:root {
  --bg: #f6f8f7;
  --surface: #ffffff;
  --ink: #1d2a27;
  --muted: #5d6d68;
  --line: #dfe6e3;
  --brand: #1f6b5c;
  --brand-ink: #ffffff;
  --brand-dark: #1f3d36;
  --brand-soft: #e6f1ee;
  --accent: #e8a33d;
  --danger: #b3412e;
  --danger-soft: #fbece8;
  --ok-soft: #e6f4ea;
  --radius: 14px;
  --shadow: 0 1px 2px rgba(20, 40, 35, 0.05), 0 6px 20px rgba(20, 40, 35, 0.06);
  --font: "Inter", system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
}

* { box-sizing: border-box; }
html, body { margin: 0; }
body { font-family: var(--font); color: var(--ink); background: var(--bg); line-height: 1.55; font-size: 16px; -webkit-font-smoothing: antialiased; }
a { color: var(--brand); }
h1, h2, h3 { line-height: 1.2; margin: 0 0 0.5em; letter-spacing: -0.01em; }
h1 { font-size: clamp(1.8rem, 3.2vw, 2.6rem); }
h2 { font-size: 1.4rem; }
h3 { font-size: 1.1rem; }
p { margin: 0 0 1em; }
.muted { color: var(--muted); }
.wrap { max-width: 1120px; margin: 0 auto; padding: 0 20px; }

/* Header */
#site-header { background: var(--surface); border-bottom: 1px solid var(--line); }
.header-row { display: flex; align-items: center; justify-content: space-between; gap: 16px; min-height: 64px; }
.brand { display: inline-flex; align-items: center; gap: 10px; font-weight: 700; color: var(--brand-dark); text-decoration: none; font-size: 1.05rem; }
.brand-mark { display: inline-grid; place-items: center; width: 34px; height: 34px; border-radius: 10px; background: var(--brand); color: var(--brand-ink); font-size: 0.8rem; font-weight: 800; letter-spacing: 0.02em; }
.header-nav { display: flex; align-items: center; gap: 14px; }
.nav-link { color: var(--ink); text-decoration: none; font-weight: 500; }
.nav-link:hover { color: var(--brand); }

/* Buttons */
.btn { display: inline-flex; align-items: center; justify-content: center; gap: 8px; border: 1px solid transparent; border-radius: 10px; padding: 11px 18px; font: 600 0.95rem/1 var(--font); cursor: pointer; text-decoration: none; transition: background 0.15s, border-color 0.15s; }
.btn-primary { background: var(--brand); color: var(--brand-ink); }
.btn-primary:hover { background: var(--brand-dark); }
.btn-ghost { background: var(--surface); color: var(--ink); border-color: var(--line); }
.btn-ghost:hover { border-color: var(--brand); color: var(--brand); }
.btn-sm { padding: 8px 14px; font-size: 0.88rem; }
.btn-block { width: 100%; }
.btn[disabled] { opacity: 0.6; cursor: progress; }

/* Sections */
.hero { padding: 64px 0 40px; }
.hero p.lead { font-size: 1.15rem; color: var(--muted); max-width: 640px; }
.hero-actions { display: flex; gap: 12px; flex-wrap: wrap; margin-top: 24px; }
.section { padding: 32px 0 56px; }
.grid { display: grid; gap: 18px; }
.grid-3 { grid-template-columns: repeat(auto-fit, minmax(260px, 1fr)); }
.card { background: var(--surface); border: 1px solid var(--line); border-radius: var(--radius); padding: 22px; box-shadow: var(--shadow); }

/* Pricing */
.plan-card { display: flex; flex-direction: column; gap: 14px; }
.plan-card.is-featured { border-color: var(--brand); box-shadow: 0 0 0 2px var(--brand-soft), var(--shadow); }
.plan-name { font-size: 1.15rem; font-weight: 700; margin: 0; overflow-wrap: anywhere; }
.plan-price { font-size: 2rem; font-weight: 800; letter-spacing: -0.02em; }
.plan-billing { color: var(--muted); font-weight: 500; font-size: 0.95rem; margin-left: 4px; }
.perks { list-style: none; padding: 0; margin: 0; display: grid; gap: 8px; }
.perks li { padding-left: 26px; position: relative; }
.perks li::before { content: "✓"; position: absolute; left: 0; top: 0; color: var(--brand); font-weight: 800; }
.plan-cta { margin-top: auto; }
.badge { display: inline-block; font-size: 0.75rem; font-weight: 700; padding: 4px 10px; border-radius: 999px; background: var(--brand-soft); color: var(--brand-dark); }
.skeleton { background: linear-gradient(90deg, #edf1ef 25%, #f6f8f7 50%, #edf1ef 75%); background-size: 200% 100%; animation: shimmer 1.2s infinite; border-radius: var(--radius); min-height: 320px; }
@keyframes shimmer { to { background-position: -200% 0; } }

/* Forms */
.auth-wrap { max-width: 440px; margin: 48px auto; padding: 0 20px; }
.tabs { display: grid; grid-template-columns: 1fr 1fr; gap: 6px; background: var(--brand-soft); padding: 5px; border-radius: 12px; margin-bottom: 20px; }
.tab { border: 0; background: transparent; padding: 10px; border-radius: 9px; font: 600 0.95rem var(--font); color: var(--muted); cursor: pointer; }
.tab.is-active { background: var(--surface); color: var(--ink); box-shadow: var(--shadow); }
.field { display: grid; gap: 6px; margin-bottom: 14px; }
.field label { font-weight: 600; font-size: 0.9rem; }
.field input { font: inherit; padding: 11px 12px; border: 1px solid var(--line); border-radius: 10px; background: var(--surface); color: var(--ink); }
.field input:focus { outline: 2px solid var(--brand-soft); border-color: var(--brand); }
.row-2 { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; }
.notice { padding: 12px 14px; border-radius: 10px; margin-bottom: 14px; font-size: 0.95rem; }
.notice-error { background: var(--danger-soft); color: var(--danger); }
.notice-ok { background: var(--ok-soft); color: #22603a; }
.notice-info { background: var(--brand-soft); color: var(--brand-dark); }
[hidden] { display: none !important; }

/* Members area */
.app-shell { display: grid; grid-template-columns: 260px 1fr; min-height: 100vh; }
#side-menu { background: var(--surface); border-right: 1px solid var(--line); padding: 20px 14px; position: sticky; top: 0; height: 100vh; overflow-y: auto; }
.brand-side { margin: 0 8px 22px; }
.side-nav { display: grid; gap: 2px; }
.side-link { display: flex; align-items: center; justify-content: space-between; gap: 8px; padding: 10px 12px; border-radius: 9px; color: var(--ink); text-decoration: none; font-weight: 500; font-size: 0.95rem; }
.side-link:hover { background: var(--brand-soft); }
.side-link.is-active { background: var(--brand-soft); color: var(--brand-dark); font-weight: 700; }
.side-link.is-locked { color: var(--muted); }
.side-button { border: 0; background: transparent; font: inherit; text-align: left; cursor: pointer; width: 100%; }
.side-rule { border: 0; border-top: 1px solid var(--line); margin: 10px 4px; }
.lock { font-size: 0.8rem; }
.main { padding: 32px clamp(20px, 4vw, 48px); max-width: 1100px; }
.app-tile { display: flex; flex-direction: column; gap: 8px; text-decoration: none; color: inherit; }
.app-tile:hover { border-color: var(--brand); }
.app-tile.is-locked { opacity: 0.75; }
.app-tile .tile-foot { margin-top: auto; padding-top: 8px; font-weight: 600; color: var(--brand); font-size: 0.92rem; }
.app-tile.is-locked .tile-foot { color: var(--muted); }
.kv { display: grid; grid-template-columns: 160px 1fr; gap: 10px 16px; margin: 0; }
.kv dt { color: var(--muted); }
.kv dd { margin: 0; font-weight: 600; overflow-wrap: anywhere; }

.footer { border-top: 1px solid var(--line); padding: 24px 0; color: var(--muted); font-size: 0.9rem; }

@media (max-width: 760px) {
  .app-shell { grid-template-columns: 1fr; }
  #side-menu { position: static; height: auto; border-right: 0; border-bottom: 1px solid var(--line); }
  .header-nav .nav-link:first-child { display: none; }
  .kv { grid-template-columns: 1fr; gap: 2px; }
  .kv dd { margin-bottom: 10px; }
  .row-2 { grid-template-columns: 1fr; }
}