/* Kaalaiyan prelude: the film's own grey stage, poster-type lines, heroes rising from behind the bottle. */
:root{
  --stage:#e3e3e3;           /* background of the V6 film as browsers render it */
  --ink:#1b1917;
  --muted:#5b5650;
  --nannari:#8a1f1a;
  --gold-1:#f6dfa0; --gold-2:#c8913a; --gold-3:#6b3f12;
  --poster:"Anton","Arial Narrow",Impact,sans-serif;
  --epic:"Cinzel Decorative","Trajan Pro",Georgia,serif;
  --body:"Figtree","Segoe UI",system-ui,sans-serif;
  --bar-h:56px;
  --k-ring-color:var(--ink);
  color-scheme:light;
}
html{scroll-behavior:smooth}
body{margin:0;background:var(--stage);color:var(--ink);font:400 16px/1.55 var(--body)}
a{color:inherit}

/* top bar */
.bar{position:fixed;inset:0 0 auto;z-index:20;height:var(--bar-h);display:flex;align-items:center;gap:14px;
  padding:env(safe-area-inset-top,0px) max(16px,env(safe-area-inset-right,0px)) 0 max(16px,env(safe-area-inset-left,0px));
  background:linear-gradient(var(--stage) 55%,rgb(227 227 227/0))}
.brand{font:400 22px/1 var(--poster);letter-spacing:.06em;text-decoration:none;margin-right:auto}
.langs{display:flex;gap:2px;background:rgb(27 25 23/.08);padding:3px;border-radius:999px}
.langs button{font:600 13px/1 var(--body);border:0;background:none;color:var(--ink);padding:8px 11px;border-radius:999px;cursor:pointer}
.langs button[aria-pressed="true"]{background:var(--ink);color:var(--stage)}
.langs button:focus-visible,.cta:focus-visible,.skip:focus-visible,.btn:focus-visible{outline:2px solid var(--nannari);outline-offset:2px}
.preview{display:flex;align-items:center;gap:6px;font:600 11px/1 var(--body);letter-spacing:.06em;text-transform:uppercase;color:var(--muted)}
.preview select{font:600 13px/1 var(--body);text-transform:none;letter-spacing:0;color:inherit;background:transparent;border:1px solid currentColor;border-radius:4px;padding:6px 4px}
.preview select option{color:#1b1917;background:#fff}
.on-film .preview{color:#d8cdb9}
.skip{font:600 13px/1 var(--body);text-decoration:underline;text-underline-offset:3px;color:var(--muted)}
.cta,.btn{font:700 14px/1 var(--body);text-decoration:none;background:var(--nannari);color:#fff;padding:12px 16px;border-radius:4px;white-space:nowrap}

/* the stage is a dark cinema: the film strip fills it and the keyed bottle floats over it */
.hero .k-stage{background:#0d0b09;color:#f6f0e4}
.k-stage > video[data-k-scrub]{inset:auto;object-fit:fill;z-index:2;mix-blend-mode:multiply;transform-origin:50% 50%;
  -webkit-mask-image:linear-gradient(transparent,#000 10%);mask-image:linear-gradient(transparent,#000 10%)}
.k-stage > canvas.bottle{position:absolute;z-index:2;pointer-events:none;display:block;transform-origin:50% 50%}
.k-keyed .k-stage > video[data-k-scrub]{opacity:0 !important}
.k-keyed .plate{display:none}
.plate{position:absolute;z-index:0;transform-origin:50% 50%;opacity:0;transition:opacity .5s ease;background:linear-gradient(var(--stage),#fff 10%)}
.k-media-ready .plate{opacity:1}
.k-static .plate,.k-static canvas.bottle{display:none}

/* film strip: one full-page frame per era, sliding left to right; a take-up reel winds it in */
.strip{position:absolute;inset:0;z-index:0;overflow:hidden}
.strip-track{position:absolute;inset:0 auto 0 0;display:flex;gap:var(--gap,2vw);background:#000;will-change:transform}
.frame{position:relative;flex:0 0 100vw;height:100%;background:#0d0b09 var(--img) center/cover no-repeat;overflow:hidden}
.frame::before,.frame::after{content:"";position:absolute;left:0;right:0;height:30px;z-index:1;
  background:#0a0907 repeating-linear-gradient(90deg,transparent 0 12px,#d9cfbf 12px 30px,transparent 30px 42px) center/100% 14px no-repeat}
.frame::before{top:var(--bar-b,56px)}.frame::after{bottom:0}
.frame i{position:absolute;inset:0;background:radial-gradient(110% 85% at 50% 38%,transparent 45%,rgb(0 0 0/.6)),linear-gradient(transparent 55%,rgb(0 0 0/.45))}
.reel{position:absolute;z-index:0;width:min(78vh,50vw);height:auto;right:calc(min(78vh,50vw) * -0.38);top:calc(var(--bar-b,56px) - min(78vh,50vw) * 0.22);
  opacity:.95;filter:drop-shadow(0 16px 40px rgb(0 0 0/.6));pointer-events:none}
.reel-spin{will-change:transform}
.k-static .strip,.k-static .reel{display:none}

/* the bottle's own stage: a plain colour field that sets off the glass, moving with each era */
.bottle-panel,.panel-edge{position:absolute;left:0;top:0;bottom:0;z-index:1;pointer-events:none;
  clip-path:polygon(0 0,100% 0,calc(100% - 4vw) 100%,0 100%)}
.panel-edge{width:calc(var(--bottle-r,20vw) + 5.6vw);background:var(--c3,#ffd08a)}
.bottle-panel{width:calc(var(--bottle-r,20vw) + 5vw);
  background:radial-gradient(60% 42% at 40% 52%,var(--c-hi,#ffe2b8),transparent 72%),linear-gradient(var(--c1,#ffb35c),var(--c2,#f26b1d))}
.k-static .bottle-panel,.k-static .panel-edge{display:none}

/* heroes: one canvas and one head size for all, standing behind the bottle */
.heroes{position:absolute;inset:0;overflow:hidden;z-index:1;pointer-events:none;
  -webkit-mask-image:linear-gradient(to top,transparent 0,#000 12%);mask-image:linear-gradient(to top,transparent 0,#000 12%)}
.heroes-clip{position:absolute;inset:0}
.hero-fig{position:absolute;left:50%;bottom:0;height:70vh;width:auto;max-width:none;
  transform-origin:50% 100%;will-change:transform,opacity;filter:drop-shadow(0 20px 40px rgb(0 0 0/.55))}

/* era lines and hero captions, light on the film */
.lines{position:absolute;inset:0;z-index:3;pointer-events:none}
.line{position:absolute;margin:0;left:calc(var(--bottle-r,20vw) + 7vw);top:calc(var(--bar-b,56px) + 6vh);max-width:min(24ch,30vw);
  font:400 clamp(30px,4.2vw,64px)/1.02 var(--poster);text-transform:uppercase;letter-spacing:.01em;text-wrap:balance;
  color:#f6f0e4;text-shadow:0 2px 18px rgb(0 0 0/.7);opacity:0;will-change:transform,opacity}
/* the caption sits under the story line, so heroes own the right of the stage */
.cap{position:absolute;left:calc(var(--bottle-r,20vw) + 7vw);top:calc(var(--bar-b,56px) + 6vh + 3 * clamp(30px,4.2vw,64px) + 22px);max-width:30ch;opacity:0;will-change:transform,opacity;text-shadow:0 1px 10px rgb(0 0 0/.8)}
.cap b{display:block;font:700 clamp(17px,1.6vw,22px)/1.2 var(--body);color:#f6f0e4}
.cap span{display:block;font:600 13px/1.4 var(--body);color:#d8cdb9;letter-spacing:.04em;text-transform:uppercase}

/* finale lettering: carved, weathered gold */
.finale{position:absolute;left:var(--bottle-r,20vw);right:0;top:auto;bottom:16vh;z-index:4;text-align:center;pointer-events:none;opacity:0}
.slogan{margin:0;font:900 clamp(40px,6.4vw,124px)/.95 var(--epic);letter-spacing:.02em;
  filter:drop-shadow(0 2px 0 #3b2208) drop-shadow(0 10px 24px rgb(0 0 0/.7))}
.slogan span{display:inline-block;will-change:transform;
  background:linear-gradient(180deg,var(--gold-1) 8%,var(--gold-2) 46%,var(--gold-3) 52%,var(--gold-2) 72%,var(--gold-1) 100%);
  -webkit-background-clip:text;background-clip:text;color:transparent;-webkit-text-fill-color:transparent}
.slogan-local{margin:10px 0 0;font:700 clamp(18px,2.2vw,32px)/1.3 "Noto Sans Tamil","Noto Sans Telugu","Noto Sans Kannada","Noto Sans Malayalam","Noto Sans Devanagari",var(--body);color:#f6f0e4;opacity:0;
  text-shadow:0 2px 14px rgb(0 0 0/.9),0 0 4px rgb(0 0 0/.8)}

/* Indian scripts: the poster faces have no glyphs for them, so the lines set in Noto Sans, a size down and with room for the matras */
:root{--indic:"Noto Sans Tamil","Noto Sans Telugu","Noto Sans Kannada","Noto Sans Malayalam","Noto Sans Devanagari",var(--body)}
:root:not(:lang(en)) .line,:root:not(:lang(en)) .k-band.intro h2{font-family:var(--indic);font-weight:700;text-transform:none;line-height:1.3;letter-spacing:0}
:root:not(:lang(en)) .line{font-size:clamp(22px,2.6vw,40px);max-width:min(26ch,34vw)}
:root:not(:lang(en)) .k-band.intro h2{font-size:clamp(26px,3.4vw,52px)}
:root:not(:lang(en)) :is(.skip,.cta,.btn,.scroll-hint,.langs button){font-family:var(--indic);text-transform:none;letter-spacing:0}
.langs button:lang(ta),.langs button:lang(te),.langs button:lang(kn),.langs button:lang(ml),.langs button:lang(hi){font-family:var(--indic)}

/* intro band and end button (engine bands) */
.k-band.intro{left:calc(var(--bottle-r,20vw) + 7vw);right:auto;top:calc(var(--bar-b,56px) + 6vh);bottom:auto;max-width:18ch;z-index:4}
.k-band.intro h2{margin:0;font:400 clamp(34px,5vw,76px)/1 var(--poster);text-transform:uppercase;color:#f6f0e4;text-shadow:0 2px 18px rgb(0 0 0/.7)}
.scroll-hint{font:600 13px/1 var(--body);letter-spacing:.1em;text-transform:uppercase;color:#d8cdb9;margin-top:14px}
.k-band.end{left:var(--bottle-r,20vw);right:0;bottom:max(24px,4vh);max-width:none;text-align:center;z-index:5}

/* the bar goes dark while the film is on screen */
.on-film .bar{background:linear-gradient(rgb(10 9 7/.92) 60%,rgb(10 9 7/0));color:#f6f0e4}
.on-film .langs{background:rgb(255 255 255/.1)}
.on-film .langs button{color:#f6f0e4}
.on-film .langs button[aria-pressed="true"]{background:#f6f0e4;color:#0d0b09}
.on-film .skip{color:#d8cdb9}

/* phones: lines on top, caption under, smaller heroes */
@media (max-width:720px){
  :root{--bar-h:96px}
  .bar{flex-wrap:wrap;height:auto;row-gap:8px;padding-top:calc(8px + env(safe-area-inset-top,0px));padding-bottom:8px}
  .langs{order:3}
  .langs button{padding:8px 10px;font-size:12px}
  .preview{order:4;margin-left:auto}.preview span{display:none}.preview select{font-size:12px;max-width:44vw}
  :root:not(:lang(en)) .line{font-size:clamp(17px,4.6vw,22px);max-width:none}
  :root:not(:lang(en)) .k-band.intro h2{font-size:clamp(20px,5.8vw,28px)}
  .skip{display:none}
  .cta{padding:10px 12px;font-size:13px}
  /* the story sits under the bottle, heroes own the screen above it */
  .line{max-width:none;left:calc(var(--bottle-r,40vw) + 12px);right:12px;top:auto;bottom:calc(max(14px,2vh) + 74px);font-size:clamp(20px,5.6vw,26px)}
  .cap{left:calc(var(--bottle-r,40vw) + 12px);right:12px;top:auto;bottom:max(14px,2vh)}
  .k-band.intro{left:calc(var(--bottle-r,40vw) + 12px);right:12px}
  .k-band.intro h2{font-size:clamp(26px,7.4vw,34px)}
  .finale{bottom:30vh;left:0}
  .lines::after{content:"";position:absolute;left:0;right:0;bottom:0;height:34vh;z-index:-1;background:linear-gradient(transparent,rgb(0 0 0/.75))}
  .slogan{font-size:clamp(28px,8.4vw,44px)}
  .k-band.end{top:calc(var(--bar-b,96px) + 2vh);bottom:auto}
  .k-band.intro h2{color:#f6f0e4;text-shadow:0 2px 18px rgb(0 0 0/.6)}.scroll-hint{color:#cfc6b8}
  .frame::before,.frame::after{height:20px;background-size:100% 10px}
  .reel{width:62vw;right:-24vw}
}

/* static: reduced motion or no video. Show the final composition, still. */
.k-static .heroes,.k-static .lines{display:none}
.k-static .finale{position:relative;inset:auto;opacity:1;order:2}
.k-static .slogan-local{opacity:1}
.hero.k-static .k-stage{background:var(--stage) var(--k-poster) center 85%/contain no-repeat;padding-top:calc(var(--bar-h) + 6vh)}
@media (prefers-reduced-motion:reduce){html{scroll-behavior:auto}}