:root{--bg-primary: #0f172a;--bg-secondary: #1e293b;--bg-tertiary: #334155;--bg-card: #1e293b;--bg-card-hover: #273548;--bg-input: #1e293b;--accent-primary: #0ea5e9;--accent-secondary: #22d3ee;--accent-tertiary: #06b6d4;--accent-gradient: linear-gradient(135deg, #0ea5e9 0%, #22d3ee 100%);--text-primary: #f8fafc;--text-secondary: #94a3b8;--text-muted: #64748b;--text-inverse: #0f172a;--border-primary: #334155;--border-secondary: #475569;--border-accent: rgba(14, 165, 233, .3);--glow-cyan: 0 0 20px rgba(14, 165, 233, .3);--glow-cyan-strong: 0 0 30px rgba(14, 165, 233, .5);--glow-cyan-subtle: 0 0 10px rgba(14, 165, 233, .2);--glow-cyan-text: 0 0 40px rgba(14, 165, 233, .4), 0 0 80px rgba(14, 165, 233, .2);--glow-cyan-button: 0 4px 20px rgba(14, 165, 233, .4);--success: #10b981;--success-bg: rgba(16, 185, 129, .1);--warning: #f59e0b;--warning-bg: rgba(245, 158, 11, .1);--danger: #ef4444;--danger-bg: rgba(239, 68, 68, .1);--shadow-sm: 0 1px 2px rgba(0, 0, 0, .3);--shadow-md: 0 4px 6px rgba(0, 0, 0, .3);--shadow-lg: 0 10px 15px rgba(0, 0, 0, .3);--shadow-card: 0 4px 20px rgba(0, 0, 0, .4);--font-sans: -apple-system, BlinkMacSystemFont, "Segoe UI", "Roboto", "Oxygen", "Ubuntu", "Cantarell", "Fira Sans", "Droid Sans", "Helvetica Neue", sans-serif;--font-mono: "SF Mono", "Fira Code", "Consolas", monospace;--radius-sm: 6px;--radius-md: 10px;--radius-lg: 16px;--radius-xl: 24px;--transition-fast: .15s ease;--transition-normal: .3s ease;--transition-slow: .5s ease}*{margin:0;padding:0;box-sizing:border-box}html{scroll-behavior:smooth}body{font-family:var(--font-sans);-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale;background-color:var(--bg-primary);color:var(--text-primary);line-height:1.6}code{font-family:var(--font-mono)}a{color:var(--accent-primary);text-decoration:none;transition:color var(--transition-fast)}a:hover{color:var(--accent-secondary)}::-webkit-scrollbar{width:8px;height:8px}::-webkit-scrollbar-track{background:var(--bg-secondary)}::-webkit-scrollbar-thumb{background:var(--bg-tertiary);border-radius:4px}::-webkit-scrollbar-thumb:hover{background:var(--border-secondary)}::selection{background:#0ea5e94d;color:var(--text-primary)}.app{min-height:100vh;display:flex;flex-direction:column}.main-content{flex:1;max-width:1200px;width:100%;margin:0 auto;padding:2rem 1rem}.page-container{width:100%}.header{background:var(--bg-secondary);color:var(--text-primary);padding:1.5rem 2rem;box-shadow:var(--shadow-md);border-bottom:1px solid var(--border-primary)}.header-container{max-width:1200px;margin:0 auto;display:flex;justify-content:space-between;align-items:center;flex-wrap:wrap;gap:1rem}.header-left{display:flex;flex-direction:column;align-items:flex-start}.header-title{font-size:2rem;font-weight:700;margin:0;display:flex;align-items:center;gap:.5rem}.header-icon{font-size:2rem}.header-subtitle{margin:.25rem 0 0;font-size:.9rem;opacity:.9}.header-right{display:flex;align-items:center;gap:2rem}.header-nav{display:flex;gap:1.5rem}.nav-link{color:var(--text-primary);text-decoration:none;font-weight:500;padding:.5rem 1rem;border-radius:var(--radius-sm);transition:all var(--transition-fast)}.nav-link:hover{background-color:var(--bg-tertiary);color:var(--accent-primary)}.user-section{display:flex;align-items:center;gap:1rem;padding-left:1.5rem;border-left:1px solid var(--border-primary)}.user-info{display:flex;align-items:center;gap:.75rem}.user-avatar{width:36px;height:36px;border-radius:50%;border:2px solid var(--accent-primary);object-fit:cover}.user-name{color:var(--text-primary);font-weight:500;font-size:.95rem}.logout-btn{background-color:transparent;color:var(--text-primary);border:1px solid var(--border-secondary);padding:.5rem 1.25rem;border-radius:var(--radius-sm);font-size:.9rem;font-weight:500;cursor:pointer;transition:all var(--transition-fast)}.logout-btn:hover{background-color:var(--bg-tertiary);border-color:var(--accent-primary);color:var(--accent-primary)}.nav-link.manage-btn{background:#0ea5e91a;border:1px solid var(--border-accent);border-radius:var(--radius-sm);cursor:pointer;font-size:.9rem;transition:all var(--transition-fast)}.nav-link.manage-btn:hover{background:#0ea5e933;border-color:var(--accent-primary);box-shadow:var(--glow-cyan-subtle)}.nav-link.manage-btn:disabled{opacity:.6;cursor:not-allowed}.tier-badge-header{padding:.35rem .75rem;border-radius:50px;font-size:.75rem;font-weight:600;text-transform:uppercase;letter-spacing:.5px}.tier-badge-header.free{background:var(--bg-tertiary);color:var(--text-secondary)}.tier-badge-header.pro{background:linear-gradient(135deg,#0ea5e933,#22d3ee33);color:var(--accent-secondary);border:1px solid var(--border-accent);box-shadow:var(--glow-cyan-subtle)}.tier-badge-header.enterprise{background:linear-gradient(135deg,#10b98133,#05966933);color:var(--success);border:1px solid rgba(16,185,129,.4)}.footer{background-color:var(--bg-secondary);color:var(--text-muted);text-align:center;padding:1.5rem;margin-top:auto;border-top:1px solid var(--border-primary)}.footer p{margin:0;font-size:.9rem}.loader-container{display:flex;flex-direction:column;align-items:center;justify-content:center;padding:3rem 1rem;gap:1rem}.spinner{width:50px;height:50px;border:4px solid var(--bg-tertiary);border-top-color:var(--accent-primary);border-radius:50%;animation:spin 1s linear infinite}@keyframes spin{to{transform:rotate(360deg)}}.loader-message{color:var(--text-secondary);font-size:1rem;font-weight:500}.loader-elapsed-time{color:var(--accent-primary);font-size:.9rem;font-weight:600;margin-top:-.5rem}.loader-warning{color:var(--warning);font-size:.85rem;text-align:center;max-width:400px;line-height:1.5;padding:.75rem 1rem;background-color:var(--warning-bg);border-radius:var(--radius-md);border-left:4px solid var(--warning);margin-top:.5rem}.tweet-generator{max-width:800px;margin:0 auto}.input-mode-toggle{display:flex;justify-content:center;gap:1rem;margin-bottom:2rem}.mode-btn{padding:.8rem 1.5rem;background:var(--bg-secondary);border:2px solid var(--border-primary);border-radius:25px;font-weight:600;color:var(--text-secondary);cursor:pointer;transition:all var(--transition-fast);font-size:1rem;display:flex;align-items:center;gap:.5rem}.mode-btn:hover{border-color:var(--accent-primary);color:var(--accent-primary)}.mode-btn.active{background:var(--accent-gradient);color:var(--text-inverse);border-color:transparent;box-shadow:var(--glow-cyan)}.topic-input{width:100%;padding:1rem;font-size:1rem;border:2px solid var(--border-primary);border-radius:var(--radius-md);transition:all var(--transition-fast);resize:vertical;min-height:150px;font-family:inherit;background-color:var(--bg-input);color:var(--text-primary)}.topic-input:focus{outline:none;border-color:var(--accent-primary);box-shadow:var(--glow-cyan-subtle)}.generator-form{background:var(--bg-card);padding:2rem;border-radius:var(--radius-lg);box-shadow:var(--shadow-card);margin-bottom:2rem;border:1px solid var(--border-primary)}.generator-form h2{margin:0 0 .5rem;color:var(--text-primary);font-size:1.8rem}.form-description{color:var(--text-secondary);margin-bottom:1.5rem}.form-group{margin-bottom:1.5rem}.form-group label{display:block;margin-bottom:.5rem;font-weight:600;color:var(--text-primary)}.url-input{width:100%;padding:.75rem 1rem;font-size:1rem;border:2px solid var(--border-primary);border-radius:var(--radius-md);transition:all var(--transition-fast);background-color:var(--bg-input);color:var(--text-primary)}.url-input:focus{outline:none;border-color:var(--accent-primary);box-shadow:var(--glow-cyan-subtle)}.url-input:disabled{background-color:var(--bg-tertiary);cursor:not-allowed;color:var(--text-muted)}.tone-selector{display:flex;gap:1rem;flex-wrap:wrap}.tone-option{flex:1;min-width:150px;padding:.75rem 1rem;border:2px solid var(--border-primary);border-radius:var(--radius-md);cursor:pointer;transition:all var(--transition-fast);display:flex;align-items:center;gap:.5rem;background-color:var(--bg-secondary);color:var(--text-primary)}.tone-option:has(input:checked){border-color:var(--accent-primary);background-color:#0ea5e91a;box-shadow:var(--glow-cyan-subtle)}.tone-option input[type=radio]{cursor:pointer;accent-color:var(--accent-primary)}.tone-label{cursor:pointer;font-weight:500}.error-message{background-color:var(--danger-bg);color:var(--danger);padding:.75rem 1rem;border-radius:var(--radius-md);margin-bottom:1rem;border-left:4px solid var(--danger)}.generate-btn{width:100%;padding:1rem 2rem;font-size:1.1rem;font-weight:700;color:var(--text-inverse);background:var(--accent-gradient);border:none;border-radius:var(--radius-md);cursor:pointer;transition:all var(--transition-fast)}.generate-btn:hover:not(:disabled){transform:translateY(-2px);box-shadow:var(--glow-cyan-strong)}.generate-btn:disabled{opacity:.6;cursor:not-allowed}.summary-result{background:var(--bg-card);padding:2rem;border-radius:var(--radius-lg);box-shadow:var(--shadow-card);margin-bottom:2rem;border:1px solid var(--border-primary)}.summary-header{margin-bottom:1.5rem}.summary-header h3{margin:0;color:var(--text-primary);font-size:1.5rem}.summary-content{background:var(--bg-secondary);padding:1.5rem;border-radius:var(--radius-md);border-left:4px solid var(--accent-primary);margin-bottom:2rem}.summary-content p{margin:0;line-height:1.6;color:var(--text-primary);font-size:1rem}.tweet-generation-section{border-top:2px solid var(--border-primary);padding-top:2rem}.tweet-generation-section h3{margin:0 0 .5rem;color:var(--text-primary)}.section-description{color:var(--text-secondary);margin-bottom:1.5rem}.tweets-result{background:var(--bg-card);padding:2rem;border-radius:var(--radius-lg);box-shadow:var(--shadow-card);border:1px solid var(--border-primary)}.result-header{display:flex;justify-content:space-between;align-items:center;margin-bottom:1.5rem;flex-wrap:wrap;gap:1rem}.result-header h3{margin:0;color:var(--text-primary)}.copy-all-btn{padding:.5rem 1rem;background-color:var(--success);color:var(--text-inverse);border:none;border-radius:var(--radius-sm);cursor:pointer;font-weight:500;transition:all var(--transition-fast)}.copy-all-btn:hover{background-color:#059669;box-shadow:0 0 15px #10b9814d}.tweets-container{display:flex;flex-direction:column;gap:1rem}.streaming-toggle{margin-bottom:1.5rem}.toggle-option{display:flex;align-items:center;gap:.5rem;cursor:pointer;padding:.5rem;border-radius:var(--radius-sm);transition:background-color var(--transition-fast)}.toggle-option:hover{background-color:var(--bg-tertiary)}.toggle-option input[type=checkbox]{width:18px;height:18px;cursor:pointer;accent-color:var(--accent-primary)}.toggle-label{font-weight:500;color:var(--text-primary)}.streaming-preview{background:var(--bg-secondary);padding:1.5rem;border-radius:var(--radius-lg);box-shadow:var(--shadow-card);margin-bottom:2rem;border:1px solid var(--border-accent)}.streaming-header{display:flex;justify-content:space-between;align-items:center;margin-bottom:1rem}.streaming-header h3{margin:0;color:var(--accent-primary);display:flex;align-items:center;gap:.5rem;font-size:1.1rem}.cancel-btn{background:var(--danger-bg);color:var(--danger);border:1px solid var(--danger);padding:.4rem .8rem;border-radius:var(--radius-sm);cursor:pointer;font-weight:500;transition:all var(--transition-fast)}.cancel-btn:hover{background:var(--danger);color:#fff}.streaming-content{background:var(--bg-primary);border-radius:var(--radius-md);padding:1rem;max-height:400px;overflow-y:auto;border:1px solid var(--border-primary)}.streaming-content pre{margin:0;color:var(--text-primary);font-family:var(--font-mono);font-size:.9rem;line-height:1.6;white-space:pre-wrap;word-wrap:break-word}.streaming-content::-webkit-scrollbar{width:8px}.streaming-content::-webkit-scrollbar-track{background:var(--bg-secondary);border-radius:4px}.streaming-content::-webkit-scrollbar-thumb{background:var(--bg-tertiary);border-radius:4px}.streaming-content::-webkit-scrollbar-thumb:hover{background:var(--border-secondary)}.streaming-content pre:after{content:"▋";color:var(--accent-primary);animation:blink 1s infinite}@keyframes blink{0%,50%{opacity:1}51%,to{opacity:0}}.tweet-card{border:2px solid var(--border-primary);border-radius:var(--radius-md);padding:1rem;background:var(--bg-secondary);transition:all var(--transition-fast)}.tweet-card:hover{transform:translateY(-2px);box-shadow:var(--glow-cyan-subtle);border-color:var(--border-accent)}.tweet-header{display:flex;justify-content:space-between;align-items:center;margin-bottom:.75rem}.tweet-number{font-weight:700;color:var(--accent-primary);font-size:.9rem}.tweet-actions{display:flex;align-items:center;gap:1rem}.char-count{font-size:.85rem;color:var(--success);font-weight:500}.char-count.over-limit{color:var(--danger);font-weight:700}.copy-btn{padding:.4rem .8rem;background-color:var(--accent-primary);color:var(--text-inverse);border:none;border-radius:var(--radius-sm);cursor:pointer;font-size:.85rem;transition:all var(--transition-fast)}.copy-btn:hover{background-color:var(--accent-tertiary);box-shadow:var(--glow-cyan-subtle)}.copy-btn.copied{background-color:var(--success)}.tweet-content{background:var(--bg-primary);padding:1rem;border-radius:var(--radius-md);line-height:1.5;white-space:pre-wrap;word-wrap:break-word;border:1px solid var(--border-primary)}.tweet-content p{margin:0;color:var(--text-primary)}.tweet-warning{margin-top:.5rem;padding:.5rem;background-color:var(--danger-bg);color:var(--danger);border-radius:var(--radius-sm);font-size:.85rem;border-left:3px solid var(--danger)}.history-list{max-width:1000px;margin:0 auto}.history-header{margin-bottom:2rem}.history-header h2{margin:0 0 .5rem;color:var(--text-primary)}.history-header p{margin:0;color:var(--text-secondary)}.content-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(350px,1fr));gap:1.5rem;margin-bottom:2rem}.tweet-thread-card{background:var(--bg-card);border-radius:var(--radius-lg);padding:1.5rem;box-shadow:var(--shadow-card);transition:all var(--transition-fast);display:flex;flex-direction:column;border:1px solid var(--border-primary)}.tweet-thread-card:hover{transform:translateY(-4px);box-shadow:var(--glow-cyan);border-color:var(--border-accent)}.thread-card-header{margin-bottom:1rem;padding-bottom:1rem;border-bottom:2px solid var(--border-primary)}.thread-info{display:flex;align-items:flex-start;gap:.75rem}.thread-icon{font-size:1.5rem}.thread-info h3{margin:0 0 .25rem;font-size:1.1rem;color:var(--text-primary)}.thread-meta{font-size:.85rem;color:var(--text-secondary)}.thread-card-body{flex:1;margin-bottom:1rem}.thread-preview{padding:.75rem;background:var(--bg-secondary);border-radius:var(--radius-md);border-left:3px solid var(--accent-primary)}.first-tweet{margin:0 0 .5rem;color:var(--text-primary);line-height:1.4;font-size:.95rem}.more-tweets{margin:0;color:var(--accent-primary);font-size:.85rem;font-weight:500}.thread-full{max-height:400px;overflow-y:auto;padding-right:.5rem}.thread-card-actions{display:flex;gap:.5rem;flex-wrap:wrap}.thread-card-actions .action-btn{flex:1;min-width:90px}.content-card{background:var(--bg-card);border-radius:var(--radius-lg);padding:1.5rem;box-shadow:var(--shadow-card);transition:all var(--transition-fast);display:flex;flex-direction:column;border:1px solid var(--border-primary)}.content-card:hover{transform:translateY(-4px);box-shadow:var(--glow-cyan);border-color:var(--border-accent)}.content-card-header{display:flex;justify-content:space-between;align-items:center;margin-bottom:1rem;font-size:.85rem}.content-domain{color:var(--accent-primary);font-weight:500}.content-date{color:var(--text-muted)}.content-card-body{flex:1;margin-bottom:1rem}.content-url{font-size:1rem;margin:0 0 .75rem;color:var(--text-primary);word-break:break-all}.content-summary{color:var(--text-secondary);font-size:.9rem;line-height:1.4;margin:0}.content-card-actions{display:flex;gap:.5rem;justify-content:space-between;flex-wrap:wrap}.action-btn{flex:1;min-width:100px;padding:.6rem 1rem;border:none;border-radius:var(--radius-sm);cursor:pointer;font-weight:500;font-size:.9rem;transition:all var(--transition-fast)}.action-btn:hover{transform:scale(1.05)}.action-btn.primary{background:var(--accent-gradient);color:var(--text-inverse)}.action-btn.primary:hover{box-shadow:var(--glow-cyan)}.action-btn.secondary{background-color:var(--bg-tertiary);color:var(--text-primary)}.action-btn.danger{background-color:var(--danger);color:#fff}.tweet-thread-compact{margin-top:1rem;padding-top:1rem;border-top:2px solid var(--border-primary)}.thread-header{margin-bottom:.75rem;color:var(--accent-primary);font-size:.95rem}.compact-tweet{padding:.5rem 0;border-bottom:1px solid var(--border-primary);display:flex;gap:.5rem;font-size:.9rem;line-height:1.4}.compact-tweet:last-child{border-bottom:none}.tweet-num{font-weight:700;color:var(--accent-primary);min-width:25px}.tweet-text{color:var(--text-primary);flex:1}.pagination{display:flex;justify-content:center;align-items:center;gap:1.5rem;margin-top:2rem;padding:1rem}.pagination-btn{padding:.6rem 1.2rem;background:var(--accent-gradient);color:var(--text-inverse);border:none;border-radius:var(--radius-sm);cursor:pointer;font-weight:500;transition:all var(--transition-fast)}.pagination-btn:hover:not(:disabled){box-shadow:var(--glow-cyan);transform:translateY(-2px)}.pagination-btn:disabled{background:var(--bg-tertiary);color:var(--text-muted);cursor:not-allowed}.pagination-info{font-weight:600;color:var(--text-primary)}.empty-state{text-align:center;padding:4rem 2rem;background:var(--bg-card);border-radius:var(--radius-lg);box-shadow:var(--shadow-card);border:1px solid var(--border-primary)}.empty-state h2{margin:0 0 1rem;color:var(--text-primary)}.empty-state p{color:var(--text-secondary);margin-bottom:2rem}.primary-btn{padding:1rem 2rem;background:var(--accent-gradient);color:var(--text-inverse);border:none;border-radius:var(--radius-md);cursor:pointer;font-weight:700;font-size:1rem;transition:all var(--transition-fast)}.primary-btn:hover{transform:translateY(-2px);box-shadow:var(--glow-cyan)}.not-found{text-align:center;padding:4rem 2rem}.not-found-title{font-size:6rem;margin:0;color:var(--accent-primary);text-shadow:var(--glow-cyan)}.not-found h2{margin:1rem 0;color:var(--text-primary)}.not-found p{color:var(--text-secondary);font-size:1.2rem}.home-link{display:inline-block;padding:1rem 2rem;background:var(--accent-gradient);color:var(--text-inverse);text-decoration:none;border-radius:var(--radius-md);font-weight:700;transition:all var(--transition-fast)}.home-link:hover{box-shadow:var(--glow-cyan);transform:translateY(-2px)}.login-page{min-height:100vh;display:flex;align-items:center;justify-content:center;background:var(--bg-primary);padding:1rem}.login-container{width:100%;max-width:450px}.login-card{background:var(--bg-card);border-radius:var(--radius-xl);padding:3rem 2.5rem;box-shadow:var(--shadow-lg);border:1px solid var(--border-primary)}.login-header{text-align:center;margin-bottom:2.5rem}.twitter-icon{width:60px;height:60px;margin:0 auto 1.5rem;fill:var(--accent-primary);filter:drop-shadow(0 0 10px rgba(14,165,233,.5))}.login-header h1{font-size:2rem;font-weight:700;color:var(--text-primary);margin:0 0 .5rem}.login-header p{color:var(--text-secondary);font-size:1rem;margin:0}.google-login-btn{width:100%;padding:1rem;background:var(--bg-secondary);border:2px solid var(--border-primary);border-radius:var(--radius-md);font-size:1rem;font-weight:500;color:var(--text-primary);cursor:pointer;display:flex;align-items:center;justify-content:center;gap:12px;transition:all var(--transition-fast);margin-bottom:1.5rem}.google-login-btn:hover{background:var(--bg-tertiary);border-color:var(--accent-primary);box-shadow:var(--glow-cyan-subtle)}.google-icon{width:24px;height:24px}.login-footer{text-align:center;padding-top:1.5rem;border-top:1px solid var(--border-primary)}.login-footer p{font-size:.875rem;color:var(--text-muted);margin:0}.auth-callback-page{min-height:100vh;display:flex;align-items:center;justify-content:center;background:var(--bg-primary)}.auth-callback-container{background:var(--bg-card);border-radius:var(--radius-xl);padding:3rem 2.5rem;text-align:center;max-width:500px;box-shadow:var(--shadow-lg);border:1px solid var(--border-primary)}.auth-loading,.auth-error{display:flex;flex-direction:column;align-items:center;gap:1rem}.auth-loading h2,.auth-error h2{margin:0;color:var(--text-primary);font-size:1.5rem}.auth-loading p,.auth-error p{margin:0;color:var(--text-secondary)}.spinner{width:50px;height:50px;border:4px solid var(--bg-tertiary);border-top:4px solid var(--accent-primary);border-radius:50%;animation:spin 1s linear infinite}@keyframes spin{0%{transform:rotate(0)}to{transform:rotate(360deg)}}.error-icon{width:60px;height:60px;color:var(--danger)}.redirect-message{font-size:.875rem;font-style:italic}.loading-container{display:flex;flex-direction:column;align-items:center;justify-content:center;min-height:50vh;gap:1rem}.landing-page{min-height:100vh;background:var(--bg-primary);overflow-x:hidden}.landing-header{position:sticky;top:0;background:#0f172acc;-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px);padding:1rem 2rem;z-index:100;border-bottom:1px solid var(--border-primary)}.landing-header-content{max-width:1400px;margin:0 auto;display:flex;justify-content:space-between;align-items:center}.landing-logo{display:flex;align-items:center;gap:.5rem;color:var(--text-primary);font-size:1.5rem;font-weight:700}.landing-login-btn{display:flex;align-items:center;gap:.75rem;background:var(--accent-gradient);color:var(--text-inverse);padding:.75rem 1.5rem;border-radius:var(--radius-md);border:none;font-size:1rem;font-weight:500;cursor:pointer;transition:all var(--transition-fast);box-shadow:var(--glow-cyan)}.landing-login-btn:hover{transform:translateY(-2px);box-shadow:var(--glow-cyan-strong)}.landing-login-btn .google-icon{width:20px;height:20px}.hero-section{position:relative;min-height:90vh;display:grid;grid-template-columns:1fr 1fr;gap:4rem;padding:4rem 2rem;max-width:1400px;margin:0 auto;align-items:center}.hero-content{color:var(--text-primary);z-index:2}.hero-badge{display:inline-flex;align-items:center;gap:.5rem;background:#0ea5e926;padding:.5rem 1.25rem;border-radius:50px;font-size:.875rem;font-weight:500;margin-bottom:2rem;-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px);border:1px solid var(--border-accent);color:var(--accent-secondary)}.badge-icon{font-size:1.25rem}.hero-title{font-size:4rem;font-weight:800;line-height:1.2;margin:0 0 1.5rem}.gradient-text{background:linear-gradient(to right,var(--accent-primary),var(--accent-secondary));-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text}.hero-subtitle{font-size:1.25rem;color:var(--text-secondary);line-height:1.6;margin-bottom:2.5rem;max-width:600px}.hero-buttons{display:flex;gap:1rem;margin-bottom:3rem}.btn-primary{background:var(--accent-gradient);color:var(--text-inverse);padding:1rem 2rem;border-radius:var(--radius-lg);border:none;font-size:1.125rem;font-weight:600;cursor:pointer;display:flex;align-items:center;gap:.5rem;transition:all var(--transition-fast);box-shadow:var(--glow-cyan)}.btn-primary:hover{transform:translateY(-2px);box-shadow:var(--glow-cyan-strong)}.btn-secondary{background:transparent;color:var(--text-primary);padding:1rem 2rem;border-radius:var(--radius-lg);border:2px solid var(--border-secondary);font-size:1.125rem;font-weight:600;cursor:pointer;display:flex;align-items:center;gap:.5rem;transition:all var(--transition-fast)}.btn-secondary:hover{border-color:var(--accent-primary);color:var(--accent-primary);transform:translateY(-2px)}.btn-icon,.play-icon{width:20px;height:20px}.hero-stats{display:flex;gap:2rem;align-items:center}.stat-item{display:flex;flex-direction:column;gap:.25rem}.stat-number{font-size:2rem;font-weight:700;color:var(--accent-primary)}.stat-label{font-size:.875rem;color:var(--text-muted)}.stat-divider{width:1px;height:40px;background:var(--border-secondary)}.hero-visual{position:relative;height:600px}.floating-card{position:absolute;background:var(--bg-card);border-radius:var(--radius-xl);padding:1.5rem;box-shadow:var(--shadow-lg);border:1px solid var(--border-primary);animation:float 6s ease-in-out infinite}.floating-card:hover{box-shadow:var(--glow-cyan);border-color:var(--border-accent)}.card-1{top:10%;left:10%;animation-delay:0s}.card-2{top:40%;right:10%;animation-delay:2s}.card-3{bottom:10%;left:20%;animation-delay:4s}@keyframes float{0%,to{transform:translateY(0)}50%{transform:translateY(-20px)}}.tweet-preview{width:280px}.tweet-header{display:flex;gap:.75rem;margin-bottom:1rem}.tweet-avatar{width:40px;height:40px;border-radius:50%;background:var(--accent-gradient);box-shadow:var(--glow-cyan-subtle)}.tweet-info{flex:1;display:flex;flex-direction:column;gap:.25rem}.tweet-name{width:120px;height:12px;background:var(--bg-tertiary);border-radius:4px}.tweet-handle{width:80px;height:10px;background:var(--bg-secondary);border-radius:4px}.tweet-content{display:flex;flex-direction:column;gap:.5rem}.tweet-line{height:10px;background:var(--text-secondary);border-radius:4px}.tweet-line.short{width:70%}.features-section,.how-it-works-section,.pricing-section{background:var(--bg-secondary);padding:6rem 2rem}.section-header{text-align:center;max-width:700px;margin:0 auto 4rem}.section-title{font-size:3rem;font-weight:800;color:var(--text-primary);margin:0 0 1rem}.section-subtitle{font-size:1.25rem;color:var(--text-secondary);margin:0}.features-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(300px,1fr));gap:2rem;max-width:1200px;margin:0 auto}.feature-card{padding:2rem;border-radius:var(--radius-xl);background:var(--bg-card);transition:all var(--transition-fast);border:1px solid var(--border-primary)}.feature-card:hover{transform:translateY(-5px);box-shadow:var(--glow-cyan);border-color:var(--border-accent)}.feature-icon{width:60px;height:60px;border-radius:var(--radius-md);display:flex;align-items:center;justify-content:center;margin-bottom:1.5rem}.feature-icon svg{width:30px;height:30px;color:#fff}.feature-icon.blue{background:var(--accent-gradient);box-shadow:var(--glow-cyan-subtle)}.feature-icon.purple{background:linear-gradient(135deg,#764ba2,#f093fb)}.feature-icon.green{background:linear-gradient(135deg,#11998e,#38ef7d)}.feature-icon.orange{background:linear-gradient(135deg,#fa709a,#fee140)}.feature-icon.pink{background:linear-gradient(135deg,#4facfe,#00f2fe)}.feature-icon.cyan{background:var(--accent-gradient);box-shadow:var(--glow-cyan-subtle)}.feature-title{font-size:1.5rem;font-weight:700;color:var(--text-primary);margin:0 0 .75rem}.feature-description{font-size:1rem;color:var(--text-secondary);line-height:1.6;margin:0}.steps-container{display:flex;align-items:center;justify-content:center;gap:2rem;max-width:1200px;margin:0 auto}.step-item{flex:1;text-align:center}.step-number{width:80px;height:80px;border-radius:50%;background:var(--accent-gradient);color:var(--text-inverse);font-size:2rem;font-weight:700;display:flex;align-items:center;justify-content:center;margin:0 auto 1.5rem;box-shadow:var(--glow-cyan)}.step-title{font-size:1.5rem;font-weight:700;color:var(--text-primary);margin:0 0 .75rem}.step-description{font-size:1rem;color:var(--text-secondary);line-height:1.6;margin:0}.step-connector{width:100px;height:2px;background:var(--accent-gradient);margin-top:-60px}.pricing-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(320px,1fr));gap:2rem;max-width:1200px;margin:0 auto}.pricing-card{background:var(--bg-card);border-radius:var(--radius-xl);padding:2.5rem;border:2px solid var(--border-primary);position:relative;transition:all var(--transition-fast)}.pricing-card:hover{transform:translateY(-5px);box-shadow:var(--glow-cyan);border-color:var(--border-accent)}.pricing-card.featured{border-color:var(--accent-primary);box-shadow:var(--glow-cyan)}.featured-badge{position:absolute;top:-15px;left:50%;transform:translate(-50%);background:var(--accent-gradient);color:var(--text-inverse);padding:.5rem 1.5rem;border-radius:50px;font-size:.875rem;font-weight:600;box-shadow:var(--glow-cyan-subtle)}.pricing-header{text-align:center;padding-bottom:2rem;border-bottom:2px solid var(--border-primary);margin-bottom:2rem}.pricing-name{font-size:1.5rem;font-weight:700;color:var(--text-primary);margin:0 0 1rem}.pricing-price{display:flex;align-items:baseline;justify-content:center;gap:.5rem;margin-bottom:1rem}.price-amount{font-size:3.5rem;font-weight:800;color:var(--accent-primary)}.price-period{font-size:1.125rem;color:var(--text-secondary)}.pricing-description{font-size:1rem;color:var(--text-secondary);margin:0}.pricing-features{list-style:none;padding:0;margin:0 0 2rem}.feature-item{display:flex;align-items:center;gap:.75rem;padding:.75rem 0;color:var(--text-primary)}.check-icon{width:20px;height:20px;color:var(--success);flex-shrink:0}.pricing-btn{width:100%;padding:1rem;border-radius:var(--radius-lg);border:2px solid var(--accent-primary);background:transparent;color:var(--accent-primary);font-size:1.125rem;font-weight:600;cursor:pointer;transition:all var(--transition-fast)}.pricing-btn:hover{background:#0ea5e91a}.pricing-btn.primary{background:var(--accent-gradient);color:var(--text-inverse);border:none}.pricing-btn.primary:hover{transform:translateY(-2px);box-shadow:var(--glow-cyan)}.cta-section{background:var(--bg-tertiary);padding:6rem 2rem;text-align:center;border-top:1px solid var(--border-primary);border-bottom:1px solid var(--border-primary)}.cta-content{max-width:800px;margin:0 auto;color:var(--text-primary)}.cta-title{font-size:3rem;font-weight:800;margin:0 0 1rem}.cta-subtitle{font-size:1.25rem;color:var(--text-secondary);margin:0 0 2.5rem}.cta-button{background:var(--accent-gradient);color:var(--text-inverse);padding:1.25rem 2.5rem;border-radius:var(--radius-lg);border:none;font-size:1.25rem;font-weight:600;cursor:pointer;display:inline-flex;align-items:center;gap:.75rem;transition:all var(--transition-fast);box-shadow:var(--glow-cyan)}.cta-button:hover{transform:translateY(-3px);box-shadow:var(--glow-cyan-strong)}.landing-footer{background:var(--bg-secondary);color:var(--text-muted);padding:4rem 2rem 2rem;border-top:1px solid var(--border-primary)}.footer-content{max-width:1200px;margin:0 auto;display:grid;grid-template-columns:2fr 3fr;gap:4rem;margin-bottom:3rem}.footer-brand{color:var(--text-primary)}.footer-logo{font-size:1.5rem;font-weight:700;margin:0 0 .5rem}.footer-tagline{color:var(--text-muted);margin:0}.footer-links{display:grid;grid-template-columns:repeat(3,1fr);gap:2rem}.footer-column{display:flex;flex-direction:column;gap:.75rem}.footer-column h4{color:var(--text-primary);font-weight:600;margin:0 0 .5rem}.footer-column a{color:var(--text-muted);text-decoration:none;transition:color var(--transition-fast)}.footer-column a:hover{color:var(--accent-primary)}.footer-bottom{text-align:center;padding-top:2rem;border-top:1px solid var(--border-primary);max-width:1200px;margin:0 auto}@media(max-width:768px){.header-container{flex-direction:column;align-items:flex-start}.header-nav{width:100%}.header-title{font-size:1.5rem}.content-grid{grid-template-columns:1fr}.result-header{flex-direction:column;align-items:flex-start}.tone-selector{flex-direction:column}.tone-option{min-width:100%}.content-card-actions{flex-direction:column}}.generator-tabs{display:flex;margin-bottom:2rem;border-bottom:2px solid var(--border-primary)}.tab-btn{flex:1;padding:1rem;background:none;border:none;font-size:1.1rem;font-weight:600;color:var(--text-secondary);cursor:pointer;transition:all var(--transition-fast);border-bottom:3px solid transparent;margin-bottom:-2px}.tab-btn:hover{color:var(--accent-primary);background-color:var(--bg-tertiary)}.tab-btn.active{color:var(--accent-primary);border-bottom-color:var(--accent-primary)}.blog-generator{animation:fadeIn .3s ease-in-out}@keyframes fadeIn{0%{opacity:0;transform:translateY(10px)}to{opacity:1;transform:translateY(0)}}.hook-input{width:100%;padding:.75rem 1rem;font-size:1rem;border:2px solid var(--border-primary);border-radius:var(--radius-md);transition:all var(--transition-fast);font-family:inherit;resize:vertical;background-color:var(--bg-input);color:var(--text-primary)}.hook-input:focus{outline:none;border-color:var(--accent-primary);box-shadow:var(--glow-cyan-subtle)}.style-selector{display:flex;gap:1rem;flex-wrap:wrap}.style-option{flex:1;min-width:200px;padding:1rem;border:2px solid var(--border-primary);border-radius:var(--radius-md);cursor:pointer;transition:all var(--transition-fast);display:flex;align-items:center;gap:.75rem;background-color:var(--bg-secondary);color:var(--text-primary)}.style-option:hover{border-color:var(--border-secondary);background-color:var(--bg-tertiary)}.style-option.selected{border-color:var(--accent-primary);background-color:#0ea5e91a;box-shadow:var(--glow-cyan-subtle)}.style-label{font-weight:500}.checkbox-group{margin:1.5rem 0}.checkbox-label{display:flex;align-items:center;gap:.75rem;cursor:pointer;font-weight:500;color:var(--text-primary)}.checkbox-label input[type=checkbox]{width:18px;height:18px;cursor:pointer;accent-color:var(--accent-primary)}.blog-result{background:var(--bg-card);padding:2rem;border-radius:var(--radius-lg);box-shadow:var(--shadow-card);margin-top:2rem;border:1px solid var(--border-primary)}.blog-content-preview{background:var(--bg-secondary);padding:2rem;border-radius:var(--radius-md);border:1px solid var(--border-primary);margin-bottom:1.5rem;max-height:600px;overflow-y:auto}.blog-text{white-space:pre-wrap;font-family:Georgia,serif;font-size:1.1rem;line-height:1.8;color:var(--text-primary);margin:0}.blog-meta{display:flex;gap:1rem;flex-wrap:wrap;padding-top:1rem;border-top:1px solid var(--border-primary)}.meta-tag{background-color:#0ea5e91a;color:var(--accent-primary);padding:.4rem .8rem;border-radius:20px;font-size:.85rem;font-weight:500}.history-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(300px,1fr));gap:1.5rem;margin-bottom:2rem}.history-card{background:var(--bg-card);border-radius:var(--radius-lg);padding:1.5rem;box-shadow:var(--shadow-card);cursor:pointer;transition:all var(--transition-fast);border:2px solid var(--border-primary);position:relative;display:flex;flex-direction:column;gap:1rem}.history-card:hover{transform:translateY(-4px);box-shadow:var(--glow-cyan);border-color:var(--border-accent)}.history-card.tweet{border-left:4px solid var(--accent-primary)}.history-card.blog{border-left:4px solid #F45D22}.history-card-icon{font-size:2rem}.history-card-content h3{margin:0 0 .5rem;font-size:1.1rem;color:var(--text-primary);line-height:1.4}.history-preview{color:var(--text-secondary);font-size:.9rem;margin:0 0 1rem;display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden}.history-meta{display:flex;justify-content:space-between;align-items:center;font-size:.85rem;color:var(--text-muted);margin-top:auto}.status-badge{padding:.25rem .5rem;border-radius:4px;font-size:.75rem;font-weight:600;text-transform:uppercase}.status-badge.generated,.status-badge.posted,.status-badge.published{background-color:#0ea5e91a;color:var(--accent-primary)}.status-badge.draft{background-color:var(--bg-tertiary);color:var(--text-muted)}.delete-btn-mini{position:absolute;top:1rem;right:1rem;background:none;border:none;cursor:pointer;opacity:0;transition:opacity var(--transition-fast);padding:.5rem;border-radius:50%}.history-card:hover .delete-btn-mini{opacity:1}.delete-btn-mini:hover{background-color:var(--danger-bg)}.modal-overlay{position:fixed;inset:0;background-color:#000c;display:flex;justify-content:center;align-items:center;z-index:1000;padding:2rem;-webkit-backdrop-filter:blur(4px);backdrop-filter:blur(4px)}.modal-content{background:var(--bg-card);border-radius:var(--radius-xl);width:100%;max-width:800px;max-height:90vh;display:flex;flex-direction:column;box-shadow:var(--shadow-lg);border:1px solid var(--border-primary);animation:slideUp .3s ease-out}@keyframes slideUp{0%{transform:translateY(20px);opacity:0}to{transform:translateY(0);opacity:1}}.modal-header{padding:1.5rem 2rem;border-bottom:1px solid var(--border-primary);display:flex;flex-direction:column;gap:.5rem}.modal-header h2{margin:0;font-size:1.5rem;color:var(--text-primary)}.modal-header p{margin:0;color:var(--text-secondary)}.modal-close{position:absolute;top:1rem;right:1rem;background:none;border:none;font-size:2rem;color:var(--text-muted);cursor:pointer;line-height:1;padding:.5rem;border-radius:50%;transition:all var(--transition-fast)}.modal-close:hover{background-color:var(--bg-tertiary);color:var(--text-primary)}.modal-body{padding:2rem;overflow-y:auto;flex:1}.actions-bar{margin-bottom:1.5rem;display:flex;justify-content:flex-end}