:root {
  --bg: #ffffff;
  --ink: #000000;
  --muted: #4b4f58;
  --line: #e5e5e5;
  --surface: #f7f8fa;
  --surface-strong: #eef2f6;
  --signal: #0052cc;
  --signal-ink: #ffffff;
  --danger: #b3261e;
  --warning: #8a5a00;
  --ok: #0b6b35;
  --focus: #0052cc;
  --radius: 4px;
  --max: 1180px;
  --ease: cubic-bezier(.19, 1, .22, 1);
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  background: var(--bg);
  color: var(--ink);
  font-family: "Pretendard Variable", Pretendard, "Noto Sans KR", sans-serif;
  font-size: 16px;
  line-height: 1.6;
  text-rendering: geometricPrecision;
}

body::before {
  content: "";
  position: fixed;
  inset: 24px;
  pointer-events: none;
  border: 1px solid rgba(0, 0, 0, .04);
  border-radius: var(--radius);
  opacity: .9;
  z-index: -1;
}

a {
  color: inherit;
  text-decoration-thickness: 1px;
  text-underline-offset: 4px;
}

button,
a,
textarea {
  font: inherit;
}

button,
.button {
  min-height: 44px;
}

img {
  display: block;
  max-width: 100%;
  height: auto;
}

.skip-link {
  position: absolute;
  left: 16px;
  top: -80px;
  z-index: 20;
  background: var(--ink);
  color: var(--bg);
  padding: 10px 14px;
  border-radius: var(--radius);
}

.skip-link:focus {
  top: 16px;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 10;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  width: min(100%, var(--max));
  margin: 0 auto;
  padding: 16px 24px;
  background: rgba(255, 255, 255, .94);
  border-bottom: 1px solid var(--line);
  backdrop-filter: blur(12px);
}

.brand,
.top-nav {
  display: flex;
  align-items: center;
}

.brand {
  gap: 10px;
  font-weight: 700;
  min-height: 44px;
  text-decoration: none;
}

.brand-mark {
  display: inline-grid;
  place-items: center;
  width: 32px;
  height: 32px;
  border: 1px solid var(--ink);
  border-radius: var(--radius);
  background: var(--ink);
  color: var(--bg);
  font-weight: 700;
}

.top-nav {
  gap: 18px;
  font-size: 14px;
  color: var(--muted);
}

.top-nav a,
.site-footer a {
  display: inline-flex;
  align-items: center;
  min-height: 44px;
}

.top-nav a:hover,
.top-nav a:focus-visible {
  color: var(--ink);
}

.section-shell {
  width: min(100%, var(--max));
  margin: 0 auto;
  padding: 64px 24px;
}

.hero {
  display: grid;
  grid-template-columns: minmax(0, 7fr) minmax(300px, 5fr);
  gap: 48px;
  align-items: end;
  min-height: calc(100vh - 80px);
}

.hero-copy {
  padding: 48px 0 16px;
}

.eyebrow {
  margin: 0 0 18px;
  color: var(--signal);
  font-weight: 700;
}

h1,
h2,
h3,
p {
  text-wrap: pretty;
  word-break: keep-all;
}

h1,
h2,
h3 {
  margin: 0;
  line-height: 1.08;
  letter-spacing: -.03em;
  text-wrap: balance;
  overflow-wrap: normal;
}

h1 {
  max-width: 900px;
  font-size: clamp(42px, 7vw, 88px);
  font-weight: 700;
}

h2 {
  font-size: clamp(34px, 5vw, 62px);
  font-weight: 700;
}

h3 {
  font-size: 22px;
  font-weight: 700;
}

.hero-lead,
.section-heading p,
.checker-intro p,
.report-copy p,
.consult-copy p {
  max-width: 68ch;
  color: var(--muted);
}

.hero-lead {
  margin: 26px 0 0;
  font-size: 19px;
}

.hero-actions,
.tool-actions,
.report-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 28px;
}

.button,
button.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  border: 1px solid var(--ink);
  border-radius: var(--radius);
  padding: 11px 16px;
  background: var(--bg);
  color: var(--ink);
  font-weight: 700;
  text-decoration: none;
  cursor: pointer;
  transition: transform 180ms var(--ease), background-color 180ms var(--ease), color 180ms var(--ease), border-color 180ms var(--ease);
}

.button:hover,
.button:focus-visible {
  transform: translateY(-2px);
}

.button:active {
  transform: translateY(0);
}

.button.primary {
  background: var(--signal);
  border-color: var(--signal);
  color: var(--signal-ink);
}

.button.secondary {
  background: var(--ink);
  color: var(--bg);
}

.button.ghost {
  border-color: var(--line);
  color: var(--muted);
}

.button.ghost:hover,
.button.ghost:focus-visible {
  border-color: var(--ink);
  color: var(--ink);
}

button:disabled {
  cursor: not-allowed;
  opacity: .55;
  transform: none;
}

:focus-visible {
  outline: 3px solid var(--focus);
  outline-offset: 3px;
}

.trust-strip {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 1px;
  margin: 44px 0 0;
  border: 1px solid var(--line);
  background: var(--line);
}

.trust-strip div {
  padding: 18px;
  background: var(--bg);
}

.trust-strip dt,
.result-stats dt {
  color: var(--muted);
  font-size: 13px;
}

.trust-strip dd,
.result-stats dd {
  margin: 4px 0 0;
  font-size: 28px;
  line-height: 1;
  font-weight: 700;
  font-variant-numeric: tabular-nums;
}

.hero-visual {
  position: relative;
  margin: 0;
  border: 1px solid var(--ink);
  border-radius: var(--radius);
  overflow: hidden;
  transform: translateY(32px);
  background: var(--surface);
}

.hero-visual img,
.image-card img,
.consult-media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  filter: saturate(.76) contrast(1.08);
}

.hero-visual figcaption,
.consult-media span,
.image-card span {
  position: absolute;
  left: 12px;
  bottom: 12px;
  padding: 4px 6px;
  border: 1px solid rgba(255, 255, 255, .72);
  border-radius: var(--radius);
  background: rgba(0, 0, 0, .84);
  color: #ffffff;
  font-size: 12px;
}

.scan-line {
  position: absolute;
  left: -20%;
  top: 0;
  width: 12%;
  height: 100%;
  background: rgba(0, 82, 204, .42);
  animation: scanSweep 5.5s var(--ease) infinite;
  mix-blend-mode: screen;
}

.risk-map {
  padding-top: 96px;
}

.section-heading.narrow {
  max-width: 760px;
  margin-left: auto;
}

.risk-layout {
  display: grid;
  grid-template-columns: 1.2fr .9fr 1fr;
  grid-auto-rows: minmax(190px, auto);
  gap: 16px;
  margin-top: 40px;
}

.risk-card {
  position: relative;
  min-height: 190px;
  padding: 24px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--bg);
  overflow: hidden;
}

.risk-card::after {
  content: "";
  position: absolute;
  inset: auto 20px 20px auto;
  width: 36px;
  height: 36px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  transform: rotate(12deg);
}

.risk-card.tall {
  grid-row: span 2;
  background: var(--ink);
  color: var(--bg);
}

.risk-card.wide {
  grid-column: span 2;
  background: var(--surface);
}

.risk-card.image-card {
  min-height: 260px;
  padding: 0;
}

.risk-card.image-card::after {
  display: none;
}

.risk-index {
  display: inline-flex;
  margin-bottom: 34px;
  padding: 5px 8px;
  border: 1px solid currentColor;
  border-radius: var(--radius);
  font-size: 13px;
  font-weight: 700;
}

.risk-card p {
  margin: 14px 0 0;
  color: inherit;
}

.checker {
  padding-top: 96px;
}

.checker-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.25fr) minmax(320px, .75fr);
  gap: 16px;
  margin-top: 32px;
}

.input-panel,
.result-panel,
.findings-shell,
.report-box,
.report-copy,
.consult-copy {
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--bg);
}

.input-panel,
.result-panel,
.findings-shell {
  padding: 24px;
}

.panel-heading {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 16px;
}

.panel-heading p {
  margin: 8px 0 0;
  color: var(--muted);
}

.status-pill,
.score-badge,
.severity,
.category-chip {
  display: inline-flex;
  align-items: center;
  border: 1px solid currentColor;
  border-radius: var(--radius);
  padding: 5px 8px;
  font-size: 13px;
  font-weight: 700;
  white-space: nowrap;
}

.field-label {
  display: block;
  margin-top: 24px;
  font-weight: 700;
}

textarea {
  display: block;
  width: 100%;
  min-height: 440px;
  margin-top: 8px;
  padding: 16px;
  border: 1px solid var(--ink);
  border-radius: var(--radius);
  background: #ffffff;
  color: var(--ink);
  font-family: "SFMono-Regular", "Menlo", "Consolas", monospace;
  font-size: 14px;
  line-height: 1.5;
  resize: vertical;
}

.input-help {
  margin: 10px 0 0;
  color: var(--muted);
  font-size: 14px;
}

.score-badge {
  min-width: 58px;
  justify-content: center;
  color: var(--signal);
}

.score-meter {
  height: 12px;
  margin-top: 24px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  overflow: hidden;
  background: var(--surface);
}

.score-meter span {
  display: block;
  width: 0;
  height: 100%;
  background: var(--signal);
  transition: width 420ms var(--ease), background-color 180ms var(--ease);
}

.result-stats {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1px;
  margin: 24px 0 0;
  border: 1px solid var(--line);
  background: var(--line);
}

.result-stats div {
  padding: 16px;
  background: var(--bg);
}

.next-steps {
  margin-top: 24px;
  padding: 18px;
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--radius);
}

.next-steps p,
.next-steps ol {
  margin: 0;
}

.next-steps ol {
  padding-left: 20px;
}

.findings-shell {
  margin-top: 16px;
}

.findings-empty {
  margin-top: 20px;
  padding: 28px;
  border: 1px dashed var(--line);
  border-radius: var(--radius);
  color: var(--muted);
}

.findings-list {
  display: grid;
  gap: 12px;
  margin-top: 20px;
}

.finding {
  display: grid;
  grid-template-columns: 150px minmax(0, 1fr);
  gap: 16px;
  padding: 18px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--bg);
}

.finding.high {
  border-color: var(--danger);
}

.finding.medium {
  border-color: var(--warning);
}

.finding.low {
  border-color: var(--signal);
}

.finding-meta {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.finding h4 {
  margin: 0;
  font-size: 18px;
}

.finding p {
  margin: 8px 0 0;
}

.finding code {
  display: inline-block;
  margin-top: 10px;
  padding: 3px 6px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--surface);
  font-family: "SFMono-Regular", "Menlo", "Consolas", monospace;
  font-size: 13px;
  overflow-wrap: anywhere;
}

.severity.high {
  color: var(--danger);
}

.severity.medium {
  color: var(--warning);
}

.severity.low {
  color: var(--signal);
}

.report-guide,
.consult {
  display: grid;
  grid-template-columns: .95fr 1.05fr;
  gap: 16px;
  align-items: stretch;
}

.report-copy,
.consult-copy {
  padding: 32px;
}

.report-box {
  min-height: 360px;
  background: var(--ink);
  color: var(--bg);
  overflow: auto;
}

.report-box pre {
  margin: 0;
  padding: 24px;
  white-space: pre-wrap;
  word-break: keep-all;
  font-family: "SFMono-Regular", "Menlo", "Consolas", monospace;
  font-size: 14px;
  line-height: 1.65;
}

.consult {
  align-items: center;
}

.consult-media {
  position: relative;
  min-height: 420px;
  border: 1px solid var(--ink);
  border-radius: var(--radius);
  overflow: hidden;
  background: var(--surface);
}

.consult-media img {
  min-height: 420px;
}

.consult-copy {
  transform: translateX(-48px);
  background: var(--bg);
}

.site-footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  width: min(100%, var(--max));
  margin: 0 auto;
  padding: 28px 24px 48px;
  border-top: 1px solid var(--line);
  color: var(--muted);
}

.site-footer p {
  margin: 0;
}

.toast {
  position: fixed;
  left: 50%;
  bottom: 24px;
  z-index: 30;
  max-width: min(520px, calc(100vw - 32px));
  padding: 12px 16px;
  border: 1px solid var(--ink);
  border-radius: var(--radius);
  background: var(--ink);
  color: var(--bg);
  transform: translate(-50%, 120px);
  transition: transform 220ms var(--ease);
}

.toast.show {
  transform: translate(-50%, 0);
}

.reveal-up,
.reveal-scale {
  animation: revealUp 620ms var(--ease) both;
}

.reveal-scale {
  animation-name: revealScale;
}

.delay-1 { animation-delay: 90ms; }
.delay-2 { animation-delay: 160ms; }
.delay-3 { animation-delay: 230ms; }
.delay-4 { animation-delay: 300ms; }

@keyframes revealUp {
  from {
    opacity: .001;
    transform: translateY(18px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@keyframes revealScale {
  from {
    opacity: .001;
    transform: translateY(24px) scale(.98);
  }
  to {
    opacity: 1;
    transform: translateY(32px) scale(1);
  }
}

@keyframes scanSweep {
  0% { transform: translateX(-180%) skewX(-8deg); opacity: 0; }
  14% { opacity: 1; }
  48% { opacity: .85; }
  74% { transform: translateX(980%) skewX(-8deg); opacity: 0; }
  100% { transform: translateX(980%) skewX(-8deg); opacity: 0; }
}

@media (max-width: 920px) {
  .site-header,
  .site-footer {
    align-items: flex-start;
    flex-direction: column;
  }

  .top-nav {
    flex-wrap: wrap;
  }

  .hero,
  .checker-grid,
  .report-guide,
  .consult {
    grid-template-columns: 1fr;
  }

  .hero {
    min-height: auto;
  }

  .hero-visual,
  .consult-copy {
    transform: none;
  }

  @keyframes revealScale {
    from { opacity: .001; transform: translateY(18px) scale(.99); }
    to { opacity: 1; transform: translateY(0) scale(1); }
  }

  .risk-layout {
    grid-template-columns: 1fr 1fr;
  }

  .risk-card.tall,
  .risk-card.wide {
    grid-row: auto;
    grid-column: span 2;
  }
}

@media (max-width: 640px) {
  .section-shell {
    padding: 48px 16px;
  }

  .site-header,
  .site-footer {
    padding-left: 16px;
    padding-right: 16px;
  }

  h1 {
    font-size: 40px;
  }

  h2 {
    font-size: 32px;
  }

  .trust-strip,
  .result-stats,
  .risk-layout,
  .finding {
    grid-template-columns: 1fr;
  }

  .risk-card.tall,
  .risk-card.wide {
    grid-column: auto;
  }

  textarea {
    min-height: 340px;
  }

  .panel-heading {
    flex-direction: column;
  }
}

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation-duration: 1ms !important;
    animation-iteration-count: 1 !important;
    scroll-behavior: auto !important;
    transition-duration: 1ms !important;
  }

  .scan-line {
    display: none;
  }
}