:root{--color-bg: #f8f9fc;--color-bg-alt: #f0f2f8;--color-surface: #ffffff;--color-surface-2: #eef0f8;--color-border: rgba(99, 102, 141, .15);--color-accent: #0d9488;--color-accent-light:#14b8a6;--color-accent-dim: rgba(13, 148, 136, .12);--color-text: #111827;--color-text-muted: #6b7280;--color-text-subtle: #9ca3af;--color-success: #10b981;--color-warning: #f59e0b;--color-danger: #ef4444;--color-info: #3b82f6;--glass-bg: rgba(255, 255, 255, .6);--glass-border: rgba(255, 255, 255, .3);--glass-blur: 16px;--glass-shadow: 0 8px 32px rgba(31, 38, 135, .1);--font-sans: "Pretendard Variable", "Pretendard", -apple-system, BlinkMacSystemFont, sans-serif;--font-heading: "Montserrat", var(--font-sans);--font-mono: "JetBrains Mono", "Fira Code", ui-monospace, monospace;--s1: 4px;--s2: 8px;--s3: 12px;--s4: 16px;--s5: 24px;--s6: 32px;--s7: 48px;--s8: 64px;--s9: 96px;--radius-sm: 6px;--radius-md: 12px;--radius-lg: 20px;--radius-xl: 28px;--radius-full: 9999px;--shadow-sm: 0 1px 3px rgba(0,0,0,.06), 0 1px 2px rgba(0,0,0,.04);--shadow-md: 0 4px 12px rgba(0,0,0,.08), 0 2px 4px rgba(0,0,0,.04);--shadow-lg: 0 12px 40px rgba(0,0,0,.12), 0 4px 12px rgba(0,0,0,.06);--shadow-xl: 0 24px 64px rgba(0,0,0,.16), 0 8px 24px rgba(0,0,0,.08);--ease-out: cubic-bezier(0, 0, .2, 1);--ease-spring: cubic-bezier(.34, 1.56, .64, 1);--ease-smooth: cubic-bezier(.4, 0, .2, 1);--dur-fast: .15s;--dur-base: .25s;--dur-slow: .4s;--header-h: 64px;--sidebar-w: 260px}[data-theme=dark]{--color-bg: #0d1117;--color-bg-alt: #161b22;--color-surface: #1c2128;--color-surface-2: #21262d;--color-border: rgba(140, 150, 200, .12);--color-accent: #14b8a6;--color-accent-light:#2dd4bf;--color-accent-dim: rgba(20, 184, 166, .15);--color-text: #e6edf3;--color-text-muted: #8b949e;--color-text-subtle: #484f58;--glass-bg: rgba(22, 27, 34, .7);--glass-border: rgba(140, 150, 200, .1);--glass-shadow: 0 8px 32px rgba(0, 0, 0, .4);--shadow-sm: 0 1px 3px rgba(0,0,0,.3);--shadow-md: 0 4px 12px rgba(0,0,0,.4);--shadow-lg: 0 12px 40px rgba(0,0,0,.5);--shadow-xl: 0 24px 64px rgba(0,0,0,.6)}*,*:before,*:after{box-sizing:border-box;margin:0;padding:0}html{font-size:16px;scroll-behavior:smooth;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale;text-rendering:optimizeLegibility}body{font-family:var(--font-sans);font-size:1rem;line-height:1.6;color:var(--color-text);background-color:var(--color-bg);min-height:100vh;transition:background-color var(--dur-base) var(--ease-smooth),color var(--dur-base) var(--ease-smooth)}.skip-nav{position:absolute;top:-100%;left:var(--s4);z-index:9999;padding:var(--s2) var(--s4);min-height:44px;display:inline-flex;align-items:center;background:var(--color-accent);color:#fff;font-weight:600;border-radius:var(--radius-sm);text-decoration:none;transition:top var(--dur-fast)}.skip-nav:focus{top:var(--s4)}h1,h2,h3,h4,h5,h6{font-family:var(--font-heading);font-weight:700;line-height:1.2;color:var(--color-text);letter-spacing:-.02em}h1{font-size:clamp(1.75rem,4vw,2.5rem)}h2{font-size:1.375rem}h3{font-size:1.0625rem}h4{font-size:1rem}a{color:var(--color-accent);text-decoration:none}a:hover{text-decoration:underline}:focus-visible{outline:2px solid var(--color-accent);outline-offset:3px;border-radius:var(--radius-sm)}.grain{position:relative}.grain:before{content:"";position:absolute;inset:0;pointer-events:none;z-index:0;background-image:url("data:image/svg+xml,%3Csvg viewBox='0 0 256 256' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='noise'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='4' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23noise)' opacity='0.04'/%3E%3C/svg%3E");background-repeat:repeat;background-size:128px;border-radius:inherit;opacity:.5}.glass-card{background:var(--glass-bg);backdrop-filter:blur(var(--glass-blur));-webkit-backdrop-filter:blur(var(--glass-blur));border:1px solid var(--glass-border);border-radius:var(--radius-lg);box-shadow:var(--glass-shadow);position:relative;overflow:hidden;transition:transform var(--dur-base) var(--ease-spring),box-shadow var(--dur-base) var(--ease-smooth)}.fade-up{opacity:0;transform:translateY(24px);transition:opacity var(--dur-slow) var(--ease-out),transform var(--dur-slow) var(--ease-out)}.fade-up.visible{opacity:1;transform:translateY(0)}.fade-up-delay-1{transition-delay:.1s}.fade-up-delay-2{transition-delay:.2s}.fade-up-delay-3{transition-delay:.3s}.fade-up-delay-4{transition-delay:.4s}@keyframes shimmer{0%{background-position:-400px 0}to{background-position:400px 0}}.skeleton{border-radius:var(--radius-sm);background:linear-gradient(90deg,var(--color-surface-2) 25%,var(--color-bg-alt) 50%,var(--color-surface-2) 75%);background-size:800px 100%;animation:shimmer 1.6s infinite linear}.btn{display:inline-flex;align-items:center;gap:var(--s2);padding:var(--s2) var(--s5);font-family:var(--font-sans);font-size:.9375rem;font-weight:600;line-height:1;min-height:44px;border:none;border-radius:var(--radius-md);cursor:pointer;position:relative;overflow:hidden;transition:transform var(--dur-fast) var(--ease-spring),box-shadow var(--dur-fast) var(--ease-smooth),background-color var(--dur-fast);-webkit-user-select:none;user-select:none}.btn:active{transform:scale(.97)}.btn-primary{background:var(--color-accent);color:#fff;box-shadow:0 4px 14px #4f46e559}.btn-primary:hover{background:var(--color-accent-light);box-shadow:0 6px 20px #4f46e573;transform:translateY(-1px)}.btn-secondary{background:var(--color-surface);color:var(--color-text);border:1px solid var(--color-border);box-shadow:var(--shadow-sm)}.btn-secondary:hover{background:var(--color-bg-alt);transform:translateY(-1px)}.btn-ghost{background:transparent;color:var(--color-text-muted);padding:var(--s2) var(--s3);min-width:44px;justify-content:center}.btn-ghost:hover{background:var(--color-accent-dim);color:var(--color-accent)}.btn-sm{padding:var(--s2) var(--s4);font-size:.875rem}.btn-lg{padding:var(--s3) var(--s6);font-size:1.0625rem;min-height:48px}.ripple-container{position:relative;overflow:hidden}.ripple-effect{position:absolute;border-radius:50%;background:#ffffff59;transform:scale(0);animation:ripple-anim .6s linear;pointer-events:none}@keyframes ripple-anim{to{transform:scale(4);opacity:0}}.header{position:sticky;top:0;z-index:100;height:var(--header-h);display:flex;align-items:center;padding:0 var(--s5);gap:var(--s4);border-bottom:1px solid var(--color-border);transition:background-color var(--dur-base),backdrop-filter var(--dur-base)}.header.scrolled{background:rgba(var(--color-bg),.8);backdrop-filter:blur(12px);-webkit-backdrop-filter:blur(12px)}[data-theme=dark] .header.scrolled{background:#0d1117d9}[data-theme=light] .header.scrolled{background:#f8f9fcd9}.layout{display:grid;grid-template-columns:var(--sidebar-w) 1fr;grid-template-rows:var(--header-h) 1fr;min-height:100vh}.layout-header{grid-column:1 / -1}.sidebar{grid-row:2;background:var(--color-surface);border-right:1px solid var(--color-border);padding:var(--s5) var(--s3);overflow-y:auto;height:calc(100vh - var(--header-h));position:sticky;top:var(--header-h)}.main-content{grid-row:2;padding:var(--s6);overflow-y:auto;max-width:1400px}@media(max-width:768px){.layout{grid-template-columns:1fr}.sidebar{display:none;position:fixed;inset:0;z-index:200;height:100vh;width:100%;padding:var(--s7) var(--s5)}.sidebar.open{display:flex;flex-direction:column}.main-content{padding:var(--s4)}}.bento-grid{display:grid;grid-template-columns:repeat(12,1fr);gap:var(--s4)}.bento-1{grid-column:span 3}.bento-2{grid-column:span 4}.bento-3{grid-column:span 6}.bento-4{grid-column:span 8}.bento-5{grid-column:span 12}.bento-tall{grid-row:span 2}@media(max-width:1024px){.bento-1,.bento-2{grid-column:span 6}.bento-3,.bento-4{grid-column:span 12}}@media(max-width:640px){.bento-1{grid-column:span 6}.bento-2,.bento-3,.bento-4{grid-column:span 12}.bento-tall{grid-row:span 1}}@media(max-width:768px){.bento-grid[role=list]{display:none}}.book-cards-scroll{display:none;gap:var(--s4);overflow-x:auto;padding-bottom:var(--s4);scroll-snap-type:x mandatory;-webkit-overflow-scrolling:touch}@media(max-width:768px){.book-cards-scroll{display:flex}.book-cards-scroll .book-card.fade-up{opacity:1;transform:none}}.book-cards-scroll::-webkit-scrollbar{height:6px}.book-cards-scroll::-webkit-scrollbar-track{background:transparent}.book-cards-scroll::-webkit-scrollbar-thumb{background:var(--color-border);border-radius:var(--radius-full)}.book-cards-scroll .book-card{flex:0 0 280px;scroll-snap-align:start}.book-card{background:var(--glass-bg);backdrop-filter:blur(var(--glass-blur));-webkit-backdrop-filter:blur(var(--glass-blur));border:1px solid var(--glass-border);border-radius:var(--radius-lg);padding:var(--s5);position:relative;overflow:hidden;transition:transform var(--dur-base) var(--ease-smooth),box-shadow var(--dur-base) var(--ease-smooth);transform-style:preserve-3d;will-change:transform}.book-card:hover{box-shadow:var(--shadow-lg)}.book-card-spotlight{position:absolute;inset:0;pointer-events:none;border-radius:inherit;opacity:0;transition:opacity var(--dur-base);background:radial-gradient(circle at var(--spotlight-x, 50%) var(--spotlight-y, 50%),rgba(99,102,241,.12) 0%,transparent 60%)}.book-card:hover .book-card-spotlight{opacity:1}.status-badge{display:inline-flex;align-items:center;gap:var(--s1);padding:3px 10px;border-radius:var(--radius-full);font-size:.75rem;font-weight:600;text-transform:uppercase;letter-spacing:.04em}.status-queued{background:var(--color-surface-2);color:var(--color-text-muted)}.status-researching,.status-planning,.status-reviewing,.status-writing,.status-editing,.status-building{background:#3b82f61f;color:#3b82f6}.status-done{background:#10b9811f;color:#10b981}.status-failed{background:#ef44441f;color:#ef4444}.phase-steps{display:flex;flex-direction:column;gap:var(--s2)}.phase-step{display:flex;align-items:center;gap:var(--s3);padding:var(--s3) var(--s4);border-radius:var(--radius-md);background:var(--color-surface-2);border:1px solid var(--color-border);transition:background var(--dur-fast)}.phase-step.active{background:var(--color-accent-dim);border-color:var(--color-accent)}.phase-step.done{background:#10b98114;border-color:#10b9814d}.phase-step.failed{background:#ef444414;border-color:#ef44444d}.phase-icon{width:28px;height:28px;border-radius:50%;display:flex;align-items:center;justify-content:center;flex-shrink:0;font-size:.75rem}.phase-step.active .phase-icon{background:var(--color-accent);color:#fff}.phase-step.done .phase-icon{background:var(--color-success);color:#fff}.phase-step.failed .phase-icon{background:var(--color-danger);color:#fff}.phase-step.pending .phase-icon{background:var(--color-surface-2);color:var(--color-text-subtle)}.stat-card{padding:var(--s4) var(--s5);display:flex;align-items:baseline;gap:var(--s3)}.stat-number{font-family:var(--font-heading);font-size:clamp(1.5rem,3vw,2.25rem);font-weight:800;color:var(--color-accent);line-height:1;font-variant-numeric:tabular-nums;flex-shrink:0}.stat-label{font-size:.875rem;color:var(--color-text-muted);line-height:1.3}.mobile-overlay{position:fixed;inset:0;z-index:300;display:flex;flex-direction:column;background:var(--color-bg);padding:var(--s5);transform:translate(-100%);transition:transform var(--dur-base) var(--ease-out)}.mobile-overlay.open{transform:translate(0)}.form-group{display:flex;flex-direction:column;gap:var(--s2)}.form-label{font-size:.875rem;font-weight:600;color:var(--color-text)}.form-input,.form-textarea,.form-select{width:100%;padding:var(--s3) var(--s4);font-family:var(--font-sans);font-size:.9375rem;color:var(--color-text);background:var(--color-surface);border:1.5px solid var(--color-border);border-radius:var(--radius-md);transition:border-color var(--dur-fast),box-shadow var(--dur-fast);outline:none}.form-input:focus,.form-textarea:focus,.form-select:focus{border-color:var(--color-accent);box-shadow:0 0 0 3px var(--color-accent-dim)}.form-textarea{resize:vertical;min-height:96px}.modal-backdrop{position:fixed;inset:0;z-index:400;background:#00000080;backdrop-filter:blur(4px);display:flex;align-items:center;justify-content:center;padding:var(--s4);animation:fade-in var(--dur-base) var(--ease-out)}.modal-box{background:var(--color-surface);border:1px solid var(--color-border);border-radius:var(--radius-xl);padding:var(--s6);width:100%;max-width:540px;box-shadow:var(--shadow-xl);animation:slide-up var(--dur-base) var(--ease-spring)}@keyframes fade-in{0%{opacity:0}to{opacity:1}}@keyframes slide-up{0%{transform:translateY(16px);opacity:0}to{transform:translateY(0);opacity:1}}.social-proof{display:flex;align-items:center;gap:var(--s3);flex-wrap:wrap}.trust-badge{display:inline-flex;align-items:center;gap:var(--s2);padding:var(--s1) var(--s3);background:var(--color-surface-2);border:1px solid var(--color-border);border-radius:var(--radius-full);font-size:.8125rem;font-weight:500;color:var(--color-text-muted)}.live-indicator{display:inline-flex;align-items:center;gap:var(--s1);font-size:.8125rem;font-weight:600;color:var(--color-success)}.live-dot{width:8px;height:8px;border-radius:50%;background:var(--color-success);animation:pulse-dot 2s infinite}@keyframes pulse-dot{0%,to{transform:scale(1);opacity:1}50%{transform:scale(1.4);opacity:.7}}.nav-item{display:flex;align-items:center;gap:var(--s3);padding:var(--s2) var(--s3);min-height:44px;border-radius:var(--radius-md);font-size:.9375rem;font-weight:500;color:var(--color-text-muted);cursor:pointer;text-decoration:none;transition:background var(--dur-fast),color var(--dur-fast);border:none;background:none;width:100%;text-align:left}.nav-item:hover{background:var(--color-accent-dim);color:var(--color-accent)}.nav-item.active{background:var(--color-accent-dim);color:var(--color-accent);font-weight:600}@keyframes spin{to{transform:rotate(360deg)}}.spinner{width:20px;height:20px;border:2px solid var(--color-border);border-top-color:var(--color-accent);border-radius:50%;animation:spin .7s linear infinite;display:inline-block}.divider{height:1px;background:var(--color-border);margin:var(--s4) 0}.text-muted{color:var(--color-text-muted)}.text-accent{color:var(--color-accent)}.text-success{color:var(--color-success)}.text-danger{color:var(--color-danger)}.font-heading{font-family:var(--font-heading)}.sr-only{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0}@media(prefers-reduced-motion:reduce){*,*:before,*:after{animation-duration:.01ms!important;animation-iteration-count:1!important;transition-duration:.01ms!important;scroll-behavior:auto!important}}