:root {
  --ink: #0f1f33;
  --ink-soft: #46566b;
  --line: #d9e1ea;
  --bg: #f6f8fb;
  --card: #ffffff;
  --sky: #1f6feb;
  --sky-dark: #1655b8;
  --sky-tint: #e8f0fd;
  --coral: #d64545;
  --coral-tint: #fdeeee;
  --green: #1e7f4f;
  --green-tint: #e7f5ee;
  --radius: 14px;
  --shadow: 0 1px 2px rgba(15, 31, 51, .06), 0 6px 20px rgba(15, 31, 51, .06);
  --font: "Inter", system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
}
* { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }
body { margin: 0; font-family: var(--font); color: var(--ink); background: var(--bg); line-height: 1.55; font-size: 16px; }
a { color: var(--sky); }
img { max-width: 100%; }
.wrap { max-width: 1080px; margin: 0 auto; padding: 0 20px; }
.narrow { max-width: 720px; }

/* header */
.site-header { background: var(--card); border-bottom: 1px solid var(--line); position: sticky; top: 0; z-index: 10; }
.site-header .wrap { display: flex; align-items: center; gap: 16px; height: 64px; }
.brand { display: flex; align-items: center; gap: 10px; font-weight: 700; font-size: 18px; color: var(--ink); text-decoration: none; }
.brand svg { width: 28px; height: 28px; }
.nav { margin-left: auto; display: flex; align-items: center; gap: 18px; }
.nav a { color: var(--ink-soft); text-decoration: none; font-size: 15px; }
.nav a:hover { color: var(--ink); }
.nav .hide-sm { display: inline; }
@media (max-width: 640px) { .nav .hide-sm { display: none; } }
#member-menu { display: flex; align-items: center; gap: 10px; min-width: 96px; justify-content: flex-end; }
.skeleton { background: linear-gradient(90deg, #e9eef4, #f4f7fa, #e9eef4); background-size: 200% 100%; animation: sk 1.2s infinite; border-radius: 8px; }
@keyframes sk { to { background-position: -200% 0; } }

/* buttons */
.btn { display: inline-flex; align-items: center; justify-content: center; gap: 8px; padding: 11px 18px; border-radius: 10px; border: 1px solid transparent; font: inherit; font-weight: 600; font-size: 15px; cursor: pointer; text-decoration: none; transition: background .15s; }
.btn-primary { background: var(--sky); color: #fff; }
.btn-primary:hover { background: var(--sky-dark); }
.btn-ghost { background: transparent; color: var(--ink); border-color: var(--line); }
.btn-ghost:hover { background: var(--bg); }
.btn-danger { background: var(--coral); color: #fff; }
.btn-sm { padding: 7px 12px; font-size: 14px; }
.btn[disabled] { opacity: .6; cursor: default; }

/* emergency strip */
.emergency { background: var(--coral-tint); border-bottom: 1px solid #f3cccc; color: #7a1f1f; font-size: 14px; }
.emergency .wrap { padding-top: 8px; padding-bottom: 8px; display: flex; flex-wrap: wrap; gap: 6px 14px; }
.emergency strong { color: var(--coral); }

/* hero */
.hero { padding: 72px 0 56px; background: radial-gradient(1200px 400px at 80% -10%, var(--sky-tint), transparent); }
.hero h1 { font-size: clamp(32px, 5vw, 52px); line-height: 1.1; margin: 0 0 16px; letter-spacing: -0.02em; max-width: 14ch; }
.hero p.lead { font-size: 19px; color: var(--ink-soft); max-width: 56ch; margin: 0 0 28px; }
.hero .ctas { display: flex; flex-wrap: wrap; gap: 12px; }

section { padding: 56px 0; }
section h2 { font-size: 28px; letter-spacing: -0.01em; margin: 0 0 8px; }
section p.sub { color: var(--ink-soft); margin: 0 0 28px; max-width: 62ch; }

.grid { display: grid; gap: 16px; }
.g3 { grid-template-columns: repeat(3, 1fr); }
.g2 { grid-template-columns: repeat(2, 1fr); }
@media (max-width: 860px) { .g3 { grid-template-columns: 1fr; } .g2 { grid-template-columns: 1fr; } }

.card { background: var(--card); border: 1px solid var(--line); border-radius: var(--radius); padding: 22px; box-shadow: var(--shadow); }
.card h3 { margin: 0 0 6px; font-size: 18px; }
.card p { margin: 0; color: var(--ink-soft); }
.step-num { width: 32px; height: 32px; border-radius: 50%; background: var(--sky-tint); color: var(--sky); font-weight: 700; display: grid; place-items: center; margin-bottom: 12px; }

.ladder { display: grid; grid-template-columns: repeat(4, 1fr); gap: 12px; }
@media (max-width: 860px) { .ladder { grid-template-columns: 1fr; } }
.ladder .card { box-shadow: none; }
.ladder .tag { font-size: 12px; font-weight: 700; text-transform: uppercase; letter-spacing: .06em; color: var(--ink-soft); }
.ladder .card.threat { border-color: var(--sky); background: var(--sky-tint); }

.privacy { background: var(--card); border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); }
.callout { border-left: 4px solid var(--sky); background: var(--sky-tint); padding: 14px 16px; border-radius: 8px; }
.callout.warn { border-left-color: var(--coral); background: var(--coral-tint); }
.callout.ok { border-left-color: var(--green); background: var(--green-tint); }

/* plans */
.plans { display: grid; grid-template-columns: repeat(auto-fit, minmax(260px, 1fr)); gap: 16px; }
.plan { display: flex; flex-direction: column; gap: 10px; }
.plan .price { font-size: 32px; font-weight: 700; }
.plan .billing { color: var(--ink-soft); font-size: 15px; font-weight: 500; margin-left: 4px; }
.plan ul { padding-left: 18px; margin: 4px 0 8px; color: var(--ink-soft); }
.plan .cta { margin-top: auto; }
.plan .err { color: var(--coral); font-size: 14px; }

/* forms */
form .row { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; }
@media (max-width: 640px) { form .row { grid-template-columns: 1fr; } }
label { display: block; font-size: 14px; font-weight: 600; margin: 0 0 6px; }
.field { margin-bottom: 14px; }
.hint { font-size: 13px; color: var(--ink-soft); font-weight: 400; }
input[type=text], input[type=email], input[type=tel], input[type=password], input[type=date], select, textarea {
  width: 100%; padding: 10px 12px; border: 1px solid var(--line); border-radius: 10px; font: inherit; background: #fff; color: var(--ink);
}
input:focus, select:focus, textarea:focus { outline: 2px solid var(--sky-tint); border-color: var(--sky); }
fieldset { border: 1px solid var(--line); border-radius: var(--radius); padding: 16px 18px 6px; margin: 0 0 16px; background: #fff; }
legend { font-weight: 700; padding: 0 6px; }
.check { display: flex; gap: 10px; align-items: flex-start; font-weight: 400; }
.check input { margin-top: 4px; width: 18px; height: 18px; }
.status { font-size: 14px; margin-top: 10px; }
.status.err { color: var(--coral); }
.status.ok { color: var(--green); }

/* member area */
.area-head { padding: 36px 0 8px; }
.area-head h1 { margin: 0; font-size: 30px; }
.tabs { display: flex; gap: 6px; flex-wrap: wrap; border-bottom: 1px solid var(--line); margin: 20px 0 24px; }
.tabs button { background: none; border: 0; padding: 10px 14px; font: inherit; font-weight: 600; color: var(--ink-soft); cursor: pointer; border-bottom: 2px solid transparent; }
.tabs button[aria-selected=true] { color: var(--ink); border-bottom-color: var(--sky); }
.panel[hidden] { display: none; }
.help-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(220px, 1fr)); gap: 14px; }
.help-grid .card { display: flex; flex-direction: column; gap: 8px; }
.help-grid .card .btn { margin-top: auto; }
.contact-list { list-style: none; padding: 0; margin: 0 0 16px; }
.contact-list li { display: flex; justify-content: space-between; gap: 12px; padding: 10px 0; border-bottom: 1px solid var(--line); }
.contact-list li span:first-child { color: var(--ink-soft); }
.placeholder-note { font-size: 12px; color: #8a5a00; background: #fff6e0; border: 1px solid #f1dfae; padding: 2px 8px; border-radius: 999px; }

.auth-card { max-width: 440px; margin: 48px auto; }
.toggle { display: flex; gap: 4px; background: var(--bg); padding: 4px; border-radius: 10px; margin-bottom: 18px; }
.toggle button { flex: 1; border: 0; background: none; padding: 8px; border-radius: 8px; font: inherit; font-weight: 600; cursor: pointer; color: var(--ink-soft); }
.toggle button[aria-pressed=true] { background: #fff; color: var(--ink); box-shadow: var(--shadow); }

footer { padding: 32px 0 48px; color: var(--ink-soft); font-size: 14px; border-top: 1px solid var(--line); background: var(--card); }
footer .wrap { display: flex; flex-wrap: wrap; gap: 8px 24px; justify-content: space-between; }