:root{
  --bg:#f5f5f0;
  --card:#ffffff;
  --text:#333333;
  --muted:#666666;
  --border:#e0e0e0;
  --accent:#0066cc;
  --menu-bg:#0066cc;
  --menu-hover:#0052a3;
  --max:1200px;
}

*{box-sizing:border-box}
html,body{margin:0;padding:0;font-family:system-ui,-apple-system,Segoe UI,Roboto,Ubuntu,'Helvetica Neue',Arial}
body{background:var(--bg);color:var(--text);line-height:1.6;overflow-x:hidden;max-width:100vw}
html{overflow-x:hidden}

a{color:var(--accent);text-decoration:none;word-break:break-word}
a:hover{text-decoration:underline}
img,video,iframe{max-width:100%;height:auto}
input,select,textarea,button{max-width:100%}

.container{max-width:var(--max);margin:0 auto;padding:12px;width:100%;overflow-x:hidden}
.container > .ad-slot:first-child{margin-top:-12px;margin-left:-12px;margin-right:-12px;width:calc(100% + 24px);border-radius:0;border-left:none;border-right:none;border-top:none}
@media(min-width:640px){
  .container{padding:16px}
  .container > .ad-slot:first-child{margin-top:-16px;margin-left:-16px;margin-right:-16px;width:calc(100% + 32px)}
}

.header{
  position:sticky;top:0;background:var(--menu-bg);z-index:1000;
  box-shadow:0 2px 4px rgba(0,0,0,.1)
}
.header .container{
  max-width:100%;padding:0
}
.main-menu{
  list-style:none;margin:0;padding:0;display:flex;align-items:stretch
}
.main-menu > li{
  position:relative;flex:0 0 auto
}
.main-menu > li > a{
  display:flex;align-items:center;gap:6px;padding:12px 20px;color:#ffffff;
  text-decoration:none;font-size:14px;font-weight:500;white-space:nowrap;
  transition:background-color .2s;border-right:1px solid rgba(255,255,255,.1)
}
.main-menu > li > a:hover,
.main-menu > li > a.active{
  background:var(--menu-hover)
}
.main-menu > li:last-child > a{border-right:none}
.main-menu > li > a svg{
  width:16px;height:16px;opacity:.9
}

.menu-toggle{
  display:none;background:var(--menu-bg);color:#fff;border:none;
  padding:12px 20px;font-size:16px;cursor:pointer;width:100%;
  text-align:left;font-weight:600
}
.menu-toggle:hover{background:var(--menu-hover)}

@media(max-width:768px){
  .menu-toggle{display:block}
  .main-menu{
    display:none;flex-direction:column;width:100%
  }
  .main-menu.active{display:flex}
  .main-menu > li > a{
    border-right:none;border-bottom:1px solid rgba(255,255,255,.1)
  }
  .main-menu > li > a svg{width:18px;height:18px}
}

.hero{padding:30px 0 20px;text-align:center}
.hero h1{font-size:32px;margin:0 0 12px;line-height:1.2;color:var(--text);font-weight:700}
.hero p{margin:0;color:var(--muted);font-size:16px}

@media(min-width:640px){
  .hero h1{font-size:40px}
  .hero p{font-size:18px}
}

.card{
  background:var(--card);border:1px solid var(--border);border-radius:4px;
  padding:20px;margin:20px 0;box-shadow:0 1px 3px rgba(0,0,0,.1)
}
.card h2{margin:0 0 12px;font-size:18px;color:var(--text);font-weight:600}

.tool-main{
  display:flex;flex-direction:column;gap:10px;align-items:flex-start
}
@media(min-width:640px){
  .tool-main{gap:12px}
}

.big{
  font-size:24px;font-weight:700;letter-spacing:.4px;
  padding:12px 16px;border-radius:4px;border:2px solid var(--border);
  background:var(--card);word-break:break-all;color:var(--text)
}
@media(min-width:640px){
  .big{font-size:32px;padding:16px 20px}
}

.btn{
  background:var(--accent);color:#ffffff;border:0;border-radius:4px;
  padding:10px 20px;font-weight:600;cursor:pointer;font-size:14px;white-space:nowrap;
  transition:background-color .2s
}
.btn:hover{background:var(--menu-hover)}
.btn:active{transform:translateY(1px)}
.btn.secondary{
  background:transparent;color:var(--accent);border:1px solid var(--accent)
}
.btn.secondary:hover{background:var(--accent);color:#ffffff}
@media(min-width:640px){
  .btn{padding:10px 14px;font-size:15px}
}

.kv{display:grid;grid-template-columns:100px 1fr;gap:6px 10px;font-size:13px}
.kv div{color:var(--muted)}
.kv b{color:var(--text);font-weight:700;word-break:break-word}
@media(min-width:640px){
  .kv{grid-template-columns:140px 1fr;gap:8px 12px;font-size:14px}
}

.ad-slot{
  border:1px dashed var(--border);
  border-radius:4px;padding:20px;text-align:center;color:var(--muted);
  background:#fafafa;font-size:13px;min-height:90px;display:flex;align-items:center;justify-content:center;
  margin:20px 0
}
.container > .ad-slot:first-child{margin-bottom:20px}

.footer{
  border-top:2px solid var(--border);margin-top:40px;padding:30px 0;color:var(--muted);
  background:var(--card)
}
.small{font-size:12px;color:var(--muted);line-height:1.4}
.grid2{display:grid;grid-template-columns:1fr;gap:10px}
@media(min-width:860px){ .grid2{grid-template-columns:1.2fr .8fr;gap:14px} }

.tools-grid{
  display:grid;grid-template-columns:repeat(auto-fit,minmax(140px,1fr));gap:12px;margin:16px 0
}
.tool-card{
  background:var(--card);border:1px solid var(--border);border-radius:4px;
  padding:20px;text-align:center;text-decoration:none;transition:all .2s;
  display:flex;flex-direction:column;align-items:center;gap:12px;
  box-shadow:0 1px 3px rgba(0,0,0,.1)
}
.tool-card:hover{
  transform:translateY(-2px);border-color:var(--accent);box-shadow:0 4px 8px rgba(0,0,0,.15)
}
.tool-icon{
  width:56px;height:56px;border-radius:8px;background:#e6f2ff;
  display:flex;align-items:center;justify-content:center;color:var(--accent)
}
.tool-icon svg{width:24px;height:24px}
.tool-card h3{
  margin:0;font-size:15px;font-weight:600;color:var(--text)
}
.tool-card .small{
  margin:0;opacity:.8
}
@media(max-width:640px){
  .tools-grid{grid-template-columns:repeat(2,1fr);gap:10px}
  .tool-card{padding:12px}
  .tool-icon{width:40px;height:40px}
  .tool-icon svg{width:20px;height:20px}
  .tool-card h3{font-size:13px}
}