/* =============================================
   CCSA - 충청사이버보안아카데미
   멀티캠퍼스 스타일 교육기관 디자인
   ============================================= */
:root {
    --navy:      #003087;
    --navy-dark: #001f5c;
    --navy-mid:  #0d47a1;
    --orange:    #ff6b00;
    --orange-lt: #ff8c35;
    --sky:       #e8f0fe;
    --text:      #1a1a2e;
    --text-mid:  #444;
    --text-muted:#777;
    --border:    #e0e0e0;
    --bg:        #fff;
    --bg-gray:   #f5f7fa;
    --radius-sm: 6px;
    --radius:    12px;
    --radius-lg: 20px;
    --shadow:    0 2px 16px rgba(0,0,0,.08);
    --shadow-md: 0 4px 28px rgba(0,0,0,.12);
    --transition:.25s ease;
}

*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{font-family:'Pretendard','Apple SD Gothic Neo','Malgun Gothic',sans-serif;color:var(--text);background:var(--bg);line-height:1.6;font-size:15px}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none}
ul{list-style:none}

.container{max-width:1180px;margin:0 auto;padding:0 24px}

/* ── 버튼 ── */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;padding:12px 26px;border-radius:var(--radius-sm);font-size:14px;font-weight:700;cursor:pointer;border:2px solid transparent;transition:all var(--transition);white-space:nowrap}
.btn-primary{background:var(--orange);color:#fff;border-color:var(--orange)}
.btn-primary:hover{background:var(--orange-lt);border-color:var(--orange-lt);transform:translateY(-1px);box-shadow:0 6px 20px rgba(255,107,0,.35)}
.btn-navy{background:var(--navy);color:#fff;border-color:var(--navy)}
.btn-navy:hover{background:var(--navy-mid);border-color:var(--navy-mid)}
.btn-outline-navy{background:transparent;color:var(--navy);border-color:var(--navy)}
.btn-outline-navy:hover{background:var(--navy);color:#fff}
.btn-outline-white{background:transparent;color:#fff;border-color:rgba(255,255,255,.6)}
.btn-outline-white:hover{background:rgba(255,255,255,.15);border-color:#fff}
.btn-sm{padding:8px 18px;font-size:13px}
.btn-lg{padding:16px 36px;font-size:16px}

/* ── HEADER ── */
.site-header{position:fixed;top:0;left:0;right:0;z-index:1000;background:#fff;border-bottom:1px solid var(--border);transition:box-shadow var(--transition)}
.site-header.scrolled{box-shadow:0 2px 20px rgba(0,0,0,.1)}
.header-top{background:var(--navy-dark);color:rgba(255,255,255,.7);font-size:12px}
.header-top .container{display:flex;justify-content:flex-end;align-items:center;height:36px;gap:20px}
.header-top a{color:rgba(255,255,255,.7);transition:color var(--transition)}
.header-top a:hover{color:#fff}
.header-top span{opacity:.4}
.header-main .container{display:flex;align-items:center;justify-content:space-between;height:80px}
.logo{display:flex;align-items:center;gap:10px;flex-shrink:0}
.logo-img{height:64px;width:auto;object-fit:contain}
.logo-fallback{font-size:17px;font-weight:800;color:var(--navy);line-height:1.2}
.logo-fallback small{display:block;font-size:10px;font-weight:400;color:var(--text-muted);letter-spacing:1px}
.main-nav .nav-list{display:flex;align-items:center;gap:2px}
.nav-item>a{display:block;padding:8px 16px;font-size:14px;font-weight:600;color:var(--text);border-radius:var(--radius-sm);transition:all var(--transition)}
.nav-item>a:hover{color:var(--navy);background:var(--sky)}
.nav-item.active>a{color:var(--navy)}
.nav-cta{background:var(--orange)!important;color:#fff!important;border-radius:var(--radius-sm)!important}
.nav-cta:hover{background:var(--orange-lt)!important}
.header-actions{display:flex;align-items:center;gap:10px}
.hamburger{display:none;flex-direction:column;gap:5px;cursor:pointer;background:none;border:none;padding:6px}
.hamburger span{display:block;width:22px;height:2px;background:var(--text);border-radius:2px;transition:all .3s}
.hamburger.open span:nth-child(1){transform:translateY(7px) rotate(45deg)}
.hamburger.open span:nth-child(2){opacity:0}
.hamburger.open span:nth-child(3){transform:translateY(-7px) rotate(-45deg)}

/* ── HERO ── */
.hero{padding-top:104px;background:linear-gradient(135deg,var(--navy-dark) 0%,var(--navy) 60%,var(--navy-mid) 100%);position:relative;overflow:hidden;min-height:580px;display:flex;align-items:center}
.hero::after{content:'';position:absolute;right:-80px;bottom:-60px;width:500px;height:500px;background:rgba(255,255,255,.04);border-radius:50%;pointer-events:none}
.hero::before{content:'';position:absolute;right:160px;top:-80px;width:300px;height:300px;background:rgba(255,107,0,.08);border-radius:50%;pointer-events:none}
.hero-grid{position:absolute;inset:0;background-image:linear-gradient(rgba(255,255,255,.03) 1px,transparent 1px),linear-gradient(90deg,rgba(255,255,255,.03) 1px,transparent 1px);background-size:60px 60px;pointer-events:none}
.hero-content{position:relative;z-index:1;width:100%;padding:72px 0}
.hero-eyebrow{display:inline-flex;align-items:center;gap:8px;background:rgba(255,107,0,.2);border:1px solid rgba(255,107,0,.4);color:#ffb366;padding:6px 14px;border-radius:20px;font-size:12px;font-weight:700;letter-spacing:.5px;margin-bottom:20px}
.hero-eyebrow i{font-size:11px}
.hero-title{font-size:clamp(32px,5vw,56px);font-weight:900;color:#fff;line-height:1.2;margin-bottom:18px;letter-spacing:-0.5px}
.hero-title .accent{color:var(--orange)}
.hero-desc{font-size:clamp(15px,2vw,18px);color:rgba(255,255,255,.75);line-height:1.8;margin-bottom:36px;max-width:520px}
.hero-btns{display:flex;gap:12px;flex-wrap:wrap;margin-bottom:56px}
.hero-stats{display:flex;gap:40px;padding-top:32px;border-top:1px solid rgba(255,255,255,.1)}
.hero-stat-num{font-size:32px;font-weight:900;color:#fff;line-height:1}
.hero-stat-num span{color:var(--orange);font-size:18px}
.hero-stat-label{font-size:12px;color:rgba(255,255,255,.55);margin-top:4px;letter-spacing:.3px}
.hero-visual{position:absolute;right:0;top:0;bottom:0;width:42%;display:flex;align-items:center;justify-content:center;overflow:hidden}
.hero-badge-wrap{display:flex;flex-direction:column;gap:16px;padding:40px}
.hero-badge{background:rgba(255,255,255,.08);border:1px solid rgba(255,255,255,.15);border-radius:var(--radius);padding:20px 24px;backdrop-filter:blur(10px);color:#fff}
.hero-badge-icon{font-size:28px;margin-bottom:10px;color:var(--orange)}
.hero-badge h4{font-size:15px;font-weight:700}
.hero-badge p{font-size:12px;color:rgba(255,255,255,.6);margin-top:4px}

/* ── SECTION COMMON ── */
.section{padding:80px 0}
.section-bg{background:var(--bg-gray)}
.section-navy{background:var(--navy-dark);color:#fff}
.section-header{text-align:center;margin-bottom:52px}
.section-header.left{text-align:left}
.eyebrow{display:inline-flex;align-items:center;gap:6px;color:var(--orange);font-size:12px;font-weight:700;letter-spacing:1px;text-transform:uppercase;margin-bottom:10px}
.eyebrow::before{content:'';display:block;width:20px;height:2px;background:var(--orange)}
.section-title{font-size:clamp(24px,4vw,36px);font-weight:800;color:var(--text);line-height:1.3}
.section-title .accent{color:var(--navy)}
.section-title .accent-orange{color:var(--orange)}
.section-navy .section-title{color:#fff}
.section-desc{font-size:15px;color:var(--text-muted);margin-top:12px;line-height:1.7}
.section-navy .section-desc{color:rgba(255,255,255,.65)}
.title-bar{width:40px;height:4px;background:var(--orange);border-radius:2px;margin:14px 0 0}
.section-header.center .title-bar{margin:14px auto 0}

/* ── NOTICE BAND ── */
.notice-band{background:var(--sky);border-bottom:1px solid #c8d8f8;padding:10px 0;font-size:13px}
.notice-band .container{display:flex;align-items:center;gap:16px}
.notice-band-label{background:var(--navy);color:#fff;padding:3px 10px;border-radius:4px;font-size:11px;font-weight:700;white-space:nowrap;flex-shrink:0}
.notice-band-text{color:var(--text-mid);flex:1;overflow:hidden;white-space:nowrap;text-overflow:ellipsis}
.notice-band-text a:hover{color:var(--navy);text-decoration:underline}
.notice-band-date{color:var(--text-muted);font-size:12px;flex-shrink:0}

/* ── FEATURE CARDS ── */
.features-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(220px,1fr));gap:20px}
.feature-card{background:#fff;border:1px solid var(--border);border-radius:var(--radius);padding:32px 24px;transition:all var(--transition);position:relative;overflow:hidden}
.feature-card::before{content:'';position:absolute;top:0;left:0;right:0;height:3px;background:var(--navy);transform:scaleX(0);transform-origin:left;transition:transform var(--transition)}
.feature-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-md);border-color:var(--navy)}
.feature-card:hover::before{transform:scaleX(1)}
.feature-icon{width:52px;height:52px;border-radius:12px;display:flex;align-items:center;justify-content:center;font-size:22px;margin-bottom:18px}
.feature-icon.navy{background:var(--sky);color:var(--navy)}
.feature-icon.orange{background:#fff3e8;color:var(--orange)}
.feature-card h3{font-size:17px;font-weight:700;margin-bottom:10px;color:var(--text)}
.feature-card p{font-size:14px;color:var(--text-muted);line-height:1.75}

/* ── COURSE CARDS ── */
.courses-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(300px,1fr));gap:24px}
.course-card{background:#fff;border:1px solid var(--border);border-radius:var(--radius);overflow:hidden;transition:all var(--transition);display:flex;flex-direction:column}
.course-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-md)}
.course-card-thumb{height:180px;background:linear-gradient(135deg,var(--navy-dark),var(--navy));display:flex;align-items:center;justify-content:center;position:relative;overflow:hidden}
.course-card-thumb img{width:100%;height:100%;object-fit:cover}
.course-card-thumb .no-img{font-size:48px;color:rgba(255,255,255,.15)}
.course-cat-badge{position:absolute;top:14px;left:14px;background:var(--orange);color:#fff;padding:4px 10px;border-radius:4px;font-size:11px;font-weight:700}
.course-card-body{padding:22px 22px 16px;flex:1}
.course-card h3{font-size:16px;font-weight:700;margin-bottom:8px;line-height:1.45;color:var(--text)}
.course-card p{font-size:13px;color:var(--text-muted);line-height:1.7;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.course-meta{display:flex;flex-wrap:wrap;gap:8px;margin-top:14px}
.course-meta-item{display:flex;align-items:center;gap:5px;font-size:12px;color:var(--text-muted)}
.course-meta-item i{color:var(--navy);font-size:11px}
.course-card-footer{padding:14px 22px;border-top:1px solid var(--bg-gray);display:flex;justify-content:space-between;align-items:center}
.course-card-footer .price{font-size:13px;font-weight:700;color:var(--orange)}
.course-card-footer a{font-size:13px;color:var(--navy);font-weight:600}
.course-card-footer a:hover{text-decoration:underline}

/* ── STAT CARDS ── */
.stats-bar{background:var(--navy);color:#fff;padding:0}
.stats-bar .container{display:grid;grid-template-columns:repeat(4,1fr)}
.stat-bar-item{padding:36px 24px;text-align:center;border-right:1px solid rgba(255,255,255,.1)}
.stat-bar-item:last-child{border-right:none}
.stat-bar-num{font-size:40px;font-weight:900;color:#fff;line-height:1}
.stat-bar-num span{font-size:24px;color:var(--orange)}
.stat-bar-label{font-size:13px;color:rgba(255,255,255,.6);margin-top:6px}

/* ── NOTICE / BOARD ── */
.notice-table{width:100%}
.notice-row{display:grid;grid-template-columns:auto 1fr auto auto;align-items:center;gap:16px;padding:16px 0;border-bottom:1px solid var(--border)}
.notice-row:last-child{border-bottom:none}
.notice-pin-badge{background:var(--orange);color:#fff;padding:2px 8px;border-radius:3px;font-size:11px;font-weight:700;white-space:nowrap}
.notice-row-title a{font-size:15px;font-weight:500;color:var(--text);transition:color var(--transition)}
.notice-row-title a:hover{color:var(--navy)}
.notice-row-views{font-size:12px;color:var(--text-muted);white-space:nowrap}
.notice-row-date{font-size:13px;color:var(--text-muted);white-space:nowrap}

/* ── CTA BAND ── */
.cta-band{background:linear-gradient(90deg,var(--orange) 0%,#ff8c35 100%);padding:56px 0;text-align:center}
.cta-band h2{font-size:clamp(22px,3.5vw,34px);font-weight:800;color:#fff;margin-bottom:10px}
.cta-band p{color:rgba(255,255,255,.85);font-size:16px;margin-bottom:28px}

/* ── PARTNER ── */
.partner-row{display:flex;flex-wrap:wrap;gap:10px;justify-content:center}
.partner-chip{background:#fff;border:1px solid var(--border);border-radius:8px;padding:10px 20px;font-size:13px;font-weight:500;color:var(--text-mid);transition:all var(--transition)}
.partner-chip:hover{border-color:var(--navy);color:var(--navy);box-shadow:var(--shadow)}

/* ── FOOTER ── */
.site-footer{background:#0d1b3e;color:rgba(255,255,255,.65)}
.footer-top{padding:56px 0 40px;border-bottom:1px solid rgba(255,255,255,.08)}
.footer-top .container{display:grid;grid-template-columns:280px 1fr 1fr 1fr;gap:40px}
.footer-brand img{height:52px;filter:brightness(0) invert(1);opacity:.85;margin-bottom:14px}
.footer-brand-name{font-size:14px;font-weight:700;color:#fff;margin-bottom:6px}
.footer-brand-info{font-size:12px;line-height:1.9}
.footer-col h4{font-size:13px;font-weight:700;color:#fff;margin-bottom:14px}
.footer-col a{display:block;font-size:13px;color:rgba(255,255,255,.55);margin-bottom:8px;transition:color var(--transition)}
.footer-col a:hover{color:#fff}
.footer-bottom{padding:20px 0;display:flex;justify-content:space-between;align-items:center;font-size:12px;gap:12px;flex-wrap:wrap}
.footer-bottom a{color:rgba(255,255,255,.5)}
.footer-bottom a:hover{color:#fff}
.admin-fab{position:fixed;bottom:24px;left:24px;width:38px;height:38px;background:rgba(255,255,255,.15);backdrop-filter:blur(4px);border:1px solid rgba(255,255,255,.2);border-radius:50%;display:flex;align-items:center;justify-content:center;color:rgba(255,255,255,.5);font-size:13px;transition:all var(--transition);z-index:200}
.admin-fab:hover{background:var(--navy);color:#fff;border-color:var(--navy)}

/* ── SCROLL TOP ── */
.scroll-top{position:fixed;bottom:24px;right:24px;width:44px;height:44px;background:var(--navy);color:#fff;border:none;border-radius:50%;cursor:pointer;font-size:16px;display:none;align-items:center;justify-content:center;box-shadow:0 4px 16px rgba(0,0,0,.2);transition:all var(--transition);z-index:200}
.scroll-top.visible{display:flex}
.scroll-top:hover{background:var(--navy-mid);transform:translateY(-2px)}

/* ── PAGE HERO (내부페이지) ── */
.page-hero{padding:120px 0 52px;background:linear-gradient(135deg,var(--navy-dark) 0%,var(--navy) 100%);color:#fff;position:relative;overflow:hidden}
.page-hero::after{content:'';position:absolute;right:-40px;bottom:-40px;width:300px;height:300px;background:rgba(255,107,0,.06);border-radius:50%;pointer-events:none}
.page-hero-emblem{position:absolute;right:10%;top:50%;transform:translateY(-50%);opacity:.12;pointer-events:none}
.page-hero-emblem img{width:240px;height:240px;object-fit:contain;filter:brightness(0) invert(1)}
.page-hero .eyebrow{color:rgba(255,255,255,.6);font-size:11px}
.page-hero .eyebrow::before{background:rgba(255,255,255,.4)}
.page-hero h1{font-size:clamp(26px,4vw,40px);font-weight:800;margin-top:8px;line-height:1.3}
.page-hero p{font-size:15px;color:rgba(255,255,255,.7);margin-top:10px}
.breadcrumb{display:flex;align-items:center;gap:6px;font-size:12px;color:rgba(255,255,255,.5);margin-top:16px}
.breadcrumb a{color:rgba(255,255,255,.5)}
.breadcrumb a:hover{color:#fff}
.breadcrumb-sep{opacity:.4}

/* ── TABLE ── */
.data-table{width:100%;border-collapse:collapse;font-size:14px}
.data-table th{background:var(--navy);color:#fff;padding:12px 16px;text-align:left;font-weight:600;font-size:13px}
.data-table td{padding:12px 16px;border-bottom:1px solid var(--border);vertical-align:middle}
.data-table tr:hover td{background:var(--bg-gray)}
.data-table td a{color:var(--navy);font-weight:500}
.data-table td a:hover{text-decoration:underline}

/* ── FORM ── */
.form-card{background:#fff;border:1px solid var(--border);border-radius:var(--radius);padding:32px}
.form-group{margin-bottom:18px}
.form-group label{display:block;font-size:13px;font-weight:700;margin-bottom:6px;color:#555}
.form-group label .req{color:var(--orange);margin-left:2px}
.form-group input,.form-group select,.form-group textarea{width:100%;padding:11px 14px;border:1.5px solid var(--border);border-radius:var(--radius-sm);font-size:14px;font-family:inherit;color:var(--text);transition:border-color var(--transition),box-shadow var(--transition);background:#fff}
.form-group input:focus,.form-group select:focus,.form-group textarea:focus{outline:none;border-color:var(--navy);box-shadow:0 0 0 3px rgba(0,48,135,.08)}
.form-group textarea{min-height:120px;resize:vertical}
.form-row{display:grid;grid-template-columns:1fr 1fr;gap:16px}

/* ── PAGINATION ── */
.pagination{display:flex;justify-content:center;gap:4px;margin-top:40px}
.page-btn{display:inline-flex;align-items:center;justify-content:center;min-width:36px;height:36px;padding:0 10px;border:1px solid var(--border);border-radius:var(--radius-sm);font-size:13px;color:var(--text-muted);transition:all var(--transition)}
.page-btn:hover,.page-btn.active{background:var(--navy);color:#fff;border-color:var(--navy)}

/* ── BADGE / ALERT ── */
.badge{display:inline-block;padding:3px 10px;border-radius:4px;font-size:11px;font-weight:700}
.badge-blue{background:#e8f0fe;color:var(--navy)}
.badge-orange{background:#fff3e8;color:var(--orange)}
.badge-green{background:#e8f5e9;color:#2e7d32}
.badge-red{background:#fce4ec;color:#c62828}
.badge-gray{background:#f0f0f0;color:#666}
.alert{padding:13px 16px;border-radius:var(--radius-sm);font-size:14px;margin-bottom:16px;border-left:4px solid}
.alert-success{background:#e8f5e9;color:#1b5e20;border-color:#4caf50}
.alert-danger{background:#fce4ec;color:#880e4f;border-color:#e91e63}
.alert-info{background:#e3f2fd;color:#0d47a1;border-color:#2196f3}
.alert-warn{background:#fff8e1;color:#f57f17;border-color:#ffc107}

/* ── AUTH ── */
.auth-wrap{min-height:100vh;display:flex;align-items:center;justify-content:center;background:var(--bg-gray);padding:24px}
.auth-card{background:#fff;border-radius:var(--radius);padding:44px 40px;width:100%;max-width:420px;box-shadow:var(--shadow-md)}
.auth-logo{text-align:center;margin-bottom:28px}
.auth-logo img{height:56px;margin:0 auto}
.auth-logo h2{font-size:22px;font-weight:800;color:var(--navy);margin-top:10px}
.auth-logo p{font-size:13px;color:var(--text-muted);margin-top:4px}
.auth-footer{text-align:center;margin-top:20px;font-size:13px;color:var(--text-muted)}
.auth-footer a{color:var(--navy);font-weight:600}

/* ── MYPAGE ── */
.mypage-sidebar{background:#fff;border:1px solid var(--border);border-radius:var(--radius);padding:28px;text-align:center}
.mypage-avatar{width:72px;height:72px;background:var(--sky);border-radius:50%;display:flex;align-items:center;justify-content:center;margin:0 auto 14px;font-size:30px;color:var(--navy)}

/* ── ANIMATIONS ── */
.fade-up,.fade-left,.fade-right{opacity:0;transition:opacity .6s ease,transform .6s ease}
.fade-up{transform:translateY(28px)}
.fade-left{transform:translateX(-28px)}
.fade-right{transform:translateX(28px)}
.fade-up.visible,.fade-left.visible,.fade-right.visible{opacity:1;transform:none}

/* ── EMBLEM PULSE ── */
@keyframes pulse {
    0%,100%{transform:scale(1);opacity:.6}
    50%{transform:scale(1.12);opacity:.3}
}
@keyframes rotate-slow {
    from{transform:rotate(0deg)}
    to{transform:rotate(360deg)}
}
.emblem-glow {
    position:relative;display:inline-block;
}
.emblem-glow::before {
    content:'';position:absolute;inset:-20px;
    background:radial-gradient(circle,rgba(255,107,0,.2) 0%,transparent 70%);
    border-radius:50%;animation:pulse 3s ease-in-out infinite;
}

/* ── RESPONSIVE ── */
@media(max-width:1024px){
    .hero-visual{display:none}
    .footer-top .container{grid-template-columns:1fr 1fr}
    .stats-bar .container{grid-template-columns:repeat(2,1fr)}
    .stat-bar-item{border-bottom:1px solid rgba(255,255,255,.1)}
}
@media(max-width:768px){
    .main-nav{display:none;position:fixed;inset:104px 0 0;background:#fff;padding:20px;z-index:999;overflow-y:auto;border-top:1px solid var(--border)}
    .main-nav.open{display:block}
    .nav-list{flex-direction:column;gap:2px}
    .nav-item>a{padding:12px 16px;font-size:15px}
    .hamburger{display:flex}
    .header-main .container{height:68px}
    .logo-img{height:52px}
    .site-header{} /* header-top + header-main */
    .hero{padding-top:104px}
    .hero-stats{gap:24px}
    .hero-btns{flex-direction:column}
    .form-row{grid-template-columns:1fr}
    .stats-bar .container{grid-template-columns:1fr 1fr}
    .footer-top .container{grid-template-columns:1fr}
    .footer-bottom{flex-direction:column;text-align:center}
    .courses-grid{grid-template-columns:1fr}
}
@media(max-width:480px){
    .container{padding:0 16px}
    .section{padding:60px 0}
    .hero-title{font-size:28px}
    .stats-bar .container{grid-template-columns:1fr 1fr}
}