/* Gravitas AI - Layout Styles v1.0
   Estructura y componentes de layout */

/* Container */
.l-container {
  width: 100%;
  max-width: 1280px;
  margin: 0 auto;
  padding: 0 var(--g-space-4);
}

@media (min-width: 640px) {
  .l-container {
    padding: 0 var(--g-space-6);
  }
}

@media (min-width: 1024px) {
  .l-container {
    padding: 0 var(--g-space-8);
  }
}

/* Grid responsivo */
.l-grid {
  display: grid;
  gap: var(--g-space-6);
}

.l-grid--2 {
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
}

.l-grid--3 {
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
}

.l-grid--4 {
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
}

/* Navbar */
.l-navbar {
  position: sticky;
  top: 0;
  z-index: var(--g-z-sticky);
  background: var(--g-glass);
  backdrop-filter: var(--g-glass-blur);
  -webkit-backdrop-filter: var(--g-glass-blur);
  border-bottom: 1px solid var(--g-glass-border);
  transition: box-shadow var(--g-transition-base);
}

.l-navbar--scrolled {
  box-shadow: var(--g-shadow-md);
}

.l-navbar__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 80px;
}

.l-navbar__logo {
  display: inline-block;
  position: relative;
  line-height: 0;
}

.l-navbar__logo img,
.l-navbar__logo picture {
  pointer-events: none;
  user-select: none;
}

.l-navbar__logo-full,
.l-navbar__logo-mark {
  height: 48px;
  width: auto;
  transition: opacity var(--g-transition-base);
}

/* Default state: show full logo */
.l-navbar__logo-full {
  display: block;
}

.l-navbar__logo-mark {
  display: none;
}

/* Sticky state: show logo mark */
.l-navbar--scrolled .l-navbar__logo-full {
  display: none;
}

.l-navbar--scrolled .l-navbar__logo-mark {
  display: block;
}

/* Mobile state: always show logo mark */
@media (max-width: 767px) {
  .l-navbar__logo-full {
    display: none;
  }
  
  .l-navbar__logo-mark {
    display: block;
    height: 32px;
  }
  
  .l-navbar--scrolled .l-navbar__logo-mark {
    height: 32px;
  }
}

.l-navbar__menu {
  display: none;
  gap: var(--g-space-8);
  align-items: center;
}

@media (min-width: 768px) {
  .l-navbar__menu {
    display: flex;
  }
}

.l-navbar__link {
  position: relative;
  padding: var(--g-space-2) 0;
  transition: color var(--g-transition-fast);
}

.l-navbar__link::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 0;
  height: 2px;
  background: var(--g-gradient);
  transition: width var(--g-transition-base);
}

.l-navbar__link:hover::after,
.l-navbar__link--active::after {
  width: 100%;
}

.l-navbar__mobile-toggle {
  display: block;
  width: 32px;
  height: 32px;
  position: relative;
  background: none;
  border: none;
  cursor: pointer;
  z-index: var(--g-z-dropdown);
}

.l-navbar__mobile-toggle span {
  display: block;
  width: 100%;
  height: 2px;
  background: var(--g-color-text);
  border-radius: 1px;
  position: absolute;
  left: 0;
  transition: all 0.3s ease;
}

.l-navbar__mobile-toggle span:first-child {
  top: 8px;
}

.l-navbar__mobile-toggle span:nth-child(2) {
  top: 50%;
  transform: translateY(-50%);
}

.l-navbar__mobile-toggle span:last-child {
  bottom: 8px;
}

/* Hamburger animation when menu is open */
.l-navbar__mobile-toggle[aria-expanded="true"] span:first-child {
  transform: rotate(45deg) translateY(8px);
}

.l-navbar__mobile-toggle[aria-expanded="true"] span:nth-child(2) {
  opacity: 0;
}

.l-navbar__mobile-toggle[aria-expanded="true"] span:last-child {
  transform: rotate(-45deg) translateY(-8px);
}

@media (min-width: 768px) {
  .l-navbar__mobile-toggle {
    display: none;
  }
}

/* Footer */
.l-footer {
  margin-top: var(--g-space-16);
  padding: var(--g-space-12) 0 var(--g-space-8);
  background: var(--g-gray-100);
  border-top: 1px solid var(--g-glass-border);
}

.l-footer__grid {
  display: grid;
  gap: var(--g-space-8);
  margin-bottom: var(--g-space-8);
}

@media (min-width: 768px) {
  .l-footer__grid {
    grid-template-columns: 2fr 1fr 1fr 1fr;
  }
}

.l-footer__bottom {
  padding-top: var(--g-space-6);
  border-top: 1px solid var(--g-glass-border);
  display: flex;
  flex-wrap: wrap;
  gap: var(--g-space-4);
  justify-content: space-between;
  align-items: center;
}

/* Secciones */
.s-section {
  padding: var(--g-space-12) 0;
}

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

/* Hero */
.s-hero {
  position: relative;
  min-height: calc(100vh - 72px);
  display: flex;
  align-items: center;
  overflow: hidden;
  padding: var(--g-space-8) 0;
}

/* Anchor offset for sticky header */
:target {
  scroll-margin-top: 96px;
}

.s-hero__bg {
  position: absolute;
  inset: 0;
  z-index: -1;
  background: radial-gradient(
    ellipse at center top,
    rgba(28, 163, 255, 0.15) 0%,
    transparent 60%
  );
}

.s-hero__orb {
  position: absolute;
  top: 50%;
  right: -10%;
  transform: translateY(-50%);
  width: 600px;
  height: 600px;
  background: radial-gradient(
    circle,
    rgba(123, 63, 228, 0.3) 0%,
    transparent 70%
  );
  filter: blur(100px);
  animation: float 20s ease-in-out infinite;
}

@keyframes float {
  0%, 100% { transform: translateY(-50%) scale(1); }
  50% { transform: translateY(-45%) scale(1.1); }
}

/* Sección Benefits */
.s-benefits {
  padding: var(--g-space-16) 0;
}

/* Sección KPIs */
.s-kpis {
  padding: var(--g-space-12) 0;
  background: var(--g-gray-100);
  border-top: 1px solid var(--g-glass-border);
  border-bottom: 1px solid var(--g-glass-border);
}

.s-kpis__grid {
  display: grid;
  gap: var(--g-space-8);
  text-align: center;
}

@media (min-width: 768px) {
  .s-kpis__grid {
    grid-template-columns: repeat(3, 1fr);
  }
}

/* Sección Integrations */
.s-integrations {
  padding: var(--g-space-16) 0;
  text-align: center;
}

/* Sección FAQ */
.s-faq {
  padding: var(--g-space-16) 0;
}

/* Sección CTA */
.s-cta {
  padding: var(--g-space-12) 0;
  background: var(--g-gray-100);
  text-align: center;
  border-radius: var(--g-radius-xl);
  margin: var(--g-space-16) 0;
}

/* Mobile menu - iOS Safari compatible architecture */
.l-mobile-menu {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100vh;
  height: 100svh; /* Modern viewport units for iOS 15.4+ */
  z-index: var(--g-z-modal);

  /* Start hidden but keep in DOM for iOS stability */
  opacity: 0;
  visibility: hidden;
  transition: opacity 0.3s ease, visibility 0.3s ease;

  /* Force hardware acceleration for smooth performance */
  -webkit-transform: translate3d(0, 0, 0);
  transform: translate3d(0, 0, 0);
  -webkit-backface-visibility: hidden;
  backface-visibility: hidden;
}

/* Real DOM background - never fails to render */
.l-mobile-menu__background {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background-color: rgba(0, 0, 0, 0.8);

  /* iOS-compatible alternatives */
  background: linear-gradient(
    to bottom,
    rgba(0, 0, 0, 0.8) 0%,
    rgba(0, 0, 0, 0.8) 100%
  );

  /* WebKit fallbacks */
  background: -webkit-linear-gradient(
    top,
    rgba(0, 0, 0, 0.8) 0%,
    rgba(0, 0, 0, 0.8) 100%
  );

  /* Hardware acceleration */
  -webkit-transform: translateZ(0);
  transform: translateZ(0);
}

/* Content panel above background */
.l-mobile-menu__panel {
  position: relative;
  z-index: 2;
  height: 100%;
  padding: var(--g-space-6);
  overflow-y: auto;
  -webkit-overflow-scrolling: touch;

  /* Initial hidden state */
  opacity: 0;
  transform: translateY(-20px);
  transition: opacity 0.3s ease, transform 0.3s ease;

  /* Safe area handling for newer iPhones */
  padding-top: calc(var(--g-space-6) + env(safe-area-inset-top));
  padding-bottom: calc(var(--g-space-6) + env(safe-area-inset-bottom));
  padding-left: calc(var(--g-space-6) + env(safe-area-inset-left));
  padding-right: calc(var(--g-space-6) + env(safe-area-inset-right));
}

/* Open state */
.l-mobile-menu--open {
  opacity: 1;
  visibility: visible;
}

.l-mobile-menu--open .l-mobile-menu__panel {
  opacity: 1;
  transform: translateY(0);
}

/* iOS Safari specific optimizations */
@supports (-webkit-touch-callout: none) {
  .l-mobile-menu {
    -webkit-tap-highlight-color: transparent;
    -webkit-touch-callout: none;
    -webkit-user-select: none;
  }

  .l-mobile-menu__background {
    background-color: #000000;
    opacity: 0.8;
  }

  /* iOS 12 and below alpha fix */
  @supports not (line-break: anywhere) {
    .l-mobile-menu__background {
      opacity: 0.4;
    }
  }
}

/* iOS viewport fixes */
@supports (-webkit-fill-available: 100vh) {
  .l-mobile-menu {
    height: -webkit-fill-available;
  }
}

.l-mobile-menu__list {
  display: flex;
  flex-direction: column;
  gap: var(--g-space-2);
  max-width: 100%;
}

.l-mobile-menu__link {
  display: flex;
  align-items: center;
  justify-content: center;
  padding: var(--g-space-4) var(--g-space-2);
  font-size: var(--g-text-lg);
  font-weight: 500;
  border-radius: var(--g-radius-md);
  transition: all var(--g-transition-base);
  text-align: center;
  color: rgba(255, 255, 255, 0.9);
  border: 1px solid transparent;

  /* iOS minimum touch target */
  min-height: 44px;
}

.l-mobile-menu__link:hover {
  background: rgba(255, 255, 255, 0.1);
  color: rgba(255, 255, 255, 1);
  border-color: rgba(255, 255, 255, 0.2);
  transform: translateY(-2px);
}

/* Special styling for CTA button in mobile menu */
.l-mobile-menu__link.btn--gradient {
  background: var(--g-gradient);
  color: white;
  margin-top: var(--g-space-4);
  box-shadow: 0 4px 20px rgba(28, 163, 255, 0.3);
}

.l-mobile-menu__link.btn--gradient:hover {
  background: var(--g-gradient-hover);
  transform: translateY(-2px);
  box-shadow: 0 8px 25px rgba(28, 163, 255, 0.4);
}

/* Ensure mobile menu is hidden on desktop */
@media (min-width: 768px) {
  .l-mobile-menu {
    display: none !important;
  }
}