/* style.css — Factorio Ratio Optimizer. Dark theme, mobile-first, CSS-variabelen. */
:root {
  --bg: #14171c;
  --panel: #1d2128;
  --panel-2: #242933;
  --border: #2e343f;
  --text: #e7ebf0;
  --muted: #9aa4b2;
  --accent: #ff9a3c;       /* Factorio-oranje */
  --accent-2: #ffc163;
  --good: #4ade80;
  --warn: #fbbf24;
  --bad: #f87171;
  --fluid: #5eb1ff;
  --radius: 10px;
  --shadow: 0 2px 10px rgba(0, 0, 0, 0.35);
  font-size: 16px;
}

* { box-sizing: border-box; }
/* Zorg dat het `hidden`-attribuut wint van class-display-regels (flex/grid). */
[hidden] { display: none !important; }

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
  line-height: 1.45;
  padding-bottom: env(safe-area-inset-bottom);
}

/* Header */
.app-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  padding: 14px 18px;
  background: linear-gradient(180deg, #20242c, #181b21);
  border-bottom: 1px solid var(--border);
  position: sticky;
  top: 0;
  z-index: 20;
}
.brand { display: flex; align-items: center; gap: 10px; }
.brand-mark { font-size: 1.6rem; color: var(--accent); filter: drop-shadow(0 0 6px rgba(255, 154, 60, 0.4)); }
.app-header h1 { font-size: 1.1rem; margin: 0; font-weight: 650; letter-spacing: 0.2px; }
.dataset-badge {
  font-size: 0.72rem;
  color: var(--muted);
  background: var(--panel-2);
  border: 1px solid var(--border);
  padding: 3px 9px;
  border-radius: 999px;
  white-space: nowrap;
}

.app-main { max-width: 920px; margin: 0 auto; padding: 16px; }

.panel {
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
}

/* Controls */
.controls {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
  gap: 14px;
  padding: 16px;
  margin-bottom: 16px;
}
.field { display: flex; flex-direction: column; gap: 6px; min-width: 0; }
.field-target { grid-column: 1 / -1; }
.field label { font-size: 0.74rem; text-transform: uppercase; letter-spacing: 0.06em; color: var(--muted); }

input, select, button { font: inherit; color: var(--text); }
input[type="number"], select {
  background: var(--panel-2);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 9px 10px;
  outline: none;
}
input[type="number"]:focus, select:focus { border-color: var(--accent); }
.rate-row { display: flex; gap: 8px; }
.rate-row input { flex: 1; min-width: 0; }
.rate-row select { flex: 0 0 auto; }

/* Advanced (modules & beacons) */
.adv { padding: 0; margin-bottom: 16px; }
.adv summary {
  cursor: pointer; padding: 14px 16px; font-weight: 600; font-size: 0.92rem;
  list-style: none; display: flex; align-items: center; gap: 10px;
}
.adv summary::-webkit-details-marker { display: none; }
.adv summary::before { content: '▸'; color: var(--accent); transition: transform 0.15s; }
.adv[open] summary::before { transform: rotate(90deg); }
.adv-hint { color: var(--muted); font-weight: 400; font-size: 0.82rem; }
.adv-grid {
  display: grid; grid-template-columns: repeat(auto-fit, minmax(160px, 1fr));
  gap: 14px; padding: 0 16px 16px;
}

/* Recipe-override select in resultaten */
select.recipe-ovr {
  background: transparent; border: 1px solid transparent; color: var(--muted);
  font-size: 0.78rem; padding: 1px 4px; border-radius: 5px; max-width: 220px;
  cursor: pointer; margin-top: 2px;
}
select.recipe-ovr:hover { border-color: var(--border); color: var(--text); }

/* Item picker */
.item-picker { position: relative; }
.picker-button {
  width: 100%;
  display: flex;
  align-items: center;
  gap: 10px;
  background: var(--panel-2);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 8px 12px;
  cursor: pointer;
  text-align: left;
}
.picker-button:hover { border-color: var(--accent); }
.picker-button .chev { margin-left: auto; color: var(--muted); }
.picker-pop {
  position: absolute;
  top: calc(100% + 6px);
  left: 0; right: 0;
  background: var(--panel-2);
  border: 1px solid var(--border);
  border-radius: 8px;
  box-shadow: var(--shadow);
  z-index: 30;
  padding: 8px;
  max-height: 360px;
  display: flex;
  flex-direction: column;
}
.picker-pop input {
  width: 100%;
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: 6px;
  padding: 8px 10px;
  margin-bottom: 8px;
}
.picker-list { list-style: none; margin: 0; padding: 0; overflow-y: auto; }
.picker-list li {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 6px 8px;
  border-radius: 6px;
  cursor: pointer;
}
.picker-list li:hover, .picker-list li.active { background: rgba(255, 154, 60, 0.14); }
.picker-list .muted { color: var(--muted); font-size: 0.8rem; margin-left: auto; }

/* Icons */
.icon {
  display: inline-block;
  background-repeat: no-repeat;
  flex: 0 0 auto;
  vertical-align: middle;
  image-rendering: auto;
}

/* Opgeslagen fabrieken */
.saves { padding: 12px 16px; margin-bottom: 16px; }
.saves-row { display: flex; flex-wrap: wrap; align-items: center; gap: 8px; }
.saves-row .spacer { flex: 1 1 20px; }
.saves-row input#save-name { flex: 0 1 180px; background: var(--panel-2); border: 1px solid var(--border); border-radius: 8px; padding: 8px 10px; }
.saves-row select { background: var(--panel-2); border: 1px solid var(--border); border-radius: 8px; padding: 8px 10px; min-width: 130px; }
.btn {
  background: var(--accent); color: #1a1206; border: none; border-radius: 8px;
  padding: 8px 14px; font-weight: 600; cursor: pointer;
}
.btn:hover { background: var(--accent-2); }
.btn-ghost { background: var(--panel-2); color: var(--text); border: 1px solid var(--border); }
.btn-ghost:hover { background: var(--border); }

/* Summary cards */
.summary-cards {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(140px, 1fr));
  gap: 12px;
  margin-bottom: 16px;
}
.card {
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 14px;
}
.card .k { font-size: 0.74rem; color: var(--muted); text-transform: uppercase; letter-spacing: 0.05em; }
.card .v { font-size: 1.5rem; font-weight: 700; margin-top: 4px; }
.card .v small { font-size: 0.9rem; font-weight: 500; color: var(--muted); }

/* Warnings */
.warn-box {
  border: 1px solid;
  border-radius: 8px;
  padding: 10px 12px;
  margin-bottom: 12px;
  font-size: 0.88rem;
  display: flex;
  gap: 8px;
  align-items: flex-start;
}
.warn-box.cycle { border-color: var(--bad); background: rgba(248, 113, 113, 0.08); }
.warn-box.byproduct { border-color: var(--warn); background: rgba(251, 191, 36, 0.07); }
.warn-box.info { border-color: var(--border); background: var(--panel); color: var(--muted); }
.warn-box ul { margin: 4px 0 0; padding-left: 18px; }

/* Results table */
.results { padding: 6px 0; overflow: hidden; }
.results h2 { font-size: 0.95rem; margin: 12px 16px 8px; color: var(--muted); }
.steps { width: 100%; border-collapse: collapse; font-size: 0.92rem; }
.steps th, .steps td { padding: 9px 12px; text-align: left; border-top: 1px solid var(--border); }
.steps th { font-size: 0.72rem; text-transform: uppercase; letter-spacing: 0.05em; color: var(--muted); font-weight: 600; }
.steps tbody tr:hover { background: rgba(255, 255, 255, 0.02); }
.steps .item-cell { display: flex; align-items: center; gap: 9px; }
.steps .count { font-weight: 700; color: var(--accent-2); white-space: nowrap; }
.steps .count .exact { color: var(--muted); font-weight: 400; font-size: 0.82rem; margin-left: 4px; }
.steps .machine-cell { display: flex; align-items: center; gap: 8px; color: var(--muted); }
.steps .rate { white-space: nowrap; font-variant-numeric: tabular-nums; }
.steps .fluid .rate { color: var(--fluid); }
.steps .belts { color: var(--muted); font-variant-numeric: tabular-nums; white-space: nowrap; }
.depth-pill {
  display: inline-block; min-width: 18px; text-align: center;
  font-size: 0.72rem; color: var(--muted);
  background: var(--panel-2); border-radius: 4px; padding: 1px 5px;
}

.raw-list { display: flex; flex-wrap: wrap; gap: 8px; padding: 6px 16px 16px; }
.raw-chip {
  display: flex; align-items: center; gap: 7px;
  background: var(--panel-2); border: 1px solid var(--border);
  border-radius: 999px; padding: 5px 11px 5px 7px; font-size: 0.86rem;
  font-variant-numeric: tabular-nums;
}
.raw-chip.fluid { border-color: rgba(94, 177, 255, 0.4); }
.raw-chip.unresolved { border-color: var(--warn); }

.loading { text-align: center; color: var(--muted); padding: 40px 0; }
.app-footer { max-width: 920px; margin: 0 auto; padding: 14px 16px 28px; color: var(--muted); font-size: 0.78rem; }

@media (max-width: 560px) {
  .app-header h1 { font-size: 0.98rem; }
  .steps .hide-sm { display: none; }
  .app-main { padding: 12px; }
}