@import url('https://fonts.googleapis.com/css2?family=Cairo:wght@600;800;900&family=IBM+Plex+Sans+Arabic:wght@400;500;600&display=swap');

:root{
  --ink:#04100c; --bg:#06120e; --bg2:#0b1d17;
  --leaf:#3ddc84; --leaf2:#25a866; --leaf3:#0f5132; --lime:#a7e05b;
  --gold:#e8c372; --water:#5cb8f7; --bark:#cf8a5a;
  --txt:#eef7f1; --mut:#a6c4b6; --line:rgba(255,255,255,.12);
  --glass:rgba(255,255,255,.055);
  --head:'Cairo',system-ui,'Segoe UI',Tahoma,sans-serif;
  --body:'IBM Plex Sans Arabic','Cairo',system-ui,'Segoe UI',Tahoma,sans-serif;
}
*{box-sizing:border-box}
html,body{height:100%}
body{margin:0;background:var(--ink);color:var(--txt);font-family:var(--body);overflow:hidden;-webkit-font-smoothing:antialiased}
button{font:inherit;color:inherit;background:none;border:0;cursor:pointer}
h1,h2,h3{font-family:var(--head);margin:0;line-height:1.25}

#player{position:fixed;inset:0;overflow:hidden;background:var(--bg);isolation:isolate}
#stage{position:absolute;inset:0}
.scene{position:absolute;inset:0;opacity:0;visibility:hidden;transition:opacity .75s ease}
.scene.is-active{opacity:1;visibility:visible}
.art-wrap{position:absolute;inset:-3%;will-change:transform}
.art{position:absolute;inset:0;width:100%;height:100%}
.scene.is-active .art-wrap{animation:kb 17s ease-out both}
@keyframes kb{from{transform:scale(1.04)}to{transform:scale(1.14)}}
.scrim{position:absolute;inset:0;background:linear-gradient(180deg,rgba(4,16,12,.93) 0%,rgba(4,16,12,.42) 40%,rgba(4,16,12,.55) 68%,rgba(4,16,12,.96) 100%)}
.vignette{position:absolute;inset:0;pointer-events:none;z-index:5;background:radial-gradient(125% 95% at 50% 44%,transparent 45%,rgba(0,0,0,.55) 100%)}

.hud{position:absolute;top:0;left:0;right:0;z-index:20;display:flex;justify-content:space-between;align-items:center;padding:clamp(12px,2.4vw,26px) clamp(14px,3vw,32px);pointer-events:none}
.chip{display:inline-flex;align-items:center;gap:9px;padding:9px 16px;border-radius:999px;background:var(--glass);border:1px solid var(--line);backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px);font-size:clamp(12px,1.3vw,15px);font-weight:600}
.chip--brand{font-family:var(--head);font-weight:800}
.leafdot{width:10px;height:10px;border-radius:50%;background:var(--leaf);box-shadow:0 0 0 4px rgba(61,220,132,.16)}
.chip--count .sep{opacity:.45;margin:0 5px}
.side{position:absolute;top:clamp(62px,10vh,100px);left:clamp(12px,2.4vw,26px);z-index:22;display:flex;flex-direction:column;gap:10px}
.icon-btn{width:46px;height:46px;display:grid;place-items:center;border-radius:14px;background:var(--glass);border:1px solid var(--line);backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px);transition:transform .22s ease,background .22s ease,box-shadow .22s ease}
.icon-btn:hover{transform:translateY(-2px);background:rgba(255,255,255,.11);box-shadow:0 10px 24px rgba(0,0,0,.4)}
.icon-btn:focus-visible{outline:2px solid var(--leaf);outline-offset:2px}
.icon-btn.lg{width:52px;height:52px;border-radius:16px}
.icon-btn.txt{font-family:var(--head);font-weight:800;font-size:15px;letter-spacing:.5px}
.icon-btn.txt.on{background:rgba(61,220,132,.18);border-color:rgba(61,220,132,.42);color:var(--lime)}
.ico{display:block;width:22px;height:22px}
.icon-btn.lg .ico{width:24px;height:24px}
.ico svg{width:100%;height:100%;display:block}

.scene-content{position:absolute;z-index:14;top:clamp(64px,12vh,118px);right:clamp(16px,4vw,64px);width:min(640px,56vw);text-align:right;pointer-events:none}
.kicker{display:inline-block;margin:0 0 12px;padding:6px 14px;border-radius:999px;font-size:clamp(11px,1.15vw,14px);font-weight:700;letter-spacing:.4px;color:var(--lime);background:rgba(61,220,132,.12);border:1px solid rgba(61,220,132,.3)}
.stitle{font-size:clamp(25px,3.8vw,58px);font-weight:900;letter-spacing:-.5px;color:#fff;text-shadow:0 6px 30px rgba(0,0,0,.7)}
.points{list-style:none;margin:18px 0 0;padding:0;display:flex;flex-direction:column;gap:10px}
.points li{position:relative;padding:12px 18px 12px 16px;border-radius:14px;background:var(--glass);border:1px solid var(--line);backdrop-filter:blur(12px);-webkit-backdrop-filter:blur(12px);font-size:clamp(13px,1.45vw,17px);font-weight:500;color:var(--txt);box-shadow:0 10px 26px rgba(0,0,0,.32);opacity:0;transform:translateY(14px)}
.points li::before{content:'';position:absolute;right:-1px;top:14px;bottom:14px;width:3px;border-radius:3px;background:linear-gradient(180deg,var(--leaf),var(--leaf2))}
.scene.is-active .kicker{animation:fadeUp .7s cubic-bezier(.22,1,.36,1) both}
.scene.is-active .stitle{animation:fadeUp .8s cubic-bezier(.22,1,.36,1) .12s both}
.scene.is-active .points li{animation:fadeUp .65s cubic-bezier(.22,1,.36,1) forwards}
.scene.is-active .points li:nth-child(1){animation-delay:.34s}
.scene.is-active .points li:nth-child(2){animation-delay:.46s}
.scene.is-active .points li:nth-child(3){animation-delay:.58s}
.scene.is-active .points li:nth-child(4){animation-delay:.7s}
@keyframes fadeUp{from{opacity:0;transform:translateY(14px)}to{opacity:1;transform:translateY(0)}}
.label{position:absolute;z-index:13;transform:translate(-50%,-50%);padding:7px 14px;border-radius:999px;font-size:clamp(11px,1.15vw,14px);font-weight:700;white-space:nowrap;color:#eaf7ef;background:rgba(6,18,14,.62);border:1px solid rgba(255,255,255,.18);backdrop-filter:blur(10px);-webkit-backdrop-filter:blur(10px);opacity:0}
.label.w{color:#c8e7ff;border-color:rgba(92,184,247,.45);background:rgba(9,31,46,.7)}
.label.b{color:#ffdcc2;border-color:rgba(207,138,90,.45);background:rgba(43,25,13,.7)}
.scene.is-active .label{animation:labelIn .6s cubic-bezier(.22,1,.36,1) .72s forwards}
@keyframes labelIn{from{opacity:0;transform:translate(-50%,-50%) scale(.88)}to{opacity:1;transform:translate(-50%,-50%) scale(1)}}

.scene-tree{position:absolute;z-index:14;inset:clamp(86px,14vh,140px) 0 0 0;display:flex;justify-content:flex-end;align-items:flex-start;padding:0 clamp(14px,4vw,60px);overflow:auto}
.tree,.tree ul{list-style:none;margin:0;padding:0}
.tree ul{position:relative;margin-right:26px}
.tree ul::before{content:'';position:absolute;right:-13px;top:6px;bottom:14px;width:2px;background:linear-gradient(180deg,rgba(61,220,132,.5),rgba(61,220,132,.14))}
.tree li{position:relative;margin:5px 0}
.tree ul>li::before{content:'';position:absolute;right:-13px;top:21px;width:13px;height:2px;background:rgba(61,220,132,.4)}
.node{display:inline-block;padding:8px 14px;border-radius:12px;background:var(--glass);border:1px solid var(--line);backdrop-filter:blur(10px);-webkit-backdrop-filter:blur(10px);font-weight:600;opacity:0}
.scene.is-active .node,.scene.is-active .leaf-node{animation:fadeUp .55s cubic-bezier(.22,1,.36,1) both}
.node.root{background:rgba(61,220,132,.16);border-color:rgba(61,220,132,.45);color:#eaffef;font-family:var(--head);font-weight:900;font-size:1.1em}
.node.nv{background:rgba(232,195,114,.14);border-color:rgba(232,195,114,.38);color:#ffeec9}
.node.v{background:rgba(92,184,247,.14);border-color:rgba(92,184,247,.38);color:#d6ecff}
.leaf-node{display:inline-block;padding:5px 2px;color:var(--mut);font-size:.94em;opacity:0}
#captionWrap{position:absolute;z-index:16;left:50%;transform:translateX(-50%);bottom:clamp(110px,17vh,170px);width:min(1080px,88vw);display:flex;justify-content:center;transition:opacity .3s ease,transform .3s ease}
#captionWrap.hide{opacity:0;pointer-events:none}
#capText{margin:0;padding:clamp(11px,1.5vw,18px) clamp(16px,2.4vw,30px);border-radius:16px;background:rgba(3,12,9,.64);border:1px solid rgba(255,255,255,.12);backdrop-filter:blur(16px);-webkit-backdrop-filter:blur(16px);font-size:clamp(13px,1.55vw,20px);line-height:1.75;text-align:center;color:#f4fbf6;text-shadow:0 2px 12px rgba(0,0,0,.6);box-shadow:0 16px 40px rgba(0,0,0,.4)}
#captionWrap.flash{animation:capFlash .5s ease}
@keyframes capFlash{from{opacity:.2}to{opacity:1}}

#controls{position:absolute;z-index:18;left:0;right:0;bottom:0;padding:0 clamp(12px,3vw,40px) clamp(12px,3vh,26px)}
#bar{position:relative;height:7px;border-radius:99px;background:rgba(255,255,255,.14);cursor:pointer;margin-bottom:14px}
#bar:hover{background:rgba(255,255,255,.22)}
#barFill{position:absolute;top:0;right:0;bottom:0;width:0;border-radius:99px;background:linear-gradient(270deg,var(--leaf2),var(--leaf),var(--lime));box-shadow:0 0 14px rgba(61,220,132,.45)}
#barKnob{position:absolute;top:50%;right:0;width:15px;height:15px;border-radius:50%;background:#fff;transform:translate(50%,-50%);box-shadow:0 3px 12px rgba(0,0,0,.55);opacity:0;transition:opacity .2s,right .1s linear}
#bar:hover #barKnob,#bar:focus-visible #barKnob{opacity:1}
#bar:focus-visible{outline:2px solid var(--leaf);outline-offset:4px}
.ctrl-row{display:flex;align-items:center;justify-content:space-between;gap:14px;flex-wrap:wrap}
.ctrl-group{display:flex;align-items:center;gap:10px}
.ctrl-meta{font-size:clamp(11px,1.2vw,14px);color:var(--mut);letter-spacing:.5px;font-variant-numeric:tabular-nums}
.btn-play{width:64px;height:64px;display:grid;place-items:center;border-radius:50%;background:linear-gradient(145deg,var(--leaf),var(--leaf2));color:#04120c;box-shadow:0 12px 32px rgba(37,168,102,.4);transition:transform .22s ease,box-shadow .22s ease}
.btn-play:hover{transform:translateY(-2px) scale(1.04);box-shadow:0 18px 42px rgba(37,168,102,.58)}
.btn-play:focus-visible{outline:2px solid var(--lime);outline-offset:3px}
.btn-play .ico{width:26px;height:26px}

#drawer{position:absolute;z-index:30;top:0;right:0;height:100%;width:min(340px,86vw);padding:clamp(22px,4vh,44px) clamp(16px,3vw,28px);background:rgba(4,16,12,.88);backdrop-filter:blur(22px);-webkit-backdrop-filter:blur(22px);border-left:1px solid var(--line);transform:translateX(103%);transition:transform .36s cubic-bezier(.22,1,.36,1);overflow:auto}
#drawer.open{transform:translateX(0)}
#drawer h2{font-size:clamp(15px,1.6vw,19px);font-weight:800;color:var(--lime);margin-bottom:16px}
#drawerList{list-style:none;margin:0;padding:0;display:flex;flex-direction:column;gap:6px}
#drawerList button{width:100%;display:flex;gap:12px;align-items:flex-start;text-align:right;padding:11px 13px;border-radius:12px;font-size:clamp(12px,1.25vw,15px);transition:background .2s ease,transform .2s ease}
#drawerList button:hover{background:rgba(255,255,255,.08);transform:translateX(-3px)}
#drawerList button.cur{background:rgba(61,220,132,.16);outline:1px solid rgba(61,220,132,.34)}
#drawerList .num{flex:0 0 auto;min-width:24px;height:24px;display:grid;place-items:center;border-radius:8px;background:rgba(255,255,255,.1);font-size:12px;font-weight:700;font-family:var(--head)}
#veil{position:absolute;inset:0;z-index:29;background:rgba(2,8,6,.5);opacity:0;pointer-events:none;transition:opacity .3s ease}
#veil.on{opacity:1;pointer-events:auto}
.overlay{position:absolute;inset:0;z-index:40;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:16px;text-align:center;padding:clamp(22px,5vw,60px);background:radial-gradient(120% 100% at 50% 30%,rgba(13,72,49,.95),rgba(3,10,8,.98));transition:opacity .45s ease,visibility .45s}
.overlay.hidden{opacity:0;visibility:hidden;pointer-events:none}
.ov-kicker{margin:0;font-size:clamp(11px,1.3vw,14px);font-weight:700;letter-spacing:2px;color:var(--lime)}
.ov-title{margin:0;font-size:clamp(32px,6.6vw,76px);font-weight:900;letter-spacing:-1px;background:linear-gradient(100deg,#ffffff,var(--leaf) 55%,var(--lime));-webkit-background-clip:text;background-clip:text;-webkit-text-fill-color:transparent}
.ov-title.sm{font-size:clamp(24px,4.2vw,50px)}
.ov-sub{margin:0;max-width:660px;font-size:clamp(13px,1.7vw,20px);color:#cfe6d9;line-height:1.8}
.ov-tags{display:flex;flex-wrap:wrap;gap:8px;justify-content:center}
.ov-tags span{padding:7px 14px;border-radius:999px;background:var(--glass);border:1px solid var(--line);font-size:clamp(11px,1.2vw,14px);color:var(--mut)}
.btn-primary{display:inline-flex;align-items:center;gap:11px;padding:16px 34px;border-radius:999px;font-family:var(--head);font-weight:800;font-size:clamp(14px,1.6vw,19px);color:#04120c;background:linear-gradient(145deg,var(--leaf),var(--leaf2));box-shadow:0 16px 44px rgba(37,168,102,.42);transition:transform .22s ease,box-shadow .22s ease}
.btn-primary:hover{transform:translateY(-3px);box-shadow:0 22px 54px rgba(37,168,102,.6)}
.btn-primary .ico{width:22px;height:22px}
.ov-note{margin:0;max-width:580px;font-size:clamp(11px,1.2vw,14px);color:var(--mut);line-height:1.9}

@media(max-width:900px){
  .scene-content{top:auto;bottom:clamp(148px,27vh,236px);right:16px;left:16px;width:auto;text-align:right}
  .stitle{font-size:clamp(23px,6.2vw,38px)}
  .points li{font-size:14px;padding:10px 14px}
  #captionWrap{bottom:clamp(118px,21vh,166px);width:94vw}
  .hud{padding:12px 14px}
  .side{top:auto;left:14px;bottom:clamp(96px,16vh,140px);flex-direction:row}
  .scene-tree{inset:clamp(84px,14vh,130px) 0 0 0;padding:0 14px}
}
@media(max-width:620px){
  .tree ul{margin-right:14px}
  .node{padding:6px 10px;border-radius:10px;font-size:13px}
  .leaf-node{font-size:12px}
  .btn-play{width:56px;height:56px}
  .icon-btn.lg{width:46px;height:46px;border-radius:14px}
  #captionWrap{bottom:clamp(112px,20vh,150px)}
  .ctrl-meta{display:none}
}
@media(prefers-reduced-motion:reduce){
  .scene.is-active .art-wrap{animation:none}
  .points li,.node,.leaf-node,.kicker,.stitle{animation:none!important;opacity:1!important;transform:none!important}
  .label{animation:none!important;opacity:1!important}
}