@import url('https://fonts.googleapis.com/css2?family=Inter:wght@400;500;600;700;800;900&display=swap');

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

html{
    -webkit-font-smoothing:antialiased;
    -moz-osx-font-smoothing:grayscale;
}

body{
    font-family:'Inter',Arial,sans-serif;
    background:linear-gradient(135deg,#fff7f7,#f4f7ff);
    color:#111827;
}

.wrap{
    width:94%;
    max-width:1180px;
    margin:auto;
}

/* HEADER */

.hero{
    padding:22px 0 28px;
}

.lang-switch{
    display:flex;
    justify-content:center;
    flex-wrap:wrap;
    gap:8px;
    margin-bottom:18px;
}

.lang-switch a{
    text-decoration:none;
    color:#111827;
    background:#fff;
    border:1px solid rgba(0,0,0,.08);
    padding:9px 14px;
    border-radius:999px;
    font-size:14px;
    font-weight:800;
    box-shadow:0 6px 16px rgba(0,0,0,.05);
}

.lang-switch a:hover{
    background:#ef4444;
    color:#fff;
}

.hero-card{
    position:relative;
    background:linear-gradient(135deg,#ef4444,#f97316);
    color:#fff;
    border-radius:34px;
    padding:90px 40px 42px;
    display:grid;
    grid-template-columns:1.2fr .8fr;
    align-items:center;
    gap:30px;
    box-shadow:0 25px 60px rgba(239,68,68,.3);
    overflow:hidden;
}

.hero-card:before{
    content:"";
    position:absolute;
    width:320px;
    height:320px;
    border-radius:50%;
    background:rgba(255,255,255,.08);
    right:-120px;
    top:-130px;
}

.hero-card:after{
    content:"";
    position:absolute;
    width:200px;
    height:200px;
    border-radius:50%;
    background:rgba(255,255,255,.07);
    right:180px;
    bottom:-90px;
}

.hero-content,
.hero-visual,
.agent-buttons{
    position:relative;
    z-index:2;
}

.badge{
    display:inline-block;
    background:rgba(255,255,255,.22);
    padding:8px 14px;
    border-radius:999px;
    font-size:13px;
    font-weight:900;
    margin-bottom:16px;
}

.hero-card h1{
    font-size:44px;
    line-height:1.08;
    margin-bottom:12px;
    font-weight:900;
    letter-spacing:-1.3px;
}

.hero-card p{
    font-size:19px;
    font-weight:600;
    opacity:.96;
}

.hero-note{
    margin-top:18px;
    background:rgba(255,255,255,.18);
    display:inline-block;
    padding:12px 15px;
    border-radius:16px;
    font-weight:800;
}

.hero-visual{
    display:flex;
    justify-content:center;
}

.phone-card{
    width:245px;
    background:rgba(255,255,255,.95);
    color:#111827;
    border-radius:32px;
    padding:26px;
    box-shadow:0 22px 55px rgba(0,0,0,.22);
    transform:rotate(3deg);
}

.phone-card .signal{
    font-size:44px;
    margin-bottom:14px;
}

.phone-card h3{
    font-size:24px;
    font-weight:900;
    margin-bottom:6px;
}

.phone-card p{
    color:#64748b;
    font-size:15px;
    margin-bottom:16px;
}

.phone-card strong{
    display:block;
    background:#111827;
    color:#fff;
    padding:12px;
    border-radius:16px;
    text-align:center;
}

.agent-buttons{
    position:absolute;
    top:20px;
    right:24px;
    display:flex;
    gap:8px;
}

.agent-register-btn,
.agent-login-btn{
    display:inline-flex;
    align-items:center;
    justify-content:center;
    color:#fff;
    padding:10px 14px;
    border-radius:999px;
    text-decoration:none;
    font-weight:900;
    font-size:14px;
    transition:.2s;
}

.agent-register-btn{
    background:#111827;
}

.agent-login-btn{
    background:#16a34a;
}

.agent-register-btn:hover,
.agent-login-btn:hover{
    transform:translateY(-2px);
    filter:brightness(.95);
}

/* FEATURES */

.features-bar{
    display:grid;
    grid-template-columns:repeat(4,1fr);
    gap:12px;
    margin:22px 0 5px;
}

.features-bar div{
    background:#fff;
    border-radius:18px;
    padding:16px 12px;
    text-align:center;
    font-weight:900;
    box-shadow:0 10px 28px rgba(15,23,42,.07);
}

/* FILTER */

.filter-box{
    background:#fff;
    border-radius:26px;
    padding:22px;
    box-shadow:0 15px 35px rgba(15,23,42,.07);
    margin:20px 0 24px;
}

.filter-box h2{
    font-size:24px;
    font-weight:900;
    margin-bottom:14px;
}

.filter-bar{
    display:flex;
    flex-wrap:wrap;
    gap:10px;
}

.filter-btn{
    border:0;
    background:#f1f5f9;
    color:#111827;
    padding:11px 15px;
    border-radius:999px;
    font-weight:900;
    cursor:pointer;
}

.filter-btn.active,
.filter-btn:hover{
    background:#ef4444;
    color:#fff;
}

/* SECTION */

.section-title{
    font-size:28px;
    margin:34px 0 18px;
    padding:16px 20px;
    background:#fff;
    border-radius:20px;
    box-shadow:0 12px 35px rgba(0,0,0,.07);
    border-left:7px solid #ef4444;
    color:#111827;
    font-weight:900;
}

/* PLANS */

.plans{
    display:grid;
    grid-template-columns:repeat(auto-fit,minmax(280px,350px));
    justify-content:center;
    gap:22px;
    padding:10px 0 40px;
}

.card{
    position:relative;
    background:#fff;
    border-radius:26px;
    padding:20px;
    box-shadow:0 18px 45px rgba(31,41,55,.09);
    border:1px solid rgba(0,0,0,.05);
    overflow:hidden;
    width:100%;
    transition:.25s;
}

.card:before{
    content:"";
    position:absolute;
    left:0;
    top:0;
    width:100%;
    height:6px;
    background:var(--accent,#ef4444);
}

.card:hover{
    transform:translateY(-5px);
    box-shadow:0 25px 55px rgba(31,41,55,.14);
}

.hot-badge{
    position:absolute;
    right:14px;
    top:14px;
    background:#f59e0b;
    color:#fff;
    padding:6px 10px;
    border-radius:999px;
    font-size:11px;
    font-weight:900;
    z-index:3;
}

.card-top{
    display:flex;
    justify-content:space-between;
    align-items:center;
    gap:10px;
    margin:12px 0 14px;
}

.carrier{
    font-size:13px;
    font-weight:900;
    color:var(--accent,#ef4444);
    text-transform:uppercase;
    letter-spacing:.8px;
    background:#f8fafc;
    padding:7px 11px;
    border-radius:999px;
}

.sim-pill{
    background:#111827;
    color:#fff;
    padding:7px 11px;
    border-radius:999px;
    font-size:12px;
    font-weight:900;
    white-space:nowrap;
}

.card h2{
    font-size:20px;
    line-height:1.35;
    margin-bottom:14px;
    min-height:52px;
    font-weight:900;
}

/* INFO */

.info-grid{
    display:grid;
    gap:8px;
    margin-bottom:14px;
}

.info-grid div{
    display:flex;
    align-items:center;
    gap:9px;
    background:#f8fafc;
    border-radius:13px;
    padding:10px 11px;
    font-size:13px;
    line-height:1.35;
}

.info-grid span{
    font-size:18px;
    min-width:22px;
}

.info-grid b{
    font-weight:700;
}

/* PRICE */

.price{
    background:linear-gradient(135deg,#fff5f5,#fff);
    border:2px solid #ffe1e1;
    border-radius:20px;
    padding:14px;
    text-align:center;
    margin:15px 0;
}

.price small{
    display:block;
    font-size:12px;
    color:#6b7280;
    text-transform:uppercase;
    letter-spacing:1px;
    margin-bottom:5px;
    font-weight:900;
}

.price strong{
    display:block;
    font-size:34px;
    line-height:1;
    font-weight:900;
    color:#dc2626;
}

.price strong::after{
    content:" VND";
    font-size:13px;
    font-weight:800;
    color:#6b7280;
}

/* BUTTON + FORM */

.btn,
button{
    font-family:'Inter',Arial,sans-serif;
    min-height:50px;
    display:inline-flex;
    align-items:center;
    justify-content:center;
    text-align:center;
    background:linear-gradient(135deg,#ef4444,#dc2626);
    color:#fff;
    text-decoration:none;
    border:none;
    border-radius:16px;
    padding:14px;
    font-size:16px;
    font-weight:900;
    cursor:pointer;
    box-shadow:0 12px 22px rgba(239,68,68,.25);
}

.btn{
    width:100%;
}

.btn:hover,
button:hover{
    filter:brightness(.95);
}

.box{
    background:#fff;
    border-radius:26px;
    padding:26px;
    box-shadow:0 18px 45px rgba(31,41,55,.09);
    margin-top:20px;
}

.back{
    display:inline-block;
    margin:10px 0 15px;
    color:#111827;
    text-decoration:none;
    font-weight:900;
}

label{
    display:block;
    margin:14px 0 6px;
    font-weight:800;
}

input,
select,
textarea{
    width:100%;
    padding:14px;
    border:1px solid #ddd;
    border-radius:15px;
    font-size:15px;
    font-family:'Inter',Arial,sans-serif;
    font-weight:500;
}

textarea{
    min-height:110px;
}

.full{
    margin-top:18px;
}

/* LANGUAGE POPUP */

.lang-overlay{
    position:fixed;
    inset:0;
    background:rgba(0,0,0,.68);
    z-index:99999;
    display:flex;
    align-items:center;
    justify-content:center;
    padding:20px;
}

.lang-box{
    width:100%;
    max-width:360px;
    background:#fff;
    border-radius:24px;
    padding:24px;
    text-align:center;
    box-shadow:0 30px 80px rgba(0,0,0,.35);
}

.globe{
    font-size:38px;
    margin-bottom:8px;
}

.lang-box h2{
    margin-bottom:18px;
    font-size:22px;
    font-weight:900;
}

.lang-grid{
    display:grid;
    grid-template-columns:1fr 1fr;
    gap:10px;
}

.lang-grid a{
    display:block;
    padding:13px;
    background:#f3f4f6;
    border-radius:16px;
    text-decoration:none;
    color:#111827;
    font-weight:900;
    font-size:14px;
}

.lang-grid a:hover{
    background:#ef4444;
    color:#fff;
}

/* REVIEW */

.review-box{
    background:#fff;
    border-radius:28px;
    padding:28px;
    box-shadow:0 15px 35px rgba(15,23,42,.07);
    margin:20px 0 35px;
}

.review-box h2{
    font-size:26px;
    font-weight:900;
    margin-bottom:18px;
}

.review-grid{
    display:grid;
    grid-template-columns:repeat(3,1fr);
    gap:16px;
}

.review-card{
    background:#f8fafc;
    border-radius:20px;
    padding:18px;
    font-weight:700;
}

.review-card div{
    color:#f59e0b;
    font-weight:900;
    margin-bottom:10px;
}

.review-card p{
    color:#334155;
    line-height:1.5;
    margin-bottom:10px;
}

.review-card b{
    color:#111827;
}

/* ALERT */

.success-box{
    background:#dcfce7;
    color:#166534;
    border:1px solid #86efac;
    padding:14px;
    border-radius:14px;
    margin-bottom:15px;
    font-weight:800;
}

.error-box{
    background:#fee2e2;
    color:#991b1b;
    border:1px solid #fecaca;
    padding:14px;
    border-radius:14px;
    margin-bottom:15px;
    font-weight:800;
}

/* FOOTER */

.site-footer{
    margin-top:50px;
    background:#0f172a;
    color:#fff;
    padding:40px 0 20px;
}

.footer-grid{
    display:grid;
    grid-template-columns:repeat(3,1fr);
    gap:40px;
    align-items:flex-start;
}

.footer-col h3,
.footer-col h4{
    color:#fff;
    margin-bottom:12px;
    font-size:22px;
    font-weight:900;
}

.footer-col p{
    margin:8px 0;
    color:#d1d5db;
    line-height:1.7;
    font-size:16px;
}

.footer-col a{
    color:#fff;
    text-decoration:none;
    font-weight:900;
}

.footer-col a:hover{
    color:#fca5a5;
}

.footer-bottom{
    width:100%;
    display:block;
    text-align:center !important;
    border-top:1px solid rgba(255,255,255,.1);
    margin-top:30px;
    padding-top:20px;
    color:#9ca3af;
    font-size:14px;
    clear:both;
}

/* WHATSAPP FLOAT */

.wa-float{
    position:fixed;
    right:20px;
    bottom:20px;
    width:62px;
    height:62px;
    border-radius:50%;
    background:#25d366;
    color:#fff;
    display:flex;
    align-items:center;
    justify-content:center;
    font-size:28px;
    text-decoration:none;
    z-index:9999;
    box-shadow:0 10px 30px rgba(0,0,0,.2);
}

/* MOBILE */

@media(max-width:900px){
    .hero-card{
        grid-template-columns:1fr;
        padding:28px;
    }

    .agent-buttons{
        position:static;
        width:100%;
        margin-bottom:18px;
        flex-direction:column;
    }

    .agent-register-btn,
    .agent-login-btn{
        width:100%;
    }

    .hero-card h1{
        font-size:32px;
    }

    .hero-visual{
        display:none;
    }

    .features-bar{
        grid-template-columns:1fr 1fr;
    }

    .review-grid{
        grid-template-columns:1fr;
    }

    .footer-grid{
        grid-template-columns:1fr;
        text-align:center;
        gap:25px;
    }
}

@media(max-width:600px){
    .lang-grid{
        grid-template-columns:1fr;
    }

    .features-bar{
        grid-template-columns:1fr;
    }

    .plans{
        grid-template-columns:1fr;
    }

    .card{
        border-radius:22px;
    }

    .card h2{
        min-height:auto;
    }

    .price strong{
        font-size:32px;
    }

    .footer-col h3,
    .footer-col h4{
        font-size:20px;
    }

    .footer-col p{
        font-size:15px;
    }
}
/* SEO CONTENT */

.seo-content{
    margin:30px 0;
}

.seo-content .wrap{
    background:#fff;
    border-radius:28px;
    padding:30px;
    box-shadow:0 10px 30px rgba(0,0,0,.06);
}

.seo-content h2{
    font-size:30px;
    margin-bottom:15px;
    font-weight:900;
    color:#111827;
}

.seo-content p{
    line-height:1.8;
    color:#475569;
    margin-bottom:15px;
    font-size:16px;
}

/* FAQ SEO */

.faq-section{
    margin:35px 0;
}

.faq-section h2{
    font-size:30px;
    margin-bottom:20px;
    font-weight:900;
    color:#111827;
}

.faq-item{
    background:#fff;
    border-radius:20px;
    padding:20px;
    margin-bottom:15px;
    box-shadow:0 10px 25px rgba(0,0,0,.05);
}

.faq-item h3{
    font-size:18px;
    margin-bottom:10px;
    color:#111827;
    font-weight:900;
}

.faq-item p{
    color:#475569;
    line-height:1.7;
}