:root {
  --bg: #07070d;
  --bg-alt: #0a0a14;
  --surface: rgba(255,255,255,0.05);
  --surface-hover: rgba(255,255,255,0.09);
  --surface-active: rgba(255,255,255,0.12);
  --card-bg: rgba(255,255,255,0.03);
  --border: rgba(255,255,255,0.07);
  --border-hover: rgba(255,255,255,0.14);
  --text: #eeeff6;
  --text-secondary: #878faa;
  --text-tertiary: #5a627a;
  --accent: #7c5cfc;
  --accent-hover: #6a48e8;
  --accent-glow: rgba(124,92,252,0.25);
  --danger: #ff4757;
  --danger-bg: rgba(255,71,87,0.12);
  --success: #2ed573;
  --success-bg: rgba(46,213,115,0.12);
  --warning: #ffa502;
  --gradient: linear-gradient(135deg,#7c5cfc,#b47cff);
  --gradient-2: linear-gradient(135deg,#7c5cfc,#e87cff);
  --shadow-sm: 0 2px 8px rgba(0,0,0,0.2);
  --shadow: 0 8px 32px rgba(0,0,0,0.35);
  --shadow-lg: 0 16px 48px rgba(0,0,0,0.45);
  --shadow-glow: 0 4px 24px rgba(124,92,252,0.15);
  --radius: 14px;
  --radius-sm: 10px;
  --radius-xs: 7px;
  --radius-full: 999px;
  --nav-height: 64px;
  --header-height: 58px;
  --transition: 0.3s cubic-bezier(0.22,1,0.36,1);
  --transition-fast: 0.15s ease;
  --safe-bottom: env(safe-area-inset-bottom,0px);
  --safe-top: env(safe-area-inset-top,0px);
}

.light {
  --bg: #f4f5f9;
  --bg-alt: #eef0f5;
  --surface: rgba(255,255,255,0.8);
  --surface-hover: rgba(255,255,255,0.95);
  --surface-active: rgba(255,255,255,1);
  --card-bg: rgba(255,255,255,0.6);
  --border: rgba(0,0,0,0.07);
  --border-hover: rgba(0,0,0,0.14);
  --text: #1a1d2e;
  --text-secondary: #6b7280;
  --text-tertiary: #9ca3af;
  --shadow-sm: 0 2px 8px rgba(0,0,0,0.05);
  --shadow: 0 8px 32px rgba(0,0,0,0.07);
  --shadow-lg: 0 16px 48px rgba(0,0,0,0.1);
  --shadow-glow: 0 4px 24px rgba(124,92,252,0.12);
}

*,*::before,*::after{margin:0;padding:0;box-sizing:border-box}
html{font-size:16px;scroll-behavior:smooth;-webkit-text-size-adjust:100%;text-size-adjust:100%}
body{
  font-family:-apple-system,BlinkMacSystemFont,'Segoe UI',Roboto,Oxygen,Ubuntu,sans-serif;
  background:var(--bg);color:var(--text);min-height:100dvh;min-height:-webkit-fill-available;overflow-x:hidden;
  transition:background var(--transition),color var(--transition);
  padding-top:calc(var(--header-height) + var(--safe-top));
  padding-bottom:calc(var(--nav-height) + var(--safe-bottom) + 12px);
}

::-webkit-scrollbar{width:4px}::-webkit-scrollbar-track{background:transparent}
::-webkit-scrollbar-thumb{background:var(--accent);border-radius:var(--radius-full)}
::selection{background:var(--accent);color:#fff}

/* Header */
header{
  position:fixed;top:0;left:0;right:0;z-index:100;height:var(--header-height);
  backdrop-filter:blur(24px) saturate(1.6);-webkit-backdrop-filter:blur(24px) saturate(1.6);
  background:rgba(7,7,13,0.7);border-bottom:1px solid var(--border);
  display:flex;align-items:center;justify-content:space-between;padding:0 18px;
  padding-top:var(--safe-top);transition:background var(--transition),border-color var(--transition);
}
.light header{background:rgba(244,245,249,0.75)}
header h1{
  font-size:clamp(0.85rem,3.8vw,1.1rem);font-weight:800;letter-spacing:-0.02em;
  background:var(--gradient);-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text;
  display:flex;align-items:center;gap:10px;line-height:1.2;
}
header h1::before{content:'📱';-webkit-text-fill-color:initial;font-size:clamp(0.95rem,4vw,1.2rem)}
.header-actions{display:flex;gap:10px;align-items:center;flex-shrink:0}
#themeToggle{
  background:var(--surface);border:1px solid var(--border);color:var(--text);
  width:36px;height:36px;border-radius:50%;cursor:pointer;font-size:1rem;
  display:flex;align-items:center;justify-content:center;
  transition:all var(--transition-fast);-webkit-tap-highlight-color:transparent;
}
#themeToggle:hover{background:var(--surface-hover);border-color:var(--border-hover);transform:rotate(20deg)}

/* Bottom Nav */
.bottom-nav{
  position:fixed;bottom:0;left:0;right:0;z-index:100;
  height:calc(var(--nav-height) + var(--safe-bottom));
  padding-bottom:var(--safe-bottom);
  backdrop-filter:blur(24px) saturate(1.6);-webkit-backdrop-filter:blur(24px) saturate(1.6);
  background:rgba(7,7,13,0.7);border-top:1px solid var(--border);
  display:flex;align-items:center;justify-content:space-around;padding:0 12px;
  transition:background var(--transition);
}
.light .bottom-nav{background:rgba(244,245,249,0.75)}
.tab-btn{
  background:none;border:none;color:var(--text-tertiary);font-size:0.75rem;
  font-weight:600;padding:6px 20px;border-radius:var(--radius-sm);cursor:pointer;
  display:flex;flex-direction:column;align-items:center;gap:3px;
  transition:all var(--transition);position:relative;
  -webkit-tap-highlight-color:transparent;user-select:none;
  min-width:80px;min-height:44px;letter-spacing:0.01em;
}
@media(min-width:400px){.tab-btn{padding:6px 28px}}
.tab-btn .tab-icon{font-size:1.25rem;line-height:1;transition:transform var(--transition-fast)}
.tab-btn.active .tab-icon{transform:scale(1.1)}
.tab-btn.active{color:var(--accent)}
.tab-btn.active::before{content:'';position:absolute;top:0;left:50%;transform:translateX(-50%);
  width:20px;height:3px;background:var(--gradient);border-radius:0 0 4px 4px;}
.tab-btn:hover{color:var(--text)}
.tab-btn:active{transform:scale(0.95)}

/* Sections */
.section{display:none;padding:16px 14px;animation:fadeIn 0.35s var(--transition)}
.section.active{display:block}
@keyframes fadeIn{from{opacity:0;transform:translateY(10px)}to{opacity:1;transform:translateY(0)}}

/* Section Header */
.section-header{text-align:center;margin-bottom:18px}
.section-header h2{font-size:clamp(1.1rem,4.5vw,1.35rem);font-weight:800;letter-spacing:-0.03em}
.section-header p{font-size:clamp(0.78rem,3vw,0.88rem);color:var(--text-secondary);margin-top:4px}

/* Cards Grid */
.cards-grid{
  display:grid;grid-template-columns:1fr 1fr;gap:10px;
  max-width:560px;margin:0 auto;
}
@media(min-width:420px){.cards-grid{gap:12px}}
@media(min-width:600px){.cards-grid{grid-template-columns:repeat(3,1fr);max-width:700px}}
@media(min-width:900px){.cards-grid{grid-template-columns:repeat(5,1fr);max-width:900px;gap:14px}}

.feature-card{
  background:var(--card-bg);border:1px solid var(--border);border-radius:var(--radius);
  padding:clamp(16px,4vw,26px) clamp(12px,3vw,20px);cursor:pointer;text-align:center;
  backdrop-filter:blur(16px);-webkit-backdrop-filter:blur(16px);
  transition:all var(--transition);position:relative;overflow:hidden;
  -webkit-tap-highlight-color:transparent;user-select:none;
  min-height:110px;display:flex;flex-direction:column;align-items:center;justify-content:center;
}
@media(min-width:420px){.feature-card{min-height:125px}}
.feature-card::before{content:'';position:absolute;inset:0;border-radius:var(--radius);
  background:var(--gradient);opacity:0;transition:opacity var(--transition);}
.feature-card::after{content:'';position:absolute;inset:-1px;border-radius:var(--radius);
  background:var(--gradient);opacity:0;z-index:-1;transition:opacity var(--transition);filter:blur(8px);}
.feature-card:hover{transform:translateY(-4px);border-color:transparent;box-shadow:var(--shadow-glow)}
.feature-card:hover::before{opacity:0.1}
.feature-card:hover::after{opacity:0.3}
.feature-card:active{transform:translateY(-2px) scale(0.97)}
.feature-card .card-icon{font-size:clamp(1.6rem,6vw,2.2rem);margin-bottom:10px;position:relative;z-index:1;
  transition:transform var(--transition-fast);}
.feature-card:hover .card-icon{transform:scale(1.1)}
.feature-card .card-title{font-weight:700;font-size:clamp(0.82rem,3.5vw,0.95rem);position:relative;z-index:1}
.feature-card .card-desc{font-size:clamp(0.65rem,2.6vw,0.75rem);color:var(--text-secondary);margin-top:5px;position:relative;z-index:1}

/* Modal */
.modal-overlay{
  position:fixed;inset:0;z-index:200;
  background:rgba(0,0,0,0.55);backdrop-filter:blur(10px);-webkit-backdrop-filter:blur(10px);
  display:none;align-items:flex-end;justify-content:center;padding:0;
}
@media(min-width:500px){.modal-overlay{align-items:center;padding:20px}}
.modal-overlay.open{display:flex}
.modal-content{
  background:var(--bg-alt);border:1px solid var(--border);
  border-radius:var(--radius) var(--radius) 0 0;
  width:100%;max-width:480px;max-height:88dvh;
  overflow-y:auto;padding:22px 20px;position:relative;
  animation:slideUp 0.4s var(--transition);
  box-shadow:var(--shadow-lg);
  padding-bottom:calc(22px + var(--safe-bottom));
}
@media(min-width:500px){.modal-content{border-radius:var(--radius);padding:26px;margin:auto}}
@keyframes slideUp{from{opacity:0;transform:translateY(50px) scale(0.97)}to{opacity:1;transform:translateY(0) scale(1)}}
@media(max-width:499px){
  @keyframes slideUp{from{opacity:0;transform:translateY(100%)}to{opacity:1;transform:translateY(0)}}
}
.modal-close{
  position:absolute;top:14px;right:14px;background:var(--surface);border:1px solid var(--border);
  color:var(--text-secondary);font-size:1.2rem;cursor:pointer;
  transition:all var(--transition-fast);line-height:1;
  width:34px;height:34px;display:flex;align-items:center;justify-content:center;
  border-radius:50%;-webkit-tap-highlight-color:transparent;
}
.modal-close:hover{color:var(--text);background:var(--surface-hover);border-color:var(--border-hover)}
.modal-title{font-size:clamp(1.05rem,4vw,1.25rem);font-weight:700;margin-bottom:18px;
  display:flex;align-items:center;gap:8px;padding-right:36px}

/* Forms */
.form-group{margin-bottom:14px}
.form-group label{display:block;font-size:clamp(0.72rem,3vw,0.82rem);font-weight:600;margin-bottom:5px;color:var(--text-secondary);text-transform:uppercase;letter-spacing:0.04em}
.form-group input,.form-group textarea,.form-group select{
  width:100%;padding:clamp(9px,3vw,12px) clamp(11px,3vw,14px);border-radius:var(--radius-xs);
  background:var(--surface);border:1px solid var(--border);color:var(--text);
  font-size:clamp(0.85rem,3.5vw,0.93rem);transition:all var(--transition-fast);outline:none;
  font-family:inherit;
}
.form-group input:focus,.form-group textarea:focus{border-color:var(--accent);box-shadow:0 0 0 3px var(--accent-glow)}
.form-group textarea{min-height:clamp(60px,15vw,90px);resize:vertical}
.form-row{display:grid;grid-template-columns:1fr 1fr;gap:10px}
@media(max-width:360px){.form-row{grid-template-columns:1fr;gap:8px}}

/* Buttons */
.btn{
  padding:clamp(9px,3vw,13px) clamp(16px,4vw,26px);border:none;border-radius:var(--radius-xs);
  font-size:clamp(0.82rem,3.5vw,0.92rem);font-weight:600;cursor:pointer;
  transition:all var(--transition);display:inline-flex;align-items:center;gap:7px;
  justify-content:center;min-height:44px;-webkit-tap-highlight-color:transparent;user-select:none;
  letter-spacing:0.01em;
}
.btn-primary{background:var(--gradient);color:#fff;box-shadow:0 2px 12px var(--accent-glow)}
.btn-primary:hover{transform:translateY(-2px);box-shadow:0 6px 24px var(--accent-glow)}
.btn-primary:active{transform:translateY(0) scale(0.98)}
.btn-secondary{background:var(--surface);color:var(--text);border:1px solid var(--border)}
.btn-secondary:hover{background:var(--surface-hover);border-color:var(--border-hover)}
.btn-secondary:active{transform:scale(0.98)}
.btn-success{background:var(--success);color:#fff;box-shadow:0 2px 12px rgba(46,213,115,0.2)}
.btn-success:hover{transform:translateY(-2px);box-shadow:0 6px 24px rgba(46,213,115,0.3)}
.btn-danger{background:var(--danger);color:#fff}
.btn-sm{min-height:36px;padding:6px 14px;font-size:clamp(0.72rem,3vw,0.82rem);gap:5px}
.btn-group{display:flex;gap:8px;flex-wrap:wrap;margin-top:14px}
.btn-block{width:100%}

/* Divider */
.section-divider{display:flex;align-items:center;gap:12px;margin:10px 0 16px}
.section-divider::before,.section-divider::after{content:'';flex:1;height:1px;background:var(--border)}
.section-divider span{font-size:0.72rem;font-weight:600;color:var(--text-tertiary);text-transform:uppercase;letter-spacing:0.06em;white-space:nowrap}

/* Chips */
.chip-group{display:flex;flex-wrap:wrap;gap:5px}
.chip{
  padding:7px 14px;border:1px solid var(--border);border-radius:var(--radius-full);
  background:var(--surface);color:var(--text-secondary);
  font-family:inherit;font-size:clamp(0.72rem,3vw,0.82rem);font-weight:500;
  cursor:pointer;transition:all var(--transition-fast);
  -webkit-tap-highlight-color:transparent;user-select:none;
}
.chip:hover{background:var(--surface-hover);color:var(--text);border-color:var(--border-hover)}
.chip.active{background:var(--gradient);color:#fff;border-color:transparent;box-shadow:0 2px 8px var(--accent-glow)}

/* Color Picker */
.color-pick{display:flex;gap:8px;align-items:center}
.color-pick input[type="color"]{
  width:36px;height:36px;border:1px solid var(--border);border-radius:var(--radius-xs);
  padding:2px;cursor:pointer;background:none;flex-shrink:0;
  transition:border-color var(--transition-fast);
}
.color-pick input[type="color"]:focus{border-color:var(--accent);box-shadow:0 0 0 3px var(--accent-glow)}
.color-pick input[type="color"]::-webkit-color-swatch-wrapper{padding:0}
.color-pick input[type="color"]::-webkit-color-swatch{border:none;border-radius:5px}
.color-input{font-family:'SF Mono','Fira Code','JetBrains Mono',monospace;font-size:0.8rem;text-transform:uppercase;min-width:0}

/* QR Result */
.qr-result{display:none;margin-top:20px;text-align:center;animation:fadeIn 0.4s ease}
.qr-result.show{display:block}
.qr-result .qr-canvas-wrapper{
  display:inline-block;padding:16px;background:#fff;
  border-radius:var(--radius-sm);margin-bottom:14px;
  box-shadow:0 6px 24px rgba(0,0,0,0.12);
  max-width:100%;position:relative;
}
.qr-result .qr-canvas-wrapper::after{content:'';position:absolute;inset:-2px;border-radius:calc(var(--radius-sm) + 2px);
  background:var(--gradient);opacity:0.15;z-index:-1;filter:blur(6px);}
.qr-result .qr-canvas-wrapper canvas{display:block;max-width:100%;height:auto}
.qr-result .qr-label{font-size:clamp(0.72rem,3vw,0.82rem);color:var(--text-secondary);margin-bottom:10px;word-break:break-all}

/* Generation history */
.gen-history{border-top:1px solid var(--border);padding-top:18px;margin-top:32px!important}
.gen-history .history-empty{font-size:clamp(0.72rem,3vw,0.82rem)}

/* Scanner */
.scanner-options{
  display:grid;grid-template-columns:1fr 1fr;gap:10px;margin-bottom:16px;
  max-width:480px;margin-left:auto;margin-right:auto;
}
.scanner-opt-btn{
  padding:clamp(16px,4vw,26px) 14px;border:1px solid var(--border);border-radius:var(--radius);
  background:var(--card-bg);color:var(--text);cursor:pointer;text-align:center;
  transition:all var(--transition);backdrop-filter:blur(12px);-webkit-backdrop-filter:blur(12px);
  -webkit-tap-highlight-color:transparent;user-select:none;
  display:flex;flex-direction:column;align-items:center;gap:4px;
}
.scanner-opt-btn:hover{transform:translateY(-3px);border-color:var(--accent);box-shadow:var(--shadow-glow)}
.scanner-opt-btn:active{transform:translateY(-1px) scale(0.97)}
.scanner-opt-btn .opt-icon{font-size:clamp(1.6rem,6vw,2.2rem);margin-bottom:4px}
.scanner-opt-btn .opt-title{font-weight:700;font-size:clamp(0.82rem,3.5vw,0.92rem)}
.scanner-opt-btn .opt-desc{font-size:clamp(0.62rem,2.6vw,0.72rem);color:var(--text-secondary);margin-top:2px}
.scanner-view{display:none;max-width:480px;margin:0 auto 20px;animation:fadeIn 0.3s ease}
.scanner-view.active{display:block}
.scanner-view video{border-radius:var(--radius);width:100%;background:#000;display:block}
.scanner-controls{display:flex;gap:8px;margin-top:12px;justify-content:center}
#scanResult{
  max-width:480px;margin:16px auto;
  background:var(--surface);border:1px solid var(--border);
  border-radius:var(--radius);padding:16px;display:none;animation:fadeIn 0.3s ease;
}
#scanResult.show{display:block}
#scanResult .result-header{display:flex;justify-content:space-between;align-items:center;margin-bottom:10px;gap:8px;flex-wrap:wrap}
#scanResult .result-type{font-size:clamp(0.62rem,2.6vw,0.72rem);background:var(--accent);color:#fff;padding:3px 12px;border-radius:var(--radius-full);font-weight:600;white-space:nowrap}
#scanResult .result-text{font-size:clamp(0.82rem,3.5vw,0.93rem);word-break:break-all;background:var(--card-bg);padding:12px;border-radius:var(--radius-xs);margin-bottom:12px;line-height:1.5}
#scanResult .result-actions{display:flex;gap:8px;flex-wrap:wrap}

/* History */
.history-section{margin-top:22px;max-width:480px;margin-left:auto;margin-right:auto}
.history-section h3{font-size:clamp(0.88rem,3.8vw,1rem);font-weight:700;margin-bottom:12px;display:flex;align-items:center;gap:8px}
.history-section h3 button{background:none;border:none;color:var(--danger);cursor:pointer;font-size:clamp(0.68rem,3vw,0.76rem);margin-left:auto;font-weight:600;
  -webkit-tap-highlight-color:transparent;padding:4px 10px;border-radius:var(--radius-xs);min-height:34px;transition:background var(--transition-fast);}
.history-section h3 button:hover{background:var(--danger-bg)}
.history-list{display:flex;flex-direction:column;gap:6px}
.history-item{
  background:var(--surface);border:1px solid var(--border);
  border-radius:var(--radius-xs);padding:10px 12px;
  display:flex;gap:10px;align-items:flex-start;cursor:pointer;
  transition:all var(--transition-fast);animation:fadeIn 0.3s ease;
  -webkit-tap-highlight-color:transparent;min-height:42px;
}
.history-item:hover{background:var(--surface-hover);border-color:var(--border-hover)}
.history-item:active{transform:scale(0.99)}
.history-item .h-type{font-size:clamp(0.58rem,2.4vw,0.66rem);background:var(--accent);color:#fff;padding:2px 10px;border-radius:var(--radius-full);white-space:nowrap;margin-top:2px;font-weight:600}
.history-item .h-text{font-size:clamp(0.75rem,3vw,0.84rem);word-break:break-all;flex:1;min-width:0;line-height:1.4}
.history-item .h-time{font-size:clamp(0.58rem,2.4vw,0.66rem);color:var(--text-tertiary);white-space:nowrap;margin-top:3px}
.history-empty{font-size:clamp(0.75rem,3vw,0.84rem);color:var(--text-tertiary);text-align:center;padding:20px}

/* Camera placeholder */
#cameraPlaceholder{
  background:var(--surface);border:1px solid var(--border);
  border-radius:var(--radius);padding:clamp(28px,8vw,50px) 20px;text-align:center;
  color:var(--text-secondary);font-size:clamp(0.78rem,3.2vw,0.9rem);
}
#cameraPlaceholder .big-icon{font-size:clamp(2.2rem,10vw,3.5rem);margin-bottom:12px;display:block}

/* Toast */
.toast{
  position:fixed;bottom:calc(var(--nav-height) + var(--safe-bottom) + 24px);
  left:50%;transform:translateX(-50%) translateY(100px);
  background:var(--surface);border:1px solid var(--border);
  backdrop-filter:blur(24px);-webkit-backdrop-filter:blur(24px);
  padding:12px 24px;border-radius:var(--radius-full);
  color:var(--text);font-size:clamp(0.78rem,3.2vw,0.88rem);z-index:300;
  opacity:0;transition:all 0.5s var(--transition);pointer-events:none;
  box-shadow:var(--shadow-lg);white-space:nowrap;max-width:92vw;font-weight:500;
}
.toast.show{opacity:1;transform:translateX(-50%) translateY(0)}
.toast.success{border-color:var(--success);box-shadow:var(--shadow-lg),0 0 20px rgba(46,213,115,0.08)}
.toast.error{border-color:var(--danger);box-shadow:var(--shadow-lg),0 0 20px rgba(255,71,87,0.08)}

/* Scrollable result */
.scrollable{max-height:clamp(120px,40vw,200px);overflow-y:auto}

/* Loading spinner */
.spinner{
  display:inline-block;width:18px;height:18px;border:2px solid rgba(255,255,255,0.25);
  border-top-color:#fff;border-radius:50%;animation:spin 0.7s linear infinite;
}
@keyframes spin{to{transform:rotate(360deg)}}

/* Select styling */
.form-group select{cursor:pointer;appearance:none;
  background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='10' height='6'%3E%3Cpath d='M0 0l5 6 5-6z' fill='%23878faa'/%3E%3C/svg%3E");
  background-repeat:no-repeat;background-position:right 12px center;padding-right:32px;
}

/* Scan mode badge */
.scan-mode-badge{text-align:center;font-size:clamp(0.72rem,3vw,0.82rem);color:var(--text-secondary);margin-bottom:10px;font-weight:500}

/* Landscape phone support */
@media(max-height:500px) and (orientation:landscape){
  :root{--header-height:42px;--nav-height:50px}
  .feature-card{min-height:72px;padding:8px 6px}
  .feature-card .card-icon{font-size:1.1rem;margin-bottom:3px}
  .feature-card .card-title{font-size:0.65rem}
  .feature-card .card-desc{font-size:0.55rem}
  .cards-grid{gap:5px}
  .section{padding:8px}
  .modal-content{max-height:82dvh;padding:14px 12px}
  .scanner-opt-btn{padding:8px 10px}
  .scanner-opt-btn .opt-icon{font-size:1.1rem}
  .section-header{margin-bottom:10px}
}

/* Large desktop */
@media(min-width:1200px){
  .section{padding:24px 16px}
  .cards-grid{gap:18px}
  .feature-card{padding:30px 22px}
  .feature-card .card-icon{font-size:2.4rem;margin-bottom:12px}
}

/* ============================================ */
/*               POLISHED UI TWEAKS              */
/* ============================================ */

body {
  background: radial-gradient(ellipse 800px 500px at 10% 30%, rgba(124,92,252,0.06), transparent),
              radial-gradient(ellipse 600px 600px at 90% 70%, rgba(180,124,255,0.04), transparent),
              var(--bg);
}
.light body {
  background: radial-gradient(ellipse 800px 500px at 10% 30%, rgba(124,92,252,0.03), transparent),
              radial-gradient(ellipse 600px 600px at 90% 70%, rgba(180,124,255,0.02), transparent),
              var(--bg);
}

.feature-card {
  border-radius: 16px;
  box-shadow: 0 1px 3px rgba(0,0,0,0.1);
  min-height: 120px;
}
@media(min-width:420px){.feature-card{min-height:135px}}
.feature-card .card-icon {
  width: 48px; height: 48px;
  display: flex; align-items: center; justify-content: center;
  font-size: 1.5rem;
  background: var(--surface); border-radius: 14px;
  margin-bottom: 12px;
  transition: all var(--transition-fast);
}
.feature-card:hover .card-icon {
  background: var(--accent-glow);
  transform: scale(1.05);
}

.scanner-opt-btn {
  border-radius: 16px;
  min-height: 90px;
}
.scanner-opt-btn .opt-icon {
  width: 44px; height: 44px;
  display: flex; align-items: center; justify-content: center;
  font-size: 1.4rem;
  background: var(--surface); border-radius: 12px;
  margin-bottom: 8px;
  transition: all var(--transition-fast);
}
.scanner-opt-btn:hover .opt-icon {
  background: var(--accent-glow);
}

.modal-content {
  border-radius: 20px 20px 0 0;
}
@media(min-width:500px){.modal-content{border-radius: 20px}}
.modal-title {
  font-size: clamp(1.1rem,4.5vw,1.3rem);
  padding-bottom: 12px;
  border-bottom: 1px solid var(--border);
  margin-bottom: 16px;
}
.modal-close {
  width: 32px; height: 32px;
  font-size: 1.3rem;
  background: var(--surface);
}
.modal-close:hover {
  background: var(--danger-bg);
  color: var(--danger);
  border-color: transparent;
}

.section-divider {
  margin: 14px 0;
}
.section-divider span {
  background: var(--bg-alt);
  padding: 0 10px;
  font-size: 0.7rem;
}

.chip {
  padding: 8px 16px;
  font-size: clamp(0.72rem,2.8vw,0.8rem);
  border-radius: 10px;
  border-width: 1.5px;
}

.chip.active {
  box-shadow: 0 4px 12px var(--accent-glow);
}

#cameraPlaceholder {
  border-radius: 16px;
  border: 1.5px dashed var(--border);
  background: var(--card-bg);
}

#scanResult {
  border-radius: 16px;
  padding: 18px;
  border-left: 3px solid var(--accent);
}

.history-item {
  border-radius: 12px;
  padding: 12px 14px;
  border-left: 3px solid transparent;
  transition: all var(--transition-fast);
}
.history-item:hover {
  border-left-color: var(--accent);
  transform: translateX(3px);
}

.qr-result .qr-canvas-wrapper {
  padding: 18px;
  border-radius: 16px;
  box-shadow: 0 8px 32px rgba(0,0,0,0.08), 0 0 0 1px rgba(124,92,252,0.06);
}

.qr-result .qr-canvas-wrapper::after {
  inset: -3px;
  border-radius: 19px;
  opacity: 0.2;
  filter: blur(10px);
}

.btn {
  border-radius: 10px;
  letter-spacing: 0.02em;
}
.btn-primary {
  border-radius: 12px;
  min-height: 48px;
  font-size: clamp(0.85rem,3.5vw,0.95rem);
}
.btn-sm {
  border-radius: 8px;
  min-height: 34px;
}
.btn-success {
  border-radius: 10px;
}

.form-group input, .form-group textarea {
  border-radius: 10px;
  padding: clamp(10px,3vw,13px) clamp(12px,3vw,15px);
}

.form-group label {
  font-size: clamp(0.68rem,2.8vw,0.75rem);
  letter-spacing: 0.06em;
}

.color-pick input[type="color"] {
  width: 40px; height: 40px;
  border-radius: 10px;
}
.color-pick input[type="color"]::-webkit-color-swatch { border-radius: 7px; }
.color-input {
  font-size: 0.78rem;
  border-radius: 8px !important;
}

.bottom-nav {
  border-top: none;
  box-shadow: 0 -4px 24px rgba(0,0,0,0.06);
}
.light .bottom-nav {
  box-shadow: 0 -4px 24px rgba(0,0,0,0.03);
}
.tab-btn {
  min-height: 48px;
  border-radius: 12px;
  gap: 4px;
}
.tab-btn.active {
  background: var(--surface-active);
}
.tab-btn.active::before { display: none; }
.tab-btn.active .tab-icon {
  color: var(--accent);
}

header {
  border-bottom: none;
  box-shadow: 0 2px 24px rgba(0,0,0,0.04);
}
.light header { box-shadow: 0 2px 24px rgba(0,0,0,0.02); }

.section-header h2 {
  background: var(--gradient);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}
.section-header p {
  margin-top: 6px;
}