/* ===================================================
   SuperComputing.dk — Modern Homepage Stylesheet
   =================================================== */

/* ---- Reset & Base ---- */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

:root {
  --bg:        #0a0e1a;
  --bg2:       #0f1525;
  --bg3:       #141b30;
  --surface:   #1a2240;
  --border:    #243060;
  --accent:    #00c8ff;
  --accent2:   #7c5cfc;
  --accent3:   #00ffb0;
  --text:      #e4eaf8;
  --text-muted:#8a9bc4;
  --danger:    #ff6b6b;
  --warning:   #ffd166;
  --radius:    12px;
  --radius-sm: 8px;
  --shadow:    0 4px 32px rgba(0,0,0,0.45);
  --font:      'Inter', system-ui, sans-serif;
  --mono:      'JetBrains Mono', 'Fira Code', monospace;
}

html { scroll-behavior: smooth; }

body {
  background: var(--bg);
  color: var(--text);
  font-family: var(--font);
  font-size: 16px;
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
}

a { color: var(--accent); text-decoration: none; }
a:hover { text-decoration: underline; }

code {
  font-family: var(--mono);
  background: var(--surface);
  color: var(--accent3);
  padding: 2px 6px;
  border-radius: 4px;
  font-size: 0.875em;
}

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

.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 1.5rem;
}

.section {
  padding: 5rem 0;
}

/* ---- Buttons ---- */
.btn {
  display: inline-flex;
  align-items: center;
  gap: .4rem;
  padding: .75rem 1.75rem;
  border-radius: var(--radius);
  font-weight: 600;
  font-size: .95rem;
  cursor: pointer;
  transition: all .2s;
  border: 2px solid transparent;
  white-space: nowrap;
}
.btn-primary {
  background: linear-gradient(135deg, var(--accent), var(--accent2));
  color: #fff;
}
.btn-primary:hover {
  filter: brightness(1.1);
  transform: translateY(-2px);
  box-shadow: 0 8px 24px rgba(0,200,255,.3);
  text-decoration: none;
}
.btn-outline {
  border-color: var(--border);
  color: var(--text);
  background: transparent;
}
.btn-outline:hover {
  border-color: var(--accent);
  color: var(--accent);
  text-decoration: none;
  background: rgba(0,200,255,.06);
}
.btn-nav {
  padding: .45rem 1.1rem;
  border-radius: var(--radius-sm);
  background: linear-gradient(135deg, var(--accent), var(--accent2));
  color: #fff;
  font-weight: 600;
  font-size: .875rem;
  transition: all .2s;
}
.btn-nav:hover { filter: brightness(1.1); text-decoration: none; }

/* ---- Header ---- */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(10,14,26,.88);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-bottom: 1px solid var(--border);
}
.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 64px;
}
.logo {
  display: flex;
  align-items: center;
  gap: .5rem;
  color: var(--text);
  font-size: 1.1rem;
  font-weight: 600;
  text-decoration: none;
}
.logo:hover { text-decoration: none; }
.logo-icon {
  font-size: 1.6rem;
  background: linear-gradient(135deg, var(--accent), var(--accent2));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}
.logo-text strong { color: var(--accent); }
.main-nav {
  display: flex;
  align-items: center;
  gap: 1.75rem;
}
.main-nav a {
  color: var(--text-muted);
  font-weight: 500;
  font-size: .9rem;
  transition: color .2s;
  text-decoration: none;
}
.main-nav a:hover { color: var(--text); }
.nav-toggle {
  display: none;
  background: none;
  border: none;
  color: var(--text);
  font-size: 1.5rem;
  cursor: pointer;
  padding: 0.5rem;
  min-width: 44px;
  min-height: 44px;
  touch-action: manipulation;
  -webkit-tap-highlight-color: transparent;
}

/* ---- Hero ---- */
.hero {
  position: relative;
  overflow: hidden;
  padding: 5rem 0 4rem;
  background: radial-gradient(ellipse 80% 50% at 50% 0%, rgba(0,200,255,.08) 0%, transparent 70%),
              var(--bg);
}
.hero-bg-grid {
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(var(--border) 1px, transparent 1px),
    linear-gradient(90deg, var(--border) 1px, transparent 1px);
  background-size: 40px 40px;
  opacity: .25;
  mask-image: radial-gradient(ellipse 90% 60% at 50% 0%, black 0%, transparent 80%);
  pointer-events: none;
}
.hero-content {
  position: relative;
  text-align: center;
}
.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: .4rem;
  background: rgba(0,200,255,.1);
  border: 1px solid rgba(0,200,255,.25);
  color: var(--accent);
  padding: .35rem .9rem;
  border-radius: 100px;
  font-size: .82rem;
  font-weight: 600;
  letter-spacing: .04em;
  text-transform: uppercase;
  margin-bottom: 1.5rem;
}
.hero-title {
  font-size: clamp(2.4rem, 6vw, 4.5rem);
  font-weight: 800;
  line-height: 1.1;
  letter-spacing: -.03em;
  margin-bottom: 1.5rem;
}
.gradient-text {
  background: linear-gradient(135deg, var(--accent) 0%, var(--accent2) 50%, var(--accent3) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}
.hero-sub {
  max-width: 640px;
  margin: 0 auto 2rem;
  color: var(--text-muted);
  font-size: 1.05rem;
}
.hero-cta {
  display: flex;
  gap: 1rem;
  justify-content: center;
  flex-wrap: wrap;
  margin-bottom: 3rem;
}
.hero-stats {
  display: inline-flex;
  align-items: center;
  gap: 0;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1.2rem 2rem;
  flex-wrap: wrap;
  justify-content: center;
}
.stat {
  display: flex;
  flex-direction: column;
  align-items: center;
  padding: 0 1.5rem;
}
.stat-num {
  font-size: 1.9rem;
  font-weight: 800;
  background: linear-gradient(135deg, var(--accent), var(--accent3));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  line-height: 1.1;
}
.stat-label {
  font-size: .78rem;
  text-transform: uppercase;
  letter-spacing: .06em;
  color: var(--text-muted);
}
.stat-divider {
  width: 1px;
  height: 48px;
  background: var(--border);
}

/* Terminal */
.hero-terminal-wrap {
  margin-top: 3.5rem;
}
.terminal-window {
  max-width: 680px;
  margin: 0 auto;
  background: #0d1117;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  box-shadow: var(--shadow), 0 0 80px rgba(0,200,255,.06);
  overflow: hidden;
}
.terminal-bar {
  display: flex;
  align-items: center;
  gap: .5rem;
  padding: .7rem 1rem;
  background: var(--bg3);
  border-bottom: 1px solid var(--border);
}
.t-dot {
  width: 12px; height: 12px;
  border-radius: 50%;
}
.t-dot.red    { background: #ff5f57; }
.t-dot.yellow { background: #febc2e; }
.t-dot.green  { background: #28c840; }
.t-title {
  margin-left: .5rem;
  font-family: var(--mono);
  font-size: .8rem;
  color: var(--text-muted);
}
.terminal-body {
  padding: 1.25rem 1.5rem;
  font-family: var(--mono);
  font-size: .85rem;
  line-height: 1.9;
}
.t-line { display: block; }
.t-prompt {
  color: var(--accent3);
  font-weight: 600;
  margin-right: .5rem;
}
.t-output { color: var(--text-muted); padding-left: 1rem; }
.t-hl     { color: var(--accent3); }
.t-cursor {
  animation: blink 1s step-end infinite;
  color: var(--accent);
}
@keyframes blink { 50% { opacity: 0; } }

/* ---- Ads ---- */
.ad-strip {
  background: var(--bg2);
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
  padding: 1rem 0;
  text-align: center;
}
.ad-leaderboard { }
.ad-inline {
  margin: 1.5rem 0;
  padding: .75rem;
  background: var(--bg2);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
}
.sidebar-ad-label {
  font-size: .7rem;
  text-transform: uppercase;
  letter-spacing: .08em;
  color: var(--text-muted);
  text-align: center;
  margin-bottom: .5rem;
}

/* ---- Section Header ---- */
.section-header {
  text-align: center;
  max-width: 700px;
  margin: 0 auto 3.5rem;
}
.section-header.light h2,
.section-header.light p { color: #fff; }
.section-header.light p { color: rgba(255,255,255,.7); }
.section-tag {
  display: inline-block;
  background: rgba(0,200,255,.1);
  border: 1px solid rgba(0,200,255,.2);
  color: var(--accent);
  padding: .25rem .75rem;
  border-radius: 100px;
  font-size: .75rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: .07em;
  margin-bottom: .75rem;
}
.section-header h2 {
  font-size: clamp(1.8rem, 4vw, 2.8rem);
  font-weight: 800;
  letter-spacing: -.025em;
  margin-bottom: .75rem;
}
.section-header p {
  color: var(--text-muted);
  font-size: 1.05rem;
}

/* ---- What-You-Build Cards ---- */
.what-section {
  background: var(--bg2);
}
.cards-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
  gap: 1.5rem;
}
.card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1.75rem;
  transition: transform .2s, box-shadow .2s, border-color .2s;
}
.card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow);
  border-color: var(--accent);
}
.card-accent {
  border-top: 3px solid var(--accent);
}
.card-icon {
  font-size: 2.2rem;
  margin-bottom: .75rem;
}
.card h3 {
  font-size: 1.1rem;
  font-weight: 700;
  margin-bottom: .5rem;
}
.card p {
  color: var(--text-muted);
  font-size: .92rem;
  margin-bottom: 1rem;
}
.card-link {
  font-weight: 600;
  font-size: .88rem;
  color: var(--accent);
}
.card-link:hover { color: var(--accent3); }

/* ---- Steps ---- */
.steps-section {
  background: var(--bg);
}
.steps-layout {
  display: grid;
  grid-template-columns: 1fr 300px;
  gap: 2.5rem;
  align-items: start;
}
.steps-list { display: flex; flex-direction: column; gap: 1rem; }
.step-group { display: flex; flex-direction: column; gap: .5rem; }
.step-group-label {
  font-size: .75rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: .1em;
  color: var(--accent);
  padding: .5rem 0 .25rem;
  border-bottom: 1px solid var(--border);
  margin-bottom: .25rem;
}
.step-item {
  display: flex;
  align-items: center;
  gap: 1rem;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  padding: .9rem 1.1rem;
  transition: all .18s;
  color: var(--text);
  text-decoration: none;
}
.step-item:hover {
  border-color: var(--accent);
  background: rgba(0,200,255,.05);
  transform: translateX(4px);
  text-decoration: none;
  color: var(--text);
}
.step-num {
  min-width: 32px;
  height: 32px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: linear-gradient(135deg, var(--accent), var(--accent2));
  color: #fff;
  font-weight: 700;
  font-size: .8rem;
  border-radius: 50%;
  flex-shrink: 0;
}
.step-body {
  flex: 1;
  display: flex;
  flex-direction: column;
  gap: .1rem;
}
.step-body strong { font-size: .92rem; font-weight: 600; }
.step-body span   { font-size: .8rem; color: var(--text-muted); }
.step-arrow { color: var(--text-muted); font-size: 1rem; flex-shrink: 0; }
.step-item:hover .step-arrow { color: var(--accent); }

/* Sidebar */
.steps-sidebar {
  position: sticky;
  top: 80px;
  display: flex;
  flex-direction: column;
  gap: .75rem;
}
.sidebar-box {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1.25rem;
}
.sidebar-box h4 {
  font-size: .85rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: .06em;
  color: var(--text-muted);
  margin-bottom: .75rem;
}
.sidebar-box ul { list-style: none; display: flex; flex-direction: column; gap: .4rem; }
.sidebar-box ul li a {
  font-size: .88rem;
  color: var(--text-muted);
  display: block;
  padding: .3rem .5rem;
  border-radius: 6px;
  transition: all .15s;
}
.sidebar-box ul li a:hover {
  background: rgba(0,200,255,.08);
  color: var(--accent);
  text-decoration: none;
}

/* ---- Docker Section ---- */
.docker-section {
  background: linear-gradient(180deg, var(--bg2) 0%, var(--bg3) 100%);
}
.tech-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 1.5rem;
  margin-bottom: 3rem;
}
.tech-card {
  background: rgba(255,255,255,.03);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1.5rem;
  transition: border-color .2s, background .2s;
}
.tech-card:hover {
  border-color: var(--accent2);
  background: rgba(124,92,252,.05);
}
.tech-icon {
  font-size: 2rem;
  margin-bottom: .75rem;
}
.tech-card h3 {
  font-size: 1rem;
  font-weight: 700;
  margin-bottom: .5rem;
}
.tech-card p {
  color: var(--text-muted);
  font-size: .88rem;
}

/* Code Blocks */
.code-showcase {
  background: #0d1117;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
  margin-bottom: 2rem;
}
.code-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: .65rem 1.25rem;
  background: var(--bg3);
  border-bottom: 1px solid var(--border);
  font-family: var(--mono);
  font-size: .8rem;
  color: var(--text-muted);
}
.copy-btn {
  background: var(--surface);
  border: 1px solid var(--border);
  color: var(--text-muted);
  padding: .25rem .75rem;
  border-radius: 6px;
  font-size: .75rem;
  cursor: pointer;
  font-family: var(--font);
  transition: all .15s;
}
.copy-btn:hover { border-color: var(--accent); color: var(--accent); }
.copy-btn.copied { color: var(--accent3); border-color: var(--accent3); }
.code-block {
  padding: 1.5rem;
  overflow-x: auto;
  font-family: var(--mono);
  font-size: .82rem;
  line-height: 1.8;
  color: #c9d1d9;
  margin: 0;
}
.code-block code {
  background: none;
  color: inherit;
  padding: 0;
  font-size: inherit;
}

/* ---- Performance ---- */
.perf-section {
  background: var(--bg2);
}
.perf-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 1.5rem;
  margin-bottom: 3rem;
}
.perf-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1.5rem;
  text-align: center;
  border-top: 3px solid var(--accent2);
}
.perf-metric {
  display: flex;
  align-items: baseline;
  justify-content: center;
  gap: .2rem;
  margin-bottom: .4rem;
}
.metric-value {
  font-size: 2.4rem;
  font-weight: 800;
  background: linear-gradient(135deg, var(--accent2), var(--accent));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  line-height: 1;
}
.metric-unit {
  font-size: .9rem;
  font-weight: 600;
  color: var(--text-muted);
}
.metric-label {
  font-size: .82rem;
  color: var(--text-muted);
}
.warning-box {
  display: flex;
  gap: 1rem;
  align-items: flex-start;
  background: rgba(255,107,107,.07);
  border: 1px solid rgba(255,107,107,.3);
  border-radius: var(--radius-sm);
  padding: 1.1rem 1.25rem;
  margin-top: 1.5rem;
  font-size: .9rem;
  color: var(--text-muted);
}
.warning-icon { font-size: 1.3rem; flex-shrink: 0; }
.warning-box strong { color: var(--danger); }

/* ---- About ---- */
.about-section {
  background: var(--bg);
}
.about-inner {
  display: grid;
  grid-template-columns: 1fr 320px;
  gap: 3rem;
  align-items: start;
}
.about-text .section-tag { display: inline-block; }
.about-text h2 {
  font-size: clamp(1.8rem, 4vw, 2.6rem);
  font-weight: 800;
  margin: .6rem 0 1rem;
}
.about-text p {
  color: var(--text-muted);
  margin-bottom: 1rem;
}
.cycling-section {
  margin: 1.5rem 0 2rem;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1.25rem 1.5rem;
}
.cycling-section h4 {
  font-size: .95rem;
  font-weight: 700;
  margin-bottom: .75rem;
}
.cycling-list {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: .5rem;
}
.cycling-list li {
  font-size: .9rem;
  color: var(--text-muted);
  display: flex;
  align-items: center;
  gap: .75rem;
}
.cycling-list em {
  font-style: normal;
  color: var(--accent3);
  font-weight: 600;
}
.year {
  background: var(--bg3);
  border: 1px solid var(--border);
  padding: .1rem .5rem;
  border-radius: 4px;
  font-family: var(--mono);
  font-size: .78rem;
  color: var(--accent);
  flex-shrink: 0;
}
.about-sidebar { min-width: 0; }

/* ---- Footer ---- */
.site-footer {
  background: var(--bg2);
  border-top: 1px solid var(--border);
}
.footer-inner {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: 2rem;
  padding: 3.5rem 1.5rem 2rem;
}
.footer-brand .logo-icon {
  font-size: 1.8rem;
  background: linear-gradient(135deg, var(--accent), var(--accent2));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}
.footer-brand .logo-text { font-size: 1.05rem; font-weight: 600; }
.footer-brand .logo-text strong { color: var(--accent); }
.footer-brand p {
  color: var(--text-muted);
  font-size: .85rem;
  margin-top: .5rem;
}
.footer-links h5 {
  font-size: .8rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: .08em;
  color: var(--text-muted);
  margin-bottom: 1rem;
}
.footer-links ul { list-style: none; display: flex; flex-direction: column; gap: .4rem; }
.footer-links ul li a {
  color: var(--text-muted);
  font-size: .875rem;
  transition: color .15s;
}
.footer-links ul li a:hover { color: var(--accent); text-decoration: none; }
.footer-bottom {
  border-top: 1px solid var(--border);
  padding: 1.25rem 1.5rem;
  text-align: center;
}
.footer-bottom p {
  font-size: .8rem;
  color: var(--text-muted);
}

/* ---- Blog card grid ---- */
.blog-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 1.5rem;
}
.blog-card {
  background: var(--bg2);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 1.6rem;
  transition: border-color .2s, transform .2s;
}
.blog-card:hover {
  border-color: var(--accent);
  transform: translateY(-2px);
}
.blog-card-meta {
  font-size: .78rem;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: .06em;
  margin-bottom: .6rem;
}
.blog-card-title {
  font-size: 1.05rem;
  font-weight: 700;
  margin-bottom: .6rem;
  line-height: 1.35;
}
.blog-card-title a { color: var(--text); }
.blog-card-title a:hover { color: var(--accent); text-decoration: none; }
.blog-card-excerpt {
  font-size: .875rem;
  color: var(--text-muted);
  line-height: 1.6;
  margin-bottom: 1rem;
}
.blog-card-link {
  font-size: .85rem;
  font-weight: 600;
  color: var(--accent);
}
.blog-card-link:hover { text-decoration: none; opacity: .8; }

/* ---- Inner page layout ---- */
.page-hero {
  background: linear-gradient(135deg, var(--bg2) 0%, var(--bg3) 100%);
  border-bottom: 1px solid var(--border);
  padding: 3rem 0 2rem;
}
.page-hero .breadcrumb {
  display: flex;
  align-items: center;
  gap: .5rem;
  font-size: .78rem;
  color: var(--text-muted);
  margin-bottom: 1rem;
  flex-wrap: wrap;
}
.breadcrumb a { color: var(--text-muted); }
.breadcrumb a:hover { color: var(--accent); }
.breadcrumb .sep { opacity: .4; }
.breadcrumb .current { color: var(--accent); font-weight: 600; }
.page-hero .phase-tag {
  display: inline-flex;
  align-items: center;
  gap: .4rem;
  background: rgba(124,92,252,.12);
  border: 1px solid rgba(124,92,252,.3);
  color: var(--accent2);
  padding: .25rem .8rem;
  border-radius: 100px;
  font-size: .72rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: .08em;
  margin-bottom: .75rem;
}
.page-hero h1 {
  font-size: clamp(1.7rem, 4vw, 2.8rem);
  font-weight: 800;
  letter-spacing: -.025em;
  margin-bottom: .75rem;
}
.page-hero .page-intro {
  color: var(--text-muted);
  font-size: 1rem;
  max-width: 680px;
}

.page-layout {
  display: grid;
  grid-template-columns: 1fr 300px;
  gap: 2.5rem;
  align-items: start;
  padding: 3rem 0 4rem;
}
.page-content { min-width: 0; }
.page-content h2 {
  font-size: 1.4rem;
  font-weight: 700;
  margin: 2.5rem 0 .75rem;
  padding-top: .5rem;
  border-top: 1px solid var(--border);
}
.page-content h2:first-child { margin-top: 0; border-top: none; padding-top: 0; }
.page-content h3 {
  font-size: 1.1rem;
  font-weight: 700;
  margin: 1.75rem 0 .5rem;
  color: var(--accent);
}
.page-content p { color: var(--text-muted); margin-bottom: 1rem; line-height: 1.75; }
.page-content p strong { color: var(--text); }
.page-content ul, .page-content ol {
  color: var(--text-muted);
  padding-left: 1.5rem;
  margin-bottom: 1rem;
  display: flex;
  flex-direction: column;
  gap: .4rem;
}
.page-content li { line-height: 1.6; }
.page-content a { color: var(--accent); }
.page-content a:hover { color: var(--accent3); }

.info-box {
  display: flex;
  gap: 1rem;
  align-items: flex-start;
  background: rgba(0,200,255,.06);
  border: 1px solid rgba(0,200,255,.2);
  border-radius: var(--radius-sm);
  padding: 1rem 1.25rem;
  margin: 1.25rem 0;
  font-size: .9rem;
  color: var(--text-muted);
}
.info-box.warn {
  background: rgba(255,209,102,.06);
  border-color: rgba(255,209,102,.25);
}
.info-box.warn strong { color: var(--warning); }
.info-box.danger {
  background: rgba(255,107,107,.07);
  border-color: rgba(255,107,107,.3);
}
.info-box.danger strong { color: var(--danger); }
.info-box-icon { font-size: 1.3rem; flex-shrink: 0; line-height: 1; }

.parts-table {
  width: 100%;
  border-collapse: collapse;
  margin: 1.25rem 0;
  font-size: .9rem;
}
.parts-table th {
  background: var(--surface);
  color: var(--text-muted);
  font-size: .75rem;
  text-transform: uppercase;
  letter-spacing: .06em;
  padding: .7rem 1rem;
  text-align: left;
  border-bottom: 2px solid var(--border);
}
.parts-table td {
  padding: .7rem 1rem;
  border-bottom: 1px solid var(--border);
  color: var(--text-muted);
}
.parts-table tr:hover td { background: rgba(255,255,255,.02); }
.parts-table td:first-child { color: var(--text); font-weight: 500; }

/* Step pagination */
.step-pagination {
  margin-top: 3rem;
  padding-top: 2rem;
  border-top: 1px solid var(--border);
}
.step-pagination-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  flex-wrap: wrap;
}
.step-pg-btn {
  display: inline-flex;
  align-items: center;
  gap: .4rem;
  padding: .65rem 1.25rem;
  border-radius: var(--radius-sm);
  background: var(--surface);
  border: 1px solid var(--border);
  color: var(--text);
  font-size: .88rem;
  font-weight: 600;
  transition: all .18s;
  text-decoration: none;
  max-width: 280px;
}
.step-pg-btn:hover { border-color: var(--accent); color: var(--accent); text-decoration: none; }
.step-pg-pos { font-size: .8rem; color: var(--text-muted); white-space: nowrap; }

/* Sidebar styles for inner pages */
.page-sidebar {
  position: sticky;
  top: 80px;
  display: flex;
  flex-direction: column;
  gap: .75rem;
}
.sidebar-steps { max-height: 70vh; overflow-y: auto; }
.sidebar-nav { display: flex; flex-direction: column; gap: 0; }
.sidebar-phase { margin-bottom: .75rem; }
.sidebar-phase-label {
  display: block;
  font-size: .68rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: .1em;
  color: var(--accent2);
  padding: .3rem .5rem;
  margin-bottom: .15rem;
}
.sidebar-link {
  display: block;
  font-size: .8rem;
  color: var(--text-muted);
  padding: .3rem .75rem;
  border-radius: 6px;
  transition: all .15s;
  border-left: 2px solid transparent;
  text-decoration: none;
}
.sidebar-link:hover { color: var(--text); background: rgba(255,255,255,.04); text-decoration: none; }
.sidebar-link.active {
  color: var(--accent);
  background: rgba(0,200,255,.08);
  border-left-color: var(--accent);
  font-weight: 600;
}

/* main-nav active state */
.main-nav a.active { color: var(--text); }

/* ---- Responsive ---- */
@media (max-width: 900px) {
  .steps-layout {
    grid-template-columns: 1fr;
  }
  .steps-sidebar {
    position: static;
  }
  .about-inner {
    grid-template-columns: 1fr;
  }
  .footer-inner {
    grid-template-columns: 1fr 1fr;
  }
  .page-layout {
    grid-template-columns: 1fr;
  }
  .page-sidebar {
    position: static;
  }
}

@media (max-width: 640px) {
  /* Remove backdrop-filter from header on mobile: iOS WebKit composites it as
     a GPU layer, which traps position:fixed children (the nav) inside the
     layer's own bounds instead of the viewport — giving the nav zero height. */
  .site-header {
    -webkit-backdrop-filter: none;
    backdrop-filter: none;
    background: rgba(10,14,26,.97);
  }
  .main-nav {
    display: none;
    flex-direction: column;
    position: fixed;
    inset: 64px 0 0 0;
    background: rgba(10,14,26,.99);
    padding: 1.5rem 2rem;
    gap: 0;
    z-index: 100;
    overflow-y: auto;
  }
  .main-nav.open { display: flex; }
  .main-nav a {
    font-size: 1.1rem;
    color: var(--text);
    padding: 1rem 0;
    border-bottom: 1px solid var(--border);
    font-weight: 500;
  }
  .main-nav a:hover { color: var(--accent); text-decoration: none; }
  .main-nav a.active { color: var(--accent); }
  .main-nav .btn-nav {
    margin-top: 1.5rem;
    border-bottom: none;
    text-align: center;
    padding: .85rem 1.5rem;
    font-size: 1rem;
    border-radius: var(--radius-sm);
    align-self: stretch;
  }
  /* Fix iOS WebKit compositing: make toggle button position:fixed so it
     lives on its own GPU layer above the nav overlay (z-index 100).
     position:sticky header can't beat a position:fixed layer in iOS hit-testing. */
  .nav-toggle {
    display: block;
    position: fixed;
    top: 10px;
    right: 1.5rem;
    z-index: 300;
  }
  .hero { padding: 3rem 0 2rem; }
  .hero-stats { gap: 0; padding: 1rem; }
  .stat { padding: 0 .75rem; }
  .stat-num { font-size: 1.4rem; }
  .cards-grid { grid-template-columns: 1fr; }
  .footer-inner { grid-template-columns: 1fr; }
  .section { padding: 3rem 0; }
  .code-block { font-size: .75rem; }
}