/* ===================================================
   EduLearn Academy — Main Stylesheet
   Aesthetic: Warm Academic / Editorial
   =================================================== */

:root {
  --primary:    #1a3c5e;
  --primary-light: #2a5a8c;
  --accent:     #e8a020;
  --accent2:    #d94f3d;
  --success:    #2ecc71;
  --danger:     #e74c3c;
  --warning:    #f39c12;
  --bg:         #f5f2eb;
  --bg2:        #fffdf8;
  --text:       #1a1a2e;
  --text-muted: #6b7280;
  --border:     #d9d3c5;
  --shadow:     0 4px 24px rgba(26,60,94,0.10);
  --shadow-lg:  0 8px 40px rgba(26,60,94,0.16);
  --radius:     10px;
  --font-head:  'Playfair Display', Georgia, serif;
  --font-body:  'DM Sans', system-ui, sans-serif;
}

*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{font-family:var(--font-body);background:var(--bg);color:var(--text);line-height:1.6;font-size:16px}
img{max-width:100%;height:auto;display:block}
a{color:var(--primary);text-decoration:none;transition:color .2s}
a:hover{color:var(--accent)}

/* === TYPOGRAPHY === */
h1,h2,h3,h4,h5{font-family:var(--font-head);line-height:1.25;color:var(--primary)}
h1{font-size:clamp(2rem,5vw,3.5rem)}
h2{font-size:clamp(1.6rem,3.5vw,2.6rem)}
h3{font-size:1.4rem}
h4{font-size:1.1rem}
p{margin-bottom:1rem}

/* === LAYOUT === */
.container{max-width:1200px;margin:0 auto;padding:0 24px}
.section{padding:72px 0}
.section-alt{background:var(--bg2)}
.grid-2{display:grid;grid-template-columns:1fr 1fr;gap:32px}
.grid-3{display:grid;grid-template-columns:repeat(3,1fr);gap:28px}
.grid-4{display:grid;grid-template-columns:repeat(4,1fr);gap:24px}
@media(max-width:900px){.grid-3,.grid-4{grid-template-columns:1fr 1fr}}
@media(max-width:600px){.grid-2,.grid-3,.grid-4{grid-template-columns:1fr}}

/* === BUTTONS === */
.btn{display:inline-flex;align-items:center;gap:8px;padding:11px 26px;border-radius:6px;font-family:var(--font-body);font-weight:600;font-size:.95rem;cursor:pointer;border:2px solid transparent;transition:all .2s;text-decoration:none}
.btn-primary{background:var(--primary);color:#fff;border-color:var(--primary)}
.btn-primary:hover{background:var(--primary-light);color:#fff;border-color:var(--primary-light)}
.btn-accent{background:var(--accent);color:#fff;border-color:var(--accent)}
.btn-accent:hover{background:#c98a10;color:#fff}
.btn-outline{background:transparent;color:var(--primary);border-color:var(--primary)}
.btn-outline:hover{background:var(--primary);color:#fff}
.btn-danger{background:var(--danger);color:#fff;border-color:var(--danger)}
.btn-success{background:var(--success);color:#fff;border-color:var(--success)}
.btn-sm{padding:7px 16px;font-size:.85rem}
.btn-lg{padding:15px 36px;font-size:1.1rem}
.btn-block{width:100%;justify-content:center}

/* === HEADER === */
.site-header{background:var(--primary);position:sticky;top:0;z-index:999;box-shadow:0 2px 20px rgba(0,0,0,.25)}
.header-top{display:flex;align-items:center;gap:20px;padding:0 28px;height:68px;max-width:1300px;margin:0 auto}
.logo{display:flex;align-items:center;gap:10px;color:#fff;font-family:var(--font-head);font-size:1.35rem;font-weight:700;text-decoration:none;flex-shrink:0}
.logo-icon{font-size:1.6rem}
.logo:hover{color:var(--accent)}
.main-nav{display:flex;align-items:center;gap:4px;flex:1;justify-content:center;flex-wrap:wrap}
.main-nav > a,.nav-dropdown > span{color:#d0dde8;padding:8px 14px;border-radius:6px;font-weight:500;font-size:.92rem;cursor:pointer;transition:all .2s;white-space:nowrap}
.main-nav > a:hover,.nav-dropdown > span:hover{color:#fff;background:rgba(255,255,255,.1)}
.nav-highlight{background:var(--accent) !important;color:#fff !important;border-radius:6px}
.nav-highlight:hover{background:#c98a10 !important}
.nav-dropdown{position:relative}
.dropdown-menu{position:absolute;top:calc(100% + 8px);left:0;background:#fff;border-radius:var(--radius);box-shadow:var(--shadow-lg);min-width:200px;padding:8px;opacity:0;visibility:hidden;transform:translateY(-8px);transition:all .2s;z-index:100}
.nav-dropdown:hover .dropdown-menu{opacity:1;visibility:visible;transform:translateY(0)}
.dropdown-menu a{display:flex;align-items:center;gap:10px;padding:10px 14px;border-radius:6px;color:var(--text);font-size:.9rem;transition:background .15s}
.dropdown-menu a:hover{background:var(--bg);color:var(--primary)}
.header-actions{display:flex;align-items:center;gap:10px;flex-shrink:0}
.header-actions .btn-outline{color:#fff;border-color:rgba(255,255,255,.5)}
.header-actions .btn-outline:hover{background:rgba(255,255,255,.15);border-color:#fff}
.nav-toggle{display:none;background:none;border:none;color:#fff;font-size:1.4rem;cursor:pointer;padding:6px}

/* === HERO === */
.hero{background:linear-gradient(135deg,var(--primary) 0%,#0f2744 60%,#1e4a6e 100%);color:#fff;padding:100px 0 80px;position:relative;overflow:hidden}
.hero::before{content:'';position:absolute;inset:0;background:url("data:image/svg+xml,%3Csvg width='60' height='60' viewBox='0 0 60 60' xmlns='http://www.w3.org/2000/svg'%3E%3Cg fill='none' fill-rule='evenodd'%3E%3Cg fill='%23ffffff' fill-opacity='0.03'%3E%3Cpath d='M36 34v-4h-2v4h-4v2h4v4h2v-4h4v-2h-4zm0-30V0h-2v4h-4v2h4v4h2V6h4V4h-4zM6 34v-4H4v4H0v2h4v4h2v-4h4v-2H6zM6 4V0H4v4H0v2h4v4h2V6h4V4H6z'/%3E%3C/g%3E%3C/g%3E%3C/svg%3E")}
.hero-content{position:relative;z-index:1;max-width:700px}
.hero-tag{display:inline-block;background:rgba(232,160,32,.2);color:var(--accent);padding:6px 16px;border-radius:20px;font-size:.85rem;font-weight:600;margin-bottom:20px;border:1px solid rgba(232,160,32,.3)}
.hero h1{color:#fff;margin-bottom:20px}
.hero p{font-size:1.15rem;color:rgba(255,255,255,.8);margin-bottom:32px;max-width:560px}
.hero-btns{display:flex;gap:14px;flex-wrap:wrap}
.hero-stats{display:flex;gap:40px;margin-top:56px;padding-top:40px;border-top:1px solid rgba(255,255,255,.15)}
.hero-stat strong{display:block;font-size:2rem;font-family:var(--font-head);color:var(--accent)}
.hero-stat span{color:rgba(255,255,255,.7);font-size:.9rem}

/* === CARDS === */
.card{background:var(--bg2);border-radius:var(--radius);box-shadow:var(--shadow);transition:transform .25s,box-shadow .25s;overflow:hidden;border:1px solid var(--border)}
.card:hover{transform:translateY(-4px);box-shadow:var(--shadow-lg)}
.card-img{width:100%;height:180px;object-fit:cover}
.card-img-placeholder{width:100%;height:180px;background:linear-gradient(135deg,#1a3c5e,#2a5a8c);display:flex;align-items:center;justify-content:center;font-size:3rem}
.card-body{padding:20px}
.card-meta{display:flex;align-items:center;gap:10px;font-size:.82rem;color:var(--text-muted);margin-bottom:10px}
.card-title{font-family:var(--font-head);font-size:1.15rem;margin-bottom:8px;color:var(--primary)}
.badge{display:inline-block;padding:3px 10px;border-radius:20px;font-size:.75rem;font-weight:600}
.badge-free{background:#d4edda;color:#155724}
.badge-paid{background:#fff3cd;color:#856404}
.badge-published{background:#d4edda;color:#155724}
.badge-draft{background:#f8d7da;color:#721c24}
.badge-pending{background:#fff3cd;color:#856404}
.badge-approved{background:#d4edda;color:#155724}
.badge-rejected{background:#f8d7da;color:#721c24}

/* === FORMS === */
.form-group{margin-bottom:20px}
.form-label{display:block;font-weight:600;margin-bottom:6px;font-size:.92rem;color:var(--primary)}
.form-control{width:100%;padding:11px 14px;border:2px solid var(--border);border-radius:6px;font-family:var(--font-body);font-size:.95rem;background:#fff;color:var(--text);transition:border-color .2s,box-shadow .2s}
.form-control:focus{outline:none;border-color:var(--primary);box-shadow:0 0 0 3px rgba(26,60,94,.1)}
select.form-control{appearance:none;background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='8' viewBox='0 0 12 8'%3E%3Cpath d='M1 1l5 5 5-5' stroke='%236b7280' stroke-width='2' fill='none'/%3E%3C/svg%3E");background-repeat:no-repeat;background-position:right 14px center;padding-right:40px}
.form-text{font-size:.82rem;color:var(--text-muted);margin-top:4px}
.form-row{display:grid;grid-template-columns:1fr 1fr;gap:20px}
@media(max-width:600px){.form-row{grid-template-columns:1fr}}

/* === ALERTS === */
.alert{padding:14px 18px;border-radius:6px;margin-bottom:20px;font-size:.92rem;border:1px solid}
.alert-success{background:#d4edda;color:#155724;border-color:#c3e6cb}
.alert-danger{background:#f8d7da;color:#721c24;border-color:#f5c6cb}
.alert-warning{background:#fff3cd;color:#856404;border-color:#ffeeba}
.alert-info{background:#d1ecf1;color:#0c5460;border-color:#bee5eb}

/* === PAGE HERO === */
.page-hero{background:linear-gradient(135deg,var(--primary),#2a5a8c);color:#fff;padding:60px 0;text-align:center}
.page-hero h1{color:#fff;margin-bottom:12px}
.page-hero p{color:rgba(255,255,255,.8);font-size:1.05rem}
.breadcrumb{display:flex;align-items:center;justify-content:center;gap:8px;font-size:.85rem;color:rgba(255,255,255,.65);margin-bottom:16px}
.breadcrumb a{color:rgba(255,255,255,.8)}
.breadcrumb span{color:rgba(255,255,255,.5)}

/* === LEARNING CENTER — Auth === */
.auth-page{min-height:calc(100vh - 68px);display:flex;align-items:center;padding:60px 0;background:linear-gradient(135deg,#f5f2eb 0%,#e8e4d8 100%)}
.auth-card{background:#fff;border-radius:16px;box-shadow:var(--shadow-lg);padding:44px;max-width:480px;width:100%;margin:0 auto;border:1px solid var(--border)}
.auth-card h2{text-align:center;margin-bottom:8px}
.auth-card .auth-sub{text-align:center;color:var(--text-muted);margin-bottom:28px;font-size:.92rem}
.auth-tabs{display:flex;gap:0;margin-bottom:28px;background:var(--bg);border-radius:8px;padding:4px}
.auth-tab{flex:1;text-align:center;padding:9px;border-radius:6px;font-weight:600;font-size:.9rem;cursor:pointer;transition:all .2s;color:var(--text-muted);border:none;background:none}
.auth-tab.active{background:#fff;color:var(--primary);box-shadow:0 2px 8px rgba(0,0,0,.1)}

/* === DASHBOARD === */
.lc-layout{display:flex;min-height:calc(100vh - 68px)}
.lc-sidebar{width:260px;background:var(--primary);flex-shrink:0;padding:24px 0}
.lc-sidebar-logo{padding:0 20px 24px;border-bottom:1px solid rgba(255,255,255,.1);margin-bottom:16px;color:#fff;font-family:var(--font-head);font-size:1rem}
.lc-nav a{display:flex;align-items:center;gap:12px;padding:12px 24px;color:rgba(255,255,255,.75);font-size:.9rem;font-weight:500;transition:all .2s;border-left:3px solid transparent}
.lc-nav a:hover,.lc-nav a.active{color:#fff;background:rgba(255,255,255,.08);border-left-color:var(--accent)}
.lc-nav a i{width:18px;text-align:center;font-size:.95rem}
.lc-nav .nav-section{padding:16px 24px 6px;font-size:.72rem;color:rgba(255,255,255,.4);text-transform:uppercase;letter-spacing:.1em}
.lc-main{flex:1;background:var(--bg);overflow-x:hidden}
.lc-topbar{background:#fff;padding:16px 28px;display:flex;align-items:center;justify-content:space-between;border-bottom:1px solid var(--border);box-shadow:0 1px 4px rgba(0,0,0,.06)}
.lc-content{padding:28px}
.stat-cards{display:grid;grid-template-columns:repeat(auto-fit,minmax(200px,1fr));gap:20px;margin-bottom:28px}
.stat-card{background:#fff;border-radius:var(--radius);padding:20px;border:1px solid var(--border);display:flex;align-items:center;gap:16px}
.stat-icon{width:50px;height:50px;border-radius:10px;display:flex;align-items:center;justify-content:center;font-size:1.3rem;flex-shrink:0}
.stat-icon.blue{background:#dbeafe;color:#1d4ed8}
.stat-icon.green{background:#dcfce7;color:#16a34a}
.stat-icon.orange{background:#ffedd5;color:#ea580c}
.stat-icon.red{background:#fee2e2;color:#dc2626}
.stat-value{font-size:1.8rem;font-family:var(--font-head);font-weight:700;color:var(--primary);line-height:1}
.stat-label{font-size:.82rem;color:var(--text-muted);margin-top:4px}

/* === TABLES === */
.table-wrap{background:#fff;border-radius:var(--radius);border:1px solid var(--border);overflow:hidden}
.table-header{padding:16px 20px;display:flex;align-items:center;justify-content:space-between;border-bottom:1px solid var(--border)}
.data-table{width:100%;border-collapse:collapse}
.data-table th{background:var(--bg);padding:12px 16px;text-align:left;font-size:.82rem;font-weight:700;color:var(--text-muted);text-transform:uppercase;letter-spacing:.05em;border-bottom:2px solid var(--border)}
.data-table td{padding:13px 16px;border-bottom:1px solid var(--border);font-size:.9rem;vertical-align:middle}
.data-table tr:last-child td{border-bottom:none}
.data-table tr:hover td{background:#fafaf8}
.table-actions{display:flex;gap:6px;flex-wrap:wrap}

/* === COURSE VIEWER === */
.course-layout{display:flex;min-height:calc(100vh - 68px)}
.course-sidebar{width:300px;background:#fff;border-right:1px solid var(--border);flex-shrink:0;overflow-y:auto;max-height:calc(100vh - 68px);position:sticky;top:68px}
.course-sidebar-title{padding:16px 20px;font-family:var(--font-head);font-size:1rem;border-bottom:1px solid var(--border);color:var(--primary)}
.lesson-list a{display:flex;align-items:center;gap:10px;padding:13px 20px;border-bottom:1px solid #f0ede6;color:var(--text);font-size:.9rem;transition:background .15s}
.lesson-list a:hover,.lesson-list a.active{background:var(--bg);color:var(--primary);font-weight:600}
.lesson-num{width:26px;height:26px;border-radius:50%;background:var(--bg);display:flex;align-items:center;justify-content:center;font-size:.75rem;font-weight:700;flex-shrink:0;color:var(--primary)}
.lesson-list a.active .lesson-num{background:var(--primary);color:#fff}
.course-content-area{flex:1;padding:36px;max-width:860px}
.lesson-content h2{color:var(--primary);margin-bottom:16px}
.lesson-content h3{color:var(--primary-light);margin:24px 0 12px}
.lesson-content p{line-height:1.8;margin-bottom:16px}
.lesson-content ul,.lesson-content ol{padding-left:24px;margin-bottom:16px}
.lesson-content li{margin-bottom:6px;line-height:1.7}
.lesson-content pre{background:#1a1a2e;color:#a8d8a8;padding:20px;border-radius:8px;overflow-x:auto;font-size:.88rem;line-height:1.6;margin:16px 0}
.lesson-content code{background:#f0ede6;padding:2px 6px;border-radius:4px;font-size:.88rem}
.lesson-content pre code{background:none;padding:0}
.lesson-nav-btns{display:flex;justify-content:space-between;margin-top:40px;padding-top:24px;border-top:1px solid var(--border)}

/* === SEARCH BAR === */
.search-bar{display:flex;gap:0;max-width:500px}
.search-bar input{flex:1;padding:10px 16px;border:2px solid var(--border);border-right:none;border-radius:6px 0 0 6px;font-size:.92rem}
.search-bar input:focus{outline:none;border-color:var(--primary)}
.search-bar button{padding:10px 18px;background:var(--primary);color:#fff;border:2px solid var(--primary);border-radius:0 6px 6px 0;cursor:pointer;font-size:.92rem;transition:background .2s}
.search-bar button:hover{background:var(--primary-light)}

/* === QR CODE PAYMENT === */
.payment-box{background:var(--bg);border:2px solid var(--border);border-radius:12px;padding:24px;text-align:center}
.payment-box .qr-img{width:200px;height:200px;margin:0 auto 12px;border:4px solid #fff;border-radius:8px;box-shadow:var(--shadow)}
.upi-id{font-family:monospace;font-size:1.1rem;color:var(--primary);font-weight:700;background:#fff;padding:8px 16px;border-radius:6px;display:inline-block;margin:8px 0}

/* === MISC === */
.section-head{text-align:center;margin-bottom:48px}
.section-head h2{margin-bottom:12px}
.section-head p{color:var(--text-muted);max-width:560px;margin:0 auto}
.divider{height:3px;width:50px;background:var(--accent);margin:16px auto}
.text-center{text-align:center}
.mt-4{margin-top:16px}
.mt-8{margin-top:32px}
.mb-0{margin-bottom:0}
.text-muted{color:var(--text-muted)}
.text-sm{font-size:.85rem}
.profile-img{width:80px;height:80px;border-radius:50%;object-fit:cover;border:3px solid var(--primary)}

/* === ADMIN PANEL === */
.admin-body{background:#f0ede8}
.admin-topbar-title{font-family:var(--font-head);font-size:1.1rem;color:var(--primary)}
.content-editor{border:2px solid var(--border);border-radius:8px;overflow:hidden}
.editor-toolbar{background:var(--bg);padding:8px 12px;display:flex;gap:4px;flex-wrap:wrap;border-bottom:2px solid var(--border)}
.editor-btn{padding:5px 10px;border:1px solid var(--border);background:#fff;border-radius:4px;cursor:pointer;font-size:.82rem;font-weight:600;color:var(--text);transition:all .15s}
.editor-btn:hover{background:var(--primary);color:#fff;border-color:var(--primary)}
#editorArea{min-height:300px;padding:16px;outline:none;font-family:var(--font-body);line-height:1.7;font-size:.95rem}

/* === RESPONSIVE === */
@media(max-width:900px){
  .lc-sidebar{display:none}
  .course-sidebar{display:none}
  .main-nav{display:none}
  .nav-toggle{display:block}
  .hero-stats{flex-wrap:wrap;gap:24px}
  .form-row{grid-template-columns:1fr}
  .header-top{padding:0 16px}
}
@media(max-width:600px){
  .auth-card{padding:28px 20px}
  .lc-content{padding:16px}
  .section{padding:48px 0}
}

/* === TRANSITIONS === */
.fade-in{animation:fadeIn .4s ease-in}
@keyframes fadeIn{from{opacity:0;transform:translateY(16px)}to{opacity:1;transform:translateY(0)}}

/* Mobile nav overlay */
.mobile-nav{display:none;position:fixed;inset:0;background:var(--primary);z-index:9999;flex-direction:column;padding:24px}
.mobile-nav.open{display:flex}
.mobile-nav a{color:#fff;padding:14px 0;border-bottom:1px solid rgba(255,255,255,.1);font-size:1.05rem;font-weight:500}
.mobile-nav-close{align-self:flex-end;background:none;border:none;color:#fff;font-size:1.5rem;cursor:pointer;margin-bottom:16px}

/* === FOOTER GRID === */
.site-footer{background:#1a1a2e;color:rgba(255,255,255,.75);padding:56px 0 0}
.footer-grid{display:grid;grid-template-columns:2fr 1fr 1fr 1fr;gap:40px;margin-bottom:40px}
.footer-logo{font-family:var(--font-head);font-size:1.2rem;color:#fff;margin-bottom:12px}
.footer-col h4{color:#fff;font-size:.95rem;margin-bottom:16px;font-family:var(--font-head)}
.footer-col ul{list-style:none;padding:0;margin:0}
.footer-col ul li{margin-bottom:8px}
.footer-col ul li a{color:rgba(255,255,255,.6);font-size:.9rem;transition:color .2s}
.footer-col ul li a:hover{color:var(--accent)}
.footer-col p{font-size:.88rem;color:rgba(255,255,255,.6);margin-bottom:8px}
.social-links{display:flex;gap:12px;margin-top:16px}
.social-links a{width:36px;height:36px;border-radius:50%;background:rgba(255,255,255,.1);display:flex;align-items:center;justify-content:center;color:rgba(255,255,255,.7);transition:all .2s}
.social-links a:hover{background:var(--accent);color:#fff}
.footer-bottom{border-top:1px solid rgba(255,255,255,.1);padding:20px 0;text-align:center;font-size:.85rem;color:rgba(255,255,255,.4)}
@media(max-width:900px){.footer-grid{grid-template-columns:1fr 1fr}}
@media(max-width:600px){.footer-grid{grid-template-columns:1fr}}

/* === UTILITY === */
.hidden{display:none !important}