:root {
    /* Geeky color palette - terminal inspired */
    --color-bg-primary: #0d1117;
    --color-bg-secondary: #161b22;
    --color-bg-tertiary: #21262d;
    --color-text-primary: #e6edf3;
    --color-text-secondary: #8b949e;
    --color-accent: #58a6ff;
    --color-accent-hover: #79c0ff;
    --color-border: #30363d;
    --color-success: #3fb950;
    --color-danger: #da3633;
    --color-danger-hover: #f85149;
    --color-danger-text: #ffffff;

    /* Article link colors - visited/unvisited distinction */
    --color-link-unvisited: #58a6ff;
    --color-link-visited: #bc8cff;
    --color-link-hover: #79c0ff;

    /* Typography */
    --font-sans: 'Inter', system-ui, -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    --font-mono: 'JetBrains Mono', 'Fira Code', 'Consolas', 'Monaco', monospace;

    /* Spacing */
    --spacing-xs: 0.25rem;
    --spacing-sm: 0.5rem;
    --spacing-md: 1rem;
    --spacing-lg: 1.5rem;
    --spacing-xl: 2rem;

    /* Layout */
    --sidebar-width: 240px;
    --content-max-width: 1200px;
    --article-max-width: 680px;
}

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

body {
    font-family: var(--font-sans);
    background-color: var(--color-bg-primary);
    color: var(--color-text-primary);
    line-height: 1.6;
    display: flex;
    min-height: 100vh;
}

/* Modal Dialog Styles */
/* .modal-filler first dialog child needed to prevent closing by clicking the dialog padding */
dialog:modal>.modal-filler {
    opacity: 0;
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: -10;
}

dialog {
    background-color: var(--color-bg-secondary);
    border: 1px solid var(--color-border);
    border-radius: 8px;
    padding: var(--spacing-xl);
    max-width: 500px;
    color: var(--color-text-primary);
    font-family: var(--font-sans);
    line-height: 1.6;
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.5);

    /* Center the dialog */
    position: fixed;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    margin: 0;

    /* Backdrop styling */
    &::backdrop {
        background-color: rgba(0, 0, 0, 0.7);
        backdrop-filter: blur(4px);
    }

    /* Dialog buttons container */
    .dialog-buttons {
        display: flex;
        gap: var(--spacing-md);
        margin-top: var(--spacing-xl);
        justify-content: flex-end;

        button.dialog-action-button {
            padding: var(--spacing-sm) var(--spacing-lg);
            border-radius: 6px;
            font-family: var(--font-sans);
            font-size: 0.95rem;
            font-weight: 600;
            cursor: pointer;
            transition: all 0.2s ease;
            border: 2px solid transparent;
            white-space: nowrap;

            /* Default button (Cancel, secondary actions) */
            background-color: var(--color-bg-tertiary);
            color: var(--color-text-primary);
            border-color: var(--color-border);

            &:hover {
                background-color: var(--color-bg-primary);
                border-color: var(--color-accent);
            }

            &:active {
                transform: scale(0.98);
            }

            /* Primary action button (last button) */
            &:last-child {
                background-color: var(--color-accent);
                color: var(--color-bg-primary);
                border-color: var(--color-accent);

                &:hover {
                    background-color: var(--color-accent-hover);
                    border-color: var(--color-accent-hover);
                }
            }

            /* Danger action button (destructive actions) */
            &.danger {
                background-color: var(--color-danger);
                color: var(--color-danger-text);
                border-color: var(--color-danger);

                &:hover {
                    background-color: var(--color-danger-hover);
                    border-color: var(--color-danger-hover);
                }
            }
        }
    }
}

/* Sidebar Navigation */
aside {
    width: var(--sidebar-width);
    background-color: var(--color-bg-secondary);
    border-right: 1px solid var(--color-border);
    padding: var(--spacing-lg);
    position: fixed;
    top: 0;
    left: 0;
    height: 100vh;
    overflow-y: auto;

    nav {
        ul {
            list-style: none;

            li {
                margin-bottom: var(--spacing-sm);

                a {
                    display: block;
                    padding: var(--spacing-sm) var(--spacing-md);
                    color: var(--color-text-secondary);
                    text-decoration: none;
                    border-radius: 6px;
                    transition: all 0.2s ease;
                    font-size: 0.95rem;
                    font-weight: 500;

                    &:hover {
                        background-color: var(--color-bg-tertiary);
                        color: var(--color-text-primary);
                    }

                    &:active {
                        transform: scale(0.98);
                    }
                }
            }
        }
    }
}

/* Main Content Area */
main {
    margin-left: var(--sidebar-width);
    flex: 1;
    padding: var(--spacing-xl);
    width: calc(100% - var(--sidebar-width));

    .page-header {
        margin-bottom: var(--spacing-xl);
        padding-bottom: var(--spacing-lg);
        border-bottom: 2px solid var(--color-border);

        h1 {
            font-size: 2rem;
            font-weight: 700;
            color: var(--color-text-primary);
            letter-spacing: -0.02em;

            /* Subtle geeky monospace accent */
            &::before {
                content: '> ';
                font-family: var(--font-mono);
                color: var(--color-accent);
                font-weight: 600;
            }
        }
    }
}

/* Article River Styles */
ul.articles {
    list-style: none;
    max-width: var(--article-max-width);

    li {
        margin-bottom: var(--spacing-xl);

        article.feed-article {
            background-color: var(--color-bg-secondary);
            border: 1px solid var(--color-border);
            border-radius: 8px;
            padding: var(--spacing-lg);
            transition: border-color 0.2s ease;

            &:hover {
                border-color: var(--color-accent);
            }

            h3 {
                margin-bottom: var(--spacing-sm);
                font-size: 1.25rem;
                font-weight: 600;
                line-height: 1.4;

                a {
                    color: var(--color-link-unvisited);
                    text-decoration: none;
                    transition: color 0.2s ease;

                    &:visited {
                        color: var(--color-link-visited);
                    }

                    &:hover {
                        color: var(--color-link-hover);
                        text-decoration: underline;
                    }
                }
            }

            a.article-meta {
                display: inline-block;
                font-size: 0.875rem;
                color: var(--color-text-secondary);
                text-decoration: none;
                padding: var(--spacing-xs) 0;
                transition: color 0.2s ease;

                &:hover {
                    color: var(--color-accent);
                }
            }

            p.article-meta {
                font-size: 0.875rem;
                color: var(--color-text-secondary);
                margin: var(--spacing-xs) 0;
            }

            /* Article tags */
            div.article-tags {
                display: flex;
                flex-wrap: wrap;
                align-items: center;
                gap: var(--spacing-xs);
                margin: var(--spacing-sm) 0;

                span.article-tags-label {
                    font-size: 0.875rem;
                    color: var(--color-text-secondary);
                    font-weight: 500;
                }

                button.article-tag-button {
                    background-color: var(--color-bg-tertiary);
                    color: var(--color-text-primary);
                    border: 1px solid var(--color-border);
                    border-radius: 12px;
                    padding: var(--spacing-xs) var(--spacing-sm);
                    font-family: var(--font-sans);
                    font-size: 0.8rem;
                    font-weight: 500;
                    cursor: pointer;
                    transition: all 0.2s ease;
                    white-space: nowrap;

                    &:hover {
                        background-color: var(--color-accent);
                        border-color: var(--color-accent);
                        color: var(--color-bg-primary);
                        transform: scale(1.05);
                    }

                    &:active {
                        transform: scale(0.98);
                    }
                }
            }

            /* Details/Summary for article content */
            div.feed-article-body {
                margin-top: var(--spacing-md);
                border-top: 1px solid var(--color-border);
                padding-top: var(--spacing-md);

                button.toggle-article-summary-button {
                    cursor: pointer;
                    font-weight: 600;
                    color: var(--color-accent);
                    background: none;
                    border: none;
                    padding: var(--spacing-sm) 0;
                    font-family: var(--font-sans);
                    font-size: 0.95rem;
                    text-align: left;
                    transition: color 0.2s ease;
                    user-select: none;

                    &:hover {
                        color: var(--color-accent-hover);
                    }
                }

                /* Article content area */
                .feed-article-summary {
                    display: block;
                    margin-top: var(--spacing-md);
                    padding: var(--spacing-md);
                    background-color: var(--color-bg-tertiary);
                    border-radius: 4px;
                    max-width: 100%;
                    overflow-x: auto;

                    /* Typography for article content */
                    font-size: 0.95rem;
                    line-height: 1.7;


                    /* Style content within sanitized HTML */
                    p {
                        margin-bottom: var(--spacing-md);

                        &:last-child {
                            margin-bottom: 0;
                        }
                    }

                    a {
                        color: var(--color-link-unvisited);
                        text-decoration: underline;

                        &:visited {
                            color: var(--color-link-visited);
                        }

                        &:hover {
                            color: var(--color-link-hover);
                        }
                    }

                    img {
                        max-width: 100%;
                        height: auto;
                        border-radius: 4px;
                        margin: var(--spacing-md) 0;
                    }

                    code {
                        font-family: var(--font-mono);
                        font-size: 0.9em;
                        background-color: var(--color-bg-primary);
                        padding: 0.2em 0.4em;
                        border-radius: 3px;
                        color: var(--color-success);
                    }

                    pre {
                        background-color: var(--color-bg-primary);
                        padding: var(--spacing-md);
                        border-radius: 4px;
                        overflow-x: auto;
                        margin: var(--spacing-md) 0;

                        code {
                            background-color: transparent;
                            padding: 0;
                        }
                    }

                    blockquote {
                        border-left: 3px solid var(--color-accent);
                        padding-left: var(--spacing-md);
                        margin: var(--spacing-md) 0;
                        color: var(--color-text-secondary);
                        font-style: italic;
                    }

                    ul,
                    ol {
                        margin: var(--spacing-md) 0;
                        padding-left: var(--spacing-lg);
                    }

                    li {
                        margin-bottom: var(--spacing-xs);
                    }

                    h1,
                    h2,
                    h3,
                    h4,
                    h5,
                    h6 {
                        margin-top: var(--spacing-lg);
                        margin-bottom: var(--spacing-sm);
                        color: var(--color-text-primary);
                        font-weight: 600;

                        &:first-child {
                            margin-top: 0;
                        }
                    }
                }
            }
        }
    }
}

/* River Filter Styles */
section.river-controls {
    background-color: var(--color-bg-secondary);
    border: 1px solid var(--color-border);
    border-radius: 8px;
    padding: var(--spacing-md);
    margin-bottom: var(--spacing-sm);
    max-width: var(--article-max-width);
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: var(--spacing-sm);
    font-size: 0.95rem;
    color: var(--color-text-secondary);

    button.clear-all-tags {
        background-color: var(--color-bg-tertiary);
        color: var(--color-text-primary);
        border: 1px solid var(--color-border);
        border-radius: 6px;
        padding: var(--spacing-xs) var(--spacing-md);
        font-family: var(--font-sans);
        font-size: 0.875rem;
        font-weight: 500;
        cursor: pointer;
        transition: all 0.2s ease;

        &:hover {
            background-color: var(--color-accent);
            border-color: var(--color-accent);
            color: var(--color-bg-primary);
        }

        &:active {
            transform: scale(0.96);
        }
    }


    button.refresh-river-button {
        background-color: var(--color-accent);
        color: var(--color-bg-primary);
        border: 1px solid var(--color-accent);
        border-radius: 6px;
        padding: var(--spacing-sm) var(--spacing-lg);
        font-family: var(--font-sans);
        font-size: 0.95rem;
        font-weight: 600;
        cursor: pointer;
        transition: all 0.2s ease;
        max-width: var(--article-max-width);

        &:hover:not(:disabled) {
            background-color: var(--color-accent-hover);
            border-color: var(--color-accent-hover);
            transform: translateY(-1px);
            box-shadow: 0 2px 8px rgba(88, 166, 255, 0.3);
        }

        &:active:not(:disabled) {
            transform: translateY(0);
        }

        &:disabled {
            background-color: var(--color-bg-tertiary);
            border-color: var(--color-border);
            color: var(--color-text-secondary);
            cursor: not-allowed;
            opacity: 0.6;
        }
    }
}

button.tag-filter-button {
    background-color: var(--color-bg-tertiary);
    color: var(--color-text-secondary);
    border: 1px solid var(--color-border);
    border-radius: 16px;
    padding: var(--spacing-xs) var(--spacing-md);
    font-family: var(--font-sans);
    font-size: 0.875rem;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.2s ease;
    white-space: nowrap;

    &:hover {
        background-color: var(--color-bg-primary);
        border-color: var(--color-accent);
        color: var(--color-accent);
    }

    &.selected {
        background-color: var(--color-accent);
        border-color: var(--color-accent);
        color: var(--color-bg-primary);
        font-weight: 600;

        &:hover {
            background-color: var(--color-accent-hover);
            border-color: var(--color-accent-hover);
        }
    }

    &:active {
        transform: scale(0.96);
    }
}

/* Scroll to Top Button */
button.scroll-to-top-button {
    position: fixed;
    bottom: var(--spacing-xl);
    /* On wide screens: positioned just to the right of article content
       On narrow screens: positioned at spacing-xl from viewport edge */
    right: max(var(--spacing-xl), calc((100vw - var(--article-max-width) - var(--sidebar-width)) - 200px));
    background-color: var(--color-accent);
    color: var(--color-bg-primary);
    border: 2px solid var(--color-accent);
    border-radius: 8px;
    padding: var(--spacing-md) var(--spacing-lg);
    font-family: var(--font-sans);
    font-size: 0.95rem;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.2s ease;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.3);
    z-index: 100;

    &:hover {
        background-color: var(--color-accent-hover);
        border-color: var(--color-accent-hover);
        transform: translateY(-2px);
        box-shadow: 0 6px 16px rgba(88, 166, 255, 0.4);
    }

    &:active {
        transform: translateY(0);
        box-shadow: 0 2px 8px rgba(0, 0, 0, 0.3);
    }
}


/* Organise Feeds Page Styles */
section.organise-tags-section,
section.add-feed-section,
section.import-opml-section,
section.your-subscriptions-section {
    background-color: var(--color-bg-secondary);
    border: 1px solid var(--color-border);
    border-radius: 8px;
    padding: var(--spacing-lg);
    margin-bottom: var(--spacing-xl);
    max-width: var(--content-max-width);

    h3 {
        font-size: 1.5rem;
        font-weight: 600;
        color: var(--color-text-primary);
        margin-bottom: var(--spacing-lg);
        padding-bottom: var(--spacing-sm);
        border-bottom: 1px solid var(--color-border);

        &::before {
            content: '# ';
            font-family: var(--font-mono);
            color: var(--color-accent);
        }
    }
}

/* Organise Tags Section */
section.organise-tags-section {
    display: flex;
    flex-wrap: wrap;
    gap: var(--spacing-lg);

    h3 {
        flex-basis: 100%;
    }

    >ul {
        flex: 1;
        min-width: 300px;
        list-style: none;
        display: flex;
        flex-wrap: wrap;
        gap: var(--spacing-sm);
        align-content: flex-start;

        li {
            background-color: var(--color-bg-tertiary);
            border: 1px solid var(--color-border);
            border-radius: 6px;
            padding: var(--spacing-sm) var(--spacing-md);
            display: flex;
            align-items: center;
            gap: var(--spacing-sm);

            span {
                font-size: 0.95rem;
                font-weight: 500;
            }

            button {
                background: transparent;
                border: none;
                cursor: pointer;
                font-size: 1rem;
                padding: 0;
                line-height: 1;
                transition: transform 0.2s ease;

                &:hover {
                    transform: scale(1.2);
                }

                &:active {
                    transform: scale(0.9);
                }
            }
        }
    }

    form {
        flex: 1;
        min-width: 300px;
        background-color: var(--color-bg-tertiary);
        border: 1px solid var(--color-border);
        border-radius: 6px;
        padding: var(--spacing-lg);
        align-self: flex-start;

        >div {
            margin-bottom: var(--spacing-md);

            &:last-of-type {
                margin-bottom: var(--spacing-lg);
            }

            label {
                display: block;
                font-size: 0.95rem;
                font-weight: 500;
                margin-bottom: var(--spacing-xs);
                color: var(--color-text-primary);

                &.required::after {
                    content: ' *';
                    color: var(--color-accent);
                }
            }

            input {
                display: block;
                width: 100%;
                margin-top: var(--spacing-xs);
                padding: var(--spacing-sm) var(--spacing-md);
                background-color: var(--color-bg-primary);
                border: 1px solid var(--color-border);
                border-radius: 6px;
                color: var(--color-text-primary);
                font-family: var(--font-sans);
                font-size: 0.95rem;
                transition: border-color 0.2s ease;

                &:focus {
                    outline: none;
                    border-color: var(--color-accent);
                }

                &::placeholder {
                    color: var(--color-text-secondary);
                }
            }
        }

        button[type="submit"] {
            background-color: var(--color-accent);
            color: var(--color-bg-primary);
            border: 1px solid var(--color-accent);
            border-radius: 6px;
            padding: var(--spacing-sm) var(--spacing-lg);
            font-family: var(--font-sans);
            font-size: 0.95rem;
            font-weight: 600;
            cursor: pointer;
            transition: all 0.2s ease;

            &:hover:not(:disabled) {
                background-color: var(--color-accent-hover);
                border-color: var(--color-accent-hover);
                transform: translateY(-1px);
            }

            &:active:not(:disabled) {
                transform: translateY(0);
            }

            &:disabled {
                background-color: var(--color-bg-tertiary);
                border-color: var(--color-border);
                color: var(--color-text-secondary);
                cursor: not-allowed;
                opacity: 0.6;
            }
        }
    }
}

/* Add Feed Section */
section.add-feed-section {
    p {
        margin-bottom: var(--spacing-md);
        color: var(--color-text-secondary);
    }

    form {
        >div {
            margin-bottom: var(--spacing-md);

            label {
                display: block;
                font-size: 0.95rem;
                font-weight: 500;
                color: var(--color-text-primary);
                margin-bottom: var(--spacing-xs);
            }

            input[type="url"] {
                display: block;
                width: 100%;
                max-width: 500px;
                margin-top: var(--spacing-xs);
                padding: var(--spacing-sm) var(--spacing-md);
                background-color: var(--color-bg-primary);
                border: 1px solid var(--color-border);
                border-radius: 6px;
                color: var(--color-text-primary);
                font-family: var(--font-sans);
                font-size: 0.95rem;
                transition: border-color 0.2s ease;

                &:focus {
                    outline: none;
                    border-color: var(--color-accent);
                }

                &::placeholder {
                    color: var(--color-text-secondary);
                }

                &:disabled {
                    opacity: 0.6;
                    cursor: not-allowed;
                }
            }
        }

        button[type="submit"] {
            background-color: var(--color-accent);
            color: var(--color-bg-primary);
            border: 1px solid var(--color-accent);
            border-radius: 6px;
            padding: var(--spacing-sm) var(--spacing-lg);
            font-family: var(--font-sans);
            font-size: 0.95rem;
            font-weight: 600;
            cursor: pointer;
            transition: all 0.2s ease;

            &:hover:not(:disabled) {
                background-color: var(--color-accent-hover);
                border-color: var(--color-accent-hover);
                transform: translateY(-1px);
            }

            &:active:not(:disabled) {
                transform: translateY(0);
            }

            &:disabled {
                background-color: var(--color-bg-tertiary);
                border-color: var(--color-border);
                color: var(--color-text-secondary);
                cursor: not-allowed;
                opacity: 0.6;
            }
        }
    }

    div.success-message {
        background-color: var(--color-bg-tertiary);
        border: 1px solid var(--color-success);
        border-radius: 6px;
        padding: var(--spacing-md);
        margin-top: var(--spacing-lg);

        h3 {
            font-size: 1.125rem;
            color: var(--color-success);
            margin-bottom: var(--spacing-md);
            padding-bottom: 0;
            border-bottom: none;

            &::before {
                content: '✓ ';
                font-family: var(--font-sans);
            }
        }

        dl {
            background-color: transparent;
            border: none;
            padding: 0;
            margin: 0;

            dt {
                font-size: 0.875rem;
                margin-top: var(--spacing-sm);

                &:first-child {
                    margin-top: 0;
                }
            }

            dd {
                font-size: 0.95rem;
                margin-bottom: var(--spacing-sm);

                a {
                    color: var(--color-accent);
                    text-decoration: none;

                    &:hover {
                        color: var(--color-accent-hover);
                        text-decoration: underline;
                    }
                }
            }
        }
    }
}

/* Import OPML Section */
section.import-opml-section {
    p {
        margin-bottom: var(--spacing-md);
        color: var(--color-text-secondary);
    }

    form {
        >div {
            margin-bottom: var(--spacing-md);

            label {
                display: block;
                font-size: 0.95rem;
                font-weight: 500;
                color: var(--color-text-primary);
                margin-bottom: var(--spacing-xs);
            }

            input[type="file"] {
                display: block;
                margin-top: var(--spacing-xs);
                margin-bottom: var(--spacing-xs);
                padding: var(--spacing-sm);
                color: var(--color-text-primary);
                cursor: pointer;
            }
        }

        button[type="submit"] {
            background-color: var(--color-accent);
            color: var(--color-bg-primary);
            border: 1px solid var(--color-accent);
            border-radius: 6px;
            padding: var(--spacing-sm) var(--spacing-lg);
            font-family: var(--font-sans);
            font-size: 0.95rem;
            font-weight: 600;
            cursor: pointer;
            transition: all 0.2s ease;

            &:hover:not(:disabled) {
                background-color: var(--color-accent-hover);
                border-color: var(--color-accent-hover);
                transform: translateY(-1px);
            }

            &:active:not(:disabled) {
                transform: translateY(0);
            }

            &:disabled {
                background-color: var(--color-bg-tertiary);
                border-color: var(--color-border);
                color: var(--color-text-secondary);
                cursor: not-allowed;
                opacity: 0.6;
            }
        }
    }

    p.success {
        color: #4caf50;
        font-weight: 500;
        margin-top: var(--spacing-md);
    }

    p.error {
        color: #dc3545;
        font-weight: 500;
        margin-top: var(--spacing-md);
    }
}

/* Subscription Filters */
div.subscription-filters {
    background-color: var(--color-bg-tertiary);
    border: 1px solid var(--color-border);
    border-radius: 8px;
    padding: var(--spacing-md);
    margin-bottom: var(--spacing-lg);

    >div {
        margin-bottom: var(--spacing-md);

        &:last-child {
            margin-bottom: 0;
        }

        label {
            font-size: 0.95rem;
            color: var(--color-text-secondary);
            font-weight: 500;

            input[type="text"] {
                margin-left: var(--spacing-sm);
                padding: var(--spacing-xs) var(--spacing-md);
                background-color: var(--color-bg-primary);
                border: 1px solid var(--color-border);
                border-radius: 6px;
                color: var(--color-text-primary);
                font-family: var(--font-sans);
                font-size: 0.95rem;
                transition: border-color 0.2s ease;
                min-width: 250px;

                &:focus {
                    outline: none;
                    border-color: var(--color-accent);
                }

                &::placeholder {
                    color: var(--color-text-secondary);
                }
            }
        }
    }

    div.tag-filters {
        display: flex;
        flex-wrap: wrap;
        align-items: center;
        gap: var(--spacing-sm);

        strong {
            color: var(--color-text-secondary);
            font-size: 0.95rem;
        }
    }

    button.clear-filters-button {
        background-color: var(--color-bg-secondary);
        color: var(--color-text-primary);
        border: 1px solid var(--color-border);
        border-radius: 6px;
        padding: var(--spacing-xs) var(--spacing-md);
        font-family: var(--font-sans);
        font-size: 0.875rem;
        font-weight: 500;
        cursor: pointer;
        transition: all 0.2s ease;

        &:hover {
            background-color: var(--color-accent);
            border-color: var(--color-accent);
            color: var(--color-bg-primary);
        }

        &:active {
            transform: scale(0.96);
        }
    }
}

/* Subscription Items */
article.subscription-item {
    background-color: var(--color-bg-tertiary);
    border: 1px solid var(--color-border);
    border-radius: 8px;
    padding: var(--spacing-lg);
    margin-bottom: var(--spacing-lg);
    transition: border-color 0.2s ease;

    &:hover {
        border-color: var(--color-accent);
    }

    h4 {
        font-size: 1.25rem;
        font-weight: 600;
        color: var(--color-text-primary);
        margin-bottom: var(--spacing-md);
    }

    div.feed-status {
        margin-bottom: var(--spacing-sm);

        div.last-article-info {
            font-size: 0.875rem;
            color: var(--color-text-secondary);

            strong {
                font-weight: 600;
            }
        }
    }

    a.article-meta {
        display: inline-block;
        font-size: 0.95rem;
        color: var(--color-accent);
        text-decoration: none;
        margin-bottom: var(--spacing-md);
        transition: color 0.2s ease;

        &:hover {
            color: var(--color-accent-hover);
            text-decoration: underline;
        }
    }

    >div {
        margin-bottom: var(--spacing-md);

        strong {
            font-size: 0.95rem;
            color: var(--color-text-secondary);
            font-weight: 600;
        }

        ul {
            list-style: none;
            display: flex;
            flex-wrap: wrap;
            gap: var(--spacing-sm);
            margin-top: var(--spacing-xs);

            li {
                background-color: var(--color-bg-secondary);
                border: 1px solid var(--color-border);
                border-radius: 6px;
                padding: var(--spacing-xs) var(--spacing-sm);
                display: flex;
                align-items: center;
                gap: var(--spacing-sm);

                span {
                    font-size: 0.875rem;
                    font-weight: 500;
                }

                button {
                    background: transparent;
                    border: none;
                    cursor: pointer;
                    font-size: 0.95rem;
                    padding: 0;
                    line-height: 1;
                    transition: transform 0.2s ease;

                    &:hover {
                        transform: scale(1.2);
                    }

                    &:active {
                        transform: scale(0.9);
                    }
                }
            }
        }

        label {
            font-size: 0.95rem;
            color: var(--color-text-secondary);
            font-weight: 500;

            select {
                margin-left: var(--spacing-sm);
                padding: var(--spacing-xs) var(--spacing-md);
                background-color: var(--color-bg-primary);
                border: 1px solid var(--color-border);
                border-radius: 6px;
                color: var(--color-text-primary);
                font-family: var(--font-sans);
                font-size: 0.95rem;
                cursor: pointer;
                transition: border-color 0.2s ease;

                &:focus {
                    outline: none;
                    border-color: var(--color-accent);
                }
            }
        }
    }

    >a {
        display: inline-block;
        font-size: 0.95rem;
        color: var(--color-accent);
        text-decoration: none;
        margin-right: var(--spacing-md);
        margin-bottom: var(--spacing-sm);
        transition: color 0.2s ease;

        &:hover {
            color: var(--color-accent-hover);
            text-decoration: underline;
        }
    }

    button.unsubscribe-button {
        background-color: transparent;
        color: var(--color-text-secondary);
        border: 1px solid var(--color-border);
        border-radius: 6px;
        padding: var(--spacing-xs) var(--spacing-md);
        font-family: var(--font-sans);
        font-size: 0.875rem;
        font-weight: 500;
        cursor: pointer;
        transition: all 0.2s ease;

        &:hover {
            background-color: #dc3545;
            border-color: #dc3545;
            color: #fff;
        }

        &:active {
            transform: scale(0.96);
        }
    }
}

/* Profile Page Styles */
dl {
    background-color: var(--color-bg-secondary);
    border: 1px solid var(--color-border);
    border-radius: 8px;
    padding: var(--spacing-lg);
    max-width: var(--content-max-width);

    dt {
        font-size: 0.95rem;
        font-weight: 600;
        color: var(--color-text-secondary);
        margin-top: var(--spacing-lg);
        margin-bottom: var(--spacing-sm);

        &:first-child {
            margin-top: 0;
        }
    }

    dd {
        font-size: 1rem;
        color: var(--color-text-primary);
        margin-left: 0;
        margin-bottom: 0;
        display: flex;
        align-items: center;
        gap: var(--spacing-md);

        button.edit-profile-button,
        button.change-password-button {
            background-color: var(--color-bg-tertiary);
            color: var(--color-text-primary);
            border: 1px solid var(--color-border);
            border-radius: 6px;
            padding: var(--spacing-xs) var(--spacing-md);
            font-family: var(--font-sans);
            font-size: 0.875rem;
            font-weight: 500;
            cursor: pointer;
            transition: all 0.2s ease;

            &:hover {
                background-color: var(--color-accent);
                border-color: var(--color-accent);
                color: var(--color-bg-primary);
                transform: translateY(-1px);
            }

            &:active {
                transform: translateY(0);
            }
        }

        button.logout-button {
            background-color: transparent;
            color: var(--color-text-secondary);
            border: 1px solid var(--color-border);
            border-radius: 6px;
            padding: var(--spacing-xs) var(--spacing-md);
            font-family: var(--font-sans);
            font-size: 0.875rem;
            font-weight: 500;
            cursor: pointer;
            transition: all 0.2s ease;

            &:hover {
                background-color: #dc3545;
                border-color: #dc3545;
                color: #fff;
                transform: translateY(-1px);
            }

            &:active {
                transform: translateY(0);
            }
        }

        form {
            width: 100%;
            background-color: var(--color-bg-tertiary);
            border: 1px solid var(--color-border);
            border-radius: 6px;
            padding: var(--spacing-md);

            >div {
                margin-bottom: var(--spacing-md);

                &:last-of-type {
                    margin-bottom: var(--spacing-md);
                }
            }

            label.form-label {
                display: block;
                font-size: 0.95rem;
                font-weight: 500;
                color: var(--color-text-primary);
                margin-bottom: var(--spacing-xs);

                input {
                    display: block;
                    width: 100%;
                    margin-top: var(--spacing-xs);
                    padding: var(--spacing-sm) var(--spacing-md);
                    background-color: var(--color-bg-primary);
                    border: 1px solid var(--color-border);
                    border-radius: 6px;
                    color: var(--color-text-primary);
                    font-family: var(--font-sans);
                    font-size: 0.95rem;
                    transition: border-color 0.2s ease;

                    &:focus {
                        outline: none;
                        border-color: var(--color-accent);
                    }

                    &::placeholder {
                        color: var(--color-text-secondary);
                    }
                }
            }

            button[type="button"],
            button[type="submit"] {
                background-color: var(--color-accent);
                color: var(--color-bg-primary);
                border: 1px solid var(--color-accent);
                border-radius: 6px;
                padding: var(--spacing-sm) var(--spacing-lg);
                font-family: var(--font-sans);
                font-size: 0.95rem;
                font-weight: 600;
                cursor: pointer;
                transition: all 0.2s ease;
                margin-right: var(--spacing-sm);

                &:hover:not(:disabled) {
                    background-color: var(--color-accent-hover);
                    border-color: var(--color-accent-hover);
                    transform: translateY(-1px);
                }

                &:active:not(:disabled) {
                    transform: translateY(0);
                }

                &:disabled {
                    background-color: var(--color-bg-tertiary);
                    border-color: var(--color-border);
                    color: var(--color-text-secondary);
                    cursor: not-allowed;
                    opacity: 0.6;
                }
            }

            button[type="button"] {
                background-color: var(--color-bg-secondary);
                color: var(--color-text-primary);
                border-color: var(--color-border);

                &:hover:not(:disabled) {
                    background-color: var(--color-bg-tertiary);
                    border-color: var(--color-accent);
                    color: var(--color-accent);
                }
            }
        }
    }
}

/* Mobile responsive design */
@media (max-width: 768px) {
    body {
        flex-direction: column;
    }

    aside {
        position: static;
        width: 100%;
        height: auto;
        border-right: none;
        border-bottom: 1px solid var(--color-border);
        padding: var(--spacing-md);

        nav ul {
            display: flex;
            flex-wrap: wrap;
            gap: var(--spacing-xs);

            li {
                margin-bottom: 0;

                a {
                    font-size: 0.875rem;
                    padding: var(--spacing-xs) var(--spacing-sm);
                }
            }
        }
    }

    main {
        margin-left: 0;
        width: 100%;
        padding: var(--spacing-md);

        .page-header {
            margin-bottom: var(--spacing-lg);
            padding-bottom: var(--spacing-md);

            h1 {
                font-size: 1.5rem;
            }
        }
    }

    /* Mobile article adjustments */
    ul.articles {
        li {
            article.feed-article {
                padding: var(--spacing-md);

                h3 {
                    font-size: 1.125rem;
                }

                div.feed-article-body {
                    .feed-article-summary {
                        padding: var(--spacing-sm);
                        font-size: 0.9rem;
                    }
                }
            }
        }
    }

    /* Mobile organise feeds adjustments */
    section.organise-tags-section,
    section.add-feed-section,
    section.import-opml-section,
    section.your-subscriptions-section {
        padding: var(--spacing-md);

        h3 {
            font-size: 1.25rem;
        }
    }

    div.subscription-filters {
        >div label input[type="text"] {
            display: block;
            margin-left: 0;
            margin-top: var(--spacing-xs);
            min-width: 100%;
        }
    }

    article.subscription-item {
        padding: var(--spacing-md);

        h4 {
            font-size: 1.125rem;
        }
    }

    /* Mobile scroll to top button adjustments */
    button.scroll-to-top-button {
        bottom: var(--spacing-md);
        right: var(--spacing-md);
        padding: var(--spacing-sm) var(--spacing-md);
        font-size: 0.875rem;
    }

    /* Mobile profile page adjustments */
    dl {
        padding: var(--spacing-md);

        dd {
            flex-direction: column;
            align-items: flex-start;

            form {

                button[type="button"],
                button[type="submit"] {
                    width: 100%;
                    margin-right: 0;
                    margin-bottom: var(--spacing-sm);

                    &:last-child {
                        margin-bottom: 0;
                    }
                }
            }
        }
    }
}