/* Info pages: /method (m-), /contact (c-), 404 (nf-). Tokens come from site.css. */

/* .sec / .sec-tight set `padding: X 0`, which would wipe the side gutter of .wrap on the same element */
.wrap.sec, .wrap.sec-tight { padding-left: var(--gut); padding-right: var(--gut); }

/* ================= METHOD ================= */
.m-hero { padding-top: clamp(40px, 6vw, 88px); padding-bottom: clamp(48px, 6vw, 96px); }
.m-hero-grid { display: grid; grid-template-columns: minmax(0, 7fr) minmax(0, 5fr); gap: clamp(32px, 5vw, 80px); align-items: end; }
.m-hero h1 { font-size: clamp(42px, 6.2vw, 88px); max-width: 12em; }
.m-lede { font-size: clamp(18px, 1.5vw, 20px); max-width: 36em; }
.m-facts { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); margin: 36px 0 0; border-top: 2px solid var(--ink); }
.m-facts div { padding: 16px 20px 16px 0; border-bottom: 1px solid var(--line); }
.m-facts div:nth-child(odd) { border-right: 1px solid var(--line); }
.m-facts div:nth-child(even) { padding-left: 20px; }
.m-facts dt { font: 500 13px/1.3 var(--f-mono); letter-spacing: .08em; text-transform: uppercase; color: var(--muted); margin-bottom: 6px; }
.m-facts dd { margin: 0; font-weight: 600; font-size: 17px; line-height: 1.35; }
.m-facts .num { font-size: 1.25em; color: var(--blue); }
.m-hero-img { margin: 0; aspect-ratio: 4 / 5; }
.m-hero-img img { height: 100%; }

/* timeline */
.m-time-h { max-width: 14em; }
.m-track { list-style: none; margin: 40px 0 0; padding: 0; display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); position: relative; }
.m-track::before { content: ""; position: absolute; left: 0; right: 0; top: 11px; height: 2px; background: rgba(255, 255, 255, .35); }
.m-track li { position: relative; padding: 44px 28px 0 0; }
.m-track li::before { content: ""; position: absolute; left: 0; top: 4px; width: 16px; height: 16px; background: var(--navy); border: 2px solid #fff; }
.m-track li:last-child::before { background: #fff; }
.m-when { display: block; font: 500 13px/1.3 var(--f-mono); letter-spacing: .08em; text-transform: uppercase; color: #8fb4ee; margin-bottom: 10px; }
.m-track h3 { font-size: clamp(22px, 2vw, 28px); }
.m-track p { color: var(--on-dark); font-size: 16px; margin: 0; max-width: 22em; }

/* lesson parts: figure + table */
.m-parts-grid { display: grid; grid-template-columns: minmax(0, 4fr) minmax(0, 8fr); gap: clamp(32px, 5vw, 72px); align-items: start; }
.m-parts-img { margin: 0; aspect-ratio: 3 / 4; position: relative; }
.m-parts-img img { height: 100%; }
.m-parts-img figcaption { position: absolute; left: 0; bottom: 0; margin: 0; background: var(--ink); color: #dfe5ec; padding: 8px 12px; }
.m-parts-img figcaption b { color: #8fb4ee; }
.m-scroll { overflow-x: auto; margin-top: 28px; border-top: 2px solid var(--ink); }
.m-scroll:focus-visible { outline-offset: 4px; }
.m-table { width: 100%; min-width: 620px; border-collapse: collapse; font-size: 16px; }
.m-table th, .m-table td { text-align: left; vertical-align: top; padding: 14px 16px 14px 0; border-bottom: 1px solid var(--line); }
.m-table thead th { font: 500 13px/1.3 var(--f-mono); letter-spacing: .08em; text-transform: uppercase; color: var(--muted); padding-top: 12px; }
.m-table tbody th { font: 700 20px/1.1 var(--f-display); text-transform: uppercase; white-space: nowrap; }
.m-table td.num { color: var(--blue); font-size: 15px; }
.m-keep { font-weight: 600; color: var(--ok); }

/* practice: steps + kit index */
.m-practice { background: var(--surface); border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); }
.m-practice-head { display: grid; grid-template-columns: minmax(0, 7fr) minmax(0, 5fr); gap: clamp(24px, 4vw, 64px); align-items: end; }
.m-practice-head h2 { max-width: 13em; }
.m-practice-img { margin: 0; aspect-ratio: 4 / 3; }
.m-practice-img img { height: 100%; }
.m-steps { list-style: none; margin: clamp(40px, 5vw, 64px) 0 0; padding: 0; display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: clamp(20px, 3vw, 48px); }
.m-steps li { padding-top: 20px; }
.m-step-n { display: block; font-size: clamp(48px, 5vw, 72px); line-height: 1; color: var(--navy); margin-bottom: 14px; }
.m-steps h3 { margin-bottom: .3em; }
.m-steps p { margin: 0; }
.m-kit-h { margin-top: clamp(48px, 6vw, 80px); }
.m-kit-note { margin-bottom: 20px; }
.m-kit { columns: 3 300px; column-gap: 40px; column-rule: 1px solid var(--line); }
.m-kit-item { break-inside: avoid; padding: 18px 0 20px; border-top: 1px solid var(--ink); }
.m-kit-item .spec { margin-bottom: 6px; }
.m-kit-item h4 { font-size: 21px; line-height: 1.1; margin-bottom: 10px; }
.m-kit-item h4 a { color: var(--ink); text-decoration: none; }
.m-kit-item h4 a:hover { color: var(--blue); text-decoration: underline; }
.m-kit-item ul { margin: 0; padding: 0; list-style: none; font-size: 16px; }
.m-kit-item li { padding: 5px 0 5px 20px; position: relative; line-height: 1.4; }
.m-kit-item li::before { content: ""; position: absolute; left: 0; top: .72em; width: 10px; height: 2px; background: var(--blue); }

/* test + certificate */
.m-cert h2 { max-width: 15em; }
.m-flow { list-style: none; margin: 36px 0 0; padding: 0; display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); border: 2px solid var(--ink); counter-reset: none; }
.m-flow li { position: relative; display: grid; gap: 4px; padding: 20px 24px 22px; background: var(--surface); }
.m-flow li + li { border-left: 2px solid var(--ink); }
.m-flow li + li::before { content: ""; position: absolute; left: -9px; top: 50%; width: 14px; height: 14px; background: var(--surface); border-top: 2px solid var(--ink); border-right: 2px solid var(--ink); transform: translateY(-50%) rotate(45deg); }
.m-flow li:last-child { background: var(--navy); color: #fff; }
.m-flow .num { font-size: 14px; color: var(--blue); }
.m-flow li:last-child .num { color: #8fb4ee; }
.m-flow b { font: 700 24px/1.05 var(--f-display); text-transform: uppercase; }
.m-flow small { font-size: 15px; color: var(--muted); }
.m-flow li:last-child small { color: var(--muted-d); }
.m-cert-grid { display: grid; grid-template-columns: minmax(0, 5fr) minmax(0, 7fr); gap: clamp(28px, 4vw, 64px); margin-top: clamp(32px, 4vw, 56px); align-items: start; }
.m-cert-img { margin: 0; aspect-ratio: 3 / 2; }
.m-cert-img img { height: 100%; }
.m-cert-text { display: grid; gap: 28px; }
.m-is, .m-isnt { padding-left: 20px; border-left: 4px solid var(--ok); }
.m-isnt { border-left-color: var(--err); }
.m-is p, .m-isnt p { margin: 0; }

/* scope compare table */
.m-scope { background: var(--surface-2); }
.m-cmp { min-width: 520px; }
.m-cmp th, .m-cmp td { width: 50%; padding: 16px 24px 16px 0; }
.m-cmp tbody td:first-child { font-weight: 600; }
.m-cmp tbody td:first-child::before, .m-cmp tbody td:last-child::before { font: 500 14px/1 var(--f-mono); margin-right: 10px; }
.m-cmp tbody td:first-child::before { content: "+"; color: var(--ok); }
.m-cmp tbody td:last-child::before { content: "–"; color: var(--err); }
.m-cmp tbody td:last-child { color: var(--muted); }

/* FAQ */
.m-faq-grid { display: grid; grid-template-columns: minmax(0, 4fr) minmax(0, 8fr); gap: clamp(28px, 5vw, 80px); align-items: start; }
.m-faq-list { border-top: 2px solid var(--ink); }
.m-faq-list details { border-bottom: 1px solid var(--line); }
.m-faq-list summary { display: flex; gap: 18px; align-items: baseline; padding: 18px 40px 18px 0; cursor: pointer; list-style: none; position: relative;
  font-weight: 600; font-size: 18px; line-height: 1.35; }
.m-faq-list summary::-webkit-details-marker { display: none; }
.m-faq-list summary::after { content: "+"; position: absolute; right: 4px; top: 14px; font: 500 22px/1 var(--f-mono); color: var(--blue); }
.m-faq-list details[open] summary::after { content: "–"; }
.m-faq-list summary .num { font-size: 14px; color: var(--blue); flex: none; }
.m-faq-list summary:hover { color: var(--navy); }
.m-faq-list details p { margin: 0 0 20px; padding-left: 38px; max-width: 40em; }

/* next step band */
.m-next-in { display: flex; flex-wrap: wrap; align-items: center; justify-content: space-between; gap: 24px 40px; }
.m-next h2 { margin: 0; font-size: clamp(30px, 3.4vw, 46px); max-width: 16em; }
.m-next-btns { display: flex; flex-wrap: wrap; gap: 12px; }

@media (max-width: 960px) {
  .m-hero-grid, .m-parts-grid, .m-practice-head, .m-cert-grid, .m-faq-grid { grid-template-columns: minmax(0, 1fr); }
  .m-hero-img { aspect-ratio: 16 / 10; order: -1; }
  .m-parts-img { aspect-ratio: 16 / 10; max-width: 640px; }
  .m-track { grid-template-columns: minmax(0, 1fr) minmax(0, 1fr); row-gap: 36px; }
  .m-track::before { display: none; }
  .m-track li { border-top: 2px solid rgba(255, 255, 255, .35); }
  .m-steps { grid-template-columns: minmax(0, 1fr); }
  .m-flow { grid-template-columns: minmax(0, 1fr); }
  .m-flow li + li { border-left: 0; border-top: 2px solid var(--ink); }
  .m-flow li + li::before { left: 50%; top: -9px; transform: translateX(-50%) rotate(135deg); }
}
@media (max-width: 560px) {
  .m-facts { grid-template-columns: minmax(0, 1fr); }
  .m-facts div:nth-child(odd) { border-right: 0; }
  .m-facts div:nth-child(even) { padding-left: 0; }
  .m-track { grid-template-columns: minmax(0, 1fr); }
  .m-faq-list details p { padding-left: 0; }
  .m-next-btns .btn { flex: 1 1 100%; justify-content: center; }
}

/* ================= CONTACT ================= */
.c-head { padding-top: clamp(40px, 6vw, 88px); padding-bottom: clamp(48px, 6vw, 88px); }
.c-head-grid { display: grid; grid-template-columns: minmax(0, 7fr) minmax(0, 4fr); gap: clamp(32px, 5vw, 80px); align-items: end; }
.c-head h1 { font-size: clamp(42px, 6.2vw, 88px); max-width: 11em; }
.c-lede { font-size: clamp(18px, 1.5vw, 20px); max-width: 34em; }
.c-ways { margin: 32px 0 0; border-top: 2px solid var(--ink); }
.c-ways div { display: grid; grid-template-columns: 90px minmax(0, 1fr); gap: 16px; padding: 14px 0; border-bottom: 1px solid var(--line); align-items: baseline; }
.c-ways dt { margin: 0; }
.c-ways dd { margin: 0; font-size: 17px; }
.c-ways dd a { font-weight: 600; overflow-wrap: anywhere; }
.c-head-img { margin: 0; aspect-ratio: 9 / 11; }
.c-head-img img { height: 100%; }

.c-write { background: var(--surface); border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); scroll-margin-top: 72px; }
.c-write-grid { display: grid; grid-template-columns: minmax(0, 7fr) minmax(0, 4fr); gap: clamp(32px, 5vw, 80px); align-items: start; }
.c-notice { margin: 0 0 28px; }
.c-form { display: grid; gap: 22px; }
.c-row { display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 1fr); gap: 20px; }
.c-field { display: grid; gap: 8px; }
.c-field small { font-size: 14px; }
.c-hp { position: absolute; left: -9999px; width: 1px; height: 1px; overflow: hidden; }
.c-topics { margin: 0; padding: 0; border: 0; min-width: 0; }
.c-topics legend { font-weight: 600; font-size: 15px; padding: 0; margin-bottom: 10px; }
.c-topic-row { display: flex; flex-wrap: wrap; gap: 8px; }
.c-topic { position: relative; font-weight: 500; }
.c-topic input { position: absolute; opacity: 0; width: 1px; height: 1px; }
.c-topic span { display: inline-flex; align-items: center; min-height: 44px; padding: 0 16px; border: 1.5px solid #8f8a80; background: #fff; cursor: pointer; font-size: 15px; transition: background .15s, color .15s, border-color .15s; }
.c-topic span:hover { border-color: var(--navy); }
.c-topic input:checked + span { background: var(--navy); border-color: var(--navy); color: #fff; }
.c-topic input:focus-visible + span { outline: 3px solid var(--blue); outline-offset: 2px; }
.c-submit { display: flex; flex-wrap: wrap; align-items: center; gap: 12px 24px; }
.c-submit p { margin: 0; font-size: 14px; max-width: 30em; }

.c-aside { border-top: 2px solid var(--ink); padding-top: 20px; }
.c-list { margin: 0 0 28px; padding: 0; list-style: none; counter-reset: c; }
.c-list li { counter-increment: c; position: relative; padding: 10px 0 10px 40px; border-bottom: 1px solid var(--line); font-size: 16px; line-height: 1.45; }
.c-list li::before { content: counter(c, decimal-leading-zero); position: absolute; left: 0; top: 12px; font: 500 14px/1.3 var(--f-mono); color: var(--blue); }
.c-photo figure { margin: 0 0 14px; aspect-ratio: 3 / 2; }
.c-photo img { height: 100%; }
.c-photo p { font-size: 16px; margin: 0; }
.c-photo a { overflow-wrap: anywhere; }

.c-short { list-style: none; margin: 0; padding: 0; display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); border-top: 2px solid var(--ink); }
.c-short li + li { border-left: 1px solid var(--line); }
.c-short a { display: block; height: 100%; padding: 18px 20px 20px; color: var(--ink); text-decoration: none; font-weight: 600; line-height: 1.35; transition: background .2s; }
.c-short li:first-child a { padding-left: 0; }
.c-short a:hover { background: var(--surface); color: var(--navy); }
.c-short .spec { display: block; margin-bottom: 8px; color: var(--blue); }

@media (max-width: 960px) {
  .c-head-grid, .c-write-grid { grid-template-columns: minmax(0, 1fr); }
  .c-head-img { aspect-ratio: 16 / 9; order: -1; }
  .c-short { grid-template-columns: minmax(0, 1fr) minmax(0, 1fr); }
  .c-short li:nth-child(3) { border-left: 0; }
  .c-short li:nth-child(3) a { padding-left: 0; }
  .c-short li:nth-child(n+3) { border-top: 1px solid var(--line); }
}
@media (max-width: 560px) {
  .c-row { grid-template-columns: minmax(0, 1fr); }
  .c-ways div { grid-template-columns: minmax(0, 1fr); gap: 4px; }
  .c-short { grid-template-columns: minmax(0, 1fr); }
  .c-short li + li { border-left: 0; border-top: 1px solid var(--line); }
  .c-short a { padding-left: 0; }
  .c-submit .btn { width: 100%; justify-content: center; }
}

/* ================= 404 ================= */
.nf { padding-top: clamp(40px, 6vw, 88px); padding-bottom: clamp(64px, 8vw, 120px); }
.nf-grid { display: grid; grid-template-columns: minmax(0, 7fr) minmax(0, 5fr); gap: clamp(32px, 5vw, 80px); align-items: center; }
.nf-path { text-transform: none; overflow-wrap: anywhere; color: var(--ink); }
.nf-code { font-size: clamp(96px, 16vw, 220px); line-height: .85; margin: 0 0 12px; color: var(--navy); letter-spacing: -.04em; }
.nf h1 { font-size: clamp(38px, 5vw, 68px); }
.nf-lede { font-size: clamp(18px, 1.5vw, 20px); max-width: 32em; }
.nf-links { list-style: none; margin: 28px 0 24px; padding: 0; border-top: 2px solid var(--ink); max-width: 560px; }
.nf-links a { display: flex; align-items: baseline; gap: 18px; padding: 14px 0; border-bottom: 1px solid var(--line); color: var(--ink); text-decoration: none;
  font: 700 clamp(22px, 2.2vw, 28px)/1.1 var(--f-display); text-transform: uppercase; transition: padding .2s, color .2s; }
.nf-links a:hover { color: var(--blue); padding-left: 8px; }
.nf-links .spec { margin: 0; color: var(--blue); }
.nf-img { margin: 0; aspect-ratio: 4 / 5; }
.nf-img img { height: 100%; }
@media (max-width: 860px) {
  .nf-grid { grid-template-columns: minmax(0, 1fr); }
  .nf-img { aspect-ratio: 16 / 9; }
}