:root {
    --bg: #f2f5fb; /* Fundo exato da imagem */
    --sidebar-bg: #63708f; /* Tom ardósia / slate da imagem original */
    --card-bg: #ffffff;
    --border: #e3e8f4;
    --text: #414a63; /* Texto corporativo suave */
    --text-muted: #8d97ad;
    --accent: #4a7af7; /* Azul do botão e gráficos */
    --accent-hover: #3b66d8;
    --sidebar-text: #c8d1e3; /* Texto inativo da sidebar na imagem */
    --sidebar-active: #ffffff; 
    --sidebar-active-bg: rgba(255, 255, 255, 0.15);
    --success: #36b37e;
    --danger: #ef4444;
    --warning: #f59e0b;
    --glass: rgba(255, 255, 255, 1);
    --shadow: 0px 5px 20px rgba(99, 112, 143, 0.08); /* Sombra exata da imagem */
}

* { box-sizing: border-box; margin: 0; padding: 0; }

body {
    background-color: var(--bg);
    color: var(--text);
    font-family: 'Inter', sans-serif;
    min-height: 100vh;
    overflow-x: hidden;
}

.glass-bg { display: none; }
.hidden { display: none !important; }

/* Upload Screen */
.upload-card {
    background: var(--card-bg); border: 1px solid var(--border); border-radius: 16px;
    padding: 3rem; text-align: center; max-width: 500px;
    box-shadow: var(--shadow);
}
.upload-icon { font-size: 3rem; margin-bottom: 1rem; }
.upload-card h2 { margin-bottom: 0.5rem; font-weight: 800; font-size: 1.8rem; color: var(--text); }
.upload-card p { color: var(--text-muted); margin-bottom: 2rem; font-size: 1rem; line-height: 1.5; }
.privacy-note { font-size: 0.85rem; color: var(--success); margin-top: -1rem; margin-bottom: 2.5rem !important; }

.btn-upload {
    display: inline-block; background: var(--accent); color: white;
    padding: 1rem 2rem; border-radius: 12px; font-weight: 600; cursor: pointer;
    transition: 0.2s ease; box-shadow: 0 4px 15px rgba(67, 24, 255, 0.2);
}
.btn-upload:hover { background: var(--accent-hover); transform: translateY(-2px); }

.loading { margin-top: 1.5rem; color: var(--accent); font-weight: 600; animation: pulse 1.5s infinite; }
@keyframes pulse { 0%, 100% { opacity: 1; } 50% { opacity: 0.5; } }

/* Sidebar Layout */
.app-layout { display: flex; min-height: 100vh; }

.sidebar {
    width: 280px;
    background: var(--sidebar-bg);
    border-right: 1px solid var(--border);
    display: flex; flex-direction: column;
    padding: 2.5rem 1.5rem;
    position: fixed; height: 100vh;
}

.sidebar-header { margin-bottom: 3rem; text-align: center; }
.sidebar-header h2 { font-weight: 800; font-size: 1.6rem; color: #ffffff; margin-bottom: 0.5rem; }
.sidebar-header p { display: none; }

.role-badge {
    display: inline-block; padding: 6px 12px; border-radius: 20px;
    font-size: 0.75rem; font-weight: bold; color: white; background: var(--accent);
}

.sidebar-nav { display: flex; flex-direction: column; gap: 0.5rem; flex: 1; }

.nav-link {
    text-decoration: none; color: var(--sidebar-text);
    padding: 1rem 1.2rem; border-radius: 12px; font-size: 1rem; font-weight: 600;
    transition: all 0.2s ease; display: flex; align-items: center; gap: 10px;
}

.nav-link:hover { background: var(--sidebar-active-bg); color: var(--sidebar-active); }
.nav-link.active { background: var(--sidebar-active-bg); color: var(--sidebar-active); border-left: 4px solid var(--accent); border-radius: 0 12px 12px 0; }

.nav-divider { height: 1px; background: rgba(255,255,255,0.05); margin: 1.5rem 0; }

.sidebar-footer { margin-top: auto; }
.btn-logout {
    width: 100%; background: rgba(255, 255, 255, 0.05); border: none;
    color: var(--sidebar-text); padding: 1rem 1.2rem; border-radius: 12px;
    cursor: pointer; font-weight: 600; transition: all 0.2s;
    text-align: left; font-size: 1rem;
}
.btn-logout:hover { background: rgba(239, 68, 68, 0.2); color: #ff9999; }

.main-content {
    flex: 1; margin-left: 280px; padding: 2.5rem 3rem; overflow-y: auto;
}

.topbar {
    display: flex; justify-content: space-between; align-items: center;
    margin-bottom: 2.5rem;
}

.topbar h2 { font-size: 2.2rem; font-weight: 800; color: var(--text); letter-spacing: -0.5px; }

.controls { display: flex; gap: 1rem; align-items: center; }

select {
    background: var(--card-bg); color: var(--text); border: 1px solid var(--border);
    padding: 0.8rem 1.2rem; border-radius: 12px; font-family: 'Inter'; font-size: 1rem; cursor: pointer;
    font-weight: 600; outline: none; transition: 0.2s ease; box-shadow: var(--shadow);
}
select:hover { border-color: var(--accent); }

.btn-export {
    background: var(--card-bg); color: var(--text); border: 1px solid var(--border);
    padding: 0.8rem 1.2rem; border-radius: 12px; font-weight: 600; font-family: 'Inter';
    cursor: pointer; transition: 0.2s ease; box-shadow: var(--shadow);
}
.btn-export:hover { border-color: var(--accent); color: var(--accent); }

.view-container { animation: fadeIn 0.4s ease; }
@keyframes fadeIn { from { opacity: 0; transform: translateY(10px); } to { opacity: 1; transform: translateY(0); } }

.upload-screen-inner { display: flex; justify-content: center; padding-top: 4rem; }

/* Dashboard Content */
.insights-prescritivos { display: grid; grid-template-columns: 1fr 1fr; gap: 1.5rem; margin-bottom: 1.5rem; }
.alert-card {
    background: var(--card-bg); border-radius: 20px; padding: 1.5rem;
    display: flex; align-items: flex-start; gap: 1.2rem; box-shadow: var(--shadow);
}
.alert-card.danger { border-left: 5px solid var(--danger); }
.alert-card.success { border-left: 5px solid var(--success); }
.alert-card.warning { border-left: 5px solid var(--warning); }
.alert-card .icon { font-size: 2rem; }
.alert-card h3 { font-size: 1.1rem; margin-bottom: 0.4rem; font-weight: 700; color: var(--text); }
.alert-card p { font-size: 0.95rem; color: var(--text-muted); line-height: 1.5; }
.alert-card strong { color: var(--text); font-weight: 800; }

.kpi-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 1.5rem; margin-bottom: 1.5rem; }
.kpi-card {
    background: var(--card-bg); border-radius: 20px; padding: 1.8rem 1.5rem;
    text-align: left; box-shadow: var(--shadow); transition: transform 0.2s ease;
}
.kpi-card:hover { transform: translateY(-5px); }
.kpi-card h4 { color: var(--text-muted); font-size: 0.85rem; text-transform: uppercase; letter-spacing: 1px; margin-bottom: 0.8rem; font-weight: 600; }
.kpi-card h2 { font-size: 1.8rem; font-weight: 800; color: var(--text); letter-spacing: -0.5px; }
.text-green { color: var(--success) !important; }
.text-danger { color: var(--danger) !important; }

.charts-grid { display: grid; grid-template-columns: 2fr 1fr; gap: 1.5rem; margin-bottom: 2rem; }
.chart-container {
    background: var(--card-bg); border-radius: 20px; padding: 1.5rem; box-shadow: var(--shadow);
}
.chart-container.span-2 { grid-column: span 2; }
.chart-container h3 { font-size: 1.1rem; color: var(--text); margin-bottom: 1.5rem; font-weight: 700; }

@media(max-width: 1024px) {
    .insights-prescritivos, .kpi-grid, .charts-grid { grid-template-columns: 1fr; }
    .chart-container.span-2 { grid-column: span 1; }
}