:root{--bg-dark: #0B1120;--bg-card: #151B2B;--accent-green: #20D756;--text-white: #FFFFFF;--text-grey: #D1D5DB;--text-muted: #9CA3AF;--border-color: #1F2937}body{font-family:Montserrat,sans-serif;background:var(--bg-dark);color:var(--text-white);min-height:100vh;display:flex;flex-direction:column}html,body,#root{height:100%}main.container{flex:1 0 auto;padding-top:1rem;padding-bottom:1rem;max-width:1400px}.footer{margin-top:auto;flex-shrink:0;background:#060a12;color:var(--text-grey);padding:1.5rem 0;border-top:1px solid var(--border-color)}.navbar{background:var(--bg-dark)!important;border-bottom:1px solid var(--border-color);padding:1rem 0}.navbar-brand{color:var(--text-white)!important;font-weight:700}.nav-link{color:var(--text-grey)!important;transition:color .2s}.nav-link:hover{color:var(--accent-green)!important}.btn-outline-primary{border-color:var(--accent-green);color:var(--accent-green)}.btn-outline-primary:hover{background:var(--accent-green);border-color:var(--accent-green);color:var(--bg-dark)}.hero{background:linear-gradient(135deg,#1a2332,#0d1421);color:var(--text-white);padding:3rem 1rem;border-radius:12px;margin-bottom:2rem;border:1px solid var(--border-color)}.hero h1{color:var(--text-white);font-weight:700;margin-bottom:1rem}.hero .lead{color:var(--text-grey)}.hero .btn-light{background:var(--accent-green);border:none;color:var(--bg-dark);font-weight:600;padding:.5rem 1rem;margin-right:.5rem;margin-bottom:.5rem;transition:all .2s}.hero .btn-light:hover{background:#1bc94a;transform:translateY(-2px);box-shadow:0 4px 12px #20d7564d}.card{background:var(--bg-card);border:1px solid var(--border-color);border-radius:12px;transition:all .3s ease;height:100%;overflow:hidden}.card-hover:hover{transform:translateY(-8px);box-shadow:0 12px 24px #20d75626;border-color:var(--accent-green)}.card-title{color:var(--text-white);font-weight:600}.card-text{color:var(--text-grey)!important}.card-img-top{border-bottom:1px solid var(--border-color)}.card-grid{display:grid;grid-template-columns:repeat(1,1fr);gap:1.5rem;padding:0;margin-bottom:2rem}@media (min-width: 768px){.card-grid{grid-template-columns:repeat(2,1fr)}}@media (min-width: 992px){.card-grid{grid-template-columns:repeat(3,1fr)}}@media (min-width: 1200px){.card-grid{grid-template-columns:repeat(4,1fr)}}.instrument-grid{display:grid;grid-template-columns:repeat(1,1fr);gap:1.5rem;padding:0}@media (min-width: 768px){.instrument-grid{grid-template-columns:repeat(2,1fr)}}@media (min-width: 992px){.instrument-grid{grid-template-columns:repeat(3,1fr)}}.btn-primary{background:var(--accent-green);border:none;color:var(--bg-dark);font-weight:600;padding:.6rem 1.5rem;transition:all .2s}.btn-primary:hover{background:#1bc94a;transform:translateY(-2px);box-shadow:0 4px 12px #20d7564d}.btn-secondary{background:var(--bg-card);border:1px solid var(--border-color);color:var(--text-grey)}.btn-secondary:hover{background:#1a2130;border-color:var(--text-grey)}.btn-outline-secondary{border-color:var(--border-color);color:var(--text-grey)}.btn-outline-secondary:hover{background:var(--bg-card);border-color:var(--text-grey)}.form-control,.form-select{background:var(--bg-card);border:1px solid var(--border-color);color:var(--text-white);padding:.6rem 1rem}.form-control:focus,.form-select:focus{background:var(--bg-card);border-color:var(--accent-green);color:var(--text-white);box-shadow:0 0 0 .2rem #20d75640}.form-control::placeholder{color:var(--text-muted)}.form-label{color:var(--text-grey);font-weight:500;margin-bottom:.5rem}.form-check-input{background-color:var(--bg-card);border-color:var(--border-color)}.form-check-input:checked{background-color:var(--accent-green);border-color:var(--accent-green)}.form-text{color:var(--text-muted)}.alert{border-radius:8px;border:1px solid var(--border-color)}.alert-danger{background:#ef44441a;color:#fca5a5;border-color:#ef44444d}.alert-success{background:#20d7561a;color:var(--accent-green);border-color:#20d7564d}.table{color:var(--text-grey);border-color:var(--border-color)}.table thead th{background:var(--bg-card);color:var(--text-white);border-color:var(--border-color);font-weight:600}.table tbody tr{background:transparent;border-color:var(--border-color)}.table tbody tr:hover{background:#20d7560d}.list-group-item{background:var(--bg-card);border-color:var(--border-color);color:var(--text-grey)}.list-group-item strong{color:var(--text-white)}.instrument-page-container{display:grid;grid-template-columns:1fr;gap:2rem;min-height:calc(100vh - 200px)}@media (min-width: 992px){.instrument-page-container{grid-template-columns:1fr 1fr;gap:3rem}}.instrument-image-section{display:flex;align-items:center;justify-content:center;background:var(--bg-card);border-radius:12px;padding:2rem;border:1px solid var(--border-color)}.instrument-image-section img{max-width:100%;max-height:600px;object-fit:contain;border-radius:8px}.instrument-details-section{display:flex;flex-direction:column;gap:1.5rem}.instrument-details-scroll{background:var(--bg-card);border:1px solid var(--border-color);border-radius:12px;padding:2rem;max-height:600px;overflow-y:auto}.instrument-details-scroll::-webkit-scrollbar{width:8px}.instrument-details-scroll::-webkit-scrollbar-track{background:var(--bg-dark);border-radius:4px}.instrument-details-scroll::-webkit-scrollbar-thumb{background:var(--border-color);border-radius:4px}.instrument-details-scroll::-webkit-scrollbar-thumb:hover{background:var(--text-muted)}.instrument-details-scroll h2{color:var(--text-white);font-weight:700;margin-bottom:1.5rem}.instrument-details-scroll h5{color:var(--accent-green);font-weight:600;margin-top:1.5rem;margin-bottom:1rem}.desc-box{color:var(--text-grey);line-height:1.8;white-space:pre-wrap;word-break:break-word}.video-container{background:var(--bg-card);border:1px solid var(--border-color);border-radius:12px;overflow:hidden}.ratio{border-radius:12px;overflow:hidden}.pdf-link{display:inline-flex;align-items:center;gap:.5rem;background:var(--bg-card);border:1px solid var(--border-color);color:var(--accent-green);padding:1rem 1.5rem;border-radius:8px;text-decoration:none;transition:all .2s;font-weight:500}.pdf-link:hover{background:#20d7561a;border-color:var(--accent-green);color:var(--accent-green);transform:translateY(-2px)}.admin-section{background:var(--bg-card);border:1px solid var(--border-color);border-radius:12px;padding:2rem;margin-bottom:2rem}.admin-section h5{color:var(--text-white);font-weight:600;margin-bottom:1.5rem;padding-bottom:.75rem;border-bottom:2px solid var(--accent-green)}.btn-outline-warning{border-color:#f59e0b;color:#f59e0b}.btn-outline-warning:hover{background:#f59e0b;border-color:#f59e0b;color:var(--bg-dark)}.btn-outline-danger{border-color:#ef4444;color:#ef4444}.btn-outline-danger:hover{background:#ef4444;border-color:#ef4444;color:#fff}h1,h2,h3,h4,h5,h6{color:var(--text-white)}h3{font-weight:700;margin-bottom:1.5rem}a{color:var(--accent-green);text-decoration:none}a:hover{color:#1bc94a}.text-muted{color:var(--text-grey)!important}.fade-in{animation:fadeIn .36s ease both}@keyframes fadeIn{0%{opacity:0;transform:translateY(6px)}to{opacity:1;transform:translateY(0)}}@media (max-width: 768px){main.container{padding-top:.75rem}.hero{padding:2rem 1rem}.card-grid,.instrument-grid,.instrument-page-container{gap:1rem}.instrument-image-section{padding:1rem}.instrument-details-scroll{padding:1.5rem}}.toast{background:var(--bg-card);border:1px solid var(--border-color);color:var(--text-white)}.toast-header{background:var(--bg-card);border-bottom:1px solid var(--border-color);color:var(--text-white)}.toast-body{color:var(--text-grey)}.btn-close{filter:invert(1)}