/* ============================================================
   GLOBAL SHARED STYLES — style.css
   Light mode by default. Dark mode via [data-theme="dark"]
   ============================================================ */

@import url('https://fonts.googleapis.com/css2?family=Plus+Jakarta+Sans:wght@400;500;600;700;800&family=JetBrains+Mono:wght@400;600&display=swap');

/* ── CSS Variables ── */
:root {
  --bg: #f5f7ff;
  --surface: #ffffff;
  --surface2: #eef1fb;
  --border: #dde2f0;
  --text: #1a1d2e;
  --text-muted: #6b7280;
  --accent: #4f6ef7;
  --accent-light: #e8ecfe;
  --accent-hover: #3a57e8;
  --success: #10b981;
  --warning: #f59e0b;
  --danger: #ef4444;
  --shadow-sm: 0 1px 4px rgba(79, 110, 247, 0.08);
  --shadow-md: 0 4px 20px rgba(79, 110, 247, 0.12);
  --shadow-lg: 0 8px 40px rgba(79, 110, 247, 0.16);
  --radius: 14px;
  --radius-sm: 8px;
  --nav-height: 64px;
  --font: 'Plus Jakarta Sans', sans-serif;
  --font-mono: 'JetBrains Mono', monospace;
  --transition: all 0.25s ease;
}

/* ── Dark Mode ── */
[data-theme="dark"] {
  --bg: #0f1117;
  --surface: #1a1d2e;
  --surface2: #232740;
  --border: #2e3350;
  --text: #e8eaf6;
  --text-muted: #8b93b0;
  --accent: #6b83f8;
  --accent-light: #1e2240;
  --accent-hover: #7d93ff;
  --shadow-sm: 0 1px 4px rgba(0, 0, 0, 0.3);
  --shadow-md: 0 4px 20px rgba(0, 0, 0, 0.4);
  --shadow-lg: 0 8px 40px rgba(0, 0, 0, 0.5);
}

/* ── Reset ── */
*,
*::before,
*::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  scroll-behavior: smooth;
}

body {
  font-family: var(--font);
  background-color: var(--bg);
  color: var(--text);
  min-height: 100vh;
  transition: background-color 0.3s ease, color 0.3s ease;
  line-height: 1.6;
}

/* ── NAV ── */
nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 2rem;
  height: var(--nav-height);
  background: var(--surface);
  border-bottom: 1px solid var(--border);
  box-shadow: var(--shadow-sm);
  position: sticky;
  top: 0;
  z-index: 999;
  transition: var(--transition);
}

.nav-brand {
  font-size: 1.1rem;
  font-weight: 800;
  color: var(--accent);
  text-decoration: none;
  letter-spacing: -0.02em;
  display: flex;
  align-items: center;
  gap: 0.4rem;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 0.6rem;
}

nav a {
  display: inline-flex;
  align-items: center;
  padding: 0.45rem 1rem;
  border-radius: 999px;
  border: 1.5px solid var(--border);
  text-decoration: none;
  color: var(--text-muted);
  font-size: 0.82rem;
  font-weight: 600;
  transition: var(--transition);
  background: transparent;
}

nav a:hover,
nav a[aria-current='page'] {
  color: var(--accent);
  background: var(--accent-light);
  border-color: var(--accent);
}

/* ── Dark Mode Toggle Button ── */
.theme-toggle {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 38px;
  height: 38px;
  border-radius: 50%;
  border: 1.5px solid var(--border);
  background: var(--surface2);
  cursor: pointer;
  font-size: 1rem;
  color: var(--text-muted);
  transition: var(--transition);
  flex-shrink: 0;
}

.theme-toggle:hover {
  background: var(--accent-light);
  border-color: var(--accent);
  color: var(--accent);
}

/* ── Utility ── */
.tag {
  display: inline-block;
  font-family: var(--font-mono);
  font-size: 0.65rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--accent);
  background: var(--accent-light);
  padding: 0.25rem 0.7rem;
  border-radius: 999px;
  font-weight: 600;
  margin-bottom: 0.75rem;
}


.copyright {
  width: 100%;
  text-align: center;
  padding: 25px 0;
  background: #1a1c2f;
  font-weight: 300;
  margin-top: 20px;
}

.fa-solid.fa-heart {
  color: crimson;
}

.fa-solid.fa-wand-magic-sparkles {
  color: aqua;
}

.fa-regular.fa-hand-peace {
  color: burlywood;
}