:root {
    --bg-main: #101c32;
    --bg-sidebar: #101c32;
    --bg-card: #202b46;
    --text-primary: #ffffff;
    --text-secondary: #a0aabf;
    --text-muted: #6b7794;
    --accent-red: #d32029;
    --accent-red-hover: #b01b22;
    --border-color: #313d5a;
    --hover-bg: #2a3754;
    --font-main: 'Inter', sans-serif;
}

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

body {
    font-family: var(--font-main);
    background-color: var(--bg-main);
    color: var(--text-primary);
    overflow-x: hidden;
}

.app-container {
    display: flex;
    min-height: 100vh;
}

/* Sidebar */
.sidebar {
    width: 250px;
    background-color: var(--bg-sidebar);
    border-right: 1px solid var(--border-color);
    padding: 20px 0;
    display: flex;
    flex-direction: column;
    flex-shrink: 0;
}

.logo {
    display: flex;
    align-items: center;
    padding: 0 20px 30px;
    gap: 15px;
}

.logo-box {
    background-color: var(--accent-red);
    color: white;
    padding: 10px;
    display: flex;
    flex-direction: column;
    font-size: 14px;
    font-weight: 700;
    line-height: 1.1;
    width: 70px;
    text-align: center;
}

.logo-box .logo-sub {
    font-size: 7px;
    font-weight: 400;
    margin-top: 5px;
    border-top: 1px solid rgba(255,255,255,0.5);
    padding-top: 2px;
}

.logo-text h2 {
    font-size: 16px;
    font-weight: 600;
    line-height: 1.2;
}

.logo-text p {
    font-size: 12px;
    color: var(--text-secondary);
    font-style: italic;
}

.main-nav ul {
    list-style: none;
}

.main-nav li a {
    display: block;
    padding: 12px 20px;
    color: var(--text-primary);
    text-decoration: none;
    font-size: 15px;
    font-weight: 500;
    transition: background 0.2s;
}

.main-nav li a:hover {
    background-color: var(--hover-bg);
}

.main-nav li a.sub-nav {
    padding-left: 40px;
    font-size: 14px;
    font-weight: 400;
    color: var(--text-secondary);
    font-style: italic;
}

.main-nav li a.sub-nav.active {
    color: var(--text-primary);
    font-weight: 600;
}

.sidebar-footer {
    margin-top: auto;
    padding: 20px;
}

/* Main Content */
.main-content {
    flex: 1;
    padding: 20px 30px;
    display: flex;
    flex-direction: column;
    overflow-y: auto;
}

.top-header {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    margin-bottom: 25px;
    padding-bottom: 15px;
    border-bottom: 1px solid var(--border-color);
}

.title-area h1 {
    font-size: 24px;
    font-weight: 600;
    margin-bottom: 5px;
}

.title-area p {
    font-size: 14px;
    color: var(--text-secondary);
}

.title-area small {
    font-size: 12px;
    color: var(--text-muted);
    font-style: italic;
}

.filters {
    display: flex;
    gap: 20px;
    align-items: center;
}

.clear-filters {
    background: none;
    border: none;
    color: white;
    font-size: 18px;
    cursor: pointer;
    opacity: 0.7;
    transition: opacity 0.2s;
}
.clear-filters:hover { opacity: 1; }

.filter-group {
    display: flex;
    flex-direction: column;
    gap: 5px;
}

.filter-group label {
    font-size: 12px;
    color: var(--text-secondary);
}

.filter-group select {
    background-color: transparent;
    color: white;
    border: 1px solid var(--border-color);
    padding: 8px 30px 8px 10px;
    border-radius: 4px;
    font-family: var(--font-main);
    font-size: 14px;
    appearance: none;
    background-image: url("data:image/svg+xml;charset=US-ASCII,%3Csvg%20xmlns%3D%22http%3A%2F%2Fwww.w3.org%2F2000%2Fsvg%22%20width%3D%22292.4%22%20height%3D%22292.4%22%3E%3Cpath%20fill%3D%22%23FFFFFF%22%20d%3D%22M287%2069.4a17.6%2017.6%200%200%200-13-5.4H18.4c-5%200-9.3%201.8-12.9%205.4A17.6%2017.6%200%200%200%200%2082.2c0%205%201.8%209.3%205.4%2012.9l128%20127.9c3.6%203.6%207.8%205.4%2012.8%205.4s9.2-1.8%2012.8-5.4L287%2095c3.5-3.5%205.4-7.8%205.4-12.8%200-5-1.9-9.2-5.5-12.8z%22%2F%3E%3C%2Fsvg%3E");
    background-repeat: no-repeat;
    background-position: right 10px top 50%;
    background-size: 10px auto;
}
.filter-group select option {
    background-color: var(--bg-card);
    color: white;
}

/* Dashboard Grid */
.dashboard-grid {
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.card {
    background-color: var(--bg-card);
    border-radius: 8px;
    padding: 15px;
    box-shadow: 0 4px 6px rgba(0,0,0,0.1);
}

.summary-cards {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 15px;
}

.summary-card {
    display: flex;
    align-items: center;
    gap: 15px;
}

.summary-card .icon {
    font-size: 24px;
    opacity: 0.5;
}

.summary-card .info h3 {
    font-size: 24px;
    font-weight: 700;
    margin-bottom: 2px;
}

.summary-card .info p {
    font-size: 12px;
    color: var(--text-secondary);
}

.main-chart-section {
    display: grid;
    grid-template-columns: 3fr 1fr;
    gap: 15px;
}

.chart-card h3 {
    font-size: 14px;
    font-weight: 600;
    text-align: center;
    margin-bottom: 15px;
}

.chart-note {
    font-size: 11px;
    color: var(--text-muted);
    font-style: italic;
    margin-top: 10px;
}

.tematica-card h3 {
    text-align: center;
    margin-bottom: 15px;
    font-size: 14px;
}

.search-box input {
    width: 100%;
    padding: 8px;
    border-radius: 4px;
    border: none;
    margin-bottom: 10px;
    font-family: var(--font-main);
    font-size: 12px;
}

.checkbox-list {
    max-height: 250px;
    overflow-y: auto;
    display: flex;
    flex-direction: column;
    gap: 8px;
    font-size: 12px;
}

.checkbox-list label {
    display: flex;
    align-items: center;
    gap: 8px;
    cursor: pointer;
}

.middle-charts {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 15px;
}

.bottom-charts {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 15px;
}

.bottom-charts .left-col {
    display: grid;
    grid-template-rows: 1fr 1fr;
    gap: 15px;
}

.audiencia-section h4 {
    text-align: center;
    font-size: 12px;
    margin-bottom: 10px;
}

.audiencia-footer {
    display: flex;
    justify-content: space-around;
    margin-top: 20px;
    font-size: 12px;
    font-weight: 600;
}

/* Upload Page */
.upload-body {
    background-color: var(--bg-main);
}

.btn {
    display: inline-block;
    padding: 10px 20px;
    border-radius: 4px;
    text-decoration: none;
    font-size: 14px;
    font-weight: 600;
    cursor: pointer;
    text-align: center;
    transition: background 0.2s;
    border: none;
}

.btn-primary {
    background-color: var(--accent-red);
    color: white;
}

.btn-primary:hover {
    background-color: var(--accent-red-hover);
}

.btn-secondary {
    background-color: transparent;
    border: 1px solid var(--border-color);
    color: white;
    width: 100%;
}

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

.upload-container {
    max-width: 600px;
    margin: 40px auto;
    width: 100%;
}

.drop-zone {
    max-width: 100%;
    height: 200px;
    padding: 25px;
    display: flex;
    align-items: center;
    justify-content: center;
    text-align: center;
    font-family: "Inter", sans-serif;
    font-weight: 500;
    font-size: 20px;
    cursor: pointer;
    color: var(--text-secondary);
    border: 2px dashed var(--border-color);
    border-radius: 10px;
    background-color: var(--bg-card);
    transition: border-color 0.3s ease, background-color 0.3s ease;
}

.drop-zone--over {
    border-style: solid;
    border-color: var(--accent-red);
    background-color: var(--hover-bg);
}

.drop-zone__input {
    display: none;
}

.upload-status {
    margin-top: 20px;
    text-align: center;
    font-size: 14px;
}

.upload-status .success {
    color: #4caf50;
}

.upload-status .error {
    color: var(--accent-red);
}

.upload-status .loading {
    color: var(--text-secondary);
}

/* Scrollbar styling */
::-webkit-scrollbar {
    width: 6px;
}
::-webkit-scrollbar-track {
    background: var(--bg-card);
}
::-webkit-scrollbar-thumb {
    background: var(--border-color);
    border-radius: 3px;
}

/* Responsive */
@media (max-width: 1024px) {
    .summary-cards {
        grid-template-columns: repeat(2, 1fr);
    }
    .main-chart-section {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 768px) {
    .app-container {
        flex-direction: column;
    }
    .sidebar {
        width: 100%;
        border-right: none;
        border-bottom: 1px solid var(--border-color);
        padding: 15px;
    }
    .top-header {
        flex-direction: column;
        gap: 15px;
    }
    .filters {
        width: 100%;
        flex-wrap: wrap;
    }
    .middle-charts, .bottom-charts {
        grid-template-columns: 1fr;
    }
}