:root {
  /* Light theme base colors */
  --page-bg: #f8fafc;
  --card-bg: #ffffff;
  --nav-bg: rgba(248, 250, 252, 0.9);
  --text-main: #0f172a;
  --text-muted: #64748b;
  --accent: #2563eb;

  /* Backwards-compatible tokens used across the site */
  --primary: var(--accent);
  --primary-dark: #1d4ed8;
  --bg: var(--page-bg);
  --card: var(--card-bg);
  --text: var(--text-main);
  --muted: var(--text-muted);
  --shadow-soft: 0 10px 30px rgba(15, 23, 42, 0.12);
  font-family: "Segoe UI", system-ui, -apple-system, sans-serif;
}

/* Ensure legacy tokens override any inline defaults on the Träna page. */
:root {
  --accent: #2563eb !important;
  --primary: var(--accent) !important;
  --primary-dark: #1d4ed8 !important;
  --bg: var(--page-bg) !important;
  --card: var(--card-bg) !important;
  --text: var(--text-main) !important;
  --muted: var(--text-muted) !important;
}

/* Dark theme overrides */
:root[data-theme="dark"] {
  --page-bg: #0f172a !important;
  --card-bg: #111827 !important;
  --nav-bg: rgba(17, 24, 39, 0.9) !important;
  --text-main: #395794 !important;
  --text-muted: #9ca3af !important;
  --accent: #7aa2ff !important;
  --primary-dark: #648bdb !important;
  --shadow-soft: 0 10px 30px rgba(0, 0, 0, 0.5) !important;
  /* Keep legacy tokens in sync for dark mode */
  --bg: var(--page-bg) !important;
  --card: var(--card-bg) !important;
  --text: var(--text-main) !important;
  --muted: var(--text-muted) !important;
}

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

body {
  margin: 0;
  min-height: 100vh;
  background:
    radial-gradient(circle at 20% 20%, color-mix(in srgb, var(--accent) 12%, var(--page-bg)), transparent 35%),
    radial-gradient(circle at 80% 10%, color-mix(in srgb, var(--accent) 8%, var(--page-bg)), transparent 32%),
    var(--bg);
  color: var(--text);
  line-height: 1.6;
  overflow-x: hidden;
}

a {
  color: var(--primary-dark);
  text-decoration: none;
}

a:hover {
  color: var(--primary);
}

img {
  max-width: 100%;
  height: auto;
}

.page-ready .fade-in {
  opacity: 1;
  transform: none;
}

.site-shell {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 1.25rem 2.5rem;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 10;
  -webkit-backdrop-filter: blur(8px);
  backdrop-filter: blur(8px);
  background: var(--nav-bg);
  border-bottom: 1px solid rgba(100, 116, 139, 0.18);
}

.site-header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  padding: 0.9rem 1.25rem;
  max-width: 1200px;
  margin: 0 auto;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 0.7rem;
  font-weight: 700;
  color: var(--text);
}

.brand-mark {
  width: 42px;
  height: 42px;
  border-radius: 12px;
  background: linear-gradient(135deg, var(--primary), var(--primary-dark));
  display: grid;
  place-items: center;
  color: #fff;
  font-weight: 800;
  letter-spacing: 0.02em;
  box-shadow: 0 6px 14px rgba(37, 99, 235, 0.2);
}

.nav-toggle {
  display: none;
  align-items: center;
  justify-content: center;
  background: var(--accent);
  color: #fff;
  border: none;
  border-radius: 10px;
  padding: 0.55rem 0.75rem;
  font-weight: 700;
  box-shadow: 0 8px 18px rgba(37, 99, 235, 0.28);
}

.site-nav {
  display: flex;
  align-items: center;
  gap: 1rem;
}

.site-nav a {
  font-weight: 600;
  color: var(--text);
  padding: 0.4rem 0.6rem;
  border-radius: 8px;
  transition: background 0.2s ease, color 0.2s ease;
}

.site-nav a:hover,
.site-nav a:focus-visible,
.site-nav a[aria-current="page"] {
  background: rgba(37, 99, 235, 0.1);
  color: var(--primary-dark);
}

.cta-button {
  display: inline-flex;
  align-items: center;
  gap: 0.45rem;
  background: var(--accent);
  color: #fff;
  border-radius: 14px;
  padding: 0.85rem 1.3rem;
  font-weight: 700;
  border: none;
  box-shadow: 0 10px 18px rgba(37, 99, 235, 0.25);
  transition: transform 0.12s ease, box-shadow 0.2s ease;
}

.cta-button:hover {
  transform: translateY(-1px);
  box-shadow: 0 14px 30px rgba(37, 99, 235, 0.28);
}

.cta-button.secondary {
  background: #fff;
  color: var(--primary-dark);
  border: 1px solid rgba(37, 99, 235, 0.35);
  box-shadow: none;
}

.cta-button.secondary:hover {
  box-shadow: var(--shadow-soft);
}

.cta-group {
  display: flex;
  gap: 0.75rem;
  align-items: center;
  flex-wrap: wrap;
}

main {
  padding: 2.8rem 0 0;
}

.hero {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 1.75rem;
  align-items: center;
  padding: 2.5rem;
  background: linear-gradient(135deg, rgba(238, 242, 255, 0.9), rgba(224, 242, 254, 0.9));
  border-radius: 20px;
  box-shadow: var(--shadow-soft);
  position: relative;
  overflow: hidden;
}

.hero::after {
  content: "";
  position: absolute;
  bottom: -40px;
  right: -30px;
  width: 200px;
  height: 200px;
  background: radial-gradient(circle, rgba(37, 99, 235, 0.35), transparent 65%);
  filter: blur(10px);
}

.hero h1 {
  font-size: clamp(2rem, 4vw, 2.8rem);
  margin: 0 0 0.6rem;
}

.hero p.lead {
  font-size: 1.05rem;
  color: var(--muted);
  margin: 0 0 1rem;
}

.hero-pills {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  margin: 1.25rem 0;
}

.pill {
  background: #fff;
  color: var(--primary-dark);
  padding: 0.65rem 0.95rem;
  border-radius: 999px;
  font-weight: 700;
  box-shadow: 0 10px 18px rgba(15, 23, 42, 0.08);
  border: 1px solid rgba(100, 116, 139, 0.18);
}

.hero-card {
  background: var(--card);
  padding: 1.4rem;
  border-radius: 14px;
  box-shadow: var(--shadow-soft);
  border: 1px solid rgba(100, 116, 139, 0.1);
}

.feature-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 1rem;
  margin-top: 1.6rem;
}

.card {
  background: var(--card);
  border-radius: 14px;
  padding: 1.25rem;
  border: 1px solid rgba(100, 116, 139, 0.14);
  box-shadow: 0 12px 26px rgba(15, 23, 42, 0.08);
  transition: transform 0.12s ease, box-shadow 0.2s ease;
}

.card:hover {
  transform: translateY(-4px);
  box-shadow: 0 16px 32px rgba(15, 23, 42, 0.14);
}

.card h3 {
  margin-top: 0;
  margin-bottom: 0.4rem;
}

.card p {
  margin: 0.4rem 0 0;
  color: var(--muted);
}

.section {
  margin: 2.5rem 0;
}

.section h2 {
  margin: 0 0 0.8rem;
}

.section.lead-copy {
  text-align: center;
}

.highlight-list {
  list-style: none;
  padding: 0;
  margin: 0.2rem 0 0;
  color: var(--muted);
}

.highlight-list li {
  margin: 0.35rem 0;
  padding-left: 1.5rem;
  position: relative;
}

.highlight-list li::before {
  content: "✔";
  position: absolute;
  left: 0;
  color: var(--primary);
  font-weight: 800;
}

.list {
  margin: 0.3rem 0 0;
  padding-left: 1.1rem;
  color: var(--muted);
}

.ad-slot {
  margin: 2rem 0;
  padding: 1.4rem;
  border: 2px dashed rgba(100, 116, 139, 0.45);
  border-radius: 16px;
  text-align: center;
  color: var(--muted);
  background: var(--card);
}

.ad-slot.small {
  padding: 0.9rem;
  font-size: 0.95rem;
}

.callout {
  background: linear-gradient(135deg, rgba(37, 99, 235, 0.1), rgba(250, 204, 21, 0.12));
  border: 1px solid rgba(37, 99, 235, 0.18);
  border-radius: 16px;
  padding: 1.6rem;
  box-shadow: var(--shadow-soft);
}

.footnotes {
  font-size: 0.95rem;
  color: var(--muted);
}

footer {
  border-top: 1px solid rgba(100, 116, 139, 0.18);
  padding: 1.5rem 0 2rem;
  background: var(--nav-bg);
}

.footer-inner {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 1.25rem;
  display: grid;
  gap: 0.8rem;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  align-items: center;
  color: var(--muted);
}

.footer-links {
  display: flex;
  gap: 0.8rem;
  flex-wrap: wrap;
}

.footer-links a {
  color: var(--primary-dark);
  font-weight: 600;
}

/* Header action area (theme + menu) */
.header-actions {
  display: flex;
  align-items: center;
  gap: 0.6rem;
}

.theme-toggle {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.35rem;
  background: var(--card);
  color: var(--text);
  border: 1px solid rgba(100, 116, 139, 0.3);
  border-radius: 999px;
  padding: 0.45rem 0.7rem;
  box-shadow: 0 6px 12px rgba(15, 23, 42, 0.12);
  transition: background 0.2s ease, color 0.2s ease, box-shadow 0.2s ease;
}

.theme-toggle:hover,
.theme-toggle:focus-visible {
  background: rgba(37, 99, 235, 0.08);
  color: var(--primary-dark);
  box-shadow: 0 10px 18px rgba(37, 99, 235, 0.18);
}

.theme-toggle-icon {
  display: inline-block;
}

.reveal {
  opacity: 0;
  transform: translateY(16px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}

.reveal.revealed {
  opacity: 1;
  transform: translateY(0);
}

/* Training page: align background with the calm gradient and remove legacy overlays */
body.training-page {
  background:
    radial-gradient(circle at 20% 20%, color-mix(in srgb, var(--accent) 12%, var(--page-bg)), transparent 38%),
    radial-gradient(circle at 80% 10%, color-mix(in srgb, var(--accent) 10%, var(--page-bg)), transparent 34%),
    var(--bg);
}

body.training-page::before,
body.training-page::after {
  display: none !important;
}

/* Training page layout shell */
.trainer-layout {
  padding-top: 1.5rem;
  padding-bottom: 2.5rem;
}

.trainer-card {
  background: var(--card);
  border-radius: 24px;
  box-shadow: 0 14px 40px rgba(15, 23, 42, 0.12);
  padding: 1.6rem;
  border: 1px solid rgba(100, 116, 139, 0.14);
  position: relative;
  overflow: hidden;
}

.trainer-card header {
  margin-bottom: 1rem;
}

/* Pill-like tabs for the training nav */
.nav-buttons {
  display: flex;
  gap: 0.6rem;
  flex-wrap: wrap;
  margin: 1rem 0 1.25rem;
}

.nav-buttons .nav-btn {
  background: color-mix(in srgb, var(--accent) 12%, transparent) !important;
  color: var(--text) !important;
  border: 1px solid color-mix(in srgb, var(--accent) 28%, transparent) !important;
  border-radius: 999px !important;
  padding: 0.55rem 1rem !important;
  font-weight: 700;
  cursor: pointer;
  transition: background 0.2s ease, color 0.2s ease, box-shadow 0.2s ease;
}

.nav-buttons .nav-btn.active {
  background: var(--accent) !important;
  color: #fff !important;
  box-shadow: 0 10px 20px rgba(37, 99, 235, 0.25);
}

.nav-buttons .nav-btn:hover {
  background: color-mix(in srgb, var(--accent) 18%, transparent) !important;
  color: var(--primary) !important;
}

/* Training view cards */
.training-page .view {
  background: var(--card) !important;
  border-radius: 18px !important;
  border: 1px solid rgba(100, 116, 139, 0.12) !important;
  box-shadow: 0 12px 28px rgba(15, 23, 42, 0.08) !important;
  padding: 1.25rem !important;
}

.training-page .choices-grid button {
  /* Keep options readable in dark mode */
  background: var(--card) !important;
  color: var(--text-main) !important;
  border: 1px solid color-mix(in srgb, var(--accent) 18%, transparent) !important;
  box-shadow: 0 8px 20px rgba(15, 23, 42, 0.12) !important;
}

.training-page .choices-grid button:hover,
.training-page .choices-grid button:focus-visible {
  border-color: var(--accent) !important;
}

.training-page .panel {
  background: var(--card) !important;
  border-radius: 16px !important;
  border: 1px solid rgba(100, 116, 139, 0.12) !important;
  box-shadow: 0 10px 24px rgba(15, 23, 42, 0.06) !important;
}

.training-page .panel-grid {
  gap: 1rem;
}

.training-page .table-actions {
  gap: 0.65rem;
}

/* Subtle styling for training tables */
.training-page .table-wrapper {
  border: 1px solid rgba(100, 116, 139, 0.12) !important;
  border-radius: 12px !important;
  overflow: hidden;
}

.training-page table {
  width: 100%;
  border-collapse: collapse;
}

.training-page table th,
.training-page table td {
  padding: 0.75rem 0.9rem !important;
  border-bottom: 1px solid rgba(100, 116, 139, 0.12) !important;
}

.training-page table th {
  background: color-mix(in srgb, var(--accent) 10%, transparent) !important;
  text-align: left;
}

.training-page table tr:last-child td {
  border-bottom: none;
}

/* Align auth form and hint presentation */
.training-page #authView .panel {
  min-height: 100%;
}

.training-page .hint {
  color: var(--muted);
}

/* Training page buttons inherit global styles with slight rounding tweaks */
.training-page button,
.training-page .btn,
.training-page .cta-button {
  border-radius: 12px;
}

/* Discreet ad slot at top of training area */
.training-page .ad-slot.small {
  margin-top: 1.25rem;
  border: 2px dashed rgba(100, 116, 139, 0.35);
  background: var(--card);
}

/* Responsive tweaks for training layout */
@media (max-width: 800px) {
  .trainer-card {
    padding: 1.1rem;
    border-radius: 18px;
  }

  .nav-buttons {
    overflow-x: auto;
    padding-bottom: 0.3rem;
  }

  .nav-buttons .nav-btn {
    white-space: nowrap;
  }
}
@media (max-width: 800px) {
  .nav-toggle {
    display: inline-flex;
  }

  .site-nav {
    position: absolute;
    top: 70px;
    right: 1.25rem;
    flex-direction: column;
    align-items: flex-start;
    background: #fff;
    padding: 0.75rem;
    border-radius: 12px;
    box-shadow: 0 12px 30px rgba(15, 23, 42, 0.16);
    min-width: 220px;
    display: none;
  }

  .site-nav.is-open {
    display: flex;
  }

  .hero {
    padding: 1.4rem;
  }

  .site-shell {
    padding: 0 1rem 2rem;
  }
}