:root {
    --sidebar-bg: #1e293b;
    --sidebar-hover: #334155;
    --main-bg: #f8fafc;
    --primary: #4f46e5;
    --primary-hover: #4338ca;
    --text-main: #0f172a;
    --text-muted: #64748b;
    --text-light: #f1f5f9;
    --border: #e2e8f0;
    --white: #ffffff;
    --sidebar-width: 260px;
}

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

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
    background-color: var(--main-bg);
    color: var(--text-main);
    line-height: 1.5;
    -webkit-font-smoothing: antialiased;
    overflow: hidden;
}

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

/* Sidebar */
.sidebar {
    width: var(--sidebar-width);
    background-color: var(--sidebar-bg);
    color: var(--text-light);
    display: flex;
    flex-direction: column;
    position: fixed;
    height: 100vh;
    z-index: 1000;
    transition: transform 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

.sidebar-header {
    padding: 2rem 1.5rem;
}

.logo {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    font-size: 1.25rem;
    font-weight: 600;
    color: var(--white);
}

.logo i {
    color: #38bdf8;
}

.sidebar-nav {
    flex: 1;
    padding: 0 1rem;
}

.nav-group {
    margin-bottom: 2rem;
}

.group-title {
    display: block;
    font-size: 0.75rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    color: var(--text-muted);
    margin-bottom: 0.75rem;
    padding-left: 0.5rem;
}

.nav-link {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    padding: 0.75rem 1rem;
    color: #94a3b8;
    text-decoration: none;
    border-radius: 0.5rem;
    font-size: 0.9375rem;
    font-weight: 500;
    transition: all 0.2s;
}

.nav-link:hover {
    background-color: var(--sidebar-hover);
    color: var(--white);
}

.nav-link.active {
    background-color: var(--primary);
    color: var(--white);
}

.sidebar-footer {
    padding: 1.5rem;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
}

.sync-status {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-size: 0.8125rem;
    color: #94a3b8;
}

.status-dot {
    width: 8px;
    height: 8px;
    background-color: #10b981;
    border-radius: 50%;
}

/* Content Area */
.content-area {
    flex: 1;
    margin-left: var(--sidebar-width);
    padding: 2rem;
    display: flex;
    flex-direction: column;
    height: 100vh;
}

.content-header {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    margin-bottom: 1.5rem;
    flex-shrink: 0;
}

.title-block h1 {
    font-size: 1.5rem;
    font-weight: 600;
    color: var(--text-main);
    letter-spacing: -0.02em;
}

.title-block p {
    color: var(--text-muted);
    font-size: 0.875rem;
    margin-top: 0.125rem;
}

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.5rem 1rem;
    border-radius: 0.5rem;
    font-size: 0.875rem;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.2s;
    border: none;
}

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

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

/* Report Wrapper */
.report-wrapper {
    flex: 1;
    background-color: var(--white);
    border: 1px solid var(--border);
    border-radius: 0.75rem;
    overflow: hidden;
    box-shadow: 0 1px 3px 0 rgba(0, 0, 0, 0.1);
    position: relative;
    width: 100%;
}

.iframe-container {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
}

#powerbi-report {
    width: 100%;
    height: 100%;
    border: none;
}

/* Mobile Layout */
.mobile-header {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    height: 64px;
    background-color: var(--sidebar-bg);
    padding: 0 1.25rem;
    align-items: center;
    justify-content: space-between;
    z-index: 1100;
}

@media (max-width: 1024px) {
    .mobile-header {
        display: flex;
    }
    
    .sidebar {
        transform: translateX(-100%);
    }
    
    .sidebar.open {
        transform: translateX(0);
    }
    
    .content-area {
        margin-left: 0;
        padding: 5.5rem 1rem 1rem 1rem;
    }
    
    .content-header {
        flex-direction: column;
        gap: 1rem;
    }
    
    .header-actions {
        width: 100%;
    }
    
    .btn {
        width: 100%;
        justify-content: center;
    }
}