/* ─────────────────────────────────────────────
   Design Tokens
───────────────────────────────────────────── */
:root {
  --blue-900: #0f2255;
  --blue-800: #1a3172;
  --blue-700: #1d4ed8;
  --blue-600: #2563eb;
  --blue-500: #3b82f6;
  --blue-100: #dbeafe;
  --blue-50:  #eff6ff;

  --teal-500: #0ea5e9;
  --teal-400: #38bdf8;

  --green-700: #047857;
  --green-600: #059669;
  --green-100: #d1fae5;
  --green-50:  #ecfdf5;
  --green-200: #a7f3d0;

  --amber-700: #b45309;
  --amber-600: #d97706;
  --amber-100: #fef3c7;
  --amber-50:  #fffbeb;
  --amber-200: #fde68a;

  --red-600:   #dc2626;
  --red-300:   #fca5a5;
  --red-100:   #fee2e2;

  --slate-900: #0f172a;
  --slate-800: #1e293b;
  --slate-600: #475569;
  --slate-500: #64748b;
  --slate-400: #94a3b8;
  --slate-200: #e2e8f0;
  --slate-100: #f1f5f9;
  --slate-50:  #f8fafc;

  --white: #ffffff;

  --font: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;

  --radius-sm: 6px;
  --radius:    10px;
  --radius-lg: 16px;
  --radius-xl: 24px;

  --shadow-sm: 0 1px 2px rgba(15,34,85,.06), 0 1px 3px rgba(15,34,85,.08);
  --shadow:    0 2px 8px rgba(15,34,85,.08), 0 1px 3px rgba(15,34,85,.06);
  --shadow-md: 0 4px 16px rgba(15,34,85,.10), 0 2px 6px rgba(15,34,85,.06);
  --shadow-lg: 0 12px 32px rgba(15,34,85,.14), 0 4px 10px rgba(15,34,85,.08);

  --transition: 220ms cubic-bezier(.4,0,.2,1);
}

/* ─────────────────────────────────────────────
   Reset & Base
───────────────────────────────────────────── */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

html { font-size: 16px; scroll-behavior: smooth; }

body {
  font-family: var(--font);
  background: var(--slate-50);
  color: var(--slate-800);
  min-height: 100vh;
  -webkit-font-smoothing: antialiased;
}

#app {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

/* ─────────────────────────────────────────────
   Animations
───────────────────────────────────────────── */
@keyframes slideInRight {
  from { transform: translateX(48px); opacity: 0; }
  to   { transform: translateX(0);    opacity: 1; }
}
@keyframes slideInLeft {
  from { transform: translateX(-48px); opacity: 0; }
  to   { transform: translateX(0);     opacity: 1; }
}
@keyframes fadeIn {
  from { opacity: 0; transform: translateY(8px); }
  to   { opacity: 1; transform: translateY(0);   }
}
@keyframes spin {
  to { transform: rotate(360deg); }
}
@keyframes slideDown {
  from { transform: translateY(-10px); opacity: 0; }
  to   { transform: translateY(0);     opacity: 1; }
}

.anim-forward { animation: slideInRight .3s ease both; }
.anim-back    { animation: slideInLeft  .3s ease both; }
.anim-fade    { animation: fadeIn       .3s ease both; }

/* ─────────────────────────────────────────────
   Layout
───────────────────────────────────────────── */
.container {
  width: 100%;
  max-width: 820px;
  margin: 0 auto;
  padding: 0 20px;
}

/* ─────────────────────────────────────────────
   App Header (step screens)
───────────────────────────────────────────── */
.app-header {
  background: linear-gradient(135deg, var(--blue-900) 0%, var(--blue-700) 100%);
  padding: 18px 0 0;
  position: sticky;
  top: 0;
  z-index: 10;
  box-shadow: 0 2px 12px rgba(15,34,85,.25);
}
.app-header-inner {
  display: flex;
  align-items: center;
  gap: 16px;
  padding: 0 20px 16px;
  max-width: 820px;
  margin: 0 auto;
}
.app-logo {
  font-size: .8rem;
  font-weight: 700;
  color: rgba(255,255,255,.65);
  letter-spacing: .08em;
  text-transform: uppercase;
  flex-shrink: 0;
  cursor: pointer;
  transition: color var(--transition);
}
.app-logo:hover { color: #fff; }
.header-title {
  flex: 1;
  font-size: .95rem;
  font-weight: 600;
  color: #fff;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

/* ─────────────────────────────────────────────
   Progress Indicator
───────────────────────────────────────────── */
.progress-bar-track {
  background: rgba(255,255,255,.18);
  height: 3px;
  width: 100%;
  position: relative;
  overflow: hidden;
}
.progress-bar-fill {
  height: 100%;
  background: var(--teal-400);
  transition: width .5s cubic-bezier(.4,0,.2,1);
}

.step-dots {
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 10px 20px 14px;
  max-width: 820px;
  margin: 0 auto;
  gap: 0;
}
.step-dot-wrap {
  display: flex;
  align-items: center;
  flex: 1;
  min-width: 0;
}
.step-dot-wrap:last-child { flex: 0; }
.step-connector {
  flex: 1;
  height: 2px;
  background: rgba(255,255,255,.2);
  transition: background .4s;
}
.step-connector.done { background: var(--teal-400); }

.step-dot {
  width: 28px;
  height: 28px;
  border-radius: 50%;
  border: 2px solid rgba(255,255,255,.35);
  background: transparent;
  color: rgba(255,255,255,.6);
  font-size: .7rem;
  font-weight: 700;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  transition: all .3s;
  cursor: default;
  position: relative;
}
.step-dot.done {
  background: var(--teal-400);
  border-color: var(--teal-400);
  color: #fff;
}
.step-dot.active {
  background: #fff;
  border-color: #fff;
  color: var(--blue-800);
  box-shadow: 0 0 0 4px rgba(255,255,255,.2);
}
.step-dot-label {
  display: none;
}

/* ─────────────────────────────────────────────
   Home / Hero
───────────────────────────────────────────── */
.home-hero {
  background: linear-gradient(135deg, var(--blue-900) 0%, var(--blue-700) 100%);
  padding: 64px 20px 72px;
  text-align: center;
  position: relative;
  overflow: hidden;
}
.home-hero::before {
  content: '';
  position: absolute;
  inset: 0;
  background: url("data:image/svg+xml,%3Csvg width='60' height='60' viewBox='0 0 60 60' xmlns='http://www.w3.org/2000/svg'%3E%3Cg fill='none' fill-rule='evenodd'%3E%3Cg fill='%23ffffff' fill-opacity='0.03'%3E%3Cpath d='M36 34v-4h-2v4h-4v2h4v4h2v-4h4v-2h-4zm0-30V0h-2v4h-4v2h4v4h2V6h4V4h-4zM6 34v-4H4v4H0v2h4v4h2v-4h4v-2H6zM6 4V0H4v4H0v2h4v4h2V6h4V4H6z'/%3E%3C/g%3E%3C/g%3E%3C/svg%3E");
  pointer-events: none;
}
.home-hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  background: rgba(255,255,255,.12);
  border: 1px solid rgba(255,255,255,.2);
  color: var(--teal-400);
  font-size: .75rem;
  font-weight: 600;
  letter-spacing: .06em;
  text-transform: uppercase;
  padding: 5px 14px;
  border-radius: 999px;
  margin-bottom: 20px;
}
.home-hero h1 {
  font-size: clamp(2rem, 5vw, 3rem);
  font-weight: 800;
  color: #fff;
  line-height: 1.15;
  margin-bottom: 16px;
  letter-spacing: -.02em;
}
.home-hero p {
  font-size: 1.1rem;
  color: rgba(255,255,255,.72);
  max-width: 480px;
  margin: 0 auto 32px;
  line-height: 1.6;
}
.btn-hero {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: #fff;
  color: var(--blue-800);
  font-size: 1rem;
  font-weight: 700;
  padding: 14px 32px;
  border-radius: var(--radius-lg);
  border: none;
  cursor: pointer;
  box-shadow: 0 4px 20px rgba(0,0,0,.2);
  transition: all var(--transition);
  text-decoration: none;
}
.btn-hero:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 28px rgba(0,0,0,.25);
  background: var(--blue-50);
}
.btn-hero:active { transform: translateY(0); }

/* ─────────────────────────────────────────────
   Home Content
───────────────────────────────────────────── */
.home-content {
  padding: 40px 20px 60px;
  max-width: 820px;
  margin: 0 auto;
}
.home-section { margin-bottom: 40px; }
.home-section-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 16px;
}
.home-section-header h2 {
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--slate-800);
  display: flex;
  align-items: center;
  gap: 8px;
}
.section-count {
  background: var(--slate-200);
  color: var(--slate-600);
  font-size: .72rem;
  font-weight: 700;
  padding: 2px 8px;
  border-radius: 999px;
}

/* ─────────────────────────────────────────────
   Communication Cards
───────────────────────────────────────────── */
.comm-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 16px;
}
.comm-card {
  background: var(--white);
  border-radius: var(--radius-lg);
  border: 1px solid var(--slate-200);
  padding: 20px;
  cursor: pointer;
  transition: all var(--transition);
  display: flex;
  flex-direction: column;
  gap: 12px;
  box-shadow: var(--shadow-sm);
}
.comm-card:hover {
  border-color: var(--blue-500);
  box-shadow: var(--shadow-md);
  transform: translateY(-2px);
}
.comm-card-top {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 8px;
}
.comm-card-title {
  font-size: 1rem;
  font-weight: 700;
  color: var(--slate-900);
  line-height: 1.35;
  flex: 1;
}
.comm-card-step {
  font-size: .78rem;
  color: var(--slate-500);
  font-weight: 500;
}
.comm-card-progress {
  height: 4px;
  background: var(--slate-100);
  border-radius: 2px;
  overflow: hidden;
}
.comm-card-progress-fill {
  height: 100%;
  background: linear-gradient(90deg, var(--blue-600), var(--teal-500));
  border-radius: 2px;
  transition: width .4s;
}
.comm-card-footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-top: 2px;
}
.comm-card-date {
  font-size: .75rem;
  color: var(--slate-400);
}
.btn-delete-card {
  background: none;
  border: none;
  color: var(--slate-400);
  font-size: .75rem;
  cursor: pointer;
  padding: 2px 6px;
  border-radius: var(--radius-sm);
  transition: all var(--transition);
}
.btn-delete-card:hover { color: var(--red-600); background: var(--red-100); }

/* ─────────────────────────────────────────────
   Status Badges
───────────────────────────────────────────── */
.badge {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  font-size: .7rem;
  font-weight: 700;
  letter-spacing: .04em;
  text-transform: uppercase;
  padding: 3px 10px;
  border-radius: 999px;
  white-space: nowrap;
}
.badge-in-progress  { background: var(--blue-100);  color: var(--blue-700); }
.badge-under-review { background: var(--amber-100); color: var(--amber-600); }
.badge-complete     { background: var(--green-100); color: var(--green-600); }

/* ─────────────────────────────────────────────
   Empty State
───────────────────────────────────────────── */
.empty-state {
  text-align: center;
  padding: 60px 20px;
}
.empty-icon {
  font-size: 3rem;
  margin-bottom: 16px;
  opacity: .5;
}
.empty-state h3 {
  font-size: 1.15rem;
  font-weight: 700;
  color: var(--slate-700);
  margin-bottom: 6px;
}
.empty-state p {
  color: var(--slate-500);
  font-size: .9rem;
}

/* ─────────────────────────────────────────────
   Step Screen Layout
───────────────────────────────────────────── */
.step-screen {
  flex: 1;
  display: flex;
  flex-direction: column;
}
.step-body {
  flex: 1;
  padding: 32px 20px 24px;
  max-width: 820px;
  width: 100%;
  margin: 0 auto;
}

/* ─────────────────────────────────────────────
   Step Card
───────────────────────────────────────────── */
.step-card {
  background: var(--white);
  border-radius: var(--radius-xl);
  border: 1px solid var(--slate-200);
  box-shadow: var(--shadow-md);
  overflow: hidden;
}
.step-card-header {
  padding: 28px 32px 20px;
  border-bottom: 1px solid var(--slate-100);
}
.step-eyebrow {
  font-size: .72rem;
  font-weight: 700;
  letter-spacing: .1em;
  text-transform: uppercase;
  color: var(--blue-600);
  margin-bottom: 8px;
}
.step-card-header h2 {
  font-size: 1.55rem;
  font-weight: 800;
  color: var(--slate-900);
  letter-spacing: -.02em;
  margin-bottom: 6px;
}
.step-card-header p {
  font-size: .92rem;
  color: var(--slate-500);
  line-height: 1.55;
}
.step-card-body {
  padding: 28px 32px;
}

/* ─────────────────────────────────────────────
   Form Elements
───────────────────────────────────────────── */
.form-group {
  margin-bottom: 22px;
}
.form-group:last-child { margin-bottom: 0; }

label, .label {
  display: block;
  font-size: .83rem;
  font-weight: 600;
  color: var(--slate-700);
  margin-bottom: 7px;
}
.label-hint {
  font-size: .78rem;
  font-weight: 400;
  color: var(--slate-400);
  margin-left: 6px;
}

input[type="text"],
input[type="date"],
input[type="number"],
textarea,
select {
  width: 100%;
  padding: 11px 14px;
  font-size: .92rem;
  font-family: var(--font);
  color: var(--slate-900);
  background: var(--white);
  border: 1.5px solid var(--slate-200);
  border-radius: var(--radius);
  outline: none;
  transition: border-color var(--transition), box-shadow var(--transition);
  resize: vertical;
}
input:focus, textarea:focus, select:focus {
  border-color: var(--blue-500);
  box-shadow: 0 0 0 3px rgba(59,130,246,.12);
}
textarea { min-height: 100px; line-height: 1.55; }
.textarea-lg { min-height: 160px; }

.form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
}

/* ─────────────────────────────────────────────
   Buttons
───────────────────────────────────────────── */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  font-family: var(--font);
  font-size: .9rem;
  font-weight: 600;
  padding: 11px 24px;
  border-radius: var(--radius);
  border: none;
  cursor: pointer;
  transition: all var(--transition);
  text-decoration: none;
  white-space: nowrap;
}
.btn:disabled { opacity: .55; cursor: not-allowed; pointer-events: none; }

.btn-primary {
  background: linear-gradient(135deg, var(--blue-700), var(--blue-600));
  color: #fff;
  box-shadow: 0 2px 8px rgba(37,99,235,.3);
}
.btn-primary:hover {
  background: linear-gradient(135deg, var(--blue-800), var(--blue-700));
  box-shadow: 0 4px 14px rgba(37,99,235,.4);
  transform: translateY(-1px);
}

.btn-secondary {
  background: var(--white);
  color: var(--slate-700);
  border: 1.5px solid var(--slate-200);
  box-shadow: var(--shadow-sm);
}
.btn-secondary:hover {
  background: var(--slate-50);
  border-color: var(--slate-300);
  transform: translateY(-1px);
}

.btn-success {
  background: linear-gradient(135deg, #059669, #10b981);
  color: #fff;
  box-shadow: 0 2px 8px rgba(5,150,105,.3);
}
.btn-success:hover {
  box-shadow: 0 4px 14px rgba(5,150,105,.4);
  transform: translateY(-1px);
}

.btn-ghost {
  background: transparent;
  color: var(--blue-600);
  border: 1.5px solid var(--blue-200);
}
.btn-ghost:hover {
  background: var(--blue-50);
  border-color: var(--blue-400);
}

.btn-danger-ghost {
  background: transparent;
  color: var(--red-600);
  border: 1.5px solid var(--red-100);
}
.btn-danger-ghost:hover { background: var(--red-100); }

.btn-sm { padding: 7px 14px; font-size: .8rem; }
.btn-lg { padding: 14px 32px; font-size: 1rem; }
.btn-icon { padding: 8px; border-radius: var(--radius-sm); }

/* ─────────────────────────────────────────────
   Step Navigation
───────────────────────────────────────────── */
.step-nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 20px 0 32px;
  max-width: 820px;
  margin: 0 auto;
  padding-left: 20px;
  padding-right: 20px;
}
.step-nav-right {
  display: flex;
  gap: 10px;
  align-items: center;
}

/* ─────────────────────────────────────────────
   Argument Cards
───────────────────────────────────────────── */
/* ─────────────────────────────────────────────
   Argument Builder — Big Idea / Supporting Args
───────────────────────────────────────────── */
.big-idea-list { display: flex; flex-direction: column; gap: 20px; }

.big-idea-card {
  background: var(--white);
  border: 2px solid var(--blue-200);
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-sm);
  transition: border-color var(--transition), box-shadow var(--transition);
}
.big-idea-card:focus-within {
  border-color: var(--blue-500);
  box-shadow: var(--shadow);
}

.big-idea-card-header {
  background: linear-gradient(135deg, var(--blue-50) 0%, #f0f6ff 100%);
  border-bottom: 1.5px solid var(--blue-100);
  padding: 12px 14px;
  display: flex;
  flex-direction: column;
  gap: 6px;
}
.bi-header-top {
  display: flex;
  align-items: center;
  gap: 10px;
}
.big-idea-badge {
  font-size: .68rem;
  font-weight: 800;
  letter-spacing: .08em;
  text-transform: uppercase;
  color: var(--white);
  background: var(--blue-700);
  padding: 3px 10px;
  border-radius: 999px;
  flex-shrink: 0;
  white-space: nowrap;
}
.big-idea-input {
  flex: 1;
  min-width: 0;
  font-size: .95rem;
  font-weight: 600;
  color: var(--slate-900);
  background: transparent;
  border: none;
  outline: none;
  font-family: var(--font);
}
.big-idea-input::placeholder { font-weight: 400; color: var(--slate-400); }

.big-idea-desc {
  width: 100%;
  min-height: 60px;
  font-size: .875rem;
  color: var(--slate-700);
  border: 1px solid var(--slate-200);
  border-radius: var(--radius-sm);
  padding: 8px 10px;
  resize: vertical;
  background: var(--slate-50);
  font-family: var(--font);
  box-sizing: border-box;
  transition: border-color .15s;
}
.big-idea-desc:focus {
  outline: none;
  border-color: var(--blue-400);
  background: #fff;
}
.big-idea-desc::placeholder { color: var(--slate-400); }

.summary-arg-desc {
  font-size: .82rem;
  color: var(--slate-500);
  margin: 2px 0 6px 0;
  font-style: italic;
}

.big-idea-actions {
  display: flex;
  align-items: center;
  gap: 6px;
  flex-shrink: 0;
}
.collapse-btn {
  background: none;
  border: 1px solid var(--slate-200);
  color: var(--slate-500);
  border-radius: var(--radius-sm);
  width: 26px;
  height: 26px;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: .65rem;
  transition: all var(--transition);
  line-height: 1;
}
.collapse-btn:hover { background: var(--slate-100); color: var(--slate-700); }
.collapse-btn.closed { transform: rotate(-90deg); }

.big-idea-collapsed-summary {
  padding: 9px 16px;
  color: var(--slate-400);
  font-size: .8rem;
  font-style: italic;
}

.big-idea-body { padding: 16px 16px 12px; }

/* Supporting arguments nested track */
.supporting-args-track {
  display: flex;
  gap: 0;
  margin-bottom: 10px;
}
.supporting-args-line {
  width: 2px;
  background: var(--blue-200);
  border-radius: 1px;
  margin: 2px 14px 2px 8px;
  flex-shrink: 0;
}
.supporting-args-list {
  flex: 1;
  display: flex;
  flex-direction: column;
  gap: 10px;
  min-width: 0;
}

.supporting-arg-card {
  background: var(--slate-50);
  border: 1.5px solid var(--slate-200);
  border-radius: var(--radius);
  padding: 14px 14px 10px;
  transition: border-color var(--transition);
}
.supporting-arg-card:hover { border-color: var(--blue-200); }
.supporting-arg-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 10px;
}
.supporting-arg-label {
  font-size: .7rem;
  font-weight: 700;
  letter-spacing: .06em;
  text-transform: uppercase;
  color: var(--slate-400);
}
.supporting-arg-card .form-group { margin-bottom: 10px; }
.supporting-arg-card .form-group:last-child { margin-bottom: 0; }

.add-supporting-arg-btn {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  background: none;
  border: 1.5px dashed var(--blue-200);
  color: var(--blue-500);
  font-family: var(--font);
  font-size: .78rem;
  font-weight: 600;
  padding: 6px 12px;
  border-radius: var(--radius);
  cursor: pointer;
  transition: all var(--transition);
  margin-left: 24px;
}
.add-supporting-arg-btn:hover {
  background: var(--blue-50);
  border-color: var(--blue-400);
  color: var(--blue-700);
}

.add-big-idea-btn {
  width: 100%;
  padding: 13px;
  border: 2px dashed var(--slate-300);
  border-radius: var(--radius-lg);
  background: transparent;
  color: var(--slate-500);
  font-family: var(--font);
  font-size: .9rem;
  font-weight: 600;
  cursor: pointer;
  transition: all var(--transition);
  margin-top: 4px;
}
.add-big-idea-btn:hover {
  border-color: var(--blue-400);
  color: var(--blue-600);
  background: var(--blue-50);
}

/* ─────────────────────────────────────────────
   Draft Section
───────────────────────────────────────────── */
.draft-generate-box {
  background: linear-gradient(135deg, var(--blue-50), var(--slate-50));
  border: 1.5px solid var(--blue-100);
  border-radius: var(--radius-lg);
  padding: 24px;
  margin-bottom: 24px;
  text-align: center;
}
.draft-generate-box h3 {
  font-size: 1rem;
  font-weight: 700;
  color: var(--slate-800);
  margin-bottom: 6px;
}
.draft-generate-box p {
  font-size: .85rem;
  color: var(--slate-500);
  margin-bottom: 16px;
}
.draft-output {
  background: var(--white);
  border: 1.5px solid var(--slate-200);
  border-radius: var(--radius-lg);
  padding: 24px;
  margin-bottom: 16px;
}
.draft-output-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 14px;
  padding-bottom: 12px;
  border-bottom: 1px solid var(--slate-100);
}
.draft-output-header h3 {
  font-size: .85rem;
  font-weight: 700;
  color: var(--slate-700);
  letter-spacing: .04em;
  text-transform: uppercase;
}
.draft-text {
  font-size: .9rem;
  line-height: 1.75;
  color: var(--slate-800);
  white-space: pre-wrap;
}

/* AI Loading */
.ai-loading {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 12px;
  padding: 32px;
  color: var(--slate-500);
  font-size: .9rem;
}
.spinner {
  width: 28px;
  height: 28px;
  border: 3px solid var(--slate-200);
  border-top-color: var(--blue-600);
  border-radius: 50%;
  animation: spin .7s linear infinite;
}

/* ─────────────────────────────────────────────
   Peer Review Checklist
───────────────────────────────────────────── */
.checklist { display: flex; flex-direction: column; gap: 10px; }
.checklist-item {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  padding: 12px 16px;
  background: var(--white);
  border: 1.5px solid var(--slate-200);
  border-radius: var(--radius);
  cursor: pointer;
  transition: all var(--transition);
}
.checklist-item:hover { border-color: var(--blue-300); background: var(--blue-50); }
.checklist-item.checked {
  border-color: var(--green-600);
  background: var(--green-100);
}
.checklist-item input[type="checkbox"] { display: none; }
.checklist-box {
  width: 20px;
  height: 20px;
  border-radius: 5px;
  border: 2px solid var(--slate-300);
  background: #fff;
  flex-shrink: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all var(--transition);
  margin-top: 1px;
}
.checklist-item.checked .checklist-box {
  background: var(--green-600);
  border-color: var(--green-600);
}
.checklist-checkmark {
  color: #fff;
  font-size: .75rem;
  display: none;
}
.checklist-item.checked .checklist-checkmark { display: block; }
.checklist-label {
  font-size: .88rem;
  font-weight: 500;
  color: var(--slate-700);
  line-height: 1.4;
}
.checklist-item.checked .checklist-label { color: var(--green-600); }

/* Review toggle */
.review-toggle {
  display: flex;
  gap: 12px;
  margin-bottom: 20px;
}
.review-toggle-btn {
  flex: 1;
  padding: 14px 20px;
  border-radius: var(--radius-lg);
  border: 2px solid var(--slate-200);
  background: var(--white);
  font-family: var(--font);
  font-size: .9rem;
  font-weight: 600;
  color: var(--slate-600);
  cursor: pointer;
  transition: all var(--transition);
  text-align: center;
}
.review-toggle-btn.approved {
  border-color: var(--green-600);
  background: var(--green-100);
  color: var(--green-600);
}
.review-toggle-btn.revision {
  border-color: var(--amber-600);
  background: var(--amber-100);
  color: var(--amber-600);
}

/* ─────────────────────────────────────────────
   Practice Log
───────────────────────────────────────────── */
.practice-runs { display: flex; flex-direction: column; gap: 12px; margin-bottom: 16px; }
.practice-run-card {
  background: var(--white);
  border: 1.5px solid var(--slate-200);
  border-radius: var(--radius-lg);
  padding: 16px 20px;
  display: flex;
  gap: 16px;
  align-items: flex-start;
}
.practice-run-meta {
  flex-shrink: 0;
  min-width: 90px;
}
.practice-run-date {
  font-size: .78rem;
  font-weight: 600;
  color: var(--slate-600);
  margin-bottom: 6px;
}
.practice-run-notes {
  flex: 1;
  font-size: .88rem;
  color: var(--slate-600);
  line-height: 1.45;
}
.practice-add-form {
  background: var(--slate-50);
  border: 1.5px dashed var(--slate-300);
  border-radius: var(--radius-lg);
  padding: 20px;
}
.practice-add-form h4 {
  font-size: .85rem;
  font-weight: 700;
  color: var(--slate-700);
  margin-bottom: 14px;
}

/* ─────────────────────────────────────────────
   Star Rating
───────────────────────────────────────────── */
.star-rating {
  display: flex;
  gap: 4px;
  margin-top: 4px;
}
.star {
  font-size: 1.6rem;
  cursor: pointer;
  color: var(--slate-300);
  transition: color var(--transition), transform var(--transition);
  line-height: 1;
}
.star:hover, .star.lit { color: #f59e0b; }
.star:hover { transform: scale(1.15); }

/* ─────────────────────────────────────────────
   Final Feedback
───────────────────────────────────────────── */
.outcome-section {
  background: linear-gradient(135deg, #fef9ee, #fffbf2);
  border: 1.5px solid var(--amber-100);
  border-radius: var(--radius-lg);
  padding: 24px;
  margin-bottom: 24px;
  text-align: center;
}
.outcome-section h3 {
  font-size: 1rem;
  font-weight: 700;
  color: var(--slate-800);
  margin-bottom: 4px;
}
.outcome-section p {
  font-size: .85rem;
  color: var(--slate-500);
  margin-bottom: 14px;
}
.outcome-section .star-rating { justify-content: center; }

/* ─────────────────────────────────────────────
   Summary Review (Step 4 context)
───────────────────────────────────────────── */
.summary-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 12px;
  margin-bottom: 20px;
}
.summary-item {
  background: var(--slate-50);
  border: 1px solid var(--slate-200);
  border-radius: var(--radius);
  padding: 14px 16px;
}
.summary-item-label {
  font-size: .72rem;
  font-weight: 700;
  letter-spacing: .06em;
  text-transform: uppercase;
  color: var(--slate-400);
  margin-bottom: 4px;
}
.summary-item-value {
  font-size: .88rem;
  color: var(--slate-800);
  font-weight: 500;
  line-height: 1.4;
}
.summary-arguments { margin-bottom: 20px; }
.summary-arg-item {
  display: flex;
  align-items: baseline;
  gap: 4px;
  padding: 12px 16px;
  border-left: 3px solid var(--blue-500);
  background: var(--slate-50);
  border-radius: 0 var(--radius) var(--radius) 0;
  margin-bottom: 8px;
}
.summary-arg-point {
  font-size: .9rem;
  font-weight: 600;
  color: var(--slate-800);
  margin-bottom: 2px;
}
.summary-arg-sub {
  font-size: .8rem;
  color: var(--slate-500);
}
.summary-big-idea-section { margin-bottom: 12px; }
.summary-big-idea-label {
  font-size: .82rem;
  font-weight: 700;
  color: var(--blue-700);
  margin-bottom: 6px;
  padding: 4px 10px;
  background: var(--blue-50);
  border-radius: var(--radius-sm);
  display: inline-block;
}
.summary-big-idea-section .summary-arg-item { margin-left: 10px; }

/* ─────────────────────────────────────────────
   Modal
───────────────────────────────────────────── */
#modal-overlay {
  position: fixed;
  inset: 0;
  background: rgba(15,34,85,.5);
  backdrop-filter: blur(4px);
  z-index: 100;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 20px;
}
#modal-overlay.hidden { display: none; }

.modal {
  background: var(--white);
  border-radius: var(--radius-xl);
  box-shadow: var(--shadow-lg);
  width: 100%;
  max-width: 460px;
  animation: slideDown .25s ease both;
}
.modal-header {
  padding: 24px 28px 16px;
  border-bottom: 1px solid var(--slate-100);
}
.modal-header h3 {
  font-size: 1.15rem;
  font-weight: 800;
  color: var(--slate-900);
  margin-bottom: 4px;
}
.modal-header p {
  font-size: .85rem;
  color: var(--slate-500);
}
.modal-body { padding: 20px 28px; }
.modal-footer {
  padding: 16px 28px 24px;
  display: flex;
  gap: 10px;
  justify-content: flex-end;
}

/* ─────────────────────────────────────────────
   WBS Modal (Argument Structure diagram)
───────────────────────────────────────────── */
.modal-wbs {
  background: var(--white);
  border-radius: var(--radius-xl);
  box-shadow: var(--shadow-lg);
  width: 90vw;
  height: 90vh;
  display: flex;
  flex-direction: column;
  animation: slideDown .25s ease both;
  overflow: hidden;
}
#modal-overlay.overlay-wbs {
  align-items: center;
  overflow: hidden;
  padding: 0;
}
.modal-wbs-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 16px 20px;
  border-bottom: 1px solid var(--slate-100);
  flex-shrink: 0;
}
.modal-wbs-title {
  font-size: 1rem;
  font-weight: 700;
  color: var(--slate-900);
}
.modal-wbs-actions {
  display: flex;
  align-items: center;
  gap: 8px;
}
.modal-close-btn {
  background: none;
  border: none;
  cursor: pointer;
  font-size: 1rem;
  color: var(--slate-400);
  padding: 4px 8px;
  border-radius: var(--radius-sm);
  line-height: 1;
  transition: color .15s, background .15s;
}
.modal-close-btn:hover { color: var(--slate-700); background: var(--slate-100); }
.modal-wbs-body {
  overflow: auto;
  padding: 24px;
  flex: 1;
  min-height: 0;
}
.modal-wbs-body svg {
  display: block;
  width: 100%;
  height: auto;
}
.modal-wbs-loading {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 12px;
  min-height: 180px;
  color: var(--slate-500);
  font-size: .9rem;
}
.wbs-loading-spinner {
  display: inline-block;
  width: 22px;
  height: 22px;
  border: 3px solid var(--slate-200);
  border-top-color: var(--blue-500);
  border-radius: 50%;
  animation: spin .7s linear infinite;
  flex-shrink: 0;
}

.arg-structure-btn-row {
  display: flex;
  justify-content: flex-end;
  margin: 8px 0 4px;
}

@media print {
  body > * { display: none !important; }
}

/* ─────────────────────────────────────────────
   Login / User Selection Screen
───────────────────────────────────────────── */
.login-screen {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--slate-50);
  padding: 24px;
}
.login-card {
  background: var(--white);
  border-radius: var(--radius-xl);
  box-shadow: var(--shadow-lg);
  padding: 40px 36px 36px;
  width: 100%;
  max-width: 420px;
  display: flex;
  flex-direction: column;
  gap: 4px;
}
.login-logo {
  font-size: 1rem;
  font-weight: 800;
  color: var(--blue-700);
  letter-spacing: -.02em;
  margin-bottom: 8px;
}
.login-card h2 {
  font-size: 1.5rem;
  font-weight: 800;
  color: var(--slate-900);
  margin: 0 0 2px;
}
.login-sub {
  font-size: .9rem;
  color: var(--slate-500);
  margin-bottom: 20px;
}
.user-select {
  width: 100%;
  padding: 10px 14px;
  border: 1.5px solid var(--slate-200);
  border-radius: var(--radius);
  font-size: .95rem;
  font-family: var(--font);
  background: var(--white);
  color: var(--slate-900);
  cursor: pointer;
  transition: border-color .15s;
}
.user-select:focus {
  outline: none;
  border-color: var(--blue-400);
}
.login-btn { width: 100%; margin-top: 8px; }
.login-divider {
  display: flex;
  align-items: center;
  gap: 12px;
  margin: 20px 0 12px;
  color: var(--slate-400);
  font-size: .78rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: .06em;
}
.login-divider::before, .login-divider::after {
  content: '';
  flex: 1;
  height: 1px;
  background: var(--slate-200);
}

/* ─────────────────────────────────────────────
   User Indicator (header + home hero)
───────────────────────────────────────────── */
.header-user {
  font-size: .8rem;
  font-weight: 600;
  color: var(--slate-600);
  display: flex;
  align-items: center;
  gap: 6px;
  white-space: nowrap;
}
.switch-user-link {
  color: var(--blue-600);
  font-weight: 600;
  cursor: pointer;
  text-decoration: underline;
  font-size: .78rem;
}
.switch-user-link:hover { color: var(--blue-800); }
.home-hero-top {
  display: flex;
  align-items: center;
  justify-content: space-between;
  width: 100%;
  margin-bottom: 4px;
}
.home-user-badge {
  font-size: .82rem;
  font-weight: 600;
  color: rgba(255,255,255,.75);
  display: flex;
  align-items: center;
  gap: 6px;
}
.home-user-badge .switch-user-link {
  color: rgba(255,255,255,.9);
  font-size: .78rem;
}

/* ─────────────────────────────────────────────
   Peer Reviews Needed — Dashboard Section
───────────────────────────────────────────── */
.peer-reviews-section {
  border-top: 2px solid var(--amber-200, #fde68a);
  padding-top: 24px;
}
.section-subtitle {
  font-size: .85rem;
  color: var(--slate-500);
  margin: 2px 0 0;
  font-weight: 400;
}
.section-count.peer-count {
  background: #fef3c7;
  color: #92400e;
}
.peer-review-list {
  display: flex;
  flex-direction: column;
  gap: 10px;
}
.peer-review-card {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  background: var(--white);
  border: 1.5px solid #fde68a;
  border-radius: var(--radius-lg);
  padding: 16px 20px;
  box-shadow: 0 1px 4px rgba(0,0,0,.05);
}
.peer-review-card-info { flex: 1; min-width: 0; }
.peer-review-card-title {
  font-size: .95rem;
  font-weight: 700;
  color: var(--slate-900);
  margin-bottom: 2px;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}
.peer-review-card-meta {
  font-size: .8rem;
  color: var(--slate-500);
}

/* ─────────────────────────────────────────────
   Status Badges — new statuses
───────────────────────────────────────────── */
.badge-pending-review {
  background: #fef3c7;
  color: #92400e;
  border: 1px solid #fde68a;
}
.badge-reviewed {
  background: #d1fae5;
  color: #065f46;
  border: 1px solid #6ee7b7;
}

/* ─────────────────────────────────────────────
   Step 5 — Waiting State
───────────────────────────────────────────── */
.peer-review-waiting {
  text-align: center;
  padding: 40px 20px;
}
.waiting-icon {
  font-size: 3rem;
  margin-bottom: 16px;
}
.peer-review-waiting h3 {
  font-size: 1.2rem;
  font-weight: 700;
  color: var(--slate-800);
  margin-bottom: 8px;
}
.peer-review-waiting p {
  color: var(--slate-600);
  font-size: .95rem;
}

/* ─────────────────────────────────────────────
   Step 5 — Reviewed Result Banner
───────────────────────────────────────────── */
.peer-review-result {
  background: var(--slate-50);
  border: 1.5px solid var(--slate-200);
  border-radius: var(--radius);
  padding: 16px 18px;
  margin-bottom: 20px;
}
.peer-review-result-header {
  display: flex;
  align-items: center;
  gap: 12px;
  flex-wrap: wrap;
}
.peer-review-result-badge {
  display: inline-block;
  font-size: .82rem;
  font-weight: 700;
  padding: 4px 12px;
  border-radius: 999px;
}
.peer-review-result-badge.approved {
  background: #d1fae5;
  color: #065f46;
}
.peer-review-result-badge.revision {
  background: #fee2e2;
  color: #991b1b;
}
.peer-review-result-by {
  font-size: .85rem;
  color: var(--slate-600);
}
.peer-review-result-notes {
  margin-top: 10px;
  font-size: .88rem;
  color: var(--slate-700);
  white-space: pre-wrap;
  border-top: 1px solid var(--slate-200);
  padding-top: 10px;
}

/* ─────────────────────────────────────────────
   Toast Notifications
───────────────────────────────────────────── */
#toast-container {
  position: fixed;
  bottom: 24px;
  right: 24px;
  z-index: 200;
  display: flex;
  flex-direction: column;
  gap: 10px;
  pointer-events: none;
}
.toast {
  background: var(--slate-900);
  color: #fff;
  font-size: .85rem;
  font-weight: 500;
  padding: 12px 18px;
  border-radius: var(--radius);
  box-shadow: var(--shadow-lg);
  animation: slideInRight .3s ease both;
  pointer-events: auto;
  max-width: 320px;
}
.toast-success { background: var(--green-600); }
.toast-error   { background: var(--red-600); }

/* ─────────────────────────────────────────────
   Divider
───────────────────────────────────────────── */
.divider {
  height: 1px;
  background: var(--slate-100);
  margin: 24px 0;
}

/* ─────────────────────────────────────────────
   Completion Screen
───────────────────────────────────────────── */
.complete-screen {
  flex: 1;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  text-align: center;
  padding: 60px 20px;
}
.complete-icon {
  font-size: 5rem;
  margin-bottom: 20px;
  filter: drop-shadow(0 4px 16px rgba(5,150,105,.3));
}
.complete-screen h2 {
  font-size: 2rem;
  font-weight: 800;
  color: var(--slate-900);
  letter-spacing: -.02em;
  margin-bottom: 10px;
}
.complete-screen p {
  font-size: 1rem;
  color: var(--slate-500);
  margin-bottom: 32px;
  max-width: 380px;
  line-height: 1.6;
}
.complete-actions { display: flex; gap: 12px; flex-wrap: wrap; justify-content: center; }

/* ─────────────────────────────────────────────
   Misc Helpers
───────────────────────────────────────────── */
.hidden { display: none !important; }
.text-sm { font-size: .85rem; }
.text-muted { color: var(--slate-500); }
.mt-4 { margin-top: 16px; }
.mt-6 { margin-top: 24px; }
.flex { display: flex; }
.items-center { align-items: center; }
.gap-2 { gap: 8px; }
.w-full { width: 100%; }

/* ─────────────────────────────────────────────
   Big Idea Weight + Rationale
───────────────────────────────────────────── */
.bi-weight-badge {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  background: #fff3cd;
  color: #7a5500;
  border: 1.5px solid #e0ac00;
  font-size: .72rem;
  font-weight: 800;
  border-radius: 999px;
  padding: 2px 9px;
  flex-shrink: 0;
  white-space: nowrap;
  letter-spacing: .04em;
}
.bi-weight-rationale {
  font-size: .78rem;
  font-style: italic;
  color: var(--slate-500);
  line-height: 1.4;
  padding: 0 2px;
}

/* ─────────────────────────────────────────────
   Penny Weight System
───────────────────────────────────────────── */

/* SA header layout */
.sa-header-left {
  display: flex;
  align-items: center;
  gap: 8px;
}
.sa-header-right {
  display: flex;
  align-items: center;
  gap: 8px;
  flex-shrink: 0;
}

/* Toggle switch */
.sa-toggle {
  position: relative;
  display: inline-block;
  width: 36px;
  height: 20px;
  flex-shrink: 0;
  cursor: pointer;
}
.sa-toggle input {
  opacity: 0;
  width: 0;
  height: 0;
  position: absolute;
}
.sa-toggle-slider {
  position: absolute;
  inset: 0;
  background: var(--slate-300);
  border-radius: 20px;
  transition: background var(--transition);
  pointer-events: none;
}
.sa-toggle-slider::before {
  content: '';
  position: absolute;
  left: 3px;
  top: 3px;
  width: 14px;
  height: 14px;
  background: white;
  border-radius: 50%;
  transition: transform var(--transition);
  pointer-events: none;
}
.sa-toggle input:checked + .sa-toggle-slider {
  background: var(--blue-600);
}
.sa-toggle input:checked + .sa-toggle-slider::before {
  transform: translateX(16px);
}

/* Disabled SA card — toggle stays full opacity so users can always re-enable */
.sa-disabled .sa-header-right,
.sa-disabled .supporting-arg-label,
.sa-disabled .form-group,
.sa-disabled .sa-penny-rationale,
.sa-disabled .sa-ai-reason,
.sa-disabled .sa-anchor-badge,
.sa-disabled .sa-efficiency,
.sa-disabled .sa-cost-detail {
  opacity: 0.42;
}
.sa-disabled textarea,
.sa-disabled input[type="number"] {
  background: var(--slate-100);
  cursor: not-allowed;
}

/* Penny cost field */
.sa-penny-field {
  display: flex;
  align-items: center;
  gap: 4px;
}
.sa-penny-label {
  font-size: .68rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: .04em;
  color: var(--slate-400);
}
.sa-penny-input {
  width: 52px;
  padding: 3px 6px;
  font-size: .85rem;
  font-weight: 600;
  border: 1.5px solid var(--slate-200);
  border-radius: 6px;
  text-align: center;
  color: var(--slate-700);
  background: white;
  outline: none;
  transition: border-color var(--transition);
}
.sa-penny-input:focus {
  border-color: var(--blue-500);
}
.sa-time-equiv {
  font-size: .75rem;
  color: var(--slate-500);
  white-space: nowrap;
  background: var(--slate-100);
  border-radius: 5px;
  padding: 2px 6px;
}

/* Penny budget tracker */
.penny-budget-tracker {
  background: var(--slate-50);
  border: 1.5px solid var(--slate-200);
  border-radius: 10px;
  padding: 14px 16px;
  margin-bottom: 20px;
}
.penny-budget-no-time {
  display: flex;
  align-items: center;
  gap: 10px;
  color: var(--slate-500);
  font-size: .85rem;
}
.penny-budget-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 8px;
}
.penny-budget-title {
  font-size: .78rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: .06em;
  color: var(--slate-500);
}
.penny-count {
  font-size: .85rem;
  font-weight: 700;
}
.penny-count-green { color: var(--green-600); }
.penny-count-yellow { color: var(--amber-600); }
.penny-count-red { color: var(--red-600); }

.penny-bar-track {
  height: 8px;
  background: var(--slate-200);
  border-radius: 4px;
  overflow: hidden;
  margin-bottom: 8px;
}
.penny-bar-fill {
  height: 100%;
  border-radius: 4px;
  transition: width 0.3s ease, background 0.3s ease;
}
.penny-bar-green  { background: var(--green-600); }
.penny-bar-yellow { background: var(--amber-600); }
.penny-bar-red    { background: var(--red-600); }

.penny-time-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  font-size: .8rem;
  color: var(--slate-500);
  margin-bottom: 4px;
}
.penny-time-row strong { color: var(--slate-700); }

.penny-no-time-hint {
  font-size: .78rem;
  color: var(--slate-400);
  font-style: italic;
  margin: 4px 0 8px;
}

/* Three-step sequential buttons */
.penny-steps {
  display: flex;
  flex-direction: column;
  gap: 8px;
  margin-top: 14px;
  padding-top: 14px;
  border-top: 1px solid var(--slate-200);
}
.penny-step-row {
  display: flex;
  align-items: center;
  gap: 12px;
}
.penny-step-num {
  width: 26px;
  height: 26px;
  border-radius: 50%;
  background: var(--slate-200);
  color: var(--slate-500);
  font-size: .72rem;
  font-weight: 800;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  transition: background var(--transition), color var(--transition);
}
.penny-step-num.done {
  background: var(--green-600);
  color: white;
}
.penny-step-num.locked {
  background: var(--slate-100);
  color: var(--slate-300);
}
.penny-step-body {
  display: flex;
  align-items: center;
  gap: 10px;
  flex: 1;
  flex-wrap: wrap;
}
.penny-action-btn {
  font-size: .82rem;
  padding: 6px 14px;
}
.penny-step-done-text {
  font-size: .83rem;
  font-weight: 600;
  color: var(--green-600);
}
.penny-rerun-btn {
  font-size: .73rem;
  color: var(--slate-400);
  padding: 2px 6px;
}
.penny-rerun-btn:hover { color: var(--blue-600); }
.penny-step-note {
  font-size: .73rem;
  font-weight: 600;
  padding: 2px 8px;
  border-radius: 5px;
}
.penny-step-note.ok   { background: var(--green-100); color: var(--green-600); }
.penny-step-note.warn { background: var(--amber-100); color: var(--amber-600); }

/* Inline spinner for button loading state */
.penny-spinner {
  display: inline-block;
  width: 12px;
  height: 12px;
  border: 2px solid rgba(255,255,255,0.4);
  border-top-color: white;
  border-radius: 50%;
  animation: spin 0.7s linear infinite;
  margin-right: 6px;
  vertical-align: middle;
}
@keyframes spin { to { transform: rotate(360deg); } }

/* Lock row */
.penny-lock-row {
  margin-top: 12px;
  padding-top: 12px;
  border-top: 1px solid var(--slate-200);
}
.btn-outline-slate {
  background: transparent;
  border: 1.5px solid var(--slate-300);
  color: var(--slate-600);
}
.btn-outline-slate:hover {
  background: var(--slate-100);
  border-color: var(--slate-400);
  color: var(--slate-800);
}

/* SA rationale and AI reason notes */
.sa-penny-rationale {
  font-size: .73rem;
  font-style: italic;
  color: var(--amber-600);
  margin-top: 5px;
  line-height: 1.4;
}
.sa-ai-reason {
  font-size: .73rem;
  color: var(--slate-500);
  margin-top: 4px;
  line-height: 1.4;
  padding: 4px 8px;
  background: var(--slate-50);
  border-left: 2px solid var(--slate-300);
  border-radius: 0 4px 4px 0;
}

/* ── Optimization summary banner ─────────────────────────────────────────── */
.optimization-summary-banner {
  background: linear-gradient(135deg, var(--blue-50), #eef2ff);
  border: 1px solid var(--blue-200);
  border-left: 4px solid var(--blue-500);
  border-radius: 8px;
  padding: 12px 16px;
  margin-bottom: 16px;
  font-size: .83rem;
  color: var(--slate-700);
  line-height: 1.5;
}

/* ── Rank badge on Big Idea header ────────────────────────────────────────── */
.bi-rank-badge {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  background: var(--amber-100);
  color: var(--amber-700);
  font-size: .7rem;
  font-weight: 700;
  border-radius: 5px;
  padding: 1px 6px;
  flex-shrink: 0;
  letter-spacing: .04em;
}

/* ── Dimension scores expandable ─────────────────────────────────────────── */
.bi-dims-section {
  margin-top: 6px;
}
.bi-dims-toggle {
  background: none;
  border: none;
  color: var(--slate-400);
  font-size: .72rem;
  cursor: pointer;
  padding: 0;
  line-height: 1.4;
}
.bi-dims-toggle:hover { color: var(--blue-600); }
.bi-dims-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(140px, 1fr));
  gap: 4px 10px;
  margin-top: 6px;
  padding: 8px 10px;
  background: var(--slate-50);
  border-radius: 6px;
  border: 1px solid var(--slate-200);
}
.bi-dim-item {
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: .72rem;
  color: var(--slate-600);
}
.bi-dim-label { font-weight: 500; }
.bi-dim-score { color: var(--blue-600); font-weight: 700; }

/* ── Anchor badge on SA cards ────────────────────────────────────────────── */
.sa-anchor-badge {
  display: inline-flex;
  align-items: center;
  gap: 3px;
  font-size: .7rem;
  font-weight: 700;
  color: var(--amber-700);
  background: var(--amber-50);
  border: 1px solid var(--amber-200);
  border-radius: 5px;
  padding: 1px 6px;
  margin-top: 4px;
}

/* ── Efficiency score badge ──────────────────────────────────────────────── */
.sa-efficiency {
  display: inline-flex;
  align-items: center;
  gap: 3px;
  font-size: .7rem;
  font-weight: 600;
  color: var(--green-700);
  background: var(--green-50);
  border: 1px solid var(--green-200);
  border-radius: 5px;
  padding: 1px 6px;
  margin-top: 4px;
  margin-left: 4px;
}

/* ── SA cost detail expandable ───────────────────────────────────────────── */
.sa-cost-detail {
  margin-top: 4px;
}
.sa-detail-toggle {
  background: none;
  border: none;
  color: var(--slate-400);
  font-size: .71rem;
  cursor: pointer;
  padding: 0;
  line-height: 1.4;
}
.sa-detail-toggle:hover { color: var(--blue-600); }
.sa-detail-body {
  font-size: .72rem;
  color: var(--slate-500);
  background: var(--slate-50);
  border-radius: 4px;
  padding: 4px 8px;
  margin-top: 4px;
  line-height: 1.5;
}

/* ── Error state for penny step number ───────────────────────────────────── */
.penny-step-num.error {
  background: var(--red-100);
  color: var(--red-600);
  border-color: var(--red-300);
}
.penny-step-error-text {
  font-size: .83rem;
  font-weight: 600;
  color: var(--red-600);
}

/* Step 4 summary penny badge */
.summary-penny-badge {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  background: var(--blue-100);
  color: var(--blue-700);
  font-size: .7rem;
  font-weight: 700;
  border-radius: 5px;
  padding: 1px 6px;
  margin-right: 6px;
  vertical-align: middle;
  flex-shrink: 0;
}
.summary-arg-disabled {
  opacity: 0.4;
  border-left-color: var(--slate-300);
}

/* ─────────────────────────────────────────────
   Responsive
───────────────────────────────────────────── */
@media (max-width: 640px) {
  .step-card-header, .step-card-body { padding: 20px; }
  .form-row { grid-template-columns: 1fr; }
  .summary-grid { grid-template-columns: 1fr; }
  .review-toggle { flex-direction: column; }
  .step-nav { flex-direction: column-reverse; gap: 10px; }
  .step-nav .btn { width: 100%; justify-content: center; }
  .step-nav-right { width: 100%; flex-direction: column; }
  .step-dot { width: 22px; height: 22px; font-size: .62rem; }
  .comm-grid { grid-template-columns: 1fr; }
  .home-hero { padding: 40px 20px 52px; }
}