@import "https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700&display=swap";:root{--bg-primary:#000;--bg-secondary:#161618;--bg-tertiary:#1c1c1e;--glass-bg:#28282866;--glass-border:#ffffff14;--glass-hover:#3c3c3c80;--accent-blue:#0a84ff;--accent-indigo:#5e5ce6;--accent-emerald:#32d74b;--accent-rose:#ff453a;--accent-amber:#ff9f0a;--text-primary:#f5f5f7;--text-secondary:#86868b;--text-muted:#515154;--gradient-primary:linear-gradient(135deg, #0a84ff, #5e5ce6);--gradient-hero:radial-gradient(ellipse 70% 60% at 50% -20%, #0a84ff26 0%, #5e5ce61a 40%, transparent 70%);--radius-sm:8px;--radius-md:14px;--radius-lg:20px;--radius-xl:32px;--shadow-blue:0 0 40px #0a84ff40;--btn-glow:0 4px 12px #0a84ff4d;--glow-primary:radial-gradient(circle, #0a84ff1a 0%, transparent 60%);--glow-secondary:radial-gradient(circle, #5e5ce614 0%, transparent 60%);--font-sans:-apple-system, BlinkMacSystemFont, "SF Pro Text", "Segoe UI", Roboto, Helvetica, Arial, sans-serif;--font-display:-apple-system, BlinkMacSystemFont, "SF Pro Display", "Segoe UI", Roboto, Helvetica, Arial, sans-serif}[data-theme=light]{--bg-primary:#f8eede;--bg-secondary:#fcf8f2;--bg-tertiary:#ebe0d0;--glass-bg:#ffffffa6;--glass-border:#3a2e2a14;--glass-hover:#ffffffe6;--accent-blue:#4a7a96;--accent-indigo:#6d6875;--accent-emerald:#5e8c61;--accent-rose:#c25953;--accent-amber:#d98324;--text-primary:#3a2e2a;--text-secondary:#7a6859;--text-muted:#a3968a;--gradient-primary:linear-gradient(135deg, #4a7a96, #6d6875);--gradient-hero:radial-gradient(ellipse 70% 60% at 50% -20%, #4a7a9626 0%, #6d68751a 40%, transparent 70%);--shadow-blue:0 0 40px #4a7a9626;--btn-glow:0 4px 12px #4a7a9640;--glow-primary:radial-gradient(circle, #4a7a961a 0%, transparent 60%);--glow-secondary:radial-gradient(circle, #6d687514 0%, transparent 60%)}*,:before,:after{box-sizing:border-box;margin:0;padding:0}body{font-family:var(--font-sans);background:var(--bg-primary);color:var(--text-primary);-webkit-font-smoothing:antialiased;letter-spacing:-.01em;min-height:100vh;transition:background .6s cubic-bezier(.16,1,.3,1),color .6s cubic-bezier(.16,1,.3,1);overflow-x:clip}h1,h2,h3,h4,h5,h6{font-family:var(--font-display);letter-spacing:-.02em;font-weight:600}img,video{max-width:100%}button{cursor:pointer;font-family:var(--font-sans);border:none;outline:none}input,textarea{font-family:var(--font-sans);border:none;outline:none}::-webkit-scrollbar{width:6px}::-webkit-scrollbar-track{background:var(--bg-primary)}::-webkit-scrollbar-thumb{background:#fff3;border-radius:99px}.gradient-text{background:var(--text-primary);-webkit-text-fill-color:transparent;-webkit-background-clip:text;background-clip:text}.glass{background:var(--glass-bg);-webkit-backdrop-filter:blur(40px)saturate(150%);border:1px solid var(--glass-border);border-radius:var(--radius-lg);box-shadow:0 8px 32px #0000004d}.glass:hover{background:var(--glass-hover)}.btn{letter-spacing:-.01em;border-radius:99px;justify-content:center;align-items:center;gap:8px;padding:12px 24px;font-size:.95rem;font-weight:500;transition:all .4s cubic-bezier(.16,1,.3,1);display:inline-flex}.btn-primary{background:var(--text-primary);color:var(--bg-primary);box-shadow:0 4px 14px #0000001a}.btn-primary:hover{transform:scale(1.02);box-shadow:0 6px 20px #00000026}.btn-primary:active{transform:scale(.98)}.btn-outline{border:1px solid var(--glass-border);color:var(--text-primary);background:0 0}.btn-outline:hover{background:var(--glass-hover);border-color:var(--text-primary)}.btn-danger{color:var(--accent-rose);background:#ff453a26;border:1px solid #ff453a4d}.btn-danger:hover{background:#ff453a40}.btn-success{color:var(--accent-emerald);background:#32d74b26;border:1px solid #32d74b4d}.btn-success:hover{background:#32d74b40}.btn-icon{border-radius:50%;width:44px;height:44px;padding:0}.btn-lg{border-radius:99px;padding:16px 36px;font-size:1rem}.btn:disabled{opacity:.5;cursor:not-allowed;transform:none!important}.input{background:var(--bg-secondary);border:1px solid var(--glass-border);border-radius:var(--radius-md);width:100%;color:var(--text-primary);padding:14px 18px;font-size:.95rem;transition:all .4s cubic-bezier(.16,1,.3,1)}.input:focus{border-color:var(--accent-blue);box-shadow:0 0 0 3px #0a84ff33}.input::placeholder{color:var(--text-muted)}.badge{border-radius:99px;align-items:center;gap:4px;padding:4px 12px;font-size:.75rem;font-weight:500;display:inline-flex}.badge-blue{color:var(--accent-blue);background:#0a84ff26;border:1px solid #0a84ff33}.badge-indigo{color:var(--accent-indigo);background:#5e5ce626;border:1px solid #5e5ce633}.badge-emerald{color:var(--accent-emerald);background:#32d74b26;border:1px solid #32d74b33}.badge-rose{color:var(--accent-rose);background:#ff453a26;border:1px solid #ff453a33}.badge-amber{color:var(--accent-amber);background:#ff9f0a26;border:1px solid #ff9f0a33}.pulse-dot{border-radius:50%;width:8px;height:8px;animation:2s infinite pulse-dot;display:inline-block}.pulse-dot.green{background:var(--accent-emerald);box-shadow:0 0 #32d74b66}.pulse-dot.amber{background:var(--accent-amber);box-shadow:0 0 #ff9f0a66}@keyframes pulse-dot{0%,to{opacity:.4;transform:scale(1);box-shadow:0 0}50%{opacity:1;transform:scale(1.2);box-shadow:0 0 0 6px #0000}}.spinner{border:3px solid #ffffff1a;border-top-color:var(--text-secondary);border-radius:50%;width:40px;height:40px;animation:.8s linear infinite spin}@keyframes spin{to{transform:rotate(360deg)}}@keyframes fade-up{0%{opacity:0;transform:translateY(32px)scale(.98)}to{opacity:1;transform:translateY(0)scale(1)}}@keyframes fade-in{0%{opacity:0}to{opacity:1}}@keyframes float{0%,to{transform:translateY(0)}50%{transform:translateY(-10px)}}.fade-up{opacity:0;transform:translateY(32px)scale(.98)}.fade-up.is-visible{animation:.8s cubic-bezier(.16,1,.3,1) forwards fade-up}.fade-in{opacity:0}.fade-in.is-visible{animation:.6s cubic-bezier(.16,1,.3,1) forwards fade-in}.subject-pill{cursor:pointer;border:1px solid var(--glass-border);background:var(--glass-bg);color:var(--text-secondary);-webkit-user-select:none;user-select:none;border-radius:99px;align-items:center;gap:6px;padding:8px 16px;font-size:.85rem;font-weight:500;transition:all .4s cubic-bezier(.16,1,.3,1);display:inline-flex}.subject-pill:hover{color:var(--text-primary);border-color:#fff3}.subject-pill.selected{background:var(--text-primary);border-color:var(--text-primary);color:#000}.subject-pill.selected svg{color:#000}.chat-bubble{word-break:break-word;border-radius:18px;max-width:75%;padding:10px 14px;font-size:.95rem;line-height:1.4;animation:.2s fade-up}.chat-bubble.mine{background:var(--accent-blue);color:#fff;border:none;border-bottom-right-radius:4px;align-self:flex-end}.chat-bubble.theirs{background:var(--bg-secondary);color:var(--text-primary);border:1px solid var(--glass-border);border-bottom-left-radius:4px;align-self:flex-start}.video-grid{grid-template-columns:1fr;gap:16px;height:100%;display:grid}.video-grid.dual{grid-template-columns:1fr 1fr}.video-wrapper{border-radius:var(--radius-lg);border:1px solid var(--glass-border);aspect-ratio:16/9;background:#000;position:relative;overflow:hidden}.video-wrapper video{object-fit:cover;width:100%;height:100%;display:block}.video-label{-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px);color:#fff;background:#00000080;border-radius:99px;padding:4px 10px;font-size:.8rem;font-weight:500;position:absolute;bottom:12px;left:12px}.video-placeholder{height:100%;color:var(--text-muted);flex-direction:column;justify-content:center;align-items:center;gap:12px;display:flex}.control-bar{-webkit-backdrop-filter:blur(40px)saturate(150%);border-top:1px solid var(--glass-border);background:#0009;justify-content:center;align-items:center;gap:16px;padding:20px;display:flex}.ctrl-btn{width:56px;height:56px;color:var(--text-primary);background:#ffffff1a;border:1px solid #ffffff0d;border-radius:50%;flex-direction:column;justify-content:center;align-items:center;font-size:1.2rem;transition:all .4s cubic-bezier(.16,1,.3,1);display:flex}.ctrl-btn:hover{background:#fff3;transform:scale(1.05)}.ctrl-btn.active{color:#000;background:#fff}.ctrl-btn.end{background:var(--accent-rose);color:#fff;border:none;border-radius:99px;width:auto;padding:0 24px;font-size:1rem;font-weight:500}.ctrl-btn.end:hover{background:#ff5e56;transform:scale(1.05)}.nav-links{display:none}@media (width>=768px){.nav-links{display:flex}}.nav-link{color:var(--text-secondary);cursor:pointer;font-size:.95rem;font-weight:500;transition:color .4s cubic-bezier(.16,1,.3,1)}.nav-link:hover{color:var(--text-primary)}.footer-link{color:var(--text-secondary);cursor:pointer;font-size:.9rem;transition:color .4s cubic-bezier(.16,1,.3,1)}.footer-link:hover{color:var(--text-primary)}.social-icon{cursor:pointer;width:32px;height:32px;color:var(--text-secondary);background:#ffffff0d;border-radius:50%;justify-content:center;align-items:center;font-size:.9rem;transition:all .4s cubic-bezier(.16,1,.3,1);display:flex}.social-icon:hover{color:var(--text-primary);background:#ffffff1a;transform:scale(1.1)}.footer-grid{grid-template-columns:2fr 1fr 1fr 1fr 1fr;gap:48px;margin-bottom:64px;display:grid}@media (width<=1024px){.footer-grid{grid-template-columns:1fr 1fr 1fr}}@media (width<=768px){.footer-grid{grid-template-columns:1fr 1fr;gap:32px}}@media (width<=480px){.footer-grid{grid-template-columns:1fr}}