/* ===== Rhino Investments Limited — design system =====
   Concept "Strata": layered earth lines, soft organic shapes, warm stone + ink.
   Logical properties everywhere so Arabic (RTL) is a true layout, not a mirror hack. */
:root{
  --f-d:'Fraunces',Georgia,serif;
  --f-b:'Manrope',system-ui,-apple-system,'Segoe UI',sans-serif;
  --ease:cubic-bezier(.22,1,.36,1);
  --dir:1;
  --r:28px;
  --wrap:1240px;
}
[dir=rtl]{--dir:-1}
:root[data-theme=dark]{
  --bg:#0b0e13;--bg2:#10141b;--bg3:#161b24;--card:rgba(255,255,255,.04);
  --ink:#f4f0e6;--mut:#a9a597;--dim:#6f6d63;
  --accent:#e6b566;--accent-ink:#1a1305;--blue:#6f93ff;--line:rgba(244,240,230,.11);
  --shadow:0 30px 70px -30px rgba(0,0,0,.7);--logo:brightness(0) invert(1);--strata:230,181,102;
}
:root[data-theme=light]{
  --bg:#f6f2e9;--bg2:#ece6d8;--bg3:#e3dccb;--card:rgba(255,255,255,.6);
  --ink:#14181f;--mut:#58554c;--dim:#8d8a7e;
  --accent:#b27a22;--accent-ink:#fff;--blue:#1e3fa0;--line:rgba(20,24,31,.13);
  --shadow:0 30px 60px -30px rgba(60,40,10,.3);--logo:none;--strata:178,122,34;
}
*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth;scroll-padding-top:90px;overflow-x:clip}
body{background:var(--bg);color:var(--ink);font-family:var(--f-b);line-height:1.65;-webkit-font-smoothing:antialiased;transition:background .5s,color .5s;overflow-x:clip}
:lang(ar){--f-d:'Noto Sans Arabic',system-ui,sans-serif;--f-b:'Noto Sans Arabic',system-ui,sans-serif}
:lang(zh){--f-d:'Noto Sans SC','PingFang SC','Microsoft YaHei',sans-serif;--f-b:'Noto Sans SC','PingFang SC','Microsoft YaHei',sans-serif}
:lang(ja){--f-d:'Noto Sans JP','Hiragino Sans','Yu Gothic',sans-serif;--f-b:'Noto Sans JP','Hiragino Sans','Yu Gothic',sans-serif}
:lang(ko){--f-d:'Noto Sans KR','Malgun Gothic',sans-serif;--f-b:'Noto Sans KR','Malgun Gothic',sans-serif}
:lang(ar) h1,:lang(ar) h2,:lang(zh) h1,:lang(zh) h2,:lang(ja) h1,:lang(ja) h2,:lang(ko) h1,:lang(ko) h2{letter-spacing:0;line-height:1.25}
img,svg{display:block;max-width:100%}
a{color:inherit;text-decoration:none}
ul,ol{list-style:none}
button{font:inherit;color:inherit;background:none;border:0;cursor:pointer}
[hidden]{display:none!important}
:focus-visible{outline:2px solid var(--accent);outline-offset:3px;border-radius:6px}
.wrap{width:min(var(--wrap),100% - 48px);margin-inline:auto}
.ic{width:20px;height:20px;flex:none}.ic--s{width:16px;height:16px}.ic--xs{width:13px;height:13px}
.arr{display:inline-flex;transition:transform .45s var(--ease)}
[dir=rtl] .arr{transform:scaleX(-1)}
a:hover>.arr,.btn:hover .arr{transform:translateX(calc(5px*var(--dir)))}
[dir=rtl] a:hover>.arr,[dir=rtl] .btn:hover .arr{transform:scaleX(-1) translateX(5px)}

/* ---------- type ---------- */
h1,h2,h3,h4{font-family:var(--f-d);font-weight:600;line-height:1.08;letter-spacing:-.02em}
.h1{font-size:clamp(40px,6.4vw,92px)}
.h2{font-size:clamp(30px,4.2vw,58px);margin-block-end:22px;max-width:20ch}
.h3{font-size:clamp(22px,2.4vw,32px)}
.lead{font-size:clamp(16px,1.35vw,19.5px);color:var(--mut);max-width:60ch}
.eyebrow{display:inline-flex;align-items:center;gap:12px;font-size:12px;font-weight:700;letter-spacing:.2em;text-transform:uppercase;color:var(--accent);margin-block-end:18px}
:lang(ar) .eyebrow,:lang(zh) .eyebrow,:lang(ja) .eyebrow,:lang(ko) .eyebrow{letter-spacing:.04em;text-transform:none}
.eyebrow::before{content:"";width:34px;height:1.5px;background:currentColor}
.muted{color:var(--mut)}
.center{text-align:center}.center .h2,.center .lead{margin-inline:auto}.center .eyebrow{justify-content:center}

/* ---------- reveal ---------- */
.rv{opacity:0;transform:translateY(30px);transition:opacity 1s var(--ease) var(--d,0s),transform 1s var(--ease) var(--d,0s)}
.rv.in{opacity:1;transform:none}
.rv--l{transform:translateX(calc(-40px*var(--dir)))}.rv--r{transform:translateX(calc(40px*var(--dir)))}
.rv--s{transform:scale(.94)}
.split .w{display:inline-block;overflow:hidden;vertical-align:top;padding-block-end:.14em;margin-block-end:-.14em}
.split .w>i{display:inline-block;font-style:normal;transform:translateY(112%);transition:transform 1.1s var(--ease);transition-delay:calc(var(--i)*60ms + var(--base,0s))}
.split.in .w>i{transform:none}
.mask{overflow:hidden;position:relative}
.mask>img,.mask>.art{transform:scale(1.25);clip-path:inset(0 0 100% 0);transition:transform 1.6s var(--ease),clip-path 1.3s var(--ease)}
.mask.in>img,.mask.in>.art{transform:none;clip-path:inset(0)}

/* ---------- loader / curtain / progress ---------- */
.loader{position:fixed;inset:0;z-index:2000;background:var(--bg);display:grid;place-items:center;transition:clip-path 1.1s var(--ease) .1s;clip-path:inset(0 0 0 0)}
.loader.done{clip-path:inset(0 0 100% 0);pointer-events:none}
.loader__in{text-align:center;color:var(--accent)}
.loader__svg{width:160px;fill:none;stroke:currentColor;stroke-width:1.6;stroke-linecap:round}
.loader__svg path{stroke-dasharray:160;stroke-dashoffset:160;animation:dash 1.6s var(--ease) forwards}
.loader__svg path:nth-child(2){animation-delay:.15s}.loader__svg path:nth-child(3){animation-delay:.3s}
@keyframes dash{to{stroke-dashoffset:0}}
.loader__n{display:block;margin-top:10px;font:600 13px var(--f-b);letter-spacing:.3em;color:var(--mut)}
.curtain{position:fixed;inset:0;z-index:1900;pointer-events:none;display:grid;grid-template-columns:repeat(4,1fr)}
.curtain i{background:var(--bg2);transform:scaleY(0);transform-origin:top;transition:transform .55s var(--ease);border-inline-end:1px solid var(--line)}
.curtain i:nth-child(2){transition-delay:.05s}.curtain i:nth-child(3){transition-delay:.1s}.curtain i:nth-child(4){transition-delay:.15s}
.curtain.on{pointer-events:auto}.curtain.on i{transform:scaleY(1)}
.progress{position:fixed;inset:0 0 auto 0;height:3px;z-index:950;background:linear-gradient(90deg,var(--accent),var(--blue));transform:scaleX(0);transform-origin:left}
[dir=rtl] .progress{transform-origin:right}

/* ---------- nav ---------- */
.nav{position:fixed;inset:0 0 auto 0;z-index:900;display:flex;align-items:center;gap:28px;padding:14px max(24px,calc((100% - var(--wrap))/2));transition:background .4s,backdrop-filter .4s,padding .4s,transform .5s var(--ease),border-color .4s;border-bottom:1px solid transparent}
.nav.scrolled{background:color-mix(in srgb,var(--bg) 78%,transparent);backdrop-filter:blur(18px) saturate(1.3);padding-block:9px;border-color:var(--line)}
.nav.hide{transform:translateY(-100%)}
.brand img{height:42px;width:auto;filter:var(--logo);transition:filter .4s}
.nav__links{display:flex;align-items:center;gap:4px;margin-inline-start:auto}
.nav__link{position:relative;display:inline-flex;align-items:center;gap:6px;padding:9px 13px;font-size:14px;font-weight:600;color:var(--mut);border-radius:99px;transition:color .3s,background .3s;white-space:nowrap}
.nav__link:hover,.nav__link.on{color:var(--ink);background:var(--card)}
.nav__link.on::after{content:"";position:absolute;inset-inline:16px;bottom:3px;height:2px;border-radius:2px;background:var(--accent)}
.nav__tools{display:flex;align-items:center;gap:8px}
.iconbtn{display:inline-flex;align-items:center;gap:6px;height:40px;min-width:40px;justify-content:center;padding-inline:10px;border:1px solid var(--line);border-radius:99px;font-size:12px;font-weight:700;transition:all .3s;background:var(--card)}
.iconbtn:hover{border-color:var(--accent);color:var(--accent)}
.ti{display:none}[data-theme=dark] .ti--sun,[data-theme=light] .ti--moon{display:block}
.nav__burger{display:none;width:42px;height:42px;position:relative;border:1px solid var(--line);border-radius:50%}
.nav__burger span{position:absolute;inset-inline:12px;height:2px;background:var(--ink);transition:transform .4s var(--ease)}
.nav__burger span:first-child{top:16px}.nav__burger span:last-child{top:23px}
.nav__burger[aria-expanded=true] span:first-child{transform:translateY(3.5px) rotate(45deg)}
.nav__burger[aria-expanded=true] span:last-child{transform:translateY(-3.5px) rotate(-45deg)}
/* mega menu */
.nav__dd{position:relative}
.mega{position:fixed;inset-inline:max(24px,calc((100% - var(--wrap))/2));top:68px;display:grid;grid-template-columns:1.7fr 1fr;gap:0;border:1px solid var(--line);border-radius:26px;background:color-mix(in srgb,var(--bg2) 94%,transparent);backdrop-filter:blur(22px);box-shadow:var(--shadow);opacity:0;visibility:hidden;transform:translateY(12px) scale(.985);transition:all .45s var(--ease);overflow:hidden}
.nav__dd.open .mega{opacity:1;visibility:visible;transform:none}
.nav__dd.open #ddBtn{color:var(--ink);background:var(--card)}
.nav__dd.open #ddBtn .ic{transform:rotate(180deg)}#ddBtn .ic{transition:transform .35s}
.mega__list{display:grid;grid-template-columns:1fr 1fr;gap:4px;padding:14px}
.mm-item{display:flex;gap:14px;align-items:flex-start;padding:13px 14px;border-radius:16px;transition:background .3s,transform .4s var(--ease)}
.mm-item:hover{background:var(--card);transform:translateX(calc(4px*var(--dir)))}
.mm-ic{display:grid;place-items:center;width:40px;height:40px;border-radius:12px;background:color-mix(in srgb,var(--accent) 16%,transparent);color:var(--accent);flex:none}
.mm-item b{display:block;font-size:14.5px}.mm-item small{display:block;color:var(--mut);font-size:12.5px;line-height:1.45;margin-top:2px;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.mega__side{padding:28px;background:linear-gradient(160deg,color-mix(in srgb,var(--accent) 16%,var(--bg3)),var(--bg3));display:flex;flex-direction:column;gap:12px;align-items:flex-start;border-inline-start:1px solid var(--line)}
.mega__side h4{font-size:24px}.mega__side p{color:var(--mut);font-size:14px}.mega__side .eyebrow{margin:0}
.mega__all{margin-top:auto;display:inline-flex;gap:8px;align-items:center;font-weight:700;font-size:14px;color:var(--accent)}
/* language */
.langsel{position:relative}
.langsel__menu{position:absolute;inset-inline-end:0;top:calc(100% + 10px);min-width:170px;padding:8px;border:1px solid var(--line);border-radius:18px;background:var(--bg2);box-shadow:var(--shadow);display:grid;opacity:0;visibility:hidden;transform:translateY(8px);transition:all .35s var(--ease)}
.langsel.open .langsel__menu{opacity:1;visibility:visible;transform:none}
.langsel__menu button{padding:10px 14px;border-radius:12px;text-align:start;font-size:14px;font-weight:600}
.langsel__menu button:hover{background:var(--card)}.langsel__menu button.on{color:var(--accent)}

/* ---------- buttons ---------- */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:10px;padding:15px 28px;border-radius:99px;font-weight:700;font-size:15px;position:relative;overflow:hidden;transition:transform .35s var(--ease),box-shadow .4s,background .3s,color .3s,border-color .3s;will-change:transform;isolation:isolate;white-space:nowrap}
.btn--sm{padding:10px 18px;font-size:13.5px}
.btn--solid{background:var(--ink);color:var(--bg)}
.btn--solid::before{content:"";position:absolute;inset:0;background:var(--accent);transform:translateY(101%);transition:transform .5s var(--ease);z-index:-1}
.btn--solid:hover{color:var(--accent-ink)}.btn--solid:hover::before{transform:none}
.btn--line{border:1px solid var(--line);background:var(--card)}
.btn--line:hover{border-color:var(--accent);color:var(--accent)}
.btn--accent{background:var(--accent);color:var(--accent-ink)}.btn--accent:hover{box-shadow:0 14px 40px -10px var(--accent)}

/* ---------- modal ---------- */
.modal{position:fixed;inset:0;z-index:1500;display:grid;place-items:center;padding:20px}
.modal__scrim{position:absolute;inset:0;background:rgba(5,7,10,.66);backdrop-filter:blur(8px);animation:fade .4s both}
.modal__card{position:relative;width:min(440px,100%);padding:38px 34px 30px;border-radius:30px;background:var(--bg2);border:1px solid var(--line);box-shadow:var(--shadow);text-align:center;animation:pop .6s var(--ease) both}
@keyframes fade{from{opacity:0}}@keyframes pop{from{opacity:0;transform:translateY(30px) scale(.94)}}
.modal__x{position:absolute;top:14px;inset-inline-end:14px;width:36px;height:36px;border-radius:50%;display:grid;place-items:center;border:1px solid var(--line)}
.modal__ic{display:inline-grid;place-items:center;width:62px;height:62px;border-radius:50%;background:color-mix(in srgb,var(--accent) 18%,transparent);color:var(--accent);margin-block-end:16px}
.modal__ic .ic{width:28px;height:28px}.modal__ic--ok{background:rgba(52,211,153,.16);color:#34d399}
.modal h3{font-size:26px;margin-block-end:10px}.modal p{color:var(--mut);font-size:14.5px;margin-block-end:20px}
.modal form{display:grid;gap:12px}
.modal #codeInput,.modal .otp-input{width:100%;padding:16px 18px;border-radius:16px;border:1px solid var(--line);background:var(--bg);color:var(--ink);font:700 20px var(--f-b);letter-spacing:.16em;text-align:center;text-transform:uppercase;transition:border-color .3s,box-shadow .3s}
.modal #codeInput::placeholder{letter-spacing:.1em;color:var(--dim);font-weight:500}
.modal #codeInput:focus,.modal .otp-input:focus,.auth-form input:focus{outline:0;border-color:var(--accent);box-shadow:0 0 0 4px color-mix(in srgb,var(--accent) 22%,transparent)}
.modal__err{color:#fb7185!important;margin:0!important;font-size:13.5px!important}
.modal small{display:block;margin-top:16px;color:var(--dim);font-size:12.5px}
.modal .btn{width:100%;margin-top:6px}
.modal.shake .modal__card{animation:shake .45s}
@keyframes shake{20%,60%{transform:translateX(-8px)}40%,80%{transform:translateX(8px)}}

/* ---------- footer ---------- */
.foot{position:relative;background:var(--bg2);margin-top:0;padding-top:90px}
.foot__wave{position:absolute;inset:0 0 auto 0;height:60px;transform:translateY(-99%);background:var(--bg2);-webkit-mask:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 1440 60' preserveAspectRatio='none'%3E%3Cpath d='M0 60V30C160 5 320 0 480 18s320 38 480 18 320-30 480-6v30z'/%3E%3C/svg%3E") center/100% 100% no-repeat;mask:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 1440 60' preserveAspectRatio='none'%3E%3Cpath d='M0 60V30C160 5 320 0 480 18s320 38 480 18 320-30 480-6v30z'/%3E%3C/svg%3E") center/100% 100% no-repeat}
.foot__top{display:grid;grid-template-columns:1.6fr 1fr 1fr 1fr;gap:48px;padding-block-end:56px}
.foot__brand img{height:52px;width:auto;filter:var(--logo);margin-block-end:18px}
.foot__brand p{color:var(--mut);max-width:34ch;font-size:14.5px;margin-block-end:18px}
.foot__mail,.foot__phone{display:flex;align-items:center;gap:10px;color:var(--mut);font-size:14px;margin-block-end:6px}
.foot__mail:hover{color:var(--accent)}
.foot h5{font:700 12px var(--f-b);letter-spacing:.16em;text-transform:uppercase;color:var(--dim);margin-block-end:16px}
:lang(ar) .foot h5,:lang(zh) .foot h5,:lang(ja) .foot h5,:lang(ko) .foot h5{letter-spacing:.02em;text-transform:none}
.foot__top>div:not(.foot__brand) a{display:block;color:var(--mut);font-size:14.5px;padding-block:5px;transition:color .3s,transform .4s var(--ease)}
.foot__top>div:not(.foot__brand) a:hover{color:var(--ink);transform:translateX(calc(5px*var(--dir)))}
.foot__bot{display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;padding-block:24px;border-top:1px solid var(--line);font-size:13px;color:var(--dim)}
.foot__legal{display:flex;gap:22px}.foot__legal a:hover{color:var(--ink)}

/* ---------- responsive shell ---------- */
@media(max-width:1100px){.nav__link{padding-inline:9px;font-size:13px}.nav__cta{display:none}}
@media(max-width:960px){
  .nav__burger{display:block}
  .nav__links{position:fixed;inset:0;margin:0;flex-direction:column;align-items:stretch;justify-content:flex-start;gap:2px;padding:92px 24px 40px;background:var(--bg);overflow-y:auto;opacity:0;visibility:hidden;transform:translateY(-12px);transition:all .45s var(--ease)}
  .nav__links.open{opacity:1;visibility:visible;transform:none}
  .nav__link{font:600 26px var(--f-d);padding:12px 6px;border-radius:12px;justify-content:space-between;color:var(--ink)}
  .nav__link.on::after{display:none}
  .nav__tools{margin-inline-start:auto;position:relative;z-index:2}
  .mega{position:static;display:none;opacity:1;visibility:visible;transform:none;grid-template-columns:1fr;box-shadow:none;border-radius:18px;margin-block:4px 10px}
  .nav__dd.open .mega{display:grid}
  .mega__list{grid-template-columns:1fr}.mega__side{border-inline-start:0;border-top:1px solid var(--line)}
  .foot__top{grid-template-columns:1fr 1fr}
}
@media(max-width:560px){.foot__top{grid-template-columns:1fr}.modal__card{padding:34px 22px 24px}.iconbtn #langCur{display:none}}
@media(prefers-reduced-motion:reduce){
  *,*::before,*::after{animation-duration:.01ms!important;animation-iteration-count:1!important;transition-duration:.01ms!important;scroll-behavior:auto!important}
  .rv,.split .w>i,.mask>img,.mask>.art{opacity:1!important;transform:none!important;clip-path:none!important}
}

/* ---------- member sign-in ---------- */
.signin{gap:8px}
.memsel{position:relative}
.memsel__btn{display:grid;place-items:center;width:40px;height:40px;border-radius:50%;background:var(--accent);color:var(--accent-ink);font:700 13px var(--f-b);transition:transform .3s var(--ease),box-shadow .3s}
.memsel__btn:hover{transform:scale(1.06);box-shadow:0 8px 24px -8px var(--accent)}
.memsel__menu{position:absolute;inset-inline-end:0;top:calc(100% + 10px);min-width:230px;padding:8px;border:1px solid var(--line);border-radius:18px;background:var(--bg2);box-shadow:var(--shadow);opacity:0;visibility:hidden;transform:translateY(8px);transition:all .35s var(--ease)}
.memsel.open .memsel__menu{opacity:1;visibility:visible;transform:none}
.memsel__who{display:grid;gap:2px;padding:10px 12px 12px;border-bottom:1px solid var(--line);margin-block-end:6px}
.memsel__who small{color:var(--dim);font-size:11px;letter-spacing:.08em;text-transform:uppercase}
.memsel__who b{font-size:15px}.memsel__who span{color:var(--mut);font-size:13px;word-break:break-all}
.memsel__menu>button{display:flex;align-items:center;gap:10px;width:100%;padding:10px 12px;border-radius:12px;font-weight:600;font-size:14px;text-align:start}
.memsel__menu>button:hover{background:var(--card);color:var(--accent)}
.auth-form{display:grid;gap:14px;text-align:start}
.auth-form label{display:grid;gap:6px;font-size:13px;font-weight:700;color:var(--mut)}
.auth-form input{width:100%;padding:14px 16px;border-radius:14px;border:1px solid var(--line);background:var(--bg);color:var(--ink);font:500 15px var(--f-b);transition:border-color .3s,box-shadow .3s}
.auth-form input:focus,.modal .otp-input:focus{outline:0;border-color:var(--accent);box-shadow:0 0 0 4px color-mix(in srgb,var(--accent) 22%,transparent)}
.modal .otp-input{text-align:center;font:700 26px var(--f-b);letter-spacing:.5em;text-transform:none;padding-inline-start:calc(18px + .5em)}
.link-btn{margin-top:14px;color:var(--accent);font-weight:700;font-size:14px}
.link-btn:hover{text-decoration:underline}
.modal .btn+.btn{margin-top:8px}
.modal a.btn{width:100%}
@media(max-width:560px){.signin>span{display:none}.signin{padding-inline:12px}}