:root {
  --telegram-blue: #229ED9;
  --telegram-blue-dark: #0088CC;
  --bg: #f4f8fb;
  --card-bg: #ffffff;
  --text: #17212b;
  --text-muted: #6b7c8c;
  --border: #e1e9f0;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  background: var(--bg);
  color: var(--text);
}

.page-header {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 20px 24px;
  background: var(--telegram-blue);
  color: white;
}

.page-header svg { width: 28px; height: 28px; }
.page-header h1 { font-size: 18px; margin: 0; font-weight: 600; }

.container { max-width: 720px; margin: 0 auto; padding: 24px; }

.card {
  background: var(--card-bg);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 20px;
  margin-bottom: 20px;
}

.card h2 { margin: 0 0 16px; font-size: 16px; color: var(--text); }

label {
  display: block;
  font-size: 12px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  color: var(--text-muted);
  margin-bottom: 6px;
}

.field { margin-bottom: 16px; }

.field-row { display: flex; gap: 8px; align-items: stretch; }

input[type="text"], input[type="password"] {
  flex: 1;
  padding: 10px 12px;
  border: 1px solid var(--border);
  border-radius: 8px;
  font-size: 14px;
  font-family: inherit;
}

input[type="text"]:focus, input[type="password"]:focus {
  outline: none;
  border-color: var(--telegram-blue);
  box-shadow: 0 0 0 3px rgba(34, 158, 217, 0.15);
}

button {
  cursor: pointer;
  font-family: inherit;
  font-size: 13px;
  font-weight: 600;
  border-radius: 8px;
  border: none;
  padding: 10px 16px;
  transition: background 0.15s;
}

.btn-primary {
  background: var(--telegram-blue);
  color: white;
}
.btn-primary:hover { background: var(--telegram-blue-dark); }
.btn-primary:disabled { opacity: 0.5; cursor: not-allowed; }

.btn-secondary {
  background: #eef5fa;
  color: var(--telegram-blue-dark);
  border: 1px solid var(--border);
  white-space: nowrap;
}
.btn-secondary:hover { background: #dcecf6; }
.btn-secondary:disabled { opacity: 0.5; cursor: not-allowed; }

.status-msg { font-size: 13px; margin-top: 8px; }
.status-msg.ok { color: #1a7a3e; }
.status-msg.error { color: #c0392b; }

.login-container {
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 100vh;
}

.login-card {
  background: var(--card-bg);
  border-radius: 16px;
  padding: 32px;
  width: 320px;
  box-shadow: 0 8px 24px rgba(0,0,0,0.08);
  text-align: center;
}

.login-card svg { width: 48px; height: 48px; color: var(--telegram-blue); margin-bottom: 12px; }
.login-card h1 { font-size: 18px; margin: 0 0 20px; }