/* ─────────────────────────────────────────────
   responsive.css — Mobile and small-screen breakpoints
   ───────────────────────────────────────────── */

/* ── ≤ 768px ────────────────────────────────── */
@media (max-width: 768px) {
    .sidebar {
        display: none;
        position: fixed;
        top: 32px;
        left: 40px;
        bottom: 22px;
        z-index: 500;
        box-shadow: 4px 0 24px rgba(0, 0, 0, 0.4);
    }

    .hide-titlebar .sidebar {
        top: 0;
    }

    .sidebar.open {
        display: flex;
    }

    .activity-bar {
        width: 40px;
    }

    .act-btn {
        width: 32px;
        height: 32px;
    }

    .act-btn svg {
        width: 18px;
        height: 18px;
    }

    .workspace {
        height: calc(100vh - 32px - 22px);
    }

    .hide-titlebar .workspace {
        height: calc(100vh - 22px);
    }

    .panel {
        padding: 16px 0 32px;
    }

    .name-line {
        font-size: 24px;
    }

    .skill-grid {
        grid-template-columns: 1fr;
    }

    .overlay-panel {
        width: calc(100vw - 16px);
        max-height: min(80vh, 480px);
    }

    .project-overlay-panel {
        width: calc(100vw - 16px);
        max-height: min(80vh, 480px);
    }

    .overlay {
        padding-top: 8vh;
    }

    .project-card {
        padding: 14px 16px;
    }

    .code-area {
        padding: 0 24px 0 38px;
    }
    .accent-line {
        left: 8px;
    }

    .window-controls {
        gap: 0;
    }

    .win-btn {
        width: 36px;
    }

    .status-item:not(#status-lang):nth-child(n + 4) {
        display: none;
    }

    #status-lang {
        display: inline;
    }
}

/* ── ≤ 480px ────────────────────────────────── */
@media (max-width: 480px) {
    .titlebar-title {
        font-size: 10px;
    }

    .activity-bar {
        width: 34px;
    }

    .act-btn {
        width: 28px;
        height: 28px;
    }

    .act-btn svg {
        width: 16px;
        height: 16px;
    }

    .win-btn {
        width: 30px;
        font-size: 10px;
    }

    .code-area {
        padding: 0 8px 0 30px;
        font-size: 12px;
    }
    .accent-line {
        left: 6px;
        width: 1.5px;
    }

    .project-card {
        padding: 10px 12px;
        margin: 10px 0;
    }

    .project-title {
        font-size: 13px;
    }

    .project-desc {
        font-size: 12px;
    }

    .skill-group {
        padding: 12px 14px;
    }

    .contact-link {
        font-size: 12px;
        padding: 8px 0 8px 12px;
    }

    .name-line {
        font-size: 20px;
    }

    .role-line {
        font-size: 12px;
    }

    .status-bar {
        font-size: 10px;
        padding: 0 6px;
        gap: 6px;
    }

    .overlay-panel {
        max-height: min(90vh, 400px);
    }

    .project-overlay-panel {
        width: calc(100vw - 8px);
        max-height: min(90vh, 400px);
    }

    .overlay {
        padding-top: 4vh;
    }

    .setting-row {
        padding: 8px 12px;
    }

    .setting-label {
        font-size: 12px;
    }

    .setting-desc {
        font-size: 10px;
    }

    .act-btn::after {
        display: none;
    }
}