:root {
        --primary: #e95d4e;
        --dark: #2d2b2b;
        --light: #f8f6f0;
        --gray: #7a7a7a;
        --card-bg: white;
        --radius: 16px;
        --shadow: 0 4px 20px rgba(0, 0, 0, 0.08);
    }

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

    body {
        font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
        background-color: var(--light);
        color: var(--dark);
        line-height: 1.6;
        min-height: 100vh;
        display: flex;
        flex-direction: column;
    }

    .container {
        width: 100%;
        max-width: 800px;
        margin: 0 auto;
        padding: 0 20px
    }

    header {
        background: white;
        padding: 1rem 1.5rem;
        box-shadow: 0 2px 10px rgba(0, 0, 0, 0.05);
        display: flex;
        justify-content: space-between;
        align-items: center;
        position: relative;
    }

    .logo {
        font-size: 1.8rem;
        font-weight: 800;
        color: var(--primary);
        text-decoration: none;
        display: flex;
        align-items: center;
        gap: 8px;
    }

    .nav-menu {
        display: flex;
        gap: 1.2rem;
        align-items: center;
    }

    .nav-menu a {
        text-decoration: none;
        color: var(--dark);
        font-weight: 500;
        font-size: 0.95rem;
        padding: 0.4rem 0.6rem;
        border-radius: 6px;
        transition: all 0.2s;
    }

    .nav-menu a:hover {
        color: var(--primary);
        background-color: #fff0ef;
    }

    /* Hamburger Button */
    .menu-toggle {
        display: none;
        flex-direction: column;
        justify-content: space-between;
        width: 24px;
        height: 18px;
        cursor: pointer;
    }

    .menu-toggle span {
        height: 3px;
        background: var(--dark);
        border-radius: 2px;
        transition: 0.3s;
    }

    .tool-heading {
        margin-top: 10px;
        text-align: center;
    }

    /* Mobile menu behavior */
    @media (max-width: 768px) {
        .menu-toggle {
            display: flex;
        }

        .nav-menu {
            flex-direction: column;
            position: absolute;
            top: 100%;
            left: 0;
            width: 100%;
            background: white;
            box-shadow: var(--shadow);
            overflow: hidden;
            max-height: 0;
            transition: max-height 0.3s ease-in-out;
        }

        .nav-menu.show {
            max-height: 300px;
        }

        .nav-menu a {
            padding: 0.8rem 1rem;
            border-top: 1px solid #f2f2f2;
            width: 100%;
            text-align: center;
        }
    }

    footer {
        background: #faf9f7;
        text-align: center;
        padding: 1.6rem 1.5rem;
        color: var(--gray);
        font-size: 0.9rem;
        border-top: 1px solid #eee;
        margin-top: auto;
    }