/* style.css — STR-LAB 2D骨組み解析ツール 青テーマ */

/* === CSS Custom Properties === */
:root {
  --blue-dark:   #1a4a7a;
  --blue-mid:    #2d6fa5;
  --blue-accent: #4a90d9;
  --blue-light:  #daeaf7;
  --blue-pale:   #f0f7fd;
  --text-primary:   #1a2332;
  --text-secondary: #4a5568;
  --text-muted:     #8a9aac;
  --border:         #c0d4e8;
  --white:          #ffffff;
  --bg-page:        #f2f5f8;
  --shadow-sm: 0 1px 3px rgba(0,0,0,0.07);
  --shadow-md: 0 4px 12px rgba(0,0,0,0.08);
  --radius:    8px;
}

/* === Reset & Base === */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

/* フォーム部品はシステムUIフォントに統一（Chrome標準ボタンと同じ見た目。
   Windows: Segoe UI + Yu Gothic UI / macOS: San Francisco + ヒラギノ） */
button, input, select, textarea {
  font-family: system-ui, -apple-system, "Segoe UI", "Yu Gothic UI", "Meiryo UI", sans-serif;
}

body {
  font-family: "Noto Sans JP", "Hiragino Kaku Gothic ProN", "Meiryo", "Yu Gothic", sans-serif;
  font-size: 14px;
  color: var(--text-primary);
  background: var(--bg-page);
  line-height: 1.6;
}

a { color: var(--blue-dark); text-decoration: none; }
a:hover { color: var(--blue-accent); text-decoration: underline; }

/* === Site Header === */
.site-header { background: var(--blue-dark); color: var(--white); }
.site-header__inner {
  max-width: 1200px;
  margin: 0 auto;
  padding: 14px 24px;
  display: flex;
  align-items: center;
  gap: 16px;
}
.site-header__brand { display: flex; align-items: center; gap: 14px; }
.site-header__lab {
  display: inline-block;
  background: var(--blue-accent);
  color: var(--white);
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.08em;
  padding: 3px 9px;
  border-radius: 4px;
  flex-shrink: 0;
}
.site-header__super { display: block; font-size: 11px; opacity: 0.72; }
.site-header__name  { display: block; font-size: 18px; font-weight: 700; }
.site-header__docs { margin-left: auto; display: flex; gap: 8px; }
.site-header__doc-link {
  display: inline-block;
  color: var(--white);
  background: rgba(255,255,255,0.13);
  border: 1px solid rgba(255,255,255,0.35);
  border-radius: 5px;
  padding: 4px 13px;
  font-size: 12px;
  white-space: nowrap;
}
.site-header__doc-link:hover {
  background: rgba(255,255,255,0.26);
  color: var(--white);
  text-decoration: none;
}
@media (max-width: 560px) {
  .site-header__inner { flex-wrap: wrap; }
  .site-header__docs { margin-left: 0; width: 100%; }
}

/* === Site Nav === */
.site-nav { background: var(--white); border-bottom: 1px solid var(--border); }
.site-nav__inner {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 24px;
  display: flex;
  align-items: center;
  gap: 0;
}
.site-nav__link {
  display: inline-block;
  padding: 10px 18px;
  font-size: 13px;
  color: var(--text-secondary);
  border-bottom: 3px solid transparent;
  white-space: nowrap;
}
.site-nav__link:hover { color: var(--blue-mid); text-decoration: none; }
.site-nav__link.active { color: var(--blue-mid); border-bottom-color: var(--blue-mid); font-weight: 700; }

/* === Main Layout === */
.main-wrap {
  max-width: 1200px;
  margin: 20px auto;
  padding: 0 16px;
  display: grid;
  grid-template-columns: 340px 1fr;
  grid-template-rows: auto 1fr auto;
  gap: 16px;
}

/* === Cards === */
.card {
  background: var(--white);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  box-shadow: var(--shadow-sm);
  overflow: hidden;
}
.card__header {
  padding: 10px 16px;
  background: var(--blue-pale);
  border-bottom: 1px solid var(--border);
  font-weight: 700;
  font-size: 13px;
  color: var(--blue-dark);
  display: flex;
  align-items: center;
  justify-content: space-between;
}
.result-font-ctrl {
  display: flex;
  align-items: center;
  gap: 4px;
  font-size: 11px;
  font-weight: normal;
  color: var(--text-secondary);
  white-space: nowrap;
}
.btn--xs {
  font-family: inherit;
  font-size: 11px;
  font-weight: 700;
  padding: 2px 7px;
  border: 1px solid var(--border);
  border-radius: 4px;
  background: var(--white);
  color: var(--text-secondary);
  cursor: pointer;
}
.btn--xs.active, .btn--xs:hover {
  background: var(--blue-dark);
  color: var(--white);
}
.card__body { padding: 12px 16px; }
.card__body--scroll { overflow-y: auto; max-height: 520px; }

/* === 入力パネル (左列) === */
.input-panel { grid-column: 1; grid-row: 1 / 4; }

.input-tabs {
  display: flex;
  flex-wrap: wrap;
  gap: 4px;
  padding: 8px 12px;
  border-bottom: 1px solid var(--border);
  background: var(--blue-pale);
}
.input-tab {
  padding: 4px 12px;
  font-size: 12px;
  border: 1px solid var(--border);
  border-radius: 4px;
  background: var(--white);
  color: var(--text-secondary);
  cursor: pointer;
}
.input-tab.active {
  background: var(--blue-mid);
  color: var(--white);
  border-color: var(--blue-mid);
}
.input-tabs__break { flex-basis: 100%; height: 0; }

.input-section { display: none; }
.input-section.active { display: block; }

.input-section__header {
  font-size: 11px;
  font-weight: 700;
  color: var(--blue-dark);
  padding: 8px 12px 4px;
  background: #f8fafd;
  border-bottom: 1px solid var(--border);
}

/* === 入力テーブル === */
.input-tbl {
  width: 100%;
  border-collapse: collapse;
  font-size: 12px;
  table-layout: auto;
}
.input-tbl th {
  background: var(--blue-pale);
  color: var(--text-muted);
  font-weight: 700;
  font-size: 11px;
  padding: 5px 6px;
  border: 1px solid var(--border);
  white-space: nowrap;
}
.input-tbl td {
  padding: 3px 4px;
  border: 1px solid #e4ecf4;
  vertical-align: middle;
}
.input-tbl input[type="text"],
.input-tbl input[type="number"] {
  width: 100%;
  min-width: 40px;
  padding: 2px 4px;
  border: 1px solid var(--border);
  border-radius: 3px;
  font-size: 12px;
  font-family: monospace;
}
.input-tbl select {
  width: 100%;
  padding: 2px 2px;
  border: 1px solid var(--border);
  border-radius: 3px;
  font-size: 12px;
}
/* 節点・部材ドロップダウン列を広げて矢印と値が重ならないように */
#tbl-distLoads  th:nth-child(1), #tbl-distLoads  td:nth-child(1),
#tbl-distLoads  th:nth-child(2), #tbl-distLoads  td:nth-child(2),
#tbl-distLoads  th:nth-child(3), #tbl-distLoads  td:nth-child(3),
#tbl-nodeLoads  th:nth-child(1), #tbl-nodeLoads  td:nth-child(1),
#tbl-nodeDisps  th:nth-child(1), #tbl-nodeDisps  td:nth-child(1) {
  min-width: 54px;
}
.input-tbl input[type="checkbox"] { cursor: pointer; }

.btn-add-row {
  display: inline-block;
  margin: 6px 12px;
  padding: 4px 12px;
  font-size: 12px;
  background: var(--blue-mid);
  color: var(--white);
  border: none;
  border-radius: 4px;
  cursor: pointer;
}
.btn-add-row:hover { background: var(--blue-dark); }

.btn-del-row {
  padding: 1px 5px;
  font-size: 11px;
  background: #fee;
  color: #c0392b;
  border: 1px solid #f0b0b0;
  border-radius: 3px;
  cursor: pointer;
}
.btn-del-row:hover { background: #fcc; }

/* === ツールバー === */
.toolbar {
  background: var(--white);
  border-bottom: 1px solid var(--border);
}
.toolbar__inner {
  max-width: 1200px;
  margin: 0 auto;
  padding: 10px 16px;
  display: flex;
  align-items: center;
  gap: 8px;
  flex-wrap: wrap;
}
.btn {
  padding: 6px 16px;
  font-size: 13px;
  border: 1px solid var(--border);
  border-radius: 5px;
  background: var(--white);
  color: var(--text-primary);
  cursor: pointer;
  white-space: nowrap;
}
.btn:hover { background: var(--blue-pale); }
.btn--primary {
  background: var(--blue-mid);
  color: var(--white);
  border-color: var(--blue-mid);
  font-weight: 700;
}
.btn--primary:hover { background: var(--blue-dark); }
.btn.active {
  background: var(--blue-accent);
  color: var(--white);
  border-color: var(--blue-accent);
}
.toolbar__sep {
  width: 1px;
  height: 24px;
  background: var(--border);
}
.toolbar__spacer { flex: 1; }
.toolbar__status {
  font-size: 12px;
  margin-left: 4px;
  white-space: nowrap;
}
.toolbar__status--ok  { color: #27ae60; font-weight: 700; }
.toolbar__status--err { color: #e74c3c; font-weight: 700; }
.btn--primary.flash-ok  { background: #27ae60; border-color: #27ae60; }
.btn--primary.flash-err { background: #e74c3c; border-color: #e74c3c; }
select.btn { font-family: inherit; padding-right: 4px; }

/* === 描画パネル (右列上) === */
.view-panel-wrap { grid-column: 2; grid-row: 1; }

.view-tabs {
  display: flex;
  gap: 4px;
  padding: 8px 12px;
  border-bottom: 1px solid var(--border);
}
.view-tab {
  padding: 6px 14px;
  font-size: 13px;
  border: 1px solid var(--border);
  border-radius: 4px;
  background: var(--white);
  color: var(--text-secondary);
  cursor: pointer;
}
.view-tab.active {
  background: var(--blue-mid);
  color: var(--white);
  border-color: var(--blue-mid);
}
.view-tab:disabled {
  opacity: 0.35;
  cursor: not-allowed;
}

.view-panel { display: none; }
.view-panel.active { display: block; }

.canvas-wrap {
  width: 100%;
  height: 420px;
  position: relative;
  overflow: hidden;
  background: #fafcff;
}
.canvas-wrap canvas {
  display: block;
  width: 100%;
  height: 100%;
}

/* 断面力切替 */
.diag-ctrl {
  display: flex;
  gap: 6px;
  padding: 6px 12px;
  border-top: 1px solid var(--border);
  background: var(--blue-pale);
}

/* === 結果パネル (右列下) === */
.result-panel { grid-column: 2; grid-row: 2; }

.result-tbl {
  width: 100%;
  border-collapse: collapse;
  font-size: inherit;
  font-family: monospace;
  margin-bottom: 12px;
}
.result-tbl th {
  background: var(--blue-pale);
  color: var(--text-secondary);
  font-size: 0.9em;
  padding: 4px 8px;
  border: 1px solid var(--border);
}
.result-tbl td {
  padding: 3px 8px;
  border: 1px solid #e4ecf4;
  text-align: right;
}
.result-tbl td:first-child { text-align: center; font-weight: 700; }
.result-tbl td.col-end { text-align: center; }

#result-body h3 {
  font-size: 1em;
  color: var(--blue-dark);
  margin: 10px 0 4px;
}
#result-body p.err {
  color: #c0392b;
  font-size: 0.95em;
  padding: 4px 8px;
  background: #fee;
  border-radius: 4px;
  margin: 4px 0;
}

/* === 部材荷重 全型一覧パネル === */
.dl-help-all {
  display: flex;
  flex-direction: column;
  gap: 6px;
  margin: 8px 12px 12px;
}
.dl-help-title {
  font-size: 12px;
  font-weight: 700;
  color: var(--text-secondary);
  padding: 2px 0 4px;
}
.dl-type-card {
  padding: 7px 10px;
  background: var(--blue-pale);
  border: 1px solid var(--border);
  border-radius: 5px;
}
.dl-type-card__label {
  font-size: 12px;
  font-weight: 700;
  color: var(--blue-dark);
  margin-bottom: 5px;
}
.dl-type-card__body {
  display: flex;
  align-items: flex-start;
  gap: 10px;
}
.dl-type-card__body img {
  max-width: 120px;
  max-height: 80px;
  border: 1px solid var(--border);
  border-radius: 3px;
  background: #fff;
  flex-shrink: 0;
}
.dl-type-card__params {
  border-collapse: collapse;
  font-size: 11px;
}
.dl-type-card__params td { padding: 1px 4px; }
.dl-type-card__params .ph-name {
  font-family: monospace;
  font-weight: 700;
  color: var(--blue-mid);
  white-space: nowrap;
}
.dl-type-card__params .ph-desc { color: var(--text-secondary); }
.dl-type-card__body img { cursor: zoom-in; }

/* === ライトボックス === */
.dl-lightbox {
  display: none;
  position: fixed;
  inset: 0;
  background: rgba(0,0,0,0.72);
  z-index: 9999;
  align-items: center;
  justify-content: center;
  cursor: zoom-out;
}
.dl-lightbox.open { display: flex; }
.dl-lightbox img {
  max-width: 90vw;
  max-height: 90vh;
  border-radius: 4px;
  box-shadow: 0 8px 32px rgba(0,0,0,0.5);
}

/* === フッター === */
.site-footer {
  text-align: center;
  color: var(--text-muted);
  font-size: 11px;
  padding: 20px 16px;
  margin-top: 24px;
  border-top: 1px solid var(--border);
  grid-column: 1 / 3;
}

/* === レスポンシブ === */
@media (max-width: 800px) {
  .main-wrap {
    grid-template-columns: 1fr;
    grid-template-rows: auto;
  }
  .input-panel  { grid-column: 1; grid-row: 2; }
  .view-panel-wrap { grid-column: 1; grid-row: 1; }
  .result-panel { grid-column: 1; grid-row: 3; }
  .site-footer  { grid-column: 1; }
  .canvas-wrap  { height: 300px; }
}