/* =========================================================
   Aliran Robotics & Training Centre (ARTC)
   Modern hybrid theme - dark animated hero + light corporate
   ========================================================= */

/* ---------- Design tokens ---------- */
:root{
  --navy-900:#060b1c;
  --navy-800:#0a1024;
  --navy-700:#0e1836;
  --navy-600:#152249;
  --blue:#2f6bff;
  --blue-600:#1e54e0;
  --cyan:#17d3e6;
  --cyan-glow:rgba(23,211,230,.35);
  --ink:#0f1729;
  --slate:#475069;
  --muted:#6b7690;
  --line:#e6eaf2;
  --bg:#ffffff;
  --bg-soft:#f4f7fc;
  --bg-soft2:#eef3fb;
  --white:#ffffff;
  --radius:16px;
  --radius-lg:24px;
  --shadow-sm:0 4px 16px rgba(16,23,41,.06);
  --shadow:0 14px 40px rgba(16,23,41,.10);
  --shadow-lg:0 30px 70px rgba(11,18,48,.18);
  --grad:linear-gradient(120deg,var(--blue),var(--cyan));
  --grad-soft:linear-gradient(120deg,rgba(47,107,255,.12),rgba(23,211,230,.12));
  --maxw:1200px;
  --ease:cubic-bezier(.22,.61,.36,1);
  --header-h:76px;
  font-family:'Inter',system-ui,-apple-system,Segoe UI,Roboto,Arial,sans-serif;
}

/* ---------- Reset ---------- */
*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{
  margin:0;background:var(--bg);color:var(--ink);
  font-family:'Inter',system-ui,-apple-system,Segoe UI,Roboto,Arial,sans-serif;
  font-size:16px;line-height:1.65;-webkit-font-smoothing:antialiased;overflow-x:hidden;
}
img{max-width:100%;display:block;height:auto}
a{color:inherit;text-decoration:none}
ul{margin:0;padding:0;list-style:none}
h1,h2,h3,h4,h5{font-family:'Space Grotesk','Inter',sans-serif;line-height:1.15;margin:0 0 .5em;font-weight:700;letter-spacing:-.02em;color:var(--ink)}
h1{font-size:clamp(2.1rem,5vw,3.6rem)}
h2{font-size:clamp(1.7rem,3.6vw,2.6rem)}
h3{font-size:clamp(1.2rem,2vw,1.5rem)}
p{margin:0 0 1rem}
:focus-visible{outline:3px solid var(--cyan);outline-offset:2px}

/* ---------- Layout ---------- */
.container{width:100%;max-width:var(--maxw);margin:0 auto;padding:0 24px}
.section{padding:96px 0}
.section--tight{padding:64px 0}
.section--soft{background:var(--bg-soft)}
.section--navy{background:var(--navy-800);color:#dce4f5}
.section--navy h2,.section--navy h3{color:#fff}
.grid{display:grid;gap:28px}
.center{text-align:center}
.eyebrow{display:inline-block;font-family:'Space Grotesk',sans-serif;font-weight:600;font-size:.8rem;letter-spacing:.18em;text-transform:uppercase;color:var(--blue);margin-bottom:14px}
.section--navy .eyebrow{color:var(--cyan)}
.lead{font-size:1.12rem;color:var(--slate);max-width:640px}
.center .lead{margin-inline:auto}
.section--navy .lead{color:#aab6d4}
.mt-0{margin-top:0}.mb-0{margin-bottom:0}

/* ---------- Buttons ---------- */
.btn{
  display:inline-flex;align-items:center;gap:.55em;justify-content:center;
  font-family:'Space Grotesk',sans-serif;font-weight:600;font-size:.98rem;
  padding:14px 28px;border-radius:999px;border:2px solid transparent;cursor:pointer;
  transition:transform .25s var(--ease),box-shadow .25s var(--ease),background .25s,color .25s;
  will-change:transform;line-height:1;
}
.btn svg{width:18px;height:18px}
.btn--primary{background:var(--grad);color:#fff;box-shadow:0 10px 26px rgba(47,107,255,.32)}
.btn--primary:hover{transform:translateY(-3px);box-shadow:0 16px 34px rgba(47,107,255,.42)}
.btn--ghost{background:transparent;border-color:rgba(255,255,255,.35);color:#fff}
.btn--ghost:hover{border-color:var(--cyan);color:var(--cyan);transform:translateY(-3px)}
.btn--dark{background:var(--ink);color:#fff}
.btn--dark:hover{background:var(--navy-700);transform:translateY(-3px)}
.btn--light{background:#fff;color:var(--ink);box-shadow:var(--shadow-sm)}
.btn--light:hover{transform:translateY(-3px);box-shadow:var(--shadow)}
.btn--sm{padding:10px 20px;font-size:.9rem}

/* ---------- Header ---------- */
.site-header{
  position:fixed;top:0;left:0;right:0;z-index:100;height:var(--header-h);
  display:flex;align-items:center;
  transition:background .3s,box-shadow .3s,backdrop-filter .3s;
}
.site-header.scrolled{background:rgba(255,255,255,.92);backdrop-filter:blur(14px);box-shadow:0 2px 20px rgba(16,23,41,.08)}
.nav{display:flex;align-items:center;justify-content:space-between;width:100%;max-width:var(--maxw);margin:0 auto;padding:0 24px}
.nav__logo{display:flex;align-items:center;gap:10px;z-index:2}
.nav__logo img{height:44px;width:auto}
.nav__links{display:flex;align-items:center;gap:6px}
.nav__links a{
  font-weight:500;font-size:.95rem;padding:10px 14px;border-radius:10px;color:var(--ink);
  transition:color .2s,background .2s;position:relative;
}
.site-header:not(.scrolled) .nav__links > li > a,
.site-header:not(.scrolled) .nav__logo .brand-text{color:#fff}
.site-header:not(.scrolled).transparent-dark .nav__links > li > a{color:#fff}
.nav__links a:hover{color:var(--blue)}
.site-header:not(.scrolled) .nav__links a:hover{color:var(--cyan)}
.brand-text{font-family:'Space Grotesk',sans-serif;font-weight:700;font-size:1.05rem;letter-spacing:-.02em;line-height:1.05}
.brand-text small{display:block;font-size:.62rem;font-weight:500;letter-spacing:.12em;text-transform:uppercase;color:var(--muted)}
.site-header:not(.scrolled) .brand-text small{color:rgba(255,255,255,.7)}
.nav__cta{display:flex;align-items:center;gap:12px}
/* dropdown */
.has-dropdown{position:relative}
.dropdown{
  position:absolute;top:calc(100% + 10px);left:0;min-width:288px;background:#fff;border-radius:14px;
  box-shadow:var(--shadow-lg);padding:10px;opacity:0;visibility:hidden;transform:translateY(10px);
  transition:.25s var(--ease);border:1px solid var(--line);
}
.has-dropdown:hover .dropdown{opacity:1;visibility:visible;transform:translateY(0)}
.dropdown a{display:block;padding:11px 14px;border-radius:9px;font-size:.9rem;color:var(--ink)!important;font-weight:500}
.dropdown a:hover{background:var(--bg-soft);color:var(--blue)!important}
.nav__toggle{display:none;flex-direction:column;gap:5px;background:none;border:0;cursor:pointer;padding:8px;z-index:2}
.nav__toggle span{width:26px;height:2px;background:var(--ink);border-radius:2px;transition:.3s}
.site-header:not(.scrolled) .nav__toggle span{background:#fff}
.nav__toggle.active span:nth-child(1){transform:translateY(7px) rotate(45deg)}
.nav__toggle.active span:nth-child(2){opacity:0}
.nav__toggle.active span:nth-child(3){transform:translateY(-7px) rotate(-45deg)}

/* ---------- Hero ---------- */
.hero{
  position:relative;min-height:100vh;display:flex;align-items:center;
  background:radial-gradient(1200px 700px at 75% -10%,#16234d 0%,var(--navy-800) 45%,var(--navy-900) 100%);
  color:#fff;overflow:hidden;padding-top:var(--header-h);
}
#hero-canvas{position:absolute;inset:0;width:100%;height:100%;z-index:1}
.hero__glow{position:absolute;border-radius:50%;filter:blur(90px);opacity:.5;z-index:1}
.hero__glow--1{width:480px;height:480px;background:rgba(47,107,255,.4);top:-120px;right:-80px}
.hero__glow--2{width:420px;height:420px;background:rgba(23,211,230,.28);bottom:-160px;left:-120px}
.hero__inner{position:relative;z-index:3;display:grid;grid-template-columns:1.05fr .95fr;gap:48px;align-items:center;width:100%}
.hero__badge{
  display:inline-flex;align-items:center;gap:9px;padding:8px 16px;border-radius:999px;
  background:rgba(255,255,255,.08);border:1px solid rgba(255,255,255,.16);
  font-size:.82rem;font-weight:500;color:#cfe0ff;margin-bottom:22px;backdrop-filter:blur(6px);
}
.hero__badge .dot{width:8px;height:8px;border-radius:50%;background:var(--cyan);box-shadow:0 0 12px var(--cyan)}
.hero h1{color:#fff;margin-bottom:18px}
.hero h1 .accent{background:var(--grad);-webkit-background-clip:text;background-clip:text;color:transparent}
.hero__sub{font-size:1.14rem;color:#aeb9d8;max-width:520px;margin-bottom:32px}
.hero__actions{display:flex;gap:14px;flex-wrap:wrap;margin-bottom:38px}
.hero__stats{display:flex;gap:34px;flex-wrap:wrap}
.hero__stat b{font-family:'Space Grotesk',sans-serif;font-size:1.9rem;display:block;line-height:1;color:#fff}
.hero__stat span{font-size:.82rem;color:#8f9cc0;letter-spacing:.03em}
.hero__visual{position:relative;display:flex;justify-content:center;align-items:center;min-height:420px}
.hero-orbit{position:relative;width:min(440px,90%);aspect-ratio:1}
.hero-orbit__ring{position:absolute;inset:0;border-radius:50%;border:1px solid rgba(120,150,255,.18)}
.hero-orbit__ring.r2{inset:14%}
.hero-orbit__ring.r3{inset:28%}
.hero-orbit__core{
  position:absolute;inset:35%;border-radius:50%;
  background:radial-gradient(circle at 35% 30%,#2f6bff,#0b1230);
  box-shadow:0 0 60px rgba(47,107,255,.5),inset 0 0 40px rgba(23,211,230,.25);
  display:grid;place-items:center;
}
.hero-orbit__core svg{width:46%;height:46%;opacity:.95}
.hero-chip{
  position:absolute;background:rgba(11,18,48,.72);border:1px solid rgba(120,150,255,.25);
  backdrop-filter:blur(8px);border-radius:12px;padding:10px 14px;display:flex;align-items:center;gap:9px;
  font-size:.8rem;color:#dbe6ff;box-shadow:var(--shadow);
}
.hero-chip svg{width:20px;height:20px;color:var(--cyan)}
.hero-chip--1{top:6%;left:-4%;animation:float 6s var(--ease) infinite}
.hero-chip--2{bottom:14%;right:-6%;animation:float 7s var(--ease) infinite .8s}
.hero-chip--3{bottom:-2%;left:16%;animation:float 5.5s var(--ease) infinite .4s}
@keyframes float{0%,100%{transform:translateY(0)}50%{transform:translateY(-14px)}}
.hero__scroll{position:absolute;bottom:26px;left:50%;transform:translateX(-50%);z-index:3;color:#8f9cc0;font-size:.75rem;letter-spacing:.2em;text-transform:uppercase;display:flex;flex-direction:column;align-items:center;gap:8px}
.hero__scroll .mouse{width:24px;height:38px;border:2px solid rgba(255,255,255,.4);border-radius:14px;position:relative}
.hero__scroll .mouse::after{content:"";position:absolute;top:7px;left:50%;transform:translateX(-50%);width:4px;height:8px;border-radius:2px;background:var(--cyan);animation:wheel 1.6s infinite}
@keyframes wheel{0%{opacity:1;top:7px}100%{opacity:0;top:18px}}

/* ---------- Page hero (interior) ---------- */
.page-hero{
  position:relative;padding:calc(var(--header-h) + 72px) 0 72px;color:#fff;overflow:hidden;
  background:radial-gradient(900px 500px at 80% -20%,#16234d,var(--navy-800) 55%,var(--navy-900));
}
.page-hero #hero-canvas{opacity:.6}
.page-hero__inner{position:relative;z-index:3}
.page-hero h1{color:#fff;margin-bottom:12px}
.breadcrumb{display:flex;gap:8px;align-items:center;font-size:.85rem;color:#9fb0d8}
.breadcrumb a:hover{color:var(--cyan)}
.breadcrumb span{opacity:.5}

/* ---------- Reveal animation ---------- */
[data-reveal]{opacity:0;transform:translateY(34px);transition:opacity .7s var(--ease),transform .7s var(--ease)}
[data-reveal].in{opacity:1;transform:none}
[data-reveal-delay="1"]{transition-delay:.1s}
[data-reveal-delay="2"]{transition-delay:.2s}
[data-reveal-delay="3"]{transition-delay:.3s}
[data-reveal-delay="4"]{transition-delay:.4s}
@media (prefers-reduced-motion:reduce){
  [data-reveal]{opacity:1;transform:none;transition:none}
  .hero-chip{animation:none}
  *{scroll-behavior:auto}
}

/* ---------- Cards ---------- */
.card{background:#fff;border:1px solid var(--line);border-radius:var(--radius);box-shadow:var(--shadow-sm);transition:transform .3s var(--ease),box-shadow .3s var(--ease),border-color .3s;overflow:hidden}
.card:hover{transform:translateY(-8px);box-shadow:var(--shadow);border-color:rgba(47,107,255,.25)}

/* feature cards */
.feature-grid{grid-template-columns:repeat(3,1fr)}
.feature{padding:34px 28px;background:#fff;border:1px solid var(--line);border-radius:var(--radius);transition:transform .3s var(--ease),box-shadow .3s var(--ease)}
.feature:hover{transform:translateY(-8px);box-shadow:var(--shadow)}
.feature__icon{width:56px;height:56px;border-radius:14px;display:grid;place-items:center;background:var(--grad-soft);color:var(--blue);margin-bottom:18px}
.feature__icon svg{width:28px;height:28px}
.feature h3{margin-bottom:8px}
.feature p{color:var(--slate);margin:0;font-size:.96rem}

/* ---------- Course cards ---------- */
.course-grid{grid-template-columns:repeat(3,1fr)}
.course-card{display:flex;flex-direction:column;background:#fff;border:1px solid var(--line);border-radius:var(--radius);overflow:hidden;transition:transform .3s var(--ease),box-shadow .3s var(--ease)}
.course-card:hover{transform:translateY(-8px);box-shadow:var(--shadow)}
.course-card__media{position:relative;aspect-ratio:16/10;overflow:hidden}
.course-card__media img{width:100%;height:100%;object-fit:cover;transition:transform .6s var(--ease)}
.course-card:hover .course-card__media img{transform:scale(1.07)}
.course-card__tag{position:absolute;top:14px;left:14px;background:rgba(6,11,28,.82);color:#fff;font-size:.72rem;font-weight:600;letter-spacing:.04em;padding:6px 12px;border-radius:999px;backdrop-filter:blur(4px)}
.course-card__body{padding:24px;display:flex;flex-direction:column;flex:1}
.course-card__body h3{font-size:1.12rem;margin-bottom:10px}
.course-card__body p{color:var(--slate);font-size:.93rem;flex:1}
.course-meta{display:flex;gap:14px;flex-wrap:wrap;margin:8px 0 18px;font-size:.8rem;color:var(--muted)}
.course-meta span{display:inline-flex;align-items:center;gap:5px}
.course-meta svg{width:15px;height:15px;color:var(--blue)}
.course-card__link{font-family:'Space Grotesk',sans-serif;font-weight:600;color:var(--blue);display:inline-flex;align-items:center;gap:7px;transition:gap .25s}
.course-card__link:hover{gap:12px}
.course-card__link svg{width:16px;height:16px}

/* ---------- Stats band ---------- */
.stats-band{grid-template-columns:repeat(4,1fr);gap:24px}
.stat{text-align:center;padding:22px}
.stat b{font-family:'Space Grotesk',sans-serif;font-size:clamp(2rem,4vw,2.9rem);background:var(--grad);-webkit-background-clip:text;background-clip:text;color:transparent;display:block;line-height:1}
.stat span{color:#aab6d4;font-size:.9rem;margin-top:8px;display:block}
.section--navy .stat span{color:#9aa7c8}

/* ---------- About split ---------- */
.split{display:grid;grid-template-columns:1fr 1fr;gap:56px;align-items:center}
.split__media{position:relative}
.split__media img{border-radius:var(--radius-lg);box-shadow:var(--shadow);width:100%;object-fit:cover}
.split__media .badge-float{position:absolute;bottom:-24px;left:-24px;background:#fff;border-radius:16px;padding:18px 22px;box-shadow:var(--shadow-lg);display:flex;align-items:center;gap:14px;max-width:230px}
.split__media .badge-float b{font-family:'Space Grotesk',sans-serif;font-size:1.7rem;color:var(--blue);line-height:1}
.split__media .badge-float span{font-size:.78rem;color:var(--muted)}
.check-list{margin:22px 0 30px}
.check-list li{display:flex;gap:12px;align-items:flex-start;padding:8px 0;color:var(--slate)}
.check-list li svg{width:22px;height:22px;flex:0 0 22px;color:var(--cyan);margin-top:2px}
.section--navy .check-list li{color:#c3cee8}

/* ---------- Marquee (partners) ---------- */
.marquee{overflow:hidden;-webkit-mask-image:linear-gradient(90deg,transparent,#000 8%,#000 92%,transparent);mask-image:linear-gradient(90deg,transparent,#000 8%,#000 92%,transparent)}
.marquee__track{display:flex;gap:64px;width:max-content;animation:scrollx 28s linear infinite;align-items:center}
.marquee:hover .marquee__track{animation-play-state:paused}
.marquee img{height:52px;width:auto;filter:grayscale(1);opacity:.6;transition:.3s}
.marquee img:hover{filter:none;opacity:1}
@keyframes scrollx{to{transform:translateX(-50%)}}

/* ---------- Why choose (steps) ---------- */
.why-grid{grid-template-columns:repeat(3,1fr)}
.why{padding:32px 28px;border-radius:var(--radius);background:#fff;border:1px solid var(--line);position:relative;overflow:hidden;transition:transform .3s var(--ease),box-shadow .3s var(--ease)}
.why:hover{transform:translateY(-8px);box-shadow:var(--shadow)}
.why__num{font-family:'Space Grotesk',sans-serif;font-size:3.4rem;font-weight:700;line-height:1;color:transparent;-webkit-text-stroke:1.5px rgba(47,107,255,.28);margin-bottom:14px}
.why h3{margin-bottom:8px}
.why p{color:var(--slate);margin:0;font-size:.95rem}

/* ---------- CTA band ---------- */
.cta-band{position:relative;overflow:hidden;background:linear-gradient(120deg,var(--navy-700),var(--navy-800));color:#fff;border-radius:var(--radius-lg);padding:60px;text-align:center}
.cta-band::before{content:"";position:absolute;inset:0;background:radial-gradient(600px 300px at 20% 0%,rgba(47,107,255,.35),transparent),radial-gradient(500px 300px at 90% 100%,rgba(23,211,230,.28),transparent)}
.cta-band > *{position:relative;z-index:2}
.cta-band h2{color:#fff}
.cta-band p{color:#b9c4e2;max-width:560px;margin:0 auto 26px}
.cta-actions{display:flex;gap:14px;justify-content:center;flex-wrap:wrap}

/* ---------- Trainers ---------- */
.trainer-grid{grid-template-columns:repeat(2,1fr);gap:32px;max-width:840px;margin:0 auto}
.trainer-card{background:#fff;border:1px solid var(--line);border-radius:var(--radius-lg);overflow:hidden;transition:transform .3s var(--ease),box-shadow .3s var(--ease)}
.trainer-card:hover{transform:translateY(-8px);box-shadow:var(--shadow)}
.trainer-card__media{aspect-ratio:1/1;overflow:hidden;background:var(--bg-soft)}
.trainer-card__media img{width:100%;height:100%;object-fit:cover;transition:transform .6s var(--ease)}
.trainer-card:hover .trainer-card__media img{transform:scale(1.05)}
.trainer-card__body{padding:24px;text-align:center}
.trainer-card__body h3{margin-bottom:4px}
.trainer-card__role{color:var(--blue);font-size:.85rem;font-weight:600;letter-spacing:.05em;text-transform:uppercase}

/* trainer profile */
.profile{display:grid;grid-template-columns:.9fr 1.6fr;gap:48px;align-items:start}
.profile__card{background:#fff;border:1px solid var(--line);border-radius:var(--radius-lg);padding:24px;box-shadow:var(--shadow-sm);position:sticky;top:100px}
.profile__card img{border-radius:14px;margin-bottom:18px;width:100%;aspect-ratio:1/1;object-fit:cover}
.profile__meta{font-size:.9rem;color:var(--slate)}
.profile__meta div{padding:10px 0;border-bottom:1px solid var(--line)}
.profile__meta b{display:block;font-family:'Space Grotesk',sans-serif;color:var(--ink);font-size:.78rem;text-transform:uppercase;letter-spacing:.06em;margin-bottom:2px}
.exp-item{padding:22px 0;border-bottom:1px solid var(--line)}
.exp-item:last-child{border-bottom:0}
.exp-item h4{font-size:1.05rem;margin-bottom:4px}
.exp-item .exp-when{font-size:.82rem;color:var(--blue);font-weight:600;margin-bottom:8px}
.exp-item p{color:var(--slate);font-size:.94rem;margin:0}
.pill-row{display:flex;flex-wrap:wrap;gap:10px;margin-top:16px}
.pill{background:var(--bg-soft);border:1px solid var(--line);border-radius:999px;padding:8px 16px;font-size:.85rem;color:var(--slate)}
.cred-box{background:var(--bg-soft);border:1px solid var(--line);border-radius:14px;padding:20px 24px;margin-top:18px}
.cred-box b{font-family:'Space Grotesk',sans-serif}

/* ---------- Course detail ---------- */
.course-detail{display:grid;grid-template-columns:1.7fr .9fr;gap:48px;align-items:start}
.info-card{background:#fff;border:1px solid var(--line);border-radius:var(--radius-lg);padding:28px;box-shadow:var(--shadow-sm);position:sticky;top:100px}
.info-card h3{font-size:1.15rem}
.info-row{display:flex;justify-content:space-between;gap:16px;padding:12px 0;border-bottom:1px solid var(--line);font-size:.92rem}
.info-row:last-of-type{border-bottom:0}
.info-row span{color:var(--muted)}
.info-row b{font-family:'Space Grotesk',sans-serif;text-align:right;color:var(--ink)}
.price-tag{background:var(--grad-soft);border:1px solid rgba(47,107,255,.2);border-radius:12px;padding:16px 18px;margin:16px 0;text-align:center}
.price-tag b{font-family:'Space Grotesk',sans-serif;font-size:1.5rem;color:var(--blue);display:block}
.price-tag small{color:var(--muted)}
.day-block{background:#fff;border:1px solid var(--line);border-left:3px solid var(--blue);border-radius:12px;padding:20px 24px;margin-bottom:16px}
.day-block h4{font-size:1rem;color:var(--blue);margin-bottom:10px;font-family:'Space Grotesk',sans-serif}
.day-block ul li{padding:5px 0 5px 22px;position:relative;color:var(--slate);font-size:.94rem}
.day-block ul li::before{content:"";position:absolute;left:0;top:12px;width:7px;height:7px;border-radius:50%;background:var(--cyan)}
.obj-grid{grid-template-columns:repeat(2,1fr);gap:22px}
.obj{display:flex;gap:16px;align-items:flex-start}
.obj__num{flex:0 0 42px;height:42px;border-radius:12px;display:grid;place-items:center;background:var(--grad);color:#fff;font-family:'Space Grotesk',sans-serif;font-weight:700}
.obj h4{font-size:1rem;margin-bottom:4px}
.obj p{font-size:.9rem;color:var(--slate);margin:0}
.audience-tags{display:flex;flex-wrap:wrap;gap:10px}
.audience-tags .pill{background:#fff}

/* ---------- Forms ---------- */
.form-card{background:#fff;border:1px solid var(--line);border-radius:var(--radius-lg);padding:36px;box-shadow:var(--shadow)}
.form-grid{display:grid;grid-template-columns:1fr 1fr;gap:18px}
.field{display:flex;flex-direction:column;gap:7px;margin-bottom:16px}
.field.full{grid-column:1/-1}
.field label{font-size:.85rem;font-weight:600;color:var(--ink)}
.field label .req{color:#e0413c}
.field input,.field select,.field textarea{
  padding:13px 15px;border:1.5px solid var(--line);border-radius:11px;font:inherit;font-size:.95rem;color:var(--ink);
  background:#fff;transition:border-color .2s,box-shadow .2s;width:100%;
}
.field textarea{resize:vertical;min-height:120px}
.field input:focus,.field select:focus,.field textarea:focus{outline:none;border-color:var(--blue);box-shadow:0 0 0 4px rgba(47,107,255,.12)}
.form-note{font-size:.82rem;color:var(--muted);margin-top:10px}
.form-success{display:none;background:#e9f9ef;border:1px solid #b7ecc9;color:#1a7a44;padding:14px 18px;border-radius:12px;margin-bottom:16px;font-size:.92rem}
.form-success.show{display:block}

/* contact info tiles */
.contact-grid{grid-template-columns:1.1fr .9fr;gap:40px;align-items:start}
.info-tile{display:flex;gap:16px;align-items:flex-start;padding:20px;border:1px solid var(--line);border-radius:14px;background:#fff;margin-bottom:16px;transition:transform .3s var(--ease),box-shadow .3s var(--ease)}
.info-tile:hover{transform:translateY(-4px);box-shadow:var(--shadow-sm)}
.info-tile__icon{flex:0 0 46px;height:46px;border-radius:12px;display:grid;place-items:center;background:var(--grad-soft);color:var(--blue)}
.info-tile__icon svg{width:22px;height:22px}
.info-tile h4{margin:0 0 3px;font-size:1rem}
.info-tile p,.info-tile a{margin:0;color:var(--slate);font-size:.93rem}
.info-tile a:hover{color:var(--blue)}
.map-embed{border-radius:var(--radius-lg);overflow:hidden;border:1px solid var(--line);box-shadow:var(--shadow-sm);margin-top:8px}
.map-embed iframe{width:100%;height:320px;border:0;display:block}

/* ---------- Blog ---------- */
.blog-grid{grid-template-columns:repeat(3,1fr);gap:28px}
.post-card{display:flex;flex-direction:column;background:#fff;border:1px solid var(--line);border-radius:var(--radius);overflow:hidden;transition:transform .3s var(--ease),box-shadow .3s var(--ease)}
.post-card:hover{transform:translateY(-8px);box-shadow:var(--shadow)}
.post-card__media{aspect-ratio:16/9;overflow:hidden}
.post-card__media img{width:100%;height:100%;object-fit:cover;transition:transform .6s var(--ease)}
.post-card:hover .post-card__media img{transform:scale(1.06)}
.post-card__body{padding:22px;flex:1;display:flex;flex-direction:column}
.post-card__cat{font-size:.75rem;font-weight:600;color:var(--blue);letter-spacing:.05em;text-transform:uppercase;margin-bottom:8px}
.post-card__body h3{font-size:1.08rem;margin-bottom:8px}
.post-card__body p{color:var(--slate);font-size:.9rem;flex:1}
.post-card__meta{font-size:.8rem;color:var(--muted);margin-top:14px;display:flex;gap:12px}
.newsletter{background:linear-gradient(120deg,var(--navy-700),var(--navy-800));border-radius:var(--radius-lg);padding:44px;color:#fff;display:flex;justify-content:space-between;gap:30px;align-items:center;flex-wrap:wrap}
.newsletter form{display:flex;gap:12px;flex:1;min-width:280px;max-width:440px}
.newsletter input{flex:1;padding:14px 16px;border-radius:11px;border:1px solid rgba(255,255,255,.2);background:rgba(255,255,255,.08);color:#fff}
.newsletter input::placeholder{color:#9fb0d8}

/* ---------- Footer ---------- */
.site-footer{background:var(--navy-900);color:#9aa7c8;padding:72px 0 0}
.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1.2fr;gap:40px;padding-bottom:48px}
.site-footer h4{color:#fff;font-size:.95rem;letter-spacing:.04em;margin-bottom:18px;text-transform:uppercase}
.site-footer a{color:#9aa7c8;font-size:.92rem;transition:color .2s}
.site-footer a:hover{color:var(--cyan)}
.footer-brand img{height:46px;margin-bottom:16px}
.footer-brand p{font-size:.92rem;color:#8593b8;max-width:340px}
.footer-links li{margin-bottom:11px}
.footer-badge{background:rgba(255,255,255,.05);border:1px solid rgba(255,255,255,.1);border-radius:12px;padding:14px 16px;font-size:.82rem;color:#b9c4e2;margin-top:14px}
.footer-badge b{color:#fff;font-family:'Space Grotesk',sans-serif}
.footer-hours div{display:flex;justify-content:space-between;font-size:.86rem;padding:4px 0;border-bottom:1px solid rgba(255,255,255,.06)}
.social-row{display:flex;gap:10px;margin-top:16px}
.social-row a{width:38px;height:38px;border-radius:10px;display:grid;place-items:center;background:rgba(255,255,255,.06);border:1px solid rgba(255,255,255,.1);transition:.25s}
.social-row a:hover{background:var(--grad);border-color:transparent;transform:translateY(-3px)}
.social-row svg{width:18px;height:18px;color:#fff}
.footer-bottom{border-top:1px solid rgba(255,255,255,.08);padding:22px 0;display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;font-size:.85rem;color:#7a89b0}
.footer-bottom a{color:var(--cyan)}

/* ---------- WhatsApp float ---------- */
.wa-float{position:fixed;bottom:24px;right:24px;z-index:90;width:58px;height:58px;border-radius:50%;background:#25d366;display:grid;place-items:center;box-shadow:0 12px 30px rgba(37,211,102,.4);transition:transform .3s var(--ease)}
.wa-float:hover{transform:scale(1.08)}
.wa-float svg{width:30px;height:30px;color:#fff}

/* ---------- Section heading helper ---------- */
.sec-head{max-width:680px;margin:0 auto 52px;text-align:center}
.sec-head.left{margin-inline:0;text-align:left}

/* ---------- Responsive ---------- */
@media (max-width:1024px){
  .hero__inner{grid-template-columns:1fr;gap:36px}
  .hero__visual{min-height:340px;order:-1}
  .feature-grid,.course-grid,.why-grid,.blog-grid{grid-template-columns:repeat(2,1fr)}
  .profile,.course-detail,.contact-grid{grid-template-columns:1fr}
  .profile__card,.info-card{position:static}
  .stats-band{grid-template-columns:repeat(2,1fr)}
  .footer-grid{grid-template-columns:1fr 1fr}
}
@media (max-width:768px){
  .section{padding:68px 0}
  .nav__toggle{display:flex}
  .nav__links{
    position:fixed;inset:0 0 0 auto;width:min(320px,86vw);height:100vh;background:#fff;
    flex-direction:column;align-items:stretch;gap:2px;padding:96px 20px 30px;
    transform:translateX(105%);transition:transform .35s var(--ease);box-shadow:var(--shadow-lg);overflow-y:auto;
  }
  .nav__links.open{transform:translateX(0)}
  .nav__links a{color:var(--ink)!important;padding:13px 14px;font-size:1rem}
  .dropdown{position:static;opacity:1;visibility:visible;transform:none;box-shadow:none;border:0;padding:0 0 0 12px;min-width:0}
  .has-dropdown > a::after{content:" ▾";opacity:.5}
  .nav__cta .btn:not(.nav__toggle){display:none}
  .obj-grid,.form-grid{grid-template-columns:1fr}
  .split{gap:40px}
  .split__media .badge-float{left:0}
  .cta-band{padding:40px 24px}
  .newsletter{padding:32px 24px}
}
@media (max-width:560px){
  .feature-grid,.course-grid,.why-grid,.blog-grid,.trainer-grid,.stats-band{grid-template-columns:1fr}
  .footer-grid{grid-template-columns:1fr}
  .hero__stats{gap:24px}
  .section{padding:56px 0}
}

/* ============================================================
   v2 - logo contrast, robotics animations, 3D tilt
   ============================================================ */

/* ---- Logo pill on transparent (dark hero) header ---- */
.nav__logo{transition:background .3s var(--ease),padding .3s var(--ease);border-radius:14px;padding:4px}
.site-header:not(.scrolled) .nav__logo{background:rgba(255,255,255,.94);padding:6px 14px;box-shadow:0 8px 22px rgba(6,11,28,.28)}

/* ---- 3D tilt wrapper ---- */
[data-tilt]{transition:transform .25s var(--ease);transform-style:preserve-3d;will-change:transform}

/* ============ Animated cobot arm ============ */
.robo-stage{position:relative;display:grid;place-items:center;aspect-ratio:1/1;width:100%;max-width:460px;margin:0 auto;
  border-radius:28px;background:radial-gradient(120% 120% at 50% 15%,#eef4ff,#dde8fb);border:1px solid var(--line);box-shadow:var(--shadow);overflow:hidden}
.robo-stage::after{content:"";position:absolute;width:150px;height:150px;border-radius:50%;background:radial-gradient(circle,rgba(23,211,230,.35),transparent 70%);top:8%;right:8%;filter:blur(6px)}
.robo-grid{position:absolute;inset:0;background-image:linear-gradient(rgba(47,107,255,.10) 1px,transparent 1px),linear-gradient(90deg,rgba(47,107,255,.10) 1px,transparent 1px);background-size:30px 30px;-webkit-mask-image:radial-gradient(72% 72% at 50% 45%,#000,transparent);mask-image:radial-gradient(72% 72% at 50% 45%,#000,transparent)}
.robo-chip{position:absolute;background:rgba(255,255,255,.92);border:1px solid var(--line);border-radius:12px;padding:8px 12px;font-size:.76rem;font-weight:600;color:var(--ink);box-shadow:var(--shadow-sm);display:flex;align-items:center;gap:7px;z-index:3}
.robo-chip .d{width:8px;height:8px;border-radius:50%;background:var(--cyan);box-shadow:0 0 10px var(--cyan)}
.robo-chip.a{top:12%;left:8%;animation:float 6s var(--ease) infinite}
.robo-chip.b{bottom:14%;right:6%;animation:float 7s var(--ease) infinite .6s}
.robo-arm{position:relative;width:84%;height:84%;z-index:2}
.ra-j1{transform-box:view-box;transform-origin:150px 250px;animation:raShoulder 5.6s ease-in-out infinite}
.ra-j2{transform-box:view-box;transform-origin:150px 150px;animation:raElbow 5.6s ease-in-out infinite}
.ra-j3{transform-box:view-box;transform-origin:150px 70px;animation:raWrist 4.6s ease-in-out infinite}
.ra-grip{transform-box:view-box;transform-origin:150px 62px;animation:raGrip 3s ease-in-out infinite}
.ra-cube{transform-box:view-box;transform-origin:150px 36px;animation:raCube 3s ease-in-out infinite}
.ra-glow{transform-box:fill-box;transform-origin:center;animation:raPulse 2.4s ease-in-out infinite}
@keyframes raShoulder{0%,100%{transform:rotate(-5deg)}50%{transform:rotate(6deg)}}
@keyframes raElbow{0%,100%{transform:rotate(5deg)}50%{transform:rotate(-13deg)}}
@keyframes raWrist{0%,100%{transform:rotate(-9deg)}50%{transform:rotate(9deg)}}
@keyframes raGrip{0%,100%{transform:rotate(0)}50%{transform:rotate(-5deg)}}
@keyframes raCube{0%,100%{transform:translateY(0)}50%{transform:translateY(-7px)}}
@keyframes raPulse{0%,100%{opacity:.5;transform:scale(.85)}50%{opacity:1;transform:scale(1.2)}}

/* ============ AMR navigation scene ============ */
.amr-band{position:relative;overflow:hidden}
.amr-stage{position:relative;border-radius:24px;overflow:hidden;box-shadow:var(--shadow);
  background:radial-gradient(120% 130% at 50% 0%,#16234d,#0a1024);display:block;width:100%}
.amr-svg{width:100%;height:auto;display:block}
.amr-track{stroke:rgba(120,160,255,.55);stroke-width:3;stroke-linecap:round;animation:amrTrack 1.05s linear infinite}
@keyframes amrTrack{to{stroke-dashoffset:-32}}
.amr-bot{transform-box:view-box;transform-origin:center;animation:amrBob 2.6s ease-in-out infinite}
@keyframes amrBob{0%,100%{transform:translateY(0)}50%{transform:translateY(-4px)}}
.amr-wheel{transform-box:fill-box;transform-origin:center;animation:amrWheel 1.05s linear infinite}
@keyframes amrWheel{to{transform:rotate(360deg)}}
.amr-lidar{transform-box:view-box;transform-origin:220px 92px;animation:amrScan 3.4s ease-in-out infinite}
@keyframes amrScan{0%,100%{transform:rotate(-30deg)}50%{transform:rotate(30deg)}}
.amr-way{animation:amrWay 1.8s ease-in-out infinite}
.amr-way:nth-child(2){animation-delay:.3s}.amr-way:nth-child(3){animation-delay:.6s}.amr-way:nth-child(4){animation-delay:.9s}
@keyframes amrWay{0%,100%{opacity:.2}50%{opacity:1}}

@media (prefers-reduced-motion:reduce){
  .ra-j1,.ra-j2,.ra-j3,.ra-grip,.ra-cube,.ra-glow,.amr-track,.amr-bot,.amr-wheel,.amr-lidar,.amr-way,.robo-chip{animation:none}
  [data-tilt]{transform:none!important}
}

/* ============================================================
   v3 - photo-rich components
   ============================================================ */
/* page hero with background photo */
.page-hero.has-img{background:none}
.page-hero.has-img .ph-bg{position:absolute;inset:0;z-index:0;background-size:cover;background-position:center}
.page-hero.has-img .ph-bg::after{content:"";position:absolute;inset:0;background:linear-gradient(120deg,rgba(6,11,28,.9),rgba(10,16,36,.72))}
.page-hero.has-img #hero-canvas{opacity:.5;z-index:1}
.page-hero.has-img .page-hero__inner{z-index:3}

/* hero photo card (home) */
.hero-photo{position:relative;border-radius:26px;overflow:hidden;box-shadow:var(--shadow-lg);border:1px solid rgba(255,255,255,.12);z-index:2}
.hero-photo>img{width:100%;height:100%;object-fit:cover;aspect-ratio:4/5;display:block}
.hero-photo::after{content:"";position:absolute;inset:0;background:linear-gradient(180deg,transparent 55%,rgba(6,11,28,.5))}
.hero-photo .hp-chip{position:absolute;z-index:3;left:16px;bottom:16px;display:flex;align-items:center;gap:8px;background:rgba(6,11,28,.66);backdrop-filter:blur(8px);border:1px solid rgba(255,255,255,.16);border-radius:12px;padding:9px 13px;font-size:.8rem;font-weight:600;color:#eaf1ff}
.hero-photo .hp-chip .d{width:8px;height:8px;border-radius:50%;background:var(--cyan);box-shadow:0 0 10px var(--cyan)}
.robo-inset{position:absolute;left:-22px;bottom:-22px;width:38%;max-width:170px;aspect-ratio:1;z-index:4;background:radial-gradient(120% 120% at 50% 15%,#eef4ff,#dbe6fb);border:1px solid var(--line);border-radius:18px;box-shadow:var(--shadow-lg);display:grid;place-items:center;overflow:hidden}
.robo-inset .robo-grid{position:absolute;inset:0;background-image:linear-gradient(rgba(47,107,255,.10) 1px,transparent 1px),linear-gradient(90deg,rgba(47,107,255,.10) 1px,transparent 1px);background-size:20px 20px;-webkit-mask-image:radial-gradient(70% 70% at 50% 45%,#000,transparent);mask-image:radial-gradient(70% 70% at 50% 45%,#000,transparent)}
.robo-inset .robo-arm{width:78%;height:78%}
@media (max-width:560px){.robo-inset{display:none}}

/* generic media frame */
.media-frame{position:relative;border-radius:24px;overflow:hidden;box-shadow:var(--shadow)}
.media-frame>img{width:100%;height:100%;object-fit:cover;display:block;transition:transform .7s var(--ease)}
.media-frame:hover>img{transform:scale(1.05)}
.media-frame .mf-tag{position:absolute;left:14px;top:14px;background:rgba(6,11,28,.7);color:#fff;font-size:.74rem;font-weight:600;padding:6px 12px;border-radius:999px;backdrop-filter:blur(4px)}

/* photo gallery */
.gallery{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}
.gallery figure{margin:0;position:relative;border-radius:16px;overflow:hidden;aspect-ratio:4/3;box-shadow:var(--shadow-sm);cursor:pointer}
.gallery img{width:100%;height:100%;object-fit:cover;transition:transform .6s var(--ease)}
.gallery figure:hover img{transform:scale(1.08)}
.gallery figcaption{position:absolute;left:0;right:0;bottom:0;padding:16px 14px 12px;color:#fff;font-size:.85rem;font-weight:600;background:linear-gradient(transparent,rgba(6,11,28,.85));opacity:0;transform:translateY(8px);transition:.3s var(--ease)}
.gallery figure:hover figcaption{opacity:1;transform:none}
@media (max-width:768px){.gallery{grid-template-columns:repeat(2,1fr)}}
@media (max-width:520px){.gallery{grid-template-columns:1fr}}

/* section with bg photo (navy) */
.section--photo{position:relative;color:#dce4f5;background-size:cover;background-position:center}
.section--photo::before{content:"";position:absolute;inset:0;background:linear-gradient(120deg,rgba(6,11,28,.92),rgba(10,16,36,.8))}
.section--photo .container{position:relative;z-index:2}
.section--photo h2{color:#fff}

/* vm cards with image */
.vm-card{background:#fff;border:1px solid var(--line);border-radius:var(--radius-lg);overflow:hidden;box-shadow:var(--shadow-sm);transition:transform .3s var(--ease),box-shadow .3s var(--ease)}
.vm-card:hover{transform:translateY(-8px);box-shadow:var(--shadow)}
.vm-card__media{aspect-ratio:16/9;overflow:hidden}
.vm-card__media img{width:100%;height:100%;object-fit:cover;transition:transform .6s var(--ease)}
.vm-card:hover .vm-card__media img{transform:scale(1.05)}
.vm-card__body{padding:26px 28px}
.vm-card__body .feature__icon{margin-bottom:14px}

/* ============================================================
   v4 - UI/UX polish
   ============================================================ */
html{scroll-padding-top:92px}

/* skip link */
.skip-link{position:fixed;top:-60px;left:16px;z-index:200;background:var(--ink);color:#fff;padding:10px 18px;border-radius:0 0 12px 12px;font-weight:600;transition:top .25s var(--ease)}
.skip-link:focus{top:0}

/* scroll progress bar */
.scroll-progress{position:fixed;top:0;left:0;height:3px;width:0;z-index:200;background:var(--grad);box-shadow:0 0 10px rgba(23,211,230,.6);transition:width .1s linear}

/* animated nav underline */
.nav__links > li > a::after{content:"";position:absolute;left:14px;right:14px;bottom:6px;height:2px;background:var(--grad);border-radius:2px;transform:scaleX(0);transform-origin:left;transition:transform .28s var(--ease);opacity:.9}
.nav__links > li > a:hover::after,.nav__links > li > a[aria-current="page"]::after{transform:scaleX(1)}
@media (max-width:768px){.nav__links > li > a::after{display:none}}

/* back to top */
.to-top{position:fixed;right:24px;bottom:92px;z-index:89;width:46px;height:46px;border-radius:12px;display:grid;place-items:center;background:var(--ink);color:#fff;box-shadow:var(--shadow);opacity:0;visibility:hidden;transform:translateY(12px);transition:.3s var(--ease);border:0;cursor:pointer}
.to-top.show{opacity:1;visibility:visible;transform:none}
.to-top:hover{background:var(--blue);transform:translateY(-3px)}
.to-top svg{width:20px;height:20px}

/* hero refinement */
.hero{min-height:94vh}
.hero-photo>img{aspect-ratio:4/4.6}

/* section rhythm + eyebrow accent */
.eyebrow{display:inline-flex;align-items:center;gap:9px}
.eyebrow::before{content:"";width:22px;height:2px;background:currentColor;border-radius:2px;opacity:.6}
.center .eyebrow,.sec-head .eyebrow{justify-content:center}

/* lightbox */
.lb{position:fixed;inset:0;z-index:300;background:rgba(6,11,28,.9);backdrop-filter:blur(6px);display:flex;align-items:center;justify-content:center;padding:24px;opacity:0;visibility:hidden;transition:.3s var(--ease)}
.lb.open{opacity:1;visibility:visible}
.lb img{max-width:min(1000px,92vw);max-height:86vh;border-radius:14px;box-shadow:var(--shadow-lg);transform:scale(.96);transition:transform .3s var(--ease)}
.lb.open img{transform:scale(1)}
.lb__close,.lb__nav{position:absolute;background:rgba(255,255,255,.12);border:1px solid rgba(255,255,255,.2);color:#fff;width:46px;height:46px;border-radius:50%;display:grid;place-items:center;cursor:pointer;transition:.2s}
.lb__close:hover,.lb__nav:hover{background:var(--blue)}
.lb__close{top:22px;right:22px;font-size:1.4rem}
.lb__nav{top:50%;transform:translateY(-50%);font-size:1.6rem}
.lb__nav.prev{left:18px}.lb__nav.next{right:18px}
.lb__cap{position:absolute;bottom:22px;left:0;right:0;text-align:center;color:#dbe6ff;font-size:.92rem}
.gallery figure{cursor:zoom-in}

/* image loading fade-in */
img[loading="lazy"]{background:linear-gradient(110deg,#eef2f8,#f6f8fc);}

/* nicer form focus ring already; add subtle label spacing */
.field label{letter-spacing:.01em}

/* consistent card focus */
.course-card:focus-within,.post-card:focus-within,.trainer-card:focus-within{box-shadow:var(--shadow);border-color:rgba(47,107,255,.4)}

@media (prefers-reduced-motion:reduce){.scroll-progress{transition:none}}

/* ============================================================
   v5 - phone number + call float
   ============================================================ */
.nav__phone{display:inline-flex;align-items:center;gap:8px;font-weight:600;font-size:.9rem;padding:9px 14px;border-radius:999px;border:1px solid var(--line);color:var(--ink);transition:.2s var(--ease)}
.nav__phone svg{width:18px;height:18px;color:var(--blue)}
.nav__phone:hover{border-color:var(--blue);color:var(--blue);transform:translateY(-2px)}
.site-header:not(.scrolled) .nav__phone{color:#fff;border-color:rgba(255,255,255,.28)}
.site-header:not(.scrolled) .nav__phone svg{color:var(--cyan)}
.site-header:not(.scrolled) .nav__phone:hover{color:var(--cyan);border-color:var(--cyan)}
@media (max-width:1100px){.nav__phone span{display:none}.nav__phone{padding:9px 11px}}
@media (max-width:768px){.nav__phone{display:none}}

/* floating call button (bottom-left) */
.call-float{position:fixed;left:24px;bottom:24px;z-index:90;width:56px;height:56px;border-radius:50%;background:var(--ink);display:grid;place-items:center;box-shadow:0 12px 30px rgba(15,23,41,.35);transition:transform .3s var(--ease),background .3s}
.call-float:hover{transform:scale(1.08);background:var(--blue)}
.call-float svg{width:26px;height:26px;color:#fff}
.call-float::after{content:"";position:absolute;inset:0;border-radius:50%;border:2px solid var(--blue);opacity:.6;animation:callPulse 2s ease-out infinite}
@keyframes callPulse{0%{transform:scale(1);opacity:.6}100%{transform:scale(1.5);opacity:0}}
@media (prefers-reduced-motion:reduce){.call-float::after{animation:none;display:none}}
@media (max-width:560px){.call-float{width:50px;height:50px;left:16px;bottom:16px}.call-float svg{width:23px;height:23px}}

/* ============================================================
   v6 - interactive image accordion (hero)
   ============================================================ */
.hero-accordion{display:flex;gap:12px;width:100%;height:460px}
.acc-item{position:relative;flex:1 1 0;min-width:52px;border-radius:18px;overflow:hidden;cursor:pointer;text-decoration:none;
  background-size:cover;background-position:center;box-shadow:var(--shadow-lg);border:1px solid rgba(255,255,255,.1);
  transition:flex-grow .6s var(--ease);flex-grow:1}
.acc-item.is-active{flex-grow:5}
.acc-item::before{content:"";position:absolute;inset:0;background:linear-gradient(180deg,rgba(6,11,28,.15) 30%,rgba(6,11,28,.8));transition:background .4s}
.acc-item:hover::before{background:linear-gradient(180deg,rgba(6,11,28,.1) 20%,rgba(6,11,28,.78))}
.acc-cap{position:absolute;left:50%;bottom:96px;transform:translateX(-50%) rotate(90deg);transform-origin:center;
  white-space:nowrap;color:#fff;font-family:'Space Grotesk',sans-serif;font-weight:600;font-size:1rem;letter-spacing:.01em;
  text-shadow:0 2px 10px rgba(0,0,0,.6);transition:transform .5s var(--ease),bottom .5s var(--ease)}
.acc-item.is-active .acc-cap{bottom:52px;transform:translateX(-50%) rotate(0)}
.acc-go{position:absolute;left:50%;bottom:20px;transform:translateX(-50%) translateY(8px);white-space:nowrap;
  display:inline-flex;align-items:center;gap:6px;color:#0b1230;background:#fff;font-family:'Space Grotesk',sans-serif;
  font-weight:600;font-size:.82rem;padding:7px 14px;border-radius:999px;opacity:0;pointer-events:none;transition:.45s var(--ease);box-shadow:var(--shadow)}
.acc-go svg{width:15px;height:15px}
.acc-item.is-active .acc-go{opacity:1;transform:translateX(-50%) translateY(0)}
/* active accent ring */
.acc-item.is-active{border-color:rgba(23,211,230,.5)}

@media (max-width:1024px){.hero-accordion{height:420px}}
@media (max-width:768px){
  .hero-accordion{height:360px;gap:8px}
  .acc-item{min-width:40px}
  .acc-cap{bottom:74px;font-size:.9rem}
  .acc-item.is-active .acc-cap{bottom:48px}
}
@media (max-width:560px){
  .hero-accordion{height:320px}
  .acc-cap{font-size:.82rem;bottom:64px}
  .acc-go{font-size:.76rem;padding:6px 12px}
}

/* ============================================================
   v7 - tubelight nav indicator
   ============================================================ */
.nav__links{position:relative}
.nav__links > li{position:relative;z-index:1}
.nav__links > li > a::after{display:none} /* replaced by the tubelight lamp */
.nav__lamp{
  position:absolute;top:50%;transform:translateY(-50%);height:38px;border-radius:999px;
  background:var(--grad-soft);border:1px solid rgba(47,107,255,.22);opacity:0;pointer-events:none;z-index:0;
  transition:left .42s var(--ease),width .42s var(--ease),opacity .3s var(--ease);
}
.nav__lamp::before{
  content:"";position:absolute;top:-9px;left:50%;transform:translateX(-50%);
  width:34px;height:4px;border-radius:0 0 8px 8px;background:var(--blue);
  box-shadow:0 0 18px 4px rgba(47,107,255,.55);
}
.nav__lamp::after{
  content:"";position:absolute;top:-9px;left:50%;transform:translateX(-50%);
  width:48px;height:22px;border-radius:50%;background:rgba(47,107,255,.28);filter:blur(9px);
}
.site-header:not(.scrolled) .nav__lamp{background:rgba(255,255,255,.10);border-color:rgba(255,255,255,.16)}
.site-header:not(.scrolled) .nav__lamp::before{background:var(--cyan);box-shadow:0 0 18px 4px var(--cyan-glow)}
.site-header:not(.scrolled) .nav__lamp::after{background:var(--cyan-glow)}
@media (max-width:768px){.nav__lamp{display:none}}

/* ============================================================
   v8 - spotlight cards, bento why-choose, aurora CTA
   ============================================================ */
/* Spotlight cards (course + blog) */
.course-card,.post-card{--mx:50%;--my:50%}
.course-card::before,.post-card::before{
  content:"";position:absolute;inset:0;border-radius:inherit;z-index:4;pointer-events:none;opacity:0;
  background:radial-gradient(220px circle at var(--mx) var(--my),rgba(47,107,255,.16),transparent 62%);
  transition:opacity .35s var(--ease);
}
.course-card:hover::before,.post-card:hover::before{opacity:1}

/* Bento "Why choose us" */
.bento{display:grid;grid-template-columns:repeat(3,1fr);grid-auto-rows:200px;gap:18px}
.bento-tile{position:relative;border-radius:var(--radius-lg);border:1px solid var(--line);background:#fff;padding:28px;overflow:hidden;
  transition:transform .3s var(--ease),box-shadow .3s var(--ease),border-color .3s}
.bento-tile:hover{transform:translateY(-6px);box-shadow:var(--shadow);border-color:rgba(47,107,255,.25)}
.bento-tile h3{margin-bottom:6px}
.bento-tile p{color:var(--slate);margin:0;font-size:.95rem}
.bento-tile .feature__icon{margin-bottom:14px}
.bento-photo{grid-row:span 2;padding:0;color:#fff;border:0}
.bento-photo img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;transition:transform .6s var(--ease)}
.bento-photo:hover img{transform:scale(1.05)}
.bento-photo .bento-cap{position:absolute;inset:auto 0 0 0;padding:24px;font-family:'Space Grotesk',sans-serif;font-weight:600;font-size:1.05rem;
  background:linear-gradient(transparent,rgba(6,11,28,.86));z-index:2}
.bento-intro{grid-column:span 2;display:flex;flex-direction:column;justify-content:center}
.bento-intro .eyebrow{margin-bottom:10px}
.bento-intro h2{margin:0 0 8px}
.bento-wide{grid-column:span 3;display:flex;align-items:center;gap:22px}
.bento-wide .feature__icon{margin:0;flex:0 0 auto}
@media(max-width:768px){
  .bento{grid-template-columns:1fr;grid-auto-rows:auto}
  .bento-photo{grid-row:auto;min-height:240px}
  .bento-intro,.bento-wide{grid-column:auto}
  .bento-wide{flex-direction:column;align-items:flex-start;text-align:left}
}

/* Aurora / animated glow on CTA bands */
.cta-band::after{
  content:"";position:absolute;inset:-45%;z-index:0;pointer-events:none;filter:blur(70px);opacity:.5;
  background:conic-gradient(from 0deg at 50% 50%,rgba(47,107,255,.5),rgba(23,211,230,.42),transparent 34%,rgba(47,107,255,.5) 68%,rgba(23,211,230,.42));
  animation:aurora 16s linear infinite;
}
@keyframes aurora{to{transform:rotate(360deg)}}
@media(prefers-reduced-motion:reduce){.cta-band::after{animation:none}}

/* ============================================================
   v9 - animated headline, marquee chips, stat icons
   ============================================================ */
/* Animated gradient hero headline */
.hero h1 .accent{
  background:linear-gradient(120deg,var(--blue),var(--cyan),#8ad4ff,var(--blue));
  background-size:220% 100%;-webkit-background-clip:text;background-clip:text;color:transparent;
  animation:hueShift 7s var(--ease) infinite;
}
@keyframes hueShift{0%,100%{background-position:0% 50%}50%{background-position:100% 50%}}
@media(prefers-reduced-motion:reduce){.hero h1 .accent{animation:none}}

/* Partner marquee as chips */
.marquee img{
  height:42px;padding:14px 22px;background:#fff;border:1px solid var(--line);border-radius:14px;
  box-shadow:var(--shadow-sm);filter:grayscale(1);opacity:.75;transition:.3s var(--ease)
}
.marquee img:hover{filter:none;opacity:1;transform:translateY(-3px);box-shadow:var(--shadow)}

/* Stat icons (number ticker) */
.stat{display:flex;flex-direction:column;align-items:center}
.stat__icon{width:52px;height:52px;border-radius:14px;display:grid;place-items:center;margin:0 auto 14px;
  background:rgba(255,255,255,.08);border:1px solid rgba(255,255,255,.16);color:var(--cyan)}
.stat__icon svg{width:26px;height:26px}

/* Submit button loading state */
.form-card button[disabled]{opacity:.7;cursor:progress}

/* ============================================================
   v10 - blog article pages
   ============================================================ */
.article{max-width:760px;margin:0 auto}
.article__meta{display:flex;flex-wrap:wrap;gap:16px;color:var(--muted);font-size:.9rem;margin-bottom:22px;align-items:center}
.article__meta .cat{color:var(--blue);font-weight:600;text-transform:uppercase;letter-spacing:.05em;font-size:.78rem}
.article__lead{font-size:1.22rem;line-height:1.6;color:var(--ink);font-weight:500;margin-bottom:1.2em}
.article p{color:var(--slate);font-size:1.06rem;line-height:1.75;margin-bottom:1.15em}
.article h2{font-size:1.5rem;margin:1.6em 0 .5em}
.article ul{margin:0 0 1.3em;padding:0}
.article ul li{position:relative;padding:6px 0 6px 26px;color:var(--slate)}
.article ul li::before{content:"";position:absolute;left:0;top:15px;width:8px;height:8px;border-radius:50%;background:var(--cyan)}
.article strong{color:var(--ink)}
.article blockquote{margin:1.4em 0;padding:18px 24px;border-left:3px solid var(--blue);background:var(--bg-soft);border-radius:0 12px 12px 0;color:var(--ink);font-size:1.08rem}
.article__cta{margin-top:36px;padding:28px;border-radius:var(--radius-lg);background:var(--grad-soft);border:1px solid rgba(47,107,255,.18);text-align:center}
.article__cta h3{margin:0 0 8px}
.article__cta p{margin:0 0 18px;color:var(--slate)}
.article__hero-img{max-width:900px;margin:-40px auto 40px;border-radius:var(--radius-lg);overflow:hidden;box-shadow:var(--shadow);position:relative;z-index:4}
.article__hero-img img{width:100%;height:auto;display:block;aspect-ratio:16/8;object-fit:cover}

/* ============================================================
   v11 - footer polish (visible logo + richer color)
   ============================================================ */
.site-footer{
  position:relative;
  background:radial-gradient(900px 300px at 15% 0%,rgba(47,107,255,.14),transparent 60%),
             radial-gradient(700px 300px at 90% 10%,rgba(23,211,230,.10),transparent 60%),
             linear-gradient(180deg,#0b1330,var(--navy-900));
  border-top:1px solid rgba(255,255,255,.08);
}
.site-footer::before{content:"";position:absolute;top:0;left:0;right:0;height:3px;background:var(--grad)}
/* logo on a clean white chip so it is clearly visible on the dark footer */
.footer-brand img{
  background:#fff;padding:10px 16px;border-radius:14px;height:56px;width:auto;
  box-shadow:0 10px 26px rgba(0,0,0,.35);
}
.footer-brand p{margin-top:18px}
/* headings + links a touch brighter for contrast */
.site-footer h4{color:#fff}
.site-footer a{color:#aab6d4}
.site-footer a:hover{color:var(--cyan)}
.footer-badge{background:rgba(255,255,255,.06);border-color:rgba(255,255,255,.12)}
.footer-bottom{border-top:1px solid rgba(255,255,255,.10)}

/* ============================================================
   v12 - partner logos: bigger + real colours
   ============================================================ */
.marquee__track{gap:40px}
.marquee img{
  height:66px;width:auto;padding:16px 26px;
  background:#fff;border:1px solid var(--line);border-radius:16px;box-shadow:var(--shadow-sm);
  filter:none;opacity:1;object-fit:contain;transition:transform .3s var(--ease),box-shadow .3s var(--ease);
}
.marquee img:hover{transform:translateY(-4px);box-shadow:var(--shadow)}
@media(max-width:560px){.marquee img{height:54px;padding:14px 20px}}