/* VIS RFQ — Layout (Sidebar + Main) */

/* ── Sidebar ─────────────────────────────────────────────── */

.sidebar {
    width: var(--sidebar-width);
    height: 100vh;
    background: var(--c-primary-dark);
    color: #fff;
    display: flex;
    flex-direction: column;
    transition: width var(--transition-slow);
    flex-shrink: 0;
    z-index: 100;
}

.sidebar.collapsed {
    width: var(--sidebar-collapsed);
}

.sidebar-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: var(--sp-4);
    min-height: var(--topbar-height);
    border-bottom: 1px solid rgba(255,255,255,0.08);
}

.logo {
    display: flex;
    flex-direction: column;
}

.logo-text {
    font-size: var(--fs-lg);
    font-weight: var(--fw-bold);
    letter-spacing: 0.05em;
}

.logo-sub {
    font-size: var(--fs-xs);
    color: rgba(255,255,255,0.5);
    letter-spacing: 0.02em;
}

.sidebar-nav {
    flex: 1;
    padding: var(--sp-3) 0;
    overflow-y: auto;
}

.nav-item {
    display: flex;
    align-items: center;
    gap: var(--sp-3);
    padding: var(--sp-3) var(--sp-4);
    color: rgba(255,255,255,0.65);
    cursor: pointer;
    transition: all var(--transition);
    position: relative;
    text-decoration: none;
}

.nav-item:hover {
    color: #fff;
    background: rgba(255,255,255,0.08);
}

.nav-item.active {
    color: #fff;
    background: rgba(255,255,255,0.12);
}

.nav-item.active::before {
    content: '';
    position: absolute;
    left: 0;
    top: var(--sp-2);
    bottom: var(--sp-2);
    width: 3px;
    background: var(--c-accent);
    border-radius: 0 2px 2px 0;
}

.nav-item .material-icons-round {
    font-size: 20px;
    flex-shrink: 0;
}

.nav-label {
    font-size: var(--fs-base);
    white-space: nowrap;
}

.nav-divider {
    height: 1px;
    background: rgba(255,255,255,0.08);
    margin: var(--sp-3) var(--sp-4);
}

.badge {
    background: var(--c-accent);
    color: #fff;
    font-size: var(--fs-xs);
    font-weight: var(--fw-semibold);
    padding: 1px 6px;
    border-radius: 10px;
    margin-left: auto;
}

.sidebar-footer {
    padding: var(--sp-3) var(--sp-4);
    border-top: 1px solid rgba(255,255,255,0.08);
}

.user-info {
    display: flex;
    align-items: center;
    gap: var(--sp-2);
    font-size: var(--fs-sm);
    color: rgba(255,255,255,0.5);
}

/* ── Main Content ────────────────────────────────────────── */

.main-content {
    flex: 1;
    display: flex;
    flex-direction: column;
    height: 100vh;
    overflow: hidden;
}

.topbar {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: var(--topbar-height);
    padding: 0 var(--sp-6);
    background: var(--c-surface);
    border-bottom: 1px solid var(--c-border);
    flex-shrink: 0;
}

.topbar-left {
    display: flex;
    align-items: center;
    gap: var(--sp-4);
}

.page-title {
    font-size: var(--fs-lg);
    font-weight: var(--fw-semibold);
    color: var(--c-primary);
}

.topbar-right {
    display: flex;
    align-items: center;
    gap: var(--sp-3);
}

.search-box {
    display: flex;
    align-items: center;
    gap: var(--sp-2);
    background: var(--c-bg);
    padding: var(--sp-2) var(--sp-3);
    border-radius: var(--border-radius);
    border: 1px solid var(--c-border-light);
}

.search-box .material-icons-round {
    font-size: 18px;
    color: var(--c-text-muted);
}

.search-box input {
    border: none;
    background: transparent;
    padding: 0;
    width: 200px;
    font-size: var(--fs-sm);
}

.search-box input:focus {
    box-shadow: none;
}

.content-area {
    flex: 1;
    overflow-y: auto;
    padding: var(--sp-6);
}

/* ── Buttons ─────────────────────────────────────────────── */

.btn {
    display: inline-flex;
    align-items: center;
    gap: var(--sp-2);
    padding: var(--sp-2) var(--sp-4);
    border: none;
    border-radius: var(--border-radius-sm);
    font-size: var(--fs-base);
    font-weight: var(--fw-medium);
    cursor: pointer;
    transition: all var(--transition);
    white-space: nowrap;
}

.btn .material-icons-round {
    font-size: 18px;
}

.btn-primary {
    background: var(--c-primary);
    color: #fff;
}
.btn-primary:hover {
    background: var(--c-primary-light);
}

.btn-secondary {
    background: var(--c-surface);
    color: var(--c-text);
    border: 1px solid var(--c-border);
}
.btn-secondary:hover {
    background: var(--c-surface-hover);
}

.btn-danger {
    background: var(--c-error);
    color: #fff;
}

.btn:disabled {
    opacity: 0.5;
    cursor: not-allowed;
}

.btn-icon {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 32px;
    height: 32px;
    border: none;
    border-radius: var(--border-radius-sm);
    background: transparent;
    color: inherit;
    cursor: pointer;
    transition: background var(--transition);
}

.btn-icon:hover {
    background: rgba(255,255,255,0.1);
}

.main-content .btn-icon:hover {
    background: var(--c-surface-hover);
    color: var(--c-text);
}

.btn-icon.spinning .material-icons-round {
    animation: spin 1s linear infinite;
}

@keyframes spin {
    from { transform: rotate(0deg); }
    to { transform: rotate(360deg); }
}

.btn-back {
    display: inline-flex;
    align-items: center;
    gap: var(--sp-1);
    padding: var(--sp-2) var(--sp-3);
    background: transparent;
    border: none;
    color: var(--c-text-secondary);
    cursor: pointer;
    font-size: var(--fs-sm);
    border-radius: var(--border-radius-sm);
}

.btn-back:hover {
    background: var(--c-surface-hover);
    color: var(--c-text);
}