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

/* Prevent image download and right-click */
img, iframe {
    -webkit-user-select: none;
    -moz-user-select: none;
    -ms-user-select: none;
    user-select: none;
    -webkit-user-drag: none;
    -khtml-user-drag: none;
    -moz-user-drag: none;
    -o-user-drag: none;
    user-drag: none;
    pointer-events: auto;
}

body {
    font-family: 'Poppins', 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    line-height: 1.6;
    color: #333;
    background: linear-gradient(180deg, #87CEEB 0%, #E0F6FF 50%, #B8E5EA 100%);
    min-height: 100vh;
    overflow-x: hidden;
}

/* Sky Decorations */
.sky-sun {
    position: absolute;
    top: 210px;
    right: 80px;
    width: 150px;
    height: 150px;
    background-image: url('/images/sun.png');
    background-size: 100% 100%;
    background-repeat: no-repeat;
    z-index: 9999;
    pointer-events: none;
}

.sky-cloud {
    position: absolute;
    background-image: url('/images/cloud.png');
    background-size: contain;
    background-repeat: no-repeat;
    z-index: 9998;
    pointer-events: none;
}

.cloud-1 {
    top: 180px;
    left: 8%;
    width: 100px;
    height: 70px;
    opacity: 0.9;
}

.cloud-2 {
    top: 195px;
    left: 18%;
    width: 110px;
    height: 75px;
    opacity: 0.85;
}

.cloud-3 {
    top: 185px;
    left: 30%;
    width: 105px;
    height: 72px;
    opacity: 0.88;
}

.cloud-4 {
    top: 190px;
    left: 42%;
    width: 95px;
    height: 68px;
    opacity: 0.87;
}

.cloud-5 {
    top: 240px;
    left: 10%;
    width: 105px;
    height: 73px;
    opacity: 0.86;
}

.cloud-6 {
    top: 255px;
    left: 22%;
    width: 100px;
    height: 70px;
    opacity: 0.84;
}

.cloud-7 {
    top: 245px;
    left: 34%;
    width: 108px;
    height: 74px;
    opacity: 0.89;
}

.cloud-8 {
    top: 250px;
    left: 46%;
    width: 102px;
    height: 71px;
    opacity: 0.83;
}

html::before,
html::after,
main::before,
main::after,
.hero::before,
.hero::after,
.info-box::before,
.info-box::after,
.letter-groups-grid::before {
    content: none;
}

.container {
    position: relative;
    z-index: 1;
    max-width: 1400px;
    margin: 0 auto;
    padding: 0 20px;
}

/* Header */
header {
    background: linear-gradient(135deg, #4D96FF 0%, #6BAFFF 100%);
    padding: 1.5rem 0;
    position: relative;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
}

.header-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.header-right {
    display: flex;
    align-items: center;
    gap: 2rem;
    margin-left: auto;
}

.logo {
    display: flex;
    align-items: center;
}

.logo a {
    display: block;
}

.logo-image {
    height: 80px;
    width: auto;
}

.logo-s { color: #FF6B9D; }
.logo-e { color: #FFB347; }
.logo-v { color: #98D8C8; }
.logo-g { color: #6BCB77; }
.logo-i { color: #4D96FF; }
.logo-y { color: #FF6B9D; }
.logo-l { color: #FFB347; }
.logo-e2 { color: #98D8C8; }
.logo-o { color: #6BCB77; }
.logo-k { color: #4D96FF; }
.logo-u { color: #FF6B9D; }

.nav-link {
    color: white;
    text-decoration: none;
    font-weight: 600;
    font-size: 1.1rem;
    transition: color 0.3s ease;
}

.nav-link:hover {
    color: #FFE66D;
}

.btn-buy {
    background: white;
    color: #4D96FF;
    padding: 0.8rem 2rem;
    border-radius: 30px;
    text-decoration: none;
    font-weight: 600;
    transition: all 0.3s ease;
    box-shadow: 0 4px 15px rgba(255, 255, 255, 0.3);
}

.btn-buy:hover {
    background: #FFE66D;
    color: #4D96FF;
    box-shadow: 0 6px 20px rgba(255, 230, 109, 0.4);
    transform: translateY(-2px);
}

/* Hero Section */
.hero {
    padding: 3rem 0;
}

.hero-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 3rem;
    align-items: center;
}

.hero-left {
    display: flex;
    flex-direction: column;
    gap: 2rem;
}

.info-box {
    background: white;
    border: 3px dashed #FFB347;
    border-radius: 20px;
    padding: 2.5rem;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
}

.info-box h2 {
    color: #FF6B9D;
    font-size: 2rem;
    margin-bottom: 1.5rem;
    text-align: center;
    font-weight: 700;
}

.info-box p {
    color: #4D96FF;
    font-size: 1rem;
    line-height: 1.8;
    margin-bottom: 1rem;
    text-align: center;
}

.info-box strong {
    color: #4D96FF;
    font-weight: 700;
}

.highlight-green {
    color: #6BCB77;
    font-weight: 600;
}

.highlight-purple {
    color: #9B59B6;
    font-weight: 600;
}

.emoji-line {
    text-align: center;
    font-size: 1.5rem;
    margin-top: 1rem;
}

.btn-letters {
    background: #4D96FF;
    color: white;
    padding: 1rem 2.5rem;
    border-radius: 30px;
    text-decoration: none;
    font-weight: 700;
    font-size: 1.2rem;
    text-align: center;
    transition: all 0.3s ease;
    box-shadow: 0 6px 20px rgba(77, 150, 255, 0.3);
    align-self: center;
}

.btn-letters:hover {
    background: #FF6B9D;
    box-shadow: 0 8px 25px rgba(255, 107, 157, 0.5);
    transform: translateY(-3px);
}

.hero-right {
    display: flex;
    justify-content: center;
    align-items: center;
}

.hero-image {
    width: 100%;
    max-width: 600px;
    border-radius: 20px;
    box-shadow: 0 15px 40px rgba(0, 0, 0, 0.15);
}

/* Main Content */
main {
    padding: 0;
}

.welcome {
    background: white;
    padding: 2rem;
    border-radius: 10px;
    text-align: center;
    margin-bottom: 2rem;
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
    display: none;
}

.welcome h2 {
    color: #667eea;
    margin-bottom: 1rem;
    font-size: 2rem;
}

.welcome p {
    font-size: 1.1rem;
    color: #666;
}

/* Letter Groups Section */
.letter-groups-section {
    padding: 3rem 0;
}

.groups-banner {
    display: block;
    max-width: 300px;
    width: 100%;
    height: auto;
    margin: 0 auto 3rem;
    border-radius: 15px;
}

.letter-groups-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 2rem;
    padding: 1rem;
    margin-bottom: 2rem;
}

.group-card {
    background: transparent;
    border-radius: 0;
    overflow: visible;
    text-decoration: none;
    transition: all 0.3s ease;
    box-shadow: none;
    display: block;
}

.group-card:hover {
    transform: scale(1.05);
    box-shadow: none;
}

.group-image {
    width: 100%;
    height: auto;
    display: block;
}

.okudum-card {
    background: transparent;
    display: block;
    transition: all 0.3s ease;
}

.okudum-card:hover {
    transform: scale(1.05);
}

/* Letters Grid (for group pages) */
.letters-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(100px, 1fr));
    gap: 1rem;
    padding: 3rem 1rem;
}

.letter-card {
    display: block;
    text-decoration: none;
    transition: all 0.3s ease;
}

.letter-card img {
    width: 100%;
    height: auto;
    display: block;
    transition: transform 0.3s ease;
}

.letter-card:hover img {
    transform: translateY(-8px) scale(1.05);
}

/* Letter Page */
.letter-page {
    background: white;
    padding: 3rem;
    border-radius: 10px;
    margin-bottom: 2rem;
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
}

/* Letter Navigation Between Letters */
.letter-navigation {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin: 0 0 30px 0;
    padding: 15px 20px;
    background: linear-gradient(135deg, #f5f7fa 0%, #c3cfe2 100%);
    border-radius: 15px;
    box-shadow: 0 4px 6px rgba(0,0,0,0.1);
}

.letter-nav-btn {
    padding: 12px 24px;
    background: linear-gradient(135deg, #4D96FF 0%, #6BAFFF 100%);
    color: white;
    text-decoration: none;
    border-radius: 10px;
    font-weight: 600;
    transition: all 0.3s ease;
    box-shadow: 0 2px 4px rgba(0,0,0,0.1);
    display: inline-block;
    font-size: 1rem;
}

.letter-nav-btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 8px rgba(0,0,0,0.2);
    background: linear-gradient(135deg, #3d7bd9 0%, #5a9fe6 100%);
}

.letter-nav-btn.disabled {
    background: #cccccc;
    cursor: not-allowed;
    opacity: 0.6;
}

.letter-nav-btn.disabled:hover {
    transform: none;
    box-shadow: 0 2px 4px rgba(0,0,0,0.1);
}

.letter-nav-btn.prev-btn::before {
    content: "← ";
}

.letter-nav-btn.next-btn::after {
    content: " →";
}

.letter-main-title {
    color: #4D96FF;
    font-size: 3rem;
    text-align: center;
    margin-bottom: 2rem;
    font-weight: 700;
}

.letter-visual {
    text-align: center;
    margin-bottom: 1.5rem;
}

.letter-visual .letter-image {
    max-width: 300px;
    width: 100%;
    height: auto;
}

/* Content Sections */
.content-section {
    margin-bottom: 3rem;
    padding: 2rem;
    background: #F8F9FA;
    border-radius: 10px;
}

.section-title {
    color: #FF6B9D;
    font-size: 1.8rem;
    font-weight: 600;
    margin-bottom: 1.5rem;
    text-align: center;
}

/* Video Containers */
.video-container {
    position: relative;
    width: 100%;
    max-width: 800px;
    margin: 0 auto;
}

.content-video {
    width: 100%;
    border-radius: 10px;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.1);
}

.youtube-video {
    width: 100%;
    height: 450px;
    border-radius: 10px;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.1);
}

/* Games Grid */
.games-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
    margin-top: 2rem;
}

.game-item {
    background: white;
    padding: 1.5rem;
    border-radius: 10px;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.1);
}

.game-item h3 {
    color: #4D96FF;
    font-size: 1.3rem;
    margin-bottom: 1rem;
    text-align: center;
}

.h5p-game {
    width: 100%;
    height: 400px;
    border-radius: 8px;
    border: none;
}

/* Group Page */
.group-page {
    padding: 2rem 0;
}

.group-title {
    text-align: center;
    color: #4D96FF;
    font-size: 2.5rem;
    font-weight: 700;
    margin-bottom: 3rem;
}

/* Group Navigation */
.group-navigation {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin: 3rem 0 2rem 0;
    gap: 1rem;
}

.group-nav-btn {
    display: inline-block;
    background: #4D96FF;
    color: white;
    padding: 1rem 2.5rem;
    text-decoration: none;
    border-radius: 30px;
    transition: all 0.3s ease;
    font-weight: 600;
    font-size: 1.1rem;
    box-shadow: 0 4px 15px rgba(77, 150, 255, 0.3);
}

.group-nav-btn:hover {
    background: #FF6B9D;
    box-shadow: 0 6px 20px rgba(255, 107, 157, 0.4);
    transform: translateY(-2px);
}

.prev-btn {
    margin-right: auto;
}

.next-btn {
    margin-left: auto;
}

.start-point,
.end-point {
    background: #6BCB77;
    cursor: default;
    opacity: 0.9;
}

.start-point:hover,
.end-point:hover {
    background: #6BCB77;
    transform: none;
}

.back-button {
    display: inline-block;
    background: #4D96FF;
    color: white;
    padding: 1rem 2rem;
    text-decoration: none;
    border-radius: 30px;
    transition: all 0.3s ease;
    margin-top: 2rem;
    font-weight: 600;
}

.back-button:hover {
    background: #FF6B9D;
    transform: translateY(-2px);
}

/* FAQ Section */
.faq-section {
    margin: 4rem 0;
    padding: 3rem 2rem;
    background: rgba(255, 255, 255, 0.9);
    border-radius: 30px;
    box-shadow: 0 10px 40px rgba(0, 0, 0, 0.1);
}

.faq-title {
    text-align: center;
    font-size: 2.5rem;
    color: #667eea;
    margin-bottom: 2.5rem;
    font-weight: 700;
}

.faq-container {
    max-width: 900px;
    margin: 0 auto;
}

.faq-item {
    background: white;
    border-radius: 15px;
    margin-bottom: 1.5rem;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.08);
    overflow: hidden;
    transition: all 0.3s ease;
}

.faq-item:hover {
    transform: translateY(-3px);
    box-shadow: 0 8px 25px rgba(0, 0, 0, 0.12);
}

.faq-question {
    width: 100%;
    background: transparent;
    border: none;
    padding: 1.5rem 2rem;
    text-align: left;
    cursor: pointer;
    display: flex;
    justify-content: space-between;
    align-items: center;
    font-size: 1.1rem;
    font-weight: 600;
    color: #333;
    transition: all 0.3s ease;
}

.faq-question:hover {
    color: #667eea;
}

.faq-icon {
    font-size: 1.8rem;
    font-weight: 300;
    color: #667eea;
    transition: transform 0.3s ease;
    flex-shrink: 0;
    margin-left: 1rem;
}

.faq-item.active .faq-icon {
    transform: rotate(45deg);
}

.faq-answer {
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.3s ease, padding 0.3s ease;
    background: linear-gradient(to right, #f8f9ff, #ffffff);
}

.faq-item.active .faq-answer {
    max-height: 500px;
    padding: 0 2rem 1.5rem 2rem;
}

.faq-answer p {
    font-size: 1rem;
    line-height: 1.8;
    color: #555;
    margin-bottom: 0.8rem;
}

.faq-answer p:last-child {
    margin-bottom: 0;
}

.faq-answer ol {
    margin: 1rem 0;
    padding-left: 1.5rem;
    color: #555;
}

.faq-answer ol li {
    font-size: 1rem;
    line-height: 1.8;
    margin-bottom: 0.5rem;
}

.faq-answer a {
    color: #667eea;
    text-decoration: none;
    font-weight: 600;
    transition: color 0.3s ease;
}

.faq-answer a:hover {
    color: #764ba2;
}

/* Footer */
footer {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    padding: 3rem 0 1.5rem;
    margin-top: 4rem;
    scroll-margin-top: 20px;
}

.footer-main {
    display: grid;
    grid-template-columns: 2fr 1fr 1.5fr;
    gap: 3rem;
    margin-bottom: 2rem;
    padding-bottom: 2rem;
    border-bottom: 1px solid rgba(255, 255, 255, 0.2);
}

.footer-column h3 {
    color: white;
    font-size: 1.2rem;
    font-weight: 700;
    margin-bottom: 1.2rem;
}

.footer-logo {
    height: 70px;
    width: auto;
    margin-bottom: 1rem;
    filter: brightness(0) invert(1);
}

.footer-description {
    color: rgba(255, 255, 255, 0.85);
    font-size: 0.95rem;
    line-height: 1.6;
    margin: 0;
}

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

.footer-links li {
    margin-bottom: 0.8rem;
}

.footer-links a {
    color: rgba(255, 255, 255, 0.85);
    text-decoration: none;
    font-size: 0.95rem;
    transition: all 0.3s ease;
}

.footer-links a:hover {
    color: white;
    padding-left: 5px;
}

.footer-contact {
    display: flex;
    flex-direction: column;
    gap: 1rem;
    margin-bottom: 1.5rem;
}

.contact-link {
    display: flex;
    align-items: center;
    gap: 0.8rem;
    color: rgba(255, 255, 255, 0.85);
    text-decoration: none;
    font-size: 0.95rem;
    transition: all 0.3s ease;
}

.contact-link:hover {
    color: white;
    transform: translateX(5px);
}

.contact-icon {
    width: 24px;
    height: 24px;
    object-fit: contain;
    filter: brightness(0) invert(1);
}

/* Promo Modal */
.promo-modal {
    display: none;
    position: fixed;
    z-index: 10000;
    left: 0;
    top: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0, 0, 0, 0.7);
    animation: fadeIn 0.3s ease;
}

.promo-modal-content {
    position: relative;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    margin: 5% auto;
    padding: 0;
    border-radius: 20px;
    width: 90%;
    max-width: 500px;
    box-shadow: 0 10px 50px rgba(0, 0, 0, 0.5);
    animation: slideDown 0.5s ease;
}

@keyframes fadeIn {
    from { opacity: 0; }
    to { opacity: 1; }
}

@keyframes slideDown {
    from {
        transform: translateY(-100px);
        opacity: 0;
    }
    to {
        transform: translateY(0);
        opacity: 1;
    }
}

.promo-close {
    position: absolute;
    right: 15px;
    top: 10px;
    color: white;
    font-size: 35px;
    font-weight: bold;
    cursor: pointer;
    z-index: 1;
    transition: all 0.3s ease;
}

.promo-close:hover {
    color: #ffeb3b;
    transform: rotate(90deg);
}

.promo-body {
    padding: 40px 30px;
    text-align: center;
    color: white;
}

.promo-title {
    font-size: 1.2rem;
    font-weight: 600;
    margin: 0 0 10px 0;
    letter-spacing: 2px;
    color: #ffeb3b;
    text-transform: uppercase;
}

.promo-brand {
    font-size: 2.5rem;
    font-weight: 700;
    margin: 0 0 10px 0;
    color: white;
    text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.3);
}

.promo-discount {
    font-size: 1.5rem;
    font-weight: 600;
    margin: 0 0 30px 0;
    color: #ffeb3b;
    text-transform: uppercase;
}

.promo-price {
    margin: 30px 0;
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 20px;
}

.old-price {
    font-size: 2rem;
    font-weight: 700;
    color: #ff5252;
    text-decoration: line-through;
    text-decoration-thickness: 3px;
    opacity: 0.8;
}

.new-price {
    font-size: 3rem;
    font-weight: 700;
    color: #4caf50;
    background: white;
    padding: 10px 30px;
    border-radius: 15px;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.2);
}

.promo-btn {
    display: inline-block;
    background: #ffeb3b;
    color: #333;
    padding: 15px 50px;
    font-size: 1.5rem;
    font-weight: 700;
    text-decoration: none;
    border-radius: 50px;
    margin-top: 20px;
    transition: all 0.3s ease;
    box-shadow: 0 5px 20px rgba(0, 0, 0, 0.3);
    text-transform: uppercase;
    letter-spacing: 1px;
}

.promo-btn:hover {
    background: #fdd835;
    transform: translateY(-3px);
    box-shadow: 0 8px 25px rgba(0, 0, 0, 0.4);
}

@media (max-width: 768px) {
    .promo-modal-content {
        width: 95%;
        margin: 10% auto;
    }

    .promo-brand {
        font-size: 2rem;
    }

    .promo-discount {
        font-size: 1.2rem;
    }

    .old-price {
        font-size: 1.5rem;
    }

    .new-price {
        font-size: 2.5rem;
        padding: 8px 20px;
    }

    .promo-btn {
        font-size: 1.2rem;
        padding: 12px 40px;
    }
}

/* Social Media Icons */
.footer-social {
    display: flex;
    gap: 1rem;
    flex-wrap: wrap;
    margin-top: 1rem;
}

.social-link {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 40px;
    height: 40px;
    background: rgba(255, 255, 255, 0.1);
    border-radius: 50%;
    transition: all 0.3s ease;
}

.social-link:hover {
    transform: translateY(-3px);
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.2);
}

/* TikTok */
.social-link:nth-child(1):hover {
    background: #000000;
}

/* Facebook */
.social-link:nth-child(2):hover {
    background: #1877F2;
}

/* X (Twitter) */
.social-link:nth-child(3):hover {
    background: #000000;
}

/* LinkedIn */
.social-link:nth-child(4):hover {
    background: #0A66C2;
}

/* YouTube */
.social-link:nth-child(5):hover {
    background: #FF0000;
}

/* Instagram */
.social-link:nth-child(6):hover {
    background: radial-gradient(circle at 30% 107%, #fdf497 0%, #fdf497 5%, #fd5949 45%, #d6249f 60%, #285AEB 90%);
}

/* Telegram */
.social-link:nth-child(7):hover {
    background: #0088cc;
}

.social-icon {
    width: 20px;
    height: 20px;
    object-fit: contain;
    filter: brightness(0) invert(1);
    transition: filter 0.3s ease;
}

.social-link:hover .social-icon {
    filter: brightness(0) invert(1) drop-shadow(0 0 2px rgba(255, 255, 255, 0.5));
}


.footer-bottom {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding-top: 1.5rem;
}

.footer-bottom p {
    color: rgba(255, 255, 255, 0.7);
    font-size: 0.9rem;
    margin: 0;
}

.footer-designer {
    text-align: right;
}

.footer-designer strong {
    color: white;
    font-weight: 700;
}

/* Responsive - Tablets and Phones */

/* Tablets (1024px and below) */
@media (max-width: 1024px) {
    /* Hide sun and clouds on tablets */
    .sky-sun,
    .sky-cloud {
        display: none !important;
    }
    
    .container {
        padding: 0 15px;
    }
    
    .header-content {
        padding-top: 0;
    }
    
    .logo-image {
        height: 70px;
    }
    
    .hero-content {
        grid-template-columns: 1fr;
        gap: 2rem;
    }
    
    .hero-right {
        order: -1;
    }
    
    .hero-image {
        max-width: 500px;
    }
    
    .letter-groups-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 1.5rem;
    }
    
    .letters-grid {
        grid-template-columns: repeat(auto-fit, minmax(90px, 1fr));
        gap: 1rem;
    }
    
    .youtube-video {
        height: 400px;
    }
    
    .games-grid {
        grid-template-columns: 1fr;
    }
    
    .footer-main {
        grid-template-columns: repeat(2, 1fr);
    }
}

/* Mobile Phones (768px and below) */
@media (max-width: 768px) {
    /* Hide sun and clouds on phones */
    .sky-sun,
    .sky-cloud {
        display: none !important;
    }
    
    body {
        font-size: 14px;
    }
    
    .container {
        padding: 0 10px;
    }
    
    /* Header */
    header {
        padding: 1rem 0;
    }
    
    .header-content {
        flex-direction: column;
        gap: 1rem;
    }
    
    .header-right {
        flex-direction: column;
        gap: 1rem;
        width: 100%;
        text-align: center;
    }
    
    nav {
        gap: 1rem;
    }
    
    .logo-image {
        height: 60px;
    }
    
    .nav-link {
        font-size: 1rem;
    }
    
    .btn-buy {
        padding: 0.6rem 1.5rem;
        font-size: 0.9rem;
    }
    
    /* Hero Section */
    .hero {
        padding: 2rem 0;
    }
    
    .hero-content {
        grid-template-columns: 1fr;
        gap: 1.5rem;
    }
    
    .hero-right {
        order: -1;
    }
    
    .hero-image {
        max-width: 100%;
    }
    
    .info-box {
        padding: 1.5rem;
    }
    
    .info-box h2 {
        font-size: 1.5rem;
        margin-bottom: 1rem;
    }
    
    .info-box p {
        font-size: 0.9rem;
    }
    
    .btn-letters {
        padding: 0.8rem 2rem;
        font-size: 1rem;
    }
    
    /* Letter Groups */
    .letter-groups-section {
        padding: 2rem 0;
    }
    
    .groups-banner {
        max-width: 200px;
        margin-bottom: 2rem;
    }
    
    .letter-groups-grid {
        grid-template-columns: 1fr;
        gap: 1.5rem;
        padding: 0.5rem;
    }
    
    /* Letters Grid */
    .letters-grid {
        grid-template-columns: repeat(auto-fit, minmax(70px, 1fr));
        padding: 2rem 0.5rem;
        gap: 0.8rem;
    }
    
    /* Letter Page */
    .letter-page {
        padding: 1.5rem;
        margin-bottom: 1rem;
    }
    
    .letter-main-title {
        font-size: 2rem;
    }
    
    .letter-visual .letter-image {
        max-width: 200px;
    }
    
    .letter-navigation {
        flex-direction: column;
        gap: 1rem;
        padding: 10px 15px;
        margin-bottom: 20px;
    }
    
    .letter-nav-btn {
        width: 100%;
        text-align: center;
        padding: 10px 20px;
        font-size: 0.9rem;
    }
    
    /* Content Sections */
    .content-section {
        padding: 1.5rem;
        margin-bottom: 2rem;
    }
    
    .section-title {
        font-size: 1.4rem;
        margin-bottom: 1rem;
    }
    
    .video-container {
        margin-bottom: 1rem;
    }
    
    .youtube-video {
        height: 250px;
    }
    
    /* Games */
    .games-grid {
        grid-template-columns: 1fr;
        gap: 1.5rem;
    }
    
    .game-item {
        padding: 1rem;
    }
    
    .game-item h3 {
        font-size: 1.1rem;
    }
    
    .h5p-game {
        height: 350px;
    }
    
    /* Group Pages */
    .group-page {
        padding: 1rem 0;
    }
    
    .group-title {
        font-size: 1.8rem;
        margin-bottom: 2rem;
    }
    
    .group-navigation {
        flex-direction: column;
        gap: 1rem;
        margin: 2rem 0 1rem 0;
    }
    
    .group-nav-btn {
        width: 100%;
        text-align: center;
        padding: 0.8rem 2rem;
        font-size: 1rem;
    }
    
    .prev-btn,
    .next-btn {
        margin: 0;
    }
    
    /* FAQ Section */
    .faq-section {
        margin: 2rem 0;
        padding: 2rem 1rem;
        border-radius: 20px;
    }
    
    .faq-title {
        font-size: 1.8rem;
        margin-bottom: 1.5rem;
    }
    
    .faq-question {
        padding: 1rem;
        font-size: 0.95rem;
    }
    
    .faq-icon {
        font-size: 1.5rem;
    }
    
    .faq-item.active .faq-answer {
        padding: 0 1rem 1rem 1rem;
    }
    
    .faq-answer p {
        font-size: 0.9rem;
    }
    
    /* Footer */
    footer {
        padding: 2rem 0 1rem;
        margin-top: 2rem;
    }
    
    .footer-main {
        grid-template-columns: 1fr;
        gap: 2rem;
        padding-bottom: 1.5rem;
    }
    
    .footer-logo {
        height: 60px;
    }
    
    .footer-column h3 {
        font-size: 1.1rem;
    }
    
    .footer-description,
    .footer-links a,
    .contact-link {
        font-size: 0.9rem;
    }
    
    .footer-bottom {
        flex-direction: column;
        gap: 1rem;
        text-align: center;
        padding-top: 1rem;
    }
    
    .footer-bottom p {
        font-size: 0.85rem;
    }
    
    .footer-designer {
        text-align: center;
    }
}

/* Small Phones (480px and below) */
@media (max-width: 480px) {
    /* Hide sun and clouds on small phones */
    .sky-sun,
    .sky-cloud {
        display: none !important;
    }
    
    body {
        font-size: 13px;
    }
    
    .logo-image {
        height: 50px;
    }
    
    .info-box {
        padding: 1.2rem;
    }
    
    .info-box h2 {
        font-size: 1.3rem;
    }
    
    .info-box p {
        font-size: 0.85rem;
    }
    
    .btn-letters {
        padding: 0.7rem 1.5rem;
        font-size: 0.9rem;
    }
    
    .letter-groups-grid,
    .letters-grid {
        gap: 0.5rem;
    }
    
    .letters-grid {
        grid-template-columns: repeat(auto-fit, minmax(60px, 1fr));
    }
    
    .letter-main-title {
        font-size: 1.5rem;
    }
    
    .section-title {
        font-size: 1.2rem;
    }
    
    .youtube-video {
        height: 200px;
    }
    
    .h5p-game {
        height: 300px;
    }
    
    .group-title {
        font-size: 1.5rem;
    }
    
    .group-nav-btn,
    .letter-nav-btn {
        padding: 0.7rem 1.5rem;
        font-size: 0.85rem;
    }
    
    .faq-title {
        font-size: 1.5rem;
    }
    
    .footer-logo {
        height: 50px;
    }
}

/* Blog Styles */
.blog-section {
    padding: 3rem 0;
}

.page-title {
    text-align: center;
    color: #4D96FF;
    font-size: 3rem;
    font-weight: 700;
    margin-bottom: 1rem;
}

.page-subtitle {
    text-align: center;
    color: #666;
    font-size: 1.2rem;
    margin-bottom: 3rem;
}

.blog-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(350px, 1fr));
    gap: 2rem;
}

.blog-card {
    background: white;
    border-radius: 20px;
    overflow: hidden;
    box-shadow: 0 5px 20px rgba(0, 0, 0, 0.1);
    transition: all 0.3s ease;
}

.blog-card:hover {
    transform: translateY(-10px);
    box-shadow: 0 10px 30px rgba(77, 150, 255, 0.2);
}

.blog-image {
    width: 100%;
    height: 250px;
    overflow: hidden;
}

.blog-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.3s ease;
}

.blog-card:hover .blog-image img {
    transform: scale(1.1);
}

.blog-content {
    padding: 1.5rem;
}

.blog-meta {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 1rem;
    font-size: 0.9rem;
}

.blog-date {
    color: #666;
}

.blog-category {
    background: linear-gradient(135deg, #4D96FF 0%, #6BCB77 100%);
    color: white;
    padding: 0.3rem 0.8rem;
    border-radius: 20px;
    font-size: 0.85rem;
    font-weight: 600;
}

.blog-title {
    color: #333;
    font-size: 1.5rem;
    font-weight: 700;
    margin-bottom: 1rem;
    line-height: 1.4;
}

.blog-excerpt {
    color: #666;
    font-size: 1rem;
    line-height: 1.6;
    margin-bottom: 1.5rem;
}

.blog-read-more {
    display: inline-block;
    color: #4D96FF;
    font-weight: 600;
    text-decoration: none;
    transition: all 0.3s ease;
}

.blog-read-more:hover {
    color: #6BCB77;
    transform: translateX(5px);
}

/* Blog Post Detail Styles */
.blog-post {
    max-width: 800px;
    margin: 0 auto;
    padding: 3rem 1rem;
}

.blog-post-header {
    margin-bottom: 2rem;
}

.blog-post-title {
    color: #4D96FF;
    font-size: 2.5rem;
    font-weight: 700;
    margin-bottom: 1rem;
    line-height: 1.3;
}

.blog-post-meta {
    display: flex;
    gap: 1.5rem;
    color: #666;
    font-size: 1rem;
    margin-bottom: 2rem;
}

.blog-post-image {
    width: 100%;
    max-height: 400px;
    object-fit: cover;
    border-radius: 20px;
    margin-bottom: 2rem;
}

.blog-post-content {
    color: #333;
    font-size: 1.1rem;
    line-height: 1.8;
}

.blog-post-content h2 {
    color: #4D96FF;
    font-size: 1.8rem;
    margin: 2rem 0 1rem;
}

.blog-post-content h3 {
    color: #FF6B6B;
    font-size: 1.4rem;
    margin: 1.5rem 0 1rem;
}

.blog-post-content p {
    margin-bottom: 1.5rem;
}

.blog-post-content ul,
.blog-post-content ol {
    margin: 1.5rem 0;
    padding-left: 2rem;
}

.blog-post-content li {
    margin-bottom: 0.8rem;
}

.blog-back-button {
    display: inline-block;
    margin-bottom: 2rem;
    padding: 0.8rem 1.5rem;
    background: linear-gradient(135deg, #4D96FF 0%, #6BCB77 100%);
    color: white;
    text-decoration: none;
    border-radius: 50px;
    font-weight: 600;
    transition: all 0.3s ease;
}

.blog-back-button:hover {
    transform: translateY(-3px);
    box-shadow: 0 6px 20px rgba(77, 150, 255, 0.4);
}

@media (max-width: 768px) {
    .blog-grid {
        grid-template-columns: 1fr;
    }
    
    .page-title {
        font-size: 2rem;
    }
    
    .page-subtitle {
        font-size: 1rem;
    }
    
    .blog-post-title {
        font-size: 1.8rem;
    }
    
    .blog-post-content {
        font-size: 1rem;
    }
}

/* Pagination Styles */
.pagination {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 0.5rem;
    margin-top: 3rem;
    flex-wrap: wrap;
}

.pagination-btn {
    padding: 0.8rem 1.2rem;
    background: white;
    border: 2px solid #4D96FF;
    color: #4D96FF;
    border-radius: 10px;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
    font-size: 1rem;
}

.pagination-btn:hover {
    background: #4D96FF;
    color: white;
    transform: translateY(-2px);
}

.pagination-btn.active {
    background: linear-gradient(135deg, #4D96FF 0%, #6BCB77 100%);
    color: white;
    border-color: transparent;
}

.pagination-btn:disabled {
    opacity: 0.5;
    cursor: not-allowed;
}

@media (max-width: 768px) {
    .pagination-btn {
        padding: 0.6rem 1rem;
        font-size: 0.9rem;
    }
}

/* Blog Post Detail Page Styles */
.blog-post-detail {
    max-width: 900px;
    margin: 2rem auto;
    background: white;
    border-radius: 20px;
    padding: 3rem;
    box-shadow: 0 10px 40px rgba(0, 0, 0, 0.1);
}

.back-link {
    display: inline-block;
    color: #4D96FF;
    text-decoration: none;
    font-weight: 600;
    margin-bottom: 1.5rem;
    transition: all 0.3s ease;
}

.back-link:hover {
    color: #6BCB77;
    transform: translateX(-5px);
}

.blog-post-detail .blog-post-header {
    border-bottom: 3px solid #E0F6FF;
    padding-bottom: 2rem;
    margin-bottom: 2rem;
}

.blog-post-detail .blog-meta {
    display: flex;
    gap: 1rem;
    margin: 1rem 0 1.5rem 0;
}

.blog-post-detail .blog-post-title {
    color: #333;
    font-size: 2.5rem;
    font-weight: 700;
    line-height: 1.3;
    margin: 0;
}

.blog-post-detail .blog-post-image {
    width: 100%;
    height: 400px;
    border-radius: 15px;
    overflow: hidden;
    margin-bottom: 2.5rem;
}

.blog-post-detail .blog-post-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.blog-post-detail .blog-post-content {
    color: #444;
    font-size: 1.1rem;
    line-height: 1.8;
}

.blog-post-detail .blog-post-content .lead {
    font-size: 1.3rem;
    color: #555;
    font-weight: 500;
    line-height: 1.7;
    margin-bottom: 2rem;
    padding: 1.5rem;
    background: #F8F9FA;
    border-left: 4px solid #4D96FF;
    border-radius: 5px;
}

.blog-post-detail .blog-post-content h2 {
    color: #4D96FF;
    font-size: 1.9rem;
    font-weight: 700;
    margin-top: 2.5rem;
    margin-bottom: 1rem;
    padding-bottom: 0.5rem;
    border-bottom: 2px solid #E0F6FF;
}

.blog-post-detail .blog-post-content h3 {
    color: #6BCB77;
    font-size: 1.5rem;
    font-weight: 600;
    margin-top: 2rem;
    margin-bottom: 1rem;
}

.blog-post-detail .blog-post-content p {
    margin-bottom: 1.5rem;
    text-align: justify;
}

.blog-post-detail .blog-post-content ul,
.blog-post-detail .blog-post-content ol {
    margin: 1.5rem 0;
    padding-left: 2.5rem;
}

.blog-post-detail .blog-post-content li {
    margin-bottom: 1rem;
    line-height: 1.7;
}

.blog-post-detail .blog-post-content blockquote {
    background: #FFF9E6;
    border-left: 4px solid #FFD93D;
    padding: 1.5rem;
    margin: 2rem 0;
    border-radius: 5px;
    font-style: italic;
}

.blog-post-detail .blog-post-content strong {
    color: #333;
    font-weight: 600;
}

.blog-conclusion {
    background: linear-gradient(135deg, rgba(77, 150, 255, 0.1) 0%, rgba(107, 203, 119, 0.1) 100%);
    padding: 2rem;
    border-radius: 15px;
    margin: 3rem 0 2rem 0;
    border: 2px solid #E0F6FF;
}

.blog-conclusion h3 {
    color: #4D96FF !important;
    margin-top: 0 !important;
    margin-bottom: 1rem;
}

.blog-conclusion p {
    margin-bottom: 0;
}

.blog-nav {
    display: flex;
    justify-content: space-between;
    gap: 1rem;
    margin-top: 3rem;
    padding-top: 2rem;
    border-top: 2px solid #E0F6FF;
}

.blog-nav a {
    flex: 1;
    padding: 1.2rem 1.5rem;
    background: white;
    border: 2px solid #4D96FF;
    color: #4D96FF;
    text-decoration: none;
    border-radius: 10px;
    font-weight: 600;
    text-align: center;
    transition: all 0.3s ease;
}

.blog-nav a:hover {
    background: linear-gradient(135deg, #4D96FF 0%, #6BCB77 100%);
    color: white;
    transform: translateY(-3px);
    box-shadow: 0 5px 15px rgba(77, 150, 255, 0.3);
}

.blog-nav .prev-post {
    text-align: left;
}

.blog-nav .next-post {
    text-align: right;
}

@media (max-width: 768px) {
    .blog-post-detail {
        padding: 2rem 1.5rem;
        margin: 1rem;
    }
    
    .blog-post-detail .blog-post-title {
        font-size: 1.8rem;
    }
    
    .blog-post-detail .blog-post-content {
        font-size: 1rem;
    }
    
    .blog-post-detail .blog-post-content .lead {
        font-size: 1.1rem;
        padding: 1rem;
    }
    
    .blog-post-detail .blog-post-content h2 {
        font-size: 1.5rem;
    }
    
    .blog-post-detail .blog-post-content h3 {
        font-size: 1.3rem;
    }
    
    .blog-post-detail .blog-post-image {
        height: 250px;
    }
    
    .blog-nav {
        flex-direction: column;
    }
    
    .blog-nav .prev-post,
    .blog-nav .next-post {
        text-align: center;
    }
}