/* Stella Nova Academic Model v2.8.0 */
.academic-model-page{--model-bg:#061326;--model-panel:#0a1d38;--model-line:rgba(126,177,235,.22);--model-text:#f4f8ff;--model-muted:#acbbcd;background:var(--model-bg);color:var(--model-text)}
.academic-model-page main{background:radial-gradient(circle at 88% 25%,rgba(28,82,155,.2),transparent 30%),linear-gradient(180deg,#061326,#07172c)}.academic-model-page p{color:var(--model-muted)}
.model-shell{width:min(1360px,calc(100% - clamp(2rem,6vw,6rem)));margin-inline:auto}.model-kicker{margin:0 0 .7rem;color:#72caff!important;font-size:.72rem;font-weight:800;letter-spacing:.17em;text-transform:uppercase}.model-section{padding-block:clamp(4rem,7vw,7rem);border-bottom:1px solid rgba(130,179,235,.1)}
.model-hero{position:relative;min-height:720px;padding-top:var(--header-h);display:flex;align-items:center;overflow:hidden;border-bottom:1px solid var(--model-line)}.model-hero-media{position:absolute;inset:0;background-image:url('../images/academic-model/academic-model-hero.webp');background-size:cover;background-position:center}.model-hero-media::after{content:"";position:absolute;inset:0;background:linear-gradient(90deg,rgba(4,14,31,1) 0%,rgba(4,14,31,.985) 42%,rgba(4,14,31,.78) 57%,rgba(4,14,31,.35) 76%,rgba(4,14,31,.5)),linear-gradient(0deg,#061326 0%,transparent 32%)}.model-hero-inner{position:relative;z-index:2;display:grid;grid-template-columns:1fr 355px;gap:3rem;align-items:center;padding-block:6rem 4rem}.model-breadcrumb{grid-column:1/-1;display:flex;gap:.55rem;color:#8db8e6;font-size:.72rem}.model-breadcrumb a{color:#9dccff;text-decoration:none}.model-hero-copy{max-width:650px}.model-hero h1{margin:0 0 1rem;font-size:clamp(3.7rem,7vw,7rem);line-height:.95;letter-spacing:-.055em;color:#fff}.model-hero-copy>p:not(.model-kicker){font-size:1.15rem;line-height:1.75;color:#dce7f3}.model-button{display:inline-flex;align-items:center;gap:.7rem;min-height:48px;margin-top:1.5rem;padding:.82rem 1.2rem;border-radius:8px;background:linear-gradient(135deg,#2563eb,#314edc);color:#fff;text-decoration:none;font-weight:800;box-shadow:0 14px 32px rgba(37,99,235,.28)}
.model-hero-panels{display:grid;gap:.75rem}.model-hero-panels article{display:grid;grid-template-columns:34px 1fr auto;gap:.7rem;padding:1rem;border:1px solid rgba(139,188,244,.3);border-radius:10px;background:rgba(5,20,43,.72);backdrop-filter:blur(13px);box-shadow:0 14px 35px rgba(0,0,0,.24)}.model-hero-panels article>span{display:grid;place-items:center;width:32px;height:32px;border-radius:8px;background:#10376d;color:#8ed3ff}.model-hero-panels svg{width:18px;height:18px}.model-hero-panels small{display:block;color:#8fc8f5;font-size:.62rem;text-transform:uppercase;letter-spacing:.07em}.model-hero-panels strong{display:block;color:#fff;font-size:.84rem;line-height:1.45}.model-hero-panels ul{margin:.35rem 0 0;padding:0;list-style:none;color:#dce8f5;font-size:.72rem}.model-hero-panels li::before{content:"✓";margin-right:.4rem;color:#6fc7ff}.model-hero-panels b{display:grid;place-items:center;width:64px;height:64px;border:3px solid #2786ff;border-radius:50%;color:#fff;font-size:1rem}.model-hero-panels b small{text-transform:none;letter-spacing:0;color:#75bdff;font-size:.48rem}
.model-overview-grid{display:grid;grid-template-columns:.85fr 1.15fr;gap:clamp(3rem,8vw,8rem);align-items:start}.model-overview h2,.model-section>div>h2,.model-section-heading h2,.model-closing h2{margin:0;color:#fff;font-size:clamp(2.15rem,3.4vw,3.25rem);letter-spacing:-.04em}.model-overview-grid>p{font-size:1.1rem;line-height:1.85}
.model-principle-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:1rem}.model-principle-grid article{position:relative;min-height:250px;padding:1.25rem;overflow:hidden;border:1px solid var(--model-line);border-radius:12px;background-image:var(--principle-image);background-size:cover;background-position:center}.model-principle-shade{position:absolute;inset:0;background:linear-gradient(90deg,rgba(5,18,39,.98),rgba(5,18,39,.74)),linear-gradient(0deg,rgba(5,18,39,.98),transparent)}.model-principle-grid article>span,.model-principle-grid h3,.model-principle-grid p{position:relative;z-index:1}.model-principle-grid article>span{display:grid;place-items:center;width:42px;height:42px;border:1px solid rgba(82,155,255,.6);border-radius:9px;background:#0e3a76;color:#9ddcff}.model-principle-grid svg{width:22px;height:22px}.model-principle-grid h3{margin:1.6rem 0 .5rem;color:#fff;font-size:1.2rem}.model-principle-grid p{margin:0;font-size:.83rem;line-height:1.55;color:#d2deeb!important}
.model-section-heading{display:flex;align-items:end;justify-content:space-between;gap:2rem;margin-bottom:1.4rem}.model-demo-toggle{padding:.65rem 1rem;border:1px solid rgba(114,191,255,.5);border-radius:7px;background:rgba(9,32,62,.75);color:#a9dcff;font-weight:700}.model-workbench{padding:1rem;border:1px solid var(--model-line);border-radius:14px;background:linear-gradient(145deg,rgba(11,36,68,.9),rgba(5,18,37,.96));box-shadow:0 28px 70px rgba(0,0,0,.22)}.model-step-tabs{display:grid;grid-template-columns:repeat(6,1fr);gap:.55rem;margin-bottom:.8rem}.model-step-tabs button{display:flex;align-items:center;gap:.45rem;padding:.5rem;border:0;border-radius:999px;background:rgba(20,55,98,.65);color:#c8d9ec;font-size:.7rem}.model-step-tabs button span{display:grid;place-items:center;width:24px;height:24px;border-radius:50%;background:#1b58a7;color:#fff}.model-step-tabs button[aria-selected="true"]{background:#235bb2;color:#fff;box-shadow:0 0 0 2px rgba(93,164,255,.3)}
.model-stage-grid{display:grid;grid-template-columns:repeat(6,1fr);gap:.65rem}.model-stage-card{min-width:0;display:flex;flex-direction:column;min-height:315px;padding:.9rem;border:1px solid rgba(124,178,237,.22);border-radius:9px;background:rgba(6,24,48,.78);transition:.2s ease}.model-stage-card.is-active{border-color:#4c98ff;background:rgba(12,45,84,.96);box-shadow:0 0 0 2px rgba(76,152,255,.15)}.model-stage-icon{display:grid;place-items:center;width:35px;height:35px;border-radius:8px;background:#0f3971;color:#8dd4ff}.model-stage-icon svg{width:20px;height:20px}.model-stage-label{margin:.8rem 0 .25rem;color:#82c8ff!important;font-size:.62rem;text-transform:uppercase;letter-spacing:.08em}.model-stage-card h3{margin:0 0 .65rem;color:#fff;font-size:.95rem;line-height:1.4}.model-stage-card>p:not(.model-stage-label){font-size:.72rem;line-height:1.5}.model-confidence{margin-top:auto}.model-confidence span,.model-confidence strong{display:inline-block;color:#a9bfd6;font-size:.62rem}.model-confidence strong{float:right;color:#fff}.model-confidence i{display:block;height:4px;margin-top:.35rem;border-radius:999px;background:linear-gradient(90deg,#3191ff var(--confidence),rgba(255,255,255,.1) var(--confidence))}.model-feedback-actions{display:grid;gap:.4rem;margin-top:auto}.model-feedback-actions button{padding:.45rem;border:1px solid rgba(96,165,250,.35);border-radius:6px;background:#0b2d5b;color:#dcebff;font-size:.65rem}.model-better-question{display:flex;align-items:center;gap:.8rem;margin-top:.7rem;padding:.75rem;border:1px solid rgba(96,165,250,.28);border-radius:8px;background:#092650}.model-better-question>span{color:#8ed4ff}.model-better-question svg{width:22px}.model-better-question small{display:block;color:#7acaff}.model-better-question strong{color:#fff;font-size:.82rem}
.model-architecture-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:1rem;margin-top:2rem}.model-architecture-grid article{position:relative;min-height:245px;padding:1.3rem;border:1px solid var(--model-line);border-radius:12px;background:rgba(8,27,52,.78)}.model-architecture-grid article:not(:last-child)::after{content:"";position:absolute;top:39px;left:70px;width:calc(100% - 45px);height:2px;background:linear-gradient(90deg,#398eff,#77caff)}.model-architecture-grid article>span{position:relative;z-index:1;display:grid;place-items:center;width:52px;height:52px;border-radius:50%;background:#0f3d79;color:#9ddcff}.model-architecture-grid svg{width:26px;height:26px}.model-architecture-grid b{display:block;margin-top:1rem;color:#77caff}.model-architecture-grid h3{margin:.25rem 0 .5rem;color:#fff}.model-architecture-grid p{font-size:.8rem;line-height:1.55}
.model-practice-grid{display:grid;grid-template-columns:repeat(5,1fr);gap:.85rem}.model-practice-grid article{overflow:hidden;border:1px solid var(--model-line);border-radius:10px;background:#081c36}.model-practice-grid img{width:100%;height:155px;object-fit:cover}.model-practice-grid h3{margin:1rem 1rem .3rem;color:#fff;font-size:1rem}.model-practice-grid p{margin:0 1rem 1rem;font-size:.75rem;line-height:1.5}.model-closing{padding-block:4rem;background:radial-gradient(circle at 80% 100%,rgba(39,112,218,.4),transparent 35%),linear-gradient(100deg,#061326,#0a2446)}.model-closing>.model-shell{display:flex;align-items:center;justify-content:space-between;gap:2rem}.model-closing h2{font-size:clamp(2.6rem,5vw,5rem)}
@media(max-width:820px){.model-hero-inner{grid-template-columns:1fr 300px}.model-principle-grid{grid-template-columns:repeat(2,1fr)}.model-stage-grid{grid-template-columns:repeat(3,1fr)}.model-step-tabs{display:flex;overflow-x:auto}.model-step-tabs button{min-width:150px}.model-practice-grid{grid-template-columns:repeat(3,1fr)}}
@media(max-width:760px){.model-shell{width:min(100% - 2rem,680px)}.model-hero{min-height:850px;align-items:end}.model-hero-media{background-position:58% center}.model-hero-inner{display:block;padding-block:5rem 3rem}.model-breadcrumb{margin-bottom:2.5rem}.model-hero h1{font-size:clamp(3.4rem,16vw,5.2rem)}.model-hero-panels{margin-top:2rem}.model-overview-grid{grid-template-columns:1fr;gap:1.5rem}.model-principle-grid,.model-architecture-grid,.model-practice-grid{grid-template-columns:1fr}.model-section-heading{display:block}.model-demo-toggle{margin-top:1rem}.model-stage-grid{display:flex;overflow-x:auto;scroll-snap-type:x mandatory}.model-stage-card{min-width:265px;scroll-snap-align:start}.model-architecture-grid article:not(:last-child)::after{display:none}.model-closing>.model-shell{display:block}.model-practice-grid img{height:220px}}