:root{--primary: #2E5EAA;--primary-light: #EBF1FA;--primary-dark: #1E417A;--accent: #FF9F1C;--accent-light: #FFF4E5;--accent-hover: #F08E07;--success: #4CAF50;--success-light: #E8F5E9;--error: #E85D4E;--error-light: #FDEDEC;--bg: #FAFAF7;--surface: #FFFFFF;--surface-hover: #F6F6F2;--text: #2B2B2B;--text-muted: #6B6B6B;--border: #E8E8E2;--locked: #D9D9D3;--shadow-sm: 0 2px 4px rgba(0, 0, 0, .04), 0 1px 2px rgba(0, 0, 0, .06);--shadow-md: 0 4px 12px rgba(0, 0, 0, .08), 0 2px 4px rgba(0, 0, 0, .04);--shadow-lg: 0 10px 24px rgba(0, 0, 0, .12), 0 4px 8px rgba(0, 0, 0, .06);--radius-sm: 8px;--radius-md: 14px;--radius-lg: 18px;--radius-xl: 24px;--radius-full: 9999px;--font-main: "Plus Jakarta Sans", system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif}*{box-sizing:border-box;margin:0;padding:0;-webkit-tap-highlight-color:transparent}body{font-family:var(--font-main);background-color:var(--bg);color:var(--text);line-height:1.5;min-height:100vh;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale}button{font-family:inherit;cursor:pointer;border:none;background:none;transition:all .2s cubic-bezier(.16,1,.3,1)}button:disabled{cursor:not-allowed;opacity:.55}input,textarea{font-family:inherit}.app-container{display:flex;flex-direction:column;min-height:100vh;background-color:var(--bg)}.main-content{flex:1;width:100%;max-width:1380px;margin:0 auto;padding:16px 16px 90px}@media (min-width: 768px){.main-content{padding:24px 32px 40px}}@media (min-width: 1200px){.main-content{padding:28px 40px 50px}}.ds-card{background:var(--surface);border-radius:var(--radius-lg);border:1px solid var(--border);box-shadow:var(--shadow-sm);transition:transform .2s cubic-bezier(.16,1,.3,1),box-shadow .2s cubic-bezier(.16,1,.3,1),border-color .2s ease}.ds-card:hover{box-shadow:var(--shadow-md)}button.ds-card:hover:not(:disabled){transform:translateY(-4px);box-shadow:0 10px 24px #2e5eaa1f;border-color:#2e5eaa59}.btn-primary{background:var(--primary);color:#fff;font-weight:700;font-size:16px;padding:14px 24px;border-radius:var(--radius-md);display:inline-flex;align-items:center;justify-content:center;gap:8px;width:100%;box-shadow:var(--shadow-sm)}.btn-primary:hover:not(:disabled){background:var(--primary-dark);transform:translateY(-1px);box-shadow:var(--shadow-md)}.btn-accent{background:var(--accent);color:#fff;font-weight:700;font-size:16px;padding:14px 24px;border-radius:var(--radius-md);display:inline-flex;align-items:center;justify-content:center;gap:8px;width:100%;box-shadow:var(--shadow-sm)}.btn-accent:hover:not(:disabled){background:var(--accent-hover);transform:translateY(-1px);box-shadow:var(--shadow-md)}.btn-outline{background:var(--surface);color:var(--primary);border:2px solid var(--primary);font-weight:600;font-size:15px;padding:10px 18px;border-radius:var(--radius-md);display:inline-flex;align-items:center;justify-content:center;gap:6px}.btn-outline:hover:not(:disabled){background:var(--primary-light)}.app-header{position:sticky;top:0;z-index:40;background:#fffffff0;-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px);border-bottom:1px solid var(--border);padding:12px 0}.app-header-inner{max-width:1380px;margin:0 auto;display:flex;align-items:center;justify-content:space-between;padding:0 16px}@media (min-width: 768px){.app-header-inner{display:grid;grid-template-columns:minmax(0,1fr) auto minmax(0,1fr);padding:0 32px}}@media (min-width: 1200px){.app-header-inner{padding:0 40px}}.header-brand{display:flex;align-items:center;gap:10px;text-decoration:none;color:var(--text);justify-self:start}.header-right{display:flex;align-items:center;justify-content:flex-end;justify-self:end}.header-title{font-size:19px;font-weight:800;color:var(--text);letter-spacing:-.3px}.xp-badge{background:var(--accent-light);color:#d97706;font-size:14px;font-weight:800;padding:6px 14px;border-radius:var(--radius-full);display:inline-flex;align-items:center;gap:6px;border:1px solid rgba(255,159,28,.3)}.bottom-nav{position:fixed;bottom:0;left:0;right:0;background:#fffffff5;-webkit-backdrop-filter:blur(12px);backdrop-filter:blur(12px);border-top:1px solid var(--border);display:flex;justify-content:space-around;padding:8px 12px calc(8px + env(safe-area-inset-bottom,0px));z-index:50;box-shadow:0 -4px 16px #0000000a}.nav-item{display:flex;flex-direction:column;align-items:center;gap:4px;color:var(--text-muted);text-decoration:none;font-size:12px;font-weight:600;padding:6px 12px;border-radius:var(--radius-md);transition:all .2s ease}.nav-item.active{color:var(--primary);background:var(--primary-light)}.nav-item-icon{font-size:20px}.desktop-nav{display:none;align-items:center;justify-content:center;justify-self:center;gap:8px}@media (min-width: 768px){.desktop-nav{display:flex}.bottom-nav{display:none}.main-content{padding-bottom:40px}}.desktop-nav-link{text-decoration:none;color:var(--text-muted);font-weight:600;font-size:14px;padding:8px 14px;border-radius:var(--radius-md);transition:all .2s ease;display:flex;align-items:center;gap:6px}.desktop-nav-link:hover{color:var(--primary);background:var(--surface-hover)}.desktop-nav-link.active{color:var(--primary);background:var(--primary-light);font-weight:700}.progress-bar-track{width:100%;background:var(--locked);border-radius:var(--radius-full);overflow:hidden}.progress-bar-fill{height:100%;background:var(--accent);border-radius:var(--radius-full);transition:width .6s cubic-bezier(.34,1.56,.64,1)}.progress-bar-fill.success{background:var(--success)}.modules-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:14px;margin-top:18px}@media (min-width: 640px){.modules-grid{grid-template-columns:repeat(3,1fr);gap:18px}}@media (min-width: 960px){.modules-grid{grid-template-columns:repeat(4,1fr);gap:20px}}@media (min-width: 1200px){.modules-grid{grid-template-columns:repeat(5,1fr);gap:22px}}.modal-overlay{position:fixed;top:0;right:0;bottom:0;left:0;background:#00000073;-webkit-backdrop-filter:blur(4px);backdrop-filter:blur(4px);display:flex;align-items:center;justify-content:center;padding:20px;z-index:100;animation:fadeIn .2s ease-out}.modal-card{background:var(--surface);border-radius:var(--radius-xl);padding:28px;width:100%;max-width:380px;text-align:center;box-shadow:var(--shadow-lg);animation:scaleUp .25s cubic-bezier(.34,1.56,.64,1)}@keyframes fadeIn{0%{opacity:0}to{opacity:1}}@keyframes scaleUp{0%{opacity:0;transform:scale(.92)}to{opacity:1;transform:scale(1)}}.screen-header{display:flex;align-items:center;gap:12px;margin-bottom:20px}.btn-back{width:42px;height:42px;border-radius:var(--radius-md);background:var(--surface);border:1px solid var(--border);display:flex;align-items:center;justify-content:center;color:var(--text);box-shadow:var(--shadow-sm)}.btn-back:hover{background:var(--surface-hover)}.screen-title{font-size:22px;font-weight:800;color:var(--text);letter-spacing:-.3px}