/* ============================================================================
   DOWNTOWN TBILISI / TRUMP TOWER TBILISI
   base.css — shared layout, components and motion primitives.
   Read docs/animation-system.md before editing timings or easings.
   Load order: base.css → image-placeholders.css → <site>/styles.css → motion.css
   ============================================================================ */

/* ---------- motion tokens (single source of truth) ---------- */
:root{
  --ease-out:cubic-bezier(.16,1,.3,1);      /* main signature ease */
  --ease-io:cubic-bezier(.65,.05,.36,1);    /* curtains, wipes */
  --t-fast:.5s; --t-med:.9s; --t-slow:1.3s; --t-hero:1.6s;
  --stagger:90ms;
}

*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
html:not(.js){scroll-behavior:smooth}
body{margin:0;overflow-x:hidden;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale;text-rendering:optimizeLegibility}
img,video{max-width:100%;display:block}
button,input,select,textarea{font:inherit;color:inherit}
a{color:inherit;text-decoration:none}
h1,h2,h3,h4,p,figure,blockquote{margin:0}
ul,ol{margin:0;padding:0;list-style:none}
::selection{background:var(--accent);color:var(--ink)}
:focus-visible{outline:1px solid var(--accent);outline-offset:4px}

/* ---------- layout ---------- */
.wrap{width:min(1440px,100% - clamp(24px,6vw,120px));margin-inline:auto}
.wrap-narrow{width:min(980px,100% - clamp(24px,6vw,120px));margin-inline:auto}
.sec{position:relative;padding:clamp(88px,12vw,190px) 0}
.sec-tight{padding:clamp(56px,7vw,110px) 0}
.grid{display:grid;gap:clamp(24px,3.5vw,64px)}
.g2{grid-template-columns:repeat(2,minmax(0,1fr))}
.g3{grid-template-columns:repeat(3,minmax(0,1fr))}
.g4{grid-template-columns:repeat(4,minmax(0,1fr))}
.g12{grid-template-columns:repeat(12,minmax(0,1fr))}
@media(max-width:900px){.g2,.g3,.g4{grid-template-columns:1fr}.g12{grid-template-columns:repeat(6,minmax(0,1fr))}}
/* the deliverable page wraps hero…enquire so the footer can sit behind it */
.page-main{position:relative;z-index:2;background:var(--pagebg,inherit)}

/* ---------- eyebrow / rule ---------- */
.eyebrow{font-size:clamp(9px,.72vw,11px);letter-spacing:.38em;text-transform:uppercase;color:var(--muted);display:flex;align-items:center;gap:14px}
.eyebrow::before{content:"";width:clamp(20px,3vw,44px);height:1px;background:var(--accent);flex:none;transform:scaleX(0);transform-origin:left;transition:transform 1.1s var(--ease-out) .1s}
.in-view .eyebrow::before{transform:scaleX(1)}
.rule{height:1px;background:var(--hair);transform:scaleX(0);transform-origin:left;transition:transform 1.4s var(--ease-out)}
.in-view .rule{transform:scaleX(1)}

/* ---------- reveal primitives ---------- */
.rv{opacity:0;transform:translateY(30px);transition:opacity var(--t-med) var(--ease-out),transform var(--t-med) var(--ease-out)}
.in-view .rv,.rv.in-view{opacity:1;transform:none}
.in-view .rv-1{transition-delay:calc(var(--stagger)*1)}
.in-view .rv-2{transition-delay:calc(var(--stagger)*2)}
.in-view .rv-3{transition-delay:calc(var(--stagger)*3)}
.in-view .rv-4{transition-delay:calc(var(--stagger)*4)}
.in-view .rv-5{transition-delay:calc(var(--stagger)*5)}
.in-view .rv-6{transition-delay:calc(var(--stagger)*6)}

/* line-by-line masked headline reveal (spans injected by motion.js) */
.split .ln{display:block;overflow:hidden;padding-bottom:.14em;margin-bottom:-.14em}
.split .ln>span{display:block;transform:translateY(110%) rotate(2.2deg);transform-origin:left bottom;transition:transform 1.1s var(--ease-out)}
.in-view .split .ln>span{transform:none}
.in-view .split .ln:nth-child(2)>span{transition-delay:.1s}
.in-view .split .ln:nth-child(3)>span{transition-delay:.2s}
.in-view .split .ln:nth-child(4)>span{transition-delay:.3s}

/* word-fill paragraphs ([data-fill], spans injected by motion.js) */
[data-fill] .fw{opacity:.16;transition:opacity .4s ease}
[data-fill] .fw.on{opacity:1}

/* ---------- media: masked wipe + settle ---------- */
.media{position:relative;overflow:hidden;background:var(--sunk)}
.media img{width:100%;height:100%;object-fit:cover;opacity:0;
  clip-path:inset(100% 0 0 0);
  transform:scale(1.14) translateY(24px);
  transition:opacity var(--t-slow) ease,transform 1.8s var(--ease-out),clip-path 1.25s var(--ease-io)}
.media img.loaded{opacity:1}
.media.mv img{clip-path:inset(0 0 0 0)}
.media.mv img.loaded{transform:none}
/* captions on media ride the same reveal */
.media figcaption,.hab figcaption{opacity:0;transition:opacity .8s ease .45s}
.media.mv figcaption{opacity:1}
.media.r-32{aspect-ratio:3/2}.media.r-169{aspect-ratio:16/9}.media.r-11{aspect-ratio:1/1}
.media.r-45{aspect-ratio:4/5}.media.r-23{aspect-ratio:2/3}.media.r-219{aspect-ratio:21/9}
.media.r-34{aspect-ratio:3/4}
.par{will-change:transform}
figcaption{margin-top:16px;font-size:11px;letter-spacing:.16em;text-transform:uppercase;color:var(--muted)}

/* ---------- buttons ---------- */
.btn{position:relative;display:inline-flex;align-items:center;gap:12px;padding:17px 34px;font-size:11px;letter-spacing:.24em;text-transform:uppercase;border:1px solid var(--accent);color:var(--accent);background:none;cursor:pointer;overflow:hidden;transition:color .55s ease}
.btn span{position:relative;z-index:2}
.btn::after{content:"";position:absolute;inset:0;background:var(--accent);transform:translateY(101%);transition:transform .6s var(--ease-out);z-index:1}
.btn:hover{color:var(--ink)}
.btn:hover::after{transform:none}
.btn-solid{background:var(--accent);color:var(--ink)}
.btn-solid::after{background:var(--ink)}
.btn-solid:hover{color:var(--accent)}
.link-u{position:relative;display:inline-block;font-size:11px;letter-spacing:.24em;text-transform:uppercase;padding-bottom:6px}
.link-u::after{content:"";position:absolute;left:0;bottom:0;width:100%;height:1px;background:currentColor;transform:scaleX(0);transform-origin:right;transition:transform .6s var(--ease-out)}
.link-u:hover::after{transform:scaleX(1);transform-origin:left}

/* ---------- nav ---------- */
.nav{position:fixed;inset:0 0 auto;z-index:60;display:flex;align-items:center;justify-content:space-between;gap:24px;padding:clamp(18px,2.2vw,30px) clamp(20px,4vw,60px);transition:background .6s ease,padding .6s ease,box-shadow .6s ease,transform .6s var(--ease-out)}
.nav.stuck{background:var(--navbg);padding-block:clamp(12px,1.4vw,18px);box-shadow:0 1px 0 var(--hair)}
.nav.nav-hide{transform:translateY(-110%)}
.nav-links{display:flex;gap:clamp(18px,2.4vw,38px);align-items:center}
.nav-links a{font-size:10.5px;letter-spacing:.22em;text-transform:uppercase;opacity:.72;transition:opacity .4s}
.nav-links a:hover{opacity:1}
.nav-right{display:flex;align-items:center;gap:clamp(14px,2vw,28px)}
.lang{display:flex;gap:2px;align-items:center;font-size:10px;letter-spacing:.16em}
.lang button{background:none;border:0;padding:5px 7px;cursor:pointer;opacity:.45;transition:opacity .35s;text-transform:uppercase;letter-spacing:.16em}
.lang button.on{opacity:1}
.lang i{opacity:.28;font-style:normal}
.m-cta{display:none}
.burger{display:none;width:34px;height:14px;position:relative;background:none;border:0;cursor:pointer}
.burger i{position:absolute;left:0;width:100%;height:1px;background:currentColor;transition:transform .5s var(--ease-out),opacity .3s}
.burger i:nth-child(1){top:0}.burger i:nth-child(2){top:13px}
.open .burger i:nth-child(1){transform:translateY(6px) rotate(45deg)}
.open .burger i:nth-child(2){transform:translateY(-7px) rotate(-45deg)}
@media(max-width:1080px){
  .nav-links{position:fixed;inset:0;flex-direction:column;justify-content:center;background:var(--ink);gap:26px;opacity:0;visibility:hidden;pointer-events:none;transition:opacity .5s ease,visibility .5s;z-index:-1}
  .nav-links a{font-size:16px;letter-spacing:.16em}
  .open .nav-links{opacity:1;visibility:visible;pointer-events:auto}
  .nav-right > .btn{display:none}
  .m-cta{display:block!important;color:var(--accent)}
  body.open{overflow:hidden}
  .burger{display:block}
}

/* ---------- hero shell ---------- */
.hero{position:relative;min-height:100svh;display:flex;align-items:flex-end;overflow:hidden;color:var(--onmedia)}
.hero-bg{position:absolute;inset:0;z-index:0}
.hero-bg img{width:100%;height:100%;object-fit:cover}
.hero-bg::after{content:"";position:absolute;inset:0}
.hero-in{position:relative;z-index:2;max-width:100%;padding-bottom:clamp(118px,14vh,180px)}
.scroll-cue{position:absolute;left:50%;bottom:26px;transform:translateX(-50%);z-index:3;display:flex;flex-direction:column;align-items:center;gap:10px;font-size:9px;letter-spacing:.3em;text-transform:uppercase;opacity:.6}
.scroll-cue i{display:block;width:1px;height:46px;background:currentColor;transform-origin:top;animation:cue 2.6s var(--ease-out) infinite}
@keyframes cue{0%{transform:scaleY(0)}45%{transform:scaleY(1)}55%{transform:scaleY(1);transform-origin:bottom}100%{transform:scaleY(0);transform-origin:bottom}}
/* slow drift on the hero plate (JS parallax rides on the wrapper, not the img) */
.kb{animation:kb 30s ease-in-out infinite alternate}
@keyframes kb{from{transform:scale(1.02)}to{transform:scale(1.1) translateY(-1.6%)}}
/* entrance: gated on body.ready (set when the preloader lifts) */
body:not(.ready) .hero .rv{opacity:0;transform:translateY(30px)}
body:not(.ready) .hero .split .ln>span{transform:translateY(110%) rotate(2.2deg)}

/* ---------- stats ---------- */
.stats{display:grid;gap:clamp(20px,3vw,56px)}
@media(max-width:900px){.stats.g4,.stats.stats-4{grid-template-columns:repeat(2,minmax(0,1fr))}}
@media(max-width:560px){.stats.g4,.stats.stats-4{grid-template-columns:1fr}}
.stat .n{font-family:var(--display);font-weight:300;font-size:clamp(40px,5.2vw,78px);line-height:1;letter-spacing:-.01em}
.stat .n sup{font-size:.4em;vertical-align:super;letter-spacing:0}
.stat .l{margin-top:14px;font-size:10.5px;letter-spacing:.22em;text-transform:uppercase;color:var(--muted);line-height:1.7}

/* ---------- marquee (CSS fallback; motion.js drives it when active) ---------- */
.mq{overflow:hidden;white-space:nowrap;-webkit-mask-image:linear-gradient(90deg,transparent,#000 8%,#000 92%,transparent);mask-image:linear-gradient(90deg,transparent,#000 8%,#000 92%,transparent)}
.mq-t{display:inline-flex;gap:clamp(28px,4vw,72px);align-items:center;animation:mq 46s linear infinite;padding-right:clamp(28px,4vw,72px)}
.mq-t.js-run{animation:none}
.mq:hover .mq-t:not(.js-run){animation-play-state:paused}
@keyframes mq{to{transform:translateX(-50%)}}
.mq-t span{font-size:clamp(11px,1vw,13px);letter-spacing:.24em;text-transform:uppercase;color:var(--muted);display:inline-flex;align-items:center;gap:clamp(28px,4vw,72px)}
.mq-t span::after{content:"";width:4px;height:4px;border-radius:50%;background:var(--accent);opacity:.5}

/* ---------- gallery rail ---------- */
.rail{display:flex;gap:clamp(12px,1.6vw,28px);overflow-x:auto;scroll-snap-type:x mandatory;padding-bottom:20px;cursor:grab;scrollbar-width:none}
.rail::-webkit-scrollbar{display:none}
.rail.drag{cursor:grabbing;scroll-snap-type:none}
.rail img{-webkit-user-drag:none;user-drag:none;user-select:none}
.rail figure{flex:0 0 clamp(280px,52vw,720px);scroll-snap-align:center;margin:0}
.rail figure.wide{flex-basis:clamp(300px,72vw,1040px)}
.rail-nav{display:flex;gap:10px;align-items:center;margin-top:22px}
.rail-nav button{width:46px;height:46px;border:1px solid var(--hair);background:none;cursor:pointer;color:var(--fg);display:grid;place-items:center;transition:border-color .4s,background .4s}
.rail-nav button:hover{border-color:var(--accent);background:color-mix(in srgb,var(--accent) 12%,transparent)}
.rail-nav svg{width:17px;height:9px;stroke:currentColor;stroke-width:1;fill:none}
.rail-prog{flex:1;height:1px;background:var(--hair);position:relative;margin-left:14px}
.rail-prog i{position:absolute;inset:0 auto 0 0;background:var(--accent);width:20%}

/* ---------- accordion ---------- */
.acc-i{border-top:1px solid var(--hair)}
.acc-i:last-child{border-bottom:1px solid var(--hair)}
.acc-h{width:100%;display:flex;align-items:center;justify-content:space-between;gap:24px;padding:clamp(20px,2.4vw,32px) 0;background:none;border:0;text-align:left;cursor:pointer;font-size:clamp(15px,1.5vw,21px);font-family:var(--display);font-weight:300;transition:color .4s}
.acc-h:hover{color:var(--accent)}
.acc-h i{flex:none;width:13px;height:13px;position:relative}
.acc-h i::before,.acc-h i::after{content:"";position:absolute;background:currentColor;transition:transform .5s var(--ease-out)}
.acc-h i::before{left:0;top:6px;width:13px;height:1px}
.acc-h i::after{top:0;left:6px;width:1px;height:13px}
.acc-i.on .acc-h i::after{transform:scaleY(0)}
.acc-b{display:grid;grid-template-rows:0fr;transition:grid-template-rows .6s var(--ease-out)}
.acc-i.on .acc-b{grid-template-rows:1fr}
.acc-b > div{overflow:hidden}
.acc-b p{padding-bottom:clamp(20px,2.4vw,32px);max-width:62ch;color:var(--muted)}

/* ---------- form ---------- */
.field{position:relative;margin-bottom:34px}
.field input,.field select,.field textarea{width:100%;background:none;border:0;border-bottom:1px solid var(--hair);padding:12px 0;font-size:14px;letter-spacing:.02em;transition:border-color .5s}
.field textarea{resize:vertical;min-height:78px}
.field label{position:absolute;left:0;top:12px;font-size:11px;letter-spacing:.2em;text-transform:uppercase;color:var(--muted);pointer-events:none;transition:transform .45s var(--ease-out),font-size .45s,color .45s;transform-origin:left}
.field input:focus + label,.field textarea:focus + label,.field input:not(:placeholder-shown) + label,.field textarea:not(:placeholder-shown) + label{transform:translateY(-26px) scale(.82);color:var(--accent)}
.field select + label{transform:translateY(-26px) scale(.82)}
.field input:focus,.field select:focus,.field textarea:focus{border-color:var(--accent);outline:none}
.field select{appearance:none;cursor:pointer}
.field.sel::after{content:"";position:absolute;right:2px;top:18px;width:7px;height:7px;border-right:1px solid var(--muted);border-bottom:1px solid var(--muted);transform:rotate(45deg);pointer-events:none}
.consent{display:flex;gap:13px;align-items:flex-start;font-size:11.5px;line-height:1.75;color:var(--muted);margin-bottom:30px}
.consent input{margin-top:3px;accent-color:var(--accent)}

/* ---------- footer (revealed from beneath .page-main) ---------- */
.foot{padding:clamp(56px,7vw,100px) 0 34px;position:sticky;bottom:0;z-index:1}
.foot-cols{display:grid;grid-template-columns:1.4fr 1fr 1fr 1fr;gap:clamp(24px,3vw,56px)}
@media(max-width:900px){.foot-cols{grid-template-columns:1fr 1fr}}
@media(max-width:560px){.foot-cols{grid-template-columns:1fr}}
.foot h4{font-size:10px;letter-spacing:.26em;text-transform:uppercase;color:var(--muted);margin-bottom:20px}
.foot li{margin-bottom:11px;font-size:12.5px;opacity:.85}
.foot li a:hover{color:var(--accent)}
.legal{margin-top:clamp(44px,5vw,76px);padding-top:26px;border-top:1px solid var(--hair);font-size:10.5px;line-height:1.9;color:var(--muted);max-width:100ch}
.tbc{color:var(--accent);border-bottom:1px dotted currentColor;cursor:help}

/* ---------- preloader ---------- */
.pre{position:fixed;inset:0;z-index:200;background:var(--ink);display:flex;align-items:center;justify-content:center;transform:translateY(0);transition:transform 1s var(--ease-io) .15s;will-change:transform}
.pre.done{transform:translateY(-101%)}
.pre-in{display:flex;flex-direction:column;align-items:center;gap:30px;transition:opacity .5s ease,transform .6s var(--ease-out)}
.pre.done .pre-in{opacity:0;transform:translateY(-24px)}
.pre-n{position:fixed;right:clamp(22px,4vw,56px);bottom:clamp(18px,3.5vw,44px);font-family:var(--display);font-weight:300;font-size:clamp(44px,7vw,104px);line-height:1;color:var(--muted);font-variant-numeric:tabular-nums}
.pre-n::after{content:"%";font-size:.32em;vertical-align:super;letter-spacing:0;opacity:.6}
.pre-bar{width:min(220px,46vw);height:1px;background:var(--hair);position:relative;overflow:hidden}
.pre-bar i{position:absolute;inset:0 auto 0 0;width:0;background:var(--accent);transition:width .35s ease}

/* ---------- misc ---------- */
.only-print{display:none}

/* ---------- no-JS: everything readable, nothing hidden ---------- */
html:not(.js) .pre{display:none}
html:not(.js) .rv{opacity:1;transform:none}
html:not(.js) .split .ln>span{transform:none}
html:not(.js) .media img{clip-path:none}
html:not(.js) .media figcaption,html:not(.js) .hab figcaption{opacity:1}
html:not(.js) .media img{opacity:1!important;transform:none!important}
html:not(.js) body:not(.ready) .hero .rv{opacity:1;transform:none}

/* ---------- reduced motion: calm everything ---------- */
@media(prefers-reduced-motion:reduce){
  *{animation-duration:.01ms!important;transition-duration:.01ms!important;scroll-behavior:auto!important}
  .rv,.split .ln>span,.media img{opacity:1;transform:none}
  .media img{clip-path:none}
  .media figcaption,.hab figcaption{opacity:1}
  [data-fill] .fw{opacity:1}
  .kb{animation:none}
  body:not(.ready) .hero .rv{opacity:1;transform:none}
  body:not(.ready) .hero .split .ln>span{transform:none}
}
.sr-only{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;
  clip:rect(0 0 0 0);white-space:nowrap;border:0}