/* ===== Vigil Landing Page ===== */
*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}

:root{
  --brand:#3b82f6;
  --brand-light:#60a5fa;
  --brand-dark:#1d4ed8;
  --accent:#06b6d4;
  --accent-light:#22d3ee;

  --hero-from:#eef2ff;
  --hero-to:#f8fafc;

  --bg:#f8fafc;
  --surface:#ffffff;
  --surface-soft:#f1f5f9;
  --text:#0f172a;
  --text-secondary:#475569;
  --text-muted:#94a3b8;
  --line:#e2e8f0;

  --font-sans:Inter,"Segoe UI","Microsoft YaHei","PingFang SC",system-ui,sans-serif;
  --font-mono:"SF Mono",Consolas,"Liberation Mono",monospace;

  --radius:12px;
  --radius-sm:8px;
  --radius-lg:16px;
  --shadow:0 4px 24px rgba(0,0,0,.06);
  --shadow-lg:0 12px 48px rgba(0,0,0,.10);
  --transition:0.25s cubic-bezier(.4,0,.2,1);
}

html{scroll-behavior:smooth;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale}
body.landing{font-family:var(--font-sans);color:var(--text);background:var(--bg);line-height:1.6;overflow-x:hidden}

/* ---- Nav ---- */
.vg-nav{position:sticky;top:0;z-index:100;background:rgba(255,255,255,.92);backdrop-filter:blur(20px);border-bottom:1px solid #e2e8f0}
.vg-nav-inner{max-width:1200px;margin:0 auto;display:flex;align-items:center;justify-content:space-between;padding:0 24px;height:64px}
.vg-nav-brand{display:flex;align-items:center;gap:10px;text-decoration:none;color:#0f172a}
.vg-nav-brand img{width:32px;height:32px}
.vg-nav-brand span{font-size:20px;font-weight:700;letter-spacing:.5px}
.vg-nav-links{display:flex;gap:32px;list-style:none}
.vg-nav-links a{color:#475569;text-decoration:none;font-size:14px;font-weight:500;transition:color var(--transition)}
.vg-nav-links a:hover{color:#0f172a}
.vg-nav-cta{display:inline-flex;align-items:center;gap:6px;padding:8px 20px;border-radius:var(--radius-sm);background:var(--brand);color:#fff;font-size:14px;font-weight:600;text-decoration:none;transition:all var(--transition);border:none;cursor:pointer}
.vg-nav-cta:hover{background:var(--brand-light);transform:translateY(-1px);box-shadow:0 4px 16px rgba(59,130,246,.35)}

/* ---- Hero ---- */
.vg-hero{position:relative;min-height:92vh;display:flex;align-items:center;justify-content:center;background:linear-gradient(170deg,var(--hero-from) 0%,var(--hero-to) 100%);overflow:hidden}
.vg-hero-grid{position:absolute;inset:0;background-image:
  linear-gradient(rgba(59,130,246,.08) 1px,transparent 1px),
  linear-gradient(90deg,rgba(59,130,246,.08) 1px,transparent 1px);
  background-size:60px 60px;mask-image:radial-gradient(ellipse 70% 60% at 50% 40%,#000 30%,transparent 100%)}
.vg-hero-glow{position:absolute;top:-20%;left:50%;transform:translateX(-50%);width:800px;height:800px;background:radial-gradient(circle,rgba(59,130,246,.08) 0%,transparent 70%);pointer-events:none}
.vg-hero-content{position:relative;text-align:center;max-width:800px;padding:0 24px}
.vg-hero-badge{display:inline-flex;align-items:center;gap:6px;padding:6px 16px;border-radius:999px;background:rgba(59,130,246,.1);border:1px solid rgba(59,130,246,.2);color:var(--brand);font-size:13px;font-weight:500;margin-bottom:32px}
.vg-hero-badge .dot{width:6px;height:6px;border-radius:50%;background:var(--accent);animation:pulse 2s ease-in-out infinite}
@keyframes pulse{0%,100%{opacity:1}50%{opacity:.4}}
.vg-hero h1{font-size:clamp(36px,6vw,64px);font-weight:800;line-height:1.1;color:#0f172a;margin-bottom:20px;letter-spacing:-.02em}
.vg-hero h1 .highlight{background:linear-gradient(135deg,var(--brand),var(--accent));-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text}
.vg-hero-sub{font-size:clamp(16px,2.2vw,20px);color:#475569;margin-bottom:12px;font-weight:400}
.vg-hero-slogan{font-size:15px;color:#94a3b8;font-style:italic;margin-bottom:40px;letter-spacing:.5px}
.vg-hero-actions{display:flex;gap:16px;justify-content:center;flex-wrap:wrap}
.vg-btn-primary{display:inline-flex;align-items:center;gap:8px;padding:14px 32px;border-radius:var(--radius-sm);background:linear-gradient(135deg,var(--brand),var(--brand-dark));color:#fff;font-size:16px;font-weight:600;text-decoration:none;transition:all var(--transition);border:none;cursor:pointer;box-shadow:0 4px 20px rgba(59,130,246,.3)}
.vg-btn-primary:hover{transform:translateY(-2px);box-shadow:0 8px 32px rgba(59,130,246,.45)}
.vg-btn-secondary{display:inline-flex;align-items:center;gap:8px;padding:14px 32px;border-radius:var(--radius-sm);background:transparent;color:#334155;font-size:16px;font-weight:500;text-decoration:none;border:1px solid #cbd5e1;transition:all var(--transition);cursor:pointer}
.vg-btn-secondary:hover{color:#0f172a;border-color:#94a3b8;background:rgba(0,0,0,.03)}

/* ---- Sections common ---- */
.vg-section{padding:100px 24px}
.vg-section-inner{max-width:1200px;margin:0 auto}
.vg-section-header{text-align:center;margin-bottom:64px}
.vg-section-eyebrow{display:inline-block;font-size:13px;font-weight:600;text-transform:uppercase;letter-spacing:2px;color:var(--brand);margin-bottom:12px}
.vg-section-title{font-size:clamp(28px,4vw,40px);font-weight:800;color:var(--text);line-height:1.2;margin-bottom:16px;letter-spacing:-.01em}
.vg-section-desc{font-size:17px;color:var(--text-secondary);max-width:600px;margin:0 auto;line-height:1.7}

/* ---- Features ---- */
.vg-features-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.vg-feature-card{background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);padding:32px 28px;transition:all var(--transition);cursor:default}
.vg-feature-card:hover{border-color:var(--brand);transform:translateY(-4px);box-shadow:var(--shadow-lg)}
.vg-feature-icon{width:48px;height:48px;border-radius:var(--radius-sm);display:flex;align-items:center;justify-content:center;margin-bottom:20px;font-size:22px}
.vg-feature-icon.infra{background:rgba(59,130,246,.1);color:var(--brand)}
.vg-feature-icon.mcp{background:rgba(6,182,212,.1);color:var(--accent)}
.vg-feature-icon.skill{background:rgba(168,85,247,.1);color:#a855f7}
.vg-feature-icon.a2a{background:rgba(34,197,94,.1);color:#22c55e}
.vg-feature-icon.redteam{background:rgba(239,68,68,.1);color:#ef4444}
.vg-feature-icon.agent{background:rgba(245,158,11,.1);color:#f59e0b}
.vg-feature-card h3{font-size:18px;font-weight:700;margin-bottom:10px;color:var(--text)}
.vg-feature-card p{font-size:14px;color:var(--text-secondary);line-height:1.65}

/* ---- Workflow ---- */
.vg-section.workflow{background:var(--surface-soft)}
.vg-workflow-steps{display:grid;grid-template-columns:repeat(4,1fr);gap:32px;position:relative}
.vg-workflow-steps::before{content:"";position:absolute;top:36px;left:calc(12.5% + 12px);right:calc(12.5% + 12px);height:2px;background:linear-gradient(90deg,var(--brand),var(--accent));opacity:.25}
.vg-step{text-align:center;position:relative}
.vg-step-num{width:72px;height:72px;border-radius:50%;background:var(--surface);border:2px solid var(--line);display:flex;align-items:center;justify-content:center;margin:0 auto 20px;font-size:15px;font-weight:700;color:var(--brand);transition:all var(--transition);position:relative;z-index:1}
.vg-step:hover .vg-step-num{border-color:var(--brand);background:rgba(59,130,246,.06);transform:scale(1.08)}
.vg-step-num svg{width:28px;height:28px;stroke:var(--brand);stroke-width:1.8;fill:none}
.vg-step h4{font-size:16px;font-weight:700;margin-bottom:8px;color:var(--text)}
.vg-step p{font-size:13px;color:var(--text-muted);line-height:1.6;padding:0 8px}

/* ---- Highlights ---- */
.vg-highlights-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:20px}
.vg-highlight{padding:28px 24px;border-radius:var(--radius);background:linear-gradient(135deg,rgba(59,130,246,.04),rgba(6,182,212,.04));border:1px solid var(--line);transition:all var(--transition)}
.vg-highlight:hover{border-color:rgba(59,130,246,.3);background:linear-gradient(135deg,rgba(59,130,246,.08),rgba(6,182,212,.06))}
.vg-highlight-icon{font-size:28px;margin-bottom:16px}
.vg-highlight h4{font-size:15px;font-weight:700;margin-bottom:8px;color:var(--text)}
.vg-highlight p{font-size:13px;color:var(--text-secondary);line-height:1.6}

/* ---- Footer ---- */
.vg-footer{background:#f1f5f9;color:#64748b;padding:48px 24px}
.vg-footer-inner{max-width:1200px;margin:0 auto;display:flex;align-items:center;justify-content:space-between;flex-wrap:wrap;gap:16px}
.vg-footer-brand{display:flex;align-items:center;gap:10px}
.vg-footer-brand img{width:24px;height:24px;opacity:.6}
.vg-footer-brand span{font-size:15px;font-weight:600;color:#334155}
.vg-footer-copy{font-size:13px}
.vg-footer-links{display:flex;gap:24px}
.vg-footer-links a{color:#94a3b8;text-decoration:none;font-size:13px;transition:color var(--transition)}
.vg-footer-links a:hover{color:#334155}

/* ---- Scroll reveal ---- */
.vg-reveal{opacity:0;transform:translateY(24px);transition:opacity .6s ease,transform .6s ease}
.vg-reveal.visible{opacity:1;transform:translateY(0)}

/* ---- Responsive ---- */
@media(max-width:1024px){
  .vg-features-grid{grid-template-columns:repeat(2,1fr)}
  .vg-workflow-steps{grid-template-columns:repeat(2,1fr)}
  .vg-workflow-steps::before{display:none}
  .vg-highlights-grid{grid-template-columns:repeat(2,1fr)}
}
@media(max-width:768px){
  .vg-nav-links{display:none}
  .vg-hero{min-height:80vh}
  .vg-section{padding:64px 20px}
  .vg-features-grid{grid-template-columns:1fr}
  .vg-workflow-steps{grid-template-columns:1fr;gap:24px}
  .vg-highlights-grid{grid-template-columns:1fr}
  .vg-footer-inner{flex-direction:column;text-align:center}
}

/* ---- Nav actions & user badge ---- */
.vg-nav-actions{display:flex;align-items:center;gap:12px}
.vg-user-badge{display:inline-flex;align-items:center;gap:5px;padding:6px 14px;border-radius:var(--radius-sm);background:rgba(59,130,246,.06);color:#334155;font-size:13px;font-weight:500;border:1px solid rgba(59,130,246,.15)}
.vg-user-badge svg{color:var(--brand)}
.vg-hero-user-badge{display:inline-flex;align-items:center;gap:6px;padding:10px 22px;border-radius:var(--radius-sm);background:rgba(59,130,246,.06);color:#334155;font-size:15px;font-weight:500;border:1px solid rgba(59,130,246,.15)}
.vg-hero-user-badge svg{color:var(--brand)}

/* ---- Auth Modal ---- */
.auth-overlay{display:none;position:fixed;inset:0;z-index:200;background:rgba(0,0,0,.4);backdrop-filter:blur(4px);align-items:center;justify-content:center}
.auth-overlay.open{display:flex}
.auth-modal{position:relative;width:100%;max-width:420px;margin:0 20px;background:#fff;border-radius:16px;padding:36px 32px 32px;box-shadow:0 12px 48px rgba(0,0,0,.12);animation:authSlideIn .25s ease-out}
@keyframes authSlideIn{from{opacity:0;transform:translateY(16px)}to{opacity:1;transform:translateY(0)}}
.auth-close{position:absolute;top:12px;right:16px;width:32px;height:32px;border:none;background:transparent;font-size:22px;color:#94a3b8;cursor:pointer;border-radius:6px;display:flex;align-items:center;justify-content:center;transition:all .15s}
.auth-close:hover{color:#334155;background:rgba(0,0,0,.04)}
.auth-tabs{display:grid;grid-template-columns:1fr 1fr;gap:4px;background:#f1f5f9;border-radius:8px;padding:4px;margin-bottom:24px}
.auth-tab{padding:9px;border:none;background:transparent;color:#94a3b8;font-size:14px;font-weight:600;cursor:pointer;border-radius:6px;transition:all .2s;font-family:inherit}
.auth-tab.active{background:var(--brand);color:#fff;box-shadow:0 2px 8px rgba(59,130,246,.25)}
.auth-tab:not(.active):hover{color:#334155}
.auth-form{display:none;flex-direction:column;gap:16px}
.auth-form.active{display:flex}
.auth-field{display:flex;flex-direction:column;gap:5px}
.auth-field label{font-size:13px;font-weight:500;color:#475569}
.auth-field input{width:100%;padding:11px 14px;border-radius:10px;border:1px solid #e2e8f0;background:rgba(255,255,255,.8);color:#0f172a;font-size:15px;font-family:inherit;transition:border-color .2s;outline:none}
.auth-field input:focus{border-color:rgba(59,130,246,.5);background:#fff}
.auth-field input::placeholder{color:#94a3b8}
.auth-field-error{font-size:12px;color:#ef4444;min-height:14px}
.auth-code-row{display:flex;gap:8px}
.auth-code-row input{flex:1}
.auth-send-code{flex-shrink:0;padding:11px 14px;border:1px solid var(--brand);border-radius:10px;background:transparent;color:var(--brand);font-size:13px;font-weight:600;cursor:pointer;transition:all .2s;font-family:inherit;white-space:nowrap}
.auth-send-code:hover{background:rgba(59,130,246,.08)}
.auth-send-code:disabled{opacity:.4;cursor:not-allowed;border-color:#e2e8f0;color:#94a3b8}
.auth-submit{width:100%;padding:12px;border:none;border-radius:10px;background:linear-gradient(135deg,var(--brand),var(--brand-dark));color:#fff;font-size:15px;font-weight:600;cursor:pointer;transition:all .2s;font-family:inherit;margin-top:4px}
.auth-submit:hover{transform:translateY(-1px);box-shadow:0 6px 20px rgba(59,130,246,.3)}
.auth-submit:active{transform:translateY(0)}
.auth-submit:disabled{opacity:.5;cursor:not-allowed;transform:none;box-shadow:none}
.auth-toast{position:fixed;top:24px;left:50%;transform:translateX(-50%);padding:12px 24px;border-radius:10px;font-size:14px;font-weight:500;z-index:300;opacity:0;transition:opacity .3s;pointer-events:none;font-family:var(--font-sans)}
.auth-toast.error{background:rgba(239,68,68,.12);color:#ef4444;border:1px solid rgba(239,68,68,.25);opacity:1}
.auth-toast.success{background:rgba(34,197,94,.12);color:#22c55e;border:1px solid rgba(34,197,94,.25);opacity:1}
@media(max-width:480px){.auth-modal{padding:28px 20px 24px}}