*,*:before,*:after{box-sizing:border-box;margin:0;padding:0}:root{--green: #1DB954;--green-dark: #17a349;--green-light: #1ed760;--bg: #0a0a0a;--bg-card: #141414;--bg-elevated: #1c1c1c;--border: #2a2a2a;--text: #ffffff;--text-secondary: #a0a0a0;--text-muted: #666666;--red: #e74c3c;--yellow: #f39c12;--radius: 12px;--radius-sm: 8px;--shadow: 0 4px 24px rgba(0,0,0,.4)}html{font-size:16px;-webkit-text-size-adjust:100%}body{font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Helvetica,Arial,sans-serif;background:var(--bg);color:var(--text);line-height:1.5;min-height:100vh;-webkit-font-smoothing:antialiased}a{color:var(--green);text-decoration:none}a:hover{text-decoration:underline}button{cursor:pointer;font-family:inherit;border:none;outline:none}button:disabled{opacity:.5;cursor:not-allowed}input,select,textarea{font-family:inherit;font-size:1rem}img{max-width:100%;display:block}.container{width:100%;max-width:640px;margin:0 auto;padding:0 16px}.page{min-height:100vh;padding:24px 0 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var(--green)}.concert-headliner{font-size:1.05rem;font-weight:700;margin-bottom:4px}.concert-supporting{font-size:.85rem;color:var(--text-secondary);margin-bottom:8px}.concert-meta{display:flex;flex-wrap:wrap;gap:8px;font-size:.82rem;color:var(--text-secondary);margin-bottom:12px}.concert-meta-item{display:flex;align-items:center;gap:4px}.concert-actions{display:flex;gap:8px;flex-wrap:wrap}.concert-actions a{display:inline-flex;align-items:center;gap:4px;padding:7px 14px;border-radius:50px;font-size:.82rem;font-weight:600;text-decoration:none;transition:all .15s}.concert-actions .btn-ticket{background:var(--green);color:#000}.concert-actions .btn-ticket:hover{background:var(--green-light)}.concert-actions .btn-cal{background:var(--bg-elevated);color:var(--text);border:1px solid var(--border)}.concert-actions .btn-cal:hover{background:#2a2a2a}.artist-chip{display:flex;align-items:center;gap:10px;padding:10px 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h3{font-size:1.1rem;color:var(--text);margin-bottom:8px}.spinner{width:24px;height:24px;border:3px solid var(--border);border-top-color:var(--green);border-radius:50%;animation:spin .7s linear infinite}@keyframes spin{to{transform:rotate(360deg)}}.loading-center{display:flex;justify-content:center;align-items:center;padding:48px}.toast{position:fixed;bottom:24px;left:50%;transform:translate(-50%);background:var(--bg-elevated);border:1px solid var(--border);border-radius:var(--radius);padding:12px 20px;font-size:.9rem;font-weight:500;z-index:1000;white-space:nowrap;box-shadow:var(--shadow);animation:slideUp .2s ease}.toast.success{border-color:var(--green);color:var(--green)}.toast.error{border-color:var(--red);color:var(--red)}@keyframes slideUp{0%{opacity:0;transform:translate(-50%) translateY(10px)}to{opacity:1;transform:translate(-50%) translateY(0)}}.section-header{display:flex;align-items:center;justify-content:space-between;margin-bottom:14px}.section-title{font-size:1rem;font-weight:700;text-transform:uppercase;letter-spacing:.05em;color:var(--text-secondary)}.divider{border:none;border-top:1px solid var(--border);margin:20px 0}@media (min-width: 640px){.container{padding:0 24px}.page{padding:32px 0 80px}}