:root{font-family:Inter,Arial,sans-serif;font-size:16px;color:#182c36;background:#f6f8f8}*{box-sizing:border-box}body{margin:0}a{color:#166274}button,input,select,textarea{font:inherit}button{cursor:pointer}button:focus-visible,input:focus-visible,textarea:focus-visible,select:focus-visible{outline:3px solid #d1a343;outline-offset:2px}.shell{min-height:100vh}.layout{display:grid;grid-template-columns:236px 1fr;min-height:100vh}.rail{background:#173845;color:#f9ffff;padding:32px 20px;display:flex;flex-direction:column;gap:22px}.brand{font-size:26px;font-weight:800;letter-spacing:-.06em}.subtitle{font-size:11px;letter-spacing:.14em;text-transform:uppercase;color:#a9c5cc}.nav-item{padding:13px;border:0;background:transparent;color:#c9dce2;width:100%;text-align:left;border-radius:8px}.nav-item.selected,.nav-item:hover{background:#315463;color:white}.foot{margin-top:auto;font-size:12px;line-height:1.6;color:#b4cbd0}.main{max-width:1230px;width:100%;margin:0 auto;padding:40px 44px}.top{display:flex;align-items:flex-end;justify-content:space-between;gap:12px}.eyebrow{font-size:12px;color:#6d7e87;letter-spacing:.16em;text-transform:uppercase;font-weight:700}h1{font-size:35px;margin:8px 0 4px;letter-spacing:-.04em}h2{font-size:20px;margin:0 0 13px}p{line-height:1.6}.muted{color:#687b84}.grid{display:grid;grid-template-columns:1.15fr 1fr;gap:22px;margin-top:25px}.card{background:white;border:1px solid #dfe7e7;border-radius:16px;padding:26px;box-shadow:0 4px 24px #203f4f09}.wide{grid-column:1/-1}.chip{display:inline-flex;background:#eff4ee;color:#3b674d;padding:7px 11px;border-radius:20px;font-size:12px;font-weight:700}.logo-mark{display:inline-flex;align-items:center;justify-content:center;width:48px;height:48px;background:#eff0de;border-radius:13px;color:#294f56;font-size:24px}.row{display:flex;gap:10px;align-items:center;flex-wrap:wrap}.between{justify-content:space-between}.btn{background:#18485b;color:white;border:none;border-radius:9px;padding:12px 16px;font-weight:650}.btn:hover{background:#0d3749}.btn.secondary{background:#e8f0f2;color:#204250}.btn.outline{background:transparent;border:1px solid #b9cbd1;color:#265062}.btn.small{font-size:12px;padding:7px 10px}.field{display:block;margin-bottom:14px;font-size:13px;font-weight:650;color:#36515e}.field input,.field textarea,.field select{display:block;width:100%;margin-top:8px;border:1px solid #cad6d8;background:white;border-radius:9px;padding:12px;color:#1d353e}.field textarea{min-height:100px;resize:vertical}.task{display:flex;align-items:center;justify-content:space-between;border-bottom:1px solid #edf0f1;padding:12px 0;gap:12px}.task:last-child{border:0}.task strong{display:block}.pill{border-radius:30px;padding:4px 10px;background:#eef4f5;font-size:12px;color:#456271}.done{text-decoration:line-through;color:#71858b}.topic-list{display:flex;flex-wrap:wrap;gap:9px}.topic{background:#f1f5f4;border:1px solid #dfe8e6;padding:10px;border-radius:8px;text-align:left;color:#204753}.answer{white-space:pre-wrap;background:#f4f8f8;padding:20px;border-radius:12px;border-left:3px solid #518384;min-height:75px;line-height:1.68}.notice{font-size:12px;color:#687b84}.danger{background:#fff0e8;color:#803b28;border:1px solid #efc2af;padding:13px;border-radius:10px}.ok{background:#eaf5ec;color:#255a3a;border:1px solid #c5dfcb;padding:10px;border-radius:9px}.login-wrap{min-height:100vh;display:grid;place-items:center;padding:24px;background:radial-gradient(circle at top left,#e3f0ed,#f7f8f7 50%)}.login-card{width:min(460px,100%);background:white;padding:36px;border:1px solid #dce6e5;border-radius:19px;box-shadow:0 14px 50px #284e561b}.divider{height:1px;background:#e9eff0;margin:20px 0}.metric{font-size:39px;font-weight:750;color:#214d5b}.loading{padding:40px}.note-list{line-height:1.8}.menu-toggle{display:none}footer{margin-top:28px;font-size:12px;color:#71838a}@media(max-width:850px){.layout{grid-template-columns:1fr}.rail{padding:14px 18px;display:flex;flex-direction:row;align-items:center;flex-wrap:wrap;gap:8px}.rail .subtitle,.rail .foot{display:none}.brand{font-size:20px;margin-right:auto}.nav-item{width:auto;padding:10px}.main{padding:25px 17px}.grid{grid-template-columns:1fr}.wide{grid-column:auto}h1{font-size:28px}.card{padding:19px}}


/* Student-first practice flow: readable targets, generous spacing and small-screen layout. */
.subject-fieldset{border:1px solid #dce7e6;border-radius:12px;padding:18px;margin:16px 0}
.subject-fieldset legend{font-weight:700;color:#264652;padding:0 8px}
.subject-choices{display:grid;grid-template-columns:repeat(auto-fit,minmax(160px,1fr));gap:9px}
.subject-choice{padding:12px;border:1px solid #d4e2e3;background:#f9fbfb;border-radius:10px;font-weight:600;font-size:14px;cursor:pointer}
.subject-choice input{accent-color:#27687a;width:17px;height:17px;vertical-align:middle}
.practice-option{display:block;border:1px solid #d3e3e1;border-radius:11px;padding:15px;margin-bottom:11px;background:#f7fbfa;cursor:pointer;min-height:52px}
.practice-option:focus-within{outline:2px solid #327283;outline-offset:2px}
.practice-option input{margin-right:12px;accent-color:#18485b;width:18px;height:18px;vertical-align:middle}
.worked-example{padding:20px;background:#eff6f4;border-left:4px solid #326d70;border-radius:10px;line-height:1.8}
#practice-feedback{line-height:1.65}
#content{margin-top:20px}
@media(max-width:850px){.subject-choices{grid-template-columns:repeat(2,minmax(0,1fr))}.practice-option{padding:16px}.field input,.field select{min-height:48px}}
@media(max-width:400px){.subject-choices{grid-template-columns:1fr}}


/* Learner-owned, calm visual system: high-contrast colourways, readable controls. */
:root{--saathi-accent:#18485b;--saathi-rail:#173845;--saathi-glow:#e3f1ef;--saathi-surface:#f6f8f8}
:root[data-saathi-theme="forest"]{--saathi-accent:#245c45;--saathi-rail:#1d4034;--saathi-glow:#e8f3e9;--saathi-surface:#f5f9f5}
:root[data-saathi-theme="violet"]{--saathi-accent:#51377c;--saathi-rail:#34264e;--saathi-glow:#f2ebfa;--saathi-surface:#faf7fd}
:root[data-saathi-text-size="large"]{font-size:18px}
body{background:var(--saathi-surface)}
.rail{background:var(--saathi-rail)}
.btn:not(.secondary):not(.outline){background:var(--saathi-accent)}
.btn:not(.secondary):not(.outline):hover{filter:brightness(.9)}
.nav-item{min-height:44px}
.learner-home{display:grid;gap:18px}
.day-intro{background:linear-gradient(115deg,var(--saathi-glow),#fff 76%);border-color:#dce6e5}
.day-title{font-size:clamp(1.55rem,3.1vw,2.15rem);line-height:1.25;margin:20px 0 4px;letter-spacing:-.025em}
.today-focus{padding:18px;border-radius:12px;background:#fff;border:1px solid #d5e4e6;margin:18px 0}
.today-focus p{margin:7px 0 12px}
.activity-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:16px}
.activity-card{display:flex;flex-direction:column;align-items:flex-start;gap:8px;min-height:216px}
.activity-card h2{margin:4px 0 0}
.activity-card p{flex:1;margin:0 0 12px}
.activity-link{display:inline-block;text-decoration:none}
.quick-ask{display:flex;align-items:center;flex-wrap:wrap;gap:12px}
.quick-ask h2{width:100%;margin:0}
.quick-ask p{width:100%;margin:0}
.myspace-grid{grid-template-columns:1fr}
.settings-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:16px}
.choice-toggle{display:flex;align-items:center;gap:10px;border:1px solid #d7e4e4;background:#f9fbfb;border-radius:12px;padding:13px;min-height:50px;font-weight:600;cursor:pointer}
.choice-toggle input{height:19px;width:19px;accent-color:var(--saathi-accent);flex:0 0 auto}
.idea-list{list-style:none;padding:0;margin:12px 0}
.idea{display:flex;align-items:center;justify-content:space-between;gap:12px;padding:14px 0;border-bottom:1px solid #e3e9e9;overflow-wrap:anywhere}
.idea:last-child{border-bottom:none}
.myspace-grid h3{font-size:1.05rem}
@media(max-width:850px){
 .rail{display:block;padding:14px 16px}
 .rail nav{display:flex;overflow-x:auto;gap:5px;margin:12px 0;max-width:100%;scrollbar-width:thin}
 .rail nav .nav-item{flex:0 0 auto;white-space:nowrap}
 .rail>.nav-item{display:inline-flex!important}
 .rail #logout{margin-left:12px}
 .activity-grid{grid-template-columns:1fr 1fr}
 .settings-grid{grid-template-columns:1fr}
 .day-intro,.activity-card,.quick-ask{padding:20px}
}
@media(max-width:620px){
 .activity-grid{grid-template-columns:1fr}
 .top{align-items:flex-start;flex-wrap:wrap}
 .day-intro{padding:19px}
 .quick-ask{align-items:stretch}
 .rail #logout{min-height:44px}
}
@media(prefers-reduced-motion:reduce){*,*::before,*::after{scroll-behavior:auto!important;animation-duration:.01ms!important;transition-duration:.01ms!important}}

/* Clean learner home and grouped feature/settings surfaces. */
.learner-home{display:grid;gap:22px}
.home-welcome{display:flex;align-items:center;justify-content:space-between;gap:22px;padding:28px 30px;border:1px solid #d7e6e5;border-radius:18px;background:linear-gradient(115deg,#e7f2ef,#fff 76%)}
.home-welcome h2{font-size:clamp(1.5rem,3vw,2.1rem);margin:8px 0}
.home-welcome p{max-width:600px;margin:5px 0 0;color:#617781}
.home-summary{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:12px}
.home-summary article{display:grid;grid-template-columns:1fr auto;align-items:center;padding:15px 18px;border:1px solid #dfe8e8;border-radius:14px;background:#fff}
.home-summary article span,.home-summary article small{color:#6d8087;font-size:12px}
.home-summary article strong{grid-column:2;grid-row:1/3;font-size:26px;color:#214e5b}
.home-section{display:grid;gap:14px}
.section-heading{display:flex;align-items:end;justify-content:space-between;gap:12px}
.section-heading h2{margin:6px 0 0}
.feature-grid,.feature-hub-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:13px}
.feature-card,.feature-hub-card{display:flex;flex-direction:column;gap:8px;padding:19px;border:1px solid #dce7e7;border-radius:14px;background:#fff;color:#233b45;text-decoration:none;transition:transform .16s ease,border-color .16s ease,box-shadow .16s ease}
.feature-card:hover,.feature-hub-card:hover{transform:translateY(-2px);border-color:#8bb7b7;box-shadow:0 8px 22px #203f4f10;text-decoration:none}
.feature-card strong,.feature-hub-card strong{font-size:17px}
.feature-card span:not(.eyebrow),.feature-hub-card small{color:#687b84;line-height:1.45}
.feature-card b{margin-top:4px;color:#266373;font-size:13px}
.home-agenda{padding:0;overflow:hidden}
.home-agenda summary{display:flex;align-items:center;justify-content:space-between;gap:12px;padding:18px 20px;cursor:pointer;list-style:none}
.home-agenda summary::-webkit-details-marker{display:none}
.home-agenda summary span:first-child{display:grid;gap:4px}
.home-agenda summary small{color:#6d8087}
.agenda-count{padding:5px 9px;border-radius:20px;background:#edf4f1;color:#3e6659;font-size:12px}
.agenda-body{padding:0 20px 18px;border-top:1px solid #e8eeee}
.settings-page,.features-page{display:grid;gap:15px}
.settings-intro,.features-intro{padding:5px 2px 4px}
.settings-intro h2,.features-intro h2{font-size:24px;margin:7px 0}
.settings-intro p,.features-intro p{margin:0;color:#687b84}
.settings-form{display:grid;gap:12px}
.settings-group{border:1px solid #dce7e7;border-radius:14px;background:#fff;overflow:hidden}
.settings-group>summary{padding:17px 19px;font-weight:720;cursor:pointer;list-style:none}
.settings-group>summary::-webkit-details-marker{display:none}
.settings-group>summary::after{content:'+';float:right;color:#55747b;font-size:20px;line-height:1}
.settings-group[open]>summary::after{content:'−'}
.settings-group[open]>summary{border-bottom:1px solid #e8eeee}
.settings-group-body{padding:17px 19px}
.settings-group-body .notice{margin:10px 0}
.settings-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:16px}
.settings-actions{padding:5px 0}
.settings-ideas{margin-top:5px}
.feature-hub-card{min-height:145px}
.feature-hub-card>span{font-size:11px;font-weight:750;letter-spacing:.1em;color:#6a8989}
.feature-hub-card>strong{font-size:18px}
@media(max-width:620px){
 .home-welcome{align-items:flex-start;flex-direction:column;padding:22px}
 .home-summary{gap:8px}
 .home-summary article{padding:12px 10px;grid-template-columns:1fr;gap:3px}
 .home-summary article strong{grid-column:1;grid-row:auto;font-size:23px}
 .feature-grid,.feature-hub-grid{grid-template-columns:1fr}
 .settings-grid{grid-template-columns:1fr}
 .section-heading{align-items:flex-start}
}
@media(prefers-reduced-motion:reduce){.feature-card,.feature-hub-card{transition:none}}