/* ============================================================
   Shared UI primitives reused across hero/about/demo:
   - .browser-bar mockup
   - .lightbox overlay for full-size screenshot viewing
   ============================================================ */

/* --- Browser-bar mockup --- */
.browser-bar {
    display: flex;
    align-items: center;
    gap: 0.4rem;
    padding: 0.6rem 0.9rem;
    background: #1f2937;
    color: rgba(255, 255, 255, 0.85);
    font-size: 0.78rem;
}

.browser-dot {
    width: 10px;
    height: 10px;
    border-radius: 50%;
    display: inline-block;
}

.dot-red    { background: #ff5f56; }
.dot-yellow { background: #ffbd2e; }
.dot-green  { background: #27c93f; }

.browser-url {
    margin-left: 0.6rem;
    padding: 0.15rem 0.6rem;
    background: rgba(255, 255, 255, 0.08);
    border-radius: 6px;
    font-family: 'JetBrains Mono', ui-monospace, monospace;
    letter-spacing: 0.01em;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

/* --- Lightbox --- */
.lightbox {
    position: fixed;
    inset: 0;
    background: rgba(15, 23, 42, 0.85);
    display: none;
    align-items: center;
    justify-content: center;
    z-index: 2000;
    padding: 2rem;
}

.lightbox.open { display: flex; }

.lightbox-img {
    max-width: 96vw;
    max-height: 92vh;
    border-radius: 12px;
    box-shadow: 0 30px 70px rgba(0, 0, 0, 0.5);
}

.lightbox-close {
    position: absolute;
    top: 1rem;
    right: 1.25rem;
    width: 44px;
    height: 44px;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.15);
    color: white;
    border: none;
    font-size: 1.6rem;
    line-height: 1;
    cursor: pointer;
    transition: background 0.2s ease;
}

.lightbox-close:hover { background: rgba(255, 255, 255, 0.3); }

/* --- Mobile nav hamburger toggle --- */
.nav-toggle {
    display: none;
    width: 40px;
    height: 40px;
    background: transparent;
    border: none;
    cursor: pointer;
    padding: 0;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    gap: 5px;
}

.nav-toggle span {
    width: 24px;
    height: 2px;
    background: var(--text-dark);
    border-radius: 2px;
    transition: transform 0.3s ease, opacity 0.3s ease;
}

.nav-toggle[aria-expanded="true"] span:nth-child(1) {
    transform: translateY(7px) rotate(45deg);
}

.nav-toggle[aria-expanded="true"] span:nth-child(2) {
    opacity: 0;
}

.nav-toggle[aria-expanded="true"] span:nth-child(3) {
    transform: translateY(-7px) rotate(-45deg);
}

@media (max-width: 768px) {
    .nav-toggle { display: flex; }

    .nav-menu {
        display: none !important;
        position: absolute;
        top: 100%;
        left: 0;
        right: 0;
        background: rgba(255, 255, 255, 0.98);
        backdrop-filter: blur(10px);
        flex-direction: column;
        gap: 0 !important;
        padding: 1rem 1.25rem;
        box-shadow: 0 6px 20px rgba(15, 23, 42, 0.08);
        border-top: 1px solid var(--border-color);
    }

    .nav-menu.is-open {
        display: flex !important;
    }

    .nav-menu li {
        width: 100%;
    }

    .nav-menu a {
        display: block;
        padding: 0.75rem 0;
        border-bottom: 1px solid var(--border-color);
    }

    .nav-menu li:last-child a {
        border-bottom: none;
    }
}