.entry-page,.auth-page{border-radius:var(--radius-xl);background:var(--color-surface-raised);width:min(100%,1180px);min-height:calc(100svh - clamp(20px,3vw,48px));box-shadow:var(--shadow-lg);border:1px solid #d6d1c8;margin-inline:auto;position:relative;overflow:hidden}.entry-page{grid-template-columns:minmax(0,1.02fr) minmax(380px,.98fr);display:grid}.entry-copy{z-index:2;background:linear-gradient(#fffdf9e6, #fffdf9e6), repeating-linear-gradient(0deg, transparent 0, transparent 31px, #082b560d 32px), repeating-linear-gradient(90deg, transparent 0, transparent 31px, #082b560a 32px), var(--color-canvas);flex-direction:column;justify-content:space-between;min-width:0;padding:clamp(2rem,5vw,4.75rem);display:flex;position:relative}.entry-copy:after{z-index:-1;content:"";background:#f6f1e7bf;border-bottom:1px solid #082b5614;border-radius:48%;width:62%;height:30%;position:absolute;top:-12%;left:-18%;transform:rotate(-5deg)}.entry-intro{max-width:650px;margin-block:clamp(2.5rem,8vh,6.5rem)}.entry-intro h1{max-width:620px;color:var(--color-heading);font-size:var(--text-display);letter-spacing:-.05em;margin:.8rem 0 1.25rem;line-height:1.04}.entry-intro>p:last-child{max-width:570px;color:var(--color-text-secondary);font-size:clamp(1rem,1.4vw,1.12rem)}.entry-actions{grid-template-columns:minmax(0,1.42fr) minmax(170px,.8fr);gap:.75rem;display:grid}.entry-actions a{border-radius:var(--radius-md);min-height:108px;transition:border-color var(--transition-base), box-shadow var(--transition-base), transform var(--transition-base);flex-direction:column;justify-content:center;padding:1.15rem 1.3rem;text-decoration:none;display:flex}.entry-actions a>span,.entry-actions a>small{font-size:var(--text-xs);font-weight:750}.entry-actions a>strong{font-size:var(--text-lg);margin-top:.25rem}.entry-primary{border:1px solid var(--color-primary);background:var(--color-primary);color:#fff;box-shadow:0 12px 28px #082b562e}.entry-primary small{color:#ffffffc2;margin-top:.2rem}.entry-secondary{border:1px solid var(--color-border-strong);background:var(--color-surface-raised);color:var(--color-heading)}.entry-actions a:hover{transform:translateY(-2px)}.entry-primary:hover{border-color:var(--color-accent-hover);background:var(--color-accent-hover);box-shadow:0 15px 32px #082b5633}.entry-secondary:hover{border-color:var(--color-accent);background:var(--color-accent-soft)}.entry-footnote{color:var(--color-text-muted)}.entry-visual{background:radial-gradient(circle at 75% 25%, #0a979229, transparent 28%), linear-gradient(#faf7efe6, #faf7efe6), repeating-linear-gradient(0deg, transparent 0, transparent 31px, #082b560f 32px), var(--color-canvas);place-items:center;min-width:0;padding:clamp(2.5rem,6vw,5.5rem);display:grid;position:relative;overflow:hidden}.entry-visual:before,.auth-story:before{aspect-ratio:1;content:"";pointer-events:none;border:1px solid #0a979233;border-radius:50%;width:min(34vw,430px);position:absolute}.entry-image-frame{z-index:1;border:7px solid var(--color-surface-raised);background:var(--color-surface-raised);width:min(100%,520px);box-shadow:var(--shadow-md);border-radius:50%;transform:none}.entry-visual-note{border-radius:var(--radius-md);background:var(--color-surface-raised);box-shadow:var(--shadow-sm);color:var(--color-heading);border:1px solid #cbdad8;bottom:clamp(1.5rem,4vw,3.5rem);right:clamp(1.5rem,4vw,3.5rem)}.entry-visual-note>span{background:var(--color-accent-soft);color:var(--color-accent-hover);border-color:#add2cd}.entry-visual-note small{color:var(--color-text-muted)}.auth-page{grid-template-columns:minmax(0,1.04fr) minmax(380px,.96fr);max-width:1080px;display:grid}.auth-story{background:linear-gradient(#f9f5ece8, #f9f5ece8), repeating-linear-gradient(0deg, transparent 0, transparent 31px, #082b560d 32px), repeating-linear-gradient(90deg, transparent 0, transparent 31px, #082b560a 32px), var(--color-canvas);min-width:0;color:var(--color-text);flex-direction:column;justify-content:space-between;padding:clamp(2.25rem,5vw,4rem);display:flex;position:relative;overflow:hidden}.auth-page-student .auth-story,.auth-page-teacher .auth-story,.auth-page-password .auth-story{background-color:var(--color-canvas);background-image:linear-gradient(#f9f5ece8,#f9f5ece8),repeating-linear-gradient(0deg,#0000 0 31px,#082b560d 32px),repeating-linear-gradient(90deg,#0000 0 31px,#082b560a 32px)}.auth-story:before{top:12%;right:-18%}.auth-story .brand-lockup,.auth-story .brand-lockup-copy>strong{color:var(--color-heading)}.auth-story .brand-lockup-copy>span{color:var(--color-accent-hover)}.auth-story .brand-lockup-copy>small{color:var(--color-text-muted)}.auth-story-copy{z-index:2;max-width:520px;margin-block:2.5rem 14rem;position:relative}.auth-story-copy .eyebrow{color:var(--color-accent-hover)}.auth-story h1{max-width:560px;color:var(--color-heading);margin-top:1rem;font-size:clamp(2.2rem,5vw,4rem)}.auth-product-copy{max-width:520px;color:var(--color-text-secondary);margin-top:1.15rem}.auth-illustration{width:min(68%,400px);bottom:-5rem;right:-1.5rem}.auth-illustration img{border:6px solid var(--color-surface-raised);box-shadow:var(--shadow-md);border-radius:50%;transform:none}.auth-illustration .molecule-orbit,.entry-visual .molecule-orbit{border-color:#0a979233}.auth-illustration .molecule-orbit:before,.auth-illustration .molecule-orbit:after,.entry-visual .molecule-orbit:before,.entry-visual .molecule-orbit:after{border-color:#082b5621}.auth-illustration .molecule-orbit span,.entry-visual .molecule-orbit span{background:var(--color-accent);box-shadow:none}.auth-panel{background:var(--color-surface-raised);flex-direction:column;justify-content:center;min-width:0;padding:clamp(2rem,6vw,4.5rem);display:flex}.auth-panel-heading{max-width:440px}.auth-panel-heading h2{color:var(--color-heading);margin:.55rem 0 .75rem;font-size:clamp(1.75rem,4vw,2.4rem)}.auth-form{gap:.55rem;width:100%;max-width:440px;margin-top:1.8rem;display:grid}.auth-form label{color:var(--color-heading);font-size:var(--text-sm);margin-top:.45rem;font-weight:750}.auth-form input{min-height:var(--control-height-lg);padding-inline:.9rem}.auth-form button[type=submit]{min-height:var(--control-height-lg);border-color:var(--color-primary);background:var(--color-primary);margin-top:.25rem}.auth-form button[type=submit]:hover:not(:disabled){border-color:var(--color-accent-hover);background:var(--color-accent-hover)}.field-label-row{align-items:baseline}.field-label-row span{color:var(--color-text-muted);font-size:var(--text-xs)}.form-message{min-height:1.75rem}.form-message p{color:var(--color-danger)}.signed-in-as{border-radius:var(--radius-sm);background:var(--color-accent-soft);color:var(--color-heading);border:1px solid #cbdad8}.auth-route-links a{min-height:var(--control-height);color:var(--color-primary)}@media (max-width:960px){.entry-page{grid-template-columns:minmax(0,1fr) minmax(320px,.78fr)}.entry-actions{grid-template-columns:1fr}.entry-actions a{min-height:88px}.auth-page{grid-template-columns:1fr;width:min(100%,720px)}.auth-story{min-height:330px;padding:2rem 2.25rem}.auth-story-copy{max-width:calc(100% - 190px);margin-block:2.5rem 0}.auth-story h1{font-size:clamp(2rem,6vw,3.15rem)}.auth-illustration{width:260px;bottom:-3.25rem;right:-.75rem}.auth-panel{padding:2.5rem 2.25rem}}@media (max-width:720px){.entry-page,.auth-page{min-height:100dvh;box-shadow:none;border:0;border-radius:0}.entry-page{flex-direction:column;display:flex}.entry-copy{padding:1.5rem max(1.25rem, env(safe-area-inset-right)) max(1.5rem, env(safe-area-inset-bottom)) max(1.25rem, env(safe-area-inset-left));flex:auto}.entry-intro{margin-block:2.5rem}.entry-intro h1{font-size:clamp(2.35rem,12vw,3.6rem)}.entry-visual{order:-1;min-height:240px;padding:1.5rem}.entry-image-frame{border-width:4px;width:min(64vw,280px)}.entry-visual-note{max-width:230px;bottom:1rem;right:1rem}.auth-story{min-height:230px;padding:max(1.25rem, env(safe-area-inset-top)) 1.25rem 1.5rem}.auth-story-copy{max-width:calc(100% - 130px);margin-top:2rem}.auth-story h1{font-size:clamp(1.75rem,8vw,2.35rem)}.auth-product-copy{display:none}.auth-illustration{width:170px;bottom:-2.5rem;right:-1rem}.auth-panel{padding:1.75rem max(1.25rem, env(safe-area-inset-right)) max(2rem, env(safe-area-inset-bottom)) max(1.25rem, 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#ffffff1f}.auth-page:has(.auth-card):before{top:-8rem;right:-6rem;box-shadow:inset 0 0 0 2.5rem #ffffff2e,0 0 0 4rem #ffffff1f}.entry-page:has(.entry-card):after{border-color:#082b5617;bottom:-10rem;left:-7rem}.auth-page:has(.auth-card):after{border-color:#082b5617;bottom:-10rem;left:-7rem}.entry-scene,.auth-scene{display:none}.entry-card,.auth-card{z-index:1;width:min(100%,640px);box-shadow:var(--shadow-lg);background:#fffffff5;border:1px solid #082b561f;border-radius:clamp(1.25rem,3vw,2rem);position:relative;overflow:hidden}.entry-card{flex-direction:column;justify-content:space-between;min-height:min(760px,100dvh - 5rem);padding:clamp(2rem,6vw,4.5rem);display:flex}.entry-card-header,.auth-card-header{text-align:center;justify-items:center;display:grid}.entry-card .brand-lockup,.auth-card .brand-lockup{text-align:center;flex-direction:column}.entry-card .brand-avatar,.auth-card .brand-avatar{border:4px solid var(--color-surface-raised);width:clamp(5.5rem,13vw,7.5rem);height:clamp(5.5rem,13vw,7.5rem);box-shadow:0 0 0 2px var(--color-heading), var(--shadow-sm)}.entry-card .brand-signature-mark,.auth-card .brand-signature-mark{bottom:0;right:0}.entry-card .brand-lockup-copy,.auth-card .brand-lockup-copy{align-items:center}.entry-card .entry-intro{text-align:center;max-width:34rem;margin:clamp(2rem,6vh,4rem) auto}.entry-card .entry-intro h1{max-width:none;font-size:clamp(2.25rem,6vw,3.8rem)}.entry-card .entry-actions{width:100%}.entry-card .entry-footnote{text-align:center;margin:1.5rem 0 0}.auth-card{grid-template-columns:.88fr 1.12fr;width:min(100%,920px);display:grid}.auth-card-header{background:radial-gradient(circle at 50% 10%, #0a97921f, transparent 45%), var(--color-canvas-subtle);align-content:center;padding:clamp(2rem,4vw,3.25rem)}.auth-card .auth-story-copy{max-width:24rem;margin:2.25rem 0 0}.auth-product-title{color:var(--color-heading);margin:.75rem 0;font-size:clamp(1.6rem,3vw,2.4rem);font-weight:800;line-height:1.2}.auth-card .auth-panel{min-width:0;padding:clamp(2rem,5vw,4rem)}.auth-card .auth-panel-heading h1{margin:.55rem 0 .75rem;font-size:clamp(1.75rem,4vw,2.4rem)}.auth-panel-body{min-width:0}@media (max-width:720px){:is(.entry-page:has(.entry-card),.auth-page:has(.auth-card)){min-height:100dvh;padding:max(1rem, env(safe-area-inset-top)) max(1rem, env(safe-area-inset-right)) max(1rem, env(safe-area-inset-bottom)) max(1rem, env(safe-area-inset-left))}.entry-card{min-height:auto;padding:1.5rem}.entry-card .entry-intro{margin-block:2rem}.entry-card .entry-intro h1{font-size:clamp(2rem,11vw,3rem)}.auth-card{grid-template-columns:1fr}.auth-card-header{padding:1.5rem}.auth-card .brand-lockup{text-align:left;flex-direction:row}.auth-card .brand-avatar{width:4.5rem;height:4.5rem}.auth-card .brand-lockup-copy{align-items:flex-start}.auth-card .auth-story-copy{margin-top:1.5rem}.auth-card .auth-product-copy{display:none}.auth-card .auth-panel{border-top:1px solid var(--color-border);padding:1.5rem}}@media (max-width:520px){.entry-card .entry-actions{grid-template-columns:1fr}.entry-card .brand-avatar{width:5rem;height:5rem}.entry-card .entry-footnote{font-size:var(--text-xs)}}body:has(.role-login-page){padding:0;overflow:hidden}.role-login-page{isolation:isolate;background-color:#fbf6e9;background-image:linear-gradient(#486f9114 1px,#0000 1px),linear-gradient(90deg,#486f9114 1px,#0000 1px);background-size:26px 26px;place-items:start center;width:100%;min-height:100dvh;padding:clamp(2rem,6.5dvh,4rem) 1.5rem 2rem;display:grid;position:relative;overflow:hidden}.role-login-card{z-index:10;background:#fefefe;border:1px solid #132d520d;border-radius:28px;flex-direction:column;width:min(440px,100vw - 48px);min-height:min(700px,100dvh - clamp(4rem,9dvh,6rem));padding:clamp(1.75rem,3.8dvh,2.35rem) 42px 32px;display:flex;position:relative;box-shadow:0 20px 48px #33445729,0 4px 12px #33445714}.role-login-brand{text-align:center;justify-items:center;display:grid}.role-login-mascot{margin:0 auto 15px}.role-login-brand h1{color:#132d52;letter-spacing:-.4px;margin:0;font-size:28px;font-weight:750;line-height:1.15}.role-login-brand p{color:#4c8490;letter-spacing:1.2px;margin:6px 0 0;font-size:13px;font-weight:650}.auth-form-role-login{flex-direction:column;flex:auto;gap:0;max-width:none;margin-top:clamp(1.35rem,3.4dvh,2rem);display:flex}.auth-form-role-login .auth-fields{gap:14px;display:grid}.auth-form-role-login .role-login-field{gap:7px;display:grid}.auth-form-role-login .role-login-field>label{color:#243f5f;margin:0;font-size:13px;font-weight:700}.role-login-input-shell{border-radius:var(--radius-md);background:var(--color-surface-raised);height:54px;transition:border-color var(--transition-fast), box-shadow var(--transition-fast);border:1px solid 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705px)}.role-login-sketch-molecule{width:225px;bottom:1.5%;left:calc(50% - 690px);transform:rotate(-4deg)}.role-login-sketch-atom{color:#267ca6;opacity:.72;width:330px;top:4.5%;left:calc(50% + 345px);transform:rotate(2deg)}.role-login-sketch-chain{opacity:.48;width:140px;top:41%;left:calc(50% + 315px);transform:rotate(-3deg)}.role-login-sketch-glassware{width:290px;bottom:1.5%;left:calc(50% + 350px);transform:rotate(1deg)}.role-login-sketch-periodic{color:#397f9f;opacity:.37;width:150px;top:6%;left:calc(50% - 500px);transform:rotate(-2deg)}.role-login-sketch-titration{color:#2c7c9f;opacity:.42;width:145px;top:35%;left:calc(50% - 685px);transform:rotate(2deg)}.role-login-formulas{color:#17658a;letter-spacing:.02em;font-family:ui-monospace,SFMono-Regular,Consolas,Liberation 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