/* sanibha.com: plain CSS, system fonts, no scripts, no third-party requests. */

:root {
  --paper: #F4F6F8;
  --surface: #FFFFFF;
  --ink: #101828;
  --slate: #475467;
  --line: #D5DAE1;
  --lamp: #FFB400;
  --link: #0B5CAD;
  --font: ui-sans-serif, system-ui, -apple-system, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  --measure: 68ch;
  --gutter: 20px;
}

@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) {
    --paper: #0D1117;
    --surface: #151B23;
    --ink: #EAEEF2;
    --slate: #9AA6B5;
    --line: #2A3441;
    --link: #6CB2FF;
  }
}

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

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

body {
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  font-family: var(--font);
  font-size: 1.0625rem;
  line-height: 1.6;
  display: flex;
  flex-direction: column;
  min-height: 100vh;
}

main { flex: 1 0 auto; }

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

a { color: var(--link); text-underline-offset: 0.18em; text-decoration-thickness: 1px; }
a:hover { text-decoration-thickness: 2px; }

:focus-visible { outline: 3px solid var(--ink); outline-offset: 3px; border-radius: 3px; }

.skip {
  position: absolute; left: var(--gutter); top: -100px;
  background: var(--ink); color: var(--paper);
  padding: 10px 16px; border-radius: 8px; z-index: 10;
}
.skip:focus { top: 12px; }

.wrap { width: 100%; max-width: 1080px; margin: 0 auto; padding: 0 var(--gutter); }

/* ---------- header ---------- */
.top { padding: 22px 0; }
.bar { display: flex; flex-wrap: wrap; align-items: center; justify-content: space-between; gap: 10px 28px; }

.mark {
  display: inline-flex; align-items: center; gap: 10px;
  font-size: 1.5rem; font-weight: 800; letter-spacing: -0.04em;
  color: var(--ink); text-decoration: none;
}
.dot { width: 14px; height: 14px; border-radius: 50%; background: var(--lamp); flex: none; }

.top nav { display: flex; flex-wrap: wrap; gap: 4px 22px; }
.top nav a {
  color: var(--slate); text-decoration: none; font-weight: 550;
  padding: 6px 0; border-bottom: 2px solid transparent;
}
.top nav a:hover { color: var(--ink); }
.top nav a[aria-current="page"] { color: var(--ink); border-bottom-color: var(--lamp); }

/* ---------- hero ---------- */
.hero { padding: clamp(48px, 9vw, 112px) 0 clamp(48px, 7vw, 88px); }

h1 {
  margin: 0;
  font-size: clamp(2.5rem, 8.2vw, 5.5rem);
  line-height: 1;
  font-weight: 800;
  letter-spacing: -0.045em;
  max-width: 13ch;
  text-wrap: balance;
}

.lede { font-size: clamp(1.1rem, 2.2vw, 1.3rem); line-height: 1.55; color: var(--slate); max-width: 50ch; margin: 28px 0 0; }

.split .lede { margin-top: 0; }

.cta { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 32px; }

.btn {
  display: inline-block; padding: 12px 22px; border-radius: 10px;
  background: var(--ink); color: var(--paper);
  font-weight: 650; text-decoration: none; border: 2px solid var(--ink);
}
.btn:hover { background: var(--lamp); border-color: var(--lamp); color: #101828; text-decoration: none; }
.btn.alt { background: transparent; color: var(--ink); border-color: var(--line); }
.btn.alt:hover { background: transparent; border-color: var(--ink); color: var(--ink); }

/* ---------- app tiles (iOS-style squircles) ---------- */
.tile {
  display: grid; place-items: center; width: 72px; height: 72px; flex: none;
  border-radius: 22.37%;
}
.tile svg { width: 100%; height: 100%; }
.tile-ink { background: #101828; box-shadow: inset 0 0 0 1px rgba(255,255,255,0.12); }
.tile-lamp { background: var(--lamp); }
.tile-empty { border: 2px dashed var(--line); background: transparent; }

.shelf { list-style: none; margin: clamp(40px, 6vw, 72px) 0 0; padding: 0; display: flex; flex-wrap: wrap; gap: 28px 36px; }
.shelf li { display: grid; gap: 2px; justify-items: start; }
.shelf .tile { margin-bottom: 10px; }
.shelf-name { font-weight: 650; line-height: 1.3; }
.shelf-status { color: var(--slate); font-size: 0.9375rem; }
.shelf .more .shelf-name { color: var(--slate); font-weight: 500; }

/* ---------- sections ---------- */
.section { padding: clamp(40px, 6vw, 80px) 0; border-top: 1px solid var(--line); }

h2 { font-size: clamp(1.5rem, 3.4vw, 2.1rem); line-height: 1.15; letter-spacing: -0.03em; margin: 0; font-weight: 750; }
h3 { font-size: 1.125rem; line-height: 1.3; margin: 0 0 6px; font-weight: 700; letter-spacing: -0.01em; }

.split { display: grid; gap: 32px; }
@media (min-width: 820px) { .split { grid-template-columns: 1fr 2fr; gap: 64px; } }

.principles { display: grid; gap: 32px 48px; margin: 0; padding: 0; list-style: none; }
@media (min-width: 640px) { .principles { grid-template-columns: 1fr 1fr; } }
.principles p { margin: 0; color: var(--slate); }

/* ---------- inner pages ---------- */
.pagehead { padding: clamp(36px, 6vw, 72px) 0 clamp(20px, 3vw, 32px); }
.pagehead h1 { font-size: clamp(2.1rem, 6vw, 3.5rem); max-width: 20ch; }
.pagehead .lede { margin-top: 18px; }

.prose { max-width: var(--measure); padding-bottom: clamp(48px, 8vw, 96px); }
.prose h2 { margin-top: 2.6rem; font-size: clamp(1.3rem, 2.6vw, 1.6rem); }
.prose h3 { margin-top: 1.6rem; }
.prose p, .prose ul, .prose ol { margin: 0.9rem 0 0; }
.prose li { margin-top: 0.4rem; }
.prose ul, .prose ol { padding-left: 1.3rem; }
.prose .fine { margin-top: 0.6rem; }
.prose .cta { margin-top: 22px; }

.fine { font-size: 0.9375rem; color: var(--slate); margin: 6px 0 0; }

.facts { margin: 1.4rem 0 0; display: grid; gap: 0; }
.facts div { display: grid; gap: 2px; padding: 14px 0; border-top: 1px solid var(--line); }
.facts div:last-child { border-bottom: 1px solid var(--line); }
.facts dt { color: var(--slate); font-size: 0.9375rem; }
.facts dd { margin: 0; font-weight: 550; }
@media (min-width: 640px) { .facts div { grid-template-columns: 14rem 1fr; gap: 24px; } }

.big-mail { font-size: clamp(1.4rem, 4.6vw, 2.4rem); font-weight: 750; letter-spacing: -0.03em; word-break: break-word; }

.callout { margin-top: 1.6rem; padding: 18px 20px; background: var(--surface); border: 1px solid var(--line); border-left: 4px solid var(--lamp); border-radius: 10px; }
.callout p { margin: 0; }
.callout p + p { margin-top: 0.6rem; }

/* ---------- apps list ---------- */
.apps { list-style: none; margin: 0; padding: 0 0 clamp(48px, 8vw, 96px); display: grid; gap: 0; }
.app { display: grid; grid-template-columns: auto 1fr; gap: 6px 20px; align-items: center; padding: 22px 0; border-top: 1px solid var(--line); }
.app:last-child { border-bottom: 1px solid var(--line); }
.app h2 { font-size: 1.3rem; letter-spacing: -0.02em; }
.app p { margin: 4px 0 0; color: var(--slate); }
.app .status { grid-column: 2; margin: 0; font-size: 0.9375rem; font-weight: 600; color: var(--ink); }
@media (min-width: 720px) {
  .app { grid-template-columns: auto 1fr auto; }
  .app .status { grid-column: auto; }
}

/* ---------- footer ---------- */
.foot { margin-top: 48px; background: var(--surface); border-top: 1px solid var(--line); padding: 40px 0 28px; }
.foot-grid { display: grid; gap: 28px; }
@media (min-width: 760px) { .foot-grid { grid-template-columns: 2fr 1fr 1fr; gap: 48px; } }
.foot-name { margin: 0; font-weight: 700; }
.foot-head { margin: 0 0 8px; font-weight: 700; }
.foot-links { list-style: none; padding: 0; margin: 0; display: grid; gap: 6px; }
.foot-base { margin-top: 32px; }
.foot-base .fine { margin: 0; padding-top: 20px; border-top: 1px solid var(--line); }

@media (prefers-reduced-motion: reduce) { * { transition: none !important; scroll-behavior: auto !important; } }

@media print {
  .top nav, .skip, .cta, .foot-links { display: none; }
  body { background: #fff; color: #000; font-size: 11pt; }
  a { color: #000; }
}