:root {
  --imperial-red: #f94144ff;
  --orange-crayola: #f3722cff;
  --carrot-orange: #f8961eff;
  --coral: #f9844aff;
  --saffron: #f9c74fff;
  --pistachio: #90be6dff;
  --zomp: #43aa8bff;
  --dark-cyan: #4d908eff;
  --paynes-gray: #577590ff;
  --cerulean: #277da1ff;
  --light-bg: #fdfdfdff;
  --light-text: #333333ff;
  --light-gray: #666666ff;
  --gold: #f9c74fff; 

  /* shadow vars for light theme */
  --shadow-soft: 0 6px 18px rgba(16,24,40,0.06);
  --shadow-strong: 0 12px 40px rgba(16,24,40,0.10);
  --text-shadow-subtle: 0 1px 0 rgba(255,255,255,0.6);
}

body {
  margin: 0;
  font-family: Arial, sans-serif;
  background: var(--light-bg);
  color: var(--light-text);
  overflow-x: hidden;
}

/* Header + navigation */
header {
  background: var(--cerulean);
  color: white;
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 1rem 2rem;
}

header .logo {
  font-size: 1.5rem;
  font-weight: bold;
  text-decoration: none;
  color: white;
}

nav ul {
  list-style: none;
  display: flex;
  gap: 1rem;
  margin: 0;
  padding: 0;
}

nav ul li a {
  color: white;
  text-decoration: none;
  font-weight: bold;
  transition: color 0.3s;
}

nav ul li a:hover,
nav ul li a.active {
  color: var(--gold);
}

/* Dark mode toggle button */
#darkModeToggle {
  background: none;
  border: none;
  color: white;
  font-size: 1.3rem;
  cursor: pointer;
  margin-left: 1rem;
  transition: color 0.3s;
}
#darkModeToggle:hover {
  color: var(--gold);
}

/* Main layout */
main {
  max-width: 1200px;
  margin: 2rem auto;
  padding: 1rem;
}

/* Footer */
footer {
  background: var(--light-gray);
  color: var(--light-text);
  text-align: center;
  padding: 1.5rem;
  margin-top: 2rem;
}

/* =========================
   DARK MODE
   ========================= */
[data-theme="dark"] {
  --imperial-red: #ff6b6bff;
  --orange-crayola: #ffa66cff;
  --carrot-orange: #ffb85cff;
  --coral: #ff8c7aff;
  --saffron: #ffe066ff;
  --pistachio: #7bed9fff;
  --zomp: #70c1b3ff;
  --dark-cyan: #6699ccff;
  --paynes-gray: #b0bcd4ff;
  --cerulean: #1b5f99ff;
  --light-bg: #222831ff;
  --light-text: #fdfdfdff;
  --light-gray: #444444ff;
  --gold: #ffe066ff;

    /* shadow vars for dark theme (darker, more contrast) */
  --shadow-soft: 0 8px 24px rgba(0,0,0,0.55);
  --shadow-strong: 0 14px 44px rgba(0,0,0,0.65);
  --text-shadow-subtle: 0 1px 0 rgba(0,0,0,0.6);
}

[data-theme="dark"] body {
  background: var(--light-bg);
  color: var(--light-text);
}

[data-theme="dark"] header {
  background: var(--cerulean);
  color: var(--light-text);
}

[data-theme="dark"] header .logo {
  color: var(--light-text);
}

[data-theme="dark"] nav ul li a {
  color: var(--light-text);
}

[data-theme="dark"] nav ul li a:hover,
[data-theme="dark"] nav ul li a.active {
  color: var(--gold);
}

[data-theme="dark"] #darkModeToggle {
  color: var(--light-text);
}

[data-theme="dark"] #darkModeToggle:hover {
  color: var(--gold);
}

[data-theme="dark"] footer {
  background: var(--light-gray);
  color: var(--light-text);
}