/* =============================================
   LAYOUT — Nav, Sections, Footer, Responsive
   ============================================= */

/* ----- Navigation ----- */
.site-nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  padding: 1rem 2rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1.25rem;
  background: var(--nav-bg);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid transparent;
  transition: border-color var(--transition-base), background-color var(--transition-base);
}

.site-nav.scrolled {
  border-bottom-color: var(--color-border);
}

.nav-logo {
  font-family: var(--font-mono);
  font-weight: 700;
  font-size: 1rem;
  color: var(--color-accent);
}

.nav-links {
  display: flex;
  gap: 2rem;
  list-style: none;
}

.nav-actions {
  display: flex;
  align-items: center;
  gap: 1rem;
}

.nav-links a {
  font-size: 0.85rem;
  font-weight: 500;
  color: var(--color-text-muted);
  transition: color var(--transition-base);
  letter-spacing: 0.02em;
}

.nav-links a:hover {
  color: var(--color-accent);
  opacity: 1;
}

.theme-toggle {
  position: relative;
  display: inline-flex;
  align-items: center;
  width: 96px;
  height: 40px;
  padding: 0;
  border: 1px solid var(--color-border);
  border-radius: 999px;
  background: var(--color-bg-card);
  color: var(--color-text-muted);
  cursor: pointer;
  overflow: hidden;
  transition: border-color var(--transition-base), background-color var(--transition-base), box-shadow var(--transition-base);
}

.theme-toggle:hover {
  border-color: var(--color-accent);
  box-shadow: var(--shadow-accent-soft);
}

.theme-toggle-option {
  position: relative;
  z-index: 1;
  flex: 1;
  text-align: center;
  font-family: var(--font-mono);
  font-size: 0.68rem;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  transition: color var(--transition-base);
}

.theme-toggle-thumb {
  position: absolute;
  top: 4px;
  left: 4px;
  width: 42px;
  height: 30px;
  border-radius: 999px;
  background:
    linear-gradient(135deg, var(--color-accent), var(--color-accent-hover));
  box-shadow: 0 8px 18px rgba(0, 232, 143, 0.22);
  transition: transform 0.45s cubic-bezier(0.22, 1, 0.36, 1), box-shadow var(--transition-base);
}

html[data-theme='dark'] .theme-toggle-option-dark,
html:not([data-theme='light']) .theme-toggle-option-dark {
  color: var(--color-bg);
}

html[data-theme='light'] .theme-toggle-option-light {
  color: var(--color-bg-card);
}

html[data-theme='light'] .theme-toggle-thumb {
  transform: translateX(46px);
  box-shadow: 0 8px 18px rgba(14, 143, 97, 0.22);
}


/* ----- Shared Section Styles ----- */
.section {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 6rem 2rem;
}

.section-label {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  font-weight: 500;
  color: var(--color-accent);
  text-transform: uppercase;
  letter-spacing: 0.15em;
  margin-bottom: 1rem;
}

.section-label::before {
  content: '// ';
  opacity: 0.5;
}

.section-title {
  font-size: clamp(1.8rem, 4vw, 2.5rem);
  font-weight: 700;
  line-height: 1.2;
  margin-bottom: 1.5rem;
}

.section-text {
  color: var(--color-text-muted);
  font-size: 1.05rem;
  max-width: 640px;
}


/* ----- Main Content Visibility ----- */
#main-content {
  opacity: 0;
  transition: opacity 1s ease 0.3s;
}

#main-content.visible {
  opacity: 1;
}


/* ----- Scroll Reveal ----- */
.reveal {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity 0.7s ease, transform 0.7s ease;
}

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


/* ----- Footer ----- */
.site-footer {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 2rem;
  display: flex;
  justify-content: space-between;
  align-items: center;
  border-top: 1px solid var(--color-border);
  font-size: 0.8rem;
  color: var(--color-text-muted);
}

.footer-copy {
  font-family: var(--font-mono);
}

.footer-easter {
  cursor: help;
  transition: color var(--transition-base);
}

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


/* ----- Cookie Consent ----- */
.cookie-banner {
  position: fixed;
  right: 1.25rem;
  bottom: 1.25rem;
  z-index: 1300;
  width: min(28rem, calc(100vw - 2rem));
  animation: cookie-banner-enter 0.55s cubic-bezier(0.22, 1, 0.36, 1);
}

.cookie-banner[hidden] {
  display: none;
}

.cookie-banner__inner {
  padding: 1.2rem;
  border: 1px solid var(--color-border);
  border-radius: 18px;
  background: color-mix(in srgb, var(--color-bg-card) 92%, transparent);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  box-shadow: var(--shadow-elevated);
  transition:
    border-color var(--transition-base),
    box-shadow var(--transition-base),
    transform var(--transition-base);
}

.cookie-banner:hover .cookie-banner__inner {
  border-color: color-mix(in srgb, var(--color-accent) 22%, var(--color-border));
  box-shadow:
    var(--shadow-elevated),
    0 0 0 1px color-mix(in srgb, var(--color-accent) 12%, transparent);
  transform: translateY(-1px);
}

.cookie-banner__eyebrow {
  margin-bottom: 0.55rem;
  color: var(--color-accent);
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
}

.cookie-banner__title {
  margin-bottom: 0.6rem;
  font-size: 1.05rem;
  line-height: 1.3;
}

.cookie-banner__text {
  color: var(--color-text-muted);
  font-size: 0.95rem;
  line-height: 1.6;
}

.cookie-banner__actions {
  display: inline-flex;
  gap: 0.75rem;
  flex-wrap: wrap;
  margin-top: 1rem;
  justify-content: center;
  transition: opacity 0.2s ease, transform 0.2s ease;
}

.cookie-banner__actions[hidden] {
  display: none;
}

.cookie-banner__button {
  min-width: 7.5rem;
  transition:
    transform 0.22s ease,
    box-shadow 0.22s ease,
    border-color 0.22s ease,
    background-color 0.22s ease;
}

.cookie-banner__button:hover {
  transform: translateY(-2px);
}

.cookie-banner__button.btn-primary:hover {
  box-shadow: 0 12px 24px rgba(0, 232, 143, 0.18);
}

.cookie-banner__button.btn-ghost:hover {
  border-color: var(--color-accent);
}

.cookie-banner.is-accepting .cookie-banner__inner {
  border-color: color-mix(in srgb, var(--color-accent) 36%, var(--color-border));
  box-shadow:
    var(--shadow-elevated),
    0 0 0 1px color-mix(in srgb, var(--color-accent) 15%, transparent),
    0 0 34px rgba(0, 232, 143, 0.16);
}

.cookie-banner.is-rejecting .cookie-banner__inner {
  border-color: color-mix(in srgb, var(--color-error) 28%, var(--color-border));
  box-shadow:
    var(--shadow-elevated),
    0 0 0 1px color-mix(in srgb, var(--color-error) 12%, transparent),
    0 0 30px rgba(255, 107, 107, 0.1);
}

.cookie-banner.is-dismissing {
  pointer-events: none;
  animation: cookie-banner-exit 0.62s cubic-bezier(0.22, 1, 0.36, 1) forwards;
}

.cookie-manage-button {
  position: fixed;
  left: 1rem;
  bottom: 1rem;
  z-index: 1250;
  padding: 0.45rem 0.8rem;
  border: 1px solid var(--color-border);
  border-radius: 999px;
  background: color-mix(in srgb, var(--color-bg-raised) 88%, transparent);
  color: var(--color-text-muted);
  font-family: var(--font-mono);
  font-size: 0.68rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  cursor: pointer;
  transition:
    border-color var(--transition-base),
    color var(--transition-base),
    background-color var(--transition-base);
}

.cookie-manage-button:hover {
  color: var(--color-accent);
  border-color: var(--color-accent);
}

@keyframes cookie-banner-enter {
  from {
    opacity: 0;
    transform: translateY(18px);
  }

  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@keyframes cookie-banner-exit {
  from {
    opacity: 1;
    transform: translateY(0) scale(1);
  }

  35% {
    opacity: 1;
    transform: translateY(-2px) scale(0.99);
  }

  to {
    opacity: 0;
    transform: translateY(28px) scale(0.965);
  }
}



/* =============================================
   RESPONSIVE BREAKPOINTS
   ============================================= */

/* ----- Tablet (max 768px) ----- */
@media (max-width: 768px) {
  .site-nav {
    align-items: flex-start;
  }

  .nav-actions {
    flex-direction: column;
    align-items: flex-end;
    gap: 0.75rem;
  }

  .section {
    padding: 4rem 1.25rem;
  }

  .nav-links {
    gap: 1rem;
    flex-wrap: wrap;
    justify-content: flex-end;
  }

  .nav-links a {
    font-size: 0.78rem;
  }

  /* About cards: 1 column */
  .about-grid {
    grid-template-columns: 1fr;
  }

  /* Workflow: 2 columns */
  .workflow-steps {
    grid-template-columns: 1fr 1fr;
  }

  /* Terminal smaller text */
  .terminal-body {
    font-size: 0.72rem;
    min-height: 280px;
  }

  /* Hero CTA stacked */
  .hero-cta-group {
    flex-direction: column;
  }

  .hero-copy {
    max-width: 100%;
  }

  .hero-pipeline-shell {
    max-width: 100%;
  }

  .btn {
    justify-content: center;
  }

  .cookie-banner {
    right: 1rem;
    left: 1rem;
    width: auto;
    bottom: 1rem;
  }

  .cookie-manage-button {
    left: 1rem;
    bottom: calc(1rem + 11.5rem);
  }
}

/* ----- Mobile (max 480px) ----- */
@media (max-width: 480px) {
  .site-nav {
    padding: 0.9rem 1rem;
  }

  .nav-links {
    gap: 0.8rem;
    max-width: 280px;
  }

  .hero-pipeline-status {
    flex-direction: column;
    align-items: center;
    gap: 0.35rem;
    bottom: 12px;
  }

  .hero-pipeline-scene {
    border-radius: 22px;
  }

  .workflow-steps {
    grid-template-columns: 1fr;
  }

  .site-footer {
    flex-direction: column;
    gap: 0.5rem;
    text-align: center;
  }

  .cookie-banner__actions {
    flex-direction: column;
  }

  .cookie-banner__button {
    width: 100%;
  }

  .cookie-manage-button {
    bottom: calc(1rem + 13.5rem);
  }
}