/* <!-- Developer By DEVTANPHAT | TELEGRAM : @USERIAMTP | ZALO.ME/0946743849 | DEVTANPHAT.SITE --> */
:root {
    --bg-color: #121212;
    --card-bg: #1e1e1e;
    --primary: #00f2ea; 
    --secondary: #ff0050; 
    --text-main: #ffffff;
    --text-sub: #b0b0b0;
    --gold: #ffd700;
    --mb-blue: #0068ff;
}

* { margin: 0; padding: 0; box-sizing: border-box; font-family: 'Montserrat', sans-serif; }

body {
    background-color: var(--bg-color);
    color: var(--text-main);
    line-height: 1.6;
    overflow-x: hidden;
}

.container { width: 90%; max-width: 1100px; margin: 0 auto; }
a { text-decoration: none; }


header {
    padding: 15px 0; background: rgba(18, 18, 18, 0.85);
    position: sticky; top: 0; z-index: 100;
    border-bottom: 1px solid rgba(255, 255, 255, 0.05);
    backdrop-filter: blur(15px);
}
.header-content { display: flex; justify-content: center; align-items: center; }


.logo {
    display: flex; align-items: center; gap: 12px;
    cursor: pointer; text-decoration: none; transition: transform 0.3s ease;
}
.logo:hover { transform: scale(1.05); }

.logo-icon {
    font-size: 2rem; color: white;
    filter: drop-shadow(2px 2px 0px var(--secondary)) drop-shadow(-2px -2px 0px var(--primary));
    animation: iconBounce 2s infinite ease-in-out;
}
.logo-text {
    font-size: 1.6rem; font-weight: 900; color: white;
    text-transform: uppercase; letter-spacing: 1px;
    white-space: nowrap; 
    display: flex; gap: 8px;
}
.highlight-text {
    background: linear-gradient(45deg, var(--primary), var(--secondary));
    -webkit-background-clip: text; -webkit-text-fill-color: transparent;
    position: relative;
}
.highlight-text::after {
    content: ''; position: absolute; bottom: -3px; left: 0; width: 100%; height: 2px;
    background: linear-gradient(90deg, var(--primary), var(--secondary));
    box-shadow: 0 0 10px var(--secondary);
}
@keyframes iconBounce { 0%, 100% { transform: translateY(0); } 50% { transform: translateY(-5px); } }


.zalo-floating {
    position: fixed; bottom: 30px; right: 30px; z-index: 9999;
    display: flex; align-items: center; gap: 10px;
    background: white; padding: 5px 20px 5px 5px;
    border-radius: 50px; box-shadow: 0 0 20px rgba(0, 104, 255, 0.4);
    text-decoration: none; transition: all 0.3s ease;
    animation: floatingUp 3s ease-in-out infinite;
}
.zalo-icon-box {
    width: 45px; height: 45px; background: linear-gradient(45deg, #0068ff, #0099ff);
    border-radius: 50%; display: flex; justify-content: center; align-items: center;
    font-size: 1.2rem; color: white; box-shadow: 0 0 0 4px rgba(0, 104, 255, 0.1);
}
.zalo-text { color: #0068ff; font-weight: 800; font-size: 1rem; text-transform: uppercase; }
.zalo-floating:hover { transform: scale(1.05) translateY(-5px); box-shadow: 0 10px 25px rgba(0, 104, 255, 0.6); }
@keyframes floatingUp { 0%, 100% { transform: translateY(0); } 50% { transform: translateY(-8px); } }


.hero { text-align: center; padding: 60px 0 40px; background: radial-gradient(circle at center, #2a2a2a 0%, #121212 70%); }
.hero h1 { font-size: 2.2rem; margin-bottom: 15px; line-height: 1.2; font-weight: 800; }
.highlight { background: -webkit-linear-gradient(45deg, var(--primary), var(--secondary)); -webkit-background-clip: text; -webkit-text-fill-color: transparent; }
.subtitle { color: var(--text-sub); margin-bottom: 20px; padding: 0 10px; }
.trust-badges { display: flex; justify-content: center; gap: 15px; flex-wrap: wrap; }
.trust-badges span { font-size: 0.9rem; color: var(--primary); display: flex; align-items: center; gap: 5px; }

.btn-cta {
    display: inline-block; margin-top: 25px; padding: 15px 35px;
    background: linear-gradient(45deg, var(--secondary), #d60044); color: white;
    font-weight: bold; border-radius: 50px; text-transform: uppercase; letter-spacing: 1px;
    box-shadow: 0 0 20px rgba(255, 0, 80, 0.5); animation: pulse 2s infinite;
}
@keyframes pulse {
    0% { box-shadow: 0 0 0 0 rgba(255, 0, 80, 0.7); }
    70% { box-shadow: 0 0 0 15px rgba(255, 0, 80, 0); }
    100% { box-shadow: 0 0 0 0 rgba(255, 0, 80, 0); }
}


.calculator-section { padding: 50px 0; }
.section-title { text-align: center; margin-bottom: 30px; font-size: 1.8rem; text-transform: uppercase; font-weight: 800; }

.calc-pricing-wrapper { display: grid; grid-template-columns: 3fr 2fr; gap: 30px; align-items: start; }
.calc-box, .pricing-table { background: var(--card-bg); padding: 30px; border-radius: 20px; border: 1px solid rgba(255, 255, 255, 0.1); }
.box-shadow-glow { box-shadow: 0 10px 30px -10px rgba(0, 242, 234, 0.1); }

.calc-box h3, .pricing-table h3 { margin-bottom: 20px; color: var(--primary); display: flex; align-items: center; gap: 10px; font-size: 1.3rem; }


.input-wrapper label { display: block; margin-bottom: 8px; color: var(--text-sub); font-weight: 600; font-size: 0.9rem; }
.modern-input { display: flex; border: 2px solid #333; border-radius: 12px; overflow: hidden; transition: 0.3s; background: #000; }
.modern-input:focus-within { border-color: var(--primary); }
.modern-input input { flex: 1; padding: 14px; border: none; background: transparent; color: white; font-size: 1.2rem; font-weight: 700; outline: none; width: 100%; }
.modern-input .unit { background: #333; padding: 0 20px; display: flex; align-items: center; font-weight: bold; color: var(--text-sub); }

.price-display-box { margin: 20px 0; padding: 12px 15px; background: rgba(255,255,255,0.03); border-radius: 10px; display: flex; justify-content: space-between; align-items: center; border: 1px solid rgba(255,255,255,0.05); }
.rate-value { color: var(--gold); font-weight: 800; font-size: 1.1rem; }


.modern-total {
    background: linear-gradient(135deg, rgba(0,242,234,0.08), rgba(0,0,0,0));
    border: 1px solid rgba(0, 242, 234, 0.5); padding: 30px 20px; border-radius: 12px; margin-bottom: 25px;
    display: flex; flex-direction: column; justify-content: center; align-items: center; text-align: center;
}
.modern-total span { color: var(--text-sub); font-weight: 600; margin-bottom: 5px; font-size: 1rem; }
.modern-total h3 {
    color: var(--primary); font-size: 2.2rem; margin: 0; text-shadow: 0 0 15px rgba(0, 242, 234, 0.6); line-height: 1.2; word-wrap: break-word;
}

.modern-btn { width: 100%; background: linear-gradient(45deg, var(--primary), #00d2cb); color: #000; font-weight: 800; padding: 16px; border: none; border-radius: 12px; font-size: 1.1rem; cursor: pointer; display: flex; justify-content: center; align-items: center; gap: 10px; }


.pricing-item { display: flex; justify-content: space-between; align-items: center; padding: 15px 0; border-bottom: 1px solid rgba(255,255,255,0.1); font-size: 0.95rem; }
.pricing-item:last-child { border-bottom: none; }
.pricing-item .price { font-weight: 800; color: var(--primary); }
.badge { padding: 3px 8px; border-radius: 4px; font-size: 0.7rem; font-weight: bold; margin-left: 5px; vertical-align: middle; }
.popular .badge { background: var(--gold); color: black; }
.best-offer .badge { background: var(--secondary); color: white; }


.process { padding: 60px 0; position: relative; overflow: hidden; }
.glass-effect {
    background: rgba(255, 255, 255, 0.03); backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, 0.08); box-shadow: 0 4px 30px rgba(0, 0, 0, 0.1); transition: all 0.4s ease;
}
.steps-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 20px; position: relative; z-index: 2; }
.step-item { padding: 30px 20px; border-radius: 20px; text-align: center; position: relative; overflow: hidden; }
.step-item:hover { transform: translateY(-10px); border-color: var(--primary); box-shadow: 0 10px 30px -10px rgba(0, 242, 234, 0.15); }
.step-number { position: absolute; top: -10px; right: -5px; font-size: 4rem; font-weight: 900; color: rgba(255, 255, 255, 0.03); z-index: 0; }
.icon-box-glow {
    width: 70px; height: 70px; margin: 0 auto 20px; border-radius: 50%;
    background: linear-gradient(135deg, rgba(30,30,30,1), #000); display: flex; justify-content: center; align-items: center;
    font-size: 1.8rem; color: var(--primary); border: 1px solid rgba(0, 242, 234, 0.3); box-shadow: 0 0 15px rgba(0, 242, 234, 0.1); position: relative; z-index: 1;
}
.step-item:hover .icon-box-glow { background: var(--primary); color: #000; box-shadow: 0 0 25px rgba(0, 242, 234, 0.6); transform: scale(1.1); transition: 0.4s; }
.step-item h3 { font-size: 1.1rem; margin-bottom: 10px; color: white; font-weight: 700; position: relative; z-index: 1; }
.step-item p { font-size: 0.85rem; color: var(--text-sub); line-height: 1.5; position: relative; z-index: 1; }


.testimonials { padding: 60px 0; }
.review-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(300px, 1fr)); gap: 30px; }
.review-card { padding: 30px; border-radius: 20px; position: relative; }
.review-card:hover { transform: translateY(-5px); border-color: var(--gold); box-shadow: 0 10px 30px rgba(255, 215, 0, 0.1); }
.quote-icon { position: absolute; top: 20px; right: 20px; font-size: 2.5rem; color: rgba(255, 255, 255, 0.05); }
.review-header { display: flex; align-items: center; gap: 15px; margin-bottom: 20px; }
.avatar-circle { width: 45px; height: 45px; background: var(--mb-blue); border-radius: 50%; display: flex; justify-content: center; align-items: center; font-weight: 800; color: white; border: 2px solid rgba(255,255,255,0.2); }
.user-info h4 { font-size: 1rem; color: white; margin-bottom: 3px; }
.review-text { color: var(--text-sub); font-style: italic; font-size: 0.9rem; }
.stars { color: var(--gold); font-size: 0.8rem; }


.modal {
    position: fixed; z-index: 1000; left: 0; top: 0;
    width: 100vw; height: 100vh;
    background-color: rgba(0,0,0,0.8); backdrop-filter: blur(5px);
    display: flex; justify-content: center; align-items: center;
    opacity: 0; visibility: hidden; transition: 0.3s; padding: 15px;
}
.modal.show { opacity: 1; visibility: visible; }
.modal-content.demo-style {
    background-color: white; color: #333; padding: 30px; border-radius: 20px;
    width: 100%; max-width: 850px; 
    max-height: 90vh; overflow-y: auto; 
    position: relative; box-shadow: 0 25px 50px rgba(0,0,0,0.5);
    transform: scale(0.9); transition: 0.3s; margin: 0 auto;
}
.modal.show .modal-content.demo-style { transform: scale(1); }
.close-modal { position: absolute; top: 15px; right: 20px; font-size: 30px; color: #888; cursor: pointer; z-index: 10; }
.modal-title { text-align: left; font-size: 1.4rem; margin-bottom: 25px; padding-bottom: 15px; border-bottom: 2px solid #f0f0f0; color: #222; font-weight: 800; }
.modal-body-grid { display: grid; grid-template-columns: 5fr 4fr; gap: 30px; align-items: start; }
.payment-info .info-group { margin-bottom: 20px; }
.payment-info label { display: block; font-size: 0.8rem; color: #888; font-weight: 700; margin-bottom: 5px; }
.payment-info p { font-size: 1.1rem; font-weight: 800; color: #222; margin: 0; word-break: break-word; }
.bank-name { color: var(--mb-blue); font-size: 1.3rem; }
.amount-highlight { color: var(--secondary); font-size: 1.5rem; }
.with-copy { display: flex; justify-content: space-between; align-items: flex-end; gap: 10px; }
.btn-copy { background: #f0f2f5; border: none; padding: 8px 12px; border-radius: 8px; color: #555; font-weight: 600; cursor: pointer; font-size: 0.85rem; white-space: nowrap; }
.qr-container { background: #f8f9fa; padding: 15px; border-radius: 15px; text-align: center; border: 2px dashed #e0e0e0; }
#modalQrImage { width: 100%; height: auto; border-radius: 10px; border: 3px solid white; box-shadow: 0 5px 15px rgba(0,0,0,0.1); }
.qr-guide { margin-top: 10px; color: #666; font-size: 0.85rem; }
.modal-btn { display: flex; justify-content: center; align-items: center; gap: 10px; margin-top: 25px; padding: 18px; font-size: 1.1rem; background: #00c853; color: white; font-weight: 800; border-radius: 12px; width: 100%; text-align: center; }


#notification-area { position: fixed; bottom: 20px; left: 20px; z-index: 999; width: 300px; max-width: 90%; }
.notify-item { background: rgba(30, 30, 30, 0.95); backdrop-filter: blur(10px); padding: 12px 15px; border-radius: 10px; border-left: 4px solid var(--primary); color: white; font-size: 0.85rem; margin-top: 10px; box-shadow: 0 5px 15px rgba(0,0,0,0.5); animation: slideIn 0.5s ease-out, fadeOut 0.5s ease-in 4.5s forwards; display: flex; align-items: center; gap: 10px; }
@keyframes slideIn { from { transform: translateX(-100%); opacity: 0; } to { transform: translateX(0); opacity: 1; } }
@keyframes fadeOut { from { opacity: 1; } to { opacity: 0; } }
footer { text-align: center; padding: 30px 20px; background: #000; color: #666; margin-top: 40px; font-size: 0.9rem; }


.hidden-element { opacity: 0; transform: translateY(50px); filter: blur(5px); transition: all 0.8s cubic-bezier(0.5, 0, 0, 1); }
.hidden-element.show { opacity: 1; transform: translateY(0); filter: blur(0); }


@media (max-width: 992px) {
    .calc-pricing-wrapper { grid-template-columns: 1fr; max-width: 700px; margin: 0 auto; }
    .steps-grid { grid-template-columns: 1fr 1fr; } 
}

@media (max-width: 768px) {
    .container { width: 95%; } 
    .hero { padding: 40px 0; } .hero h1 { font-size: 1.6rem; }
    

    .logo-text { font-size: 1.2rem; }
    .logo-icon { font-size: 1.4rem; }
    

    .zalo-floating { 
        bottom: 20px; 
        right: 15px; 
        padding: 4px 15px 4px 4px; 
        transform: scale(0.9); 
    }
    .zalo-icon-box { width: 40px; height: 40px; font-size: 1rem; }
    .zalo-text { font-size: 0.9rem; }


    #notification-area { 
        left: 10px; 
        bottom: 20px; 
        width: auto; 
        max-width: 55%; 
    }
    
    .notify-item {
        padding: 8px 10px;
        font-size: 0.75rem; 
    }
    
  
    .steps-grid { grid-template-columns: 1fr; }
    .step-item { display: flex; align-items: center; text-align: left; padding: 20px; gap: 15px; }
    .step-number { display: none; }
    .icon-box-glow { margin: 0; width: 50px; height: 50px; font-size: 1.2rem; flex-shrink: 0; }
    
    .modal-content.demo-style { padding: 20px; width: 95%; }
    .modal-body-grid { grid-template-columns: 1fr; gap: 20px; }
    .payment-info { order: 2; } 
    .qr-container { margin: 0 auto; max-width: 250px; }
    
    .modal-title { font-size: 1.2rem; margin-bottom: 20px; }
    .section-title { font-size: 1.4rem; }
}


.welcome-overlay {
    position: fixed; top: 0; left: 0; width: 100%; height: 100%;
    background: rgba(0, 0, 0, 0.7); backdrop-filter: blur(5px);
    z-index: 99999; 
    display: flex; justify-content: center; align-items: center;
    opacity: 0; visibility: hidden; transition: all 0.4s ease;
}

.welcome-overlay.show { opacity: 1; visibility: visible; }

.welcome-box {
    background: #1f1f1f; width: 90%; max-width: 450px;
    border-radius: 16px; padding: 25px;
    box-shadow: 0 10px 40px rgba(0,0,0,0.5);
    transform: scale(0.8); transition: all 0.4s cubic-bezier(0.175, 0.885, 0.32, 1.275);
    border: 1px solid rgba(255,255,255,0.08);
    position: relative;
}

.welcome-overlay.show .welcome-box { transform: scale(1); }


.welcome-header { display: flex; align-items: center; gap: 15px; margin-bottom: 20px; position: relative; }
.bell-icon-wrapper {
    width: 40px; height: 40px; background: rgba(124, 58, 237, 0.15); 
    border-radius: 50%; display: flex; align-items: center; justify-content: center;
}
.bell-icon-wrapper i { color: #8b5cf6; font-size: 1.2rem; } 

.header-text h4 { font-size: 1rem; color: white; margin-bottom: 2px; font-weight: 700; }
.header-text span { font-size: 0.8rem; color: #888; }

.close-welcome {
    position: absolute; right: 0; top: 0; font-size: 1.5rem; color: #666; cursor: pointer; transition: 0.3s;
}
.close-welcome:hover { color: white; }


.welcome-body h2 { font-size: 1.5rem; color: white; line-height: 1.3; margin-bottom: 15px; font-weight: 800; }
.welcome-body p { font-size: 0.95rem; color: #b0b0b0; line-height: 1.6; margin-bottom: 25px; }
.highlight-name { color: white; font-weight: 700; }


.welcome-footer { display: flex; gap: 10px; justify-content: flex-end; }
.btn-mute, .btn-understand {
    padding: 12px 20px; border-radius: 8px; border: none; font-weight: 600; cursor: pointer; font-size: 0.9rem; display: flex; align-items: center; gap: 8px; transition: 0.2s;
}


.btn-mute { background: #333; color: #ccc; }
.btn-mute:hover { background: #444; color: white; }


.btn-understand { background: #ff0050; color: white; box-shadow: 0 4px 15px rgba(255, 0, 80, 0.3); }
.btn-understand:hover { background: #d60044; transform: translateY(-2px); }


@media (max-width: 480px) {
    .welcome-box { padding: 20px; width: 95%; }
    .welcome-body h2 { font-size: 1.3rem; }
    .welcome-footer { flex-direction: row; }
    .btn-mute, .btn-understand { flex: 1; justify-content: center; font-size: 0.8rem; padding: 12px; }
}