/* Useful Angles: a cool, open reading room with one folded-paper motif. */
:root{--ice:#edf2f6;--paper:#fff;--ink:#16324a;--muted:#586b7b;--blue:#2457e6;--blue-dark:#1942b7;--lilac:#ddd7ff;--orange:#ef733f;--line:#cfdae2;--display:"Avenir Next","Avenir","Trebuchet MS",sans-serif;--body:"Avenir Next","Avenir","Segoe UI",sans-serif}
*{box-sizing:border-box}html{scroll-behavior:smooth;scroll-padding-top:32px}body{margin:0;background:var(--ice);color:var(--ink);font:16px/1.6 var(--body);-webkit-font-smoothing:antialiased}a{color:inherit;text-underline-offset:4px}button,input,select{font:inherit}button,a,input,select{-webkit-tap-highlight-color:transparent}button{cursor:pointer}button:disabled{cursor:wait;opacity:.65}svg{display:block}::selection{background:var(--lilac);color:var(--ink)}:focus-visible{outline:3px solid var(--blue);outline-offset:4px}h1,h2,h3,p{margin:0}h1,h2,h3{font-family:var(--display);line-height:1.12;letter-spacing:-.045em}h1{font-size:clamp(48px,5.8vw,80px);font-weight:650}h2{font-size:clamp(30px,3vw,42px);font-weight:650}h3{font-size:24px;font-weight:650}p{max-width:74ch}.wrap{width:min(1216px,calc(100% - 96px));margin-inline:auto}.visually-hidden{position:absolute!important;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0}.skip-link{position:absolute;left:16px;top:-90px;z-index:10;padding:12px 18px;background:var(--paper);border:2px solid var(--blue)}.skip-link:focus{top:16px}.site-header{display:flex;align-items:center;justify-content:space-between;min-height:116px;gap:24px}.brand{display:inline-flex;align-items:center;gap:9px;text-decoration:none;font-family:var(--display);font-size:23px;letter-spacing:-1px;font-weight:700;white-space:nowrap}.brand-mark{width:34px;height:38px;flex:none}.site-nav{display:flex;align-items:center;gap:28px}.site-nav a{text-decoration:none;font-size:14px;font-weight:600}.site-nav a:hover{text-decoration:underline}.nav-subscribe{border:1px solid var(--ink);padding:8px 16px;border-radius:5px}.hero{display:grid;grid-template-columns:1.05fr .95fr;gap:clamp(40px,6vw,90px);align-items:center;padding-top:42px;padding-bottom:100px;min-height:660px}.hero h1{max-width:none}.hero-description{margin-top:24px;font-size:19px;line-height:1.6;max-width:45ch;color:#40586c}.subscribe-form{margin-top:32px}.subscribe-form>label{display:block;font-size:14px;font-weight:650;margin-bottom:10px}.email-controls{display:flex;gap:8px}.email-controls input{min-width:0;width:100%;padding:13px 14px;border:1px solid #aebfcd;background:var(--paper);color:var(--ink);border-radius:5px;outline-offset:2px;font-size:14px}.email-controls input::placeholder{color:#6b7c8b}.button{display:inline-flex;align-items:center;justify-content:center;min-height:48px;padding:12px 20px;border:1px solid var(--blue);background:var(--blue);border-radius:5px;color:var(--paper);font-size:14px;line-height:1.5;font-weight:650;text-align:center;text-decoration:none;white-space:nowrap}.button:hover{background:var(--blue-dark);border-color:var(--blue-dark)}.button-outline{background:transparent;color:var(--ink);border-color:#a7b8c5}.button-outline:hover{background:var(--paper);border-color:var(--ink)}.form-note{font-size:11px;margin-top:9px;color:var(--muted)}.form-note a{margin-left:3px}.form-message{font-size:14px;color:var(--ink);font-weight:600}.form-message:not(:empty){margin-top:14px}.form-message[data-state="error"]{color:#a12e29}.form-trap{position:absolute;width:1px;height:1px;overflow:hidden;left:-10000px}.issue-scene{position:relative;padding:16px 0 18px 12px;isolation:isolate}.issue-scene:before{content:"";position:absolute;inset:12px 6px 5px 20px;background:var(--lilac);transform:rotate(-6deg);border-radius:7px;z-index:-1}.issue-preview{padding:29px 29px 23px;background:var(--paper);border-radius:7px;box-shadow:0 9px 25px #1832490c;position:relative}.issue-preview:after{content:"";position:absolute;right:0;top:0;border-style:solid;border-width:0 0 29px 29px;border-color:transparent transparent var(--ice) #d6dfeb;border-radius:0 6px 0 4px}.preview-masthead{display:flex;align-items:center;gap:6px;font-size:13px;font-weight:700;letter-spacing:-.4px}.preview-masthead .brand-mark{width:20px;height:24px}.preview-date{display:block;margin:3px 0 18px;font-size:11px;color:var(--muted)}.preview-theme{font-size:26px;line-height:1.14;margin-bottom:17px;max-width:19ch}.preview-pick{display:grid;grid-template-columns:28px 1fr;gap:10px;padding:13px 0;border-top:1px solid #e2e9ef}.preview-pick .format-icon{margin-top:4px}.preview-pick a{text-decoration:none;font-weight:650;font-size:13px;line-height:1.45;display:block}.preview-pick a:hover{text-decoration:underline}.preview-pick p{font-size:11px;color:var(--muted);margin-top:4px}.preview-start{margin-top:13px;padding:12px 15px;background:#edf0ff;border-left:3px solid var(--blue);font-size:11px;line-height:1.6}.preview-start strong{display:block;font-size:12px;margin-bottom:3px}.preview-caption{display:flex;gap:7px;align-items:center;justify-content:center;font-size:11px;margin-top:19px;color:var(--muted)}.preview-caption span{width:6px;height:6px;background:var(--blue);border-radius:50%}.how-section{background:#dde6ee;padding:45px 0}.how-layout{display:grid;grid-template-columns:.8fr 1.2fr;gap:72px;align-items:center}.how-layout h2{font-size:36px}.how-layout p{font-size:16px;color:#40586c;max-width:65ch}.latest-section{padding-block:80px}.section-heading{display:flex;justify-content:space-between;align-items:flex-end;gap:32px;margin-bottom:32px}.section-heading h2{font-size:34px}.section-heading p{font-size:14px;color:var(--muted);margin-top:10px}.text-link{font-size:14px;font-weight:650;text-decoration:none;white-space:nowrap}.text-link span{display:inline-block;margin-left:7px;font-size:20px;font-weight:400}.text-link:hover{text-decoration:underline}.latest-picks{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:32px}.pick-card{display:flex;flex-direction:column;background:transparent;border-top:2px solid var(--ink);padding-top:21px}.pick-card[data-format="watch"]{border-color:var(--blue)}.pick-card[data-format="listen"]{border-color:#8571b6}.pick-card[data-format="read"]{border-color:#bf6037}.format-label{display:inline-flex;align-items:center;gap:8px;font-size:12px;font-weight:650;color:var(--muted)}.format-icon{width:20px;height:20px;stroke:currentColor;stroke-width:1.6;fill:none;flex:none}.format-label[data-format="watch"]{color:#254cac}.format-label[data-format="listen"]{color:#74568e}.format-label[data-format="read"]{color:#a34827}.pick-card h3{font-size:23px;line-height:1.25;margin:15px 0 8px;letter-spacing:-.65px}.pick-card h3 a{text-decoration:none}.pick-card h3 a:hover{text-decoration:underline}.pick-meta{color:var(--muted);font-size:12px;display:flex;gap:8px;flex-wrap:wrap;align-items:center}.pick-meta .meta-time:before{content:"/";margin-right:8px;color:#9eacb7}.pick-framework{font-size:13px;margin:19px 0 8px;font-weight:700}.pick-why{font-size:14px;color:#40586c}.pick-question{margin-top:18px;font-size:13px;line-height:1.65;padding:14px 15px;background:#e1e8f0;border-radius:3px}.pick-question strong{display:block;font-size:11px;font-weight:700;margin-bottom:4px}.pick-source{margin-top:auto;padding-top:19px;display:inline-flex;align-items:center;gap:8px;font-weight:650;font-size:13px;text-decoration:none;align-self:flex-start}.pick-source:hover{text-decoration:underline}.source-arrow{font-size:18px;font-weight:400}.library-invite{display:grid;grid-template-columns:190px 1fr;gap:40px;align-items:center;margin-top:4px;margin-bottom:80px;border-radius:8px;background:var(--lilac);padding:43px 58px}.library-invite h2{font-size:33px}.library-invite p{font-size:15px;margin:14px 0 22px;max-width:64ch}.library-invite-symbol{position:relative;display:flex;align-items:center;gap:13px;height:134px;padding-left:14px;transform:rotate(-12deg)}.library-invite-symbol span{display:block;width:28px;height:106px;border:3px solid var(--ink);border-radius:3px}.library-invite-symbol span:nth-child(2){background:var(--paper);height:120px}.library-invite-symbol span:nth-child(3){transform:rotate(20deg);margin-left:7px;background:var(--blue);border-color:var(--blue)}.site-footer{border-top:1px solid var(--line);padding:30px 0 36px;display:flex;justify-content:space-between;gap:28px;align-items:center;font-size:12px;color:var(--muted)}.footer-brand{font-size:16px;font-weight:700;color:var(--ink);letter-spacing:-.5px;text-decoration:none}.footer-links{display:flex;gap:24px}.footer-links a{text-decoration:none}.footer-links a:hover{text-decoration:underline}.library-main{padding-top:45px;padding-bottom:90px;min-height:70vh}.library-heading{display:flex;justify-content:space-between;gap:24px;align-items:center;margin-bottom:40px}.library-heading h1{font-size:54px}.library-heading p{font-size:16px;color:var(--muted);margin-top:16px}.library-tools{padding:23px;background:#e0e8ef;border-radius:7px}.search-row{display:flex;justify-content:space-between;gap:20px;align-items:center}.search-control{display:flex;gap:12px;align-items:center;width:min(580px,100%);background:var(--paper);padding:10px 15px;border:1px solid #b9c9d5;border-radius:5px}.search-control svg{width:19px;height:19px;stroke:var(--muted);stroke-width:1.7;flex:none}.search-control input{border:0;background:none;outline:0;min-width:0;width:100%;font-size:14px;color:var(--ink)}.search-control:focus-within{outline:3px solid var(--blue);outline-offset:3px}.sort-control{display:flex;gap:10px;align-items:center;font-size:12px;white-space:nowrap}.sort-control select{border:1px solid #aebfcd;border-radius:4px;color:var(--ink);padding:9px 30px 9px 10px;background:var(--paper);font-size:12px}.filter-row{display:flex;gap:20px;justify-content:space-between;align-items:center;margin-top:18px}.format-filters{display:flex;gap:6px;flex-wrap:wrap}.filter-button{display:flex;align-items:center;gap:7px;padding:8px 13px;border:1px solid transparent;border-radius:5px;font-size:12px;line-height:1.5;background:transparent;color:var(--muted)}.filter-button .format-icon{width:16px;height:16px}.filter-button.is-active{background:var(--ink);color:var(--paper);font-weight:650}.filter-button:not(.is-active):hover{background:#d1dce5;color:var(--ink)}.hide-explored{display:flex;gap:8px;align-items:center;font-size:12px;cursor:pointer}.hide-explored input,.explored-checkbox{accent-color:var(--blue);width:17px;height:17px;flex:none;cursor:pointer}.library-meta{display:flex;justify-content:space-between;gap:20px;margin:23px 0 15px;color:var(--muted);font-size:11px}.inline-button{border:0;background:none;color:inherit;padding:0;text-decoration:underline;text-underline-offset:3px;font-size:inherit}.table-scroll{width:100%}.recommendation-table{border-collapse:collapse;width:100%;text-align:left;table-layout:fixed;font-size:13px}.recommendation-table th{color:var(--muted);font-size:11px;font-weight:500;padding:0 12px 13px;border-bottom:1px solid #b8c8d4}.recommendation-table th:first-child{width:38px;padding-left:8px}.recommendation-table th:nth-child(2){width:91px}.recommendation-table th:nth-child(3){width:92px}.recommendation-table th:nth-child(4){width:33%}.recommendation-table th:nth-child(5){width:20%}.recommendation-table th:nth-child(6){width:78px}.recommendation-table th:last-child{width:80px;padding-right:0}.recommendation-row td{padding:19px 12px;vertical-align:top;border-bottom:1px solid var(--line)}.recommendation-row td:first-child{padding-left:8px}.recommendation-row td:last-child{padding-right:0;text-align:right}.recommendation-row .format-label{font-size:11px;gap:6px}.recommendation-row .format-icon{width:15px;height:15px}.date-cell{font-size:11px;line-height:1.55;color:var(--muted);font-variant-numeric:tabular-nums}.date-cell time{display:block;max-width:63px}.title-button{display:flex;width:100%;gap:8px;align-items:flex-start;border:0;padding:0;background:none;text-align:left;color:var(--ink);font-size:14px;line-height:1.45;font-weight:650}.title-button:hover{text-decoration:underline;text-underline-offset:3px}.title-button .chevron{width:13px;height:13px;flex:none;margin-top:4px;stroke:var(--muted);stroke-width:1.5;fill:none;transition:transform .15s}.title-button[aria-expanded="true"] .chevron{transform:rotate(180deg)}.row-creator{font-size:11px;color:var(--muted);margin-top:4px;padding-left:21px}.framework-cell{font-size:12px;line-height:1.6}.time-cell{font-size:11px;color:var(--muted)}.open-source{display:inline-flex;gap:4px;align-items:center;font-size:11px;text-decoration:none;font-weight:650;white-space:nowrap;border:1px solid #b5c5d0;padding:4px 7px;border-radius:4px}.explored-control{display:grid;place-items:center;width:28px;min-height:30px;margin-top:-3px}.open-source:hover{background:var(--paper);border-color:var(--ink)}.recommendation-row.is-explored .title-button{color:#71808d}.detail-row>td{padding:22px 24px 25px 163px;background:#e1e8f0;border-bottom:1px solid var(--line)}.detail-grid{display:grid;grid-template-columns:1fr 1fr;gap:28px}.detail-grid h3{font-family:var(--body);font-size:12px;letter-spacing:0;margin-bottom:7px}.detail-grid p{font-size:13px;color:#40586c;line-height:1.7}.detail-question{grid-column:1/-1;padding-top:13px;border-top:1px solid #c7d4df}.detail-question strong{font-size:12px}.detail-question p{margin-top:5px;max-width:88ch}.empty-state{text-align:center;padding:64px 20px}.empty-state h2{font-size:28px}.empty-state p{margin:16px auto 23px;font-size:14px;color:var(--muted)}[hidden]{display:none!important}.simple-main{min-height:70vh;display:flex;align-items:center;justify-content:center;padding-block:65px}.confirmation-panel{max-width:570px;background:var(--paper);padding:44px;text-align:center;border-radius:7px}.confirmation-symbol{display:flex;justify-content:center;margin-bottom:28px}.confirmation-symbol .brand-mark{width:45px;height:52px}.confirmation-panel h1{font-size:41px}.confirmation-panel>p{margin:20px 0;font-size:16px;color:var(--muted)}.confirmation-panel>.text-link{display:block;margin-top:25px}.confirmation-panel .form-message{color:var(--ink)}.prose-main{max-width:760px;padding-block:60px 90px}.prose-main h1{font-size:52px;max-width:15ch}.prose-main .lede{font-size:20px;margin-top:25px}.prose-main h2{font-size:26px;margin-top:36px;margin-bottom:12px}.prose-main p{font-size:15px;line-height:1.8;color:#40586c}.prose-main .privacy-updated{font-size:12px;margin-top:42px;margin-bottom:20px}.notice{font-size:14px;margin-block:20px}
@media(min-width:1450px){.hero{gap:100px}.hero-description{max-width:43ch}}
@media(max-width:1100px){.wrap{width:calc(100% - 64px)}.hero{gap:36px;padding-block:40px 80px;min-height:unset}.hero h1{font-size:64px}.hero-description{font-size:17px}.email-controls{flex-wrap:wrap}.email-controls input{width:100%;flex:1 1 200px}.email-controls .button{flex:1 1 180px}.issue-preview{padding:25px 23px 20px}.preview-theme{font-size:24px}.how-layout{gap:40px}.latest-picks{gap:24px}.pick-card h3{font-size:21px}.recommendation-table th:nth-child(4){width:29%}.recommendation-table th:nth-child(5){width:18%}.detail-row>td{padding-left:50px}}
@media(max-width:800px){.wrap{width:calc(100% - 40px)}.site-header{min-height:88px}.brand{font-size:21px}.site-nav{gap:18px}.site-nav a{font-size:12px}.nav-subscribe{padding:7px 12px}.hero{grid-template-columns:1fr;gap:47px;padding-top:28px;padding-bottom:57px}.hero h1{font-size:clamp(56px,11vw,79px)}.hero-description{font-size:18px;max-width:49ch}.hero-copy{max-width:620px}.email-controls{flex-wrap:nowrap}.email-controls input{flex:1 1 auto}.email-controls .button{flex:none}.issue-scene{max-width:475px;width:calc(100% - 25px);margin-inline:auto;padding:0 0 12px}.issue-scene:before{inset:5px 6px 0 9px;transform:rotate(-4deg)}.issue-preview{padding:28px}.preview-theme{font-size:28px;max-width:23ch}.preview-pick a{font-size:14px}.preview-pick p,.preview-date,.preview-start{font-size:12px}.preview-start strong{font-size:13px}.preview-caption{margin-top:19px}.how-section{padding-block:35px}.how-layout{grid-template-columns:1fr;gap:16px}.how-layout h2{font-size:32px}.how-layout p{font-size:15px}.latest-section{padding-block:54px}.section-heading{align-items:flex-start;flex-direction:column;gap:17px;margin-bottom:27px}.section-heading h2{font-size:31px}.section-heading p{margin-top:8px}.latest-picks{grid-template-columns:1fr;gap:31px}.pick-card{padding-top:18px}.pick-card h3{font-size:26px;max-width:40ch;margin-top:12px}.pick-framework{margin-top:15px}.pick-why{font-size:15px;max-width:65ch}.pick-question{margin-top:15px;max-width:70ch}.pick-source{padding-top:15px}.library-invite{grid-template-columns:1fr;gap:18px;padding:28px;margin-bottom:55px}.library-invite-symbol{height:65px;transform:rotate(-12deg) scale(.55);transform-origin:left center;margin-left:3px;width:145px;margin-bottom:10px}.library-invite h2{font-size:31px}.library-invite p{font-size:14px}.site-footer{align-items:flex-start;flex-wrap:wrap;gap:16px;padding-top:23px;font-size:11px}.site-footer>p{order:3;flex:1 0 100%}.footer-links{gap:18px;margin-left:auto}.library-main{padding-top:32px}.library-heading{align-items:flex-start;flex-direction:column;gap:20px;margin-bottom:28px}.library-heading h1{font-size:48px}.library-heading p{font-size:15px;margin-top:14px;max-width:43ch}.library-tools{padding:17px}.search-row{flex-wrap:wrap;gap:15px}.search-control{width:100%}.sort-control{width:100%;justify-content:space-between}.sort-control select{padding-block:7px}.filter-row{flex-wrap:wrap;gap:14px;margin-top:14px}.format-filters{gap:3px}.filter-button{padding:8px 10px;min-height:44px}.hide-explored{width:100%;justify-content:flex-end}.library-meta{flex-direction:column;gap:3px;margin-top:20px}.recommendation-table{display:block}.recommendation-table thead{display:none}.recommendation-table tbody{display:block}.recommendation-row{display:grid;grid-template-columns:36px 1fr auto;gap:0 8px;padding:21px 0;border-top:1px solid var(--line)}.recommendation-row td{display:block;border:0;padding:0}.recommendation-row td:first-child{grid-column:1;grid-row:1/5;padding-left:1px}.recommendation-row td:nth-child(2){grid-column:2;grid-row:2;margin-top:5px}.date-cell time{max-width:unset;display:inline}.date-cell:before{content:"Added ";font-size:11px}.recommendation-row td:nth-child(3){grid-column:2;grid-row:1;margin-bottom:10px}.recommendation-row td:nth-child(4){grid-column:2/4;grid-row:3;margin-top:10px}.recommendation-row td:nth-child(5){grid-column:2/4;grid-row:4;margin-top:10px}.framework-cell:before{content:"Framework: ";color:var(--muted)}.recommendation-row td:nth-child(6){grid-column:3;grid-row:2;text-align:right;margin-top:5px}.recommendation-row td:last-child{grid-column:3;grid-row:1;padding:0}.title-button{font-size:16px}.title-button .chevron{margin-top:6px}.row-creator{font-size:12px;margin-top:5px}.recommendation-row .format-label{font-size:12px}.recommendation-row .format-icon{width:16px;height:16px}.open-source{font-size:11px;padding:6px 10px;min-height:40px}.explored-control{width:36px;min-height:44px;margin-top:-2px}.detail-row{display:block;margin-bottom:22px}.detail-row>td{display:block;padding:22px;border:0;border-radius:5px}.detail-grid{grid-template-columns:1fr;gap:20px}.detail-question{grid-column:1}.simple-main{padding-block:34px 65px}.confirmation-panel{padding:35px 25px}.confirmation-panel h1{font-size:37px}.prose-main{padding-block:35px 65px}.prose-main h1{font-size:44px}}
@media(max-width:430px){.brand{font-size:19px;gap:5px}.brand-mark{width:30px;height:35px}.site-nav{gap:13px}.nav-subscribe{padding:6px 10px}.hero h1{font-size:clamp(42px,13.1vw,52px)}.hero-description{font-size:17px}.email-controls{flex-direction:column}.email-controls input{min-height:49px;flex:auto}.email-controls .button{min-height:49px}.subscribe-form{margin-top:27px}.subscribe-form>label{font-size:13px}.form-note{font-size:10px}.issue-preview{padding:25px 22px 22px}.preview-theme{font-size:25px}.section-heading h2{font-size:29px}.format-filters{width:100%;justify-content:space-between}.filter-button{padding:8px 7px;font-size:11px}.filter-button .format-icon{width:14px;height:14px}.library-tools{padding:14px}.library-heading h1{font-size:44px}}
@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}*,*:before,*:after{transition:none!important}}