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

:root {
  --clr-primary: #1a73e8;
  --clr-navy:    #0f2744;
  --clr-navy2:   #1a4a8a;
  --clr-outline: #79747e;
  --clr-subtle:  #49454f;
  --clr-surface: #ffffff;
  --clr-bg:      #f0f4f8;
  --clr-error:   #b3261e;
}

body {
  min-height: 100vh;
  background: linear-gradient(135deg, var(--clr-navy) 0%, var(--clr-navy2) 100%);
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: 'Lexend', 'Roboto', system-ui, sans-serif;
  padding: 1rem;
}

.login-wrap { width: 100%; max-width: 400px; }

.login-card {
  background: var(--clr-surface);
  border-radius: 20px;
  box-shadow: 0 24px 64px rgba(0,0,0,.35);
  overflow: hidden;
}

.login-header {
  background: linear-gradient(135deg, var(--clr-navy), var(--clr-navy2));
  padding: 2.5rem 2rem 2rem;
  text-align: center;
  color: white;
}

.logo-circle {
  width: 72px; height: 72px;
  background: rgba(255,255,255,.15);
  border: 2px solid rgba(255,255,255,.3);
  border-radius: 50%;
  display: flex; align-items: center; justify-content: center;
  margin: 0 auto 1.25rem;
  font-size: 32px;
}

.login-header h4 { font-size: 1.35rem; font-weight: 700; margin-bottom: .25rem; }
.login-header small { font-size: .8rem; opacity: .75; }

.login-body { padding: 2rem; }

.alert-box {
  display: none;
  padding: .75rem 1rem;
  border-radius: 10px;
  font-size: .85rem;
  margin-bottom: 1.25rem;
}
.alert-box.danger  { background: #fdecea; color: var(--clr-error); border: 1px solid #f5c2c7; }
.alert-box.success { background: #e6f4ea; color: #1e6f37; border: 1px solid #a8d5b5; }

.mdf {
  position: relative;
  margin-bottom: 1.25rem;
}

.mdf input {
  width: 100%;
  height: 52px;
  padding: 14px 48px 14px 14px;
  border: 1.5px solid var(--clr-outline);
  border-radius: 10px;
  background: transparent;
  font-family: inherit;
  font-size: 16px;        /* ≥16px prevents iOS auto-zoom on focus */
  color: #1c1b1f;
  outline: none;
  transition: border-color .15s;
}

.mdf input:focus { border: 2px solid var(--clr-primary); }
.mdf input.error { border-color: var(--clr-error); }

.mdf label {
  position: absolute;
  left: 11px;
  top: 0;
  transform: translateY(-50%);
  font-size: 11px;
  font-weight: 500;
  color: var(--clr-subtle);
  background: var(--clr-surface);
  padding: 0 4px;
  pointer-events: none;
  line-height: 1;
  white-space: nowrap;
}

.mdf input:focus ~ label { color: var(--clr-primary); }
.mdf input.error ~ label { color: var(--clr-error); }

.mdf .field-icon {
  position: absolute;
  right: 14px;
  top: 50%;
  transform: translateY(-50%);
  color: var(--clr-outline);
  font-size: 18px;
  pointer-events: none;
}

.mdf .toggle-pwd {
  position: absolute;
  right: 10px;
  top: 50%;
  transform: translateY(-50%);
  background: none;
  border: none;
  padding: 4px 6px;
  color: var(--clr-outline);
  cursor: pointer;
  font-size: 18px;
  line-height: 1;
  display: flex;
  align-items: center;
}
.mdf .toggle-pwd:hover { color: var(--clr-primary); }

.mdf.pwd input { padding-right: 46px; }

.btn-login {
  display: block;
  width: 100%;
  padding: .8rem;
  background: linear-gradient(135deg, var(--clr-navy), var(--clr-navy2));
  color: white;
  border: none;
  border-radius: 50px;
  font-family: inherit;
  font-size: .9375rem;
  font-weight: 600;
  letter-spacing: .5px;
  cursor: pointer;
  transition: opacity .15s, transform .1s;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: .5rem;
}
.btn-login:hover:not(:disabled) { opacity: .9; }
.btn-login:active:not(:disabled) { transform: scale(.98); }
.btn-login:disabled { opacity: .65; cursor: not-allowed; }

.spinner {
  width: 18px; height: 18px;
  border: 2.5px solid rgba(255,255,255,.4);
  border-top-color: white;
  border-radius: 50%;
  animation: spin .7s linear infinite;
  display: none;
}
.btn-login.loading .spinner { display: block; }
.btn-login.loading .btn-icon,
.btn-login.loading .btn-text { display: none; }

@keyframes spin { to { transform: rotate(360deg); } }

.login-footer {
  text-align: center;
  color: #777;
  font-size: .75rem;
  padding: .85rem 2rem;
  background: #f8f9fa;
  border-top: 1px solid #eee;
}