/* About page — the Learn-to-Action Community story (brief, Oct 2026).
   Executive tone: calm surfaces, blue as the only accent; the Builder track
   is allowed to feel a little more approachable. */
.about-page section.band { padding-block: 76px; }
.about-page h2.section-title { text-wrap: balance; }
:lang(th) .about-page h2.section-title { line-height: 1.4; }
.about-page .section-body { font-size: 17px; line-height: 1.8; }
.about-page .text-link { display: inline-flex; align-items: center; gap: 24px; color: var(--bs-text-link); font-weight: 700; text-decoration: none; margin-top: 20px; padding-bottom: 6px; border-bottom: 1px solid var(--bs-border); }
.about-page .text-link:hover { border-color: currentColor; }
.about-page a:focus-visible { outline: 3px solid var(--bs-text-link); outline-offset: 4px; }

/* ---- Hero: blue band, copy + a real community photo ---- */
.about-hero { position: relative; display: grid; grid-template-columns: 1.1fr 1fr; gap: 56px; align-items: center; padding-block: 64px; }
.about-hero h1 { font-family: var(--bs-font-display); font-size: clamp(34px, 4.6vw, 54px); line-height: 1.2; letter-spacing: -0.01em; color: var(--bs-paper); text-wrap: balance; }
:lang(th) .about-hero h1 { line-height: 1.32; }
.about-hero h1 .thin { font-weight: 300; font-size: .8em; }
.about-tagline { margin-top: 22px; font-size: 18px; line-height: 1.7; color: rgba(255, 255, 255, .88); max-width: 30em; }
.about-hero-photo { margin: 0; border-radius: var(--bs-radius-lg); overflow: hidden; aspect-ratio: 3 / 2; background: rgba(255, 255, 255, .08); box-shadow: 0 24px 60px rgba(0, 20, 80, .28); }
.about-hero-photo img { display: block; width: 100%; height: 100%; object-fit: cover; }

/* ---- Problem: the gap between knowing and doing ---- */
.about-problem-sub { font-size: clamp(19px, 2.2vw, 24px); line-height: 1.6; font-weight: 300; color: var(--bs-text-subtle); max-width: 30em; }
.about-problem-sub, .about-problem .section-title { margin-bottom: 0; }
.about-problem .section-title + .about-problem-sub { margin-top: 10px; }
.gap-diagram { display: flex; align-items: center; gap: 14px; margin-block: 40px 32px; max-width: 760px; }
.gap-end { flex: none; padding: 10px 22px; border-radius: var(--bs-radius-md); border: 1.5px solid var(--bs-border); font-weight: 700; font-size: 17px; }
.gap-do { background: var(--bs-blue); border-color: var(--bs-blue); color: var(--bs-paper); }
.gap-line { flex: 1; min-width: 16px; border-top: 2px dashed var(--bs-border); }
.gap-mid { flex: none; display: flex; flex-direction: column; align-items: center; gap: 6px; font: 700 11px/1.2 var(--bs-font-label); letter-spacing: var(--bs-track-label); text-transform: uppercase; color: var(--bs-text-link); }

/* ---- Method: Learn → Practice → Act ---- */
.about-method { background: var(--bs-bg-surface); }
.method-steps { list-style: none; display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; margin-top: 36px; counter-reset: none; }
.method-step { position: relative; display: flex; flex-direction: column; background: var(--bs-bg); border: 1px solid var(--bs-border); border-radius: var(--bs-radius-lg); padding: 26px 26px 24px; }
.method-step + .method-step::before { content: '→'; position: absolute; left: -17px; top: 26px; width: 14px; text-align: center; color: var(--bs-text-link); font-weight: 700; }
.step-ref { display: flex; align-items: baseline; gap: 10px; font: 700 12px/1.5 var(--bs-font-label); letter-spacing: var(--bs-track-label); color: var(--bs-text-link); }
.step-no { color: var(--bs-text-muted); }
.method-step h3 { margin-top: 14px; font-size: 24px; font-weight: 700; line-height: 1.4; }
.method-step p { margin-top: 8px; font-size: 16px; line-height: 1.75; color: var(--bs-text-subtle); flex: 1; }
.format-list { list-style: none; display: flex; flex-wrap: wrap; gap: 6px; margin-top: 18px; }
.format-list li { font: 600 12.5px/1.4 var(--bs-font-label); padding: 5px 10px; border-radius: var(--bs-radius-sm); background: var(--bs-bg-raised); color: var(--bs-text-subtle); }
.showcase { display: flex; align-items: center; gap: 24px; margin-top: 20px; padding: 22px 26px; border-radius: var(--bs-radius-lg); background: var(--bs-void); color: var(--bs-paper); }
.showcase .step-ref { flex: none; color: var(--bs-blue-light); }
.showcase p { font-size: 16.5px; line-height: 1.7; color: rgba(255, 255, 255, .86); }
.showcase strong { color: var(--bs-paper); }
html[data-theme="dark"] .showcase { background: var(--bs-blue); }
html[data-theme="dark"] .showcase .step-ref { color: var(--bs-paper); }

/* ---- Members: two tracks ---- */
.track-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 20px; margin-top: 36px; }
.track { border-radius: var(--bs-radius-lg); padding: 30px 30px 28px; }
.track-name { font-family: var(--bs-font-display); font-size: 26px; letter-spacing: .01em; }
.track-for { margin-top: 10px; font-size: 17px; line-height: 1.7; font-weight: 600; }
.track ul { list-style: none; margin-top: 18px; display: grid; gap: 10px; }
.track li { position: relative; padding-left: 22px; font-size: 16px; line-height: 1.65; }
.track li::before { content: ''; position: absolute; left: 0; top: .62em; width: 9px; height: 9px; border-radius: 2px; background: currentColor; opacity: .6; }
.track-exec { background: var(--bs-void); color: var(--bs-paper); }
.track-exec li, .track-exec .track-for { color: rgba(255, 255, 255, .86); }
.track-exec .track-name { color: var(--bs-paper); }
.track-builder { background: var(--bs-blue-wash); color: var(--bs-text); border: 1px solid #D6E4FF; }
.track-builder .track-name { color: var(--bs-blue); }
.track-builder li::before { background: var(--bs-blue); opacity: 1; }
html[data-theme="dark"] .track-exec { background: var(--bs-bg-raised); border: 1px solid var(--bs-border); }
html[data-theme="dark"] .track-builder { background: var(--bs-blue); color: var(--bs-paper); border-color: var(--bs-blue); }
html[data-theme="dark"] .track-builder .track-name { color: var(--bs-paper); }
html[data-theme="dark"] .track-builder li::before { background: var(--bs-paper); }

/* ---- Differentiators: dark panel, four points ---- */
.about-page .about-diff { background: var(--bs-void); color: var(--bs-paper); border-top: none; }
.about-diff .section-label, .about-diff .point p { color: rgba(255, 255, 255, .86); }
.about-diff .section-label .num, .about-diff .point .ref { color: var(--bs-blue-light); }
html[data-theme="dark"] .about-page .about-diff { background: var(--bs-blue); }
html[data-theme="dark"] .about-diff .section-label .num, html[data-theme="dark"] .about-diff .point .ref { color: var(--bs-paper); }
.diff-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 36px 48px; margin-top: 40px; }
.about-diff .point { border-top: 1px solid rgba(255, 255, 255, .25); }
.about-diff .point h3 { font-size: 21px; }
.about-diff .point p { font-size: 16px; line-height: 1.8; }

/* ---- Already happened ---- */
.done-grid { display: grid; grid-template-columns: 1.25fr 1fr; gap: 20px; margin-top: 36px; }
.done-card { display: flex; flex-direction: column; border: 1px solid var(--bs-border); border-radius: var(--bs-radius-lg); overflow: hidden; background: var(--bs-bg); }
.done-photos { display: grid; grid-template-columns: 1.4fr 1fr; gap: 3px; aspect-ratio: 2.1 / 1; background: var(--bs-bg-raised); }
.done-photos img { display: block; width: 100%; height: 100%; object-fit: cover; min-width: 0; }
/* No event poster here: posters may carry partner logos the brief holds back. */
.done-poster { position: relative; aspect-ratio: 2.1 / 1; background: var(--bs-blue); display: flex; flex-direction: column; align-items: center; justify-content: center; gap: 14px; overflow: hidden; }
.done-poster::before, .done-poster::after { content: ''; position: absolute; aspect-ratio: 1; border-radius: 18px; background: var(--bs-on-blue-faint); }
.done-poster::before { width: 140px; top: -50px; left: -30px; }
.done-poster::after { width: 110px; bottom: -40px; right: 12%; }
.done-mark { position: relative; width: 22%; max-width: 92px; height: auto; }
.done-poster-label { position: relative; font: 700 12px/1 var(--bs-font-label); letter-spacing: .2em; color: var(--bs-paper); }
.done-body { flex: 1; padding: 24px 26px 26px; display: flex; flex-direction: column; align-items: flex-start; }
.done-tag { font: 700 12px/1.5 var(--bs-font-label); letter-spacing: .06em; color: var(--bs-text-link); }
.done-body h3 { margin-top: 8px; font-size: 24px; font-weight: 700; line-height: 1.4; }
.done-body p { margin-top: 8px; font-size: 16px; line-height: 1.75; color: var(--bs-text-subtle); flex: 1; }
.chip-soon { vertical-align: middle; margin-left: 6px; font-size: 11px; border-radius: var(--bs-radius-sm); background: var(--bs-blue); border-color: var(--bs-blue); color: var(--bs-paper); }

/* ---- Team ---- */
.about-team { background: var(--bs-bg-surface); }
.team-layout { display: grid; grid-template-columns: 1fr 1.1fr; gap: 56px; align-items: center; }
.team-photo { margin: 0; border-radius: var(--bs-radius-lg); overflow: hidden; aspect-ratio: 1060 / 536; background: var(--bs-bg-raised); }
.team-photo img { display: block; width: 100%; height: 100%; object-fit: cover; }

/* ---- Join ---- */
.join-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 20px; margin-top: 36px; }
.join-card { display: flex; flex-direction: column; align-items: flex-start; padding: 32px 30px 30px; border: 1px solid var(--bs-border); border-radius: var(--bs-radius-lg); }
.join-card h3 { font-size: 24px; font-weight: 700; line-height: 1.4; }
.join-card p { margin-top: 10px; margin-bottom: 26px; font-size: 16px; line-height: 1.75; color: var(--bs-text-subtle); flex: 1; }
.join-community { background: var(--bs-blue); border-color: var(--bs-blue); color: var(--bs-paper); }
.join-community p { color: rgba(255, 255, 255, .88); }
.about-page .btn-on-blue { background: var(--bs-paper); color: var(--bs-blue); }
.about-page .btn-on-blue:hover { background: var(--bs-grey); }
.about-page .join-community .btn:focus-visible { outline-color: var(--bs-paper); }
.join-contact { margin-top: 22px; font: 600 14px/1.8 var(--bs-font-label); letter-spacing: .04em; color: var(--bs-text-muted); }
.join-contact a { color: inherit; text-decoration: none; }
.join-contact a:hover { color: var(--bs-text-link); }

/* ---- Small screens ---- */
@media (max-width: 860px) {
  .about-hero, .team-layout { grid-template-columns: 1fr; gap: 36px; }
  .about-hero { padding-block: 48px 52px; }
  .method-steps, .track-grid, .done-grid, .join-grid { grid-template-columns: 1fr; }
  .method-step + .method-step::before { content: '↓'; left: 26px; top: -21px; }
  .diff-grid { grid-template-columns: 1fr; gap: 28px; }
}
@media (max-width: 640px) {
  .about-page section.band { padding-block: 56px; }
  .showcase { flex-direction: column; align-items: flex-start; gap: 8px; }
  .gap-end { padding: 8px 14px; font-size: 15px; }
  .gap-diagram { gap: 8px; }
  .track, .join-card { padding: 24px 22px; }
}