/* ============================================================
   Kindo Training Portal — Shared Stylesheet
   ============================================================ */

/* ── CSS Variables ────────────────────────────────────────── */
:root {
  --color-bg:           #0a1628;
  --color-bg-card:      #0f2040;
  --color-bg-raised:    #132848;
  --color-border:       #1e3a5f;
  --color-border-light: #2a4a70;

  --color-accent:       #3b82f6;
  --color-accent-hover: #60a5fa;
  --color-accent-dim:   rgba(59,130,246,0.14);
  --color-accent-glow:  rgba(59,130,246,0.07);

  --color-text:         #e8f0ff;
  --color-text-muted:   #94a3b8;
  --color-text-dim:     #4a6480;

  --color-success:      #22c55e;
  --color-warning:      #f59e0b;
  --color-danger:       #ef4444;
  --color-info:         #38bdf8;

  --sidebar-width: 256px;
  --header-height: 56px;
  --content-max:   880px;
  --radius:        8px;
  --radius-lg:     12px;

  --font-sans: -apple-system, BlinkMacSystemFont, 'Segoe UI', system-ui, sans-serif;
  --font-mono: 'Fira Code', 'Cascadia Code', ui-monospace, monospace;
}

/* ── Reset ────────────────────────────────────────────────── */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }

body {
  font-family: var(--font-sans);
  background: var(--color-bg);
  color: var(--color-text);
  line-height: 1.65;
  font-size: 15px;
  min-height: 100vh;
}

a { color: var(--color-accent); text-decoration: none; }
a:hover { color: var(--color-accent-hover); text-decoration: underline; }
img { max-width: 100%; height: auto; }

/* ── App Layout ───────────────────────────────────────────── */
.app { display: flex; min-height: 100vh; }

/* Sidebar */
.sidebar {
  width: var(--sidebar-width);
  min-width: var(--sidebar-width);
  background: var(--color-bg-card);
  border-right: 1px solid var(--color-border);
  display: flex;
  flex-direction: column;
  position: sticky;
  top: 0;
  height: 100vh;
  overflow-y: auto;
  flex-shrink: 0;
  z-index: 100;
}

.sidebar-logo {
  padding: 18px 18px 14px;
  border-bottom: 1px solid var(--color-border);
  display: flex;
  align-items: center;
  gap: 10px;
  text-decoration: none !important;
}

.logo-mark {
  width: 30px;
  height: 30px;
  background: var(--color-accent);
  border-radius: 7px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 15px;
  font-weight: 800;
  color: #fff;
  flex-shrink: 0;
  letter-spacing: -1px;
}

.logo-text { display: flex; flex-direction: column; }
.logo-name { font-size: 13.5px; font-weight: 700; color: var(--color-text); line-height: 1.2; }
.logo-sub  { font-size: 10.5px; color: var(--color-text-dim); }

.nav-section { padding: 10px 0; }

.nav-label {
  font-size: 10px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--color-text-dim);
  padding: 6px 18px 2px;
}

.nav-link {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 7px 18px;
  color: var(--color-text-muted);
  font-size: 13.5px;
  text-decoration: none !important;
  border-left: 2px solid transparent;
  transition: color 0.15s, background 0.15s, border-color 0.15s;
}

.nav-link:hover {
  color: var(--color-text);
  background: var(--color-accent-glow);
}

.nav-link.active {
  color: var(--color-accent-hover);
  border-left-color: var(--color-accent);
  background: var(--color-accent-dim);
  font-weight: 500;
}

.nav-link .ni { font-size: 14px; width: 18px; text-align: center; flex-shrink: 0; }

.nav-link.sub { padding-left: 42px; font-size: 12.5px; }

.sidebar-footer {
  margin-top: auto;
  padding: 12px 18px;
  border-top: 1px solid var(--color-border);
  font-size: 11px;
  color: var(--color-text-dim);
  line-height: 1.5;
}

/* Mobile header */
.mobile-header {
  display: none;
  position: sticky;
  top: 0;
  z-index: 200;
  background: var(--color-bg-card);
  border-bottom: 1px solid var(--color-border);
  padding: 0 16px;
  height: var(--header-height);
  align-items: center;
  justify-content: space-between;
}

.mobile-logo {
  display: flex;
  align-items: center;
  gap: 8px;
  font-weight: 700;
  font-size: 14px;
  color: var(--color-text);
  text-decoration: none !important;
}

.hamburger {
  background: none;
  border: 1px solid var(--color-border);
  color: var(--color-text-muted);
  padding: 6px 9px;
  border-radius: var(--radius);
  cursor: pointer;
  font-size: 16px;
  line-height: 1;
}

.sidebar-overlay {
  display: none;
  position: fixed;
  inset: 0;
  background: rgba(0,0,0,0.55);
  z-index: 90;
}

.sidebar-overlay.open { display: block; }

/* Main area */
.main { flex: 1; min-width: 0; display: flex; flex-direction: column; }

.content {
  flex: 1;
  padding: 40px 48px;
  max-width: calc(var(--content-max) + 96px);
  width: 100%;
}

/* ── Page header ──────────────────────────────────────────── */
.page-header {
  margin-bottom: 36px;
  padding-bottom: 24px;
  border-bottom: 1px solid var(--color-border);
}

.breadcrumb {
  font-size: 11.5px;
  color: var(--color-text-dim);
  margin-bottom: 10px;
  display: flex;
  align-items: center;
  gap: 5px;
}

.breadcrumb a { color: var(--color-text-dim); }
.breadcrumb a:hover { color: var(--color-accent); text-decoration: none; }
.breadcrumb-sep { color: var(--color-text-dim); }

.page-title {
  font-size: 26px;
  font-weight: 700;
  color: var(--color-text);
  margin-bottom: 6px;
  line-height: 1.25;
}

.page-subtitle {
  font-size: 14.5px;
  color: var(--color-text-muted);
  max-width: 620px;
  line-height: 1.6;
}

/* ── Typography ───────────────────────────────────────────── */
h1, h2, h3, h4 { color: var(--color-text); line-height: 1.3; font-weight: 600; }
h2 { font-size: 19px; margin: 34px 0 13px; }
h3 { font-size: 15.5px; margin: 26px 0 9px; color: var(--color-accent-hover); }
h4 { font-size: 13.5px; margin: 18px 0 7px; }

p { margin-bottom: 13px; color: var(--color-text-muted); }
p:last-child { margin-bottom: 0; }
strong { color: var(--color-text); font-weight: 600; }

ul, ol { margin: 0 0 13px 0; padding-left: 1.5em; color: var(--color-text-muted); }
li { margin-bottom: 3px; }
li:last-child { margin-bottom: 0; }

hr { border: none; border-top: 1px solid var(--color-border); margin: 26px 0; }

blockquote {
  border-left: 3px solid var(--color-accent);
  margin: 14px 0;
  padding: 10px 16px;
  background: var(--color-accent-glow);
  border-radius: 0 var(--radius) var(--radius) 0;
  color: var(--color-text-muted);
}

/* ── Tables ───────────────────────────────────────────────── */
.table-wrap {
  overflow-x: auto;
  margin: 14px 0;
  border-radius: var(--radius);
  border: 1px solid var(--color-border);
}

table { width: 100%; border-collapse: collapse; font-size: 13px; }

th {
  background: var(--color-bg-raised);
  color: var(--color-text);
  font-weight: 600;
  padding: 9px 13px;
  text-align: left;
  border-bottom: 1px solid var(--color-border);
  font-size: 11.5px;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  white-space: nowrap;
}

td {
  padding: 8px 13px;
  border-bottom: 1px solid var(--color-border);
  color: var(--color-text-muted);
  vertical-align: top;
}

tr:last-child td { border-bottom: none; }
tr:hover td { background: var(--color-accent-glow); }

/* ── Code ─────────────────────────────────────────────────── */
code {
  font-family: var(--font-mono);
  font-size: 0.875em;
  background: var(--color-bg-raised);
  padding: 2px 5px;
  border-radius: 4px;
  color: var(--color-accent-hover);
  border: 1px solid var(--color-border);
}

pre {
  background: var(--color-bg-raised);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  padding: 15px 17px;
  overflow-x: auto;
  margin: 14px 0;
  line-height: 1.5;
}

pre code {
  background: none;
  border: none;
  padding: 0;
  font-size: 12.5px;
  color: var(--color-text);
}

/* ── Cards ────────────────────────────────────────────────── */
.card {
  background: var(--color-bg-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: 18px 20px;
  transition: border-color 0.2s, transform 0.2s, box-shadow 0.2s;
}

.card:hover {
  border-color: var(--color-border-light);
  transform: translateY(-1px);
  box-shadow: 0 4px 18px rgba(0,0,0,0.28);
}

.card-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
  gap: 14px;
  margin: 16px 0;
}

.card-grid-2 {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 14px;
  margin: 16px 0;
}

/* ── Badges ───────────────────────────────────────────────── */
.badge {
  display: inline-flex;
  align-items: center;
  gap: 3px;
  padding: 2px 8px;
  border-radius: 100px;
  font-size: 10.5px;
  font-weight: 700;
  letter-spacing: 0.03em;
  border: 1px solid;
}

.badge-core    { background: rgba(34,197,94,0.13); color: #86efac; border-color: rgba(34,197,94,0.28); }
.badge-ref     { background: rgba(245,158,11,0.13); color: #fcd34d; border-color: rgba(245,158,11,0.28); }
.badge-admin   { background: rgba(148,163,184,0.1); color: #94a3b8; border-color: rgba(148,163,184,0.22); }
.badge-accent  { background: var(--color-accent-dim); color: var(--color-accent-hover); border-color: rgba(59,130,246,0.28); }
.badge-danger  { background: rgba(239,68,68,0.13); color: #fca5a5; border-color: rgba(239,68,68,0.28); }
.badge-warn    { background: rgba(245,158,11,0.13); color: #fcd34d; border-color: rgba(245,158,11,0.28); }
.badge-success { background: rgba(34,197,94,0.13); color: #86efac; border-color: rgba(34,197,94,0.28); }

/* ── Buttons ──────────────────────────────────────────────── */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 8px 15px;
  border-radius: var(--radius);
  font-size: 13px;
  font-weight: 500;
  cursor: pointer;
  text-decoration: none !important;
  transition: all 0.15s;
  border: none;
  line-height: 1;
}

.btn-primary { background: var(--color-accent); color: #fff; }
.btn-primary:hover { background: var(--color-accent-hover); color: #fff; }

.btn-secondary { background: var(--color-bg-raised); color: var(--color-text); border: 1px solid var(--color-border); }
.btn-secondary:hover { border-color: var(--color-accent); color: var(--color-accent); }

.btn-ghost { background: none; color: var(--color-text-muted); border: 1px solid var(--color-border); }
.btn-ghost:hover { color: var(--color-text); border-color: var(--color-border-light); }

/* ── Hero ─────────────────────────────────────────────────── */
.hero {
  padding: 44px 0 28px;
}

.hero-eyebrow {
  font-size: 10.5px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  color: var(--color-accent);
  margin-bottom: 12px;
}

.hero-title {
  font-size: 36px;
  font-weight: 800;
  line-height: 1.15;
  color: var(--color-text);
  margin-bottom: 14px;
  letter-spacing: -0.02em;
}

.hero-title .gradient {
  background: linear-gradient(130deg, var(--color-accent) 0%, #818cf8 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.hero-desc {
  font-size: 15.5px;
  color: var(--color-text-muted);
  max-width: 540px;
  line-height: 1.7;
  margin-bottom: 24px;
}

.hero-actions { display: flex; gap: 10px; flex-wrap: wrap; }

.hero-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 20px;
  margin-top: 24px;
  padding-top: 20px;
  border-top: 1px solid var(--color-border);
}

.hero-meta-item { font-size: 13px; color: var(--color-text-muted); }
.hero-meta-item strong { color: var(--color-text); }

/* ── Section header ───────────────────────────────────────── */
.section-header {
  display: flex;
  align-items: baseline;
  gap: 10px;
  margin-bottom: 14px;
}

.section-title { font-size: 17px; font-weight: 700; color: var(--color-text); }
.section-count { font-size: 12px; color: var(--color-text-dim); }

/* ── Block cards (curriculum) ─────────────────────────────── */
.block-card {
  background: var(--color-bg-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  margin-bottom: 20px;
  overflow: hidden;
}

.block-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 14px 18px;
  background: var(--color-bg-raised);
  border-bottom: 1px solid var(--color-border);
  gap: 12px;
}

.block-header-left { display: flex; align-items: center; gap: 10px; flex: 1; min-width: 0; }

.block-num {
  width: 28px;
  height: 28px;
  background: var(--color-accent);
  border-radius: 7px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 800;
  font-size: 13px;
  color: #fff;
  flex-shrink: 0;
}

.block-title { font-size: 14.5px; font-weight: 700; color: var(--color-text); }
.block-goal  { font-size: 12.5px; color: var(--color-text-muted); margin-top: 1px; }

.block-duration {
  font-size: 11.5px;
  font-weight: 600;
  padding: 3px 10px;
  background: var(--color-accent-dim);
  border: 1px solid rgba(59,130,246,0.22);
  color: var(--color-accent-hover);
  border-radius: 100px;
  flex-shrink: 0;
}

.block-body { padding: 18px; }

/* ── Step cards (exercises) ───────────────────────────────── */
.step-card {
  background: var(--color-bg-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: 18px 20px 18px 60px;
  margin-bottom: 14px;
  position: relative;
}

.step-num {
  position: absolute;
  left: 18px;
  top: 18px;
  width: 28px;
  height: 28px;
  background: var(--color-accent);
  color: #fff;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
  font-size: 12.5px;
}

.step-title { font-size: 14.5px; font-weight: 600; color: var(--color-text); margin-bottom: 6px; }
.step-duration { font-size: 11px; color: var(--color-accent); font-weight: 600; margin-bottom: 8px; }

/* ── Module cards ─────────────────────────────────────────── */
.module-card {
  background: var(--color-bg-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  overflow: hidden;
  transition: border-color 0.2s, box-shadow 0.2s;
  margin-bottom: 10px;
}

.module-card:hover { border-color: var(--color-border-light); }

.module-card-header {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  padding: 16px 18px 10px;
}

.mod-num {
  width: 34px;
  height: 34px;
  border-radius: 8px;
  background: var(--color-accent-dim);
  border: 1px solid rgba(59,130,246,0.28);
  color: var(--color-accent);
  font-weight: 700;
  font-size: 12.5px;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

.mod-info { flex: 1; min-width: 0; }
.mod-title { font-size: 14px; font-weight: 600; color: var(--color-text); margin-bottom: 3px; line-height: 1.35; }
.mod-desc  { font-size: 12.5px; color: var(--color-text-muted); line-height: 1.45; }

.module-card-footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 8px 18px;
  border-top: 1px solid var(--color-border);
  background: rgba(0,0,0,0.12);
}

.mod-stats { display: flex; gap: 14px; }
.mod-stat  { font-size: 11px; color: var(--color-text-dim); display: flex; align-items: center; gap: 4px; }

.expand-btn {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  padding: 4px 10px;
  background: none;
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  color: var(--color-text-muted);
  font-size: 12px;
  cursor: pointer;
  transition: all 0.15s;
  font-family: var(--font-sans);
}

.expand-btn:hover { border-color: var(--color-accent); color: var(--color-accent); }
.expand-btn.open  { border-color: var(--color-accent); color: var(--color-accent); background: var(--color-accent-dim); }

.module-content-area {
  padding: 0 18px 18px;
  border-top: 1px solid var(--color-border);
  display: none;
}

.module-content-area.open { display: block; }

.module-loading {
  padding: 24px;
  color: var(--color-text-muted);
  font-size: 13px;
  text-align: center;
}

.module-content-area h1 { font-size: 17px; margin-top: 18px; }
.module-content-area h2 { font-size: 15px; margin-top: 22px; }
.module-content-area h3 { font-size: 13.5px; margin-top: 16px; }
.module-content-area p, .module-content-area li { font-size: 13.5px; }
.module-content-area table { font-size: 12.5px; }

/* ── Exercise tabs ────────────────────────────────────────── */
.exercise-tabs {
  display: flex;
  gap: 2px;
  margin-bottom: 22px;
  background: var(--color-bg-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  padding: 4px;
  width: fit-content;
  flex-wrap: wrap;
}

.ex-tab {
  padding: 7px 14px;
  border-radius: 5px;
  font-size: 13px;
  font-weight: 500;
  cursor: pointer;
  color: var(--color-text-muted);
  background: none;
  border: none;
  transition: all 0.15s;
  font-family: var(--font-sans);
}

.ex-tab.active { background: var(--color-accent); color: #fff; }
.ex-tab:hover:not(.active) { color: var(--color-text); background: var(--color-bg-raised); }

.ex-panel { display: none; }
.ex-panel.active { display: block; }

/* ── Callout ──────────────────────────────────────────────── */
.callout {
  padding: 12px 15px;
  border-radius: var(--radius);
  border: 1px solid;
  margin: 14px 0;
  font-size: 13.5px;
  display: flex;
  gap: 10px;
  align-items: flex-start;
}

.callout-icon { font-size: 15px; flex-shrink: 0; margin-top: 1px; }
.callout-tip  { background: rgba(34,197,94,0.07); border-color: rgba(34,197,94,0.25); color: #86efac; }
.callout-info { background: rgba(56,189,248,0.07); border-color: rgba(56,189,248,0.25); color: #7dd3fc; }
.callout-warn { background: rgba(245,158,11,0.07); border-color: rgba(245,158,11,0.25); color: #fcd34d; }

/* ── Resources ────────────────────────────────────────────── */
.resource-group { margin-bottom: 32px; }

.resource-group-title {
  font-size: 11.5px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--color-text-dim);
  margin-bottom: 10px;
  padding-bottom: 7px;
  border-bottom: 1px solid var(--color-border);
}

.resource-link {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  padding: 11px 13px;
  background: var(--color-bg-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  margin-bottom: 7px;
  text-decoration: none !important;
  transition: border-color 0.15s;
}

.resource-link:hover { border-color: var(--color-accent); }

.resource-icon { font-size: 17px; flex-shrink: 0; margin-top: 2px; }

.resource-text strong { display: block; font-size: 13.5px; color: var(--color-text); margin-bottom: 1px; }
.resource-text span   { font-size: 12px; color: var(--color-text-muted); }

.coming-soon {
  display: inline-flex;
  align-items: center;
  gap: 3px;
  padding: 2px 7px;
  background: rgba(148,163,184,0.1);
  border: 1px solid rgba(148,163,184,0.2);
  color: var(--color-text-dim);
  border-radius: 100px;
  font-size: 10px;
  font-weight: 600;
  margin-left: 6px;
}

/* ── Quick facts ──────────────────────────────────────────── */
.facts-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
  gap: 10px;
  margin: 14px 0;
}

.fact-item {
  background: var(--color-bg-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  padding: 12px 14px;
}

.fact-label {
  font-size: 10.5px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--color-text-dim);
  margin-bottom: 4px;
}

.fact-value { font-size: 13.5px; color: var(--color-text); font-weight: 500; }

/* ── NIST grid ────────────────────────────────────────────── */
.nist-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 8px;
  margin: 14px 0;
}

.nist-item {
  background: var(--color-bg-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  padding: 10px 12px;
  text-align: center;
}

.nist-id   { font-size: 17px; font-weight: 800; color: var(--color-accent); margin-bottom: 3px; }
.nist-name { font-size: 12.5px; font-weight: 600; color: var(--color-text); margin-bottom: 3px; }
.nist-desc { font-size: 11px; color: var(--color-text-muted); line-height: 1.3; }

/* ── Discussion box ───────────────────────────────────────── */
.discussion-box {
  background: var(--color-bg-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: 16px 18px;
  margin: 14px 0;
}

.discussion-box h4 { margin-top: 0; margin-bottom: 10px; color: var(--color-accent-hover); }

/* ── Checklist prereq ─────────────────────────────────────── */
.prereq-list {
  list-style: none;
  padding: 0;
  margin: 12px 0;
}

.prereq-list li {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  padding: 8px 0;
  border-bottom: 1px solid var(--color-border);
  font-size: 13.5px;
  color: var(--color-text-muted);
}

.prereq-list li:last-child { border-bottom: none; }

.prereq-icon {
  width: 18px;
  height: 18px;
  border-radius: 50%;
  background: var(--color-accent-dim);
  border: 1px solid rgba(59,130,246,0.28);
  color: var(--color-accent);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 9px;
  flex-shrink: 0;
  margin-top: 1px;
}

/* ── Separator label ──────────────────────────────────────── */
.sep-label {
  display: flex;
  align-items: center;
  gap: 10px;
  margin: 26px 0 18px;
  font-size: 11.5px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--color-text-dim);
}

.sep-label::before,
.sep-label::after {
  content: '';
  flex: 1;
  height: 1px;
  background: var(--color-border);
}

/* ── Utilities ────────────────────────────────────────────── */
.flex         { display: flex; }
.flex-wrap    { flex-wrap: wrap; }
.items-center { align-items: center; }
.gap-8  { gap: 8px; }
.gap-12 { gap: 12px; }
.mt-8   { margin-top: 8px; }
.mt-16  { margin-top: 16px; }
.mt-24  { margin-top: 24px; }
.mb-8   { margin-bottom: 8px; }
.mb-16  { margin-bottom: 16px; }
.mb-24  { margin-bottom: 24px; }
.text-muted   { color: var(--color-text-muted) !important; }
.text-accent  { color: var(--color-accent) !important; }
.text-success { color: var(--color-success) !important; }
.text-warn    { color: var(--color-warning) !important; }
.text-danger  { color: var(--color-danger) !important; }

[id] { scroll-margin-top: 20px; }

/* ── Responsive ───────────────────────────────────────────── */
@media (max-width: 900px) {
  .sidebar {
    position: fixed;
    left: -100%;
    top: 0;
    height: 100%;
    z-index: 150;
    transition: left 0.25s ease;
  }
  .sidebar.open { left: 0; }
  .mobile-header { display: flex; }
  .content { padding: 22px 18px; }
  .hero-title { font-size: 26px; }
  .card-grid-2 { grid-template-columns: 1fr; }
  .nist-grid { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 600px) {
  .card-grid { grid-template-columns: 1fr; }
  .facts-grid { grid-template-columns: repeat(2, 1fr); }
  .nist-grid { grid-template-columns: repeat(2, 1fr); }
  .hero-title { font-size: 22px; }
}

/* ── Print ────────────────────────────────────────────────── */
@media print {
  .sidebar, .mobile-header { display: none !important; }
  body { background: #fff; color: #000; font-size: 11pt; }
  a { color: #1a56db; }
  code, pre { background: #f5f5f5; color: #000; border: 1px solid #ccc; }
  .card, .step-card, .block-card { break-inside: avoid; }
  .module-content-area { display: block !important; }
}