:root{--sidebar-width: 260px;--header-height: 60px;--header-height-mobile: 56px}.app-root{min-height:100vh}.app-shell{display:flex;min-height:100vh;background:var(--color-bg)}.mobile-header{position:fixed;top:0;left:0;right:0;height:var(--header-height-mobile);z-index:var(--z-sticky);display:flex;align-items:center;justify-content:space-between;gap:var(--space-3);padding:0 var(--space-4);background:rgba(var(--color-bg-elevated),.9);-webkit-backdrop-filter:saturate(180%) blur(20px);backdrop-filter:saturate(180%) blur(20px);border-bottom:1px solid var(--color-border)}@media(min-width:768px){.mobile-header{display:none}}.hamburger{display:inline-flex;flex-direction:column;gap:5px;width:40px;height:40px;align-items:center;justify-content:center;background:var(--color-bg-hover);border:1px solid var(--color-border);border-radius:var(--radius-md);cursor:pointer;transition:all var(--transition-fast);padding:0}.hamburger:hover{background:var(--color-bg-active);border-color:var(--color-border-strong)}.hamburger:focus-visible{box-shadow:var(--shadow-glow-sm)}.hamburger span{display:block;width:20px;height:2px;background:var(--color-text);border-radius:2px;transition:all var(--transition-normal);transform-origin:center}.hamburger[aria-expanded=true] span:nth-child(1){transform:translateY(7px) rotate(45deg)}.hamburger[aria-expanded=true] span:nth-child(2){opacity:0}.hamburger[aria-expanded=true] span:nth-child(3){transform:translateY(-7px) rotate(-45deg)}.brand{display:inline-flex;align-items:center;gap:var(--space-2);color:var(--color-text);text-decoration:none;font-weight:var(--weight-extrabold);font-size:var(--text-lg);letter-spacing:var(--tracking-tight);transition:opacity var(--transition-fast)}.brand:hover{opacity:.8}.brand-mark{display:inline-flex;align-items:center;justify-content:center;width:34px;height:34px;flex-shrink:0;color:var(--color-accent);background:linear-gradient(135deg,var(--color-accent-subtle),transparent);border:1px solid var(--color-accent-subtle);border-radius:var(--radius-lg);padding:5px;transition:transform var(--transition-spring)}.brand-mark svg{width:100%;height:100%;display:block}.brand-mark-small{width:28px;height:28px;border-radius:var(--radius-md);padding:4px}.sidebar-brand:hover .brand-mark{transform:rotate(-8deg) scale(1.05)}.header-create{display:inline-flex;align-items:center;justify-content:center;width:36px;height:36px;color:var(--color-text-muted);background:var(--color-bg-hover);border:1px solid var(--color-border);border-radius:var(--radius-md);transition:all var(--transition-fast)}.header-create:hover{color:var(--color-accent);border-color:var(--color-accent);background:var(--color-accent-subtle)}.brand-icon{width:28px;height:28px;flex-shrink:0}.brand-name{display:none}@media(min-width:480px){.brand-name{display:inline}}.backdrop{position:fixed;inset:0;z-index:var(--z-modal-backdrop);background:#0009;-webkit-backdrop-filter:blur(4px);backdrop-filter:blur(4px);opacity:0;visibility:hidden;transition:opacity var(--transition-normal),visibility var(--transition-normal)}@media(min-width:768px){.backdrop{display:none!important}}.backdrop.open{opacity:1;visibility:visible}.sidebar{position:fixed;top:0;left:0;bottom:0;width:var(--sidebar-width);z-index:var(--z-modal);background:var(--color-bg-elevated);border-right:1px solid var(--color-border);display:flex;flex-direction:column;transform:translate(-100%);transition:transform var(--transition-normal);overflow-y:auto;overscroll-behavior:contain}@media(min-width:768px){.sidebar{transform:none;position:sticky;height:100vh;max-height:100vh}}.sidebar.open{transform:translate(0)}.sidebar-header{display:flex;align-items:center;gap:var(--space-3);padding:var(--space-5) var(--space-4) var(--space-4);border-bottom:1px solid var(--color-border)}@media(min-width:768px){.sidebar-header{padding:var(--space-6) var(--space-4) var(--space-5)}}.sidebar-brand{display:inline-flex;align-items:center;gap:var(--space-2);color:var(--color-text);text-decoration:none;font-weight:var(--weight-extrabold);font-size:var(--text-lg);letter-spacing:var(--tracking-tight);transition:opacity var(--transition-fast)}.sidebar-brand:hover{opacity:.8}.sidebar-brand-icon{width:32px;height:32px;flex-shrink:0}.sidebar-nav{flex:1;padding:var(--space-4);display:flex;flex-direction:column;gap:var(--space-1)}.nav-item{display:flex;align-items:center;gap:var(--space-3);padding:var(--space-3) var(--space-4);border-radius:var(--radius-lg);color:var(--color-text-muted);text-decoration:none;font-weight:var(--weight-medium);font-size:var(--text-sm);transition:all var(--transition-fast);position:relative;overflow:hidden}.nav-section-label{display:block;padding:var(--space-2) var(--space-4) var(--space-1);font-size:var(--text-xs);font-weight:var(--weight-semibold);letter-spacing:var(--tracking-wide);text-transform:uppercase;color:var(--color-text-dim);-webkit-user-select:none;user-select:none}.sidebar-grow{flex:1}.create-link-button{display:flex;align-items:center;justify-content:center;gap:var(--space-2);padding:var(--space-3) var(--space-4);margin-top:var(--space-4);border-radius:var(--radius-lg);background:var(--color-accent);color:#fff;text-decoration:none;font-weight:var(--weight-semibold);font-size:var(--text-sm);border:none;cursor:pointer;transition:all var(--transition-fast);box-shadow:var(--shadow-glow-sm)}.create-link-button:hover{background:var(--color-accent-hover);box-shadow:var(--shadow-glow-md);transform:translateY(-1px)}.create-link-button:active{transform:translateY(0);box-shadow:var(--shadow-glow-sm)}.logout-button{display:flex;align-items:center;justify-content:center;gap:var(--space-2);width:100%;padding:var(--space-3) var(--space-4);border-radius:var(--radius-lg);background:transparent;border:1px solid var(--color-border);color:var(--color-text-muted);font-weight:var(--weight-medium);font-size:var(--text-sm);cursor:pointer;transition:all var(--transition-fast)}.logout-button:hover{background:var(--color-error-subtle);border-color:var(--color-error);color:var(--color-error)}.sidebar-copyright{margin-top:var(--space-4);text-align:center;font-size:var(--text-xs);color:var(--color-text-dim)}.content-container{width:100%;max-width:var(--max-width-content);margin:0 auto}.nav-item:before{content:"";position:absolute;left:0;top:0;bottom:0;width:3px;background:var(--color-accent);transform:scaleY(0);transform-origin:top;transition:transform var(--transition-spring);border-radius:0 var(--radius-sm) var(--radius-sm) 0}.nav-item:hover{background:var(--color-bg-hover);color:var(--color-text);padding-left:calc(var(--space-4) + 3px)}.nav-item:hover:before{transform:scaleY(1)}.nav-item.active{background:var(--color-accent-subtle);color:var(--color-accent);font-weight:var(--weight-semibold)}.nav-item.active:before{transform:scaleY(1)}.nav-icon{width:20px;height:20px;flex-shrink:0;stroke:currentColor;stroke-width:2;stroke-linecap:round;stroke-linejoin:round;fill:none}.nav-label{white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.sidebar-footer{padding:var(--space-4);border-top:1px solid var(--color-border)}.user-info{display:flex;align-items:center;gap:var(--space-3);padding:var(--space-3) var(--space-4);background:var(--color-bg-hover);border-radius:var(--radius-lg);margin-bottom:var(--space-3)}.user-avatar{width:36px;height:36px;border-radius:var(--radius-full);background:var(--color-accent-subtle);display:flex;align-items:center;justify-content:center;color:var(--color-accent);font-weight:var(--weight-bold);font-size:var(--text-sm);flex-shrink:0}.user-details{flex:1;min-width:0}.user-name{font-weight:var(--weight-semibold);font-size:var(--text-sm);color:var(--color-text);white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.user-email{font-size:var(--text-xs);color:var(--color-text-dim);white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.sidebar-actions{display:flex;flex-direction:column;gap:var(--space-2)}.app-main{flex:1;padding:calc(var(--header-height-mobile) + var(--space-4)) var(--space-4) var(--space-6);width:100%;max-width:100%}@media(min-width:768px){.app-main{margin-left:var(--sidebar-width);padding:var(--space-8) var(--space-8) var(--space-10);max-width:calc(100% - var(--sidebar-width))}}@media(min-width:1024px){.app-main{padding:var(--space-10) var(--space-10) var(--space-12)}}.page-header{margin-bottom:var(--space-8)}.page-title{font-size:var(--text-3xl);font-weight:var(--weight-extrabold);letter-spacing:var(--tracking-tight);color:var(--color-text);margin:0 0 var(--space-2);line-height:var(--leading-tight)}.page-subtitle{font-size:var(--text-base);color:var(--color-text-muted);margin:0;font-weight:var(--weight-normal);max-width:500px}.loading-screen{display:flex;flex-direction:column;align-items:center;justify-content:center;min-height:100vh;gap:var(--space-4);background:var(--color-bg);color:var(--color-text-muted);font-size:var(--text-base)}.loading-spinner{width:40px;height:40px;border:3px solid var(--color-border);border-top-color:var(--color-accent);border-radius:50%;animation:spin .8s linear infinite}.loading-text{font-size:var(--text-sm);color:var(--color-text-dim)}.visually-hidden{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0}.skip-link{position:absolute;top:-100%;left:var(--space-4);padding:var(--space-2) var(--space-4);background:var(--color-accent);color:var(--color-text-inverse);border-radius:var(--radius-md);font-weight:var(--weight-semibold);z-index:var(--z-tooltip);transition:top var(--transition-fast)}.skip-link:focus{top:var(--space-4)}:root{--color-bg: #06080d;--color-bg-elevated: #0c0f16;--color-bg-hover: #121721;--color-bg-active: #1a2030;--color-border: #1e2636;--color-border-strong: #2a3447;--color-text: #f1f3f8;--color-text-muted: #8b95a6;--color-text-dim: #5d6778;--color-text-inverse: #06080d;--color-accent: #5b4ff6;--color-accent-hover: #4c3fe8;--color-accent-active: #3d30d9;--color-accent-glow: rgba(91, 79, 246, .35);--color-accent-subtle: rgba(91, 79, 246, .12);--color-success: #10b981;--color-success-subtle: rgba(16, 185, 129, .12);--color-warning: #f59e0b;--color-warning-subtle: rgba(245, 158, 11, .12);--color-error: #ef4444;--color-error-subtle: rgba(239, 68, 68, .12);--font-sans: "Plus Jakarta Sans", system-ui, -apple-system, BlinkMacSystemFont, sans-serif;--font-mono: "Geist Mono", "JetBrains Mono", "Fira Code", monospace;--text-xs: clamp(.7rem, .68rem + .1vw, .75rem);--text-sm: clamp(.8125rem, .78rem + .16vw, .875rem);--text-base: clamp(.9375rem, .9rem + .19vw, 1rem);--text-lg: clamp(1.0625rem, 1rem + .31vw, 1.125rem);--text-xl: clamp(1.25rem, 1.15rem + .5vw, 1.375rem);--text-2xl: clamp(1.5rem, 1.35rem + .75vw, 1.75rem);--text-3xl: clamp(1.875rem, 1.6rem + 1.38vw, 2.25rem);--text-4xl: clamp(2.25rem, 1.8rem + 2.25vw, 3rem);--weight-normal: 400;--weight-medium: 500;--weight-semibold: 600;--weight-bold: 700;--weight-extrabold: 800;--leading-tight: 1.15;--leading-snug: 1.35;--leading-normal: 1.55;--leading-relaxed: 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1);--transition-normal: .2s cubic-bezier(.4, 0, .2, 1);--transition-slow: .3s cubic-bezier(.4, 0, .2, 1);--transition-spring: .35s cubic-bezier(.34, 1.56, .64, 1);--z-dropdown: 100;--z-sticky: 200;--z-modal-backdrop: 300;--z-modal: 400;--z-toast: 500;--z-tooltip: 600;--sidebar-width: 260px;--header-height: 60px;--header-height-mobile: 56px;--max-width-content: 1200px;--max-width-form: 440px;--bp-sm: 640px;--bp-md: 768px;--bp-lg: 1024px;--bp-xl: 1280px;--bp-2xl: 1536px}@media(prefers-color-scheme:light){:root{--color-bg: #f8f9fc;--color-bg-elevated: #ffffff;--color-bg-hover: #f0f2f7;--color-bg-active: #e8ebf2;--color-border: #e2e6ee;--color-border-strong: #d0d5dd;--color-text: #1a1d24;--color-text-muted: #5e6676;--color-text-dim: #8c94a3;--color-text-inverse: #ffffff;--color-accent: #4f46e5;--color-accent-hover: #4338ca;--color-accent-active: #3730a3;--color-accent-glow: rgba(79, 70, 229, .25);--color-accent-subtle: rgba(79, 70, 229, .1);--shadow-xs: 0 1px 2px rgba(15, 23, 42, .06);--shadow-sm: 0 2px 4px rgba(15, 23, 42, .08);--shadow-md: 0 6px 16px rgba(15, 23, 42, .1);--shadow-lg: 0 12px 32px rgba(15, 23, 42, .12);--shadow-xl: 0 24px 48px rgba(15, 23, 42, .15);--shadow-glow-sm: 0 0 0 1px var(--color-accent), 0 2px 8px var(--color-accent-glow);--shadow-glow-md: 0 0 0 1px var(--color-accent), 0 8px 24px var(--color-accent-glow)}}[data-theme=dark]{--color-bg: #06080d;--color-bg-elevated: #0c0f16;--color-bg-hover: #121721;--color-bg-active: #1a2030;--color-border: #1e2636;--color-border-strong: #2a3447;--color-text: #f1f3f8;--color-text-muted: #8b95a6;--color-text-dim: #5d6778;--color-text-inverse: #06080d;--color-accent: #5b4ff6;--color-accent-hover: #4c3fe8;--color-accent-active: #3d30d9;--color-accent-glow: rgba(91, 79, 246, .35);--color-accent-subtle: rgba(91, 79, 246, .12);--color-success: #10b981;--color-success-subtle: rgba(16, 185, 129, .12);--color-warning: #f59e0b;--color-warning-subtle: rgba(245, 158, 11, .12);--color-error: #ef4444;--color-error-subtle: rgba(239, 68, 68, .12);--shadow-xs: 0 1px 2px rgba(0, 0, 0, .3);--shadow-sm: 0 2px 4px rgba(0, 0, 0, .35);--shadow-md: 0 6px 16px rgba(0, 0, 0, .4);--shadow-lg: 0 12px 32px rgba(0, 0, 0, .45);--shadow-xl: 0 24px 48px rgba(0, 0, 0, .5);--shadow-glow-sm: 0 0 0 1px var(--color-accent), 0 2px 8px var(--color-accent-glow);--shadow-glow-md: 0 0 0 1px var(--color-accent), 0 8px 24px var(--color-accent-glow)}[data-theme=light]{--color-bg: #f8f9fc;--color-bg-elevated: #ffffff;--color-bg-hover: #f0f2f7;--color-bg-active: #e8ebf2;--color-border: #e2e6ee;--color-border-strong: #d0d5dd;--color-text: #1a1d24;--color-text-muted: #5e6676;--color-text-dim: #8c94a3;--color-text-inverse: #ffffff;--color-accent: #4f46e5;--color-accent-hover: #4338ca;--color-accent-active: #3730a3;--color-accent-glow: rgba(79, 70, 229, .25);--color-accent-subtle: rgba(79, 70, 229, .1);--shadow-xs: 0 1px 2px rgba(15, 23, 42, .06);--shadow-sm: 0 2px 4px rgba(15, 23, 42, .08);--shadow-md: 0 6px 16px rgba(15, 23, 42, .1);--shadow-lg: 0 12px 32px rgba(15, 23, 42, .12);--shadow-xl: 0 24px 48px rgba(15, 23, 42, .15)}*,*:before,*:after{box-sizing:border-box;margin:0;padding:0}html{font-size:16px;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale;text-rendering:optimizeLegibility}body{font-family:var(--font-sans);font-size:var(--text-base);font-weight:var(--weight-normal);line-height:var(--leading-normal);color:var(--color-text);background:var(--color-bg);letter-spacing:var(--tracking-normal);min-height:100vh;transition:background-color var(--transition-normal),color var(--transition-normal)}*:focus-visible{outline:none;ring:2px solid var(--color-accent);box-shadow:var(--shadow-glow-sm)}::selection{background:var(--color-accent-subtle);color:var(--color-text)}::-webkit-scrollbar{width:8px;height:8px}::-webkit-scrollbar-track{background:transparent}::-webkit-scrollbar-thumb{background:var(--color-border-strong);border-radius:var(--radius-full);border:2px solid 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