/* ==========================================================================
   RESET & BASE
   ========================================================================== */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

html { scroll-behavior: smooth; scroll-padding-top: 20px; }

body {
  font-family: var(--font);
  font-size: 0.95rem;
  line-height: 1.7;
  background: var(--bg);
  color: var(--text);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  min-height: 100vh;
}

/* ==========================================================================
   LAYOUT: Sidebar + Main
   ========================================================================== */
.layout {
  display: flex;
  min-height: 100vh;
}

/* --- Sidebar --- */
.sidebar {
  position: fixed;
  top: 0; left: 0;
  width: var(--sidebar-w);
  height: 100vh;
  background: var(--bg-nav);
  border-right: 1px solid var(--border);
  overflow-y: auto;
  z-index: 200;
  padding: 12px 0 80px;
  transition: transform 0.3s ease;
  display: flex;
  flex-direction: column;
}
.sidebar-title {
  font-size: 0.7rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--text-muted);
  padding: 10px 16px 4px;
  margin-top: 4px;
}
.sidebar a {
  display: block;
  padding: 7px 16px 7px 24px;
  color: var(--text-secondary);
  text-decoration: none;
  font-size: 0.82rem;
  border-left: 3px solid transparent;
  transition: all var(--transition);
}
.sidebar a:hover, .sidebar a.active {
  color: var(--accent);
  background: rgba(78,205,196,0.06);
  border-left-color: var(--accent);
}
.sidebar a.sub { padding-left: 38px; font-size: 0.78rem; }

/* Sidebar brand */
.sidebar-brand {
  padding: 8px 16px 10px;
  font-weight: 700;
  color: var(--accent);
  font-size: 0.92rem;
  border-bottom: 1px solid var(--border);
  margin-bottom: 4px;
}

/* Sidebar controls section */
.sidebar-controls {
  padding: 8px 14px;
  border-bottom: 1px solid var(--border);
  display: flex;
  flex-direction: column;
  gap: 8px;
}

/* Sidebar phase nav */
.sidebar-nav {
  flex: 1;
  overflow-y: auto;
  padding-bottom: 8px;
}

/* Sidebar toggle for mobile */
.sidebar-toggle {
  display: none;
  position: fixed;
  top: 12px; left: 12px;
  z-index: 300;
  width: 52px; height: 52px;
  border-radius: 50%;
  background: var(--accent);
  color: var(--bg);
  border: none;
  font-size: 1.3rem;
  cursor: pointer;
  box-shadow: 0 4px 12px rgba(0,0,0,0.3);
  -webkit-tap-highlight-color: transparent;
  touch-action: manipulation;
}

/* Sidebar overlay for mobile */
.sidebar-overlay {
  display: none;
  position: fixed;
  top: 0; left: 0;
  width: 100%; height: 100%;
  background: rgba(0,0,0,0.5);
  z-index: 199;
}
.sidebar-overlay.show { display: block; }

/* --- Main Content --- */
.main-content {
  margin-left: var(--sidebar-w);
  flex: 1;
  max-width: 920px;
  padding: 0 24px 60px 24px;
}

/* Disclaimer inside sidebar */
.sidebar-disclaimer {
  padding: 8px 14px;
  font-size: 0.72rem;
  line-height: 1.4;
  color: var(--clr-objection);
  background: var(--clr-objection-bg);
  border-bottom: 1px solid rgba(252,165,165,0.3);
}

/* Phase progress inside sidebar */
.sidebar .phase-progress {
  display: flex;
  flex-direction: column;
  gap: 2px;
  padding: 8px 14px;
  border-bottom: 1px solid var(--border);
}
.sidebar .phase-progress button {
  text-align: left;
}