/* ===================================
   DENTPURE - MEDICAL PROFESSIONAL THEME
   Mobile-First Responsive Design
   =================================== */

/* ===================================
   1. CSS RESET & BASE STYLES
   =================================== */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    -webkit-tap-highlight-color: transparent;
}

html {
    font-size: 16px;
    scroll-behavior: smooth;
    -webkit-text-size-adjust: 100%;
    -ms-text-size-adjust: 100%;
}

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    line-height: 1.6;
    color: #333;
    background-color: #ffffff;
    overflow-x: hidden;
}

img {
    max-width: 100%;
    height: auto;
    display: block;
}

a {
    text-decoration: none;
    color: inherit;
}

button {
    border: none;
    background: none;
    cursor: pointer;
    font-family: inherit;
}

input, select, textarea {
    font-size: 16px;
}

/* ===================================
   2. CONTAINER & LAYOUT
   =================================== */
.container {
    width: 100%;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

@media (min-width: 768px) {
    .container {
        padding: 0 40px;
    }
}

@media (min-width: 1024px) {
    .container {
        padding: 0 60px;
    }
}

/* ===================================
   3. NAVIGATION
   =================================== */
.header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    background: #ffffff;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
    z-index: 1000;
    transition: all 0.3s ease;
}

.header.scrolled {
    padding: 10px 0;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.15);
}

.nav-container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 15px 20px;
    max-width: 1200px;
    margin: 0 auto;
}

.nav-logo {
    font-size: 28px;
    font-weight: 700;
    color: #1E40AF;
}

.logo-text {
    display: inline-block;
}

.logo-accent {
    color: #3B82F6;
}

.nav-toggle {
    display: flex;
    flex-direction: column;
    gap: 4px;
    cursor: pointer;
    z-index: 1001;
}

.nav-toggle span {
    width: 25px;
    height: 3px;
    background: #1E40AF;
    border-radius: 2px;
    transition: all 0.3s ease;
}

.nav-toggle.active span:nth-child(1) {
    transform: rotate(45deg) translate(5px, 5px);
}

.nav-toggle.active span:nth-child(2) {
    opacity: 0;
}

.nav-toggle.active span:nth-child(3) {
    transform: rotate(-45deg) translate(7px, -6px);
}

.nav-menu {
    position: fixed;
    top: 0;
    right: -100%;
    width: 280px;
    height: 100vh;
    background: #ffffff;
    list-style: none;
    padding: 80px 30px 30px;
    box-shadow: -5px 0 20px rgba(0, 0, 0, 0.1);
    transition: right 0.3s ease;
    z-index: 999;
}

.nav-menu.active {
    right: 0;
}

.nav-menu li {
    margin-bottom: 20px;
}

.nav-link {
    display: block;
    padding: 12px 0;
    color: #333;
    font-size: 16px;
    font-weight: 500;
    transition: color 0.3s ease;
}

.nav-link:hover {
    color: #3B82F6;
}

.cta-btn-nav {
    display: inline-block;
    padding: 12px 24px;
    background: linear-gradient(135deg, #1E40AF 0%, #3B82F6 100%);
    color: #ffffff;
    border-radius: 25px;
    font-weight: 600;
    text-align: center;
    transition: all 0.3s ease;
}

.cta-btn-nav:hover {
    transform: scale(1.05);
    box-shadow: 0 4px 15px rgba(30, 64, 175, 0.4);
}

@media (min-width: 768px) {
    .nav-toggle {
        display: none;
    }

    .nav-menu {
        position: static;
        width: auto;
        height: auto;
        flex-direction: row;
        padding: 0;
        box-shadow: none;
        display: flex;
        align-items: center;
        gap: 30px;
    }

    .nav-menu li {
        margin-bottom: 0;
    }

    .nav-link {
        padding: 8px 0;
    }
}

/* ===================================
   4. HERO SECTION
   =================================== */
.hero-section {
    padding: 100px 0 60px;
    background: linear-gradient(135deg, #E0F2FE 0%, #ffffff 100%);
}

.hero-grid {
    display: flex;
    flex-direction: column;
    gap: 40px;
    align-items: center;
}

.hero-image {
    width: 100%;
    max-width: 400px;
}

.product-hero-img {
    width: 100%;
    height: auto;
    animation: float 3s ease-in-out infinite;
}

@keyframes float {
    0%, 100% {
        transform: translateY(0);
    }
    50% {
        transform: translateY(-20px);
    }
}

.hero-content {
    text-align: center;
}

.hero-title {
    font-size: 32px;
    font-weight: 700;
    color: #1E40AF;
    margin-bottom: 20px;
    line-height: 1.2;
}

.hero-description {
    font-size: 16px;
    line-height: 1.8;
    color: #555;
    margin-bottom: 20px;
}

.cta-button {
    display: inline-block;
    padding: 16px 32px;
    background: linear-gradient(135deg, #1E40AF 0%, #3B82F6 100%);
    color: #ffffff;
    font-size: 18px;
    font-weight: 600;
    border-radius: 30px;
    transition: all 0.3s ease;
    box-shadow: 0 4px 15px rgba(30, 64, 175, 0.3);
    min-height: 48px;
    text-align: center;
}

.cta-button:hover {
    transform: scale(1.05);
    box-shadow: 0 6px 20px rgba(30, 64, 175, 0.4);
}

.cta-large {
    width: 100%;
    max-width: 400px;
}

.pulse-animation {
    animation: pulse 2s ease-in-out infinite;
}

@keyframes pulse {
    0%, 100% {
        transform: scale(1);
    }
    50% {
        transform: scale(1.05);
    }
}

@media (min-width: 768px) {
    .hero-section {
        padding: 120px 0 80px;
    }

    .hero-grid {
        flex-direction: row;
        gap: 60px;
    }

    .hero-image {
        flex: 1;
    }

    .hero-content {
        flex: 1;
        text-align: left;
    }

    .hero-title {
        font-size: 42px;
    }

    .hero-description {
        font-size: 18px;
    }

    .cta-large {
        width: auto;
    }
}

@media (min-width: 1024px) {
    .hero-title {
        font-size: 48px;
    }
}

/* ===================================
   5. ANIMATIONS
   =================================== */
.animate-fade-in {
    animation: fadeIn 1s ease-in;
}

.animate-slide-in {
    animation: slideIn 1s ease-out;
}

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

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

.fade-in-scroll {
    opacity: 0;
    transform: translateY(30px);
    transition: all 0.6s ease;
}

.fade-in-scroll.visible {
    opacity: 1;
    transform: translateY(0);
}

/* ===================================
   6. WHY CHOOSE US SECTION
   =================================== */
.why-choose-section {
    padding: 60px 0;
    background: #ffffff;
}

.section-title {
    font-size: 32px;
    font-weight: 700;
    color: #1E40AF;
    text-align: center;
    margin-bottom: 40px;
}

.features-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: 30px;
}

.feature-card {
    background: #F0F9FF;
    padding: 30px;
    border-radius: 15px;
    text-align: center;
    transition: all 0.3s ease;
    border: 2px solid transparent;
}

.feature-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 30px rgba(30, 64, 175, 0.15);
    border-color: #3B82F6;
}

.feature-icon {
    width: 80px;
    height: 80px;
    margin: 0 auto 20px;
}

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

.feature-title {
    font-size: 20px;
    font-weight: 600;
    color: #1E40AF;
    margin-bottom: 10px;
}

.feature-description {
    font-size: 14px;
    color: #555;
    line-height: 1.6;
}

@media (min-width: 576px) {
    .features-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (min-width: 992px) {
    .features-grid {
        grid-template-columns: repeat(4, 1fr);
    }

    .section-title {
        font-size: 36px;
    }
}

/* ===================================
   7. WHAT IS SECTION
   =================================== */
.what-is-section {
    padding: 60px 0;
    background: linear-gradient(135deg, #E0F2FE 0%, #ffffff 100%);
}

.content-grid {
    display: flex;
    flex-direction: column;
    gap: 40px;
    align-items: center;
}

.content-text {
    width: 100%;
}

.content-paragraph {
    font-size: 16px;
    line-height: 1.8;
    color: #555;
    margin-bottom: 20px;
}

.content-image {
    width: 100%;
    max-width: 500px;
}

.content-image img {
    width: 100%;
    border-radius: 15px;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
}

@media (min-width: 768px) {
    .content-grid {
        flex-direction: row;
        gap: 60px;
    }

    .content-text,
    .content-image {
        flex: 1;
    }
}

/* ===================================
   8. HOW IT WORKS SECTION
   =================================== */
.how-it-works-section {
    padding: 60px 0;
    background: #ffffff;
}

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

.accordion-item {
    margin-bottom: 20px;
    border: 2px solid #E0F2FE;
    border-radius: 10px;
    overflow: hidden;
    transition: all 0.3s ease;
}

.accordion-item:hover {
    border-color: #3B82F6;
}

.accordion-header {
    width: 100%;
    padding: 20px;
    background: #F0F9FF;
    display: flex;
    justify-content: space-between;
    align-items: center;
    font-size: 18px;
    font-weight: 600;
    color: #1E40AF;
    cursor: pointer;
    transition: all 0.3s ease;
    min-height: 48px;
}

.accordion-header:hover {
    background: #DBEAFE;
}

.accordion-icon {
    font-size: 24px;
    font-weight: 300;
    transition: transform 0.3s ease;
}

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

.accordion-content {
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.3s ease;
}

.accordion-item.active .accordion-content {
    max-height: 500px;
}

.accordion-content p {
    padding: 20px;
    font-size: 16px;
    line-height: 1.8;
    color: #555;
}

/* ===================================
   9. REVIEWS SECTION
   =================================== */
.reviews-section {
    padding: 60px 0;
    background: linear-gradient(135deg, #E0F2FE 0%, #ffffff 100%);
}

.reviews-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: 30px;
}

.review-card {
    background: #ffffff;
    padding: 30px;
    border-radius: 15px;
    box-shadow: 0 5px 20px rgba(0, 0, 0, 0.1);
    transition: all 0.3s ease;
}

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

.review-header {
    display: flex;
    align-items: center;
    margin-bottom: 15px;
}

.review-avatar {
    width: 60px;
    height: 60px;
    border-radius: 50%;
    object-fit: cover;
    margin-right: 15px;
}

.review-info {
    flex: 1;
}

.review-name {
    font-size: 18px;
    font-weight: 600;
    color: #1E40AF;
    margin-bottom: 5px;
}

.review-location {
    font-size: 14px;
    color: #777;
    margin-bottom: 5px;
}

.review-stars {
    color: #FFC107;
    font-size: 16px;
}

.review-text {
    font-size: 15px;
    line-height: 1.8;
    color: #555;
}

.slide-in-review {
    opacity: 0;
    transform: translateX(-30px);
    transition: all 0.6s ease;
}

.slide-in-review.visible {
    opacity: 1;
    transform: translateX(0);
}

.slide-in-review:nth-child(2) {
    transition-delay: 0.2s;
}

.slide-in-review:nth-child(3) {
    transition-delay: 0.4s;
}

@media (min-width: 768px) {
    .reviews-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (min-width: 992px) {
    .reviews-grid {
        grid-template-columns: repeat(3, 1fr);
    }
}

/* ===================================
   10. PRICING SECTION
   =================================== */
.pricing-section {
    padding: 60px 0;
    background: #ffffff;
}

.section-subtitle {
    text-align: center;
    font-size: 18px;
    color: #555;
    margin-bottom: 30px;
}

.countdown-timer {
    max-width: 500px;
    margin: 0 auto 40px;
    background: linear-gradient(135deg, #EF4444 0%, #DC2626 100%);
    padding: 20px;
    border-radius: 15px;
    text-align: center;
    box-shadow: 0 5px 20px rgba(239, 68, 68, 0.3);
}

.timer-label {
    color: #ffffff;
    font-size: 16px;
    font-weight: 600;
    margin-bottom: 10px;
}

.timer-display {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 10px;
}

.timer-unit {
    text-align: center;
}

.timer-number {
    display: block;
    font-size: 36px;
    font-weight: 700;
    color: #ffffff;
    line-height: 1;
}

.timer-label-small {
    display: block;
    font-size: 12px;
    color: #FEE2E2;
    margin-top: 5px;
}

.timer-separator {
    font-size: 36px;
    font-weight: 700;
    color: #ffffff;
}

@media (min-width: 768px) {
    .timer-number {
        font-size: 48px;
    }

    .timer-separator {
        font-size: 48px;
    }
}

.pricing-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: 30px;
    margin-bottom: 40px;
}

.pricing-card {
    background: #F0F9FF;
    border: 3px solid #3B82F6;
    border-radius: 20px;
    padding: 30px 20px;
    text-align: center;
    transition: all 0.3s ease;
    position: relative;
}

.pricing-card:hover {
    transform: translateY(-10px);
    box-shadow: 0 15px 40px rgba(30, 64, 175, 0.2);
}

.pricing-popular {
    background: linear-gradient(135deg, #1E40AF 0%, #3B82F6 100%);
    border-color: #1E40AF;
}

.pricing-popular * {
    color: #ffffff !important;
}

.popular-badge {
    position: absolute;
    top: -15px;
    left: 50%;
    transform: translateX(-50%);
    background: #EF4444;
    color: #ffffff;
    padding: 8px 20px;
    border-radius: 20px;
    font-size: 14px;
    font-weight: 700;
    box-shadow: 0 4px 10px rgba(239, 68, 68, 0.4);
}

.pricing-label {
    font-size: 16px;
    font-weight: 700;
    color: #1E40AF;
    margin-bottom: 10px;
}

.pricing-supply {
    font-size: 24px;
    font-weight: 700;
    color: #1E40AF;
    margin-bottom: 5px;
}

.pricing-days {
    font-size: 14px;
    color: #555;
    margin-bottom: 20px;
}

.pricing-image {
    max-width: 200px;
    margin: 0 auto 20px;
}

.pricing-amount {
    font-size: 28px;
    font-weight: 700;
    color: #1E40AF;
    margin-bottom: 10px;
}

.price-per {
    display: block;
}

.pricing-total {
    margin-bottom: 15px;
}

.price-old {
    font-size: 20px;
    color: #999;
    text-decoration: line-through;
    margin-right: 10px;
}

.price-new {
    font-size: 32px;
    font-weight: 700;
    color: #EF4444;
}

.bonus-badges {
    display: flex;
    flex-direction: column;
    gap: 10px;
    margin-bottom: 20px;
}

.bonus-badge {
    background: #10B981;
    color: #ffffff;
    padding: 8px 15px;
    border-radius: 20px;
    font-size: 12px;
    font-weight: 600;
}

.pricing-cta {
    display: block;
    margin: 20px 0;
    min-height: 50px;
}

.atc-img {
    width: 100%;
    max-width: 250px;
    margin: 0 auto;
    transition: transform 0.3s ease;
}

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

.payment-logos {
    margin-top: 15px;
}

.payment-logos img {
    width: 100%;
    max-width: 250px;
    margin: 0 auto;
}

.rating-section {
    text-align: center;
    margin-top: 30px;
}

.rating-image {
    max-width: 300px;
    margin: 0 auto;
}

@media (min-width: 576px) {
    .pricing-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .pricing-card:nth-child(2) {
        grid-column: 1 / -1;
        max-width: 400px;
        margin: 0 auto;
    }
}

@media (min-width: 992px) {
    .pricing-grid {
        grid-template-columns: repeat(3, 1fr);
    }

    .pricing-card:nth-child(2) {
        grid-column: auto;
        max-width: none;
    }
}

/* ===================================
   11. INGREDIENTS SECTION
   =================================== */
.ingredients-section {
    padding: 60px 0;
    background: linear-gradient(135deg, #E0F2FE 0%, #ffffff 100%);
}

.ingredients-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: 25px;
}

.ingredient-card {
    background: #ffffff;
    padding: 25px;
    border-radius: 15px;
    border-left: 4px solid #3B82F6;
    box-shadow: 0 3px 15px rgba(0, 0, 0, 0.08);
    transition: all 0.3s ease;
}

.ingredient-card:hover {
    transform: translateX(5px);
    box-shadow: 0 5px 20px rgba(0, 0, 0, 0.12);
}

.ingredient-name {
    font-size: 20px;
    font-weight: 700;
    color: #1E40AF;
    margin-bottom: 15px;
}

.ingredient-description {
    font-size: 15px;
    line-height: 1.7;
    color: #555;
    margin-bottom: 10px;
}

.ingredient-benefits {
    font-size: 14px;
    color: #10B981;
    line-height: 1.6;
}

@media (min-width: 768px) {
    .ingredients-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 30px;
    }
}

/* ===================================
   12. SCIENTIFIC EVIDENCE SECTION
   =================================== */
.science-section {
    padding: 60px 0;
    background: #ffffff;
}

.science-content {
    max-width: 900px;
    margin: 0 auto;
}

.science-item {
    margin-bottom: 35px;
}

.science-subtitle {
    font-size: 22px;
    font-weight: 700;
    color: #1E40AF;
    margin-bottom: 15px;
}

.science-item p {
    font-size: 16px;
    line-height: 1.8;
    color: #555;
}

/* ===================================
   13. GUARANTEE SECTION
   =================================== */
.guarantee-section {
    padding: 60px 0;
    background: linear-gradient(135deg, #E0F2FE 0%, #ffffff 100%);
}

.guarantee-grid {
    display: flex;
    flex-direction: column;
    gap: 40px;
    align-items: center;
}

.guarantee-image {
    width: 100%;
    max-width: 400px;
}

.guarantee-image img {
    width: 100%;
    border-radius: 15px;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
}

.guarantee-content {
    width: 100%;
}

.guarantee-point {
    margin-bottom: 25px;
}

.guarantee-subtitle {
    font-size: 20px;
    font-weight: 700;
    color: #1E40AF;
    margin-bottom: 10px;
}

.guarantee-point p {
    font-size: 16px;
    line-height: 1.8;
    color: #555;
}

@media (min-width: 768px) {
    .guarantee-grid {
        flex-direction: row;
        gap: 60px;
    }

    .guarantee-image,
    .guarantee-content {
        flex: 1;
    }
}

/* ===================================
   14. BENEFITS SECTION
   =================================== */
.benefits-section {
    padding: 60px 0;
    background: #ffffff;
}

.benefits-list {
    max-width: 800px;
    margin: 0 auto;
}

.benefit-item {
    display: flex;
    gap: 20px;
    margin-bottom: 30px;
    padding: 20px;
    background: #F0F9FF;
    border-radius: 15px;
    transition: all 0.3s ease;
}

.benefit-item:hover {
    transform: translateX(5px);
    box-shadow: 0 5px 20px rgba(0, 0, 0, 0.1);
}

.benefit-icon {
    flex-shrink: 0;
    width: 40px;
    height: 40px;
    background: linear-gradient(135deg, #10B981 0%, #059669 100%);
    color: #ffffff;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 24px;
    font-weight: 700;
}

.benefit-content h3 {
    font-size: 18px;
    font-weight: 700;
    color: #1E40AF;
    margin-bottom: 5px;
}

.benefit-content p {
    font-size: 15px;
    line-height: 1.6;
    color: #555;
}

/* ===================================
   15. FAQ SECTION
   =================================== */
.faq-section {
    padding: 60px 0;
    background: linear-gradient(135deg, #E0F2FE 0%, #ffffff 100%);
}

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

.faq-item {
    margin-bottom: 20px;
    background: #ffffff;
    border-radius: 10px;
    overflow: hidden;
    box-shadow: 0 3px 15px rgba(0, 0, 0, 0.08);
}

.faq-question {
    width: 100%;
    padding: 20px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    font-size: 18px;
    font-weight: 600;
    color: #1E40AF;
    cursor: pointer;
    transition: all 0.3s ease;
    min-height: 48px;
}

.faq-question:hover {
    background: #F0F9FF;
}

.faq-icon {
    font-size: 24px;
    font-weight: 300;
    transition: transform 0.3s ease;
}

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

.faq-answer {
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.3s ease;
}

.faq-item.active .faq-answer {
    max-height: 500px;
}

.faq-answer p {
    padding: 20px;
    font-size: 16px;
    line-height: 1.8;
    color: #555;
}

/* ===================================
   16. FINAL CTA SECTION
   =================================== */
.final-cta-section {
    padding: 60px 0;
    background: linear-gradient(135deg, #1E40AF 0%, #3B82F6 100%);
}

.final-cta-content {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 40px;
    text-align: center;
}

.final-cta-image {
    max-width: 300px;
}

.animate-bounce-slow {
    animation: bounceSlow 2s ease-in-out infinite;
}

@keyframes bounceSlow {
    0%, 100% {
        transform: translateY(0);
    }
    50% {
        transform: translateY(-15px);
    }
}

.final-cta-title {
    font-size: 28px;
    font-weight: 700;
    color: #ffffff;
    margin-bottom: 20px;
}

.final-cta-pricing {
    margin-bottom: 30px;
}

.final-price-old {
    display: block;
    font-size: 20px;
    color: #FEE2E2;
    text-decoration: line-through;
    margin-bottom: 10px;
}

.final-price-new {
    display: block;
    font-size: 36px;
    font-weight: 700;
    color: #FDE047;
}

@media (min-width: 768px) {
    .final-cta-content {
        flex-direction: row;
        text-align: left;
    }

    .final-cta-image {
        flex: 1;
    }

    .final-cta-text {
        flex: 1;
    }

    .final-cta-title {
        font-size: 36px;
    }

    .final-price-new {
        font-size: 42px;
    }
}

/* ===================================
   17. FOOTER
   =================================== */
.footer {
    background: #1E293B;
    color: #ffffff;
    padding: 60px 0 30px;
}

.footer-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: 40px;
    margin-bottom: 40px;
}

.footer-title {
    font-size: 20px;
    font-weight: 700;
    margin-bottom: 15px;
    color: #3B82F6;
}

.footer-links {
    list-style: none;
}

.footer-links li {
    margin-bottom: 10px;
}

.footer-links a {
    color: #CBD5E1;
    font-size: 14px;
    transition: color 0.3s ease;
}

.footer-links a:hover {
    color: #3B82F6;
}

.footer-disclaimer {
    font-size: 13px;
    line-height: 1.6;
    color: #CBD5E1;
}

.social-icons {
    display: flex;
    gap: 15px;
}

.social-icons a {
    width: 40px;
    height: 40px;
    background: #334155;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: #ffffff;
    transition: all 0.3s ease;
}

.social-icons a:hover {
    background: #3B82F6;
    transform: translateY(-3px);
}

.footer-bottom {
    text-align: center;
    padding-top: 30px;
    border-top: 1px solid #334155;
    font-size: 14px;
    color: #CBD5E1;
}

@media (min-width: 768px) {
    .footer-grid {
        grid-template-columns: repeat(3, 1fr);
    }

    .footer-bottom {
        text-align: center;
    }
}

/* ===================================
   18. SCROLL TO TOP BUTTON
   =================================== */
.scroll-to-top {
    position: fixed;
    bottom: 30px;
    right: 30px;
    width: 56px;
    height: 56px;
    background: linear-gradient(135deg, #1E40AF 0%, #3B82F6 100%);
    color: #ffffff;
    border-radius: 50%;
    display: none;
    align-items: center;
    justify-content: center;
    box-shadow: 0 5px 20px rgba(30, 64, 175, 0.4);
    z-index: 999;
    transition: all 0.3s ease;
}

.scroll-to-top.visible {
    display: flex;
}

.scroll-to-top:hover {
    transform: translateY(-5px);
    box-shadow: 0 8px 25px rgba(30, 64, 175, 0.5);
}

/* ===================================
   19. PURCHASE NOTIFICATION
   =================================== */
.purchase-notification {
    position: fixed;
    bottom: -100px;
    left: 20px;
    right: 20px;
    max-width: 400px;
    background: #ffffff;
    padding: 15px 20px;
    border-radius: 10px;
    box-shadow: 0 5px 20px rgba(0, 0, 0, 0.2);
    z-index: 999;
    transition: bottom 0.5s ease;
}

.purchase-notification.show {
    bottom: 20px;
}

.notification-content {
    display: flex;
    align-items: center;
    gap: 15px;
}

.notification-text {
    font-size: 14px;
    color: #333;
}

@media (min-width: 768px) {
    .purchase-notification {
        left: 20px;
        right: auto;
    }
}

/* ===================================
   20. UTILITY CLASSES
   =================================== */
.text-center {
    text-align: center;
}

.mb-20 {
    margin-bottom: 20px;
}

.mb-40 {
    margin-bottom: 40px;
}

.mt-20 {
    margin-top: 20px;
}

.mt-40 {
    margin-top: 40px;
}

/* ===================================
   21. RESPONSIVE MEDIA QUERIES
   =================================== */
@media (max-width: 320px) {
    .hero-title {
        font-size: 24px;
    }

    .section-title {
        font-size: 26px;
    }

    .timer-number {
        font-size: 28px;
    }
}

@media (prefers-reduced-motion: reduce) {
    *,
    *::before,
    *::after {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
        scroll-behavior: auto !important;
    }
}

/* ===================================
   22. PRINT STYLES
   =================================== */
@media print {
    .header,
    .nav-toggle,
    .scroll-to-top,
    .purchase-notification,
    .countdown-timer {
        display: none;
    }

    body {
        font-size: 12pt;
    }

    .container {
        max-width: 100%;
    }
}