:root {
    --win-grey: #C0C0C0;
    --win-blue: #000080;
    --win-teal: #008080;
    --win-white: #FFFFFF;
    --win-dark: #808080;
    --border-light: #dfdfdf;
    --border-dark: #808080;
}

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

.body {
    font-family: 'Tahoma', 'MS Sans Serif', sans-serif;
    background: var(--win-teal);
    height: 100vh;
    overflow: hidden;
    cursor: default;
    color: #000;
}

/* ═══════════════════════════════════════════
   DESKTOP ENVIRONMENT
   ═══════════════════════════════════════════ */
.desktop-env {
    display: flex;
    flex-direction: column;
    height: 100vh;
    padding: 10px;
    background: var(--win-teal);
}

/* WIN95 BROWSER CHROME */
.browser-window {
    flex-grow: 1;
    background: var(--win-grey);
    border: 2px solid;
    border-color: var(--border-light) var(--border-dark) var(--border-dark) var(--border-light);
    box-shadow: 1px 1px 0 #000;
    display: flex;
    flex-direction: column;
    overflow: hidden;
}

.title-bar {
    background: linear-gradient(90deg, var(--win-blue), #1084d0);
    padding: 3px 5px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    color: white;
    font-weight: bold;
    font-size: 0.9rem;
}

.title-btn-group { display: flex; gap: 2px; }
.title-btn {
    padding: 1px 5px;
    border: 2px solid;
    border-color: var(--border-light) var(--border-dark) var(--border-dark) var(--border-light);
    background: var(--win-grey);
    font-size: 0.75rem;
    cursor: pointer;
    user-select: none;
    line-height: 1;
}
.title-btn:active {
    border-color: var(--border-dark) var(--border-light) var(--border-light) var(--border-dark);
}

.toolbar {
    border-bottom: 2px solid var(--border-dark);
    padding: 5px;
    display: flex;
    flex-direction: column;
    gap: 5px;
}

.button-row { display: flex; gap: 5px; align-items: center; }

.nav-btn {
    padding: 4px 8px;
    border: 2px solid;
    border-color: var(--border-light) var(--border-dark) var(--border-dark) var(--border-light);
    background: var(--win-grey);
    font-size: 0.8rem;
    cursor: pointer;
    user-select: none;
    display: flex;
    align-items: center;
    gap: 4px;
}
.nav-btn:active {
    border-color: var(--border-dark) var(--border-light) var(--border-light) var(--border-dark);
    padding: 5px 7px 3px 9px;
}
.nav-btn.disabled { opacity: 0.5; pointer-events: none; }

.url-bar-container {
    display: flex;
    align-items: center;
    gap: 5px;
    padding: 2px 0;
}
.url-label { font-size: 0.8rem; }
.url-bar {
    flex-grow: 1;
    background: #fff;
    border: 2px solid;
    border-color: var(--border-dark) var(--border-light) var(--border-light) var(--border-dark);
    padding: 3px 8px;
    font-family: 'Courier New', monospace;
    font-size: 0.85rem;
    overflow: hidden;
    white-space: nowrap;
}

/* CONTENT AREA */
.browser-content { display: flex; flex-grow: 1; overflow: hidden; background: #fff; }

/* FAVORITES SIDEBAR */
.bookmarks-sidebar {
    width: 230px;
    min-width: 230px;
    background: var(--win-grey);
    border-right: 2px solid var(--border-dark);
    padding: 10px;
    display: flex;
    flex-direction: column;
    gap: 4px;
    overflow-y: auto;
}

.sidebar-header {
    font-size: 0.75rem;
    font-weight: bold;
    border-bottom: 1px solid var(--border-dark);
    margin-bottom: 5px;
    padding-bottom: 3px;
}

.sidebar-divider {
    height: 1px;
    background: var(--border-dark);
    margin: 8px 0;
    border-bottom: 1px solid var(--border-light);
}

.sidebar-section-label {
    font-size: 0.65rem;
    font-weight: bold;
    color: #555;
    letter-spacing: 1px;
    padding: 4px 5px 2px;
}

.bookmark-item {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 5px;
    text-decoration: none;
    color: #000;
    font-size: 0.8rem;
    border: 1px solid transparent;
    cursor: pointer;
}
.bookmark-item:hover {
    background: var(--win-blue);
    color: white;
    border: 1px dotted #fff;
}
.bookmark-item.active {
    background: var(--win-blue);
    color: white;
}

.bookmark-icon {
    width: 16px;
    height: 16px;
    min-width: 16px;
    border: 1px solid #000;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 9px;
}
.icon-page { background: #ffffcc; }
.icon-lighthouse { background: #ffe0a0; }
.icon-folder { background: #ffcc66; }

/* VIEWPORT - The 'Inner Window' where the content lives */
.viewport { 
    flex-grow: 1; 
    position: relative; 
    background: #fff; /* Changed from grey to white for better readability */
    /* The double border creates that classic 'inset' look */
    border: 2px solid;
    border-color: var(--border-dark) var(--border-light) var(--border-light) var(--border-dark);
}

.viewport iframe {
    width: 100%;
    height: 100%;
    border: none;
    background: #fff;
    display: block; /* Removes tiny extra space at the bottom */
}

/* Updated Loader Overlay to match the Inset Viewport */
#loader-overlay {
    position: absolute;
    inset: 0;
    background: var(--win-grey); /* Matches the browser chrome background */
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    z-index: 100;
}

.loading-box {
    background: var(--win-grey);
    border: 2px solid;
    border-color: var(--border-light) var(--border-dark) var(--border-dark) var(--border-light);
    padding: 20px 30px;
    text-align: center;
    max-width: 300px;
}
.loading-title {
    font-weight: bold;
    margin-bottom: 10px;
}
.loading-status {
    font-size: 0.8rem;
    color: #333;
}
.loading-bar-track {
    height: 16px;
    background: #fff;
    border: 2px solid;
    border-color: var(--border-dark) var(--border-light) var(--border-light) var(--border-dark);
    margin-top: 10px;
    overflow: hidden;
}
.loading-bar-fill {
    height: 100%;
    width: 0%;
    background: var(--win-blue);
    transition: width 0.4s ease;
}

/* STATUS BAR */
.status-bar {
    background: var(--win-grey);
    border-top: 2px solid var(--border-dark);
    padding: 2px 5px;
    font-size: 0.75rem;
    display: flex;
    gap: 4px;
}
.status-field {
    border: 1px solid;
    border-color: var(--border-dark) var(--border-light) var(--border-light) var(--border-dark);
    padding: 2px 10px;
}
.status-field:first-child { flex-grow: 2; }
.status-field:nth-child(2) { flex-grow: 1; }
.status-field:last-child { width: 100px; text-align: center; }

/* ═══════════════════════════════════════════
   RESPONSIVE
   ═══════════════════════════════════════════ */
@media (max-width: 700px) {
    .bookmarks-sidebar { width: 180px; min-width: 180px; }
    .bookmark-item { font-size: 0.7rem; }
}