/* USA Living Guide — Design System v2026 */
*{box-sizing:border-box;margin:0;padding:0}
body{font-family:'Inter','Segoe UI',Arial,sans-serif;background:#f0f4ff;color:#1e293b;line-height:1.6}
.hero{background:linear-gradient(135deg,#1e3a8a,#3b82f6);color:#fff;padding:40px 20px;text-align:center;isolation:isolate}
.hero h1{font-size:2.2em;font-weight:800;margin-bottom:10px;cursor:pointer}

/* ── Landing Sections ─── */
.landing-stats{background:#fff;border-bottom:1px solid #e2e8f0;box-shadow:0 2px 10px rgba(0,0,0,.04)}
.landing-stats-inner{max-width:900px;margin:0 auto;display:flex;justify-content:center;align-items:center;padding:20px;flex-wrap:wrap;gap:12px}
.ls-item{text-align:center;padding:0 24px}
.ls-val{display:block;font-size:20px;font-weight:800;color:#1e3a8a}
.ls-lbl{display:block;font-size:11px;color:#64748b;text-transform:uppercase;letter-spacing:.5px;margin-top:2px}
.ls-div{width:1px;height:32px;background:#e2e8f0}
.landing-section{max-width:900px;margin:0 auto;padding:60px 20px}
.landing-trust{background:#f8fafc;padding:60px 20px;border-top:1px solid #e2e8f0;border-bottom:1px solid #e2e8f0}
.landing-inner{max-width:900px;margin:0 auto}
.ls-eyebrow{display:inline-block;font-size:12px;font-weight:700;color:#3b82f6;text-transform:uppercase;letter-spacing:1.5px;margin-bottom:8px}
.ls-title{font-size:28px;font-weight:800;color:#0f172a;margin-bottom:10px;text-align:center}
.ls-subtitle{font-size:15px;color:#64748b;max-width:500px;margin:0 auto 36px;text-align:center;line-height:1.6}
.ls-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(220px,1fr));gap:20px}
.ls-card{background:#fff;border-radius:14px;padding:28px 20px;text-align:center;box-shadow:0 2px 12px rgba(0,0,0,.06);border:1px solid #f1f5f9;position:relative;transition:all .2s}
.ls-card:hover{box-shadow:0 8px 24px rgba(0,0,0,.1);transform:translateY(-3px)}
.ls-num{position:absolute;top:-10px;right:14px;width:24px;height:24px;border-radius:50%;background:#1e3a8a;color:#fff;font-size:12px;font-weight:800;display:flex;align-items:center;justify-content:center}
.ls-icon{font-size:36px;margin-bottom:8px}
.ls-card h3{font-size:16px;font-weight:700;color:#0f172a;margin-bottom:6px}
.ls-card p{font-size:13px;color:#64748b;line-height:1.6}
.trust-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(220px,1fr));gap:16px;margin-top:24px}
.trust-item{display:flex;gap:12px;align-items:flex-start;font-size:14px;color:#334155;line-height:1.5;background:#fff;padding:16px;border-radius:12px;border:1px solid #e2e8f0}
.trust-icon{font-size:24px;flex-shrink:0}
.landing-cta{background:linear-gradient(135deg,#1e3a8a,#7c3aed);color:#fff;padding:48px 20px;text-align:center}
.landing-cta h2{font-size:26px;font-weight:800;margin-bottom:8px}
.landing-cta p{font-size:15px;color:#c7d2fe;line-height:1.6}
@media(max-width:600px){.ls-div{display:none}.ls-grid{grid-template-columns:1fr}.trust-grid{grid-template-columns:1fr}}
.hero p{font-size:1.1em;opacity:.9;max-width:600px;margin:0 auto 16px}
.hero-desc{font-size:1em;opacity:.85;max-width:620px;margin:0 auto 18px;line-height:1.6}
.steps{display:flex;justify-content:center;flex-wrap:wrap;gap:10px;margin-top:12px;pointer-events:none}
.step{background:rgba(255,255,255,.15);border:1px solid rgba(255,255,255,.3);border-radius:20px;padding:6px 16px;font-size:.9em;pointer-events:none}
.container{max-width:900px;margin:0 auto;padding:20px}
.tabs{display:grid;grid-template-columns:repeat(auto-fit,minmax(72px,1fr));gap:8px;margin:24px 0;position:relative;z-index:10}
.tabs button{background:#fff;border:2px solid #e2e8f0;padding:12px 8px;border-radius:12px;cursor:pointer;font-size:12px;font-weight:600;color:#1e293b;transition:all .2s;display:flex;flex-direction:column;align-items:center;gap:4px;min-height:44px;position:relative;z-index:1}
.tabs button i{font-size:1.4em;color:#3b82f6}
.tabs button.active{background:#1e3a8a;color:#fff;border-color:#3b82f6}
.tabs button.active i{color:#fff}
.tabs button:hover:not(.active){background:#f0f4ff;transform:translateY(-2px)}
.tab{display:none}
.tab.active{display:block;animation:fadeIn .4s;position:relative;z-index:1}
@keyframes fadeIn{from{opacity:0;transform:translateY(12px)}to{opacity:1;transform:translateY(0)}}
.card{background:#fff;border-radius:16px;padding:28px;box-shadow:0 4px 20px rgba(0,0,0,.08)}
.card h2{color:#1e3a8a;font-size:1.5em;margin-bottom:12px;display:flex;align-items:center;gap:10px}
.hint{background:#f0f9ff;border-left:4px solid #3b82f6;padding:14px 16px;border-radius:0 10px 10px 0;margin-bottom:20px;font-size:.9em;color:#0f4c75}
.form-row{display:grid;grid-template-columns:1fr 1fr;gap:16px;margin-bottom:16px}
@media(max-width:500px){.form-row{grid-template-columns:1fr}}
.field{display:flex;flex-direction:column;gap:6px;margin-bottom:12px}
label{font-weight:600;font-size:.9em;color:#334155}
input,select,textarea{padding:12px 14px;border:2px solid #e2e8f0;border-radius:10px;font-size:15px;transition:border .2s;background:#fafbfc;width:100%}
input:focus,select:focus,textarea:focus{border-color:#3b82f6;outline:none;background:#fff}
textarea{resize:vertical;min-height:90px}
.btn{background:linear-gradient(135deg,#1e3a8a,#3b82f6);color:#fff;border:none;padding:14px;width:100%;border-radius:12px;font-size:15px;font-weight:700;cursor:pointer;margin:16px 0 8px;box-shadow:0 4px 15px rgba(30,64,175,.3);transition:all .2s;position:relative;z-index:1}
.btn:hover{transform:translateY(-2px);box-shadow:0 8px 25px rgba(30,64,175,.4)}
.btn:disabled{opacity:.65;cursor:not-allowed;transform:none}
.output-wrap{position:relative;margin-top:8px}
.output{background:#f8fafc;border:2px solid #e2e8f0;border-radius:12px;padding:20px;min-height:100px;font-size:14px;line-height:1.75}
.output p{margin:0 0 12px}.output p:last-child{margin-bottom:0}
.output ul,.output ol{margin:10px 0 14px;padding-left:22px}.output li{margin:6px 0}
.output strong{display:inline-block;margin-top:4px}
.output code{background:#f1f5f9;padding:2px 6px;border-radius:4px;font-size:.88em;color:#334155}
.output hr{border:none;border-top:1px solid #e2e8f0;margin:12px 0}
.ai-section{padding-bottom:10px;margin-bottom:10px;border-bottom:1px solid #e2e8f0}
.ai-section:last-child{border-bottom:none;margin-bottom:0;padding-bottom:0}
.ai-heading{color:#1e3a8a;font-weight:700;font-size:1em;margin-bottom:4px}
.copy-btn{position:absolute;top:10px;right:10px;background:#10b981;color:#fff;border:none;border-radius:8px;padding:6px 14px;font-size:12px;cursor:pointer;opacity:0;transition:opacity .2s}
.output-wrap:hover .copy-btn{opacity:1}
@media(hover:none){.copy-btn{opacity:1}}
.spinner{display:inline-block;width:16px;height:16px;border:3px solid rgba(255,255,255,.3);border-top-color:#fff;border-radius:50%;animation:spin .8s linear infinite;vertical-align:middle;margin-right:6px;pointer-events:none}
@keyframes spin{to{transform:rotate(360deg)}}
.output.loading{color:#94a3b8;font-style:italic}
.output.error{color:#ef4444}
.btn i,.tabs button i{pointer-events:none}
.related-btns{display:flex;flex-wrap:wrap;gap:8px;margin-top:16px;align-items:center}
.related-label{font-size:.82em;color:#64748b;font-weight:600}
.related-btns button{background:#f0f4ff;border:1.5px solid #dbeafe;color:#1e3a8a;padding:6px 14px;border-radius:999px;font-size:.82em;font-weight:600;cursor:pointer;transition:all .2s}
.related-btns button:hover{background:#dbeafe;transform:translateY(-1px)}
.char-count{font-size:.78em;color:#64748b;text-align:right;margin-top:4px}
.footer{text-align:center;padding:32px 20px;color:#64748b;font-size:.88em;line-height:2;background:#fff;margin-top:20px;border-radius:16px;box-shadow:0 4px 20px rgba(0,0,0,.08)}
hr{border:none;border-top:1px solid #e2e8f0;margin:12px 0}
@media(max-width:640px){.hero{padding:28px 16px}.card{padding:18px}.tabs{grid-template-columns:repeat(auto-fit,minmax(60px,1fr));gap:6px}}

/* ── Legal pages ─────────────────────── */
.legal-content { max-width: 800px; margin: 0 auto; padding: 2rem 1.5rem; }
.legal-content .card { padding: 2rem; }
.legal-content h1 { font-size: 1.8em; margin-bottom: 8px; color: var(--text, #1f2937); }
.legal-content .legal-updated { color: var(--muted, #6b7280); font-size: .85em; margin-bottom: 28px; }
.legal-content h2 { color: var(--blue, #1a6cf5); font-size: 1.15em; margin: 28px 0 10px; padding-bottom: 6px; border-bottom: 2px solid var(--border, #e5e7eb); }
.legal-content p, .legal-content li { color: var(--text, #374151); line-height: 1.8; margin-bottom: 10px; }
.legal-content ul { padding-left: 24px; }
.legal-content li { margin-bottom: 6px; }
.legal-highlight { background: #eff6ff; border-left: 4px solid var(--blue, #1a6cf5); padding: 14px 18px; border-radius: 0 8px 8px 0; margin: 16px 0; }


/* ─────────────────────────────────────────────────────── *
 * CUTTING-EDGE OVERLAY — modernizes hero with mesh gradient,
 * larger emphasized logo, subtle grid, glassmorphism CTAs.
 * Appended to existing hero styles without breaking layout.
 * ─────────────────────────────────────────────────────── */
.hero {
  background: #0a0e27 !important;
  padding: 80px 24px 60px !important;
  position: relative;
  overflow: hidden;
  isolation: isolate;
}
.hero::before {
  content: '';
  position: absolute; inset: -10%;
  background:
    radial-gradient(at 20% 20%, rgba(99,102,241,0.55) 0%, transparent 50%),
    radial-gradient(at 80% 15%, rgba(6,182,212,0.45) 0%, transparent 50%),
    radial-gradient(at 35% 80%, rgba(139,92,246,0.5) 0%, transparent 50%),
    radial-gradient(at 90% 75%, rgba(26,108,245,0.45) 0%, transparent 50%);
  filter: blur(40px);
  z-index: -2;
  animation: fs-mesh 22s ease-in-out infinite;
}
.hero::after {
  content: '';
  position: absolute; inset: 0;
  background-image:
    linear-gradient(rgba(255,255,255,0.04) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,0.04) 1px, transparent 1px);
  background-size: 64px 64px;
  -webkit-mask-image: radial-gradient(ellipse at center, black 25%, transparent 75%);
  mask-image: radial-gradient(ellipse at center, black 25%, transparent 75%);
  z-index: -1;
  pointer-events: none;
}
@keyframes fs-mesh {
  0%, 100% { transform: scale(1) rotate(0deg); }
  50%      { transform: scale(1.15) rotate(8deg); }
}
.hero h1 {
  font-size: clamp(2.4rem, 5.5vw, 4rem) !important;
  font-weight: 800 !important;
  letter-spacing: -0.03em;
  line-height: 1.05 !important;
  margin-bottom: 14px !important;
  filter: drop-shadow(0 4px 24px rgba(139,92,246,0.4));
  animation: fs-logo-float 6s ease-in-out infinite;
}
@keyframes fs-logo-float {
  0%, 100% { transform: translateY(0px); }
  50%      { transform: translateY(-6px); }
}
.hero h1 span,
.hero h1 .accent,
.hero h1 .logo-brand,
.hero h1 .highlight {
  background: linear-gradient(135deg, #22d3ee 0%, #a78bfa 60%, #f0abfc 100%);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
}
.hero p,
.hero .hero-desc,
.hero .landing-subtitle {
  font-size: clamp(1rem, 2.1vw, 1.2rem) !important;
  opacity: .9 !important;
  max-width: 680px;
}
.hero-badge,
.fs-hero-badge {
  background: rgba(255,255,255,0.08) !important;
  backdrop-filter: blur(10px); -webkit-backdrop-filter: blur(10px);
  border: 1px solid rgba(255,255,255,0.18) !important;
}
.hero-pill,
.badge-pill,
.fs-hero-pill,
.badge {
  background: rgba(255,255,255,0.06) !important;
  backdrop-filter: blur(8px); -webkit-backdrop-filter: blur(8px);
  border: 1px solid rgba(255,255,255,0.12) !important;
}
.hero .btn,
.landing-cta {
  background: linear-gradient(135deg, #ffffff 0%, #f0f7ff 100%) !important;
  color: #6366f1 !important;
  box-shadow: 0 4px 24px rgba(255,255,255,0.2) !important;
  border-radius: 12px !important;
}
.hero .btn:hover,
.landing-cta:hover {
  box-shadow: 0 8px 32px rgba(255,255,255,0.35), 0 0 20px rgba(99,102,241,0.4) !important;
  transform: translateY(-2px) !important;
}

/* ═══════════════════════════════════════════════════════
 * FUTURISTIC v2 — deeper dark skin, noise, glow, marquee
 * ═══════════════════════════════════════════════════════ */

/* Film-grain overlay */
body::before {
  content: '';
  position: fixed; inset: 0;
  background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 200 200' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.85' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)' opacity='0.55'/%3E%3C/svg%3E");
  opacity: 0.025;
  pointer-events: none;
  z-index: 9999;
  mix-blend-mode: overlay;
}

/* Hero logo / title with conic-gradient glow halo */
.hero h1 {
  position: relative;
  isolation: isolate;
}
.hero h1::before {
  content: '';
  position: absolute;
  top: 50%; left: 50%;
  width: 220px; height: 220px;
  transform: translate(-50%, -50%);
  z-index: -1;
  border-radius: 50%;
  background: conic-gradient(from 0deg,
    rgba(99,102,241,0.4), rgba(6,182,212,0.4),
    rgba(139,92,246,0.4), rgba(244,114,182,0.4),
    rgba(99,102,241,0.4));
  filter: blur(40px);
  animation: fs-ring-spin 18s linear infinite;
}
@keyframes fs-ring-spin { to { transform: translate(-50%, -50%) rotate(360deg); } }

/* Stronger glassmorphism on hero badges */
.fs-hero-badge,
.hero-badge {
  background: rgba(255,255,255,0.06) !important;
  -webkit-backdrop-filter: blur(14px) saturate(180%);
          backdrop-filter: blur(14px) saturate(180%);
  border: 1px solid rgba(255,255,255,0.15) !important;
}

/* Glow on hero buttons */
.hero .btn,
.landing-cta {
  position: relative;
  overflow: hidden;
}
.hero .btn::before,
.landing-cta::before {
  content: '';
  position: absolute;
  inset: -2px;
  border-radius: inherit;
  background: linear-gradient(135deg, rgba(99,102,241,0.6), rgba(6,182,212,0.6), rgba(139,92,246,0.6));
  z-index: -1;
  opacity: 0;
  filter: blur(8px);
  transition: opacity .3s;
}
.hero .btn:hover::before,
.landing-cta:hover::before { opacity: 1; }

/* ═══════════════════════════════════════════════════════════════ *
 * AI AGENT FLOATING WIDGET — futuristic Pro-gated assistant
 * Bottom-right FAB → slide-up glassmorphism chat panel
 * ═══════════════════════════════════════════════════════════════ */

.fs-agent-fab {
  position: fixed; right: 20px; bottom: 20px; z-index: 9998;
  display: inline-flex; align-items: center; gap: 10px;
  padding: 10px 18px 10px 12px;
  background: rgba(6,9,26,0.78);
  -webkit-backdrop-filter: blur(20px) saturate(180%);
  backdrop-filter: blur(20px) saturate(180%);
  border: 1px solid rgba(99,102,241,0.4);
  border-radius: 999px;
  color: #fff;
  font: 600 13.5px/1.2 'Inter', -apple-system, sans-serif;
  cursor: pointer;
  box-shadow:
    0 8px 32px rgba(99,102,241,0.35),
    0 0 0 1px rgba(255,255,255,0.04) inset;
  transition: transform .18s, box-shadow .18s, border-color .18s;
  isolation: isolate;
}
.fs-agent-fab:hover {
  transform: translateY(-2px) scale(1.02);
  border-color: rgba(139,92,246,0.6);
  box-shadow: 0 12px 40px rgba(139,92,246,0.45), 0 0 32px rgba(99,102,241,0.4);
}
.fs-agent-fab-ring {
  position: absolute; inset: -2px; border-radius: inherit; z-index: -1;
  background: conic-gradient(from 0deg,
    #6366f1, #06b6d4, #8b5cf6, #f0abfc, #6366f1);
  filter: blur(8px); opacity: .85;
  animation: fs-agent-spin 6s linear infinite;
}
@keyframes fs-agent-spin { to { transform: rotate(360deg); } }
.fs-agent-fab-icon {
  width: 34px; height: 34px;
  display: inline-flex; align-items: center; justify-content: center;
  background: linear-gradient(135deg, #6366f1, #8b5cf6);
  border-radius: 50%;
  color: #fff;
  box-shadow: inset 0 0 0 1px rgba(255,255,255,0.2);
}
.fs-agent-fab-icon svg { width: 18px; height: 18px; }
.fs-agent-fab-text { display: flex; flex-direction: column; align-items: flex-start; gap: 1px; }
.fs-agent-fab-label { font-weight: 700; font-size: 13.5px; letter-spacing: -0.005em; }
.fs-agent-fab-sub { font-size: 10.5px; opacity: .7; font-weight: 500; letter-spacing: 0.02em; }

/* Mobile: collapse to icon-only */
@media (max-width: 540px) {
  .fs-agent-fab { padding: 10px; }
  .fs-agent-fab-text { display: none; }
}

/* Hide FAB when panel is open */
.fs-agent-fab.is-open { transform: scale(0.85); opacity: 0; pointer-events: none; }

/* ─── Panel ─────────────────────────────────────────────────── */
.fs-agent-panel {
  position: fixed; right: 20px; bottom: 20px; z-index: 9999;
  width: min(420px, calc(100vw - 24px));
  max-height: min(720px, calc(100vh - 40px));
  display: flex; flex-direction: column;
  background: rgba(10,14,39,0.92);
  -webkit-backdrop-filter: blur(28px) saturate(180%);
  backdrop-filter: blur(28px) saturate(180%);
  border: 1px solid rgba(99,102,241,0.3);
  border-radius: 20px;
  box-shadow:
    0 24px 80px rgba(0,0,0,0.6),
    0 0 0 1px rgba(255,255,255,0.04) inset,
    0 0 48px rgba(99,102,241,0.2);
  color: #e2e8f0;
  font-family: 'Inter', -apple-system, sans-serif;
  overflow: hidden;
  isolation: isolate;
  animation: fs-agent-slide-in .25s cubic-bezier(.16,1,.3,1);
}
@keyframes fs-agent-slide-in {
  from { transform: translateY(20px) scale(0.96); opacity: 0; }
  to   { transform: none; opacity: 1; }
}
.fs-agent-panel[hidden] { display: none; }
.fs-agent-glow {
  position: absolute; inset: -50%; z-index: -1;
  background:
    radial-gradient(at 20% 15%, rgba(99,102,241,0.3) 0%, transparent 45%),
    radial-gradient(at 80% 85%, rgba(139,92,246,0.25) 0%, transparent 45%);
  filter: blur(40px);
  opacity: .6;
  pointer-events: none;
}

/* Header */
.fs-agent-head {
  display: flex; align-items: center; justify-content: space-between;
  padding: 14px 18px;
  border-bottom: 1px solid rgba(255,255,255,0.06);
  flex-shrink: 0;
}
.fs-agent-brand { display: flex; align-items: center; gap: 12px; }
.fs-agent-orb {
  width: 32px; height: 32px; border-radius: 50%;
  background: conic-gradient(from 0deg, #6366f1, #06b6d4, #8b5cf6, #f472b6, #6366f1);
  box-shadow: 0 0 16px rgba(99,102,241,0.6), inset 0 0 0 2px rgba(255,255,255,0.1);
  animation: fs-agent-orb-spin 8s linear infinite;
}
@keyframes fs-agent-orb-spin { to { transform: rotate(360deg); } }
.fs-agent-brand h3 { font: 700 15px/1.2 'Inter', sans-serif; color: #fff; margin: 0; letter-spacing: -0.01em; }
.fs-agent-tagline { font-size: 11.5px; color: #94a3b8; margin: 2px 0 0; }
.fs-agent-close {
  background: rgba(255,255,255,0.04); border: 1px solid rgba(255,255,255,0.1);
  width: 30px; height: 30px; border-radius: 50%;
  color: #cbd5e1; font-size: 15px; cursor: pointer;
  display: flex; align-items: center; justify-content: center;
  transition: background .15s, color .15s;
}
.fs-agent-close:hover { background: rgba(255,255,255,0.1); color: #fff; }

/* Body */
.fs-agent-body {
  flex: 1; overflow-y: auto;
  padding: 16px;
  display: flex; flex-direction: column; gap: 14px;
}
.fs-agent-suggest .fs-agent-hint {
  font-size: 12.5px; line-height: 1.55; color: #cbd5e1;
  padding: 12px 14px; margin: 0 0 10px;
  background: rgba(99,102,241,0.08);
  border: 1px solid rgba(99,102,241,0.15);
  border-radius: 12px;
}
.fs-agent-suggest .fs-agent-hint strong { color: #a78bfa; }
.fs-agent-chips { display: flex; flex-wrap: wrap; gap: 6px; }
.fs-agent-chip {
  background: rgba(255,255,255,0.04);
  border: 1px solid rgba(255,255,255,0.1);
  color: #cbd5e1;
  padding: 5px 12px; border-radius: 999px;
  font: 500 12px/1.2 'Inter', sans-serif;
  cursor: pointer;
  transition: background .15s, border-color .15s, color .15s;
}
.fs-agent-chip:hover {
  background: rgba(99,102,241,0.15);
  border-color: rgba(99,102,241,0.4);
  color: #fff;
}

/* Message stream */
.fs-agent-stream { display: flex; flex-direction: column; gap: 10px; }
.fs-agent-stream:empty { display: none; }
.fs-agent-msg {
  padding: 10px 14px; border-radius: 12px;
  font-size: 13.5px; line-height: 1.6;
  max-width: 95%;
}
.fs-agent-msg.user {
  background: linear-gradient(135deg, rgba(99,102,241,0.2), rgba(139,92,246,0.15));
  border: 1px solid rgba(99,102,241,0.3);
  color: #e2e8f0;
  align-self: flex-end;
}
.fs-agent-msg.assistant {
  background: rgba(255,255,255,0.03);
  border: 1px solid rgba(255,255,255,0.08);
  color: #e2e8f0;
}
.fs-agent-msg.assistant strong { color: #fff; }
.fs-agent-msg.assistant em { color: #a78bfa; font-style: normal; }
.fs-agent-msg.loading {
  background: rgba(255,255,255,0.02);
  border: 1px solid rgba(255,255,255,0.06);
  color: #94a3b8;
  font-style: italic;
}
.fs-agent-msg.loading::before {
  content: ''; display: inline-block;
  width: 8px; height: 8px; margin-right: 8px; vertical-align: middle;
  background: linear-gradient(135deg, #6366f1, #06b6d4);
  border-radius: 50%;
  animation: fs-agent-pulse 1.4s ease-in-out infinite;
}
@keyframes fs-agent-pulse {
  0%, 100% { opacity: .4; transform: scale(0.8); }
  50%      { opacity: 1;  transform: scale(1.2); }
}
.fs-agent-msg.error {
  background: rgba(239,68,68,0.08);
  border: 1px solid rgba(239,68,68,0.25);
  color: #fca5a5;
}

/* Tool-call summary */
.fs-agent-tools { font-size: 11px; color: #64748b; padding: 0 4px; }
.fs-agent-tools:empty { display: none; }
.fs-agent-tools .chip {
  display: inline-block;
  background: rgba(139,92,246,0.12);
  color: #c4b5fd;
  border: 1px solid rgba(139,92,246,0.2);
  padding: 2px 9px; border-radius: 999px;
  margin: 2px 4px 2px 0; font-weight: 600;
}

/* Input */
.fs-agent-input {
  display: flex; gap: 8px; align-items: flex-end;
  padding: 12px 14px;
  background: rgba(0,0,0,0.25);
  border-top: 1px solid rgba(255,255,255,0.06);
  flex-shrink: 0;
}
.fs-agent-input textarea {
  flex: 1;
  min-height: 40px; max-height: 140px; resize: none;
  padding: 9px 12px;
  background: rgba(255,255,255,0.04);
  border: 1px solid rgba(255,255,255,0.1);
  border-radius: 10px;
  color: #e2e8f0;
  font: 13.5px/1.5 'Inter', sans-serif;
}
.fs-agent-input textarea:focus {
  outline: none;
  border-color: rgba(99,102,241,0.5);
  box-shadow: 0 0 0 3px rgba(99,102,241,0.15);
}
.fs-agent-input textarea::placeholder { color: #64748b; }
.fs-agent-send {
  width: 40px; height: 40px;
  background: linear-gradient(135deg, #6366f1, #8b5cf6);
  border: none; border-radius: 10px;
  color: #fff; cursor: pointer;
  display: flex; align-items: center; justify-content: center;
  box-shadow: 0 4px 16px rgba(99,102,241,0.35);
  transition: transform .15s, box-shadow .15s;
  flex-shrink: 0;
}
.fs-agent-send svg { width: 16px; height: 16px; }
.fs-agent-send:hover { transform: translateY(-1px); box-shadow: 0 6px 24px rgba(99,102,241,0.5); }
.fs-agent-send:disabled { opacity: .4; cursor: not-allowed; transform: none; }

/* Pro upgrade overlay */
.fs-agent-upgrade {
  position: absolute; inset: 0; z-index: 10;
  background: rgba(6,9,26,0.85);
  -webkit-backdrop-filter: blur(14px); backdrop-filter: blur(14px);
  display: flex; align-items: center; justify-content: center;
  padding: 20px;
  animation: fs-agent-fade-in .2s ease;
}
@keyframes fs-agent-fade-in { from { opacity: 0; } to { opacity: 1; } }
.fs-agent-upgrade[hidden] { display: none; }
.fs-agent-upgrade-inner {
  max-width: 320px; text-align: center;
  background: rgba(255,255,255,0.05);
  border: 1px solid rgba(99,102,241,0.35);
  border-radius: 16px;
  padding: 24px 22px;
  box-shadow: 0 24px 64px rgba(99,102,241,0.3);
}
.fs-agent-upgrade-icon {
  display: inline-block;
  font-size: 28px;
  width: 56px; height: 56px; line-height: 56px;
  border-radius: 50%;
  background: linear-gradient(135deg, #6366f1, #8b5cf6);
  margin-bottom: 12px;
  box-shadow: 0 0 24px rgba(99,102,241,0.5);
}
.fs-agent-upgrade h4 { font: 700 16px 'Inter', sans-serif; color: #fff; margin: 0 0 6px; }
.fs-agent-upgrade p { font-size: 12.5px; line-height: 1.55; color: #94a3b8; margin: 0 0 14px; }
.fs-agent-upgrade-cta {
  display: inline-flex; align-items: center; gap: 6px;
  background: linear-gradient(135deg, #6366f1, #8b5cf6);
  color: #fff; padding: 10px 22px; border-radius: 10px;
  text-decoration: none; font-weight: 700; font-size: 13.5px;
  box-shadow: 0 8px 24px rgba(99,102,241,0.45);
  transition: transform .15s;
}
.fs-agent-upgrade-cta:hover { transform: translateY(-2px); }
.fs-agent-upgrade-fine { font-size: 11px; color: #64748b; margin-top: 10px; }

/* Mobile: full-screen panel */
@media (max-width: 540px) {
  .fs-agent-panel {
    right: 0; bottom: 0; left: 0;
    width: 100%;
    max-height: 92vh;
    border-radius: 20px 20px 0 0;
  }
}