:root {
  --bg: #f0f2f5;
  --card-bg: #fff;
  --text: #1a1a2e;
  --text-secondary: #6b7280;
  --primary: #4f46e5;
  --primary-hover: #4338ca;
  --error: #ef4444;
  --error-bg: #fef2f2;
  --border: #e5e7eb;
  --shadow: 0 1px 3px rgba(0, 0, 0, 0.08), 0 1px 2px rgba(0, 0, 0, 0.06);
  --shadow-lg: 0 10px 25px rgba(0, 0, 0, 0.08);
}

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

body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  background: var(--bg);
  color: var(--text);
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
}

.login-container {
  background: var(--card-bg);
  border-radius: 16px;
  box-shadow: var(--shadow-lg);
  padding: 40px 36px;
  width: 100%;
  max-width: 400px;
  margin: 20px;
}

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

.login-icon {
  font-size: 48px;
  margin-bottom: 12px;
}

.login-header h1 {
  font-size: 22px;
  font-weight: 700;
  margin-bottom: 8px;
  color: var(--text);
}

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

.login-form {
  display: flex;
  flex-direction: column;
  gap: 20px;
}

.form-group {
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.form-group label {
  font-size: 14px;
  font-weight: 500;
  color: var(--text);
}

.form-group input {
  height: 46px;
  padding: 0 14px;
  border: 1.5px solid var(--border);
  border-radius: 10px;
  font-size: 16px;
  color: var(--text);
  outline: none;
  transition:
    border-color 0.2s,
    box-shadow 0.2s;
}

.form-group input::placeholder {
  color: #9ca3af;
  font-size: 15px;
}

.form-group input:focus {
  border-color: var(--primary);
  box-shadow: 0 0 0 3px rgba(79, 70, 229, 0.1);
}

.form-group input.input-error {
  border-color: var(--error);
  box-shadow: 0 0 0 3px rgba(239, 68, 68, 0.1);
}

.error-msg {
  display: none;
  font-size: 13px;
  color: var(--error);
  padding: 6px 10px;
  background: var(--error-bg);
  border-radius: 6px;
}

.error-msg.global-error {
  text-align: center;
}

.btn-submit {
  height: 48px;
  background: var(--primary);
  color: #fff;
  border: none;
  border-radius: 10px;
  font-size: 16px;
  font-weight: 600;
  cursor: pointer;
  transition:
    background 0.2s,
    transform 0.1s;
}

.btn-submit:hover {
  background: var(--primary-hover);
}

.btn-submit:active {
  transform: scale(0.98);
}

.btn-submit:disabled {
  background: #a5b4fc;
  cursor: not-allowed;
  transform: none;
}

.login-footer {
  margin-top: 32px;
  text-align: center;
  font-size: 12px;
  color: var(--text-secondary);
}