:root {
  --bg: #f8fafc;
  --surface: #ffffff;
  --text: #1f2937;
  --muted: #64748b;
  --border: #dbe3ef;
  --brand: #0f766e;
  --brand-soft: #e3f7f4;
  --danger: #b91c1c;
  --ok: #15803d;
  --warn: #c2410c;
  --radius: 14px;
  --shadow: 0 10px 24px rgba(15, 23, 42, 0.08);
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  font-family: "Trebuchet MS", "Segoe UI", Tahoma, sans-serif;
  background:
    radial-gradient(circle at 8% 4%, #e5f1ff 0, transparent 28%),
    radial-gradient(circle at 90% 0%, #e7f8ef 0, transparent 25%),
    var(--bg);
  color: var(--text);
  line-height: 1.5;
}

a {
  color: inherit;
  text-decoration: none;
}

.container {
  width: min(980px, 100%);
  margin: 0 auto;
  padding: 0 0.85rem;
}

.stack-lg > * + * {
  margin-top: 1rem;
}

.stack-md > * + * {
  margin-top: 0.75rem;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 5;
  backdrop-filter: blur(8px);
  background: rgba(248, 250, 252, 0.85);
  border-bottom: 1px solid var(--border);
}

.nav-wrap {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 0.6rem;
  min-height: 3.4rem;
}

.brand {
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--brand);
}

.site-nav {
  display: flex;
  align-items: center;
  gap: 0.4rem;
}

.site-nav a {
  padding: 0.42rem 0.7rem;
  border-radius: 999px;
  border: 1px solid transparent;
  color: var(--muted);
  font-weight: 600;
  font-size: 0.95rem;
}

.site-nav a.is-active {
  color: #0f172a;
  background: var(--brand-soft);
  border-color: #96e3d9;
}

main {
  padding: 0.85rem 0 1.25rem;
}

.card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  padding: 1rem;
}

.hero h1 {
  margin: 0;
  font-size: clamp(1.3rem, 4vw, 2rem);
}

.hero p {
  margin: 0.45rem 0 0;
  color: var(--muted);
}

h2,
h3 {
  margin: 0;
}

.tool-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 0.7rem;
}

.tool-card {
  display: block;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  padding: 0.9rem;
}

.tool-card h3 {
  margin: 0;
}

.tool-card p {
  margin: 0.35rem 0 0.7rem;
  color: var(--muted);
}

.tool-cta {
  display: inline-block;
  padding: 0.25rem 0.6rem;
  border-radius: 999px;
  border: 1px solid #a6d9d3;
  background: var(--brand-soft);
  font-size: 0.83rem;
  font-weight: 700;
}

.tool-card.is-disabled {
  opacity: 0.68;
  box-shadow: none;
}

.site-footer {
  border-top: 1px solid var(--border);
  background: rgba(255, 255, 255, 0.75);
}

.footer-line {
  min-height: 3rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 0.5rem;
  color: var(--muted);
}

.footer-links {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  flex-wrap: wrap;
}

.footer-links a {
  color: var(--muted);
  text-decoration: underline;
  text-underline-offset: 2px;
}

.footer-links a:hover {
  color: var(--text);
}

.form-grid {
  display: grid;
  gap: 0.7rem;
  grid-template-columns: 1fr;
}

.field {
  display: grid;
  gap: 0.35rem;
}

label {
  font-weight: 600;
  font-size: 0.95rem;
}

input,
select,
button {
  font: inherit;
}

input,
select {
  width: 100%;
  border: 1px solid #cdd8e6;
  border-radius: 12px;
  background: #fff;
  padding: 0.62rem 0.72rem;
  color: inherit;
}

button {
  border: 1px solid transparent;
  border-radius: 12px;
  padding: 0.62rem 0.82rem;
  font-weight: 700;
  cursor: pointer;
  background: #e7eef9;
  color: #0f172a;
}

button:hover {
  background: #d6e5f7;
}

button:focus,
input:focus,
select:focus,
a:focus {
  outline: 2px solid #7dd3fc;
  outline-offset: 2px;
}

.btn-primary {
  background: #0f766e;
  color: #fff;
}

.btn-primary:hover {
  background: #0b5f5a;
}

.btn-row {
  display: flex;
  flex-wrap: wrap;
  gap: 0.45rem;
}

.status {
  margin: 0.55rem 0 0;
  color: var(--muted);
  font-size: 0.95rem;
}

.status.is-error {
  color: var(--danger);
}

.metrics {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 0.6rem;
}

.metric {
  border: 1px solid var(--border);
  border-radius: 12px;
  background: #fbfdff;
  padding: 0.55rem;
}

.metric .label {
  font-size: 0.85rem;
  color: var(--muted);
}

.metric .value {
  margin: 0.12rem 0 0;
  font-weight: 700;
}

.badge {
  display: inline-block;
  border: 1px solid currentColor;
  border-radius: 999px;
  font-size: 0.82rem;
  padding: 0.18rem 0.5rem;
  font-weight: 700;
}

.badge.cold {
  color: var(--danger);
  background: #fdecec;
}

.badge.normal {
  color: var(--ok);
  background: #e8f9ee;
}

.badge.hot {
  color: var(--warn);
  background: #fff2e8;
}

.result-list {
  list-style: none;
  margin: 0.5rem 0 0;
  padding: 0;
  display: grid;
  gap: 0.42rem;
}

.result-list li {
  border: 1px solid var(--border);
  border-radius: 12px;
  background: #fff;
  padding: 0.45rem 0.6rem;
}

.chips {
  display: flex;
  flex-wrap: wrap;
  gap: 0.42rem;
  margin-top: 0.45rem;
}

.chip {
  display: inline-block;
  border: 1px solid #cfe0f5;
  border-radius: 999px;
  background: #eef5ff;
  padding: 0.25rem 0.55rem;
  font-size: 0.85rem;
}

.disclaimer {
  color: var(--muted);
  font-size: 0.88rem;
  margin: 0.7rem 0 0;
}

.legal-page {
  max-width: 760px;
}

.legal-card h1 {
  margin: 0;
  font-size: clamp(1.4rem, 4vw, 2rem);
}

.legal-card h2 {
  margin: 1.2rem 0 0.35rem;
  font-size: 1.02rem;
}

.legal-card p {
  margin: 0;
  color: #334155;
}

.legal-card a {
  text-decoration: underline;
  text-underline-offset: 2px;
}

.affiliate-hinweis {
  border: 1px solid var(--border);
  border-radius: 12px;
  background: #fbfdff;
  padding: 0.85rem;
  color: #334155;
}

.affiliate-hinweis p {
  margin: 0;
}

@media (min-width: 760px) {
  .container {
    padding: 0 1.1rem;
  }

  .tool-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .form-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .metrics {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
}