/* ==========================================================================
   AEROPARTS - LAYOUT STYLES
   ========================================================================== */

/* Main Container */
.container {
  width: 100%;
  max-width: var(--max-width);
  margin-left: auto;
  margin-right: auto;
  padding-left: clamp(1.25rem, 4vw, 3rem);
  padding-right: clamp(1.25rem, 4vw, 3rem);
}

/* ==========================================================================
   0. HEADER
   ========================================================================== */
.site-header {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: var(--header-height);
  z-index: 1000;
  background-color: var(--glass-bg);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  border-bottom: 1px solid var(--glass-border);
  transition: background-color var(--transition-normal), box-shadow var(--transition-normal), border-color var(--transition-normal);
}

.site-header.scrolled {
  background-color: var(--color-blue-deep);
  box-shadow: var(--shadow-header);
  border-bottom-color: rgba(255, 255, 255, 0.08);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 100%;
}

.brand-logo-link {
  display: inline-flex;
  align-items: center;
  padding: 0.5rem 0;
  /* Respect safe area equivalent to 'A' height */
  margin-right: 2rem;
  transition: opacity var(--transition-fast);
}

.brand-logo-link:hover {
  opacity: 0.9;
}

.brand-logo-img {
  width: 175px;
  height: auto;
  min-width: 140px;
}

/* Header Navigation */
.main-nav {
  display: flex;
  align-items: center;
}

.nav-list {
  display: flex;
  align-items: center;
  gap: clamp(1.5rem, 2.8vw, 3rem);
}

.nav-link {
  position: relative;
  font-family: var(--font-title);
  font-weight: 600;
  font-size: 0.84375rem; /* ~13.5px */
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--color-white);
  padding: 0.625rem 0;
  transition: color var(--transition-fast);
}

/* Underline hover effect drawing left to right */
.nav-link::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 100%;
  height: 2px;
  background-color: var(--color-sky-aeroparts);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform 0.3s cubic-bezier(0.25, 1, 0.5, 1);
}

.nav-link:hover {
  color: var(--color-sky-aeroparts);
}

.nav-link:hover::after,
.nav-link.active::after {
  transform: scaleX(1);
}

.nav-link.active {
  color: var(--color-sky-aeroparts);
}

/* Header Language Selector (ES | EN) */
.lang-switcher {
  display: inline-flex;
  align-items: center;
  gap: 0.375rem;
  font-family: var(--font-body);
  font-size: 0.8125rem; /* ~13px */
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  border-left: 1px solid rgba(255, 255, 255, 0.22);
  margin-left: clamp(1rem, 2vw, 1.75rem);
  padding-left: clamp(1rem, 2vw, 1.75rem);
}

.lang-btn {
  background: none;
  border: none;
  padding: 0.25rem 0.125rem;
  margin: 0;
  font: inherit;
  font-size: inherit;
  font-weight: 600;
  letter-spacing: inherit;
  text-transform: uppercase;
  cursor: pointer;
  color: rgba(255, 255, 255, 0.5);
  transition: color var(--transition-fast);
  line-height: 1;
}

.lang-btn:hover {
  color: var(--color-sky-aeroparts);
}

.lang-btn.is-active {
  color: var(--color-white);
  cursor: default;
}

.lang-divider {
  color: rgba(255, 255, 255, 0.28);
  user-select: none;
  font-size: 0.75rem;
  line-height: 1;
}

/* Mobile Language Selector inside Drawer */
.mobile-lang-switcher {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  font-family: var(--font-body);
  font-size: 1.125rem;
  font-weight: 600;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  margin-top: 1.5rem;
  padding-top: 1.5rem;
  border-top: 1px solid rgba(255, 255, 255, 0.15);
}

.mobile-lang-switcher .lang-btn {
  font-size: 1.125rem;
  padding: 0.5rem;
}

.mobile-lang-switcher .lang-divider {
  font-size: 1rem;
}

/* Mobile Hamburger Button */
.menu-toggle-btn {
  display: none;
  flex-direction: column;
  justify-content: center;
  gap: 6px;
  width: 44px;
  height: 44px;
  padding: 8px;
  z-index: 1100;
}

.menu-toggle-btn span {
  display: block;
  width: 100%;
  height: 2px;
  background-color: var(--color-white);
  border-radius: 1px;
  transition: transform var(--transition-normal), opacity var(--transition-fast);
}

.menu-toggle-btn.is-active span:nth-child(1) {
  transform: translateY(8px) rotate(45deg);
}

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

.menu-toggle-btn.is-active span:nth-child(3) {
  transform: translateY(-8px) rotate(-45deg);
}

/* ==========================================================================
   1. HERO SECTION (100vh)
   ========================================================================== */
.hero-section {
  position: relative;
  width: 100%;
  height: 100vh;
  min-height: 650px;
  display: flex;
  align-items: center;
  overflow: hidden;
  background-color: var(--color-blue-deep);
}

.hero-bg-container {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  z-index: 1;
}

.hero-bg-img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center 40%;
  filter: contrast(1.08) brightness(0.85);
}

/* Aeroparts Diagonal Gradient Overlay:
   From Azul Profundo #061928 (85% top-left) to Azul Aeroparts #022D5A (55% bottom-right) */
.hero-overlay {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  z-index: 2;
  background: linear-gradient(
    135deg,
    rgba(6, 25, 40, 0.88) 0%,
    rgba(6, 25, 40, 0.72) 40%,
    rgba(2, 45, 90, 0.55) 100%
  );
  pointer-events: none;
}

.hero-content {
  position: relative;
  z-index: 3;
  padding-top: calc(var(--header-height) + 2rem);
  max-width: 950px;
}

/* Hero entrance subtle diagonal animation */
.hero-animate-in {
  opacity: 0;
  transform: translate3d(-24px, 20px, 0);
  animation: heroFadeSlideIn 0.8s cubic-bezier(0.2, 0.8, 0.2, 1) forwards;
}

.hero-animate-delay {
  animation-delay: 0.15s;
}

@keyframes heroFadeSlideIn {
  to {
    opacity: 1;
    transform: translate3d(0, 0, 0);
  }
}

/* Scroll Indicator */
.hero-scroll-indicator {
  position: absolute;
  bottom: 2rem;
  left: 50%;
  transform: translateX(-50%);
  z-index: 3;
  display: flex;
  flex-direction: column;
  align-items: center;
  color: var(--color-white);
  opacity: 0.75;
  transition: opacity var(--transition-fast);
}

.hero-scroll-indicator:hover {
  opacity: 1;
}

.scroll-line {
  width: 1px;
  height: 38px;
  background: linear-gradient(to bottom, rgba(255, 255, 255, 0), var(--color-sky-aeroparts));
  animation: scrollPulse 2s cubic-bezier(0.65, 0, 0.35, 1) infinite;
}

@keyframes scrollPulse {
  0% { transform: scaleY(0); transform-origin: top; opacity: 0; }
  50% { transform: scaleY(1); transform-origin: top; opacity: 1; }
  50.1% { transform: scaleY(1); transform-origin: bottom; opacity: 1; }
  100% { transform: scaleY(0); transform-origin: bottom; opacity: 0; }
}

/* ==========================================================================
   2. QUIÉNES SOMOS SECTION
   ========================================================================== */
.about-section {
  position: relative;
  background-color: var(--color-white);
  padding-top: clamp(5rem, 8vw, 7.5rem); /* ~80px - 120px */
  padding-bottom: clamp(5rem, 8vw, 7.5rem);
}

.about-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(0, 1.85fr);
  gap: clamp(2rem, 4.5vw, 5rem);
  align-items: start;
  width: 100%;
}

.about-col-left {
  padding-right: 1rem;
}

.about-col-right {
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
}

/* Subtle section divider */
.section-divider-line {
  width: 100%;
  height: 1px;
  background-color: var(--color-gray-metallic);
}

/* ==========================================================================
   4. CONTACTO SECTION
   ========================================================================== */
.contact-section {
  position: relative;
  background-color: var(--color-gray-metallic);
  padding-top: clamp(5rem, 8vw, 7.5rem);
  padding-bottom: clamp(5rem, 8vw, 7.5rem);
}

.contact-header-block {
  margin-bottom: clamp(2rem, 3.5vw, 3rem);
}

.contact-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.35fr) minmax(0, 1fr);
  gap: clamp(2rem, 4.5vw, 5rem);
  align-items: start;
  width: 100%;
}

.contact-info-block {
  display: flex;
  flex-direction: column;
}

/* Ensure right column starts at the exact same horizontal height as the first form field */
.contact-info-block .contact-subtitle:first-of-type {
  margin-top: 0;
}

.contact-subtitle {
  font-family: var(--font-title);
  font-size: 1.125rem;
  font-weight: 700;
  text-transform: uppercase;
  color: var(--color-blue-aeroparts);
  margin-top: 1.5rem;
  margin-bottom: 0.5rem;
}

.contact-address {
  font-family: var(--font-body);
  font-size: 1.0625rem;
  line-height: 1.6;
  color: var(--color-blue-deep);
  margin-bottom: 1.25rem;
}

.contact-direct-links {
  display: flex;
  flex-direction: column;
  gap: 0.625rem;
  font-family: var(--font-body);
  font-size: 1.0625rem;
}

.contact-link-highlight {
  color: var(--color-blue-francia);
  text-decoration: underline;
  text-underline-offset: 4px;
  font-weight: 500;
  transition: color var(--transition-fast);
}

.contact-link-highlight:hover {
  color: var(--color-blue-aeroparts);
}

/* ==========================================================================
   5. FOOTER
   ========================================================================== */
.site-footer {
  position: relative;
  background-color: var(--color-blue-deep);
  color: rgba(255, 255, 255, 0.7);
  padding-top: 4.5rem;
  padding-bottom: 2.5rem;
}

.footer-top {
  display: grid;
  grid-template-columns: 32% 38% 30%;
  gap: 2.5rem;
  align-items: start;
  margin-bottom: 3.5rem;
}

.footer-brand {
  display: flex;
  flex-direction: column;
  gap: 1.25rem;
}

.footer-logo-img {
  width: 165px;
  height: auto;
}

.footer-claim {
  font-family: var(--font-body);
  font-size: 0.9375rem;
  color: #B4C2CD;
}

.footer-nav-list {
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}

.footer-nav-link {
  font-family: var(--font-body);
  font-size: 0.875rem; /* 14px */
  color: rgba(255, 255, 255, 0.7);
  transition: color var(--transition-fast);
}

.footer-nav-link:hover {
  color: var(--color-sky-aeroparts);
}

.footer-contact {
  display: flex;
  flex-direction: column;
  gap: 0.625rem;
}

.footer-contact p {
  font-family: var(--font-body);
  font-size: 0.875rem;
  font-weight: 400;
  line-height: 1.5;
  color: var(--color-white);
  margin: 0;
}

.footer-contact a {
  font-family: var(--font-body);
  font-size: 0.875rem;
  font-weight: 400;
  line-height: 1.5;
  color: var(--color-white);
  transition: color var(--transition-fast);
}

.footer-contact a:hover {
  color: var(--color-sky-aeroparts);
}

.footer-social-link {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 38px;
  height: 38px;
  margin-top: 0.5rem;
  border: 1px solid rgba(255, 255, 255, 0.2);
  border-radius: 4px;
  color: var(--color-white);
  transition: background-color var(--transition-fast), border-color var(--transition-fast), color var(--transition-fast);
}

.footer-social-link:hover {
  border-color: var(--color-sky-aeroparts);
  background-color: rgba(93, 165, 213, 0.15);
  color: var(--color-sky-aeroparts);
}

.footer-bottom {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-top: 2rem;
  border-top: 1px solid rgba(255, 255, 255, 0.10);
}

.footer-bottom p {
  font-family: var(--font-body);
  font-size: 0.9375rem;
  font-weight: 400;
  line-height: 1.5;
  color: #B4C2CD;
  margin: 0;
}