/* ========================================
   Oqto Website — Design System
   Mirrors the Oqto app: monospace, sharp corners, green accent
   ======================================== */

/* Fonts */
@import url("https://fonts.googleapis.com/css2?family=JetBrains+Mono:ital,wght@0,300;0,400;0,500;0,600;0,700;1,400&display=swap");

/* ── Light mode tokens ── */
:root {
  --bg: #f2f5f3;
  --bg-card: #ffffff;
  --bg-card-hover: #eef0ef;
  --bg-muted: #e8ebe9;
  --bg-code: #f0f0f0;
  --bg-dark: #0f1412;

  --fg: #222624;
  --fg-muted: #5a6360;
  --fg-subtle: #8a938e;
  --fg-inverse: #f2f5f3;

  --accent: #3ba77c;
  --accent-hover: #2e8a65;
  --accent-fg: #f2f5f3;
  --accent-subtle: rgba(59, 167, 124, 0.1);

  --border: #d0d5d2;
  --border-strong: #b5bbb8;

  --font-mono: "JetBrains Mono", ui-monospace, "Cascadia Code", "Fira Code",
    monospace;

  --transition-fast: 120ms ease;
  --transition-base: 200ms ease;
}

/* ── Dark mode tokens ── */
.dark {
  --bg: #222624;
  --bg-card: #2d312f;
  --bg-card-hover: #353a38;
  --bg-muted: #3a3f41;
  --bg-code: #0f1412;
  --bg-dark: #000000;

  --fg: #b2b9b5;
  --fg-muted: #8a938e;
  --fg-subtle: #5a6360;
  --fg-inverse: #222624;

  --accent: #3ba77c;
  --accent-hover: #4dbf90;
  --accent-fg: #222624;
  --accent-subtle: rgba(59, 167, 124, 0.12);

  --border: #2d312f;
  --border-strong: #3a3f41;
}

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

/* ── Base ── */
html {
  scroll-behavior: smooth;
  background: var(--bg);
  color-scheme: light;
}

html.dark {
  color-scheme: dark;
}

body {
  font-family: var(--font-mono);
  font-size: 14px;
  line-height: 1.7;
  background: var(--bg);
  color: var(--fg);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  transition: background var(--transition-base), color var(--transition-base);
}

a {
  color: var(--accent);
  text-decoration: none;
  transition: color var(--transition-fast);
}

a:hover {
  color: var(--accent-hover);
  text-decoration: underline;
}

/* ── Theme Toggle (inline in nav, next to GitHub) ── */
.theme-toggle {
  width: 2.25rem;
  height: 2.25rem;
  border: none;
  border-radius: 0;
  background: none;
  color: var(--fg-muted);
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all var(--transition-fast);
  position: relative;
}

.theme-toggle:hover {
  color: var(--accent);
}

.theme-toggle__sun,
.theme-toggle__moon {
  position: absolute;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: opacity var(--transition-base), transform var(--transition-base);
}

/* Light mode: show moon (to switch to dark) */
.theme-toggle__moon {
  opacity: 1;
  transform: rotate(0deg);
}
.theme-toggle__sun {
  opacity: 0;
  transform: rotate(90deg);
}

/* Dark mode: show sun (to switch to light) */
.dark .theme-toggle__sun {
  opacity: 1;
  transform: rotate(0deg);
}
.dark .theme-toggle__moon {
  opacity: 0;
  transform: rotate(-90deg);
}

/* ── Navigation ── */
.nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 50;
  background: var(--bg);
  border-bottom: 1px solid var(--border);
}

.nav__container {
  max-width: 1100px;
  margin: 0 auto;
  padding: 0 1.5rem;
  height: 3.5rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.nav__logo {
  display: flex;
  align-items: center;
  text-decoration: none;
}

.nav__logo:hover {
  text-decoration: none;
  opacity: 0.8;
}

.nav__logo-text {
  height: 1.9rem;
  width: auto;
}

/* Theme-aware nav logo */
.nav__logo-text--light {
  display: block;
}
.nav__logo-text--dark {
  display: none;
}
.dark .nav__logo-text--light {
  display: none;
}
.dark .nav__logo-text--dark {
  display: block;
}

.nav__actions {
  display: flex;
  align-items: center;
  gap: 0.25rem;
}

.nav__github {
  color: var(--fg-muted);
  display: flex;
  align-items: center;
  padding: 0.375rem;
  transition: color var(--transition-fast);
}

.nav__github:hover {
  color: var(--accent);
}

/* ── Hero ── */
.hero {
  padding: 5rem 1.5rem 3rem;
  display: flex;
  align-items: center;
  justify-content: center;
}

.hero__container {
  max-width: 1260px;
  margin: 0 auto;
  width: 100%;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 3rem;
}

.hero__logo {
  width: 100%;
  max-width: 180px;
  height: auto;
  margin-bottom: 0.75rem;
}

@media (min-width: 768px) {
  .hero__logo {
    max-width: 220px;
  }
}

.hero__content {
  text-align: center;
  display: flex;
  flex-direction: column;
  align-items: center;
  width: 100%;
  max-width: 750px;
  gap: 0.75rem;
}

.hero__visual {
  width: 100%;
  max-width: 750px;
}

/* Theme-aware hero logo */
.hero__logo--light {
  display: block;
}
.hero__logo--dark {
  display: none;
}
.dark .hero__logo--light {
  display: none;
}
.dark .hero__logo--dark {
  display: block;
}

.hero__tagline {
  font-size: 1.75rem;
  font-weight: 700;
  line-height: 1.3;
  margin-bottom: 1rem;
  color: var(--fg);
  letter-spacing: -0.02em;
}

@media (min-width: 768px) {
  .hero__tagline {
    font-size: 2.25rem;
  }
}

.hero__description {
  font-size: 0.875rem;
  color: var(--fg-muted);
  margin-bottom: 0;
  width: 100%;
  line-height: 1.8;
}

.hero__label {
  font-family: var(--font-mono);
  font-size: 0.8rem;
  color: var(--fg-subtle);
}

.hero__actions {
  display: flex;
  gap: 0.6rem;
  flex-wrap: wrap;
  justify-content: center;
}

.hero__or {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--fg-subtle);
  text-transform: lowercase;
}

.hero__install {
  display: inline-flex;
  align-items: center;
  gap: 0.75rem;
  background: var(--bg-code);
  border: 1px solid var(--border);
  border-radius: 0;
  padding: 0.75rem 1rem;
  width: fit-content;
  text-align: left;
}

.hero__command {
  font-family: var(--font-mono);
  font-size: 0.8125rem;
  color: var(--fg);
  background: none;
  border: none;
  white-space: nowrap;
  line-height: 1.5;
}

.hero__copy {
  background: var(--bg-card);
  border: 1px solid var(--border);
  color: var(--fg-muted);
  cursor: pointer;
  padding: 0.35rem 0.75rem;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  transition: all var(--transition-fast);
  font-family: var(--font-mono);
  font-size: 0.75rem;
  text-transform: lowercase;
}

.hero__copy:hover {
  color: var(--accent);
  border-color: var(--accent);
}

.hero__copy--primary {
  background: var(--accent);
  color: var(--accent-fg);
  border-color: var(--accent);
}

.hero__copy--primary:hover {
  background: var(--accent-hover);
  border-color: var(--accent-hover);
  color: var(--accent-fg);
}

.hero__cta {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  font-family: var(--font-mono);
  font-size: 0.85rem;
  padding: 0.45rem 0.9rem;
  border: 1px solid var(--border);
  background: var(--bg-card);
  color: var(--fg-muted);
  text-decoration: none;
  transition: all var(--transition-fast);
}

.hero__cta:hover {
  border-color: var(--accent);
  color: var(--accent);
  text-decoration: none;
}

.hero__cta--primary {
  background: var(--accent);
  color: var(--accent-fg);
  border-color: var(--accent);
}

.hero__cta--primary:hover {
  background: var(--accent-hover);
  border-color: var(--accent-hover);
  color: var(--accent-fg);
}

/* ── Install Tabs (terminal look) ── */
.hero__install-tabs {
  width: 100%;
  max-width: 740px;
  border: 1px solid var(--border);
  background: var(--bg-code);
}

.install-tabs {
  display: flex;
  gap: 0;
  background: var(--bg-muted);
  border-bottom: 1px solid var(--border);
}

.install-tab {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  padding: 0.5rem 1rem;
  background: none;
  border: none;
  border-right: 1px solid var(--border);
  color: var(--fg-subtle);
  cursor: pointer;
  transition: all var(--transition-fast);
  text-transform: lowercase;
}

.install-tab:last-child {
  border-right: none;
}

.install-tab:hover {
  color: var(--fg);
  background: rgba(59, 167, 124, 0.08);
}

.install-tab--active {
  color: var(--accent);
  background: var(--bg-code);
  box-shadow: inset 0 -2px 0 var(--accent);
}

.install-panel {
  display: none;
}

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

.install-panel__code {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  padding: 0.75rem 1rem;
  text-align: left;
  min-width: 0;
}

.install-panel__code .hero__command {
  flex: 1;
  min-width: 0;
}

.install-panel__code .hero__copy {
  flex-shrink: 0;
}

.install-panel__note {
  padding: 1rem 1.25rem;
  text-align: left;
}

.install-panel__note p {
  font-family: var(--font-mono);
  font-size: 0.8125rem;
  color: var(--fg-muted);
  line-height: 1.7;
  margin: 0;
}

.install-panel__note p + p {
  margin-top: 0.5rem;
}

.install-panel__note a {
  color: var(--accent);
  text-decoration: underline;
}

.install-panel__note a:hover {
  color: var(--accent-hover);
}

/* ── Buttons ── */
.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0.625rem 1.25rem;
  font-family: var(--font-mono);
  font-size: 0.8125rem;
  font-weight: 500;
  border-radius: 0;
  transition: all var(--transition-fast);
  cursor: pointer;
  border: 1px solid transparent;
  text-decoration: none;
}

.button:hover {
  text-decoration: none;
}

.button--primary {
  background: var(--accent);
  color: var(--accent-fg);
  border-color: var(--accent);
}

.button--primary:hover {
  background: var(--accent-hover);
  border-color: var(--accent-hover);
  color: var(--accent-fg);
}

.button--secondary {
  background: transparent;
  color: var(--fg);
  border: 1px solid var(--border);
}

.button--secondary:hover {
  border-color: var(--accent);
  color: var(--accent);
  background: var(--accent-subtle);
}

/* ── Terminal ── */
.terminal {
  background: #0f1412;
  border: 1px solid #2d312f;
  border-radius: 0;
  overflow: hidden;
  font-family: var(--font-mono);
  width: 100%;
}

.terminal__header {
  background: #1a1f1d;
  padding: 0.625rem 1rem;
  display: flex;
  gap: 0.5rem;
  align-items: center;
  border-bottom: 1px solid #2d312f;
}

.terminal__dot {
  width: 0.625rem;
  height: 0.625rem;
  border-radius: 50%;
}

.terminal__dot--red {
  background: #b94a48;
}
.terminal__dot--yellow {
  background: #c89b3c;
}
.terminal__dot--green {
  background: #3ba77c;
}

.terminal__body {
  padding: 1.25rem;
  color: #b2b9b5;
}

.terminal__line {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  margin-bottom: 0.375rem;
  font-size: 0.8125rem;
}

.terminal__line--output {
  color: #8a938e;
}

.terminal__prompt {
  color: #3ba77c;
  user-select: none;
}

.terminal__command {
  color: #f2f5f3;
}

.terminal__success {
  color: #3ba77c;
}

.terminal__cursor {
  color: #3ba77c;
  animation: blink 1s step-end infinite;
}

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

/* ── Sections ── */
.section {
  padding: 3.5rem 1.5rem;
}

.section--alt {
  background: var(--bg-card);
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
}

.section__container {
  max-width: 1100px;
  margin: 0 auto;
}

.section__title {
  font-size: 1.375rem;
  font-weight: 700;
  text-align: center;
  margin-bottom: 0.375rem;
  color: var(--fg);
  letter-spacing: -0.01em;
}

.section__subtitle {
  font-size: 0.875rem;
  color: var(--fg-muted);
  text-align: center;
  margin-bottom: 2rem;
}

/* ── Built with pi ── */
.built-with {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 0.35rem;
  padding: 1rem 0;
}

.built-with__logo {
  height: 36px;
  width: auto;
  display: none;
}

.built-with__logo--light {
  display: block;
  filter: invert(1) grayscale(1) brightness(0.2);
}

.dark .built-with__logo--light {
  display: none;
}

.dark .built-with__logo--dark {
  display: block;
}

.built-with__logo-link {
  display: inline-flex;
  align-items: center;
}

.built-with__text {
  font-family: var(--font-mono);
  font-size: 0.85rem;
  color: var(--fg-muted);
  text-transform: lowercase;
}

/* ── Info note ── */
.note {
  font-family: var(--font-mono);
  font-size: 0.85rem;
  color: var(--fg);
  line-height: 1.6;
  padding: 0.85rem 1rem;
  background: var(--accent-subtle);
  border-left: 3px solid var(--accent);
  text-align: left;
  margin-top: 1.25rem;
}

/* ── Architecture ── */
.architecture {
  display: grid;
  grid-template-columns: 1fr;
  gap: 3rem;
}

@media (min-width: 1024px) {
  .architecture {
    grid-template-columns: 1fr 1fr;
  }
}

.architecture__diagram {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0;
}

.architecture__layer {
  width: 100%;
}

.architecture__box {
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: 0;
  padding: 1.25rem;
  text-align: center;
  transition: border-color var(--transition-fast);
}

.section--alt .architecture__box {
  background: var(--bg-muted);
}

.architecture__box h3 {
  font-size: 0.875rem;
  font-weight: 600;
  margin-bottom: 0.25rem;
}

.architecture__box p {
  font-size: 0.75rem;
  color: var(--fg-muted);
}

.architecture__box--frontend {
  border-left: 3px solid #3ba77c;
}
.architecture__box--backend {
  border-left: 3px solid #3ba77c;
}
.architecture__box--runner {
  border-left: 3px solid #5a6360;
}
.architecture__box--agent {
  border-left: 3px solid #8a938e;
}

.architecture__arrow {
  color: var(--fg-subtle);
  font-size: 1.25rem;
  text-align: center;
  padding: 0.25rem 0;
  line-height: 1;
}

.architecture__details {
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

.feature-card {
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: 0;
  padding: 1.25rem;
  transition: border-color var(--transition-fast);
}

.section--alt .feature-card {
  background: var(--bg-muted);
}

.feature-card:hover {
  border-color: var(--accent);
}

.feature-card h3 {
  font-size: 0.875rem;
  font-weight: 600;
  margin-bottom: 0.375rem;
  color: var(--fg);
}

.feature-card p {
  font-size: 0.8125rem;
  color: var(--fg-muted);
  line-height: 1.7;
}

/* ── Features Grid ── */
.features {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1rem;
}

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

@media (min-width: 1024px) {
  .features {
    grid-template-columns: repeat(3, 1fr);
  }
}

.feature {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 0;
  padding: 1.5rem;
  transition: all var(--transition-fast);
}

.feature:hover {
  border-color: var(--accent);
}

.feature__icon {
  width: 2.5rem;
  height: 2.5rem;
  background: var(--accent-subtle);
  border: 1px solid var(--border);
  border-radius: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--accent);
  margin-bottom: 1rem;
}

.feature h3 {
  font-size: 0.875rem;
  font-weight: 600;
  margin-bottom: 0.375rem;
  color: var(--fg);
}

.feature p {
  font-size: 0.8125rem;
  color: var(--fg-muted);
  line-height: 1.7;
}

/* ── Acknowledgments ── */
.acknowledgments {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1rem;
  margin-bottom: 3rem;
}

@media (min-width: 768px) {
  .acknowledgments {
    grid-template-columns: repeat(2, 1fr);
  }
}

.acknowledgment {
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: 0;
  padding: 1.5rem;
  transition: border-color var(--transition-fast);
}

.section--alt .acknowledgment {
  background: var(--bg-muted);
}

.acknowledgment:hover {
  border-color: var(--accent);
}

.acknowledgment h3 {
  font-size: 0.9375rem;
  font-weight: 600;
  margin-bottom: 0.5rem;
  color: var(--fg);
}

.acknowledgment p {
  font-size: 0.8125rem;
  color: var(--fg-muted);
  line-height: 1.7;
  margin-bottom: 0.75rem;
}

.acknowledgment a {
  font-size: 0.75rem;
  color: var(--accent);
}

/* ── Technologies ── */
.tools {
  text-align: center;
}

.tools h3 {
  font-size: 0.875rem;
  font-weight: 600;
  margin-bottom: 1rem;
  color: var(--fg-muted);
  text-transform: lowercase;
}

.tools__grid {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 0.5rem;
}

.tool {
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: 0;
  padding: 0.375rem 0.75rem;
  font-size: 0.75rem;
  font-family: var(--font-mono);
  color: var(--fg-muted);
  transition: all var(--transition-fast);
  position: relative;
}

.tool[data-tooltip]:hover::after {
  content: attr(data-tooltip);
  position: absolute;
  bottom: calc(100% + 6px);
  left: 50%;
  transform: translateX(-50%);
  background: #0f1412;
  color: #f2f5f3;
  font-size: 0.7rem;
  padding: 0.3rem 0.45rem;
  border: 1px solid rgba(242, 245, 243, 0.2);
  white-space: nowrap;
  z-index: 5;
}

.tool[data-tooltip]:hover::before {
  content: "";
  position: absolute;
  bottom: 100%;
  left: 50%;
  transform: translateX(-50%);
  border-width: 6px;
  border-style: solid;
  border-color: #0f1412 transparent transparent transparent;
  z-index: 5;
}

.section--alt .tool {
  background: var(--bg-muted);
}

.tool:hover {
  border-color: var(--accent);
  color: var(--accent);
}

/* ── Documentation ── */
.docs {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1rem;
}

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

.doc-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 0;
  padding: 1.5rem;
  transition: all var(--transition-fast);
}

.doc-card:hover {
  border-color: var(--accent);
}

.doc-card h3 {
  font-size: 0.875rem;
  font-weight: 600;
  margin-bottom: 0.375rem;
  color: var(--fg);
}

.doc-card p {
  font-size: 0.8125rem;
  color: var(--fg-muted);
  line-height: 1.7;
  margin-bottom: 0.75rem;
}

.doc-card__link {
  display: inline-flex;
  align-items: center;
  gap: 0.375rem;
  font-size: 0.8125rem;
  font-weight: 500;
  color: var(--accent);
}

.doc-card__link:hover {
  text-decoration: none;
  color: var(--accent-hover);
}

.doc-card__link svg {
  transition: transform var(--transition-fast);
}

.doc-card:hover .doc-card__link svg {
  transform: translateX(3px);
}

/* ── Footer ── */
.footer {
  background: var(--bg-dark);
  color: var(--fg-inverse);
  padding: 3.25rem 1.5rem;
  border-top: 1px solid var(--border);
}

.footer__container {
  max-width: 1100px;
  margin: 0 auto;
  text-align: center;
}

.footer__brand {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  font-size: 1.125rem;
  font-weight: 600;
  margin-top: 0.75rem;
  margin-bottom: 0;
  color: #f2f5f3;
}

.footer__logo {
  width: 2rem;
  height: 2rem;
}

.footer__links {
  display: flex;
  justify-content: center;
  gap: 1.5rem;
  margin-bottom: 1.25rem;
}

.footer__links a {
  color: rgba(242, 245, 243, 0.6);
  font-size: 0.8125rem;
}

.footer__links a:hover {
  color: #3ba77c;
  text-decoration: none;
}

.footer__copyright {
  color: rgba(242, 245, 243, 0.35);
  font-size: 0.75rem;
}

/* ── Architecture Diagram ── */
.arch {
  display: flex;
  justify-content: center;
  margin: 1.5rem auto 0;
}

.arch__split {
  display: grid;
  grid-template-columns: 1.2fr 0.8fr;
  gap: 1.5rem;
  align-items: center;
  max-width: 1100px;
  width: 100%;
}

.arch__img {
  width: 100%;
  height: auto;
  border: 1px solid var(--border);
  background: var(--bg-card);
  padding: 0.75rem;
}

.arch__text {
  font-family: var(--font-mono);
  color: var(--fg-muted);
  font-size: 0.85rem;
  line-height: 1.6;
}

.arch__text h3 {
  font-size: 0.95rem;
  color: var(--fg);
  margin-bottom: 0.5rem;
  text-transform: lowercase;
}

.arch__text ul {
  margin: 0.75rem 0 0 1rem;
  padding: 0;
}

.arch__text li {
  margin-bottom: 0.35rem;
}

@media (max-width: 860px) {
  .arch__split {
    grid-template-columns: 1fr;
  }
}

/* ── Compact features ── */
.features--compact {
  display: grid;
  grid-template-columns: 1fr;
  gap: 0.75rem;
}

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

@media (min-width: 1024px) {
  .features--compact {
    grid-template-columns: repeat(3, 1fr);
  }
}

/* Prevent any horizontal overflow on mobile */
html,
body {
  overflow-x: hidden;
}

.section__container,
.nav__container,
.hero__container,
.footer__container {
  overflow: hidden;
}

/* ── Security Grid ── */
.security-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1rem;
}

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

@media (min-width: 1024px) {
  .security-grid {
    grid-template-columns: repeat(3, 1fr);
  }
}

/* ── Code Blocks ── */
.code-block {
  margin-top: 0.75rem;
  background: var(--bg-code);
  border: 1px solid var(--border);
  border-radius: 0;
  overflow: hidden;
  max-width: 100%;
}

.dark .code-block {
  background: #0f1412;
  border-color: #2d312f;
}

.code-block pre {
  margin: 0;
  padding: 0.75rem;
}

.code-block code {
  font-family: var(--font-mono);
  font-size: 0.6875rem;
  line-height: 1.6;
  color: var(--fg-muted);
  white-space: pre-wrap;
  word-break: break-all;
}

.dark .code-block code {
  color: #8a938e;
}

/* ── Tool Links ── */
.tool--link {
  display: inline-block;
  text-decoration: none;
  color: var(--fg-muted);
  transition: all var(--transition-fast);
  cursor: pointer;
}

.tool--link:hover {
  border-color: var(--accent);
  color: var(--accent);
  text-decoration: none;
}

/* ── Architecture Details (horizontal below diagram) ── */
.architecture__details {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1rem;
}

@media (min-width: 768px) {
  .architecture__details {
    grid-template-columns: repeat(3, 1fr);
  }
}

/* ── Scrollbar (matches Oqto app) ── */
* {
  scrollbar-width: thin;
  scrollbar-color: transparent transparent;
}

*:hover {
  scrollbar-color: var(--fg-subtle) transparent;
}

::selection {
  background: var(--accent);
  color: var(--accent-fg);
}