:root {
  --chat-accent: var(--theme-accent, #0f766e);
  --chat-accent-strong: var(--theme-accent-strong, #075e59);
  --chat-accent-contrast: var(--theme-accent-contrast, #ffffff);
  --chat-ink: var(--ink, #123c3b);
  --chat-muted: var(--muted, #5e7774);
  --chat-line: color-mix(in srgb, var(--chat-accent) 18%, transparent);
  --chat-panel: var(--theme-page-surface, rgba(255, 255, 255, 0.92));
  --chat-soft: var(--theme-page-soft, #effaf8);
}

body[data-page="chat"] { min-height: 100vh; background: radial-gradient(circle at 10% 0%, color-mix(in srgb, var(--chat-accent) 18%, transparent), transparent 34rem), linear-gradient(135deg, var(--theme-page-bg, #f5fffd), var(--theme-page-soft, #e8f5f4) 54%, var(--theme-page-surface, #f7faf9)); color: var(--chat-ink); }
.chat-shell { width: min(1180px, calc(100% - 32px)); margin: 0 auto; padding: 28px 0 48px; }
.chat-mobile-header { display: none; }
.theme-controls { display: none !important; }
.chat-header, .chat-brand, .chat-layout, .chat-card-header, .chat-panel-heading { display: flex; align-items: center; }
.chat-header { justify-content: space-between; gap: 20px; margin-bottom: 24px; }
.chat-brand { color: var(--chat-ink); gap: 12px; text-decoration: none; }
.chat-brand img { width: 52px; height: 52px; object-fit: cover; border-radius: 16px; box-shadow: 0 12px 30px color-mix(in srgb, var(--chat-accent) 18%, transparent); }
.chat-brand span { display: grid; gap: 3px; }
.chat-brand strong { font-size: 1rem; letter-spacing: -0.02em; }
.chat-brand small, .chat-home-link { color: var(--chat-muted); font-size: 0.82rem; }
.chat-home-link { border: 1px solid var(--chat-line); border-radius: 999px; padding: 9px 14px; text-decoration: none; transition: 180ms ease; }
.chat-home-link:hover, .chat-home-link:focus-visible { color: var(--chat-accent-strong); border-color: color-mix(in srgb, var(--chat-accent) 45%, transparent); background: var(--chat-panel); }
.chat-layout { align-items: stretch; gap: 18px; }
.chat-inbox, .chat-card { border: 1px solid var(--chat-line); background: var(--chat-panel); box-shadow: 0 24px 70px color-mix(in srgb, var(--chat-accent-strong) 12%, transparent); backdrop-filter: blur(18px); }
.chat-inbox { width: 300px; min-width: 0; padding: 18px; border-radius: 24px; }
.chat-panel-heading { justify-content: space-between; gap: 10px; margin-bottom: 14px; }
.chat-panel-heading h2 { margin: 4px 0 0; font-size: 1.1rem; }
.chat-kicker { margin: 0; color: var(--chat-accent-strong); font-size: .66rem; font-weight: 800; letter-spacing: .14em; }
.chat-ghost-button { border: 1px solid var(--chat-line); border-radius: 9px; background: transparent; color: var(--chat-accent-strong); cursor: pointer; padding: 7px 9px; font: inherit; font-size: .72rem; }
.conversation-list { display: grid; gap: 8px; max-height: 620px; overflow: auto; }
.conversation-item { display: grid; gap: 4px; width: 100%; border: 1px solid transparent; border-radius: 14px; padding: 12px; text-align: left; color: var(--chat-ink); background: var(--chat-soft); cursor: pointer; transition: 180ms ease; }
.conversation-item:hover, .conversation-item.active { border-color: color-mix(in srgb, var(--chat-accent) 35%, transparent); background: var(--chat-soft); }
.conversation-item-head { display: flex; align-items: center; min-width: 0; gap: 8px; }
.conversation-item-head strong { flex: 1; min-width: 0; }
.conversation-item-badge { display: inline-grid; place-items: center; flex: 0 0 auto; min-width: 22px; height: 22px; padding: 0 6px; border-radius: 999px; background: #dc2626; color: #ffffff; font-size: .68rem; font-weight: 850; line-height: 1; }
.conversation-item strong, .conversation-item small { overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.conversation-item small { color: var(--chat-muted); }
.chat-card { display: grid; grid-template-rows: auto 1fr auto auto; flex: 1; min-width: 0; min-height: 680px; overflow: hidden; border-radius: 28px; }
.chat-card-header { gap: 13px; padding: 22px 24px; border-bottom: 1px solid var(--chat-line); }
.chat-recipient-mark, .chat-empty-orb { display: grid; place-items: center; flex: 0 0 auto; width: 50px; height: 50px; border-radius: 17px; background: linear-gradient(135deg, var(--chat-accent), var(--chat-accent-strong)); color: var(--chat-accent-contrast); font-weight: 800; box-shadow: 0 10px 25px color-mix(in srgb, var(--chat-accent) 24%, transparent); overflow: hidden; }
.chat-recipient-image { width: 100%; height: 100%; object-fit: cover; }
.chat-card-header h1 { margin: 4px 0 2px; font-size: clamp(1.2rem, 2vw, 1.65rem); letter-spacing: -.03em; }
.chat-presence { display: flex; align-items: center; gap: 6px; margin: 0; color: var(--chat-muted); font-size: .78rem; }
.presence-dot { width: 7px; height: 7px; border-radius: 50%; background: #b8c8c5; }
.chat-presence.ready .presence-dot { background: #18a45b; }
.chat-transport { margin-left: auto; border-radius: 999px; background: var(--chat-soft); color: var(--chat-accent-strong); padding: 7px 10px; font-size: .67rem; font-weight: 800; letter-spacing: .08em; }
.chat-auth-state, .chat-empty-state { align-self: center; justify-self: center; max-width: 430px; padding: 30px; text-align: center; }
.chat-auth-state p, .chat-empty-state p { color: var(--chat-muted); line-height: 1.65; }
.chat-primary-button, .chat-send-button { display: inline-flex; align-items: center; justify-content: center; border: 0; border-radius: 12px; background: var(--chat-accent); color: var(--chat-accent-contrast); cursor: pointer; font: inherit; font-weight: 750; text-decoration: none; transition: 180ms ease; }
.chat-primary-button { padding: 11px 16px; }
.chat-primary-button:hover, .chat-primary-button:focus-visible, .chat-send-button:hover:not(:disabled) { background: var(--chat-accent-strong); }
.chat-empty-state h2 { margin: 14px 0 6px; font-size: 1.15rem; }
.chat-empty-orb { width: 46px; height: 46px; margin: 0 auto; }
.chat-messages { display: flex; flex-direction: column; gap: 10px; min-height: 0; padding: 22px 24px; overflow-y: auto; scroll-behavior: smooth; }
.chat-message { max-width: min(76%, 620px); display: flex; align-items: flex-end; gap: 8px; touch-action: pan-y; }
.chat-message.mine { align-self: flex-end; flex-direction: row-reverse; }
.chat-message.theirs { align-self: flex-start; }
.chat-message-body { display: grid; gap: 4px; min-width: 0; }
.chat-message-avatar { display: grid; place-items: center; flex: 0 0 30px; width: 30px; height: 30px; overflow: hidden; border-radius: 50%; background: var(--chat-soft); color: var(--chat-accent-strong); font-size: .67rem; font-weight: 800; }
.chat-message-avatar img { width: 100%; height: 100%; object-fit: cover; }
.chat-bubble { border: 1px solid var(--chat-line); border-radius: 16px 16px 16px 5px; padding: 11px 13px; background: var(--chat-soft); color: var(--chat-ink); line-height: 1.55; white-space: pre-wrap; overflow-wrap: anywhere; }
.chat-message.mine .chat-bubble { border-color: transparent; border-radius: 16px 16px 5px 16px; background: var(--chat-accent); color: var(--chat-accent-contrast); }
html[data-accent="black"] body[data-page="chat"] .chat-bubble,
html[data-accent="custom:#000000"] body[data-page="chat"] .chat-bubble { border-color: #61ab1e; background: #61ab1e; color: #000000; }
.chat-message time { color: var(--chat-muted); font-size: .68rem; }
.chat-message.actions-open .chat-bubble { box-shadow: 0 0 0 3px color-mix(in srgb, var(--chat-accent) 24%, transparent); }
.chat-message.revoked .chat-bubble { border-style: dashed; background: transparent; color: var(--chat-muted); font-style: italic; }
.chat-message-actions { position: fixed; z-index: 1200; display: grid; min-width: 170px; overflow: hidden; border: 1px solid var(--chat-line); border-radius: 14px; background: var(--chat-panel); box-shadow: 0 18px 45px color-mix(in srgb, var(--chat-accent-strong) 24%, transparent); }
.chat-message-actions[hidden] { display: none; }
.chat-message-actions button { border: 0; padding: 11px 14px; background: transparent; color: var(--chat-ink); cursor: pointer; font: inherit; font-size: .78rem; text-align: left; white-space: nowrap; }
.chat-message-actions button:hover:not(:disabled), .chat-message-actions button:focus-visible { background: var(--chat-soft); color: var(--chat-accent-strong); outline: 0; }
.chat-message-actions button + button { border-top: 1px solid var(--chat-line); }
.chat-message-actions button:disabled { cursor: not-allowed; color: var(--chat-muted); opacity: .55; }
.chat-composer { display: flex; align-items: flex-end; gap: 10px; padding: 14px 18px; border-top: 1px solid var(--chat-line); background: var(--chat-panel); }
.chat-typing-status { display: flex; align-items: center; min-height: 18px; gap: 6px; margin: 0; padding: 7px 20px 0; color: var(--chat-muted); font-size: .74rem; }
.chat-typing-status[hidden] { display: none; }
.typing-indicator { display: inline-flex; align-items: center; gap: 3px; min-width: 22px; }
.typing-indicator i { width: 5px; height: 5px; border-radius: 50%; background: var(--chat-accent); animation: chat-typing-bounce 1s ease-in-out infinite; }
.typing-indicator i:nth-child(2) { animation-delay: .14s; }
.typing-indicator i:nth-child(3) { animation-delay: .28s; }
@keyframes chat-typing-bounce { 0%, 60%, 100% { transform: translateY(0); opacity: .45; } 30% { transform: translateY(-4px); opacity: 1; } }
.chat-composer textarea { min-height: 42px; max-height: 130px; flex: 1; resize: none; border: 1px solid var(--chat-line); border-radius: 13px; outline: 0; padding: 11px 13px; background: var(--theme-page-bg, white); color: var(--chat-ink); font: inherit; line-height: 1.4; }
.chat-composer textarea:focus { border-color: var(--chat-accent); box-shadow: 0 0 0 3px color-mix(in srgb, var(--chat-accent) 12%, transparent); }
.chat-send-button { min-width: 66px; min-height: 42px; padding: 0 13px; }
.chat-send-button:disabled { cursor: not-allowed; opacity: .45; }
.chat-footnote { margin: 0; padding: 0 20px 17px; color: var(--chat-muted); font-size: .72rem; text-align: center; }
.sr-only { position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px; overflow: hidden; clip: rect(0,0,0,0); white-space: nowrap; border: 0; }
@media (min-width: 821px) {
  html { min-height: 100%; }
  body[data-page="chat"] { min-height: 100vh; overflow-x: hidden; overflow-y: auto; }
  .chat-shell { box-sizing: border-box; min-height: 100vh; padding: 28px 0; }
  .chat-layout { align-items: flex-start; }
  .chat-inbox { align-self: flex-start; overflow: visible; }
  .conversation-list { max-height: calc(100vh - 170px); overflow-y: auto; overscroll-behavior: contain; }
  .chat-card { position: sticky; top: 28px; height: calc(100vh - 56px); min-height: 0; }
  .chat-messages { overscroll-behavior: contain; }
}
@media (max-width: 820px) {
  body[data-page="chat"] { min-height: 100dvh; overflow: hidden; background: var(--theme-page-bg, #f5fffd); }
  .chat-shell { display: flex; flex-direction: column; width: 100%; height: 100dvh; margin: 0; padding: 0; }
  .chat-header { display: none; }
  .chat-mobile-header { display: flex; align-items: center; gap: 10px; min-height: 62px; padding: max(10px, env(safe-area-inset-top)) 14px 10px; border-bottom: 1px solid var(--chat-line); background: var(--chat-panel); }
  .chat-mobile-back, .chat-mobile-inbox-toggle { display: grid; place-items: center; flex: 0 0 38px; width: 38px; height: 38px; border: 1px solid var(--chat-line); border-radius: 12px; background: var(--chat-panel); color: var(--chat-accent-strong); cursor: pointer; }
  .chat-mobile-back { text-decoration: none; }
  .chat-mobile-back svg, .chat-mobile-inbox-toggle svg { width: 19px; height: 19px; fill: none; stroke: currentColor; stroke-linecap: round; stroke-linejoin: round; stroke-width: 1.8; }
  .chat-mobile-title { display: grid; min-width: 0; flex: 1; gap: 2px; }
  .chat-mobile-title strong { overflow: hidden; text-overflow: ellipsis; white-space: nowrap; font-size: .92rem; }
  .chat-mobile-title small { color: var(--chat-muted); font-size: .7rem; }
  .chat-mobile-inbox-toggle[hidden] { display: none; }
  .chat-layout { position: relative; display: block; flex: 1; min-height: 0; }
  .chat-inbox { position: absolute; z-index: 5; top: 10px; right: 10px; left: 10px; width: auto; max-height: min(70dvh, 560px); padding: 14px; border-radius: 20px; box-shadow: 0 22px 60px color-mix(in srgb, var(--chat-accent-strong) 20%, transparent); }
  .chat-inbox.mobile-collapsed { display: none; }
  .conversation-list { max-height: min(52dvh, 390px); }
  .chat-card { display: grid; grid-template-rows: auto minmax(0, 1fr) auto auto; height: 100%; min-height: 0; border-right: 0; border-left: 0; border-radius: 0; box-shadow: none; }
  .chat-card-header { padding: 14px 16px; }
  .chat-card-header h1 { font-size: 1.05rem; }
  .chat-messages { padding: 16px 12px; }
  .chat-message { max-width: 92%; }
  .chat-composer { padding: 10px 12px max(10px, env(safe-area-inset-bottom)); }
  .chat-typing-status { padding: 6px 14px 0; }
  .chat-footnote { padding-bottom: max(8px, env(safe-area-inset-bottom)); }
}
@media (max-width: 480px) { .chat-card-header { gap: 10px; } .chat-recipient-mark { width: 42px; height: 42px; border-radius: 14px; } .chat-transport { display: none; } .chat-message-avatar { flex-basis: 27px; width: 27px; height: 27px; } .chat-message { gap: 6px; } .chat-message-actions { min-width: 160px; } }
@media (prefers-reduced-motion: reduce) { .chat-home-link, .conversation-item, .chat-primary-button, .chat-send-button { transition: none; } .chat-messages { scroll-behavior: auto; } .typing-indicator i { animation: none; opacity: .75; } }