/* API 設計。style.css と flow.css の上に重ねる（紫は AI の印） */
.vh { position: absolute; width: 1px; height: 1px; overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; }
.h3b { margin-top: 14px; }
#what .fhead a, #rest .fhead a, #security .fhead a, .top .lead a { color: #1d4ed8; }

/* API とは */
.whogrid { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 10px; }
.who { background: var(--paper); border: 1px solid var(--line); border-radius: 14px; padding: 12px 14px; }
.who b { display: block; font-size: 14.5px; margin-bottom: 3px; }
.who span { font-size: 12.5px; color: var(--ink2); }

/* REST */
.restlayout { display: grid; grid-template-columns: minmax(0, 1.1fr) minmax(0, 1fr); gap: 12px; align-items: start; }
.restlayout .card { padding: 13px 15px; }
.restlayout h3 { margin: 0 0 8px; font-size: 14.5px; }
.rtbl { width: 100%; border-collapse: collapse; font-size: 13px; }
.rtbl td { padding: 6px 6px; border-bottom: 1px solid var(--line2); vertical-align: top; }
.rtbl code { font-family: var(--latin); font-size: 12.5px; }
.rtbl .st { font-size: 12px; color: var(--muted); }
.meth { font-family: var(--latin); font-size: 11.5px; font-weight: 600; border-radius: 6px; padding: 2px 7px; color: #fff; background: #334155; white-space: nowrap; }
.meth.GET { background: #2563eb; }
.meth.POST { background: #16a34a; }
.meth.PUT, .meth.PATCH { background: #d97706; }
.meth.DELETE { background: #dc2626; }
.apairs { display: grid; gap: 8px; }
.apair { background: var(--paper); border: 1px solid var(--line); border-radius: 12px; padding: 10px 12px; display: grid; gap: 4px; }
.apair code { font-family: var(--latin); font-size: 12.5px; border-radius: 6px; padding: 2px 8px; justify-self: start; }
.apair .bad { background: #fef2f2; color: #991b1b; text-decoration: line-through; text-decoration-color: rgba(153, 27, 27, .45); }
.apair .good { background: #f0fdf4; color: #166534; }
.apair .bad::before { content: "✕ "; text-decoration: none; }
.apair .good::before { content: "○ "; }
.apair span { font-size: 12px; color: var(--ink2); }

/* 練習台 */
.pgpresets { display: flex; flex-wrap: wrap; gap: 6px; margin-bottom: 10px; }
.pgpresets button { appearance: none; font: inherit; font-size: 12.5px; font-weight: 700; border: 1px solid var(--line); background: var(--paper); color: var(--ink2); border-radius: 999px; padding: 5px 12px; cursor: pointer; display: inline-flex; align-items: center; gap: 6px; }
.pgpresets button:hover { border-color: #94a3b8; color: var(--ink); }
.pgpresets button[aria-pressed="true"] { border-color: var(--ink); color: var(--ink); box-shadow: inset 0 0 0 1px var(--ink); }
.pgpresets .meth { font-size: 10.5px; padding: 1px 6px; }
.playground { display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 1.1fr); gap: 12px; align-items: start; }
.pgleft, .pgright { padding: 14px 16px; display: grid; gap: 8px; min-width: 0; }
.pgline { display: grid; grid-template-columns: auto minmax(0, 1fr); gap: 6px; }
.pgleft select, .pgleft input, .pgleft textarea { font: inherit; font-size: 13.5px; border: 1px solid var(--line); border-radius: 8px; padding: 7px 9px; background: #fff; color: var(--ink); min-width: 0; }
.pgleft input, .pgleft textarea, #pgMethod { font-family: var(--latin); }
.pgleft textarea { resize: vertical; line-height: 1.5; }
.pglab { font-size: 12px; font-weight: 700; color: var(--muted); }
.pgbtns { display: flex; gap: 8px; flex-wrap: wrap; }
.pgbtns button { appearance: none; font: inherit; font-size: 13px; font-weight: 700; border-radius: 999px; padding: 7px 16px; cursor: pointer; border: 1px solid var(--line); background: var(--paper); color: var(--ink); }
.pgbtns .primary { background: var(--ink); border-color: var(--ink); color: #fff; }
.pgreq b, .pgdb b { display: block; font-size: 12px; color: var(--muted); margin-bottom: 4px; }
.pgreq pre, .pgres { margin: 0; font-family: var(--latin); font-size: 12px; line-height: 1.6; background: #0f172a; color: #e2e8f0; border-radius: 10px; padding: 10px 12px; white-space: pre-wrap; overflow-wrap: anywhere; }
.pgres { min-height: 150px; max-height: 340px; overflow: auto; }
.pgstatus { display: grid; grid-template-columns: auto minmax(0, 1fr); gap: 4px 12px; align-items: center; min-height: 56px; }
.pgstatus .code { font-family: var(--latin); font-size: 30px; font-weight: 600; line-height: 1; color: var(--c, var(--ink)); grid-row: span 2; }
.pgstatus .nm { font-family: var(--latin); font-size: 14px; font-weight: 600; color: var(--c, var(--ink)); }
.pgstatus .ex { font-size: 12.5px; color: var(--ink2); }
.pgstatus .wait { grid-column: 1 / -1; font-size: 13px; color: var(--muted); }
.s2 { --c: #16a34a; } .s4 { --c: #d97706; } .s5 { --c: #dc2626; }
.pgdbwrap { overflow-x: auto; }
.pgdb table { width: 100%; border-collapse: collapse; font-size: 12.5px; }
.pgdb th, .pgdb td { padding: 5px 6px; border-bottom: 1px solid var(--line2); text-align: left; white-space: nowrap; }
.pgdb th { font-size: 11px; color: var(--muted); }
.pgdb td.n { font-family: var(--latin); text-align: right; }
.pgdb tr.chg td { background: #fef9c3; }
.pgpresets button:focus-visible, .pgbtns button:focus-visible, .pgleft select:focus-visible, .pgleft input:focus-visible, .pgleft textarea:focus-visible, .mlist input:focus-visible, .ckreset:focus-visible { outline: 3px solid #2563eb; outline-offset: 2px; }

/* 決まりごと・種類・説明書・変え方・守り・AI */
.rulegrid { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 10px; }
.rule, .kcard, .ow, .aic, .ev { background: var(--paper); border: 1px solid var(--line); border-radius: 14px; padding: 13px 15px; display: flex; flex-direction: column; gap: 7px; min-width: 0; }
.rule h3, .kcard h3, .aic h3, .ev h3 { margin: 0; font-size: 15px; }
.rule p, .kcard p, .aic p, .ow p { margin: 0; font-size: 12.5px; color: var(--ink2); }
.code { margin: 0; font-family: var(--latin); font-size: 12px; line-height: 1.6; background: #0f172a; color: #e2e8f0; border-radius: 10px; padding: 9px 11px; white-space: pre-wrap; overflow-wrap: anywhere; }
.srcl { margin-top: auto; font-size: 11.5px; color: var(--muted); }
.srcl a, .ow a, .aic a { color: #1d4ed8; }
.kindgrid { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 10px; }
.kcard h3 { font-family: var(--latin); }
.kcard .kfit { font-size: 12px; background: #f0fdf4; color: #14532d; border-radius: 8px; padding: 6px 9px; }
.kcard .kfit b { display: block; font-size: 11px; }
.oalayout { display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 1fr); gap: 12px; align-items: start; }
.oatext { padding: 13px 15px; font-size: 13px; color: var(--ink2); }
.oatext p { margin: 0 0 8px; }
.evgrid { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 10px; }
.ev ul { margin: 0; padding-left: 1.1em; font-size: 12.5px; color: var(--ink2); }
.ev.ok h3 { color: #166534; }
.ev.ng h3 { color: #991b1b; }
.ev p { margin: 0; font-size: 12.5px; color: var(--ink2); }
.owgrid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 8px; }
.ow { display: grid; grid-template-columns: 54px minmax(0, 1fr); gap: 2px 10px; align-items: baseline; align-content: start; padding: 10px 14px; }
.ow .n { font-family: var(--latin); font-weight: 600; font-size: 15px; color: #b91c1c; grid-row: span 3; }
.ow.is-top { border-color: #fca5a5; background: #fff7f7; }
.ow b { font-size: 14px; }
.ow small { font-family: var(--latin); font-size: 11px; color: var(--muted); }
.ow a { font-size: 12px; }
.aigrid { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 10px; }
.aic h3 { display: flex; align-items: center; gap: 8px; }
.aitag { font-style: normal; font-family: var(--latin); font-size: 10.5px; font-weight: 600; background: #ede9fe; color: #5b21b6; border-radius: 5px; padding: 1px 5px; }
.aic .tip { margin-top: auto; font-size: 11.5px; color: #5b21b6; font-weight: 700; }

/* チェックリスト */
.mlist { list-style: none; margin: 0; padding: 0; display: grid; gap: 4px; }
.mlist label { display: flex; gap: 10px; align-items: flex-start; padding: 7px 4px; border-radius: 8px; cursor: pointer; font-size: 13.5px; }
.mlist label:hover { background: var(--line2); }
.mlist input { margin-top: 3px; width: 16px; height: 16px; accent-color: var(--k-test); flex: none; }
.mlist input:checked + span { color: var(--muted); text-decoration: line-through; }
.ckfoot { display: flex; justify-content: space-between; align-items: center; gap: 10px; flex-wrap: wrap; margin-top: 8px; }
.mcount { font-size: 12.5px; font-weight: 700; color: var(--k-test); }
.ckreset { appearance: none; border: 1px solid var(--line); background: var(--paper); border-radius: 999px; padding: 5px 12px; font: inherit; font-size: 12.5px; font-weight: 700; color: var(--ink2); cursor: pointer; }
#mistakes .src { margin-top: 14px; }

@media (max-width: 1100px) {
  .whogrid, .kindgrid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .rulegrid, .aigrid, .evgrid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .playground, .restlayout, .oalayout { grid-template-columns: 1fr; }
}
@media (max-width: 760px) {
  .whogrid, .kindgrid, .rulegrid, .aigrid, .evgrid, .owgrid { grid-template-columns: 1fr; }
  .pgstatus .code { font-size: 26px; }
}

.kex { margin: 0; font-family: var(--latin); font-size: 11px; line-height: 1.55; background: #0f172a; color: #e2e8f0; border-radius: 8px; padding: 8px 10px; overflow-x: auto; white-space: pre; }