/* ==========================================================================
   CSS LAYOUT - Manuel Zacarias
   ========================================================================== */

/* Grid and container system */
.container {
  width: 100%;
  max-width: var(--container-max-width);
  margin-left: auto;
  margin-right: auto;
  padding-left: 1.5rem;
  padding-right: 1.5rem;
}

section {
  padding-top: 5rem;
  padding-bottom: 5rem;
  position: relative;
  overflow: hidden;
}

/* Header & Navigation */
header {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 80px;
  z-index: 1000;
  display: flex;
  align-items: center;
  transition: all var(--transition-normal);
  border-bottom: 1px solid transparent;
  background-color: transparent;
}

/* Scrolled state (handled via JS) */
header.scrolled {
  height: 64px;
  background-color: rgba(10, 15, 28, 0.8);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--card-border);
}

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

.logo {
  font-size: 1.5rem;
  font-weight: 800;
  letter-spacing: -0.05em;
  background: linear-gradient(135deg var(--in-oklch), var(--indigo-400), var(--cyan-400));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

/* Navigation items styling */
.nav-menu ul {
  display: flex;
  align-items: center;
  gap: 2rem;
}

.nav-menu a {
  font-size: 0.95rem;
  font-weight: 500;
  color: var(--text-secondary);
  display: flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.5rem 0;
  position: relative;
  transition: color var(--transition-fast);
}

.nav-menu a i {
  font-size: 1rem;
  transition: transform var(--transition-fast);
}

.nav-menu a:hover {
  color: var(--text-primary);
}

.nav-menu a:hover i {
  transform: translateY(-2px);
}

/* Menu indicator underline */
.nav-menu a::after {
  content: "";
  position: absolute;
  bottom: 0;
  left: 0;
  width: 0;
  height: 2px;
  background: linear-gradient(90deg, var(--color-primary), var(--color-accent));
  transition: width var(--transition-fast);
  border-radius: var(--border-radius-full);
}

.nav-menu a:hover::after,
.nav-menu a.active::after {
  width: 100%;
}

/* Mobile Menu Trigger button */
.mobile-menu-btn {
  display: none;
  flex-direction: column;
  justify-content: space-between;
  width: 24px;
  height: 18px;
  cursor: pointer;
  z-index: 1100;
}

.mobile-menu-btn span {
  display: block;
  width: 100%;
  height: 2px;
  background-color: var(--text-primary);
  border-radius: var(--border-radius-full);
  transition: all var(--transition-fast);
}

/* Toggle transformations */
.mobile-menu-btn.open span:nth-child(1) {
  transform: translateY(8px) rotate(45deg);
}

.mobile-menu-btn.open span:nth-child(2) {
  opacity: 0;
}

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

.menu-header {
  display: none;
}

/* Footer layout */
footer {
  background-color: var(--bg-secondary);
  border-top: 1px solid var(--card-border);
  padding: 5rem 0 2rem;
}

.footer-content {
  display: grid;
  grid-template-columns: 1.5fr 1fr 1fr;
  gap: 4rem;
  margin-bottom: 4rem;
}

.footer-info h3 {
  font-size: 1.5rem;
  margin-bottom: 1rem;
}

.footer-info p {
  color: var(--text-secondary);
  max-width: 300px;
}

.footer-links h4,
.footer-social h4 {
  font-size: 1.1rem;
  margin-bottom: 1.5rem;
  font-weight: 600;
}

.footer-links ul {
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}

.footer-links a {
  color: var(--text-secondary);
}

.footer-links a:hover {
  color: var(--color-primary);
}

.footer-bottom {
  padding-top: 2rem;
  border-top: 1px solid rgba(255, 255, 255, 0.05);
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 1.5rem;
  color: var(--text-muted);
  font-size: 0.9rem;
}

.footer-bottom-left {
  display: flex;
  justify-content: space-between;
  width: 100%;
  flex-wrap: wrap;
  gap: 1rem;
}

.footer-bottom-left p i {
  color: #ef4444;
}

/* Background overlay orbs */
.orb-glow {
  position: absolute;
  border-radius: var(--border-radius-full);
  filter: blur(100px);
  opacity: 0.15;
  pointer-events: none;
  z-index: 1;
}

.orb-glow-1 {
  width: 400px;
  height: 400px;
  background-color: var(--color-primary);
  top: -100px;
  right: -100px;
}

.orb-glow-2 {
  width: 500px;
  height: 500px;
  background-color: var(--color-accent);
  bottom: -200px;
  left: -200px;
}