:root{--navy:#0a1f3d;--navy2:#15386a;--green:#1f6b4a;--green2:#8fcfac;--cream:#f7faf8;--bg:#f2f5f4;--card:#fff;--line:#dbe3df;--text:#1b2230;--mut:#5a6372;--ok:#1f8a4c;--bad:#c0392b}
*{box-sizing:border-box}body{margin:0;font-family:system-ui,-apple-system,"Segoe UI",Roboto,Arial,sans-serif;background:var(--bg);color:var(--text);line-height:1.55}
.wrap{max-width:1140px;margin:0 auto;padding:0 20px}a{color:var(--navy2)}
.top{background:var(--navy);color:#fff;position:sticky;top:0;z-index:5}.nav{display:flex;align-items:center;justify-content:space-between;flex-wrap:wrap;gap:10px;padding:12px 20px}
.brand{display:flex;gap:12px;align-items:center;color:#fff;text-decoration:none}.brand small{display:block;color:#c8d3e3;font-size:12px}
.logo{background:var(--green);color:var(--navy);font-weight:800;border-radius:8px;width:42px;height:42px;display:grid;place-items:center;font-size:18px}
nav{display:flex;gap:6px;flex-wrap:wrap}nav a{color:#e6ecf5;text-decoration:none;padding:7px 12px;border-radius:6px;font-size:14px}nav a:hover,nav a.on{background:var(--navy2)}
.hero{background:linear-gradient(135deg,var(--navy),var(--navy2));color:#fff;border-radius:16px;padding:48px 36px;margin:28px 0}
.hero h1{font-size:clamp(28px,4vw,42px);margin:0 0 10px}.hero p{max-width:640px;color:#d8e1ee;font-size:18px}
.btn{display:inline-block;background:var(--green);color:var(--navy);border:0;padding:11px 20px;border-radius:8px;font-weight:700;cursor:pointer;text-decoration:none;font-size:15px}
.btn.sec{background:#fff;color:var(--navy);border:1px solid var(--line)}.btn.sm{padding:6px 12px;font-size:13px}.btn:disabled{opacity:.5;cursor:default}
.grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(250px,1fr));gap:18px}
.card{background:var(--card);border:1px solid var(--line);border-radius:12px;padding:20px}
.card h3{margin:6px 0 8px}.tag{display:inline-block;font-size:12px;font-weight:700;color:var(--navy2);background:#e8eef7;border-radius:20px;padding:3px 10px}
.muted{color:var(--mut);font-size:14px}.bar{height:8px;background:#e6eaf0;border-radius:6px;overflow:hidden;margin:10px 0}.bar i{display:block;height:100%;background:var(--ok)}
.steps{display:grid;grid-template-columns:repeat(auto-fit,minmax(220px,1fr));gap:16px;margin:24px 0}.steps .card b{color:var(--green);font-size:28px}
h2{margin:30px 0 14px}
.layout{display:grid;grid-template-columns:290px 1fr;gap:22px;margin:24px 0}@media(max-width:820px){.layout{grid-template-columns:1fr}}
.side{background:#fff;border:1px solid var(--line);border-radius:12px;padding:12px;max-height:80vh;overflow:auto;position:sticky;top:84px}
.side .mh{font-weight:700;font-size:14px;margin:12px 6px 4px;color:var(--navy)}.side a{display:block;padding:5px 8px;border-radius:6px;font-size:14px;text-decoration:none;color:var(--text)}
.side a.on{background:#e8eef7;font-weight:600}.side a.done:before{content:"✓ ";color:var(--ok)}
.lesson{background:#fff;border:1px solid var(--line);border-radius:12px;padding:28px}.lesson h4{color:var(--navy);margin:22px 0 6px}
.tw{overflow-x:auto}table{border-collapse:collapse;width:100%;margin:12px 0;font-size:14px}th,td{border:1px solid var(--line);padding:7px 9px;text-align:left;vertical-align:top}th{background:#eef2f7}
.note{background:#eef6f1;border-left:4px solid var(--green);padding:10px 14px;margin:12px 0;border-radius:6px;font-size:14px}.note.warn{background:#fdecea;border-color:var(--bad)}
pre{background:#0f1b2d;color:#d7e3f4;padding:12px;border-radius:8px;overflow:auto;font-size:13px}dt{font-weight:700;margin-top:8px}dd{margin:0 0 4px 0}
.q{border:1px solid var(--line);border-radius:10px;padding:14px 16px;margin:12px 0;background:#fff}.q label{display:block;padding:5px 6px;border-radius:6px;cursor:pointer}.q label:hover{background:#f2f5f9}
.q.right{border-color:var(--ok);background:#f1faf4}.q.wrong{border-color:var(--bad);background:#fdf3f2}.q textarea{width:100%;min-height:60px}
.form{max-width:440px;margin:30px auto}.form input,.form select,.form textarea,.fld{width:100%;padding:10px;border:1px solid var(--line);border-radius:8px;font:inherit;margin:4px 0 12px}
.form label{font-weight:600;font-size:14px}.err{color:var(--bad);font-size:14px}.ok{color:var(--ok)}
.pill{font-size:12px;padding:2px 8px;border-radius:10px;background:#eee}.pill.g{background:#dff3e6;color:var(--ok)}.pill.y{background:#fff3cd;color:#8a6d00}
.loc{background:#e8eef7;border-radius:10px;padding:14px 16px;margin:12px 0}.foot{margin-top:40px;padding:24px 0;background:#0b1a31;color:#c8d3e3;font-size:14px}
.row{display:flex;gap:10px;flex-wrap:wrap;align-items:center}.slots{display:flex;flex-wrap:wrap;gap:8px;margin:6px 0 14px}.slots button{padding:8px 12px;border:1px solid var(--line);background:#fff;border-radius:8px;cursor:pointer}.slots button.on{background:var(--navy);color:#fff}

.tracks{display:grid;grid-template-columns:repeat(auto-fit,minmax(260px,1fr));gap:16px;margin:12px 0 24px}.track .ti{font-size:30px}.track ul{padding-left:18px;margin:8px 0 14px}.tracks-pick{display:flex;flex-wrap:wrap;gap:6px}.small{font-size:12px}.foot .muted{color:#c8d3e3}
.parts{columns:2;margin:6px 0 14px}

.foot a{color:#f0f4fa;text-decoration:underline}
.foot a:hover{color:#fff}

.brands-card h2{margin-top:0}
.topic-list{columns:2;gap:24px;padding-left:18px}
@media(max-width:640px){.topic-list{columns:1}}
.contact-card{background:#f7f9fc}
.hero .btn.sec{background:rgba(255,255,255,.12);color:#fff;border-color:rgba(255,255,255,.35)}
.hero .muted a{color:#fff}

.work-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(180px,1fr));gap:12px;margin-top:14px}
.work-item{margin:0;background:#eef2f7;border-radius:10px;overflow:hidden;border:1px solid var(--line)}
.work-item img{display:block;width:100%;height:160px;object-fit:cover;cursor:zoom-in}
.work-item figcaption{padding:8px 10px;font-size:12px;color:#445;line-height:1.3}
.work-teaser .work-item img{cursor:pointer}
.lightbox{position:fixed;inset:0;background:rgba(10,20,40,.88);display:flex;align-items:center;justify-content:center;z-index:99;padding:20px}
.lightbox img{max-width:min(960px,96vw);max-height:90vh;border-radius:8px;box-shadow:0 10px 40px rgba(0,0,0,.4)}
.lightbox button{position:absolute;top:16px;right:16px;background:#fff;border:0;border-radius:8px;padding:8px 12px;font-weight:700;cursor:pointer}

/* elegant refresh */
h1,h2,h3{color:var(--navy);letter-spacing:-.01em}.hero h1{color:#fff}
h2{position:relative;padding-bottom:10px}h2:after{content:"";position:absolute;left:0;bottom:0;width:44px;height:2px;background:var(--green)}
.top{background:var(--navy);border-bottom:1px solid rgba(143,207,172,.35)}
nav a{transition:background .2s,color .2s}nav a:hover,nav a.on{background:rgba(255,255,255,.08);color:var(--green2)}
.logo{background:linear-gradient(135deg,#2a8a5f,var(--green));color:#fff}
.hero{background:radial-gradient(120% 140% at 85% 0%,#1e4a85 0%,var(--navy2) 35%,var(--navy) 80%);border:1px solid rgba(143,207,172,.25);box-shadow:0 18px 40px -24px rgba(11,31,58,.6)}
.hero p{color:#dfe5ef}
.btn{background:var(--green);color:#fff;letter-spacing:.02em;transition:background .2s,transform .1s}.btn:hover{background:#17553a}
.btn.sec{background:#fff;color:var(--navy);border:1px solid var(--line)}.btn.sec:hover{border-color:var(--green);background:var(--cream)}
.card{border-color:var(--line);border-radius:14px;box-shadow:0 1px 2px rgba(11,31,58,.04),0 8px 24px -18px rgba(11,31,58,.25)}
.tag{background:var(--cream);color:var(--navy);border:1px solid var(--line)}
.steps .card b{color:var(--green)}.note{background:var(--cream)}
a{color:var(--navy2)}a:hover{color:var(--green)}
.brands-card{background:linear-gradient(160deg,var(--navy),var(--navy2));color:#fff;border-radius:18px;padding:48px 40px;margin:36px 0;border:1px solid rgba(143,207,172,.28);box-shadow:0 20px 48px -28px rgba(8,23,44,.55)}
.brands-card .eyebrow{display:block;text-transform:uppercase;letter-spacing:.28em;font-size:11px;color:var(--green2);font-weight:600;margin-bottom:4px}
.brands-card h2{color:#fff;margin:8px 0 36px;font-weight:500;letter-spacing:.01em;font-size:clamp(22px,2.4vw,28px)}.brands-card h2:after{background:var(--green2);width:56px}
.brand-groups{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:36px 40px}
@media(max-width:900px){.brand-groups{grid-template-columns:1fr;gap:32px}}
.brand-group{padding:4px 0}
.brand-group h3{font-size:11px;text-transform:uppercase;letter-spacing:.2em;color:#a8b6c9;font-weight:600;margin:0 0 18px;padding-bottom:10px;border-bottom:1px solid rgba(143,207,172,.22)}
.brand-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:12px 14px;margin-top:0}
@media(max-width:520px){.brand-grid{grid-template-columns:1fr}}
.brand-chip{display:flex;align-items:center;justify-content:center;text-align:center;background:rgba(250,247,242,.96);color:var(--navy);border:1px solid rgba(143,207,172,.45);padding:14px 16px;border-radius:8px;font-weight:600;font-size:13px;letter-spacing:.08em;line-height:1.25;min-height:48px;box-sizing:border-box}
.brands-card .brand-chip{transition:border-color .2s,background .2s}.brands-card .brand-chip:hover{border-color:var(--green2);background:#fff}
.work-item{margin:0;background:#fff;border:1px solid var(--line);border-radius:12px;overflow:hidden}
.work-item figcaption{padding:9px 12px;font-size:13px;color:var(--navy);border-top:2px solid var(--green2);background:var(--cream)}
.foot{background:#08172c;border-top:2px solid var(--green)}.foot a{color:var(--green2)}

.brand-groups{grid-template-columns:repeat(2,minmax(0,1fr));gap:28px}
@media(max-width:900px){.brand-groups{grid-template-columns:1fr}}
.brand-group{background:rgba(255,255,255,.04);border:1px solid rgba(143,207,172,.22);border-radius:14px;padding:26px 24px}
.brand-group h3{font-size:18px;letter-spacing:.06em;text-transform:none;color:#fff;font-weight:600}
.brand-group h3 small{display:block;margin-top:6px;font-size:10.5px;letter-spacing:.24em;text-transform:uppercase;color:var(--green2);font-weight:600}
.brand-group:last-child{grid-column:1/-1}.brand-group:last-child .brand-grid{grid-template-columns:repeat(4,minmax(0,1fr))}
@media(max-width:900px){.brand-group:last-child .brand-grid{grid-template-columns:repeat(2,minmax(0,1fr))}}
.brand-chip{font-size:12.5px;letter-spacing:.05em;min-height:44px;padding:12px}