/* Stonebase — the editorial language of the app, on the web.
   Ink on paper, hairlines instead of cards, large light display type,
   Space Mono micro-labels, a bracket button, and the accent on one thing. */

:root {
  --sans: "Instrument Sans", ui-sans-serif, system-ui, sans-serif;
  --mono: "Space Mono", ui-monospace, "SF Mono", monospace;
  --measure: 1180px;
  --gutter: clamp(20px, 4vw, 48px);
}

/* Palettes — copied from BrandTone.palette(dark:) in the app. */
[data-tone="clay"][data-mode="light"] { --paper:#ECEADF; --surface:#F3F1E7; --ink:#5A1F1F; --ink2:#7A5650; --ink3:#A6948B; --accent:#AD4528; --mark:#D9765A; --g1:#E8977A; --g2:#C9624F; --g3:#F0C2A2; }
[data-tone="clay"][data-mode="dark"]  { --paper:#341A19; --surface:#42221F; --ink:#EFE9DC; --ink2:#CBB6AB; --ink3:#93766E; --accent:#F0A285; --mark:#F0A285; --g1:#C9624F; --g2:#8A3B30; --g3:#F0A285; }
[data-tone="moss"][data-mode="light"] { --paper:#E5E7DA; --surface:#EEF0E5; --ink:#1F3324; --ink2:#4E5F50; --ink3:#8C9A8C; --accent:#526B3A; --mark:#6E8F4E; --g1:#9DB57A; --g2:#5E7F55; --g3:#C9D6A8; }
[data-tone="moss"][data-mode="dark"]  { --paper:#1A251C; --surface:#26342A; --ink:#E6EADC; --ink2:#B2BEAD; --ink3:#7A8A7B; --accent:#A9C77F; --mark:#A9C77F; --g1:#5E7F55; --g2:#2F4A33; --g3:#A9C77F; }
[data-tone="mist"][data-mode="light"] { --paper:#E3E4E2; --surface:#EDEEEC; --ink:#262E36; --ink2:#56606A; --ink3:#949BA1; --accent:#835747; --mark:#B07F6E; --g1:#C9A79A; --g2:#8FA3B4; --g3:#DDD2C8; }
[data-tone="mist"][data-mode="dark"]  { --paper:#1E2328; --surface:#2B3238; --ink:#E8E8E4; --ink2:#B3BAC0; --ink3:#7B858D; --accent:#D9A897; --mark:#D9A897; --g1:#5D7385; --g2:#3A4B5A; --g3:#D9A897; }
[data-tone="dusk"][data-mode="light"] { --paper:#E7E3E6; --surface:#F0ECEF; --ink:#3A2E44; --ink2:#655870; --ink3:#9D93A3; --accent:#9B465B; --mark:#C2788A; --g1:#D79AA8; --g2:#9C88B4; --g3:#E6C3C6; }
[data-tone="dusk"][data-mode="dark"]  { --paper:#241E2A; --surface:#332B3A; --ink:#ECE6EE; --ink2:#C0B5C6; --ink3:#887C8F; --accent:#E59AAA; --mark:#E59AAA; --g1:#7A5E8C; --g2:#4A3A5A; --g3:#E59AAA; }

*, *::before, *::after { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; scroll-behavior: smooth; }
body {
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  font: 400 17px/1.5 var(--sans);
  -webkit-font-smoothing: antialiased;
  transition: background-color .35s ease, color .35s ease;
}
img { display: block; max-width: 100%; }
a { color: inherit; }
::selection { background: var(--accent); color: var(--paper); }

.wrap { max-width: var(--measure); margin: 0 auto; padding: 0 var(--gutter); }

/* ---------- Type ---------- */

.label {
  font: 400 11px/1.4 var(--mono);
  letter-spacing: .12em;
  text-transform: uppercase;
  color: var(--ink2);
}
.display {
  font-family: var(--sans);
  font-weight: 350;
  letter-spacing: -0.04em;
  line-height: 0.98;
  margin: 0;
}
.d-xl { font-size: clamp(56px, 10.5vw, 148px); }
.d-l  { font-size: clamp(40px, 6.2vw, 84px); }
.d-m  { font-size: clamp(28px, 3.4vw, 44px); letter-spacing: -0.03em; line-height: 1.05; }
.lede { font-size: clamp(18px, 1.6vw, 21px); color: var(--ink2); max-width: 34ch; margin: 0; }
.body { color: var(--ink2); max-width: 44ch; margin: 0; }

/* ---------- Rules ---------- */

.rule { height: 1px; background: var(--ink3); opacity: .55; border: 0; margin: 0; }
.rule.strong { background: var(--ink); opacity: 1; }

/* ---------- Header ---------- */

.top {
  position: sticky; top: 0; z-index: 10;
  background: color-mix(in srgb, var(--paper) 88%, transparent);
  backdrop-filter: saturate(1.2) blur(14px);
  -webkit-backdrop-filter: saturate(1.2) blur(14px);
  transition: background-color .35s ease;
}
.top .wrap { display: flex; align-items: center; justify-content: space-between; gap: 24px; height: 64px; }
.brand { display: flex; align-items: center; gap: 10px; text-decoration: none; }
.brand svg { width: 22px; height: 22px; fill: var(--ink); }
.brand span { font-size: 18px; letter-spacing: -0.02em; }
.top nav { display: flex; gap: 22px; }
.top nav a { text-decoration: none; }
.top nav a:hover { color: var(--ink); }

/* ---------- Theme switcher (TextTabs) ---------- */

.switcher { display: flex; align-items: center; gap: 18px; flex-wrap: wrap; }
.tabs { display: flex; gap: 14px; }
.tabs button {
  all: unset; cursor: pointer;
  font: 400 11px/1 var(--mono); letter-spacing: .12em; text-transform: uppercase;
  color: var(--ink3); padding: 8px 0 6px;
  border-bottom: 1px solid transparent;
}
.tabs button:hover { color: var(--ink2); }
.tabs button[aria-pressed="true"] { color: var(--ink); border-bottom-color: var(--ink); }
.tabs button:focus-visible { outline: 1px solid var(--ink); outline-offset: 4px; }
.swatch { display: inline-block; width: 7px; height: 7px; border-radius: 50%; margin-right: 7px; vertical-align: 1px; }

/* ---------- Buttons ---------- */

.bracket {
  display: inline-flex; align-items: center; gap: 14px;
  font: 400 12px/1 var(--mono); letter-spacing: .14em; text-transform: uppercase;
  color: var(--ink); text-decoration: none;
  border: 1px solid var(--ink); padding: 15px 18px;
  transition: background-color .2s ease, color .2s ease;
}
.bracket::after { content: "+"; }
.bracket:hover { background: var(--ink); color: var(--paper); }
.link {
  font: 400 12px/1 var(--mono); letter-spacing: .12em; text-transform: uppercase;
  text-decoration: underline; text-underline-offset: 4px; color: var(--ink);
}

/* ---------- Hero ---------- */

.hero { position: relative; overflow: hidden; }
.hero::before { /* the one aurora field on the page */
  content: ""; position: absolute; inset: auto -10% -35% -10%; height: 70%;
  background:
    radial-gradient(40% 60% at 22% 70%, var(--g1), transparent 70%),
    radial-gradient(45% 60% at 60% 85%, var(--g2), transparent 70%),
    radial-gradient(35% 55% at 88% 70%, var(--g3), transparent 70%);
  filter: blur(40px); opacity: .55; pointer-events: none;
  transition: opacity .35s ease;
}
.hero .wrap { position: relative; display: grid; grid-template-columns: 1.15fr .85fr; gap: 48px; align-items: end; padding-top: 72px; padding-bottom: 96px; }
.hero .meta { display: flex; gap: 18px; align-items: center; margin-bottom: 36px; }
.hero .meta .dot { width: 7px; height: 7px; border-radius: 50%; background: var(--mark); display: inline-block; }
.hero .lede { margin-top: 32px; }
.hero .actions { display: flex; gap: 28px; align-items: center; margin-top: 40px; flex-wrap: wrap; }
.hero .phone {
  width: min(100%, 320px);
  border-radius: 44px;
  border: 1px solid var(--ink);
  overflow: hidden;
  background: var(--surface);
  transition: border-color .35s ease;
}
.phone img { width: 100%; aspect-ratio: 1206 / 2622; object-fit: cover; }
.phone.sm { width: min(100%, 250px); border-radius: 36px; }

/* ---------- Stats strip (EditorialStat) ---------- */

.stats { display: grid; grid-template-columns: repeat(4, 1fr); }
.stat { padding: 28px 0 32px; }
.stat + .stat { padding-left: 28px; border-left: 1px solid color-mix(in srgb, var(--ink3) 55%, transparent); }
.stat .v { font-size: clamp(30px, 3.4vw, 46px); font-weight: 350; letter-spacing: -0.03em; line-height: 1; margin-top: 12px; }
.stat .s { font-size: 14px; color: var(--ink2); margin-top: 6px; }

/* ---------- Feature sections ---------- */

.feature { padding: 112px 0; }
.feature .head { display: flex; justify-content: space-between; align-items: baseline; padding-bottom: 14px; }
.feature .grid { display: grid; grid-template-columns: 1fr 1fr; gap: 64px; margin-top: 48px; align-items: start; }
.feature.flip .grid > .copy { order: 2; }
.feature .copy .body { margin-top: 24px; }
.feature .shots { display: flex; gap: 20px; justify-content: center; align-items: flex-start; }
.feature .shots .phone:nth-child(2) { margin-top: 64px; }

.rows { list-style: none; margin: 36px 0 0; padding: 0; border-top: 1px solid color-mix(in srgb, var(--ink3) 55%, transparent); }
.rows li { display: grid; grid-template-columns: 1fr auto; gap: 16px; align-items: baseline; padding: 16px 0; border-bottom: 1px solid color-mix(in srgb, var(--ink3) 55%, transparent); }
.rows .t { font-size: 18px; letter-spacing: -0.01em; }
.rows .d { grid-column: 1 / -1; font-size: 15px; color: var(--ink2); margin-top: -6px; }

/* ---------- Themes ---------- */

.tones { display: grid; grid-template-columns: repeat(4, 1fr); gap: 0; margin-top: 48px; border-top: 1px solid var(--ink); }
.tone { all: unset; cursor: pointer; padding: 22px 22px 26px 0; display: block; }
.tone + .tone { padding-left: 22px; border-left: 1px solid color-mix(in srgb, var(--ink3) 55%, transparent); }
.tone .chips { display: flex; gap: 6px; margin: 18px 0 14px; }
.tone .chips i { width: 28px; height: 28px; border-radius: 50%; display: block; border: 1px solid color-mix(in srgb, var(--ink3) 55%, transparent); }
.tone .n { font-size: 28px; font-weight: 350; letter-spacing: -0.02em; }
.tone .p { font-size: 14px; color: var(--ink2); margin-top: 4px; }
.tone[aria-pressed="true"] .n { text-decoration: underline; text-decoration-thickness: 1px; text-underline-offset: 6px; }
.tone:focus-visible { outline: 1px solid var(--ink); outline-offset: -1px; }

.gallery { display: grid; grid-template-columns: repeat(4, 1fr); gap: 20px; margin-top: 56px; }
.gallery .phone { width: 100%; }

/* ---------- Principles ---------- */

.principles { display: grid; grid-template-columns: repeat(3, 1fr); margin-top: 48px; border-top: 1px solid var(--ink); }
.principle { padding: 24px 28px 8px 0; }
.principle + .principle { padding-left: 28px; border-left: 1px solid color-mix(in srgb, var(--ink3) 55%, transparent); }
.principle h3 { font-size: 24px; font-weight: 400; letter-spacing: -0.02em; margin: 14px 0 10px; }
.principle p { color: var(--ink2); margin: 0; font-size: 16px; }

/* ---------- Closing + footer ---------- */

.closing { padding: 128px 0 112px; }
.closing .actions { margin-top: 40px; display: flex; gap: 28px; align-items: center; flex-wrap: wrap; }
footer .wrap { display: flex; justify-content: space-between; align-items: center; gap: 24px; padding-top: 22px; padding-bottom: 40px; flex-wrap: wrap; }

/* ---------- Responsive ---------- */

@media (max-width: 960px) {
  .top nav { display: none; }
  .hero .wrap, .feature .grid { grid-template-columns: 1fr; }
  .feature.flip .grid > .copy { order: 0; }
  .hero .wrap { padding-top: 48px; }
  .stats { grid-template-columns: repeat(2, 1fr); }
  .stat:nth-child(3) { padding-left: 0; border-left: 0; }
  .tones { grid-template-columns: repeat(2, 1fr); }
  .tone:nth-child(3) { padding-left: 0; border-left: 0; }
  .gallery { grid-template-columns: repeat(2, 1fr); }
  .principles { grid-template-columns: 1fr; }
  .principle + .principle { padding-left: 0; border-left: 0; border-top: 1px solid color-mix(in srgb, var(--ink3) 55%, transparent); }
  .feature { padding: 80px 0; }
}
@media (max-width: 560px) {
  .top .switcher .tabs.tone-tabs { display: none; }
  .feature .shots .phone.sm:nth-child(2) { display: none; }
}
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  * { transition: none !important; }
}

/* Grid and flex children may shrink below their content's width. */
.hero .wrap > *, .feature .grid > *, .stats > *, .tones > *, .principles > * { min-width: 0; }
@media (max-width: 560px) {
  .top .wrap { gap: 12px; }
  .brand span { display: none; }
  .stats { grid-template-columns: 1fr 1fr; }
  .stat + .stat { padding-left: 16px; }
  .stat:nth-child(3) { padding-left: 0; }
  .stat .v { font-size: 26px; }
  .feature .head span:last-child { display: none; }
  .tone { padding-right: 12px; }
  .tone + .tone { padding-left: 12px; }
  .tone:nth-child(3) { padding-left: 0; }
}

/* Breathing room between the hero and the figures strip. */
.hero + .wrap { margin-top: clamp(40px, 6vw, 88px); }
/* Let the aurora fade out before the hero ends instead of being clipped by it. */
.hero::before {
  inset: auto -10% 0 -10%;
  -webkit-mask-image: linear-gradient(to bottom, transparent, #000 35%, #000 55%, transparent);
          mask-image: linear-gradient(to bottom, transparent, #000 35%, #000 55%, transparent);
}