:root {
  --paper: #f6f5f1;
  --paper-raised: #fdfdfb;
  --ink: #14181f;
  --ink-soft: #4a5061;
  --line: #d8d4c9;
  --line-strong: #b9b4a6;
  --wire: #2a4b8d;
  --wire-soft: #e4e9f4;
  --signal: #ff6b35;
  --signal-ink: #7a2c0c;
  --up: #2f9e44;
  --up-bg: #e7f5ea;
  --down: #d6455b;
  --down-bg: #fbe9ec;
  --warn: #b8790a;
  --warn-bg: #faf0dd;
  --neutral-bg: #ebe9e3;

  --font-ui: 'IBM Plex Sans', system-ui, sans-serif;
  --font-data: 'IBM Plex Mono', 'Courier New', monospace;

  --radius: 3px;
}

* { box-sizing: border-box; }

body {
  display: flex;
  flex-direction: column;
  min-height: 100vh;
  margin: 0;
  background: var(--paper);
  background-image:
    linear-gradient(rgba(20, 24, 31, 0.05) 1px, transparent 1px),
    linear-gradient(90deg, rgba(20, 24, 31, 0.05) 1px, transparent 1px);
  background-size: 32px 32px;
  background-position: -1px -1px;
  color: var(--ink);
  font-family: var(--font-ui);
  -webkit-font-smoothing: antialiased;
}

.hero { background-image: none; }

:focus-visible {
  outline: 2px solid var(--signal);
  outline-offset: 2px;
}

.hero {
  position: relative;
  overflow: hidden;
  border-bottom: 1px solid var(--line-strong);
  background: var(--paper-raised);
  padding: 4.5rem 1.5rem 3.5rem;
}

.hero::before {
  content: '';
  position: absolute;
  top: -280px;
  left: 50%;
  width: 900px;
  height: 560px;
  transform: translateX(-50%);
  background: radial-gradient(closest-side, rgba(255, 107, 53, 0.1), transparent 72%);
  pointer-events: none;
}

.hero-inner {
  position: relative;
  max-width: 640px;
  margin: 0 auto;
}

.eyebrow {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-family: var(--font-data);
  font-size: 0.8rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--wire);
  margin: 0 0 0.75rem;
}

.brand-mark { display: block; }

h1 {
  font-size: clamp(2.1rem, 5vw, 3.1rem);
  font-weight: 700;
  line-height: 1.1;
  margin: 0 0 0.7rem;
  letter-spacing: -0.02em;
}

h1 .accent {
  color: var(--signal);
  background-image: linear-gradient(transparent 78%, rgba(255, 107, 53, 0.25) 0);
  background-repeat: no-repeat;
}

.hero-sub {
  font-size: 1.05rem;
  color: var(--ink-soft);
  margin: 0 0 1.75rem;
  max-width: 46ch;
}

.hero-trace {
  position: relative;
  height: 2px;
  margin: 0 0 1.75rem;
  background: linear-gradient(90deg, transparent, var(--line-strong) 15%, var(--line-strong) 85%, transparent);
  overflow: hidden;
}

.hero-trace::after {
  content: '';
  position: absolute;
  inset: 0;
  width: 25%;
  background: linear-gradient(90deg, transparent, var(--signal), transparent);
  animation: trace-sweep 4s ease-in-out infinite;
}

@keyframes trace-sweep {
  0% { transform: translateX(-120%); }
  100% { transform: translateX(500%); }
}

.prompt {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  background: var(--ink);
  border-radius: var(--radius);
  padding: 0.2rem 0.2rem 0.2rem 1rem;
  box-shadow: 3px 3px 0 var(--line-strong), 0 18px 34px rgba(20, 24, 31, 0.16);
  transition: box-shadow 0.2s ease;
}

.prompt-glyph {
  font-family: var(--font-data);
  color: var(--signal);
  font-size: 0.95rem;
  white-space: nowrap;
}

.prompt input {
  flex: 1;
  min-width: 0;
  background: transparent;
  border: none;
  color: #f3f1ea;
  font-family: var(--font-data);
  font-size: 1rem;
  padding: 0.9rem 0;
}

.prompt input::placeholder { color: #7a8090; }
.prompt input:focus { outline: none; }
.prompt:focus-within { box-shadow: 3px 3px 0 var(--signal), 0 18px 34px rgba(255, 107, 53, 0.18); }

.prompt-cursor {
  width: 2px;
  height: 1.1rem;
  background: var(--signal);
  animation: blink 1s step-end infinite;
  flex-shrink: 0;
}

@keyframes blink { 50% { opacity: 0; } }

.prompt select {
  flex-shrink: 0;
  appearance: none;
  -webkit-appearance: none;
  background-color: #232733;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='10' height='6' viewBox='0 0 10 6'%3E%3Cpath d='M1 1l4 4 4-4' fill='none' stroke='%23ff6b35' stroke-width='1.5' stroke-linecap='round' stroke-linejoin='round'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 0.65rem center;
  color: #dcdfe6;
  border: 1px solid #383f4f;
  border-radius: calc(var(--radius) - 1px);
  font-family: var(--font-data);
  font-size: 0.8rem;
  padding: 0.55rem 1.6rem 0.55rem 0.7rem;
  cursor: pointer;
  transition: border-color 0.15s ease, background-color 0.15s ease;
}

.prompt select:hover { border-color: #4a5266; background-color: #262b39; }
.prompt select:focus { outline: none; border-color: var(--signal); }

.prompt select option {
  background: #232733;
  color: #dcdfe6;
}

.prompt input:disabled,
.prompt select:disabled,
.prompt button:disabled {
  opacity: 0.5;
  cursor: wait;
}

@media (max-width: 560px) {
  .prompt { flex-wrap: wrap; }
  .prompt select { order: 3; flex: 1 1 auto; }
  .prompt button { order: 4; flex: 1 1 auto; }
}

.prompt button {
  font-family: var(--font-ui);
  font-weight: 600;
  font-size: 0.92rem;
  background: var(--signal);
  color: #201005;
  border: none;
  border-radius: calc(var(--radius) - 1px);
  padding: 0.85rem 1.3rem;
  cursor: pointer;
  transition: filter 0.15s ease;
}

.prompt button:hover { filter: brightness(1.08); }
.prompt button:active { filter: brightness(0.95); }

.form-hint {
  font-family: var(--font-data);
  font-size: 0.82rem;
  color: var(--ink-soft);
  min-height: 1.4em;
  margin: 0.6rem 0 0;
}

.form-hint[data-error] { color: var(--down); }

.verify-panel {
  display: flex;
  align-items: center;
  gap: 0.9rem;
  margin-top: 1rem;
  padding: 0.9rem 1.1rem;
  background: var(--ink);
  border-radius: var(--radius);
  box-shadow: 3px 3px 0 var(--line-strong);
}

.verify-panel[hidden] { display: none; }

.verify-spinner {
  flex-shrink: 0;
  width: 22px;
  height: 22px;
  border-radius: 50%;
  border: 2.5px solid rgba(255, 107, 53, 0.25);
  border-top-color: var(--signal);
  animation: verify-spin 0.8s linear infinite;
}

@keyframes verify-spin { to { transform: rotate(360deg); } }

.verify-check {
  display: none;
  flex-shrink: 0;
  width: 22px;
  height: 22px;
  border-radius: 50%;
  background: var(--up);
  color: #fff;
  align-items: center;
  justify-content: center;
}

.verify-check svg { width: 14px; height: 14px; }

.verify-panel[data-state="done"] .verify-spinner { display: none; }
.verify-panel[data-state="done"] .verify-check { display: flex; }
.verify-panel[data-state="done"] .verify-title { color: var(--up); }

.verify-text { min-width: 0; }

.verify-title {
  margin: 0;
  font-size: 0.88rem;
  font-weight: 600;
  color: #f3f1ea;
}

.verify-sub {
  margin: 0.15rem 0 0;
  font-family: var(--font-data);
  font-size: 0.75rem;
  color: #8890a0;
}

@media (prefers-reduced-motion: reduce) {
  .verify-spinner { animation: none; }
}

.signals-panel {
  position: relative;
  background: var(--ink);
  padding: 4.5rem 1.5rem;
  overflow: hidden;
}

.signals-panel::before {
  content: '';
  position: absolute;
  inset: 0;
  background-image: linear-gradient(rgba(255, 255, 255, 0.04) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, 0.04) 1px, transparent 1px);
  background-size: 32px 32px;
  pointer-events: none;
}

.signals-panel-inner {
  position: relative;
  max-width: 960px;
  margin: 0 auto;
}

.signals-eyebrow {
  font-family: var(--font-data);
  font-size: 0.8rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--signal);
  margin: 0 0 2.5rem;
}

.signal-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 2.75rem 2rem;
}

@media (max-width: 760px) {
  .signal-grid { grid-template-columns: repeat(2, 1fr); gap: 2.25rem 1.5rem; }
}
@media (max-width: 480px) {
  .signal-grid { grid-template-columns: 1fr; }
}

.signal-item {
  display: grid;
  grid-template-columns: 48px 1fr;
  column-gap: 1rem;
  row-gap: 0;
  background: none;
  border: none;
  padding: 0;
  margin: 0;
  text-align: left;
  cursor: pointer;
  color: inherit;
  font-family: inherit;
}

.signal-item .signal-icon {
  grid-row: 1 / 3;
  width: 48px;
  height: 48px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 10px;
  background: rgba(255, 255, 255, 0.06);
  color: #f3f1ea;
  transition: background 0.15s ease, color 0.15s ease;
}

.signal-item .signal-icon svg { width: 25px; height: 25px; }

.signal-item:hover .signal-icon { background: var(--signal); color: #201005; }

.signal-item .signal-name {
  align-self: end;
  font-weight: 600;
  font-size: 1rem;
  color: #f3f1ea;
}

.signal-item .signal-name::after {
  content: attr(data-proto);
  margin-left: 0.55rem;
  font-family: var(--font-data);
  font-size: 0.68rem;
  font-weight: 400;
  color: #6f7688;
  letter-spacing: 0.02em;
}

.signal-item .signal-desc {
  align-self: start;
  margin-top: 0.3rem;
  font-size: 0.85rem;
  color: #9298a8;
  line-height: 1.45;
}

.loading-bar {
  max-width: 560px;
  margin: 1.5rem auto 0;
  height: 3px;
  border-radius: 2px;
  background: var(--neutral-bg);
  overflow: hidden;
}

.loading-bar[hidden] { display: none; }

.loading-bar-fill {
  height: 100%;
  width: 40%;
  border-radius: 2px;
  background: var(--signal);
  animation: loading-sweep 1s ease-in-out infinite;
}

@keyframes loading-sweep {
  0% { transform: translateX(-120%); }
  100% { transform: translateX(350%); }
}

main {
  display: flex;
  flex-direction: column;
  flex: 1;
  width: 100%;
  max-width: 960px;
  margin: 0 auto;
  padding: 2.5rem 1.5rem 2.5rem;
}

.empty-state {
  margin-top: auto;
  margin-bottom: auto;
  padding: 2rem 1.5rem;
  text-align: center;
  color: var(--line-strong);
}

.empty-state svg {
  width: 40px;
  height: 40px;
  margin: 0 auto 1rem;
}

.empty-state p {
  font-family: var(--font-data);
  font-size: 0.85rem;
  color: var(--ink-soft);
  max-width: 32ch;
  margin: 0 auto;
}

.empty-state[hidden] { display: none; }

.results { max-width: 560px; margin: 0 auto; }
.results[hidden] { display: none; }

.card {
  background: var(--paper-raised);
  border: 1px solid var(--line-strong);
  border-radius: var(--radius);
  box-shadow: 0 10px 24px rgba(20, 24, 31, 0.07), 0 1px 0 var(--line);
  animation: card-in 0.25s ease;
}

@keyframes card-in {
  from { opacity: 0; transform: translateY(4px); }
  to { opacity: 1; transform: translateY(0); }
}

.card-head {
  display: flex;
  align-items: center;
  gap: 0.55rem;
  padding: 0.85rem 1rem;
  border-bottom: 1px solid var(--line);
}

.card-head h2 {
  font-size: 0.95rem;
  font-weight: 600;
  margin: 0;
  letter-spacing: 0.01em;
}

.card-tag {
  margin-left: auto;
  font-family: var(--font-data);
  font-size: 0.72rem;
  color: var(--ink-soft);
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.card-body {
  padding: 1rem;
  font-size: 0.9rem;
}

.placeholder { color: var(--line-strong); font-family: var(--font-data); font-size: 0.85rem; margin: 0; }

.dot {
  display: inline-block;
  width: 9px;
  height: 9px;
  border-radius: 50%;
  background: var(--line-strong);
  flex-shrink: 0;
  box-shadow: 0 0 0 3px transparent;
  transition: background 0.2s ease, box-shadow 0.2s ease;
}

.dot[data-state="pending"] { background: var(--line-strong); }
.dot[data-state="ok"] { background: var(--up); box-shadow: 0 0 0 3px var(--up-bg); }
.dot[data-state="warn"] { background: var(--warn); box-shadow: 0 0 0 3px var(--warn-bg); }
.dot[data-state="fail"] { background: var(--down); box-shadow: 0 0 0 3px var(--down-bg); }
.dot[data-state="loading"] { background: var(--wire); animation: pulse 1s ease-in-out infinite; }

@keyframes pulse { 50% { opacity: 0.35; } }

.pill {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  font-family: var(--font-data);
  font-size: 0.78rem;
  font-weight: 500;
  letter-spacing: 0.03em;
  text-transform: uppercase;
  padding: 0.25rem 0.55rem;
  border-radius: 2px;
}

.pill-ok { background: var(--up-bg); color: var(--up); }
.pill-warn { background: var(--warn-bg); color: var(--warn); }
.pill-fail { background: var(--down-bg); color: var(--down); }
.pill-neutral { background: var(--neutral-bg); color: var(--ink-soft); }

.meter-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 0.6rem;
  flex-wrap: wrap;
  margin-bottom: 0.5rem;
}

.meter-detail {
  font-family: var(--font-data);
  font-size: 0.78rem;
  color: var(--ink-soft);
}

.meter-track {
  height: 8px;
  border-radius: 4px;
  background: var(--neutral-bg);
  overflow: hidden;
}

.meter-fill {
  height: 100%;
  border-radius: 4px;
  transition: width 0.3s ease;
}

.meter-fill-niedrig, .meter-fill-low { background: var(--up); }
.meter-fill-mittel, .meter-fill-medium { background: var(--warn); }
.meter-fill-hoch, .meter-fill-high { background: var(--down); }

.facts { display: grid; grid-template-columns: auto 1fr; gap: 0.35rem 0.9rem; margin: 0.75rem 0 0; }
.facts dt { color: var(--ink-soft); font-size: 0.82rem; }
.facts dd { margin: 0; font-family: var(--font-data); font-size: 0.85rem; word-break: break-word; }

.kv-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0 1.5rem;
}

@media (max-width: 480px) {
  .kv-grid { grid-template-columns: 1fr; }
}

.kv-row {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 0.75rem;
  padding: 0.4rem 0;
  border-bottom: 1px solid var(--line);
  font-size: 0.82rem;
}

.kv-label {
  color: var(--ink-soft);
  white-space: nowrap;
}

.kv-value {
  font-family: var(--font-data);
  font-size: 0.82rem;
  text-align: right;
  word-break: break-word;
}

.kv-value .muted { color: var(--line-strong); }

.chain { display: flex; flex-wrap: wrap; align-items: center; gap: 0.35rem; margin: 0 0 0.85rem; font-family: var(--font-data); font-size: 0.8rem; }
.chain-hop { background: var(--neutral-bg); border-radius: 2px; padding: 0.2rem 0.45rem; }
.chain-arrow { color: var(--line-strong); }

.readout { display: flex; align-items: baseline; gap: 0.6rem; margin: 0 0 0.4rem; }
.readout-value { font-family: var(--font-data); font-size: 2.1rem; font-weight: 600; line-height: 1; }
.readout-unit { color: var(--ink-soft); font-size: 0.85rem; }

details.raw { margin-top: 0.75rem; }
details.raw summary {
  cursor: pointer;
  font-family: var(--font-data);
  font-size: 0.78rem;
  color: var(--wire);
  list-style: none;
}
details.raw summary::-webkit-details-marker { display: none; }
details.raw summary::before { content: '▸ '; }
details.raw[open] summary::before { content: '▾ '; }
details.raw pre {
  margin: 0.5rem 0 0;
  padding: 0.75rem;
  background: var(--neutral-bg);
  border-radius: 2px;
  font-family: var(--font-data);
  font-size: 0.75rem;
  white-space: pre-wrap;
  word-break: break-word;
  max-height: 240px;
  overflow-y: auto;
}

.error-text { color: var(--down); font-family: var(--font-data); font-size: 0.85rem; margin: 0; }

.site-footer {
  text-align: center;
  padding: 2.5rem 1.5rem 3rem;
  margin-top: 2rem;
  border-top: 1px solid var(--line);
  color: var(--ink-soft);
  font-size: 0.8rem;
}

.site-footer p { margin: 0.3rem 0; }
.footer-brand { font-family: var(--font-data); color: var(--line-strong); }

.footer-links {
  margin: 0.7rem 0;
  font-family: var(--font-data);
  font-size: 0.78rem;
}

.footer-links a {
  color: var(--wire);
  text-decoration: none;
}

.footer-links a:hover { text-decoration: underline; }

.footer-sep {
  color: var(--line-strong);
  margin: 0 0.5rem;
}

.scanline {
  position: fixed;
  inset: 0;
  pointer-events: none;
  background: repeating-linear-gradient(
    to bottom,
    rgba(20, 24, 31, 0.018) 0px,
    rgba(20, 24, 31, 0.018) 1px,
    transparent 1px,
    transparent 3px
  );
  z-index: 50;
}

@media (prefers-reduced-motion: reduce) {
  .prompt-cursor { animation: none; opacity: 1; }
  .dot[data-state="loading"] { animation: none; }
  .trace-line { animation: none; opacity: 1; }
  .hero-trace::after { animation: none; transform: translateX(150%); }
}