:root {
  --bg: #f5f5f5;
  --text: #111827;

  --header-bg: #111827;
  --header-border: #dddddd;

  --nav-btn-bg: #1f2937;
  --nav-btn-text: #e5e7eb;
  --nav-btn-border: #374151;

  --nav-btn-hover-bg: #2563eb;
  --nav-btn-hover-border: #2563eb;

  --focus-outline: #93c5fd;
}

:root.dark {
  --bg: #020617;
  --text: #e5e7eb;

  --header-bg: #020617;
  --header-border: #1f2937;

  --nav-btn-bg: #111827;
  --nav-btn-text: #e5e7eb;
  --nav-btn-border: #374151;

  --nav-btn-hover-bg: #2563eb;
  --nav-btn-hover-border: #2563eb;

  --focus-outline: #93c5fd;
}

/* base */
body {
  font-family: system-ui, -apple-system, BlinkMacSystemFont, sans-serif;
  margin: 0;
  padding: 0;
  line-height: 1.5;
  background: var(--bg);
  color: var(--text);
}

header {
  padding: 1rem;
  border-bottom: 1px solid var(--header-border);
  background: var(--header-bg);
}

/* nav layout */
.nav {
  display: flex;
  gap: 12px;
  justify-content: center;
}

/* buttons */
.nav-btn,
.primary-btn {
  display: inline-block;
  padding: 8px 18px;
  border-radius: 999px;
  border: 1px solid var(--nav-btn-border);
  background: var(--nav-btn-bg);
  color: var(--nav-btn-text);
  font-size: 0.95rem;
  text-decoration: none;
  transition: background 0.15s ease, border-color 0.15s ease, transform 0.1s ease;
}

.nav-btn:hover,
.primary-btn:hover {
  background: var(--nav-btn-hover-bg);
  border-color: var(--nav-btn-hover-border);
  transform: translateY(-1px);
}

.nav-btn:focus-visible,
.primary-btn:focus-visible {
  outline: 2px solid var(--focus-outline);
  outline-offset: 2px;
}

/* lightbulb */
#theme-toggle {
  width: 56px;
  height: 56px;
  border-radius: 50%;
  border: 1px solid #374151;

  background: radial-gradient(circle at top, #1f2937, #020617);

  display: flex;
  align-items: center;
  justify-content: center;

  font-size: 1.5rem;
  cursor: pointer;

  box-shadow:
    0 0 0 1px rgba(255,255,255,0.05),
    0 0 25px rgba(59,130,246,0.25);

  transition:
    transform 0.15s ease,
    box-shadow 0.15s ease,
    background 0.15s ease;
}

#theme-toggle:hover {
  transform: translateY(-1px) scale(1.05);
  box-shadow:
    0 0 0 1px rgba(255,255,255,0.08),
    0 0 35px rgba(59,130,246,0.45);
}

#theme-toggle:focus-visible {
  outline: none;
  box-shadow:
    0 0 0 2px #93c5fd,
    0 0 30px rgba(59,130,246,0.6);
}

main {
  max-width: 800px;
  margin: 2rem auto;
  padding: 0 1rem;
}

.cv-section {
  margin-top: 2rem;
}

.cv-section > h2 {
  font-size: 1.4rem;
  margin-bottom: 1rem;
}

/* card for each */
.experience-card {
  background: #ffffff; /* lys i light mode */
  border: 1px solid rgba(148, 163, 184, 0.4);
  border-radius: 12px;
  padding: 1.25rem 1.5rem;
  margin-bottom: 1rem;
  box-shadow: 0 8px 16px rgba(15, 23, 42, 0.08);
}

/* Dark mode for card */
:root.dark .experience-card {
  background: rgba(15, 23, 42, 0.8);
  border-color: rgba(148, 163, 184, 0.5);
}

/* Header in card */
.experience-header {
  display: flex;
  justify-content: space-between;
  gap: 1rem;
  align-items: baseline;
  margin-bottom: 0.5rem;

  padding: 0;
  border-bottom: none;
  background: transparent;
}

.experience-header h3 {
  margin: 0;
  font-size: 1.1rem;
}

.experience-company {
  margin: 0.15rem 0 0;
  font-size: 0.9rem;
  opacity: 0.8;
}

.experience-period {
  margin: 0;
  font-size: 0.9rem;
  font-weight: 500;
}

/* Kort beskrivelse */
.experience-summary {
  margin: 0.75rem 0;
}

/* List */
.experience-points {
  margin: 0.5rem 0 0.75rem;
  padding-left: 1.2rem;
}

.experience-points li {
  margin-bottom: 0.25rem;
}

/* tags */
.tags {
  display: flex;
  flex-wrap: wrap;
  gap: 0.35rem;
  margin-top: 0.5rem;
}

.tag {
  display: inline-block;
  padding: 0.15rem 0.6rem;
  border-radius: 999px;
  font-size: 0.8rem;
  border: 1px solid rgba(148, 163, 184, 0.6);
  background: rgba(148, 163, 184, 0.12);
}

/* fix dark mode */
:root.dark .tag {
  border-color: rgba(148, 163, 184, 0.9);
  background: rgba(15, 23, 42, 0.9);
}