/* ============================================
   CHUCHO CHAT - Estilos Principales
   Paleta: Platino · Negro · Cian
   ============================================ */

:root {
    /* Colores principales */
    --platinum: #C0C0C0;
    --platinum-light: #D8D8D8;
    --platinum-dark: #A0A0A0;
    --negro: #0D0D0D;
    --negro-suave: #1A1A1E;
    --negro-card: #222228;
    --negro-hover: #2A2A32;
    --negro-input: #18181C;
    --acento: #4FC3F7;
    --acento-hover: #29B6F6;
    --acento-dark: #0288D1;
    --texto: #E8E8E8;
    --texto-muted: #888892;
    --texto-dark: #555560;
    --exito: #66BB6A;
    --error: #EF5350;
    --warning: #FFA726;
    
    /* Tipografía */
    --font-main: 'DM Sans', -apple-system, BlinkMacSystemFont, sans-serif;
    --font-mono: 'JetBrains Mono', monospace;
    
    /* Espaciado */
    --radius: 12px;
    --radius-sm: 8px;
    --radius-lg: 20px;
    --sidebar-width: 360px;
    
    /* Transiciones */
    --transition: all 0.25s cubic-bezier(0.4, 0, 0.2, 1);
}

/* ============================================
   RESET & BASE
   ============================================ */
*, *::before, *::after {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html, body {
    height: 100%;
    overflow: hidden;
}

body {
    font-family: var(--font-main);
    background: var(--negro);
    color: var(--texto);
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

input, select, textarea, button {
    font-family: var(--font-main);
    outline: none;
    border: none;
}

::selection {
    background: var(--acento);
    color: var(--negro);
}

::-webkit-scrollbar {
    width: 5px;
}
::-webkit-scrollbar-track {
    background: transparent;
}
::-webkit-scrollbar-thumb {
    background: var(--negro-hover);
    border-radius: 10px;
}
::-webkit-scrollbar-thumb:hover {
    background: var(--texto-dark);
}

/* ============================================
   VISTAS
   ============================================ */
.vista {
    display: none;
    width: 100%;
    height: 100vh;
    height: 100dvh;
}
.vista.activa {
    display: flex;
}

/* ============================================
   AUTH (LOGIN / REGISTRO / VERIFICACIÓN)
   ============================================ */
.auth-container {
    width: 100%;
    height: 100%;
    display: flex;
    align-items: center;
    justify-content: center;
    background: 
        radial-gradient(ellipse at 20% 50%, rgba(79, 195, 247, 0.06) 0%, transparent 50%),
        radial-gradient(ellipse at 80% 20%, rgba(192, 192, 192, 0.04) 0%, transparent 50%),
        var(--negro);
    position: relative;
    overflow: hidden;
}

.auth-glass {
    width: 100%;
    max-width: 440px;
    padding: 40px 36px;
    background: linear-gradient(145deg, rgba(34, 34, 40, 0.95), rgba(26, 26, 30, 0.98));
    border: 1px solid rgba(192, 192, 192, 0.08);
    border-radius: var(--radius-lg);
    backdrop-filter: blur(20px);
    position: relative;
    z-index: 2;
    animation: slideUp 0.5s cubic-bezier(0.16, 1, 0.3, 1);
}

@keyframes slideUp {
    from { opacity: 0; transform: translateY(30px); }
    to { opacity: 1; transform: translateY(0); }
}

.auth-logo {
    text-align: center;
    margin-bottom: 32px;
}

.logo-icon {
    width: 56px;
    height: 56px;
    margin: 0 auto 16px;
}

.logo-icon svg {
    width: 100%;
    height: 100%;
    filter: drop-shadow(0 4px 12px rgba(79, 195, 247, 0.25));
}

.auth-logo h1 {
    font-size: 26px;
    font-weight: 700;
    letter-spacing: -0.5px;
    background: linear-gradient(135deg, var(--platinum-light), var(--acento));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.auth-logo h2 {
    font-size: 22px;
    font-weight: 600;
    color: var(--texto);
}

.auth-subtitle {
    color: var(--texto-muted);
    font-size: 13px;
    margin-top: 6px;
}

.verificacion-icon {
    margin: 0 auto 12px;
    animation: pulse 2s ease-in-out infinite;
}

@keyframes pulse {
    0%, 100% { opacity: 1; }
    50% { opacity: 0.5; }
}

/* Input groups */
.input-group {
    position: relative;
    margin-bottom: 14px;
    flex: 1;
}

.input-group label {
    display: block;
    font-size: 12px;
    color: var(--texto-muted);
    margin-bottom: 6px;
    font-weight: 500;
}

.input-group input,
.input-group select {
    width: 100%;
    padding: 13px 16px;
    padding-left: 44px;
    background: var(--negro-input);
    border: 1px solid rgba(192, 192, 192, 0.08);
    border-radius: var(--radius);
    color: var(--texto);
    font-size: 14px;
    transition: var(--transition);
}

.input-group input:not([type]),.input-group input[type="text"],
.input-group input[type="number"],
.input-group select {
    padding-left: 16px;
}

.input-group:has(.input-icon) input {
    padding-left: 44px;
}

.input-group input:focus,
.input-group select:focus {
    border-color: var(--acento);
    box-shadow: 0 0 0 3px rgba(79, 195, 247, 0.1);
}

.input-group input::placeholder {
    color: var(--texto-dark);
}

.input-icon {
    position: absolute;
    left: 14px;
    top: 50%;
    transform: translateY(-50%);
    color: var(--texto-dark);
    display: flex;
    pointer-events: none;
}

.input-group:has(label) .input-icon {
    top: calc(50% + 10px);
}

.toggle-pass {
    position: absolute;
    right: 12px;
    top: 50%;
    transform: translateY(-50%);
    background: none;
    color: var(--texto-dark);
    cursor: pointer;
    display: flex;
    padding: 4px;
    transition: var(--transition);
}
.toggle-pass:hover {
    color: var(--texto);
}

.input-row {
    display: flex;
    gap: 12px;
}

/* Buttons */
.btn-primary {
    width: 100%;
    padding: 14px;
    background: linear-gradient(135deg, var(--acento), var(--acento-dark));
    color: #fff;
    border-radius: var(--radius);
    font-size: 15px;
    font-weight: 600;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    transition: var(--transition);
    border: none;
    margin-top: 6px;
}
.btn-primary:hover {
    transform: translateY(-1px);
    box-shadow: 0 8px 24px rgba(79, 195, 247, 0.25);
}
.btn-primary:active {
    transform: translateY(0);
}

.btn-secondary {
    width: 100%;
    padding: 14px;
    background: rgba(192, 192, 192, 0.06);
    color: var(--platinum);
    border: 1px solid rgba(192, 192, 192, 0.15);
    border-radius: var(--radius);
    font-size: 14px;
    font-weight: 500;
    cursor: pointer;
    transition: var(--transition);
}
.btn-secondary:hover {
    background: rgba(192, 192, 192, 0.12);
    border-color: rgba(192, 192, 192, 0.25);
}

.btn-link {
    background: none;
    border: none;
    color: var(--acento);
    font-size: 13px;
    cursor: pointer;
    margin-top: 16px;
    display: block;
    text-align: center;
    width: 100%;
    transition: var(--transition);
}
.btn-link:hover {
    color: var(--acento-hover);
    text-decoration: underline;
}

.auth-divider {
    display: flex;
    align-items: center;
    margin: 20px 0;
    gap: 16px;
}
.auth-divider::before, .auth-divider::after {
    content: '';
    flex: 1;
    height: 1px;
    background: rgba(192, 192, 192, 0.1);
}
.auth-divider span {
    color: var(--texto-dark);
    font-size: 12px;
    text-transform: uppercase;
    letter-spacing: 1px;
}

.auth-mensaje {
    margin-top: 16px;
    padding: 0;
    font-size: 13px;
    text-align: center;
    min-height: 20px;
    transition: var(--transition);
}
.auth-mensaje.error { color: var(--error); }
.auth-mensaje.exito { color: var(--exito); }

/* Code inputs */
.code-inputs {
    display: flex;
    gap: 10px;
    justify-content: center;
    margin: 24px 0;
}

.code-input {
    width: 48px;
    height: 56px;
    text-align: center;
    font-size: 22px;
    font-weight: 700;
    font-family: var(--font-mono);
    background: var(--negro-input);
    border: 2px solid rgba(192, 192, 192, 0.1);
    border-radius: var(--radius);
    color: var(--acento);
    text-transform: uppercase;
    transition: var(--transition);
}
.code-input:focus {
    border-color: var(--acento);
    box-shadow: 0 0 0 3px rgba(79, 195, 247, 0.15);
}

/* Particles */
.auth-particles {
    position: absolute;
    width: 100%;
    height: 100%;
    top: 0;
    left: 0;
    pointer-events: none;
    z-index: 1;
}
.particle {
    position: absolute;
    border-radius: 50%;
    opacity: 0.08;
    animation: floatParticle 20s ease-in-out infinite;
}
.p1 { width: 300px; height: 300px; background: var(--acento); top: -100px; left: -80px; animation-delay: 0s; }
.p2 { width: 200px; height: 200px; background: var(--platinum); bottom: -60px; right: -40px; animation-delay: -5s; }
.p3 { width: 150px; height: 150px; background: var(--acento); top: 40%; right: 10%; animation-delay: -10s; }
.p4 { width: 100px; height: 100px; background: var(--platinum); top: 20%; left: 20%; animation-delay: -15s; }
.p5 { width: 250px; height: 250px; background: var(--acento-dark); bottom: 20%; left: -60px; animation-delay: -8s; }

@keyframes floatParticle {
    0%, 100% { transform: translate(0, 0) scale(1); }
    25% { transform: translate(30px, -30px) scale(1.05); }
    50% { transform: translate(-20px, 20px) scale(0.95); }
    75% { transform: translate(15px, 10px) scale(1.02); }
}

/* ============================================
   CHAT APP LAYOUT
   ============================================ */
.chat-app {
    display: flex;
    width: 100%;
    height: 100vh;
    height: 100dvh;
    background: var(--negro);
}

/* Sidebar */
.sidebar {
    width: var(--sidebar-width);
    min-width: var(--sidebar-width);
    height: 100vh;
    height: 100dvh;
    background: var(--negro-suave);
    border-right: 1px solid rgba(192, 192, 192, 0.06);
    display: flex;
    flex-direction: column;
    overflow: hidden;
}

.sidebar-header {
    padding: 16px 20px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    border-bottom: 1px solid rgba(192, 192, 192, 0.06);
    min-height: 64px;
}

.user-info {
    display: flex;
    align-items: center;
    gap: 12px;
}

.user-name {
    font-size: 15px;
    font-weight: 600;
    color: var(--platinum-light);
}

.sidebar-actions {
    display: flex;
    gap: 4px;
}

.icon-btn {
    width: 36px;
    height: 36px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: none;
    border: none;
    color: var(--texto-muted);
    border-radius: var(--radius-sm);
    cursor: pointer;
    transition: var(--transition);
}
.icon-btn:hover {
    background: rgba(192, 192, 192, 0.08);
    color: var(--texto);
}

.settings-btn {
    position: relative;
    background: linear-gradient(135deg, rgba(79,195,247,0.18), rgba(192,192,192,0.08));
    border: 1px solid rgba(79,195,247,0.22);
    color: var(--platinum-light);
    box-shadow: 0 10px 24px rgba(0,0,0,0.18);
}
.settings-btn:hover {
    transform: translateY(-1px) rotate(10deg);
    background: linear-gradient(135deg, rgba(79,195,247,0.28), rgba(192,192,192,0.12));
    border-color: rgba(79,195,247,0.4);
}
.settings-btn-ring {
    position: absolute;
    inset: -1px;
    border-radius: inherit;
    pointer-events: none;
    box-shadow: inset 0 0 0 1px rgba(255,255,255,0.04);
}

/* Avatar */
.avatar-sm {
    width: 40px;
    height: 40px;
    min-width: 40px;
    border-radius: 50%;
    background: linear-gradient(135deg, var(--acento-dark), var(--acento));
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 700;
    font-size: 16px;
    color: #fff;
    text-transform: uppercase;
}

.avatar-lg {
    width: 48px;
    height: 48px;
    min-width: 48px;
}
.avatar-sm img,
.avatar-perfil-grande img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    border-radius: 50%;
    display: block;
}

/* Search */
.search-box {
    padding: 12px 20px;
    display: flex;
    align-items: center;
    gap: 10px;
    color: var(--texto-dark);
}
.search-box input {
    width: 100%;
    background: var(--negro-input);
    border: 1px solid rgba(192, 192, 192, 0.06);
    border-radius: var(--radius-sm);
    padding: 10px 14px;
    color: var(--texto);
    font-size: 13px;
}
.search-box input::placeholder {
    color: var(--texto-dark);
}
.search-box input:focus {
    border-color: rgba(79, 195, 247, 0.3);
}

/* Chat list */
.chat-list {
    flex: 1;
    overflow-y: auto;
}

.chat-item {
    display: flex;
    align-items: center;
    gap: 14px;
    padding: 14px 20px;
    cursor: pointer;
    transition: var(--transition);
    border-left: 3px solid transparent;
    position: relative;
}
.chat-item:hover {
    background: rgba(192, 192, 192, 0.04);
}
.chat-item.activo {
    background: rgba(79, 195, 247, 0.06);
    border-left-color: var(--acento);
}

.chat-item-info {
    flex: 1;
    min-width: 0;
}
.chat-item-top {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 4px;
}
.chat-item-name {
    font-size: 14px;
    font-weight: 600;
    color: var(--texto);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}
.chat-item-time {
    font-size: 11px;
    color: var(--texto-dark);
    white-space: nowrap;
}
.chat-item-preview {
    font-size: 12px;
    color: var(--texto-muted);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
    display: flex;
    align-items: center;
    gap: 4px;
}

.badge-count {
    background: var(--acento);
    color: #fff;
    font-size: 10px;
    font-weight: 700;
    min-width: 18px;
    height: 18px;
    border-radius: 9px;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 0 5px;
}

/* Search results */
.search-results {
    padding: 12px 20px;
    border-top: 1px solid rgba(192, 192, 192, 0.06);
}
.search-results h4 {
    font-size: 11px;
    text-transform: uppercase;
    letter-spacing: 1px;
    color: var(--texto-dark);
    margin-bottom: 10px;
}

.user-result {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 10px 8px;
    cursor: pointer;
    border-radius: var(--radius-sm);
    transition: var(--transition);
}
.user-result:hover {
    background: rgba(79, 195, 247, 0.08);
}
.user-result-info {
    flex: 1;
}
.user-result-name {
    font-size: 13px;
    font-weight: 500;
}
.user-result-email {
    font-size: 11px;
    color: var(--texto-dark);
}

/* ============================================
   CHAT AREA
   ============================================ */
.chat-area {
    flex: 1;
    display: flex;
    flex-direction: column;
    overflow: hidden;
    position: relative;
}

.chat-empty {
    flex: 1;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 16px;
    color: var(--texto-dark);
    text-align: center;
    padding: 40px;
}
.chat-empty h3 {
    color: var(--texto-muted);
    font-size: 24px;
    font-weight: 600;
}
.chat-empty p {
    font-size: 14px;
    max-width: 400px;
}
.encrypted-badge {
    display: flex;
    align-items: center;
    gap: 6px;
    font-size: 12px !important;
    color: var(--acento) !important;
    opacity: 0.7;
    margin-top: 16px;
}

.chat-active {
    display: flex;
    flex-direction: column;
    height: 100%;
}

/* Chat header */
.chat-header {
    display: flex;
    align-items: center;
    gap: 14px;
    padding: 12px 20px;
    background: var(--negro-suave);
    border-bottom: 1px solid rgba(192, 192, 192, 0.06);
    min-height: 64px;
}

.back-btn {
    display: none;
}

.chat-header-info {
    flex: 1;
}
.chat-header-info h4 {
    font-size: 15px;
    font-weight: 600;
}
.chat-status {
    font-size: 11px;
    color: var(--texto-dark);
}
.chat-status.conectado {
    color: var(--exito);
}

.chat-header-actions {
    display: flex;
    gap: 4px;
}

/* Messages */
.messages-container {
    flex: 1;
    overflow-y: auto;
    padding: 20px;
    background: 
        radial-gradient(ellipse at 0% 100%, rgba(79, 195, 247, 0.02), transparent 50%),
        var(--negro);
}

.messages-list {
    display: flex;
    flex-direction: column;
    gap: 4px;
    max-width: 900px;
    margin: 0 auto;
}

.message-date-separator {
    text-align: center;
    padding: 12px 0;
}
.message-date-separator span {
    background: rgba(192, 192, 192, 0.08);
    color: var(--texto-muted);
    font-size: 11px;
    padding: 5px 14px;
    border-radius: 20px;
}

.message-bubble {
    max-width: 65%;
    padding: 10px 14px;
    border-radius: 12px;
    position: relative;
    animation: msgIn 0.25s cubic-bezier(0.16, 1, 0.3, 1);
    word-wrap: break-word;
}

@keyframes msgIn {
    from { opacity: 0; transform: translateY(10px) scale(0.97); }
    to { opacity: 1; transform: translateY(0) scale(1); }
}

.message-received {
    align-self: flex-start;
    background: var(--negro-card);
    border-bottom-left-radius: 4px;
}

.message-sent {
    align-self: flex-end;
    background: linear-gradient(135deg, rgba(79, 195, 247, 0.15), rgba(2, 136, 209, 0.2));
    border: 1px solid rgba(79, 195, 247, 0.12);
    border-bottom-right-radius: 4px;
}

.message-chatbot {
    align-self: flex-start;
    background: linear-gradient(135deg, rgba(192, 192, 192, 0.08), rgba(192, 192, 192, 0.04));
    border: 1px solid rgba(192, 192, 192, 0.08);
    border-bottom-left-radius: 4px;
}
.message-chatbot::before {
    content: '🤖';
    position: absolute;
    top: -8px;
    left: -8px;
    font-size: 16px;
}

.message-text {
    font-size: 14px;
    line-height: 1.45;
    color: var(--texto);
}

.message-meta {
    display: flex;
    align-items: center;
    justify-content: flex-end;
    gap: 6px;
    margin-top: 4px;
}

.message-time {
    font-size: 10px;
    color: var(--texto-dark);
}

.message-check {
    color: var(--acento);
    font-size: 10px;
}

.message-file {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 8px 10px;
    background: rgba(0,0,0,0.2);
    border-radius: var(--radius-sm);
    margin-bottom: 6px;
    cursor: pointer;
    transition: var(--transition);
}
.message-file:hover {
    background: rgba(0,0,0,0.3);
}
.message-file-icon {
    color: var(--acento);
}
.message-file-name {
    font-size: 12px;
    color: var(--texto);
    word-break: break-all;
}
.message-file-size {
    font-size: 10px;
    color: var(--texto-dark);
}

.message-image img {
    max-width: 280px;
    max-height: 300px;
    border-radius: var(--radius-sm);
    cursor: pointer;
}

.message-sender {
    font-size: 11px;
    font-weight: 600;
    color: var(--acento);
    margin-bottom: 4px;
}

/* Context menu */
.message-bubble:hover .msg-delete {
    opacity: 1;
}
.msg-delete {
    position: absolute;
    top: 4px;
    right: 4px;
    width: 24px;
    height: 24px;
    background: rgba(0,0,0,0.5);
    border: none;
    border-radius: 50%;
    color: var(--texto-dark);
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    transition: var(--transition);
    font-size: 12px;
}
.msg-delete:hover {
    color: var(--error);
    background: rgba(0,0,0,0.7);
}

/* Emoji picker */
.emoji-picker {
    background: var(--negro-card);
    border-top: 1px solid rgba(192, 192, 192, 0.06);
    padding: 12px;
    max-height: 220px;
    overflow-y: auto;
}
.emoji-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(36px, 1fr));
    gap: 4px;
}
.emoji-btn {
    width: 36px;
    height: 36px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: none;
    border: none;
    font-size: 20px;
    cursor: pointer;
    border-radius: var(--radius-sm);
    transition: var(--transition);
}
.emoji-btn:hover {
    background: rgba(192, 192, 192, 0.1);
    transform: scale(1.2);
}

/* Chat footer */
.chat-footer {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 12px 16px;
    padding-bottom: calc(12px + env(safe-area-inset-bottom));
    background: var(--negro-suave);
    border-top: 1px solid rgba(192, 192, 192, 0.06);
}

.message-input-wrapper {
    flex: 1;
}
.message-input-wrapper input {
    width: 100%;
    padding: 12px 16px;
    background: var(--negro-input);
    border: 1px solid rgba(192, 192, 192, 0.06);
    border-radius: 24px;
    color: var(--texto);
    font-size: 14px;
    transition: var(--transition);
}
.message-input-wrapper input:focus {
    border-color: rgba(79, 195, 247, 0.3);
    box-shadow: 0 0 0 3px rgba(79, 195, 247, 0.05);
}
.message-input-wrapper input::placeholder {
    color: var(--texto-dark);
}

.btn-send {
    width: 44px;
    height: 44px;
    min-width: 44px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, var(--acento), var(--acento-dark));
    border: none;
    border-radius: 50%;
    color: #fff;
    cursor: pointer;
    transition: var(--transition);
}
.btn-send:hover {
    transform: scale(1.05);
    box-shadow: 0 4px 16px rgba(79, 195, 247, 0.3);
}

/* ============================================
   MODAL
   ============================================ */
.modal-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.6);
    backdrop-filter: blur(4px);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 1000;
    animation: fadeIn 0.2s ease;
}

@keyframes fadeIn {
    from { opacity: 0; }
    to { opacity: 1; }
}

.modal-content {
    width: 100%;
    max-width: 460px;
    background: var(--negro-suave);
    border: 1px solid rgba(192, 192, 192, 0.1);
    border-radius: var(--radius-lg);
    overflow: hidden;
    animation: slideUp 0.3s cubic-bezier(0.16, 1, 0.3, 1);
}

.modal-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 20px 24px;
    border-bottom: 1px solid rgba(192, 192, 192, 0.06);
}
.modal-header h3 {
    font-size: 16px;
    font-weight: 600;
}

.modal-body {
    padding: 24px;
}
.modal-body .input-group {
    margin-bottom: 16px;
}
.modal-body select {
    width: 100%;
    padding: 12px 14px;
    background: var(--negro-input);
    border: 1px solid rgba(192, 192, 192, 0.08);
    border-radius: var(--radius-sm);
    color: var(--texto);
    font-size: 14px;
}
.modal-body select option {
    background: var(--negro-card);
}

/* ============================================
   CHATBOT ENTRY (Meta AI style)
   ============================================ */
.chatbot-entry {
    display: flex;
    align-items: center;
    gap: 14px;
    padding: 14px 20px;
    cursor: pointer;
    transition: var(--transition);
    border-bottom: 1px solid rgba(192, 192, 192, 0.06);
    background: linear-gradient(135deg, rgba(79, 195, 247, 0.04), rgba(192, 192, 192, 0.02));
}
.chatbot-entry:hover {
    background: linear-gradient(135deg, rgba(79, 195, 247, 0.08), rgba(192, 192, 192, 0.04));
}
.chatbot-entry.activo {
    background: rgba(79, 195, 247, 0.1);
    border-left: 3px solid var(--acento);
}

.chatbot-avatar {
    width: 44px;
    height: 44px;
    min-width: 44px;
    border-radius: 50%;
    background: linear-gradient(135deg, #7C4DFF, #448AFF, #00BCD4);
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
    box-shadow: 0 2px 12px rgba(124, 77, 255, 0.3);
}
.chatbot-avatar::after {
    content: '';
    position: absolute;
    inset: -2px;
    border-radius: 50%;
    background: linear-gradient(135deg, #7C4DFF, #00BCD4);
    z-index: -1;
    opacity: 0.4;
    animation: botGlow 3s ease-in-out infinite;
}
@keyframes botGlow {
    0%, 100% { opacity: 0.2; transform: scale(1); }
    50% { opacity: 0.5; transform: scale(1.05); }
}

.chatbot-entry-info {
    flex: 1;
    min-width: 0;
}
.chatbot-entry-name {
    display: block;
    font-size: 14px;
    font-weight: 600;
    color: var(--texto);
}
.chatbot-entry-desc {
    display: block;
    font-size: 11px;
    color: var(--texto-muted);
    margin-top: 2px;
}
.chatbot-entry-badge {
    background: linear-gradient(135deg, #7C4DFF, #448AFF);
    color: #fff;
    font-size: 10px;
    font-weight: 700;
    padding: 3px 8px;
    border-radius: 10px;
    letter-spacing: 0.5px;
}

/* ============================================
   USUARIOS MODAL
   ============================================ */
.modal-usuarios {
    max-width: 500px;
    max-height: 80vh;
    display: flex;
    flex-direction: column;
}
.usuarios-lista {
    max-height: 400px;
    overflow-y: auto;
    padding: 8px 0;
}
.usuario-item {
    display: flex;
    align-items: center;
    gap: 14px;
    padding: 12px 20px;
    cursor: pointer;
    transition: var(--transition);
}
.usuario-item:hover {
    background: rgba(79, 195, 247, 0.06);
}
.usuario-item-info {
    flex: 1;
    min-width: 0;
}
.usuario-item-name {
    font-size: 14px;
    font-weight: 500;
    color: var(--texto);
}
.usuario-item-email {
    font-size: 11px;
    color: var(--texto-dark);
    margin-top: 2px;
}
.usuario-item-status {
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background: var(--texto-dark);
}
.usuario-item-status.conectado {
    background: var(--exito);
    box-shadow: 0 0 6px rgba(102, 187, 106, 0.5);
}
.usuario-item .btn-chat-sm {
    padding: 6px 14px;
    font-size: 11px;
    font-weight: 600;
    background: rgba(79, 195, 247, 0.12);
    color: var(--acento);
    border: 1px solid rgba(79, 195, 247, 0.2);
    border-radius: 20px;
    cursor: pointer;
    transition: var(--transition);
    white-space: nowrap;
}
.usuario-item .btn-chat-sm:hover {
    background: rgba(79, 195, 247, 0.2);
    border-color: var(--acento);
}

/* ============================================
   TOAST NOTIFICATIONS
   ============================================ */
.toast-container {
    position: fixed;
    top: 20px;
    right: 20px;
    z-index: 9999;
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.toast {
    padding: 14px 20px;
    border-radius: var(--radius);
    font-size: 13px;
    font-weight: 500;
    color: #fff;
    animation: toastIn 0.3s cubic-bezier(0.16, 1, 0.3, 1);
    box-shadow: 0 8px 24px rgba(0, 0, 0, 0.3);
    max-width: 340px;
}
.toast.exito { background: var(--exito); }
.toast.error { background: var(--error); }
.toast.info { background: var(--acento-dark); }

@keyframes toastIn {
    from { opacity: 0; transform: translateX(100px); }
    to { opacity: 1; transform: translateX(0); }
}

/* ============================================
   LOADING SPINNER
   ============================================ */
.spinner {
    width: 20px;
    height: 20px;
    border: 2px solid rgba(255,255,255,0.2);
    border-top-color: #fff;
    border-radius: 50%;
    animation: spin 0.6s linear infinite;
    display: inline-block;
}

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

/* ============================================
   RESPONSIVE
   ============================================ */
@media (max-width: 768px) {
    .chat-app {
        flex-direction: column;
    }

    .sidebar {
        width: 100%;
        min-width: 100%;
        height: 100vh;
        height: 100dvh;
        position: absolute;
        z-index: 10;
        transition: var(--transition);
    }

    .sidebar.oculto {
        transform: translateX(-100%);
    }

    .chat-area {
        width: 100%;
    }

    .back-btn {
        display: flex !important;
    }

    .message-bubble {
        max-width: 85%;
    }

    .auth-glass {
        margin: 16px;
        padding: 30px 24px;
    }

    .code-input {
        width: 40px;
        height: 48px;
        font-size: 18px;
    }

    .input-row {
        flex-direction: column;
        gap: 0;
    }
}

@media (max-width: 480px) {
    .sidebar-header {
        padding: 12px 16px;
    }
    .search-box {
        padding: 8px 16px;
    }
    .chat-item {
        padding: 12px 16px;
    }
    .chat-footer {
        padding: 10px 12px;
        padding-bottom: calc(10px + env(safe-area-inset-bottom));
    }
}

/* ============================================
   TYPING ANIMATION
   ============================================ */
.typing-indicator {
    display: flex;
    gap: 4px;
    padding: 8px 0;
}
.typing-indicator span {
    width: 6px;
    height: 6px;
    background: var(--texto-dark);
    border-radius: 50%;
    animation: typing 1.4s infinite;
}
.typing-indicator span:nth-child(2) { animation-delay: 0.2s; }
.typing-indicator span:nth-child(3) { animation-delay: 0.4s; }

@keyframes typing {
    0%, 60%, 100% { transform: translateY(0); opacity: 0.4; }
    30% { transform: translateY(-6px); opacity: 1; }
}

/* Online indicator */
.online-dot {
    width: 10px;
    height: 10px;
    background: var(--exito);
    border-radius: 50%;
    border: 2px solid var(--negro-suave);
    position: absolute;
    bottom: 0;
    right: 0;
}

.avatar-wrapper {
    position: relative;
}


/* Perfil */
.modal-subtitle {
    margin-top: 6px;
    color: var(--texto-dark);
    font-size: 13px;
}

.modal-perfil {
    width: min(980px, calc(100vw - 32px));
    max-height: calc(100vh - 32px);
    overflow-y: auto;
}

.perfil-modal-body {
    display: grid;
    grid-template-columns: 300px minmax(0, 1fr);
    gap: 28px;
    padding: 24px;
    align-items: start;
}

.perfil-avatar-panel {
    position: sticky;
    top: 0;
}

.avatar-perfil-card {
    background: rgba(255,255,255,0.03);
    border: 1px solid rgba(255,255,255,0.08);
    border-radius: 22px;
    padding: 18px;
}

.avatar-perfil-grande {
    width: 180px;
    height: 180px;
    border-radius: 50%;
    background: linear-gradient(135deg, var(--acento-dark), var(--acento));
    display: flex;
    align-items: center;
    justify-content: center;
    color: #fff;
    font-size: 56px;
    font-weight: 700;
    margin: 0 auto 18px;
    overflow: hidden;
    box-shadow: 0 18px 40px rgba(0,0,0,0.2);
}

.avatar-perfil-grande img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.perfil-avatar-actions,
.perfil-actions,
.perfil-camera-actions {
    display: flex;
    gap: 12px;
    flex-wrap: wrap;
}

.perfil-avatar-actions .btn-secondary,
.perfil-camera-actions .btn-secondary,
.perfil-camera-actions .btn-primary {
    flex: 1 1 0;
}

.btn-secondary {
    background: rgba(255,255,255,0.06);
    color: var(--texto);
    border: 1px solid rgba(255,255,255,0.08);
    padding: 12px 16px;
    border-radius: 12px;
    cursor: pointer;
    transition: var(--transition);
}

.btn-secondary:hover {
    background: rgba(255,255,255,0.1);
}

.perfil-help {
    color: var(--texto-dark);
    font-size: 12px;
    margin-top: 12px;
    line-height: 1.6;
}

.perfil-form-panel {
    min-width: 0;
}

.perfil-section-head {
    margin-bottom: 14px;
}

.perfil-section-head h4 {
    margin-bottom: 6px;
    font-size: 21px;
}

.perfil-section-head p {
    color: var(--texto-dark);
    font-size: 13px;
    line-height: 1.5;
}

.perfil-grid {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 14px;
}

.perfil-form-panel .input-group {
    margin-bottom: 0;
}

.input-full {
    grid-column: 1 / -1;
}

.btn-full {
    width: 100%;
    justify-content: center;
}

.perfil-password-box {
    margin-top: 26px;
    padding-top: 18px;
    border-top: 1px solid rgba(255,255,255,0.08);
}

.camera-box {
    margin-top: 16px;
    background: rgba(255,255,255,0.03);
    border: 1px solid rgba(255,255,255,0.08);
    border-radius: 16px;
    padding: 12px;
}

#perfil-camera-video {
    width: 100%;
    border-radius: 14px;
    display: block;
    background: #000;
    aspect-ratio: 4 / 3;
    object-fit: cover;
    margin-bottom: 12px;
}

@media (max-width: 980px) {
    .modal-perfil {
        width: min(760px, calc(100vw - 24px));
    }

    .perfil-modal-body {
        grid-template-columns: 1fr;
    }

    .perfil-avatar-panel {
        position: static;
    }
}

@media (max-width: 640px) {
    .modal-perfil {
        width: calc(100vw - 16px);
        max-height: calc(100vh - 16px);
        border-radius: 18px;
    }

    .perfil-modal-body {
        padding: 16px;
        gap: 18px;
    }

    .avatar-perfil-card {
        padding: 14px;
    }

    .avatar-perfil-grande {
        width: 140px;
        height: 140px;
        font-size: 42px;
    }

    .perfil-grid {
        grid-template-columns: 1fr;
    }

    .perfil-avatar-actions,
    .perfil-actions,
    .perfil-camera-actions {
        flex-direction: column;
    }

    .perfil-section-head h4 {
        font-size: 18px;
    }
}


/* ===== Ajustes responsive perfil + notas de voz ===== */
.message-audio {
    min-width: min(320px, 62vw);
    max-width: 100%;
    padding: 10px 12px;
    background: rgba(0,0,0,0.18);
    border-radius: 14px;
    margin-bottom: 6px;
}
.message-audio audio {
    width: 100%;
    display: block;
}
.mic-btn.recording {
    background: rgba(239, 83, 80, 0.18);
    color: #ff8a80;
    box-shadow: 0 0 0 4px rgba(239, 83, 80, 0.08);
}
.audio-recording-bar {
    display: flex;
    align-items: center;
    gap: 10px;
    margin-top: 8px;
    padding: 10px 12px;
    border-radius: 14px;
    background: rgba(239, 83, 80, 0.08);
    color: var(--texto);
    font-size: 13px;
}
.audio-recording-dot {
    width: 10px;
    height: 10px;
    border-radius: 50%;
    background: #ff5f57;
    box-shadow: 0 0 0 0 rgba(255, 95, 87, 0.65);
    animation: pulseRecord 1.2s infinite;
}
@keyframes pulseRecord {
    0% { box-shadow: 0 0 0 0 rgba(255, 95, 87, 0.65); }
    70% { box-shadow: 0 0 0 12px rgba(255, 95, 87, 0); }
    100% { box-shadow: 0 0 0 0 rgba(255, 95, 87, 0); }
}

.modal-perfil {
    width: min(1120px, calc(100vw - 48px)) !important;
    max-height: calc(100vh - 32px);
}
.perfil-modal-body {
    display: grid;
    grid-template-columns: minmax(320px, 420px) minmax(440px, 1fr) !important;
    gap: 32px !important;
    padding: 28px !important;
    align-items: start;
}
.perfil-avatar-panel,
.perfil-form-panel {
    min-width: 0;
}
.avatar-perfil-card {
    padding: 24px;
}
.avatar-perfil-grande {
    width: 230px;
    height: 230px;
    font-size: 68px;
    margin-bottom: 22px;
}
.perfil-avatar-actions {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 14px;
}
.perfil-help {
    font-size: 13px;
    line-height: 1.65;
}
.perfil-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 16px;
}
.perfil-password-box {
    margin-top: 28px;
    padding-top: 22px;
}

@media (max-width: 1366px) {
    .modal-perfil {
        width: min(900px, calc(100vw - 28px)) !important;
    }
    .perfil-modal-body {
        grid-template-columns: 1fr !important;
        gap: 24px !important;
        padding: 24px !important;
    }
    .perfil-avatar-panel {
        position: static;
    }
    .avatar-perfil-card {
        max-width: 680px;
    }
}
@media (max-width: 640px) {
    .perfil-grid,
    .perfil-avatar-actions {
        grid-template-columns: 1fr !important;
    }
    .message-audio {
        min-width: 0;
        width: 100%;
    }
}


/* ===== Fix laptop layout perfil/chat ===== */
.chat-item {
    min-width: 0;
}
.chat-item-preview {
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}
.modal-perfil {
    width: min(1180px, calc(100vw - 40px)) !important;
}
.perfil-modal-body {
    grid-template-columns: minmax(280px, 360px) minmax(0, 1fr) !important;
}
.perfil-form-panel {
    width: 100%;
}
.perfil-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
}
@media (max-width: 1536px) {
    .modal-perfil {
        width: min(900px, calc(100vw - 24px)) !important;
    }
    .perfil-modal-body {
        grid-template-columns: 1fr !important;
        gap: 20px !important;
        padding: 22px !important;
    }
    .perfil-avatar-panel {
        position: static !important;
    }
    .avatar-perfil-card {
        max-width: none;
    }
    .perfil-grid,
    .perfil-avatar-actions,
    .perfil-camera-actions {
        grid-template-columns: 1fr !important;
        flex-direction: column;
    }
}
@media (max-width: 900px) {
    .message-bubble {
        max-width: 88%;
    }
}

/* ============================================
   RECONOCIMIENTO FACIAL
   ============================================ */

.btn-face-login {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
    width: 100%;
    padding: 14px 20px;
    background: linear-gradient(135deg, #1a237e, #0d47a1);
    color: #fff;
    border: 1px solid rgba(79, 195, 247, 0.3);
    border-radius: var(--radius);
    font-size: 14px;
    font-weight: 600;
    cursor: pointer;
    transition: var(--transition);
    margin-bottom: 10px;
    font-family: var(--font-main);
}

.btn-face-login:hover {
    background: linear-gradient(135deg, #283593, #1565c0);
    border-color: var(--acento);
    transform: translateY(-1px);
    box-shadow: 0 4px 20px rgba(79, 195, 247, 0.2);
}

.btn-face-login:active {
    transform: translateY(0);
}

.face-modal {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.85);
    z-index: 1000;
    display: flex;
    align-items: center;
    justify-content: center;
    animation: fadeIn 0.3s ease;
}

.face-modal-content {
    background: var(--negro-card);
    border-radius: var(--radius-lg);
    padding: 30px;
    max-width: 480px;
    width: 90%;
    text-align: center;
    border: 1px solid rgba(255,255,255,0.08);
}

.face-modal-content h3 {
    color: var(--texto);
    margin-bottom: 8px;
    font-size: 20px;
}

.face-modal-content p {
    color: var(--texto-muted);
    font-size: 13px;
    margin-bottom: 16px;
}

.face-camera-container {
    position: relative;
    width: 100%;
    max-width: 400px;
    margin: 0 auto 16px;
    border-radius: var(--radius);
    overflow: hidden;
    background: var(--negro);
    aspect-ratio: 4/3;
}

.face-camera-container video {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transform: scaleX(-1);
}

.face-camera-container canvas {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    transform: scaleX(-1);
}

.face-overlay {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 200px;
    height: 250px;
    border: 3px dashed rgba(79, 195, 247, 0.5);
    border-radius: 50%;
    pointer-events: none;
    transition: border-color 0.3s ease;
}

.face-overlay.detected {
    border-color: var(--exito);
    border-style: solid;
    box-shadow: 0 0 30px rgba(102, 187, 106, 0.3);
}

.face-overlay.scanning {
    border-color: var(--acento);
    animation: facePulse 1.5s ease infinite;
}

@keyframes facePulse {
    0%, 100% { box-shadow: 0 0 10px rgba(79, 195, 247, 0.2); }
    50% { box-shadow: 0 0 30px rgba(79, 195, 247, 0.5); }
}

.face-modal-actions {
    display: flex;
    gap: 10px;
    justify-content: center;
    margin-top: 12px;
}

/* Registro facial en perfil */
.perfil-face-box {
    margin-top: 20px;
    padding-top: 20px;
    border-top: 1px solid rgba(255,255,255,0.06);
}

.face-register-status {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 12px 16px;
    background: var(--negro-input);
    border-radius: var(--radius-sm);
    margin-bottom: 16px;
    font-size: 14px;
    color: var(--texto-muted);
}

.face-register-status.active {
    background: rgba(102, 187, 106, 0.1);
    color: var(--exito);
    border: 1px solid rgba(102, 187, 106, 0.2);
}

.face-status-icon {
    font-size: 20px;
}

.face-register-camera {
    max-width: 350px;
    margin-bottom: 12px;
}

/* ============================================
   NOTIFICACIONES WEB
   ============================================ */

.notification-badge {
    position: absolute;
    top: -4px;
    right: -4px;
    background: var(--error);
    color: #fff;
    font-size: 10px;
    font-weight: 700;
    min-width: 18px;
    height: 18px;
    border-radius: 9px;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 0 4px;
    animation: badgePop 0.3s ease;
}

@keyframes badgePop {
    0% { transform: scale(0); }
    50% { transform: scale(1.2); }
    100% { transform: scale(1); }
}

.notification-toast {
    position: fixed;
    top: 20px;
    right: 20px;
    background: var(--negro-card);
    border: 1px solid rgba(79, 195, 247, 0.3);
    border-radius: var(--radius);
    padding: 14px 18px;
    display: flex;
    align-items: center;
    gap: 12px;
    box-shadow: 0 8px 32px rgba(0,0,0,0.4);
    z-index: 10000;
    animation: slideInRight 0.3s ease;
    cursor: pointer;
    max-width: 360px;
    transition: var(--transition);
}

.notification-toast:hover {
    border-color: var(--acento);
    transform: translateX(-4px);
}

.notification-toast .notif-avatar {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    background: var(--acento);
    display: flex;
    align-items: center;
    justify-content: center;
    color: #fff;
    font-weight: 700;
    font-size: 16px;
    flex-shrink: 0;
}

.notification-toast .notif-body {
    flex: 1;
    min-width: 0;
}

.notification-toast .notif-name {
    font-weight: 600;
    color: var(--texto);
    font-size: 13px;
    display: block;
}

.notification-toast .notif-text {
    color: var(--texto-muted);
    font-size: 12px;
    display: block;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.notification-toast .notif-close {
    background: none;
    border: none;
    color: var(--texto-dark);
    cursor: pointer;
    padding: 4px;
    font-size: 16px;
}

@keyframes slideInRight {
    from { transform: translateX(100%); opacity: 0; }
    to { transform: translateX(0); opacity: 1; }
}

@keyframes fadeIn {
    from { opacity: 0; }
    to { opacity: 1; }
}