/* ===============================
   Design System - ValenteRocha
   Paleta Clara e Corporativa (Slate Blue & Cinza)
================================== */
:root {
    /* Cores Corporativas ValenteRocha */
    --primary: #4a6b82; /* Azul Metálico (Slate Blue) */
    --primary-hover: #375366;
    
    --bg-main: #f4f7f9;
    --bg-gradient: linear-gradient(135deg, #ffffff 0%, #e8f0f4 100%);
    
    --card-bg: rgba(255, 255, 255, 0.85);
    --card-border: rgba(74, 107, 130, 0.15);
    
    --text-main: #2d3748; /* Cinza Escuro */
    --text-muted: #64748b;
    
    /* Kanban Stage Colors */
    --pre-venda: #0284c7;
    --venda: #d97706;
    --pos-venda: #059669;
    
    --input-bg: #ffffff;
    --input-border: rgba(74, 107, 130, 0.25);
}

* { margin: 0; padding: 0; box-sizing: border-box; }
body {
    font-family: 'Outfit', sans-serif;
    color: var(--text-main);
    background: var(--bg-main);
    background-image: var(--bg-gradient);
    min-height: 100vh;
    overflow-x: hidden;
}

/* Utilitários Premium */
.glass-panel {
    background: var(--card-bg);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border: 1px solid var(--card-border);
    box-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.05);
}
.glass-panel-heavy {
    background: rgba(255, 255, 255, 0.97);
    backdrop-filter: blur(20px);
    box-shadow: 0 25px 50px -12px rgba(74, 107, 130, 0.15);
    border: 1px solid var(--card-border);
}

button { cursor: pointer; font-family: inherit; transition: all 0.2s; }
.btn {
    padding: 0.6rem 1.2rem;
    border-radius: 8px;
    font-weight: 500;
    border: none;
    font-size: 0.95rem;
    display: inline-flex; align-items: center; gap: 0.5rem;
}
.btn-primary { background: var(--primary); color: white; box-shadow: 0 4px 15px rgba(74, 107, 130, 0.25); }
.btn-primary:hover { background: var(--primary-hover); transform: translateY(-1px); }
.btn-outline { background: transparent; border: 1px solid var(--primary); color: var(--primary); }
.btn-outline:hover { background: rgba(74, 107, 130, 0.08); }

/* App Layout */
.app-container { height: 100vh; display: flex; flex-direction: column; }
.app-header {
    display: flex; justify-content: space-between; align-items: center;
    padding: 1rem 2rem; border-bottom: 1px solid var(--card-border);
}
.logo { display: flex; align-items: center; gap: 0.8rem; font-size: 1.2rem; font-weight: 700; color: #2d3748;}
.logo i { color: var(--primary); }

/* Kanban Board */
.kanban-board {
    display: grid; grid-template-columns: repeat(3, 1fr); gap: 1.5rem;
    padding: 2rem; flex: 1; height: 100%; min-height: 0;
}
.kanban-column {
    display: flex; flex-direction: column; height: 100%;
}
.column-header {
    display: flex; justify-content: space-between; align-items: center;
    margin-bottom: 1rem; padding: 0.5rem 0;
    border-bottom: 2px solid transparent;
}
.column-header h2 { font-size: 1.1rem; font-weight: 600; display: flex; align-items: center; gap: 0.5rem; color: var(--text-main); }
.column-header .count { background: rgba(74, 107, 130, 0.1); padding: 2px 8px; border-radius: 20px; font-size: 0.8rem; color: var(--primary); font-weight: 600;}
.column-header.pre { border-color: var(--pre-venda); }
.column-header.pre i { color: var(--pre-venda); }
.column-header.venda { border-color: var(--venda); }
.column-header.venda i { color: var(--venda); }
.column-header.pos { border-color: var(--pos-venda); }
.column-header.pos i { color: var(--pos-venda); }

.dropzone {
    flex: 1; background: rgba(74, 107, 130, 0.04); border-radius: 12px; padding: 1rem;
    overflow-y: auto; border: 1px dashed transparent;
    transition: all 0.2s;
}
.dropzone.drag-over { border-color: var(--primary); background: rgba(74, 107, 130, 0.08); }

/* Kanban Card */
.lead-card {
    background: #ffffff; border: 1px solid var(--card-border);
    padding: 1rem; border-radius: 10px; margin-bottom: 1rem;
    cursor: grab; transition: transform 0.2s, box-shadow 0.2s;
    box-shadow: 0 2px 4px rgba(0,0,0,0.02);
}
.lead-card:active { cursor: grabbing; }
.lead-card:hover { transform: translateY(-3px); box-shadow: 0 10px 20px -10px rgba(74, 107, 130, 0.2); border-color: rgba(74, 107, 130, 0.3); }
.card-title { font-weight: 600; font-size: 1.05rem; margin-bottom: 0.3rem; color: var(--text-main); }
.card-tags { display: flex; gap: 0.5rem; margin-top: 0.8rem; }
.tag { font-size: 0.75rem; padding: 2px 6px; border-radius: 4px; font-weight: 500;}

/* Modal Overlay */
.modal-overlay {
    position: fixed; top: 0; left: 0; right: 0; bottom: 0;
    background: rgba(45, 55, 72, 0.6); backdrop-filter: blur(4px);
    display: flex; align-items: center; justify-content: center;
    z-index: 100; opacity: 1; transition: opacity 0.3s;
}
.modal-overlay.hidden { opacity: 0; pointer-events: none; display: flex; }
.modal-content {
    width: 650px; max-width: 95%; height: 85vh; border-radius: 16px;
    display: flex; flex-direction: column; overflow: hidden;
    transform: translateY(0) scale(1); transition: all 0.4s cubic-bezier(0.175, 0.885, 0.32, 1.275);
}
.modal-overlay.hidden .modal-content { transform: translateY(30px) scale(0.95); }

.modal-header { display: flex; justify-content: space-between; align-items: center; padding: 1.5rem; border-bottom: 1px solid var(--card-border); background: #ffffff; }
.modal-header h2 { font-size: 1.4rem; font-weight: 700; color: var(--text-main); }
.modal-subtitle { font-size: 0.8rem; color: var(--primary); text-transform: uppercase; letter-spacing: 1px; font-weight: 700; }
.close-btn { background: transparent; border: none; color: var(--text-muted); padding: 0.5rem; border-radius: 5px; }
.close-btn:hover { background: rgba(74, 107, 130, 0.1); color: var(--text-main); }

/* Tabs */
.tabs-nav { display: flex; border-bottom: 1px solid var(--card-border); padding: 0.5rem 1.5rem 0; background: #ffffff;}
.tab-btn {
    background: transparent; border: none; color: var(--text-muted);
    padding: 1rem 1.5rem; font-weight: 600; font-size: 0.95rem;
    border-bottom: 2px solid transparent; position: relative; bottom: -1px;
}
.tab-btn:hover { color: var(--primary); }
.tab-btn.active { color: var(--primary); border-bottom-color: var(--primary); }
.tab-content { display: none; padding: 1.5rem; animation: fadeIn 0.3s ease; }
.tab-content.active { display: block; }

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

/* Inputs/Outputs Section */
.modal-body { flex: 1; overflow-y: auto; background: #fafcff; }
.io-section { margin-bottom: 2rem; }
.io-section h3 { font-size: 0.9rem; font-weight: 700; margin-bottom: 1.2rem; display: flex; align-items: center; gap: 0.5rem; text-transform: uppercase; color: var(--text-muted);}
.io-section.in h3 i { color: var(--primary); }
.io-section.out h3 i { color: var(--pos-venda); }

.form-group { margin-bottom: 1rem; }
.form-group label { display: block; font-size: 0.85rem; color: var(--text-main); font-weight: 500; margin-bottom: 0.4rem; }
.form-group input, .form-group select, .form-group textarea {
    width: 100%; background: var(--input-bg); border: 1px solid var(--input-border);
    border-radius: 8px; padding: 0.8rem; color: var(--text-main); font-family: inherit; font-size: 0.95rem;
    transition: all 0.2s; box-shadow: inset 0 1px 2px rgba(0,0,0,0.02);
}
.form-group input:focus, .form-group textarea:focus { outline: none; border-color: var(--primary); box-shadow: 0 0 0 3px rgba(74, 107, 130, 0.15); }

.received-alert { background: rgba(74, 107, 130, 0.08); border-left: 3px solid var(--primary); padding: 0.8rem 1rem; border-radius: 4px; display: flex; gap: 0.8rem; align-items: center; font-size: 0.9rem; margin-bottom: 1rem; color: var(--text-main); }
.received-alert i { color: var(--primary); }

.action-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 1rem; }
.action-grid.triplo { grid-template-columns: 1fr 1fr 1fr; }
.action-card {
    background: #ffffff; border: 1px solid var(--card-border);
    border-radius: 8px; padding: 1rem; display: flex; flex-direction: column; align-items: center; gap: 0.8rem;
    transition: all 0.2s; text-align: center; box-shadow: 0 2px 4px rgba(0,0,0,0.02);
}
.action-card:hover { background: #fdfdfd; transform: translateY(-2px); border-color: var(--primary); box-shadow: 0 8px 16px -8px rgba(74, 107, 130, 0.2); }
.action-card i { font-size: 1.5rem; color: var(--primary); }
.action-card span { font-size: 0.85rem; font-weight: 600; color: var(--text-main); }
.modal-footer { padding: 1rem 1.5rem; display: flex; justify-content: flex-end; gap: 1rem; border-top: 1px solid var(--card-border); background: #ffffff; }

.mt-15 { margin-top: 1.5rem; }

/* Diagnostic form */
.diagnostic-grid { display: grid; grid-template-columns: 1fr; gap: 1rem; background: rgba(74, 107, 130, 0.03); padding: 1rem; border-radius: 8px; border: 1px solid var(--card-border); }
.diag-item { display: flex; justify-content: space-between; align-items: flex-start; gap: 1rem; border-bottom: 1px solid rgba(0,0,0,0.05); padding-bottom: 0.8rem; }
.diag-item:last-child { border-bottom: none; padding-bottom: 0; }
.diag-text { display: flex; flex-direction: column; gap: 0.2rem; }
.diag-item label { margin-bottom: 0 !important; font-size: 0.9rem !important; color: var(--text-main); font-weight: 600;}
.diag-desc { margin: 0; font-size: 0.75rem; color: var(--text-muted); line-height: 1.3;}
.diag-item input[type="number"] { width: 60px; padding: 0.4rem; text-align: center; border: 1px solid var(--input-border); border-radius: 6px; font-weight: 600; color: var(--primary); margin-top: 2px;}

/* ========================================
   RESPONSIVE & MOBILE OVERRIDES
   ======================================== */
@media (max-width: 900px) {
    .kanban-board {
        grid-template-columns: 1fr;
        gap: 2rem;
        padding: 1rem;
        overflow-y: auto;
    }
    .kanban-column {
        height: auto;
        min-height: 300px;
    }
}

@media (max-width: 768px) {
    .app-header {
        padding: 1rem;
        flex-direction: column;
        gap: 1rem;
        text-align: center;
    }
    .logo h1 {
        font-size: 1.25rem;
    }
    .btn {
        width: 100%;
        justify-content: center;
    }

    .modal-content {
        height: 95vh;
        width: 95%;
    }
    .tabs-nav {
        padding: 0.5rem 0.5rem 0;
    }
    .tab-btn {
        padding: 0.8rem 0.5rem;
        font-size: 0.85rem;
        flex: 1;
        text-align: center;
    }

    .action-grid.triplo {
        grid-template-columns: 1fr;
    }
    .action-grid {
        grid-template-columns: 1fr;
        gap: 0.8rem;
    }

    .diag-item {
        flex-direction: column;
        gap: 0.5rem;
        align-items: stretch;
    }
    .diag-item input[type="number"] {
        width: 100%;
        max-width: 80px;
        align-self: flex-start;
    }
    
    .modal-footer {
        padding: 1rem;
        flex-direction: column-reverse;
        gap: 0.8rem;
    }
    .modal-footer .btn {
        width: 100%;
    }
}

@media (max-width: 480px) {
    .logo h1 {
        font-size: 1.1rem;
    }
}