/* ระบบ DMC — สไตล์แบบ lucide.dev: พื้นเรียบ การ์ดขอบบาง มุมโค้ง ปุ่มแคปซูล สีหลักแดงอมส้ม รองรับโหมดมืด */
:root {
  --bg: #ffffff; --bg-soft: #f6f6f7; --bg-alt: #f6f6f7; --bg-mute: #ebebef;
  --card: #f6f6f7; --line: #e2e2e3; --border: #c2c2c4;
  --text: #3c3c43; --text-strong: #1b1b1f; --muted: #67676c; --faint: #929295;
  --primary: #f56565; --primary-d: #e04848; --primary-t: #d53f3f; --primary-soft: rgba(245, 101, 101, .12);
  --default-soft: rgba(142, 150, 170, .14); --default-hover: rgba(142, 150, 170, .24);
  --ok: #e8f7ef; --ok-t: #157a42; --err: #fdecec; --err-t: #c42b2b; --warn: #fff6e0; --warn-t: #9a5b00;
  --info: #eef2ff; --info-t: #3b4bb5; --purple: #f3e8ff; --purple-t: #7a2fb5;
  --hl: #fff6d6; --head: #c8c8c8; --chip: #ffffff;
  --radius: 12px; --shadow: 0 1px 2px rgba(0, 0, 0, .04);
  color-scheme: light;
}
@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) {
    --bg: #1b1b1f; --bg-soft: #202127; --bg-alt: #161618; --bg-mute: #2e2e32;
    --card: #202127; --line: #2e2e32; --border: #3c3f44;
    --text: #dfdfd6; --text-strong: #fffff5; --muted: #98989f; --faint: #6a6a71;
    --primary: #f56565; --primary-d: #ff7a7a; --primary-t: #f67373; --primary-soft: rgba(246, 115, 115, .16);
    --default-soft: rgba(101, 117, 133, .16); --default-hover: rgba(101, 117, 133, .28);
    --ok: rgba(34, 197, 94, .14); --ok-t: #6ee7a0; --err: rgba(244, 63, 94, .14); --err-t: #ff8a8a; --warn: rgba(234, 179, 8, .14); --warn-t: #f5c451;
    --info: rgba(99, 102, 241, .16); --info-t: #a5b4fc; --purple: rgba(168, 85, 247, .16); --purple-t: #d8b4fe;
    --hl: rgba(234, 179, 8, .12); --chip: #1b1b1f;
    --shadow: none;
    color-scheme: dark;
  }
}
:root[data-theme="dark"] {
  --bg: #1b1b1f; --bg-soft: #202127; --bg-alt: #161618; --bg-mute: #2e2e32;
  --card: #202127; --line: #2e2e32; --border: #3c3f44;
  --text: #dfdfd6; --text-strong: #fffff5; --muted: #98989f; --faint: #6a6a71;
  --primary: #f56565; --primary-d: #ff7a7a; --primary-t: #f67373; --primary-soft: rgba(246, 115, 115, .16);
  --default-soft: rgba(101, 117, 133, .16); --default-hover: rgba(101, 117, 133, .28);
  --ok: rgba(34, 197, 94, .14); --ok-t: #6ee7a0; --err: rgba(244, 63, 94, .14); --err-t: #ff8a8a; --warn: rgba(234, 179, 8, .14); --warn-t: #f5c451;
  --info: rgba(99, 102, 241, .16); --info-t: #a5b4fc; --purple: rgba(168, 85, 247, .16); --purple-t: #d8b4fe;
  --hl: rgba(234, 179, 8, .12); --chip: #1b1b1f;
  --shadow: none;
  color-scheme: dark;
}

* { box-sizing: border-box; }
html { font-size: 16px; -webkit-text-size-adjust: 100%; text-size-adjust: 100%; }
html.fs1 { font-size: 18.5px; }
html.fs2 { font-size: 21px; }
body { margin: 0; font-family: 'Inter', 'IBM Plex Sans Thai', 'Sarabun', system-ui, sans-serif; font-size: 1rem; line-height: 1.6;
       background: var(--bg); color: var(--text); -webkit-font-smoothing: antialiased; }
a { color: var(--primary-t); text-decoration: none; }
a:hover { color: var(--primary-d); }
h1 { font-size: 1.6rem; margin: 0; color: var(--text-strong); font-weight: 700; letter-spacing: -.01em; }
h2 { font-size: 1.08rem; margin: 0 0 .7rem; color: var(--text-strong); font-weight: 600; }
.muted { color: var(--muted); } .small { font-size: .85rem; }
code { background: var(--default-soft); border-radius: 4px; padding: .05rem .35rem; font-size: .88em; }

/* ไอคอน Lucide */
.ico, svg.lucide { width: 1.1em; height: 1.1em; stroke-width: 2; vertical-align: -.18em; flex: none; }
i[data-lucide] { display: inline-block; width: 1.1em; height: 1.1em; vertical-align: -.18em; }
.ico-chip { display: inline-grid; place-items: center; width: 2.6rem; height: 2.6rem; border-radius: 8px; background: var(--chip);
            color: var(--primary); margin-bottom: .8rem; border: 1px solid var(--line); }
.ico-chip .ico, .ico-chip i[data-lucide] { width: 1.35rem; height: 1.35rem; }

/* แถบเมนูบน */
.topbar { position: sticky; top: 0; z-index: 20; background: color-mix(in srgb, var(--bg) 88%, transparent);
          backdrop-filter: saturate(1.4) blur(10px); -webkit-backdrop-filter: saturate(1.4) blur(10px);
          border-bottom: 1px solid var(--line); display: flex; flex-wrap: wrap; align-items: center; justify-content: space-between;
          padding: .55rem 1.25rem; gap: .5rem 1rem; }
.brand a { display: inline-flex; align-items: center; gap: .5rem; font-weight: 700; font-size: 1.05rem; color: var(--text-strong); }
.brand .logo { display: inline-grid; place-items: center; width: 1.9rem; height: 1.9rem; border-radius: 8px; background: var(--primary); color: #fff; }
.brand .logo .ico, .brand .logo i[data-lucide] { width: 1.1rem; height: 1.1rem; }
.brand small { display: block; color: var(--muted); font-size: .78rem; margin-left: 2.4rem; margin-top: -.2rem; }
.topbar nav { display: flex; flex-wrap: wrap; gap: .15rem; align-items: center; }
.topbar nav a { display: inline-flex; align-items: center; gap: .35rem; color: var(--text); font-size: .9rem; font-weight: 500;
                padding: .3rem .6rem; border-radius: 8px; }
.topbar nav a:hover { color: var(--primary-t); background: var(--default-soft); }
.topbar nav a.on { color: var(--primary-t); }
.topbar nav .ico, .topbar nav i[data-lucide] { width: 1rem; height: 1rem; opacity: .85; }
.topbar .user { color: var(--muted); font-size: .85rem; padding: 0 .4rem; }

/* แถบปรับการแสดงผล: ขนาดอักษร + มุมมอง + ธีม */
.viewbar { display: flex; flex-wrap: wrap; justify-content: flex-end; align-items: center; gap: .3rem; max-width: 1200px;
           margin: .6rem auto 0; padding: 0 1.25rem; font-size: .82rem; color: var(--muted); }
.viewbar button { font: inherit; border: 1px solid var(--line); background: var(--bg); color: var(--text); border-radius: 999px;
                  padding: .12rem .65rem; cursor: pointer; line-height: 1.5; display: inline-flex; align-items: center; gap: .3rem; }
.viewbar button:hover { border-color: var(--border); }
.viewbar button[data-fs="1"] { font-size: 1.08em; } .viewbar button[data-fs="2"] { font-size: 1.2em; }
.viewbar button[aria-pressed="true"] { background: var(--primary); border-color: var(--primary); color: #fff; }
.viewbar .vb-sep { width: 1px; height: 1.1rem; background: var(--line); margin: 0 .3rem; }
.viewbar.no-view .vb-mobile { display: none; }

.wrap { max-width: 1200px; margin: 0 auto; padding: 1rem 1.25rem 2rem; }
.page-title { display: flex; flex-wrap: wrap; align-items: center; gap: .8rem 1rem; margin: .4rem 0 1.2rem; }
.page-title h1 { margin-right: auto; }

/* การ์ด */
.card { background: var(--card); border: 1px solid var(--line); border-radius: var(--radius); padding: 1.25rem 1.4rem; margin-bottom: 1rem; box-shadow: var(--shadow); }
.card > h2:first-child { display: flex; flex-wrap: wrap; align-items: center; gap: .4rem; }

/* ปุ่ม: แคปซูล */
.btn { display: inline-flex; align-items: center; justify-content: center; gap: .35rem; border: 1px solid transparent;
       background: var(--default-soft); color: var(--text); padding: .42rem 1rem; border-radius: 999px; font: inherit;
       font-size: .9rem; font-weight: 600; cursor: pointer; line-height: 1.35; transition: background .15s, color .15s, border-color .15s; }
.btn:hover { background: var(--default-hover); color: var(--text-strong); }
.btn.primary { background: var(--primary); border-color: var(--primary); color: #fff; }
.btn.primary:hover { background: var(--primary-d); border-color: var(--primary-d); color: #fff; }
.btn.danger { background: transparent; color: var(--err-t); border-color: color-mix(in srgb, var(--err-t) 45%, transparent); }
.btn.danger:hover { background: var(--err); }
.btn.small { padding: .2rem .7rem; font-size: .82rem; }
.btn.block { width: 100%; margin-top: .5rem; }
.btn .ico, .btn i[data-lucide] { width: 1rem; height: 1rem; }

input, select, textarea { font: inherit; padding: .42rem .65rem; border: 1px solid var(--line); border-radius: 8px; background: var(--bg-alt);
                          color: var(--text); width: 100%; transition: border-color .15s, box-shadow .15s; }
input:hover, select:hover, textarea:hover { border-color: var(--border); }
input:focus, select:focus, textarea:focus { outline: none; border-color: var(--primary); box-shadow: 0 0 0 3px var(--primary-soft); }
input[type=checkbox], input[type=radio] { accent-color: var(--primary); }
label { display: block; margin-bottom: .7rem; font-size: .9rem; color: var(--muted); }
label > input, label > select, label > textarea { margin-top: .2rem; color: var(--text); }
form.inline { display: inline-flex; flex-wrap: wrap; gap: .4rem; align-items: center; }
form.inline label { margin: 0; display: flex; gap: .4rem; align-items: center; white-space: nowrap; }
form.inline input, form.inline select { width: auto; margin-top: 0; }

.alert { padding: .75rem 1rem; border-radius: 10px; margin-bottom: 1rem; border: 1px solid transparent; }
.alert.ok { background: var(--ok); color: var(--ok-t); border-color: color-mix(in srgb, var(--ok-t) 20%, transparent); }
.alert.err { background: var(--err); color: var(--err-t); border-color: color-mix(in srgb, var(--err-t) 20%, transparent); }
.alert.info { background: var(--info); color: var(--info-t); border-color: color-mix(in srgb, var(--info-t) 20%, transparent); }

.login-box { max-width: 380px; margin: 10vh auto; }

/* การ์ดรอบ DMC */
.rounds { display: grid; grid-template-columns: repeat(auto-fit, minmax(290px, 1fr)); gap: 1rem; }
.round { position: relative; }
.round.has { border-top: 1px solid var(--line); }
.round.has::before { content: ''; position: absolute; left: 1.4rem; right: 1.4rem; top: -1px; height: 3px; border-radius: 0 0 3px 3px; background: var(--primary); }
.round.empty { border-style: dashed; background: transparent; }
.round p { margin: .2rem 0 .6rem; }
.stats { display: grid; grid-template-columns: repeat(3, 1fr); gap: .5rem; margin: .7rem 0; }
.stats div { background: var(--bg); border: 1px solid var(--line); border-radius: 10px; padding: .55rem; text-align: center; }
.stats span { display: block; font-size: .8rem; color: var(--muted); }
.stats b { font-size: 1.4rem; color: var(--text-strong); font-variant-numeric: tabular-nums; }
.stats .total { background: var(--primary-soft); border-color: transparent; }
.stats .total b { color: var(--primary-t); }
.gradmini { width: 100%; border-collapse: collapse; margin: .2rem 0 .4rem; font-size: .9rem; }
.gradmini th, .gradmini td { border: 1px solid var(--line); padding: .15rem .45rem; }
.gradmini th { background: var(--bg-mute); font-weight: 600; }
.actions { display: flex; flex-wrap: wrap; gap: .4rem; }

/* ตาราง */
.table-wrap { overflow-x: auto; border-radius: 10px; }
table.grid { width: 100%; border-collapse: separate; border-spacing: 0; border: 1px solid var(--line); border-radius: 10px; overflow: hidden; background: var(--bg); }
.grid th, .grid td { border-bottom: 1px solid var(--line); border-right: 1px solid var(--line); padding: .45rem .65rem; }
.grid tr > :last-child { border-right: 0; }
.grid tbody tr:last-child > *, .grid tfoot tr:last-child > * { border-bottom: 0; }
.grid thead th { background: var(--bg-soft); color: var(--text-strong); font-weight: 600; font-size: .9rem; text-align: left; }
.grid tfoot th { background: var(--bg-soft); color: var(--text-strong); }
.grid tbody tr:hover td { background: color-mix(in srgb, var(--default-soft) 60%, transparent); }
.grid tr.sub td { background: var(--bg-soft); font-weight: 600; }
.num { text-align: right; font-variant-numeric: tabular-nums; }
.grid th.num { text-align: right; }
.center { text-align: center; }
.up { color: var(--ok-t); } .down { color: var(--err-t); }

/* หน้าบันทึกข้อมูล */
.form-row { display: flex; flex-wrap: wrap; gap: 1rem; align-items: flex-end; }
.form-row label { margin: 0; }
.form-row .grow { flex: 1; min-width: 200px; }
.grand { font-size: 1.05rem; margin-left: auto; }
.grand b { font-size: 1.5rem; color: var(--primary-t); }
.grades { display: grid; grid-template-columns: repeat(auto-fit, minmax(340px, 1fr)); gap: 1rem; }
.grade h2 { display: flex; justify-content: space-between; align-items: center; }
.badge { font-size: .8rem; font-weight: 500; background: var(--primary-soft); color: var(--primary-t); padding: .1rem .6rem; border-radius: 999px; }
.grid.edit td { padding: .25rem; }
.grid.edit td:first-child { white-space: nowrap; }
.grid.edit .pre { color: var(--muted); }
.grid.edit input { margin: 0; }
.grid.edit .room { width: 3rem; padding: .3rem; }
.grid.edit .cnt { text-align: right; }
.grid.edit .gd, .grid.edit .ng { text-align: right; }
.grid.edit .gd { background: var(--ok); } .grid.edit .ng { background: var(--err); }
.grid.edit tr.bad td { background: var(--err); }
.grid.edit tr.bad .cnt, .grid.edit tr.bad .gd, .grid.edit tr.bad .ng { border-color: var(--err-t); }
.gradsec { border-top: 3px solid var(--ok-t); }
.del { border: 0; background: none; color: var(--err-t); font-size: 1.2rem; cursor: pointer; }
.grade .add { margin-top: .5rem; }
.savebar { position: sticky; bottom: 0; z-index: 5; background: color-mix(in srgb, var(--bg) 90%, transparent); backdrop-filter: blur(8px);
           padding: .8rem 0; display: flex; flex-wrap: wrap; gap: .5rem; align-items: center; border-top: 1px solid var(--line); }
.danger-zone { margin-top: 1.5rem; text-align: right; }

/* ย้ายเข้า/ออก/AFS และด้อยโอกาส */
.tag { display: inline-flex; align-items: center; gap: .25rem; padding: .05rem .6rem; border-radius: 999px; font-size: .8rem; font-weight: 500;
       white-space: nowrap; background: var(--default-soft); color: var(--text); }
.t-in { background: var(--ok); color: var(--ok-t); }
.t-out { background: var(--err); color: var(--err-t); }
.t-afs_out { background: var(--warn); color: var(--warn-t); }
.t-afs_back { background: var(--info); color: var(--info-t); }
.t-afs_away { background: var(--purple); color: var(--purple-t); }
.afs-away { border-left: 3px solid var(--purple-t); }
.moves-line { display: flex; flex-wrap: wrap; gap: .3rem; margin-top: .9rem; padding-top: .7rem; border-top: 1px dashed var(--line); color: inherit; }
.form-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(160px, 1fr)); gap: 0 1rem; }
.form-grid .span2 { grid-column: span 2; }
.form-grid .span-all { grid-column: 1 / -1; display: flex; flex-wrap: wrap; gap: .5rem; align-items: center; }
.copybar { margin-top: 1rem; padding-top: 1rem; border-top: 1px dashed var(--line); display: flex; flex-wrap: wrap; gap: .5rem; align-items: center; }
.linkbtn { border: 0; background: none; color: var(--err-t); font: inherit; cursor: pointer; padding: 0 0 0 .5rem; }
.nowrap { white-space: nowrap; }
.grid tr.diffrow td { background: var(--hl); }
.req { color: var(--err-t); }
#nid { font-variant-numeric: tabular-nums; letter-spacing: .03em; }
#nid:invalid:not(:placeholder-shown) { border-color: var(--err-t); }
.rpt-h3 { font-size: 1.05rem; margin: 1.4rem 0 .5rem; }
#roundHint { font-size: .75rem; margin-left: .3rem; vertical-align: 1px; }
.note-chips { display: flex; flex-wrap: wrap; gap: .25rem; margin-top: .35rem; }
.note-chip { border: 1px dashed var(--border); background: var(--bg); color: var(--muted); border-radius: 999px; padding: .05rem .6rem; font: inherit; font-size: .78rem; cursor: pointer; }
.note-chip:hover { background: var(--primary-soft); color: var(--primary-t); border-style: solid; border-color: transparent; }
@media (max-width: 600px) { .form-grid .span2 { grid-column: 1 / -1; } }

/* เทียบไฟล์ / เครื่องมือ / ปฏิทิน */
.grid.diff td { vertical-align: top; }
.grid.diff input, .grid.diff select { min-width: 7rem; margin: 0; }
.grid.diff tr.skiprow td { opacity: .55; }
.tools { display: grid; grid-template-columns: repeat(auto-fit, minmax(260px, 1fr)); gap: 1rem; }
.tools a.card { display: block; color: var(--text); transition: border-color .15s, background .15s; }
.tools a.card:hover { border-color: var(--primary); }
.tools a.card h2 { color: var(--text-strong); margin-bottom: .3rem; }
.tools a.card p { margin: 0; font-size: .9rem; }
.checklist { list-style: none; padding: 0; margin: .4rem 0; }
.checklist li { padding: .25rem 0; display: flex; gap: .5rem; align-items: baseline; }
.checklist a { color: inherit; }
.checklist a:hover { color: var(--primary-t); }
.checklist .ic { width: 1.2rem; text-align: center; flex: none; }
.deadline { display: flex; flex-wrap: wrap; gap: .5rem 1.4rem; align-items: center; position: relative; overflow: hidden; }
.deadline::before { content: ''; position: absolute; left: 0; top: 0; bottom: 0; width: 4px; background: var(--primary); }
.deadline.warn { background: var(--warn); } .deadline.warn::before { background: var(--warn-t); }
.deadline.late { background: var(--err); } .deadline.late::before { background: var(--err-t); }
.deadline.done::before { background: var(--ok-t); }
.deadline .days { font-size: 1.6rem; font-weight: 700; color: var(--text-strong); font-variant-numeric: tabular-nums; }
.steps { counter-reset: st; }
.steps > section { position: relative; padding-left: 3.6rem; }
.steps > section::before { counter-increment: st; content: counter(st); position: absolute; left: 1.2rem; top: 1.2rem; width: 1.7rem; height: 1.7rem;
                           border-radius: 50%; background: var(--primary); color: #fff; display: grid; place-items: center; font-weight: 700; font-size: .9rem; }
details > summary { cursor: pointer; color: var(--muted); }
details > summary:hover { color: var(--primary-t); }

/* รายงานพิมพ์ (รูปแบบตามเอกสารโรงเรียน) — พื้นขาวเสมอ ใช้ฟอนต์ Sarabun */
.report-tools { display: flex; flex-wrap: wrap; gap: .5rem; margin-bottom: 1rem; }
.report { background: #fff; color: #000; font-family: 'Sarabun', sans-serif; max-width: 820px; margin: 0 auto; padding: 1.5rem 2rem;
          border: 1px solid var(--line); border-radius: var(--radius); }
.report h1, .report h2 { color: #000; }
.report h1 { text-align: center; font-size: 1.35rem; }
.report h2 { text-align: center; font-size: 1.25rem; margin: .2rem 0; }
.report .sub { text-align: center; margin: 0 0 1rem; color: #444; }
table.rpt { width: 100%; border-collapse: collapse; margin-bottom: 1.2rem; font-size: 1.02rem; color: #000; background: #fff; }
.rpt th, .rpt td { border: 1px solid #333; padding: .22rem .4rem; text-align: center; }
.rpt thead th { background: var(--head); font-weight: 600; }
.rpt col.c-room { width: 21%; } .rpt col.c-num { width: 12.3%; }
.rpt td.num { text-align: center; }
.rpt tr.total td { font-weight: 700; }
.rpt tr.level td { text-align: left; padding-left: .6rem; font-weight: 600; }
.rpt tr.level td.center { text-align: center; }
.report .updated { display: inline-block; background: #ffff00; padding: 0 .3rem; font-weight: 600; margin: 0; }
.report .muted { color: #555; }

@media (max-width: 600px) {
  .wrap { padding: 1rem 16px 2rem; }
  .topbar { padding: .5rem 16px; }
  .grades { grid-template-columns: 1fr; }
  .report { padding: 1rem .5rem; }
  .rpt { font-size: .82rem; }
  .card { padding: 1rem; }
}

@media print {
  @page { size: A4 portrait; margin: 12mm; }
  /* พิมพ์เป็นสีสว่างเสมอ แม้หน้าจอใช้โหมดมืด (ตัวเลือก :root ซ้ำเพื่อให้ชนะกฎโหมดมืด) */
  :root:root:root { --bg: #fff; --bg-soft: #f0f0f0; --bg-alt: #fff; --bg-mute: #e6e6e6; --card: #fff; --line: #999; --border: #777;
    --text: #000; --text-strong: #000; --muted: #444; --hl: #fff3c4; --chip: #fff; color-scheme: light; }
  body { background: #fff; color: #000; }
  .no-print, .topbar, .viewbar { display: none !important; }
  .wrap { max-width: none; padding: 0; }
  .report { box-shadow: none; padding: 0; max-width: none; border: 0; }
  .card { border: 0; padding: 0; background: #fff; }
  .rpt thead th { -webkit-print-color-adjust: exact; print-color-adjust: exact; }
  .report .updated { -webkit-print-color-adjust: exact; print-color-adjust: exact; }
}