:root {
  --bg: #f5f6f8;
  --surface: #ffffff;
  --surface-2: #eef0f3;
  --border: #dde1e6;
  --ink: #1a1d21;
  --ink-soft: #5b6270;
  --ink-faint: #8b93a1;
  --accent: #0d6b74;
  --accent-soft: #e2f2f3;
  --gold: #a8790a;
  --shadow: 0 1px 2px rgba(20, 24, 30, 0.06), 0 4px 14px rgba(20, 24, 30, 0.06);
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg: #14161a;
    --surface: #1c1f24;
    --surface-2: #23272e;
    --border: #33383f;
    --ink: #eef0f3;
    --ink-soft: #a7aeb9;
    --ink-faint: #767e8a;
    --accent: #3dd2dc;
    --accent-soft: #12363a;
    --gold: #e0b84a;
    --shadow: 0 1px 2px rgba(0,0,0,0.3), 0 4px 14px rgba(0,0,0,0.35);
  }
}

* { box-sizing: border-box; }

html, body {
  margin: 0;
  min-height: 100vh;
  background: var(--bg);
  color: var(--ink);
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Helvetica, Arial, sans-serif;
}

.wordmark {
  display: inline-flex;
  align-items: baseline;
  gap: 0.5rem;
  font-weight: 800;
  font-size: 1.3rem;
}
.wordmark svg { vertical-align: -0.05em; }

.center-screen {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 1.5rem;
}

.panel {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 12px;
  box-shadow: var(--shadow);
  padding: 2rem;
  width: 100%;
  max-width: 360px;
}

.panel .wordmark { display: flex; margin-bottom: 0.3rem; }
.panel .tagline {
  font-size: 0.75rem;
  color: var(--ink-faint);
  letter-spacing: 0.08em;
  text-transform: uppercase;
  margin: 0 0 1.5rem;
}

.field { display: flex; flex-direction: column; gap: 0.35rem; margin-bottom: 1rem; }
.field label { font-size: 0.75rem; color: var(--ink-soft); font-weight: 600; }
.field input {
  padding: 0.6rem 0.8rem;
  border-radius: 6px;
  border: 1px solid var(--border);
  background: var(--surface-2);
  color: var(--ink);
  font-size: 0.9rem;
}
.field input:focus { outline: 2px solid var(--accent); outline-offset: 1px; }

.btn {
  border: none;
  border-radius: 8px;
  padding: 0.6rem 1rem;
  font-size: 0.85rem;
  font-weight: 600;
  cursor: pointer;
  font-family: inherit;
}
.btn-primary { background: var(--accent); color: #fff; width: 100%; }
.btn-primary:hover { filter: brightness(1.08); }

.error-note {
  background: #fbe9e7;
  color: #b3261e;
  border-radius: 6px;
  padding: 0.5rem 0.75rem;
  font-size: 0.8rem;
  margin-bottom: 1rem;
}
@media (prefers-color-scheme: dark) {
  .error-note { background: #3a1815; color: #ff6b60; }
}

/* Home dashboard */
.page {
  max-width: 900px;
  margin: 0 auto;
  padding: 2.5rem 1.5rem 4rem;
}

.page-header {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  margin-bottom: 2rem;
}

.page-header .subtitle {
  color: var(--ink-faint);
  font-size: 0.85rem;
  margin: 0.3rem 0 0;
}

.logout-form button {
  background: transparent;
  border: 1px solid var(--border);
  color: var(--ink-soft);
  border-radius: 8px;
  padding: 0.5rem 0.9rem;
  font-size: 0.8rem;
  cursor: pointer;
  font-family: inherit;
}
.logout-form button:hover { color: var(--ink); border-color: var(--ink-soft); }

.tool-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(240px, 1fr));
  gap: 1rem;
}

.tool-card {
  display: block;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 10px;
  box-shadow: var(--shadow);
  padding: 1.3rem;
  text-decoration: none;
  color: inherit;
  transition: border-color 0.12s ease;
}
.tool-card:hover { border-color: var(--accent); }

.tool-card h3 {
  margin: 0 0 0.4rem;
  font-size: 1.05rem;
}

.tool-card p {
  margin: 0;
  font-size: 0.82rem;
  color: var(--ink-soft);
  line-height: 1.4;
}

.empty-tools {
  color: var(--ink-faint);
  font-size: 0.85rem;
}