/**
 * Z-TECH — Linear / Vercel / studio tier
 * Precision dark UI, beam borders, spotlight, mono labels
 */

:root {
  --linear-bg: #09090b;
  --linear-surface: #111113;
  --linear-border: rgba(255, 255, 255, 0.09);
  --linear-border-hover: rgba(255, 255, 255, 0.16);
  --linear-text: #ededed;
  --linear-muted: #8b8b93;
  --linear-accent: #f43f5e;
  --linear-accent-soft: rgba(244, 63, 94, 0.12);
  --linear-mono: "IBM Plex Mono", ui-monospace, monospace;
  --linear-sans: "Inter", "Plus Jakarta Sans", system-ui, sans-serif;
  --linear-display: "Inter", system-ui, sans-serif;
  --linear-ease: cubic-bezier(0.16, 1, 0.3, 1);
}

body.linear-tier {
  font-family: var(--linear-sans);
  color: var(--linear-muted);
  background: var(--linear-bg) !important;
  background-image: none !important;
}

body.linear-tier .font-display {
  font-family: var(--linear-display);
  letter-spacing: -0.045em;
  font-weight: 600;
}

/* ── Spotlight & mesh ── */
#linear-spotlight {
  position: fixed;
  inset: 0;
  z-index: 2;
  pointer-events: none;
  opacity: 0;
  transition: opacity 0.5s ease;
  background: radial-gradient(
    720px circle at var(--spot-x, 50%) var(--spot-y, 30%),
    rgba(255, 255, 255, 0.07),
    rgba(244, 63, 94, 0.04) 28%,
    transparent 55%
  );
}

body.linear-tier #linear-spotlight {
  opacity: 1;
}

.linear-mesh {
  position: fixed;
  inset: 0;
  z-index: 0;
  pointer-events: none;
  background:
    radial-gradient(ellipse 80% 50% at 50% -20%, rgba(99, 102, 241, 0.09), transparent 55%),
    radial-gradient(ellipse 50% 40% at 100% 0%, rgba(244, 63, 94, 0.06), transparent 50%),
    radial-gradient(ellipse 40% 30% at 0% 80%, rgba(56, 189, 248, 0.04), transparent 45%);
}

body.linear-tier .aurora,
body.linear-tier .ambient-orbs {
  display: none !important;
}

body.linear-tier .grid-bg {
  background-image: radial-gradient(rgba(255, 255, 255, 0.14) 1px, transparent 1px);
  background-size: 24px 24px;
  mask-image: radial-gradient(ellipse 90% 70% at 50% 0%, black, transparent 72%);
  opacity: 0.35;
}

body.linear-tier .noise-overlay {
  opacity: 0.015;
}

body.linear-tier .scroll-progress {
  height: 1px;
  background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.5), transparent);
  box-shadow: none;
}

/* ── Header ── */
body.linear-tier .glass {
  background: rgba(9, 9, 11, 0.72);
  backdrop-filter: blur(20px) saturate(1.4);
  -webkit-backdrop-filter: blur(20px) saturate(1.4);
  border-bottom: 1px solid var(--linear-border);
}

body.linear-tier #site-header a[href="#"] > span:first-child {
  border-radius: 8px;
  background: var(--linear-text);
  color: var(--linear-bg);
  box-shadow: none;
  font-family: var(--linear-display);
  font-weight: 700;
  font-size: 0.75rem;
}

body.linear-tier #site-header nav a {
  color: var(--linear-muted);
  font-size: 0.8125rem;
  font-weight: 500;
}

body.linear-tier #site-header nav a:hover {
  color: var(--linear-text);
}

body.linear-tier .nav-link::after {
  display: none;
}

body.linear-tier .btn-primary {
  background: var(--linear-text);
  color: var(--linear-bg);
  border-radius: 8px;
  font-weight: 500;
  box-shadow: 0 0 0 1px rgba(255, 255, 255, 0.08), 0 1px 2px rgba(0, 0, 0, 0.4);
}

body.linear-tier .btn-primary:hover {
  background: #fff;
  filter: none;
  transform: translateY(-1px);
  box-shadow: 0 0 0 1px rgba(255, 255, 255, 0.12), 0 8px 24px rgba(0, 0, 0, 0.35);
}

body.linear-tier .btn-ghost {
  border-radius: 8px;
  border-color: var(--linear-border);
  color: var(--linear-muted);
  background: transparent;
}

body.linear-tier .btn-ghost:hover {
  border-color: var(--linear-border-hover);
  background: rgba(255, 255, 255, 0.04);
  color: var(--linear-text);
}

/* ── Hero ── */
body.linear-tier .hero-section {
  min-height: min(92dvh, 920px);
}

body.linear-tier .hero-badge span:first-child {
  font-family: var(--linear-mono);
  font-size: 0.6875rem;
  font-weight: 500;
  letter-spacing: 0.02em;
  text-transform: none;
  color: var(--linear-muted);
  border-color: var(--linear-border);
  background: rgba(255, 255, 255, 0.03);
  border-radius: 6px;
  animation: none;
}

body.linear-tier .hero-badge .pulse-red {
  background: var(--linear-accent);
}

body.linear-tier .hero-fade-tag {
  font-family: var(--linear-mono);
  font-size: 0.6875rem;
  color: #52525b;
  animation: none;
}

body.linear-tier .hero-title-line {
  color: var(--linear-text);
  font-weight: 600;
  letter-spacing: -0.05em;
}

body.linear-tier .hero-title-line--accent {
  background: linear-gradient(180deg, #fff 0%, #a1a1aa 100%);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
  animation: none;
}

body.linear-tier .hero-shimmer-line {
  display: none;
}

body.linear-tier .hero-desc {
  border: none;
  padding: 0;
  color: var(--linear-muted);
  font-size: 1.0625rem;
  line-height: 1.65;
  animation: none;
}

body.linear-tier .hero-highlight {
  color: var(--linear-text);
  background: none;
  font-weight: 500;
  animation: none;
}

body.linear-tier .showcase-orbit {
  display: none;
}

body.linear-tier .showcase-float {
  font-family: var(--linear-mono);
  font-size: 0.625rem;
  border-color: var(--linear-border);
  background: rgba(17, 17, 19, 0.9);
  animation: none;
  box-shadow: 0 8px 32px rgba(0, 0, 0, 0.5);
}

/* Beam frame */
.linear-beam {
  position: relative;
  padding: 1px;
  border-radius: 18px;
  background: conic-gradient(
    from var(--beam-angle, 0deg),
    transparent 0deg,
    rgba(255, 255, 255, 0.35) 60deg,
    rgba(244, 63, 94, 0.55) 120deg,
    rgba(129, 140, 248, 0.35) 200deg,
    transparent 280deg
  );
  box-shadow:
    0 0 0 1px rgba(255, 255, 255, 0.04),
    0 40px 80px -32px rgba(0, 0, 0, 0.85);
}

.linear-beam__inner {
  border-radius: 17px;
  overflow: hidden;
  background: #0c0c0e;
}

body.linear-tier .browser-frame {
  border: none;
  border-radius: 0;
  background: transparent;
  box-shadow: none;
  transform: rotateX(var(--rx, 0deg)) rotateY(var(--ry, 0deg));
}

body.linear-tier .browser-frame__chrome {
  background: rgba(255, 255, 255, 0.02);
  border-bottom: 1px solid var(--linear-border);
}

body.linear-tier .browser-frame__url {
  font-family: var(--linear-mono);
  font-size: 0.625rem;
  color: #52525b;
}

body.linear-tier #hero-stats {
  background: rgba(255, 255, 255, 0.02);
  border: 1px solid var(--linear-border);
  border-radius: 12px;
  gap: 0;
}

body.linear-tier .stat-cell {
  background: transparent;
  padding: 1.25rem 1.5rem;
}

body.linear-tier .stat-cell + .stat-cell {
  border-left: 1px solid var(--linear-border);
}

body.linear-tier .stat-number {
  font-family: var(--linear-display);
  font-weight: 600;
  letter-spacing: -0.04em;
  color: var(--linear-text);
  text-shadow: none;
}

body.linear-tier .stat-label-live {
  font-family: var(--linear-mono);
  font-size: 0.625rem;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: #52525b;
}

/* ── Pipeline strip (Linear-style) ── */
.linear-pipeline {
  border-y: 1px solid var(--linear-border);
  background: rgba(255, 255, 255, 0.015);
  overflow: hidden;
}

.linear-pipeline__inner {
  display: flex;
  align-items: center;
  gap: 0;
  overflow: hidden;
  mask-image: linear-gradient(90deg, transparent, black 8%, black 92%, transparent);
}

.linear-pipeline__track {
  display: flex;
  align-items: center;
  gap: 2.5rem;
  padding: 0.85rem 0;
  white-space: nowrap;
  animation: linear-marquee 40s linear infinite;
  font-family: var(--linear-mono);
  font-size: 0.6875rem;
  color: #52525b;
}

.linear-pipeline__track span {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
}

.linear-pipeline__track span::before {
  content: "";
  width: 4px;
  height: 4px;
  border-radius: 50%;
  background: var(--linear-border-hover);
}

.linear-pipeline__track .is-hot {
  color: var(--linear-muted);
}

@keyframes linear-marquee {
  to { transform: translateX(-50%); }
}

/* ── Cards & sections ── */
body.linear-tier .glass-card {
  background: rgba(255, 255, 255, 0.02);
  border: 1px solid var(--linear-border);
  border-radius: 12px;
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.04);
  transition: border-color 0.25s var(--linear-ease), background 0.25s var(--linear-ease);
}

body.linear-tier .glass-card:hover {
  border-color: var(--linear-border-hover);
  background: rgba(255, 255, 255, 0.035);
  transform: translateY(-2px);
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.06), 0 20px 40px -24px rgba(0, 0, 0, 0.5);
}

body.linear-tier .glass-card.fx-faq:hover {
  transform: none;
}

body.linear-tier .glow-border::before {
  display: none;
}

body.linear-tier .fx-label {
  font-family: var(--linear-mono);
  font-size: 0.625rem;
  font-weight: 500;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--linear-muted);
  border: none;
  background: none;
  padding: 0;
  border-radius: 0;
}

body.linear-tier .fx-label::before {
  display: none;
}

body.linear-tier .fx-title {
  color: var(--linear-text);
  font-weight: 600;
  letter-spacing: -0.04em;
}

body.linear-tier .section-glow-title::after {
  display: none;
}

body.linear-tier .fx-section {
  padding-top: 6rem;
  padding-bottom: 6rem;
}

body.linear-tier section {
  border-color: var(--linear-border) !important;
}

body.linear-tier .case-chip {
  font-family: var(--linear-mono);
  font-size: 0.6875rem;
  border-radius: 6px;
  border-color: var(--linear-border);
  background: rgba(255, 255, 255, 0.02);
}

body.linear-tier .case-preview-band {
  background: linear-gradient(180deg, rgba(255, 255, 255, 0.03) 0%, transparent 100%);
}

body.linear-tier .case-live-pill {
  font-family: var(--linear-mono);
  border-color: rgba(74, 222, 128, 0.25);
}

body.linear-tier .pricing-featured,
body.linear-tier .bento-card--featured {
  background: rgba(255, 255, 255, 0.03) !important;
  border-color: var(--linear-border-hover) !important;
}

body.linear-tier .pricing-shimmer::before {
  display: none;
}

body.linear-tier .pricing-flagship-badge {
  font-family: var(--linear-mono);
  background: var(--linear-text);
  color: var(--linear-bg);
}

body.linear-tier .fx-faq summary {
  color: var(--linear-text);
  font-weight: 500;
}

body.linear-tier .marquee-section {
  display: none;
}

body.linear-tier .contact-form-fields input {
  border-radius: 8px !important;
  border-color: var(--linear-border) !important;
  background: rgba(0, 0, 0, 0.4) !important;
}

body.linear-tier .contact-form-fields input:focus {
  border-color: var(--linear-border-hover) !important;
  box-shadow: 0 0 0 3px rgba(255, 255, 255, 0.06) !important;
}

body.linear-tier footer {
  border-color: var(--linear-border);
  color: #52525b;
}

/* Linear card top shine */
body.linear-tier .linear-surface {
  position: relative;
}

body.linear-tier .linear-surface::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 1px;
  background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.2), transparent);
  pointer-events: none;
}

@media (prefers-reduced-motion: reduce) {
  .linear-pipeline__track {
    animation: none;
  }

  #linear-spotlight {
    display: none;
  }
}

@media (max-width: 1023px) {
  body.linear-tier .hero-showcase {
    order: -1;
  }
}