/* peerbox landing. Dark default + opt-in light. BEM naming throughout.
   Palette follows the app icon: ink, amber (the connection), teal (a peer). */

/* Dark is the default, matching the app; the toggle (theme.js) persists a
   light choice. The system preference is deliberately not consulted. */
:root {
  color-scheme: dark;
  --color-bg: #14171c;
  --color-bg-alt: #1b1f27;
  --color-surface: #232833;
  --color-border: #343b49;
  --color-rule: #2a303c;
  --color-text: #e9ebf1;
  --color-text-muted: #a9b0bf;
  --color-text-faint: #8f97a8;
  --color-accent: #e2a640;
  --color-accent-fill: #e2a640;
  --color-accent-fill-hover: #efbb5f;
  --color-on-accent: #14171c;
  --color-signal: #e2a640;
  --color-linked: #52c7b8;
  --color-linked-soft: rgba(82, 199, 184, 0.14);
  --font-body: "Instrument Sans", "Helvetica Neue", Arial, sans-serif;
  --font-display: "Space Grotesk", "Helvetica Neue", Arial, sans-serif;
  --font-mono: "IBM Plex Mono", "Courier New", monospace;
  --container: 1120px;
}

[data-theme="light"] {
  /* Bright amber is ~2:1 on light, so text/fills use a darker amber and the
     bright one is kept for strokes and the travelling packet. */
  color-scheme: light;
  --color-bg: #f3f4f6;
  --color-bg-alt: #e8eaee;
  --color-surface: #ffffff;
  --color-border: #d5d9e0;
  --color-rule: #dde0e6;
  --color-text: #14171c;
  --color-text-muted: #474e5c;
  --color-text-faint: #5a6170;
  --color-accent: #875800;
  --color-accent-fill: #8f5d07;
  --color-accent-fill-hover: #7a4f04;
  --color-on-accent: #ffffff;
  --color-signal: #d9982c;
  --color-linked: #137569;
  --color-linked-soft: #d8efec;
}

* {
  box-sizing: border-box;
}

.page {
  margin: 0;
  background: var(--color-bg);
  color: var(--color-text);
  font-family: var(--font-body);
  -webkit-font-smoothing: antialiased;
}

a {
  color: var(--color-accent);
}

:focus-visible {
  outline: 2px solid var(--color-accent);
  outline-offset: 2px;
}

.container {
  max-width: var(--container);
  margin: 0 auto;
  width: 100%;
}

/* Nav */

.nav {
  display: flex;
  justify-content: space-between;
  align-items: center;
  max-width: calc(var(--container) + 64px);
  margin: 0 auto;
  padding: 24px 32px;
}

.nav__brand {
  display: flex;
  align-items: center;
  gap: 10px;
  color: var(--color-text);
  text-decoration: none;
}

.nav__logo {
  display: block;
  width: 36px;
  height: 36px;
}

.nav__name {
  font-family: var(--font-display);
  font-size: 26px;
  font-weight: 600;
  letter-spacing: -0.02em;
}

.nav__links {
  display: flex;
  align-items: center;
  gap: 28px;
}

.nav__link {
  font-size: 15px;
  color: var(--color-text-muted);
  text-decoration: none;
}

.nav__link:hover {
  color: var(--color-text);
}

.nav__cta {
  background: var(--color-accent-fill);
  color: var(--color-on-accent);
  font-size: 15px;
  font-weight: 600;
  padding: 10px 18px;
  border-radius: 8px;
  text-decoration: none;
}

.nav__cta:hover {
  background: var(--color-accent-fill-hover);
}

/* Theme toggle: hidden until theme.js adds .js, since it needs JS to work. */

.theme-toggle {
  display: none;
  align-items: center;
  justify-content: center;
  width: 36px;
  height: 36px;
  padding: 0;
  color: var(--color-text-muted);
  background: transparent;
  border: 1px solid var(--color-border);
  border-radius: 8px;
  cursor: pointer;
}

.js .theme-toggle {
  display: inline-flex;
}

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

/* Show the icon for the theme you would switch to. */
.theme-toggle__moon,
[data-theme="light"] .theme-toggle__sun {
  display: none;
}

[data-theme="light"] .theme-toggle__moon {
  display: block;
}

/* Hero: pitch on the left, the sync scene on the right. */

.hero {
  display: grid;
  grid-template-columns: minmax(0, 1.2fr) minmax(0, 1fr);
  align-items: center;
  gap: 56px;
  max-width: calc(var(--container) + 64px);
  margin: 0 auto;
  padding: 56px 32px 104px;
}

.hero__text {
  display: flex;
  flex-direction: column;
  gap: 24px;
}

.hero__title {
  margin: 0;
  font-family: var(--font-display);
  font-weight: 600;
  font-size: clamp(42px, 5vw, 64px);
  line-height: 1.02;
  letter-spacing: -0.035em;
  text-wrap: balance;
}

.hero__sub {
  margin: 0;
  max-width: 34em;
  font-size: 19px;
  line-height: 1.55;
  color: var(--color-text-muted);
  text-wrap: pretty;
}

.hero .actions {
  justify-content: flex-start;
  margin-top: 8px;
}

/* Sync scene */

.scene {
  display: flex;
  flex-direction: column;
  align-items: stretch;
}

.scene__device {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: 12px;
  overflow: hidden;
}

.scene__bar {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  padding: 12px 18px;
  border-bottom: 1px solid var(--color-rule);
}

.scene__name {
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 15px;
}

.scene__path {
  font-family: var(--font-mono);
  font-size: 13px;
  color: var(--color-text-faint);
}

.scene__files {
  margin: 0;
  padding: 6px 0;
  list-style: none;
}

.scene__file {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 7px 18px;
  font-family: var(--font-mono);
  font-size: 14px;
  color: var(--color-text-muted);
}

.scene__file--new,
.scene__file--arrive {
  color: var(--color-text);
}

.scene__file--arrive {
  background: var(--color-linked-soft);
}

.scene__tag {
  font-family: var(--font-body);
  font-size: 12px;
  font-weight: 600;
}

.scene__tag--saved {
  color: var(--color-accent);
}

.scene__tag--synced {
  color: var(--color-linked);
}

.scene__wire {
  position: relative;
  height: 76px;
  margin-left: 42px;
  border-left: 2px dashed var(--color-signal);
}

.scene__wire-label {
  position: absolute;
  top: 50%;
  left: 18px;
  transform: translateY(-50%);
  font-size: 13px;
  color: var(--color-text-faint);
}

.scene__packet {
  position: absolute;
  left: -8px;
  top: 0;
  width: 14px;
  height: 14px;
  border-radius: 3px;
  background: var(--color-signal);
  opacity: 0;
}

/* The one orchestrated moment: save -> travel -> arrive. Without animation
   (reduced motion) the final state is what shows. */
@media (prefers-reduced-motion: no-preference) {
  .scene__file--new {
    animation: scene-appear 0.5s ease-out 0.5s both;
  }

  .scene__packet {
    animation: scene-travel 1s ease-in-out 1.1s both;
  }

  .scene__file--arrive {
    animation: scene-appear 0.5s ease-out 2.1s both;
  }
}

@keyframes scene-appear {
  from {
    opacity: 0;
    transform: translateY(-4px);
  }
}

@keyframes scene-travel {
  0% {
    top: -7px;
    opacity: 0;
  }
  15%,
  85% {
    opacity: 1;
  }
  100% {
    top: calc(100% - 7px);
    opacity: 0;
  }
}

/* Download actions (hero + CTA) */

.actions {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 10px;
}

.actions__primary {
  padding: 14px 22px;
  font-size: 16px;
  font-weight: 600;
  color: var(--color-on-accent);
  background: var(--color-accent-fill);
  border-radius: 8px;
  text-decoration: none;
  white-space: nowrap;
}

.actions__primary:hover {
  background: var(--color-accent-fill-hover);
}

.actions__note {
  margin: 0;
  font-size: 14px;
  color: var(--color-text-faint);
}

.hero .actions__note {
  margin-top: -12px;
}

/* Sections */

.section {
  padding: 104px 32px;
  border-top: 1px solid var(--color-rule);
}

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

.section__title {
  margin: 0 0 56px;
  max-width: 18em;
  font-family: var(--font-display);
  font-weight: 600;
  font-size: clamp(32px, 3.8vw, 46px);
  line-height: 1.08;
  letter-spacing: -0.03em;
}

/* Steps: a real sequence, joined by a rule through the numerals. */

.steps {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 48px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.step {
  position: relative;
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.step:not(:last-child)::after {
  content: "";
  position: absolute;
  top: 26px;
  left: 64px;
  right: -36px;
  border-top: 2px dashed var(--color-signal);
}

.step__num {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 52px;
  height: 52px;
  margin-bottom: 8px;
  font-family: var(--font-display);
  font-size: 24px;
  font-weight: 600;
  color: var(--color-accent);
  border: 2px solid var(--color-signal);
  border-radius: 12px;
}

.step__title,
.feature__title {
  margin: 0;
  font-family: var(--font-display);
  font-size: 21px;
  font-weight: 600;
  letter-spacing: -0.01em;
}

.step__body,
.feature__body {
  margin: 0;
  max-width: 32em;
  font-size: 16px;
  line-height: 1.6;
  color: var(--color-text-muted);
}

.step__words {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 6px;
  margin: 4px 0 0;
}

.step__word {
  font-family: var(--font-mono);
  font-size: 13px;
  color: var(--color-text);
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: 6px;
  padding: 3px 8px;
}

.step__more {
  font-size: 13px;
  color: var(--color-text-faint);
  padding-left: 4px;
}

/* Security */

.features {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 48px;
}

.feature {
  display: flex;
  flex-direction: column;
  gap: 12px;
  padding-top: 24px;
  border-top: 2px solid var(--color-text);
}

.feature__icon {
  color: var(--color-linked);
}

/* Open source */

.open {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
  gap: 64px;
}

.open .section__title {
  margin: 0;
}

.open__body {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 20px;
  font-size: 18px;
  line-height: 1.6;
  color: var(--color-text-muted);
}

.open__body p {
  margin: 0;
}

.open__claim {
  font-family: var(--font-display);
  font-size: 22px;
  font-weight: 600;
  line-height: 1.3;
  color: var(--color-text);
}

.open__link {
  font-weight: 600;
  text-underline-offset: 3px;
}

/* CTA */

.cta {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 20px;
  padding: 104px 32px;
  background: var(--color-bg-alt);
  text-align: center;
  border-top: 1px solid var(--color-rule);
}

.cta__title {
  margin: 0;
  font-family: var(--font-display);
  font-weight: 600;
  font-size: clamp(32px, 3.8vw, 46px);
  letter-spacing: -0.03em;
}

.cta__support {
  margin: 16px 0 0;
  max-width: 40em;
  font-size: 15px;
  line-height: 1.55;
  color: var(--color-text-muted);
  text-wrap: balance;
}

.cta__support a {
  white-space: nowrap;
}

.cta__sub {
  margin: 0 0 8px;
  font-size: 18px;
  color: var(--color-text-muted);
}

/* Footer */

.footer {
  display: flex;
  align-items: center;
  gap: 24px;
  max-width: calc(var(--container) + 64px);
  margin: 0 auto;
  padding: 32px;
  font-size: 14px;
  color: var(--color-text-faint);
}

.footer__brand {
  font-family: var(--font-display);
  font-weight: 600;
  color: var(--color-text);
}

.footer__link {
  color: var(--color-text-muted);
}

.footer__legal {
  margin-left: auto;
}

/* Short viewports (e.g. 1366x768): keep the hero within the first screen. */

@media (max-height: 820px) and (min-width: 961px) {
  .hero {
    padding: 32px 32px 72px;
  }

  .hero__title {
    font-size: clamp(38px, 4.2vw, 56px);
  }

  .scene__wire {
    height: 56px;
  }

  .section,
  .cta {
    padding: 72px 32px;
  }
}

/* Tablet: stack the hero, keep the grids. */

@media (max-width: 960px) {
  .hero {
    grid-template-columns: minmax(0, 1fr);
    gap: 48px;
    padding: 40px 32px 80px;
  }

  /* Stacked, the pitch reads better centred over the scene. */
  .hero__text {
    align-items: center;
    text-align: center;
  }

  .hero .actions {
    justify-content: center;
  }

  .scene {
    width: 100%;
    max-width: 560px;
    margin: 0 auto;
  }

  .open {
    grid-template-columns: minmax(0, 1fr);
    gap: 24px;
  }
}

/* Mobile */

@media (max-width: 760px) {
  .nav {
    padding: 16px 20px;
  }

  .nav__link {
    display: none;
  }

  .nav__logo {
    width: 30px;
    height: 30px;
  }

  .nav__name {
    font-size: 22px;
  }

  .nav__links {
    gap: 12px;
  }

  .nav__cta {
    font-size: 14px;
    padding: 9px 14px;
  }

  .hero {
    padding: 24px 20px 64px;
    gap: 40px;
  }

  .hero__sub {
    font-size: 17px;
  }

  .actions {
    flex-direction: column;
    align-self: stretch;
    text-align: center;
  }

  .scene__file {
    font-size: 13px;
    padding: 6px 14px;
  }

  .scene__bar {
    padding: 10px 14px;
  }

  .scene__wire {
    margin-left: 30px;
    height: 60px;
  }

  .section {
    padding: 64px 20px;
  }

  .section__title {
    margin-bottom: 36px;
  }

  .steps,
  .features {
    grid-template-columns: minmax(0, 1fr);
    gap: 40px;
  }

  /* Vertical connector between stacked steps. */
  .step:not(:last-child)::after {
    top: 60px;
    bottom: -32px;
    left: 25px;
    right: auto;
    border-top: none;
    border-left: 2px dashed var(--color-signal);
  }

  .step {
    padding-left: 72px;
  }

  .step__num {
    position: absolute;
    left: 0;
    top: 0;
  }

  .open__body {
    font-size: 17px;
  }

  .cta {
    padding: 64px 20px;
  }

  .footer {
    flex-wrap: wrap;
    gap: 12px 20px;
    padding: 24px 20px;
  }
}