/* Grade / GPA calculator (grade-calculator.php). Loaded after pdf-tools.css so the hero, option
   fields, segments and privacy note are shared; this file duplicates the tab strip and sticky
   result column from code-tools.css (kept separate so either tool can change on its own) and
   adds the semester tables, score grid, status pill and honours bar. */
.gc-hero:before{content:"GPA"}
.gc-app{padding-top:56px;background:linear-gradient(180deg,#f6f8fb 0%,#fff 260px)}
.gc-app [hidden]{display:none!important}
.gc-tabs{display:grid;grid-template-columns:repeat(3,1fr);gap:10px;margin-bottom:28px}
.gc-tabs .ct-tab{display:grid;grid-template-columns:auto 1fr;grid-template-rows:auto auto;column-gap:14px;align-items:center;text-align:left;background:#fff;border:1px solid var(--line);border-radius:14px;padding:14px 18px;cursor:pointer;color:var(--navy);transition:.2s var(--ease)}
.gc-tabs .ct-tab .icon{grid-row:1/3;width:30px;height:30px;color:var(--blue)}
.gc-tabs .ct-tab span{font-weight:700;font-size:1rem;letter-spacing:-.01em}
.gc-tabs .ct-tab small{font-size:.74rem;color:#687482}
.gc-tabs .ct-tab:hover{border-color:var(--blue);transform:translateY(-2px);box-shadow:0 1px 2px rgba(7,20,42,.07),0 12px 28px rgba(11,37,69,.08)}
.gc-tabs .ct-tab[aria-selected="true"]{background:linear-gradient(135deg,#0b2545,#1e4a7d);border-color:transparent;color:#fff;box-shadow:0 1px 2px rgba(7,20,42,.07),0 16px 34px rgba(11,37,69,.22)}
.gc-tabs .ct-tab[aria-selected="true"] .icon{color:var(--brand-pink-tint)}
.gc-tabs .ct-tab[aria-selected="true"] small{color:#c9d7e5}
.gc-body{display:grid;grid-template-columns:minmax(0,1fr) 380px;gap:28px;align-items:start}
.gc-panel{display:flex;flex-direction:column;gap:16px}
.gc-panel.pdft-options{gap:14px}
.gc-help{margin:-4px 0 0;font-size:.84rem;color:#4e5e72;line-height:1.6}
.ct-two{display:grid;grid-template-columns:1fr 1fr;gap:12px}
.gc-or{font-size:.78rem;color:#687482;white-space:nowrap}
.gc-targets label{padding:7px 2px}
.gc-inline-btn,.ct-mini-btn{background:#fff;border:1px solid var(--line)!important;color:var(--navy);border-radius:999px;padding:9px 16px;font-size:.84rem;gap:8px;align-self:flex-start}
.ct-mini-btn .icon,.gc-inline-btn .icon{width:16px;height:16px}
.gc-toolbar{display:flex;align-items:center;gap:8px;flex-wrap:wrap}
.gc-toolbar .ct-bt-count{margin-left:auto;font:700 .74rem Manrope,sans-serif;color:#687482;letter-spacing:.04em}
.gc-toolbar .ct-bt-count.is-error{color:#c0263a}
.gc-icon-btn{width:32px;height:32px}
.gc-icon-btn:hover{border-color:#d13b4d;color:#d13b4d}

/* ---- semesters ---- */
.gc-semesters{display:flex;flex-direction:column;gap:16px}
.gc-sem{gap:12px}
.gc-sem-head{display:grid;grid-template-columns:minmax(0,1fr) auto auto;gap:10px;align-items:center}
.gc-sem-name{border:0;border-bottom:1px dashed var(--line);background:none;font:700 1.05rem/1.3 "IBM Plex Sans Thai",sans-serif;color:var(--navy);padding:4px 0;min-width:0;letter-spacing:-.01em}
.gc-sem-name:focus{outline:none;border-bottom-color:var(--blue)}
.gc-sem-stats{font:700 .74rem Manrope,sans-serif;letter-spacing:.04em;color:var(--blue);background:#e9f1fb;border-radius:999px;padding:5px 11px;white-space:nowrap}
.gc-table{display:flex;flex-direction:column;gap:6px}
.gc-row{display:grid;grid-template-columns:minmax(0,1fr) 84px 130px 32px;gap:8px;align-items:center}
.gc-row-head{font-size:.72rem;font-weight:700;letter-spacing:.06em;text-transform:uppercase;color:#687482;padding:0 4px}
.gc-row input,.gc-row select,.gc-score-row input{border:1px solid var(--line);border-radius:8px;padding:9px 11px;font-size:.9rem;color:var(--ink);background:#fff;width:100%;min-width:0}
.gc-row input:focus,.gc-row select:focus,.gc-score-row input:focus{outline:none;border-color:var(--blue);box-shadow:0 0 0 3px rgba(47,111,176,.15)}
.gc-row input[type=number],.gc-score-row input[type=number]{text-align:center;font-variant-numeric:tabular-nums}
.gc-add-course{margin-top:2px}

/* ---- score grid ---- */
.gc-score-table{display:flex;flex-direction:column;gap:6px}
.gc-score-head,.gc-score-row{display:grid;grid-template-columns:minmax(0,1fr) 84px 84px 84px 32px;gap:8px;align-items:center}
.gc-score-head{font-size:.72rem;font-weight:700;letter-spacing:.06em;text-transform:uppercase;color:#687482;padding:0 4px}
.gc-cutoffs{display:grid;grid-template-columns:repeat(7,1fr);gap:8px}
.gc-cutoffs .pdft-field>span{text-align:center;font-family:Manrope,sans-serif;font-weight:800}
.gc-cutoffs input{text-align:center;padding:8px 4px!important}

/* ---- result column ---- */
.gc-side{position:sticky;top:96px}
.gc-card{background:#fff;border:1px solid var(--line);border-radius:14px;padding:20px;box-shadow:0 1px 2px rgba(7,20,42,.07),0 18px 44px rgba(11,37,69,.08)}
.gc-big{display:flex;flex-direction:column;align-items:center;text-align:center;gap:2px;padding:14px 0 6px;border-radius:14px;background:linear-gradient(180deg,#f6f8fb,#fff)}
.gc-big-label{font:700 .72rem Manrope,sans-serif;letter-spacing:.12em;text-transform:uppercase;color:#687482}
.gc-big strong{font:800 4.2rem/1 Manrope,sans-serif;letter-spacing:-.06em;color:var(--navy);font-variant-numeric:tabular-nums;transition:color .3s}
.gc-big strong[data-tone="gold"]{color:#b7791f}
.gc-big strong[data-tone="warn"]{color:#d98a1a}
.gc-big strong[data-tone="bad"]{color:#c0263a}
.gc-big-sub{font-size:.8rem;color:#687482;margin-top:6px}
.gc-status{display:flex;flex-direction:column;gap:2px;margin-top:12px;padding:10px 14px;border-radius:8px;border:1px solid;font-size:.86rem;line-height:1.45}
.gc-status small{font-size:.76rem;opacity:.85}
.gc-status[data-tone="ok"]{background:#e9f4ee;border-color:#bfe3cf;color:#14603a}
.gc-status[data-tone="gold"]{background:#fff6dc;border-color:#f1d98a;color:#7a5410}
.gc-status[data-tone="warn"]{background:#fff1e0;border-color:#f5cf9a;color:#8a4b06}
.gc-status[data-tone="bad"]{background:#fdf2f3;border-color:#f0b7bf;color:#a01e2f}
.gc-meta{display:grid;grid-template-columns:auto 1fr;gap:5px 14px;margin:12px 0 0;font-size:.78rem;color:#687482}
.gc-meta dt{font-weight:600;color:#4e5e72}
.gc-meta dd{margin:0;text-align:right;font-variant-numeric:tabular-nums;color:var(--navy);overflow-wrap:anywhere}
.gc-honours{margin-top:14px}
.gc-honours-bar{position:relative;height:10px;border-radius:999px;background:#eef2f6;overflow:visible}
.gc-honours-bar span{display:block;height:100%;border-radius:999px;background:linear-gradient(90deg,#d13b4d 0%,#d98a1a 40%,#178a7a 55%,#2f6fb0 85%,#b7791f 100%);transition:width .4s var(--ease);max-width:100%}
.gc-honours-bar i{position:absolute;top:-3px;width:2px;height:16px;background:var(--navy);opacity:.35;border-radius:2px}
.gc-honours-legend{display:flex;justify-content:space-between;font:700 .64rem Manrope,sans-serif;color:#8794a5;margin-top:6px;letter-spacing:.04em}
.gc-actions{display:grid;grid-template-columns:1fr 1fr;gap:8px;margin-top:16px}
.gc-actions .button{justify-content:center;border-radius:8px;padding:12px 10px;font-size:.84rem;gap:8px}
.gc-actions .button:first-child{grid-column:1/-1;padding:14px}
.gc-actions .button:not(.button-primary){background:#fff;border:1px solid var(--line);color:var(--navy)}
.gc-actions .button:not(.button-primary):hover{border-color:var(--blue);color:var(--blue)}
.gc-actions .button:disabled{opacity:.45;cursor:not-allowed}
.gc-actions .button .icon{width:16px;height:16px;flex:none}
.gc-subhead{font-size:.78rem;font-family:Manrope,sans-serif;letter-spacing:.1em;text-transform:uppercase;color:#687482;margin:18px 0 8px}
.gc-scenarios{width:100%;border-collapse:collapse;font-size:.86rem;font-variant-numeric:tabular-nums}
.gc-scenarios th{text-align:left;font-size:.7rem;letter-spacing:.06em;text-transform:uppercase;color:#8794a5;padding:4px 6px;border-bottom:1px solid var(--line)}
.gc-scenarios td{padding:6px;border-bottom:1px solid #eef2f6;color:var(--ink)}
.gc-scenarios td:last-child{width:24px;text-align:right}
.gc-scenarios .icon{width:16px;height:16px;color:#14603a}
.gc-scenarios tr.is-hit td{background:#f1f9f4;color:#14603a;font-weight:600}
.gc-scenarios tr.is-miss td{color:#a5adb8}

@media(max-width:1000px){.gc-body{grid-template-columns:1fr}.gc-side{position:static}}
@media(max-width:700px){
  .gc-app{padding-top:36px}.gc-tabs{grid-template-columns:1fr;gap:8px}.gc-tabs .ct-tab{padding:12px 14px}.ct-two{grid-template-columns:1fr}
  .gc-table{gap:10px}
  .gc-row{grid-template-columns:minmax(0,1fr) 72px 32px;grid-template-rows:auto auto;gap:6px 8px;padding-bottom:10px;border-bottom:1px dashed var(--line)}
  .gc-row:last-child{border-bottom:0;padding-bottom:0}
  .gc-row input[data-f="name"]{grid-column:1/-1;grid-row:1}
  .gc-row select{grid-column:1;grid-row:2}.gc-row input[data-f="credits"]{grid-column:2;grid-row:2}.gc-row .gc-icon-btn{grid-column:3;grid-row:2}
  .gc-row-head{display:none}
  .gc-score-head{display:none}.gc-score-row{grid-template-columns:minmax(0,1fr) 1fr 1fr 32px}.gc-score-row input[data-f="name"]{grid-column:1/-1}
  .gc-cutoffs{grid-template-columns:repeat(4,1fr)}
  .gc-sem-head{grid-template-columns:minmax(0,1fr) auto}.gc-sem-stats{grid-column:1/2}
  .gc-big strong{font-size:3.4rem}.gc-actions{grid-template-columns:1fr}
}

/* ---- dark mode ---- */
[data-theme="dark"] .gc-app{background:linear-gradient(180deg,var(--dm-surface) 0%,var(--dm-bg) 260px)}
[data-theme="dark"] .gc-tabs .ct-tab,[data-theme="dark"] .gc-card,[data-theme="dark"] .ct-mini-btn,[data-theme="dark"] .gc-inline-btn,[data-theme="dark"] .gc-row input,[data-theme="dark"] .gc-row select,[data-theme="dark"] .gc-score-row input,[data-theme="dark"] .gc-actions .button:not(.button-primary){background:var(--dm-surface);border-color:var(--dm-border);color:var(--dm-text)}
[data-theme="dark"] .gc-tabs .ct-tab small,[data-theme="dark"] .gc-help,[data-theme="dark"] .gc-row-head,[data-theme="dark"] .gc-score-head,[data-theme="dark"] .gc-big-label,[data-theme="dark"] .gc-big-sub,[data-theme="dark"] .gc-honours-legend,[data-theme="dark"] .gc-subhead,[data-theme="dark"] .gc-scenarios th,[data-theme="dark"] .gc-toolbar .ct-bt-count,[data-theme="dark"] .gc-meta,[data-theme="dark"] .gc-meta dt{color:var(--dm-text-muted)}
[data-theme="dark"] .gc-meta dd{color:var(--dm-text)}
[data-theme="dark"] .gc-tabs .ct-tab[aria-selected="true"]{background:linear-gradient(135deg,#1e4a7d,#0b2545);color:#fff}
[data-theme="dark"] .gc-big{background:linear-gradient(180deg,var(--dm-surface-2),var(--dm-surface))}
[data-theme="dark"] .gc-big strong{color:var(--dm-text)}
[data-theme="dark"] .gc-big strong[data-tone="gold"]{color:#f1c866}
[data-theme="dark"] .gc-sem-name{color:var(--dm-text);border-bottom-color:var(--dm-border)}
@media(max-width:700px){[data-theme="dark"] .gc-row{border-bottom-color:var(--dm-border)}}
[data-theme="dark"] .gc-sem-stats{background:rgba(47,111,176,.2);color:#8fc1ea}
[data-theme="dark"] .gc-honours-bar{background:var(--dm-surface-2)}
[data-theme="dark"] .gc-honours-bar i{background:#fff}
[data-theme="dark"] .gc-scenarios td{border-bottom-color:var(--dm-border);color:var(--dm-text)}
[data-theme="dark"] .gc-scenarios tr.is-hit td{background:#12301f;color:#8fd6ac}
[data-theme="dark"] .gc-scenarios tr.is-miss td{color:var(--dm-text-muted)}
[data-theme="dark"] .gc-status[data-tone="ok"]{background:#12301f;border-color:#22563a;color:#8fd6ac}
[data-theme="dark"] .gc-status[data-tone="gold"]{background:#3a2e0d;border-color:#6d571f;color:#f1c866}
[data-theme="dark"] .gc-status[data-tone="warn"]{background:#3a2610;border-color:#6d4a1f;color:#f5b970}
[data-theme="dark"] .gc-status[data-tone="bad"]{background:rgba(192,38,58,.15);border-color:#7a2a36;color:#f19aa6}

/* ---- print: the semester tables plus the result card ---- */
@media print{
  body.gc-print *{visibility:hidden}
  body.gc-print .gc-body,body.gc-print .gc-body *{visibility:visible}
  body.gc-print .gc-body{position:absolute;left:0;top:0;width:100%;grid-template-columns:1fr;gap:16px}
  body.gc-print .gc-side{position:static}
  body.gc-print .gc-card,body.gc-print .gc-sem{box-shadow:none;border-color:#bbb;break-inside:avoid}
  body.gc-print .gc-actions,body.gc-print .gc-toolbar,body.gc-print .gc-icon-btn,body.gc-print .gc-add-course,body.gc-print .pdft-privacy,body.gc-print .gc-prior{display:none!important}
  body.gc-print .gc-row input,body.gc-print .gc-row select,body.gc-print .gc-sem-name{border:0;padding:4px 6px;-webkit-appearance:none;appearance:none}
}