:root {
  --red: #F9151D;
  --black: #0A0A0A;
  --white: #FFFFFF;
  --steel: #F3F3F3;
  --tech-gray: #6B6B6B;
  --graphite: #181818;

  --font-display: "Oswald", sans-serif;
  --font-body: "Inter", sans-serif;

  --radius-card: 6px;
  --radius-btn: 4px;

  --container-width: 1280px;
}

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

html {
  scroll-behavior: smooth;
}

#servicios,
#nosotros,
#proceso,
#contacto,
#contacto-mail {
  scroll-margin-top: 76px;
}

body {
  font-family: var(--font-body);
  color: var(--black);
  background: var(--white);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

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

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

ul {
  list-style: none;
}

.container {
  max-width: var(--container-width);
  margin: 0 auto;
  padding: 0 clamp(20px, 5vw, 60px);
}

h1, h2, h3 {
  font-family: var(--font-display);
  text-transform: uppercase;
  line-height: 1.05;
  font-weight: 700;
}

h2 {
  font-size: clamp(32px, 4.5vw, 52px);
}

h3 {
  font-size: clamp(20px, 2.5vw, 26px);
  font-weight: 600;
}

p {
  color: var(--tech-gray);
}

.eyebrow {
  display: inline-block;
  font-family: var(--font-display);
  font-size: 13px;
  font-weight: 600;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  color: var(--red);
  margin-bottom: 16px;
}

.eyebrow-light {
  color: var(--white);
}

.text-accent {
  color: var(--red);
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-family: var(--font-body);
  font-weight: 600;
  font-size: 15px;
  padding: 14px 26px;
  border-radius: var(--radius-btn);
  border: 1.5px solid transparent;
  white-space: nowrap;
  transition: transform 0.15s ease, opacity 0.15s ease;
}

.btn:hover {
  transform: translateY(-1px);
  opacity: 0.92;
}

.btn-primary {
  background: var(--red);
  color: var(--white);
}

.btn-dark {
  background: var(--black);
  color: var(--white);
}

.btn-outline-light {
  background: transparent;
  color: var(--white);
  border-color: rgba(255, 255, 255, 0.5);
}

.btn-white {
  background: var(--white);
  color: var(--black);
}

.btn-whatsapp {
  background: #25D366;
  color: var(--white);
  padding: 11px 18px;
  font-size: 14px;
}

.link-arrow {
  display: inline-block;
  margin-top: 8px;
  font-weight: 600;
  color: var(--black);
  border-bottom: 2px solid var(--red);
  padding-bottom: 2px;
}

/* Header */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: var(--white);
  border-bottom: 1px solid #e5e5e5;
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  padding-top: 14px;
  padding-bottom: 14px;
}

.brand-logo {
  height: 68px;
  width: auto;
  filter: brightness(0) invert(1);
}

.brand-logo {
  filter: none;
}

.main-nav {
  display: flex;
  gap: 32px;
  font-size: 14px;
  font-weight: 500;
}

.main-nav a {
  color: var(--black);
  opacity: 0.7;
}

.main-nav a:hover {
  opacity: 1;
  color: var(--red);
}

.header-actions {
  display: flex;
  align-items: center;
  gap: 16px;
}

.nav-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 8px;
}

.nav-toggle span {
  width: 22px;
  height: 2px;
  background: var(--black);
}

/* Hero */
.hero {
  position: relative;
  background: var(--black);
  color: var(--white);
  overflow: hidden;
}

.hero-bg {
  position: absolute;
  inset: 0;
  background:
    linear-gradient(120deg, rgba(10,10,10,0.92) 30%, rgba(10,10,10,0.75) 100%),
    repeating-linear-gradient(-15deg, #1a1a1a 0px, #1a1a1a 2px, #0a0a0a 2px, #0a0a0a 40px);
}

.hero-inner {
  position: relative;
  padding-top: clamp(64px, 10vh, 110px);
  padding-bottom: clamp(56px, 8vh, 90px);
  max-width: 900px;
}

.hero h1 {
  font-size: clamp(40px, 7vw, 76px);
  margin-bottom: 12px;
}

.hero-sub {
  font-family: var(--font-display);
  text-transform: uppercase;
  font-size: clamp(16px, 2vw, 20px);
  letter-spacing: 0.08em;
  color: var(--white);
  opacity: 0.75;
  margin-bottom: 20px;
}

.hero-copy {
  color: rgba(255, 255, 255, 0.75);
  font-size: 16px;
  max-width: 620px;
  margin-bottom: 32px;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 16px;
  margin-bottom: 48px;
}

.hero-facts {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
  border-top: 1px solid rgba(255, 255, 255, 0.15);
  padding-top: 28px;
}

.hero-facts li {
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.hero-facts strong {
  font-family: var(--font-display);
  font-size: 17px;
  text-transform: uppercase;
}

.hero-facts span {
  font-size: 13px;
  color: rgba(255, 255, 255, 0.6);
}

/* Sectors marquee */
.sectors {
  background: var(--graphite);
  padding: 22px 0;
}

.sectors-inner {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 12px 32px;
}

.sectors-item {
  font-family: var(--font-display);
  font-size: 13px;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  color: rgba(255, 255, 255, 0.55);
}

/* Workshop / history */
.workshop {
  padding: clamp(64px, 10vh, 120px) 0;
  background: var(--white);
}

.workshop-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 56px;
  align-items: center;
}

.workshop-text h2 {
  margin-bottom: 20px;
}

.workshop-text p {
  margin-bottom: 16px;
  max-width: 480px;
}

.workshop-gallery {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 12px;
}

.gallery-item {
  position: relative;
  aspect-ratio: 1 / 1;
  border-radius: var(--radius-card);
  background:
    linear-gradient(160deg, rgba(249,21,29,0.12), transparent 50%),
    linear-gradient(-10deg, var(--graphite) 45%, var(--black) 100%);
  overflow: hidden;
}

.gallery-item--wide {
  grid-column: span 2;
  aspect-ratio: 16 / 9;
}

.gallery-item--photo {
  background-size: cover;
  background-position: center;
}

.gallery-item::after {
  content: attr(data-label);
  position: absolute;
  left: 16px;
  bottom: 14px;
  color: var(--white);
  font-family: var(--font-display);
  font-size: 13px;
  text-transform: uppercase;
  letter-spacing: 0.03em;
  opacity: 0.85;
}

.gallery-item::before {
  content: "";
  position: absolute;
  top: 12px;
  right: 12px;
  width: 22px;
  height: 22px;
  background: var(--red);
  clip-path: polygon(20% 0, 100% 0, 80% 100%, 0 100%);
}

/* Services */
.services {
  background: var(--black);
  color: var(--white);
  padding: clamp(64px, 10vh, 120px) 0;
}

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

.services h2 {
  color: var(--white);
}

.services-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
}

.service-card {
  background: var(--graphite);
  border-radius: var(--radius-card);
  padding: 28px 22px;
  border-top: 3px solid var(--red);
}

.service-icon {
  display: block;
  font-family: var(--font-display);
  font-size: 32px;
  color: var(--red);
  margin-bottom: 16px;
}

.service-card h3 {
  color: var(--white);
  margin-bottom: 10px;
}

.service-card p {
  font-size: 14px;
  color: rgba(255, 255, 255, 0.6);
}

/* Trust */
.trust {
  background: var(--steel);
  padding: clamp(64px, 10vh, 120px) 0;
}

.trust-grid {
  display: grid;
  grid-template-columns: 0.8fr 1.2fr;
  gap: 56px;
}

.trust-copy p {
  margin-top: 12px;
  font-size: 17px;
  color: var(--black);
  font-weight: 500;
}

.trust-list {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 28px 32px;
}

.trust-list h3 {
  margin-bottom: 8px;
}

.trust-list p {
  font-size: 14px;
}

/* Process */
.process {
  background: var(--graphite);
  color: var(--white);
  padding: clamp(64px, 10vh, 120px) 0;
  text-align: center;
}

.process .eyebrow {
  display: block;
}

.process-title {
  color: var(--white);
  max-width: 640px;
  margin: 0 auto 56px;
}

.process-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
  text-align: left;
}

.process-step {
  border-top: 1px solid rgba(255, 255, 255, 0.15);
  padding-top: 20px;
}

.process-number {
  display: block;
  font-family: var(--font-display);
  font-size: 15px;
  color: var(--red);
  margin-bottom: 10px;
}

.process-step h3 {
  color: var(--white);
  margin-bottom: 8px;
}

.process-step p {
  font-size: 14px;
}

.process-note {
  margin-top: 48px;
  font-size: 18px;
  font-weight: 600;
  color: var(--white);
  border-top: 1px solid rgba(255, 255, 255, 0.15);
  padding-top: 28px;
  max-width: 560px;
  margin-left: auto;
  margin-right: auto;
}

/* CTA banner */
.cta-banner {
  background: var(--red);
  color: var(--white);
  padding: clamp(48px, 7vh, 72px) 0;
}

.cta-banner-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  flex-wrap: wrap;
}

.cta-banner h2 {
  color: var(--white);
  margin-bottom: 8px;
}

.cta-banner p {
  color: rgba(255, 255, 255, 0.85);
  margin-bottom: 14px;
}

.link-arrow-light {
  display: inline-block;
  font-weight: 600;
  font-size: 14px;
  color: var(--white);
  border-bottom: 2px solid rgba(255, 255, 255, 0.5);
  padding-bottom: 2px;
}

/* Contact form */
.contact-form-section {
  background: var(--white);
  padding: clamp(64px, 10vh, 120px) 0;
}

.contact-form-grid {
  display: grid;
  grid-template-columns: 0.8fr 1.2fr;
  gap: 56px;
  align-items: start;
}

.contact-form-copy h2 {
  margin: 16px 0 12px;
}

.contact-form-copy p {
  max-width: 360px;
}

.contact-form {
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
}

.contact-form input,
.contact-form textarea {
  width: 100%;
  font-family: var(--font-body);
  font-size: 15px;
  padding: 14px 16px;
  border: 1px solid #e5e5e5;
  border-radius: var(--radius-btn);
  background: var(--white);
  color: var(--black);
}

.contact-form input:focus,
.contact-form textarea:focus {
  outline: none;
  border-color: var(--red);
}

.contact-form textarea {
  resize: vertical;
}

.contact-form button {
  align-self: flex-start;
}

.contact-form button:disabled {
  opacity: 0.6;
  cursor: not-allowed;
}

/* Toast */
.toast {
  position: fixed;
  left: 50%;
  bottom: 28px;
  transform: translate(-50%, 16px);
  max-width: min(90vw, 420px);
  background: var(--black);
  color: var(--white);
  font-size: 14px;
  font-weight: 500;
  padding: 14px 18px;
  border-radius: var(--radius-card);
  border-left: 4px solid var(--tech-gray);
  box-shadow: 0 10px 24px rgba(0, 0, 0, 0.25);
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.25s ease, transform 0.25s ease;
  z-index: 200;
}

.toast.is-visible {
  opacity: 1;
  transform: translate(-50%, 0);
}

.toast-success {
  border-left-color: #25D366;
}

.toast-error {
  border-left-color: var(--red);
}

@media (max-width: 960px) {
  .contact-form-grid {
    grid-template-columns: 1fr;
  }

  .form-row {
    grid-template-columns: 1fr;
  }
}

/* Footer */
.site-footer {
  background: var(--black);
  color: rgba(255, 255, 255, 0.7);
  padding-top: clamp(56px, 8vh, 80px);
}

.footer-grid {
  display: grid;
  grid-template-columns: 1.6fr 1fr 1fr 1fr;
  gap: 32px;
  padding-bottom: 48px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.footer-logo {
  height: 30px;
  margin-bottom: 16px;
}

.footer-brand p {
  font-size: 14px;
  max-width: 320px;
  color: rgba(255, 255, 255, 0.55);
}

.footer-col h4 {
  font-family: var(--font-display);
  font-size: 14px;
  text-transform: uppercase;
  color: var(--white);
  margin-bottom: 16px;
}

.footer-col {
  display: flex;
  flex-direction: column;
  gap: 10px;
  font-size: 14px;
}

.footer-zone {
  color: rgba(255, 255, 255, 0.5);
  font-size: 13px;
}

.footer-bottom {
  padding: 20px 0;
  font-size: 13px;
  color: rgba(255, 255, 255, 0.4);
}

/* WhatsApp floating button */
.whatsapp-float {
  position: fixed;
  bottom: 24px;
  right: 24px;
  width: 56px;
  height: 56px;
  border-radius: 50%;
  background: #25D366;
  color: var(--white);
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 6px 16px rgba(0, 0, 0, 0.25);
  z-index: 90;
}

/* Responsive */
@media (max-width: 960px) {
  .main-nav {
    display: none;
  }

  .nav-toggle {
    display: flex;
  }

  .main-nav.is-open {
    display: flex;
    flex-direction: column;
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    background: var(--white);
    padding: 16px clamp(20px, 5vw, 60px) 24px;
    gap: 18px;
    border-top: 1px solid #e5e5e5;
    box-shadow: 0 8px 16px rgba(0, 0, 0, 0.06);
  }

  .hero-facts {
    grid-template-columns: repeat(2, 1fr);
  }

  .workshop-grid,
  .trust-grid {
    grid-template-columns: 1fr;
  }

  .services-grid,
  .process-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .trust-list {
    grid-template-columns: 1fr;
  }

  .footer-grid {
    grid-template-columns: 1fr 1fr;
  }
}

@media (max-width: 560px) {
  .btn-whatsapp span {
    display: none;
  }

  .hero-facts {
    grid-template-columns: 1fr 1fr;
  }

  .services-grid,
  .process-grid {
    grid-template-columns: 1fr;
  }

  .cta-banner-inner {
    flex-direction: column;
    align-items: flex-start;
  }

  .footer-grid {
    grid-template-columns: 1fr;
  }
}