:root{--color-primary: hsl(350, 60%, 60%);--color-primary-light: hsl(350, 80%, 94%);--color-primary-dark: hsl(350, 60%, 45%);--color-secondary: hsl(160, 30%, 50%);--color-secondary-light: hsl(150, 20%, 96%);--color-secondary-dark: hsl(160, 40%, 35%);--color-bg: hsl(30, 20%, 98%);--color-surface: hsl(0, 0%, 100%);--color-surface-glass: rgba(255, 255, 255, .7);--color-text: hsl(240, 10%, 20%);--color-text-muted: hsl(240, 5%, 50%);--color-text-light: hsl(0, 0%, 100%);--color-success: hsl(150, 40%, 50%);--color-warning: hsl(35, 80%, 60%);--color-danger: hsl(0, 60%, 60%);--space-xs: .5rem;--space-sm: 1rem;--space-md: 1.5rem;--space-lg: 2rem;--space-xl: 3rem;--radius-sm: 8px;--radius-md: 16px;--radius-lg: 24px;--radius-full: 9999px;--shadow-sm: 0 2px 8px rgba(0, 0, 0, .04);--shadow-md: 0 8px 24px rgba(0, 0, 0, .06);--shadow-lg: 0 16px 48px rgba(0, 0, 0, .08);--font-heading: "Playfair Display", serif;--font-body: "Inter", sans-serif;--transition-fast: .15s ease;--transition-normal: .3s cubic-bezier(.4, 0, .2, 1)}*{margin:0;padding:0;box-sizing:border-box}body{font-family:var(--font-body);background:var(--color-bg);color:var(--color-text);line-height:1.6;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale}h1,h2,h3,h4,h5,h6{font-family:var(--font-heading);font-weight:600;line-height:1.2;margin-bottom:var(--space-sm);color:var(--color-text)}h1{font-size:2.5rem}h2{font-size:2rem}h3{font-size:1.5rem}button{font-family:var(--font-body);cursor:pointer;border:none;outline:none;transition:all var(--transition-normal)}.btn{padding:var(--space-sm) var(--space-lg);border-radius:var(--radius-full);font-weight:500;display:inline-flex;align-items:center;justify-content:center;gap:var(--space-xs);font-size:1rem}.btn-primary{background:var(--color-primary);color:var(--color-text-light);box-shadow:var(--shadow-sm)}.btn-primary:hover{background:var(--color-primary-dark);box-shadow:var(--shadow-md);transform:translateY(-1px)}.btn-secondary{background:var(--color-secondary-light);color:var(--color-secondary-dark)}.btn-secondary:hover{background:var(--color-secondary);color:var(--color-text-light)}.btn-glass{background:var(--color-surface-glass);-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px);border:1px solid rgba(255,255,255,.5);color:var(--color-text)}.card{background:var(--color-surface);border-radius:var(--radius-lg);padding:var(--space-lg);box-shadow:var(--shadow-sm);border:1px solid rgba(0,0,0,.02);transition:all var(--transition-normal)}.card:hover{box-shadow:var(--shadow-md);transform:translateY(-2px)}input,textarea,select{font-family:var(--font-body);padding:var(--space-sm) var(--space-md);border:1px solid transparent;background:var(--color-surface);border-radius:var(--radius-md);font-size:1rem;width:100%;box-shadow:var(--shadow-sm);transition:all var(--transition-normal)}input:focus,textarea:focus,select:focus{outline:none;box-shadow:0 0 0 2px var(--color-primary-light)}.container{max-width:1200px;margin:0 auto;padding:var(--space-md)}.text-center{text-align:center}.flex-center{display:flex;align-items:center;justify-content:center}.glass-panel{background:var(--color-surface-glass);-webkit-backdrop-filter:blur(12px);backdrop-filter:blur(12px);border:1px solid rgba(255,255,255,.4)}@media(max-width:768px){:root{--space-lg: 1.5rem;--space-xl: 2rem}h1{font-size:2rem}h2{font-size:1.5rem}}.login-container{height:100vh;width:100%;display:flex;align-items:center;justify-content:center;background:linear-gradient(135deg,var(--color-bg) 0%,#f0e6e6 100%);padding:24px}.login-card{background:#ffffffd9;-webkit-backdrop-filter:blur(12px);backdrop-filter:blur(12px);padding:48px;border-radius:24px;box-shadow:0 4px 6px #00000005,0 12px 24px #0000000d;width:100%;max-width:440px;text-align:center;border:1px solid rgba(255,255,255,.5);display:flex;flex-direction:column;align-items:center}.login-logo{font-size:3rem;margin-bottom:16px;filter:drop-shadow(0 2px 4px rgba(0,0,0,.1))}.login-title{font-size:1.75rem;font-weight:700;color:var(--color-text);margin-bottom:12px;letter-spacing:-.02em}.login-subtitle{color:var(--color-text-muted);line-height:1.6;margin-bottom:32px;font-size:1rem}.google-btn-large{width:100%;display:flex;align-items:center;justify-content:center;gap:12px;background:#fff;color:#3c4043;border:1px solid #dadce0;padding:12px 24px;border-radius:99px;font-size:1rem;font-weight:500;cursor:pointer;transition:all .2s ease;font-family:Google Sans,Roboto,Arial,sans-serif}.google-btn-large:hover{background:#f8f9fa;box-shadow:0 1px 3px #3c40434d;border-color:#d2e3fc}.google-btn-large:active{background:#e8f0fe}.guest-btn{width:100%;margin-top:12px;display:flex;align-items:center;justify-content:center;background:transparent;color:var(--color-text-muted);border:1px solid transparent;padding:12px 24px;border-radius:99px;font-size:.95rem;font-weight:500;cursor:pointer;transition:all .2s ease}.guest-btn:hover{background:#00000008;color:var(--color-text)}.login-footer{margin-top:32px;font-size:.8rem;color:#6b7280}.login-footer a{color:#4b5563;text-decoration:underline;cursor:pointer}.bottom-nav{position:fixed;bottom:0;left:0;right:0;background:var(--color-surface-glass);-webkit-backdrop-filter:blur(12px);backdrop-filter:blur(12px);border-top:1px solid rgba(0,0,0,.05);display:flex;justify-content:space-around;align-items:center;padding:12px 16px;padding-bottom:calc(12px + env(safe-area-inset-bottom));z-index:1000;box-shadow:0 -4px 16px #0000000a}.nav-item{display:flex;flex-direction:column;align-items:center;gap:4px;text-decoration:none;color:var(--color-text-muted);font-size:11px;font-weight:500;flex:1;transition:all .2s ease}.nav-item svg{transition:transform .2s cubic-bezier(.34,1.56,.64,1)}.nav-item.active{color:var(--color-primary)}.nav-item.active svg{transform:translateY(-2px)}.nav-item-logo{font-size:1.5rem;display:flex;align-items:center;justify-content:center;flex:1;-webkit-user-select:none;user-select:none;cursor:default}.nav-item,.nav-item-logo{min-width:0}.login-loading{color:var(--color-text-muted);font-size:.875rem}.login-btn{display:flex;align-items:center;gap:var(--space-xs)}.user-menu{display:flex;align-items:center;gap:var(--space-sm)}.user-avatar{width:32px;height:32px;border-radius:50%;border:2px solid var(--color-primary-light)}.user-name{font-weight:500;color:var(--color-text)}.logout-btn{display:flex;align-items:center;gap:var(--space-xs);font-size:.875rem;padding:var(--space-xs) var(--space-sm)}@media(max-width:768px){.user-name{display:none}}.sidebar{width:280px;height:100vh;background:var(--color-surface);border-right:1px solid rgba(0,0,0,.05);display:flex;flex-direction:column;padding:var(--space-lg);position:sticky;top:0}.sidebar-header{display:flex;align-items:center;gap:var(--space-sm);margin-bottom:var(--space-xl);padding:var(--space-xs)}.logo-icon{font-size:2rem}.logo-text{font-family:var(--font-heading);font-size:1.5rem;font-weight:700;color:var(--color-primary)}.sidebar-nav{display:flex;flex-direction:column;gap:var(--space-xs);flex:1}.sidebar-item{display:flex;align-items:center;gap:var(--space-md);padding:var(--space-sm) var(--space-md);border-radius:var(--radius-full);text-decoration:none;color:var(--color-text-muted);font-weight:500;transition:all var(--transition-fast)}.sidebar-item:hover{background:var(--color-surface-hover);color:var(--color-primary)}.sidebar-item.active{background:var(--color-primary-light);color:var(--color-primary-dark)}.sidebar-footer{padding-top:var(--space-md);border-top:1px solid rgba(0,0,0,.05)}.layout{display:flex;min-height:100vh;background:var(--color-bg)}.main-content{flex:1;width:100%;padding-bottom:80px;overflow-x:hidden}@media(min-width:768px){.main-content{padding-bottom:0;max-width:calc(100vw - 280px)}}.upgrade-prompt-overlay{position:fixed;inset:0;background:#00000080;display:flex;align-items:center;justify-content:center;z-index:1000;padding:var(--space-md)}.upgrade-prompt-modal{position:relative;background:var(--color-surface);padding:var(--space-xl);border-radius:var(--radius-lg);max-width:500px;width:100%;text-align:center;box-shadow:0 20px 60px #0000004d}.upgrade-prompt-close{position:absolute;top:var(--space-md);right:var(--space-md);background:transparent;border:none;cursor:pointer;padding:.5rem;color:var(--color-text-muted);transition:color var(--transition-fast)}.upgrade-prompt-close:hover{color:var(--color-text)}.upgrade-prompt-icon{display:flex;align-items:center;justify-content:center;width:80px;height:80px;margin:0 auto var(--space-md);background:linear-gradient(135deg,var(--color-primary),var(--color-primary-dark));border-radius:var(--radius-full);color:#fff;box-shadow:var(--shadow-md)}.upgrade-prompt-modal h3{margin-bottom:var(--space-sm);color:var(--color-primary)}.upgrade-prompt-modal p{margin-bottom:var(--space-md);color:var(--color-text-muted)}.upgrade-prompt-actions{display:flex;gap:var(--space-sm);margin-top:var(--space-lg)}.upgrade-prompt-actions .btn{flex:1}.chat-container{display:flex;flex-direction:column;height:75vh;border:none;background:transparent;box-shadow:none;padding:0;margin-top:var(--space-md)}.chat-messages{flex:1;overflow-y:auto;display:flex;flex-direction:column;gap:var(--space-md);padding:var(--space-sm);scroll-behavior:smooth;scrollbar-width:none;-ms-overflow-style:none}.chat-messages::-webkit-scrollbar{display:none}.message{display:flex;width:100%;animation:fadeSlideUp .4s cubic-bezier(.2,.8,.2,1)}@keyframes fadeSlideUp{0%{opacity:0;transform:translateY(20px)}to{opacity:1;transform:translateY(0)}}.message.user{justify-content:flex-end}.message.assistant{justify-content:flex-start}.message-content{max-width:80%;padding:16px 20px;border-radius:20px;position:relative;box-shadow:0 2px 8px #0000000d;font-size:1rem;line-height:1.5}.message.user .message-content{background:var(--color-primary);color:#fff;border-bottom-right-radius:4px}.message.assistant .message-content{background:#fff;color:var(--color-text);border-bottom-left-radius:4px}.message-content.typing{background:#fff;padding:16px;border-radius:20px 20px 20px 4px;display:flex;gap:6px;align-items:center;width:fit-content}.message-content.typing span{width:8px;height:8px;background:var(--color-primary-light);border-radius:50%;animation:bounce 1.4s infinite ease-in-out both}.message-content.typing span:nth-child(1){animation-delay:-.32s}.message-content.typing span:nth-child(2){animation-delay:-.16s}@keyframes bounce{0%,80%,to{transform:scale(0)}40%{transform:scale(1)}}.chat-input-form{display:flex;align-items:center;gap:12px;margin-top:auto;background:#fff;padding:8px 12px;border-radius:50px;box-shadow:0 8px 30px #00000014;border:1px solid rgba(0,0,0,.02);position:sticky;bottom:0}.chat-input{flex:1;border:none;background:transparent;padding:12px;font-size:1rem;box-shadow:none}.chat-input::placeholder{color:var(--color-text-muted)}.chat-send-btn{width:44px;height:44px;border-radius:50%;background:var(--color-primary);color:#fff;padding:0;display:flex;align-items:center;justify-content:center;transition:transform .2s cubic-bezier(.34,1.56,.64,1);box-shadow:var(--shadow-sm)}.chat-send-btn:hover{background:var(--color-primary-dark);transform:scale(1.05)}.chat-send-btn:disabled{opacity:.5;transform:none;background:var(--color-text-muted)}.login-prompt-overlay{position:fixed;inset:0;background:#00000080;display:flex;align-items:center;justify-content:center;z-index:1000;animation:fadeIn .2s ease-out}@keyframes fadeIn{0%{opacity:0}to{opacity:1}}.login-prompt-modal{background:#fff;padding:var(--space-xl);border-radius:var(--radius-lg);max-width:400px;width:90%;text-align:center;box-shadow:0 20px 60px #0003;animation:slideUp .3s ease-out}@keyframes slideUp{0%{opacity:0;transform:translateY(20px)}to{opacity:1;transform:translateY(0)}}.login-prompt-modal h3{margin-bottom:var(--space-sm);color:var(--color-text)}.login-prompt-modal p{color:var(--color-text-muted);font-size:.95rem;line-height:1.5}.pricing-page{padding:var(--space-xl) var(--space-md)}.pricing-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(280px,1fr));gap:var(--space-lg);max-width:900px;margin:0 auto}.pricing-grid-3{max-width:1100px}@media(min-width:900px){.pricing-grid-3{grid-template-columns:repeat(3,1fr)}}.pricing-card{position:relative;padding:var(--space-lg);border:2px solid var(--color-border);border-radius:var(--radius-lg);background:var(--color-surface);transition:all var(--transition-fast)}.pricing-card:hover{transform:translateY(-4px);box-shadow:0 8px 24px #0000001a}.pricing-card-featured{border-color:var(--color-primary);border-width:3px}.pricing-card-pro{border-color:#9333ea;border-width:3px;background:linear-gradient(135deg,#9333ea0d,#a855f70d)}.pricing-card-current{box-shadow:0 0 0 2px var(--color-primary),0 4px 12px #0000001a}.featured-badge{position:absolute;top:-12px;left:50%;transform:translate(-50%);background:var(--color-primary);color:#fff;padding:.25rem 1rem;border-radius:var(--radius-full);font-size:.875rem;font-weight:600}.pro-badge{position:absolute;top:-12px;left:50%;transform:translate(-50%);background:linear-gradient(135deg,#9333ea,#a855f7);color:#fff;padding:.25rem 1rem;border-radius:var(--radius-full);font-size:.875rem;font-weight:600}.pricing-header{text-align:center;padding-bottom:var(--space-md);border-bottom:1px solid var(--color-border);margin-bottom:var(--space-md)}.tier-icon{display:flex;justify-content:center;margin-bottom:var(--space-sm)}.tier-icon svg{color:var(--color-primary)}.pricing-card-pro .tier-icon svg{color:#9333ea}.pricing-price{margin-top:var(--space-sm)}.price{font-size:2.5rem;font-weight:700;color:var(--color-primary)}.pricing-card-pro .price{color:#9333ea}.period{color:var(--color-text-muted);font-size:1rem}.pricing-features{list-style:none;padding:0;margin:0 0 var(--space-lg) 0}.pricing-features li{display:flex;align-items:center;gap:var(--space-sm);padding:var(--space-sm) 0;color:var(--color-text)}.pricing-features li svg{color:var(--color-primary);flex-shrink:0}.pricing-card-pro .pricing-features li svg{color:#9333ea}.btn-pro{background:linear-gradient(135deg,#9333ea,#a855f7);color:#fff;border:none;padding:var(--space-sm) var(--space-md);border-radius:var(--radius-md);font-weight:600;cursor:pointer;transition:all var(--transition-fast)}.btn-pro:hover{background:linear-gradient(135deg,#7e22ce,#9333ea);transform:translateY(-1px);box-shadow:0 4px 12px #9333ea66}.btn-pro:disabled{opacity:.6;cursor:not-allowed}.faq-item{margin-bottom:var(--space-md);padding:var(--space-md);border:1px solid var(--color-border);border-radius:var(--radius-md);cursor:pointer}.faq-item summary{font-weight:600;-webkit-user-select:none;user-select:none}.faq-item p{margin-top:var(--space-sm);color:var(--color-text-muted)}.subscription-status{max-width:400px}.subscription-badge-container{margin-top:var(--space-md);display:flex;justify-content:center}.subscription-badge{display:inline-block;padding:.5rem 1.5rem;border-radius:var(--radius-full);font-weight:600;font-size:1.125rem;background:linear-gradient(135deg,#c2f0d1,#d1f0c2);color:#1f7a3d}.subscription-badge.premium{background:linear-gradient(135deg,#e052b1,#b152e0);color:#fff}.subscription-badge.pro{background:linear-gradient(135deg,#9333ea,#a855f7);color:#fff}.icon-primary{color:var(--color-primary)}