/* ==========================================================================
   1. Variables y Configuración Global
   ========================================================================== */
:root {
  --color-primary: #FFD245;
  --color-dark: #121212;
  --color-light: #FFFFFF;
  --color-gray-medium: #9ca3af;
  --color-gray-dark: #374151;
  --color-gray-darker: #1f2937;
  --font-primary: 'Inter', sans-serif;
  --font-logo: 'Tinos', serif;
  --container-width: 1200px;
  --container-padding: 1.5rem;
  --border-radius: 0.75rem;
  --transition-speed: 300ms;
  --header-height: 80px;
}

/* ==========================================================================
   2. Reseteo y Estilos Base
   ========================================================================== */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { font-size: 16px; }
body {
  font-family: var(--font-primary);
  background-color: var(--color-dark);
  color: var(--color-light);
  line-height: 1.6;
  overflow-x: hidden;
}
body.modal-open { overflow: hidden; }

/* ==========================================================================
   3. Clases de Utilidad
   ========================================================================== */
.container { max-width: var(--container-width); margin-left: auto; margin-right: auto; padding-left: var(--container-padding); padding-right: var(--container-padding); }
.grid { display: grid; }
.gap-8 { gap: 2rem; }
.text-brand-yellow { color: var(--color-primary); }
.w-full { width: 100%; }
.text-center { text-align: center; }
.text-left { text-align: left; }
.mt-12 { margin-top: 3rem; }
.space-y-4 > * + * { margin-top: 1rem; }
.mb-4 { margin-bottom: 1rem; }
.ml-2 { margin-left: 0.5rem; }

/* ==========================================================================
   4. Componentes Reutilizables
   ========================================================================== */
.btn { display: inline-flex; align-items: center; justify-content: center; font-weight: 700; padding: 0.75rem 1.5rem; border-radius: var(--border-radius); border: 2px solid transparent; transition: all var(--transition-speed) ease; text-decoration: none; cursor: pointer; }
.btn--primary { background-color: var(--color-primary); color: var(--color-dark); }
.btn--primary:hover { background-color: #ffde78; transform: scale(1.05); }
.btn--secondary { background-color: transparent; color: var(--color-primary); border-color: var(--color-primary); }
.btn--secondary:hover { background-color: var(--color-primary); color: var(--color-dark); }
.btn--lg { padding: 1rem 2rem; font-size: 1.125rem; }

.section { padding: 5rem 0; }
.section__header { text-align: center; margin-bottom: 3rem; }
.section__title { font-size: 2.25rem; font-weight: 800; color: var(--color-primary); margin-bottom: 0.5rem; }
.section__subtitle { font-size: 1.125rem; color: var(--color-gray-medium); max-width: 600px; margin: 0 auto; }

.card { background-color: var(--color-gray-darker); padding: 2rem; border-radius: var(--border-radius); border: 1px solid var(--color-gray-dark); text-align: center; transition: all var(--transition-speed) ease; }
.card:hover { transform: translateY(-8px); border-color: var(--color-primary); }
.card__icon-wrapper { display: inline-flex; padding: 1rem; background-color: rgba(255, 210, 69, 0.1); border-radius: 50%; margin-bottom: 1rem; }
.card__icon { width: 2.5rem; height: 2.5rem; color: var(--color-primary); }
.card__title { font-size: 1.25rem; font-weight: 700; margin-bottom: 0.5rem; }
.card__text { color: var(--color-gray-medium); }

.form__input { width: 100%; background-color: var(--color-gray-dark); border: 1px solid var(--color-gray-dark); border-radius: var(--border-radius); padding: 0.875rem 1rem; color: var(--color-light); transition: all var(--transition-speed) ease; }
.form__input:focus { outline: none; border-color: var(--color-primary); box-shadow: 0 0 0 2px rgba(255, 210, 69, 0.5); }
.form__status { margin-top: 1rem; text-align: center; min-height: 1.5rem; }

/* ==========================================================================
   5. Estilos de Layout y Secciones Específicas
   ========================================================================== */
.header { background-color: rgba(18, 18, 18, 0.8); backdrop-filter: blur(10px); position: sticky; top: 0; z-index: 50; border-bottom: 1px solid rgba(55, 65, 81, 0.5); height: var(--header-height); }
.header__container { display: flex; justify-content: space-between; align-items: center; height: 100%; }

.logo { display: flex; align-items: center; gap: 0.75rem; text-decoration: none; }
.logo__icon { width: 2.5rem; height: 2.5rem; color: var(--color-primary); }
.logo__text { display: flex; flex-direction: column; }
.logo__brand { font-family: var(--font-logo); color: var(--color-light); font-size: 1.75rem; font-weight: 700; letter-spacing: 0.05em; line-height: 1; }
.logo__tagline { color: var(--color-gray-medium); font-size: 0.65rem; font-weight: 400; letter-spacing: 0.15em; margin-top: -2px; }

.nav { display: none; }
.header__actions { display: none; }
.mobile-menu-button { display: block; background: none; border: none; color: white; cursor: pointer; }

.mobile-nav { position: absolute; top: var(--header-height); left: 0; right: 0; background-color: var(--color-dark); border-bottom: 1px solid var(--color-gray-dark); padding: 1rem var(--container-padding); display: flex; flex-direction: column; gap: 1rem; transform: translateY(-150%); transition: transform var(--transition-speed) ease-in-out; z-index: 40; }
.mobile-nav.is-open { transform: translateY(0); }
.mobile-nav__link { color: var(--color-gray-light); text-decoration: none; padding: 0.5rem 0; font-size: 1.1rem; }
.mobile-nav__link:hover { color: var(--color-primary); }

@media (min-width: 992px) {
  .nav { display: flex; align-items: center; gap: 2rem; }
  .header__actions { display: flex; align-items: center; gap: 1.5rem; }
  .mobile-menu-button { display: none; }
  .mobile-nav { display: none; }
}

.nav__link { color: var(--color-gray-light); text-decoration: none; transition: color var(--transition-speed) ease; }
.nav__link:hover { color: var(--color-primary); }

.hero { position: relative; height: calc(100vh - var(--header-height)); min-height: 500px; display: flex; align-items: center; justify-content: center; text-align: center; }
.hero__overlay { position: absolute; inset: 0; background: linear-gradient(to top, var(--color-dark) 0%, rgba(18, 18, 18, 0.6) 50%, transparent 100%); z-index: 1; }
.hero__bg-image { position: absolute; inset: 0; width: 100%; height: 100%; object-fit: cover; }
.hero__content { position: relative; z-index: 2; }
.hero__title { font-size: clamp(2.5rem, 6vw, 4.5rem); font-weight: 800; line-height: 1.1; margin-bottom: 1rem; }
.hero__subtitle { font-size: clamp(1.1rem, 2.5vw, 1.25rem); color: var(--color-gray-light); max-width: 700px; margin: 0 auto 2rem; }

.bg-pattern { background-color: var(--color-gray-darker); }
.projects-gallery { display: grid; grid-template-columns: repeat(auto-fit, minmax(300px, 1fr)); gap: 1.5rem; }
.project-card { position: relative; overflow: hidden; border-radius: var(--border-radius); aspect-ratio: 4 / 3; cursor: pointer; transition: transform var(--transition-speed) ease; }
.project-card:hover { transform: scale(1.03); }
.project-card__image { width: 100%; height: 100%; object-fit: cover; transition: transform calc(var(--transition-speed) * 2) ease; }
.project-card:hover .project-card__image { transform: scale(1.1); }
.project-card__overlay { position: absolute; inset: 0; background: linear-gradient(to top, rgba(0,0,0,0.8), transparent); display: flex; flex-direction: column; justify-content: flex-end; padding: 1.5rem; opacity: 0; transition: opacity var(--transition-speed) ease; }
.project-card:hover .project-card__overlay { opacity: 1; }
.project-card__title, .project-card__category { transform: translateY(20px); transition: transform var(--transition-speed) ease; }
.project-card__category { color: var(--color-primary); font-size: 0.875rem; transition-delay: 50ms; }
.project-card:hover .project-card__title, .project-card:hover .project-card__category { transform: translateY(0); }

.services-grid, .reviews-grid { display: grid; gap: 2rem; grid-template-columns: repeat(auto-fit, minmax(280px, 1fr)); }

.review-card { background-color: var(--color-gray-darker); padding: 2rem; border-radius: var(--border-radius); border: 1px solid var(--color-gray-dark); display: flex; flex-direction: column; }
.review-card__header { display: flex; align-items: center; gap: 1rem; margin-bottom: 1rem; }
.review-card__avatar { width: 50px; height: 50px; border-radius: 50%; object-fit: cover; }
.review-card__author-info { flex-grow: 1; }
.review-card__author-name { font-weight: 700; }
.review-card__rating { display: flex; gap: 0.25rem; color: #f59e0b; }
.review-card__text { color: var(--color-gray-medium); flex-grow: 1; margin-bottom: 1rem; }
.review-card__source { margin-top: auto; font-size: 0.875rem; color: var(--color-gray-medium); }
.review-card__source a { color: var(--color-primary); text-decoration: none; }

.contact-wrapper { background-color: var(--color-gray-darker); border-radius: var(--border-radius); padding: 2rem; border: 1px solid var(--color-gray-dark); display: grid; gap: 3rem; }
.contact-form-grid { display: grid; gap: 1rem; }
@media (min-width: 768px) {
  .contact-wrapper { grid-template-columns: 1fr 1fr; padding: 4rem; }
  .contact-form-grid { grid-template-columns: 1fr 1fr; }
}
.contact-info__link { display: flex; align-items: center; gap: 0.75rem; color: var(--color-light); text-decoration: none; transition: color var(--transition-speed) ease; }
.contact-info__link i { color: var(--color-primary); }
.contact-info__link:hover { color: var(--color-primary); }

.footer { background-color: var(--color-gray-darker); border-top: 1px solid var(--color-gray-dark); padding: 2rem 0; color: var(--color-gray-medium); }

.modal { position: fixed; inset: 0; background-color: rgba(0, 0, 0, 0.8); z-index: 100; display: flex; align-items: center; justify-content: center; padding: 1rem; opacity: 0; visibility: hidden; transition: opacity var(--transition-speed) ease, visibility var(--transition-speed) ease; }
.modal.is-visible { opacity: 1; visibility: visible; }
.modal__content { background-color: var(--color-gray-darker); border-radius: var(--border-radius); padding: 2rem; width: 100%; max-width: 900px; max-height: 90vh; overflow-y: auto; position: relative; transform: scale(0.95); transition: transform var(--transition-speed) ease; }
.modal.is-visible .modal__content { transform: scale(1); }
.modal__close-btn { position: absolute; top: 1rem; right: 1rem; background: none; border: none; color: var(--color-gray-medium); cursor: pointer; padding: 0.5rem; }
.modal__close-btn:hover { color: var(--color-light); }
.modal__body { display: grid; grid-template-columns: 1fr; gap: 2rem; }
@media (min-width: 768px) { .modal__body { grid-template-columns: 2fr 1fr; } }
.modal-carousel { position: relative; overflow: hidden; border-radius: var(--border-radius); }
.modal-carousel__track { display: flex; transition: transform var(--transition-speed) ease-in-out; }
.modal-carousel__slide { flex: 0 0 100%; width: 100%; aspect-ratio: 16 / 9; }
.modal-carousel__slide img, .modal-carousel__slide video { width: 100%; height: 100%; object-fit: cover; border: none; }
.modal-carousel__btn { position: absolute; top: 50%; transform: translateY(-50%); background-color: rgba(0,0,0,0.5); border: none; color: white; padding: 0.5rem; border-radius: 50%; cursor: pointer; z-index: 10; }
.modal-carousel__btn--prev { left: 1rem; }
.modal-carousel__btn--next { right: 1rem; }
.modal-details__title { font-size: 1.75rem; font-weight: 700; color: var(--color-primary); margin-bottom: 0.5rem; }
.modal-details__category { font-weight: 700; color: var(--color-gray-medium); margin-bottom: 1rem; }
.modal-details__description { color: var(--color-gray-medium); line-height: 1.7; }

.whatsapp-fab {
  position: fixed;
  bottom: 2rem;
  right: 2rem;
  background-color: #25D366;
  color: white;
  width: 60px;
  height: 60px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 4px 12px rgba(0,0,0,0.2);
  z-index: 40;
  transition: transform var(--transition-speed) ease;
}
.whatsapp-fab:hover {
  transform: scale(1.1);
  background-color: #128C7E;
}