:root{--antenna-primary: #f59e0b;--antenna-primary-rgb: 245, 158, 11;--antenna-accent: #fbbf24;--antenna-bg-glass: rgba(255, 255, 255, .7);--antenna-border: rgba(255, 255, 255, .4);--antenna-shadow: rgba(0, 0, 0, .08)}:global(.dark){--antenna-bg-glass: rgba(15, 23, 42, .7);--antenna-border: rgba(255, 255, 255, .05);--antenna-shadow: rgba(0, 0, 0, .3)}.antenna-calculator-ui{width:100%;max-width:1300px;margin:0 auto;padding:2.5rem 1.5rem}.tech-mega-card{background:var(--antenna-bg-glass);backdrop-filter:blur(24px) saturate(180%);-webkit-backdrop-filter:blur(24px) saturate(180%);border:1px solid var(--antenna-border);border-radius:40px;box-shadow:0 40px 100px -20px var(--antenna-shadow);overflow:hidden;position:relative}.tech-mega-card:before{content:"";position:absolute;top:0;left:0;right:0;height:6px;background:linear-gradient(90deg,#f59e0b,#fbbf24,#f59e0b);background-size:200% 100%;animation:gradientShift 4s linear infinite;z-index:10}@keyframes gradientShift{0%{background-position:0% 50%}to{background-position:200% 50%}}.card-grid{display:grid;grid-template-columns:380px 1fr;min-height:500px;width:100%}.config-sidebar{padding:3.5rem 3rem;background:#fff3;border-right:1px solid rgba(0,0,0,.05);display:flex;flex-direction:column;gap:2.5rem}:global(.dark) .config-sidebar{background:#ffffff03;border-right-color:#ffffff0d}.main-display{padding:3rem;display:flex;flex-direction:column;gap:2rem;position:relative;overflow:hidden;min-width:0}.section-title{display:flex;align-items:center;gap:.75rem;margin-bottom:1.5rem}.section-title [data-icon]{width:20px;height:20px;color:var(--antenna-primary)}.section-title h2{font-size:.75rem;font-weight:800;text-transform:uppercase;letter-spacing:.15em;color:#666;margin:0}:global(.dark) .section-title h2{color:#999}.input-group{display:flex;flex-direction:column;gap:.75rem}.input-with-unit{position:relative;display:flex;align-items:center}.input-with-unit input{width:100%;padding:1.25rem 1.5rem;background:#fff;border:2px solid rgba(0,0,0,.05);border-radius:20px;font-size:1.5rem;font-weight:800;transition:all .4s cubic-bezier(.175,.885,.32,1.275);box-shadow:inset 0 2px 4px #00000005}:global(.dark) .input-with-unit input{background:#0000004d;border-color:#ffffff1a;color:#fff}.input-with-unit input:focus{outline:none;border-color:var(--antenna-primary);box-shadow:0 0 0 5px rgba(var(--antenna-primary-rgb),.15);transform:translateY(-2px)}.unit{position:absolute;right:1.5rem;font-weight:800;color:var(--antenna-primary);font-size:.9rem;pointer-events:none;opacity:.7}.custom-range{width:100%;accent-color:var(--antenna-primary);margin-top:.5rem;height:6px;border-radius:3px;background:#0000001a}.preset-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:.75rem}.preset-btn{padding:.85rem;background:#fff;border:1px solid rgba(0,0,0,.08);border-radius:14px;font-size:.8rem;font-weight:700;cursor:pointer;transition:all .3s ease;box-shadow:0 2px 6px #00000005}:global(.dark) .preset-btn{background:#ffffff0d;border-color:#ffffff1a;color:#ddd}.preset-btn:hover{background:#fffbeb;border-color:var(--antenna-primary);color:var(--antenna-primary);transform:translateY(-2px);box-shadow:0 10px 20px rgba(var(--antenna-primary-rgb),.1)}.type-selector{display:grid;grid-template-columns:1fr 1fr;gap:1rem}.radio-card input{display:none}.radio-content{display:flex;flex-direction:column;align-items:center;gap:.75rem;padding:1.25rem;background:#fff;border:2px solid transparent;border-radius:20px;cursor:pointer;transition:all .4s ease;box-shadow:0 4px 12px #0000000a}:global(.dark) .radio-content{background:#ffffff08}.radio-card input:checked+.radio-content{border-color:var(--antenna-primary);background:linear-gradient(135deg,#fff,#fffbeb);box-shadow:0 15px 35px rgba(var(--antenna-primary-rgb),.15);transform:scale(1.02)}:global(.dark) .radio-card input:checked+.radio-content{background:linear-gradient(135deg,#ffffff0d,rgba(var(--antenna-primary-rgb),.1))}.radio-content [data-icon]{width:28px;height:28px;color:#888;transition:all .3s ease}.radio-card input:checked+.radio-content [data-icon]{color:var(--antenna-primary);transform:rotate(360deg)}.radio-content span{font-size:.85rem;font-weight:800}.results-hero{display:grid;grid-template-columns:1fr 1fr;gap:2rem}.mega-result{padding:3rem;border-radius:32px;position:relative;overflow:hidden;display:flex;flex-direction:column;justify-content:center;transition:all .5s ease}.mega-result.gold{background:linear-gradient(135deg,#f59e0b,#d97706);color:#fff;box-shadow:0 30px 60px #d977064d}.mega-result.glass{background:#fff6;border:1px solid rgba(255,255,255,.6);box-shadow:0 20px 40px #0000000a}:global(.dark) .mega-result.glass{background:#ffffff0d;border-color:#ffffff1a}.result-label{font-size:.9rem;font-weight:800;text-transform:uppercase;letter-spacing:.1em;margin-bottom:.5rem;opacity:.8}.result-value{display:flex;align-items:baseline;gap:.5rem}.result-value .number{font-size:4rem;font-weight:950;line-height:1;font-variant-numeric:tabular-nums}.result-value .unit{font-size:1.25rem;font-weight:800;opacity:.7;position:static}.visualizer-stage{flex:1;background:radial-gradient(circle at center,rgba(255,255,255,.5),transparent);border-radius:32px;border:2px solid rgba(255,255,255,.5);position:relative;display:flex;align-items:center;justify-content:center;overflow:hidden}:global(.dark) .visualizer-stage{background:radial-gradient(circle at center,rgba(255,255,255,.03),transparent);border-color:#ffffff0d}#antennaSvg{width:90%;height:90%;filter:drop-shadow(0 10px 20px rgba(0,0,0,.1))}.antenna-wire{stroke-width:8;stroke-linecap:round;transition:all .6s cubic-bezier(.34,1.56,.64,1)}.antenna-wire.active{stroke:var(--antenna-primary)}.feed-core{fill:#ef4444;stroke:#fff;stroke-width:2}.feed-point-gap{stroke-dasharray:2 1}.ground-plate{fill:#3b82f6;opacity:.8}.measuring-line{stroke:#0003;stroke-width:1;stroke-dasharray:4 4}:global(.dark) .measuring-line{stroke:#fff3}.harmonics-container{background:#00000005;padding:2rem;border-radius:24px}:global(.dark) .harmonics-container{background:#ffffff05}.harmonics-list{display:grid;grid-template-columns:repeat(3,1fr);gap:1rem}.harmonic-card{background:#fff;padding:.65rem .85rem;border-radius:12px;display:flex;flex-direction:column;gap:.1rem;box-shadow:0 2px 8px #00000003;border:1px solid rgba(0,0,0,.03)}:global(.dark) .harmonic-card{background:#ffffff08;border-color:#ffffff0d}.h-header{display:flex;justify-content:space-between;align-items:center;margin-bottom:.5rem}.h-badge{font-size:.6rem;font-weight:900;padding:2px 6px;background:rgba(var(--antenna-primary-rgb),.1);color:var(--antenna-primary);border-radius:4px;letter-spacing:.05em}.h-order{font-size:.7rem;font-weight:800;color:#999}.h-freq{font-size:1.05rem;font-weight:900;color:var(--antenna-primary)}.expert-reference-grid{display:grid;grid-template-columns:1fr 1fr;gap:1rem}.ref-card{background:#fff6;border:1px solid rgba(255,255,255,.6);padding:1rem;border-radius:16px;display:flex;align-items:center;gap:.75rem;transition:all .3s ease}:global(.dark) .ref-card{background:#ffffff0d;border-color:#ffffff1a}.ref-card:hover{transform:translateY(-3px);box-shadow:0 10px 20px #0000000d}.ref-card [data-icon]{width:28px;height:28px;color:var(--antenna-primary);background:rgba(var(--antenna-primary-rgb),.1);padding:8px;border-radius:12px}.ref-card h4{margin:0;font-size:.65rem;font-weight:800;text-transform:uppercase;letter-spacing:.1em;color:#888}.ref-card p{margin:0;font-size:1rem;font-weight:900;color:#444}:global(.dark) .ref-card p{color:#eee}.security-warning{margin-top:1rem;padding:1.5rem;background:#ef44440d;border:1px solid rgba(239,68,68,.1);border-radius:20px;display:flex;align-items:center;gap:1.25rem;animation:pulseBorder 3s infinite;box-sizing:border-box}:global(.dark) .security-warning{background:#ef444414}.security-warning [data-icon]{width:32px;height:32px;color:#ef4444;flex-shrink:0}.security-warning p{margin:0;font-size:.85rem;line-height:1.5;color:#444}:global(.dark) .security-warning p{color:#ccc}@keyframes pulseBorder{0%{border-color:#ef44441a}50%{border-color:#ef44444d}to{border-color:#ef44441a}}@media(max-width:1100px){.card-grid{grid-template-columns:1fr;min-height:auto}.config-sidebar{border-right:none;border-bottom:1px solid rgba(0,0,0,.05);padding:2.5rem 2rem}.main-display{padding:2.5rem 2rem}}@media(max-width:600px){.antenna-calculator-ui{padding:.5rem}.tech-mega-card{border-radius:24px}.config-sidebar{padding:1.5rem;gap:1.5rem}.main-display{padding:1.5rem;gap:2rem}.input-with-unit input{font-size:1.25rem;padding:1rem}.result-value .number{font-size:2.5rem}.mega-result{padding:1.5rem;border-radius:20px}.results-hero,.harmonics-list{grid-template-columns:1fr;gap:1rem}.h-freq{font-size:1.15rem}.section-title h2{font-size:.65rem}.expert-reference-grid{grid-template-columns:1fr;gap:.75rem}.ref-card{padding:1rem}.visualizer-stage{height:200px}.security-warning{padding:1rem;gap:.75rem;flex-direction:column;text-align:center}.security-warning [data-icon]{width:24px;height:24px}}.custom-select-premium[data-astro-cid-pqvlokz6]{width:100%;padding:1.1rem 3rem 1.1rem 1.25rem;background:#fff url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='24' height='24' viewBox='0 0 24 24'%3E%3Cpath fill='%23f59e0b' d='M7.41 8.58L12 13.17l4.59-4.59L18 10l-6 6l-6-6l1.41-1.42Z'/%3E%3C/svg%3E") no-repeat right 1rem center;border:2px solid rgba(0,0,0,.05);border-radius:18px;font-weight:700;font-size:.95rem;cursor:pointer;outline:none;appearance:none;-webkit-appearance:none;transition:all .3s ease;box-shadow:0 2px 5px #00000005}.dark .custom-select-premium[data-astro-cid-pqvlokz6]{background-color:#0f172a66;border-color:#ffffff1a;color:#fff}.custom-select-premium[data-astro-cid-pqvlokz6]:focus{border-color:var(--antenna-primary);box-shadow:0 5px 15px rgba(var(--antenna-primary-rgb),.1)}.svg-label-text[data-astro-cid-pqvlokz6]{font-size:12px;font-weight:800;fill:#999;text-transform:uppercase;letter-spacing:.1em}.dark .svg-label-text[data-astro-cid-pqvlokz6]{fill:#666}