:root {
  color-scheme: light;
  --bg: #f6f7f9;
  --panel: #ffffff;
  --text: #17202a;
  --muted: #647282;
  --line: #dfe5eb;
  --primary: #245c7a;
  --primary-dark: #1b465d;
  --accent: #7b8f3d;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  min-height: 100vh;
  background: var(--bg);
  color: var(--text);
  font-family: Arial, Helvetica, sans-serif;
  line-height: 1.5;
}

a {
  color: inherit;
  text-decoration: none;
}

.site-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  padding: 18px clamp(20px, 5vw, 64px);
  background: var(--panel);
  border-bottom: 1px solid var(--line);
}

.brand {
  font-size: 22px;
  font-weight: 700;
  letter-spacing: 0;
}

nav {
  display: flex;
  align-items: center;
  gap: 18px;
  color: var(--muted);
  font-size: 15px;
}

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 40px;
  padding: 0 16px;
  border: 1px solid var(--line);
  border-radius: 6px;
  background: var(--panel);
  color: var(--text);
  font-weight: 600;
}

.button.primary {
  border-color: var(--primary);
  background: var(--primary);
  color: #fff;
}

.button.primary:hover {
  background: var(--primary-dark);
}

.button.secondary {
  color: var(--primary);
}

.hero {
  display: grid;
  align-items: center;
  min-height: 520px;
  padding: 72px clamp(20px, 8vw, 112px);
  background:
    linear-gradient(90deg, rgba(246, 247, 249, 0.97), rgba(246, 247, 249, 0.8)),
    url("https://images.unsplash.com/photo-1516321318423-f06f85e504b3?auto=format&fit=crop&w=1800&q=75");
  background-position: center;
  background-size: cover;
}

.hero > div {
  max-width: 720px;
}

.eyebrow {
  margin: 0 0 12px;
  color: var(--accent);
  font-weight: 700;
  text-transform: uppercase;
  font-size: 13px;
}

h1 {
  margin: 0 0 18px;
  font-size: clamp(36px, 5vw, 58px);
  line-height: 1.08;
  letter-spacing: 0;
}

h2 {
  margin: 0 0 8px;
  font-size: 20px;
  letter-spacing: 0;
}

p {
  margin: 0 0 16px;
}

.lead {
  max-width: 620px;
  color: var(--muted);
  font-size: 19px;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 28px;
}

.features,
.content,
.login-page {
  padding: 48px clamp(20px, 5vw, 64px);
}

.features {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 18px;
}

.features article,
.info-grid > div,
.login-card,
.status-row {
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 24px;
}

.features p,
.content p {
  color: var(--muted);
}

.content {
  max-width: 980px;
}

.content h1 {
  font-size: 42px;
}

.info-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 18px;
  margin-top: 24px;
}

.login-page {
  display: grid;
  place-items: center;
  min-height: calc(100vh - 78px);
}

.login-card {
  width: min(100%, 420px);
}

.login-card h1 {
  font-size: 30px;
}

label {
  display: grid;
  gap: 8px;
  margin: 16px 0;
  color: var(--muted);
  font-size: 14px;
  font-weight: 600;
}

input {
  min-height: 44px;
  border: 1px solid var(--line);
  border-radius: 6px;
  padding: 0 12px;
  color: var(--text);
  font: inherit;
}

.form-message {
  min-height: 24px;
  margin-top: 14px;
  color: var(--muted);
}

.status-row {
  display: flex;
  gap: 16px;
  align-items: flex-start;
}

.status-dot {
  width: 12px;
  height: 12px;
  margin-top: 8px;
  border-radius: 50%;
  background: #d9a441;
  box-shadow: 0 0 0 4px rgba(217, 164, 65, 0.18);
  flex: 0 0 auto;
}

footer {
  display: flex;
  justify-content: space-between;
  gap: 16px;
  padding: 24px clamp(20px, 5vw, 64px);
  color: var(--muted);
  border-top: 1px solid var(--line);
  font-size: 14px;
}

@media (max-width: 760px) {
  .site-header,
  nav,
  footer {
    align-items: flex-start;
    flex-direction: column;
  }

  .features,
  .info-grid {
    grid-template-columns: 1fr;
  }

  .hero {
    min-height: 460px;
  }
}