:root {
  --color-bg: #ffffff;
  --color-bg-soft: #f5f6fa;
  --color-text: #16181d;
  --color-text-muted: #5a5f6b;
  --color-ink: #0c0e13;
  --color-accent: #3a5ddb;
  --color-accent-dark: #2944a8;
  --color-border: #e6e8ef;
  --color-good: #1d9a6c;
  --color-mid: #d99a1f;
  --color-bad: #d6432f;
  --font-base: -apple-system, BlinkMacSystemFont, "Segoe UI", "Apple SD Gothic Neo", "Noto Sans KR", sans-serif;
  --font-mono: "SF Mono", "Consolas", monospace;
}
* { box-sizing: border-box; }
body { margin: 0; font-family: var(--font-base); color: var(--color-text); background: var(--color-bg); line-height: 1.65; }
.wrap { max-width: 760px; margin: 0 auto; padding: 0 24px; }

.tool-header { background: var(--color-ink); color: #fff; padding: 18px 0; }
.tool-header .wrap { display: flex; align-items: center; justify-content: space-between; gap: 16px; }
.tool-header .logo { display: flex; align-items: center; gap: 8px; font-size: 1.1rem; font-weight: 800; font-family: var(--font-base); letter-spacing: -0.01em; color: #fff; text-decoration: none; flex-shrink: 0; }
.tool-header .logo img { display: block; height: 28px; width: auto; }
.tool-header .logo span { color: var(--color-accent); }
.tool-header p { margin: 0; font-size: 0.8rem; letter-spacing: -0.01em; line-height: 1.4; color: rgba(255,255,255,0.6); text-align: right; }

.intro { padding: 56px 0 16px; }
.intro h1 { font-size: 2.1rem; margin: 0 0 12px; letter-spacing: -0.02em; }
.intro p { color: var(--color-text-muted); margin: 0; }

.compare { padding: 8px 0 36px; }
.compare h2 { font-size: 1.15rem; margin: 0 0 14px; }
.compare-table { width: 100%; border-collapse: collapse; font-size: 0.88rem; border: 1px solid var(--color-border); border-radius: 10px; overflow: hidden; }
.compare-table th, .compare-table td { padding: 10px 12px; border-bottom: 1px solid var(--color-border); text-align: left; }
.compare-table th { background: var(--color-bg-soft); font-weight: 700; color: var(--color-text-muted); font-size: 0.82rem; }
.compare-table tr:last-child td { border-bottom: none; }
.compare-table td.no { color: var(--color-bad); }
.compare-table td.yes { color: var(--color-good); font-weight: 600; }

.check-form { padding: 16px 0 40px; }
.check-form form { display: flex; gap: 12px; }
.check-form input#urlInput { flex: 1; padding: 18px 20px; border: 1.5px solid var(--color-border); border-radius: 10px; font-size: 1.08rem; min-width: 0; transition: border-color 0.15s ease; }
.check-form input#urlInput:focus { outline: none; border-color: var(--color-accent); }
.check-form button { padding: 0 28px; border-radius: 10px; border: none; background: var(--color-accent); color: #fff; font-weight: 700; font-size: 1.02rem; letter-spacing: -0.01em; cursor: pointer; transition: background 0.15s ease, transform 0.1s ease; }
.check-form button:hover { background: var(--color-accent-dark); }
.check-form button:active { transform: scale(0.98); }
.check-form button:disabled { background: #aab2c8; cursor: wait; transform: none; }
.check-form .hint { color: var(--color-text-muted); font-size: 0.82rem; margin: 12px 0 0; }

.result { padding: 24px 0 64px; border-top: 1px solid var(--color-border); }

.score-summary { display: flex; align-items: center; gap: 28px; margin-bottom: 32px; flex-wrap: wrap; }
.score-circle { width: 140px; height: 140px; border-radius: 50%; background: var(--color-bg-soft); border: 6px solid var(--color-accent); display: flex; flex-direction: column; align-items: center; justify-content: center; flex-shrink: 0; }
.score-circle strong { font-size: 2.4rem; font-family: var(--font-mono); line-height: 1; }
.score-circle span { font-size: 0.78rem; color: var(--color-text-muted); margin-top: 4px; }
.score-message { flex: 1; min-width: 220px; font-size: 1.02rem; }

.score-bars { display: flex; flex-direction: column; gap: 14px; margin-bottom: 40px; }
.score-bar-row { }
.score-bar-row .label-row { display: flex; justify-content: space-between; font-size: 0.9rem; margin-bottom: 5px; }
.score-bar-row .label-row .val { font-family: var(--font-mono); font-weight: 700; }
.score-bar-track { height: 10px; background: var(--color-bg-soft); border-radius: 6px; overflow: hidden; }
.score-bar-fill { height: 100%; border-radius: 6px; transition: width 0.6s ease; }
.score-bar-row .detail { font-size: 0.8rem; color: var(--color-text-muted); margin-top: 4px; }
.score-bar-row.unknown .label-row .val { color: var(--color-text-muted); }

.explain { background: var(--color-bg-soft); border-radius: 12px; padding: 28px 26px; }
.explain h2 { font-size: 1.25rem; margin: 0 0 12px; }
.explain p { color: var(--color-text-muted); }
.explain-actions { display: flex; gap: 10px; margin-top: 16px; flex-wrap: wrap; }
.btn-cta { display: inline-block; padding: 12px 22px; border-radius: 6px; font-weight: 700; background: var(--color-accent); color: #fff; text-decoration: none; }
.btn-cta:hover { background: var(--color-accent-dark); }
.btn-cta-ghost { background: transparent; border: 1px solid var(--color-accent); color: var(--color-accent-dark); }

.error { padding: 0 0 60px; color: var(--color-bad); }

.tool-footer { background: var(--color-ink); color: rgba(255,255,255,0.55); padding: 24px 0; font-size: 0.82rem; text-align: center; }

@media (max-width: 560px) {
  .compare-table { font-size: 0.8rem; }
  .compare-table th, .compare-table td { padding: 8px 6px; }
  .check-form form { flex-direction: column; }
  .check-form button { padding: 16px 22px; }
  .score-summary { flex-direction: column; align-items: flex-start; }
  .tool-header .wrap { flex-direction: column; align-items: flex-start; gap: 4px; }
  .tool-header p { text-align: left; }
}

/* Mobile line-wrap fix: Korean text wraps at word boundaries, not mid-syllable */
body { word-break: keep-all; overflow-wrap: break-word; }
@media (max-width: 640px) {
  .lg-break { display: none; }
}