:root {
  color-scheme: light;
  --bg: #f5f6fb;
  --card: #ffffff;
  --text: #1c2033;
  --muted: #6b7188;
  --border: #e7e9f2;
  --grid: #eef0f6;
  --accent: #4f46e5;
  --accent-2: #6d66f0;
  --accent-soft: #eef0ff;
  --pos: #1f9d6b;
  --neu: #e0a526;
  --neg: #e0566b;
  --shadow: 0 1px 2px rgba(28, 32, 51, .04), 0 6px 20px rgba(28, 32, 51, .05);
  --shadow-hover: 0 2px 4px rgba(28, 32, 51, .05), 0 12px 30px rgba(79, 70, 229, .10);
  --radius: 16px;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0; color: var(--text); background: var(--bg);
  background-image: radial-gradient(900px 340px at 85% -80px, #e4e6ff 0%, rgba(228, 230, 255, 0) 70%),
                    radial-gradient(700px 300px at 0% -60px, #eaf6f1 0%, rgba(234, 246, 241, 0) 70%);
  background-repeat: no-repeat;
  font: 15px/1.55 "Inter", system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
  -webkit-font-smoothing: antialiased;
}

/* ---------- header ---------- */
.top { max-width: 1200px; margin: 0 auto; padding: 26px 16px 10px; display: flex; align-items: center; gap: 14px; }
.logo { width: 42px; height: 42px; border-radius: 12px; flex: none;
  background: linear-gradient(135deg, var(--accent), var(--accent-2));
  display: grid; place-items: center; box-shadow: 0 6px 16px rgba(79, 70, 229, .35); }
.logo svg { width: 22px; height: 22px; }
h1 { font-size: 1.35rem; margin: 0; letter-spacing: -.02em; line-height: 1.2; }
.tagline { margin: 2px 0 0; color: var(--muted); font-size: .85rem; }
h2 { font-size: .8rem; margin: 0 0 12px; color: var(--muted); font-weight: 600; letter-spacing: .06em; text-transform: uppercase; }
h3 { margin: 0; }

main { max-width: 1200px; margin: 0 auto; padding: 8px 16px 48px; display: grid; grid-template-columns: minmax(0, 1fr); gap: 16px; }
#results { min-width: 0; }
.muted { color: var(--muted); font-size: .85rem; }

.card { background: var(--card); border: 1px solid var(--border); border-radius: var(--radius);
  padding: 20px; min-width: 0; box-shadow: var(--shadow); transition: box-shadow .25s, transform .25s; }
.grid .card:hover { box-shadow: var(--shadow-hover); transform: translateY(-2px); }

/* ---------- controls ---------- */
.controls { display: flex; flex-wrap: wrap; gap: 14px; align-items: end; }
.controls label { display: grid; gap: 5px; font-size: .75rem; font-weight: 600; color: var(--muted); }
.controls .grow { flex: 1 1 260px; }
input, select, button, .btn { font: inherit; }
input, select { background: #fafbff; color: var(--text); border: 1px solid var(--border);
  border-radius: 10px; padding: 9px 12px; min-width: 0; font-weight: 400;
  transition: border-color .15s, box-shadow .15s, background .15s; }
input:hover, select:hover { border-color: #cfd3e6; }
input:focus, select:focus { outline: none; border-color: var(--accent); background: #fff; box-shadow: 0 0 0 4px rgba(79, 70, 229, .12); }
input[type=number] { width: 92px; }
#region { width: 60px; text-transform: uppercase; }

button, .btn { background: linear-gradient(135deg, var(--accent), var(--accent-2)); color: #fff; border: 0;
  border-radius: 10px; padding: 10px 20px; font-weight: 600; cursor: pointer; text-decoration: none;
  display: inline-block; box-shadow: 0 4px 12px rgba(79, 70, 229, .28);
  transition: transform .15s, box-shadow .15s, filter .15s; }
button:hover, .btn:hover { transform: translateY(-1px); box-shadow: 0 8px 18px rgba(79, 70, 229, .32); filter: brightness(1.04); }
button:active, .btn:active { transform: translateY(0); }
button:disabled { opacity: .6; cursor: wait; transform: none; }
button.ghost { background: #fff; color: var(--text); border: 1px solid var(--border); box-shadow: none; font-weight: 500; }
button.ghost:hover { border-color: var(--accent); color: var(--accent); box-shadow: none; filter: none; }
button.ghost:disabled { color: var(--muted); border-color: var(--border); }
:focus-visible { outline: 2px solid var(--accent); outline-offset: 2px; }
[hidden] { display: none !important; }

/* ---------- welcome ---------- */
.welcome { display: grid; gap: 14px; text-align: center; padding: 34px 20px; animation: fade .5s ease both;
  background: linear-gradient(180deg, #fff, #fafbff); }
.welcome h3 { font-size: 1.15rem; letter-spacing: -.01em; }
.welcome p { margin: 0 auto; max-width: 560px; color: var(--muted); }
.chips { display: flex; flex-wrap: wrap; gap: 8px; justify-content: center; }
.chip { background: var(--accent-soft); color: var(--accent); border: 1px solid #dfe2ff; border-radius: 99px;
  padding: 6px 14px; font-size: .82rem; font-weight: 500; cursor: pointer; box-shadow: none; }
.chip:hover { background: var(--accent); color: #fff; transform: translateY(-1px); box-shadow: 0 6px 14px rgba(79, 70, 229, .25); filter: none; }
.steps { display: flex; flex-wrap: wrap; gap: 10px 26px; justify-content: center; color: var(--muted); font-size: .8rem; }
.steps b { color: var(--accent); }

/* ---------- progress / messages ---------- */
#stage { font-weight: 500; }
.bar { height: 8px; background: var(--accent-soft); border-radius: 99px; margin-top: 12px; overflow: hidden; }
#bar-fill { height: 100%; width: 0; border-radius: 99px; transition: width .5s ease;
  background: linear-gradient(90deg, var(--accent), var(--accent-2), var(--accent));
  background-size: 200% 100%; animation: slide 1.6s linear infinite; }
.error { border-color: #f4c3cb; background: #fff6f7; color: #b4283f; }
.warn { border-color: #f3e0b0; background: #fffaf0; font-size: .85rem; color: #7a5b10; }

/* ---------- toolbar ---------- */
.toolbar { display: flex; flex-wrap: wrap; gap: 12px 16px; align-items: center; margin-bottom: 16px; }
.toolbar .btn { margin-left: auto; padding: 8px 16px; }
.seg { display: inline-flex; background: #e9ebf5; border-radius: 12px; padding: 4px; gap: 2px; }
.seg button { background: transparent; color: var(--muted); box-shadow: none; border-radius: 9px; padding: 7px 14px; font-weight: 500; }
.seg button:hover { transform: none; box-shadow: none; color: var(--text); filter: none; }
.seg button.on { background: #fff; color: var(--accent); box-shadow: 0 1px 4px rgba(28, 32, 51, .12); font-weight: 600; }

/* ---------- KPIs ---------- */
.kpis { display: grid; grid-template-columns: repeat(auto-fit, minmax(150px, 1fr)); gap: 14px; margin-bottom: 16px; }
.kpi { position: relative; background: var(--card); border: 1px solid var(--border); border-radius: var(--radius);
  padding: 16px 18px 15px; box-shadow: var(--shadow); overflow: hidden; transition: transform .25s, box-shadow .25s; }
.kpi:hover { transform: translateY(-2px); box-shadow: var(--shadow-hover); }
.kpi::before { content: ""; position: absolute; left: 0; top: 0; right: 0; height: 3px; background: var(--accent); opacity: .85; }
.kpi.pos::before { background: var(--pos); } .kpi.neu::before { background: var(--neu); } .kpi.neg::before { background: var(--neg); }
.kpi .v { font-size: 1.85rem; font-weight: 700; line-height: 1.15; letter-spacing: -.02em; font-variant-numeric: tabular-nums; }
.kpi .l { color: var(--muted); font-size: .78rem; margin-top: 2px; }
.kpi.pos .v { color: var(--pos); } .kpi.neu .v { color: #b9831a; } .kpi.neg .v { color: var(--neg); }

/* ---------- charts ---------- */
.grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 16px; margin-bottom: 16px; }
.grid .wide { grid-column: 1 / -1; }
.chart { position: relative; height: 270px; }
.chart.tall { height: 340px; }

/* ---------- table ---------- */
.filters { display: flex; flex-wrap: wrap; gap: 10px; margin-bottom: 14px; align-items: center; }
.filters input[type=search] { flex: 1 1 220px; }
.check { display: flex !important; flex-direction: row; gap: 7px; align-items: center; font-size: .85rem; font-weight: 500; color: var(--text); }
.check input { accent-color: var(--accent); width: 16px; height: 16px; }
.table-wrap { overflow-x: auto; border: 1px solid var(--border); border-radius: 12px; }
table { width: 100%; border-collapse: collapse; font-size: .86rem; min-width: 660px; }
th, td { text-align: left; padding: 11px 14px; border-bottom: 1px solid var(--border); vertical-align: top; }
th { color: var(--muted); font-weight: 600; font-size: .72rem; letter-spacing: .06em; text-transform: uppercase; background: #fafbff; }
tbody tr { transition: background .12s; }
tbody tr:hover { background: #f8f8ff; }
tbody tr:last-child td { border-bottom: 0; }
td.text { max-width: 480px; white-space: pre-wrap; word-break: break-word; }
.pill { padding: 3px 10px; border-radius: 99px; font-size: .72rem; font-weight: 600; white-space: nowrap; }
.pill.Positive { background: #e3f5ec; color: #14724d; }
.pill.Neutral { background: #fdf3da; color: #8a6210; }
.pill.Negative { background: #fde6ea; color: #b4283f; }
.flag { color: var(--neu); }
td a { color: var(--accent); text-decoration: none; }
td a:hover { text-decoration: underline; }
.pager { display: flex; justify-content: center; align-items: center; gap: 14px; margin-top: 14px; }

/* ---------- motion ---------- */
@keyframes fade { from { opacity: 0; transform: translateY(10px); } to { opacity: 1; transform: none; } }
@keyframes slide { from { background-position: 0 0; } to { background-position: -200% 0; } }
#results:not([hidden]) .kpi, #results:not([hidden]) .grid .card, #results:not([hidden]) > .card { animation: fade .55s ease both; }
.kpi:nth-child(2) { animation-delay: .05s !important; } .kpi:nth-child(3) { animation-delay: .1s !important; }
.kpi:nth-child(4) { animation-delay: .15s !important; } .kpi:nth-child(5) { animation-delay: .2s !important; }
.kpi:nth-child(6) { animation-delay: .25s !important; }
.grid .card:nth-child(2) { animation-delay: .08s !important; } .grid .card:nth-child(3) { animation-delay: .14s !important; }
.grid .card:nth-child(4) { animation-delay: .2s !important; } .grid .card:nth-child(5) { animation-delay: .26s !important; }
.grid .card:nth-child(6) { animation-delay: .32s !important; }
@media (prefers-reduced-motion: reduce) { * { animation: none !important; transition: none !important; } }

@media (max-width: 720px) {
  .grid { grid-template-columns: 1fr; }
  .toolbar .btn { margin-left: 0; }
  .controls button[type=submit] { width: 100%; }
  .kpi .v { font-size: 1.5rem; }
  .card { padding: 16px; }
  h1 { font-size: 1.15rem; }
}

/* ---------- budget optimizer ---------- */
#budget .controls { margin: 12px 0; }
.error-text { color: var(--neg); font-weight: 600; margin: 8px 0; }
.b-headline { font-weight: 600; margin: 8px 0 16px; }
.b-grid { display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 1.4fr); gap: 20px; align-items: center; }
.b-cards { display: grid; gap: 10px; }
.b-card { border: 1px solid var(--border); border-left-width: 6px; border-radius: 12px; padding: 12px 14px; background: var(--card); }
.b-card .top-row { display: flex; justify-content: space-between; gap: 10px; font-weight: 700; }
.b-card .sub { color: var(--muted); font-size: .85rem; margin-top: 2px; }
.b-phases { display: grid; grid-template-columns: repeat(auto-fit, minmax(200px, 1fr)); gap: 10px; margin-bottom: 12px; }
.b-phase { background: var(--accent-soft); border-radius: 12px; padding: 12px 14px; }
.b-phase b { display: block; }
.b-risks { margin: 8px 0; padding-left: 20px; color: var(--neg); }
@media (max-width: 720px) { .b-grid { grid-template-columns: minmax(0, 1fr); } }