/* =========================================================
   Franco Cocinas e Interiores — hoja de estilos principal
   Paleta: blanco, dorado, negro
   ========================================================= */

:root {
  --color-black: #121212;
  --color-black-soft: #1c1c1c;
  --color-white: #ffffff;
  --color-ivory: #f7f5f1;
  --color-gold: #c6a15b;
  --color-gold-light: #e8d5a6;
  --color-gold-dark: #9c7a32;
  --color-text: #2a2a2a;
  --color-text-muted: #6b6b6b;

  --font-heading: 'Playfair Display', Georgia, serif;
  --font-body: 'Poppins', 'Segoe UI', sans-serif;

  --container-width: 1180px;
  --radius: 4px;
  --transition: 0.3s ease;
}

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

html {
  scroll-behavior: smooth;
}

body {
  font-family: var(--font-body);
  color: var(--color-text);
  background: var(--color-white);
  line-height: 1.6;
  overflow-x: hidden;
}

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

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

ul {
  list-style: none;
}

.container {
  width: 100%;
  max-width: var(--container-width);
  margin: 0 auto;
  padding: 0 24px;
}

.section {
  padding: 100px 0;
}

.section--ivory {
  background: var(--color-ivory);
}

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

.section-header {
  text-align: center;
  max-width: 640px;
  margin: 0 auto 60px;
}

.eyebrow {
  display: inline-block;
  font-family: var(--font-body);
  font-size: 13px;
  letter-spacing: 3px;
  text-transform: uppercase;
  color: var(--color-gold-dark);
  font-weight: 600;
  margin-bottom: 14px;
}

.section--dark .eyebrow {
  color: var(--color-gold);
}

.section-title {
  font-family: var(--font-heading);
  font-size: clamp(28px, 4vw, 42px);
  font-weight: 700;
  line-height: 1.25;
  margin-bottom: 16px;
}

.section-subtitle {
  color: var(--color-text-muted);
  font-size: 16px;
}

.section--dark .section-subtitle {
  color: #c9c9c9;
}

/* Botones */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 15px 32px;
  border-radius: var(--radius);
  font-weight: 600;
  font-size: 14px;
  letter-spacing: 0.5px;
  text-transform: uppercase;
  transition: all var(--transition);
  border: 1px solid transparent;
  cursor: pointer;
}

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

.btn--gold:hover {
  background: var(--color-gold-dark);
  transform: translateY(-2px);
}

.btn--outline {
  border-color: var(--color-white);
  color: var(--color-white);
}

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

.btn--outline-dark {
  border-color: var(--color-black);
  color: var(--color-black);
}

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

.btn--block {
  width: 100%;
  justify-content: center;
}

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

.header {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  z-index: 1000;
  padding: 22px 0;
  transition: all var(--transition);
  background: transparent;
}

.header.is-scrolled {
  background: rgba(18, 18, 18, 0.95);
  padding: 14px 0;
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.25);
}

.header__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.header__logo img {
  height: 46px;
  transition: height var(--transition);
}

.header.is-scrolled .header__logo img {
  height: 38px;
}

.nav {
  display: flex;
  align-items: center;
  gap: 40px;
}

.nav__link {
  color: var(--color-white);
  font-size: 14px;
  font-weight: 500;
  letter-spacing: 0.5px;
  text-transform: uppercase;
  position: relative;
  padding-bottom: 4px;
}

.nav__link::after {
  content: '';
  position: absolute;
  left: 0;
  bottom: 0;
  width: 0;
  height: 2px;
  background: var(--color-gold);
  transition: width var(--transition);
}

.nav__link:hover::after {
  width: 100%;
}

.nav__cta {
  display: flex;
  align-items: center;
  gap: 24px;
}

.nav-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  z-index: 1100;
}

.nav-toggle span {
  width: 26px;
  height: 2px;
  background: var(--color-white);
  transition: all var(--transition);
}

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

.hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  color: var(--color-white);
  background: var(--color-black);
}

.hero__bg {
  position: absolute;
  inset: 0;
  background-size: cover;
  background-position: center;
  opacity: 0.55;
}

.hero__overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, rgba(18, 18, 18, 0.75) 0%, rgba(18, 18, 18, 0.55) 45%, rgba(18, 18, 18, 0.92) 100%);
}

.hero__content {
  position: relative;
  z-index: 2;
  max-width: 720px;
  padding-top: 80px;
}

.hero__eyebrow {
  display: inline-block;
  color: var(--color-gold);
  font-size: 14px;
  letter-spacing: 4px;
  text-transform: uppercase;
  font-weight: 600;
  margin-bottom: 22px;
}

.hero__title {
  font-family: var(--font-heading);
  font-size: clamp(36px, 6vw, 64px);
  font-weight: 700;
  line-height: 1.15;
  margin-bottom: 24px;
}

.hero__title span {
  color: var(--color-gold);
}

.hero__text {
  font-size: 18px;
  color: #d8d8d8;
  max-width: 560px;
  margin-bottom: 40px;
}

.hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 18px;
}

.hero__scroll {
  position: absolute;
  bottom: 36px;
  left: 50%;
  transform: translateX(-50%);
  z-index: 2;
  color: var(--color-white);
  font-size: 12px;
  letter-spacing: 2px;
  text-transform: uppercase;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 10px;
  opacity: 0.8;
}

.hero__scroll-line {
  width: 1px;
  height: 40px;
  background: var(--color-gold);
  animation: scrollPulse 2s infinite;
}

@keyframes scrollPulse {
  0% { transform: scaleY(0); transform-origin: top; }
  50% { transform: scaleY(1); transform-origin: top; }
  51% { transform-origin: bottom; }
  100% { transform: scaleY(0); transform-origin: bottom; }
}

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

.services {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 32px;
}

.service-card {
  background: var(--color-white);
  border: 1px solid #ece7dd;
  border-radius: var(--radius);
  padding: 44px 34px;
  text-align: center;
  transition: all var(--transition);
}

.service-card:hover {
  border-color: var(--color-gold);
  box-shadow: 0 20px 40px rgba(0, 0, 0, 0.08);
  transform: translateY(-6px);
}

.service-card__icon {
  width: 64px;
  height: 64px;
  margin: 0 auto 24px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 50%;
  background: var(--color-ivory);
  color: var(--color-gold-dark);
}

.service-card__icon svg {
  width: 30px;
  height: 30px;
  stroke: var(--color-gold-dark);
}

.service-card__title {
  font-family: var(--font-heading);
  font-size: 21px;
  font-weight: 700;
  margin-bottom: 14px;
}

.service-card__text {
  color: var(--color-text-muted);
  font-size: 15px;
}

/* =========================================================
   Marcas premium
   ========================================================= */

.brands {
  padding: 50px 0;
  background: var(--color-ivory);
  border-top: 1px solid #ece7dd;
  border-bottom: 1px solid #ece7dd;
}

.brands__label {
  text-align: center;
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 2px;
  text-transform: uppercase;
  color: var(--color-text-muted);
  margin-bottom: 32px;
}

.brands__grid {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: center;
  gap: 20px;
}

.brands__item {
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--color-white);
  border: 1px solid #ece7dd;
  border-radius: var(--radius);
  padding: 18px 28px;
  height: 76px;
  transition: all var(--transition);
}

.brands__item:hover {
  border-color: var(--color-gold);
  box-shadow: 0 12px 24px rgba(0, 0, 0, 0.06);
  transform: translateY(-3px);
}

.brands__item img {
  max-height: 34px;
  max-width: 130px;
  width: auto;
  height: auto;
  object-fit: contain;
  filter: grayscale(1) opacity(0.55);
  transition: filter var(--transition);
}

.brands__item:hover img {
  filter: grayscale(0) opacity(1);
}

/* =========================================================
   Proceso de trabajo
   ========================================================= */

.process {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 30px;
  counter-reset: step;
}

.process-step {
  position: relative;
  text-align: center;
  padding: 0 12px;
}

.process-step::before {
  counter-increment: step;
  content: counter(step, decimal-leading-zero);
  display: block;
  font-family: var(--font-heading);
  font-size: 46px;
  font-weight: 700;
  color: var(--color-gold);
  opacity: 0.9;
  margin-bottom: 18px;
}

.process-step__title {
  font-size: 18px;
  font-weight: 600;
  margin-bottom: 10px;
  color: var(--color-white);
}

.process-step__text {
  font-size: 14px;
  color: #b9b9b9;
}

.process-step:not(:last-child)::after {
  content: '';
  position: absolute;
  top: 24px;
  left: calc(50% + 46px);
  width: calc(100% - 60px);
  height: 1px;
  background: linear-gradient(90deg, var(--color-gold), transparent);
}

/* =========================================================
   Galería
   ========================================================= */

.gallery {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 16px;
}

.gallery-item {
  position: relative;
  overflow: hidden;
  border-radius: var(--radius);
  cursor: pointer;
  aspect-ratio: 4 / 3;
  background: var(--color-ivory);
}

.gallery-item:nth-child(5n+1) {
  grid-column: span 2;
  grid-row: span 2;
  aspect-ratio: 1 / 1;
}

.gallery-item img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.5s ease;
}

.gallery-item:hover img {
  transform: scale(1.08);
}

.gallery-item__overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, rgba(18,18,18,0) 40%, rgba(18,18,18,0.75) 100%);
  opacity: 0;
  transition: opacity var(--transition);
  display: flex;
  align-items: flex-end;
  padding: 18px;
}

.gallery-item:hover .gallery-item__overlay {
  opacity: 1;
}

.gallery-item__icon {
  width: 40px;
  height: 40px;
  border-radius: 50%;
  border: 1px solid var(--color-gold);
  color: var(--color-white);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-left: auto;
}

.gallery-footer {
  text-align: center;
  margin-top: 44px;
}

/* Lightbox */
.lightbox {
  position: fixed;
  inset: 0;
  background: rgba(10, 10, 10, 0.95);
  z-index: 2000;
  display: none;
  align-items: center;
  justify-content: center;
  padding: 40px;
}

.lightbox.is-open {
  display: flex;
}

.lightbox img {
  max-width: 100%;
  max-height: 85vh;
  border: 1px solid rgba(255,255,255,0.1);
}

.lightbox__close,
.lightbox__nav {
  position: absolute;
  background: none;
  border: none;
  color: var(--color-white);
  cursor: pointer;
  font-size: 26px;
  transition: color var(--transition);
}

.lightbox__close {
  top: 28px;
  right: 34px;
}

.lightbox__nav {
  top: 50%;
  transform: translateY(-50%);
  font-size: 40px;
}

.lightbox__nav--prev { left: 24px; }
.lightbox__nav--next { right: 24px; }

.lightbox__close:hover,
.lightbox__nav:hover {
  color: var(--color-gold);
}

.lightbox__counter {
  position: absolute;
  bottom: 28px;
  left: 50%;
  transform: translateX(-50%);
  color: #ccc;
  font-size: 13px;
  letter-spacing: 1px;
}

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

.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 60px;
  align-items: start;
}

.contact-info__item {
  display: flex;
  gap: 18px;
  margin-bottom: 28px;
}

.contact-info__icon {
  width: 48px;
  height: 48px;
  flex-shrink: 0;
  border-radius: 50%;
  background: rgba(198, 161, 91, 0.12);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--color-gold);
}

.contact-info__icon svg {
  width: 22px;
  height: 22px;
  stroke: var(--color-gold);
}

.contact-info__label {
  font-size: 13px;
  text-transform: uppercase;
  letter-spacing: 1px;
  color: var(--color-gold);
  margin-bottom: 4px;
  font-weight: 600;
}

.contact-info__value {
  color: var(--color-white);
  font-size: 16px;
}

.contact-info__value a:hover {
  color: var(--color-gold);
}

.social-links {
  display: flex;
  gap: 14px;
  margin-top: 32px;
}

.social-links a {
  width: 44px;
  height: 44px;
  border-radius: 50%;
  border: 1px solid rgba(255,255,255,0.2);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--color-white);
  transition: all var(--transition);
}

.social-links a:hover {
  background: var(--color-gold);
  border-color: var(--color-gold);
  color: var(--color-black);
}

.social-links svg {
  width: 18px;
  height: 18px;
  fill: currentColor;
}

.map-wrapper {
  margin-top: 32px;
  border-radius: var(--radius);
  overflow: hidden;
  border: 1px solid rgba(255,255,255,0.12);
}

.map-wrapper iframe {
  width: 100%;
  height: 220px;
  border: 0;
  filter: grayscale(0.3) contrast(1.1);
}

.contact-form {
  background: var(--color-white);
  padding: 44px;
  border-radius: var(--radius);
}

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

.form-group {
  margin-bottom: 20px;
}

.form-group label {
  display: block;
  font-size: 13px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  color: var(--color-black);
  margin-bottom: 8px;
}

.form-group input,
.form-group textarea,
.form-group select {
  width: 100%;
  padding: 14px 16px;
  border: 1px solid #ddd;
  border-radius: var(--radius);
  font-family: var(--font-body);
  font-size: 15px;
  background: var(--color-ivory);
  transition: border-color var(--transition);
}

.form-group input:focus,
.form-group textarea:focus,
.form-group select:focus {
  outline: none;
  border-color: var(--color-gold);
  background: var(--color-white);
}

.form-group textarea {
  resize: vertical;
  min-height: 120px;
}

.form-status {
  margin-top: 16px;
  padding: 14px 16px;
  border-radius: var(--radius);
  font-size: 14px;
  display: none;
}

.form-status.is-visible {
  display: block;
}

.form-status.success {
  background: #e7f6ea;
  color: #256d3b;
}

.form-status.error {
  background: #fbe9e9;
  color: #a13333;
}

/* =========================================================
   WhatsApp flotante
   ========================================================= */

.whatsapp-float {
  position: fixed;
  bottom: 28px;
  right: 28px;
  width: 60px;
  height: 60px;
  background: #25D366;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 8px 24px rgba(0,0,0,0.25);
  z-index: 999;
  transition: transform var(--transition);
}

.whatsapp-float:hover {
  transform: scale(1.08);
}

.whatsapp-float svg {
  width: 30px;
  height: 30px;
  fill: var(--color-white);
}

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

.footer {
  background: var(--color-black);
  color: #999;
  padding: 60px 0 24px;
}

.footer__top {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding-bottom: 40px;
  border-bottom: 1px solid rgba(255,255,255,0.08);
  flex-wrap: wrap;
  gap: 24px;
}

.footer__logo img {
  height: 42px;
}

.footer__nav {
  display: flex;
  gap: 30px;
  flex-wrap: wrap;
}

.footer__nav a {
  color: #ccc;
  font-size: 14px;
}

.footer__nav a:hover {
  color: var(--color-gold);
}

.footer__bottom {
  padding-top: 24px;
  text-align: center;
  font-size: 13px;
}

.footer__bottom a {
  color: var(--color-gold);
}

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

@media (max-width: 992px) {
  .services,
  .process {
    grid-template-columns: repeat(2, 1fr);
  }

  .process-step::after {
    display: none;
  }

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

  .gallery {
    grid-template-columns: repeat(3, 1fr);
  }
}

@media (max-width: 768px) {
  .section {
    padding: 70px 0;
  }

  .nav {
    position: fixed;
    top: 0;
    right: 0;
    height: 100vh;
    width: 78%;
    max-width: 320px;
    background: var(--color-black);
    flex-direction: column;
    justify-content: center;
    align-items: flex-start;
    padding: 40px;
    gap: 26px;
    transform: translateX(100%);
    transition: transform 0.35s ease;
  }

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

  .nav__cta {
    flex-direction: column;
    align-items: flex-start;
  }

  .nav-toggle {
    display: flex;
  }

  .nav-toggle.is-active span:nth-child(1) {
    transform: translateY(7px) rotate(45deg);
  }
  .nav-toggle.is-active span:nth-child(2) {
    opacity: 0;
  }
  .nav-toggle.is-active span:nth-child(3) {
    transform: translateY(-7px) rotate(-45deg);
  }

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

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

  .gallery-item:nth-child(5n+1) {
    grid-column: span 2;
    grid-row: span 1;
    aspect-ratio: 16 / 10;
  }

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

  .contact-form {
    padding: 30px 24px;
  }

  .footer__top {
    flex-direction: column;
    text-align: center;
  }
}

@media (max-width: 480px) {
  .gallery {
    grid-template-columns: repeat(2, 1fr);
  }

  .lightbox {
    padding: 16px;
  }

  .lightbox__nav {
    font-size: 30px;
  }
}