@import url('https://fonts.googleapis.com/css2?family=Plus+Jakarta+Sans:wght@300;400;500;600;700;800&family=JetBrains+Mono:wght@400;500;600&display=swap');

:root {
  --bg-main: #07090e;
  --bg-card: rgba(13, 17, 30, 0.85);
  --border-glass: rgba(255, 255, 255, 0.1);
  --accent-cyan: #00f2fe;
  --accent-blue: #4facfe;
  --accent-purple: #7928ca;
  --accent-emerald: #10b981;
  --text-primary: #f8fafc;
  --text-secondary: #94a3b8;
  --text-muted: #64748b;
  --radius-md: 16px;
  --radius-sm: 8px;
  --shadow-glow: 0 0 35px rgba(0, 242, 254, 0.18);
  --font-sans: 'Plus Jakarta Sans', system-ui, -apple-system, sans-serif;
  --font-mono: 'JetBrains Mono', monospace;
}

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

body {
  font-family: var(--font-sans);
  background-color: var(--bg-main);
  background-image: 
    radial-gradient(circle at 20% 20%, rgba(121, 40, 202, 0.18) 0%, transparent 45%),
    radial-gradient(circle at 80% 30%, rgba(0, 242, 254, 0.14) 0%, transparent 45%),
    radial-gradient(circle at 50% 80%, rgba(16, 185, 129, 0.1) 0%, transparent 50%);
  background-attachment: fixed;
  color: var(--text-primary);
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 20px;
}

.login-container {
  width: 100%;
  max-width: 480px;
  background: var(--bg-card);
  border: 1px solid var(--border-glass);
  border-radius: var(--radius-md);
  box-shadow: 0 24px 48px rgba(0, 0, 0, 0.7), var(--shadow-glow);
  backdrop-filter: blur(28px);
  padding: 36px 32px;
  animation: fadeIn 0.4s ease;
  position: relative;
  overflow: hidden;
}

.login-container::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: linear-gradient(90deg, var(--accent-cyan), var(--accent-purple), var(--accent-emerald));
}

@keyframes fadeIn {
  from { opacity: 0; transform: translateY(12px) scale(0.98); }
  to { opacity: 1; transform: translateY(0) scale(1); }
}

.brand-header {
  text-align: center;
  margin-bottom: 28px;
}

.brand-logo {
  width: 56px;
  height: 56px;
  border-radius: 14px;
  background: linear-gradient(135deg, var(--accent-cyan), var(--accent-purple));
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto 16px auto;
  box-shadow: 0 0 20px rgba(0, 242, 254, 0.4);
}

.brand-logo svg {
  width: 32px;
  height: 32px;
  fill: #fff;
}

.brand-title {
  font-size: 1.45rem;
  font-weight: 800;
  letter-spacing: -0.02em;
  color: #fff;
}

.brand-badge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  background: rgba(0, 242, 254, 0.12);
  border: 1px solid rgba(0, 242, 254, 0.3);
  color: var(--accent-cyan);
  font-size: 0.72rem;
  font-weight: 700;
  padding: 3px 10px;
  border-radius: 20px;
  margin-top: 8px;
  font-family: var(--font-mono);
}

/* AUTH TABS */
.auth-tabs {
  display: flex;
  background: rgba(255, 255, 255, 0.04);
  border-radius: var(--radius-sm);
  padding: 4px;
  gap: 4px;
  margin-bottom: 24px;
}

.auth-tab-btn {
  flex: 1;
  background: transparent;
  border: none;
  color: var(--text-secondary);
  font-size: 0.8rem;
  font-weight: 600;
  padding: 8px 6px;
  border-radius: 6px;
  cursor: pointer;
  transition: all 0.2s ease;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
}

.auth-tab-btn:hover {
  color: #fff;
  background: rgba(255, 255, 255, 0.04);
}

.auth-tab-btn.active {
  background: rgba(0, 242, 254, 0.16);
  color: #fff;
  border: 1px solid rgba(0, 242, 254, 0.35);
  box-shadow: 0 0 12px rgba(0, 242, 254, 0.15);
}

/* FORM FIELDS */
.form-group {
  margin-bottom: 18px;
}

.form-label {
  display: block;
  font-size: 0.8rem;
  font-weight: 600;
  color: #cbd5e1;
  margin-bottom: 6px;
}

.form-control {
  width: 100%;
  background: rgba(10, 14, 26, 0.8);
  border: 1px solid rgba(255, 255, 255, 0.12);
  border-radius: var(--radius-sm);
  color: #f8fafc;
  padding: 10px 14px;
  font-size: 0.9rem;
  font-family: var(--font-sans);
  transition: all 0.2s ease;
}

.form-control:focus {
  outline: none;
  border-color: var(--accent-cyan);
  box-shadow: 0 0 12px rgba(0, 242, 254, 0.25);
  background: rgba(14, 20, 36, 0.9);
}

.form-help {
  font-size: 0.72rem;
  color: var(--text-muted);
  margin-top: 4px;
}

/* BUTTONS */
.btn-submit {
  width: 100%;
  background: linear-gradient(135deg, #00f2fe, #4facfe);
  border: none;
  color: #050b14;
  font-weight: 700;
  font-size: 0.95rem;
  padding: 12px;
  border-radius: var(--radius-sm);
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  transition: all 0.25s ease;
  box-shadow: 0 0 20px rgba(0, 242, 254, 0.3);
  margin-top: 6px;
}

.btn-submit:hover {
  transform: translateY(-1px);
  box-shadow: 0 0 28px rgba(0, 242, 254, 0.5);
  filter: brightness(1.08);
}

.btn-passkey {
  width: 100%;
  background: rgba(16, 185, 129, 0.15);
  border: 1px solid rgba(16, 185, 129, 0.4);
  color: #34d399;
  font-weight: 700;
  font-size: 0.95rem;
  padding: 14px;
  border-radius: var(--radius-sm);
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  transition: all 0.25s ease;
  box-shadow: 0 0 20px rgba(16, 185, 129, 0.2);
}

.btn-passkey:hover {
  background: rgba(16, 185, 129, 0.25);
  border-color: #10b981;
  box-shadow: 0 0 28px rgba(16, 185, 129, 0.4);
  color: #fff;
  transform: translateY(-1px);
}

.btn-secondary {
  width: 100%;
  background: rgba(255, 255, 255, 0.06);
  border: 1px solid rgba(255, 255, 255, 0.12);
  color: #cbd5e1;
  font-size: 0.85rem;
  font-weight: 600;
  padding: 10px;
  border-radius: var(--radius-sm);
  cursor: pointer;
  transition: all 0.2s ease;
  margin-top: 10px;
}

.btn-secondary:hover {
  background: rgba(255, 255, 255, 0.12);
  color: #fff;
}

/* PASSKEY HERO CARD */
.passkey-hero {
  text-align: center;
  padding: 20px 10px;
}

.passkey-icon-ring {
  width: 72px;
  height: 72px;
  border-radius: 50%;
  background: rgba(16, 185, 129, 0.12);
  border: 2px dashed rgba(16, 185, 129, 0.5);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 2rem;
  margin: 0 auto 16px auto;
  box-shadow: 0 0 25px rgba(16, 185, 129, 0.25);
  animation: pulseGreen 2.5s infinite ease-in-out;
}

@keyframes pulseGreen {
  0%, 100% { transform: scale(1); box-shadow: 0 0 20px rgba(16, 185, 129, 0.2); }
  50% { transform: scale(1.05); box-shadow: 0 0 35px rgba(16, 185, 129, 0.4); }
}

.passkey-title {
  font-size: 1.1rem;
  font-weight: 700;
  color: #fff;
  margin-bottom: 6px;
}

.passkey-desc {
  font-size: 0.8rem;
  color: var(--text-secondary);
  line-height: 1.4;
  margin-bottom: 22px;
}

/* SECURITY FOOTER */
.security-footer {
  margin-top: 28px;
  padding-top: 16px;
  border-top: 1px solid rgba(255, 255, 255, 0.08);
  display: flex;
  align-items: center;
  justify-content: space-between;
  font-size: 0.72rem;
  color: var(--text-muted);
}

.security-badge {
  display: flex;
  align-items: center;
  gap: 5px;
  color: #34d399;
}

/* TOAST */
.toast-msg {
  position: fixed;
  bottom: 24px;
  right: 24px;
  background: rgba(15, 23, 42, 0.95);
  border: 1px solid rgba(255, 255, 255, 0.15);
  padding: 12px 18px;
  border-radius: var(--radius-sm);
  color: #fff;
  font-size: 0.85rem;
  box-shadow: 0 10px 25px rgba(0, 0, 0, 0.6);
  z-index: 10000;
  animation: slideUp 0.25s ease;
}

.toast-msg.success {
  border-color: rgba(16, 185, 129, 0.5);
  box-shadow: 0 0 20px rgba(16, 185, 129, 0.3);
}

.toast-msg.error {
  border-color: rgba(244, 63, 94, 0.5);
  box-shadow: 0 0 20px rgba(244, 63, 94, 0.3);
}

@keyframes slideUp {
  from { opacity: 0; transform: translateY(10px); }
  to { opacity: 1; transform: translateY(0); }
}