/* OmanScience design layer — loaded after app.css. Colours come from the tokens in app.css (so dark mode follows automatically).
   Patterns borrowed from popular multipurpose themes (Astra / Kadence / Divi style): search-first hero, bento feature grid,
   stat counters, carousels, glass header, rounded inputs with focus rings, pill buttons, scroll-reveal and micro-interactions. */

:root{
  --on-brand:#fff;--brand-grad:linear-gradient(135deg,var(--green),var(--green2));--gold-grad:linear-gradient(135deg,#b9791a,var(--gold));
  --soft:color-mix(in srgb,var(--green) 6%,var(--surface));--soft-2:color-mix(in srgb,var(--green) 11%,var(--surface));
  --ring:0 0 0 4px color-mix(in srgb,var(--green) 22%,transparent);
  --sh-sm:0 1px 2px rgba(16,42,42,.06),0 4px 14px rgba(16,42,42,.05);--sh-md:0 2px 4px rgba(16,42,42,.05),0 14px 34px rgba(16,42,42,.09);--sh-lg:0 4px 8px rgba(16,42,42,.05),0 26px 60px rgba(16,42,42,.14);
  --r-sm:10px;--r-md:14px;--r-lg:22px;--ease:cubic-bezier(.2,.7,.2,1);
}
html[data-theme="dark"]{--on-brand:#062a24;--sh-sm:0 1px 2px rgba(0,0,0,.4),0 4px 14px rgba(0,0,0,.25);--sh-md:0 2px 4px rgba(0,0,0,.4),0 14px 34px rgba(0,0,0,.35);--sh-lg:0 4px 8px rgba(0,0,0,.4),0 26px 60px rgba(0,0,0,.5)}

/* ---------- foundation ---------- */
html{scroll-padding-top:90px}
body{-webkit-font-smoothing:antialiased;text-rendering:optimizeLegibility}
::selection{background:color-mix(in srgb,var(--gold) 45%,transparent);color:var(--ink)}
:focus-visible{outline:2px solid var(--gold);outline-offset:2px}
h1,h2,h3,h4{letter-spacing:-.015em}
[dir="rtl"] h1,[dir="rtl"] h2,[dir="rtl"] h3,[dir="rtl"] h4{letter-spacing:0}
.container{width:min(1200px,calc(100% - 40px))}
.section{padding-top:84px;padding-bottom:84px}
.section-head{align-items:flex-end}
.section-head h2{font-size:clamp(1.6rem,3.2vw,2.3rem);line-height:1.2}
.section-head>a,.link-arrow{display:inline-flex;align-items:center;gap:6px;font-weight:700;white-space:nowrap}
.section-head>a::after,.link-arrow::after{content:"→";transition:transform .2s var(--ease)}
[dir="rtl"] .section-head>a::after,[dir="rtl"] .link-arrow::after{content:"←"}
.section-head>a:hover::after,.link-arrow:hover::after{transform:translateX(4px)}
[dir="rtl"] .section-head>a:hover::after,[dir="rtl"] .link-arrow:hover::after{transform:translateX(-4px)}
.kicker{display:inline-flex;align-items:center;gap:8px;padding:5px 13px;border-radius:999px;background:var(--soft-2);color:var(--green);font-size:.78rem;font-weight:800;letter-spacing:.07em;text-transform:uppercase}
[dir="rtl"] .kicker{letter-spacing:0}
.section-intro{max-width:720px;margin:0 auto 46px;text-align:center}
.section-intro h2{font-size:clamp(1.8rem,3.6vw,2.7rem);line-height:1.18;margin:.4em 0 .3em}
.section-intro p{color:var(--muted);font-size:1.08rem;margin:0}

/* ---------- header ---------- */
.site-header{background:color-mix(in srgb,var(--paper) 78%,transparent);border-bottom:1px solid color-mix(in srgb,var(--line) 70%,transparent);backdrop-filter:saturate(1.6) blur(16px);-webkit-backdrop-filter:saturate(1.6) blur(16px)}
.site-header.scrolled{box-shadow:0 8px 30px rgba(16,42,42,.08);background:color-mix(in srgb,var(--paper) 90%,transparent)}
.brand-mark{box-shadow:0 6px 16px color-mix(in srgb,var(--green) 35%,transparent);transition:transform .25s var(--ease)}.brand:hover .brand-mark{transform:rotate(-6deg) scale(1.05)}
.nav-links a{transition:background .18s,color .18s,transform .18s}
.nav-links a:active{transform:scale(.97)}
.nav-signin{font-weight:700}

/* ---------- buttons ---------- */
.button,.search-bar button,.filter-bar button{background:var(--brand-grad);color:var(--on-brand);border-radius:12px;padding:12px 22px;font-weight:750;box-shadow:0 8px 18px color-mix(in srgb,var(--green) 28%,transparent);transition:transform .18s var(--ease),box-shadow .18s var(--ease),filter .18s;position:relative}
.button:hover,.search-bar button:hover,.filter-bar button:hover{background:var(--brand-grad);color:var(--on-brand);transform:translateY(-2px);box-shadow:0 12px 24px color-mix(in srgb,var(--green) 34%,transparent);filter:brightness(1.05)}
.button:active,.search-bar button:active,.filter-bar button:active{transform:translateY(0);box-shadow:0 4px 10px color-mix(in srgb,var(--green) 25%,transparent)}
.button.secondary{background:var(--soft-2);color:var(--green);box-shadow:none}.button.secondary:hover{background:var(--soft-2);color:var(--green);box-shadow:var(--sh-sm)}
.button.light{background:#fff;color:#065a4d;box-shadow:0 8px 22px rgba(0,0,0,.18)}.button.light:hover{background:#fff;color:#065a4d}
.button.ghost{background:transparent;color:inherit;border:1.5px solid currentColor;box-shadow:none}.button.ghost:hover{background:color-mix(in srgb,currentColor 10%,transparent);color:inherit;box-shadow:none}
.button.outline{background:transparent;color:var(--green);border:1.5px solid color-mix(in srgb,var(--green) 45%,var(--line));box-shadow:none}.button.outline:hover{background:var(--soft);color:var(--green);box-shadow:none}
.button.lg{padding:15px 28px;font-size:1.05rem;border-radius:14px}
.button.small{padding:7px 14px;box-shadow:none}
.button.danger{background:var(--danger);box-shadow:none}.button.danger:hover{background:var(--danger);filter:brightness(.92)}
.button[disabled],.button:disabled{opacity:.55;cursor:not-allowed;transform:none;box-shadow:none}

/* ---------- inputs, forms, search ---------- */
input,select,textarea{min-height:46px;border:1.5px solid var(--line);border-radius:12px;background:var(--surface);color:var(--ink);padding:11px 15px;transition:border-color .18s,box-shadow .18s,background .18s}
input:hover,select:hover,textarea:hover{border-color:color-mix(in srgb,var(--green) 40%,var(--line))}
input:focus,select:focus,textarea:focus{outline:0;border-color:var(--green);box-shadow:var(--ring)}
input::placeholder,textarea::placeholder{color:color-mix(in srgb,var(--muted) 80%,transparent)}
input[type=checkbox],input[type=radio]{min-height:0;accent-color:var(--green);box-shadow:none}
input[type=range]{min-height:0;padding:0;accent-color:var(--green)}
input[type=color]{padding:4px}
input[type=file]{padding:8px;cursor:pointer}input[type=file]::file-selector-button{margin-inline-end:12px;padding:8px 14px;border:0;border-radius:9px;background:var(--soft-2);color:var(--green);font:inherit;font-weight:700;cursor:pointer;transition:background .15s}input[type=file]::file-selector-button:hover{background:color-mix(in srgb,var(--green) 18%,var(--surface))}
select{appearance:none;-webkit-appearance:none;padding-inline-end:40px;cursor:pointer;background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%23637574' stroke-width='2.4' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpath d='m6 9 6 6 6-6'/%3E%3C/svg%3E");background-repeat:no-repeat;background-size:16px;background-position:right 14px center}
[dir="rtl"] select{background-position:left 14px center}
select[multiple]{background-image:none;padding-inline-end:15px}
input:user-invalid,textarea:user-invalid,select:user-invalid{border-color:var(--danger)}
input:user-invalid:focus,textarea:user-invalid:focus{box-shadow:0 0 0 4px color-mix(in srgb,var(--danger) 20%,transparent)}
input:disabled,select:disabled,textarea:disabled{opacity:.6;cursor:not-allowed;background:var(--soft)}
label{font-weight:650;font-size:.9rem;color:var(--ink)}
label>input,label>select,label>textarea{font-weight:400}
.auth-card{position:relative;border-radius:var(--r-lg);box-shadow:var(--sh-lg);overflow:hidden}
.auth-card::before{content:"";position:absolute;inset:0 0 auto 0;height:5px;background:var(--brand-grad)}
.auth-page,.ai-page{background:radial-gradient(circle at 12% 8%,color-mix(in srgb,var(--gold) 16%,transparent),transparent 34%),radial-gradient(circle at 90% 90%,color-mix(in srgb,var(--green2) 14%,transparent),transparent 36%)}
.alert{border-radius:var(--r-md);border:1px solid color-mix(in srgb,currentColor 18%,transparent);font-weight:600}

.search-bar{align-items:center;gap:6px;padding:7px;border:1.5px solid var(--line);border-radius:999px;background:var(--surface);box-shadow:var(--sh-md);transition:box-shadow .2s,border-color .2s}
.search-bar:focus-within{border-color:var(--green);box-shadow:var(--ring),var(--sh-md)}
.search-bar input{min-height:48px;border:0;border-radius:999px;background:transparent;padding-inline:20px;box-shadow:none}
.search-bar input:focus{box-shadow:none}
.search-bar button{border-radius:999px;padding:12px 28px;box-shadow:none}
.search-bar .search-ico{display:grid;place-items:center;width:44px;color:var(--green)}.search-bar .search-ico svg{width:22px;height:22px;fill:none;stroke:currentColor;stroke-width:2;stroke-linecap:round}
.filter-bar{padding:14px;border:1px solid var(--line);border-radius:var(--r-md);background:var(--surface);box-shadow:var(--sh-sm)}
.filter-bar button{box-shadow:none}

/* ---------- cards, chips, tags ---------- */
.card,.panel{border-radius:var(--r-lg);box-shadow:var(--sh-sm);transition:transform .25s var(--ease),box-shadow .25s var(--ease),border-color .25s}
.card{position:relative}
.card:hover{transform:translateY(-4px);box-shadow:var(--sh-md);border-color:color-mix(in srgb,var(--green) 30%,var(--line))}
.card h3 a,.card h2 a{color:var(--ink)}.card h3 a:hover,.card h2 a:hover{color:var(--green)}
.card h3 a::after,.card h2 a::after,a.stretch::after{content:"";position:absolute;inset:0;border-radius:inherit}
.card.accent{border-top:0;position:relative;overflow:hidden}.card.accent::before{content:"";position:absolute;inset:0 0 auto 0;height:5px;background:var(--gold-grad)}
.panel:hover{transform:none}
.chip,.tags span{transition:background .15s,transform .15s}
.chip:hover{transform:translateY(-1px)}
.tag,.date-badge,.result-type{font-weight:750}
.result{padding:22px 24px;margin-bottom:12px;border:1px solid var(--line);border-radius:var(--r-md);background:var(--surface);box-shadow:var(--sh-sm);transition:transform .2s var(--ease),box-shadow .2s,border-color .2s}
.result:hover{transform:translateY(-2px);box-shadow:var(--sh-md);border-color:color-mix(in srgb,var(--green) 28%,var(--line))}
.results-list{gap:0}
.pagination{align-items:center}
.pagination a{padding:9px 20px;border:1.5px solid var(--line);border-radius:999px;font-weight:700;background:var(--surface);transition:all .18s}
.pagination a:hover{border-color:var(--green);background:var(--soft)}
.empty,.notice{border-radius:var(--r-md);background:var(--soft)}
table{border-radius:var(--r-md)}
.metric{border-radius:var(--r-md);box-shadow:var(--sh-sm);transition:transform .2s var(--ease),box-shadow .2s}.metric:hover{transform:translateY(-2px);box-shadow:var(--sh-md)}
.price strong{font-size:2.2rem;letter-spacing:-.03em;color:var(--green)}
.price{margin:12px 0}

/* ---------- page headers ---------- */
.page-head,.article-head{position:relative;overflow:hidden;padding:76px 0 58px;background:linear-gradient(140deg,var(--soft-2),var(--surface) 70%)}
.page-head::before,.article-head::before{content:"";position:absolute;inset-block-start:-120px;inset-inline-end:-80px;width:380px;height:380px;border-radius:50%;background:radial-gradient(circle,color-mix(in srgb,var(--green2) 22%,transparent),transparent 68%);pointer-events:none}
.page-head::after{content:"";position:absolute;inset-block-end:-70px;inset-inline-start:8%;width:240px;height:240px;border-radius:50%;background:radial-gradient(circle,color-mix(in srgb,var(--gold) 20%,transparent),transparent 70%);pointer-events:none}
.page-head>.container,.article-head>.container{position:relative;z-index:1}
.eyebrow{display:inline-flex;align-items:center;gap:8px}
.eyebrow::before{content:"";width:22px;height:2px;border-radius:2px;background:var(--gold)}

/* ---------- scroll reveal & motion ---------- */
.js [data-reveal]{opacity:0;transform:translateY(26px);transition:opacity .7s var(--ease),transform .7s var(--ease);transition-delay:var(--d,0s)}
.js [data-reveal="left"]{transform:translateX(-30px)}.js [data-reveal="right"]{transform:translateX(30px)}.js [data-reveal="zoom"]{transform:scale(.94)}
[dir="rtl"].js [data-reveal="left"],.js [dir="rtl"] [data-reveal="left"]{transform:translateX(30px)}.js [dir="rtl"] [data-reveal="right"]{transform:translateX(-30px)}
.js [data-reveal].in{opacity:1;transform:none}
@keyframes floaty{0%,100%{transform:translateY(0)}50%{transform:translateY(-14px)}}
@keyframes drift{0%,100%{transform:translate(0,0) scale(1)}50%{transform:translate(30px,-24px) scale(1.08)}}
@keyframes marquee{to{transform:translateX(calc(-50% - 9px))}}
@keyframes pulseDot{0%{box-shadow:0 0 0 0 color-mix(in srgb,var(--gold) 55%,transparent)}100%{box-shadow:0 0 0 14px transparent}}
@keyframes typing{from{width:0}to{width:100%}}
@keyframes blink{50%{opacity:0}}
@keyframes slideIn{from{opacity:0;transform:translateY(14px) scale(.98)}to{opacity:1;transform:none}}

/* ---------- home: hero ---------- */
.hero{position:relative;isolation:isolate;padding:96px 0 90px;background:linear-gradient(160deg,var(--soft-2) 0%,var(--paper) 55%,color-mix(in srgb,var(--gold) 9%,var(--paper)) 100%)}
.hero::before{content:"";position:absolute;inset:0;z-index:-1;background-image:radial-gradient(color-mix(in srgb,var(--green) 16%,transparent) 1.2px,transparent 1.2px);background-size:26px 26px;-webkit-mask-image:radial-gradient(ellipse 70% 80% at 70% 30%,#000,transparent 75%);mask-image:radial-gradient(ellipse 70% 80% at 70% 30%,#000,transparent 75%)}
.hero .blob{position:absolute;z-index:-1;border-radius:50%;filter:blur(60px);opacity:.55;pointer-events:none;animation:drift 16s ease-in-out infinite}
.hero .blob.b1{width:380px;height:380px;inset-block-start:-120px;inset-inline-end:6%;background:color-mix(in srgb,var(--green2) 45%,transparent)}
.hero .blob.b2{width:300px;height:300px;inset-block-end:-120px;inset-inline-start:4%;background:color-mix(in srgb,var(--gold) 40%,transparent);animation-delay:-6s}
.hero-grid{grid-template-columns:minmax(0,1.15fr) minmax(0,.85fr);gap:56px}
.hero h1{font-size:clamp(2.4rem,5.4vw,4.4rem);line-height:1.08;letter-spacing:-.035em;margin:.3em 0 .3em;font-weight:850}
[dir="rtl"] .hero h1{line-height:1.25}
.hero p.hero-lead{max-width:640px;color:var(--muted);font-size:1.18rem;margin:0}
.hero .eyebrow.pill{padding:6px 14px 6px 12px;border-radius:999px;background:var(--surface);border:1px solid var(--line);box-shadow:var(--sh-sm);text-transform:none;letter-spacing:0;font-size:.85rem}
.hero .eyebrow.pill::before{width:9px;height:9px;border-radius:50%;background:var(--gold);animation:pulseDot 2s infinite}
.hero .search-bar{max-width:700px;margin-top:32px}
.try-row{display:flex;flex-wrap:wrap;gap:8px;align-items:center;margin-top:16px;color:var(--muted);font-size:.9rem}
.try-row a{padding:5px 13px;border:1px solid var(--line);border-radius:999px;background:color-mix(in srgb,var(--surface) 80%,transparent);color:var(--ink);font-weight:600;font-size:.86rem;transition:all .15s}
.try-row a:hover{border-color:var(--green);color:var(--green);background:var(--surface);transform:translateY(-1px)}
.hero-links{display:flex;flex-wrap:wrap;gap:10px;margin-top:26px}
.hero-trust{display:flex;flex-wrap:wrap;gap:8px 22px;margin:26px 0 0;padding:0;list-style:none;color:var(--muted);font-size:.9rem;font-weight:600}
.hero-trust li{display:flex;align-items:center;gap:7px}.hero-trust svg{width:18px;height:18px;fill:none;stroke:var(--green);stroke-width:2.4;stroke-linecap:round;stroke-linejoin:round}

/* hero showcase (slides) */
.showcase{position:relative}
.showcase-stage{display:grid;position:relative}
.show-slide{grid-area:1/1;display:flex;flex-direction:column;gap:14px;padding:28px;border:1px solid var(--line);border-radius:26px;background:var(--surface);box-shadow:var(--sh-lg);opacity:0;visibility:hidden;transform:translateY(16px) scale(.98);transition:opacity .5s var(--ease),transform .5s var(--ease),visibility .5s}
.show-slide.is-active{opacity:1;visibility:visible;transform:none}
.show-ico{display:grid;place-items:center;width:54px;height:54px;border-radius:16px;background:var(--brand-grad);color:var(--on-brand);box-shadow:0 10px 22px color-mix(in srgb,var(--green) 32%,transparent)}.show-ico svg{width:28px;height:28px;fill:none;stroke:currentColor;stroke-width:1.8;stroke-linecap:round;stroke-linejoin:round}
.show-ico.gold{background:var(--gold-grad)}
.show-slide h3{font-size:1.4rem;margin:0}
.show-slide p{margin:0;color:var(--muted)}
.show-live{margin-top:auto;padding:14px 16px;border-radius:var(--r-md);background:var(--soft);border:1px dashed color-mix(in srgb,var(--green) 28%,var(--line));font-size:.92rem}
.show-live small{display:block;color:var(--muted);font-weight:700;text-transform:uppercase;letter-spacing:.06em;font-size:.7rem;margin-bottom:3px}
[dir="rtl"] .show-live small{letter-spacing:0}
.show-live a{font-weight:700;color:var(--ink)}.show-live a:hover{color:var(--green)}
.showcase-nav{display:flex;align-items:center;justify-content:space-between;margin-top:18px}
.dots{display:flex;gap:8px}.dots button{width:10px;height:10px;padding:0;min-height:0;border:0;border-radius:99px;background:color-mix(in srgb,var(--green) 25%,var(--line));cursor:pointer;transition:all .25s var(--ease)}.dots button[aria-current="true"]{width:30px;background:var(--green)}
.arrows{display:flex;gap:8px}
.arrow-btn{display:grid;place-items:center;width:42px;height:42px;min-height:0;padding:0;border:1.5px solid var(--line);border-radius:50%;background:var(--surface);color:var(--ink);cursor:pointer;transition:all .18s var(--ease);box-shadow:var(--sh-sm)}.arrow-btn:hover{border-color:var(--green);color:var(--green);transform:scale(1.07)}.arrow-btn:disabled{opacity:.4;cursor:default;transform:none}
.arrow-btn svg{width:18px;height:18px;fill:none;stroke:currentColor;stroke-width:2.2;stroke-linecap:round;stroke-linejoin:round}
[dir="rtl"] .arrow-btn svg{transform:scaleX(-1)}
.float-chip{position:absolute;display:flex;align-items:center;gap:8px;padding:9px 14px;border-radius:14px;background:var(--surface);border:1px solid var(--line);box-shadow:var(--sh-md);font-size:.82rem;font-weight:700;animation:floaty 6s ease-in-out infinite;z-index:2}
.float-chip svg{width:18px;height:18px;fill:none;stroke:var(--green);stroke-width:2;stroke-linecap:round;stroke-linejoin:round}
.float-chip.c1{inset-block-start:-18px;inset-inline-end:-10px}.float-chip.c2{inset-block-end:52px;inset-inline-start:-28px;animation-delay:-3s}

/* ---------- home: stats ---------- */
.stats{background:linear-gradient(135deg,#06322e,#0a4a42);position:relative;overflow:hidden}
.stats::before{content:"";position:absolute;inset:0;background:radial-gradient(circle at 15% 0%,rgba(0,150,127,.35),transparent 45%),radial-gradient(circle at 90% 100%,rgba(217,164,65,.22),transparent 40%)}
.stats-grid{position:relative;grid-template-columns:repeat(auto-fit,minmax(160px,1fr));padding:38px 0}
.stats-grid>div{padding:6px 14px}
.stats strong{font-size:clamp(2rem,4vw,2.9rem);line-height:1.1;color:#9af0d8;font-variant-numeric:tabular-nums;letter-spacing:-.02em}
.stats span{font-size:.92rem;opacity:.85;color:#e5f5f0}

/* ---------- home: features (bento) ---------- */
.bento{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:18px}
.feature{position:relative;display:flex;flex-direction:column;gap:10px;padding:26px;border:1px solid var(--line);border-radius:var(--r-lg);background:var(--surface);color:var(--ink);overflow:hidden;box-shadow:var(--sh-sm);transition:transform .3s var(--ease),box-shadow .3s var(--ease),border-color .3s}
.feature::after{content:"";position:absolute;inset-block-start:-60px;inset-inline-end:-60px;width:170px;height:170px;border-radius:50%;background:radial-gradient(circle,color-mix(in srgb,var(--green2) 18%,transparent),transparent 70%);transition:transform .5s var(--ease);pointer-events:none}
.feature:hover{transform:translateY(-6px);box-shadow:var(--sh-lg);border-color:color-mix(in srgb,var(--green) 35%,var(--line));color:var(--ink)}.feature:hover::after{transform:scale(1.7)}
.feature .f-ico{display:grid;place-items:center;width:50px;height:50px;border-radius:15px;background:var(--soft-2);color:var(--green);transition:all .3s var(--ease)}
.feature:hover .f-ico{background:var(--brand-grad);color:var(--on-brand);transform:rotate(-6deg) scale(1.06)}
.feature .f-ico svg{width:26px;height:26px;fill:none;stroke:currentColor;stroke-width:1.8;stroke-linecap:round;stroke-linejoin:round}
.feature h3{margin:6px 0 0;font-size:1.18rem}
.feature p{margin:0;color:var(--muted);font-size:.96rem;line-height:1.65}
.feature .f-more{margin-top:auto;padding-top:8px;color:var(--green);font-weight:700;font-size:.9rem}.feature .f-more::after{content:" →"}[dir="rtl"] .feature .f-more::after{content:" ←"}
.feature.f-wide{grid-column:span 2}
.feature.f-hero{grid-column:span 2;grid-row:span 2;background:linear-gradient(150deg,#06322e,#0b5b4e);color:#fff;border-color:transparent;justify-content:flex-end;min-height:360px}
.feature.f-hero h3{font-size:1.7rem;color:#fff}.feature.f-hero p{color:#cfece4;font-size:1.04rem}.feature.f-hero .f-ico{background:rgba(255,255,255,.14);color:#9af0d8}.feature.f-hero .f-more{color:#9af0d8}
.feature.f-hero::after{width:320px;height:320px;background:radial-gradient(circle,rgba(217,164,65,.35),transparent 70%)}
.feature.f-hero:hover{color:#fff}
.feature.f-hero .f-mock{display:grid;gap:8px;margin-bottom:auto}.f-mock span{display:block;height:11px;border-radius:6px;background:rgba(255,255,255,.16)}.f-mock span:nth-child(1){width:88%}.f-mock span:nth-child(2){width:64%}.f-mock span:nth-child(3){width:78%;background:rgba(154,240,216,.35)}.f-mock span:nth-child(4){width:46%}

/* ---------- home: subjects ---------- */
.subject-cloud{display:flex;flex-wrap:wrap;gap:12px;justify-content:center}
.subject-pill{display:inline-flex;align-items:center;gap:10px;padding:11px 20px;border:1.5px solid var(--line);border-radius:999px;background:var(--surface);color:var(--ink);font-weight:700;box-shadow:var(--sh-sm);transition:all .2s var(--ease)}
.subject-pill small{padding:2px 9px;border-radius:99px;background:var(--soft-2);color:var(--green);font-weight:800;font-size:.76rem}
.subject-pill:hover{transform:translateY(-3px);border-color:var(--green);color:var(--green);box-shadow:var(--sh-md)}

/* ---------- carousel (featured research) ---------- */
.carousel{position:relative}
.car-track{display:flex;gap:20px;overflow-x:auto;scroll-snap-type:x mandatory;scroll-behavior:smooth;padding:6px 4px 26px;margin:-6px -4px 0;scrollbar-width:none;-webkit-overflow-scrolling:touch}.car-track::-webkit-scrollbar{display:none}
.car-track>.card{flex:0 0 min(380px,84%);scroll-snap-align:start;display:flex;flex-direction:column}
.car-track .card .excerpt{display:-webkit-box;-webkit-line-clamp:4;-webkit-box-orient:vertical;overflow:hidden}
.car-track .card .card-foot{margin-top:auto;padding-top:10px;color:var(--green);font-weight:700;font-size:.9rem}
.car-controls{display:flex;align-items:center;justify-content:space-between;gap:16px}
.car-bar{flex:1;height:4px;border-radius:4px;background:var(--line);overflow:hidden}.car-bar i{display:block;height:100%;width:20%;border-radius:4px;background:var(--brand-grad);transition:width .2s}

/* ---------- AI band ---------- */
.ai-band{position:relative;overflow:hidden;padding:96px 0;background:linear-gradient(125deg,#032b27,#08695a 70%,#0b7d69)}
.ai-band::before{content:"";position:absolute;inset:0;background:radial-gradient(circle at 85% 20%,rgba(217,164,65,.28),transparent 38%),radial-gradient(circle at 5% 100%,rgba(0,150,127,.45),transparent 42%)}
.ai-grid{position:relative;display:grid;grid-template-columns:minmax(0,1fr) minmax(0,.9fr);gap:56px;align-items:center}
.ai-band h2{line-height:1.15;margin:.3em 0 .35em}
.ai-band .btn-row{display:flex;flex-wrap:wrap;gap:12px;margin-top:26px}
.ai-points{list-style:none;margin:22px 0 0;padding:0;display:grid;gap:10px}.ai-points li{display:flex;gap:10px;align-items:flex-start;color:#d9f2ea}.ai-points svg{flex:none;width:20px;height:20px;margin-top:4px;fill:none;stroke:#92e6ce;stroke-width:2.4;stroke-linecap:round;stroke-linejoin:round}
.chat{border-radius:24px;background:rgba(255,255,255,.08);border:1px solid rgba(255,255,255,.18);backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px);padding:22px;box-shadow:0 30px 70px rgba(0,0,0,.3)}
.chat-top{display:flex;align-items:center;gap:8px;margin-bottom:16px;color:#bfe8dc;font-size:.8rem;font-weight:700}.chat-top i{width:10px;height:10px;border-radius:50%;background:#ff7b80}.chat-top i:nth-child(2){background:var(--gold)}.chat-top i:nth-child(3){background:#58d6a5}.chat-top span{margin-inline-start:auto}
.bubble{padding:13px 16px;border-radius:16px;font-size:.95rem;line-height:1.6;max-width:92%}
.bubble.q{background:rgba(255,255,255,.16);color:#fff;border-end-end-radius:4px;margin-inline-start:auto}
.bubble.a{margin-top:12px;background:#fff;color:#12312d;border-end-start-radius:4px}
.bubble.a cite{display:inline-grid;place-items:center;min-width:20px;height:20px;margin:0 2px;border-radius:6px;background:var(--soft-2);color:var(--green);font-style:normal;font-weight:800;font-size:.72rem;vertical-align:1px}
.chat-src{display:flex;flex-wrap:wrap;gap:8px;margin-top:12px}.chat-src span{padding:5px 11px;border-radius:99px;background:rgba(255,255,255,.12);color:#d9f2ea;font-size:.78rem;font-weight:600}
.typing{display:inline-flex;gap:4px;margin-top:12px}.typing i{width:7px;height:7px;border-radius:50%;background:#92e6ce;animation:floaty 1.1s ease-in-out infinite}.typing i:nth-child(2){animation-delay:.15s}.typing i:nth-child(3){animation-delay:.3s}

/* ---------- courses, events ---------- */
.course-card{padding:0;overflow:hidden;display:flex;flex-direction:column}
.course-card .c-top{display:flex;align-items:center;justify-content:space-between;padding:22px 24px;background:linear-gradient(135deg,var(--soft-2),var(--soft));border-bottom:1px solid var(--line)}
.course-card .c-top .show-ico{width:46px;height:46px;border-radius:14px}.course-card .c-top .show-ico svg{width:24px;height:24px}
.course-card .c-body{padding:22px 24px 26px;display:flex;flex-direction:column;flex:1}.course-card .c-body h3{margin-top:0}.course-card .c-body p{flex:1}
.course-card::before{display:none}
.event-list{display:grid;grid-template-columns:repeat(auto-fit,minmax(310px,1fr));gap:18px}
.event-card{position:relative;display:flex;gap:18px;align-items:flex-start;padding:22px;border:1px solid var(--line);border-radius:var(--r-lg);background:var(--surface);box-shadow:var(--sh-sm);transition:transform .25s var(--ease),box-shadow .25s}
.event-card:hover{transform:translateY(-4px);box-shadow:var(--sh-md)}
.ev-date{flex:none;display:grid;place-items:center;width:70px;padding:10px 0;border-radius:16px;background:var(--brand-grad);color:var(--on-brand);text-align:center;line-height:1.1;box-shadow:0 10px 20px color-mix(in srgb,var(--green) 28%,transparent)}.ev-date b{display:block;font-size:1.7rem}.ev-date small{font-size:.74rem;font-weight:800;letter-spacing:.06em;text-transform:uppercase;opacity:.92}
.event-card h3{margin:0 0 4px;font-size:1.1rem;line-height:1.4}.event-card h3 a{color:var(--ink)}.event-card h3 a::after{content:"";position:absolute;inset:0;border-radius:inherit}
.event-card p{margin:4px 0 0;color:var(--muted);font-size:.93rem}.ev-venue{display:flex;align-items:center;gap:6px;color:var(--muted);font-size:.84rem;font-weight:600}.ev-venue svg{width:15px;height:15px;fill:none;stroke:currentColor;stroke-width:2;stroke-linecap:round}

/* ---------- directory home, marquee ---------- */
.marquee{overflow:hidden;margin-bottom:46px;-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:18px;width:max-content;animation:marquee 46s linear infinite}.marquee:hover .marquee-track{animation-play-state:paused}
[dir="rtl"] .marquee-track{animation-direction:reverse}
.marquee a{display:inline-flex;align-items:center;gap:12px;padding:11px 22px 11px 12px;border:1px solid var(--line);border-radius:999px;background:var(--surface);color:var(--ink);font-weight:700;white-space:nowrap;box-shadow:var(--sh-sm);transition:all .2s}
.marquee a:hover{border-color:var(--green);color:var(--green)}
.marquee .m-mark{display:grid;place-items:center;width:34px;height:34px;border-radius:50%;background:var(--brand-grad);color:var(--on-brand);font-size:.85rem;font-weight:800}
.dir-home{gap:28px}.dir-home .browse-list{background:var(--surface);border-radius:var(--r-lg);box-shadow:var(--sh-sm)}

/* ---------- how it works ---------- */
.steps{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:22px;counter-reset:step;position:relative}
.steps::before{content:"";position:absolute;inset-block-start:34px;inset-inline:12% 12%;height:2px;background:repeating-linear-gradient(90deg,color-mix(in srgb,var(--green) 40%,transparent) 0 8px,transparent 8px 16px)}
.step{position:relative;text-align:center;padding:0 8px}
.step-no{position:relative;z-index:1;display:grid;place-items:center;width:68px;height:68px;margin:0 auto 18px;border-radius:50%;background:var(--surface);border:2px solid var(--green);color:var(--green);font-size:1.5rem;font-weight:850;box-shadow:0 0 0 8px var(--paper),var(--sh-md);transition:all .3s var(--ease)}
.step:hover .step-no{background:var(--brand-grad);color:var(--on-brand);transform:scale(1.08) rotate(-6deg)}
.step h3{margin:0 0 6px;font-size:1.12rem}.step p{margin:0;color:var(--muted);font-size:.95rem}

/* ---------- plans teaser ---------- */
.plans-home{display:grid;grid-template-columns:repeat(auto-fit,minmax(260px,1fr));gap:22px;align-items:stretch}
.plan{position:relative;display:flex;flex-direction:column;gap:12px;padding:30px;border:1.5px solid var(--line);border-radius:var(--r-lg);background:var(--surface);box-shadow:var(--sh-sm);transition:transform .3s var(--ease),box-shadow .3s}
.plan:hover{transform:translateY(-6px);box-shadow:var(--sh-lg)}
.plan.popular{border-color:var(--green);box-shadow:var(--sh-md);background:linear-gradient(180deg,var(--soft-2),var(--surface) 55%)}
.plan .badge{position:absolute;inset-block-start:-13px;inset-inline-start:26px;padding:4px 14px;border-radius:99px;background:var(--gold-grad);color:#fff;font-size:.82rem;font-weight:800;line-height:1.5}
.plan h3{margin:0;font-size:1.25rem}.plan .p-desc{margin:0;color:var(--muted);font-size:.94rem}
.plan .p-price{display:flex;align-items:baseline;gap:6px;margin:6px 0}.plan .p-price b{font-size:2.6rem;letter-spacing:-.03em;line-height:1}.plan .p-price span{color:var(--muted);font-weight:600}
.plan ul{list-style:none;margin:6px 0 10px;padding:0;display:grid;gap:9px}.plan li{display:flex;gap:9px;align-items:flex-start;font-size:.95rem}.plan li svg{flex:none;width:18px;height:18px;margin-top:5px;fill:none;stroke:var(--green);stroke-width:2.6;stroke-linecap:round;stroke-linejoin:round}
.plan .button{margin-top:auto}

/* ---------- FAQ ---------- */
.faq{max-width:860px;margin:0 auto;display:grid;gap:12px}
.faq details{border:1px solid var(--line);border-radius:var(--r-md);background:var(--surface);box-shadow:var(--sh-sm);transition:box-shadow .2s,border-color .2s}
.faq details[open]{border-color:color-mix(in srgb,var(--green) 40%,var(--line));box-shadow:var(--sh-md)}
.faq summary{display:flex;align-items:center;justify-content:space-between;gap:16px;padding:18px 22px;font-weight:750;font-size:1.04rem;cursor:pointer;list-style:none}.faq summary::-webkit-details-marker{display:none}
.faq summary::after{content:"+";flex:none;display:grid;place-items:center;width:30px;height:30px;border-radius:50%;background:var(--soft-2);color:var(--green);font-size:1.4rem;font-weight:500;line-height:1;transition:transform .25s var(--ease),background .2s}
.faq details[open] summary::after{content:"−";transform:rotate(180deg);background:var(--brand-grad);color:var(--on-brand)}
.faq details>div{padding:0 22px 20px;color:var(--muted);line-height:1.8;animation:slideIn .35s var(--ease)}
.faq summary:focus-visible{outline-offset:-2px;border-radius:var(--r-md)}

/* ---------- call to action ---------- */
.cta-band{padding:30px 0 90px}
.cta-box{position:relative;overflow:hidden;display:grid;grid-template-columns:minmax(0,1fr) auto;gap:30px;align-items:center;padding:54px 56px;border-radius:30px;background:linear-gradient(125deg,#04332e,#0a6f5d);color:#fff;box-shadow:var(--sh-lg)}
.cta-box::before{content:"";position:absolute;inset-block-start:-90px;inset-inline-end:-60px;width:320px;height:320px;border-radius:50%;background:radial-gradient(circle,rgba(217,164,65,.45),transparent 68%)}
.cta-box::after{content:"";position:absolute;inset-block-end:-120px;inset-inline-start:30%;width:340px;height:340px;border-radius:50%;background:radial-gradient(circle,rgba(0,150,127,.5),transparent 68%)}
.cta-box>*{position:relative;z-index:1}.cta-box h2{margin:0 0 8px;font-size:clamp(1.7rem,3.4vw,2.5rem);line-height:1.2}.cta-box p{margin:0;color:#cfece4;font-size:1.08rem;max-width:620px}
.cta-box .btn-row{display:flex;flex-wrap:wrap;gap:12px}

/* ---------- footer ---------- */
footer.site-footer,footer{position:relative;background:linear-gradient(180deg,#0b2523,#071a19);padding-top:70px}
footer.site-footer::before{content:"";position:absolute;inset:0 0 auto 0;height:3px;background:linear-gradient(90deg,var(--green),var(--gold),var(--green2))}
.footer-grid{grid-template-columns:1.6fr 1fr 1fr}
.footer-grid h3{color:#fff;font-size:1rem;margin:0 0 12px}
.footer-grid a{transition:color .15s,transform .15s}.footer-grid a:hover{color:#fff;transform:translateX(3px)}[dir="rtl"] .footer-grid a:hover{transform:translateX(-3px)}
.footer-grid .footer-about p{color:#9dbab4;max-width:380px}

/* back to top */
.to-top{position:fixed;inset-block-end:22px;inset-inline-end:22px;z-index:40;display:grid;place-items:center;width:46px;height:46px;min-height:0;padding:0;border:0;border-radius:50%;background:var(--brand-grad);color:var(--on-brand);box-shadow:var(--sh-md);cursor:pointer;opacity:0;visibility:hidden;transform:translateY(14px);transition:all .3s var(--ease)}
.to-top.show{opacity:1;visibility:visible;transform:none}.to-top:hover{transform:translateY(-3px)}
.to-top svg{width:20px;height:20px;fill:none;stroke:currentColor;stroke-width:2.4;stroke-linecap:round;stroke-linejoin:round}
.read-progress{position:fixed;inset:0 0 auto 0;height:3px;z-index:100;transform-origin:left;transform:scaleX(0);background:var(--brand-grad);pointer-events:none}[dir="rtl"] .read-progress{transform-origin:right}

/* ---------- responsive ---------- */
@media(max-width:1000px){
  .hero-grid,.ai-grid{grid-template-columns:1fr}.hero-grid{gap:44px}.showcase{max-width:560px}
  .bento{grid-template-columns:repeat(2,minmax(0,1fr))}.feature.f-hero{grid-column:span 2;grid-row:auto;min-height:300px}
  .steps{grid-template-columns:repeat(2,minmax(0,1fr));row-gap:34px}.steps::before{display:none}
  .cta-box{grid-template-columns:1fr;padding:40px 30px}
}
@media(max-width:640px){
  .section{padding-top:56px;padding-bottom:56px}
  .hero{padding:58px 0 56px}
  .hero .search-bar,.search-bar{display:flex;flex-wrap:wrap;align-items:center;border-radius:22px;padding:8px}.search-bar .search-ico{width:36px}.search-bar input{flex:1 1 0;min-width:0;min-height:50px;padding-inline:6px}.search-bar button{flex:1 1 100%;width:100%}
  .hero-links{flex-direction:column}.hero-links .button{width:100%}
  .bento{grid-template-columns:1fr}.feature.f-wide,.feature.f-hero{grid-column:auto}
  .steps{grid-template-columns:1fr}
  .float-chip{display:none}
  .event-list{grid-template-columns:1fr}
  .ai-band{padding:64px 0}
  .section-intro{margin-bottom:32px}
  .car-track>.card{flex-basis:86%}
  .cta-box{padding:34px 22px;border-radius:22px}
}

/* no-motion preference & print */
@media(prefers-reduced-motion:reduce){
  *,*::before,*::after{animation-duration:.001ms!important;animation-iteration-count:1!important;transition-duration:.001ms!important;scroll-behavior:auto!important}
  .js [data-reveal]{opacity:1;transform:none}
  .marquee-track{animation:none}
}
@media print{.site-header,footer,.to-top,.read-progress,.nav-toggle{display:none!important}.js [data-reveal]{opacity:1;transform:none}}

/* ---------- dark adjustments ---------- */
html[data-theme="dark"] .hero{background:linear-gradient(160deg,#10231f 0%,var(--paper) 55%,#1b1a12 100%)}
html[data-theme="dark"] .page-head,html[data-theme="dark"] .article-head{background:linear-gradient(140deg,#12231e,var(--surface) 70%)}
html[data-theme="dark"] .button.light{background:#e9f7f2;color:#06352e}
html[data-theme="dark"] .try-row a{background:color-mix(in srgb,var(--surface) 70%,transparent)}
html[data-theme="dark"] .search-bar,html[data-theme="dark"] .filter-bar,html[data-theme="dark"] .result,html[data-theme="dark"] .event-card,html[data-theme="dark"] .feature{background:var(--surface)}
html[data-theme="dark"] .feature.f-hero{background:linear-gradient(150deg,#06322e,#0b5b4e)}
html[data-theme="dark"] .bubble.a{background:#e9f7f2}
html[data-theme="dark"] select{background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%2398b0ab' stroke-width='2.4' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpath d='m6 9 6 6 6-6'/%3E%3C/svg%3E")}
html[data-theme="dark"] footer.site-footer,html[data-theme="dark"] footer{background:linear-gradient(180deg,#0a1a19,#061110)}
html[data-theme="dark"] .plan.popular{background:linear-gradient(180deg,#14302a,var(--surface) 55%)}
html[data-theme="dark"] .step-no{box-shadow:0 0 0 8px var(--paper),var(--sh-md)}

/* header: never wrap menu labels; tighten on mid-size screens */
.nav-links a,.nav-signin,.lang-pill,.nav-actions .button{white-space:nowrap}
.nav-item>a{white-space:nowrap}
@media(max-width:1260px) and (min-width:901px){.nav-links a{padding:9px 9px;font-size:.88rem}.main-nav{margin-inline-start:14px;gap:12px}.nav-actions{gap:8px}.nav-item>a{padding-inline-end:2px}}