/* Grammar Tips posters (2026-10-13, Jess): one-page quick guides to the grammar that most often
   lowers IELTS scores. Shared look for every poster; each page sets its own accent with
   --acc / --acc-soft / --acc-ink on <body>. Not downloadable: printing shows a note pointing to the site. */
:root{
  color-scheme: light;
  --paper:#E9E2D8; --paper-raised:#FFFFFF;
  --ink:#1E1B4B; --ink-soft:#524D6B; --ink-faint:#5E5877;
  --line:#E4DCEA; --line-soft:#EFEAF3;
  --brand:#6C3B7A; --brand-strong:#1E1B4B; --brand-ink:#FFFFFF; --brand-soft:#E7DFF0;
  --good:#1F8378; --good-soft:#D5F2EE; --good-ink:#14544D;
  --bad:#A0546F; --bad-soft:#F5E4EB; --bad-ink:#6E2F47;
  --font-display:'Baloo 2', ui-rounded, 'Segoe UI Rounded', system-ui, sans-serif;
  --font-body:'Nunito', ui-rounded, 'Segoe UI Rounded', system-ui, -apple-system, sans-serif;
}
@media (prefers-color-scheme: dark){
  :root:not([data-theme="light"]){
    color-scheme: dark;
    --paper:#16142A; --paper-raised:#1E1B36;
    --ink:#EEEAF4; --ink-soft:#B7B0C8; --ink-faint:#857F99;
    --line:#332E4A; --line-soft:#26223D;
    --brand:#B899C3; --brand-strong:#E7DFF0; --brand-ink:#1E1B4B; --brand-soft:#2E2440;
    --good:#6CCFC2; --good-soft:#123330; --good-ink:#BDEDE6;
    --bad:#E39AB4; --bad-soft:#3A1E2A; --bad-ink:#F5D3DF;
  }
}
:root[data-theme="dark"]{
  color-scheme: dark;
  --paper:#16142A; --paper-raised:#1E1B36;
  --ink:#EEEAF4; --ink-soft:#B7B0C8; --ink-faint:#857F99;
  --line:#332E4A; --line-soft:#26223D;
  --brand:#B899C3; --brand-strong:#E7DFF0; --brand-ink:#1E1B4B; --brand-soft:#2E2440;
  --good:#6CCFC2; --good-soft:#123330; --good-ink:#BDEDE6;
  --bad:#E39AB4; --bad-soft:#3A1E2A; --bad-ink:#F5D3DF;
}
*{box-sizing:border-box}
body{margin:0;background:var(--paper);color:var(--ink);font-family:var(--font-body);font-size:17px;line-height:1.5;-webkit-font-smoothing:antialiased}
a{color:var(--brand)}
h1,h2,h3{font-family:var(--font-display);line-height:1.1;margin:0}

/* top bar (same as the homepage) */
.topbar{position:sticky;top:0;z-index:40;background:color-mix(in srgb, var(--paper) 88%, transparent);backdrop-filter:blur(10px);border-bottom:1px solid var(--line)}
.topbar-inner{max-width:1100px;margin:0 auto;padding:14px 20px;display:flex;align-items:center;gap:12px}
.wordmark{display:flex;align-items:center;text-decoration:none}
.gbr-icon{width:40px;height:40px;border-radius:10px;background:#E7DFF0;display:flex;align-items:center;justify-content:center}
.gbr-icon svg{width:28px;height:28px}
.login{white-space:nowrap;flex-shrink:0;font-weight:800;font-size:.95rem;color:var(--ink);text-decoration:none;border:1.5px solid var(--line);border-radius:999px;padding:10px 18px;background:var(--paper-raised)}

.wrap{max-width:960px;margin:0 auto;padding:22px 20px 10px}
.actions{display:flex;justify-content:space-between;align-items:center;gap:12px;flex-wrap:wrap;margin:0 0 14px}
.crumb{font-weight:800;font-size:.85rem;letter-spacing:.1em;text-transform:uppercase;color:var(--ink-faint)}
.print{font:inherit;font-weight:800;font-size:.95rem;color:var(--brand-ink);background:var(--brand);border:none;border-radius:999px;padding:11px 20px;cursor:pointer;box-shadow:0 10px 22px -12px rgba(108,59,122,.6)}

/* the poster */
.poster{background:var(--paper-raised);border-radius:28px;overflow:hidden;box-shadow:0 18px 40px -22px rgba(30,27,75,.45);border:1.5px solid var(--line)}
.p-head{background:var(--acc);color:#fff;padding:26px 30px 22px;display:flex;gap:20px;align-items:center;position:relative;overflow:hidden}
.p-head::after{content:"";position:absolute;right:-60px;top:-60px;width:220px;height:220px;border-radius:50%;background:rgba(255,255,255,.12)}
.p-emoji{flex-shrink:0;width:84px;height:84px;border-radius:22px;background:rgba(255,255,255,.18);display:flex;align-items:center;justify-content:center;font-size:2.9rem}
.p-kicker{font-weight:800;font-size:.8rem;letter-spacing:.14em;text-transform:uppercase;opacity:.9;margin:0 0 2px}
.p-head h1{font-size:clamp(2rem,5.5vw,3rem);color:#fff;font-weight:800}
.p-why{margin:6px 0 0;font-size:1.08rem;font-weight:700;max-width:52ch}
.p-body{padding:22px 26px 10px;display:grid;gap:16px;grid-template-columns:repeat(2,minmax(0,1fr))}
.box{border:2px solid var(--line);border-radius:20px;padding:16px 18px;background:var(--paper-raised)}
.box.full{grid-column:1 / -1}
.box.tint{background:var(--acc-soft);border-color:transparent}
.box h2{font-size:1.3rem;color:var(--acc-ink);margin:0 0 8px;display:flex;align-items:center;gap:8px}
.box h2 .n{width:28px;height:28px;border-radius:9px;background:var(--acc);color:#fff;font-size:1rem;display:inline-flex;align-items:center;justify-content:center;flex-shrink:0}
.box p{margin:0 0 6px}
.box ul{margin:0;padding-left:20px}
.box li{margin:3px 0}
.formula{display:flex;flex-wrap:wrap;align-items:center;justify-content:center;gap:8px;margin:4px 0 10px}
.formula span{font-family:var(--font-display);font-weight:800;font-size:1.2rem;padding:6px 14px;border-radius:12px;background:var(--paper-raised);border:2px solid var(--acc);color:var(--acc-ink)}
.formula b{font-family:var(--font-display);font-size:1.4rem;color:var(--ink-faint)}
.ex{font-style:italic}
.ex mark,.k{background:color-mix(in srgb, var(--acc) 22%, transparent);color:inherit;font-style:normal;font-weight:800;border-radius:5px;padding:0 4px}
table.t{width:100%;border-collapse:collapse;font-size:.98rem}
table.t th{text-align:left;font-size:.78rem;letter-spacing:.08em;text-transform:uppercase;color:var(--ink-faint);padding:4px 8px;border-bottom:2px solid var(--line)}
table.t td{padding:6px 8px;border-bottom:1px solid var(--line-soft);vertical-align:top}
table.t tr:last-child td{border-bottom:none}
.fix{display:grid;gap:8px}
.fix div{display:grid;grid-template-columns:1fr auto 1fr;gap:10px;align-items:center}
.fix .no,.fix .yes{border-radius:12px;padding:7px 11px;font-weight:700;font-size:.98rem}
.fix .no{background:var(--bad-soft);color:var(--bad-ink)}
.fix .no::before{content:"✗ ";font-weight:900}
.fix .yes{background:var(--good-soft);color:var(--good-ink)}
.fix .yes::before{content:"✓ ";font-weight:900}
.fix .arr{color:var(--ink-faint);font-weight:900}
.fix small{grid-column:1 / -1;margin:-4px 0 2px;color:var(--ink-soft);font-weight:600}
.tags{display:flex;flex-wrap:wrap;gap:8px;margin:0}
.tags span{font-weight:800;font-size:.9rem;background:var(--paper-raised);border:1.5px solid var(--acc);color:var(--acc-ink);border-radius:999px;padding:3px 11px}
.p-foot{display:flex;justify-content:space-between;align-items:center;gap:12px;flex-wrap:wrap;padding:12px 26px 18px;font-size:.85rem;font-weight:700;color:var(--ink-faint)}
.p-foot b{color:var(--brand)}

/* more posters + call to action (screen only) */
.more{margin:22px 0 0;display:grid;gap:12px;grid-template-columns:repeat(auto-fit,minmax(200px,1fr))}
.more a{display:flex;gap:12px;align-items:center;text-decoration:none;color:var(--ink);background:var(--paper-raised);border:1.5px solid var(--line);border-radius:18px;padding:12px 14px;font-weight:800}
.more a:hover{border-color:var(--brand)}
.more a .e{font-size:1.6rem}
.more a[aria-current]{opacity:.5;pointer-events:none}
.cta{margin:20px 0 0;background:var(--brand-soft);border-radius:22px;padding:20px;text-align:center}
.cta p{margin:0 0 12px;font-weight:700;font-size:1.05rem}
.cta a{display:inline-block;margin:4px;font-weight:800;text-decoration:none;border-radius:999px;padding:11px 20px;background:var(--brand);color:var(--brand-ink)}
.cta a.ghost{background:var(--paper-raised);color:var(--brand);border:1.5px solid var(--brand)}

.gbr-footer{border-top:1px solid var(--line);margin-top:30px;padding:30px 20px 40px;text-align:center;color:var(--ink-soft);font-size:.9rem}
.gbr-footer nav{display:flex;gap:8px 20px;justify-content:center;flex-wrap:wrap;margin:8px 0 12px}
.gbr-footer nav a{font-weight:700;text-decoration:none}
.gbr-footer .gf-report{font:inherit;font-weight:800;color:var(--brand);background:var(--brand-soft);border:1.5px solid var(--brand);border-radius:999px;padding:10px 18px;cursor:pointer;margin-bottom:12px}
.gbr-footer p{font-size:.78rem;color:var(--ink-faint);max-width:62ch;margin:0 auto}

@media (prefers-color-scheme: dark){ :root:not([data-theme="light"]) .box h2{color:var(--ink)} }
:root[data-theme="dark"] .box h2{color:var(--ink)}

@media (max-width:700px){
  body{font-size:16px}
  .topbar-inner{padding:10px 16px;gap:8px}
  .login{padding:8px 13px;font-size:.9rem}
  .wrap{padding:16px 16px 6px}
  .p-head{padding:20px 18px 18px;gap:14px;align-items:flex-start}
  .p-emoji{width:60px;height:60px;font-size:2rem;border-radius:16px}
  .p-body{grid-template-columns:1fr;padding:16px 14px 6px;gap:12px}
  .box{padding:14px}
  .fix div{grid-template-columns:1fr}
  .fix .arr{display:none}
  .p-foot{padding:10px 16px 14px}
  table.t{font-size:.92rem}
}

/* Printing shows a short note, not the poster: the guides live on the site. */
.print-note{display:none}
@media print{
  body *{display:none !important}
  body .print-note, body .print-note *{display:block !important}
  .print-note{font:16pt/1.4 var(--font-body);color:#1E1B4B;padding:40px;text-align:center}
}
.poster{-webkit-touch-callout:none}

/* 9-tenses grid */
table.grid9{table-layout:fixed}
table.grid9 th{font-size:.82rem}
table.grid9 tr > th:first-child{width:78px;font-family:var(--font-display);font-size:1.05rem;letter-spacing:0;text-transform:none;color:var(--acc-ink);vertical-align:middle}
table.grid9 td{background:var(--acc-soft);border:3px solid var(--paper-raised);border-radius:12px;padding:8px 10px;font-size:.92rem;line-height:1.35}
table.grid9 td b:first-child{font-family:var(--font-display);font-size:1.02rem}
table.grid9 td small{color:var(--ink-soft);font-weight:700}
@media (max-width:700px){
  table.grid9, table.grid9 tbody, table.grid9 tr, table.grid9 td, table.grid9 th{display:block;width:auto !important}
  table.grid9 tr:first-child{display:none}
  table.grid9 tr > th:first-child{margin:10px 0 2px;border:none;padding:0}
  table.grid9 td{margin:0 0 6px}
}