/* PeptideWhy 0.6: shared layout and reusable entry/reading components. */
:root{--pw-reading:760px;--pw-space:clamp(32px,5vw,72px);--pw-focus:#a3341c}
body{background:var(--cream);font-size:17px;line-height:1.65}
.pw-shell{max-width:none;margin:0;padding:0 32px 28px;border:0;border-radius:0;box-shadow:none}
.pw-container{width:min(100%,1200px)}
.site-header{padding:24px 0;background:transparent;border-radius:0;border-bottom:1px solid var(--line);gap:24px}
.site-nav{gap:26px}.site-nav>a,.site-nav summary{font-size:15px;text-transform:none;letter-spacing:0;line-height:1.4;padding-block:10px}
.site-nav a[aria-current=page]{text-decoration:underline;text-decoration-thickness:2px;text-underline-offset:7px}
.nav-more__links{min-width:250px;padding:12px;border:1px solid var(--line);box-shadow:0 10px 28px #252b4010}
.nav-more__links a{font-size:15px;min-height:44px;display:flex;align-items:center;padding:10px 12px;line-height:1.4;text-transform:none;letter-spacing:0}
.nav-more__links a:hover{background:var(--paper);border-radius:7px}
.nav-toggle{min-width:72px;min-height:44px;font-size:15px;padding:8px}
.button,.text-link{letter-spacing:0;text-transform:none;font-size:15px;line-height:1.4}
.button{min-height:48px;padding:14px 22px;border-radius:10px}
.button:hover{transform:none}.text-link{display:inline-block;padding-block:10px;font-weight:700;text-underline-offset:5px}
button,input,select,textarea,summary,a{-webkit-tap-highlight-color:transparent}
input[type=search],input[type=email],input[type=number],select{font-size:16px;min-height:48px}
:where(a,button,input,select,textarea,summary):focus-visible{outline:3px solid var(--pw-focus);outline-offset:4px}
.pw-calc__result :where(a,button,summary):focus-visible{outline-color:#ffcfbd}
summary{cursor:pointer}details>summary{list-style:none}details>summary::-webkit-details-marker{display:none}
details>summary:after{content:'+';font-family:'DM Sans',Arial,sans-serif;font-weight:700;margin-left:12px;float:right}
details[open]>summary:after{content:'−'}details.nav-more>summary:after,.definition-entry>summary:after{display:none}
.page-hero{padding:44px 0 28px}.page-hero h1{font-size:clamp(38px,4.9vw,64px);line-height:1.08;max-width:1050px;letter-spacing:-.025em}
.page-hero>p{font-size:18px;line-height:1.65;max-width:790px}.page-content{font-size:17px;line-height:1.75}
.page-content h2,.article-detail-content h2{line-height:1.2;scroll-margin-top:24px}
.page-content p,.article-detail-content p{max-width:var(--pw-reading)}
.breadcrumbs{padding:22px 0 0;font-size:14px;gap:9px;line-height:1.5}
.breadcrumbs a{padding:5px 0}.eyebrow{letter-spacing:.12em;font-size:12px}
.pw-welcome{padding:clamp(36px,5vw,64px) 0 30px;text-align:center}
.pw-welcome h1{font:400 clamp(48px,6.4vw,82px)/1.04 'DM Serif Display',Georgia,serif;letter-spacing:-.035em;color:var(--blue);margin:18px 0}
.pw-welcome__intro{font-size:clamp(18px,2vw,21px);line-height:1.6;max-width:680px;margin:0 auto 34px;color:var(--muted)}
.pw-entry-paths{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:16px;text-align:left}
.pw-entry-path{position:relative;display:flex;flex-direction:column;padding:28px 28px 52px;min-width:0;min-height:222px;border:1px solid #b9bdcb;border-radius:16px;background:#fffdf9;text-decoration:none;transition:border-color .15s,box-shadow .15s}
.pw-entry-path:hover{border-color:var(--blue);box-shadow:0 5px 16px #2639a40d}.pw-entry-path:focus-visible{outline-offset:5px}
.pw-entry-path__eyebrow{font-size:13px;font-weight:600;color:var(--muted);margin-bottom:13px}
.pw-entry-path strong{color:var(--blue);font-size:25px;font-weight:700;line-height:1.25;margin-bottom:10px}
.pw-entry-path>span:not(.pw-entry-path__eyebrow){color:var(--muted);font-size:16px;line-height:1.5;max-width:270px}
.pw-entry-path>b{position:absolute;bottom:18px;right:26px;font-size:24px;color:var(--blue)}
.pw-entry-path--start{background:var(--blue);border-color:var(--blue)}
.pw-entry-path--start strong,.pw-entry-path--start>b{color:white}.pw-entry-path--start>span:not(.pw-entry-path__eyebrow),.pw-entry-path--start .pw-entry-path__eyebrow{color:#f1f2ff}
.pw-welcome__note{font-size:13px;color:var(--muted);margin:20px 0 0}
.pw-home-shortcuts{display:flex;flex-wrap:wrap;align-items:center;justify-content:center;gap:12px 22px;padding:0 0 30px;font-size:15px;line-height:1.6}.pw-home-shortcuts span{color:var(--muted)}.pw-home-shortcuts a{font-weight:700;text-underline-offset:4px}.pw-home-shortcuts a:focus-visible{outline:2px solid var(--blue);outline-offset:5px}@media(max-width:760px){.pw-home-shortcuts{justify-content:flex-start;gap:10px 22px;padding-bottom:26px}.pw-home-shortcuts span{width:100%}.pw-home-shortcuts a{padding-block:5px}}
.pw-home-answer{display:grid;grid-template-columns:.85fr 1.15fr;gap:60px;padding:48px 0;border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.pw-home-answer h2,.pw-section-heading h2{color:var(--blue);font:400 clamp(29px,3.5vw,42px)/1.15 'DM Serif Display',Georgia,serif;letter-spacing:-.02em;margin:12px 0 0}
.pw-home-answer p{margin:0 0 12px;font-size:18px}.pw-home-answer .text-link{padding-bottom:0}
.pw-home-guides,.pw-home-latest{padding-top:48px}.pw-section-heading{display:flex;justify-content:space-between;align-items:end;gap:20px;margin-bottom:20px}.pw-section-heading>.text-link{flex-shrink:0}
.pw-guide-rows{border-top:1px solid var(--line)}.pw-guide-rows>a{display:flex;align-items:center;justify-content:space-between;gap:24px;padding:23px 0;border-bottom:1px solid var(--line);text-decoration:none}
.pw-guide-rows>a:hover strong{text-decoration:underline;text-underline-offset:5px}
.pw-guide-rows strong{display:block;font-size:20px;color:var(--blue);line-height:1.4}.pw-guide-rows small{display:block;font-size:15px;color:var(--muted);margin-top:5px;line-height:1.5}.pw-guide-rows b{font-size:25px;color:var(--blue)}
.pw-home-latest .pw-guide-rows>a{padding-block:20px}.pw-home-latest .pw-guide-rows small{font-size:13px;margin:0 0 6px}
.pw-site-search{margin:36px 0;font-size:15px;max-width:850px}.pw-site-search summary{padding:12px 0;font-weight:600;color:var(--blue)}
.pw-site-search form{margin:15px 0}.pw-site-search label{font-size:15px;font-weight:600;display:block;margin-bottom:8px}.pw-site-search form>div{display:flex;gap:10px}.pw-site-search input{flex:1;min-width:0;border:1px solid #aeb2c2;border-radius:8px;padding:12px;background:#fff}
.pw-signup-disclosure{margin:52px 0 0;border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.pw-signup-disclosure>summary{display:flex;align-items:center;justify-content:space-between;gap:22px;padding:25px 0;color:var(--blue)}
.pw-signup-disclosure>summary:after{display:none}.pw-signup-disclosure summary strong{font-size:20px;display:block}.pw-signup-disclosure summary small{font-size:14px;color:var(--muted);display:block;margin-top:4px}
.pw-signup-disclosure__action{font-weight:700;font-size:15px;white-space:nowrap}.pw-signup-disclosure__action span{margin-left:8px}
.pw-signup-disclosure .pw-signup{margin:0 0 28px;padding:24px;background:var(--paper);border:0;border-radius:12px;gap:32px}
.pw-signup-disclosure .pw-signup h2{font-size:28px}.pw-signup-disclosure .pw-signup p{font-size:15px}.pw-signup__row button{min-height:48px}
.site-footer{display:grid;grid-template-columns:1fr 1.6fr;gap:30px 60px;padding:38px 0 10px;border:0;margin:0}.footer-copy{max-width:340px;line-height:1.65;font-size:14px}
.pw-footer-nav{display:grid;grid-template-columns:1fr 1fr;gap:30px}.pw-footer-nav>div{display:flex;flex-direction:column;align-items:start}.pw-footer-nav strong{font-size:14px;margin:0 0 8px;color:var(--ink)}
.pw-footer-nav a,.pw-footer-legal a{font-size:14px;display:inline-flex;align-items:center;min-height:44px;text-decoration:none;color:var(--blue);line-height:1.4}.pw-footer-nav a:hover,.pw-footer-legal a:hover{text-decoration:underline;text-underline-offset:4px}
.pw-footer-legal{grid-column:1/-1;border-top:1px solid var(--line);padding-top:12px;display:flex;flex-wrap:wrap;gap:4px 24px}
.question-browser .question-cards{display:block}.question-browser .pw-question-disclosure{padding:0;background:transparent;border:0;border-top:1px solid var(--line);border-radius:0;min-height:0}
.pw-question-disclosure>summary{display:flex;justify-content:space-between;gap:20px;padding:19px 0;font-size:18px;font-weight:700;line-height:1.5;color:var(--blue)}
.pw-question-disclosure>summary:after{float:none;flex-shrink:0}.pw-question-disclosure>p{margin:0 0 8px;font-size:17px;max-width:780px}.pw-question-disclosure>a{display:inline-flex;align-items:center;min-height:44px;margin-bottom:12px;font-size:15px!important}
.question-browser .question-topics button{min-height:44px;font-size:14px}.question-browser .question-group>h2{font-size:28px}.question-browser{margin-inline:0;max-width:1000px}.question-browser .question-group{margin-bottom:28px}
.pw-lesson-content{max-width:850px;margin-inline:auto}.pw-lesson-content>.pw-lesson-section{border-bottom:1px solid var(--line);padding:24px 0}.pw-lesson-section h2{font-size:30px;margin:0 0 14px}
.pw-lesson-content details{border:1px solid var(--line);border-radius:12px;padding:0 20px;margin:22px 0;background:#fffdf9}
.pw-lesson-content details summary{min-height:56px;padding:15px 0;font-weight:700;color:var(--blue);font-size:17px}.pw-lesson-content details p{font-size:16px}
.pw-lesson-next{padding:28px!important;background:var(--paper);border-radius:14px;margin:28px 0}.pw-lesson-next p{margin-top:8px}
@media(max-width:900px){.site-nav{gap:18px}.site-nav>a,.site-nav summary{font-size:14px}.pw-entry-path{padding:23px 21px 48px}.pw-entry-path strong{font-size:22px}.pw-home-answer{gap:30px}.site-footer{gap:30px}}
@media(max-width:760px){.pw-shell{padding:0 20px 20px}.site-header{padding:16px 0;position:relative;flex-wrap:wrap;gap:0}.site-header .brand{font-size:26px}.site-header .brand-symbol{width:32px;height:32px}.site-header .nav-toggle{display:block}.site-header .site-nav{display:none;width:100%;flex:0 0 100%;flex-direction:column;align-items:stretch;gap:0;padding-top:16px}.site-header .site-nav.is-open{display:flex}.site-nav>a,.site-nav summary{display:block;font-size:16px;padding:14px 4px;min-height:48px;border-bottom:1px solid var(--line)}.nav-more{width:100%}.nav-more__links{position:static;min-width:0;max-width:none;width:100%;box-shadow:none;margin:8px 0;padding:7px;background:var(--paper)}.nav-more__links a{font-size:15px}.pw-welcome{padding:32px 0 26px;text-align:left}.pw-welcome h1{font-size:clamp(43px,9.8vw,66px);margin:14px 0}.pw-welcome__intro{font-size:18px;margin:0 0 24px;max-width:520px}.pw-desktop-break{display:none}.pw-entry-paths{grid-template-columns:1fr;gap:10px}.pw-entry-path{min-height:0;padding:18px 46px 18px 20px}.pw-entry-path__eyebrow{display:none}.pw-entry-path strong{font-size:21px;margin-bottom:4px}.pw-entry-path>span:not(.pw-entry-path__eyebrow){font-size:15px;max-width:none}.pw-entry-path>b{top:50%;bottom:auto;right:18px;transform:translateY(-50%)}.pw-welcome__note{margin-top:16px}.pw-home-answer{grid-template-columns:1fr;gap:16px;padding:32px 0}.pw-home-answer h2{margin-top:8px}.pw-home-answer p{font-size:17px}.pw-home-guides,.pw-home-latest{padding-top:32px}.pw-section-heading{display:block;margin-bottom:13px}.pw-section-heading .text-link{margin-top:9px}.pw-guide-rows>a{padding:19px 0;gap:16px}.pw-guide-rows strong{font-size:18px}.pw-guide-rows small{font-size:14px}.pw-site-search{margin-block:28px}.pw-site-search form>div{flex-direction:column}.pw-signup-disclosure{margin-top:34px}.pw-signup-disclosure>summary{padding:22px 0;gap:14px}.pw-signup-disclosure summary strong{font-size:18px}.pw-signup-disclosure summary small{font-size:13px}.pw-signup-disclosure__action{font-size:14px}.pw-signup-disclosure .pw-signup{grid-template-columns:1fr;padding:20px;gap:20px}.site-footer{grid-template-columns:1fr;gap:24px;padding-top:28px}.pw-footer-nav{gap:16px}.pw-footer-nav strong{font-size:13px}.pw-footer-nav a{font-size:14px}.pw-footer-legal{gap:4px 20px}.page-hero{padding:30px 0 22px}.page-hero>p{font-size:17px}.page-content{font-size:17px}.question-hero h1{font-size:42px}.pw-question-disclosure>summary{font-size:17px}.pw-lesson-section h2{font-size:28px}.pw-lesson-next{padding:22px!important}}
@media(max-width:360px){.pw-shell{padding-inline:16px}.pw-welcome h1{font-size:42px}.pw-entry-path strong{font-size:20px}.pw-entry-path>span:not(.pw-entry-path__eyebrow){font-size:14px}.site-header .brand{font-size:24px}.pw-signup-disclosure__action{white-space:normal}.pw-footer-nav{grid-template-columns:1fr 1fr}.pw-signup__row{flex-direction:column}}
@media(prefers-reduced-motion:reduce){*,*:before,*:after{scroll-behavior:auto!important;transition:none!important}}