:root {
  color-scheme: dark;
  --bg1: #1a1a2e;
  --bg2: #16213e;
  --bg3: #0f3460;
  --card: rgba(255,255,255,0.06);
  --border: rgba(255,255,255,0.12);
  --text: #f0f0f5;
  --text-secondary: #b8b8c8;
  --text-faint: #7a7a90;
  --accent: #4a9eff;
  --ok: #4ade80;
  --bad: #ff6b6b;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  min-height: 100vh;
  font-family: -apple-system, "Segoe UI", Roboto, Arial, sans-serif;
  background: linear-gradient(160deg, var(--bg1) 0%, var(--bg2) 50%, var(--bg3) 100%);
  background-attachment: fixed;
  color: var(--text);
}

a { color: var(--accent); }

.hidden { display: none !important; }

/* --- Login screen --- */
#login-screen {
  min-height: 100vh;
  display: flex; align-items: center; justify-content: center;
  padding: 24px;
}
.login-card {
  width: 100%; max-width: 380px;
  background: var(--card); border: 1px solid var(--border); border-radius: 20px;
  padding: 32px 28px;
}
.login-card h1 { font-size: 24px; margin: 0 0 4px; }
.login-card p.sub { color: var(--text-secondary); font-size: 14px; margin: 0 0 24px; }

/* --- Onboarding (eerste-keer-vragenlijst) --- */
#onboarding-screen {
  min-height: 100vh;
  display: flex; align-items: center; justify-content: center;
  padding: 24px;
}
.onboarding-card { width: 100%; max-width: 560px; }
.onboarding-card h1 { font-size: 24px; margin: 0 0 4px; }
.onboarding-card .sub { color: var(--text-secondary); font-size: 14px; margin: 0 0 24px; line-height: 1.5; }
.field { margin-bottom: 16px; }
.field:last-child { margin-bottom: 0; }
.field label { display: block; font-size: 13px; color: var(--text-secondary); margin-bottom: 6px; }
.field textarea { min-height: 60px; resize: vertical; }
.row-inline { display: flex; align-items: center; gap: 10px; }
.row-inline input { width: auto; flex: 1; }
.row-inline span { color: var(--text-faint); font-size: 13px; }

/* --- App shell --- */
#app-shell { display: flex; min-height: 100vh; }

nav#sidebar {
  width: 220px; flex-shrink: 0;
  background: rgba(0,0,0,0.18);
  border-right: 1px solid var(--border);
  padding: 24px 0;
  display: flex; flex-direction: column;
}
nav#sidebar .brand { font-size: 18px; font-weight: 700; padding: 0 24px 24px; }
nav#sidebar button.nav-item {
  display: block; width: 100%; text-align: left; background: none; border: none;
  color: var(--text-secondary); font-size: 15px; padding: 12px 24px; cursor: pointer;
  border-left: 3px solid transparent;
}
nav#sidebar button.nav-item:hover { background: rgba(255,255,255,0.04); }
nav#sidebar button.nav-item.active { color: var(--text); border-left-color: var(--accent); background: rgba(255,255,255,0.05); }
nav#sidebar .spacer { flex: 1; }
nav#sidebar .who { padding: 0 24px 8px; font-size: 12px; color: var(--text-faint); }

/* main#content zelf vult de hele resterende breedte naast de sidebar (nodig zodat de flex-berekening
   klopt); de daadwerkelijke content krijgt zijn max-breedte + centrering op het section-niveau
   eronder — anders blijft het blok bij max-width op #content zelf tegen de linkerkant vastgeplakt
   staan i.p.v. netjes gecentreerd in de resterende ruimte. */
main#content { flex: 1; padding: 32px 40px; }
main#content > section { max-width: 900px; margin: 0 auto; }
main#content h2 { font-size: 26px; margin: 0 0 24px; }

.card {
  background: var(--card); border: 1px solid var(--border); border-radius: 16px;
  padding: 20px 22px; margin-bottom: 20px;
}
.card h3 { font-size: 13px; text-transform: uppercase; letter-spacing: 0.04em; color: var(--text-faint); margin: 0 0 14px; font-weight: 600; }
.section-label { font-size: 13px; text-transform: uppercase; letter-spacing: 0.04em; color: var(--text-faint); margin: 24px 0 8px; font-weight: 600; }

.row {
  display: flex; align-items: center; justify-content: space-between;
  padding: 10px 0; border-bottom: 1px solid var(--border);
}
.row:last-child { border-bottom: none; }
.row .label { font-size: 15px; }
.row .meta { font-size: 12px; color: var(--text-faint); margin-top: 2px; }

button, .btn {
  font-family: inherit; font-size: 14px; font-weight: 600; cursor: pointer;
  border: none; border-radius: 10px; padding: 9px 16px;
  background: rgba(255,255,255,0.08); color: var(--text);
}
button:hover { background: rgba(255,255,255,0.14); }
button.primary { background: var(--accent); color: #fff; }
button.primary:hover { background: #3b8ce6; }
button.danger { background: rgba(255,107,107,0.18); color: var(--bad); }
button.danger:hover { background: rgba(255,107,107,0.28); }
button:disabled { opacity: 0.5; cursor: default; }
button.small { padding: 5px 10px; font-size: 12px; }

.btn-group { display: flex; gap: 6px; }
.btn-group button.active { background: var(--accent); color: #fff; }

input, textarea, select {
  width: 100%; padding: 11px 13px; border-radius: 10px; border: 1px solid var(--border);
  background: rgba(255,255,255,0.05); color: var(--text); font-size: 14px; font-family: inherit;
}
input:focus, textarea:focus, select:focus { outline: none; border-color: var(--accent); }

.toggle {
  position: relative; width: 44px; height: 26px; flex-shrink: 0;
  background: rgba(255,255,255,0.15); border-radius: 13px; cursor: pointer; border: none;
}
.toggle::after {
  content: ""; position: absolute; top: 3px; left: 3px; width: 20px; height: 20px;
  background: #fff; border-radius: 50%; transition: left 0.15s;
}
.toggle.on { background: var(--accent); }
.toggle.on::after { left: 21px; }
.toggle:disabled { opacity: 0.4; cursor: default; }

.badge { display: inline-block; font-size: 11px; padding: 2px 8px; border-radius: 8px; margin-left: 6px; }
.badge.ok { background: rgba(74,222,128,0.15); color: var(--ok); }
.badge.bad { background: rgba(255,107,107,0.15); color: var(--bad); }
.badge.neutral { background: rgba(255,255,255,0.1); color: var(--text-secondary); }

.empty { color: var(--text-faint); font-size: 14px; padding: 8px 0; }
.error-text { color: var(--bad); font-size: 13px; margin-top: 10px; }
.hint { color: var(--text-faint); font-size: 12px; margin: -8px 0 16px; line-height: 1.5; }

/* --- Chat --- */
#chat-messages { display: flex; flex-direction: column; gap: 10px; max-height: 55vh; overflow-y: auto; margin-bottom: 16px; }
.chat-msg { max-width: 75%; padding: 10px 14px; border-radius: 14px; font-size: 14px; line-height: 1.4; }
.chat-msg.user { align-self: flex-end; background: var(--accent); color: #fff; }
.chat-msg.assistant { align-self: flex-start; background: rgba(255,255,255,0.08); }
#chat-input-row { display: flex; gap: 8px; }
#chat-input-row input { flex: 1; }

@media (max-width: 720px) {
  #app-shell { flex-direction: column; }
  nav#sidebar { width: 100%; flex-direction: row; overflow-x: auto; padding: 12px; align-items: center; }
  nav#sidebar .brand, nav#sidebar .who, nav#sidebar .spacer { display: none; }
  nav#sidebar button.nav-item { width: auto; white-space: nowrap; border-left: none; border-bottom: 3px solid transparent; }
  nav#sidebar button.nav-item.active { border-bottom-color: var(--accent); }
  main#content { padding: 20px; }
}