/* CDN Traffic Control — оформление сайта */
:root {
  --brand: #0082c9;
  --brand-dark: #006aa3;
  --ink: #1c2b3a;
  --heading: #16253a;
  --muted: #6b7a8c;
  --border: #dbe3ec;
  --bg: #f4f7fb;
  --radius: 10px;
  --font: "Segoe UI", "Inter", Roboto, -apple-system, "Helvetica Neue", Arial, 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;
}
a { color: var(--brand); text-decoration: none; }
a:hover { color: var(--brand-dark); }
img { max-width: 100%; }

/* ---------- Логотип ---------- */
.brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-size: 21px;
  font-weight: 700;
  color: var(--ink);
  letter-spacing: -.2px;
}
.brand:hover { color: var(--ink); }
.brand .mark { width: 34px; height: 34px; flex: none; }

/* ---------- Кнопки ---------- */
.btn {
  display: inline-block;
  padding: 10px 22px;
  border-radius: 6px;
  font-size: 15px;
  font-weight: 600;
  border: 1px solid transparent;
  cursor: pointer;
  transition: background .15s ease;
}
.btn-primary { background: var(--brand); color: #fff; }
.btn-primary:hover { background: var(--brand-dark); color: #fff; }
.btn-ghost { background: transparent; color: var(--brand); border-color: var(--brand); }
.btn-ghost:hover { background: #eaf4fb; color: var(--brand-dark); }

/* ---------- Шапка сайта ---------- */
.site-header {
  background: #fff;
  border-bottom: 1px solid var(--border);
  position: sticky;
  top: 0;
  z-index: 20;
}
.header-inner {
  max-width: 1080px;
  margin: 0 auto;
  padding: 14px 22px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  flex-wrap: wrap;
}
.header-inner nav { display: flex; gap: 22px; }
.header-inner nav a {
  color: #46566b;
  font-weight: 500;
  font-size: 15px;
  padding: 6px 2px;
  border-bottom: 2px solid transparent;
}
.header-inner nav a:hover { color: var(--brand); }
.header-inner nav a.active { color: var(--brand); border-bottom-color: var(--brand); }
.header-actions { display: flex; gap: 10px; }

/* ---------- Страница входа ---------- */
.login-page {
  background:
    radial-gradient(1200px 500px at 85% -10%, rgba(0,130,201,.35), transparent 60%),
    radial-gradient(900px 420px at 10% 110%, rgba(53,81,125,.5), transparent 55%),
    linear-gradient(150deg, #1b2c4f 0%, #27406b 45%, #35517d 100%);
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}
.login-wrap {
  flex: 1;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: 40px 20px;
}
.login-card {
  width: 100%;
  max-width: 380px;
  background: rgba(255,255,255,.98);
  border-radius: 14px;
  padding: 36px 34px 30px;
  box-shadow: 0 24px 60px rgba(8,15,30,.45);
}
.login-brand { text-align: center; margin-bottom: 22px; }
.login-brand .mark { width: 56px; height: 56px; }
.login-brand h1 { margin: 10px 0 4px; font-size: 24px; color: var(--ink); }
.login-brand p { margin: 0; color: var(--muted); font-size: 14px; }
.login-card label { display: block; margin: 14px 0 6px; font-size: 13px; color: #46566b; font-weight: 600; }
.login-card input {
  width: 100%;
  padding: 11px 13px;
  border: 1px solid var(--border);
  border-radius: 6px;
  font-size: 15px;
  color: var(--ink);
  background: #fff;
  outline: none;
}
.login-card input:focus { border-color: var(--brand); box-shadow: 0 0 0 3px rgba(0,130,201,.15); }
.login-card .btn { width: 100%; margin-top: 20px; padding: 12px; font-size: 15px; }
.login-error {
  display: none;
  margin-top: 14px;
  background: #fdecea;
  color: #b42318;
  border: 1px solid #f5c6c0;
  border-radius: 6px;
  font-size: 13px;
  padding: 9px 12px;
}
.login-error.show { display: block; }
.login-hint { margin-top: 12px; font-size: 12px; color: #8b97a6; text-align: center; }
.login-links {
  margin-top: 18px;
  display: flex;
  justify-content: space-between;
  font-size: 13px;
}
.login-footer { text-align: center; padding: 24px; color: rgba(255,255,255,.75); font-size: 13px; }
.login-footer a { color: rgba(255,255,255,.85); }


/* ---------- Контентные страницы ---------- */
.page { max-width: 1080px; margin: 0 auto; padding: 40px 22px 70px; }
.hero { text-align: center; padding: 30px 0 40px; }
.hero h1 { font-size: 38px; margin: 0 0 14px; color: var(--heading); }
.hero p { font-size: 18px; color: var(--muted); max-width: 740px; margin: 0 auto; }
.hero .cta { margin-top: 26px; display: flex; gap: 12px; justify-content: center; flex-wrap: wrap; }
.lead { font-size: 17px; color: var(--muted); max-width: 820px; }

.cards { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; margin-top: 30px; }
.card {
  background: #fff;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 24px;
  box-shadow: 0 4px 14px rgba(28,43,58,.05);
}
.card .icon { width: 44px; height: 44px; border-radius: 10px; background: #eaf4fb; display: flex; align-items: center; justify-content: center; margin-bottom: 14px; }
.card h3 { margin: 0 0 8px; font-size: 17px; }
.card p { margin: 0; color: var(--muted); font-size: 14px; }

.section-title { font-size: 26px; margin: 46px 0 6px; color: var(--heading); }
.section-sub { color: var(--muted); margin: 0 0 10px; }

/* ---------- Таблица характеристик ---------- */
.specs {
  display: grid;
  grid-template-columns: 280px 1fr;
  background: #fff;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
  margin-top: 20px;
}
.specs dt, .specs dd { margin: 0; padding: 13px 20px; border-bottom: 1px solid var(--border); font-size: 14px; }
.specs dt { background: #f8fafd; color: #3c4c60; font-weight: 600; }
.specs dd { color: var(--muted); }
.specs > *:nth-last-child(-n+2) { border-bottom: 0; }

/* ---------- Списки ---------- */
.list-check { list-style: none; padding: 0; margin: 16px 0 0; display: grid; grid-template-columns: repeat(2, 1fr); gap: 10px 30px; color: var(--muted); font-size: 14px; }
.list-check li::before { content: "\2713"; color: var(--brand); font-weight: 700; margin-right: 9px; }
.contact-list { list-style: none; padding: 0; margin: 14px 0 0; color: var(--muted); font-size: 15px; }
.contact-list li { margin-bottom: 8px; }
.contact-list strong { color: var(--ink); font-weight: 600; display: inline-block; min-width: 132px; }

/* ---------- Футер ---------- */
.site-footer {
  border-top: 1px solid var(--border);
  background: #fff;
  padding: 26px 22px;
  text-align: center;
  color: var(--muted);
  font-size: 13px;
}
.site-footer nav { margin-top: 8px; display: flex; gap: 18px; justify-content: center; flex-wrap: wrap; }
.site-footer nav a { color: var(--muted); }
.site-footer nav a:hover { color: var(--brand); }

/* ---------- 404 ---------- */
.notfound { text-align: center; padding: 90px 20px; }
.notfound h1 { font-size: 64px; margin: 0; color: var(--brand); }
.notfound p { color: var(--muted); font-size: 17px; }
.notfound .btn { margin-top: 18px; }

/* ---------- Адаптив ---------- */
@media (max-width: 860px) {
  .cards { grid-template-columns: 1fr 1fr; }
  .hero h1 { font-size: 31px; }
  .specs { grid-template-columns: 1fr; }
}
@media (max-width: 560px) {
  .cards { grid-template-columns: 1fr; }
  .list-check { grid-template-columns: 1fr; }
  .header-inner { justify-content: center; }
  .hero h1 { font-size: 26px; }
}