/* Safeguard Signal - Resource Center shared styles */
:root {
  --ss-blue: #1e40af;
  --ss-sky: #0ea5e9;
  --ss-orange: #f97316;
  --ss-bg: #0f172a;
  --ss-surface: #1e293b;
  --ss-surface-2: #0b1220;
  --ss-text: #f1f5f9;
  --ss-muted: #94a3b8;
  --ss-border: rgba(255, 255, 255, 0.08);
  --ss-focus: #38bdf8;
  --ss-radius: 12px;
  --ss-maxw: 1120px;
  --ss-read: 72ch;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { animation-duration: 0.001ms !important; transition-duration: 0.001ms !important; }
}

body {
  margin: 0;
  background: var(--ss-bg);
  color: var(--ss-text);
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", system-ui, sans-serif;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

a { color: var(--ss-sky); text-decoration: none; }
a:hover { text-decoration: underline; }
a:focus-visible, button:focus-visible {
  outline: 2px solid var(--ss-focus);
  outline-offset: 2px;
  border-radius: 4px;
}

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

.skip-link {
  position: absolute; left: -9999px; top: 0;
  background: var(--ss-orange); color: #0f172a; padding: 8px 14px;
  font-weight: 600; z-index: 100; border-radius: 0 0 8px 0;
}
.skip-link:focus { left: 0; }

/* ===== Shared header ===== */
.ss-header {
  background: var(--ss-surface-2);
  border-bottom: 1px solid var(--ss-border);
  position: sticky; top: 0; z-index: 50;
}
.ss-header-inner {
  max-width: var(--ss-maxw); margin: 0 auto;
  display: flex; align-items: center; justify-content: space-between;
  padding: 14px 20px; gap: 16px;
}
.ss-brand {
  display: inline-flex; align-items: center; gap: 10px;
  color: var(--ss-text); font-weight: 700; font-size: 1.05rem;
}
.ss-brand:hover { text-decoration: none; color: var(--ss-text); }
.ss-brand img { width: 32px; height: 32px; }

.ss-nav ul {
  list-style: none; margin: 0; padding: 0;
  display: flex; gap: 22px; align-items: center;
}
.ss-nav a {
  color: var(--ss-text); font-size: 0.95rem; font-weight: 500;
  padding: 8px 4px;
}
.ss-nav a[aria-current="page"] { color: var(--ss-sky); }

.ss-nav-toggle {
  display: none;
  background: transparent; color: var(--ss-text);
  border: 1px solid var(--ss-border); padding: 8px 12px;
  border-radius: 8px; cursor: pointer; min-height: 44px; min-width: 44px;
}

@media (max-width: 768px) {
  .ss-nav-toggle { display: inline-flex; align-items: center; justify-content: center; }
  .ss-nav {
    display: none;
    position: absolute; top: 100%; left: 0; right: 0;
    background: var(--ss-surface-2);
    border-bottom: 1px solid var(--ss-border);
    padding: 12px 20px;
  }
  .ss-nav[data-open="true"] { display: block; }
  .ss-nav ul { flex-direction: column; align-items: flex-start; gap: 4px; }
  .ss-nav a { display: block; padding: 12px 4px; width: 100%; min-height: 44px; }
}

/* ===== Layout ===== */
main { display: block; }
.ss-container { max-width: var(--ss-maxw); margin: 0 auto; padding: 32px 20px; }
.ss-container-narrow { max-width: 820px; margin: 0 auto; padding: 32px 20px; }

/* ===== Breadcrumbs ===== */
.ss-breadcrumbs {
  font-size: 0.875rem; color: var(--ss-muted);
  padding: 12px 0;
}
.ss-breadcrumbs ol {
  list-style: none; margin: 0; padding: 0;
  display: flex; flex-wrap: wrap; gap: 6px; align-items: center;
}
.ss-breadcrumbs li + li::before {
  content: "/"; color: var(--ss-muted); margin: 0 4px;
}
.ss-breadcrumbs a { color: var(--ss-muted); }
.ss-breadcrumbs [aria-current="page"] { color: var(--ss-text); }

/* ===== Hero ===== */
.ss-hero {
  background: linear-gradient(135deg, #1e40af 0%, #0ea5e9 100%);
  color: #fff;
  padding: 64px 20px;
  border-radius: var(--ss-radius);
  margin-bottom: 32px;
}
.ss-hero-inner { max-width: 800px; margin: 0 auto; text-align: center; }
.ss-hero h1 {
  font-size: clamp(2rem, 4vw + 1rem, 3rem);
  line-height: 1.2; margin: 0 0 16px; font-weight: 800;
}
.ss-hero p {
  font-size: 1.125rem; margin: 0 0 28px;
  color: rgba(255,255,255,0.92);
}
.ss-hero-actions {
  display: flex; flex-wrap: wrap; gap: 12px; justify-content: center;
}

/* ===== Buttons ===== */
.ss-btn {
  display: inline-flex; align-items: center; justify-content: center;
  min-height: 44px; padding: 12px 22px;
  border-radius: 8px; font-weight: 600; font-size: 0.95rem;
  border: 1px solid transparent; cursor: pointer;
  transition: transform 0.15s ease, background 0.15s ease;
}
.ss-btn-primary { background: var(--ss-orange); color: #0f172a; }
.ss-btn-primary:hover { background: #fb923c; text-decoration: none; }
.ss-btn-secondary {
  background: transparent; color: #fff;
  border-color: rgba(255,255,255,0.4);
}
.ss-btn-secondary:hover { background: rgba(255,255,255,0.1); text-decoration: none; }
.ss-btn-ghost {
  background: var(--ss-surface); color: var(--ss-text);
  border-color: var(--ss-border);
}
.ss-btn-ghost:hover { background: #334155; text-decoration: none; }

/* ===== Section headings ===== */
.ss-section { margin: 48px 0; }
.ss-section h2 {
  font-size: clamp(1.5rem, 2vw + 1rem, 2rem);
  margin: 0 0 8px; color: var(--ss-text); font-weight: 700;
}
.ss-section > p.ss-lead {
  color: var(--ss-muted); max-width: 68ch; margin: 0 0 24px;
  font-size: 1.05rem;
}

/* ===== Card grid ===== */
.ss-grid {
  display: grid; gap: 20px;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
}

.ss-card {
  background: var(--ss-surface);
  border: 1px solid var(--ss-border);
  border-radius: var(--ss-radius);
  padding: 22px;
  display: flex; flex-direction: column;
  transition: transform 0.15s ease, border-color 0.15s ease;
}
.ss-card:hover { border-color: var(--ss-sky); transform: translateY(-2px); }
.ss-card h3 {
  margin: 0 0 8px; font-size: 1.15rem; color: var(--ss-text);
}
.ss-card h3 a { color: var(--ss-text); }
.ss-card p { margin: 0 0 12px; color: var(--ss-muted); font-size: 0.95rem; }
.ss-card-meta {
  margin-top: auto; display: flex; gap: 12px; flex-wrap: wrap;
  font-size: 0.8rem; color: var(--ss-muted);
  padding-top: 12px; border-top: 1px solid var(--ss-border);
}
.ss-tag {
  display: inline-block; padding: 3px 10px; border-radius: 999px;
  background: rgba(14,165,233,0.15); color: var(--ss-sky);
  font-size: 0.75rem; font-weight: 600; text-transform: uppercase;
  letter-spacing: 0.03em;
}
.ss-tag-coming {
  background: rgba(249,115,22,0.15); color: var(--ss-orange);
}

/* ===== Lifecycle ===== */
.ss-lifecycle {
  display: grid; gap: 12px;
  grid-template-columns: repeat(auto-fit, minmax(140px, 1fr));
  margin: 24px 0;
}
.ss-lifecycle-step {
  background: var(--ss-surface);
  border: 1px solid var(--ss-border);
  border-top: 3px solid var(--ss-sky);
  border-radius: var(--ss-radius);
  padding: 18px;
}
.ss-lifecycle-step:nth-child(3n) { border-top-color: var(--ss-orange); }
.ss-lifecycle-step:nth-child(3n+1) { border-top-color: var(--ss-blue); }
.ss-lifecycle-step h3 {
  margin: 0 0 6px; font-size: 1rem;
  color: var(--ss-text); text-transform: uppercase; letter-spacing: 0.05em;
}
.ss-lifecycle-step p { margin: 0; font-size: 0.9rem; color: var(--ss-muted); }

/* ===== Checklist ===== */
.ss-checklist {
  background: var(--ss-surface);
  border: 1px solid var(--ss-border);
  border-radius: var(--ss-radius);
  padding: 24px; list-style: none; margin: 0;
}
.ss-checklist li {
  padding: 10px 0 10px 32px; position: relative;
  border-bottom: 1px solid var(--ss-border);
}
.ss-checklist li:last-child { border-bottom: 0; }
.ss-checklist li::before {
  content: ""; position: absolute; left: 0; top: 14px;
  width: 18px; height: 18px; border-radius: 4px;
  border: 2px solid var(--ss-sky); background: transparent;
}

/* ===== FAQ ===== */
.ss-faq details {
  background: var(--ss-surface);
  border: 1px solid var(--ss-border);
  border-radius: var(--ss-radius);
  padding: 16px 20px; margin-bottom: 10px;
}
.ss-faq summary {
  cursor: pointer; font-weight: 600; font-size: 1.02rem;
  color: var(--ss-text); list-style: none;
  padding: 4px 0;
}
.ss-faq summary::-webkit-details-marker { display: none; }
.ss-faq summary::after {
  content: "+"; float: right; color: var(--ss-sky); font-weight: 700; font-size: 1.2rem;
}
.ss-faq details[open] summary::after { content: "−"; }
.ss-faq details > *:not(summary) { margin-top: 10px; color: var(--ss-muted); }

/* ===== CTA panel ===== */
.ss-cta {
  background: linear-gradient(135deg, #1e40af 0%, #0f172a 100%);
  border: 1px solid var(--ss-border);
  border-radius: var(--ss-radius);
  padding: 40px 28px; text-align: center;
}
.ss-cta h2 { margin: 0 0 10px; }
.ss-cta p { color: rgba(255,255,255,0.85); max-width: 60ch; margin: 0 auto 20px; }

/* ===== Disclaimer / notes ===== */
.ss-note {
  background: var(--ss-surface-2);
  border-left: 3px solid var(--ss-orange);
  padding: 14px 18px; border-radius: 6px;
  color: var(--ss-muted); font-size: 0.9rem;
  margin: 20px 0;
}

/* ===== Article layouts (patterns for future guides) ===== */
.ss-article { max-width: var(--ss-read); margin: 0 auto; }
.ss-article h1 { font-size: clamp(1.75rem, 3vw + 1rem, 2.5rem); line-height: 1.2; }
.ss-article h2 { margin-top: 2em; }
.ss-article h3 { margin-top: 1.5em; }
.ss-article p, .ss-article li { font-size: 1.05rem; }

.ss-timeline { list-style: none; padding: 0; margin: 24px 0; }
.ss-timeline li {
  border-left: 2px solid var(--ss-sky);
  padding: 4px 0 20px 20px; margin-left: 8px; position: relative;
}
.ss-timeline li::before {
  content: ""; position: absolute; left: -7px; top: 8px;
  width: 12px; height: 12px; border-radius: 50%; background: var(--ss-orange);
}

.ss-phase-grid {
  display: grid; gap: 16px;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  margin: 24px 0;
}
.ss-phase {
  background: var(--ss-surface);
  border: 1px solid var(--ss-border);
  border-left: 4px solid var(--ss-blue);
  border-radius: 8px; padding: 18px;
}

.ss-role-card {
  background: var(--ss-surface); border: 1px solid var(--ss-border);
  border-radius: 8px; padding: 18px; margin: 12px 0;
}
.ss-role-card h4 { margin: 0 0 6px; color: var(--ss-sky); }

.ss-sample-message {
  background: var(--ss-surface-2); border: 1px dashed var(--ss-border);
  border-radius: 8px; padding: 18px; font-family: ui-monospace, "SF Mono", Menlo, monospace;
  font-size: 0.95rem; white-space: pre-wrap; color: var(--ss-text);
  margin: 16px 0;
}

.ss-references { font-size: 0.9rem; color: var(--ss-muted); }
.ss-references ol { padding-left: 20px; }

/* ===== Footer ===== */
.ss-footer {
  border-top: 1px solid var(--ss-border);
  padding: 28px 20px; text-align: center;
  color: var(--ss-muted); font-size: 0.85rem; margin-top: 48px;
}
.ss-footer a { color: var(--ss-muted); }
.ss-footer-links {
  display: flex; flex-wrap: wrap; justify-content: center;
  gap: 18px; margin-bottom: 10px;
}

/* ===== Guide-specific patterns ===== */
.ss-callout {
  background: var(--ss-surface); border: 1px solid var(--ss-border);
  border-left: 4px solid var(--ss-sky);
  border-radius: 8px; padding: 16px 20px; margin: 20px 0;
}
.ss-callout.ss-callout-warn { border-left-color: var(--ss-orange); }
.ss-callout h4 { margin: 0 0 6px; color: var(--ss-sky); font-size: 1rem; }
.ss-callout.ss-callout-warn h4 { color: var(--ss-orange); }
.ss-callout p:last-child { margin-bottom: 0; }

.ss-steps { counter-reset: step; list-style: none; padding: 0; margin: 24px 0; }
.ss-steps > li {
  counter-increment: step;
  position: relative; padding: 18px 20px 18px 68px;
  background: var(--ss-surface); border: 1px solid var(--ss-border);
  border-radius: var(--ss-radius); margin-bottom: 14px;
}
.ss-steps > li::before {
  content: counter(step);
  position: absolute; left: 18px; top: 16px;
  width: 36px; height: 36px; border-radius: 50%;
  background: var(--ss-blue); color: #fff;
  display: flex; align-items: center; justify-content: center;
  font-weight: 700;
}
.ss-steps h3 { margin: 0 0 6px; font-size: 1.1rem; color: var(--ss-text); }

.ss-table-wrap { overflow-x: auto; margin: 20px 0; }
.ss-table {
  width: 100%; border-collapse: collapse; min-width: 600px;
  background: var(--ss-surface); border: 1px solid var(--ss-border);
  border-radius: var(--ss-radius); overflow: hidden;
}
.ss-table th, .ss-table td {
  padding: 12px 14px; text-align: left;
  border-bottom: 1px solid var(--ss-border); vertical-align: top;
  font-size: 0.95rem;
}
.ss-table th { background: var(--ss-surface-2); color: var(--ss-sky); font-weight: 600; }
.ss-table tr:last-child td { border-bottom: none; }

.ss-msg-grid {
  display: grid; gap: 18px;
  grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
  margin: 24px 0;
}
.ss-msg-card {
  background: var(--ss-surface); border: 1px solid var(--ss-border);
  border-radius: var(--ss-radius); padding: 20px;
}
.ss-msg-card h4 { margin: 0 0 6px; color: var(--ss-orange); font-size: 1rem; text-transform: uppercase; letter-spacing: 0.04em; }
.ss-msg-card .ss-sample-message { margin: 10px 0 0; }

.ss-dodont { display: grid; gap: 16px; grid-template-columns: repeat(auto-fit, minmax(260px, 1fr)); margin: 20px 0; }
.ss-do, .ss-dont { background: var(--ss-surface); border: 1px solid var(--ss-border); border-radius: 8px; padding: 16px 18px; }
.ss-do { border-top: 3px solid #22c55e; }
.ss-dont { border-top: 3px solid #ef4444; }
.ss-do h4 { color: #22c55e; margin: 0 0 8px; }
.ss-dont h4 { color: #ef4444; margin: 0 0 8px; }
.ss-do ul, .ss-dont ul { margin: 0; padding-left: 20px; }

.ss-meta-line {
  color: var(--ss-muted); font-size: 0.85rem;
  padding: 8px 0; border-top: 1px solid var(--ss-border);
  border-bottom: 1px solid var(--ss-border); margin: 12px 0 24px;
  display: flex; gap: 18px; flex-wrap: wrap;
}