/* ============================================================
   edtrainit Core — conceptual homepage
   Matches sample/core PDF: warm paper, ink navy, leaf green.
   ============================================================ */
:root{
  --paper:#FAF6EC;
  --paper-2:#F4EDDD;
  --card:#FFFFFF;
  --ink:#142437;
  --ink-2:#4C5B70;
  --ink-3:#7A8698;
  --navy:#0B1F3A;
  --navy-2:#12294A;
  --green:#147A56;
  --green-deep:#0C5B40;
  --green-ink:#0E6B4A;
  --line:#E7DCC4;
  --line-soft:#EFE6D2;
  --amber:#B7791F;
  --amber-bg:#FDF3E1;
  --red:#C0392B;
  --red-bg:#FDECEA;
  --green-bg:#E4F3EC;
  --r:20px;
  --r-sm:14px;
  --sh:0 2px 6px rgba(20,36,55,.06), 0 18px 40px -24px rgba(20,36,55,.25);
  --font-h:"Plus Jakarta Sans",system-ui,-apple-system,"Segoe UI",sans-serif;
  --font-b:"Inter",system-ui,-apple-system,"Segoe UI",sans-serif;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;
  font-family:var(--font-b);
  background:var(--paper);
  color:var(--ink);
  font-size:17px;
  line-height:1.65;
  -webkit-font-smoothing:antialiased;
}
h1,h2,h3{font-family:var(--font-h);line-height:1.12;letter-spacing:-.02em;margin:0}
a{color:inherit}
.core-wrap{max-width:1060px;margin:0 auto;padding:0 28px}

/* ---------- eyebrow / headings ---------- */
.core-eyebrow{
  text-transform:uppercase;
  letter-spacing:.14em;
  font-size:12px;
  font-weight:700;
  color:var(--green-ink);
  margin:0 0 14px;
  font-family:var(--font-h);
}
.core-eyebrow-light{color:#8FD6B4}
.core-h1{font-size:clamp(38px,6vw,62px);font-weight:800;color:var(--navy)}
.core-h1-green{color:var(--green-ink)}
.core-h2{font-size:clamp(28px,4vw,40px);font-weight:800;color:var(--navy);margin-bottom:14px}
.core-h2-light{color:#fff}
.core-lede{font-size:clamp(16px,2vw,19px);color:var(--ink-2);max-width:62ch;margin:0 0 10px}
.core-lede-strong{color:var(--ink);font-weight:600}
.core-micro{font-size:13px;color:var(--ink-3);margin:10px 0 0}
.core-micro-muted{color:var(--ink-3)}

/* ---------- buttons ---------- */
.core-btn{
  display:inline-flex;align-items:center;gap:8px;
  font-family:var(--font-h);font-weight:700;font-size:15px;
  padding:13px 24px;border-radius:999px;text-decoration:none;
  border:1.5px solid transparent;cursor:pointer;
  transition:transform .18s ease, box-shadow .18s ease, background .18s ease;
}
.core-btn:hover{transform:translateY(-1px)}
.core-btn-green{background:var(--green);color:#fff;box-shadow:0 10px 24px -10px rgba(20,122,86,.6)}
.core-btn-green:hover{background:var(--green-deep)}
.core-btn-dark{background:var(--navy);color:#fff}
.core-btn-dark:hover{background:var(--navy-2)}
.core-btn-ghost{background:transparent;color:var(--navy);border-color:var(--navy)}
.core-btn-ghost:hover{background:rgba(11,31,58,.06)}
.core-btn-white{background:#fff;color:var(--green-deep)}
.core-btn-sm{padding:10px 20px;font-size:14px}
.core-cta-row{display:flex;gap:12px;flex-wrap:wrap;margin:26px 0 40px}

/* ---------- shared primary nav (same as edtrainit / IMAT) ---------- */
:root{
  --nav-h:62px;
  --sub-h:54px;
}
html{scroll-padding-top:calc(var(--nav-h) + var(--sub-h) + 16px)}
.skip-link{position:absolute;left:-9999px;top:0;z-index:200;background:var(--navy);color:#fff;padding:12px 20px;border-radius:999px;font-weight:600}
.skip-link:focus{left:12px;top:12px}
.nav{
  position:sticky;top:0;z-index:110;
  background:rgba(250,246,236,.92);
  -webkit-backdrop-filter:saturate(180%) blur(14px);backdrop-filter:saturate(180%) blur(14px);
  border-bottom:1px solid var(--line-soft);
  transition:box-shadow .32s ease;
}
.nav-inner{
  max-width:1060px;margin:0 auto;padding:0 28px;
  height:var(--nav-h);
  display:flex;align-items:center;justify-content:space-between;gap:20px;
}
.nav.is-scrolled{box-shadow:0 8px 24px -16px rgba(20,36,55,.35)}
.brand{display:inline-flex;align-items:center;gap:11px;flex:none;text-decoration:none;
  font-family:var(--font-h);font-weight:800;font-size:19px;letter-spacing:-.02em;color:var(--navy)}
.brand-logo{width:30px;height:30px;border-radius:9px;display:block;flex:none}
.brand-r,.brand-tm{font-size:12px;vertical-align:super;font-weight:600;color:var(--green-ink);margin-left:-10px}
.nav-links{display:flex;align-items:center;gap:4px;list-style:none;margin:0;padding:0}
.nav-links>li{position:relative}
.nav-links a,.nav-links .nav-dd-toggle{
  display:inline-flex;align-items:center;gap:5px;white-space:nowrap;
  font-size:14.5px;font-weight:500;color:var(--ink-2);text-decoration:none;
  padding:9px 13px;border-radius:999px;cursor:pointer;background:none;border:0;
  transition:color .32s ease,background .32s ease;
}
.nav-links a:hover,.nav-links .nav-dd-toggle:hover{color:var(--green-deep);background:rgba(20,122,86,.09)}
.nav-links a.is-here{color:var(--green-deep);background:var(--green-bg);font-weight:600}
.nav-dd-arrow{font-size:11px;color:var(--green-ink);transition:transform .32s ease}
.nav-dd-menu{
  position:absolute;top:calc(100% + 10px);left:50%;transform:translateX(-50%) translateY(8px);
  min-width:230px;list-style:none;margin:0;padding:8px;
  background:rgba(255,255,255,.97);-webkit-backdrop-filter:blur(16px);backdrop-filter:blur(16px);
  border:1px solid var(--line-soft);border-radius:16px;
  box-shadow:0 8px 20px -8px rgba(20,36,55,.10),0 30px 60px -24px rgba(12,91,64,.22);
  opacity:0;visibility:hidden;pointer-events:none;
  transition:opacity .32s ease,transform .32s ease,visibility .32s;
}
.nav-dd-menu::before{content:"";position:absolute;left:0;right:0;top:-12px;height:12px}
.nav-dd:hover .nav-dd-menu,.nav-dd:focus-within .nav-dd-menu{opacity:1;visibility:visible;pointer-events:auto;transform:translateX(-50%) translateY(0)}
.nav-dd:hover .nav-dd-arrow,.nav-dd:focus-within .nav-dd-arrow{transform:rotate(180deg)}
.nav-dd-menu a{display:flex;align-items:center;justify-content:space-between;gap:14px;
  font-size:14px;border-radius:10px;white-space:nowrap;padding:10px 13px;width:100%}
.nav-dd-note{font-size:10px;letter-spacing:.08em;text-transform:uppercase;color:var(--ink-3)}
.nav-links .nav-cta{background:var(--navy);color:#fff;font-weight:600;padding:10px 20px;
  transition:transform .32s ease,box-shadow .32s ease,background .32s ease}
.nav-links .nav-cta:hover{color:#fff;background:var(--navy-2);transform:translateY(-2px);
  box-shadow:0 10px 24px -8px rgba(11,31,58,.55)}
.hamburger{display:none;width:44px;height:44px;border:1px solid var(--line);
  background:rgba(255,255,255,.7);border-radius:14px;cursor:pointer;
  align-items:center;justify-content:center;flex-direction:column;gap:5px;flex:none}
.hamburger span{width:20px;height:2px;background:var(--navy);border-radius:2px;
  transition:transform .32s ease,opacity .32s ease}
.nav.menu-open .hamburger span:nth-child(1){transform:translateY(7px) rotate(45deg)}
.nav.menu-open .hamburger span:nth-child(2){opacity:0}
.nav.menu-open .hamburger span:nth-child(3){transform:translateY(-7px) rotate(-45deg)}
.mobile-panel{display:none}
/* keep old core-brand for footer */
.core-brand{display:inline-flex;align-items:center;gap:10px;text-decoration:none;font-family:var(--font-h);font-weight:800;font-size:18px;color:var(--navy)}
.core-brand-logo{border-radius:6px}
.core-brand-core{color:var(--green-ink);font-weight:700}

/* ---------- subbar (Core sections — same pattern as IMAT) ---------- */
.subbar{
  position:sticky;top:calc(var(--nav-h) - 1px);z-index:105;
  margin-bottom:-1px;padding-top:1px;
  background:linear-gradient(135deg,#0B1F3A 0%,#12294A 100%);
  border-top:1px solid rgba(255,255,255,.12);
}
.subbar-inner{max-width:1060px;margin:0 auto;padding:0 28px;
  display:flex;align-items:center;gap:18px;height:var(--sub-h)}
.subbar-brand{display:inline-flex;align-items:baseline;gap:7px;flex:none;white-space:nowrap;text-decoration:none;
  font-family:var(--font-h);font-weight:800;font-size:15px;letter-spacing:-.02em;color:#fff}
.subbar-brand i{font-style:normal;font-size:11px;font-weight:700;
  letter-spacing:.12em;color:#8FD6B4;text-transform:uppercase}
.subnav{display:flex;align-items:center;gap:2px;overflow-x:auto;scrollbar-width:none;
  -ms-overflow-style:none;flex:1;justify-content:center;justify-content:safe center}
.subnav::-webkit-scrollbar{display:none}
.subnav a{flex:none;font-size:13.5px;font-weight:500;color:rgba(255,255,255,.78);
  white-space:nowrap;text-decoration:none;padding:7px 12px;border-radius:999px;
  transition:color .32s ease,background .32s ease}
.subnav a:hover{color:#fff;background:rgba(255,255,255,.1)}
.subnav a.is-active{color:#0B1F3A;background:#E4F3EC;font-weight:600}
.subbar-progress{height:2px;background:transparent;position:relative;margin-top:-2px}
.subbar-progress i{display:block;height:2px;width:0;background:linear-gradient(135deg,#2fe0be,#147A56);
  transition:width .12s linear}

/* ---------- hero ---------- */
.core-hero{padding:72px 0 70px;position:relative;overflow:hidden}
.core-hero-visual{position:relative;margin-top:8px;padding-bottom:34px}
.core-hero-figure{margin:0;border-radius:var(--r);overflow:hidden;border:1px solid var(--line-soft);box-shadow:var(--sh);background:#E9E2D0}
.core-hero-figure img{display:block;width:100%;height:clamp(280px,44vw,430px);object-fit:cover}
.core-float-card{
  position:absolute;left:24px;bottom:0;
  background:#fff;border:1px solid var(--line-soft);border-radius:16px;
  box-shadow:var(--sh);padding:14px 18px;min-width:250px;
}
.core-float-kicker{font-family:var(--font-h);font-size:11px;font-weight:800;letter-spacing:.1em;text-transform:uppercase;color:var(--ink-3);margin:0 0 8px}
.core-float-rows{display:grid;gap:6px;margin:0}
.core-float-rows>div{display:flex;justify-content:space-between;gap:18px;font-size:14px}
.core-float-rows dt{color:var(--ink-2)}
.core-float-rows dd{margin:0;font-weight:700}
.core-amber{color:var(--amber)}
.core-green{color:var(--green-ink)}

/* ---------- problem (navy) ---------- */
.core-problem{background:var(--navy);color:#DCE5F2;padding:72px 0;border-radius:0}
.core-problem-lede{font-size:clamp(17px,2.2vw,21px);font-weight:700;color:#fff;margin:18px 0 8px}
.core-problem-sub{color:#B9C6DA;max-width:60ch;margin:0 0 6px}
.core-problem-where{color:#8FD6B4;font-weight:600;margin:10px 0 28px}
.core-student-grid{display:grid;grid-template-columns:1fr 1fr;gap:16px}
.core-student{background:var(--navy-2);border:1px solid rgba(255,255,255,.12);border-radius:16px;padding:18px 20px}
.core-student-top{display:flex;justify-content:space-between;align-items:baseline;gap:12px;margin-bottom:6px}
.core-student-name{font-family:var(--font-h);font-weight:700;color:#fff;margin:0;font-size:15px}
.core-student-score{font-family:var(--font-h);font-weight:800;color:#fff;margin:0}
.core-student-note{margin:0;color:#B9C6DA;font-size:15px}

/* ---------- how ---------- */
.core-how{padding:72px 0 20px}
.core-steps{display:grid;grid-template-columns:repeat(4,1fr);gap:16px;margin-top:30px;background:transparent;border:0;overflow:visible;box-shadow:none}
.core-step{padding:26px 24px;background:var(--card);border:1px solid var(--line-soft);border-radius:var(--r);box-shadow:var(--sh)}
.core-step-top{display:flex;align-items:center;justify-content:space-between;gap:12px;margin-bottom:14px}
.core-step-n{font-family:var(--font-h);font-size:13px;font-weight:800;color:var(--green-ink);letter-spacing:.08em;margin:0}
.core-step h3{font-size:19px;color:var(--navy);margin:0 0 8px}
.core-step p{margin:0;color:var(--ink-2);font-size:15px}

/* ---------- teachers ---------- */
.core-teachers{padding:60px 0 10px}
.core-panel{background:var(--card);border:1px solid var(--line-soft);border-radius:var(--r);box-shadow:var(--sh);overflow:hidden;margin-top:26px}
.core-panel-head{display:flex;justify-content:space-between;align-items:center;gap:12px;padding:16px 22px;border-bottom:1px solid var(--line-soft)}
.core-panel-title{font-family:var(--font-h);font-weight:700;font-size:14px;margin:0;color:var(--navy)}
.core-pill{font-size:11px;font-weight:700;letter-spacing:.08em;text-transform:uppercase;color:var(--ink-3);border:1px solid var(--line);border-radius:999px;padding:5px 12px;background:var(--paper)}
.core-table{padding:6px 22px 14px}
.core-tr{display:grid;grid-template-columns:1fr 1fr;gap:12px;padding:13px 0;border-top:1px solid var(--line-soft);font-size:15px}
.core-tr-head{font-size:12px;font-weight:800;letter-spacing:.1em;text-transform:uppercase;color:var(--ink-3);border-top:0}
.core-status{display:inline-flex;align-items:center;gap:8px}
.dot{width:9px;height:9px;border-radius:50%;display:inline-block;flex:none}
.dot-green{background:var(--green)}
.dot-amber{background:#E0A63C}
.dot-red{background:var(--red)}

/* practice band — full-section bg separating student view from teacher view */
.core-practice{background:linear-gradient(180deg,#F4ECDA 0%,#EBDDC0 100%);border-top:1px solid #DECFAC;border-bottom:1px solid #DECFAC;padding:48px 0 60px;margin-top:56px}
.core-div{display:flex;align-items:center;gap:14px;margin:0 0 20px}
.core-div span{flex:1;height:1px;background:linear-gradient(90deg,transparent,#C3AD7E,transparent)}
.core-div i{font-style:normal;color:#8A744D;font-size:14px}
/* question card — back to white, sits on the tinted band */
.core-qcard{background:var(--card);border:1px solid var(--line-soft);border-radius:var(--r);box-shadow:var(--sh);padding:26px;margin-top:18px}
.core-q-kicker{font-size:12px;font-weight:800;letter-spacing:.12em;text-transform:uppercase;color:var(--ink-3);margin:0 0 10px}
.core-q-title{font-size:clamp(18px,2.4vw,22px);color:var(--navy);margin-bottom:16px}
.core-answers{list-style:none;margin:0 0 16px;padding:0;display:grid;gap:10px}
.core-answer{display:flex;justify-content:space-between;align-items:center;gap:12px;border-radius:12px;padding:13px 16px;font-weight:600;font-size:15px;border:1.5px solid transparent}
.core-answer.is-wrong{background:var(--red-bg);border-color:#F2C4BE;color:#7A2A21}
.core-answer.is-right{background:var(--green-bg);border-color:#BFE3D2;color:#0C4A33}
.core-tag{font-size:12px;font-weight:700;padding:4px 12px;border-radius:999px;white-space:nowrap}
.core-tag-red{background:#fff;color:var(--red);border:1px solid #EFB5AD}
.core-tag-green{background:#fff;color:var(--green-ink);border:1px solid #9FD8BC}
.core-why{background:var(--paper);border:1px solid var(--line-soft);border-radius:12px;padding:14px 16px;font-size:15px;color:var(--ink-2);margin:0 0 14px}
.core-why strong{color:var(--ink)}
.core-q-foot{display:flex;justify-content:space-between;align-items:center;gap:12px;flex-wrap:wrap}
.core-q-foot .core-micro{margin:0}
.core-q-foot .core-btn{margin-left:auto}

/* ---------- students / banner ---------- */
.core-students{padding:60px 0 80px}
.core-cta-banner{
  margin-top:34px;background:linear-gradient(135deg,#12714E,#0C5B40);
  color:#fff;border-radius:24px;padding:clamp(28px,4vw,48px);
  box-shadow:0 24px 50px -24px rgba(12,91,64,.55);
}
.core-cta-banner h3{font-size:clamp(26px,3.6vw,36px);margin:0 0 10px}
.core-cta-banner p{margin:0 0 22px;color:#D7EBE1;max-width:52ch}

/* ---------- footer ---------- */
.core-footer{border-top:1px solid var(--line-soft);padding:34px 0 44px;background:var(--paper)}
.core-footer-inner{display:grid;gap:12px}
.core-brand-footer{font-size:16px}
.core-footer-links{display:flex;gap:20px;flex-wrap:wrap}
.core-footer-links a{text-decoration:none;font-weight:600;font-size:14px;color:var(--ink-2)}
.core-footer-links a:hover{color:var(--green-ink)}

/* ---------- hero fx ---------- */
.core-hero-bg{position:absolute;inset:0;pointer-events:none;overflow:hidden}
.core-hero-bg .orb{position:absolute;border-radius:50%;filter:blur(70px);opacity:.5;animation:drift 14s ease-in-out infinite alternate}
.orb-1{width:420px;height:420px;left:-120px;top:-120px;background:radial-gradient(circle,#BFE9D3,transparent 65%)}
.orb-2{width:520px;height:520px;right:-160px;top:6%;background:radial-gradient(circle,#F5DFAE,transparent 65%);animation-delay:-4s}
.orb-3{width:380px;height:380px;left:38%;bottom:-180px;background:radial-gradient(circle,#CDE7F6,transparent 65%);animation-delay:-8s;opacity:.4}
.core-hero-bg .grid{position:absolute;inset:0;background-image:linear-gradient(rgba(11,31,58,.05) 1px,transparent 1px),linear-gradient(90deg,rgba(11,31,58,.05) 1px,transparent 1px);background-size:44px 44px;mask-image:radial-gradient(ellipse 75% 65% at 50% 30%,#000 30%,transparent 75%)}
@keyframes drift{from{transform:translate(0,0) scale(1)}to{transform:translate(40px,30px) scale(1.08)}}
.shimmer-text{background:linear-gradient(100deg,var(--green-ink) 20%,#2fbf8f 40%,var(--green-ink) 60%);background-size:200% auto;-webkit-background-clip:text;background-clip:text;color:transparent;animation:shine-text 5s linear infinite}
@keyframes shine-text{to{background-position:200% center}}
.core-hero-figure{position:relative;transform-style:preserve-3d;transition:transform .35s ease,box-shadow .35s ease}
.core-hero-figure:hover{box-shadow:0 30px 70px -28px rgba(11,31,58,.5)}
.core-hero-figure img{transform:scale(1.06);animation:kenburns 22s ease-in-out infinite alternate}
@keyframes kenburns{from{transform:scale(1.06)}to{transform:scale(1.14) translate(-1.5%,1%)}}
.hero-sheen{position:absolute;inset:0;background:linear-gradient(105deg,transparent 40%,rgba(255,255,255,.35) 50%,transparent 60%);background-size:250% 100%;animation:sheen 7s ease-in-out infinite;pointer-events:none}
@keyframes sheen{0%,55%{background-position:120% 0}100%{background-position:-40% 0}}
.hero-chip{position:absolute;padding:9px 15px;border-radius:999px;background:rgba(255,255,255,.92);backdrop-filter:blur(10px);border:1px solid var(--line-soft);box-shadow:var(--sh);font-family:var(--font-h);font-size:12.5px;font-weight:700;color:var(--navy);animation:bob 4.5s ease-in-out infinite;z-index:3;white-space:nowrap}
.chip-a{top:22px;right:22px}
.chip-b{left:22px;top:22px;animation-delay:-2.2s;color:var(--green-deep)}
@keyframes bob{0%,100%{transform:translateY(0)}50%{transform:translateY(-8px)}}
.pulse-dot{display:inline-block;width:8px;height:8px;border-radius:50%;background:#22B07D;margin-right:7px;position:relative}
.pulse-dot::after{content:"";position:absolute;inset:-4px;border-radius:50%;border:2px solid #22B07D;opacity:.6;animation:ping 1.8s ease-out infinite}
@keyframes ping{from{transform:scale(.5);opacity:.8}to{transform:scale(1.3);opacity:0}}
.floaty{animation:floaty 6s ease-in-out infinite}
@keyframes floaty{0%,100%{transform:translateY(0)}50%{transform:translateY(-7px)}}
.core-progress-track{height:7px;border-radius:99px;background:#EDF0F4;margin-top:12px;overflow:hidden}
.core-progress-track i{display:block;height:100%;width:0;border-radius:99px;background:linear-gradient(90deg,#2fbf8f,#147A56);transition:width 1.4s cubic-bezier(.22,1,.36,1)}
.core-progress-track i.go{width:var(--p,75%)}
.btn-shine{position:relative;overflow:hidden}
.btn-shine::after{content:"";position:absolute;top:0;left:-80%;width:50%;height:100%;background:linear-gradient(100deg,transparent,rgba(255,255,255,.5),transparent);transform:skewX(-20deg);animation:btnshine 3.8s ease-in-out infinite}
@keyframes btnshine{0%,60%{left:-80%}100%{left:180%}}

/* ---------- problem fx ---------- */
.core-problem{position:relative;overflow:hidden}
.core-problem::before,.core-problem::after{content:"";position:absolute;border-radius:50%;filter:blur(90px);pointer-events:none}
.core-problem::before{width:480px;height:480px;left:-160px;top:-160px;background:radial-gradient(circle,rgba(47,224,190,.22),transparent 65%)}
.core-problem::after{width:520px;height:520px;right:-180px;bottom:-220px;background:radial-gradient(circle,rgba(20,122,86,.35),transparent 65%)}
.core-student{position:relative;transition:transform .3s ease,box-shadow .3s ease,border-color .3s ease;overflow:hidden}
.core-student::after{content:"";position:absolute;inset:0 0 auto 0;height:3px;background:linear-gradient(90deg,#2fe0be,#147A56);transform:scaleX(0);transform-origin:left;transition:transform .45s ease}
.core-student:hover{transform:translateY(-5px);border-color:rgba(143,214,180,.5);box-shadow:0 22px 50px -20px rgba(0,0,0,.5)}
.core-student:hover::after{transform:scaleX(1)}
.core-student-score{background:linear-gradient(90deg,#fff,#8FD6B4);-webkit-background-clip:text;background-clip:text}

/* ---------- steps fx ---------- */
.core-steps{position:relative}
.core-step{position:relative;transition:transform .3s ease,background .3s ease}
.core-step:hover{transform:translateY(-4px);background:linear-gradient(180deg,#fff,#F2FBF6)}
.core-step-ico{display:inline-flex;width:44px;height:44px;flex:none;border-radius:14px;align-items:center;justify-content:center;color:#fff;background:linear-gradient(135deg,#147A56,#0B1F3A);box-shadow:0 10px 22px -10px rgba(20,122,86,.6);margin:0;transition:transform .3s ease}
.core-step:hover .core-step-ico{transform:rotate(-8deg) scale(1.08)}
.core-step-ico svg{width:24px;height:24px}
.core-step-n{position:relative}
.core-step:not(:last-child)::after{content:"";position:absolute;right:-25px;top:50%;z-index:2;width:34px;height:34px;aspect-ratio:1/1;flex:none;margin-top:-17px;padding:0;line-height:0;display:block;border-radius:50%;background-color:#0E3A32;background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='white' stroke-width='2.6' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpath d='M9 5l7 7-7 7'/%3E%3C/svg%3E"),linear-gradient(135deg,#0B1F3A 0%,#147A56 100%);background-repeat:no-repeat;background-position:center;background-size:15px 15px,cover;border:2px solid #FAF6EC;box-shadow:0 10px 22px -8px rgba(11,31,58,.55);animation:nudge 4s ease-in-out infinite}
@keyframes nudge{0%,100%{transform:translateX(0)}50%{transform:translateX(3px)}}

/* ---------- teacher panel fx ---------- */
.core-panel,.core-qcard{transition:transform .3s ease,box-shadow .3s ease}
.core-panel:hover,.core-qcard:hover{transform:translateY(-3px);box-shadow:0 30px 60px -28px rgba(20,36,55,.35)}
.core-tr{transition:background .25s ease}
.core-tr:not(.core-tr-head):hover{background:#F7FBF8}
.mini-bar{display:block;height:6px;border-radius:99px;background:#E8EDF1;margin-top:8px;overflow:hidden;flex:1 1 100%}
.mini-bar i{display:block;height:100%;width:0;border-radius:99px;background:linear-gradient(90deg,#2fbf8f,#147A56);transition:width 1.2s cubic-bezier(.22,1,.36,1)}
.dot{position:relative}
.dot::after{content:"";position:absolute;inset:-4px;border-radius:50%;border:2px solid currentColor;opacity:0;animation:ping 2.4s ease-out infinite}
.dot-green{color:#147A56}.dot-amber{color:#E0A63C}.dot-red{color:#C0392B}
.core-answer{cursor:pointer;transition:transform .22s ease,box-shadow .22s ease}
.core-answer:hover{transform:translateX(4px) scale(1.01);box-shadow:0 12px 26px -14px rgba(20,36,55,.35)}
.core-answer.picked{animation:pop .35s ease}
@keyframes pop{0%{transform:scale(1)}40%{transform:scale(1.03)}100%{transform:scale(1)}}
.core-why{max-height:0;opacity:0;overflow:hidden;padding-top:0;padding-bottom:0;margin-bottom:0;border-width:0;transition:max-height .5s ease,opacity .4s ease,padding .3s ease,margin .3s ease}
.core-why.show{max-height:220px;opacity:1;padding:14px 16px;margin:0 0 14px;border-width:1px}
.q-hint{font-weight:600;letter-spacing:0;text-transform:none;color:var(--green-ink)}

/* ---------- banner fx ---------- */
.core-cta-banner{position:relative;overflow:hidden;isolation:isolate}
@property --beam{syntax:"<angle>";initial-value:0deg;inherits:false}
.core-cta-banner::after{content:"";position:absolute;inset:3px;border-radius:21px;padding:2px;background:conic-gradient(from var(--beam),transparent 0 80%,rgba(143,245,200,.15) 86%,#8FF5C8 91%,#fff 93%,#8FF5C8 95%,transparent 100%);-webkit-mask:linear-gradient(#000 0 0) content-box,linear-gradient(#000 0 0);-webkit-mask-composite:xor;mask:linear-gradient(#000 0 0) content-box,linear-gradient(#000 0 0);mask-composite:exclude;animation:beam 5s linear infinite;z-index:2;pointer-events:none}
@keyframes beam{to{--beam:360deg}}
.core-cta-banner h3,.core-cta-banner p,.core-cta-banner a{position:relative;z-index:1}
.banner-orb{position:absolute;border-radius:50%;filter:blur(50px);opacity:.45;z-index:0}
.b-orb-1{width:340px;height:340px;right:-100px;top:-120px;background:radial-gradient(circle,#7DF0C8,transparent 65%)}
.b-orb-2{width:280px;height:280px;left:-80px;bottom:-120px;background:radial-gradient(circle,#F5DFAE,transparent 65%)}
.core-btn-white{transition:transform .25s ease,box-shadow .25s ease}
.core-btn-white:hover{transform:translateY(-2px) scale(1.02);box-shadow:0 16px 34px -12px rgba(0,0,0,.4)}

/* ---------- reveal ---------- */
.js .reveal{opacity:0;transform:translateY(18px);transition:opacity .6s ease,transform .6s ease}
.js .reveal.in{opacity:1;transform:none}
@media (prefers-reduced-motion:reduce){
  html{scroll-behavior:auto}
  .js .reveal{opacity:1;transform:none;transition:none}
}

/* ---------- responsive ---------- */
@media (max-width:900px){
  .core-steps{grid-template-columns:1fr 1fr}
  .core-step:not(:last-child)::after{display:none}
}
@media (max-width:980px){
  .nav-links{display:none}
  .hamburger{display:flex}
  .nav,.subbar{transition:transform .35s ease,box-shadow .32s ease}
  body.head-hidden .nav{transform:translateY(-101%)}
  body.head-hidden .subbar{transform:translateY(calc(-100% - var(--nav-h)))}
  .mobile-panel{display:block;max-height:0;overflow:hidden;padding:0 28px;
    transition:max-height .4s ease,opacity .3s ease,padding .4s ease;opacity:0}
  .nav.menu-open .mobile-panel{max-height:75vh;opacity:1;overflow-y:auto;padding-bottom:12px}
  .mp-inner{max-width:1060px;margin:12px auto 0;padding:14px;
    background:rgba(255,255,255,.96);
    -webkit-backdrop-filter:blur(16px);backdrop-filter:blur(16px);
    border:1px solid var(--line-soft);border-radius:20px;
    box-shadow:0 8px 20px -8px rgba(20,36,55,.10);
    display:grid;gap:2px}
  .mp-inner a,.mp-sub-toggle{display:flex;align-items:center;justify-content:space-between;gap:10px;
    padding:13px 15px;border-radius:14px;font-size:15px;font-weight:500;color:var(--ink);
    background:none;border:0;cursor:pointer;width:100%;text-align:left;text-decoration:none}
  .mp-inner a:hover,.mp-sub-toggle:hover{background:rgba(20,122,86,.07);color:var(--green-deep)}
  .mp-sub{max-height:0;overflow:hidden;transition:max-height .35s ease;padding-left:12px}
  .mp-sub-toggle[aria-expanded="true"] + .mp-sub{max-height:200px}
  .mp-sub a{font-size:14px;color:var(--ink-3)}
  .mp-login{background:var(--navy);color:#fff!important;font-weight:600!important;
    justify-content:center!important;margin-top:8px}
}
@media (max-width:760px){
  .core-hero{padding:52px 0 60px}
  .core-float-card{position:static;margin-top:14px;animation:none}
  .core-student-grid{grid-template-columns:1fr}
  .core-tr{grid-template-columns:1fr;gap:4px}
  .core-q-foot{align-items:flex-start;flex-direction:column}
  .hero-chip{display:none}
  .core-step:not(:last-child)::after{display:none}
}
@media (max-width:520px){
  body{font-size:16px}
  .core-wrap{padding:0 20px}
  .nav-inner{padding:0 20px}
  .mobile-panel{padding:0 20px}
  .subbar-inner{padding:0 20px}
  .core-steps{grid-template-columns:1fr}
  .core-cta-row .core-btn{width:100%;justify-content:center}
}
@media (prefers-reduced-motion:reduce){
  .core-hero-figure img,.hero-sheen,.hero-chip,.floaty,.orb,.banner-orb,.core-cta-banner::after,.shimmer-text,.btn-shine::after,.core-step:not(:last-child)::after{animation:none !important}
  .core-hero-figure img{transform:none}
}

/* ™ until the UKIPO certificate lands; own metrics, not ®'s kerning */
.brand-tm{font-size:11px;margin-left:-9px;letter-spacing:0;position:relative;top:-5px}