:root{--bg:#0b0f14;--text:#eaf1ff;--muted:#9fb3c8;--primary:#7cc3ff;--primary-2:#6f8dff;--glass-bg:rgba(255,255,255,.08);--glass-stroke:rgba(255,255,255,.28);--glass-shadow:rgba(0,0,0,.4);--card-radius:20px;--gap:16px}
*{box-sizing:border-box;max-width:100%}
html,body{height:100%}
body{margin:0;font-family:Inter,ui-sans-serif,system-ui,-apple-system,Segoe UI,Roboto,Ubuntu,Cantarell,Noto Sans,sans-serif;background:linear-gradient(180deg,#0a0d12,#0e1320);color:var(--text);overflow-x:hidden}

.background{position:fixed;inset:0;z-index:-2;overflow:hidden}
.blob{position:absolute;filter:blur(60px);opacity:.6;mix-blend-mode:screen;animation:blobFloat 20s ease-in-out infinite}
.blob-1{width:44vw;height:44vw;background:radial-gradient(closest-side at 30% 30%,#7cc3ff,transparent 70%);left:-10vw;top:-6vw;animation-delay:0s}
.blob-2{width:50vw;height:50vw;background:radial-gradient(closest-side at 60% 40%,#6f8dff,transparent 70%);right:-12vw;top:-8vw;animation-delay:7s}
.blob-3{width:36vw;height:36vw;background:radial-gradient(closest-side at 50% 50%,#6ffff1,transparent 70%);left:20vw;bottom:-10vw;animation-delay:14s}
#noise{position:absolute;inset:0;opacity:.04;mix-blend-mode:overlay}

@keyframes blobFloat{
  0%, 100%{transform:translate(0, 0) scale(1);}
  25%{transform:translate(20px, -30px) scale(1.1);}
  50%{transform:translate(-15px, -20px) scale(0.9);}
  75%{transform:translate(10px, 15px) scale(1.05);}
}

/* Mobile optimizations */
@media (max-width: 768px){
  .blob{filter:blur(40px);opacity:.4}
  .blob-1{width:60vw;height:60vw;left:-15vw;top:-10vw}
  .blob-2{width:70vw;height:70vw;right:-20vw;top:-15vw}
  .blob-3{width:50vw;height:50vw;left:10vw;bottom:-15vw}
}

.site-header{display:flex;align-items:center;justify-content:space-between;padding:20px 24px;max-width:1200px;margin:0 auto}
.brand{display:flex;align-items:center;gap:10px;font-weight:700;letter-spacing:.2px}
.brand span{font-size:18px}
.github{color:var(--muted);text-decoration:none;border:1px solid rgba(255,255,255,.14);padding:8px 12px;border-radius:10px;backdrop-filter:blur(8px);transition:all 0.3s ease}
.github:hover{color:var(--text);border-color:rgba(255,255,255,.28);transform:translateY(-1px)}
.header-actions{display:flex;gap:10px;align-items:center}
#lang-switcher{background:rgba(16,22,32,.6);color:var(--text);border:1px solid rgba(255,255,255,.12);border-radius:10px;padding:8px 10px;transition:all 0.3s ease;appearance:none;-webkit-appearance:none;-moz-appearance:none;background-image:url("data:image/svg+xml;charset=UTF-8,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%239fb3c8' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3e%3cpolyline points='6,9 12,15 18,9'%3e%3c/polyline%3e%3c/svg%3e");background-repeat:no-repeat;background-position:right 8px center;background-size:14px;padding-right:30px}
#lang-switcher:hover{background:rgba(16,22,32,.8);transform:translateY(-1px)}

.container{max-width:1200px;margin:0 auto;padding:10px 16px 40px;width:100%;overflow-x:hidden}

/* Mobile header */
@media (max-width: 768px){
  .site-header{padding:16px 20px;flex-wrap:wrap;gap:12px}
  .brand span{font-size:16px}
  .github{padding:6px 10px;font-size:14px}
  .header-actions{gap:8px}
  #lang-switcher{padding:6px 8px;font-size:14px}
}

@media (max-width: 480px){
  .site-header{padding:12px 16px}
  .brand span{font-size:15px}
  .github{display:none}
}
.glass{position:relative;background:linear-gradient(180deg,rgba(255,255,255,.12),rgba(255,255,255,.06));border:1px solid var(--glass-stroke);box-shadow:0 10px 30px var(--glass-shadow),inset 0 1px 0 rgba(255,255,255,.2);backdrop-filter:blur(18px);-webkit-backdrop-filter:blur(18px);border-radius:var(--card-radius);transition:all 0.3s ease;width:100%;overflow-x:hidden}
.glass:hover{transform:translateY(-2px);box-shadow:0 15px 40px var(--glass-shadow),inset 0 1px 0 rgba(255,255,255,.2)}
.card{padding:26px}

/* Landing spacing and rhythm */
.landing .container{padding:20px 16px 60px}
.landing .card{padding:32px}
.landing section + section{margin-top:26px}
@media (min-width: 769px){
  .landing section + section{margin-top:36px}
  .landing #hero{margin-top:10px}
}

h1{margin:0 0 8px;font-size:28px;background:linear-gradient(135deg, var(--text), var(--primary));-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text;animation:titleGlow 3s ease-in-out infinite alternate}
.subtitle{margin:0 0 20px;color:var(--muted)}

/* Reveal animations (Apple-like subtle) */
.reveal{opacity:0;transform:translateY(18px) scale(.98);transition:opacity .7s ease, transform .7s ease}
.reveal.in-view{opacity:1;transform:translateY(0) scale(1)}
.reveal .field{transform:translateY(10px);opacity:.0;transition:opacity .6s ease .05s, transform .6s ease .05s}
.reveal.in-view .field{transform:none;opacity:1}

/* Slight hover lift for cards on landing */
.landing .glass:hover{transform:translateY(-4px);box-shadow:0 18px 46px var(--glass-shadow),inset 0 1px 0 rgba(255,255,255,.22)}

@keyframes titleGlow{
  0%{filter:drop-shadow(0 0 5px rgba(124, 195, 255, 0.3))}
  100%{filter:drop-shadow(0 0 15px rgba(124, 195, 255, 0.6))}
}

/* Mobile card adjustments */
@media (max-width: 768px){
  .card{padding:20px}
  h1{font-size:24px}
  .subtitle{font-size:14px}
}

@media (max-width: 480px){
  .card{padding:16px}
  h1{font-size:22px}
  .subtitle{font-size:13px}
}

.tabs{display:flex;gap:8px;margin:6px 0 16px;flex-wrap:wrap}
.tab{appearance:none;border:none;background:rgba(255,255,255,.06);color:var(--muted);padding:10px 14px;border-radius:12px;cursor:pointer;border:1px solid rgba(255,255,255,.1);transition:all 0.3s ease;flex:1;min-width:120px;text-align:center}
.tab:hover{background:rgba(255,255,255,.1);transform:translateY(-1px)}
.tab.active{color:var(--text);background:linear-gradient(180deg,rgba(255,255,255,.16),rgba(255,255,255,.06));box-shadow:inset 0 1px 0 rgba(255,255,255,.2);transform:translateY(-1px)}
.tab:focus-visible{outline:2px solid var(--primary)}

.panels{margin-top:6px}
.panel.hidden{display:none}
.form{display:flex;flex-direction:column;gap:16px}
.grid{display:grid;grid-template-columns:repeat(6,1fr);gap:var(--gap)}

/* Responsive grid */
@media (max-width: 1200px){.grid{grid-template-columns:repeat(4,1fr)}}
@media (max-width: 900px){.grid{grid-template-columns:repeat(2,1fr)}}
@media (max-width: 768px){.grid{grid-template-columns:1fr;gap:12px}}
@media (max-width: 560px){.grid{grid-template-columns:1fr;gap:12px}}

/* Mobile tabs */
@media (max-width: 768px){
  .tabs{gap:6px;margin:4px 0 12px}
  .tab{padding:8px 12px;font-size:14px;min-width:100px}
}

@media (max-width: 480px){
  .tabs{flex-direction:column}
  .tab{min-width:auto;padding:10px 12px}
}

.field{display:flex;flex-direction:column;gap:8px}
.field span{color:var(--muted);font-size:13px}
.field input,.field select{width:100%;padding:12px 12px;border-radius:12px;background:rgba(16,22,32,.6);border:1px solid rgba(255,255,255,.12);color:var(--text);transition:all 0.3s ease;font-size:14px}
.field select{background:rgba(16,22,32,.6);appearance:none;-webkit-appearance:none;-moz-appearance:none;background-image:url("data:image/svg+xml;charset=UTF-8,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%239fb3c8' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3e%3cpolyline points='6,9 12,15 18,9'%3e%3c/polyline%3e%3c/svg%3e");background-repeat:no-repeat;background-position:right 12px center;background-size:16px;padding-right:40px}
.field input:focus,.field select:focus{outline:none;border-color:var(--primary);box-shadow:0 0 0 3px rgba(124, 195, 255, 0.1);transform:translateY(-1px)}
.field input[type="color"]{padding:6px 8px;height:42px;cursor:pointer}
.field input[type="checkbox"]{width:20px;height:20px;cursor:pointer;accent-color:var(--primary)}
.field textarea{width:100%;padding:12px;border-radius:12px;background:rgba(16,22,32,.6);border:1px solid rgba(255,255,255,.12);color:var(--text);resize:vertical;transition:all 0.3s ease;font-size:14px;min-height:80px}
.field textarea:focus{outline:none;border-color:var(--primary);box-shadow:0 0 0 3px rgba(124, 195, 255, 0.1);transform:translateY(-1px)}

.template-fields{grid-column:span 6;display:grid;grid-template-columns:repeat(6,1fr);gap:var(--gap)}
@media (max-width: 1200px){.template-fields{grid-template-columns:repeat(4,1fr)}}
@media (max-width: 900px){.template-fields{grid-template-columns:repeat(2,1fr)}}
@media (max-width: 768px){.template-fields{grid-template-columns:1fr}}
@media (max-width: 560px){.template-fields{grid-template-columns:1fr}}

.presets{grid-column:span 6}
.icon-presets,.color-presets{display:flex;gap:10px;flex-wrap:wrap}
.icon-presets button{width:44px;height:44px;border-radius:10px;border:1px solid rgba(255,255,255,.18);background:rgba(255,255,255,.06);display:grid;place-items:center;cursor:pointer;transition:all 0.3s ease}
.icon-presets button:hover{transform:translateY(-2px) scale(1.05);background:rgba(255,255,255,.1)}
.icon-presets img{width:24px;height:24px}
.color-presets button{height:36px;border-radius:999px;border:1px solid rgba(255,255,255,.18);padding:0 12px;cursor:pointer;background:rgba(255,255,255,.06);color:var(--text);transition:all 0.3s ease;font-size:13px}
.color-presets button:hover{transform:translateY(-1px);background:rgba(255,255,255,.1)}

/* Selected states */
.icon-presets button.selected,.color-presets button.selected{border-color:var(--primary); box-shadow:0 0 0 2px color-mix(in oklab, var(--primary) 40%, transparent);transform:translateY(-1px)}

/* Mobile field adjustments */
@media (max-width: 768px){
  .field input,.field select,.field textarea{padding:10px;font-size:16px}
  .icon-presets button{width:40px;height:40px}
  .icon-presets img{width:20px;height:20px}
  .color-presets button{height:32px;padding:0 10px;font-size:12px}
  
  /* ALL forms mobile layout - single column, full width */
  .grid{grid-template-columns:1fr !important;gap:12px}
  .template-fields{grid-template-columns:1fr !important}
  
  /* QR Parameters mobile - all fields vertical */
  .qr-parameters{width:100%}
  .field-row{grid-template-columns:1fr !important;gap:12px}
  
  /* Template fields mobile - same as desktop */
  .template-fields{width:100%}
  
  /* Keep presets horizontal with wrapping */
  .icon-presets,.color-presets{flex-wrap:wrap;justify-content:flex-start}
  
  /* Icon color field mobile layout */
  .field > div{flex-direction:column;align-items:flex-start;gap:8px}
  .field label{width:100%}
  
  
  /* Center actions on mobile */
  .actions{justify-content:center;flex-direction:column;gap:8px}
  .actions .split{width:100%;justify-content:center}
  .actions .split .btn{flex:1;max-width:120px}
  
  /* Center upload button on mobile */
  .icon-upload{justify-content:center}
}

@media (max-width: 480px){
  /* Even more compact on small screens */
  .grid{gap:10px}
  .field input,.field select,.field textarea{padding:12px;font-size:16px}
  
  /* Center actions on very small screens */
  .actions{flex-direction:column;gap:8px;align-items:center}
  .actions .btn{width:100%;max-width:200px}
  .actions .split{width:100%;max-width:200px}
  
  /* Center upload button on very small screens */
  .icon-upload{justify-content:center}
  .upload-btn{width:100%;max-width:200px;justify-content:center}
}

.actions{display:flex;gap:10px;flex-wrap:wrap;justify-content:center;align-items:center}
.btn{appearance:none;border:none;padding:10px 14px;border-radius:12px;background:rgba(255,255,255,.08);color:var(--text);cursor:pointer;border:1px solid rgba(255,255,255,.14);transition:all 0.3s ease;font-size:14px;font-weight:500}
.btn:hover{border-color:rgba(255,255,255,.24);transform:translateY(-1px);box-shadow:0 4px 12px rgba(0,0,0,0.2)}
.btn.primary{background:linear-gradient(180deg,var(--primary),var(--primary-2));color:#061018;border:none;position:relative;overflow:hidden}
.btn.primary::before{content:'';position:absolute;top:0;left:-100%;width:100%;height:100%;background:linear-gradient(90deg,transparent,rgba(255,255,255,0.2),transparent);transition:left 0.5s}
.btn.primary:hover::before{left:100%}
.btn.primary:hover{transform:translateY(-2px);box-shadow:0 6px 20px rgba(124, 195, 255, 0.3)}
.btn:focus-visible{outline:2px solid var(--primary)}
.split{display:flex;border-radius:12px;overflow:hidden}
.split .btn{border-radius:0}

.preview{margin-top:14px;display:flex;justify-content:center}
.canvas-wrap{display:grid;place-items:center;min-height:340px;min-width:340px;max-width:90vw;background:linear-gradient(180deg,rgba(255,255,255,.12),rgba(255,255,255,.02));border:1px solid var(--glass-stroke);backdrop-filter:blur(8px);-webkit-backdrop-filter:blur(8px);border-radius:16px;padding:18px;transition:all 0.3s ease;position:relative;overflow:hidden}
.canvas-wrap::before{content:'';position:absolute;top:0;left:0;right:0;bottom:0;background:linear-gradient(45deg,transparent 30%,rgba(124, 195, 255, 0.05) 50%,transparent 70%);transform:translateX(-100%);transition:transform 0.6s}
.canvas-wrap:hover::before{transform:translateX(100%)}
.canvas-wrap:hover{transform:translateY(-2px);box-shadow:0 10px 30px rgba(0,0,0,0.3)}
.canvas-wrap canvas,.canvas-wrap svg{max-width:100%;height:auto;transition:transform 0.3s ease}
.canvas-wrap:hover canvas,.canvas-wrap:hover svg{transform:scale(1.02)}
.canvas-wrap video{max-width:100%;width:100%;border-radius:12px}
.hint{color:var(--muted);text-align:center;font-size:14px}

/* Mobile preview adjustments */
@media (max-width: 768px){
  .canvas-wrap{min-height:280px;min-width:280px;padding:14px}
  .actions{gap:8px}
  .btn{padding:8px 12px;font-size:13px}
}

@media (max-width: 480px){
  .canvas-wrap{min-height:240px;min-width:240px;padding:12px}
  .actions{flex-direction:column}
  .btn{width:100%;padding:12px}
}

.site-footer{margin:26px auto 0;max-width:1200px;padding:16px 24px;color:var(--muted);text-align:center;font-size:14px}

/* Mobile footer */
@media (max-width: 768px){
  .site-footer{padding:12px 20px;font-size:13px}
}

@media (max-width: 480px){
  .site-footer{padding:10px 16px;font-size:12px}
}

/* Utility */
.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}

/* Touch optimizations */
@media (hover: none) and (pointer: coarse){
  .btn:hover,.tab:hover,.icon-presets button:hover,.color-presets button:hover{transform:none}
  .glass:hover{transform:none}
  .canvas-wrap:hover{transform:none}
  .canvas-wrap:hover canvas,.canvas-wrap:hover svg{transform:none}
}

/* Smooth scrolling */
html{scroll-behavior:smooth}

/* Loading animation */
@keyframes pulse{
  0%, 100%{opacity:1}
  50%{opacity:0.5}
}

.loading{animation:pulse 1.5s ease-in-out infinite}

/* Hello overlay */
.hello-overlay{position:fixed;inset:0;display:grid;place-items:center;background:radial-gradient(100% 100% at 50% 30%, rgba(15,20,30,.8), rgba(10,12,18,.9));backdrop-filter:blur(8px);-webkit-backdrop-filter:blur(8px);z-index:10;animation:fadeIn 0.5s ease-out}
.hello-overlay.hidden{display:none;animation:fadeOut 0.3s ease-out}
.hello-card{padding:28px;border-radius:20px;max-width:520px;width:min(90vw,520px);animation:slideUp 0.5s ease-out}
.hello-anim{height:140px;display:grid;place-items:center;position:relative;overflow:hidden}
.hello{position:absolute;font-size:48px;font-weight:700;opacity:0;animation:helloCycle 6s infinite}
.hello.hi-en{color:#7cc3ff;animation-delay:0s}
.hello.hi-ru{color:#6f8dff;animation-delay:2s}
.hello.hi-kk{color:#6ffff1;animation-delay:4s}
@keyframes helloCycle{0%{opacity:0;transform:translateY(20px)}8%{opacity:1;transform:translateY(0)}25%{opacity:1}33%{opacity:0}100%{opacity:0}}
.hello-choice{display:flex;flex-direction:column;gap:12px;text-align:center}
.hello-actions{display:flex;gap:10px;justify-content:center}

@keyframes fadeIn{
  from{opacity:0}
  to{opacity:1}
}

@keyframes fadeOut{
  from{opacity:1}
  to{opacity:0}
}

@keyframes slideUp{
  from{opacity:0;transform:translateY(30px)}
  to{opacity:1;transform:translateY(0)}
}

/* Mobile hello overlay */
@media (max-width: 768px){
  .hello-card{padding:24px;max-width:90vw}
  .hello{font-size:40px}
  .hello-anim{height:120px}
}

@media (max-width: 480px){
  .hello-card{padding:20px}
  .hello{font-size:36px}
  .hello-anim{height:100px}
  .hello-actions{flex-direction:column}
}

/* Icon upload styles */
.icon-upload{margin-top:12px;display:flex;justify-content:center;align-items:center}
.upload-btn{display:flex;align-items:center;gap:8px;padding:10px 16px;background:rgba(255,255,255,.08);border:1px solid rgba(255,255,255,.18);border-radius:12px;cursor:pointer;color:var(--muted);transition:all 0.3s ease;backdrop-filter:blur(8px);position:relative;overflow:hidden}

/* QR Parameters - Full Width Column */
.qr-parameters{display:flex;flex-direction:column;gap:16px;width:100%}
.qr-parameters .field{width:100%}

/* Field rows for side-by-side fields */
.field-row{display:grid;grid-template-columns:1fr 1fr;gap:16px;width:100%}

/* Template fields - same style as other fields */
.template-fields{width:100%}
.template-fields .field{width:100%}
.template-fields input,.template-fields textarea{width:100%}

/* Presets section */
.presets-section{display:flex;flex-direction:column;gap:16px;width:100%}

.upload-btn::before{content:'';position:absolute;top:0;left:-100%;width:100%;height:100%;background:linear-gradient(90deg,transparent,rgba(124, 195, 255, 0.1),transparent);transition:left 0.5s}
.upload-btn:hover::before{left:100%}
.upload-btn:hover{color:var(--text);background:rgba(255,255,255,.12);border-color:rgba(255,255,255,.28);transform:translateY(-1px)}
.upload-btn svg{flex-shrink:0;transition:transform 0.3s ease}
.upload-btn:hover svg{transform:scale(1.1)}
.upload-btn span{font-size:13px;font-weight:500}

/* Mobile upload button */
@media (max-width: 768px){
  .upload-btn{padding:8px 14px;font-size:12px}
  .upload-btn span{font-size:12px}
}

@media (max-width: 480px){
  .upload-btn{width:100%;justify-content:center;padding:12px}
}

.scanner-section .media{display:flex;justify-content:center;margin:16px 0}
.scanner-shot{max-width:min(520px,90vw);width:100%;border-radius:18px;border:1px solid rgba(255,255,255,.18);box-shadow:0 12px 36px rgba(0,0,0,.35);background:rgba(255,255,255,.04)}
@media (max-width: 480px){
  .scanner-shot{border-radius:16px}
}