/* ==============================
Variables
============================== */

:root {
  color-scheme: light dark;

  /* Colors */
  --color-bg: light-dark(#8db3a4, #354740);
  --color-text: light-dark(black, white);
  --color-card: light-dark(#617d72, #232f2a);
  --color-navbar-active: light-dark(#739386, #2b3a34);

  /* Layout and Spacing */
  --border-radius: 10px;
  --section-spacing: 40px;
  --container-padding: 20px;

  /* Typography */
  --font-base: 16px;
  --line-height-base: 1.5;
}

/* ==============================
Base Styles
============================== */

*,
*::before,
*::after {
  box-sizing: border-box;
}

a:hover,
button:hover {
  opacity: 0.7;
  transition: opacity 0.4s ease;
}

body {
  margin: 0;
  padding: 0;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  background-color: var(--color-bg);
  font-family: system-ui, -apple-system, sans-serif;
  font-size: var(--font-base);
  line-height: var(--line-height-base);
  color: var(--color-text);
}

footer {
  margin-top: auto;
  text-align: center;
  padding: 3px 0;
  font-size: 0.9rem;
}

/* Grid System */
.row {
  display: grid;
  grid-template-columns: repeat(12, 1fr);
  /* gap: 20px; */
}

/* Typography */
h1 {
  padding: 0;
  margin: 0;
  font-size: 2.125rem;
  font-weight: bold;
}

h2 {
  margin: 5px 0 10px;
  padding: 0;
  font-size: 1.125rem;
  font-weight: normal;
  font-style: italic;
}

/* ==============================
Navbar
============================== */

#navbar-container {
  position: sticky;
  top: 0;
  z-index: 1000;
  background-color: var(--color-card);
  padding: 10px;
}

#navbar-container .row {
  display: flex;
  justify-content: flex-start;
  align-items: center;
  gap: 10px;
}

.navbar-item {
  flex: 0 0 auto;
}

.navbar-button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 8px 12px;
  background-color: var(--color-bg);
  border-radius: calc(0.5 * var(--border-radius));
  text-decoration: none;
}

.navbar-button.active {
  background-color: var(--color-navbar-active);
}

.navbar-text {
  font-weight: bolder;
  color: var(--color-text);
  margin: 0;
  font-size: 1rem;
}

/* ==============================
Responsiveness
============================== */

@media (max-width: 600px) {
  body {
    font-size: 14px;
  }

  h1 {
    font-size: clamp(2rem, 6vw, 2.5rem);
  }

  h2 {
    font-size: clamp(1.125rem, 4vw, 1.5rem);
    margin: 8px 0;
  }

  .section-container {
    margin-left: 5vw;
    margin-right: 5vw;
  }

  #navbar-container .row {
    justify-content: center;
    gap: 1.5vw;
  }

  .navbar-button {
    min-width: 14vw;
    height: 5vw;
    min-width: 70px;
    min-height: 32px;
    padding: 6px 10px;
  }

  .navbar-text {
    font-size: clamp(0.875rem, 2.25vw, 1rem);
  }
}