*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  font-family: 'Plus Jakarta Sans', sans-serif;
  color: #1E2436;
  background: #FAFAF8;
  -webkit-font-smoothing: antialiased;
  min-height: 100vh;
  overflow-x: hidden;
}

html { overflow-x: hidden; }

.btn-brand {
  background: linear-gradient(135deg, #372D82 0%, #6B5EC8 100%);
  box-shadow: 0 4px 18px -4px rgba(75,58,164,.38);
  color: #fff;
  font-weight: 600;
  transition: transform .22s, box-shadow .22s;
}
.btn-brand:hover { transform: translateY(-2px); box-shadow: 0 8px 28px -6px rgba(75,58,164,.50); }

.btn-pink {
  background: linear-gradient(135deg, #C8405A 0%, #E0607A 100%);
  box-shadow: 0 4px 18px -4px rgba(224,96,122,.38);
  color: #fff;
  font-weight: 600;
  transition: transform .22s, box-shadow .22s;
}
.btn-pink:hover { transform: translateY(-2px); box-shadow: 0 8px 28px -6px rgba(224,96,122,.50); }

.btn-outline-brand { border: 2px solid #4B3AA4; color: #4B3AA4; transition: all .22s; }
.btn-outline-brand:hover { background: #F5F3FF; transform: translateY(-1px); }

.form-input { outline: none; transition: border-color .2s, box-shadow .2s; width: 100%; }
.form-input:focus { border-color: #4B3AA4; box-shadow: 0 0 0 3px rgba(75,58,164,.13); }
.form-input-pink:focus { border-color: #E0607A; box-shadow: 0 0 0 3px rgba(224,96,122,.13); }

.social-btn {
  border: 1.5px solid #DDD9F5;
  background: #fff;
  transition: border-color .2s, box-shadow .2s;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  font-size: 14px;
  font-weight: 500;
  color: #3D4566;
  border-radius: 12px;
  padding: 10px 16px;
  width: 100%;
  cursor: pointer;
}
.social-btn:hover { border-color: #B5ACEE; box-shadow: 0 2px 12px -4px rgba(75,58,164,.18); }

.divider {
  display: flex;
  align-items: center;
  gap: 12px;
  color: #7480A0;
  font-size: 12px;
  font-weight: 500;
}
.divider::before, .divider::after { content: ''; flex: 1; height: 1px; background: #DDD9F5; }

.page { display: none; }
.page.active { display: flex; }

#mobile-menu { display: none; }
#mobile-menu.open { display: flex; }

@keyframes fadeUp { from { opacity: 0; transform: translateY(16px); } to { opacity: 1; transform: translateY(0); } }
.fade-up { animation: fadeUp .5s ease both; }

.password-toggle {
  color: #7480A0;
  width: 32px;
  height: 32px;
  border-radius: 10px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  transition: background-color .2s, color .2s;
}
.password-toggle:hover {
  color: #4B3AA4;
  background: #F5F3FF;
}

.form-input.is-invalid {
  border-color: #dc2626 !important;
  box-shadow: 0 0 0 3px rgba(220, 38, 38, .12) !important;
}

.auth-feedback {
  margin-top: 6px;
  font-size: 12px;
  line-height: 1.4;
}

.auth-feedback.error {
  color: #dc2626;
}

.auth-feedback.success {
  color: #15803d;
}

.auth-success-box {
  margin-bottom: 20px;
  border-radius: 16px;
  border: 1px solid #bbf7d0;
  background: #f0fdf4;
  color: #166534;
  padding: 12px 14px;
  font-size: 14px;
}

.password-strength-wrap {
  margin-top: 8px;
}

.password-strength-text {
  font-size: 12px;
  color: #64748b;
}

.password-strength-text[data-level="1"] { color: #b91c1c; }
.password-strength-text[data-level="2"] { color: #b45309; }
.password-strength-text[data-level="3"] { color: #15803d; }

.password-strength-bar {
  margin-top: 6px;
  width: 100%;
  height: 6px;
  border-radius: 999px;
  background: #e5e7eb;
  overflow: hidden;
}

.password-strength-bar::after {
  content: '';
  display: block;
  width: 0%;
  height: 100%;
  border-radius: 999px;
  transition: width .2s ease, background-color .2s ease;
}

.password-strength-bar[data-level="1"]::after {
  width: 33%;
  background: #dc2626;
}

.password-strength-bar[data-level="2"]::after {
  width: 66%;
  background: #f59e0b;
}

.password-strength-bar[data-level="3"]::after {
  width: 100%;
  background: #16a34a;
}