:root {
    --primary-color: #047857;
    --primary-dark: #065f46;
    --primary-light: #10b981;
    --bg-color: #f8fafc;
    --sidebar-bg: #ffffff;
    --header-bg: #ffffff;
    --pane-bg: #ffffff;
    --text-main: #0f172a;
    --text-muted: #64748b;
    --border-color: #e2e8f0;
    --shadow: 0 4px 6px -1px rgb(0 0 0 / 0.1), 0 2px 4px -2px rgb(0 0 0 / 0.1);
    --transition-fast: 0.2s cubic-bezier(0.4, 0, 0.2, 1);
    --transition-slow: 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    --sidebar-width: 70px;
    --sidebar-expanded-width: 200px;
}

.dark-theme {
    --bg-color: #0f172a;
    --sidebar-bg: #1e293b;
    --header-bg: #1e293b;
    --pane-bg: #1e293b;
    --text-main: #f1f5f9;
    --text-muted: #94a3b8;
    --border-color: #334155;
    --shadow: 0 10px 15px -3px rgb(0 0 0 / 0.5);
}

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

body {
    font-family: 'Inter', sans-serif;
    background-color: var(--bg-color);
    color: var(--text-main);
    line-height: 1.6;
    height: 100vh;
    width: 100vw;
    display: flex;
    overflow: hidden;
    transition: background-color var(--transition-fast), color var(--transition-fast);
}

.main-content {
    flex: 1;
    display: flex;
    flex-direction: column;
    overflow: hidden;
    position: relative;
}

.app-header {
    height: 64px;
    background-color: var(--header-bg);
    border-bottom: 1px solid var(--border-color);
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 0 2rem;
    z-index: 10;
}

.header-left {
    display: flex;
    align-items: center;
    gap: 2rem;
}

.header-left h1 {
    font-family: 'Outfit', sans-serif;
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--primary-color);
}

.sub-nav {
    display: flex;
    gap: 0.5rem;
    background: var(--bg-color);
    padding: 4px;
    border-radius: 8px;
    border: 1px solid var(--border-color);
}

.sub-nav-item {
    padding: 6px 16px;
    font-size: 0.875rem;
    font-weight: 500;
    border-radius: 6px;
    cursor: pointer;
    border: none;
    background: transparent;
    color: var(--text-muted);
    transition: var(--transition-fast);
}

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

.company-name {
    font-weight: 600;
    font-size: 0.9rem;
    color: var(--text-muted);
}

.tool-container {
    flex: 1;
    display: flex;
    overflow: hidden;
    position: relative;
}

.hidden {
    display: none !important;
}