/* ============================================================
   0. CSS CUSTOM PROPERTIES (design tokens)
   ============================================================ */

:root {
  /* Brand colors — only these 5, no exceptions */
  --ink:      #1A1A1A;
  --slate:    #2C2C2C;
  --concrete: #F5F5F5;
  --paper:    #FFFFFF;
  --rust:     #C95A0F;

  /* Supporting grays (derived from brand, not extra colors) */
  --muted:    #6B6B6B;

  /* Typography */
  --font-main: 'Archivo', Helvetica, Arial, sans-serif;
  --font-mono: 'JetBrains Mono', 'Courier New', monospace;

  /* Spacing */
  --pad-v: 72px;
  --pad-h: 48px;

  /* Border — used everywhere, never type it manually */
  --border: 1px solid var(--ink);

  /* Transitions */
  --transition: 200ms ease;
}


/* ============================================================
   1. RESET & BASE
   ============================================================ */

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

html {
  scroll-behavior: smooth;
  /* Offset anchor links so fixed header doesn't cover target sections */
  scroll-padding-top: 72px;
}

body {
  font-family: var(--font-main);
  font-size: 15px;
  line-height: 1.55;
  color: var(--ink);
  background: var(--paper);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

img {
  display: block;
  max-width: 100%;
}

a {
  color: inherit;
  text-decoration: none;
}

button {
  cursor: pointer;
  border: none;
  background: none;
  font: inherit;
}

ul, ol {
  list-style: none;
}


/* ============================================================
   2. TYPOGRAPHY UTILITIES
   ============================================================ */

/* Monospace label style — used for metadata, nav links, tags */
.label-mono {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 1px;
  text-transform: uppercase;
  line-height: 1.4;
}

/* Section headings: "SERVICES", "ABOUT", etc. */
.section-label {
  font-family: var(--font-main);
  font-weight: 800;
  font-size: 14px;
  letter-spacing: 3px;
  text-transform: uppercase;
}

/* Rust accent on emphasized hero text */
em {
  font-style: normal;
  color: var(--rust);
}


/* ============================================================
   3. HEADER & NAV
   ============================================================ */

.site-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  background: var(--paper);
  border-bottom: var(--border);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 var(--pad-h);
  height: 72px;
}

.nav-logo img {
  height: 36px;
  width: auto;
}

.nav-links {
  display: flex;
  gap: 40px;
}

.nav-links a {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 1px;
  text-transform: uppercase;
  transition: color var(--transition);
}

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

/* Language toggle button: EN / ES */
.header-controls {
  display: flex;
  align-items: center;
  gap: 16px;
}

.lang-toggle {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 1px;
  text-transform: uppercase;
  color: var(--ink);
  border: var(--border);
  padding: 6px 12px;
  line-height: 1;
  transition: color var(--transition), border-color var(--transition);
}

.lang-toggle:hover {
  color: var(--rust);
  border-color: var(--rust);
}

/* Hamburger button — 3 horizontal bars */
.nav-toggle {
  display: none;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  width: 28px;
  height: 28px;
  padding: 0;
}

.nav-toggle span {
  display: block;
  height: 2px;
  background: var(--ink);
  transition: transform var(--transition), opacity var(--transition);
  transform-origin: center;
}

/* Mobile dropdown menu — hidden by default */
.mobile-menu {
  display: none;
  flex-direction: column;
  border-top: var(--border);
  background: var(--paper);
}

.mobile-menu a {
  display: block;
  padding: 20px var(--pad-h);
  border-bottom: var(--border);
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 1px;
  text-transform: uppercase;
  transition: color var(--transition);
}

.mobile-menu a:hover {
  color: var(--rust);
}

/* JS adds .is-open to <header> when hamburger is clicked */
.site-header.is-open .mobile-menu {
  display: flex;
}

/* Animate hamburger into an X when menu is open */
.site-header.is-open .nav-toggle span:nth-child(1) {
  transform: translateY(7px) rotate(45deg);
}

.site-header.is-open .nav-toggle span:nth-child(2) {
  opacity: 0;
  transform: scaleX(0);
}

.site-header.is-open .nav-toggle span:nth-child(3) {
  transform: translateY(-7px) rotate(-45deg);
}


/* ============================================================
   4. HERO
   ============================================================ */

.hero {
  display: grid;
  grid-template-columns: 1fr 380px;
  min-height: 100vh;
  align-items: center;
  border-bottom: var(--border);
  /* Top padding accounts for the 72px fixed header */
  padding: calc(72px + var(--pad-v)) var(--pad-h) var(--pad-v);
}

.hero-inner {
  padding-right: 64px;
}

.hero-label {
  color: var(--muted);
  margin-bottom: 32px;
}

.hero-heading {
  font-weight: 900;
  font-size: 84px;
  line-height: 0.92;
  letter-spacing: -2.5px;
  margin-bottom: 32px;
}

.hero-sub {
  max-width: 480px;
  color: var(--slate);
  margin-bottom: 48px;
}

/* CTA button — also used on the contact form */
.btn-primary {
  display: inline-block;
  background: var(--ink);
  color: var(--paper);
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 1.5px;
  text-transform: uppercase;
  padding: 16px 32px;
  border: var(--border);
  transition: background var(--transition), border-color var(--transition), color var(--transition);
}

.btn-primary:hover {
  background: var(--rust);
  border-color: var(--rust);
}

/* Right-column specification block */
.hero-spec {
  border-left: var(--border);
  padding-left: 48px;
  display: flex;
  flex-direction: column;
  gap: 0;
  align-self: stretch;
  justify-content: flex-end;
  padding-bottom: var(--pad-v);
}

.spec-item {
  display: flex;
  flex-direction: column;
  gap: 6px;
  border-top: var(--border);
  padding: 20px 0;
}

.spec-label {
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: 1.5px;
  text-transform: uppercase;
  color: var(--muted);
}

.spec-value {
  font-family: var(--font-main);
  font-weight: 700;
  font-size: 13px;
  letter-spacing: 0.3px;
}


/* ============================================================
   5. SERVICES
   ============================================================ */

.services {
  padding: var(--pad-v) var(--pad-h);
  border-bottom: var(--border);
}

.section-head {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  border-bottom: var(--border);
  padding-bottom: 20px;
  margin-bottom: 0;
}

.section-count {
  color: var(--muted);
}

/* Single-column list — each card is full width */
.services-grid {
  display: grid;
  grid-template-columns: 1fr;
  border-left: var(--border);
  border-top: var(--border);
}

.service-card {
  display: flex;
  flex-direction: row;
  align-items: flex-start;
  gap: 32px;
  padding: 40px;
  border-right: var(--border);
  border-bottom: var(--border);
}

.service-anim {
  flex: 0 0 560px;
  width: 560px;
  min-height: 360px;
  border: var(--border);
  overflow: hidden;
  background: var(--concrete);
  display: flex;
  align-items: center;
}

.service-anim svg {
  width: 100%;
  height: auto;
  display: block;
}

.service-content {
  flex: 1 1 0;
  min-width: 0;
}

.card-num {
  display: block;
  color: var(--rust);
  margin-bottom: 24px;
}

.card-title {
  font-weight: 800;
  font-size: 22px;
  letter-spacing: -0.5px;
  margin-bottom: 16px;
}

.card-body {
  font-size: 14px;
  line-height: 1.6;
  color: var(--slate);
  margin-bottom: 24px;
}

.card-tag {
  color: var(--muted);
  font-size: 10px;
}


/* ============================================================
   6. ABOUT
   ============================================================ */

.about {
  padding: var(--pad-v) var(--pad-h);
  border-bottom: var(--border);
  background: var(--concrete);
}

.about-inner {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 80px;
  margin-top: 48px;
}

.about-lead {
  font-size: 20px;
  font-weight: 700;
  line-height: 1.4;
  letter-spacing: -0.3px;
  margin-bottom: 24px;
}

.about-text p:not(.about-lead) {
  color: var(--slate);
}

.about-pillars {
  display: flex;
  flex-direction: column;
}

.pillar {
  border-top: var(--border);
  padding: 24px 0;
}

.pillar:last-child {
  border-bottom: var(--border);
}

.pillar-label {
  display: block;
  color: var(--rust);
  margin-bottom: 10px;
}

.pillar p {
  font-size: 14px;
  color: var(--slate);
}


/* ============================================================
   7. CONTACT & FORM
   ============================================================ */

.contact {
  padding: var(--pad-v) var(--pad-h);
  border-bottom: var(--border);
}

.contact .section-head {
  margin-bottom: 48px;
}

.contact-inner {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 80px;
  align-items: start;
}

.contact-info .about-lead {
  font-size: 18px;
}

.contact-email {
  display: inline-block;
  margin-top: 24px;
  color: var(--rust);
  font-size: 12px;
  letter-spacing: 0.5px;
  transition: color var(--transition);
}

.contact-email:hover {
  color: var(--ink);
}

/* Form layout */
.contact-form {
  display: flex;
  flex-direction: column;
}

.form-group {
  display: flex;
  flex-direction: column;
  border-top: var(--border);
  padding: 16px 0;
}

.form-group label {
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: 1.5px;
  text-transform: uppercase;
  color: var(--muted);
  margin-bottom: 8px;
}

.form-group input,
.form-group textarea {
  border: none;
  outline: none;
  font-family: var(--font-main);
  font-size: 15px;
  background: transparent;
  color: var(--ink);
  padding: 0;
  resize: vertical;
}

.form-group input::placeholder,
.form-group textarea::placeholder {
  color: #AAAAAA;
}

/* Rust bottom line on focus — brutalist, no rounded rings */
.form-group input:focus,
.form-group textarea:focus {
  border-bottom: 2px solid var(--rust);
}

.form-group:last-of-type {
  border-bottom: var(--border);
}

.contact-form .btn-primary {
  align-self: flex-start;
  margin-top: 24px;
}

.contact-form .btn-primary:disabled {
  opacity: 0.5;
  cursor: not-allowed;
}

.form-success {
  margin-top: 16px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 1px;
  text-transform: uppercase;
  color: #1a6b1a;
}

.form-error {
  margin-top: 16px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 1px;
  text-transform: uppercase;
  color: var(--rust);
}


/* ============================================================
   8. FOOTER
   ============================================================ */

.site-footer {
  background: var(--slate);
  border-top: var(--border);
}

.footer-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 40px var(--pad-h);
  gap: 32px;
}

.footer-logo img {
  height: 32px;
  width: auto;
}

.footer-copy {
  color: #9A9A9A;
}


/* ============================================================
   9a. RESPONSIVE (max-width: 1200px — shrink animation at tablet range)
   ============================================================ */

@media (max-width: 1200px) {
  .service-anim {
    flex: 0 0 400px;
    width: 400px;
    min-height: 260px;
  }
}

/* ============================================================
   9. RESPONSIVE (max-width: 900px)
   ============================================================ */

@media (max-width: 900px) {
  :root {
    --pad-v: 48px;
    --pad-h: 24px;
  }

  /* Show hamburger, hide desktop nav */
  .nav-toggle {
    display: flex;
  }

  .nav-links {
    display: none;
  }

  /* Hero: single column, smaller heading */
  .hero {
    grid-template-columns: 1fr;
    min-height: auto;
    padding-top: calc(72px + 48px);
  }

  .hero-inner {
    padding-right: 0;
    margin-bottom: 48px;
  }

  .hero-heading {
    font-size: 54px;
    letter-spacing: -1.5px;
  }

  /* Spec block: horizontal row on mobile */
  .hero-spec {
    border-left: none;
    border-top: var(--border);
    padding-left: 0;
    padding-top: 32px;
    padding-bottom: 0;
    flex-direction: row;
    flex-wrap: wrap;
    gap: 0;
  }

  .spec-item {
    min-width: 48%;
    padding: 16px 0;
  }

  /* Services: single column */
  .services-grid {
    grid-template-columns: 1fr;
  }

  .service-card {
    flex-direction: column;
    gap: 24px;
  }

  .service-anim {
    width: 100%;
    flex: 0 0 auto;
  }

  /* About: single column */
  .about-inner {
    grid-template-columns: 1fr;
    gap: 48px;
  }

  /* Contact: single column — form below info */
  .contact-inner {
    grid-template-columns: 1fr;
    gap: 48px;
  }

  /* Footer: stack vertically */
  .footer-inner {
    flex-direction: column;
    align-items: flex-start;
    gap: 24px;
  }
}