@import url('https://fonts.googleapis.com/css2?family=Inter:wght@400;500;700;800&display=swap');

/* auth.css — Upfunnel brand identity: dark by default */
:root {
  --bg: #080C14;
  --surface: #111b21;
  --text: #FFFFFF;
  --text-secondary: #94A3B8;
  --border: rgba(148,163,184,0.25);
  --primary: #00E5FF;
  --primary-hover: #00c8e0;
  --primary-text: #080C14;
  --error-bg: rgba(239,154,154,0.1);
  --error-text: #ef9a9a;
  --error-border: rgba(239,154,154,0.3);
  --ok-bg: rgba(0,229,255,0.08);
  --ok-text: #00E5FF;
  --ok-border: rgba(0,229,255,0.25);
  --input-bg: #080C14;
  --input-focus: #00E5FF;
  --shadow: 0 2px 16px rgba(0,0,0,.4);
  --glow: 0 0 24px rgba(0,229,255,0.15);
}
[data-theme="light"] {
  --bg: #f0f2f5;
  --surface: #ffffff;
  --text: #080C14;
  --text-secondary: #64748b;
  --border: rgba(148,163,184,0.3);
  --primary: #00E5FF;
  --primary-hover: #00c8e0;
  --primary-text: #080C14;
  --error-bg: rgba(239,154,154,0.1);
  --error-text: #c62828;
  --error-border: rgba(239,154,154,0.3);
  --ok-bg: rgba(0,229,255,0.06);
  --ok-text: #0097a7;
  --ok-border: rgba(0,229,255,0.3);
  --input-bg: #ffffff;
  --input-focus: #00E5FF;
  --shadow: 0 2px 16px rgba(0,0,0,.08);
  --glow: 0 0 24px rgba(0,229,255,0.1);
}
* { box-sizing: border-box; margin: 0; padding: 0; }
body {
  font-family: 'Inter', sans-serif;
  background: var(--bg);
  color: var(--text);
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: background .3s, color .3s;
}
.theme-toggle {
  position: fixed;
  top: 16px;
  right: 16px;
  width: 40px;
  height: 40px;
  border: 1px solid var(--border);
  border-radius: 50%;
  background: var(--surface);
  color: var(--text);
  font-size: 20px;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 100;
  transition: all .2s;
}
.theme-toggle:hover { border-color: var(--primary); box-shadow: var(--glow); }
.auth-card {
  background: var(--surface);
  border-radius: 16px;
  box-shadow: var(--shadow);
  padding: 40px;
  width: 100%;
  max-width: 400px;
  transition: background .3s;
  border: 1px solid var(--border);
}
.auth-card h1 {
  color: var(--primary);
  font-size: 28px;
  margin-bottom: 4px;
  font-weight: 800;
  letter-spacing: -0.5px;
}
.auth-card .subtitle {
  color: var(--text-secondary);
  font-size: 14px;
  margin-bottom: 28px;
}
.field {
  margin-bottom: 18px;
}
.field label {
  display: block;
  font-weight: 600;
  font-size: 13px;
  margin-bottom: 6px;
  color: var(--text-secondary);
  text-transform: uppercase;
  letter-spacing: 0.5px;
}
.field input {
  width: 100%;
  padding: 12px 14px;
  border: 1px solid var(--border);
  border-radius: 8px;
  background: var(--input-bg);
  color: var(--text);
  font-size: 15px;
  font-family: 'Inter', sans-serif;
  outline: none;
  transition: border .2s, box-shadow .2s;
}
.field input:focus { border-color: var(--primary); box-shadow: var(--glow); }
.btn {
  width: 100%;
  padding: 12px;
  border: none;
  border-radius: 8px;
  background: var(--primary);
  color: var(--primary-text);
  font-weight: 700;
  font-size: 15px;
  font-family: 'Inter', sans-serif;
  cursor: pointer;
  transition: all .2s;
  text-transform: uppercase;
  letter-spacing: 0.5px;
}
.btn:hover { background: var(--primary-hover); box-shadow: 0 0 32px rgba(0,229,255,0.4); transform: translateY(-1px); }
.btn:disabled { opacity: .5; cursor: wait; transform: none; }
.auth-link {
  text-align: center;
  margin-top: 20px;
  font-size: 14px;
  color: var(--text-secondary);
}
.auth-link a {
  color: var(--primary);
  text-decoration: none;
  font-weight: 600;
}
.auth-link a:hover { text-decoration: underline; }
.status {
  padding: 10px 14px;
  border-radius: 8px;
  margin-bottom: 16px;
  font-size: 13px;
  display: none;
}
.status.show { display: block; }
.status.error { background: var(--error-bg); color: var(--error-text); border: 1px solid var(--error-border); }
.status.ok { background: var(--ok-bg); color: var(--ok-text); border: 1px solid var(--ok-border); }
.backend-url-field {
  font-size: 12px;
  color: var(--text-secondary);
  margin-bottom: 16px;
}
.backend-url-field input {
  width: 100%;
  padding: 8px 10px;
  border: 1px solid var(--border);
  border-radius: 6px;
  background: var(--input-bg);
  color: var(--text);
  font-size: 13px;
  font-family: monospace;
  margin-top: 4px;
  outline: none;
}
.backend-url-field input:focus { border-color: var(--input-focus); }