/* =====================================================================
   Courses catalog — editorial reskin  ·  "The Course Atlas"
   Pairs with editorial-theme.css. Cards are JS-rendered (coursesData +
   generateCourseCard) — this targets the generated classes; JS untouched.
   ===================================================================== */

/* retire the purple particle canvas (graph-paper backdrop instead) */
#background-canvas{display:none !important}

/* ---------- catalog frame ---------- */
.course-hero,.course-content,.controls-section,.results-bar,.courses-grid,
.no-results,.why-choose-section,.faq-section,.browse-all-seo{
  width:100%;max-width:1200px;margin-inline:auto;padding-inline:1.5rem;
}

/* ---------- HERO ---------- */
.course-hero{text-align:center;padding-top:clamp(3rem,7vw,5rem);padding-bottom:clamp(1.5rem,3vw,2.5rem);position:relative}
.course-hero h1{font-size:clamp(2.4rem,5.5vw,4rem);line-height:1.05;letter-spacing:-.03em}
.course-hero h1::before{content:"Coding + Maths · Ages 6–65";display:block;font-family:var(--font-mono);font-size:.72rem;letter-spacing:.18em;text-transform:uppercase;color:var(--amber);font-weight:600;margin-bottom:1.1rem}
.hero-subtitle{color:var(--muted);font-size:1.12rem;line-height:1.7;max-width:700px;margin:1.3rem auto 0}
.hero-stats{display:flex;flex-wrap:wrap;justify-content:center;gap:clamp(1.6rem,6vw,4rem);margin-top:2.4rem}
.stat-item{text-align:center}
.stat-number{font-family:var(--font-display);font-weight:600;font-size:clamp(2rem,4vw,2.8rem);color:var(--amber);line-height:1}
.stat-label{color:var(--muted);font-size:.76rem;margin-top:.5rem;font-family:var(--font-mono);letter-spacing:.06em;text-transform:uppercase}

/* ---------- LEARN / FILTER PANEL ---------- */
.course-content{padding-top:clamp(1rem,3vw,1.8rem)}
.learn-section{background:var(--surface);border:1px solid var(--line);border-radius:20px;padding:clamp(1.6rem,4vw,2.6rem);max-width:980px;margin:0 auto;box-shadow:var(--shadow-sm)}
.learn-heading{text-align:center;margin-bottom:1.5rem}
.learn-heading h2{font-size:clamp(1.5rem,3vw,2rem)}
.learn-heading p{color:var(--muted);margin-top:.6rem;font-size:.98rem}

/* coding/maths toggle (segmented control) */
.course-toggle-container{display:flex;justify-content:center;margin-bottom:1.3rem}
.toggle-input{position:absolute;opacity:0;width:0;height:0;pointer-events:none}
.toggle-track{position:relative;display:inline-grid;grid-template-columns:1fr 1fr;background:var(--paper-2);border:1px solid var(--line);border-radius:12px;padding:4px}
.toggle-slider{position:absolute;top:4px;bottom:4px;left:4px;width:calc(50% - 4px);background:var(--ink);border-radius:9px;transition:transform .28s cubic-bezier(.4,0,.2,1),background .28s}
#maths-toggle:checked~.toggle-track .toggle-slider{transform:translateX(100%);background:var(--amber)}
.toggle-label{position:relative;z-index:1;display:flex;align-items:center;justify-content:center;gap:.45rem;padding:.6rem 1.9rem;cursor:pointer;font-weight:600;font-size:.95rem;color:var(--muted);transition:color .25s;user-select:none}
.toggle-icon{font-size:1rem;filter:grayscale(.1)}
#coding-toggle:checked~.toggle-track .coding-label{color:var(--paper)}
#maths-toggle:checked~.toggle-track .maths-label{color:#fff}

/* level divider */
.level-divider{display:flex;align-items:center;gap:1rem;margin:1.3rem 0}
.level-divider-line{flex:1;height:1px;background:var(--line)}
.level-divider-text{font-family:var(--font-mono);font-size:.72rem;letter-spacing:.1em;text-transform:uppercase;color:var(--muted)}

/* level sub-tabs */
.sub-tabs{display:none;flex-wrap:wrap;justify-content:center;gap:.6rem}
.sub-tabs.active{display:flex}
.sub-tab{display:flex;flex-direction:column;align-items:center;gap:.1rem;background:var(--surface);border:1px solid var(--line);border-radius:12px;padding:.6rem 1.1rem;cursor:pointer;transition:background .2s,border-color .2s;min-width:94px}
.sub-tab:hover{border-color:var(--amber);background:var(--amber-tint)}
.sub-tab.active{background:var(--ink);border-color:var(--ink)}
.sub-tab .st-name{font-weight:600;font-size:.9rem;color:var(--ink)}
.sub-tab .st-age{font-size:.7rem;color:var(--muted);font-family:var(--font-mono)}
.sub-tab.active .st-name{color:var(--paper)}
.sub-tab.active .st-age{color:rgba(251,248,242,.65)}

/* ---------- CONTROLS (sort + view) ---------- */
.controls-section{display:flex;align-items:center;justify-content:space-between;gap:1rem;margin-top:2.4rem;flex-wrap:wrap}
.sort-dropdown{position:relative}
.sort-btn{display:inline-flex;align-items:center;gap:.5rem;background:var(--surface);border:1px solid var(--line);border-radius:10px;padding:.6rem 1rem;font-size:.9rem;font-weight:500;color:var(--ink);cursor:pointer;transition:border-color .2s}
.sort-btn:hover{border-color:var(--amber)}
.sort-btn span{color:var(--amber)}
.sort-menu{position:absolute;top:calc(100% + 6px);left:0;min-width:175px;background:var(--surface);border:1px solid var(--line);border-radius:12px;box-shadow:var(--shadow-md);padding:.4rem;opacity:0;visibility:hidden;transform:translateY(8px);transition:opacity .2s,visibility .2s,transform .2s;z-index:50}
.sort-menu.active,.sort-menu.show,.sort-menu.open,.sort-dropdown.active .sort-menu,.sort-dropdown.open .sort-menu{opacity:1;visibility:visible;transform:none}
.sort-option{padding:.55rem .7rem;border-radius:8px;font-size:.88rem;cursor:pointer;color:var(--ink-soft)}
.sort-option:hover,.sort-option.active{background:var(--amber-tint);color:var(--amber)}
.view-toggle{display:flex;gap:.25rem;background:var(--surface);border:1px solid var(--line);border-radius:10px;padding:3px}
.view-btn{width:36px;height:32px;border:none;background:none;border-radius:8px;color:var(--muted);cursor:pointer;display:flex;align-items:center;justify-content:center;transition:background .2s,color .2s}
.view-btn:hover{color:var(--ink)}
.view-btn.active{background:var(--ink);color:var(--paper)}

/* ---------- RESULTS BAR (count + search) ---------- */
.results-bar{display:flex;align-items:center;justify-content:space-between;gap:1rem;margin-top:1.5rem;flex-wrap:wrap}
.results-count{color:var(--muted);font-size:.92rem;font-family:var(--font-mono)}
.results-count strong{color:var(--ink);font-weight:700}
.compact-search{display:flex;align-items:center;gap:.5rem;background:var(--surface);border:1px solid var(--line);border-radius:11px;padding:.5rem .9rem;min-width:min(280px,100%);transition:border-color .2s,box-shadow .2s}
.compact-search:focus-within{border-color:var(--amber);box-shadow:0 0 0 3px var(--amber-tint-2)}
.compact-search .search-icon{width:18px;height:18px;color:var(--muted);flex-shrink:0}
body.editorial .compact-search input{border:none;background:none;outline:none;box-shadow:none;font-size:.92rem;color:var(--ink);width:100%;padding:0}
.compact-search input::placeholder{color:#a59c90}
#searchClearBtn{background:none;border:none;cursor:pointer;color:var(--muted);width:20px;height:20px;display:flex;align-items:center;justify-content:center;padding:0;flex-shrink:0}
#searchClearBtn svg{width:16px;height:16px}

/* ---------- COURSE CARDS (JS-generated) ---------- */
.courses-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(280px,1fr));gap:1.5rem;margin-top:1.8rem}
.courses-grid.list-view{grid-template-columns:1fr;max-width:820px}
.course-card-minimal{position:relative;display:flex;flex-direction:column;background:var(--surface);border:1px solid var(--line);border-radius:16px;overflow:hidden;cursor:pointer;transition:transform .25s,box-shadow .25s,border-color .25s}
.course-card-minimal::before{content:"";display:block;height:3px;background:var(--amber);transform:scaleX(0);transform-origin:left;transition:transform .3s}
.course-card-minimal:hover{transform:translateY(-5px);box-shadow:var(--shadow-md);border-color:rgba(180,83,9,.4)}
.course-card-minimal:hover::before{transform:scaleX(1)}
/* thumbnail — uniform 16:9 frame, cover-cropped so every card aligns */
.course-image-container{display:block;aspect-ratio:16/9;overflow:hidden;background:var(--paper-2);border-bottom:1px solid var(--line)}
.course-image{width:100%;height:100%;object-fit:cover;display:block;transition:transform .4s ease}
.course-card-minimal:hover .course-image{transform:scale(1.04)}
.course-content-minimal{padding:1.4rem 1.5rem 1.5rem;display:flex;flex-direction:column;flex:1;text-align:center}
.course-title-minimal{font-family:var(--font-display);font-weight:600;font-size:1.2rem;line-height:1.22;margin-bottom:.5rem;color:var(--ink)}
.course-description-minimal{color:var(--muted);font-size:.9rem;line-height:1.6;flex:1;display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden}
.course-card-price-simple{display:flex;align-items:baseline;justify-content:center;gap:.45rem;margin:1.2rem 0 1rem}
.course-card-price-simple .price-amount{font-family:var(--font-display);font-weight:600;font-size:1.5rem;color:var(--ink)}
.course-card-price-simple .price-starts{font-family:var(--font-mono);font-size:.7rem;color:var(--muted);text-transform:uppercase;letter-spacing:.05em}
.start-learning-btn{display:inline-flex;align-items:center;justify-content:center;gap:.4rem;width:100%;padding:.75rem 1rem;border-radius:10px;border:1px solid var(--ink);background:var(--ink);color:var(--paper);font-family:var(--font-body);font-weight:600;font-size:.9rem;cursor:pointer;transition:background .2s,border-color .2s,color .2s;margin-top:auto}
.start-learning-btn:hover{background:var(--amber);border-color:var(--amber);color:#fff}
.start-learning-btn .btn-arrow{width:16px;height:16px;transition:transform .2s}
.start-learning-btn:hover .btn-arrow{transform:translateX(3px)}

/* hackathon cards — amber-accented, on-brand */
.course-card-minimal.hackathon-card{border:1.5px solid var(--amber);box-shadow:0 24px 50px -30px rgba(180,83,9,.5)}
.hackathon-card::before{display:none}
.hackathon-ribbon{display:flex;align-items:center;justify-content:center;gap:.5rem;background:var(--amber);color:#fff;font-family:var(--font-mono);font-size:.72rem;font-weight:700;letter-spacing:.04em;padding:.5rem 1rem}
.hackathon-ribbon-dot{width:8px;height:8px;border-radius:50%;background:#fff;animation:hkpulse 1.5s ease-in-out infinite}
@keyframes hkpulse{0%,100%{opacity:1}50%{opacity:.35}}
.hackathon-card .course-title-minimal{color:var(--amber-deep)}
.hackathon-pricing{display:flex;flex-direction:column;gap:.55rem;margin:1.1rem 0}
.hackathon-pricing-row{display:flex;align-items:center;justify-content:center;gap:.6rem;font-size:.85rem;color:var(--ink-soft);text-align:left}
.hackathon-pricing-tag{font-family:var(--font-mono);font-weight:700;font-size:.72rem;background:var(--amber-tint);color:var(--amber);border-radius:6px;padding:.22rem .55rem;flex-shrink:0}
.hackathon-pricing-tag-prep{background:var(--paper-2);color:var(--ink-soft)}
.hackathon-pricing-text strong{color:var(--ink)}
.hackathon-btn-row{display:grid;grid-template-columns:1fr 1fr;gap:.6rem;margin-top:auto}
.hackathon-btn-row .start-learning-btn{width:100%;margin-top:0}
.hx-reg-btn{background:var(--amber);border-color:var(--amber);color:#fff}
.hx-reg-btn:hover{background:var(--amber-deep);border-color:var(--amber-deep);color:#fff}
.hx-prep-btn{background:transparent;border-color:var(--ink);color:var(--ink)}
.hx-prep-btn:hover{background:var(--ink);border-color:var(--ink);color:var(--paper)}

/* ---------- NO RESULTS ---------- */
.no-results{display:none;text-align:center;padding:3rem 1.5rem}
.no-results-content{max-width:480px;margin:0 auto}
.no-results-icon{width:60px;height:60px;border-radius:50%;background:var(--amber-tint);color:var(--amber);display:flex;align-items:center;justify-content:center;margin:0 auto 1.2rem}
.no-results-icon svg{width:30px;height:30px}
.no-results-title{font-size:1.4rem;margin-bottom:.5rem}
.no-results-description{color:var(--muted);margin-bottom:1.4rem}
.no-results-actions{display:flex;gap:.8rem;justify-content:center;flex-wrap:wrap}
.clear-search-btn,.browse-all-btn{padding:.7rem 1.4rem;border-radius:10px;font-weight:600;cursor:pointer;border:1px solid var(--ink);font-size:.9rem}
.clear-search-btn{background:transparent;color:var(--ink)}
.clear-search-btn:hover{background:var(--ink);color:var(--paper)}
.browse-all-btn{background:var(--amber);border-color:var(--amber);color:#fff}
.browse-all-btn:hover{background:var(--amber-deep)}
.popular-suggestions{margin-top:1.6rem}
.popular-suggestions h4{font-family:var(--font-mono);font-size:.74rem;text-transform:uppercase;letter-spacing:.08em;color:var(--muted);margin-bottom:.7rem}
.suggestion-tags{display:flex;flex-wrap:wrap;gap:.5rem;justify-content:center}
.suggestion-tags a,.suggestion-tags button,.suggestion-tags span{background:var(--surface);border:1px solid var(--line);color:var(--ink-soft);border-radius:40px;padding:.4rem .9rem;font-size:.82rem;text-decoration:none;cursor:pointer}
.suggestion-tags a:hover,.suggestion-tags button:hover{border-color:var(--amber);color:var(--amber)}

/* ---------- WHY CHOOSE ---------- */
.why-choose-section{text-align:center;padding-top:clamp(3rem,6vw,4.5rem);padding-bottom:clamp(2rem,4vw,3rem)}
.why-choose-section>h2{font-size:clamp(1.9rem,3.6vw,2.8rem)}
.why-choose-section>h2::after{content:"";display:block;width:48px;height:3px;border-radius:3px;background:var(--amber);margin:1rem auto 0}
.why-choose-subtitle{color:var(--muted);max-width:620px;margin:1rem auto 2.4rem;font-size:1.05rem;line-height:1.7}
.why-choose-section .features-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(250px,1fr));gap:1.4rem;text-align:center}
.feature-card{background:var(--surface);border:1px solid var(--line);border-radius:16px;padding:1.9rem 1.6rem}
.feature-card .feature-icon{width:48px;height:48px;border-radius:12px;background:var(--amber-tint);color:var(--amber);display:flex;align-items:center;justify-content:center;margin:0 auto 1.1rem}
.feature-card .feature-icon svg{width:24px;height:24px;stroke:currentColor;fill:none}
.feature-card-text h3{font-size:1.1rem;margin-bottom:.45rem}
.feature-card-text p{color:var(--muted);font-size:.9rem;line-height:1.6}

/* ---------- FAQ (open state = .active; FAQ-click only) ---------- */
.faq-section{max-width:820px;padding-top:clamp(2rem,4vw,3rem);padding-bottom:clamp(3rem,6vw,4.5rem)}
.faq-section>h2{text-align:center;font-size:clamp(1.9rem,3.6vw,2.8rem)}
.faq-section>h2::after{content:"";display:block;width:48px;height:3px;border-radius:3px;background:var(--amber);margin:1rem auto 0}
.faq-subtitle{text-align:center;color:var(--muted);margin:1rem auto 2.2rem;max-width:560px}
.faq-item{background:var(--surface);border:1px solid var(--line);border-radius:12px;overflow:hidden;margin-bottom:.8rem;transition:border-color .2s}
.faq-item.active{border-color:rgba(180,83,9,.4)}
.faq-question{width:100%;display:flex;align-items:center;justify-content:space-between;gap:1rem;background:none;border:none;cursor:pointer;text-align:left;padding:1.2rem 1.4rem;font-family:var(--font-display);font-weight:600;font-size:1.05rem;color:var(--ink)}
.faq-icon{width:20px;height:20px;flex-shrink:0;stroke:var(--amber);fill:none;stroke-width:2.5;transition:transform .25s}
.faq-item.active .faq-icon{transform:rotate(180deg)}
.faq-answer{max-height:0;overflow:hidden;transition:max-height .3s ease}
.faq-item.active .faq-answer{max-height:520px}
.faq-answer p{padding:0 1.4rem 1.3rem;color:var(--muted);line-height:1.7;font-size:.95rem;margin:0}

/* ---------- BROWSE ALL (SEO chips; inline styles overridden) ---------- */
.browse-all-seo{padding-top:clamp(2rem,4vw,3rem);padding-bottom:clamp(3rem,6vw,4rem)}
.browse-all-seo h2{text-align:center;font-size:clamp(1.6rem,3vw,2.2rem) !important;color:var(--ink) !important;font-weight:600 !important;margin-bottom:.5rem !important}
.bas-sub{text-align:center;color:var(--muted) !important;margin-bottom:2.4rem !important;font-size:.98rem !important}
.browse-all-seo h3{color:var(--ink) !important;font-family:var(--font-mono) !important;font-size:.8rem !important;font-weight:600 !important;text-transform:uppercase;letter-spacing:.08em;margin:0 0 .9rem !important;text-align:center}
.browse-all-seo h3::after{content:"";display:block;width:34px;height:2px;border-radius:2px;background:var(--amber);margin:.5rem auto 0}
.browse-all-seo>div{justify-content:center}
.browse-all-seo a{background:var(--surface) !important;border:1px solid var(--line) !important;color:var(--ink-soft) !important;padding:.5rem 1rem !important;border-radius:40px !important;font-size:.84rem !important;transition:border-color .2s,color .2s,background .2s}
.browse-all-seo a:hover{border-color:var(--amber) !important;color:var(--amber) !important;background:var(--amber-tint) !important}

/* ---------- "COMING SOON" toast ---------- */
.coming-soon-toast{position:fixed;bottom:24px;left:50%;transform:translateX(-50%) translateY(20px);opacity:0;background:var(--ink);color:var(--paper);border-radius:12px;padding:.9rem 1.2rem;box-shadow:var(--shadow-md);z-index:99999;transition:opacity .3s,transform .3s;max-width:340px}
.coming-soon-toast.show{opacity:1;transform:translateX(-50%) translateY(0)}
.coming-soon-toast .toast-content{display:flex;align-items:center;gap:.7rem}
.coming-soon-toast .toast-icon{width:24px;height:24px;color:var(--amber);flex-shrink:0}
.coming-soon-toast strong{font-size:.9rem}
.coming-soon-toast p{font-size:.8rem;color:rgba(251,248,242,.7);margin:0}

/* ---------- responsive ---------- */
@media (max-width:560px){
  .course-toggle-container .toggle-label{padding:.6rem 1.3rem}
  .controls-section{justify-content:space-between}
  .hackathon-btn-row{grid-template-columns:1fr}
}