/* マルミ屋 単価計算 PWA — iOS風・モバイル優先・ライト/ダーク両対応 */
:root {
  --accent: #0a84ff;
  --accent-weak: #e8f2ff;
  --bg: #f2f2f7;
  --card: #ffffff;
  --card-2: #f7f7fa;
  --border: #e3e3e8;
  --text: #1c1c1e;
  --text2: #6b6b70;
  --text3: #9a9aa0;
  --ng: #ff3b30;
  --green: #34c759;
  --shadow: 0 1px 3px rgba(0,0,0,.06), 0 6px 20px rgba(0,0,0,.05);
  --radius: 16px;
}
@media (prefers-color-scheme: dark) {
  :root {
    --accent: #0a84ff;
    --accent-weak: #12233a;
    --bg: #000000;
    --card: #1c1c1e;
    --card-2: #2c2c2e;
    --border: #38383a;
    --text: #f5f5f7;
    --text2: #a1a1a6;
    --text3: #7c7c81;
    --shadow: 0 1px 3px rgba(0,0,0,.4);
  }
}

* { box-sizing: border-box; -webkit-tap-highlight-color: transparent; }
html, body { margin: 0; padding: 0; }
body {
  font-family: -apple-system, "Hiragino Kaku Gothic ProN", "Yu Gothic UI",
               "Segoe UI", system-ui, sans-serif;
  background: var(--bg);
  color: var(--text);
  -webkit-font-smoothing: antialiased;
  padding-bottom: env(safe-area-inset-bottom);
}

/* ヘッダー */
.app-header {
  position: sticky; top: 0; z-index: 20;
  display: flex; align-items: center; gap: 4px;
  padding: calc(env(safe-area-inset-top) + 10px) 16px 10px;
  background: color-mix(in srgb, var(--bg) 80%, transparent);
  backdrop-filter: saturate(180%) blur(20px);
  -webkit-backdrop-filter: saturate(180%) blur(20px);
  border-bottom: 0.5px solid var(--border);
}
.back-btn {
  border: 0; background: none; color: var(--accent);
  font-size: 30px; line-height: 1; padding: 0 8px 0 0; cursor: pointer;
}
.app-header-title { display: flex; flex-direction: column; }
.brand { font-size: 11px; color: var(--text3); letter-spacing: .08em; }
.screen-title { font-size: 20px; font-weight: 700; letter-spacing: .01em; }

.app-main { max-width: 560px; margin: 0 auto; padding: 16px; }
.view { animation: fade .18s ease; }
@keyframes fade { from { opacity: 0; transform: translateY(4px); } to { opacity: 1; transform: none; } }

/* ポータルのカード */
.card-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; }
.card {
  display: flex; flex-direction: column; gap: 4px; text-align: left;
  padding: 18px 16px; min-height: 120px;
  border: 0; border-radius: var(--radius);
  background: var(--card); box-shadow: var(--shadow);
  color: var(--text); cursor: pointer;
  transition: transform .12s ease;
}
.card-active:active { transform: scale(.97); }
.card-icon { font-size: 28px; }
.card-name { font-size: 17px; font-weight: 700; }
.card-desc { font-size: 12px; color: var(--text2); }
.card-active { grid-column: 1 / -1; background: linear-gradient(135deg, var(--accent), #4aa5ff); color: #fff; }
.card-active .card-desc { color: rgba(255,255,255,.85); }
.card-soon { opacity: .55; cursor: default; }
.portal-note { color: var(--text3); font-size: 12px; text-align: center; margin-top: 20px; }
.data-status { display: flex; align-items: center; justify-content: center; gap: 12px; margin-top: 22px; flex-wrap: wrap; }
.data-note { color: var(--text3); font-size: 12px; }
.text-btn { border: 0; background: none; color: var(--accent); font-size: 13px; font-weight: 600; cursor: pointer; padding: 4px 6px; }
.text-btn:active { opacity: .6; }

/* 検索 */
.search-wrap { position: relative; margin-bottom: 14px; }
.search-input {
  width: 100%; padding: 13px 14px; font-size: 17px;
  border: 0.5px solid var(--border); border-radius: 12px;
  background: var(--card); color: var(--text); outline: none;
}
.search-input:focus { border-color: var(--accent); }
.search-results {
  list-style: none; margin: 6px 0 0; padding: 6px;
  background: var(--card); border-radius: 12px; box-shadow: var(--shadow);
  max-height: 46vh; overflow-y: auto; position: absolute; left: 0; right: 0; z-index: 10;
}
.search-results li {
  padding: 11px 12px; border-radius: 8px; cursor: pointer;
  display: flex; justify-content: space-between; gap: 10px; align-items: baseline;
}
.search-results li:active { background: var(--accent-weak); }
.sr-name { font-size: 15px; }
.sr-maker { font-size: 11px; color: var(--text3); white-space: nowrap; }
.sr-empty { color: var(--text3); font-size: 13px; padding: 12px; text-align: center; }

/* 商品パネル */
.product-panel {
  background: var(--card); border-radius: var(--radius);
  box-shadow: var(--shadow); padding: 16px;
}
.product-head { display: flex; justify-content: space-between; align-items: flex-start; gap: 10px; }
.p-name { font-size: 18px; font-weight: 700; line-height: 1.3; }
.p-meta { font-size: 12px; color: var(--text2); margin-top: 3px; }
.tax-badge {
  flex: none; font-size: 12px; font-weight: 700; padding: 4px 9px;
  border-radius: 999px; background: var(--accent-weak); color: var(--accent);
}

.field-label { font-size: 12px; color: var(--text2); margin: 18px 0 7px; }

/* セグメント（仕入基準） */
.segment { display: flex; gap: 4px; background: var(--card-2); border-radius: 10px; padding: 3px; flex-wrap: wrap; }
.seg-btn {
  flex: 1 1 auto; min-width: 68px; border: 0; background: none; cursor: pointer;
  padding: 9px 6px; border-radius: 8px; font-size: 13px; color: var(--text2);
}
.seg-btn.on { background: var(--card); color: var(--text); font-weight: 700; box-shadow: 0 1px 2px rgba(0,0,0,.12); }

.cost-line, .taxin-line {
  display: flex; justify-content: space-between; align-items: baseline;
  margin-top: 12px; font-size: 14px; color: var(--text2);
}
.cost-value { font-size: 20px; font-weight: 700; color: var(--text); font-variant-numeric: tabular-nums; }
.taxin-value { font-size: 17px; font-weight: 600; color: var(--text); font-variant-numeric: tabular-nums; }

/* 双方向計算 */
.calc-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 10px; margin-top: 16px; }
.calc-cell {
  display: flex; flex-direction: column; gap: 5px;
  background: var(--card-2); border-radius: 12px; padding: 11px 12px;
}
.calc-cap { font-size: 12px; color: var(--text2); }
.calc-input-wrap { display: flex; align-items: baseline; gap: 3px; }
.calc-input {
  width: 100%; border: 0; background: none; outline: none;
  font-size: 26px; font-weight: 700; color: var(--text);
  font-variant-numeric: tabular-nums; min-width: 0;
}
.calc-input:focus { color: var(--accent); }
.calc-cell:focus-within { outline: 2px solid var(--accent); outline-offset: 0; }
.unit { font-size: 14px; color: var(--text2); }
.margin-neg .calc-input, .margin-neg .unit { color: var(--ng) !important; }

.mult-row { display: flex; gap: 8px; flex-wrap: wrap; }
.mult-btn {
  border: 0.5px solid var(--border); background: var(--card); color: var(--accent);
  padding: 9px 14px; border-radius: 999px; font-size: 14px; font-weight: 700; cursor: pointer;
}
.mult-btn:active { background: var(--accent-weak); }

.conv-line { margin-top: 16px; font-size: 13px; color: var(--text2); background: var(--card-2); border-radius: 10px; padding: 10px 12px; }
.conv-line b { color: var(--text); font-variant-numeric: tabular-nums; }

.calc-empty { color: var(--text3); text-align: center; padding: 40px 20px; font-size: 14px; }