/* ===============================
   1. Design Tokens
   =============================== */

:root {
  --color-background: #f6f1e8;
  --color-surface: #fffaf2;
  --color-text: #2f2822;
  --color-muted: #6d6258;

  --color-primary: #5a3722;
  --color-primary-dark: #321d0e;
  --color-accent: #6f8f5a;
  --color-border: #e1d6c5;

  --shadow-soft: 0 8px 24px rgba(0, 0, 0, 0.08);

  --max-width: 1000px;
}

/* ===============================
   2. Base Styles
   =============================== */

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  font-family: "Segoe UI", Arial, sans-serif;
  font-size: 16px;
  margin: 0;
  background-color: var(--color-background);
  color: var(--color-text);
}

a {
  color: inherit;
  text-decoration: none;
}

img {
  max-width: 100%;
  height: auto;
  display: block;
}

/* ===============================
   3. Header and Navigation
   =============================== */

header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  height: 120px;
  padding: 15px 40px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 24px;
  background-image: linear-gradient(
    to right,
    var(--color-primary),
    var(--color-primary-dark)
  );
  color: white;
  box-shadow: var(--shadow-soft);
  z-index: 1000;
}

.header-content {
  display: flex;
  flex-direction: column;
  justify-content: center;
}

header h1 {
  margin: 0;
  font-size: 2.5em;
  color: var(--color-accent);
  text-shadow: 1px 1px 2px rgba(0, 0, 0, 0.35);
}

#collegelogo {
  width: auto;
  height: 92px;
  flex-shrink: 0;
}

nav ul {
  display: flex;
  flex-wrap: wrap;
  gap: 12px 20px;
  list-style: none;
  margin: 18px 0 0;
  padding: 0;
}

nav li {
  margin: 0;
}

header nav li a {
  color: white;
  text-decoration: none;              
  padding: 3px 8px;
  border-radius: 4px;                 
  border: 1px solid transparent;      
}

header nav li a:hover {
  background-color: var(--color-accent);
  color: var(--color-primary-dark);
}

header nav li a:focus {
  outline: 2px dashed var(--color-accent);        
  outline-offset: 2px;
}

/* ===============================
   4. Layout and Section Cards
   =============================== */

main {
  min-height: 100vh;
  padding: 150px 20px 40px;
  background-color: var(--color-background);
}

main section {
  max-width: var(--max-width);
  margin: 0 auto 40px;
  padding: 28px;
  background-color: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: 10px;
  box-shadow: var(--shadow-soft);
  scroll-margin-top: 140px;
}

main section h2 {
  margin-top: 0;
  color: var(--color-primary);
}

main section h2,
main section h3 {
  text-align: left;                   
}

main section p {
  text-align: left;
}

/* ===============================
   5. Images and Figures
   =============================== */

.hero-image {
  width: 100%;
  border: 3px solid var(--color-primary);
  border-radius: 6px;
}

figure {
  margin: 20px 0;
}

.campus-gallery {
  display: flex;
  flex-wrap: wrap;
  gap: 16px;
  justify-content: center;
}

.campus-image {
  width: min(100%, 420px);
  border: 3px solid var(--color-primary);
  border-radius: 6px;
}

.campus-gallery figcaption {
  flex-basis: 100%;
  margin-top: 4px;
  color: var(--color-muted);
  font-style: italic;
  text-align: center;
}

/* ===============================
   6. Lists and Button
   =============================== */

.feature-list {
  padding-left: 20px;
}

.feature-list li {
  margin-bottom: 8px;
  padding: 8px 10px;
  background-color: rgba(111, 143, 90, 0.12);
  border-left: 4px solid var(--color-accent);
  border-radius: 4px;
}

.button {
  display: inline-block;
  margin-top: 12px;
  padding: 10px 18px;
  border-radius: 6px;
  box-shadow: var(--shadow-soft);
  font-weight: 600;
  transition: background-color 0.2s ease, transform 0.2s ease;
}

.button-primary {
  background-color: var(--color-primary);
  color: white;
  border: 1px solid var(--color-primary-dark);
}

.button-primary:hover {
  background-color: var(--color-primary-dark);
  transform: translateY(-1px);
}

.button-primary:focus {
  outline: 2px solid var(--color-accent);
  outline-offset: 3px;
}

/* ===============================
   7. Footer
   =============================== */

footer {
  background-color: var(--color-primary-dark);
  color: var(--color-surface);
  text-align: center;
  padding: 18px 12px;
  font-size: 0.9rem;
}

/* ===============================
   8. Responsive Design
   =============================== */

@media (max-width: 768px) {
  body {
    font-size: 15px;
  }

  header {
    position: static;
    height: auto;
    padding: 24px 20px;
    flex-direction: column;
    text-align: center;
  }

  .header-content {
    align-items: center;
  }

  header h1 {
    font-size: 2rem;
  }

  #collegelogo {
    height: 80px;
    margin: 0 auto;
  }

  nav ul {
    flex-direction: column;
    align-items: center;
    margin-top: 18px;
    gap: 8px;
  }

  nav li {
    margin: 0;
  }

  header nav li a {
    display: inline-block;
    padding: 6px 10px;
  }

  main {
    padding: 24px 16px 32px;
  }

  main section {
    padding: 22px 18px;
    margin-bottom: 28px;
  }

  main section h2 {
    font-size: 1.4rem;
  }

  .campus-gallery {
    gap: 12px;
  }

  .button {
    width: 100%;
    text-align: center;
  }

  footer {
    padding: 20px 12px;
  }
}