:root{
  --ink:#0E1A3A; --ink-2:#18284F; --blue:#2F5BFF; --blue-d:#2347D6; --mint:#12B886; --sun:#FFB627;
  --bg:#F6F8FD; --card:#fff; --text:#1B2540; --muted:#5B6785; --line:#E3E8F4;
  --danger:#D6336C; --ok:#0B8F6A;
  --r-sm:8px; --r-md:14px; --r-lg:24px;
  --shadow:0 1px 2px rgba(14,26,58,.06),0 8px 24px rgba(14,26,58,.06);
  --font:'Hind Siliguri','Noto Sans Bengali','Kalpurush',system-ui,sans-serif;
}
*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{font-family:var(--font);background:var(--bg);color:var(--text);line-height:1.75;font-size:17px;-webkit-font-smoothing:antialiased}
img,svg{max-width:100%;display:block}
a{color:var(--blue);text-decoration:none}
a:hover{color:var(--blue-d)}
:focus-visible{outline:3px solid var(--sun);outline-offset:2px;border-radius:4px}
.container{width:min(1140px,92%);margin-inline:auto}
h1,h2,h3{line-height:1.35;color:var(--ink);font-weight:700}
h1{font-size:clamp(2rem,5vw,3.4rem)}
h2{font-size:clamp(1.6rem,3.4vw,2.2rem)}
h3{font-size:1.2rem}
p{color:var(--muted)}
.section{padding:72px 0}
.section-head{max-width:640px;margin-bottom:40px}
.section-head p{margin-top:8px}

/* Header */
.site-header{position:sticky;top:0;z-index:50;background:rgba(246,248,253,.88);backdrop-filter:blur(12px);border-bottom:1px solid var(--line)}
.nav{display:flex;align-items:center;justify-content:space-between;height:68px;gap:16px}
.brand{display:flex;align-items:center;gap:10px;font-weight:700;font-size:1.2rem;color:var(--ink)}
.brand-mark{width:34px;height:34px;border-radius:10px;background:linear-gradient(135deg,var(--blue),var(--mint));display:grid;place-items:center;color:#fff;font-size:1.05rem}
.nav-links{display:flex;align-items:center;gap:6px;list-style:none}
.nav-links a{display:block;padding:8px 14px;border-radius:999px;color:var(--text);font-weight:500}
.nav-links a:hover{background:#E9EEFB;color:var(--ink)}
.nav-links a.active{background:var(--ink);color:#fff}
.nav-links .btn{padding:8px 18px}
.menu-btn{display:none;background:none;border:1px solid var(--line);border-radius:10px;width:42px;height:42px;cursor:pointer;color:var(--ink);font-size:1.3rem}

/* Buttons */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;padding:12px 24px;border-radius:999px;border:2px solid transparent;font:inherit;font-weight:600;cursor:pointer;transition:transform .15s,background .15s,box-shadow .15s}
.btn:active{transform:scale(.97)}
.btn-primary{background:var(--blue);color:#fff}
.btn-primary:hover{background:var(--blue-d);color:#fff}
.btn-sun{background:var(--sun);color:var(--ink)}
.btn-sun:hover{background:#ffc24d;color:var(--ink)}
.btn-ghost{border-color:rgba(255,255,255,.35);color:#fff}
.btn-ghost:hover{background:rgba(255,255,255,.1);color:#fff}
.btn-outline{border-color:var(--line);background:#fff;color:var(--ink)}
.btn-outline:hover{border-color:var(--blue);color:var(--blue)}
.btn[disabled]{opacity:.6;cursor:not-allowed}
.btn-block{width:100%}

/* Hero */
.hero{background:var(--ink);color:#fff;position:relative;overflow:hidden}
.hero::before{content:"";position:absolute;inset:auto -10% -40% auto;width:620px;height:620px;border-radius:50%;background:radial-gradient(circle,rgba(47,91,255,.55),transparent 65%)}
.hero-grid{display:grid;grid-template-columns:1.1fr .9fr;gap:48px;align-items:center;padding:84px 0;position:relative}
.hero h1{color:#fff}
.hero h1 span{color:var(--sun)}
.hero p{color:#C5CEE8;font-size:1.15rem;margin:18px 0 30px;max-width:520px}
.hero-actions{display:flex;flex-wrap:wrap;gap:12px}
.hero-facts{display:flex;gap:32px;margin-top:40px;flex-wrap:wrap}
.hero-facts b{display:block;font-size:1.8rem;color:#fff;line-height:1.2}
.hero-facts small{color:#9FAACC}

/* Browser mock */
.mock{background:#fff;border-radius:var(--r-md);box-shadow:0 30px 60px rgba(0,0,0,.35);overflow:hidden;transform:rotate(-2deg);animation:rise .8s ease-out both}
.mock-bar{display:flex;gap:6px;padding:12px 14px;background:#EEF1F9}
.mock-bar i{width:10px;height:10px;border-radius:50%;background:#C8D0E6}
.mock-body{padding:22px;display:grid;gap:14px}
.mock-row{display:grid;grid-template-columns:repeat(3,1fr);gap:12px}
.mock-tile{height:70px;border-radius:12px;background:linear-gradient(135deg,#E6ECFF,#F3F6FF)}
.mock-tile:nth-child(2){background:linear-gradient(135deg,#DDF6EC,#F1FBF7)}
.mock-tile:nth-child(3){background:linear-gradient(135deg,#FFF1D3,#FFF9EA)}
.mock-chart{height:130px;border-radius:12px;background:linear-gradient(180deg,#F3F6FF,#fff);display:flex;align-items:flex-end;gap:10px;padding:14px}
.mock-chart i{flex:1;border-radius:6px 6px 0 0;background:var(--blue)}
.mock-chart i:nth-child(even){background:var(--mint)}
@keyframes rise{from{opacity:0;transform:translateY(24px) rotate(-2deg)}to{opacity:1;transform:translateY(0) rotate(-2deg)}}

/* Cards */
.grid{display:grid;gap:22px}
.grid-3{grid-template-columns:repeat(3,1fr)}
.grid-2{grid-template-columns:repeat(2,1fr)}
.card{background:var(--card);border:1px solid var(--line);border-radius:var(--r-md);padding:26px;box-shadow:var(--shadow)}
.card p{margin-top:8px}
.icon{width:48px;height:48px;border-radius:14px;display:grid;place-items:center;font-size:1.4rem;background:#E9EEFF;margin-bottom:14px}
.card:nth-child(3n+2) .icon{background:#DDF6EC}
.card:nth-child(3n) .icon{background:#FFF1D3}

/* Steps */
.steps{display:grid;grid-template-columns:repeat(4,1fr);gap:22px;counter-reset:s}
.step{position:relative;padding-top:20px;border-top:3px solid var(--blue)}
.step:nth-child(2){border-color:var(--mint)}
.step:nth-child(3){border-color:var(--sun)}
.step:nth-child(4){border-color:var(--ink)}
.step p{margin-top:6px}

/* CTA */
.cta{background:linear-gradient(120deg,var(--blue),#5B3FFF);border-radius:var(--r-lg);color:#fff;padding:52px 40px;display:flex;justify-content:space-between;align-items:center;gap:24px;flex-wrap:wrap}
.cta h2{color:#fff}
.cta p{color:#DCE3FF;margin-top:6px}

/* Page title */
.page-title{background:var(--ink);color:#fff;padding:56px 0}
.page-title h1{color:#fff;font-size:clamp(1.8rem,4vw,2.6rem)}
.page-title p{color:#C5CEE8;margin-top:8px;max-width:560px}

/* Portfolio */
.filters{display:flex;flex-wrap:wrap;gap:10px;margin-bottom:28px}
.chip{border:1px solid var(--line);background:#fff;padding:7px 18px;border-radius:999px;font:inherit;cursor:pointer;color:var(--text)}
.chip[aria-pressed="true"]{background:var(--ink);color:#fff;border-color:var(--ink)}
.work{padding:0;overflow:hidden}
.work-thumb{height:170px;display:grid;place-items:center;font-size:3rem;color:#fff}
.work-body{padding:22px}
.work-video{padding:0;min-width:0}
.work-video-frame{position:relative;aspect-ratio:9/16;background:#0E1A3A;overflow:hidden}
.work-video-frame iframe{border:0;position:absolute;inset:0;width:100%;height:100%}
.work-video .work-body{padding:16px 20px}
.work-video .tag{margin-bottom:0}
.work-video h3{margin-top:8px;font-size:1.05rem}
.work-banner .banner-preview{display:block;width:100%;padding:0;border:0;background:#f1f3f8;cursor:zoom-in}
.work-banner .banner-preview img{display:block;width:100%;height:auto;object-fit:contain}
.work-banner .banner-preview:focus-visible{outline:3px solid var(--blue);outline-offset:-3px}
.work-banner .work-body{padding:14px 18px}
.work-banner h3{margin:8px 0 0;font-size:1.05rem}
.banner-lightbox{position:fixed;inset:0;width:min(96vw,1400px);max-width:none;height:min(94vh,1000px);max-height:none;padding:48px 18px 18px;border:0;border-radius:12px;background:rgba(10,14,24,.96);overflow:hidden}
.banner-lightbox::backdrop{background:rgba(5,8,16,.82)}
.banner-lightbox img{display:block;width:100%;height:100%;object-fit:contain}
.banner-lightbox-close{position:absolute;top:8px;right:12px;width:38px;height:38px;padding:0;border:1px solid rgba(255,255,255,.55);border-radius:50%;background:rgba(0,0,0,.5);color:#fff;font-size:28px;line-height:1;cursor:pointer}
.work-audio .work-body{padding:20px}
.work-audio h3{margin:8px 0 16px;font-size:1.05rem}
.work-audio audio{display:block;width:100%}
.tag{display:inline-block;font-size:.85rem;padding:2px 12px;border-radius:999px;background:#E9EEFF;color:var(--blue-d);margin-bottom:8px}

/* Forms */
.form-wrap{display:grid;place-items:start center;padding:56px 0 80px}
.form-card{width:min(460px,100%);background:#fff;border:1px solid var(--line);border-radius:var(--r-lg);padding:34px;box-shadow:var(--shadow)}
.form-card h1{font-size:1.7rem}
.form-card .sub{margin:6px 0 22px}
.field{margin-bottom:16px}
label{display:block;font-weight:600;margin-bottom:6px;color:var(--ink);font-size:.97rem}
input,textarea{width:100%;font:inherit;padding:12px 14px;border:1.5px solid var(--line);border-radius:var(--r-sm);background:#FAFBFF;color:var(--text);transition:border .15s,box-shadow .15s}
input:focus,textarea:focus{outline:none;border-color:var(--blue);box-shadow:0 0 0 4px rgba(47,91,255,.15);background:#fff}
textarea{min-height:140px;resize:vertical}
.hint{font-size:.88rem;color:var(--muted);margin-top:4px}
.alert{padding:12px 14px;border-radius:var(--r-sm);margin-bottom:16px;font-size:.97rem;display:none}
.alert.show{display:block}
.alert.error{background:#FFE9F1;color:#9C1F4B;border:1px solid #F8C3D5}
.alert.success{background:#E2F7EF;color:#07684C;border:1px solid #B5E8D5}
.form-links{display:flex;justify-content:space-between;flex-wrap:wrap;gap:8px;margin-top:18px;font-size:.95rem}
.hp{position:absolute;left:-9999px}
.contact-grid{display:grid;grid-template-columns:1fr 1.2fr;gap:28px;padding:56px 0 80px}
.contact-grid .form-card{width:100%}
.info-list{list-style:none;display:grid;gap:18px;margin-top:18px}
.info-list li{display:flex;gap:14px;align-items:flex-start}
.info-list .icon{margin:0;flex:none}

/* Dashboard */
.profile-card dl{display:grid;grid-template-columns:140px 1fr;gap:12px 16px;margin-top:18px}
.profile-card dt{color:var(--muted)}
.profile-card dd{color:var(--ink);font-weight:500;word-break:break-all}

/* Footer */
.site-footer{background:var(--ink);color:#C5CEE8;padding:48px 0 24px;margin-top:0}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr;gap:32px}
.site-footer h3{color:#fff;margin-bottom:10px;font-size:1.05rem}
.site-footer a{color:#C5CEE8}
.site-footer a:hover{color:#fff}
.site-footer ul{list-style:none;display:grid;gap:6px}
.site-footer p{color:#9FAACC}
.copy{border-top:1px solid rgba(255,255,255,.12);margin-top:32px;padding-top:18px;font-size:.92rem;color:#9FAACC}

/* 404 */
.center-page{min-height:60vh;display:grid;place-items:center;text-align:center;padding:60px 0}
.center-page h1{font-size:5rem;color:var(--blue)}

/* Course catalog */
.courses-page{--course-navy:#0B1634;--course-blue:#3F67FF;--course-mint:#58E0B7;--course-lilac:#A99BFF;overflow:hidden}
.course-hero{position:relative;overflow:hidden;background:radial-gradient(ellipse at 80% 15%,rgba(68,94,214,.34),transparent 36%),linear-gradient(125deg,#09142F 0%,#111E47 58%,#202A65 100%);color:#fff}
.course-hero::before{content:"";position:absolute;width:580px;height:580px;right:-250px;top:-350px;border:1px solid rgba(169,155,255,.16);border-radius:50%;box-shadow:0 0 0 36px rgba(169,155,255,.035),0 0 0 72px rgba(169,155,255,.025)}
.course-hero-grid{min-height:560px;display:grid;grid-template-columns:1.08fr .92fr;align-items:center;gap:36px;padding:70px 0 76px;position:relative}
.course-hero-copy{position:relative;z-index:1}
.course-kicker{display:inline-flex;align-items:center;gap:9px;padding:7px 13px;border:1px solid rgba(88,224,183,.32);border-radius:999px;background:rgba(88,224,183,.08);color:#A2F5DB;font-size:.91rem}
.course-kicker span{color:var(--sun);font-size:1.1rem}
.course-hero h1{color:#fff;font-size:clamp(2.5rem,5.2vw,4.4rem);line-height:1.2;letter-spacing:-.04em;margin:22px 0 16px;max-width:720px}
.course-hero h1 span{background:linear-gradient(95deg,#FFE08A,#85F2D1 68%,#B5AAFF);color:transparent;background-clip:text;-webkit-background-clip:text}
.course-hero-copy>p{max-width:620px;color:#C7D0E9;font-size:1.14rem;line-height:1.85;margin-bottom:27px}
.course-hero-actions{display:flex;flex-wrap:wrap;align-items:center;gap:12px}
.course-hero-actions .btn{min-height:52px}
.course-hero-note{display:flex;flex-wrap:wrap;gap:9px 17px;margin-top:27px;color:#B4C1DC;font-size:.9rem}
.course-hero-note span{color:var(--course-mint);font-weight:700}
.course-visual{height:390px;position:relative;display:grid;place-items:center;isolation:isolate}
.course-visual::before{content:"";position:absolute;inset:8% 12%;border-radius:50%;background:radial-gradient(circle,rgba(91,105,255,.2),rgba(13,22,54,0) 68%);z-index:-1}
.course-visual-orbit{position:absolute;border:1px solid rgba(173,184,255,.23);border-radius:50%;transform:rotate(-25deg)}
.orbit-one{width:360px;height:210px}.orbit-two{width:260px;height:330px;transform:rotate(47deg);border-color:rgba(88,224,183,.2)}
.course-visual-core{width:162px;height:162px;border-radius:50%;display:flex;flex-direction:column;align-items:center;justify-content:center;background:linear-gradient(145deg,#273B81,#18295F 64%,#12204C);border:1px solid rgba(255,255,255,.22);box-shadow:0 0 0 12px rgba(255,255,255,.035),0 20px 70px rgba(0,0,0,.3);color:#fff;text-align:center}
.course-visual-core span{position:absolute;margin-top:-77px;color:#FFE08A;font-size:1.3rem}.course-visual-core strong{font:700 3.2rem/1 system-ui,sans-serif;letter-spacing:-.08em;background:linear-gradient(120deg,#fff,#8DF0D1);color:transparent;background-clip:text}.course-visual-core small{font:600 .58rem/1.3 system-ui,sans-serif;letter-spacing:.2em;color:#B8C5E7;margin-top:8px}
.course-float{position:absolute;display:flex;align-items:center;gap:8px;padding:10px 15px;border:1px solid rgba(255,255,255,.19);border-radius:14px;background:rgba(24,37,82,.8);box-shadow:0 14px 38px rgba(0,0,0,.2);backdrop-filter:blur(12px);color:#EDF2FF;font-size:.9rem;animation:course-float 5s ease-in-out infinite}
.course-float span{display:grid;place-items:center;width:26px;height:26px;border-radius:8px;background:rgba(88,224,183,.15);color:#A2F5DB;font-size:1rem}
.float-prompt{top:48px;left:2%;animation-delay:-.6s}.float-video{top:73px;right:0;animation-delay:-2s}.float-audio{bottom:55px;left:5%;animation-delay:-3.5s}.float-design{bottom:49px;right:1%;animation-delay:-1.2s}
@keyframes course-float{0%,100%{transform:translateY(0)}50%{transform:translateY(-8px)}}
.course-feature{padding:64px 0 52px;background:linear-gradient(180deg,#F7F9FE,#fff)}
.course-catalog-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(min(100%,440px),1fr));gap:20px;align-items:stretch}
.course-catalog-card{display:grid;grid-template-columns:.7fr 1.3fr;min-width:0;overflow:hidden;border:1px solid #E3E8F2;border-radius:23px;background:#fff;box-shadow:0 14px 38px rgba(29,39,75,.075);transition:transform .18s,border-color .18s,box-shadow .18s}
.course-catalog-card:hover{transform:translateY(-3px);border-color:#C8D2EF;box-shadow:0 20px 42px rgba(29,39,75,.12)}
.catalog-art{min-height:100%;min-height:350px;position:relative;display:flex;flex-direction:column;align-items:center;justify-content:center;overflow:hidden;background:radial-gradient(circle at 50% 45%,rgba(110,174,255,.35),transparent 25%),linear-gradient(145deg,#172750,#283C79 60%,#4F46A6);color:#fff;text-align:center}
.catalog-art::before,.catalog-art::after{content:"";position:absolute;width:260px;height:260px;border:1px solid rgba(255,255,255,.2);border-radius:50%;box-shadow:0 0 0 22px rgba(255,255,255,.04),0 0 0 44px rgba(255,255,255,.025)}
.catalog-art::after{width:170px;height:170px;box-shadow:none;border-color:rgba(255,255,255,.16)}
.catalog-art>span{position:absolute;z-index:1;top:calc(50% - 67px);color:#FFE08A;font-size:1.4rem}
.catalog-art strong{position:relative;z-index:1;font:700 3.2rem/1 system-ui,sans-serif;letter-spacing:-.08em;background:linear-gradient(120deg,#fff,#8DF0D1);color:transparent;background-clip:text}
.catalog-art small{position:relative;z-index:1;margin-top:9px;color:#CFD9F3;font:600 .58rem/1.4 system-ui,sans-serif;letter-spacing:.18em}
.course-catalog-security .catalog-art{background:radial-gradient(circle at 50% 45%,rgba(88,224,183,.25),transparent 28%),linear-gradient(145deg,#0B182A,#123B4A 60%,#155A59)}
.course-catalog-security .catalog-art strong{background:linear-gradient(120deg,#fff,#8DF0D1)}
.catalog-card-body{align-self:center;padding:27px 28px}
.catalog-meta{display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:8px;margin-bottom:13px}
.catalog-level{color:#52627D;font-size:.78rem;font-weight:600}
.catalog-card-body h3{margin:0 0 9px;color:#142343;font-size:clamp(1.28rem,2vw,1.7rem);line-height:1.3}
.course-catalog-security .catalog-card-body h3{font-size:clamp(1.15rem,1.7vw,1.48rem);letter-spacing:.015em}
.catalog-card-body>p{font-size:.92rem;line-height:1.75}
.catalog-highlights{display:grid;gap:6px;margin:15px 0 20px;list-style:none}
.catalog-highlights li{position:relative;padding-left:19px;color:#465573;font-size:.86rem;line-height:1.55}
.catalog-highlights li::before{content:"✓";position:absolute;left:0;color:#0C9870;font-weight:700}
.catalog-actions{display:flex;flex-wrap:wrap;align-items:center;gap:9px 15px}
.catalog-actions .btn{min-height:46px;padding:11px 16px;font-size:.88rem}
.catalog-contact{color:#3F5FC8;font-size:.86rem;font-weight:600;text-decoration:underline;text-underline-offset:3px}
.catalog-card-body>small{display:block;margin-top:10px;color:var(--muted);font-size:.76rem}
.course-outcomes{padding-top:46px;padding-bottom:72px;background:linear-gradient(180deg,#F6F8FD,#EDF2FC)}
.course-outcomes{padding-top:46px;padding-bottom:72px;background:linear-gradient(180deg,#F6F8FD,#EDF2FC)}
.course-section-heading{text-align:center;max-width:740px;margin:0 auto 36px}
.course-overline{display:inline-block;color:#4B62D8;text-transform:uppercase;letter-spacing:.12em;font-size:.85rem;font-weight:700}
.course-section-heading h2{margin:8px 0 9px;font-size:clamp(1.75rem,3.5vw,2.45rem)}
.course-section-heading>p{max-width:660px;margin:0 auto;font-size:1.02rem}
.course-outcome-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:16px}
.course-outcome{padding:24px 21px;border:1px solid rgba(225,231,240,.95);border-radius:18px;background:rgba(255,255,255,.86);box-shadow:0 10px 28px rgba(29,39,75,.045)}
.outcome-icon{display:grid;place-items:center;width:46px;height:46px;border-radius:14px;font-size:1.3rem}.outcome-blue{background:#E9EEFF;color:#3F67FF}.outcome-mint{background:#DDF7ED;color:#078B69}.outcome-sun{background:#FFF1D3;color:#B97400}.outcome-purple{background:#EEE9FF;color:#7458DA}
.course-outcome h3{margin:16px 0 5px;font-size:1.08rem}.course-outcome p{font-size:.91rem;line-height:1.7}
.course-syllabus{padding-top:78px;padding-bottom:80px;background:#fff;scroll-margin-top:80px}
.syllabus-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:17px;align-items:stretch}
.syllabus-card{position:relative;overflow:hidden;padding:21px 22px 23px;border:1px solid #E4E9F3;border-radius:18px;background:linear-gradient(160deg,#fff,#FBFCFF);box-shadow:0 8px 24px rgba(28,40,76,.045);transition:transform .18s,border-color .18s,box-shadow .18s}
.syllabus-card:hover{transform:translateY(-3px);border-color:#BECDFB;box-shadow:0 16px 32px rgba(28,40,76,.09)}
.syllabus-card-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:13px}.syllabus-number{font:700 .78rem/1 system-ui,sans-serif;letter-spacing:.12em;color:#8995AE}.syllabus-icon{display:grid;place-items:center;width:38px;height:38px;border-radius:12px;background:#EAF0FF;color:#425FD4;font-size:1.18rem}.syllabus-card:nth-child(3n+2) .syllabus-icon{background:#E3F8EF;color:#0C9870}.syllabus-card:nth-child(3n) .syllabus-icon{background:#FFF2D8;color:#A76D04}
.syllabus-category{color:#64728E;font:700 .66rem/1.5 system-ui,sans-serif;letter-spacing:.12em}.syllabus-card h3{font-size:1.16rem;margin:4px 0 12px;color:#142343}.syllabus-card ul{list-style:none;display:grid;gap:7px}.syllabus-card li{position:relative;padding-left:17px;color:#56647E;font-size:.93rem;line-height:1.55}.syllabus-card li::before{content:"";position:absolute;left:1px;top:.7em;width:5px;height:5px;border-radius:50%;background:#5A73E5}.syllabus-card li ul{margin:6px 0 3px 2px;padding-left:7px;border-left:1px solid #E0E6F2;gap:4px}.syllabus-card li ul li{font-size:.87rem;color:#71809A}.syllabus-card li ul li::before{width:4px;height:4px;background:#91A3DD}.syllabus-card li strong{font-weight:600;color:#465573}.syllabus-card-wide{grid-column:span 3}.syllabus-automation-list{grid-template-columns:repeat(2,minmax(0,1fr));column-gap:24px}
.pentest-syllabus{background:linear-gradient(180deg,#F5F9FB,#EDF5F5);scroll-margin-top:80px}
.security-notice{display:flex;align-items:flex-start;gap:14px;max-width:920px;margin:0 auto 25px;padding:17px 20px;border:1px solid #B8E4D7;border-radius:16px;background:#E7F7F1;color:#24534A}
.security-notice>span{flex:0 0 auto;display:grid;place-items:center;width:34px;height:34px;border-radius:11px;background:#D1F0E4;color:#087A5B;font-size:1.2rem}
.security-notice p{margin:0;font-size:.92rem;line-height:1.7}.security-notice strong{color:#164B3E}
.pentest-syllabus-grid .syllabus-icon{background:#E0F5EE;color:#087A5B}
.pentest-syllabus-grid .syllabus-card:nth-child(3n+2) .syllabus-icon{background:#E4F0FF;color:#3764BD}
.pentest-syllabus-grid .syllabus-card:nth-child(3n) .syllabus-icon{background:#EAF4E4;color:#528039}
.pentest-next-step{display:flex;align-items:center;justify-content:space-between;gap:22px;margin-top:28px;padding:26px 30px;border:1px solid #DCE7E9;border-radius:20px;background:#fff;box-shadow:0 10px 28px rgba(29,55,68,.05)}
.pentest-next-step h3{margin:5px 0;font-size:1.2rem;color:#142343}.pentest-next-step p{margin:0;font-size:.9rem}
.pentest-next-step .btn{flex:0 0 auto;min-height:48px}
.course-cta-section{padding-top:0;background:#fff}.course-cta-banner{position:relative;overflow:hidden;text-align:center;padding:58px 28px 52px;border-radius:28px;background:radial-gradient(circle at 90% 8%,rgba(108,127,255,.34),transparent 29%),linear-gradient(125deg,#0B1634,#182956 65%,#2B3978);color:#fff;box-shadow:0 22px 48px rgba(22,37,83,.16)}
.course-cta-banner::before{content:"";position:absolute;width:260px;height:260px;border:1px solid rgba(255,255,255,.12);border-radius:50%;right:-100px;bottom:-180px;box-shadow:0 0 0 25px rgba(255,255,255,.025),0 0 0 50px rgba(255,255,255,.02)}
.course-cta-banner .course-overline{color:#9BF0D5}.course-cta-banner h2{position:relative;color:white;font-size:clamp(1.75rem,3.8vw,2.65rem);margin:10px auto 8px;max-width:760px}.course-cta-banner p{position:relative;color:#C7D0E9;max-width:660px;margin:0 auto 23px;font-size:1.02rem}.course-cta-banner .btn{position:relative;min-height:52px}.course-cta-banner small{position:relative;display:block;margin-top:11px;color:#AAB8D8;font-size:.83rem}.cta-decoration{position:absolute;top:14px;left:9%;color:rgba(255,224,138,.7);font-size:2rem}
.courses-page :focus-visible{outline-color:#FFB627;outline-offset:4px}
@media(max-width:900px){.course-hero-grid{grid-template-columns:1fr;gap:4px;padding:65px 0 40px}.course-hero-copy{max-width:740px}.course-visual{height:330px;max-width:600px;width:100%;margin:0 auto}.course-catalog-card{grid-template-columns:.62fr 1.38fr}.catalog-card-body{padding:25px 22px}.course-outcome-grid{grid-template-columns:repeat(2,1fr)}.syllabus-grid{grid-template-columns:repeat(2,minmax(0,1fr))}.syllabus-card-wide{grid-column:span 2}}
@media(max-width:620px){.course-hero-grid{padding:48px 0 28px}.course-hero h1{font-size:clamp(2.35rem,10vw,3.15rem);margin-top:17px}.course-hero-copy>p{font-size:1.02rem}.course-hero-note{font-size:.81rem;gap:6px 10px}.course-visual{height:290px;transform:scale(.92);width:108%;margin-left:-4%}.orbit-one{width:300px;height:180px}.orbit-two{width:220px;height:280px}.course-visual-core{width:138px;height:138px}.course-visual-core span{margin-top:-66px}.course-float{padding:8px 11px;font-size:.81rem}.float-prompt{top:28px;left:0}.float-video{top:37px;right:0}.float-audio{bottom:29px;left:1%}.float-design{bottom:23px;right:0}.course-feature{padding:45px 0 35px}.course-catalog-grid{grid-template-columns:1fr;gap:14px}.course-catalog-card{grid-template-columns:1fr}.catalog-art{min-height:190px}.catalog-art::before{width:220px;height:220px}.catalog-art::after{width:145px;height:145px}.catalog-art>span{top:calc(50% - 61px)}.catalog-art strong{font-size:2.8rem}.catalog-card-body{padding:22px 20px 24px}.catalog-meta{align-items:flex-start}.course-catalog-security .catalog-card-body h3{font-size:1.22rem}.catalog-actions .btn{flex:1 1 100%;justify-content:center}.catalog-contact{padding:5px 0}.course-outcomes{padding-top:46px;padding-bottom:53px}.course-section-heading{margin-bottom:26px}.course-outcome-grid{gap:11px}.course-outcome{padding:17px 14px}.course-outcome h3{font-size:1rem;margin-top:12px}.course-outcome p{font-size:.84rem}.outcome-icon{width:40px;height:40px}.course-syllabus{padding-top:55px;padding-bottom:58px}.syllabus-grid{grid-template-columns:1fr;gap:12px}.syllabus-card,.syllabus-card-wide{grid-column:auto;padding:19px}.syllabus-automation-list{grid-template-columns:1fr}.security-notice{padding:15px;gap:10px}.pentest-next-step{align-items:stretch;flex-direction:column;padding:21px}.pentest-next-step .btn{width:100%;justify-content:center}.course-cta-banner{padding:43px 20px 38px;border-radius:22px}.course-cta-banner .btn{width:100%;padding-inline:12px}.cta-decoration{left:5%;top:5px}}
@media(max-width:390px){.catalog-meta{flex-direction:column}.catalog-actions .btn{font-size:.83rem;padding-inline:11px}}
@media(prefers-reduced-motion:reduce){.course-float{animation:none}}

.catalog-inquiry-note{display:block;margin-top:10px;color:var(--muted);font-size:.76rem}
.course-catalog-hero .course-hero-grid{min-height:460px;padding-top:55px;padding-bottom:58px}
.course-catalog-hero .course-visual-core strong{font-size:2.3rem;letter-spacing:-.04em}
.course-detail-page .course-hero-grid{min-height:590px}
.course-back-link{display:inline-block;margin-bottom:19px;color:#C7D0E9;font-size:.9rem;font-weight:600;text-decoration:none}
.course-back-link:hover{color:#fff;text-decoration:underline;text-underline-offset:4px}
.course-detail-page .course-hero h1{max-width:760px}
.course-detail-page .course-hero-actions .btn-ghost{color:#fff;border-color:rgba(255,255,255,.35)}
.course-detail-page .course-hero-actions .btn-ghost:hover{background:rgba(255,255,255,.1)}
.course-detail-page .course-section-heading{margin-bottom:39px}
.course-detail-page .course-syllabus{padding-top:76px}
.course-detail-creative .course-syllabus{background:radial-gradient(ellipse at 10% 0%,rgba(102,128,255,.08),transparent 35%),#fff}
.course-detail-creative .syllabus-card{border-top:3px solid #7189F4}
.course-detail-creative .syllabus-card:nth-child(3n+2){border-top-color:#53CBA8}
.course-detail-creative .syllabus-card:nth-child(3n){border-top-color:#F0BD57}
.course-detail-security .course-hero{background:radial-gradient(ellipse at 80% 15%,rgba(32,149,130,.28),transparent 36%),linear-gradient(125deg,#081B25 0%,#103443 58%,#1B5151 100%)}
.course-detail-security .course-kicker{border-color:rgba(88,224,183,.38);color:#A2F5DB}
.security-visual{height:390px;position:relative;display:grid;place-items:center;isolation:isolate}
.security-orbit{position:absolute;width:300px;height:300px;border:1px solid rgba(140,239,211,.26);border-radius:50%;box-shadow:0 0 0 28px rgba(140,239,211,.035),0 0 0 58px rgba(140,239,211,.025)}
.security-shield{width:178px;height:202px;clip-path:polygon(50% 0,94% 16%,88% 68%,50% 100%,12% 68%,6% 16%);display:flex;flex-direction:column;align-items:center;justify-content:center;background:linear-gradient(150deg,#1E756B,#123B4C 75%);border:1px solid rgba(255,255,255,.2);color:white;filter:drop-shadow(0 18px 28px rgba(0,0,0,.32))}
.security-shield>span{color:#9BF0D5;font-size:1.8rem}.security-shield strong{font:700 2.5rem/1 system-ui,sans-serif;letter-spacing:-.07em}.security-shield small{margin-top:8px;text-align:center;color:#C7E8E0;font:600 .59rem/1.4 system-ui,sans-serif;letter-spacing:.16em}
.security-node{position:absolute;padding:9px 13px;border:1px solid rgba(255,255,255,.2);border-radius:12px;background:rgba(15,54,66,.88);color:#D8FFF2;font:700 .68rem/1 system-ui,sans-serif;letter-spacing:.12em;box-shadow:0 12px 28px rgba(0,0,0,.2);animation:security-node-float 4s ease-in-out infinite}
.security-node-one{top:48px;left:5%;animation-delay:0s}.security-node-two{top:82px;right:0;animation-delay:-1s}.security-node-three{bottom:55px;right:7%;animation-delay:-2s}.security-node-four{bottom:48px;left:5%;animation-delay:-3s}
@keyframes security-node-float{0%,100%{transform:translateY(0)}50%{transform:translateY(-10px)}}
.course-detail-security .course-syllabus{background:linear-gradient(180deg,#F2F8F7,#E8F2F0)}
.course-detail-security .syllabus-card{border-top:3px solid #39A88E}
.course-detail-security .syllabus-card:nth-child(3n+2){border-top-color:#5289C8}
.course-detail-security .syllabus-card:nth-child(3n){border-top-color:#9AAE54}
.course-detail-security .security-notice{margin-bottom:30px}
.course-detail-security .course-cta-banner{background:radial-gradient(circle at 90% 8%,rgba(67,181,154,.3),transparent 29%),linear-gradient(125deg,#0A202B,#123F4B 65%,#1B5B58)}
.course-detail-page :target{scroll-margin-top:82px}
@media(max-width:620px){.course-catalog-hero .course-hero-grid{min-height:0;padding-top:45px;padding-bottom:25px}.course-catalog-hero .course-visual{height:240px}.course-detail-page .course-hero-grid{min-height:0}.course-back-link{margin-bottom:14px}.course-detail-page .course-hero-actions .btn{width:100%;justify-content:center}.security-visual{height:290px;transform:scale(.9);width:110%;margin-left:-5%}.security-orbit{width:250px;height:250px}.security-shield{width:150px;height:172px}.security-node-one{top:20px;left:0}.security-node-two{top:44px;right:0}.security-node-three{bottom:23px;right:2%}.security-node-four{bottom:20px;left:0}.course-detail-page .course-syllabus{padding-top:55px}}
@media(prefers-reduced-motion:reduce){.course-catalog-hero .course-float,.security-node{animation:none}}

/* Homepage */
.nav-links a.btn-primary{color:#fff}
.nav-links a.btn-primary:hover{color:#000;background:#fff}
.home-page{overflow:hidden}
.home-hero{position:relative;overflow:hidden;background:radial-gradient(ellipse at 85% 10%,rgba(88,224,183,.22),transparent 40%),linear-gradient(130deg,#0A1330 0%,#14215A 60%,#23307A 100%);color:#fff;padding:92px 0 96px}
.home-orb{position:absolute;border-radius:50%;filter:blur(60px);opacity:.55;pointer-events:none;animation:home-drift 14s ease-in-out infinite}
.home-orb-one{width:420px;height:420px;left:-120px;top:-120px;background:radial-gradient(circle,#3F67FF,transparent 70%)}
.home-orb-two{width:380px;height:380px;right:-100px;bottom:-140px;background:radial-gradient(circle,#58E0B7,transparent 70%);animation-delay:-6s}
@keyframes home-drift{0%,100%{transform:translate(0,0)}50%{transform:translate(30px,-24px)}}
.home-hero-grid{position:relative;display:grid;grid-template-columns:1.1fr .9fr;align-items:center;gap:48px}
.home-hero-copy{animation:home-rise .9s ease-out both}
.home-eyebrow{display:inline-block;padding:7px 14px;border:1px solid rgba(88,224,183,.35);border-radius:999px;background:rgba(88,224,183,.08);color:#A2F5DB;font-size:.9rem}
.home-hero h1{color:#fff;font-size:clamp(2.4rem,5.4vw,4.2rem);line-height:1.22;letter-spacing:-.03em;margin:22px 0 18px}
.grad-text{background:linear-gradient(95deg,#FFE08A,#85F2D1 55%,#B5AAFF,#FFE08A);background-size:200% auto;color:transparent;background-clip:text;-webkit-background-clip:text;animation:grad-shift 6s linear infinite}
@keyframes grad-shift{to{background-position:200% center}}
.home-hero-copy>p{max-width:600px;color:#C7D0E9;font-size:1.13rem;line-height:1.85}
.home-actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:28px}
.home-actions .btn{min-height:52px;box-shadow:0 12px 30px rgba(255,182,39,.25)}
.home-actions .btn:hover{transform:translateY(-2px)}
.home-trust{display:flex;flex-wrap:wrap;gap:10px 22px;list-style:none;margin-top:28px;color:#B4C1DC;font-size:.92rem}
.home-trust span{color:#58E0B7;font-weight:700}
.home-hero-visual{position:relative;height:380px;display:grid;place-items:center;animation:home-rise .9s .15s ease-out both}
.home-core{width:190px;height:190px;border-radius:50%;display:flex;flex-direction:column;align-items:center;justify-content:center;background:linear-gradient(145deg,#2B3F8F,#14215A);border:1px solid rgba(255,255,255,.22);box-shadow:0 0 0 14px rgba(255,255,255,.035),0 24px 70px rgba(0,0,0,.35);animation:home-pulse 4s ease-in-out infinite}
.home-core span{color:#FFE08A;font-size:1.4rem}
.home-core strong{font:700 2.1rem/1 system-ui,sans-serif;letter-spacing:-.04em;color:#fff;margin-top:6px}
.home-core small{font:600 .6rem/1.6 system-ui,sans-serif;letter-spacing:.2em;color:#B8C5E7}
@keyframes home-pulse{0%,100%{box-shadow:0 0 0 14px rgba(255,255,255,.035),0 24px 70px rgba(0,0,0,.35)}50%{box-shadow:0 0 0 30px rgba(88,224,183,.06),0 24px 70px rgba(0,0,0,.35)}}
.home-chip{position:absolute;padding:10px 16px;border:1px solid rgba(255,255,255,.2);border-radius:14px;background:rgba(24,37,82,.85);color:#EDF2FF;font-size:.92rem;font-weight:600;box-shadow:0 14px 38px rgba(0,0,0,.25);backdrop-filter:blur(10px);animation:course-float 5s ease-in-out infinite}
.chip-song{top:38px;left:2%;animation-delay:-.6s}.chip-image{top:20px;right:4%;animation-delay:-2s}.chip-video{bottom:58px;left:6%;animation-delay:-3.4s}.chip-secure{bottom:24px;right:0;animation-delay:-1.3s}
@keyframes home-rise{from{opacity:0;transform:translateY(22px)}to{opacity:1;transform:translateY(0)}}
.home-section{padding:88px 0;background:#fff}
.home-section-alt{background:linear-gradient(180deg,#F5F8FE,#EEF3FC)}
.home-heading{max-width:700px;margin:0 auto 42px;text-align:center}
.home-overline{display:inline-block;color:#4B62D8;text-transform:uppercase;letter-spacing:.12em;font-size:1rem;font-weight:700}
.home-heading h2,.home-cta h2{margin:8px 0 10px;font-size:clamp(1.8rem,3.6vw,2.6rem)}
.home-heading p{font-size:1.02rem}
.home-grid-2,.home-grid-3{display:grid;gap:22px}
.home-grid-2{grid-template-columns:repeat(2,1fr)}
.home-grid-3{grid-template-columns:repeat(3,1fr)}
.home-card,.home-tool{position:relative;display:flex;flex-direction:column;padding:32px 30px;border:1px solid #E3E8F2;border-radius:24px;background:#fff;color:inherit;box-shadow:0 14px 38px rgba(29,39,75,.07);transition:transform .25s,box-shadow .25s,border-color .25s;overflow:hidden}
.home-card::before,.home-tool::before{content:"";position:absolute;inset:0 0 auto 0;height:4px;background:linear-gradient(90deg,#3F67FF,#58E0B7)}
.home-card:hover,.home-tool:hover{transform:translateY(-6px);box-shadow:0 26px 52px rgba(29,39,75,.14);border-color:#C8D2EF}
.home-card:hover{background:#F3F6FF}
.home-card-security:hover{background:#EFFAF5}
.home-card:hover .home-card-cta,.home-tool:hover .home-card-cta{color:#2347D6;letter-spacing:.02em}
.home-card h3,.home-tool h3{font-size:1.4rem;color:#142343;margin:12px 0 8px;line-height:1.35}
.home-card p,.home-tool p{font-size:.96rem;line-height:1.75;color:#55637E}
.home-card-tag{display:inline-block;align-self:flex-start;padding:4px 12px;border-radius:999px;background:#E9EEFF;color:#2347D6;font:700 .7rem/1.6 system-ui,sans-serif;letter-spacing:.12em;transition:color .2s,background-color .2s,transform .2s,box-shadow .2s}
.home-card-security .home-card-tag{background:#DDF7ED;color:#078B69}
.home-card:hover .home-card-tag,.home-card:focus-visible .home-card-tag{background:#2347D6;color:#fff;transform:translateY(-2px) scale(1.04);box-shadow:0 5px 14px rgba(35,71,214,.22)}
.home-card-security:hover .home-card-tag,.home-card-security:focus-visible .home-card-tag{background:#078B69;color:#fff;box-shadow:0 5px 14px rgba(7,139,105,.24)}
.home-card-security::before{background:linear-gradient(90deg,#12B886,#2F5BFF)}
.home-card-cta{display:inline-flex;align-items:center;gap:6px;margin-top:auto;padding-top:18px;color:#3F5FC8;font-weight:700;transition:color .2s,letter-spacing .2s}
.home-tool-icon{display:grid;place-items:center;width:52px;height:52px;border-radius:16px;background:#EAF0FF;color:#3F67FF;font-size:1.4rem}
.home-tool:nth-child(2) .home-tool-icon{background:#DDF7ED;color:#078B69}
.home-tool:nth-child(3) .home-tool-icon{background:#FFF2D8;color:#B97400}
.home-cta{display:flex;align-items:center;justify-content:space-between;flex-wrap:wrap;gap:22px;padding:54px 46px;border-radius:28px;background:radial-gradient(circle at 90% 10%,rgba(88,224,183,.3),transparent 30%),linear-gradient(125deg,#0B1634,#1C2F6B 70%,#2B3C8A);color:#fff;box-shadow:0 22px 48px rgba(22,37,83,.18)}
.home-cta h2{color:#fff}.home-cta p{color:#C7D0E9;max-width:620px}
.home-cta .btn{min-height:52px}
.js-reveal .reveal{opacity:0;transform:translateY(26px);transition:opacity .7s ease,transform .7s ease}
.js-reveal .reveal.is-visible{opacity:1;transform:none}
.home-grid-2 .reveal:nth-child(2),.home-grid-3 .reveal:nth-child(2){transition-delay:.12s}
.home-grid-3 .reveal:nth-child(3){transition-delay:.24s}
@media(max-width:900px){.home-hero-grid{grid-template-columns:1fr;gap:16px}.home-hero-visual{height:320px;max-width:560px;width:100%;margin:0 auto}.home-grid-3{grid-template-columns:1fr 1fr}.home-tool:last-child{grid-column:span 2}}
@media(max-width:620px){.home-hero{padding:56px 0 60px}.home-hero-visual{height:260px}.home-core{width:150px;height:150px}.home-chip{font-size:.8rem;padding:7px 11px}.home-section{padding:60px 0}.home-grid-2,.home-grid-3{grid-template-columns:1fr}.home-tool:last-child{grid-column:auto}.home-card,.home-tool{padding:26px 22px}.home-cta{padding:36px 22px}.home-cta .btn{width:100%;justify-content:center}.home-actions .btn{width:100%;justify-content:center}}
@media(prefers-reduced-motion:reduce){.home-orb,.home-hero-copy,.home-hero-visual,.home-core,.home-chip,.grad-text{animation:none!important}.js-reveal .reveal{opacity:1;transform:none;transition:none}}

@media (max-width:900px){
  .hero-grid,.contact-grid{grid-template-columns:1fr}
  .grid-3,.steps{grid-template-columns:repeat(2,1fr)}
  .footer-grid{grid-template-columns:1fr 1fr}
  .mock{max-width:480px}
}
@media (max-width:720px){
  .menu-btn{display:grid;place-items:center}
  .nav-links{position:absolute;top:68px;left:0;right:0;background:var(--bg);border-bottom:1px solid var(--line);flex-direction:column;align-items:stretch;padding:12px 4%;display:none}
  .nav-links.open{display:flex}
  .grid-3,.grid-2,.steps,.footer-grid{grid-template-columns:1fr}
  .section{padding:52px 0}
  .cta{padding:36px 24px}
  .profile-card dl{grid-template-columns:1fr}
}
@media (prefers-reduced-motion:reduce){
  *{animation:none!important;transition:none!important;scroll-behavior:auto!important}
}