/* ============================================================
   LAYOUT — Container, Grid, Section Structure
   Sponsorship Intelligence Tool
   ============================================================ */

/* ---------- Page wrapper ---------- */
.page-wrapper {
  min-height: 100vh;           /* Full viewport height */
  display: flex;
  flex-direction: column;
}

/* ---------- Top navigation bar ---------- */
.topbar {
  position: sticky;            /* Sticks to top while scrolling */
  top: 0;
  z-index: var(--z-sticky);
  background: var(--bg-secondary);
  border-bottom: 1px solid var(--border-color);
  padding: 0 var(--space-6);
  height: 52px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  transition: background-color var(--transition-base), border-color var(--transition-base);
}

.topbar__brand {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--text-primary);
  text-decoration: none;
  letter-spacing: -0.01em;
}

.topbar__brand-icon {
  width: 24px;
  height: 24px;
  background: var(--accent-primary);
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  color: white;
  font-size: 0.75rem;
  font-weight: 700;
  flex-shrink: 0;
}

.topbar__controls {
  display: flex;
  align-items: center;
  gap: var(--space-3);
}

/* ---------- Main content area ---------- */
.main {
  flex: 1;                     /* Grows to fill remaining height */
  width: 100%;
  max-width: var(--max-width);
  margin: 0 auto;
  padding: var(--space-8) var(--space-6);
}

/* ---------- Input section ---------- */
.input-section {
  /* Full viewport height minus topbar, centered content */
  min-height: calc(100vh - 52px);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: var(--space-16) 0;
}

.input-section__inner {
  width: 100%;
  max-width: 560px;            /* Constrain form width for readability */
}

.input-section__eyebrow {
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--accent-primary);
  margin-bottom: var(--space-3);
}

.input-section__headline {
  margin-bottom: var(--space-2);
}

.input-section__description {
  color: var(--text-secondary);
  font-size: 0.9375rem;
  margin-bottom: var(--space-8);
  line-height: 1.6;
}

/* ---------- Results section ---------- */
.results-section {
  display: none;               /* Hidden until analysis completes */
  opacity: 0;
  transition: opacity var(--transition-slow);
  margin-top: var(--space-12);
}

/* When results are visible */
.results-section.results-section--visible {
  display: block;
}

/* When results are fully loaded (faded in) */
.results-section.results-section--loaded {
  opacity: 1;
}

/* When re-running: fade existing results to 40% */
.results-section.results-section--rerunning {
  opacity: 0.4;
  pointer-events: none;        /* Block interaction during reload */
  transition: opacity 200ms ease;
}

/* ---------- Results two-column grid ---------- */
.results-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;   /* Two equal columns */
  gap: var(--space-6);
  margin-top: var(--space-6);
}

/* FitScoreDashboard spans full width */
.results-grid__score-dashboard {
  grid-column: 1 / -1;        /* Full width row */
}

/* AnalysisSummary in left column */
.results-grid__analysis {
  grid-column: 1 / 2;
}

/* ComparablesTable in right column */
.results-grid__comparables {
  grid-column: 2 / 3;
}

/* ---------- Section headings within results ---------- */
.section-heading {
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--text-muted);
  margin-bottom: var(--space-3);
}

/* ---------- Methodology drawer (footer) ---------- */
.methodology-drawer {
  margin-top: var(--space-12);
  border-top: 1px solid var(--border-color);
}

.methodology-drawer__trigger {
  width: 100%;
  padding: var(--space-4) 0;
  background: none;
  border: none;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: space-between;
  font-size: 0.875rem;
  font-weight: 500;
  color: var(--text-secondary);
  transition: color var(--transition-fast);
}

.methodology-drawer__trigger:hover {
  color: var(--text-primary);
}

.methodology-drawer__trigger-icon {
  font-size: 0.75rem;
  transition: transform var(--transition-base);
  flex-shrink: 0;
}

/* Rotate icon when drawer is open */
.methodology-drawer.methodology-drawer--open .methodology-drawer__trigger-icon {
  transform: rotate(180deg);
}

.methodology-drawer__content {
  display: none;               /* Hidden by default */
  padding-bottom: var(--space-8);
}

.methodology-drawer.methodology-drawer--open .methodology-drawer__content {
  display: block;
}

.methodology-drawer__grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
  gap: var(--space-4);
  margin-top: var(--space-4);
}

/* ---------- Export bar (sticky bottom) ---------- */
.export-bar {
  position: fixed;             /* Always visible at viewport bottom */
  bottom: 0;
  left: 0;
  right: 0;
  z-index: var(--z-sticky);
  height: var(--export-bar-height);

  /* Frosted glass effect */
  background: var(--bg-frosted);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);

  border-top: 1px solid var(--border-color);
  padding: 0 var(--space-6);

  display: none;               /* Hidden until results load */
  align-items: center;
  justify-content: flex-end;
  gap: var(--space-3);

  transition: background-color var(--transition-base);
}

/* Visible after results load */
.export-bar.export-bar--visible {
  display: flex;
}

/* ---------- Responsive: tablet (< 900px) ---------- */
@media (max-width: 900px) {
  /* Stack results columns */
  .results-grid {
    grid-template-columns: 1fr;
  }

  .results-grid__analysis,
  .results-grid__comparables {
    grid-column: 1 / -1;
  }
}

/* ---------- Responsive: mobile (< 600px) ---------- */
@media (max-width: 600px) {
  .main {
    padding: var(--space-6) var(--space-4);
  }

  .topbar {
    padding: 0 var(--space-4);
  }

  .input-section {
    min-height: auto;
    padding: var(--space-8) 0;
    justify-content: flex-start;
  }

  h1 { font-size: 1.5rem; }
  h2 { font-size: 1.25rem; }

  .methodology-drawer__grid {
    grid-template-columns: 1fr;
  }

  .export-bar {
    justify-content: center;
    padding: 0 var(--space-4);
  }
}