@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700;800;900&family=JetBrains+Mono:wght@400;500;600&display=swap');

:root {
  --bg: #0a0a0f;
  --bg-card: #12121a;
  --bg-card-hover: #1a1a28;
  --border: #1e1e2e;
  --text: #e4e4ef;
  --text-muted: #8888a0;
  --accent: #6c5ce7;
  --accent-glow: rgba(108, 92, 231, 0.3);
  --green: #00d2a0;
  --green-glow: rgba(0, 210, 160, 0.2);
  --orange: #f5a623;
  --orange-glow: rgba(245, 166, 35, 0.2);
  --red: #ff4757;
  --red-glow: rgba(255, 71, 87, 0.2);
  --blue: #4da6ff;
  --blue-glow: rgba(77, 166, 255, 0.2);
  --pink: #e84393;
  --pink-glow: rgba(232, 67, 147, 0.2);
  --cyan: #00cec9;
  --cyan-glow: rgba(0, 206, 201, 0.2);
}

* { margin: 0; padding: 0; box-sizing: border-box; }

html {
  scroll-behavior: smooth;
  scroll-snap-type: y mandatory;
}

body {
  font-family: 'Inter', -apple-system, sans-serif;
  background: var(--bg);
  color: var(--text);
  overflow-x: hidden;
  line-height: 1.6;
}

/* --- Navigation --- */
nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  padding: 1rem 2rem;
  display: flex;
  justify-content: space-between;
  align-items: center;
  background: rgba(10, 10, 15, 0.8);
  backdrop-filter: blur(20px);
  border-bottom: 1px solid var(--border);
}

nav .logo {
  font-weight: 800;
  font-size: 1.1rem;
  letter-spacing: -0.02em;
  background: linear-gradient(135deg, var(--accent), var(--cyan));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

nav .nav-links {
  display: flex;
  gap: 0.5rem;
}

nav .nav-links a {
  color: var(--text-muted);
  text-decoration: none;
  font-size: 0.8rem;
  font-weight: 500;
  padding: 0.4rem 0.8rem;
  border-radius: 6px;
  transition: all 0.2s;
}

nav .nav-links a:hover,
nav .nav-links a.active {
  color: var(--text);
  background: var(--bg-card);
}

/* --- Slides --- */
.slide {
  min-height: 100vh;
  scroll-snap-align: start;
  display: flex;
  flex-direction: column;
  justify-content: center;
  padding: 6rem 4rem 4rem;
  position: relative;
  overflow: hidden;
}

.slide::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  pointer-events: none;
}

.container {
  max-width: 1200px;
  margin: 0 auto;
  width: 100%;
  position: relative;
  z-index: 1;
}

/* --- Hero --- */
#hero {
  text-align: center;
  background: radial-gradient(ellipse at 50% 30%, rgba(108, 92, 231, 0.08) 0%, transparent 60%);
}

#hero .badge {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.4rem 1rem;
  border: 1px solid var(--border);
  border-radius: 100px;
  font-size: 0.75rem;
  font-weight: 500;
  color: var(--text-muted);
  margin-bottom: 2rem;
  background: var(--bg-card);
}

#hero .badge .dot {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--green);
  animation: pulse 2s infinite;
}

@keyframes pulse {
  0%, 100% { opacity: 1; box-shadow: 0 0 0 0 var(--green-glow); }
  50% { opacity: 0.7; box-shadow: 0 0 0 8px transparent; }
}

#hero h1 {
  font-size: clamp(2.5rem, 6vw, 4.5rem);
  font-weight: 900;
  letter-spacing: -0.03em;
  line-height: 1.1;
  margin-bottom: 1.5rem;
}

#hero h1 .gradient {
  background: linear-gradient(135deg, var(--accent), var(--cyan), var(--pink));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-size: 200% 200%;
  animation: gradientShift 5s ease infinite;
}

@keyframes gradientShift {
  0%, 100% { background-position: 0% 50%; }
  50% { background-position: 100% 50%; }
}

#hero .subtitle {
  font-size: 1.2rem;
  color: var(--text-muted);
  max-width: 640px;
  margin: 0 auto 3rem;
  font-weight: 300;
}

.tech-stack {
  display: flex;
  justify-content: center;
  gap: 1rem;
  flex-wrap: wrap;
}

.tech-tag {
  padding: 0.5rem 1rem;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 8px;
  font-size: 0.8rem;
  font-weight: 500;
  font-family: 'JetBrains Mono', monospace;
  color: var(--text-muted);
  transition: all 0.3s;
}

.tech-tag:hover {
  border-color: var(--accent);
  color: var(--text);
  box-shadow: 0 0 20px var(--accent-glow);
}

#hero .made-by {
  display: inline-flex;
  align-items: center;
  gap: 0.55rem;
  margin-top: 2.75rem;
  padding: 0.45rem 0.95rem 0.45rem 0.75rem;
  border: 1px solid transparent;
  border-radius: 100px;
  background:
    linear-gradient(var(--bg-card), var(--bg-card)) padding-box,
    linear-gradient(135deg, rgba(108, 92, 231, 0.55), rgba(0, 206, 201, 0.45), rgba(232, 67, 147, 0.45)) border-box;
  font-size: 0.78rem;
  font-weight: 500;
  color: var(--text-muted);
  text-decoration: none;
  transition: color 0.3s, box-shadow 0.3s, transform 0.3s;
  animation: madeByIn 0.8s ease 0.6s both;
}
#hero .made-by strong {
  font-weight: 600;
  background: linear-gradient(135deg, var(--accent), var(--cyan));
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
}
#hero .made-by-icon { width: 14px; height: 14px; flex-shrink: 0; color: var(--cyan); transition: transform 0.5s ease; }
#hero .made-by-arrow { width: 12px; height: 12px; flex-shrink: 0; opacity: 0.6; transition: transform 0.3s ease, opacity 0.3s ease; }
#hero .made-by-short { display: none; }
#hero .made-by:hover,
#hero .made-by:focus-visible { color: var(--text); box-shadow: 0 0 24px var(--accent-glow); transform: translateY(-1px); }
#hero .made-by:focus-visible { outline: 2px solid var(--cyan); outline-offset: 3px; }
#hero .made-by:hover .made-by-icon,
#hero .made-by:focus-visible .made-by-icon { transform: scale(1.15) rotate(15deg); }
#hero .made-by:hover .made-by-arrow,
#hero .made-by:focus-visible .made-by-arrow { transform: translateY(2px); opacity: 1; }
@keyframes madeByIn {
  from { opacity: 0; translate: 0 8px; }
  to   { opacity: 1; translate: 0 0; }
}

/* --- Overview --- */
#overview {
  background: radial-gradient(ellipse at 20% 50%, rgba(0, 210, 160, 0.05) 0%, transparent 50%);
}

.section-header {
  margin-bottom: 3rem;
}

.section-header .label {
  font-size: 0.7rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.15em;
  color: var(--accent);
  margin-bottom: 0.5rem;
  font-family: 'JetBrains Mono', monospace;
}

.section-header h2 {
  font-size: clamp(1.8rem, 4vw, 2.8rem);
  font-weight: 800;
  letter-spacing: -0.02em;
  line-height: 1.2;
}

.overview-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 1.5rem;
}

.overview-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 16px;
  padding: 2rem;
  transition: all 0.3s;
  position: relative;
  overflow: hidden;
}

.overview-card:hover {
  background: var(--bg-card-hover);
  transform: translateY(-2px);
  border-color: rgba(108, 92, 231, 0.3);
}

.overview-card .icon {
  width: 48px;
  height: 48px;
  border-radius: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.4rem;
  margin-bottom: 1.2rem;
}

.overview-card h3 {
  font-size: 1.1rem;
  font-weight: 700;
  margin-bottom: 0.5rem;
}

.overview-card p {
  font-size: 0.85rem;
  color: var(--text-muted);
  line-height: 1.6;
}

.icon-youtrack { background: var(--orange-glow); }
.icon-github { background: var(--blue-glow); }
.icon-docker { background: var(--cyan-glow); }
.icon-npm { background: var(--green-glow); }
.icon-ai { background: var(--accent-glow); }
.icon-webhook { background: var(--pink-glow); }

/* --- Pipeline --- */
#pipeline {
  background: radial-gradient(ellipse at 80% 40%, rgba(108, 92, 231, 0.06) 0%, transparent 50%);
}

.pipeline-steps {
  display: flex;
  flex-direction: column;
  gap: 1rem;
  position: relative;
}

.pipeline-steps::before {
  content: '';
  position: absolute;
  left: 28px;
  top: 0;
  bottom: 0;
  width: 2px;
  background: linear-gradient(to bottom, var(--accent), var(--cyan), var(--green));
  opacity: 0.3;
}

.step {
  display: flex;
  gap: 1.5rem;
  align-items: flex-start;
  padding: 1.2rem;
  border-radius: 12px;
  transition: all 0.3s;
  position: relative;
}

.step:hover {
  background: var(--bg-card);
}

.step-number {
  width: 56px;
  height: 56px;
  min-width: 56px;
  border-radius: 14px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 800;
  font-size: 0.9rem;
  font-family: 'JetBrains Mono', monospace;
  position: relative;
  z-index: 1;
}

.step-number.sub-step {
  font-size: 0.75rem;
}

.step-direct .step-number {
  background: var(--bg-card);
  border: 2px solid var(--border);
  color: var(--text-muted);
}

.step-agent .step-number {
  background: linear-gradient(135deg, var(--accent), var(--cyan));
  color: white;
  box-shadow: 0 4px 15px var(--accent-glow);
}

.step-conditional .step-number {
  background: var(--bg-card);
  border: 2px dashed var(--orange);
  color: var(--orange);
}

.step-content h4 {
  font-size: 1rem;
  font-weight: 700;
  margin-bottom: 0.3rem;
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.step-content p {
  font-size: 0.82rem;
  color: var(--text-muted);
  line-height: 1.5;
}

.tag {
  font-size: 0.6rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  padding: 0.15rem 0.5rem;
  border-radius: 4px;
  font-family: 'JetBrains Mono', monospace;
}

.tag-agent {
  background: var(--accent-glow);
  color: var(--accent);
}

.tag-direct {
  background: rgba(136, 136, 160, 0.15);
  color: var(--text-muted);
}

.tag-conditional {
  background: var(--orange-glow);
  color: var(--orange);
}

/* --- Agents --- */
#agents {
  background: radial-gradient(ellipse at 50% 60%, rgba(232, 67, 147, 0.05) 0%, transparent 50%);
}

.agents-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 1.5rem;
  margin-bottom: 2rem;
}

.agent-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 16px;
  padding: 1.8rem;
  transition: all 0.3s;
  position: relative;
  overflow: hidden;
}

.agent-card::after {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  border-radius: 16px 16px 0 0;
}

.agent-card:nth-child(1)::after { background: linear-gradient(90deg, var(--orange), var(--pink)); }
.agent-card:nth-child(2)::after { background: linear-gradient(90deg, var(--pink), var(--accent)); }
.agent-card:nth-child(3)::after { background: linear-gradient(90deg, var(--accent), var(--blue)); }
.agent-card:nth-child(4)::after { background: linear-gradient(90deg, var(--blue), var(--cyan)); }
.agent-card:nth-child(5)::after { background: linear-gradient(90deg, var(--cyan), var(--green)); }
.agent-card:nth-child(6)::after { background: linear-gradient(90deg, var(--green), var(--orange)); }
.agent-card:nth-child(7)::after { background: linear-gradient(90deg, var(--red), var(--orange)); }
.agent-card:nth-child(8)::after { background: linear-gradient(90deg, var(--cyan), var(--blue)); }
.agent-card:nth-child(9)::after { background: linear-gradient(90deg, var(--accent), var(--pink)); }
.agent-card:nth-child(10)::after { background: linear-gradient(90deg, var(--pink), var(--cyan)); }
.agent-card:nth-child(11)::after { background: linear-gradient(90deg, var(--green), var(--accent)); }

.agent-card:hover {
  transform: translateY(-4px);
  border-color: rgba(108, 92, 231, 0.3);
  box-shadow: 0 12px 40px rgba(0, 0, 0, 0.3);
}

.agent-card .emoji {
  font-size: 2rem;
  margin-bottom: 1rem;
}

.agent-card h3 {
  font-size: 1.05rem;
  font-weight: 700;
  margin-bottom: 0.5rem;
}

.agent-card .desc {
  font-size: 0.8rem;
  color: var(--text-muted);
  margin-bottom: 1rem;
  line-height: 1.5;
}

.agent-card .returns {
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.7rem;
  color: var(--green);
  padding: 0.4rem 0.6rem;
  background: var(--green-glow);
  border-radius: 6px;
  display: inline-block;
}

.agent-card .max-iter {
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.7rem;
  color: var(--orange);
  padding: 0.4rem 0.6rem;
  background: var(--orange-glow);
  border-radius: 6px;
  display: inline-block;
  margin-left: 0.3rem;
}

.agent-badge {
  position: absolute;
  top: 12px;
  right: 12px;
  font-size: 0.6rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  padding: 0.25rem 0.6rem;
  border-radius: 6px;
  font-family: 'JetBrains Mono', monospace;
  z-index: 2;
}

.agent-badge-conditional {
  background: var(--orange-glow);
  color: var(--orange);
  border: 1px solid rgba(245, 166, 35, 0.3);
}

.agent-badge-mandatory {
  background: var(--accent-glow);
  color: var(--accent);
  border: 1px solid rgba(108, 92, 231, 0.3);
}

/* --- Orchestration diagram --- */
#orchestration {
  background: radial-gradient(ellipse at 30% 30%, rgba(0, 206, 201, 0.06) 0%, transparent 50%);
}

.orch-diagram {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 16px;
  padding: 2.5rem;
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.8rem;
  line-height: 2;
  overflow-x: auto;
  position: relative;
}

.orch-diagram .orch-title {
  color: var(--accent);
  font-weight: 700;
  font-size: 0.9rem;
  margin-bottom: 1rem;
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.orch-diagram .line {
  display: flex;
  gap: 0.5rem;
  padding-left: 1.5rem;
  position: relative;
}

.orch-diagram .line::before {
  content: '';
  position: absolute;
  left: 0.5rem;
  top: 0;
  bottom: 0;
  width: 1px;
  background: var(--border);
}

.orch-diagram .connector {
  color: var(--border);
}

.orch-diagram .agent-name {
  color: var(--cyan);
  font-weight: 600;
}

.orch-diagram .desc-text {
  color: var(--text-muted);
}

.orch-diagram .cond {
  color: var(--orange);
}

.orch-diagram .loop-text {
  color: var(--pink);
  font-style: italic;
}

/* --- Workflows --- */
#workflows {
  background: radial-gradient(ellipse at 60% 40%, rgba(108, 92, 231, 0.06) 0%, transparent 50%);
}

.workflows-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1.5rem;
}

.workflow-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 16px;
  padding: 2rem;
  transition: all 0.3s;
  position: relative;
  overflow: hidden;
}

.workflow-card:hover {
  background: var(--bg-card-hover);
  transform: translateY(-2px);
  border-color: rgba(108, 92, 231, 0.3);
}

.workflow-card .wf-icon {
  font-size: 1.8rem;
  margin-bottom: 0.8rem;
}

.workflow-card h3 {
  font-size: 1.05rem;
  font-weight: 700;
  margin-bottom: 0.5rem;
}

.workflow-card .wf-desc {
  font-size: 0.82rem;
  color: var(--text-muted);
  line-height: 1.6;
  margin-bottom: 1rem;
}

.mini-flow {
  background: rgba(0, 0, 0, 0.3);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 0.8rem 1rem;
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.68rem;
  color: var(--text-muted);
  line-height: 1.8;
  overflow-x: auto;
}

.mini-flow .mf-highlight {
  color: var(--cyan);
  font-weight: 600;
}

.mini-flow .mf-arrow {
  color: var(--border);
}

.workflow-card .wf-schedule {
  margin-top: 0.8rem;
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.7rem;
  color: var(--orange);
  padding: 0.3rem 0.6rem;
  background: var(--orange-glow);
  border-radius: 6px;
  display: inline-block;
}

/* --- Infrastructure --- */
#infra {
  background: radial-gradient(ellipse at 70% 60%, rgba(77, 166, 255, 0.06) 0%, transparent 50%);
}

.infra-layout {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 2rem;
}

.infra-block {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 16px;
  padding: 2rem;
}

.infra-block h3 {
  font-size: 1rem;
  font-weight: 700;
  margin-bottom: 1rem;
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.infra-item {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 0.6rem 0;
  border-bottom: 1px solid var(--border);
  font-size: 0.82rem;
}

.infra-item:last-child { border-bottom: none; }

.infra-item .label { color: var(--text-muted); }

.infra-item .value {
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.75rem;
  color: var(--cyan);
}

.code-block {
  background: rgba(0, 0, 0, 0.3);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 1.2rem;
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.75rem;
  line-height: 1.8;
  color: var(--text-muted);
  margin-top: 1rem;
  overflow-x: auto;
}

.code-block .comment { color: #555570; }
.code-block .keyword { color: var(--accent); }
.code-block .string { color: var(--green); }
.code-block .fn { color: var(--cyan); }

/* --- States --- */
#states {
  background: radial-gradient(ellipse at 40% 50%, rgba(245, 166, 35, 0.05) 0%, transparent 50%);
}

.state-flow {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  flex-wrap: wrap;
  margin: 2rem 0;
}

.state-node {
  padding: 0.8rem 1.5rem;
  border-radius: 12px;
  font-weight: 700;
  font-size: 0.85rem;
  border: 2px solid;
  text-align: center;
  min-width: 120px;
}

.state-open { border-color: var(--text-muted); color: var(--text-muted); background: rgba(136,136,160,0.08); }
.state-progress { border-color: var(--blue); color: var(--blue); background: var(--blue-glow); }
.state-verify { border-color: var(--green); color: var(--green); background: var(--green-glow); }
.state-waiting { border-color: var(--orange); color: var(--orange); background: var(--orange-glow); }
.state-done { border-color: var(--cyan); color: var(--cyan); background: var(--cyan-glow); }

.arrow {
  font-size: 1.5rem;
  color: var(--border);
}

.blocker-box {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-left: 4px solid var(--red);
  border-radius: 0 12px 12px 0;
  padding: 1.5rem 2rem;
  margin-top: 2rem;
}

.blocker-box h4 {
  color: var(--red);
  font-size: 0.9rem;
  margin-bottom: 0.5rem;
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.blocker-box p {
  font-size: 0.82rem;
  color: var(--text-muted);
  line-height: 1.6;
}

/* --- Colophon --- */
.colophon { padding: 2rem 4rem 4rem; scroll-margin-top: 5rem; }
.colophon-card {
  max-width: 880px; margin: 0 auto;
  display: grid; grid-template-columns: auto 1fr; gap: 1.75rem; align-items: start;
  padding: 2.5rem;
  background: radial-gradient(ellipse at 0% 0%, rgba(108, 92, 231, 0.10) 0%, transparent 55%), var(--bg-card);
  border: 1px solid var(--border); border-radius: 16px;
  position: relative; overflow: hidden;
  transition: border-color 0.3s, box-shadow 0.3s;
}
.colophon-card::after {
  content: ''; position: absolute; top: 0; left: 0; right: 0; height: 3px;
  background: linear-gradient(90deg, var(--accent), var(--cyan), var(--pink));
}
.colophon-card:hover { border-color: rgba(108, 92, 231, 0.3); box-shadow: 0 12px 40px rgba(0, 0, 0, 0.3); }
.colophon-emblem {
  width: 56px; height: 56px; border-radius: 14px;
  display: flex; align-items: center; justify-content: center;
  background: linear-gradient(135deg, var(--accent), var(--cyan));
  color: #fff; box-shadow: 0 4px 15px var(--accent-glow);
}
.colophon-emblem svg { width: 26px; height: 26px; }
.colophon.visible .colophon-emblem svg { animation: colophonSpin 1.2s cubic-bezier(0.65, 0, 0.35, 1) 0.2s 1; }
@keyframes colophonSpin { to { transform: rotate(360deg); } }
.colophon-label {
  font-family: 'JetBrains Mono', monospace; font-size: 0.7rem; font-weight: 600;
  text-transform: uppercase; letter-spacing: 0.15em; color: var(--accent); margin-bottom: 0.5rem;
}
.colophon-body h2 { font-size: clamp(1.3rem, 2.6vw, 1.6rem); font-weight: 800; letter-spacing: -0.02em; line-height: 1.25; margin-bottom: 0.6rem; }
.colophon-body p { font-size: 0.9rem; color: var(--text-muted); line-height: 1.65; max-width: 60ch; margin-bottom: 1.5rem; }
.colophon-flow { list-style: none; display: flex; flex-wrap: wrap; align-items: center; gap: 0.5rem; }
.colophon-flow li {
  display: inline-flex; align-items: center; gap: 0.5rem;
  font-family: 'JetBrains Mono', monospace; font-size: 0.7rem; font-weight: 500; color: var(--text-muted);
}
.colophon-flow li:not(:last-child)::after { content: '\2192'; opacity: 0.35; }
.colophon-flow .chip {
  display: inline-flex; align-items: center; gap: 0.35rem;
  padding: 0.3rem 0.65rem; border: 1px solid var(--border); border-radius: 6px;
  background: rgba(0, 0, 0, 0.3);
  transition: color 0.4s ease, border-color 0.4s ease, background 0.4s ease;
  transition-delay: calc(var(--i, 0) * 120ms + 300ms);
}
.colophon-flow .chip svg { width: 10px; height: 10px; }
.colophon.visible .colophon-flow .chip { color: var(--text); border-color: rgba(108, 92, 231, 0.35); }
.colophon.visible .colophon-flow .is-final .chip { color: var(--green); border-color: var(--green); background: var(--green-glow); }

/* --- Footer --- */
footer {
  padding: 3rem 4rem;
  border-top: 1px solid var(--border);
  text-align: center;
  color: var(--text-muted);
  font-size: 0.75rem;
  scroll-snap-align: end;
}

footer .footer-logo {
  font-weight: 800;
  font-size: 1rem;
  background: linear-gradient(135deg, var(--accent), var(--cyan));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  margin-bottom: 0.5rem;
}

/* --- Scroll animations --- */
.fade-in {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}

.fade-in.visible {
  opacity: 1;
  transform: translateY(0);
}

/* --- Responsive --- */
@media (max-width: 768px) {
  .slide { padding: 5rem 1.5rem 2rem; }
  nav { padding: 0.8rem 1rem; }
  nav .nav-links { display: none; }
  .infra-layout { grid-template-columns: 1fr; }
  .workflows-grid { grid-template-columns: 1fr; }
  .state-flow { flex-direction: column; }
  .arrow { transform: rotate(90deg); }
  .colophon { padding: 1rem 1.5rem 3rem; }
  .colophon-card { grid-template-columns: 1fr; gap: 1.25rem; padding: 1.75rem 1.5rem; }
  .colophon-emblem { width: 48px; height: 48px; border-radius: 12px; }
  .colophon-emblem svg { width: 22px; height: 22px; }
  footer { padding: 2rem 1.5rem; }
}

@media (max-width: 560px) {
  #hero .made-by-long { display: none; }
  #hero .made-by-short { display: inline; }
  #hero .made-by { margin-top: 2rem; }
}

@media (prefers-reduced-motion: reduce) {
  #hero .made-by { animation: none; }
  #hero .made-by, #hero .made-by-icon, #hero .made-by-arrow, .colophon-flow .chip { transition: none; }
  .colophon.visible .colophon-emblem svg { animation: none; }
}

/* --- Přepínač jazyka (CS/EN) --- */
nav { gap: 1rem; }
nav .nav-links { margin-left: auto; }

.visually-hidden {
  position: absolute;
  width: 1px;
  height: 1px;
  margin: -1px;
  padding: 0;
  overflow: hidden;
  clip-path: inset(50%);
  white-space: nowrap;
  border: 0;
}

.lang {
  display: flex;
  align-items: center;
  gap: 2px;
  flex-shrink: 0;
  padding: 3px;
  border: 1px solid var(--border);
  border-radius: 100px;
  background: var(--bg-card);
}

.lang-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.4rem;
  min-height: 32px;
  padding: 0 0.6rem;
  border-radius: 100px;
  color: var(--text-muted);
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.7rem;
  font-weight: 600;
  letter-spacing: 0.06em;
  line-height: 1;
  text-decoration: none;
  transition: color 0.2s, background 0.2s, box-shadow 0.2s;
}

.lang-flag {
  flex: none;
  width: 20px;
  height: 15px;
  border-radius: 2px;
  filter: grayscale(0.6);
  opacity: 0.7;
  transition: filter 0.2s, opacity 0.2s;
}

.lang-btn:hover {
  color: var(--text);
  background: var(--bg-card-hover);
}

.lang-btn:hover .lang-flag { filter: none; opacity: 1; }

.lang-btn.is-active {
  color: var(--text);
  background: var(--accent-glow);
  box-shadow: inset 0 0 0 1px rgba(108, 92, 231, 0.45);
}

.lang-btn.is-active .lang-flag { filter: none; opacity: 1; }

.lang-btn:focus-visible { outline: 2px solid var(--cyan); outline-offset: 3px; }

@media (max-width: 560px) {
  .lang-code {
    position: absolute;
    width: 1px;
    height: 1px;
    margin: -1px;
    padding: 0;
    overflow: hidden;
    clip-path: inset(50%);
    white-space: nowrap;
    border: 0;
  }
  .lang-btn { min-height: 36px; padding: 0 0.5rem; }
}

@media (prefers-reduced-motion: reduce) {
  .lang-btn, .lang-flag { transition: none; }
}