:root {
  color-scheme: light;
  --bg: #f3f6fb;
  --line: #dce5f1;
  --text: #172b49;
  --muted: #667892;
  --cyan: #1d63d8;
  --blue: #1769ee;
  --indigo: #4e46df;
  --surface: #fff;
  --soft: #f7f9fd;
  --shadow: 0 8px 26px rgba(28, 53, 92, .055);
}

body {
  background: var(--bg);
  color: var(--text);
  font: 14px/1.5 Inter, ui-sans-serif, system-ui, -apple-system, "Segoe UI", sans-serif;
}
a { transition: color .15s ease, background-color .15s ease, border-color .15s ease; }
h1, h2, h3 { color: #172b49; letter-spacing: -.035em; text-wrap: balance; }

.topbar {
  height: 66px;
  padding: 0 max(28px, calc((100vw - 1320px)/2));
  gap: 30px;
  border-bottom: 1px solid #e4eaf4;
  background: #fff;
  box-shadow: 0 2px 12px rgba(20, 49, 94, .045);
  backdrop-filter: none;
}
.brand { flex: none; color: #1c57bc; font-size: 22px; font-weight: 850; letter-spacing: -.055em; }
.brand span { color: #0ea5bd; }
nav { gap: 3px; min-width: 0; }
nav a, .link-button {
  display: inline-flex;
  align-items: center;
  min-height: 36px;
  padding: 7px 11px;
  border-radius: 8px;
  color: #607089;
  font-size: 12px;
  font-weight: 650;
  white-space: nowrap;
}
nav a:hover, .link-button:hover { color: #235cc5; background: #edf3ff; }
nav a.active, nav a.active:hover {
  color: #fff;
  background: var(--indigo);
  box-shadow: 0 5px 12px rgba(78, 70, 223, .18);
}
nav form { margin-left: 2px; }

.container { width: min(1320px, calc(100% - 56px)); margin: 36px auto 80px; }
.eyebrow { color: #326cc6; font-size: 10px; font-weight: 850; letter-spacing: .13em; }
.muted { color: var(--muted); }
.page-heading { align-items: center; margin-bottom: 22px; }
.page-heading h1 { margin: 4px 0 0; font-size: clamp(27px, 3vw, 34px); line-height: 1.15; }
.page-heading .muted { margin-top: 7px; font-size: 14px; }
.section-title { margin: 0 0 16px; }
.section-title h2 { margin: 3px 0 0; font-size: 23px; }

.hero {
  position: relative;
  min-height: 196px;
  padding: 34px 38px;
  overflow: hidden;
  border: 0;
  border-radius: 13px;
  background: linear-gradient(108deg, #153e6c 0%, #145776 56%, #078478 100%);
  box-shadow: 0 12px 28px rgba(19, 67, 108, .13);
}
.hero::after {
  content: "";
  position: absolute;
  right: -80px;
  top: -195px;
  width: 520px;
  height: 520px;
  border: 1px solid rgba(255,255,255,.13);
  border-radius: 50%;
  box-shadow: 0 0 0 60px rgba(255,255,255,.035), 0 0 0 125px rgba(255,255,255,.025);
  pointer-events: none;
}
.hero > * { position: relative; z-index: 1; }
.hero .eyebrow { color: #b9eaf5; }
.hero h1 { margin: 6px 0; color: #fff; font-size: clamp(34px, 4vw, 46px); line-height: 1.1; }
.hero p { margin: 5px 0 0; color: #d9edfa; font-size: 15px; }
.hero-actions { gap: 9px; }

.button {
  min-height: 40px;
  padding: 9px 15px;
  border: 1px solid var(--indigo);
  border-radius: 8px;
  background: var(--indigo);
  color: #fff;
  font-size: 12px;
  font-weight: 750;
  box-shadow: none;
}
.button:hover { background: #3d35c8; border-color: #3d35c8; filter: none; }
.button.secondary {
  border-color: #cbd8e9;
  background: #fff;
  color: #315274;
}
.button.secondary:hover { border-color: #8facd6; background: #f5f8ff; color: #245cc4; }
.hero .button { border-color: #fff; background: #fff; color: #174c83; }
.hero .button:hover { background: #e9f6ff; }
.hero .button.secondary { border-color: rgba(255,255,255,.48); background: rgba(255,255,255,.1); color: #fff; }
.hero .button.secondary:hover { background: rgba(255,255,255,.2); }
.button:focus-visible, a:focus-visible, summary:focus-visible, .text-button:focus-visible, .link-button:focus-visible {
  outline: 3px solid #6db8ff;
  outline-offset: 2px;
}

.summary-grid { gap: 14px; margin: 20px 0 37px; }
.summary {
  min-height: 93px;
  padding: 17px 21px;
  border: 1px solid var(--line);
  border-radius: 12px;
  background: var(--surface);
  box-shadow: var(--shadow);
}
.summary span, .detail span { color: var(--muted); font-size: 11px; font-weight: 650; }
.summary strong { margin-top: 3px; color: #196af1; font-size: 29px; font-weight: 800; line-height: 1.2; letter-spacing: -.05em; }

.sites-grid { grid-template-columns: repeat(2, minmax(0,1fr)); gap: 15px; }
.site-card {
  padding: 22px;
  border: 1px solid var(--line);
  border-radius: 12px;
  background: var(--surface);
  box-shadow: var(--shadow);
}
.site-card h2 { margin: 16px 0 16px; font-size: 21px; line-height: 1.2; font-weight: 760; }
.status, .site-type { padding: 4px 9px; background: #e9f7ef; color: #16805b; font-size: 10px; font-weight: 750; }
.site-type { background: #eaf1ff; color: #285fc2; }
.details { gap: 9px; }
.detail { padding: 11px 12px; border: 1px solid #eaf0f8; border-radius: 8px; background: var(--soft); }
.detail strong { color: #233c60; font-size: 13px; }
.detail code { color: #536b89; }
.card-actions { flex-wrap: wrap; gap: 13px; }
.text-link, .text-button { color: #2468cb; }
.text-link:hover, .text-button:hover { color: #124ca9; text-decoration: underline; }
.danger { color: #c54961; }
.danger:hover { color: #a42f49; }
.delete-form { margin-top: 14px; }

.add-panel {
  border: 1px solid var(--line);
  border-radius: 12px;
  background: var(--surface);
  box-shadow: var(--shadow);
}
.add-panel summary { color: #24466d; font-weight: 750; }
.add-panel summary::marker { color: #416fe4; }
.add-panel .small { line-height: 1.55; }
input, select {
  border: 1px solid #cdd9ea;
  border-radius: 7px;
  background: #fff;
  color: var(--text);
}
input:focus, select:focus { outline: 3px solid #d6e7ff; border-color: #5286e5; }
input::placeholder { color: #93a2b8; }
.site-form label, .auth-card label, .user-form > label:not(.check-item) { color: #46607e; font-size: 12px; font-weight: 680; }
.notice { border: 1px solid #bfe2d2; border-radius: 8px; background: #eaf8f0; color: #176447; }
.error { border: 1px solid #edbfc7; background: #fff1f3; color: #a73b53; }

.auth-container { margin: 10vh auto; }
.auth-card {
  padding: 34px;
  border: 1px solid var(--line);
  border-radius: 14px;
  background: var(--surface);
  box-shadow: 0 18px 55px rgba(25, 57, 106, .12);
}
.auth-card::before { content: ""; display: block; width: 48px; height: 5px; margin-bottom: 24px; border-radius: 9px; background: linear-gradient(90deg, #4664e7, #0fa2b7); }
.auth-card h1 { font-size: 32px; }
.container > .auth-card { width: min(620px, 100%); margin: 0 auto; }
.empty { border: 1px dashed #b9cbe3; border-radius: 12px; background: #fff; color: var(--muted); }

.site-tabs { gap: 8px; }
.site-tab { border: 1px solid var(--line); border-radius: 8px; background: #fff; color: #4e6584; font-size: 12px; font-weight: 650; }
.site-tab.active { border-color: var(--indigo); background: var(--indigo); color: #fff; }
.preview-heading { border: 1px solid var(--line); border-radius: 11px 11px 0 0; background: #fff; }
.preview-heading h2 { color: var(--text); }
.preview-heading p { color: var(--muted); }
.frame-wrap { border-color: var(--line); border-radius: 0 0 11px 11px; }

.user-form fieldset { border-color: var(--line); background: var(--soft); }
.user-form legend { color: #58708f; font-weight: 750; }
.check-item { border-color: #dce6f3; background: #fff; color: #344c69; font-size: 12px; }
.check-list .check-item:has(input:checked) { border-color: #91b3f6; background: #eaf2ff; color: #1e59ba; }
.check-item input { accent-color: #386fe6; }
.user-form > .check-item { border: 0; background: none; }
.users-list { grid-template-columns: 1fr; }
.user-card, .credential-box { border: 1px solid var(--line); border-radius: 12px; background: #fff; box-shadow: var(--shadow); }
.user-card { display: grid; grid-template-columns: minmax(220px, .75fr) minmax(0, 1.5fr); column-gap: 26px; padding: 26px; }
.user-card-heading { grid-column: 1; grid-row: 1 / span 2; display: block; padding-right: 26px; border-right: 1px solid var(--line); }
.user-card-heading h2 { margin: 0 0 13px; color: var(--text); font-size: 19px; line-height: 1.25; overflow-wrap: anywhere; }
.user-card .user-form { grid-column: 2; margin-top: 0; }
.user-card .user-form > .button { background: var(--indigo); color: #fff; border-color: var(--indigo); }
.user-card .user-form > .button:hover { background: #3d35c8; }
.user-card > form:last-child { grid-column: 2; border-color: var(--line); }
.user-card .text-button { color: #2468cb; }
.credential-box { border-color: #b6d6c3; background: #f0faf3; }
.credential-box code { background: #fff; }

.mail-form { display: grid; grid-template-columns: repeat(2, minmax(0,1fr)); max-width: 840px; border: 1px solid var(--line); border-radius: 12px; background: #fff; box-shadow: var(--shadow); }
.mail-form label:first-of-type, .mail-form label:nth-of-type(6), .mail-form .button { grid-column: 1 / -1; }
.mail-test { max-width: 840px; }

.comparison-note { border: 1px solid #c6d8f4; border-left: 4px solid #2b70e7; border-radius: 9px; background: #f4f8ff; color: #4b6583; }
.comparison-note strong { color: #244d89; }
.comparison-card { border: 1px solid var(--line); border-radius: 12px; background: #fff; box-shadow: var(--shadow); }
.comparison-card h2 { margin-top: 10px; color: var(--text); font-size: 22px; }
.comparison-card h3 { color: #244d83; }
.comparison-state { border: 1px solid #f2d7a5; background: #fff8e8; color: #95651d; }
.comparison-columns section { border: 1px solid #e5ebf4; border-radius: 9px; background: #f8fafd; }
.comparison-facts dt { color: #6c809a; }
.comparison-facts dd { color: #253b58; }
.comparison-facts code { color: #215fb9; }

@media (max-width: 1120px) {
  .topbar { height: auto; min-height: 66px; padding: 10px 24px; flex-wrap: wrap; gap: 8px 22px; }
  nav { flex-wrap: wrap; }
}
@media (max-width: 900px) {
  .hero { align-items: flex-start; flex-direction: column; }
  .user-card { grid-template-columns: 1fr; }
  .user-card-heading { grid-column: 1; grid-row: auto; margin-bottom: 18px; padding: 0 0 16px; border-right: 0; border-bottom: 1px solid var(--line); }
  .user-card .user-form, .user-card > form:last-child { grid-column: 1; }
}
@media (max-width: 700px) {
  .topbar { align-items: flex-start; }
  nav { gap: 2px; }
  nav a, .link-button { padding: 6px 8px; font-size: 11px; }
  .container { width: calc(100% - 28px); margin: 25px auto 50px; }
  .hero { min-height: 0; padding: 27px 25px; }
  .summary-grid, .sites-grid { grid-template-columns: 1fr; }
  .summary:first-child { grid-column: auto; }
  .mail-form { grid-template-columns: 1fr; }
  .mail-form label:first-of-type, .mail-form label:nth-of-type(6), .mail-form .button { grid-column: 1; }
  .comparison-columns { grid-template-columns: 1fr; }
}
@media (max-width: 480px) {
  .topbar { padding: 10px 14px; }
  .brand { font-size: 21px; }
  nav { gap: 2px; }
  nav a, .link-button { min-height: 31px; padding: 5px 7px; font-size: 11px; }
  .hero-actions, .hero-actions .button { width: 100%; }
  .site-card, .user-card, .auth-card { padding: 20px; }
  .check-list { grid-template-columns: 1fr; }
}