:root {
    --lz-bg:#06070b;
    --lz-panel:#11151d;
    --lz-panel-2:#171d28;
    --lz-card:#0f141d;
    --lz-gold:#f3c14b;
    --lz-gold-2:#ffdf7a;
    --lz-red:#d94141;
    --lz-green:#38d07f;
    --lz-blue:#56a9ff;
    --lz-text:#f7f0df;
    --lz-muted:#aeb6c5;
    --lz-border:rgba(243,193,75,.28);
    --lz-border-soft:rgba(255,255,255,.10);
    --lz-shadow:0 18px 55px rgba(0,0,0,.48);
  }

  * { box-sizing:border-box; }

  body {
    margin:0;
    min-height:100vh;
    font-family:system-ui,-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,Arial,sans-serif;
    color:var(--lz-text);
    background:
      radial-gradient(circle at 15% -10%, rgba(217,65,65,.22), transparent 32rem),
      radial-gradient(circle at 90% 0%, rgba(243,193,75,.16), transparent 28rem),
      linear-gradient(180deg, #111721 0%, var(--lz-bg) 52%, #050608 100%);
  }

  a { color:var(--lz-gold-2); }

  .wrap {
    width:min(1220px, calc(100% - 28px));
    margin:0 auto;
    padding:28px 0 44px;
  }

  .hero {
    position:relative;
    overflow:hidden;
    border:1px solid var(--lz-border);
    border-radius:24px;
    padding:28px;
    background:
      linear-gradient(135deg, rgba(10,13,18,.95), rgba(27,34,48,.88)),
      radial-gradient(circle at 80% 20%, rgba(243,193,75,.18), transparent 20rem);
    box-shadow:var(--lz-shadow);
  }

  .hero::before {
    content:"";
    position:absolute;
    inset:0;
    background:
      linear-gradient(90deg, rgba(243,193,75,.08), transparent 40%),
      repeating-linear-gradient(135deg, rgba(255,255,255,.035) 0 1px, transparent 1px 12px);
    pointer-events:none;
  }

  .hero-inner { position:relative; z-index:1; }

  .eyebrow {
    display:inline-flex;
    align-items:center;
    gap:.45rem;
    margin-bottom:.75rem;
    padding:.32rem .72rem;
    border:1px solid var(--lz-border);
    border-radius:999px;
    color:#191203;
    background:linear-gradient(135deg, var(--lz-gold-2), var(--lz-gold));
    font-size:.77rem;
    font-weight:900;
    letter-spacing:.08em;
    text-transform:uppercase;
  }

  h1 {
    margin:0;
    font-size:clamp(2rem, 5vw, 4rem);
    line-height:.95;
    letter-spacing:-.04em;
    text-transform:uppercase;
  }

  .hero p {
    max-width:820px;
    margin:.9rem 0 0;
    color:var(--lz-muted);
    font-size:1rem;
    line-height:1.55;
  }

  .strategy-strip {
    display:grid;
    grid-template-columns:repeat(4, minmax(0,1fr));
    gap:.75rem;
    margin-top:1.15rem;
  }

  .strategy-pill {
    border:1px solid var(--lz-border-soft);
    border-radius:16px;
    padding:.85rem .9rem;
    background:rgba(0,0,0,.25);
  }

  .strategy-pill strong {
    display:block;
    color:var(--lz-gold-2);
    font-size:1.18rem;
  }

  .strategy-pill span {
    color:var(--lz-muted);
    font-size:.78rem;
    text-transform:uppercase;
    letter-spacing:.08em;
  }

  .layout {
    display:grid;
    grid-template-columns:360px 1fr;
    gap:18px;
    margin-top:18px;
  }

  .panel {
    border:1px solid var(--lz-border-soft);
    border-radius:22px;
    background:linear-gradient(180deg, rgba(23,29,40,.94), rgba(11,14,20,.94));
    box-shadow:var(--lz-shadow);
  }

  .controls {
    padding:18px;
    position:sticky;
    top:14px;
    align-self:start;
  }

  .results-panel { padding:18px; overflow:hidden; }

  .section-title {
    display:flex;
    align-items:flex-end;
    justify-content:space-between;
    gap:1rem;
    margin:0 0 12px;
  }

  h2 {
    margin:0;
    font-size:1.25rem;
    text-transform:uppercase;
    letter-spacing:.04em;
  }

  .muted { color:var(--lz-muted); }
  .small { font-size:.86rem; line-height:1.45; }

  label.control-label {
    display:block;
    margin:14px 0 6px;
    color:var(--lz-gold-2);
    font-weight:800;
    font-size:.82rem;
    letter-spacing:.05em;
    text-transform:uppercase;
  }

  input[type="number"] {
    width:100%;
    border:1px solid rgba(243,193,75,.24);
    border-radius:14px;
    background:#080b10;
    color:var(--lz-text);
    padding:12px 13px;
    font-size:1rem;
    outline:none;
  }

  input[type="number"]:focus {
    border-color:var(--lz-gold);
    box-shadow:0 0 0 3px rgba(243,193,75,.12);
  }

  button {
    width:100%;
    border:0;
    border-radius:14px;
    padding:12px 14px;
    cursor:pointer;
    color:#120d02;
    background:linear-gradient(135deg, var(--lz-gold-2), var(--lz-gold));
    font-weight:950;
    letter-spacing:.02em;
    text-transform:uppercase;
    box-shadow:0 8px 22px rgba(243,193,75,.18);
  }

  button:hover { filter:brightness(1.06); transform:translateY(-1px); }
  button:active { transform:translateY(0); }

  .run-btn { margin-top:14px; font-size:1rem; }

  .quick {
    display:grid;
    grid-template-columns:1fr 1fr;
    gap:8px;
    margin-top:12px;
  }

  .quick button {
    background:rgba(255,255,255,.06);
    color:var(--lz-text);
    border:1px solid var(--lz-border-soft);
    box-shadow:none;
    font-size:.72rem;
    padding:10px 8px;
  }

  .quick button:hover {
    border-color:var(--lz-border);
    color:var(--lz-gold-2);
  }

  .milestones {
    display:flex;
    flex-wrap:wrap;
    gap:6px;
    margin-top:12px;
  }

  .pill {
    display:inline-flex;
    align-items:center;
    justify-content:center;
    min-height:28px;
    padding:4px 10px;
    border-radius:999px;
    border:1px solid var(--lz-border);
    background:rgba(243,193,75,.08);
    color:var(--lz-gold-2);
    font-weight:850;
    font-size:.8rem;
  }

  .discount-tabs {
    display:flex;
    flex-wrap:wrap;
    gap:8px;
    margin:12px 0;
  }

  .tab-btn {
    width:auto;
    box-shadow:none;
    border:1px solid var(--lz-border-soft);
    background:rgba(255,255,255,.055);
    color:var(--lz-text);
    padding:9px 12px;
    font-size:.78rem;
  }

  .tab-btn.is-active {
    border-color:var(--lz-gold);
    background:linear-gradient(135deg, rgba(243,193,75,.95), rgba(255,223,122,.95));
    color:#120d02;
  }

  .discount-accordion {
    display:grid;
    gap:10px;
    max-height:560px;
    overflow:auto;
    padding-right:4px;
  }

  details.discount-panel {
    border:1px solid var(--lz-border-soft);
    border-radius:18px;
    background:rgba(0,0,0,.22);
  }

  details.discount-panel[open] {
    border-color:var(--lz-border);
    background:linear-gradient(180deg, rgba(243,193,75,.08), rgba(0,0,0,.22));
  }

  details.discount-panel summary {
    display:flex;
    align-items:center;
    justify-content:space-between;
    gap:10px;
    padding:12px 12px;
    cursor:pointer;
    list-style:none;
  }

  details.discount-panel summary::-webkit-details-marker { display:none; }

  .discount-name {
    display:flex;
    align-items:center;
    gap:8px;
    font-weight:950;
    text-transform:uppercase;
    letter-spacing:.04em;
  }

  .discount-dot {
    width:10px;
    height:10px;
    border-radius:999px;
    background:var(--lz-gold);
    box-shadow:0 0 14px rgba(243,193,75,.85);
  }

  .discount-meta {
    color:var(--lz-muted);
    font-size:.8rem;
  }

  .checks {
    display:grid;
    gap:7px;
    padding:0 10px 12px;
  }

  .check {
    display:grid;
    grid-template-columns:auto 1fr;
    gap:9px;
    align-items:center;
    padding:9px 10px;
    border:1px solid rgba(255,255,255,.08);
    border-radius:13px;
    background:rgba(255,255,255,.035);
    color:var(--lz-text);
    font-size:.88rem;
  }

  .check:hover {
    border-color:rgba(243,193,75,.35);
    background:rgba(243,193,75,.06);
  }

  .check input {
    width:18px;
    height:18px;
    accent-color:var(--lz-gold);
  }

  .item-type {
    display:block;
    font-weight:800;
    text-transform:capitalize;
  }

  .item-note {
    display:block;
    color:var(--lz-muted);
    font-size:.75rem;
    margin-top:2px;
  }

  .summary-cards {
    display:grid;
    grid-template-columns:repeat(3, minmax(0,1fr));
    gap:10px;
    margin:12px 0 14px;
  }

  .summary-card {
    border:1px solid var(--lz-border-soft);
    border-radius:18px;
    padding:13px;
    background:rgba(0,0,0,.22);
  }

  .summary-card span {
    display:block;
    color:var(--lz-muted);
    font-size:.76rem;
    text-transform:uppercase;
    letter-spacing:.08em;
  }

  .summary-card strong {
    display:block;
    margin-top:4px;
    color:var(--lz-gold-2);
    font-size:1.35rem;
  }

  .table-wrap {
    overflow:auto;
    border:1px solid var(--lz-border-soft);
    border-radius:18px;
  }

  table {
    width:100%;
    border-collapse:collapse;
    min-width:760px;
  }

  th, td {
    padding:12px 11px;
    text-align:left;
    border-bottom:1px solid rgba(255,255,255,.08);
  }

  th {
    position:sticky;
    top:0;
    z-index:1;
    background:#111722;
    color:var(--lz-gold-2);
    font-size:.74rem;
    text-transform:uppercase;
    letter-spacing:.08em;
  }

  td { color:#f4f0e7; }
  tbody tr:hover { background:rgba(243,193,75,.055); }

  .discount-badge {
    display:inline-flex;
    align-items:center;
    padding:3px 8px;
    margin-right:6px;
    border-radius:999px;
    border:1px solid var(--lz-border);
    color:var(--lz-gold-2);
    background:rgba(243,193,75,.08);
    font-size:.74rem;
    font-weight:900;
  }

  .empty {
    padding:18px;
    color:var(--lz-muted);
  }

  @media (max-width:920px) {
    .layout { grid-template-columns:1fr; }
    .controls { position:relative; top:auto; }
    .strategy-strip, .summary-cards { grid-template-columns:1fr 1fr; }
  }

  @media (max-width:560px) {
    .wrap { width:min(100% - 20px, 1220px); padding-top:12px; }
    .hero { padding:20px; border-radius:20px; }
    .strategy-strip, .summary-cards, .quick { grid-template-columns:1fr; }
    .tab-btn { flex:1 1 30%; }
  }