*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
:root{
  --primary:#F43F5E;--primary-dim:rgba(244,63,94,.12);
  --secondary:#FB7185;--accent:#06B6D4;--accent-dim:rgba(6,182,212,.12);
  --bg:#1A0A0F;--surface:#261218;--surface2:#321A20;
  --border:rgba(244,63,94,.1);--text:#FFF1F2;--text-dim:#FDA4AF;
  --radius:12px;--font:'Inter',system-ui,sans-serif;
  --transition:250ms ease;
}
html{font-size:16px;scroll-behavior:smooth}
body{background:var(--bg);color:var(--text);font-family:var(--font);line-height:1.6;min-height:100vh}
.header{position:sticky;top:0;z-index:100;backdrop-filter:blur(16px);background:rgba(26,10,15,.8);border-bottom:1px solid var(--border)}
.header-inner{max-width:900px;margin:0 auto;padding:.75rem 1.5rem;display:flex;align-items:center}
.logo{display:flex;align-items:center;gap:.5rem}
.logo-icon{font-size:1.25rem}
.logo h1{font-size:1.1rem;font-weight:700;background:linear-gradient(135deg,var(--primary),var(--secondary));-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text}
.btn{display:inline-flex;align-items:center;gap:.3rem;padding:.5rem 1rem;border:none;border-radius:8px;font-size:.8rem;font-weight:600;cursor:pointer;transition:all var(--transition);font-family:var(--font)}
.btn-primary{background:linear-gradient(135deg,var(--primary),var(--secondary));color:#fff}
.btn-primary:hover{filter:brightness(1.15);transform:translateY(-1px)}
.main{max-width:900px;margin:0 auto;padding:1.5rem}
.glass-card{background:rgba(38,18,24,.6);backdrop-filter:blur(12px);border:1px solid var(--border);border-radius:var(--radius);padding:1.25rem;margin-bottom:1.25rem}
.section-title{font-size:.9rem;font-weight:700;margin-bottom:.75rem;display:flex;align-items:center;gap:.5rem}
.section-title::before{content:'';width:4px;height:18px;background:linear-gradient(to bottom,var(--primary),var(--secondary));border-radius:2px}
.calc-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:.75rem;align-items:end}
.form-group{display:flex;flex-direction:column;gap:.3rem}
.form-group input{background:var(--surface2);border:1px solid var(--border);border-radius:8px;padding:.5rem;color:var(--text);font-family:var(--font);font-size:.85rem;outline:none;width:100%}
.form-group input:focus{border-color:var(--primary)}
.ctrl-label{font-size:.7rem;font-weight:600;color:var(--text-dim);text-transform:uppercase;letter-spacing:.5px}
.stats-row{display:grid;grid-template-columns:repeat(4,1fr);gap:.75rem;margin-bottom:1.25rem}
.stat-card{background:rgba(38,18,24,.6);backdrop-filter:blur(12px);border:1px solid var(--border);border-radius:var(--radius);padding:.75rem;text-align:center}
.stat-val{font-size:1.4rem;font-weight:700;color:var(--primary)}
.stat-label{font-size:.65rem;color:var(--text-dim);text-transform:uppercase;letter-spacing:.5px;font-weight:600}
.presets-grid{display:flex;gap:.4rem;flex-wrap:wrap}
.preset-btn{padding:.35rem .75rem;border:1px solid var(--border);background:var(--surface);color:var(--text-dim);border-radius:20px;font-size:.7rem;font-weight:600;cursor:pointer;transition:all var(--transition);font-family:var(--font)}
.preset-btn:hover{background:var(--primary-dim);color:var(--primary);border-color:var(--primary)}
.table-wrap{overflow-x:auto}
.cmp-table{width:100%;border-collapse:collapse;font-size:.8rem}
.cmp-table th{text-align:left;padding:.5rem;border-bottom:1px solid var(--border);color:var(--primary);font-weight:600}
.cmp-table td{padding:.5rem;border-bottom:1px solid var(--border);color:var(--text-dim)}
.cmp-table .hi{color:var(--accent);font-weight:700}
.ref-text{font-size:.85rem;margin-bottom:.3rem}
.ref-text strong{color:var(--accent)}
.ref-text.dim{font-size:.75rem;color:var(--text-dim)}
.toast{position:fixed;bottom:2rem;left:50%;transform:translateX(-50%) translateY(100px);background:var(--surface2);color:var(--text);padding:.6rem 1.25rem;border-radius:var(--radius);font-size:.8rem;font-weight:500;border:1px solid var(--primary);box-shadow:0 8px 32px rgba(0,0,0,.4);transition:transform 300ms ease;z-index:9999;pointer-events:none}
.toast.show{transform:translateX(-50%) translateY(0)}
@media(max-width:600px){.calc-grid{grid-template-columns:1fr 1fr}.stats-row{grid-template-columns:repeat(2,1fr)}.main{padding:1rem}}