/* SpecPack Pages — terminal / editor / infra aesthetic */
:root {
  --bg: #0d0f12;
  --bg-elev: #12151a;
  --panel: #14181e;
  --panel-edge: #1e2430;
  --border: #2a3140;
  --border-hi: #3a4458;
  --text: #e6edf3;
  --muted: #8b949e;
  --dim: #6e7681;
  --phosphor: #3ddc97;
  --phosphor-hi: #39ff14;
  --phosphor-dim: rgba(61, 220, 151, 0.12);
  --amber: #f0a500;
  --danger: #ff5c6c;
  --danger-bg: rgba(255, 92, 108, 0.08);
  --ok: #3ddc97;
  --ok-bg: rgba(61, 220, 151, 0.08);
  --mono: ui-monospace, "SF Mono", "Cascadia Code", "JetBrains Mono", Menlo, Consolas, monospace;
  --sans: "Segoe UI", system-ui, -apple-system, sans-serif;
  --r: 2px;
}

* { box-sizing: border-box; }

html, body {
  margin: 0;
  min-height: 100%;
  color: var(--text);
  background: var(--bg);
  font-family: var(--sans);
  font-size: 15px;
  line-height: 1.45;
}

body {
  background-image:
    linear-gradient(rgba(255,255,255,0.015) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,0.015) 1px, transparent 1px);
  background-size: 24px 24px;
  background-color: var(--bg);
}

.shell {
  max-width: 1080px;
  margin: 0 auto;
  padding: 20px 18px 48px;
}

/* Top bar */
.topbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  padding: 10px 0 18px;
  border-bottom: 1px solid var(--border);
  margin-bottom: 22px;
  font-family: var(--mono);
  font-size: 0.82rem;
}
.brand { display: flex; align-items: baseline; gap: 10px; flex-wrap: wrap; }
.prompt {
  color: var(--phosphor);
  font-weight: 700;
}
.brand-name {
  color: var(--text);
  font-weight: 700;
  letter-spacing: 0.02em;
}
.brand-slug {
  color: var(--dim);
  font-size: 0.78rem;
}
.topbar-meta { color: var(--dim); }

/* Hero claim */
.hero { margin-bottom: 20px; }
.claim {
  margin: 0 0 8px;
  font-family: var(--mono);
  font-size: clamp(1.15rem, 2.6vw, 1.55rem);
  font-weight: 700;
  letter-spacing: -0.02em;
  color: var(--text);
  line-height: 1.3;
}
.claim::before {
  content: "// ";
  color: var(--phosphor);
  font-weight: 600;
}
.trust {
  margin: 0;
  font-family: var(--mono);
  font-size: 0.78rem;
  color: var(--muted);
  letter-spacing: 0.01em;
}

/* Two-column layout */
.layout {
  display: grid;
  grid-template-columns: 1.35fr 0.9fr;
  gap: 14px;
  align-items: start;
}
@media (max-width: 820px) {
  .layout { grid-template-columns: 1fr; }
}

.panel {
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: var(--r);
  overflow: hidden;
}
.panel-chrome {
  display: flex;
  align-items: center;
  gap: 6px;
  padding: 8px 12px;
  background: var(--bg-elev);
  border-bottom: 1px solid var(--border);
  font-family: var(--mono);
  font-size: 0.72rem;
  color: var(--dim);
}
.panel-chrome .dot {
  width: 8px; height: 8px;
  border-radius: 1px;
  background: var(--border-hi);
}
.panel-chrome .dot:nth-child(1) { background: #5a6270; }
.chrome-title { margin-left: 6px; }

.hero-panel { padding: 0 0 16px; }
.hero-panel > .drop,
.hero-panel > .row,
.hero-panel > .paste-block,
.hero-panel > .caps,
.hero-panel > .msg {
  margin-left: 14px;
  margin-right: 14px;
}

/* Dropzone — HERO */
.drop {
  margin-top: 14px;
  border: 1px dashed var(--border-hi);
  border-radius: var(--r);
  padding: 32px 18px;
  text-align: center;
  background: #0a0c0f;
  cursor: pointer;
  transition: border-color 0.12s, background 0.12s, box-shadow 0.12s;
  font-family: var(--mono);
}
.drop.phosphor:hover,
.drop.dragover {
  border-color: var(--phosphor);
  background: var(--phosphor-dim);
  box-shadow: inset 0 0 0 1px rgba(61, 220, 151, 0.25);
}
.drop-glyph {
  font-size: 1.4rem;
  color: var(--phosphor);
  margin-bottom: 8px;
  font-weight: 700;
  letter-spacing: 0.05em;
}
.drop strong {
  display: block;
  font-size: 0.95rem;
  font-weight: 600;
  color: var(--text);
  margin-bottom: 4px;
}
.drop span { color: var(--muted); font-size: 0.8rem; }

.row {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 12px;
  align-items: center;
}

button, .btn {
  appearance: none;
  border: 1px solid var(--phosphor);
  border-radius: var(--r);
  padding: 9px 14px;
  font-family: var(--mono);
  font-weight: 600;
  font-size: 0.82rem;
  cursor: pointer;
  color: #0d0f12;
  background: var(--phosphor);
}
button:hover:not(:disabled), .btn:hover { filter: brightness(1.06); }
button:disabled { opacity: 0.45; cursor: not-allowed; }
button.ok, .btn.ok {
  background: var(--phosphor-hi);
  border-color: var(--phosphor-hi);
  color: #0a0c0f;
  text-decoration: none;
  display: inline-block;
}
button.secondary, .btn.secondary {
  background: transparent;
  color: var(--text);
  border-color: var(--border-hi);
}

label.file-btn {
  display: inline-flex;
  align-items: center;
  padding: 9px 14px;
  border-radius: var(--r);
  border: 1px solid var(--border-hi);
  cursor: pointer;
  font-family: var(--mono);
  font-weight: 600;
  font-size: 0.82rem;
  background: var(--bg-elev);
  color: var(--text);
}
label.file-btn:hover { border-color: var(--muted); }
input[type=file] { display: none; }

.hint, .chosen {
  color: var(--muted);
  font-family: var(--mono);
  font-size: 0.75rem;
  margin: 0;
}

.paste-block { margin-top: 14px; }
.paste-block summary {
  cursor: pointer;
  color: var(--muted);
  font-family: var(--mono);
  font-size: 0.78rem;
  font-weight: 600;
  user-select: none;
}
.paste-block summary:hover { color: var(--phosphor); }
textarea {
  width: 100%;
  min-height: 140px;
  margin-top: 8px;
  background: #0a0c0f;
  color: var(--text);
  border: 1px solid var(--border);
  border-radius: var(--r);
  padding: 10px 12px;
  font-family: var(--mono);
  font-size: 0.8rem;
  resize: vertical;
  line-height: 1.4;
}
textarea:focus {
  outline: none;
  border-color: var(--phosphor);
  box-shadow: 0 0 0 1px var(--phosphor-dim);
}

.caps {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  margin-top: 12px;
}
.cap {
  font-family: var(--mono);
  font-size: 0.7rem;
  color: var(--dim);
  border: 1px solid var(--border);
  border-radius: var(--r);
  padding: 2px 8px;
  background: var(--bg-elev);
}

.msg {
  margin-top: 14px;
  padding: 12px 14px;
  border-radius: var(--r);
  border: 1px solid var(--border);
  display: none;
  font-family: var(--mono);
  font-size: 0.82rem;
}
.msg.show { display: block; }
.msg.error {
  border-color: rgba(255, 92, 108, 0.55);
  background: var(--danger-bg);
}
.msg.success {
  border-color: rgba(61, 220, 151, 0.45);
  background: var(--ok-bg);
}
.msg h3 {
  margin: 0 0 6px;
  font-size: 0.9rem;
  font-family: var(--mono);
  color: var(--text);
}
.msg.error h3 { color: var(--danger); }
.msg.success h3 { color: var(--phosphor); }
.msg p { margin: 0 0 6px; color: var(--muted); font-size: 0.8rem; }
.msg ul {
  margin: 6px 0 10px;
  padding-left: 18px;
  color: var(--text);
  font-size: 0.78rem;
}
.msg code { font-size: 0.92em; color: var(--phosphor); }
.msg .row { margin-left: 0; margin-right: 0; }

/* File tree panel */
.tree-panel { position: sticky; top: 12px; }
.file-tree {
  margin: 0;
  padding: 14px 16px 8px;
  background: #0a0c0f;
  font-family: var(--mono);
  font-size: 0.8rem;
  line-height: 1.55;
  color: var(--muted);
  overflow-x: auto;
}
.file-tree code { font-family: inherit; }
.tree-dir { color: var(--amber); font-weight: 600; }
.tree-file { color: var(--phosphor); }
.tree-note {
  margin: 0;
  padding: 10px 14px 14px;
  font-family: var(--mono);
  font-size: 0.7rem;
  color: var(--dim);
  border-top: 1px solid var(--border);
  background: var(--bg-elev);
}

.foot {
  margin-top: 28px;
  padding-top: 14px;
  border-top: 1px solid var(--border);
  display: flex;
  flex-wrap: wrap;
  gap: 8px 20px;
  font-family: var(--mono);
  font-size: 0.72rem;
  color: var(--dim);
}
.foot strong { color: var(--muted); font-weight: 600; }
.foot code { color: var(--phosphor); font-size: 0.95em; }