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

:root {
  --bg: #080b14;
  --bg2: #0d1117;
  --panel: rgba(255,255,255,0.04);
  --panel-solid: #0f1620;
  --panel-border: rgba(255,255,255,0.08);
  --panel-hover: rgba(255,255,255,0.07);
  --text: #e8ecf4;
  --text-muted: #6b7a94;
  --text-dim: #8a98b4;
  --accent: #6c63ff;
  --accent2: #00d4ff;
  --accent-glow: rgba(108,99,255,0.25);
  --success: #00e676;
  --warning: #ffb300;
  --danger: #ff5252;
  --sidebar-w: 240px;
  --topbar-h: 56px;
  --radius: 12px;
  --radius-sm: 8px;
  color-scheme: dark;
}

*{box-sizing:border-box;margin:0;padding:0}

body{
  font-family:'Inter',system-ui,sans-serif;
  background:var(--bg);
  color:var(--text);
  min-height:100vh;
  display:flex;
}

/* ── SIDEBAR ── */
.app-sidebar{
  position:fixed;top:0;left:0;bottom:0;
  width:var(--sidebar-w);
  background:var(--bg2);
  border-right:1px solid var(--panel-border);
  display:flex;flex-direction:column;
  z-index:100;
  overflow:hidden;
}

.sidebar-logo{
  padding:20px 20px 16px;
  border-bottom:1px solid var(--panel-border);
  flex-shrink:0;
}
.sidebar-logo .logo-mark{
  font-family:'Space Grotesk',sans-serif;
  font-size:1.15rem;font-weight:700;
  background:linear-gradient(135deg,var(--accent),var(--accent2));
  -webkit-background-clip:text;-webkit-text-fill-color:transparent;
  display:block;
}
.sidebar-logo .logo-sub{
  font-size:0.7rem;color:var(--text-muted);letter-spacing:.08em;text-transform:uppercase;margin-top:2px;
}

.sidebar-nav{flex:1;padding:12px 10px;overflow-y:auto;display:flex;flex-direction:column;gap:2px}
.nav-item{
  display:flex;align-items:center;gap:12px;
  padding:10px 12px;border-radius:var(--radius-sm);
  color:var(--text-muted);font-size:.875rem;font-weight:500;
  text-decoration:none;cursor:pointer;border:none;background:none;width:100%;text-align:left;
  transition:background .15s,color .15s;position:relative;
}
.nav-item:hover{background:var(--panel-hover);color:var(--text)}
.nav-item.active{background:var(--accent-glow);color:var(--accent)}
.nav-item.active::before{
  content:'';position:absolute;left:0;top:50%;transform:translateY(-50%);
  width:3px;height:60%;background:var(--accent);border-radius:0 3px 3px 0;
}
.nav-item svg{width:18px;height:18px;flex-shrink:0;opacity:.8}
.nav-item.active svg{opacity:1}

.sidebar-servers{
  padding:12px 14px;border-top:1px solid var(--panel-border);flex-shrink:0;
}
.sidebar-servers .srv-title{font-size:.7rem;color:var(--text-muted);text-transform:uppercase;letter-spacing:.08em}
.sidebar-servers .srv-title-btn{
  display:block;width:100%;text-align:left;font:inherit;color:inherit;letter-spacing:inherit;text-transform:inherit;
  background:transparent;border:none;padding:0;margin:0 0 8px;cursor:pointer;border-radius:var(--radius-sm);
}
.sidebar-servers .srv-title-btn:hover{color:var(--text)}
.sidebar-servers .srv-title-btn:focus-visible{outline:2px solid var(--accent);outline-offset:2px}
.sidebar-servers .srv-footnote{
  font-size:.65rem;line-height:1.45;color:var(--text-muted);margin:10px 0 0;padding-top:8px;
  border-top:1px solid var(--panel-border);opacity:.92
}
.srv-item{display:flex;align-items:center;gap:8px;padding:4px 0;font-size:.75rem;color:var(--text-muted)}
.srv-dot{width:7px;height:7px;border-radius:50%;background:#333;flex-shrink:0;transition:background .3s}
.srv-dot.online{background:var(--success);box-shadow:0 0 6px var(--success)}
.srv-dot.offline{background:var(--danger)}
.srv-dot.checking{background:var(--warning);animation:pulse-dot 1s infinite}
.srv-dot.disabled{background:var(--text-muted);opacity:.7}
@keyframes pulse-dot{0%,100%{opacity:1}50%{opacity:.4}}

/* ── MAIN AREA ── */
.app-main{
  margin-left:var(--sidebar-w);
  flex:1;min-width:0;
  display:flex;flex-direction:column;
  min-height:100vh;
}

.app-topbar{
  height:var(--topbar-h);
  border-bottom:1px solid var(--panel-border);
  background:rgba(8,11,20,.85);
  backdrop-filter:blur(12px);
  display:flex;align-items:center;padding:0 24px;
  position:sticky;top:0;z-index:50;
}
.topbar-title{font-family:'Space Grotesk',sans-serif;font-size:1.1rem;font-weight:700;color:var(--text)}
.topbar-sub{font-size:.8rem;color:var(--text-muted);margin-left:12px}

.app-content{flex:1;padding:24px;overflow-y:auto}

/* ── CARDS ── */
.card{
  background:var(--panel);
  border:1px solid var(--panel-border);
  border-radius:var(--radius);
  padding:18px 20px;
  backdrop-filter:blur(4px);
  transition:border-color .2s;
}
.card:hover{border-color:rgba(255,255,255,0.12)}
.card h2{
  font-family:'Space Grotesk',sans-serif;
  font-size:.9rem;font-weight:600;
  color:var(--text);margin-bottom:14px;
  display:flex;align-items:center;gap:8px;
}
.card h2 .card-icon{width:16px;height:16px;color:var(--accent);flex-shrink:0}
.card+.card{margin-top:14px}

.card-grid{display:grid;gap:14px}

/* ── FORM ELEMENTS ── */
label{
  display:block;font-size:.8rem;color:var(--text-muted);
  margin-bottom:5px;margin-top:12px;font-weight:500;
}
label:first-child{margin-top:0}

input[type=text],input[type=url],input[type=number],
textarea,select{
  width:100%;
  background:#0a1020;
  border:1px solid var(--panel-border);
  color:var(--text);
  border-radius:var(--radius-sm);
  padding:9px 12px;
  font-size:.875rem;font-family:inherit;
  transition:border-color .15s,box-shadow .15s;
  outline:none;
}
input[readonly]{
  opacity:.88;
  cursor:not-allowed;
}
input[type=text]:focus,input[type=url]:focus,input[type=number]:focus,
textarea:focus,select:focus{
  border-color:var(--accent);
  box-shadow:0 0 0 3px var(--accent-glow);
}
select{cursor:pointer}
textarea{resize:vertical;min-height:80px;line-height:1.5}
input[type=range]{width:100%;accent-color:var(--accent);cursor:pointer}
input[type=file]{
  width:100%;padding:10px 12px;
  background:#0a1020;border:1px dashed var(--panel-border);
  border-radius:var(--radius-sm);color:var(--text-muted);
  font-size:.85rem;cursor:pointer;transition:border-color .15s;
}
input[type=file]:hover{border-color:var(--accent)}

/* ── BUTTONS ── */
button,.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:7px;
  padding:9px 16px;
  background:linear-gradient(135deg,var(--accent),#5a52e0);
  border:none;border-radius:var(--radius-sm);
  color:#fff;font-size:.875rem;font-weight:600;font-family:inherit;
  cursor:pointer;transition:opacity .15s,transform .1s,box-shadow .15s;
  white-space:nowrap;
}
button:hover:not(:disabled){opacity:.88;box-shadow:0 4px 16px var(--accent-glow)}
button:active:not(:disabled){transform:translateY(1px)}
button:disabled{opacity:.35;cursor:not-allowed}
button.btn-ghost{background:var(--panel);border:1px solid var(--panel-border);color:var(--text-muted)}
button.btn-ghost:hover:not(:disabled){color:var(--text);background:var(--panel-hover);box-shadow:none}
button.btn-danger{background:linear-gradient(135deg,#c62828,#b71c1c)}
button.btn-success{background:linear-gradient(135deg,#00897b,#00695c)}
button.btn-sm{padding:6px 12px;font-size:.8rem}

/* ── ROW / GRID HELPERS ── */
.row{display:flex;gap:10px;flex-wrap:wrap;margin-top:12px}
.row button{flex:1;min-width:120px}
.grid-2{display:grid;grid-template-columns:1fr 1fr;gap:12px}
.grid-3{display:grid;grid-template-columns:1fr 1fr 1fr;gap:12px}
@media(max-width:700px){.grid-2,.grid-3{grid-template-columns:1fr}}
.hidden{display:none!important}

/* ── HINTS ── */
.hint{font-size:.8rem;color:var(--text-muted);margin-top:6px;line-height:1.5}
.hint code,.hint strong{color:var(--text-dim)}
.hint a{color:var(--accent);text-decoration:none}
.hint a:hover{text-decoration:underline}

/* ── STATUS ── */
.status-text{font-size:.82rem;color:var(--text-muted);margin-top:8px;white-space:pre-wrap;line-height:1.6}
.status-ok{color:var(--success)}
.status-err{color:var(--danger)}

/* ── PROGRESS BAR ── */
.progress-wrap{margin-top:14px}
.progress-bar{
  height:5px;background:rgba(255,255,255,0.07);
  border-radius:99px;overflow:hidden;margin-bottom:8px;
}
.progress-fill{
  height:100%;border-radius:99px;
  background:linear-gradient(90deg,var(--accent),var(--accent2));
  transition:width .4s ease;
  box-shadow:0 0 8px var(--accent);
}

/* Pipeline steps */
.pipeline-steps{display:flex;flex-direction:column;gap:8px;margin-top:12px}
.step-item{
  display:flex;align-items:center;gap:12px;
  padding:10px 14px;border-radius:var(--radius-sm);
  background:rgba(255,255,255,0.03);border:1px solid var(--panel-border);
  font-size:.85rem;transition:border-color .2s,background .2s;
}
.step-item.active{border-color:var(--accent);background:var(--accent-glow)}
.step-item.done{border-color:rgba(0,230,118,.3);background:rgba(0,230,118,.05)}
.step-item.error{border-color:rgba(255,82,82,.4);background:rgba(255,82,82,.06)}
.step-icon{
  width:28px;height:28px;border-radius:50%;
  display:flex;align-items:center;justify-content:center;
  background:rgba(255,255,255,0.06);flex-shrink:0;font-size:.8rem;
}
.step-item.done .step-icon{background:rgba(0,230,118,.2);color:var(--success)}
.step-item.active .step-icon{background:var(--accent-glow);color:var(--accent)}
.step-item.error .step-icon{background:rgba(255,82,82,.2);color:var(--danger)}
.step-info{flex:1}
.step-name{font-weight:600;color:var(--text);font-size:.82rem}
.step-detail{font-size:.75rem;color:var(--text-muted);margin-top:2px}
.step-spinner{
  width:16px;height:16px;border:2px solid rgba(108,99,255,.3);
  border-top-color:var(--accent);border-radius:50%;
  animation:spin .7s linear infinite;flex-shrink:0;
}
@keyframes spin{to{transform:rotate(360deg)}}

/* ── TOGGLE SWITCH ── */
.toggle-wrap{display:flex;align-items:center;gap:10px;cursor:pointer;user-select:none;margin-top:8px}
.toggle-wrap input{display:none}
.toggle-track{
  width:42px;height:24px;border-radius:99px;
  background:rgba(255,255,255,0.1);border:1px solid var(--panel-border);
  position:relative;transition:background .2s,border-color .2s;flex-shrink:0;
}
.toggle-track::after{
  content:'';position:absolute;
  width:18px;height:18px;border-radius:50%;
  background:#fff;top:2px;left:2px;
  transition:transform .2s;
}
.toggle-wrap input:checked ~ .toggle-track{background:var(--accent);border-color:var(--accent)}
.toggle-wrap input:checked ~ .toggle-track::after{transform:translateX(18px)}
.toggle-label{font-size:.88rem;font-weight:600;color:var(--text)}

/* ── CANVAS AREA ── */
.canvas-wrap{
  border:1px solid var(--panel-border);
  border-radius:var(--radius);
  background:#06080d;
  padding:10px;
  display:flex;align-items:center;justify-content:center;
  position:relative;
}
canvas{
  width:100%;max-height:calc(100vh - 200px);
  border-radius:var(--radius-sm);background:#06080d;
}

/* ── TABS ── */
.tabs{display:flex;gap:6px;margin-bottom:18px;flex-wrap:wrap}
.tab{
  padding:9px 18px;border-radius:var(--radius-sm);
  background:var(--panel);border:1px solid var(--panel-border);
  color:var(--text-muted);font-weight:600;font-size:.85rem;
  cursor:pointer;transition:all .15s;
}
.tab:hover{color:var(--text);border-color:rgba(255,255,255,.15)}
.tab.active{background:var(--accent-glow);border-color:var(--accent);color:var(--accent)}

/* ── FIELDSET ── */
fieldset{
  border:1px solid var(--panel-border);border-radius:var(--radius-sm);
  padding:14px 16px;margin-top:14px;
}
legend{padding:0 8px;font-weight:600;font-size:.85rem;color:var(--text-dim)}

/* ── MEDIA ── */
audio{width:100%;margin-top:12px;border-radius:var(--radius-sm)}
img.preview-img{
  max-width:100%;height:auto;border-radius:var(--radius-sm);
  border:1px solid var(--panel-border);margin-top:10px;
}
pre.code-out{
  white-space:pre-wrap;font-size:.77rem;color:var(--text-muted);
  background:#050810;border:1px solid var(--panel-border);
  border-radius:var(--radius-sm);padding:12px;margin-top:8px;
  max-height:240px;overflow:auto;
}

/* ── TRANSPARENT CHECKERBOARD ── */
.checker-bg{
  background-color:#12151c;
  background-image:
    linear-gradient(45deg,#1e232e 25%,transparent 25%),
    linear-gradient(-45deg,#1e232e 25%,transparent 25%),
    linear-gradient(45deg,transparent 75%,#1e232e 75%),
    linear-gradient(-45deg,transparent 75%,#1e232e 75%);
  background-size:16px 16px;
  background-position:0 0,0 8px,8px -8px,-8px 0;
}

/* ── BUTTON GRID ── */
.btn-grid{display:grid;grid-template-columns:1fr 1fr;gap:6px}
.btn-grid button{font-size:.78rem;padding:8px 6px}
.btn-grid button.active{
  outline:2px solid #feca57;
  background:linear-gradient(135deg,#8d6ef9,#5c4ed6);
}

/* ── INLINE CHECKBOX ── */
.check-row{display:flex;align-items:center;gap:8px;margin-top:10px;cursor:pointer;font-size:.85rem}
.check-row input{accent-color:var(--accent);width:15px;height:15px;cursor:pointer;flex-shrink:0}

/* ── LAYOUT HELPERS ── */
.layout-sidebar-canvas{
  display:grid;grid-template-columns:340px 1fr;gap:16px;align-items:start;
}
.layout-sidebar-canvas .controls{display:flex;flex-direction:column;gap:14px;max-height:calc(100vh - 110px);overflow-y:auto;padding-right:4px}
@media(max-width:1100px){.layout-sidebar-canvas{grid-template-columns:1fr}}
@media(max-width:900px){.app-main{margin-left:0}.app-sidebar{display:none}}

/* ── NOTIFICATIONS ── */
.toast{
  position:fixed;bottom:24px;right:24px;
  background:var(--panel-solid);border:1px solid var(--panel-border);
  border-radius:var(--radius);padding:12px 18px;
  font-size:.85rem;color:var(--text);
  box-shadow:0 8px 32px rgba(0,0,0,.5);
  z-index:999;opacity:0;transform:translateY(8px);
  transition:opacity .3s,transform .3s;
  max-width:320px;
}
.toast.show{opacity:1;transform:translateY(0)}
.toast.ok{border-color:rgba(0,230,118,.4)}
.toast.err{border-color:rgba(255,82,82,.4)}