/* KitapKurs LMS - Ana Stil */
@import url('https://fonts.googleapis.com/css2?family=Playfair+Display:wght@700;900&family=DM+Sans:wght@300;400;500;600&display=swap');

:root {
  --gold:#f59e0b; --red:#ef4444; --green:#22c55e; --blue:#6366f1;
  --dark:#0a0a14; --dark2:#12121f; --dark3:#1a1a2e;
  --card:#1e1e30; --border:#2a2a40;
  --text:#e2e2f0; --muted:#888aaa;
  --gradient:linear-gradient(135deg,#f59e0b,#ef4444);
  --r:12px;
}

*{margin:0;padding:0;box-sizing:border-box;}
html{scroll-behavior:smooth;}
body{font-family:'DM Sans',sans-serif;background:var(--dark);color:var(--text);line-height:1.6;}
a{color:inherit;text-decoration:none;}
img{max-width:100%;}

/* NAVBAR */
.navbar{position:fixed;top:0;left:0;right:0;z-index:1000;background:rgba(10,10,20,.9);backdrop-filter:blur(20px);border-bottom:1px solid var(--border);height:68px;display:flex;align-items:center;padding:0 5%;}
.navbar .logo{font-family:'Playfair Display',serif;font-size:1.5rem;font-weight:900;background:var(--gradient);-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text;font-style:italic;margin-right:auto;}
.nav-links{display:flex;align-items:center;gap:28px;list-style:none;}
.nav-links a{font-size:.9rem;color:var(--muted);transition:color .2s;}
.nav-links a:hover{color:var(--text);}
.btn-nav{padding:9px 20px;background:var(--gradient);border-radius:100px;font-size:.88rem;font-weight:600;color:#fff!important;-webkit-text-fill-color:#fff!important;}
.btn-nav:hover{opacity:.9;}
.nav-avatar{width:36px;height:36px;border-radius:50%;background:var(--gradient);display:flex;align-items:center;justify-content:center;font-size:.85rem;font-weight:700;color:#fff;cursor:pointer;}

/* BUTONLAR */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;padding:11px 24px;border-radius:var(--r);font-size:.92rem;font-weight:600;cursor:pointer;border:none;transition:all .25s;text-align:center;}
.btn-primary{background:var(--gradient);color:#fff;box-shadow:0 4px 18px rgba(245,158,11,.3);}
.btn-primary:hover{transform:translateY(-2px);box-shadow:0 8px 28px rgba(245,158,11,.45);}
.btn-secondary{background:var(--card);border:1px solid var(--border);color:var(--text);}
.btn-secondary:hover{border-color:var(--gold);color:var(--gold);}
.btn-success{background:rgba(34,197,94,.15);border:1px solid rgba(34,197,94,.3);color:var(--green);}
.btn-success:hover{background:var(--green);color:#fff;}
.btn-danger{background:rgba(239,68,68,.15);border:1px solid rgba(239,68,68,.3);color:var(--red);}
.btn-sm{padding:7px 16px;font-size:.82rem;}
.btn-lg{padding:14px 36px;font-size:1rem;}
.btn-block{width:100%;}

/* FORMLAR */
.form-group{margin-bottom:20px;}
.form-group label{display:block;font-size:.82rem;color:var(--muted);margin-bottom:7px;font-weight:500;}
.form-group input,.form-group select,.form-group textarea{width:100%;padding:12px 16px;background:var(--dark);border:1px solid var(--border);border-radius:var(--r);color:var(--text);font-family:'DM Sans',sans-serif;font-size:.92rem;transition:border-color .2s;}
.form-group input:focus,.form-group select:focus,.form-group textarea:focus{outline:none;border-color:var(--gold);background:rgba(245,158,11,.03);}
.form-group textarea{min-height:110px;resize:vertical;}
.form-group select option{background:var(--dark);}

/* KARTLAR */
.card{background:var(--card);border:1px solid var(--border);border-radius:16px;overflow:hidden;}
.card-body{padding:24px;}
.card-header{padding:18px 24px;border-bottom:1px solid var(--border);display:flex;align-items:center;justify-content:space-between;}
.card-header h3{font-size:1rem;font-weight:600;}

/* BADGE */
.badge{display:inline-block;padding:3px 10px;border-radius:100px;font-size:.72rem;font-weight:700;}
.badge-book{background:rgba(99,102,241,.2);color:#818cf8;}
.badge-course{background:rgba(245,158,11,.2);color:var(--gold);}
.badge-bundle{background:rgba(34,197,94,.2);color:var(--green);}
.badge-active{background:rgba(34,197,94,.2);color:var(--green);}
.badge-pending{background:rgba(245,158,11,.2);color:var(--gold);}
.badge-completed{background:rgba(34,197,94,.2);color:var(--green);}

/* ALERT */
.alert{padding:12px 18px;border-radius:var(--r);font-size:.9rem;margin-bottom:18px;}
.alert-success{background:rgba(34,197,94,.1);border:1px solid rgba(34,197,94,.3);color:var(--green);}
.alert-error{background:rgba(239,68,68,.1);border:1px solid rgba(239,68,68,.3);color:var(--red);}
.alert-info{background:rgba(99,102,241,.1);border:1px solid rgba(99,102,241,.3);color:#818cf8;}
.alert-warning{background:rgba(245,158,11,.1);border:1px solid rgba(245,158,11,.3);color:var(--gold);}

/* PROGRESS BAR */
.progress-bar{height:6px;background:var(--border);border-radius:3px;overflow:hidden;}
.progress-bar-fill{height:100%;background:var(--gradient);border-radius:3px;transition:width .5s ease;}

/* ÜRÜN KARTI */
.product-card{background:var(--card);border:1px solid var(--border);border-radius:16px;overflow:hidden;transition:all .3s;}
.product-card:hover{transform:translateY(-5px);border-color:rgba(245,158,11,.3);box-shadow:0 18px 48px rgba(0,0,0,.4);}
.product-card-img{height:190px;background:var(--dark3);display:flex;align-items:center;justify-content:center;font-size:3.5rem;position:relative;overflow:hidden;}
.product-card-img img{width:100%;height:100%;object-fit:cover;}
.product-card-body{padding:22px;}
.product-card-body h3{font-size:1.08rem;margin-bottom:8px;}
.product-card-body .desc{font-size:.86rem;color:var(--muted);margin-bottom:18px;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;}
.price-row{display:flex;align-items:center;gap:10px;margin-bottom:16px;}
.price-current{font-size:1.3rem;font-weight:700;background:var(--gradient);-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text;}
.price-old{font-size:.9rem;color:var(--muted);text-decoration:line-through;}
.price-discount{font-size:.72rem;font-weight:700;background:rgba(239,68,68,.2);color:#ef4444;padding:3px 8px;border-radius:100px;}

/* SAYFA DÜZENİ */
.page-wrapper{min-height:100vh;padding-top:68px;}
.container{max-width:1200px;margin:0 auto;padding:0 5%;}
.section{padding:80px 0;}
.section-sm{padding:40px 0;}

/* TAB SİSTEMİ */
.tabs{display:flex;gap:4px;background:var(--dark3);padding:4px;border-radius:var(--r);margin-bottom:28px;}
.tab-btn{flex:1;padding:9px;border:none;background:transparent;color:var(--muted);border-radius:9px;font-size:.88rem;font-weight:500;cursor:pointer;transition:all .2s;}
.tab-btn.active{background:var(--card);color:var(--text);box-shadow:0 2px 8px rgba(0,0,0,.3);}
.tab-content{display:none;}
.tab-content.active{display:block;}

/* DERS LİSTESİ */
.lesson-item{display:flex;align-items:center;gap:14px;padding:14px 18px;background:var(--card);border:1px solid var(--border);border-radius:var(--r);margin-bottom:8px;transition:all .2s;cursor:pointer;}
.lesson-item:hover{border-color:rgba(245,158,11,.3);}
.lesson-item.active{border-color:var(--gold);background:rgba(245,158,11,.05);}
.lesson-item.completed{border-color:rgba(34,197,94,.3);}
.lesson-num{width:34px;height:34px;border-radius:50%;background:var(--dark3);display:flex;align-items:center;justify-content:center;font-size:.85rem;font-weight:600;flex-shrink:0;}
.lesson-num.done{background:rgba(34,197,94,.2);color:var(--green);}
.lesson-num.locked{background:rgba(255,255,255,.05);color:var(--muted);}
.lesson-info{flex:1;}
.lesson-info h4{font-size:.92rem;font-weight:600;margin-bottom:2px;}
.lesson-info span{font-size:.78rem;color:var(--muted);}
.lesson-status{font-size:1rem;}

/* VİDEO OYNATICI */
.video-wrapper{position:relative;padding-bottom:56.25%;height:0;overflow:hidden;border-radius:var(--r);background:#000;}
.video-wrapper iframe,.video-wrapper video{position:absolute;top:0;left:0;width:100%;height:100%;border:none;}

/* TEST */
.quiz-question{background:var(--card);border:1px solid var(--border);border-radius:var(--r);padding:24px;margin-bottom:16px;}
.quiz-question h4{font-size:.98rem;margin-bottom:16px;}
.quiz-option{display:flex;align-items:center;gap:12px;padding:11px 16px;border:1px solid var(--border);border-radius:var(--r);margin-bottom:8px;cursor:pointer;transition:all .2s;}
.quiz-option:hover{border-color:var(--gold);background:rgba(245,158,11,.04);}
.quiz-option.selected{border-color:var(--gold);background:rgba(245,158,11,.08);}
.quiz-option.correct{border-color:var(--green);background:rgba(34,197,94,.08);}
.quiz-option.wrong{border-color:var(--red);background:rgba(239,68,68,.08);}
.quiz-option input{display:none;}
.option-letter{width:28px;height:28px;border-radius:50%;background:var(--dark3);display:flex;align-items:center;justify-content:center;font-size:.82rem;font-weight:700;flex-shrink:0;}

/* PUAN EKRANI */
.score-circle{width:120px;height:120px;border-radius:50%;background:var(--gradient);display:flex;align-items:center;justify-content:center;margin:0 auto 24px;font-size:1.8rem;font-weight:700;color:#fff;}

/* KİTAP OKUYUCU */
.book-reader{background:var(--dark3);border-radius:var(--r);overflow:hidden;}
.book-toolbar{display:flex;align-items:center;gap:12px;padding:12px 16px;background:var(--card);border-bottom:1px solid var(--border);}
.book-toolbar span{flex:1;text-align:center;font-size:.88rem;}
.book-frame{width:100%;height:75vh;border:none;}

/* GRİD */
.grid-2{display:grid;grid-template-columns:1fr 1fr;gap:24px;}
.grid-3{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;}
.grid-4{display:grid;grid-template-columns:repeat(4,1fr);gap:20px;}

/* FOOTER */
footer{background:var(--dark2);border-top:1px solid var(--border);padding:40px 5%;text-align:center;}
footer p{color:var(--muted);font-size:.88rem;}

/* RESPONSIVE */
@media(max-width:900px){
  .grid-3,.grid-4{grid-template-columns:1fr 1fr;}
  .grid-2{grid-template-columns:1fr;}
}
@media(max-width:600px){
  .grid-3,.grid-4,.grid-2{grid-template-columns:1fr;}
  .nav-links{display:none;}
}

/* KULLANICI PANEL LAYOUT */
.user-layout{display:grid;grid-template-columns:260px 1fr;gap:28px;padding:32px 5%;}
.user-sidebar{background:var(--card);border:1px solid var(--border);border-radius:16px;padding:24px;height:fit-content;position:sticky;top:88px;}
.user-avatar-big{width:72px;height:72px;border-radius:50%;background:var(--gradient);display:flex;align-items:center;justify-content:center;font-size:1.6rem;font-weight:700;color:#fff;margin:0 auto 16px;}
.user-sidebar .user-name{text-align:center;font-weight:600;margin-bottom:4px;}
.user-sidebar .user-email{text-align:center;font-size:.82rem;color:var(--muted);margin-bottom:24px;}
.sidebar-nav{display:flex;flex-direction:column;gap:4px;}
.sidebar-nav a{display:flex;align-items:center;gap:10px;padding:10px 12px;border-radius:var(--r);color:var(--muted);font-size:.9rem;transition:all .2s;}
.sidebar-nav a:hover,.sidebar-nav a.active{background:rgba(245,158,11,.1);color:var(--gold);}
@media(max-width:860px){.user-layout{grid-template-columns:1fr;}.user-sidebar{position:static;}}

/* SCROLLBAR */
::-webkit-scrollbar{width:6px;height:6px;}
::-webkit-scrollbar-track{background:var(--dark2);}
::-webkit-scrollbar-thumb{background:var(--border);border-radius:3px;}
::-webkit-scrollbar-thumb:hover{background:var(--muted);}

/* ANİMASYON */
@keyframes fadeIn{from{opacity:0;transform:translateY(16px)}to{opacity:1;transform:none}}
.fade-in{animation:fadeIn .5s ease both;}

/* LOADING */
.spinner{width:36px;height:36px;border:3px solid var(--border);border-top-color:var(--gold);border-radius:50%;animation:spin .7s linear infinite;}
@keyframes spin{to{transform:rotate(360deg)}}