:root{--color-primary-50:#f5f3ff;--color-primary-100:#ede9fe;--color-primary-200:#ddd6fe;--color-primary-300:#c4b5fd;--color-primary-400:#a78bfa;--color-primary-500:#8b5cf6;--color-primary-600:#7c3aed;--color-primary-700:#6d28d9;--color-primary-800:#5b21b6;--color-primary-900:#4c1d95;--color-white:#fff;--color-neutral-50:#fafafa;--color-neutral-100:#f4f4f5;--color-neutral-200:#e4e4e7;--color-neutral-300:#d4d4d8;--color-neutral-400:#a1a1aa;--color-neutral-500:#71717a;--color-neutral-600:#52525b;--color-neutral-700:#3f3f46;--color-neutral-800:#27272a;--color-neutral-900:#18181b;--color-danger-50:#fef2f2;--color-danger-100:#fee2e2;--color-danger-500:#ef4444;--color-danger-600:#dc2626;--color-danger-700:#b91c1c;--color-success-50:#f0fdf4;--color-success-600:#16a34a;--color-warning-50:#fffbeb;--color-warning-600:#d97706;--color-info-50:#eff6ff;--color-info-600:#2563eb;--text-xs:.75rem;--text-sm:.875rem;--text-base:1rem;--text-lg:1.125rem;--text-xl:1.25rem;--text-2xl:1.5rem;--text-3xl:1.875rem;--text-4xl:2.25rem;--space-1:.25rem;--space-2:.5rem;--space-3:.75rem;--space-4:1rem;--space-5:1.25rem;--space-6:1.5rem;--space-8:2rem;--space-10:2.5rem;--space-12:3rem;--space-16:4rem;--radius-sm:.375rem;--radius-md:.625rem;--radius-lg:1rem;--radius-full:9999px;--shadow-sm:0 1px 2px #18181b14;--shadow-md:0 8px 24px #18181b14;--shadow-lg:0 18px 48px #18181b1f;color:var(--color-neutral-800);background:var(--color-neutral-50);font-family:Inter,system-ui,-apple-system,BlinkMacSystemFont,Segoe UI,sans-serif}body{background:linear-gradient(135deg, var(--color-neutral-50) 0%, var(--color-primary-50) 100%);min-height:100vh;margin:0}*{box-sizing:border-box}button,input{font:inherit}.app-shell{grid-template-columns:1.2fr .8fr;min-height:100vh;display:grid}.hero-panel,.auth-panel{padding:var(--space-8);justify-content:center;align-items:center;display:flex}.hero-panel{background:linear-gradient(135deg, var(--color-primary-900) 0%, var(--color-primary-700) 100%);color:var(--color-white)}.hero-content{max-width:34rem}.hero-copy{font-size:var(--text-lg);color:var(--color-primary-100);line-height:1.7}.hero-actions{gap:var(--space-3);margin-top:var(--space-6);flex-wrap:wrap;display:flex}.eyebrow{text-transform:uppercase;letter-spacing:.2em;font-size:var(--text-xs);color:var(--color-primary-600);font-weight:600}.hero-panel .eyebrow{color:var(--color-primary-100)}.auth-card{background:var(--color-white);border-radius:var(--radius-lg);width:min(100%,28rem);padding:var(--space-6);box-shadow:var(--shadow-md)}.auth-card-header h2{margin:0 0 var(--space-2);color:var(--color-neutral-900)}.auth-card-header p{color:var(--color-neutral-600)}.field{gap:var(--space-2);margin-top:var(--space-4);flex-direction:column;display:flex}.field-label{font-size:var(--text-sm);color:var(--color-neutral-700);font-weight:600}.input{border:1px solid var(--color-neutral-200);border-radius:var(--radius-sm);min-height:2.75rem;padding:0 var(--space-3);background:var(--color-neutral-50)}.input:focus{outline:2px solid var(--color-primary-600);outline-offset:2px;border-color:var(--color-primary-600)}.input-error{border-color:var(--color-danger-500)}.input-toggle-wrapper{display:flex;position:relative}.input-with-toggle{width:100%;padding-right:2.75rem}.input-toggle-button{cursor:pointer;width:2.75rem;height:100%;color:var(--color-neutral-500);background:0 0;border:none;justify-content:center;align-items:center;padding:0;display:flex;position:absolute;top:0;right:0}.input-toggle-button:hover{color:var(--color-primary-600)}.input-toggle-button svg{width:1.125rem;height:1.125rem}.button{border-radius:var(--radius-md);min-height:2.75rem;padding:0 var(--space-4);cursor:pointer;border:1px solid #0000;font-weight:600;transition:transform .16s,box-shadow .16s}.button:hover:not(:disabled){box-shadow:var(--shadow-sm);transform:translateY(-1px)}.button:focus-visible{outline:2px solid var(--color-primary-600);outline-offset:2px}.button-primary{background:var(--color-primary-600);color:var(--color-white)}.button-secondary{background:var(--color-white);color:var(--color-primary-600);border-color:var(--color-primary-200)}.button-ghost{color:var(--color-neutral-700);background:0 0;border-color:#0000}.button-danger{background:var(--color-danger-600);color:var(--color-white)}.button-sm{min-height:2rem;padding:0 var(--space-3)}.button-lg{min-height:3rem;padding:0 var(--space-6)}.is-disabled{opacity:.4;cursor:not-allowed}.submit-button{width:100%;margin-top:var(--space-5)}.feedback{margin-top:var(--space-4);padding:var(--space-3);border-radius:var(--radius-sm);background:var(--color-danger-50);color:var(--color-danger-700);font-size:var(--text-sm)}.dashboard-grid{gap:var(--space-6);padding:0 var(--space-8) var(--space-8);grid-column:1/-1;grid-template-columns:repeat(3,minmax(0,1fr));display:grid}.card{background:var(--color-white);border-radius:var(--radius-lg);padding:var(--space-6);box-shadow:var(--shadow-sm)}.card-highlight{background:linear-gradient(135deg, var(--color-primary-50) 0%, var(--color-white) 100%)}.card-header{margin-bottom:var(--space-4);justify-content:space-between;align-items:center;display:flex}.metric{font-size:var(--text-4xl);color:var(--color-neutral-900);font-variant-numeric:tabular-nums;font-weight:700}.metric-caption{color:var(--color-neutral-500);margin-top:var(--space-2)}.badge{border-radius:var(--radius-full);padding:var(--space-1) var(--space-3);font-size:var(--text-xs);align-items:center;font-weight:600;display:inline-flex}.badge-success{background:var(--color-success-50);color:var(--color-success-600)}.badge-danger{background:var(--color-danger-50);color:var(--color-danger-600)}.badge-warning{background:var(--color-warning-50);color:var(--color-warning-600)}.badge-info{background:var(--color-info-50);color:var(--color-info-600)}.badge-neutral{background:var(--color-neutral-100);color:var(--color-neutral-700)}.empty-state{border:1px dashed var(--color-neutral-200);border-radius:var(--radius-md);padding:var(--space-6);text-align:center}.empty-state p{color:var(--color-neutral-500)}.empty-state-action{margin-top:var(--space-4)}.stack-list{padding-left:var(--space-5);color:var(--color-neutral-600);margin:0}.app-layout{grid-template-columns:260px 1fr;min-height:100vh;display:grid}.sidebar{background:linear-gradient(180deg, var(--color-primary-900) 0%, var(--color-primary-700) 100%);color:var(--color-white);padding:var(--space-6) var(--space-4);gap:var(--space-6);flex-direction:column;display:flex}.sidebar h2{font-size:var(--text-lg);color:var(--color-white);margin:0}.sidebar nav{gap:var(--space-1);flex-direction:column;flex:1;display:flex}.nav-link{padding:var(--space-2) var(--space-3);border-radius:var(--radius-sm);color:var(--color-primary-100);font-weight:500;font-size:var(--text-sm);text-decoration:none;transition:background .12s,color .12s;display:block}.nav-link:hover{color:var(--color-white);background:#ffffff14}.nav-link.active{background:var(--color-white);color:var(--color-primary-700)}.sidebar-user{padding-top:var(--space-4);font-size:var(--text-sm);color:var(--color-primary-100);border-top:1px solid #ffffff26;overflow:hidden}.sidebar-user strong{text-overflow:ellipsis;white-space:nowrap;display:block;overflow:hidden}.sidebar-logout{margin-top:var(--space-3);width:100%;color:var(--color-primary-100);border-color:#fff3;justify-content:center}.sidebar-logout:hover:not(:disabled){color:var(--color-white);background:#ffffff1a}.content-area{background:var(--color-neutral-50);padding:var(--space-8);overflow-y:auto}.page-stack{gap:var(--space-6);flex-direction:column;display:flex}.page-header{justify-content:space-between;align-items:center;gap:var(--space-4);flex-wrap:wrap;display:flex}.list-stack{gap:var(--space-3);flex-direction:column;display:flex}.list-item{padding:var(--space-4);border-radius:var(--radius-md);border:1px solid var(--color-neutral-200);color:var(--color-neutral-800);background:var(--color-white);justify-content:space-between;align-items:center;text-decoration:none;transition:border-color .12s,background .12s;display:flex}.list-item:hover{border-color:var(--color-primary-300);background:var(--color-primary-50)}.list-item span{color:var(--color-neutral-500);font-size:var(--text-sm)}.chat-layout{gap:var(--space-6);grid-template-columns:300px 1fr;height:calc(100vh - 6rem);min-height:32rem;display:grid}.chat-history-panel{background:var(--color-white);border-radius:var(--radius-lg);box-shadow:var(--shadow-sm);flex-direction:column;display:flex;overflow:hidden}.chat-history-header{padding:var(--space-4);border-bottom:1px solid var(--color-neutral-200)}.chat-new-button{justify-content:center;gap:var(--space-2);width:100%;border-radius:var(--radius-full)!important}.chat-history-list{padding:var(--space-3) var(--space-2);gap:var(--space-1);flex-direction:column;flex:1;display:flex;overflow-y:auto}.chat-history-group-label{padding:var(--space-3) var(--space-3) var(--space-1);font-size:var(--text-xs);text-transform:uppercase;letter-spacing:.05em;color:var(--color-neutral-400);font-weight:600}.chat-history-group-label:first-child{padding-top:var(--space-1)}.chat-history-item{padding:var(--space-3);border-radius:var(--radius-sm);color:var(--color-neutral-700);font-size:var(--text-sm);text-overflow:ellipsis;white-space:nowrap;cursor:pointer;text-decoration:none;display:block;overflow:hidden}.chat-history-item:hover{background:var(--color-neutral-50)}.chat-history-item.active{background:var(--color-primary-50);color:var(--color-primary-700);font-weight:600}.chat-main{background:var(--color-white);border-radius:var(--radius-lg);box-shadow:var(--shadow-sm);flex-direction:column;display:flex;overflow:hidden}.chat-main-header{padding:var(--space-4) var(--space-6);border-bottom:1px solid var(--color-neutral-200);justify-content:space-between;align-items:center;display:flex}.chat-shell{flex-direction:column;height:100%;display:flex}.chat-thread{padding:var(--space-6);gap:var(--space-4);flex-direction:column;flex:1;display:flex;overflow-y:auto}.chat-bubble{max-width:70%;padding:var(--space-3) var(--space-4);border-radius:var(--radius-lg);gap:var(--space-1);flex-direction:column;display:flex}.chat-bubble strong{font-size:var(--text-xs);text-transform:uppercase;letter-spacing:.05em;opacity:.7}.chat-bubble p{white-space:pre-wrap;margin:0;line-height:1.5}.chat-bubble.user{background:var(--color-primary-600);color:var(--color-white);border-bottom-right-radius:var(--radius-sm);align-self:flex-end}.chat-bubble.assistant{background:var(--color-neutral-50);border:1px solid var(--color-neutral-200);color:var(--color-neutral-800);border-bottom-left-radius:var(--radius-sm);align-self:flex-start}.chat-bubble.typing{opacity:.6;font-style:italic}.empty-chat{color:var(--color-neutral-500);text-align:center;margin:auto}.chat-welcome{justify-content:center;align-items:center;gap:var(--space-6);padding:var(--space-8);text-align:center;background:radial-gradient(ellipse at center, var(--color-primary-50) 0%, transparent 65%);flex-direction:column;flex:1;display:flex}.chat-welcome-icon{background:radial-gradient(circle, var(--color-primary-200) 0%, var(--color-primary-50) 70%);width:4rem;height:4rem;color:var(--color-primary-600);border-radius:50%;justify-content:center;align-items:center;animation:3s ease-in-out infinite welcome-pulse;display:flex}.chat-welcome-icon svg{width:1.75rem;height:1.75rem}.chat-welcome h2{font-size:var(--text-2xl);color:var(--color-neutral-900);margin:0}.chat-welcome h2 span{color:var(--color-primary-600)}.chat-welcome>p{color:var(--color-neutral-500);max-width:26rem;margin:-var(--space-3) 0 0}.chat-suggestions{justify-content:center;gap:var(--space-2);flex-wrap:wrap;max-width:40rem;display:flex}.chat-suggestion-chip{align-items:center;gap:var(--space-2);padding:var(--space-2) var(--space-4);border-radius:var(--radius-full);border:1px solid var(--color-neutral-200);background:var(--color-white);color:var(--color-neutral-700);font-size:var(--text-sm);cursor:pointer;font-weight:500;transition:border-color .15s,transform .15s,box-shadow .15s;display:inline-flex}.chat-suggestion-chip:hover:not(:disabled){border-color:var(--color-primary-300);color:var(--color-primary-700);box-shadow:var(--shadow-sm);transform:translateY(-1px)}.chat-suggestion-chip svg{width:1rem;height:1rem;color:var(--color-primary-600)}.chat-composer{padding:var(--space-4) var(--space-6) var(--space-6)}.chat-composer-card{gap:var(--space-2);border:1px solid var(--color-primary-200);border-radius:var(--radius-lg);padding:var(--space-3) var(--space-4);background:var(--color-white);box-shadow:0 0 0 4px var(--color-primary-50);flex-direction:column;transition:box-shadow .15s,border-color .15s;display:flex}.chat-composer-card:focus-within{border-color:var(--color-primary-400);box-shadow:0 0 0 4px var(--color-primary-100)}.chat-input{resize:none;width:100%;min-height:2.5rem;max-height:8rem;font-family:inherit;font-size:var(--text-base);background:0 0;border:none;outline:none;padding:0}.chat-composer-toolbar{justify-content:flex-end;align-items:center;display:flex}.chat-composer-toolbar .button{border-radius:var(--radius-full)}.table{border-collapse:collapse;width:100%}.table th,.table td{text-align:left;padding:var(--space-3) var(--space-4);border-bottom:1px solid var(--color-neutral-100)}.table thead th{background:var(--color-neutral-50);color:var(--color-neutral-600);font-size:var(--text-xs);text-transform:uppercase;letter-spacing:.05em}.table tbody tr:hover{background:var(--color-primary-50)}.auth-screen{justify-content:center;align-items:center;gap:var(--space-6);min-height:100vh;padding:var(--space-6);flex-direction:column;display:flex}.auth-brand{align-items:center;gap:var(--space-2);font-size:var(--text-lg);color:var(--color-primary-700);font-weight:700;text-decoration:none;display:inline-flex}.auth-brand:hover{color:var(--color-primary-600)}.auth-brand-arrow{font-size:var(--text-base);transition:transform .16s}.auth-brand:hover .auth-brand-arrow{transform:translate(-3px)}.helper-link{text-align:center;margin-top:var(--space-4);font-size:var(--text-sm);color:var(--color-neutral-600)}.helper-link a{color:var(--color-primary-600);font-weight:600;text-decoration:none}.helper-link a:hover{text-decoration:underline}.landing{overflow-x:hidden}.landing-nav{padding:var(--space-5) var(--space-10);z-index:20;-webkit-backdrop-filter:blur(10px);background:#fafafabf;border-bottom:1px solid #18181b0f;justify-content:space-between;align-items:center;display:flex;position:sticky;top:0}.landing-nav .brand{font-size:var(--text-xl);color:var(--color-primary-700);font-weight:700;text-decoration:none}.landing-nav-actions{gap:var(--space-3);display:flex}.landing-hero{padding:var(--space-16) var(--space-10) var(--space-20);background:linear-gradient(160deg,#f4effc 0%,#fdf0f4 45%,#eef1fd 100%);position:relative;overflow:hidden}.landing-hero-blob{filter:blur(70px);opacity:.5;pointer-events:none;border-radius:50%;animation:9s ease-in-out infinite blob-float;position:absolute}.landing-hero-blob-1{background:var(--color-primary-200);width:24rem;height:24rem;top:-8rem;left:-6rem}.landing-hero-blob-2{background:#f9c9dc;width:20rem;height:20rem;animation-delay:2s;bottom:-9rem;right:-4rem}.landing-hero-grid{z-index:1;gap:var(--space-10);grid-template-columns:1.05fr .95fr;align-items:center;max-width:72rem;margin:0 auto;display:grid;position:relative}.landing-hero-copy{text-align:left}.landing-hero h1{font-size:var(--text-4xl);margin:0 0 var(--space-4);color:var(--color-neutral-900);line-height:1.15}.landing-hero-copy>p{font-size:var(--text-lg);color:var(--color-neutral-600);max-width:36rem;margin:0 0 var(--space-8);line-height:1.6}.landing-hero-actions{gap:var(--space-4);flex-wrap:wrap;display:flex}.landing-hero-stats{gap:var(--space-8);margin-top:var(--space-10);padding-top:var(--space-6);border-top:1px solid var(--color-neutral-200);display:flex}.landing-hero-stats strong{font-size:var(--text-2xl);color:var(--color-neutral-900);display:block}.landing-hero-stats span{font-size:var(--text-sm);color:var(--color-neutral-500)}.landing-hero-visual{padding:var(--space-6) var(--space-4) 0;position:relative}.landing-browser-frame{background:var(--color-white);border-radius:var(--radius-lg);box-shadow:0 30px 60px -20px #4c1d9559, var(--shadow-lg);animation:6s ease-in-out infinite float-y;overflow:hidden;transform:rotate(-1.4deg)}.landing-browser-bar{align-items:center;gap:var(--space-2);padding:var(--space-3) var(--space-4);background:var(--color-neutral-50);border-bottom:1px solid var(--color-neutral-100);display:flex}.landing-browser-dot{border-radius:50%;flex-shrink:0;width:.65rem;height:.65rem}.landing-browser-dot.dot-red{background:#ff5f57}.landing-browser-dot.dot-yellow{background:#febc2e}.landing-browser-dot.dot-green{background:#28c840}.landing-browser-url{background:var(--color-white);border:1px solid var(--color-neutral-200);border-radius:var(--radius-full);padding:var(--space-1) var(--space-8);font-size:var(--text-xs);color:var(--color-neutral-500);margin:0 auto}.landing-hero-image{width:100%;display:block}.landing-hero-tag{z-index:2;align-items:center;gap:var(--space-1);background:var(--color-white);border-radius:var(--radius-full);padding:var(--space-2) var(--space-4);font-size:var(--text-sm);color:var(--color-neutral-700);box-shadow:var(--shadow-md);white-space:nowrap;font-weight:600;animation:5s ease-in-out infinite float-y;display:inline-flex;position:absolute}.landing-hero-tag-tl{top:0;left:-.5rem}.landing-hero-tag-tr{animation-delay:1s;top:2.5rem;right:-1rem}.landing-hero-float-card{background:var(--color-white);color:var(--color-neutral-800);border-radius:var(--radius-md);box-shadow:var(--shadow-md);padding:var(--space-3) var(--space-4);gap:var(--space-1);flex-direction:column;animation:6s ease-in-out .3s infinite float-y;display:flex;position:absolute;bottom:-1.25rem;left:1rem}.landing-hero-float-card p{font-size:var(--text-sm);margin:0;font-weight:600}.landing-section-heading{text-align:center;max-width:40rem;margin:0 auto var(--space-10)}.landing-section-heading h2{font-size:var(--text-3xl);color:var(--color-neutral-900);margin:var(--space-2) 0 0}.landing-channels{padding:var(--space-16) var(--space-10);max-width:72rem;margin:0 auto}.landing-channels-grid{gap:var(--space-6);grid-template-columns:repeat(3,minmax(0,1fr));display:grid}.landing-channel-card{border-radius:var(--radius-lg);background:var(--color-white);box-shadow:var(--shadow-sm);transition:transform .22s,box-shadow .22s;overflow:hidden}.landing-channel-card:hover{box-shadow:var(--shadow-lg);transform:translateY(-6px)}.landing-channel-card img{object-fit:cover;width:100%;height:11rem;display:block}.landing-channel-body{padding:var(--space-5)}.landing-channel-body h3{color:var(--color-primary-700);margin:0 0 var(--space-2)}.landing-channel-body p{color:var(--color-neutral-600);margin:0;line-height:1.5}.landing-features{padding:var(--space-16) var(--space-10);max-width:72rem;margin:0 auto}.landing-features-grid{gap:var(--space-6);grid-template-columns:repeat(3,minmax(0,1fr));display:grid}.landing-features-grid .card{height:100%;transition:transform .22s,box-shadow .22s}.landing-features-grid .card:hover{box-shadow:var(--shadow-md);transform:translateY(-4px)}.feature-icon{width:2rem;height:2rem;color:var(--color-primary-600);margin-bottom:var(--space-3)}.landing-features .card h3{color:var(--color-primary-700);margin:0 0 var(--space-2)}.landing-steps{padding:var(--space-16) var(--space-10);background:var(--color-primary-50)}.landing-steps-grid{gap:var(--space-8);grid-template-columns:repeat(3,minmax(0,1fr));max-width:72rem;margin:0 auto;display:grid}.landing-step{text-align:center}.landing-step-number{background:var(--color-primary-600);width:2.75rem;height:2.75rem;color:var(--color-white);font-weight:700;font-size:var(--text-lg);margin-bottom:var(--space-4);border-radius:50%;justify-content:center;align-items:center;display:inline-flex}.landing-step h3{color:var(--color-neutral-900);margin:0 0 var(--space-2)}.landing-step p{color:var(--color-neutral-600);line-height:1.5}.landing-testimonials{padding:var(--space-16) var(--space-10);max-width:72rem;margin:0 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