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

*{
    margin:0;
    padding:0;
    box-sizing:border-box;
    font-family: "Segoe UI", sans-serif;
}

html{
    scroll-behavior:smooth;
}

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

body{
    background: hsla(268, 5%, 13%, 1);
    color:#eaeaea;
    min-height:100vh;
    padding:30px 16px;
}

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

.container{
    max-width:1050px;
    margin:auto;
}

/* ===========================
   CARD GLASS
=========================== */

.card{
    background: rgba(255,255,255,0.04);
    border: 1px solid rgba(255,255,255,0.08);
    border-radius:18px;
    padding:26px;
    margin-bottom:18px;
    backdrop-filter: blur(14px);
    transition:0.25s ease;
}

.card:hover{
    transform: translateY(-3px);
    border-color: rgba(255,255,255,0.18);
}

/* ===========================
   CENTER
=========================== */

.center{
    text-align:center;
}

/* ===========================
   LOGO
=========================== */

.logo{
    width:140px;
    height:140px;
    border-radius:50%;
    object-fit:cover;
    border:3px solid rgba(255,255,255,0.12);
    margin-bottom:12px;
    transition:0.3s ease;
    box-shadow: 0 10px 30px rgba(0,0,0,0.4);
}

.logo:hover{
    transform: scale(1.05);
}

/* ===========================
   TEXT
=========================== */

h1{
    font-size:30px;
    margin-bottom:6px;
    letter-spacing:1px;
}

h2{
    font-size:20px;
    margin-bottom:18px;
}

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

.info-item{
    padding:12px 0;
    border-bottom:1px solid rgba(255,255,255,0.06);
    display:flex;
    flex-direction:column;
    gap:6px;
}

.info-item:last-child{
    border-bottom:none;
}

.info-item strong{
    font-size:13px;
    color:#ffffff;
    opacity:0.9;
}

.info-item span{
    color:#cfcfcf;
    line-height:1.6;
}

/* ===========================
   PHONE
=========================== */

.phone-box{
    text-align:center;
    margin-top:10px;
}

.phone-number{
    font-size:24px;
    font-weight:700;
    letter-spacing:1px;
    margin-bottom:14px;
}

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

button{
    cursor:pointer;
    border:none;
}

/* COPY BUTTON */

.copy-btn{
    width:100%;
    padding:14px;
    border-radius:12px;
    background: rgba(255,255,255,0.08);
    color:white;
    font-weight:600;
    transition:0.2s ease;
}

.copy-btn:hover{
    background: rgba(255,255,255,0.14);
    transform: translateY(-2px);
}

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

.contact-buttons{
    margin-top:14px;
}

.zalo-btn{
    display:block;
    text-align:center;
    padding:14px;
    border-radius:12px;
    background:#0068ff;
    color:white;
    text-decoration:none;
    font-weight:600;
    transition:0.2s ease;
}

.zalo-btn:hover{
    filter:brightness(1.1);
    transform: translateY(-2px);
}

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

.toggle-btn{
    width:100%;
    padding:14px;
    border-radius:12px;
    background: rgba(255,255,255,0.06);
    color:white;
    font-weight:600;
    transition:0.2s ease;
}

.toggle-btn:hover{
    background: rgba(255,255,255,0.12);
}

/* ===========================
   INTRO + POLICY TEXT
=========================== */

.intro-content{
    margin-top:16px;
    line-height:1.8;
    color:#d6d6d6;
}

/* ===========================
   HIDDEN
=========================== */

.hidden{
    display:none;
}

/* ===========================
   TOAST
=========================== */

.toast{
    position:fixed;
    bottom:25px;
    right:25px;
    width:300px;
    background:#1b1b1b;
    border-radius:14px;
    overflow:hidden;
    opacity:0;
    transform: translateY(20px);
    transition:0.3s ease;
    pointer-events:none;
}

.toast.show{
    opacity:1;
    transform: translateY(0);
}

.toast-text{
    padding:14px;
}

.toast-progress{
    height:3px;
    width:100%;
    background:#22c55e;
}

.toast.show .toast-progress{
    animation: progress 2.5s linear forwards;
}

@keyframes progress{
    from{ width:100%; }
    to{ width:0%; }
}

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

@media(max-width:768px){

    body{
        padding:14px;
    }

    .card{
        padding:18px;
    }

    h1{
        font-size:24px;
    }

    .logo{
        width:110px;
        height:110px;
    }

    .toast{
        width:90%;
        right:5%;
    }
}