:root {
  --bg: #F6F8F5;
  --surface: #FFFFFF;
  --surface-2: #F1F6F3;
  --border: #DDE5E2;
  --text: #0B1214;
  --muted: #5C6A6E;
  --accent: #0F766E;
  --accent-2: #31D6A3;
  --warn: #B87514;
  --danger: #B23B4A;
  --radius: 8px;
  --shadow: 0 18px 45px rgba(11,18,20,.08);
}

* { box-sizing: border-box; }

body {
  margin: 0;
  min-width: 320px;
  color: var(--text);
  background: linear-gradient(180deg, rgba(49,214,163,.1), rgba(246,248,245,0) 330px), var(--bg);
  font: 16px/1.55 Inter, -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
}

a { color: var(--accent); text-decoration: none; }
a:hover { text-decoration: underline; }

.topbar {
  position: sticky;
  top: 0;
  z-index: 10;
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 14px 24px;
  background: rgba(11,18,20,.98);
  border-bottom: 1px solid rgba(221,229,226,.13);
}

.brand {
  display: inline-flex;
  align-items: center;
  color: #fff;
  font-weight: 800;
}

.brand:hover { text-decoration: none; }
.brand img {
  display: block;
  width: min(340px, 58vw);
  height: auto;
  object-fit: contain;
}

.account {
  display: flex;
  align-items: center;
  gap: 1rem;
  margin-left: auto;
  color: #DDE5E2;
  font-size: .9rem;
}

.account form { margin: 0; }
.link-button { border: 0; background: none; color: var(--accent-2); padding: 0; cursor: pointer; font: inherit; }

.container { max-width: 920px; margin: 0 auto; padding: 28px 24px 64px; }

.panel, .auth-card, .tool-form, .result, .history-row, .card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  box-shadow: 0 1px 0 rgba(11,18,20,.035);
}

.panel, .auth-card { padding: 1.25rem; margin: 1.25rem 0; }
.auth-card { max-width: 430px; margin: 4rem auto; box-shadow: var(--shadow); }
.auth-card h1 { margin: 0 0 .2rem; font-size: 2rem; line-height: 1.08; }
.auth-card p, .hero p, .module-head p, .card p, .hint, .raw summary, .foot { color: var(--muted); }

.inline-form { display: grid; grid-template-columns: repeat(auto-fit,minmax(180px,1fr)); gap: 1rem; align-items: end; }
label { display: flex; flex-direction: column; gap: .4rem; color: #314043; font-weight: 700; }
input, select, textarea {
  width: 100%;
  padding: .72rem .78rem;
  border: 1px solid #CBD8D4;
  border-radius: var(--radius);
  background: #fff;
  color: var(--text);
  font: inherit;
}
input:focus, textarea:focus, select:focus {
  outline: none;
  border-color: var(--accent);
  box-shadow: 0 0 0 3px rgba(49,214,163,.18);
}
.check { flex-direction: row; }

.btn {
  border: 1px solid #0B1214;
  border-radius: var(--radius);
  padding: 11px 22px;
  background: #0B1214;
  color: #fff;
  font: inherit;
  font-weight: 800;
  cursor: pointer;
}
.btn:hover { background: var(--accent); border-color: var(--accent); }
.btn:disabled { opacity: .6; cursor: progress; }

.alert { padding: 12px 16px; border-radius: var(--radius); margin: 16px 0; }
.alert.error { background: #FCECEF; border: 1px solid var(--danger); color: var(--danger); }

.hero h1 { font-size: 1.9rem; margin: .2em 0 .3em; }
.cluster { font-size: .8rem; text-transform: uppercase; letter-spacing: .08em; color: var(--accent); margin: 34px 0 12px; font-weight: 800; }
.grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(240px, 1fr)); gap: 16px; }
.card { display: block; padding: 18px; color: var(--text); transition: transform .12s ease, border-color .12s ease; }
.card:hover { transform: translateY(-2px); border-color: var(--accent); text-decoration: none; }
.card-icon { font-size: 1.6rem; }
.card h3 { margin: 8px 0 6px; font-size: 1.05rem; }

.back { display: inline-block; margin-bottom: 12px; color: var(--muted); }
.module-head h1 { margin: .1em 0 .3em; }
.cluster-tag { display: inline-block; font-size: .72rem; text-transform: uppercase; letter-spacing: .06em; color: var(--accent); background: #E9F8F3; padding: 3px 9px; border-radius: 999px; }
.tool-form, .result { padding: 20px; margin: 18px 0; box-shadow: var(--shadow); }
.field { display: block; margin-bottom: 16px; }
.field-label { display: block; font-weight: 700; margin-bottom: 6px; font-size: .92rem; }
.field-label em { color: var(--muted); font-weight: 400; font-style: normal; }
textarea { resize: vertical; }
.hint { display: block; font-size: .8rem; margin-top: 5px; }

.history { display: grid; gap: .5rem; }
.history-row { display: flex; align-items: center; gap: 1rem; justify-content: space-between; padding: .85rem; color: inherit; }
.progress { height: 10px; background: #E4EBE8; border-radius: 99px; overflow: hidden; }
.progress span { display: block; height: 100%; background: linear-gradient(90deg, var(--accent), var(--accent-2)); }
.score-grid { display: flex; gap: 1rem; flex-wrap: wrap; }
.score-card { background: var(--surface-2); padding: 1rem 1.5rem; border-radius: var(--radius); }
.score-card strong { display: block; font-size: 2rem; }
.finding { border-left: 4px solid var(--border); padding: .5rem 1rem; margin: 1rem 0; }
.finding.warning { border-color: var(--warn); }
.finding.critical { border-color: var(--danger); }
.finding.positive { border-color: var(--accent); }
.row-form { display: flex; gap: .5rem; align-items: center; }
.row-form input { max-width: 230px; }

.result-head { display: flex; align-items: center; justify-content: space-between; gap: 16px; flex-wrap: wrap; }
.result-head h2 { margin: 0; }
.score { display: flex; align-items: baseline; gap: 6px; }
.score-num { font-size: 2rem; font-weight: 800; color: var(--accent); }
.score-max { color: var(--muted); }
.score-label { margin-left: 8px; font-size: .8rem; padding: 3px 10px; border-radius: 999px; background: #E9F8F3; color: var(--accent); align-self: center; }
.summary { font-size: 1.05rem; margin: 14px 0 6px; }
.section { border-top: 1px solid var(--border); padding-top: 14px; margin-top: 14px; }
.section h3 { margin: 0 0 8px; font-size: 1.02rem; }
.section ul { margin: 0; padding-left: 20px; }
.section li { margin: 4px 0; }
.raw { margin-top: 18px; }
.raw summary { cursor: pointer; font-size: .85rem; }
.raw pre { background: #0B1214; color: #DDE5E2; border-radius: var(--radius); padding: 14px; overflow-x: auto; font-size: .82rem; margin-top: 10px; }
.foot { text-align: center; font-size: .8rem; padding: 24px; }

@media (max-width: 650px) {
  .topbar { align-items: flex-start; flex-direction: column; }
  .account { margin-left: 0; flex-wrap: wrap; }
  .container { padding: 22px 14px 54px; }
}