/* =========================================================================
   LEAN ORBIT — Stylesheet
   ---------------------------------------------------------------------------
   All colors, fonts, and spacing live as CSS variables in :root below.
   Change them in one place and the whole site updates.
   ========================================================================= */

:root {
  /* ---------- COLORS (change these to re-theme) ------------------------- */
  --color-paper:       #FAF8F4;   /* page background        */
  --color-surface:     #F2EFE8;   /* card / panel surface   */
  --color-ink:         #161613;   /* primary text           */
  --color-muted:       #6B6862;   /* secondary text         */
  --color-clay:        #C97B5C;   /* accent (warm)          */
  --color-clay-deep:   #A85F42;   /* accent on hover        */
  --color-border:      #E4DED2;   /* hairline borders       */
  --color-orbit:       rgba(22, 22, 19, 0.10);
  --color-orbit-fade:  rgba(22, 22, 19, 0.04);

  /* ---------- TYPOGRAPHY ------------------------------------------------ */
  --font-display: 'Fraunces', Georgia, 'Times New Roman', serif;
  --font-body:    'IBM Plex Sans', system-ui, -apple-system, sans-serif;
  --font-mono:    'IBM Plex Mono', ui-monospace, 'SF Mono', Menlo, monospace;

  /* ---------- SPACING --------------------------------------------------- */
  --space-1: 0.25rem;
  --space-2: 0.5rem;
  --space-3: 1rem;
  --space-4: 1.5rem;
  --space-5: 2rem;
  --space-6: 3rem;
  --space-7: 5rem;
  --space-8: 8rem;

  /* ---------- LAYOUT ---------------------------------------------------- */
  --max-width:     1180px;
  --content-width: 680px;

  /* ---------- MISC ------------------------------------------------------ */
  --radius-sm:  4px;
  --radius-md:  10px;
  --radius-lg:  20px;
  --easing:     cubic-bezier(0.22, 1, 0.36, 1);
}

/* =========================================================================
   RESET & BASE
   ========================================================================= */

*, *::before, *::after { box-sizing: border-box; }

html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }

body {
  margin: 0;
  font-family: var(--font-body);
  font-size: 17px;
  line-height: 1.6;
  color: var(--color-ink);
  background: var(--color-paper);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  font-feature-settings: 'ss01', 'cv01';
}

img, svg { display: block; max-width: 100%; }

a {
  color: var(--color-ink);
  text-decoration: none;
  transition: color 180ms var(--easing);
}

a:hover { color: var(--color-clay-deep); }

button { font-family: inherit; cursor: pointer; }

::selection { background: var(--color-clay); color: var(--color-paper); }

/* =========================================================================
   LAYOUT PRIMITIVES
   ========================================================================= */

.container {
  width: 100%;
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 var(--space-4);
}

.section {
  padding: var(--space-7) 0;
}

.section--tight { padding: var(--space-6) 0; }

.eyebrow {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--color-muted);
  display: inline-block;
}

.eyebrow::before {
  content: '◦ ';
  color: var(--color-clay);
}

/* =========================================================================
   TYPOGRAPHY
   ========================================================================= */

h1, h2, h3, h4 {
  font-family: var(--font-display);
  font-weight: 400;
  font-variation-settings: 'opsz' 144, 'SOFT' 30, 'WONK' 0;
  line-height: 1.05;
  letter-spacing: -0.02em;
  color: var(--color-ink);
  margin: 0;
}

.h-display {
  font-size: clamp(2.5rem, 6.5vw, 5rem);
  font-variation-settings: 'opsz' 144, 'SOFT' 50, 'WONK' 0;
  line-height: 1.0;
  letter-spacing: -0.03em;
}

.h-display em {
  font-style: italic;
  font-variation-settings: 'opsz' 144, 'SOFT' 100, 'WONK' 1;
  color: var(--color-clay);
}

.h-page {
  font-size: clamp(2rem, 5vw, 3.5rem);
  margin-bottom: var(--space-4);
}

h2 { font-size: clamp(1.6rem, 3.5vw, 2.4rem); }
h3 { font-size: 1.25rem; font-family: var(--font-body); font-weight: 500; letter-spacing: -0.005em; }

p { margin: 0 0 var(--space-3); }

.lede {
  font-size: clamp(1.1rem, 2vw, 1.35rem);
  line-height: 1.5;
  color: var(--color-muted);
  max-width: 36ch;
}

.prose {
  max-width: var(--content-width);
}

.prose p { font-size: 1.0625rem; color: var(--color-ink); }

.prose p + p { margin-top: var(--space-3); }

/* =========================================================================
   NAVIGATION
   ========================================================================= */

.nav {
  position: sticky;
  top: 0;
  z-index: 50;
  background: color-mix(in srgb, var(--color-paper) 88%, transparent);
  backdrop-filter: saturate(140%) blur(12px);
  -webkit-backdrop-filter: saturate(140%) blur(12px);
  border-bottom: 1px solid transparent;
  transition: border-color 200ms var(--easing);
}

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

.nav__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: var(--space-3) var(--space-4);
  max-width: var(--max-width);
  margin: 0 auto;
}

.brand {
  display: flex;
  align-items: center;
  gap: 0.55rem;
  font-family: var(--font-display);
  font-size: 1.2rem;
  font-variation-settings: 'opsz' 12, 'SOFT' 40;
  letter-spacing: -0.01em;
}

.brand__mark {
  width: 22px;
  height: 22px;
  flex-shrink: 0;
}

.brand__name strong { font-weight: 500; }
.brand__name { color: var(--color-ink); }

.nav__links {
  display: flex;
  align-items: center;
  gap: var(--space-5);
  list-style: none;
  margin: 0;
  padding: 0;
}

.nav__links a {
  font-size: 0.95rem;
  color: var(--color-muted);
  position: relative;
}

.nav__links a:hover,
.nav__links a[aria-current="page"] {
  color: var(--color-ink);
}

.nav__links a[aria-current="page"]::after {
  content: '';
  position: absolute;
  left: 0; right: 0; bottom: -6px;
  height: 1px;
  background: var(--color-clay);
}

.nav__toggle {
  display: none;
  background: none;
  border: none;
  padding: var(--space-2);
  color: var(--color-ink);
}

.nav__toggle svg { width: 22px; height: 22px; }

/* =========================================================================
   BUTTONS
   ========================================================================= */

.btn {
  display: inline-flex;
  align-items: center;
  gap: 0.55rem;
  padding: 0.85rem 1.4rem;
  font-family: var(--font-body);
  font-size: 0.95rem;
  font-weight: 500;
  border-radius: 999px;
  border: 1px solid var(--color-ink);
  background: var(--color-ink);
  color: var(--color-paper);
  transition: all 200ms var(--easing);
  white-space: nowrap;
}

.btn:hover {
  background: var(--color-clay-deep);
  border-color: var(--color-clay-deep);
  color: var(--color-paper);
  transform: translateY(-1px);
}

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

.btn--ghost:hover {
  background: var(--color-surface);
  border-color: var(--color-ink);
  color: var(--color-ink);
}

.btn__arrow {
  transition: transform 200ms var(--easing);
}

.btn:hover .btn__arrow { transform: translateX(3px); }

/* =========================================================================
   HERO (landing)
   ========================================================================= */

.hero {
  position: relative;
  padding: var(--space-7) 0 var(--space-7);
  overflow: hidden;
}

.hero__grid {
  display: grid;
  grid-template-columns: 1.3fr 1fr;
  gap: var(--space-6);
  align-items: center;
}

.hero__copy { position: relative; z-index: 2; }
.hero__visual { position: relative; min-height: 360px; }

.hero__eyebrow { margin-bottom: var(--space-4); }

.hero__title { margin-bottom: var(--space-4); }

.hero__lede { margin-bottom: var(--space-5); font-size: clamp(1.15rem, 1.8vw, 1.3rem); }

.hero__cta {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-3);
}

/* Orbital SVG */
.orbit {
  width: 100%;
  max-width: 460px;
  margin-left: auto;
  aspect-ratio: 1;
}

.orbit__ring {
  fill: none;
  stroke: var(--color-orbit);
  stroke-width: 1;
}

.orbit__ring--faint { stroke: var(--color-orbit-fade); }

.orbit__dot { fill: var(--color-ink); }
.orbit__dot--clay { fill: var(--color-clay); }

.orbit__core { fill: var(--color-ink); }

.orbit__spinner-1,
.orbit__spinner-2,
.orbit__spinner-3 {
  transform-box: view-box;
  transform-origin: 50% 50%;
}
.orbit__spinner-1 { animation: orbit-rotate 28s linear infinite; }
.orbit__spinner-2 { animation: orbit-rotate 44s linear infinite reverse; }
.orbit__spinner-3 { animation: orbit-rotate 64s linear infinite; }

@keyframes orbit-rotate {
  to { transform: rotate(360deg); }
}

@media (prefers-reduced-motion: reduce) {
  .orbit__spinner-1, .orbit__spinner-2, .orbit__spinner-3 { animation: none; }
}

/* =========================================================================
   PILLARS (3-column principles)
   ========================================================================= */

.pillars {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-5);
  margin-top: var(--space-5);
}

.pillar {
  border-top: 1px solid var(--color-border);
  padding-top: var(--space-4);
}

.pillar__num {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.12em;
  color: var(--color-clay);
  margin-bottom: var(--space-3);
}

.pillar h3 {
  font-family: var(--font-display);
  font-size: 1.6rem;
  font-weight: 400;
  font-variation-settings: 'opsz' 60, 'SOFT' 60;
  margin-bottom: var(--space-2);
  letter-spacing: -0.01em;
}

.pillar p {
  color: var(--color-muted);
  font-size: 0.97rem;
  line-height: 1.55;
  margin: 0;
}

/* =========================================================================
   SECTION HEADERS / FEATURED
   ========================================================================= */

.section-header {
  display: flex;
  justify-content: space-between;
  align-items: end;
  flex-wrap: wrap;
  gap: var(--space-4);
  margin-bottom: var(--space-5);
  border-bottom: 1px solid var(--color-border);
  padding-bottom: var(--space-4);
}

.section-header h2 {
  font-variation-settings: 'opsz' 60, 'SOFT' 50;
  max-width: 18ch;
}

.section-header__meta {
  color: var(--color-muted);
  font-size: 0.95rem;
  max-width: 32ch;
}

/* =========================================================================
   APP CARDS (products page + featured on landing)
   ========================================================================= */

.apps {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--space-5);
}

.app-card {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: var(--space-5);
  display: flex;
  flex-direction: column;
  position: relative;
  transition: transform 250ms var(--easing), box-shadow 250ms var(--easing);
  overflow: hidden;
}

.app-card:hover {
  transform: translateY(-3px);
  box-shadow: 0 14px 40px -22px rgba(22, 22, 19, 0.35);
}

.app-card__status {
  position: absolute;
  top: var(--space-4);
  right: var(--space-4);
  font-family: var(--font-mono);
  font-size: 0.7rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--color-muted);
  display: flex;
  align-items: center;
  gap: 0.4rem;
}

.app-card__status::before {
  content: '';
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--color-muted);
}

.app-card__status--live { color: var(--color-clay-deep); }
.app-card__status--live::before { background: var(--color-clay); }

.app-card__icon {
  width: 64px;
  height: 64px;
  border-radius: 14px;
  background: var(--color-ink);
  display: grid;
  place-items: center;
  margin-bottom: var(--space-4);
  color: var(--color-paper);
  font-family: var(--font-display);
  font-size: 1.6rem;
  font-variation-settings: 'opsz' 36, 'SOFT' 60;
}

.app-card__name {
  font-family: var(--font-display);
  font-size: 1.6rem;
  font-weight: 400;
  font-variation-settings: 'opsz' 60, 'SOFT' 50;
  letter-spacing: -0.01em;
  margin-bottom: var(--space-2);
}

.app-card__tagline {
  color: var(--color-muted);
  margin-bottom: var(--space-4);
  font-size: 1rem;
}

.app-card__meta {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-2);
  margin-bottom: var(--space-4);
}

.app-card__tag {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  padding: 0.3rem 0.6rem;
  border: 1px solid var(--color-border);
  border-radius: 999px;
  color: var(--color-muted);
  background: var(--color-paper);
}

.app-card__cta {
  margin-top: auto;
}

.app-card__link {
  font-family: var(--font-mono);
  font-size: 0.8rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--color-ink);
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  border-bottom: 1px solid var(--color-ink);
  padding-bottom: 2px;
}

.app-card__link:hover {
  color: var(--color-clay-deep);
  border-color: var(--color-clay-deep);
}

/* =========================================================================
   ABOUT — large quote / philosophy block
   ========================================================================= */

.philosophy {
  background: var(--color-surface);
  border-radius: var(--radius-lg);
  padding: var(--space-6) var(--space-5);
  margin: var(--space-6) 0;
  border: 1px solid var(--color-border);
}

.philosophy blockquote {
  font-family: var(--font-display);
  font-size: clamp(1.4rem, 3vw, 2rem);
  font-weight: 400;
  font-variation-settings: 'opsz' 100, 'SOFT' 80;
  line-height: 1.3;
  letter-spacing: -0.015em;
  color: var(--color-ink);
  margin: 0 0 var(--space-4);
  max-width: 28ch;
}

.philosophy blockquote em {
  font-style: italic;
  font-variation-settings: 'opsz' 100, 'SOFT' 100, 'WONK' 1;
  color: var(--color-clay);
}

.philosophy__cite {
  font-family: var(--font-mono);
  font-size: 0.78rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--color-muted);
}

/* About body */
.about-grid {
  display: grid;
  grid-template-columns: 1fr 2fr;
  gap: var(--space-6);
  margin-bottom: var(--space-7);
}

.about-grid h2 {
  font-size: clamp(1.4rem, 2.5vw, 1.9rem);
  font-variation-settings: 'opsz' 60, 'SOFT' 60;
}

/* =========================================================================
   CTA BAND
   ========================================================================= */

.cta-band {
  border-top: 1px solid var(--color-border);
  border-bottom: 1px solid var(--color-border);
  padding: var(--space-7) 0;
  text-align: center;
}

.cta-band h2 {
  max-width: 22ch;
  margin: 0 auto var(--space-3);
  font-variation-settings: 'opsz' 100, 'SOFT' 60;
}

.cta-band p {
  color: var(--color-muted);
  max-width: 42ch;
  margin: 0 auto var(--space-4);
}

/* =========================================================================
   FOOTER
   ========================================================================= */

.footer {
  padding: var(--space-6) 0 var(--space-4);
  color: var(--color-muted);
  font-size: 0.9rem;
}

.footer__inner {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-5);
  padding-bottom: var(--space-4);
  border-bottom: 1px solid var(--color-border);
}

.footer__brand p {
  margin-top: var(--space-2);
  max-width: 32ch;
  font-size: 0.92rem;
}

.footer__cols {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-4);
}

.footer__col h4 {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--color-ink);
  font-weight: 500;
  margin: 0 0 var(--space-3);
}

.footer__col ul { list-style: none; margin: 0; padding: 0; }
.footer__col li { margin-bottom: var(--space-2); }
.footer__col a { color: var(--color-muted); font-size: 0.92rem; }
.footer__col a:hover { color: var(--color-ink); }

.footer__bottom {
  padding-top: var(--space-3);
  display: flex;
  justify-content: space-between;
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--color-muted);
}

/* =========================================================================
   ENTRANCE ANIMATIONS
   ========================================================================= */

.reveal {
  opacity: 0;
  transform: translateY(14px);
  transition: opacity 700ms var(--easing), transform 700ms var(--easing);
}

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

@media (prefers-reduced-motion: reduce) {
  .reveal { opacity: 1; transform: none; transition: none; }
}

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

@media (max-width: 880px) {
  .nav__links {
    position: fixed;
    inset: 64px 0 auto 0;
    background: var(--color-paper);
    border-bottom: 1px solid var(--color-border);
    flex-direction: column;
    align-items: flex-start;
    gap: 0;
    padding: var(--space-3) var(--space-4) var(--space-4);
    transform: translateY(-12px);
    opacity: 0;
    pointer-events: none;
    transition: opacity 200ms var(--easing), transform 200ms var(--easing);
  }

  .nav__links.is-open {
    transform: translateY(0);
    opacity: 1;
    pointer-events: auto;
  }

  .nav__links li {
    width: 100%;
    border-bottom: 1px solid var(--color-border);
  }

  .nav__links li:last-child { border-bottom: none; }

  .nav__links a {
    display: block;
    padding: var(--space-3) 0;
    font-size: 1.05rem;
    color: var(--color-ink);
  }

  .nav__toggle { display: inline-flex; }

  .hero__grid {
    grid-template-columns: 1fr;
    gap: var(--space-5);
  }

  .hero__visual {
    order: -1;
    min-height: 240px;
  }

  .orbit { max-width: 280px; margin: 0 auto; }

  .pillars { grid-template-columns: 1fr; gap: var(--space-4); }

  .apps { grid-template-columns: 1fr; }

  .about-grid { grid-template-columns: 1fr; gap: var(--space-4); }

  .footer__inner { grid-template-columns: 1fr; }

  .footer__bottom { flex-direction: column; gap: var(--space-2); }

  .section { padding: var(--space-6) 0; }
  .hero { padding: var(--space-5) 0 var(--space-6); }
}

@media (max-width: 480px) {
  .container { padding: 0 var(--space-3); }
  .nav__inner { padding: var(--space-3); }
  .philosophy { padding: var(--space-5) var(--space-4); }
  .app-card { padding: var(--space-4); }
}