/* Cipi shared UI — paper system (Johnny/conn language) */

.container,
.section-inner {
  max-width: var(--max);
  margin: 0 auto;
  padding: 0 1.5rem;
}

.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
}

/* ── Nav ── */
nav#nav,
.nav {
  position: sticky;
  top: 0;
  z-index: 100;
  background: var(--nav-bg);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--line);
}

nav#nav .container,
.nav-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  max-width: var(--max);
  margin: 0 auto;
  padding: 0.85rem 1.5rem;
  min-height: var(--nav-height);
}

.nav-logo,
.nav-brand {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  text-decoration: none;
  color: var(--ink);
  font-family: var(--display);
  font-weight: 700;
  font-size: 1.3rem;
  letter-spacing: -0.04em;
  flex-shrink: 0;
}

.nav-logo svg.tux-logo {
  width: 1.45rem;
  height: 1.45rem;
  color: var(--ink);
}

.nav-logo .brand-mark .dim { fill: var(--ink); }
.nav-logo .brand-mark .sig { fill: var(--signal); }

.nav-links {
  display: flex;
  align-items: center;
  gap: 1.25rem;
  list-style: none;
  margin: 0;
  padding: 0;
}

.nav-links a {
  text-decoration: none;
  color: var(--ink-soft);
  font-size: 0.92rem;
  font-weight: 500;
  transition: color 0.15s;
}

.nav-links a:hover {
  color: var(--signal);
}

.nav-cta,
.btn-nav-sm {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  padding: 0.45rem 0.85rem;
  border: 1px solid var(--ink);
  background: var(--ink);
  color: var(--paper) !important;
  text-decoration: none;
  font-size: 0.85rem;
  font-weight: 600;
  transition: background 0.15s, border-color 0.15s;
}

.nav-cta:hover,
.btn-nav-sm:hover {
  background: var(--signal);
  border-color: var(--signal);
  color: var(--paper) !important;
}

.theme-toggle {
  background: none;
  border: 1px solid var(--line);
  width: 2.05rem;
  height: 2.05rem;
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  color: var(--ink-soft);
  flex-shrink: 0;
  transition: color 0.15s, border-color 0.15s;
}

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

.theme-toggle svg { width: 15px; height: 15px; }
.theme-toggle .icon-moon { display: block; }
.theme-toggle .icon-sun { display: none; }
[data-theme="dark"] .theme-toggle .icon-moon { display: none; }
[data-theme="dark"] .theme-toggle .icon-sun { display: block; }

.nav-toggle {
  display: none;
  background: none;
  border: 0;
  cursor: pointer;
  color: var(--ink);
  padding: 0.25rem;
}
.nav-toggle svg { width: 22px; height: 22px; }
.nav-toggle .icon-close { display: none; }
.nav-toggle.active .icon-open { display: none; }
.nav-toggle.active .icon-close { display: block; }

/* ── Buttons ── */
.btn,
.btn-primary,
.btn-secondary {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.45rem;
  padding: 0.8rem 1.25rem;
  font-family: var(--sans);
  font-size: 0.95rem;
  font-weight: 600;
  text-decoration: none;
  border: 1px solid transparent;
  cursor: pointer;
  transition: transform 0.15s, background 0.15s, color 0.15s, border-color 0.15s;
}

.btn:hover,
.btn-primary:hover,
.btn-secondary:hover {
  transform: translateY(-1px);
}

.btn-primary {
  background: var(--signal);
  color: #fff;
  border-color: var(--signal);
}

[data-theme="dark"] .btn-primary {
  color: #0c0d10;
}

.btn-primary svg {
  color: #fff;
  fill: currentColor;
}

[data-theme="dark"] .btn-primary svg {
  color: #0c0d10;
}

.btn-primary:hover {
  background: var(--signal-deep);
  border-color: var(--signal-deep);
  color: #fff;
}

[data-theme="dark"] .btn-primary:hover {
  color: #0c0d10;
}

[data-theme="dark"] .btn-primary:hover svg {
  color: #0c0d10;
}

.btn-secondary {
  background: transparent;
  color: var(--ink);
  border-color: var(--ink);
}

.btn-secondary:hover {
  background: var(--ink);
  color: var(--paper);
}

/* ── Hero ── */
.hero {
  position: relative;
  padding: 3.25rem 0 0;
}

.hero-copy {
  max-width: var(--max);
  margin: 0 auto;
  padding: 0 1.5rem 2.5rem;
}

.hero-brand {
  width: min(100%, 18rem);
  line-height: 0;
  margin-bottom: 1rem;
  animation: rise 0.7s ease both;
}

.hero-brand svg {
  display: block;
  width: 100%;
  height: auto;
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 0.45rem;
  font-family: var(--mono);
  font-size: 0.72rem;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--signal);
  margin-bottom: 1rem;
  animation: rise 0.7s ease both;
}

.hero-badge .dot {
  width: 6px;
  height: 6px;
  background: var(--signal);
  display: inline-block;
  animation: pulse 2.4s ease-in-out infinite;
}

.hero h1 {
  font-family: var(--display);
  font-weight: 700;
  font-size: clamp(1.5rem, 3.4vw, 2.1rem);
  letter-spacing: -0.03em;
  line-height: 1.2;
  margin: 0 0 0.75rem;
  color: var(--ink);
  animation: rise 0.7s 0.08s ease both;
}

.hero h1 em {
  font-style: normal;
  color: var(--signal);
}

.hero-copy > p,
.hero > .hero-copy p {
  color: var(--muted);
  font-size: 1.1rem;
  line-height: 1.5;
  max-width: 38rem;
  margin: 0;
  animation: rise 0.7s 0.14s ease both;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  margin-top: 1.5rem;
  animation: rise 0.7s 0.2s ease both;
}

.hero-visual {
  position: relative;
  width: 100%;
  border-top: 1px solid var(--ink);
  border-bottom: 1px solid var(--ink);
  background: var(--terminal);
  color: #d7dde6;
  animation: rise 0.8s 0.22s ease both;
  overflow: hidden;
}

.hero-visual::before {
  content: "";
  position: absolute;
  inset: 0;
  background: repeating-linear-gradient(
    0deg,
    transparent,
    transparent 3px,
    color-mix(in srgb, var(--signal) 7%, transparent) 3px,
    color-mix(in srgb, var(--signal) 7%, transparent) 6px
  );
  animation: scan 10s linear infinite;
  pointer-events: none;
  z-index: 0;
}

.hero-visual-inner {
  position: relative;
  z-index: 1;
  max-width: var(--max);
  margin: 0 auto;
  padding: 0 1.5rem;
}

.hero-visual-bar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 0.75rem;
  padding: 0.85rem 0;
  border-bottom: 1px solid rgba(255, 255, 255, 0.1);
  font-family: var(--mono);
  font-size: 0.75rem;
  color: #8b95a5;
}

.hero-visual-bar .bar-left {
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.hero-visual-bar i {
  flex: 0 0 8px;
  width: 8px;
  height: 8px;
  display: block;
  background: var(--phosphor);
  animation: pulse 2.4s ease-in-out infinite;
}

.hero-visual pre,
.hero-visual .install-line {
  margin: 0;
  padding: 1.25rem 0 1.6rem;
  font-family: var(--mono);
  font-size: clamp(0.78rem, 1.6vw, 0.92rem);
  line-height: 1.75;
  overflow-x: auto;
}

.hero-visual .t-accent { color: var(--phosphor); }
.hero-visual .t-ok { color: #3dbe7a; }
.hero-visual .t-dim { color: #7a8494; }

.hero-visual .copy-btn {
  background: transparent;
  border: 1px solid rgba(255, 255, 255, 0.18);
  color: #c5ccd6;
  font-family: var(--mono);
  font-size: 0.68rem;
  padding: 0.25rem 0.55rem;
  cursor: pointer;
}

.hero-visual .copy-btn:hover {
  border-color: var(--phosphor);
  color: #fff;
}

/* ── Sections ── */
section.band,
.band {
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
  background: var(--white);
}

.stack-section,
#forwhom,
.features-section,
.ai-section,
.api-section,
.whmcs-section,
.cli-section,
.cta-section,
.compat-section,
.sponsor-band {
  padding: 4.5rem 0;
  border-top: 1px solid var(--line);
}

.section-kicker,
.section-label,
.ai-label,
.cli-label,
.api-label,
.whmcs-label {
  font-family: var(--mono) !important;
  font-size: 0.75rem !important;
  font-weight: 500 !important;
  letter-spacing: 0.12em !important;
  text-transform: uppercase !important;
  color: var(--signal) !important;
  margin-bottom: 0.75rem !important;
  display: block;
  background: none !important;
  border: 0 !important;
  padding: 0 !important;
}

.section-title,
.ai-headline,
.cli-headline,
.api-headline,
.whmcs-headline {
  font-family: var(--display) !important;
  font-weight: 700 !important;
  font-size: clamp(1.85rem, 4vw, 2.55rem) !important;
  letter-spacing: -0.035em !important;
  line-height: 1.1 !important;
  margin-bottom: 0.85rem !important;
  color: var(--ink) !important;
}

.section-title em,
.ai-headline em,
.cli-headline em,
.api-headline em,
.whmcs-headline em {
  font-style: normal;
  color: var(--signal);
}

.section-desc,
.section-lead,
.ai-desc,
.cli-desc,
.api-desc,
.whmcs-desc {
  color: var(--muted) !important;
  max-width: 38rem;
  font-size: 1.08rem !important;
  line-height: 1.55 !important;
  margin-bottom: 2rem !important;
}

/* ── Coverage list (replaces cards) ── */
.coverage-list {
  display: grid;
  gap: 0;
  border-top: 1px solid var(--line);
  margin-top: 0.5rem;
}

.coverage-row {
  display: grid;
  gap: 0.35rem;
  padding: 1.15rem 0;
  border-bottom: 1px solid var(--line);
  align-items: baseline;
}

@media (min-width: 760px) {
  .coverage-row {
    grid-template-columns: 4.5rem minmax(10rem, 14rem) 1fr auto;
    gap: 1.25rem;
  }
}

.coverage-row .n {
  font-family: var(--mono);
  font-size: 0.78rem;
  color: var(--muted);
}

.coverage-row .name {
  font-weight: 600;
  color: var(--ink);
  font-size: 1rem;
}

.coverage-row .desc {
  color: var(--muted);
  font-size: 0.98rem;
  line-height: 1.5;
}

.coverage-row .tag {
  font-family: var(--mono);
  font-size: 0.72rem;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  color: var(--signal);
  white-space: nowrap;
}

/* Kill old card grids when converted */
.stack-grid,
.features-grid,
.forwhom-grid {
  display: grid;
  gap: 0;
  border-top: 1px solid var(--line);
}

.stack-item,
.feature-card,
.forwhom-card {
  display: grid;
  gap: 0.35rem;
  padding: 1.15rem 0 !important;
  border: 0 !important;
  border-bottom: 1px solid var(--line) !important;
  background: transparent !important;
  box-shadow: none !important;
  border-radius: 0 !important;
  transform: none !important;
}

.stack-item:hover,
.feature-card:hover,
.forwhom-card:hover {
  transform: none !important;
  box-shadow: none !important;
  background: transparent !important;
}

.stack-icon,
.forwhom-icon {
  display: none !important;
}

.stack-item h3,
.feature-card h3,
.forwhom-card h3 {
  font-family: var(--sans);
  font-size: 1rem !important;
  font-weight: 600 !important;
  margin: 0 !important;
  color: var(--ink);
}

.stack-item p,
.feature-card p,
.forwhom-card p {
  color: var(--muted) !important;
  font-size: 0.98rem !important;
  margin: 0 !important;
  line-height: 1.5 !important;
}

.feature-tag,
.forwhom-label {
  font-family: var(--mono) !important;
  font-size: 0.72rem !important;
  letter-spacing: 0.04em !important;
  text-transform: uppercase !important;
  color: var(--signal) !important;
  background: none !important;
  border: 0 !important;
  padding: 0 !important;
  margin: 0 0 0.15rem !important;
}

@media (min-width: 760px) {
  .stack-item,
  .feature-card,
  .forwhom-card {
    grid-template-columns: 1fr;
  }
}

/* Numbered stacks via counter when using coverage classes */
.stack-grid,
.features-grid,
.forwhom-grid {
  counter-reset: row;
}

.stack-item::before,
.feature-card::before,
.forwhom-card::before {
  counter-increment: row;
  content: counter(row, decimal-leading-zero);
  font-family: var(--mono);
  font-size: 0.78rem;
  color: var(--muted);
  display: block;
  margin-bottom: 0.15rem;
}

/* ── Demo panels (AI / CLI / API) ── */
.ai-section {
  background: var(--terminal) !important;
  color: #d7dde6;
  border-top: 1px solid var(--ink);
  border-bottom: 1px solid var(--ink);
}

.ai-section .section-kicker,
.ai-section .ai-label {
  color: var(--phosphor) !important;
}

.ai-section .ai-headline,
.ai-section h2 {
  color: #fff !important;
}

.ai-section .ai-desc,
.ai-section p {
  color: #9aa3b2 !important;
}

.ai-section::before {
  display: none !important;
}

.ai-chat,
.ai-mcp-box,
.cli-terminal,
.api-card,
.whmcs-card,
.hero-terminal {
  border-radius: 0 !important;
  box-shadow: none !important;
  border: 1px solid rgba(255, 255, 255, 0.12) !important;
  background: #0e1116 !important;
}

.cli-section,
.api-section,
.whmcs-section {
  background: var(--paper);
}

.cli-terminal-topbar,
.terminal-topbar,
.ai-chat-header {
  border-radius: 0 !important;
  background: transparent !important;
  border-bottom: 1px solid rgba(255, 255, 255, 0.08) !important;
}

.terminal-dot {
  border-radius: 0 !important;
  width: 8px !important;
  height: 8px !important;
}

/* ── Sponsor / CTA bands ── */
.docs-cta-banner {
  display: grid;
  gap: 1.5rem;
  padding: 2rem 0;
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
  background: transparent !important;
  border-radius: 0 !important;
  box-shadow: none !important;
}

@media (min-width: 800px) {
  .docs-cta-banner {
    grid-template-columns: 1fr auto;
    align-items: center;
  }
}

.docs-cta-label {
  font-family: var(--mono);
  font-size: 0.72rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--signal);
}

.docs-cta-title {
  font-family: var(--display);
  font-weight: 700;
  font-size: clamp(1.4rem, 3vw, 1.9rem);
  letter-spacing: -0.03em;
  margin: 0.4rem 0 0.55rem;
  color: var(--ink);
}

.docs-cta-desc {
  color: var(--muted);
  max-width: 36rem;
  margin: 0;
}

.docs-cta-right {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
}

.cta-section {
  background: var(--surface) !important;
  text-align: center;
}

.cta-section .section-desc {
  margin-left: auto;
  margin-right: auto;
}

.cta-install {
  display: inline-flex;
  align-items: center;
  gap: 1rem;
  background: var(--terminal);
  color: #d7dde6;
  border: 1px solid #2a3040;
  padding: 0.75rem 1rem;
  font-family: var(--mono);
  font-size: 0.85rem;
  max-width: 100%;
}

.cta-install .prompt { color: var(--phosphor); }
.cta-copy-btn {
  background: transparent;
  border: 1px solid rgba(255, 255, 255, 0.18);
  color: #c5ccd6;
  font-family: var(--mono);
  font-size: 0.68rem;
  padding: 0.25rem 0.55rem;
  cursor: pointer;
  white-space: nowrap;
}

.cta-copy-btn:hover {
  border-color: var(--phosphor);
  color: #fff;
}

.hero-terminal {
  text-align: left;
  margin-left: auto !important;
  margin-right: auto !important;
}

/* ── Footer ── */
footer {
  border-top: 1px solid var(--line);
  padding: 2rem 0 2.5rem;
  color: var(--muted);
  font-size: 0.92rem;
}

.footer-content {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 1rem;
  flex-wrap: wrap;
}

.footer-links {
  display: flex;
  gap: 1.25rem;
  list-style: none;
  margin: 0;
  padding: 0;
}

footer a {
  color: var(--ink-soft);
  text-decoration: none;
  font-weight: 500;
}

footer a:hover {
  color: var(--signal);
}

/* ── Mobile menu ── */
.mobile-menu {
  display: none;
  position: fixed;
  inset: var(--nav-height) 0 0 0;
  background: var(--surface);
  border-top: 1px solid var(--line);
  z-index: 99;
  padding: 1rem 1.5rem 2rem;
  overflow-y: auto;
}

.mobile-menu.open { display: block; }

.mobile-menu ul {
  list-style: none;
  margin: 0;
  padding: 0;
}

.mobile-menu li a {
  display: block;
  padding: 0.85rem 0;
  border-bottom: 1px solid var(--line);
  text-decoration: none;
  color: var(--ink);
  font-weight: 500;
}

.mobile-menu .btn-nav-mobile {
  display: block;
  margin-top: 1.25rem;
  text-align: center;
  padding: 0.85rem;
  background: var(--ink);
  color: var(--paper);
  text-decoration: none;
  font-weight: 600;
}

@media (max-width: 960px) {
  .nav-links { display: none; }
  .nav-toggle { display: inline-flex; }
}

/* ── Motion ── */
.fade-in {
  opacity: 0;
  transform: translateY(14px);
  transition: opacity 0.55s ease, transform 0.55s ease;
}

.fade-in.visible {
  opacity: 1;
  transform: none;
}