:root {
  color-scheme: dark;
  --bg: #101318;
  --surface: #1A1F26;
  --accent: #80E8C3;
  --on-accent: #10251D;
  --text: #F3F6F8;
  --muted: #ADB6C0;
  --line: #303945;
  --error: #FFB4AB;
  --warning: #F4D08C;
  font-family: Tahoma, Arial, sans-serif;
}
* { box-sizing: border-box; }
[hidden] { display: none !important; }
body { margin: 0; background: var(--bg); color: var(--text); font-size: 16px; line-height: 1.7; }
button, input { font: inherit; touch-action: manipulation; }
button { cursor: pointer; }
button:disabled { opacity: .65; cursor: wait; }
a { color: var(--accent); text-underline-offset: 4px; }
h1, h2, p { margin: 0 0 16px; }
h1 { font-size: clamp(28px, 4vw, 38px); line-height: 1.3; font-weight: 700; }
h2 { font-size: 22px; line-height: 1.45; }
label { display: block; margin: 20px 0 8px; font-size: 14px; font-weight: 700; }
input { width: 100%; min-width: 0; min-height: 54px; padding: 12px 16px; border: 1px solid var(--line); border-radius: 10px; background: var(--bg); color: var(--text); }
input::placeholder { color: var(--muted); opacity: 1; }
input:focus, button:focus-visible, a:focus-visible { outline: 3px solid var(--accent); outline-offset: 3px; }
input[readonly] { color: var(--muted); }
.brand { display: inline-flex; align-items: center; gap: 5px; direction: ltr; flex-shrink: 0; font: 800 29px Arial, sans-serif; letter-spacing: 2px; line-height: 1; color: var(--text); white-space: nowrap; }
.brand svg { width: 38px; height: 38px; fill: var(--accent); }
.brand b { color: var(--accent); }
.eyebrow { display: block; margin-bottom: 12px; color: var(--muted); font-size: 12px; }
.muted { color: var(--muted); }
.card { padding: 32px; border: 1px solid var(--line); border-radius: 16px; background: var(--surface); }
.button { display: inline-flex; align-items: center; justify-content: center; gap: 12px; min-height: 54px; padding: 12px 24px; border: 1px solid transparent; border-radius: 10px; font-weight: 700; }
.primary { background: var(--accent); color: var(--on-accent); }
.primary:hover:not(:disabled) { background: #9BEFD2; }
.primary:active:not(:disabled) { background: #6BD7B2; }
.error { margin: 14px 0 0; color: var(--error); font-size: 14px; overflow-wrap: anywhere; }
.login-view { display: grid; grid-template-columns: minmax(0, 1.1fr) minmax(0, 1fr); align-items: center; gap: 72px; width: min(1120px, 100%); min-height: 100vh; margin: 0 auto; padding: 56px 32px; }
.login-intro .brand { margin-bottom: 40px; font-size: 35px; }
.login-intro .brand svg { width: 44px; height: 44px; }
.login-intro h1 { margin: 24px 0; font-size: clamp(34px, 4.5vw, 52px); }
.login-intro > p:not(.eyebrow) { max-width: 430px; color: var(--muted); }
.login-card .primary { width: 100%; margin-top: 24px; }
.simple-dashboard { width: min(800px, 100%); min-height: 100vh; margin: 0 auto; padding: 44px 28px; }
.simple-header { display: flex; flex-wrap: wrap; align-items: center; justify-content: space-between; gap: 20px; margin-bottom: 48px; }
.simple-header > .muted { font-size: 14px; }
.source-card { padding: 36px; }
.source-card h1 { margin-bottom: 32px; }
.source-label { display: flex; flex-wrap: wrap; align-items: center; justify-content: space-between; gap: 14px; margin-bottom: 12px; }
.source-label label { margin: 0; }
.source-input-row { display: grid; grid-template-columns: minmax(0, 1fr) auto; gap: 12px; }
.source-input-row .button { min-width: 112px; }
.source-status { display: inline-flex; align-items: center; gap: 8px; font-size: 13px; color: var(--muted); white-space: nowrap; }
.source-status::before { content: ''; flex-shrink: 0; width: 8px; height: 8px; border-radius: 50%; background: currentColor; }
.source-status.online { color: var(--accent); }
.source-status.offline { color: var(--error); }
.source-status.problem { color: var(--warning); }
.source-result { margin: 16px 0 0; min-height: 28px; font-size: 14px; overflow-wrap: anywhere; }
footer { margin-top: 28px; padding-top: 20px; border-top: 1px solid var(--line); color: var(--muted); font-size: 12px; }
.legal-body { padding: 40px 20px; }
.legal { max-width: 800px; margin: auto; }
.legal .brand { margin-bottom: 32px; }
.legal h2 { margin-top: 28px; }
.legal p { color: var(--muted); overflow-wrap: anywhere; }
@media (max-width: 760px) {
  .login-view { grid-template-columns: 1fr; align-content: center; gap: 28px; max-width: 500px; padding: 32px 20px; }
  .login-intro .brand { margin-bottom: 24px; font-size: 29px; }
  .login-intro .brand svg { width: 38px; height: 38px; }
  .login-intro h1 { margin: 18px 0; font-size: 34px; }
  .login-intro > p:not(.eyebrow) { font-size: 14px; }
  .login-card { padding: 24px; }
  .simple-dashboard { padding: 28px 20px; }
  .simple-header { gap: 12px; margin-bottom: 36px; }
  .simple-header > .muted { font-size: 12px; }
  .source-card { padding: 26px 22px; }
  .source-card h1 { margin-bottom: 28px; font-size: 30px; }
}
@media (max-width: 520px) {
  .simple-dashboard { padding: 24px 16px; }
  .source-card { padding: 24px 20px; }
  .source-input-row { grid-template-columns: 1fr; }
  .source-input-row .button { width: 100%; }
  .source-status { font-size: 12px; }
  .simple-header .brand { font-size: 25px; }
  .simple-header .brand svg { width: 32px; height: 32px; }
}
@media (max-width: 340px) {
  .login-view { padding: 24px 16px; }
  .login-card { padding: 20px; }
  .source-label { flex-wrap: wrap; gap: 8px; }
}
@media (prefers-reduced-motion: no-preference) {
  .button { transition: background-color .15s ease; }
}