:root {
  color-scheme: dark;
  --about-bg: #07101e;
  --about-panel: #101d2d;
  --about-panel-soft: #132337;
  --about-text: #e8f0fb;
  --about-muted: #afbed0;
  --about-accent: #5edbf3;
  --about-border: rgba(184, 213, 238, .2);
}
* { box-sizing: border-box; }
html { min-width: 320px; scroll-behavior: smooth; }
body { margin: 0; background: radial-gradient(ellipse at 50% -20%, #17344c 0, transparent 55%), var(--about-bg); color: var(--about-text); font: 16px/1.7 system-ui, -apple-system, "Segoe UI", sans-serif; }
a { color: var(--about-accent); text-underline-offset: 3px; }
a:hover { text-decoration-thickness: 2px; }
a:focus-visible, button:focus-visible { outline: 3px solid #ffd166; outline-offset: 3px; }
.about-skip { position: absolute; z-index: 5; top: 8px; left: 8px; padding: 8px 12px; background: #fff; color: #111; transform: translateY(-160%); }
.about-skip:focus { transform: translateY(0); }
.about-site-header { display: flex; justify-content: space-between; align-items: center; gap: 16px; width: min(1040px, calc(100% - 32px)); min-height: 68px; margin: auto; border-bottom: 1px solid var(--about-border); }
.about-brand { color: var(--about-text); font-weight: 850; letter-spacing: .1em; text-decoration: none; }
.about-home { color: var(--about-muted); font-size: .9rem; text-align: right; }
.about-page { width: min(900px, calc(100% - 32px)); margin: 0 auto; padding: 32px 0 56px; }
.about-page-intro { max-width: 720px; padding: 24px 0 28px; }
.about-eyebrow { margin: 0; color: var(--about-accent); font-size: .78rem; font-weight: 750; letter-spacing: .04em; }
.about-page-intro h1 { margin: 8px 0 12px; font-size: clamp(2rem, 6vw, 3.3rem); line-height: 1.1; letter-spacing: -.03em; }
.about-page-intro > p:last-child { color: var(--about-muted); font-size: 1.08rem; }
.about-tabs { position: sticky; top: 0; z-index: 2; display: flex; gap: 8px; overflow-x: auto; padding: 10px; border: 1px solid var(--about-border); border-radius: 16px 16px 0 0; background: rgba(7, 16, 30, .96); backdrop-filter: blur(16px); scrollbar-width: thin; }
.about-tabs [role="tab"] { flex: 1 0 auto; min-height: 48px; padding: 10px 14px; border: 1px solid transparent; border-radius: 10px; background: transparent; color: var(--about-muted); font: inherit; font-weight: 700; cursor: pointer; }
.about-tabs [role="tab"]:hover { background: rgba(94, 219, 243, .08); color: var(--about-text); }
.about-tabs [role="tab"][aria-selected="true"] { border-color: rgba(94, 219, 243, .55); background: rgba(94, 219, 243, .14); color: #9becfa; box-shadow: inset 0 -2px 0 var(--about-accent); }
.about-panel { min-height: 420px; padding: clamp(20px, 5vw, 44px); border: 1px solid var(--about-border); border-top: 0; border-radius: 0 0 18px 18px; background: linear-gradient(145deg, rgba(19, 35, 55, .98), rgba(12, 25, 41, .98)); }
.about-panel[hidden] { display: none; }
.about-panel h2 { margin: 0 0 18px; font-size: clamp(1.5rem, 4vw, 2rem); line-height: 1.25; }
.about-panel h2 span, .about-panel h3 span { color: var(--about-accent); font-size: .7em; }
.about-panel h3 { margin-top: 30px; font-size: 1.15rem; }
.about-panel h4 { margin: 0; line-height: 1.45; }
.about-panel p, .about-panel li { color: var(--about-muted); }
.about-panel strong { color: var(--about-text); }
.about-lead { max-width: 720px; font-size: 1.1rem; }
.about-steps { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 14px; margin: 26px 0 38px; padding: 0; list-style: none; counter-reset: study-step; }
.about-steps li { display: flex; flex-direction: column; gap: 10px; padding: 20px; border: 1px solid var(--about-border); border-radius: 14px; background: var(--about-panel-soft); counter-increment: study-step; }
.about-steps li::before { content: "0" counter(study-step); color: var(--about-accent); font-size: .8rem; font-weight: 800; letter-spacing: .1em; }
.about-steps li strong { font-size: 1.05rem; }
.about-steps li > span { font-size: .92rem; }
.about-pa { color: #c1d0e1 !important; font-size: .88rem; }
.about-notice { margin: 28px 0; padding: 20px 22px; border: 1px solid rgba(94, 219, 243, .3); border-left: 4px solid var(--about-accent); border-radius: 12px; background: rgba(94, 219, 243, .06); }
.about-notice h3 { margin: 0 0 8px; }
.about-notice p:last-child { margin-bottom: 0; }
.about-feedback { padding-top: 16px; border-top: 1px solid var(--about-border); }
.about-founder-heading { display: flex; align-items: center; gap: 18px; }
.about-founder-heading h2 { margin: 4px 0; }
.about-founder-heading p:last-child { margin: 4px 0; }
.about-avatar { display: grid; flex: 0 0 60px; width: 60px; height: 60px; place-items: center; border: 1px solid var(--about-accent); border-radius: 16px; color: var(--about-accent); font-weight: 850; }
.about-panel blockquote { margin: 28px 0; padding: 4px 0 4px 20px; border-left: 3px solid var(--about-accent); color: var(--about-text); font-size: clamp(1.2rem, 3vw, 1.6rem); font-style: italic; }
.about-source { font-size: .88rem; }
.about-heritage { margin: 30px 0; padding: 20px; border: 1px solid var(--about-border); border-left: 4px solid #82d69d; border-radius: 12px; background: rgba(130, 214, 157, .05); }
.about-heritage h3 { margin-top: 0; }
.about-quotes, .about-products { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 14px; margin: 18px 0; }
.about-quotes article, .about-product { display: flex; flex-direction: column; padding: 18px; border: 1px solid var(--about-border); border-radius: 14px; background: var(--about-panel-soft); }
.about-quotes article p, .about-product p { font-size: .92rem; }
.about-quotes a { margin-top: auto; padding-top: 12px; font-size: .9rem; font-weight: 700; }
.about-quotes small, .about-button span { display: block; color: var(--about-muted); font-size: .75rem; font-weight: 500; }
.about-dedication { margin-top: 32px; padding-top: 22px; border-top: 1px solid var(--about-border); font-weight: 700; }
.about-funding { margin-top: 0; }
.about-products { grid-template-columns: repeat(2, minmax(0, 1fr)); margin: 24px 0; }
.about-product .about-eyebrow { margin: 0; }
.about-product h3 { margin: 4px 0 12px; font-size: 1.5rem; }
.about-button { display: inline-block; width: fit-content; min-height: 46px; margin-top: 12px; padding: 9px 14px; border: 1px solid var(--about-accent); border-radius: 10px; color: var(--about-accent); font-weight: 750; text-decoration: none; }
.about-button:hover { background: rgba(94, 219, 243, .12); }
.about-coffee { border-color: #ffdd00; color: #ffe56a; }
.about-actions { margin: 24px 0; }
.about-page-footer { display: flex; justify-content: center; gap: 12px; padding: 18px 16px 32px; color: var(--about-muted); font-size: .88rem; }
@media (max-width: 680px) {
  .about-site-header { min-height: 60px; }
  .about-brand { font-size: .85rem; }
  .about-home { font-size: .78rem; }
  .about-page { padding-top: 18px; }
  .about-page-intro { padding-top: 14px; }
  .about-steps, .about-quotes, .about-products { grid-template-columns: 1fr; }
  .about-steps li { padding: 17px; }
  .about-panel { min-height: 0; }
  .about-tabs { margin-inline: -4px; }
  .about-tabs [role="tab"] { font-size: .86rem; }
}
@media (prefers-reduced-motion: reduce) { html { scroll-behavior: auto; } }