/* =============================================================
   MODELA Y REFORMA — styles.css
   Mobile-first responsive design
   ============================================================= */

/* =============================================================
   CSS CUSTOM PROPERTIES
   ============================================================= */
:root {
  /* Brand colors */
  --color-primary: #2B5EA7;
  --color-primary-dark: #1A3A6B;
  --color-primary-light: #5B9BD5;
  --color-accent: #D4A843;

  /* Neutrals */
  --color-dark: #2D2D2D;
  --color-body: #555555;
  --color-muted: #888888;
  --color-border: #E2E5EA;
  --color-light: #F7F8FA;
  --color-white: #FFFFFF;

  /* Feedback */
  --color-success: #16A34A;
  --color-error: #DC2626;

  /* Typography */
  --font-family: 'Plus Jakarta Sans', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  --font-size-xs: 0.75rem;
  --font-size-sm: 0.875rem;
  --font-size-base: 1rem;
  --font-size-lg: 1.125rem;
  --font-size-xl: 1.25rem;
  --font-size-2xl: 1.5rem;
  --font-size-3xl: 2rem;
  --font-size-4xl: 2.5rem;
  --font-size-5xl: 3.25rem;

  /* Spacing */
  --space-1: 0.25rem;
  --space-2: 0.5rem;
  --space-3: 0.75rem;
  --space-4: 1rem;
  --space-5: 1.25rem;
  --space-6: 1.5rem;
  --space-8: 2rem;
  --space-10: 2.5rem;
  --space-12: 3rem;
  --space-16: 4rem;
  --space-20: 5rem;
  --space-24: 6rem;

  /* Misc */
  --radius-sm: 0.375rem;
  --radius-md: 0.5rem;
  --radius-lg: 0.75rem;
  --radius-xl: 1rem;
  --radius-full: 9999px;
  --shadow-sm: 0 1px 3px rgba(0,0,0,0.08);
  --shadow-md: 0 4px 12px rgba(0,0,0,0.1);
  --shadow-lg: 0 8px 30px rgba(0,0,0,0.12);
  --shadow-xl: 0 16px 48px rgba(0,0,0,0.15);
  --transition: 0.3s ease;
  --transition-slow: 0.5s ease;
  --nav-height: 72px;
}

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

html {
  scroll-behavior: smooth;
  scroll-padding-top: var(--nav-height);
  -webkit-text-size-adjust: 100%;
}

body {
  font-family: var(--font-family);
  font-size: var(--font-size-base);
  line-height: 1.7;
  color: var(--color-body);
  background: var(--color-white);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  overflow-x: hidden;
}

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

a {
  color: var(--color-primary);
  text-decoration: none;
  transition: color var(--transition);
}

a:hover { color: var(--color-primary-dark); }

a:focus-visible,
button:focus-visible,
input:focus-visible,
select:focus-visible,
textarea:focus-visible {
  outline: 2px solid var(--color-primary);
  outline-offset: 2px;
}

ul { list-style: none; }

h1, h2, h3, h4, h5, h6 {
  color: var(--color-dark);
  line-height: 1.2;
  font-weight: 700;
}

/* =============================================================
   UTILITY / LAYOUT
   ============================================================= */
.container {
  width: 100%;
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 var(--space-5);
}

.section {
  padding: var(--space-16) 0;
}

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

.section--dark {
  background: linear-gradient(135deg, var(--color-primary-dark) 0%, var(--color-primary) 100%);
  color: var(--color-white);
}

.section__header {
  text-align: center;
  max-width: 640px;
  margin: 0 auto var(--space-12);
}

.section__label {
  display: inline-block;
  font-size: var(--font-size-sm);
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--color-primary);
  margin-bottom: var(--space-3);
}

.section__label--light { color: var(--color-primary-light); }

.section__title {
  font-size: var(--font-size-3xl);
  margin-bottom: var(--space-4);
}

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

.section__subtitle {
  font-size: var(--font-size-lg);
  color: var(--color-muted);
  line-height: 1.6;
}

.section__subtitle--light { color: rgba(255,255,255,0.8); }

/* =============================================================
   BUTTONS
   ============================================================= */
.btn {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  font-family: var(--font-family);
  font-size: var(--font-size-sm);
  font-weight: 600;
  padding: 0.75rem 1.5rem;
  border-radius: var(--radius-md);
  border: 2px solid transparent;
  cursor: pointer;
  transition: all var(--transition);
  text-align: center;
  white-space: nowrap;
}

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

.btn--primary:hover {
  background: var(--color-primary-dark);
  border-color: var(--color-primary-dark);
  color: var(--color-white);
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
}

.btn--outline-white {
  background: transparent;
  color: var(--color-white);
  border-color: rgba(255,255,255,0.4);
}

.btn--outline-white:hover {
  background: var(--color-white);
  color: var(--color-primary-dark);
  border-color: var(--color-white);
  transform: translateY(-2px);
}

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

.btn--white:hover {
  background: var(--color-light);
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
  color: var(--color-primary-dark);
}

.btn--lg {
  padding: 1rem 2rem;
  font-size: var(--font-size-base);
}

/* =============================================================
   NAVIGATION
   ============================================================= */
.nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  height: var(--nav-height);
  transition: all var(--transition);
  background: transparent;
}

.nav.is-scrolled {
  background: rgba(255,255,255,0.97);
  backdrop-filter: blur(12px);
  box-shadow: var(--shadow-sm);
}

.nav__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 100%;
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 var(--space-5);
}

.nav__logo img {
  height: 44px;
  width: auto;
  transition: var(--transition);
}

.nav__links {
  display: none;
  align-items: center;
  gap: var(--space-1);
}

.nav__link {
  font-size: var(--font-size-sm);
  font-weight: 500;
  color: var(--color-white);
  padding: var(--space-2) var(--space-3);
  border-radius: var(--radius-sm);
  transition: all var(--transition);
}

.nav.is-scrolled .nav__link { color: var(--color-body); }
.nav__link:hover { color: var(--color-primary); background: rgba(43,94,167,0.08); }
.nav.is-scrolled .nav__link:hover { color: var(--color-primary); }

.nav__cta {
  display: none;
  font-size: var(--font-size-sm);
  font-weight: 600;
  padding: 0.6rem 1.25rem;
  border-radius: var(--radius-md);
  background: var(--color-primary);
  color: var(--color-white);
  transition: all var(--transition);
}

.nav__cta:hover {
  background: var(--color-primary-dark);
  color: var(--color-white);
  transform: translateY(-1px);
}

/* Hamburger */
.nav__toggle {
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  gap: 5px;
  width: 40px;
  height: 40px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 0;
  z-index: 1001;
}

.nav__toggle span {
  display: block;
  width: 24px;
  height: 2px;
  background: var(--color-white);
  border-radius: 2px;
  transition: all var(--transition);
}

.nav.is-scrolled .nav__toggle span { background: var(--color-dark); }

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

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

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

/* Mobile nav overlay */
.nav__mobile {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  z-index: 999;
  background: rgba(255,255,255,0.98);
  backdrop-filter: blur(16px);
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  visibility: hidden;
  transition: all var(--transition);
}

.nav__mobile.is-open {
  opacity: 1;
  visibility: visible;
}

.nav__mobile-links {
  text-align: center;
  margin-bottom: var(--space-8);
}

.nav__mobile-link {
  display: block;
  font-size: var(--font-size-2xl);
  font-weight: 600;
  color: var(--color-dark);
  padding: var(--space-3) 0;
  transition: color var(--transition);
}

.nav__mobile-link:hover { color: var(--color-primary); }

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

.hero__bg {
  position: absolute;
  inset: 0;
}

.hero__bg img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center;
}

.hero__overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(
    135deg,
    rgba(26,58,107,0.85) 0%,
    rgba(43,94,167,0.6) 50%,
    rgba(0,0,0,0.4) 100%
  );
}

.hero__content {
  position: relative;
  z-index: 2;
  padding-top: calc(var(--nav-height) + var(--space-8));
  padding-bottom: var(--space-12);
}

.hero__label {
  display: inline-block;
  font-size: var(--font-size-sm);
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.15em;
  color: var(--color-primary-light);
  margin-bottom: var(--space-4);
  padding: var(--space-2) var(--space-4);
  border: 1px solid rgba(91,155,213,0.4);
  border-radius: var(--radius-full);
  background: rgba(91,155,213,0.1);
}

.hero__title {
  font-size: var(--font-size-4xl);
  font-weight: 800;
  color: var(--color-white);
  margin-bottom: var(--space-6);
  line-height: 1.15;
}

.hero__title--accent {
  color: var(--color-primary-light);
}

.hero__desc {
  font-size: var(--font-size-lg);
  color: rgba(255,255,255,0.85);
  max-width: 560px;
  margin-bottom: var(--space-8);
  line-height: 1.6;
}

.hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-4);
}

.hero__scroll {
  position: absolute;
  bottom: var(--space-8);
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--space-2);
  color: rgba(255,255,255,0.5);
  font-size: var(--font-size-xs);
  text-transform: uppercase;
  letter-spacing: 0.2em;
  display: none;
}

.hero__scroll-line {
  width: 1px;
  height: 40px;
  background: linear-gradient(to bottom, rgba(255,255,255,0.5), transparent);
  animation: scrollLine 1.5s ease-in-out infinite;
}

@keyframes scrollLine {
  0%, 100% { opacity: 0.3; transform: scaleY(0.5); }
  50% { opacity: 1; transform: scaleY(1); }
}

/* =============================================================
   STATS
   ============================================================= */
.stats {
  background: var(--color-white);
  padding: var(--space-12) 0;
  border-bottom: 1px solid var(--color-border);
}

.stats__grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--space-8);
  text-align: center;
}

.stats__item {
  padding: var(--space-4);
}

.stats__number {
  font-size: var(--font-size-4xl);
  font-weight: 800;
  color: var(--color-primary);
  line-height: 1;
}

.stats__plus {
  font-size: var(--font-size-2xl);
  font-weight: 800;
  color: var(--color-primary);
}

.stats__label {
  display: block;
  font-size: var(--font-size-sm);
  color: var(--color-muted);
  margin-top: var(--space-2);
  font-weight: 500;
}

/* =============================================================
   ABOUT
   ============================================================= */
.about__grid {
  display: grid;
  gap: var(--space-12);
}

.about__image {
  position: relative;
  border-radius: var(--radius-xl);
  overflow: hidden;
  box-shadow: var(--shadow-lg);
}

.about__image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  min-height: 300px;
}

.about__image-badge {
  position: absolute;
  bottom: var(--space-6);
  right: var(--space-6);
  background: var(--color-primary);
  color: var(--color-white);
  padding: var(--space-4) var(--space-5);
  border-radius: var(--radius-lg);
  text-align: center;
  box-shadow: var(--shadow-lg);
}

.about__badge-number {
  display: block;
  font-size: var(--font-size-3xl);
  font-weight: 800;
  line-height: 1;
}

.about__badge-text {
  font-size: var(--font-size-sm);
  font-weight: 500;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.about__text {
  font-size: var(--font-size-base);
  margin-bottom: var(--space-4);
  line-height: 1.8;
}

.about__features {
  margin: var(--space-6) 0 var(--space-8);
  display: grid;
  gap: var(--space-3);
}

.about__feature {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  font-weight: 500;
  color: var(--color-dark);
}

.about__feature svg {
  color: var(--color-success);
  flex-shrink: 0;
}

/* =============================================================
   SERVICES
   ============================================================= */
.services__grid {
  display: grid;
  gap: var(--space-6);
}

.service-card {
  background: var(--color-white);
  padding: var(--space-8);
  border-radius: var(--radius-xl);
  box-shadow: var(--shadow-sm);
  border: 1px solid var(--color-border);
  transition: all var(--transition);
  display: flex;
  flex-direction: column;
}

.service-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-lg);
  border-color: var(--color-primary-light);
}

.service-card__icon {
  width: 56px;
  height: 56px;
  border-radius: var(--radius-lg);
  background: linear-gradient(135deg, rgba(43,94,167,0.08), rgba(91,155,213,0.12));
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--color-primary);
  margin-bottom: var(--space-5);
  transition: all var(--transition);
}

.service-card:hover .service-card__icon {
  background: var(--color-primary);
  color: var(--color-white);
}

.service-card__title {
  font-size: var(--font-size-xl);
  margin-bottom: var(--space-3);
}

.service-card__desc {
  font-size: var(--font-size-sm);
  color: var(--color-body);
  flex-grow: 1;
  margin-bottom: var(--space-5);
}

.service-card__link {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  font-size: var(--font-size-sm);
  font-weight: 600;
  color: var(--color-primary);
  transition: all var(--transition);
}

.service-card__link:hover {
  gap: var(--space-3);
  color: var(--color-primary-dark);
}

/* =============================================================
   GALLERY
   ============================================================= */
.gallery__filters {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: var(--space-2);
  margin-bottom: var(--space-10);
}

.gallery__filter {
  font-family: var(--font-family);
  font-size: var(--font-size-sm);
  font-weight: 500;
  padding: 0.5rem 1.25rem;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-full);
  background: var(--color-white);
  color: var(--color-body);
  cursor: pointer;
  transition: all var(--transition);
}

.gallery__filter:hover {
  border-color: var(--color-primary);
  color: var(--color-primary);
}

.gallery__filter.is-active {
  background: var(--color-primary);
  color: var(--color-white);
  border-color: var(--color-primary);
}

.gallery__grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: var(--space-4);
}

.gallery__item {
  position: relative;
  border-radius: var(--radius-lg);
  overflow: hidden;
  cursor: pointer;
  aspect-ratio: 4/3;
  transition: all var(--transition-slow);
}

.gallery__item.is-hidden {
  display: none;
}

.gallery__item img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform var(--transition-slow);
}

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

.gallery__overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(to top, rgba(26,58,107,0.8) 0%, transparent 60%);
  display: flex;
  flex-direction: column;
  justify-content: flex-end;
  padding: var(--space-5);
  opacity: 0;
  transition: opacity var(--transition);
}

.gallery__item:hover .gallery__overlay { opacity: 1; }

.gallery__project {
  font-weight: 700;
  color: var(--color-white);
  font-size: var(--font-size-base);
}

.gallery__category {
  font-size: var(--font-size-sm);
  color: rgba(255,255,255,0.7);
}

/* =============================================================
   LIGHTBOX
   ============================================================= */
.lightbox {
  position: fixed;
  inset: 0;
  z-index: 10000;
  background: rgba(0,0,0,0.92);
  backdrop-filter: blur(8px);
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  visibility: hidden;
  transition: all var(--transition);
}

.lightbox[hidden] {
  display: none;
}

.lightbox.is-open {
  opacity: 1;
  visibility: visible;
  display: flex;
}

.lightbox__close {
  position: absolute;
  top: var(--space-5);
  right: var(--space-5);
  background: none;
  border: none;
  color: var(--color-white);
  cursor: pointer;
  padding: var(--space-2);
  opacity: 0.7;
  transition: opacity var(--transition);
  z-index: 10001;
}

.lightbox__close:hover { opacity: 1; }

.lightbox__nav {
  position: absolute;
  top: 50%;
  transform: translateY(-50%);
  background: rgba(255,255,255,0.1);
  border: none;
  color: var(--color-white);
  cursor: pointer;
  padding: var(--space-4);
  border-radius: var(--radius-full);
  transition: all var(--transition);
  z-index: 10001;
}

.lightbox__nav:hover { background: rgba(255,255,255,0.2); }
.lightbox__nav--prev { left: var(--space-4); }
.lightbox__nav--next { right: var(--space-4); }

.lightbox__content {
  max-width: 90vw;
  max-height: 80vh;
  display: flex;
  align-items: center;
  justify-content: center;
}

.lightbox__img {
  max-width: 100%;
  max-height: 80vh;
  object-fit: contain;
  border-radius: var(--radius-md);
}

.lightbox__caption {
  position: absolute;
  bottom: var(--space-8);
  left: 50%;
  transform: translateX(-50%);
  color: rgba(255,255,255,0.7);
  font-size: var(--font-size-sm);
  text-align: center;
  max-width: 80%;
}

/* =============================================================
   PROCESS
   ============================================================= */
.process__grid {
  display: grid;
  gap: var(--space-8);
}

.process__item {
  text-align: center;
  position: relative;
}

.process__number {
  font-size: var(--font-size-xs);
  font-weight: 800;
  color: var(--color-primary-light);
  letter-spacing: 0.1em;
  margin-bottom: var(--space-3);
}

.process__icon {
  width: 64px;
  height: 64px;
  border-radius: var(--radius-full);
  background: rgba(255,255,255,0.1);
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto var(--space-5);
  color: var(--color-white);
  border: 2px solid rgba(255,255,255,0.2);
  transition: all var(--transition);
}

.process__item:hover .process__icon {
  background: var(--color-white);
  color: var(--color-primary);
  transform: scale(1.05);
}

.process__title {
  color: var(--color-white);
  font-size: var(--font-size-xl);
  margin-bottom: var(--space-3);
}

.process__desc {
  color: rgba(255,255,255,0.75);
  font-size: var(--font-size-sm);
  line-height: 1.7;
  max-width: 280px;
  margin: 0 auto;
}

/* =============================================================
   TESTIMONIALS
   ============================================================= */
.testimonials__grid {
  display: grid;
  gap: var(--space-6);
}

.testimonial {
  background: var(--color-light);
  padding: var(--space-8);
  border-radius: var(--radius-xl);
  transition: all var(--transition);
  border: 1px solid transparent;
}

.testimonial:hover {
  border-color: var(--color-primary-light);
  box-shadow: var(--shadow-md);
}

.testimonial__stars {
  display: flex;
  gap: 2px;
  color: var(--color-accent);
  margin-bottom: var(--space-4);
}

.testimonial__text {
  font-size: var(--font-size-base);
  font-style: normal;
  line-height: 1.8;
  color: var(--color-body);
  margin-bottom: var(--space-6);
}

.testimonial__author {
  display: flex;
  align-items: center;
  gap: var(--space-3);
}

.testimonial__avatar {
  width: 44px;
  height: 44px;
  border-radius: var(--radius-full);
  background: var(--color-primary);
  color: var(--color-white);
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
  font-size: var(--font-size-sm);
}

.testimonial__name {
  display: block;
  font-weight: 600;
  font-style: normal;
  color: var(--color-dark);
  font-size: var(--font-size-sm);
}

.testimonial__location {
  font-size: var(--font-size-xs);
  color: var(--color-muted);
}

/* =============================================================
   CONTACT
   ============================================================= */
.contact__cards {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: var(--space-4);
  margin-bottom: var(--space-12);
}

.contact-item {
  display: flex;
  align-items: center;
  gap: var(--space-4);
  background: var(--color-white);
  padding: var(--space-5);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-sm);
  border: 1px solid var(--color-border);
  transition: all var(--transition);
}

.contact-item:hover {
  box-shadow: var(--shadow-md);
  border-color: var(--color-primary-light);
}

.contact-item__icon {
  width: 44px;
  height: 44px;
  border-radius: var(--radius-md);
  background: linear-gradient(135deg, rgba(43,94,167,0.08), rgba(91,155,213,0.12));
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--color-primary);
  flex-shrink: 0;
}

.contact-item__label {
  font-size: var(--font-size-xs);
  color: var(--color-muted);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  font-weight: 500;
}

.contact-item__value {
  font-weight: 600;
  color: var(--color-dark);
  font-size: var(--font-size-sm);
}

.contact-item__value a { color: var(--color-dark); }
.contact-item__value a:hover { color: var(--color-primary); }

.contacto-grid {
  display: grid;
  gap: var(--space-10);
}

/* Form */
.form-wrapper {
  background: var(--color-white);
  padding: var(--space-8);
  border-radius: var(--radius-xl);
  box-shadow: var(--shadow-md);
  border: 1px solid var(--color-border);
}

.form__title {
  font-size: var(--font-size-2xl);
  margin-bottom: var(--space-2);
}

.form__subtitle {
  color: var(--color-muted);
  font-size: var(--font-size-sm);
  margin-bottom: var(--space-6);
}

.form__grid {
  display: grid;
  gap: var(--space-5);
}

.form__group { display: flex; flex-direction: column; }
.form__group--full { grid-column: 1 / -1; }

.form__label {
  font-size: var(--font-size-sm);
  font-weight: 600;
  color: var(--color-dark);
  margin-bottom: var(--space-2);
}

.form__input,
.form__select,
.form__textarea {
  font-family: var(--font-family);
  font-size: var(--font-size-base);
  padding: 0.75rem 1rem;
  border: 1.5px solid var(--color-border);
  border-radius: var(--radius-md);
  background: var(--color-white);
  color: var(--color-dark);
  transition: border-color var(--transition), box-shadow var(--transition);
  width: 100%;
}

.form__input:focus,
.form__select:focus,
.form__textarea:focus {
  border-color: var(--color-primary);
  box-shadow: 0 0 0 3px rgba(43,94,167,0.12);
  outline: none;
}

.form__textarea { resize: vertical; min-height: 120px; }

.form__select {
  appearance: none;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 24 24' fill='none' stroke='%23888' stroke-width='2'%3E%3Cpolyline points='6 9 12 15 18 9'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 1rem center;
  padding-right: 2.5rem;
}

.form__checkbox-group {
  display: flex;
  align-items: flex-start;
  gap: var(--space-3);
}

.form__checkbox {
  width: 18px;
  height: 18px;
  margin-top: 3px;
  flex-shrink: 0;
  accent-color: var(--color-primary);
}

.form__checkbox-label {
  font-size: var(--font-size-sm);
  color: var(--color-body);
  line-height: 1.5;
}

.form__checkbox-label a {
  color: var(--color-primary);
  text-decoration: underline;
}

.form__error {
  font-size: var(--font-size-xs);
  color: var(--color-error);
  margin-top: var(--space-1);
  display: none;
}

.form__error.is-visible { display: block; }

.form__submit {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-2);
  width: 100%;
  font-family: var(--font-family);
  font-size: var(--font-size-base);
  font-weight: 600;
  padding: 0.875rem 2rem;
  border: none;
  border-radius: var(--radius-md);
  background: var(--color-primary);
  color: var(--color-white);
  cursor: pointer;
  transition: all var(--transition);
}

.form__submit:hover {
  background: var(--color-primary-dark);
  transform: translateY(-1px);
  box-shadow: var(--shadow-md);
}

.form__submit.is-loading .btn-text { opacity: 0; }
.form__submit.is-loading .spinner { display: block; }

.spinner {
  display: none;
  width: 20px;
  height: 20px;
  border: 2px solid rgba(255,255,255,0.3);
  border-top-color: var(--color-white);
  border-radius: 50%;
  animation: spin 0.6s linear infinite;
  position: absolute;
}

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

.btn-text {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
}

.form__honeypot {
  position: absolute;
  left: -9999px;
  height: 0;
  overflow: hidden;
  opacity: 0;
}

.form__feedback {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  padding: var(--space-4);
  border-radius: var(--radius-md);
  font-size: var(--font-size-sm);
  margin-top: var(--space-4);
  opacity: 0;
  transform: translateY(8px);
  transition: all var(--transition);
}

.form__feedback.is-visible {
  opacity: 1;
  transform: translateY(0);
}

.form__feedback--success {
  background: rgba(22,163,74,0.08);
  color: var(--color-success);
  border: 1px solid rgba(22,163,74,0.2);
}

.form__feedback--error {
  background: rgba(220,38,38,0.08);
  color: var(--color-error);
  border: 1px solid rgba(220,38,38,0.2);
}

/* Map */
.map-wrapper {
  border-radius: var(--radius-xl);
  overflow: hidden;
  box-shadow: var(--shadow-md);
  border: 1px solid var(--color-border);
}

.map-wrapper iframe {
  display: block;
  width: 100%;
  min-height: 300px;
}

.tag {
  display: inline-block;
  font-size: var(--font-size-xs);
  font-weight: 600;
  padding: 0.3rem 0.75rem;
  border-radius: var(--radius-full);
  background: rgba(43,94,167,0.08);
  color: var(--color-primary);
}

/* =============================================================
   CTA SECTION
   ============================================================= */
.cta-section {
  background: linear-gradient(135deg, var(--color-primary-dark) 0%, var(--color-primary) 100%);
  padding: var(--space-16) 0;
  text-align: center;
}

.cta__title {
  font-size: var(--font-size-3xl);
  color: var(--color-white);
  margin-bottom: var(--space-4);
}

.cta__desc {
  font-size: var(--font-size-lg);
  color: rgba(255,255,255,0.8);
  max-width: 480px;
  margin: 0 auto var(--space-8);
}

.cta__actions {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: var(--space-4);
}

/* =============================================================
   FOOTER
   ============================================================= */
.footer {
  background: var(--color-dark);
  color: rgba(255,255,255,0.7);
  padding: var(--space-16) 0 var(--space-8);
}

.footer__grid {
  display: grid;
  gap: var(--space-10);
  margin-bottom: var(--space-12);
}

.footer__logo {
  height: 44px;
  width: auto;
  margin-bottom: var(--space-4);
  border-radius: var(--radius-sm);
}

.footer__brand-desc {
  font-size: var(--font-size-sm);
  line-height: 1.7;
  max-width: 280px;
}

.footer__col-title {
  font-weight: 700;
  color: var(--color-white);
  font-size: var(--font-size-sm);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  margin-bottom: var(--space-4);
}

.footer__links { display: flex; flex-direction: column; gap: var(--space-2); }

.footer__link {
  font-size: var(--font-size-sm);
  color: rgba(255,255,255,0.6);
  transition: color var(--transition);
}

.footer__link:hover { color: var(--color-white); }

.footer__contact-item {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  font-size: var(--font-size-sm);
  margin-bottom: var(--space-3);
  color: rgba(255,255,255,0.6);
}

.footer__contact-item svg { flex-shrink: 0; color: var(--color-primary-light); }
.footer__contact-item a { color: rgba(255,255,255,0.6); }
.footer__contact-item a:hover { color: var(--color-white); }

.footer__bottom {
  border-top: 1px solid rgba(255,255,255,0.1);
  padding-top: var(--space-6);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--space-3);
  text-align: center;
}

.footer__copy {
  font-size: var(--font-size-xs);
  color: rgba(255,255,255,0.4);
}

.footer__bottom-links { display: flex; gap: var(--space-4); }

.footer__bottom-link {
  font-size: var(--font-size-xs);
  color: rgba(255,255,255,0.4);
}

.footer__bottom-link:hover { color: var(--color-white); }

/* =============================================================
   WHATSAPP BUTTON
   ============================================================= */
.whatsapp-btn {
  position: fixed;
  bottom: var(--space-6);
  right: var(--space-6);
  z-index: 900;
  width: 56px;
  height: 56px;
  border-radius: var(--radius-full);
  background: #25D366;
  color: var(--color-white);
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 4px 16px rgba(37,211,102,0.4);
  transition: all var(--transition);
}

.whatsapp-btn:hover {
  transform: scale(1.1);
  box-shadow: 0 6px 24px rgba(37,211,102,0.5);
  color: var(--color-white);
}

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

/* =============================================================
   SCROLL TO TOP
   ============================================================= */
.scroll-top {
  position: fixed;
  bottom: var(--space-6);
  right: calc(var(--space-6) + 56px + var(--space-3));
  z-index: 900;
  width: 44px;
  height: 44px;
  border-radius: var(--radius-full);
  background: var(--color-primary);
  color: var(--color-white);
  border: none;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  visibility: hidden;
  transform: translateY(16px);
  transition: all var(--transition);
  box-shadow: var(--shadow-md);
}

.scroll-top.is-visible {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}

.scroll-top:hover {
  background: var(--color-primary-dark);
  transform: translateY(-2px);
}

/* =============================================================
   SCROLL ANIMATIONS
   ============================================================= */
[data-animate] {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}

[data-animate="fade-down"] { transform: translateY(-30px); }
[data-animate="fade-left"] { transform: translateX(30px); }
[data-animate="fade-right"] { transform: translateX(-30px); }

[data-animate].is-visible {
  opacity: 1;
  transform: translate(0, 0);
}

/* =============================================================
   RESPONSIVE — TABLET (768px+)
   ============================================================= */
@media (min-width: 768px) {
  .section { padding: var(--space-20) 0; }

  .section__title { font-size: var(--font-size-4xl); }

  .hero__title { font-size: var(--font-size-5xl); }

  .hero__scroll { display: flex; }

  .stats__grid { grid-template-columns: repeat(4, 1fr); }

  .about__grid { grid-template-columns: 1fr 1fr; align-items: center; }

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

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

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

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

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

  .footer__grid { grid-template-columns: 1.5fr 1fr 1fr 1fr; }

  .footer__bottom { flex-direction: row; justify-content: space-between; }

  .cta__title { font-size: var(--font-size-4xl); }
}

/* =============================================================
   RESPONSIVE — DESKTOP (1024px+)
   ============================================================= */
@media (min-width: 1024px) {
  .nav__links { display: flex; }
  .nav__cta { display: inline-flex; }
  .nav__toggle { display: none; }

  .section { padding: var(--space-24) 0; }

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

  .process__grid { grid-template-columns: repeat(4, 1fr); }

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

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

/* =============================================================
   RESPONSIVE — LARGE (1280px+)
   ============================================================= */
@media (min-width: 1280px) {
  .container { padding: 0 var(--space-8); }

  .gallery__grid { grid-template-columns: repeat(4, 1fr); }
}

/* =============================================================
   PRINT STYLES
   ============================================================= */
@media print {
  .nav, .whatsapp-btn, .scroll-top, .lightbox, .hero__scroll { display: none !important; }
  .hero { min-height: auto; }
  .hero__overlay { background: rgba(0,0,0,0.3); }
  body { color: #000; }
  .section--dark { background: #eee; color: #000; }
}

/* =============================================================
   REDUCED MOTION
   ============================================================= */
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    transition-duration: 0.01ms !important;
    scroll-behavior: auto !important;
  }
  [data-animate] {
    opacity: 1 !important;
    transform: none !important;
    transition: none !important;
  }
}