@import url('https://fonts.googleapis.com/css2?family=Inter:wght@400;500;600;700&display=swap');

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

/* Mono dark (default) */
:root {
  --grow-font-body:      'Inter', system-ui, -apple-system, BlinkMacSystemFont, 'Helvetica Neue', Arial, sans-serif;
  --grow-primary:        #f5f5f7;
  --grow-gradient:       linear-gradient(90deg, #f5f5f7 0%, #f5f5f7 100%);
  --grow-bg:             #000000;
  --grow-surface:        #1c1c1e;
  --grow-elevated:       #2c2c2e;
  --grow-border:         rgba(255, 255, 255, 0.10);
  --grow-border-strong:  rgba(255, 255, 255, 0.18);
  --grow-text:           #f5f5f5;
  --grow-text-secondary: #8e8e93;
  --grow-text-muted:     #636366;
  --grow-shadow:         0 4px 24px rgba(0, 0, 0, 0.60);
}

/* Mono light */
@media (prefers-color-scheme: light) {
  :root {
    --grow-primary:        #1d1d1f;
    --grow-gradient:       linear-gradient(90deg, #1d1d1f 0%, #1d1d1f 100%);
    --grow-bg:             #ffffff;
    --grow-surface:        #f5f5f5;
    --grow-elevated:       #e8e8e8;
    --grow-border:         rgba(0, 0, 0, 0.09);
    --grow-border-strong:  rgba(0, 0, 0, 0.15);
    --grow-text:           #1d1d1f;
    --grow-text-secondary: #6e6e73;
    --grow-text-muted:     #8e8e93;
    --grow-shadow:         0 4px 24px rgba(0, 0, 0, 0.08);
  }
}

html, body {
  min-height: 100vh;
  font-family: var(--grow-font-body);
  background: var(--grow-bg);
  color: var(--grow-text);
  display: flex;
  align-items: center;
  justify-content: center;
}

.grow-root {
  width: 100%;
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 1rem;
}

.grow-card {
  background: var(--grow-surface);
  border: 1px solid var(--grow-border);
  border-radius: 20px;
  padding: 2.5rem 2rem;
  width: 100%;
  max-width: 400px;
  box-shadow: var(--grow-shadow);
}

.grow-logo {
  font-family: var(--grow-font-body);
  font-size: 2rem;
  font-weight: 700;
  background: var(--grow-gradient);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  display: inline-block;
}

.grow-logo-sub {
  font-size: 0.75rem;
  color: var(--grow-text-muted);
  letter-spacing: 0.1em;
  text-transform: uppercase;
  margin-top: 0.125rem;
  margin-bottom: 2rem;
}

.grow-alert {
  padding: 0.625rem 0.875rem;
  border-radius: 10px;
  font-size: 0.8125rem;
  margin-bottom: 1.25rem;
}
.grow-alert.error   { background: rgba(255,80,80,0.12);  color: #ff8080; border: 1px solid rgba(255,80,80,0.2); }
.grow-alert.warning { background: rgba(255,180,0,0.10);  color: #ffc940; border: 1px solid rgba(255,180,0,0.2); }
.grow-alert.success { background: rgba(60,200,120,0.12); color: #5dd49a; border: 1px solid rgba(60,200,120,0.2); }
.grow-alert.info    { background: rgba(150,150,150,0.10); color: var(--grow-text-secondary); border: 1px solid rgba(150,150,150,0.2); }

.grow-field { margin-bottom: 1rem; }

.grow-field label {
  display: block;
  font-size: 0.75rem;
  color: var(--grow-text-secondary);
  margin-bottom: 0.375rem;
  letter-spacing: 0.02em;
}

.grow-field input {
  width: 100%;
  background: var(--grow-elevated);
  border: 1px solid var(--grow-border);
  border-radius: 12px;
  padding: 0.625rem 1rem;
  font-size: 0.875rem;
  font-family: var(--grow-font-body);
  color: var(--grow-text);
  outline: none;
  transition: border-color 0.15s;
}

.grow-field input:focus { border-color: var(--grow-border-strong); }
.grow-field input::placeholder { color: var(--grow-text-muted); }

.grow-field-error {
  font-size: 0.75rem;
  color: #ff8080;
  margin-top: 0.25rem;
}

.grow-btn-primary {
  width: 100%;
  padding: 0.75rem;
  border-radius: 999px;
  border: none;
  background: var(--grow-primary);
  color: var(--grow-bg);
  font-size: 0.875rem;
  font-weight: 600;
  font-family: var(--grow-font-body);
  cursor: pointer;
  transition: opacity 0.15s, transform 0.1s;
  margin-top: 0.5rem;
}
.grow-btn-primary:hover  { opacity: 0.85; transform: translateY(-1px); }
.grow-btn-primary:active { transform: scale(0.98); }

.grow-footer {
  display: flex;
  justify-content: flex-end;
  margin-top: 1.25rem;
}

.grow-link {
  color: var(--grow-text-secondary);
  font-size: 0.8125rem;
  text-decoration: none;
  background: none;
  border: none;
  cursor: pointer;
  font-family: var(--grow-font-body);
}
.grow-link:hover { color: var(--grow-text); }

.grow-hint {
  font-size: 0.875rem;
  color: var(--grow-text-secondary);
  margin-bottom: 1.5rem;
  line-height: 1.5;
}