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var(--surface-border-strong);background:var(--surface-elevated);width:min(480px,100%);box-shadow:var(--surface-shadow-xl);-webkit-backdrop-filter:blur(12px);backdrop-filter:blur(12px);border-radius:28px;padding:36px 32px;position:relative}.auth-page-watermark .auth-card{width:min(466px,100%)}.auth-brand{align-items:center;gap:14px;margin-bottom:0;display:flex}.auth-brand-logo{object-fit:contain;background:linear-gradient(145deg,var(--brand-chip-start),var(--brand-chip-end));border-radius:16px;width:52px;height:52px;padding:8px}.auth-brand-eyebrow{letter-spacing:.06em;text-transform:uppercase;color:var(--accent-2);font-size:12px;font-weight:700}.auth-brand-title{letter-spacing:-.04em;color:var(--text);margin-top:3px;font-size:22px;font-weight:800}.auth-divider{background:linear-gradient(90deg,transparent,var(--line),transparent);height:1px;margin:22px 0}.auth-eyebrow{border-radius:var(--radius-full);border:1px solid var(--surface-border-strong);background:var(--surface-muted);color:var(--accent-2);letter-spacing:.04em;text-transform:uppercase;justify-content:center;align-items:center;margin-bottom:12px;padding:7px 14px;font-size:12px;font-weight:700;display:inline-flex}.auth-title{letter-spacing:-.04em;color:var(--text);margin:0 0 10px;font-size:clamp(24px,4vw,32px);font-weight:800;line-height:1.1}.auth-subtitle{color:var(--text-soft);margin:0 0 24px;font-size:14px;line-height:1.65}.auth-form{text-align:left;gap:16px;display:grid}.auth-status-row{flex-wrap:wrap;gap:8px;margin-bottom:18px;display:flex}.auth-field-label{color:var(--text);margin-bottom:6px;font-size:13px;font-weight:700;display:block}.auth-input{border:1px solid var(--line);border-radius:var(--radius-md);background:var(--bg-card);width:100%;min-height:48px;color:var(--text);transition:border-color var(--transition-fast),box-shadow var(--transition-fast),background-color var(--transition-fast);padding:0 16px;font-family:inherit;font-size:15px}.auth-input:focus{border-color:var(--accent-2);box-shadow:var(--focus-ring);outline:none}.auth-input::placeholder{color:var(--muted)}.auth-primary-btn{background:linear-gradient(140deg,var(--primary-start),var(--primary-end));color:#fff;cursor:pointer;width:100%;min-height:50px;transition:opacity var(--transition-fast),transform var(--transition-fast);border:none;border-radius:18px;justify-content:center;align-items:center;gap:8px;padding:0 20px;font-family:inherit;font-size:15px;font-weight:700;display:flex}.auth-primary-btn:hover:not(:disabled){transform:translateY(-1px)}.auth-primary-btn:disabled{opacity:.4;cursor:not-allowed}.auth-ghost-btn{border:1px solid var(--line);background:var(--surface-soft);width:100%;min-height:46px;color:var(--muted);cursor:pointer;transition:all var(--transition-fast);border-radius:16px;justify-content:center;align-items:center;gap:8px;padding:0 16px;font-family:inherit;font-size:14px;font-weight:600;display:flex}.auth-ghost-btn:hover:not(:disabled){background:var(--surface-soft-hover);color:var(--text);border-color:var(--accent-2)}.auth-error{border-radius:var(--radius-sm);background:var(--danger-bg);border:1px solid var(--danger-line);color:var(--danger);padding:10px 14px;font-size:13px;font-weight:600}.auth-note{border:1px solid var(--surface-border);background:var(--surface-note);color:var(--muted);text-align:left;border-radius:18px;margin-top:18px;padding:12px 14px;font-size:13px;line-height:1.6}.auth-note a{font-weight:700}.auth-actions{gap:12px;display:flex}.code-grid{grid-template-columns:repeat(6,minmax(0,1fr));gap:8px;display:grid}.code-input{aspect-ratio:1/1.1;text-align:center;border:1px solid var(--line);border-radius:var(--radius-sm);background:var(--bg-card);color:var(--text);transition:border-color var(--transition-fast),box-shadow var(--transition-fast);font-size:clamp(1.2rem,2vw,1.5rem);font-weight:800}.code-input:focus{border-color:var(--accent-2);box-shadow:var(--focus-ring);outline:none}.auth-status-chip{border:1px solid var(--line);border-radius:var(--radius-full);background:var(--bg-soft);color:var(--accent-2);align-items:center;gap:6px;padding:6px 12px;font-size:13px;font-weight:600;display:inline-flex}.auth-mock-chip{border:1px solid var(--danger-soft-line);border-radius:var(--radius-full);background:var(--danger-soft-bg);color:var(--danger);align-items:center;gap:6px;padding:6px 12px;font-size:13px;font-weight:600;display:inline-flex}.chat-page{background:var(--bg-main);flex-direction:column;height:100vh;padding:18px;display:flex;overflow:hidden}.chat-shell{flex-direction:column;flex:1;gap:16px;width:100%;min-height:0;display:flex}.chat-shell-body{flex-direction:column;flex:1;min-height:0;display:flex}.chat-thread{border:1px solid var(--surface-border);background:var(--surface-glass);min-height:0;box-shadow:var(--surface-shadow-xl);border-radius:28px;flex-direction:column;flex:1;display:flex;position:relative;overflow:hidden}.chat-header{border:1px solid var(--surface-border);background:var(--surface-glass);min-height:72px;box-shadow:var(--surface-shadow-lg);border-radius:24px;flex-shrink:0;justify-content:space-between;align-items:center;gap:12px;padding:14px 18px;display:flex}.chat-header-left{align-items:center;gap:10px;min-width:0;display:flex}.chat-header-copy{gap:2px;display:grid}.chat-header-logo{object-fit:contain;flex-shrink:0;width:28px;height:28px}.chat-header-title{letter-spacing:-.03em;white-space:nowrap;margin:0;font-size:17px;font-weight:800}.chat-header-subtitle{color:var(--muted);margin:0;font-size:12px;line-height:1.3}.chat-header-right{align-items:center;gap:8px;min-width:0;display:flex}.chat-header-email{text-overflow:ellipsis;white-space:nowrap;max-width:280px;color:var(--muted);font-size:13px;overflow:hidden}.chat-header-btn{border:1px solid var(--line);background:var(--surface-soft);color:var(--muted);cursor:pointer;transition:all var(--transition-fast);border-radius:14px;align-items:center;gap:6px;padding:9px 13px;font-family:inherit;font-size:13px;font-weight:600;display:flex}.chat-header-btn:hover{background:var(--surface-soft-hover);color:var(--text)}.chat-theme-btn{width:34px;height:34px;color:var(--muted);cursor:pointer;transition:color var(--transition-fast),transform var(--transition-fast),opacity var(--transition-fast);background:0 0;border:none;border-radius:999px;justify-content:center;align-items:center;padding:0;display:inline-flex}.chat-theme-btn:hover{color:var(--text);transform:translateY(-1px)}.chat-theme-btn[aria-pressed=true]{color:var(--accent-2)}.chat-scroll{flex:1;padding:28px 32px 20px;overflow-y:auto}.chat-scroll-inner{flex-direction:column;gap:16px;width:100%;min-height:100%;display:flex}.chat-messages{flex-direction:column;justify-content:flex-end;min-height:100%;padding-bottom:12px;display:flex}.welcome-screen{text-align:center;flex-direction:column;justify-content:flex-end;align-items:center;gap:28px;min-height:100%;padding:96px 0 12px;animation:.4s fadeInUp;display:flex}.welcome-hero-card{width:100%;max-width:680px;margin:auto 0 0}.welcome-brand{align-items:center;gap:14px;margin-bottom:18px;display:inline-flex}.welcome-brand-logo{object-fit:contain;flex-shrink:0;width:72px;height:72px}.welcome-brand-copy{text-align:left;gap:4px;display:grid}.welcome-brand-label{letter-spacing:.08em;text-transform:uppercase;color:var(--accent-2);font-size:12px;font-weight:700}.welcome-brand-name{letter-spacing:-.04em;color:var(--text);font-size:28px;font-weight:800}.welcome-title{letter-spacing:-.04em;color:var(--text);margin:0;font-size:clamp(32px,4vw,48px);font-weight:800;line-height:1.02}.welcome-subtitle{color:#516273;max-width:620px;margin:0 auto;font-size:16px;line-height:1.65}.message-row{align-items:flex-start;gap:14px;animation:.25s messageSlideIn;display:flex}.message-row.user{flex-direction:row-reverse}.msg-avatar-col{flex-shrink:0;width:32px;padding-top:2px}.msg-avatar{border-radius:50%;justify-content:center;align-items:center;width:32px;height:32px;display:flex}.msg-avatar-user{background:linear-gradient(135deg,var(--user-bubble-start),var(--user-bubble-end));color:var(--user-bubble-text)}.msg-avatar-assistant{background:var(--assistant-avatar-bg);border:1px solid var(--assistant-avatar-border);overflow:hidden}.msg-avatar-assistant img{object-fit:cover;width:100%;height:100%;display:block}.msg-content-col{flex:1;min-width:0;max-width:720px}.msg-role-label{letter-spacing:.08em;text-transform:uppercase;color:var(--muted);margin:0 0 6px;font-size:11px;font-weight:700}.message-row.user .msg-content-col{flex-direction:column;align-items:flex-end;display:flex}.msg-bubble{white-space:pre-wrap;word-break:break-word;box-shadow:var(--shadow-md);border-radius:24px;padding:14px 18px;line-height:1.65}.msg-bubble.user{background:linear-gradient(135deg,var(--user-bubble-start),var(--user-bubble-end));color:var(--user-bubble-text);border:1px solid var(--user-bubble-border)}.msg-bubble.assistant{background:var(--assistant-bubble-bg);border:1px solid var(--assistant-bubble-border);color:var(--text)}.msg-part-text{white-space:pre-wrap;margin:0}.msg-meta{letter-spacing:.04em;text-transform:uppercase;color:var(--muted);margin-bottom:4px;font-size:11px;font-weight:700;display:inline-block}.message-row.user .msg-meta{color:#fff9}.thinking-dots{border:1px solid var(--thinking-border);border-radius:var(--radius-full);background:var(--thinking-bg);align-items:center;gap:8px;padding:10px 16px;display:inline-flex}.thinking-dot{background:var(--thinking-dot-color);border-radius:50%;width:7px;height:7px;animation:1s ease-in-out infinite thinkingDot}.thinking-dot:nth-child(2){animation-delay:.14s}.thinking-dot:nth-child(3){animation-delay:.28s}.typing-cursor{opacity:.8;margin-left:4px;animation:.95s steps(2,start) infinite blink}.composer-wrapper{background:linear-gradient(180deg,var(--composer-fade-top),var(--composer-fade-mid) 22%,var(--composer-fade-bottom) 100%);flex-direction:column;padding:16px 20px 20px;display:flex}.composer-form{background:var(--surface-elevated);border:1px solid var(--surface-border);width:100%;box-shadow:var(--surface-shadow-md);transition:border-color var(--transition-fast),box-shadow var(--transition-fast);border-radius:30px;flex-direction:column;display:flex;overflow:visible}.composer-form:focus-within{border-color:var(--surface-border);box-shadow:var(--surface-shadow-md)}.composer-input-row{align-items:flex-end;gap:10px;padding:12px 14px 12px 20px;display:flex}.composer-input{color:var(--text);resize:none;background:0 0;border:none;outline:none;flex:1;max-height:150px;padding:6px 0;font-family:inherit;font-size:16px;line-height:1.55}.composer-input::placeholder{color:var(--muted)}.composer-input:disabled{opacity:.6}.composer-input:focus-visible{outline:none}.send-btn{background:linear-gradient(140deg,var(--primary-start),var(--primary-end));color:#fff;cursor:pointer;width:42px;height:42px;transition:opacity var(--transition-fast),transform var(--transition-fast);border:none;border-radius:16px;flex-shrink:0;justify-content:center;align-items:center;display:flex}.send-btn:disabled{opacity:.3;cursor:not-allowed}.send-btn:not(:disabled):hover{transform:scale(1.06)}.send-btn-cancel{background:linear-gradient(140deg,#8a1f1f,#b42318)}.chat-scroll-bottom{z-index:2;border:1px solid var(--scroll-button-border);background:var(--scroll-button-bg);width:38px;height:38px;color:var(--scroll-button-color);box-shadow:var(--shadow-md);cursor:pointer;transition:transform var(--transition-fast),opacity var(--transition-fast),border-color var(--transition-fast);border-radius:999px;justify-content:center;align-items:center;display:flex;position:absolute;bottom:120px;right:28px}.chat-scroll-bottom:hover:not(:disabled){border-color:var(--accent-2);transform:translateY(-1px)}.chat-scroll-bottom:disabled{opacity:0;pointer-events:none}.error-card{border:1px solid var(--danger-soft-line);border-radius:calc(var(--radius-lg) + 6px);background:radial-gradient(circle at top left,var(--error-card-glow),transparent 38%),linear-gradient(180deg,var(--error-card-top),var(--error-card-bottom));box-shadow:var(--surface-shadow-xl);text-align:center;padding:30px 28px;position:relative;overflow:hidden}.sr-only{clip:rect(0,0,0,0);white-space:nowrap;border:0;width:1px;height:1px;margin:-1px;padding:0;position:absolute;overflow:hidden}.skip-link{z-index:9999;border-radius:var(--radius-sm);background:var(--accent);color:#fff;padding:12px 20px;font-size:14px;font-weight:700;text-decoration:none;transition:top .15s;position:absolute;top:-100%;left:16px}.skip-link:focus{top:16px}:focus-visible{outline:2px solid var(--accent-2);outline-offset:2px}@media(max-width:640px){.auth-page-watermark:before{opacity:calc(var(--auth-watermark-opacity) + .03);background-position:50% 42%;background-size:min(1100px,182vw)}.auth-card{border-radius:var(--radius-lg);padding:24px 20px}.auth-title{font-size:22px}.auth-subtitle{font-size:13px}.auth-actions{flex-direction:column}.chat-page{padding:12px}.chat-shell{gap:12px}.auth-page{padding:16px}.chat-header{min-height:64px;padding:10px 12px}.chat-header-email,.chat-header-subtitle{display:none}.chat-header-title{font-size:15px}.chat-scroll{padding:12px}.welcome-screen{justify-content:center;gap:18px;padding:76px 8px 20px}.welcome-brand{gap:10px;margin-bottom:14px}.welcome-brand-logo{width:56px;height:56px}.welcome-brand-name{font-size:22px}.composer-wrapper{padding:8px 10px 6px;padding-bottom:calc(6px + env(safe-area-inset-bottom,0px))}.msg-content-col{max-width:100%}.msg-avatar-col{width:28px}.msg-avatar{width:28px;height:28px}.msg-bubble{padding:10px 14px;font-size:14px}.chat-scroll-bottom{bottom:96px;right:16px}.code-grid{gap:6px}}@media(max-width:380px){.auth-card{padding:18px 14px 16px}.auth-title{font-size:20px}.auth-eyebrow{padding:5px 10px;font-size:11px}.welcome-title{font-size:24px}.chat-header-left{gap:6px}.chat-header-logo{width:24px;height:24px}.code-input{font-size:1.1rem}}@property --tw-blur{syntax:"*";inherits:false}@property --tw-brightness{syntax:"*";inherits:false}@property --tw-contrast{syntax:"*";inherits:false}@property --tw-grayscale{syntax:"*";inherits:false}@property --tw-hue-rotate{syntax:"*";inherits:false}@property --tw-invert{syntax:"*";inherits:false}@property --tw-opacity{syntax:"*";inherits:false}@property --tw-saturate{syntax:"*";inherits:false}@property --tw-sepia{syntax:"*";inherits:false}@property --tw-drop-shadow{syntax:"*";inherits:false}@property --tw-drop-shadow-color{syntax:"*";inherits:false}@property --tw-drop-shadow-alpha{syntax:"<percentage>";inherits:false;initial-value:100%}@property --tw-drop-shadow-size{syntax:"*";inherits:false}