/* OS landing — C:\Deb (tokens from v0 globals.css, scoped to .os-landing) */

body:has(.os-landing) .main {
  min-height: 0;
}

/* ── Design tokens ─────────────────────────────────────────── */

.os-landing {
  /* Surfaces & text (v0: #EFF6FB / #08226A / #42687C) */
  --os-bg: #ffffff;
  --os-text: #08226a;
  --os-text-muted: #42687c;
  --os-card: #ffffff;
  --os-surface-muted: #e4edf3;
  --os-primary: #08226a;
  --os-primary-fg: #ffffff;
  --os-border: rgba(8, 34, 106, 0.125);

  /* Layout (v0: max-w-5xl = 64rem, px-6 lg:px-8) */
  --os-max-width: 64rem;
  --os-max-width-narrow: 42rem;
  --os-max-width-diagram: 56rem;
  --os-pad-x: clamp(1.5rem, 4vw, 2rem);
  --os-section-y: clamp(2.5rem, 5vw, 3.5rem);
  --os-section-y-lg: clamp(3rem, 6vw, 5rem);
  --os-section-y-xl: clamp(4rem, 8vw, 6rem);

  /* Typography (system fonts — no Geist) */
  --os-font: var(--font-main);
  --os-font-mono: var(--font-mono);
  --os-tracking-tight: -0.025em;

  /* Radius (v0 --radius: 0rem; buttons keep subtle site radius) */
  --os-radius: 0;
  --os-radius-card: 5px;
  --os-radius-button: var(--radius-md);

  /* SVG / concept diagram */
  --os-svg-color: var(--os-primary);

  /* Win98 chrome (source win98-window.tsx) */
  --win98-chrome: #c0c0c0;
  --win98-bevel-light: #dfdfdf;
  --win98-bevel-dark: #404040;
  --win98-inset-dark: #808080;
  --win98-titlebar-start: #000080;
  --win98-titlebar-end: #1084d0;
  --win98-title-text: #ffffff;
  --win98-inset-bg: #ffffff;
  --win98-terminal-bg: #000000;
  --win98-terminal-text: #c0c0c0;
  --win98-terminal-user: #4ce64c;
  --win98-terminal-path: #5c5cff;

  display: flex;
  flex-direction: column;
  width: 100%;
  min-width: 0;
  background: var(--os-bg);
  color: var(--os-text);
  font-family: var(--os-font);
  overflow-x: clip;
}

/* ── Layout ────────────────────────────────────────────────── */

.os-landing .os-landing__section {
  width: 100%;
}

.os-landing .os-landing__container {
  width: 100%;
  max-width: var(--os-max-width);
  margin-inline: auto;
  padding-inline: var(--os-pad-x);
}

/* ── Buttons (v0 Button: bg-primary, h-10, text-sm) ───────── */

.os-landing .os-button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  min-height: 2.5rem;
  padding: 0 1.25rem;
  border: none;
  border-radius: var(--os-radius-button);
  background: var(--os-primary);
  color: var(--os-primary-fg);
  font-family: inherit;
  font-size: var(--text-sm);
  font-weight: var(--font-weight-medium);
  line-height: 1;
  text-decoration: none;
  white-space: nowrap;
  cursor: pointer;
  transition:
    background-color var(--transition-fast),
    color var(--transition-fast);
}

.os-landing .os-button:hover {
  background: color-mix(in srgb, var(--os-primary) 88%, #000);
  color: var(--os-primary-fg);
  text-decoration: none;
}

.os-landing .os-button:focus-visible {
  outline: 2px solid var(--os-primary);
  outline-offset: 2px;
}

.os-landing .os-button--inverted {
  background: var(--os-primary-fg);
  color: var(--os-primary);
}

.os-landing .os-button--inverted:hover {
  background: color-mix(
    in srgb,
    var(--os-primary-fg) 92%,
    var(--os-text-muted)
  );
  color: var(--os-primary);
}

.os-landing .os-button__icon {
  flex-shrink: 0;
}

/* ── Hero (v0: py-12 lg:py-20, grid lg:12 cols) ───────────── */

.os-landing .os-hero {
  padding-block: var(--os-section-y-lg);
}

.os-landing .os-hero__grid {
  display: grid;
  gap: 2rem;
  align-items: center;
}

.os-landing .os-hero__content {
  display: flex;
  flex-direction: column;
  gap: 1.25rem;
}

.os-landing .os-hero__prompt {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  margin: 0;
  font-family: var(--os-font-mono);
  font-size: var(--text-sm);
  color: var(--os-text-muted);
}

.os-landing .os-hero__prompt-prefix {
  color: var(--os-primary);
}

.os-landing .os-hero__cursor {
  display: inline-block;
  width: 0.5rem;
  height: 1rem;
  background: var(--os-primary);
  animation: os-cursor-pulse 1s step-end infinite;
}

.os-landing .os-hero__title {
  margin: 0;
  font-size: clamp(3rem, 8vw, 4.5rem);
  font-weight: var(--font-weight-bold);
  line-height: 0.9;
  letter-spacing: var(--os-tracking-tight);
  text-wrap: balance;
  color: var(--os-text);
}

.os-landing .os-hero__subtitle {
  margin: 0;
  max-width: 32rem;
  font-size: clamp(1.25rem, 3vw, 1.875rem);
  font-weight: var(--font-weight-medium);
  line-height: var(--line-height-snug);
  color: var(--os-text-muted);
}

.os-landing .os-hero__subtitle-accent {
  color: var(--os-primary);
  font-weight: var(--font-weight-bold);
}

.os-landing .os-hero__lead {
  max-width: 28rem;
  margin: 0;
  font-size: var(--text-base);
  line-height: 1.625;
  color: var(--os-text-muted);
}

.os-landing .os-hero__lead strong {
  color: var(--os-text);
  font-weight: var(--font-weight-bold);
}

.os-landing .os-hero__actions {
  padding-top: 0.5rem;
}

.os-landing .os-hero__aside {
  display: none;
}

@media (min-width: 1024px) {
  .os-landing .os-hero__grid {
    grid-template-columns: 7fr 5fr;
    gap: 3rem;
  }

  .os-landing .os-hero__aside {
    display: block;
  }
}

/* ── Win98 window / inset ─────────────────────────────────── */

.os-landing .win98-window {
  display: flex;
  flex-direction: column;
  width: 100%;
  max-width: 100%;
  border: 2px solid;
  border-color: var(--win98-bevel-light) var(--win98-bevel-dark)
    var(--win98-bevel-dark) var(--win98-bevel-light);
  background: var(--win98-chrome);
  box-shadow: 1px 1px 0 var(--win98-bevel-dark);
}

.os-landing .win98-window__titlebar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 0.25rem;
  min-height: 18px;
  padding: 1px 2px;
  background: linear-gradient(
    90deg,
    var(--win98-titlebar-start) 0%,
    var(--win98-titlebar-end) 100%
  );
}

.os-landing .win98-window__title {
  overflow: hidden;
  min-width: 0;
  padding-inline: 4px;
  color: var(--win98-title-text);
  font-family: Tahoma, var(--os-font);
  font-size: 11px;
  font-weight: var(--font-weight-bold);
  line-height: 1.2;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.os-landing .win98-window__controls {
  display: flex;
  flex-shrink: 0;
  gap: 2px;
}

.os-landing .win98-window__control {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 16px;
  height: 14px;
  border: 1px solid;
  border-color: var(--win98-bevel-light) var(--win98-bevel-dark)
    var(--win98-bevel-dark) var(--win98-bevel-light);
  background: var(--win98-chrome);
  color: #000;
  font-size: 9px;
  font-weight: var(--font-weight-bold);
  line-height: 1;
  user-select: none;
}

.os-landing .win98-window__control--max {
  font-size: 8px;
}

.os-landing .win98-window__control-icon {
  display: block;
  width: 7px;
  height: 6px;
  border: 1px solid #000;
  border-top-width: 2px;
}

.os-landing .win98-window__control--close {
  font-size: 10px;
  line-height: 0.9;
}

.os-landing .win98-window__body {
  background: var(--win98-chrome);
}

.os-landing .win98-inset {
  margin: 2px;
  border: 2px solid;
  border-color: var(--win98-inset-dark) var(--win98-bevel-light)
    var(--win98-bevel-light) var(--win98-inset-dark);
  background: var(--win98-inset-bg);
}

.os-landing .win98-terminal {
  min-height: 8.75rem;
  padding: 0.75rem;
  background: var(--win98-terminal-bg);
  color: var(--win98-terminal-text);
  font-family: var(--os-font-mono);
  font-size: 0.75rem;
  line-height: 1.5;
}

.os-landing .win98-terminal__user {
  color: var(--win98-terminal-user);
}

.os-landing .win98-terminal__path {
  color: var(--win98-terminal-path);
}

.os-landing .win98-terminal__cursor {
  display: inline-block;
  width: 0.5rem;
  height: 0.75rem;
  margin-inline-start: 0.25rem;
  background: var(--win98-terminal-text);
  vertical-align: middle;
}

/* ── Product preview (v0: py-10 lg:py-14, rounded-[5px]) ───── */

.os-landing .os-preview {
  padding-block: var(--os-section-y);
}

.os-landing .os-preview__frame {
  overflow: hidden;
  border: 1px solid var(--os-border);
  border-radius: var(--os-radius-card);
  background: var(--os-card);
}

.os-landing .os-preview__image {
  display: block;
  width: 100%;
  height: auto;
}

.os-landing .os-preview__caption {
  margin: 1rem 0 0;
  color: var(--os-text-muted);
  font-family: var(--os-font-mono);
  font-size: var(--text-xs);
  text-align: center;
}

/* ── Quote (v0: border-l-2 border-primary) ────────────────── */

.os-landing .os-quote {
  padding-block: var(--os-section-y);
}

.os-landing .os-quote__block {
  margin: 0;
  padding-left: clamp(1.5rem, 4vw, 2rem);
  border-left: 2px solid var(--os-primary);
}

.os-landing .os-quote__text {
  margin: 0;
  color: var(--os-text-muted);
  font-size: clamp(1.125rem, 2.5vw, 1.25rem);
  line-height: var(--line-height-body);
  text-wrap: pretty;
}

.os-landing .os-quote__text strong {
  color: var(--os-text);
  font-weight: var(--font-weight-bold);
}

.os-landing .os-quote__footer {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  margin-top: 1rem;
}

.os-landing .os-quote__rule {
  flex-shrink: 0;
  width: 2rem;
  height: 1px;
  background: var(--os-border);
}

.os-landing .os-quote__cite {
  color: var(--os-text);
  font-size: var(--text-sm);
  font-style: normal;
  font-weight: var(--font-weight-medium);
}

/* ── Features / manifesto (v0: py-12 bg-card border-y) ────── */

.os-landing .os-features {
  padding-block: 3rem;
  background: var(--os-card);
  border-block: 1px solid var(--os-border);
}

.os-landing .os-features__grid {
  display: grid;
  gap: 1.5rem;
  align-items: center;
}

.os-landing .os-features__title {
  margin: 0;
  font-size: clamp(1.5rem, 3vw, 2.25rem);
  font-weight: var(--font-weight-bold);
  line-height: var(--line-height-tight);
  letter-spacing: var(--os-tracking-tight);
  text-wrap: balance;
  color: var(--os-text);
}

.os-landing .os-features__body {
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

.os-landing .os-features__text {
  margin: 0;
  color: var(--os-text-muted);
  font-size: clamp(0.875rem, 2vw, 1rem);
  line-height: var(--line-height-body);
}

.os-landing .os-features__text strong {
  color: var(--os-text);
  font-weight: var(--font-weight-bold);
}

@media (min-width: 1024px) {
  .os-landing .os-features__grid {
    grid-template-columns: 1fr 1fr;
    gap: 2.5rem;
  }
}

/* ── Concept (v0: py-16 lg:py-24, max-w-4xl diagram) ────────── */

.os-landing .os-concept {
  padding-block: var(--os-section-y-xl);
}

.os-landing .os-concept__header {
  margin-bottom: clamp(2.5rem, 5vw, 4rem);
  text-align: center;
}

.os-landing .os-concept__title {
  margin: 0 0 1rem;
  font-size: clamp(1.875rem, 4vw, 3rem);
  font-weight: var(--font-weight-bold);
  line-height: var(--line-height-tight);
  letter-spacing: var(--os-tracking-tight);
  color: var(--os-text);
}

.os-landing .os-concept__lead {
  max-width: var(--os-max-width-narrow);
  margin: 0 auto;
  color: var(--os-text-muted);
  font-size: clamp(1rem, 2vw, 1.125rem);
  line-height: var(--line-height-body);
}

.os-landing .os-concept__lead strong {
  color: var(--os-text);
  font-weight: var(--font-weight-bold);
}

.os-landing .os-concept__diagram {
  width: 100%;
  max-width: var(--os-max-width-diagram);
  margin-inline: auto;
  overflow: hidden;
}

.os-landing .os-concept__svg {
  display: block;
  width: 100%;
  max-width: 100%;
  height: auto;
  color: var(--os-svg-color);
}

.os-landing .os-concept__svg .os-concept__label text,
.os-landing .os-concept__svg .os-concept__timeline text {
  font-family: var(--os-font-mono);
  font-size: 16px;
  font-weight: var(--font-weight-medium);
}

.os-landing .os-concept__svg .os-concept__destination text {
  font-family: var(--os-font-mono);
  font-size: 14px;
  font-weight: var(--font-weight-bold);
}

.os-landing .os-concept__svg .os-concept__timeline text {
  font-size: 10px;
}

.os-landing .os-concept__path--dash {
  animation: os-concept-dash 20s linear infinite;
}

.os-landing .os-concept__path--dash-delay {
  animation-delay: -10s;
}

@media (max-width: 767px) {
  .os-landing .os-concept__diagram {
    margin-inline: calc(var(--os-pad-x) * -0.15);
  }

  .os-landing .os-concept__svg .os-concept__label text,
  .os-landing .os-concept__svg .os-concept__timeline text {
    font-size: 14px;
  }

  .os-landing .os-concept__svg .os-concept__destination text {
    font-size: 12px;
  }
}

/* ── Credit (v0: same card strip as manifesto) ────────────── */

.os-landing .os-credit {
  padding-block: 3rem;
  background: var(--os-card);
  border-block: 1px solid var(--os-border);
}

.os-landing .os-credit__inner {
  max-width: var(--os-max-width-narrow);
  margin-inline: auto;
  text-align: center;
}

.os-landing .os-credit__title {
  margin: 0 0 1.5rem;
  font-size: clamp(1.5rem, 3vw, 2.25rem);
  font-weight: var(--font-weight-bold);
  line-height: var(--line-height-tight);
  letter-spacing: var(--os-tracking-tight);
  text-wrap: balance;
  color: var(--os-text);
}

.os-landing .os-credit__body {
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

.os-landing .os-credit__text {
  margin: 0;
  color: var(--os-text-muted);
  font-size: clamp(0.875rem, 2vw, 1rem);
  line-height: var(--line-height-body);
}

.os-landing .os-credit__text strong {
  color: var(--os-text);
  font-weight: var(--font-weight-bold);
}

/* ── CTA (v0: bg-primary mx-6 lg:mx-8 my-8) ───────────────── */

.os-landing .os-cta {
  margin: 2rem clamp(1.5rem, 4vw, 2rem);
  padding-block: clamp(3rem, 6vw, 4rem);
  background: var(--os-primary);
  color: var(--os-primary-fg);
  overflow: hidden;
}

.os-landing .os-cta__inner {
  max-width: var(--os-max-width-narrow);
  margin-inline: auto;
  text-align: center;
}

.os-landing .os-cta__title {
  margin: 0 0 1.5rem;
  font-size: clamp(1.5rem, 3vw, 2.25rem);
  font-weight: var(--font-weight-bold);
  line-height: var(--line-height-tight);
  letter-spacing: var(--os-tracking-tight);
  color: var(--os-primary-fg);
}

.os-landing .os-cta__footnote {
  margin: 1.5rem 0 0;
  color: color-mix(in srgb, var(--os-primary-fg) 50%, transparent);
  font-family: var(--os-font-mono);
  font-size: var(--text-xs);
}

/* ── Motion ───────────────────────────────────────────────── */

@keyframes os-cursor-pulse {
  0%,
  100% {
    opacity: 1;
  }

  50% {
    opacity: 0;
  }
}

@keyframes os-concept-dash {
  from {
    stroke-dashoffset: 0;
  }

  to {
    stroke-dashoffset: -1000;
  }
}

@media (prefers-reduced-motion: reduce) {
  .os-landing .os-hero__cursor,
  .os-landing .os-concept__path--dash {
    animation: none;
  }
}