/* Layout System - Grid, Header, Main Sections */

/* === STICKY HEADER === */
header {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  background-color: var(--color-background);
  color: var(--color-header);
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: var(--spacing-md);
  z-index: 1000;
  border-bottom: 0.5px solid var(--color-border);
}

main {
  margin-top: 85px; /* index spacing for sticky header */
}

.logo-content {
  gap: 15px;
  display: flex;
  align-items: center;
  width: 100%; 
}

header label{
  margin-left: auto; 
}

.title-block {
  display: flex;
  flex-direction: column;
}

/* === NAVIGATION === */
nav a {
  color: var(--color-link);
  margin-left: var(--spacing-sm);
}

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

/* === PAGE GRID SYSTEM === */
.page-grid {
  display: grid;
  grid-template-columns: repeat(var(--grid-columns), 1fr);
  gap: var(--grid-gap);
  max-width: var(--container-max-width);
  margin: 0 auto;
  padding: 0 var(--container-padding);
}

/* grid span utilities */
.span-1 { grid-column: span 1; }
.span-2 { grid-column: span 2; }
.span-3 { grid-column: span 3; }
.span-4 { grid-column: span 4; }
.span-5 { grid-column: span 5; }
.span-6 { grid-column: span 6; }
.span-7 { grid-column: span 7; }
.span-8 { grid-column: span 8; }
.span-9 { grid-column: span 9; }
.span-10 { grid-column: span 10; }
.span-11 { grid-column: span 11; }
.span-12 { grid-column: span 12; }

/* === SECTIONS === */
#meal-of-the-day {
  background-color: var(--color-section);
  padding: var(--spacing-xxl) var(--spacing-md);
  text-align: center;
}

#meals {
  background-color: var(--color-background);
  padding: var(--spacing-md);
  text-align: center;
}

#cuisines {
  background-color: var(--color-background);
  padding: var(--spacing-xl) var(--spacing-md);
  text-align: center;
}

#tastes {
  background-color: var(--color-background);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  width: 100%;
  padding: var(--spacing-lg) var(--spacing-xl);
  text-align: center;
}

#tastes h3 {
  margin-bottom: 25px;
}

/* === GRID LAYOUTS === */
.meals-grid {
  display: flex;
  justify-content: center;
  align-items: center;
  gap: var(--spacing-md);
  flex-wrap: wrap;
  margin-top: var(--spacing-md);
}

.cuisines-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: var(--spacing-lg);
  justify-items: center;
  margin-top: var(--spacing-md);
  width: 100%;
}

.mealofday-box {
  background-color: inherit;
  display: flex;
  justify-content: center;
  align-items: center;
  padding: var(--spacing-md);
  gap: var(--spacing-md);
  flex-wrap: wrap;
}


/* === RESPONSIVE DESIGN === */

/* Mobile (480px max) - 4 columns */
@media (max-width: 480px) {
  :root {
    --grid-columns: 4;
    --spacing-md: 15px;
    --spacing-lg: 20px;
  }

  .cuisines-grid {
    grid-template-columns: 1fr;
  }

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

  #meal-of-the-day {
    padding: var(--spacing-lg) var(--spacing-sm);
  }
}

/* Tablet (768px max) -  8 columns */
@media (max-width: 768px) {
  :root {
    --grid-columns: 8;
  }

  header {
    flex-direction: column;
    gap: var(--spacing-sm);
    padding: var(--spacing-sm);
  }

  nav {
    width: 100%;
    text-align: center;
  }

  nav a {
    margin: 0 var(--spacing-xs);
  }

  main {
    margin-top: 120px;
  }

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

/* Desktop (1440px min) - 16 columns */
@media (min-width: 1440px) {
  :root {
    --grid-columns: 16;
    --container-max-width: 1600px;
  }

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