/* ============================
       DESIGN TOKENS
       ============================ */
    :root {
      --font-body: 'Nunito', 'Helvetica Neue', sans-serif;
      --font-mono: 'Nunito', 'Fira Code', monospace;

      --text-xs:   clamp(0.75rem,  0.7rem  + 0.25vw, 0.875rem);
      --text-sm:   clamp(0.875rem, 0.8rem  + 0.35vw, 1rem);
      --text-base: clamp(1rem,     0.95rem + 0.25vw, 1.125rem);
      --text-lg:   clamp(1.125rem, 1rem    + 0.75vw, 1.5rem);
      --text-xl:   clamp(1.5rem,   1.2rem  + 1.25vw, 2.25rem);

      --space-1:  0.25rem;
      --space-2:  0.5rem;
      --space-3:  0.75rem;
      --space-4:  1rem;
      --space-5:  1.25rem;
      --space-6:  1.5rem;
      --space-8:  2rem;
      --space-10: 2.5rem;
      --space-12: 3rem;

      --radius-sm: 0.375rem;
      --radius-md: 0.5rem;
      --radius-lg: 0.75rem;
      --radius-xl: 1rem;

      --transition: 180ms cubic-bezier(0.16, 1, 0.3, 1);
    }

    :root {
      --color-bg:             #121524;
      --color-surface:        #161a2d;
      --color-surface-2:      #22283f;
      --color-surface-offset: #1f2542;
      --color-border:         #2d3562;
      --color-divider:        #2f3670;

      --color-text:           #e5e9ff;
      --color-text-muted:     #acc4f5;
      --color-text-faint:     #8da7d9;

      --color-primary:        #54d9f8;
      --color-primary-hover:  #80e8ff;
      --color-primary-highlight: #2a3c6a;

      --color-success:        #50fa7b;
      --color-success-highlight: #2d3725;
      --color-error:          #ff5555;
      --color-error-highlight: #3d1a1a;
      --color-warning:        #f1fa8c;
      --color-warning-highlight: #3d3d1a;
      --color-neutral:        #6272a4;
      --color-neutral-highlight: #3d3f4b;

      --shadow-sm: 0 1px 2px rgba(0,0,0,0.4);
      --shadow-md: 0 4px 12px rgba(0,0,0,0.5);
      --shadow-lg: 0 12px 32px rgba(0,0,0,0.6);
    }

    /* ============================
       RESET & BASE
       ============================ */
    *, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

    html {
      -webkit-font-smoothing: antialiased;
      -moz-osx-font-smoothing: grayscale;
      text-rendering: optimizeLegibility;
      -webkit-text-size-adjust: 100%;
      -ms-text-size-adjust: 100%;
      height: 100%;
      overflow: hidden;
    }

    body {
      font-family: var(--font-body);
      font-size: var(--text-sm);
      color: var(--color-text);
      background: var(--color-bg);
      height: 100dvh;
      display: grid;
      grid-template-columns: 220px 1fr;
      grid-template-rows: 52px 1fr;
      overflow: hidden;
    }

    /* ============================
       MOBILE OPTIMIZATION - Tablet & Larger Phones
       ============================ */
    @media (max-width: 768px) {
      body {
        grid-template-columns: 1fr;
        grid-template-rows: 52px 1fr;
      }
    }

    /* Mobile Phones */
    @media (max-width: 480px) {
      body {
        grid-template-columns: 1fr;
        grid-template-rows: auto 1fr;
      }
    }

    /* ============================
       SIDEBAR
       ============================ */
    .sidebar {
      grid-row: 1 / -1;
      grid-column: 1;
      background: linear-gradient(145deg, rgba(44,49,68,0.85), rgba(28,34,50,0.7));
      border-right: 1px solid rgba(136,145,170,0.32);
      box-shadow: 10px 10px 30px rgba(0,0,0,0.35), -8px -8px 24px rgba(72,82,115,0.25);
      border-radius: var(--radius-lg);
      backdrop-filter: blur(10px);
      -webkit-backdrop-filter: blur(10px);
      overflow-y: auto;
      overscroll-behavior: contain;
      display: flex;
      flex-direction: column;
    }

    .sidebar-logo {
      display: flex;
      align-items: center;
      gap: var(--space-3);
      padding: var(--space-4) var(--space-5);
      border-bottom: 1px solid var(--color-border);
      min-height: 52px;
    }

    .sidebar-logo svg {
      flex-shrink: 0;
    }

    .sidebar-logo-text {
      font-size: var(--text-sm);
      font-weight: 700;
      letter-spacing: -0.01em;
      line-height: 1.2;
    }

    .sidebar-section {
      padding: var(--space-4) var(--space-3);
    }

    .sidebar-section-label {
      font-size: var(--text-xs);
      font-weight: 600;
      text-transform: uppercase;
      letter-spacing: 0.08em;
      color: var(--color-text-faint);
      padding: 0 var(--space-2) var(--space-2);
    }

    .nav-item {
      display: flex;
      align-items: center;
      gap: var(--space-2);
      padding: var(--space-2) var(--space-3);
      border-radius: var(--radius-md);
      font-size: var(--text-sm);
      color: var(--color-text-muted);
      cursor: pointer;
      transition: background var(--transition), color var(--transition);
      border: none;
      background: none;
      width: 100%;
      text-align: left;
    }

    .nav-item:hover {
      background: var(--color-surface-offset);
      color: var(--color-text);
    }

    .nav-item.active {
      background: var(--color-primary-highlight);
      color: var(--color-primary);
      font-weight: 600;
    }

    .sidebar-footer {
      margin-top: auto;
      padding: var(--space-4) var(--space-5);
      border-top: 1px solid var(--color-border);
      font-size: var(--text-xs);
      color: var(--color-text-faint);
    }

    /* Mobile sidebar - hide on tablet and below */
    @media (max-width: 768px) {
      .sidebar {
        display: none;
        position: fixed;
        left: 0;
        top: 52px;
        width: 260px;
        height: calc(100dvh - 52px);
        z-index: 999;
        box-shadow: 2px 0 8px rgba(0,0,0,0.3);
        max-width: 100%;
      }

      .sidebar.active {
        display: flex;
      }

      .sidebar-section {
        padding: var(--space-3) var(--space-2);
      }

      .nav-item {
        padding: var(--space-3) var(--space-2);
        font-size: var(--text-sm);
        min-height: 44px;
      }
    }

    @media (max-width: 480px) {
      .sidebar {
        width: 100%;
        max-width: 100%;
        top: 56px;
        height: calc(100dvh - 56px);
      }

      .sidebar-logo-text {
        font-size: 0.875rem;
      }

      .nav-item {
        padding: var(--space-3) var(--space-2);
        min-height: 48px;
      }
    }

    /* ============================
       TOPBAR
       ============================ */
    .topbar {
      grid-column: 2;
      grid-row: 1;
      background: rgba(32, 36, 52, 0.55);
      border-bottom: 1px solid rgba(255,255,255,0.12);
      box-shadow: 0 8px 30px rgba(0,0,0,0.35);
      display: flex;
      align-items: center;
      justify-content: space-between;
      padding: 0 var(--space-6);
      position: sticky;
      top: 0;
      z-index: 10;
      gap: var(--space-3);
      backdrop-filter: blur(8px);
      -webkit-backdrop-filter: blur(8px);
    }

    .topbar-brand {
      display: none;
      align-items: center;
      gap: var(--space-2);
      font-weight: 700;
      color: var(--color-text);
      text-transform: uppercase;
      font-size: var(--text-sm);
    }

    .topbar-brand svg {
      color: var(--color-primary);
    }

    .topbar-menu {
      display: none;
      background: none;
      border: 1px solid transparent;
      border-radius: var(--radius-md);
      color: var(--color-text);
      padding: 0.25rem;
      cursor: pointer;
    }

    .topbar-menu:hover {
      background: var(--color-surface-offset);
    }

    @media (max-width: 768px) {
      .topbar-brand {
        display: inline-flex;
      }

      .topbar-menu {
        display: inline-flex;
      }

      .topbar-title {
        display: none;
      }
    }

    @media (max-width: 480px) {
      .topbar-title {
        font-size: 0.875rem;
        overflow: hidden;
        text-overflow: ellipsis;
        white-space: nowrap;
      }

      .topbar-actions {
        gap: var(--space-2);
      }
    }

    .topbar-title {
      font-size: var(--text-base);
      font-weight: 600;
    }

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

    .btn {
      display: inline-flex;
      align-items: center;
      gap: var(--space-2);
      padding: var(--space-2) var(--space-4);
      border-radius: var(--radius-md);
      font-size: var(--text-sm);
      font-weight: 500;
      cursor: pointer;
      border: 1px solid transparent;
      transition: background var(--transition), color var(--transition), border-color var(--transition);
      min-height: 36px;
    }

    @media (max-width: 480px) {
      .btn {
        min-height: 44px;
        padding: var(--space-2) var(--space-3);
      }
    }

    .btn-primary {
      background: var(--color-primary);
      color: #fff;
      border-color: var(--color-primary);
    }

    .btn-primary:hover {
      background: var(--color-primary-hover);
      border-color: var(--color-primary-hover);
    }

    .btn-ghost {
      background: var(--color-surface-2);
      color: var(--color-text-muted);
      border-color: var(--color-border);
    }

    .btn-ghost:hover {
      background: var(--color-surface-offset);
      color: var(--color-text);
    }

    .btn-icon {
      padding: var(--space-2);
      background: none;
      border: none;
      color: var(--color-text-muted);
      cursor: pointer;
      border-radius: var(--radius-md);
      transition: background var(--transition), color var(--transition);
    }

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

    /* Mobile topbar adjustments */
    @media (max-width: 768px) {
      .topbar {
        grid-column: 1;
        padding: 0 var(--space-4);
      }

      .topbar-title {
        font-size: var(--text-sm);
        font-weight: 600;
      }

      .refresh-status {
        display: none;
      }
    }

    @media (max-width: 480px) {
      .topbar {
        padding: 0 var(--space-3);
        min-height: 56px;
      }

      .topbar-title {
        font-size: 0.875rem;
      }

      .topbar-actions {
        gap: var(--space-2);
      }

      .btn {
        padding: var(--space-2) var(--space-2);
        font-size: var(--text-xs);
      }

      .btn svg {
        width: 16px;
        height: 16px;
      }

      .btn-icon svg {
        width: 18px;
        height: 18px;
      }
    }

    /* ============================
       MAIN CONTENT
       ============================ */
    .main {
      grid-column: 2;
      grid-row: 2;
      overflow-y: auto;
      overscroll-behavior: contain;
      padding: var(--space-6);
      display: flex;
      flex-direction: column;
      gap: var(--space-6);
    }

    /* Mobile main content */
    @media (max-width: 768px) {
      .main {
        grid-column: 1;
        padding: var(--space-4);
        gap: var(--space-4);
      }
    }

    @media (max-width: 480px) {
      .main {
        padding: var(--space-3);
        gap: var(--space-3);
      }
    }

    /* ============================
       PAGE SECTIONS
       ============================ */
    .page-section {
      display: none;
    }

    .page-section.active {
      display: contents;
    }

    /* ============================
       REFRESH STATUS
       ============================ */
    .refresh-status {
      display: flex;
      align-items: center;
      gap: var(--space-2);
      font-size: var(--text-xs);
      color: var(--color-text-muted);
    }

    .refresh-dot {
      width: 6px;
      height: 6px;
      border-radius: 50%;
      background: var(--color-success);
    }

    .refresh-dot.stale {
      background: var(--color-warning);
    }

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

    .spinning {
      animation: spin 0.8s linear infinite;
    }

    /* ============================
       SECTION HEADER
       ============================ */
    .section-header {
      display: flex;
      align-items: baseline;
      justify-content: space-between;
      gap: var(--space-4);
      margin-bottom: var(--space-4);
    }

    @media (max-width: 480px) {
      .section-header {
        flex-direction: column;
        align-items: flex-start;
        gap: var(--space-2);
        margin-bottom: var(--space-3);
      }
    }

    .section-title {
      font-size: var(--text-lg);
      font-weight: 700;
      letter-spacing: -0.02em;
    }

    @media (max-width: 480px) {
      .section-title {
        font-size: var(--text-base);
      }
    }

    .section-subtitle {
      font-size: var(--text-xs);
      color: var(--color-text-muted);
      margin-top: var(--space-1);
    }

    /* ============================
       KPI CARDS ROW
       ============================ */
    .kpi-grid {
      display: grid;
      grid-template-columns: repeat(auto-fill, minmax(180px, 1fr));
      gap: var(--space-4);
    }

    /* Mobile KPI grid */
    @media (max-width: 480px) {
      .kpi-grid {
        grid-template-columns: repeat(auto-fill, minmax(140px, 1fr));
        gap: var(--space-3);
      }
    }

    .kpi-card {
      background: rgba(32, 36, 57, 0.72);
      border: 1px solid rgba(102, 108, 152, 0.25);
      border-radius: var(--radius-lg);
      padding: var(--space-4) var(--space-5);
      display: flex;
      flex-direction: column;
      gap: var(--space-2);
      box-shadow: 8px 8px 25px rgba(0,0,0,0.38), -4px -4px 14px rgba(102, 108, 152, 0.2);
      backdrop-filter: blur(6px);
      -webkit-backdrop-filter: blur(6px);
      transition: transform var(--transition), box-shadow var(--transition);
    }

    .kpi-card:hover {
      transform: translateY(-2px);
      box-shadow: 10px 10px 30px rgba(0,0,0,0.45), -5px -5px 18px rgba(110, 118, 160, 0.24);
    }

    @media (max-width: 480px) {
      .kpi-card {
        padding: var(--space-3) var(--space-3);
      }
    }

    .kpi-label {
      font-size: var(--text-xs);
      font-weight: 600;
      text-transform: uppercase;
      letter-spacing: 0.06em;
      color: var(--color-text-muted);
    }

    .kpi-value {
      font-size: var(--text-xl);
      font-weight: 700;
      font-family: var(--font-mono);
      font-variant-numeric: tabular-nums lining-nums;
      letter-spacing: -0.02em;
      line-height: 1;
    }

    .kpi-meta {
      display: flex;
      align-items: center;
      gap: var(--space-2);
    }

    .delta {
      display: inline-flex;
      align-items: center;
      gap: 2px;
      font-size: var(--text-xs);
      font-weight: 600;
      font-family: var(--font-mono);
      padding: 2px 6px;
      border-radius: var(--radius-sm);
    }

    .delta.up    { color: var(--color-success); background: var(--color-success-highlight); }
    .delta.down  { color: var(--color-error);   background: var(--color-error-highlight); }
    .delta.flat  { color: var(--color-neutral); background: var(--color-neutral-highlight); }

    .kpi-baseline {
      font-size: var(--text-xs);
      color: var(--color-text-faint);
    }

    /* ============================
       TRIGGER STATUS PANEL
       ============================ */
    .trigger-grid {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: var(--space-4);
    }

    @media (max-width: 900px) {
      .trigger-grid { grid-template-columns: 1fr; }
    }

    @media (max-width: 480px) {
      .trigger-grid {
        gap: var(--space-3);
      }
    }

    .trigger-card {
      background: var(--color-surface);
      border: 1px solid var(--color-border);
      border-radius: var(--radius-lg);
      overflow: hidden;
      box-shadow: var(--shadow-sm);
    }

    .trigger-header {
      padding: var(--space-4) var(--space-5);
      border-bottom: 1px solid var(--color-divider);
      display: flex;
      align-items: center;
      justify-content: space-between;
    }

    .trigger-ticker {
      font-size: var(--text-base);
      font-weight: 700;
      letter-spacing: -0.01em;
    }

    .trigger-ticker-sub {
      font-size: var(--text-xs);
      color: var(--color-text-muted);
      margin-top: 2px;
    }

    .status-pill {
      display: inline-flex;
      align-items: center;
      gap: var(--space-2);
      padding: var(--space-1) var(--space-3);
      border-radius: var(--radius-full, 9999px);
      font-size: var(--text-xs);
      font-weight: 700;
      text-transform: uppercase;
      letter-spacing: 0.05em;
    }

    .status-pill.ready  { background: var(--color-success-highlight); color: var(--color-success); }
    .status-pill.watch  { background: var(--color-warning-highlight); color: var(--color-warning); }
    .status-pill.wait   { background: var(--color-neutral-highlight); color: var(--color-neutral); }

    .trigger-conditions {
      padding: var(--space-4) var(--space-5);
      display: flex;
      flex-direction: column;
      gap: var(--space-3);
    }

    .condition-row {
      display: grid;
      grid-template-columns: 1fr auto auto;
      align-items: center;
      gap: var(--space-3);
      padding: var(--space-3);
      border-radius: var(--radius-md);
      border: 1px solid var(--color-divider);
      background: var(--color-surface-2);
    }

    .condition-label {
      font-size: var(--text-xs);
      font-weight: 600;
      color: var(--color-text-muted);
      text-transform: uppercase;
      letter-spacing: 0.05em;
    }

    .condition-value {
      font-size: var(--text-sm);
      font-weight: 700;
      font-family: var(--font-mono);
      font-variant-numeric: tabular-nums;
      text-align: right;
    }

    .condition-check {
      width: 22px;
      height: 22px;
      border-radius: 50%;
      display: flex;
      align-items: center;
      justify-content: center;
      flex-shrink: 0;
      font-size: 12px;
    }

    .condition-check.met     { background: var(--color-success); color: #fff; }
    .condition-check.not-met { background: var(--color-error-highlight); color: var(--color-error); border: 1px solid var(--color-error); }

    .condition-threshold {
      font-size: var(--text-xs);
      color: var(--color-text-faint);
      margin-top: 2px;
    }

    .trigger-summary {
      padding: var(--space-3) var(--space-5);
      border-top: 1px solid var(--color-divider);
      font-size: var(--text-xs);
      color: var(--color-text-muted);
    }

    /* ============================
       LOGIC NOTE
       ============================ */
    .logic-note {
      display: flex;
      align-items: flex-start;
      gap: var(--space-3);
      padding: var(--space-3) var(--space-4);
      background: var(--color-primary-highlight);
      border: 1px solid var(--color-primary);
      border-radius: var(--radius-md);
      font-size: var(--text-xs);
      color: var(--color-primary);
    }

    /* ============================
       CHART CARDS
       ============================ */
    .chart-row {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: var(--space-4);
    }

    @media (max-width: 900px) {
      .chart-row { grid-template-columns: 1fr; }
    }

    .chart-card {
      background: linear-gradient(145deg, rgba(30, 34, 49, 0.80), rgba(22, 26, 38, 0.65));
      border: 1px solid rgba(255, 255, 255, 0.18);
      border-radius: var(--radius-xl);
      padding: var(--space-5);
      box-shadow: 8px 8px 28px rgba(0, 0, 0, 0.42), -8px -8px 20px rgba(90, 100, 150, 0.2), inset 0 0 0 1px rgba(255, 255, 255, 0.08);
      backdrop-filter: blur(14px) saturate(180%);
      -webkit-backdrop-filter: blur(14px) saturate(180%);
      color: var(--color-text);
      transition: transform var(--transition), box-shadow var(--transition), border-color var(--transition), background var(--transition);
    }

    .chart-card:hover {
      transform: translateY(-2px);
      box-shadow: 10px 10px 34px rgba(0, 0, 0, 0.52), -10px -10px 22px rgba(110, 126, 170, 0.3), inset 0 0 0 1px rgba(255, 255, 255, 0.12);
    }

    .chart-wrap {
      height: 220px;
      position: relative;
      min-height: 140px;
      background: radial-gradient(circle at 35% 25%, rgba(94, 204, 255, 0.22), rgba(22,26,38,0.45));
      border: 1px solid rgba(173, 216, 255, 0.30);
      box-shadow: inset 0 1px 0 rgba(255,255,255,0.25), inset 0 -1px 0 rgba(0,0,0,0.30);
      border-radius: var(--radius-md);
      backdrop-filter: blur(12px) saturate(150%);
      -webkit-backdrop-filter: blur(12px) saturate(150%);
      padding: 0.45rem;
    }

    .portfolio-value {
      font-family: var(--font-mono);
      font-size: clamp(1rem, 1.25vw, 1.35rem);
      font-weight: 800;
      color: #ffffff;
      text-shadow: 0 0 8px rgba(31, 242, 255, 0.78);
      border: 1px solid rgba(255, 255, 255, 0.3);
      padding: 0.25rem 0.5rem;
      border-radius: var(--radius-md);
      background: rgba(16, 28, 50, 0.54);
      backdrop-filter: blur(4px);
      margin-left: auto;
    }

    /* Chart.js Legend Styling */
    .chartjs-legend {
      display: flex;
      flex-wrap: wrap;
      justify-content: center;
      gap: 8px;
      margin-top: 1rem;
    }

    .chartjs-legend li {
      display: flex;
      align-items: center;
      gap: 6px;
      padding: 6px 10px;
      border-radius: var(--radius-lg);
      background: rgba(255, 255, 255, 0.12);
      border: 1px solid rgba(255, 255, 255, 0.2);
      color: #ffffff;
      font-size: var(--text-xs);
      font-weight: 600;
      backdrop-filter: blur(6px);
      -webkit-backdrop-filter: blur(6px);
      transition: background var(--transition), transform var(--transition);
    }

    .chartjs-legend li:hover {
      background: rgba(255, 255, 255, 0.2);
      transform: scale(1.05);
    }

    .chartjs-legend li span {
      display: inline-block;
      width: 12px;
      height: 12px;
      border-radius: 50%;
      border: 1px solid rgba(255, 255, 255, 0.3);
    }

    .chart-header .chart-title {
      color: var(--color-text);
      text-shadow: 0 0 6px rgba(255,255,255,0.18);
    }

    .chart-header .chart-meta {
      color: var(--color-text-muted);
    }

    @media (max-width: 480px) {
      .chart-card {
        padding: var(--space-3) var(--space-4);
      }

      .chart-header {
        flex-direction: column;
        align-items: flex-start;
        gap: var(--space-2);
      }

      .chart-title {
        font-size: 0.875rem;
      }

      .chart-meta {
        font-size: 0.75rem;
      }
    }

    .chart-card-full {
      grid-column: 1 / -1;
    }

    .chart-header {
      display: flex;
      align-items: baseline;
      justify-content: space-between;
      margin-bottom: var(--space-4);
    }

    .chart-title {
      font-size: var(--text-sm);
      font-weight: 700;
    }

    .chart-meta {
      font-size: var(--text-xs);
      color: var(--color-text-faint);
    }

    .chart-wrap {
      height: 180px;
      position: relative;
      min-height: 120px;
    }

    @media (max-width: 480px) {
      .chart-wrap {
        height: 150px;
        min-height: 100px;
      }
    }

    /* ============================
       MONTHLY SCHEDULE TABLE
       ============================ */
    .monthly-table-wrap {
      background: var(--color-surface);
      border: 1px solid var(--color-border);
      border-radius: var(--radius-lg);
      overflow: hidden;
      box-shadow: var(--shadow-sm);
      overflow-x: auto;
    }

    /* Mobile table scroll */
    @media (max-width: 480px) {
      .monthly-table-wrap {
        border-radius: var(--radius-md);
      }
    }

    table {
      width: 100%;
      border-collapse: collapse;
    }

    thead th {
      position: sticky;
      top: 0;
      background: var(--color-surface-2);
      padding: var(--space-3) var(--space-4);
      font-size: var(--text-xs);
      font-weight: 700;
      text-transform: uppercase;
      letter-spacing: 0.06em;
      color: var(--color-text-muted);
      text-align: left;
      border-bottom: 1px solid var(--color-border);
      z-index: 1;
    }

    @media (max-width: 480px) {
      thead th {
        padding: var(--space-2) var(--space-3);
        font-size: 0.625rem;
      }
    }

    tbody tr {
      border-bottom: 1px solid var(--color-divider);
      transition: background var(--transition);
    }

    tbody tr:last-child {
      border-bottom: none;
    }

    tbody tr:hover {
      background: var(--color-surface-2);
    }

    tbody td {
      padding: var(--space-3) var(--space-4);
      font-size: var(--text-xs);
      font-variant-numeric: tabular-nums;
      vertical-align: middle;
    }

    @media (max-width: 480px) {
      tbody td {
        padding: var(--space-2) var(--space-3);
        font-size: 0.75rem;
      }
    }

    .td-mono {
      font-family: var(--font-mono);
      font-weight: 500;
    }

    /* ============================
       WEEK BADGE
       ============================ */
    .week-badge {
      display: inline-flex;
      align-items: center;
      gap: var(--space-1);
      padding: 2px var(--space-2);
      border-radius: var(--radius-sm);
      font-size: var(--text-xs);
      font-weight: 600;
      font-family: var(--font-mono);
    }

    /* ============================
       PROGRESS BAR
       ============================ */
    .progress-bar-wrap {
      background: var(--color-surface-offset);
      border-radius: var(--radius-full, 9999px);
      height: 6px;
      overflow: hidden;
      width: 80px;
    }

    .progress-bar-fill {
      height: 100%;
      border-radius: var(--radius-full, 9999px);
      transition: width 0.6s ease;
    }

    /* ============================
       FOOTER
       ============================ */
    .footer-attribution {
      text-align: center;
      padding: var(--space-4) 0;
      font-size: var(--text-xs);
      color: var(--color-text-faint);
    }

    .footer-attribution a {
      color: var(--color-primary);
      text-decoration: none;
    }

    .footer-attribution a:hover {
      text-decoration: underline;
    }

    /* ============================
       SPINNER OVERLAY
       ============================ */
    .loading-overlay {
      position: fixed;
      inset: 0;
      background: rgba(0,0,0,0.5);
      display: flex;
      align-items: center;
      justify-content: center;
      z-index: 9999;
      opacity: 0;
      pointer-events: none;
      transition: opacity 0.2s;
    }

    .loading-overlay.show {
      opacity: 1;
      pointer-events: all;
    }

    .loading-box {
      background: var(--color-surface);
      border: 1px solid var(--color-border);
      border-radius: var(--radius-lg);
      padding: var(--space-6) var(--space-8);
      text-align: center;
      display: flex;
      flex-direction: column;
      align-items: center;
      gap: var(--space-3);
      box-shadow: var(--shadow-lg);
    }

    /* ============================
       MOBILE ADJUSTMENTS
       ============================ */
    @media (max-width: 700px) {
      body {
        grid-template-columns: 1fr;
        grid-template-rows: 52px auto 1fr;
      }
      .sidebar { display: none; }
      .topbar { grid-column: 1; }
      .main { grid-column: 1; padding: var(--space-4); }
    }

    @media (max-width: 768px) {
      .topbar {
        justify-content: space-between;
      }

      .topbar-brand {
        display: flex;
        flex: 1;
        justify-content: center;
        order: 2;
      }

      .topbar-menu {
        order: 1;
      }

      .topbar-actions {
        order: 3;
      }
    }

    @media (max-width: 480px) {
      .chart-wrap {
        height: 380px;
        padding: 0.75rem;
      }

      .chartjs-legend {
        flex-direction: column;
        align-items: center;
        gap: 8px;
        max-height: 200px;
        overflow-y: auto;
        padding: 0.5rem;
        background: rgba(0,0,0,0.2);
        border-radius: var(--radius-md);
        margin-top: 1rem;
      }

      .chartjs-legend li {
        width: 100%;
        max-width: 240px;
        justify-content: center;
        padding: 10px 14px;
        border-radius: var(--radius-xl);
        font-size: var(--text-sm);
      }
    }

    /* Ultra-wide phones and smaller tablets (600px-768px) */
    @media (min-width: 481px) and (max-width: 768px) {
      body {
        grid-template-columns: 1fr;
      }
      
      .kpi-grid {
        grid-template-columns: repeat(auto-fill, minmax(160px, 1fr));
      }

      .chart-row {
        grid-template-columns: 1fr;
      }
    }

    /* Large desktop improvements */
    @media (min-width: 1440px) {
      .main {
        max-width: 1200px;
        margin: 0 auto;
      }

      .chart-row {
        grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
      }
    }

    /* Touch device optimizations */
    @media (hover: none) and (pointer: coarse) {
      .nav-item:active {
        background: var(--color-primary-highlight);
        color: var(--color-primary);
      }

      .btn:active {
        opacity: 0.8;
      }

      .btn-icon:active {
        background: var(--color-surface-offset);
      }
    }

    /* Landscape mode optimizations */
    @media (max-height: 600px) and (orientation: landscape) {
      body {
        height: 100vh;
      }

      .chart-wrap {
        height: 150px;
        min-height: 80px;
      }

      .topbar {
        min-height: 48px;
      }
    }

    /* Print styles */
    @media print {
      body {
        background: white;
      }

      .sidebar,
      .topbar,
      .loading-overlay {
        display: none !important;
      }

      .main {
        grid-column: 1;
        padding: 0;
      }
    }

    /* Accessibility: Reduced motion */
    @media (prefers-reduced-motion: reduce) {
      * {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
      }
    }

    /* Dark mode preference */
    @media (prefers-color-scheme: dark) {
      :root {
        color-scheme: dark;
      }
    }

    /* Light mode preference */
    @media (prefers-color-scheme: light) {
      :root {
        color-scheme: light;
      }
    }

    /* Numeric columns */
    .num { text-align: right; font-family: var(--font-mono); }

    .baseline-info {
      padding: var(--space-2) var(--space-3);
      font-size: var(--text-xs);
      color: var(--color-text-faint);
      line-height: 1.6;
    }

    .baseline-info strong {
      color: var(--color-text-muted);
    }

    .monthly-plan {
      display: flex;
      flex-direction: column;
      gap: var(--space-4);
    }

    .sidebar-footer a {
      color: var(--color-text-faint);
      text-decoration: none;
    }

    .loading-box span {
      font-size: var(--text-sm);
      color: var(--color-text-muted);
    }

    .monthly-table-wrap {
      margin-top: var(--space-4);
    }