/* ── embdtrader Layout ───────────────────────────────────────────────────────── */
/* Sidebar, header, content grid, slide-in panel, responsive                    */

/* ── App Shell ───────────────────────────────────────────────────────────────── */
.app-shell {
    display: flex;
    min-height: 100vh;
}

/* ── Sidebar ─────────────────────────────────────────────────────────────────── */
.sidebar {
    position: fixed; top: 0; left: 0; bottom: 0;
    width: var(--sidebar-width);
    background: var(--bg-secondary);
    border-right: 1px solid var(--border);
    display: flex; flex-direction: column;
    z-index: 100;
    transition: width var(--duration-normal) var(--ease-out);
    overflow: hidden;
}
.sidebar:hover {
    width: var(--sidebar-expanded);
}

.sidebar-logo {
    height: var(--header-height);
    display: flex; align-items: center;
    padding: 0 var(--sp-4);
    border-bottom: 1px solid var(--border);
    gap: var(--sp-3); overflow: hidden;
    flex-shrink: 0;
}
.sidebar-logo .logo-icon {
    font-size: 1.3rem; flex-shrink: 0; width: 24px; text-align: center;
}
.sidebar-logo .logo-text {
    font-size: var(--text-base); font-weight: 700; letter-spacing: -0.02em;
    white-space: nowrap; opacity: 0;
    transition: opacity var(--duration-fast);
}
.sidebar:hover .logo-text { opacity: 1; }

.sidebar-nav {
    flex: 1; display: flex; flex-direction: column;
    padding: var(--sp-2) var(--sp-2);
    gap: 2px;
}

.nav-item {
    display: flex; align-items: center; gap: var(--sp-3);
    padding: var(--sp-3) var(--sp-3);
    border-radius: var(--radius-sm);
    color: var(--text-muted);
    font-size: var(--text-sm); font-weight: 500;
    cursor: pointer; transition: all var(--duration-fast);
    border: none; background: none; width: 100%; text-align: left;
    font-family: var(--font-sans);
    position: relative; overflow: hidden;
}
.nav-item:hover {
    color: var(--text-primary);
    background: var(--bg-hover);
}
.nav-item.active {
    color: var(--text-primary);
    background: var(--bg-active);
}
.nav-item.active::before {
    content: '';
    position: absolute; left: 0; top: 4px; bottom: 4px;
    width: 3px; border-radius: 0 3px 3px 0;
    background: var(--blue);
}
.nav-item .nav-icon {
    font-size: 1.1rem; flex-shrink: 0; width: 24px; text-align: center;
}
.nav-item .nav-label {
    white-space: nowrap; opacity: 0;
    transition: opacity var(--duration-fast);
}
.sidebar:hover .nav-label { opacity: 1; }

/* ── Main Content ────────────────────────────────────────────────────────────── */
.main-content {
    flex: 1;
    margin-left: var(--sidebar-width);
    display: flex; flex-direction: column;
    min-height: 100vh;
    transition: margin-left var(--duration-normal) var(--ease-out);
}

/* ── Top Header ──────────────────────────────────────────────────────────────── */
.top-header {
    height: var(--header-height);
    display: flex; justify-content: space-between; align-items: center;
    padding: 0 var(--sp-6);
    background: var(--bg-secondary);
    border-bottom: 1px solid var(--border);
    position: sticky; top: 0; z-index: 50;
    backdrop-filter: blur(12px);
    flex-shrink: 0;
}
.header-left {
    display: flex; align-items: center; gap: var(--sp-3);
}
.header-title {
    font-size: var(--text-base); font-weight: 600;
    color: var(--text-secondary);
}
.header-right {
    display: flex; align-items: center; gap: var(--sp-4);
}
.fleet-pnl {
    display: flex; flex-direction: column; align-items: flex-end;
}
.fleet-pnl .label {
    font-size: var(--text-xs); text-transform: uppercase;
    letter-spacing: 0.08em; color: var(--text-muted);
}
.fleet-pnl .value {
    font-size: var(--text-lg); font-weight: 600;
    font-family: var(--font-mono);
}

/* ── Page Content ────────────────────────────────────────────────────────────── */
.page-content {
    flex: 1; padding: var(--sp-6);
    max-width: var(--content-max-width);
    width: 100%;
    margin: 0 auto;
}

/* ── Views ────────────────────────────────────────────────────────────────────── */
.view { display: none; }
.view.active { display: block; animation: viewFadeIn var(--duration-normal) var(--ease-out); }
@keyframes viewFadeIn { from { opacity: 0; transform: translateY(4px); } to { opacity: 1; transform: translateY(0); } }

/* ── Section Headers ─────────────────────────────────────────────────────────── */
.section-header {
    display: flex; justify-content: space-between; align-items: center;
    margin-bottom: var(--sp-4);
}
.section-title {
    font-size: var(--text-sm); font-weight: 600;
    text-transform: uppercase; letter-spacing: 0.08em;
    color: var(--text-muted);
}

/* ── Slide-In Panel ──────────────────────────────────────────────────────────── */
.slide-overlay {
    position: fixed; top: 0; left: 0; right: 0; bottom: 0;
    background: rgba(0, 0, 0, 0.5);
    z-index: 140;
    opacity: 0; pointer-events: none;
    transition: opacity var(--duration-normal) var(--ease-out);
}
.slide-overlay.open {
    opacity: 1; pointer-events: auto;
}

.slide-panel {
    position: fixed; top: 0; right: 0; bottom: 0;
    width: var(--panel-width);
    min-width: var(--panel-min-width);
    max-width: 900px;
    background: var(--bg-surface);
    border-left: 1px solid var(--border);
    box-shadow: var(--shadow-panel);
    z-index: 150;
    transform: translateX(100%);
    transition: transform var(--duration-slow) var(--ease-out);
    display: flex; flex-direction: column;
    overflow: hidden;
}
.slide-panel.open {
    transform: translateX(0);
}

.panel-header {
    display: flex; align-items: center; gap: var(--sp-4);
    padding: var(--sp-4) var(--sp-6);
    border-bottom: 1px solid var(--border);
    flex-shrink: 0;
    background: var(--bg-secondary);
}
.panel-header h2 {
    font-size: var(--text-xl); font-weight: 600; flex: 1;
    letter-spacing: -0.01em;
}
.panel-actions {
    display: flex; gap: var(--sp-2);
}

.panel-tabs {
    display: flex; gap: 2px;
    padding: var(--sp-2) var(--sp-6);
    border-bottom: 1px solid var(--border);
    background: var(--bg-secondary);
    flex-shrink: 0;
}
.panel-tab {
    padding: var(--sp-2) var(--sp-4);
    border: none; border-radius: var(--radius-sm);
    background: transparent; color: var(--text-muted);
    font-family: var(--font-sans); font-size: var(--text-sm); font-weight: 500;
    cursor: pointer; transition: all var(--duration-fast);
}
.panel-tab:hover { color: var(--text-primary); background: var(--bg-hover); }
.panel-tab.active { color: var(--text-primary); background: var(--bg-active); }

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

.panel-tab-content { display: none; }
.panel-tab-content.active { display: block; animation: viewFadeIn var(--duration-fast) var(--ease-out); }

/* ── Detail Grid (inside panel) ──────────────────────────────────────────────── */
.detail-grid {
    display: grid; grid-template-columns: 1fr 1fr;
    gap: var(--sp-4);
}
.detail-full { grid-column: 1 / -1; }

/* ── Chart Container ─────────────────────────────────────────────────────────── */
.chart-container {
    border: 1px solid var(--border);
    border-radius: var(--radius-md);
    background: var(--bg-secondary);
    overflow: hidden;
    position: relative;
}
.chart-container .chart-title {
    position: absolute; top: var(--sp-3); left: var(--sp-4);
    font-size: var(--text-xs); font-weight: 600;
    text-transform: uppercase; letter-spacing: 0.08em;
    color: var(--text-dim); z-index: 2;
}

/* ── Time Range Selector ─────────────────────────────────────────────────────── */
.time-range {
    display: flex; gap: 2px;
    background: var(--bg-secondary);
    border-radius: var(--radius-sm);
    padding: 2px; border: 1px solid var(--border);
}
.time-range-btn {
    padding: 4px 12px; border: none; border-radius: 4px;
    background: transparent; color: var(--text-muted);
    font-family: var(--font-sans); font-size: var(--text-xs); font-weight: 600;
    cursor: pointer; transition: all var(--duration-fast);
}
.time-range-btn:hover { color: var(--text-primary); }
.time-range-btn.active {
    background: var(--bg-active); color: var(--text-primary);
}

/* ── Responsive ──────────────────────────────────────────────────────────────── */
@media (max-width: 1200px) {
    .kpi-strip { grid-template-columns: repeat(3, 1fr); }
}

@media (max-width: 900px) {
    .slide-panel {
        width: 100%; min-width: 0; max-width: none;
    }
    .detail-grid { grid-template-columns: 1fr; }
}

@media (max-width: 768px) {
    .sidebar {
        position: fixed; top: auto; bottom: 0; left: 0; right: 0;
        width: 100% !important; height: 56px;
        flex-direction: row; border-right: none;
        border-top: 1px solid var(--border);
    }
    .sidebar-logo { display: none; }
    .sidebar-nav {
        flex-direction: row; justify-content: space-around;
        padding: 0; width: 100%;
    }
    .nav-item {
        flex-direction: column; gap: 2px;
        padding: var(--sp-2); font-size: 0.6rem;
        justify-content: center; align-items: center;
    }
    .nav-item .nav-label { opacity: 1; font-size: 0.6rem; }
    .nav-item.active::before { display: none; }
    .nav-item .nav-icon { font-size: 1.2rem; }

    .main-content { margin-left: 0; margin-bottom: 56px; }
    .kpi-strip { grid-template-columns: repeat(2, 1fr); }
    .pair-grid { grid-template-columns: 1fr; }
    .pair-primary { grid-template-columns: 1fr 1fr; }
    .filters-bar { flex-direction: column; align-items: stretch; }
    .filters-bar select, .filters-bar input { width: 100%; }
}

@media (max-width: 480px) {
    .page-content { padding: var(--sp-3); }
    .kpi-strip { grid-template-columns: 1fr 1fr; gap: var(--sp-2); }
    .kpi-value { font-size: var(--text-lg); }
}