:root {
  --navy:    #2a1647;
  --navy2:   #23133a;
  --navy3:   #1f1232;
  --navy5:   #223350;
  --amber:   #883CF0;
  --amber2:  #873cf09f;
  --amber3:  rgba(255, 217, 128, 0.321);
  --cream:   #f0e6c8;
  --cream2:  #d8c898;
  --teal:    #30c8b8;
  --teal2:   #50e8d8;
  --rose:    #e85050;
  --rose2:   #ff7070;
  --sage:    #60c890;
  --sage2:   #80e8a8;
  --text:    #c8d8e8;
  --text-dim:#d6d6d6;
  --text-b:  #c8d6e5;
  --border:  #3a1c63;
  --border2: #5e309d;
  --blueprint-line: rgba(201, 48, 232, 0.06);
}

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

.secret-server-vaulting-guide {
  background: #191127;
  color: var(--text);
  font-size: 15px;
  line-height: 1.65;
  overflow-x: hidden;
  position: relative;
  height: 100vh;
  overflow-y: auto;
}

/* Blueprint grid overlay */
.secret-server-vaulting-guide::before {
  content: '';
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(var(--blueprint-line) 1px, transparent 1px),
    linear-gradient(90deg, var(--blueprint-line) 1px, transparent 1px),
    linear-gradient(rgba(232,160,48,0.02) 1px, transparent 1px),
    linear-gradient(90deg, rgba(232,160,48,0.02) 1px, transparent 1px);
  background-size: 200px 200px, 200px 200px, 40px 40px, 40px 40px;
  pointer-events: none;
  z-index: 0;
}

/* ── TOPBAR ── */
.topbar {
  position: sticky; top: 0; z-index: 1;
  background: #180f26;
  backdrop-filter: blur(16px);
  border-bottom: 1px solid var(--border);
  display: flex; align-items: center; justify-content: space-between;
  padding: 0 40px; height: 56px;
}
.topbar-left {
  display: flex; align-items: center; gap: 16px;
  font-size: 11px; color: var(--text-dim);
  text-transform: uppercase;
}
.topbar-pip {
  width: 6px; height: 6px; border-radius: 50%;
  background: #883CF0; animation: breathe 3s ease-in-out infinite;
}
.module-badge {
  background: #23133a; border: 1px solid #3a1c63;
  color: var(--amber); font-size: 10px;
  font-weight: 500; padding: 3px 10px;
  text-transform: uppercase;
}
.progress-wrap { display: flex; align-items: center; gap: 12px; }
.progress-label { font-size: 10px; color: var(--text-dim); }
.progress-track {
  width: 180px; height: 2px; background: #282035; position: relative;
}
.progress-fill {
  height: 100%; background: linear-gradient(90deg, var(--amber), var(--amber2));
  width: 0%; transition: width 0.6s cubic-bezier(0.4,0,0.2,1);
  position: relative;
}
.progress-fill::after {
  content: ''; position: absolute; right: -1px; top: -2px;
  width: 6px; height: 6px; border-radius: 50%; background: var(--amber2);
  box-shadow: 0 0 8px var(--amber);
}

/* ── HERO ── */
.hero {
  position: relative;
  padding: 100px 40px 70px; max-width: 1280px; margin: 0 auto;
}
.hero-eyebrow {
  display: flex; align-items: center; gap: 16px; margin-bottom: 28px;
}
.eyebrow-line { flex: 1; height: 1px; background: var(--border); max-width: 60px; }
.eyebrow-text {
  font-size: 10px;
  color: var(--amber); text-transform: uppercase;
}
.hero h1 {
  font-size: clamp(52px, 8vw, 104px);
  line-height: 0.9; color: var(--text-b); font-weight: 900;
}
.hero h1 .line2 { color: var(--amber); font-style: italic; }
.hero-desc {
  max-width: 520px; margin-top: 24px; font-size: 14px; color: var(--text-dim);
  line-height: 1.8; font-weight: 300; 
}
.hero-pills {
  display: flex; flex-wrap: wrap; gap: 10px; margin-top: 36px;
}
.pill {
  font-size: 10px; 
  text-transform: uppercase; padding: 6px 14px; border: 1px solid var(--border2);
  color: var(--text-dim); background: var(--navy2);
}
.pill span { color: var(--amber); margin-right: 6px; }

/* decorative corner marks */
.hero::before, .hero::after {
  content: ''; position: absolute;
  width: 40px; height: 40px;
  border-color: var(--amber); border-style: solid; opacity: 0.4;
}
.hero::before { top: 80px; left: 20px; border-width: 2px 0 0 2px; }
.hero::after  { bottom: 50px; right: 20px; border-width: 0 2px 2px 0; }

/* ── CHAPTER NAV ── */
.chapter-nav {
  position: sticky; top: 56px; z-index: 1;
  background: #180f26;
  backdrop-filter: blur(16px);
  border-bottom: 1px solid var(--border);
  overflow-x: auto; scrollbar-width: none;
}
.chapter-nav::-webkit-scrollbar { display: none; }
.chapter-nav-inner {
  display: flex; max-width: 1280px; margin: 0 auto; padding: 0 40px;
}
.ch-tab {
  display: flex; flex-direction: column; align-items: center; justify-content: center;
  padding: 0 24px; height: 64px; cursor: pointer; border-bottom: 2px solid transparent;
  transition: all 0.25s; white-space: nowrap; min-width: 140px;
  background: none; border-top: none; border-left: none; border-right: none;
  position: relative;
}
.ch-tab:hover .ch-num { color: var(--amber2); }
.ch-tab:hover .ch-lbl { color: var(--text); }
.ch-tab.active { border-bottom-color: var(--amber); }
.ch-tab.active .ch-num { color: var(--amber); }
.ch-tab.active .ch-lbl { color: var(--text-b); }
.ch-tab.done .ch-num::after { content: ' ✓'; color: var(--sage); }
.ch-num {
  font-size: 9px;
  color: var(--text-dim); text-transform: uppercase; margin-bottom: 4px;
}
.ch-lbl {
  font-size: 11px; font-weight: 600;
  color: var(--text-dim); text-transform: uppercase;
}

/* ── MAIN ── */
main {
  position: relative;
  max-width: 1280px; margin: 0 auto; padding: 0 40px 100px;
}

.chapter { display: none; animation: rise 0.45s cubic-bezier(0.16,1,0.3,1) both; }
.chapter.active { display: block; }
@keyframes rise {
  from { opacity: 0; transform: translateY(24px); }
  to   { opacity: 1; transform: translateY(0); }
}

/* ── CHAPTER HEADER ── */
.ch-header {
  padding: 60px 0 40px;
  display: grid; grid-template-columns: 1fr auto;
  align-items: end; gap: 40px; border-bottom: 1px solid var(--border);
  margin-bottom: 48px;
}
.ch-header h2 {
  font-size: clamp(36px, 4vw, 58px);
  line-height: 1.05; color: var(--text-b); font-weight: 700;
}
.ch-header h2 em { font-style: italic; color: var(--amber); }
.ch-meta {
  display: flex; flex-direction: column; gap: 8px; text-align: right; flex-shrink: 0;
}
.ch-meta-item { font-size: 10px;  color: var(--text-dim); }
.ch-meta-item strong { color: var(--amber2); display: block; font-size: 14px;}

/* ── NOTICE BLOCKS ── */
.notice {
  display: flex; gap: 16px; padding: 20px 22px; margin: 24px 0;
  border-left: 3px solid; font-size: 13px; line-height: 1.75;
  background: var(--navy2);
}
.notice.info    { border-color: var(--teal); }
.notice.warn    { border-color: var(--amber); }
.notice.danger  { border-color: var(--rose); }
.notice.success { border-color: var(--sage); }
.notice-icon { font-size: 20px; flex-shrink: 0; line-height: 1.4; }
.notice-body strong {
  display: block; font-size: 9px;
  text-transform: uppercase; margin-bottom: 5px;
}
.notice.info    .notice-body strong { color: var(--teal); }
.notice.warn    .notice-body strong { color: var(--amber); }
.notice.danger  .notice-body strong { color: var(--rose); }
.notice.success .notice-body strong { color: var(--sage); }

/* ── CODE BLOCKS ── */
.code-wrap {
  margin: 24px 0; border: 1px solid var(--border2); overflow: hidden;
  background: #07080f;
}
.code-bar {
  display: flex; justify-content: space-between; align-items: center;
  padding: 9px 16px; background: var(--navy3); border-bottom: 1px solid var(--border);
}
.code-tag {
  font-size: 9px; 
  text-transform: uppercase; color: var(--text-dim);
  display: flex; align-items: center; gap: 8px;
}
.code-tag::before {
  content: ''; width: 8px; height: 8px; border-radius: 50%;
  background: var(--amber); opacity: 0.7;
}
.copy-btn {
  font-size: 9px; 
  text-transform: uppercase; color: var(--amber); background: #23133a;
  border: 1px solid #3a1c63; padding: 4px 12px; cursor: pointer;
  transition: all 0.15s;
}
.copy-btn:hover { background: #1f1232; }
.copy-btn.ok { color: var(--sage); border-color: var(--sage); background: rgba(96,200,144,0.08); }
pre {
  padding: 22px 20px; font-size: 12.5px;
  line-height: 1.9; overflow-x: auto; color: #8ca0b8;
}
.t-cmd  { color: #60c8ff; }
.t-flag { color: var(--amber2); }
.t-str  { color: var(--sage2); }
.t-kw   { color: #d880ff; }
.t-cmt  { color: #405060; font-style: italic; }
.t-val  { color: var(--amber3); }
.t-err  { color: var(--rose2); }
.t-ok   { color: var(--sage); }

/* ── PROCESS STEPS ── */
.process {
  display: flex; flex-direction: column; margin: 32px 0;
  counter-reset: proc;
}
.proc-step {
  display: grid; grid-template-columns: 72px 1fr;
  counter-increment: proc;
}
.proc-step:not(:last-child) .proc-left::after {
  content: ''; display: block; width: 1px; flex: 1;
  background: linear-gradient(to bottom, var(--border2), transparent);
  margin: 8px auto 0;
}
.proc-left {
  display: flex; flex-direction: column; align-items: center; padding-top: 2px;
}
.proc-num {
  width: 44px; height: 44px; border-radius: 50%;
  border: 1.5px solid var(--amber); background: #1f1232;
  display: flex; align-items: center; justify-content: center;
  font-size: 13px; font-weight: 500; color: var(--amber);
  flex-shrink: 0; position: relative; z-index: 1;
}
.proc-right { padding: 0 0 40px 24px; }
.proc-title {
  font-size: 14px; font-weight: 700;
   text-transform: uppercase;
  color: var(--text-b); margin-bottom: 8px;
}
.proc-body { font-size: 13px; color: var(--text-dim); line-height: 1.75; }

/* ── CARD GRIDS ── */
.cards { display: grid; grid-template-columns: repeat(auto-fit, minmax(260px, 1fr)); gap: 2px; margin: 28px 0; }
.card {
  background: var(--navy2); padding: 28px; border: 1px solid var(--border);
  position: relative; transition: border-color 0.2s, background 0.2s;
}
.card:hover { border-color: var(--border2); background: var(--navy3); }
.card-accent { border-top: 2px solid var(--amber); }
.card-teal   { border-top: 2px solid var(--teal); }
.card-rose   { border-top: 2px solid var(--rose); }
.card-sage   { border-top: 2px solid var(--sage); }
.card-icon { font-size: 30px; margin-bottom: 14px; display: block; }
.card h3 {
  font-size: 11px; font-weight: 700;
  text-transform: uppercase; color: var(--text-b); margin-bottom: 8px;
}
.card p { font-size: 13px; color: var(--text-dim); line-height: 1.7; }

/* ── INTERACTIVE CONFIG BUILDER ── */
.config-builder {
  background: var(--navy2); border: 1px solid var(--border2);
  margin: 32px 0; overflow: hidden;
}
.cb-header {
  padding: 20px 28px; background: var(--navy3); border-bottom: 1px solid var(--border);
  display: flex; align-items: center; justify-content: space-between;
}
.cb-title {
  font-size: 11px;
  color: var(--amber); text-transform: uppercase;
}
.cb-subtitle { font-size: 10px; color: var(--text-dim); margin-top: 3px; }
.cb-status { font-size: 10px; color: var(--sage); }
.cb-body { padding: 28px; }
.field-group { margin-bottom: 22px; }
.field-label {
  font-size: 10px;
  text-transform: uppercase; color: var(--text-dim); margin-bottom: 7px; display: block;
}
.field-required { color: var(--rose2); margin-left: 2px; }
.field-hint { font-size: 11px; color: var(--text-dim); margin-top: 5px; line-height: 1.5; }
.field-row { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
.field-row.three { grid-template-columns: 1fr 1fr 1fr; }
input[type=text], input[type=number], input[type=password], select, textarea {
  width: 100%; background: var(--navy); border: 1px solid var(--border2);
  color: var(--text-b); font-size: 12px;
  padding: 10px 14px; outline: none; transition: border-color 0.18s, box-shadow 0.18s;
  /* -webkit-appearance: none; */
}
input:focus, select:focus, textarea:focus {
  border-color: var(--amber); box-shadow: 0 0 0 2px rgba(232,160,48,0.12);
}
select { cursor: pointer; }
select option { background: var(--navy2); }
textarea { resize: vertical; min-height: 80px; }
.toggle-row {
  display: flex; align-items: center; justify-content: space-between;
  padding: 12px 0; border-bottom: 1px solid var(--border);
}
.toggle-row:last-child { border-bottom: none; }
.toggle-label {
  font-size: 13px; color: var(--text);
}
.toggle-desc { font-size: 11px; color: var(--text-dim); margin-top: 2px; }
.toggle {
  width: 44px; height: 24px; background: transparent; border: 1px solid var(--border2);
  border-radius: 12px; position: relative; cursor: pointer; flex-shrink: 0;
  transition: all 0.25s;
}
.toggle.on { background: #2a1647; border-color: var(--amber); }
.toggle::after {
  content: ''; position: absolute; top: 2px; left: 2px;
  width: 18px; height: 18px; border-radius: 50%;
  background: var(--text-dim); transition: all 0.25s;
}
.toggle.on::after { left: 22px; background: var(--amber); }

/* ── DEPENDENCY MAPPER ── */
.dep-mapper {
  background: var(--navy2); border: 1px solid var(--border2); margin: 32px 0;
}
.dep-header {
  padding: 18px 24px; background: var(--navy3); border-bottom: 1px solid var(--border);
  font-size: 10px;
  text-transform: uppercase; color: var(--teal);
}
.dep-body { padding: 24px; }
.dep-tabs {
  display: flex; gap: 0; border-bottom: 1px solid var(--border); margin-bottom: 20px;
}
.dep-tab {
  padding: 10px 20px; font-size: 10px;
  text-transform: uppercase; color: var(--text-dim);
  cursor: pointer; border-bottom: 2px solid transparent; background: none;
  border-top: none; border-left: none; border-right: none; transition: all 0.18s;
}
.dep-tab:hover { color: var(--text); }
.dep-tab.active { color: var(--teal); border-bottom-color: var(--teal); }
.dep-pane { display: none; }
.dep-pane.active { display: block; }
.dep-form { display: grid; grid-template-columns: 1fr 1fr auto; gap: 10px; align-items: end; margin-bottom: 16px; }
.dep-add-btn {
  font-size: 10px; text-transform: uppercase;
  background: rgba(154, 48, 200, 0.1); border: 1px solid var(--teal); color: var(--teal);
  padding: 10px 16px; cursor: pointer; white-space: nowrap; transition: all 0.15s; height: 40px;
}
.dep-add-btn:hover { background: rgba(164, 48, 200, 0.2); }
.dep-table { width: 100%; border-collapse: collapse; }
.dep-table th {
  font-size: 9px; text-transform: uppercase;
  color: var(--text-dim); padding: 8px 12px; text-align: left;
  background: #883cf050; border-bottom: 1px solid var(--border);
}
.dep-table td {
  padding: 10px 12px; border-bottom: 1px solid var(--border);
  font-size: 11px; color: var(--text);
}
.dep-table tr:hover td { background: #1f1232; }
.dep-table .td-status { color: var(--sage); }
.dep-table .td-type { color: var(--teal2); }
.dep-rm {
  font-size: 9px; color: var(--rose);
  background: #2a1647; border: 1px solid #3a1c63;
  padding: 3px 8px; cursor: pointer; transition: all 0.15s;
}
.dep-rm:hover { background: #1f1232; }
.dep-empty {
  font-size: 11px; color: var(--text-dim);
  padding: 24px; text-align: center; border: 1px dashed var(--border);
}

/* ── HEARTBEAT SIMULATOR ── */
.heartbeat-sim {
  background: var(--navy2); border: 1px solid var(--border2); margin: 32px 0; overflow: hidden;
}
.hb-header {
  padding: 18px 24px; background: var(--navy3); border-bottom: 1px solid var(--border);
  display: flex; align-items: center; justify-content: space-between;
}
.hb-title { font-size: 10px;  text-transform: uppercase; color: var(--rose); }
.hb-live {
  display: flex; align-items: center; gap: 8px;
  font-size: 10px; color: var(--text-dim);
}
.hb-dot { width: 8px; height: 8px; border-radius: 50%; background: var(--sage); animation: breathe 2.2s ease-in-out infinite; }
.hb-body { padding: 28px; }
.hb-controls { display: flex; gap: 12px; margin-bottom: 28px; flex-wrap: wrap; }
.hb-btn {
  font-size: 10px; text-transform: uppercase;
  padding: 9px 18px; cursor: pointer; border: 1px solid; transition: all 0.18s;
}
.hb-btn.primary { color: var(--amber); border-color: var(--amber); background: #d030e814; }
.hb-btn.primary:hover { background: #d412f138; }
.hb-btn.success { color: var(--sage); border-color: var(--sage); background: rgba(96,200,144,0.08); }
.hb-btn.success:hover { background: rgba(96,200,144,0.18); }
.hb-btn.danger { color: var(--rose); border-color: var(--rose); background: rgba(232,80,80,0.08); }
.hb-btn.danger:hover { background: rgba(232,80,80,0.18); }
.hb-btn:disabled { opacity: 0.35; cursor: not-allowed; }
.hb-log {
  background: #050810; border: 1px solid var(--border); padding: 0;
  height: 280px; overflow-y: auto; font-size: 11.5px;
}
.hb-log::-webkit-scrollbar { width: 4px; }
.hb-log::-webkit-scrollbar-track { background: var(--navy); }
.hb-log::-webkit-scrollbar-thumb { background: var(--border2); }
.log-entry {
  padding: 8px 16px; border-bottom: 1px solid rgba(255,255,255,0.03);
  display: grid; grid-template-columns: 140px 90px 1fr;
  gap: 12px; line-height: 1.4;
  animation: slideIn 0.3s ease both;
}
@keyframes slideIn { from { opacity: 0; transform: translateX(-8px); } }
.log-time { color: var(--text-dim); }
.log-lvl { font-weight: 600; text-align: center; border-radius: 2px; padding: 1px 0; }
.log-lvl.ok   { color: var(--sage); }
.log-lvl.warn { color: var(--amber); }
.log-lvl.err  { color: var(--rose); }
.log-lvl.info { color: var(--teal); }
.log-msg { color: var(--text); }
.hb-metrics {
  display: grid; grid-template-columns: repeat(4, 1fr); gap: 2px; margin-top: 16px;
}
.hb-metric {
  background: var(--navy3); padding: 16px; text-align: center;
  border: 1px solid var(--border);
}
.hb-metric-val {
  font-size: 28px; font-weight: 400;
  color: var(--text-b); display: block; line-height: 1.1;
}
.hb-metric-val.ok   { color: var(--sage); }
.hb-metric-val.warn { color: var(--amber); }
.hb-metric-val.err  { color: var(--rose); }
.hb-metric-lbl {
  font-size: 9px;
  color: var(--text-dim); text-transform: uppercase; margin-top: 6px; display: block;
}

/* ── DATA TABLES ── */
.dtable { width: 100%; border-collapse: collapse; margin: 24px 0; font-size: 13px; }
.dtable thead tr { background: #883cf050; border-bottom: 1px solid var(--border2); }
.dtable th {
  padding: 11px 16px; text-align: left;
  font-size: 9px;
  text-transform: uppercase; color: var(--text-dim); font-weight: 600;
}
.dtable td { padding: 11px 16px; border-bottom: 1px solid var(--border); vertical-align: top; }
.dtable tr:hover td { background: #1f1232; }

/* ── BADGE ── */
.badge {
  display: inline-block; font-size: 9px; font-weight: 600;
 text-transform: uppercase; padding: 3px 8px; border-radius: 2px;
}
.b-amber  { background: rgba(232,160,48,0.12); color: var(--amber2); border: 1px solid rgba(232,160,48,0.25); }
.b-teal   { background: rgba(48,200,184,0.1); color: var(--teal2); border: 1px solid rgba(48,200,184,0.22); }
.b-rose   { background: rgba(232,80,80,0.1); color: var(--rose2); border: 1px solid rgba(232,80,80,0.22); }
.b-sage   { background: rgba(96,200,144,0.1); color: var(--sage2); border: 1px solid rgba(96,200,144,0.22); }
.b-dim    { background: rgba(255,255,255,0.04); color: var(--text-dim); border: 1px solid var(--border); }

/* ── ACCORDION ── */
.accordion { margin: 24px 0; }
.acc-item { border: 1px solid var(--border); margin-bottom: -1px; }
.acc-trigger {
  width: 100%; padding: 16px 22px; display: flex; align-items: center; justify-content: space-between;
  background: var(--navy2); cursor: pointer; text-align: left; border: none; transition: background 0.15s;
}
.acc-trigger:hover { background: var(--navy3); }
.acc-trigger-inner { display: flex; align-items: center; gap: 14px; }
.acc-icon { font-size: 18px; }
.acc-ttext {
  font-size: 12px; font-weight: 700;
  text-transform: uppercase; color: var(--text-b);
}
.acc-arrow {
  font-size: 16px; color: var(--text-dim);
  transition: transform 0.25s; display: block;
}
.acc-item.open .acc-arrow { transform: rotate(90deg); color: var(--amber); }
.acc-body { display: none; padding: 24px 22px; border-top: 1px solid var(--border); background: var(--navy); }
.acc-item.open .acc-body { display: block; }

/* ── QUIZ ── */
.quiz {
  background: var(--navy2); border: 1px solid var(--border2); padding: 32px;
  margin: 40px 0; position: relative; overflow: hidden;
}
.quiz::before {
  content: 'KNOWLEDGE CHECK';
  position: absolute; top: 0; right: 0;
  font-size: 9px;
  color: var(--navy3); background: var(--amber); padding: 4px 16px;
  font-weight: 700;
}
.quiz-q { font-size: 16px; font-weight: 600; color: var(--text-b); margin-bottom: 24px; line-height: 1.5; padding-right: 120px; }
.quiz-opts { display: flex; flex-direction: column; gap: 10px; }
.qopt {
  display: flex; align-items: flex-start; gap: 14px; padding: 14px 18px;
  background: var(--navy3); border: 1px solid var(--border); cursor: pointer;
  text-align: left; width: 100%; transition: all 0.15s; font-size: 13px; color: var(--text);
}
.qopt:hover:not([disabled]) { border-color: var(--border2); background: #1f1232; }
.qopt[disabled] { cursor: default; }
.qopt-ltr {
  font-size: 11px; width: 24px; height: 24px;
  display: flex; align-items: center; justify-content: center;
  background: #1f1232; border: 1px solid var(--border2);
  color: var(--text-dim); flex-shrink: 0; margin-top: 1px;
}
.qopt.correct { border-color: var(--sage); background: #77b25520; }
.qopt.correct .qopt-ltr { background: #1f1232; color: var(--sage); border-color: var(--sage); }
.qopt.wrong { border-color: var(--rose); background: #dc143c2b; opacity: 0.55; }
.quiz-fb {
  display: none; margin-top: 18px; padding: 16px 20px;
  border-left: 3px solid var(--sage); background: rgba(96,200,144,0.04);
  font-size: 13px; line-height: 1.75; color: var(--text);
}
.quiz-fb.show { display: block; }
.quiz-fb.wrong-fb { border-color: var(--rose); background: rgba(232,80,80,0.04); }

/* ── TIMELINE / ROTATION FLOW ── */
.rotation-flow {
  display: grid; grid-template-columns: repeat(6, 1fr); gap: 0; margin: 32px 0;
  border: 1px solid var(--border);
}
.rf-step {
  padding: 20px 16px; text-align: center; position: relative;
  border-right: 1px solid var(--border); background: var(--navy2);
}
.rf-step:last-child { border-right: none; }
.rf-step::after {
  content: '›'; position: absolute; right: -10px; top: 50%;
  transform: translateY(-50%); color: var(--border2);
  font-size: 20px; z-index: 1;
}
.rf-step:last-child::after { display: none; }
.rf-icon { font-size: 24px; display: block; margin-bottom: 8px; }
.rf-label {
  font-size: 9px;
  text-transform: uppercase; color: var(--text-dim); line-height: 1.5;
}
.rf-step.highlight { background: #1f1232; border-color: var(--amber); }
.rf-step.highlight .rf-label { color: var(--amber2); }

/* ── ANIMATIONS ── */
@keyframes breathe {
  0%, 100% { opacity: 1; transform: scale(1); }
  50% { opacity: 0.4; transform: scale(0.85); }
}

/* ── COMPLETION BANNER ── */
.completion {
  background: linear-gradient(135deg, #3a1c63, #684895);
  border: 1px solid #3a1c63; padding: 36px; text-align: center; margin: 48px 0;
}
.completion-icon { font-size: 48px; margin-bottom: 16px; display: block; }
.completion h3 {
  font-size: 32px; color: #eee7e7; margin-bottom: 10px; font-style: italic;
}
.completion p { font-size: 13px; color: var(--text-dim); line-height: 1.8; max-width: 500px; margin: 0 auto; }

/* ── DIVIDERS ── */
.section-break {
  display: flex; align-items: center; gap: 16px; margin: 40px 0 32px;
}
.section-break-line { flex: 1; height: 1px; background: var(--border); }
.section-break-label {
  font-size: 9px;
  text-transform: uppercase; color: var(--text-dim); flex-shrink: 0;
}

/* ── RESPONSIVE ── */
@media (max-width: 768px) {
  .topbar { padding: 0 16px; }
  .hero { padding: 60px 16px 40px; }
  .chapter-nav-inner { padding: 0 16px; }
  main { padding: 0 16px 60px; }
  .ch-header { grid-template-columns: 1fr; }
  .ch-meta { text-align: left; }
  .hb-metrics { grid-template-columns: repeat(2,1fr); }
  .rotation-flow { grid-template-columns: repeat(3,1fr); }
  .dep-form { grid-template-columns: 1fr; }
  .field-row { grid-template-columns: 1fr; }
  .field-row.three { grid-template-columns: 1fr; }
}

  /* SCROLLBAR */
  ::-webkit-scrollbar { width: 6px; height: 6px; }
  ::-webkit-scrollbar-track { background: #873cf015; }
  ::-webkit-scrollbar-thumb { background: #873cf015; border-radius: 3px; }