/* ============================================================
   SURESTIA — surestia.com
   Digital engineering from the Spanish southeast.
   Palette: Paper #F6F5F1 · Ink #0F1720 · Cobalt #1B49C4 · Citrus #F0A22E
   Type: Bricolage Grotesque (display) · Figtree (body) · JetBrains Mono (labels)
   ============================================================ */

:root {
  --paper: #F6F5F1;
  --paper-2: #EFECE4;
  --sand: #E7E2D6;
  --ink: #0F1720;
  --ink-2: #1C2732;
  --muted: #55606C;
  --line: #D8D3C6;
  --azul: #1B49C4;
  --azul-dark: #12348F;
  --azul-soft: #E4EAFB;
  --citrus: #F0A22E;
  --white: #FFFFFF;
  --ok: #2E9E5B;
  --err: #C0392B;

  --font-display: "Bricolage Grotesque", "Segoe UI", sans-serif;
  --font-body: "Figtree", "Segoe UI", sans-serif;
  --font-mono: "JetBrains Mono", "SFMono-Regular", Consolas, monospace;

  --maxw: 1180px;
  --radius: 14px;
  --shadow: 0 18px 50px -22px rgba(15, 23, 32, .28);
  --ease: cubic-bezier(.22, .8, .3, 1);
}

/* ---------- Reset ---------- */
*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }
body {
  margin: 0;
  font-family: var(--font-body);
  font-size: 17px;
  line-height: 1.65;
  color: var(--ink);
  background: var(--paper);
  -webkit-font-smoothing: antialiased;
}
img, svg { max-width: 100%; display: block; }
a { color: var(--azul); text-decoration: none; }
a:hover { color: var(--azul-dark); }
h1, h2, h3, h4 { font-family: var(--font-display); line-height: 1.08; margin: 0 0 .5em; font-weight: 700; letter-spacing: -.015em; }
p { margin: 0 0 1em; }
:focus-visible { outline: 3px solid var(--azul); outline-offset: 3px; border-radius: 4px; }
::selection { background: var(--azul); color: #fff; }

.container { width: min(100% - 2.5rem, var(--maxw)); margin-inline: auto; }
.skip-link {
  position: absolute; left: -999px; top: 0; background: var(--ink); color: #fff;
  padding: .6rem 1rem; z-index: 200; border-radius: 0 0 8px 0;
}
.skip-link:focus { left: 0; color: #fff; }

/* ---------- Mono eyebrow (signature labels) ---------- */
.eyebrow {
  font-family: var(--font-mono);
  font-size: .74rem;
  letter-spacing: .14em;
  text-transform: uppercase;
  color: var(--azul);
  display: flex;
  align-items: center;
  gap: .65rem;
  margin-bottom: 1.1rem;
}
.eyebrow::before { content: ""; width: 34px; height: 2px; background: var(--citrus); flex: none; }

/* ---------- Header ---------- */
.site-header {
  position: sticky; top: 0; z-index: 100;
  background: rgba(246, 245, 241, .88);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--line);
}
.header-inner {
  display: flex; align-items: center; justify-content: space-between;
  gap: 1.5rem; padding: .85rem 0;
}
.brand { display: flex; align-items: center; gap: .6rem; color: var(--ink); }
.brand:hover { color: var(--ink); }
.brand svg { width: 34px; height: 34px; flex: none; }
.brand-name { font-family: var(--font-display); font-weight: 800; font-size: 1.32rem; letter-spacing: -.02em; }
.brand-name span { color: var(--azul); }

.main-nav ul { display: flex; gap: 1.6rem; list-style: none; margin: 0; padding: 0; }
.main-nav a {
  color: var(--ink); font-weight: 600; font-size: .95rem; position: relative; padding: .35rem 0;
}
.main-nav a::after {
  content: ""; position: absolute; left: 0; bottom: 0; width: 100%; height: 2px;
  background: var(--azul); transform: scaleX(0); transform-origin: left;
  transition: transform .25s var(--ease);
}
.main-nav a:hover::after, .main-nav a[aria-current="page"]::after { transform: scaleX(1); }
.main-nav a[aria-current="page"] { color: var(--azul); }

.header-cta { display: flex; align-items: center; gap: 1rem; }
.office-status {
  font-family: var(--font-mono); font-size: .72rem; letter-spacing: .06em;
  display: inline-flex; align-items: center; gap: .45rem; color: var(--muted); white-space: nowrap;
}
.office-status .dot {
  width: 9px; height: 9px; border-radius: 50%; background: var(--muted); flex: none;
  box-shadow: 0 0 0 3px rgba(85, 96, 108, .15);
}
.office-status.is-open .dot { background: var(--ok); box-shadow: 0 0 0 3px rgba(46, 158, 91, .18); }
.office-status.is-closed .dot { background: var(--citrus); box-shadow: 0 0 0 3px rgba(240, 162, 46, .18); }

.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: .5rem;
  font-family: var(--font-body); font-weight: 700; font-size: .95rem;
  padding: .78rem 1.5rem; border-radius: 999px; border: 2px solid transparent;
  cursor: pointer; transition: transform .2s var(--ease), background .2s, color .2s, border-color .2s;
}
.btn:active { transform: translateY(1px); }
.btn-primary { background: var(--azul); color: #fff; }
.btn-primary:hover { background: var(--azul-dark); color: #fff; }
.btn-outline { border-color: var(--ink); color: var(--ink); background: transparent; }
.btn-outline:hover { background: var(--ink); color: #fff; }
.btn-light { background: #fff; color: var(--ink); }
.btn-light:hover { background: var(--sand); color: var(--ink); }
.btn-lg { padding: .95rem 1.9rem; font-size: 1.02rem; }

/* Mobile nav toggle */
.nav-toggle {
  display: none; background: none; border: 0; cursor: pointer; padding: .5rem;
}
.nav-toggle span {
  display: block; width: 24px; height: 2px; background: var(--ink); margin: 5px 0;
  transition: transform .25s var(--ease), opacity .2s;
}
.nav-open .nav-toggle span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.nav-open .nav-toggle span:nth-child(2) { opacity: 0; }
.nav-open .nav-toggle span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

/* ---------- Hero ---------- */
.hero { position: relative; overflow: hidden; padding: 5.5rem 0 0; }
.hero-grid { display: grid; grid-template-columns: 1.15fr .85fr; gap: 3rem; align-items: center; }
.hero h1 {
  font-size: clamp(2.6rem, 5.4vw, 4.4rem);
  font-weight: 800;
  margin-bottom: 1.1rem;
}
.hero h1 em { font-style: normal; color: var(--azul); }
.hero .lead { font-size: 1.18rem; color: var(--muted); max-width: 34rem; }
.hero-actions { display: flex; flex-wrap: wrap; gap: 1rem; margin: 1.8rem 0 2.4rem; }
.hero-meta {
  display: flex; flex-wrap: wrap; gap: 1.6rem;
  font-family: var(--font-mono); font-size: .74rem; letter-spacing: .08em;
  color: var(--muted); text-transform: uppercase;
}
.hero-meta strong { display: block; font-size: 1.35rem; color: var(--ink); font-family: var(--font-display); letter-spacing: 0; }

/* Signature: horizon + sun */
.horizon { position: relative; margin-top: 4.2rem; height: 120px; }
.horizon .line { position: absolute; left: 0; right: 0; bottom: 40px; height: 2px; background: var(--ink); opacity: .85; }
.horizon .sun {
  position: absolute; bottom: 52px; left: 12%;
  width: 74px; height: 74px; border-radius: 50%;
  background: radial-gradient(circle at 35% 30%, #FFC964, var(--citrus) 70%);
  box-shadow: 0 0 0 14px rgba(240, 162, 46, .12), 0 0 60px rgba(240, 162, 46, .5);
  animation: sunrise 2.2s var(--ease) both;
}
.horizon .coords {
  position: absolute; right: 0; bottom: 6px;
  font-family: var(--font-mono); font-size: .72rem; letter-spacing: .12em; color: var(--muted);
}
.horizon .tick { position: absolute; bottom: 34px; width: 1px; height: 12px; background: var(--ink); opacity: .45; }
@keyframes sunrise { from { transform: translateY(46px); opacity: 0; } to { transform: none; opacity: 1; } }

/* Hero side card */
.hero-card {
  background: var(--ink); color: #E9EDF3; border-radius: var(--radius);
  padding: 2rem 2rem 1.6rem; box-shadow: var(--shadow); position: relative; overflow: hidden;
}
.hero-card::after {
  content: ""; position: absolute; right: -70px; top: -70px; width: 200px; height: 200px;
  border-radius: 50%; background: radial-gradient(circle, rgba(240,162,46,.35), transparent 70%);
}
.hero-card h2 { color: #fff; font-size: 1.25rem; margin-bottom: 1.2rem; }
.hero-card ul { list-style: none; margin: 0 0 1.2rem; padding: 0; }
.hero-card li {
  display: flex; gap: .7rem; padding: .55rem 0; border-bottom: 1px solid rgba(255,255,255,.09);
  font-size: .95rem;
}
.hero-card li:last-child { border-bottom: 0; }
.hero-card li::before { content: "→"; color: var(--citrus); font-family: var(--font-mono); }
.hero-card .mono { font-family: var(--font-mono); font-size: .72rem; letter-spacing: .1em; color: #9AA7B5; text-transform: uppercase; }

/* ---------- Sections ---------- */
.section { padding: 5.5rem 0; }
.section-alt { background: var(--paper-2); border-block: 1px solid var(--line); }
.section-ink { background: var(--ink); color: #E9EDF3; }
.section-ink h2, .section-ink h3 { color: #fff; }
.section-ink .eyebrow { color: #8FA6E8; }
.section-head { max-width: 46rem; margin-bottom: 3rem; }
.section-head h2 { font-size: clamp(1.9rem, 3.4vw, 2.7rem); }
.section-head p { color: var(--muted); font-size: 1.08rem; }
.section-ink .section-head p { color: #A9B4C0; }

/* Cards grid */
.grid { display: grid; gap: 1.4rem; }
.grid-3 { grid-template-columns: repeat(3, 1fr); }
.grid-2 { grid-template-columns: repeat(2, 1fr); }
.grid-4 { grid-template-columns: repeat(4, 1fr); }

.card {
  background: #fff; border: 1px solid var(--line); border-radius: var(--radius);
  padding: 1.8rem; transition: transform .25s var(--ease), box-shadow .25s var(--ease), border-color .25s;
}
.card:hover { transform: translateY(-4px); box-shadow: var(--shadow); border-color: var(--azul); }
.card h3 { font-size: 1.22rem; margin-top: 1rem; }
.card p { color: var(--muted); font-size: .97rem; margin: 0; }
.card .icon {
  width: 46px; height: 46px; border-radius: 12px; background: var(--azul-soft);
  display: grid; place-items: center; color: var(--azul);
}
.card .icon svg { width: 24px; height: 24px; }
.card-link { font-weight: 700; font-size: .92rem; display: inline-flex; gap: .35rem; margin-top: 1rem; }

/* Process */
.process { counter-reset: step; }
.process .card { position: relative; }
.process .card::before {
  counter-increment: step; content: "0" counter(step);
  font-family: var(--font-mono); font-size: .8rem; letter-spacing: .1em; color: var(--citrus);
  display: block; margin-bottom: .6rem;
}

/* Stats band */
.stats { display: grid; grid-template-columns: repeat(4, 1fr); gap: 1.5rem; text-align: left; }
.stat strong { display: block; font-family: var(--font-display); font-size: clamp(2rem, 4vw, 2.9rem); font-weight: 800; color: #fff; }
.stat span { font-family: var(--font-mono); font-size: .72rem; letter-spacing: .12em; text-transform: uppercase; color: #9AA7B5; }
.stat { border-left: 2px solid var(--citrus); padding-left: 1.1rem; }

/* Sectors / chips */
.chips { display: flex; flex-wrap: wrap; gap: .6rem; }
.chip {
  font-family: var(--font-mono); font-size: .74rem; letter-spacing: .06em;
  border: 1px solid var(--line); background: #fff; color: var(--ink);
  padding: .45rem .9rem; border-radius: 999px;
}

/* Case studies */
.case {
  background: #fff; border: 1px solid var(--line); border-radius: var(--radius);
  padding: 2rem; display: flex; flex-direction: column; gap: .8rem;
}
.case .sector { font-family: var(--font-mono); font-size: .72rem; letter-spacing: .12em; text-transform: uppercase; color: var(--azul); }
.case h3 { margin: 0; font-size: 1.28rem; }
.case p { color: var(--muted); font-size: .96rem; margin: 0; }
.case .result {
  margin-top: auto; padding-top: 1rem; border-top: 1px dashed var(--line);
  display: flex; gap: 1.5rem; flex-wrap: wrap;
}
.case .result div strong { font-family: var(--font-display); font-size: 1.4rem; display: block; color: var(--ink); }
.case .result div span { font-family: var(--font-mono); font-size: .68rem; letter-spacing: .1em; text-transform: uppercase; color: var(--muted); }

/* CTA band */
.cta-band {
  background: linear-gradient(135deg, var(--azul), var(--azul-dark));
  color: #fff; border-radius: calc(var(--radius) + 6px);
  padding: 3.4rem clamp(1.5rem, 5vw, 4rem);
  display: flex; align-items: center; justify-content: space-between; gap: 2rem; flex-wrap: wrap;
  position: relative; overflow: hidden;
}
.cta-band::after {
  content: ""; position: absolute; right: 8%; bottom: -60px; width: 160px; height: 160px; border-radius: 50%;
  background: radial-gradient(circle at 35% 30%, #FFC964, var(--citrus) 70%); opacity: .9;
}
.cta-band h2 { color: #fff; font-size: clamp(1.7rem, 3vw, 2.3rem); margin: 0 0 .4rem; }
.cta-band p { margin: 0; color: #D6DFF5; }
.cta-band .btn { position: relative; z-index: 1; }

/* ---------- Page hero (inner pages) ---------- */
.page-hero { padding: 4.5rem 0 3.5rem; border-bottom: 1px solid var(--line); }
.page-hero h1 { font-size: clamp(2.2rem, 4.6vw, 3.4rem); max-width: 18ch; }
.page-hero p { color: var(--muted); font-size: 1.12rem; max-width: 42rem; }

/* ---------- Service detail rows ---------- */
.service-row {
  display: grid; grid-template-columns: 1fr 1.4fr; gap: 3rem; padding: 3.2rem 0;
  border-bottom: 1px solid var(--line); align-items: start;
}
.service-row:last-child { border-bottom: 0; }
.service-row h2 { font-size: 1.7rem; }
.service-row .deliverables { list-style: none; margin: 1.2rem 0 0; padding: 0; display: grid; gap: .55rem; }
.service-row .deliverables li { display: flex; gap: .7rem; color: var(--ink-2); }
.service-row .deliverables li::before { content: "✓"; color: var(--azul); font-weight: 800; }
.service-row .tags { margin-top: 1.4rem; }

/* ---------- About ---------- */
.values { display: grid; grid-template-columns: repeat(3, 1fr); gap: 1.4rem; }
.timeline { list-style: none; margin: 0; padding: 0; border-left: 2px solid var(--line); }
.timeline li { padding: 0 0 1.8rem 1.6rem; position: relative; }
.timeline li::before {
  content: ""; position: absolute; left: -7px; top: .4rem; width: 12px; height: 12px;
  border-radius: 50%; background: var(--citrus); border: 2px solid var(--paper);
}
.timeline .year { font-family: var(--font-mono); font-size: .74rem; letter-spacing: .12em; color: var(--azul); }
.timeline h3 { font-size: 1.1rem; margin: .2rem 0 .3rem; }
.timeline p { color: var(--muted); font-size: .95rem; margin: 0; }

/* ---------- Contact ---------- */
.contact-grid { display: grid; grid-template-columns: .9fr 1.1fr; gap: 3rem; align-items: start; }
.contact-info .block { padding: 1.2rem 0; border-bottom: 1px solid var(--line); }
.contact-info .block:last-child { border-bottom: 0; }
.contact-info .label { font-family: var(--font-mono); font-size: .7rem; letter-spacing: .14em; text-transform: uppercase; color: var(--muted); margin-bottom: .3rem; }
.contact-info a.big, .contact-info .big { font-family: var(--font-display); font-size: 1.25rem; font-weight: 700; color: var(--ink); }
.contact-info a.big:hover { color: var(--azul); }
.hours-table { width: 100%; border-collapse: collapse; font-size: .95rem; }
.hours-table td { padding: .3rem 0; color: var(--ink-2); }
.hours-table td:last-child { text-align: right; font-family: var(--font-mono); font-size: .82rem; }

.form-card {
  background: #fff; border: 1px solid var(--line); border-radius: var(--radius);
  padding: clamp(1.5rem, 3vw, 2.4rem); box-shadow: var(--shadow);
}
.form-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 1.1rem; }
.form-field { display: flex; flex-direction: column; gap: .35rem; }
.form-field.full { grid-column: 1 / -1; }
.form-field label { font-weight: 700; font-size: .9rem; }
.form-field label .req { color: var(--err); }
.form-field input, .form-field select, .form-field textarea {
  font-family: var(--font-body); font-size: 1rem; color: var(--ink);
  padding: .8rem .95rem; border: 1.5px solid var(--line); border-radius: 10px;
  background: var(--paper); transition: border-color .2s, box-shadow .2s;
  width: 100%;
}
.form-field textarea { resize: vertical; min-height: 140px; }
.form-field input:focus, .form-field select:focus, .form-field textarea:focus {
  outline: none; border-color: var(--azul); box-shadow: 0 0 0 3px rgba(27, 73, 196, .15);
}
.form-field .error-msg { color: var(--err); font-size: .82rem; display: none; }
.form-field.has-error input, .form-field.has-error select, .form-field.has-error textarea { border-color: var(--err); }
.form-field.has-error .error-msg { display: block; }
.consent { display: flex; gap: .7rem; align-items: flex-start; font-size: .88rem; color: var(--muted); }
.consent input { width: 18px; height: 18px; margin-top: .2rem; flex: none; accent-color: var(--azul); }
.form-note { font-family: var(--font-mono); font-size: .72rem; letter-spacing: .06em; color: var(--muted); display: flex; align-items: center; gap: .5rem; }
.form-status { display: none; padding: 1rem 1.2rem; border-radius: 10px; font-weight: 600; margin-bottom: 1.2rem; }
.form-status.ok { display: block; background: #E7F5EC; color: #1E6B3E; border: 1px solid #BFE3CD; }
.form-status.err { display: block; background: #FBEAE7; color: #96291B; border: 1px solid #EFC7C0; }
/* Honeypot: hidden from humans, present for bots */
.hp-field { position: absolute !important; left: -9999px !important; top: -9999px !important; height: 1px; width: 1px; overflow: hidden; }

/* ---------- Legal pages ---------- */
.legal { max-width: 46rem; }
.legal h2 { font-size: 1.4rem; margin-top: 2.4rem; }
.legal p, .legal li { color: var(--ink-2); font-size: .98rem; }

/* ---------- FAQ ---------- */
details.faq {
  border: 1px solid var(--line); border-radius: 12px; background: #fff; margin-bottom: .8rem;
  padding: 0 1.3rem; transition: border-color .2s;
}
details.faq[open] { border-color: var(--azul); }
details.faq summary {
  cursor: pointer; font-weight: 700; padding: 1.1rem 0; list-style: none;
  display: flex; justify-content: space-between; align-items: center; gap: 1rem;
}
details.faq summary::-webkit-details-marker { display: none; }
details.faq summary::after { content: "+"; font-family: var(--font-mono); color: var(--azul); font-size: 1.2rem; }
details.faq[open] summary::after { content: "−"; }
details.faq p { color: var(--muted); padding-bottom: 1.1rem; margin: 0; }

/* ---------- Footer ---------- */
.site-footer { background: var(--ink); color: #A9B4C0; padding: 4rem 0 2rem; margin-top: 0; }
.footer-grid { display: grid; grid-template-columns: 1.4fr 1fr 1fr 1.2fr; gap: 2.5rem; padding-bottom: 3rem; border-bottom: 1px solid rgba(255,255,255,.1); }
.site-footer h4 { color: #fff; font-size: 1rem; margin-bottom: 1rem; }
.site-footer ul { list-style: none; margin: 0; padding: 0; display: grid; gap: .55rem; }
.site-footer a { color: #A9B4C0; font-size: .93rem; }
.site-footer a:hover { color: #fff; }
.footer-brand .brand-name { color: #fff; }
.footer-brand p { font-size: .92rem; margin-top: .8rem; }
.footer-coords { font-family: var(--font-mono); font-size: .7rem; letter-spacing: .12em; color: #6C7885; margin-top: 1rem; }
.footer-bottom {
  display: flex; justify-content: space-between; align-items: center; gap: 1rem; flex-wrap: wrap;
  padding-top: 1.6rem; font-size: .85rem; color: #6C7885;
}
.footer-bottom a { color: #A9B4C0; }

/* ---------- Reveal on scroll ---------- */
.reveal { opacity: 0; transform: translateY(22px); transition: opacity .7s var(--ease), transform .7s var(--ease); }
.reveal.in { opacity: 1; transform: none; }

/* ---------- Back to top ---------- */
.to-top {
  position: fixed; right: 1.2rem; bottom: 1.2rem; width: 46px; height: 46px;
  border-radius: 50%; background: var(--ink); color: #fff; border: 0; cursor: pointer;
  display: grid; place-items: center; opacity: 0; pointer-events: none; transition: opacity .3s;
  z-index: 90;
}
.to-top.show { opacity: 1; pointer-events: auto; }
.to-top:hover { background: var(--azul); }

/* ============================================================
   Responsive
   ============================================================ */
@media (max-width: 1024px) {
  .grid-4 { grid-template-columns: repeat(2, 1fr); }
  .stats { grid-template-columns: repeat(2, 1fr); row-gap: 2rem; }
  .hero-grid { grid-template-columns: 1fr; }
  .hero-card { max-width: 560px; }
  .footer-grid { grid-template-columns: 1fr 1fr; }
}

@media (max-width: 860px) {
  .office-status { display: none; }
  .nav-toggle { display: block; }
  .main-nav {
    position: fixed; inset: 61px 0 auto 0; background: var(--paper);
    border-bottom: 1px solid var(--line); padding: 1rem 1.25rem 1.5rem;
    transform: translateY(-120%); transition: transform .3s var(--ease);
    box-shadow: var(--shadow); z-index: 99;
  }
  .nav-open .main-nav { transform: none; }
  .main-nav ul { flex-direction: column; gap: .2rem; }
  .main-nav a { display: block; padding: .8rem 0; font-size: 1.05rem; border-bottom: 1px solid var(--line); }
  .grid-3, .values { grid-template-columns: 1fr; }
  .grid-2, .contact-grid, .service-row { grid-template-columns: 1fr; }
  .service-row { gap: 1.2rem; }
  .section { padding: 3.8rem 0; }
  .hero { padding-top: 3.5rem; }
  .form-grid { grid-template-columns: 1fr; }
}

@media (max-width: 560px) {
  body { font-size: 16px; }
  .grid-4, .stats, .footer-grid { grid-template-columns: 1fr; }
  .hero-actions .btn { width: 100%; }
  .horizon .sun { width: 56px; height: 56px; left: 8%; }
  .cta-band { text-align: left; }
}

/* ---------- Reduced motion ---------- */
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { animation-duration: .01ms !important; transition-duration: .01ms !important; }
  .reveal { opacity: 1; transform: none; }
}

/* ---------- Print ---------- */
@media print {
  .site-header, .site-footer, .to-top, .cta-band, .hero-actions { display: none; }
  body { background: #fff; }
}