/* Advanced Login UI Styles - Modern Warm Biscuit Theme */
:root {
  --primary-color: #b87344;
  --primary-dark: #9a5d3a;
  --secondary-color: #7d8c6b;
  --success-color: #7a8f55;
  --danger-color: #c8735f;
  --warning-color: #d9a574;
  --dark-color: #2c2926;
  --dark-surface: #3a3731;
  --dark-border: #4e4a3f;
  --light-color: #fafaf8;
  --text-primary: #2c2926;
  --text-secondary: #7c7869;
  --border-color: #e8e7e3;
  --radius: 16px;
  --radius-sm: 8px;
  --transition: 0.35s cubic-bezier(0.65, 0.05, 0.36, 1);
  --gradient-bg: #ffffff;
  --glass-bg: rgba(255, 254, 251, 0.75);
  --glass-border: rgba(232, 231, 227, 0.5);
  --shadow-lg: 0 10px 30px -10px rgba(184, 115, 68, 0.25),
    0 0 0 1px rgba(255, 254, 251, 0.05) inset;
}
body.dark {
  --glass-bg: rgba(44, 41, 38, 0.75);
  --glass-border: rgba(255, 255, 255, 0.08);
  --text-primary: #fafaf8;
  --text-secondary: #a8a599;
  --border-color: #4e4a3f;
  --gradient-bg: #ffffff;
}

html,
body {
  height: 100%;
}
body {
  font-family: "Inter", system-ui, -apple-system, "Segoe UI", sans-serif;
  background: linear-gradient(135deg, #fdf8f3 0%, #f9efe3 100%);
  margin: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 1.25rem;
  overflow-y: auto;
  min-height: 100dvh;
  box-sizing: border-box;
}

.login-container {
  width: 100%;
  max-width: 480px;
}

.card {
  position: relative;
  background: var(--glass-bg);
  backdrop-filter: blur(18px) saturate(150%);
  -webkit-backdrop-filter: blur(18px) saturate(150%);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius);
  box-shadow: var(--shadow-lg);
  overflow: hidden;
  animation: reveal 0.7s ease;
}
@keyframes reveal {
  from {
    opacity: 0;
    transform: translateY(28px) scale(0.98);
  }
  to {
    opacity: 1;
    transform: translateY(0) scale(1);
  }
}

.card-header {
  padding: 2rem 2rem 1rem;
  text-align: center;
  position: relative;
}
.mode-toggle {
  position: absolute;
  top: 14px;
  right: 14px;
  background: rgba(255, 255, 255, 0.55);
  border: 1px solid var(--glass-border);
  backdrop-filter: blur(10px);
  border-radius: 40px;
  padding: 0.5rem 0.9rem;
  font-size: 0.75rem;
  font-weight: 600;
  cursor: pointer;
  display: flex;
  gap: 0.5rem;
  align-items: center;
  color: var(--text-primary);
  transition: background 0.3s;
}
body.dark .mode-toggle {
  background: rgba(255, 255, 255, 0.08);
  color: #e5e7eb;
}
.mode-toggle:hover {
  background: rgba(255, 255, 255, 0.75);
}
body.dark .mode-toggle:hover {
  background: rgba(255, 255, 255, 0.12);
}

.logo {
  width: 70px;
  height: 70px;
  border-radius: 20px;
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto 1rem;
  position: relative;
  background: linear-gradient(135deg, #b87344 0%, #d9a574 100%);
  color: #fff;
  font-size: 1.8rem;
  box-shadow: 0 6px 16px -6px rgba(184, 115, 68, 0.6);
}
.logo:after {
  content: "";
  position: absolute;
  inset: 0;
  border-radius: inherit;
  background: linear-gradient(135deg, #b87344 0%, #d9a574 100%);
  pointer-events: none;
}

.card-title {
  font-size: 1.8rem;
  font-weight: 700;
  letter-spacing: -0.5px;
  margin: 0 0 0.35rem;
  color: var(--text-primary);
}
.card-subtitle {
  font-size: 0.875rem;
  letter-spacing: 0.5px;
  text-transform: uppercase;
  color: var(--text-secondary);
  font-weight: 600;
}

.card-body {
  padding: 1.25rem 2rem 2.25rem;
}

.alert {
  border-radius: var(--radius-sm);
  padding: 0.9rem 1rem;
  font-size: 0.85rem;
  display: flex;
  gap: 0.6rem;
  align-items: flex-start;
  border: 1px solid #fecaca;
  background: #fef2f2;
  color: #991b1b;
  animation: pop 0.4s ease;
}
@keyframes pop {
  from {
    transform: scale(0.97);
    opacity: 0;
  }
  to {
    transform: scale(1);
    opacity: 1;
  }
}

.form-group {
  margin-bottom: 1.1rem;
}
.form-label {
  font-size: 0.7rem;
  text-transform: uppercase;
  letter-spacing: 1.2px;
  font-weight: 600;
  color: var(--text-secondary);
  margin-bottom: 0.25rem;
}

.input-group {
  position: relative;
}
.input-group i.leading {
  position: absolute;
  left: 1rem;
  top: 50%;
  transform: translateY(-50%);
  /* Higher contrast & weight for better visibility */
  color: #0f172a; /* near slate-900 */
  font-weight: 600;
  font-size: 1rem;
  text-shadow: 0 1px 1px rgba(255, 255, 255, 0.85),
    0 0 0 1px rgba(255, 255, 255, 0.35);
  pointer-events: none;
}
body.dark .input-group i.leading {
  color: #f1f5f9; /* light text */
  text-shadow: 0 1px 2px rgba(0, 0, 0, 0.85);
}
/* Optional subtle focus accent */
.input-group:focus-within i.leading {
  color: #b87344;
}
body.dark .input-group:focus-within i.leading {
  color: #c88b54;
}
.input-group .toggle-pass {
  position: absolute;
  right: 0.75rem;
  top: 50%;
  transform: translateY(-50%);
  background: none;
  border: none;
  color: var(--text-secondary);
  cursor: pointer;
  display: flex;
  align-items: center;
  font-size: 0.95rem;
  padding: 0.25rem;
}
.input-group .toggle-pass:hover {
  color: var(--primary-color);
}

/* (Legacy generic .form-control block replaced by scoped glassy version below) */
.login-container .form-control {
  width: 100%;
  padding: 0.95rem 1.15rem 0.95rem 2.9rem;
  border: 1px solid #e8e7e3;
  background: #fffefb;
  backdrop-filter: blur(20px) saturate(170%);
  -webkit-backdrop-filter: blur(20px) saturate(170%);
  border-radius: 999px;
  font-size: 0.96rem;
  font-weight: 500;
  color: var(--text-primary);
  transition: background 0.45s, box-shadow 0.45s, transform 0.25s;
  position: relative;
  box-shadow: 0 2px 4px -2px rgba(0, 0, 0, 0.06);
}
body.dark .login-container .form-control {
  background: #2c2926;
  border: 1px solid #4e4a3f;
  box-shadow: 0 2px 4px -2px rgba(0, 0, 0, 0.2);
  color: #fafaf8;
  border-radius: 999px;
}
.login-container .form-control:hover {
  box-shadow: 0 2px 4px -2px rgba(0, 0, 0, 0.16),
    0 8px 18px -10px rgba(0, 0, 0, 0.22),
    0 0 0 1px rgba(255, 255, 255, 0.55) inset,
    0 1px 0 rgba(255, 255, 255, 0.68) inset;
}
body.dark .login-container .form-control:hover {
  box-shadow: 0 2px 4px -2px rgba(0, 0, 0, 0.55),
    0 10px 20px -12px rgba(0, 0, 0, 0.65),
    0 0 0 1px rgba(255, 255, 255, 0.08) inset,
    0 1px 0 rgba(255, 255, 255, 0.12) inset;
}
.login-container .form-control:focus {
  outline: none;
  background: #fffefb;
  border-color: #b87344;
  box-shadow: 0 0 0 3px rgba(184, 115, 68, 0.1);
  transform: translateY(-1px);
}
body.dark .login-container .form-control:focus {
  background: #2c2926;
  border-color: #b87344;
  box-shadow: 0 0 0 3px rgba(184, 115, 68, 0.2);
}
.login-container .form-control::placeholder {
  color: #7e8da0;
  font-weight: 400;
  letter-spacing: 0.35px;
  opacity: 0.92;
  text-shadow: 0 1px 1px rgba(255, 255, 255, 0.4);
}
body.dark .login-container .form-control::placeholder {
  color: #64748b;
  opacity: 0.85;
}
.login-container .form-control:focus::placeholder {
  opacity: 0.4;
  transition: opacity 0.35s ease;
}
.login-container .form-control:-webkit-autofill {
  -webkit-box-shadow: 0 0 0 30px rgba(255, 255, 255, 0.6) inset;
  -webkit-text-fill-color: var(--text-primary);
  border-radius: 999px;
  transition: background-color 9999s ease-in-out 0s;
}
body.dark .login-container .form-control:-webkit-autofill {
  -webkit-box-shadow: 0 0 0 30px rgba(31, 41, 55, 0.9) inset;
  -webkit-text-fill-color: #f1f5f9;
}
/* Subtle invalid state reuse */
.login-container .form-control.is-invalid,
.login-container .form-control:invalid:focus {
  border-color: #c8735f;
  background: #fffefb;
  box-shadow: 0 0 0 3px rgba(200, 115, 95, 0.1);
}
body.dark .login-container .form-control.is-invalid,
body.dark .login-container .form-control:invalid:focus {
  border-color: #c8735f;
  background: #2c2926;
  box-shadow: 0 0 0 3px rgba(200, 115, 95, 0.2);
}

/* Force perfect pill rounding even inside Bootstrap input-group adjustments */
.login-container .input-group > .form-control,
.login-container .input-group > .form-control:focus,
.login-container .input-group > .form-control:hover {
  border-radius: 999px !important; /* override Bootstrap splitting (first/last-child) */
}

/* Role glider existing container improved */
.role-toggle {
  position: relative;
  display: flex;
  background: rgba(184, 115, 68, 0.05);
  border: 2px solid var(--border-color);
  border-radius: 14px;
  padding: 5px;
  gap: 6px;
  user-select: none;
  font-weight: 600;
  overflow: hidden;
}
body.dark .role-toggle {
  background: rgba(200, 139, 84, 0.08);
  border-color: var(--dark-border);
}
.role-toggle input {
  position: absolute;
  opacity: 0;
}
.role-toggle label {
  flex: 1;
  text-align: center;
  font-size: 0.75rem;
  letter-spacing: 0.5px;
  padding: 0.65rem 0.5rem;
  cursor: pointer;
  position: relative;
  z-index: 2;
  color: var(--text-secondary);
  transition: color 0.3s;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0.4rem;
}
.role-toggle label:hover {
  color: var(--primary-color);
}
.role-toggle input:checked + label {
  color: var(--primary-color);
}
.role-toggle .role-glider {
  position: absolute;
  top: 5px;
  left: 5px;
  height: calc(100% - 10px);
  width: 50%;
  background: linear-gradient(135deg, #b87344 0%, #d9a574 100%);
  border-radius: 10px;
  box-shadow: 0 8px 24px -8px rgba(0, 0, 0, 0.25),
    0 0 0 1px rgba(255, 254, 251, 0.55) inset;
  transition: transform 0.55s cubic-bezier(0.65, 0.05, 0.36, 1),
    width 0.55s cubic-bezier(0.65, 0.05, 0.36, 1), background 0.9s ease,
    filter 0.6s ease;
  z-index: 1;
}
body.dark .role-toggle .role-glider {
  background: linear-gradient(135deg, #b87344 0%, #d9a574 100%);
  box-shadow: 0 10px 26px -10px rgba(0, 0, 0, 0.55),
    0 0 0 1px rgba(255, 255, 255, 0.07) inset;
}
.role-toggle.role-student-active .role-glider {
  background: linear-gradient(135deg, #b87344 0%, #c88b54 100%);
  filter: brightness(1.07);
}
body.dark .role-toggle.role-student-active .role-glider {
  background: linear-gradient(135deg, #b87344 0%, #c88b54 100%);
}
.role-toggle.role-shop-active .role-glider {
  background: linear-gradient(135deg, #7d8c6b 0%, #95a972 100%);
}
body.dark .role-toggle.role-shop-active .role-glider {
  background: linear-gradient(135deg, #7d8c6b 0%, #95a972 100%);
}
.role-toggle:before,
.role-toggle:after {
  content: "";
  position: absolute;
  inset: 0;
  pointer-events: none;
  opacity: 0;
  background: transparent;
  mix-blend-mode: color-dodge;
  transition: opacity 0.6s;
}
body.dark .role-toggle:before,
body.dark .role-toggle:after {
  opacity: 0.35;
  mix-blend-mode: screen;
}
/* Active label color adaptation */
.role-toggle label {
  color: var(--text-secondary);
}
.role-toggle.role-student-active input#role_student:checked + label,
.role-toggle.role-shop-active input#role_shop:checked + label {
  color: #ffffff;
  text-shadow: 0 1px 3px rgba(0, 0, 0, 0.35);
}
body.dark .role-toggle.role-student-active input#role_student:checked + label,
body.dark .role-toggle.role-shop-active input#role_shop:checked + label {
  color: #fff;
}
.role-toggle.role-student-active input#role_shop:checked + label,
.role-toggle.role-shop-active input#role_student:checked + label {
  text-shadow: none;
}

.btn-primary {
  background: linear-gradient(135deg, #b87344 0%, #d9a574 100%);
  border: none;
  width: 100%;
  padding: 0.95rem 1rem;
  border-radius: 12px;
  font-weight: 600;
  letter-spacing: 0.3px;
  font-size: 0.95rem;
  color: #fff;
  box-shadow: 0 8px 20px -8px rgba(184, 115, 68, 0.6);
  position: relative;
  overflow: hidden;
}
.btn-primary:before {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, #9a5d3a 0%, #c88b54 100%);
  opacity: 0;
  transition: opacity 0.4s;
}
.btn-primary:hover:before {
  opacity: 1;
}
.btn-primary:hover {
  transform: translateY(-2px);
}
.btn-primary:active {
  transform: translateY(0);
}
.btn-primary:disabled {
  opacity: 0.6;
  cursor: not-allowed;
  transform: none;
}

.divider {
  margin: 1.75rem 0 1.1rem;
  position: relative;
  text-align: center;
}
.divider:before {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  top: 50%;
  height: 1px;
  background: #e8e7e3;
}
.divider span {
  background: var(--glass-bg);
  padding: 0 0.75rem;
  font-size: 0.65rem;
  letter-spacing: 1px;
  font-weight: 700;
  color: var(--text-secondary);
  position: relative;
  z-index: 2;
  border: 1px solid var(--glass-border);
  border-radius: 30px;
}
body.dark .divider span {
  background: rgba(31, 41, 55, 0.9);
}

.oauth-btn {
  margin-top: 0.25rem;
  background: #fff;
  border: 2px solid #e5e7eb;
  color: #111827;
  font-weight: 600;
  border-radius: 12px;
  padding: 0.85rem 0.9rem;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0.65rem;
  font-size: 0.9rem;
  text-decoration: none;
  transition: background 0.3s, border-color 0.3s, transform 0.3s,
    box-shadow 0.35s;
  position: relative;
}
.oauth-btn:hover {
  background: #f9fafb;
  transform: translateY(-2px);
  box-shadow: 0 8px 18px -6px rgba(0, 0, 0, 0.18);
}
.oauth-btn:active {
  transform: translateY(0);
  box-shadow: 0 4px 10px -4px rgba(0, 0, 0, 0.2);
}
.oauth-btn:focus-visible {
  outline: 3px solid #b87344;
  outline-offset: 2px;
}
.oauth-btn .oauth-icon {
  display: flex;
  align-items: center;
  justify-content: center;
}
.oauth-btn.oauth-google {
  background: #fffefb;
  border-color: #e8e7e3;
}
.oauth-btn.oauth-google:hover {
  background: #f3f2ef;
}
body.dark .oauth-btn {
  background: #2c2926;
  border-color: #4e4a3f;
  color: #fafaf8;
}
body.dark .oauth-btn:hover {
  background: #3a3731;
}
body.dark .oauth-btn.oauth-google {
  background: #fffefb;
  border-color: #e8e7e3;
  color: #2c2926;
}
body.dark .oauth-btn.oauth-google:hover {
  background: #f3f2ef;
}

.register-link {
  text-align: center;
  margin-top: 1.75rem;
  font-size: 0.8rem;
  color: var(--text-secondary);
}
.register-link a {
  color: var(--primary-color);
  text-decoration: none;
  font-weight: 600;
}
.register-link a:hover {
  text-decoration: underline;
}

/* Loading overlay */
.loading-overlay {
  position: absolute;
  inset: 0;
  background: rgba(255, 255, 255, 0.65);
  backdrop-filter: blur(6px);
  display: none;
  align-items: center;
  justify-content: center;
  flex-direction: column;
  gap: 1rem;
  z-index: 20;
}
body.dark .loading-overlay {
  background: rgba(17, 24, 39, 0.55);
}
.loading-overlay.active {
  display: flex;
}
.spinner {
  width: 2.25rem;
  height: 2.25rem;
  border: 3px solid rgba(0, 0, 0, 0.12);
  border-top-color: var(--primary-color);
  border-radius: 50%;
  animation: spin 1s linear infinite;
}
@keyframes spin {
  to {
    transform: rotate(360deg);
  }
}

/* Dark mode adjustments */
body.dark .card {
  box-shadow: 0 16px 40px -8px rgba(0, 0, 0, 0.6);
}
body.dark .form-control {
  border-color: #374151;
}
body.dark .form-control:focus {
  box-shadow: 0 0 0 4px rgba(184, 115, 68, 0.35);
}

/* A11y & preference */
@media (prefers-reduced-motion: reduce) {
  .btn-primary,
  .role-toggle .role-glider,
  .card {
    transition: none !important;
    animation: none !important;
  }
}

/* Responsive fixes to avoid clipping on small height / width */
@media (max-width: 560px) {
  html,
  body {
    height: auto;
    min-height: 100dvh;
  }
  body {
    align-items: flex-start;
    justify-content: center;
    padding: calc(env(safe-area-inset-top, 0) + 1rem) 1rem 1.5rem;
  }
  .login-container {
    margin: 0 auto;
  }
  .card {
    margin: 0 auto;
    max-height: calc(100dvh - 2rem - env(safe-area-inset-top, 0));
    overflow-y: auto;
  }
  .card-body {
    padding: 1.05rem 1.25rem 1.5rem;
  }
  .card-header {
    padding: 1.4rem 1.25rem 0.6rem;
  }
}
@media (max-height: 700px) {
  body {
    align-items: flex-start;
    padding-top: calc(env(safe-area-inset-top, 0) + 1rem);
  }
  .card {
    margin-top: 0.5rem;
    max-height: calc(100dvh - 1rem - env(safe-area-inset-top, 0));
    overflow-y: auto;
  }
}
@media (max-height: 600px) {
  .card-header {
    padding: 1.1rem 1.1rem 0.5rem;
  }
  .logo {
    width: 60px;
    height: 60px;
    margin-bottom: 0.6rem;
  }
  .card-title {
    font-size: 1.45rem;
  }
}
@media (prefers-reduced-motion: reduce) {
  .card {
    animation: none;
  }
}

/* floating label system fully removed (commented legacy rules) */
/*
.floating-input:focus + .floating-label,
.floating-input:not(:placeholder-shown) + .floating-label { }
body.dark .floating-input:focus + .floating-label,
body.dark .floating-input:not(:placeholder-shown) + .floating-label { }
.floating-input:focus + .floating-label .fl-icon,
.floating-input:not(:placeholder-shown) + .floating-label .fl-icon { }
.floating-input.is-invalid + .floating-label { }
body.dark .floating-input.is-invalid + .floating-label { }
.floating-field .input-group { }
.floating-field .input-group:before { }
.floating-field .input-group:focus-within:before { }
*/