/* AI JobShield styles. Dark security-console look, no inline styles needed (works with a strict CSP). */

:root {
  --bg: #0d1b2a;
  --bg-alt: #0a1623;
  --surface: #14283d;
  --surface-2: #193150;
  --line: #2a4967;
  --text: #e8eff6;
  --muted: #a3b7cb;
  --accent: #6cb6ff;
  --accent-ink: #06121f;
  --low: #3ecf8e;
  --medium: #f5c451;
  --high: #ff8f4d;
  --critical: #ff5468;
  --sans: 'IBM Plex Sans', system-ui, -apple-system, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
  --mono: 'IBM Plex Mono', ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
  --maxw: 1120px;
}

*, *::before, *::after { box-sizing: border-box; }
[hidden] { display: none !important; }

html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font: 400 1rem/1.6 var(--sans);
  -webkit-font-smoothing: antialiased;
}

h1, h2, h3, h4, p { margin: 0; }
a { color: var(--accent); }

:focus-visible {
  outline: 3px solid #a8d4ff;
  outline-offset: 3px;
  border-radius: 4px;
}

.visually-hidden {
  position: absolute !important;
  width: 1px; height: 1px;
  margin: -1px; padding: 0; border: 0;
  overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap;
}

.skip-link {
  position: absolute;
  left: 12px; top: -60px;
  z-index: 100;
  padding: 10px 16px;
  background: var(--accent);
  color: var(--accent-ink);
  font-weight: 600;
  border-radius: 8px;
  text-decoration: none;
}
.skip-link:focus { top: 12px; }

.container { width: min(100% - 40px, var(--maxw)); margin-inline: auto; }
.narrow { max-width: 760px; }

section { scroll-margin-top: 72px; }

/* ---------- Header ---------- */

.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  background: rgba(13, 27, 42, 0.94);
  border-bottom: 1px solid var(--line);
  -webkit-backdrop-filter: blur(8px);
  backdrop-filter: blur(8px);
}

.header-row {
  display: flex;
  align-items: center;
  gap: 24px;
  min-height: 64px;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  color: var(--text);
  text-decoration: none;
  font-weight: 700;
  font-size: 1.1rem;
  letter-spacing: -0.01em;
}
.brand-mark { width: 28px; height: 28px; color: var(--accent); flex: none; }

.nav { display: flex; gap: 6px; margin-left: 8px; }
.nav a {
  color: var(--muted);
  text-decoration: none;
  font-weight: 500;
  padding: 8px 12px;
  border-radius: 8px;
}
.nav a:hover { color: var(--text); background: var(--surface); }

.engine-status {
  margin-left: auto;
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 5px 12px;
  border: 1px solid var(--line);
  border-radius: 999px;
  font-size: 0.8125rem;
  color: var(--muted);
}
.status-dot { width: 8px; height: 8px; border-radius: 50%; background: var(--low); }
.engine-status[data-mode="ai"] .status-dot { background: var(--accent); }

/* ---------- Buttons ---------- */

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  min-height: 46px;
  padding: 0 22px;
  border-radius: 10px;
  border: 1px solid transparent;
  font: 600 1rem/1 var(--sans);
  text-decoration: none;
  cursor: pointer;
  transition: background-color 0.15s ease, border-color 0.15s ease, color 0.15s ease;
}
.btn-primary { background: var(--accent); color: var(--accent-ink); }
.btn-primary:hover { background: #8cc6ff; }
.btn-secondary { background: transparent; color: var(--text); border-color: var(--line); }
.btn-secondary:hover { background: var(--surface); border-color: var(--accent); }
.btn:disabled { opacity: 0.65; cursor: not-allowed; }

.spinner {
  display: none;
  width: 16px; height: 16px;
  border: 2px solid rgba(6, 18, 31, 0.3);
  border-top-color: var(--accent-ink);
  border-radius: 50%;
  animation: spin 0.7s linear infinite;
}
[aria-busy="true"] > .spinner { display: inline-block; }
@keyframes spin { to { transform: rotate(360deg); } }

.chip-btn {
  min-height: 40px;
  padding: 0 16px;
  border: 1px solid var(--line);
  border-radius: 999px;
  background: transparent;
  color: var(--text);
  font: 500 0.9375rem/1 var(--sans);
  cursor: pointer;
}
.chip-btn:hover { border-color: var(--accent); background: var(--surface); }

/* ---------- Hero ---------- */

.hero {
  padding: clamp(40px, 7vw, 88px) 0 clamp(40px, 6vw, 72px);
  background-image:
    linear-gradient(to right, rgba(108, 182, 255, 0.05) 1px, transparent 1px),
    linear-gradient(to bottom, rgba(108, 182, 255, 0.05) 1px, transparent 1px);
  background-size: 44px 44px;
  border-bottom: 1px solid var(--line);
}

.hero-grid {
  display: grid;
  grid-template-columns: 1.05fr 0.95fr;
  gap: clamp(28px, 5vw, 64px);
  align-items: center;
}

h1 {
  font-size: clamp(2.1rem, 4.8vw, 3.5rem);
  font-weight: 700;
  line-height: 1.1;
  letter-spacing: -0.025em;
}

.lead {
  margin-top: 20px;
  max-width: 34em;
  font-size: 1.1875rem;
  color: var(--muted);
}

.hero-actions { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 32px; }

.demo {
  position: relative;
  margin: 0;
  padding: 22px;
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: 16px;
  overflow: hidden;
}
.demo-caption { font-size: 0.8125rem; color: var(--muted); margin-bottom: 14px; }
.demo-message {
  font-family: var(--mono);
  font-size: 0.9rem;
  line-height: 1.75;
  color: var(--text);
}

.demo-result {
  margin-top: 20px;
  padding-top: 16px;
  border-top: 1px solid var(--line);
  display: flex;
  flex-wrap: wrap;
  gap: 14px 24px;
  align-items: flex-start;
}
.demo-score-block { display: flex; align-items: center; gap: 12px; }
.demo-score { font-size: 1.5rem; font-weight: 700; font-variant-numeric: tabular-nums; }
.demo-flags {
  list-style: none;
  margin: 0; padding: 0;
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}
.demo-flags li {
  padding: 3px 10px;
  border-radius: 6px;
  font-size: 0.8125rem;
  background: var(--bg);
  border: 1px solid var(--line);
  border-left-width: 3px;
}
.demo-flags li[data-sev="high"] { border-left-color: var(--critical); }
.demo-flags li[data-sev="medium"] { border-left-color: var(--high); }
.demo-flags li[data-sev="low"] { border-left-color: var(--medium); }

/* One-time scan sweep over the example message */
.scan::after {
  content: "";
  position: absolute;
  left: 0; right: 0; top: 0;
  height: 2px;
  background: var(--accent);
  opacity: 0;
  animation: sweep 2.2s ease-out 0.5s 1 both;
  pointer-events: none;
}
@keyframes sweep {
  0% { transform: translateY(0); opacity: 0.9; }
  90% { opacity: 0.9; }
  100% { transform: translateY(420px); opacity: 0; }
}

/* ---------- Highlights ---------- */

mark.hit {
  background: rgba(255, 84, 104, 0.2);
  color: inherit;
  border-bottom: 2px solid var(--critical);
  border-radius: 2px;
  padding: 0 2px;
}
mark.hit[data-sev="medium"] { background: rgba(255, 143, 77, 0.2); border-bottom-color: var(--high); }
mark.hit[data-sev="low"] { background: rgba(245, 196, 81, 0.2); border-bottom-color: var(--medium); }

/* ---------- Badge ---------- */

.badge {
  display: inline-block;
  padding: 3px 12px;
  border-radius: 999px;
  font-size: 0.8125rem;
  font-weight: 700;
  letter-spacing: 0.06em;
  color: var(--accent-ink);
  background: var(--muted);
}
.badge[data-level="LOW"] { background: var(--low); }
.badge[data-level="MEDIUM"] { background: var(--medium); }
.badge[data-level="HIGH"] { background: var(--high); }
.badge[data-level="CRITICAL"] { background: var(--critical); }
.badge-lg { padding: 6px 18px; font-size: 1rem; }

/* ---------- Sections ---------- */

h2 {
  font-size: clamp(1.5rem, 3.2vw, 2.1rem);
  font-weight: 700;
  line-height: 1.2;
  letter-spacing: -0.015em;
}

.problem { padding: clamp(48px, 7vw, 88px) 0 clamp(24px, 4vw, 40px); }
.problem p { margin-top: 16px; color: var(--muted); font-size: 1.0625rem; max-width: 40em; }

.features { padding: clamp(24px, 4vw, 40px) 0 clamp(48px, 7vw, 88px); }
.card-grid {
  margin-top: 28px;
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
}
.card {
  padding: 24px;
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: 14px;
}
.feature h3 { margin-top: 16px; font-size: 1.125rem; font-weight: 600; }
.feature p { margin-top: 8px; color: var(--muted); }
.icon { width: 32px; height: 32px; color: var(--accent); }

/* ---------- Analyzer ---------- */

.analyzer {
  padding: clamp(48px, 7vw, 80px) 0;
  background: var(--bg-alt);
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}
.analyzer .container { margin-inline: auto; }
.section-intro { margin-top: 8px; color: var(--muted); }

.analyzer-form { margin-top: 28px; }
.field-label { display: block; margin-bottom: 8px; font-weight: 600; }

textarea {
  display: block;
  width: 100%;
  min-height: 260px;
  padding: 16px;
  resize: vertical;
  background: var(--surface);
  color: var(--text);
  border: 1px solid var(--line);
  border-radius: 12px;
  font: 400 0.9375rem/1.65 var(--mono);
}
textarea::placeholder { color: #7f96ac; }
textarea:hover { border-color: #3a5f82; }
textarea:focus-visible { outline-offset: 2px; border-color: var(--accent); }
textarea[aria-invalid="true"] { border-color: var(--critical); }

.field-meta {
  display: flex;
  justify-content: space-between;
  gap: 16px;
  margin-top: 8px;
  min-height: 24px;
}
.form-error { color: #ff8a98; font-weight: 500; }
.char-count {
  margin-left: auto;
  color: var(--muted);
  font: 400 0.8125rem/1.6 var(--mono);
  font-variant-numeric: tabular-nums;
}
.char-count.near-limit { color: var(--medium); }

.samples { display: flex; flex-wrap: wrap; align-items: center; gap: 10px; margin-top: 16px; }
.samples-label { color: var(--muted); margin-right: 4px; }

.form-actions { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 24px; }
.note { margin-top: 20px; color: var(--muted); font-size: 0.875rem; max-width: 46em; }

/* ---------- Results ---------- */

.results { padding: clamp(40px, 6vw, 72px) 0 clamp(56px, 7vw, 88px); outline: none; }
.results { --risk: var(--low); }
.results[data-level="MEDIUM"] { --risk: var(--medium); }
.results[data-level="HIGH"] { --risk: var(--high); }
.results[data-level="CRITICAL"] { --risk: var(--critical); }
.results .badge { background: var(--risk); }

.results-title { margin-bottom: 24px; }

.verdict {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: clamp(20px, 4vw, 44px);
  align-items: center;
  padding: clamp(20px, 3vw, 32px);
  background: var(--surface);
  border: 1px solid var(--line);
  border-left: 5px solid var(--risk);
  border-radius: 16px;
}

.score-ring { position: relative; width: 168px; height: 168px; }
.score-ring svg { width: 100%; height: 100%; transform: rotate(-90deg); }
.ring-track, .ring-value { fill: none; stroke-width: 11; }
.ring-track { stroke: var(--bg); }
.ring-value {
  stroke: var(--risk);
  stroke-linecap: round;
  stroke-dasharray: 377;
  stroke-dashoffset: 377;
  transition: stroke-dashoffset 1s cubic-bezier(0.2, 0.7, 0.2, 1);
}
.score-text {
  position: absolute;
  inset: 0;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
}
.score-number { font-size: 3.25rem; font-weight: 700; line-height: 1; font-variant-numeric: tabular-nums; }
.score-max { margin-top: 4px; font-size: 0.8125rem; color: var(--muted); }

.verdict-label { color: var(--muted); font-size: 0.875rem; }
.verdict-body .badge-lg { margin-top: 4px; }
.verdict-summary { margin-top: 14px; font-size: 1.125rem; max-width: 36em; }
.verdict-meta { margin-top: 10px; color: var(--muted); font-size: 0.9375rem; }

.block-title { margin: 40px 0 16px; font-size: 1.25rem; font-weight: 600; letter-spacing: -0.01em; }

.flag-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(310px, 1fr)); gap: 16px; }
.flag-card {
  padding: 20px;
  background: var(--surface);
  border: 1px solid var(--line);
  border-left: 4px solid var(--critical);
  border-radius: 12px;
}
.flag-card[data-sev="medium"] { border-left-color: var(--high); }
.flag-card[data-sev="low"] { border-left-color: var(--medium); }

.flag-head { display: flex; justify-content: space-between; align-items: baseline; gap: 12px; font-size: 0.8125rem; color: var(--muted); }
.flag-points, .flag-tag { font-family: var(--mono); color: var(--text); }
.flag-title { margin-top: 6px; font-size: 1.0625rem; font-weight: 600; line-height: 1.35; }
.flag-text { margin-top: 8px; color: var(--muted); font-size: 0.9375rem; }
.flag-more { margin-top: 10px; font-size: 0.8125rem; color: var(--muted); }

.evidence {
  margin: 14px 0 0;
  padding: 10px 12px;
  background: var(--bg);
  border: 1px solid var(--line);
  border-radius: 8px;
  font: 400 0.8125rem/1.65 var(--mono);
  color: #c9d7e5;
  overflow-wrap: anywhere;
}

.empty-state {
  padding: 20px;
  background: var(--surface);
  border: 1px solid var(--line);
  border-left: 4px solid var(--low);
  border-radius: 12px;
  max-width: 46em;
}

.positive-list, .reco-list { list-style: none; margin: 0; padding: 0; display: grid; gap: 10px; max-width: 52em; }
.positive-list li {
  display: grid;
  gap: 2px;
  padding: 14px 16px;
  background: var(--surface);
  border: 1px solid var(--line);
  border-left: 4px solid var(--low);
  border-radius: 10px;
}
.positive-list span { color: var(--muted); font-size: 0.9375rem; }

.reco-list li {
  position: relative;
  padding: 14px 16px 14px 48px;
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: 10px;
}
.reco-list li::before {
  content: "";
  position: absolute;
  left: 21px; top: 17px;
  width: 7px; height: 13px;
  border: solid var(--accent);
  border-width: 0 2.5px 2.5px 0;
  transform: rotate(45deg);
}

.annotated-wrap { margin-top: 36px; max-width: 52em; }
.annotated-wrap summary { cursor: pointer; font-weight: 600; padding: 8px 0; }
.annotated {
  margin-top: 8px;
  max-height: 340px;
  overflow: auto;
  padding: 16px;
  background: var(--bg-alt);
  border: 1px solid var(--line);
  border-radius: 10px;
  font: 400 0.875rem/1.75 var(--mono);
  white-space: pre-wrap;
  overflow-wrap: anywhere;
}

.disclaimer {
  margin: 36px 0 24px;
  padding: 14px 16px;
  max-width: 52em;
  border: 1px dashed var(--line);
  border-radius: 10px;
  color: var(--muted);
  font-size: 0.9375rem;
}

/* ---------- Footer ---------- */

.site-footer { padding: 36px 0 44px; color: var(--muted); font-size: 0.9375rem; }
.footer-row { display: flex; flex-wrap: wrap; justify-content: space-between; gap: 8px 32px; }
.footer-brand { color: var(--text); font-weight: 700; }

/* ---------- Responsive ---------- */

@media (max-width: 900px) {
  .hero-grid { grid-template-columns: 1fr; }
  .card-grid { grid-template-columns: 1fr; }
}

@media (max-width: 680px) {
  .engine-status { display: none; }
  .nav { margin-left: auto; }
  .verdict { grid-template-columns: 1fr; justify-items: start; }
  .score-ring { width: 148px; height: 148px; }
  .score-number { font-size: 2.75rem; }
  .flag-grid { grid-template-columns: 1fr; }
  .btn { flex: 1 1 auto; }
  .hero-actions .btn, .form-actions .btn { width: 100%; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  .scan::after { animation: none; display: none; }
  .ring-value { transition: none; }
  .spinner { animation-duration: 2s; }
}