/* ── Reset ──────────────────────────────────────────────── */
*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}

/* ── Tokens ────────────────────────────────────────────── */
:root{
  --font:'Inter',-apple-system,BlinkMacSystemFont,'Segoe UI',sans-serif;
  --r:12px;
  --r-lg:16px;
  --t:.18s ease;
  --blue:#3b82f6;
  --blue-dk:#2563eb;
  --blue-ring:rgba(59,130,246,.10);
  --green:#22c55e;
  --red:#ef4444;
  --crystal:#7c3aed;
  --crystal-bg:#f5f3ff;
  --crystal-border:#ddd6fe;
  --crystal-text:#6d28d9;
}

[data-theme="light"]{
  --page:#f5f5f4;
  --card:#ffffff;
  --input-bg:#f9fafb;
  --input-border:#e5e7eb;
  --border:#f3f4f6;
  --border-md:#e5e7eb;
  --txt:#1f2937;
  --txt2:#6b7280;
  --txt3:#9ca3af;
  --txt4:#d1d5db;
  --card-shadow:0 20px 60px rgba(0,0,0,.06), 0 1px 3px rgba(0,0,0,.04);
  --hover-border:#d1d5db;
  --hover-shadow:0 4px 12px rgba(0,0,0,.08);
}

[data-theme="dark"]{
  --page:#0f0f0f;
  --card:#1a1a1a;
  --input-bg:#222;
  --input-border:#333;
  --border:#262626;
  --border-md:#333;
  --txt:#e5e5e5;
  --txt2:#888;
  --txt3:#555;
  --txt4:#333;
  --card-shadow:0 20px 60px rgba(0,0,0,.4), 0 0 0 1px rgba(255,255,255,.04);
  --hover-border:#555;
  --hover-shadow:0 4px 12px rgba(0,0,0,.3);
  --crystal-bg:rgba(124,58,237,.1);
  --crystal-border:#4c1d95;
  --crystal-text:#a78bfa;
  --blue-ring:rgba(59,130,246,.15);
}

/* ── Base ──────────────────────────────────────────────── */
html{font-size:16px;-webkit-text-size-adjust:100%}
body{
  font-family:var(--font);background:var(--page);color:var(--txt);
  line-height:1.5;min-height:100dvh;-webkit-font-smoothing:antialiased;
  transition:background var(--t),color var(--t);
}
.hidden{display:none!important}

/* ── Shell ─────────────────────────────────────────────── */
.shell{
  min-height:100dvh;display:flex;
  align-items:center;justify-content:center;padding:16px;
}
.card{
  width:100%;max-width:480px;
  background:var(--card);border-radius:var(--r-lg);
  box-shadow:var(--card-shadow);border:1px solid var(--border);
  overflow:hidden;transition:background var(--t),border-color var(--t);
}

/* ── Header ────────────────────────────────────────────── */
.hdr{
  display:flex;align-items:center;justify-content:space-between;
  padding:20px 24px;border-bottom:1px solid var(--border);
}
.hdr__brand{display:flex;align-items:center;gap:10px}
.hdr__emoji{font-size:1.8rem;filter:drop-shadow(0 1px 2px rgba(0,0,0,.1))}
.hdr__text{display:flex;flex-direction:column;gap:1px}
.hdr__name{font-size:1.15rem;font-weight:700;letter-spacing:-.02em;line-height:1.2}
.hdr__sub{font-size:.6rem;font-weight:500;letter-spacing:.08em;color:var(--txt3);text-transform:uppercase}
.hdr__right{display:flex;align-items:center;gap:10px}

/* Balance — crystal purple */
.bal{
  display:flex;align-items:center;gap:5px;
  padding:6px 12px;
  background:var(--crystal-bg);border:1px solid var(--crystal-border);
  border-radius:20px;font-weight:700;font-size:.85rem;
  color:var(--crystal-text);white-space:nowrap;
}
.bal__icon{width:13px;height:13px;flex-shrink:0}

/* Theme toggle */
.hdr__theme{
  background:none;border:none;color:var(--txt3);
  cursor:pointer;padding:4px;display:flex;transition:color var(--t);
}
.hdr__theme:hover{color:var(--txt2)}
.hdr__theme svg{width:20px;height:20px}
[data-theme="dark"] .icon-moon{display:none}
[data-theme="light"] .icon-sun{display:none}

/* ── Body ──────────────────────────────────────────────── */
.body{padding:24px}

/* ── Prompt ────────────────────────────────────────────── */
.prompt-wrap{position:relative;margin-bottom:4px}
.prompt-input{
  width:100%;padding:14px 56px 14px 16px;
  background:var(--input-bg);border:1px solid var(--input-border);
  border-radius:var(--r);color:var(--txt);
  font:inherit;font-size:.9375rem;font-weight:500;
  resize:none;outline:none;min-height:84px;line-height:1.5;
  transition:all var(--t);
}
.prompt-input:focus{background:var(--card);border-color:var(--blue);box-shadow:0 0 0 4px var(--blue-ring)}
.prompt-input::placeholder{color:var(--txt3);font-weight:400}

.prompt-actions{position:absolute;right:10px;bottom:10px;display:flex;gap:6px}
.prompt-upload{
  display:flex;align-items:center;justify-content:center;
  width:36px;height:36px;background:var(--card);
  border:1px solid var(--input-border);border-radius:10px;
  color:var(--txt3);cursor:pointer;box-shadow:0 1px 3px rgba(0,0,0,.05);
  transition:all var(--t);
}
.prompt-upload:hover{border-color:var(--blue);color:var(--blue)}
.prompt-upload svg{width:18px;height:18px}

/* Previews */
.prompt-previews{display:flex;gap:8px;padding:8px 0 0}
.prompt-previews:empty{display:none}
.preview-thumb{
  position:relative;width:48px;height:48px;
  border-radius:10px;overflow:hidden;flex-shrink:0;
  border:1px solid var(--input-border);
}
.preview-thumb img{width:100%;height:100%;object-fit:cover}
.preview-thumb__rm{
  position:absolute;inset:0;background:rgba(0,0,0,.45);
  display:flex;align-items:center;justify-content:center;
  opacity:0;cursor:pointer;transition:opacity var(--t);
  border:none;color:#fff;font-size:1.1rem;font-weight:600;
}
.preview-thumb:hover .preview-thumb__rm{opacity:1}

/* Footer row */
.prompt-footer{
  display:flex;align-items:center;justify-content:space-between;
  margin-top:14px;margin-bottom:28px;
}

/* ── Generate btn ──────────────────────────────────────── */
.gen-btn{
  display:inline-flex;align-items:center;gap:8px;
  padding:12px 28px;background:linear-gradient(135deg,#facc15,#eab308);border:none;border-radius:10px;
  color:#1c1917;font:inherit;font-size:.95rem;font-weight:700;cursor:pointer;
  box-shadow:0 4px 14px rgba(234,179,8,.3);
  transition:all var(--t);white-space:nowrap;
}
.gen-btn:hover{background:linear-gradient(135deg,#fde047,#facc15);transform:translateY(-1px);box-shadow:0 6px 20px rgba(234,179,8,.4)}
.gen-btn:active{transform:translateY(0)}
.gen-btn:disabled{opacity:.5;cursor:not-allowed;transform:none;box-shadow:none}
.gen-btn__badge{
  font-size:.7rem;font-weight:600;
  background:rgba(0,0,0,.1);padding:2px 7px;border-radius:8px;
}
.gen-btn--loading .gen-btn__label::after{
  content:'';display:inline-block;width:13px;height:13px;
  border:2px solid rgba(255,255,255,.3);border-top-color:#fff;
  border-radius:50%;animation:spin .7s linear infinite;
  margin-left:8px;vertical-align:middle;
}
@keyframes spin{to{transform:rotate(360deg)}}

/* ── Result ────────────────────────────────────────────── */
.result{margin-bottom:20px}
.result__img{
  width:100%;display:block;max-height:50vh;object-fit:contain;
  border-radius:var(--r);border:1px solid var(--border-md);
  background:#0a0a0a;cursor:zoom-in;
}
.result__bar{display:flex;gap:8px;margin-top:12px}
.rbtn{
  flex:1;display:inline-flex;align-items:center;justify-content:center;gap:6px;
  padding:10px 12px;border:none;border-radius:10px;
  font:inherit;font-size:.8rem;font-weight:500;
  cursor:pointer;transition:all var(--t);text-decoration:none;
}
.rbtn svg{width:16px;height:16px;flex-shrink:0}
.rbtn--fill{background:var(--blue);color:#fff}
.rbtn--fill:hover{background:var(--blue-dk)}
.rbtn--ghost{background:var(--input-bg);color:var(--txt);border:1px solid var(--input-border)}
.rbtn--ghost:hover{border-color:var(--hover-border)}
#newGenBtn{background:rgba(250,204,21,.12);border-color:rgba(234,179,8,.3);color:#a16207;font-weight:600}
#newGenBtn:hover{background:rgba(250,204,21,.22);border-color:rgba(234,179,8,.5)}

/* ── History ───────────────────────────────────────────── */
.hist__head{
  display:flex;align-items:flex-end;justify-content:space-between;
  padding:0 4px;margin-bottom:10px;
}
.hist__title{font-size:.65rem;font-weight:700;letter-spacing:.1em;color:var(--txt3);text-transform:uppercase}
.hist__count{font-size:.6rem;color:var(--txt3)}
.hist__list{display:flex;flex-direction:column;gap:10px;max-height:340px;overflow-y:auto;scrollbar-width:thin;scrollbar-color:var(--border-md) transparent}
.hist__list::-webkit-scrollbar{width:4px}
.hist__list::-webkit-scrollbar-thumb{background:var(--border-md);border-radius:4px}

.hi{
  display:flex;align-items:center;justify-content:space-between;
  padding:12px 14px;background:var(--card);
  border:1px solid var(--border-md);border-radius:var(--r);
  cursor:pointer;transition:all var(--t);
}
.hi:hover{border-color:var(--hover-border);box-shadow:var(--hover-shadow)}
.hi--active{border-color:rgba(59,130,246,.25);box-shadow:0 0 0 1px rgba(59,130,246,.08)}
.hi__left{display:flex;align-items:center;gap:12px;min-width:0;flex:1}
.hi__thumb{
  width:40px;height:40px;border-radius:10px;overflow:hidden;flex-shrink:0;
  background:var(--input-bg);border:1px solid var(--border-md);
  display:flex;align-items:center;justify-content:center;
}
.hi__thumb img{width:100%;height:100%;object-fit:cover}
.hi__thumb--pending{background:rgba(59,130,246,.06);border-color:rgba(59,130,246,.15)}
.hi__thumb--pending span{font-size:1.1rem}
.hi__info{min-width:0;flex:1}
.hi__name{
  font-size:.85rem;font-weight:700;color:var(--txt);
  white-space:nowrap;overflow:hidden;text-overflow:ellipsis;line-height:1.3;
}
.hi:hover .hi__name{color:var(--blue)}
.hi__meta{font-size:.6rem;color:var(--txt3);margin-top:1px}
.hi--active .hi__meta{color:var(--blue);font-weight:500;font-size:.7rem}
.hi__right{display:flex;align-items:center;gap:8px;flex-shrink:0;padding-left:8px}
.hi__time{font-size:.7rem;color:var(--txt3);font-variant-numeric:tabular-nums}

.dot{width:9px;height:9px;border-radius:50%}
.dot--ok{background:var(--green)}
.dot--err{background:var(--red)}
.spinner{
  width:16px;height:16px;border:2px solid rgba(59,130,246,.2);
  border-top-color:var(--blue);border-radius:50%;animation:spin .7s linear infinite;
}

/* ── Footer ────────────────────────────────────────────── */
.foot{
  display:flex;align-items:center;justify-content:center;gap:6px;
  margin-top:28px;padding-top:16px;border-top:1px solid var(--border);
  font-size:.6rem;color:var(--txt4);
}
.foot__dot{width:3px;height:3px;border-radius:50%;background:var(--txt4)}

/* ── Overlay ───────────────────────────────────────────── */
.overlay{
  position:fixed;inset:0;background:var(--page);z-index:100;
  display:flex;align-items:center;justify-content:center;
}
.overlay__inner{text-align:center;padding:24px}
.overlay__icon{font-size:3.5rem;margin-bottom:16px}
.overlay__inner h2{font-size:1.2rem;margin-bottom:6px}
.overlay__inner p{color:var(--txt2);font-size:.875rem}

/* ── Lightbox ──────────────────────────────────────────── */
.lightbox{
  position:fixed;inset:0;background:rgba(0,0,0,.94);z-index:50;
  display:flex;align-items:center;justify-content:center;
  padding:16px;flex-direction:column;gap:16px;
}
.lightbox__wrap{
  display:flex;flex-direction:column;align-items:center;gap:16px;
  max-width:100%;max-height:100%;
}
.lightbox__wrap img{
  max-width:100%;max-height:calc(100vh - 100px);object-fit:contain;border-radius:8px;
}
.lightbox__bar{
  display:flex;gap:10px;
}
.lbtn{
  width:44px;height:44px;border:none;border-radius:50%;
  background:rgba(255,255,255,.12);color:#fff;
  cursor:pointer;display:flex;align-items:center;justify-content:center;
  transition:background var(--t);text-decoration:none;
}
.lbtn:hover{background:rgba(255,255,255,.22)}
.lbtn svg{width:20px;height:20px}

/* ── Toast ──────────────────────────────────────────────── */
.toast{
  position:fixed;bottom:24px;left:50%;
  transform:translateX(-50%) translateY(80px);
  background:var(--red);color:#fff;
  padding:10px 22px;border-radius:10px;
  font-size:.85rem;font-weight:500;z-index:60;
  box-shadow:0 8px 24px rgba(0,0,0,.2);
  opacity:0;transition:all .3s ease;
  max-width:calc(100vw - 32px);text-align:center;
}
.toast--visible{transform:translateX(-50%) translateY(0);opacity:1}

@keyframes shake{
  0%,100%{transform:translateX(0)}
  20%,60%{transform:translateX(-5px)}
  40%,80%{transform:translateX(5px)}
}

/* ── Promo button ─────────────────────────────────────── */
.promo-btn{
  background:none;border:1px solid var(--crystal-border);
  width:32px;height:32px;border-radius:50%;
  font-size:1rem;cursor:pointer;
  display:flex;align-items:center;justify-content:center;
  transition:all var(--t);position:relative;
}
.promo-btn:hover{
  border-color:var(--crystal);
  transform:scale(1.1);
  box-shadow:0 0 12px rgba(124,58,237,.2);
}

/* ── Promo overlay ────────────────────────────────────── */
.promo-overlay{
  position:fixed;inset:0;background:rgba(0,0,0,.6);
  backdrop-filter:blur(8px);-webkit-backdrop-filter:blur(8px);
  z-index:80;display:flex;align-items:center;justify-content:center;
  padding:16px;animation:fadeIn .2s ease;
}
@keyframes fadeIn{from{opacity:0}to{opacity:1}}

.promo-popup{
  background:var(--card);border:1px solid var(--border-md);
  border-radius:20px;padding:32px 28px;width:100%;max-width:360px;
  min-height:260px;
  text-align:center;position:relative;
  box-shadow:0 24px 80px rgba(0,0,0,.3);
  animation:popIn .3s cubic-bezier(.34,1.56,.64,1);
}
@keyframes popIn{from{transform:scale(.8);opacity:0}to{transform:scale(1);opacity:1}}

.promo-popup__close{
  position:absolute;top:12px;right:14px;
  background:none;border:none;color:var(--txt3);
  font-size:1.3rem;cursor:pointer;line-height:1;
  width:28px;height:28px;border-radius:50%;
  display:flex;align-items:center;justify-content:center;
  transition:all var(--t);
}
.promo-popup__close:hover{background:var(--input-bg);color:var(--txt)}

.promo-popup__icon{
  font-size:3rem;margin-bottom:8px;
  animation:giftBounce 2s ease infinite;
}
@keyframes giftBounce{
  0%,100%{transform:translateY(0) rotate(0)}
  15%{transform:translateY(-6px) rotate(-5deg)}
  30%{transform:translateY(0) rotate(5deg)}
  45%{transform:translateY(-3px) rotate(0)}
}

.promo-popup__title{font-size:1.1rem;font-weight:700;margin-bottom:4px}
.promo-popup__desc{font-size:.8rem;color:var(--txt2);margin-bottom:20px}

.promo-popup__field{position:relative;margin-bottom:14px}
.promo-popup__input{
  width:100%;padding:14px 16px;
  background:var(--input-bg);border:2px solid var(--input-border);
  border-radius:12px;color:var(--txt);
  font:inherit;font-size:1.1rem;font-weight:700;
  text-align:center;letter-spacing:.12em;text-transform:uppercase;
  outline:none;transition:all var(--t);
}
.promo-popup__input:focus{border-color:var(--crystal);box-shadow:0 0 0 4px rgba(124,58,237,.12)}
.promo-popup__input::placeholder{font-weight:400;letter-spacing:.04em;text-transform:none;color:var(--txt3)}

.promo-popup__submit{
  width:100%;padding:13px;
  background:linear-gradient(135deg,#7c3aed,#a855f7);
  border:none;border-radius:12px;color:#fff;
  font:inherit;font-size:.95rem;font-weight:700;cursor:pointer;
  transition:all var(--t);
  box-shadow:0 4px 16px rgba(124,58,237,.3);
}
.promo-popup__submit:hover{transform:translateY(-1px);box-shadow:0 6px 24px rgba(124,58,237,.4)}
.promo-popup__submit:active{transform:translateY(0)}
.promo-popup__submit:disabled{opacity:.5;cursor:not-allowed;transform:none}

.promo-popup__msg{
  margin-top:12px;padding:8px 12px;border-radius:8px;
  font-size:.8rem;font-weight:500;
}
.promo-popup__msg--err{background:rgba(239,68,68,.1);color:#ef4444;border:1px solid rgba(239,68,68,.2)}

/* ── Promo reward celebration ─────────────────────────── */
.promo-reward{
  position:absolute;inset:0;
  display:flex;flex-direction:column;align-items:center;justify-content:center;
  background:var(--card);border-radius:20px;padding:24px;
  animation:rewardIn .5s cubic-bezier(.34,1.56,.64,1);
  min-height:260px;
}
@keyframes rewardIn{from{transform:scale(0);opacity:0}to{transform:scale(1);opacity:1}}

.promo-reward__glow{
  position:absolute;width:200px;height:200px;
  background:radial-gradient(circle,rgba(124,58,237,.25) 0%,transparent 70%);
  border-radius:50%;animation:glowPulse 1.5s ease infinite;
}
@keyframes glowPulse{0%,100%{transform:scale(1);opacity:.6}50%{transform:scale(1.3);opacity:1}}

.promo-reward__amount{
  font-size:3rem;font-weight:900;
  background:linear-gradient(135deg,#7c3aed,#c084fc,#e879f9);
  -webkit-background-clip:text;-webkit-text-fill-color:transparent;
  background-clip:text;
  position:relative;z-index:1;white-space:nowrap;
  animation:countPop .6s cubic-bezier(.34,1.56,.64,1);
}
@keyframes countPop{from{transform:scale(0) rotate(-10deg)}to{transform:scale(1) rotate(0)}}

.promo-reward__label{
  font-size:1rem;font-weight:600;color:var(--txt2);
  position:relative;z-index:1;margin-top:4px;
}

/* ── Confetti canvas ──────────────────────────────────── */
#confettiCanvas{
  position:fixed;inset:0;z-index:90;pointer-events:none;
}

/* ── Mobile ────────────────────────────────────────────── */
@media(max-width:520px){
  .shell{padding:0;align-items:stretch}
  .card{border-radius:0;border:none;min-height:100dvh;box-shadow:none}
  .hdr{padding:16px}
  .body{padding:16px}
  .result__bar{flex-direction:column}
  .lightbox__bar{gap:8px}
}