/* Bundled fonts (SIL Open Font License 1.1, see fonts/OFL-*.txt). Latin subset only. */
@font-face {
  font-family: "IBM Plex Sans";
  font-style: normal;
  font-weight: 400;
  font-display: swap;
  src: url("./fonts/ibm-plex-sans-latin-400-normal.woff2") format("woff2");
}
@font-face {
  font-family: "IBM Plex Sans";
  font-style: normal;
  font-weight: 500;
  font-display: swap;
  src: url("./fonts/ibm-plex-sans-latin-500-normal.woff2") format("woff2");
}
@font-face {
  font-family: "IBM Plex Sans";
  font-style: normal;
  font-weight: 600;
  font-display: swap;
  src: url("./fonts/ibm-plex-sans-latin-600-normal.woff2") format("woff2");
}
@font-face {
  font-family: "IBM Plex Sans";
  font-style: normal;
  font-weight: 700;
  font-display: swap;
  src: url("./fonts/ibm-plex-sans-latin-700-normal.woff2") format("woff2");
}
@font-face {
  font-family: "Newsreader";
  font-style: normal;
  font-weight: 500;
  font-display: swap;
  src: url("./fonts/newsreader-latin-500-normal.woff2") format("woff2");
}
@font-face {
  font-family: "Newsreader";
  font-style: normal;
  font-weight: 600;
  font-display: swap;
  src: url("./fonts/newsreader-latin-600-normal.woff2") format("woff2");
}

:root {
  --ink: #0f1419;
  --paper: #e8efe6;
  --panel: #f4f7f2;
  --line: rgba(15, 20, 25, 0.14);
  --muted: #5a675f;
  --accent: #c43b5a;
  --accent-deep: #8f2740;
  --glow: rgba(196, 59, 90, 0.18);
  --display: "Newsreader", "Times New Roman", serif;
  --sans: "IBM Plex Sans", "Segoe UI", sans-serif;
  --shadow: 0 18px 40px rgba(15, 20, 25, 0.12);
}

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

html {
  color-scheme: light;
}

body {
  margin: 0;
  min-height: 100vh;
  font-family: var(--sans);
  color: var(--ink);
  background:
    radial-gradient(900px 420px at 12% -10%, var(--glow), transparent 55%),
    linear-gradient(160deg, #d7e2d6 0%, var(--paper) 42%, #dce6e8 100%);
  -webkit-font-smoothing: antialiased;
}

.skip-link {
  position: absolute;
  left: 1rem;
  top: 1rem;
  z-index: 20;
  transform: translateY(-160%);
  padding: 0.7rem 1rem;
  border-radius: 0.7rem;
  background: var(--accent);
  color: #fff;
  font-weight: 600;
  text-decoration: none;
}

.skip-link:focus {
  transform: none;
}

.stage {
  width: min(720px, calc(100% - 2rem));
  margin: 0 auto;
  padding: 1.5rem 0 3rem;
}

.top {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 0.75rem 1.25rem;
  margin-bottom: 2rem;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 0.75rem;
  color: inherit;
  text-decoration: none;
}

.brand img {
  border-radius: 0.85rem;
  box-shadow: 0 0 0 1px var(--line);
}

.brand strong {
  display: block;
  font-size: 1.05rem;
  letter-spacing: -0.02em;
}

.brand small {
  display: block;
  margin-top: 0.1rem;
  color: var(--muted);
  font-size: 0.78rem;
  letter-spacing: 0.04em;
  text-transform: uppercase;
}

.eyebrow {
  margin: 0;
  color: var(--muted);
  font-size: 0.82rem;
}

.hero {
  margin-bottom: 1.75rem;
}

.kicker {
  margin: 0 0 0.65rem;
  color: var(--accent-deep);
  font-size: 0.78rem;
  font-weight: 600;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

.hero h1 {
  margin: 0;
  max-width: 14ch;
  font-family: var(--display);
  font-size: clamp(2.2rem, 6vw, 3.35rem);
  font-weight: 600;
  line-height: 1.05;
  letter-spacing: -0.03em;
}

.lede {
  margin: 1rem 0 0;
  max-width: 38rem;
  color: var(--muted);
  font-size: 1.05rem;
  line-height: 1.55;
}

.tabs {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 0.35rem;
  padding: 0.35rem;
  border: 1px solid var(--line);
  border-radius: 1rem;
  background: rgba(255, 255, 255, 0.45);
  backdrop-filter: blur(8px);
}

.tab {
  appearance: none;
  border: 0;
  border-radius: 0.75rem;
  min-height: 44px;
  padding: 0.65rem 0.5rem;
  background: transparent;
  color: var(--muted);
  font: inherit;
  font-size: 0.92rem;
  font-weight: 600;
  cursor: pointer;
  transition:
    background 0.18s ease,
    color 0.18s ease,
    box-shadow 0.18s ease;
}

.tab:hover {
  color: var(--ink);
}

.tab.is-active {
  background: var(--ink);
  color: #f6faf5;
  box-shadow: var(--shadow);
}

.panel-shell {
  margin-top: 0.85rem;
  padding: 1.5rem 1.35rem 1.6rem;
  border: 1px solid var(--line);
  border-radius: 1.15rem;
  background: var(--panel);
  box-shadow: var(--shadow);
  min-height: 17rem;
}

.panel[hidden] {
  display: none;
}

.panel h2 {
  margin: 0 0 0.75rem;
  font-family: var(--display);
  font-size: 1.65rem;
  font-weight: 600;
  letter-spacing: -0.02em;
}

.panel p {
  margin: 0 0 0.9rem;
  color: #2c3731;
  line-height: 1.55;
}

.bullets {
  margin: 0 0 1rem;
  padding-left: 1.15rem;
  color: #2c3731;
  line-height: 1.55;
}

.bullets li + li {
  margin-top: 0.45rem;
}

.fine {
  margin-top: 1rem !important;
  color: var(--muted) !important;
  font-size: 0.88rem;
}

.fine code {
  font-size: 0.84em;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 44px;
  margin-top: 0.35rem;
  padding: 0.7rem 1.15rem;
  border-radius: 999px;
  font-weight: 700;
  text-decoration: none;
  transition:
    transform 0.15s ease,
    background 0.15s ease,
    box-shadow 0.15s ease;
}

.btn:hover {
  transform: translateY(-1px);
}

.btn-primary {
  background: var(--accent);
  color: #fff;
  box-shadow: 0 10px 24px var(--glow);
}

.btn-primary:hover {
  background: var(--accent-deep);
}

.btn-secondary {
  background: var(--ink);
  color: #f6faf5;
}

.foot {
  margin-top: 1.5rem;
  color: var(--muted);
  font-size: 0.82rem;
  text-align: center;
}

.foot p {
  margin: 0;
}

:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 3px;
}

@media (max-width: 520px) {
  .tabs {
    grid-template-columns: 1fr;
  }

  .panel-shell {
    padding: 1.25rem 1.05rem 1.35rem;
  }
}

@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }

  .tab,
  .btn {
    transition: none;
  }

  .btn:hover {
    transform: none;
  }
}