/* RESET */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: system-ui, sans-serif;
}

/* TOP BAR */
.topbar {
    position: sticky;
    top: 0;
    height: 60px;
    background: #111827;
    color: white;
    display: flex;
    align-items: center;
    padding: 0 24px;
    z-index: 1000;
}

/* LAYOUT */
.layout {
    display: flex;
    min-height: calc(100vh - 60px);
}

/* SIDEBAR */
.sidebar {
    position: sticky;
    top: 60px;
    width: 220px;
    background: #1f2933;
    padding: 20px;
    height: calc(100vh - 60px);
}

.sidebar nav a {
    display: block;
    color: #d1d5db;
    text-decoration: none;
    padding: 10px;
    border-radius: 6px;
    margin-bottom: 8px;
}

.sidebar nav a.active,
.sidebar nav a:hover {
    background: #374151;
    color: white;
}

/* CONTENT */
.content {
    flex: 1;
    padding: 32px;
    background: #f9fafb;
}

/* TITLE */
.page-title {
    font-size: 28px;
    margin-bottom: 20px;
}

/* SEARCH */
.search-bar {
    width: 100%;
    padding: 12px;
    border-radius: 8px;
    border: 1px solid #d1d5db;
    margin-bottom: 12px;
}

/* CREATE BUTTON */
.create-btn {
    padding: 10px 16px;
    border-radius: 8px;
    border: none;
    background: #2563eb;
    color: white;
    font-weight: 600;
    cursor: pointer;
    margin-bottom: 24px;
}

.create-btn:hover {
    background: #1e40af;
}

/* TABS */
.tabs {
    display: flex;
    gap: 24px;
    margin-bottom: 6px;
}

.tab {
    background: none;
    border: none;
    font-size: 16px;
    padding-bottom: 8px;
    cursor: pointer;
    color: #6b7280;
}

.tab.active {
    color: #111827;
    font-weight: 600;
}

/* TAB UNDERLINE */
.tab-underline {
    height: 2px;
    background: #e5e7eb;
    margin-bottom: 24px;
}

/* ROOMS */
.room-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(240px, 1fr));
    gap: 20px;
}

/* ROOM CARD */
.room-card {
    background: white;
    padding: 20px;
    border-radius: 12px;
    box-shadow: 0 4px 10px rgba(0,0,0,0.05);
}

.room-card h3 {
    margin-bottom: 8px;
}

/* EMPTY STATE */
.empty-state {
    text-align: center;
    margin-top: 60px;
}

.empty-state p {
    font-size: 18px;
    color: #6b7280;
    margin-bottom: 16px;
}