.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;padding:12px 24px;border-radius:var(--radius-sm);font-size:.95rem;font-weight:600;cursor:pointer;border:none;transition:all var(--transition-normal);text-decoration:none;white-space:nowrap;position:relative;overflow:hidden}
.btn::before{content:'';position:absolute;inset:0;background:linear-gradient(135deg,rgba(255,255,255,.1),transparent);opacity:0;transition:opacity var(--transition-fast)}
.btn:hover::before{opacity:1}
.btn--primary{background:var(--gradient-accent);color:#fff;box-shadow:var(--glow-primary)}
.btn--primary:hover{transform:translateY(-2px);box-shadow:0 0 30px rgba(102,126,234,.6)}
.btn--secondary{background:transparent;color:var(--accent-primary);border:1px solid var(--accent-primary)}
.btn--secondary:hover{background:var(--accent-primary);color:#fff}
.btn--ghost{background:transparent;color:var(--text-secondary);border:1px solid var(--glass-border)}
.btn--ghost:hover{background:var(--glass-bg);color:var(--text-primary)}
.btn--success{background:var(--gradient-success);color:#fff;box-shadow:var(--glow-success)}
.btn--danger{background:var(--gradient-danger);color:#fff;box-shadow:var(--glow-danger)}
.btn--sm{padding:8px 16px;font-size:.85rem;border-radius:6px}
.btn--lg{padding:16px 32px;font-size:1.1rem}
.btn--icon{padding:8px;border-radius:50%;width:36px;height:36px}
.btn:active{transform:scale(.97)}
.btn:disabled{opacity:.5;cursor:not-allowed;transform:none}

.card{background:var(--bg-card);border:1px solid var(--glass-border);border-radius:var(--radius);backdrop-filter:var(--glass-blur);-webkit-backdrop-filter:var(--glass-blur);transition:all var(--transition-normal);position:relative;overflow:hidden}
.card::before{content:'';position:absolute;inset:0;background:linear-gradient(135deg,rgba(102,126,234,.05),transparent);opacity:0;transition:opacity var(--transition-normal)}
.card:hover{transform:translateY(-4px);border-color:rgba(102,126,234,.3);box-shadow:var(--shadow-lg),0 0 20px rgba(102,126,234,.1)}
.card:hover::before{opacity:1}

.proxy-card{padding:20px;display:flex;flex-direction:column;gap:12px}
.proxy-card__header{display:flex;justify-content:space-between;align-items:flex-start;gap:12px}
.proxy-card__host{font-size:1.1rem;font-weight:700;color:var(--text-primary);font-family:'SF Mono',Monaco,Consolas,monospace;word-break:break-all}
.proxy-card__status{display:flex;align-items:center;gap:6px;font-size:.8rem;font-weight:600;white-space:nowrap}
.proxy-card__status-dot{width:8px;height:8px;border-radius:50%;flex-shrink:0}
.proxy-card__status-dot--online{background:var(--accent-success);box-shadow:0 0 8px rgba(0,184,148,.5)}
.proxy-card__status-dot--offline{background:var(--accent-danger);box-shadow:0 0 8px rgba(225,112,85,.5)}
.proxy-card__status--online{color:var(--accent-success)}
.proxy-card__status--offline{color:var(--accent-danger)}
.proxy-card__meta{display:flex;gap:16px;font-size:.85rem;color:var(--text-secondary)}
.proxy-card__meta-item{display:flex;align-items:center;gap:4px}
.proxy-card__country{font-size:1.2rem}
.proxy-card__actions{display:flex;gap:8px;margin-top:auto}
.proxy-card__ping{font-weight:600}
.ping-good{color:var(--accent-success)}
.ping-medium{color:var(--accent-warning)}
.ping-bad{color:var(--accent-danger)}

.input{width:100%;padding:12px 16px;background:var(--bg-card);border:1px solid var(--glass-border);border-radius:var(--radius-sm);color:var(--text-primary);font-size:.95rem;transition:all var(--transition-fast);outline:none}
.input:focus{border-color:var(--accent-primary);box-shadow:0 0 0 3px rgba(102,126,234,.15)}
.input::placeholder{color:var(--text-muted)}
.input--error{border-color:var(--accent-danger)}
.input-label{display:block;margin-bottom:6px;font-size:.85rem;font-weight:500;color:var(--text-secondary)}
.input-hint{font-size:.75rem;color:var(--text-muted);margin-top:4px}
.input-error{font-size:.75rem;color:var(--accent-danger);margin-top:4px}
.input-group{margin-bottom:16px}
.input-optional{color:var(--text-muted);font-size:.75rem;font-weight:400}

.modal-overlay{position:fixed;inset:0;background:rgba(0,0,0,.7);backdrop-filter:blur(8px);-webkit-backdrop-filter:blur(8px);display:flex;align-items:center;justify-content:center;z-index:1000;opacity:0;visibility:hidden;transition:all var(--transition-normal);padding:20px}
.modal-overlay.active{opacity:1;visibility:visible}
.modal{background:var(--bg-secondary);border:1px solid var(--glass-border);border-radius:var(--radius-lg);max-width:500px;width:100%;max-height:90vh;overflow-y:auto;transform:scale(.9) translateY(20px);transition:transform var(--transition-normal);position:relative}
.modal-overlay.active .modal{transform:scale(1) translateY(0)}
.modal__header{display:flex;justify-content:space-between;align-items:center;padding:20px 24px;border-bottom:1px solid var(--glass-border)}
.modal__title{font-size:1.1rem;font-weight:700}
.modal__close{background:none;border:none;color:var(--text-secondary);cursor:pointer;padding:4px;font-size:1.5rem;line-height:1;transition:color var(--transition-fast)}
.modal__close:hover{color:var(--text-primary)}
.modal__body{padding:24px}
.modal__footer{padding:16px 24px;border-top:1px solid var(--glass-border);display:flex;gap:8px;justify-content:flex-end}

.toast{position:fixed;bottom:24px;right:24px;background:var(--bg-secondary);border:1px solid var(--glass-border);border-radius:var(--radius-sm);padding:12px 20px;color:var(--text-primary);font-size:.9rem;z-index:2000;transform:translateY(100px);opacity:0;transition:all var(--transition-normal);display:flex;align-items:center;gap:8px;box-shadow:var(--shadow-lg)}
.toast.show{transform:translateY(0);opacity:1}
.toast--success{border-color:var(--accent-success)}
.toast--error{border-color:var(--accent-danger)}

.badge{display:inline-flex;align-items:center;gap:4px;padding:4px 10px;border-radius:20px;font-size:.75rem;font-weight:600}
.badge--online{background:rgba(0,184,148,.15);color:var(--accent-success)}
.badge--offline{background:rgba(225,112,85,.15);color:var(--accent-danger)}

.empty-state{text-align:center;padding:60px 20px}
.empty-state__icon{font-size:4rem;margin-bottom:16px;opacity:.3}
.empty-state__title{font-size:1.2rem;font-weight:600;margin-bottom:8px;color:var(--text-primary)}
.empty-state__desc{color:var(--text-secondary);max-width:400px;margin:0 auto}

.skeleton{background:linear-gradient(90deg,var(--bg-card) 25%,var(--bg-card-hover) 50%,var(--bg-card) 75%);background-size:200% 100%;animation:skeleton 1.5s infinite;border-radius:var(--radius-sm)}
@keyframes skeleton{0%{background-position:200% 0}100%{background-position:-200% 0}}

.copy-field{display:flex;align-items:center;gap:8px;margin-bottom:12px}
.copy-field__value{flex:1;padding:10px 14px;background:var(--bg-card);border:1px solid var(--glass-border);border-radius:var(--radius-sm);font-family:'SF Mono',Monaco,Consolas,monospace;font-size:.85rem;color:var(--text-primary);word-break:break-all;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.copy-field__btn{background:var(--accent-primary);color:#fff;border:none;padding:8px 12px;border-radius:6px;cursor:pointer;font-size:.8rem;font-weight:600;transition:all var(--transition-fast);white-space:nowrap}
.copy-field__btn:hover{background:var(--accent-secondary)}

.instruction-steps{display:flex;flex-direction:column;gap:12px;margin-top:16px;padding:16px;background:var(--bg-card);border-radius:var(--radius-sm);border:1px solid var(--glass-border)}
.instruction-step{display:flex;gap:12px;align-items:flex-start}
.instruction-step__num{width:28px;height:28px;border-radius:50%;background:var(--gradient-accent);color:#fff;display:flex;align-items:center;justify-content:center;font-size:.8rem;font-weight:700;flex-shrink:0}
.instruction-step__text{font-size:.9rem;color:var(--text-secondary);line-height:1.5}

.section{padding:80px 0}
.section__header{text-align:center;margin-bottom:48px}
.section__title{margin-bottom:12px}
.section__desc{max-width:600px;margin:0 auto;font-size:1.05rem}

.grid{display:grid;gap:20px}
.grid--2{grid-template-columns:repeat(2,1fr)}
.grid--3{grid-template-columns:repeat(3,1fr)}
.grid--4{grid-template-columns:repeat(4,1fr)}

.flex{display:flex}
.flex-center{display:flex;align-items:center;justify-content:center}
.flex-between{display:flex;align-items:center;justify-content:space-between}
.flex-wrap{flex-wrap:wrap}
.gap-sm{gap:8px}
.gap-md{gap:16px}
.gap-lg{gap:24px}

.text-center{text-align:center}
.text-gradient{background:var(--gradient-accent);-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text}
.text-muted{color:var(--text-muted)}
.text-sm{font-size:.85rem}
.text-lg{font-size:1.1rem}
.mt-1{margin-top:8px}
.mt-2{margin-top:16px}
.mt-3{margin-top:24px}
.mt-4{margin-top:32px}
.mb-2{margin-bottom:16px}
.mb-4{margin-bottom:32px}

.divider{height:1px;background:var(--glass-border);margin:24px 0}

.tag{display:inline-block;padding:2px 8px;border-radius:4px;font-size:.7rem;font-weight:600;text-transform:uppercase;letter-spacing:.5px}
.tag--online{background:rgba(0,184,148,.15);color:var(--accent-success)}
.tag--offline{background:rgba(225,112,85,.15);color:var(--accent-danger)}