/*
Theme Name: The San Luis Project
Author: The San Luis Project
Description: A modern, accessible learning-library theme for original, open mathematics lessons, scientific applications and interactive practice.
Version: 1.1.0
Requires at least: 6.6
Requires PHP: 7.4
License: GNU General Public License v2 or later
License URI: https://www.gnu.org/licenses/gpl-2.0.html
Text Domain: san-luis-project
Tags: education, custom-logo, responsive-layout, block-styles, wide-blocks, translation-ready
*/
:root{--ink:#102a37;--ink-soft:#4e6570;--muted:#6f858d;--line:#dce6e8;--paper:#f7faf9;--white:#fff;--teal:#006c67;--teal-bright:#11a796;--teal-tint:#e8f6f2;--sky:#d8edf2;--coral:#ed936f;--coral-tint:#fff0e8;--violet:#7055a9;--shadow:0 18px 56px rgba(15,45,54,.07);--radius:20px;--content:1200px}
*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;background:var(--paper);color:var(--ink);font-family:Inter,ui-sans-serif,system-ui,-apple-system,BlinkMacSystemFont,'Segoe UI',sans-serif;font-size:16px;line-height:1.6;-webkit-font-smoothing:antialiased}a{color:var(--teal);text-decoration:none}a:hover{text-decoration:underline}a:focus-visible,button:focus-visible,input:focus-visible,select:focus-visible{outline:3px solid #e3a254;outline-offset:3px}button,input,select{font:inherit}button{cursor:pointer}img,svg{max-width:100%}svg{display:block}h1,h2,h3,h4,p{margin-top:0}h1,h2,h3{line-height:1.16;letter-spacing:-.038em}h1{font-size:clamp(2.5rem,5.1vw,5rem);font-weight:820}h2{font-size:clamp(1.95rem,3.2vw,2.7rem);font-weight:790}h3{font-size:1.17rem;letter-spacing:-.02em}p{color:var(--ink-soft)}.container{width:min(calc(100% - 48px),var(--content));margin-inline:auto}.narrow{max-width:780px}.screen-reader-text{position:absolute;clip:rect(1px,1px,1px,1px);clip-path:inset(50%);height:1px;overflow:hidden;width:1px;white-space:nowrap}.screen-reader-text:focus{position:fixed;z-index:9999;top:12px;left:12px;clip:auto;clip-path:none;width:auto;height:auto;padding:12px;background:white}.eyebrow{display:inline-flex;align-items:center;gap:9px;font-size:.71rem;font-weight:800;letter-spacing:.15em;text-transform:uppercase;color:var(--teal)}.eyebrow:before{content:'';width:8px;height:8px;border-radius:50%;background:var(--teal-bright)}.muted{color:var(--ink-soft)}.caption{font-size:.76rem;color:var(--ink-soft)}.btn{display:inline-flex;align-items:center;justify-content:center;gap:10px;border-radius:12px;border:1px solid transparent;font-weight:770;font-size:.93rem;min-height:46px;padding:12px 19px;transition:transform .15s,background .15s,box-shadow .15s;text-decoration:none}.btn:hover{text-decoration:none;transform:translateY(-1px)}.btn-primary{background:var(--teal);color:#fff;box-shadow:0 8px 20px rgba(0,108,103,.16)}.btn-primary:hover{background:#005853;color:white}.btn-subtle{background:white;border-color:var(--line);color:var(--ink)}.btn-subtle:hover{border-color:var(--teal);color:var(--teal)}.btn-small{min-height:37px;padding:8px 14px;font-size:.83rem}.text-link{font-weight:800;display:inline-flex;align-items:center;gap:8px}
/* Global navigation */
.announcement{background:var(--ink);color:#e5f8f5;text-align:center;padding:8px 20px;font-size:.77rem;letter-spacing:.01em}.announcement strong{font-weight:800;color:#c4e7d9}.site-header{position:sticky;top:0;z-index:100;background:rgba(255,255,255,.96);border-bottom:1px solid var(--line);backdrop-filter:blur(16px)}.header-inner{height:76px;display:flex;align-items:center;justify-content:space-between;gap:20px}.brand{display:flex;align-items:center;gap:12px;color:var(--ink);min-width:0;text-decoration:none}.brand:hover{text-decoration:none}.brand-mark{display:grid;place-items:center;background:var(--ink);color:#fff;width:41px;height:41px;border-radius:12px;flex-shrink:0}.brand-mark svg{width:27px;height:27px}.brand-type{display:block;font-weight:900;letter-spacing:-.048em;font-size:1.14rem;white-space:nowrap;line-height:1.05}.brand-type small{display:block;font-size:.54rem;font-weight:800;text-transform:uppercase;letter-spacing:.16em;color:var(--teal);margin-top:5px}.nav-wrap{display:flex;align-items:center;gap:26px}.site-nav{display:flex;align-items:center;gap:24px}.site-nav ul{display:flex;gap:24px;list-style:none;margin:0;padding:0}.site-nav a{font-size:.89rem;color:#465c64;font-weight:700}.site-nav a:hover,.site-nav .current-menu-item>a{color:var(--teal);text-decoration:none}.mobile-toggle{display:none;align-items:center;justify-content:center;flex-direction:column;gap:5px;width:42px;height:42px;background:#f3f8f7;border:1px solid var(--line);border-radius:11px}.mobile-toggle span{height:2px;width:19px;background:var(--ink);border-radius:2px}
/* Hero */
.hero{overflow:hidden;padding:73px 0 59px;background:radial-gradient(ellipse 600px 380px at 78% 28%,#deeeeb 0%,rgba(222,238,235,0) 72%),linear-gradient(180deg,#fbfdfc,var(--paper))}.hero-grid{display:grid;grid-template-columns:1.02fr .98fr;gap:74px;align-items:center}.hero-copy h1{max-width:650px;margin:21px 0 23px}.gradient-ink{color:var(--teal)}.hero-copy>p{font-size:1.13rem;line-height:1.72;max-width:570px;margin-bottom:28px}.hero-actions{display:flex;flex-wrap:wrap;gap:12px;align-items:center}.trust-row{margin-top:36px;display:flex;gap:25px;flex-wrap:wrap;color:#56717a;font-size:.8rem;font-weight:650}.trust-row span{display:flex;gap:9px;align-items:center}.trust-row i{display:inline-grid;place-items:center;width:20px;height:20px;font-style:normal;background:var(--teal-tint);border-radius:50%;color:var(--teal)}
/* Interactive scene */
.math-scene{position:relative;min-height:500px}.math-scene::before{content:'';position:absolute;inset:37px 12px 10px 5px;border-radius:38px;background:linear-gradient(145deg,#d6ece6,#dfeeea 58%,#f7eee6);transform:rotate(3deg)}.practice-visual{position:relative;z-index:2;background:white;border:1px solid rgba(13,85,78,.12);border-radius:23px;padding:23px;box-shadow:0 27px 75px rgba(8,56,61,.13);max-width:480px;margin:60px auto 0}.visual-head{display:flex;align-items:center;justify-content:space-between;padding-bottom:15px;border-bottom:1px solid #e7eff0;font-size:.78rem;color:var(--ink-soft);font-weight:700}.live-dot{display:inline-flex;align-items:center;gap:6px;color:var(--teal);font-weight:800}.live-dot:before{content:'';height:7px;width:7px;background:#16bd9d;border-radius:100%}.visual-chart{background:#f7fbfa;border:1px solid #e8f0ef;border-radius:17px;margin-top:20px;padding:13px 14px 5px}.visual-chart svg{height:auto;width:100%}.practice-question{padding-top:20px}.practice-question strong{display:block;font-weight:850;font-size:.98rem}.practice-question p{font-size:.85rem;line-height:1.56;margin:6px 0 13px}.practice-form{display:flex;align-items:stretch;gap:8px}.answer-input{display:block;min-width:0;width:100%;height:45px;border-radius:10px;border:1px solid #cbdde0;padding:0 14px;background:white;color:var(--ink)}.answer-input::placeholder{color:#8fa1aa}.practice-form .btn{flex-shrink:0}.feedback{min-height:20px;font-size:.81rem;font-weight:700;margin-top:9px}.feedback.good{color:#00745e}.feedback.bad{color:#a7432d}.floating-chip{position:absolute;z-index:3;display:flex;align-items:center;gap:9px;border-radius:13px;background:#fff;box-shadow:0 10px 26px rgba(15,45,54,.12);border:1px solid #e5eeed;padding:10px 14px;font-weight:800;font-size:.8rem}.chip-top{top:34px;right:-12px}.chip-bottom{bottom:7px;left:-10px}.floating-chip i{font-style:normal;color:#007b70}
/* Sections */
.section{padding:66px 0}.section-heading{display:flex;align-items:end;justify-content:space-between;gap:25px;margin-bottom:28px}.section-heading h2{margin:10px 0 8px}.section-heading p{margin:0;max-width:620px}.course-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:18px}.course-card{display:flex;flex-direction:column;overflow:hidden;border:1px solid var(--line);background:#fff;border-radius:19px;transition:box-shadow .2s,transform .2s}.course-card:hover{box-shadow:var(--shadow);transform:translateY(-3px)}.course-art{height:129px;position:relative;overflow:hidden;display:flex;align-items:center;justify-content:center}.course-art.teal{background:linear-gradient(125deg,#d6f3ed,#eefaf8)}.course-art.blue{background:linear-gradient(125deg,#d7eaf4,#eef7fa)}.course-art.orange{background:linear-gradient(125deg,#f9e6d7,#fff6ed)}.course-art.violet{background:linear-gradient(125deg,#eae3ff,#f6f3ff)}.course-art.green{background:linear-gradient(125deg,#dcebdc,#f5faf0)}.course-art.rose{background:linear-gradient(125deg,#f5dfdf,#fff4f1)}.course-art svg{width:100%;height:100%}.course-content{padding:19px 20px 21px;display:flex;flex-direction:column;flex:1}.card-meta{display:flex;justify-content:space-between;gap:8px;color:var(--teal);font-size:.72rem;font-weight:850;letter-spacing:.05em;text-transform:uppercase}.course-card h3{font-size:1.21rem;margin:12px 0 7px}.course-card p{font-size:.86rem;line-height:1.65;margin:0 0 18px;flex:1}.card-footer{display:flex;justify-content:space-between;border-top:1px solid var(--line);padding-top:13px;font-size:.8rem;font-weight:750;color:var(--ink-soft)}.card-footer a{color:var(--teal);font-weight:800}
/* Section panels */
.story-band{background:var(--ink);color:#fff;overflow:hidden}.story-grid{display:grid;grid-template-columns:.9fr 1.1fr;gap:65px;align-items:center}.story-band .eyebrow{color:#9ee5d4}.story-band .eyebrow:before{background:var(--coral)}.story-band h2{color:#fff;margin:12px 0 17px}.story-band p{color:#d1e2e6}.story-band .btn{background:#fff;color:var(--ink)}.story-art{position:relative;min-height:290px}.story-art svg{width:100%;height:100%;min-height:280px}.three-steps{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:20px}.step-card{background:white;border:1px solid var(--line);border-radius:18px;padding:25px}.step-number{width:38px;height:38px;border-radius:12px;display:grid;place-items:center;background:var(--teal-tint);font-weight:900;color:var(--teal);margin-bottom:16px}.step-card h3{margin-bottom:9px}.step-card p{margin:0;font-size:.9rem}.lab-section{background:#edf6f4}.lab-grid{display:grid;grid-template-columns:1fr 1fr;gap:36px;align-items:center}.lab-card{border:1px solid #cde3e0;background:white;border-radius:22px;padding:24px;box-shadow:var(--shadow)}.lab-card svg{height:225px;max-width:100%}.lab-head{display:flex;align-items:center;justify-content:space-between;gap:12px;margin-bottom:20px}.lab-head strong{font-weight:850}.range-row{display:grid;grid-template-columns:85px 1fr 36px;align-items:center;gap:10px;margin-top:15px;font-size:.83rem;color:var(--ink-soft)}input[type=range]{accent-color:var(--teal);width:100%}.lab-equation{font-weight:850;color:var(--teal);font-size:1.2rem}.data-note{font-size:.7rem;color:var(--ink-soft);margin:15px 0 0}.newsletter-less{background:var(--coral-tint);border:1px solid #f8dac8;padding:25px;border-radius:20px;display:flex;align-items:center;justify-content:space-between;gap:24px}.newsletter-less h3{margin:0 0 5px}.newsletter-less p{margin:0;font-size:.86rem}
/* Interior pages */
.page-hero{padding:54px 0 35px}.page-hero h1{font-size:clamp(2.3rem,4.5vw,3.9rem);margin:14px 0}.page-hero p{max-width:760px;margin:0;font-size:1.07rem}.breadcrumb{font-size:.83rem;color:var(--ink-soft);margin-bottom:12px}.breadcrumb a{color:var(--ink-soft)}.archive-grid{padding:10px 0 70px}.content-shell{display:grid;grid-template-columns:minmax(0,1fr) 272px;gap:34px;padding:20px 0 80px;align-items:start}.prose{background:#fff;border:1px solid var(--line);border-radius:19px;padding:clamp(23px,4vw,45px);font-size:1rem;line-height:1.84}.prose p{color:#3f5862}.prose h2{font-size:1.6rem;margin-top:32px}.prose h3{font-size:1.18rem;margin-top:25px}.prose ul,.prose ol{padding-left:24px}.prose blockquote{border-left:4px solid var(--teal);padding-left:19px;margin:20px 0;font-size:1.05rem}.prose code{font-size:.91em;background:#f0f4f5;border-radius:4px;padding:2px 5px}.prose img{height:auto}.prose a{text-decoration:underline}.sidebar-panel{position:sticky;top:102px;background:white;border:1px solid var(--line);border-radius:17px;padding:22px}.sidebar-panel h3{font-size:1rem;margin-bottom:12px}.outline-list{list-style:none;margin:0;padding:0}.outline-list li+li{border-top:1px solid #edf1f1}.outline-list a{display:block;padding:11px 0;font-size:.85rem;color:var(--ink-soft)}.outline-list a:hover,.outline-list .current a{color:var(--teal);font-weight:850;text-decoration:none}.lesson-info{display:flex;align-items:center;gap:10px;flex-wrap:wrap;margin:14px 0 20px}.pill{background:var(--teal-tint);color:var(--teal);padding:5px 10px;border-radius:50px;font-weight:850;font-size:.74rem}.lesson-pager{display:flex;justify-content:space-between;gap:12px;margin:25px 0 0}.empty-state{border:1px dashed #bad1ce;border-radius:18px;padding:30px;background:white}.empty-state p{margin-bottom:0}.course-detail-hero{padding:48px 0 34px}.single-meta{margin-top:19px;color:var(--ink-soft);font-size:.87rem}.section-title{font-size:1.4rem;margin:25px 0}.lesson-row{display:flex;align-items:center;justify-content:space-between;gap:15px;border:1px solid var(--line);border-radius:13px;padding:17px;margin-bottom:10px;background:white}.lesson-row small{display:block;color:var(--ink-soft);margin-top:3px}.lesson-row a{font-weight:850}.site-content{min-height:65vh}.search-form{display:flex;gap:8px}.search-form input{min-width:0;flex:1;border:1px solid var(--line);border-radius:10px;padding:10px 12px;background:white}
/* Footer */
.site-footer{background:#f0f6f4;border-top:1px solid #dce9e6;margin-top:0;padding:51px 0 25px}.footer-grid{display:grid;grid-template-columns:2fr 1fr 1fr;gap:55px}.site-footer p{max-width:430px;font-size:.9rem}.footer-links a{display:block;color:#4f6971;font-size:.86rem;margin:8px 0}.footer-links h3{font-size:.89rem}.footer-bottom{display:flex;justify-content:space-between;align-items:center;border-top:1px solid #d8e6e1;margin-top:35px;padding-top:20px;font-size:.77rem;color:#567077}
/* Plugin activities */
.slp-exercise{margin:27px 0;border:1px solid #bddfd8;border-radius:17px;background:#f7fcfa;padding:24px}.slp-exercise .eyebrow{margin-bottom:12px}.slp-exercise h3{font-size:1.16rem;margin-bottom:10px}.slp-exercise .slp-prompt{font-size:.96rem;color:#294d53}.slp-exercise-form{display:flex;align-items:center;gap:10px;flex-wrap:wrap}.slp-exercise-form label{font-weight:800;font-size:.84rem}.slp-exercise-form input{max-width:240px;flex:1;min-width:110px;border:1px solid #bdd2d0;border-radius:9px;height:44px;padding:10px 12px}.slp-exercise-help{border:0;background:none;color:var(--teal);font-size:.83rem;font-weight:750;text-decoration:underline;padding:8px 0}.slp-exercise .slp-hint,.slp-exercise .slp-solution{background:white;border:1px solid var(--line);padding:13px 15px;border-radius:9px;margin-top:12px;font-size:.85rem}.slp-exercise .slp-status{font-size:.86rem;font-weight:780;min-height:24px;margin-top:12px}.slp-exercise .slp-status[data-result=correct]{color:#00745e}.slp-exercise .slp-status[data-result=incorrect]{color:#a7432d}.slp-exercise .slp-status[data-result=invalid]{color:#936d21}.slp-exercise .slp-unit{font-size:.85rem;color:var(--ink-soft)}
@media(max-width:1020px){.hero-grid{gap:28px}.course-grid{grid-template-columns:repeat(2,minmax(0,1fr))}.hero h1{font-size:clamp(2.4rem,5vw,3.8rem)}.story-grid{gap:20px}.floating-chip.chip-top{right:0}.math-scene{min-height:430px}.practice-visual{margin-top:40px}.nav-wrap{gap:14px}.site-nav{gap:15px}}
@media(max-width:780px){.container{width:min(calc(100% - 36px),var(--content))}.header-inner{height:69px}.mobile-toggle{display:flex}.nav-wrap{gap:11px}.site-nav{position:absolute;left:0;right:0;top:69px;display:none;background:#fff;border-bottom:1px solid var(--line);box-shadow:0 16px 25px rgba(15,45,54,.07);padding:10px 22px 22px;flex-direction:column;align-items:stretch;gap:0}.site-nav.open{display:flex}.site-nav ul{display:flex;flex-direction:column;align-items:stretch;gap:0;width:100%}.site-nav a{display:block;padding:12px 4px}.nav-wrap>.btn{display:none}.hero{padding:40px 0}.hero-grid,.story-grid,.lab-grid,.content-shell{grid-template-columns:1fr}.hero-copy h1{max-width:550px}.hero-copy>p{font-size:1rem}.math-scene{min-height:405px}.practice-visual{max-width:530px;margin:27px auto 0}.story-grid{gap:7px}.story-art{min-height:220px}.section{padding:46px 0}.section-heading{align-items:start;flex-direction:column}.three-steps{grid-template-columns:1fr}.footer-grid{grid-template-columns:1fr 1fr;gap:25px}.footer-grid>div:first-child{grid-column:span 2}.sidebar-panel{position:static;order:-1}.page-hero{padding-top:36px}.course-detail-hero{padding-top:34px}}
@media(max-width:520px){.announcement{font-size:.68rem}.brand-type{font-size:1rem}.brand-type small{font-size:.47rem}.hero-copy h1{font-size:2.55rem}.trust-row{gap:11px}.hero-actions .btn{width:100%}.course-grid{grid-template-columns:1fr}.math-scene{min-height:393px}.practice-visual{padding:16px}.floating-chip{font-size:.66rem;padding:7px 9px}.chip-top{top:10px}.chip-bottom{bottom:0}.section-heading h2{font-size:1.87rem}.story-art svg{min-height:190px}.newsletter-less{flex-direction:column;align-items:start}.footer-grid{grid-template-columns:1fr}.footer-grid>div:first-child{grid-column:span 1}.footer-bottom{flex-direction:column;align-items:start;gap:5px}.practice-form{flex-wrap:wrap}.practice-form .btn{flex:1}.lesson-pager{flex-direction:column}}
@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}*,*:before,*:after{transition-duration:.01ms!important;animation-duration:.01ms!important}}

/* V1.1 — focused, interactive lesson workspace */
.slp-lesson-page{background:#f6f9f8;padding-bottom:5rem}
.slp-lesson-topbar{display:flex;align-items:center;justify-content:space-between;gap:1rem;padding-top:26px}
.slp-lesson-topbar .breadcrumb{margin:0;display:flex;flex-wrap:wrap;gap:.6rem;align-items:center;color:#567078;font-size:.81rem}
.slp-focus-toggle{padding:.48rem .85rem;border-radius:10px;border:1px solid #d0e2df;background:#fff;color:#275458;font-size:.8rem;font-weight:850}
.slp-focus-toggle[aria-pressed=true]{background:#e0f3ee;border-color:#70c8b7}
.slp-lesson-heading{display:grid;grid-template-columns:minmax(0,1.35fr) minmax(250px,.65fr);gap:2.7rem;align-items:center;padding-top:40px;padding-bottom:40px}
.slp-small-caps{display:block;letter-spacing:.11em;font-size:.7rem;color:#197c70;text-transform:uppercase;font-weight:900}
.slp-lesson-heading h1{font-size:clamp(2.5rem,4.8vw,4.35rem);margin:12px 0 15px;max-width:730px;line-height:1.07}
.slp-lesson-heading p{font-size:1.07rem;line-height:1.7;max-width:680px;margin-bottom:25px}
.slp-lesson-chips{display:flex;align-items:center;flex-wrap:wrap;gap:9px}
.slp-lesson-chips span{display:inline-flex;align-items:center;font-size:.75rem;font-weight:780;color:#36585f;background:white;border:1px solid #e0e9e8;border-radius:40px;padding:7px 12px}
.slp-lesson-ornament{position:relative;background:linear-gradient(135deg,#e0f5ee,#f0f5f0 64%,#fff3e9);border:1px solid #d8e8e3;border-radius:22px;padding:22px 24px 16px;min-height:214px}
.slp-lesson-ornament-top{letter-spacing:.14em;font-weight:850;color:#57988d;font-size:.66rem}
.slp-lesson-ornament svg{width:100%;height:auto;max-height:167px}
.slp-lesson-ornament-bottom{display:flex;gap:8px;align-items:center;color:#42666a;font-size:.73rem;font-weight:700}
.slp-lesson-ornament-bottom strong{font-size:1.3rem;color:#08786f}
.slp-reading-layout{display:grid;grid-template-columns:minmax(0,1fr) 290px;gap:32px;align-items:start}
.slp-reading-main{min-width:0}
.slp-reading-label{display:flex;align-items:center;gap:8px;text-transform:uppercase;letter-spacing:.11em;font-size:.68rem;color:#628083;font-weight:900;margin:0 0 13px 6px}
.slp-reading-label-dot{height:8px;width:8px;border-radius:50%;background:#24ab94}
.slp-reading-main .slp-lesson-prose{padding:clamp(24px,4.5vw,54px);border-radius:20px;box-shadow:0 20px 65px rgba(16,53,53,.04);font-size:1.025rem;line-height:1.82}
.slp-reading-main .slp-lesson-prose h2{font-size:clamp(1.6rem,2.4vw,2rem);margin:12px 0 20px;letter-spacing:-.035em}
.slp-reading-main .slp-lesson-prose p{margin-bottom:1.3rem}
.slp-lesson-kicker{font-size:.7rem;font-weight:900;letter-spacing:.15em;text-transform:uppercase;color:#008a7b;margin:2.4rem 0 .6rem}
.slp-lesson-kicker:first-child{margin-top:0}
.slp-equation-card{padding:1.7rem 1.9rem;background:#eaf6f2;border:1px solid #d6eae2;border-radius:16px;margin:1.6rem 0 2rem}
.slp-equation-card span{display:block;font-size:.79rem;letter-spacing:.02em;font-weight:850;color:#47746e}
.slp-equation-card strong{display:block;color:#007b70;font-size:clamp(1.6rem,3.2vw,2.6rem);font-weight:900;margin:5px 0 8px;letter-spacing:-.05em;line-height:1.2}
.slp-equation-card p,.slp-takeaway p{font-size:.88rem;color:#45646a;margin:0!important}
.slp-reading-main .slp-lesson-prose .slp-numberline{margin:1.4rem 0}
.slp-data-disclaimer{font-size:.76rem!important;color:#687d81!important;margin:-.5rem 0 1.8rem!important}
.slp-takeaway{margin:1.9rem 0 0;border-left:4px solid #e58b64;background:#fff8f2;padding:1.25rem 1.45rem;border-radius:0 14px 14px 0}
.slp-takeaway strong{display:block;margin-bottom:.4rem;color:#8e563d;font-size:.88rem}
.slp-lesson-aside{display:flex;flex-direction:column;gap:14px;position:sticky;top:104px}
.slp-aside-card{border:1px solid #dfe9e8;border-radius:17px;background:#fff;padding:22px;box-shadow:0 8px 25px rgba(20,62,65,.025)}
.slp-aside-card h2{font-size:1.13rem;line-height:1.35;margin:9px 0 18px;letter-spacing:-.02em}
.slp-course-progress-label{display:flex;justify-content:space-between;gap:8px;font-size:.73rem;color:#73898a;font-weight:750;margin-bottom:8px}
.slp-course-progress-track{height:6px;background:#edf3f2;border-radius:99px;overflow:hidden}
.slp-course-progress-track span{height:100%;display:block;background:#17a591;border-radius:99px}
.slp-lesson-outline{list-style:none;margin:15px 0 0;padding:0;counter-reset:none}
.slp-lesson-outline li+li{border-top:1px solid #eff3f2}
.slp-lesson-outline a{padding:13px 7px;display:flex;align-items:start;gap:12px;border-radius:9px;color:#5f7479;font-size:.82rem;font-weight:750;line-height:1.46}
.slp-lesson-outline a:hover{text-decoration:none;color:#006c67;background:#f1f7f5}
.slp-outline-number{font-size:.7rem;font-weight:900;color:#9aabae;margin-top:1px}
.slp-lesson-outline .current a{background:#e8f6f1;color:#007467;font-weight:900}
.slp-lesson-outline .current .slp-outline-number{color:#007467}
.slp-aside-quick-links a{display:flex;padding:9px 0;gap:6px;color:#365e64;font-size:.84rem;font-weight:750;border-bottom:1px solid #eef2f2}
.slp-aside-quick-links a:before{content:'↗';color:#008575}
.slp-aside-quick-links p{font-size:.77rem;line-height:1.65;margin:13px 0 0}
.slp-lesson-completion{margin-top:19px;padding:25px 28px;border:1px solid #d4e7df;border-radius:18px;background:linear-gradient(120deg,#eff9f5,#fff);display:flex;align-items:center;justify-content:space-between;gap:20px}
.slp-lesson-completion h2{font-size:1.35rem;margin:5px 0 7px}
.slp-lesson-completion p{font-size:.85rem;max-width:410px;margin:0}
.slp-complete-action{display:flex;align-items:center;gap:8px;flex-direction:column;max-width:250px;text-align:center}
.slp-complete-lesson{border:0;border-radius:10px;background:#006c67;color:#fff;min-height:46px;font-size:.88rem;font-weight:850;padding:.7rem 1.25rem}
.slp-complete-lesson[aria-pressed=true]{background:#e2f4ee;color:#006c67;outline:1px solid #8dcdbf}
.slp-complete-status{color:#70898a;font-size:.71rem;line-height:1.3}
.slp-reading-main>.lesson-pager{margin-top:20px}
.slp-focus-mode .slp-lesson-aside,.slp-focus-mode .slp-lesson-ornament,.slp-focus-mode .announcement{display:none}
.slp-focus-mode .slp-reading-layout{grid-template-columns:minmax(0,850px);justify-content:center}
.slp-focus-mode .slp-lesson-heading{grid-template-columns:minmax(0,850px);justify-content:center}
.slp-focus-mode .slp-reading-main .slp-lesson-prose{padding:clamp(24px,5vw,65px)}
@media(max-width:980px){.slp-lesson-heading{grid-template-columns:1fr}.slp-lesson-ornament{display:none}.slp-reading-layout{grid-template-columns:minmax(0,1fr) 235px;gap:18px}.slp-aside-card{padding:16px}}
@media(max-width:760px){.slp-lesson-heading{padding-top:26px;padding-bottom:27px}.slp-reading-layout{grid-template-columns:1fr}.slp-lesson-aside{position:static;order:-1}.slp-lesson-aside .slp-aside-quick-links{display:none}.slp-aside-card .slp-lesson-outline{display:none}.slp-aside-card{padding:14px 17px}.slp-aside-card h2{margin-bottom:8px}.slp-reading-main .slp-lesson-prose{padding:25px}.slp-lesson-completion{flex-direction:column;align-items:start}.slp-complete-action{align-items:start;text-align:left;max-width:none}.slp-focus-mode .slp-lesson-aside{display:none}}
@media(max-width:480px){.slp-lesson-topbar{padding-top:17px}.slp-lesson-heading h1{font-size:2.42rem}.slp-lesson-heading p{font-size:.94rem}.slp-reading-main .slp-lesson-prose{padding:21px 18px}.slp-equation-card{padding:1.25rem}.slp-lesson-completion{padding:22px}.slp-lesson-chips{gap:6px}.slp-lesson-chips span{font-size:.69rem}}