@import url('https://fonts.googleapis.com/css2?family=Space+Grotesk:wght@400;600&display=swap');

:root {
  --bg: #f7f8fb;
  --surface: #ffffff;
  --text: #0f172a;
  --muted: #64748b;
  --primary: #2563eb;
  --primary-strong: #1d4ed8;
  --border: #e2e8f0;
  --shadow: 0 18px 40px rgba(15, 23, 42, 0.08);
}

[data-theme='dark'] {
  --bg: #0b1220;
  --surface: #111827;
  --text: #e2e8f0;
  --muted: #94a3b8;
  --primary: #60a5fa;
  --primary-strong: #3b82f6;
  --border: #1f2937;
  --shadow: 0 18px 40px rgba(0, 0, 0, 0.4);
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  font-family: 'Space Grotesk', 'Segoe UI', sans-serif;
  background: var(--bg);
  color: var(--text);
  min-height: 100vh;
}

a {
  color: var(--primary);
  text-decoration: none;
}

a:hover {
  text-decoration: underline;
}

header {
  background: var(--surface);
  border-bottom: 1px solid var(--border);
  position: sticky;
  top: 0;
  z-index: 10;
}

.navbar {
  max-width: 1100px;
  margin: 0 auto;
  padding: 16px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
}

.brand {
  font-weight: 700;
  letter-spacing: -0.02em;
  color: var(--text);
}

.nav-links {
  display: flex;
  gap: 12px;
  align-items: center;
}

.nav-links a {
  padding: 8px 12px;
  border-radius: 10px;
  color: var(--text);
}

.nav-links a.active,
.nav-links a:hover {
  background: var(--border);
}

.container {
  max-width: 1100px;
  margin: 0 auto;
  padding: 24px 16px 48px;
}

.hero {
  background: linear-gradient(135deg, rgba(37, 99, 235, 0.12), rgba(37, 99, 235, 0.03));
  border: 1px solid var(--border);
  border-radius: 24px;
  padding: 32px;
  box-shadow: var(--shadow);
}

.hero h1 {
  margin: 0 0 10px;
  font-size: 28px;
}

.hero p {
  margin: 0 0 18px;
  color: var(--muted);
}

form .field {
  display: flex;
  flex-direction: column;
  gap: 6px;
  margin-bottom: 14px;
}

label {
  font-size: 14px;
  color: var(--muted);
}

input,
select,
textarea {
  padding: 12px;
  border-radius: 12px;
  border: 1px solid var(--border);
  background: var(--surface);
  color: var(--text);
}

input:focus,
select:focus,
textarea:focus {
  outline: 2px solid var(--primary);
  border-color: transparent;
}

button,
.primary-btn {
  background: var(--primary);
  color: #fff;
  border: none;
  border-radius: 12px;
  padding: 12px 16px;
  font-weight: 600;
  cursor: pointer;
  transition: transform 0.15s ease, box-shadow 0.15s ease;
  box-shadow: 0 10px 30px rgba(37, 99, 235, 0.25);
}

button:hover,
.primary-btn:hover {
  transform: translateY(-1px);
  box-shadow: 0 14px 32px rgba(37, 99, 235, 0.35);
}

.secondary-btn {
  background: transparent;
  color: var(--text);
  border: 1px solid var(--border);
  padding: 10px 14px;
  border-radius: 10px;
}

#theme-toggle {
  border: none;
  background: transparent;
  box-shadow: none;
  padding: 6px 8px;
  font-size: 18px;
  line-height: 1;
  cursor: pointer;
}

#theme-toggle:hover {
  transform: translateY(-1px);
}

#theme-toggle svg {
  width: 20px;
  height: 20px;
  color: var(--text);
}

.google-btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 10px 14px;
  border: 1px solid var(--border);
  border-radius: 10px;
  color: var(--text);
  background: var(--surface);
  text-decoration: none;
}

.google-btn:hover {
  border-color: var(--primary);
}

.card-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 16px;
  margin-top: 20px;
}

.card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 18px;
  padding: 18px;
  box-shadow: var(--shadow);
}

.badge {
  display: inline-block;
  background: rgba(37, 99, 235, 0.1);
  color: var(--primary-strong);
  padding: 6px 10px;
  border-radius: 999px;
  font-size: 12px;
  margin-right: 6px;
  margin-bottom: 6px;
}

.status {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 6px 10px;
  border-radius: 999px;
  background: var(--border);
  color: var(--text);
  font-size: 12px;
}

.table {
  width: 100%;
  border-collapse: collapse;
  margin-top: 12px;
}

.table th,
.table td {
  padding: 10px;
  border-bottom: 1px solid var(--border);
  text-align: left;
}

.alert {
  padding: 12px 14px;
  border-radius: 12px;
  margin-bottom: 12px;
  border: 1px solid var(--border);
  background: rgba(37, 99, 235, 0.08);
  color: var(--text);
}

.list {
  list-style: none;
  padding-left: 0;
  margin: 0;
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.chat-message {
  padding: 10px;
  border-radius: 12px;
  margin-bottom: 8px;
  background: var(--surface);
  border: 1px solid var(--border);
}

.chat-message.me {
  border-color: var(--primary);
  background: rgba(37, 99, 235, 0.06);
}

.chat-message .meta {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 4px;
}

.chat-message .body {
  white-space: pre-wrap;
}

footer {
  padding: 24px;
  text-align: center;
  color: var(--muted);
}

@media (max-width: 720px) {
  .navbar {
    flex-direction: column;
    align-items: flex-start;
  }
  .hero {
    padding: 24px;
  }
}