/* ==========================================================================
   Meridian base — the framed gutter, the parchment canvas, typography
   ========================================================================== */

body {
  margin: 0;
  min-height: 100vh;
  background-color: var(--meridian-gutter);
  font-family: var(--font-ui);
  color: var(--meridian-text-main);
  -webkit-font-smoothing: antialiased;
  transition: background-color 0.4s ease;
}

/* The parchment canvas floating inside the dark gutter */
.app-frame {
  display: flex;
  justify-content: center;
  align-items: flex-start;
  min-height: 100vh;
  padding: clamp(0.375rem, 1.25vw, 1.25rem);
}

.app-canvas {
  width: 100%;
  min-height: calc(100vh - clamp(0.75rem, 2.5vw, 2.5rem));
  background-color: var(--meridian-bg);
  border-radius: 6px;
  border: 1px solid rgba(0, 0, 0, 0.04);
  box-shadow:
    0 30px 70px rgba(0, 0, 0, 0.4),
    0 8px 24px rgba(27, 48, 34, 0.12);
  overflow: hidden;
  display: flex;
  flex-direction: column;
  transition: background-color 0.4s ease, border-color 0.4s ease;
}

.app-main {
  flex: 1;
  padding: 1.5rem 2rem 2.5rem;
}

/* --- Top navigation ----------------------------------------------------- */
.meridian-nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  padding: 1.1rem 2rem;
  border-bottom: 1px solid var(--meridian-divider);
}

.meridian-brand {
  display: flex;
  align-items: baseline;
  gap: 0.55rem;
  text-decoration: none;
  color: var(--meridian-text-main);
}

/* Compass mark inherits currentColor; sized to sit with the wordmark. */
.brand-mark {
  flex: none;
  width: 1.7rem;
  height: 1.7rem;
}

.meridian-brand .brand-mark {
  align-self: center;
  color: var(--meridian-accent);
}

.meridian-brand .brand-name {
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 1.55rem;
  letter-spacing: -0.01em;
  color: var(--meridian-accent);
}

.meridian-brand .brand-tagline {
  font-family: var(--font-display);
  font-style: italic;
  font-size: 0.95rem;
  color: var(--meridian-text-muted);
}

.meridian-nav .nav-links {
  display: flex;
  align-items: center;
  gap: 1.4rem;
}

.meridian-nav .nav-links a {
  font-size: 0.92rem;
  font-weight: 500;
  color: var(--meridian-text-muted);
  text-decoration: none;
  padding-bottom: 2px;
  border-bottom: 2px solid transparent;
  transition: var(--transition-smooth);
}

.meridian-nav .nav-links a:hover {
  color: var(--meridian-accent);
}

.meridian-nav .nav-links a.is-active {
  color: var(--meridian-accent);
  border-bottom-color: var(--meridian-accent);
}

.meridian-nav .nav-logout-form {
  display: inline-flex;
}

/* Styled like the nav links, but it's a POST so it stays a button. */
.meridian-nav .nav-logout {
  font-size: 0.92rem;
  font-weight: 500;
  font-family: inherit;
  color: var(--meridian-text-muted);
  background: none;
  border: none;
  padding: 0 0 2px;
  cursor: pointer;
  transition: var(--transition-smooth);
}

.meridian-nav .nav-logout:hover {
  color: var(--meridian-accent);
}

/* --- Typography --------------------------------------------------------- */
h1, h2, h3, .metric-display {
  font-family: var(--font-display);
  font-weight: 600;
  letter-spacing: -0.01em;
}

.tagline {
  font-family: var(--font-display);
  font-style: italic;
  color: var(--meridian-text-muted);
  font-size: 1.15rem;
}

.muted {
  color: var(--meridian-text-muted);
}

.metric-display {
  font-size: 2.4rem;
  line-height: 1;
}

/* --- Panels / cards ------------------------------------------------------ */
.panel-card {
  background: var(--meridian-bg);
  border: 1px solid var(--meridian-divider);
  border-radius: 6px;
  padding: 1.25rem 1.4rem;
}

.divider {
  border: 0;
  border-bottom: 1px solid var(--meridian-divider);
  margin: 0.75rem 0;
}

/* Bulma fine-tuning for the parchment feel */
.button.is-primary {
  font-weight: 500;
}

.label {
  color: var(--meridian-text-main);
  font-weight: 500;
}

.input, .select select, .textarea {
  background-color: var(--meridian-bg);
  border-color: var(--meridian-divider);
  color: var(--meridian-text-main);
}

.input:focus, .select select:focus, .textarea:focus {
  border-color: var(--meridian-accent);
  box-shadow: 0 0 0 0.125em rgba(27, 48, 34, 0.15);
}

/* --- Auth / narrow centered pages ---------------------------------------- */
.narrow-page {
  max-width: 430px;
  margin: 3rem auto;
}

.narrow-page h1 {
  margin-bottom: 0.25rem;
}

.narrow-page .tagline {
  margin-bottom: 1.75rem;
}

@media screen and (max-width: 768px) {
  .app-main {
    padding: 1rem 1rem 2rem;
  }

  .meridian-nav {
    padding: 0.9rem 1rem;
    flex-wrap: wrap;
  }
}