/* ================= RESET ================= */

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

body{
  font-family:"Helvetica Neue","Hiragino Kaku Gothic ProN","Yu Gothic",sans-serif;
  background:#f5f9ff;
  color:#1f2a44;
}

/* ================= BACKGROUND ================= */

.bg{
  position:fixed;
  inset:0;
  z-index:-1;
  background-image:
    radial-gradient(circle at 28% 22%, rgba(230,43,30,.25), transparent 58%),
    radial-gradient(circle at 72% 78%, rgba(230,43,30,.18), transparent 62%),
    linear-gradient(to bottom, rgba(0,0,0,.45), rgba(0,0,0,.75)),
    url("images/background.png");
  background-size:cover;
  background-position:center;
  background-repeat:no-repeat;
  filter:saturate(.95) contrast(1.05);
}

/* ================= LAYOUT ================= */

.container{
  width:90%;
  max-width:1200px;
  margin:0 auto;
}

/* ================= HEADER ================= */

.header{
  position:sticky;
  top:0;
  z-index:100;
  height:70px;
  background:#ffffff;
  border-bottom:1px solid rgba(0,0,0,.1);
  display:flex;
  align-items:center;
}

.header-inner{
  display:flex;
  justify-content:space-between;
  align-items:center;
  width:100%;
}

/* ================= NAV DESKTOP ================= */

.nav{
  display:flex;
  gap:18px;
  align-items:center;
}

.nav a{
  text-decoration:none;
  color:rgba(0,0,0,.78);
  font-size:13px;
  letter-spacing:.12em;
  padding:10px 12px;
  border-radius:999px;
  transition:all .2s ease;
}

.nav a:hover{
  background:rgba(0,0,0,.06);
  color:rgba(0,0,0,.95);
  transform:translateY(-1px);
}

/* ================= HAMBURGER ================= */

.hamburger{
  display:none;
  flex-direction:column;
  justify-content:center;
  gap:5px;
  width:28px;
  height:22px;
  background:none;
  border:none;
  cursor:pointer;
}

.hamburger span{
  width:100%;
  height:3px;
  background:#000;
  border-radius:3px;
}

/* ================= HERO CONTACT SECTION ================= */

.contact-section{
  width:100%;
  min-height:calc(100vh - 70px);
  display:flex;
  flex-direction:column;
  justify-content:center;
  align-items:center;
  text-align:center;
  padding:40px 20px;
}

.contact-title{
  font-size:clamp(48px,8vw,92px);
  font-weight:900;
  color:#ffffff;
  text-shadow:
    0 4px 20px rgba(0,0,0,.6),
    0 0 30px rgba(0,0,0,.4);
  margin-bottom:70px;
  letter-spacing:.03em;
}

/* ================= BUTTON ================= */

.ticket-button-wrapper{
  text-align:center;
}

.ticket-btn{
  display:inline-block;
  padding:26px 70px;
  font-size:24px;
  font-weight:900;
  letter-spacing:.05em;
  color:#ffffff;
  text-decoration:none;
  border-radius:60px;
  background:linear-gradient(90deg,#e62b1e,#ff6a6a,#e62b1e);
  background-size:200% 200%;
  animation:gradientMove 3s ease infinite;
  box-shadow:
    0 0 25px rgba(230,43,30,.7),
    0 0 60px rgba(230,43,30,.4);
  transition:transform .25s ease, box-shadow .25s ease;
}

.ticket-btn:hover{
  transform:scale(1.12);
  box-shadow:
    0 0 40px rgba(230,43,30,.9),
    0 0 90px rgba(230,43,30,.6);
}

@keyframes gradientMove{
  0%{background-position:0% 50%;}
  50%{background-position:100% 50%;}
  100%{background-position:0% 50%;}
}


.site-footer{
  width:100%;
  margin-top:-50px;
  display:flex;
  justify-content:center;
  align-items:center;
  overflow:hidden;
}

.site-footer img{
  width:120%;
  max-width:none;
  height:auto;
}


@media (max-width:768px){

  .header{
    position:relative;
  }

  .nav{
    display:none;
    position:absolute;
    top:70px;
    left:0;
    width:100%;
    background:#ffffff;
    flex-direction:column;
    align-items:center;
    gap:22px;
    padding:28px 0;
    box-shadow:0 12px 30px rgba(0,0,0,0.12);
  }

  .nav.open{
    display:flex;
  }

  .hamburger{
    display:flex;
  }

  .contact-title{
    font-size:clamp(40px,10vw,64px);
    margin-bottom:50px;
  }

  .ticket-btn{
    font-size:20px;
    padding:20px 50px;
  }

  .container{
    width:100%;
    padding:0 20px;
  }
  
}