/* ==========================================================================
   Grupo LAMD — Ingeniería y Construcción Industrial
   ========================================================================== */

@font-face {
  font-family: 'Oswald';
  src: url('lib/fonts/oswald-var.woff2') format('woff2-variations'), url('lib/fonts/oswald-var.woff2') format('woff2');
  font-weight: 400 700;
  font-style: normal;
  font-display: swap;
}

@font-face {
  font-family: 'Inter';
  src: url('lib/fonts/inter-var.woff2') format('woff2-variations'), url('lib/fonts/inter-var.woff2') format('woff2');
  font-weight: 100 900;
  font-style: normal;
  font-display: swap;
}

:root {
  --c-bg: #c7cbcc;
  --c-surface: #ffffff;
  --c-surface-2: #eceeee;
  --c-border: rgba(93, 94, 96, 0.32);
  --c-border-strong: rgba(93, 94, 96, 0.55);
  --c-orange: #f2911f;
  --c-orange-light: #ffc552;
  --c-orange-dark: #c1620b;
  --c-orange-dim: rgba(242, 145, 31, 0.12);
  --c-text: #1b1c1e;
  --c-text-dim: #45474a;
  --c-text-faint: #63666a;
  --c-steel: #5d5e60;
  --shadow-card: 0 2px 10px rgba(27, 28, 30, 0.07), 0 10px 28px rgba(27, 28, 30, 0.07);

  --font-display: 'Oswald', 'Arial Narrow', Arial, sans-serif;
  --font-body: 'Inter', -apple-system, 'Segoe UI', Roboto, sans-serif;

  --container: 1240px;
  --gutter: clamp(20px, 5vw, 64px);
  --radius: 4px;
}

* { box-sizing: border-box; }

html {
  scroll-behavior: smooth;
  scroll-padding-top: 84px;
}

body {
  margin: 0;
  background: var(--c-bg) url('assets/img/bg-texture.webp') repeat;
  background-size: 800px 800px;
  color: var(--c-text);
  font-family: var(--font-body);
  font-size: 16px;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

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

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

ul { margin: 0; padding: 0; list-style: none; }

h1, h2, h3, h4 {
  font-family: var(--font-display);
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.01em;
  margin: 0;
  color: var(--c-text);
}

p { margin: 0; }

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

section { position: relative; }

/* -------------------- utility -------------------- */

.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-family: var(--font-display);
  font-size: 13px;
  font-weight: 600;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--c-orange-dark);
  margin-bottom: 18px;
  background: var(--c-surface);
  padding: 8px 14px 8px 10px;
  border-radius: 3px;
  box-shadow: var(--shadow-card);
}

.eyebrow::before {
  content: '';
  width: 20px;
  height: 2px;
  background: var(--c-orange-dark);
  display: inline-block;
  flex-shrink: 0;
}

.hero-content .eyebrow {
  background: none;
  box-shadow: none;
  padding: 0;
}

.section-head {
  max-width: 720px;
  margin-bottom: 56px;
}

.section-head h2 {
  font-size: clamp(28px, 4vw, 42px);
  line-height: 1.15;
}

.section-head p {
  margin-top: 18px;
  color: var(--c-text-dim);
  font-size: 17px;
  max-width: 620px;
}

.section-tag {
  position: absolute;
  top: 40px;
  right: var(--gutter);
  font-family: var(--font-display);
  font-size: 13px;
  letter-spacing: 0.14em;
  color: var(--c-text-faint);
  text-transform: uppercase;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 15px;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  padding: 16px 30px;
  border-radius: var(--radius);
  border: 1px solid transparent;
  cursor: pointer;
  transition: transform 0.2s ease, background 0.2s ease, border-color 0.2s ease, color 0.2s ease;
  white-space: nowrap;
}

.btn:active { transform: translateY(1px); }

.btn-primary {
  background: var(--c-orange);
  color: #14100c;
}
.btn-primary:hover { background: var(--c-orange-light); }

.btn-outline {
  background: transparent;
  border-color: var(--c-border-strong);
  color: var(--c-text);
}
.btn-outline:hover { border-color: var(--c-orange-dark); color: var(--c-orange-dark); }

.btn-sm { padding: 12px 20px; font-size: 13px; }

/* reveal-on-scroll (defensive: visible by default, JS only enhances) */
.reveal {
  opacity: 1;
  transform: none;
  transition: opacity 0.7s ease, transform 0.7s ease;
}
.js-ready .reveal {
  opacity: 0;
  transform: translateY(28px);
}
.js-ready .reveal.is-visible {
  opacity: 1;
  transform: none;
}
.reveal[data-split] { opacity: 1; transform: none; }

/* ==========================================================================
   Header
   ========================================================================== */

.site-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  background: rgba(255, 255, 255, 0.7);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  border-bottom: 1px solid transparent;
  transition: background 0.3s ease, border-color 0.3s ease, padding 0.3s ease;
  padding: 22px 0;
}

.site-header.is-scrolled {
  background: rgba(255, 255, 255, 0.92);
  border-bottom-color: var(--c-border);
  padding: 14px 0;
  box-shadow: 0 4px 20px rgba(27, 28, 30, 0.08);
}

.site-header .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
}

.logo {
  display: flex;
  align-items: center;
  gap: 14px;
  flex-shrink: 0;
}

.logo-icon {
  height: 90px;
  width: auto;
  display: block;
  flex-shrink: 0;
  transition: height 0.3s ease;
}

.site-header.is-scrolled .logo-icon {
  height: 68px;
}

.logo-text {
  display: flex;
  flex-direction: column;
  line-height: 1.2;
}

.logo-name {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 22px;
  letter-spacing: 0.02em;
  text-transform: uppercase;
  color: #2a2a2a;
}

.logo-tagline {
  font-family: var(--font-body);
  font-size: 11px;
  letter-spacing: 0.03em;
  color: var(--c-steel);
  margin-top: 3px;
}

.footer-brand .logo-icon { height: 56px; }
.footer-brand .logo-name { font-size: 20px; }

.main-nav {
  display: flex;
  align-items: center;
  gap: 26px;
  flex-shrink: 0;
}

.main-nav a {
  font-size: 14px;
  font-weight: 500;
  color: var(--c-text-dim);
  transition: color 0.2s ease;
  position: relative;
  white-space: nowrap;
}

.main-nav a:hover { color: var(--c-text); }

.header-actions {
  display: flex;
  align-items: center;
  gap: 18px;
}

.header-phone {
  display: flex;
  flex-direction: column;
  font-size: 13px;
  color: var(--c-text-dim);
  text-align: right;
  line-height: 1.3;
}
.header-phone strong { color: var(--c-text); font-size: 14px; letter-spacing: 0.02em; }

.nav-toggle {
  display: none;
  width: 40px;
  height: 40px;
  border: 1px solid var(--c-border-strong);
  border-radius: 3px;
  background: transparent;
  color: var(--c-text);
  align-items: center;
  justify-content: center;
  cursor: pointer;
}

/* ==========================================================================
   Hero
   ========================================================================== */

.hero {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  justify-content: center;
  padding-top: 140px;
  padding-bottom: 60px;
  position: relative;
  overflow: hidden;
}

.hero-grid-bg {
  position: absolute;
  inset: 0;
  z-index: 0;
  opacity: 0.6;
  background-image:
    linear-gradient(rgba(27,28,30,0.06) 1px, transparent 1px),
    linear-gradient(90deg, rgba(27,28,30,0.06) 1px, transparent 1px);
  background-size: 64px 64px;
  mask-image: radial-gradient(ellipse 80% 60% at 50% 20%, #000 40%, transparent 100%);
  will-change: transform;
}

.hero-glow {
  position: absolute;
  top: -10%;
  right: -10%;
  width: 640px;
  height: 640px;
  background: radial-gradient(circle, rgba(242,145,31,0.20) 0%, rgba(193,98,11,0.08) 45%, transparent 72%);
  z-index: 0;
  pointer-events: none;
}

.hero .container { position: relative; z-index: 1; }

.hero-content {
  max-width: 880px;
  background: rgba(255, 255, 255, 0.8);
  backdrop-filter: blur(6px);
  -webkit-backdrop-filter: blur(6px);
  border-radius: 8px;
  padding: 44px;
  box-shadow: var(--shadow-card);
}

.hero-content h1 {
  font-size: clamp(38px, 6.4vw, 76px);
  line-height: 1.06;
  margin-top: 20px;
}

.hero-content h1 .accent { color: var(--c-orange-dark); }

.hero-sub {
  margin-top: 26px;
  font-size: clamp(16px, 1.6vw, 19px);
  color: var(--c-text-dim);
  max-width: 640px;
  line-height: 1.65;
}

.hero-ctas {
  display: flex;
  flex-wrap: wrap;
  gap: 16px;
  margin-top: 40px;
}

.hero-stats {
  margin-top: 56px;
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  background: var(--c-surface);
  border-radius: var(--radius);
  box-shadow: var(--shadow-card);
  padding: 32px;
  gap: 24px;
}

.stat .num {
  font-family: var(--font-display);
  font-size: clamp(28px, 3.2vw, 40px);
  font-weight: 600;
  color: var(--c-text);
  display: flex;
  align-items: baseline;
  gap: 2px;
}

.stat .num .suffix { color: var(--c-orange-dark); }

.stat .label {
  margin-top: 8px;
  font-size: 13px;
  color: var(--c-text-faint);
  letter-spacing: 0.03em;
  text-transform: uppercase;
}

/* ==========================================================================
   Capability ticker
   ========================================================================== */

.ticker-wrap {
  background: linear-gradient(90deg, var(--c-orange-dark), var(--c-orange) 50%, var(--c-orange-dark));
  color: #14100c;
  overflow: hidden;
  white-space: nowrap;
  padding: 13px 0;
}

.ticker-track {
  display: inline-flex;
  animation: ticker 32s linear infinite;
}

.ticker-track span {
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 14px;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  padding: 0 28px;
  display: inline-flex;
  align-items: center;
  gap: 28px;
}

.ticker-track span::after {
  content: '/';
  opacity: 0.5;
}

@keyframes ticker {
  from { transform: translateX(0); }
  to { transform: translateX(-50%); }
}

/* ==========================================================================
   Nosotros
   ========================================================================== */

.section-nosotros {
  padding: 120px 0 100px;
}

.section-nosotros::before,
.section-servicios::before,
.section-porque::before,
.section-proyectos::before,
.section-contacto::before {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 1px;
  background: linear-gradient(90deg, transparent, rgba(242, 145, 31, 0.4) 50%, transparent);
}

.nosotros-intro {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 64px;
  margin-bottom: 72px;
  align-items: start;
}

.nosotros-intro .lead {
  font-size: clamp(20px, 2.4vw, 26px);
  line-height: 1.5;
  color: var(--c-text);
  font-weight: 400;
}

.nosotros-intro .lead strong { color: var(--c-text); font-weight: 600; }

.nosotros-intro .body-copy {
  color: var(--c-text-dim);
  font-size: 16px;
  line-height: 1.75;
}

.nosotros-intro .body-copy + .body-copy { margin-top: 16px; }

.mv-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1px;
  background: var(--c-border);
  border: 1px solid var(--c-border);
  border-radius: var(--radius);
  overflow: hidden;
  margin-bottom: 1px;
  box-shadow: var(--shadow-card);
}

.mv-card {
  background: var(--c-surface);
  padding: 40px;
  position: relative;
  border-top: 2px solid var(--c-orange-dark);
}

.mv-card .mv-icon {
  width: 44px;
  height: 44px;
  border-radius: 3px;
  background: var(--c-orange-dim);
  color: var(--c-orange-dark);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 22px;
}

.mv-card h3 {
  font-size: 20px;
  margin-bottom: 14px;
}

.mv-card p {
  color: var(--c-text-dim);
  font-size: 15px;
  line-height: 1.7;
}

.values-strip {
  margin-top: 56px;
}

.values-grid {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: 20px;
}

.value-item {
  border: 1px solid var(--c-border);
  border-left: 3px solid var(--c-orange-dark);
  border-radius: var(--radius);
  padding: 26px 20px;
  background: var(--c-surface);
  box-shadow: var(--shadow-card);
  transition: border-color 0.25s ease, transform 0.25s ease;
}

.value-item:hover {
  border-color: var(--c-orange-dark);
  transform: translateY(-4px);
}

.value-item .n {
  font-family: var(--font-display);
  color: var(--c-orange-dark);
  font-size: 13px;
  letter-spacing: 0.08em;
  margin-bottom: 14px;
  display: block;
}

.value-item h4 {
  font-size: 15px;
  margin-bottom: 10px;
  letter-spacing: 0.01em;
}

.value-item p {
  font-size: 13.5px;
  color: var(--c-text-faint);
  line-height: 1.6;
}

/* ==========================================================================
   Servicios
   ========================================================================== */

.section-servicios {
  padding: 120px 0;
}

.services-list {
  display: flex;
  flex-direction: column;
  border-top: 1px solid var(--c-border);
}

.service-row {
  border-bottom: 1px solid var(--c-border);
}

.service-row .service-head {
  display: flex;
  align-items: center;
  gap: 28px;
  padding: 32px 0 24px;
}

.service-row .idx {
  font-family: var(--font-display);
  font-size: 15px;
  color: var(--c-text-dim);
  width: 44px;
  flex-shrink: 0;
}

.service-row .icon {
  width: 52px;
  height: 52px;
  border-radius: 3px;
  background: var(--c-surface);
  border: 1px solid var(--c-border);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--c-orange-dark);
  flex-shrink: 0;
}

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

.service-row h3 {
  font-size: clamp(19px, 2.4vw, 26px);
  text-transform: none;
  font-weight: 600;
}

.service-row .titles p {
  margin-top: 6px;
  color: var(--c-text-dim);
  font-size: 14px;
  font-family: var(--font-body);
  text-transform: none;
  letter-spacing: normal;
}

.service-row .panel {
  padding: 0 0 36px 124px;
}

.service-row .panel ul {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 12px 32px;
}

.service-row .panel li {
  color: var(--c-text-dim);
  font-size: 15px;
  padding-left: 20px;
  position: relative;
  line-height: 1.5;
}

.service-row .panel li::before {
  content: '';
  position: absolute;
  left: 0;
  top: 9px;
  width: 8px;
  height: 2px;
  background: var(--c-orange-dark);
}

/* ==========================================================================
   Por qué elegirnos
   ========================================================================== */

.section-porque {
  padding: 120px 0;
}

.porque-layout {
  display: grid;
  grid-template-columns: 0.85fr 1.15fr;
  gap: 64px;
}

.porque-visual {
  border: 1px solid var(--c-border);
  border-radius: var(--radius);
  background: var(--c-surface);
  padding: 44px 36px;
  position: relative;
  overflow: hidden;
  box-shadow: var(--shadow-card);
}

.porque-visual::before {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 4px;
  background: linear-gradient(90deg, var(--c-orange), var(--c-orange-dark));
}

.porque-stats {
  display: flex;
  align-items: center;
  gap: 28px;
  margin-bottom: 32px;
  padding-bottom: 28px;
  border-bottom: 1px solid var(--c-border);
}

.stat-block {
  display: flex;
  flex-direction: column;
}

.stat-block .stat-num {
  font-family: var(--font-display);
  font-size: clamp(26px, 3vw, 34px);
  font-weight: 600;
  color: var(--c-text);
  display: flex;
  align-items: baseline;
  gap: 2px;
}

.stat-block .stat-num .suffix { color: var(--c-orange-dark); }

.stat-block .stat-label {
  margin-top: 6px;
  font-size: 12.5px;
  color: var(--c-text-faint);
  letter-spacing: 0.04em;
  text-transform: uppercase;
}

.stat-divider {
  width: 1px;
  align-self: stretch;
  background: var(--c-border-strong);
}

.porque-visual .quote {
  font-family: var(--font-display);
  font-size: clamp(20px, 2.2vw, 25px);
  line-height: 1.4;
  color: var(--c-text);
  margin-bottom: 28px;
}

.porque-visual .quote .accent { color: var(--c-orange-dark); }

.cert-line {
  margin-top: 20px;
  font-size: 14px;
  color: var(--c-text-faint);
}

.cert-line strong { color: var(--c-orange-dark); font-weight: 600; }

.reasons-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1px;
  background: var(--c-border);
  border: 1px solid var(--c-border);
  box-shadow: var(--shadow-card);
}

.reason-item {
  background: var(--c-surface);
  padding: 30px 28px 30px 25px;
  border-left: 3px solid var(--c-orange-dark);
}

.reason-item .num {
  font-family: var(--font-display);
  color: var(--c-orange-dark);
  font-size: 14px;
  margin-bottom: 12px;
  display: block;
}

.reason-item h4 {
  font-size: 16.5px;
  margin-bottom: 10px;
  letter-spacing: 0.005em;
}

.reason-item p {
  font-size: 14px;
  color: var(--c-text-faint);
  line-height: 1.65;
}

/* ==========================================================================
   Proyectos
   ========================================================================== */

.section-proyectos {
  padding: 120px 0;
}

.proyectos-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

.project-card {
  background: var(--c-surface);
  border-radius: var(--radius);
  overflow: hidden;
  box-shadow: var(--shadow-card);
  transition: transform 0.25s ease;
}

.project-card:hover { transform: translateY(-4px); }

.project-photos {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 2px;
  background: var(--c-border);
  aspect-ratio: 16 / 10;
}

.project-photo {
  position: relative;
  overflow: hidden;
}

.project-photo img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
  filter: grayscale(1) contrast(1.08);
}

.project-photo::after {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, var(--c-steel), var(--c-orange-dark));
  mix-blend-mode: color;
  opacity: 0.92;
  pointer-events: none;
}

.project-info {
  padding: 20px 22px 24px;
}

.project-info h3 {
  font-size: 18px;
  text-transform: none;
  font-weight: 600;
}

.project-meta {
  margin-top: 6px;
  font-size: 12.5px;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--c-text-faint);
}

/* ==========================================================================
   Contacto
   ========================================================================== */

.section-contacto {
  padding: 120px 0 100px;
}

.contacto-layout {
  display: grid;
  grid-template-columns: 1fr 1.05fr;
  gap: 60px;
}

.contact-info-list {
  display: flex;
  flex-direction: column;
  gap: 4px;
  margin-bottom: 32px;
}

.contact-info-item {
  display: flex;
  align-items: flex-start;
  gap: 18px;
  padding: 22px 0;
  border-bottom: 1px solid var(--c-border);
}

.contact-info-item .icon {
  width: 44px;
  height: 44px;
  border-radius: 3px;
  background: var(--c-surface);
  border: 1px solid var(--c-border);
  color: var(--c-orange-dark);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

.contact-info-item .label {
  font-size: 12.5px;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--c-text-dim);
  margin-bottom: 4px;
}

.contact-info-item a, .contact-info-item .value {
  font-size: 16.5px;
  color: var(--c-text);
  font-weight: 500;
}

.contact-info-item a:hover { color: var(--c-orange-dark); }

.contact-quick-ctas {
  display: flex;
  gap: 14px;
  flex-wrap: wrap;
  margin-bottom: 36px;
}

.map-frame {
  border: 1px solid var(--c-border);
  border-radius: var(--radius);
  overflow: hidden;
  height: 260px;
  filter: grayscale(0.4) contrast(1.05);
}

.map-frame iframe { width: 100%; height: 100%; border: 0; }

.contact-form {
  background: var(--c-surface);
  border: 1px solid var(--c-border);
  border-radius: var(--radius);
  padding: 40px;
  position: relative;
  overflow: hidden;
  box-shadow: var(--shadow-card);
}

.contact-form::before {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 3px;
  background: linear-gradient(90deg, var(--c-orange), var(--c-orange-dark));
}

.contact-form h3 {
  font-size: 22px;
  margin-bottom: 8px;
}

.contact-form > p {
  color: var(--c-text-faint);
  font-size: 14px;
  margin-bottom: 28px;
}

.form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 18px;
  margin-bottom: 18px;
}

.field {
  display: flex;
  flex-direction: column;
  gap: 8px;
  margin-bottom: 18px;
}

.field label {
  font-size: 12.5px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--c-text-faint);
}

.field input,
.field textarea,
.field select {
  background: var(--c-surface-2);
  border: 1px solid var(--c-border-strong);
  border-radius: 3px;
  padding: 13px 14px;
  color: var(--c-text);
  font-family: var(--font-body);
  font-size: 15px;
  resize: vertical;
  transition: border-color 0.2s ease;
}

.field input:focus,
.field textarea:focus,
.field select:focus {
  outline: none;
  border-color: var(--c-orange-dark);
}

.field textarea { min-height: 110px; }

.form-foot {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  margin-top: 8px;
  flex-wrap: wrap;
}

.form-note {
  font-size: 12.5px;
  color: var(--c-text-faint);
}

.form-status {
  font-size: 13.5px;
  color: var(--c-orange-dark);
  margin-top: 14px;
  display: none;
}
.form-status.is-visible { display: block; }

/* ==========================================================================
   Footer
   ========================================================================== */

.site-footer {
  padding: 56px 0 32px;
  border-top: 1px solid var(--c-border);
  background: var(--c-surface-2);
}

.footer-top {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  gap: 40px;
  flex-wrap: wrap;
  margin-bottom: 40px;
}

.footer-brand .logo { margin-bottom: 14px; }

.footer-brand p {
  color: var(--c-text-faint);
  font-size: 14px;
  max-width: 340px;
  line-height: 1.6;
}

.footer-cols {
  display: flex;
  gap: 64px;
  flex-wrap: wrap;
}

.footer-col h4 {
  font-size: 13px;
  letter-spacing: 0.1em;
  color: var(--c-text-faint);
  margin-bottom: 18px;
}

.footer-col ul {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.footer-col a, .footer-col span {
  font-size: 14.5px;
  color: var(--c-text-dim);
}

.footer-col a:hover { color: var(--c-orange-dark); }

.footer-bottom {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 16px;
  flex-wrap: wrap;
  padding-top: 28px;
  border-top: 1px solid var(--c-border);
  font-size: 13px;
  color: var(--c-text-faint);
}

.back-to-top {
  width: 40px;
  height: 40px;
  border: 1px solid var(--c-border-strong);
  border-radius: 3px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--c-text-dim);
  transition: border-color 0.2s ease, color 0.2s ease;
}
.back-to-top:hover { border-color: var(--c-orange-dark); color: var(--c-orange-dark); }

/* ==========================================================================
   WhatsApp floating button
   ========================================================================== */

.wa-float {
  position: fixed;
  bottom: 26px;
  right: 26px;
  z-index: 90;
  width: 58px;
  height: 58px;
  border-radius: 50%;
  background: #25d366;
  color: #0b1a10;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 8px 24px rgba(0,0,0,0.35);
  transition: transform 0.2s ease;
}
.wa-float:hover { transform: scale(1.07); }

/* ==========================================================================
   Responsive
   ========================================================================== */

@media (max-width: 980px) {
  .main-nav { display: none; }
  .nav-toggle { display: flex; }
  .header-phone { display: none; }

  .hero-stats { grid-template-columns: repeat(2, 1fr); }
  .nosotros-intro { grid-template-columns: 1fr; gap: 32px; }
  .mv-grid { grid-template-columns: 1fr; }
  .values-grid { grid-template-columns: repeat(2, 1fr); }
  .porque-layout { grid-template-columns: 1fr; }
  .reasons-grid { grid-template-columns: 1fr; }
  .proyectos-grid { grid-template-columns: 1fr; }
  .contacto-layout { grid-template-columns: 1fr; }
  .form-row { grid-template-columns: 1fr; }
  .footer-top { flex-direction: column; }

  .site-header.mobile-open .mobile-nav { display: flex; }
}

@media (max-width: 560px) {
  .header-actions .btn-primary.js-contact-cta { display: none; }
}

@media (max-width: 640px) {
  .values-grid { grid-template-columns: 1fr 1fr; }
  .service-row .service-head { gap: 16px; }
  .service-row .panel { padding-left: 0; }
  .service-row .panel ul { grid-template-columns: 1fr; }
  .hero-stats { grid-template-columns: 1fr 1fr; }
  .hero-content h1 { font-size: clamp(32px, 9vw, 44px); }
}

/* Mobile nav drawer */
.mobile-nav {
  display: none;
  position: fixed;
  top: 0; right: 0; bottom: 0;
  width: min(320px, 82vw);
  background: var(--c-surface);
  border-left: 1px solid var(--c-border);
  box-shadow: -8px 0 30px rgba(27, 28, 30, 0.12);
  z-index: 110;
  padding: 28px;
  flex-direction: column;
  gap: 4px;
  transform: translateX(100%);
  transition: transform 0.35s ease;
}

.mobile-nav.is-open { display: flex; transform: translateX(0); }

.mobile-nav a {
  padding: 16px 4px;
  border-bottom: 1px solid var(--c-border);
  font-family: var(--font-display);
  font-size: 17px;
  letter-spacing: 0.03em;
  text-transform: uppercase;
}

.mobile-nav-close {
  align-self: flex-end;
  width: 40px;
  height: 40px;
  display: flex;
  align-items: center;
  justify-content: center;
  border: 1px solid var(--c-border-strong);
  border-radius: 3px;
  color: var(--c-text);
  margin-bottom: 12px;
}

.scrim {
  position: fixed;
  inset: 0;
  background: rgba(0,0,0,0.5);
  z-index: 105;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.3s ease;
}
.scrim.is-visible { opacity: 1; pointer-events: auto; }