/* ── Global: disable text selection on app UI ── */
    /* Hide scrollbar */
    ::-webkit-scrollbar { display: none; }
    html { scrollbar-width: none; }
    body {
      -webkit-user-select: none;
      user-select: none;
      -webkit-touch-callout: none;
      scroll-behavior: smooth;
      overscroll-behavior-y: none;
    }
    html {
      scroll-behavior: smooth;
      background: var(--bg);
    }
    input, textarea, [contenteditable] {
      -webkit-user-select: text;
      user-select: text;
    }
    /* Lock scroll when interacting with charts/bars */
    body.interaction-lock {
      overflow: hidden !important;
      touch-action: none !important;
    }

    /* ── Portrait lock overlay (mobile landscape) ── */
    @media (orientation: landscape) and (max-width: 932px) {
      .landscape-block {
        display: flex !important;
      }
    }
    .landscape-block {
      display: none !important;
      position: fixed;
      inset: 0;
      z-index: 99999;
      background: var(--bg, #0B0E1A);
      color: var(--text-1, #fff);
      flex-direction: column;
      align-items: center;
      justify-content: center;
      gap: 16px;
      font-family: var(--font-sans, sans-serif);
      font-size: 16px;
      text-align: center;
      padding: 24px;
    }
    .landscape-block svg {
      width: 48px;
      height: 48px;
      stroke: var(--text-2, #999);
      stroke-width: 1.5;
      fill: none;
      animation: rotatePhone 1.5s ease-in-out infinite;
    }
    @keyframes rotatePhone {
      0%, 100% { transform: rotate(90deg); }
      50% { transform: rotate(0deg); }
    }

    *, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
    :root {
      --content-px: 16px;
      /* Font stacks */
      --font-sans: 'Inter', -apple-system, 'SF Pro Display', 'SF Pro Text', BlinkMacSystemFont, sans-serif;
      --font-display: 'DM Serif Display', Georgia, serif;
      --font-mono: 'DM Mono', 'SF Mono', ui-monospace, monospace;
      /* Letter-spacing scale */
      --ls-tight: -0.02em;
      --ls-slight: 0.04em;
      --ls-wide: 0.1em;
      --ls-caps: 0.5px;
      --ls-spread: 1px;
      /* Line-height scale */
      --lh-none: 1;
      --lh-tight: 1.2;
      --lh-normal: 1.4;
      --lh-relaxed: 1.6;
      /* Animation tokens (theme-independent) */
      --duration-fast: 0.15s;
      --duration-normal: 0.25s;
      --duration-slow: 0.4s;
      --duration-enter: 0.6s;
      --ease-out: cubic-bezier(0.16, 1, 0.3, 1);
      --ease-spring: cubic-bezier(0.34, 1.4, 0.64, 1);
    }

    /* ── Theme transition (View Transitions API) ── */
    ::view-transition-old(root),
    ::view-transition-new(root) {
      animation-duration: 0.35s;
      animation-timing-function: ease-in-out;
    }
    /* Fallback for browsers without View Transitions */
    .theme-transitioning,
    .theme-transitioning *,
    .theme-transitioning *::before,
    .theme-transitioning *::after {
      transition: background var(--duration-slow) ease-in-out,
                  background-color var(--duration-slow) ease-in-out,
                  color var(--duration-slow) ease-in-out,
                  border-color var(--duration-slow) ease-in-out,
                  box-shadow var(--duration-slow) ease-in-out,
                  fill var(--duration-slow) ease-in-out,
                  stroke var(--duration-slow) ease-in-out !important;
    }

    /* ── Dark theme ── */
    [data-theme="dark"] {
      --bg: #0B0E1A;
      --glass-bg: rgba(20, 25, 45, 0.6);
      --glass-border: rgba(255,255,255,0.08);
      --glass-shine: rgba(255,255,255,0.03);
      --glass-glow: transparent;
      --shadow-sm: 0 1px 2px rgba(5,10,30,0.3), 0 0 0 1px rgba(255,255,255,0.04);
      --shadow-md:
        inset 0 1px 0 0 rgba(255,255,255,0.04),
        inset 0 0 0 1px rgba(255,255,255,0.04),
        0 0 0 1px rgba(5,10,30,0.15),
        0 2px 2px 0 rgba(5,10,30,0.15),
        0 4px 4px 0 rgba(5,10,30,0.15),
        0 8px 8px 0 rgba(5,10,30,0.15);
      --shadow-lg: 0 8px 32px rgba(5,10,30,0.5), 0 2px 8px rgba(5,10,30,0.3), inset 0 1px 0 rgba(255,255,255,0.05);
      --shadow-xl: 0 16px 48px rgba(5,10,30,0.5), 0 4px 12px rgba(5,10,30,0.3);
      --shadow-elevated: var(--shadow-md);
      --shadow-card: var(--shadow-md);
      --shadow-subtle: var(--shadow-sm);
      --card-loss-bg: transparent;
      --card-loss-bdr: transparent;
      --emerald: #30d158;
      --emerald-dim: #28b74c;
      --red: #ff453a;
      --amber: #e8a435;
      --blue: #4A7CFF;
      --text-1: #e5e5e5;
      --text-2: rgba(255,255,255,0.55);
      --text-3: rgba(255,255,255,0.38);
      --label-color: rgba(255,255,255,0.38);
      --divider: rgba(255,255,255,0.06);
      --nav-bg: rgba(11,14,26,0.92);
      --nav-border: rgba(255,255,255,0.06);
      --hover-bg: rgba(255,255,255,0.03);
      --surface-hover: rgba(255,255,255,0.04);
      --surface-active: rgba(255,255,255,0.08);
      --surface-subtle: rgba(74,124,255,0.06);
      --border-subtle: rgba(255,255,255,0.06);
      --border-medium: rgba(255,255,255,0.1);
      --border-strong: rgba(255,255,255,0.15);
      --toggle-bg: rgba(255,255,255,0.04);
      --toggle-border: rgba(255,255,255,0.08);
      --table-head-bg: rgba(11,14,26,0.9);
      --card-bg-solid: #131729;
      --card-bg-solid-hover: #1a1f35;
      --seg-pill-bg: #1a1f35;
      --row-border: rgba(255,255,255,0.04);
    }

    /* ── Light theme ── */
    [data-theme="light"] {
      --bg: #f8f9fc;
      --glass-bg: rgba(255,255,255,0.8);
      --glass-border: rgba(0,0,0,0.04);
      --glass-shine: rgba(255,255,255,0.6);
      --glass-glow: transparent;
      --shadow-sm: 0 1px 3px rgba(0,0,0,0.04), 0 0 0 1px rgba(0,0,0,0.02);
      --shadow-md:
        0 0 0 1px rgba(0,0,0,0.03),
        0 1px 2px rgba(0,0,0,0.04),
        0 4px 8px rgba(0,0,0,0.04),
        0 8px 16px rgba(0,0,0,0.02);
      --shadow-lg: 0 4px 24px rgba(0,0,0,0.08), 0 1px 4px rgba(0,0,0,0.04);
      --shadow-xl: 0 12px 40px rgba(0,0,0,0.10), 0 4px 12px rgba(0,0,0,0.04);
      --shadow-elevated: var(--shadow-md);
      --shadow-card: var(--shadow-md);
      --shadow-subtle: var(--shadow-sm);
      --card-loss-bg: transparent;
      --card-loss-bdr: transparent;
      --emerald: #16a34a;
      --emerald-dim: #15803d;
      --red: #dc2626;
      --amber: #d97706;
      --blue: #3b82f6;
      --text-1: #0f172a;
      --text-2: rgba(15,23,42,0.6);
      --text-3: rgba(15,23,42,0.4);
      --label-color: rgba(15,23,42,0.4);
      --divider: rgba(15,23,42,0.06);
      --nav-bg: rgba(248,249,252,0.92);
      --nav-border: rgba(15,23,42,0.06);
      --hover-bg: rgba(59,130,246,0.04);
      --surface-hover: rgba(15,23,42,0.03);
      --surface-active: rgba(59,130,246,0.08);
      --surface-subtle: rgba(59,130,246,0.04);
      --border-subtle: rgba(15,23,42,0.06);
      --border-medium: rgba(15,23,42,0.08);
      --border-strong: rgba(15,23,42,0.12);
      --toggle-bg: rgba(15,23,42,0.03);
      --toggle-border: rgba(15,23,42,0.06);
      --table-head-bg: rgba(248,249,252,0.95);
      --card-bg-solid: #ffffff;
      --card-bg-solid-hover: #f1f5f9;
      --seg-pill-bg: #e2e8f0;
      --row-border: rgba(15,23,42,0.04);
    }

    /* ── System Modal (replaces alert/confirm/prompt for iOS) ── */
    .zad-modal-overlay {
      position: fixed; inset: 0; z-index: 10000;
      background: rgba(0,0,0,0.5);
      display: flex; align-items: center; justify-content: center;
      opacity: 0; pointer-events: none;
      transition: opacity var(--duration-normal) var(--ease-out);
      padding: 24px;
    }
    .zad-modal-overlay.open { opacity: 1; pointer-events: auto; }
    .zad-modal {
      background: var(--card-bg-solid);
      border-radius: 16px;
      width: 100%; max-width: 320px;
      box-shadow: var(--shadow-xl);
      overflow: hidden;
      transform: scale(0.95);
      transition: transform var(--duration-normal) var(--ease-spring);
    }
    .zad-modal-overlay.open .zad-modal { transform: scale(1); }
    .zad-modal-body {
      padding: 20px 20px 12px;
      font-size: 14px; line-height: var(--lh-normal);
      color: var(--text-1); text-align: center;
    }
    .zad-modal-input {
      display: block; width: calc(100% - 40px); margin: 0 20px 12px;
      padding: 10px 12px; font-size: 14px;
      background: var(--hover-bg); border: 1px solid var(--divider);
      border-radius: 8px; color: var(--text-1);
      font-family: var(--font-sans);
      outline: none;
    }
    .zad-modal-input:focus { border-color: var(--blue); }
    .zad-modal-actions {
      display: flex; border-top: 1px solid var(--divider);
    }
    .zad-modal-actions button {
      flex: 1; padding: 14px 8px;
      font-size: 14px; font-weight: 500;
      background: none; border: none;
      color: var(--blue); cursor: pointer;
      font-family: var(--font-sans);
      transition: background var(--duration-fast) ease;
    }
    .zad-modal-actions button:active { background: var(--hover-bg); }
    .zad-modal-actions button + button { border-left: 1px solid var(--divider); }
    .zad-modal-actions button.zad-modal-cancel { color: var(--text-2); }
    .zad-modal-actions button.zad-modal-destructive { color: var(--red); }

    /* ── Offline Banner ── */
    .zad-offline-banner {
      position: fixed; top: env(safe-area-inset-top, 0px); left: 0; right: 0;
      z-index: 9999;
      background: var(--red);
      color: #fff; font-size: 12px; font-weight: 500;
      display: flex; align-items: center; justify-content: center; gap: 6px;
      padding: 6px 16px;
      transition: transform var(--duration-normal) var(--ease-out);
    }
    .zad-offline-banner[style*="display:none"] { transform: translateY(-100%); }

    /* ── Minimal: softer radius on content cards ── */
    .summary-card,
    .hero-card,
    .metric-pill,
    .insight-card,
    .breakdown-section,
    .chart-card {
      border-radius: 14px;
    }