/* ── Design tokens ─────────────────────────────────────────── */
:root {
  --cf-orange:    #f38020;
  --cf-orange-h:  #e06010;
  --bg:           #0d1117;
  --bg-sidebar:   #010409;
  --bg-panel:     #161b22;
  --bg-panel-h:   #1c2330;
  --bg-input:     #0d1117;
  --border:       #30363d;
  --border-focus: #f38020;
  --text:         #e6edf3;
  --text-muted:   #8b949e;
  --text-link:    #58a6ff;
  --danger:       #da3633;
  --danger-h:     #b91c1c;
  --success:      #3fb950;
  --radius-sm:    6px;
  --radius:       10px;
  --radius-lg:    14px;
  --sidebar-w:    220px;
  --topbar-h:     56px;
  --transition:   180ms ease;
}

/* ── Reset ─────────────────────────────────────────────────── */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { font-size: 15px; }
body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  background: var(--bg);
  color: var(--text);
  min-height: 100dvh;
  line-height: 1.5;
}

/* ── Layout ────────────────────────────────────────────────── */
.sidebar {
  position: fixed;
  inset: 0 auto 0 0;
  width: var(--sidebar-w);
  background: var(--bg-sidebar);
  border-right: 1px solid var(--border);
  display: flex;
  flex-direction: column;
  gap: 0;
  z-index: 100;
  padding-bottom: 1rem;
}

.layout {
  margin-left: var(--sidebar-w);
  min-height: 100dvh;
  display: flex;
  flex-direction: column;
}

/* hide the inline topbar on desktop */
.topbar { display: none; }

/* ── Sidebar brand ─────────────────────────────────────────── */
.sidebar-brand {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  padding: 1.25rem 1rem 1.25rem 1.1rem;
  border-bottom: 1px solid var(--border);
}
.brand-icon { width: 28px; height: 28px; color: var(--cf-orange); flex-shrink: 0; }
.brand-name { font-size: 1rem; font-weight: 700; letter-spacing: -0.01em; color: var(--text); }

/* ── Sidebar nav ───────────────────────────────────────────── */
.sidebar-nav {
  display: flex;
  flex-direction: column;
  padding: 0.75rem 0.6rem;
  gap: 2px;
}

.nav-btn {
  display: flex;
  align-items: center;
  gap: 0.65rem;
  padding: 0.55rem 0.75rem;
  border: none;
  background: transparent;
  color: var(--text-muted);
  font-size: 0.9rem;
  font-weight: 500;
  border-radius: var(--radius-sm);
  cursor: pointer;
  transition: background var(--transition), color var(--transition);
  text-align: left;
  width: 100%;
}
.nav-btn svg { width: 18px; height: 18px; flex-shrink: 0; }
.nav-btn:hover { background: var(--bg-panel); color: var(--text); }
.nav-btn.active { background: rgba(243, 128, 32, 0.15); color: var(--cf-orange); }

/* ── Main content ──────────────────────────────────────────── */
.main {
  flex: 1;
  padding: 2rem 2.5rem;
  max-width: 900px;
  width: 100%;
}

/* ── Screens ───────────────────────────────────────────────── */
.screen { display: none; animation: fadeIn 200ms ease; }
.screen.active { display: block; }

@keyframes fadeIn {
  from { opacity: 0; transform: translateY(6px); }
  to   { opacity: 1; transform: translateY(0); }
}

.screen-header { margin-bottom: 1.75rem; }
.screen-header h1 { font-size: 1.6rem; font-weight: 700; letter-spacing: -0.02em; }
.screen-desc { margin-top: 0.3rem; color: var(--text-muted); font-size: 0.9rem; }

/* ── Cards ─────────────────────────────────────────────────── */
.card {
  background: var(--bg-panel);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 1.5rem;
  margin-bottom: 1.25rem;
}

.card-title { font-size: 0.95rem; font-weight: 600; margin-bottom: 1rem; }
.card-title-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 1rem;
  gap: 0.5rem;
}
.card-title-row .card-title { margin-bottom: 0; }

/* ── Forms ─────────────────────────────────────────────────── */
.field { display: flex; flex-direction: column; gap: 0.35rem; flex: 1; }
.field label { font-size: 0.8rem; font-weight: 500; color: var(--text-muted); text-transform: uppercase; letter-spacing: 0.04em; }
.optional { font-weight: 400; text-transform: none; letter-spacing: 0; }

.field-row { display: flex; gap: 1rem; margin-bottom: 0.9rem; flex-wrap: wrap; }
.field-row .field { min-width: 160px; }
.field:not(:first-child):last-child { flex: 0 0 180px; }

input[type="text"],
input[type="number"],
textarea {
  background: var(--bg-input);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  color: var(--text);
  font-family: "SF Mono", "Fira Code", "Fira Mono", monospace;
  font-size: 0.875rem;
  padding: 0.55rem 0.75rem;
  transition: border-color var(--transition);
  width: 100%;
  outline: none;
}
input[type="text"]::placeholder,
input[type="number"]::placeholder,
textarea::placeholder { color: var(--text-muted); }
input[type="text"]:focus,
input[type="number"]:focus,
textarea:focus { border-color: var(--cf-orange); }
textarea { resize: vertical; min-height: 80px; }

.kv-form .field { margin-bottom: 0.9rem; }
.form-actions { display: flex; justify-content: flex-end; padding-top: 0.5rem; }

/* ── Buttons ───────────────────────────────────────────────── */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  padding: 0.5rem 1.1rem;
  border: none;
  border-radius: var(--radius-sm);
  font-size: 0.875rem;
  font-weight: 600;
  cursor: pointer;
  transition: background var(--transition), opacity var(--transition);
  min-height: 44px;          /* touch target */
  min-width: 44px;
  white-space: nowrap;
}
.btn-primary { background: var(--cf-orange); color: #fff; }
.btn-primary:hover { background: var(--cf-orange-h); }
.btn-primary:disabled { opacity: 0.5; cursor: not-allowed; }
.btn-danger { background: var(--danger); color: #fff; font-size: 0.8rem; padding: 0.3rem 0.7rem; min-height: 32px; }
.btn-danger:hover { background: var(--danger-h); }
.btn-ghost {
  background: transparent;
  color: var(--text-muted);
  border: 1px solid var(--border);
  padding: 0.4rem 0.8rem;
  min-height: 36px;
}
.btn-ghost:hover { background: var(--bg-panel-h); color: var(--text); }
.btn-ghost svg { width: 14px; height: 14px; }
.btn-sm { font-size: 0.8rem; }

/* ── Tables ────────────────────────────────────────────────── */
.table-wrap { overflow-x: auto; -webkit-overflow-scrolling: touch; border-radius: var(--radius-sm); }

.data-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.875rem;
}
.data-table th {
  text-align: left;
  font-size: 0.75rem;
  font-weight: 600;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  padding: 0.5rem 0.75rem;
  border-bottom: 1px solid var(--border);
}
.data-table td {
  padding: 0.65rem 0.75rem;
  border-bottom: 1px solid rgba(48, 54, 61, 0.6);
  vertical-align: middle;
  word-break: break-all;
}
.data-table tr:last-child td { border-bottom: none; }
.data-table tr:hover td { background: var(--bg-panel-h); }
.data-table .mono { font-family: "SF Mono", "Fira Code", "Fira Mono", monospace; font-size: 0.8rem; }
.data-table .muted { color: var(--text-muted); font-size: 0.8rem; }
.col-actions { width: 1%; white-space: nowrap; }

.empty-row td {
  text-align: center;
  color: var(--text-muted);
  padding: 2rem;
  font-size: 0.875rem;
}

.kv-value-preview {
  max-width: 220px;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  font-family: "SF Mono", "Fira Code", "Fira Mono", monospace;
  font-size: 0.8rem;
  color: var(--text-muted);
  cursor: pointer;
}
.kv-value-preview:hover { color: var(--cf-orange); }

.actions-cell { display: flex; gap: 0.4rem; }

/* ── Drag & drop upload ────────────────────────────────────── */
.drop-zone {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 0.6rem;
  border: 2px dashed var(--border);
  border-radius: var(--radius);
  padding: 2.5rem 1rem;
  cursor: pointer;
  transition: border-color var(--transition), background var(--transition);
  text-align: center;
  user-select: none;
}
.drop-zone:hover,
.drop-zone.drag-over { border-color: var(--cf-orange); background: rgba(243, 128, 32, 0.06); }
.drop-icon { width: 40px; height: 40px; color: var(--text-muted); }
.drop-text { font-size: 0.9rem; color: var(--text-muted); }
.drop-link { color: var(--cf-orange); }
.drop-name { font-size: 0.8rem; font-family: "SF Mono", "Fira Code", monospace; color: var(--text); min-height: 1em; }

/* ── Progress bar ──────────────────────────────────────────── */
.progress-wrap {
  margin-top: 0.75rem;
  background: var(--bg-input);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  overflow: hidden;
  position: relative;
  height: 28px;
}
.progress-bar {
  height: 100%;
  width: 0%;
  background: linear-gradient(90deg, var(--cf-orange) 0%, #ffb347 100%);
  transition: width 300ms ease;
}
.progress-label {
  position: absolute;
  inset: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.75rem;
  font-weight: 600;
  color: #fff;
  mix-blend-mode: screen;
}

/* ── KV modal ──────────────────────────────────────────────── */
.modal-overlay {
  position: fixed;
  inset: 0;
  background: rgba(1, 4, 9, 0.75);
  backdrop-filter: blur(4px);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 200;
  padding: 1rem;
}
.modal-overlay[hidden] { display: none; }
.modal {
  background: var(--bg-panel);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  width: 100%;
  max-width: 540px;
  max-height: 70dvh;
  display: flex;
  flex-direction: column;
  overflow: hidden;
  box-shadow: 0 24px 64px rgba(0, 0, 0, 0.5);
}
.modal-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 1rem 1.25rem;
  border-bottom: 1px solid var(--border);
  gap: 0.75rem;
}
.modal-header h3 { font-size: 0.95rem; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.modal-close {
  background: none;
  border: none;
  color: var(--text-muted);
  font-size: 1.4rem;
  cursor: pointer;
  line-height: 1;
  padding: 0 0.25rem;
  min-height: 44px;
  min-width: 44px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: var(--radius-sm);
}
.modal-close:hover { color: var(--text); background: var(--bg-panel-h); }
.modal-value {
  padding: 1.25rem;
  font-family: "SF Mono", "Fira Code", "Fira Mono", monospace;
  font-size: 0.82rem;
  overflow: auto;
  white-space: pre-wrap;
  word-break: break-all;
  flex: 1;
  color: var(--text-muted);
}

/* ── Toasts ────────────────────────────────────────────────── */
.toast-container {
  position: fixed;
  bottom: 1.5rem;
  right: 1.5rem;
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
  z-index: 300;
  pointer-events: none;
}
.toast {
  background: var(--bg-panel);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  padding: 0.7rem 1rem;
  font-size: 0.875rem;
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.4);
  animation: slideUp 250ms ease forwards;
  max-width: 320px;
  display: flex;
  align-items: center;
  gap: 0.5rem;
}
.toast.success { border-left: 3px solid var(--success); }
.toast.error   { border-left: 3px solid var(--danger); }
@keyframes slideUp {
  from { opacity: 0; transform: translateY(12px); }
  to   { opacity: 1; transform: translateY(0); }
}

/* ── Mobile: ≤ 700px ───────────────────────────────────────── */
@media (max-width: 700px) {
  .sidebar { display: none; }

  .layout { margin-left: 0; }

  .topbar {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0 1rem;
    height: var(--topbar-h);
    background: var(--bg-sidebar);
    border-bottom: 1px solid var(--border);
    position: sticky;
    top: 0;
    z-index: 100;
    gap: 1rem;
  }
  .topbar .brand-name { font-size: 0.95rem; font-weight: 700; }
  .topbar .brand-icon { width: 22px; height: 22px; }

  .mobile-tabs {
    display: flex;
    gap: 0.25rem;
  }
  .tab-btn {
    display: flex;
    align-items: center;
    gap: 0.4rem;
    padding: 0.4rem 0.75rem;
    border: none;
    background: transparent;
    color: var(--text-muted);
    font-size: 0.8rem;
    font-weight: 500;
    border-radius: var(--radius-sm);
    cursor: pointer;
    min-height: 44px;
    transition: background var(--transition), color var(--transition);
  }
  .tab-btn svg { width: 16px; height: 16px; flex-shrink: 0; }
  .tab-btn.active { background: rgba(243, 128, 32, 0.15); color: var(--cf-orange); }

  .main { padding: 1.25rem 1rem; }

  .field-row { flex-direction: column; }
  .field-row .field:not(:first-child):last-child { flex: 1; }

  .card { padding: 1.1rem; }
  .modal { max-height: 80dvh; }
  .toast-container { bottom: 1rem; right: 1rem; left: 1rem; }
  .toast { max-width: 100%; }
}

/* ── Topbar brand (desktop: hidden) ────────────────────────── */
.topbar-brand { display: flex; align-items: center; gap: 0.5rem; }