:root {
  --bg-dark: #090d16;
  --card-bg: rgba(18, 24, 38, 0.85);
  --border-color: rgba(255, 255, 255, 0.08);
  --border-hover: rgba(255, 109, 90, 0.4);
  --text-primary: #f1f5f9;
  --text-secondary: #94a3b8;
  --primary-accent: #ff6d5a; /* n8n vibrant coral */
  --primary-hover: #ff523d;
  --input-bg: rgba(10, 15, 26, 0.8);
  --error-bg: rgba(239, 68, 68, 0.12);
  --error-border: rgba(239, 68, 68, 0.3);
  --error-text: #fca5a5;
  --radius: 12px;
}

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

body {
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
  background-color: var(--bg-dark);
  color: var(--text-primary);
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 20px;
  position: relative;
  overflow: hidden;
}

.login-bg-glow {
  position: absolute;
  width: 500px;
  height: 500px;
  background: radial-gradient(circle, rgba(255, 109, 90, 0.15) 0%, rgba(139, 92, 246, 0.08) 40%, transparent 70%);
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  pointer-events: none;
  z-index: 0;
}

.login-container {
  width: 100%;
  max-width: 420px;
  position: relative;
  z-index: 1;
}

.login-card {
  background: var(--card-bg);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border: 1px solid var(--border-color);
  border-radius: var(--radius);
  padding: 40px 32px;
  box-shadow: 0 20px 40px -15px rgba(0, 0, 0, 0.5);
  animation: fadeIn 0.4s ease-out;
}

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

.brand-header {
  text-align: center;
  margin-bottom: 24px;
}

.brand-logo {
  width: 56px;
  height: 56px;
  background: rgba(255, 109, 90, 0.12);
  border: 1px solid rgba(255, 109, 90, 0.25);
  border-radius: 14px;
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto 16px;
  box-shadow: 0 0 20px rgba(255, 109, 90, 0.15);
}

.brand-title {
  font-size: 1.5rem;
  font-weight: 700;
  letter-spacing: -0.02em;
  color: var(--text-primary);
}

.brand-tag {
  display: inline-block;
  font-size: 0.75rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--primary-accent);
  background: rgba(255, 109, 90, 0.1);
  padding: 3px 10px;
  border-radius: 20px;
  margin-top: 6px;
}

.login-subtitle {
  font-size: 0.88rem;
  color: var(--text-secondary);
  text-align: center;
  margin-bottom: 28px;
  line-height: 1.5;
}

.alert-box {
  background: var(--error-bg);
  border: 1px solid var(--error-border);
  color: var(--error-text);
  padding: 12px 16px;
  border-radius: 8px;
  font-size: 0.85rem;
  margin-bottom: 20px;
  animation: shake 0.3s ease-in-out;
}

@keyframes shake {
  0%, 100% { transform: translateX(0); }
  25% { transform: translateX(-4px); }
  75% { transform: translateX(4px); }
}

.form-group {
  margin-bottom: 20px;
}

label {
  display: block;
  font-size: 0.82rem;
  font-weight: 500;
  color: var(--text-secondary);
  margin-bottom: 8px;
}

.input-wrapper {
  position: relative;
  display: flex;
  align-items: center;
}

input {
  width: 100%;
  background: var(--input-bg);
  border: 1px solid var(--border-color);
  border-radius: 8px;
  padding: 12px 16px;
  font-size: 0.95rem;
  color: var(--text-primary);
  font-family: inherit;
  transition: all 0.2s ease;
  outline: none;
}

input:focus {
  border-color: var(--primary-accent);
  box-shadow: 0 0 0 3px rgba(255, 109, 90, 0.15);
}

.toggle-password {
  position: absolute;
  right: 12px;
  background: none;
  border: none;
  color: var(--text-secondary);
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 4px;
  transition: color 0.2s;
}

.toggle-password:hover {
  color: var(--text-primary);
}

.btn-submit {
  width: 100%;
  background: var(--primary-accent);
  color: #ffffff;
  border: none;
  border-radius: 8px;
  padding: 13px 20px;
  font-size: 0.95rem;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.2s ease;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  box-shadow: 0 4px 14px rgba(255, 109, 90, 0.3);
  margin-top: 24px;
}

.btn-submit:hover {
  background: var(--primary-hover);
  transform: translateY(-1px);
  box-shadow: 0 6px 18px rgba(255, 109, 90, 0.4);
}

.btn-submit:active {
  transform: translateY(0);
}

.btn-submit:disabled {
  opacity: 0.6;
  cursor: not-allowed;
}

.btn-loader {
  width: 16px;
  height: 16px;
  border: 2px solid rgba(255, 255, 255, 0.3);
  border-radius: 50%;
  border-top-color: #ffffff;
  animation: spin 0.8s linear infinite;
}

@keyframes spin {
  to { transform: rotate(360deg); }
}

.login-footer {
  text-align: center;
  margin-top: 24px;
  padding-top: 16px;
  border-top: 1px solid var(--border-color);
  font-size: 0.78rem;
  color: var(--text-secondary);
}

.login-footer code {
  font-family: 'JetBrains Mono', monospace;
  background: rgba(255, 255, 255, 0.05);
  padding: 2px 6px;
  border-radius: 4px;
  color: #cbd5e1;
}