:root {
  --brand: #1a6fc4;
  --brand-dark: #134f8e;
  --brand-light: #e8f1fb;
  --accent: #f59e0b;
  --danger: #ef4444;
  --gray-50: #f8fafc;
  --gray-100: #f1f5f9;
  --gray-200: #e2e8f0;
  --gray-400: #94a3b8;
  --gray-500: #64748b;
  --gray-700: #334155;
  --gray-800: #1e293b;
  --gray-900: #0f172a;
  --shadow-lg: 0 8px 30px rgba(0, 0, 0, 0.13);
}

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

body {
  font-family: 'Segoe UI', system-ui, -apple-system, sans-serif;
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  background: linear-gradient(135deg, #1a6fc4 0%, #0d3d70 100%);
  color: var(--gray-800);
}

.login-screen {
  width: 100%;
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 24px;
}

.login-card {
  background: #fff;
  border-radius: 18px;
  box-shadow: var(--shadow-lg);
  padding: 48px 40px;
  width: 100%;
  max-width: 420px;
  text-align: center;
  position: relative;
}

.login-trap {
  position: absolute;
  left: -9999px;
  width: 1px;
  height: 1px;
  opacity: 0;
  pointer-events: none;
  overflow: hidden;
}

.login-logo-img {
  display: block;
  width: min(100%, 240px);
  height: auto;
  margin: 0 auto 20px;
  object-fit: contain;
}

.login-card h1 {
  font-size: 22px;
  font-weight: 800;
  color: var(--gray-900);
  margin-bottom: 4px;
}

.login-card .subtitle {
  color: var(--gray-500);
  font-size: 13.5px;
  margin-bottom: 30px;
}

.form-group {
  margin-bottom: 18px;
  text-align: left;
}

.form-group label {
  display: block;
  font-size: 13px;
  font-weight: 600;
  color: var(--gray-700);
  margin-bottom: 6px;
}

.form-group input {
  width: 100%;
  padding: 11px 14px;
  border: 1.5px solid var(--gray-200);
  border-radius: 8px;
  font-size: 14px;
  color: var(--gray-800);
  background: var(--gray-50);
  outline: none;
  transition: border 0.2s;
}

.form-group input:focus {
  border-color: var(--brand);
  background: #fff;
}

.password-field {
  position: relative;
}

.password-field input {
  padding-right: 44px;
}

.password-toggle {
  position: absolute;
  right: 4px;
  top: 50%;
  transform: translateY(-50%);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 36px;
  height: 36px;
  padding: 0;
  border: none;
  border-radius: 6px;
  background: transparent;
  color: var(--gray-400);
  cursor: pointer;
  transition: color 0.2s, background 0.2s;
}

.password-toggle:hover {
  color: var(--gray-700);
  background: var(--gray-100);
}

.password-toggle:focus-visible {
  outline: 2px solid var(--brand);
  outline-offset: 1px;
}

.icon-svg {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 18px;
  height: 18px;
  color: inherit;
}

.icon-svg svg {
  width: 100%;
  height: 100%;
  fill: none;
  stroke: currentColor;
  stroke-width: 2;
  stroke-linecap: round;
  stroke-linejoin: round;
}

.btn-primary {
  width: 100%;
  padding: 13px;
  background: var(--brand);
  color: #fff;
  border: none;
  border-radius: 8px;
  font-size: 15px;
  font-weight: 700;
  cursor: pointer;
  transition: background 0.2s, transform 0.1s;
  margin-top: 6px;
}

.btn-primary:hover:not(:disabled) {
  background: var(--brand-dark);
}

.btn-primary:active:not(:disabled) {
  transform: scale(0.98);
}

.btn-primary:disabled {
  opacity: 0.65;
  cursor: wait;
}

.login-footer {
  margin-top: 22px;
  font-size: 12px;
  color: var(--gray-400);
}

.login-error {
  display: none;
  margin-bottom: 16px;
  padding: 10px 12px;
  border-radius: 8px;
  background: #fef2f2;
  border: 1px solid #fecaca;
  color: #b91c1c;
  font-size: 13px;
  text-align: left;
}

.login-error.visible {
  display: block;
}

.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  border: 0;
}