:root{--font-thai:"Prompt", -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;--font-mono:"Inter", monospace;--color-canvas:#090d16;--color-surface:#131b2e;--color-surface-elevated:#1b263f;--color-surface-hover:#243252;--color-border:#23304e;--color-border-subtle:#ffffff14;--color-text-primary:#f8fafc;--color-text-secondary:#94a3b8;--color-text-tertiary:#64748b;--color-text-inverse:#0f172a;--color-brand:#38bdf8;--color-brand-hover:#0ea5e9;--gradient-brand:linear-gradient(135deg, #0284c7 0%, #0369a1 100%);--member1-accent:#38bdf8;--member1-surface:#38bdf81f;--member1-border:#38bdf859;--member2-accent:#fb923c;--member2-surface:#fb923c1f;--member2-border:#fb923c59;--color-success:#10b981;--color-success-surface:#10b9811f;--color-success-border:#10b9814d;--color-warning:#f59e0b;--color-warning-surface:#f59e0b26;--color-warning-border:#f59e0b59;--color-danger:#f43f5e;--color-danger-surface:#f43f5e26;--color-danger-border:#f43f5e59;--shadow-sm:0 1px 2px 0 #0000004d;--shadow-md:0 4px 6px -1px #0006, 0 2px 4px -2px #0000004d;--shadow-lg:0 10px 15px -3px #00000080, 0 4px 6px -4px #0006;--shadow-hero:0 20px 25px -5px #0009, 0 8px 10px -6px #00000080;--radius-sm:8px;--radius-md:12px;--radius-lg:16px;--radius-xl:20px;--radius-full:9999px;--min-touch-target:44px;--max-app-width:480px;--safe-bottom:env(safe-area-inset-bottom,16px);--safe-top:env(safe-area-inset-top,0px)}*{box-sizing:border-box;-webkit-tap-highlight-color:transparent;margin:0;padding:0}body{font-family:var(--font-thai);background-color:var(--color-canvas);color:var(--color-text-primary);-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale;line-height:1.5;overflow-x:hidden}button,input,select,textarea{color:inherit;font-family:inherit;font-size:1rem}button{cursor:pointer;min-height:var(--min-touch-target);min-width:var(--min-touch-target);-webkit-user-select:none;user-select:none;background:0 0;border:none;justify-content:center;align-items:center;transition:all 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(width>=481px){.modal-overlay{align-items:center;padding:20px}}.modal-content{background:var(--color-surface);border:1px solid var(--color-border);border-radius:var(--radius-xl) var(--radius-xl) 0 0;width:100%;max-width:var(--max-app-width);max-height:90vh;box-shadow:var(--shadow-hero);padding:20px;overflow-y:auto}@media (width>=481px){.modal-content{border-radius:var(--radius-xl)}}.modal-header{border-bottom:1px solid var(--color-border);justify-content:space-between;align-items:center;margin-bottom:16px;padding-bottom:12px;display:flex}.modal-title{font-size:1.15rem;font-weight:700}.form-group{margin-bottom:16px}.form-label{color:var(--color-text-secondary);margin-bottom:6px;font-size:.85rem;font-weight:500;display:block}.form-input,.form-select,.form-textarea{background:var(--color-surface-elevated);border:1px solid var(--color-border);border-radius:var(--radius-md);width:100%;color:var(--color-text-primary);min-height:var(--min-touch-target);padding:10px 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env(safe-area-inset-bottom));flex-direction:column;justify-content:center;align-items:center;display:flex}.auth-card{background:var(--color-surface);border-radius:var(--radius-lg);border:1px solid var(--color-border);width:100%;max-width:420px;box-shadow:var(--shadow-md);padding:28px 22px}.auth-brand{text-align:center;margin-bottom:22px}.auth-brand-icon{width:52px;height:52px;color:var(--color-brand);background:#38bdf81f;border:1px solid #38bdf840;border-radius:14px;justify-content:center;align-items:center;margin-bottom:12px;display:inline-flex}.auth-brand h1{color:var(--color-text-primary);letter-spacing:-.02em;margin:0 0 4px;font-size:1.35rem;font-weight:800}.auth-brand p{color:var(--color-text-secondary);margin:0;font-size:.85rem;line-height:1.4}.auth-title{color:var(--color-text-primary);margin:0 0 4px;font-size:1.05rem;font-weight:700}.auth-subtitle{color:var(--color-text-secondary);margin:0 0 16px;font-size:.82rem;line-height:1.45}.auth-input-wrap{position:relative}.auth-input-wrap .form-input{padding-right:44px}.auth-input-icon{color:var(--color-text-tertiary);cursor:pointer;background:0 0;border:none;justify-content:center;align-items:center;min-width:36px;min-height:36px;padding:8px;display:flex;position:absolute;top:50%;right:6px;transform:translateY(-50%)}.auth-link{color:var(--color-brand);cursor:pointer;background:0 0;border:none;padding:4px 0;font-family:inherit;font-size:.85rem;font-weight:600}.auth-link:disabled{opacity:.5;cursor:not-allowed}.auth-footer{border-top:1px solid var(--color-border-subtle);text-align:center;color:var(--color-text-secondary);margin-top:18px;padding-top:14px;font-size:.85rem}.auth-mode-badge{border-radius:var(--radius-full);background:var(--color-warning-surface);border:1px solid var(--color-warning-border);color:var(--color-warning);margin-top:10px;padding:3px 10px;font-size:.72rem;font-weight:600;display:inline-block}.auth-steps{gap:6px;margin-bottom:18px;display:flex}.auth-steps span{background:var(--color-border);border-radius:2px;flex:1;height:4px}.auth-steps span.active{background:var(--color-brand)}.color-grid{grid-template-columns:repeat(5,1fr);gap:8px;display:grid}.color-swatch{border-radius:var(--radius-md);cursor:pointer;border:2px solid #0000;justify-content:center;align-items:center;height:44px;transition:transform .1s;display:flex}.color-swatch:active{transform:scale(.95)}.auth-choice{text-align:left;background:var(--color-surface-elevated);border:1.5px solid var(--color-border);border-radius:var(--radius-md);cursor:pointer;width:100%;color:var(--color-text-primary);align-items:center;gap:12px;padding:14px 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