/* CSS Reset for consistent rendering */
*,
*:before,
*:after {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

html {
    font-size: 16px; /* Base font size for rem units */
    scroll-behavior: smooth;
}

/* Define additional CSS variables */
:root {
    --primary-dark: #20222f;
    --primary-light: #f9f9f9;
    --secondary-light: #c1dff0;
    --tertiary-light: #f79824;
    --accent-on: #4caf50;
    --accent-off: #ff5252;
    --text-dark: #333;
    --text-light: #fff;
    --logo: blue;
    --background-hover: grey;
    --dashboard-bg-darktheme: #181b21;
    --shadow: 0 4px 8px rgba(0, 0, 0, 0.1);
    --border-radius: 8px;
    --transition: all 0.3s ease;
    --spacing-sm: 8px;
    --spacing-md: 16px;
    --spacing-lg: 24px;
    --font-size-base: 1rem;
    --font-size-lg: 1.25rem;
    --font-size-xl: 1.75rem;
}

body.dark-theme {
    background-color: var(--primary-dark);
    color: var(--text-light);
    --shadow: 0 4px 6px rgba(0, 0, 0, 0.3);
}

/* Base body styles */
body {
    font-family: "Roboto", Arial, sans-serif;
    background-color: var(--primary-light);

    color: var(--text-dark);
    transition: var(--transition);
    padding: var(--spacing-lg);
    min-height: 100vh;
    line-height: 1.6;
}

/* Typography */
h1 {
    font-size: var(--font-size-xl);
    font-weight: 700;
    text-align: center;
    margin: var(--spacing-lg) 0;
    color: var(--text-dark);
}

body.dark-theme h1 {
    color: var(--text-light);
}

body.dark-theme h3 {
    color: var(--text-light) !important;
}

body.dark-theme .theme-toggle {
    background-color: var(--primary-light);
    color: var(--text-dark);
}

.theme-toggle:hover {
    opacity: 0.9;
    transform: translateY(-2px);
}

.theme-toggle:focus {
    outline: none;
    box-shadow: 0 0 0 3px rgba(26, 43, 66, 0.3);
}

body.dark-theme .theme-toggle:focus {
    box-shadow: 0 0 0 3px rgba(249, 249, 249, 0.3);
}

/* Mobile (320px - 600px) */
@media (max-width: 600px) {
    html {
        font-size: 14px; /* Slightly smaller base font for mobile */
    }

    body {
        padding: var(--spacing-sm);
    }

    h1 {
        font-size: 1.5rem;
        margin: var(--spacing-md) 0;
    }

    .theme-toggle {
        padding: 6px 12px;
        font-size: 0.875rem;
        top: var(--spacing-sm);
        right: var(--spacing-sm);
    }

    comp2110-dashboard .container {
        grid-template-columns: 1fr;
        gap: var(--spacing-md);
        padding: var(--spacing-sm);
    }

    login-widget {
        margin: var(--spacing-md) auto;
        max-width: 100%;
    }

    device-list-widget {
        grid-template-columns: 1fr;
        gap: var(--spacing-sm);
    }

    ad-widget {
        max-width: 100%;
        height: auto;
        aspect-ratio: 1 / 1;
    }
}

/* Tablet (600px - 1024px) */
@media (min-width: 601px) and (max-width: 1024px) {
    html {
        font-size: 15px;
    }

    body {
        padding: var(--spacing-md);
    }

    h1 {
        font-size: 1.625rem;
    }

    .theme-toggle {
        padding: var(--spacing-sm) var(--spacing-md);
    }

    comp2110-dashboard .container {
        grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
        gap: var(--spacing-md);
    }

    login-widget {
        max-width: 360px;
    }

    device-list-widget {
        grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
    }

    ad-widget {
        max-width: 280px;
    }
}

/* Desktop (1024px and above) */
@media (min-width: 1025px) {
    html {
        font-size: 16px;
    }

    body {
        padding: var(--spacing-lg);
    }

    h1 {
        font-size: var(--font-size-xl);
    }

    .theme-toggle {
        padding: var(--spacing-sm) var(--spacing-md);
    }

    comp2110-dashboard .container {
        grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
        gap: var(--spacing-lg);
        max-width: 1200px;
        margin: 0 auto;
    }

    login-widget {
        max-width: 400px;
    }

    device-list-widget {
        grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    }

    ad-widget {
        max-width: 300px;
    }
}