/* ============================================================
   style.css — TalkMotion Secure Chat
   Design System: Glassmorphism Azul Premium + Dark Mode
   Paleta: Slate 950 + Sky Blue + Glass effects
   ============================================================ */

/* ─── Fonte ─── */
@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700&display=swap');

/* ─── Reset & Tokens ─── */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

:root {
    /* Cores base */
    --bg-dark:        #020617;
    --bg-slate:       #0f172a;
    --bg-card:        rgba(15, 23, 42, 0.8);
    --bg-glass:       rgba(255, 255, 255, 0.04);
    --bg-glass-hover: rgba(255, 255, 255, 0.08);
    
    /* Azul Sky Premium */
    --accent:        #38bdf8;
    --accent-dark:   #0ea5e9;
    --accent-light:  #7dd3fc;
    --accent-glow:   rgba(56, 189, 248, 0.3);
    
    /* Verde de status */
    --online:   #22c55e;
    --offline:  #64748b;
    
    /* Texto */
    --text-primary:   #f1f5f9;
    --text-secondary: #94a3b8;
    --text-muted:     #475569;
    
    /* Bordas */
    --border:       rgba(255, 255, 255, 0.08);
    --border-accent: rgba(56, 189, 248, 0.3);
    
    /* Mensagens */
    --msg-mine:     linear-gradient(135deg, #0ea5e9, #0284c7);
    --msg-theirs:   rgba(30, 41, 59, 0.9);
    
    /* Sombras */
    --shadow-lg: 0 20px 60px rgba(0, 0, 0, 0.5);
    --shadow-sm: 0 4px 16px rgba(0, 0, 0, 0.3);
    
    /* Transições */
    --transition: all 0.2s cubic-bezier(0.16, 1, 0.3, 1);
    
    /* Cores Sociais */
    --whatsapp: #25d366;
    --facebook: #1877f2;
    --twitter:  #1da1f2;
    
    /* Tamanhos mobile */
    --header-h: 64px;
    --input-h: 64px;
}

/* Rodapé Estilo Premium 4U.IA.BR */
.footer-clean { position: relative; padding: 2rem 0; color: #4b5563; }
.footer-link-group { display: flex; align-items: center; justify-content: center; gap: 1rem; margin-top: 0.5rem; font-size: 0.65rem; text-transform: uppercase; letter-spacing: 0.1em; font-weight: 500; }
.footer-dot { width: 3px; height: 3px; border-radius: 50%; background: rgba(16, 185, 129, 0.2); }
.footer-a { transition: all 0.2s; text-decoration: none; color: inherit; }
.footer-a:hover { color: #10b981; opacity: 1; }

/* ─── Base ─── */
html, body {
    height: 100%;
    font-family: 'Inter', system-ui, -apple-system, sans-serif;
    background: var(--bg-dark);
    color: var(--text-primary);
    overflow: hidden;
    -webkit-font-smoothing: antialiased;
}

/* ─── Background animado ─── */
body::before {
    content: '';
    position: fixed;
    inset: 0;
    background: 
        radial-gradient(ellipse 80% 50% at 50% -20%, rgba(56, 189, 248, 0.12), transparent),
        radial-gradient(ellipse 60% 40% at 80% 80%, rgba(14, 165, 233, 0.06), transparent);
    pointer-events: none;
    z-index: 0;
}

/* ─── Layout Principal (Chat) ─── */
.app-layout {
    display: flex;
    height: 100vh;
    position: relative;
    z-index: 1;
}

/* ─── SIDEBAR ─── */
#sidebar {
    width: 340px;
    min-width: 280px;
    max-width: 340px;
    display: flex;
    flex-direction: column;
    background: var(--bg-glass);
    border-right: 1px solid var(--border);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    transition: var(--transition);
}

/* Header da sidebar */
.sidebar-header {
    padding: 16px 20px;
    border-bottom: 1px solid var(--border);
    background: rgba(255,255,255,0.02);
}

.sidebar-top {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 12px;
}

.app-logo {
    display: flex;
    align-items: center;
    gap: 10px;
}

.app-logo-icon {
    width: 36px;
    height: 36px;
    background: linear-gradient(135deg, var(--accent), var(--accent-dark));
    border-radius: 10px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 18px;
    box-shadow: 0 0 20px var(--accent-glow);
}

.app-title {
    font-size: 17px;
    font-weight: 700;
    color: var(--text-primary);
    letter-spacing: -0.3px;
}

.app-subtitle {
    font-size: 11px;
    color: var(--accent);
    font-weight: 500;
}

.sidebar-actions {
    display: flex;
    gap: 6px;
}

/* Barra de busca */
.search-bar {
    position: relative;
}

.search-input {
    width: 100%;
    padding: 10px 16px 10px 40px;
    background: var(--bg-glass);
    border: 1px solid var(--border);
    border-radius: 12px;
    color: var(--text-primary);
    font-size: 14px;
    font-family: inherit;
    outline: none;
    transition: var(--transition);
}

.search-input::placeholder { color: var(--text-muted); }
.search-input:focus {
    border-color: var(--border-accent);
    background: rgba(255,255,255,0.06);
    box-shadow: 0 0 0 3px rgba(56, 189, 248, 0.1);
}

.search-icon {
    position: absolute;
    left: 14px;
    top: 50%;
    transform: translateY(-50%);
    color: var(--text-muted);
    font-size: 16px;
    pointer-events: none;
}

/* Lista de conversas */
#conversation-list {
    flex: 1;
    overflow-y: auto;
    padding: 8px;
    scrollbar-width: thin;
    scrollbar-color: var(--border) transparent;
}

#conversation-list::-webkit-scrollbar { width: 4px; }
#conversation-list::-webkit-scrollbar-thumb { background: var(--border); border-radius: 4px; }

/* Item de conversa */
.conv-item {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 12px;
    border-radius: 12px;
    cursor: pointer;
    transition: var(--transition);
    border: 1px solid transparent;
}

.conv-item:hover {
    background: var(--bg-glass-hover);
    border-color: var(--border);
}

.conv-item.active {
    background: rgba(56, 189, 248, 0.1);
    border-color: rgba(56, 189, 248, 0.2);
}

.conv-avatar {
    width: 48px;
    height: 48px;
    border-radius: 50%;
    background: linear-gradient(135deg, var(--accent), #7c3aed);
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 700;
    font-size: 18px;
    flex-shrink: 0;
    position: relative;
    overflow: hidden;         /* necessário para background-image circular */
    background-size: cover;
    background-position: center;
}

/* Avatar próprio — ícone de câmera ao hover */
.user-avatar {
    overflow: hidden;
    background-size: cover;
    background-position: center;
    position: relative;
}

.user-avatar::after {
    content: '📷';
    position: absolute;
    inset: 0;
    display: flex;
    align-items: center;
    justify-content: center;
    background: rgba(0,0,0,0.55);
    font-size: 18px;
    opacity: 0;
    transition: opacity 0.2s;
    border-radius: 50%;
}

.user-avatar:hover::after {
    opacity: 1;
}


.conv-info { flex: 1; min-width: 0; }

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

.conv-name {
    font-size: 15px;
    font-weight: 600;
    color: var(--text-primary);
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.conv-time {
    font-size: 12px;
    color: var(--text-muted);
    flex-shrink: 0;
}

.conv-preview {
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.conv-last {
    font-size: 13px;
    color: var(--text-secondary);
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.unread-badge {
    background: var(--accent);
    color: var(--bg-dark);
    border-radius: 12px;
    padding: 2px 8px;
    font-size: 11px;
    font-weight: 700;
    flex-shrink: 0;
    min-width: 20px;
    text-align: center;
}

/* Empty state de conversas */
.empty-conversations {
    text-align: center;
    padding: 60px 20px;
    color: var(--text-secondary);
}

.empty-conversations .empty-icon {
    font-size: 48px;
    margin-bottom: 12px;
    opacity: 0.6;
}

.empty-conversations p { font-size: 15px; font-weight: 500; }
.empty-conversations .sub { font-size: 13px; color: var(--text-muted); margin-top: 6px; }

/* Footer sidebar */
.sidebar-footer {
    padding: 12px;
    border-top: 1px solid var(--border);
    background: rgba(255,255,255,0.02);
}

.user-profile {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 10px;
    border-radius: 10px;
    cursor: default;
}

.user-avatar {
    width: 36px;
    height: 36px;
    border-radius: 50%;
    background: linear-gradient(135deg, var(--accent-dark), #7c3aed);
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 700;
    font-size: 16px;
    flex-shrink: 0;
}

.user-info { flex: 1; min-width: 0; }
.user-name  { font-size: 14px; font-weight: 600; }
.user-key   { font-size: 11px; color: var(--accent); font-family: monospace; }

/* ─── ÁREA DO CHAT ─── */
#chat-area-wrapper {
    flex: 1;
    display: flex;
    flex-direction: column;
    min-width: 0;
    overflow: hidden;
}

#chat-area {
    flex: 1;
    display: flex;
    flex-direction: column;
    min-height: 0;
}

/* Header do chat */
.chat-header {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 12px 20px;
    border-bottom: 1px solid var(--border);
    background: var(--bg-glass);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    height: var(--header-h);
    flex-shrink: 0;
}

.back-btn {
    display: none;
    width: 36px;
    height: 36px;
    border-radius: 10px;
    border: 1px solid var(--border);
    background: var(--bg-glass);
    color: var(--text-primary);
    cursor: pointer;
    font-size: 20px;
    align-items: center;
    justify-content: center;
    transition: var(--transition);
}

.back-btn:hover { background: var(--bg-glass-hover); }

.chat-contact-info {
    display: flex;
    align-items: center;
    gap: 12px;
    flex: 1;
}

.chat-avatar {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    background: linear-gradient(135deg, var(--accent), #7c3aed);
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 700;
    font-size: 18px;
    flex-shrink: 0;
    overflow: hidden;
    background-size: cover;
    background-position: center;
}

.chat-contact-name {
    font-size: 16px;
    font-weight: 600;
}

.chat-fingerprint {
    font-size: 11px;
    color: var(--accent);
    font-family: 'Courier New', monospace;
    cursor: help;
}

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

/* Área de mensagens */
.messages-area {
    flex: 1;
    overflow-y: auto;
    padding: 20px 16px;
    display: flex;
    flex-direction: column;
    gap: 6px;
    scrollbar-width: thin;
    scrollbar-color: var(--border) transparent;
}

.messages-area::-webkit-scrollbar { width: 4px; }
.messages-area::-webkit-scrollbar-thumb { background: var(--border); border-radius: 4px; }

/* Aviso E2EE */
.e2ee-notice {
    text-align: center;
    padding: 8px 16px;
    margin-bottom: 8px;
    background: rgba(56, 189, 248, 0.06);
    border: 1px solid rgba(56, 189, 248, 0.15);
    border-radius: 12px;
    font-size: 12px;
    color: var(--accent);
}

/* ─── MENSAGENS ─── */
.msg-wrapper {
    display: flex;
    flex-direction: column;
    max-width: 70%;
    animation: msgAppear 0.2s ease;
}

@keyframes msgAppear {
    from { opacity: 0; transform: translateY(8px); }
    to   { opacity: 1; transform: translateY(0); }
}

.msg-wrapper.mine {
    align-self: flex-end;
    align-items: flex-end;
}

.msg-wrapper.theirs {
    align-self: flex-start;
    padding-left: 44px; /* espaço para o avatar */
    position: relative;
}

.msg-wrapper.theirs .msg-sender-avatar {
    position: absolute;
    left: 0;
    top: 4px;
    width: 34px;
    height: 34px;
    border-radius: 50%;
    background: linear-gradient(135deg, #475569, #1e293b);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 14px;
    font-weight: 700;
    overflow: hidden;
    background-size: cover;
    background-position: center;
}

.msg-sender {
    font-size: 12px;
    color: var(--text-muted);
    margin-bottom: 3px;
    padding-left: 4px;
}

.msg-bubble {
    padding: 10px 14px;
    border-radius: 18px;
    position: relative;
    max-width: 100%;
    word-break: break-word;
}

.mine .msg-bubble {
    background: var(--msg-mine);
    border-bottom-right-radius: 4px;
    box-shadow: 0 2px 12px rgba(14, 165, 233, 0.3);
}

.theirs .msg-bubble {
    background: var(--msg-theirs);
    border-bottom-left-radius: 4px;
    border: 1px solid var(--border);
}

.msg-bubble.e2ee-error {
    background: rgba(239, 68, 68, 0.1);
    border: 1px solid rgba(239, 68, 68, 0.4);
    color: #fca5a5;
}

.msg-bubble.e2ee-error .msg-text {
    font-size: 13px;
    font-style: italic;
    display: flex;
    align-items: center;
    gap: 8px;
}

.msg-bubble.temporary {
    border: 1px dashed rgba(251, 191, 36, 0.4);
}

.msg-text { font-size: 14px; line-height: 1.5; }
.msg-viewed { color: var(--text-muted); font-style: italic; font-size: 13px; }

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

.msg-time { font-size: 11px; opacity: 0.65; }

/* ── Status de Mensagem (✓ enviado, ✓✓ recebido, ✓✓ verde = lido) ── */
.msg-status {
    display: inline-flex;
    align-items: center;
    font-size: 13px;
    line-height: 1;
}

.tick-one,
.tick-double {
    font-family: Arial, sans-serif;
    font-weight: 700;
    font-size: 13px;
    letter-spacing: -2px;  /* aproxima os dois ✓ */
    transition: color 0.3s ease;
}

.tick-one.gray,
.tick-double.gray {
    color: rgba(255, 255, 255, 0.45);
}

/* Verde igual WhatsApp */
.tick-double.green {
    color: #4ade80;
    text-shadow: 0 0 6px rgba(74, 222, 128, 0.4);
}

.msg-ttl {
    font-size: 11px;
    color: #fbbf24;
    font-variant-numeric: tabular-nums; /* evita pulo na contagem */
    transition: color 0.3s;
}
.msg-ttl.urgent {
    color: #f87171;
    animation: ttl-pulse 0.8s ease-in-out infinite alternate;
}
@keyframes ttl-pulse {
    from { opacity: 1; }
    to   { opacity: 0.4; }
}

/* Imagem na mensagem */
.msg-image-wrap {
    position: relative;
    cursor: pointer;
    border-radius: 12px;
    overflow: hidden;
    max-width: 280px;
}

.msg-image {
    display: block;
    width: 100%;
    max-width: 280px;
    height: auto;
    border-radius: 12px;
    transition: var(--transition);
}

.img-overlay {
    position: absolute;
    inset: 0;
    background: rgba(0,0,0,0.4);
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    transition: var(--transition);
    font-size: 14px;
    font-weight: 600;
    color: white;
    border-radius: 12px;
}

.msg-image-wrap:hover .img-overlay { opacity: 1; }

/* Foto que desaparece */
.msg-disappearing-image {
    background: linear-gradient(135deg, #1e1b4b, #312e81);
    border: 1px solid rgba(139, 92, 246, 0.3);
    border-radius: 14px;
    padding: 20px 24px;
    cursor: pointer;
    text-align: center;
    transition: var(--transition);
}

.msg-disappearing-image:hover {
    background: linear-gradient(135deg, #312e81, #3730a3);
    transform: scale(1.02);
}

.disappearing-badge {
    font-size: 15px;
    font-weight: 600;
    color: #c4b5fd;
    margin-bottom: 6px;
}

.tap-hint { font-size: 12px; color: #8b5cf6; }

/* Arquivo na mensagem */
.msg-file {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 12px 16px;
    background: rgba(255,255,255,0.05);
    border: 1px solid var(--border);
    border-radius: 12px;
    cursor: pointer;
    transition: var(--transition);
    min-width: 200px;
}

.msg-file:hover { background: rgba(255,255,255,0.08); }
.file-icon { font-size: 30px; }
.file-name { font-size: 13px; font-weight: 500; }
.file-size { font-size: 12px; color: var(--text-muted); margin-top: 2px; }
.file-download { margin-left: auto; font-size: 18px; opacity: 0.7; }

/* ─── INPUT DE MENSAGEM ─── */
.message-input-area {
    padding: 16px 20px;
    background: transparent;
    flex-shrink: 0;
    position: relative;
    border-top: 1px solid rgba(255, 255, 255, 0.05);
}

.attachment-options {
    position: absolute;
    bottom: 60px;
    left: 10px;
    background: rgba(30, 41, 59, 0.95);
    backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: 12px;
    padding: 8px;
    display: none;
    flex-direction: column;
    gap: 4px;
    box-shadow: 0 10px 25px -5px rgba(0, 0, 0, 0.3);
    z-index: 1000;
    animation: slideUp 0.2s ease-out;
}

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

.voice-timer {
    font-family: 'Outfit', sans-serif;
    font-size: 14px;
    color: #f87171;
    font-weight: 600;
    margin: 0 8px;
    min-width: 40px;
    text-align: center;
}

.attach-btn {
    display: flex;
    align-items: center;
    padding: 12px 16px;
    background: transparent;
    border: none;
    border-radius: 10px;
    color: var(--text-primary);
    font-size: 14px;
    cursor: pointer;
    transition: var(--transition);
    width: 100%;
    text-align: left;
}

.attach-btn:hover {
    background: rgba(56, 189, 248, 0.1);
}

#btn-voice.attach-btn {
    border: 1px solid rgba(56, 189, 248, 0.3);
    background: rgba(56, 189, 248, 0.05);
}

#btn-voice.attach-btn:hover {
    background: rgba(56, 189, 248, 0.15);
}

.ttl-selector {
    display: flex;
    align-items: center;
    gap: 8px;
    margin-bottom: 10px;
}

.ttl-select {
    padding: 8px 12px;
    background: #1e293b; /* Fundo sólido escuro para contraste */
    border: 1px solid var(--border-accent);
    border-radius: 8px;
    color: #ffffff; /* Texto branco puro para máximo contraste */
    font-size: 13px;
    font-family: inherit;
    cursor: pointer;
    outline: none;
    appearance: none; /* Remove seta nativa para customizar se necessário */
    -webkit-appearance: none;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' fill='none' viewBox='0 0 24 24' stroke='white'%3E%3Cpath stroke-linecap='round' stroke-linejoin='round' stroke-width='2' d='M19 9l-7 7-7-7'%3E%3C/path%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: right 8px center;
    background-size: 14px;
    padding-right: 30px;
}

.ttl-select:focus { 
    border-color: var(--accent);
    box-shadow: 0 0 0 2px var(--accent-glow);
}

.ttl-select option {
    background-color: #0f172a; /* Fundo escuro para a lista */
    color: #ffffff;
}

.input-row {
    display: flex;
    align-items: center;
    gap: 10px;
    background: rgba(255, 255, 255, 0.03);
    border: 1px solid rgba(255, 255, 255, 0.08);
    border-radius: 30px;
    padding: 6px 10px;
    backdrop-filter: blur(15px);
    -webkit-backdrop-filter: blur(15px);
    transition: var(--transition);
}

.input-row:focus-within {
    background: rgba(255, 255, 255, 0.06);
    border-color: rgba(56, 189, 248, 0.3);
    box-shadow: 0 0 20px rgba(56, 189, 248, 0.1);
}

.message-input {
    flex: 1;
    padding: 10px 4px;
    background: transparent;
    border: none;
    color: var(--text-primary);
    font-size: 15px;
    font-family: inherit;
    outline: none;
    resize: none;
    max-height: 120px;
    min-height: 24px;
    line-height: 1.5;
    transition: var(--transition);
    overflow-y: auto;
}

/* Esconder barra lateral mantendo scroll */
.message-input::-webkit-scrollbar {
    display: none;
}
.message-input {
    -ms-overflow-style: none;
    scrollbar-width: none;
}

.message-input::placeholder { color: var(--text-muted); }
.message-input:focus {
    outline: none;
}

.btn-send {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    background: linear-gradient(135deg, #25D366, #128C7E);
    border: none;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
    transition: var(--transition);
    box-shadow: 0 4px 12px rgba(37, 211, 102, 0.3);
}

.btn-send:hover {
    transform: scale(1.05) translateY(-2px);
    box-shadow: 0 6px 20px rgba(37, 211, 102, 0.4);
}

.btn-send svg {
    width: 18px;
    height: 18px;
    color: white;
}

/* Progress bar de upload */
.upload-progress {
    display: flex;
    align-items: center;
    gap: 10px;
    margin-top: 10px;
    padding: 8px;
    background: rgba(56, 189, 248, 0.05);
    border-radius: 8px;
    border: 1px solid rgba(56, 189, 248, 0.2);
}

.progress-bar {
    flex: 1;
    height: 4px;
    background: rgba(255,255,255,0.1);
    border-radius: 4px;
    overflow: hidden;
}

.progress-fill {
    height: 100%;
    background: linear-gradient(90deg, var(--accent), var(--accent-light));
    border-radius: 4px;
    transition: width 0.3s ease;
}

.progress-text { font-size: 12px; color: var(--accent); flex-shrink: 0; }

/* ─── BOTÕES GENÉRICOS ─── */
.btn-icon {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    border: 1px solid rgba(255, 255, 255, 0.1);
    background: rgba(255, 255, 255, 0.05);
    color: var(--text-secondary);
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: var(--transition);
    flex-shrink: 0;
    padding: 0;
    outline: none;
}

.btn-icon svg {
    width: 20px;
    height: 20px;
    display: block;
}

.btn-icon:hover {
    background: var(--bg-glass-hover);
    color: var(--text-primary);
}

.btn-primary {
    padding: 10px 20px;
    background: linear-gradient(135deg, var(--accent), var(--accent-dark));
    border: none;
    border-radius: 10px;
    color: white;
    font-size: 14px;
    font-weight: 600;
    cursor: pointer;
    font-family: inherit;
    transition: var(--transition);
}

.btn-primary:hover { opacity: 0.9; transform: translateY(-1px); }

.btn-secondary {
    padding: 10px 20px;
    background: transparent;
    border: 1px solid var(--border);
    border-radius: 10px;
    color: var(--text-secondary);
    font-size: 14px;
    font-weight: 500;
    cursor: pointer;
    font-family: inherit;
    transition: var(--transition);
}

.btn-secondary:hover { background: var(--bg-glass-hover); color: var(--text-primary); }

.btn-danger {
    padding: 10px 20px;
    background: transparent;
    border: 1px solid rgba(239, 68, 68, 0.4);
    border-radius: 10px;
    color: #f87171;
    font-size: 14px;
    font-weight: 500;
    cursor: pointer;
    font-family: inherit;
    transition: var(--transition);
}

.btn-danger:hover { background: rgba(239, 68, 68, 0.1); }

/* ─── EMPTY STATE DO CHAT ─── */
.empty-chat {
    flex: 1;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: 24px;
    text-align: center;
}

@media (max-width: 768px) {
    .empty-chat img {
        width: 80px !important;
        height: 80px !important;
        margin-bottom: 16px !important;
    }
    .empty-chat h2 { font-size: 22px !important; }
}

.empty-logo {
    font-size: 64px;
    margin-bottom: 20px;
    filter: drop-shadow(0 0 20px rgba(56, 189, 248, 0.4));
}

.empty-chat h2 {
    font-size: 28px;
    font-weight: 700;
    background: linear-gradient(135deg, var(--text-primary), var(--accent));
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
    margin-bottom: 10px;
}

.empty-chat p {
    font-size: 15px;
    color: var(--text-secondary);
    max-width: 320px;
    margin-bottom: 24px;
}

.security-badge {
    display: flex;
    flex-direction: column;
    gap: 8px;
    margin-top: 8px;
}

.security-badge span {
    font-size: 13px;
    color: var(--text-muted);
    background: rgba(255,255,255,0.04);
    border: 1px solid var(--border);
    border-radius: 8px;
    padding: 8px 16px;
}

/* ─── VISUALIZADOR DE IMAGEM ─── */
.image-viewer-overlay {
    position: fixed;
    inset: 0;
    background: rgba(0,0,0,0.95);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 1000;
    animation: fadeIn 0.2s ease;
}

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

.image-viewer-container {
    position: relative;
    max-width: 90vw;
    max-height: 90vh;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 16px;
}

.viewer-close {
    position: absolute;
    top: -48px;
    right: 0;
    width: 40px;
    height: 40px;
    border-radius: 50%;
    background: rgba(255,255,255,0.1);
    border: 1px solid var(--border);
    color: white;
    font-size: 20px;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: var(--transition);
}

.viewer-close:hover { background: rgba(255,255,255,0.2); }

.viewer-image {
    max-width: 90vw;
    max-height: 80vh;
    object-fit: contain;
    border-radius: 12px;
}

.viewer-download {
    padding: 10px 20px;
    background: rgba(255,255,255,0.1);
    border: 1px solid var(--border);
    border-radius: 10px;
    color: white;
    text-decoration: none;
    font-size: 14px;
    transition: var(--transition);
}

.viewer-download:hover { background: rgba(255,255,255,0.2); }

/* ─── MODAIS ─── */
.modal-overlay {
    position: fixed;
    inset: 0;
    background: rgba(0,0,0,0.7);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 500;
    backdrop-filter: blur(4px);
    animation: fadeIn 0.2s ease;
    padding: 20px; /* Padding geral para o overlay */
}

.modal-box {
    background: var(--bg-slate);
    border: 1px solid var(--border);
    border-radius: 20px;
    width: 90%;
    max-width: 440px;
    max-height: 90vh; /* Limita altura do modal na tela */
    display: flex;
    flex-direction: column; /* Necessário para o scroll interno */
    overflow: hidden;
    box-shadow: var(--shadow-lg);
    animation: slideUp 0.25s cubic-bezier(0.16, 1, 0.3, 1);
}

@keyframes slideUp {
    from { opacity: 0; transform: translateY(30px) scale(0.95); }
    to { opacity: 1; transform: translateY(0) scale(1); }
}

.modal-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 20px 24px;
    border-bottom: 1px solid var(--border);
}

.modal-header h3 { font-size: 17px; font-weight: 700; }
.modal-header button {
    width: 32px;
    height: 32px;
    border-radius: 8px;
    border: 1px solid var(--border);
    background: transparent;
    color: var(--text-secondary);
    cursor: pointer;
    font-size: 16px;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: var(--transition);
}
.modal-header button:hover { background: var(--bg-glass-hover); }

.modal-body {
    padding: 24px;
    flex: 1; /* O corpo do modal deve ocupar o espaço restante para permitir o scroll */
    min-height: 0; /* Crítico para o scroll em flexbox */
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 16px;
    overflow-y: auto; /* Habilita scroll interno no corpo do modal */
    scrollbar-width: thin;
}

.modal-footer {
    display: flex;
    gap: 10px;
    justify-content: flex-end;
    padding: 16px 24px;
    border-top: 1px solid var(--border);
}

.contact-detail-avatar {
    width: 72px;
    height: 72px;
    border-radius: 50%;
    background: linear-gradient(135deg, var(--accent), #7c3aed);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 28px;
    font-weight: 700;
}

.fingerprint-display {
    width: 100%;
    background: rgba(56, 189, 248, 0.05);
    border: 1px solid rgba(56, 189, 248, 0.2);
    border-radius: 12px;
    padding: 16px;
    text-align: center;
}

.fingerprint-display label {
    display: block;
    font-size: 12px;
    color: var(--text-muted);
    margin-bottom: 8px;
}

.fingerprint-value {
    font-family: 'Courier New', monospace;
    font-size: 20px;
    font-weight: 700;
    color: var(--accent);
    letter-spacing: 2px;
}

.fingerprint-hint {
    font-size: 11px;
    color: var(--text-muted);
    margin-top: 8px;
}

/* ─── NOTIFICAÇÕES ─── */
#notification-container {
    position: fixed;
    top: 20px;
    right: 20px;
    z-index: 2000;
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.notification {
    padding: 12px 18px;
    border-radius: 12px;
    font-size: 14px;
    font-weight: 500;
    max-width: 320px;
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    box-shadow: var(--shadow-sm);
    animation: slideInRight 0.3s cubic-bezier(0.16, 1, 0.3, 1);
    border: 1px solid transparent;
}

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

.notification-info {
    background: rgba(56, 189, 248, 0.15);
    border-color: rgba(56, 189, 248, 0.3);
    color: var(--accent-light);
}

.notification-success {
    background: rgba(34, 197, 94, 0.15);
    border-color: rgba(34, 197, 94, 0.3);
    color: #86efac;
}

.notification-error {
    background: rgba(239, 68, 68, 0.15);
    border-color: rgba(239, 68, 68, 0.3);
    color: #fca5a5;
}

.notification-message {
    background: rgba(56, 189, 248, 0.12);
    border-color: var(--border-accent);
    color: var(--text-primary);
    cursor: pointer;
}

/* ─── FORMULÁRIOS (Login / Registro) ─── */
.auth-page {
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: 20px;
    gap: 30px;
    position: relative;
    z-index: 1;
}
@media (max-width: 768px) {
    .auth-page {
        justify-content: flex-start;
        padding-top: 40px;
        gap: 20px;
    }
}

.auth-card {
    width: 100%;
    max-width: 420px;
    background: var(--bg-glass);
    border: 1px solid var(--border);
    border-radius: 24px;
    padding: 40px;
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    box-shadow: var(--shadow-lg);
    animation: slideUp 0.4s cubic-bezier(0.16, 1, 0.3, 1);
}

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

.auth-logo-icon {
    width: 72px;
    height: 72px;
    background: linear-gradient(135deg, var(--accent), var(--accent-dark));
    border-radius: 20px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 36px;
    margin: 0 auto 16px;
    box-shadow: 0 0 40px var(--accent-glow);
}

.auth-title {
    font-size: 24px;
    font-weight: 800;
    background: linear-gradient(135deg, var(--text-primary), var(--accent));
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
    margin-bottom: 6px;
}

.auth-subtitle {
    font-size: 14px;
    color: var(--text-secondary);
}

.form-group { margin-bottom: 16px; }

.form-label {
    display: block;
    font-size: 13px;
    font-weight: 500;
    color: var(--text-secondary);
    margin-bottom: 8px;
}

.form-input {
    width: 100%;
    padding: 13px 16px;
    background: var(--bg-glass);
    border: 1px solid var(--border);
    border-radius: 12px;
    color: var(--text-primary);
    font-size: 15px;
    font-family: inherit;
    outline: none;
    transition: var(--transition);
}

.form-input::placeholder { color: var(--text-muted); }

.form-input:focus {
    border-color: var(--border-accent);
    box-shadow: 0 0 0 3px var(--accent-glow);
    background: rgba(255,255,255,0.06);
}

.form-input.error { border-color: rgba(239, 68, 68, 0.5); }

.form-error {
    font-size: 12px;
    color: #f87171;
    margin-top: 6px;
    display: none;
}

.form-error.visible { display: block; }

.btn-submit {
    width: 100%;
    padding: 14px;
    background: linear-gradient(135deg, var(--accent), var(--accent-dark));
    border: none;
    border-radius: 12px;
    color: white;
    font-size: 16px;
    font-weight: 700;
    cursor: pointer;
    font-family: inherit;
    transition: var(--transition);
    margin-top: 8px;
    box-shadow: 0 0 30px var(--accent-glow);
    position: relative;
    overflow: hidden;
}

.btn-submit::before {
    content: '';
    position: absolute;
    inset: 0;
    background: linear-gradient(135deg, transparent, rgba(255,255,255,0.1));
}

.btn-submit:hover {
    transform: translateY(-2px);
    box-shadow: 0 0 40px rgba(56, 189, 248, 0.5);
}

.btn-submit:active { transform: translateY(0); }
.btn-submit:disabled { opacity: 0.6; cursor: not-allowed; transform: none; }

.auth-switch {
    text-align: center;
    margin-top: 20px;
    font-size: 14px;
    color: var(--text-secondary);
}

.auth-switch a {
    color: var(--accent);
    text-decoration: none;
    font-weight: 600;
    transition: var(--transition);
}

.auth-switch a:hover { color: var(--accent-light); }

.security-notice {
    margin-top: 20px;
    padding: 14px;
    background: rgba(56, 189, 248, 0.05);
    border: 1px solid rgba(56, 189, 248, 0.15);
    border-radius: 12px;
    font-size: 12px;
    color: var(--text-muted);
    text-align: center;
    line-height: 1.6;
}

/* Loading spinner */
.spinner {
    width: 20px;
    height: 20px;
    border: 2px solid rgba(255,255,255,0.3);
    border-top-color: white;
    border-radius: 50%;
    animation: spin 0.8s linear infinite;
    display: inline-block;
}

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

/* ─── PAINEL DE ADICIONAR CONTATO ─── */
.add-contact-panel {
    padding: 12px;
    border-bottom: 1px solid var(--border);
    background: rgba(255,255,255,0.02);
}

.search-results {
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    background: var(--bg-slate);
    border: 1px solid var(--border);
    border-radius: 12px;
    overflow: hidden;
    box-shadow: var(--shadow-lg);
    z-index: 100;
    max-height: 300px;
    overflow-y: auto;
}

.search-result-item {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 12px 16px;
    cursor: pointer;
    transition: var(--transition);
    border-bottom: 1px solid var(--border);
}

.search-result-item:last-child { border-bottom: none; }
.search-result-item:hover { background: var(--bg-glass-hover); }

/* ─── FOOTER DO SISTEMA ─── */


.system-footer a { color: var(--accent); text-decoration: none; }

/* ─── RESPONSIVE MOBILE ─── */
@media (max-width: 768px) {

    /* dvh = dynamic viewport height (desconta barra de endereços do browser mobile) */
    html, body {
        height: 100%;
        height: -webkit-fill-available;
    }

    .app-layout {
        height: 100vh;
        height: 100dvh;
        height: -webkit-fill-available;
        overflow: hidden; /* Prevent background scroll */
    }

    #sidebar {
        width: 100% !important;
        max-width: 100% !important;
        min-width: 100% !important;
        background: var(--bg-dark) !important; /* Sombras opacas no mobile para não transparência */
        backdrop-filter: none !important;

        /* flex column garante que footer sempre aparece na base */
        display: flex;
        flex-direction: column;

        /* fixed em vez de absolute evita que barra do navegador corte o footer */
        position: fixed;
        top: 0; left: 0; right: 0; bottom: 0;
        z-index: 50; /* Z-index alto para cobrir tudo */
        height: 100%;
        height: 100dvh;

        /* iOS notch / home indicator */
        padding-bottom: env(safe-area-inset-bottom, 0px);
        padding-top: env(safe-area-inset-top, 0px);
    }

    .sidebar-header { flex-shrink: 0; }

    #conversation-list {
        flex: 1 1 auto;
        overflow-y: auto;
        -webkit-overflow-scrolling: touch;
        min-height: 0; /* crítico para flex+scroll funcionar */
    }

    .sidebar-footer {
        flex-shrink: 0;
        padding-bottom: max(12px, env(safe-area-inset-bottom, 12px));
    }

    #chat-area-wrapper {
        position: fixed;
        top: 0; left: 0; right: 0; bottom: 0;
        z-index: 60; /* Acima da sidebar quando aberto */
        display: flex;
        flex-direction: column;
        height: 100%;
        height: 100dvh;
        padding-bottom: env(safe-area-inset-bottom, 0px);
        background: var(--bg-dark); /* Opaque background */
    }

    .hidden-mobile { display: none !important; }
    .back-btn { display: flex; }
    .msg-wrapper { max-width: 85%; }

    .auth-card {
        padding: 28px 20px;
        border-radius: 20px;
        max-height: calc(100dvh - 40px);
        overflow-y: auto;
    }

    .chat-header { padding: 10px 14px; }

    .message-input-area {
        padding: 10px 12px;
        padding-bottom: max(10px, env(safe-area-inset-bottom, 10px));
    }

    .empty-conversations { padding: 40px 20px; }

    .security-badge span {
        font-size: 12px;
        padding: 6px 12px;
    }
}

@media (max-width: 480px) {
    .msg-image { max-width: 220px; }
    .auth-card { border-radius: 16px; }

    .app-title { font-size: 15px; }
    .app-subtitle { font-size: 10px; }
}

/* ─── RODAPÉ STANDARD ─── */


.footer-credits {
    font-weight: 500;
}

.footer-credits a {
    color: var(--accent);
    text-decoration: none;
}

/* ─── COMPARTILHAMENTO SOCIAL — PREMIUM CARD ─── */
.share-card {
    background: linear-gradient(135deg, rgba(30, 41, 59, 0.7), rgba(15, 23, 42, 0.9));
    border: 1px solid var(--border-accent);
    border-radius: 24px;
    padding: 32px;
    text-align: center;
    max-width: 400px;
    width: 100%;
}

.share-header-icon {
    width: 64px;
    height: 64px;
    margin: 0 auto 20px;
    background: linear-gradient(135deg, var(--accent), var(--accent-dark));
    border-radius: 16px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 32px;
    box-shadow: 0 0 30px var(--accent-glow);
}

.share-card h3 {
    font-size: 20px;
    font-weight: 700;
    margin-bottom: 12px;
    color: var(--text-primary);
}

.share-card p {
    font-size: 14px;
    color: var(--text-secondary);
    margin-bottom: 24px;
}

.copy-link-area {
    display: flex;
    gap: 8px;
    background: rgba(0,0,0,0.2);
    border: 1px solid var(--border);
    border-radius: 12px;
    padding: 4px 4px 4px 12px;
    margin-bottom: 24px;
}

.copy-link-text {
    flex: 1;
    background: transparent;
    border: none;
    color: var(--text-primary);
    font-size: 13px;
    font-family: monospace;
    outline: none;
    line-height: 38px;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.btn-copy {
    background: var(--bg-glass);
    border: 1px solid var(--border);
    color: var(--accent);
    padding: 8px 16px;
    border-radius: 8px;
    font-size: 12px;
    font-weight: 600;
    cursor: pointer;
    transition: var(--transition);
}

.btn-copy:hover {
    background: var(--accent);
    color: #000;
}

.social-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 12px;
}

.social-btn-premium {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 8px;
    padding: 16px 8px;
    border-radius: 16px;
    background: rgba(255,255,255,0.03);
    border: 1px solid var(--border);
    cursor: pointer;
    transition: var(--transition);
}

.social-btn-premium:hover {
    background: rgba(255,255,255,0.08);
    transform: translateY(-4px);
    border-color: var(--accent);
}

.social-btn-premium svg {
    width: 24px;
    height: 24px;
}

.social-btn-premium span {
    font-size: 11px;
    font-weight: 600;
    color: var(--text-secondary);
}

.social-btn-premium.whatsapp:hover svg { fill: #25d366; }
.social-btn-premium.facebook:hover svg { fill: #1877f2; }
.social-btn-premium.twitter:hover { background: #000; }
.btn-social.whatsapp { background: var(--whatsapp); box-shadow: 0 0 15px rgba(37, 211, 102, 0.3); }
.btn-social.facebook { background: var(--facebook); box-shadow: 0 0 15px rgba(24, 119, 242, 0.3); }
.btn-social.twitter  { background: #000; border: 1px solid #333; }

/* ─── MODAIS LEGAIS ─── */
.legal-modal-body {
    max-height: 60vh;
    overflow-y: auto;
    padding: 20px;
    line-height: 1.6;
    color: var(--text-secondary);
    font-size: 14px;
    text-align: left;
}

.legal-modal-body h4 {
    color: var(--text-primary);
    margin: 20px 0 10px;
    font-size: 16px;
}

.legal-modal-body p {
    margin-bottom: 15px;
}

.legal-modal-body ul {
    margin-bottom: 15px;
    padding-left: 20px;
}

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

button, a { -webkit-tap-highlight-color: transparent; }


/* ─── APP LOCK (TELA DE BLOQUEIO) ─── */
#app-lock-overlay {
    position: fixed;
    inset: 0;
    z-index: 9999;
    background: rgba(2, 6, 23, 0.7);
    backdrop-filter: blur(25px);
    -webkit-backdrop-filter: blur(25px);
    display: flex;
    align-items: center;
    justify-content: center;
    animation: lockFadeIn 0.4s cubic-bezier(0.16, 1, 0.3, 1);
    padding: 20px;
}

#app-lock-overlay.unlocking {
    opacity: 0;
    pointer-events: none;
    transition: opacity 0.3s ease;
}

@keyframes lockFadeIn {
    from { opacity: 0; backdrop-filter: blur(0px); }
    to { opacity: 1; backdrop-filter: blur(25px); }
}

.lock-card {
    background: linear-gradient(135deg, rgba(30, 41, 59, 0.9), rgba(15, 23, 42, 0.95));
    border: 1px solid var(--border);
    border-radius: 28px;
    padding: 40px;
    width: 100%;
    max-width: 400px;
    text-align: center;
    box-shadow: 0 25px 50px -12px rgba(0, 0, 0, 0.5), 0 0 40px rgba(56, 189, 248, 0.1);
    transform: translateY(0);
    animation: lockSlideUp 0.5s cubic-bezier(0.16, 1, 0.3, 1);
}

@keyframes lockSlideUp {
    from { transform: translateY(20px); opacity: 0; }
    to { transform: translateY(0); opacity: 1; }
}

.lock-icon {
    width: 72px;
    height: 72px;
    margin: 0 auto 24px;
    filter: drop-shadow(0 0 15px var(--accent-glow));
    display: flex;
    align-items: center;
    justify-content: center;
}

.lock-card h2 {
    font-size: 24px;
    font-weight: 800;
    margin-bottom: 8px;
    background: linear-gradient(to right, #fff, var(--accent));
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
}

.lock-card p {
    color: var(--text-secondary);
    font-size: 15px;
    margin-bottom: 30px;
}

#lock-pin-input {
    width: 100%;
    padding: 16px;
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid var(--border);
    border-radius: 16px;
    color: white;
    font-size: 24px;
    text-align: center;
    letter-spacing: 12px;
    font-family: 'Courier New', Courier, monospace;
    margin-bottom: 20px;
    outline: none;
    transition: var(--transition);
}

#lock-pin-input::placeholder {
    letter-spacing: normal;
    font-family: 'Inter', sans-serif;
    font-size: 15px;
    color: var(--text-muted);
}

#lock-pin-input:focus {
    border-color: var(--accent);
    background: rgba(56, 189, 248, 0.05);
}

.lock-actions {
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.lock-footer {
    margin-top: 30px;
    padding-top: 20px;
    border-top: 1px solid var(--border);
}

.shake {
    animation: shake 0.4s cubic-bezier(.36,.07,.19,.97) both;
}

@keyframes shake {
    10%, 90% { transform: translate3d(-1px, 0, 0); }
    20%, 80% { transform: translate3d(2px, 0, 0); }
    30%, 50%, 70% { transform: translate3d(-4px, 0, 0); }
    40%, 60% { transform: translate3d(4px, 0, 0); }
}

/* ─── COMPONENTES DE CONFIGURAÇÃO ─── */
.settings-group {
    width: 100%;
    margin-bottom: 20px;
    display: flex;
    flex-direction: column;
    gap: 8px;
    align-items: flex-start;
}

.settings-group label {
    font-size: 13px;
    font-weight: 600;
    color: var(--text-secondary);
}

.form-select, .form-input {
    width: 100%;
    padding: 12px 14px;
    background: #1e293b;
    border: 1px solid var(--border);
    border-radius: 10px;
    color: white;
    font-size: 14px;
    font-family: inherit;
    outline: none;
    transition: var(--transition);
}

.form-select:focus, .form-input:focus {
    border-color: var(--accent);
    box-shadow: 0 0 0 3px var(--accent-glow);
}

.switch-item {
    display: flex;
    align-items: center;
    justify-content: space-between;
    width: 100%;
    cursor: pointer;
    background: rgba(255,255,255,0.03);
    padding: 12px 16px;
    border-radius: 12px;
    border: 1px solid var(--border);
    transition: var(--transition);
}

.switch-item:hover {
    background: rgba(255,255,255,0.06);
    border-color: var(--border-accent);
}

.switch-item span {
    font-size: 14px;
    font-weight: 500;
}

.btn-text {
    background: transparent;
    border: none;
    color: var(--text-secondary);
    font-size: 14px;
    padding: 10px 16px;
    cursor: pointer;
    border-radius: 8px;
    transition: var(--transition);
}

.btn-text:hover {
    background: var(--bg-glass-hover);
    color: var(--text-primary);
}

/* ─── Lang Selector (I18n) ─── */
.lang-selector {
    display: flex;
    justify-content: flex-start;
    gap: 12px;
    padding: 0 16px 12px;
    border-bottom: 1px solid var(--border);
    margin-bottom: 12px;
}
.lang-btn {
    background: transparent;
    border: 1px solid transparent;
    border-radius: 6px;
    padding: 2px 6px;
    cursor: pointer;
    font-size: 11px;
    font-weight: 700;
    color: var(--text-secondary);
    transition: var(--transition);
    display: flex;
    align-items: center;
    justify-content: center;
}
.lang-btn:hover {
    color: var(--text-primary);
    background: var(--bg-glass-hover);
}
.lang-btn.active {
    color: var(--accent);
    border-color: rgba(56, 189, 248, 0.2);
    background: rgba(56, 189, 248, 0.05);
}
.lang-btn[data-lang="auto"] {
    font-size: 14px;
}


/* ─── Voice Hub ─── */
.btn-voice {
    color: var(--text-secondary);
}
.btn-voice:hover {
    color: var(--accent);
    background: rgba(56, 189, 248, 0.1);
}
.btn-voice.recording-pulse {
    color: #f87171 !important;
    background: rgba(248, 113, 113, 0.15) !important;
}

/* ─── AI Button & Effects ─── */
.btn-ai-wizard {
    background: linear-gradient(135deg, #a855f7, #6366f1);
    color: white;
    border: none;
    border-radius: 50%;
    width: 40px;
    height: 40px;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
    transition: var(--transition);
    padding: 0;
    box-shadow: 0 4px 12px rgba(168, 85, 247, 0.2);
}

.btn-ai-wizard:hover {
    transform: translateY(-1px);
    box-shadow: 0 0 20px rgba(168, 85, 247, 0.4);
    filter: brightness(1.1);
}

.btn-ai-wizard svg {
    width: 20px;
    height: 20px;
}

.btn-ai {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    background: rgba(168, 85, 247, 0.1);
    border: 1px solid rgba(168, 85, 247, 0.2);
    border-radius: 12px;
    color: #a855f7;
    padding: 6px 12px;
    font-size: 13px;
    font-weight: 500;
    cursor: pointer;
    transition: var(--transition);
}

.btn-ai:hover {
    background: rgba(168, 85, 247, 0.2);
    transform: translateY(-1px);
}
.ai-loading {
    animation: pulse-ai 1.5s infinite ease-in-out;
}
@keyframes pulse-ai {
    0%, 100% { opacity: 1; filter: brightness(1); }
    50% { opacity: 0.7; filter: brightness(1.5); }
}

.recording-pulse {
    animation: pulse-red 1.2s infinite ease-in-out;
}
@keyframes pulse-red {
    0%, 100% { transform: scale(1); opacity: 1; }
    50% { transform: scale(1.2); opacity: 0.7; }
}

.msg-ai-translate {
    background: rgba(168, 85, 247, 0.1);
    border: 1px solid rgba(168, 85, 247, 0.2);
    border-radius: 6px;
    margin-top: 8px;
    padding: 8px 10px;
    font-size: 13px;
    color: var(--text-primary);
    position: relative;
}
.msg-ai-translate::before {
    content: attr(data-label);
    display: block;
    font-size: 10px;
    font-weight: 700;
    text-transform: uppercase;
    color: #a855f7;
    margin-bottom: 4px;
}

/* ─── Recharge Modal Styles ─── */
.btn-recharge-item {
    width: 100%;
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 16px 20px;
    background: rgba(255,255,255,0.03);
    border: 1px solid var(--border);
    border-radius: 16px;
    cursor: pointer;
    transition: var(--transition);
    text-align: left;
}

.btn-recharge-item:hover {
    background: rgba(56, 189, 248, 0.05);
    border-color: var(--accent);
    transform: translateY(-2px);
}

.recharge-info {
    display: flex;
    flex-direction: column;
    gap: 4px;
}

.recharge-price {
    font-size: 18px;
    font-weight: 800;
    color: var(--text-primary);
}

.recharge-benefit {
    font-size: 11px;
    color: var(--text-muted);
    font-weight: 500;
}

.recharge-tag {
    font-size: 10px;
    font-weight: 800;
    text-transform: uppercase;
    background: rgba(255,255,255,0.05);
    color: var(--text-secondary);
    padding: 4px 10px;
    border-radius: 20px;
    letter-spacing: 0.5px;
}

.recharge-tag.popular {
    background: var(--accent);
    color: #000;
    box-shadow: 0 0 15px var(--accent-glow);
}