html {
  overflow-x: hidden;
  width: 100%;
  margin: 0;
  padding: 0;
}

.bert-page-spear-phishing,
.bert-page-spear-phishing *,
.bert-page-spear-phishing *::before,
.bert-page-spear-phishing *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
  max-width: 100%;
  word-wrap: break-word;
  overflow-wrap: break-word;
}

.bert-page-spear-phishing {
  --bg:         #070a0f;
  --surface:    #0d1117;
  --surface2:   #111820;
  --border:     rgba(255, 80, 80, 0.18);
  --red:        #ff3c3c;
  --red-dim:    #c0392b;
  --orange:     #ff6b35;
  --amber:      #ffb347;
  --green:      #00e676;
  --blue:       #29b6f6;
  --cyan:       #00e5ff;
  --text:       #ffffff;
  --text-muted: rgba(255, 255, 255, 0.55);
  --mono:       'Share Tech Mono', monospace;
  --head:       'Barlow Condensed', sans-serif;
  --body:       'Barlow', sans-serif;

  background:   var(--bg);
  color:        var(--text);
  font-family:  var(--body);
  min-height:   100vh;
  width:        100%;
  overflow-x:   hidden !important;
}

/* Scanline overlay */
.bert-page-spear-phishing::before {
  content: '';
  position: fixed;
  inset: 0;
  background: repeating-linear-gradient(
    0deg,
    transparent, transparent 2px,
    rgba(0,0,0,0.07) 2px, rgba(0,0,0,0.07) 4px
  );
  pointer-events: none;
  z-index: 9999;
}

/* Noise grain */
.bert-page-spear-phishing::after {
  content: '';
  position: fixed;
  inset: 0;
  background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 256 256' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='4' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)' opacity='0.04'/%3E%3C/svg%3E");
  pointer-events: none;
  z-index: 9998;
  opacity: 0.35;
}

/* ── HEADER ── */
.bert-page-spear-phishing header {
  padding: 2.5rem 3rem 1.5rem;
  border-bottom: 1px solid var(--border);
  position: relative;
  background: linear-gradient(180deg, rgba(255,60,60,0.04) 0%, transparent 100%);
}

.bert-page-spear-phishing .header-label {
  font-family: var(--mono);
  font-size: 0.7rem;
  color: var(--red);
  letter-spacing: 0.25em;
  text-transform: uppercase;
  margin-bottom: 0.5rem;
}

.bert-page-spear-phishing h1 {
  font-family: var(--head);
  font-size: clamp(1.8rem, 5vw, 4.2rem);
  font-weight: 900;
  line-height: 0.95;
  letter-spacing: -0.01em;
  text-transform: uppercase;
  overflow-wrap: break-word;
  word-wrap: break-word;
}

.bert-page-spear-phishing h1 span {
  color: var(--red);
}

.bert-page-spear-phishing .header-sub {
  margin-top: 0.75rem;
  font-size: 0.95rem;
  color: var(--text-muted);
  max-width: 600px;
  line-height: 1.6;
}

.bert-page-spear-phishing .threat-badge {
  position: absolute;
  top: 2rem;
  right: 3rem;
  font-family: var(--mono);
  font-size: 0.65rem;
  color: var(--red);
  border: 1px solid var(--red);
  padding: 0.3rem 0.7rem;
  letter-spacing: 0.15em;
  animation: sp-blink 2s step-end infinite;
}

@keyframes sp-blink {
  50% { opacity: 0.3; }
}

/* ── MAIN ── */
.bert-page-spear-phishing .sp-page-wrap {
  width: 100%;
  max-width: 100vw;
  overflow-x: hidden;
  position: relative;
}

.bert-page-spear-phishing main {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 0;
  max-width: 1200px;
  margin: 0 auto;
  padding: 2rem 3rem 4rem;
  width: 100%;
  min-width: 0;
}

/* ── OVERVIEW CARDS ── */
.bert-page-spear-phishing .overview-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 1px;
  border: 1px solid var(--border);
  margin-bottom: 2.5rem;
  background: var(--border);
}

.bert-page-spear-phishing .overview-card {
  background: var(--surface);
  padding: 1.4rem 1.6rem;
  position: relative;
}

.bert-page-spear-phishing .overview-card .oc-icon {
  font-size: 1.8rem;
  margin-bottom: 0.5rem;
  display: block;
}

.bert-page-spear-phishing .overview-card .oc-label {
  font-family: var(--mono);
  font-size: 0.62rem;
  color: var(--red);
  letter-spacing: 0.2em;
  text-transform: uppercase;
  margin-bottom: 0.3rem;
}

.bert-page-spear-phishing .overview-card .oc-value {
  font-family: var(--head);
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--text);
  line-height: 1.3;
}

.bert-page-spear-phishing .overview-card .oc-desc {
  font-size: 0.78rem;
  color: var(--text-muted);
  margin-top: 0.3rem;
  line-height: 1.5;
}

/* ── SECTION TITLE ── */
.bert-page-spear-phishing .section-title {
  font-family: var(--head);
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--text-muted);
  margin-bottom: 1.2rem;
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

.bert-page-spear-phishing .section-title::after {
  content: '';
  flex: 1;
  height: 1px;
  background: var(--border);
}

/* ── WORKFLOW STEPPER ── */
.bert-page-spear-phishing .workflow-container {
  position: relative;
  margin-bottom: 2.5rem;
}

.bert-page-spear-phishing .step-nav {
  display: flex;
  gap: 0;
  margin-bottom: 1.5rem;
  border: 1px solid var(--border);
  overflow: hidden;
}

.bert-page-spear-phishing .step-btn {
  flex: 1;
  min-width: 0;
  background: var(--surface);
  border: none;
  border-right: 1px solid var(--border);
  padding: 0.8rem 0.5rem;
  cursor: pointer;
  transition: background 0.2s;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.25rem;
  position: relative;
}

.bert-page-spear-phishing .step-btn:last-child {
  border-right: none;
}

.bert-page-spear-phishing .step-btn.active {
  background: rgba(255, 60, 60, 0.12);
}

.bert-page-spear-phishing .step-btn.active::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  height: 2px;
  background: var(--red);
}

.bert-page-spear-phishing .step-btn.completed .step-num {
  background: var(--red-dim);
  color: white;
}

.bert-page-spear-phishing .step-num {
  width: 26px;
  height: 26px;
  border-radius: 50%;
  border: 1.5px solid var(--border);
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--mono);
  font-size: 0.7rem;
  color: var(--text-muted);
  transition: all 0.2s;
}

.bert-page-spear-phishing .step-btn.active .step-num {
  border-color: var(--red);
  color: var(--red);
  background: rgba(255, 60, 60, 0.12);
}

.bert-page-spear-phishing .step-label {
  font-family: var(--head);
  font-size: 0.62rem;
  font-weight: 600;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--text-muted);
  text-align: center;
  line-height: 1.2;
}

.bert-page-spear-phishing .step-btn.active .step-label {
  color: var(--text);
}

/* ── STEP DETAIL PANEL ── */
.bert-page-spear-phishing .step-panel {
  display: none;
  animation: sp-fadeIn 0.3s ease;
}

.bert-page-spear-phishing .step-panel.active {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1.5rem;
}

@keyframes sp-fadeIn {
  from { opacity: 0; transform: translateY(6px); }
  to   { opacity: 1; transform: none; }
}

.bert-page-spear-phishing .step-main-card {
  background: var(--surface);
  border: 1px solid var(--border);
  padding: 1.8rem;
  position: relative;
  overflow: hidden;
}

.bert-page-spear-phishing .step-main-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 3px;
  height: 100%;
  background: var(--red);
}

.bert-page-spear-phishing .step-phase {
  font-family: var(--mono);
  font-size: 0.6rem;
  color: var(--red);
  letter-spacing: 0.25em;
  text-transform: uppercase;
  margin-bottom: 0.6rem;
}

.bert-page-spear-phishing .step-title {
  font-family: var(--head);
  font-size: 1.8rem;
  font-weight: 900;
  text-transform: uppercase;
  line-height: 1;
  margin-bottom: 0.75rem;
  color: var(--text);
}

.bert-page-spear-phishing .step-desc {
  font-size: 0.88rem;
  color: rgba(255, 255, 255, 0.75);
  line-height: 1.65;
  margin-bottom: 1.2rem;
}

.bert-page-spear-phishing .tactics-list {
  list-style: none;
}

.bert-page-spear-phishing .tactics-list li {
  font-size: 0.82rem;
  color: var(--text);
  padding: 0.5rem 0;
  border-bottom: 1px solid rgba(255, 255, 255, 0.06);
  display: flex;
  align-items: flex-start;
  gap: 0.6rem;
}

.bert-page-spear-phishing .tactics-list li:last-child {
  border-bottom: none;
}

.bert-page-spear-phishing .tactic-dot {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--red);
  flex-shrink: 0;
  margin-top: 0.35rem;
}

.bert-page-spear-phishing .step-side-card {
  background: var(--surface);
  border: 1px solid var(--border);
  padding: 1.8rem;
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

.bert-page-spear-phishing .side-card-title {
  font-family: var(--mono);
  font-size: 0.6rem;
  color: var(--amber);
  letter-spacing: 0.2em;
  text-transform: uppercase;
  margin-bottom: 0.25rem;
}

/* ── EXAMPLE BLOCK ── */
.bert-page-spear-phishing .example-block {
  background: rgba(0, 0, 0, 0.4);
  border: 1px solid rgba(255, 179, 71, 0.25);
  padding: 1rem 1.2rem;
  font-family: var(--mono);
  font-size: 0.74rem;
  line-height: 1.7;
  color: var(--text);
  position: relative;
}

.bert-page-spear-phishing .example-block .from      { color: var(--amber); }
.bert-page-spear-phishing .example-block .subject   { color: var(--cyan); }
.bert-page-spear-phishing .example-block .body-text { color: rgba(255, 255, 255, 0.8); }
.bert-page-spear-phishing .example-block .link      { color: var(--red); text-decoration: underline; }

.bert-page-spear-phishing .stat-row {
  display: flex;
  gap: 1rem;
}

.bert-page-spear-phishing .mini-stat {
  flex: 1;
  background: rgba(255, 60, 60, 0.06);
  border: 1px solid rgba(255, 60, 60, 0.2);
  padding: 0.8rem;
  text-align: center;
}

.bert-page-spear-phishing .mini-stat-val {
  font-family: var(--head);
  font-size: 1.6rem;
  font-weight: 900;
  color: var(--red);
  line-height: 1;
}

.bert-page-spear-phishing .mini-stat-label {
  font-size: 0.65rem;
  color: var(--text-muted);
  margin-top: 0.2rem;
  line-height: 1.3;
}

/* ── DIAGRAM ── */
.bert-page-spear-phishing .diagram-section {
  margin-bottom: 2.5rem;
}

.bert-page-spear-phishing .diagram-wrapper {
  background: var(--surface);
  border: 1px solid var(--border);
  padding: 2rem;
  overflow-x: auto;
  width: 100%;
}

@media (max-width: 680px) {
  .bert-page-spear-phishing .diagram-wrapper {
    padding: 1.25rem 0.8rem;
  }
}

.bert-page-spear-phishing .flow-diagram {
  display: flex;
  align-items: center;
  gap: 0;
  min-width: 900px;
  position: relative;
}

.bert-page-spear-phishing .flow-node {
  flex: 1;
  position: relative;
  cursor: pointer;
}

.bert-page-spear-phishing .flow-box {
  background: var(--surface2);
  border: 1px solid var(--border);
  padding: 1.1rem 0.9rem;
  text-align: center;
  transition: all 0.25s;
  position: relative;
  margin: 0 2px;
}

.bert-page-spear-phishing .flow-box:hover,
.bert-page-spear-phishing .flow-box.highlighted {
  border-color: var(--red);
  background: rgba(255, 60, 60, 0.08);
  transform: translateY(-3px);
  box-shadow: 0 8px 24px rgba(255, 60, 60, 0.15);
}

.bert-page-spear-phishing .flow-icon {
  font-size: 1.5rem;
  margin-bottom: 0.4rem;
  display: block;
}

.bert-page-spear-phishing .flow-step-num {
  font-family: var(--mono);
  font-size: 0.58rem;
  color: var(--red);
  letter-spacing: 0.15em;
  margin-bottom: 0.2rem;
}

.bert-page-spear-phishing .flow-name {
  font-family: var(--head);
  font-size: 0.78rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--text);
  line-height: 1.2;
}

.bert-page-spear-phishing .flow-sub {
  font-size: 0.63rem;
  color: var(--text-muted);
  margin-top: 0.25rem;
  line-height: 1.3;
}

.bert-page-spear-phishing .flow-arrow {
  display: flex;
  align-items: center;
  padding: 0 0.1rem;
  flex-shrink: 0;
  width: 28px;
  justify-content: center;
}

.bert-page-spear-phishing .flow-arrow svg {
  width: 20px;
}

/* ── DEFENDER SECTION ── */
.bert-page-spear-phishing .defender-section {
  margin-bottom: 2rem;
}

.bert-page-spear-phishing .defender-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 1px;
  background: var(--border);
  border: 1px solid var(--border);
}

.bert-page-spear-phishing .defender-card {
  background: var(--surface);
  padding: 1.4rem 1.5rem;
  transition: background 0.2s;
}

.bert-page-spear-phishing .defender-card:hover {
  background: rgba(0, 230, 118, 0.05);
}

.bert-page-spear-phishing .dc-icon {
  font-size: 1.4rem;
  margin-bottom: 0.5rem;
  display: block;
}

.bert-page-spear-phishing .dc-title {
  font-family: var(--head);
  font-size: 0.85rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--green);
  margin-bottom: 0.4rem;
}

.bert-page-spear-phishing .dc-desc {
  font-size: 0.78rem;
  color: rgba(255, 255, 255, 0.7);
  line-height: 1.55;
}

/* ── STEP CONTROLS ── */
.bert-page-spear-phishing .step-controls {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-top: 1.5rem;
  padding-top: 1rem;
  border-top: 1px solid var(--border);
}

.bert-page-spear-phishing .ctrl-btn {
  background: transparent;
  border: 1px solid var(--border);
  color: var(--text);
  padding: 0.55rem 1.4rem;
  font-family: var(--mono);
  font-size: 0.7rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  cursor: pointer;
  transition: all 0.2s;
}

.bert-page-spear-phishing .ctrl-btn:hover:not(:disabled) {
  border-color: var(--red);
  color: var(--red);
  background: rgba(255, 60, 60, 0.06);
}

.bert-page-spear-phishing .ctrl-btn:disabled {
  opacity: 0.25;
  cursor: not-allowed;
}

.bert-page-spear-phishing .ctrl-btn.primary {
  background: var(--red);
  border-color: var(--red);
  color: white;
}

.bert-page-spear-phishing .ctrl-btn.primary:hover:not(:disabled) {
  background: #e02020;
}

.bert-page-spear-phishing .step-progress {
  font-family: var(--mono);
  font-size: 0.68rem;
  color: var(--text-muted);
}

.bert-page-spear-phishing .step-progress span {
  color: var(--text);
}

/* ── TOOLTIP OVERLAY ── */
.bert-page-spear-phishing .tooltip-overlay {
  display: none;
  position: fixed;
  inset: 0;
  z-index: 1000;
  background: rgba(0, 0, 0, 0.7);
  align-items: center;
  justify-content: center;
}

.bert-page-spear-phishing .tooltip-overlay.show {
  display: flex;
}

.bert-page-spear-phishing .tooltip-box {
  background: var(--surface2);
  border: 1px solid var(--red);
  max-width: 480px;
  width: 90%;
  padding: 2rem;
  position: relative;
  animation: sp-fadeIn 0.2s ease;
  box-shadow: 0 0 60px rgba(255, 60, 60, 0.2);
}

.bert-page-spear-phishing .tooltip-close {
  position: absolute;
  top: 1rem;
  right: 1rem;
  background: none;
  border: none;
  color: var(--text-muted);
  cursor: pointer;
  font-size: 1.2rem;
  line-height: 1;
}

.bert-page-spear-phishing .tooltip-close:hover {
  color: var(--text);
}

.bert-page-spear-phishing .tooltip-tag {
  font-family: var(--mono);
  font-size: 0.6rem;
  color: var(--red);
  letter-spacing: 0.2em;
  text-transform: uppercase;
  margin-bottom: 0.5rem;
}

.bert-page-spear-phishing .tooltip-title {
  font-family: var(--head);
  font-size: 1.5rem;
  font-weight: 900;
  text-transform: uppercase;
  margin-bottom: 0.75rem;
  color: var(--text);
}

.bert-page-spear-phishing .tooltip-body {
  font-size: 0.85rem;
  color: rgba(255, 255, 255, 0.75);
  line-height: 1.65;
  margin-bottom: 1rem;
}

.bert-page-spear-phishing .tooltip-detail {
  background: rgba(255, 60, 60, 0.07);
  border-left: 2px solid var(--red);
  padding: 0.75rem 1rem;
  font-size: 0.8rem;
  color: rgba(255, 255, 255, 0.8);
  line-height: 1.6;
}

/* ── RESPONSIVE ── */
@media (max-width: 1024px) {
  .bert-page-spear-phishing .overview-grid { grid-template-columns: repeat(2,1fr); }
  .bert-page-spear-phishing .defender-grid { grid-template-columns: repeat(2,1fr); }
  .bert-page-spear-phishing .sp-page-wrap { padding-bottom: 3rem; }
}

@media (max-width: 820px) {
  .bert-page-spear-phishing main { padding: 1.5rem 1rem 3rem; }
  .bert-page-spear-phishing header { padding: 1.5rem 1rem; }
  .bert-page-spear-phishing .threat-badge { display: none; }

  .bert-page-spear-phishing .overview-grid,
  .bert-page-spear-phishing .defender-grid { grid-template-columns: 1fr; }

  .bert-page-spear-phishing .step-panel.active { grid-template-columns: 1fr; }
  .bert-page-spear-phishing .flow-diagram { min-width: 700px; }
  
  .bert-page-spear-phishing h1 { font-size: 2.5rem; }
}

@media (max-width: 680px) {
  .bert-page-spear-phishing .step-nav { 
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
  .bert-page-spear-phishing .step-btn { 
    border-right: 1px solid var(--border);
    border-bottom: 1px solid var(--border);
    padding: 0.6rem 0.3rem;
  }
  .bert-page-spear-phishing .step-btn:nth-child(3n) { border-right: none; }
  .bert-page-spear-phishing .step-btn:nth-child(n+4) { border-bottom: none; }
  
  .bert-page-spear-phishing .section-title::after { display: none; }
  .bert-page-spear-phishing .flow-diagram { min-width: 600px; }
  
  .bert-page-spear-phishing .overview-card { padding: 1.2rem; }
}

@media (max-width: 480px) {
  .bert-page-spear-phishing h1 { font-size: 1.8rem; }
  .bert-page-spear-phishing .header-sub { font-size: 0.82rem; }
  
  .bert-page-spear-phishing .step-nav { 
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
  .bert-page-spear-phishing .step-btn:nth-child(3n) { border-right: 1px solid var(--border); }
  .bert-page-spear-phishing .step-btn:nth-child(2n) { border-right: none; }
  .bert-page-spear-phishing .step-btn:nth-child(n+3) { border-bottom: 1px solid var(--border); }
  .bert-page-spear-phishing .step-btn:nth-child(n+5) { border-bottom: none; }
  
  .bert-page-spear-phishing .step-label { font-size: 0.55rem; }
  .bert-page-spear-phishing .step-num { width: 22px; height: 22px; font-size: 0.6rem; }

  .bert-page-spear-phishing .stat-row { flex-direction: column; }
  .bert-page-spear-phishing .flow-diagram { min-width: 450px; }
  .bert-page-spear-phishing .flow-sub { display: none; }
  .bert-page-spear-phishing .flow-box { padding: 0.8rem 0.4rem; }
  .bert-page-spear-phishing .flow-name { font-size: 0.65rem; }
  
  .bert-page-spear-phishing .step-main-card,
  .bert-page-spear-phishing .step-side-card { padding: 1.1rem; }
  .bert-page-spear-phishing .step-title { font-size: 1.35rem; }
  .bert-page-spear-phishing .step-phase { font-size: 0.55rem; }
}