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

:root {
  --sidebar-w: 230px;
  --topbar-h: 54px;
  --page-bg: #0d0f14;
  --sidebar-bg: rgba(10,12,18,0.94);
  --card-bg: rgba(18,22,34,0.80);
  --card-bg-hi: rgba(22,27,40,0.85);
  --border: rgba(255,255,255,0.07);
  --border-hi: rgba(255,255,255,0.13);
  --accent: #6B88C8;
  --accent-soft: rgba(107,136,200,0.12);
  --accent-border: rgba(107,136,200,0.22);
  --text: #E8ECF4;
  --text-2: #7A8FA8;
  --text-3: #3D5068;
  --ok: #4ABFA0;
  --ok-soft: rgba(74,191,160,0.10);
  --ok-border: rgba(74,191,160,0.22);
  --warn: #B8A86E;
  --warn-soft: rgba(184,168,110,0.10);
  --warn-border: rgba(184,168,110,0.22);
  --err: #C97070;
  --err-soft: rgba(201,112,112,0.10);
  --err-border: rgba(201,112,112,0.20);
  --r-xl: 14px;
  --r-lg: 12px;
  --r: 10px;
  --r-sm: 7px;
  --r-xs: 5px;
  --shadow: 0 2px 12px rgba(0,0,0,0.35);
  --shadow-lg: 0 4px 24px rgba(0,0,0,0.45);
  color-scheme: dark;
  font-family: 'Inter', system-ui, sans-serif;
}

html, body { height: 100%; font-family: 'Inter', system-ui, sans-serif; font-size: 13px; background: var(--page-bg); color: var(--text); overflow: hidden; }

/* ── Background ── */
body {
  background-color: #060c18;
  background-image: url("./assets/air-cav-background.png");
  background-size: cover;
  background-position: center;
  background-attachment: fixed;
}
body::before {
  content: ""; position: fixed; inset: 0; z-index: 0; pointer-events: none;
  opacity: 0.52; filter: grayscale(0.25) brightness(0.7);
  background: inherit;
}
body::after {
  content: ""; position: fixed; inset: 0; z-index: 0; pointer-events: none;
  background: linear-gradient(to right, rgba(13,15,20,0.88) 0%, rgba(13,15,20,0.62) 40%, rgba(13,15,20,0.70) 100%);
}

/* ── App Shell ── */
#app { position: relative; z-index: 1; display: block; height: 100vh; }

.app-shell { display: flex; height: 100vh; overflow: hidden; position: relative; z-index: 1; }

/* ── Sidebar ── */
.sidebar {
  width: var(--sidebar-w); flex-shrink: 0;
  background: var(--sidebar-bg); border-right: 1px solid var(--border);
  display: flex; flex-direction: column;
  backdrop-filter: blur(20px); -webkit-backdrop-filter: blur(20px);
}
.sidebar-header {
  padding: 20px 16px 18px; border-bottom: 1px solid var(--border);
  display: flex; flex-direction: column; align-items: center; gap: 0;
}
.sidebar-logo-img {
  width: 96%; max-width: 210px; display: block;
  margin: 0 auto 12px;
  opacity: 0.88; filter: brightness(1.1) contrast(1.05);
}
.sidebar-logo-name {
  text-align: center; font-size: 17px; font-weight: 800;
  color: var(--text); letter-spacing: 0.01em; line-height: 1.3;
}
.sidebar-nav { flex: 1; padding: 16px 12px; display: flex; flex-direction: column; gap: 2px; overflow-y: auto; }
.nav-section { margin-bottom: 18px; }
.nav-section-label {
  font-size: 10px; font-weight: 700; letter-spacing: 0.08em; text-transform: uppercase;
  color: var(--text-3); padding: 0 8px; margin-bottom: 4px; display: block;
}
.nav-btn {
  width: 100%; display: flex; align-items: center; gap: 10px;
  padding: 9px 10px; border-radius: var(--r-sm);
  border: 1px solid transparent; background: transparent;
  color: var(--text-2); font-family: inherit; font-size: 13px; font-weight: 500;
  cursor: pointer; text-align: left; transition: all 0.13s;
}
.nav-btn:hover { background: rgba(255,255,255,0.05); color: var(--text); }
.nav-btn.active { background: var(--accent-soft); color: #8BA4C8; border-color: var(--accent-border); font-weight: 600; }
.nav-icon { width: 18px; height: 18px; flex-shrink: 0; opacity: 0.5; }
.nav-btn.active .nav-icon { opacity: 1; }

/* ── Main ── */
.app-main { flex: 1; overflow: hidden; display: flex; flex-direction: column; }

/* ── Topbar ── */
.topbar {
  height: var(--topbar-h); padding: 0 28px; flex-shrink: 0;
  display: flex; align-items: center; justify-content: space-between; gap: 16px;
  background: rgba(13,15,20,0.80); border-bottom: 1px solid var(--border);
  backdrop-filter: blur(16px); -webkit-backdrop-filter: blur(16px);
}
.topbar-left { display: flex; align-items: center; gap: 8px; }
.topbar-crumb { font-size: 13px; color: var(--text-3); }
.topbar-sep { font-size: 13px; color: var(--text-3); opacity: 0.4; }
.topbar-page { font-size: 13px; font-weight: 600; color: var(--text); }
.topbar-right { display: flex; align-items: center; gap: 8px; }
.topbar-badge {
  display: inline-flex; align-items: center; height: 22px; padding: 0 9px;
  border-radius: 20px; font-size: 11px; font-weight: 700; border: 1px solid transparent;
}
.badge-warn { background: var(--warn-soft); color: #DDD0A0; border-color: var(--warn-border); }
.btn-topbar {
  display: inline-flex; align-items: center; height: 30px; padding: 0 12px;
  border-radius: var(--r-sm); border: 1px solid var(--border-hi);
  background: rgba(255,255,255,0.05); color: var(--text-2);
  font-family: inherit; font-size: 11px; font-weight: 600; cursor: pointer;
  transition: all 0.13s;
}
.btn-topbar:hover { background: rgba(255,255,255,0.09); color: var(--text); }

/* ── Content scroll area ── */
.app-content { flex: 1; overflow-y: auto; }

/* ── Workspace ── */
.workspace { padding: 28px 32px; display: flex; flex-direction: column; gap: 20px; }
.workspace-build { }

/* ── Cards ── */
.card, .section, .hero-panel, .list-editor, .packet-action-panel, .row-card,
.empty, .status-tile, .setup-assist, .process-card {
  background: var(--card-bg);
  border: 1px solid var(--border); border-radius: var(--r-xl);
  backdrop-filter: blur(20px); -webkit-backdrop-filter: blur(20px);
  box-shadow: var(--shadow);
}
.section, .process-card { padding: 20px 22px; }

/* ── Buttons ── */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 6px;
  height: 34px; padding: 0 14px; border-radius: var(--r-sm);
  font-family: inherit; font-size: 12px; font-weight: 600; cursor: pointer;
  border: 1px solid var(--border-hi); background: rgba(255,255,255,0.05); color: var(--text-2);
  transition: all 0.13s; white-space: nowrap;
}
.btn:hover { background: rgba(255,255,255,0.09); border-color: var(--border-hi); color: var(--text); }
.btn:disabled { opacity: 0.45; cursor: not-allowed; }
.btn.primary { background: var(--accent); border-color: var(--accent); color: #E8ECF4; font-weight: 700; }
.btn.primary:hover { background: #7A96D4; border-color: #7A96D4; color: #E8ECF4; }
.btn.secondary { background: rgba(255,255,255,0.04); }
.btn.danger { background: var(--err-soft); border-color: var(--err-border); color: #f8a0a0; }
.btn.danger:hover { background: rgba(201,112,112,0.20); }
.btn-row, .btn-row { display: flex; align-items: center; gap: 7px; flex-wrap: wrap; }

/* ── Badges ── */
.badge, .section-tag, .table-badge {
  display: inline-flex; align-items: center; height: 22px; padding: 0 9px;
  border-radius: 20px; font-size: 11px; font-weight: 700; border: 1px solid transparent;
}
.section-tag { background: var(--accent-soft); color: #8BA4C8; border-color: var(--accent-border); }
.section-tag.subtle { background: rgba(255,255,255,0.04); color: var(--text-3); border-color: var(--border); }
.table-badge { background: var(--accent-soft); color: #8BA4C8; border-color: var(--accent-border); }
.table-badge.custom { background: var(--accent-soft); color: #8BA4C8; }

/* ── Status dots ── */
.readiness-item::before, .readiness-panel .readiness-item::before {
  content: ""; width: 7px; height: 7px; border-radius: 50%; flex-shrink: 0;
  display: inline-block; background: var(--text-3);
}
.readiness-item.ok::before  { background: var(--ok); }
.readiness-item.warn::before { background: var(--warn); }
.readiness-item.err::before, .readiness-item.error::before { background: var(--err); }

/* ── Hero panel ── */
.hero-panel {
  display: grid; grid-template-columns: minmax(0,1.3fr) minmax(280px,.95fr); padding: 0;
}
.hero-panel > * { padding: 24px 26px; }
.hero-panel > *:first-child { border-right: 1px solid var(--border); }
.hero-panel::before, .hero-panel::after { display: none; }

.page-kicker { color: var(--accent); font-size: 11px; font-weight: 700; letter-spacing: 0.06em; text-transform: uppercase; display: block; margin-bottom: 6px; }
.title { font-size: 22px; font-weight: 800; letter-spacing: -0.02em; color: var(--text); line-height: 1.15; margin-bottom: 5px; }
.subtitle { font-size: 13px; color: var(--text-2); line-height: 1.55; margin-bottom: 14px; }
.hero-actions { display: flex; align-items: center; gap: 8px; flex-wrap: wrap; }
.hero-stats { display: grid; grid-template-columns: repeat(3,1fr); gap: 10px; }
.hero-stat { padding: 14px 16px; background: rgba(255,255,255,0.03); border: 1px solid var(--border); border-radius: var(--r); display: grid; gap: 4px; }
.hero-stat small { font-size: 10px; font-weight: 700; color: var(--text-3); text-transform: uppercase; letter-spacing: 0.05em; }
.hero-stat strong { font-size: 22px; font-weight: 800; letter-spacing: -0.02em; color: var(--text); }
.hero-stat span { font-size: 11px; color: var(--text-3); }

/* ── Process rail ── */
.process-rail { display: grid; grid-template-columns: repeat(3,1fr); gap: 10px; }
.process-step {
  display: flex; align-items: center; gap: 12px; padding: 14px 16px;
  background: var(--card-bg); border: 1px solid var(--border); border-radius: var(--r);
  box-shadow: var(--shadow); font-size: 13px; font-weight: 600; color: var(--text);
  backdrop-filter: blur(20px);
}
.process-step strong {
  width: 26px; height: 26px; border-radius: 50%;
  background: var(--accent-soft); color: #8BA4C8; border: 1px solid var(--accent-border);
  font-size: 11px; font-weight: 800; display: flex; align-items: center; justify-content: center; flex-shrink: 0;
}

/* ── Build layout ── */
.build-shell { display: grid; grid-template-columns: 1fr 290px; gap: 16px; align-items: start; }
.build-main { display: flex; flex-direction: column; gap: 10px; }

/* ── Step card ── */
.section-head { display: flex; align-items: flex-start; justify-content: space-between; gap: 16px; margin-bottom: 16px; }
.section-head.compact { margin-bottom: 12px; }
.section-kicker { color: var(--accent); font-size: 11px; font-weight: 700; letter-spacing: 0.06em; text-transform: uppercase; display: block; margin-bottom: 3px; }
.section-title { font-size: 15px; font-weight: 700; color: var(--text); }
.section-subtitle { font-size: 13px; color: var(--text-2); margin-top: 2px; }

/* ── Equipment summary ── */
.equipment-summary {
  margin-top: 12px; padding: 13px 15px; border-radius: var(--r-sm);
  background: var(--accent-soft); border: 1px solid var(--accent-border);
  font-size: 13px; color: var(--text-2);
}
.row-note { font-size: 12px; color: var(--text-3); margin-top: 8px; line-height: 1.5; }

/* ── Command / action panel ── */
.command-panel, .packet-action-panel {
  position: sticky; top: 16px; padding: 20px 22px;
  display: flex; flex-direction: column; gap: 12px;
}
.packet-action-panel::before, .packet-action-panel::after { display: none; }
.panel-head { display: flex; align-items: flex-start; justify-content: space-between; gap: 12px; }
.action-title { font-size: 16px; font-weight: 700; color: var(--text); margin-top: 3px; }
.packet-action-panel p { font-size: 12px; color: var(--text-2); line-height: 1.55; }

.selection-snapshot { padding: 12px 14px; background: rgba(255,255,255,0.03); border: 1px solid var(--border); border-radius: var(--r-sm); display: grid; gap: 3px; }
.selection-snapshot small { font-size: 10px; font-weight: 700; color: var(--text-3); text-transform: uppercase; letter-spacing: 0.05em; }
.selection-snapshot strong { font-size: 14px; font-weight: 700; color: var(--text); }
.selection-snapshot span { font-size: 12px; color: var(--text-2); }

.readiness-panel { display: flex; flex-direction: column; gap: 5px; }
.readiness-item { display: flex; align-items: center; gap: 9px; padding: 9px 11px; border-radius: var(--r-sm); border: 1px solid var(--border); background: rgba(255,255,255,0.025); font-size: 12px; }

.include-title { font-size: 11px; font-weight: 700; text-transform: uppercase; letter-spacing: 0.07em; color: var(--text-3); padding-top: 4px; border-top: 1px solid var(--border); }
.packet-includes { display: flex; flex-direction: column; gap: 5px; }
.include-item { display: flex; align-items: center; gap: 9px; padding: 8px 11px; border-radius: var(--r-sm); border: 1px solid var(--border); background: rgba(255,255,255,0.025); }
.include-item.ok   { background: var(--ok-soft);   border-color: var(--ok-border); }
.include-item.warn { background: var(--warn-soft);  border-color: var(--warn-border); }
.include-item.idle { opacity: 0.38; }
.include-item::before { content: ""; width: 6px; height: 6px; border-radius: 50%; flex-shrink: 0; background: var(--text-3); }
.include-item.ok::before   { background: var(--ok); }
.include-item.warn::before { background: var(--warn); }
.include-item strong { font-size: 12px; font-weight: 700; color: var(--text); flex: 1; }
.include-item small { font-size: 10px; color: var(--text-3); text-align: right; }

.submit-feedback { font-size: 11px; color: var(--text-3); text-align: center; }

/* ── Fields ── */
.grid { display: grid; gap: 12px; }
.cols-2 { grid-template-columns: repeat(2,1fr); }
.cols-3 { grid-template-columns: repeat(3,1fr); }
.cols-4 { grid-template-columns: repeat(4,1fr); }
.field { display: flex; flex-direction: column; gap: 5px; }
.field label { font-size: 11px; font-weight: 700; color: var(--text-3); text-transform: uppercase; letter-spacing: 0.06em; }
.field input, .field select, .field textarea {
  height: 36px; padding: 0 12px;
  background: rgba(255,255,255,0.05); border: 1px solid var(--border-hi);
  border-radius: var(--r-sm); font-family: inherit; font-size: 13px; font-weight: 500;
  color: var(--text); appearance: none; transition: all 0.14s;
}
.field input:focus, .field select:focus {
  outline: none; border-color: var(--accent); background: var(--accent-soft);
  box-shadow: 0 0 0 3px rgba(107,136,200,0.14);
}
.field select {
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='10' height='7' fill='none'%3E%3Cpath d='M1 1.5l4 4 4-4' stroke='%233D5068' stroke-width='1.5' stroke-linecap='round' stroke-linejoin='round'/%3E%3C/svg%3E");
  background-repeat: no-repeat; background-position: right 11px center; padding-right: 32px;
}

.field select option {
  background: #111723;
  color: #E8ECF4;
}
.field select option:checked,
.field select option:hover {
  background: #24324A;
  color: #FFFFFF;
}
[data-theme="light"] .field select option {
  background: #FFFFFF;
  color: #0D1117;
}
[data-theme="light"] .field select option:checked,
[data-theme="light"] .field select option:hover {
  background: #E8EEF9;
  color: #0D1117;
}
.field input[type=file] { height: auto; padding: 8px 12px; cursor: pointer; }
.field textarea { height: auto; padding: 10px 12px; min-height: 72px; resize: vertical; }
.form-note, .field-hint { font-size: 11px; color: var(--text-3); margin-top: 3px; line-height: 1.45; }
.checkbox-field { align-content: end; }
.inline-edit { display: flex; align-items: center; gap: 8px; margin-top: 6px; }
.inline-edit label { font-size: 10px; font-weight: 700; color: var(--text-3); text-transform: uppercase; letter-spacing: 0.05em; white-space: nowrap; }
.inline-edit input { background: rgba(255,255,255,0.05); border: 1px solid var(--border-hi); border-radius: var(--r-sm); color: var(--text); font-size: 12px; padding: 3px 8px; min-height: 28px; }

/* ── Settings page ── */
.admin-layout { display: grid; grid-template-columns: 1fr 1fr; gap: 14px; align-items: start; }
.admin-column { display: flex; flex-direction: column; gap: 12px; }
.setup-assist { padding: 20px 22px; }
.setup-assist-head, .panel-head, .view-head { display: flex; align-items: flex-start; justify-content: space-between; gap: 16px; margin-bottom: 14px; }
.section-tag, .eyebrow, .section-kicker, .readiness-title, .include-title { }
.callout { padding: 12px 15px; border-radius: var(--r-sm); margin-bottom: 14px; font-size: 12px; line-height: 1.55; background: var(--accent-soft); border: 1px solid var(--accent-border); color: #8BA4C8; }

/* ── Tables ── */
.table-wrap { overflow-x: auto; border: 1px solid var(--border); border-radius: var(--r-sm); }
table.data { width: 100%; border-collapse: collapse; min-width: 500px; }
table.data th { padding: 9px 14px; text-align: left; font-size: 10px; font-weight: 700; letter-spacing: 0.07em; text-transform: uppercase; color: var(--text-3); background: rgba(255,255,255,0.025); border-bottom: 1px solid var(--border); white-space: nowrap; }
table.data td { padding: 10px 14px; font-size: 12px; border-bottom: 1px solid var(--border); color: var(--text); vertical-align: middle; }
table.data tbody tr:last-child td { border-bottom: none; }
table.data tbody tr:hover td { background: rgba(107,136,200,0.04); }
.table-input { background: transparent; border: 0; border-bottom: 1.5px solid transparent; font-family: inherit; font-size: 12px; color: var(--text); padding: 2px 4px; width: 130px; transition: border-color 0.14s; }
.table-input:hover { border-bottom-color: var(--border-hi); }
.table-input:focus { outline: none; border-bottom-color: var(--accent); }

/* ── Row cards ── */
.list { display: flex; flex-direction: column; gap: 8px; }
.row-card { display: flex; align-items: center; gap: 12px; padding: 12px 15px; flex-direction: row; grid-template-columns: unset; }
.row-card:hover { border-color: var(--border-hi); }
.row-title { font-size: 13px; font-weight: 700; color: var(--text); margin-bottom: 2px; }
.row-meta { font-size: 11px; color: var(--text-3); }

/* ── Chips ── */
.chip-list, .category-chip-list { display: flex; flex-wrap: wrap; gap: 6px; margin-bottom: 10px; }
.chip { display: inline-flex; align-items: center; gap: 5px; height: 26px; padding: 0 10px; background: rgba(255,255,255,0.05); border: 1px solid var(--border); border-radius: 20px; font-size: 12px; font-weight: 500; color: var(--text); }
.chip button { background: none; border: none; cursor: pointer; color: var(--text-3); font-size: 14px; line-height: 1; padding: 0 2px; }
.chip button:hover { color: var(--err); }
.list-add-row { display: grid; grid-template-columns: 1fr auto; gap: 8px; align-items: end; }

/* ── Empty state ── */
.empty { padding: 32px; text-align: center; color: var(--text-2); font-size: 13px; font-weight: 500; }

/* ── Status tiles (data page readiness) ── */
.status-tile { padding: 16px 18px; }
.status-tile span { font-size: 10px; font-weight: 700; color: var(--text-3); text-transform: uppercase; letter-spacing: 0.05em; }
.status-tile strong { font-size: 26px; font-weight: 800; letter-spacing: -0.02em; color: var(--text); display: block; margin-top: 5px; line-height: 1; }
.status-tile small { font-size: 11px; color: var(--text-3); }

/* ── Preview / packet screen ── */
.preview-bar { position: sticky; top: 0; z-index: 20; display: flex; align-items: center; gap: 10px; min-height: 54px; padding: 8px 20px; background: rgba(13,15,20,0.88); border-bottom: 1px solid var(--border); backdrop-filter: blur(16px); }
.preview-title { flex: 1; font-size: 14px; font-weight: 700; color: var(--text); white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.shell { height: 100vh; display: flex; flex-direction: column; overflow: hidden; }
.preview-shell { flex: 1; min-height: 0; overflow-y: auto; padding: 24px; background: var(--page-bg); }
.paper-page { width: min(8.5in, 100%); min-height: 10.6in; margin: 0 auto 18px; padding: 0.42in; background: #fff; color: #0F172A; box-shadow: 0 4px 24px rgba(0,0,0,0.5); border-radius: 4px; }
.simple-cover { display: flex; flex-direction: column; justify-content: center; padding: 0.72in; }
.simple-cover-mark { padding-bottom: 14px; border-bottom: 2px solid #111; font-size: 10px; font-weight: 700; letter-spacing: 2px; text-transform: uppercase; color: #333; }
.simple-cover-body { margin-top: 1.25in; }
.simple-cover-body > span, .simple-cover-details small { display: block; color: #555; font-size: 10px; font-weight: 700; letter-spacing: 1.2px; text-transform: uppercase; margin-bottom: 2px; }
.simple-cover h1 { margin: 8px 0 40px; color: #111; font-size: 32px; font-weight: 700; line-height: 1.06; text-transform: uppercase; }
.simple-cover-details { display: grid; grid-template-columns: repeat(2,1fr); gap: 30px; padding-top: 18px; border-top: 2px solid #111; }
.simple-cover-details strong { display: block; min-height: 26px; margin-top: 6px; color: #111; font-size: 20px; font-weight: 700; text-transform: uppercase; }
.actual-page-only { display: flex; justify-content: center; align-items: center; overflow: hidden; }
.actual-page-only canvas { display: block; max-width: 100%; height: auto; }
.actual-page-placeholder { display: flex; align-items: center; justify-content: center; min-height: 3in; }
.cover-box, .form-box { min-height: 40px; padding: 6px; border: 1px solid #ccc; color: #111; }
.cover-box small, .form-box small { display: block; margin-bottom: 4px; font-size: 8px; font-weight: 700; text-transform: uppercase; color: #777; }
.form-box span { display: block; overflow-wrap: anywhere; }
.preview-loading, .preview-page-note { padding: 8px; color: #333; font-family: monospace; font-size: 10px; letter-spacing: 1px; text-transform: uppercase; }

/* ── Readiness note / equip summary ── */
.readiness-note { padding: 12px 14px; background: rgba(255,255,255,0.03); border: 1px solid var(--border); border-radius: var(--r-sm); font-size: 12px; color: var(--text-2); }

/* ── Side rail (retained for compat) ── */
.side-rail, .side-group, .side-links { display: none; }

/* ── Misc ── */
.divider { height: 1px; background: var(--border); margin: 14px 0; }
.no-print { }
.list-editor { padding: 20px 22px; }


/* Deployment setup cards */
.setup-cards {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 12px;
  align-items: start;
}
.setup-card {
  min-width: 0;
  padding: 16px;
  background: rgba(255,255,255,0.03);
  border: 1px solid var(--border);
  border-radius: var(--r-lg);
}
.setup-card-title {
  margin-bottom: 12px;
  color: var(--text);
  font-size: 13px;
  font-weight: 800;
}
.setup-card .btn-row { margin-top: 12px; }
.setup-card-forms { max-width: 520px; }
.official-form-upload-grid { grid-template-columns: 1fr; }
.field input[type=file] {
  width: 100%;
  max-width: 100%;
  min-height: 48px;
  line-height: 1.4;
}
@media (max-width: 980px) {
  .setup-cards { grid-template-columns: 1fr; }
  .setup-card-forms { max-width: none; }
}

/* ── Responsive ── */
@media (max-width: 1100px) {
  .build-shell { grid-template-columns: 1fr; }
  .command-panel, .packet-action-panel { position: static; }
  .admin-layout { grid-template-columns: 1fr; }
  .hero-panel { grid-template-columns: 1fr; }
  .hero-panel > *:first-child { border-right: none; border-bottom: 1px solid var(--border); }
  .hero-stats { grid-template-columns: repeat(2,1fr); }
  .process-rail { grid-template-columns: 1fr; }
}
@media (max-width: 820px) {
  .sidebar { width: 60px; }
  .sidebar-logo-img, .sidebar-logo-name, .nav-section-label, .nav-btn span:not(.nav-icon) { display: none; }
  .nav-btn { justify-content: center; }
  .workspace { padding: 16px; }
  .cols-2, .cols-3, .cols-4 { grid-template-columns: 1fr; }
  .hero-stats { grid-template-columns: 1fr; }
}
@media print {
  body { background: #fff; }
  .shell { height: auto; display: block; overflow: visible; }
  body::before, body::after, .no-print { display: none !important; }
  .app-shell { display: block; height: auto; }
  .sidebar, .topbar { display: none; }
  .app-content { overflow: visible; }
  .preview-shell { min-height: 0; padding: 0; background: #fff; }
  .paper-page { width: auto; min-height: 0; margin: 0; box-shadow: none; border-radius: 0; page-break-after: always; }
  .paper-page:last-child { page-break-after: auto; }
  @page { size: letter; margin: 0; }
}

/* ── Credit line ── */
.app-credit {
  text-align: center;
  padding: 20px 0 8px;
  margin-top: 8px;
  color: var(--text-2);
  font-size: 12px;
  font-weight: 500;
  letter-spacing: 0.05em;
  border-top: 1px solid var(--border);
}

/* ── Light theme ── */
[data-theme="light"] {
  --page-bg: #f0f2f7;
  --sidebar-bg: rgba(248,250,255,0.97);
  --card-bg: rgba(255,255,255,0.93);
  --card-bg-hi: rgba(248,250,255,0.95);
  --border: rgba(0,0,0,0.09);
  --border-hi: rgba(0,0,0,0.15);
  --accent: #3355BB;
  --accent-soft: rgba(51,85,187,0.08);
  --accent-border: rgba(51,85,187,0.20);
  --text: #0D1117;
  --text-2: #2D3748;
  --text-3: #64748B;
  --ok: #0A7A6A;
  --ok-soft: rgba(10,122,106,0.08);
  --ok-border: rgba(10,122,106,0.22);
  --warn: #7A4F00;
  --warn-soft: rgba(122,79,0,0.08);
  --warn-border: rgba(122,79,0,0.22);
  --err: #991B1B;
  --err-soft: rgba(153,27,27,0.08);
  --err-border: rgba(153,27,27,0.20);
  color-scheme: light;
}

[data-theme="light"] body {
  background-image: url("./assets/air-cav-background.png");
}
[data-theme="light"] body::before {
  filter: grayscale(0.3) brightness(0.85);
  opacity: 0.45;
}
[data-theme="light"] body::after {
  background: linear-gradient(to right, rgba(240,244,252,0.65) 0%, rgba(240,244,252,0.50) 40%, rgba(240,244,252,0.60) 100%);
}
[data-theme="light"] .field input,
[data-theme="light"] .field select,
[data-theme="light"] .field textarea {
  background: #F1F5F9;
  color: var(--text);
}
[data-theme="light"] .topbar {
  background: #FFFFFF;
  backdrop-filter: none;
  -webkit-backdrop-filter: none;
}

/* ── Credit email line ── */
.app-credit-email {
  margin-top: 4px;
  font-size: 11px;
  color: var(--text-2);
}
.app-credit-email a {
  color: var(--accent);
  text-decoration: none;
}
.app-credit-email a:hover {
  text-decoration: underline;
}

/* ── Light theme bug fixes ── */
[data-theme="light"] .sidebar {
  border-right: 1px solid rgba(0,0,0,0.1);
  box-shadow: 2px 0 12px rgba(0,0,0,0.06);
}
[data-theme="light"] .card,
[data-theme="light"] .section,
[data-theme="light"] .hero-panel,
[data-theme="light"] .packet-action-panel,
[data-theme="light"] .row-card,
[data-theme="light"] .status-tile,
[data-theme="light"] .setup-assist,
[data-theme="light"] .process-card,
[data-theme="light"] .list-editor {
  background: #FFFFFF;
  backdrop-filter: none;
  -webkit-backdrop-filter: none;
  box-shadow: 0 1px 4px rgba(0,0,0,0.08), 0 4px 16px rgba(0,0,0,0.05);
  border-color: rgba(0,0,0,0.09);
}
[data-theme="light"] .field input,
[data-theme="light"] .field select,
[data-theme="light"] .field textarea {
  background: #F1F5F9;
  border-color: rgba(0,0,0,0.15);
  color: #0D1117;
}
[data-theme="light"] .field input::placeholder {
  color: #94A3B8;
}
[data-theme="light"] .field input:focus,
[data-theme="light"] .field select:focus {
  background: #fff;
  border-color: var(--accent);
  box-shadow: 0 0 0 3px rgba(68,102,187,0.12);
}
[data-theme="light"] .btn {
  background: #F1F5F9;
  border-color: rgba(0,0,0,0.12);
  color: #475569;
}
[data-theme="light"] .btn:hover {
  background: #E2E8F0;
  color: #0F172A;
}
[data-theme="light"] .btn.primary {
  background: var(--accent);
  border-color: var(--accent);
  color: #fff;
}
[data-theme="light"] .btn.primary:hover {
  background: #3355AA;
  border-color: #3355AA;
}
[data-theme="light"] .topbar {
  background: rgba(255,255,255,0.95);
  border-bottom: 1px solid rgba(0,0,0,0.09);
  box-shadow: 0 1px 4px rgba(0,0,0,0.06);
}
[data-theme="light"] .process-step {
  background: #fff;
  border-color: rgba(0,0,0,0.09);
  box-shadow: 0 1px 4px rgba(0,0,0,0.07);
}
[data-theme="light"] .inc {
  background: rgba(0,0,0,0.02);
  border-color: rgba(0,0,0,0.08);
}
[data-theme="light"] .inc.ok {
  background: var(--ok-soft);
  border-color: var(--ok-border);
}
[data-theme="light"] .inc.warn {
  background: var(--warn-soft);
  border-color: var(--warn-border);
}
[data-theme="light"] .readiness-item {
  background: rgba(0,0,0,0.02);
  border-color: rgba(0,0,0,0.08);
}
[data-theme="light"] .selection-snapshot {
  background: rgba(0,0,0,0.02);
  border-color: rgba(0,0,0,0.08);
}
[data-theme="light"] .include-item {
  background: rgba(0,0,0,0.02);
  border-color: rgba(0,0,0,0.08);
}
[data-theme="light"] .include-item.ok {
  background: var(--ok-soft);
  border-color: var(--ok-border);
}
[data-theme="light"] .include-item.warn {
  background: var(--warn-soft);
  border-color: var(--warn-border);
}
[data-theme="light"] .equipment-summary {
  background: var(--accent-soft);
  border-color: var(--accent-border);
}
[data-theme="light"] .callout {
  background: var(--accent-soft);
  border-color: var(--accent-border);
}
[data-theme="light"] .hero-stat {
  background: #F8FAFC;
  border-color: rgba(0,0,0,0.09);
}
[data-theme="light"] table.data th {
  background: #F8FAFC;
  border-color: rgba(0,0,0,0.09);
  color: #64748B;
}
[data-theme="light"] table.data td {
  border-color: rgba(0,0,0,0.06);
}
[data-theme="light"] .row-card {
  background: #fff;
  border-color: rgba(0,0,0,0.09);
}
[data-theme="light"] .nav-section-label {
  color: #94A3B8;
}
[data-theme="light"] .nav-btn {
  color: #64748B;
}
[data-theme="light"] .nav-btn:hover {
  background: rgba(0,0,0,0.05);
  color: #0F172A;
}
[data-theme="light"] .nav-btn.active {
  background: var(--accent-soft);
  color: var(--accent);
  border-color: var(--accent-border);
}
[data-theme="light"] .sb-name,
[data-theme="light"] .logo-name {
  color: #0F172A;
}
[data-theme="light"] .app-credit {
  color: #64748B;
  border-top-color: rgba(0,0,0,0.08);
}
[data-theme="light"] .app-credit-email {
  color: #94A3B8;
}
[data-theme="light"] .tbl-wrap {
  border-color: rgba(0,0,0,0.09);
}
[data-theme="light"] .r-item {
  background: #F8FAFC;
  border-color: rgba(0,0,0,0.08);
}
[data-theme="light"] .r-item:hover {
  border-color: rgba(0,0,0,0.16);
}
[data-theme="light"] .chip {
  background: #F1F5F9;
  border-color: rgba(0,0,0,0.10);
}
[data-theme="light"] .section-tag {
  background: var(--accent-soft);
  color: var(--accent);
}
[data-theme="light"] .section-tag.subtle {
  background: #F1F5F9;
  color: #94A3B8;
}


/* ── Credit logo ── */
.app-credit-logo {
  display: block;
  width: 132px;
  height: auto;
  margin: 14px auto 0;
  opacity: 0.92;
  filter: drop-shadow(0 2px 8px rgba(0,0,0,0.3));
  transition: opacity 0.2s;
}
.app-credit-logo:hover {
  opacity: 1;
}
[data-theme="light"] .app-credit-logo {
  filter: drop-shadow(0 2px 8px rgba(0,0,0,0.15));
}

/* ── Single-column steps layout for Data & Settings ── */
.steps-layout {
  display: flex;
  flex-direction: column;
  gap: 14px;
  max-width: 1280px;
  margin: 0 auto;
  width: 100%;
}

.admin-hero { grid-template-columns: 1fr; }
.admin-hero > *:first-child { border-right: 0; }

.status-grid-wide { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 14px; max-width: 1280px; margin: 0 auto 14px; width: 100%; }
@media (max-width: 900px) { .status-grid-wide { grid-template-columns: repeat(2, minmax(0, 1fr)); } }
@media (max-width: 560px) { .status-grid-wide { grid-template-columns: 1fr; } }

/* Light theme contrast pass */
[data-theme="light"] {
  --sidebar-bg: #05070B;
  --text-2: #334155;
  --text-3: #475569;
}
[data-theme="light"] body::before {
  filter: grayscale(0.45) brightness(0.58);
  opacity: 0.38;
}
[data-theme="light"] body::after {
  background: linear-gradient(to right, rgba(245,247,252,0.38) 0%, rgba(245,247,252,0.28) 42%, rgba(245,247,252,0.34) 100%);
}
[data-theme="light"] .sidebar {
  background: #05070B;
  border-right-color: rgba(255,255,255,0.12);
  box-shadow: 3px 0 18px rgba(0,0,0,0.28);
}
[data-theme="light"] .sidebar-logo-img {
  opacity: 0.96;
  filter: brightness(1.08) contrast(1.08);
}
[data-theme="light"] .sidebar-logo-name {
  color: #F8FAFC;
}
[data-theme="light"] .nav-section-label {
  color: #6F819A;
}
[data-theme="light"] .nav-btn {
  color: #AEBBD0;
}
[data-theme="light"] .nav-btn:hover {
  background: rgba(255,255,255,0.08);
  color: #FFFFFF;
}
[data-theme="light"] .nav-btn.active {
  background: rgba(79,111,191,0.26);
  color: #FFFFFF;
  border-color: rgba(140,166,230,0.42);
}
[data-theme="light"] .topbar-crumb,
[data-theme="light"] .topbar-sep {
  color: #64748B;
}
[data-theme="light"] .topbar-page,
[data-theme="light"] .title,
[data-theme="light"] .section-title,
[data-theme="light"] .row-title,
[data-theme="light"] .status-tile strong {
  color: #05070B;
}
[data-theme="light"] .subtitle,
[data-theme="light"] .section-subtitle,
[data-theme="light"] .row-note,
[data-theme="light"] .form-note,
[data-theme="light"] .field-hint,
[data-theme="light"] .equipment-summary,
[data-theme="light"] .app-credit,
[data-theme="light"] .app-credit-email {
  color: #334155;
}
[data-theme="light"] .field label,
[data-theme="light"] table.data th,
[data-theme="light"] .status-tile span,
[data-theme="light"] .status-tile small,
[data-theme="light"] .row-meta {
  color: #475569;
}
[data-theme="light"] .app-credit-email a {
  color: #1F4FBF;
}


/* Equipment-first admin workflow */
.workflow-guide {
  border-color: rgba(119, 150, 214, 0.28);
}
.workflow-steps {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 12px;
}
.workflow-step {
  min-height: 104px;
  padding: 14px;
  border: 1px solid var(--border);
  border-radius: var(--r);
  background: rgba(255,255,255,0.035);
  color: var(--text);
  font: inherit;
  text-align: left;
  cursor: pointer;
  display: grid;
  grid-template-columns: auto 1fr;
  grid-template-rows: auto 1fr;
  column-gap: 10px;
  row-gap: 4px;
  transition: all 0.13s;
}
.workflow-step:hover {
  border-color: var(--accent-border);
  background: rgba(107,136,200,0.12);
}
.workflow-step strong {
  width: 28px;
  height: 28px;
  border-radius: 50%;
  display: inline-grid;
  place-items: center;
  background: var(--accent);
  color: white;
  font-size: 13px;
  font-weight: 800;
  grid-row: 1 / span 2;
}
.workflow-step span {
  font-size: 14px;
  font-weight: 800;
}
.workflow-step small {
  color: var(--text-2);
  font-size: 12px;
  line-height: 1.4;
}
.optional-template-section {
  margin-top: 18px;
  border-style: dashed;
}
.inline-check {
  display: flex;
  align-items: center;
  gap: 10px;
}
.inline-check input {
  width: 18px;
  height: 18px;
}
.inline-check label {
  margin: 0;
  color: var(--text-2);
  text-transform: none;
  letter-spacing: 0;
  font-size: 12px;
}
[data-theme="light"] .workflow-step {
  background: rgba(255,255,255,0.82);
  border-color: rgba(15,23,42,0.14);
}
[data-theme="light"] .workflow-step:hover {
  background: #EFF4FF;
  border-color: #9DB2E8;
}
@media (max-width: 900px) {
  .workflow-steps { grid-template-columns: 1fr; }
}

/* PDF Library edit state */
.row-card.is-editing {
  border-color: var(--accent-border);
  background: rgba(107,136,200,0.10);
}
[data-theme="light"] .row-card.is-editing {
  border-color: #8EA7E2;
  background: #EFF4FF;
}