:root {
  --login-bg: #2a3040;
  --login-bg-soft: #303749;
  --login-text: #f1f3f8;
  --login-text-muted: rgba(241, 243, 248, 0.68);
  --login-text-dim: rgba(241, 243, 248, 0.50);
  --login-text-faint: rgba(241, 243, 248, 0.34);
  --login-border: rgba(255, 255, 255, 0.10);
  --login-border-strong: rgba(255, 255, 255, 0.18);
  --login-card-bg: #ffffff;
  --login-card-text: #0f172a;
  --login-card-text-muted: #475569;
  --login-card-text-dim: #64748b;
  --login-card-text-faint: #94a3b8;
  --login-card-border: rgba(15, 23, 42, 0.08);
  --login-input-bg: #ffffff;
  --login-input-border: rgba(15, 23, 42, 0.14);
  --login-teal: #00C8B4;
  --login-orange: #FF7800;
  --login-error: #b91c1c;
  --login-error-bg: #fef2f2;
  --login-error-border: #fecaca;
}

* { box-sizing: border-box; }

html, body {
  margin: 0;
  padding: 0;
  min-height: 100%;
  background: var(--login-bg);
  color: var(--login-text);
  font-family: 'Poppins', -apple-system, BlinkMacSystemFont, sans-serif;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

.login-page {
  position: relative;
  min-height: 100vh;
  width: 100%;
  overflow: hidden;
  display: flex;
  flex-direction: column;
  background: var(--login-bg);
}

.login-bg-glow,
.login-bg-pattern,
.login-bg-grid {
  position: absolute;
  inset: 0;
  pointer-events: none;
  z-index: 0;
}

.login-bg-glow {
  background-image:
    radial-gradient(65rem 45rem at 18% 8%, rgba(0, 200, 180, 0.12), transparent 65%),
    radial-gradient(50rem 36rem at 88% 92%, rgba(255, 120, 0, 0.09), transparent 65%),
    radial-gradient(34rem 26rem at 50% 50%, rgba(148, 163, 184, 0.06), transparent 65%);
}

.login-bg-pattern {
  background-image:
    radial-gradient(rgba(255, 255, 255, 0.05) 1px, transparent 1px),
    radial-gradient(rgba(255, 255, 255, 0.03) 1px, transparent 1px);
  background-size: 30px 30px, 30px 30px;
  background-position: 0 0, 15px 15px;
  -webkit-mask-image: radial-gradient(ellipse at center, black 30%, transparent 85%);
          mask-image: radial-gradient(ellipse at center, black 30%, transparent 85%);
}

.login-bg-grid {
  opacity: 0.35;
  background-image:
    linear-gradient(to right, rgba(255, 255, 255, 0.03) 1px, transparent 1px),
    linear-gradient(to bottom, rgba(255, 255, 255, 0.03) 1px, transparent 1px);
  background-size: 64px 64px;
  -webkit-mask-image: radial-gradient(ellipse at center, black 25%, transparent 80%);
          mask-image: radial-gradient(ellipse at center, black 25%, transparent 80%);
}

.login-main {
  position: relative;
  z-index: 1;
  flex: 1;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 32px 16px;
}

.login-card-wrap {
  width: 100%;
  max-width: 26rem;
}
.login-card {
  border-radius: 16px;
  border: 1px solid var(--login-card-border);
  background: var(--login-card-bg);
  color: var(--login-card-text);
  padding: 32px;
  box-shadow:
    0 1px 0 rgba(255, 255, 255, 0.6) inset,
    0 24px 60px -16px rgba(0, 0, 0, 0.55);
}
.login-card-logo {
  display: flex;
  justify-content: center;
  margin-bottom: 8px;
}
.login-card-logo img {
  height: 96px;
  width: auto;
  display: block;
}

.login-card h1 {
  margin: 0;
  font-size: 22px;
  text-align: center;
  color: var(--login-card-text);
  font-weight: 700;
  color: var(--login-text);
  letter-spacing: -0.3px;
}
.login-card .login-sub {
  margin: 6px 0 0;
  font-size: 14px;
  color: var(--login-card-text-muted);
  text-align: center;
}

.login-alert {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  margin-top: 20px;
  padding: 12px 14px;
  border-radius: 10px;
  background: var(--login-error-bg);
  border: 1px solid var(--login-error-border);
  color: var(--login-error);
  font-size: 13px;
  line-height: 1.45;
}
.login-alert svg {
  width: 16px;
  height: 16px;
  flex-shrink: 0;
  margin-top: 1px;
}

.login-form {
  margin-top: 22px;
  display: flex;
  flex-direction: column;
  gap: 14px;
}
.login-form label {
  display: block;
  font-size: 12px;
  font-weight: 500;
  color: var(--login-card-text-muted);
  margin-bottom: 7px;
}
.login-form input[type="text"],
.login-form input[type="email"],
.login-form input[type="password"] {
  width: 100%;
  padding: 11px 14px;
  font-size: 14px;
  font-family: inherit;
  color: var(--login-card-text);
  background: var(--login-input-bg);
  border: 1px solid var(--login-input-border);
  border-radius: 10px;
  transition: border-color 0.15s ease, box-shadow 0.15s ease;
}
.login-form input::placeholder { color: var(--login-card-text-faint); }
.login-form input:hover { border-color: rgba(15, 23, 42, 0.22); }
.login-form input:focus {
  outline: none;
  border-color: var(--login-teal);
  box-shadow: 0 0 0 3px rgba(0, 200, 180, 0.18);
}
.login-form input[readonly] { opacity: 0.65; cursor: not-allowed; }

.btn-primary {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  width: 100%;
  padding: 12px 16px;
  font-size: 14px;
  font-weight: 600;
  font-family: inherit;
  color: #ffffff;
  background: var(--login-orange);
  border: none;
  border-radius: 10px;
  cursor: pointer;
  transition: background-color 0.15s ease, opacity 0.15s ease;
}
.btn-primary:hover { background: #ff8a1f; }
.btn-primary:disabled { opacity: 0.65; cursor: not-allowed; }

.btn-link {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 100%;
  margin-top: 4px;
  padding: 10px 16px;
  font-size: 13px;
  font-family: inherit;
  color: var(--login-card-text-muted);
  background: transparent;
  border: 1px solid var(--login-card-border);
  border-radius: 10px;
  text-decoration: none;
  transition: background-color 0.15s ease, color 0.15s ease, border-color 0.15s ease;
}
.btn-link:hover {
  color: var(--login-card-text);
  background: rgba(15, 23, 42, 0.04);
  border-color: rgba(15, 23, 42, 0.18);
}

.btn-spinner {
  width: 14px;
  height: 14px;
  border: 2px solid rgba(255, 255, 255, 0.4);
  border-top-color: #ffffff;
  border-radius: 50%;
  animation: btn-spin 0.65s linear infinite;
  flex-shrink: 0;
}
@keyframes btn-spin { to { transform: rotate(360deg); } }

.login-divider {
  display: flex;
  align-items: center;
  gap: 12px;
  margin: 22px 0;
  color: var(--login-card-text-faint);
  font-size: 11px;
  letter-spacing: 0.6px;
  text-transform: uppercase;
}
.login-divider::before,
.login-divider::after {
  content: '';
  flex: 1;
  height: 1px;
  background: var(--login-card-border);
}

.btn-microsoft {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 12px;
  width: 100%;
  padding: 12px 16px;
  font-size: 14px;
  font-weight: 600;
  font-family: inherit;
  color: var(--login-card-text);
  background: #ffffff;
  border: 1px solid var(--login-input-border);
  border-radius: 10px;
  cursor: pointer;
  text-decoration: none;
  transition: background-color 0.18s ease, border-color 0.18s ease, box-shadow 0.18s ease;
}
.btn-microsoft:hover {
  background: #f8fafc;
  border-color: rgba(15, 23, 42, 0.22);
  box-shadow: 0 6px 16px rgba(15, 23, 42, 0.08);
}
.btn-microsoft .ms-tile { width: 16px; height: 16px; flex-shrink: 0; }
.btn-microsoft .ms-arrow {
  width: 16px;
  height: 16px;
  margin-left: 2px;
  color: #475569;
  transition: transform 0.18s ease;
}
.btn-microsoft:hover .ms-arrow { transform: translateX(3px); }

.login-helper {
  margin: 22px 0 0;
  text-align: center;
  font-size: 12px;
  color: var(--login-text-dim);
}

.login-footer {
  position: relative;
  z-index: 1;
  padding: 20px 24px 24px;
  text-align: center;
  font-size: 11px;
  color: var(--login-text-faint);
}

.login-step { display: none; }
.login-step.active { display: block; }