:root {
  color-scheme: light;
  --bg: #f5f1e8;
  --panel: rgba(255, 252, 245, 0.92);
  --ink: #14211c;
  --muted: #5c6b63;
  --line: rgba(20, 33, 28, 0.12);
  --accent: #115e45;
  --accent-strong: #0a4533;
  --danger: #8d2e2e;
  --shadow: 0 20px 50px rgba(20, 33, 28, 0.12);
}

* { box-sizing: border-box; }

body {
  margin: 0;
  font-family: "Segoe UI", "Helvetica Neue", sans-serif;
  color: var(--ink);
  background:
    radial-gradient(circle at top left, rgba(17, 94, 69, 0.18), transparent 30%),
    radial-gradient(circle at bottom right, rgba(141, 46, 46, 0.12), transparent 28%),
    linear-gradient(180deg, #f9f6ef, var(--bg));
  min-height: 100vh;
}

.login-shell,
.admin-shell {
  padding: 32px;
}

.login-card,
.panel {
  background: var(--panel);
  backdrop-filter: blur(10px);
  border: 1px solid var(--line);
  border-radius: 24px;
  box-shadow: var(--shadow);
}

.login-card {
  max-width: 460px;
  margin: 8vh auto 0;
  padding: 32px;
}

.hero {
  display: flex;
  gap: 16px;
  justify-content: space-between;
  align-items: start;
  margin: 0 auto 24px;
  max-width: 1240px;
}

.grid {
  max-width: 1240px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: 320px minmax(0, 1fr);
  gap: 24px;
}

.panel {
  padding: 24px;
}

.panel-wide {
  min-width: 0;
}

.section-head {
  display: flex;
  justify-content: space-between;
  gap: 16px;
  align-items: center;
}

.eyebrow {
  text-transform: uppercase;
  letter-spacing: 0.16em;
  font-size: 12px;
  color: var(--muted);
  margin-bottom: 10px;
}

h1, h2 {
  margin: 0 0 12px;
  line-height: 1.1;
}

h1 {
  font-size: clamp(34px, 5vw, 58px);
  max-width: 12ch;
}

h2 {
  font-size: 22px;
}

.subtle {
  color: var(--muted);
  max-width: 60ch;
}

.stack {
  display: grid;
  gap: 16px;
}

label {
  display: grid;
  gap: 8px;
  font-weight: 600;
}

input,
textarea,
button {
  font: inherit;
}

input,
textarea {
  width: 100%;
  border: 1px solid rgba(20, 33, 28, 0.14);
  background: rgba(255, 255, 255, 0.88);
  color: var(--ink);
  border-radius: 16px;
  padding: 14px 16px;
}

textarea {
  resize: vertical;
  min-height: 240px;
}

button {
  border: 0;
  border-radius: 16px;
  padding: 14px 18px;
  background: var(--accent);
  color: white;
  font-weight: 700;
  cursor: pointer;
}

button:hover {
  background: var(--accent-strong);
}

button.secondary {
  background: rgba(17, 94, 69, 0.1);
  color: var(--accent-strong);
}

.inline-actions {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  gap: 12px;
}

.runtime-grid {
  display: grid;
  gap: 12px;
}

.runtime-card {
  border: 1px solid var(--line);
  border-radius: 18px;
  padding: 14px 16px;
  background: rgba(255, 255, 255, 0.7);
}

.runtime-card strong {
  display: block;
  font-size: 13px;
  color: var(--muted);
  margin-bottom: 6px;
}

.message {
  min-height: 22px;
  margin: 0;
  color: var(--muted);
}

.message.error {
  color: var(--danger);
}

.message.success {
  color: var(--accent-strong);
}

@media (max-width: 900px) {
  .admin-shell,
  .login-shell {
    padding: 18px;
  }

  .hero,
  .grid {
    max-width: 100%;
  }

  .grid {
    grid-template-columns: 1fr;
  }

  .hero {
    flex-direction: column;
  }

  .inline-actions {
    grid-template-columns: 1fr;
  }
}