:root {
    --primary: #6D28D9;
    --primary-light: #F3E8FF;
    --secondary: #10B981;
    --bg-color: #F8FAFC;
    --surface: #FFFFFF;
    --text-main: #0F172A;
    --text-muted: #64748B;
    --border: #E2E8F0;
    --shadow-sm: 0 1px 3px rgba(0,0,0,0.1);
    --shadow-md: 0 4px 6px -1px rgba(0,0,0,0.05), 0 2px 4px -1px rgba(0,0,0,0.03);
    --shadow-lg: 0 10px 15px -3px rgba(0,0,0,0.05), 0 4px 6px -2px rgba(0,0,0,0.025);
    --radius: 12px;
}

* { margin: 0; padding: 0; box-sizing: border-box; font-family: 'Inter', sans-serif; }
body { background: var(--bg-color); color: var(--text-main); font-size: 15px; }

/* Layout */
.app-container { display: flex; height: 100vh; overflow: hidden; }

/* Sidebar */
.sidebar {
    width: 260px;
    background: var(--surface);
    border-right: 1px solid var(--border);
    display: flex;
    flex-direction: column;
    z-index: 10;
    transition: margin-left 0.3s cubic-bezier(0.4, 0, 0.2, 1), left 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

@media (min-width: 901px) {
    body.sidebar-collapsed .sidebar {
        margin-left: -260px;
    }
}
.brand {
    padding: 24px;
    font-size: 20px;
    font-weight: 700;
    color: var(--primary);
    display: flex;
    align-items: center;
    gap: 12px;
    border-bottom: 1px solid var(--primary-light);
}
.nav-menu { flex: 1; padding: 24px 16px; display: flex; flex-direction: column; gap: 8px; }
.nav-item {
    display: flex; align-items: center; gap: 12px;
    padding: 12px 16px;
    text-decoration: none;
    color: var(--text-muted);
    border-radius: var(--radius);
    font-weight: 500;
    transition: all 0.2s ease;
}
.nav-item:hover, .nav-item.active {
    background: var(--primary-light);
    color: var(--primary);
}

.sidebar-footer { padding: 24px; border-top: 1px solid var(--border); }
.user-info { display: flex; align-items: center; gap: 12px; font-weight: 600; font-size: 14px;}
.avatar { background: var(--primary); color: white; width: 40px; height: 40px; border-radius: 50%; display: flex; align-items: center; justify-content: center; font-size: 12px; font-weight: bold;}

/* Main */
.main-content { flex: 1; display: flex; flex-direction: column; height: 100%; overflow-y: auto;}

/* Topbar */
.topbar {
    background: rgba(255, 255, 255, 0.85);
    backdrop-filter: blur(12px);
    height: 72px; padding: 0 32px;
    flex-shrink: 0;
    min-height: 72px;
    display: flex; justify-content: space-between; align-items: center;
    border-bottom: 1px solid var(--border);
    position: sticky; top: 0; z-index: 5;
}
.search-bar {
    display: flex; align-items: center; gap: 8px;
    background: var(--bg-color);
    padding: 10px 16px; border-radius: 24px; width: 300px;
}
.search-bar input { border: none; background: transparent; outline: none; width: 100%; color: var(--text-main); font-size: 14px;}
.search-bar i { color: var(--text-muted); }
.topbar-actions { display: flex; align-items: center; gap: 16px; }

/* Buttons */
.btn-icon { background: none; border: none; font-size: 20px; color: var(--text-muted); cursor: pointer; position: relative;}
.badge { position: absolute; top: -5px; right: -5px; background: #EF4444; color: white; font-size: 10px; padding: 2px 6px; border-radius: 10px; font-weight: bold; border: 2px solid white;}
.btn-primary { 
    background: var(--primary); color: white; border: none; 
    padding: 10px 20px; border-radius: 8px; font-weight: 600; cursor: pointer;
    display: flex; align-items: center; gap: 8px; transition: transform 0.2s, background 0.2s;
    box-shadow: 0 4px 6px rgba(109, 40, 217, 0.25);
}
.btn-primary:hover { background: #5B21B6; transform: translateY(-1px); }
.btn-whatsapp {
    background: #25D366; color: white; border: none; padding: 10px 18px;
    border-radius: 20px; font-weight: 600; cursor: pointer; display: flex; align-items: center; gap: 8px;
    transition: all 0.2s ease; font-size: 14px;
}
.btn-whatsapp:hover { background: #128C7E; transform: translateY(-1px); box-shadow: 0 4px 10px rgba(37, 211, 102, 0.3);}

/* Pages */
.page-container { padding: 32px; max-width: 1440px; margin: 0 auto; width: 100%;}
.page { display: none; animation: fadeIn 0.4s ease; }
.page.active { display: block; }
#page-funnel.active { display: flex; flex-direction: column; }
@keyframes fadeIn { from { opacity: 0; transform: translateY(10px); } to { opacity: 1; transform: translateY(0); } }
@keyframes pulse { from { opacity: 1; transform: scale(1); } to { opacity: 0.6; transform: scale(1.2); } }

.page-header { margin-bottom: 32px; }
.page-header h2 { font-size: 28px; margin-bottom: 8px; color: var(--text-main); font-weight: 700;}
.page-header p { color: var(--text-muted); font-size: 15px;}

/* Stats Grid */
.stats-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; margin-bottom: 32px; }
.charts-grid { display: grid; grid-template-columns: 2fr 1fr; gap: 24px; margin-bottom: 32px; }
.chart-card { background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius); padding: 24px; box-shadow: var(--shadow-sm); }
.stat-card {
    background: var(--surface); padding: 24px; border-radius: var(--radius);
    box-shadow: var(--shadow-sm); display: flex; align-items: center; gap: 20px;
    border: 1px solid var(--border); transition: transform 0.2s ease;
}
.stat-card:hover { transform: translateY(-2px); box-shadow: var(--shadow-md); }
.stat-icon { width: 56px; height: 56px; border-radius: 16px; display: flex; align-items: center; justify-content: center; font-size: 24px;}
.stat-info h3 { font-size: 14px; color: var(--text-muted); margin-bottom: 4px; font-weight: 600;}
.stat-value { font-size: 26px; font-weight: 700; color: var(--text-main); }

/* Custom Cards */
.action-list-card, .form-card, .table-card {
    background: var(--surface); border-radius: var(--radius);
    box-shadow: var(--shadow-md); border: 1px solid var(--border); overflow-x: auto;
}
.card-header { padding: 20px 24px; border-bottom: 1px solid var(--border); display: flex; justify-content: space-between; align-items: center; }
.card-header h3 { font-size: 16px; font-weight: 600;}

/* Filters */
.filter-pills { display: flex; gap: 8px; }
.pill { padding: 6px 14px; background: var(--bg-color); border-radius: 16px; font-size: 13px; font-weight: 600; cursor: pointer; color: var(--text-muted); transition: 0.2s;}
.pill:hover { background: #E2E8F0; }
.pill.active { background: var(--primary); color: white; }

/* Action List */
.action-list { display: flex; flex-direction: column; }
.action-item {
    display: flex; justify-content: space-between; align-items: center;
    padding: 20px 24px; border-bottom: 1px solid var(--border);
    transition: background 0.2s;
}
.action-item:hover { background: #F8FAFC; }
.action-item:last-child { border-bottom: none; }
.client-info { display: flex; flex-direction: column; gap: 6px; }
.c-name { font-weight: 600; color: var(--text-main); font-size: 16px;}
.c-meta { font-size: 14px; color: var(--text-muted); }
.c-tag { 
    display: inline-block; padding: 4px 10px; border-radius: 6px; font-size: 12px; font-weight: 600; margin-left: 12px;
}
.tag-thanks { background: #DEF7EC; color: #03543F; }
.tag-restock { background: #FEF3C7; color: #92400E; }
.tag-dormant { background: #FEE2E2; color: #991B1B; }
.tag-lost { background: #F1F5F9; color: #475569; }
.tag-promo { background: #F3E8FF; color: #6D28D9; }

/* Forms */
.form-card { padding: 32px; }
.form-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 24px; margin-bottom: 32px; }
.form-group { display: flex; flex-direction: column; gap: 8px; }
.form-group label { font-weight: 600; color: var(--text-main); font-size: 14px;}
.form-group input { padding: 14px 16px; border: 1px solid var(--border); border-radius: 8px; outline: none; transition: 0.2s; font-size: 15px;}
.form-group input:focus { border-color: var(--primary); box-shadow: 0 0 0 4px var(--primary-light); }

/* Table */
.data-table { width: 100%; border-collapse: collapse; }
.data-table th, .data-table td { padding: 18px 24px; text-align: left; border-bottom: 1px solid var(--border); }
.data-table th { background: #F8FAFC; font-weight: 600; color: var(--text-muted); font-size: 13px; text-transform: uppercase; letter-spacing: 0.05em;}
.data-table tbody tr { transition: background 0.2s; }
.data-table tbody tr:hover { background: #F8FAFC; }

.empty-state { padding: 64px 32px; text-align: center; color: var(--text-muted); }
.empty-state i { font-size: 48px; margin-bottom: 16px; color: #CBD5E1; }
.empty-state p { font-size: 16px;}

.toast {
    position: fixed; bottom: -100px; right: 32px; background: #10B981; color: white;
    padding: 16px 24px; border-radius: 8px; box-shadow: 0 10px 25px rgba(16, 185, 129, 0.4); font-weight: 600;
    transition: bottom 0.4s cubic-bezier(0.68, -0.55, 0.265, 1.55); z-index: 1000;
    display: flex; align-items: center; gap: 12px;
}
.toast i { font-size: 20px;}
.toast.show { bottom: 32px; }

/* Autocomplete */
.autocomplete-suggestions {
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: 8px;
    box-shadow: var(--shadow-md);
    max-height: 200px;
    overflow-y: auto;
    z-index: 1000;
    display: none;
    margin-top: 4px;
}
.autocomplete-suggestions.show {
    display: block;
}
.suggestion-item {
    padding: 12px 16px;
    cursor: pointer;
    transition: background 0.2s;
    display: flex;
    flex-direction: column;
    gap: 4px;
    border-bottom: 1px solid var(--border);
}
.suggestion-item:last-child {
    border-bottom: none;
}
.suggestion-item:hover {
    background: var(--primary-light);
}
.suggestion-name {
    font-weight: 600;
    color: var(--text-main);
    font-size: 14px;
}
.suggestion-phone {
    font-size: 12px;
    color: var(--text-muted);
}

/* Login Overlay */
.login-overlay {
    position: fixed; top: 0; left: 0; width: 100vw; height: 100vh;
    background: var(--bg-color);
    z-index: 10000;
    display: none; align-items: center; justify-content: center;
}
.login-overlay.active { display: flex; animation: fadeIn 0.4s ease; }
.login-card {
    background: var(--surface); padding: 48px; border-radius: 20px;
    box-shadow: var(--shadow-lg); width: 100%; max-width: 420px;
    border: 1px solid var(--border);
}
.login-card h2 { font-size: 24px; color: var(--text-main); margin-bottom: 8px; text-align: center; font-weight: 700;}
.login-card p { color: var(--text-muted); text-align: center; margin-bottom: 32px; font-size: 15px;}

/* WhatsApp Preview */
.promo-layout-grid { display: grid; grid-template-columns: 1fr; gap: 24px; align-items: start; }
@media (min-width: 1024px) { .promo-layout-grid { grid-template-columns: 1fr 340px; } }
.whatsapp-preview-container { position: sticky; top: 90px; width: 100%; max-width: 340px; margin: 0 auto; display: none; }
@media (min-width: 1024px) { .whatsapp-preview-container { display: block; } }
.smartphone {
    background: #E5DBD5;
    border: 10px solid #FFFFFF;
    border-radius: 36px;
    box-shadow: 0 20px 40px rgba(0,0,0,0.1), 0 0 0 1px #E2E8F0;
    height: 620px;
    position: relative;
    overflow: hidden;
    display: flex;
    flex-direction: column;
}
.smartphone:before {
    content: ''; position: absolute; top: 0; left: 50%; transform: translateX(-50%);
    width: 40%; height: 24px; background: #FFFFFF;
    border-bottom-left-radius: 16px; border-bottom-right-radius: 16px; z-index: 10;
}
.wa-header {
    background: #008069; color: white; padding: 36px 16px 12px 16px;
    display: flex; align-items: center; gap: 12px; z-index: 5;
}
.wa-header-avatar {
    width: 36px; height: 36px; background: #DFE5E7; border-radius: 50%;
    display: flex; justify-content: center; align-items: center; color: #94A3B8; font-size: 18px;
}
.wa-header-info h4 { font-size: 15px; font-weight: 600; line-height: 1.2; }
.wa-header-info p { font-size: 12px; opacity: 0.8; }
.wa-chat-area {
    flex: 1; padding: 16px; overflow-y: auto;
    background-image: url('https://user-images.githubusercontent.com/15075759/28719144-86dc0f70-73b1-11e7-911d-60d70fcded21.png');
    background-size: cover; display: flex; flex-direction: column; gap: 8px;
}
.wa-bubble {
    border-radius: 7.5px; padding: 6px 7px 8px 9px;
    max-width: 75%; box-shadow: 0 1px 0.5px rgba(11,20,26,.13);
    position: relative; font-size: 14.2px; color: #111B21; line-height: 19px; word-break: break-word; white-space: pre-wrap; margin-bottom: 2px;
}
.wa-bubble-agent {
    background: #D9FDD3; align-self: flex-end; border-top-right-radius: 0;
}
.wa-bubble-agent:after {
    content: ''; position: absolute; top: 0; right: -8px;
    width: 0; height: 0; border-left: 10px solid #D9FDD3; border-bottom: 10px solid transparent;
}
.wa-bubble-client {
    background: #FFFFFF; align-self: flex-start; border-top-left-radius: 0;
}
.wa-bubble-client:before {
    content: ''; position: absolute; top: 0; left: -8px;
    width: 0; height: 0; border-right: 10px solid #FFFFFF; border-bottom: 10px solid transparent;
}
.wa-bubble-img {
    width: 100%; border-radius: 6px; margin-bottom: 6px; display: none; max-height: 200px; object-fit: cover;
}
.wa-bubble-time {
    font-size: 11px; color: #667781;
    float: right; position: relative; bottom: -4px; margin-left: 14px;
    display: inline-flex; align-items: center; gap: 4px;
}
.wa-bubble-time i { color: #53BDEB; }
.wa-footer {
    background: #F0F2F5; padding: 12px; display: flex; align-items: center; gap: 12px; z-index: 5;
}
.wa-input-mock {
    flex: 1; background: white; padding: 10px 16px; border-radius: 20px;
    color: #8BA1AD; font-size: 14px;
}

/* Kanban Board */
.kanban-board {
    display: flex;
    gap: 16px;
    overflow-x: auto;
    flex: 1;
    padding-bottom: 16px;
    align-items: flex-start;
}
.kanban-column {
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    min-width: 320px;
    max-width: 320px;
    display: flex;
    flex-direction: column;
    height: 100%;
    max-height: 100%;
}
.kanban-header {
    padding: 16px;
    border-bottom: 1px solid var(--border);
    display: flex;
    justify-content: space-between;
    align-items: center;
    background: #F8FAFC;
    border-top-left-radius: var(--radius);
    border-top-right-radius: var(--radius);
}
.kanban-header h3 {
    font-size: 14px;
    font-weight: 600;
    margin: 0;
    display: flex;
    align-items: center;
    gap: 8px;
}
.k-count {
    background: var(--border);
    color: var(--text-muted);
    font-size: 12px;
    padding: 2px 8px;
    border-radius: 12px;
    font-weight: bold;
}
.kanban-cards {
    padding: 12px;
    flex: 1;
    overflow-y: auto;
    display: flex;
    flex-direction: column;
    gap: 12px;
    min-height: 150px; /* target area for empty columns */
}
.k-card {
    background: white;
    border: 1px solid var(--border);
    border-radius: 8px;
    padding: 16px;
    box-shadow: 0 1px 2px rgba(0,0,0,0.05);
    cursor: pointer;
    transition: transform 0.2s, box-shadow 0.2s;
    user-select: none;
}
.k-card:active {
    cursor: grabbing;
}
.k-card:hover {
    box-shadow: 0 4px 6px -1px rgba(0,0,0,0.1);
    transform: translateY(-2px);
}
.k-card-selected {
    border-color: var(--primary);
    background-color: var(--primary-light);
    box-shadow: 0 0 0 2px var(--primary-light);
}
.k-card-title {
    font-weight: 600;
    color: var(--text-main);
    font-size: 14px;
    margin-bottom: 4px;
}
.k-card-meta {
    font-size: 12px;
    color: var(--text-muted);
    display: flex;
    justify-content: space-between;
    align-items: center;
}
.k-card-value {
    color: #10B981;
    font-weight: bold;
}
.k-card-tag {
    font-size: 11px;
    padding: 2px 6px;
    border-radius: 4px;
    background: #FEE2E2;
    color: #991B1B;
    font-weight: 600;
}
.sortable-ghost {
    opacity: 0.4;
    background: #E2E8F0;
}

/* Responsividade Mobile Correta (Fim do Arquivo) */
@media (max-width: 900px) {
    .app-container { position: relative; }
    
    .sidebar {
        position: absolute; left: -260px; top: 0; bottom: 0;
        transition: left 0.3s cubic-bezier(0.4, 0, 0.2, 1);
        box-shadow: var(--shadow-lg); z-index: 20;
    }
    body.sidebar-open .sidebar { left: 0; }
    
    .topbar { padding: 0 16px; }
    .mobile-menu-toggle { display: block !important; margin-right: 12px; }
    .search-bar { width: auto; flex: 1; margin-right: 16px; }
    
    .sidebar-overlay {
        display: none; position: fixed;
        top: 0; left: 0; right: 0; bottom: 0;
        background: rgba(0,0,0,0.5); z-index: 15;
    }
    body.sidebar-open .sidebar-overlay { display: block; }

    /* Forçar Grids para 1 coluna */
    .stats-grid, .charts-grid, .form-grid, .promo-layout-grid {
        grid-template-columns: 1fr !important;
    }
    .chart-card, .form-group {
        grid-column: 1 / -1 !important; /* Fix charts/forms overflow */
    }
    
    .page-container { padding: 16px; }
    
    /* Headers & Buttons */
    .page-header { 
        flex-direction: column !important; 
        align-items: stretch !important; 
        gap: 16px; 
    }
    .page-header > div:last-child {
        flex-direction: column !important;
        width: 100%;
    }
    .page-header button {
        width: 100%;
        justify-content: center;
    }

    /* Filters Bar */
    .filters-bar { 
        flex-direction: column !important; 
        align-items: stretch !important; 
        gap: 12px !important;
    }
    .filters-bar > div { 
        width: 100% !important; 
        flex-wrap: nowrap !important;
        justify-content: space-between;
    }
    .filters-bar select, .filters-bar input { 
        width: 100% !important; 
    }
    .filters-bar input[type="date"], .filters-bar input[type="number"] {
        flex: 1;
        min-width: 0;
        width: auto !important;
        padding: 10px 8px !important;
    }
    
    .action-item { flex-direction: column; align-items: flex-start; gap: 12px; }
    
    /* Formulários e Modais */
    .form-card { padding: 16px; }
    .login-card { padding: 24px; margin: 16px; }
    .modal-content { padding: 24px; width: 90%; margin: 16px; max-height: 90vh; overflow-y: auto;}
    .history-card { flex-direction: column; align-items: flex-start; gap: 12px; }
    
    /* Chat/Whatsapp sidebar expansão total */
    .chat-sidebar { 
        position: fixed; top: 0; right: -100%; bottom: 0; width: 100%; max-width: 100%; z-index: 30;
    }
    .chat-sidebar.open { right: 0; }
}