:root {
  --bg: #f4f6fb;
  --white: #ffffff;
  --border: #e2e7f0;
  --text: #111827;
  --muted: #6b7280;
  --accent: #4f6ef7;
  --accent-dark: #3b56d4;
  --accent-bg: #eef1ff;
  --green: #16a34a; --green-bg: #f0fdf4; --green-border: #bbf7d0;
  --yellow: #d97706; --yellow-bg: #fffbeb; --yellow-border: #fde68a;
  --red: #dc2626;   --red-bg: #fef2f2;   --red-border: #fecaca;
  --purple: #7c3aed;
  --gauge-green: #16a34a; --gauge-yellow: #f59e0b; --gauge-red: #dc2626;
  --radius: 14px;
  --shadow: 0 1px 3px rgba(0,0,0,.06), 0 8px 32px rgba(0,0,0,.07);
  --font: Inter, 'SF Pro Text', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
}

*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { font-size: 16px; }
body { font-family: var(--font); background: var(--bg); color: var(--text); min-height: 100vh; }
a { color: var(--accent); text-decoration: none; }
a:hover { text-decoration: underline; }
code { font-family: 'SF Mono','Courier New',monospace; font-size: .88em; background: #f1f3f7; padding: 2px 6px; border-radius: 4px; }

.page { min-height: 100vh; display: flex; flex-direction: column; }

/* ── Header ── */
.header { display: flex; align-items: center; justify-content: space-between; padding: 16px 40px; background: var(--white); border-bottom: 1px solid var(--border); }
.logo { display: flex; align-items: center; gap: 9px; font-weight: 700; font-size: 1.05rem; color: var(--text); }
.logo svg { color: var(--accent); }
.header-link { font-size: .85rem; color: var(--muted); }
.header-link:hover { color: var(--accent); text-decoration: none; }

/* ── Main / Footer ── */
.main { flex: 1; padding: 56px 40px 80px; }
.footer { padding: 24px 40px; text-align: center; font-size: .82rem; color: var(--muted); border-top: 1px solid var(--border); }

/* ═══ INDEX PAGE ═══ */
.index-layout { max-width: 1160px; margin: 0 auto; display: grid; grid-template-columns: 1fr 420px; gap: 48px; align-items: start; }

/* Hero */
.hero { margin-bottom: 32px; }
.hero-badge { display: inline-block; background: var(--accent-bg); color: var(--accent); font-size: .78rem; font-weight: 700; padding: 5px 14px; border-radius: 20px; text-transform: uppercase; letter-spacing: .06em; margin-bottom: 18px; }
.hero-title { font-size: clamp(2rem, 4vw, 3rem); font-weight: 800; line-height: 1.15; letter-spacing: -.025em; margin-bottom: 14px; }
.hero-sub { font-size: 1.1rem; color: var(--muted); line-height: 1.6; max-width: 500px; }

/* Checker card */
.checker-card { background: var(--white); border: 1px solid var(--border); border-radius: var(--radius); box-shadow: var(--shadow); overflow: hidden; }
.step-block { padding: 28px 32px; }
.step-label { display: flex; align-items: center; gap: 10px; font-size: .8rem; font-weight: 700; color: var(--muted); text-transform: uppercase; letter-spacing: .07em; margin-bottom: 16px; }
.step-num { width: 24px; height: 24px; border-radius: 50%; background: var(--accent); color: #fff; font-size: .75rem; font-weight: 800; display: flex; align-items: center; justify-content: center; flex-shrink: 0; }
.step-desc { font-size: .95rem; color: var(--muted); line-height: 1.55; }

.step-divider { display: flex; align-items: center; gap: 14px; padding: 0 32px; color: var(--muted); font-size: .8rem; font-weight: 500; }
.step-divider::before, .step-divider::after { content: ''; flex: 1; height: 1px; background: var(--border); }

/* Address box */
.address-box { display: flex; align-items: center; border: 2px solid var(--accent); border-radius: 12px; background: var(--accent-bg); padding: 6px 6px 6px 18px; gap: 8px; margin-bottom: 10px; min-height: 60px; }
.address-text { flex: 1; font-family: 'SF Mono','Courier New',monospace; font-size: clamp(.9rem, 2vw, 1.1rem); font-weight: 600; color: var(--accent-dark); letter-spacing: .01em; word-break: break-all; line-height: 1.4; }
.addr-placeholder { color: var(--muted); font-weight: 400; }
.addr-note { font-size: .78rem; color: var(--muted); text-align: center; }
.copy-btn { display: flex; align-items: center; gap: 7px; background: var(--accent); color: #fff; border: none; border-radius: 9px; padding: 12px 18px; font-size: .88rem; font-weight: 600; cursor: pointer; white-space: nowrap; transition: background .15s; flex-shrink: 0; }
.copy-btn:hover:not(:disabled) { background: var(--accent-dark); }
.copy-btn:disabled { opacity: .45; cursor: not-allowed; }
.copy-btn.copied { background: var(--green); }

/* Check button */
.check-btn { display: flex; align-items: center; justify-content: center; gap: 10px; width: 100%; background: var(--accent); color: #fff; border: none; border-radius: 12px; padding: 18px 24px; font-size: 1.05rem; font-weight: 700; cursor: pointer; transition: background .15s, transform .1s; margin-bottom: 12px; }
.check-btn:hover:not(:disabled) { background: var(--accent-dark); transform: translateY(-1px); }
.check-btn:disabled { opacity: .45; cursor: not-allowed; }
.status-msg { padding: 12px 16px; border-radius: 8px; font-size: .9rem; text-align: center; }
.status-msg--info { background: var(--accent-bg); color: var(--accent-dark); }
.status-msg--error { background: var(--red-bg); color: var(--red); border: 1px solid var(--red-border); }

/* Right column */
.what-card { background: var(--white); border: 1px solid var(--border); border-radius: var(--radius); box-shadow: var(--shadow); padding: 28px 32px; margin-bottom: 20px; }
.what-title { font-size: .8rem; font-weight: 700; color: var(--muted); text-transform: uppercase; letter-spacing: .07em; margin-bottom: 20px; }
.what-list { display: flex; flex-direction: column; gap: 18px; }
.what-item { display: flex; align-items: flex-start; gap: 14px; }
.what-icon { font-size: 1.3rem; flex-shrink: 0; margin-top: 1px; }
.what-item strong { display: block; font-size: .95rem; font-weight: 600; margin-bottom: 4px; }
.what-item p { font-size: .83rem; color: var(--muted); line-height: 1.5; }

.score-preview { background: var(--white); border: 1px solid var(--border); border-radius: var(--radius); padding: 24px 32px; }
.score-preview-inner { display: flex; align-items: center; gap: 20px; }
.score-demo { position: relative; }
.score-demo-num { position: absolute; bottom: 10px; left: 50%; transform: translateX(-50%); font-size: 1.6rem; font-weight: 800; white-space: nowrap; }
.score-demo-num span { font-size: .9rem; color: var(--muted); font-weight: 400; }
.score-preview p { font-size: .88rem; color: var(--muted); line-height: 1.5; }

/* ═══ REPORT PAGE ═══ */
.report-page { background: var(--bg); }
.report-main { flex: 1; padding: 40px 40px 80px; }
.report-wrap { max-width: 900px; margin: 0 auto; }

/* Report hero */
.r-hero { background: var(--white); border: 1px solid var(--border); border-radius: var(--radius); box-shadow: var(--shadow); padding: 36px 40px; display: grid; grid-template-columns: 200px 1fr; gap: 40px; align-items: center; margin-bottom: 20px; }
.r-gauge-col { display: flex; flex-direction: column; align-items: center; gap: 6px; }
.r-gauge-svg { width: 160px; }
.r-gauge-num { font-size: 42px; font-weight: 800; fill: var(--text); font-family: var(--font); }
.r-gauge-max { font-size: 14px; fill: var(--muted); font-family: var(--font); }
.r-gauge-label { font-size: .8rem; font-weight: 700; padding: 4px 14px; border-radius: 20px; text-transform: uppercase; letter-spacing: .05em; }
.r-gauge-label--green { background: var(--green-bg); color: var(--green); border: 1px solid var(--green-border); }
.r-gauge-label--yellow { background: var(--yellow-bg); color: var(--yellow); border: 1px solid var(--yellow-border); }
.r-gauge-label--red { background: var(--red-bg); color: var(--red); border: 1px solid var(--red-border); }
.r-gauge-hint { font-size: .8rem; color: var(--muted); text-align: center; max-width: 160px; line-height: 1.4; }

.r-meta-col { display: flex; flex-direction: column; gap: 16px; }
.r-meta-top { display: flex; flex-direction: column; gap: 8px; }
.r-meta-row { display: flex; flex-direction: column; gap: 2px; font-size: .9rem; }
.r-meta-lbl { font-size: .72rem; font-weight: 600; color: var(--muted); text-transform: uppercase; letter-spacing: .06em; }
.r-meta-row strong { font-size: 1rem; color: var(--text); }
.r-meta-row code { font-size: .85rem; }

.r-actions { display: flex; gap: 10px; flex-wrap: wrap; }
.btn-action { display: inline-flex; align-items: center; gap: 7px; padding: 10px 18px; border-radius: 9px; font-size: .88rem; font-weight: 600; cursor: pointer; border: 1px solid var(--border); background: var(--white); color: var(--text); text-decoration: none; transition: border-color .15s, background .15s; }
.btn-action:hover { border-color: var(--accent); color: var(--accent); text-decoration: none; }
.btn-action--primary { background: var(--accent); color: #fff; border-color: var(--accent); }
.btn-action--primary:hover { background: var(--accent-dark); border-color: var(--accent-dark); color: #fff; }

/* Deductions */
.r-deductions { background: var(--red-bg); border: 1px solid var(--red-border); border-radius: var(--radius); padding: 24px 28px; margin-bottom: 16px; }
.r-section-title { font-size: .75rem; font-weight: 700; color: var(--red); text-transform: uppercase; letter-spacing: .07em; margin-bottom: 14px; }
.r-ded-grid { display: flex; flex-direction: column; gap: 8px; }
.r-ded-item { display: flex; justify-content: space-between; align-items: center; font-size: .92rem; padding: 8px 0; border-bottom: 1px solid var(--red-border); }
.r-ded-item:last-child { border-bottom: none; padding-bottom: 0; }
.r-ded-pts { font-weight: 700; color: var(--red); margin-left: 12px; white-space: nowrap; }
.r-perfect { background: var(--green-bg); border: 1px solid var(--green-border); border-radius: var(--radius); padding: 16px 24px; text-align: center; color: var(--green); font-weight: 600; font-size: 1rem; margin-bottom: 16px; }

/* Accordions */
.r-accordions { display: flex; flex-direction: column; gap: 10px; }
.r-acc { background: var(--white); border: 1px solid var(--border); border-radius: var(--radius); overflow: hidden; }
.r-acc-head { display: flex; align-items: center; gap: 12px; padding: 20px 24px; cursor: pointer; list-style: none; user-select: none; }
.r-acc-head::-webkit-details-marker { display: none; }
.r-acc-icon { font-size: 1.1rem; flex-shrink: 0; }
.r-acc-titles { flex: 1; min-width: 0; }
.r-acc-name { display: block; font-weight: 600; font-size: 1rem; }
.r-acc-sub { display: block; font-size: .8rem; color: var(--muted); margin-top: 2px; }
.r-acc-badge { font-size: .75rem; font-weight: 600; padding: 4px 10px; border-radius: 20px; white-space: nowrap; }
.r-acc-badge--ok { background: var(--green-bg); color: var(--green); border: 1px solid var(--green-border); }
.r-acc-badge--warn { background: var(--yellow-bg); color: var(--yellow); border: 1px solid var(--yellow-border); }
.r-acc-badge--bad { background: var(--red-bg); color: var(--red); border: 1px solid var(--red-border); }
.r-acc-chevron { color: var(--muted); transition: transform .2s; flex-shrink: 0; }
details[open] .r-acc-chevron { transform: rotate(180deg); }
.r-acc-body { padding: 0 24px 24px; border-top: 1px solid var(--border); padding-top: 20px; }

/* Auth */
.r-auth-grid { display: flex; flex-direction: column; gap: 14px; }
.r-auth-row { padding-bottom: 14px; border-bottom: 1px solid var(--border); }
.r-auth-row:last-child { padding-bottom: 0; border-bottom: none; }
.r-auth-head { display: flex; align-items: center; gap: 8px; margin-bottom: 6px; flex-wrap: wrap; }
.r-auth-detail { font-size: .85rem; color: var(--muted); line-height: 1.5; margin-left: 28px; }
.r-extra { font-size: .82rem; color: var(--muted); }

/* Icons */
.ico { display: inline-flex; align-items: center; justify-content: center; width: 22px; height: 22px; border-radius: 50%; font-size: .78rem; font-weight: 700; flex-shrink: 0; }
.ico--pass { background: var(--green-bg); color: var(--green); border: 1px solid var(--green-border); }
.ico--fail { background: var(--red-bg); color: var(--red); border: 1px solid var(--red-border); }
.badge { font-size: .72rem; font-weight: 700; padding: 2px 8px; border-radius: 10px; text-transform: uppercase; letter-spacing: .04em; }
.badge--pass { background: var(--green-bg); color: var(--green); border: 1px solid var(--green-border); }
.badge--fail { background: var(--red-bg); color: var(--red); border: 1px solid var(--red-border); }
.badge--warn { background: var(--yellow-bg); color: var(--yellow); border: 1px solid var(--yellow-border); }

/* Tooltips */
.term-tip { position: relative; display: inline-flex; align-items: center; }
.term-tip-icon { width: 18px; height: 18px; border-radius: 50%; background: var(--accent-bg); color: var(--accent); font-size: .72rem; font-weight: 700; display: inline-flex; align-items: center; justify-content: center; cursor: pointer; margin-left: 4px; border: 1px solid var(--accent); flex-shrink: 0; }
.term-tip-box { display: none; position: absolute; left: 0; top: calc(100% + 8px); width: 280px; background: var(--text); color: #fff; border-radius: 10px; padding: 14px 16px; font-size: .82rem; line-height: 1.5; z-index: 100; box-shadow: 0 8px 24px rgba(0,0,0,.2); }
.term-tip-box strong { display: block; margin-bottom: 6px; font-size: .85rem; color: #e2e8f0; }
.term-tip-box span { display: block; margin-bottom: 6px; }
.term-tip-box em { display: block; font-style: normal; color: #86efac; font-size: .8rem; border-top: 1px solid rgba(255,255,255,.1); padding-top: 6px; margin-top: 4px; }
.term-tip:hover .term-tip-box,
.term-tip:focus-within .term-tip-box { display: block; }

/* Blacklist */
.r-bl-list { display: flex; flex-direction: column; gap: 10px; margin-bottom: 14px; }
.r-bl-hit { display: flex; align-items: flex-start; gap: 10px; font-size: .9rem; }
.r-bl-detail { font-size: .82rem; color: var(--muted); margin-top: 2px; }

/* Headers */
.r-hdr-grid { display: flex; flex-direction: column; gap: 12px; }
.r-hdr-row { display: flex; align-items: flex-start; gap: 10px; font-size: .9rem; }
.r-hdr-desc { font-size: .83rem; color: var(--muted); margin-top: 3px; line-height: 1.45; }

/* Content */
.r-content-stats { display: flex; gap: 14px; flex-wrap: wrap; margin-bottom: 18px; }
.r-cstat { background: var(--bg); border: 1px solid var(--border); border-radius: 10px; padding: 14px 20px; text-align: center; min-width: 100px; }
.r-cstat-val { display: block; font-size: 1.8rem; font-weight: 800; }
.r-cstat-val.good { color: var(--green); }
.r-cstat-val.bad { color: var(--red); }
.r-cstat-lbl { font-size: .75rem; color: var(--muted); }
.r-spam-section { margin-bottom: 14px; }
.r-spam-title { font-size: .82rem; font-weight: 600; color: var(--muted); margin-bottom: 8px; }
.r-spam-tags { display: flex; flex-wrap: wrap; gap: 6px; margin-bottom: 8px; }
.r-spam-tag { background: var(--red-bg); color: var(--red); border: 1px solid var(--red-border); border-radius: 6px; padding: 3px 9px; font-size: .8rem; }
.r-issue-row { display: flex; align-items: flex-start; gap: 9px; margin-bottom: 8px; font-size: .9rem; }

/* Links */
.r-broken-item { display: flex; align-items: flex-start; gap: 9px; margin-bottom: 10px; }
.r-broken-url { display: block; font-size: .82rem; word-break: break-all; }
.r-broken-reason { font-size: .78rem; color: var(--red); margin-top: 3px; }
.r-sender-ip { font-size: .85rem; color: var(--muted); margin-bottom: 12px; }

/* Shared */
.r-explain { font-size: .88rem; color: var(--muted); line-height: 1.5; margin-bottom: 14px; }
.r-ok-msg { color: var(--green); font-size: .9rem; }
.rec-block { background: var(--yellow-bg); border: 1px solid var(--yellow-border); border-left: 3px solid var(--yellow); border-radius: 0 8px 8px 0; padding: 14px 18px; margin-top: 14px; }
.rec-title { font-size: .78rem; font-weight: 700; color: var(--yellow); margin-bottom: 10px; }
.rec-block ul { list-style: none; display: flex; flex-direction: column; gap: 6px; }
.rec-block li { font-size: .88rem; color: var(--text); padding-left: 14px; position: relative; line-height: 1.4; }
.rec-block li::before { content: '→'; position: absolute; left: 0; color: var(--yellow); }
.rec-block a { color: var(--accent); }

/* Loading/error */
.loading-state { display: flex; flex-direction: column; align-items: center; gap: 16px; padding: 100px 20px; color: var(--muted); text-align: center; }

/* ── Modal ── */
.modal-overlay { position: fixed; inset: 0; background: rgba(0,0,0,.45); display: flex; align-items: center; justify-content: center; z-index: 1000; padding: 20px; }
.modal { background: var(--white); border-radius: var(--radius); box-shadow: 0 20px 60px rgba(0,0,0,.2); padding: 36px; width: 100%; max-width: 560px; max-height: 90vh; overflow-y: auto; position: relative; }
.modal-close { position: absolute; top: 16px; right: 16px; background: none; border: none; font-size: 1.2rem; cursor: pointer; color: var(--muted); width: 32px; height: 32px; border-radius: 6px; display: flex; align-items: center; justify-content: center; }
.modal-close:hover { background: var(--bg); color: var(--text); }
.modal-title { font-size: 1.25rem; font-weight: 700; margin-bottom: 24px; }
.modal-section { margin-bottom: 24px; }
.modal-section:last-child { margin-bottom: 0; }
.modal-label { font-size: .8rem; font-weight: 700; color: var(--muted); text-transform: uppercase; letter-spacing: .06em; margin-bottom: 10px; }
.modal-copy-row { display: flex; gap: 8px; }
.modal-input { flex: 1; border: 1px solid var(--border); border-radius: 8px; padding: 10px 14px; font-size: .88rem; color: var(--text); background: var(--bg); font-family: 'SF Mono','Courier New',monospace; }
.modal-textarea { width: 100%; border: 1px solid var(--border); border-radius: 8px; padding: 12px 14px; font-size: .82rem; color: var(--text); background: var(--bg); font-family: 'SF Mono','Courier New',monospace; resize: vertical; line-height: 1.5; }
.modal-hint { font-size: .78rem; color: var(--muted); margin-top: 7px; line-height: 1.4; }
.btn-sm { padding: 9px 16px; border-radius: 8px; font-size: .85rem; font-weight: 600; cursor: pointer; border: none; }
.btn-accent { background: var(--accent); color: #fff; }
.btn-accent:hover { background: var(--accent-dark); }
.btn-ghost { background: var(--white); color: var(--text); border: 1px solid var(--border) !important; }
.btn-ghost:hover { border-color: var(--accent) !important; color: var(--accent); }
.w-full { width: 100%; }

/* Spinner */
.spin { animation: spin .8s linear infinite; }
@keyframes spin { to { transform: rotate(360deg); } }

/* ═══ PRINT STYLES ═══ */
.print-only { display: none; }
@media print {
  .no-print { display: none !important; }
  .print-only { display: block !important; }
  body { background: #fff; }
  .report-main { padding: 0; }
  .report-wrap { max-width: 100%; }
  .r-hero { box-shadow: none; border: 1px solid #ddd; break-inside: avoid; }
  .r-acc { break-inside: avoid; }
  details.r-acc { display: block; }
  details.r-acc .r-acc-body { display: block !important; padding-top: 16px; }
  .r-acc-chevron { display: none; }
  .modal-overlay { display: none !important; }
  .r-actions { display: none; }
  .r-print-title { font-size: 1.1rem; font-weight: 700; margin-bottom: 12px; color: #111; }
  .r-print-footer { margin-top: 32px; padding-top: 16px; border-top: 1px solid #ddd; font-size: .78rem; color: #888; text-align: center; }
  .term-tip-box { display: none !important; }
  a { color: #333; }
  .r-hero { page-break-after: avoid; }
}

/* ═══ PROMO SECTION ═══ */
.promo-section { background: var(--white); border-top: 1px solid var(--border); padding: 56px 40px; }
.promo-wrap { max-width: 1160px; margin: 0 auto; display: grid; grid-template-columns: 1fr 1fr; gap: 40px; align-items: start; }

.leadmag-card { background: linear-gradient(135deg, #eef1ff 0%, #f0fdf4 100%); border: 1px solid var(--accent); border-radius: var(--radius); padding: 32px; }
.leadmag-eyebrow { font-size: .78rem; font-weight: 700; color: var(--accent); text-transform: uppercase; letter-spacing: .07em; margin-bottom: 12px; }
.leadmag-title { font-size: 1.2rem; font-weight: 700; line-height: 1.3; margin-bottom: 12px; }
.leadmag-desc { font-size: .9rem; color: var(--muted); line-height: 1.6; margin-bottom: 20px; }
.leadmag-btn { display: inline-flex; align-items: center; background: var(--accent); color: #fff; padding: 12px 22px; border-radius: 9px; font-size: .95rem; font-weight: 700; text-decoration: none; transition: background .15s; }
.leadmag-btn:hover { background: var(--accent-dark); text-decoration: none; color: #fff; }

.tools-title { font-size: .78rem; font-weight: 700; color: var(--muted); text-transform: uppercase; letter-spacing: .07em; margin-bottom: 14px; }
.tools-grid { display: flex; flex-direction: column; gap: 10px; }
.tool-card { display: flex; align-items: center; gap: 14px; background: var(--bg); border: 1px solid var(--border); border-radius: 10px; padding: 14px 18px; text-decoration: none; transition: border-color .15s, background .15s; }
.tool-card:hover { border-color: var(--accent); background: var(--accent-bg); text-decoration: none; }
.tool-icon { font-size: 1.3rem; flex-shrink: 0; }
.tool-card strong { display: block; font-size: .92rem; font-weight: 600; color: var(--text); margin-bottom: 2px; }
.tool-card span { font-size: .8rem; color: var(--muted); }

/* ═══ RESPONSIVE ═══ */
@media (max-width: 960px) {
  .index-layout { grid-template-columns: 1fr; gap: 32px; }
  .index-right { order: -1; }
  .score-preview { display: none; }
  .promo-wrap { grid-template-columns: 1fr; }
  .promo-section { padding: 40px 20px; }
}
@media (max-width: 700px) {
  .header { padding: 14px 20px; }
  .main { padding: 32px 20px 60px; }
  .footer { padding: 20px; }
  .step-block { padding: 22px 20px; }
  .step-divider { padding: 0 20px; }
  .what-card, .checker-card { border-radius: 12px; }
  .r-hero { grid-template-columns: 1fr; text-align: center; gap: 24px; padding: 28px 24px; }
  .r-gauge-col { order: 0; }
  .r-meta-col { order: 1; }
  .r-auth-detail { margin-left: 0; }
  .r-actions { justify-content: center; }
  .r-meta-row { align-items: center; }
  .report-main { padding: 24px 16px 60px; }
  .r-acc-head { padding: 16px 18px; gap: 10px; }
  .r-acc-body { padding: 16px 18px; }
  .r-acc-sub { display: none; }
  .r-content-stats { gap: 10px; }
  .r-cstat { min-width: 80px; padding: 10px 14px; }
  .modal { padding: 24px 20px; }
  .r-hero { margin-bottom: 16px; }
}
@media (max-width: 480px) {
  .address-box { flex-direction: column; align-items: stretch; padding: 14px 16px; }
  .copy-btn { width: 100%; justify-content: center; }
  .term-tip-box { left: auto; right: 0; width: 240px; }
}