:root {
  color-scheme: dark;
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  background: #06141a;
  color: #eefcff;
  --ink: #eefcff;
  --muted: #9fb6bd;
  --line: rgba(199, 235, 240, 0.16);
  --panel: rgba(10, 35, 44, 0.82);
  --panel-solid: #0b2730;
  --cyan: #4be4d5;
  --cyan-dark: #0b716c;
  --gold: #ffc857;
  --danger: #ff7383;
  --max: 1180px;
}

* { box-sizing: border-box; }
[hidden] { display: none !important; }
html { min-height: 100%; scroll-behavior: smooth; background: #06141a; }
body {
  min-height: 100vh;
  margin: 0;
  overflow-x: hidden;
  background:
    radial-gradient(circle at 15% 4%, rgba(40, 164, 158, .2), transparent 35rem),
    radial-gradient(circle at 90% 48%, rgba(63, 91, 167, .16), transparent 42rem),
    linear-gradient(135deg, #06141a 0%, #071b24 55%, #061218 100%);
}
body::before {
  position: fixed;
  inset: 0;
  z-index: 0;
  pointer-events: none;
  content: "";
  opacity: .16;
  background-image: linear-gradient(rgba(255,255,255,.035) 1px, transparent 1px), linear-gradient(90deg, rgba(255,255,255,.035) 1px, transparent 1px);
  background-size: 40px 40px;
  mask-image: linear-gradient(to bottom, black, transparent 86%);
}
button, input, select, textarea { font: inherit; }
button, select { cursor: pointer; }
button:disabled { cursor: not-allowed; opacity: .48; }
a { color: inherit; }
p { line-height: 1.58; }
h1, h2, h3, h4 { text-wrap: balance; }
h2 { margin: 6px 0 0; font-size: clamp(2rem, 4.5vw, 4rem); line-height: 1; letter-spacing: -.055em; }
h3 { margin: 8px 0; font-size: clamp(1.3rem, 2.2vw, 1.8rem); letter-spacing: -.025em; }
h4 { margin: 24px 0 10px; }

.skip-link { position: fixed; left: 12px; top: -70px; z-index: 40; padding: 10px 14px; border-radius: 8px; color: #06141a; background: #fff; }
.skip-link:focus { top: 12px; }
.topbar {
  position: sticky;
  top: 0;
  z-index: 20;
  min-height: 76px;
  display: grid;
  grid-template-columns: auto 1fr auto;
  align-items: center;
  gap: 28px;
  padding: 13px clamp(18px, 4vw, 56px);
  border-bottom: 1px solid var(--line);
  background: rgba(4, 17, 23, .78);
  backdrop-filter: blur(18px);
}
.brand { display: inline-flex; align-items: center; gap: 12px; text-decoration: none; }
.brand-mark { width: 42px; height: 42px; display: grid; place-items: center; border: 1px solid rgba(75,228,213,.55); border-radius: 12px; color: var(--cyan); font-weight: 850; letter-spacing: -.05em; background: rgba(75,228,213,.08); }
.brand strong, .brand small { display: block; }
.brand strong { letter-spacing: .09em; font-size: .98rem; }
.brand small { margin-top: 2px; color: var(--muted); font-size: .73rem; }
.topnav { display: flex; justify-content: center; gap: clamp(12px, 2.5vw, 32px); }
.topnav a { color: var(--muted); text-decoration: none; font-size: .85rem; }
.topnav a:hover, .topnav a:focus-visible { color: var(--cyan); }
.topbar-actions { display: flex; align-items: center; gap: 9px; }
.icon-button { min-width: 40px; min-height: 40px; border: 1px solid var(--line); border-radius: 11px; color: var(--ink); background: rgba(255,255,255,.04); }
.status-badge { display: inline-flex; align-items: center; gap: 8px; min-height: 34px; max-width: 280px; padding: 7px 11px; border: 1px solid var(--line); border-radius: 999px; color: var(--muted); font-size: .8rem; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.status-badge::before { width: 7px; height: 7px; flex: 0 0 auto; border-radius: 50%; content: ""; background: var(--gold); }
.status-badge[data-status="connected"]::before { background: var(--cyan); box-shadow: 0 0 14px var(--cyan); }
.status-badge[data-status="error"]::before { background: var(--danger); }

main, footer { position: relative; z-index: 1; }
.hero {
  min-height: calc(86vh - 76px);
  display: grid;
  grid-template-columns: minmax(0, 1.05fr) minmax(340px, .95fr);
  border-bottom: 1px solid var(--line);
}
.hero-copy { display: flex; flex-direction: column; justify-content: center; padding: clamp(50px, 8vw, 112px); }
.eyebrow, .step-label { color: var(--cyan); text-transform: uppercase; letter-spacing: .14em; font-weight: 760; font-size: .72rem; }
.eyebrow { display: flex; align-items: center; gap: 9px; }
.pulse-dot { width: 9px; height: 9px; border-radius: 50%; background: var(--cyan); box-shadow: 0 0 0 0 rgba(75,228,213,.36); animation: pulse 2.2s infinite; }
body[data-face-state="thinking"] .pulse-dot { background: var(--gold); }
body[data-face-state="listening"] .pulse-dot { animation-duration: .8s; }
@keyframes pulse { 70% { box-shadow: 0 0 0 12px rgba(75,228,213,0); } 100% { box-shadow: 0 0 0 0 rgba(75,228,213,0); } }
.hero h1 { margin: 22px 0; font-size: clamp(5rem, 11vw, 10.5rem); line-height: .75; letter-spacing: -.09em; }
.lead { max-width: 720px; margin: 0; color: #d5e8eb; font-size: clamp(1.08rem, 1.8vw, 1.36rem); }
.hero-actions, .button-row, .card-actions, .account-actions { display: flex; align-items: center; flex-wrap: wrap; gap: 10px; }
.hero-actions { margin-top: 28px; }
.boundary-note { display: flex; flex-wrap: wrap; gap: 8px 16px; align-items: baseline; margin-top: 34px; color: var(--muted); font-size: .8rem; }
.boundary-note strong { color: var(--cyan); letter-spacing: .09em; text-transform: uppercase; }
.face-stage { display: flex; flex-direction: column; justify-content: center; align-items: center; padding: clamp(30px, 6vw, 84px); border-left: 1px solid var(--line); background: rgba(6,24,31,.46); text-align: center; }
.face-stage p { max-width: 520px; color: var(--muted); }
.eyes { width: min(100%, 600px); display: grid; grid-template-columns: repeat(2, 1fr); gap: clamp(16px, 3vw, 28px); margin: 20px 0; }
.eye { position: relative; display: block; overflow: hidden; aspect-ratio: 1.38; border: 2px solid rgba(197,255,250,.74); border-radius: 50%; background: radial-gradient(circle at 50% 52%, rgba(75,228,213,.2), transparent 34%), rgba(218,255,252,.92); box-shadow: inset 0 0 40px rgba(2,44,50,.35), 0 0 36px rgba(75,228,213,.09); }
.pupil { position: absolute; width: 26%; aspect-ratio: 1; left: 37%; top: 37%; border-radius: 50%; background: radial-gradient(circle at 36% 32%, #dffffc 0 7%, #51ddcf 8% 18%, #042b34 20% 68%, #020a0d 70%); box-shadow: 0 0 18px rgba(75,228,213,.8); transition: transform .25s ease; }
body[data-face-state="thinking"] .pupil { animation: look 1.2s ease-in-out infinite alternate; }
body[data-face-state="listening"] .pupil { transform: scale(1.14); }
body[data-face-state="speaking"] .eye { box-shadow: inset 0 0 40px rgba(2,44,50,.35), 0 0 38px rgba(75,228,213,.27); }
@keyframes look { from { transform: translateX(-22%); } to { transform: translateX(22%); } }

.page-section { width: min(var(--max), calc(100% - 36px)); margin: 0 auto; padding: clamp(56px, 8vw, 108px) 0; }
.page-section + .page-section { border-top: 1px solid var(--line); }
.account-gate { display: flex; align-items: center; justify-content: space-between; gap: 34px; padding: clamp(28px, 4vw, 44px); border: 1px solid rgba(255,200,87,.28) !important; border-radius: 22px; background: rgba(255,200,87,.06); margin-top: clamp(38px, 6vw, 72px); }
.account-gate[data-connected="true"] { border-color: rgba(75,228,213,.32) !important; background: rgba(75,228,213,.06); }
.account-gate h2 { max-width: 780px; font-size: clamp(1.6rem, 3vw, 2.6rem); }
.account-gate p { max-width: 780px; margin-bottom: 0; color: var(--muted); }
.section-heading { display: flex; justify-content: space-between; align-items: flex-start; gap: 24px; }
.section-intro { max-width: 850px; margin: 20px 0 34px; color: var(--muted); font-size: 1.02rem; }
.section-chip { flex: 0 0 auto; padding: 8px 11px; border: 1px solid var(--line); border-radius: 999px; color: var(--muted); font-size: .78rem; }
.primary-button, .secondary-button { min-height: 44px; display: inline-flex; align-items: center; justify-content: center; border-radius: 10px; padding: 10px 16px; font-weight: 740; }
.primary-button { border: 1px solid var(--cyan); color: #03211f; background: var(--cyan); }
.secondary-button { border: 1px solid var(--line); color: var(--ink); background: rgba(255,255,255,.055); }
.link-button { text-decoration: none; }
.text-button { border: 0; padding: 7px 0; color: var(--ink); background: none; }
.text-link { color: var(--cyan); font-weight: 700; text-decoration: none; }
.text-link:hover, .text-link:focus-visible { text-decoration: underline; }
.break-link { overflow-wrap: anywhere; }
.danger { color: var(--danger); }
.danger-outline { border-color: rgba(255,115,131,.5); color: #ffc0c8; }

.feature-grid { display: grid; grid-template-columns: repeat(4, minmax(0,1fr)); gap: 14px; }
.feature-card, .extension-card, .panel-card, .consent-panel { border: 1px solid var(--line); border-radius: 20px; background: var(--panel); box-shadow: 0 28px 80px rgba(0,0,0,.16); }
.feature-card { min-height: 290px; display: flex; flex-direction: column; align-items: flex-start; padding: 23px; }
.feature-card p { flex: 1; color: var(--muted); font-size: .9rem; }
.feature-card .secondary-button { width: 100%; }
.feature-icon { width: 38px; height: 38px; display: grid; place-items: center; border-radius: 11px; color: var(--cyan); background: rgba(75,228,213,.09); font-weight: 800; }
.status-copy, .privacy-copy { color: var(--muted); font-size: .78rem; line-height: 1.5; }
.feature-card .status-copy { margin-top: 10px; }
.camera-card video { width: 100%; max-height: 220px; margin: 8px 0 13px; border-radius: 12px; object-fit: cover; background: #02090c; }

.conversation { scroll-margin-top: 78px; }
.messages { min-height: 190px; max-height: 56vh; display: flex; flex-direction: column; gap: 10px; overflow: auto; margin: 25px 0 12px; }
.messages:empty::before { min-height: 180px; display: grid; place-items: center; border: 1px dashed var(--line); border-radius: 18px; color: var(--muted); text-align: center; content: "AI NOAH wartet auf deine erste Nachricht.\A Versuche „Hilfe“, „Wer bin ich?“ oder „Wie bist du?“"; white-space: pre-line; }
.message { width: fit-content; max-width: min(780px, 92%); padding: 13px 15px; border-radius: 15px; line-height: 1.5; white-space: pre-wrap; overflow-wrap: anywhere; }
.message.user { align-self: flex-end; border-bottom-right-radius: 4px; color: #03211f; background: var(--cyan); }
.message.assistant { align-self: flex-start; border: 1px solid var(--line); border-bottom-left-radius: 4px; background: rgba(255,255,255,.075); }
.message.system { align-self: center; border: 1px solid rgba(255,200,87,.2); color: #ffe5aa; background: rgba(255,200,87,.08); }
.composer { padding: 11px; border: 1px solid var(--line); border-radius: 16px; background: rgba(255,255,255,.045); }
.composer textarea { min-height: 76px; border: 0; background: transparent; box-shadow: none; }
.composer-actions { display: flex; align-items: center; gap: 12px; }
.composer-actions .status-copy { flex: 1; }
.round-button { width: 44px; height: 44px; flex: 0 0 auto; border: 1px solid var(--line); border-radius: 50%; color: var(--cyan); background: rgba(75,228,213,.08); }
.round-button.is-active { color: #071a22; background: var(--danger); border-color: var(--danger); animation: pulse 1s infinite; }

.extension-grid { display: grid; grid-template-columns: repeat(2, minmax(0,1fr)); gap: 18px; margin-top: 34px; }
.extension-card { position: relative; min-height: 330px; display: flex; flex-direction: column; padding: clamp(24px, 4vw, 40px); overflow: hidden; }
.extension-card h3 { font-size: clamp(2.6rem, 6vw, 5rem); letter-spacing: -.065em; }
.extension-card p { max-width: 560px; flex: 1; color: var(--muted); }
.extension-number { position: absolute; right: 18px; top: 0; color: rgba(75,228,213,.08); font-size: 9rem; font-weight: 900; line-height: 1; }
.card-actions { position: relative; }
.extension-toggle.is-active { border-color: rgba(75,228,213,.55); color: var(--cyan); }

.consent-panel { margin-top: 32px; padding: clamp(24px, 4vw, 42px); border-color: rgba(255,200,87,.36); }
.consent-panel > p { max-width: 800px; color: var(--muted); }
.consent-options { display: grid; gap: 6px; margin-top: 22px; }
.consent-options label { display: grid; grid-template-columns: auto 1fr; gap: 13px; align-items: start; padding: 14px; border: 1px solid var(--line); border-radius: 13px; background: rgba(255,255,255,.025); }
.consent-options input { width: 22px; height: 22px; margin-top: 2px; accent-color: var(--cyan-dark); }
.consent-options strong, .consent-options small { display: block; }
.consent-options small { margin-top: 4px; color: var(--muted); line-height: 1.45; }
.consent-options .primary-button { margin-top: 12px; justify-self: start; }
.private-grid { display: grid; grid-template-columns: repeat(2, minmax(0,1fr)); gap: 18px; margin-top: 34px; }
.panel-card { padding: clamp(22px, 3.5vw, 34px); }
.profile-panel { grid-row: span 2; }
.stack-form { display: grid; gap: 16px; margin-top: 22px; }
.form-grid { display: grid; grid-template-columns: repeat(2, minmax(0,1fr)); gap: 14px; }
label { display: grid; gap: 8px; color: #d9ebee; font-size: .88rem; }
input, select, textarea { width: 100%; border: 1px solid var(--line); border-radius: 10px; padding: 12px 13px; outline: 0; color: var(--ink); background: rgba(255,255,255,.055); }
input:focus, select:focus, textarea:focus { border-color: var(--cyan); box-shadow: 0 0 0 3px rgba(75,228,213,.12); }
textarea { resize: vertical; line-height: 1.45; }
.data-list { display: grid; gap: 2px; }
.data-list div { display: grid; grid-template-columns: minmax(130px, .8fr) minmax(0,1.2fr); gap: 14px; padding: 10px 0; border-bottom: 1px solid var(--line); }
.data-list dt { color: var(--muted); }
.data-list dd { margin: 0; overflow-wrap: anywhere; }
.device-list, .memory-list { margin: 12px 0 24px; padding: 0; list-style: none; }
.device-list li, .memory-list li { display: flex; justify-content: space-between; gap: 12px; padding: 10px 0; border-bottom: 1px solid var(--line); color: var(--muted); }
.memory-list strong { color: var(--ink); }
.memory-state { color: var(--cyan); font-size: .78rem; }
.qr-panel { text-align: center; }
.public-qr-panel { margin-top: 32px; }
.qr-card { width: min(100%, 268px); margin: 20px auto; padding: 17px; border-radius: 22px; background: #fff; box-shadow: 0 24px 70px rgba(0,0,0,.25); }
.qr-card canvas, .qr-card img { width: 100%; height: auto; display: block; image-rendering: pixelated; }
.qr-card p { color: #071a22; }

.privacy-section h2 { max-width: 900px; }
.privacy-grid { display: grid; grid-template-columns: repeat(4, minmax(0,1fr)); gap: 16px; margin-top: 34px; }
.privacy-grid p { margin: 0; padding: 20px; border-left: 2px solid rgba(75,228,213,.45); color: var(--muted); background: rgba(255,255,255,.025); }
.privacy-grid strong { color: var(--ink); }
footer { width: min(var(--max), calc(100% - 36px)); display: flex; justify-content: space-between; gap: 20px; margin: 0 auto; padding: 30px 0 48px; border-top: 1px solid var(--line); color: var(--muted); font-size: .8rem; }
.toast { position: fixed; right: 18px; bottom: 18px; z-index: 40; max-width: 380px; padding: 13px 16px; border: 1px solid var(--line); border-radius: 12px; background: #102d36; box-shadow: 0 16px 50px rgba(0,0,0,.35); }
.sr-only { position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px; overflow: hidden; clip: rect(0,0,0,0); white-space: nowrap; border: 0; }

/* Gemeinsame Fragebogen-Seiten */
.questionnaire-main { width: min(980px, calc(100% - 34px)); margin: 0 auto; padding: clamp(42px, 7vw, 90px) 0; }
.questionnaire-hero { padding-bottom: 36px; }
.questionnaire-hero h1 { max-width: 900px; margin: 18px 0; font-size: clamp(3.2rem, 10vw, 7.5rem); line-height: .82; letter-spacing: -.075em; }
.questionnaire-hero .lead { max-width: 820px; }
.questionnaire-account { display: flex; align-items: center; justify-content: space-between; gap: 22px; margin: 26px 0; padding: 18px 20px; border: 1px solid var(--line); border-radius: 16px; background: var(--panel); }
.questionnaire-account p { margin: 0; color: var(--muted); }
.progress-wrap { position: sticky; top: 75px; z-index: 8; padding: 14px 0; background: rgba(6,20,26,.9); backdrop-filter: blur(10px); }
.progress-meta { display: flex; justify-content: space-between; gap: 16px; margin-bottom: 8px; color: var(--muted); font-size: .8rem; }
.progress-bar { height: 7px; overflow: hidden; border-radius: 99px; background: rgba(255,255,255,.08); }
.progress-bar span { display: block; width: 0; height: 100%; border-radius: inherit; background: var(--cyan); transition: width .2s ease; }
.questionnaire-form { display: grid; gap: 14px; margin-top: 28px; }
.question-card { padding: 20px; border: 1px solid var(--line); border-radius: 16px; background: rgba(10,35,44,.7); }
.question-card label { font-size: 1rem; line-height: 1.45; }
.question-number { color: var(--cyan); font-size: .7rem; letter-spacing: .12em; text-transform: uppercase; }
.question-card textarea { min-height: 104px; margin-top: 11px; }
.questionnaire-actions { position: sticky; bottom: 12px; display: flex; align-items: center; justify-content: space-between; gap: 14px; margin-top: 12px; padding: 13px; border: 1px solid var(--line); border-radius: 15px; background: rgba(7,27,36,.95); box-shadow: 0 14px 45px rgba(0,0,0,.32); }
.questionnaire-notice { margin: 24px 0; padding: 18px; border-left: 3px solid var(--gold); color: var(--muted); background: rgba(255,200,87,.06); }

@media (max-width: 1000px) {
  .feature-grid, .privacy-grid { grid-template-columns: repeat(2, minmax(0,1fr)); }
  .hero { grid-template-columns: 1fr; }
  .face-stage { min-height: 54vw; border-left: 0; border-top: 1px solid var(--line); }
}
@media (max-width: 800px) {
  .topbar { grid-template-columns: auto 1fr; }
  .topnav { display: none; }
  .topbar-actions { justify-self: end; }
  .extension-grid, .private-grid { grid-template-columns: 1fr; }
  .profile-panel { grid-row: auto; }
  .account-gate, .section-heading, .questionnaire-account { align-items: flex-start; flex-direction: column; }
}
@media (max-width: 560px) {
  .topbar { min-height: 66px; padding: 11px 14px; }
  .brand small, .status-badge { display: none; }
  .hero-copy { padding: 50px 22px; }
  .face-stage { padding: 48px 22px; }
  .feature-grid, .privacy-grid, .form-grid { grid-template-columns: 1fr; }
  .feature-card { min-height: 250px; }
  .page-section { width: min(calc(100% - 28px), var(--max)); }
  .account-gate { margin-top: 28px; }
  .composer-actions { flex-wrap: wrap; }
  .composer-actions .status-copy { order: 3; flex-basis: 100%; }
  .questionnaire-main { width: min(calc(100% - 24px), 980px); }
  .questionnaire-main *, .questionnaire-account > * { min-width: 0; }
  .questionnaire-hero .lead, .questionnaire-notice, .questionnaire-account p { overflow-wrap: anywhere; }
  .questionnaire-account, .question-card { width: 100%; }
  .questionnaire-actions { align-items: stretch; flex-direction: column; }
  .questionnaire-actions .primary-button { width: 100%; }
  footer { flex-direction: column; }
}
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { scroll-behavior: auto !important; animation-duration: .01ms !important; animation-iteration-count: 1 !important; }
}