:root{--primary:#004519;--primary-dark:#003313;--primary-light:#076633;--accent:#FFB606;--bg:#f7f9f7;--text:#1a1a1a;--muted:#6b7280;--border:#e5e7eb;--card:#fff;--radius:6px;--shadow-sm:0 1px 2px rgba(0,0,0,.05);--shadow-md:0 4px 12px rgba(0,0,0,.08);--shadow-lg:0 10px 30px rgba(0,0,0,.12);--container:1200px}
*{box-sizing:border-box;margin:0;padding:0}html{scroll-behavior:smooth}body{font-family:'Inter',-apple-system,BlinkMacSystemFont,'Segoe UI',Roboto,Arial,sans-serif;font-size:16px;line-height:1.6;color:var(--text);background:var(--bg);-webkit-font-smoothing:antialiased}
img{max-width:100%;height:auto;display:block}a{color:var(--primary);text-decoration:none}a:hover{text-decoration:underline}button{cursor:pointer;font-family:inherit}input,textarea,select{font-family:inherit;font-size:inherit}
.container{max-width:var(--container);margin:0 auto;padding:0 20px}.font-serif{font-family:'Playfair Display',Georgia,serif}
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;padding:10px 20px;border-radius:var(--radius);border:none;font-weight:600;font-size:14px;transition:all .2s;cursor:pointer;text-decoration:none;white-space:nowrap}
.btn:hover{text-decoration:none;transform:translateY(-1px)}.btn-primary{background:var(--primary);color:#fff}.btn-primary:hover{background:var(--primary-dark);color:#fff}
.btn-accent{background:var(--accent);color:var(--primary-dark)}.btn-accent:hover{background:#e5a505;color:var(--primary-dark)}
.btn-outline{background:transparent;color:var(--primary);border:1.5px solid var(--primary)}.btn-outline:hover{background:var(--primary);color:#fff}
.btn-ghost{background:transparent;color:var(--text)}.btn-ghost:hover{background:rgba(0,0,0,.05)}
.btn-danger{background:#dc2626;color:#fff}.btn-sm{padding:6px 12px;font-size:12px}.btn-lg{padding:14px 28px;font-size:16px}.btn-block{width:100%}.btn:disabled{opacity:.6;cursor:not-allowed;transform:none}
.navbar{position:sticky;top:0;z-index:50;background:rgba(255,255,255,.95);backdrop-filter:blur(8px);border-bottom:1px solid var(--border)}
.navbar .container{display:flex;align-items:center;justify-content:space-between;height:64px}
.navbar-logo{background:#fff;padding:4px 8px;border-radius:6px}.navbar-logo img{height:44px;width:auto;object-fit:contain}
.navbar-nav{display:flex;align-items:center;gap:4px}.navbar-nav a{padding:8px 14px;border-radius:var(--radius);color:var(--text);font-weight:500;font-size:14px;text-decoration:none;transition:all .15s}
.navbar-nav a:hover,.navbar-nav a.active{background:rgba(0,69,25,.08);color:var(--primary)}.navbar-toggle{display:none;background:transparent;border:none;padding:8px}
@media(max-width:900px){.navbar-nav{display:none;position:absolute;top:64px;left:0;right:0;flex-direction:column;background:#fff;border-bottom:1px solid var(--border);padding:12px;align-items:stretch}.navbar-nav.open{display:flex}.navbar-toggle{display:block}}
.badge{display:inline-flex;align-items:center;padding:2px 8px;border-radius:4px;font-size:11px;font-weight:600;letter-spacing:.3px;text-transform:uppercase;background:var(--primary);color:#fff}
.badge-outline{background:transparent;color:var(--text);border:1px solid var(--border)}.badge-accent{background:var(--accent);color:var(--primary-dark)}.badge-success{background:#15803d;color:#fff}.badge-warning{background:#ca8a04;color:#fff}.badge-danger{background:#b91c1c;color:#fff}.badge-secondary{background:#e5e7eb;color:#374151}
.card{background:var(--card);border-radius:var(--radius);border:1px solid var(--border);box-shadow:var(--shadow-sm);transition:box-shadow .2s,transform .2s}.card:hover{box-shadow:var(--shadow-md)}.card-body{padding:20px}.card-header{padding:16px 20px;border-bottom:1px solid var(--border)}.card-title{font-size:16px;font-weight:600;color:var(--primary)}.card-footer{padding:12px 20px;border-top:1px solid var(--border);background:#fafbfa}
.form-group{margin-bottom:16px}.form-label{display:block;margin-bottom:6px;font-size:13px;font-weight:500;color:var(--text)}
.form-control{width:100%;padding:10px 14px;border:1px solid var(--border);border-radius:var(--radius);background:#fff;font-size:14px;transition:border-color .15s,box-shadow .15s}
.form-control:focus{outline:none;border-color:var(--primary);box-shadow:0 0 0 3px rgba(0,69,25,.1)}.form-control:disabled{background:#f3f4f6;color:var(--muted)}
textarea.form-control{min-height:80px;resize:vertical}select.form-control{cursor:pointer}.form-hint{font-size:12px;color:var(--muted);margin-top:4px}
.alert{padding:12px 16px;border-radius:var(--radius);margin-bottom:16px;font-size:14px;display:flex;align-items:center;gap:10px}
.alert-success{background:#dcfce7;color:#14532d;border:1px solid #86efac}.alert-error{background:#fee2e2;color:#7f1d1d;border:1px solid #fca5a5}.alert-warning{background:#fef3c7;color:#78350f;border:1px solid #fcd34d}.alert-info{background:#dbeafe;color:#1e3a8a;border:1px solid #93c5fd}
.section{padding:60px 0}.section-muted{background:#f0f4f0}.section-dark{background:var(--primary-dark);color:#fff}
.section-header{text-align:center;margin-bottom:40px}.section-header h2{font-size:32px;font-weight:700;color:var(--primary);margin-bottom:12px}.section-header p{font-size:16px;color:var(--muted);max-width:700px;margin:0 auto}
.section-eyebrow{display:inline-flex;align-items:center;gap:6px;padding:4px 12px;background:rgba(0,69,25,.1);color:var(--primary);font-size:11px;font-weight:600;text-transform:uppercase;letter-spacing:1px;border-radius:999px;margin-bottom:12px}
.grid{display:grid;gap:20px}.grid-2{grid-template-columns:repeat(2,1fr)}.grid-3{grid-template-columns:repeat(3,1fr)}.grid-4{grid-template-columns:repeat(4,1fr)}
@media(max-width:900px){.grid-3,.grid-4{grid-template-columns:repeat(2,1fr)}}@media(max-width:600px){.grid-2,.grid-3,.grid-4{grid-template-columns:1fr}}
.hero{background:linear-gradient(135deg,var(--primary) 0%,var(--primary-dark) 100%);color:#fff;padding:80px 0;position:relative;overflow:hidden}
.hero::before{content:'';position:absolute;inset:0;background-image:radial-gradient(circle at 1px 1px,rgba(255,255,255,.1) 1px,transparent 0);background-size:32px 32px;opacity:.5}
.hero .container{position:relative;z-index:1}.hero h1{font-size:48px;font-weight:700;line-height:1.1;margin-bottom:20px}.hero h1 .accent{color:var(--accent)}
.hero p{font-size:18px;opacity:.9;margin-bottom:28px;max-width:600px}
.hero-stats{display:grid;grid-template-columns:repeat(3,1fr);gap:20px;margin-top:32px;padding-top:32px;border-top:1px solid rgba(255,255,255,.2)}
.hero-stat .num{font-size:28px;font-weight:700;color:var(--accent)}.hero-stat .label{font-size:11px;text-transform:uppercase;letter-spacing:1px;opacity:.7}
@media(max-width:768px){.hero h1{font-size:32px}}
.logo-container{background:#fff;border-radius:8px;padding:12px;display:inline-flex;align-items:center;justify-content:center;border:1px solid var(--border)}
.logo-container img{max-width:100%;max-height:100%;object-fit:contain}
.service-card{display:flex;flex-direction:column;gap:12px}.service-card .icon{width:44px;height:44px;border-radius:8px;background:rgba(0,69,25,.1);color:var(--primary);display:flex;align-items:center;justify-content:center;font-size:20px;font-weight:bold}
.service-card:hover .icon{background:var(--primary);color:#fff}
.course-card{overflow:hidden;cursor:pointer}.course-card .course-image{aspect-ratio:16/9;background:linear-gradient(135deg,rgba(0,69,25,.1),rgba(255,182,6,.1));position:relative;display:flex;align-items:center;justify-content:center}
.course-card .course-image img{width:100%;height:100%;object-fit:cover}.course-card .course-price{font-size:22px;font-weight:700;color:var(--primary)}
.course-card .course-meta{display:flex;flex-wrap:wrap;gap:12px;font-size:12px;color:var(--muted)}
.live-wrapper{background:linear-gradient(135deg,var(--primary-dark),var(--primary));color:#fff}.live-video{aspect-ratio:16/9;background:#000;border-radius:8px;overflow:hidden}.live-video iframe{width:100%;height:100%;border:0}
.live-chat{background:rgba(255,255,255,.05);border-radius:8px;border:1px solid rgba(255,255,255,.1);max-height:500px;display:flex;flex-direction:column}
.live-chat-header{padding:12px 16px;border-bottom:1px solid rgba(255,255,255,.1);font-weight:600}.live-chat-body{padding:12px;overflow-y:auto;flex:1;max-height:350px}.live-chat-footer{padding:12px;border-top:1px solid rgba(255,255,255,.1)}
.live-question{padding:10px;border-radius:6px;background:rgba(255,255,255,.05);border:1px solid rgba(255,255,255,.1);margin-bottom:8px}
.live-question.pinned{background:rgba(255,182,6,.15);border-color:rgba(255,182,6,.4)}.live-question.answered{background:rgba(34,197,94,.15);border-color:rgba(34,197,94,.3)}
.tabs{display:flex;gap:4px;border-bottom:2px solid var(--border);margin-bottom:24px}.tab{padding:12px 20px;background:transparent;border:none;border-bottom:2px solid transparent;margin-bottom:-2px;color:var(--muted);font-weight:500;cursor:pointer;transition:all .15s;text-decoration:none;display:inline-block}
.tab.active{color:var(--primary);border-bottom-color:var(--primary)}.tab:hover{color:var(--primary)}
.table{width:100%;border-collapse:collapse;font-size:14px}.table th{text-align:left;padding:12px 16px;background:#f5f7f5;font-weight:600;color:var(--text);border-bottom:2px solid var(--border);text-transform:uppercase;font-size:12px;letter-spacing:.5px}
.table td{padding:12px 16px;border-bottom:1px solid var(--border)}.table tr:hover td{background:rgba(0,69,25,.02)}.table-wrap{overflow-x:auto}
.admin-layout{min-height:100vh;background:#f0f4f0}.admin-header{background:var(--primary);color:#fff;padding:0 20px;height:56px;display:flex;align-items:center;justify-content:space-between;box-shadow:var(--shadow-md);position:sticky;top:0;z-index:40}
.admin-header-brand{display:flex;align-items:center;gap:12px}.admin-header-brand img{height:36px;background:#fff;padding:3px;border-radius:4px}.admin-header-brand .title{font-weight:600;font-size:14px}.admin-header-brand .subtitle{font-size:10px;opacity:.8;text-transform:uppercase;letter-spacing:1px}
.admin-body{display:flex;max-width:1400px;margin:0 auto}.admin-sidebar{width:220px;padding:20px 12px}.admin-sidebar a{display:flex;align-items:center;gap:10px;padding:10px 14px;border-radius:var(--radius);color:var(--text);font-weight:500;font-size:14px;text-decoration:none;margin-bottom:2px;transition:all .15s}
.admin-sidebar a:hover{background:rgba(0,0,0,.05)}.admin-sidebar a.active{background:var(--primary);color:#fff}.admin-content{flex:1;padding:24px 32px;min-width:0}
@media(max-width:900px){.admin-sidebar{width:100%;display:flex;overflow-x:auto;padding:8px}.admin-sidebar a{white-space:nowrap}.admin-body{flex-direction:column}}
.footer{background:var(--primary-dark);color:rgba(255,255,255,.8);padding:48px 0 24px;margin-top:auto}
.footer h4{color:#fff;font-size:14px;font-weight:600;margin-bottom:16px;text-transform:uppercase;letter-spacing:1px;display:flex;align-items:center;gap:8px}
.footer h4::before{content:'';width:16px;height:2px;background:var(--accent)}.footer a{color:rgba(255,255,255,.8)}.footer a:hover{color:var(--accent)}
.footer .grid{display:grid;grid-template-columns:2fr 1fr 1fr 1fr;gap:32px}@media(max-width:768px){.footer .grid{grid-template-columns:1fr}}
.footer-social{display:flex;gap:8px;margin-top:12px}.footer-social a{width:36px;height:36px;border-radius:6px;background:rgba(255,255,255,.1);display:flex;align-items:center;justify-content:center}.footer-social a:hover{background:var(--accent);color:var(--primary-dark)}
.footer-bottom{margin-top:32px;padding-top:20px;border-top:1px solid rgba(255,255,255,.1);font-size:12px;display:flex;justify-content:space-between;flex-wrap:wrap;gap:12px}
.text-center{text-align:center}.text-right{text-align:right}.text-muted{color:var(--muted)}.text-primary{color:var(--primary)}.text-accent{color:var(--accent)}.text-danger{color:#b91c1c}.text-success{color:#15803d}
.text-sm{font-size:12px}.text-xs{font-size:11px}.text-lg{font-size:18px}.text-xl{font-size:24px}.text-2xl{font-size:32px}
.font-bold{font-weight:700}.font-semibold{font-weight:600}
.mt-1{margin-top:4px}.mt-2{margin-top:8px}.mt-3{margin-top:12px}.mt-4{margin-top:16px}.mt-6{margin-top:24px}.mt-8{margin-top:32px}
.mb-1{margin-bottom:4px}.mb-2{margin-bottom:8px}.mb-3{margin-bottom:12px}.mb-4{margin-bottom:16px}.mb-6{margin-bottom:24px}.mb-8{margin-bottom:32px}
.flex{display:flex}.flex-col{flex-direction:column}.items-center{align-items:center}.justify-between{justify-content:space-between}
.gap-1{gap:4px}.gap-2{gap:8px}.gap-3{gap:12px}.gap-4{gap:16px}.flex-wrap{flex-wrap:wrap}.w-full{width:100%}.hidden{display:none}
.line-clamp-2{display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.line-clamp-3{display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden}
.modal-backdrop{position:fixed;inset:0;background:rgba(0,0,0,.5);z-index:100;display:flex;align-items:center;justify-content:center;padding:20px}
.modal{background:#fff;border-radius:8px;max-width:600px;width:100%;max-height:90vh;overflow-y:auto;box-shadow:var(--shadow-lg)}
.modal-header{padding:16px 20px;border-bottom:1px solid var(--border);display:flex;align-items:center;justify-content:space-between}.modal-body{padding:20px}.modal-footer{padding:16px 20px;border-top:1px solid var(--border);display:flex;justify-content:flex-end;gap:8px}
.izipay-wrapper{max-width:600px;margin:60px auto;padding:20px}.izipay-wrapper h1{color:var(--primary);margin-bottom:20px}