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

:root {
    --bg-outside: #f1f5f9; /* Nền xám nhạt cao cấp */
    --bg-page: #ffffff;
    --cf-blue: #1e40af; /* Royal Blue (Xanh Hoàng Gia) - Tuyệt đối Niềm Tin & Thẩm Quyền */
    --cf-red: #b91c1c; /* Đỏ đô - Khẩn cấp nhưng không rẻ tiền */
    --cf-orange: #f97316; /* Cam Gradient - Tối đa hóa tỷ lệ click chuyển đổi */
    --cf-yellow: #fef08a; /* Vàng nhạt - Highlight mềm mại */
    --cf-dark: #0f172a; /* Xanh Slate 900 - Nền tối điềm đạm, sang trọng */
    --text-body: #334155;
    
    --font-heading: 'Montserrat', sans-serif;
    --font-body: 'Inter', sans-serif;
}

* { margin: 0; padding: 0; box-sizing: border-box; scroll-behavior: smooth; }
body { font-family: var(--font-body); background-color: var(--bg-outside); color: var(--text-body); line-height: 1.6; -webkit-font-smoothing: antialiased; }

.page-wrapper { max-width: 1000px; margin: 0 auto; background: var(--bg-page); box-shadow: 0 20px 50px rgba(0,0,0,0.08); position: relative; border-radius: 0 0 12px 12px; overflow: hidden; }

.container { padding: 0 50px; }
.container-sm { max-width: 820px; margin: 0 auto;}
.text-center { text-align: center; }
.bg-light { background: #f8fafc; }
.bg-blue { background: var(--cf-dark); color: white; } /* Dark Navy */

h1, h2, h3, h4, .headline { font-family: var(--font-heading); color: var(--cf-dark); text-wrap: balance; }
p, li, .sub-headline { text-wrap: pretty; }

/* Cập nhật Kích Thước Nhỏ Hơn Cho Headline */
.pre-headline { color: var(--cf-red); font-weight: 800; font-size: 0.95rem; text-transform: uppercase; letter-spacing: 0.5px; margin-bottom: 15px; }
.headline { font-size: clamp(1.6rem, 3.2vw, 2.2rem); line-height: 1.35; margin-bottom: 20px; letter-spacing: -0.5px; }
.headline .highlight { background-color: var(--cf-yellow); padding: 2px 8px; border-radius: 4px; color: var(--cf-dark); display: inline-block; }
.sub-headline { font-size: clamp(1.15rem, 2vw, 1.35rem); color: #475569; margin-bottom: 40px; font-weight: 500; line-height: 1.6; max-width: 850px; margin-left: auto; margin-right: auto; }

.hide-mobile { display: block; }

.section { padding: 45px 0; border-bottom: 1px solid #f1f5f9; }
.section-title { font-size: clamp(2rem, 3vw, 2.5rem); margin-bottom: 25px; letter-spacing: -0.5px; }
.title-underline { width: 60px; height: 5px; background: var(--cf-blue); margin: 0 auto 40px; border-radius: 3px; }
.bg-blue .title-underline { background: #3b82f6; } 

/* Pulse Animation for CTA */
@keyframes pulse-cf {
    0% { transform: scale(1); box-shadow: 0 0 0 0 rgba(249, 115, 22, 0.7); }
    70% { transform: scale(1.02); box-shadow: 0 0 0 15px rgba(249, 115, 22, 0); }
    100% { transform: scale(1); box-shadow: 0 0 0 0 rgba(249, 115, 22, 0); }
}

.btn-cf { display: block; width: 100%; max-width: 680px; margin: 0 auto; background: linear-gradient(180deg, #f97316 0%, #ea580c 100%); color: #ffffff; padding: 22px 20px; border-radius: 8px; border: 1px solid #c2410c; border-bottom: 5px solid #9a3412; text-align: center; text-decoration: none; box-shadow: 0 10px 25px rgba(234, 88, 12, 0.3); cursor: pointer; transition: all 0.2s; animation: pulse-cf 2s infinite; }
.btn-cf:active { transform: translateY(5px); border-bottom-width: 0px; margin-top: 5px; box-shadow: 0 5px 10px rgba(234, 88, 12, 0.2); }
.btn-cf:hover { background: linear-gradient(180deg, #fb923c 0%, #f97316 100%); animation: none; }
.btn-cf-main { font-size: clamp(1.3rem, 2.5vw, 1.6rem); font-weight: 900; font-family: var(--font-heading); text-shadow: 1px 1px 2px rgba(0,0,0,0.2); display: block; text-transform: uppercase; }
.btn-cf-sub { font-size: clamp(0.9rem, 1.5vw, 1.1rem); font-weight: 600; display: block; margin-top: 8px; color: #ffedd5; }

.cf-bullets { list-style: none; max-width: 850px; margin: 0 auto; text-align: left; }
.cf-bullets li { font-size: clamp(1.15rem, 2vw, 1.25rem); margin-bottom: 20px; display: flex; align-items: flex-start; padding: 20px; background: white; border-radius: 8px; box-shadow: 0 3px 10px rgba(0,0,0,0.03); border: 1px solid #e2e8f0; }

/* Trả lại màu Đỏ cho Dấu ✘ Nỗi Đau */
.cf-bullets .check { color: var(--cf-red); font-size: 1.5rem; margin-right: 15px; font-weight: 900; flex-shrink: 0; } 

.alert-box { background: #eff6ff; border: 2px dashed #93c5fd; color: #1e40af; padding: 25px 35px; font-size: clamp(1.2rem, 2vw, 1.35rem); font-weight: 600; border-radius: 8px; margin: 30px auto 0; max-width: 850px; line-height: 1.6; } 

.story-text { font-size: clamp(1.15rem, 2vw, 1.25rem); text-align: left; max-width: 800px; margin: 0 auto; }
.story-text p { margin-bottom: 24px; color: var(--cf-dark); }

.grid-2 { display: grid; grid-template-columns: 1fr 1fr; gap: 40px; }
.feature-card, .proof-card { background: white; padding: 35px; border-radius: 8px; text-align: left; border: 1px solid #e2e8f0; box-shadow: 0 4px 20px rgba(0,0,0,0.03); }
.feature-card h3 { font-size: 1.45rem; margin-bottom: 12px; color: var(--cf-blue); }
.feature-card p { font-size: 1.1rem; color: var(--text-body); }
.feature-card.alt-theme { background-color: rgba(255, 255, 255, 0.05); border: 1px solid rgba(255, 255, 255, 0.15); color: #f1f5f9; box-shadow: none; }
.feature-card.alt-theme h3 { color: #60a5fa; } 
.feature-card.alt-theme p { color: #cbd5e1; }

.proof-card { border-left: 5px solid var(--cf-blue); }

/* Trả lại màu Đỏ Cảnh Báo cho Box Trạng Thái Cũ (Vấn đề / Nỗi Đau) */
.proof-card.before { border-left-color: var(--cf-red); background: #fef2f2; } 
.proof-card.after { border-left-color: #1d4ed8; background: #eff6ff; } 
.proof-status { font-weight: 900; font-family: var(--font-heading); font-size: 1.3rem; margin-bottom: 15px; text-transform: uppercase;}
.proof-card.before .proof-status { color: var(--cf-red); }
.proof-card.after .proof-status { color: #1e40af; }
.proof-card p { font-size: 1.15rem; }

.offer-box { border: 4px dashed var(--cf-blue); background: #f8fafc; padding: 40px 30px; max-width: 850px; margin: 0 auto; border-radius: 12px; } 
.offer-box h2 { color: var(--cf-dark); font-size: clamp(1.8rem, 3vw, 2.4rem); margin-bottom: 30px; }
.offer-list { list-style: none; text-align: left; font-size: clamp(1.15rem, 2vw, 1.25rem); margin-bottom: 40px; }
.offer-list li { border-bottom: 1px dashed #cbd5e1; padding: 16px 0; display: flex; justify-content: space-between; align-items: center; gap: 20px; }
.offer-list .item-name { flex: 1; color: var(--cf-dark); font-weight: 500; }

/* Trả lại màu Đỏ cho Giá Trị Định Giá để nhấn mạnh tính quan trọng */
.offer-list .val { font-weight: 800; font-family: var(--font-heading); color: var(--cf-red); flex-shrink: 0; }

.value-anchor { background: var(--cf-dark); color: white; padding: 20px 25px; font-size: clamp(1.2rem, 2vw, 1.4rem); font-weight: bold; border-radius: 8px; margin-bottom: 30px; }

/* Dấu gạch bỏ giá cũ Màu Đỏ (Bắt buộc trong nguyên lý Giảm Giá) */
.value-anchor .strike { text-decoration: line-through; color: #f87171; margin-left: 10px; }

.today-price { font-size: clamp(3rem, 5vw, 4rem); color: var(--cf-orange); font-family: var(--font-heading); font-weight: 900; line-height: 1; margin: 20px 0;}

.guarantee-box { display: flex; align-items: center; border: 2px solid #e2e8f0; background: white; padding: 35px; max-width: 850px; margin: 35px auto 0; border-radius: 8px; box-shadow: 0 10px 30px rgba(0,0,0,0.05); text-align: left; gap: 30px; }

/* Trả lại Icon Đỏ cho phần Bảo Hành để thu hút niềm tin */
.guarantee-icon { font-size: 4.5rem; line-height: 1; flex-shrink: 0; color: var(--cf-red); }
.guarantee-box h3 { font-size: 1.6rem; margin-bottom: 12px; color: var(--cf-dark);}
.guarantee-box p { color: var(--text-body); font-size: 1.15rem; line-height: 1.7;}

.countdown-banner { background: var(--cf-red); color: white; padding: 15px 20px; text-align: center; }
.countdown-banner h3 { font-size: clamp(1rem, 2vw, 1.15rem); margin-bottom: 12px; letter-spacing: 0.5px; font-weight: bold;}
.countdown { display: flex; justify-content: center; gap: 12px; }
.cnt-box { background: white; color: var(--cf-dark); padding: 8px 12px; border-radius: 6px; font-size: 2rem; font-family: var(--font-heading); font-weight: 900; min-width: 75px; box-shadow: inset 0 3px 6px rgba(0,0,0,0.1); }
.cnt-label { font-size: 0.75rem; color: #64748b; font-family: var(--font-body); font-weight: 800; text-transform: uppercase; margin-top: 2px;}

.form-box { max-width: 650px; margin: 0 auto; background: white; padding: 40px; border: 1px solid #e2e8f0; border-top: 6px solid var(--cf-blue); border-radius: 8px; box-shadow: 0 15px 35px rgba(0,0,0,0.06); text-align: left; }
.form-box label { font-weight: 700; display: block; margin-bottom: 10px; color: var(--cf-dark); font-size: 1.1rem; }
.form-box input { width: 100%; padding: 16px; margin-bottom: 25px; border: 2px solid #cbd5e1; font-size: 1.15rem; border-radius: 6px; font-family: var(--font-body); transition: all 0.3s; background: #f8fafc; }
.form-box input:focus { border-color: var(--cf-blue); background: white; outline: none; box-shadow: 0 0 0 3px rgba(30, 64, 175, 0.2);}

.secure-text { font-size: 1rem; color: #64748b; margin-top: 20px; font-weight: 600; }

/* --------------------------- */
/* CRO Hacks (Testimonial, FAQ, Sticky CTA) */

/* Trust Badges */
.trust-badges { display: flex; justify-content: center; gap: 40px; align-items: center; margin-top: 20px; flex-wrap: wrap; font-size: 1.05rem; font-weight: 800; color: #64748b; }
.trust-badges span { display: flex; align-items: center; gap: 8px; }
.trust-badges span::before { content: "✓"; color: #22c55e; font-size: 1.25rem; font-weight: 900; }

/* Testimonials */
.testimonial-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(300px, 1fr)); gap: 20px; margin-top: 30px; }
.testimonial-card { background: white; padding: 30px 25px; border-radius: 8px; border: 1px solid #e2e8f0; border-top: 5px solid var(--cf-blue); box-shadow: 0 10px 20px rgba(0,0,0,0.03); text-align: left; position: relative; }
.testimonial-quote { font-style: italic; color: var(--text-body); font-size: 1.15rem; margin-bottom: 25px; line-height: 1.6; }
.testimonial-author { display: flex; align-items: center; gap: 15px; }
.testimonial-author img { width: 60px; height: 60px; border-radius: 50%; object-fit: cover; border: 2px solid #e2e8f0; }
.testimonial-author div { font-weight: 800; color: var(--cf-dark); font-size: 1.1rem; }
.testimonial-author span { display: block; font-weight: 500; font-size: 0.95rem; color: var(--cf-blue); margin-top: 2px; }
.stars { color: #eab308; letter-spacing: 3px; margin-bottom: 15px; font-size: 1.3rem; }

/* FAQ */
.faq-list { max-width: 800px; margin: 0 auto; text-align: left; }
.faq-item { background: white; margin-bottom: 20px; border-radius: 8px; border: 1px solid #e2e8f0; padding: 30px; box-shadow: 0 3px 10px rgba(0,0,0,0.02); }
.faq-q { font-weight: 800; color: var(--cf-dark); font-size: 1.25rem; margin-bottom: 15px; font-family: var(--font-heading); display: flex; gap: 12px; align-items: flex-start;}
.faq-q .q-mark { color: var(--cf-red); font-size: 1.6rem; line-height: 1; }
.faq-a { color: var(--text-body); font-size: 1.15rem; line-height: 1.7; padding-left: 28px; }

/* Sticky Mobile CTA */
.sticky-cta { position: fixed; bottom: 0; left: 0; width: 100%; background: white; padding: 12px 15px; box-shadow: 0 -5px 20px rgba(0,0,0,0.15); display: none; z-index: 999; border-top: 3px solid var(--cf-blue); text-align: center; }
.sticky-cta .btn-cf { padding: 14px 10px; max-width: 400px; margin: 0 auto; animation: pulse-cf 2s infinite; }
.sticky-cta .btn-cf-main { font-size: clamp(1.05rem, 4vw, 1.25rem); letter-spacing: -0.5px; }
.sticky-cta .btn-cf-sub { display: none; }

@media (max-width: 768px) {
    .hide-mobile { display: none !important; }
    .container { padding: 0 20px; }
    .grid-2 { grid-template-columns: 1fr; gap: 20px; }
    .guarantee-box { flex-direction: column; text-align: center; }
    .offer-list li { flex-direction: column; gap: 8px; align-items: flex-start; text-align: left; }
    .offer-box { padding: 30px 20px; }
    .form-box { padding: 30px 20px; }
    .sticky-cta { display: block; }
    body { padding-bottom: 100px; }
}

/* --------------------------- */
/* Popup Modal Options */
.modal-overlay { display: none; position: fixed; top: 0; left: 0; width: 100%; height: 100%; background: rgba(0,0,0,0.85); z-index: 9999; justify-content: center; align-items: flex-start; opacity: 0; transition: opacity 0.4s ease; backdrop-filter: blur(5px); overflow-y: auto; padding: 40px 10px; box-sizing: border-box; }
.modal-overlay.show { display: flex; opacity: 1; }
.modal-content { background: white; width: 100%; max-width: 480px; border-radius: 12px; overflow: hidden; position: relative; transform: translateY(40px); transition: transform 0.4s cubic-bezier(0.175, 0.885, 0.32, 1.275); box-shadow: 0 25px 50px rgba(0,0,0,0.5); border: 4px solid var(--cf-blue); margin: auto; }
.modal-overlay.show .modal-content { transform: translateY(0); }
.close-modal { position: absolute; top: 12px; right: 20px; font-size: 32px; cursor: pointer; color: white; font-weight: bold; line-height: 1; z-index: 10; opacity: 0.8;}
.close-modal:hover { opacity: 1; }
.modal-header { background: linear-gradient(135deg, var(--cf-dark) 0%, #1e40af 100%); color: white; text-align: center; padding: 20px 15px 15px; }
.modal-header h2 { font-size: 1.25rem; color: #fbbf24; font-weight: 900; margin-bottom: 12px; letter-spacing: 0.5px; font-family: var(--font-heading); }
.modal-timer { font-size: 1.2rem; font-weight: 900; color: white; background: var(--cf-red); display: inline-block; padding: 6px 18px; border-radius: 30px; letter-spacing: 1px;}
.modal-body { padding: 20px 20px; text-align: center; }
.modal-body p { font-size: 1.05rem; color: #334155; margin-bottom: 20px; line-height: 1.5; }
.popup-form input { width: 100%; margin-bottom: 15px; padding: 15px; font-size: 1.05rem; border: 2px solid #cbd5e1; border-radius: 6px; font-family: var(--font-body); }
.popup-form input:focus { border-color: var(--cf-blue); outline: none; }
/* --------------------------- */
/* FOMO Notifications */
.fomo-notification { position: fixed; bottom: 85px; left: 20px; background: rgba(255, 255, 255, 0.9); backdrop-filter: blur(10px); -webkit-backdrop-filter: blur(10px); border: 1px solid rgba(255, 255, 255, 0.3); padding: 12px 18px; border-radius: 12px; box-shadow: 0 10px 25px rgba(0,0,0,0.1); display: flex; align-items: center; gap: 12px; z-index: 1000; transform: translateX(-120%); transition: transform 0.6s cubic-bezier(0.175, 0.885, 0.32, 1.275); max-width: 320px; pointer-events: none; border-left: 5px solid var(--cf-blue); }
.fomo-notification.show { transform: translateX(0); }
.fomo-avatar { width: 45px; height: 45px; border-radius: 50%; background: var(--bg-outside); display: flex; align-items: center; justify-content: center; font-weight: 800; color: var(--cf-blue); font-size: 1.2rem; flex-shrink: 0; border: 2px solid white; }
.fomo-content { font-size: 0.9rem; line-height: 1.4; color: var(--cf-dark); }
.fomo-content b { color: var(--cf-blue); }
.fomo-time { font-size: 0.75rem; color: #94a3b8; display: block; margin-top: 2px; }

@media (max-width: 768px) {
    .fomo-notification { bottom: 120px; left: 10px; right: 10px; max-width: none; }
}

/* Upsell Box (Order Bump) */
.upsell-box { background: #fffbeb; border: 2px dashed #f59e0b; padding: 12px; border-radius: 8px; margin-bottom: 15px; text-align: left; }
.upsell-box label { display: flex; align-items: flex-start; gap: 10px; cursor: pointer; user-select: none; }
.upsell-box input[type="checkbox"] { width: 20px; height: 20px; margin-top: 3px; cursor: pointer; flex-shrink: 0; accent-color: var(--cf-blue); }
.upsell-box .upsell-text { font-size: 0.9rem; line-height: 1.35; color: var(--cf-dark); }
.upsell-box b { color: var(--cf-blue); display: block; margin-bottom: 3px; font-size: 0.95rem; }
.upsell-box .upsell-price { color: var(--cf-red); font-weight: 800; font-size: 1rem; }

/* Brand Benefits Grid */
.benefits-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(300px, 1fr)); gap: 20px; margin-top: 40px; }
.benefit-card { background: white; padding: 30px 25px; border-radius: 12px; border: 1px solid #e2e8f0; text-align: left; transition: all 0.3s ease; box-shadow: 0 4px 6px -1px rgba(0,0,0,0.05); }
.benefit-card:hover { transform: translateY(-5px); border-color: var(--cf-blue); box-shadow: 0 20px 25px -5px rgba(0,0,0,0.1); }
.benefit-card .benefit-icon { font-size: 2.5rem; margin-bottom: 15px; display: block; }
.benefit-card h4 { font-size: 1.25rem; color: var(--cf-dark); margin-bottom: 12px; font-weight: 800; line-height: 1.3; }
.benefit-card p { font-size: 1rem; color: #475569; margin-bottom: 0; line-height: 1.6; }
.benefit-card .benefit-highlight { color: var(--cf-blue); font-weight: 700; display: block; margin-top: 10px; font-size: 0.9rem; text-transform: uppercase; }

/** 
 * (2) Mobile Refinements 
 */
@media (max-width: 480px) {
    .benefit-card { padding: 20px 15px; }
    .benefit-card h4 { font-size: 1.15rem; }
    .benefit-card .benefit-icon { font-size: 2rem; }
}