/* What's New Central - Unified Modern Design */

:root {
  /* Core colors - set dynamically by theme.js */
  --bg: #0d1117;
  --surface: #161b22;
  --surface-raised: #1c2128;
  --surfaceRaised: #1c2128;
  --border: rgba(48, 54, 61, 0.8);
  --text: #e6edf3;
  --text-muted: #7d8590;
  --textMuted: #7d8590;
  --muted: #7d8590;
  
  /* Brand colors */
  --brand: #58a6ff;
  --primary: #58a6ff;
  --brandAlt: #3fb950;
  --purple: #a371f7;
  --orange: #f97316;
  --pink: #ec4899;
  
  /* Gradient - adapts to theme */
  --gradient-primary: linear-gradient(135deg, var(--brand) 0%, var(--purple) 100%);
  
  /* Other */
  --cover: #0d1117;
  --headerBg: rgba(13,17,23,.97);
  --font: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'Roboto', 'Helvetica Neue', sans-serif;
  --radius: 12px;
  --radius-sm: 8px;
  --space: 1rem;
  
  /* Shadows - dynamic per theme */
  --shadow-sm: 0 2px 8px rgba(0,0,0,0.3);
  --shadowSm: 0 2px 8px rgba(0,0,0,0.3);
  --shadow-md: 0 8px 24px rgba(0,0,0,0.4);
  --shadowMd: 0 8px 24px rgba(0,0,0,0.4);
  --shadow-lg: 0 16px 48px rgba(0,0,0,0.5);
  --shadowLg: 0 16px 48px rgba(0,0,0,0.5);
}

*{box-sizing:border-box}
html,body{margin:0;padding:0;background:var(--bg);color:var(--text);font:16px/1.6 var(--font);-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale}
a{color:var(--brand);text-decoration:none;transition:color .2s ease}
a:hover{color:#79b8ff}
img{max-width:100%;display:block}
.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}

/* Accessibility */
.skip-link{position:absolute;top:-40px;left:0;background:var(--brand);color:white;padding:.5rem 1rem;text-decoration:none;font-weight:600;z-index:9999;border-radius:0 0 var(--radius-sm) 0}
.skip-link:focus{top:0}
*:focus-visible{outline:2px solid var(--brand);outline-offset:2px;border-radius:2px}
button:focus-visible,a:focus-visible,.chip:focus-visible{outline:2px solid var(--brand);outline-offset:2px}
[role="button"]:focus-visible{outline:2px solid var(--brand);outline-offset:2px}
.wrap{max-width:1100px;margin:0 auto;padding:0 1.5rem}
.section{padding:2.5rem 0}
.section-title{font-size:1.75rem;margin:0 0 .5rem;font-weight:700;letter-spacing:-0.5px}
.section-title.center{text-align:center;font-size:2.4rem;margin-bottom:1rem}
.section-subtitle{text-align:center;color:var(--muted);max-width:600px;margin:0 auto 3rem;font-size:1.1rem;line-height:1.7}
.body{max-width:70ch}
.muted{color:var(--muted)}
.error{color:#f85149}

/* Header */
.site-header{border-bottom:1px solid var(--border);position:sticky;top:0;background:var(--headerBg);backdrop-filter:saturate(180%) blur(12px);z-index:100;box-shadow:0 1px 0 var(--border)}
.header-bar{display:flex;align-items:center;justify-content:space-between;height:64px;padding:0 1.5rem}
.logo{display:flex;align-items:center;gap:.75rem;font-weight:700;font-size:1.1rem;letter-spacing:-0.3px}
.logo-mark{background:linear-gradient(135deg,var(--brand),var(--brandAlt));color:var(--bg);font-weight:800;border-radius:8px;padding:.35rem .65rem;font-size:.9rem}
.logo-text{color:var(--text);font-weight:600}
.nav{display:flex;gap:1.5rem}
.nav-link{color:var(--muted);font-weight:500;font-size:.95rem;transition:color .2s ease;padding:.5rem 0;position:relative}
.nav-link::after{content:'';position:absolute;bottom:0;left:0;width:0;height:2px;background:var(--brand);border-radius:1px;transition:width .2s ease}
.nav-link:hover::after,.nav-link[aria-current="page"]::after{width:100%}
.nav-link:hover,.nav-link[aria-current="page"]{color:var(--text)}

/* Hero */
.hero{padding:6rem 0 5rem;background:linear-gradient(180deg, color-mix(in srgb, var(--brand) 8%, transparent) 0%, color-mix(in srgb, var(--purple) 4%, transparent) 50%, transparent 100%);position:relative;overflow:hidden}
.hero-bg-shapes{position:absolute;inset:0;overflow:hidden;pointer-events:none}
.shape{position:absolute;border-radius:50%;opacity:.08;filter:blur(100px)}
.shape-1{width:600px;height:600px;background:var(--brand);top:-200px;right:0%;animation:float 25s ease-in-out infinite}
.shape-2{width:500px;height:500px;background:var(--purple);bottom:-150px;left:-5%;animation:float 20s ease-in-out infinite reverse}
.shape-3{width:400px;height:400px;background:var(--brandAlt);top:30%;left:40%;animation:float 22s ease-in-out infinite}
@keyframes float{0%,100%{transform:translateY(0)}50%{transform:translateY(-40px)}}
.hero-content{position:relative;z-index:1;text-align:center}
.hero-badge{display:inline-block;background:color-mix(in srgb, var(--brand) 15%, transparent);border:1px solid color-mix(in srgb, var(--brand) 30%, transparent);color:var(--brand);padding:.5rem 1.1rem;border-radius:999px;font-size:.875rem;font-weight:600;margin-bottom:1.5rem}
.hero-title{font-size:3.5rem;margin:.2rem auto 1.2rem;max-width:800px;line-height:1.1;font-weight:800;letter-spacing:-1.5px;color:var(--text);word-wrap:break-word;overflow-wrap:break-word}
.hero-lede{color:var(--muted);max-width:600px;margin:0 auto 2.5rem;font-size:1.15rem;line-height:1.7}
.hero-actions{display:flex;gap:1rem;justify-content:center;flex-wrap:wrap}
.cta{display:inline-flex;align-items:center;gap:.5rem;padding:.8rem 1.3rem;border-radius:var(--radius-sm);font-weight:600;font-size:.95rem;transition:all .2s ease;border:none;cursor:pointer}
.cta-primary{background:var(--gradient-primary);color:white;box-shadow:0 4px 14px color-mix(in srgb, var(--brand) 30%, transparent)}
.cta-primary:hover{box-shadow:0 6px 20px color-mix(in srgb, var(--brand) 40%, transparent);transform:translateY(-2px);color:white}
.cta-secondary{background:var(--surface);color:var(--text);border:1px solid var(--border)}
.cta-secondary:hover{background:var(--surface-raised);border-color:color-mix(in srgb, var(--brand) 30%, transparent);transform:translateY(-1px)}

/* Stats Section */
.stats-section{background:var(--surface);border-top:1px solid var(--border);border-bottom:1px solid var(--border);padding:2.5rem 0}
.stats-content{display:grid;grid-template-columns:repeat(auto-fit,minmax(200px,1fr));gap:1.5rem}
.stat-card{text-align:center;padding:1.75rem 1rem;border-radius:var(--radius);background:var(--surface);border:1px solid var(--border);transition:all .2s ease}
.stat-card:hover{border-color:color-mix(in srgb, var(--brand) 30%, transparent);transform:translateY(-3px);box-shadow:var(--shadowSm)}
.stat-icon{font-size:2rem;margin-bottom:.5rem}
.stat-number{font-size:2.5rem;font-weight:800;color:var(--brand);line-height:1}
.stat-text{font-size:1.4rem;font-weight:700;color:var(--brand)}
.stat-suffix{font-size:1.5rem;font-weight:800;color:var(--brand)}
.stat-label{font-weight:600;margin:.5rem 0 .3rem;color:var(--text);font-size:.95rem}
.stat-desc{color:var(--muted);font-size:.875rem}
.animate-on-scroll{opacity:0;transform:translateY(20px);transition:all .5s ease}
.animate-on-scroll.visible{opacity:1;transform:translateY(0)}

/* Features Section */
.features-section{padding:5rem 0;background:linear-gradient(180deg, transparent 0%, color-mix(in srgb, var(--brand) 2%, transparent) 50%, transparent 100%)}
.features-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(280px,1fr));gap:1.5rem;margin-top:2.5rem}
.feature-card{padding:2rem;border-radius:var(--radius);background:var(--surface);border:1px solid var(--border);transition:all .2s ease}
.feature-card:hover{border-color:color-mix(in srgb, var(--brand) 30%, transparent);transform:translateY(-4px);box-shadow:var(--shadowMd)}
.feature-icon{width:56px;height:56px;border-radius:var(--radius-sm);display:flex;align-items:center;justify-content:center;margin-bottom:1rem}
.icon-purple{background:color-mix(in srgb, var(--purple) 15%, transparent);color:var(--purple)}
.icon-blue{background:color-mix(in srgb, var(--brand) 15%, transparent);color:var(--brand)}
.icon-green{background:color-mix(in srgb, var(--brandAlt) 15%, transparent);color:var(--brandAlt)}
.icon-orange{background:color-mix(in srgb, var(--orange) 15%, transparent);color:var(--orange)}
.icon-teal{background:color-mix(in srgb, #2dd4bf 15%, transparent);color:#2dd4bf}
.icon-pink{background:color-mix(in srgb, var(--pink) 15%, transparent);color:var(--pink)}
.feature-title{font-size:1.15rem;margin:0 0 .5rem;font-weight:700}
.feature-desc{color:var(--muted);line-height:1.6;margin:0;font-size:.95rem}

/* Filters */
.filters{margin-top:1rem}
.filter-row{display:flex;gap:.5rem;flex-wrap:wrap;margin-top:.5rem}
.input{background:var(--surface);border:1px solid var(--border);color:var(--text);padding:.65rem .9rem;border-radius:var(--radius-sm);min-width:280px;transition:all .2s ease;font-size:.95rem}
.input:focus{outline:none;border-color:var(--brand);box-shadow:0 0 0 3px color-mix(in srgb, var(--brand) 15%, transparent)}
.input::placeholder{color:var(--muted)}
.chipset{display:flex;gap:.4rem;flex-wrap:wrap;align-items:center}
.chip{border:1px solid var(--border);border-radius:999px;padding:.45rem .9rem;background:var(--surface);color:var(--text);cursor:pointer;font-weight:500;transition:all .2s ease;font-size:.9rem}
.chip:hover{border-color:color-mix(in srgb, var(--brand) 40%, transparent);background:var(--surface-raised)}
.chip-active{background:var(--brand);color:var(--bg);border-color:transparent}
.chip-sep{color:var(--muted);margin-left:.5rem;margin-right:.2rem}

/* Grid & Cards */
.grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(280px,1fr));gap:1.25rem}
.card{border:1px solid var(--border);border-radius:var(--radius);overflow:hidden;background:var(--surface);transition:all .2s ease}
.card:hover{border-color:color-mix(in srgb, var(--brand) 30%, transparent);transform:translateY(-4px);box-shadow:var(--shadowMd)}
.card-cover{display:block;aspect-ratio:16/9;background:var(--cover);background-size:cover;background-position:center;border-bottom:1px solid var(--border)}
.card-cover--empty{background:var(--surface-raised);display:flex;align-items:center;justify-content:center}
.card-cover--empty img{width:50%;max-width:100px;height:auto;opacity:.8}
.card-cover--copilot{background:linear-gradient(135deg, color-mix(in srgb, var(--purple) 10%, transparent), color-mix(in srgb, var(--brand) 10%, transparent))}
.card-cover--teams{background:linear-gradient(135deg, color-mix(in srgb, #8b8eda 10%, transparent), color-mix(in srgb, #6060a0 10%, transparent))}
.card-body{padding:1rem}
.card-title{margin:.1rem 0 .4rem;font-size:1rem;font-weight:600}
.meta{color:var(--muted);margin:.2rem 0 .4rem;font-size:.9rem}
.tags{color:var(--muted);font-size:.875rem}
.card-actions{display:flex;gap:.5rem;padding:0 1rem 1rem}
.btn{padding:.5rem .75rem;border-radius:var(--radius-sm);border:1px solid var(--border);background:var(--surface);color:var(--text);font-weight:500;font-size:.9rem;cursor:pointer;transition:all .2s ease}
.btn:hover{background:var(--surface-raised);border-color:color-mix(in srgb, var(--brand) 30%, transparent)}
.btn-primary{background:var(--gradient-primary);border-color:transparent;color:white;font-weight:600}
.btn-primary:hover{transform:translateY(-1px);box-shadow:0 4px 12px color-mix(in srgb, var(--brand) 40%, transparent)}
.btn-ghost{background:transparent;border-color:transparent;color:var(--brand)}
.btn-ghost:hover{background:color-mix(in srgb, var(--brand) 10%, transparent)}

/* CTA Section */
.cta-section{padding:5rem 0;background:var(--surface);border-top:1px solid var(--border);border-bottom:1px solid var(--border)}
.cta-container{display:grid;grid-template-columns:1fr 1fr;gap:4rem;align-items:center}
.cta-content{text-align:left}
.cta-heading{font-size:2.5rem;margin:0 0 1rem;color:var(--brand);letter-spacing:-0.5px;font-weight:800}
.cta-text{font-size:1.1rem;color:var(--muted);margin-bottom:2rem;max-width:480px;line-height:1.7}
.cta-large{font-size:1rem;padding:1rem 1.75rem}
.cta-visual{position:relative;height:280px}
.visual-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:.75rem}
.visual-item{aspect-ratio:1;border-radius:var(--radius-sm);display:flex;align-items:center;justify-content:center;font-size:2rem;background:var(--surface-raised);border:1px solid var(--border);transition:all .3s ease}
.visual-item:hover{transform:scale(1.05);border-color:color-mix(in srgb, var(--brand) 40%, transparent)}

/* Latest Editions */
.latest-editions-section{padding:5rem 0;background:var(--bg)}
.editions-container{display:grid;gap:3rem;margin-top:2.5rem}
.edition-category{border:1px solid var(--border);border-radius:var(--radius);padding:2.5rem;background:var(--surface)}
.category-header{margin-bottom:1.5rem}
.category-icon{font-size:2rem}
.category-title{font-size:1.5rem;margin:0;font-weight:700}
.featured-presentation{margin-bottom:2rem}
.presentation-card{border:1px solid var(--border);border-radius:var(--radius);overflow:hidden;background:var(--surface-raised);transition:all .2s ease}
.presentation-card:hover{border-color:color-mix(in srgb, var(--brand) 30%, transparent);box-shadow:var(--shadowMd);transform:translateY(-4px)}
.presentation-card.featured{display:grid;grid-template-columns:320px 1fr;gap:0;background:var(--surface)}
.presentation-card.featured:hover{background:var(--surface)}
.presentation-badge{position:absolute;top:.75rem;left:.75rem;background:var(--brand);color:var(--bg);padding:.35rem .7rem;border-radius:6px;font-size:.8rem;font-weight:700;z-index:2}
.presentation-cover{position:relative;background:var(--bg);border-right:1px solid var(--border);overflow:hidden}
.presentation-cover .badge-pill{position:absolute;top:.75rem;left:.75rem;z-index:2}
.presentation-cover-placeholder{display:flex;align-items:center;justify-content:center;height:100%;min-height:220px;color:var(--muted)}
.presentation-cover-placeholder img{transition:transform .3s ease}
.presentation-content{padding:1.75rem;background:var(--surface)}
.presentation-title{font-size:1.25rem;margin:0 0 .75rem;font-weight:700}
.presentation-title a{color:inherit;text-decoration:none}
.presentation-title a:hover{color:var(--brand)}
.presentation-meta{display:flex;justify-content:space-between;align-items:center;margin-bottom:.75rem;flex-wrap:wrap;gap:.5rem}
.presentation-date{color:var(--textMuted);font-size:.9rem}
.presentation-desc{color:var(--text);line-height:1.6;margin-bottom:1.25rem;font-size:.95rem;font-weight:500}
.presentation-actions{display:flex;gap:.75rem;flex-wrap:wrap}
.btn-download{display:inline-flex;align-items:center;gap:.5rem;padding:.75rem 1.25rem;background:var(--gradient-primary);color:white;border-radius:var(--radius-sm);font-weight:600;text-decoration:none;transition:all .2s ease;font-size:.95rem;border:none}
.btn-download:hover{transform:translateY(-2px);box-shadow:0 4px 12px color-mix(in srgb, var(--brand) 40%, transparent);color:white}
.btn-share{display:inline-flex;align-items:center;gap:.5rem;padding:.65rem 1.1rem;background:transparent;color:var(--text);border:1px solid var(--border);border-radius:var(--radius-sm);font-weight:600;cursor:pointer;transition:all .2s ease;font-size:.95rem}
.btn-share:hover{background:var(--surface);border-color:var(--primary);color:var(--primary)}

/* Previous Editions */
.previous-editions{margin-top:2rem}
.previous-header{display:flex;justify-content:space-between;align-items:center;margin-bottom:1rem}
.previous-title{font-size:1.1rem;margin:0;font-weight:600}
.previous-list{display:flex;flex-direction:column;gap:.5rem}
.previous-item{display:flex;align-items:center;gap:1rem;padding:.75rem 1rem;background:var(--surface);border:1px solid var(--border);border-radius:var(--radius-sm);text-decoration:none;transition:all .2s ease}
.previous-item:hover{border-color:color-mix(in srgb, var(--brand) 30%, transparent);background:color-mix(in srgb, var(--surface-raised) 50%, var(--surface) 50%);transform:translateX(4px)}
.previous-item-icon{width:28px;height:28px;object-fit:contain;flex-shrink:0}
.previous-item-title{flex:1;font-weight:600;color:var(--text);font-size:.95rem;line-height:1.3;word-break:break-word}
.previous-item:hover .previous-item-title{color:var(--text)}
.previous-item-meta{font-size:.85rem;color:var(--muted);flex-shrink:0}
.previous-item-action{font-size:.85rem;font-weight:600;color:var(--brand);padding:.25rem .75rem;background:color-mix(in srgb, var(--brand) 10%, transparent);border-radius:4px;transition:all .2s ease;flex-shrink:0}
.previous-item:hover .previous-item-action{background:var(--gradient-primary);color:white;text-shadow:none}
.browse-all-link{display:inline-flex;align-items:center;gap:.4rem;color:var(--brand);text-decoration:none;font-weight:600;font-size:.9rem;transition:all .2s ease}
.browse-all-link:hover{color:#79b8ff}
/* Legacy mini card support */
.previous-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(170px,1fr));gap:.75rem;margin-bottom:1.25rem}
.presentation-card-mini{border:1px solid var(--border);border-radius:var(--radius-sm);padding:.875rem;background:var(--surface);transition:all .2s ease}
.presentation-card-mini:hover{border-color:color-mix(in srgb, var(--brand) 30%, transparent);transform:translateY(-3px);box-shadow:var(--shadowSm)}
.mini-cover{aspect-ratio:16/9;background:var(--bg);border-radius:6px;margin-bottom:.65rem;overflow:hidden}
.mini-content{margin-bottom:.65rem}
.mini-content h5{margin:0 0 .25rem;font-size:.9rem;font-weight:600}
.mini-download{display:inline-block;font-size:.85rem;color:var(--brand);text-decoration:none;font-weight:600}
.mini-download:hover{text-decoration:underline}

/* Presentation Detail Page */
.presentation-detail-page{padding:3rem 0}
.loading-state,.error-state{text-align:center;padding:4rem 2rem}
.detail-header{margin-bottom:2.5rem}
.back-link{color:var(--brand);text-decoration:none;display:inline-flex;align-items:center;gap:.4rem;margin-bottom:1rem;font-weight:500;font-size:.95rem;transition:all .2s ease}
.back-link:hover{color:#79b8ff;transform:translateX(-3px)}
.detail-title{font-size:2.5rem;margin:0 0 1rem;font-weight:800;letter-spacing:-0.5px}
.detail-meta{display:flex;gap:1.25rem;flex-wrap:wrap;color:var(--muted);font-size:.95rem}
.detail-content{display:grid;grid-template-columns:1fr 1.5fr;gap:2.5rem;margin-bottom:3rem}
.detail-cover{position:sticky;top:80px}
.detail-cover-img{aspect-ratio:16/9;background:var(--surface);border-radius:var(--radius);overflow:hidden;margin-bottom:.75rem;border:1px solid var(--border)}
.detail-cover-img img{width:100%;height:100%;object-fit:cover}
.detail-tags{display:flex;gap:.4rem;flex-wrap:wrap;margin-bottom:1.5rem}
.tag{background:var(--surface);border:1px solid var(--border);padding:.4rem .8rem;border-radius:6px;font-size:.875rem;transition:all .2s ease}
.tag:hover{border-color:color-mix(in srgb, var(--brand) 30%, transparent)}
.detail-actions{display:flex;gap:.75rem;margin-bottom:1.5rem;flex-wrap:wrap}
.btn-large{padding:.9rem 1.4rem;font-size:1rem}
.detail-description h3{margin:0 0 .75rem;font-size:1.15rem;font-weight:700}
.detail-description p{color:var(--muted);line-height:1.7;font-size:.95rem}
.resources-section{margin-top:2rem;padding-top:1.5rem;border-top:1px solid var(--border)}
.resources-section h3{margin:0 0 1rem;font-size:1.1rem;font-weight:700}
.resources-list{display:flex;flex-direction:column;gap:.5rem}
.resource-link{display:inline-flex;align-items:center;gap:.5rem;color:var(--brand);font-weight:500;padding:.5rem 0;transition:all .2s ease}
.resource-link:hover{color:#79b8ff;transform:translateX(3px)}
.related-section{margin-top:3rem;padding-top:2.5rem;border-top:1px solid var(--border)}
.related-section h2{margin:0 0 1.5rem;font-size:1.5rem;font-weight:700}

/* Footer */
.site-footer{border-top:1px solid var(--border);padding:2rem 0;color:var(--muted);background:var(--surface)}
.footer-bar{display:flex;align-items:center;justify-content:space-between;font-size:.9rem}
.footer-links{display:flex;align-items:center;gap:1rem;flex-wrap:wrap;font-size:.9rem}
.footer-links a{color:var(--muted);text-decoration:none}
.footer-links a:hover{color:var(--text);text-decoration:underline}

/* Legal Pages */
.legal-page{padding:3rem 0 4rem}
.legal-grid{display:grid;gap:1.5rem;max-width:900px}
.legal-card{background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);padding:1.5rem}
.legal-card h2{margin:0 0 .5rem;font-size:1.2rem}
.legal-card p{margin:0 0 .75rem;color:var(--muted)}
.legal-list{margin:.25rem 0 .75rem 1.2rem;color:var(--muted);padding:0}
.legal-list li{margin-bottom:.35rem}
.legal-meta{color:var(--muted);margin:0 0 1rem;font-size:.95rem}

/* Badge Styles */
.badge-pill{display:inline-flex;align-items:center;gap:.35rem;padding:.4rem .75rem;border-radius:20px;font-size:.8rem;font-weight:500}
.badge-category{background:color-mix(in srgb, var(--brand) 15%, transparent);color:var(--brand);border:1px solid color-mix(in srgb, var(--brand) 30%, transparent)}
.badge-edition{background:color-mix(in srgb, var(--purple) 20%, var(--surface));color:var(--purple);border:1px solid color-mix(in srgb, var(--purple) 50%, transparent);font-weight:600}
.badge-copilot{background:color-mix(in srgb, var(--brand) 15%, transparent);color:var(--brand);border:1px solid color-mix(in srgb, var(--brand) 30%, transparent)}
.badge-teams{background:color-mix(in srgb, #8b8eda 15%, transparent);color:#8b8eda;border:1px solid color-mix(in srgb, #8b8eda 30%, transparent)}

/* Mobile Menu Toggle */
.menu-toggle{display:none;background:none;border:none;cursor:pointer;padding:.5rem;border-radius:var(--radius-sm);color:var(--text)}
.menu-toggle:hover{background:var(--surface)}
.menu-toggle svg{display:block}
.menu-toggle .menu-close{display:none}
.mobile-menu-close{display:none}
.mobile-overlay{display:none}

/* Responsive */
@media (max-width:900px){
  .hero-title{font-size:2.2rem}
  .hero-lede{font-size:1rem}
  .features-grid{grid-template-columns:1fr}
  .cta-container{grid-template-columns:1fr;gap:2.5rem}
  .cta-visual{height:220px}
  .presentation-card.featured{grid-template-columns:1fr}
  .presentation-cover{border-right:none;border-bottom:1px solid var(--border)}
  .detail-content{grid-template-columns:1fr}
  .detail-cover{position:relative;top:0}
  .detail-title{font-size:1.8rem}
  .section-title{font-size:1.6rem}
}
@media (max-width:700px){
  /* Mobile hamburger menu */
  .menu-toggle{display:flex;align-items:center;justify-content:center;order:1;margin-left:auto}
  .nav{position:fixed;top:0;right:-280px;width:280px;height:100vh;background:var(--surface);flex-direction:column;padding:5rem 1.5rem 2rem;gap:0;border-left:1px solid var(--border);box-shadow:-4px 0 20px rgba(0,0,0,0.3);transition:right .3s ease;z-index:200}
  .nav.open{right:0}
  .nav-link{font-size:1rem;padding:.875rem 0;border-bottom:1px solid var(--border);width:100%}
  .nav-link::after{display:none}
  .theme-toggle{margin-top:auto;align-self:flex-start;font-size:1.5rem}
  .mobile-menu-close{position:absolute;top:1rem;right:1rem;background:none;border:none;color:var(--text);cursor:pointer;padding:.5rem;border-radius:var(--radius-sm)}
  .mobile-menu-close:hover{background:var(--surface-raised)}
  .mobile-overlay{position:fixed;inset:0;background:rgba(0,0,0,0.5);z-index:150;opacity:0;pointer-events:none;transition:opacity .3s ease}
  .mobile-overlay.active{opacity:1;pointer-events:auto}
  
  /* Header improvements */
  .header-bar{padding:0 1rem;min-height:56px;height:auto;gap:.75rem}
  .logo{font-size:1rem;gap:.5rem}
  .logo-mark{padding:.3rem .55rem;font-size:.75rem}
  .logo-text{font-size:.9rem}
  
  /* Other mobile styles */
  .stats-content{grid-template-columns:1fr;gap:1rem}
  .hero-title{font-size:1.5rem;margin:.5rem auto 1rem}
  .hero-lede{font-size:0.95rem;margin:0 auto 1.5rem}
  .hero-actions{flex-direction:column;gap:.5rem}
  .cta{width:100%;justify-content:center;padding:.65rem 1rem;font-size:.9rem}
  .section-title{font-size:1.4rem}
  .section-title.center{font-size:1.4rem;margin-bottom:.75rem}
  .section-subtitle{font-size:0.95rem;margin:0 auto 1.5rem}
  .previous-grid{grid-template-columns:1fr}
  .previous-item{padding:.6rem .75rem}
  .previous-item-title{font-size:.875rem}
  .previous-header{flex-direction:column;align-items:flex-start;gap:.5rem}
  .detail-actions{flex-direction:column}
  .detail-title{font-size:1.4rem}
  .btn-large{width:100%}
  .wrap{padding:0 1rem}
  .legal-page{padding:2rem 0 3rem}
  .legal-grid{gap:1rem}
  .legal-card{padding:1rem}
  .legal-card h2{font-size:1.1rem;margin-bottom:.35rem}
  .legal-list{margin:.15rem 0 .5rem 1rem;font-size:.9rem}
}
@media (prefers-reduced-motion:reduce){
  *{animation:none!important;transition:none!important}
}

/* Theme Toggle */
.theme-toggle{background:none;border:none;font-size:1.3rem;cursor:pointer;padding:.4rem;border-radius:var(--radius-sm);transition:background .2s ease;line-height:1;display:flex;align-items:center;justify-content:center}
.theme-toggle:hover{background:var(--surface)}
.theme-toggle:focus{outline:2px solid var(--brand);outline-offset:2px}

/* Loading States */
.loading-spinner{display:inline-block;width:40px;height:40px;border:4px solid var(--border);border-top-color:var(--brand);border-radius:50%;animation:spin 1s linear infinite;margin:2rem auto}
@keyframes spin{to{transform:rotate(360deg)}}
.skeleton{background:linear-gradient(90deg,var(--surface) 0%,var(--surface-raised) 50%,var(--surface) 100%);background-size:200% 100%;animation:skeleton-loading 1.5s ease-in-out infinite;border-radius:var(--radius-sm)}
@keyframes skeleton-loading{0%{background-position:200% 0}100%{background-position:-200% 0}}
.skeleton-card{height:300px;margin-bottom:1rem}
.skeleton-text{height:1rem;margin-bottom:.5rem;width:100%}
.skeleton-text.short{width:60%}

/* Toast Notifications */
.toast-container{position:fixed;bottom:1.5rem;right:1.5rem;z-index:10000;display:flex;flex-direction:column;gap:0.75rem;pointer-events:none}
.toast{display:flex;align-items:center;gap:0.75rem;padding:0.875rem 1.25rem;background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);box-shadow:var(--shadow-md);pointer-events:auto;animation:toast-in 0.3s ease;max-width:400px;min-width:280px}
.toast.toast-out{animation:toast-out 0.25s ease forwards}
.toast-icon{flex-shrink:0;width:20px;height:20px}
.toast-content{flex:1;font-size:0.9rem;line-height:1.4}
.toast-close{flex-shrink:0;background:none;border:none;color:var(--muted);cursor:pointer;padding:0.25rem;border-radius:4px;display:flex;align-items:center;justify-content:center}
.toast-close:hover{background:var(--border);color:var(--text)}
.toast-success{border-left:3px solid #22c55e}
.toast-success .toast-icon{color:#22c55e}
.toast-error{border-left:3px solid #ef4444}
.toast-error .toast-icon{color:#ef4444}
.toast-warning{border-left:3px solid #f59e0b}
.toast-warning .toast-icon{color:#f59e0b}
.toast-info{border-left:3px solid var(--brand)}
.toast-info .toast-icon{color:var(--brand)}
@keyframes toast-in{from{opacity:0;transform:translateX(100%)}to{opacity:1;transform:translateX(0)}}
@keyframes toast-out{to{opacity:0;transform:translateX(100%)}}
@media(max-width:480px){.toast-container{left:1rem;right:1rem;bottom:1rem}.toast{max-width:none}}

/* Roadmap Section */
.roadmap-section{padding:4rem 0;background:var(--surface);border-top:1px solid var(--border);border-bottom:1px solid var(--border)}
.roadmap-section .section-header{text-align:center;margin-bottom:2rem}
.roadmap-section .section-subtitle{color:var(--muted);margin-top:0.5rem}
.roadmap-tabs{display:flex;justify-content:center;gap:0.5rem;margin-bottom:2rem}
.roadmap-tab{background:transparent;border:1px solid var(--border);color:var(--muted);padding:0.6rem 1.5rem;border-radius:999px;font-size:0.9rem;font-weight:600;cursor:pointer;transition:all 0.2s ease}
.roadmap-tab:hover{border-color:var(--brand);color:var(--text)}
.roadmap-tab.active{background:var(--brand);border-color:var(--brand);color:white}
.roadmap-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(320px,1fr));gap:1.25rem}
.roadmap-loading{grid-column:1/-1;text-align:center;padding:3rem}
.roadmap-loading p{color:var(--muted);margin-top:1rem}
.roadmap-card{background:var(--surface-raised);border:1px solid var(--border);border-radius:var(--radius);padding:1.25rem;transition:all 0.2s ease;display:flex;flex-direction:column}
.roadmap-card:hover{border-color:color-mix(in srgb,var(--brand) 40%,transparent);transform:translateY(-2px);box-shadow:var(--shadow-sm)}
.roadmap-card-header{display:flex;align-items:flex-start;gap:0.75rem;margin-bottom:0.75rem}
.roadmap-card-icon{width:32px;height:32px;border-radius:8px;display:flex;align-items:center;justify-content:center;flex-shrink:0;font-size:1.2rem}
.roadmap-card-icon.copilot{background:linear-gradient(135deg,#7c3aed,#a78bfa)}
.roadmap-card-icon.teams{background:linear-gradient(135deg,#6366f1,#818cf8)}
.roadmap-card-title{font-size:0.95rem;font-weight:600;line-height:1.4;color:var(--text);flex:1}
.roadmap-card-desc{font-size:0.85rem;color:var(--muted);line-height:1.5;margin-bottom:1rem;flex:1}
.roadmap-card-meta{display:flex;align-items:center;gap:0.75rem;flex-wrap:wrap;margin-top:auto}
.roadmap-status{display:inline-flex;align-items:center;gap:0.35rem;font-size:0.75rem;font-weight:600;padding:0.25rem 0.6rem;border-radius:999px;background:var(--surface);border:1px solid var(--border)}
.roadmap-status.rolling-out{background:color-mix(in srgb,#22c55e 15%,transparent);border-color:color-mix(in srgb,#22c55e 30%,transparent);color:#22c55e}
.roadmap-status.in-development{background:color-mix(in srgb,var(--brand) 15%,transparent);border-color:color-mix(in srgb,var(--brand) 30%,transparent);color:var(--brand)}
.roadmap-status.launched{background:color-mix(in srgb,#a78bfa 15%,transparent);border-color:color-mix(in srgb,#a78bfa 30%,transparent);color:#a78bfa}
.roadmap-platforms{font-size:0.75rem;color:var(--muted)}
.roadmap-link{margin-left:auto;font-size:0.8rem;color:var(--brand);display:flex;align-items:center;gap:0.25rem}
.roadmap-link:hover{text-decoration:underline}
.roadmap-footer{text-align:center;margin-top:2rem}
.roadmap-empty{grid-column:1/-1;text-align:center;padding:3rem;color:var(--muted)}
.roadmap-empty svg{width:48px;height:48px;margin-bottom:1rem;opacity:0.5}
@media(max-width:600px){.roadmap-grid{grid-template-columns:1fr}.roadmap-tabs{flex-wrap:wrap}}