spacing: 0.02em;
}
.section.alt .service .tech span { background: var(--bg); }

/* === CASE STUDY === */
.case-study {
  margin-top: 64px;
  padding: 36px;
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--r-lg);
  display: grid;
  grid-template-columns: 1fr 1.5fr;
  gap: 40px;
  align-items: start;
}
.section.alt .case-study { background: var(--bg); }
@media (max-width: 800px) {
  .case-study { grid-template-columns: 1fr; gap: 24px; padding: 28px; }
}
.case-study .label {
  font-family: var(--f-mono); font-size: 0.72rem;
  letter-spacing: 0.12em; text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 10px;
  display: flex; align-items: center; gap: 10px;
}
.case-study .label .live {
  display: inline-flex; align-items: center; gap: 6px;
  font-family: var(--f-mono); font-size: 0.7rem;
  color: var(--signal);
  padding-left: 10px; border-left: 1px solid var(--line);
}
.case-study .label .live::before {
  content: ''; width: 6px; height: 6px; border-radius: 50%;
  background: var(--signal);
  box-shadow: 0 0 0 3px color-mix(in srgb, var(--signal) 30%, transparent);
}
.case-study h3 {
  font-size: 1.55rem; font-weight: 600;
  letter-spacing: -0.02em;
  color: var(--text);
  margin-bottom: 8px;
}
.case-study .role {
  font-family: var(--f-mono); font-size: 0.85rem;
  color: var(--text-mute); margin-bottom: 0;
}
.case-study .body p {
  color: var(--text-mute); font-size: 0.96rem;
  line-height: 1.65; margin-bottom: 14px;
}
.case-study .body p strong { color: var(--text); font-weight: 500; }
.case-study .stats {
  margin-top: 22px;
  display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px;
  padding-top: 22px;
  border-top: 1px solid var(--line);
}
.case-study .stats > div { display: flex; flex-direction: column; gap: 4px; }
.case-study .stat-num {
  font-size: 1.5rem; font-weight: 600;
  color: var(--text); letter-spacing: -0.02em;
}
.case-study .stat-label {
  font-family: var(--f-mono); font-size: 0.7rem;
  letter-spacing: 0.08em; text-transform: uppercase;
  color: var(--text-dim);
}

/* === DEMO BANNER === */
.demo-banner {
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--r-lg);
  padding: 32px 36px;
  display: flex; align-items: center; justify-content: space-between;
  gap: 24px; flex-wrap: wrap;
}
.demo-banner .text h3 {
  font-size: 1.3rem; font-weight: 600;
  margin-bottom: 6px; letter-spacing: -0.015em;
  color: var(--text);
}
.demo-banner .text p {
  color: var(--text-mute); font-size: 0.95rem;
  max-width: 60ch;
}

/* === HOW: pasos === */
.how-grid {
  display: grid; grid-template-columns: repeat(4, 1fr); gap: 24px;
}
@media (max-width: 900px) { .how-grid { grid-template-columns: 1fr 1fr; } }
@media (max-width: 600px) { .how-grid { grid-template-columns: 1fr; } }
.how-step {
  padding: 24px 22px;
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--r-md);
}
.section.alt .how-step { background: var(--bg); }
.how-step .num {
  font-family: var(--f-mono);
  font-size: 0.78rem; color: var(--accent);
  letter-spacing: 0.1em;
  margin-bottom: 14px;
}
.how-step h3 {
  font-size: 1.05rem; font-weight: 600;
  margin-bottom: 8px; letter-spacing: -0.01em;
  color: var(--text);
}
.how-step p {
  font-size: 0.9rem; color: var(--text-mute);
  line-height: 1.55;
}

/* === CONTACT === */
.contact-shell {
  display: grid;
  grid-template-columns: 0.8fr 1.4fr;
  gap: 56px;
  align-items: start;
}
@media (max-width: 900px) { .contact-shell { grid-template-columns: 1fr; gap: 36px; } }
.contact-side h2 {
  font-size: clamp(1.8rem, 3.5vw, 2.4rem);
  font-weight: 600; letter-spacing: -0.02em;
  margin: 12px 0 14px; line-height: 1.1;
}
.contact-side p {
  color: var(--text-mute); font-size: 1.02rem;
  line-height: 1.6; margin-bottom: 30px;
  max-width: 42ch;
}
.contact-direct {
  border-top: 1px solid var(--line);
  padding-top: 22px;
}
.contact-direct .row {
  display: grid; grid-template-columns: 90px 1fr; gap: 14px;
  padding: 9px 0;
  font-size: 0.92rem;
  border-bottom: 1px solid var(--line);
}
.contact-direct .row:last-child { border-bottom: none; }
.contact-direct .row .k {
  font-family: var(--f-mono); font-size: 0.72rem;
  letter-spacing: 0.1em; text-transform: uppercase;
  color: var(--text-dim);
  align-self: center;
}
.contact-direct .row .v { color: var(--text); }
.contact-direct .row a { color: var(--text); border-bottom: 1px dotted var(--line-2); }
.contact-direct .row a:hover { color: var(--accent); }

.contact-form {
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--r-lg);
  padding: 32px;
}
@media (max-width: 600px) { .contact-form { padding: 24px; } }
.contact-form .form-row {
  display: grid; grid-template-columns: 1fr 1fr; gap: 14px;
}
@media (max-width: 600px) { .contact-form .form-row { grid-template-columns: 1fr; gap: 0; } }
.field { display: block; margin-bottom: 16px; }
.field > span {
  display: block;
  font-family: var(--f-mono); font-size: 0.7rem;
  letter-spacing: 0.1em; text-transform: uppercase;
  color: var(--text-dim);
  margin-bottom: 6px;
  font-weight: 500;
}
.field > span small { color: var(--text-dim); font-family: var(--f-sans); text-transform: none; letter-spacing: normal; font-size: 0.78rem; }
.field input, .field textarea {
  width: 100%;
  padding: 10px 12px;
  background: var(--bg);
  border: 1px solid var(--line);
  border-radius: var(--r-sm);
  color: var(--text);
  font-family: var(--f-sans); font-size: 0.95rem;
  transition: border-color 180ms var(--ease), box-shadow 180ms var(--ease);
}
.field input:focus, .field textarea:focus {
  outline: none;
  border-color: var(--accent);
  box-shadow: 0 0 0 3px var(--accent-soft);
}
.field textarea { resize: vertical; min-height: 110px; }

.field-radio { margin-bottom: 18px; }
.radio-group { display: flex; gap: 8px; flex-wrap: wrap; margin-top: 6px; }
.radio { margin: 0 !important; padding: 0; }
.radio input { display: none; }
.radio span {
  display: inline-block; padding: 7px 14px;
  font-size: 0.86rem;
  background: var(--bg); border: 1px solid var(--line);
  border-radius: var(--r-sm);
  color: var(--text-mute); cursor: pointer;
  transition: all 180ms var(--ease);
}
.radio span:hover { border-color: var(--line-2); color: var(--text); }
.radio input:checked + span {
  background: var(--accent); color: #fff; border-color: var(--accent);
}

.field-checkbox {
  display: flex; align-items: flex-start; gap: 10px;
  margin-bottom: 22px; font-size: 0.85rem; color: var(--text-mute);
  line-height: 1.5;
}
.field-checkbox input { margin-top: 3px; flex-shrink: 0; accent-color: var(--accent); }
.field-checkbox a { color: var(--text); border-bottom: 1px solid var(--line-2); }
.field-checkbox a:hover { color: var(--accent); }
.form-status {
  margin-top: 16px; text-align: center;
  font-family: var(--f-mono); font-size: 0.85rem;
  min-height: 1.4em; color: var(--text-mute);
}
.form-status.success { color: var(--signal); }
.form-status.error { color: var(--error); }

/* === FOOTER === */
.footer {
  padding: 48px 0 32px;
  background: var(--bg);
}
.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: 32px;
  padding-bottom: 32px;
  border-bottom: 1px solid var(--line);
}
@media (max-width: 800px) { .footer-grid { grid-template-columns: 1fr 1fr; gap: 24px; } }
@media (max-width: 500px) { .footer-grid { grid-template-columns: 1fr; } }
.footer-brand {
  display: flex; align-items: center; gap: 10px;
  margin-bottom: 12px;
  font-weight: 600; font-size: 1.05rem;
}
.footer-brand img { width: 26px; height: 26px; }
.footer-grid p {
  color: var(--text-mute); font-size: 0.88rem;
  line-height: 1.55; max-width: 36ch;
}
.footer-col h4 {
  font-family: var(--f-mono);
  font-size: 0.7rem; letter-spacing: 0.12em; text-transform: uppercase;
  color: var(--text-dim);
  margin-bottom: 14px;
  font-weight: 500;
}
.footer-col a {
  display: block;
  font-size: 0.9rem; color: var(--text-mute);
  padding: 4px 0;
  transition: color 180ms var(--ease);
}
.footer-col a:hover { color: var(--text); }
.footer-bottom {
  padding-top: 24px;
  display: flex; justify-content: space-between; flex-wrap: wrap; gap: 12px;
  font-family: var(--f-mono); font-size: 0.78rem;
  color: var(--text-dim);
}

/* === REVEAL === */
.reveal { opacity: 0; transform: translateY(14px); transition: opacity 600ms var(--ease), transform 600ms var(--ease); }
.reveal.in { opacity: 1; transform: translateY(0); }

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

/* === LEGAL === */
.legal-page { max-width: 760px; margin: 60px auto 80px; padding: 0 24px; }
.legal-page h1 {
  font-size: clamp(1.8rem, 3.5vw, 2.4rem);
  font-weight: 600; letter-spacing: -0.02em;
  margin-bottom: 28px;
}
.legal-page h2 {
  font-size: 1.1rem; font-weight: 600;
  letter-spacing: -0.01em;
  margin: 32px 0 12px;
}
.legal-page p { color: var(--text-mute); margin-bottom: 12px; line-height: 1.7; }
.legal-page p strong { color: var(--text); font-weight: 500; }
.legal-page a { color: var(--accent); border-bottom: 1px solid transparent; transition: border-color 180ms; }
.legal-page a:hover { border-bottom-color: var(--accent); }
.legal-page ul { margin: 12px 0 16px 22px; color: var(--text-mute); }
.legal-page ul li { margin-bottom: 8px; line-height: 1.6; }
.legal-page code {
  font-family: var(--f-mono); font-size: 0.86rem;
  background: var(--surface-2); padding: 2px 6px; border-radius: 4px;
  border: 1px solid var(--line);
}
.legal-back {
  display: inline-flex; align-items: center; gap: 6px;
  font-family: var(--f-mono); font-size: 0.8rem;
  color: var(--text-mute);
  margin-bottom: 28px;
}
.legal-back:hover { color: var(--text); }
.legal-data {
  margin: 24px 0;
  padding: 24px;
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--r-md);
}
.reveal-btn {
  background: var(--accent); color: #fff !important;
  border: none; padding: 10px 18px; border-radius: var(--r-sm);
  font-family: var(--f-sans); font-weight: 500; font-size: 0.9rem;
  cursor: pointer;
  transition: background 180ms var(--ease);
}
.reveal-btn:hover { background: var(--accent-2); }
.reveal-content { display: none; margin-top: 16px; font-family: var(--f-mono); font-size: 0.9rem; line-height: 1.85; }
.reveal-content.shown { display: block; }
.reveal-content dt {
  font-family: var(--f-mono); font-weight: 500;
  font-size: 0.7rem; text-transform: uppercase; letter-spacing: 0.12em;
  color: var(--text-dim); margin-top: 12px;
}
.reveal-content dd { color: var(--text); margin-left: 0; }