/* Colores compartidos por el login, el chat, los selectores y la cámara. */
:root,
[data-theme="light"] {
    color-scheme: light;
    --body-bg: #e5eee8;
    --container-bg: #f9fcfa;
    --header-bg: #f4f8f5;
    --header-text: #213e2f;
    --header-border: #ccdcd1;
    --messages-bg: #edf4ef;
    --bubble-sent: #dcefe2;
    --bubble-received: #ffffff;
    --bubble-text: #243c2e;
    --meta-color: #52685c;
    --read-color: #126da3;
    --input-bg: #ffffff;
    --link-color: #176443;
    --cancel-bg: #e5efe8;
    --cancel-hover: #d4e6da;
    --scrollbar-thumb: #afc3b6;
    --scrollbar-hover: #829e8d;
    --camera-bg: #dcf5e7;
    --camera-text: #176443;
    --camera-hover: #c9edd9;
    --accent: #226b49;
    --accent-hover: #195438;
    --accent-text: #ffffff;
    --danger: #a72f3d;
    --danger-hover: #872431;
    --danger-text: #ffffff;
    --quote-bg: #cce3d5;
    --shadow: 0 4px 24px rgb(24 55 37 / 7%);
    --overlay: rgb(7 18 12 / 72%);
    --form-bg: var(--header-bg);
    --form-border: var(--header-border);
    --modal-bg: var(--container-bg);
    --modal-title: var(--header-text);
    --modal-text: var(--meta-color);
    --gif-input-bg: var(--input-bg);
    --gif-input-focus: var(--input-bg);
}

[data-theme="dark"] {
    color-scheme: dark;
    --body-bg: #101a15;
    --container-bg: #17221e;
    --header-bg: #1c2b23;
    --header-text: #edf2f0;
    --header-border: #3b5144;
    --messages-bg: #142019;
    --bubble-sent: #254c3a;
    --bubble-received: #223329;
    --bubble-text: #edf2f0;
    --meta-color: #b1c5b9;
    --read-color: #71c7ff;
    --input-bg: #23372c;
    --link-color: #a4e6c2;
    --cancel-bg: #2b4033;
    --cancel-hover: #385340;
    --scrollbar-thumb: #476251;
    --scrollbar-hover: #789784;
    --camera-bg: #193c34;
    --camera-text: #a4e6c2;
    --camera-hover: #245044;
    --accent: #8cdbad;
    --accent-hover: #ade9c6;
    --accent-text: #153a25;
    --danger: #f4a1ad;
    --danger-hover: #ffc0ca;
    --danger-text: #47131c;
    --quote-bg: #314f3e;
    --shadow: 0 4px 24px rgb(0 0 0 / 16%);
}

/* RESET MEJORADO */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: system-ui, -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
}

.visually-hidden {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    white-space: nowrap;
    border: 0;
}

:focus-visible {
    outline: 2px solid var(--accent);
    outline-offset: 2px;
}

body {
    background: var(--body-bg);
    color: var(--bubble-text);
    font-size: 15px;
    line-height: 1.5;
}

/* Acceso con las mismas superficies y controles del chat. */
.login-page {
    display: flex;
    min-height: 100vh;
    min-height: 100dvh;
    padding: max(24px, env(safe-area-inset-top)) max(16px, env(safe-area-inset-right)) max(24px, env(safe-area-inset-bottom)) max(16px, env(safe-area-inset-left));
}

.login-container {
    width: 100%;
    max-width: 420px;
    margin: auto;
    padding: 32px clamp(20px, 6vw, 32px);
    border: 1px solid var(--header-border);
    border-radius: 20px;
    background: var(--container-bg);
    box-shadow: var(--shadow);
}

.login-theme-actions { display: flex; justify-content: flex-end; margin-bottom: 12px; }
.login-header { margin-bottom: 28px; text-align: center; }
.login-header h1 { margin-bottom: 8px; color: var(--header-text); font-size: 26px; font-weight: 600; }
.login-header p { color: var(--meta-color); font-size: 14px; }
.login-logo {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 56px;
    height: 56px;
    margin: 0 auto 16px;
    border-radius: 16px;
    background: var(--camera-bg);
    color: var(--camera-text);
}
.login-logo .icon { width: 28px; height: 28px; }
.login-form { display: grid; gap: 20px; }
.login-form label { display: block; margin-bottom: 8px; color: var(--header-text); font-size: 14px; font-weight: 600; }
.login-form input {
    width: 100%;
    min-width: 0;
    min-height: 48px;
    padding: 12px 16px;
    border: 1px solid var(--form-border);
    border-radius: 12px;
    background: var(--input-bg);
    color: var(--bubble-text);
    font-size: 16px;
}
.login-form input:focus { border-color: var(--accent); }
.login-form input[aria-invalid="true"] { border-color: var(--danger); }
.login-form .submit-btn {
    min-height: 48px;
    padding: 12px 16px;
    border: 0;
    border-radius: 12px;
    background: var(--accent);
    color: var(--accent-text);
    font-size: 16px;
    font-weight: 600;
    cursor: pointer;
    transition: background 150ms ease;
}
.login-form .submit-btn:hover { background: var(--accent-hover); }
.login-form .error-message {
    padding: 12px;
    border: 1px solid var(--danger);
    border-radius: 12px;
    color: var(--danger);
    font-size: 14px;
}
.login-container .users-hint {
    margin-top: 20px;
    color: var(--meta-color);
    font-size: 13px;
    text-align: center;
    overflow-wrap: anywhere;
}
.login-container .footer-text {
    margin-top: 24px;
    padding-top: 20px;
    border-top: 1px solid var(--header-border);
    color: var(--meta-color);
    font-size: 12px;
    text-align: center;
}

/* CONTENEDOR PRINCIPAL */
.chat-container {
    width: 100%;
    max-width: 1000px;
    margin: 0 auto;
    background: var(--container-bg);
    box-shadow: var(--shadow);
    display: flex;
    flex-direction: column;
    height: 100vh;
    height: 100dvh;
    overflow: hidden;
}

/* HEADER MEJORADO - Estilo WhatsApp discreto */
.chat-container header {
    flex-shrink: 0;
    padding: max(12px, env(safe-area-inset-top)) max(20px, env(safe-area-inset-right)) 12px max(20px, env(safe-area-inset-left));
    background: var(--header-bg);
    color: var(--header-text);
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 16px;
    border-bottom: 1px solid var(--header-border);
}

.header-actions {
    display: flex;
    align-items: center;
    gap: 4px;
}

.contact-info h1 {
    font-size: 18px;
    font-weight: 600;
    overflow-wrap: anywhere;
}

.contact-info { min-width: 0; }
#status-indicator { display: block; color: var(--meta-color); font-size: 12px; }
#status-indicator:empty { display: none; }
.icon-definitions { position: absolute; width: 0; height: 0; overflow: hidden; }
.icon { width: 20px; height: 20px; fill: none; stroke: currentColor; stroke-width: 1.8; stroke-linecap: round; stroke-linejoin: round; flex-shrink: 0; }

/* Acciones de cabecera */
.header-action {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
    min-width: 44px;
    min-height: 44px;
    padding: 8px 12px;
    background: transparent;
    color: var(--meta-color);
    border: 1px solid transparent;
    border-radius: 12px;
    cursor: pointer;
    text-decoration: none;
    font-size: 13px;
    font-weight: 600;
    transition: background 150ms ease, color 150ms ease;
}

.header-action:hover {
    background: var(--cancel-bg);
    color: var(--header-text);
}

.header-action.is-muted {
    background: var(--cancel-bg);
    color: var(--danger);
}

/* MENSAJES */
.messages {
    flex: 1;
    min-height: 0;
    padding: 24px max(24px, env(safe-area-inset-right)) 24px max(24px, env(safe-area-inset-left));
    overflow-y: auto;
    overflow-x: hidden;
    overscroll-behavior: contain;
    scrollbar-color: var(--scrollbar-thumb) transparent;
    display: flex;
    flex-direction: column;
    gap: 12px;
    background: var(--messages-bg);
}

/* BURBUJAS DE MENSAJE - Estilo WhatsApp */
.message {
    flex-shrink: 0;
    min-width: min(240px, 100%);
    max-width: min(80%, 560px);
    padding: 12px 12px 4px;
    border: 1px solid var(--header-border);
    border-radius: 16px;
    position: relative;
    overflow-wrap: anywhere;
    animation: fadeIn 0.2s ease-in;
}

/* MENSAJES ENVIADOS - Verde discreto WhatsApp */
.message.sent {
    align-self: flex-end;
    background: var(--bubble-sent);
    color: var(--bubble-text);
}

/* MENSAJES RECIBIDOS */
.message.received {
    align-self: flex-start;
    background: var(--bubble-received);
    color: var(--bubble-text);
}

.message.sticker-message {
    background: transparent;
    border-color: transparent;
    box-shadow: none;
}

/* META: FECHA Y CHECKMARKS */
.message .meta {
    font-size: 11px;
    margin-top: 8px;
    display: flex;
    flex-wrap: wrap;
    justify-content: flex-end;
    align-items: center;
    color: var(--meta-color);
    gap: 2px;
}

.message .meta span {
    font-size: 11px;
}

.reaction-btn,
.reply-btn,
.edit-btn,
.delete-btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-width: 36px;
    min-height: 36px;
    padding: 8px;
    border: 0;
    border-radius: 10px;
    background: transparent;
    color: var(--meta-color);
    cursor: pointer;
}

.reply-btn {
    margin-right: 0;
}

.delete-btn {
    color: var(--danger);
}

.reply-btn:hover,
.edit-btn:hover,
.delete-btn:hover {
    background: var(--cancel-bg);
}

.message-time { margin-left: auto; white-space: nowrap; }
.meta .icon { width: 16px; height: 16px; }

.edited-marker {
    margin-inline: 4px;
    font-style: italic;
}

/* Edición dentro de la burbuja. */
.message.is-editing {
    width: min(420px, 100%);
    border-color: var(--accent);
}

.message.is-editing > .message-text,
.message.is-editing > .meta {
    display: none;
}

.message-editor fieldset {
    min-width: 0;
    border: 0;
}

.message-editor label {
    display: block;
    color: var(--accent);
    font-size: 12px;
    font-weight: 600;
}

.message-editor textarea {
    display: block;
    width: 100%;
    min-height: 96px;
    max-height: 40dvh;
    margin-top: 8px;
    padding: 10px 12px;
    border: 1px solid var(--form-border);
    border-radius: 12px;
    background: var(--input-bg);
    color: var(--bubble-text);
    font-size: 16px;
    line-height: 1.5;
    resize: vertical;
}

.edit-actions {
    display: flex;
    justify-content: flex-end;
    gap: 8px;
    margin-top: 8px;
}

.edit-actions button {
    min-height: 44px;
    padding: 8px 16px;
    border: 0;
    border-radius: 12px;
    background: var(--accent);
    color: var(--accent-text);
    font-size: 14px;
    font-weight: 600;
    cursor: pointer;
}

.edit-actions button:hover { background: var(--accent-hover); }
.edit-actions .edit-cancel { background: var(--cancel-bg); color: var(--bubble-text); }
.edit-actions .edit-cancel:hover { background: var(--cancel-hover); }
.message-editor fieldset:disabled { opacity: 0.65; }
.message-editor fieldset:disabled button { cursor: wait; }
.edit-status { margin: 8px 0; color: var(--meta-color); font-size: 12px; }
.edit-status:empty { display: none; }
.message-text { white-space: pre-wrap; }

.reply-quote {
    display: flex;
    flex-direction: column;
    gap: 2px;
    margin-bottom: 6px;
    padding: 6px 8px;
    overflow: hidden;
    border-left: 3px solid var(--accent);
    border-radius: 4px;
    background: var(--quote-bg);
    font-size: 13px;
}

.reply-quote strong {
    color: var(--accent);
}

.reply-quote span {
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

/* IMÁGENES EN CHAT */
.chat-image {
    max-width: min(300px, 100%);
    border-radius: 8px;
    margin-top: 4px;
    display: block;
    cursor: zoom-in;
}

.sticker-image {
    display: block;
    width: min(180px, 100%);
    max-height: 180px;
    object-fit: contain;
    cursor: zoom-in;
}

.chat-image:focus-visible,
.sticker-image:focus-visible {
    outline: 3px solid var(--accent);
    outline-offset: 2px;
}

.chat-image.image-zoomed,
.sticker-image.image-zoomed {
    position: fixed;
    inset: 0;
    z-index: 2000;
    width: 100vw;
    height: 100dvh;
    max-width: none;
    max-height: none;
    margin: 0;
    padding: 24px;
    border-radius: 0;
    background: rgba(0, 0, 0, 0.92);
    object-fit: contain;
    cursor: zoom-out;
}

/* REACCIONES */
.reaction-btn:hover,
.message .meta button:hover {
    background: var(--cancel-hover);
}

.message-reactions {
    display: flex;
    flex-wrap: wrap;
    gap: 4px;
    padding-bottom: 4px;
}
.message-reactions:empty { display: none; }

.reaction-chip {
    min-width: 28px;
    min-height: 36px;
    padding: 1px 7px;
    border: 1px solid var(--form-border);
    border-radius: 12px;
    background: var(--container-bg);
    color: var(--bubble-text);
    cursor: pointer;
    box-shadow: var(--shadow);
}

.reaction-chip.mine {
    border-color: var(--accent);
    background: var(--cancel-bg);
}

.reaction-picker {
    position: relative;
    display: flex;
    flex-wrap: wrap;
    gap: 2px;
    padding: 4px;
    margin: 4px 0;
    border: 1px solid var(--form-border);
    border-radius: 12px;
    background: var(--modal-bg);
}

.reaction-picker[hidden] {
    display: none;
}

.reaction-picker button {
    width: 44px;
    height: 44px;
    border: 0;
    border-radius: 50%;
    background: transparent;
    cursor: pointer;
    font-size: 20px;
}

.reaction-picker button:hover,
.reaction-picker button:focus-visible {
    background: var(--cancel-bg);
    transform: scale(1.12);
}

/* Paneles y formulario comparten el espacio inferior. */
.composer {
    display: flex;
    flex-direction: column;
    min-height: 0;
    max-height: 75%;
    flex-shrink: 1;
    overflow-y: auto;
    background: var(--form-bg);
    border-top: 1px solid var(--form-border);
}
.composer-tools {
    display: flex;
    align-items: center;
    gap: 4px;
}

.chat-form {
    display: flex;
    flex-shrink: 0;
    gap: 8px;
    padding: 12px max(16px, env(safe-area-inset-right)) max(12px, env(safe-area-inset-bottom)) max(16px, env(safe-area-inset-left));
    align-items: center;
    flex-wrap: wrap;
}

.reply-preview {
    width: 100%;
    padding: 6px 10px;
    border-left: 3px solid var(--accent);
    border-radius: 6px;
    background: var(--input-bg);
    color: var(--bubble-text);
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 12px;
}

.reply-preview[hidden] {
    display: none;
}

.reply-preview div {
    min-width: 0;
    display: flex;
    flex-direction: column;
}

.reply-preview strong {
    color: var(--accent);
    font-size: 12px;
}

.reply-preview span {
    overflow: hidden;
    color: var(--meta-color);
    font-size: 12px;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.reply-preview button {
    min-width: 32px;
    padding: 4px;
    background: transparent;
    color: var(--meta-color);
    font-size: 22px;
}

.file-preview {
    width: 100%;
    min-width: 0;
    padding: 8px;
    border: 1px solid var(--form-border);
    border-radius: 16px;
    background: var(--input-bg);
    color: var(--bubble-text);
    display: flex;
    align-items: center;
    gap: 12px;
    transition: background 150ms ease, border-color 150ms ease;
}

.file-preview[hidden] {
    display: none;
}

.file-preview img {
    width: 72px;
    height: 72px;
    flex-shrink: 0;
    border-radius: 12px;
    object-fit: contain;
}

.file-preview .file-name {
    display: block;
    flex: 1;
    min-width: 0;
    max-width: none;
    margin: 0;
    color: var(--header-text);
}

.chat-form .file-preview button {
    flex-shrink: 0;
    width: 44px;
    min-width: 44px;
    height: 44px;
    padding: 0;
    background: transparent;
    color: var(--header-text);
    font-size: 22px;
    transition: background 150ms ease, color 150ms ease;
}

.chat-form .file-preview button:hover {
    background: var(--cancel-hover);
    color: var(--bubble-text);
}

.chat-form input[type="text"] {
    flex: 1;
    min-width: 0;
    min-height: 44px;
    padding: 10px 16px;
    border-radius: 12px;
    border: 1px solid var(--form-border);
    background: var(--input-bg);
    color: var(--bubble-text);
    font-size: 16px;
}

.chat-form input[type="text"]:focus {
    border-color: var(--accent);
}

.chat-form button {
    background: var(--accent);
    border: none;
    color: var(--accent-text);
    padding: 10px 16px;
    border-radius: 12px;
    cursor: pointer;
    transition: background 150ms ease, color 150ms ease;
    font-weight: 500;
    font-size: 14px;
    min-width: 80px;
    min-height: 44px;
}

.chat-form button:hover {
    background: var(--accent-hover);
}

.chat-form button:active {
    background: var(--accent-hover);
}

/* Selector de archivos - Minimalista */
.file-input-container {
    position: relative;
    display: flex;
    align-items: center;
}

.file-btn {
    background: none;
    border: none;
    cursor: pointer;
    font-size: 22px;
    min-width: 44px;
    min-height: 44px;
    border-radius: 12px;
    padding: 8px;
    color: var(--meta-color);
    transition: background 150ms ease, color 150ms ease;
    display: flex;
    align-items: center;
    justify-content: center;
}

.file-input-label:hover .file-btn {
    background: var(--cancel-hover);
    color: var(--accent);
}

.file-input-label {
    cursor: pointer;
    display: flex;
    align-items: center;
}

.file-input-label input[type="file"] {
    position: absolute;
    width: 1px;
    height: 1px;
    opacity: 0;
}

.file-input-label:has(input:focus-visible) .file-btn {
    outline: 2px solid var(--accent);
    outline-offset: 2px;
}

.file-name {
    margin-left: 8px;
    font-size: 12px;
    color: var(--meta-color);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
    max-width: 120px;
}

/* SCROLL SUAVE MEJORADO */
.messages::-webkit-scrollbar {
    width: 6px;
}

.messages::-webkit-scrollbar-track {
    background: transparent;
}

.messages::-webkit-scrollbar-thumb {
    background: var(--scrollbar-thumb);
    border-radius: 3px;
}

.messages::-webkit-scrollbar-thumb:hover {
    background: var(--scrollbar-hover);
}

/* ANIMACIONES */
@keyframes fadeIn {
    from { opacity: 0; transform: translateY(10px); }
    to { opacity: 1; transform: translateY(0); }
}

/* Modal de confirmación - Minimalista */
#clear-all-btn {
    color: var(--danger);
}

#clear-all-btn:hover {
    background: var(--cancel-hover);
}

#confirm-modal {
    width: min(400px, calc(100% - 32px));
    max-height: calc(100dvh - 32px);
    margin: auto;
    padding: 24px;
    border: 1px solid var(--form-border);
    border-radius: 20px;
    background: var(--modal-bg);
    box-shadow: var(--shadow);
}

#confirm-modal .modal-content {
    text-align: left;
}

#confirm-modal h3 {
    margin-top: 0;
    margin-bottom: 12px;
    color: var(--modal-title);
    font-size: 20px;
    font-weight: 500;
}

#confirm-modal p {
    margin: 8px 0;
    line-height: 1.5;
    color: var(--modal-text);
    font-size: 14px;
}

.confirm-buttons {
    margin-top: 24px;
    display: flex;
    gap: 12px;
    justify-content: center;
}

.confirm-buttons button {
    border: none;
    min-height: 44px;
    padding: 10px 24px;
    border-radius: 12px;
    cursor: pointer;
    font-size: 14px;
    font-weight: 500;
    transition: background 150ms ease, color 150ms ease;
}

#camera-dialog {
    width: min(560px, calc(100% - 32px));
    max-height: calc(100dvh - 32px);
    margin: auto;
    padding: 20px;
    border-radius: 20px;
    background: var(--modal-bg);
    color: var(--header-text);
    border: 1px solid var(--form-border);
    box-shadow: var(--shadow);
}

#camera-dialog::backdrop,
#confirm-modal::backdrop {
    background: var(--overlay);
}

.camera-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 12px;
    margin-bottom: 4px;
}

.camera-header h3 {
    font-size: 18px;
    font-weight: 600;
}

.camera-header h3 span {
    margin-left: 6px;
    color: var(--danger);
    font-size: 14px;
}

#camera-status {
    margin-bottom: 16px;
    color: var(--meta-color);
    font-size: 13px;
    line-height: 1.5;
}

#camera-video {
    display: block;
    width: 100%;
    aspect-ratio: 4 / 3;
    max-height: 50dvh;
    object-fit: contain;
    border-radius: 12px;
    background: #000;
}

#camera-cancel {
    flex-shrink: 0;
    width: 44px;
    height: 44px;
    border: 0;
    border-radius: 50%;
    background: transparent;
    color: var(--header-text);
    font-size: 28px;
    cursor: pointer;
    transition: background 150ms ease;
}

#camera-cancel:hover {
    background: var(--cancel-hover);
}

.camera-actions {
    display: grid;
    justify-items: center;
    gap: 8px;
    margin-top: 20px;
    font-size: 13px;
}

#camera-capture {
    width: 64px;
    height: 64px;
    border: 3px solid var(--accent);
    border-radius: 50%;
    background: #fff;
    box-shadow: inset 0 0 0 4px var(--modal-bg);
    cursor: pointer;
    transition: transform 150ms ease, opacity 150ms ease;
}

#camera-capture:enabled:hover {
    transform: scale(1.05);
}

#camera-capture:enabled:active {
    transform: scale(0.95);
}

#camera-capture:disabled {
    opacity: 0.5;
    cursor: default;
}

#camera-dialog :focus-visible {
    outline-color: var(--accent);
}

#confirm-cancel {
    background: var(--cancel-bg);
    color: var(--meta-color);
}

#confirm-cancel:hover {
    background: var(--cancel-hover);
}

#confirm-ok {
    background: var(--danger);
    color: var(--danger-text);
}

#confirm-ok:hover {
    background: var(--danger-hover);
}

/* Selector multimedia: contenido desplazable y pestañas siempre visibles. */
.media-panel {
    display: flex;
    flex-direction: column;
    min-height: 0;
    height: 380px;
    max-height: 48dvh;
    background: var(--modal-bg);
    border-bottom: 1px solid var(--form-border);
}
.media-panel [hidden], .media-panel[hidden] { display: none; }
.picker-content {
    flex: 1;
    min-height: 0;
    overflow-y: auto;
    overscroll-behavior: contain;
    padding: 12px 16px;
    scrollbar-gutter: stable;
}
.media-panel h2 {
    color: var(--meta-color);
    font-size: 13px;
    font-weight: 600;
    margin: 4px 0 8px;
}
.emoji-category + .emoji-category { margin-top: 16px; }
#emoji-recents { margin-bottom: 16px; }
.emoji-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(44px, 1fr));
    gap: 4px;
}
.media-tabs { display: flex; gap: 4px; }
.media-tabs {
    flex-shrink: 0;
    padding: 4px 12px;
    border-top: 1px solid var(--form-border);
    background: var(--form-bg);
}
.media-panel button { min-width: 44px; min-height: 44px; }
.media-tabs button, .media-recent, #gif-retry {
    padding: 8px 12px;
    border: 1px solid transparent;
    border-radius: 8px;
    background: transparent;
    color: var(--meta-color);
    font-size: 14px;
    cursor: pointer;
}
.media-tabs button { flex: 1; font-weight: 600; }
.media-tabs button[aria-selected="true"],
.media-recent[aria-pressed="true"] {
    color: var(--camera-text);
    background: var(--camera-bg);
    border-color: var(--form-border);
}
.media-panel button:hover { background: var(--cancel-bg); }
.media-panel button:disabled { cursor: wait; opacity: 0.6; }
.media-search-row {
    display: flex;
    flex-shrink: 0;
    align-items: center;
    gap: 6px;
    padding: 8px 12px 0;
}
.media-recent { display: grid; place-items: center; padding: 8px; }
.media-recent .icon { width: 20px; height: 20px; }
#media-search {
    flex: 1;
    min-width: 0;
    width: 100%;
    min-height: 44px;
    padding: 10px 12px;
    border-radius: 12px;
    border: 1px solid var(--form-border);
    background: var(--input-bg);
    color: var(--bubble-text);
    font-size: 16px;
}
#media-search:focus { border-color: var(--accent); }
#gif-status, #emoji-status { color: var(--meta-color); font-size: 13px; margin: 8px 0; }
#gif-retry { border-color: var(--form-border); margin-bottom: 8px; }
.media-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(104px, 1fr));
    gap: 8px;
}
.media-option {
    padding: 0;
    border: 0;
    border-radius: 8px;
    background: transparent;
    cursor: pointer;
    overflow: hidden;
}
.media-option img {
    width: 100%;
    display: block;
    height: 104px;
    object-fit: contain;
}
.giphy-attribution {
    display: flex;
    align-items: center;
    justify-content: center;
    min-height: 44px;
    flex-shrink: 0;
}
.giphy-attribution img { width: 150px; height: auto; background: #000; }

.chat-form .composer-tool {
    background: transparent;
    border: none;
    color: var(--meta-color);
    cursor: pointer;
    padding: 8px;
    font-size: 14px;
    font-weight: 500;
    border-radius: 8px;
    transition: background 150ms ease, color 150ms ease;
    min-width: 44px;
    min-height: 44px;
}

.chat-form .composer-tool:hover {
    background: var(--cancel-hover);
    color: var(--accent);
}

.chat-form .composer-tool[aria-expanded="true"] {
    background: var(--camera-bg);
    color: var(--camera-text);
}

#camera-btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
    gap: 8px;
    min-width: 44px;
    min-height: 44px;
    padding: 10px 16px;
    border-radius: 12px;
    background: var(--camera-bg);
    color: var(--camera-text);
    transition: background 150ms ease, color 150ms ease;
}

#camera-btn:hover {
    background: var(--camera-hover);
    color: var(--camera-text);
}

#camera-btn:focus-visible,
#file-cancel:focus-visible {
    outline-color: var(--camera-text);
}

.chat-form .reply-preview button {
    min-width: 44px;
    min-height: 44px;
    flex-shrink: 0;
    padding: 4px;
    background: transparent;
    color: var(--meta-color);
}

.emoji-option {
    min-width: 44px;
    min-height: 44px;
    border: 0;
    border-radius: 8px;
    background: transparent;
    cursor: pointer;
    font-size: 22px;
}

.emoji-option:hover {
    background: var(--cancel-bg);
}

/* Indicador de "está escribiendo" */
.typing-indicator {
    padding: 12px 16px;
    margin: 4px 0;
    max-width: 65%;
    align-self: flex-start;
    background: var(--bubble-received);
    border-radius: 8px;
    box-shadow: 0 1px 0.5px rgba(0,0,0,0.13);
    display: flex;
    align-items: center;
    gap: 8px;
    color: var(--meta-color);
    font-size: 14px;
}

.typing-indicator .dots {
    display: flex;
    gap: 4px;
}

.typing-indicator .dots span {
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background: var(--accent);
    animation: typing 1.4s infinite;
}

.typing-indicator .dots span:nth-child(2) {
    animation-delay: 0.2s;
}

.typing-indicator .dots span:nth-child(3) {
    animation-delay: 0.4s;
}

@keyframes typing {
    0%, 60%, 100% {
        opacity: 0.3;
        transform: scale(0.8);
    }
    30% {
        opacity: 1;
        transform: scale(1);
    }
}

/* En móvil, herramientas arriba y mensaje + envío debajo. */
@media (max-width: 600px) {
    .chat-container header {
        flex-wrap: wrap;
        gap: 4px 12px;
        padding: max(8px, env(safe-area-inset-top)) max(12px, env(safe-area-inset-right)) 8px max(12px, env(safe-area-inset-left));
    }
    .contact-info { flex: 1 1 100%; }
    .header-actions { width: 100%; justify-content: flex-end; }
    .messages { padding: 16px max(12px, env(safe-area-inset-right)) 16px max(12px, env(safe-area-inset-left)); }
    .message { max-width: 100%; }
    .chat-form { padding: 8px max(12px, env(safe-area-inset-right)) max(8px, env(safe-area-inset-bottom)) max(12px, env(safe-area-inset-left)); }
    .composer-tools { flex-basis: 100%; }
    #camera-btn { margin-left: auto; }
    .picker-content { padding: 8px 12px; }
    .file-preview img { width: 52px; height: 52px; }
}

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

/* Estilos para enlaces y contenido embebido */
.texto-con-enlaces {
    line-height: 1.5;
}

.enlace-externo {
    color: var(--link-color);
    text-decoration: none;
    word-break: break-all;
    font-weight: 400;
}

.enlace-externo:hover {
    text-decoration: underline;
}

.video-container {
    margin: 8px 0;
    text-align: left;
}

.video-container iframe {
    border-radius: 8px;
    max-width: 100%;
}

.video-container a {
    display: inline-block;
    margin-top: 4px;
    color: var(--link-color);
    text-decoration: none;
    font-size: 13px;
}

.video-container a:hover {
    text-decoration: underline;
}

.link-image {
    margin: 8px 0;
    text-align: left;
}

.link-image img {
    max-width: min(300px, 100%);
    height: auto;
    border-radius: 8px;
}

.link-image a {
    display: inline-block;
    margin-top: 4px;
    color: var(--link-color);
    text-decoration: none;
    font-size: 13px;
}

.link-image a:hover {
    text-decoration: underline;
}

/* Estado de lectura */
.read-status {
    font-size: 11px;
    color: var(--meta-color);
    margin-top: 2px;
    text-align: right;
}

.read-checkmark.read,
.read-status.read {
    color: var(--read-color);
    font-weight: 600;
}

.video-container iframe {
    width: 300px;
    height: auto;
    aspect-ratio: 16 / 9;
    border: 0;
}

input::placeholder { color: var(--meta-color); opacity: 1; }
.message a { color: var(--link-color); }