:root{--ambient-scene-fade-duration: .9s;--bg: #ffffff;--text: #111827;--text-muted: #4b5563;--card-bg: #ffffff;--card-border: #cbd5e1;--input-text: #111827;--placeholder: #6b7280;--accent: #2563eb;--accent-hover: #1d4ed8;--error: #dc2626;--scrim: linear-gradient( to bottom, rgba(255, 255, 255, .8), rgba(255, 255, 255, .65), rgba(255, 255, 255, .8) )}@media(prefers-color-scheme:dark){:root{--bg: #111827;--text: #ffffff;--text-muted: #9ca3af;--card-bg: #1f2937;--card-border: #374151;--input-text: #ffffff;--placeholder: #9ca3af;--accent: #3b82f6;--accent-hover: #2563eb;--error: #f87171;--scrim: linear-gradient( to bottom, rgba(17, 24, 39, .75), rgba(17, 24, 39, .55), rgba(17, 24, 39, .75) )}}*{box-sizing:border-box}html,body{margin:0;padding:0;min-height:100vh}body{background-color:var(--bg);color:var(--text);font-family:ui-sans-serif,system-ui,-apple-system,Segoe UI,Roboto,Helvetica,Arial,sans-serif}.gateway{position:relative;display:flex;flex-direction:column;min-height:100vh}#water-host{position:absolute;inset:0;z-index:0;overflow:hidden;pointer-events:none}#water-host canvas{display:block;width:100%;height:100%}.scrim{position:absolute;inset:0;z-index:1;pointer-events:none;background:var(--scrim)}.gateway-main{position:relative;z-index:10;display:flex;flex:1;flex-direction:column;align-items:center;justify-content:center;padding:3rem 1.5rem}.gateway-card{display:flex;width:100%;max-width:28rem;flex-direction:column;align-items:center;gap:1.5rem;text-align:center}.gateway-logo{height:4rem;width:4rem}.gateway-title{margin:0;font-size:1.875rem;line-height:2.25rem;font-weight:600;color:var(--text)}.gateway-subtitle{margin:0;font-size:1.125rem;color:var(--text-muted)}.gateway-form{display:flex;width:100%;flex-direction:column;gap:1rem}.gateway-input{width:100%;border-radius:.5rem;border:1px solid var(--card-border);background-color:var(--card-bg);padding:.75rem 1rem;font-size:1rem;color:var(--input-text)}.gateway-input::placeholder{color:var(--placeholder)}.gateway-input:focus{outline:none;border-color:var(--accent);box-shadow:0 0 0 2px var(--accent)}.gateway-input:disabled{opacity:.6}.gateway-button{display:flex;align-items:center;justify-content:center;gap:.5rem;border:none;cursor:pointer;border-radius:.5rem;background-color:var(--accent);padding:.75rem 1.5rem;font-size:1rem;font-weight:500;color:#fff}.gateway-button:hover:not(:disabled){background-color:var(--accent-hover)}.gateway-button:disabled{opacity:.6;cursor:default}.gateway-message{min-height:1.25rem;margin:0;font-size:.875rem}.gateway-message[data-kind=error]{color:var(--error)}.gateway-message[data-kind=info]{color:var(--text-muted)}