/* =============================================================================
   AICO SYSTEMS — landing
   ========================================================================== */

/* --- Fonts ---------------------------------------------------------------- */

/* Archivo ships as a variable font: one file covers the whole weight range. */
@font-face {
  font-family: 'Archivo';
  font-style: normal;
  font-weight: 100 900;
  font-stretch: 100%;
  font-display: swap;
  src: url('../fonts/archivo-latin.woff2') format('woff2');
  unicode-range: U+0000-00FF, U+0131, U+0152-0153, U+02BB-02BC, U+02C6, U+02DA,
    U+02DC, U+0304, U+0308, U+0329, U+2000-206F, U+20AC, U+2122, U+2191, U+2193,
    U+2212, U+2215, U+FEFF, U+FFFD;
}
@font-face {
  font-family: 'Archivo';
  font-style: normal;
  font-weight: 100 900;
  font-stretch: 100%;
  font-display: swap;
  src: url('../fonts/archivo-latin-ext.woff2') format('woff2');
  unicode-range: U+0100-02BA, U+02BD-02C5, U+02C7-02CC, U+02CE-02D7, U+02DD-02FF,
    U+0304, U+0308, U+0329, U+1D00-1DBF, U+1E00-1E9F, U+1EF2-1EFF, U+2020,
    U+20A0-20AB, U+20AD-20C0, U+2113, U+2C60-2C7F, U+A720-A7FF;
}
@font-face {
  font-family: 'IBM Plex Mono';
  font-style: normal;
  font-weight: 400;
  font-display: swap;
  src: url('../fonts/plexmono-400-latin.woff2') format('woff2');
  unicode-range: U+0000-00FF, U+0131, U+0152-0153, U+02BB-02BC, U+02C6, U+02DA,
    U+02DC, U+0304, U+0308, U+0329, U+2000-206F, U+20AC, U+2122, U+2191, U+2193,
    U+2212, U+2215, U+FEFF, U+FFFD;
}
@font-face {
  font-family: 'IBM Plex Mono';
  font-style: normal;
  font-weight: 400;
  font-display: swap;
  src: url('../fonts/plexmono-400-latin-ext.woff2') format('woff2');
  unicode-range: U+0100-02BA, U+02BD-02C5, U+02C7-02CC, U+02CE-02D7, U+02DD-02FF,
    U+0304, U+0308, U+0329, U+1D00-1DBF, U+1E00-1E9F, U+1EF2-1EFF, U+2020,
    U+20A0-20AB, U+20AD-20C0, U+2113, U+2C60-2C7F, U+A720-A7FF;
}
@font-face {
  font-family: 'IBM Plex Mono';
  font-style: normal;
  font-weight: 500;
  font-display: swap;
  src: url('../fonts/plexmono-500-latin.woff2') format('woff2');
  unicode-range: U+0000-00FF, U+0131, U+0152-0153, U+02BB-02BC, U+02C6, U+02DA,
    U+02DC, U+0304, U+0308, U+0329, U+2000-206F, U+20AC, U+2122, U+2191, U+2193,
    U+2212, U+2215, U+FEFF, U+FFFD;
}
@font-face {
  font-family: 'IBM Plex Mono';
  font-style: normal;
  font-weight: 500;
  font-display: swap;
  src: url('../fonts/plexmono-500-latin-ext.woff2') format('woff2');
  unicode-range: U+0100-02BA, U+02BD-02C5, U+02C7-02CC, U+02CE-02D7, U+02DD-02FF,
    U+0304, U+0308, U+0329, U+1D00-1DBF, U+1E00-1E9F, U+1EF2-1EFF, U+2020,
    U+20A0-20AB, U+20AD-20C0, U+2113, U+2C60-2C7F, U+A720-A7FF;
}

/* --- Tokens --------------------------------------------------------------- */

:root {
  --bg: #e9e9e5;
  --surface: #f3f3ef;
  --fg: #151515;
  --fg2: #62625e;
  --grid: #d4d4cf;
  --border: #c7c7c1;
  --hair: #c7c7c1;
  --accent: #1f6b3a;
  --orange: #c4491a;

  --mono: 'IBM Plex Mono', ui-monospace, SFMono-Regular, Menlo, monospace;
  --sans: 'Archivo', Helvetica, Arial, sans-serif;

  --wrap: 1560px;
  --gutter: 2.5rem;
  --inset: clamp(1.25rem, 3vw, 3rem);
}

/* Dark environment: deep green ground, warm cream type, amber accents. */
:root[data-theme='dark'] {
  --bg: #0a1b1c;
  --surface: #10272a;
  --fg: #f2e8d8;
  --fg2: #93a08f;
  --grid: #15302f;
  --border: #22403f;
  --hair: #22403f;
  --accent: #57c98a;
  --orange: #ff7a45;
  color-scheme: dark;
}

/* --- Base ----------------------------------------------------------------- */

* { box-sizing: border-box; }

html {
  scroll-behavior: smooth;
  /* Sticky header must not cover the section a hash link jumps to. */
  scroll-padding-top: 68px;
}

body {
  margin: 0;
  background: var(--bg);
  color: var(--fg);
  font-family: var(--sans);
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

a { color: var(--fg); text-decoration: none; }
a:hover { color: var(--accent); }
h1, h2, h3 { font-weight: 500; letter-spacing: -0.03em; }
p { margin: 0; }
::selection { background: var(--accent); color: var(--bg); }
:focus-visible { outline: 1px solid var(--accent); outline-offset: 3px; }

.skip {
  position: absolute;
  left: -9999px;
  top: 0;
  z-index: 100;
  background: var(--fg);
  color: var(--bg);
  padding: 0.75rem 1.25rem;
  font-family: var(--mono);
  font-size: 0.7rem;
  letter-spacing: 0.12em;
}
.skip:focus { left: 0; color: var(--bg); }

.mono {
  font-family: var(--mono);
  font-size: 0.66rem;
  letter-spacing: 0.16em;
  color: var(--fg2);
}

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

/* Hairline frames: the design draws the page as a technical drawing sheet. */
.frame { border-left: 1px solid var(--hair); border-right: 1px solid var(--hair); }
.frame-t { border-top: 1px solid var(--hair); }
.frame-b { border-bottom: 1px solid var(--hair); }

.split {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: clamp(2rem, 5vw, 5rem);
  align-items: start;
}

.arrow { font-size: 0.7rem; }

/* Button shapes --------------------------------------------------------- */

.btn,
.btn-ghost {
  display: inline-flex;
  align-items: center;
  gap: 0.7rem;
  height: 46px;
  padding: 0 1.4rem;
  font-family: var(--mono);
  font-size: 0.68rem;
  letter-spacing: 0.12em;
  white-space: nowrap;
}
.btn { background: var(--fg); color: var(--bg); transition: opacity 0.2s; }
.btn:hover { opacity: 0.82; color: var(--bg); }
.btn-ghost { border: 1px solid var(--border); transition: border-color 0.2s; }
.btn-ghost:hover { border-color: var(--accent); }

.link-under {
  display: inline-flex;
  align-items: center;
  gap: 0.7rem;
  font-family: var(--mono);
  font-size: 0.68rem;
  letter-spacing: 0.12em;
  border-bottom: 1px solid var(--border);
  padding-bottom: 0.4rem;
  transition: border-color 0.2s;
}
.link-under:hover { border-color: var(--accent); }

/* --- Background grid ------------------------------------------------------ */

.grid-overlay {
  position: fixed;
  inset: 0;
  pointer-events: none;
  z-index: 0;
  background-image: linear-gradient(90deg, var(--grid) 1px, transparent 1px);
  background-size: calc(100vw / 6) 100%;
}

.page { position: relative; z-index: 1; }

/* --- Header --------------------------------------------------------------- */

.header {
  position: sticky;
  top: 0;
  z-index: 20;
  background: color-mix(in srgb, var(--bg) 88%, transparent);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--hair);
}

.nav {
  max-width: var(--wrap);
  margin: 0 auto;
  padding: 0 var(--gutter);
  height: 68px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 2rem;
}

.wordmark {
  display: inline-flex;
  align-items: center;
  gap: 0.6rem;
  font-size: 0.9rem;
  letter-spacing: 0.14em;
  font-weight: 600;
}
.wordmark:hover { color: var(--fg); }
.wordmark .mark { width: 22px; height: auto; display: block; color: var(--fg); }
.wordmark .slash { color: var(--fg2); }

.nav-links { display: flex; align-items: center; gap: 2.25rem; }
.nav-links a {
  display: flex;
  align-items: baseline;
  gap: 0.5rem;
  font-size: 0.82rem;
  letter-spacing: 0.04em;
}
.nav-links .num { font-family: var(--mono); font-size: 0.62rem; color: var(--fg2); }
.nav-links a[aria-current] { color: var(--fg); }
.nav-links a[aria-current] .num { color: var(--accent); }

.nav-tools { display: flex; align-items: center; gap: 0.75rem; }

.chip {
  display: flex;
  align-items: center;
  gap: 0.45rem;
  height: 32px;
  padding: 0 0.6rem;
  background: transparent;
  border: 1px solid var(--border);
  color: var(--fg2);
  font-family: var(--mono);
  font-size: 0.62rem;
  letter-spacing: 0.1em;
  cursor: pointer;
  transition: color 0.2s, border-color 0.2s;
}
.chip:hover { border-color: var(--accent); color: var(--fg); }
.chip .dot { width: 6px; height: 6px; background: var(--accent); display: block; }

.langs {
  display: flex;
  align-items: center;
  border: 1px solid var(--border);
  height: 32px;
  font-family: var(--mono);
  font-size: 0.62rem;
  letter-spacing: 0.1em;
}
.langs a {
  display: flex;
  align-items: center;
  height: 100%;
  padding: 0 0.55rem;
  border: 0;
  cursor: pointer;
  background: transparent;
  color: var(--fg2);
  font: inherit;
  letter-spacing: inherit;
  text-decoration: none;
}
.langs a[aria-current='true'] { background: var(--fg); color: var(--bg); }

.nav-cta {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  height: 32px;
  padding: 0 0.95rem;
  background: var(--fg);
  color: var(--bg);
  font-family: var(--mono);
  font-size: 0.62rem;
  letter-spacing: 0.1em;
  white-space: nowrap;
  transition: opacity 0.2s;
}
.nav-cta:hover { opacity: 0.82; color: var(--bg); }

/* Hamburger ------------------------------------------------------------- */

.burger {
  display: none;
  width: 32px;
  height: 32px;
  padding: 0;
  border: 1px solid var(--border);
  background: transparent;
  cursor: pointer;
  align-items: center;
  justify-content: center;
  flex-direction: column;
  gap: 4px;
  transition: border-color 0.2s;
}
.burger:hover { border-color: var(--accent); }
.burger span {
  display: block;
  width: 14px;
  height: 1px;
  background: var(--fg);
  transition: transform 0.25s, opacity 0.2s;
}
.burger[aria-expanded='true'] span:nth-child(1) { transform: translateY(5px) rotate(45deg); }
.burger[aria-expanded='true'] span:nth-child(2) { opacity: 0; }
.burger[aria-expanded='true'] span:nth-child(3) { transform: translateY(-5px) rotate(-45deg); }

.drawer {
  position: fixed;
  inset: 68px 0 0;
  z-index: 19;
  background: var(--bg);
  border-top: 1px solid var(--hair);
  padding: 2rem 1.25rem 3rem;
  display: flex;
  flex-direction: column;
  gap: 0;
  overflow-y: auto;
}
.drawer[hidden] { display: none; }
.drawer a.drawer-link {
  display: flex;
  align-items: baseline;
  gap: 1rem;
  padding: 1.1rem 0;
  border-bottom: 1px solid var(--hair);
  font-size: 1.35rem;
  letter-spacing: -0.02em;
}
.drawer a.drawer-link .num {
  font-family: var(--mono);
  font-size: 0.66rem;
  letter-spacing: 0.14em;
  color: var(--fg2);
}
.drawer-tools { display: flex; align-items: center; gap: 0.75rem; margin-top: 2rem; }
.drawer .btn { margin-top: 1.5rem; align-self: flex-start; }

/* --- Hero ----------------------------------------------------------------- */

.hero {
  padding: clamp(3.5rem, 7vw, 7.5rem) var(--inset) clamp(4rem, 8vw, 8rem);
}
.hero-eyebrow { display: flex; align-items: center; flex-wrap: wrap; gap: 0.35rem 0.9rem; }
/* Wrap between items rather than inside a phrase. */
.hero-eyebrow > span { white-space: nowrap; }
.hero-eyebrow .dia { color: var(--accent); }

.hero h1 {
  margin: clamp(1.75rem, 4vw, 3rem) 0 0;
  font-size: clamp(2.6rem, 7.4vw, 6.4rem);
  line-height: 0.95;
  letter-spacing: -0.035em;
  max-width: 17ch;
  text-wrap: balance;
}

.hero-body {
  display: grid;
  grid-template-columns: 1.15fr 0.85fr;
  gap: clamp(2rem, 5vw, 5rem);
  margin-top: clamp(2.5rem, 5vw, 4.5rem);
  align-items: end;
}
.hero-lead {
  max-width: 44ch;
  font-size: clamp(1rem, 1.15vw, 1.15rem);
  line-height: 1.55;
  color: var(--fg2);
}
.hero-actions { display: flex; flex-wrap: wrap; gap: 0.75rem; margin-top: 2.25rem; }
.hero-micro { margin: 0.9rem 0 0; font-size: 0.6rem; letter-spacing: 0.14em; }

/* Cierre de un resumen del hub (home.html), con su CTA centrado. */
.hub-cta { text-align: center; padding: 2rem 0; }
.hub-cta .hero-actions { justify-content: center; }

.spec {
  margin: 0;
  display: grid;
  grid-template-columns: auto auto;
  column-gap: 1.5rem;
  row-gap: 0.55rem;
  font-family: var(--mono);
  font-size: 0.66rem;
  letter-spacing: 0.12em;
  color: var(--fg2);
  border-top: 1px solid var(--hair);
  padding-top: 1rem;
  min-width: 240px;
}
.spec dt, .spec dd { margin: 0; }
.spec dd { text-align: right; color: var(--fg); }
.spec dd.is-accent { color: var(--accent); }
.hero-spec { display: flex; justify-content: flex-end; }

/* --- Section headers ------------------------------------------------------ */

.sec-head { padding: clamp(3rem, 6vw, 5.5rem) var(--inset); }
.sec-head .label { margin-bottom: 1.5rem; }
.sec-head h1, .sec-head h2 {
  margin: 0;
  font-size: clamp(1.9rem, 4vw, 3.4rem);
  line-height: 1.03;
  max-width: 20ch;
}
.sec-head p {
  max-width: 42ch;
  font-size: 1.02rem;
  line-height: 1.6;
  color: var(--fg2);
  padding-top: 0.35rem;
}

/* --- Products ------------------------------------------------------------- */

.product { display: grid; grid-template-columns: 1fr 1fr; }
.product-copy { padding: clamp(2rem, 4vw, 3.5rem) var(--inset); }
.product-copy.is-right { border-left: 1px solid var(--hair); }

.product-kicker {
  display: flex;
  justify-content: space-between;
  gap: 1rem;
  font-family: var(--mono);
  font-size: 0.64rem;
  letter-spacing: 0.14em;
  color: var(--fg2);
}
.product h2,
.product h3 {
  margin: 1.75rem 0 0;
  font-size: clamp(2.2rem, 4.4vw, 3.6rem);
  line-height: 1;
}
.product p {
  margin: 1.5rem 0 0;
  max-width: 40ch;
  font-size: 1rem;
  line-height: 1.6;
  color: var(--fg2);
}
.tags {
  list-style: none;
  margin: 2.25rem 0 0;
  padding: 0;
  display: grid;
  grid-template-columns: 1fr 1fr;
  border-top: 1px solid var(--hair);
  font-family: var(--mono);
  font-size: 0.64rem;
  letter-spacing: 0.14em;
  color: var(--fg2);
}
.tags li { padding: 0.7rem 0; border-bottom: 1px solid var(--hair); }
.tags li:nth-child(even) { padding-left: 1rem; }
.product-copy .link-under { margin-top: 2rem; }

/* Product shots in a browser frame --------------------------------------- */

.fig {
  background: var(--surface);
  padding: clamp(2rem, 4vw, 3.5rem);
  display: flex;
  align-items: center;
  justify-content: center;
  position: relative;
}
.fig.is-right { border-left: 1px solid var(--hair); }
.fig-label {
  position: absolute;
  top: 1rem;
  left: 1rem;
  font-family: var(--mono);
  font-size: 0.6rem;
  letter-spacing: 0.14em;
  color: var(--fg2);
}

.browser {
  margin: 0;
  width: 100%;
  max-width: 620px;
  border: 1px solid var(--border);
  background: var(--bg);
}
.browser-bar {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  height: 30px;
  padding: 0 0.7rem;
  border-bottom: 1px solid var(--border);
  background: var(--surface);
}
/* Squares rather than traffic lights: the page is drawn as a technical sheet. */
.browser-dots { display: flex; gap: 5px; }
.browser-dots i { width: 6px; height: 6px; border: 1px solid var(--border); display: block; }
.browser-url {
  font-family: var(--mono);
  font-size: 0.58rem;
  letter-spacing: 0.1em;
  color: var(--fg2);
}
.browser img { display: block; width: 100%; height: auto; }
.browser-link { display: block; transition: opacity 0.2s; }
.browser-link:hover { opacity: 0.92; }

/* --- Capabilities accordion ----------------------------------------------- */

.caps { border-left: 1px solid var(--hair); border-right: 1px solid var(--hair); border-bottom: 1px solid var(--hair); }
.cap {
  width: 100%;
  display: grid;
  grid-template-columns: 5rem 1fr 1.1fr 2.5rem;
  align-items: baseline;
  gap: 1rem;
  padding: clamp(1.1rem, 2vw, 1.6rem) var(--inset);
  border: 0;
  border-top: 1px solid var(--hair);
  cursor: pointer;
  background: transparent;
  color: inherit;
  font: inherit;
  text-align: left;
  transition: background 0.25s;
}
.cap[aria-expanded='true'] { background: var(--surface); }
.cap .num { font-family: var(--mono); font-size: 0.66rem; letter-spacing: 0.14em; color: var(--fg2); }
.cap[aria-expanded='true'] .num { color: var(--accent); }
.cap h3 { margin: 0; font-size: clamp(1.1rem, 2.1vw, 1.65rem); letter-spacing: -0.015em; }
.cap-desc { font-size: 0.95rem; line-height: 1.55; color: var(--fg2); max-width: 46ch; }

/* El colapso anima la altura en lugar de cortar en seco. */
.cap-desc { max-height: 10em; overflow: hidden; transition: max-height 0.3s ease, opacity 0.25s ease; }
.cap[aria-expanded='false'] .cap-desc { max-height: 0; opacity: 0; }
.cap .mark { font-family: var(--mono); font-size: 0.8rem; color: var(--fg2); text-align: right; justify-self: end; }

/* Proceso ----------------------------------------------------------------- */

.process { border-top: 1px solid var(--hair); padding: clamp(2.5rem, 5vw, 4rem) var(--inset); }
.process .label { margin-bottom: 2rem; }
.steps {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 2rem;
}
.steps li { border-top: 1px solid var(--hair); padding-top: 1rem; }
.steps .num { display: block; color: var(--accent); margin-bottom: 0.9rem; }
.steps h3 { margin: 0; font-size: 0.95rem; letter-spacing: 0.08em; font-weight: 600; }
.steps p { margin: 0.6rem 0 0; font-size: 0.9rem; line-height: 1.55; color: var(--fg2); }

/* --- Consulting ----------------------------------------------------------- */

.consulting {
  margin-top: clamp(3rem, 6vw, 6rem);
  background: var(--surface);
  border: 1px solid var(--hair);
  border-top: 1px solid var(--orange);
  padding: clamp(2.25rem, 5vw, 4.5rem) var(--inset);
}
.consulting-kicker { display: flex; justify-content: space-between; gap: 1rem; }
.consulting-kicker .brand { color: var(--orange); }
.consulting-body {
  display: grid;
  grid-template-columns: 1.25fr 0.75fr;
  gap: clamp(2rem, 5vw, 4.5rem);
  margin-top: clamp(2rem, 4vw, 3rem);
  align-items: end;
}
.consulting h2 {
  margin: 0;
  font-size: clamp(1.8rem, 3.8vw, 3.2rem);
  line-height: 1.05;
  max-width: 24ch;
}
.consulting h2 .accent-orange { color: var(--orange); }
.consulting p { max-width: 38ch; font-size: 1rem; line-height: 1.6; color: var(--fg2); }
.rule-list {
  list-style: none;
  margin: 2rem 0 0;
  padding: 0;
  border-top: 1px solid var(--border);
  font-family: var(--mono);
  font-size: 0.64rem;
  letter-spacing: 0.14em;
  color: var(--fg2);
}
.rule-list li { padding: 0.65rem 0; border-bottom: 1px solid var(--border); }
.btn-orange {
  display: inline-flex;
  align-items: center;
  gap: 0.7rem;
  margin-top: 2rem;
  height: 46px;
  padding: 0 1.4rem;
  border: 1px solid var(--orange);
  color: var(--orange);
  font-family: var(--mono);
  font-size: 0.68rem;
  letter-spacing: 0.12em;
  transition: background 0.2s, color 0.2s;
}
.btn-orange:hover { background: var(--orange); color: var(--surface); }

/* --- Company -------------------------------------------------------------- */

.company {
  margin-top: clamp(3rem, 6vw, 6rem);
  border: 1px solid var(--hair);
  padding: clamp(3rem, 6vw, 5.5rem) var(--inset);
}
.company .split { margin-top: 1.5rem; }
.company h2 { margin: 0; font-size: clamp(1.9rem, 4.2vw, 3.6rem); line-height: 1.02; max-width: 17ch; }
.spec-rows {
  margin: clamp(2.5rem, 5vw, 4rem) 0 0;
  display: grid;
  grid-template-columns: auto 1fr;
  font-family: var(--mono);
  font-size: 0.64rem;
  letter-spacing: 0.13em;
  color: var(--fg2);
  border-top: 1px solid var(--hair);
  max-width: 420px;
}
.spec-rows dt, .spec-rows dd { margin: 0; padding: 0.7rem 0; border-bottom: 1px solid var(--hair); }
.spec-rows dt { padding-right: 1.5rem; }
.spec-rows dd { text-align: right; color: var(--fg); }
.spec-rows dd.is-accent { color: var(--accent); }
.stack { margin-top: 2rem; max-width: 420px; }
.stack-row { font-size: 0.64rem; letter-spacing: 0.13em; color: var(--fg); line-height: 2; }
.company-copy { display: flex; flex-direction: column; gap: 1.5rem; padding-top: 0.5rem; }
.company-copy p { max-width: 44ch; font-size: 1.02rem; line-height: 1.6; color: var(--fg2); }
.company-copy p.is-strong { color: var(--fg); }
.company-copy .link-under { margin-top: 0.5rem; align-self: flex-start; }

/* FAQ --------------------------------------------------------------------- */

.faq { padding: clamp(2.5rem, 5vw, 4rem) var(--inset); }
.faq .label { margin-bottom: 1.5rem; }
.faq-list { max-width: 760px; }
.faq-list details { border-top: 1px solid var(--hair); }
.faq-list details:last-child { border-bottom: 1px solid var(--hair); }
.faq-list summary {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  gap: 1rem;
  padding: 1.1rem 0;
  cursor: pointer;
  font-size: 1.02rem;
  font-weight: 500;
  list-style: none;
}
.faq-list summary::-webkit-details-marker { display: none; }
.faq-list summary .mark { font-family: var(--mono); color: var(--fg2); }
.faq-list details[open] summary { color: var(--accent); }
.faq-list details[open] summary .mark { color: var(--accent); }
.faq-list p { margin: 0; padding: 0 0 1.25rem; max-width: 62ch; font-size: 0.95rem; line-height: 1.6; color: var(--fg2); }

/* --- Contact -------------------------------------------------------------- */

.contact { padding: clamp(5rem, 11vw, 10rem) var(--inset); text-align: center; }
.contact .label { letter-spacing: 0.18em; }
.contact h1 {
  margin: clamp(1.5rem, 3vw, 2.5rem) auto 0;
  font-size: clamp(2.1rem, 5.6vw, 4.8rem);
  line-height: 1;
  letter-spacing: -0.035em;
  max-width: 20ch;
}
.contact p { margin: 1.75rem auto 0; max-width: 42ch; font-size: 1.05rem; line-height: 1.6; color: var(--fg2); }
.mail-link { font-family: var(--mono); font-size: 0.7rem; letter-spacing: 0.12em; color: var(--fg2); }
.mail-link:hover { color: var(--accent); }

/* Contact form ----------------------------------------------------------- */

.form {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1.5rem;
  max-width: 720px;
  margin: clamp(2.5rem, 5vw, 3.5rem) auto 0;
  text-align: left;
}
.field { display: flex; flex-direction: column; gap: 0.55rem; }
.field-wide { grid-column: 1 / -1; }
.field label { color: var(--fg2); }

.field input,
.field select,
.field textarea {
  width: 100%;
  background: transparent;
  border: 1px solid var(--border);
  color: var(--fg);
  font-family: var(--sans);
  font-size: 0.95rem;
  line-height: 1.5;
  padding: 0.75rem 0.9rem;
  border-radius: 0;
  transition: border-color 0.2s;
}
.field textarea { resize: vertical; min-height: 120px; }
.field select {
  appearance: none;
  background-image: linear-gradient(45deg, transparent 50%, var(--fg2) 50%),
    linear-gradient(135deg, var(--fg2) 50%, transparent 50%);
  background-position: calc(100% - 1.2rem) 50%, calc(100% - 0.85rem) 50%;
  background-size: 0.35rem 0.35rem;
  background-repeat: no-repeat;
  cursor: pointer;
}
.field select:invalid { color: var(--fg2); }
.field select option { background: var(--surface); color: var(--fg); }
.field input::placeholder,
.field textarea::placeholder { color: var(--fg2); opacity: 0.7; }
.field input:hover,
.field select:hover,
.field textarea:hover { border-color: var(--fg2); }
.field input:focus,
.field select:focus,
.field textarea:focus { outline: none; border-color: var(--accent); }
.field input[aria-invalid='true'],
.field select[aria-invalid='true'],
.field textarea[aria-invalid='true'] { border-color: var(--orange); }

.field-error {
  font-family: var(--mono);
  font-size: 0.6rem;
  letter-spacing: 0.1em;
  color: var(--orange);
}

/* Off-screen rather than display:none — bots skip hidden inputs. */
.hp { position: absolute; left: -9999px; width: 1px; height: 1px; overflow: hidden; }

.form-foot {
  grid-column: 1 / -1;
  display: flex;
  align-items: center;
  gap: 1.25rem;
  flex-wrap: wrap;
}
.form-foot .btn { height: 52px; padding: 0 1.8rem; font-size: 0.7rem; letter-spacing: 0.14em; border: 0; cursor: pointer; }
.form-foot .btn[disabled] { opacity: 0.5; cursor: default; }
.form-status { font-size: 0.64rem; letter-spacing: 0.1em; margin: 0; }
.form-status.is-ok { color: var(--accent); }
.form-status.is-err { color: var(--orange); }
.form-note { margin: 0; flex-basis: 100%; font-size: 0.6rem; letter-spacing: 0.12em; color: var(--fg2); }

.contact-alt {
  display: flex;
  align-items: center;
  justify-content: center;
  flex-wrap: wrap;
  gap: 0.5rem 1rem;
  margin-top: clamp(2rem, 4vw, 3rem);
}
.contact-alt .sep { color: var(--fg2); }

/* --- Footer --------------------------------------------------------------- */

.footer-inner { border-top: 1px solid var(--hair); padding: clamp(2.5rem, 5vw, 4rem) var(--inset); }
.foot-cols { display: grid; grid-template-columns: 1.4fr 1fr 1fr 1fr; gap: 2rem; }
.foot-cols nav, .foot-col { display: flex; flex-direction: column; gap: 0.6rem; }
.foot-head {
  font-family: var(--mono);
  font-size: 0.6rem;
  letter-spacing: 0.14em;
  color: var(--fg2);
  margin-bottom: 0.3rem;
}
.foot-cols a { font-size: 0.88rem; }
.foot-cols a.is-orange:hover { color: var(--orange); }
.foot-tag { margin-top: 0.75rem; font-family: var(--mono); font-size: 0.64rem; letter-spacing: 0.12em; color: var(--fg2); }
.foot-bar {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem 2rem;
  justify-content: space-between;
  margin-top: clamp(2.5rem, 5vw, 4rem);
  padding-top: 1.25rem;
  border-top: 1px solid var(--hair);
  font-family: var(--mono);
  font-size: 0.62rem;
  letter-spacing: 0.13em;
  color: var(--fg2);
}
.foot-bar .ok { color: var(--accent); }

/* --- Motion --------------------------------------------------------------- */

@keyframes riseIn {
  from { opacity: 0; transform: translateY(14px); }
  to { opacity: 1; transform: translateY(0); }
}
.rise { animation: riseIn 0.6s ease-out both; }
.rise-1 { animation-delay: 0.06s; }
.rise-2 { animation-delay: 0.12s; }

/* Sections fade in as they enter the viewport; JS adds .is-in. */
.reveal { opacity: 0; transform: translateY(18px); transition: opacity 0.6s ease-out, transform 0.6s ease-out; }
.reveal.is-in { opacity: 1; transform: none; }

/* --- Responsive ----------------------------------------------------------- */

/* WhatsApp flotante: solo movil, sobrio, sin verde-burbuja generico */
.wa-float {
  display: none;
  position: fixed;
  right: 1rem;
  bottom: 1rem;
  z-index: 18;
  width: 52px;
  height: 52px;
  align-items: center;
  justify-content: center;
  gap: 0.35rem;
  background: var(--fg);
  color: var(--bg);
  border: 1px solid var(--border);
}
.wa-float .mono { font-size: 0.7rem; letter-spacing: 0.1em; color: var(--bg); }
.wa-float .wa-dot { width: 6px; height: 6px; background: var(--accent); }

@media (max-width: 1150px) {
  .nav-cta { display: none; }
}

@media (max-width: 900px) {
  :root { --gutter: 1.25rem; }
  .split, .hero-body, .consulting-body, .product { grid-template-columns: 1fr; }
  .nav-links, .nav-tools .langs { display: none; }
  .burger { display: flex; }
  .hero-spec { justify-content: flex-start; }
  .product-copy.is-right { border-left: 0; border-top: 1px solid var(--hair); }
  .fig.is-right { border-left: 0; }
  /* Keep the copy above the product shot on narrow screens. */
  .product .fig { order: 2; }
  .product .product-copy { order: 1; }
  .form { grid-template-columns: 1fr; }
  .cap { grid-template-columns: 2.2rem 1fr; }
  .cap-desc { grid-column: 2; padding-top: 0.5rem; }
  .cap .mark { display: none; }
  .foot-cols { grid-template-columns: 1fr 1fr; row-gap: 2.5rem; }
  .wa-float { display: flex; }
  .steps { grid-template-columns: 1fr 1fr; }
}

@media (max-width: 560px) {
  .hero h1 { font-size: clamp(2.1rem, 10vw, 3rem); }
  /* Give the product shot as much width as the frame allows. */
  .fig { padding: 2.75rem 1.1rem 1.5rem; }
  .tags { grid-template-columns: 1fr; }
  .tags li:nth-child(even) { padding-left: 0; }
  .product-kicker { flex-direction: column; gap: 0.35rem; }
  .steps { grid-template-columns: 1fr; }
}

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