:root{
  --primary:#6366f1;--primary-dark:#4f46e5;--primary-light:#818cf8;
  --secondary:#f59e0b;--accent:#10b981;--danger:#ef4444;--success:#22c55e;
  --bg:#020617;--bg-2:#0a0f1f;--card:#0f172a;--card-2:#1e293b;--card-hover:#334155;
  --border:rgba(99,102,241,0.15);--border-2:rgba(255,255,255,0.08);
  --text:#f8fafc;--text-muted:#94a3b8;--text-dim:#64748b;
  --gradient:linear-gradient(135deg,#6366f1 0%,#8b5cf6 50%,#ec4899 100%);
  --gradient-2:linear-gradient(135deg,#f59e0b 0%,#ef4444 100%);
  --gradient-3:linear-gradient(135deg,#10b981 0%,#06b6d4 100%);
  --shadow-glow:0 0 40px rgba(99,102,241,0.25);
}
*{margin:0;padding:0;box-sizing:border-box}
html{scroll-behavior:smooth}
body{font-family:'Inter','Plus Jakarta Sans',system-ui,-apple-system,sans-serif;background:var(--bg);color:var(--text);line-height:1.6;overflow-x:hidden;-webkit-font-smoothing:antialiased}
::-webkit-scrollbar{width:10px;height:10px}
::-webkit-scrollbar-track{background:var(--bg-2)}
::-webkit-scrollbar-thumb{background:var(--card-2);border-radius:10px}
::-webkit-scrollbar-thumb:hover{background:var(--primary)}
a{color:inherit;text-decoration:none}
button{font-family:inherit;cursor:pointer;border:none;outline:none}
input,textarea,select{font-family:inherit;outline:none}
img{max-width:100%;display:block}

/* ===== ANIMATIONS ===== */
@keyframes float{0%,100%{transform:translateY(0)}50%{transform:translateY(-15px)}}
@keyframes pulse-ring{0%{box-shadow:0 0 0 0 rgba(99,102,241,0.5)}70%{box-shadow:0 0 0 20px rgba(99,102,241,0)}100%{box-shadow:0 0 0 0 rgba(99,102,241,0)}}
@keyframes slideUp{from{opacity:0;transform:translateY(40px)}to{opacity:1;transform:translateY(0)}}
@keyframes slideRight{from{opacity:0;transform:translateX(-40px)}to{opacity:1;transform:translateX(0)}}
@keyframes fadeIn{from{opacity:0}to{opacity:1}}
@keyframes scaleIn{from{opacity:0;transform:scale(0.95)}to{opacity:1;transform:scale(1)}}
@keyframes gradientMove{0%,100%{background-position:0% 50%}50%{background-position:100% 50%}}
@keyframes shimmer{0%{background-position:-1000px 0}100%{background-position:1000px 0}}
.animate-up{animation:slideUp .6s ease-out forwards}
.animate-fade{animation:fadeIn .6s ease-out forwards}

/* ===== NAVBAR ===== */
.navbar{position:fixed;top:0;left:0;right:0;z-index:1000;background:rgba(2,6,23,0.8);backdrop-filter:blur(20px);-webkit-backdrop-filter:blur(20px);border-bottom:1px solid var(--border);transition:all .3s}
.navbar.scrolled{background:rgba(2,6,23,0.95);box-shadow:0 4px 30px rgba(0,0,0,0.3)}
.nav-container{max-width:1400px;margin:0 auto;padding:1rem 2rem;display:flex;justify-content:space-between;align-items:center}
.logo{display:flex;align-items:center;gap:.6rem;font-size:1.5rem;font-weight:800;cursor:pointer}
.logo-icon{width:40px;height:40px;background:var(--gradient);border-radius:10px;display:flex;align-items:center;justify-content:center;color:white;font-size:1.2rem;box-shadow:var(--shadow-glow)}
.logo-text{background:var(--gradient);-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text;font-family:'Plus Jakarta Sans',sans-serif}
.nav-links{display:flex;gap:.5rem;list-style:none;align-items:center}
.nav-links a{padding:.6rem 1.1rem;color:var(--text-muted);font-weight:500;font-size:.95rem;border-radius:8px;transition:all .25s;position:relative;cursor:pointer}
.nav-links a:hover{color:var(--text);background:rgba(99,102,241,0.08)}
.nav-links a.active{color:var(--text);background:rgba(99,102,241,0.15)}
.nav-actions{display:flex;gap:.6rem;align-items:center}
.btn{display:inline-flex;align-items:center;justify-content:center;gap:.5rem;padding:.7rem 1.4rem;border-radius:10px;font-weight:600;font-size:.92rem;cursor:pointer;transition:all .25s;white-space:nowrap}
.btn-primary{background:var(--gradient);color:white;box-shadow:0 4px 20px rgba(99,102,241,0.35)}
.btn-primary:hover{transform:translateY(-2px);box-shadow:0 8px 30px rgba(99,102,241,0.5)}
.btn-secondary{background:transparent;color:var(--text);border:1px solid var(--border)}
.btn-secondary:hover{background:var(--card-2);border-color:var(--primary)}
.btn-ghost{background:transparent;color:var(--text-muted)}
.btn-ghost:hover{color:var(--text);background:var(--card)}
.btn-danger{background:var(--danger);color:white}
.btn-danger:hover{background:#dc2626}
.btn-success{background:var(--success);color:white}
.btn-success:hover{background:#16a34a}
.btn-sm{padding:.45rem 1rem;font-size:.85rem;border-radius:8px}
.btn-block{width:100%}
.menu-toggle{display:none;background:transparent;color:var(--text);font-size:1.4rem;padding:.4rem}

/* ===== PAGE WRAPPER ===== */
.page{display:none;min-height:100vh;padding-top:80px;animation:fadeIn .4s ease-out}
.page.active{display:block}
.container{max-width:1400px;margin:0 auto;padding:0 2rem}
.section{padding:5rem 0}
.section-tag{display:inline-block;padding:.4rem 1rem;background:rgba(99,102,241,0.12);color:var(--primary-light);font-size:.85rem;font-weight:600;border-radius:99px;margin-bottom:1rem;border:1px solid rgba(99,102,241,0.25)}
.section-title{font-size:clamp(2rem,4vw,3.5rem);font-weight:800;font-family:'Plus Jakarta Sans',sans-serif;line-height:1.1;margin-bottom:1rem;letter-spacing:-.02em}
.section-title .grad{background:var(--gradient);-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text}
.section-desc{color:var(--text-muted);font-size:1.1rem;max-width:700px;margin-bottom:3rem}
.section-header{margin-bottom:3rem;text-align:center}
.section-header.left{text-align:left}
.section-header .section-desc{margin:0 auto}
.section-header.left .section-desc{margin:0}

/* ===== HERO ===== */
.hero{position:relative;min-height:90vh;display:flex;align-items:center;overflow:hidden;padding:6rem 0 4rem}
.hero-bg{position:absolute;inset:0;background:radial-gradient(ellipse at top,rgba(99,102,241,0.15),transparent 60%),radial-gradient(ellipse at bottom right,rgba(236,72,153,0.1),transparent 60%);z-index:-1}
.hero-bg::before{content:'';position:absolute;inset:0;background-image:linear-gradient(rgba(99,102,241,0.05) 1px,transparent 1px),linear-gradient(90deg,rgba(99,102,241,0.05) 1px,transparent 1px);background-size:60px 60px;mask-image:radial-gradient(ellipse at center,black,transparent 70%)}
.hero-grid{display:grid;grid-template-columns:1.2fr 1fr;gap:4rem;align-items:center;position:relative;z-index:1}
.hero-badge{display:inline-flex;align-items:center;gap:.5rem;padding:.5rem 1rem;background:rgba(99,102,241,0.1);border:1px solid rgba(99,102,241,0.3);border-radius:99px;color:var(--primary-light);font-size:.88rem;font-weight:500;margin-bottom:1.5rem}
.hero-badge .pulse{width:8px;height:8px;background:var(--primary);border-radius:50%;animation:pulse-ring 2s infinite}
.hero h1{font-size:clamp(2.5rem,5.5vw,5rem);font-weight:900;font-family:'Plus Jakarta Sans',sans-serif;line-height:1.05;letter-spacing:-.03em;margin-bottom:1.5rem}
.hero h1 .grad{background:var(--gradient);background-size:200% 200%;-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text;animation:gradientMove 5s ease infinite;display:inline-block}
.hero p.subtitle{font-size:1.25rem;color:var(--text-muted);margin-bottom:2rem;max-width:560px;line-height:1.7}
.hero-cta{display:flex;gap:1rem;flex-wrap:wrap;margin-bottom:3rem}
.hero-stats{display:grid;grid-template-columns:repeat(4,1fr);gap:2rem;padding-top:2rem;border-top:1px solid var(--border-2)}
.hero-stat .num{font-size:2rem;font-weight:800;background:var(--gradient);-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text;font-family:'Plus Jakarta Sans',sans-serif}
.hero-stat .lbl{font-size:.85rem;color:var(--text-dim);text-transform:uppercase;letter-spacing:.05em;font-weight:500}
.hero-visual{position:relative;height:550px}
.hero-card-stack{position:relative;width:100%;height:100%}
.hero-card{position:absolute;background:linear-gradient(135deg,rgba(30,41,59,0.9),rgba(15,23,42,0.9));backdrop-filter:blur(20px);border:1px solid var(--border);border-radius:20px;padding:1.5rem;box-shadow:0 20px 50px rgba(0,0,0,0.4)}
.hero-card-1{top:0;right:0;width:300px;animation:float 6s ease-in-out infinite}
.hero-card-2{top:140px;left:0;width:280px;animation:float 6s ease-in-out infinite 1.5s}
.hero-card-3{bottom:40px;right:30px;width:320px;animation:float 6s ease-in-out infinite 3s}
.hero-card .ico{width:44px;height:44px;border-radius:10px;display:flex;align-items:center;justify-content:center;color:white;font-size:1.1rem;margin-bottom:1rem}
.hero-card h4{font-size:1rem;font-weight:700;margin-bottom:.4rem}
.hero-card p{font-size:.85rem;color:var(--text-muted);line-height:1.5}
.hero-card .meta{display:flex;justify-content:space-between;margin-top:1rem;font-size:.78rem;color:var(--text-dim)}

/* ===== FEATURES STRIP ===== */
.features-strip{padding:4rem 0;border-top:1px solid var(--border-2);border-bottom:1px solid var(--border-2);background:rgba(15,23,42,0.3)}
.features-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:2rem}
.feature{text-align:center;padding:1.5rem 1rem}
.feature .ico{width:60px;height:60px;border-radius:14px;background:var(--gradient);display:inline-flex;align-items:center;justify-content:center;color:white;font-size:1.4rem;margin-bottom:1rem;box-shadow:var(--shadow-glow)}
.feature h3{font-size:1.1rem;font-weight:700;margin-bottom:.5rem}
.feature p{color:var(--text-muted);font-size:.93rem}

/* ===== CARDS GRID ===== */
.cards-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(320px,1fr));gap:1.75rem}
.cards-grid-3{display:grid;grid-template-columns:repeat(3,1fr);gap:1.75rem}
.card{background:linear-gradient(180deg,var(--card),var(--bg-2));border:1px solid var(--border-2);border-radius:18px;overflow:hidden;transition:all .3s;cursor:pointer;display:flex;flex-direction:column}
.card:hover{transform:translateY(-6px);border-color:rgba(99,102,241,0.4);box-shadow:0 20px 50px rgba(0,0,0,0.4)}
.card-img{position:relative;aspect-ratio:16/10;background:var(--gradient);display:flex;align-items:center;justify-content:center;color:white;font-size:3.5rem;overflow:hidden}
.card-img img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover}
.card-img .badge{position:absolute;top:12px;right:12px;padding:.3rem .7rem;background:var(--gradient-2);color:white;font-size:.75rem;font-weight:700;border-radius:99px;box-shadow:0 4px 15px rgba(245,158,11,0.4)}
.card-img .play-btn{position:absolute;inset:0;background:rgba(0,0,0,0.4);display:flex;align-items:center;justify-content:center;opacity:0;transition:opacity .3s}
.card:hover .play-btn{opacity:1}
.play-btn .play-circle{width:64px;height:64px;background:white;border-radius:50%;display:flex;align-items:center;justify-content:center;color:var(--primary);font-size:1.4rem;padding-left:5px;box-shadow:0 8px 25px rgba(0,0,0,0.5)}
.card-body{padding:1.5rem;flex:1;display:flex;flex-direction:column}
.card-tag{display:inline-block;padding:.25rem .7rem;background:rgba(99,102,241,0.12);color:var(--primary-light);font-size:.75rem;font-weight:600;border-radius:99px;margin-bottom:.8rem;align-self:flex-start;text-transform:uppercase;letter-spacing:.05em}
.card-title{font-size:1.15rem;font-weight:700;margin-bottom:.5rem;line-height:1.35;font-family:'Plus Jakarta Sans',sans-serif}
.card-desc{color:var(--text-muted);font-size:.9rem;line-height:1.55;margin-bottom:1rem;flex:1}
.card-meta{display:flex;justify-content:space-between;align-items:center;font-size:.85rem;color:var(--text-dim);padding-top:1rem;border-top:1px solid var(--border-2)}
.card-meta .price{font-size:1.25rem;font-weight:800;background:var(--gradient);-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text}
.card-meta .rating{color:var(--secondary)}
.card-meta i{margin-right:.3rem}

/* ===== FILTER BAR ===== */
.filter-bar{display:flex;gap:.6rem;flex-wrap:wrap;margin-bottom:2rem;padding:.6rem;background:var(--card);border:1px solid var(--border-2);border-radius:14px}
.filter-btn{padding:.5rem 1.1rem;background:transparent;color:var(--text-muted);border-radius:8px;font-weight:500;font-size:.9rem;transition:all .2s}
.filter-btn:hover{color:var(--text);background:var(--card-2)}
.filter-btn.active{background:var(--gradient);color:white}
.search-bar{position:relative;margin-bottom:1.5rem}
.search-bar input{width:100%;padding:.9rem 1.1rem .9rem 3rem;background:var(--card);border:1px solid var(--border-2);border-radius:12px;color:var(--text);font-size:.95rem;transition:all .2s}
.search-bar input:focus{border-color:var(--primary);box-shadow:0 0 0 3px rgba(99,102,241,0.15)}
.search-bar i{position:absolute;left:1.1rem;top:50%;transform:translateY(-50%);color:var(--text-dim)}

/* ===== LEARNING PATHS (Duolingo style) ===== */
.path-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(280px,1fr));gap:1.5rem}
.path-card{position:relative;background:linear-gradient(135deg,var(--card),var(--bg-2));border:1px solid var(--border-2);border-radius:20px;padding:2rem 1.5rem;text-align:center;transition:all .3s;overflow:hidden;cursor:pointer}
.path-card::before{content:'';position:absolute;top:0;left:0;right:0;height:4px;background:var(--gradient)}
.path-card:hover{transform:translateY(-6px);border-color:rgba(99,102,241,0.4)}
.path-mascot{width:90px;height:90px;background:var(--gradient);border-radius:50%;display:flex;align-items:center;justify-content:center;color:white;font-size:2.5rem;margin:0 auto 1.2rem;box-shadow:var(--shadow-glow)}
.path-card h3{font-size:1.3rem;font-weight:800;margin-bottom:.5rem;font-family:'Plus Jakarta Sans',sans-serif}
.path-card p{color:var(--text-muted);font-size:.92rem;margin-bottom:1.2rem;min-height:48px}
.path-progress{height:8px;background:var(--card-2);border-radius:99px;overflow:hidden;margin-bottom:1rem}
.path-progress-bar{height:100%;background:var(--gradient);border-radius:99px;transition:width .6s}
.path-meta{display:flex;justify-content:space-between;font-size:.82rem;color:var(--text-dim);margin-bottom:1.2rem}

/* ===== LEARNING PATH PLAYER (Duolingo) ===== */
.path-player{max-width:780px;margin:0 auto;padding:2rem 1rem}
.path-header{text-align:center;margin-bottom:3rem}
.path-header .ico{width:100px;height:100px;background:var(--gradient);border-radius:50%;display:flex;align-items:center;justify-content:center;color:white;font-size:3rem;margin:0 auto 1.5rem;box-shadow:var(--shadow-glow)}
.path-header h1{font-size:2.5rem;font-weight:800;margin-bottom:.5rem;font-family:'Plus Jakarta Sans',sans-serif}
.path-header p{color:var(--text-muted);font-size:1.1rem}
.path-units{display:flex;flex-direction:column;gap:1rem;align-items:center;margin:3rem 0}
.path-node{position:relative;width:80px;height:80px;border-radius:50%;display:flex;align-items:center;justify-content:center;font-size:1.5rem;font-weight:700;cursor:pointer;transition:all .3s;background:var(--card-2);color:var(--text-muted);border:4px solid var(--card-hover)}
.path-node.completed{background:var(--gradient-3);color:white;border-color:#10b981;box-shadow:0 8px 25px rgba(16,185,129,0.4)}
.path-node.current{background:var(--gradient);color:white;border-color:var(--primary);animation:pulse-ring 2s infinite;box-shadow:var(--shadow-glow)}
.path-node:hover{transform:scale(1.1)}
.path-node-label{position:absolute;left:100px;top:50%;transform:translateY(-50%);white-space:nowrap;font-size:.95rem;color:var(--text);font-weight:500;background:var(--card);padding:.4rem .8rem;border-radius:8px;border:1px solid var(--border-2)}
.path-connector{width:4px;height:30px;background:var(--card-hover);border-radius:99px}
.path-connector.completed{background:var(--accent)}

/* ===== LESSON ===== */
.lesson{max-width:720px;margin:2rem auto;background:var(--card);border:1px solid var(--border-2);border-radius:20px;padding:2.5rem;animation:scaleIn .4s ease-out}
.lesson-progress{height:10px;background:var(--card-2);border-radius:99px;overflow:hidden;margin-bottom:2rem}
.lesson-progress-bar{height:100%;background:var(--gradient);border-radius:99px;transition:width .5s}
.lesson h2{font-size:1.8rem;font-weight:800;margin-bottom:1rem;font-family:'Plus Jakarta Sans',sans-serif}
.lesson-question{background:var(--bg-2);padding:1.5rem;border-radius:12px;margin-bottom:1.5rem;font-size:1.15rem}
.lesson-options{display:grid;gap:.8rem;margin-bottom:2rem}
.lesson-option{padding:1rem 1.5rem;background:var(--card-2);border:2px solid var(--border-2);border-radius:12px;text-align:left;color:var(--text);font-size:1rem;font-weight:500;transition:all .2s}
.lesson-option:hover{border-color:var(--primary);background:var(--card-hover);transform:translateX(4px)}
.lesson-option.selected{border-color:var(--primary);background:rgba(99,102,241,0.15)}
.lesson-option.correct{border-color:var(--success);background:rgba(34,197,94,0.15)}
.lesson-option.wrong{border-color:var(--danger);background:rgba(239,68,68,0.15)}
.lesson-actions{display:flex;justify-content:space-between;gap:1rem}
.lesson-feedback{padding:1rem 1.5rem;border-radius:12px;margin-bottom:1.5rem;font-weight:600}
.lesson-feedback.success{background:rgba(34,197,94,0.15);color:#86efac;border:1px solid rgba(34,197,94,0.3)}
.lesson-feedback.error{background:rgba(239,68,68,0.15);color:#fca5a5;border:1px solid rgba(239,68,68,0.3)}

/* ===== BLOG ===== */
.blog-card{display:grid;grid-template-columns:300px 1fr;gap:0;background:var(--card);border:1px solid var(--border-2);border-radius:18px;overflow:hidden;transition:all .3s;cursor:pointer;margin-bottom:1.5rem}
.blog-card:hover{transform:translateY(-4px);border-color:rgba(99,102,241,0.4)}
.blog-card-img{aspect-ratio:1;background:var(--gradient);display:flex;align-items:center;justify-content:center;color:white;font-size:3rem;position:relative}
.blog-card-img img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover}
.blog-card-body{padding:1.75rem}
.blog-card-meta{display:flex;gap:1rem;font-size:.82rem;color:var(--text-dim);margin-bottom:.7rem}
.blog-card-title{font-size:1.4rem;font-weight:800;margin-bottom:.6rem;font-family:'Plus Jakarta Sans',sans-serif}
.blog-card-desc{color:var(--text-muted);font-size:.95rem;line-height:1.6;margin-bottom:1rem}

/* ===== APPLICATION FORM ===== */
.form-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:1.2rem}
.form-group{margin-bottom:1.2rem}
.form-group.full{grid-column:1/-1}
.form-label{display:block;margin-bottom:.5rem;font-size:.9rem;font-weight:600;color:var(--text)}
.form-input,.form-textarea,.form-select{width:100%;padding:.85rem 1rem;background:var(--card);border:1px solid var(--border-2);border-radius:10px;color:var(--text);font-size:.95rem;transition:all .2s}
.form-input:focus,.form-textarea:focus,.form-select:focus{border-color:var(--primary);box-shadow:0 0 0 3px rgba(99,102,241,0.15)}
.form-textarea{resize:vertical;min-height:110px;font-family:inherit}

/* ===== AUTH FORMS ===== */
.auth-wrap{max-width:440px;margin:3rem auto;background:var(--card);border:1px solid var(--border-2);border-radius:20px;padding:2.5rem;box-shadow:0 20px 60px rgba(0,0,0,0.3)}
.auth-wrap h1{font-size:1.8rem;font-weight:800;margin-bottom:.5rem;text-align:center;font-family:'Plus Jakarta Sans',sans-serif}
.auth-wrap p{text-align:center;color:var(--text-muted);margin-bottom:2rem}

/* ===== ADMIN ===== */
.admin-shell{display:grid;grid-template-columns:260px 1fr;min-height:calc(100vh - 80px)}
.admin-sidebar{background:var(--bg-2);border-right:1px solid var(--border-2);padding:1.5rem 1rem;position:sticky;top:80px;height:calc(100vh - 80px);overflow-y:auto}
.admin-sidebar h4{font-size:.78rem;color:var(--text-dim);text-transform:uppercase;letter-spacing:.08em;margin:1.5rem .8rem .5rem;font-weight:600}
.admin-nav-link{display:flex;align-items:center;gap:.7rem;padding:.7rem .9rem;color:var(--text-muted);border-radius:9px;font-size:.92rem;font-weight:500;cursor:pointer;transition:all .2s;margin-bottom:.2rem}
.admin-nav-link:hover{background:var(--card);color:var(--text)}
.admin-nav-link.active{background:var(--gradient);color:white;box-shadow:0 4px 15px rgba(99,102,241,0.3)}
.admin-nav-link i{font-size:1rem;width:18px;text-align:center}
.admin-content{padding:2rem;overflow:hidden}
.admin-header{display:flex;justify-content:space-between;align-items:center;margin-bottom:2rem;flex-wrap:wrap;gap:1rem}
.admin-header h1{font-size:2rem;font-weight:800;font-family:'Plus Jakarta Sans',sans-serif}
.admin-stats{display:grid;grid-template-columns:repeat(auto-fit,minmax(200px,1fr));gap:1.2rem;margin-bottom:2.5rem}
.admin-stat{background:var(--card);border:1px solid var(--border-2);border-radius:14px;padding:1.5rem;position:relative;overflow:hidden}
.admin-stat::before{content:'';position:absolute;top:0;left:0;right:0;height:3px;background:var(--gradient)}
.admin-stat .ico{width:44px;height:44px;background:var(--gradient);border-radius:10px;display:flex;align-items:center;justify-content:center;color:white;font-size:1.1rem;margin-bottom:.8rem}
.admin-stat .num{font-size:2.2rem;font-weight:800;font-family:'Plus Jakarta Sans',sans-serif}
.admin-stat .lbl{color:var(--text-muted);font-size:.88rem;font-weight:500}
.admin-table{width:100%;background:var(--card);border:1px solid var(--border-2);border-radius:14px;overflow:hidden;border-collapse:collapse}
.admin-table th{background:var(--bg-2);text-align:left;padding:1rem;font-weight:600;font-size:.85rem;color:var(--text-muted);text-transform:uppercase;letter-spacing:.05em;border-bottom:1px solid var(--border-2)}
.admin-table td{padding:1rem;font-size:.92rem;border-bottom:1px solid var(--border-2)}
.admin-table tr:last-child td{border-bottom:none}
.admin-table tr:hover{background:rgba(99,102,241,0.04)}
.status-badge{display:inline-block;padding:.25rem .7rem;border-radius:99px;font-size:.75rem;font-weight:700;text-transform:uppercase;letter-spacing:.04em}
.status-pending{background:rgba(245,158,11,0.15);color:#fbbf24}
.status-approved{background:rgba(34,197,94,0.15);color:#86efac}
.status-rejected{background:rgba(239,68,68,0.15);color:#fca5a5}
.status-selected{background:rgba(99,102,241,0.15);color:var(--primary-light)}
.action-btns{display:flex;gap:.4rem;flex-wrap:wrap}
.icon-btn{width:34px;height:34px;display:inline-flex;align-items:center;justify-content:center;border-radius:8px;background:var(--card-2);color:var(--text-muted);transition:all .2s;cursor:pointer}
.icon-btn:hover{background:var(--primary);color:white}
.icon-btn.danger:hover{background:var(--danger)}
.icon-btn.success:hover{background:var(--success)}

/* ===== MODAL ===== */
.modal-overlay{position:fixed;inset:0;background:rgba(0,0,0,0.85);backdrop-filter:blur(8px);z-index:2000;display:none;align-items:center;justify-content:center;padding:2rem;animation:fadeIn .25s}
.modal-overlay.active{display:flex}
.modal{background:var(--card);border:1px solid var(--border-2);border-radius:18px;width:100%;max-width:720px;max-height:88vh;overflow-y:auto;animation:scaleIn .3s ease-out}
.modal-lg{max-width:1000px}
.modal-header{display:flex;justify-content:space-between;align-items:center;padding:1.5rem;border-bottom:1px solid var(--border-2);position:sticky;top:0;background:var(--card);z-index:10}
.modal-header h2{font-size:1.3rem;font-weight:700;font-family:'Plus Jakarta Sans',sans-serif}
.modal-close{background:transparent;color:var(--text-muted);font-size:1.4rem;width:36px;height:36px;border-radius:8px;display:flex;align-items:center;justify-content:center}
.modal-close:hover{background:var(--card-2);color:var(--text)}
.modal-body{padding:1.5rem}
.modal-footer{padding:1.25rem 1.5rem;border-top:1px solid var(--border-2);display:flex;justify-content:flex-end;gap:.7rem}

/* VIDEO MODAL */
.video-frame{aspect-ratio:16/9;background:#000;border-radius:12px;overflow:hidden}
.video-frame iframe,.video-frame video{width:100%;height:100%;border:0}

/* ===== TOAST ===== */
#toast-container{position:fixed;top:90px;right:20px;z-index:3000;display:flex;flex-direction:column;gap:.6rem}
.toast{padding:.9rem 1.2rem;background:var(--card);border:1px solid var(--border-2);border-radius:10px;box-shadow:0 8px 25px rgba(0,0,0,0.3);display:flex;align-items:center;gap:.7rem;min-width:280px;max-width:380px;animation:slideRight .3s ease-out;border-left:4px solid var(--primary)}
.toast.success{border-left-color:var(--success)}
.toast.error{border-left-color:var(--danger)}
.toast.warning{border-left-color:var(--secondary)}
.toast i{font-size:1.1rem}
.toast.success i{color:var(--success)}
.toast.error i{color:var(--danger)}
.toast.warning i{color:var(--secondary)}
.toast.info i{color:var(--primary)}

/* ===== FOOTER ===== */
footer{background:var(--bg-2);border-top:1px solid var(--border-2);padding:4rem 0 2rem;margin-top:4rem}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1fr;gap:3rem;margin-bottom:3rem}
.footer-brand p{color:var(--text-muted);margin-top:1rem;line-height:1.7;max-width:340px}
.footer-social{display:flex;gap:.6rem;margin-top:1.5rem}
.footer-social a{width:38px;height:38px;background:var(--card);border-radius:10px;display:flex;align-items:center;justify-content:center;color:var(--text-muted);transition:all .2s;border:1px solid var(--border-2)}
.footer-social a:hover{background:var(--gradient);color:white;transform:translateY(-2px);border-color:transparent}
.footer-col h4{font-size:1rem;font-weight:700;margin-bottom:1rem;color:var(--text)}
.footer-col ul{list-style:none;display:flex;flex-direction:column;gap:.6rem}
.footer-col a{color:var(--text-muted);font-size:.92rem;cursor:pointer;transition:color .2s}
.footer-col a:hover{color:var(--primary-light)}
.footer-bottom{padding-top:2rem;border-top:1px solid var(--border-2);text-align:center;color:var(--text-dim);font-size:.88rem}

/* ===== COURSE DETAIL ===== */
.course-detail{display:grid;grid-template-columns:1fr 360px;gap:2.5rem;align-items:flex-start}
.course-main h1{font-size:2.5rem;font-weight:800;margin-bottom:1rem;font-family:'Plus Jakarta Sans',sans-serif;line-height:1.15}
.course-info{display:flex;gap:1.5rem;flex-wrap:wrap;margin-bottom:2rem;color:var(--text-muted);font-size:.92rem}
.course-info span i{margin-right:.4rem;color:var(--primary-light)}
.lesson-list{background:var(--card);border:1px solid var(--border-2);border-radius:14px;overflow:hidden;margin-top:2rem}
.lesson-item{display:flex;align-items:center;gap:1rem;padding:1rem 1.25rem;border-bottom:1px solid var(--border-2);cursor:pointer;transition:background .2s}
.lesson-item:last-child{border-bottom:none}
.lesson-item:hover{background:var(--card-2)}
.lesson-item .num{width:34px;height:34px;background:var(--card-2);border-radius:8px;display:flex;align-items:center;justify-content:center;font-weight:700;color:var(--primary-light);font-size:.9rem}
.lesson-item .title{flex:1;font-weight:500}
.lesson-item .duration{color:var(--text-dim);font-size:.85rem}
.course-sidebar{background:var(--card);border:1px solid var(--border-2);border-radius:18px;padding:1.5rem;position:sticky;top:100px}
.course-sidebar .video-frame{margin-bottom:1.5rem}

/* ===== EMPTY STATE ===== */
.empty{padding:4rem 2rem;text-align:center;color:var(--text-muted)}
.empty i{font-size:3rem;color:var(--text-dim);margin-bottom:1rem;display:block}
.empty h3{color:var(--text);font-size:1.2rem;font-weight:700;margin-bottom:.5rem}

/* ===== RESPONSIVE ===== */
@media(max-width:1100px){
  .hero-grid{grid-template-columns:1fr;text-align:center}
  .hero-cta{justify-content:center}
  .hero-visual{display:none}
  .features-grid{grid-template-columns:repeat(2,1fr)}
  .course-detail{grid-template-columns:1fr}
  .footer-grid{grid-template-columns:repeat(2,1fr)}
  .cards-grid-3{grid-template-columns:repeat(2,1fr)}
}
@media(max-width:768px){
  .nav-links{display:none;position:absolute;top:100%;left:0;right:0;background:var(--card);flex-direction:column;padding:1rem;border-top:1px solid var(--border-2);max-height:calc(100vh - 80px);overflow-y:auto}
  .nav-links.active{display:flex}
  .nav-links a{width:100%}
  .menu-toggle{display:block}
  .nav-actions .btn-text{display:none}
  .hero-stats{grid-template-columns:repeat(2,1fr);gap:1rem}
  .hero h1{font-size:2.5rem}
  .features-grid{grid-template-columns:1fr}
  .form-grid{grid-template-columns:1fr}
  .blog-card{grid-template-columns:1fr}
  .blog-card-img{aspect-ratio:16/9}
  .admin-shell{grid-template-columns:1fr}
  .admin-sidebar{position:static;height:auto;border-right:none;border-bottom:1px solid var(--border-2)}
  .footer-grid{grid-template-columns:1fr;gap:2rem}
  .cards-grid-3{grid-template-columns:1fr}
  .container{padding:0 1rem}
  .section{padding:3rem 0}
  .nav-container{padding:1rem}
  .path-node-label{display:none}
}

/* ===== PHP-version additions (preserve original look) ===== */
.page{display:block;min-height:auto;padding-top:80px;animation:fadeIn .4s ease-out}
.toast{cursor:pointer}
.pagination{display:flex;gap:.5rem;justify-content:center;margin:2rem 0;flex-wrap:wrap}
.pagination .page-link{padding:.5rem 1rem;background:var(--card);border:1px solid var(--border-2);border-radius:8px;color:var(--text-muted);transition:all .2s;text-decoration:none}
.pagination .page-link:hover{background:var(--card-2);color:var(--text)}
.pagination .page-link.active{background:var(--gradient);color:white;border-color:transparent}
.alert{padding:1rem 1.25rem;border-radius:10px;margin-bottom:1rem;display:flex;align-items:center;gap:.7rem}
.alert-error{background:rgba(239,68,68,0.12);color:#fca5a5;border:1px solid rgba(239,68,68,0.3)}
.alert-success{background:rgba(34,197,94,0.12);color:#86efac;border:1px solid rgba(34,197,94,0.3)}
.field-error{color:#fca5a5;font-size:.85rem;margin-top:.3rem}
.lesson-row{display:grid;grid-template-columns:auto 2fr 1fr 1fr 2fr auto;gap:.5rem;align-items:center;padding:.6rem;background:var(--bg-2);border-radius:8px;margin-bottom:.5rem}
.lesson-row .drag{color:var(--text-dim);cursor:grab}
.unit-row{background:var(--bg-2);border-radius:10px;padding:1rem;margin-bottom:.8rem;border:1px solid var(--border-2)}
.unit-row .form-grid{margin-bottom:0}
.btn-icon-only{padding:.5rem .7rem}
.empty-row{padding:2rem;text-align:center;color:var(--text-dim)}
.table{width:100%;border-collapse:collapse;background:var(--card);border-radius:12px;overflow:hidden}
.table th,.table td{padding:.9rem 1rem;text-align:left;border-bottom:1px solid var(--border-2);font-size:.92rem}
.table th{background:var(--bg-2);color:var(--text-muted);font-weight:600;text-transform:uppercase;font-size:.75rem;letter-spacing:.5px}
.table tr:last-child td{border-bottom:none}
.table tr:hover td{background:rgba(99,102,241,0.04)}
.btn-danger{background:rgba(239,68,68,0.15);color:#fca5a5;border:1px solid rgba(239,68,68,0.3)}
.btn-danger:hover{background:rgba(239,68,68,0.25)}
.btn-success{background:rgba(34,197,94,0.15);color:#86efac;border:1px solid rgba(34,197,94,0.3)}
.btn-success:hover{background:rgba(34,197,94,0.25)}
.badge{display:inline-block;padding:.25rem .65rem;border-radius:99px;font-size:.72rem;font-weight:600;text-transform:uppercase;letter-spacing:.4px}
.badge-pending{background:rgba(245,158,11,0.18);color:#fcd34d}
.badge-approved{background:rgba(34,197,94,0.18);color:#86efac}
.badge-rejected{background:rgba(239,68,68,0.18);color:#fca5a5}
.badge-published{background:rgba(99,102,241,0.18);color:#a5b4fc}
.badge-draft{background:rgba(100,116,139,0.18);color:#94a3b8}
.muted{color:var(--text-dim);font-size:.88rem}
.actions-cell{display:flex;gap:.4rem;flex-wrap:wrap}
.actions-cell .btn{padding:.4rem .7rem;font-size:.82rem}
.dashboard-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(220px,1fr));gap:1.25rem;margin-bottom:2rem}
.dash-card{background:var(--card);border:1px solid var(--border-2);border-radius:14px;padding:1.5rem;display:flex;align-items:center;gap:1rem}
.dash-card .ico{width:50px;height:50px;border-radius:12px;display:flex;align-items:center;justify-content:center;font-size:1.4rem;color:#fff}
.dash-card .num{font-size:1.8rem;font-weight:800;font-family:'Plus Jakarta Sans',sans-serif}
.dash-card .lbl{color:var(--text-dim);font-size:.85rem}
.tab-bar{display:flex;gap:.5rem;margin-bottom:1.5rem;border-bottom:1px solid var(--border-2);overflow-x:auto}
.tab-bar a{padding:.7rem 1.2rem;color:var(--text-muted);text-decoration:none;border-bottom:2px solid transparent;white-space:nowrap}
.tab-bar a.active{color:var(--text);border-bottom-color:var(--primary)}