:root{
  --ink:#10203a;--text:#33415c;--muted:#6f7d96;--blue:#1155ff;--blue2:#1534a3;--navy:#071842;
  --soft:#f5f8ff;--soft2:#eef3ff;--line:#e2e8f3;--white:#fff;--green:#0b9b73;--gold:#e39b21;
  --shadow:0 18px 50px rgba(18,38,88,.10);--radius:22px;--max:1180px;
}
*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;background:#fff;color:var(--text);font-family:Inter,ui-sans-serif,system-ui,-apple-system,BlinkMacSystemFont,"Segoe UI","Noto Sans Bengali","Hind Siliguri",Arial,sans-serif;line-height:1.72;-webkit-font-smoothing:antialiased}a{color:inherit;text-decoration:none}img{max-width:100%;height:auto}.container{width:min(var(--max),calc(100% - 40px));margin:auto}.narrow{max-width:860px}.skip-link{position:absolute;left:-9999px;top:8px;z-index:9999;background:#fff;color:#111;padding:10px 14px;border-radius:8px}.skip-link:focus{left:8px}
.site-header{position:sticky;top:0;z-index:100;background:rgba(255,255,255,.96);backdrop-filter:blur(14px);border-bottom:1px solid rgba(226,232,243,.88)}.header-row{min-height:82px;display:flex;align-items:center;justify-content:space-between;gap:28px}.brand-wrap{display:flex;align-items:center;gap:12px;min-width:0}.brandmark{display:flex;align-items:center}.site-logo{width:52px;height:52px;object-fit:contain;border-radius:14px}.brand-copy{display:flex;flex-direction:column;line-height:1.16}.brand-copy strong{font-size:1.08rem;color:var(--ink);letter-spacing:-.02em}.brand-copy span{font-size:.72rem;color:var(--muted);margin-top:5px;max-width:310px}.main-nav{display:flex;align-items:center;gap:6px;flex-wrap:wrap;justify-content:flex-end}.main-nav a{font-size:.88rem;font-weight:750;color:#394863;padding:9px 12px;border-radius:10px}.main-nav a:hover{background:var(--soft2);color:var(--blue)}.main-nav a:focus-visible,.button:focus-visible,.lesson-card a:focus-visible{outline:3px solid rgba(17,85,255,.28);outline-offset:2px}
.hero{position:relative;overflow:hidden;background:linear-gradient(145deg,#f7f9ff 0%,#eef4ff 55%,#fff 100%);padding:90px 0 80px;border-bottom:1px solid var(--line)}.hero:before{content:"";position:absolute;width:520px;height:520px;border-radius:50%;background:radial-gradient(circle,rgba(17,85,255,.16),rgba(17,85,255,0) 68%);right:-110px;top:-180px}.hero-grid{position:relative;display:grid;grid-template-columns:minmax(0,1.15fr) minmax(360px,.85fr);gap:70px;align-items:center}.eyebrow,.section-label{text-transform:uppercase;letter-spacing:.13em;font-size:.73rem;font-weight:900;color:var(--blue)}.hero h1{font-size:clamp(3.1rem,6vw,5.8rem);line-height:.98;letter-spacing:-.055em;margin:18px 0 24px;color:var(--ink);max-width:840px}.hero h1 span{color:var(--blue)}.hero-copy>p{font-size:1.12rem;color:#53627d;max-width:760px;margin:0}.hero-links{display:flex;gap:12px;flex-wrap:wrap;margin:30px 0 23px}.button{display:inline-flex;align-items:center;justify-content:center;min-height:46px;padding:11px 18px;border-radius:12px;font-weight:850;font-size:.88rem}.button.primary{background:linear-gradient(135deg,var(--blue),#083ccc);color:#fff;box-shadow:0 12px 26px rgba(17,85,255,.23)}.button.secondary{background:#fff;color:var(--ink);border:1px solid var(--line)}.hero-points{display:flex;gap:18px;flex-wrap:wrap;color:#5a6780;font-size:.84rem;font-weight:700}.hero-card{background:rgba(255,255,255,.86);border:1px solid #dbe4f6;border-radius:28px;padding:24px;box-shadow:var(--shadow)}.hero-card-top{display:flex;justify-content:space-between;align-items:center;gap:20px;font-size:.73rem;color:var(--muted);letter-spacing:.06em}.hero-card-top strong{color:var(--ink);font-size:.8rem}.logo-stage{display:flex;align-items:center;justify-content:center;height:250px;background:linear-gradient(150deg,#071b5c,#0b54ff);border-radius:22px;margin:18px 0}.logo-stage img{width:190px;filter:drop-shadow(0 12px 24px rgba(0,0,0,.14))}.course-stack{display:grid;grid-template-columns:1fr 1fr;gap:10px}.course-stack div{border:1px solid var(--line);background:#fff;border-radius:14px;padding:12px 14px}.course-stack b{display:block;color:var(--ink);font-size:.86rem}.course-stack span{font-size:.72rem;color:var(--muted)}
.quality-strip{border-bottom:1px solid var(--line);background:#fff}.quality-grid{display:grid;grid-template-columns:repeat(4,1fr)}.quality-grid>div{padding:22px 24px;border-right:1px solid var(--line)}.quality-grid>div:last-child{border-right:0}.quality-grid strong{display:block;color:var(--ink);font-size:.92rem}.quality-grid span{display:block;color:var(--muted);font-size:.75rem;margin-top:2px}.section{padding:86px 0}.section.tint{background:var(--soft)}.section-head{display:flex;justify-content:space-between;gap:40px;align-items:end;margin-bottom:30px}.section-head h2,.info-panel h2{font-size:clamp(2rem,4vw,3.25rem);letter-spacing:-.045em;line-height:1.05;color:var(--ink);margin:10px 0 0}.section-head>p{max-width:520px;color:var(--muted);margin:0}.lesson-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}.lesson-card{border:1px solid var(--line);background:#fff;border-radius:20px;padding:22px;display:flex;flex-direction:column;min-height:300px;transition:transform .2s ease,box-shadow .2s ease}.lesson-card:hover{transform:translateY(-4px);box-shadow:var(--shadow)}.card-meta{display:flex;justify-content:space-between;gap:10px;margin-bottom:18px}.card-meta span{font-size:.7rem;font-weight:900;letter-spacing:.06em;text-transform:uppercase;border:1px solid #dce5f7;background:#f8faff;color:#5e6f8d;padding:5px 8px;border-radius:999px}.lesson-card h2,.lesson-card h3{font-size:1.32rem;line-height:1.25;letter-spacing:-.025em;color:var(--ink);margin:0 0 12px}.lesson-card p{color:var(--muted);font-size:.9rem;margin:0 0 22px}.card-bottom{margin-top:auto;padding-top:14px;border-top:1px solid var(--line);display:flex;justify-content:space-between;gap:14px;font-size:.78rem;color:var(--muted)}.card-bottom a{color:var(--blue);font-weight:850}.steps-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:16px}.steps-grid>div{background:#fff;border:1px solid var(--line);border-radius:18px;padding:22px}.steps-grid span{display:inline-flex;width:36px;height:36px;border-radius:50%;align-items:center;justify-content:center;background:var(--soft2);color:var(--blue);font-weight:900;font-size:.72rem}.steps-grid h3{color:var(--ink);margin:16px 0 7px}.steps-grid p{color:var(--muted);font-size:.86rem;margin:0}.info-panel{display:flex;align-items:center;justify-content:space-between;gap:40px;padding:34px 38px;background:linear-gradient(135deg,#071842,#11389a);color:#fff;border-radius:26px}.info-panel h2{color:#fff}.info-panel p{color:#c9d5f4;max-width:760px;margin-bottom:0}.info-panel .eyebrow{color:#8ab2ff}
.archive-hero,.page-hero,.lesson-hero{background:linear-gradient(145deg,#f6f9ff,#edf3ff);border-bottom:1px solid var(--line)}.archive-hero{padding:74px 0}.archive-hero h1,.page-hero h1,.lesson-hero h1{color:var(--ink);letter-spacing:-.05em;line-height:1.02;margin:12px 0 16px}.archive-hero h1,.page-hero h1{font-size:clamp(2.7rem,5vw,4.8rem)}.archive-hero p{max-width:720px;color:var(--muted);font-size:1rem;margin:0}.page-hero{padding:64px 0 54px}.lesson-hero{padding:62px 0 54px}.lesson-hero-inner{display:grid;grid-template-columns:minmax(0,1fr) 120px;gap:44px;align-items:end}.lesson-hero h1{font-size:clamp(2.5rem,5vw,4.65rem);max-width:930px}.lesson-hero p{max-width:880px;color:var(--muted);font-size:1rem;margin:0}.back-link{display:inline-block;color:var(--blue);font-weight:850;font-size:.82rem;margin-bottom:20px}.lesson-tags{display:flex;flex-wrap:wrap;gap:7px;margin-bottom:12px}.lesson-tags span{font-size:.72rem;font-weight:850;background:#fff;border:1px solid #dce4f4;border-radius:999px;padding:5px 9px;color:#60708b}.lesson-number-big{font-size:5rem;line-height:1;font-weight:950;letter-spacing:-.08em;color:#d7e3ff;text-align:right}.lesson-section{padding:54px 0 82px}.lesson-shell{max-width:1000px}.prose{font-size:1rem;color:#303b51}.prose h2{font-size:2rem;line-height:1.15;letter-spacing:-.035em;color:var(--ink);margin:56px 0 18px;padding-top:3px}.prose h3{font-size:1.25rem;color:var(--ink);margin:34px 0 12px}.prose p{margin:0 0 18px}.prose ul,.prose ol{padding-left:22px}.prose li{margin:7px 0}.lesson-intro{background:linear-gradient(135deg,#f7f9ff,#eef3ff);border:1px solid #dce6fb;border-radius:20px;padding:24px 26px;margin-bottom:34px}.lesson-intro h2{margin:8px 0 8px;padding:0}.lesson-intro p{margin:0}.table-scroll{width:100%;overflow:auto;margin:20px 0 28px;border:1px solid var(--line);border-radius:16px;background:#fff}.prose table{width:100%;border-collapse:collapse;min-width:640px}.prose th,.prose td{text-align:left;vertical-align:top;padding:13px 14px;border-bottom:1px solid #e9edf5}.prose th{background:#f5f8ff;color:#44536d;font-size:.76rem;text-transform:uppercase;letter-spacing:.04em}.prose tr:last-child td{border-bottom:0}.rule-box,.lesson-callout,.model-answer,.dialogue-card,.lesson-note{border-radius:16px;padding:18px 20px;margin:20px 0}.rule-box{background:#f1f6ff;border-left:4px solid var(--blue)}.lesson-callout{background:#f1fbf7;border-left:4px solid var(--green)}.model-answer{background:#fff9ec;border-left:4px solid var(--gold)}.model-answer p:last-child,.dialogue-card p:last-child{margin-bottom:0}.dialogue-card{background:#fafbfe;border:1px solid var(--line)}.lesson-note{background:#fbfcff;border:1px dashed #cbd6ea;color:#58667d}.phrase-columns{display:grid;grid-template-columns:repeat(2,1fr);gap:10px;margin:18px 0 28px}.phrase-columns p{margin:0;background:#fff;border:1px solid var(--line);border-radius:12px;padding:11px 13px}.answer-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:12px;margin:18px 0 28px}.answer-grid>div{background:#fff;border:1px solid var(--line);border-radius:14px;padding:16px}.answer-grid p{font-size:.9rem;margin:6px 0 0}.practice-list{background:#fafcff;border:1px solid var(--line);border-radius:16px;padding:16px 18px 16px 42px!important}.word-bank{padding:18px 20px;border:1px solid var(--line);background:#fafcff;border-radius:15px;line-height:2}.lesson-vocab{margin-top:58px}.lesson-vocab h2{margin-top:8px}.lesson-nav{display:grid;grid-template-columns:1fr 1fr;gap:16px;margin-top:26px}.lesson-nav>div{border:1px solid var(--line);border-radius:16px;padding:16px;background:#fff;min-height:72px}.lesson-nav>div:last-child{text-align:right}.lesson-nav small{display:block;color:var(--muted);font-size:.72rem;margin-bottom:3px}.lesson-nav a{color:var(--blue);font-weight:850;font-size:.9rem}.page-content h2{color:var(--ink);margin:34px 0 10px}.contact-email{font-size:1.1rem;padding:18px 20px;border:1px solid var(--line);border-radius:14px;background:var(--soft)}.empty-state{text-align:center;padding:80px 0}.big-404{font-size:7rem;line-height:1;color:#dbe5fb;font-weight:950}
.site-footer{background:#06132f;color:#dbe3f4;padding:52px 0 20px}.footer-main{display:grid;grid-template-columns:1fr 250px;gap:50px;align-items:start}.footer-brand{display:flex;gap:15px;align-items:flex-start;max-width:650px}.footer-brand .site-logo{width:58px;height:58px}.footer-brand strong{display:block;color:#fff;font-size:1.05rem}.footer-brand p{margin:6px 0 0;color:#9faecc;font-size:.86rem}.footer-links{display:flex;flex-direction:column;gap:7px}.footer-links strong{color:#fff;margin-bottom:4px}.footer-links a{font-size:.82rem;color:#aebbd4}.footer-links a:hover{color:#fff}.footer-bottom{margin-top:36px;padding-top:18px;border-top:1px solid rgba(255,255,255,.12);display:flex;justify-content:space-between;gap:20px;color:#8292b2;font-size:.72rem}
@media (max-width:980px){.header-row{align-items:flex-start;flex-direction:column;padding:14px 0}.main-nav{justify-content:flex-start}.hero-grid{grid-template-columns:1fr}.hero-card{max-width:650px}.lesson-grid{grid-template-columns:repeat(2,1fr)}.quality-grid,.steps-grid{grid-template-columns:repeat(2,1fr)}.quality-grid>div:nth-child(2){border-right:0}.section-head{align-items:flex-start;flex-direction:column}.lesson-hero-inner{grid-template-columns:1fr}.lesson-number-big{display:none}.footer-main{grid-template-columns:1fr}.footer-links{display:grid;grid-template-columns:repeat(3,1fr)}.footer-links strong{grid-column:1/-1}}
@media (max-width:640px){.container{width:min(var(--max),calc(100% - 28px))}.brand-copy span{font-size:.68rem}.header-row{gap:10px}.main-nav{width:100%;gap:2px;justify-content:flex-start;flex-wrap:nowrap;overflow-x:auto;overscroll-behavior-inline:contain;scrollbar-width:none;padding-bottom:2px}.main-nav::-webkit-scrollbar{display:none}.main-nav a{flex:0 0 auto;padding:7px 9px;font-size:.8rem}.hero{padding:64px 0}.hero h1{font-size:3.15rem}.hero-copy>p{font-size:1rem}.logo-stage{height:220px}.logo-stage img{width:160px}.course-stack{grid-template-columns:1fr}.quality-grid{grid-template-columns:1fr 1fr}.quality-grid>div{padding:16px 12px}.section{padding:64px 0}.lesson-grid,.steps-grid,.phrase-columns,.answer-grid,.lesson-nav{grid-template-columns:1fr}.section-head h2,.info-panel h2{font-size:2.35rem}.info-panel{padding:28px 22px;flex-direction:column;align-items:flex-start}.archive-hero{padding:54px 0}.lesson-hero{padding:46px 0 40px}.lesson-hero h1{font-size:2.65rem}.lesson-section{padding-top:38px}.prose h2{font-size:1.65rem;margin-top:46px}.footer-links{grid-template-columns:1fr 1fr}.footer-bottom{flex-direction:column}.hero-points{gap:10px}.lesson-card{min-height:auto}}

/* v3 learning account, progress and quiz */
.nav-account{background:#0b54ff;color:#fff!important;border-radius:999px}.nav-account:hover{background:#083fc2!important;color:#fff!important}.complete-badge{display:inline-block;color:#0c8f5b;font-size:.72rem;margin-left:6px}.lesson-card.is-complete{border-color:#b8e6d1;box-shadow:0 0 0 1px #dff5ea inset}.lesson-card.is-complete:before{content:'✓';position:absolute;right:15px;top:15px;width:26px;height:26px;border-radius:50%;display:flex;align-items:center;justify-content:center;background:#e9f9f1;color:#0b8b59;font-weight:900}.lesson-card{position:relative}
.ssc-progress-card{margin-top:30px;border:1px solid #dce6fb;background:linear-gradient(135deg,#f8fbff,#edf4ff);border-radius:22px;padding:24px;display:flex;align-items:center;justify-content:space-between;gap:28px}.ssc-progress-card h2{font-size:1.55rem;margin:6px 0 8px;padding:0}.ssc-progress-card p{margin:0;color:var(--muted);max-width:680px}.ssc-progress-actions{display:flex;flex-direction:column;align-items:flex-end;gap:8px;min-width:210px}.ssc-complete-button.is-complete{background:#0b8b59;border-color:#0b8b59}.ssc-save-state{font-size:.75rem;color:var(--muted);min-height:18px}
.ssc-quiz{margin-top:64px;padding:30px;border:1px solid var(--line);border-radius:24px;background:#fff;box-shadow:0 18px 50px rgba(15,34,76,.06)}.ssc-quiz>h2{margin:7px 0 8px;padding:0}.ssc-quiz>p{color:var(--muted);margin-bottom:18px}.ssc-saved-score{display:inline-flex;padding:7px 10px;border-radius:999px;background:#eef4ff;color:#234681;font-size:.78rem;margin-bottom:16px}.ssc-quiz-question{border:1px solid var(--line);border-radius:17px;padding:18px;margin:16px 0}.ssc-quiz-question legend{font-weight:850;color:var(--ink);padding:0 8px;line-height:1.45}.ssc-quiz-question legend>span{display:inline-flex;width:26px;height:26px;align-items:center;justify-content:center;border-radius:50%;background:#edf3ff;color:var(--blue);font-size:.72rem;margin-right:8px}.ssc-options{display:grid;grid-template-columns:1fr 1fr;gap:10px;margin-top:12px}.ssc-option{display:flex;gap:10px;align-items:flex-start;border:1px solid #dfe6f2;background:#fbfcff;border-radius:12px;padding:11px 12px;cursor:pointer}.ssc-option:hover{border-color:#a9c0ef;background:#f4f8ff}.ssc-option input{margin-top:4px}.ssc-option.is-chosen{border-color:#6f9cff;background:#eef4ff}.ssc-option.is-answer{box-shadow:0 0 0 1px #21a56d inset}.ssc-question-feedback{font-size:.84rem;margin-top:11px;min-height:20px;color:#55657e}.ssc-quiz-question.is-correct{border-color:#a8dfc7;background:#f7fdf9}.ssc-quiz-question.is-correct .ssc-question-feedback{color:#08744a}.ssc-quiz-question.is-wrong{border-color:#f1c0c0;background:#fffafa}.ssc-quiz-question.is-wrong .ssc-question-feedback{color:#9a3030}.ssc-quiz-question.is-unanswered{border-color:#e8c88c;background:#fffaf1}.ssc-quiz-submit-row{display:flex;gap:10px;flex-wrap:wrap;margin-top:20px}.ssc-quiz-result{margin-top:16px}.ssc-quiz-result.is-ready,.ssc-quiz-result.is-warning{display:flex;justify-content:space-between;gap:20px;align-items:center;padding:15px 17px;border-radius:14px}.ssc-quiz-result.is-ready{background:#edf9f3;border:1px solid #b9e5cf;color:#0a7149}.ssc-quiz-result.is-warning{background:#fff8e8;border:1px solid #efd295;color:#7c5b17}.ssc-quiz-result span{font-size:.84rem}
.ssc-auth-wrap{max-width:760px;margin:0 auto}.ssc-auth-card{border:1px solid var(--line);background:#fff;border-radius:24px;padding:30px;box-shadow:var(--shadow)}.ssc-auth-card h2{font-size:2rem!important;margin:7px 0 10px!important}.ssc-auth-card>p{color:var(--muted)}.ssc-auth-form{display:grid;gap:14px;margin:22px 0}.ssc-auth-form label{display:grid;gap:6px;color:var(--ink);font-weight:750;font-size:.84rem}.ssc-auth-form input[type=text],.ssc-auth-form input[type=email],.ssc-auth-form input[type=password]{width:100%;padding:12px 13px;border:1px solid #ccd7e9;border-radius:11px;background:#fff;font:inherit}.ssc-auth-form input:focus{outline:3px solid rgba(11,84,255,.12);border-color:#6b99f1}.ssc-check{display:flex!important;grid-template-columns:auto 1fr!important;align-items:center!important;font-weight:500!important}.ssc-auth-small{font-size:.82rem;color:var(--muted)!important}.ssc-auth-error,.ssc-auth-success{padding:12px 14px;border-radius:12px;margin:14px 0;font-size:.86rem}.ssc-auth-error{background:#fff0f0;border:1px solid #f0c2c2;color:#963434}.ssc-auth-success{background:#edf9f3;border:1px solid #b9e5cf;color:#08744a}.ssc-hp{position:absolute!important;left:-99999px!important;opacity:0!important;width:1px!important;height:1px!important}
.ssc-dashboard{max-width:1000px;margin:0 auto}.ssc-dashboard-head{display:flex;align-items:center;justify-content:space-between;gap:30px}.ssc-dashboard-head h2{margin:7px 0 8px!important}.ssc-dashboard-head p{margin:0;color:var(--muted)}.ssc-progress-overview{display:grid;grid-template-columns:1fr 64px;gap:14px;align-items:center;margin:24px 0 28px;padding:18px;border:1px solid var(--line);border-radius:16px;background:#fafcff}.ssc-progress-bar{height:12px;background:#e7edf7;border-radius:999px;overflow:hidden}.ssc-progress-bar span{display:block;height:100%;background:linear-gradient(90deg,#0b54ff,#20a878);border-radius:999px}.ssc-progress-overview strong{text-align:right;color:var(--ink)}.ssc-dashboard-grid{display:grid;grid-template-columns:1fr 1fr;gap:14px}.ssc-dashboard-card{border:1px solid var(--line);background:#fff;border-radius:17px;padding:18px}.ssc-dashboard-card.is-complete{border-color:#b8e6d1;background:#fbfffd}.ssc-dashboard-card-top,.ssc-dashboard-card-bottom{display:flex;justify-content:space-between;gap:12px;align-items:center}.ssc-dashboard-card-top span,.ssc-dashboard-card-top b{font-size:.72rem}.ssc-dashboard-card-top span{color:var(--blue);font-weight:850}.ssc-dashboard-card-top b{color:var(--muted)}.ssc-dashboard-card.is-complete .ssc-dashboard-card-top b{color:#0b8b59}.ssc-dashboard-card h3{font-size:1.05rem;margin:10px 0 16px}.ssc-dashboard-card-bottom{border-top:1px solid var(--line);padding-top:12px;font-size:.77rem;color:var(--muted)}.ssc-dashboard-card-bottom a{color:var(--blue);font-weight:850}
.ssc-save-modal[hidden]{display:none!important}.ssc-save-modal{position:fixed;inset:0;z-index:99999;display:flex;align-items:center;justify-content:center;padding:20px}.ssc-save-modal-backdrop{position:absolute;inset:0;background:rgba(2,10,28,.68);backdrop-filter:blur(3px)}.ssc-save-modal-card{position:relative;z-index:2;width:min(520px,100%);background:#fff;border-radius:24px;padding:28px;box-shadow:0 30px 90px rgba(0,0,0,.28)}.ssc-save-modal-card h2{font-size:1.8rem;line-height:1.15;margin:8px 0 10px}.ssc-save-modal-card p{color:var(--muted)}.ssc-modal-x{position:absolute;right:13px;top:10px;border:0;background:transparent;font-size:1.8rem;color:#7a879d;cursor:pointer}.ssc-modal-actions{display:flex;gap:10px;flex-wrap:wrap;margin:20px 0 8px}.ssc-modal-open{overflow:hidden}
@media(max-width:760px){.ssc-progress-card,.ssc-dashboard-head{align-items:flex-start;flex-direction:column}.ssc-progress-actions{align-items:flex-start;min-width:0}.ssc-options,.ssc-dashboard-grid{grid-template-columns:1fr}.ssc-quiz{padding:20px 15px}.ssc-quiz-result.is-ready,.ssc-quiz-result.is-warning{align-items:flex-start;flex-direction:column}.ssc-dashboard-card-bottom{align-items:flex-start;flex-direction:column}.nav-account{margin-left:2px}}

/* v4 complete course refinements */
.center-action{display:flex;justify-content:center;margin-top:34px}.roadmap-grid>div{min-height:210px}.learner-panel{background:linear-gradient(135deg,#071842,#0b54ff)}.reading-box{background:#fff;border:1px solid var(--line);border-radius:16px;padding:20px 22px;margin:18px 0 22px}.reading-box p{margin:0}.course-stage-label{font-size:.72rem;font-weight:900;color:var(--blue)}

.reading-box{background:#fbfdff;border:1px solid #dce6f5;border-radius:18px;padding:22px 24px;margin:18px 0 22px;line-height:1.85}.reading-box p:last-child{margin-bottom:0}.prose h3+ .lesson-callout{margin-top:8px}

/* v6.2 professional homepage + SEO-focused learner UX */
.hero-v62{padding:92px 0 82px}.hero-v62 .hero-grid{grid-template-columns:minmax(0,1.08fr) minmax(360px,.92fr);gap:64px}.hero-v62 h1{font-size:clamp(3.4rem,6.2vw,6rem);max-width:760px}.hero-v62 .hero-lead{max-width:730px;font-size:1.08rem}.course-path-card{padding:26px}.path-brand{display:flex;align-items:center;gap:16px;padding:20px;border-radius:19px;background:linear-gradient(135deg,#0b2f8f,#1155ff);margin:18px 0;color:#fff}.path-brand img{width:78px;height:78px;object-fit:contain;flex:0 0 auto}.path-brand b{display:block;font-size:1.18rem}.path-brand span{display:block;color:#dbe7ff;font-size:.8rem;margin-top:3px}.path-stages{display:grid;gap:10px}.path-stages>div{display:flex;align-items:center;gap:13px;border:1px solid var(--line);background:#fff;border-radius:14px;padding:12px}.path-stages>div>span{width:34px;height:34px;border-radius:10px;display:flex;align-items:center;justify-content:center;background:var(--soft2);color:var(--blue);font-size:.72rem;font-weight:900}.path-stages p{margin:0;display:flex;flex-direction:column;line-height:1.3}.path-stages b{font-size:.86rem;color:var(--ink)}.path-stages small{font-size:.7rem;color:var(--muted);margin-top:3px}.live-note{margin-top:14px;padding:10px 12px;border-radius:12px;background:#f2f7ff;color:#52627c;font-size:.77rem}.live-note strong{color:var(--blue)}
.outcome-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:16px}.outcome-grid article{border:1px solid var(--line);border-radius:20px;background:#fff;padding:24px;box-shadow:0 10px 30px rgba(16,32,58,.04)}.outcome-icon{display:inline-flex;width:42px;height:42px;border-radius:13px;align-items:center;justify-content:center;background:linear-gradient(135deg,#edf3ff,#dfe9ff);color:var(--blue);font-weight:950}.outcome-grid h3{color:var(--ink);font-size:1.15rem;margin:16px 0 8px}.outcome-grid p{margin:0;color:var(--muted);font-size:.88rem}.published-section{border-top:1px solid #f1f4f9}.method-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}.method-grid>div{position:relative;border:1px solid var(--line);border-radius:18px;padding:24px;background:#fff}.method-grid>div>span{position:absolute;right:18px;top:18px;font-size:.72rem;font-weight:900;color:#a8b7d2}.method-grid h3{color:var(--ink);margin:0 0 8px}.method-grid p{margin:0;color:var(--muted);font-size:.87rem}.narrow-wide{max-width:980px}.faq-list{display:grid;gap:12px}.faq-list details{border:1px solid var(--line);border-radius:16px;background:#fff;padding:0 18px}.faq-list summary{cursor:pointer;color:var(--ink);font-weight:850;padding:18px 4px;list-style:none}.faq-list summary::-webkit-details-marker{display:none}.faq-list summary:after{content:'+';float:right;color:var(--blue);font-size:1.25rem;line-height:1}.faq-list details[open] summary:after{content:'–'}.faq-list p{margin:0;padding:0 4px 18px;color:var(--muted)}.final-cta{box-shadow:0 18px 55px rgba(5,31,96,.16)}
.lesson-focus-box{border:1px solid #d8e4fb;background:linear-gradient(135deg,#f9fbff,#eef4ff);border-radius:18px;padding:20px 22px;margin:0 0 30px}.lesson-focus-box p{margin:7px 0 0!important;color:#445570}.lesson-course-link{margin-top:44px;padding:16px 18px;border-top:1px solid var(--line);border-bottom:1px solid var(--line);background:#fbfcff;color:#5d6d86;font-size:.88rem}.lesson-course-link a{color:var(--blue);font-weight:850}.lesson-progressline{height:8px;background:#e1e9f7;border-radius:999px;overflow:hidden;margin-top:22px;max-width:620px}.lesson-progressline span{display:block;height:100%;border-radius:999px;background:linear-gradient(90deg,#1155ff,#0b9b73)}.lesson-progresscopy{display:block;margin-top:7px;color:#71809a;font-weight:750}
@media(max-width:980px){.hero-v62 .hero-grid{grid-template-columns:1fr}.course-path-card{max-width:680px}.outcome-grid{grid-template-columns:repeat(2,1fr)}.method-grid{grid-template-columns:repeat(2,1fr)}}
@media(max-width:640px){.hero-v62{padding:58px 0}.hero-v62 h1{font-size:3.1rem;line-height:1}.path-brand{padding:16px}.path-brand img{width:64px;height:64px}.outcome-grid,.method-grid{grid-template-columns:1fr}.outcome-grid article,.method-grid>div{padding:20px}.lesson-focus-box{padding:17px}.faq-list details{padding:0 14px}}