/* attnd.app public site — hand-written, no frameworks or web fonts. */
:root {
  --attnd: #431f86; --attnd-dark: #32166a; --attnd-mid: #7b4fd6; --attnd-soft: #efe9fa; --ink: #15171c; --muted: #5f6672; --line: #e5e7eb;
  --bg: #ffffff; --soft: #f6f7f9; --blue: #431f86; --ok: #198754; --bad: #c62828;
  --font: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  --mono: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
  --wrap: 1120px; --radius: 14px;
}
*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }
body { margin: 0; font: 400 17px/1.6 var(--font); color: var(--ink); background: var(--bg); }
img { max-width: 100%; height: auto; display: block; }
a { color: var(--blue); }
h1, h2, h3 { line-height: 1.15; margin: 0 0 .6em; letter-spacing: -.02em; }
h1 { font-size: clamp(2rem, 4.5vw, 3.2rem); font-weight: 800; }
h2 { font-size: clamp(1.6rem, 3vw, 2.2rem); font-weight: 800; }
h3 { font-size: 1.15rem; font-weight: 700; }
p { margin: 0 0 1em; }
.wrap { max-width: var(--wrap); margin: 0 auto; padding: 0 20px; }
.muted { color: var(--muted); } .small { font-size: .875rem; } .center { text-align: center; }
.mono { font-family: var(--mono); }
.icon { width: 1.25em; height: 1.25em; flex-shrink: 0; }
.hidden { display: none !important; }

/* Buttons */
.btn { display: inline-flex; align-items: center; justify-content: center; gap: .5rem; padding: .8rem 1.4rem;
  font: 600 1rem var(--font); border-radius: 999px; border: 2px solid transparent; cursor: pointer; text-decoration: none; }
.btn-primary { background: var(--attnd); color: #fff; } .btn-primary:hover { background: var(--attnd-dark); color: #fff; }
.btn-ghost { border-color: currentColor; color: inherit; background: transparent; }
.btn-ghost:hover { background: rgba(255,255,255,.12); }
.btn-dark { background: var(--ink); color: #fff; } .btn-green { background: #0f7a3d; color: #fff; }
.btn-small { padding: .45rem .9rem; font-size: .9rem; }
.btn:disabled { opacity: .6; cursor: default; }

/* Nav */
.nav { position: sticky; top: 0; z-index: 10; background: rgba(255,255,255,.92); backdrop-filter: saturate(1.4) blur(10px);
  border-bottom: 1px solid var(--line); }
.nav .wrap { display: flex; align-items: center; height: 64px; gap: 1rem; }
.brand { font-weight: 800; font-size: 1.35rem; color: var(--ink); text-decoration: none; letter-spacing: -.03em; }
.brand span { color: var(--attnd); }
.nav-links { display: flex; gap: 1.4rem; margin-left: auto; align-items: center; }
.nav-links a { color: var(--ink); text-decoration: none; font-weight: 500; font-size: .95rem; }
.nav-links a:hover { color: var(--attnd); }
.nav-menu { margin-left: auto; display: none; }
.nav-menu summary { list-style: none; cursor: pointer; padding: .4rem .7rem; border: 1px solid var(--line); border-radius: 8px; font-weight: 600; }
.nav-menu summary::-webkit-details-marker { display: none; }
.nav-menu[open] .nav-links { display: flex; }
@media (max-width: 820px) {
  .nav > .wrap > .nav-links { display: none; }
  .nav-menu { display: block; }
  .nav-menu .nav-links { position: absolute; right: 20px; top: 60px; flex-direction: column; align-items: flex-start;
    background: #fff; border: 1px solid var(--line); border-radius: 12px; padding: 1rem 1.25rem; box-shadow: 0 10px 30px rgba(0,0,0,.1); display: none; }
}

/* Hero */
.hero { background: radial-gradient(circle at 80% 10%, #ffb08f 0, transparent 40%),
  linear-gradient(135deg, #431f86 0%, #7b4fd6 100%); color: #fff; padding: 72px 0 80px; overflow: hidden; }
.hero .wrap { display: grid; grid-template-columns: 1.2fr .8fr; gap: 48px; align-items: center; }
.hero p.lead { font-size: 1.2rem; opacity: .95; max-width: 34em; }
.hero .actions { display: flex; flex-wrap: wrap; gap: .8rem; margin-top: 1.6rem; }
@media (max-width: 860px) { .hero .wrap { grid-template-columns: 1fr; } .hero .phone { margin: 0 auto; } }

/* CSS phone frame */
.phone { width: min(280px, 70vw); aspect-ratio: 9 / 19.5; border-radius: 44px; background: #111; padding: 12px;
  box-shadow: 0 30px 60px rgba(0,0,0,.35), inset 0 0 0 2px #333; position: relative; }
.phone::before { content: ""; position: absolute; top: 20px; left: 50%; transform: translateX(-50%); width: 30%; height: 22px;
  border-radius: 12px; background: #111; z-index: 1; }
.phone .screen { width: 100%; height: 100%; border-radius: 34px; overflow: hidden; background: #fff; }
.phone .screen img { width: 100%; height: 100%; object-fit: cover; object-position: top; }

/* Sections */
section { padding: 80px 0; }
.section-head { text-align: center; max-width: 720px; margin: 0 auto 48px; }
.band { background: var(--soft); }
.dark { background: var(--ink); color: #fff; }
.badges { display: flex; justify-content: center; flex-wrap: wrap; gap: 16px; margin-top: 1rem; }
.badges img { height: 52px; width: auto; }

.grid { display: grid; gap: 24px; }
.grid-3 { grid-template-columns: repeat(3, 1fr); } .grid-2 { grid-template-columns: repeat(2, 1fr); }
@media (max-width: 860px) { .grid-3, .grid-2 { grid-template-columns: 1fr; } }
.features-layout { display: grid; grid-template-columns: .7fr 1.3fr; gap: 56px; align-items: center; }
@media (max-width: 860px) { .features-layout { grid-template-columns: 1fr; } .features-layout .phone { margin: 0 auto; } }
.feature { padding: 4px 0; }
.feature .icon { width: 2.2rem; height: 2.2rem; color: var(--attnd); margin-bottom: .6rem; }
.step { background: #fff; border: 1px solid var(--line); border-radius: var(--radius); padding: 24px; }
.step .num { display: inline-grid; place-items: center; width: 2rem; height: 2rem; border-radius: 50%; background: var(--attnd);
  color: #fff; font-weight: 800; margin-bottom: .8rem; }

/* Try-it card */
.card { background: #fff; border: 1px solid var(--line); border-radius: var(--radius); padding: 28px; max-width: 680px; margin: 0 auto;
  box-shadow: 0 6px 24px rgba(0,0,0,.05); }
.field { display: flex; gap: .6rem; flex-wrap: wrap; }
.field input { flex: 1 1 260px; padding: .85rem 1rem; font: inherit; border: 1px solid #cfd4dc; border-radius: 999px; }
.field input:focus { outline: 3px solid rgba(255,90,31,.25); border-color: var(--attnd); }
.spinner { width: 44px; height: 44px; border: 4px solid #ffd2c2; border-top-color: var(--attnd); border-radius: 50%;
  margin: 8px auto 16px; animation: spin .8s linear infinite; }
@keyframes spin { to { transform: rotate(360deg); } }
.result-code { font: 800 2.2rem var(--mono); color: var(--attnd); letter-spacing: .06em; }
.qr { width: 180px; height: 180px; margin: 12px auto; border-radius: 10px; }
.alert { padding: .8rem 1rem; border-radius: 10px; background: #fdecec; color: #7a1f1f; border: 1px solid #f6c4c4; }
.success-icon { width: 3rem; height: 3rem; color: var(--ok); margin: 0 auto .6rem; }
hr { border: 0; border-top: 1px solid var(--line); margin: 1.6rem 0; }

/* CTA + footer */
.cta { text-align: center; }
.cta .btn { margin-top: .6rem; }
footer { padding: 32px 0; border-top: 1px solid var(--line); font-size: .9rem; color: var(--muted); }
footer .wrap { display: flex; flex-wrap: wrap; gap: 1rem; justify-content: space-between; align-items: center; }
footer a { color: var(--muted); }

/* Simple pages (privacy, join) */
.page { max-width: 760px; margin: 0 auto; padding: 56px 20px 80px; }
.page h2 { font-size: 1.3rem; margin-top: 2rem; }
.join { min-height: 100vh; display: grid; place-items: center; background: var(--soft); padding: 24px; }
.join .card { text-align: center; width: 100%; max-width: 440px; }
.join .stack { display: grid; gap: 12px; margin: 1.4rem 0; }