/*Animation styles*/
#animation-container {
    margin:0;
    height:100vh;
    display: flex;
    justify-content: center;
    align-items: center;
    background-image: url('space.webp'); /*load slow on very first web run*/
    /* background-color: black; */
    background-repeat: no-repeat;
    background-size: cover;
    background-attachment: fixed;
    background-size: 100% 100%;
    overflow: hidden;
}
#animation-container > .container {
    font-size: 10px;
    height: 40em;
    width: 40em;
    position: relative;
}
.sun {
    position: absolute;
    top: 15em;
    left: 15em;
    width: 10em;
    height: 10em;
    background-color: yellow;
    border-radius: 50%;
    box-shadow: 0 0 3em white;
}
.earth, .moon {
    position: absolute;
    border-style: solid;
    border-color: white transparent transparent transparent;
    border-width: 0.1em 0.1em 0 0;
    border-radius: 50%;
}    
@keyframes orbit {
    to {
        transform: rotate(360deg);
    }
}
.earth {
    top: 5em;
    right: 5em;
    width: 30em;
    height: 30em;
    animation: orbit 8s linear infinite;
}
.moon {
    top: 1em;
    right: 1em;
    width: 6em;
    height: 6em;
    animation: orbit 0.8s linear infinite;
}
.mars {
    position: absolute;
    top: -3em;        /* xa hơn Trái Đất */
    right: -3em;
    width: 44em;
    height: 44em;
    border-style: solid;
    border-color: red transparent transparent transparent;
    border-width: 0.1em 0.1em 0 0;
    border-radius: 50%;
    animation: orbit 12s linear infinite; /* Mars quay lâu hơn Earth */
}
.venus {
    position: absolute;
    top: 10em;        /* gần hơn Trái Đất */
    right: 10em;
    width: 20em;
    height: 20em;
    border-style: solid;
    border-color: rgb(255, 196, 0) transparent transparent transparent;
    border-width: 0.1em 0.1em 0 0;
    border-radius: 50%;
    animation: orbit 4s linear infinite; 
}
.mercury {
    position: absolute;
    top: 13.5em;
    right: 13em;
    width: 14em;
    height: 14em;
    border-style: solid;
    border-color: gray transparent transparent transparent;
    border-width: 0.1em 0.1em 0 0;
    border-radius: 50%;
    animation: orbit 2s linear infinite; /* Mercury quay nhanh nhất */
}
.mercury::before {
    content: '';
    position: absolute;
    top: 1.4em;
    right: 1.4em;
    width: 1.2em;
    height: 1.2em;
    background-color: gray;
    border-radius: 50%;
}

.venus::before {
    content:'';
    position: absolute;
    top: 1.8em;
    right: 1.8em;
    width: 2.2em;
    height: 2.2em;
    background-color: rgb(255, 196, 0);
    border-radius: 50%;
}

.mars::before {
    content: '';
    position: absolute;
    top: 5.4em;
    right: 5.4em;
    width: 2em;
    height: 2em;
    background-color: orangered;
    border-radius: 50%;
}

.earth::before,
.moon::before {
    content:'';
    position: absolute;
    border-radius: 50%;
}
.earth::before {
    top: 2.8em;
    right: 2.8em;
    width: 3em;
    height: 3em;
    background-color: aqua; 
}
.moon::before {
    top: 0.2em;
    right: 0.2em;
    width: 1.2em;
    height: 1.2em;
    background-color: silver;
}
.fade-out {
opacity: 0;
transition: opacity 1s ease;
}




/* General styles */
#main-site {
    scroll-behavior: smooth;
    background-color: #04153c;
}
.blue-text {
    color:#3274e7;
}
.red-text {
    color: #da272a;
}
.green-text {
    color: #0ba43e;
}
.scrolltotop-btn {
    z-index: 1100;
    position: fixed;
}
/* Navbar section */
.NavBar {
    background-color: rgba(0, 0, 0, 0.587);
}
.Search_btn {
    color: white;
    background-color: #3274e7;
    border: 1px solid #3274e7;
}
.Search_btn:hover {
    color: white;
    background-color: #2262cf;
    border: 1px solid #2262cf;
}

.navbar-nav > .nav-item {
    position: relative;
}

.nav-item::before {
    z-index: -1;
    content: "";
    position: absolute;
    width: 100%;
    height: 2px;
    background-color: #327ae7;
    bottom: 0;
    left: 0;
    transform-origin: right;
    transform: scaleX(0);
    transition: transform 0.3s ease-in-out;
}
/* .GithubIcon::before {
    display: none;
} */
.GithubIcon{
    font-size: 1.2rem;
    color: white;
    transition: color 0.3s ease;
}
.GithubIcon:hover{
    color: #327ae7;
}
/* .no-underline::before {
    display: none;
} */

.nav-item:hover::before {
    transform: scaleX(1);
    transform-origin: left;
}

.nav-item :not(:hover)::before {
    transform: scaleX(0);
    transform-origin: right;
}

.contact-bar {
    background-color:#02103d;
    color:white;
    padding:1rem;
    padding-top:5px;
    display: flex;
    align-items: stretch;
    justify-content: center;
}

.navbar-nav.flex-even > .nav-item { flex: 1, 1, 0; }
.navbar-nav.flex-even > .nav-item .nav-link {text-align: center;}

.custom-toggler .navbar-toggler-icon {
  background-image: url("data:image/svg+xml;charset=utf8,%3Csvg viewBox='0 0 30 30' xmlns='http://www.w3.org/2000/svg'%3E%3Cpath stroke='white' stroke-width='2' stroke-linecap='round' stroke-miterlimit='10' d='M4 7h22M4 15h22M4 23h22'/%3E%3C/svg%3E");
}

/* buyMeaCoffee button */
.buyMeaCoffee-btn {
    display: inline-flex;
    align-items: center;
    overflow: hidden; /*Hide overflowing text when span is hidden*/
    width: 40px; /* Width enough for icon only */
    transition: width 0.4s ease;
    white-space: nowrap; /* Prevent text from wrapping */
}

.buyMeaCoffee-btn span {
    white-space: nowrap;
    display: inline-block;
    transform: translateX(-100%);
    opacity: 0;
    transition: transform 0.4s ease, opacity 0.4s ease;
    margin-left: 8px; /*Space between icon and text*/
}

.buyMeaCoffee-btn:hover {
    width: 180px; /* Adjust width to fit icon + text */
}

.buyMeaCoffee-btn:hover span {
    transform: translateX(0);
    opacity: 1;
}
/* Intro Section */
.Intro {
    position: relative;
    height: 100vh;
    overflow: hidden;
    background-image: url("satellites.webp"); /*compressed the intro background image for better performance*/
    background-repeat: no-repeat;
    background-size: cover;
    background-position: center;
    color:white;
}
.Intro .overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(27, 26, 26, 0.651);
    z-index: 1;
}

.Intro .IntroContent {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%) translateY(250px);
    transition: transform 0.5s ease;
    z-index: 2;
    width: 90%;
}

.IntroContent {
    position: fixed;
    z-index: 800;
    transition: transform 0.3s ease;
}

.Intro { position: relative; }
.Intro::before {
  content: "";
  position: absolute; inset: 0;
  z-index: 1; pointer-events: none;
}
.Intro > * { position: relative; z-index: 2; }

/* Custom display of buttons in smaller screens (<412px) */
.btn-group-responsive {
    display: inline-flex;
    align-items: center;
    gap: 10px;
}

@media (max-width: 412px) {
    .btn-group-responsive {
        display: flex;
        flex-direction: column;
        align-items: stretch;
    }

    .btn-group-responsive button, 
    .btn-group-responsive a {
        width: 100%;
        text-align: center;
    }
}

.Membership {
    position: relative;
    height: 100vh;
    background-size: cover;
    background-position: center;
    color: white;
}

.Membership .overlay {
  position: absolute;
  top: 0;
  left: 0;
  height: 100%;
  width: 100%;
  background: linear-gradient(
    to right,
    rgba(0, 0, 0, 0.85) 0%,     /* solid dark */
    rgba(0, 0, 0, 0.6) 30%,     /* start fading */
    rgba(0, 0, 0, 0.0) 60%,     /* fully transparent by 60% */
    rgba(0, 0, 0, 0.0) 100%     /* remain transparent */
  );
  z-index: 1;
}

.Membership .container {
    position: relative;
    z-index: 2;
}

.Services {
    background-color: #020c24;
    color:white;
}

.service-card {
    background-color: rgb(173, 204, 251);
    transition: 0.3s ease-in-out;
}
.service-card:hover {
    transform: scale(1.05)
}


.Price {
    position: relative;
    color:white;
    scroll-margin-top: 12px;
}
.Price code{
    color: rgb(180, 204, 245);
}
.Price .overlay {
    position: absolute;
    top: 0;
    left: 0;
    height: 100%;
    width: 100%;
    background: 
        radial-gradient(circle at 25% 30%, rgba(100, 28, 103, 0.4), transparent 40%),
        radial-gradient(circle at 75% 70%, rgba(17, 102, 133, 0.35), transparent 50%),
        linear-gradient(to bottom right, #050b1e, #0a122d, #04153c);
    background-blend-mode: overlay;
    z-index: 1;
}
.Full-Membership {
    background-color: #2b343e;
}
.Associate-Membership {
    background-color: #1a1a20;
}

/* Countdown style */
.sa-countdown{
    --gap:.5rem;
    --pad:.75rem;
    --radius:0.75rem;
    /* --shadow:0 6px 20px rgba(0,0,0,.08); */
    display:grid;
    gap:var(--gap);
    justify-items:center;
    padding:1rem;
    border-radius:var(--radius);
    /* box-shadow:var(--shadow); */
    background:rgb(180, 204, 245);
    color:#111;
    max-width:fit-content;
    margin-bottom: 10px;
    /* margin:auto; */
}

.sa-title{font-size:1.05rem}

.sa-grid{
    display:flex;
    gap:var(--gap)
}

.sa-cell{
    /* min-width:75px; */
    padding:var(--pad);
    border-radius:var(--radius);
    border:1px solid #cee3f8;
    text-align:center
}

.sa-cell span{
    display:block;
    font-size:1.8rem;
    font-weight:700;
    line-height:1
}

.sa-cell small{
    display:block;
    opacity:.7;
    margin-top:.25rem
}

.sa-note{
    margin:0;
    opacity:.7;
    font-size:.9rem
}

/* @media (max-width:440px){
    .sa-cell{min-width:70px}
    .sa-cell span{font-size:1.5rem}
} */

@media (min-width: 1200px) {
    .sa-cell {
        min-width: 75px;
    }
}
/* 
@media (max-width: 576px) {
  .sa-cell {
    min-width: 55px;
    padding: 0.5rem;
  }
  .sa-cell span {
    font-size: 1.4rem;
  }

} */