/* ============================================
   MSM ANODIZADOS — Design System
   Tokens
   ============================================ */
:root {
  /* Color */
  --graphite: #232323;
  --graphite-soft: #2f2f2f;
  --ink: #181818;
  --paper: #f6f5f2;
  --paper-warm: #ece9e2;
  --red: #c8102e;
  --red-deep: #8c0b20;
  --steel: #1e5fa8;
  --jade: #2f8f3c;
  --silver: #aeb0b4;
  --copper: #c2611f;
  --line: rgba(255,255,255,0.12);
  --line-dark: rgba(0,0,0,0.1);

  /* Type */
  --font-display: 'Archivo', 'Arial Narrow', sans-serif;
  --font-body: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
  --font-mono: 'IBM Plex Mono', monospace;

  /* Scale */
  --space-1: 0.5rem;
  --space-2: 1rem;
  --space-3: 1.5rem;
  --space-4: 2.5rem;
  --space-5: 4rem;
  --space-6: 6rem;
  --space-7: 9rem;

  --radius: 2px;
}

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

html { scroll-behavior: smooth; }

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
    scroll-behavior: auto !important;
  }
}

body {
  font-family: var(--font-body);
  background: var(--paper);
  color: var(--ink);
  line-height: 1.55;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

img { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; }
ul { list-style: none; }

.container {
  max-width: 1240px;
  margin: 0 auto;
  padding: 0 var(--space-3);
}

@media (max-width: 640px) {
  .container { padding: 0 var(--space-2); }
}

/* Focus visibility */
a:focus-visible, button:focus-visible, input:focus-visible, textarea:focus-visible, select:focus-visible {
  outline: 2px solid var(--red);
  outline-offset: 3px;
}

/* ============================================
   Typography
   ============================================ */
.eyebrow {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--red);
  display: flex;
  align-items: center;
  gap: 0.6em;
}
.eyebrow::before {
  content: '';
  width: 22px;
  height: 2px;
  background: var(--red);
  display: inline-block;
}

h1, h2, h3, h4 {
  font-family: var(--font-display);
  font-weight: 800;
  text-transform: uppercase;
  letter-spacing: -0.01em;
  line-height: 0.98;
}

h2 {
  font-size: clamp(2.2rem, 4.5vw, 3.6rem);
  font-stretch: condensed;
}

h3 {
  font-size: 1.3rem;
  letter-spacing: 0.01em;
}

p { color: #4a4a48; }

.section-head {
  max-width: 640px;
  margin-bottom: var(--space-5);
}
.section-head h2 { color: var(--ink); margin-top: var(--space-1); }
.section-head p { margin-top: var(--space-2); font-size: 1.05rem; }

.section-head.on-dark h2 { color: var(--paper); }
.section-head.on-dark p { color: #c7c6c2; }

section { padding: var(--space-6) 0; position: relative; }
@media (max-width: 720px) {
  section { padding: var(--space-5) 0; }
}

/* ============================================
   Buttons
   ============================================ */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 0.6em;
  font-family: var(--font-mono);
  font-size: 0.85rem;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  padding: 0.95em 1.6em;
  border-radius: var(--radius);
  border: 1.5px solid transparent;
  cursor: pointer;
  transition: transform 0.18s ease, background 0.18s ease, border-color 0.18s ease, color .18s ease;
  white-space: nowrap;
}
.btn:hover { transform: translateY(-2px); }

.btn-primary {
  background: var(--red);
  color: #fff;
}
.btn-primary:hover { background: var(--red-deep); }

.btn-outline {
  background: transparent;
  border-color: var(--ink);
  color: var(--ink);
}
.btn-outline:hover { background: var(--ink); color: var(--paper); }

.btn-outline.on-dark {
  border-color: var(--paper);
  color: var(--paper);
}
.btn-outline.on-dark:hover { background: var(--paper); color: var(--ink); }

.btn-whatsapp {
  background: #25D366;
  color: #08321b;
}
.btn-whatsapp:hover { background: #1ebc59; }

/* ============================================
   Header / Nav
   ============================================ */
.site-header {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 100;
  background: rgba(24,24,24,0.92);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--line);
  transition: transform .3s ease;
}
.site-header.hide { transform: translateY(-100%); }

.nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0.85rem 0;
}

.nav-logo img { height: 48px; width: auto; }

.nav-links {
  display: flex;
  gap: var(--space-4);
  align-items: center;
}
.nav-links a {
  font-family: var(--font-mono);
  font-size: 0.8rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: #d8d7d2;
  position: relative;
  padding: 0.3em 0;
}
.nav-links a::after {
  content: '';
  position: absolute;
  bottom: -2px; left: 0;
  width: 0; height: 2px;
  background: var(--red);
  transition: width .2s ease;
}
.nav-links a:hover::after { width: 100%; }
.nav-links a:hover { color: #fff; }

.nav-cta { display: flex; gap: var(--space-2); align-items: center; }

.nav-toggle {
  display: none;
  background: none;
  border: none;
  color: var(--paper);
  font-size: 1.6rem;
  cursor: pointer;
}

@media (max-width: 880px) {
  .nav-links { display: none; }
  .nav-toggle { display: block; }
  .nav-cta .btn-outline { display: none; }
}

/* Mobile menu */
.mobile-menu {
  position: fixed;
  inset: 0;
  background: var(--ink);
  z-index: 99;
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  gap: var(--space-3);
  transform: translateY(-100%);
  transition: transform .35s ease;
}
.mobile-menu.open { transform: translateY(0); }
.mobile-menu a {
  font-family: var(--font-display);
  font-size: 1.8rem;
  text-transform: uppercase;
  color: var(--paper);
}

/* ============================================
   Hero
   ============================================ */
.hero {
  min-height: 100svh;
  display: flex;
  align-items: center;
  background: var(--ink);
  color: var(--paper);
  position: relative;
  overflow: hidden;
  padding-top: 80px;
}

.hero-brushed {
  position: absolute;
  inset: 0;
  opacity: 0.5;
  background:
    repeating-linear-gradient(100deg, rgba(255,255,255,0.025) 0px, rgba(255,255,255,0.025) 1px, transparent 1px, transparent 3px),
    linear-gradient(135deg, #1b1b1b 0%, #242424 45%, #1a1a1a 100%);
}

.hero-grid {
  position: relative;
  z-index: 2;
  display: grid;
  grid-template-columns: 1.15fr 0.85fr;
  gap: var(--space-5);
  align-items: center;
  padding: var(--space-6) 0;
}

@media (max-width: 900px) {
  .hero-grid { grid-template-columns: 1fr; gap: var(--space-4); }
}

.hero-eyebrow {
  font-family: var(--font-mono);
  font-size: 0.8rem;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--copper);
  margin-bottom: var(--space-2);
}

.hero h1 {
  font-size: clamp(2.6rem, 6vw, 5rem);
  color: #fff;
}
.hero h1 .accent { color: var(--red); }

.hero-sub {
  margin-top: var(--space-3);
  font-size: 1.15rem;
  max-width: 46ch;
  color: #c9c8c3;
}

.hero-ctas {
  display: flex;
  gap: var(--space-2);
  margin-top: var(--space-4);
  flex-wrap: wrap;
}

.hero-meta {
  margin-top: var(--space-5);
  display: flex;
  gap: var(--space-4);
  flex-wrap: wrap;
}
.hero-meta div {
  font-family: var(--font-mono);
}
.hero-meta .num {
  font-family: var(--font-display);
  font-size: 1.8rem;
  color: #fff;
  display: block;
}
.hero-meta .label {
  font-size: 0.72rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: #8c8b87;
}

/* Hero visual: color-chip swatches stack, like real anodizing color cards */
.hero-visual {
  position: relative;
  height: 460px;
}
.chip-stack {
  position: absolute;
  inset: 0;
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 10px;
}
.chip {
  border-radius: 3px;
  position: relative;
  overflow: hidden;
  box-shadow: 0 18px 40px -16px rgba(0,0,0,0.6);
  transform: translateY(0);
  transition: transform .4s cubic-bezier(.2,.8,.2,1);
}
.chip:hover { transform: translateY(-8px); }
.chip::after {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, rgba(255,255,255,0.35), transparent 40%, rgba(0,0,0,0.25));
  mix-blend-mode: overlay;
}
.chip .chip-label {
  position: absolute;
  left: 10px; bottom: 10px;
  font-family: var(--font-mono);
  font-size: 0.65rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: rgba(255,255,255,0.92);
  text-shadow: 0 1px 4px rgba(0,0,0,0.5);
}
.chip-1 { background: linear-gradient(150deg, #d4d6d8, #8e9094); grid-row: span 2; }
.chip-2 { background: linear-gradient(150deg, #e2462f, #8c0b20); }
.chip-3 { background: linear-gradient(150deg, #3a7fd8, #163f70); grid-row: span 2; }
.chip-4 { background: linear-gradient(150deg, #4cb85c, #1f5d28); }
.chip-5 { background: linear-gradient(150deg, #2b2b2b, #050505); }
.chip-6 { background: linear-gradient(150deg, #e08a3c, #8c4313); grid-row: span 2; }

@media (max-width: 900px) {
  .hero-visual { height: 320px; }
}

/* ============================================
   Logo strip (industries quick mention)
   ============================================ */
.strip {
  background: var(--paper-warm);
  border-top: 1px solid var(--line-dark);
  border-bottom: 1px solid var(--line-dark);
  padding: var(--space-3) 0;
}
.strip-row {
  display: flex;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: var(--space-3);
  font-family: var(--font-mono);
  font-size: 0.78rem;
  letter-spacing: 0.07em;
  text-transform: uppercase;
  color: #6b6a66;
}
.strip-row span { white-space: nowrap; }

/* ============================================
   Services
   ============================================ */
.services-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1px;
  background: var(--line-dark);
  border: 1px solid var(--line-dark);
}
@media (max-width: 860px) {
  .services-grid { grid-template-columns: 1fr; }
}

.service-card {
  background: var(--paper);
  padding: var(--space-4);
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
  transition: background .25s ease;
}
.service-card:hover { background: #fff; }

.service-num {
  font-family: var(--font-mono);
  font-size: 0.8rem;
  color: var(--silver);
}

.service-icon {
  width: 52px; height: 52px;
  margin: var(--space-1) 0;
}

.service-card h3 { color: var(--ink); }
.service-card .tag {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--red);
}
.service-card p { font-size: 0.95rem; }

.service-card ul { margin-top: var(--space-1); display: flex; flex-direction: column; gap: 0.4em; }
.service-card li {
  font-size: 0.88rem;
  color: #4a4a48;
  padding-left: 1.1em;
  position: relative;
}
.service-card li::before {
  content: '';
  position: absolute;
  left: 0; top: 0.55em;
  width: 5px; height: 5px;
  background: var(--red);
}

/* ============================================
   Industries
   ============================================ */
.industries {
  background: var(--ink);
  color: var(--paper);
}
.industries-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-3);
}
@media (max-width: 860px) {
  .industries-grid { grid-template-columns: 1fr; }
}
.industry-card {
  border: 1px solid var(--line);
  padding: var(--space-4);
  position: relative;
  transition: border-color .25s ease, transform .25s ease;
}
.industry-card:hover { border-color: var(--red); transform: translateY(-4px); }
.industry-card .ind-icon { width: 44px; height: 44px; margin-bottom: var(--space-2); }
.industry-card h3 { color: #fff; margin-bottom: 0.5em; }
.industry-card p { color: #b8b7b2; font-size: 0.92rem; }
.industry-card .examples {
  margin-top: var(--space-2);
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.04em;
  color: var(--copper);
  text-transform: uppercase;
}

/* ============================================
   Why MSM — process strip
   ============================================ */
.why-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: var(--space-3);
}
@media (max-width: 980px) {
  .why-grid { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 560px) {
  .why-grid { grid-template-columns: 1fr; }
}
.why-item {
  padding-top: var(--space-3);
  border-top: 2px solid var(--ink);
}
.why-item .why-num {
  font-family: var(--font-display);
  font-size: 2.4rem;
  color: var(--silver);
  display: block;
  line-height: 1;
}
.why-item h3 { margin-top: var(--space-1); color: var(--ink); font-size: 1.05rem; }
.why-item p { margin-top: 0.5em; font-size: 0.92rem; }

/* ============================================
   Color gallery — the chameleon's moment
   ============================================ */
.gallery {
  background: var(--paper-warm);
}
.gallery-swatches {
  display: grid;
  grid-template-columns: repeat(6, 1fr);
  gap: 12px;
  margin-top: var(--space-4);
}
@media (max-width: 760px) {
  .gallery-swatches { grid-template-columns: repeat(3, 1fr); }
}
.swatch {
  aspect-ratio: 1;
  border-radius: 3px;
  position: relative;
  overflow: hidden;
  cursor: default;
  box-shadow: 0 10px 24px -12px rgba(0,0,0,0.35);
  transition: transform .3s ease;
}
.swatch:hover { transform: scale(1.04); }
.swatch::after {
  content: '';
  position: absolute; inset: 0;
  background: linear-gradient(140deg, rgba(255,255,255,0.4), transparent 35%, rgba(0,0,0,0.3));
  mix-blend-mode: overlay;
}
.swatch span {
  position: absolute;
  left: 8px; bottom: 8px;
  font-family: var(--font-mono);
  font-size: 0.62rem;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  color: rgba(255,255,255,0.95);
  text-shadow: 0 1px 3px rgba(0,0,0,0.5);
}
.sw-natural { background: linear-gradient(150deg, #dcdedf, #9a9c9f); }
.sw-rojo { background: linear-gradient(150deg, #e2462f, #8c0b20); }
.sw-azul { background: linear-gradient(150deg, #3a7fd8, #163f70); }
.sw-verde { background: linear-gradient(150deg, #4cb85c, #1f5d28); }
.sw-negro { background: linear-gradient(150deg, #3a3a3a, #0a0a0a); }
.sw-cobre { background: linear-gradient(150deg, #e08a3c, #8c4313); }
.sw-dorado { background: linear-gradient(150deg, #e8c468, #9c7a23); }
.sw-violeta { background: linear-gradient(150deg, #8b5fbf, #4a2d6e); }
.sw-rosa { background: linear-gradient(150deg, #e07ba5, #9c2f57); }
.sw-gris { background: linear-gradient(150deg, #707477, #2e3133); }
.sw-cian { background: linear-gradient(150deg, #3fc7c7, #166b6b); }
.sw-naranja { background: linear-gradient(150deg, #f0883c, #ad4a12); }

.gallery-note {
  margin-top: var(--space-3);
  font-size: 0.85rem;
  color: #6b6a66;
  font-family: var(--font-mono);
}

/* ============================================
   Contact
   ============================================ */
.contact {
  background: var(--ink);
  color: var(--paper);
}
.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-5);
}
@media (max-width: 880px) {
  .contact-grid { grid-template-columns: 1fr; gap: var(--space-4); }
}

.contact-info-list { margin-top: var(--space-4); display: flex; flex-direction: column; gap: var(--space-3); }
.contact-info-item { display: flex; gap: var(--space-2); align-items: flex-start; }
.contact-info-item .ci-icon { width: 22px; height: 22px; flex-shrink: 0; margin-top: 2px; }
.contact-info-item .ci-label {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--copper);
  display: block;
  margin-bottom: 0.2em;
}
.contact-info-item a, .contact-info-item p { color: #e8e7e3; font-size: 1rem; }

.contact-form {
  background: var(--graphite);
  border: 1px solid var(--line);
  padding: var(--space-4);
}
.form-row { margin-bottom: var(--space-2); }
.form-row label {
  display: block;
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.07em;
  text-transform: uppercase;
  color: #b8b7b2;
  margin-bottom: 0.5em;
}
.form-row input, .form-row textarea, .form-row select {
  width: 100%;
  background: var(--ink);
  border: 1px solid var(--line);
  color: var(--paper);
  padding: 0.85em 1em;
  font-family: var(--font-body);
  font-size: 0.95rem;
  border-radius: var(--radius);
}
.form-row input:focus, .form-row textarea:focus, .form-row select:focus {
  border-color: var(--red);
  outline: none;
}
.form-row textarea { resize: vertical; min-height: 110px; }
.form-submit { width: 100%; justify-content: center; margin-top: var(--space-1); border: none; }
.form-note { font-size: 0.78rem; color: #8c8b87; margin-top: var(--space-2); }
.form-status { font-size: 0.85rem; margin-top: var(--space-2); font-family: var(--font-mono); display: none; }
.form-status.success { color: #4cb85c; display: block; }
.form-status.error { color: var(--red); display: block; }

/* ============================================
   Footer
   ============================================ */
.site-footer {
  background: var(--graphite);
  color: #c7c6c2;
  padding: var(--space-4) 0 var(--space-3);
  border-top: 1px solid var(--line);
}
.footer-grid {
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: var(--space-3);
}
.footer-logo img { height: 34px; }
.footer-meta { font-family: var(--font-mono); font-size: 0.78rem; color: #8c8b87; }
.footer-links { display: flex; gap: var(--space-3); }
.footer-links a { font-family: var(--font-mono); font-size: 0.78rem; text-transform: uppercase; letter-spacing: 0.05em; color: #c7c6c2; }
.footer-links a:hover { color: var(--red); }
.footer-bottom {
  margin-top: var(--space-3);
  padding-top: var(--space-2);
  border-top: 1px solid var(--line);
  font-family: var(--font-mono);
  font-size: 0.72rem;
  color: #6b6a66;
  display: flex;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: var(--space-1);
}

/* ============================================
   WhatsApp floating button
   ============================================ */
.wa-float {
  position: fixed;
  bottom: 22px;
  right: 22px;
  z-index: 90;
  width: 58px;
  height: 58px;
  border-radius: 50%;
  background: #25D366;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 8px 24px rgba(0,0,0,0.3);
  transition: transform .2s ease;
}
.wa-float:hover { transform: scale(1.08); }
.wa-float svg { width: 30px; height: 30px; }

/* ============================================
   Scroll reveal
   ============================================ */
.reveal {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity .7s ease, transform .7s ease;
}
.reveal.visible {
  opacity: 1;
  transform: translateY(0);
}