:root {
  --bg-main: #e2e8f0;
  --bg-card: #ffffff;
  --header-bg: #1e293b;
  --header-text: #f8fafc;
  --text-main: #0f172a;
  --text-muted: #64748b;
  --accent: #2563eb;
  --accent-light: #dbeafe;
  --border: #cbd5e1;
  --shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.08);
  --cookie-color: #d97706;
  --db-color: #059669;
}

* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

body {
  font-family:
    "Segoe UI",
    system-ui,
    -apple-system,
    sans-serif;
  background-color: var(--bg-main);
  color: var(--text-main);
  line-height: 1.6;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

/* TOP-SEKTION / HEADER (2 RADER) */
header {
  background-color: var(--header-bg);
  color: var(--header-text);
  padding: 1rem 2rem 0.5rem 2rem;
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
  border-bottom: 3px solid var(--accent);
}

.header-top {
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 1rem;
}

header h1 {
  font-size: 1.25rem;
  font-weight: 700;
  letter-spacing: 0.5px;
}

nav ul {
  display: flex;
  list-style: none;
  gap: 0.5rem;
  align-items: center;
  flex-wrap: wrap;
}

nav a {
  color: #cbd5e1;
  text-decoration: none;
  font-size: 0.85rem;
  font-weight: 500;
  padding: 0.4rem 0.8rem;
  border-radius: 6px;
  transition: all 0.2s ease;
}

nav a:hover,
nav a.active {
  color: #ffffff;
  background-color: #2563eb;
}

/* RAD 2: UPPGIFTSLÄNKAR */
.header-tasks {
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  padding-top: 0.6rem;
  padding-bottom: 0.4rem;
}

.header-tasks a {
  font-size: 0.8rem;
  background-color: rgba(255, 255, 255, 0.05);
  border: 1px solid rgba(255, 255, 255, 0.1);
}

.header-tasks a:hover {
  background-color: var(--accent);
  border-color: var(--accent);
  color: #ffffff;
}

/* INLOGGNINGS-BADGES OCH KNAPPAR */
.btn-nav-login {
  border: 1px solid currentColor;
}

.btn-cookie {
  color: #fcd34d !important;
}

.btn-db {
  color: #6ee7b7 !important;
}

/* HUVUDINNEHÅLL */
.container {
  max-width: 1100px;
  margin: 0 auto;
  padding: 2.5rem 1.5rem;
  flex: 1;
  width: 100%;
}

.hero {
  background-color: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 2rem;
  margin-bottom: 2.5rem;
  box-shadow: var(--shadow);
}

.hero h2 {
  font-size: 1.75rem;
  margin-bottom: 0.5rem;
  color: var(--text-main);
}

.hero p {
  color: var(--text-muted);
  font-size: 1rem;
}

/* GRID OCH KORT */
.grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
  gap: 1.5rem;
}

.card {
  background-color: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 1.5rem;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  box-shadow: var(--shadow);
  transition:
    transform 0.2s ease,
    border-color 0.2s ease;
}

.card:hover {
  transform: translateY(-3px);
  border-color: var(--accent);
}

.card h3 {
  font-size: 1.15rem;
  margin-bottom: 0.75rem;
  color: var(--text-main);
}

.card p {
  font-size: 0.88rem;
  color: var(--text-muted);
  margin-bottom: 1.5rem;
}

.card code {
  background-color: #f8fafc;
  color: var(--accent);
  padding: 0.2rem 0.4rem;
  border-radius: 4px;
  font-size: 0.825rem;
  border: 1px solid var(--border);
}

.btn {
  display: block;
  width: 100%;
  text-align: center;
  padding: 0.65rem 1rem;
  background-color: #f1f5f9;
  color: var(--text-main);
  border: 1px solid var(--border);
  border-radius: 6px;
  text-decoration: none;
  font-weight: 600;
  font-size: 0.9rem;
  transition: all 0.2s ease;
}

.card:hover .btn {
  background-color: var(--accent);
  color: #ffffff;
  border-color: var(--accent);
}

/* FOOTER */
footer {
  background-color: var(--header-bg);
  color: #cbd5e1;
  border-top: 1px solid var(--border);
  text-align: center;
  padding: 1.25rem;
  font-size: 0.85rem;
}