/* =============================================================================
   LANDING PAGE HERO SECTION
   ============================================================================= */

/* Landing Hero Section */
/* Font Import */
@font-face {
    font-family: 'NVN Yellost';
    src: url('../font/NVN Yellost-Regular VH.ttf') format('truetype');
    font-weight: normal;
    font-style: normal;
    font-display: swap;
}

.landing-hero {
    position: relative;
    width: 100%;
    height: 0;
    padding-bottom: 47.17%; /* 100 / 2.12 = 47.17% để có tỉ lệ 2.12:1 */
    display: flex;
    align-items: center;
    justify-content: center;
    background-image: url('../../assets/images/index/BACK2.png');
    background-size: cover;
    background-position: center;
    background-repeat: no-repeat;
    overflow: hidden;
}

/* Hero Content Container */
.landing-hero-content {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    max-width: 1520px;
    width: 100%;
    margin: 0 auto;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    text-align: center;
    gap: 3.5%;
    padding: 3% 2%;
}

/* Logo */
.landing-hero-logo {
    width: 100%;
    max-width: 28%;
    animation: fadeInScale 1s ease-out;
}

.landing-logo-img {
    width: 100%;
    height: auto;
    display: block;
    filter: drop-shadow(0 10px 30px rgba(0, 0, 0, 0.3));
}

/* Hero Text */
.landing-hero-text {
    font-family: 'Be Vietnam Pro', sans-serif;
    font-size: clamp(15px, 2.24vw, 34px);
    font-weight: 400;
    line-height: 1.3;
    color: #FAE5B6;
    margin: 0;
    text-shadow: 0 2px 10px rgba(0, 0, 0, 0.3);
    animation: fadeInUp 1s ease-out 0.3s both;
}

/* Buttons Container */
.landing-hero-buttons {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: clamp(10px, 1.5vw, 20px);
    justify-content: center;
    animation: fadeInUp 1s ease-out 0.6s both;
    width: auto;
    max-width: 100%;
}

/* Button Base Style */
.landing-btn {
    font-family: 'Be Vietnam Pro', sans-serif;
    font-size: clamp(11px, 1.2vw, 18px);
    font-weight: 500;
    padding: clamp(10px, 1.1vw, 16px) clamp(20px, 3.2vw, 48px);
    border: none;
    border-radius: 12px;
    cursor: pointer;
    transition: all 0.3s ease;
    text-decoration: none;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.2);
    white-space: nowrap;
    width: 100%;
}

/* Primary Button (Khám phá) */
.landing-btn-primary {
    background-color: #FFFFFF;
    color: #671716;
}

.landing-btn-primary:hover {
    background-color: #f5f5f5;
    transform: translateY(-3px);
    box-shadow: 0 6px 20px rgba(0, 0, 0, 0.3);
}

.landing-btn-primary:active {
    transform: translateY(-1px);
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.2);
}

/* Secondary Button (Đăng ký ngay) */
.landing-btn-secondary {
    background-color: #FAE5B6;
    color: #671716;
}

.landing-btn-secondary:hover {
    background-color: #f5d89d;
    transform: translateY(-3px);
    box-shadow: 0 6px 20px rgba(0, 0, 0, 0.3);
}

.landing-btn-secondary:active {
    transform: translateY(-1px);
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.2);
}

/* =============================================================================
   SECTION 2: VIỆT SỬ KÝ LÀ GÌ?
   ============================================================================= */

.landing-section-2 {
    width: 100%;
    background-color: #FFFFFF;
    padding: 60px 65px;
}

.landing-section-2-container {
    max-width: 1520px;
    margin: 0 auto;
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 0;
    align-items: stretch;
    border-radius: 20px;
    overflow: hidden;
}

.landing-section-2-left {
    width: 100%;
    padding-right: 0;
    position: relative;
    overflow: hidden;
    border-radius: 20px 20px 0 20px;
}

.landing-section-2-left::before {
    content: '';
    display: block;
    padding-bottom: 75%; /* 3/4 = 0.75 = 75% để có tỉ lệ 4:3 */
}

.landing-section-2-img {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    display: block;
    border-radius: 0;
    box-shadow: none;
    object-fit: cover;
}

.landing-section-2-right {
    background-color: transparent;
    display: flex;
    flex-direction: column;
    gap: 0;
    padding: 0;
    border-radius: 0;
    min-height: 100%;
    justify-content: flex-start;
    position: relative;
}

.landing-section-2-white-block {
    width: 100%;
    height: 18.475%;
    background-color: #FFFFFF;
    flex-shrink: 0;
}

.landing-section-2-content {
    flex: 1;
    display: flex;
    flex-direction: column;
    gap: 20px;
    padding: 25px 45px 35px 45px;
    justify-content: center;
    background-color: #FAE5B6;
    border-radius: 0 20px 20px 0;
}

.landing-section-2-title {
    font-family: 'NVN Yellost', cursive;
    font-size: clamp(24px, 3.5vw, 56px);
    font-weight: 500;
    color: #9E1C1B;
    margin: 0;
    line-height: 1.2;
}

.landing-section-2-text {
    font-family: 'Be Vietnam Pro', sans-serif;
    font-size: clamp(13px, 1.3vw, 20px);
    font-weight: 400;
    color: #4A4A4A;
    line-height: 1.6;
    margin: 0;
}

/* =============================================================================
   SECTION 3: GIẢI PHÁP GIÁO DỤC KHÁC BIỆT
   ============================================================================= */

.landing-section-3 {
    width: 100%;
    background-color: #fff;
    padding: 80px 65px;
}

.landing-section-3-container {
    max-width: 1520px;
    margin: 0 auto;
    display: flex;
    flex-direction: column;
    gap: 60px;
}

.landing-section-3-header {
    text-align: left;
    display: flex;
    flex-direction: column;
    gap: 5px;
    max-width: 1200px;
    margin: 0 auto;
    width: 100%;
}

.landing-section-3-subtitle {
    font-family: 'Be Vietnam Pro', sans-serif;
    font-size: clamp(16px, 1.8vw, 28px);
    font-weight: 400;
    color: #9E1C1B;
    margin: 0;
    line-height: 1.2;
}

.landing-section-3-title {
    font-family: 'NVN Yellost', cursive;
    font-size: clamp(32px, 4.5vw, 70px);
    font-weight: 500;
    color: #9E1C1B;
    margin: 0;
    margin-top: 20px;
    line-height: 1.1;
}

.landing-section-3-features {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: clamp(50px, 6vw, 100px) clamp(80px, 10vw, 160px);
    max-width: 1200px;
    margin: 0 auto;
    width: 100%;
}

.landing-feature {
    display: flex;
    flex-direction: row;
    gap: 20px;
    align-items: flex-start;
}

.landing-feature-icon {
    width: clamp(80px, 10vw, 140px);
    height: clamp(80px, 10vw, 140px);
    flex-shrink: 0;
}

.landing-feature-icon img {
    width: 100%;
    height: 100%;
    display: block;
    object-fit: contain;
}

.landing-feature-content {
    display: flex;
    flex-direction: column;
    gap: 10px;
    flex: 1;
}

.landing-feature-title {
    font-family: 'Be Vietnam Pro', sans-serif;
    font-size: clamp(18px, 2vw, 28px);
    font-weight: 500;
    color: #9E1C1B;
    margin: 0;
    line-height: 1.3;
}

.landing-feature-text {
    font-family: 'Be Vietnam Pro', sans-serif;
    font-size: clamp(13px, 1.3vw, 18px);
    font-weight: 400;
    color: #4A4A4A;
    margin: 0;
    line-height: 1.6;
}

/* =============================================================================
   SECTION 4: VÌ SAO NÊN CHỌN VIỆT SỬ KÝ?
   ============================================================================= */

.landing-section-4 {
    width: 100%;
    background-color: #FFFFFF;
    padding: 80px 65px;
}

.landing-section-4-container {
    max-width: 1520px;
    margin: 0 auto;
    display: flex;
    flex-direction: column;
    gap: 60px;
}

.landing-section-4-title {
    font-family: 'NVN Yellost', cursive;
    font-size: clamp(32px, 4.5vw, 70px);
    font-weight: 500;
    color: #9E1C1B;
    margin: 0;
    line-height: 1.1;
    text-align: center;
}

.landing-section-4-cards {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: clamp(30px, 3vw, 50px);
    max-width: 1200px;
    margin: 0 auto;
    width: 100%;
}

.landing-card {
    display: flex;
    flex-direction: column;
    border-radius: 20px;
    overflow: hidden;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.1);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.landing-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 8px 25px rgba(0, 0, 0, 0.15);
}

.landing-card-image {
    width: 100%;
    position: relative;
    overflow: hidden;
}

.landing-card-image::before {
    content: '';
    display: block;
    padding-bottom: 75%; /* 4:3 aspect ratio */
}

.landing-card-image img {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    object-fit: cover;
    display: block;
}

.landing-card-content {
    background-color: #FAE5B6;
    padding: clamp(20px, 2.5vw, 35px);
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.landing-card-title {
    font-family: 'Be Vietnam Pro', sans-serif;
    font-size: clamp(20px, 2vw, 26px);
    font-weight: 500;
    color: #9E1C1B;
    margin: 0;
    line-height: 1.3;
}

.landing-card-text {
    font-family: 'Be Vietnam Pro', sans-serif;
    font-size: clamp(13px, 1.3vw, 16px);
    font-weight: 400;
    color: #4A4A4A;
    margin: 0;
    line-height: 1.6;
}

/* =============================================================================
   SECTION 5: FEEDBACK - CẢM NHẬN TỪ NGƯỜI DÙNG
   ============================================================================= */

.feedback {
    padding: 80px;
    background-color: #fff;
}

.feedback-container {
    max-width: 1400px;
    margin: 0 auto;
}

.feedback-header {
    display: flex;
    justify-content: space-between;
    align-items: flex-end;
    margin-bottom: 60px;
    min-height: 120px;
}

.feedback-text-content {
    flex: 1;
}

.feedback-main-title {
    font-family: 'NVN Yellost', cursive;
    font-size: clamp(32px, 4.5vw, 60px);
    font-weight: normal;
    color: #8F0002;
    margin-bottom: 20px;
}

.feedback-subtitle {
    font-family: 'Be Vietnam Pro', sans-serif;
    font-size: clamp(15px, 1.5vw, 21px);
    color: #8F0002;
    line-height: 1.6;
    margin-bottom: 0;
    font-weight: 400;
}

.feedback-btn {
    background-color: #8F0001;
    color: #fff;
    border: none;
    padding: 12px 24px;
    border-radius: 7px;
    font-weight: 400;
    cursor: pointer;
    transition: all 0.3s ease;
    margin-left: 40px;
    flex-shrink: 0;
    align-self: flex-end;
    font-size: clamp(14px, 1.2vw, 17px);
    font-family: 'Be Vietnam Pro', sans-serif;
}

.feedback-btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 15px rgba(255, 255, 255, 0.3);
}

.feedback-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 30px;
}

.feedback-card {
    background: #FAE5B6;
    border-radius: 7px;
    display: flex;
    flex-direction: row;
    align-items: flex-start;
    gap: 25px;
    box-shadow: 0 5px 20px rgba(0, 0, 0, 0.1);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
    min-height: 200px;
    overflow: hidden;
}

.feedback-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 8px 30px rgba(0, 0, 0, 0.15);
}

.feedback-content {
    flex: 1;
    padding: 20px;
    display: flex;
    flex-direction: column;
    height: calc(100% - 40px);
}

.feedback-rating {
    margin-bottom: 15px;
}

.feedback-rating span {
    color: #8F0002;
    font-size: clamp(16px, 1.5vw, 21px);
}

.feedback-text {
    font-family: 'Be Vietnam Pro', sans-serif;
    font-size: clamp(13px, 1.1vw, 15px);
    color: #4C4C4D;
    line-height: 1.6;
    margin-bottom: auto;
    flex: 1;
}

.feedback-author {
    font-family: 'Be Vietnam Pro', sans-serif;
    color: #4C4C4D;
    margin-top: 15px;
    align-self: flex-start;
}

.author-name {
    color: #8F0002;
    font-weight: 700;
    font-size: clamp(15px, 1.3vw, 18px);
}

.author-job {
    color: #333;
    font-weight: 300;
    font-size: clamp(13px, 1.1vw, 15px);
}

.feedback-image {
    width: 180px;
    height: 100%;
    border-bottom-right-radius: 7px;
    border-top-right-radius: 7px;
    overflow: hidden;
    flex-shrink: 0;
}

.feedback-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

/* =============================================================================
   SECTION 6: PRICING - LỰA CHỌN GÓI HỌC PHÙ HỢP
   ============================================================================= */

.pricing {
    padding: 80px 65px;
    background-color: #9E1C1B;
}

.pricing-container {
    max-width: 1520px;
    margin: 0 auto;
}

.pricing-title {
    text-align: center;
    font-family: 'NVN Yellost', cursive;
    font-size: clamp(32px, 4.5vw, 60px);
    font-weight: normal;
    color: #fff;
    margin-bottom: 60px;
}

.pricing-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: clamp(20px, 2.5vw, 35px);
    max-width: 1200px;
    margin: 0 auto;
}

.pricing-card {
    background: #FFFFFF;
    border-radius: 14px;
    padding: clamp(20px, 2.5vw, 30px) clamp(18px, 2vw, 25px);
    text-align: left;
    transition: transform 0.3s ease, box-shadow 0.3s ease;
    box-shadow: 0 5px 20px rgba(0, 0, 0, 0.1);
    display: flex;
    flex-direction: column;
    position: relative;
}

.pricing-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 8px 30px rgba(0, 0, 0, 0.15);
}

.pricing-icon {
    width: clamp(40px, 5vw, 50px);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 0 15px 0;
    color: #8F0002;
}

.pricing-icon img {
    width: 100%;
}

.pricing-plan-type {
    font-family: 'Be Vietnam Pro', sans-serif;
    font-size: clamp(14px, 1.7vw, 20px);
    font-weight: 600;
    color: #333;
    margin-bottom: 20px;
}

.pricing-amount {
    margin-bottom: 22px;
}

.price-main {
    display: flex;
    align-items: baseline;
    gap: 6px;
    margin-bottom: 6px;
}

.price-number {
    font-family: 'Be Vietnam Pro', sans-serif;
    font-size: clamp(22px, 2.8vw, 34px);
    font-weight: 600;
    color: #8F0002;
}

.price-currency {
    font-family: 'Be Vietnam Pro', sans-serif;
    font-size: clamp(20px, 2.6vw, 32px);
    font-weight: 600;
    color: #8F0002;
}

.price-period {
    font-family: 'Be Vietnam Pro', sans-serif;
    font-size: clamp(9px, 0.95vw, 11px);
    color: #666;
}

.price-note {
    font-family: 'Be Vietnam Pro', sans-serif;
    font-size: clamp(8px, 0.85vw, 9px);
    color: #666;
    margin-top: 4px;
    line-height: 1.3;
}

.pricing-features {
    list-style: none;
    padding: 0;
    margin: 0 0 22px 0;
    text-align: left;
}

.pricing-features li {
    display: flex;
    align-items: flex-start;
    margin-bottom: 10px;
    font-size: clamp(9px, 0.95vw, 11px);
    line-height: 1.4;
}

.pricing-features .feature-icon {
    width: 18px;
    height: 18px;
    background: #8F0002;
    color: #FFFFFF;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-right: 8px;
    flex-shrink: 0;
    font-size: 9px;
    font-weight: bold;
}

.pricing-features .feature-text {
    font-family: 'Be Vietnam Pro', sans-serif;
    color: #505050;
    flex: 1;
}

.pricing-btn-custom {
    background: #8F0002;
    color: #FFFFFF;
    border: none;
    padding: clamp(10px, 1.3vw, 13px) clamp(18px, 2.2vw, 26px);
    border-radius: 8px;
    font-family: 'Be Vietnam Pro', sans-serif;
    font-size: clamp(11px, 1.05vw, 13px);
    font-weight: 500;
    cursor: pointer;
    transition: all 0.3s ease;
    margin-top: auto;
}

.pricing-btn-custom:hover {
    background: #b21e1f;
    transform: translateY(-2px);
    box-shadow: 0 4px 15px rgba(143, 0, 2, 0.3);
}

/* =============================================================================
   SECTION 7: FAQ - CÂU HỎI THƯỜNG GẶP
   ============================================================================= */

.faq-section {
    padding: 80px 65px;
    background-color: #FFFFFF;
}

.faq-container {
    width: 100%;
    margin: 0 auto;
    display: flex;
    gap: 50px;
    align-items: flex-start;
}

.faq-title {
    font-family: 'NVN Yellost', cursive;
    font-size: clamp(32px, 4.5vw, 60px);
    font-weight: 500;
    color: #9E1C1B;
    text-align: left;
    margin: 0;
    margin-top: -15px;
    flex-shrink: 0;
    width: 400px;
    white-space: nowrap;
}

.faq-list {
    display: flex;
    flex-direction: column;
    gap: 20px;
    flex: 1;
}

.faq-item {
    background-color: #FAE5B6;
    border-radius: 12px;
    overflow: hidden;
    transition: box-shadow 0.3s ease;
    cursor: pointer;
}

.faq-item:hover {
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.1);
}

.faq-question {
    width: 100%;
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: clamp(18px, 2vw, 24px) clamp(20px, 2.5vw, 30px);
    background-color: #FAE5B6;
    border: none;
    cursor: pointer;
    text-align: left;
    transition: background-color 0.3s ease;
    gap: 20px;
}


.faq-question-text {
    font-family: 'Be Vietnam Pro', sans-serif;
    font-size: clamp(14px, 1.5vw, 18px);
    font-weight: 600;
    color: #9E1C1B;
    flex: 1;
}

.faq-icon {
    font-size: clamp(12px, 1.2vw, 16px);
    color: #9E1C1B;
    transition: transform 0.3s ease;
    flex-shrink: 0;
}

.faq-item.active .faq-icon {
    transform: rotate(180deg);
}

.faq-answer {
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.4s ease, padding 0.4s ease;
    background-color: #FAE5B6;
}

.faq-item.active .faq-answer {
    max-height: 500px;
    padding: 0 clamp(20px, 2.5vw, 30px) clamp(18px, 2vw, 24px);
}

.faq-answer p {
    font-family: 'Be Vietnam Pro', sans-serif;
    font-size: clamp(13px, 1.3vw, 16px);
    font-weight: 400;
    color: #4A4A4A;
    line-height: 1.6;
    margin: 0;
}

/* =============================================================================
   SECTION 8: CTA - ĐĂNG KÝ HỌC THỬ
   ============================================================================= */

.cta-section {
    background: #FAE4B6;
    padding: 80px 0;
}

.cta-section .container {
    max-width: 100%;
    margin: 0 auto;
    padding: 0 20px;
}

.cta-content {
    display: flex;
    gap: 60px;
    align-items: center;
    justify-content: center;
}

.cta-left {
    flex: 1;
    max-width: 50%;
    display: flex;
    justify-content: center;
    align-items: center;
}

.cta-laptop {
    width: 100%;
}

.cta-laptop img {
    width: 100%;
    height: auto;
    filter: drop-shadow(0 10px 30px rgba(0, 0, 0, 0.2));
}

.cta-right {
    flex: 1;
    max-width: 40%;
    display: flex;
    justify-content: flex-start;
    align-items: center;
}

.cta-form-container {
    width: 100%;
    max-width: 550px;
}

.cta-title {
    font-size: 28px;
    text-align: left;
    font-weight: 700;
    color: #8F0002;
    margin-bottom: 40px;
    line-height: 1.3;
}

.cta-form {
    display: flex;
    flex-direction: column;
    gap: 25px;
}

.form-group {
    position: relative;
}

.form-input {
    width: 100%;
    padding: 17px 25px;
    border: 2px solid #E5E7EB;
    border-radius: 12px;
    font-size: 18px;
    font-family: 'Be Vietnam Pro', sans-serif;
    background: white;
    transition: all 0.3s ease;
    box-sizing: border-box;
}

.form-input:focus {
    outline: none;
    border-color: #8F0002;
    box-shadow: 0 0 0 3px rgba(143, 0, 2, 0.1);
}

.form-input::placeholder {
    color: #9CA3AF;
}

.cta-btn {
    width: 200px;
    background: #8F0002;
    color: white;
    border: none;
    padding: 15px 15px;
    border-radius: 12px;
    font-size: 20px;
    font-weight: 300;
    font-family: 'Be Vietnam Pro', sans-serif;
    cursor: pointer;
    transition: all 0.3s ease;
    margin-top: 15px;
}

.cta-btn:hover {
    background: #b21e1f;
    transform: translateY(-2px);
    box-shadow: 0 5px 15px rgba(143, 0, 2, 0.3);
}

/* =============================================================================
   ANIMATIONS
   ============================================================================= */

@keyframes fadeInScale {
    from {
        opacity: 0;
        transform: scale(0.9);
    }
    to {
        opacity: 1;
        transform: scale(1);
    }
}

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

/* =============================================================================
   RESPONSIVE DESIGN
   ============================================================================= */

/* Tablets and Small Laptops (768px - 1024px) */
@media (max-width: 1024px) {
    .landing-hero {
        padding-bottom: 47.17%;
    }

    .landing-hero-content {
        gap: 3%;
        padding: 2.5% 2%;
    }

    .landing-hero-logo {
        max-width: 30%;
    }

    .landing-hero-text {
        font-size: clamp(14px, 1.96vw, 28px);
    }

    /* Section 2 Responsive */
    .landing-section-2 {
        padding: 60px 40px;
    }

    .landing-section-2-left {
        padding-right: 0;
    }

    .landing-section-2-img {
        border-radius: 18px 0 0 18px;
    }

    .landing-section-2-right {
        border-radius: 0 18px 18px 0;
    }

    .landing-section-2-white-block {
        border-radius: 0 18px 0 0;
    }

    .landing-section-2-content {
        padding: 20px 35px 30px 35px;
        gap: 18px;
    }

    .landing-section-2-title {
        font-size: clamp(22px, 3vw, 40px);
    }

    .landing-section-2-text {
        font-size: clamp(12px, 1.2vw, 16px);
        line-height: 1.5;
    }

    /* Section 3 Responsive */
    .landing-section-3 {
        padding: 60px 30px;
    }

    .landing-section-3-container {
        gap: 50px;
    }

    .landing-section-3-subtitle {
        font-size: clamp(14px, 1.6vw, 24px);
    }

    .landing-section-3-title {
        font-size: clamp(28px, 4vw, 60px);
    }

    .landing-section-3-features {
        gap: clamp(35px, 4.5vw, 70px) clamp(50px, 7vw, 100px);
    }

    .landing-feature-icon {
        width: clamp(70px, 9vw, 120px);
        height: clamp(70px, 9vw, 120px);
    }

    .landing-feature-title {
        font-size: clamp(16px, 1.8vw, 24px);
    }

    .landing-feature-text {
        font-size: clamp(12px, 1.2vw, 16px);
    }

    /* Section 4 Responsive */
    .landing-section-4 {
        padding: 60px 40px;
    }

    .landing-section-4-container {
        gap: 50px;
    }

    .landing-section-4-title {
        font-size: clamp(28px, 4vw, 60px);
    }

    .landing-section-4-cards {
        gap: clamp(25px, 2.5vw, 40px);
    }

    .landing-card {
        border-radius: 18px;
    }

    .landing-card-content {
        padding: clamp(18px, 2.2vw, 30px);
        gap: 10px;
    }

    .landing-card-title {
        font-size: clamp(16px, 1.8vw, 22px);
    }

    .landing-card-text {
        font-size: clamp(12px, 1.2vw, 15px);
    }

    /* Section 5: Feedback Responsive */
    .feedback {
        padding: 60px 40px;
    }

    .feedback-header {
        margin-bottom: 50px;
        min-height: auto;
    }

    .feedback-main-title {
        font-size: clamp(28px, 4vw, 50px);
    }

    .feedback-subtitle {
        font-size: clamp(14px, 1.4vw, 19px);
    }

    .feedback-btn {
        padding: 10px 20px;
        font-size: clamp(13px, 1.1vw, 16px);
    }

    .feedback-grid {
        gap: 25px;
    }

    .feedback-image {
        width: 150px;
    }

    /* Section 6: Pricing Responsive */
    .pricing {
        padding: 60px 40px;
    }

    .pricing-title {
        font-size: clamp(28px, 4vw, 50px);
        margin-bottom: 50px;
    }

    .pricing-grid {
        gap: clamp(22px, 2.5vw, 35px);
    }

    .pricing-card {
        padding: clamp(22px, 2.7vw, 35px) clamp(18px, 2.2vw, 28px);
    }

    .pricing-icon {
        width: clamp(45px, 5.5vw, 55px);
    }

    /* Section 7: FAQ Responsive */
    .faq-section {
        padding: 60px 40px;
    }

    .faq-container {
        gap: 35px;
    }

    .faq-title {
        font-size: clamp(28px, 4vw, 50px);
        width: 320px;
    }

    .faq-list {
        gap: 18px;
    }

    .faq-question {
        padding: clamp(18px, 2vw, 22px) clamp(22px, 2.5vw, 26px);
    }

    .faq-question-text {
        font-size: clamp(14px, 1.6vw, 17px);
    }

    .faq-icon {
        font-size: clamp(12px, 1.3vw, 15px);
    }

    .faq-item.active .faq-answer {
        padding: 0 clamp(22px, 2.5vw, 26px) clamp(18px, 2vw, 22px);
    }

    .faq-answer p {
        font-size: clamp(13px, 1.4vw, 15px);
    }

    /* Section 8: CTA Responsive */
    .cta-content {
        gap: 40px;
    }
}

/* Mobile Landscape and Small Tablets (481px - 767px) */
@media (max-width: 767px) {
    .landing-hero {
        padding-bottom: 55%; /* Tỉ lệ cao hơn cho mobile */
    }

    .landing-hero-content {
        gap: 2.5%;
        padding: 3% 2%;
    }

    .landing-hero-logo {
        max-width: 35%;
    }

    .landing-hero-text {
        font-size: clamp(13px, 2.8vw, 22px);
        line-height: 1.4;
    }

    .landing-hero-buttons {
        grid-template-columns: 1fr 1fr;
        gap: clamp(8px, 1.5vw, 15px);
        max-width: 90%;
    }

    .landing-btn {
        font-size: clamp(10px, 2vw, 14px);
        padding: clamp(8px, 1.5vw, 12px) clamp(15px, 3vw, 30px);
    }

    /* Section 2 Responsive */
    .landing-section-2 {
        padding: 40px 15px;
    }

    .landing-section-2-container {
        grid-template-columns: 1fr;
        gap: 0;
        border-radius: 0;
    }

    .landing-section-2-left {
        padding-right: 0;
        order: 2;
    }

    .landing-section-2-img {
        border-radius: 0;
    }

    .landing-section-2-right {
        order: 1;
        border-radius: 0;
    }

    .landing-section-2-white-block {
        height: 15%;
        display: none;
    }

    .landing-section-2-content {
        padding: 20px 20px;
        gap: 16px;
        border-radius: 0;
    }

    .landing-section-2-title {
        font-size: clamp(20px, 4.5vw, 32px);
    }

    .landing-section-2-text {
        font-size: clamp(12px, 2.5vw, 15px);
        line-height: 1.5;
    }

    /* Section 3 Responsive */
    .landing-section-3 {
        padding: 50px 20px;
    }

    .landing-section-3-container {
        gap: 40px;
    }

    .landing-section-3-subtitle {
        font-size: clamp(13px, 3vw, 20px);
    }

    .landing-section-3-title {
        font-size: clamp(26px, 6vw, 46px);
    }

    .landing-section-3-features {
        grid-template-columns: 1fr;
        gap: clamp(30px, 6vw, 50px);
    }

    .landing-feature {
        gap: 15px;
    }

    .landing-feature-icon {
        width: clamp(65px, 15vw, 100px);
        height: clamp(65px, 15vw, 100px);
    }

    .landing-feature-title {
        font-size: clamp(16px, 3.5vw, 22px);
    }

    .landing-feature-text {
        font-size: clamp(12px, 2.8vw, 15px);
    }

    /* Section 4 Responsive */
    .landing-section-4 {
        padding: 50px 20px;
    }

    .landing-section-4-container {
        gap: 40px;
    }

    .landing-section-4-title {
        font-size: clamp(26px, 6vw, 46px);
    }

    .landing-section-4-cards {
        grid-template-columns: 1fr;
        gap: clamp(25px, 5vw, 40px);
    }

    .landing-card {
        border-radius: 16px;
    }

    .landing-card-content {
        padding: clamp(18px, 4vw, 28px);
        gap: 10px;
    }

    .landing-card-title {
        font-size: clamp(16px, 3.5vw, 22px);
    }

    .landing-card-text {
        font-size: clamp(12px, 2.8vw, 15px);
    }

    /* Section 5: Feedback Responsive */
    .feedback {
        padding: 50px 20px;
    }

    .feedback-header {
        flex-direction: column;
        align-items: flex-start;
        gap: 20px;
        margin-bottom: 40px;
    }

    .feedback-btn {
        margin-left: 0;
        align-self: flex-start;
    }

    .feedback-main-title {
        font-size: clamp(26px, 6vw, 46px);
        margin-bottom: 15px;
    }

    .feedback-subtitle {
        font-size: clamp(13px, 3vw, 18px);
    }

    .feedback-btn {
        padding: 10px 18px;
        font-size: clamp(12px, 2.5vw, 15px);
    }

    .feedback-grid {
        grid-template-columns: 1fr;
        gap: 20px;
    }

    .feedback-card {
        flex-direction: column;
        min-height: auto;
    }

    .feedback-image {
        width: 100%;
        height: 200px;
        border-bottom-right-radius: 0;
        border-top-right-radius: 0;
        border-bottom-left-radius: 7px;
    }

    .feedback-content {
        padding: 20px;
    }

    /* Section 6: Pricing Responsive */
    .pricing {
        padding: 50px 20px;
    }

    .pricing-title {
        font-size: clamp(26px, 6vw, 46px);
        margin-bottom: 40px;
    }

    .pricing-grid {
        grid-template-columns: 1fr;
        gap: clamp(20px, 4vw, 30px);
    }

    .pricing-card {
        padding: clamp(20px, 4vw, 30px) clamp(18px, 3.5vw, 25px);
    }

    .pricing-icon {
        width: clamp(45px, 10vw, 60px);
    }

    .pricing-plan-type {
        font-size: clamp(16px, 3.5vw, 22px);
        margin-bottom: 20px;
    }

    .price-number {
        font-size: clamp(26px, 6vw, 38px);
    }

    .price-currency {
        font-size: clamp(24px, 5.5vw, 36px);
    }

    .pricing-features li {
        font-size: clamp(12px, 2.8vw, 14px);
        margin-bottom: 10px;
    }

    /* Section 7: FAQ Responsive */
    .faq-section {
        padding: 50px 20px;
    }

    .faq-container {
        flex-direction: column;
        gap: 30px;
    }

    .faq-title {
        font-size: clamp(26px, 6vw, 46px);
        width: 100%;
    }

    .faq-list {
        gap: 16px;
    }

    .faq-question {
        padding: clamp(16px, 3.5vw, 20px) clamp(18px, 4vw, 24px);
    }

    .faq-question-text {
        font-size: clamp(13px, 3vw, 16px);
    }

    .faq-icon {
        font-size: clamp(11px, 2.6vw, 14px);
    }

    .faq-item.active .faq-answer {
        padding: 0 clamp(18px, 4vw, 24px) clamp(16px, 3.5vw, 20px);
    }

    .faq-answer p {
        font-size: clamp(12px, 2.8vw, 15px);
    }

    /* Section 8: CTA Responsive */
    .cta-content {
        flex-direction: column;
        gap: 40px;
        text-align: center;
    }
    
    .cta-left,
    .cta-right {
        max-width: 100%;
    }
    
    .cta-title {
        font-size: 28px;
        text-align: center;
    }
    
    .cta-laptop {
        max-width: 350px;
    }
}

/* Mobile Portrait (320px - 480px) */
@media (max-width: 480px) {
    .landing-hero {
        padding-bottom: 75%; /* Tỉ lệ cao hơn cho mobile nhỏ */
    }

    .landing-hero-content {
        gap: 3%;
        padding: 4% 3%;
    }

    .landing-hero-logo {
        max-width: 45%;
    }

    .landing-hero-text {
        font-size: clamp(11px, 3.5vw, 18px);
        line-height: 1.4;
        padding: 0 5%;
    }

    .landing-hero-buttons {
        grid-template-columns: 1fr 1fr;
        gap: clamp(6px, 1.2vw, 12px);
        max-width: 95%;
    }

    .landing-btn {
        font-size: clamp(9px, 2.5vw, 13px);
        padding: clamp(7px, 1.5vw, 10px) clamp(12px, 2.5vw, 20px);
    }

    /* Section 2 Responsive */
    .landing-section-2 {
        padding: 30px 12px;
    }

    .landing-section-2-container {
        grid-template-columns: 1fr;
        border-radius: 0;
    }

    .landing-section-2-img {
        border-radius: 0;
    }

    .landing-section-2-right {
        border-radius: 0;
    }

    .landing-section-2-white-block {
        height: 12%;
        display: none;
    }

    .landing-section-2-content {
        gap: 14px;
        padding: 18px 18px;
        border-radius: 0;
    }

    .landing-section-2-title {
        font-size: clamp(18px, 4.8vw, 26px);
    }

    .landing-section-2-text {
        font-size: clamp(11px, 2.8vw, 14px);
        line-height: 1.5;
    }

    /* Section 3 Responsive */
    .landing-section-3 {
        padding: 40px 15px;
    }

    .landing-section-3-container {
        gap: 35px;
    }

    .landing-section-3-subtitle {
        font-size: clamp(12px, 3.2vw, 18px);
    }

    .landing-section-3-title {
        font-size: clamp(24px, 6.5vw, 40px);
    }

    .landing-section-3-features {
        grid-template-columns: 1fr;
        gap: clamp(25px, 5.5vw, 40px);
    }

    .landing-feature {
        gap: 12px;
    }

    .landing-feature-icon {
        width: clamp(60px, 14vw, 90px);
        height: clamp(60px, 14vw, 90px);
    }

    .landing-feature-title {
        font-size: clamp(15px, 3.8vw, 20px);
    }

    .landing-feature-text {
        font-size: clamp(11px, 3vw, 14px);
    }

    /* Section 4 Responsive */
    .landing-section-4 {
        padding: 40px 15px;
    }

    .landing-section-4-container {
        gap: 35px;
    }

    .landing-section-4-title {
        font-size: clamp(24px, 6.5vw, 40px);
    }

    .landing-section-4-cards {
        grid-template-columns: 1fr;
        gap: clamp(20px, 4.5vw, 35px);
    }

    .landing-card {
        border-radius: 14px;
    }

    .landing-card-content {
        padding: clamp(16px, 3.5vw, 25px);
        gap: 8px;
    }

    .landing-card-title {
        font-size: clamp(15px, 3.8vw, 20px);
    }

    .landing-card-text {
        font-size: clamp(11px, 3vw, 14px);
    }

    /* Section 5: Feedback Responsive */
    .feedback {
        padding: 40px 15px;
    }

    .feedback-header {
        gap: 18px;
        margin-bottom: 35px;
    }

    .feedback-main-title {
        font-size: clamp(24px, 6.5vw, 40px);
        margin-bottom: 12px;
    }

    .feedback-subtitle {
        font-size: clamp(12px, 3.2vw, 16px);
    }

    .feedback-btn {
        padding: 9px 16px;
        font-size: clamp(11px, 2.8vw, 14px);
    }

    .feedback-grid {
        gap: 18px;
    }

    .feedback-card {
        min-height: auto;
    }

    .feedback-image {
        height: 180px;
    }

    .feedback-content {
        padding: 18px;
    }

    .feedback-rating span {
        font-size: clamp(14px, 3.5vw, 18px);
    }

    .feedback-text {
        font-size: clamp(12px, 3vw, 14px);
    }

    .author-name {
        font-size: clamp(14px, 3.5vw, 17px);
    }

    .author-job {
        font-size: clamp(12px, 3vw, 14px);
    }

    /* Section 6: Pricing Responsive */
    .pricing {
        padding: 40px 15px;
    }

    .pricing-title {
        font-size: clamp(24px, 6.5vw, 40px);
        margin-bottom: 35px;
    }

    .pricing-grid {
        gap: clamp(18px, 4.5vw, 28px);
    }

    .pricing-card {
        padding: clamp(18px, 3.5vw, 28px) clamp(16px, 3.2vw, 22px);
    }

    .pricing-icon {
        width: clamp(42px, 9vw, 55px);
    }

    .pricing-plan-type {
        font-size: clamp(15px, 3.8vw, 20px);
    }

    .price-number {
        font-size: clamp(24px, 6.5vw, 36px);
    }

    .price-currency {
        font-size: clamp(22px, 6vw, 34px);
    }

    .pricing-features li {
        font-size: clamp(11px, 3vw, 13px);
    }

    .pricing-btn-custom {
        padding: clamp(10px, 2.5vw, 13px) clamp(18px, 4vw, 25px);
        font-size: clamp(13px, 3.2vw, 15px);
    }

    /* Section 7: FAQ Responsive */
    .faq-section {
        padding: 40px 15px;
    }

    .faq-container {
        flex-direction: column;
        gap: 25px;
    }

    .faq-title {
        font-size: clamp(24px, 6.5vw, 40px);
        width: 100%;
    }

    .faq-list {
        gap: 15px;
    }

    .faq-question {
        padding: clamp(14px, 3.5vw, 18px) clamp(16px, 4vw, 20px);
        gap: 15px;
    }

    .faq-question-text {
        font-size: clamp(12px, 3.2vw, 15px);
    }

    .faq-icon {
        font-size: clamp(10px, 2.8vw, 13px);
    }

    .faq-item.active .faq-answer {
        padding: 0 clamp(16px, 4vw, 20px) clamp(14px, 3.5vw, 18px);
    }

    .faq-answer p {
        font-size: clamp(11px, 3vw, 14px);
    }

    /* Section 8: CTA Responsive */
    .cta-section {
        padding: 60px 0;
    }
    
    .cta-content {
        gap: 30px;
    }
    
    .cta-title {
        font-size: 28px;
        margin-bottom: 30px;
        line-height: 1.2;
    }
    
    .cta-form {
        gap: 20px;
    }
    
    .form-input {
        padding: 15px 18px;
        font-size: 16px;
        border-radius: 10px;
    }
    
    .cta-btn {
        padding: 15px 30px;
        font-size: 16px;
        border-radius: 10px;
        width: 100%;
        margin-top: 10px;
    }
    
    .cta-laptop {
        max-width: 280px;
    }
}

/* Extra Small Mobile (max-width: 375px) */
@media (max-width: 375px) {
    .landing-hero {
        padding-bottom: 85%;
    }

    .landing-hero-logo {
        max-width: 50%;
    }

    .landing-hero-text {
        font-size: clamp(10px, 3.85vw, 17px);
    }

    .landing-hero-buttons {
        grid-template-columns: 1fr 1fr;
        gap: clamp(5px, 1vw, 10px);
        max-width: 98%;
    }

    .landing-btn {
        font-size: clamp(8px, 2.2vw, 12px);
        padding: clamp(6px, 1.2vw, 9px) clamp(10px, 2vw, 16px);
    }

    /* Section 2 Responsive */
    .landing-section-2 {
        padding: 25px 10px;
    }

    .landing-section-2-container {
        grid-template-columns: 1fr;
        border-radius: 0;
    }

    .landing-section-2-img {
        border-radius: 0;
    }

    .landing-section-2-right {
        border-radius: 0;
    }

    .landing-section-2-white-block {
        height: 10%;
        display: none;
    }

    .landing-section-2-content {
        padding: 16px 16px;
        gap: 12px;
        border-radius: 0;
    }

    .landing-section-2-title {
        font-size: clamp(16px, 5vw, 24px);
    }

    .landing-section-2-text {
        font-size: clamp(10px, 3vw, 13px);
        line-height: 1.5;
    }

    /* Section 3 Responsive */
    .landing-section-3 {
        padding: 35px 12px;
    }

    .landing-section-3-container {
        gap: 30px;
    }

    .landing-section-3-subtitle {
        font-size: clamp(11px, 3.5vw, 16px);
    }

    .landing-section-3-title {
        font-size: clamp(22px, 7vw, 36px);
    }

    .landing-section-3-features {
        grid-template-columns: 1fr;
        gap: clamp(22px, 5vw, 35px);
    }

    .landing-feature {
        gap: 10px;
    }

    .landing-feature-icon {
        width: clamp(55px, 13vw, 80px);
        height: clamp(55px, 13vw, 80px);
    }

    .landing-feature-title {
        font-size: clamp(14px, 4vw, 18px);
    }

    .landing-feature-text {
        font-size: clamp(10px, 3.2vw, 13px);
    }

    /* Section 4 Responsive */
    .landing-section-4 {
        padding: 35px 12px;
    }

    .landing-section-4-container {
        gap: 30px;
    }

    .landing-section-4-title {
        font-size: clamp(22px, 7vw, 36px);
    }

    .landing-section-4-cards {
        grid-template-columns: 1fr;
        gap: clamp(18px, 4vw, 30px);
    }

    .landing-card {
        border-radius: 12px;
    }

    .landing-card-content {
        padding: clamp(14px, 3.2vw, 22px);
        gap: 8px;
    }

    .landing-card-title {
        font-size: clamp(14px, 4vw, 18px);
    }

    .landing-card-text {
        font-size: clamp(10px, 3.2vw, 13px);
    }

    /* Section 5: Feedback Responsive */
    .feedback {
        padding: 35px 12px;
    }

    .feedback-header {
        gap: 15px;
        margin-bottom: 30px;
    }

    .feedback-main-title {
        font-size: clamp(22px, 7vw, 36px);
        margin-bottom: 10px;
    }

    .feedback-subtitle {
        font-size: clamp(11px, 3.5vw, 15px);
    }

    .feedback-btn {
        padding: 8px 14px;
        font-size: clamp(10px, 3vw, 13px);
    }

    .feedback-grid {
        gap: 15px;
    }

    .feedback-image {
        height: 160px;
    }

    .feedback-content {
        padding: 16px;
    }

    .feedback-rating span {
        font-size: clamp(13px, 3.8vw, 17px);
    }

    .feedback-text {
        font-size: clamp(11px, 3.2vw, 13px);
    }

    .author-name {
        font-size: clamp(13px, 3.8vw, 16px);
    }

    .author-job {
        font-size: clamp(11px, 3.2vw, 13px);
    }

    /* Section 6: Pricing Responsive */
    .pricing {
        padding: 35px 12px;
    }

    .pricing-title {
        font-size: clamp(22px, 7vw, 36px);
        margin-bottom: 30px;
    }

    .pricing-grid {
        gap: clamp(15px, 4vw, 25px);
    }

    .pricing-card {
        padding: clamp(16px, 3.2vw, 25px) clamp(14px, 3vw, 20px);
    }

    .pricing-icon {
        width: clamp(40px, 8.5vw, 50px);
        margin-bottom: 15px;
    }

    .pricing-plan-type {
        font-size: clamp(14px, 4vw, 18px);
        margin-bottom: 18px;
    }

    .pricing-amount {
        margin-bottom: 25px;
    }

    .price-number {
        font-size: clamp(22px, 7vw, 34px);
    }

    .price-currency {
        font-size: clamp(20px, 6.5vw, 32px);
    }

    .price-period {
        font-size: clamp(11px, 3vw, 13px);
    }

    .price-note {
        font-size: clamp(10px, 2.8vw, 11px);
    }

    .pricing-features {
        margin-bottom: 25px;
    }

    .pricing-features li {
        font-size: clamp(10px, 3.2vw, 12px);
        margin-bottom: 8px;
    }

    .pricing-features .feature-icon {
        width: 18px;
        height: 18px;
        font-size: 11px;
    }

    .pricing-btn-custom {
        padding: clamp(9px, 2.2vw, 12px) clamp(16px, 3.5vw, 22px);
        font-size: clamp(12px, 3.5vw, 14px);
    }

    /* Section 7: FAQ Responsive */
    .faq-section {
        padding: 35px 12px;
    }

    .faq-container {
        flex-direction: column;
        gap: 20px;
    }

    .faq-title {
        font-size: clamp(22px, 7vw, 36px);
        width: 100%;
    }

    .faq-list {
        gap: 12px;
    }

    .faq-question {
        padding: clamp(12px, 3.2vw, 16px) clamp(14px, 3.5vw, 18px);
        gap: 12px;
    }

    .faq-question-text {
        font-size: clamp(11px, 3.5vw, 14px);
    }

    .faq-icon {
        font-size: clamp(9px, 3vw, 12px);
    }

    .faq-item.active .faq-answer {
        padding: 0 clamp(14px, 3.5vw, 18px) clamp(12px, 3.2vw, 16px);
    }

    .faq-answer p {
        font-size: clamp(10px, 3.2vw, 13px);
    }
}

/* Extra Extra Small Mobile (max-width: 320px) */
@media (max-width: 320px) {
    .landing-hero {
        padding-bottom: 95%;
    }

    .landing-hero-content {
        padding: 5% 3%;
    }

    .landing-hero-logo {
        max-width: 55%;
    }

    .landing-hero-text {
        font-size: clamp(10px, 4.2vw, 15px);
        line-height: 1.5;
    }

    .landing-hero-buttons {
        grid-template-columns: 1fr 1fr;
        gap: clamp(4px, 0.8vw, 8px);
        max-width: 100%;
    }

    .landing-btn {
        font-size: clamp(7px, 2vw, 11px);
        padding: clamp(5px, 1vw, 8px) clamp(8px, 1.5vw, 14px);
    }

    /* Section 2 Responsive */
    .landing-section-2 {
        padding: 20px 10px;
    }

    .landing-section-2-container {
        grid-template-columns: 1fr;
        border-radius: 0;
    }

    .landing-section-2-img {
        border-radius: 0;
    }

    .landing-section-2-right {
        border-radius: 0;
    }

    .landing-section-2-white-block {
        height: 8%;
        display: none;
    }

    .landing-section-2-content {
        gap: 10px;
        padding: 14px 14px;
        border-radius: 0;
    }

    .landing-section-2-title {
        font-size: clamp(14px, 5.2vw, 20px);
    }

    .landing-section-2-text {
        font-size: clamp(9px, 3.5vw, 12px);
        line-height: 1.5;
    }

    /* Section 3 Responsive */
    .landing-section-3 {
        padding: 30px 10px;
    }

    .landing-section-3-container {
        gap: 25px;
    }

    .landing-section-3-subtitle {
        font-size: clamp(10px, 3.8vw, 15px);
    }

    .landing-section-3-title {
        font-size: clamp(20px, 7.5vw, 32px);
    }

    .landing-section-3-features {
        grid-template-columns: 1fr;
        gap: clamp(20px, 4.5vw, 30px);
    }

    .landing-feature {
        gap: 8px;
    }

    .landing-feature-icon {
        width: clamp(50px, 12vw, 75px);
        height: clamp(50px, 12vw, 75px);
    }

    .landing-feature-title {
        font-size: clamp(13px, 4.2vw, 17px);
    }

    .landing-feature-text {
        font-size: clamp(9px, 3.5vw, 12px);
        line-height: 1.5;
    }

    /* Section 4 Responsive */
    .landing-section-4 {
        padding: 30px 10px;
    }

    .landing-section-4-container {
        gap: 25px;
    }

    .landing-section-4-title {
        font-size: clamp(20px, 7.5vw, 32px);
    }

    .landing-section-4-cards {
        grid-template-columns: 1fr;
        gap: clamp(15px, 3.5vw, 25px);
    }

    .landing-card {
        border-radius: 10px;
    }

    .landing-card-content {
        padding: clamp(12px, 3vw, 20px);
        gap: 6px;
    }

    .landing-card-title {
        font-size: clamp(13px, 4.2vw, 17px);
    }

    .landing-card-text {
        font-size: clamp(9px, 3.5vw, 12px);
        line-height: 1.5;
    }

    /* Section 5: Feedback Responsive */
    .feedback {
        padding: 30px 10px;
    }

    .feedback-header {
        gap: 12px;
        margin-bottom: 25px;
    }

    .feedback-main-title {
        font-size: clamp(20px, 7.5vw, 32px);
        margin-bottom: 8px;
    }

    .feedback-subtitle {
        font-size: clamp(10px, 3.8vw, 14px);
        line-height: 1.5;
    }

    .feedback-btn {
        padding: 7px 12px;
        font-size: clamp(9px, 3.2vw, 12px);
    }

    .feedback-grid {
        gap: 12px;
    }

    .feedback-image {
        height: 140px;
    }

    .feedback-content {
        padding: 14px;
    }

    .feedback-rating {
        margin-bottom: 10px;
    }

    .feedback-rating span {
        font-size: clamp(12px, 4vw, 16px);
    }

    .feedback-text {
        font-size: clamp(10px, 3.5vw, 12px);
        line-height: 1.5;
    }

    .feedback-author {
        margin-top: 10px;
    }

    .author-name {
        font-size: clamp(12px, 4vw, 15px);
    }

    .author-job {
        font-size: clamp(10px, 3.5vw, 12px);
    }

    /* Section 6: Pricing Responsive */
    .pricing {
        padding: 30px 10px;
    }

    .pricing-title {
        font-size: clamp(20px, 7.5vw, 32px);
        margin-bottom: 25px;
    }

    .pricing-grid {
        gap: clamp(12px, 3.5vw, 20px);
    }

    .pricing-card {
        padding: clamp(14px, 3vw, 22px) clamp(12px, 2.8vw, 18px);
        border-radius: 12px;
    }

    .pricing-icon {
        width: clamp(38px, 8vw, 48px);
        margin-bottom: 12px;
    }

    .pricing-plan-type {
        font-size: clamp(13px, 4.2vw, 17px);
        margin-bottom: 15px;
    }

    .pricing-amount {
        margin-bottom: 20px;
    }

    .price-main {
        gap: 6px;
    }

    .price-number {
        font-size: clamp(20px, 7.5vw, 32px);
    }

    .price-currency {
        font-size: clamp(18px, 7vw, 30px);
    }

    .price-period {
        font-size: clamp(10px, 3.2vw, 12px);
    }

    .price-note {
        font-size: clamp(9px, 3vw, 10px);
        line-height: 1.2;
    }

    .pricing-features {
        margin-bottom: 20px;
    }

    .pricing-features li {
        font-size: clamp(9px, 3.5vw, 11px);
        margin-bottom: 7px;
        line-height: 1.3;
    }

    .pricing-features .feature-icon {
        width: 16px;
        height: 16px;
        font-size: 10px;
        margin-right: 8px;
    }

    .pricing-btn-custom {
        padding: clamp(8px, 2vw, 11px) clamp(14px, 3.2vw, 20px);
        font-size: clamp(11px, 3.8vw, 13px);
        border-radius: 6px;
    }

    /* Section 7: FAQ Responsive */
    .faq-section {
        padding: 30px 10px;
    }

    .faq-title {
        font-size: clamp(20px, 7.5vw, 32px);
        margin-bottom: 25px;
    }

    .faq-list {
        gap: 10px;
    }

    .faq-item {
        border-radius: 10px;
    }

    .faq-question {
        padding: clamp(10px, 3vw, 14px) clamp(12px, 3.2vw, 16px);
        gap: 10px;
    }

    .faq-question-text {
        font-size: clamp(10px, 3.8vw, 13px);
        line-height: 1.4;
    }

    .faq-icon {
        font-size: clamp(8px, 3.2vw, 11px);
    }

    .faq-item.active .faq-answer {
        padding: 0 clamp(12px, 3.2vw, 16px) clamp(10px, 3vw, 14px);
    }

    .faq-answer p {
        font-size: clamp(9px, 3.5vw, 12px);
        line-height: 1.4;
    }
}

/* Large Desktop (min-width: 1920px) */
@media (min-width: 1920px) {
    .landing-hero {
        padding-bottom: 47.17%;
    }

    .landing-hero-content {
        gap: 4%;
    }

    .landing-hero-logo {
        max-width: 26%;
    }

    .landing-hero-text {
        font-size: clamp(34px, 2.45vw, 39px);
    }

    /* Section 2 Responsive */
    .landing-section-2 {
        padding: 80px 20px;
    }

    .landing-section-2-left {
        padding-right: 0;
    }

    .landing-section-2-img {
        border-radius: 24px 0 0 24px;
    }

    .landing-section-2-right {
        border-radius: 0 24px 24px 0;
    }

    .landing-section-2-white-block {
        border-radius: 0 24px 0 0;
    }

    .landing-section-2-content {
        padding: 40px 60px 50px 60px;
        gap: 28px;
    }

    .landing-section-2-title {
        font-size: clamp(40px, 3.8vw, 60px);
    }

    .landing-section-2-text {
        font-size: clamp(16px, 1.4vw, 22px);
        line-height: 1.6;
    }

    /* Section 3 Responsive */
    .landing-section-3 {
        padding: 100px 20px;
    }

    .landing-section-3-container {
        gap: 70px;
    }

    .landing-section-3-subtitle {
        font-size: clamp(20px, 2vw, 32px);
    }

    .landing-section-3-title {
        font-size: clamp(50px, 5vw, 80px);
    }

    .landing-section-3-features {
        gap: clamp(50px, 5.5vw, 90px) clamp(80px, 9vw, 140px);
    }

    .landing-feature-icon {
        width: clamp(100px, 11vw, 160px);
        height: clamp(100px, 11vw, 160px);
    }

    .landing-feature-title {
        font-size: clamp(22px, 2.2vw, 32px);
    }

    .landing-feature-text {
        font-size: clamp(15px, 1.4vw, 20px);
    }

    /* Section 4 Responsive */
    .landing-section-4 {
        padding: 100px 20px;
    }

    .landing-section-4-container {
        gap: 70px;
    }

    .landing-section-4-title {
        font-size: clamp(50px, 5vw, 80px);
    }

    .landing-section-4-cards {
        gap: clamp(40px, 3.5vw, 60px);
    }

    .landing-card {
        border-radius: 24px;
    }

    .landing-card-content {
        padding: clamp(30px, 3vw, 45px);
        gap: 15px;
    }

    .landing-card-title {
        font-size: clamp(22px, 2.2vw, 28px);
    }

    .landing-card-text {
        font-size: clamp(15px, 1.4vw, 18px);
    }

    /* Section 5: Feedback Responsive */
    .feedback {
        padding: 100px 20px;
    }

    .feedback-header {
        margin-bottom: 70px;
    }

    .feedback-main-title {
        font-size: clamp(50px, 5vw, 70px);
    }

    .feedback-subtitle {
        font-size: clamp(18px, 1.6vw, 24px);
    }

    .feedback-btn {
        padding: 14px 28px;
        font-size: clamp(16px, 1.3vw, 19px);
    }

    .feedback-grid {
        gap: 35px;
    }

    .feedback-image {
        width: 200px;
    }

    .feedback-content {
        padding: 25px;
    }

    .feedback-rating span {
        font-size: clamp(20px, 1.7vw, 24px);
    }

    .feedback-text {
        font-size: clamp(14px, 1.2vw, 17px);
    }

    .author-name {
        font-size: clamp(17px, 1.4vw, 20px);
    }

    .author-job {
        font-size: clamp(14px, 1.2vw, 17px);
    }

    /* Section 6: Pricing Responsive */
    .pricing {
        padding: 100px 20px;
    }

    .pricing-title {
        font-size: clamp(50px, 5vw, 70px);
        margin-bottom: 70px;
    }

    .pricing-grid {
        gap: clamp(35px, 3.5vw, 50px);
        max-width: 1600px;
    }

    .pricing-card {
        padding: clamp(35px, 3.5vw, 50px) clamp(28px, 3vw, 40px);
    }

    .pricing-icon {
        width: clamp(55px, 6.5vw, 70px);
    }

    .pricing-plan-type {
        font-size: clamp(22px, 2.2vw, 28px);
    }

    .price-number {
        font-size: clamp(38px, 4vw, 50px);
    }

    .price-currency {
        font-size: clamp(36px, 3.8vw, 48px);
    }

    .price-period {
        font-size: clamp(13px, 1.2vw, 16px);
    }

    .price-note {
        font-size: clamp(12px, 1.1vw, 14px);
    }

    .pricing-features li {
        font-size: clamp(13px, 1.2vw, 16px);
        margin-bottom: 14px;
    }

    .pricing-features .feature-icon {
        width: 22px;
        height: 22px;
        font-size: 13px;
    }

    .pricing-btn-custom {
        padding: clamp(14px, 1.7vw, 18px) clamp(28px, 3vw, 35px);
        font-size: clamp(15px, 1.4vw, 18px);
    }
}

/* =============================================================================
   ACCESSIBILITY & PRINT
   ============================================================================= */

/* Focus states for accessibility */
.landing-btn:focus-visible {
    outline: 3px solid #FAE5B6;
    outline-offset: 4px;
}

/* Reduced motion for accessibility */
@media (prefers-reduced-motion: reduce) {
    .landing-hero-logo,
    .landing-hero-text,
    .landing-hero-buttons,
    .landing-btn {
        animation: none;
    }

    .landing-btn {
        transition: none;
    }
}

/* Print styles */
@media print {
    .landing-hero {
        background: white;
        min-height: auto;
        page-break-inside: avoid;
    }

    .landing-btn {
        display: none;
    }
}