@import"https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700;800&display=swap";:root{--color-primary: #4f46e5;--color-primary-light: #6366f1;--color-primary-dark: #4338ca;--color-primary-50: #eef2ff;--color-accent: #4f46e5;--color-gold: #d97706;--color-gold-light: #f59e0b;--color-success: #059669;--color-success-light: #10b981;--color-danger: #dc2626;--color-danger-light: #ef4444;--color-orange: #ea580c;--color-orange-light: #f97316;--color-pink: #db2777;--color-pink-light: #ec4899;--color-cyan: #0891b2;--color-text: #0f172a;--color-text-muted: #64748b;--color-text-light: #475569;--color-bg: #fafafa;--color-bg-alt: #f4f4f5;--color-border: #e5e7eb;--color-border-strong: #d4d4d8;--color-white: #ffffff;--color-dark: #0a0a0a;--space-xs: .25rem;--space-sm: .5rem;--space-md: 1rem;--space-lg: 1.5rem;--space-xl: 2rem;--space-2xl: 3rem;--radius-sm: 4px;--radius-md: 8px;--radius-lg: 10px;--radius-xl: 12px;--radius-2xl: 14px;--radius-pill: 50px;--shadow-sm: 0 1px 2px rgba(0, 0, 0, .04);--shadow-md: 0 2px 4px rgba(0, 0, 0, .04);--shadow-lg: 0 4px 12px rgba(0, 0, 0, .06);--shadow-xl: 0 8px 24px rgba(0, 0, 0, .08);--shadow-primary: 0 2px 8px rgba(79, 70, 229, .18);--shadow-glow: 0 0 0 3px rgba(79, 70, 229, .12);--glass-bg: rgba(255, 255, 255, .7);--glass-border: rgba(255, 255, 255, .3);--glass-blur: blur(12px);font-family:Inter,-apple-system,BlinkMacSystemFont,Segoe 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var(--space-md);border:none;background:transparent;color:var(--color-text-muted);font-size:.9rem;font-weight:500;cursor:pointer;transition:all .15s ease;border-radius:var(--radius-sm)}.role-toggle-btn.active{background:var(--color-white);color:var(--color-primary);box-shadow:var(--shadow-sm)}.role-toggle-btn:not(.active):hover{background:#6366f114}.auth-form{display:flex;flex-direction:column;gap:1.25rem}.form-group{display:flex;flex-direction:column;gap:var(--space-sm)}.form-row{display:flex;gap:.75rem}.form-row>.form-group{min-width:0}.class-select-row{display:flex;gap:1rem;align-items:stretch}.class-select-number{flex:1;min-width:0}.class-select-letter{flex:0 0 auto}.letter-picker{display:flex;gap:.4rem;padding:3px;background:var(--color-bg-alt);border:1px solid var(--color-border);border-radius:var(--radius-md);height:42px;box-sizing:border-box}.letter-option{width:34px;flex:0 0 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var(--color-border);position:relative}.profile-user-info{display:flex;flex-direction:column;gap:.4rem}.profile-name{font-size:1.35rem;font-weight:700;margin:0;letter-spacing:-.3px;color:var(--color-text)}.profile-grade-badge{background:var(--color-primary-50);color:var(--color-primary);padding:2px .7rem;border-radius:var(--radius-pill);font-size:.78rem;font-weight:600;display:inline-block;width:fit-content;border:1px solid rgba(79,70,229,.15)}.profile-details-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(220px,1fr));gap:var(--space-md);margin-bottom:var(--space-xl)}.profile-detail{background:var(--color-white);border-radius:var(--radius-xl);padding:var(--space-lg);box-shadow:var(--shadow-sm);display:flex;flex-direction:column;gap:var(--space-xs);border:1px solid var(--color-border);transition:all 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var(--space-sm);border-radius:var(--radius-pill);font-size:.75rem;font-weight:700}.stat-badge.completed{background:#dcfce7;color:#166534}.stat-badge.in-progress{background:#fef3c7;color:#92400e}.progress-date{font-size:.75rem;color:var(--color-text-muted);text-align:right;font-style:italic}.profile-empty{text-align:center;padding:var(--space-2xl);background:var(--color-white);border-radius:var(--radius-xl);color:var(--color-text-muted);font-size:1.1rem;box-shadow:var(--shadow-sm);border:1px solid var(--color-border)}@media(max-width:768px){.profile-page{padding:var(--space-md)}.profile-header-card{flex-direction:column;text-align:center;padding:var(--space-lg)}.profile-user-info{align-items:center}.profile-name{font-size:1.4rem}.profile-avatar{width:64px;height:64px;font-size:2rem}.summary-grid{grid-template-columns:repeat(2,1fr)}.progress-grid{grid-template-columns:1fr}.progress-stats{grid-template-columns:repeat(3,1fr)}}@media(max-width:480px){.summary-grid,.profile-details-grid{grid-template-columns:1fr}}.profile-unread-badge{display:inline-block;margin-left:.6rem;padding:0 10px;min-width:24px;height:24px;line-height:24px;border-radius:12px;background:#ef4444;color:#fff;font-size:.8rem;font-weight:700;text-align:center;vertical-align:middle}.profile-mark-read{margin-left:1rem;padding:.3rem 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.play-button{cursor:pointer;font-size:.82rem;background:var(--color-white);color:var(--color-text-muted);border-color:var(--color-border)}.game-card.locked .play-button:hover{border-color:var(--color-primary);color:var(--color-primary);background:var(--color-primary-50)}@media(max-width:640px){.auth-required-inner{flex-direction:column;text-align:center}.auth-required-actions{width:100%;justify-content:center}}.user-avatar-mini{width:34px;height:34px;border-radius:50%;object-fit:cover;border:1px solid var(--color-border)}