.profile-container{box-sizing:border-box;flex-direction:column;gap:24px;width:100%;max-width:1040px;margin:0 auto;padding:32px 20px;display:flex}.profile-header-card{background:var(--surface);border:2.5px solid var(--border);box-shadow:0 6px 0 var(--border);border-radius:24px;align-items:center;gap:24px;padding:24px;display:flex;position:relative}@media (max-width:640px){.profile-header-card{text-align:center;flex-direction:column;gap:16px;padding:24px 20px}}.profile-avatar-container{flex-shrink:0;position:relative}.profile-avatar-circle{width:80px;height:80px;font-family:var(--font-serif);color:#fff;background:var(--accent);border:2px solid var(--accent-border);border-radius:50%;justify-content:center;align-items:center;font-size:32px;font-weight:500;display:flex;box-shadow:0 4px 12px #4a4dd626}[data-theme=dark] .profile-avatar-circle{box-shadow:0 4px 12px 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12px}}.profile-meta-item{align-items:center;gap:6px;display:flex}.profile-stats-grid{grid-template-columns:repeat(4,1fr);gap:16px;width:100%;display:grid}@media (max-width:960px){.profile-stats-grid{grid-template-columns:repeat(2,1fr)}}@media (max-width:480px){.profile-stats-grid{grid-template-columns:1fr}}.profile-stat-card{background:var(--surface);border:2.5px solid var(--border);box-shadow:0 4px 0 var(--border);border-radius:20px;align-items:center;gap:14px;padding:16px 20px;display:flex}.profile-stat-icon-wrapper{background:var(--surface-2);border:2px solid 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p{color:var(--muted);margin:0;font-size:13px;line-height:1.4}.promo-redeem-form{gap:10px;margin-bottom:16px;display:flex}.promo-redeem-input{border:1px solid var(--border-strong);background:var(--surface-2);height:44px;color:var(--text);font-family:var(--font-mono);letter-spacing:.06em;text-transform:uppercase;box-sizing:border-box;border-radius:10px;flex:1;padding:0 14px;font-size:14px;transition:border-color .18s,box-shadow .18s,background .18s}.promo-redeem-input::placeholder{text-transform:none;letter-spacing:0;font-family:var(--font-sans);color:var(--muted-2)}.promo-redeem-input:focus{border-color:var(--accent);box-shadow:0 0 0 3px var(--accent-soft);background:var(--surface);outline:none}.promo-redeem-btn{background:var(--text);height:44px;color:var(--bg);cursor:pointer;white-space:nowrap;border:none;border-radius:10px;flex-shrink:0;align-items:center;gap:6px;padding:0 20px;font-size:13.5px;font-weight:600;transition:all 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.invoice-id{color:var(--muted);font-family:var(--font-mono);font-size:12.5px}.billing-invoice-link{border:1px solid var(--border);background:var(--surface-2);color:var(--text-2);border-radius:8px;align-items:center;gap:6px;padding:5px 10px;font-size:12.5px;font-weight:500;transition:border-color .15s,color .15s,background .15s;display:inline-flex}.billing-invoice-link:hover{border-color:var(--accent-border);color:var(--accent-text);background:var(--accent-soft)}.billing-manage-row{flex-direction:column;gap:8px;margin-top:4px;display:flex}.billing-manage-btn{border:1px solid var(--accent-border);background:var(--accent-soft);color:var(--accent-text);border-radius:8px;align-self:flex-start;align-items:center;gap:8px;padding:9px 16px;font-size:13.5px;font-weight:600;text-decoration:none;transition:border-color .15s,background .15s,color .15s;display:inline-flex}.billing-manage-btn:hover{background:var(--accent);border-color:var(--accent);color:#fff}.billing-manage-btn-ext{opacity:.7}.billing-manage-hint{color:var(--muted);max-width:52ch;margin:0;font-size:12.5px;line-height:1.5}.billing-spin{animation:.8s linear infinite billingSpin}@keyframes billingSpin{to{transform:rotate(360deg)}}.profile-avatar-container.euler-ring .profile-avatar-circle{border:2.5px solid #f59e0b;animation:3s ease-in-out infinite eulerRingPulse;box-shadow:0 0 0 3px #f59e0b40,0 0 16px #f59e0b33,0 0 32px #f59e0b14}@keyframes eulerRingPulse{0%,to{box-shadow:0 0 0 3px #f59e0b40,0 0 16px #f59e0b33,0 0 32px #f59e0b14}50%{box-shadow:0 0 0 5px #f59e0b4d,0 0 24px #f59e0b4d,0 0 48px #f59e0b1f}}[data-theme=dark] .profile-avatar-container.euler-ring .profile-avatar-circle{border-color:#fbbf24;box-shadow:0 0 0 3px #fbbf244d,0 0 20px #fbbf2440,0 0 40px #fbbf241a}.gauss-badge{letter-spacing:.04em;text-transform:uppercase;color:#fff;white-space:nowrap;background:linear-gradient(135deg,#7c3aed,#6366f1);border:1px solid #8b5cf64d;border-radius:999px;align-items:center;gap:4px;padding:3px 10px;font-size:11px;font-weight:700;line-height:1;display:inline-flex;box-shadow:0 2px 8px #7c3aed33}.gauss-badge .gauss-badge-icon{font-size:12px;line-height:1}[data-theme=dark] .gauss-badge{background:linear-gradient(135deg,#8b5cf6,#7c3aed);border-color:#8b5cf666;box-shadow:0 2px 12px #8b5cf64d}.premium-pricing-container{box-sizing:border-box;grid-template-columns:1fr 1fr;gap:20px;width:100%;margin-top:16px;display:grid}@media (max-width:640px){.premium-pricing-container{grid-template-columns:1fr}}.premium-price-card{background:var(--surface);border:2.5px solid var(--border);box-shadow:0 4px 0 var(--border);border-radius:20px;flex-direction:column;justify-content:space-between;gap:20px;padding:24px;transition:all .15s;display:flex;position:relative}.premium-price-card:hover{box-shadow:0 2px 0 var(--border);transform:translateY(2px)}.premium-price-card.featured{border:2.5px solid var(--gamified-purple);box-shadow:0 4px 0 var(--gamified-purple-dark)}.premium-price-card.featured:hover{box-shadow:0 2px 0 var(--gamified-purple-dark);transform:translateY(2px)}.premium-card-badge{color:#fff;text-transform:uppercase;letter-spacing:.05em;background:linear-gradient(135deg,#8a8df0,#6366f1);border-radius:999px;padding:4px 10px;font-size:10px;font-weight:700;position:absolute;top:-12px;right:20px;box-shadow:0 2px 8px #8a8df04d}.premium-pro-status-card{background:linear-gradient(135deg,#8a8df014,#6366f10a);border:1px solid #8a8df033;border-radius:14px;align-items:center;gap:16px;margin-top:8px;padding:20px 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var(--border-strong);background:var(--surface-2);box-sizing:border-box;flex-direction:column;flex-shrink:0;justify-content:center;align-items:center;width:380px;height:100%;padding:16px;display:flex}.casio-calc{border-radius:var(--radius-lg);-webkit-user-select:none;user-select:none;background:#1e1e24;border:4px solid #2d2d35;flex-direction:column;gap:14px;width:100%;max-width:340px;padding:16px;display:flex;box-shadow:inset 0 2px 4px #ffffff0d,0 10px 30px #0006}[data-theme=light] .casio-calc{background:#2b2b30;border-color:#3e3e46}.casio-lcd{border-radius:var(--radius-sm);color:#8a8df0;font-family:var(--font-mono);background:#09090b;border:1.5px solid 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10px;font-size:12px;font-weight:700;display:inline-flex}.badge.accent{background:var(--accent-soft);color:var(--accent-text);border-color:var(--accent-border)}.badge.success{background:var(--success-soft);color:var(--success);border-color:var(--success)}.badge.warn{background:var(--warn-soft);color:var(--warn);border-color:var(--warn)}.badge.danger{background:var(--danger-soft);color:var(--danger);border-color:var(--danger)}.account-tab{appearance:none;background:var(--surface);border:2.5px solid var(--border);color:var(--muted);cursor:pointer;box-shadow:0 3px 0 var(--border);border-radius:12px;align-items:center;gap:8px;margin-bottom:4px;padding:8px 16px;font-size:13.5px;font-weight:700;transition:all .15s;display:inline-flex}.account-tab:hover{color:var(--text);box-shadow:0 2px 0 var(--border);transform:translateY(1px)}.account-tab[data-state=active]{color:var(--gamified-purple-dark);background:var(--gamified-purple)}@supports (color:color-mix(in lab, red, red)){.account-tab[data-state=active]{background:color-mix(in srgb, var(--gamified-purple) 12%, var(--surface))}}.account-tab[data-state=active]{border-color:var(--gamified-purple);box-shadow:0 3px 0 var(--gamified-purple-dark)}.text-muted{color:var(--muted)}.text-2{color:var(--text-2)}.spin{animation:.8s linear infinite spin}@keyframes spin{to{transform:rotate(360deg)}}.katex{font-size:1.02em}.math-block{margin:12px 0}.dash-leaderboard{display:block}.mobile-only-leaderboard{display:none}@media (max-width:767px){.dash-leaderboard{display:none!important}.mobile-only-leaderboard{display:block!important}}.step-page-container{max-width:760px;margin:0 auto;padding:0 16px 40px;transition:max-width .3s}@media (min-width:1024px){.step-page-container{max-width:760px}}.wizard-outer-wrapper{flex-direction:column;gap:20px;width:100%;margin:0 auto;transition:max-width .3s;display:flex}.wizard-outer-wrapper.widescreen{max-width:760px}@media (min-width:1024px){.wizard-outer-wrapper{max-width:760px}}.wizard-slide-card{background:var(--surface);border:1px solid var(--border);box-shadow:var(--shadow-2);border-radius:var(--radius-lg);flex-direction:column;justify-content:space-between;min-height:180px;padding:20px;transition:all .3s;display:flex;position:relative;overflow:hidden}@media (min-width:1024px){.wizard-slide-card{min-height:200px;padding:32px}}.wizard-split-layout{flex-direction:column;flex:1;gap:20px;width:100%;display:flex}@media (min-width:1024px){.wizard-split-layout{flex-direction:column;gap:20px;display:flex}}.wizard-pane-left,.wizard-pane-right{flex-direction:column;gap:16px;width:100%;display:flex}.guide-card-hover:hover{transform:translateY(2px);box-shadow:0 2px 0 var(--border)!important}@property --tw-rotate-x{syntax:"*";inherits:false}@property --tw-rotate-y{syntax:"*";inherits:false}@property --tw-rotate-z{syntax:"*";inherits:false}@property --tw-skew-x{syntax:"*";inherits:false}@property 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--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}@property --tw-backdrop-blur{syntax:"*";inherits:false}@property --tw-backdrop-brightness{syntax:"*";inherits:false}@property --tw-backdrop-contrast{syntax:"*";inherits:false}@property --tw-backdrop-grayscale{syntax:"*";inherits:false}@property --tw-backdrop-hue-rotate{syntax:"*";inherits:false}@property --tw-backdrop-invert{syntax:"*";inherits:false}@property --tw-backdrop-opacity{syntax:"*";inherits:false}@property --tw-backdrop-saturate{syntax:"*";inherits:false}@property --tw-backdrop-sepia{syntax:"*";inherits:false}