:root{--md-primary: #1560BD;--md-on-primary: #FFFFFF;--md-primary-container: #D2E4FA;--md-on-primary-container: #0A305E;--md-secondary: #008B8B;--md-on-secondary: #FFFFFF;--md-secondary-container: #C1FFFF;--md-on-secondary-container: #002E2E;--md-tertiary: #4666FF;--md-on-tertiary: #FFFFFF;--md-tertiary-container: #E0E5FF;--md-on-tertiary-container: #000936;--md-surface: #FDFCFF;--md-on-surface: #1A1C1E;--md-surface-variant: #DFE2EB;--md-on-surface-variant: #43474E;--md-surface-0: #FDFCFF;--md-surface-1: #F4F7FC;--md-surface-2: #EFF2F8;--md-surface-3: #E9EDF4;--md-surface-4: #E7EBF3;--md-surface-5: #E4E8F1;--md-outline: #74777F;--md-outline-variant: #C4C6D0;--md-background: #FDFCFF;--md-on-background: #1A1C1E;--md-error: #BA1A1A;--md-on-error: #FFFFFF;--md-error-container: #FFDAD6;--md-on-error-container: #410002;--spacing-1: .5rem;--spacing-2: 1rem;--spacing-3: 1.5rem;--spacing-4: 2rem;--spacing-5: 2.5rem;--spacing-6: 3rem;--spacing-7: 3.5rem;--spacing-8: 4rem;--font-sans: "Roboto", "Roboto Flex", sans-serif;--display-large: 3.5625rem;--display-medium: 2.8125rem;--display-small: 2.25rem;--headline-large: 2rem;--headline-medium: 1.75rem;--headline-small: 1.5rem;--title-large: 1.375rem;--title-medium: 1rem;--title-small: .875rem;--body-large: 1rem;--body-medium: .875rem;--body-small: .75rem;--label-large: .875rem;--label-medium: .75rem;--label-small: .6875rem;--line-height-tight: 1.2;--line-height-normal: 1.5;--line-height-relaxed: 1.6;--elevation-1: none;--elevation-2: none;--elevation-3: none;--elevation-4: none;--elevation-5: none;--duration-short: .15s;--duration-medium: .25s;--duration-long: .4s;--easing-standard: cubic-bezier(.4, 0, .2, 1);--easing-emphasized: cubic-bezier(.2, 0, 0, 1)}*{margin:0;padding:0;box-sizing:border-box}::selection{background-color:var(--md-primary);color:var(--md-on-primary)}::-moz-selection{background-color:var(--md-primary);color:var(--md-on-primary)}html{scroll-behavior:smooth}body{font-family:var(--font-sans);font-size:var(--body-large);line-height:var(--line-height-normal);color:var(--md-on-background);background-color:var(--md-background);overflow-x:hidden}h1,h2,h3,h4,h5,h6,p,a,span,button{text-shadow:none!important}.overline{font-size:var(--label-small);font-weight:500;letter-spacing:.1em;text-transform:uppercase;color:var(--md-primary)}.label-small{font-size:var(--label-small);font-weight:500;letter-spacing:.05em;text-transform:uppercase;color:var(--md-on-surface-variant)}.nav-rail{position:fixed;left:0;top:0;bottom:0;width:5rem;background-color:var(--md-surface-2);display:flex;flex-direction:column;align-items:center;padding:var(--spacing-2) 0;z-index:100}.nav-rail-header,.nav-rail-footer{padding:var(--spacing-2) 0}.nav-rail-items{flex:1;display:flex;flex-direction:column;gap:var(--spacing-1);padding:var(--spacing-3) 0}.nav-rail-item{position:relative;width:3.5rem;height:3.5rem;border-radius:1rem;display:flex;flex-direction:column;align-items:center;justify-content:center;text-decoration:none;color:var(--md-on-surface-variant);transition:background-color var(--duration-short) var(--easing-standard);overflow:hidden}.nav-rail-item .material-symbols-rounded{font-size:1.5rem}.nav-rail-item .nav-label{font-size:var(--label-small);margin-top:.25rem;font-weight:500}.nav-rail-item:hover{background-color:var(--md-surface-variant)}.nav-rail-item.active{background-color:var(--md-secondary-container);color:var(--md-on-secondary-container)}.mobile-drawer{position:fixed;left:-17.5rem;top:0;bottom:0;width:17.5rem;background-color:var(--md-surface-2);z-index:200;transition:left var(--duration-medium) var(--easing-emphasized);overflow-y:auto}.mobile-drawer.open{left:0;border-right:1px solid var(--md-outline-variant)}.drawer-overlay{position:fixed;inset:0;background-color:#00000080;z-index:150;opacity:0;pointer-events:none;transition:opacity var(--duration-medium) var(--easing-standard)}.drawer-overlay.active{opacity:1;pointer-events:auto}.drawer-header{padding:var(--spacing-3);display:flex;justify-content:space-between;align-items:center;border-bottom:1px solid var(--md-outline-variant)}.drawer-header h3{font-size:var(--title-large);font-weight:500;color:var(--md-on-surface)}.drawer-nav{padding:var(--spacing-2) 0}.drawer-item{display:flex;align-items:center;gap:var(--spacing-2);padding:var(--spacing-2) var(--spacing-3);text-decoration:none;color:var(--md-on-surface);transition:background-color var(--duration-short) var(--easing-standard);position:relative;overflow:hidden}.drawer-item:hover{background-color:var(--md-surface-variant)}.drawer-item .material-symbols-rounded{font-size:1.5rem;color:var(--md-on-surface-variant)}.drawer-item span:last-child{font-size:var(--body-large);font-weight:500}.profile-btn-mobile{width:100%;border:none;background:transparent;cursor:pointer;text-align:left}.drawer-divider{height:1px;background-color:var(--md-outline-variant);margin:var(--spacing-2) var(--spacing-3)}.bottom-nav{display:none;position:fixed;bottom:0;left:0;right:0;height:5rem;background-color:var(--md-surface-2);z-index:100;justify-content:space-around;align-items:center;padding:0 var(--spacing-1)}.bottom-nav-item{position:relative;display:flex;flex-direction:column;align-items:center;justify-content:center;text-decoration:none;color:var(--md-on-surface-variant);padding:var(--spacing-1) var(--spacing-2);border-radius:1rem;min-width:4rem;transition:background-color var(--duration-short) var(--easing-standard);overflow:hidden}.bottom-nav-item .material-symbols-rounded{font-size:1.5rem}.bottom-nav-item .nav-label{font-size:var(--label-small);margin-top:4px;font-weight:500}.bottom-nav-item.active{background-color:var(--md-secondary-container);color:var(--md-on-secondary-container)}.main-content{margin-left:5rem;padding-bottom:var(--spacing-8)}.top-app-bar{background-color:var(--md-surface);padding:var(--spacing-2) var(--spacing-3);position:sticky;top:0;z-index:50}.top-app-bar-content{display:flex;align-items:center;justify-content:space-between;max-width:75rem;margin:0 auto;gap:var(--spacing-2)}.mobile-menu-btn{display:none;flex-shrink:0}.top-app-bar-title h1{font-size:var(--title-large);font-weight:500;color:var(--md-on-surface)}.subtitle{font-size:var(--body-small);color:var(--md-on-surface-variant);margin-top:.25rem}.top-app-bar-actions{display:flex;gap:var(--spacing-1)}.icon-btn{position:relative;width:2.5rem;height:2.5rem;border-radius:50%;border:none;background-color:transparent;color:var(--md-on-surface-variant);display:flex;align-items:center;justify-content:center;cursor:pointer;transition:background-color var(--duration-short) var(--easing-standard);overflow:hidden}.icon-btn:hover{background-color:var(--md-surface-variant)}.icon-btn .material-symbols-rounded{font-size:1.5rem}.hero-section{padding:var(--spacing-8) var(--spacing-3);max-width:75rem;margin:0 auto;display:flex;align-items:center;justify-content:space-between;position:relative;overflow:visible}.hero-content{max-width:37.5rem;z-index:2;position:relative}.hero-visual{position:relative;width:31.25rem;height:31.25rem;z-index:1}.shape{position:absolute;opacity:.9;transition:transform .5s ease}.shape-circle{width:18.75rem;height:18.75rem;border-radius:50%;background-color:var(--md-primary-container);top:10%;right:10%;animation:float 6s ease-in-out infinite}.shape-square{width:11.25rem;height:11.25rem;background-color:#ffdad6;border-radius:1.5rem;bottom:20%;left:20%;transform:rotate(-15deg);animation:float 8s ease-in-out infinite reverse}.shape-pill{width:6.25rem;height:2.5rem;background-color:#c6ebc5;border-radius:3.125rem;top:20%;left:10%;animation:float 9s ease-in-out infinite 2s}@keyframes float{0%,to{transform:translateY(0) rotate(0)}50%{transform:translateY(-1.25rem) rotate(2deg)}}.hero-title{font-size:var(--display-medium);font-weight:400;line-height:var(--line-height-tight);color:var(--md-on-surface);margin:var(--spacing-2) 0}.hero-description{font-size:var(--body-large);line-height:var(--line-height-relaxed);color:var(--md-on-surface-variant);margin:var(--spacing-3) 0}.button-group{display:flex;gap:var(--spacing-2);margin-top:var(--spacing-4)}.search-container{width:0;overflow:hidden;transition:width .3s cubic-bezier(.4,0,.2,1);display:flex;align-items:center}.search-container.active{width:15rem}.search-input{width:100%;height:2.5rem;border:none;background:var(--md-surface-2);border-radius:1.25rem;padding:0 1rem;font-family:var(--font-sans);color:var(--md-on-surface);outline:none}.menu-container{position:relative}.dropdown-menu{position:absolute;top:100%;right:0;width:12.5rem;background:var(--md-surface-2);border-radius:.75rem;padding:.5rem 0;display:none;flex-direction:column;z-index:100;border:1px solid var(--md-outline-variant)}.dropdown-menu.active{display:flex}.dropdown-item{padding:.75rem 1rem;text-decoration:none;color:var(--md-on-surface);font-size:.875rem;transition:background .2s}.dropdown-item:hover{background:var(--md-surface-variant)}.dropdown-item[aria-disabled=true]{opacity:.45;cursor:default;pointer-events:none}.btn-filled,.btn-outlined,.btn-text{position:relative;padding:10px var(--spacing-3);border-radius:1.25rem;font-family:var(--font-sans);font-size:var(--label-large);font-weight:500;cursor:pointer;transition:background-color var(--duration-short) var(--easing-standard),color var(--duration-short) var(--easing-standard),border-color var(--duration-short) var(--easing-standard);overflow:hidden;border:none;min-height:2.5rem}a.btn-filled,a.btn-outlined{display:inline-flex;align-items:center;justify-content:center;text-decoration:none}.btn-filled{background-color:var(--md-primary);color:var(--md-on-primary)}.btn-filled:hover{background-color:var(--md-primary)}.btn-outlined{background-color:transparent;color:var(--md-primary);border:1px solid var(--md-outline)}.btn-outlined:hover{background-color:#1560bd14}.btn-text{background-color:transparent;color:var(--md-primary);padding:10px var(--spacing-2)}.btn-text:hover{background-color:#1560bd14}.section-title{font-size:var(--headline-medium);font-weight:400;color:var(--md-on-surface);margin-bottom:var(--spacing-3)}.section-subtitle{font-size:var(--body-medium);color:var(--md-on-surface-variant);margin-top:var(--spacing-1)}.principles-section{padding:var(--spacing-6) var(--spacing-3);max-width:75rem;margin:0 auto}.principles-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(18.75rem,1fr));gap:var(--spacing-3);margin-top:var(--spacing-4)}.surface-0{background-color:var(--md-surface-0)}.surface-1{background-color:var(--md-surface-1)}.surface-2{background-color:var(--md-surface-2)}.surface-3{background-color:var(--md-surface-3)}.principle-card{padding:var(--spacing-3);border-radius:1rem;position:relative;overflow:hidden}.principle-icon{width:3rem;height:3rem;border-radius:50%;background-color:var(--md-primary-container);color:var(--md-on-primary-container);display:inline-flex;align-items:center;justify-content:center;margin-bottom:var(--spacing-2)}.principle-icon .material-symbols-rounded{font-size:1.5rem}.principle-card h3{font-size:var(--title-large);font-weight:500;color:var(--md-on-surface);margin-bottom:var(--spacing-2)}.principle-card p{font-size:var(--body-medium);line-height:var(--line-height-relaxed);color:var(--md-on-surface-variant);margin-bottom:var(--spacing-3)}.card-footer{margin-top:var(--spacing-2)}.demo-section{padding:var(--spacing-6) var(--spacing-3);max-width:75rem;margin:0 auto}.demo-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(20rem,1fr));gap:var(--spacing-3);margin-top:var(--spacing-4)}.demo-card{padding:var(--spacing-3);border-radius:1rem}.demo-title{font-size:var(--title-medium);font-weight:500;color:var(--md-on-surface);margin-bottom:var(--spacing-1)}.demo-description{font-size:var(--body-small);color:var(--md-on-surface-variant);margin-bottom:var(--spacing-3)}.button-showcase{display:flex;flex-direction:column;gap:var(--spacing-2);align-items:flex-start}.elevation-showcase{display:flex;gap:var(--spacing-2);flex-wrap:wrap}.elevation-sample{padding:var(--spacing-2) var(--spacing-3);border-radius:8px;font-size:var(--label-small);font-weight:500;text-transform:uppercase;letter-spacing:.05em}.spacing-showcase{display:flex;flex-direction:column;gap:var(--spacing-1)}.spacing-bar{height:32px;background-color:var(--md-primary);color:var(--md-on-primary);display:flex;align-items:center;justify-content:center;border-radius:4px;font-size:var(--label-small);font-weight:500}.manifesto-section{padding:var(--spacing-8) var(--spacing-3);margin:var(--spacing-8) var(--spacing-3);border-radius:24px;max-width:1200px;margin-left:auto;margin-right:auto}.manifesto-content{max-width:800px;margin:0 auto}.manifesto-content h2{font-size:var(--headline-large);font-weight:400;color:var(--md-on-surface);margin:var(--spacing-2) 0 var(--spacing-4) 0}.manifesto-text p{font-size:var(--body-large);line-height:var(--line-height-relaxed);color:var(--md-on-surface-variant);margin-bottom:var(--spacing-3)}.manifesto-quote{border-left:4px solid var(--md-primary);padding-left:var(--spacing-3);margin:var(--spacing-4) 0;font-style:italic;color:var(--md-on-surface)}.fab{position:fixed;right:var(--spacing-3);bottom:var(--spacing-3);width:56px;height:56px;border-radius:16px;background-color:var(--md-primary-container);color:var(--md-on-primary-container);border:none;display:flex;align-items:center;justify-content:center;cursor:pointer;transition:all var(--duration-short) var(--easing-standard);z-index:90;overflow:hidden}.fab:hover{background-color:var(--md-tertiary)}.fab .material-symbols-outlined{font-size:24px}.material-dialog{border:none;border-radius:24px;padding:0;max-width:560px;width:90%;background-color:var(--md-surface-3);border:1px solid var(--md-outline-variant)}.material-dialog::backdrop{background-color:#0006}.dialog-header{padding:var(--spacing-3);display:flex;justify-content:space-between;align-items:center}.dialog-header h3{font-size:var(--title-large);font-weight:500;color:var(--md-on-surface)}.dialog-content{padding:0 var(--spacing-3) var(--spacing-3)}.dialog-content p{font-size:var(--body-medium);line-height:var(--line-height-relaxed);color:var(--md-on-surface-variant);margin-bottom:var(--spacing-2)}.dialog-actions{padding:var(--spacing-3);display:flex;justify-content:flex-end;gap:var(--spacing-2)}.footer-section{padding:var(--spacing-6) var(--spacing-3);max-width:1200px;margin:0 auto}.back-link{display:inline-flex;align-items:center;gap:var(--spacing-1);padding:var(--spacing-2) var(--spacing-3);border-radius:20px;text-decoration:none;color:var(--md-primary);font-size:var(--label-large);font-weight:500;transition:background-color var(--duration-short) var(--easing-standard);position:relative;overflow:hidden}.back-link:hover{background-color:#1560bd14}.philosophy-section{padding:var(--spacing-8) var(--spacing-3);margin:var(--spacing-6) var(--spacing-3);border-radius:24px;max-width:1200px;margin-left:auto;margin-right:auto}.philosophy-content{max-width:1000px;margin:0 auto}.philosophy-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(280px,1fr));gap:var(--spacing-4);margin-top:var(--spacing-4)}.philosophy-item h3{font-size:var(--title-large);font-weight:500;color:var(--md-on-surface);margin-bottom:var(--spacing-2)}.philosophy-item p{font-size:var(--body-medium);line-height:var(--line-height-relaxed);color:var(--md-on-surface-variant)}.philosophy-list{list-style:none;padding:0}.philosophy-list li{font-size:var(--body-medium);line-height:var(--line-height-relaxed);color:var(--md-on-surface-variant);margin-bottom:var(--spacing-2);padding-left:var(--spacing-3);position:relative}.philosophy-list li:before{content:"•";position:absolute;left:0;color:var(--md-primary);font-weight:700}.patterns-section{padding:var(--spacing-6) var(--spacing-3);max-width:1200px;margin:0 auto}.patterns-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(320px,1fr));gap:var(--spacing-3);margin-top:var(--spacing-4)}.pattern-card{padding:var(--spacing-3);border-radius:16px}.pattern-header{display:flex;align-items:center;gap:var(--spacing-2);margin-bottom:var(--spacing-2)}.pattern-icon{width:3rem;height:3rem;border-radius:50%;background-color:var(--md-primary-container);color:var(--md-on-primary-container);display:inline-flex;align-items:center;justify-content:center;flex-shrink:0}.pattern-icon .material-symbols-rounded{font-size:1.5rem}.pattern-card h3{font-size:var(--title-medium);font-weight:500;color:var(--md-on-surface)}.pattern-description{font-size:var(--body-medium);line-height:var(--line-height-relaxed);color:var(--md-on-surface-variant);margin-bottom:var(--spacing-3)}.pattern-examples,.color-roles,.type-scale,.state-info,.elevation-explanation,.motion-principles{margin:var(--spacing-3) 0}.pattern-tag{display:inline-block;padding:6px var(--spacing-2);margin:4px 4px 4px 0;border-radius:8px;font-size:var(--label-small);font-weight:500;background-color:var(--md-surface-variant);color:var(--md-on-surface-variant)}.pattern-note{font-size:var(--body-small);color:var(--md-on-surface-variant);margin-top:var(--spacing-2);padding-top:var(--spacing-2);border-top:1px solid var(--md-outline-variant)}.color-sample{display:inline-block;padding:var(--spacing-2) var(--spacing-3);margin:4px;border-radius:8px;font-size:var(--label-medium);font-weight:500}.primary-bg{background-color:var(--md-primary);color:var(--md-on-primary)}.secondary-bg{background-color:var(--md-secondary);color:var(--md-on-secondary)}.tertiary-bg{background-color:var(--md-tertiary);color:var(--md-on-tertiary)}.error-bg{background-color:var(--md-error);color:var(--md-on-error)}.type-sample{margin-bottom:var(--spacing-2);color:var(--md-on-surface)}.type-sample.display{font-size:var(--display-small);font-weight:400}.type-sample.headline{font-size:var(--headline-medium);font-weight:400}.type-sample.title{font-size:var(--title-large);font-weight:500}.type-sample.body{font-size:var(--body-medium)}.type-sample.label{font-size:var(--label-small);font-weight:500;text-transform:uppercase;letter-spacing:.05em}.state-demo{display:flex;flex-direction:column;gap:var(--spacing-2)}.state-button{padding:var(--spacing-2) var(--spacing-3);border-radius:20px;border:1px solid var(--md-outline);background-color:transparent;color:var(--md-on-surface);font-size:var(--label-large);font-weight:500;cursor:pointer;transition:background-color var(--duration-short) var(--easing-standard);position:relative;overflow:hidden}.state-button:hover{background-color:#1a1c1e14}.state-item{font-size:var(--body-small);color:var(--md-on-surface-variant);padding:4px 0}.elevation-demo-item{padding:var(--spacing-2) var(--spacing-3);margin:4px 0;border-radius:8px;font-size:var(--label-medium);font-weight:500}.motion-item{font-size:var(--body-small);color:var(--md-on-surface-variant);padding:4px 0;margin-bottom:var(--spacing-1)}.resources-section{padding:var(--spacing-8) var(--spacing-3);margin:var(--spacing-6) var(--spacing-3);border-radius:24px;max-width:1200px;margin-left:auto;margin-right:auto}.resources-content{max-width:1000px;margin:0 auto}.resources-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(240px,1fr));gap:var(--spacing-3);margin-top:var(--spacing-4)}.resource-card{padding:var(--spacing-3);border-radius:16px;background-color:var(--md-surface-3);text-decoration:none;color:var(--md-on-surface);transition:all var(--duration-short) var(--easing-standard);display:flex;flex-direction:column;align-items:center;text-align:center;position:relative;overflow:hidden}.resource-card:hover{background-color:var(--md-surface-variant);border-color:var(--md-outline)}.resource-card .material-symbols-outlined{font-size:48px;color:var(--md-primary);margin-bottom:var(--spacing-2)}.resource-card h3{font-size:var(--title-medium);font-weight:500;margin-bottom:var(--spacing-1)}.resource-card p{font-size:var(--body-small);color:var(--md-on-surface-variant)}.profile-section{display:flex;align-items:center;gap:var(--spacing-2);padding:var(--spacing-3);background-color:var(--md-surface-2);border-radius:12px;margin-bottom:var(--spacing-3)}.profile-avatar{width:64px;height:64px;border-radius:50%;background-color:var(--md-primary-container);color:var(--md-on-primary-container);display:flex;align-items:center;justify-content:center}.profile-avatar .material-symbols-outlined{font-size:48px}.profile-info h4{font-size:var(--title-medium);font-weight:500;color:var(--md-on-surface);margin-bottom:4px}.profile-email{font-size:var(--body-small);color:var(--md-on-surface-variant)}.profile-menu{display:flex;flex-direction:column}.profile-menu-item{display:flex;align-items:center;gap:var(--spacing-2);padding:var(--spacing-2) var(--spacing-2);text-decoration:none;color:var(--md-on-surface);border-radius:8px;transition:background-color var(--duration-short) var(--easing-standard);position:relative;overflow:hidden}.profile-menu-item:hover{background-color:var(--md-surface-variant)}.profile-menu-item .material-symbols-outlined{font-size:24px;color:var(--md-on-surface-variant)}.profile-menu-item span:last-child{font-size:var(--body-medium)}.profile-menu .drawer-divider{margin:var(--spacing-1) 0}.ripple{position:absolute;border-radius:50%;background-color:#fff9;transform:scale(0);animation:ripple-animation var(--duration-long) var(--easing-emphasized);pointer-events:none}@keyframes ripple-animation{to{transform:scale(4);opacity:0}}@media(max-width:768px){.nav-rail{display:none}.mobile-menu-btn{display:inline-flex}.bottom-nav{display:flex}.bottom-nav-item{min-width:3rem;padding:var(--spacing-1)}.bottom-nav-item .nav-label{font-size:.625rem}.main-content{margin-left:0;padding-bottom:calc(80px + var(--spacing-3))}.fab{bottom:calc(80px + var(--spacing-3))}.hero-title{font-size:var(--display-small)}.principles-grid,.demo-grid,.projects-grid,.patterns-grid,.resources-grid,.philosophy-grid{grid-template-columns:1fr}.hero-section{flex-direction:column-reverse;text-align:center;padding-top:var(--spacing-4)}.hero-content{max-width:100%}.hero-visual{width:100%;height:300px;margin-bottom:var(--spacing-4)}.shape-circle{width:200px;height:200px}.button-group{flex-direction:column}.button-group .btn-filled,.button-group .btn-outlined{width:100%}.section-header{flex-direction:column;gap:var(--spacing-2)}}@media(prefers-reduced-motion:reduce){*,*:before,*:after{animation-duration:.01ms!important;animation-iteration-count:1!important;transition-duration:.01ms!important}}:focus-visible{outline:2px solid var(--md-primary);outline-offset:2px}@media(prefers-contrast:high){.btn-outlined{border-width:2px}}