:root{color-scheme:light;font-family:Inter,ui-sans-serif,system-ui,-apple-system,BlinkMacSystemFont,Segoe UI,sans-serif;background:#f5f7fb;color:#1f2937;line-height:1.5}*{box-sizing:border-box}body{margin:0;background:#f5f7fb;color:#1f2937}a{color:inherit;text-decoration:none}button,input,textarea,select{font:inherit}button{cursor:pointer}.app-shell{min-height:100vh}.topbar{position:sticky;top:0;z-index:10;display:flex;align-items:center;justify-content:space-between;gap:16px;padding:18px 24px;background:#fffffff5;border-bottom:1px solid #e5e7eb;-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px)}.brand{font-size:1.15rem;font-weight:800;color:#0f172a}.nav{display:flex;gap:10px;flex-wrap:wrap}.nav-link{padding:10px 12px;border-radius:8px;color:#475569}.nav-link.active{background:#e0e7ff;color:#312e81}.topbar-actions{display:flex;align-items:center;gap:12px}.user-pill{padding:8px 12px;border-radius:999px;background:#f1f5f9;color:#334155}.page-shell{max-width:1220px;margin:0 auto;padding:24px}.stack-xl{display:grid;gap:24px}.stack-md{display:grid;gap:16px}.card,.state-card,.empty-state,.stat-card{background:#fff;border:1px solid #e5e7eb;border-radius:8px;padding:20px}.wide-card{max-width:980px}.hero{display:grid;grid-template-columns:1.2fr .8fr;gap:24px;align-items:stretch}.hero-copy,.hero-panel{background:#fff;border:1px solid #e5e7eb;border-radius:8px;padding:28px}.hero h1{font-size:clamp(2rem,4vw,3.3rem);line-height:1.1;margin:0 0 12px;color:#0f172a}.eyebrow{display:inline-block;margin-bottom:12px;color:#1d4ed8;font-weight:700}.hero-panel{display:grid;gap:14px}.mini-card{padding:16px;border-radius:8px;background:#f8fafc;border:1px solid #e2e8f0}.button-row{display:flex;flex-wrap:wrap;gap:12px}.primary-button,.secondary-button,.ghost-button{padding:11px 16px;border-radius:8px;border:1px solid transparent}.primary-button{background:#2563eb;color:#fff}.secondary-button{background:#eef2ff;color:#3730a3}.ghost-button{background:transparent;color:#475569;border-color:#cbd5e1}.section-heading h2,.section-heading h3,.card h2,.card h3{margin:0 0 8px}.section-heading p,.card p{margin:0;color:#64748b}.section-row{display:flex;justify-content:space-between;align-items:start;gap:16px}.stats-grid{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:16px}.stat-card{display:grid;gap:8px}.stat-label,.stat-helper{color:#64748b}.stat-value{font-size:1.9rem;color:#0f172a}.form-grid{display:grid;gap:16px;margin-top:18px}.two-col{grid-template-columns:repeat(2,minmax(0,1fr))}.three-col{grid-template-columns:repeat(3,minmax(0,1fr));align-items:end}.field{display:grid;gap:8px}.field-label{font-weight:600;color:#334155}.field-hint{color:#64748b}input,textarea,select{width:100%;padding:12px 14px;border-radius:8px;border:1px solid #cbd5e1;background:#fff}textarea{resize:vertical}.auth-grid,.dashboard-grid,.messages-layout{display:grid;gap:24px}.dashboard-grid{grid-template-columns:1fr 1fr}.messages-layout{grid-template-columns:320px 1fr}.segmented{display:inline-flex;padding:4px;border-radius:8px;background:#eef2f7;margin:16px 0 4px}.segmented button{padding:10px 14px;border:0;background:transparent;border-radius:6px}.segmented-active{background:#fff!important;box-shadow:0 1px 3px #0f172a1f}.list-grid{display:grid;gap:14px;margin-top:16px}.compact{gap:10px}.list-card,.conversation-card{display:grid;gap:6px;width:100%;text-align:left;padding:16px;border-radius:8px;border:1px solid #e5e7eb;background:#fff}.conversation-active{border-color:#2563eb;background:#eff6ff}.machine-card{display:grid;grid-template-columns:220px 1fr;background:#fff;border:1px solid #e5e7eb;border-radius:8px;overflow:hidden}.machine-image{min-height:180px;background:#e2e8f0;display:grid;place-items:center}.machine-image img{width:100%;height:100%;object-fit:cover}.machine-body{padding:18px;display:grid;gap:10px}.supplier-strip{display:flex;justify-content:space-between;align-items:center;gap:12px}.price-tag{padding:8px 12px;border-radius:999px;background:#dcfce7;color:#166534;font-weight:700}.status{width:fit-content;padding:6px 10px;border-radius:999px;font-size:.85rem;background:#e2e8f0;color:#334155;text-transform:capitalize}.status.open,.status.approved,.status.accepted,.status.completed,.status.customer{background:#dcfce7;color:#166534}.status.quoted,.status.pending,.status.pending_approval,.status.supplier{background:#fef3c7;color:#92400e}.status.confirmed,.status.admin{background:#dbeafe;color:#1d4ed8}.status.rejected,.status.cancelled{background:#fee2e2;color:#b91c1c}.success-banner,.error-banner{margin-top:16px;padding:12px 14px;border-radius:8px}.success-banner{background:#ecfdf5;color:#166534}.error-banner{background:#fef2f2;color:#b91c1c}.empty-state{text-align:center;color:#64748b}.message-thread{display:grid;gap:12px;max-height:420px;overflow:auto;padding:8px 0 16px}.message-bubble{padding:14px;border-radius:8px;background:#f8fafc;border:1px solid #e2e8f0}.message-bubble p{margin:6px 0 0;color:#0f172a}.message-form{display:grid;grid-template-columns:1fr auto;gap:12px;margin-top:16px}.review-box{display:grid;gap:10px}@media (max-width: 900px){.hero,.dashboard-grid,.messages-layout,.machine-card,.stats-grid,.two-col,.three-col{grid-template-columns:1fr}.topbar{flex-direction:column;align-items:stretch}.nav,.topbar-actions{justify-content:space-between}.supplier-strip,.section-row{flex-direction:column;align-items:stretch}}
