:root {
  --cream:      #f7f4ef;
  --white:      #ffffff;
  --ink:        #1a1a2e;
  --slate:      #3d4a5c;
  --fog:        #8a96a3;
  --teal:       #2e7d82;
  --teal-lt:    #4ba3a8;
  --teal-pale:  #e6f3f4;
  --gold:       #c8a96e;
  --danger:     #b3453c;
  --danger-bg:  #fbe9e7;
  --success:    #2f7d5f;
  --success-bg: #e7f4ee;
  --warning:    #a5762f;
  --warning-bg: #faf1e2;
  --sans: 'DM Sans', system-ui, -apple-system, sans-serif;
  --serif: 'Cormorant Garamond', Georgia, serif;
  --radius: 12px;
  --shadow: 0 4px 20px rgba(26,26,46,0.08);
  --shadow-lg: 0 10px 40px rgba(26,26,46,0.12);
}
* { box-sizing: border-box; }
html, body { margin:0; padding:0; background:var(--cream); color:var(--ink); font-family:var(--sans); font-size:16px; line-height:1.55; }
h1,h2,h3,h4 { font-family:var(--serif); color:var(--ink); font-weight:600; margin:0 0 0.5em; }
a { color:var(--teal); text-decoration:none; cursor:pointer; }
a:hover { color:var(--teal-lt); text-decoration:underline; }
.container { max-width:1100px; margin:0 auto; padding:0 20px; }
.container-narrow { max-width:720px; margin:0 auto; padding:0 20px; }

/* Prototype banner */
.proto-banner {
  background:var(--ink); color:var(--white); text-align:center;
  font-size:0.78rem; padding:7px 14px;
}
.proto-banner a, .proto-banner button {
  color:var(--gold); background:none; border:none; font-size:0.78rem;
  text-decoration:underline; cursor:pointer; font-family:var(--sans);
}

/* Nav */
.navbar { background:var(--ink); color:var(--white); padding:14px 0; }
.navbar .container { display:flex; align-items:center; justify-content:space-between; flex-wrap:wrap; }
.navbar-brand { font-family:var(--serif); font-size:1.4rem; color:var(--white); font-weight:700; letter-spacing:0.02em; }
.navbar-brand:hover { color:var(--gold); text-decoration:none; }
.navbar-links { display:flex; gap:6px; align-items:center; flex-wrap:wrap; }
.navbar-links a { color:var(--white); opacity:0.85; padding:8px 12px; border-radius:8px; font-size:0.92rem; }
.navbar-links a:hover { opacity:1; background:rgba(255,255,255,0.08); text-decoration:none; }
.navbar-links a.active { background:var(--teal); opacity:1; }
.navbar-toggle { display:none; background:none; border:none; color:var(--white); font-size:1.5rem; cursor:pointer; }
@media (max-width: 900px) {
  .navbar-toggle { display:block; }
  .navbar-links { display:none; flex-direction:column; width:100%; align-items:stretch; margin-top:12px; }
  .navbar-links.open { display:flex; }
  .navbar-links a { padding:12px; }
}

.card { background:var(--white); border-radius:var(--radius); box-shadow:var(--shadow); padding:24px; margin-bottom:20px; }
.card-header { display:flex; justify-content:space-between; align-items:center; margin-bottom:16px; flex-wrap:wrap; gap:10px; }
.grid { display:grid; gap:20px; }
.grid-2 { grid-template-columns:repeat(2,1fr); }
.grid-3 { grid-template-columns:repeat(3,1fr); }
@media (max-width:760px) { .grid-2, .grid-3 { grid-template-columns:1fr; } }

.btn { display:inline-block; border:none; border-radius:8px; padding:11px 20px; font-family:var(--sans); font-size:0.95rem; font-weight:600; cursor:pointer; text-align:center; transition:transform .1s ease; }
.btn:hover { text-decoration:none; }
.btn:active { transform:translateY(1px); }
.btn-primary { background:var(--teal); color:var(--white); }
.btn-primary:hover { background:var(--teal-lt); color:var(--white); }
.btn-gold { background:var(--gold); color:var(--ink); }
.btn-gold:hover { background:#d8bb85; color:var(--ink); }
.btn-outline { background:transparent; color:var(--teal); border:1.5px solid var(--teal); }
.btn-outline:hover { background:var(--teal-pale); }
.btn-danger { background:var(--danger); color:var(--white); }
.btn-danger:hover { background:#c1554b; color:var(--white); }
.btn-sm { padding:6px 12px; font-size:0.82rem; }
.btn-block { width:100%; }

label { display:block; font-weight:600; margin-bottom:6px; font-size:0.92rem; color:var(--slate); }
input[type=text], input[type=password], input[type=email], input[type=number], textarea, select {
  width:100%; padding:11px 14px; border:1.5px solid #dfe3e8; border-radius:8px;
  font-family:var(--sans); font-size:1rem; background:var(--white); color:var(--ink); margin-bottom:16px;
}
input:focus, textarea:focus, select:focus { outline:none; border-color:var(--teal); box-shadow:0 0 0 3px var(--teal-pale); }
textarea { resize:vertical; min-height:90px; }
.form-help { font-size:0.82rem; color:var(--fog); margin-top:-12px; margin-bottom:16px; }

.alert { padding:12px 16px; border-radius:8px; margin-bottom:14px; font-size:0.92rem; }
.alert-success { background:var(--success-bg); color:var(--success); }
.alert-danger  { background:var(--danger-bg); color:var(--danger); }
.alert-warning { background:var(--warning-bg); color:var(--warning); }

.badge { display:inline-block; padding:3px 10px; border-radius:100px; font-size:0.75rem; font-weight:700; text-transform:uppercase; letter-spacing:0.03em; }
.badge-teal  { background:var(--teal-pale); color:var(--teal); }
.badge-gold  { background:#f6ecd9; color:var(--warning); }
.badge-danger{ background:var(--danger-bg); color:var(--danger); }
.badge-gray  { background:#eef0f2; color:var(--slate); }

.score-ring-wrap { display:flex; flex-direction:column; align-items:center; gap:8px; }
.score-number { font-family:var(--serif); font-size:2.2rem; font-weight:700; color:var(--teal); }
.score-label { font-size:0.85rem; color:var(--slate); text-align:center; }

.likert-row { border-bottom:1px solid #eee; padding:18px 0; }
.likert-question { font-weight:600; margin-bottom:10px; }
.likert-options { display:flex; gap:8px; flex-wrap:wrap; }
.likert-options label { display:flex; align-items:center; gap:6px; font-weight:400; background:var(--teal-pale); padding:8px 14px; border-radius:100px; cursor:pointer; margin:0; font-size:0.85rem; color:var(--slate); border:1.5px solid transparent; }
.likert-options input[type=radio] { margin:0; width:auto; accent-color:var(--teal); }
.likert-options label:has(input:checked) { background:var(--teal); color:var(--white); border-color:var(--teal); }

.section-heading { margin-top:30px; margin-bottom:6px; color:var(--teal); font-size:1.1rem; border-bottom:2px solid var(--teal-pale); padding-bottom:8px; }

.chat-window { height:55vh; min-height:320px; overflow-y:auto; border:1.5px solid #eee; border-radius:10px; padding:16px; background:#fbfbf9; margin-bottom:16px; }
.chat-bubble { max-width:80%; padding:10px 14px; border-radius:14px; margin-bottom:10px; font-size:0.94rem; white-space:pre-wrap; }
.chat-bubble.user { background:var(--teal); color:var(--white); margin-left:auto; border-bottom-right-radius:2px; }
.chat-bubble.assistant { background:var(--teal-pale); color:var(--ink); margin-right:auto; border-bottom-left-radius:2px; }
.chat-input-row { display:flex; gap:10px; }
.chat-input-row textarea { margin-bottom:0; min-height:48px; flex:1; }

.muted { color:var(--fog); }
.text-center { text-align:center; }
.mt-0 { margin-top:0; } .mb-0 { margin-bottom:0; }
.divider { border:none; border-top:1px solid #eee; margin:20px 0; }
.report-box { background:var(--teal-pale); border-left:4px solid var(--teal); border-radius:8px; padding:18px 20px; white-space:pre-wrap; font-size:0.95rem; line-height:1.65; }
table { width:100%; border-collapse:collapse; }
th, td { text-align:left; padding:10px 8px; border-bottom:1px solid #eee; font-size:0.9rem; }
th { color:var(--slate); font-size:0.78rem; text-transform:uppercase; letter-spacing:0.03em; }
.table-wrap { overflow-x:auto; }
footer { text-align:center; padding:30px 0; color:var(--fog); font-size:0.82rem; }

.auth-shell { min-height:80vh; display:flex; align-items:center; justify-content:center; padding:20px; }
.auth-card { background:var(--white); border-radius:var(--radius); box-shadow:var(--shadow-lg); padding:40px; width:100%; max-width:440px; }
.auth-card h1 { text-align:center; font-size:1.8rem; }
.auth-subtitle { text-align:center; color:var(--fog); margin-bottom:24px; font-size:0.9rem; }
.demo-hint { background:var(--teal-pale); border-radius:8px; padding:12px 14px; font-size:0.82rem; color:var(--teal); margin-top:16px; }

main.container { padding-top:28px; padding-bottom:40px; }
.hidden { display:none !important; }
code { background:#f0f0ee; padding:1px 6px; border-radius:4px; font-size:0.88em; }
pre { background:#f4f4f2; padding:16px; border-radius:8px; overflow-x:auto; font-size:0.82rem; }