*{
    box-sizing:border-box;
}

html{
    scroll-behavior:smooth;
    scroll-padding-top:85px;
}

body{
    margin:0;
    font-family:Arial,Helvetica,sans-serif;
    background:#f4faf8;
    color:#263b35;
    line-height:1.7;
}

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

.header{
    position:sticky;
    top:0;
    z-index:999;
    background:#ffffff;
    border-bottom:1px solid #dcebe5;
    box-shadow:0 2px 12px rgba(0,80,60,.06);
}

.header-inner{
    max-width:1250px;
    margin:auto;
    height:75px;
    padding:0 20px;
    display:flex;
    align-items:center;
    justify-content:space-between;
}

.logo{
    display:flex;
    align-items:center;
    gap:12px;
    text-decoration:none;
    font-size:25px;
    font-weight:800;
    color:#111111;
}

.logo img{
    width:48px;
    height:48px;
    object-fit:contain;
    border-radius:10px;
}

.logo span{
    color:#111111;
}

.logo span::first-letter{
    color:#008b65;
}

nav{
    display:flex;
    gap:28px;
}

nav a{
    text-decoration:none;
    color:#38564c;
    font-weight:600;
    transition:.2s;
}

nav a:hover{
    color:#00a878;
}

.menu-btn{
    display:none;
    background:none;
    border:0;
    font-size:27px;
    cursor:pointer;
    color:#008b65;
}

/* ================= HERO ================= */

.hero{
    padding:65px 20px 75px;
    text-align:center;
    color:white;

    background:
    radial-gradient(
        circle at 30% 20%,
        #008f68 0%,
        #006d55 28%,
        #043d35 55%,
        #061c20 100%
    );

    border-bottom:4px solid #00b7d9;
}

.hero-content{
    max-width:950px;
    margin:auto;
}

.hero-logo{
    width:125px;
    height:125px;
    object-fit:contain;
    border-radius:25px;
    margin-bottom:20px;
    background:#ffffff;
    padding:5px;
    box-shadow:0 10px 35px rgba(0,0,0,.25);
}

.hero h1{
    font-size:48px;
    line-height:1.2;
    margin:10px 0 20px;

    background:linear-gradient(
        90deg,
        #ffffff,
        #64f2c7,
        #38d7ff
    );

    -webkit-background-clip:text;
    background-clip:text;
    color:transparent;
}

.hero p{
    font-size:18px;
    max-width:800px;
    margin:0 auto 30px;
    color:#e0f5ef;
}

/* ================= BUTTONS ================= */

.hero-buttons{
    display:flex;
    justify-content:center;
    gap:15px;
    flex-wrap:wrap;
}

.primary-btn,
.secondary-btn{
    padding:15px 27px;
    border-radius:10px;
    text-decoration:none;
    font-weight:700;
    transition:.25s;
}

.primary-btn{
    background:linear-gradient(
        100deg,
        #008b65,
        #00b789
    );
    color:white;
    box-shadow:0 8px 20px rgba(0,180,130,.25);
}

.primary-btn:hover{
    transform:translateY(-2px);
    box-shadow:0 10px 25px rgba(0,180,130,.35);
}

.secondary-btn{
    border:1px solid #38d7ff;
    color:white;
    background:rgba(0,0,0,.20);
}

.secondary-btn:hover{
    background:#ffffff;
    color:#008b65;
}

/* ================= CONTAINER ================= */

.container{
    max-width:1250px;
    margin:auto;
    padding:35px 18px;
}

/* ================= CARDS ================= */

.card{
    background:#ffffff;
    border:1px solid #d9ebe4;
    border-radius:18px;
    padding:32px;
    margin-bottom:28px;

    box-shadow:
        0 4px 16px rgba(0,80,60,.06);
}

.card h2{
    font-size:30px;
    color:#073d32;
    margin:0 0 22px;
    padding-bottom:13px;
    border-bottom:2px solid #e7f2ee;
}

.card p,
.card li{
    font-size:17px;
    color:#405c52;
}

/* ================= TOC ================= */

.toc{
    display:grid;
}

.toc a{
    text-decoration:none;
    color:#176b58;
    font-size:16px;
    padding:5px 0;
    transition:.2s;
}

.toc a:hover{
    color:#00a878;
    padding-left:5px;
}

/* ================= INVITE CODE ================= */

.invite-box{
    display:flex;
    align-items:center;
    justify-content:space-between;
    gap:20px;

    padding:20px 25px;

    border:1px dashed #00a878;
    border-radius:14px;

    background:
        linear-gradient(
            135deg,
            #f0fff9,
            #eefcff
        );
}

.invite-box span{
    display:block;
    font-size:12px;
    color:#638177;
    font-weight:bold;
}

.invite-box strong{
    display:block;
    font-size:28px;
    letter-spacing:3px;
    color:#008b65;
}

.invite-box button{
    border:0;

    background:
        linear-gradient(
            100deg,
            #008b65,
            #00b7a0
        );

    color:white;
    padding:12px 22px;
    border-radius:9px;
    font-weight:bold;
    cursor:pointer;

    transition:.2s;
}

.invite-box button:hover{
    transform:translateY(-2px);
}

.small-note{
    font-size:14px!important;
    color:#71877f!important;
}

/* ================= DOWNLOAD ================= */

.download-btn{
    display:block;
    max-width:400px;
    margin:25px auto;
    padding:16px;

    text-align:center;
    text-decoration:none;

    color:white;
    font-weight:bold;
    font-size:18px;

    border-radius:12px;

    background:
        linear-gradient(
            100deg,
            #008b65,
            #00b8a0,
            #16bde0
        );

    box-shadow:
        0 8px 20px rgba(0,150,120,.25);

    transition:.25s;
}

.download-btn:hover{
    transform:translateY(-3px);
    box-shadow:
        0 12px 28px rgba(0,150,120,.35);
}

/* ================= APP INFO ================= */

.app-info{
    display:grid;
    grid-template-columns:repeat(4,1fr);
    gap:15px;
    margin-top:25px;
}

.app-info div{
    padding:18px;

    background:#f4faf8;
    border:1px solid #dcebe5;
    border-radius:12px;

    text-align:center;
}

.app-info span{
    display:block;
    font-size:11px;
    color:#738a81;
}

.app-info strong{
    font-size:16px;
    color:#123d33;
}

/* ================= FEATURES ================= */

.features{
    display:grid;
    grid-template-columns:1fr 1fr;
    gap:20px;
}

.feature{
    padding:25px;
    border:1px solid #dcebe5;
    border-radius:15px;

    background:
        linear-gradient(
            135deg,
            #ffffff,
            #f5fbf9
        );

    transition:.25s;
}

.feature:hover{
    transform:translateY(-3px);

    border-color:#00a878;

    box-shadow:
        0 8px 22px rgba(0,120,90,.10);
}

.feature-icon{
    font-size:30px;
}

.feature h3{
    color:#008b65;
    margin:8px 0;
}

/* ================= TABLE ================= */

table{
    width:100%;
    border-collapse:collapse;
}

th,
td{
    border:1px solid #dcebe5;
    padding:15px;
    text-align:left;
}

th{
    background:#edf8f4;
    color:#174f42;
}

/* ================= SCREENSHOTS ================= */

.screenshots{
    display:grid;
    grid-template-columns:repeat(3,1fr);
    gap:20px;
}

.screenshots div{
    border:1px solid #dcebe5;
    border-radius:14px;
    overflow:hidden;
    text-align:center;
    background:#ffffff;
}

.screenshots img{
    width:100%;
    height:400px;
    object-fit:contain;

    background:#071a18;

    display:block;
}

.screenshots p{
    font-weight:bold;
    font-size:15px;
    color:#174f42;
}

/* ================= NOTICE ================= */

.notice,
.warning{
    padding:20px;
    border-radius:12px;

    background:#eefaf6;
    border-left:5px solid #00a878;
}

.warning{
    background:#fff8ed;
    border-left-color:#f09a28;
}

/* ================= FAQ ================= */

details{
    border:1px solid #dcebe5;
    border-radius:12px;
    margin:12px 0;
    padding:0 18px;

    background:#ffffff;
}

summary{
    cursor:pointer;
    font-weight:bold;
    padding:17px 0;
    color:#174f42;
}

details p{
    padding-bottom:12px;
}

/* ================= FOOTER ================= */

footer{
    background:
        linear-gradient(
            135deg,
            #031512,
            #041f1a,
            #061b21
        );

    color:#9bc6ba;
    padding:50px 20px 25px;
}

.footer-inner{
    max-width:1000px;
    margin:auto;

    display:grid;
    grid-template-columns:1.3fr 1fr 1fr;

    gap:50px;
}

footer h3{
    color:white;
}

footer a{
    display:block;
    color:#9bc6ba;
    text-decoration:none;
    margin:6px 0;
    transition:.2s;
}

footer a:hover{
    color:#35d9b2;
}

.copyright{
    max-width:1000px;
    margin:35px auto 0;
    padding-top:22px;

    border-top:1px solid #28453e;

    text-align:center;
    color:#83a99f;
}

/* ================= MOBILE ================= */

@media(max-width:760px){

    .header-inner{
        height:65px;
    }

    .logo{
        font-size:21px;
    }

    .logo img{
        width:40px;
        height:40px;
    }

    .menu-btn{
        display:block;
    }

    nav{
        display:none;

        position:absolute;
        left:0;
        right:0;
        top:65px;

        background:white;

        padding:12px 20px;

        flex-direction:column;
        gap:0;

        border-bottom:1px solid #dcebe5;

        box-shadow:0 5px 15px rgba(0,0,0,.08);
    }

    nav.active{
        display:flex;
    }

    nav a{
        padding:11px 0;
    }

    .hero{
        padding:45px 17px 55px;
    }

    .hero-logo{
        width:95px;
        height:95px;
    }

    .hero h1{
        font-size:34px;
    }

    .hero p{
        font-size:16px;
    }

    .container{
        padding:25px 13px;
    }

    .card{
        padding:23px 17px;
    }

    .card h2{
        font-size:25px;
    }

    .card p,
    .card li{
        font-size:16px;
    }

    .invite-box{
        align-items:flex-start;
        flex-direction:column;
    }

    .invite-box button{
        width:100%;
    }

    .app-info,
    .features,
    .screenshots,
    .footer-inner{
        grid-template-columns:1fr;
    }

    .screenshots img{
        height:450px;
    }

    table{
        display:block;
        overflow-x:auto;
        white-space:nowrap;
    }

}