/* Subject detail pages — designer text effects (frontend/css/subject-pages.css) */
:root{--sj-a:#00587E;--sj-b:#F39200;--sj-c:#0E7FB8;--sj-ink:#0A2644;--sj-mute:#41576A;--sj-card:rgba(255,255,255,.78);--sj-line:rgba(10,38,68,.12);--sj-soft:rgba(0,88,126,.07)}
html.sj-dark{--sj-a:#5CC8FF;--sj-b:#FFB547;--sj-c:#9BE7FF;--sj-ink:#FFFFFF;--sj-mute:rgba(255,255,255,.74);--sj-card:rgba(255,255,255,.05);--sj-line:rgba(255,255,255,.12);--sj-soft:rgba(92,200,255,.08)}
@keyframes sjFlow{to{background-position:300% 0}}
@keyframes sjBlink{50%{opacity:0}}
@keyframes sjFloat{0%,100%{transform:translateY(0)}50%{transform:translateY(-10px)}}
@keyframes sjSpin{to{transform:rotate(360deg)}}
@keyframes sjShine{from{background-position:-200% 0}to{background-position:200% 0}}
.sj-grad{background:linear-gradient(90deg,var(--sj-a),var(--sj-b),var(--sj-c),var(--sj-a));background-size:300% 100%;-webkit-background-clip:text;background-clip:text;color:transparent!important;-webkit-text-fill-color:transparent;animation:sjFlow 9s linear infinite}
.sj-mark{position:relative;white-space:nowrap;z-index:0}
.sj-mark:after{content:"";position:absolute;left:-2px;right:-2px;bottom:.08em;height:.36em;background:linear-gradient(90deg,rgba(243,146,0,.45),rgba(243,146,0,.2));border-radius:4px;z-index:-1;transform:scaleX(0);transform-origin:left;transition:transform 1.1s cubic-bezier(.2,.8,.2,1) .25s}
.sj-mark.in:after{transform:scaleX(1)}
.sj-typeline{margin-top:14px;font-weight:600;color:rgba(255,255,255,.9);font-size:1.05rem}
.sj-type{background:linear-gradient(90deg,#FFD27A,#F39200,#FFB547);-webkit-background-clip:text;background-clip:text;color:transparent;-webkit-text-fill-color:transparent;font-weight:800}
.sj-caret{display:inline-block;width:2px;height:1.1em;background:#F39200;margin-left:3px;vertical-align:-.15em;animation:sjBlink 1s steps(1) infinite}
.sj-kick{display:block;font-size:.78rem;font-weight:800;letter-spacing:.18em;text-transform:uppercase;color:var(--sj-b);margin-bottom:10px}
.sj-h2{font-size:clamp(1.6rem,3.2vw,2.35rem);line-height:1.2;margin:0 0 14px}
.sj-sec-head{text-align:center;max-width:760px;margin:0 auto}
.sj-sec-head p{color:var(--sj-mute)}
/* visual */
.sj-visual{position:relative;display:grid;place-items:center;min-height:360px}
.sj-ring{position:absolute;width:min(360px,80vw);aspect-ratio:1;border-radius:50%;border:2px dashed rgba(243,146,0,.45);animation:sjSpin 40s linear infinite}
.sj-ring.r2{width:min(290px,64vw);border:2px solid rgba(0,88,126,.18);border-top-color:var(--sj-a);animation-duration:14s}
.sj-orb{position:relative;width:min(230px,52vw);aspect-ratio:1;border-radius:34px;background:#fff;box-shadow:0 30px 60px -28px rgba(10,38,68,.55);display:grid;place-items:center;overflow:hidden;animation:sjFloat 6s ease-in-out infinite}
.sj-orb img{width:100%;height:100%;object-fit:cover}
.sj-float{position:absolute;background:var(--sj-card);backdrop-filter:blur(6px);border:1px solid var(--sj-line);color:var(--sj-ink);font-weight:700;font-size:.82rem;padding:8px 13px;border-radius:30px;box-shadow:0 12px 26px -16px rgba(10,38,68,.5);animation:sjFloat 5s ease-in-out infinite;white-space:nowrap}
.sj-float b{color:var(--sj-b)}
.sj-float.f1{top:8%;left:2%}.sj-float.f2{top:18%;right:0;animation-delay:-1.6s}.sj-float.f3{bottom:12%;left:6%;animation-delay:-3s}.sj-float.f4{bottom:4%;right:8%;animation-delay:-2.2s}
/* stats */
.sj-stats{display:grid;grid-template-columns:repeat(4,1fr);gap:16px;margin-top:10px}
.sj-stat{background:var(--sj-card);border:1px solid var(--sj-line);border-radius:18px;padding:22px 18px;text-align:center;position:relative;overflow:hidden}
.sj-stat:before{content:"";position:absolute;inset:0 0 auto;height:3px;background:linear-gradient(90deg,var(--sj-a),var(--sj-b))}
.sj-num{font-size:clamp(2.2rem,4.5vw,3.2rem);font-weight:800;line-height:1;background:linear-gradient(135deg,var(--sj-a),var(--sj-b));-webkit-background-clip:text;background-clip:text;color:transparent;-webkit-text-fill-color:transparent}
.sj-stat span{display:block;margin-top:8px;color:var(--sj-mute);font-weight:600;font-size:.9rem}
/* areas */
.sj-areas{display:grid;grid-template-columns:repeat(3,1fr);gap:18px;margin-top:40px}
.sj-area{position:relative;background:var(--sj-card);border:1px solid var(--sj-line);border-radius:18px;padding:24px 22px 22px;transition:transform .25s,box-shadow .25s,border-color .25s;overflow:hidden}
.sj-area:hover{transform:translateY(-5px);border-color:rgba(243,146,0,.55);box-shadow:0 22px 40px -26px rgba(10,38,68,.55)}
.sj-area .n{position:absolute;right:14px;top:6px;font-size:3.2rem;font-weight:800;line-height:1;color:transparent;-webkit-text-stroke:1.5px rgba(243,146,0,.35);transition:.3s}
.sj-area:hover .n{-webkit-text-stroke-color:var(--sj-b)}
.sj-area h3{margin:0 0 8px;font-size:1.06rem;color:var(--sj-ink);padding-right:52px}
.sj-area p{margin:0;color:var(--sj-mute);font-size:.93rem;line-height:1.55}
.sj-area:after{content:"";position:absolute;left:0;bottom:0;height:3px;width:0;background:linear-gradient(90deg,var(--sj-a),var(--sj-b));transition:width .35s}
.sj-area:hover:after{width:100%}
/* methods + software */
.sj-two{display:grid;grid-template-columns:1.25fr 1fr;gap:34px;align-items:start;margin-top:36px}
.sj-panel{background:var(--sj-card);border:1px solid var(--sj-line);border-radius:20px;padding:26px}
.sj-panel h3{margin:0 0 14px;color:var(--sj-ink)}
.sj-checks{list-style:none;margin:0;padding:0;display:grid;grid-template-columns:1fr 1fr;gap:10px 18px}
.sj-checks li{position:relative;padding-left:28px;color:var(--sj-mute);font-size:.94rem;line-height:1.45}
.sj-checks li:before{content:"";position:absolute;left:0;top:2px;width:18px;height:18px;border-radius:6px;background:linear-gradient(135deg,var(--sj-a),var(--sj-b))}
.sj-checks li:after{content:"";position:absolute;left:6px;top:6px;width:6px;height:9px;border:solid #fff;border-width:0 2px 2px 0;transform:rotate(45deg)}
.sj-soft{display:flex;flex-wrap:wrap;gap:9px}
.sj-soft span{padding:8px 14px;border-radius:30px;font-weight:700;font-size:.86rem;color:var(--sj-ink);border:1px solid var(--sj-line);background:linear-gradient(110deg,var(--sj-soft) 40%,rgba(243,146,0,.22) 50%,var(--sj-soft) 60%);background-size:200% 100%;animation:sjShine 6s linear infinite}
.sj-soft span:nth-child(3n){animation-delay:-2s}.sj-soft span:nth-child(3n+1){animation-delay:-4s}
/* topics */
.sj-topics{display:grid;grid-template-columns:1fr 1fr;gap:14px;margin-top:36px;counter-reset:t}
.sj-topic{counter-increment:t;display:flex;gap:14px;align-items:flex-start;background:var(--sj-card);border:1px solid var(--sj-line);border-left:4px solid var(--sj-b);border-radius:14px;padding:16px 18px;color:var(--sj-ink);font-weight:600;line-height:1.45}
.sj-topic:before{content:counter(t,decimal-leading-zero);font-weight:800;color:var(--sj-b);min-width:28px}
/* process timeline */
.sj-steps{display:grid;grid-template-columns:repeat(6,1fr);gap:14px;margin-top:40px;position:relative}
.sj-steps:before{content:"";position:absolute;left:6%;right:6%;top:27px;height:2px;background:linear-gradient(90deg,var(--sj-a),var(--sj-b));opacity:.5}
.sj-step{position:relative;text-align:center;padding:0 4px}
.sj-step i{position:relative;z-index:1;display:grid;place-items:center;width:56px;height:56px;margin:0 auto 14px;border-radius:50%;font-style:normal;font-weight:800;font-size:1.1rem;color:#fff;background:linear-gradient(135deg,var(--sj-a),var(--sj-b));box-shadow:0 0 0 6px var(--sj-soft),0 12px 24px -12px rgba(10,38,68,.6)}
.sj-step h4{margin:0 0 6px;color:var(--sj-ink);font-size:.98rem}
.sj-step p{margin:0;color:var(--sj-mute);font-size:.86rem;line-height:1.5}
/* others */
.sj-others{display:grid;grid-template-columns:repeat(4,1fr);gap:14px;margin-top:34px}
.sj-other{display:flex;align-items:center;gap:12px;padding:12px 14px;border-radius:14px;background:var(--sj-card);border:1px solid var(--sj-line);color:var(--sj-ink);font-weight:700;font-size:.9rem;text-decoration:none;transition:.2s}
.sj-other img{width:44px;height:44px;border-radius:10px;background:#fff;flex:0 0 auto}
.sj-other:hover{transform:translateY(-3px);border-color:var(--sj-b)}
.sj-ethic{display:flex;gap:16px;align-items:flex-start}
.sj-ethic svg{flex:0 0 40px;width:40px;height:40px;color:var(--sj-b)}
@media(max-width:980px){.sj-areas{grid-template-columns:1fr 1fr}.sj-two{grid-template-columns:1fr}.sj-steps{grid-template-columns:repeat(3,1fr);row-gap:28px}.sj-steps:before{display:none}.sj-others{grid-template-columns:1fr 1fr}}
@media(max-width:640px){.sj-areas,.sj-topics,.sj-checks{grid-template-columns:1fr}.sj-stats{grid-template-columns:1fr 1fr}.sj-steps{grid-template-columns:1fr 1fr}.sj-visual{min-height:300px}.sj-float{font-size:.74rem}.sj-mark{white-space:normal}}
@media(prefers-reduced-motion:reduce){.sj-grad,.sj-ring,.sj-orb,.sj-float,.sj-soft span,.sj-caret{animation:none!important}.sj-mark:after{transition:none}}
/* links on the /subjects cards */
.cat3d{position:relative}
.cat3d .sj-card-link{display:inline-flex;align-items:center;gap:6px;margin-top:12px;font-weight:700;font-size:.9rem;color:var(--sj-b);text-decoration:none}
.cat3d .sj-card-link:after{content:"";position:absolute;inset:0;border-radius:inherit}
.cat3d .sj-card-link span{transition:transform .2s}.cat3d:hover .sj-card-link span{transform:translateX(4px)}