:root {
  --bg: #070a12;
  --bg-soft: #0a0f1c;
  --surface: #101827;
  --surface-2: #172033;
  --text: #f4f7fb;
  --text-muted: #9aa6b8;
  --text-soft: #6f7b8f;
  --primary: #2f80ff;
  --primary-hover: #1f6fe5;
  --primary-soft: rgba(47, 128, 255, 0.16);
  --agent-blue: #38bdf8;
  --agent-purple: #8b5cf6;
  --agent-pink: #c084fc;
  --success: #22c55e;
  --warning: #f59e0b;
  --danger: #ef4444;
  --border: rgba(255, 255, 255, 0.08);
  --border-strong: rgba(255, 255, 255, 0.14);
  --shadow-soft: 0 20px 70px rgba(0, 0, 0, 0.34);
  --radius-sm: 12px;
  --radius: 18px;
  --radius-lg: 20px;
  --space-1: 4px;
  --space-2: 8px;
  --space-3: 12px;
  --space-4: 16px;
  --space-5: 20px;
  --space-6: 24px;
  --space-8: 32px;
  --space-10: 40px;
  --space-12: 48px;
  --container: 1120px;
}

* {
  box-sizing: border-box;
}

html {
  background: var(--bg);
  color: var(--text);
  font-family:
    Aptos, Inter, Manrope, Sora, "Segoe UI", Arial, sans-serif;
  font-optical-sizing: auto;
  -webkit-font-smoothing: antialiased;
  scroll-behavior: smooth;
  scroll-padding-top: clamp(72px, 10vw, 112px);
  text-rendering: optimizeLegibility;
  line-height: 1.5;
}

body {
  margin: 0;
  min-width: 320px;
  background:
    radial-gradient(circle at 82% 8%, rgba(47, 128, 255, 0.13), transparent 30rem),
    radial-gradient(circle at 16% 26%, rgba(139, 92, 246, 0.08), transparent 28rem),
    var(--bg);
}

body,
button {
  font: inherit;
}

a {
  color: inherit;
  text-decoration: none;
}

.site-shell {
  min-height: 100vh;
}

.site-header {
  border-bottom: 1px solid var(--border);
  background: rgba(7, 10, 18, 0.82);
}

.nav {
  align-items: center;
  display: flex;
  gap: var(--space-4);
  justify-content: space-between;
  margin: 0 auto;
  max-width: var(--container);
  padding: var(--space-4) var(--space-5);
}

.brand {
  align-items: center;
  display: inline-flex;
  gap: var(--space-3);
  font-size: 18px;
  font-weight: 700;
}

.brand-mark,
.ironcore-avatar {
  background: radial-gradient(
    circle at 30% 25%,
    var(--agent-blue),
    var(--primary) 35%,
    var(--agent-purple) 75%,
    var(--agent-pink)
  );
  border-radius: 999px;
  box-shadow:
    0 0 18px rgba(47, 128, 255, 0.35),
    0 0 28px rgba(139, 92, 246, 0.22);
  flex: 0 0 auto;
  position: relative;
}

.brand-mark {
  height: 34px;
  width: 34px;
}

.ironcore-avatar {
  height: 56px;
  width: 56px;
}

.brand-mark::after,
.ironcore-avatar::after {
  background: rgba(255, 255, 255, 0.72);
  border-radius: 999px;
  box-shadow: 0 0 10px rgba(255, 255, 255, 0.25);
  content: "";
  height: 7px;
  left: 50%;
  position: absolute;
  top: 50%;
  transform: translate(-50%, -50%);
  width: 16px;
}

.ironcore-avatar::after {
  height: 8px;
  width: 22px;
}

.nav-links {
  align-items: center;
  display: flex;
  gap: var(--space-5);
  font-size: 14px;
  font-weight: 700;
}

.nav-links a {
  color: var(--text-muted);
}

.nav-links a:hover {
  color: var(--text);
}

.page-section,
.hero {
  margin: 0 auto;
  max-width: var(--container);
  padding: var(--space-12) var(--space-5);
}

.hero {
  align-items: center;
  display: grid;
  gap: var(--space-8);
  grid-template-columns: minmax(0, 1.05fr) minmax(280px, 0.95fr);
  min-height: calc(100vh - 68px);
}

.hero-copy {
  max-width: 690px;
}

h1,
h2,
h3,
p {
  margin: 0;
}

h1 {
  font-family:
    "Aptos Display", Aptos, Inter, Manrope, Sora, "Segoe UI", Arial, sans-serif;
  font-size: clamp(38px, 6.5vw, 64px);
  font-weight: 700;
  letter-spacing: 0;
  line-height: 1.02;
  overflow-wrap: anywhere;
}

h2 {
  font-family:
    "Aptos Display", Aptos, Inter, Manrope, Sora, "Segoe UI", Arial, sans-serif;
  font-size: clamp(28px, 4vw, 44px);
  font-weight: 700;
  letter-spacing: 0;
  line-height: 1.08;
}

h3 {
  font-size: 18px;
  font-weight: 700;
  line-height: 1.3;
  overflow-wrap: anywhere;
}

.lead {
  color: var(--text-muted);
  font-size: clamp(17px, 2vw, 20px);
  line-height: 1.65;
  margin-top: var(--space-6);
  max-width: 720px;
}

.button-primary {
  align-items: center;
  background: var(--primary);
  border: 0;
  border-radius: 14px;
  color: white;
  display: inline-flex;
  font-size: 15px;
  font-weight: 760;
  justify-content: center;
  margin-top: var(--space-8);
  min-height: 48px;
  padding: 14px 18px;
}

.button-primary:hover {
  background: var(--primary-hover);
}

.hero-panel,
.card,
.article-card,
.cta-box {
  background: linear-gradient(180deg, rgba(23, 32, 51, 0.96), rgba(16, 24, 39, 0.96));
  border: 1px solid var(--border);
  border-radius: var(--radius);
  box-shadow: var(--shadow-soft);
}

.hero-panel {
  padding: var(--space-5);
}

.preview-top {
  align-items: center;
  display: flex;
  gap: var(--space-4);
  margin-bottom: var(--space-6);
}

.preview-label {
  color: var(--text-muted);
  font-size: 13px;
  font-weight: 680;
}

.preview-title {
  color: var(--text);
  font-size: 17px;
  font-weight: 700;
}

.training-lines {
  display: grid;
  gap: var(--space-3);
}

.training-line {
  align-items: center;
  background: rgba(255, 255, 255, 0.035);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  display: grid;
  gap: var(--space-3);
  grid-template-columns: 1fr auto;
  min-height: 56px;
  padding: var(--space-3) var(--space-4);
}

.training-line span {
  color: var(--text-muted);
  font-size: 13px;
}

.training-line strong {
  color: var(--text);
  font-size: 14px;
  font-weight: 700;
}

.status-dot {
  background: var(--primary-soft);
  border: 1px solid rgba(47, 128, 255, 0.42);
  border-radius: 999px;
  color: #b9d4ff;
  font-size: 12px;
  font-weight: 760;
  padding: 6px 10px;
}

.agent-note {
  background: linear-gradient(
    135deg,
    rgba(47, 128, 255, 0.18),
    rgba(139, 92, 246, 0.2)
  );
  border: 1px solid rgba(139, 92, 246, 0.32);
  border-radius: var(--radius);
  color: var(--text);
  margin-top: var(--space-4);
  padding: var(--space-4);
}

.agent-note p {
  color: var(--text-muted);
  margin-top: var(--space-2);
}

.section-header {
  margin-bottom: var(--space-8);
  max-width: 700px;
}

.grid,
.blog-grid,
.related-grid {
  display: grid;
  gap: var(--space-5);
}

.grid {
  grid-template-columns: repeat(5, minmax(0, 1fr));
}

.blog-grid {
  grid-template-columns: repeat(3, minmax(0, 1fr));
}

.related-grid {
  grid-template-columns: repeat(3, minmax(0, 1fr));
}

.card,
.article-card,
.cta-box {
  padding: var(--space-5);
}

.card p,
.article-card p,
.cta-box p,
.article-body p {
  color: var(--text-muted);
  margin-top: var(--space-3);
}

.card.ai-card {
  border-color: rgba(139, 92, 246, 0.32);
}

.category {
  align-items: center;
  background: rgba(47, 128, 255, 0.12);
  border: 1px solid rgba(110, 168, 255, 0.24);
  border-radius: 999px;
  color: #cfe1ff;
  display: inline-flex;
  font-size: 12px;
  font-weight: 760;
  line-height: 1;
  padding: 7px 10px;
  text-transform: uppercase;
}

.article-card {
  display: flex;
  flex-direction: column;
  min-height: 100%;
  overflow: hidden;
  position: relative;
  transition:
    border-color 180ms ease,
    transform 180ms ease,
    background 180ms ease;
}

.article-card::before {
  background: linear-gradient(90deg, rgba(47, 128, 255, 0.8), rgba(139, 92, 246, 0.46));
  content: "";
  height: 2px;
  left: var(--space-5);
  position: absolute;
  right: var(--space-5);
  top: 0;
  opacity: 0.68;
}

.article-card-meta {
  align-items: center;
  display: flex;
  gap: var(--space-3);
  margin-bottom: var(--space-4);
}

.article-card h3 {
  font-size: 21px;
  line-height: 1.18;
}

.article-card a {
  color: var(--text);
  display: inline-block;
  margin-top: auto;
  padding-top: var(--space-5);
  font-size: 14px;
  font-weight: 760;
}

.article-card:hover {
  border-color: var(--border-strong);
  background: linear-gradient(180deg, rgba(25, 37, 60, 0.98), rgba(14, 22, 37, 0.98));
  transform: translateY(-2px);
}

.article-shell {
  margin: clamp(56px, 8vw, 96px) auto;
  max-width: 860px;
  padding: 0 var(--space-5) 104px;
}

.article-header {
  border-bottom: 1px solid var(--border);
  padding-bottom: clamp(32px, 5vw, 56px);
}

.article-meta {
  align-items: center;
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-3);
  margin-bottom: var(--space-5);
}

.reading-time {
  color: var(--text-soft);
  font-size: 13px;
  font-weight: 680;
}

.article-shell h1 {
  font-size: clamp(34px, 5vw, 56px);
  line-height: 1.07;
  max-width: 760px;
}

.article-deck {
  color: rgba(244, 247, 251, 0.76);
  font-size: clamp(17px, 2vw, 20px);
  line-height: 1.65;
  margin-top: var(--space-5);
  max-width: 68ch;
}

.article-toc {
  background:
    linear-gradient(180deg, rgba(23, 32, 51, 0.8), rgba(12, 18, 31, 0.84));
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  margin-top: var(--space-8);
  /* Article box spacing polish */
  padding: 28px 24px 28px;
}

.article-toc p {
  color: #cfe1ff;
  font-size: 16px;
  font-weight: 760;
  line-height: 1.25;
  margin: 0 0 16px;
}

.article-toc ol {
  columns: 2;
  column-gap: var(--space-8);
  list-style: none;
  margin: 0;
  padding: 0;
}

.article-toc li {
  break-inside: avoid;
  margin-top: 14px;
}

.article-toc li:first-child {
  margin-top: 0;
}

.article-toc a {
  color: rgba(244, 247, 251, 0.78);
  display: block;
  font-size: 15px;
  line-height: 1.5;
  padding: 2px 0;
}

.article-toc a:hover {
  color: var(--text);
}

.article-body {
  margin-top: var(--space-10);
}

.article-body .article-section + .article-section {
  margin-top: clamp(64px, 8vw, 88px);
  /*padding-top: 50px;*/
}

.article-body h2 {
  font-size: clamp(26px, 3vw, 34px);
  line-height: 1.12;
  margin-bottom: var(--space-6);
  scroll-margin-top: clamp(78px, 10vw, 118px);
}

.article-body h3 {
  font-size: 21px;
  line-height: 1.24;
  margin-top: var(--space-12);
  margin-bottom: var(--space-5);
}

.article-body p {
  color: rgba(244, 247, 251, 0.84);
  font-size: 17px;
  line-height: 1.75;
  margin-top: var(--space-6);
  max-width: 72ch;
}

.article-body h2 + p,
.article-body h3 + p {
  margin-top: 0;
}

.article-body p:has(br) {
  background: rgba(23, 32, 51, 0.48);
  border: 1px solid rgba(255, 255, 255, 0.09);
  border-radius: var(--radius-sm);
  color: rgba(244, 247, 251, 0.9);
  line-height: 1.78;
  margin-top: var(--space-6);
  padding: var(--space-5) var(--space-5) var(--space-4);
}

.article-body ul,
.article-body ol {
  color: rgba(244, 247, 251, 0.84);
  font-size: 17px;
  line-height: 1.75;
  margin: var(--space-6) 0 0;
  padding-left: 1.35rem;
}

.article-body li {
  padding-left: var(--space-2);
}

.article-body li::marker {
  color: #9fc5ff;
}

.article-body li + li {
  margin-top: var(--space-4);
}

/* Article box spacing polish */
.cta-box {
  background:
    radial-gradient(circle at 88% 16%, rgba(47, 128, 255, 0.2), transparent 18rem),
    linear-gradient(180deg, rgba(23, 32, 51, 0.98), rgba(12, 18, 31, 0.98));
  border-color: rgba(47, 128, 255, 0.36);
  margin-top: clamp(56px, 8vw, 84px);
  padding: 36px 30px 32px;
}

.quick-answer-section,
.ironyou-section,
.faq-section {
  border-radius: var(--radius);
  padding: 34px 28px 30px;
}

.quick-answer-section {
  background:
    linear-gradient(180deg, rgba(47, 128, 255, 0.14), rgba(23, 32, 51, 0.56));
  border: 1px solid rgba(87, 154, 255, 0.34);
}

.quick-answer-section h2,
.ironyou-section h2,
.faq-section h2 {
  margin-bottom: var(--space-8);
}

.quick-answer-section h2::before {
  background: var(--primary);
  border-radius: 999px;
  content: "";
  display: inline-block;
  height: 10px;
  margin-right: var(--space-3);
  width: 10px;
}

.ironyou-section {
  background:
    radial-gradient(circle at 92% 8%, rgba(139, 92, 246, 0.16), transparent 18rem),
    linear-gradient(180deg, rgba(24, 33, 54, 0.74), rgba(14, 21, 36, 0.78));
  border: 1px solid rgba(122, 156, 255, 0.2);
}

.faq-section {
  background: rgba(23, 32, 51, 0.42);
  border: 1px solid var(--border);
}

.faq-section h3 {
  border-top: 1px solid var(--border);
  margin-top: var(--space-6);
  padding-top: var(--space-6);
}

.faq-section h3:first-of-type {
  border-top: 0;
  margin-top: 0;
  padding-top: 0;
}

.related-section {
  border-top: 1px solid var(--border);
  padding-top: var(--space-8);
}

.site-footer {
  border-top: 1px solid var(--border);
  color: var(--text-soft);
  font-size: 14px;
  margin-top: var(--space-10);
  padding: var(--space-8) var(--space-5);
  text-align: center;
}

.reader-dock {
  bottom: 18px;
  left: 50%;
  pointer-events: none;
  position: fixed;
  transform: translateX(-50%);
  width: min(600px, calc(100% - 40px));
  z-index: 50;
}

.reader-dock-panel,
.reader-dock-control {
  background:
    radial-gradient(circle at 92% 8%, rgba(139, 92, 246, 0.12), transparent 14rem),
    linear-gradient(180deg, rgba(23, 32, 51, 0.98), rgba(8, 13, 24, 0.98));
  border: 1px solid rgba(87, 154, 255, 0.24);
  color: var(--text);
  pointer-events: auto;
}

.reader-dock-panel {
  border-bottom: 0;
  border-radius: 18px 18px 0 0;
  box-shadow: 0 22px 64px rgba(0, 0, 0, 0.38);
  max-height: min(56vh, 430px);
  overflow: auto;
  padding: 24px 24px 20px;
}

.reader-dock-panel[hidden] {
  display: none;
}

.reader-dock-control {
  border-radius: 18px;
  box-shadow: 0 18px 54px rgba(0, 0, 0, 0.34);
  cursor: pointer;
  display: grid;
  gap: 10px 14px;
  grid-template-columns: auto minmax(0, 1fr) auto;
  padding: 13px 15px 12px;
  text-align: left;
  width: 100%;
}

.reader-dock.is-open .reader-dock-control {
  border-radius: 0 0 18px 18px;
  border-top-color: rgba(87, 154, 255, 0.1);
  box-shadow: 0 18px 54px rgba(0, 0, 0, 0.34);
}

.reader-dock-control:focus-visible,
.section-menu-close:focus-visible,
.reader-dock-panel a:focus-visible {
  outline: 2px solid rgba(56, 189, 248, 0.9);
  outline-offset: 3px;
}

.reader-dock-orb {
  align-self: center;
  background: radial-gradient(circle at 30% 25%, var(--agent-blue), var(--primary) 42%, var(--agent-purple) 78%);
  border-radius: 999px;
  box-shadow:
    0 0 14px rgba(47, 128, 255, 0.34),
    0 0 22px rgba(139, 92, 246, 0.18);
  height: 24px;
  width: 24px;
}

.reader-dock-copy {
  align-self: center;
  display: grid;
  gap: 1px;
  min-width: 0;
}

.reader-dock-label,
.reader-dock-kicker {
  color: var(--text-soft);
  font-size: 11px;
  font-weight: 800;
  letter-spacing: 0.04em;
  text-transform: uppercase;
}

.reader-dock-status {
  color: #d9e8ff;
  font-size: 14px;
  font-weight: 760;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.reader-dock-action {
  align-self: center;
  background: rgba(47, 128, 255, 0.12);
  border: 1px solid rgba(87, 154, 255, 0.22);
  border-radius: 999px;
  color: #d9e8ff;
  font-size: 13px;
  font-weight: 760;
  padding: 7px 10px;
}

.reader-dock-track {
  background: rgba(244, 247, 251, 0.1);
  border-radius: 999px;
  grid-column: 1 / -1;
  height: 4px;
  overflow: hidden;
}

.reader-dock-fill {
  background: linear-gradient(90deg, var(--primary), var(--agent-blue));
  border-radius: inherit;
  display: block;
  height: 100%;
  width: 0;
}

.section-menu-header {
  align-items: center;
  display: flex;
  gap: var(--space-4);
  justify-content: space-between;
  margin-bottom: var(--space-5);
}

.section-menu-header p {
  color: #d9e8ff;
  font-size: 18px;
  font-weight: 820;
  line-height: 1.2;
  margin: 2px 0 0;
}

.section-menu-close {
  background: rgba(244, 247, 251, 0.06);
  border: 1px solid var(--border);
  border-radius: 999px;
  color: var(--text-muted);
  cursor: pointer;
  font-size: 13px;
  font-weight: 720;
  padding: 7px 11px;
}

.reader-dock-panel ol {
  list-style: none;
  margin: 0;
  padding: 0;
}

.reader-dock-panel li + li {
  margin-top: var(--space-3);
}

.reader-dock-panel a {
  color: rgba(244, 247, 251, 0.78);
  display: block;
  font-size: 15px;
  line-height: 1.45;
  padding: 2px 0;
}

.reader-dock-panel a:hover {
  color: var(--text);
}

@media (max-width: 920px) {
  .hero {
    grid-template-columns: 1fr;
    min-height: auto;
  }

  .grid,
  .blog-grid,
  .related-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (max-width: 620px) {
  .nav {
    align-items: flex-start;
    flex-direction: column;
  }

  .nav-links {
    width: 100%;
  }

  .page-section,
  .hero {
    padding-left: var(--space-4);
    padding-right: var(--space-4);
  }

  .hero {
    padding-top: var(--space-10);
  }

  h1 {
    font-size: 34px;
    line-height: 1.08;
  }

  .hero h1 {
    font-size: 36px;
  }

  .article-shell h1 {
    font-size: 32px;
    line-height: 1.16;
  }

  .article-header {
    padding-bottom: var(--space-8);
  }

  .article-deck {
    font-size: 16px;
    line-height: 1.65;
  }

  .article-toc {
    margin-top: var(--space-6);
    padding: 22px 20px 22px;
  }

  .article-toc p {
    font-size: 15px;
    margin-bottom: 16px;
  }

  .article-toc ol {
    columns: 1;
  }

  .article-toc li {
    margin-top: 12px;
  }

  .article-toc a {
    font-size: 15px;
    line-height: 1.48;
  }

  .grid,
  .blog-grid,
  .related-grid {
    grid-template-columns: 1fr;
  }

  .article-shell {
    margin-top: var(--space-8);
    padding: 0 var(--space-5) 120px;
  }

  .article-body {
    margin-top: var(--space-8);
  }

  .article-body section + section {
    margin-top: 56px;
  }

  .article-body h2 {
    font-size: 25px;
    line-height: 1.16;
    margin-bottom: var(--space-5);
    scroll-margin-top: 84px;
  }

  .article-body h3 {
    font-size: 19px;
    line-height: 1.28;
    margin-top: var(--space-10);
    margin-bottom: var(--space-4);
  }

  .article-body p,
  .article-body ul,
  .article-body ol {
    font-size: 16px;
    line-height: 1.75;
  }

  .article-body p {
    margin-top: var(--space-5);
  }

  .article-body ul,
  .article-body ol {
    margin-top: var(--space-5);
    padding-left: 1.25rem;
  }

  .article-body li + li {
    margin-top: var(--space-3);
  }

  .quick-answer-section,
  .ironyou-section,
  .faq-section {
    padding: 26px 20px 24px;
  }

  .cta-box {
    padding: 26px 20px 24px;
  }

  .reader-dock {
    bottom: 12px;
    width: calc(100% - 24px);
  }

  .reader-dock-control {
    border-radius: 14px;
    gap: 8px 12px;
    padding: 11px 12px 10px;
  }

  .reader-dock.is-open .reader-dock-control {
    border-radius: 0 0 14px 14px;
  }

  .reader-dock-label,
  .reader-dock-kicker,
  .reader-dock-status,
  .reader-dock-action {
    font-size: 13px;
  }

  .reader-dock-label,
  .reader-dock-kicker {
    font-size: 10px;
  }

  .reader-dock-orb {
    height: 22px;
    width: 22px;
  }

  .reader-dock-action {
    padding: 6px 9px;
  }

  .reader-dock-panel {
    border-radius: 16px 16px 0 0;
    max-height: 66vh;
    padding: 22px 20px;
  }

  .section-menu-header p {
    font-size: 16px;
  }

  .reader-dock-panel a {
    font-size: 15px;
  }
}

@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }
}