/* Favicon Audit Tool — Red Dark Theme */
:root {
  --primary:#EF4444;--primary-light:#F87171;--primary-dark:#DC2626;
  --accent:#FECACA;--accent-dark:#FCA5A5;
  --bg-base:#0F172A;--bg-surface:#1E293B;--bg-elevated:#27364B;
  --bg-glass:rgba(30,41,59,0.7);--bg-glass-border:rgba(239,68,68,0.12);
  --text-primary:#F1F5F9;--text-secondary:#94A3B8;--text-muted:#64748B;
  --border:rgba(239,68,68,0.15);--border-strong:rgba(239,68,68,0.3);
  --radius:12px;--radius-sm:8px;--radius-xs:6px;
  --shadow:0 4px 24px rgba(0,0,0,0.35);
  --font-sans:'Inter',-apple-system,BlinkMacSystemFont,'Segoe UI',sans-serif;
  --font-mono:'JetBrains Mono','Fira Code','Consolas',monospace;
  --transition:250ms ease;
  --success:#34D399;--warning:#FBBF24;--danger:#F87171;
}
*,*::before,*::after{margin:0;padding:0;box-sizing:border-box}
html{font-size:16px;scroll-behavior:smooth;-webkit-font-smoothing:antialiased}
body{font-family:var(--font-sans);background:var(--bg-base);color:var(--text-primary);line-height:1.6;min-height:100vh;display:flex;flex-direction:column;background-image:radial-gradient(ellipse at 30% 0%,rgba(239,68,68,.05) 0%,transparent 50%),radial-gradient(ellipse at 70% 100%,rgba(254,202,202,.03) 0%,transparent 50%)}
.glass-card{background:var(--bg-glass);backdrop-filter:blur(16px);-webkit-backdrop-filter:blur(16px);border:1px solid var(--bg-glass-border);border-radius:var(--radius);padding:1.5rem;box-shadow:var(--shadow);transition:border-color var(--transition)}
.glass-card:hover{border-color:var(--border-strong)}
.app-header{position:sticky;top:0;z-index:100;background:rgba(15,23,42,.88);backdrop-filter:blur(20px);border-bottom:1px solid var(--border);padding:.75rem 1.5rem}
.header-content{max-width:1100px;margin:0 auto;display:flex;align-items:center}
.logo-group{display:flex;align-items:center;gap:.75rem}
.logo-icon{width:40px;height:40px;display:flex;align-items:center;justify-content:center;background:rgba(239,68,68,.1);border-radius:var(--radius-sm);border:1px solid rgba(239,68,68,.2)}
.app-header h1{font-size:1.15rem;font-weight:700;background:linear-gradient(135deg,var(--primary-light),var(--primary));-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text}
.subtitle{font-size:.75rem;color:var(--text-muted)}
.container{max-width:1100px;margin:0 auto;padding:2rem 1.5rem;width:100%;flex:1;display:flex;flex-direction:column;gap:1.25rem}
.btn{display:inline-flex;align-items:center;gap:.4rem;padding:.55rem 1rem;font-family:var(--font-sans);font-size:.85rem;font-weight:500;border:1px solid var(--border);border-radius:var(--radius-sm);cursor:pointer;transition:all var(--transition);background:var(--bg-elevated);color:var(--text-primary)}
.btn:hover{border-color:var(--primary);background:rgba(239,68,68,.1)}
.btn:focus-visible{outline:2px solid var(--primary);outline-offset:2px}
.btn-primary{background:linear-gradient(135deg,var(--primary),var(--primary-dark));border-color:var(--primary);color:#fff;box-shadow:0 2px 12px rgba(239,68,68,.3)}
.btn-primary:hover{box-shadow:0 4px 20px rgba(239,68,68,.4);transform:translateY(-1px)}
.btn-sm{padding:.35rem .7rem;font-size:.8rem}
.btn-row{display:flex;gap:.5rem;margin-top:.75rem;flex-wrap:wrap}
.section-title{display:flex;align-items:center;gap:.5rem;font-size:1rem;font-weight:600;color:var(--primary-light);margin-bottom:1rem}
.code-textarea{width:100%;padding:1rem;font-family:var(--font-mono);font-size:.8rem;line-height:1.7;color:var(--text-primary);background:var(--bg-base);border:1px solid var(--border);border-radius:var(--radius-sm);resize:vertical;transition:border-color var(--transition)}
.code-textarea::placeholder{color:var(--text-muted)}
.code-textarea:focus{outline:none;border-color:var(--primary);box-shadow:0 0 0 3px rgba(239,68,68,.15)}
.error-banner{padding:.75rem 1rem;background:rgba(239,68,68,.08);border:1px solid rgba(239,68,68,.3);border-radius:var(--radius-sm);color:var(--primary-light);font-size:.85rem}
/* Stats */
.stats-row{display:grid;grid-template-columns:repeat(4,1fr);gap:.75rem}
.stat-card{text-align:center;padding:1rem}
.stat-value{font-size:1.75rem;font-weight:700;color:var(--success)}
.stat-warn{color:var(--warning)!important}
.stat-danger{color:var(--danger)!important}
.stat-label{font-size:.72rem;color:var(--text-muted);text-transform:uppercase;letter-spacing:.04em;margin-top:.25rem}
/* Icon List */
.icon-list{display:flex;flex-direction:column;gap:.5rem}
.icon-item{display:flex;align-items:center;gap:1rem;padding:.75rem 1rem;background:var(--bg-base);border:1px solid var(--border);border-radius:var(--radius-sm)}
.icon-type{font-size:.82rem;font-weight:600;color:var(--text-primary);min-width:140px}
.icon-value{font-size:.78rem;font-family:var(--font-mono);color:var(--text-secondary);flex:1;word-break:break-all}
.icon-status{font-size:.7rem;font-weight:600;padding:.2rem .5rem;border-radius:4px}
.status-ok{background:rgba(52,211,153,.12);color:var(--success)}
.status-warn{background:rgba(251,191,36,.12);color:var(--warning)}
.status-error{background:rgba(248,113,113,.12);color:var(--danger)}
/* Compat Table */
.compat-table-wrap{overflow-x:auto}
.compat-table{width:100%;border-collapse:collapse;font-size:.8rem}
.compat-table th,.compat-table td{padding:.5rem .75rem;text-align:center;border-bottom:1px solid var(--border)}
.compat-table th{color:var(--text-muted);font-weight:600;font-size:.72rem;text-transform:uppercase;letter-spacing:.04em}
.compat-table td:first-child{text-align:left;font-weight:500;color:var(--text-primary)}
.compat-check{color:var(--success);font-weight:700}
.compat-miss{color:var(--text-muted)}
/* Fix List */
.fix-list{display:flex;flex-direction:column;gap:.5rem}
.fix-item{padding:.6rem .8rem;background:var(--bg-base);border:1px solid var(--border);border-radius:var(--radius-sm);font-size:.82rem;display:flex;align-items:flex-start;gap:.5rem}
.fix-icon{flex-shrink:0;font-size:1rem}
.fix-text{color:var(--text-secondary)}
.fix-text code{font-family:var(--font-mono);background:rgba(239,68,68,.08);padding:.1rem .3rem;border-radius:3px;font-size:.75rem;color:var(--accent)}
/* Toast */
.toast{position:fixed;bottom:1.5rem;right:1.5rem;background:var(--bg-elevated);border:1px solid var(--primary);color:var(--primary-light);padding:.5rem 1rem;border-radius:var(--radius-sm);font-size:.8rem;z-index:200;transform:translateY(80px);opacity:0;transition:all .3s;pointer-events:none}
.toast.show{transform:translateY(0);opacity:1}
.app-footer{text-align:center;padding:1.5rem;font-size:.75rem;color:var(--text-muted);border-top:1px solid var(--border)}
@media(max-width:768px){.container{padding:1rem}.glass-card{padding:1rem}.stats-row{grid-template-columns:repeat(2,1fr)}.icon-item{flex-wrap:wrap}.icon-type{min-width:100%}}
@media(max-width:480px){.app-header h1{font-size:1rem}.logo-icon{display:none}.stats-row{grid-template-columns:1fr 1fr}}