@import url('https://fonts.googleapis.com/css2?family=Inter:wght@400;500;600;700;800&display=swap');

:root {
  --bg-primary: #0a0e1a;
  --bg-card: #1a2035;
  --bg-input: #0d1321;
  --bg-card-hover: #1f2847;
  --text-primary: #f0f4ff;
  --text-secondary: #8b95b0;
  --text-muted: #5a6478;
  --accent-blue: #3b82f6;
  --accent-cyan: #22d3ee;
  --accent-green: #34d399;
  --accent-orange: #fb923c;
  --accent-red: #f87171;
  --accent-purple: #a78bfa;
  --border-color: rgba(59,130,246,0.15);
  --border-active: rgba(59,130,246,0.4);
  --radius-sm: 8px;
  --radius-md: 12px;
  --radius-lg: 16px;
}

*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
html{font-size:16px;-webkit-text-size-adjust:100%}
body{font-family:'Inter',sans-serif;background:var(--bg-primary);color:var(--text-primary);line-height:1.6;min-height:100vh;overflow-x:hidden;-webkit-font-smoothing:antialiased}
body::before{content:'';position:fixed;inset:0;background:radial-gradient(600px 400px at 20% 20%,rgba(59,130,246,.06),transparent),radial-gradient(500px 350px at 80% 70%,rgba(34,211,238,.04),transparent);pointer-events:none;z-index:0}

.app-container{position:relative;z-index:1;max-width:480px;margin:0 auto;padding:16px;min-height:100vh}

.app-header{text-align:center;padding:20px 0 16px;margin-bottom:20px}
.app-logo{display:inline-flex;align-items:center;justify-content:center;width:56px;height:56px;background:linear-gradient(135deg,#3b82f6,#22d3ee);border-radius:var(--radius-md);margin-bottom:12px;box-shadow:0 4px 20px rgba(59,130,246,.25);animation:logoPulse 3s ease-in-out infinite}
@keyframes logoPulse{0%,100%{box-shadow:0 4px 20px rgba(59,130,246,.25)}50%{box-shadow:0 4px 30px rgba(59,130,246,.35)}}
.app-logo svg{width:28px;height:28px;fill:white}
.app-title{font-size:1.35rem;font-weight:800;background:linear-gradient(135deg,#3b82f6,#22d3ee);-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text}
.app-subtitle{font-size:.8rem;color:var(--text-muted);font-weight:500;margin-top:2px}

.card{background:var(--bg-card);border:1px solid var(--border-color);border-radius:var(--radius-lg);padding:20px;margin-bottom:16px;box-shadow:0 2px 8px rgba(0,0,0,.3);transition:border-color .25s}
.card:hover{border-color:var(--border-active)}
.card-title{font-size:.75rem;font-weight:700;text-transform:uppercase;letter-spacing:.08em;color:var(--text-secondary);margin-bottom:14px;display:flex;align-items:center;gap:8px}

.olt-selector{display:grid;grid-template-columns:1fr 1fr;gap:10px}
.olt-btn{display:flex;flex-direction:column;align-items:center;gap:6px;padding:14px 10px;background:var(--bg-input);border:2px solid var(--border-color);border-radius:var(--radius-md);color:var(--text-secondary);font-family:inherit;font-size:.82rem;font-weight:600;cursor:pointer;transition:all .25s;position:relative;overflow:hidden}
.olt-btn::before{content:'';position:absolute;top:0;left:0;right:0;height:3px;background:linear-gradient(135deg,#3b82f6,#22d3ee);opacity:0;transition:opacity .25s}
.olt-btn:hover{border-color:var(--accent-blue);color:var(--text-primary);background:var(--bg-card-hover)}
.olt-btn.active{border-color:var(--accent-blue);color:var(--text-primary);background:rgba(59,130,246,.08);box-shadow:0 0 16px rgba(59,130,246,.25)}
.olt-btn.active::before{opacity:1}
.olt-btn .olt-ip{font-size:.7rem;color:var(--text-muted);font-weight:500;font-family:'Courier New',monospace}

.sn-input-group, .manual-input-group{display:flex;gap:10px}
.sn-input, .manual-input{flex:1;min-width:0;background:var(--bg-input);border:1px solid var(--border-color);color:var(--text-primary);padding:12px;border-radius:var(--radius-sm);font-size:1rem}
.sn-input:focus, .manual-input:focus{outline:none;border-color:var(--accent-blue)}

.tabs{display:flex;gap:10px;margin-bottom:15px;border-bottom:1px solid var(--border-color);padding-bottom:10px}
.tab-btn{flex:1;padding:8px;background:transparent;border:none;color:var(--text-secondary);font-family:inherit;font-weight:700;cursor:pointer;transition:color .2s;border-radius:var(--radius-sm)}
.tab-btn.active{color:var(--accent-blue);background:rgba(59,130,246,.1)}
.tab-content{display:none}
.tab-content.active{display:block}

.btn-detect{padding:14px 22px;background:linear-gradient(135deg,#3b82f6,#22d3ee);border:none;border-radius:var(--radius-md);color:white;font-family:inherit;font-size:.85rem;font-weight:700;cursor:pointer;transition:all .25s;white-space:nowrap}
.btn-detect:hover{transform:translateY(-1px);box-shadow:0 4px 16px rgba(59,130,246,.25)}
.btn-detect:active{transform:translateY(0)}
.btn-detect:disabled{opacity:.5;cursor:not-allowed;transform:none}
.btn-detect .spinner{display:none;width:18px;height:18px;border:2px solid rgba(255,255,255,.3);border-top-color:white;border-radius:50%;animation:spin .6s linear infinite}
.btn-detect.loading .btn-text{display:none}
.btn-detect.loading .spinner{display:inline-block}
@keyframes spin{to{transform:rotate(360deg)}}

.result-card{display:none;background:var(--bg-card);border:1px solid var(--accent-green);border-radius:var(--radius-lg);padding:20px;margin-bottom:16px;box-shadow:0 0 20px rgba(52,211,153,.15);animation:slideIn .3s ease}
.result-card.visible{display:block}
.result-card.error{border-color:var(--accent-red);box-shadow:0 0 20px rgba(248,113,113,.15)}
@keyframes slideIn{from{opacity:0;transform:translateY(-10px)}to{opacity:1;transform:translateY(0)}}
.result-row{display:flex;justify-content:space-between;align-items:center;padding:8px 0;border-bottom:1px solid rgba(255,255,255,.05)}
.result-row:last-child{border-bottom:none}
.result-label{font-size:.75rem;color:var(--text-secondary);font-weight:500}
.result-value{font-size:.9rem;font-weight:700;color:var(--text-primary);font-family:'Courier New',monospace}
.result-value.customer-id{color:var(--accent-cyan);font-size:1.05rem}
.result-value.location{color:var(--accent-green)}

.mapping-section{display:none}.mapping-section.visible{display:block}
.mapping-header{display:flex;justify-content:space-between;align-items:center;margin-bottom:14px}
.mapping-info{font-size:.8rem;color:var(--text-secondary)}.mapping-info strong{color:var(--accent-cyan)}

.port-grid{display:none;flex-direction:column;gap:8px;margin-top:12px;animation:fadeIn .25s ease}
.port-grid.visible{display:flex}
@keyframes fadeIn{from{opacity:0}to{opacity:1}}

.port-item{display:flex;align-items:center;gap:10px;padding:10px 14px;background:var(--bg-input);border:1px solid var(--border-color);border-radius:var(--radius-sm);transition:all .15s}
.port-item:hover{border-color:var(--border-active)}
.port-number{font-size:.75rem;font-weight:700;color:var(--text-muted);min-width:28px;text-align:center;padding:3px 6px;background:rgba(255,255,255,.04);border-radius:4px;font-family:'Courier New',monospace}
.port-value{flex:1;font-size:.85rem;font-weight:600;color:var(--text-secondary);min-height:22px;display:flex;align-items:center}
.port-value.filled{color:var(--accent-cyan)}
.port-value.question{color:var(--accent-orange)}
.port-value.empty-val{color:var(--text-muted);font-style:italic}

.port-actions{display:flex;gap:6px}
.port-btn{padding:6px 12px;border:1px solid var(--border-color);border-radius:6px;background:var(--bg-card);color:var(--text-secondary);font-family:inherit;font-size:.7rem;font-weight:700;cursor:pointer;transition:all .15s;white-space:nowrap}
.port-btn:hover{border-color:var(--accent-blue);color:var(--text-primary)}
.port-btn.take{background:rgba(59,130,246,.12);border-color:rgba(59,130,246,.3);color:var(--accent-blue)}
.port-btn.take:hover{background:rgba(59,130,246,.2)}
.port-btn.question-btn{background:rgba(251,146,60,.1);border-color:rgba(251,146,60,.3);color:var(--accent-orange)}
.port-btn.question-btn:hover{background:rgba(251,146,60,.2)}
.port-btn.empty-btn{background:rgba(255,255,255,.03)}

.btn-show-ports{width:100%;padding:16px;background:var(--bg-input);border:2px dashed var(--border-color);border-radius:var(--radius-md);color:var(--text-secondary);font-family:inherit;font-size:.85rem;font-weight:600;cursor:pointer;transition:all .25s;margin-top:8px}
.btn-show-ports:hover{border-color:var(--accent-blue);color:var(--text-primary);background:var(--bg-card-hover)}
.btn-show-ports.hidden{display:none}

.power-section{display:none}.power-section.visible{display:block}
.btn-check-power{width:100%;padding:14px;background:linear-gradient(135deg,#6366f1,#a78bfa);border:none;border-radius:var(--radius-md);color:white;font-family:inherit;font-size:.85rem;font-weight:700;cursor:pointer;transition:all .25s;margin-bottom:14px}
.btn-check-power:hover{transform:translateY(-1px);box-shadow:0 4px 16px rgba(167,139,250,.15)}
.btn-check-power:disabled{opacity:.5;cursor:not-allowed;transform:none}
.power-changes{display:flex;flex-direction:column;gap:8px}
.power-change-item{display:flex;align-items:center;gap:10px;padding:10px 14px;border-radius:var(--radius-sm);font-size:.85rem;font-weight:600;animation:slideIn .2s ease}
.power-change-item.loss{background:rgba(248,113,113,.15);border:1px solid rgba(248,113,113,.3);color:var(--accent-red)}
.power-change-item.up{background:rgba(52,211,153,.15);border:1px solid rgba(52,211,153,.3);color:var(--accent-green)}
.power-no-changes{text-align:center;color:var(--text-muted);font-size:.8rem;padding:16px}

.btn-copy{width:100%;padding:16px;background:linear-gradient(135deg,#34d399,#22d3ee);border:none;border-radius:var(--radius-md);color:white;font-family:inherit;font-size:.9rem;font-weight:700;cursor:pointer;transition:all .25s;margin-top:12px;display:none}
.btn-copy.visible{display:block}
.btn-copy:hover{transform:translateY(-1px);box-shadow:0 4px 16px rgba(52,211,153,.15)}
.btn-copy.copied{background:var(--accent-green)}

.toast{position:fixed;bottom:24px;left:50%;transform:translateX(-50%) translateY(100px);background:rgba(26,32,53,.85);backdrop-filter:blur(16px);border:1px solid var(--border-active);border-radius:var(--radius-md);padding:12px 24px;color:var(--text-primary);font-size:.85rem;font-weight:600;box-shadow:0 8px 32px rgba(0,0,0,.5);z-index:1000;transition:transform .3s cubic-bezier(.4,0,.2,1);pointer-events:none}
.toast.show{transform:translateX(-50%) translateY(0)}

.modal-overlay{display:none;position:fixed;inset:0;background:rgba(0,0,0,.7);backdrop-filter:blur(4px);z-index:900;align-items:center;justify-content:center;padding:20px}
.modal-overlay.show{display:flex}
.modal-content{background:var(--bg-card);border:1px solid var(--border-active);border-radius:var(--radius-lg);padding:24px;width:100%;max-width:380px;box-shadow:0 8px 32px rgba(0,0,0,.5);animation:slideIn .2s ease}
.modal-title{font-size:1rem;font-weight:700;margin-bottom:16px}
.modal-input{width:100%;padding:14px 16px;background:var(--bg-input);border:2px solid var(--border-color);border-radius:var(--radius-md);color:var(--text-primary);font-family:'Courier New',monospace;font-size:1rem;font-weight:600;outline:none;margin-bottom:16px;transition:border-color .25s}
.modal-input:focus{border-color:var(--accent-blue)}
.modal-actions{display:flex;gap:10px}
.modal-btn{flex:1;padding:12px;border:none;border-radius:var(--radius-sm);font-family:inherit;font-size:.85rem;font-weight:700;cursor:pointer;transition:all .15s}
.modal-btn.cancel{background:var(--bg-input);color:var(--text-secondary);border:1px solid var(--border-color)}
.modal-btn.confirm{background:linear-gradient(135deg,#3b82f6,#22d3ee);color:white}
.modal-btn:hover{transform:translateY(-1px)}

.modal-port-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:8px;margin-top:16px}
.modal-port-btn{padding:12px 8px;background:var(--bg-input);border:1px solid var(--border-color);border-radius:var(--radius-sm);color:var(--text-primary);font-size:.75rem;font-weight:700;cursor:pointer;transition:all .15s}
.modal-port-btn:hover{border-color:var(--accent-blue);background:rgba(59,130,246,.1)}
.modal-port-btn.filled{opacity:0.5;cursor:not-allowed;background:var(--bg-card)}

.status-badge{display:inline-flex;align-items:center;gap:5px;padding:3px 10px;border-radius:20px;font-size:.7rem;font-weight:700}
.status-badge.online{background:rgba(52,211,153,.15);color:var(--accent-green);border:1px solid rgba(52,211,153,.3)}
.status-badge .dot{width:6px;height:6px;border-radius:50%;background:currentColor;animation:blink 2s ease-in-out infinite}
@keyframes blink{0%,100%{opacity:1}50%{opacity:.3}}

@media(max-width:380px){.app-container{padding:10px}.sn-input-group, .manual-input-group{flex-direction:column}.btn-detect{width:100%}.port-actions{flex-wrap:wrap}.port-btn{padding:5px 8px;font-size:.65rem}}
::-webkit-scrollbar{width:4px}::-webkit-scrollbar-track{background:var(--bg-primary)}::-webkit-scrollbar-thumb{background:var(--border-color);border-radius:4px}::-webkit-scrollbar-thumb:hover{background:var(--accent-blue)}