@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700&display=swap');

:root{
  --primary:#FFE500;
  --bg:#000;
  --surface:#0A0A0A;
  --surface-hover:#141414;
  --text-primary:#FFF;
  --text-secondary:#999;
  --text-tertiary:#666;
  --border:#1A1A1A;
  --border-hover:#2A2A2A;
  --shadow:rgba(0,0,0,.5);
  --transition:.3s;
}

*{box-sizing:border-box;margin:0;padding:0}

body{
  font-family:Inter,sans-serif;
  background:var(--bg);
  color:var(--text-primary);
  line-height:1.6;
  overflow-x:hidden;
  font-weight:400;
}

.header{
  position:fixed;
  top:0;
  left:0;
  right:0;
  height:80px;
  background:rgba(0,0,0,.98);
  backdrop-filter:blur(20px);
  border-bottom:1px solid var(--border);
  z-index:100;
  display:flex;
  align-items:center;
  justify-content:space-between;
  padding:0 3rem;
  transition:all var(--transition);
}

.logo{
  font-size:1.5rem;
  font-weight:300;
  color:var(--primary);
  letter-spacing:.2em;
  transition:letter-spacing var(--transition);
}

.logo:hover{letter-spacing:.25em}

.header-actions{
  display:flex;
  gap:1.5rem;
  align-items:center;
}

.header-btn{
  padding:.7rem 1.5rem;
  background:transparent;
  border:1px solid var(--border);
  color:var(--text-secondary);
  border-radius:2px;
  cursor:pointer;
  font-size:.85rem;
  font-weight:400;
  letter-spacing:.05em;
  transition:all var(--transition);
  font-family:inherit;
}

.header-btn:hover{
  background:var(--surface-hover);
  border-color:var(--primary);
  color:var(--primary);
  transform:translateY(-1px);
}

.start-icon{
  width:26px;
  height:20px;
  display:none;
  flex-direction:column;
  justify-content:space-between;
  cursor:pointer;
}

.start-icon span{
  width:100%;
  height:1px;
  background:var(--text-primary);
  transition:background var(--transition);
}

.start-icon:hover span{background:var(--primary)}

.fav-icon-mobile{
  display:none;
  margin-left:1.5rem;
  font-size:1.4rem;
  cursor:pointer;
  color:var(--text-primary);
  transition:all var(--transition);
}

.fav-icon-mobile:hover{
  color:var(--primary);
  transform:scale(1.1);
}

.container{
  max-width:1400px;
  margin:0 auto;
  padding:120px 3rem 3rem;
}

.hero{
  text-align:center;
  padding:4rem 0 5rem;
  margin-bottom:4rem;
  animation:heroFadeIn 1s;
}

@keyframes heroFadeIn{
  from{opacity:0}
  to{opacity:1}
}

.hero-title{
  font-size:4rem;
  font-weight:300;
  color:var(--primary);
  margin-bottom:1rem;
  letter-spacing:.15em;
}

.hero-subtitle{
  font-size:1rem;
  color:var(--text-tertiary);
  margin-bottom:3rem;
  font-weight:300;
  letter-spacing:.05em;
}

.hero-links{
  display:flex;
  gap:1.5rem;
  justify-content:center;
  flex-wrap:wrap;
}

.hero-link{
  padding:1rem 2.5rem;
  background:transparent;
  border:1px solid var(--border);
  color:var(--text-primary);
  border-radius:2px;
  font-size:.9rem;
  font-weight:400;
  letter-spacing:.05em;
  transition:all var(--transition);
  text-decoration:none;
}

.hero-link:hover{
  background:var(--primary);
  color:var(--bg);
  border-color:var(--primary);
  transform:translateY(-2px);
  box-shadow:0 8px 24px rgba(255,229,0,.2);
}

.tabs{
  display:flex;
  gap:3rem;
  margin-bottom:3rem;
  border-bottom:1px solid var(--border);
  padding-bottom:0;
  justify-content:center;
}

.tab-btn{
  padding:1rem 0;
  background:transparent;
  border:none;
  color:var(--text-tertiary);
  font-size:.9rem;
  font-weight:400;
  letter-spacing:.1em;
  cursor:pointer;
  transition:color var(--transition);
  font-family:inherit;
  position:relative;
}

.tab-btn:hover{color:var(--text-secondary)}

.tab-btn.active{color:var(--primary)}

.tab-btn.active::after{
  content:'';
  position:absolute;
  bottom:0;
  left:0;
  right:0;
  height:1px;
  background:var(--primary);
}

.content{min-height:400px}

.tab-content{
  display:none;
  animation:fadeIn .5s;
}

.tab-content.active{display:block}

@keyframes fadeIn{
  from{opacity:0;transform:translateY(20px)}
  to{opacity:1;transform:translateY(0)}
}

.grid{
  display:grid;
  grid-template-columns:repeat(auto-fill,minmax(360px,1fr));
  gap:2rem;
}

.card{
  background:var(--surface);
  border:1px solid var(--border);
  border-radius:2px;
  padding:2rem;
  transition:all .4s cubic-bezier(.4,0,.2,1);
  position:relative;
  display:flex;
  flex-direction:column;
}

.card:hover{
  background:var(--surface-hover);
  border-color:var(--border-hover);
  transform:translateY(-6px);
  box-shadow:0 12px 40px var(--shadow);
}

.card-title{
  font-size:1.1rem;
  font-weight:500;
  color:var(--text-primary);
  margin-bottom:1rem;
  letter-spacing:.02em;
}

.card-desc{
  font-size:.85rem;
  color:var(--text-secondary);
  line-height:1.7;
  flex-grow:1;
  font-weight:300;
}

.card-link{
  text-decoration:none;
  color:inherit;
  display:flex;
  flex-direction:column;
  height:100%;
}

.fav-btn{
  position:absolute;
  top:1.5rem;
  right:1.5rem;
  width:36px;
  height:36px;
  background:transparent;
  border:1px solid var(--border);
  border-radius:2px;
  color:var(--text-tertiary);
  cursor:pointer;
  font-size:1rem;
  transition:all var(--transition);
  display:flex;
  align-items:center;
  justify-content:center;
}

.fav-btn:hover{
  background:var(--surface-hover);
  border-color:var(--primary);
  color:var(--primary);
  transform:scale(1.1);
}

.fav-btn.active{
  background:var(--primary);
  border-color:var(--primary);
  color:var(--bg);
}

.side-panel{
  position:fixed;
  top:0;
  right:-450px;
  width:450px;
  height:100vh;
  background:rgba(0,0,0,.98);
  backdrop-filter:blur(20px);
  border-left:1px solid var(--border);
  z-index:200;
  transition:all .4s cubic-bezier(.4,0,.2,1);
  overflow-y:auto;
  padding:3rem;
}

.side-panel.open{
  right:0;
  box-shadow:-20px 0 60px rgba(0,0,0,.5);
}

.panel-header{
  display:flex;
  justify-content:space-between;
  align-items:center;
  margin-bottom:3rem;
  padding-bottom:1.5rem;
  border-bottom:1px solid var(--border);
}

.panel-title{
  font-size:1.8rem;
  font-weight:300;
  color:var(--primary);
  letter-spacing:.1em;
}

.close-btn{
  width:44px;
  height:44px;
  background:transparent;
  border:1px solid var(--border);
  color:var(--text-secondary);
  border-radius:2px;
  font-size:1.8rem;
  cursor:pointer;
  transition:all var(--transition);
  display:flex;
  align-items:center;
  justify-content:center;
  font-family:inherit;
  font-weight:300;
}

.close-btn:hover{
  background:var(--surface-hover);
  border-color:var(--primary);
  color:var(--primary);
  transform:rotate(90deg);
}

.panel-section{
  margin-bottom:3rem;
  padding-bottom:3rem;
  border-bottom:1px solid var(--border);
}

.panel-section:last-child{border-bottom:none}

.section-title{
  font-size:1.1rem;
  font-weight:500;
  color:var(--text-primary);
  margin-bottom:1.5rem;
  letter-spacing:.05em;
}

.panel-text{
  font-size:.9rem;
  color:var(--text-secondary);
  line-height:1.8;
  font-weight:300;
}

.panel-text a{
  color:var(--primary);
  text-decoration:none;
  transition:border-color var(--transition);
  border-bottom:1px solid transparent;
}

.panel-text a:hover{border-bottom-color:var(--primary)}

.counter{
  margin-bottom:1.5rem;
  text-align:center;
}

.counter img{
  max-width:100%;
  height:auto;
  border-radius:2px;
}

.fav-list{
  display:flex;
  flex-direction:column;
  gap:1rem;
}

.fav-item{
  display:flex;
  justify-content:space-between;
  align-items:center;
  padding:1.2rem 1.5rem;
  background:var(--surface);
  border:1px solid var(--border);
  border-radius:2px;
  transition:all var(--transition);
}

.fav-item:hover{
  background:var(--surface-hover);
  border-color:var(--border-hover);
  transform:translateX(-4px);
}

.fav-item-link{
  color:var(--text-primary);
  text-decoration:none;
  flex-grow:1;
  font-size:.9rem;
  font-weight:400;
  transition:color var(--transition);
}

.fav-item-link:hover{color:var(--primary)}

.fav-remove{
  width:36px;
  height:36px;
  background:transparent;
  border:1px solid var(--border);
  color:var(--text-tertiary);
  border-radius:2px;
  font-size:1.4rem;
  cursor:pointer;
  transition:all var(--transition);
  display:flex;
  align-items:center;
  justify-content:center;
  font-family:inherit;
  font-weight:300;
  flex-shrink:0;
  margin-left:1rem;
}

.fav-remove:hover{
  background:var(--surface-hover);
  border-color:#f33;
  color:#f33;
  transform:rotate(90deg);
}

.empty{
  text-align:center;
  padding:4rem 1rem;
  color:var(--text-tertiary);
  font-size:.9rem;
  font-weight:300;
}

.overlay{
  position:fixed;
  inset:0;
  background:rgba(0,0,0,.8);
  z-index:150;
  opacity:0;
  pointer-events:none;
  transition:opacity .4s;
  backdrop-filter:blur(4px);
}

.overlay.show{
  opacity:1;
  pointer-events:auto;
}

@media(max-width:768px){
  .header{padding:0 1.5rem;height:70px}
  .header-actions{display:none}
  .start-icon{display:flex}
  .fav-icon-mobile{display:block}
  .container{padding:100px 1.5rem 2rem}
  .hero{padding:2rem 0 3rem;margin-bottom:3rem}
  .hero-title{font-size:2.5rem}
  .hero-subtitle{font-size:.9rem}
  .tabs{gap:2rem;overflow-x:auto;justify-content:flex-start}
  .grid{grid-template-columns:1fr;gap:1.5rem}
  .side-panel{width:100%;right:-100%;padding:2rem 1.5rem}
  .card{padding:1.5rem}
}

::-webkit-scrollbar{width:8px;height:8px}
::-webkit-scrollbar-track{background:var(--surface)}
::-webkit-scrollbar-thumb{background:var(--border-hover);border-radius:2px}
::-webkit-scrollbar-thumb:hover{background:var(--text-tertiary)}