:root{--sphn-red:#a31322;--sphn-red2:#c8293d;--sphn-pink:#fff3f4;--sphn-ink:#182235;--sphn-muted:#687386;--sphn-line:#e8e6e4;--sphn-bg:#fff;--sphn-soft:#faf8f6;--sphn-shadow:0 12px 34px rgba(42,23,26,.08)}
*{box-sizing:border-box}.sphn-body{margin:0;background:#fff;color:var(--sphn-ink);font-family:-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,"Helvetica Neue",Arial,sans-serif;line-height:1.55}.sphn-site a{color:inherit;text-decoration:none}.sphn-site img{max-width:100%;display:block}.sphn-container{width:min(1180px,calc(100% - 40px));margin:0 auto}.sphn-header{height:76px;border-bottom:1px solid #eee;background:rgba(255,255,255,.97);position:sticky;top:0;z-index:50;backdrop-filter:blur(10px)}.sphn-header-inner{height:100%;display:flex;align-items:center;justify-content:space-between;gap:28px}.sphn-brand{display:flex;align-items:center;gap:12px;min-width:250px}.sphn-brand img{width:44px;height:44px}.sphn-brand span{display:flex;flex-direction:column;line-height:1.1}.sphn-brand strong{font-family:Georgia,"Times New Roman",serif;color:var(--sphn-red);font-size:20px;letter-spacing:.5px}.sphn-brand small{font-size:11px;color:#8a8f98;margin-top:5px}.sphn-nav{display:flex;align-items:center;gap:26px;font-weight:700;font-size:14px}.sphn-nav a{padding:27px 0 23px;position:relative;color:#3e4652}.sphn-nav a.active,.sphn-nav a:hover{color:var(--sphn-red)}.sphn-nav a.active:after{content:"";position:absolute;left:0;right:0;bottom:14px;height:2px;background:var(--sphn-red);border-radius:2px}.sphn-mobile-toggle{display:none;border:0;background:transparent;color:var(--sphn-red);font-size:24px}
.sphn-hero,.sphn-subhero{position:relative;overflow:hidden;background:linear-gradient(110deg,#fff8f5 0%,#fff 46%,#f9efea 100%);border-bottom:1px solid #eee}.sphn-hero{min-height:345px}.sphn-hero:before,.sphn-subhero:before{content:"";position:absolute;inset:0;background:radial-gradient(circle at 16% 20%,rgba(163,19,34,.07),transparent 24%),linear-gradient(150deg,transparent 52%,rgba(163,19,34,.04) 52%,transparent 73%)}.sphn-hero-art{position:absolute;right:7%;bottom:-22px;width:290px;height:230px;opacity:.9;background:url('../images/temple.svg') center bottom/contain no-repeat}.sphn-hero-content{position:relative;padding:72px 0 58px}.sphn-kicker{font-size:12px;color:var(--sphn-red);font-weight:800;letter-spacing:1.8px}.sphn-hero h1,.sphn-subhero h1{font-family:Georgia,"Times New Roman",serif;color:var(--sphn-red);font-size:46px;line-height:1.12;margin:12px 0 9px}.sphn-hero p,.sphn-subhero p{color:var(--sphn-muted);font-size:16px;margin:0}.sphn-search{margin-top:30px;width:min(720px,100%);height:54px;border:1px solid #e1dcda;border-radius:12px;background:#fff;display:flex;align-items:center;gap:10px;padding-left:17px;box-shadow:0 7px 20px rgba(66,35,39,.06)}.sphn-search span{font-size:22px;color:#9a9fa8}.sphn-search input{flex:1;border:0;outline:0;font-size:15px;background:transparent;min-width:0}.sphn-search button{align-self:stretch;border:0;background:var(--sphn-red);color:#fff;font-weight:800;border-radius:0 11px 11px 0;padding:0 24px;cursor:pointer}.sphn-search.compact{margin:0;height:44px;min-width:330px;box-shadow:none}.sphn-search.compact button{padding:0 18px}
.sphn-subhero{min-height:235px}.sphn-subhero .sphn-container{position:relative;padding:54px 0}.sphn-subhero h1{font-size:38px;max-width:850px}.sphn-breadcrumb{display:flex;align-items:center;gap:8px;color:#7b8088;font-size:13px;margin-bottom:18px}.sphn-breadcrumb a{color:var(--sphn-red)}
.sphn-main{padding:34px 0 70px}.sphn-tabs{border-bottom:1px solid var(--sphn-line);display:flex;gap:26px;margin-bottom:18px}.sphn-tabs a{font-weight:800;font-size:14px;padding:12px 2px;color:#7b8088;border-bottom:3px solid transparent}.sphn-tabs a.active{color:var(--sphn-red);border-color:var(--sphn-red)}.sphn-filter-row{display:flex;justify-content:space-between;align-items:center;gap:18px;margin-bottom:22px}.sphn-chips{display:flex;gap:9px;flex-wrap:wrap}.sphn-chips a{border:1px solid #e6d8da;background:#fff;border-radius:999px;padding:8px 14px;font-size:13px;font-weight:700;color:#6d5a5e}.sphn-chips a.active,.sphn-chips a:hover{background:var(--sphn-red);border-color:var(--sphn-red);color:#fff}.sphn-result-count{color:#8b9098;font-size:13px}.sphn-layout{display:grid;grid-template-columns:minmax(0,1fr) 300px;gap:26px;align-items:start}.sphn-content-col{min-width:0}.sphn-lesson-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:20px}.sphn-lesson-card{border:1px solid var(--sphn-line);background:#fff;border-radius:14px;overflow:hidden;box-shadow:0 7px 20px rgba(48,33,36,.045);transition:.2s}.sphn-lesson-card:hover{transform:translateY(-2px);box-shadow:var(--sphn-shadow)}.sphn-thumb{height:210px;display:block;position:relative;overflow:hidden;background:#f3efed}.sphn-thumb img{width:100%;height:100%;object-fit:cover}.sphn-thumb:after{content:"";position:absolute;inset:0;background:linear-gradient(0deg,rgba(25,19,20,.2),transparent 45%)}.sphn-play,.sphn-video-play{position:absolute;left:50%;top:50%;transform:translate(-50%,-50%);width:58px;height:42px;border-radius:12px;background:#d81d2a;color:#fff;display:grid;place-items:center;box-shadow:0 10px 25px rgba(145,9,27,.25);z-index:2}.sphn-card-body{padding:17px}.sphn-card-top{display:flex;align-items:center;justify-content:space-between;gap:10px}.sphn-badge{background:#fdecef;color:var(--sphn-red);font-weight:900;font-size:11px;border-radius:5px;padding:5px 9px}.sphn-date{color:#91959c;font-size:12px}.sphn-card-body h2{font-size:18px;line-height:1.35;margin:12px 0 13px;min-height:48px}.sphn-card-body h2 a:hover{color:var(--sphn-red)}.sphn-teacher-line{display:flex;align-items:center;gap:8px;color:#5d646e;font-size:13px}.sphn-teacher-line img{width:30px;height:30px;border-radius:50%;object-fit:cover}.sphn-card-foot{margin-top:14px;padding-top:14px;border-top:1px solid #f0eeee;display:flex;justify-content:space-between;gap:12px;align-items:flex-end}.sphn-mini-tags{display:flex;flex-wrap:wrap;gap:6px}.sphn-mini-tags span{font-size:11px;background:#faf6f4;border-radius:999px;padding:4px 8px;color:#7d666a}.sphn-outline-btn,.sphn-primary-btn{display:inline-flex;align-items:center;justify-content:center;border:1px solid #d9aeb5;color:var(--sphn-red);border-radius:7px;padding:8px 12px;font-size:11px;font-weight:900;white-space:nowrap}.sphn-outline-btn:hover{background:var(--sphn-red);color:#fff;border-color:var(--sphn-red)}.sphn-primary-btn{background:var(--sphn-red);color:#fff;border-color:var(--sphn-red);padding:12px 20px;font-size:13px}.sphn-primary-btn:hover{background:#850d19}
.sphn-sidebar{display:flex;flex-direction:column;gap:18px}.sphn-side-card,.sphn-panel{background:#fff;border:1px solid var(--sphn-line);border-radius:12px;box-shadow:0 5px 18px rgba(48,33,36,.035)}.sphn-side-card{overflow:hidden}.sphn-side-card h3{margin:0;background:#fff6f5;border-bottom:1px solid #f1dfdf;color:var(--sphn-red);font-size:13px;padding:13px 15px}.sphn-side-row,.sphn-teacher-row{display:flex;align-items:center;gap:9px;padding:11px 14px;border-bottom:1px solid #f2eeee;font-size:13px}.sphn-side-row:last-child,.sphn-teacher-row:last-child{border-bottom:0}.sphn-side-row span,.sphn-teacher-row span{flex:1}.sphn-side-row b,.sphn-teacher-row b{font-size:11px;color:var(--sphn-red);background:#fff1f2;border-radius:999px;padding:3px 7px}.sphn-teacher-row img{width:34px;height:34px;border-radius:50%;object-fit:cover}.sphn-number-grid{display:grid;grid-template-columns:repeat(8,1fr);gap:5px;padding:13px;max-height:164px;overflow-y:auto}.sphn-number{height:26px;border:1px solid #e6e1df;border-radius:4px;display:grid;place-items:center;font-size:11px;background:#fff;color:#555}.sphn-number:hover{border-color:#d5a0a7;color:var(--sphn-red)}.sphn-number.current{background:var(--sphn-red);border-color:var(--sphn-red);color:#fff;font-weight:900}.sphn-number.future{background:#f3f3f3;color:#aaa;cursor:default}.sphn-pagination{display:flex;justify-content:center;gap:6px;margin:28px 0}.sphn-pagination a{width:34px;height:34px;border:1px solid #ddd;border-radius:5px;display:grid;place-items:center;font-size:13px}.sphn-pagination a.active{background:var(--sphn-red);color:#fff;border-color:var(--sphn-red)}.sphn-empty{padding:50px;border:1px dashed #ddd;text-align:center;border-radius:12px;color:#777;grid-column:1/-1}
.sphn-latest-docs{margin-top:38px;border-top:1px solid var(--sphn-line);padding-top:30px}.sphn-section-head{display:flex;align-items:center;justify-content:space-between;gap:15px;margin-bottom:14px}.sphn-section-head h2{margin:0;font-size:16px;color:var(--sphn-red)}.sphn-section-head a{font-size:13px;color:var(--sphn-red);font-weight:700}.sphn-table-wrap{overflow:auto;border:1px solid var(--sphn-line);border-radius:10px;background:#fff}.sphn-table{border-collapse:collapse;width:100%;min-width:690px;font-size:13px}.sphn-table th{background:#faf6f4;color:#6c5b5e;text-align:left;font-size:11px;text-transform:uppercase;letter-spacing:.45px;padding:10px 12px;border-bottom:1px solid var(--sphn-line);white-space:nowrap}.sphn-table td{padding:11px 12px;border-bottom:1px solid #f0eeee;vertical-align:middle}.sphn-table tbody tr:last-child td{border-bottom:0}.sphn-table tbody tr:hover{background:#fffafa}.sphn-filetype{display:inline-block;min-width:44px;text-align:center;border-radius:5px;background:#fff0f1;color:var(--sphn-red);padding:4px 7px;font-size:11px;font-weight:900}.sphn-download{display:inline-flex;white-space:nowrap;border:1px solid #e1b4ba;border-radius:6px;padding:5px 8px;color:var(--sphn-red)!important;font-weight:800;font-size:11px}.sphn-filename{display:block;color:#9a9ca1;font-size:10px;margin-top:2px}
.sphn-detail-layout{grid-template-columns:minmax(0,1fr) 310px}.sphn-detail{display:flex;flex-direction:column;gap:20px}.sphn-meta-panel{padding:14px 18px;display:grid;grid-template-columns:1.4fr 1fr 1fr;gap:14px;align-items:center}.sphn-meta-panel>div{display:flex;flex-direction:column;gap:2px;padding-right:14px;border-right:1px solid #eee}.sphn-meta-panel>div:last-child{border-right:0}.sphn-meta-panel small{font-size:10px;color:#92969c;text-transform:uppercase}.sphn-meta-panel strong{font-size:13px}.sphn-meta-teacher{display:flex!important;flex-direction:row!important;align-items:center;gap:10px}.sphn-meta-teacher img{width:42px;height:42px;border-radius:50%;object-fit:cover}.sphn-meta-teacher span{display:flex;flex-direction:column}.sphn-video{position:relative;aspect-ratio:16/9;border-radius:13px;overflow:hidden;background:#131313;box-shadow:var(--sphn-shadow)}.sphn-video>img{width:100%;height:100%;object-fit:cover}.sphn-video-play{border:0;cursor:pointer;width:74px;height:52px;font-size:20px}.sphn-video iframe{width:100%;height:100%;border:0}.sphn-article{padding:24px}.sphn-article h2{font-size:16px;color:var(--sphn-red);margin:0 0 15px}.sphn-article h3{font-size:15px}.sphn-article p,.sphn-article li{color:#4d5663}.sphn-teacher-box{text-align:center;padding-bottom:17px}.sphn-teacher-box>img{width:86px;height:86px;border-radius:50%;object-fit:cover;margin:18px auto 8px}.sphn-teacher-box h4{margin:5px 0;font-size:17px}.sphn-teacher-box p{font-size:12px;color:#6d747d;padding:0 16px}.sphn-teacher-box .sphn-outline-btn{margin:4px 14px}
.sphn-doc-filter{padding:14px;display:grid;grid-template-columns:minmax(300px,1.6fr) 1fr 1fr 1fr auto;gap:9px;align-items:center;margin-bottom:17px}.sphn-doc-filter select{height:44px;border:1px solid #ded9d7;border-radius:8px;background:#fff;padding:0 10px;color:#545b65;min-width:0}.sphn-reset{font-size:12px;color:var(--sphn-red)!important;font-weight:700}.sphn-doc-table .sphn-table{min-width:920px}
.sphn-intro-copy{padding:28px}.sphn-intro-copy h2{color:var(--sphn-red);margin-top:0}.sphn-schedule-strip{display:grid;grid-template-columns:repeat(3,1fr);gap:12px;margin-top:24px}.sphn-schedule-strip div{background:#fff7f6;border:1px solid #f1dddd;border-radius:10px;padding:16px;display:flex;flex-direction:column}.sphn-schedule-strip strong{color:var(--sphn-red)}.sphn-schedule-strip span{font-size:13px;color:#6d747d}.sphn-teachers{margin-top:32px}.sphn-teacher-cards{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}.sphn-teacher-card{border:1px solid var(--sphn-line);border-radius:14px;background:#fff;padding:26px;text-align:center;box-shadow:0 8px 24px rgba(50,33,37,.045)}.sphn-teacher-card>img{width:118px;height:118px;border-radius:50%;object-fit:cover;margin:0 auto 14px}.sphn-teacher-card h3{margin:0 0 8px;color:var(--sphn-red);font-size:20px}.sphn-teacher-card p{color:#66707c;font-size:13px;min-height:68px}.sphn-contact-card{max-width:650px;margin:18px auto;text-align:center;border:1px solid #eedbdd;border-radius:18px;padding:55px;background:linear-gradient(180deg,#fff,#fff7f7);box-shadow:var(--sphn-shadow)}.sphn-contact-icon{width:76px;height:76px;border-radius:20px;background:var(--sphn-red);color:#fff;display:grid;place-items:center;font-size:34px;font-weight:900;margin:0 auto 18px}.sphn-contact-card h2{font-size:27px;margin:0 0 8px;color:var(--sphn-red)}.sphn-contact-card p{color:#66707c}.sphn-contact-card small{display:block;margin-top:16px;color:#999}
.sphn-footer{border-top:1px solid var(--sphn-line);background:#fbf8f7;padding:34px 0}.sphn-footer-grid{display:flex;justify-content:space-between;gap:30px}.sphn-footer strong{color:var(--sphn-red);font-family:Georgia,"Times New Roman",serif}.sphn-footer p{font-size:12px;color:#7d838c;margin:7px 0}.sphn-footer-grid>div:last-child{display:flex;flex-direction:column;align-items:flex-end;font-size:12px}.sphn-footer a{color:var(--sphn-red);font-weight:800}
@media(max-width:980px){.sphn-layout,.sphn-detail-layout{grid-template-columns:1fr}.sphn-sidebar{display:grid;grid-template-columns:repeat(2,1fr)}.sphn-side-card:last-child{grid-column:1/-1}.sphn-doc-filter{grid-template-columns:1fr 1fr}.sphn-search.compact{grid-column:1/-1}.sphn-teacher-cards{grid-template-columns:1fr 1fr}.sphn-hero-art{opacity:.35}.sphn-hero h1{font-size:40px}}
@media(max-width:720px){.sphn-container{width:min(100% - 24px,1180px)}.sphn-header{height:66px}.sphn-brand{min-width:0}.sphn-brand img{width:38px;height:38px}.sphn-brand strong{font-size:17px}.sphn-brand small{display:none}.sphn-mobile-toggle{display:block}.sphn-nav{display:none;position:absolute;top:66px;left:0;right:0;background:#fff;border-bottom:1px solid #eee;flex-direction:column;align-items:stretch;gap:0;padding:8px 16px;box-shadow:0 14px 25px rgba(0,0,0,.07)}.sphn-nav.open{display:flex}.sphn-nav a{padding:12px 5px}.sphn-nav a.active:after{bottom:5px}.sphn-hero{min-height:300px}.sphn-hero-content{padding:52px 0}.sphn-hero h1,.sphn-subhero h1{font-size:32px}.sphn-hero-art{right:-65px;width:240px}.sphn-search{height:50px}.sphn-search button{padding:0 14px}.sphn-lesson-grid{grid-template-columns:1fr}.sphn-thumb{height:205px}.sphn-sidebar{grid-template-columns:1fr}.sphn-side-card:last-child{grid-column:auto}.sphn-filter-row{align-items:flex-start;flex-direction:column}.sphn-number-grid{grid-template-columns:repeat(6,1fr)}.sphn-meta-panel{grid-template-columns:1fr}.sphn-meta-panel>div{border-right:0;border-bottom:1px solid #eee;padding-bottom:9px}.sphn-meta-panel>div:last-child{border-bottom:0}.sphn-schedule-strip,.sphn-teacher-cards{grid-template-columns:1fr}.sphn-doc-filter{grid-template-columns:1fr}.sphn-search.compact{grid-column:auto;min-width:0}.sphn-footer-grid{flex-direction:column}.sphn-footer-grid>div:last-child{align-items:flex-start}.sphn-contact-card{padding:35px 20px}.sphn-subhero .sphn-container{padding:42px 0}}

/* Home sort controls */
.sphn-filter-tools{display:flex;align-items:center;justify-content:flex-end;gap:14px;flex-wrap:wrap}.sphn-sort{display:flex;align-items:center;gap:5px}.sphn-sort>span{font-size:12px;color:#8b9098;margin-right:2px}.sphn-sort a{min-width:42px;text-align:center;border:1px solid #e6d8da;background:#fff;border-radius:7px;padding:6px 9px;font-size:12px;font-weight:800;color:#6d5a5e}.sphn-sort a:hover,.sphn-sort a.active{background:var(--sphn-red);border-color:var(--sphn-red);color:#fff}.sphn-filter-row{margin-top:0}
@media(max-width:720px){.sphn-filter-tools{width:100%;justify-content:space-between}.sphn-sort{margin-left:auto}}


/* Teacher portal: frontend management, independent from wp-admin restrictions */
.sphn-teacher-portal{min-height:calc(100vh - 180px);background:#fbfaf9}.sphn-login-card{width:min(470px,100%);margin:50px auto;background:#fff;border:1px solid var(--sphn-line);border-radius:18px;padding:34px;box-shadow:var(--sphn-shadow);text-align:center}.sphn-login-mark{width:62px;height:62px;border-radius:50%;margin:0 auto 14px;display:grid;place-items:center;background:var(--sphn-red);color:#fff;font-family:Georgia,serif;font-size:29px}.sphn-login-card h1{margin:0 0 7px;color:var(--sphn-red);font-family:Georgia,serif}.sphn-login-card>p{color:var(--sphn-muted);font-size:13px}.sphn-login-card form{display:flex;flex-direction:column;gap:14px;text-align:left;margin-top:24px}.sphn-login-card label,.sphn-teacher-edit label{font-size:13px;font-weight:700;color:#4b515b}.sphn-login-card input[type=text],.sphn-login-card input[type=password],.sphn-login-card input:not([type]),.sphn-teacher-edit input[type=text],.sphn-teacher-edit input[type=url],.sphn-teacher-edit input[type=file],.sphn-teacher-edit textarea{width:100%;margin-top:6px;border:1px solid #ded9d7;border-radius:8px;padding:11px 12px;background:#fff;font:inherit}.sphn-login-card .sphn-remember{display:flex;gap:8px;align-items:center;font-weight:500}.sphn-login-card .sphn-remember input{width:auto;margin:0}.sphn-login-card .sphn-primary-btn{border:0;cursor:pointer}.sphn-alert{padding:11px 14px;border-radius:8px;margin:16px 0;font-size:13px}.sphn-alert.error{background:#fff0f1;color:#9c1625;border:1px solid #efc7cc}.sphn-alert.success{background:#edf8ef;color:#1c6e31;border:1px solid #c9e6d0}.sphn-teacher-head{display:flex;justify-content:space-between;gap:24px;align-items:flex-end;margin-bottom:25px}.sphn-teacher-head h1{font-family:Georgia,serif;color:var(--sphn-red);font-size:34px;margin:4px 0}.sphn-teacher-head p{margin:0;color:var(--sphn-muted)}.sphn-teacher-actions{display:flex;gap:8px}.sphn-teacher-list-panel{background:#fff;border:1px solid var(--sphn-line);border-radius:14px;padding:20px;box-shadow:0 7px 20px rgba(48,33,36,.04)}.sphn-teacher-list-panel .sphn-section-head span{color:var(--sphn-muted);font-size:13px}.sphn-teacher-table{min-width:840px}.sphn-teacher-edit{display:flex;flex-direction:column;gap:18px}.sphn-teacher-edit-top{display:flex;align-items:center;justify-content:space-between}.sphn-teacher-edit-top>a{color:var(--sphn-red);font-weight:700}.sphn-teacher-edit-top strong{font-size:20px}.sphn-auto-fields{display:grid;grid-template-columns:repeat(3,1fr);gap:12px}.sphn-auto-fields>div{background:#fff;border:1px solid var(--sphn-line);border-radius:10px;padding:13px 16px;display:flex;flex-direction:column}.sphn-auto-fields small{color:#8d9299;text-transform:uppercase;font-size:10px}.sphn-auto-fields strong{margin-top:3px}.sphn-teacher-form-panel{display:flex;flex-direction:column;gap:16px}.sphn-teacher-categories{display:flex;align-items:center;gap:14px;flex-wrap:wrap}.sphn-teacher-categories>span{font-size:13px;font-weight:800;color:#4b515b}.sphn-teacher-categories label{font-weight:600}.sphn-teacher-docs h2{margin:0;color:var(--sphn-red);font-size:17px}.sphn-muted{color:var(--sphn-muted);font-size:12px}.sphn-teacher-doc-list{border:1px solid #eee;border-radius:9px;max-height:250px;overflow:auto;margin:12px 0}.sphn-teacher-doc-list>label{display:flex;align-items:center;gap:10px;padding:10px 12px;border-bottom:1px solid #f0eeee;font-weight:500}.sphn-teacher-doc-list>label:last-child{border-bottom:0}.sphn-teacher-doc-list span{display:flex;flex-direction:column}.sphn-teacher-doc-list small{color:#8b9098}.sphn-upload-new{display:grid;grid-template-columns:1fr 1fr;gap:12px;margin-top:14px}.sphn-teacher-savebar{position:sticky;bottom:0;z-index:20;display:flex;justify-content:space-between;align-items:center;gap:20px;background:rgba(255,255,255,.96);border:1px solid var(--sphn-line);border-radius:12px;padding:12px 15px;box-shadow:0 -5px 20px rgba(48,33,36,.06)}.sphn-teacher-savebar span{color:var(--sphn-muted);font-size:12px}.sphn-teacher-savebar button{border:0;cursor:pointer}
@media(max-width:720px){.sphn-teacher-head{align-items:flex-start;flex-direction:column}.sphn-teacher-actions{width:100%}.sphn-auto-fields,.sphn-upload-new{grid-template-columns:1fr}.sphn-teacher-savebar{align-items:stretch;flex-direction:column}.sphn-teacher-savebar .sphn-primary-btn{width:100%}}

/* Teacher lesson image upload */
.sphn-lesson-image-field{display:grid;grid-template-columns:260px minmax(0,1fr);gap:18px;align-items:center;border:1px solid #eee4e2;border-radius:12px;padding:14px;background:#fffaf9}
.sphn-lesson-image-preview{width:100%;aspect-ratio:16/9;border-radius:10px;overflow:hidden;background:#f4efed;border:1px solid #eadfdd}
.sphn-lesson-image-preview img{width:100%;height:100%;object-fit:cover;display:block}
.sphn-lesson-image-controls{display:flex;flex-direction:column;gap:9px}.sphn-lesson-image-controls input[type=file]{width:100%;margin-top:6px;border:1px solid #ded9d7;border-radius:8px;padding:10px;background:#fff}
.sphn-remove-image{display:flex!important;align-items:center;gap:8px;font-weight:600!important;color:#7d5558!important}.sphn-remove-image input{width:auto!important;margin:0!important}
.sphn-image-auto-note{display:inline-flex;width:max-content;max-width:100%;padding:6px 10px;border-radius:999px;background:#f7eeee;color:#9d2a2e;font-size:12px;font-weight:700}
@media(max-width:720px){.sphn-lesson-image-field{grid-template-columns:1fr}.sphn-lesson-image-preview{max-width:100%}}


/* WordPress Post thuộc Category Hán Ngữ */
.sphn-post-main{padding-top:34px}.sphn-wp-content{font-size:16px;color:var(--sphn-ink)}.sphn-wp-content> :first-child{margin-top:0}.sphn-wp-content> :last-child{margin-bottom:0}.sphn-wp-content h2,.sphn-wp-content h3,.sphn-wp-content h4{color:var(--sphn-red);line-height:1.3}.sphn-wp-content h2{font-size:25px;margin:28px 0 14px}.sphn-wp-content h3{font-size:20px;margin:24px 0 12px}.sphn-wp-content p{margin:0 0 16px}.sphn-wp-content ul,.sphn-wp-content ol{margin:0 0 18px;padding-left:24px}.sphn-wp-content a:not(.sphn-outline-btn):not(.sphn-primary-btn){color:var(--sphn-red);text-decoration:underline;text-underline-offset:2px}.sphn-wp-content blockquote{margin:22px 0;padding:14px 18px;border-left:4px solid var(--sphn-red);background:#fff7f6;border-radius:0 10px 10px 0}.sphn-wp-content table{width:100%;border-collapse:collapse;margin:20px 0}.sphn-wp-content th,.sphn-wp-content td{border:1px solid var(--sphn-line);padding:10px 12px;text-align:left}.sphn-wp-content th{background:#fff7f6;color:var(--sphn-red)}.sphn-post-featured{margin:0 0 26px}.sphn-post-featured img{width:100%;height:auto;border-radius:14px}.sphn-wp-content .aligncenter{margin-left:auto;margin-right:auto}.sphn-wp-content .alignleft{float:left;margin:6px 20px 12px 0}.sphn-wp-content .alignright{float:right;margin:6px 0 12px 20px}.sphn-wp-content:after{content:"";display:block;clear:both}
@media(max-width:720px){.sphn-wp-content{font-size:15px}.sphn-wp-content h2{font-size:22px}.sphn-wp-content .alignleft,.sphn-wp-content .alignright{float:none;margin:14px auto}}


/* v1.1.4 - Admin đổi giảng viên nhanh tại /han-ngu/quan-ly */
.sphn-quick-teacher-wrap{display:flex;flex-direction:column;gap:3px;min-width:145px}
.sphn-quick-teacher-select{width:100%;min-width:140px;max-width:190px;border:1px solid #ded9d7;border-radius:7px;background:#fff;padding:7px 9px;color:var(--sphn-ink);font:inherit;cursor:pointer}
.sphn-quick-teacher-select:disabled{opacity:.65;cursor:wait}
.sphn-quick-teacher-status{min-height:14px;font-size:10px;line-height:1.2;color:#7d838c}
.sphn-quick-teacher-status.is-saving{color:#996800}.sphn-quick-teacher-status.is-success{color:#1d7a35}.sphn-quick-teacher-status.is-error{color:#b32d2e}
.sphn-quick-teacher-help{margin:-4px 0 12px}
.sphn-teacher-table{min-width:1020px}
.sphn-auto-fields .sphn-quick-teacher-select{max-width:none}
@media(max-width:720px){.sphn-quick-teacher-select{min-width:135px}.sphn-teacher-table{min-width:980px}}


/* v1.1.7 - Admin Teacher Portal: quick categories/documents + bulk apply */
.sphn-portal-bulk{display:grid;grid-template-columns:auto minmax(220px,1fr) minmax(240px,1.2fr) auto;gap:12px 18px;align-items:start;margin:14px 0 18px;padding:14px;border:1px solid #ead8d8;border-radius:12px;background:#fff9f8}
.sphn-portal-bulk-title{grid-column:1/-1;display:flex;align-items:baseline;gap:10px;color:var(--sphn-red)}
.sphn-portal-bulk-title span{font-size:12px;color:var(--sphn-muted)}
.sphn-portal-select-all{display:flex;align-items:center;gap:7px;font-size:13px;font-weight:700;white-space:nowrap;padding-top:4px}
.sphn-portal-bulk-group{border-left:1px solid #ecdede;padding-left:14px;min-width:0}
.sphn-bulk-enable{display:flex;align-items:center;gap:7px;font-size:13px;margin-bottom:7px}
.sphn-bulk-category-options{display:flex;flex-wrap:wrap;gap:7px 12px}
.sphn-bulk-category-options label{display:flex;align-items:center;gap:5px;font-size:12px;white-space:nowrap}
.sphn-portal-bulk-docs details{position:relative}
.sphn-portal-bulk-docs summary,.sphn-quick-doc-details summary{cursor:pointer;color:var(--sphn-red);font-weight:700;font-size:12px;list-style:none}
.sphn-portal-bulk-docs summary::-webkit-details-marker,.sphn-quick-doc-details summary::-webkit-details-marker{display:none}
.sphn-bulk-doc-options,.sphn-quick-doc-options{display:flex;flex-direction:column;gap:0;max-height:250px;overflow:auto;margin-top:7px;border:1px solid #eadede;border-radius:8px;background:#fff;min-width:260px}
.sphn-bulk-doc-options label,.sphn-quick-doc-options label{display:flex;align-items:flex-start;gap:7px;padding:7px 9px;border-bottom:1px solid #f3eeee;font-size:12px;font-weight:500}
.sphn-bulk-doc-options label:last-child,.sphn-quick-doc-options label:last-child{border-bottom:0}
.sphn-bulk-doc-options label>span,.sphn-quick-doc-options label>span{display:flex;flex-direction:column;line-height:1.3}
.sphn-bulk-doc-options small,.sphn-quick-doc-options small{color:#90949b;font-size:10px}
.sphn-bulk-apply-btn{align-self:center;white-space:nowrap;border:0;cursor:pointer}
.sphn-bulk-apply-btn:disabled{opacity:.6;cursor:wait}
.sphn-bulk-status{grid-column:1/-1;min-height:16px;font-size:12px}
.sphn-bulk-status.is-saving,.sphn-inline-manage-status.is-saving{color:#996800}.sphn-bulk-status.is-success,.sphn-inline-manage-status.is-success{color:#1d7a35}.sphn-bulk-status.is-error,.sphn-inline-manage-status.is-error{color:#b32d2e}
.sphn-admin-manage-table{min-width:1320px}
.sphn-admin-manage-table .sphn-col-select{width:36px;text-align:center;padding-left:8px;padding-right:8px}
.sphn-quick-category-cell{min-width:170px}
.sphn-quick-category-options{display:flex;flex-direction:column;gap:5px}
.sphn-quick-category-options label{display:flex;align-items:center;gap:6px;font-size:12px;white-space:nowrap}
.sphn-inline-manage-status{display:block;min-height:14px;margin-top:5px;font-size:10px}
.sphn-quick-doc-cell{min-width:230px;max-width:290px;vertical-align:top}
.sphn-linked-doc-tags{display:flex;flex-wrap:wrap;gap:4px;margin-bottom:7px}
.sphn-doc-tag{display:inline-block;max-width:100%;padding:3px 6px;border-radius:999px;background:#f8eceb;color:#7f2529;font-size:10px;line-height:1.25;white-space:normal}
.sphn-doc-none{font-size:11px;color:#969aa0}
.sphn-quick-doc-details[open]{position:relative;z-index:5}
.sphn-quick-doc-options{min-width:280px;max-width:330px}
@media(max-width:980px){.sphn-portal-bulk{grid-template-columns:1fr 1fr}.sphn-portal-bulk-title,.sphn-bulk-status{grid-column:1/-1}.sphn-portal-select-all{grid-column:1/-1}.sphn-bulk-apply-btn{justify-self:start}}
@media(max-width:720px){.sphn-portal-bulk{grid-template-columns:1fr}.sphn-portal-bulk-title,.sphn-bulk-status,.sphn-portal-select-all{grid-column:1}.sphn-portal-bulk-group{border-left:0;border-top:1px solid #ecdede;padding-left:0;padding-top:10px}.sphn-admin-manage-table{min-width:1260px}}

/* v1.1.8 - restore bulk Teacher + Visibility, keep Categories + Documents */
.sphn-portal-bulk{grid-template-columns:repeat(4,minmax(180px,1fr));}
.sphn-portal-select-all{grid-column:1/-1;padding-top:0}
.sphn-bulk-teacher-select,.sphn-bulk-visibility-select,.sphn-quick-visibility{width:100%;min-width:140px;border:1px solid #ded9d7;border-radius:7px;background:#fff;padding:7px 9px;color:var(--sphn-ink);font:inherit;cursor:pointer}
.sphn-bulk-teacher-select:disabled,.sphn-bulk-visibility-select:disabled,.sphn-quick-visibility:disabled{opacity:.65;cursor:wait}
.sphn-portal-bulk .sphn-bulk-apply-btn{grid-column:1/-1;justify-self:start}
.sphn-quick-visibility-cell{min-width:120px}
.sphn-quick-visibility{max-width:130px}
.sphn-admin-manage-table{min-width:1380px}
@media(max-width:1100px){.sphn-portal-bulk{grid-template-columns:1fr 1fr}.sphn-portal-bulk-title,.sphn-portal-select-all,.sphn-bulk-status,.sphn-portal-bulk .sphn-bulk-apply-btn{grid-column:1/-1}}
@media(max-width:720px){.sphn-portal-bulk{grid-template-columns:1fr}.sphn-portal-bulk-title,.sphn-portal-select-all,.sphn-bulk-status,.sphn-portal-bulk .sphn-bulk-apply-btn{grid-column:1}.sphn-admin-manage-table{min-width:1340px}}

/* v1.1.10 - Gallery WordPress + Lightbox Hán Ngữ */
/* Classic Gallery / Block Gallery: giữ đúng tỉ lệ ảnh, không kéo méo theo width/height HTML. */
.sphn-article .gallery,.sphn-wp-content .gallery{display:grid!important;gap:16px!important;width:100%!important;margin:18px 0!important;clear:both!important}
.sphn-article .gallery.gallery-columns-1,.sphn-wp-content .gallery.gallery-columns-1{grid-template-columns:1fr!important}
.sphn-article .gallery.gallery-columns-2,.sphn-wp-content .gallery.gallery-columns-2{grid-template-columns:repeat(2,minmax(0,1fr))!important}
.sphn-article .gallery.gallery-columns-3,.sphn-wp-content .gallery.gallery-columns-3{grid-template-columns:repeat(3,minmax(0,1fr))!important}
.sphn-article .gallery.gallery-columns-4,.sphn-wp-content .gallery.gallery-columns-4{grid-template-columns:repeat(4,minmax(0,1fr))!important}
.sphn-article .gallery.gallery-columns-5,.sphn-wp-content .gallery.gallery-columns-5{grid-template-columns:repeat(5,minmax(0,1fr))!important}
.sphn-article .gallery.gallery-columns-6,.sphn-wp-content .gallery.gallery-columns-6{grid-template-columns:repeat(6,minmax(0,1fr))!important}
.sphn-article .gallery.gallery-columns-7,.sphn-wp-content .gallery.gallery-columns-7{grid-template-columns:repeat(7,minmax(0,1fr))!important}
.sphn-article .gallery.gallery-columns-8,.sphn-wp-content .gallery.gallery-columns-8{grid-template-columns:repeat(8,minmax(0,1fr))!important}
.sphn-article .gallery.gallery-columns-9,.sphn-wp-content .gallery.gallery-columns-9{grid-template-columns:repeat(9,minmax(0,1fr))!important}
.sphn-article .gallery-item,.sphn-wp-content .gallery-item{float:none!important;width:auto!important;max-width:none!important;margin:0!important;padding:0!important;text-align:center!important;min-width:0!important}
.sphn-article .gallery-icon,.sphn-wp-content .gallery-icon,.sphn-article .gallery-icon a,.sphn-wp-content .gallery-icon a{display:block!important;width:100%!important;min-width:0!important}
.sphn-article .gallery img,.sphn-wp-content .gallery img{display:block!important;width:100%!important;max-width:100%!important;height:auto!important;max-height:none!important;object-fit:contain!important;aspect-ratio:auto!important;margin:0 auto!important;border:0!important}
.sphn-article .gallery br,.sphn-wp-content .gallery br{display:none!important}
.sphn-article .gallery-caption,.sphn-wp-content .gallery-caption{margin:7px 0 0!important;font-size:12px!important;line-height:1.4!important;color:#727780!important}
.sphn-article .wp-block-gallery,.sphn-wp-content .wp-block-gallery{gap:16px!important}
.sphn-article .wp-block-gallery img,.sphn-wp-content .wp-block-gallery img,.sphn-article .blocks-gallery-item img,.sphn-wp-content .blocks-gallery-item img{width:100%!important;height:auto!important;object-fit:contain!important;aspect-ratio:auto!important}
@media(max-width:720px){
  .sphn-article .gallery,.sphn-wp-content .gallery{grid-template-columns:1fr!important;gap:18px!important}
  .sphn-article .gallery img,.sphn-wp-content .gallery img{width:100%!important;height:auto!important}
  .sphn-article .wp-block-gallery,.sphn-wp-content .wp-block-gallery{display:grid!important;grid-template-columns:1fr!important}
  .sphn-article .wp-block-gallery .wp-block-image,.sphn-wp-content .wp-block-gallery .wp-block-image,.sphn-article .blocks-gallery-item,.sphn-wp-content .blocks-gallery-item{width:100%!important;margin:0!important}
}

/* Lightbox riêng: nút Trước/Sau chuyển xuống dưới ảnh để không chiếm bề ngang ảnh. */
.sphn-article img.sphn-lightbox-trigger-image,.sphn-wp-content img.sphn-lightbox-trigger-image{cursor:zoom-in}
.sphn-lightbox-trigger{cursor:zoom-in}
body.sphn-lightbox-open{overflow:hidden!important;touch-action:none}
.sphn-lightbox[hidden]{display:none!important}
.sphn-lightbox{position:fixed;inset:0;z-index:999999;background:rgba(8,10,14,.94);color:#fff;opacity:0;transition:opacity .16s ease;display:grid;grid-template-columns:minmax(0,1fr);grid-template-rows:62px minmax(0,1fr) auto auto;align-items:stretch}
.sphn-lightbox.is-open{opacity:1}
.sphn-lightbox-topbar{grid-column:1;grid-row:1;display:flex;align-items:center;justify-content:space-between;gap:15px;padding:8px 14px;background:linear-gradient(180deg,rgba(0,0,0,.48),transparent);z-index:3}
.sphn-lightbox-counter{font-size:13px;font-weight:700;letter-spacing:.2px;color:rgba(255,255,255,.9)}
.sphn-lightbox-tools{display:flex;align-items:center;gap:6px}
.sphn-lightbox-tool,.sphn-lightbox-nav{border:0;background:rgba(255,255,255,.1);color:#fff;cursor:pointer;display:grid;place-items:center;transition:background .15s ease,transform .15s ease}
.sphn-lightbox-tool:hover,.sphn-lightbox-tool:focus-visible,.sphn-lightbox-nav:hover,.sphn-lightbox-nav:focus-visible{background:rgba(255,255,255,.2);outline:2px solid rgba(255,255,255,.55);outline-offset:1px}
.sphn-lightbox-tool{height:40px;min-width:40px;padding:0 10px;border-radius:8px;font:600 18px/1 Arial,sans-serif}
.sphn-lightbox-zoom-reset{font-size:11px;min-width:54px}
.sphn-lightbox-close{font-size:29px;font-weight:300}
.sphn-lightbox-stage{grid-column:1;grid-row:2;min-width:0;min-height:0;display:flex;align-items:center;justify-content:center;overflow:hidden;touch-action:pan-y;cursor:zoom-out;padding:6px 10px}
.sphn-lightbox-image-wrap{display:flex;align-items:center;justify-content:center;max-width:100%;max-height:100%;transform-origin:center center;transition:transform .16s ease}
.sphn-lightbox-image{display:block;max-width:calc(100vw - 24px);max-height:calc(100vh - 178px);max-height:calc(100dvh - 178px);width:auto;height:auto;object-fit:contain;box-shadow:0 16px 54px rgba(0,0,0,.48);user-select:none;-webkit-user-drag:none}
.sphn-lightbox.is-zoomed .sphn-lightbox-stage{cursor:zoom-out}
.sphn-lightbox-bottom-nav{grid-column:1;grid-row:3;display:flex;align-items:center;justify-content:center;gap:14px;min-height:54px;padding:5px 12px 3px;z-index:3}
.sphn-lightbox-nav{width:54px;height:44px;border-radius:10px;font:300 38px/1 Arial,sans-serif;background:rgba(255,255,255,.11)}
.sphn-lightbox-caption{grid-column:1;grid-row:4;max-width:min(1100px,calc(100% - 40px));justify-self:center;padding:5px 0 14px;text-align:center;font-size:13px;line-height:1.45;color:rgba(255,255,255,.88);text-shadow:0 1px 2px rgba(0,0,0,.7)}
@media(max-width:720px){
  .sphn-lightbox{grid-template-rows:54px minmax(0,1fr) 50px auto}
  .sphn-lightbox-topbar{padding:6px 8px}.sphn-lightbox-tools{gap:3px}.sphn-lightbox-tool{height:36px;min-width:36px;padding:0 7px}.sphn-lightbox-zoom-reset{display:none}
  .sphn-lightbox-stage{padding:4px 5px}
  .sphn-lightbox-image{max-width:calc(100vw - 10px);max-height:calc(100vh - 126px);max-height:calc(100dvh - 126px)}
  .sphn-lightbox-bottom-nav{min-height:50px;padding:3px 8px;gap:12px}
  .sphn-lightbox-nav{width:50px;height:42px;font-size:36px;background:rgba(255,255,255,.12)}
  .sphn-lightbox-caption{font-size:12px;padding:3px 12px 10px;max-width:100%}
}

/* v1.1.11 - YouTube URL trong NOI DUNG BUOI HOC -> player responsive */
.sphn-article .sphn-youtube-embed,
.sphn-wp-content .sphn-youtube-embed{
  position:relative;
  width:100%;
  aspect-ratio:16/9;
  margin:22px 0;
  overflow:hidden;
  border-radius:14px;
  background:#000;
  box-shadow:0 8px 24px rgba(20,28,38,.12);
}
.sphn-article .sphn-youtube-embed iframe,
.sphn-wp-content .sphn-youtube-embed iframe{
  position:absolute;
  inset:0;
  width:100%;
  height:100%;
  border:0;
  display:block;
}
@media (max-width:680px){
  .sphn-article .sphn-youtube-embed,
  .sphn-wp-content .sphn-youtube-embed{
    margin:16px 0;
    border-radius:10px;
  }
}