:root{--color-primary:#1d1d1f;--color-secondary:#f5f5f7;--color-gold:#bc9c6c;--color-gold-muted:#bc9c6c1f;--color-surface:#fff;--color-background:#fbfbfd;--color-card:#fff;--color-border:#0000000d;--color-text:#1d1d1f;--color-text-muted:#86868b;--color-accent:#0071e3;--space-xs:4px;--space-sm:8px;--space-md:16px;--space-lg:24px;--space-xl:32px;--space-2xl:48px;--space-3xl:64px;--font-heading:"Bodoni Moda", "Georgia", serif;--font-body:-apple-system, BlinkMacSystemFont, "Inter", sans-serif;--glass-blur:blur(20px);--glass-bg:#ffffffd9;--glass-border:1px solid #0000000a;--shadow-premium:0 8px 30px #0000000a;--transition-smooth:.55s cubic-bezier(.25, 1, .5, 1)}html,body{background-color:var(--color-background);width:100%;min-height:100%;color:var(--color-text);-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale;margin:0;padding:0;overflow-x:hidden}*{box-sizing:border-box}.glass-panel{background:var(--glass-bg);-webkit-backdrop-filter:var(--glass-blur);border:var(--glass-border);box-shadow:var(--shadow-premium)}.premium-card{background:var(--color-card);border:var(--glass-border);transition:var(--transition-smooth);border-radius:14px;box-shadow:0 4px 20px -10px #0000000d}.premium-card:hover{border-color:#00000014;transform:translateY(-4px);box-shadow:0 30px 60px #0000000a}.heading-xl{font-family:var(--font-heading);letter-spacing:-.01em;font-weight:500}.text-body{font-family:var(--font-body);line-height:1.6}@keyframes fadeIn{0%{opacity:0;transform:translateY(10px)}to{opacity:1;transform:translateY(0)}}.animate-fade-in{animation:fadeIn .8s var(--transition-smooth) forwards}.form-input{box-sizing:border-box;background:var(--color-secondary);border:1px solid var(--color-border);width:100%;color:var(--color-text);font-size:14px;font-family:var(--font-body);border-radius:10px;outline:none;padding:12px 16px;transition:border-color .2s,background .2s}.form-input:focus{border-color:var(--color-gold);background:var(--color-surface)}.form-input::placeholder{color:var(--color-text-muted);opacity:.7}.form-input[type=number]::-webkit-inner-spin-button{opacity:1}select.form-input{cursor:pointer;appearance:auto}textarea.form-input{resize:vertical;line-height:1.6}.form-label{color:var(--color-text-muted);text-transform:uppercase;letter-spacing:1px;margin-bottom:6px;font-size:11px;font-weight:600;display:block}::-webkit-scrollbar{width:8px}::-webkit-scrollbar-track{background:var(--color-background)}::-webkit-scrollbar-thumb{background:var(--color-border);border-radius:4px}::-webkit-scrollbar-thumb:hover{background:var(--color-gold-muted)}.responsive-main{max-width:720px;margin:0 auto;padding:20px 16px 100px}@media (width>=768px){.responsive-main{padding:48px 24px 80px}}.cs-section{background:var(--color-card);border:1px solid var(--color-border);border-radius:14px;margin-bottom:12px;transition:opacity .3s;overflow:hidden}@media (width>=768px){.cs-section{margin-bottom:16px}}.cs-header{text-align:left;cursor:pointer;width:100%;font-family:var(--font-body);background:0 0;border:none;justify-content:space-between;align-items:center;gap:12px;padding:14px 16px;display:flex}.cs-header:disabled{cursor:not-allowed}@media (width>=768px){.cs-header{padding:20px 24px}}.cs-header-left{align-items:center;gap:12px;min-width:0;display:flex}.cs-step-badge{border-radius:10px;flex-shrink:0;justify-content:center;align-items:center;width:32px;min-width:32px;height:32px;font-size:13px;font-weight:700;display:flex}.cs-title{color:var(--color-text);font-size:15px;font-weight:600;line-height:1.3}.cs-subtitle{color:var(--color-text-muted);margin-top:2px;font-size:12px}.cs-lock-hint{color:var(--color-text-muted);align-items:center;gap:6px;padding:0 16px 14px;font-size:12px;display:flex}@media (width>=768px){.cs-lock-hint{padding:0 24px 20px}}.cs-body{border-top:1px solid var(--color-border);padding:16px}@media (width>=768px){.cs-body{padding:24px}}.lesson-section{margin-bottom:24px}@media (width>=768px){.lesson-section{margin-bottom:48px}}.lesson-panel{border-radius:16px;padding:20px}@media (width>=768px){.lesson-panel{border-radius:24px;padding:40px}}.lesson-complete-btn{width:100%;max-width:420px;padding:16px 24px;font-size:15px}@media (width>=768px){.lesson-complete-btn{width:auto;padding:20px 64px;font-size:16px}}.sticky-cta-wrap{padding:12px 16px calc(12px + env(safe-area-inset-bottom));background:linear-gradient(to top, var(--color-background) 60%, transparent);z-index:40;justify-content:center;display:flex;position:sticky;bottom:0;left:0;right:0}@media (width>=768px){.sticky-cta-wrap{background:0 0;margin-top:24px;padding:0;position:static}}