:root {
    --primary-bg: #f8fafc;
    --card-bg: #ffffff;
    --accent-color: #3b82f6; 
    --accent-hover: #2563eb;
    --sidebar-bg: #0f172a; 
    --sidebar-text: #94a3b8;
    --sidebar-active: #ffffff;
    --text-main: #1e293b;
    --text-muted: #64748b;
    --border-color: #e2e8f0;
    --soft-shadow: 0 4px 6px -1px rgb(0 0 0 / 0.1), 0 2px 4px -2px rgb(0 0 0 / 0.1);
    --hover-shadow: 0 20px 25px -5px rgb(0 0 0 / 0.1), 0 8px 10px -6px rgb(0 0 0 / 0.1);
    
    /* Sidebar Variables */
    --sidebar-width: 260px;
    --sidebar-collapsed-width: 80px;
    --transition-speed: 0.3s;
}

body {
    background: var(--primary-bg);
    color: var(--text-main);
    font-family: 'Inter', 'Outfit', sans-serif;
    font-size: 0.875rem; /* Smaller base font */
    margin: 0;
    -webkit-font-smoothing: antialiased;
}

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

.sidebar-premium {
    width: var(--sidebar-width);
    background: var(--sidebar-bg);
    padding: 1.5rem 1rem;
    position: sticky;
    top: 0;
    height: 100vh;
    display: flex;
    flex-direction: column;
    flex-shrink: 0;
    z-index: 1000;
    transition: width var(--transition-speed) cubic-bezier(0.4, 0, 0.2, 1);
    overflow: hidden;
    white-space: nowrap;
}

.sidebar-premium.collapsed {
    width: var(--sidebar-collapsed-width);
    padding: 1.5rem 0.75rem;
}

.main-content {
    flex-grow: 1;
    min-width: 0;
    display: flex;
    flex-direction: column;
    transition: all var(--transition-speed);
}

.top-bar {
    height: 56px; /* Slightly more compact */
    background: white;
    border-bottom: 1px solid var(--border-color);
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0 1.5rem;
    position: sticky;
    top: 0;
    z-index: 900;
}

/* Sidebar Nav */
.sidebar-link {
    display: flex;
    align-items: center;
    padding: 0.625rem 0.875rem; /* Smaller padding */
    color: var(--sidebar-text);
    text-decoration: none;
    border-radius: 0.625rem;
    margin-bottom: 0.25rem;
    font-weight: 500;
    font-size: 0.8rem; /* Smaller nav text */
    transition: all 0.2s;
}

.sidebar-link:hover {
    color: white;
    background: rgba(255, 255, 255, 0.05);
}

.sidebar-link.active {
    background: var(--accent-color);
    color: white;
}

.sidebar-link i {
    width: 20px;
    min-width: 20px;
    margin-right: 12px;
    font-size: 1rem;
    display: flex;
    justify-content: center;
}

.sidebar-premium.collapsed .sidebar-link i {
    margin-right: 0;
}

.sidebar-premium.collapsed .sidebar-link span,
.sidebar-premium.collapsed .sidebar-brand-text,
.sidebar-premium.collapsed .nav-category {
    display: none;
}

.sidebar-premium.collapsed .sidebar-link {
    justify-content: center;
    padding: 0.75rem;
}

.nav-category {
    color: var(--sidebar-text);
    opacity: 0.5;
    font-size: 0.65rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    padding: 0 0.875rem;
    margin: 1.5rem 0 0.75rem;
}

/* Cards */
.glass-card {
    background: white;
    border-radius: 0.75rem;
    box-shadow: var(--soft-shadow);
    border: 1px solid var(--border-color);
}

/* Response Utilities */
@media (max-width: 768px) {
    .sidebar-premium {
        position: fixed;
        left: -100%;
        transition: left var(--transition-speed);
    }
    .sidebar-premium.mobile-open {
        left: 0;
        width: 260px;
    }
    .sidebar-premium.mobile-open .sidebar-link span {
        display: inline;
    }
}

/* Compact Typography */
h1, h2, h3 { font-size: 1.5rem; font-weight: 700; }
h4, h5 { font-size: 1.1rem; font-weight: 600; }
h6 { font-size: 0.9rem; font-weight: 600; }
p, span, label { font-size: 0.875rem; }
.small { font-size: 0.75rem !important; }

/* Buttons */
.btn-premium {
    padding: 0.5rem 1.25rem;
    font-size: 0.875rem;
    border-radius: 0.5rem;
}

.form-input {
    padding: 0.625rem 0.875rem;
    font-size: 0.875rem;
    border-radius: 0.5rem;
}

/* Responsive Overrides */
.main-grid {
    display: grid;
    gap: 1.25rem;
    padding: 1.25rem;
}