:root {
    --bg: #f8f8f9;
    --surface: #f8f8f9;
    --card: #ffffff;
    --accent: #00D4FF;
    --accent: #004c97;    
    --accent2: #7B2FFF;
    --accent2: #3ea3db;
    --accent3: #00FF9F;
    --accent3: #3ea3db;    
    --danger: #FF3D6B;
    --text: #000000;
    --text-dim: #5B6B8A;
    --border: #d8dbdd;
    --glow: 0 0 20px rgba(0,212,255,0.3);
}

* { margin:0; padding:0; box-sizing:border-box; -webkit-tap-highlight-color:transparent; }

body {
    background: var(--bg);
    color: var(--text);
    /* font-family: 'Exo 2', sans-serif; */
    font-family: Arial, Helvetica, sans-serif;
    min-height: 100vh;
    overflow-x: hidden;
    position: relative;
}

body::before {
    content:'';
    position:fixed; inset:0;
    /* background-image:
    linear-gradient(rgba(0,212,255,0.03) 1px,transparent 1px),
    linear-gradient(90deg,rgba(0,212,255,0.03) 1px,transparent 1px); */
    background-size:40px 40px;
    animation:gridScroll 20s linear infinite;
    pointer-events:none; z-index:0;
}
body::after {
    content:'';
    position:fixed; top:-50%; left:-50%; width:200%; height:200%;
    /* background:
    radial-gradient(ellipse at 30% 20%,rgba(123,47,255,0.08) 0%,transparent 50%),
    radial-gradient(ellipse at 70% 80%,rgba(0,212,255,0.06) 0%,transparent 50%); */
    pointer-events:none; z-index:0;
}
@keyframes gridScroll{ 0%{transform:translateY(0)} 100%{transform:translateY(40px)} }

#app {
    position:relative; z-index:1;
    max-width:420px; margin:0 auto;
    min-height:100vh;
    display:flex; flex-direction:column;
}

.status-bar {
    display:flex; justify-content:space-between; align-items:center;
    padding:10px 20px 4px;
    /* font-family:'Share Tech Mono',monospace; font-size:11px; */
    font-family:Arial, Helvetica, sans-serif; font-size:11px;
    color:var(--text-dim); letter-spacing:0.05em;
}

.header {
    padding:8px 20px 16px;
    display:flex; align-items:center; justify-content:space-between;
}

.logo {
    font-family:Arial, Helvetica, sans-serif; font-weight:900; font-size:20px;
    letter-spacing:0.15em;
    background:linear-gradient(135deg,var(--accent),var(--accent2));
    -webkit-background-clip:text; -webkit-text-fill-color:transparent; background-clip:text;
}
.logo span {
    background:linear-gradient(135deg,var(--accent2),var(--accent3));
    -webkit-background-clip:text; -webkit-text-fill-color:transparent; background-clip:text;
}
.logo img {
    width: 100%; max-width: 250px; height: auto;
}

.admin-btn {
    width:38px; height:38px; border-radius:12px;
    border:1px solid var(--border); background:var(--card);
    color:var(--text-dim); display:flex; align-items:center; justify-content:center;
    cursor:pointer; transition:all 0.2s; font-size:18px;
}
.admin-btn:hover { border-color:var(--accent); color:var(--accent); box-shadow:var(--glow); }

.screen { display:none; flex:1; padding:0 16px 20px; animation:fadeIn 0.3s ease; }
.screen.active { display:flex; flex-direction:column; }

@keyframes fadeIn { from{opacity:0;transform:translateY(8px)} to{opacity:1;transform:translateY(0)} }

/* QR card */
.qr-card {
    background:var(--card); border:1px solid var(--border);
    border-radius:24px; padding:22px 20px 18px;
    text-align:center; position:relative; overflow:hidden;
    margin-bottom:14px;
}
.qr-card::before {
    content:''; position:absolute; top:0; left:0; right:0; height:2px;
    background:linear-gradient(90deg,transparent,var(--accent),var(--accent2),transparent);
    animation:scanLine 3s ease-in-out infinite;
}
@keyframes scanLine { 0%,100%{opacity:0;transform:scaleX(0.3)} 50%{opacity:1;transform:scaleX(1)} }

.qr-label {
    font-family:'Orbitron',monospace; font-size:11px;
    letter-spacing:0.2em; color:var(--accent); text-transform:uppercase;
    margin-bottom:16px;
    display:flex; align-items:center; justify-content:center; gap:8px;
}

.dot {
    width:6px; height:6px; border-radius:50%; background:var(--accent3);
    animation:pulse 1s ease-in-out infinite;
}
@keyframes pulse { 0%,100%{opacity:1;transform:scale(1)} 50%{opacity:0.4;transform:scale(0.8)} }

/* QR wrapper — white box with glow */
#qr-wrapper {
    display:inline-flex; align-items:center; justify-content:center;
    position:relative;
    background:#fff;
    border-radius:16px;
    padding:14px;
    margin:0 auto 16px;
    box-shadow:
    0 0 12px 1px rgba(0, 213, 255, 0.1),
    /* 0 0 12px rgba(0,212,255,0.15), */
    0 8px 16px rgba(0,0,0,0.35);
    transition:opacity 0.25s ease, transform 0.25s ease;
}
#qr-wrapper.refreshing { opacity:0.1; transform:scale(0.88); }

#qr-canvas {
    display:block;
    image-rendering:-webkit-optimize-contrast;
    image-rendering:pixelated;
    image-rendering:crisp-edges;
}

.corner {
    position:absolute; width:22px; height:22px;
    border-color:var(--accent); border-style:solid;
}
.corner-tl{top:-7px;left:-7px;border-width:2px 0 0 2px;border-radius:4px 0 0 0}
.corner-tr{top:-7px;right:-7px;border-width:2px 2px 0 0;border-radius:0 4px 0 0}
.corner-bl{bottom:-7px;left:-7px;border-width:0 0 2px 2px;border-radius:0 0 0 4px}
.corner-br{bottom:-7px;right:-7px;border-width:0 2px 2px 0;border-radius:0 0 4px 0}

.no-code-msg {
    display:flex; flex-direction:column; align-items:center;
    gap:10px; padding:28px 10px; color:var(--text-dim); text-align:center;
}
.no-code-icon { font-size:44px; opacity:0.35; }
.no-code-msg p { font-size:13px; line-height:1.6; }

.timer-section { display:flex; align-items:center; gap:12px; }
.timer-bar-wrap { flex:1; height:4px; background:rgba(255,255,255,0.06); border-radius:2px; overflow:hidden; }
.timer-bar {
    height:100%; border-radius:2px;
    background:linear-gradient(90deg,var(--accent2),var(--accent));
    transition:width 1s linear;
}
.timer-bar.danger { background:linear-gradient(90deg,var(--danger),#FF8800); }
.timer-count {
    font-family:'Orbitron',monospace; font-size:16px; font-weight:700;
    min-width:28px; text-align:right; color:var(--accent);
}
.timer-count.danger { color:var(--danger); }

/* Info grid */
.info-grid { display:grid; grid-template-columns:1fr 1fr; gap:10px; margin-bottom:12px; text-align:center; }
.info-card {
    background:var(--card); border:1px solid var(--border);
    border-radius:16px; padding:14px 16px;
}
.info-card.full { grid-column:1/-1; }
.info-card-label { 
    font-size:10px; letter-spacing:0.12em; color:var(--text-dim); text-transform:uppercase;
    vertical-align: middle;
    /* margin-bottom:6px;  */
}
.info-card-value { 
    font-family:'Share Tech Mono',monospace; 
    font-size:13px; 
    color:var(--accent); 
    word-break:break-all; }
.info-card-value.big { font-size:22px; color:var(--text); letter-spacing:0.05em; }
.inline { display:inline-block !important;}
.svg-icon {
    width:20px; fill:var(--accent); 
    /* vertical-align:middle;  */
    opacity:0.7;
    transition:fill 0.2s ease;
}


/* Modals */
.modal-overlay {
    position:fixed; inset:0; background:rgba(0,0,0,0.82);
    z-index:100; display:none; align-items:center; justify-content:center;
    padding:20px; backdrop-filter:blur(8px);
}
.modal-overlay.active { display:flex; animation:fadeIn 0.2s ease; }

.modal {
    background:var(--card); border:1px solid var(--border);
    border-radius:24px; padding:26px 20px;
    width:100%; max-width:360px;
    animation:modalIn 0.3s cubic-bezier(0.34,1.56,0.64,1);
}
@keyframes modalIn { from{transform:scale(0.85) translateY(20px);opacity:0} to{transform:scale(1) translateY(0);opacity:1} }

.modal-title { font-family:'Orbitron',monospace; font-size:14px; letter-spacing:0.15em; margin-bottom:18px; color:var(--accent); }

.panel-scroll { max-height:78vh; overflow-y:auto; padding-right:2px; }

.section-label { font-family:'Orbitron',monospace; font-size:10px; letter-spacing:0.18em; color:var(--text-dim); text-transform:uppercase; margin-bottom:12px; }
.section-divider { height:1px; background:var(--border); margin:18px 0; }

.field { margin-bottom:13px; }
.field label { display:block; font-size:11px; letter-spacing:0.1em; color:var(--text-dim); text-transform:uppercase; margin-bottom:7px; }
.field input {
    width:100%; background:var(--surface); border:1px solid var(--border);
    border-radius:12px; padding:13px 15px;
    color:var(--text); font-family:'Share Tech Mono',monospace; font-size:15px;
    outline:none; transition:all 0.2s; -webkit-appearance:none;
}
.field input:focus { border-color:var(--accent); box-shadow:0 0 0 3px rgba(0,212,255,0.08); }
.field input::placeholder { color:var(--text-dim); opacity:0.5; }
.field small { display:block; font-size:10px; color:var(--text-dim); margin-top:5px; line-height:1.5; }

.btn {
    width:100%; padding:15px; border:none; border-radius:13px;
    font-family:'Orbitron',monospace; font-size:12px; letter-spacing:0.15em;
    cursor:pointer; transition:all 0.2s; display:block;
}
.btn-primary { background:linear-gradient(135deg,var(--accent2),var(--accent)); color:#fff; box-shadow:0 4px 20px rgba(0,212,255,0.18); }
.btn-primary:hover { transform:translateY(-1px); box-shadow:0 8px 28px rgba(0,212,255,0.3); }
.btn-ghost { background:rgba(255,255,255,0.04); border:1px solid var(--border); color:var(--text-dim); margin-top:8px; }
.btn-ghost:hover { border-color:var(--accent); color:var(--accent); }
.btn-danger { background:rgba(255,61,107,0.08); border:1px solid rgba(255,61,107,0.25); color:var(--danger); margin-top:6px; }

.alert { padding:11px 14px; border-radius:11px; font-size:12px; margin-bottom:12px; display:none; }
.alert.show { display:block; animation:fadeIn 0.2s ease; }
.alert-error { background:rgba(255,61,107,0.1); border:1px solid rgba(255,61,107,0.3); color:#FF7A9A; }
.alert-success { background:rgba(0,255,159,0.08); border:1px solid rgba(0,255,159,0.3); color:var(--accent3); }

.code-badge {
    display:flex; align-items:center; gap:8px;
    background:rgba(0,255,159,0.06); border:1px solid rgba(0,255,159,0.2);
    border-radius:12px; padding:10px 14px; margin-bottom:14px;
}
.code-badge-label { font-size:10px; color:var(--text-dim); letter-spacing:0.1em; text-transform:uppercase; }
.code-badge-val { font-family:'Share Tech Mono',monospace; font-size:18px; color:var(--accent3); letter-spacing:0.2em; }

@keyframes shake {
    0%,100%{transform:translateX(0)}
    20%{transform:translateX(-8px)}
    40%{transform:translateX(8px)}
    60%{transform:translateX(-5px)}
    80%{transform:translateX(5px)}
}
.shake { animation:shake 0.4s ease; }

::-webkit-scrollbar { width:3px; }
::-webkit-scrollbar-thumb { background:var(--border); border-radius:2px; }