:root{--g:#075c3a;--gd:#043d28;--gold:#d7aa49;--cream:#f7f3e9;--text:#173328;--muted:#65756d;--line:#e2e8e4;--shadow:0 15px 45px rgba(4,61,40,.10)}
*{box-sizing:border-box}.ifa-app{font-family:Arial,Helvetica,sans-serif;color:var(--text);background:#fff;min-height:100vh}.ifa-wrap{width:min(1180px,92%);margin:auto}.ifa-head{background:#fff;border-bottom:1px solid var(--line);position:sticky;top:0;z-index:999}.ifa-headin{display:flex;align-items:center;justify-content:space-between;gap:22px;padding:10px 0}.ifa-head img{height:56px;width:auto}.ifa-head nav{display:flex;gap:18px;flex-wrap:wrap}.ifa-head a{color:var(--g);font-weight:800;text-decoration:none}.ifa-footer{margin-top:50px;background:var(--gd);color:#fff;padding:24px 0}.ifa-footer .ifa-wrap{display:flex;justify-content:space-between;gap:18px;flex-wrap:wrap}.ifa-footer span{opacity:.88}.ifa-login{min-height:calc(100vh - 105px);display:grid;grid-template-columns:1.1fr .9fr;background:var(--cream)}.ifa-login-bg{background:url('hero.jpg') center/cover no-repeat;min-height:650px}.ifa-login-card{padding:70px 10%;align-self:center}.ifa-login-card>img{width:250px;max-width:80%;margin-bottom:24px}.ifa-kicker{display:block;color:var(--gold);font-weight:900;text-transform:uppercase;letter-spacing:.08em;font-size:13px}.ifa-login h1,.ifa-hero h1,.ifa-course-head h1,.ifa-panel h2,.ifa-block h2{font-family:Georgia,serif;color:var(--gd)}.ifa-login h1{font-size:48px;line-height:1.04;margin:10px 0}.ifa-login p{color:var(--muted);font-size:17px;line-height:1.6}.ifa-login form,.ifa-form{display:grid;gap:12px}.ifa-login input,.ifa-form input,.ifa-form textarea{width:100%;padding:14px;border:1px solid #cbd8d1;border-radius:10px;font:inherit;background:#fff}.ifa-form textarea{min-height:110px}.ifa-btn{display:inline-flex;align-items:center;justify-content:center;background:var(--g);color:#fff!important;padding:12px 18px;border-radius:10px;border:0;font-weight:900;text-decoration:none;cursor:pointer}.ifa-btn.gold{background:var(--gold);color:#173328!important}.ifa-main{min-height:70vh}.ifa-hero,.ifa-course-head{padding:54px 0;background:linear-gradient(120deg,#fdfcf8,#eef7f1)}.ifa-hero.small{padding:38px 0}.ifa-hero h1,.ifa-course-head h1{font-size:46px;margin:10px 0}.ifa-hero p,.ifa-course-head p{max-width:760px;color:var(--muted);font-size:17px;line-height:1.6}.ifa-panel{margin:34px 0}.ifa-panel h2,.ifa-block h2{font-size:32px}.ifa-course-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}.ifa-course-card{background:#fff;border:1px solid var(--line);border-radius:18px;overflow:hidden;box-shadow:var(--shadow)}.ifa-course-card img{width:100%;height:210px;object-fit:cover}.ifa-course-card>div{padding:20px}.ifa-course-card h3{font-family:Georgia,serif;color:var(--gd);font-size:25px;margin:8px 0}.ifa-course-card p{color:var(--muted);line-height:1.55}.ifa-pill{display:inline-flex;padding:6px 10px;border-radius:999px;background:#edf7f1;color:var(--g);font-weight:800;font-size:12px}.ifa-progress{height:8px;border-radius:99px;background:#e5eee9;overflow:hidden}.ifa-progress i{display:block;height:100%;background:var(--gold)}.ifa-progress.large{max-width:700px;height:12px}.ifa-course-layout{display:grid;grid-template-columns:280px 1fr;gap:28px;padding-top:32px}.ifa-lessons{background:#f7faf8;border:1px solid var(--line);border-radius:16px;padding:18px;height:max-content;position:sticky;top:92px}.ifa-lessons h3{margin-top:0}.ifa-lesson-link{display:flex;gap:9px;padding:12px;border-radius:10px;color:var(--text);text-decoration:none;border-bottom:1px solid #e8edea}.ifa-lesson-link.active{background:var(--g);color:#fff;font-weight:800}.ifa-content{min-width:0}.ifa-lesson,.ifa-block{background:#fff;border:1px solid var(--line);border-radius:18px;padding:24px;margin-bottom:24px;box-shadow:0 5px 25px rgba(4,61,40,.05)}.ifa-lesson h2{font-family:Georgia,serif;font-size:34px;color:var(--gd)}.ifa-video{position:relative;padding-top:56.25%;margin:18px 0;border-radius:16px;overflow:hidden;background:#000}.ifa-video iframe{position:absolute;inset:0;width:100%;height:100%}.ifa-rich{line-height:1.75;color:#3c5046}.ifa-rich img{max-width:100%;height:auto;border-radius:12px}.ifa-assignment{padding:18px;border:1px solid var(--line);border-radius:14px;margin:14px 0;background:#fbfdfc}.ifa-success{padding:12px;border-radius:10px;background:#edf8f1;color:#24623f}.ifa-q{padding:18px 0;border-bottom:1px solid var(--line)}.ifa-q h3{font-family:Georgia,serif;color:var(--gd);font-size:23px}.ifa-answer{margin:14px 0;padding:14px;border-left:4px solid var(--gold);background:#faf7ef;border-radius:8px}.ifa-answer-img{max-width:100%;border-radius:10px}.ifa-form.compact{background:#f7faf8;padding:14px;border-radius:12px}.ifa-stat-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:14px}.ifa-stat{border:1px solid var(--line);border-radius:16px;padding:20px;background:#fff}.ifa-stat strong{display:block;font-size:34px;color:var(--g)}.ifa-stat span,.ifa-stat small{display:block;color:var(--muted)}.ifa-stat b{display:block;margin:10px 0}.ifa-empty{padding:28px;border:1px dashed #adc7b8;border-radius:16px;background:#f8fbf9}.ifa-back{display:inline-block;margin-bottom:16px;color:var(--g);font-weight:800;text-decoration:none}.ifa-faq-list{padding-top:30px}.ifa-faq{margin:0 0 18px;padding:22px;border:1px solid var(--line);border-radius:16px;background:#fff}.ifa-faq h3{font-family:Georgia,serif;color:var(--gd);font-size:25px;margin-top:0}.ifa-install{position:fixed;right:18px;bottom:18px;z-index:9999;border:0;background:var(--gold);color:#173328;padding:12px 16px;border-radius:999px;font-weight:900;box-shadow:0 8px 25px rgba(0,0,0,.18);display:none}
@media(max-width:900px){.ifa-course-grid{grid-template-columns:1fr 1fr}.ifa-course-layout{grid-template-columns:1fr}.ifa-lessons{position:relative;top:auto}.ifa-login{grid-template-columns:1fr}.ifa-login-bg{min-height:300px}.ifa-stat-grid{grid-template-columns:1fr 1fr}}
@media(max-width:640px){.ifa-headin{display:block}.ifa-head img{height:48px}.ifa-head nav{display:grid;grid-template-columns:repeat(3,1fr);gap:6px;margin-top:8px}.ifa-head a{text-align:center;font-size:12px;padding:8px;border:1px solid var(--line);border-radius:8px}.ifa-login-card{padding:34px 6%}.ifa-login h1,.ifa-hero h1,.ifa-course-head h1{font-size:36px}.ifa-login-bg{min-height:220px}.ifa-course-grid,.ifa-stat-grid{grid-template-columns:1fr}.ifa-course-card img{height:190px}.ifa-footer .ifa-wrap{display:block}.ifa-footer span{display:block;margin-top:8px}.ifa-install{right:10px;bottom:10px;font-size:12px}}
.ifa-table-wrap{overflow:auto}.ifa-table{width:100%;border-collapse:collapse;margin:12px 0}.ifa-table th,.ifa-table td{padding:11px;border-bottom:1px solid var(--line);text-align:left}.ifa-teacher-tools{display:grid;grid-template-columns:1fr 1fr;gap:14px;margin-top:18px}.ifa-teacher-tools details{border:1px solid var(--line);border-radius:12px;padding:14px;background:#f8fbf9}.ifa-teacher-tools summary{font-weight:900;color:var(--g);cursor:pointer;margin-bottom:12px}@media(max-width:700px){.ifa-teacher-tools{grid-template-columns:1fr}}