:root{--navy:#103f63;--navy2:#082d49;--pink:#c85c7b;--rose:#9e3658;--mint:#3f8f7f;--gold:#c99a38;--bg:#f3f6f8;--card:#fff;--text:#173046;--muted:#687c8d;--line:#dbe4ea}
*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;font-family:Arial,Helvetica,sans-serif;background:var(--bg);color:var(--text)}a{text-decoration:none;color:inherit}.app{min-height:100vh;display:grid;grid-template-columns:270px 1fr}.sidebar{position:fixed;inset:0 auto 0 0;width:270px;background:linear-gradient(180deg,var(--navy2),var(--navy));color:#fff;padding:24px 17px;display:flex;flex-direction:column;z-index:20}.sidebar-brand{display:flex;gap:12px;align-items:center;padding:0 7px 24px;border-bottom:1px solid #ffffff22}.sidebar-brand img{width:56px;height:56px;object-fit:contain;background:#fff;border-radius:12px;padding:6px}.sidebar-brand strong,.sidebar-brand small{display:block}.sidebar-brand strong{font-size:16px}.sidebar-brand small{font-size:11px;opacity:.75;margin-top:4px}.sidebar nav{display:grid;gap:5px;margin-top:20px}.sidebar nav a{padding:11px 12px;border-radius:10px;display:flex;align-items:center;gap:12px;color:#dcecf5;font-size:13px}.sidebar nav a:hover,.sidebar nav a.active{background:#ffffff18;color:#fff}.sidebar nav span{width:20px;text-align:center}.sidebar-footer{margin-top:auto;border-top:1px solid #ffffff22;padding:18px 8px 0;font-size:11px;line-height:1.5;color:#c9dce8}.sidebar-footer strong{color:#fff}.workspace{grid-column:2}.topbar{height:74px;background:#fff;border-bottom:1px solid var(--line);display:flex;align-items:center;padding:0 28px;position:sticky;top:0;z-index:15}.menu-button{display:none}.top-title{display:flex;flex-direction:column}.top-title b{font-size:17px}.top-title span{font-size:11px;color:var(--muted);margin-top:4px}.top-tools{margin-left:auto;display:flex;align-items:center;gap:9px}.search-wrap{border:1px solid var(--line);border-radius:10px;padding:8px 11px;display:flex;align-items:center;gap:7px;background:#fafcfd}.search-wrap input{border:0;outline:0;background:transparent;width:210px}.tool-button,.logout-button{border:1px solid var(--line);background:#fff;border-radius:9px;padding:9px 11px;cursor:pointer}.logout-button{color:var(--navy);font-weight:700}.global-progress{height:4px;background:#e5edf1}.global-progress span{display:block;height:100%;width:0;background:linear-gradient(90deg,var(--pink),var(--gold))}.page{padding:30px;max-width:1450px;margin:auto}.hero-dashboard{height:420px;border-radius:22px;position:relative;overflow:hidden;background:url('../assets/images/floral-01.png') center 42%/cover no-repeat;box-shadow:0 18px 45px #0a294122}.hero-shade{position:absolute;inset:0;background:linear-gradient(90deg,#082d49ed 0%,#103f63c9 44%,transparent 80%)}.hero-copy{position:relative;color:#fff;max-width:690px;padding:62px 55px}.eyebrow{font-size:11px;letter-spacing:1.7px;font-weight:800;color:var(--pink);margin:0 0 12px}.eyebrow.light{color:#ffd9e4}.hero-copy h1{font-size:48px;line-height:1.05;margin:0 0 18px}.hero-copy h1 em{font-style:normal;color:#f8c6d3;font-weight:500}.hero-copy>p{line-height:1.65;color:#ecf5f8}.profile-row{display:flex;gap:8px;margin-top:24px}.profile-row input,.profile-row select,.profile-row button{border:0;border-radius:9px;padding:12px 13px}.profile-row input{min-width:220px}.profile-row button{background:var(--pink);color:#fff;font-weight:800;cursor:pointer}.dashboard-stats{display:grid;grid-template-columns:repeat(4,1fr);gap:14px;margin:18px 0}.dashboard-stats article{background:var(--card);border:1px solid var(--line);padding:20px;border-radius:15px}.dashboard-stats span,.dashboard-stats small{display:block;color:var(--muted);font-size:12px}.dashboard-stats b{display:block;font-size:30px;margin:9px 0;color:var(--navy)}.section-block,.module-preview,.portfolio-section{margin-top:34px}.section-head{display:flex;justify-content:space-between;align-items:end;margin-bottom:15px}.section-head h2{margin:0;font-size:25px}.section-head a{color:var(--rose);font-weight:700;font-size:13px}.continue-card{background:#fff;border:1px solid var(--line);border-radius:16px;padding:22px;display:flex;justify-content:space-between;align-items:center}.continue-card button,.resource-grid button,.resource-grid a{background:var(--navy);color:#fff;border:0;border-radius:8px;padding:10px 14px;display:inline-block;cursor:pointer}.quick-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:14px;margin-top:28px}.quick-grid a{background:#fff;border:1px solid var(--line);border-radius:15px;padding:22px;transition:.2s}.quick-grid a:hover{transform:translateY(-3px);box-shadow:0 10px 28px #12304716}.quick-grid span{font-size:28px}.quick-grid h3{margin:13px 0 7px}.quick-grid p{font-size:13px;line-height:1.5;color:var(--muted)}.mini-module-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:13px}.mini-module-grid a,.module-card{background:#fff;border:1px solid var(--line);border-radius:15px;overflow:hidden}.mini-module-grid img,.module-card img{width:100%;height:145px;object-fit:cover}.mini-module-grid div{padding:14px}.mini-module-grid small{color:var(--pink);font-weight:800}.page-intro{background:#fff;border:1px solid var(--line);border-radius:20px;padding:34px;margin-bottom:22px}.page-intro h1{font-size:38px;margin:0 0 12px}.page-intro p:last-child{max-width:860px;color:var(--muted);line-height:1.6}.floral-intro,.career-intro{background:linear-gradient(135deg,#103f63,#7d3152);color:#fff;border:0}.floral-intro p:last-child,.career-intro p:last-child{color:#e9f1f5}.module-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:17px}.module-card{display:grid;grid-template-columns:180px 1fr}.module-card img{height:100%;min-height:220px}.module-card-content{padding:22px}.module-card-content>span{color:var(--pink);font-weight:800;font-size:12px}.module-card h2{margin:8px 0}.module-card p{color:var(--muted);font-size:13px}.lesson-list{display:grid;gap:7px;margin-top:16px}.lesson-list a{padding:10px 11px;border-radius:8px;background:#f3f7f9;font-size:12px}.back-link{display:inline-block;color:var(--rose);font-weight:700;margin-bottom:14px}.lesson-shell{max-width:1000px;margin:auto}.lesson-cover,.lesson-block,.lesson-two-column article{background:#fff;border:1px solid var(--line);border-radius:16px;padding:28px;margin-bottom:15px}.lesson-cover{display:flex;justify-content:space-between;align-items:center;background:linear-gradient(135deg,#fff,#f9eef2)}.lesson-cover h1{font-size:38px;margin:5px 0}.lesson-cover button{background:var(--rose);color:#fff;border:0;border-radius:9px;padding:12px 15px;cursor:pointer;font-weight:700}.lesson-tags{display:flex;gap:8px}.lesson-tags span{background:#fff;border:1px solid var(--line);border-radius:20px;padding:6px 9px;font-size:11px}.lesson-block h2{margin:4px 0 15px}.lesson-block p{line-height:1.75;color:#42596c}.objective-block{border-left:5px solid var(--pink)}.summary-block{border-left:5px solid var(--mint)}.key-point-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:9px}.key-point-grid div{background:#f2f6f8;padding:14px;border-radius:9px}.lesson-two-column{display:grid;grid-template-columns:1fr 1fr;gap:15px}.lesson-two-column article{margin:0}.lesson-shell textarea{width:100%;min-height:130px;border:1px solid var(--line);border-radius:10px;padding:13px;font:inherit}.lesson-footer{display:flex;justify-content:space-between;align-items:center;padding:15px 0}.lesson-footer button{border:0;background:var(--navy);color:#fff;padding:10px 14px;border-radius:8px}.level-key{display:flex;gap:9px;flex-wrap:wrap;margin-bottom:20px}.level-key span{background:#fff;border:1px solid var(--line);border-radius:25px;padding:8px 12px;font-size:12px}.skill-groups{display:grid;gap:16px}.skill-group{background:#fff;border:1px solid var(--line);border-radius:16px;padding:22px}.skill-row{display:grid;grid-template-columns:1fr repeat(5,44px);align-items:center;border-top:1px solid #edf1f3;padding:10px 0}.skill-row:first-of-type{border-top:0}.skill-row button{width:34px;height:34px;border-radius:50%;border:1px solid var(--line);background:#fff}.skill-row button.selected{background:var(--pink);color:#fff}.assessment-summary{background:#fff;border:1px solid var(--line);border-radius:15px;padding:18px;margin-bottom:17px}.assessment-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:15px}.assessment-card{background:#fff;border:1px solid var(--line);border-radius:15px;padding:20px}.assessment-card button{background:var(--navy);color:#fff;border:0;border-radius:8px;padding:10px 13px}.quiz-option{display:block;border:1px solid var(--line);border-radius:8px;padding:9px;margin:7px 0;cursor:pointer}.gallery-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:17px}.gallery-card{background:#fff;border:1px solid var(--line);border-radius:16px;overflow:hidden}.gallery-card img{width:100%;height:310px;object-fit:cover}.gallery-card div{padding:17px}.gallery-card span{font-size:10px;color:var(--pink);font-weight:800}.gallery-card p{font-size:12px;color:var(--muted);line-height:1.5}.resource-notice{background:#fff6dd;border:1px solid #efdda5;border-radius:13px;padding:17px;margin-bottom:17px}.resource-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:15px}.resource-grid article{background:#fff;border:1px solid var(--line);border-radius:15px;padding:22px}.resource-grid span{color:var(--pink);font-weight:800;font-size:11px}.career-grid,.why-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:15px}.career-grid article,.why-grid article{background:#fff;border:1px solid var(--line);border-radius:15px;padding:21px}.career-grid article>span{color:var(--pink);font-size:24px;font-weight:800}.career-grid li{margin:8px 0;color:var(--muted);font-size:13px}.career-callout,.why-hero{background:linear-gradient(135deg,#103f63,#7d3152);color:#fff;border-radius:20px;padding:38px;margin:25px 0}.why-hero h1{font-size:42px}.why-stats{display:grid;grid-template-columns:repeat(4,1fr);gap:12px}.why-stats article{background:#fff;border:1px solid var(--line);padding:20px;border-radius:14px}.why-stats b,.why-stats span{display:block}.why-stats b{font-size:27px;color:var(--rose)}.why-copy{background:#fff;border:1px solid var(--line);border-radius:15px;padding:22px;margin:15px 0;line-height:1.7}.portfolio-list{display:grid;gap:10px}.portfolio-item{background:#fff;border:1px solid var(--line);border-radius:12px;padding:16px}.search-panel{position:fixed;right:25px;top:78px;width:360px;max-height:70vh;overflow:auto;background:#fff;border:1px solid var(--line);box-shadow:0 18px 55px #0002;border-radius:13px;padding:10px;display:none;z-index:30}.search-panel.open{display:block}.search-result{display:block;padding:11px;border-radius:8px}.search-result:hover{background:#f1f5f7}.toast{position:fixed;bottom:25px;right:25px;background:#173046;color:#fff;padding:12px 17px;border-radius:9px;display:none;z-index:40}.dark{--bg:#101820;--card:#18242f;--text:#ecf2f5;--muted:#b1c0cc;--line:#30404d}.dark .topbar,.dark .page-intro,.dark .lesson-cover,.dark .lesson-block,.dark .lesson-two-column article,.dark .quick-grid a,.dark .module-card,.dark .mini-module-grid a,.dark .dashboard-stats article,.dark .continue-card,.dark .skill-group,.dark .assessment-card,.dark .assessment-summary,.dark .gallery-card,.dark .resource-grid article,.dark .career-grid article,.dark .why-grid article,.dark .why-copy,.dark .why-stats article{background:var(--card)}.dark .key-point-grid div,.dark .lesson-list a{background:#22313d}.login-page{min-height:100vh;display:grid;place-items:center;padding:24px;background:linear-gradient(145deg,#092d48,#7d3152)}.login-card{width:min(450px,100%);background:#fff;border-radius:24px;padding:38px 36px;box-shadow:0 24px 70px #0005;text-align:center}.login-logo{height:72px;max-width:220px;object-fit:contain;margin-bottom:18px}.login-card h1{margin:0;color:var(--navy);font-size:34px}.login-card h2{margin:7px 0 17px;color:#50677a;font-size:18px}.login-copy,.invite-note{color:#617485;line-height:1.55}.login-card form{text-align:left}.login-card label{display:block;font-size:13px;font-weight:700;margin:13px 0}.login-card input{width:100%;padding:13px;border:1px solid var(--line);border-radius:9px;margin-top:7px}.password-wrap{position:relative}.password-wrap button{position:absolute;right:8px;top:14px;border:0;background:none;color:var(--rose);font-weight:700}.primary-button{width:100%;border:0;border-radius:10px;padding:14px;background:var(--navy);color:#fff;font-weight:800}.invite-note{font-size:11px;border-top:1px solid var(--line);padding-top:14px}.login-message{color:#b42318;font-size:12px}
@media(max-width:1000px){.app{grid-template-columns:1fr}.workspace{grid-column:1}.sidebar{transform:translateX(-100%);transition:.25s}.sidebar.open{transform:none}.menu-button{display:block;border:0;background:none;font-size:22px;margin-right:15px}.top-tools .search-wrap{display:none}.dashboard-stats,.mini-module-grid,.why-stats{grid-template-columns:repeat(2,1fr)}.quick-grid,.gallery-grid,.career-grid,.why-grid{grid-template-columns:repeat(2,1fr)}}
@media(max-width:650px){.page{padding:16px}.topbar{padding:0 15px}.logout-button{display:none}.hero-dashboard{height:auto}.hero-copy{padding:42px 24px}.hero-copy h1{font-size:36px}.profile-row{flex-direction:column}.dashboard-stats,.quick-grid,.mini-module-grid,.module-grid,.gallery-grid,.resource-grid,.assessment-grid,.career-grid,.why-grid,.why-stats,.lesson-two-column{grid-template-columns:1fr}.module-card{grid-template-columns:1fr}.module-card img{height:210px}.key-point-grid{grid-template-columns:1fr}.skill-row{grid-template-columns:1fr repeat(5,38px)}}
@media print{.sidebar,.topbar,.global-progress,.logout-button,.tool-button,.menu-button{display:none!important}.workspace{grid-column:1}.page{max-width:none;padding:0}.lesson-block,.lesson-cover{break-inside:avoid}}


/* Trainer Guide */
.trainer-guide-intro{background:linear-gradient(135deg,#103f63,#71405c);color:#fff;border:0}.trainer-guide-intro p:last-child{color:#edf3f6}.guide-notice{background:#fff6dd;border:1px solid #efdca2;border-radius:14px;padding:18px 20px;margin-bottom:18px}.guide-notice p{margin-bottom:0;color:var(--muted);line-height:1.6}.guide-topic-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:16px}.guide-topic{background:#fff;border:1px solid var(--line);border-radius:16px;padding:22px;position:relative}.guide-topic>span{display:inline-grid;place-items:center;width:38px;height:38px;border-radius:10px;background:#f8e8ee;color:var(--rose);font-weight:800}.guide-topic h2{margin:13px 0 9px;color:var(--navy)}.guide-topic p,.guide-topic li{color:var(--muted);line-height:1.55;font-size:13px}.guide-topic li{margin:7px 0}.guide-summary{margin:24px 0;background:#fff;border:1px solid var(--line);border-radius:17px;padding:24px}.guide-summary h2{margin-top:0}.guide-check-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:10px}.guide-check-grid span{background:#eff6f7;border-radius:9px;padding:12px;color:var(--navy);font-size:12px;font-weight:700}.trainer-slide-section{margin-top:30px}.trainer-slide-section .section-head>span{color:var(--muted);font-size:12px}.trainer-slide-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:14px}.trainer-slide-card{border:1px solid var(--line);border-radius:13px;background:#fff;padding:8px;cursor:pointer;text-align:left;transition:.2s}.trainer-slide-card:hover{transform:translateY(-3px);box-shadow:0 10px 25px #17304618}.trainer-slide-card img{width:100%;aspect-ratio:4/3;object-fit:contain;background:#f4f6f7;border-radius:8px}.trainer-slide-card span{display:block;padding:8px 4px 3px;color:var(--navy);font-weight:800;font-size:11px}.slide-modal{position:fixed;inset:0;background:#071522e8;display:none;align-items:center;justify-content:center;padding:35px;z-index:100}.slide-modal.open{display:flex}.slide-modal img{max-width:94vw;max-height:90vh;object-fit:contain;background:#fff;box-shadow:0 25px 70px #0008}.slide-modal button{position:absolute;top:18px;right:24px;width:43px;height:43px;border:0;border-radius:50%;background:#fff;color:#173046;font-size:28px;cursor:pointer}.dark .guide-topic,.dark .guide-summary,.dark .trainer-slide-card{background:var(--card)}.dark .guide-check-grid span{background:#22313d;color:#eaf2f6}.dark .guide-topic h2,.dark .trainer-slide-card span{color:#f3c7d4}@media(max-width:900px){.trainer-slide-grid{grid-template-columns:repeat(3,1fr)}}@media(max-width:650px){.guide-topic-grid,.guide-check-grid{grid-template-columns:1fr}.trainer-slide-grid{grid-template-columns:repeat(2,1fr)}.slide-modal{padding:12px}}

/* Expanded textbook lesson content */
.lesson-introduction{border-left:5px solid #c99a38;background:linear-gradient(135deg,#fffdf7,#fff)}
.lesson-sections{display:grid;gap:14px}.lesson-sections article{display:grid;grid-template-columns:48px 1fr;gap:15px;padding:17px;border:1px solid var(--line);border-radius:12px;background:#f8fafb}.lesson-sections article>span{width:38px;height:38px;border-radius:50%;display:grid;place-items:center;background:var(--navy);color:#fff;font-weight:800;font-size:12px}.lesson-sections h3{margin:0 0 7px;color:var(--navy)}.lesson-sections p{margin:0;line-height:1.7}
.procedure-block{border-top:4px solid var(--mint)}.procedure-list{counter-reset:step;list-style:none;padding:0;display:grid;gap:10px}.procedure-list li{counter-increment:step;position:relative;padding:13px 15px 13px 56px;background:#f1f7f5;border-radius:10px;line-height:1.55}.procedure-list li:before{content:counter(step);position:absolute;left:13px;top:10px;width:30px;height:30px;border-radius:50%;display:grid;place-items:center;background:var(--mint);color:#fff;font-weight:800}
.mistakes-block{border-top:4px solid #ba3f58}.mistake-list{display:grid;grid-template-columns:1fr 1fr;gap:10px;padding:0;list-style:none}.mistake-list li{padding:13px 14px 13px 39px;background:#fff1f3;border:1px solid #f0cdd4;border-radius:10px;position:relative;line-height:1.5}.mistake-list li:before{content:'×';position:absolute;left:14px;color:#ba3f58;font-size:20px;font-weight:900}
.summary-card{background:linear-gradient(135deg,#103f63,#245e82);color:#fff;border:0}.summary-card .eyebrow{color:#ffd4df}.summary-card h2,.summary-card p{color:#fff}
.dark .lesson-sections article{background:#22313d}.dark .lesson-sections h3{color:#9bd4ef}.dark .procedure-list li{background:#203832}.dark .mistake-list li{background:#442631;border-color:#70404f}
@media(max-width:650px){.mistake-list{grid-template-columns:1fr}.lesson-sections article{grid-template-columns:38px 1fr}.lesson-sections article>span{width:32px;height:32px}}


/* Professional arrangement gallery — full image visibility */
.gallery-grid{
  display:grid;
  grid-template-columns:repeat(3,minmax(0,1fr));
  gap:20px;
  align-items:stretch;
}
.gallery-card{
  display:flex;
  flex-direction:column;
  min-width:0;
  overflow:hidden;
  background:#fff;
  border:1px solid var(--line);
  border-radius:18px;
  box-shadow:0 8px 24px rgba(16,63,99,.07);
  transition:transform .2s ease,box-shadow .2s ease;
}
.gallery-card:hover{
  transform:translateY(-3px);
  box-shadow:0 14px 32px rgba(16,63,99,.12);
}
.gallery-image-wrap{
  width:100%;
  height:430px;
  display:flex;
  align-items:center;
  justify-content:center;
  padding:14px;
  overflow:hidden;
  background:#fff;
  border-bottom:1px solid var(--line);
}
.gallery-card .gallery-image-wrap img{
  display:block;
  width:100%;
  height:100%;
  max-width:100%;
  max-height:100%;
  object-fit:contain;
  object-position:center center;
  background:#fff;
}
.gallery-card-content{
  display:flex;
  flex-direction:column;
  flex:1;
  padding:19px 20px 20px;
}
.gallery-card-content>span{
  color:var(--pink);
  font-size:10px;
  font-weight:800;
  letter-spacing:.08em;
  text-transform:uppercase;
}
.gallery-card-content h3{
  margin:9px 0 8px;
  color:var(--navy);
  font-size:19px;
}
.gallery-card-content p{
  margin:0;
  color:var(--muted);
  font-size:12px;
  line-height:1.6;
}
.gallery-study-points{
  display:flex;
  flex-wrap:wrap;
  gap:6px;
  margin-top:auto;
  padding-top:15px;
}
.gallery-study-points small{
  padding:6px 8px;
  border-radius:999px;
  background:#f2f6f8;
  color:#52677a;
  font-size:9px;
  font-weight:700;
}
.dark .gallery-card,
.dark .gallery-image-wrap{
  background:var(--card);
}
.dark .gallery-card-content h3{
  color:var(--text);
}
.dark .gallery-study-points small{
  background:#22313d;
  color:#d7e2e9;
}
@media(max-width:1180px){
  .gallery-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
  .gallery-image-wrap{height:460px}
}
@media(max-width:700px){
  .gallery-grid{grid-template-columns:1fr}
  .gallery-image-wrap{height:500px;padding:10px}
}
@media(max-width:480px){
  .gallery-image-wrap{height:410px}
}

/* Firebase Authentication */
html.auth-pending body:not(.login-page){
  visibility:hidden;
}
html.auth-pending body:not(.login-page)::before{
  content:"Checking student access…";
  visibility:visible;
  position:fixed;
  inset:0;
  z-index:9999;
  display:grid;
  place-items:center;
  background:#f3f6f8;
  color:#103f63;
  font:700 15px Arial, sans-serif;
}
.login-message{
  min-height:20px;
  margin-top:12px;
  line-height:1.45;
}
.login-message.error{color:#b42318}
.login-message.info{color:#315c7b}
.login-message.success{color:#087443}
.primary-button:disabled{
  cursor:wait;
  opacity:.72;
}
.noscript-warning{
  position:fixed;
  top:0;
  left:0;
  right:0;
  padding:12px;
  background:#b42318;
  color:#fff;
  text-align:center;
  z-index:9999;
}