.platform-screen { display: grid; gap: 18px; }
.platform-stats { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 14px; }
.platform-stat { min-width: 0; padding: 18px 20px; border: 1px solid var(--line); border-radius: var(--radius-lg); background: var(--surface); box-shadow: var(--shadow-xs); }
.platform-stat.gold { border-color: var(--gold-line); background: linear-gradient(180deg, var(--gold-soft), var(--surface)); }
.platform-stat .label { color: var(--ink-2); font-size: .78rem; font-weight: 600; }
.platform-stat .value { margin-top: 6px; overflow-wrap: anywhere; color: var(--ink); font-family: var(--font-mono); font-size: clamp(1.55rem, 3vw, 2rem); font-weight: 600; line-height: 1; }
.platform-stat.gold .value { color: var(--gold); }
.platform-stat .hint { margin-top: 7px; color: var(--ink-3); font-size: .72rem; }
.platform-toolbar { display: flex; flex-wrap: wrap; align-items: center; gap: 8px; }
.platform-table { overflow: auto; border: 1px solid var(--line); border-radius: var(--radius-lg); background: var(--surface); box-shadow: var(--shadow-xs); }
.platform-table .table { min-width: 720px; }
.platform-empty { padding: 54px 24px; text-align: center; color: var(--ink-2); }
/* --gold (deep, theme-aware) not --gold-bright: bright gold fails WCAG AA on the
   light surface (~2.1:1); --gold is ~6.5:1 on paper and stays bright on dark. */
.platform-empty i { display: block; margin-bottom: 12px; color: var(--gold); font-size: 2rem; }
.platform-form-panel { border: 1px solid var(--line); border-radius: var(--radius-lg); background: var(--surface); box-shadow: var(--shadow-xs); }
.platform-form-panel > summary { padding: 15px 18px; cursor: pointer; color: var(--ink); font-weight: 650; list-style: none; }
.platform-form-panel > summary::-webkit-details-marker { display: none; }
.platform-form-panel > summary::after { content: '+'; float: right; color: var(--blue); font-family: var(--font-mono); }
.platform-form-panel[open] > summary::after { content: '−'; }
.platform-form-panel form { display: grid; gap: 14px; padding: 0 18px 18px; border-top: 1px solid var(--line); }
.platform-form-grid { display: grid; grid-template-columns: repeat(2, minmax(0,1fr)); gap: 14px; padding-top: 16px; }
.platform-card-grid { display: grid; grid-template-columns: repeat(3, minmax(0,1fr)); gap: 14px; }
.platform-item { display: flex; min-width: 0; flex-direction: column; gap: 8px; padding: 18px; border: 1px solid var(--line); border-radius: var(--radius-lg); background: var(--surface); box-shadow: var(--shadow-xs); }
.platform-item h2 { overflow-wrap: anywhere; font-size: 1.05rem; }
.platform-item .meta { color: var(--ink-3); font-size: .75rem; }
.platform-item .item-actions { display: flex; flex-wrap: wrap; gap: 7px; margin-top: auto; padding-top: 8px; }
.score { display: inline-flex; align-items: center; justify-content: center; width: 40px; height: 40px; border-radius: 50%; color: #fff; background: var(--blue); font-family: var(--font-mono); font-size: .78rem; font-weight: 700; }
.compliance-note { padding: 14px 16px; border: 1px solid var(--gold-line); border-radius: var(--radius); color: var(--ink-2); background: var(--gold-soft); font-size: .8rem; }
.progress-civic { height: 9px; overflow: hidden; border-radius: 99px; background: var(--surface-3); }
.progress-civic > span { display: block; height: 100%; border-radius: inherit; background: linear-gradient(90deg,var(--blue),#5a6cf0); }
.platform-split { display: grid; grid-template-columns: minmax(0,1.65fr) minmax(280px,.85fr); gap: 16px; align-items: start; }
.platform-panel { padding: 18px; border: 1px solid var(--line); border-radius: var(--radius-lg); background: var(--surface); box-shadow: var(--shadow-xs); }
.platform-panel h2 { margin-bottom: 12px; font-size: 1.05rem; }
.signal-bars { display: grid; gap: 10px; }
.signal-row { display: grid; grid-template-columns: minmax(110px,.6fr) minmax(120px,1fr) auto; gap: 10px; align-items: center; font-size: .78rem; }
.signal-track { height: 8px; overflow: hidden; border-radius: 99px; background: var(--surface-3); }
.signal-track i { display: block; height: 100%; border-radius: inherit; background: linear-gradient(90deg,var(--blue),var(--gold-bright)); }
.factor-grid { display: grid; grid-template-columns: repeat(5,minmax(0,1fr)); gap: 9px; }
.factor { padding: 12px; border: 1px solid var(--line); border-radius: var(--radius); background: var(--surface-2); }
.factor b { display: block; color: var(--blue); font-family: var(--font-mono); }
.factor span { color: var(--ink-3); font-size: .7rem; }
.checklist { display: grid; gap: 8px; margin: 0; padding: 0; list-style: none; }
.checklist li { display: flex; gap: 9px; align-items: flex-start; padding: 10px 12px; border: 1px solid var(--line); border-radius: var(--radius); background: var(--surface-2); font-size: .8rem; }
.checklist i { margin-top: 2px; color: var(--success); }
.analysis-option { display: grid; grid-template-columns: minmax(100px,1fr) 2fr auto; gap: 10px; align-items: center; margin-top: 8px; font-size: .78rem; }
@media (max-width: 1100px) { .platform-stats { grid-template-columns: repeat(2,minmax(0,1fr)); } .platform-card-grid { grid-template-columns: repeat(2,minmax(0,1fr)); } }
@media (max-width: 900px) { .platform-split { grid-template-columns: 1fr; } .factor-grid { grid-template-columns: repeat(2,minmax(0,1fr)); } }
@media (max-width: 680px) { .platform-stats, .platform-card-grid, .platform-form-grid { grid-template-columns: 1fr; } .factor-grid { grid-template-columns: 1fr; } }