/* AnyLinker Design System v5 — Linear + Vercel */
:root {
--bg:#fafafa;--bg-card:#fff;--bg-hover:#f5f5f5;--bg-secondary:#f4f4f5;
--border:#e4e4e7;--border-light:#f0f0f0;
--text:#18181b;--text-2:#71717a;--text-3:#a1a1aa;
--accent:#0066ff;--accent-hover:#0052cc;--accent-light:#eff4ff;
--green:#22c55e;--green-light:#f0fdf4;--red:#ef4444;--red-light:#fef2f2;
--orange:#f59e0b;--orange-light:#fffbeb;
--blue:#3b82f6;--blue-light:#eff6ff;
--radius:10px;--radius-sm:6px;--radius-lg:14px;
--sidebar-w:220px;--topbar-h:52px;
--ease:180ms cubic-bezier(0.4,0,0.2,1);--spring:320ms cubic-bezier(0.34,1.56,0.64,1);
--shadow-xs:0 1px 2px rgba(0,0,0,0.04);--shadow-sm:0 2px 4px rgba(0,0,0,0.04),0 1px 2px rgba(0,0,0,0.06);
--shadow-md:0 4px 8px rgba(0,0,0,0.06),0 2px 4px rgba(0,0,0,0.04);
--shadow-lg:0 12px 24px rgba(0,0,0,0.08),0 4px 8px rgba(0,0,0,0.04);
--shadow-xl:0 20px 40px rgba(0,0,0,0.1),0 8px 16px rgba(0,0,0,0.06);
}
*,*::before,*::after{box-sizing:border-box;margin:0;padding:0;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{font-family:-apple-system,BlinkMacSystemFont,'Inter','Segoe UI',Roboto,'Helvetica Neue',Arial,sans-serif;font-size:14px;line-height:1.5;color:var(--text);background:var(--bg);-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale;}
a{color:inherit;text-decoration:none;}
button{font-family:inherit;cursor:pointer;border:none;background:none;color:inherit;-webkit-tap-highlight-color:transparent;}
input{font-family:inherit;font-size:inherit;color:inherit;}
svg{display:block;}
code{font-family:'SF Mono',SFMono-Regular,Menlo,Monaco,Consolas,monospace;}
.logo{display:inline-flex;align-items:center;gap:8px;font-size:15px;font-weight:700;color:var(--text);letter-spacing:-0.02em;}
.logo--sm{font-size:14px;}
.btn{display:inline-flex;align-items:center;justify-content:center;gap:6px;padding:8px 16px;font-size:13px;font-weight:600;border-radius:var(--radius-sm);transition:all var(--ease);white-space:nowrap;border:1px solid transparent;}
.btn:active{transform:scale(0.97);}
.btn--primary{background:var(--text);color:#fff;}
.btn--primary:hover{background:#27272a;}
.btn--ghost{background:transparent;color:var(--text-2);border-color:var(--border);}
.btn--ghost:hover{background:var(--bg-hover);color:var(--text);}
.btn--danger{background:var(--red);color:#fff;}
.btn--danger:hover{background:#dc2626;}
.btn--sm{padding:6px 12px;font-size:12px;}
.btn--lg{padding:11px 22px;font-size:14px;border-radius:var(--radius);}
.btn--block{width:100%;}
.icon-btn{width:30px;height:30px;border-radius:var(--radius-sm);display:flex;align-items:center;justify-content:center;color:var(--text-3);transition:all var(--ease);}
.icon-btn:hover{background:var(--bg-hover);color:var(--text);}
.field{margin-bottom:16px;}
.field__label{display:block;margin-bottom:6px;font-size:12px;font-weight:600;color:var(--text-2);}
.field__input{width:100%;height:42px;padding:0 14px;font-size:14px;color:var(--text);background:var(--bg-secondary);border:1px solid var(--border-light);border-radius:var(--radius-sm);transition:all var(--ease);outline:none;}
.field__input:focus{border-color:var(--accent);background:#fff;box-shadow:0 0 0 3px rgba(0,102,255,0.08);}
.field__input::placeholder{color:var(--text-3);}
.alert{padding:10px 14px;border-radius:var(--radius-sm);font-size:13px;font-weight:500;margin-bottom:16px;}
.alert--error{background:var(--red-light);color:var(--red);border:1px solid rgba(239,68,68,0.15);}
.dot{display:inline-block;width:7px;height:7px;border-radius:50%;}
.dot--green{background:var(--green);}
.pill{display:inline-flex;align-items:center;gap:6px;padding:3px 10px;border-radius:999px;font-size:12px;font-weight:600;}
.pill__dot{width:6px;height:6px;border-radius:50%;}
.pill--online{background:var(--green-light);color:#15803d;}
.pill--online .pill__dot{background:var(--green);}
.pill--offline{background:var(--bg-secondary);color:var(--text-2);}
.pill--offline .pill__dot{background:var(--text-3);}
.pill--gray{background:var(--bg-secondary);color:var(--text-2);}
.landing{min-height:100vh;background:var(--bg);}
.landing-nav{position:sticky;top:0;z-index:50;background:rgba(250,250,250,0.8);backdrop-filter:saturate(180%) blur(20px);-webkit-backdrop-filter:saturate(180%) blur(20px);border-bottom:1px solid var(--border-light);}
.landing-nav__inner{max-width:1080px;margin:0 auto;padding:0 28px;height:56px;display:flex;align-items:center;justify-content:space-between;}
.hero{padding:96px 28px 120px;text-align:center;}
.hero__inner{max-width:640px;margin:0 auto;}
.hero__badge{display:inline-flex;align-items:center;gap:8px;padding:5px 12px;background:var(--bg-card);border:1px solid var(--border);border-radius:999px;font-size:12px;font-weight:600;color:var(--text-2);margin-bottom:28px;}
.hero__title{font-size:44px;font-weight:800;line-height:1.12;letter-spacing:-0.03em;color:var(--text);margin-bottom:18px;}
.hero__desc{font-size:17px;color:var(--text-2);line-height:1.6;margin-bottom:36px;}
.hero__actions{display:flex;gap:10px;justify-content:center;flex-wrap:wrap;}
.features{padding:80px 28px;background:#fff;border-top:1px solid var(--border-light);border-bottom:1px solid var(--border-light);}
.features__inner{max-width:1080px;margin:0 auto;}
.section-title{font-size:28px;font-weight:800;text-align:center;letter-spacing:-0.02em;margin-bottom:6px;}
.section-desc{font-size:15px;color:var(--text-2);text-align:center;margin-bottom:48px;}
.features__grid{display:grid;grid-template-columns:repeat(4,1fr);gap:20px;}
.feature{padding:28px 24px;background:var(--bg);border:1px solid var(--border-light);border-radius:var(--radius);transition:all var(--ease);}
.feature:hover{box-shadow:var(--shadow-sm);transform:translateY(-2px);}
.feature__icon{width:40px;height:40px;border-radius:var(--radius-sm);display:flex;align-items:center;justify-content:center;margin-bottom:16px;background:var(--bg-secondary);color:var(--text);}
.feature__title{font-size:15px;font-weight:700;margin-bottom:6px;letter-spacing:-0.01em;}
.feature__text{font-size:13px;color:var(--text-2);line-height:1.5;}
.landing-footer{padding:28px;background:#fff;border-top:1px solid var(--border-light);}
.landing-footer__inner{max-width:1080px;margin:0 auto;display:flex;align-items:center;justify-content:space-between;flex-wrap:wrap;gap:10px;}
.landing-footer__text{font-size:12px;color:var(--text-3);max-width:600px;}
.overlay{position:fixed;inset:0;z-index:200;background:rgba(0,0,0,0.25);backdrop-filter:blur(6px);-webkit-backdrop-filter:blur(6px);display:flex;align-items:center;justify-content:center;padding:24px;animation:fade 200ms ease;}
@keyframes fade{from{opacity:0;}to{opacity:1;}}
.auth-card{width:100%;max-width:380px;background:#fff;border:1px solid var(--border);border-radius:var(--radius-lg);box-shadow:var(--shadow-xl);overflow:hidden;animation:pop var(--spring);}
@keyframes pop{from{opacity:0;transform:translateY(16px) scale(0.96);}to{opacity:1;transform:translateY(0) scale(1);}}
.auth-card__header{display:flex;align-items:center;justify-content:space-between;padding:14px 18px;border-bottom:1px solid var(--border-light);}
.auth-card__body{padding:28px 24px 24px;}
.auth-card__title{font-size:20px;font-weight:800;letter-spacing:-0.02em;margin-bottom:4px;}
.auth-card__subtitle{font-size:14px;color:var(--text-2);margin-bottom:24px;}
.app{display:flex;min-height:100vh;}
.sidebar{width:var(--sidebar-w);flex-shrink:0;background:#fff;border-right:1px solid var(--border-light);display:flex;flex-direction:column;position:fixed;top:0;bottom:0;left:0;z-index:100;transition:transform var(--ease);}
.sidebar__head{height:var(--topbar-h);display:flex;align-items:center;justify-content:space-between;padding:0 16px;border-bottom:1px solid var(--border-light);}
.sidebar__close{display:none;}
.sidebar__nav{flex:1;padding:12px 10px;overflow-y:auto;}
.sidebar__foot{padding:10px;border-top:1px solid var(--border-light);}
.nav-item{display:flex;align-items:center;gap:10px;padding:8px 12px;border-radius:var(--radius-sm);font-size:13px;font-weight:600;color:var(--text-2);transition:all var(--ease);cursor:pointer;margin-bottom:2px;width:100%;}
.nav-item:hover{background:var(--bg-hover);color:var(--text);}
.nav-item:active{transform:scale(0.97);}
.nav-item.active{background:var(--bg-secondary);color:var(--text);}
.nav-item svg{flex-shrink:0;}
.sidebar-overlay{display:none;position:fixed;inset:0;background:rgba(0,0,0,0.2);z-index:99;}
.main{flex:1;margin-left:var(--sidebar-w);display:flex;flex-direction:column;min-height:100vh;}
.topbar{height:var(--topbar-h);background:rgba(255,255,255,0.72);backdrop-filter:saturate(180%) blur(20px);-webkit-backdrop-filter:saturate(180%) blur(20px);border-bottom:1px solid var(--border-light);display:flex;align-items:center;justify-content:space-between;padding:0 24px;position:sticky;top:0;z-index:50;}
.topbar__menu{display:none;}
.topbar__title{font-size:15px;font-weight:700;letter-spacing:-0.01em;}
.topbar__right{display:flex;align-items:center;gap:12px;}
.topbar__user{font-size:13px;font-weight:600;color:var(--text-2);}
.avatar{width:28px;height:28px;border-radius:50%;background:var(--text);color:#fff;font-size:12px;font-weight:700;display:flex;align-items:center;justify-content:center;}
.content{flex:1;padding:32px;max-width:960px;}
.page-content{display:none;}
.page-content.active{display:block;animation:pagein 300ms var(--ease);}
@keyframes pagein{from{opacity:0;transform:translateY(6px);}to{opacity:1;transform:translateY(0);}}
.big-stats{display:flex;gap:48px;margin-bottom:32px;flex-wrap:wrap;}
.big-stats--compact{margin-bottom:24px;}
.big-stat{}
.big-stat__num{font-size:36px;font-weight:800;letter-spacing:-0.03em;color:var(--text);line-height:1;margin-bottom:4px;}
.big-stat__num--green{color:var(--green);}
.big-stat__num--red{color:var(--red);}
.big-stat__label{font-size:12px;font-weight:600;color:var(--text-3);text-transform:uppercase;letter-spacing:0.05em;}
.panel{background:#fff;border:1px solid var(--border-light);border-radius:var(--radius);overflow:hidden;margin-bottom:20px;}
.panel__head{display:flex;align-items:center;justify-content:space-between;padding:14px 18px;border-bottom:1px solid var(--border-light);}
.panel__title{font-size:14px;font-weight:700;}
.panel__head-right{display:flex;align-items:center;gap:12px;}
.device-list{}
.device-row{display:flex;align-items:center;gap:16px;padding:14px 18px;border-bottom:1px solid var(--border-light);transition:background var(--ease);}
.device-row:last-child{border-bottom:none;}
.device-row:hover{background:var(--bg);}
.device-row__main{flex:1;min-width:0;}
.device-row__name{font-size:14px;font-weight:600;color:var(--text);margin-bottom:2px;}
.device-row__meta{display:flex;align-items:center;gap:8px;font-size:12px;color:var(--text-3);flex-wrap:wrap;}
.device-row__ip{font-family:'SF Mono',SFMono-Regular,Menlo,Monaco,Consolas,monospace;}
.device-row__sep{color:var(--text-3);}
.device-row__status{flex-shrink:0;}
.device-row__proxy{flex-shrink:0;display:flex;align-items:center;gap:8px;margin-right:12px;}
.proxy-toggle{display:inline-flex;align-items:center;gap:4px;padding:4px 10px;border-radius:999px;font-size:12px;font-weight:500;border:1px solid var(--border);color:var(--text-3);background:transparent;cursor:pointer;transition:all var(--ease);white-space:nowrap;}
.proxy-toggle:hover{border-color:var(--accent);color:var(--accent);}
.proxy-toggle--on{color:var(--green);border-color:rgba(52,199,89,.35);background:rgba(52,199,89,.08);}
.proxy-toggle--on:hover{color:var(--green);border-color:var(--green);}
.proxy-node-select{font-size:12px;padding:4px 8px;border-radius:var(--radius-sm);border:1px solid var(--border);background:var(--bg);color:var(--text-2);cursor:pointer;outline:none;}
.proxy-node-select:focus{border-color:var(--accent);}
.proxy-node-btn{display:inline-flex;align-items:center;gap:4px;padding:4px 10px;border-radius:var(--radius-sm);border:1px solid var(--border);background:var(--bg);color:var(--text-2);font-size:12px;cursor:pointer;transition:all var(--ease);white-space:nowrap;max-width:180px;overflow:hidden;text-overflow:ellipsis;}
.proxy-node-btn:hover{border-color:var(--accent);color:var(--accent);}
.node-picker-item{display:flex;align-items:center;justify-content:space-between;padding:10px 14px;border-bottom:1px solid var(--border-light);cursor:pointer;transition:background var(--ease);}
.node-picker-item:hover{background:var(--bg-hover);}
.node-picker-item__name{font-size:13px;color:var(--text);}
.node-picker-item__country{font-size:12px;color:var(--text-3);}
.proxy-group-head{display:flex;align-items:center;justify-content:space-between;padding:10px 18px 6px;font-size:12px;font-weight:600;color:var(--text-2);}
.device-row__traffic{flex-shrink:0;font-size:12px;color:var(--text-2);white-space:nowrap;display:flex;align-items:center;gap:4px;font-variant-numeric:tabular-nums;}
.traffic-arrow{font-size:11px;}
.traffic-arrow--down{color:var(--accent);}
.traffic-arrow--up{color:var(--green);}
.device-row__actions{display:flex;align-items:center;gap:2px;flex-shrink:0;}
.ghost-btn{display:flex;align-items:center;justify-content:center;width:30px;height:30px;border-radius:var(--radius-sm);color:var(--text-3);transition:all var(--ease);}
.ghost-btn:hover{background:var(--bg-hover);color:var(--text);}
.ghost-btn:active{transform:scale(0.9);}
.ghost-btn--danger:hover{background:var(--red-light);color:var(--red);}
.sys-list{padding:8px 0;}
.sys-row{display:flex;align-items:center;justify-content:space-between;padding:14px 18px;border-bottom:1px solid var(--border-light);gap:16px;}
.sys-row:last-child{border-bottom:none;}
.sys-row__label{font-size:14px;font-weight:600;color:var(--text);}
.sys-row__value{font-size:14px;font-weight:600;color:var(--text-2);font-variant-numeric:tabular-nums;}
.sys-row__info{flex:1;min-width:0;}
.sys-row__detail{font-size:12px;color:var(--text-3);margin-top:2px;}

/* ── v5: Progress bar ── */
.progress-bar{flex-shrink:0;width:200px;height:8px;background:var(--bg-secondary);border-radius:999px;overflow:hidden;}
.progress-bar__fill{height:100%;background:var(--green);border-radius:999px;transition:width 400ms var(--ease);}
.progress-bar__fill--blue{background:var(--blue);}
.progress-bar__fill--orange{background:var(--orange);}

/* ── v5: Search box ── */
.search-box{display:flex;align-items:center;gap:6px;padding:6px 12px;background:var(--bg-secondary);border:1px solid var(--border-light);border-radius:var(--radius-sm);color:var(--text-3);transition:all var(--ease);}
.search-box:focus-within{border-color:var(--accent);background:#fff;box-shadow:0 0 0 3px rgba(0,102,255,0.08);}
.search-box__input{border:none;background:transparent;outline:none;font-size:13px;color:var(--text);width:160px;}

/* ── v5: Download center card grid ── */
.dl-grid{display:grid;grid-template-columns:repeat(5,1fr);gap:16px;padding:18px;}
.dl-card{display:flex;flex-direction:column;align-items:center;gap:10px;padding:28px 16px 24px;background:var(--bg);border:1px solid var(--border-light);border-radius:var(--radius);transition:all var(--ease);cursor:pointer;position:relative;text-decoration:none;color:var(--text);}
.dl-card:hover{border-color:var(--border);box-shadow:var(--shadow-sm);transform:translateY(-2px);}
.dl-card__icon{width:48px;height:48px;display:flex;align-items:center;justify-content:center;color:var(--text-2);}
.dl-card__name{font-size:14px;font-weight:700;color:var(--text);}
.dl-card__meta{font-size:12px;color:var(--text-3);}
.dl-card__qr{position:absolute;top:50%;left:50%;transform:translate(-50%,-50%);background:#fff;border:1px solid var(--border);border-radius:var(--radius);box-shadow:var(--shadow-lg);padding:10px 10px 6px;z-index:10;}
.dl-card__qr img{display:block;border-radius:4px;}
.dl-card__qr-hint{text-align:center;font-size:11px;color:var(--text-3);margin-top:4px;}

/* ── v5: Overview server summary ── */
.ov-server-summary{margin-bottom:20px;}

/* ── v5: Empty state ── */
.empty-state{padding:48px 24px;text-align:center;color:var(--text-3);font-size:14px;}

.settings{padding:4px 0;}
.settings__row{display:flex;align-items:center;justify-content:space-between;padding:14px 18px;border-bottom:1px solid var(--border-light);}
.settings__row:last-child{border-bottom:none;}
.settings__label{font-size:14px;font-weight:600;margin-bottom:2px;}
.settings__desc{font-size:12px;color:var(--text-2);}
.page-note{font-size:12px;color:var(--text-3);margin-top:16px;}
.modal{display:none;position:fixed;inset:0;z-index:200;align-items:center;justify-content:center;padding:24px;}
.modal.show{display:flex;animation:fade 200ms ease;}
.modal__bg{position:absolute;inset:0;background:rgba(0,0,0,0.25);backdrop-filter:blur(6px);-webkit-backdrop-filter:blur(6px);}
.modal__card{position:relative;width:100%;max-width:400px;background:#fff;border:1px solid var(--border);border-radius:var(--radius-lg);box-shadow:var(--shadow-xl);overflow:hidden;animation:pop var(--spring);}
.modal__head{display:flex;align-items:center;justify-content:space-between;padding:14px 18px;border-bottom:1px solid var(--border-light);}
.modal__title{font-size:15px;font-weight:700;}
.modal__body{padding:24px 20px 20px;}
.modal__hint{text-align:center;font-size:12px;color:var(--text-3);margin-top:12px;}
#addNodeModal .modal__card{max-height:calc(100vh - 48px);}
#addNodeModal .modal__body{max-height:calc(100vh - 109px);overflow-y:auto;}
.parsed-node-summary{font-size:13px;color:var(--text-2);margin-bottom:8px;}
.parsed-node-list{max-height:min(45vh,420px);overflow-y:auto;border:1px solid var(--border-light);border-radius:var(--radius);}
.parsed-node-actions{display:flex;justify-content:flex-end;padding-top:10px;background:#fff;}
.qr-img{display:block;margin:0 auto;width:220px;height:220px;border-radius:var(--radius-sm);}
.toast{position:fixed;bottom:28px;left:50%;transform:translateX(-50%) translateY(100px);background:var(--text);color:#fff;padding:12px 24px;border-radius:var(--radius-sm);font-size:13px;font-weight:600;box-shadow:var(--shadow-lg);z-index:300;opacity:0;transition:all var(--spring);pointer-events:none;}
.toast--show{transform:translateX(-50%) translateY(0);opacity:1;}
.toast--success{background:var(--green);}
.toast--error{background:var(--red);}
@media(max-width:1024px){.features__grid{grid-template-columns:repeat(2,1fr);}.dl-grid{grid-template-columns:repeat(3,1fr);}}
@media(max-width:768px){
.sidebar{transform:translateX(-100%);}
.sidebar.open{transform:translateX(0);}
.sidebar__close{display:flex;}
.sidebar-overlay.show{display:block;}
.main{margin-left:0;}
.topbar__menu{display:flex;}
.big-stats{gap:32px;}
.features__grid{grid-template-columns:1fr;}
.dl-grid{grid-template-columns:repeat(2,1fr);}
.hero__title{font-size:32px;}
.hero{padding:56px 20px 72px;}
.features{padding:56px 20px;}
.content{padding:20px;}
.device-row{flex-wrap:wrap;gap:10px;}
.device-row__actions{width:100%;justify-content:flex-end;}
.progress-bar{width:100%;}
.search-box__input{width:120px;}
}
@media(max-width:480px){
.hero__title{font-size:28px;}
.hero__actions{flex-direction:column;}
.hero__actions .btn{width:100%;}
.big-stat__num{font-size:28px;}
.dl-grid{grid-template-columns:1fr;}
}
@media(prefers-reduced-motion:reduce){*,*::before,*::after{animation-duration:0.01ms!important;transition-duration:0.01ms!important;}}