/* Auth pages — full viewport, themed with CESI design system */
html:has(.auth-container),
html:has(.auth-container) body {
  height: 100%;
  overflow: hidden;
  overscroll-behavior: none;
}

body:has(.auth-container) {
  min-height: unset;
  line-height: 1.5;
  background: var(--cesi-bg-gradient) !important;
}

.auth-container {
  height: 100vh;
  height: 100dvh;
  height: 100svh;
  max-height: 100dvh;
  min-height: unset;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: clamp(8px, 2vh, 20px);
  overflow: hidden;
}

.auth-card--register {
  max-width: min(920px, 96vw) !important;
}

.auth-card {
  max-width: min(440px, 96vw);
  max-height: calc(100dvh - 16px);
  display: flex;
  flex-direction: column;
  overflow: hidden;
  border-radius: var(--cesi-radius) !important;
  border: 1px solid var(--cesi-border-strong) !important;
  box-shadow: var(--cesi-shadow-lg) !important;
  background: var(--cesi-surface) !important;
}

.auth-header {
  padding: clamp(16px, 3vh, 28px) clamp(18px, 4vw, 28px) clamp(12px, 2vh, 18px);
  flex-shrink: 0;
  background: linear-gradient(135deg, var(--cesi-accent) 0%, var(--cesi-primary) 55%, var(--cesi-primary-dark) 100%) !important;
  color: #fff !important;
}

.auth-logo {
  font-size: clamp(1.2rem, 3.5vw, 1.75rem);
  margin-bottom: 4px;
  line-height: 1.2;
  font-weight: 800;
  text-shadow: 0 2px 8px rgba(0, 0, 0, 0.15);
}

.auth-subtitle {
  font-size: clamp(0.8rem, 2vw, 0.95rem);
  line-height: 1.3;
  opacity: 0.92;
}

.auth-body {
  padding: clamp(14px, 2.5vh, 22px) clamp(16px, 3.5vw, 26px) clamp(12px, 2vh, 18px);
  flex: 1 1 auto;
  min-height: 0;
  overflow-y: auto;
  display: flex;
  flex-direction: column;
  justify-content: flex-start;
}

/* Success / info messages sit between header and form (not vertically centered away) */
.auth-flash {
  flex-shrink: 0;
  margin: 0;
  padding: 14px 18px;
  border-radius: 0;
  border-left: none;
  border-right: none;
  border-top: none;
  font-size: 0.9rem;
  line-height: 1.55;
  position: relative;
  z-index: 2;
}

.auth-flash.alert-success {
  background: #d4edda;
  color: #155724;
  border-bottom: 3px solid #28a745;
}

.auth-flash.alert-warning {
  background: #fff3cd;
  color: #856404;
  border-bottom: 3px solid #ffc107;
}

.auth-flash.alert-info {
  background: #d1ecf1;
  color: #0c5460;
  border-bottom: 3px solid #17a2b8;
}

.auth-body .form-group {
  margin-bottom: clamp(10px, 1.5vh, 14px);
}

.auth-body .form-label {
  margin-bottom: 4px;
  font-size: clamp(0.78rem, 1.8vw, 0.88rem);
  font-weight: 600;
  color: var(--cesi-text);
}

.auth-body .form-control {
  padding: clamp(9px, 1.2vh, 12px) clamp(11px, 2vw, 14px);
  font-size: clamp(0.88rem, 2vw, 0.95rem);
  border-radius: var(--cesi-radius-sm);
  border: 1.5px solid var(--cesi-border-strong);
}

.auth-body .form-control:focus {
  border-color: var(--cesi-primary);
  box-shadow: 0 0 0 3px var(--cesi-primary-soft);
}

.auth-body .input-group-text {
  padding: clamp(9px, 1.2vh, 12px) clamp(10px, 2vw, 12px);
  border-radius: var(--cesi-radius-sm) 0 0 var(--cesi-radius-sm);
  background: #f8fafc;
  border: 1.5px solid var(--cesi-border-strong);
}

.auth-body .btn,
.auth-body .btn-primary,
.auth-body .btn-outline-primary {
  width: 100%;
  margin-top: 0.25rem;
}

.auth-body .divider {
  position: relative;
  margin: clamp(10px, 1.5vh, 14px) 0;
  flex-shrink: 0;
  text-align: center;
}

.auth-body .divider::before {
  content: '';
  position: absolute;
  top: 50%;
  left: 0;
  right: 0;
  height: 1px;
  background: var(--cesi-border-strong);
}

.auth-body .divider span {
  position: relative;
  z-index: 1;
  display: inline-block;
  background: var(--cesi-surface);
  color: var(--cesi-text-secondary);
  font-weight: 600;
  font-size: clamp(0.78rem, 1.8vw, 0.88rem);
  padding: 0 12px;
}

.auth-body .alert {
  padding: clamp(8px, 1.2vh, 11px) clamp(10px, 2vw, 12px);
  margin-bottom: clamp(8px, 1.2vh, 12px);
  font-size: clamp(0.75rem, 1.7vw, 0.85rem);
}

@media (max-width: 768px) {
  .auth-container {
    padding: 8px;
  }

  .auth-card {
    max-height: calc(100dvh - 12px);
  }
}

@media (max-height: 560px) {
  .auth-body .auth-links--footer {
    display: none;
  }
}

/* —— Auth page shell —— */
.auth-page {
  position: relative;
  min-height: 100%;
}

.auth-page::before,
.auth-page::after {
  content: '';
  position: fixed;
  border-radius: 50%;
  pointer-events: none;
  z-index: 0;
  opacity: 0.45;
}

.auth-page::before {
  width: min(420px, 70vw);
  height: min(420px, 70vw);
  top: -120px;
  right: -80px;
  background: radial-gradient(circle, rgba(108, 169, 213, 0.35) 0%, transparent 70%);
}

.auth-page::after {
  width: min(360px, 60vw);
  height: min(360px, 60vw);
  bottom: -100px;
  left: -60px;
  background: radial-gradient(circle, rgba(74, 123, 168, 0.28) 0%, transparent 70%);
}

.auth-container {
  position: relative;
  z-index: 1;
}

.auth-back-home {
  position: fixed;
  top: clamp(10px, 2vh, 18px);
  left: clamp(10px, 2vw, 18px);
  z-index: 10;
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  padding: 0.45rem 0.85rem;
  font-size: 0.82rem;
  font-weight: 600;
  color: var(--cesi-primary-dark, #2c5f8a);
  background: rgba(255, 255, 255, 0.92);
  border: 1px solid var(--cesi-border-strong, #d4e4f0);
  border-radius: 999px;
  text-decoration: none;
  box-shadow: var(--cesi-shadow-sm, 0 2px 8px rgba(15, 23, 42, 0.08));
  transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.auth-back-home:hover {
  color: var(--cesi-primary, #6ca9d5);
  transform: translateY(-1px);
  box-shadow: var(--cesi-shadow, 0 4px 14px rgba(15, 23, 42, 0.12));
}

.auth-header {
  text-align: center;
}

.auth-brand-icon {
  width: 56px;
  height: 56px;
  margin: 0 auto 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 16px;
  background: rgba(255, 255, 255, 0.2);
  border: 1px solid rgba(255, 255, 255, 0.35);
  font-size: 1.5rem;
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.12);
}

.auth-badge {
  display: inline-block;
  margin-top: 8px;
  padding: 0.2rem 0.65rem;
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.22);
  border: 1px solid rgba(255, 255, 255, 0.35);
}

.auth-intro {
  font-size: 0.9rem;
  color: var(--cesi-text-secondary, #64748b);
  line-height: 1.55;
  margin-bottom: 1.25rem;
}

.auth-row {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 0.5rem 1rem;
  margin-bottom: 0.25rem;
}

.auth-row .form-check-label {
  font-size: 0.88rem;
  color: var(--cesi-text-secondary, #64748b);
}

.auth-link {
  font-size: 0.88rem;
  font-weight: 600;
  color: var(--cesi-primary, #6ca9d5);
  text-decoration: none;
}

.auth-link:hover {
  color: var(--cesi-primary-dark, #4a7ba8);
  text-decoration: underline;
}

.auth-input-toggle {
  border-radius: 0 var(--cesi-radius-sm) var(--cesi-radius-sm) 0 !important;
  border: 1.5px solid var(--cesi-border-strong);
  border-left: none;
  background: #f8fafc;
  color: var(--cesi-text-secondary, #64748b);
  padding: 0 0.85rem;
}

.auth-input-toggle:hover {
  background: #eef4f9;
  color: var(--cesi-primary-dark, #4a7ba8);
}

.auth-body .input-group:has(.auth-input-toggle) .form-control {
  border-right: none;
  border-radius: 0;
}

.auth-actions {
  display: flex;
  flex-direction: column;
  gap: 0.65rem;
  margin-top: 0.35rem;
}

.auth-actions .btn-primary {
  padding: 0.75rem 1rem;
  font-weight: 700;
  border: none;
  border-radius: var(--cesi-radius-sm);
  background: linear-gradient(135deg, var(--cesi-accent, #6ca9d5), var(--cesi-primary, #4a7ba8));
  box-shadow: 0 4px 14px rgba(74, 123, 168, 0.35);
}

.auth-actions .btn-primary:hover:not(:disabled) {
  transform: translateY(-1px);
  box-shadow: 0 6px 18px rgba(74, 123, 168, 0.4);
}

.auth-actions .btn-outline-primary,
.auth-actions .btn-outline-secondary {
  padding: 0.65rem 1rem;
  font-weight: 600;
  border-radius: var(--cesi-radius-sm);
  border-width: 1.5px;
}

.auth-actions .btn-outline-primary {
  border-color: var(--cesi-primary, #6ca9d5);
  color: var(--cesi-primary-dark, #4a7ba8);
}

.auth-actions .btn-outline-primary:hover {
  background: var(--cesi-primary-soft, #e8f4fc);
  color: var(--cesi-primary-dark, #4a7ba8);
}

.auth-actions .btn-outline-secondary {
  border-color: var(--cesi-border-strong, #c5d9e8);
  color: var(--cesi-text-secondary, #64748b);
  background: #fff;
}

.auth-actions .btn-outline-secondary:hover {
  background: #f8fafc;
  border-color: var(--cesi-primary, #6ca9d5);
  color: var(--cesi-primary-dark, #4a7ba8);
}

.auth-quick-links {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 0.35rem 1rem;
  margin-top: 1rem;
  padding-top: 0.85rem;
  border-top: 1px solid var(--cesi-border-strong, #e2e8f0);
  font-size: 0.85rem;
}

.auth-quick-links a {
  color: var(--cesi-primary, #6ca9d5);
  font-weight: 600;
  text-decoration: none;
}

.auth-quick-links a:hover {
  text-decoration: underline;
}

.auth-quick-links .sep {
  color: var(--cesi-border-strong, #cbd5e1);
  user-select: none;
}

.auth-links--footer {
  margin-top: 1rem;
  padding-top: 0.75rem;
  text-align: center;
  border-top: 1px dashed var(--cesi-border-strong, #e2e8f0);
}

.auth-spinner {
  display: inline-block;
  width: 1rem;
  height: 1rem;
  margin-right: 0.35rem;
  vertical-align: -0.15em;
  border: 2px solid rgba(255, 255, 255, 0.35);
  border-radius: 50%;
  border-top-color: #fff;
  animation: auth-spin 0.75s linear infinite;
}

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

.auth-body .form-check-input:checked {
  background-color: var(--cesi-primary, #6ca9d5);
  border-color: var(--cesi-primary, #6ca9d5);
}

/* —— Modern split login (auth-login-page) —— */
html:has(.auth-login-page),
html:has(.auth-login-page) body {
  height: 100%;
  overflow: auto;
  overscroll-behavior: none;
}

body.auth-login-page {
  background: linear-gradient(
    135deg,
    var(--cesi-accent, #6ca9d5) 0%,
    var(--cesi-primary, #4a7ba8) 50%,
    var(--cesi-primary-dark, #3d6d94) 100%
  ) !important;
}

.auth-login-page::before,
.auth-login-page::after {
  display: none;
}

.auth-login-page .auth-back-home--login {
  color: #e2e8f0;
  background: rgba(15, 23, 42, 0.55);
  border-color: rgba(255, 255, 255, 0.12);
  backdrop-filter: blur(8px);
}

.auth-login-page .auth-back-home--login:hover {
  color: #fff;
  background: rgba(15, 23, 42, 0.75);
}

.login-layout {
  display: grid;
  grid-template-columns: 1fr;
  min-height: 100dvh;
  width: 100%;
}

/* Brand panel — CESI gradient (matches register auth-header) */
.login-brand {
  position: relative;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: clamp(3rem, 8vh, 5rem) clamp(1.5rem, 5vw, 3rem);
  overflow: hidden;
  background: linear-gradient(
    135deg,
    var(--cesi-accent, #6ca9d5) 0%,
    var(--cesi-primary, #4a7ba8) 50%,
    var(--cesi-primary-dark, #3d6d94) 100%
  );
  color: #fff;
}

.login-brand__mesh {
  position: absolute;
  inset: 0;
  background:
    radial-gradient(ellipse 90% 70% at 15% 20%, rgba(255, 255, 255, 0.18), transparent 55%),
    radial-gradient(ellipse 70% 60% at 85% 75%, rgba(255, 255, 255, 0.1), transparent 50%),
    linear-gradient(180deg, rgba(255, 255, 255, 0.06) 0%, transparent 40%, rgba(0, 0, 0, 0.06) 100%);
  pointer-events: none;
}

.login-brand__inner {
  position: relative;
  z-index: 1;
  max-width: 380px;
  width: 100%;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: clamp(1.25rem, 4vh, 2rem);
}

.login-brand__identity {
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  gap: 0.75rem;
}

.login-brand__logo-img {
  display: block;
  width: min(150px, 38vw);
  height: auto;
  max-height: min(150px, 38vw);
  margin: 0 auto;
  object-fit: contain;
  filter: drop-shadow(0 8px 20px rgba(0, 0, 0, 0.3));
}

.login-brand__titles {
  display: flex;
  flex-direction: column;
  gap: 0.35rem;
  max-width: 320px;
}

.login-brand__org {
  margin: 0;
  font-size: clamp(0.88rem, 2vw, 1rem);
  font-weight: 700;
  line-height: 1.4;
  color: rgba(248, 250, 252, 0.98);
}

.login-brand__conference {
  margin: 0;
  font-size: clamp(0.8rem, 1.8vw, 0.92rem);
  font-weight: 500;
  line-height: 1.35;
  color: rgba(248, 250, 252, 0.82);
}

.login-brand__logo-mark {
  width: 88px;
  height: 88px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.65rem;
  font-weight: 800;
  letter-spacing: 0.06em;
  border-radius: 20px;
  background: rgba(255, 255, 255, 0.14);
  border: 2px solid rgba(255, 255, 255, 0.3);
  box-shadow: 0 12px 32px rgba(0, 0, 0, 0.15);
}

.login-brand__name {
  margin: 0;
  font-size: clamp(1rem, 2.2vw, 1.2rem);
  font-weight: 600;
  line-height: 1.45;
  color: rgba(248, 250, 252, 0.95);
  max-width: 280px;
}

.login-brand__pill {
  display: inline-block;
  margin-top: 0.25rem;
  padding: 0.35rem 0.85rem;
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.15);
  border: 1px solid rgba(255, 255, 255, 0.25);
}

.login-brand__actions {
  width: 100%;
  display: flex;
  flex-direction: column;
  gap: 0.65rem;
}

.login-brand__actions--row {
  flex-direction: row;
  flex-wrap: wrap;
  align-items: stretch;
}

.login-brand__btn {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0.4rem;
  flex: 1 1 0;
  min-width: 0;
  width: auto;
  padding: 0.7rem 0.65rem;
  font-size: clamp(0.72rem, 1.6vw, 0.85rem);
  font-weight: 700;
  color: #fff;
  text-decoration: none;
  background: linear-gradient(
    135deg,
    #8ec5ea 0%,
    var(--cesi-accent, #6ca9d5) 45%,
    var(--cesi-primary, #4a7ba8) 100%
  );
  border: 1px solid rgba(255, 255, 255, 0.45);
  border-radius: 12px;
  box-shadow: 0 4px 16px rgba(45, 90, 120, 0.3);
  transition: transform 0.15s ease, box-shadow 0.15s ease, filter 0.15s ease;
  white-space: nowrap;
}

.login-brand__btn i {
  flex-shrink: 0;
  font-size: 0.95em;
}

.login-brand__btn:hover {
  color: #fff;
  transform: translateY(-1px);
  box-shadow: 0 8px 22px rgba(45, 90, 120, 0.38);
  filter: brightness(1.06);
}

.login-brand__btn--outline {
  color: #fff;
  background: linear-gradient(
    135deg,
    var(--cesi-primary, #4a7ba8) 0%,
    var(--cesi-primary-dark, #3d6d94) 100%
  );
  border: 1.5px solid rgba(255, 255, 255, 0.4);
  box-shadow: 0 4px 14px rgba(0, 0, 0, 0.15);
}

.login-brand__btn--outline:hover {
  color: #fff;
  background: linear-gradient(
    135deg,
    #5a9fc9 0%,
    var(--cesi-primary-dark, #3d6d94) 100%
  );
  border-color: rgba(255, 255, 255, 0.6);
  filter: brightness(1.05);
}

/* Form panel */
.login-main {
  display: flex;
  align-items: center;
  justify-content: center;
  padding: clamp(1.25rem, 4vw, 2.5rem);
  background: #f8fafc;
}

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

.login-main__eyebrow {
  margin: 0 0 0.35rem;
  font-size: 0.78rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--cesi-primary, #6ca9d5);
}

.login-main__title {
  margin: 0 0 0.35rem;
  font-size: clamp(1.5rem, 4vw, 1.85rem);
  font-weight: 800;
  letter-spacing: -0.02em;
  color: #0f172a;
}

.login-main__lead {
  margin: 0 0 1.5rem;
  font-size: 0.95rem;
  color: #64748b;
  line-height: 1.5;
}

.login-alert {
  display: flex;
  gap: 0.75rem;
  align-items: flex-start;
  padding: 0.85rem 1rem;
  margin-bottom: 1.25rem;
  border-radius: 12px;
  font-size: 0.88rem;
  line-height: 1.45;
}

.login-alert--success {
  background: #ecfdf5;
  color: #065f46;
  border: 1px solid #a7f3d0;
}

.login-alert--success i {
  color: #10b981;
  margin-top: 0.15rem;
}

.login-alert p {
  margin: 0.25rem 0 0;
  font-weight: 400;
  opacity: 0.9;
}

.login-form {
  display: flex;
  flex-direction: column;
  gap: 1.1rem;
}

.login-field__label {
  display: block;
  margin-bottom: 0.4rem;
  font-size: 0.82rem;
  font-weight: 600;
  color: #334155;
}

.login-field__label-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 0.4rem;
}

.login-field__label-row .login-field__label {
  margin-bottom: 0;
}

.login-field__link {
  font-size: 0.82rem;
  font-weight: 600;
  color: var(--cesi-primary, #6ca9d5);
  text-decoration: none;
}

.login-field__link:hover {
  text-decoration: underline;
}

.login-field__input {
  width: 100%;
  padding: 0.8rem 1rem;
  font-size: 0.95rem;
  color: #0f172a;
  background: #fff;
  border: 1.5px solid #e2e8f0;
  border-radius: 12px;
  transition: border-color 0.15s ease, box-shadow 0.15s ease;
}

.login-field__input::placeholder {
  color: #94a3b8;
}

.login-field__input:focus {
  outline: none;
  border-color: var(--cesi-primary, #6ca9d5);
  box-shadow: 0 0 0 4px rgba(108, 169, 213, 0.2);
}

.login-field__input.is-invalid {
  border-color: #f87171;
}

.login-field__password-wrap {
  position: relative;
}

.login-field__password-wrap .login-field__input {
  padding-right: 2.75rem;
}

.login-field__toggle {
  position: absolute;
  top: 50%;
  right: 0.65rem;
  transform: translateY(-50%);
  padding: 0.35rem;
  border: none;
  background: transparent;
  color: #94a3b8;
  line-height: 1;
  border-radius: 8px;
  cursor: pointer;
}

.login-field__toggle:hover {
  color: var(--cesi-primary-dark, #4a7ba8);
  background: #f1f5f9;
}

.login-remember {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  margin: -0.25rem 0 0;
  font-size: 0.88rem;
  color: #64748b;
  cursor: pointer;
}

.login-remember .form-check-input {
  margin: 0;
}

.login-submit {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 100%;
  margin-top: 0.25rem;
  padding: 0.9rem 1.25rem;
  font-size: 1rem;
  font-weight: 700;
  color: #fff;
  border: none;
  border-radius: 12px;
  background: linear-gradient(
    135deg,
    var(--cesi-accent, #6ca9d5) 0%,
    var(--cesi-primary, #4a7ba8) 55%,
    var(--cesi-primary-dark, #3d6d94) 100%
  );
  box-shadow: 0 8px 24px rgba(74, 123, 168, 0.4);
  cursor: pointer;
  transition: transform 0.15s ease, box-shadow 0.15s ease, filter 0.15s ease;
}

.login-submit:hover:not(:disabled) {
  transform: translateY(-1px);
  box-shadow: 0 12px 28px rgba(74, 123, 168, 0.45);
  filter: brightness(1.05);
}

.login-submit:disabled {
  opacity: 0.85;
  cursor: wait;
}

.login-footer {
  margin-top: 1.75rem;
  text-align: center;
  font-size: 0.82rem;
  color: #94a3b8;
}

.login-footer a {
  color: var(--cesi-primary, #6ca9d5);
  font-weight: 600;
  text-decoration: none;
}

.login-footer a:hover {
  text-decoration: underline;
}

.auth-login-page .auth-spinner {
  border-color: rgba(255, 255, 255, 0.35);
  border-top-color: #fff;
}

@media (min-width: 900px) {
  .login-layout {
    grid-template-columns: minmax(300px, 1.05fr) minmax(360px, 1fr);
  }

  .login-brand {
    min-height: 100dvh;
  }

  .login-main {
    min-height: 100dvh;
  }
}

@media (max-width: 899px) {
  .login-brand {
    padding: 2rem 1.25rem 1.75rem;
  }

  .login-brand__inner {
    max-width: 100%;
    gap: 1.25rem;
  }

  .login-brand__titles {
    max-width: 100%;
  }
}

@media (max-width: 380px) {
  .login-brand__actions--row {
    flex-direction: column;
  }

  .login-brand__btn {
    width: 100%;
    white-space: normal;
  }
}