:root {
    --bg-main: #0B0E14;
    --bg-sidebar: #121620;
    --bg-card: #181C25;
    --border-color: #2A303F;
    --text-primary: #E0E4EB;
    --text-secondary: #8B94A5;
    --accent: #3A86FF;
    --accent-glow: rgba(58, 134, 255, 0.4);
    --danger: #FF006E;
    --success: #38B000;
    --card-radius: 16px;
    --transition: all 0.3s ease;
}

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

body {
    font-family: 'Inter', sans-serif;
    background-color: var(--bg-main);
    color: var(--text-primary);
    min-height: 100vh;
    overflow-x: hidden;
}

h1, h2, h3, h4 {
    font-family: 'Outfit', sans-serif;
}

.app-container {
    display: flex;
    height: 100vh;
}

/* Sidebar */
.sidebar {
    width: 300px;
    background-color: var(--bg-sidebar);
    border-right: 1px solid var(--border-color);
    padding: 24px;
    display: flex;
    flex-direction: column;
    gap: 32px;
    transition: width 0.3s ease, padding 0.3s ease;
    overflow: hidden;
}

.sidebar.collapsed {
    width: 72px;
    padding: 24px 12px;
    align-items: center;
}

.sidebar.collapsed .sidebar-text,
.sidebar.collapsed .upload-section h3,
.sidebar.collapsed .log-list {
    display: none;
}

.sidebar.collapsed .sidebar-expanded-only {
    display: none !important;
}

.sidebar.collapsed .sidebar-collapsed-only {
    display: flex !important;
    justify-content: center;
    width: 100%;
}

.sidebar.collapsed .drop-zone {
    padding: 12px 0;
    border: none;
    background: transparent;
}

.sidebar.collapsed .drop-zone p {
    display: none;
}

.sidebar.collapsed .upload-section {
    width: 100%;
}

.sidebar-collapse-btn {
    width: 28px;
    height: 28px;
    border-radius: 6px;
    border: 1px solid var(--border-color);
    background: transparent;
    color: var(--text-secondary);
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: var(--transition);
    flex-shrink: 0;
}

.sidebar-collapse-btn:hover {
    background: rgba(255, 255, 255, 0.05);
    color: var(--text-primary);
    border-color: var(--accent);
}

.sidebar.collapsed .sidebar-collapse-btn svg {
    transform: rotate(180deg);
}

.brand {
    display: flex;
    align-items: center;
    gap: 12px;
    position: relative;
}

.brand h1 {
    font-size: 28px;
    font-weight: 700;
    letter-spacing: -0.5px;
}

.brand span {
    color: var(--accent);
}

.logo-glow {
    position: absolute;
    width: 40px;
    height: 40px;
    background: var(--accent);
    filter: blur(24px);
    opacity: 0.5;
    z-index: 0;
    left: 40px;
}

/* Upload Zone */
.upload-section h3, .log-list h3, .agent-panel h3 {
    font-size: 14px;
    text-transform: uppercase;
    letter-spacing: 1px;
    color: var(--text-secondary);
    margin-bottom: 16px;
}

.drop-zone {
    border: 2px dashed var(--border-color);
    border-radius: 12px;
    padding: 32px 16px;
    text-align: center;
    cursor: pointer;
    transition: var(--transition);
    position: relative;
    background: rgba(255,255,255,0.01);
}

.drop-zone:hover, .drop-zone.dragover {
    border-color: var(--accent);
    background: rgba(58, 134, 255, 0.05);
    box-shadow: 0 0 20px var(--accent-glow);
}

.drop-zone input {
    position: absolute;
    inset: 0;
    opacity: 0;
    cursor: pointer;
}

.upload-icon {
    color: var(--accent);
    margin-bottom: 12px;
}

.drop-zone p {
    font-size: 13px;
    color: var(--text-secondary);
}

.log-list {
    flex: 1;
}

.log-list ul {
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.log-list li {
    padding: 12px 16px;
    background: var(--bg-card);
    border-radius: 8px;
    border: 1px solid var(--border-color);
    font-size: 13px;
    cursor: pointer;
    transition: var(--transition);
}

.log-list li:not(.empty-state):hover {
    border-color: var(--accent);
    transform: translateX(4px);
}

.log-list li.active-log {
    border-color: var(--accent);
    background: rgba(58, 134, 255, 0.08);
}


.log-timestamp {
    font-size: 11px;
    color: var(--text-secondary);
    margin-top: 4px;
    opacity: 0.75;
}

.analysis-badge {
    font-size: 10px;
    font-weight: 700;
    padding: 2px 7px;
    border-radius: 20px;
    background: linear-gradient(135deg, rgba(58,134,255,0.15), rgba(212,0,255,0.15));
    border: 1px solid rgba(212,0,255,0.35);
    color: #d400ff;
    white-space: nowrap;
    flex-shrink: 0;
    letter-spacing: 0.3px;
}

.empty-state {
    text-align: center;
    color: var(--text-secondary) !important;
    background: transparent !important;
    border: 1px dashed var(--border-color) !important;
    cursor: default !important;
}

.agent-panel {
    background: linear-gradient(145deg, var(--bg-card), rgba(58, 134, 255, 0.05));
    padding: 20px;
    border-radius: 12px;
    border: 1px solid var(--border-color);
}

.agent-desc {
    font-size: 12px;
    color: var(--text-secondary);
    line-height: 1.5;
    margin-bottom: 16px;
}

.btn-primary {
    width: 100%;
    padding: 12px;
    border-radius: 8px;
    border: none;
    background: var(--accent);
    color: #fff;
    font-family: inherit;
    font-weight: 600;
    cursor: pointer;
    transition: var(--transition);
}

.btn-primary:hover:not(:disabled) {
    box-shadow: 0 0 15px var(--accent-glow);
    transform: translateY(-2px);
}

.btn-primary:disabled {
    background: var(--border-color);
    color: var(--text-secondary);
    cursor: not-allowed;
}

/* Main Content */
.main-content {
    flex: 1;
    padding: 32px;
    display: flex;
    flex-direction: column;
    gap: 24px;
    overflow-y: auto;
}

.top-nav {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.top-nav h2 {
    font-size: 24px;
    font-weight: 600;
}


.dashboard-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    grid-template-rows: auto auto;
    gap: 24px;
    flex: 1;
}

.col-span-2 {
    grid-column: span 2;
}

.graph-card, .stats-card, .agent-chat-card {
    background: var(--bg-card);
    border-radius: var(--card-radius);
    border: 1px solid var(--border-color);
    padding: 24px;
    display: flex;
    flex-direction: column;
    position: relative;
    overflow: hidden;
}

.card-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 20px;
}

.select-modern {
    background: var(--bg-main);
    border: 1px solid var(--border-color);
    color: var(--text-primary);
    padding: 8px 12px;
    border-radius: 6px;
    font-family: inherit;
    font-size: 13px;
    outline: none;
    cursor: pointer;
}

.select-modern:focus {
    border-color: var(--accent);
}

.chart-container {
    flex: 1;
    min-height: 400px;
    position: relative;
}

.empty-chart-overlay {
    position: absolute;
    inset: 0;
    display: flex;
    align-items: center;
    justify-content: center;
    background: rgba(24, 28, 37, 0.4);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border-radius: 8px;
    z-index: 10;
    transition: var(--transition);
}

.empty-chart-overlay p {
    color: var(--text-secondary);
    font-weight: 500;
}

/* Toggle Search */
.toggle-search-wrap {
    position: relative;
    margin-top: 20px;
    padding-top: 20px;
    border-top: 1px solid var(--border-color);
}

.toggle-search-icon {
    position: absolute;
    top: 30px;
    left: 12px;
    color: var(--text-secondary);
    pointer-events: none;
}

.toggle-search {
    width: 100%;
    background: var(--bg-main);
    border: 1px solid var(--border-color);
    color: var(--text-primary);
    padding: 8px 12px 8px 34px;
    border-radius: 20px;
    font-family: inherit;
    font-size: 12px;
    outline: none;
    transition: var(--transition);
}

.toggle-search:focus {
    border-color: var(--accent);
    box-shadow: 0 0 0 2px rgba(58, 134, 255, 0.15);
}

.toggle-search::placeholder {
    color: var(--text-secondary);
}

.parameter-toggles {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    margin-top: 24px;
    padding-top: 24px;
    border-top: 1px solid var(--border-color);
    max-height: 140px;
    overflow-y: auto;
    scrollbar-width: thin;
    scrollbar-color: var(--border-color) transparent;
}

.parameter-toggles::-webkit-scrollbar {
    width: 4px;
}

.parameter-toggles::-webkit-scrollbar-thumb {
    background: var(--border-color);
    border-radius: 4px;
}

.toggle-label {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 12px;
    cursor: pointer;
    background: rgba(255,255,255,0.03);
    padding: 5px 10px;
    border-radius: 20px;
    border: 1px solid var(--border-color);
    transition: var(--transition);
    user-select: none;
    white-space: nowrap;
    flex-shrink: 0;
}

.toggle-label:hover {
    background: rgba(255,255,255,0.08);
}

.toggle-label input {
    accent-color: var(--accent);
    cursor: pointer;
}

/* Stats Card */
.metrics-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(140px, 1fr));
    gap: 12px;
    margin-top: 0;
    transition: max-height 0.35s ease, opacity 0.25s ease, margin 0.35s ease;
    max-height: 600px;
    opacity: 1;
    overflow: hidden;
}

.metrics-grid.collapsed {
    max-height: 0;
    opacity: 0;
    margin: 0;
}

/* Collapsible Header */
.collapsible-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    cursor: pointer;
    padding: 4px 0;
    user-select: none;
    margin-bottom: 16px;
}

.collapsible-header:hover h3 {
    color: var(--accent);
}

.collapse-chevron {
    transition: transform 0.3s ease;
    color: var(--text-secondary);
}

.collapse-chevron.rotated {
    transform: rotate(180deg);
}

.metric-item {
    background: var(--bg-main);
    padding: 16px;
    border-radius: 8px;
    display: flex;
    flex-direction: column;
    border-left: 3px solid var(--accent);
    transition: all 0.3s cubic-bezier(0.25, 0.8, 0.25, 1);
    position: relative;
    z-index: 1;
}

.metric-item:hover {
    transform: translateY(-4px) scale(1.02);
    box-shadow: 0 10px 20px rgba(0, 0, 0, 0.3), 0 0 15px rgba(58, 134, 255, 0.15);
}

.metric-item.danger {
    border-left-color: var(--danger);
}

.metric-item.danger:hover {
    box-shadow: 0 10px 20px rgba(0, 0, 0, 0.3), 0 0 15px rgba(255, 0, 110, 0.15);
}

.metric-item .label {
    font-size: 12px;
    color: var(--text-secondary);
    text-transform: uppercase;
    letter-spacing: 1px;
    margin-bottom: 8px;
}

.metric-item .value {
    font-size: 28px;
    font-weight: 700;
    font-family: 'Outfit';
}

.metric-item .unit {
    font-size: 14px;
    color: var(--text-secondary);
    margin-left: 4px;
}

/* Chat Card */
.chat-box {
    margin-top: 16px;
    flex: 1;
    background: var(--bg-main);
    border-radius: 8px;
    padding: 16px;
    display: flex;
    flex-direction: column;
    gap: 12px;
    overflow-y: auto;
    font-size: 14px;
    line-height: 1.5;
}

.msg.system {
    color: var(--text-secondary);
    font-style: italic;
    text-align: center;
}

/* Authentication Overlay */
.auth-overlay {
    position: fixed;
    inset: 0;
    background: rgba(11, 14, 20, 0.6);
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
    z-index: 1000;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: var(--transition);
}

.auth-card {
    background: rgba(24, 28, 37, 0.75);
    backdrop-filter: blur(24px);
    -webkit-backdrop-filter: blur(24px);
    border: 1px solid rgba(255, 255, 255, 0.08);
    padding: 40px;
    border-radius: var(--card-radius);
    width: 100%;
    max-width: 400px;
    box-shadow: 0 20px 50px rgba(0,0,0,0.6), inset 0 1px 0 rgba(255, 255, 255, 0.1);
}

.auth-tabs {
    display: flex;
    gap: 10px;
    margin-bottom: 24px;
}

.auth-tabs .tab {
    flex: 1;
    background: transparent;
    border: none;
    color: var(--text-secondary);
    padding: 10px;
    cursor: pointer;
    border-bottom: 2px solid transparent;
    font-size: 14px;
    font-weight: 600;
}

.auth-tabs .tab.active {
    color: var(--accent);
    border-bottom-color: var(--accent);
}

.input-modern {
    width: 100%;
    background: var(--bg-main);
    border: 1px solid var(--border-color);
    color: var(--text-primary);
    padding: 12px 16px;
    border-radius: 8px;
    margin-bottom: 16px;
    font-family: inherit;
    font-size: 14px;
    outline: none;
    transition: var(--transition);
}

.input-modern:focus {
    border-color: var(--accent);
    box-shadow: 0 0 0 2px rgba(58, 134, 255, 0.2);
}

#authForm {
    display: flex;
    flex-direction: column;
}

.auth-error {
    color: var(--danger);
    font-size: 12px;
    margin-top: 12px;
    text-align: center;
    min-height: 18px;
}

/* === Toast Notifications === */
.toast-notification {
    position: fixed;
    top: 24px;
    right: 24px;
    z-index: 9999;
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 14px 20px;
    border-radius: 12px;
    background: rgba(24, 28, 37, 0.92);
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
    border: 1px solid rgba(255, 255, 255, 0.08);
    box-shadow: 0 12px 40px rgba(0, 0, 0, 0.5), inset 0 1px 0 rgba(255, 255, 255, 0.06);
    font-size: 13px;
    font-weight: 500;
    color: var(--text-primary);
    max-width: 420px;
    transform: translateX(120%);
    opacity: 0;
    transition: transform 0.4s cubic-bezier(0.25, 0.8, 0.25, 1), opacity 0.4s ease;
    pointer-events: auto;
}

.toast-notification.toast-visible {
    transform: translateX(0);
    opacity: 1;
}

.toast-icon {
    width: 28px;
    height: 28px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 14px;
    font-weight: 700;
    flex-shrink: 0;
}

.toast-success .toast-icon {
    background: rgba(56, 176, 0, 0.15);
    color: var(--success);
    border: 1px solid rgba(56, 176, 0, 0.3);
    box-shadow: 0 0 12px rgba(56, 176, 0, 0.2);
}

.toast-error .toast-icon {
    background: rgba(255, 0, 110, 0.15);
    color: var(--danger);
    border: 1px solid rgba(255, 0, 110, 0.3);
    box-shadow: 0 0 12px rgba(255, 0, 110, 0.2);
}

.toast-success {
    border-left: 3px solid var(--success);
}

.toast-error {
    border-left: 3px solid var(--danger);
}

.toast-msg {
    flex: 1;
    line-height: 1.4;
}

.toast-close {
    background: transparent;
    border: none;
    color: var(--text-secondary);
    cursor: pointer;
    font-size: 14px;
    padding: 4px;
    border-radius: 4px;
    transition: var(--transition);
    flex-shrink: 0;
}

.toast-close:hover {
    color: var(--text-primary);
    background: rgba(255, 255, 255, 0.08);
}

/* Sidebar User Footer */
.sidebar-user {
    margin-top: auto;
    padding-top: 16px;
    border-top: 1px solid var(--border-color);
    display: flex;
    align-items: center;
    gap: 10px;
    flex-shrink: 0;
}

/* User Profile & Navigation */
.user-profile {
    display: flex;
    align-items: center;
    gap: 10px;
    background: rgba(255, 255, 255, 0.03);
    padding: 6px 16px 6px 6px;
    border-radius: 30px;
    border: 1px solid var(--border-color);
    transition: var(--transition);
}

.user-profile:hover {
    background: rgba(255, 255, 255, 0.06);
    border-color: rgba(255, 255, 255, 0.1);
}

.user-avatar {
    width: 28px;
    height: 28px;
    border-radius: 50%;
    background: linear-gradient(135deg, var(--accent), #8338EC);
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    box-shadow: 0 0 10px rgba(58, 134, 255, 0.3);
}

#navUsername {
    font-size: 13px;
    font-weight: 600;
    color: var(--text-primary);
    max-width: 120px;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.logout-btn {
    padding: 8px 14px;
    font-size: 12px;
    background: rgba(255, 0, 110, 0.05);
    color: var(--danger);
    border: 1px solid rgba(255, 0, 110, 0.2);
    border-radius: 20px;
    cursor: pointer;
    transition: var(--transition);
    font-weight: 600;
    display: flex;
    align-items: center;
    gap: 6px;
    font-family: inherit;
}

.logout-btn:hover {
    background: var(--danger);
    color: white;
    box-shadow: 0 0 15px rgba(255, 0, 110, 0.3);
    border-color: var(--danger);
}

/* === Floating AI Button (FAB) === */
.fab-ai {
    position: fixed;
    bottom: 28px;
    right: 28px;
    width: 60px;
    height: 60px;
    border-radius: 50%;
    border: none;
    background: linear-gradient(135deg, #3A86FF, #d400ff, #FF006E);
    color: white;
    cursor: pointer;
    z-index: 900;
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: 0 6px 24px rgba(212, 0, 255, 0.4), 0 0 0 0 rgba(212, 0, 255, 0.3);
    transition: all 0.35s cubic-bezier(0.25, 0.8, 0.25, 1);
    animation: fab-pulse 2.5s ease-in-out infinite;
}

.fab-ai:hover {
    transform: scale(1.12);
    box-shadow: 0 8px 32px rgba(212, 0, 255, 0.5), 0 0 0 8px rgba(212, 0, 255, 0.1);
}

.fab-ai:disabled {
    background: var(--border-color);
    box-shadow: none;
    animation: none;
    cursor: not-allowed;
}

.fab-ai:disabled:hover {
    transform: none;
}

.fab-ai img {
    width: 36px;
    height: 36px;
    object-fit: contain;
    filter: brightness(2);
}

@keyframes fab-pulse {
    0%, 100% { box-shadow: 0 6px 24px rgba(212, 0, 255, 0.4), 0 0 0 0 rgba(212, 0, 255, 0.3); }
    50% { box-shadow: 0 6px 24px rgba(212, 0, 255, 0.4), 0 0 0 12px rgba(212, 0, 255, 0); }
}

/* Tooltip on FAB */
.fab-ai::after {
    content: 'AI Tuner';
    position: absolute;
    right: 72px;
    background: var(--bg-card);
    color: var(--text-primary);
    font-size: 12px;
    font-weight: 600;
    padding: 6px 12px;
    border-radius: 8px;
    border: 1px solid var(--border-color);
    white-space: nowrap;
    opacity: 0;
    pointer-events: none;
    transform: translateX(8px);
    transition: all 0.2s ease;
}

.fab-ai:hover::after {
    opacity: 1;
    transform: translateX(0);
}

/* === AI Drawer (Slide-up Panel) === */
.ai-drawer-overlay {
    position: fixed;
    inset: 0;
    background: rgba(0, 0, 0, 0.5);
    z-index: 950;
    opacity: 0;
    pointer-events: none;
    transition: opacity 0.3s ease;
}

.ai-drawer-overlay.open {
    opacity: 1;
    pointer-events: auto;
}

.ai-drawer {
    position: fixed;
    bottom: 0;
    right: 0;
    width: 480px;
    max-width: 100vw;
    max-height: 70vh;
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-bottom: none;
    border-radius: var(--card-radius) var(--card-radius) 0 0;
    z-index: 960;
    display: flex;
    flex-direction: column;
    transform: translateY(100%);
    transition: transform 0.35s cubic-bezier(0.25, 0.8, 0.25, 1);
    box-shadow: 0 -10px 40px rgba(0, 0, 0, 0.5);
}

.ai-drawer.open {
    transform: translateY(0);
}

.ai-drawer-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 16px 20px;
    border-bottom: 1px solid var(--border-color);
    flex-shrink: 0;
}

.ai-drawer-header h3 {
    margin: 0;
    font-size: 16px;
    display: flex;
    align-items: center;
    gap: 8px;
}

.ai-drawer-close {
    width: 32px;
    height: 32px;
    border-radius: 50%;
    border: 1px solid var(--border-color);
    background: transparent;
    color: var(--text-secondary);
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: var(--transition);
    font-size: 18px;
}

.ai-drawer-close:hover {
    background: rgba(255, 0, 110, 0.1);
    color: var(--danger);
    border-color: rgba(255, 0, 110, 0.3);
}

.ai-drawer-body {
    flex: 1;
    overflow-y: auto;
    padding: 16px 20px;
}

.ai-drawer-actions {
    padding: 12px 20px;
    border-top: 1px solid var(--border-color);
    flex-shrink: 0;
}

.ai-drawer-actions .btn-primary {
    border-radius: 20px;
}

/* === Analysis History Pills === */
#analysisHistory {
    padding-bottom: 12px;
    margin-bottom: 12px;
    border-bottom: 1px solid var(--border-color);
}

.history-header {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 11px;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.06em;
    color: var(--text-secondary);
    margin-bottom: 8px;
}

.history-count {
    background: rgba(58, 134, 255, 0.15);
    color: #3A86FF;
    border-radius: 10px;
    padding: 1px 7px;
    font-size: 10px;
    font-weight: 700;
    letter-spacing: 0;
    text-transform: none;
}

#historyPills {
    display: flex;
    flex-wrap: wrap;
    gap: 6px;
}

.history-pill {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    color: var(--text-secondary);
    border-radius: 14px;
    padding: 4px 12px;
    font-size: 11px;
    cursor: pointer;
    transition: all 0.15s ease;
    white-space: nowrap;
}

.history-pill:hover {
    border-color: #3A86FF;
    color: var(--text-primary);
}

.history-pill.active {
    background: rgba(58, 134, 255, 0.15);
    border-color: #3A86FF;
    color: #3A86FF;
    font-weight: 600;
}

/* === Mobile Hamburger === */
.mobile-header {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 800;
    background: var(--bg-sidebar);
    border-bottom: 1px solid var(--border-color);
    padding: 12px 16px;
    align-items: center;
    justify-content: space-between;
}

.hamburger {
    width: 36px;
    height: 36px;
    border-radius: 8px;
    border: 1px solid var(--border-color);
    background: transparent;
    color: var(--text-primary);
    cursor: pointer;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 5px;
    transition: var(--transition);
}

.hamburger span {
    display: block;
    width: 18px;
    height: 2px;
    background: var(--text-primary);
    border-radius: 2px;
    transition: var(--transition);
}

.hamburger:hover {
    border-color: var(--accent);
}

.sidebar-overlay {
    display: none;
    position: fixed;
    inset: 0;
    background: rgba(0, 0, 0, 0.6);
    z-index: 849;
}

/* === Responsive Breakpoints === */
@media (max-width: 1024px) {
    .dashboard-grid {
        grid-template-columns: 1fr;
    }
    .col-span-2 {
        grid-column: span 1;
    }
}

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

    .app-container {
        flex-direction: column;
        padding-top: 60px;
    }

    .sidebar {
        position: fixed;
        top: 0;
        left: -320px;
        bottom: 0;
        width: 300px;
        z-index: 850;
        transition: left 0.3s ease;
        padding-top: 72px;
    }

    .sidebar.open {
        left: 0;
    }

    .sidebar-overlay.open {
        display: block;
    }

    .main-content {
        padding: 16px;
    }

    .top-nav {
        flex-direction: column;
        gap: 12px;
        align-items: flex-start;
    }

    .top-nav > div {
        flex-wrap: wrap;
    }

    .top-nav h2 {
        font-size: 20px;
    }

    .chart-container {
        min-height: 280px;
    }

    .parameter-toggles {
        max-height: 100px;
    }

    .metric-item .value {
        font-size: 22px;
    }

    .ai-drawer {
        width: 100vw;
        max-height: 80vh;
    }

    .fab-ai {
        bottom: 20px;
        right: 20px;
        width: 54px;
        height: 54px;
    }

    .fab-ai::after {
        display: none;
    }

}