/* ==========================================
   LAYOUT - Flexbox & Grid
   ========================================== */

/* Header & Navigation */
header {
  background-color: var(--color-primary);
  border-bottom: 1px solid rgba(255, 255, 255, 0.1);
  position: sticky;
  top: 0;
  z-index: 50;
  overflow: visible;
}

header .container {
  display: flex;
  justify-content: space-between;
  align-items: center;
  height: 110px;
  padding: 0 var(--spacing-lg);
}

.logo {
  font-size: 1.75rem;
  font-weight: var(--font-weight-bold);
  color: var(--color-white);
  letter-spacing: -0.5px;
  display: flex;
  align-items: center;
  text-decoration: none;
  cursor: pointer;
  transition: var(--transition-smooth);
}

nav {
  display: flex;
  gap: var(--spacing-2xl);
  align-items: center;
}

nav a {
  font-size: var(--font-size-small);
  font-weight: var(--font-weight-semibold);
  color: rgba(248, 250, 252, 0.85);
  transition: var(--transition-smooth);
  position: relative;
}

nav a:hover {
  color: var(--color-accent);
}

nav a::after {
  content: '';
  position: absolute;
  bottom: -2px;
  left: 0;
  width: 0;
  height: 2px;
  background-color: var(--color-accent);
  transition: width 0.3s ease-in-out;
}

nav a:hover::after {
  width: 100%;
}

/* Hamburger Menu */
.hamburger {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: var(--spacing-md);
}

.hamburger span {
  width: 24px;
  height: 2px;
  background-color: var(--color-white);
  transition: var(--transition-smooth);
  transform-origin: center;
}

.hamburger.open span:nth-child(1) {
  transform: rotate(45deg) translate(8px, 8px);
}

.hamburger.open span:nth-child(2) {
  opacity: 0;
}

.hamburger.open span:nth-child(3) {
  transform: rotate(-45deg) translate(8px, -8px);
}

/* Mobile Navigation */
.nav--mobile {
  display: none;
  position: absolute;
  top: 100%;
  left: 0;
  right: 0;
  background-color: var(--color-primary);
  border-bottom: 1px solid rgba(255, 255, 255, 0.1);
  flex-direction: column;
  gap: var(--spacing-md);
  padding: var(--spacing-2xl) var(--container-padding);
  animation: slideDown 0.3s ease-in-out;
}

.nav--mobile.open {
  display: flex;
}

@keyframes slideDown {
  from {
    opacity: 0;
    transform: translateY(-10px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.nav--mobile a {
  padding: var(--spacing-md) 0;
  border-bottom: 1px solid rgba(255, 255, 255, 0.1);
  color: rgba(248, 250, 252, 0.85);
}

.nav--mobile a:hover {
  color: var(--color-accent);
}

/* Grid Layout */
.grid {
  display: grid;
  gap: var(--spacing-2xl);
}

.grid--2 {
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
}

.grid--3 {
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
}

.grid--4 {
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
}

/* Flexbox Utilities */
.flex {
  display: flex;
  gap: var(--spacing-md);
  align-items: center;
}

.flex--column {
  flex-direction: column;
}

.flex--center {
  justify-content: center;
}

.flex--between {
  justify-content: space-between;
}

.flex--start {
  justify-content: flex-start;
}

/* Responsive Mobile Navigation */
@media (max-width: 768px) {
  nav {
    display: none;
  }

  .hamburger {
    display: flex;
  }

  .grid--2,
  .grid--3,
  .grid--4 {
    grid-template-columns: 1fr;
  }
}

/* Sections Global Styling */
section {
  padding: var(--spacing-3xl) 0;
}

section:nth-child(even) {
  background-color: rgba(30, 33, 57, 0.3);
}

/* Two Column Layout */
.two-column {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--spacing-3xl);
  align-items: center;
}

.two-column--reverse {
  direction: rtl;
}

.two-column--reverse > * {
  direction: ltr;
}

@media (max-width: 768px) {
  .two-column {
    grid-template-columns: 1fr;
    gap: var(--spacing-2xl);
  }

  .two-column--reverse {
    direction: ltr;
  }
}

/* Centered Content */
.text--center {
  text-align: center;
}

.max-width--sm {
  max-width: 600px;
  margin: 0 auto;
}

.max-width--md {
  max-width: 800px;
  margin: 0 auto;
}

.max-width--lg {
  max-width: 1000px;
  margin: 0 auto;
}

/* Features Section */
#features-section {
  padding: var(--spacing-4xl) 0;
  background-color: rgba(15, 23, 42, 0.5);
}

.features-grid {
  display: grid;
  grid-template-columns: 0.85fr 1.3fr;
  gap: var(--spacing-4xl);
  align-items: end;
}

.features-image {
  border-radius: 20px;
  overflow: hidden;
  box-shadow: 0 20px 40px rgba(0, 0, 0, 0.4);
  border: 1px solid rgba(255, 255, 255, 0.1);
  aspect-ratio: 2/3;
  order: 1;
}

.features-image img {
  width: 100%;
  height: 100%;
  display: block;
  object-fit: cover;
}

.features-content {
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  height: 100%;
  order: 2;
}

.feature-item {
  display: flex;
  gap: var(--spacing-2xl);
  align-items: flex-start;
  margin-bottom: var(--spacing-2xl);
  text-align: left;
}

.feature-item:last-child {
  margin-bottom: 0;
}

  color: var(--color-white);
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  margin-top: auto;
}

footer a {
  transition: var(--transition-smooth);
}

footer a:hover {
  color: var(--color-accent);
}