.layout{min-height:100vh;display:flex;flex-direction:column}.layout-main{flex:1}.route-fallback{display:flex;align-items:center;justify-content:center;min-height:60vh}.route-fallback-spinner{width:36px;height:36px;border-radius:50%;border:3px solid var(--line);border-top-color:var(--accent);animation:route-fallback-spin .8s linear infinite}@keyframes route-fallback-spin{to{transform:rotate(360deg)}}.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}.site-header{position:sticky;top:0;z-index:50;background:#faf6efd9;backdrop-filter:blur(12px);-webkit-backdrop-filter:blur(12px);border-bottom:1px solid var(--line)}.header-inner{display:flex;align-items:center;justify-content:space-between;gap:2.5rem;padding-top:1rem;padding-bottom:1rem}.brand{display:inline-flex;align-items:center;gap:.6rem;font-family:var(--font-display);font-weight:900;font-size:1.4rem;letter-spacing:-.03em;color:var(--ink)}.brand-mark{display:inline-block;width:36px;height:36px;object-fit:contain;transition:transform .3s ease}.brand:hover .brand-mark{transform:scale(1.08) rotate(-4deg)}.site-footer .brand-mark{width:40px;height:40px}.brand-name{display:inline}.primary-nav{display:none;gap:.15rem;align-items:center}@media(min-width:900px){.primary-nav{display:flex}}.nav-link{position:relative;display:inline-flex;align-items:center;gap:.45rem;padding:.55rem .85rem;border-radius:10px;font-size:.92rem;font-weight:500;color:var(--ink-soft);transition:color .2s ease,background .2s ease}.nav-link svg{color:var(--ink-mute);transition:color .2s ease,transform .25s ease}.nav-link:hover{color:var(--ink)}.nav-link:hover svg{color:var(--nav-c, var(--accent));transform:translateY(-1px)}.nav-link.is-active{color:var(--ink)}.nav-link.is-active svg{color:var(--nav-c, var(--accent))}.nav-link.is-active:after{content:"";position:absolute;left:.85rem;right:.85rem;bottom:-1px;height:2px;background:var(--nav-c, var(--accent));border-radius:999px 999px 0 0;animation:nav-underline-in .25s cubic-bezier(.32,.72,0,1)}@keyframes nav-underline-in{0%{transform:scaleX(0);opacity:0}to{transform:scaleX(1);opacity:1}}@media(prefers-reduced-motion:reduce){.nav-link svg,.nav-link.is-active:after{transition:none;animation:none}}@media(min-width:900px)and (max-width:1080px){.nav-label{display:none}.nav-link{padding:.55rem .65rem}.nav-link.is-active:after{left:.65rem;right:.65rem}}.menu-toggle{display:inline-flex;flex-direction:column;justify-content:center;align-items:center;gap:5px;width:44px;height:44px;border-radius:12px;background:transparent;border:1px solid var(--line);transition:background .2s ease,border-color .2s ease}.menu-toggle:hover{background:var(--bg-soft);border-color:var(--ink)}.menu-toggle span{display:block;width:18px;height:2px;background:var(--ink);border-radius:999px}@media(min-width:900px){.menu-toggle{display:none}}.mobile-drawer-backdrop{position:fixed;top:0;right:0;bottom:0;left:0;background:#1a1d2e80;opacity:0;pointer-events:none;transition:opacity .25s ease;z-index:60}.mobile-drawer-backdrop.is-open{opacity:1;pointer-events:auto}.mobile-drawer{position:fixed;top:0;right:0;bottom:0;width:min(86vw,340px);background:var(--bg);box-shadow:var(--shadow-lg);transform:translate(100%);transition:transform .3s cubic-bezier(.32,.72,0,1);z-index:70;display:flex;flex-direction:column;overflow-y:auto}.mobile-drawer.is-open{transform:translate(0)}@media(min-width:900px){.mobile-drawer,.mobile-drawer-backdrop{display:none}}.mobile-drawer-head{display:flex;align-items:center;justify-content:space-between;padding:1.1rem 1.25rem;border-bottom:1px solid var(--line)}.mobile-drawer-brand{display:inline-flex;align-items:center;gap:.6rem}.mobile-drawer-logo{width:32px;height:32px;object-fit:contain;display:block}.mobile-drawer-title{font-family:var(--font-display);font-weight:700;font-size:1.05rem;font-variation-settings:"opsz" 30,"SOFT" 50;letter-spacing:-.01em}.mobile-drawer-close{width:36px;height:36px;border-radius:10px;background:transparent;color:var(--ink-soft);font-size:1.6rem;line-height:1;transition:background .2s ease,color .2s ease}.mobile-drawer-close:hover{background:var(--bg-soft);color:var(--ink)}.mobile-drawer-nav{display:flex;flex-direction:column;padding:.75rem;gap:.25rem}.mobile-nav-link{display:flex;align-items:center;gap:.85rem;padding:.75rem .85rem;border-radius:14px;color:var(--ink);transition:background .2s ease}.mobile-nav-link:hover{background:var(--bg-soft)}.mobile-nav-link.is-active{background:var(--nav-c-soft)}.mobile-nav-link.is-active .mobile-nav-label{color:var(--nav-c)}.mobile-nav-icon{width:44px;height:44px;flex-shrink:0;border-radius:12px;background:var(--nav-c-soft);display:inline-flex;align-items:center;justify-content:center;font-size:1.4rem}.mobile-nav-text{display:flex;flex-direction:column;line-height:1.25}.mobile-nav-label{font-weight:600;font-size:1rem}.mobile-nav-tagline{font-size:.82rem;color:var(--ink-soft);font-style:italic;margin-top:2px}.site-footer{background:var(--ink);color:#fffc;margin-top:6rem;padding-top:4rem;padding-bottom:2rem}.footer-inner{display:grid;grid-template-columns:1fr;gap:3rem;padding-bottom:3rem;border-bottom:1px solid rgba(255,255,255,.1)}@media(min-width:768px){.footer-inner{grid-template-columns:1fr 2fr}}.site-footer .brand{color:#fff}.footer-tagline{margin-top:1rem;max-width:320px;font-size:.92rem;line-height:1.6;color:#ffffffb3}.footer-links{display:grid;grid-template-columns:1fr 1fr;gap:2rem}.footer-links h4{font-family:var(--font-body);font-size:.85rem;font-weight:700;text-transform:uppercase;letter-spacing:.05em;color:#fff;margin-bottom:1rem}.footer-links a{display:block;padding:.3rem 0;font-size:.92rem;color:#ffffffb3;transition:color .2s ease}.footer-links a:hover{color:var(--accent)}.footer-bottom{padding-top:2rem;font-size:.85rem;color:#ffffff80;text-align:center}:root{--font-display: "Fraunces", Georgia, serif;--font-body: "DM Sans", system-ui, sans-serif;--font-mono: "JetBrains Mono", monospace;--bg: #faf6ef;--bg-soft: #f3ece0;--bg-card: #ffffff;--ink: #1a1d2e;--ink-soft: #5a5f72;--ink-mute: #8d92a3;--line: #e6dfd1;--accent: #ff5b2c;--accent-soft: #ffe1d3;--c-astronomi: #4338ca;--c-astronomi-soft: #e0e7ff;--c-biyoloji: #059669;--c-biyoloji-soft: #d1fae5;--c-kimya: #db2777;--c-kimya-soft: #fce7f3;--c-fizik: #0891b2;--c-fizik-soft: #cffafe;--c-matematik: #ca8a04;--c-matematik-soft: #fef3c7;--t-3d: #4338ca;--t-animation: #db2777;--t-infographic: #059669;--t-interactive: #ff5b2c;--t-visualization: #0891b2;--radius-sm: 8px;--radius: 16px;--radius-lg: 24px;--radius-xl: 32px;--shadow-sm: 0 1px 2px rgba(26, 29, 46, .06);--shadow: 0 4px 16px rgba(26, 29, 46, .08);--shadow-lg: 0 12px 40px rgba(26, 29, 46, .12);--max-w: 1200px}*,*:before,*:after{box-sizing:border-box}*{margin:0;padding:0}html{scroll-behavior:smooth}body{font-family:var(--font-body);background:var(--bg);color:var(--ink);line-height:1.6;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale;text-rendering:optimizeLegibility}h1,h2,h3,h4,h5,h6{font-family:var(--font-display);font-weight:700;line-height:1.15;letter-spacing:-.02em}h1,h2{font-variation-settings:"opsz" 144,"SOFT" 100}h3,h4,h5,h6{font-variation-settings:"opsz" 30,"SOFT" 50;letter-spacing:-.01em}h1{font-size:clamp(2.2rem,5vw,4rem)}h2{font-size:clamp(1.6rem,3.5vw,2.6rem)}h3{font-size:clamp(1.2rem,2.5vw,1.6rem)}a{color:inherit;text-decoration:none}button{font-family:inherit;cursor:pointer;border:none;background:none}img,svg{display:block;max-width:100%}.container{width:100%;max-width:var(--max-w);margin:0 auto;padding:0 1.5rem}.btn{display:inline-flex;align-items:center;gap:.5rem;padding:.75rem 1.5rem;border-radius:999px;font-weight:500;font-size:.95rem;transition:transform .2s ease,background .2s ease}.btn:hover{transform:translateY(-1px)}.btn-primary{background:var(--ink);color:var(--bg)}.btn-primary:hover{background:var(--accent)}.btn-ghost{background:transparent;color:var(--ink);border:1.5px solid var(--line)}.btn-ghost:hover{border-color:var(--ink)}.badge{display:inline-flex;align-items:center;gap:.35rem;padding:.3rem .7rem;border-radius:999px;font-size:.78rem;font-weight:500;background:var(--bg-soft);color:var(--ink-soft)}@keyframes fade-up{0%{opacity:0;transform:translateY(20px)}to{opacity:1;transform:translateY(0)}}.fade-up{animation:fade-up .6s ease-out backwards}@keyframes twinkle{0%,to{opacity:.3}50%{opacity:1}}.star{position:absolute;width:2px;height:2px;background:#fff;border-radius:50%;animation:twinkle 3s infinite}