:root {
  --bg: #f6f7f9; --card: #ffffff; --ink: #1b1f24; --muted: #5d6673; --line: #dfe3e8;
  --brand: #1f5eff; --brand-ink: #ffffff; --soft: #eef3ff; --ok: #137a45;
  --space: 8px; --max: 1100px; color-scheme: light;
}
@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) {
    --bg: #0f1216; --card: #171b21; --ink: #e8ebef; --muted: #9aa3ae; --line: #2a3038;
    --brand: #5b8cff; --brand-ink: #0b0d10; --soft: #1a2333; --ok: #4cc38a; color-scheme: dark;
  }
}
* { box-sizing: border-box; }
body { margin: 0; background: var(--bg); color: var(--ink); font: 16px/1.55 system-ui, -apple-system, "Segoe UI", sans-serif; }
a { color: var(--brand); }
.wrap { max-width: var(--max); margin: 0 auto; padding: 0 16px; }
.nav { display: flex; justify-content: space-between; align-items: center; gap: calc(var(--space) * 2); padding: calc(var(--space) * 2) 0; }
.brand { font-weight: 700; font-size: 18px; color: var(--ink); text-decoration: none; }
.brand small { display: block; font-weight: 400; font-size: 12px; color: var(--muted); }
.nav-links { display: flex; gap: calc(var(--space) * 2); align-items: center; flex-wrap: wrap; }
.nav-links a:not(.btn) { color: var(--ink); text-decoration: none; }
.btn { display: inline-block; padding: 10px 18px; border-radius: 10px; border: 1px solid var(--brand); background: var(--brand); color: var(--brand-ink); text-decoration: none; font-weight: 600; font: inherit; cursor: pointer; text-align: center; }
.btn.ghost { background: transparent; color: var(--ink); border-color: var(--line); }
.hero { padding: calc(var(--space) * 8) 0 calc(var(--space) * 6); max-width: 760px; }
.hero h1 { font-size: clamp(30px, 5vw, 46px); line-height: 1.12; margin: 0 0 calc(var(--space) * 2); letter-spacing: -0.02em; }
.hero p { font-size: 18px; color: var(--muted); margin: 0 0 calc(var(--space) * 3); }
.cta { display: flex; gap: calc(var(--space) * 1.5); flex-wrap: wrap; }
section { padding: calc(var(--space) * 6) 0; border-top: 1px solid var(--line); }
h2 { font-size: 28px; margin: 0 0 calc(var(--space) * 1); letter-spacing: -0.01em; }
.lead { color: var(--muted); margin: 0 0 calc(var(--space) * 4); max-width: 680px; }
.grid3 { display: grid; grid-template-columns: repeat(3, 1fr); gap: calc(var(--space) * 2); align-items: stretch; }
.card { background: var(--card); border: 1px solid var(--line); border-radius: 14px; padding: calc(var(--space) * 3); display: flex; flex-direction: column; }
.card h3 { margin: 0 0 var(--space); font-size: 18px; }
.card p { margin: 0; color: var(--muted); }
.step { font-weight: 700; color: var(--brand); font-size: 14px; margin-bottom: var(--space); }
.plan.featured { border-color: var(--brand); box-shadow: 0 0 0 1px var(--brand); }
.plan { position: relative; }
.badge { position: absolute; top: -13px; left: calc(var(--space) * 3); font-size: 12px; font-weight: 700; color: var(--brand-ink); background: var(--brand); border-radius: 999px; padding: 2px 10px; line-height: 22px; }
.price { font-size: 38px; font-weight: 800; margin: var(--space) 0 0; letter-spacing: -0.02em; }
.price span { font-size: 15px; font-weight: 500; color: var(--muted); }
.plan ul { list-style: none; padding: 0; margin: calc(var(--space) * 2) 0 calc(var(--space) * 3); }
.plan li { padding: 4px 0 4px 24px; position: relative; }
.plan li::before { content: "\2713"; position: absolute; left: 0; color: var(--ok); font-weight: 700; }
.plan .btn { margin-top: auto; }
.note { color: var(--muted); font-size: 14px; margin-top: calc(var(--space) * 2); }
.faq { display: grid; grid-template-columns: repeat(2, 1fr); gap: calc(var(--space) * 2); }
.faq .card h3 { font-size: 16px; }
form.card { max-width: 720px; }
.fields { display: grid; grid-template-columns: repeat(2, 1fr); gap: calc(var(--space) * 2); }
.fields .full { grid-column: 1 / -1; }
label { display: flex; flex-direction: column; gap: 4px; font-size: 14px; font-weight: 600; }
label .opt { font-weight: 400; color: var(--muted); }
input, select, textarea { font: inherit; font-weight: 400; padding: 10px 12px; border: 1px solid var(--line); border-radius: 8px; background: var(--bg); color: var(--ink); }
textarea { min-height: 90px; resize: vertical; }
.hidden { position: absolute; left: -9999px; }
form .btn { margin-top: calc(var(--space) * 3); width: 100%; }
footer { padding: calc(var(--space) * 4) 0; color: var(--muted); font-size: 14px; border-top: 1px solid var(--line); }
@media (max-width: 820px) {
  .grid3, .faq, .fields { grid-template-columns: 1fr; }
  .hero { padding-top: calc(var(--space) * 4); }
}
.logos { display: flex; flex-wrap: wrap; gap: var(--space); margin: calc(var(--space) * 2) 0 0; padding: 0; list-style: none; }
.logos li { border: 1px solid var(--line); background: var(--card); border-radius: 999px; padding: 6px 14px; font-weight: 600; font-size: 14px; }
.plan > p { min-height: calc(1.55em * 2); }
@media (max-width: 820px) { .plan > p { min-height: 0; } }
@media (max-width: 820px) { #plans .grid3 { gap: calc(var(--space) * 4); } }
.hint { font-weight: 400; font-size: 12px; color: var(--muted); }
.form-msg { margin: calc(var(--space) * 2) 0 0; color: #b42318; font-size: 14px; }
.otp-veil { position: fixed; inset: 0; z-index: 50; background: rgba(8, 12, 20, 0.6); display: flex; align-items: center; justify-content: center; padding: 16px; }
.otp-veil[hidden] { display: none; }
.otp-card { width: 100%; max-width: 380px; background: var(--card); border: 1px solid var(--line); border-radius: 14px; padding: calc(var(--space) * 3); text-align: center; }
.otp-card h3 { margin: 0 0 var(--space); font-size: 18px; }
.otp-sub { margin: 0 0 calc(var(--space) * 2); color: var(--muted); font-size: 14px; }
.otp-code { width: 100%; text-align: center; letter-spacing: 0.5em; font-size: 24px; font-weight: 700; padding: 12px 8px 12px 20px; }
.otp-err { margin: var(--space) 0 0; color: #b42318; font-size: 14px; }
.otp-card .otp-ok { width: 100%; margin-top: calc(var(--space) * 2); }
.otp-foot { display: flex; justify-content: space-between; margin-top: calc(var(--space) * 2); }
.otp-foot button { background: none; border: 0; padding: 0; font: inherit; font-size: 14px; color: var(--brand); cursor: pointer; }
.otp-foot button:disabled { color: var(--muted); cursor: default; }
@media (prefers-color-scheme: dark) { :root:not([data-theme="light"]) .form-msg, :root:not([data-theme="light"]) .otp-err { color: #ff8a80; } }
@media (max-width: 600px) { .nav-links a:not(.btn) { display: none; } .brand { white-space: nowrap; } }