:root {
  --bg-primary: #07090e;
  --bg-card: rgba(15, 23, 42, 0.75);
  --border-card: rgba(255, 255, 255, 0.08);
  --accent-cyan: #00f2fe;
  --accent-magenta: #ff0050;
  --text-main: #f8fafc;
  --text-muted: #94a3b8;
  --text-dim: #64748b;
  --input-bg: rgba(2, 6, 23, 0.6);
  --input-border: rgba(255, 255, 255, 0.12);
  --input-focus: #38bdf8;
  --danger: #ef4444;
  --success: #10b981;
}

* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
  font-family: 'Outfit', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
}

body {
  min-height: 100vh;
  background-color: var(--bg-primary);
  background-image: 
    radial-gradient(circle at 15% 20%, rgba(255, 0, 80, 0.12) 0%, transparent 40%),
    radial-gradient(circle at 85% 80%, rgba(0, 242, 254, 0.12) 0%, transparent 40%),
    radial-gradient(circle at 50% 50%, rgba(15, 23, 42, 0.5) 0%, transparent 80%);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--text-main);
  padding: 20px;
  overflow: hidden;
}

.login-wrapper {
  width: 100%;
  max-width: 440px;
  position: relative;
  z-index: 10;
}

.login-card {
  background: var(--bg-card);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border: 1px solid var(--border-card);
  border-radius: 24px;
  padding: 44px 36px;
  box-shadow: 
    0 20px 40px -15px rgba(0, 0, 0, 0.7),
    0 0 0 1px rgba(255, 255, 255, 0.05);
  animation: cardFadeIn 0.6s cubic-bezier(0.16, 1, 0.3, 1);
}

@keyframes cardFadeIn {
  from {
    opacity: 0;
    transform: translateY(20px) scale(0.98);
  }
  to {
    opacity: 1;
    transform: translateY(0) scale(1);
  }
}

.login-header {
  text-align: center;
  margin-bottom: 32px;
}

.brand-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid rgba(255, 255, 255, 0.08);
  padding: 6px 14px;
  border-radius: 999px;
  font-size: 12px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--accent-cyan);
  margin-bottom: 16px;
}

.brand-badge .dot {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--accent-magenta);
  box-shadow: 0 0 8px var(--accent-magenta);
}

.login-header h1 {
  font-size: 28px;
  font-weight: 700;
  letter-spacing: -0.02em;
  margin-bottom: 8px;
  background: linear-gradient(135deg, #ffffff 40%, #94a3b8 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.login-header p {
  color: var(--text-muted);
  font-size: 14px;
  line-height: 1.5;
}

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

.form-label {
  display: block;
  font-size: 13px;
  font-weight: 500;
  color: var(--text-muted);
  margin-bottom: 8px;
}

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

.input-icon {
  position: absolute;
  left: 16px;
  color: var(--text-dim);
  font-size: 18px;
  pointer-events: none;
  transition: color 0.2s ease;
}

.form-input {
  width: 100%;
  background: var(--input-bg);
  border: 1px solid var(--input-border);
  border-radius: 14px;
  padding: 14px 16px 14px 44px;
  color: var(--text-main);
  font-size: 15px;
  outline: none;
  transition: all 0.2s ease;
}

.form-input:focus {
  border-color: var(--input-focus);
  background: rgba(2, 6, 23, 0.85);
  box-shadow: 0 0 0 3px rgba(56, 189, 248, 0.15);
}

.form-input:focus + .input-icon,
.input-container:focus-within .input-icon {
  color: var(--accent-cyan);
}

.password-toggle {
  position: absolute;
  right: 14px;
  background: none;
  border: none;
  color: var(--text-dim);
  cursor: pointer;
  padding: 4px;
  font-size: 18px;
  transition: color 0.2s;
}

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

.login-options {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 24px;
  font-size: 13px;
}

.remember-label {
  display: flex;
  align-items: center;
  gap: 8px;
  color: var(--text-muted);
  cursor: pointer;
}

.remember-label input[type="checkbox"] {
  accent-color: var(--accent-cyan);
  width: 16px;
  height: 16px;
  border-radius: 4px;
  cursor: pointer;
}

.btn-submit {
  width: 100%;
  padding: 14px;
  background: linear-gradient(135deg, #0284c7 0%, #0369a1 100%);
  border: 1px solid rgba(255, 255, 255, 0.15);
  border-radius: 14px;
  color: #ffffff;
  font-size: 15px;
  font-weight: 600;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  box-shadow: 0 8px 20px -6px rgba(2, 132, 199, 0.5);
  transition: all 0.2s ease;
}

.btn-submit:hover {
  background: linear-gradient(135deg, #0ea5e9 0%, #0284c7 100%);
  transform: translateY(-1px);
  box-shadow: 0 12px 24px -6px rgba(2, 132, 199, 0.6);
}

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

.btn-submit:disabled {
  opacity: 0.6;
  cursor: not-allowed;
  transform: none;
}

.spinner {
  width: 18px;
  height: 18px;
  border: 2px solid rgba(255, 255, 255, 0.3);
  border-top-color: #ffffff;
  border-radius: 50%;
  animation: spin 0.8s linear infinite;
  display: none;
}

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

.alert-message {
  margin-top: 18px;
  padding: 12px 16px;
  border-radius: 12px;
  font-size: 13px;
  display: none;
  animation: alertFadeIn 0.3s ease;
}

@keyframes alertFadeIn {
  from { opacity: 0; transform: translateY(-6px); }
  to { opacity: 1; transform: translateY(0); }
}

.alert-message.error {
  background: rgba(239, 68, 68, 0.12);
  border: 1px solid rgba(239, 68, 68, 0.3);
  color: #fca5a5;
  display: flex;
  align-items: center;
  gap: 8px;
}

.alert-message.success {
  background: rgba(16, 185, 129, 0.12);
  border: 1px solid rgba(16, 185, 129, 0.3);
  color: #6ee7b7;
  display: flex;
  align-items: center;
  gap: 8px;
}

.login-footer {
  text-align: center;
  margin-top: 24px;
  font-size: 12px;
  color: var(--text-dim);
}