/* TutorSyntax v28.1 | AI Business book and reader toolkit */
.tsai-hero{background:radial-gradient(circle at 84% 25%,#463e91 0,transparent 34%),linear-gradient(115deg,#0b1e42,#112954 62%,#0a6574);color:#fff;padding:62px 0 74px}
.tsai-hero-grid{display:grid;grid-template-columns:minmax(0,1.35fr) minmax(250px,.8fr);gap:44px;align-items:center}
.tsai-kicker{display:inline-block;letter-spacing:.14em;text-transform:uppercase;font-weight:800;font-size:.79rem;color:#8af4ee}
.tsai-hero h1{font-size:clamp(2.35rem,5vw,4.15rem);line-height:1.08;color:#fff;max-width:800px;margin:16px 0 9px}
.tsai-subtitle{font-size:clamp(1.12rem,2vw,1.48rem);font-weight:650;color:#d6f4fb;margin:0 0 16px}
.tsai-hero .tsai-summary{color:#dfedfa;max-width:650px;font-size:1.09rem}
.tsai-hero .tsai-meta{font-size:.91rem;color:#d0e9f2}
.tsai-actions{display:flex;flex-wrap:wrap;gap:12px;margin:23px 0 0;align-items:center}
.tsai-button{display:inline-block;text-decoration:none;font-weight:780;border-radius:10px;padding:13px 20px;border:2px solid transparent;line-height:1.25;transition:transform .15s ease,background .15s ease}
.tsai-button:hover{transform:translateY(-1px)}
.tsai-button.primary{background:#4be3e6;color:#06233e}
.tsai-button.primary:hover{background:#9bf9f3;color:#06233e}
.tsai-button.secondary{color:#f6fbff;border-color:#bed9ec88;background:#ffffff16}
.tsai-button.secondary:hover{background:#ffffff29;color:#fff}
.tsai-art-wrap{display:flex;flex-direction:column;align-items:center;gap:10px}
.tsai-art{width:min(100%,310px);aspect-ratio:3/4;position:relative;display:flex;flex-direction:column;justify-content:space-between;overflow:hidden;padding:27px 24px;background:radial-gradient(circle at 80% 18%,#367c8a 0,transparent 32%),linear-gradient(145deg,#0c173a,#212356 62%,#114f64);border:1px solid #c3ecf160;box-shadow:20px 22px 35px #040d2d6b;border-radius:5px 13px 13px 5px}
.tsai-art:before{content:'';position:absolute;inset:0 auto 0 8px;width:5px;background:#ffffff28}
.tsai-art:after{content:'';position:absolute;right:-70px;bottom:70px;width:220px;height:220px;border:25px solid #55e9ed3d;border-radius:50%;transform:rotate(35deg)}
.tsai-art .kicker,.tsai-art .author{font-size:.7rem;letter-spacing:.16em;color:#74edee;font-weight:800;position:relative;z-index:1}
.tsai-art .name{font-size:clamp(1.75rem,3vw,2.35rem);font-weight:900;line-height:1.15;letter-spacing:-.035em;color:white;position:relative;z-index:1}
.tsai-art .sub{font-size:.97rem;color:#c6dbf6;font-weight:700;position:relative;z-index:1}
.tsai-art-note{font-size:.78rem;color:#dae9f2;text-align:center;margin:0}
.tsai-crumb{background:#eaf1f9}
.tsai-crumb .container{padding-top:13px;padding-bottom:13px;font-size:.9rem}
.tsai-crumb a{color:#245781}
.tsai-section{padding:53px 0}
.tsai-section.alt{background:#eaf2fa}
.tsai-section h2{font-size:clamp(1.65rem,3vw,2.35rem)}
.tsai-lead{max-width:780px;color:#4d5f79}
.tsai-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:18px;margin-top:24px}
.tsai-card{background:white;color:#15254a;border:1px solid #dce5f2;border-radius:15px;padding:23px;box-shadow:0 8px 18px #1f3d590b}
.tsai-card h3{font-size:1.17rem;margin:0 0 8px;color:#18345c}
.tsai-card p{margin:0;color:#415571}
.tsai-card small{color:#556782}
.tsai-status{display:inline-block;padding:5px 11px;border-radius:100px;font-size:.78rem;font-weight:800;letter-spacing:.035em;background:#d8f6f6;color:#0b5962}
.tsai-section .tsai-actions .secondary{border-color:#234f86;color:#194a76;background:transparent}
.tsai-section .tsai-actions .secondary:hover{background:#e2f3fa}
.tsai-outline{background:#fff;border:1px solid #dce5f2;padding:22px 27px;border-radius:14px}
.tsai-outline li{margin:9px 0}
.tsai-fineprint{font-size:.88rem;color:#4e5c72;max-width:900px}
.tsai-note{background:#f3ebff;border-left:5px solid #7955bb;padding:18px 22px;border-radius:6px;margin:22px 0;color:#273053}
.tsai-banner{margin:0;max-width:100%;padding:35px 0;background:linear-gradient(115deg,#0f244b,#25336b);color:#fff}
.tsai-banner-layout{display:grid;grid-template-columns:1fr auto;gap:24px;align-items:center}
.tsai-banner h2{color:#fff;margin:7px 0 11px;font-size:clamp(1.55rem,3vw,2.15rem)}
.tsai-banner p{color:#dfebf9;margin:0;max-width:720px}
.tsai-banner .tsai-button{white-space:normal;text-align:center}
.tsai-resources-hero{padding-top:55px;padding-bottom:57px}
.tsai-content-link{font-weight:750;color:#175b86}
.tsai-faq details{border:1px solid #d9e6f0;border-radius:10px;background:white;margin-top:10px;padding:13px 18px}
.tsai-faq summary{font-weight:750;cursor:pointer}
.tsai-faq p{margin-bottom:4px}
@media(max-width:820px){.tsai-hero-grid{grid-template-columns:1fr;gap:28px}.tsai-art{max-width:230px}.tsai-grid{grid-template-columns:repeat(2,minmax(0,1fr))}.tsai-banner-layout{grid-template-columns:1fr}}
@media(max-width:580px){.tsai-hero{padding:39px 0 49px}.tsai-grid{grid-template-columns:1fr}.tsai-section{padding:35px 0}.tsai-hero h1{font-size:2.28rem}.tsai-art{max-width:195px}.tsai-button{width:100%;text-align:center}.tsai-actions{align-items:stretch}.tsai-outline{padding:17px 19px}}