/* Login Page — Dark Space Theme */

body {
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
  margin: 0;
  padding: 0;
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--text-primary);
}

.login-container {
  background: var(--surface);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  padding: 48px 40px;
  border-radius: var(--radius-xl);
  border: 1px solid var(--border);
  box-shadow: var(--glow-card);
  width: 100%;
  max-width: 420px;
  margin: 20px;
  animation: loginSlideIn 0.7s var(--ease);
}

@keyframes loginSlideIn {
  from { opacity: 0; transform: translateY(30px) scale(0.97); }
  to { opacity: 1; transform: translateY(0) scale(1); }
}

.login-header {
  text-align: center;
  margin-bottom: 36px;
}

.login-header h2 {
  color: var(--text-primary);
  margin-bottom: 8px;
  font-size: 28px;
  font-weight: 800;
  letter-spacing: -0.5px;
  background: var(--gradient-primary);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.login-header p {
  color: var(--text-secondary);
  margin: 0;
  font-size: 14px;
  font-weight: 500;
}

.form-group {
  margin-bottom: 22px;
}

label {
  display: block;
  margin-bottom: 8px;
  font-weight: 600;
  color: var(--text-secondary);
  font-size: 13px;
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

input[type="text"],
input[type="password"] {
  width: 100%;
  padding: 14px 18px;
  font-size: 15px;
  font-family: 'Inter', sans-serif;
  background: rgba(10, 15, 35, 0.6);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  box-sizing: border-box;
  color: var(--text-primary);
  transition: all 0.3s var(--ease);
}

input[type="text"]::placeholder,
input[type="password"]::placeholder {
  color: var(--text-muted);
}

input[type="text"]:focus,
input[type="password"]:focus {
  outline: none;
  border-color: var(--cyan);
  box-shadow: 0 0 0 3px rgba(0, 212, 255, 0.1), var(--glow-cyan);
  background: rgba(10, 15, 35, 0.8);
}

.login-button {
  width: 100%;
  padding: 14px;
  background: var(--gradient-primary);
  color: white;
  border: none;
  border-radius: var(--radius-md);
  font-size: 15px;
  font-weight: 700;
  font-family: 'Inter', sans-serif;
  cursor: pointer;
  transition: all 0.3s var(--ease);
  text-transform: uppercase;
  letter-spacing: 1px;
  position: relative;
  overflow: hidden;
}

.login-button::before {
  content: '';
  position: absolute;
  top: 0;
  left: -100%;
  width: 100%;
  height: 100%;
  background: linear-gradient(90deg, transparent, rgba(255,255,255,0.15), transparent);
  transition: left 0.5s;
}

.login-button:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 25px rgba(0, 212, 255, 0.25), var(--glow-cyan);
}

.login-button:hover::before {
  left: 100%;
}

.login-button:active {
  transform: translateY(0);
}

.flash {
  margin-bottom: 20px;
  padding: 12px 16px;
  border-radius: var(--radius-md);
  font-size: 14px;
  border: 1px solid;
}

.success {
  background: rgba(16, 185, 129, 0.15);
  color: var(--success);
  border-color: rgba(16, 185, 129, 0.3);
}

.error {
  background: rgba(239, 68, 68, 0.15);
  color: var(--danger);
  border-color: rgba(239, 68, 68, 0.3);
}

.input-icon {
  position: relative;
}

.input-icon input {
  padding-left: 48px;
}

.input-icon::before {
  content: '';
  position: absolute;
  left: 16px;
  top: 50%;
  transform: translateY(-50%);
  width: 16px;
  height: 16px;
  background-size: contain;
  opacity: 0.5;
}

.username-icon::before {
  background-image: url('data:image/svg+xml;utf8,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24" fill="%2300d4ff"><path d="M12 12c2.21 0 4-1.79 4-4s-1.79-4-4-4-4 1.79-4 4 1.79 4 4 4zm0 2c-2.67 0-8 1.34-8 4v2h16v-2c0-2.66-5.33-4-8-4z"/></svg>');
}

.password-icon::before {
  background-image: url('data:image/svg+xml;utf8,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24" fill="%2300d4ff"><path d="M18 8h-1V6c0-2.76-2.24-5-5-5S7 3.24 7 6v2H6c-1.1 0-2 .9-2 2v10c0 1.1.9 2 2 2h12c1.1 0 2-.9 2-2V10c0-1.1-.9-2-2-2zM9 6c0-1.66 1.34-3 3-3s3 1.34 3 3v2H9V6z"/></svg>');
}