/* Conversation, native-shell, and account-management presentation. */
:root {
  color-scheme: dark;
  --native-keyboard-height: 0px;
  --conversation-width: 820px;
}

button,
input,
select,
textarea {
  font: inherit;
}

button {
  -webkit-tap-highlight-color: transparent;
  touch-action: manipulation;
}

button:focus-visible,
input:focus-visible,
select:focus-visible,
textarea:focus-visible,
a:focus-visible {
  outline: 3px solid rgba(209, 191, 150, 0.45);
  outline-offset: 2px;
}

.settings-row,
.tier-btn {
  min-height: 44px;
}

.native-app body {
  padding-top: env(safe-area-inset-top);
  padding-bottom: env(safe-area-inset-bottom);
}

/* Conversation list */
.chat-title {
  overflow: hidden;
  color: var(--color-text-primary);
  font-size: var(--font-size-sm);
  font-weight: var(--font-weight-medium);
  text-overflow: ellipsis;
  white-space: nowrap;
}

.chat-preview {
  margin-top: 2px;
  color: var(--color-text-tertiary);
  font-size: var(--font-size-xs);
}

/* Account dialogs */
.account-modal {
  position: fixed;
  inset: 0;
  z-index: 100000;
  display: grid;
  place-items: center;
  padding: max(20px, env(safe-area-inset-top)) 20px max(20px, env(safe-area-inset-bottom));
}

.account-modal-backdrop {
  position: absolute;
  inset: 0;
  background: rgba(3, 6, 10, 0.76);
  -webkit-backdrop-filter: blur(12px);
  backdrop-filter: blur(12px);
}

.account-modal-card {
  position: relative;
  width: min(520px, 100%);
  max-height: 85dvh;
  overflow: auto;
  padding: 28px;
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: 20px;
  background: var(--color-bg-secondary);
  box-shadow: var(--shadow-xl);
  color: var(--color-text-primary);
}

.account-modal-card h2 {
  margin: 0 36px 12px 0;
}

.account-modal-card > p {
  color: var(--color-text-secondary);
  line-height: var(--line-height-relaxed);
}

.account-modal-close {
  position: absolute;
  top: 14px;
  right: 14px;
  width: 40px;
  height: 40px;
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.05);
  color: var(--color-text-primary);
  font-size: 24px;
  line-height: 1;
  cursor: pointer;
}

.account-modal-close:hover {
  background: rgba(255, 255, 255, 0.09);
}

.account-field {
  display: grid;
  gap: 8px;
  margin: 18px 0;
  color: var(--color-text-primary);
  font-weight: var(--font-weight-semibold);
}

.account-field input {
  min-height: 48px;
  padding: 0 14px;
  border: 1px solid rgba(255, 255, 255, 0.12);
  border-radius: 12px;
  background: var(--color-bg-primary);
  color: var(--color-text-primary);
}

.account-danger-button {
  width: 100%;
  min-height: 48px;
  border: 1px solid rgba(255, 107, 107, 0.35);
  border-radius: 13px;
  background: #b42318;
  color: #fff;
  font-weight: var(--font-weight-bold);
  cursor: pointer;
}

.account-danger-button:hover {
  background: #9f1f16;
}

.account-modal-error {
  min-height: 22px;
  margin-bottom: 10px;
  color: #ffb4ab;
}

.account-modal-warning {
  padding: 12px 14px;
  border: 1px solid rgba(255, 159, 10, 0.25);
  border-radius: 12px;
  background: rgba(255, 159, 10, 0.08);
  color: #ffd89b !important;
}

.account-modal-status {
  color: var(--color-text-secondary);
}

.device-list {
  display: grid;
  gap: 10px;
}

.device-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 14px;
  padding: 14px;
  border: 1px solid rgba(255, 255, 255, 0.08);
  border-radius: 14px;
  background: rgba(255, 255, 255, 0.035);
}

.device-row small {
  display: block;
  margin-top: 4px;
  color: var(--color-text-tertiary);
}

.device-row button {
  min-height: 36px;
  padding: 8px 12px;
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: 10px;
  background: rgba(255, 255, 255, 0.05);
  color: var(--color-text-primary);
  cursor: pointer;
}

.device-current {
  color: #6fd58a;
  font-weight: var(--font-weight-bold);
}

/* Conversation shell */
.header {
  isolation: isolate;
}

.connection-status {
  position: absolute;
  right: max(14px, env(safe-area-inset-right));
  max-width: min(42vw, 240px);
  padding: 6px 10px;
  border: 1px solid rgba(255, 159, 10, 0.28);
  border-radius: 999px;
  background: rgba(255, 159, 10, 0.14);
  color: #ffd89b;
  font-size: 0.72rem;
  font-weight: 650;
  line-height: 1.2;
  text-align: center;
  -webkit-backdrop-filter: blur(18px);
  backdrop-filter: blur(18px);
}

.connection-status[hidden] {
  display: none !important;
}

.chat-container {
  padding: clamp(20px, 4vw, 42px) max(16px, env(safe-area-inset-right)) 210px max(16px, env(safe-area-inset-left));
  overscroll-behavior-y: contain;
  scroll-padding-bottom: 210px;
}

.message {
  display: flex;
  width: min(100%, var(--conversation-width));
  max-width: var(--conversation-width);
  margin: 0 auto 18px;
  align-items: flex-end;
  animation: message-enter 220ms cubic-bezier(0.2, 0.8, 0.2, 1);
  contain: layout style;
}

.message.user-message {
  justify-content: flex-end;
}

.message.assistant-message {
  justify-content: flex-start;
}

.message-wrapper {
  display: flex;
  min-width: 0;
  max-width: min(78%, 680px);
  flex-direction: column;
}

.user-message .message-wrapper {
  max-width: min(72%, 620px);
  align-items: flex-end;
}

.assistant-message .message-wrapper {
  align-items: flex-start;
}

.message-content {
  width: fit-content;
  max-width: 100%;
  padding: 12px 15px;
  border-radius: 20px;
  line-height: 1.48;
  overflow-wrap: anywhere;
  box-shadow: none;
  transition: border-color 160ms ease, background-color 160ms ease;
}

.assistant-message .message-content {
  border-bottom-left-radius: 7px;
  border-color: rgba(255, 255, 255, 0.075);
  background: rgba(255, 255, 255, 0.055);
}

.user-message .message-content {
  border-bottom-right-radius: 7px;
  border-color: rgba(224, 204, 158, 0.34);
  background: linear-gradient(145deg, rgba(209, 191, 150, 0.22), rgba(209, 191, 150, 0.1)), #1c2229;
}

.message-content:hover {
  border-color: rgba(255, 255, 255, 0.11);
  box-shadow: none;
  transform: none;
}

.message-content p {
  line-height: 1.55;
}

.message-content pre {
  max-width: min(82vw, 700px);
  overflow-x: auto;
}

.message-status {
  min-height: 22px;
  margin: 0;
  padding: 3px 2px 0;
  justify-content: flex-end;
  appearance: none;
  border: 0;
  background: transparent;
  color: rgba(255, 255, 255, 0.44);
  font-size: 0.69rem;
  letter-spacing: 0.005em;
  line-height: 1.2;
}

button.message-status {
  color: #ffb4ab;
  cursor: pointer;
  text-decoration: none;
}

.message-status.seen {
  color: rgba(224, 204, 158, 0.78);
}

.message-status.delivered {
  color: rgba(255, 255, 255, 0.52);
}

.message-status.pending {
  color: rgba(255, 255, 255, 0.42);
}

.message-status.failed {
  color: #ffb4ab;
}

/* Assistant presence */
.presence-message {
  margin-top: -3px;
}

.presence-bubble {
  display: inline-flex;
  min-width: 54px;
  min-height: 38px;
  padding: 10px 14px;
  align-items: center;
  gap: 10px;
  border-color: rgba(255, 255, 255, 0.07) !important;
  background: rgba(255, 255, 255, 0.05) !important;
}

.typing-dots {
  display: inline-flex;
  height: 14px;
  align-items: center;
  gap: 4px;
}

.typing-dots i {
  width: 5px;
  height: 5px;
  border-radius: 50%;
  background: rgba(224, 204, 158, 0.82);
  animation: crump-typing 1.15s infinite ease-in-out;
}

.typing-dots i:nth-child(2) {
  animation-delay: 140ms;
}

.typing-dots i:nth-child(3) {
  animation-delay: 280ms;
}

.presence-label {
  color: rgba(255, 255, 255, 0.61);
  font-size: 0.76rem;
  white-space: nowrap;
}

.message-actions {
  min-height: 30px;
  margin-top: 5px;
  transform: none;
}

.message-action-btn {
  min-height: 30px;
  padding: 5px 10px;
  border-radius: 10px;
  font-size: 0.7rem;
}

/* Attachments and generated images */
.message-attachment {
  width: min(100%, 360px);
  margin-top: 8px;
  padding: 10px 12px;
  border: 1px solid rgba(255, 255, 255, 0.08);
  border-radius: 12px;
  background: rgba(255, 255, 255, 0.035);
}

.file-info {
  min-width: 0;
}

.file-name {
  overflow: hidden;
  color: var(--color-text-primary);
  font-size: 0.82rem;
  font-weight: var(--font-weight-semibold);
  text-overflow: ellipsis;
  white-space: nowrap;
}

.file-meta {
  margin-top: 2px;
  color: var(--color-text-tertiary);
  font-size: 0.7rem;
}

.generated-image-wrapper {
  width: min(100%, 640px);
  margin-top: 10px;
}

.message-image {
  display: block;
  width: 100%;
  height: auto;
  border: 1px solid rgba(255, 255, 255, 0.08);
  border-radius: 16px;
  background: rgba(255, 255, 255, 0.03);
}

.image-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 8px;
}

.image-action-btn {
  min-height: 36px;
  padding: 7px 11px;
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: 10px;
  background: rgba(255, 255, 255, 0.045);
  color: var(--color-text-secondary);
  font-size: 0.72rem;
  cursor: pointer;
}

.image-action-btn:hover {
  border-color: rgba(209, 191, 150, 0.32);
  color: var(--color-text-primary);
}

.file-preview {
  width: min(100%, var(--conversation-width));
  margin: 0 auto 10px;
  padding: 0;
  gap: 8px;
}

.attachment-preview {
  position: relative;
  display: grid;
  min-width: 0;
  padding: 10px 12px;
  grid-template-columns: 42px minmax(0, 1fr) auto;
  align-items: center;
  gap: 12px;
  border: 1px solid rgba(255, 255, 255, 0.08);
  border-radius: 14px;
  background: rgba(255, 255, 255, 0.035);
}

.attachment-preview__image,
.attachment-preview__type {
  width: 42px;
  height: 42px;
  border-radius: 10px;
}

.attachment-preview__image {
  object-fit: cover;
  background: rgba(255, 255, 255, 0.04);
}

.attachment-preview__type {
  display: grid;
  place-items: center;
  border: 1px solid rgba(224, 204, 158, 0.24);
  background: rgba(224, 204, 158, 0.08);
  color: rgba(235, 218, 178, 0.9);
  font-size: 0.66rem;
  font-weight: 750;
  letter-spacing: 0.04em;
}

.attachment-preview--unavailable::before {
  content: 'FILE';
  display: grid;
  width: 42px;
  height: 42px;
  place-items: center;
  border-radius: 10px;
  background: rgba(255, 255, 255, 0.04);
  color: var(--color-text-secondary);
  font-size: 0.65rem;
  font-weight: var(--font-weight-bold);
}

.attachment-preview__details {
  display: grid;
  min-width: 0;
  gap: 2px;
}

.attachment-preview__name {
  overflow: hidden;
  color: var(--color-text-primary);
  font-size: 0.86rem;
  font-weight: var(--font-weight-semibold);
  text-overflow: ellipsis;
  white-space: nowrap;
}

.attachment-preview__size,
.attachment-preview__summary {
  color: var(--color-text-secondary);
  font-size: 0.72rem;
}

.attachment-preview__remove {
  min-height: 36px;
  padding: 0 10px;
  border: 0;
  border-radius: 9px;
  background: transparent;
  color: #ffb4ab;
  font-size: 0.75rem;
  font-weight: 650;
  cursor: pointer;
}

.attachment-preview__remove:hover {
  background: rgba(255, 107, 107, 0.09);
}

.attachment-preview__summary {
  margin: 2px 4px 0;
}

/* Composer and settings */
.input-area {
  padding-right: max(14px, env(safe-area-inset-right));
  padding-left: max(14px, env(safe-area-inset-left));
  border-top: 0;
  background: linear-gradient(180deg, rgba(15, 20, 25, 0), rgba(15, 20, 25, 0.96) 26%, #0f1419 60%);
  -webkit-backdrop-filter: blur(22px) saturate(130%);
  backdrop-filter: blur(22px) saturate(130%);
}

.input-container {
  width: min(100%, var(--conversation-width));
  margin-inline: auto;
  border: 1px solid rgba(255, 255, 255, 0.1);
  box-shadow: 0 10px 34px rgba(0, 0, 0, 0.22);
}

.quick-actions {
  width: min(100%, var(--conversation-width));
  margin-inline: auto;
}

.message-input {
  max-height: 160px;
  line-height: 1.4;
}

.settings-row-action {
  cursor: pointer;
}

.settings-row-divider {
  border-top: 1px solid rgba(255, 255, 255, 0.07);
}

.settings-nested {
  margin: 0 12px 12px;
  overflow: hidden;
  border: 1px solid rgba(255, 255, 255, 0.055);
  border-radius: 16px;
  background: rgba(255, 255, 255, 0.025);
}

.settings-nested[hidden] {
  display: none !important;
}

.check-in-categories {
  display: grid;
  margin: 0;
  padding: 14px 16px 16px;
  gap: 10px;
  border: 0;
  border-top: 1px solid rgba(255, 255, 255, 0.06);
}

.check-in-categories legend {
  padding: 13px 0 0;
  color: var(--color-text-secondary);
  font-size: 0.75rem;
  font-weight: 650;
}

.check-in-categories label {
  display: flex;
  min-height: 36px;
  align-items: center;
  gap: 10px;
  color: var(--color-text-primary);
  font-size: 0.86rem;
}

.check-in-categories input {
  width: 18px;
  height: 18px;
  accent-color: var(--color-accent-primary);
}

.sidebar-footer-link,
.settings-link {
  text-decoration: none;
}

.settings-link-label {
  color: var(--color-accent-primary);
}

.settings-bottom-spacer {
  height: 18px;
}

/* Code rendering */
.message-content .code-block {
  max-width: 100%;
  margin: 14px 0;
  padding: 14px 16px;
  overflow-x: auto;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  background: #0b0f14;
  color: var(--color-text-primary);
  font-family: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, 'Liberation Mono', monospace;
  font-size: 0.88em;
  line-height: 1.6;
  white-space: pre;
}

.message-content .inline-code {
  padding: 0.12em 0.38em;
  border: 1px solid rgba(209, 191, 150, 0.24);
  border-radius: 5px;
  background: rgba(209, 191, 150, 0.1);
  color: var(--color-accent-primary);
  font-family: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, 'Liberation Mono', monospace;
  font-size: 0.92em;
}

/* Scroll affordance */
.scroll-to-end-btn {
  position: fixed;
  right: 2rem;
  bottom: 140px;
  z-index: 100;
  display: flex;
  width: 48px;
  height: 48px;
  align-items: center;
  justify-content: center;
  visibility: hidden;
  opacity: 0;
  border: 1px solid rgba(209, 191, 150, 0.35);
  border-radius: 50%;
  background: var(--color-accent-primary);
  box-shadow: var(--shadow-md);
  cursor: pointer;
  transform: translateY(16px);
  transition: opacity 180ms ease, transform 180ms ease, visibility 180ms ease;
}

.scroll-to-end-btn.visible {
  visibility: visible;
  opacity: 1;
  transform: translateY(0);
}

.scroll-to-end-btn svg {
  width: 22px;
  height: 22px;
  color: var(--color-bg-primary);
}

/* Destructive confirmation dialog */
.confirm-dialog {
  width: min(420px, calc(100% - 2rem));
  padding: 0;
  border: 0;
  border-radius: 18px;
  background: transparent;
  color: var(--color-text-primary);
}

.confirm-dialog::backdrop {
  background: rgba(3, 6, 10, 0.76);
  -webkit-backdrop-filter: blur(10px);
  backdrop-filter: blur(10px);
}

.confirm-dialog__card {
  padding: 1.5rem;
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: 18px;
  background: var(--color-bg-secondary);
  box-shadow: var(--shadow-xl);
}

.confirm-dialog__card h2 {
  margin: 0 0 0.75rem;
  font-size: 1.25rem;
}

.confirm-dialog__card p {
  margin: 0;
  color: var(--color-text-secondary);
  line-height: var(--line-height-relaxed);
}

.confirm-dialog__actions {
  display: flex;
  justify-content: flex-end;
  gap: 0.75rem;
  margin-top: 1.5rem;
}

.confirm-dialog__danger {
  border: 1px solid rgba(239, 68, 68, 0.38);
  background: #b42318;
  color: #fff;
}

.confirm-dialog__danger:hover {
  background: #9f1f16;
}

/* Embedded WebKit behavior */
html,
body {
  position: fixed;
  width: 100%;
  height: 100%;
  margin: 0;
  padding: 0;
  overflow: hidden;
  overscroll-behavior: none;
  -webkit-overflow-scrolling: touch;
}

#authContainer input,
#authContainer textarea,
#loginEmail,
#loginPassword,
#registerName,
#registerEmail,
#registerPassword,
#registerPasswordConfirm {
  -webkit-appearance: none !important;
  -webkit-user-select: text !important;
  user-select: text !important;
  pointer-events: auto !important;
  touch-action: manipulation !important;
}

#authContainer form,
#loginFormElement,
#registerFormElement,
.auth-form-content,
.form-group {
  pointer-events: auto !important;
  touch-action: auto !important;
}

.native-app.keyboard-visible .quick-actions {
  display: none;
}

.native-app.keyboard-visible .input-area {
  padding-bottom: 8px;
}

@keyframes message-enter {
  from {
    opacity: 0;
    transform: translateY(6px) scale(0.992);
  }
  to {
    opacity: 1;
    transform: none;
  }
}

@keyframes crump-typing {
  0%,
  60%,
  100% {
    opacity: 0.42;
    transform: translateY(0);
  }
  30% {
    opacity: 1;
    transform: translateY(-3px);
  }
}

@media (hover: hover) and (pointer: fine) {
  .message-actions {
    opacity: 0;
    pointer-events: none;
  }

  .message:hover .message-actions,
  .message:focus-within .message-actions {
    opacity: 1;
    pointer-events: auto;
  }
}

@media (hover: none), (pointer: coarse) {
  .message-actions {
    opacity: 0.78;
    pointer-events: auto;
  }

  .message-action-btn {
    min-height: 36px;
  }
}

@media (max-width: 640px) {
  .header-full-logo {
    height: 40px;
  }

  .header #menuBtn {
    left: max(10px, env(safe-area-inset-left));
  }

  .connection-status {
    right: max(8px, env(safe-area-inset-right));
    max-width: 38vw;
    font-size: 0.65rem;
  }

  .chat-container {
    padding-top: 18px;
    padding-bottom: 190px;
  }

  .message {
    margin-bottom: 14px;
  }

  .message-wrapper {
    max-width: 86%;
  }

  .user-message .message-wrapper {
    max-width: 82%;
  }

  .message-content {
    padding: 10px 13px;
    border-radius: 18px;
    font-size: 0.96rem;
  }

  .input-area {
    padding-top: 10px;
  }

  .quick-actions {
    margin-bottom: 8px;
  }

  .settings-field,
  .settings-select {
    width: auto;
    min-width: 112px;
    max-width: 48%;
  }

  .scroll-to-end-btn {
    right: 1rem;
    bottom: 120px;
    width: 44px;
    height: 44px;
  }
}

@media (max-width: 480px) {
  .confirm-dialog__actions {
    flex-direction: column-reverse;
  }

  .confirm-dialog__actions .btn {
    width: 100%;
  }

  .device-row {
    align-items: flex-start;
    flex-direction: column;
  }
}

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    scroll-behavior: auto !important;
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }

  .message,
  .typing-dots i {
    animation: none !important;
  }

  .typing-dots i {
    opacity: 0.72;
  }

  .account-modal-backdrop,
  .confirm-dialog::backdrop {
    -webkit-backdrop-filter: none;
    backdrop-filter: none;
  }
}