@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600&family=JetBrains+Mono:wght@400;500&display=swap');

*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

:root {
  --bg:        #0d0d0f;
  --surface:   #16161a;
  --border:    #252530;
  --muted:     #3a3a48;
  --text-dim:  #6b6b80;
  --text:      #c8c8d8;
  --text-hi:   #eeeef5;
  --accent:    #7c6fff;
  --accent-hi: #a99fff;
  --danger:    #e05a5a;
  --success:   #4caf82;
  --radius:    10px;
  --transition: 140ms ease;
}

html, body {
  height: 100%;
}

body {
  background: var(--bg);
  color: var(--text);
  font-family: 'Inter', system-ui, sans-serif;
  font-size: 15px;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

a {
  color: var(--accent-hi);
  text-decoration: none;
  transition: color var(--transition);
}
a:hover { color: #fff; }

/* ── Layout ── */
.page-center {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: 2rem 1rem;
}

.card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 2.5rem 2rem;
  width: 100%;
  max-width: 400px;
}

/* ── Wordmark ── */
.wordmark {
  font-family: 'JetBrains Mono', monospace;
  font-size: 1.1rem;
  font-weight: 500;
  color: var(--text-hi);
  letter-spacing: -0.02em;
  margin-bottom: 2rem;
  display: flex;
  align-items: center;
  gap: 0.5rem;
}
.wordmark span {
  display: inline-block;
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--accent);
}

/* ── Form ── */
.form-group {
  margin-bottom: 1.1rem;
}

label {
  display: block;
  font-size: 0.78rem;
  font-weight: 500;
  color: var(--text-dim);
  letter-spacing: 0.04em;
  margin-bottom: 0.4rem;
  text-transform: uppercase;
}

input[type="text"],
input[type="password"],
textarea {
  width: 100%;
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: 6px;
  color: var(--text-hi);
  font-family: inherit;
  font-size: 0.93rem;
  padding: 0.65rem 0.8rem;
  outline: none;
  transition: border-color var(--transition), box-shadow var(--transition);
}
input[type="text"]:focus,
input[type="password"]:focus,
textarea:focus {
  border-color: var(--accent);
  box-shadow: 0 0 0 3px rgba(124,111,255,0.15);
}

textarea {
  resize: vertical;
  min-height: 180px;
  line-height: 1.7;
}

/* ── Buttons ── */
.btn {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  width: 100%;
  padding: 0.7rem 1rem;
  border-radius: 6px;
  border: none;
  font-family: inherit;
  font-size: 0.9rem;
  font-weight: 500;
  cursor: pointer;
  transition: background var(--transition), opacity var(--transition), transform var(--transition);
  outline: none;
}
.btn:active { transform: scale(0.985); }
.btn:disabled { opacity: 0.45; pointer-events: none; }

.btn-primary {
  background: var(--accent);
  color: #fff;
  margin-bottom: 0.75rem;
}
.btn-primary:hover { background: var(--accent-hi); }

.btn-google {
  background: transparent;
  border: 1px solid var(--border);
  color: var(--text);
  margin-bottom: 0.75rem;
}
.btn-google:hover { background: var(--muted); border-color: var(--muted); color: var(--text-hi); }
.btn-google svg { flex-shrink: 0; }

.btn-ghost {
  background: transparent;
  border: 1px solid var(--border);
  color: var(--text-dim);
  font-size: 0.85rem;
}
.btn-ghost:hover { color: var(--text-hi); border-color: var(--muted); }

.btn-danger {
  background: transparent;
  border: 1px solid var(--border);
  color: var(--danger);
}
.btn-danger:hover { background: rgba(224,90,90,0.1); }

/* ── Divider ── */
.divider {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  margin: 1.25rem 0;
  color: var(--text-dim);
  font-size: 0.78rem;
}
.divider::before, .divider::after {
  content: '';
  flex: 1;
  height: 1px;
  background: var(--border);
}

/* ── Footer link ── */
.form-footer {
  margin-top: 1.5rem;
  text-align: center;
  font-size: 0.83rem;
  color: var(--text-dim);
}

/* ── Alert ── */
.alert {
  padding: 0.65rem 0.85rem;
  border-radius: 6px;
  font-size: 0.85rem;
  margin-bottom: 1.1rem;
  display: none;
}
.alert.show { display: block; }
.alert-error { background: rgba(224,90,90,0.1); border: 1px solid rgba(224,90,90,0.3); color: #e88; }
.alert-success { background: rgba(76,175,130,0.1); border: 1px solid rgba(76,175,130,0.3); color: #6ecf9f; }

/* ── App layout ── */
.app-shell {
  min-height: 100vh;
  display: grid;
  grid-template-rows: auto 1fr;
  max-width: 740px;
  margin: 0 auto;
  padding: 0 1.25rem;
}

.app-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 1.25rem 0;
  border-bottom: 1px solid var(--border);
  gap: 1rem;
}

.app-header .wordmark { margin: 0; }

.user-chip {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  font-size: 0.83rem;
  color: var(--text-dim);
}
.user-chip strong { color: var(--text); font-weight: 500; }

.app-main {
  padding: 2.5rem 0 3rem;
}

.note-meta {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 0.75rem;
}

.note-label {
  font-size: 0.78rem;
  font-weight: 500;
  color: var(--text-dim);
  letter-spacing: 0.04em;
  text-transform: uppercase;
}

.save-status {
  font-size: 0.78rem;
  color: var(--text-dim);
  font-family: 'JetBrains Mono', monospace;
}
.save-status.saved { color: var(--success); }
.save-status.error { color: var(--danger); }

.note-actions {
  display: flex;
  gap: 0.6rem;
  margin-top: 0.85rem;
}
.note-actions .btn { width: auto; padding: 0.55rem 1.1rem; font-size: 0.85rem; }

@media (max-width: 500px) {
  .card { padding: 2rem 1.25rem; }
  .app-header { flex-wrap: wrap; }
}