/* ======================================================
   SSH Manager — Professional Network Theme
   ====================================================== */

:root{
  --bg:#0a0e17;
  --bg-elev:#0f1520;
  --bg-elev-2:#131a28;
  --card:#111827cc;
  --card-solid:#111827;
  --border:#22304a;
  --border-soft:#1a2438;
  --text:#e6ecf5;
  --text-dim:#8b9bb4;
  --text-faint:#57678a;
  --accent:#38e8c6;
  --accent-2:#5b8cff;
  --accent-soft:#38e8c61a;
  --danger:#ff5c72;
  --warn:#ffb454;
  --ok:#38e8c6;
  --shadow: 0 10px 40px -12px #000a;
  --radius:14px;
  --radius-sm:9px;
  --font-fa:'Vazirmatn', 'IRANSans', Tahoma, sans-serif;
  --font-mono:'JetBrains Mono','Fira Code',ui-monospace,Consolas,monospace;
  --fw-normal:400; --fw-medium:500; --fw-bold:700; --fw-black:800;
  color-scheme: dark;
}

html[data-theme="light"]{
  --bg:#f3f6fb;
  --bg-elev:#ffffff;
  --bg-elev-2:#eef2f9;
  --card:#ffffffdd;
  --card-solid:#ffffff;
  --border:#dbe3f0;
  --border-soft:#e6ecf5;
  --text:#101827;
  --text-dim:#5b6b85;
  --text-faint:#93a1b8;
  --accent:#0d9f88;
  --accent-2:#3568e8;
  --accent-soft:#0d9f8814;
  --shadow: 0 10px 30px -14px #33415522;
  color-scheme: light;
}

*{box-sizing:border-box; margin:0; padding:0;}
html,body{height:100%;}
body{
  font-family:var(--font-fa);
  font-optical-sizing:auto;
  font-feature-settings:"ss01" 1, "cv05" 1;
  background:var(--bg);
  color:var(--text);
  direction:rtl;
  overflow-x:hidden;
  transition:background .5s ease, color .5s ease;
  min-height:100vh;
  -webkit-font-smoothing:antialiased;
}
h1,h2,h3,.brand,.btn,.step .label,.server-card h3{ font-family:var(--font-fa); }

/* install-app button */
.install-btn{ display:none; align-items:center; gap:7px; }
.install-btn svg{ width:16px; height:16px; }

::selection{ background:var(--accent); color:#04120f; }

/* scrollbar */
::-webkit-scrollbar{width:10px; height:10px;}
::-webkit-scrollbar-track{background:transparent;}
::-webkit-scrollbar-thumb{background:var(--border); border-radius:10px;}
::-webkit-scrollbar-thumb:hover{background:var(--accent-2);}

/* network canvas background */
#net-bg{
  position:fixed; inset:0; width:100%; height:100%;
  z-index:0; pointer-events:none; opacity:.55;
}
html[data-theme="light"] #net-bg{ opacity:.28; }

.app{
  position:relative; z-index:1;
  min-height:100vh;
  display:flex; flex-direction:column;
}

/* ---------- Topbar ---------- */
.topbar{
  display:flex; align-items:center; justify-content:space-between;
  padding:14px 22px;
  padding-top:calc(14px + env(safe-area-inset-top));
  padding-left:calc(22px + env(safe-area-inset-left));
  padding-right:calc(22px + env(safe-area-inset-right));
  background:linear-gradient(180deg, var(--bg-elev), transparent);
  border-bottom:1px solid var(--border-soft);
  position:sticky; top:0; z-index:50;
  backdrop-filter:blur(10px);
}
.brand{ display:flex; align-items:center; gap:10px; font-weight:700; font-size:18px; }
.brand .logo{
  width:36px; height:36px; border-radius:10px;
  display:flex; align-items:center; justify-content:center;
  background:linear-gradient(135deg, var(--accent), var(--accent-2));
  box-shadow:0 4px 18px -4px var(--accent-soft);
}
.brand .logo svg{ width:20px; height:20px; stroke:#04140f; }
.brand small{ display:block; font-weight:400; color:var(--text-dim); font-size:11px; }

.topbar-actions{ display:flex; align-items:center; gap:10px; }

/* theme toggle button */
.theme-btn{
  position:relative;
  width:44px; height:44px;
  border-radius:50%;
  border:1px solid var(--border);
  background:var(--bg-elev-2);
  cursor:pointer;
  display:flex; align-items:center; justify-content:center;
  overflow:hidden;
  transition:border-color .3s, transform .2s;
}
.theme-btn:hover{ border-color:var(--accent); transform:translateY(-1px); }
.theme-btn:active{ transform:scale(.92); }
.theme-btn svg{
  width:20px; height:20px;
  stroke:var(--text);
  transition:transform .5s cubic-bezier(.4,0,.2,1), opacity .3s;
  position:absolute;
}
.theme-btn .i-sun{ opacity:0; transform:rotate(-90deg) scale(.5); }
.theme-btn .i-moon{ opacity:1; transform:rotate(0) scale(1); }
html[data-theme="light"] .theme-btn .i-sun{ opacity:1; transform:rotate(0) scale(1); }
html[data-theme="light"] .theme-btn .i-moon{ opacity:0; transform:rotate(90deg) scale(.5); }

/* view-transition ripple fallback circle */
.theme-ripple{
  position:fixed; border-radius:50%; pointer-events:none;
  z-index:9999; background:var(--bg); mix-blend-mode:normal;
  transform:scale(0); opacity:1;
}

::view-transition-old(root){ animation: fade-out .4s ease forwards; }
::view-transition-new(root){ animation: reveal-circle .6s cubic-bezier(.4,0,.2,1) forwards; }
@keyframes fade-out{ to{ opacity:1; } }
@keyframes reveal-circle{
  from{ clip-path:circle(0% at var(--tx,50%) var(--ty,50%)); }
  to{ clip-path:circle(150% at var(--tx,50%) var(--ty,50%)); }
}

/* ---------- Layout / container ---------- */
.container{ max-width:1180px; margin:0 auto; padding:28px 20px 60px; width:100%; flex:1; }

.page-head{ display:flex; align-items:flex-end; justify-content:space-between; flex-wrap:wrap; gap:14px; margin-bottom:22px; }
.page-head h1{ font-size:22px; font-weight:800; }
.page-head p{ color:var(--text-dim); font-size:13px; margin-top:4px; }

.btn{
  display:inline-flex; align-items:center; gap:8px;
  padding:11px 18px; border-radius:10px; border:1px solid var(--border);
  background:var(--bg-elev-2); color:var(--text); cursor:pointer;
  font-family:inherit; font-size:14px; font-weight:600;
  transition:all .2s ease;
}
.btn:hover{ border-color:var(--accent); transform:translateY(-1px); }
.btn:active{ transform:translateY(0) scale(.98); }
.btn svg{ width:16px; height:16px; }
.btn-primary{
  background:linear-gradient(135deg, var(--accent), var(--accent-2));
  color:#04140f; border:none; box-shadow:0 8px 22px -8px var(--accent-soft);
}
.btn-primary:hover{ filter:brightness(1.07); }
.btn-danger{ color:var(--danger); }
.btn-danger:hover{ border-color:var(--danger); }
.btn-ghost{ background:transparent; }
.btn-sm{ padding:7px 12px; font-size:12.5px; border-radius:8px; }
.btn-icon{ padding:9px; border-radius:9px; }

/* ---------- Server grid ---------- */
.server-grid{
  display:grid; grid-template-columns:repeat(auto-fill,minmax(280px,1fr));
  gap:16px;
}
.server-card{
  background:var(--card); border:1px solid var(--border-soft); border-radius:var(--radius);
  padding:18px; position:relative; backdrop-filter:blur(6px);
  transition:transform .25s ease, border-color .25s ease, box-shadow .25s ease;
  animation: card-in .4s ease backwards;
}
@keyframes card-in{ from{ opacity:0; transform:translateY(10px);} to{ opacity:1; transform:translateY(0);} }
.server-card:hover{ transform:translateY(-3px); border-color:var(--accent); box-shadow:var(--shadow); }
.server-card .status-dot{
  position:absolute; top:18px; left:18px; width:8px; height:8px; border-radius:50%;
  background:var(--text-faint);
}
.server-card .status-dot.online{ background:var(--ok); box-shadow:0 0 0 4px var(--accent-soft); animation:pulse 2s infinite; }
@keyframes pulse{ 0%{box-shadow:0 0 0 0 var(--accent-soft);} 70%{box-shadow:0 0 0 8px transparent;} 100%{box-shadow:0 0 0 0 transparent;} }

.server-card h3{ font-size:16px; font-weight:700; margin-bottom:2px; padding-left:18px; }
.server-card .host{ font-family:var(--font-mono); font-size:12.5px; color:var(--accent); direction:ltr; text-align:right; display:block; margin-bottom:10px; }
.server-card .meta{ display:flex; gap:14px; font-size:12px; color:var(--text-dim); margin-bottom:14px; flex-wrap:wrap; }
.server-card .meta span{ display:flex; align-items:center; gap:5px; }
.server-card .meta svg{ width:13px; height:13px; }
.server-card .card-actions{ display:flex; gap:8px; }
.server-card .card-actions .btn{ flex:1; justify-content:center; }

.empty-state{
  grid-column:1/-1; text-align:center; padding:60px 20px; color:var(--text-dim);
  border:1.5px dashed var(--border); border-radius:var(--radius);
}
.empty-state svg{ width:44px; height:44px; margin-bottom:14px; opacity:.5; }

/* ---------- Modal ---------- */
.overlay{
  position:fixed; inset:0; background:#000a; backdrop-filter:blur(4px);
  display:flex; align-items:center; justify-content:center; z-index:200;
  opacity:0; pointer-events:none; transition:opacity .25s ease;
  padding:16px;
}
.overlay.open{ opacity:1; pointer-events:auto; }
.modal{
  background:var(--card-solid); border:1px solid var(--border); border-radius:16px;
  width:100%; max-width:460px; padding:24px; max-height:90vh; overflow:auto;
  transform:translateY(14px) scale(.97); opacity:0; transition:all .28s cubic-bezier(.4,0,.2,1);
  box-shadow:var(--shadow);
}
.overlay.open .modal{ transform:translateY(0) scale(1); opacity:1; }
.modal h2{ font-size:17px; margin-bottom:18px; display:flex; align-items:center; gap:8px; }
.field{ margin-bottom:14px; }
.field label{ display:block; font-size:12.5px; color:var(--text-dim); margin-bottom:6px; }
.field input, .field select, .field textarea{
  width:100%; padding:10px 12px; border-radius:9px; border:1px solid var(--border);
  background:var(--bg-elev-2); color:var(--text); font-family:var(--font-mono); font-size:13.5px;
  direction:ltr; text-align:left;
}
.field input:focus, .field textarea:focus, .field select:focus{ outline:none; border-color:var(--accent); }
.field.fa input{ font-family:var(--font-fa); direction:rtl; text-align:right; }
.field textarea{ min-height:90px; resize:vertical; }
.row2{ display:grid; grid-template-columns:1fr 100px; gap:10px; }
.auth-tabs{ display:flex; gap:6px; margin-bottom:12px; background:var(--bg-elev-2); padding:4px; border-radius:9px; }
.auth-tabs button{ flex:1; padding:7px; border:none; background:transparent; color:var(--text-dim); border-radius:7px; cursor:pointer; font-family:inherit; font-size:12.5px; }
.auth-tabs button.active{ background:var(--card-solid); color:var(--accent); font-weight:700; }
.modal-actions{ display:flex; gap:10px; margin-top:20px; }
.modal-actions .btn{ flex:1; justify-content:center; }
.hint{ font-size:11.5px; color:var(--text-faint); margin-top:6px; line-height:1.7; }

/* master passphrase banner */
.security-banner{
  display:flex; align-items:flex-start; gap:10px; background:var(--accent-soft);
  border:1px solid var(--border-soft); padding:12px 14px; border-radius:10px; font-size:12px;
  color:var(--text-dim); margin-bottom:18px; line-height:1.9;
}
.security-banner svg{ width:16px; height:16px; flex-shrink:0; margin-top:2px; stroke:var(--accent); }

/* toast */
.toast-wrap{ position:fixed; bottom:20px; left:50%; transform:translateX(-50%); z-index:400; display:flex; flex-direction:column; gap:8px; }
.toast{
  background:var(--card-solid); border:1px solid var(--border); padding:11px 18px; border-radius:10px;
  font-size:13px; box-shadow:var(--shadow); animation:toast-in .3s ease;
}
@keyframes toast-in{ from{ opacity:0; transform:translateY(10px);} to{opacity:1; transform:translateY(0);} }
.toast.danger{ border-color:var(--danger); color:var(--danger); }
.toast.ok{ border-color:var(--accent); }

/* =====================================================
   Terminal / Connect page
   ===================================================== */
.term-page{ height:100vh; height:100dvh; display:flex; flex-direction:column; }
.term-topbar{
  display:flex; align-items:center; justify-content:space-between; padding:10px 16px;
  padding-top:calc(10px + env(safe-area-inset-top));
  padding-left:calc(16px + env(safe-area-inset-left));
  padding-right:calc(16px + env(safe-area-inset-right));
  background:var(--bg-elev); border-bottom:1px solid var(--border-soft); z-index:20;
}
.term-topbar .server-tag{ display:flex; align-items:center; gap:10px; font-size:13px; }
.term-topbar .server-tag .dot{ width:8px; height:8px; border-radius:50%; background:var(--text-faint); }
.term-topbar .server-tag .dot.connected{ background:var(--ok); box-shadow:0 0 0 4px var(--accent-soft); }
.term-topbar .server-tag .host{ font-family:var(--font-mono); color:var(--text-dim); direction:ltr; }
.term-actions{ display:flex; gap:8px; }

.term-body{ flex:1; position:relative; overflow:hidden; background:#080b12; }
#terminal{ position:absolute; inset:0; padding:10px 14px; }

/* connection progress overlay */
.connect-overlay{
  position:absolute; inset:0; z-index:30; display:flex; align-items:center; justify-content:center;
  background:radial-gradient(circle at 50% 40%, #101a2c 0%, #060a11 75%);
  transition:opacity .5s ease, visibility .5s;
}
.connect-overlay.hide{ opacity:0; visibility:hidden; pointer-events:none; }
.connect-card{ width:100%; max-width:420px; padding:20px; text-align:center; }
.connect-orb{ width:86px; height:86px; margin:0 auto 22px; position:relative; }
.connect-orb svg{ width:100%; height:100%; stroke:var(--accent); }
.connect-orb .ring{
  position:absolute; inset:-10px; border-radius:50%; border:2px solid var(--accent-soft);
  border-top-color:var(--accent); animation:spin 1.4s linear infinite;
}
@keyframes spin{ to{ transform:rotate(360deg); } }
.connect-card h3{ font-size:16px; margin-bottom:4px; }
.connect-card .sub{ font-size:12px; color:var(--text-dim); font-family:var(--font-mono); direction:ltr; margin-bottom:22px; }

.step-list{ text-align:right; display:flex; flex-direction:column; gap:10px; }
.step{
  display:flex; align-items:center; gap:12px; padding:10px 14px; border-radius:10px;
  border:1px solid var(--border-soft); background:var(--bg-elev); opacity:.45;
  transition:all .35s ease;
}
.step.active{ opacity:1; border-color:var(--accent-2); box-shadow:0 0 0 1px var(--accent-2) inset; }
.step.done{ opacity:1; border-color:var(--border-soft); }
.step .step-icon{
  width:26px; height:26px; border-radius:50%; flex-shrink:0; display:flex; align-items:center; justify-content:center;
  background:var(--bg-elev-2); border:1.5px solid var(--border);
}
.step.active .step-icon{ border-color:var(--accent-2); }
.step.active .step-icon .spinner{ width:12px; height:12px; border-radius:50%; border:2px solid var(--accent-soft); border-top-color:var(--accent-2); animation:spin .8s linear infinite; }
.step.done .step-icon{ background:var(--accent); border-color:var(--accent); }
.step.done .step-icon svg{ width:13px; height:13px; stroke:#04140f; animation:tick-in .3s ease; }
@keyframes tick-in{ from{ transform:scale(0) rotate(-45deg);} to{ transform:scale(1) rotate(0);} }
.step.error .step-icon{ background:var(--danger); border-color:var(--danger); }
.step .label{ font-size:13px; flex:1; }
.step .label small{ display:block; color:var(--text-faint); font-size:11px; margin-top:2px; font-family:var(--font-mono); direction:ltr; }

.xterm{ height:100%; }
.xterm-viewport::-webkit-scrollbar{ width:8px; }

.kbd-hint{
  position:fixed; bottom:14px; left:50%; transform:translateX(-50%); z-index:15;
  bottom:calc(14px + env(safe-area-inset-bottom));
  background:var(--card-solid); border:1px solid var(--border); border-radius:10px;
  padding:7px 14px; font-size:11px; color:var(--text-dim); display:flex; gap:14px; flex-wrap:wrap;
  box-shadow:var(--shadow); opacity:.9;
}
.kbd-hint b{ color:var(--accent); font-family:var(--font-mono); }

/* install-app button: compact circular icon on small screens */
@media (max-width:640px){
  .install-btn{
    width:40px; height:40px; padding:0; border-radius:50%; justify-content:center;
  }
  .install-btn span{ display:none; }
  .install-btn svg{ width:18px; height:18px; }
}

@media (max-width:640px){
  .container{ padding:18px 12px 40px; }
  .server-grid{ grid-template-columns:1fr; }
  .brand span.name{ display:none; }
  .kbd-hint{ display:none; }
  .term-actions .btn span{ display:none; }
}