/* ─── Design tokens ─── */
:root {
  --bg: #0a0c10;
  --bg-elevated: #12161d;
  --bg-card: rgba(18, 22, 29, 0.82);
  --border: rgba(255, 255, 255, 0.07);
  --border-hover: rgba(255, 255, 255, 0.14);
  --text: #e6edf3;
  --text-muted: #8b949e;
  --accent: #d97757;
  --accent-2: #e8927a;
  --accent-3: #b45309;
  --accent-2-rgb: 232, 146, 122;
  --link: #f0b892;
  --link-hover: #fae5d3;
  --link-muted: #c99575;
  --accent-glow: rgba(217, 119, 87, 0.28);
  --accent-rgb: 217, 119, 87;
  --font-sans: 'IBM Plex Sans', system-ui, sans-serif;
  --font-display: 'JetBrains Mono', ui-monospace, monospace;
  --font-mono: 'JetBrains Mono', ui-monospace, monospace;
  --radius: 10px;
  --radius-sm: 6px;
  --nav-height: 64px;
}

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

html {
  scroll-behavior: smooth;
  scroll-padding-top: calc(var(--nav-height) + 24px);
}

body {
  font-family: var(--font-sans);
  background: var(--bg);
  color: var(--text);
  line-height: 1.6;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
}

/* Readable links on dark backgrounds */
a:not(.btn):not(.nav__logo):not(.nav__cta):not(.nav__links a):not(.nav__mobile a):not(.doc-nav-card):not(.provider-card):not(.feature-card) {
  color: var(--link);
  text-decoration: underline;
  text-underline-offset: 3px;
  text-decoration-color: rgba(240, 184, 146, 0.35);
  transition: color 0.2s, text-decoration-color 0.2s;
}

a:not(.btn):not(.nav__logo):not(.nav__cta):not(.nav__links a):not(.nav__mobile a):not(.doc-nav-card):not(.provider-card):not(.feature-card):hover {
  color: var(--link-hover);
  text-decoration-color: var(--link-hover);
}

/* ─── Aurora background ─── */
.aurora {
  position: fixed;
  inset: 0;
  z-index: -2;
  overflow: hidden;
  pointer-events: none;
}

.aurora__blob {
  position: absolute;
  border-radius: 50%;
  filter: blur(100px);
  opacity: 0.28;
  animation: drift 20s ease-in-out infinite;
}

.aurora__blob--1 {
  width: 60vw;
  height: 60vw;
  top: -20%;
  left: -10%;
  background: radial-gradient(circle, var(--accent) 0%, transparent 70%);
  animation-delay: 0s;
}

.aurora__blob--2 {
  width: 50vw;
  height: 50vw;
  top: 30%;
  right: -15%;
  background: radial-gradient(circle, var(--accent-2) 0%, transparent 70%);
  animation-delay: -7s;
}

.aurora__blob--3 {
  width: 40vw;
  height: 40vw;
  bottom: -10%;
  left: 30%;
  background: radial-gradient(circle, var(--accent-3) 0%, transparent 70%);
  animation-delay: -14s;
}

@keyframes drift {
  0%, 100% { transform: translate(0, 0) scale(1); }
  33% { transform: translate(3%, 5%) scale(1.05); }
  66% { transform: translate(-2%, -3%) scale(0.95); }
}

.grid-overlay {
  position: fixed;
  inset: 0;
  z-index: -1;
  background-image:
    linear-gradient(rgba(255,255,255,0.035) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,0.035) 1px, transparent 1px);
  background-size: 48px 48px;
  mask-image: radial-gradient(ellipse 80% 60% at 50% 0%, black 20%, transparent 70%);
  pointer-events: none;
}

/* ─── Navigation ─── */
.nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  height: var(--nav-height);
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 clamp(1.25rem, 4vw, 3rem);
  z-index: 100;
  background: rgba(10, 12, 16, 0.82);
  backdrop-filter: blur(20px) saturate(1.4);
  border-bottom: 1px solid var(--border);
}

.nav__logo {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-family: var(--font-mono);
  font-weight: 600;
  font-size: 0.92rem;
  color: var(--text);
  text-decoration: none;
  letter-spacing: -0.03em;
}

.nav__mark {
  color: var(--accent);
  font-size: 1.2rem;
}

.nav__links {
  display: none;
  gap: 2rem;
}

.nav__links a {
  color: var(--text-muted);
  text-decoration: none;
  font-family: var(--font-mono);
  font-size: 0.78rem;
  font-weight: 500;
  transition: color 0.2s;
}

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

.nav__cta {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.55rem 1.1rem;
  background: rgba(255,255,255,0.06);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  color: var(--text);
  text-decoration: none;
  font-family: var(--font-mono);
  font-size: 0.8rem;
  font-weight: 500;
  transition: all 0.25s;
}

.nav__cta:hover {
  background: rgba(255,255,255,0.1);
  border-color: var(--border-hover);
  transform: translateY(-1px);
}

@media (min-width: 768px) {
  .nav__links { display: flex; }
}

/* ─── Hero ─── */
.hero {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  text-align: center;
  padding: calc(var(--nav-height) + 3rem) 1.5rem 4rem;
  max-width: 1100px;
  margin: 0 auto;
}

.hero__badge {
  display: inline-flex;
  align-items: center;
  gap: 0.6rem;
  padding: 0.4rem 1rem 0.4rem 0.75rem;
  background: rgba(var(--accent-rgb), 0.1);
  border: 1px solid rgba(var(--accent-rgb), 0.28);
  border-radius: var(--radius-sm);
  font-family: var(--font-mono);
  font-size: 0.72rem;
  font-weight: 500;
  color: var(--accent);
  margin-bottom: 2rem;
  letter-spacing: 0.02em;
}

.pulse {
  width: 8px;
  height: 8px;
  background: var(--accent);
  border-radius: 50%;
  animation: pulse 2s ease-in-out infinite;
}

@keyframes pulse {
  0%, 100% { opacity: 1; box-shadow: 0 0 0 0 rgba(var(--accent-rgb), 0.5); }
  50% { opacity: 0.8; box-shadow: 0 0 0 8px rgba(var(--accent-rgb), 0); }
}

.hero__title {
  font-family: var(--font-display);
  font-size: clamp(2rem, 5.5vw, 3.75rem);
  font-weight: 600;
  line-height: 1.15;
  letter-spacing: -0.04em;
  margin-bottom: 1.5rem;
}

.hero__title em {
  font-style: normal;
  color: var(--accent);
}

.hero__subtitle {
  font-size: clamp(1rem, 2vw, 1.2rem);
  color: var(--text-muted);
  max-width: 680px;
  margin: 0 auto 2.5rem;
  font-weight: 400;
  line-height: 1.7;
}

.hero__subtitle code {
  font-family: var(--font-mono);
  font-size: 0.88em;
  color: var(--text);
  background: rgba(255, 255, 255, 0.06);
  padding: 0.1em 0.35em;
  border-radius: 4px;
}

.hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
  justify-content: center;
  margin-bottom: 4rem;
}

.btn {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.85rem 1.75rem;
  border-radius: var(--radius-sm);
  font-family: var(--font-mono);
  font-size: 0.88rem;
  font-weight: 500;
  text-decoration: none;
  transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  cursor: pointer;
  border: none;
}

.btn--primary {
  background: var(--accent);
  color: #0a0c10;
  box-shadow: 0 4px 20px var(--accent-glow), inset 0 1px 0 rgba(255,255,255,0.2);
}

.btn--primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 32px var(--accent-glow), inset 0 1px 0 rgba(255,255,255,0.2);
}

.btn--ghost {
  background: transparent;
  color: var(--text);
  border: 1px solid var(--border);
}

.btn--ghost:hover {
  background: rgba(255,255,255,0.05);
  border-color: var(--border-hover);
}

.btn--large {
  padding: 1rem 2rem;
  font-size: 1rem;
}

/* ─── Terminal ─── */
.hero__terminal {
  width: 100%;
  max-width: 720px;
  position: relative;
}

.terminal {
  background: rgba(10, 12, 22, 0.85);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
  backdrop-filter: blur(12px);
  box-shadow:
    0 0 0 1px rgba(255,255,255,0.03) inset,
    0 24px 80px rgba(0,0,0,0.5),
    0 0 80px rgba(var(--accent-rgb), 0.06);
  text-align: left;
}

.terminal__bar {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 12px 16px;
  background: rgba(0,0,0,0.3);
  border-bottom: 1px solid var(--border);
}

.terminal__dot {
  width: 12px;
  height: 12px;
  border-radius: 50%;
}

.terminal__dot--red { background: #ff5f57; }
.terminal__dot--yellow { background: #febc2e; }
.terminal__dot--green { background: #28c840; }

.terminal__title {
  margin-left: auto;
  font-size: 0.75rem;
  color: var(--text-muted);
  font-family: var(--font-mono);
}

.terminal__body {
  padding: 1.25rem 1.5rem;
  font-family: var(--font-mono);
  font-size: 0.82rem;
  line-height: 1.8;
}

.terminal__line { color: var(--text); }
.terminal__line--dim { color: var(--text-muted); }
.terminal__line--accent { color: var(--accent-2); }

.prompt { color: var(--accent); margin-right: 0.5rem; }

.cursor-blink {
  animation: blink 1s step-end infinite;
}

@keyframes blink {
  50% { opacity: 0; }
}

.hero__dialects {
  display: flex;
  flex-wrap: wrap;
  gap: 0.6rem;
  justify-content: center;
  margin-top: 1.5rem;
}

.dialect-chip {
  padding: 0.35rem 0.85rem;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  font-family: var(--font-mono);
  font-size: 0.72rem;
  color: var(--text-muted);
  animation: float-in 0.6s ease backwards;
  animation-delay: calc(var(--delay) * 0.1s + 0.8s);
  transition: all 0.3s;
}

.dialect-chip:hover {
  color: var(--accent-2);
  border-color: rgba(var(--accent-2-rgb), 0.35);
  transform: translateY(-2px);
}

@keyframes float-in {
  from { opacity: 0; transform: translateY(12px); }
  to { opacity: 1; transform: translateY(0); }
}

/* ─── Stats ─── */
.stats {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1px;
  max-width: 900px;
  margin: 0 auto 6rem;
  padding: 0 1.5rem;
  background: var(--border);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
}

.stat {
  background: var(--bg-elevated);
  padding: 2rem 1.5rem;
  text-align: center;
}

.stat__num {
  display: block;
  font-family: var(--font-display);
  font-size: clamp(1.5rem, 3.5vw, 2.25rem);
  font-weight: 600;
  color: var(--accent);
  margin-bottom: 0.35rem;
}

.stat__label {
  font-family: var(--font-mono);
  font-size: 0.68rem;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.06em;
  font-weight: 500;
}

@media (min-width: 640px) {
  .stats { grid-template-columns: repeat(4, 1fr); }
}

/* ─── CLIProxyAPI comparison ─── */
.compare {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1.25rem;
  margin-bottom: 1.5rem;
}

@media (min-width: 768px) {
  .compare { grid-template-columns: 1fr 1fr; }
}

.compare__col {
  padding: 1.75rem;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
}

.compare__col--manual {
  border-color: rgba(210, 153, 34, 0.25);
}

.compare__col--ours {
  border-color: rgba(var(--accent-rgb), 0.3);
  background: rgba(var(--accent-rgb), 0.04);
}

.compare__label {
  display: inline-block;
  font-family: var(--font-mono);
  font-size: 0.68rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  margin-bottom: 1rem;
  padding: 0.25rem 0.55rem;
  border-radius: var(--radius-sm);
}

.compare__col--manual .compare__label {
  color: var(--accent-3);
  background: rgba(210, 153, 34, 0.12);
}

.compare__col--ours .compare__label {
  color: var(--accent);
  background: rgba(var(--accent-rgb), 0.12);
}

.compare__col h3 {
  font-family: var(--font-display);
  font-size: 1.05rem;
  font-weight: 600;
  margin-bottom: 1rem;
  letter-spacing: -0.02em;
}

.compare__list {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 0.65rem;
}

.compare__list li {
  position: relative;
  padding-left: 1.35rem;
  font-size: 0.88rem;
  color: var(--text-muted);
  line-height: 1.5;
}

.compare__list li::before {
  position: absolute;
  left: 0;
  font-family: var(--font-mono);
  font-size: 0.75rem;
  line-height: 1.5;
}

.compare__col--manual .compare__list li::before {
  content: "−";
  color: var(--accent-3);
}

.compare__col--ours .compare__list li::before {
  content: "+";
  color: var(--accent);
}

.compare__list code {
  font-family: var(--font-mono);
  font-size: 0.82em;
  color: var(--text);
}

.compare__footnote {
  text-align: center;
  font-size: 0.88rem;
  color: var(--text-muted);
  max-width: 680px;
  margin: 0 auto;
}

.compare__footnote a {
  font-weight: 500;
}

/* ─── Sections ─── */
.section {
  padding: 6rem 1.5rem;
  max-width: 1100px;
  margin: 0 auto;
}

.section--dark {
  max-width: none;
  padding-left: clamp(1.5rem, 4vw, 3rem);
  padding-right: clamp(1.5rem, 4vw, 3rem);
  background: linear-gradient(180deg, transparent, rgba(18, 22, 29, 0.55) 20%, rgba(18, 22, 29, 0.55) 80%, transparent);
}

.section--accent {
  max-width: none;
  background: linear-gradient(135deg, rgba(var(--accent-rgb), 0.05), rgba(var(--accent-2-rgb), 0.04));
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
}

.section__header {
  text-align: center;
  max-width: 680px;
  margin: 0 auto 4rem;
}

.section__eyebrow {
  display: inline-block;
  font-family: var(--font-mono);
  font-size: 0.7rem;
  font-weight: 500;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--accent);
  margin-bottom: 1rem;
}

.section__header h2 {
  font-family: var(--font-display);
  font-size: clamp(1.5rem, 3.5vw, 2.25rem);
  font-weight: 600;
  line-height: 1.2;
  letter-spacing: -0.04em;
  margin-bottom: 1rem;
}

.section__header p {
  color: var(--text-muted);
  font-size: 1.05rem;
}

/* ─── Flow diagram ─── */
.flow {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 1.5rem;
  margin-bottom: 4rem;
}

.flow__step {
  flex: 1;
  text-align: center;
  padding: 2rem 1.5rem;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  backdrop-filter: blur(8px);
  max-width: 320px;
  width: 100%;
  transition: border-color 0.3s, transform 0.3s;
}

.flow__step:hover {
  border-color: var(--border-hover);
  transform: translateY(-4px);
}

.flow__icon {
  font-size: 2rem;
  margin-bottom: 1rem;
}

.flow__step h3 {
  font-size: 1.1rem;
  margin-bottom: 0.5rem;
}

.flow__step p {
  font-size: 0.9rem;
  color: var(--text-muted);
}

.flow__step code {
  font-family: var(--font-mono);
  font-size: 0.85em;
  color: var(--accent-2);
}

.flow__arrow {
  font-size: 1.5rem;
  color: var(--text-muted);
  transform: rotate(90deg);
}

@media (min-width: 900px) {
  .flow {
    flex-direction: row;
    justify-content: center;
    align-items: stretch;
  }
  .flow__arrow { transform: none; align-self: center; }
  .flow__step { max-width: none; }
}

/* ─── Feature cards ─── */
.features {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1.25rem;
}

@media (min-width: 640px) {
  .features { grid-template-columns: repeat(2, 1fr); }
}

.feature-card {
  position: relative;
  padding: 2rem;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
  transition: border-color 0.3s, transform 0.3s;
}

.feature-card:hover {
  border-color: rgba(var(--accent-rgb), 0.35);
  transform: translateY(-2px);
}

.feature-card__glow {
  position: absolute;
  top: -50%;
  right: -50%;
  width: 100%;
  height: 100%;
  background: radial-gradient(circle, var(--accent-glow) 0%, transparent 60%);
  opacity: 0;
  transition: opacity 0.4s;
  pointer-events: none;
}

.feature-card:hover .feature-card__glow { opacity: 1; }

.feature-card__icon {
  font-size: 1.75rem;
  display: block;
  margin-bottom: 1rem;
}

.feature-card h3 {
  font-size: 1.15rem;
  margin-bottom: 0.6rem;
}

.feature-card p {
  font-size: 0.9rem;
  color: var(--text-muted);
  line-height: 1.65;
}

.feature-card code {
  font-family: var(--font-mono);
  font-size: 0.85em;
  color: var(--accent-2);
  background: rgba(var(--accent-2-rgb), 0.1);
  padding: 0.1em 0.4em;
  border-radius: 4px;
}

/* ─── Provider grid ─── */
.provider-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1rem;
  max-width: 1100px;
  margin: 0 auto;
}

@media (min-width: 540px) {
  .provider-grid { grid-template-columns: repeat(2, 1fr); }
}

@media (min-width: 900px) {
  .provider-grid { grid-template-columns: repeat(4, 1fr); }
}

.provider-card {
  padding: 1.5rem;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  transition: all 0.35s cubic-bezier(0.4, 0, 0.2, 1);
  cursor: default;
}

.provider-card:hover {
  border-color: var(--border-hover);
  transform: translateY(-4px) scale(1.01);
  box-shadow: 0 12px 40px rgba(0,0,0,0.3);
}

.provider-card[data-provider="openai"]:hover { border-color: rgba(16, 163, 127, 0.4); }
.provider-card[data-provider="kimi"]:hover { border-color: rgba(var(--accent-rgb), 0.4); }
.provider-card[data-provider="gemini"]:hover { border-color: rgba(66, 133, 244, 0.4); }
.provider-card[data-provider="xai"]:hover { border-color: rgba(255, 255, 255, 0.25); }
.provider-card[data-provider="cursor"]:hover { border-color: rgba(var(--accent-2-rgb), 0.4); }
.provider-card[data-provider="copilot"]:hover { border-color: rgba(var(--accent-2-rgb), 0.35); }
.provider-card[data-provider="glm"]:hover { border-color: rgba(210, 153, 34, 0.4); }
.provider-card[data-provider="anthropic"]:hover { border-color: rgba(212, 165, 116, 0.4); }

.provider-card__header {
  display: flex;
  flex-direction: column;
  gap: 0.35rem;
  margin-bottom: 0.75rem;
}

.provider-card__name {
  font-weight: 600;
  font-size: 1rem;
}

.provider-card__header code {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  color: var(--accent);
  background: rgba(var(--accent-rgb), 0.1);
  padding: 0.2em 0.5em;
  border-radius: 4px;
  width: fit-content;
}

.provider-card p {
  font-size: 0.82rem;
  color: var(--text-muted);
  margin-bottom: 1rem;
  line-height: 1.5;
}

.provider-card__cmd {
  font-family: var(--font-mono);
  font-size: 0.8rem;
  color: var(--accent-2);
}

/* ─── Config tabs ─── */
.config-tabs {
  max-width: 800px;
  margin: 0 auto;
}

.config-tabs__nav {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  margin-bottom: 1rem;
}

.config-tab {
  padding: 0.5rem 1rem;
  background: transparent;
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  color: var(--text-muted);
  font-family: var(--font-mono);
  font-size: 0.78rem;
  font-weight: 500;
  cursor: pointer;
  transition: all 0.25s;
}

.config-tab:hover {
  color: var(--text);
  border-color: var(--border-hover);
}

.config-tab.active {
  background: rgba(var(--accent-rgb), 0.12);
  border-color: rgba(var(--accent-rgb), 0.4);
  color: var(--text);
}

.config-panel {
  display: none;
  animation: fade-up 0.4s ease;
}

.config-panel.active { display: block; }

@keyframes fade-up {
  from { opacity: 0; transform: translateY(8px); }
  to { opacity: 1; transform: translateY(0); }
}

.code-block {
  background: rgba(10, 12, 22, 0.9);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
}

.code-block__header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0.75rem 1.25rem;
  background: rgba(0,0,0,0.25);
  border-bottom: 1px solid var(--border);
  font-size: 0.8rem;
  color: var(--text-muted);
}

.copy-btn {
  padding: 0.35rem 0.75rem;
  background: rgba(255,255,255,0.06);
  border: 1px solid var(--border);
  border-radius: 6px;
  color: var(--text-muted);
  font-family: var(--font-mono);
  font-size: 0.72rem;
  cursor: pointer;
  transition: all 0.2s;
}

.copy-btn:hover {
  color: var(--text);
  background: rgba(255,255,255,0.1);
}

.copy-btn.copied {
  color: var(--accent);
  border-color: rgba(var(--accent-rgb), 0.35);
}

.code-block pre {
  padding: 1.25rem 1.5rem;
  overflow-x: auto;
}

.code-block code {
  font-family: var(--font-mono);
  font-size: 0.8rem;
  line-height: 1.75;
  color: #c9d1d9;
}

/* ─── Security section ─── */
.security-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 3rem;
  max-width: 1100px;
  margin: 0 auto;
  padding: 0 1.5rem;
  align-items: center;
}

@media (min-width: 900px) {
  .security-grid { grid-template-columns: 1fr 1fr; }
}

.security-content h2 {
  font-family: var(--font-display);
  font-size: clamp(1.35rem, 3vw, 2rem);
  font-weight: 600;
  letter-spacing: -0.03em;
  margin-bottom: 1rem;
}

.security-content p {
  color: var(--text-muted);
  margin-bottom: 1.5rem;
}

.security-content code {
  font-family: var(--font-mono);
  font-size: 0.85em;
  color: var(--accent-2);
}

.security-list {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}

.security-list li {
  position: relative;
  padding-left: 1.5rem;
  font-size: 0.95rem;
  color: var(--text-muted);
}

.security-list li::before {
  content: '✓';
  position: absolute;
  left: 0;
  color: var(--accent);
  font-weight: 600;
}

.security-list code {
  font-family: var(--font-mono);
  font-size: 0.85em;
  color: var(--accent-2);
}

/* ─── Isolation diagram ─── */
.isolation-diagram {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 1rem;
}

.iso-box {
  padding: 1.25rem 1.5rem;
  border-radius: var(--radius-sm);
  border: 1px solid var(--border);
  background: var(--bg-card);
  text-align: center;
  width: 100%;
  max-width: 280px;
}

.iso-box--global {
  border-style: dashed;
  opacity: 0.6;
}

.iso-label {
  display: block;
  font-family: var(--font-mono);
  font-size: 0.9rem;
  margin-bottom: 0.35rem;
}

.iso-status {
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.1em;
}

.iso-status--untouched { color: var(--text-muted); }

.iso-detail {
  display: block;
  font-size: 0.7rem;
  color: var(--text-muted);
  font-family: var(--font-mono);
  margin-top: 0.25rem;
}

.iso-connector {
  width: 2px;
  height: 24px;
  background: linear-gradient(to bottom, var(--border), var(--accent));
}

.iso-row {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  justify-content: center;
}

.iso-box--dialect {
  flex: 1;
  min-width: 140px;
  max-width: 180px;
  border-color: rgba(var(--accent-rgb), 0.25);
  transition: transform 0.3s, box-shadow 0.3s;
}

.iso-box--dialect:hover {
  transform: translateY(-3px);
  box-shadow: 0 8px 24px rgba(var(--accent-rgb), 0.12);
}

/* ─── CTA ─── */
.cta {
  padding: 6rem 1.5rem;
}

.cta__inner {
  max-width: 640px;
  margin: 0 auto;
  text-align: center;
}

.cta__inner h2 {
  font-family: var(--font-display);
  font-size: clamp(1.5rem, 3.5vw, 2.25rem);
  font-weight: 600;
  letter-spacing: -0.03em;
  margin-bottom: 1rem;
}

.cta__inner p {
  color: var(--text-muted);
  font-size: 1.1rem;
  margin-bottom: 2.5rem;
}

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

/* ─── Footer ─── */
.footer {
  padding: 3rem 1.5rem 2.5rem;
  text-align: center;
  border-top: 1px solid var(--border);
}

.footer p {
  font-size: 0.85rem;
  color: var(--text-muted);
  max-width: 720px;
  margin: 0 auto 1rem;
  line-height: 1.65;
}

.footer__platform {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  justify-content: center;
  margin-bottom: 1.25rem;
}

.footer__badge {
  display: inline-flex;
  align-items: center;
  padding: 0.35rem 0.85rem;
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.02em;
  text-transform: uppercase;
  color: var(--accent-2);
  background: rgba(var(--accent-rgb), 0.08);
  border: 1px solid rgba(var(--accent-rgb), 0.22);
  border-radius: var(--radius-sm);
}

.footer__badge--muted {
  color: var(--text-muted);
  background: rgba(255, 255, 255, 0.03);
  border-color: var(--border);
  text-transform: none;
  font-weight: 500;
}

.footer__disclaimer,
.footer__notice {
  font-size: 0.8rem;
}

.footer__disclaimer a,
.footer__notice a {
  color: var(--link-muted);
  text-decoration: underline;
  text-underline-offset: 2px;
  transition: color 0.2s;
}

.footer__disclaimer a:hover,
.footer__notice a:hover {
  color: var(--link-hover);
}

.footer__copyright {
  font-size: 0.78rem;
  color: rgba(255, 255, 255, 0.35);
  margin-bottom: 1.25rem !important;
}

.footer__links {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  justify-content: center;
  align-items: center;
}

.footer__links a {
  color: var(--link-muted);
  text-decoration: underline;
  text-underline-offset: 2px;
  transition: color 0.2s;
}

.footer__links a:hover { color: var(--link-hover); }

.footer__links span { color: var(--border); }

/* ─── Legal page ─── */
.legal-card {
  padding: 1.5rem 1.75rem;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  margin-bottom: 1.25rem;
}

.legal-card h3 {
  font-family: var(--font-display);
  font-size: 1.05rem;
  font-weight: 600;
  margin: 0 0 0.35rem;
  border: none;
  padding: 0;
}

.legal-card h3 a {
  color: var(--text);
  text-decoration: none;
  transition: color 0.2s;
}

.legal-card h3 a:hover { color: var(--link); }

.legal-card__meta {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  color: var(--accent);
  margin-bottom: 0.85rem !important;
  text-transform: uppercase;
  letter-spacing: 0.04em;
}

.legal-card p,
.legal-card ul {
  font-size: 0.9rem;
  margin-bottom: 0.75rem;
}

.legal-card ul:last-child { margin-bottom: 0; }

.legal-card li { margin-bottom: 0.35rem; }

.callout--warning {
  border-color: rgba(255, 180, 80, 0.35);
  background: rgba(255, 180, 80, 0.06);
}

.callout--warning .callout__title { color: #ffb450; }

/* ─── Platform strip (home) ─── */
.platform-strip {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 1.5rem 2rem;
}

.platform-strip__inner {
  display: flex;
  flex-wrap: wrap;
  align-items: flex-start;
  gap: 1.25rem;
  padding: 1.5rem 1.75rem;
  background: rgba(255, 180, 80, 0.05);
  border: 1px solid rgba(255, 180, 80, 0.18);
  border-radius: var(--radius);
}

.platform-strip__icon {
  font-size: 1.5rem;
  line-height: 1;
  flex-shrink: 0;
}

.platform-strip__content h3 {
  font-size: 1rem;
  font-weight: 600;
  margin: 0 0 0.35rem;
  color: #ffb450;
}

.platform-strip__content p {
  font-size: 0.88rem;
  color: var(--text-muted);
  margin: 0;
  line-height: 1.6;
  max-width: 56rem;
}

.platform-strip__content a {
  color: var(--link);
  text-decoration: underline;
  text-underline-offset: 2px;
}

.platform-strip__content a:hover { color: var(--link-hover); }

/* ─── Scroll reveal ─── */
.reveal {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity 0.7s ease, transform 0.7s ease;
}

.reveal.visible {
  opacity: 1;
  transform: translateY(0);
}

/* ─── Doc pages ─── */
.page-hero {
  padding: calc(var(--nav-height) + 4rem) 1.5rem 3rem;
  max-width: 900px;
  margin: 0 auto;
  text-align: center;
}

.page-hero h1 {
  font-family: var(--font-display);
  font-size: clamp(1.75rem, 4vw, 2.75rem);
  font-weight: 600;
  letter-spacing: -0.04em;
  margin-bottom: 1rem;
}

.page-hero p {
  color: var(--text-muted);
  font-size: 1.1rem;
  max-width: 620px;
  margin: 0 auto;
  line-height: 1.7;
}

.page-hero__breadcrumb {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  font-size: 0.85rem;
  color: var(--text-muted);
  margin-bottom: 1.5rem;
}

.page-hero__breadcrumb a {
  color: var(--link);
  text-decoration: none;
}

.page-hero__breadcrumb a:hover { text-decoration: underline; }

.doc-layout {
  display: grid;
  grid-template-columns: 1fr;
  gap: 2rem;
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 1.5rem 6rem;
}

@media (min-width: 1024px) {
  .doc-layout {
    grid-template-columns: 240px 1fr;
    gap: 3rem;
  }
}

.doc-sidebar {
  display: none;
}

@media (min-width: 1024px) {
  .doc-sidebar {
    display: block;
    position: sticky;
    top: calc(var(--nav-height) + 1.5rem);
    align-self: start;
    max-height: calc(100vh - var(--nav-height) - 3rem);
    overflow-y: auto;
  }
}

.doc-sidebar__title {
  font-size: 0.7rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--text-muted);
  margin-bottom: 0.75rem;
}

.doc-sidebar nav {
  display: flex;
  flex-direction: column;
  gap: 0.25rem;
}

.doc-sidebar a {
  display: block;
  padding: 0.45rem 0.75rem;
  font-size: 0.875rem;
  color: var(--text-muted);
  text-decoration: none;
  border-radius: 8px;
  border-left: 2px solid transparent;
  transition: all 0.2s;
}

.doc-sidebar a:hover {
  color: var(--text);
  background: rgba(255,255,255,0.04);
}

.doc-sidebar a.active {
  color: var(--link);
  background: rgba(var(--accent-rgb), 0.1);
  border-left-color: var(--accent);
}

.doc-sidebar__group {
  margin-top: 1.25rem;
}

.doc-content {
  min-width: 0;
}

.doc-section {
  margin-bottom: 4rem;
  scroll-margin-top: calc(var(--nav-height) + 24px);
}

.doc-section h2 {
  font-family: var(--font-display);
  font-size: clamp(1.25rem, 2.5vw, 1.65rem);
  font-weight: 600;
  letter-spacing: -0.03em;
  margin-bottom: 1rem;
  padding-bottom: 0.75rem;
  border-bottom: 1px solid var(--border);
}

.doc-section h3 {
  font-size: 1.15rem;
  margin: 2rem 0 0.75rem;
  color: var(--text);
}

.doc-section p {
  color: var(--text-muted);
  margin-bottom: 1rem;
  line-height: 1.75;
}

.doc-section ul, .doc-section ol {
  color: var(--text-muted);
  margin: 0 0 1.25rem 1.25rem;
  line-height: 1.75;
}

.doc-section li { margin-bottom: 0.4rem; }

.doc-section code {
  font-family: var(--font-mono);
  font-size: 0.85em;
  color: var(--accent-2);
  background: rgba(var(--accent-2-rgb), 0.1);
  padding: 0.15em 0.45em;
  border-radius: 4px;
}

.doc-section pre {
  margin: 1.25rem 0;
}

.doc-section pre code {
  background: none;
  padding: 0;
  color: inherit;
}

.doc-table-wrap {
  overflow-x: auto;
  margin: 1.5rem 0;
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
}

.doc-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.875rem;
}

.doc-table th,
.doc-table td {
  padding: 0.75rem 1rem;
  text-align: left;
  border-bottom: 1px solid var(--border);
}

.doc-table th {
  background: rgba(0,0,0,0.25);
  color: var(--text);
  font-weight: 600;
  font-size: 0.8rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.doc-table td { color: var(--text-muted); }

.doc-table tr:last-child td { border-bottom: none; }

.doc-table a {
  color: var(--link);
}

.doc-table a:hover { color: var(--link-hover); }

.callout {
  padding: 1.25rem 1.5rem;
  border-radius: var(--radius-sm);
  margin: 1.5rem 0;
  border: 1px solid var(--border);
  background: var(--bg-card);
}

.callout--info {
  border-color: rgba(var(--accent-2-rgb), 0.35);
  background: rgba(var(--accent-2-rgb), 0.06);
}

.callout--warn {
  border-color: rgba(251, 191, 36, 0.3);
  background: rgba(251, 191, 36, 0.06);
}

.callout--important {
  border-color: rgba(210, 153, 34, 0.35);
  background: rgba(210, 153, 34, 0.06);
}

.callout__title {
  font-weight: 600;
  font-size: 0.9rem;
  margin-bottom: 0.5rem;
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.callout p:last-child { margin-bottom: 0; }

.steps {
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
  margin: 2rem 0;
}

.step {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 1.25rem;
  align-items: start;
}

.step__num {
  width: 36px;
  height: 36px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(var(--accent-rgb), 0.12);
  border: 1px solid rgba(var(--accent-rgb), 0.3);
  border-radius: 50%;
  font-family: var(--font-mono);
  font-weight: 600;
  font-size: 0.85rem;
  color: var(--accent);
  flex-shrink: 0;
}

.step__body h3 {
  margin: 0 0 0.5rem;
  font-size: 1.05rem;
}

.step__body p {
  margin-bottom: 0.75rem;
}

.doc-nav-cards {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1rem;
  margin-top: 3rem;
}

@media (min-width: 640px) {
  .doc-nav-cards { grid-template-columns: repeat(2, 1fr); }
}

.doc-nav-card {
  display: block;
  padding: 1.5rem;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  text-decoration: none;
  color: inherit;
  transition: all 0.3s;
}

.doc-nav-card:hover {
  border-color: rgba(var(--accent-rgb), 0.35);
  transform: translateY(-2px);
}

.doc-nav-card__label {
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--accent);
  margin-bottom: 0.5rem;
}

.doc-nav-card h3 {
  font-size: 1.1rem;
  margin-bottom: 0.35rem;
}

.doc-nav-card p {
  font-size: 0.875rem;
  color: var(--text-muted);
  margin: 0;
}

.nav__links a.active {
  color: var(--text);
}

.nav__toggle {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  background: transparent;
  border: 1px solid var(--border);
  border-radius: 8px;
  color: var(--text);
  cursor: pointer;
}

@media (min-width: 768px) {
  .nav__toggle { display: none; }
}

.nav__mobile {
  display: none;
  position: fixed;
  top: var(--nav-height);
  left: 0;
  right: 0;
  background: rgba(10, 12, 16, 0.98);
  border-bottom: 1px solid var(--border);
  padding: 1rem 1.5rem 1.5rem;
  z-index: 99;
  flex-direction: column;
  gap: 0.5rem;
}

.nav__mobile.open { display: flex; }

.nav__mobile a {
  padding: 0.75rem 1rem;
  color: var(--text-muted);
  text-decoration: none;
  border-radius: 8px;
  font-weight: 500;
}

.nav__mobile a:hover,
.nav__mobile a.active {
  color: var(--text);
  background: rgba(255,255,255,0.05);
}

.provider-detail {
  padding: 2rem;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  margin-bottom: 2rem;
  scroll-margin-top: calc(var(--nav-height) + 24px);
}

.provider-detail__header {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.75rem;
  margin-bottom: 1rem;
}

.provider-detail__header h2 {
  font-family: var(--font-display);
  font-size: 1.25rem;
  font-weight: 600;
  letter-spacing: -0.03em;
  margin: 0;
  border: none;
  padding: 0;
}

.provider-detail__badge {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  padding: 0.25rem 0.6rem;
  background: rgba(var(--accent-rgb), 0.1);
  border: 1px solid rgba(var(--accent-rgb), 0.25);
  border-radius: var(--radius-sm);
  color: var(--accent);
}

.provider-detail p {
  margin-bottom: 1rem;
}

.command-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 0.75rem;
  margin: 1.5rem 0;
}

@media (min-width: 640px) {
  .command-grid { grid-template-columns: repeat(2, 1fr); }
}

.command-item {
  padding: 1rem 1.25rem;
  background: rgba(10, 12, 22, 0.6);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
}

.command-item code {
  display: block;
  font-family: var(--font-mono);
  font-size: 0.8rem;
  color: var(--accent-2);
  margin-bottom: 0.35rem;
}

.command-item span {
  font-size: 0.8rem;
  color: var(--text-muted);
}

/* ─── Reduced motion ─── */
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }
  .reveal { opacity: 1; transform: none; }
  html { scroll-behavior: auto; }
}