/* ========================================
   CONSTRUCTORA JIREH - PREMIUM WEBSITE
   ======================================== */

/* ===== DESIGN TOKENS (CSS Custom Properties) ===== */
:root {
  /* Colors */
  --color-bg-primary: #0d0d0d;
  --color-bg-secondary: #1a1a1a;
  --color-bg-card: #222222;
  --color-bg-card-hover: #2a2a2a;
  --color-text-primary: #f5f5f5;
  --color-text-secondary: #b3b3b3;
  --color-accent-gold: #c8a960;
  --color-accent-gold-light: #e8d5a3;
  --color-accent-copper: #b87333;
  --color-whatsapp: #25D366;
  --color-overlay: rgba(0, 0, 0, 0.55);
  --color-nav-bg: rgba(18, 18, 18, 0.95);
  --color-error: #e74c3c;
  --color-success: #2ecc71;

  /* Typography */
  --font-heading: 'Playfair Display', Georgia, serif;
  --font-body: 'Raleway', 'Segoe UI', sans-serif;
  --font-size-base: 1rem;
  --font-size-h1: clamp(2.5rem, 5vw, 4.5rem);
  --font-size-h2: clamp(1.8rem, 3vw, 2.8rem);
  --font-size-h3: clamp(1.2rem, 2vw, 1.5rem);

  /* Spacing */
  --section-padding: clamp(60px, 10vw, 120px);
  --container-max-width: 1200px;
  --container-padding: clamp(16px, 4vw, 40px);

  /* Transitions */
  --transition-fast: 200ms ease;
  --transition-medium: 300ms ease;
  --transition-slow: 500ms ease;

  /* Shadows */
  --shadow-card: 0 4px 20px rgba(0, 0, 0, 0.3);
  --shadow-card-hover: 0 8px 40px rgba(200, 169, 96, 0.15);

  /* Z-index */
  --z-nav: 100;
  --z-lightbox: 200;
  --z-whatsapp: 150;
}

/* ===== SPLASH SCREEN ===== */
.splash {
  position: fixed;
  inset: 0;
  z-index: 9999;
  background: var(--color-bg-primary);
  display: flex;
  align-items: center;
  justify-content: center;
  transition: opacity 0.8s ease, visibility 0.8s ease;
}

.splash.hidden {
  opacity: 0;
  visibility: hidden;
  pointer-events: none;
}

.splash__content {
  text-align: center;
}

.splash__title {
  font-family: var(--font-heading);
  font-size: clamp(2rem, 6vw, 3.5rem);
  font-weight: 700;
  color: var(--color-text-primary);
  opacity: 0;
  filter: blur(10px);
  animation: splashReveal 1.5s ease forwards;
}

.splash__line {
  width: 0;
  height: 2px;
  background: linear-gradient(90deg, var(--color-accent-gold), var(--color-accent-copper));
  margin: 20px auto 0;
  animation: splashLine 1s ease 0.8s forwards;
}

@keyframes splashReveal {
  0% {
    opacity: 0;
    filter: blur(10px);
    transform: scale(0.95);
  }
  100% {
    opacity: 1;
    filter: blur(0);
    transform: scale(1);
  }
}

@keyframes splashLine {
  to {
    width: 80px;
  }
}

/* ===== RESET & BASE ===== */
*,
*::before,
*::after {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
  scroll-padding-top: 80px;
}

body {
  font-family: var(--font-body);
  font-size: var(--font-size-base);
  font-weight: 400;
  line-height: 1.6;
  color: var(--color-text-primary);
  background-color: var(--color-bg-primary);
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
}

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

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

ul {
  list-style: none;
}

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

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

.section {
  padding: var(--section-padding) 0;
}

.gold {
  color: var(--color-accent-gold);
}

/* ===== BUTTONS ===== */
.btn {
  display: inline-block;
  padding: 14px 36px;
  font-family: var(--font-body);
  font-size: 0.95rem;
  font-weight: 600;
  letter-spacing: 1px;
  text-transform: uppercase;
  border-radius: 4px;
  transition: all var(--transition-medium);
  position: relative;
  overflow: hidden;
}

.btn--gold {
  background: linear-gradient(135deg, var(--color-accent-gold), var(--color-accent-copper));
  color: var(--color-bg-primary);
  border: 2px solid var(--color-accent-gold);
}

.btn--gold:hover {
  background: transparent;
  color: var(--color-accent-gold);
  transform: translateY(-3px);
  box-shadow: 0 8px 30px rgba(200, 169, 96, 0.35);
}

.btn--full {
  width: 100%;
  text-align: center;
}

.btn__loading {
  display: none;
  width: 20px;
  height: 20px;
  border: 2px solid transparent;
  border-top-color: currentColor;
  border-radius: 50%;
  animation: spin 0.6s linear infinite;
}

.btn.loading .btn__text {
  display: none;
}

.btn.loading .btn__loading {
  display: inline-block;
}

/* ===== SECTION TITLE ===== */
.section-title {
  font-family: var(--font-heading);
  font-size: var(--font-size-h2);
  font-weight: 700;
  text-align: center;
  margin-bottom: 50px;
  position: relative;
}

.section-title__accent {
  display: block;
  width: 60px;
  height: 3px;
  background: linear-gradient(90deg, var(--color-accent-gold), var(--color-accent-copper));
  margin: 16px auto 0;
  border-radius: 2px;
}

/* ===== HEADER & NAVIGATION ===== */
.header {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  z-index: var(--z-nav);
  transition: background var(--transition-medium), backdrop-filter var(--transition-medium);
  padding: 16px 0;
}

.header.scrolled {
  background: var(--color-nav-bg);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  padding: 12px 0;
  box-shadow: 0 2px 20px rgba(0, 0, 0, 0.3);
}

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

.nav__logo-text {
  font-family: var(--font-heading);
  font-size: 1.4rem;
  font-weight: 700;
  color: var(--color-text-primary);
}

.nav__menu {
  display: flex;
  gap: 32px;
}

.nav__link {
  font-size: 0.9rem;
  font-weight: 500;
  letter-spacing: 0.5px;
  text-transform: uppercase;
  color: var(--color-text-secondary);
  transition: color var(--transition-fast);
  position: relative;
}

.nav__link::after {
  content: '';
  position: absolute;
  bottom: -4px;
  left: 0;
  width: 0;
  height: 2px;
  background: var(--color-accent-gold);
  transition: width var(--transition-medium);
}

.nav__link:hover,
.nav__link.active {
  color: var(--color-accent-gold);
}

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

/* Hamburger */
.nav__toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  width: 30px;
  height: 24px;
  justify-content: center;
  z-index: 10;
}

.nav__toggle-line {
  display: block;
  width: 100%;
  height: 2px;
  background: var(--color-text-primary);
  transition: all var(--transition-medium);
  border-radius: 2px;
}

.nav__toggle.active .nav__toggle-line:nth-child(1) {
  transform: rotate(45deg) translate(5px, 5px);
}

.nav__toggle.active .nav__toggle-line:nth-child(2) {
  opacity: 0;
}

.nav__toggle.active .nav__toggle-line:nth-child(3) {
  transform: rotate(-45deg) translate(5px, -5px);
}

/* ===== HERO ===== */
.hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
}

.hero__video {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.hero__bg {
  position: absolute;
  inset: 0;
  background: url('../img/hero/hero-main.jpeg') center/cover no-repeat;
  display: none;
}

.hero__overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(
    180deg,
    rgba(0, 0, 0, 0.7) 0%,
    rgba(0, 0, 0, 0.4) 40%,
    rgba(0, 0, 0, 0.6) 100%
  );
}

.hero__content {
  position: relative;
  text-align: center;
  padding: 0 20px;
  max-width: 800px;
}

.hero__title {
  font-family: var(--font-heading);
  font-size: var(--font-size-h1);
  font-weight: 700;
  margin-bottom: 16px;
  letter-spacing: 2px;
  text-shadow: 0 2px 30px rgba(0, 0, 0, 0.5);
  animation: fadeInUp 1s ease 0.3s both;
}

.hero__subtitle {
  font-size: clamp(1rem, 2vw, 1.3rem);
  font-weight: 300;
  color: var(--color-text-secondary);
  margin-bottom: 32px;
  letter-spacing: 0.5px;
  animation: fadeInUp 1s ease 0.6s both;
}

.hero__content .btn {
  animation: fadeInUp 1s ease 0.9s both;
}

@keyframes fadeInUp {
  from {
    opacity: 0;
    transform: translateY(30px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

/* Hero bottom gradient fade into next section */
.hero::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  height: 150px;
  background: linear-gradient(to bottom, transparent, var(--color-bg-secondary));
  pointer-events: none;
}

/* ===== SERVICES ===== */
.services {
  background: var(--color-bg-secondary);
  position: relative;
}

.services::before {
  content: '';
  position: absolute;
  top: 0;
  left: 50%;
  transform: translateX(-50%);
  width: 80%;
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--color-accent-gold), transparent);
  opacity: 0.3;
}

.services__grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 30px;
}

.service-card {
  background: var(--color-bg-card);
  border: 1px solid rgba(255, 255, 255, 0.05);
  border-radius: 12px;
  padding: 40px 30px;
  text-align: center;
  transition: all var(--transition-medium);
  position: relative;
  overflow: hidden;
}

.service-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: linear-gradient(90deg, var(--color-accent-gold), var(--color-accent-copper));
  opacity: 0;
  transition: opacity var(--transition-medium);
}

.service-card:hover {
  transform: translateY(-10px);
  border-color: rgba(200, 169, 96, 0.3);
  box-shadow: 0 20px 60px rgba(0, 0, 0, 0.4), 0 0 30px rgba(200, 169, 96, 0.08);
}

.service-card:hover::before {
  opacity: 1;
}

.service-card__icon {
  width: 64px;
  height: 64px;
  margin: 0 auto 20px;
  color: var(--color-accent-gold);
}

.service-card__icon svg {
  width: 100%;
  height: 100%;
}

.service-card__title {
  font-family: var(--font-heading);
  font-size: var(--font-size-h3);
  margin-bottom: 12px;
  color: var(--color-text-primary);
}

.service-card__desc {
  font-size: 0.9rem;
  color: var(--color-text-secondary);
  line-height: 1.7;
}

/* ===== PROCESS TIMELINE ===== */
.process {
  position: relative;
}

.process::before {
  content: '';
  position: absolute;
  top: 0;
  left: 50%;
  transform: translateX(-50%);
  width: 80%;
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--color-accent-gold), transparent);
  opacity: 0.3;
}

.process__timeline {
  display: flex;
  align-items: flex-start;
  justify-content: center;
  gap: 0;
}

.process__step {
  flex: 1;
  text-align: center;
  padding: 0 20px;
  max-width: 260px;
}

.process__icon {
  position: relative;
  width: 80px;
  height: 80px;
  margin: 0 auto 20px;
  background: var(--color-bg-card);
  border: 2px solid rgba(200, 169, 96, 0.3);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all var(--transition-medium);
}

.process__step:hover .process__icon {
  border-color: var(--color-accent-gold);
  box-shadow: 0 0 30px rgba(200, 169, 96, 0.2);
  transform: scale(1.05);
}

.process__icon svg {
  width: 32px;
  height: 32px;
  color: var(--color-accent-gold);
}

.process__number {
  position: absolute;
  top: -8px;
  right: -8px;
  width: 28px;
  height: 28px;
  background: linear-gradient(135deg, var(--color-accent-gold), var(--color-accent-copper));
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.7rem;
  font-weight: 700;
  color: var(--color-bg-primary);
}

.process__connector {
  width: 60px;
  height: 2px;
  background: linear-gradient(90deg, var(--color-accent-gold), var(--color-accent-copper));
  margin-top: 40px;
  flex-shrink: 0;
  opacity: 0.4;
}

.process__title {
  font-family: var(--font-heading);
  font-size: 1.1rem;
  margin-bottom: 10px;
  color: var(--color-text-primary);
}

.process__desc {
  font-size: 0.85rem;
  color: var(--color-text-secondary);
  line-height: 1.7;
}

/* ===== MOBILE CALL BUTTON ===== */
.call-btn {
  display: none;
  position: fixed;
  bottom: 24px;
  left: 24px;
  z-index: var(--z-whatsapp);
  width: 54px;
  height: 54px;
  background: var(--color-accent-gold);
  border-radius: 50%;
  align-items: center;
  justify-content: center;
  box-shadow: 0 4px 20px rgba(200, 169, 96, 0.4);
  transition: transform var(--transition-fast);
}

.call-btn:hover {
  transform: scale(1.1);
}

.call-btn svg {
  width: 24px;
  height: 24px;
  color: var(--color-bg-primary);
}

/* ===== EXIT INTENT POPUP ===== */
.exit-popup[hidden] {
  display: none;
}

.exit-popup {
  position: fixed;
  inset: 0;
  z-index: 9000;
  display: flex;
  align-items: center;
  justify-content: center;
  animation: popupFadeIn 0.3s ease;
}

.exit-popup__backdrop {
  position: absolute;
  inset: 0;
  background: rgba(0, 0, 0, 0.8);
}

.exit-popup__content {
  position: relative;
  background: var(--color-bg-secondary);
  border: 1px solid rgba(200, 169, 96, 0.2);
  border-radius: 16px;
  padding: 40px;
  text-align: center;
  max-width: 400px;
  width: 90%;
  animation: popupSlideUp 0.4s ease;
}

.exit-popup__close {
  position: absolute;
  top: 12px;
  right: 16px;
  font-size: 1.8rem;
  color: var(--color-text-secondary);
  cursor: pointer;
  background: none;
  border: none;
  transition: color var(--transition-fast);
}

.exit-popup__close:hover {
  color: var(--color-text-primary);
}

.exit-popup__title {
  font-family: var(--font-heading);
  font-size: 1.5rem;
  margin-bottom: 12px;
  color: var(--color-text-primary);
}

.exit-popup__text {
  font-size: 0.95rem;
  color: var(--color-text-secondary);
  margin-bottom: 24px;
  line-height: 1.6;
}

@keyframes popupFadeIn {
  from { opacity: 0; }
  to { opacity: 1; }
}

@keyframes popupSlideUp {
  from { opacity: 0; transform: translateY(20px); }
  to { opacity: 1; transform: translateY(0); }
}

/* ===== PORTFOLIO ===== */
.portfolio {
  position: relative;
}

.portfolio::before {
  content: '';
  position: absolute;
  top: 0;
  left: 50%;
  transform: translateX(-50%);
  width: 80%;
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--color-accent-gold), transparent);
  opacity: 0.3;
}

.portfolio__filters {
  display: flex;
  justify-content: center;
  flex-wrap: wrap;
  gap: 12px;
  margin-bottom: 40px;
}

.portfolio__filter {
  padding: 10px 24px;
  font-size: 0.85rem;
  font-weight: 500;
  letter-spacing: 0.5px;
  text-transform: uppercase;
  color: var(--color-text-secondary);
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: 30px;
  transition: all var(--transition-fast);
}

.portfolio__filter:hover,
.portfolio__filter.active {
  color: var(--color-bg-primary);
  border-color: var(--color-accent-gold);
  background: var(--color-accent-gold);
}

.portfolio__grid {
  columns: 3;
  column-gap: 16px;
}

.portfolio__item {
  break-inside: avoid;
  margin-bottom: 16px;
  border-radius: 10px;
  overflow: hidden;
  position: relative;
  cursor: pointer;
  transition: opacity var(--transition-medium), transform var(--transition-medium), box-shadow var(--transition-medium);
}

.portfolio__item:hover {
  box-shadow: 0 10px 40px rgba(0, 0, 0, 0.5);
  transform: translateY(-4px);
}

.portfolio__item.hidden {
  display: none;
}

.portfolio__item img {
  width: 100%;
  display: block;
  transition: transform var(--transition-slow);
}

.portfolio__item:hover img {
  transform: scale(1.05);
}

.portfolio__item-overlay {
  position: absolute;
  inset: 0;
  background: rgba(0, 0, 0, 0.6);
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  transition: opacity var(--transition-medium);
}

.portfolio__item:hover .portfolio__item-overlay {
  opacity: 1;
}

.portfolio__item-category {
  font-size: 0.85rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 1px;
  color: var(--color-accent-gold);
}

/* ===== TESTIMONIALS ===== */
.testimonials {
  background: var(--color-bg-secondary);
  position: relative;
}

.testimonials::before {
  content: '';
  position: absolute;
  top: 0;
  left: 50%;
  transform: translateX(-50%);
  width: 80%;
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--color-accent-gold), transparent);
  opacity: 0.3;
}

.testimonials__grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 30px;
}

.testimonial {
  background: var(--color-bg-card);
  border: 1px solid rgba(255, 255, 255, 0.05);
  border-radius: 12px;
  padding: 36px 30px;
  position: relative;
  transition: all var(--transition-medium);
}

.testimonial::before {
  content: '\201C';
  position: absolute;
  top: 16px;
  left: 24px;
  font-size: 4rem;
  font-family: var(--font-heading);
  color: var(--color-accent-gold);
  opacity: 0.2;
  line-height: 1;
}

.testimonial:hover {
  transform: translateY(-5px);
  border-color: rgba(200, 169, 96, 0.2);
  box-shadow: 0 15px 40px rgba(0, 0, 0, 0.3);
}

.testimonial__stars {
  color: var(--color-accent-gold);
  font-size: 1.1rem;
  letter-spacing: 2px;
  margin-bottom: 16px;
}

.testimonial__text {
  font-size: 0.95rem;
  color: var(--color-text-secondary);
  line-height: 1.8;
  font-style: italic;
  margin-bottom: 20px;
}

.testimonial__author {
  display: flex;
  flex-direction: column;
  gap: 4px;
  border-top: 1px solid rgba(255, 255, 255, 0.05);
  padding-top: 16px;
}

.testimonial__name {
  font-weight: 600;
  font-size: 0.9rem;
  color: var(--color-text-primary);
}

.testimonial__project {
  font-size: 0.8rem;
  color: var(--color-accent-gold);
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

/* ===== ABOUT ===== */
.about {
  background: var(--color-bg-secondary);
  position: relative;
}

.about::before {
  content: '';
  position: absolute;
  top: 0;
  left: 50%;
  transform: translateX(-50%);
  width: 80%;
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--color-accent-gold), transparent);
  opacity: 0.3;
}

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

.about__text {
  font-size: 1rem;
  color: var(--color-text-secondary);
  margin-bottom: 20px;
  line-height: 1.8;
}

.about__values {
  margin-top: 30px;
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.about__value {
  display: flex;
  align-items: center;
  gap: 12px;
  font-size: 0.95rem;
}

.about__value-icon {
  color: var(--color-accent-gold);
  font-weight: bold;
  font-size: 1.2rem;
}

.about__stats {
  display: grid;
  grid-template-columns: 1fr;
  gap: 30px;
}

.about__stat {
  text-align: center;
  padding: 30px;
  background: var(--color-bg-card);
  border-radius: 12px;
  border: 1px solid rgba(255, 255, 255, 0.05);
  transition: all var(--transition-medium);
  position: relative;
  overflow: hidden;
}

.about__stat::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: linear-gradient(90deg, var(--color-accent-gold), var(--color-accent-copper));
}

.about__stat:hover {
  transform: translateY(-5px);
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.3);
}

.about__stat-number {
  display: block;
  font-family: var(--font-heading);
  font-size: 3rem;
  font-weight: 700;
  color: var(--color-accent-gold);
  margin-bottom: 8px;
}

.about__stat-number::after {
  content: '+';
}

.about__stat-label {
  font-size: 0.85rem;
  text-transform: uppercase;
  letter-spacing: 1px;
  color: var(--color-text-secondary);
}

/* ===== CONTACT ===== */
.contact {
  position: relative;
  background: var(--color-bg-secondary);
}

.contact::before {
  content: '';
  position: absolute;
  top: 0;
  left: 50%;
  transform: translateX(-50%);
  width: 80%;
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--color-accent-gold), transparent);
  opacity: 0.3;
}

.contact__grid {
  display: grid;
  grid-template-columns: 1.2fr 1fr;
  gap: 60px;
  align-items: start;
}

.contact__grid--centered {
  grid-template-columns: 1fr 1fr;
  align-items: start;
}

/* WhatsApp CTA Card */
.contact__whatsapp-card {
  background: var(--color-bg-card);
  border: 1px solid rgba(37, 211, 102, 0.2);
  border-radius: 16px;
  padding: 50px 40px;
  text-align: center;
  position: relative;
  overflow: hidden;
}

.contact__whatsapp-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 4px;
  background: linear-gradient(90deg, var(--color-whatsapp), #128C7E);
}

.contact__wa-icon {
  width: 70px;
  height: 70px;
  margin: 0 auto 24px;
  color: var(--color-whatsapp);
}

.contact__wa-icon svg {
  width: 100%;
  height: 100%;
}

.contact__wa-title {
  font-family: var(--font-heading);
  font-size: 1.5rem;
  margin-bottom: 12px;
  color: var(--color-text-primary);
}

.contact__wa-text {
  font-size: 0.95rem;
  color: var(--color-text-secondary);
  line-height: 1.7;
  margin-bottom: 28px;
  max-width: 320px;
  margin-left: auto;
  margin-right: auto;
}

.btn--whatsapp {
  background: var(--color-whatsapp);
  color: #fff;
  border: 2px solid var(--color-whatsapp);
  padding: 16px 40px;
  font-size: 1rem;
  border-radius: 50px;
}

.btn--whatsapp:hover {
  background: transparent;
  color: var(--color-whatsapp);
  transform: translateY(-3px);
  box-shadow: 0 8px 30px rgba(37, 211, 102, 0.3);
}

.contact__wa-hours {
  margin-top: 16px;
  font-size: 0.8rem;
  color: rgba(255, 255, 255, 0.4);
  letter-spacing: 0.5px;
}

.contact__details {
  display: flex;
  flex-direction: column;
  gap: 20px;
}

.contact__form {
  display: flex;
  flex-direction: column;
  gap: 20px;
  background: var(--color-bg-card);
  padding: 40px;
  border-radius: 12px;
  border: 1px solid rgba(255, 255, 255, 0.05);
}

.form-group {
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.form-group label {
  font-size: 0.8rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 1px;
  color: var(--color-accent-gold);
}

.form-group input,
.form-group textarea {
  background: var(--color-bg-primary);
  border: 1px solid rgba(255, 255, 255, 0.08);
  border-radius: 8px;
  padding: 16px 18px;
  font-family: var(--font-body);
  font-size: 0.95rem;
  color: var(--color-text-primary);
  transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
  resize: vertical;
}

.form-group input:focus,
.form-group textarea:focus {
  outline: none;
  border-color: var(--color-accent-gold);
  box-shadow: 0 0 0 3px rgba(200, 169, 96, 0.1), 0 4px 12px rgba(0, 0, 0, 0.2);
}

.form-group input::placeholder,
.form-group textarea::placeholder {
  color: rgba(255, 255, 255, 0.25);
}

.form-group.error input,
.form-group.error textarea {
  border-color: var(--color-error);
}

.form-error {
  font-size: 0.8rem;
  color: var(--color-error);
  min-height: 18px;
}

.form-counter {
  font-size: 0.75rem;
  color: rgba(255, 255, 255, 0.3);
  text-align: right;
  margin-top: 4px;
}

.form-counter.near-limit {
  color: var(--color-accent-gold);
}

.form-status {
  padding: 14px;
  border-radius: 8px;
  text-align: center;
  font-size: 0.9rem;
  display: none;
}

.form-status.success {
  display: block;
  background: rgba(46, 204, 113, 0.1);
  color: var(--color-success);
  border: 1px solid var(--color-success);
}

.form-status.error {
  display: block;
  background: rgba(231, 76, 60, 0.1);
  color: var(--color-error);
  border: 1px solid var(--color-error);
}

.contact__info {
  display: flex;
  flex-direction: column;
  gap: 28px;
}

.contact__info-item {
  display: flex;
  gap: 16px;
  align-items: center;
  padding: 20px;
  background: var(--color-bg-card);
  border-radius: 10px;
  border: 1px solid rgba(255, 255, 255, 0.05);
  transition: all var(--transition-medium);
}

.contact__info-item:hover {
  border-color: rgba(200, 169, 96, 0.2);
  transform: translateX(5px);
}

.contact__icon {
  width: 40px;
  height: 40px;
  flex-shrink: 0;
  color: var(--color-accent-gold);
  background: rgba(200, 169, 96, 0.1);
  border-radius: 50%;
  padding: 8px;
}

.contact__info-item h4 {
  font-size: 0.95rem;
  margin-bottom: 4px;
  color: var(--color-text-primary);
}

.contact__info-item p {
  font-size: 0.9rem;
  color: var(--color-text-secondary);
}

.contact__map {
  margin-top: 8px;
  border-radius: 12px;
  overflow: hidden;
  border: 1px solid rgba(255, 255, 255, 0.05);
}

/* ===== FOOTER ===== */
.footer {
  background: linear-gradient(180deg, #0a0a0a, #050505);
  padding: 60px 0 30px;
  border-top: 1px solid rgba(200, 169, 96, 0.15);
  position: relative;
}

.footer__grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr;
  gap: 40px;
  margin-bottom: 40px;
}

.footer__logo {
  font-family: var(--font-heading);
  font-size: 1.4rem;
  margin-bottom: 12px;
}

.footer__desc {
  font-size: 0.9rem;
  color: var(--color-text-secondary);
  margin-bottom: 8px;
}

.footer__rut {
  font-size: 0.8rem;
  color: rgba(255, 255, 255, 0.4);
}

.footer__links h4,
.footer__contact h4 {
  font-size: 0.9rem;
  text-transform: uppercase;
  letter-spacing: 1px;
  margin-bottom: 16px;
  color: var(--color-accent-gold);
}

.footer__links ul {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.footer__links a {
  font-size: 0.9rem;
  color: var(--color-text-secondary);
  transition: color var(--transition-fast);
}

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

.footer__contact p {
  font-size: 0.9rem;
  color: var(--color-text-secondary);
  margin-bottom: 8px;
}

.footer__bottom {
  border-top: 1px solid rgba(255, 255, 255, 0.05);
  padding-top: 24px;
  text-align: center;
}

.footer__bottom p {
  font-size: 0.8rem;
  color: rgba(255, 255, 255, 0.4);
}

/* ===== WHATSAPP BUTTON ===== */
.whatsapp-btn {
  position: fixed;
  bottom: 24px;
  right: 24px;
  z-index: var(--z-whatsapp);
  width: 60px;
  height: 60px;
  background: var(--color-whatsapp);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 4px 20px rgba(37, 211, 102, 0.4);
  animation: pulse 2s infinite;
  transition: transform var(--transition-fast);
}

.whatsapp-btn:hover {
  transform: scale(1.1);
}

.whatsapp-btn svg {
  width: 32px;
  height: 32px;
  color: #fff;
}

.whatsapp-btn__tooltip {
  position: absolute;
  right: 70px;
  top: 50%;
  transform: translateY(-50%);
  background: var(--color-bg-card);
  color: var(--color-text-primary);
  padding: 8px 14px;
  border-radius: 6px;
  font-size: 0.8rem;
  white-space: nowrap;
  opacity: 0;
  pointer-events: none;
  transition: opacity var(--transition-fast);
  box-shadow: var(--shadow-card);
}

.whatsapp-btn:hover .whatsapp-btn__tooltip {
  opacity: 1;
}

/* ===== LIGHTBOX ===== */
.lightbox {
  position: fixed;
  inset: 0;
  z-index: var(--z-lightbox);
  background: rgba(0, 0, 0, 0.92);
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  transition: opacity var(--transition-medium);
}

.lightbox[hidden] {
  display: none;
}

.lightbox.active {
  opacity: 1;
}

.lightbox__content {
  max-width: 90vw;
  max-height: 90vh;
}

.lightbox__img {
  max-width: 90vw;
  max-height: 85vh;
  object-fit: contain;
  border-radius: 4px;
}

.lightbox__close,
.lightbox__prev,
.lightbox__next {
  position: absolute;
  color: var(--color-text-primary);
  font-size: 2rem;
  padding: 12px;
  transition: color var(--transition-fast);
  background: none;
  border: none;
  cursor: pointer;
}

.lightbox__close:hover,
.lightbox__prev:hover,
.lightbox__next:hover {
  color: var(--color-accent-gold);
}

.lightbox__close {
  top: 20px;
  right: 20px;
  font-size: 2.5rem;
}

.lightbox__prev {
  left: 20px;
  top: 50%;
  transform: translateY(-50%);
}

.lightbox__next {
  right: 20px;
  top: 50%;
  transform: translateY(-50%);
}

/* ===== ANIMATIONS ===== */
@keyframes pulse {
  0% { box-shadow: 0 0 0 0 rgba(37, 211, 102, 0.5); }
  70% { box-shadow: 0 0 0 14px rgba(37, 211, 102, 0); }
  100% { box-shadow: 0 0 0 0 rgba(37, 211, 102, 0); }
}

@keyframes spin {
  to { transform: rotate(360deg); }
}

/* Scroll Animations */
.fade-in {
  opacity: 0;
  transform: translateY(40px);
  transition: opacity 0.7s cubic-bezier(0.4, 0, 0.2, 1), transform 0.7s cubic-bezier(0.4, 0, 0.2, 1);
}

.fade-in.visible {
  opacity: 1;
  transform: translateY(0);
}

/* Stagger animation for service cards */
.service-card:nth-child(1) { transition-delay: 0ms; }
.service-card:nth-child(2) { transition-delay: 100ms; }
.service-card:nth-child(3) { transition-delay: 200ms; }
.service-card:nth-child(4) { transition-delay: 300ms; }
.service-card:nth-child(5) { transition-delay: 400ms; }
.service-card:nth-child(6) { transition-delay: 500ms; }

/* No-JS fallback: show everything */
.no-js .fade-in {
  opacity: 1;
  transform: none;
}

/* ===== RESPONSIVE ===== */
@media (max-width: 1024px) {
  .portfolio__grid {
    columns: 2;
  }

  .about__grid {
    grid-template-columns: 1fr;
    gap: 40px;
  }

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

@media (max-width: 768px) {
  /* Navigation */
  .nav__toggle {
    display: flex;
  }

  .nav__menu {
    position: fixed;
    top: 0;
    right: -100%;
    width: 75%;
    max-width: 300px;
    height: 100vh;
    background: var(--color-bg-secondary);
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 28px;
    transition: right var(--transition-medium);
    box-shadow: -4px 0 20px rgba(0, 0, 0, 0.5);
  }

  .nav__menu.active {
    right: 0;
  }

  .nav__link {
    font-size: 1.1rem;
  }

  /* Hero mobile */
  .hero__bg {
    background-attachment: scroll;
  }

  .hero__title {
    font-size: clamp(2rem, 8vw, 3rem);
  }

  .hero__subtitle {
    font-size: 1rem;
    padding: 0 10px;
  }

  .hero__content .btn {
    padding: 12px 28px;
    font-size: 0.85rem;
  }

  /* Services */
  .services__grid {
    grid-template-columns: 1fr 1fr;
    gap: 16px;
  }

  .service-card {
    padding: 24px 16px;
  }

  .service-card__icon {
    width: 48px;
    height: 48px;
    margin-bottom: 14px;
  }

  .service-card__title {
    font-size: 1rem;
  }

  .service-card__desc {
    font-size: 0.8rem;
  }

  /* Portfolio */
  .portfolio__grid {
    columns: 2;
    column-gap: 10px;
  }

  .portfolio__item {
    margin-bottom: 10px;
    border-radius: 6px;
  }

  .portfolio__filters {
    gap: 8px;
    margin-bottom: 24px;
  }

  .portfolio__filter {
    padding: 8px 16px;
    font-size: 0.75rem;
  }

  /* About */
  .about__stats {
    grid-template-columns: repeat(3, 1fr);
    gap: 12px;
  }

  .about__stat {
    padding: 20px 10px;
  }

  .about__stat-number {
    font-size: 2rem;
  }

  .about__stat-label {
    font-size: 0.7rem;
  }

  /* Contact */
  .contact__grid,
  .contact__grid--centered {
    grid-template-columns: 1fr;
    gap: 40px;
  }

  .contact__whatsapp-card {
    padding: 36px 24px;
  }

  .contact__info-item {
    padding: 16px;
  }

  /* Footer */
  .footer__grid {
    grid-template-columns: 1fr;
    gap: 30px;
    text-align: center;
  }

  .footer__links ul {
    align-items: center;
  }

  /* Section spacing */
  .section-title {
    margin-bottom: 32px;
    font-size: clamp(1.5rem, 5vw, 2rem);
  }

  /* WhatsApp button */
  .whatsapp-btn {
    bottom: 16px;
    right: 16px;
    width: 54px;
    height: 54px;
  }

  .whatsapp-btn svg {
    width: 28px;
    height: 28px;
  }

  .whatsapp-btn__tooltip {
    display: none;
  }

  /* Call button - show on mobile */
  .call-btn {
    display: flex;
    bottom: 16px;
    left: 16px;
    width: 50px;
    height: 50px;
  }

  /* Process timeline mobile */
  .process__timeline {
    flex-direction: column;
    align-items: center;
    gap: 0;
  }

  .process__step {
    max-width: 100%;
    padding: 0;
    margin-bottom: 8px;
  }

  .process__connector {
    width: 2px;
    height: 30px;
    margin: 0 auto;
  }

  /* Lightbox mobile */
  .lightbox__img {
    max-width: 95vw;
    max-height: 80vh;
  }

  .lightbox__close {
    top: 10px;
    right: 10px;
    font-size: 2rem;
  }

  .lightbox__prev {
    left: 8px;
    font-size: 1.5rem;
  }

  .lightbox__next {
    right: 8px;
    font-size: 1.5rem;
  }
}

@media (max-width: 480px) {
  .portfolio__grid {
    columns: 2;
    column-gap: 8px;
  }

  .portfolio__item {
    margin-bottom: 8px;
  }

  .services__grid {
    grid-template-columns: 1fr 1fr;
    gap: 10px;
  }

  .service-card {
    padding: 20px 12px;
  }

  .service-card__icon {
    width: 36px;
    height: 36px;
  }

  .service-card__desc {
    display: none;
  }

  .about__stats {
    grid-template-columns: repeat(3, 1fr);
    gap: 8px;
  }

  .about__stat {
    padding: 16px 8px;
  }

  .about__stat-number {
    font-size: 1.6rem;
  }

  .about__stat-label {
    font-size: 0.65rem;
    letter-spacing: 0;
  }

  .about__text {
    font-size: 0.9rem;
  }

  .about__value {
    font-size: 0.85rem;
  }

  .hero__content {
    padding: 0 16px;
  }

  .container {
    padding: 0 16px;
  }

  .footer {
    padding: 40px 0 20px;
  }
}

@media (max-width: 360px) {
  .portfolio__filters {
    justify-content: flex-start;
    overflow-x: auto;
    flex-wrap: nowrap;
    padding-bottom: 8px;
    -webkit-overflow-scrolling: touch;
  }

  .portfolio__filter {
    flex-shrink: 0;
  }

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

/* ===== REDUCED MOTION ===== */
@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }

  .fade-in {
    opacity: 1;
    transform: none;
  }

  html {
    scroll-behavior: auto;
  }
}

/* ===== FOCUS STYLES ===== */
:focus-visible {
  outline: 2px solid var(--color-accent-gold);
  outline-offset: 3px;
}

a:focus-visible,
button:focus-visible {
  outline: 2px solid var(--color-accent-gold);
  outline-offset: 3px;
}