/* ===== Sign-In Requirements Drawer — institutional panel (theme-isolated) ===== */

.signin-req-drawer-root {
  position: fixed;
  inset: 0;
  z-index: 1400;
  pointer-events: none;
  opacity: 0;
  visibility: hidden;
  transition: opacity 0.28s ease, visibility 0s linear 0.28s;
}

body.signin-active .signin-req-drawer-root {
  pointer-events: none;
  opacity: 1;
  visibility: visible;
  transition: opacity 0.28s ease, visibility 0s linear 0s;
}

/* Left FAB */
.signin-req-fab-wrap {
  position: fixed;
  z-index: 1401;
  pointer-events: none;
}

.signin-req-fab-wrap:not([data-custom-pos="true"]) {
  left: clamp(24px, 3vw, 32px);
  top: 50%;
  transform: translateY(-50%);
}

.signin-req-fab-wrap[data-custom-pos="true"] {
  transform: none;
}

.signin-req-fab-wrap.is-dragging {
  transition: none !important;
  will-change: left, top;
  z-index: 1402;
}

.signin-req-fab {
  position: relative;
  width: 56px;
  height: 56px;
  border: none;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--teal) 0%, #0ea5e9 100%);
  color: var(--white);
  cursor: grab;
  touch-action: none;
  user-select: none;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  isolation: isolate;
  box-shadow: 0 4px 18px rgba(6, 147, 150, 0.45);
  opacity: 0;
  visibility: hidden;
  pointer-events: none;
  transform: translateX(-16px) scale(0.92);
  transition:
    opacity 0.28s cubic-bezier(0.22, 1, 0.36, 1),
    visibility 0s linear 0.28s,
    transform 0.28s cubic-bezier(0.22, 1, 0.36, 1);
}

.signin-req-fab::before,
.signin-req-fab::after {
  content: "";
  position: absolute;
  inset: -10px;
  border-radius: 50%;
  z-index: -1;
  pointer-events: none;
}

.signin-req-fab::before {
  background: radial-gradient(circle, rgba(34, 211, 238, 0.55) 0%, rgba(6, 147, 150, 0.28) 42%, transparent 72%);
  opacity: 0.55;
  transform: scale(0.92);
}

.signin-req-fab::after {
  inset: -4px;
  border: 2px solid rgba(34, 211, 238, 0.35);
  opacity: 0;
}

body.signin-active .signin-req-fab {
  opacity: 1;
  visibility: visible;
  pointer-events: auto;
  transform: translateX(0) scale(1);
  transition:
    opacity 0.28s cubic-bezier(0.22, 1, 0.36, 1),
    visibility 0s linear 0.1s,
    transform 0.28s cubic-bezier(0.22, 1, 0.36, 1);
}

body.signin-active .signin-req-fab-wrap {
  pointer-events: auto;
}

body.signin-active .signin-req-fab:not([aria-expanded="true"]) {
  animation: signin-req-fab-beat 2.2s ease-in-out infinite;
}

body.signin-active .signin-req-fab:not([aria-expanded="true"])::before {
  animation: signin-req-fab-glow 2.2s ease-in-out infinite;
}

body.signin-active .signin-req-fab:not([aria-expanded="true"])::after {
  animation: signin-req-fab-ring 2.2s ease-in-out infinite;
}

@keyframes signin-req-fab-beat {
  0%, 100% { transform: scale(1); }
  12% { transform: scale(1.1); }
  22%, 48% { transform: scale(1); }
  34% { transform: scale(1.06); }
}

@keyframes signin-req-fab-glow {
  0%, 100% { opacity: 0.45; transform: scale(0.9); }
  12% { opacity: 1; transform: scale(1.28); }
  22% { opacity: 0.5; transform: scale(0.95); }
  34% { opacity: 0.85; transform: scale(1.14); }
  48% { opacity: 0.45; transform: scale(0.9); }
}

@keyframes signin-req-fab-ring {
  0%, 100% { opacity: 0; transform: scale(1); }
  12% { opacity: 0.75; transform: scale(1.18); }
  28% { opacity: 0; transform: scale(1.35); }
  34% { opacity: 0.5; transform: scale(1.1); }
  48% { opacity: 0; transform: scale(1.28); }
}

.signin-req-fab:hover:not(.is-dragging) {
  transform: scale(1.08);
  box-shadow: 0 8px 24px rgba(6, 147, 150, 0.55);
}

.signin-req-fab:active:not(.is-dragging) {
  transform: scale(0.96);
}

.signin-req-fab.is-dragging {
  cursor: grabbing;
  animation: none !important;
  transition: none !important;
  transform: scale(1) !important;
}

.signin-req-fab.is-dragging::before,
.signin-req-fab.is-dragging::after {
  animation: none !important;
}

body.signin-req-fab-dragging {
  touch-action: none;
  overscroll-behavior: none;
}

.signin-req-fab[aria-expanded="true"] {
  animation: none;
}

.signin-req-fab[aria-expanded="true"]::before,
.signin-req-fab[aria-expanded="true"]::after {
  animation: none;
  opacity: 0.35;
}

.signin-req-fab:focus-visible {
  outline: 2px solid var(--white);
  outline-offset: 3px;
}

.signin-req-fab__icon--close {
  display: none;
}

.signin-req-fab[aria-expanded="true"] .signin-req-fab__icon--info {
  display: none;
}

.signin-req-fab[aria-expanded="true"] .signin-req-fab__icon--close {
  display: block;
}

/* Drawer shell */
.signin-req-drawer {
  position: fixed;
  inset: 0;
  z-index: 1410;
  pointer-events: none;
}

.signin-req-drawer.is-open {
  pointer-events: auto;
}

.signin-req-drawer__overlay {
  position: absolute;
  inset: 0;
  z-index: 1;
  background: rgba(1, 20, 40, 0.52);
  backdrop-filter: blur(4px);
  -webkit-backdrop-filter: blur(4px);
  opacity: 0;
  transition: opacity 0.28s cubic-bezier(0.22, 1, 0.36, 1);
}

.signin-req-drawer.is-open .signin-req-drawer__overlay {
  opacity: 1;
}

/* Panel — always light institutional surface (immune to landing theme) */
.signin-req-drawer__panel {
  --srd-navy: #012a4a;
  --srd-navy-mid: #0d3a5c;
  --srd-title: #0f172a;
  --srd-body: #475569;
  --srd-muted: #64748b;
  --srd-teal: #069396;
  --srd-teal-dark: #0f766e;
  --srd-surface: #ffffff;
  --srd-bg: #f1f5f9;
  --srd-border: #e2e8f0;
  --srd-accent: #ccfbf1;

  position: absolute;
  top: 0;
  left: 0;
  z-index: 2;
  height: 100%;
  width: min(420px, 100%);
  max-width: 100%;
  display: flex;
  flex-direction: column;
  background: var(--srd-bg);
  border-right: 1px solid var(--srd-border);
  box-shadow: 8px 0 40px rgba(1, 42, 74, 0.18);
  transform: translateX(-105%);
  transition: transform 0.28s cubic-bezier(0.22, 1, 0.36, 1);
  outline: none;
  color: var(--srd-body);
}

.signin-req-drawer.is-open .signin-req-drawer__panel {
  transform: translateX(0);
}

/* Header — navy band */
.signin-req-drawer__header {
  position: sticky;
  top: 0;
  z-index: 2;
  display: flex;
  align-items: flex-start;
  gap: 12px;
  padding: 20px 18px 18px;
  background: linear-gradient(135deg, var(--srd-navy) 0%, var(--srd-navy-mid) 100%);
  border-bottom: 3px solid var(--srd-teal);
  box-shadow: 0 4px 16px rgba(1, 42, 74, 0.15);
}

.signin-req-drawer__header-main {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  flex: 1;
  min-width: 0;
}

.signin-req-drawer__header-icon {
  width: 44px;
  height: 44px;
  border-radius: 12px;
  background: rgba(255, 255, 255, 0.12);
  border: 1px solid rgba(94, 234, 212, 0.35);
  color: #5eead4;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

.signin-req-drawer__header-icon svg {
  width: 22px;
  height: 22px;
  display: block;
  stroke: currentColor;
}

.signin-req-drawer__title {
  margin: 0;
  font-size: 1.125rem;
  font-weight: 800;
  color: #ffffff !important;
  letter-spacing: -0.02em;
  line-height: 1.3;
}

.signin-req-drawer__subtitle {
  margin: 5px 0 0;
  font-size: 0.8125rem;
  line-height: 1.5;
  color: rgba(255, 255, 255, 0.78) !important;
}

.signin-req-drawer__close {
  flex-shrink: 0;
  width: 36px;
  height: 36px;
  border: 1px solid rgba(255, 255, 255, 0.28);
  border-radius: 10px;
  background: rgba(255, 255, 255, 0.1);
  color: #ffffff !important;
  font-size: 1.35rem;
  line-height: 1;
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  transition: background 0.2s, border-color 0.2s, transform 0.2s;
}

.signin-req-drawer__close:hover {
  background: rgba(255, 255, 255, 0.2);
  border-color: rgba(94, 234, 212, 0.55);
  transform: scale(1.05);
}

.signin-req-drawer__close:focus-visible {
  outline: 2px solid #5eead4;
  outline-offset: 2px;
}

/* Body */
.signin-req-drawer__body {
  flex: 1 1 auto;
  min-height: 0;
  overflow-y: auto;
  overscroll-behavior: contain;
  padding: 18px 16px 28px;
  -webkit-overflow-scrolling: touch;
  scrollbar-width: thin;
  scrollbar-color: rgba(6, 147, 150, 0.4) transparent;
}

.signin-req-drawer__body::-webkit-scrollbar {
  width: 7px;
}

.signin-req-drawer__body::-webkit-scrollbar-thumb {
  background: rgba(6, 147, 150, 0.35);
  border-radius: 99px;
}

.signin-req-drawer__section + .signin-req-drawer__section {
  margin-top: 20px;
}

.signin-req-drawer__section-title {
  display: flex;
  align-items: center;
  gap: 10px;
  margin: 0 0 12px;
  padding-bottom: 8px;
  border-bottom: 1px solid var(--srd-border);
  font-size: 0.875rem;
  font-weight: 800;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  color: #0f766e !important;
}

.signin-req-drawer__panel h3.signin-req-drawer__section-title,
html[data-theme-resolved='dark'] .signin-req-drawer__panel h3.signin-req-drawer__section-title,
html[data-theme-resolved='light'] .signin-req-drawer__panel h3.signin-req-drawer__section-title {
  color: #0f766e !important;
}

.signin-req-drawer__section-icon {
  width: 32px;
  height: 32px;
  border-radius: 8px;
  background: var(--srd-accent);
  border: 1px solid rgba(6, 147, 150, 0.2);
  color: var(--srd-teal) !important;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

.signin-req-drawer__section-icon svg {
  width: 17px;
  height: 17px;
  display: block;
  stroke: currentColor;
}

/* Cards */
.signin-req-drawer__card {
  padding: 14px 14px 14px 16px;
  margin-bottom: 10px;
  border-radius: 10px;
  background: var(--srd-surface);
  border: 1px solid var(--srd-border);
  border-left: 4px solid var(--srd-teal);
  box-shadow: 0 1px 4px rgba(15, 23, 42, 0.04);
  transition: box-shadow 0.2s ease, border-color 0.2s ease;
}

.signin-req-drawer__card:hover {
  box-shadow: 0 4px 14px rgba(15, 23, 42, 0.07);
  border-color: #cbd5e1;
}

.signin-req-drawer__card:last-child {
  margin-bottom: 0;
}

.signin-req-drawer__card-title {
  margin: 0 0 8px;
  font-size: 0.9rem;
  font-weight: 700;
  color: #0f172a !important;
}

.signin-req-drawer__panel h4.signin-req-drawer__card-title,
html[data-theme-resolved='dark'] .signin-req-drawer__panel h4.signin-req-drawer__card-title,
html[data-theme-resolved='light'] .signin-req-drawer__panel h4.signin-req-drawer__card-title {
  color: #0f172a !important;
}

.signin-req-drawer__card-intro {
  margin: 0 0 8px;
  font-size: 0.84rem;
  font-weight: 600;
  color: var(--srd-body) !important;
}

.signin-req-drawer__list {
  margin: 0;
  padding: 0 0 0 18px;
  color: var(--srd-body) !important;
  font-size: 0.8125rem;
  line-height: 1.65;
}

.signin-req-drawer__list li {
  color: var(--srd-body) !important;
}

.signin-req-drawer__list li + li {
  margin-top: 5px;
}

.signin-req-drawer__list--compact {
  list-style: disc;
}

/* Password demo */
.signin-req-drawer__pwd-demo {
  margin-top: 14px;
  padding-top: 14px;
  border-top: 1px dashed #cbd5e1;
}

.signin-req-drawer__pwd-label {
  display: block;
  margin-bottom: 8px;
  font-size: 0.8125rem;
  font-weight: 600;
  color: var(--srd-body) !important;
}

.signin-req-drawer__pwd-input {
  width: 100%;
  padding: 10px 12px;
  border: 1.5px solid var(--srd-border);
  border-radius: 8px;
  font-size: 0.875rem;
  font-family: inherit;
  background: #fff !important;
  color: var(--srd-title) !important;
  transition: border-color 0.2s, box-shadow 0.2s;
}

.signin-req-drawer__pwd-input::placeholder {
  color: var(--srd-muted) !important;
}

.signin-req-drawer__pwd-input:focus {
  outline: none;
  border-color: var(--srd-teal);
  box-shadow: 0 0 0 3px rgba(6, 147, 150, 0.15);
}

html[data-theme-resolved='dark'] .signin-req-drawer__pwd-input {
  background: #fff !important;
  border-color: var(--srd-border) !important;
  color: var(--srd-title) !important;
}

.signin-req-drawer__pwd-checklist {
  list-style: none;
  margin: 10px 0 0;
  padding: 0;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 5px 12px;
}

.signin-req-drawer__pwd-checklist li {
  font-size: 11.5px;
  color: var(--srd-muted) !important;
  padding-left: 16px;
  position: relative;
  transition: color 0.2s;
}

.signin-req-drawer__pwd-checklist li::before {
  content: '✗';
  position: absolute;
  left: 0;
  color: #ef4444;
  font-size: 10px;
  font-weight: 700;
}

.signin-req-drawer__pwd-checklist li.pass {
  color: #15803d !important;
}

.signin-req-drawer__pwd-checklist li.pass::before {
  content: '✓';
  color: #15803d;
}

/* Override global dark-theme heading/label rules inside drawer */
.signin-req-drawer__panel h2.signin-req-drawer__title,
html[data-theme-resolved='dark'] .signin-req-drawer__panel h2.signin-req-drawer__title,
html[data-theme-resolved='light'] .signin-req-drawer__panel h2.signin-req-drawer__title {
  color: #ffffff !important;
}

.signin-req-drawer__panel .signin-req-drawer__subtitle,
html[data-theme-resolved='dark'] .signin-req-drawer__panel .signin-req-drawer__subtitle,
html[data-theme-resolved='light'] .signin-req-drawer__panel .signin-req-drawer__subtitle {
  color: rgba(255, 255, 255, 0.82) !important;
}

.signin-req-drawer__panel .signin-req-drawer__card-intro,
html[data-theme-resolved='dark'] .signin-req-drawer__panel .signin-req-drawer__card-intro,
html[data-theme-resolved='light'] .signin-req-drawer__panel .signin-req-drawer__card-intro {
  color: #475569 !important;
}

.signin-req-drawer__panel .signin-req-drawer__list,
.signin-req-drawer__panel .signin-req-drawer__list li,
html[data-theme-resolved='dark'] .signin-req-drawer__panel .signin-req-drawer__list,
html[data-theme-resolved='dark'] .signin-req-drawer__panel .signin-req-drawer__list li,
html[data-theme-resolved='light'] .signin-req-drawer__panel .signin-req-drawer__list,
html[data-theme-resolved='light'] .signin-req-drawer__panel .signin-req-drawer__list li {
  color: #475569 !important;
}

html[data-theme-resolved='dark'] .signin-req-drawer__panel label.signin-req-drawer__pwd-label,
html[data-theme-resolved='light'] .signin-req-drawer__panel label.signin-req-drawer__pwd-label {
  color: #475569 !important;
}

@media (max-width: 768px) {
  .signin-req-drawer__panel {
    width: 86%;
  }

  .signin-req-fab-wrap:not([data-custom-pos="true"]) {
    left: 16px;
  }

  /* Keep requirements FAB outside the sign-in card — dock bottom-right while sign-in is open */
  body.signin-active .signin-req-fab-wrap:not([data-custom-pos="true"]) {
    top: auto;
    left: auto;
    right: max(16px, env(safe-area-inset-right, 16px));
    bottom: max(20px, env(safe-area-inset-bottom, 20px));
    transform: none;
  }

  .signin-req-fab {
    width: 50px;
    height: 50px;
  }
}

@media (max-width: 480px) {
  .signin-req-drawer__panel {
    width: 100%;
  }

  .signin-req-fab-wrap:not([data-custom-pos="true"]) {
    left: 16px;
    top: 50%;
    transform: translateY(-50%);
  }

  body.signin-active .signin-req-fab-wrap:not([data-custom-pos="true"]) {
    top: auto;
    left: auto;
    right: max(12px, env(safe-area-inset-right, 12px));
    bottom: max(16px, env(safe-area-inset-bottom, 16px));
    transform: none;
  }

  .signin-req-fab {
    width: 48px;
    height: 48px;
  }

  .signin-req-drawer__header {
    padding: 16px 14px 14px;
  }

  .signin-req-drawer__body {
    padding: 14px 12px 24px;
  }

  .signin-req-drawer__pwd-checklist {
    grid-template-columns: 1fr;
  }
}

@media (prefers-reduced-motion: reduce) {
  .signin-req-fab,
  .signin-req-fab::before,
  .signin-req-fab::after,
  .signin-req-drawer__overlay,
  .signin-req-drawer__panel,
  .signin-req-drawer-root {
    animation: none !important;
    transition: none !important;
  }
}