:root {
  --ink: #1f2937;
  --soft-ink: #4b5563;
  --line: #d1d5db;
  --paper: #f9fafb;
  --mint: #0f766e;
  --mint-2: #115e59;
  --card: #ffffff;
}

* {
  box-sizing: border-box;
}

html,
body {
  margin: 0;
  padding: 0;
  height: 100%;
  color: var(--ink);
  background: radial-gradient(circle at top right, #cffafe, #ecfeff 45%, #f8fafc 100%);
  font-family: "Segoe UI", Tahoma, Geneva, Verdana, sans-serif;
}

.bg-grid {
  background-image:
    linear-gradient(rgba(15, 118, 110, 0.08) 1px, transparent 1px),
    linear-gradient(90deg, rgba(15, 118, 110, 0.08) 1px, transparent 1px),
    radial-gradient(circle at 10% 10%, #ccfbf1, transparent 35%);
  background-size: 28px 28px, 28px 28px, auto;
}

.auth-wrap {
  min-height: 100%;
  display: grid;
  place-items: center;
  padding: 24px;
}

.card {
  width: min(420px, 100%);
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: 18px;
  padding: 28px;
  box-shadow: 0 20px 45px rgba(15, 23, 42, 0.12);
}

h1 {
  margin: 0 0 8px;
  font-size: 1.7rem;
}

.muted {
  margin: 0 0 18px;
  color: var(--soft-ink);
}

.auth-form {
  display: grid;
  gap: 10px;
}

label {
  font-size: 0.92rem;
}

input {
  width: 100%;
  border: 1px solid var(--line);
  border-radius: 10px;
  padding: 12px;
  font: inherit;
}

button {
  border: none;
  background: var(--mint);
  color: #ffffff;
  border-radius: 10px;
  padding: 11px 14px;
  font-weight: 600;
  cursor: pointer;
}

button:hover {
  background: var(--mint-2);
}

.outline {
  background: transparent;
  border: 1px solid var(--line);
  color: var(--ink);
}

.outline:hover {
  background: #f3f4f6;
}

.topbar {
  display: flex;
  gap: 12px;
  align-items: center;
  padding: 12px;
  border-bottom: 1px solid var(--line);
  background: rgba(255, 255, 255, 0.82);
  backdrop-filter: blur(8px);
}

.nav-form {
  flex: 1;
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 8px;
}

.meta {
  padding: 8px 12px;
  font-size: 0.92rem;
  color: var(--soft-ink);
  border-bottom: 1px solid var(--line);
  background: #ffffff;
}

.browser-wrap {
  height: calc(100% - 104px);
}

#view {
  width: 100%;
  height: 100%;
  border: 0;
  background: #ffffff;
}

@media (max-width: 700px) {
  .topbar {
    flex-direction: column;
    align-items: stretch;
  }

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