:root{--bg:#f8fafc;--white:#fff;--text:#0f172a;--muted:#475569;--line:#e2e8f0;--primary:#12c6d7;--primary-dark:#0ea5b7;--dark:#020617;--soft:#ecfeff;--radius-xl:28px;--radius-lg:20px;--shadow:0 20px 60px #0f172a14;--title-dark:#27374a}*{box-sizing:border-box;margin:0;padding:0}html{scroll-behavior:smooth}body{background:var(--white);color:var(--text);font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Helvetica,Arial,sans-serif;line-height:1.5}a{color:inherit;text-decoration:none}.container{width:min(1120px,100% - 40px);margin:0 auto}.header{z-index:100;-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px);background:#ffffffe6;border-bottom:1px solid #e2e8f0e6;position:sticky;top:0}.header-inner{justify-content:space-between;align-items:center;gap:20px;padding:18px 0;display:flex}.brand{align-items:center;display:inline-flex}.brand-logo{width:120px;height:auto;display:block}.footer-logo{width:84px;height:auto;display:block}.nav{color:var(--muted);gap:28px;font-size:.95rem;font-weight:600;display:flex}.nav a:hover{color:var(--text)}.header-actions{gap:10px;display:flex}.btn{cursor:pointer;border:none;border-radius:18px;justify-content:center;align-items:center;padding:14px 22px;font-size:.95rem;font-weight:800;transition:all .2s;display:inline-flex}.btn:hover{transform:translateY(-1px)}.btn-primary{background:var(--primary);color:#fff;box-shadow:0 12px 30px #12c6d747}.btn-primary:hover{background:var(--primary-dark)}.btn-dark{background:var(--dark);color:#fff}.btn-outline{color:var(--text);background:#fff;border:1px solid #cbd5e1}.hero{position:relative;overflow:hidden}.hero:before{content:"";pointer-events:none;background:radial-gradient(circle at top,#12c6d729,#0000 36%);position:absolute;inset:0}.hero-grid{grid-template-columns:1.1fr .9fr;align-items:center;gap:56px;padding:82px 0 70px;display:grid;position:relative}.eyebrow{background:var(--soft);color:#0891b2;letter-spacing:.2em;text-transform:uppercase;border:1px solid #bae6fd;border-radius:999px;margin-bottom:20px;padding:9px 14px;font-size:.72rem;font-weight:800;display:inline-block}h1{letter-spacing:-.05em;max-width:680px;font-size:clamp(2.7rem,6vw,4.8rem);font-weight:950;line-height:.98}.hero p{color:var(--muted);max-width:620px;margin-top:22px;font-size:1.15rem;line-height:1.8}.hero-actions{flex-wrap:wrap;gap:14px;margin-top:30px;display:flex}.hero-mini{color:#64748b;flex-wrap:wrap;gap:12px;margin-top:30px;font-size:.95rem;font-weight:600;display:flex}.chat-card{border:1px solid var(--line);box-shadow:var(--shadow);background:#fff;border-radius:32px;padding:16px}.chat-inner{background:var(--dark);color:#fff;border-radius:24px;padding:22px}.chat-top{justify-content:space-between;align-items:center;gap:14px;margin-bottom:16px;display:flex}.chat-name{color:#67e8f9;font-weight:800}.chat-top small{color:#94a3b8;margin-top:4px;font-size:.8rem;display:block}.status{color:#67e8f9;white-space:nowrap;background:#12c6d72e;border-radius:999px;padding:7px 12px;font-size:.78rem;font-weight:800}.bubble{border-radius:18px;max-width:84%;margin-bottom:12px;padding:14px 16px;font-size:.95rem;line-height:1.7}.bubble.user{background:#ffffff1a;border-top-left-radius:6px}.bubble.lexi{background:var(--primary);border-top-right-radius:6px;margin-left:auto;font-weight:600}.section{padding:34px 0 16px}.cards-3{grid-template-columns:repeat(3,1fr);gap:18px;display:grid}.card{border:1px solid var(--line);border-radius:var(--radius-lg);background:#f8fafc;padding:28px;box-shadow:0 10px 30px #0f172a0a}.card h3{letter-spacing:-.03em;margin-bottom:12px;font-size:1.28rem;font-weight:800}.card p{color:var(--muted);font-size:.96rem;line-height:1.8}.section-head{max-width:720px;margin-bottom:34px}.section-label{text-transform:uppercase;letter-spacing:.18em;color:#0891b2;margin-bottom:10px;font-size:.78rem;font-weight:900}.section-label-cyan{color:#67e8f9;margin-bottom:12px}h2{letter-spacing:-.05em;font-size:clamp(2rem,4vw,3.2rem);font-weight:950;line-height:1.05}.section-head p{color:var(--muted);margin-top:14px;font-size:1.02rem;line-height:1.85}.steps .card{box-shadow:none;background:#fff}.cta-box{background:var(--dark);color:#fff;border-radius:32px;justify-content:space-between;align-items:center;gap:28px;margin-top:34px;padding:44px 38px;display:flex}.cta-box p{color:#cbd5e1;max-width:720px;margin-top:14px;line-height:1.8}.faq-list{gap:14px;display:grid}.faq-item{border:1px solid var(--line);background:#fff;border-radius:22px;padding:24px}.faq-item h3{letter-spacing:-.02em;margin-bottom:10px;font-size:1rem;font-weight:850}.faq-item p{color:var(--muted);font-size:.96rem;line-height:1.8}.footer{border-top:1px solid var(--line);margin-top:54px}.footer-inner{color:#64748b;flex-direction:column;align-items:flex-start;gap:14px;padding:26px 0 40px;font-size:.93rem;display:flex}.footer-brand{flex-wrap:wrap;align-items:center;gap:10px;display:flex}.footer-legal{max-width:900px;line-height:1.8}.auth-shell{background:radial-gradient(circle at top, #12c6d72e, transparent 45%), var(--bg);place-items:center;min-height:100vh;padding:32px 16px;display:grid}.auth-card{background:var(--white);border:1px solid var(--line);border-radius:var(--radius-xl);width:min(520px,100%);box-shadow:var(--shadow);padding:30px}.auth-brand{margin-bottom:12px}.auth-logo{width:105px;height:auto;display:block}.auth-card h1{margin-bottom:8px;font-size:clamp(2rem,4vw,2.6rem)}.auth-card p{color:var(--muted);margin-bottom:20px}.form-grid{gap:14px;display:grid}label{color:#334155;gap:8px;font-size:.92rem;font-weight:600;display:grid}input,textarea,select{width:100%;font:inherit;color:var(--text);background:#fff;border:1px solid #cbd5e1;border-radius:14px;padding:12px 14px}textarea{resize:vertical;min-height:140px}.auth-switch{color:var(--muted);margin-top:14px;font-size:.92rem}.auth-switch a{color:#0f766e;font-weight:700}.error-msg{color:#dc2626;font-size:.9rem}.success-msg{color:#0f766e;font-size:.9rem}.dashboard-shell{background:var(--bg);--dash-title:#334155;--dash-text:#475569;--dash-muted:#64748b;min-height:100vh}.dashboard-top{border-bottom:1px solid var(--line);background:#fff}.dashboard-top .container{justify-content:space-between;align-items:center;gap:16px;padding:18px 0;display:flex}.dashboard-logo{width:102px;height:auto;margin-bottom:8px;display:block}.account-email{color:#94a3b8}.dashboard-main{grid-template-columns:1fr;gap:16px;padding:28px 0 42px;display:grid}.panel{border:1px solid var(--line);background:#fff;border-radius:24px;padding:20px}.panel h2{color:var(--dash-title);margin-bottom:8px;font-size:1.5rem}.panel-title{color:var(--dash-title)}.panel p{color:var(--dash-text);margin-bottom:18px}.form-actions{flex-wrap:wrap;gap:12px;display:flex}.dashboard-grid{grid-template-columns:340px minmax(0,1fr);gap:16px;display:grid}.account-strip{border-radius:18px;padding:14px 16px}.case-sidebar,.case-workspace{min-height:680px}.case-sidebar{align-self:start;gap:10px;max-height:calc(100vh - 36px);display:grid;position:sticky;top:18px;overflow:auto}.case-workspace{gap:14px;display:grid}.workspace-block{background:#fcfdff;border:1px solid #e2e8f0;border-radius:16px;padding:16px}.compose-block{background:#fff}.sidebar-header{justify-content:space-between;align-items:baseline;gap:10px;display:flex}.sidebar-header small{color:#64748b;font-size:.8rem}.workspace-block p:last-child{margin-bottom:0}.workspace-case-header{justify-content:space-between;align-items:end;gap:14px;display:flex}.case-list{gap:10px;display:grid}.case-item{text-align:left;border:1px solid var(--line);cursor:pointer;background:#fdfefe;border-radius:14px;gap:6px;width:100%;padding:12px;transition:border-color .12s,box-shadow .12s,background-color .12s;display:grid}.case-item:hover{background:#fff;border-color:#bae6fd}.case-item.active{border-color:#67e8f9;box-shadow:0 0 0 3px #67e8f940}.case-item-top{color:var(--dash-muted);justify-content:space-between;gap:10px;font-size:.75rem;display:flex}.case-item small{color:var(--dash-muted)}.case-item strong{color:var(--dash-title)}.case-history-title{color:var(--dash-title);margin-top:0;margin-bottom:10px;font-size:1.05rem}.history-list{gap:12px;display:grid}.history-item{border:1px solid 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th{color:#1e3a5f;background:#eff6ff;font-weight:700}.attachments{flex-wrap:wrap;gap:8px;margin-top:10px;display:flex}.attachments button{color:var(--dash-text);cursor:pointer;background:#fff;border:1px solid #cbd5e1;border-radius:10px;padding:6px 10px;font-size:.82rem}.plan-summary-grid{grid-template-columns:repeat(3,minmax(0,1fr));gap:8px;display:grid}.plan-summary-card{border:1px solid var(--line);background:#fff;border-radius:12px;padding:10px 12px}.plan-summary-card small{color:#64748b;margin-bottom:6px;display:block}.plan-summary-card strong{color:var(--dash-title);margin-bottom:2px;font-size:1.02rem;display:block}.plan-summary-card p{color:#475569;margin:0;font-size:.86rem}.limit-banner{background:#ecfeff;border:1px solid #bae6fd;border-radius:12px;gap:8px;margin-top:14px;padding:12px;display:grid}.toolbar-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:12px;display:grid}.sidebar-toolbar{grid-template-columns:1fr;gap:8px;margin-bottom:0}.toolbar-field{margin:0}.compact-form{margin-top:8px}.sidebar-folder-form{border-top:1px solid #e2e8f0;padding-top:12px}.locked-note{color:#475569;font-size:.85rem}.locked-note a{color:#0f766e;font-weight:700}.inline-label{gap:8px;margin-bottom:0;display:grid}.premium-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:12px;margin-top:16px;display:grid}.premium-panel{border-radius:18px}.small-list{gap:8px;margin-top:10px;display:grid}.tool-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:12px;margin-top:6px;display:grid}.tools-caption{color:#64748b;margin-bottom:10px;font-size:.9rem}.tool-card{background:#fff;border:1px solid #e2e8f0;border-radius:14px;padding:14px}.tool-card p{margin-bottom:12px}.advanced-tools{border-top:1px solid 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p{margin:0}.plan-cards-grid{grid-template-columns:repeat(3,minmax(0,1fr));gap:12px;display:grid}.plan-card{border:1px solid var(--line);background:#fff;border-radius:18px;gap:10px;padding:16px;display:grid}.plan-card.active{border-color:#67e8f9;box-shadow:0 0 0 3px #67e8f933}.plan-card h3{color:var(--title-dark);margin:0 0 4px}.plan-price{color:var(--dash-title);margin:0;font-size:1.1rem;font-weight:700}.plan-limit{color:#475569;margin:0;font-size:.86rem}.plan-features{color:var(--dash-text);gap:6px;margin:0;padding:0;font-size:.86rem;list-style:none;display:grid}.legal-note{color:#94a3b8;text-align:center;margin-top:4px;font-size:.72rem}@media (max-width:920px){.hero-grid,.cards-3{grid-template-columns:1fr;display:grid}.cta-box{flex-direction:column;align-items:flex-start;padding:32px 26px}.nav{display:none}.header-actions{flex-direction:column}.dashboard-grid{grid-template-columns:1fr}.case-sidebar{min-height:auto;position:static}.case-workspace{min-height:auto}.plan-summary-grid,.plan-cards-grid,.premium-grid,.toolbar-grid,.tool-grid{grid-template-columns:1fr}.workspace-case-header{grid-template-columns:1fr;align-items:start;display:grid}}@media (max-width:640px){.container{width:min(1120px,100% - 28px)}.header-inner{padding:14px 0}.hero-grid{gap:34px;padding:58px 0 36px}.btn{width:100%}.hero-actions{flex-direction:column}.card,.faq-item,.chat-inner,.panel,.auth-card{padding:20px}}