/* Sales Notifications */
.sales-notifications {
    position: fixed;
    top: 20px;
    right: 20px;
    z-index: 1000;
    max-width: 300px;
}

.sales-notification {
    background: white;
    border-radius: 12px;
    padding: 15px;
    margin-bottom: 10px;
    box-shadow: 0 8px 25px rgba(0, 0, 0, 0.15);
    border-left: 4px solid #16a34a;
    animation: slideIn 0.5s ease-out;
    font-family: 'Inter', sans-serif;
    font-size: 0.9rem;
    line-height: 1.4;
}

.sales-notification.hide {
    animation: slideOut 0.5s ease-out forwards;
}

.notification-content {
    display: flex;
    align-items: flex-start;
    gap: 10px;
}

.notification-icon {
    color: #16a34a;
    font-size: 1.2rem;
    margin-top: 2px;
    flex-shrink: 0;
}

.notification-text {
    flex: 1;
}

.notification-name {
    font-weight: 600;
    color: #1f2937;
    margin-bottom: 2px;
}

.notification-details {
    color: #6b7280;
    font-size: 0.85rem;
}

.notification-package {
    font-weight: 500;
    color: #16a34a;
}

@keyframes slideIn {
    from {
        transform: translateX(100%);
        opacity: 0;
    }
    to {
        transform: translateX(0);
        opacity: 1;
    }
}

@keyframes slideOut {
    from {
        transform: translateX(0);
        opacity: 1;
    }
    to {
        transform: translateX(100%);
        opacity: 0;
    }
}

@media (max-width: 768px) {
    .sales-notifications {
        top: 10px;
        right: 10px;
        max-width: 280px;
    }
    
    .sales-notification {
        padding: 12px;
        font-size: 0.85rem;
    }
}

/* Reset and Base Styles */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
    font-size: 16px; /* Base font size for rem calculations */
}

body {
    font-family: 'Inter', sans-serif;
    line-height: 1.6;
    color: #2d3748;
    background-color: #f7fafc;
    -webkit-text-size-adjust: 100%; /* Prevent iOS text size adjustment */
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 clamp(15px, 4vw, 20px);
    width: 100%;
}

/* Typography */
h1, h2, h3, h4, h5, h6 {
    font-family: 'Poppins', sans-serif;
    font-weight: 700;
    line-height: 1.3;
    margin-bottom: 1rem;
}

h1 {
    font-size: clamp(1.8rem, 4vw, 3rem);
}

h2 {
    font-size: clamp(1.5rem, 3vw, 2.5rem);
}

h3 {
    font-size: clamp(1.2rem, 2.5vw, 1.8rem);
}

p {
    font-size: clamp(1rem, 2.5vw, 1.1rem);
    margin-bottom: 1rem;
    max-width: 65ch; /* Optimal reading width */
}

/* Buttons */
.cta-button {
    font-family: 'Poppins', sans-serif;
    font-weight: 600;
    font-size: clamp(0.95rem, 2.5vw, 1.1rem);
    padding: clamp(12px, 3vw, 16px) clamp(20px, 5vw, 32px);
    border: none;
    border-radius: 8px;
    cursor: pointer;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    transition: all 0.3s ease;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.2);
    text-decoration: none;
    width: 100%;
    max-width: 500px;
    min-height: 48px; /* Touch target minimum for accessibility */
    display: flex;
    align-items: center;
    justify-content: center;
}

.cta-button.primary {
    background: linear-gradient(135deg, #dc2626, #b91c1c);
    color: white;
}

.cta-button.primary:hover {
    background: linear-gradient(135deg, #b91c1c, #991b1b);
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(220, 38, 38, 0.4);
}

.cta-button.green {
    background: linear-gradient(135deg, #059669, #047857);
    color: white;
}

.cta-button.green:hover {
    background: linear-gradient(135deg, #047857, #065f46);
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(5, 150, 105, 0.4);
}

.cta-button.basic-style {
    background: #16a34a;
    color: white;
}

.cta-button.basic-style:hover {
    background: #15803d;
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(22, 163, 74, 0.4);
}

/* Hero Section */
.hero {
    background: linear-gradient(135deg, #667eea, #5a67d8);
    color: white;
    padding: clamp(40px, 8vh, 80px) 0;
    min-height: clamp(70vh, 90vh, 100vh);
    display: flex;
    align-items: center;
}

.hero-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: clamp(20px, 5vw, 40px);
    align-items: center;
}

@media (max-width: 768px) {
    .hero-content {
        grid-template-columns: 1fr;
        text-align: center;
        gap: clamp(20px, 4vw, 30px);
    }
}

.hero-headline {
    margin-bottom: 20px;
    color: #fde047; /* Light yellow color */
}

.highlight {
    color: #fbbf24;
    font-weight: 700;
}

.hero-subheadline {
    font-size: clamp(1rem, 3vw, 1.3rem);
    margin-bottom: clamp(20px, 4vw, 30px);
    opacity: 0.9;
    line-height: 1.4;
}

.hero-badges {
    display: flex;
    flex-wrap: wrap;
    gap: clamp(10px, 3vw, 15px);
    margin: clamp(20px, 4vw, 30px) 0;
    justify-content: flex-start;
}

@media (max-width: 768px) {
    .hero-badges {
        justify-content: center;
    }
}

.badge {
    display: flex;
    align-items: center;
    gap: 8px;
    background: rgba(255, 255, 255, 0.1);
    padding: clamp(6px, 2vw, 8px) clamp(12px, 3vw, 16px);
    border-radius: 25px;
    font-size: clamp(0.8rem, 2vw, 0.9rem);
    backdrop-filter: blur(10px);
    white-space: nowrap;
}

.badge i {
    color: #fbbf24;
}

.hero-image img {
    width: 100%;
    height: auto;
    border-radius: 12px;
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.3);
}

.hero-cta-container {
    text-align: center;
    margin-top: 40px;
}

/* Problems Section */
.problems {
    padding: clamp(40px, 8vh, 80px) 0;
    background: #edf2f7;
}

.section-title {
    text-align: center;
    margin-bottom: 50px;
    color: #2d3748;
}

.problems-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: clamp(20px, 4vw, 30px);
}

@media (max-width: 768px) {
    .problems-grid {
        grid-template-columns: 1fr;
    }
}

.problem-item {
    display: flex;
    align-items: flex-start;
    gap: clamp(10px, 3vw, 15px);
    padding: clamp(15px, 4vw, 25px);
    background: #fef2f2;
    border-radius: 12px;
    border-left: 4px solid #dc2626;
}

.problem-icon {
    color: #dc2626;
    font-size: 1.2rem;
    margin-top: 2px;
    flex-shrink: 0;
}

.problem-item p {
    margin: 0;
    font-weight: 500;
}

/* Solution Section */
.solution {
    padding: clamp(40px, 8vh, 80px) 0;
    background: white;
}

.solution-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
    gap: clamp(20px, 4vw, 30px);
}

@media (max-width: 768px) {
    .solution-grid {
        grid-template-columns: 1fr;
    }
}

.solution-item {
    text-align: center;
    padding: clamp(20px, 4vw, 30px);
    background: white;
    border-radius: 12px;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.1);
    transition: transform 0.3s ease;
}

.solution-item:hover {
    transform: translateY(-5px);
}

.solution-icon {
    color: #16a34a;
    font-size: 2rem;
    margin-bottom: 15px;
}

.solution-item h3 {
    color: #2d3748;
    margin-bottom: 15px;
}

.solution-item p {
    color: #6b7280;
    margin: 0;
}

/* Authority Section */
.authority {
    padding: clamp(40px, 8vh, 80px) 0 clamp(20px, 4vh, 20px) 0;
    background: #edf2f7;
}

.authority-content {
    display: grid;
    grid-template-columns: clamp(250px, 25vw, 300px) 1fr;
    gap: clamp(30px, 6vw, 50px);
    align-items: center;
}

@media (max-width: 768px) {
    .authority-content {
        grid-template-columns: 1fr;
        text-align: center;
        gap: clamp(20px, 4vw, 30px);
    }
}

.author-image img {
    width: 100%;
    height: clamp(250px, 30vw, 300px);
    object-fit: cover;
    border-radius: 12px;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.2);
    max-width: 300px;
    margin: 0 auto;
    display: block;
}

.profession {
    color: #667eea;
    font-size: clamp(1rem, 2.5vw, 1.1rem);
    font-weight: 600;
    margin: 10px 0;
    opacity: 0.9;
}

.credentials {
    display: flex;
    flex-wrap: wrap;
    gap: clamp(15px, 3vw, 20px);
    margin: clamp(15px, 3vw, 20px) 0;
    justify-content: flex-start;
}

@media (max-width: 768px) {
    .credentials {
        justify-content: center;
    }
}

.credential {
    display: flex;
    align-items: center;
    gap: 8px;
    color: #667eea;
    font-weight: 500;
    font-size: clamp(0.9rem, 2vw, 1rem);
}

.testimonial {
    background: #f7fafc;
    padding: clamp(20px, 4vw, 25px);
    border-radius: 12px;
    border-left: 4px solid #667eea;
    font-style: italic;
    margin: clamp(20px, 4vw, 30px) 0;
    font-size: clamp(1rem, 2.5vw, 1.1rem);
    line-height: 1.5;
}

.results-numbers {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(120px, 1fr));
    gap: clamp(15px, 3vw, 20px);
    margin-top: clamp(20px, 4vw, 30px);
}

@media (max-width: 768px) {
    .results-numbers {
        grid-template-columns: 1fr;
        max-width: 300px;
        margin-left: auto;
        margin-right: auto;
    }
}

.result-card {
    text-align: center;
    padding: clamp(15px, 3vw, 20px);
    background: linear-gradient(135deg, #667eea, #5a67d8);
    color: white;
    border-radius: 12px;
}

.result-card .number {
    display: block;
    font-size: clamp(1.5rem, 4vw, 2rem);
    font-weight: 700;
    font-family: 'Poppins', sans-serif;
}

.result-card .label {
    font-size: clamp(0.8rem, 2vw, 0.9rem);
    opacity: 0.9;
}

/* Offer Section */
.offer {
    padding: clamp(40px, 8vh, 80px) 0;
    background: white;
    color: #2d3748;
}

.offer .section-title {
    color: #2d3748;
}

.offer-stack {
    max-width: 600px;
    margin: 0 auto;
}

.main-product, .bonus-item {
    background: #edf2f7;
    padding: clamp(20px, 4vw, 25px);
    border-radius: 12px;
    margin-bottom: clamp(10px, 2vw, 15px);
    border: 1px solid #e2e8f0;
}

.main-product {
    border: 2px solid #667eea;
}

.main-product h3, .bonus-item h4 {
    margin-bottom: 10px;
}

.value {
    font-size: clamp(1.1rem, 2.5vw, 1.2rem);
    font-weight: 600;
    color: #667eea;
    text-align: right;
}

.total-value {
    text-align: center;
    padding: clamp(20px, 4vw, 30px);
    background: #edf2f7;
    border-radius: 12px;
    margin-top: clamp(20px, 4vw, 30px);
    border: 1px solid #e2e8f0;
}

.original-price {
    font-size: 1.2rem;
    margin-bottom: 10px;
}

.strikethrough {
    text-decoration: line-through;
    color: #9ca3af;
}

.special-price {
    font-size: clamp(1.5rem, 4vw, 2rem);
    font-weight: 700;
    font-family: 'Poppins', sans-serif;
    margin-bottom: 10px;
}

.price {
    color: #667eea;
}

.installments {
    font-size: 1.1rem;
    color: #d1d5db;
}

/* Urgency Section */
.urgency {
    padding: clamp(40px, 8vh, 60px) 0;
    background: #dc2626;
    color: white;
    text-align: center;
}

.urgency h2 {
    color: white;
    margin-bottom: 30px;
}

.countdown-container {
    margin: 40px 0;
}

.countdown-text {
    font-size: clamp(1.1rem, 3vw, 1.3rem);
    margin-bottom: clamp(15px, 3vw, 20px);
}

.countdown {
    display: flex;
    justify-content: center;
    gap: clamp(15px, 4vw, 30px);
    margin-bottom: clamp(30px, 5vw, 40px);
    flex-wrap: wrap;
}

@media (max-width: 480px) {
    .countdown {
        flex-direction: column;
        align-items: center;
        gap: 10px;
    }
}

.time-unit {
    background: rgba(255, 255, 255, 0.1);
    padding: clamp(15px, 3vw, 20px);
    border-radius: 12px;
    min-width: clamp(70px, 15vw, 80px);
    backdrop-filter: blur(10px);
}

@media (max-width: 480px) {
    .time-unit {
        width: clamp(100px, 25vw, 120px);
        padding: 10px;
    }
}

.time-value {
    display: block;
    font-size: clamp(1.8rem, 5vw, 2.5rem);
    font-weight: 700;
    font-family: 'Poppins', sans-serif;
}

.time-label {
    font-size: clamp(0.8rem, 2vw, 0.9rem);
    opacity: 0.9;
}

.urgency-cta {
    background: white !important;
    color: #dc2626 !important;
}

.urgency-cta:hover {
    background: #f9fafb !important;
    color: #b91c1c !important;
}

/* Guarantee Section */
.guarantee {
    padding: clamp(30px, 6vh, 40px) 0;
    background: #edf2f7;
}

.guarantee-content {
    display: grid;
    grid-template-columns: clamp(120px, 20vw, 140px) 1fr;
    gap: clamp(20px, 4vw, 30px);
    align-items: center;
}

@media (max-width: 768px) {
    .guarantee-content {
        grid-template-columns: 1fr;
        text-align: center;
        gap: 20px;
    }
}

.guarantee-seal {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    width: clamp(100px, 20vw, 120px);
    height: clamp(100px, 20vw, 120px);
    background: linear-gradient(135deg, #16a34a, #15803d);
    color: white;
    border-radius: 50%;
    text-align: center;
    margin: 0 auto;
}

.guarantee-seal i {
    font-size: clamp(1.5rem, 4vw, 2rem);
    margin-bottom: 8px;
}

.guarantee-text {
    font-family: 'Poppins', sans-serif;
    font-weight: 700;
    line-height: 1.2;
}

.payment-security {
    margin-top: 30px;
}

.security-badges {
    display: flex;
    gap: 15px;
    margin-top: 15px;
}

.security-badges i {
    font-size: 2rem;
    color: #16a34a;
}

/* Testimonials Section */
.testimonials {
    padding: 80px 0 20px 0;
    background: #f7fafc;
}

.section-subtitle.centered {
    text-align: center;
    max-width: 600px;
    margin: 0 auto 40px auto;
}

.testimonials-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
    gap: clamp(15px, 3vw, 25px);
    margin: clamp(20px, 4vw, 40px) 0;
    max-width: 1200px;
    margin-left: auto;
    margin-right: auto;
}

@media (max-width: 768px) {
    .testimonials-grid {
        grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
    }
}

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

.testimonial-card {
    background: white;
    border-radius: 12px;
    padding: 20px;
    box-shadow: 0 3px 15px rgba(0, 0, 0, 0.08);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.testimonial-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.15);
}

.testimonial-content {
    margin-bottom: 25px;
}

.testimonial-content p {
    font-style: italic;
    font-size: 1rem;
    line-height: 1.6;
    color: #4a5568;
    margin: 0;
}

.testimonial-author {
    display: flex;
    justify-content: space-between;
    align-items: center;
    border-top: 1px solid #e2e8f0;
    padding-top: 20px;
    gap: 15px;
}

.author-photo {
    width: 50px;
    height: 50px;
    border-radius: 50%;
    object-fit: cover;
    border: 2px solid #e2e8f0;
    flex-shrink: 0;
}

.author-info h4 {
    font-size: 1.1rem;
    font-weight: 600;
    color: #2d3748;
    margin: 0 0 5px 0;
}

.author-info span {
    font-size: 0.9rem;
    color: #718096;
}

.rating {
    display: flex;
    gap: 3px;
}

.rating i {
    color: #fbbf24;
    font-size: 1rem;
}

.testimonials-stats {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 30px;
    margin-top: 60px;
    padding-top: 40px;
    border-top: 2px solid #e2e8f0;
}

.stat-item {
    text-align: center;
}

.stat-number {
    display: block;
    font-size: 2.5rem;
    font-weight: 700;
    color: #667eea;
    margin-bottom: 5px;
}

.stat-label {
    font-size: 1.1rem;
    color: #4a5568;
    font-weight: 500;
}

/* FAQ Section */
.faq {
    padding: clamp(40px, 8vh, 80px) 0;
    background: white;
}

.faq-container {
    max-width: 800px;
    margin: 0 auto;
}

.faq-item {
    background: white;
    border-radius: 12px;
    margin-bottom: 15px;
    overflow: hidden;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
}

.faq-question {
    width: 100%;
    padding: clamp(20px, 4vw, 25px);
    background: none;
    border: none;
    text-align: left;
    font-size: clamp(1rem, 2.5vw, 1.1rem);
    font-weight: 600;
    cursor: pointer;
    display: flex;
    justify-content: space-between;
    align-items: center;
    transition: background-color 0.3s ease;
    min-height: 48px; /* Touch target */
}

.faq-question:hover {
    background: #edf2f7;
}

.faq-question i {
    color: #667eea;
    transition: transform 0.3s ease;
}

.faq-answer {
    padding: 0 clamp(20px, 4vw, 25px);
    max-height: 0;
    overflow: hidden;
    transition: all 0.3s ease;
}

.faq-answer.open {
    max-height: 200px;
    padding: clamp(20px, 4vw, 25px);
}

/* Qualification Section */
.qualification {
    padding: clamp(40px, 8vh, 80px) 0;
    background: #edf2f7;
}

.qualification-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: clamp(25px, 5vw, 40px);
    margin-top: clamp(30px, 5vw, 40px);
}

@media (max-width: 768px) {
    .qualification-grid {
        grid-template-columns: 1fr;
        gap: 20px;
    }
}

.qualification-column {
    padding: clamp(20px, 4vw, 30px);
    border-radius: 12px;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.1);
}

.is-for {
    background: #f0fdf4;
    border-left: 4px solid #16a34a;
}

.not-for {
    background: #fef2f2;
    border-left: 4px solid #dc2626;
}

.qualification-column h3 {
    margin-bottom: clamp(15px, 3vw, 20px);
    font-size: clamp(1.1rem, 2.5vw, 1.3rem);
}

.is-for h3 i {
    color: #16a34a;
}

.not-for h3 i {
    color: #dc2626;
}

.qualification-column ul {
    list-style: none;
}

.qualification-column li {
    padding: clamp(8px, 2vw, 10px) 0;
    border-bottom: 1px solid rgba(0, 0, 0, 0.1);
    font-size: clamp(0.95rem, 2vw, 1rem);
    line-height: 1.5;
}

.qualification-column li:last-child {
    border-bottom: none;
}

/* Book Info Section */
.qualification-content {
    text-align: center;
    max-width: 800px;
    margin: 30px auto 0;
}

.qualification-image {
    display: flex;
    justify-content: center;
    align-items: center;
    margin-bottom: 20px;
}

.qualification-image img {
    width: clamp(350px, 45vw, 420px);
    height: auto;
    border-radius: 12px;
    box-shadow: 0 8px 25px rgba(0, 0, 0, 0.15);
    transition: transform 0.3s ease;
}

.qualification-image img:hover {
    transform: scale(1.05);
}

.qualification .book-description {
    display: flex;
    align-items: center;
    justify-content: center;
    text-align: center;
}

.qualification .book-description p {
    font-size: clamp(1.1rem, 2.5vw, 1.3rem);
    line-height: 1.6;
    color: #4a5568;
    margin: 0;
    padding: 0 20px;
}

/* Book Content Checklist */
.book-content-checklist {
    max-width: 700px;
    margin: 40px auto 0;
    text-align: left;
}

.book-content-checklist h3 {
    font-size: clamp(1.4rem, 3vw, 1.8rem);
    color: #2d3748;
    text-align: center;
    margin-bottom: 25px;
    font-weight: 700;
}

.checklist {
    list-style: none;
    padding: 0;
    margin: 0;
}

.checklist li {
    display: flex;
    align-items: flex-start;
    margin-bottom: 15px;
    padding: 12px 15px;
    background: #f8fafc;
    border-radius: 8px;
    border-left: 4px solid #667eea;
    transition: all 0.3s ease;
}

.checklist li:hover {
    background: #edf2f7;
    transform: translateX(5px);
}

.check-icon {
    color: #38a169;
    font-weight: bold;
    font-size: 1.1rem;
    margin-right: 12px;
    margin-top: 2px;
    flex-shrink: 0;
}

.checklist span {
    font-size: clamp(1rem, 2.2vw, 1.1rem);
    line-height: 1.5;
    color: #4a5568;
}

/* Final CTA Section */
.final-cta {
    padding: clamp(50px, 10vh, 80px) 0;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    text-align: center;
}

.final-cta h2 {
    font-size: clamp(1.8rem, 5vw, 2.5rem);
    margin-bottom: clamp(15px, 3vw, 20px);
    font-weight: 700;
    color: white;
    line-height: 1.2;
}

.final-message {
    font-size: clamp(1.1rem, 2.5vw, 1.2rem);
    margin-bottom: clamp(30px, 6vw, 50px);
    line-height: 1.6;
    max-width: 600px;
    margin-left: auto;
    margin-right: auto;
}

.offers-container {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: clamp(20px, 4vw, 30px);
    max-width: 900px;
    margin: 0 auto;
}

@media (max-width: 768px) {
    .offers-container {
        grid-template-columns: 1fr;
        max-width: 100%;
    }
}

.offer-card {
    background: white;
    border-radius: 20px;
    padding: clamp(20px, 4vw, 30px);
    color: #2d3748;
    position: relative;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.2);
    transition: transform 0.3s ease;
}

.offer-card:hover {
    transform: translateY(-5px);
}

.offer-card.premium {
    border: 3px solid #fbbf24;
    transform: scale(1.05);
}

.offer-card.premium:hover {
    transform: scale(1.05) translateY(-5px);
}

.popular-badge {
    position: absolute;
    top: -12px;
    left: 50%;
    transform: translateX(-50%);
    background: #fbbf24;
    color: #1f2937;
    padding: 8px 20px;
    border-radius: 20px;
    font-weight: 700;
    font-size: 0.9rem;
}

.offer-header h3 {
    font-size: clamp(1.3rem, 3vw, 1.5rem);
    font-weight: 700;
    margin-bottom: clamp(15px, 3vw, 20px);
    color: #667eea;
}

.offer-card.premium .offer-header h3 {
    margin-top: 15px;
}

.price-section {
    margin-bottom: clamp(20px, 4vw, 25px);
}

.old-price {
    font-size: clamp(0.95rem, 2vw, 1rem);
    color: #9ca3af;
    text-decoration: line-through;
    display: block;
    margin-bottom: 5px;
}

.current-price {
    font-size: clamp(1.8rem, 4vw, 2.2rem);
    font-weight: 700;
    color: #16a34a;
    display: block;
    margin-bottom: 5px;
}

.discount {
    background: #dc2626;
    color: white;
    padding: 4px 12px;
    border-radius: 15px;
    font-size: 0.85rem;
    font-weight: 600;
}

.offer-content h4 {
    font-size: 1.1rem;
    font-weight: 600;
    margin-bottom: 15px;
    color: #374151;
}

.offer-benefits {
    list-style: none;
    padding: 0;
    margin: 0 0 clamp(20px, 4vw, 25px) 0;
    text-align: left;
}

.offer-benefits li {
    padding: clamp(6px, 2vw, 8px) 0;
    font-size: clamp(0.9rem, 2vw, 0.95rem);
    display: flex;
    align-items: center;
    gap: 10px;
}

.offer-benefits li i {
    color: #16a34a;
    font-size: 1rem;
}

.offer-benefits li.bonus {
    color: #667eea;
    font-weight: 500;
}

.offer-benefits li.bonus i {
    color: #fbbf24;
}

.basic-offer-btn {
    background: #16a34a;
    color: white;
    border: none;
    padding: clamp(12px, 3vw, 15px) clamp(16px, 4vw, 20px);
    border-radius: 10px;
    font-weight: 600;
    font-size: clamp(0.95rem, 2.5vw, 1rem);
    width: 100%;
    cursor: pointer;
    transition: background 0.3s ease;
    min-height: 48px;
}

.basic-offer-btn:hover {
    background: #15803d;
}

.premium-offer-btn {
    background: #16a34a;
    color: white;
    border: none;
    padding: 15px 20px;
    border-radius: 10px;
    font-weight: 600;
    font-size: 1rem;
    width: 100%;
    cursor: pointer;
    transition: background 0.3s ease;
}

.premium-offer-btn:hover {
    background: #15803d;
}

.social-proof {
    margin-top: 15px;
    font-size: 0.9rem;
    color: #6b7280;
    font-style: italic;
}

/* Mobile Sticky CTA */
.mobile-sticky-cta {
    position: fixed;
    bottom: 0;
    left: 0;
    right: 0;
    padding: clamp(12px, 3vw, 15px) clamp(15px, 4vw, 20px);
    background: white;
    box-shadow: 0 -4px 15px rgba(0, 0, 0, 0.2);
    z-index: 1000;
    display: none;
}

.mobile-sticky-cta .cta-button {
    font-size: clamp(0.95rem, 2.5vw, 1rem);
    padding: clamp(10px, 3vw, 12px) clamp(16px, 4vw, 20px);
    min-height: 48px;
}

/* Animations */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.fade-in {
    animation: fadeInUp 0.6s ease-out;
}

/* Responsive Design */
@media (max-width: 1024px) {
    .hero-content,
    .authority-content,
    .guarantee-content {
        grid-template-columns: 1fr;
        gap: 30px;
        text-align: center;
    }
    
    .qualification-grid {
        grid-template-columns: 1fr;
        gap: 20px;
    }
    
    .qualification .hero-content {
        grid-template-columns: 1fr;
        gap: 25px;
        text-align: center;
    }
    
    .qualification .book-image {
        order: 2;
        display: flex;
        justify-content: center;
        align-items: center;
    }
    
    .qualification .book-image img {
        width: 180px;
        max-width: 90%;
    }
    
    .qualification .book-description {
        order: 1;
        justify-content: center;
    }
    
    .qualification .book-description p {
        font-size: 1.2rem;
        text-align: center;
        line-height: 1.6;
        padding: 0 10px;
    }
    
    .results-numbers {
        grid-template-columns: 1fr;
        gap: 15px;
    }
}

@media (max-width: 768px) {
    .container {
        padding: 0 15px;
    }
    
    .hero {
        padding: 40px 0;
        min-height: auto;
    }
    
    .hero-badges {
        justify-content: center;
    }
    
    .countdown {
        gap: 15px;
    }
    
    .time-unit {
        min-width: 60px;
        padding: 15px;
    }
    
    .time-value {
        font-size: 1.8rem;
    }
    
    .mobile-sticky-cta {
        display: block;
    }
    
    .offers-container {
        grid-template-columns: 1fr;
        gap: 20px;
        max-width: 100%;
    }

    .offer-card.premium {
        transform: none;
    }

    .offer-card.premium:hover {
        transform: translateY(-5px);
    }
    
    .security-badges {
        justify-content: center;
        flex-wrap: wrap;
    }
    
    .cta-button {
        font-size: 1rem;
        padding: 14px 20px;
        width: 100%;
        max-width: none;
    }
    
    h1 {
        font-size: 1.8rem;
    }
    
    h2 {
        font-size: 1.5rem;
    }
    
    .price-highlight {
        font-size: 2.5rem;
    }
    
    /* Mobile specific improvements */
    .problems-grid,
    .solution-grid {
        grid-template-columns: 1fr;
        gap: 20px;
    }
    
    .problem-item,
    .solution-item {
        padding: 20px;
        text-align: center;
    }
    
    .testimonial {
        padding: 20px;
        font-size: 1rem;
    }
    
    .credentials {
        justify-content: center;
        flex-wrap: wrap;
    }
    
    .results-numbers {
        grid-template-columns: 1fr;
        gap: 15px;
    }
    
    .qualification-grid {
        grid-template-columns: 1fr;
        gap: 20px;
    }
    
    .author-image img {
        height: 250px;
    }
    
    .profession {
        text-align: center;
        font-size: 1rem;
    }
    
    /* Testimonials responsive */
    .testimonials-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 20px;
        max-width: 100%;
    }
    
    .testimonial-card {
        padding: 18px;
    }
    
    .testimonials-stats {
        grid-template-columns: 1fr;
        gap: 20px;
        margin-top: 40px;
    }
}

@media (max-width: 480px) {
    .container {
        padding: 0 10px;
    }
    
    .problems-grid,
    .solution-grid {
        grid-template-columns: 1fr;
        gap: 15px;
    }
    
    .countdown {
        flex-direction: column;
        align-items: center;
        gap: 10px;
    }
    
    .time-unit {
        width: 120px;
        padding: 10px;
    }
    
    .time-value {
        font-size: 1.5rem;
    }
    
    .time-label {
        font-size: 0.8rem;
    }
    
    .hero-headline {
        font-size: 1.4rem;
        line-height: 1.2;
    }
    
    .hero-subheadline {
        font-size: 1rem;
    }
    
    .hero {
        padding: 30px 0;
    }
    
    .cta-button {
        font-size: 0.95rem;
        padding: 12px 16px;
        letter-spacing: 0.3px;
    }
    
    .offer-card {
        padding: 20px;
    }
    
    .current-price {
        font-size: 1.8rem;
    }
    
    .offer-header h3 {
        font-size: 1.3rem;
    }
    
    .problem-item,
    .solution-item {
        padding: 15px;
    }
    
    .problem-icon,
    .solution-icon {
        font-size: 1.8rem;
        margin-bottom: 10px;
    }
    
    .testimonial {
        padding: 15px;
        font-size: 0.95rem;
        margin: 20px 0;
    }
    
    .credentials {
        gap: 10px;
    }
    
    .credential {
        font-size: 0.9rem;
    }
    
    .results-numbers {
        gap: 10px;
    }
    
    .result-card {
        padding: 15px;
    }
    
    .number {
        font-size: 1.8rem;
    }
    
    .label {
        font-size: 0.85rem;
    }
    
    .price-highlight {
        font-size: 2rem;
    }
    
    .old-price {
        font-size: 1rem;
    }
    
    .author-image img {
        height: 200px;
    }
    
    .profession {
        font-size: 0.95rem;
    }
    
    h2 {
        font-size: 1.3rem;
    }
    
    h3 {
        font-size: 1.1rem;
    }
    
    .badge {
        padding: 6px 12px;
        font-size: 0.85rem;
    }
    
    .hero-badges {
        gap: 10px;
    }
    
    /* Book info mobile optimizations */
    .qualification-content {
        margin: 20px auto 0;
        padding: 0 10px;
    }
    
    .qualification-image {
        margin-bottom: 15px;
    }
    
    .qualification-image img {
        width: clamp(270px, 55vw, 320px);
    }
    
    .qualification .book-description p {
        font-size: clamp(1rem, 2.5vw, 1.1rem);
        line-height: 1.5;
        padding: 0 5px;
        text-align: center;
    }
    
    /* Checklist mobile optimizations */
    .book-content-checklist {
        margin: 25px auto 0;
        padding: 0 10px;
    }
    
    .book-content-checklist h3 {
        font-size: clamp(1.2rem, 3.5vw, 1.4rem);
        margin-bottom: 20px;
    }
    
    .checklist li {
        margin-bottom: 12px;
        padding: 10px 12px;
    }
    
    .check-icon {
        font-size: 1rem;
        margin-right: 10px;
    }
    
    .checklist span {
        font-size: clamp(0.9rem, 2.5vw, 1rem);
        line-height: 1.4;
    }

    /* Testimonials mobile optimizations */
    .testimonials-grid {
        grid-template-columns: 1fr;
    }
    
    .testimonial-card {
        padding: 15px;
    }
    
    .testimonial-content p {
        font-size: 0.95rem;
    }
    
    .author-info h4 {
        font-size: 1rem;
    }
    
    .author-info span {
        font-size: 0.85rem;
    }
    
    .stat-number {
        font-size: 2rem;
    }
    
    .stat-label {
        font-size: 1rem;
    }
}

@media (max-width: 768px) {
    .qualification-content {
        margin: 25px auto 0;
        padding: 0 15px;
    }
    
    .qualification-image {
        margin-bottom: 20px;
    }
    
    .qualification-image img {
        width: clamp(290px, 50vw, 340px);
    }
    
    .qualification .book-description p {
        font-size: clamp(1.05rem, 2.8vw, 1.15rem);
        line-height: 1.6;
        text-align: center;
        padding: 0 15px;
    }
    
    /* Checklist tablet optimizations */
    .book-content-checklist {
        margin: 30px auto 0;
        padding: 0 15px;
    }
    
    .book-content-checklist h3 {
        font-size: clamp(1.3rem, 3.2vw, 1.6rem);
        margin-bottom: 22px;
    }
    
    .checklist li {
        margin-bottom: 13px;
        padding: 11px 14px;
    }
}

@media (max-width: 600px) {
    .testimonials-grid {
        grid-template-columns: 1fr;
        gap: 15px;
    }
}

/* Ultra small screens (320px and below) */
@media (max-width: 320px) {
    .container {
        padding: 0 8px;
    }
    
    .hero-headline {
        font-size: 1.2rem;
    }
    
    .hero-subheadline {
        font-size: 0.9rem;
    }
    
    .cta-button {
        font-size: 0.9rem;
        padding: 10px 14px;
    }
    
    .time-unit {
        width: 100px;
        padding: 8px;
    }
    
    .time-value {
        font-size: 1.3rem;
    }
    
    .price-highlight {
        font-size: 1.8rem;
    }
    
    h2 {
        font-size: 1.2rem;
    }
    
    .testimonial {
        font-size: 0.9rem;
        padding: 12px;
    }
    
    .author-image img {
        height: 180px;
    }
    
    /* Book info ultra small screens */
    .qualification-content {
        margin: 15px auto 0;
        padding: 0 5px;
    }
    
    .qualification-image {
        margin-bottom: 12px;
    }
    
    .qualification-image img {
        width: clamp(220px, 60vw, 260px);
    }
    
    .qualification .book-description p {
        font-size: clamp(0.9rem, 2.5vw, 1rem);
        line-height: 1.4;
        padding: 0;
        text-align: center;
    }
    
    /* Checklist ultra small screens */
    .book-content-checklist {
        margin: 20px auto 0;
        padding: 0 5px;
    }
    
    .book-content-checklist h3 {
        font-size: clamp(1.1rem, 4vw, 1.3rem);
        margin-bottom: 18px;
    }
    
    .checklist li {
        margin-bottom: 10px;
        padding: 8px 10px;
        border-left-width: 3px;
    }
    
    .check-icon {
        font-size: 0.9rem;
        margin-right: 8px;
    }
    
    .checklist span {
        font-size: clamp(0.85rem, 2.8vw, 0.95rem);
        line-height: 1.3;
    }
}

/* Performance Optimizations */
.hero-image img,
.author-image img {
    content-visibility: auto;
    contain-intrinsic-size: 400px 300px;
}

/* High contrast mode support */
@media (prefers-contrast: high) {
    .badge,
    .problem-item,
    .solution-item {
        border: 2px solid currentColor;
    }
}

/* Reduced motion support */
@media (prefers-reduced-motion: reduce) {
    * {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }
    
    html {
        scroll-behavior: auto;
    }
}

/* Enhanced Mobile Touch Targets and Accessibility */
@media (max-width: 768px) {
    /* Touch target minimum sizes for accessibility */
    button, 
    .cta-button, 
    .faq-question, 
    a:not(.text-link),
    .time-unit,
    .mobile-sticky-cta .cta-button {
        min-height: 44px;
        min-width: 44px;
    }
    
    /* Improved spacing for touch interactions */
    .hero-badges .badge,
    .credentials .credential {
        margin: 4px;
    }
    
    /* Better mobile readability */
    .container {
        width: 100%;
        overflow-x: hidden;
    }
    
    /* Ensure images don't overflow on small screens */
    img {
        max-width: 100%;
        height: auto;
    }
    
    /* Improved mobile form elements */
    input, textarea, select {
        font-size: 16px; /* Prevents zoom on iOS */
        min-height: 44px;
    }
}

/* Very small mobile devices (Galaxy Fold, etc.) */
@media (max-width: 280px) {
    .container {
        padding: 0 5px;
    }
    
    .hero-headline {
        font-size: 1.1rem;
        line-height: 1.2;
    }
    
    .badge {
        font-size: 0.7rem;
        padding: 3px 8px;
    }
    
    .time-unit {
        width: 80px;
        padding: 6px;
    }
    
    .time-value {
        font-size: 1.2rem;
    }
}