/* Giáng Sinh Reborn */
:root{--red:#e0303f;--red2:#a3151f;--green:#23a05a;--gold:#ffd36b;--gold2:#ff9d2e;--ice:#bfe6ff;--ink:#050b1f;--rc:#5a7bff}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;min-height:100vh;color:#eaf3ff;font-family:"Segoe UI","Nunito",system-ui,sans-serif;background:linear-gradient(180deg,#040a1d 0%,#0b2347 48%,#12404f 100%);background-attachment:fixed;overflow-x:hidden}
img{max-width:100%}
#xSky,#xSnow,#xFx{position:fixed;inset:0;width:100%;height:100%;pointer-events:none}
#xSky{z-index:0}#xSnow{z-index:6}#xFx{z-index:60}

/* ===== nền ===== */
.x-aurora{position:fixed;inset:0;z-index:0;pointer-events:none;overflow:hidden;opacity:.7}
.x-aurora i{position:absolute;left:-20%;width:140%;height:46vh;filter:blur(60px);opacity:.55;border-radius:50%;animation:xAur 16s ease-in-out infinite alternate}
.x-aurora i:nth-child(1){top:-12vh;background:radial-gradient(ellipse at 30% 50%,rgba(60,255,170,.7),transparent 62%)}
.x-aurora i:nth-child(2){top:-4vh;background:radial-gradient(ellipse at 70% 50%,rgba(90,150,255,.65),transparent 60%);animation-duration:21s;animation-delay:-6s}
.x-aurora i:nth-child(3){top:4vh;background:radial-gradient(ellipse at 50% 50%,rgba(255,90,160,.35),transparent 60%);animation-duration:25s;animation-delay:-11s}
@keyframes xAur{from{transform:translateX(-6%) skewX(-6deg)}to{transform:translateX(6%) skewX(8deg)}}
.x-moon{position:fixed;right:9vw;top:13vh;width:clamp(70px,9vw,130px);aspect-ratio:1;border-radius:50%;z-index:0;pointer-events:none;
  background:radial-gradient(circle at 36% 34%,#fffdf2,#f1e7c0 55%,#d8cc9c);box-shadow:0 0 60px 22px rgba(255,244,200,.35),0 0 180px 80px rgba(255,244,200,.14)}

/* ===== dây đèn + quả châu ===== */
.x-garland{position:absolute;top:0;left:0;right:0;height:96px;z-index:30;pointer-events:none;overflow:hidden}
.x-garland svg{position:absolute;inset:0;width:100%;height:100%}
#xBulbs{position:absolute;inset:0}
.x-bulb{position:absolute;width:12px;height:18px;border-radius:50% 50% 50% 50%/40% 40% 60% 60%;transform:translate(-50%,0);animation:xTw 2.4s ease-in-out infinite}
.x-bulb:before{content:"";position:absolute;left:3px;top:-5px;width:6px;height:7px;background:#17331f;border-radius:2px}
@keyframes xTw{0%,100%{opacity:1;filter:brightness(1.3);box-shadow:0 0 14px 4px var(--c)}50%{opacity:.35;filter:brightness(.7);box-shadow:0 0 4px 1px var(--c)}}
.x-orb{position:absolute;top:0;width:clamp(46px,6vw,84px);z-index:31;transform-origin:50% -60px;animation:xSwing 4.5s ease-in-out infinite;filter:drop-shadow(0 10px 14px rgba(0,0,0,.5));pointer-events:none}
.x-orb:before{content:""}
.x-orb-l{left:6vw;margin-top:60px}
.x-orb-r{right:14vw;margin-top:70px;animation-delay:-2s}
@keyframes xSwing{0%,100%{transform:rotate(7deg)}50%{transform:rotate(-7deg)}}

/* ===== thanh trên ===== */
.x-nav{position:sticky;top:0;z-index:40;display:flex;align-items:center;gap:22px;padding:12px 26px;margin-top:0;background:linear-gradient(180deg,rgba(4,10,29,.82),rgba(4,10,29,.35));backdrop-filter:blur(8px);border-bottom:1px solid rgba(255,255,255,.07)}
.x-brand{font-weight:900;font-size:19px;color:#fff;text-decoration:none;letter-spacing:1px}
.x-brand span{color:var(--gold)}
.x-nav nav{display:flex;gap:6px;margin-left:10px;flex:1;flex-wrap:wrap}
.x-nav nav a{color:#cfe0f5;text-decoration:none;font-weight:700;font-size:14px;padding:7px 13px;border-radius:999px;transition:.2s}
.x-nav nav a:hover{background:rgba(255,255,255,.1);color:#fff}
.x-user{font-weight:800;font-size:14px;color:#dbe8f7}
.x-user i{color:var(--gold);margin-right:4px}
.x-login{background:linear-gradient(180deg,var(--red),var(--red2));color:#fff;padding:8px 18px;border-radius:999px;text-decoration:none;font-weight:800;box-shadow:0 6px 18px rgba(224,48,63,.45)}

.x-main{position:relative;z-index:10}

/* ===== hero ===== */
.x-hero{position:relative;min-height:calc(100vh - 56px);display:flex;flex-direction:column;align-items:center;justify-content:center;text-align:center;padding:90px 20px 70px}
.x-eyebrow{letter-spacing:6px;font-size:12px;font-weight:800;color:var(--gold);text-shadow:0 0 14px rgba(255,211,107,.6)}
.x-title{position:relative;margin:14px 0 6px;font-size:clamp(42px,9.2vw,118px);line-height:1;font-weight:900;letter-spacing:2px;color:#fff;text-shadow:0 6px 40px rgba(0,0,0,.5)}
.x-title em{font-style:normal;background:linear-gradient(180deg,#fff7d1 5%,var(--gold) 45%,var(--gold2) 100%);-webkit-background-clip:text;background-clip:text;-webkit-text-fill-color:transparent;filter:drop-shadow(0 0 22px rgba(255,170,60,.55))}
.x-hat{position:absolute;left:-.1em;top:-.52em;width:.56em;height:.5em;background:url(/lib/model/items/toy_19064.png) center/contain no-repeat;transform:rotate(-14deg);filter:drop-shadow(0 6px 10px rgba(0,0,0,.5));animation:xBob 3s ease-in-out infinite}
@keyframes xBob{50%{transform:rotate(-8deg) translateY(-4px)}}
.x-lead{max-width:720px;margin:10px auto 0;font-size:clamp(15px,2vw,19px);line-height:1.65;color:#d3e3f6}
.x-cta{display:flex;gap:14px;flex-wrap:wrap;justify-content:center;margin-top:30px}
.x-scroll{margin-top:44px;color:#9fc4e8;animation:xBounce 1.8s ease-in-out infinite;font-size:22px}
@keyframes xBounce{50%{transform:translateY(8px);opacity:.5}}

.x-count{display:flex;gap:12px;justify-content:center;margin-top:30px;position:relative}
.x-count:before{content:attr(data-label);position:absolute;top:-26px;left:0;right:0;font-size:12px;letter-spacing:3px;font-weight:800;color:#a8c8e8;text-transform:uppercase}
.x-cd{min-width:78px;padding:14px 8px 10px;border-radius:14px;background:linear-gradient(180deg,rgba(255,255,255,.14),rgba(255,255,255,.04));border:1px solid rgba(255,255,255,.18);box-shadow:0 12px 30px rgba(0,0,0,.35);backdrop-filter:blur(8px)}
.x-cd b{display:block;font-size:clamp(28px,5vw,44px);font-weight:900;font-variant-numeric:tabular-nums;color:#fff}
.x-cd span{font-size:11px;letter-spacing:2px;color:#a8c8e8;text-transform:uppercase;font-weight:700}

.x-btn{display:inline-block;border:0;cursor:pointer;text-decoration:none;color:#fff;font-weight:900;letter-spacing:1px;font-size:15px;padding:14px 30px;border-radius:12px;background:linear-gradient(180deg,var(--red),var(--red2));box-shadow:0 10px 26px rgba(224,48,63,.45);transition:transform .15s,filter .15s;position:relative;overflow:hidden}
.x-btn:hover{transform:translateY(-3px);filter:brightness(1.1)}
.x-btn-gold{color:#3a2200;background:linear-gradient(180deg,#ffe597,var(--gold2));box-shadow:0 10px 30px rgba(255,170,60,.45)}
.x-btn-gold:after{content:"";position:absolute;top:0;left:-70%;width:45%;height:100%;background:linear-gradient(100deg,transparent,rgba(255,255,255,.6),transparent);animation:xSweep 3.2s ease-in-out infinite}
@keyframes xSweep{0%{left:-70%}55%,100%{left:140%}}
.x-btn-ghost{background:rgba(255,255,255,.1);border:1px solid rgba(255,255,255,.28);box-shadow:none}

/* ===== phần ===== */
.x-section{max-width:1220px;margin:0 auto;padding:60px 20px}
.x-sec-head{text-align:center;margin-bottom:34px}
.x-sec-eyebrow{letter-spacing:5px;font-size:12px;font-weight:800;color:var(--gold)}
.x-sec-head h2,.x-case h2{margin:8px 0;font-size:clamp(28px,4.4vw,48px);font-weight:900;color:#fff;text-shadow:0 4px 24px rgba(0,0,0,.4)}
.x-sec-head p{max-width:640px;margin:0 auto;color:#bcd3ea;line-height:1.6}
.x-progress{position:relative;max-width:420px;height:14px;margin:22px auto 0;border-radius:99px;background:rgba(255,255,255,.12);overflow:hidden}
.x-progress div{height:100%;width:0;background:linear-gradient(90deg,var(--green),#7dffb0);box-shadow:0 0 16px #5dffa0;transition:width .8s}
.x-progress span{position:absolute;inset:0;display:flex;align-items:center;justify-content:center;font-size:10px;font-weight:900;letter-spacing:1px;color:#06240f}

/* ===== lịch ===== */
.x-doors{display:grid;grid-template-columns:repeat(6,1fr);gap:16px}
.x-door{--rc:#5a7bff;position:relative;aspect-ratio:1/1.12;border-radius:16px;cursor:pointer;overflow:hidden;color:#fff;
  background:linear-gradient(160deg,rgba(255,255,255,.14),rgba(255,255,255,.04) 45%,rgba(0,0,0,.2));border:1px solid rgba(255,255,255,.16);box-shadow:0 12px 28px rgba(0,0,0,.35);transition:transform .25s,box-shadow .25s;user-select:none}
.x-door[data-rarity=rare]{--rc:#9a5cff}.x-door[data-rarity=epic]{--rc:#e437f0}.x-door[data-rarity=legendary]{--rc:#ffc83d}
.x-door:hover{transform:translateY(-6px) rotate(-.6deg)}
.x-door-num{position:absolute;left:10px;top:8px;font-size:clamp(22px,2.8vw,34px);font-weight:900;color:#fff;text-shadow:0 2px 10px rgba(0,0,0,.6);z-index:3}
.x-door-num small{font-size:.42em;opacity:.7;margin-left:2px}
.x-door img{position:absolute;left:50%;top:52%;width:62%;transform:translate(-50%,-50%);filter:drop-shadow(0 8px 10px rgba(0,0,0,.55));transition:transform .3s;max-height:58%;object-fit:contain}
.x-door:hover img{transform:translate(-50%,-52%) scale(1.08)}
.x-door-name{position:absolute;left:6px;right:6px;bottom:9px;text-align:center;font-size:12px;font-weight:800;line-height:1.15;text-shadow:0 1px 8px #000;z-index:3}
.x-door-badge{position:absolute;right:8px;top:8px;width:26px;height:26px;border-radius:50%;display:flex;align-items:center;justify-content:center;font-size:12px;z-index:3}
.x-door[data-state=locked]{filter:saturate(.35) brightness(.78)}
.x-door[data-state=locked] img{filter:grayscale(1) brightness(.8) drop-shadow(0 6px 8px #000)}
.x-door[data-state=locked] .x-door-badge{background:rgba(0,0,0,.5);color:#cfd8e3}
.x-door[data-state=ready]{border-color:var(--gold);background:linear-gradient(160deg,rgba(224,48,63,.5),rgba(163,21,31,.35) 55%,rgba(0,0,0,.2));animation:xReady 1.8s ease-in-out infinite}
.x-door[data-state=ready] .x-door-badge{background:var(--gold);color:#4a2b00}
.x-door[data-state=ready]:after{content:"";position:absolute;inset:0;background:radial-gradient(circle at 50% 110%,rgba(255,211,107,.55),transparent 62%)}
@keyframes xReady{50%{box-shadow:0 12px 34px rgba(255,211,107,.55),0 0 0 2px rgba(255,211,107,.8)}}
.x-door[data-state=claimed]{border-color:color-mix(in srgb,var(--rc) 70%,#fff);background:linear-gradient(160deg,color-mix(in srgb,var(--rc) 30%,#142038),#0d1830)}
.x-door[data-state=claimed] .x-door-badge{background:var(--green);color:#fff}
.x-door[data-state=claimed]:before{content:"";position:absolute;inset:0;background:radial-gradient(circle at 50% 100%,color-mix(in srgb,var(--rc) 45%,transparent),transparent 68%)}

/* ===== quà đặc biệt 25/12 ===== */
.x-special{position:relative;border-radius:26px;overflow:hidden;padding:44px;display:grid;grid-template-columns:1.1fr 1fr;gap:26px;align-items:center;
  background:radial-gradient(circle at 80% 30%,rgba(255,200,61,.28),transparent 55%),linear-gradient(135deg,#3a0c14,#14213f 62%,#0c3a2a);border:1px solid rgba(255,211,107,.45);box-shadow:0 24px 60px rgba(0,0,0,.5),0 0 60px rgba(255,200,61,.14)}
.x-special:before{content:"";position:absolute;inset:0;background:repeating-conic-gradient(from 0deg at 78% 45%,rgba(255,211,107,.07) 0 8deg,transparent 8deg 20deg);animation:xRot 40s linear infinite}
@keyframes xRot{to{filter:hue-rotate(40deg)}}
.x-special>*{position:relative}
.x-special h2{margin:8px 0;font-size:clamp(28px,4.2vw,46px);font-weight:900}
.x-special p{color:#cfe0f5;line-height:1.65}
.x-special .tag{display:inline-block;padding:6px 16px;border-radius:99px;background:var(--gold);color:#4a2b00;font-weight:900;letter-spacing:2px;font-size:12px}
.x-special img.car{width:100%;border-radius:16px;box-shadow:0 20px 50px rgba(0,0,0,.6),0 0 40px rgba(255,200,61,.3);animation:xFloat 4s ease-in-out infinite}
@keyframes xFloat{50%{transform:translateY(-8px)}}
.x-special .x-btn{margin-top:18px}

/* ===== hộp quà ===== */
.x-case{display:grid;grid-template-columns:1fr 1.1fr;gap:30px;align-items:center;padding:36px;border-radius:26px;text-decoration:none;color:#fff;position:relative;overflow:hidden;
  background:radial-gradient(circle at 15% 20%,rgba(224,48,63,.45),transparent 55%),linear-gradient(135deg,#1a0d22,#0e1e3f);border:1px solid rgba(255,255,255,.2);box-shadow:0 24px 60px rgba(0,0,0,.5);transition:transform .3s}
.x-case:hover{transform:translateY(-6px)}
.x-case-art{position:relative;height:280px}
.x-case-art img{position:absolute;filter:drop-shadow(0 16px 20px rgba(0,0,0,.55))}
.x-case-art img:first-child{left:50%;top:50%;width:46%;transform:translate(-50%,-50%);animation:xFloat 3.6s ease-in-out infinite;z-index:2}
.x-case-art img.s{left:0;top:8%;width:48%;border-radius:12px;transform:rotate(-8deg)}
.x-case-art img.s2{right:0;bottom:6%;width:46%;border-radius:12px;transform:rotate(7deg)}
.x-case-body p{color:#cfe0f5;line-height:1.65}
.x-case-meta{display:flex;gap:16px;align-items:center;flex-wrap:wrap;margin-top:18px}
.x-case-meta span:first-child{font-weight:800;color:#bfe6ff}
.x-case-meta i.fa-gem{color:#5cd6ff}

/* ===== faq ===== */
.x-faq{max-width:820px;margin:0 auto;display:grid;gap:12px}
.x-faq details{background:rgba(255,255,255,.07);border:1px solid rgba(255,255,255,.13);border-radius:14px;padding:16px 20px;backdrop-filter:blur(6px)}
.x-faq summary{cursor:pointer;font-weight:800;font-size:16px}
.x-faq p{margin:10px 0 2px;color:#c3d6ea;line-height:1.65}

/* ===== footer ===== */
.x-footer{position:relative;z-index:10;margin-top:40px;padding-top:120px}
.x-trees{position:absolute;left:0;right:0;bottom:0;height:150px;background:
  url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 120 150'%3E%3Cg fill='%23062a1a'%3E%3Cpath d='M60 6 L88 56 H72 L98 98 H78 L108 146 H12 L42 98 H22 L48 56 H32 Z'/%3E%3C/g%3E%3C/svg%3E") repeat-x bottom/110px 140px,
  url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 120 150'%3E%3Cg fill='%23093a24'%3E%3Cpath d='M60 6 L88 56 H72 L98 98 H78 L108 146 H12 L42 98 H22 L48 56 H32 Z'/%3E%3C/g%3E%3C/svg%3E") repeat-x 40px bottom/150px 190px;opacity:.95}
.x-foot-text{position:relative;text-align:center;padding:26px 16px 30px;background:linear-gradient(180deg,transparent,rgba(2,10,6,.8));font-weight:700;color:#bfe0cc;font-size:14px}
.x-foot-text i{color:var(--red)}

/* ===== modal mở quà ===== */
.x-modal{position:fixed;inset:0;z-index:70;display:none;align-items:center;justify-content:center;background:radial-gradient(circle,rgba(6,16,40,.82),rgba(2,6,16,.95));backdrop-filter:blur(6px)}
.x-modal.show{display:flex;animation:xFade .3s}
@keyframes xFade{from{opacity:0}}
.x-modal-box{position:relative;width:min(520px,92vw);text-align:center;padding:20px}
.x-open-stage{height:260px;display:flex;align-items:center;justify-content:center}
.x-open-stage img{width:220px;filter:drop-shadow(0 20px 26px rgba(0,0,0,.6))}
.x-open-stage.shake img{animation:xShake .1s linear infinite}
.x-open-stage.pop img{animation:xPop .5s cubic-bezier(.2,1.5,.4,1) forwards}
@keyframes xShake{0%{transform:translate(-5px,2px) rotate(-4deg)}50%{transform:translate(5px,-3px) rotate(4deg)}100%{transform:translate(-3px,3px) rotate(-3deg)}}
@keyframes xPop{to{transform:scale(0);opacity:0}}
.x-reward{display:none;margin-top:-250px;padding:22px 20px 26px;border-radius:22px;--rc:#5a7bff;
  background:linear-gradient(180deg,rgba(255,255,255,.16),rgba(255,255,255,.05));border:2px solid var(--rc);box-shadow:0 0 50px color-mix(in srgb,var(--rc) 60%,transparent),0 24px 60px rgba(0,0,0,.5)}
.x-reward.show{display:block;animation:xReveal .7s cubic-bezier(.2,1.3,.3,1)}
@keyframes xReveal{from{transform:scale(.3) rotate(-8deg);opacity:0}to{transform:none;opacity:1}}
.x-reward .r-day{letter-spacing:4px;font-size:12px;font-weight:800;color:var(--gold)}
.x-reward .r-art{height:200px;display:flex;align-items:center;justify-content:center;margin:8px 0}
.x-reward .r-art img{max-height:100%;max-width:92%;object-fit:contain;filter:drop-shadow(0 14px 20px rgba(0,0,0,.55)) drop-shadow(0 0 22px color-mix(in srgb,var(--rc) 55%,transparent));border-radius:8px}
.x-reward h3{margin:6px 0 2px;font-size:28px;font-weight:900;color:#fff}
.x-reward .r-rar{display:inline-block;padding:4px 16px;border-radius:99px;background:var(--rc);color:#0c0f18;font-weight:900;font-size:12px;letter-spacing:2px;text-transform:uppercase}
.x-reward p{color:#c3d6ea;font-size:14px;line-height:1.55;margin:12px 6px 0}
#xModalClose{margin-top:18px}

.x-toast{position:fixed;left:50%;top:84px;transform:translate(-50%,-20px);background:#c53a3a;color:#fff;padding:12px 22px;border-radius:12px;font-weight:700;opacity:0;transition:.3s;z-index:80;pointer-events:none;max-width:92vw;box-shadow:0 12px 30px rgba(0,0,0,.45)}
.x-toast.show{opacity:1;transform:translate(-50%,0)}
.x-mute{position:fixed;right:18px;bottom:18px;z-index:50;width:44px;height:44px;border-radius:50%;border:1px solid rgba(255,255,255,.2);background:rgba(0,0,0,.45);color:#fff;cursor:pointer;font-size:16px;backdrop-filter:blur(6px)}
.x-mute.off{opacity:.55}
body.is-closed .x-hero-closed{min-height:calc(100vh - 56px)}

@media (max-width:1000px){.x-doors{grid-template-columns:repeat(4,1fr)}.x-special,.x-case{grid-template-columns:1fr;padding:26px}.x-case-art{height:230px}}
@media (max-width:620px){.x-doors{grid-template-columns:repeat(3,1fr);gap:10px}.x-nav{padding:10px 14px;gap:10px}.x-nav nav a{padding:6px 9px;font-size:12px}.x-brand{font-size:16px}.x-cd{min-width:62px;padding:10px 4px 8px}.x-door-name{font-size:10px}.x-moon{display:none}.x-orb-r{display:none}}
@media (prefers-reduced-motion:reduce){.x-bulb,.x-orb,.x-aurora i,.x-btn-gold:after,.x-door[data-state=ready],.x-hat{animation:none!important}}