/* About page — homepage-inspired editorial layout using LearnIndex brand tokens. */
.about-page{overflow:hidden}
.about-wrap{width:min(var(--wide-width),calc(100% - 48px));margin-inline:auto}
.about-hero{padding:clamp(72px,9vw,116px) 0;background:linear-gradient(180deg,var(--paper),color-mix(in srgb,var(--blue-soft) 34%,var(--paper)))}
.about-hero__grid{display:grid;grid-template-columns:minmax(0,1.08fr) minmax(360px,.92fr);gap:clamp(48px,7vw,84px);align-items:center}
.about-eyebrow{margin:0 0 14px;font:600 .73rem/1.4 var(--font-mono);letter-spacing:.1em;text-transform:uppercase;color:var(--blue-strong)}
.about-hero h1{font-size:clamp(2.8rem,5.8vw,4.75rem);line-height:1.02;letter-spacing:-.045em;margin:0 0 24px;max-width:760px}
.about-lead{font-size:clamp(1.08rem,1.6vw,1.25rem);line-height:1.65;color:var(--ink-soft);margin:0;max-width:650px}
.about-actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:32px}
.about-button{min-height:48px;display:inline-flex;align-items:center;justify-content:center;padding:12px 21px;border-radius:999px;font-weight:800;text-decoration:none;transition:transform .18s ease,background .18s ease,color .18s ease}
.about-button:hover{transform:translateY(-2px)}
.about-button--primary{background:var(--blue);color:#fff;box-shadow:0 10px 24px color-mix(in srgb,var(--blue) 22%,transparent)}
.about-button--primary:hover{background:var(--blue-strong);color:#fff}
.about-button--secondary{border:1.5px solid var(--line-strong);background:var(--card);color:var(--ink)}
.about-button--secondary:hover{border-color:var(--blue);color:var(--blue-strong)}
.about-summary{position:relative;background:var(--card);border:1px solid var(--line);border-radius:24px;padding:34px;box-shadow:var(--shadow);overflow:hidden}
.about-summary::before{content:"";position:absolute;inset:0 0 auto;height:6px;background:linear-gradient(90deg,var(--rust),var(--blue),var(--green))}
.about-summary__label{margin:0 0 12px;font:600 .72rem/1.4 var(--font-mono);letter-spacing:.08em;text-transform:uppercase;color:var(--ink-faint)}
.about-summary h2{font-size:clamp(1.75rem,3vw,2.35rem);margin-bottom:24px}
.about-summary__list{list-style:none;padding:0;margin:0;display:grid;gap:0}
.about-summary__list li{display:grid;grid-template-columns:36px 1fr;gap:14px;padding:17px 0;border-top:1px solid var(--line);color:var(--ink-soft);line-height:1.55}
.about-summary__list strong{color:var(--ink)}
.about-summary__number{font:600 .72rem/1.7 var(--font-mono);color:var(--rust)}
.about-inside-score{padding:clamp(72px,9vw,110px) 0;background:var(--card);border-block:1px solid var(--line)}
.about-inside-score__grid{display:grid;grid-template-columns:minmax(260px,.42fr) minmax(0,.58fr);gap:clamp(48px,8vw,90px);align-items:start}
.about-inside-score__heading{position:sticky;top:110px}
.about-inside-score__heading h2{font-size:clamp(2rem,4vw,3.15rem);line-height:1.1;margin-bottom:22px}
.about-text-link{font-weight:800;color:var(--blue-strong);text-decoration:none}
.about-text-link span{display:inline-block;margin-left:4px;transition:transform .18s ease}
.about-text-link:hover span{transform:translateX(4px)}
.about-subjects-card{background:var(--paper);border:1px solid var(--line);border-radius:20px;overflow:hidden;box-shadow:var(--shadow)}
.about-subject-row{display:grid;grid-template-columns:48px minmax(0,1fr) auto;gap:16px;align-items:center;padding:22px 24px;border-bottom:1px solid var(--line)}
.about-subject-row:last-child{border-bottom:0}
.about-subject-icon{width:44px;height:44px;display:grid;place-items:center;border-radius:12px;font-weight:800}
.about-subject-icon--math{background:var(--rust-soft);color:var(--rust-strong)}
.about-subject-icon--english{background:var(--blue-soft);color:var(--blue-strong)}
.about-subject-icon--science{background:color-mix(in srgb,var(--ink-faint) 16%,var(--card));color:var(--ink)}
.about-subject-icon--social{background:var(--green-soft);color:var(--green-strong)}
.about-subject-copy h3{font-size:1.08rem;margin:0 0 3px}
.about-subject-copy p{font-size:.88rem;line-height:1.45;color:var(--ink-soft);margin:0}
.about-subject-meta{text-align:right;display:flex;flex-direction:column;align-items:flex-end;gap:5px}
.about-subject-meta strong{font-size:.82rem;color:var(--ink)}
.about-impact{display:inline-block;border-radius:999px;padding:4px 8px;font-size:.68rem;font-weight:800;line-height:1.25;white-space:nowrap}
.about-impact--high{background:var(--rust-soft);color:var(--rust-strong)}
.about-impact--medium{background:var(--blue-soft);color:var(--blue-strong)}
.about-impact--low{background:var(--green-soft);color:var(--green-strong)}
.about-progress{padding:clamp(72px,9vw,110px) 0}
.about-progress__grid{display:grid;grid-template-columns:minmax(0,1.08fr) minmax(300px,.92fr);gap:clamp(48px,8vw,90px);align-items:center}
.about-history-card{background:var(--card);border:1px solid var(--line);border-radius:20px;padding:30px;box-shadow:var(--shadow)}
.about-history-card__header{display:flex;align-items:flex-start;justify-content:space-between;gap:20px}
.about-history-card__header h2{font-size:clamp(1.8rem,3vw,2.3rem);margin:0}
.about-trend{background:var(--green-soft);color:var(--green-strong);font:600 .78rem/1 var(--font-mono);padding:9px 12px;border-radius:999px;white-space:nowrap}
.about-chart{height:270px;margin-top:28px;position:relative;padding-bottom:30px;color:var(--green)}
.about-chart svg{position:relative;width:100%;height:220px;overflow:visible;z-index:2}
.about-chart__area{fill:url(#about-score-area)}
.about-chart__path{fill:none;stroke:currentColor;stroke-width:5;stroke-linecap:round}
.about-chart circle{fill:var(--card);stroke:currentColor;stroke-width:5}
.about-chart__line{position:absolute;left:0;right:0;height:1px;background:var(--line);z-index:1}
.about-chart__line--one{top:20%}.about-chart__line--two{top:48%}.about-chart__line--three{top:76%}
.about-chart__labels{display:flex;justify-content:space-between;color:var(--ink-faint);font:600 .7rem/1 var(--font-mono)}
.about-progress__copy h2{font-size:clamp(2rem,4vw,3.15rem)}
.about-progress__copy>p:not(.about-eyebrow){font-size:1.06rem;color:var(--ink-soft)}
.about-progress-stat{display:flex;align-items:center;gap:16px;margin-top:28px;padding-top:22px;border-top:1px solid var(--line)}
.about-progress-stat strong{font:800 3.5rem/1 var(--font-display);color:var(--green)}
.about-progress-stat span{max-width:155px;color:var(--ink-soft);line-height:1.3}
.about-tools{padding:clamp(72px,9vw,110px) 0;background:color-mix(in srgb,var(--blue-soft) 35%,var(--paper));border-block:1px solid var(--line)}
.about-tools__heading{display:grid;grid-template-columns:1.25fr .75fr;gap:44px;align-items:end;margin-bottom:40px}
.about-tools__heading h2{font-size:clamp(2rem,4vw,3rem);margin:0}
.about-tools__heading>p{color:var(--ink-soft);margin:0}
.about-tool-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}
.about-tool-card{display:flex;flex-direction:column;background:var(--card);border:1px solid var(--line);border-radius:var(--radius);padding:26px;box-shadow:var(--shadow)}
.about-tool-icon{width:48px;height:48px;display:grid;place-items:center;border-radius:12px;background:var(--green-soft);color:var(--green-strong);font-size:1.25rem;font-weight:800;margin-bottom:20px}
.about-tool-icon--blue{background:var(--blue-soft);color:var(--blue-strong)}
.about-tool-icon--rust{background:var(--rust-soft);color:var(--rust-strong)}
.about-tool-kicker{font:600 .69rem/1.4 var(--font-mono);letter-spacing:.04em;text-transform:uppercase;color:var(--ink-faint);margin:0 0 9px}
.about-tool-card h3{font-size:1.3rem;min-height:3.1em;margin:0 0 12px}
.about-access{align-self:flex-start;border-radius:999px;padding:5px 9px;font-size:.7rem;font-weight:800;margin-bottom:19px}
.about-access--free{background:var(--green-soft);color:var(--green-strong)}
.about-access--premium{background:var(--rust-soft);color:var(--rust-strong)}
.about-tool-card>p:not(.about-tool-kicker){color:var(--ink-soft);font-size:.9rem;margin:0 0 22px}
.about-tool-card>p strong{display:block;color:var(--ink);margin-bottom:4px}
.about-tool-card__footer{display:flex;justify-content:space-between;gap:14px;align-items:center;border-top:1px solid var(--line);padding-top:16px;margin-top:auto;font-size:.82rem;color:var(--ink-soft)}
.about-tool-card__footer a{font-weight:800;color:var(--blue-strong);text-decoration:none;white-space:nowrap}
.about-tools__note{max-width:760px;margin:26px auto 0;text-align:center;color:var(--ink-faint);font-size:.85rem}
.about-purpose{padding:clamp(72px,9vw,110px) 0}
.about-purpose__grid{display:grid;grid-template-columns:.84fr 1.16fr;gap:clamp(45px,8vw,100px);align-items:start}
.about-purpose h2{font-size:clamp(2rem,4vw,3.2rem);line-height:1.1;max-width:520px}
.about-purpose__copy{border-left:2px solid var(--green);padding-left:30px}
.about-purpose__copy p{font-size:1.08rem;color:var(--ink-soft);margin:0 0 18px}
.about-system{padding:clamp(72px,9vw,110px) 0;background:var(--card);border-block:1px solid var(--line)}
.about-section-heading{max-width:720px;margin-bottom:42px}
.about-section-heading h2{font-size:clamp(2rem,4vw,3rem)}
.about-section-heading>p:last-child{color:var(--ink-soft);font-size:1.05rem;margin:14px 0 0}
.about-steps{display:grid;grid-template-columns:repeat(4,1fr);border:1px solid var(--line);border-radius:20px;overflow:hidden;background:var(--paper);box-shadow:var(--shadow)}
.about-step{padding:28px 24px;min-height:250px;border-right:1px solid var(--line);position:relative}
.about-step:last-child{border-right:0}
.about-step::before{content:"";position:absolute;left:0;right:0;top:0;height:4px;background:var(--step-color)}
.about-step--green{--step-color:var(--green)}.about-step--blue{--step-color:var(--blue)}.about-step--rust{--step-color:var(--rust)}.about-step--ink{--step-color:var(--ink-faint)}
.about-step__number{font:600 .74rem/1 var(--font-mono);color:var(--step-color)}
.about-step h3{font-size:1.45rem;margin:52px 0 10px}
.about-step p{color:var(--ink-soft);margin:0;font-size:.95rem}
.about-score{padding:clamp(72px,9vw,110px) 0}
.about-score__grid{display:grid;grid-template-columns:1fr 1fr;gap:clamp(48px,8vw,100px);align-items:center}
.about-score__visual{background:var(--ink);color:var(--paper);padding:40px;border-radius:24px;box-shadow:var(--shadow)}
.about-score__visual>p{font:600 .75rem/1.4 var(--font-mono);text-transform:uppercase;letter-spacing:.09em;color:var(--blue);margin:0 0 28px}
.about-score__visual>div:first-of-type{display:flex;align-items:flex-end;gap:16px}
.about-score__visual strong{font:800 clamp(4.5rem,9vw,7rem)/.85 var(--font-display);color:var(--green)}
.about-score__visual span{max-width:130px;color:var(--ink-faint);line-height:1.3;padding-bottom:8px}
.about-score__bar{display:grid!important;grid-template-columns:repeat(4,1fr);gap:3px;margin-top:36px}
.about-score__bar i{height:10px;border-radius:99px;background:var(--ink-faint)}
.about-score__bar i:nth-child(2){background:var(--rust)}.about-score__bar i:nth-child(3){background:var(--blue)}.about-score__bar i:nth-child(4){background:var(--green)}
.about-score__copy h2{font-size:clamp(2rem,4vw,3.2rem)}
.about-score__copy>p:not(.about-eyebrow){font-size:1.06rem;color:var(--ink-soft)}
.about-note{border-left:3px solid var(--rust);padding:15px 18px;background:var(--rust-soft);border-radius:0 10px 10px 0}
.about-note strong{color:var(--ink)}
.about-commitments{padding:clamp(72px,9vw,110px) 0;background:color-mix(in srgb,var(--green-soft) 44%,var(--paper));border-block:1px solid var(--line)}
.about-section-heading--center{text-align:center;margin:0 auto 42px}.about-section-heading--center p{margin-inline:auto}
.about-commitment-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}
.about-commitment-grid article{background:var(--card);border:1px solid var(--line);border-radius:var(--radius);padding:28px;box-shadow:var(--shadow)}
.about-commitment__mark{width:48px;height:48px;display:grid;place-items:center;border-radius:12px;background:var(--blue-soft);color:var(--blue-strong);font-weight:800;margin-bottom:22px}
.about-commitment-grid article:nth-child(2) .about-commitment__mark{background:var(--green-soft);color:var(--green-strong)}
.about-commitment-grid article:nth-child(3) .about-commitment__mark{background:var(--rust-soft);color:var(--rust-strong)}
.about-commitment-grid h3{font-size:1.3rem}.about-commitment-grid p{color:var(--ink-soft);margin-bottom:0}
.about-cta{padding:clamp(72px,9vw,110px) 0}
.about-cta__box{display:flex;justify-content:space-between;align-items:center;gap:36px;background:var(--card);border:1px solid var(--line);border-radius:24px;padding:clamp(30px,5vw,54px);box-shadow:var(--shadow)}
.about-cta__box h2{font-size:clamp(2rem,4vw,3rem)}.about-cta__box p:last-child{color:var(--ink-soft);margin-bottom:0}
.about-cta__box .about-button{flex:none}
@media(max-width:900px){.about-hero__grid,.about-inside-score__grid,.about-progress__grid,.about-purpose__grid,.about-score__grid{grid-template-columns:1fr}.about-hero__grid{gap:42px}.about-inside-score__heading{position:static}.about-tools__heading{grid-template-columns:1fr}.about-tool-grid{grid-template-columns:1fr}.about-tool-card h3{min-height:0}.about-steps{grid-template-columns:repeat(2,1fr)}.about-step:nth-child(2){border-right:0}.about-step:nth-child(-n+2){border-bottom:1px solid var(--line)}.about-commitment-grid{grid-template-columns:1fr}.about-cta__box{align-items:flex-start;flex-direction:column}}
@media(max-width:560px){.about-wrap{width:min(var(--wide-width),calc(100% - 32px))}.about-hero{padding-top:56px}.about-hero h1{font-size:clamp(2.45rem,13vw,3.3rem)}.about-actions{flex-direction:column}.about-button{width:100%}.about-summary{padding:28px 22px}.about-subject-row{grid-template-columns:44px 1fr;padding:18px 16px}.about-subject-meta{grid-column:2;text-align:left;align-items:flex-start}.about-purpose__copy{padding-left:20px}.about-steps{grid-template-columns:1fr}.about-step,.about-step:nth-child(2){border-right:0;border-bottom:1px solid var(--line)}.about-step:last-child{border-bottom:0}.about-score__visual{padding:30px 24px}.about-score__visual>div:first-of-type{display:block}.about-score__visual span{display:block;margin-top:14px}.about-cta__box{padding:28px 22px}}