:root{
  --bg:#0b0f14;
  --panel:#131a22;
  --panel-2:#0f1620;
  --text:#e6eef7;
  --muted:#94a3b8;
  --link:#a5b4fc;
  --accent:#5eead4;
  --border:#223042;
  --danger:#f97373;
  --success:#34d399;
  color-scheme: dark;
}
*{box-sizing:border-box}
html,body{height:100%}
body{
  margin:0;
  background:var(--bg);
  color:var(--text);
  font:16px/1.45 system-ui, Segoe UI, Roboto, Ubuntu, Arial, sans-serif;
  text-rendering:optimizeLegibility;
}
a{color:var(--link);text-decoration:none}
a:hover{text-decoration:underline}
.visually-hidden{position:absolute!important;width:1px;height:1px;margin:-1px;border:0;padding:0;clip:rect(0 0 0 0);overflow:hidden}

/* Topbar */
.topbar{
  position:sticky;top:0;z-index:10;
  display:flex;align-items:center;justify-content:space-between;
  padding:12px 16px;background:var(--panel);border-bottom:1px solid var(--border);
  backdrop-filter:saturate(140%) blur(6px);
}
.brand{display:flex;align-items:center;gap:8px;margin:0;font-size:18px;letter-spacing:0.2px}
.brand__dot{width:10px;height:10px;border-radius:50%;background:var(--accent);box-shadow:0 0 12px var(--accent)}
.brand__alt{opacity:.85}
.topbar__right{display:flex;gap:8px;align-items:center}
.status{font-size:12px;color:var(--muted)}

/* Buttons */
.btn{position:relative;display:inline-flex;align-items:center;gap:8px;
  border:1px solid var(--border);background:#111827;color:#e2e8f0;
  padding:8px 12px;border-radius:8px;cursor:pointer;user-select:none;
  transition:transform .15s ease, box-shadow .15s ease, background .2s ease}
.btn:hover{transform:translateY(-1px);box-shadow:0 4px 16px rgba(0,0,0,.25)}
.btn:active{transform:translateY(0)}
.btn:disabled{opacity:.6;cursor:not-allowed}
.btn--small{padding:6px 10px;font-size:12px}
.btn--primary{background:var(--accent);color:#071116;border-color:transparent}
.btn--ghost{background:transparent}
.btn__spinner{display:none;width:14px;height:14px;border:2px solid rgba(255,255,255,.25);border-top-color:rgba(255,255,255,.9);border-radius:50%;animation:spin 1s linear infinite}
.btn--loading .btn__label{opacity:0}
.btn--loading .btn__spinner{display:inline-block}
@keyframes spin{to{transform:rotate(360deg)}}

/* Fields */
.auth{display:flex;gap:16px;align-items:flex-end;padding:10px 16px;background:var(--panel);border-bottom:1px solid var(--border)}
.field{display:flex;flex-direction:column;gap:4px;min-width:260px}
.field__label{font-size:12px;color:var(--muted)}
.field__input{background:var(--panel-2);border:1px solid var(--border);color:var(--text);padding:8px 10px;border-radius:8px}
.hint{color:var(--muted);font-size:12px}

/* Layout */
.layout{
  display:grid;
  grid-template-columns:minmax(400px, 1.5fr) 2fr; /* more balanced */
  gap:16px;padding:16px;
  min-height:calc(100vh - 140px); /* allow content to grow; footer won't overlap */
  align-items:stretch;
}
@media (max-width: 1020px){ .layout{grid-template-columns: 1fr; height:auto;} }

.layout__column{display:flex;flex-direction:column;gap:16px;height:100%}

.panel{background:var(--panel);border:1px solid var(--border);border-radius:12px;overflow:hidden}
.panel__header{display:flex;align-items:center;justify-content:space-between;padding:12px 14px;border-bottom:1px solid var(--border)}
.panel__header h2{margin:0;font-weight:600;font-size:16px}

/* Chat panel */
.chat{align-self:stretch;flex:1;display:flex;flex-direction:column}
.chat .panel__content{display:grid;grid-template-rows:minmax(60px, 1fr) auto;flex:1}


/* Chat */
.chat-log{min-height:60px;overflow:auto;padding:12px;display:flex;flex-direction:column;gap:8px}
.msg{display:flex;gap:10px;align-items:flex-start;animation:fadeIn .2s ease both}
.msg .role{min-width:64px;color:var(--muted);font-size:12px;text-transform:uppercase;letter-spacing:.06em}
.msg .text{white-space:pre-wrap;background:var(--panel-2);border:1px solid var(--border);padding:8px 10px;border-radius:10px;flex:1}
.msg.error .text{border-color:rgba(249,115,115,.5)}

.chat-form{display:flex;gap:8px;padding:10px;border-top:1px solid var(--border)}
.chat-form input{flex:1;background:var(--panel-2);border:1px solid var(--border);color:var(--text);padding:10px;border-radius:8px}

/* Gallery */
.gallery{display:flex;flex-direction:column;height:100%}
.grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(260px,1fr));gap:14px;padding:12px;overflow:auto}
.card{background:var(--panel-2);border:1px solid var(--border);border-radius:12px;overflow:hidden;display:flex;flex-direction:column;animation:fadeInUp .35s ease both}
.card:hover{transform:translateY(-2px);box-shadow:0 10px 24px rgba(0,0,0,.3)}
.card img{width:100%;height:260px;object-fit:cover;display:block;background:#0d1219;cursor:zoom-in;transition:transform .25s ease}
.card:hover img{transform:scale(1.02)}
.card .meta{padding:10px;color:var(--muted);font-size:12px;display:flex;flex-direction:column;gap:8px}
.row-actions{display:grid;grid-template-columns:repeat(auto-fit,minmax(120px,1fr));gap:8px}
.row-actions a,.row-actions button{
  color:#cbd5e1;background:#111827;border:1px solid var(--border);
  padding:6px 8px;border-radius:8px;cursor:pointer;text-align:center;
  transition:background .2s ease, transform .15s ease;
  /* Stretch items to grid cell width for consistent alignment */
  display:flex; align-items:center; justify-content:center; width:100%;
}
.row-actions a:hover,.row-actions button:hover{background:#172133;transform:translateY(-1px)}
.row-actions button{font:inherit}
.skeleton{background:linear-gradient(90deg,#111827,#0f1620,#111827);background-size:200% 100%;animation:shimmer 1.2s infinite}
@keyframes shimmer{0%{background-position:200% 0}100%{background-position:-200% 0}}

/* Auth placeholder toggle */
.auth-placeholder{display:none;padding:60px 16px;text-align:center;color:var(--muted)}
.auth-placeholder__content{max-width:420px;margin:0 auto;padding:28px;background:#111827;border:1px dashed var(--border);border-radius:14px}
.auth-placeholder__content h2{margin:0 0 12px;font-size:20px;color:#e2e8f0}
.auth-placeholder__content p{margin:0;font-size:14px;line-height:1.5;color:#cbd5e1}
body.app-locked main,body.app-locked .footer{display:none}
body.app-locked .auth-placeholder{display:block}

/* Modal */
.modal{position:fixed;inset:0;display:flex;align-items:center;justify-content:center;background:rgba(11,15,20,0.65);z-index:1000;padding:16px;animation:fadeIn .2s ease both}
.modal.hidden{display:none}
.modal-dialog{position:relative;width:100%;max-width:min(680px, 92vw);max-height:84vh;overflow:auto;background:var(--panel);border:1px solid var(--border);border-radius:14px;padding:18px;box-shadow:0 20px 45px rgba(0,0,0,0.45);transform:scale(.98);animation:pop .18s ease .05s both}
.modal-dialog--image{display:grid;grid-template-rows:auto 1fr;gap:10px}
.modal-close{position:absolute;top:12px;right:12px;width:34px;height:34px;border-radius:50%;border:1px solid var(--border);background:#111a26;color:#e2e8f0;font-size:20px;cursor:pointer;line-height:1}
.modal-close:hover{background:#1f2937;color:#fff}
.modal-title{margin:0 0 8px;font-size:16px}
.modal-body__image{max-width:min(640px, 78vw);max-height:68vh;display:block;margin:0 auto;border-radius:12px}
.meta-block{margin-top:10px;display:grid;grid-template-columns:140px 1fr;gap:6px 12px;font-size:13px}
.meta-block dt{color:var(--muted)}
.meta-block dd{margin:0;color:#cbd5e1;word-break:break-word}
.meta-actions{margin-top:10px;display:flex;gap:10px;flex-wrap:wrap}

.modal-dialog h3.success{color:var(--success)}
.modal-dialog h3.failure{color:var(--danger)}
.copy-btn{background:#1f2937;color:#e2e8f0;border:1px solid var(--border);border-radius:6px;padding:4px 10px;font-size:12px;cursor:pointer;white-space:nowrap}
.copy-btn:hover{background:#273548}

/* Footer */
.footer{padding:12px 16px;color:var(--muted)}

/* Animations */
@keyframes fadeIn{from{opacity:0}to{opacity:1}}
@keyframes fadeInUp{from{opacity:0; transform:translateY(6px)}to{opacity:1; transform:translateY(0)}}
@keyframes pop{from{transform:scale(.98)}to{transform:scale(1)}}
/* Machine panel */
.machine{flex:0 0 auto}

/* Machine info */
.panel__content--machine{display:block;padding:12px}
.machine-info{display:flex;flex-direction:column;gap:12px;font-size:13px;color:var(--muted)}
.machine-info__status{color:var(--muted);font-size:12px;letter-spacing:.03em;text-transform:uppercase}
.machine-info__section{display:flex;flex-direction:column;gap:6px}
.machine-info__section h3{margin:0;font-size:13px;font-weight:600;color:var(--text)}
.machine-info .meta-block{margin:0}
.machine-info .copy-btn{margin-left:8px}