/* ── Reset & Base ─────────────────────────────────────────────── */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

:root {
  --blue-bright: #20c4f4;
  --blue-mid:    #008dd2;
  --ink:         #1A1A1A;
  --ink-soft:    #4A5568;
  --ink-muted:   #8A9BB0;
  --border:      #C8E8F8;
  --surface:     #FFFFFF;
  --surface-2:   #F0F8FD;
  --blue-pale:   #E6F6FD;
  --sidebar-w:   220px;
  --radius:      8px;
}

html, body { height: 100%; font-family: 'DM Sans', sans-serif; background: var(--surface-2); color: var(--ink); font-size: 14px; line-height: 1.5; }
.app { display: flex; height: 100vh; overflow: hidden; }

/* Sidebar */
.sidebar { width: var(--sidebar-w); background: #0d1117; display: flex; flex-direction: column; flex-shrink: 0; }
.sidebar-logo { padding: 18px 14px 14px; border-bottom: 1px solid rgba(255,255,255,.06); display: flex; align-items: center; justify-content: center; }
.sidebar-logo svg { width: 52px; height: 52px; display: block; }
.sidebar-divider { height: 1px; background: linear-gradient(90deg, rgba(32,196,244,.2), transparent); margin: 0 14px; }
.sidebar-nav { flex: 1; padding: 12px 8px; display: flex; flex-direction: column; gap: 2px; }
.nav-label { font-size: 9.5px; font-weight: 600; letter-spacing: .12em; text-transform: uppercase; color: rgba(255,255,255,.2); padding: 10px 10px 5px; }
.nav-item { display: flex; align-items: center; gap: 9px; padding: 9px 12px; border-radius: 6px; color: rgba(255,255,255,.45); text-decoration: none; font-size: 13px; font-weight: 400; transition: background .15s, color .15s; border: none; background: none; width: 100%; text-align: left; cursor: pointer; }
.nav-item:hover { background: rgba(255,255,255,.05); color: rgba(255,255,255,.75); }
.nav-item.active { background: rgba(0,141,210,.25); color: #fff; font-weight: 500; border-left: 2px solid var(--blue-bright); padding-left: 10px; }
.nav-icon { width: 15px; height: 15px; flex-shrink: 0; opacity: .6; }
.nav-item.active .nav-icon { opacity: 1; }
.sidebar-footer { padding: 12px 14px; border-top: 1px solid rgba(255,255,255,.05); }
.sidebar-url { font-family: 'DM Mono', monospace; font-size: 9.5px; color: rgba(255,255,255,.2); display: block; }

/* Main */
.main { flex: 1; display: flex; flex-direction: column; overflow: hidden; min-width: 0; }

/* Header */
.page-header { background: var(--surface); border-bottom: 1px solid var(--border); padding: 18px 28px; display: flex; align-items: center; justify-content: space-between; flex-shrink: 0; }
.page-header h1 { font-size: 18px; font-weight: 600; color: var(--ink); letter-spacing: -.01em; }
.page-subtitle { font-size: 12.5px; color: var(--ink-muted); margin-top: 2px; }
.header-badge { display: flex; align-items: center; gap: 7px; font-size: 11.5px; font-weight: 500; color: var(--blue-mid); background: var(--blue-pale); border: 1px solid var(--border); padding: 5px 12px; border-radius: 20px; }
.badge-dot { width: 7px; height: 7px; border-radius: 50%; background: #aaa; transition: background .3s; }
.header-badge.connected .badge-dot { background: #22c55e; }
.header-badge.error .badge-dot { background: #ef4444; }

/* Tabs */
.mode-tabs { display: flex; padding: 0 28px; background: var(--surface); border-bottom: 2px solid var(--border); flex-shrink: 0; }
.mode-tab { display: flex; align-items: center; gap: 7px; padding: 10px 16px; background: none; border: none; border-bottom: 2px solid transparent; margin-bottom: -2px; font-family: 'DM Sans', sans-serif; font-size: 13px; font-weight: 500; color: var(--ink-muted); cursor: pointer; transition: color .15s, border-color .15s; }
.mode-tab:hover { color: var(--ink-soft); }
.mode-tab.active { color: var(--blue-mid); border-bottom-color: var(--blue-bright); }

/* Panels */
.panel { background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius); overflow: hidden; margin: 20px 28px 0; flex-shrink: 0; }
section.panel { overflow-y: auto; flex: 1; margin-bottom: 70px; }
.panel-head { padding: 14px 18px; border-bottom: 1px solid var(--border); display: flex; align-items: center; gap: 10px; background: linear-gradient(135deg, var(--blue-pale) 0%, var(--surface) 70%); }
.panel-head-icon { width: 30px; height: 30px; background: var(--blue-mid); border-radius: 6px; display: flex; align-items: center; justify-content: center; flex-shrink: 0; }
.panel-head h2 { font-size: 13.5px; font-weight: 600; color: var(--ink); }
.panel-head p { font-size: 12px; color: var(--ink-muted); margin-top: 1px; }
.panel-body { padding: 18px; }

/* Fields */
.field-row { display: flex; gap: 12px; align-items: flex-end; flex-wrap: wrap; }
.field-group { display: flex; flex-direction: column; gap: 5px; }
.field-group.flex-1 { flex: 1; min-width: 160px; }
.field-label { font-size: 11px; font-weight: 600; color: var(--ink-soft); text-transform: uppercase; letter-spacing: .06em; }
.optional { font-weight: 400; color: var(--ink-muted); text-transform: none; letter-spacing: 0; font-size: 10.5px; }
.required { color: #ef4444; }
.field-input { height: 38px; padding: 0 11px; border: 1.5px solid var(--border); border-radius: 6px; font-family: 'DM Sans', sans-serif; font-size: 13.5px; color: var(--ink); background: var(--surface); outline: none; transition: border-color .15s, box-shadow .15s; }
.field-input:focus { border-color: var(--blue-bright); box-shadow: 0 0 0 3px rgba(32,196,244,.15); }
.field-input::placeholder { color: var(--ink-muted); }
.radio-group { display: flex; gap: 16px; }
.radio-option { display: flex; align-items: center; gap: 7px; cursor: pointer; font-size: 13.5px; color: var(--ink-soft); user-select: none; }
.radio-option input[type="radio"] { accent-color: var(--blue-mid); width: 15px; height: 15px; cursor: pointer; }
.radio-option:has(input:checked) { color: var(--ink); font-weight: 500; }

/* Buttons */
.btn-primary { display: inline-flex; align-items: center; gap: 7px; height: 38px; padding: 0 16px; background: var(--blue-mid); color: #fff; border: none; border-radius: 6px; font-family: 'DM Sans', sans-serif; font-size: 13.5px; font-weight: 500; cursor: pointer; white-space: nowrap; transition: background .15s; }
.btn-primary:hover { background: #006fab; }
.btn-primary:disabled { background: var(--border); color: var(--ink-muted); cursor: not-allowed; }
.btn-ghost { display: inline-flex; align-items: center; gap: 6px; height: 30px; padding: 0 10px; background: none; color: var(--ink-soft); border: 1.5px solid var(--border); border-radius: 6px; font-family: 'DM Sans', sans-serif; font-size: 12px; font-weight: 500; cursor: pointer; transition: all .15s; }
.btn-ghost:hover { border-color: var(--blue-bright); color: var(--blue-mid); background: var(--blue-pale); }
.btn-sm { height: 27px; font-size: 11.5px; padding: 0 9px; }
.btn-add-row { display: flex; align-items: center; justify-content: center; gap: 7px; width: 100%; margin-top: 10px; height: 36px; background: none; border: 1.5px dashed var(--border); border-radius: 6px; font-family: 'DM Sans', sans-serif; font-size: 13px; font-weight: 500; color: var(--ink-muted); cursor: pointer; transition: all .15s; }
.btn-add-row:hover { border-color: var(--blue-bright); color: var(--blue-mid); background: var(--blue-pale); }
.btn-del-row { background: none; border: none; color: var(--ink-muted); cursor: pointer; padding: 4px; border-radius: 4px; display: flex; align-items: center; justify-content: center; transition: color .15s, background .15s; }
.btn-del-row:hover { color: #ef4444; background: #fff0f0; }

/* Result bar */
.result-bar { display: flex; align-items: center; justify-content: space-between; padding: 11px 18px; background: var(--blue-pale); border-top: 1px solid var(--border); border-bottom: 1px solid var(--border); flex-wrap: wrap; gap: 10px; }
.result-bar-left { display: flex; align-items: center; gap: 10px; }
.result-chip { font-size: 9.5px; font-weight: 700; letter-spacing: .1em; text-transform: uppercase; background: var(--blue-mid); color: #fff; padding: 3px 8px; border-radius: 4px; }
.result-title { font-weight: 600; font-size: 13.5px; color: var(--ink); }
.result-sub { font-size: 12px; color: var(--ink-muted); }
.result-bar-right { display: flex; align-items: center; gap: 8px; }
.count-pill { font-family: 'DM Mono', monospace; font-size: 11px; font-weight: 500; color: var(--blue-mid); background: #cceeff; padding: 3px 9px; border-radius: 10px; }

/* Table */
.table-wrap { overflow-x: auto; }
.data-table { width: 100%; border-collapse: collapse; font-size: 13px; }
.data-table thead th { padding: 9px 14px; text-align: left; font-size: 10.5px; font-weight: 600; text-transform: uppercase; letter-spacing: .07em; color: var(--ink-muted); background: #f7fbfe; border-bottom: 1px solid var(--border); }
.data-table tbody tr { border-bottom: 1px solid #eef5fb; transition: background .1s; }
.data-table tbody tr:last-child { border-bottom: none; }
.data-table tbody tr:hover { background: #f0f9ff; }
.data-table tbody tr.row-selected { background: var(--blue-pale); }
.data-table td { padding: 9px 14px; color: var(--ink-soft); vertical-align: middle; }
.td-name { font-weight: 500; color: var(--ink) !important; }
.td-id { font-family: 'DM Mono', monospace; font-size: 12px; color: var(--ink-muted) !important; }
.data-table input[type="checkbox"] { accent-color: var(--blue-mid); width: 15px; height: 15px; cursor: pointer; }
.inline-input { width: 100%; height: 30px; padding: 0 8px; border: 1.5px solid transparent; border-radius: 4px; font-family: 'DM Sans', sans-serif; font-size: 13px; background: transparent; color: var(--ink); outline: none; transition: border-color .15s, background .15s; }
.inline-input:focus { border-color: var(--blue-bright); background: var(--surface); box-shadow: 0 0 0 2px rgba(32,196,244,.1); }
.inline-input::placeholder { color: #b8cdd8; font-style: italic; }

/* State messages */
.state-msg { display: flex; flex-direction: column; align-items: center; gap: 10px; padding: 40px 20px; color: var(--ink-muted); text-align: center; font-size: 13px; }
.state-msg.error { color: #dc2626; }

/* Generate bar */
.generate-bar { position: fixed; bottom: 0; left: var(--sidebar-w); right: 0; background: var(--surface); border-top: 2px solid var(--border); padding: 12px 28px; display: flex; align-items: center; justify-content: space-between; box-shadow: 0 -4px 20px rgba(0,141,210,.08); z-index: 100; }
.generate-summary { font-size: 13px; color: var(--ink-soft); }
.generate-summary strong { color: var(--ink); }
.generate-summary .warn { color: #dc2626; }
.btn-generate { display: inline-flex; align-items: center; gap: 8px; height: 42px; padding: 0 24px; background: linear-gradient(135deg, var(--blue-bright) 0%, var(--blue-mid) 100%); color: #fff; border: none; border-radius: 7px; font-family: 'DM Sans', sans-serif; font-size: 13.5px; font-weight: 600; cursor: pointer; box-shadow: 0 2px 10px rgba(0,141,210,.35); transition: transform .1s, box-shadow .1s; }
.btn-generate:hover:not(:disabled) { transform: translateY(-1px); box-shadow: 0 4px 16px rgba(0,141,210,.45); }
.btn-generate:disabled { background: var(--border); color: var(--ink-muted); box-shadow: none; cursor: not-allowed; transform: none; }

/* Spinner */
.spinner { width: 14px; height: 14px; border: 2px solid rgba(255,255,255,.3); border-top-color: #fff; border-radius: 50%; animation: spin .7s linear infinite; display: inline-block; }
@keyframes spin { to { transform: rotate(360deg); } }

/* Toast */
.toast-container { position: fixed; bottom: 70px; right: 20px; display: flex; flex-direction: column; gap: 8px; z-index: 200; }
.toast { display: flex; align-items: center; gap: 10px; padding: 11px 14px; border-radius: 7px; font-size: 13px; box-shadow: 0 4px 16px rgba(0,0,0,.15); animation: toastIn .2s ease; max-width: 320px; color: #fff; }
.toast.success { background: #166534; }
.toast.error { background: #991b1b; }
.toast.info { background: var(--blue-mid); }
@keyframes toastIn { from { transform: translateX(20px); opacity: 0; } to { transform: none; opacity: 1; } }

.hidden { display: none !important; }
::-webkit-scrollbar { width: 5px; height: 5px; }
::-webkit-scrollbar-track { background: transparent; }
::-webkit-scrollbar-thumb { background: var(--border); border-radius: 3px; }
::-webkit-scrollbar-thumb:hover { background: var(--blue-bright); }