:root {
    --primary: #F59E0B;
    --primary-dark: #D97706;
    --accent: #F43F5E;
    --gradient: linear-gradient(135deg, #F59E0B 0%, #F43F5E 100%);
    --bg-light: #FFFBEB;
    --text-dark: #0F172A;
    --text-muted: #64748B;
    --white: #FFFFFF;
    --shadow-sm: 0 4px 6px -1px rgb(0 0 0 / 0.1);
    --shadow-md: 0 10px 15px -3px rgb(0 0 0 / 0.1);
    --container-width: 1200px;
}

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

body {
    font-family: 'Inter', sans-serif;
    color: var(--text-dark);
    line-height: 1.6;
    overflow-x: hidden;
    background-color: var(--white);
}

h1,
h2,
h3,
.logo {
    font-family: 'Outfit', sans-serif;
    font-weight: 700;
}

.container {
    max-width: var(--container-width);
    margin: 0 auto;
    padding: 0 1.25rem;
}

@media (min-width: 768px) {
    .container {
        padding: 0 2rem;
    }
}

/* Scroll Progress Bar */
#progress-bar {
    position: fixed;
    top: 0;
    left: 0;
    height: 4px;
    background: var(--gradient);
    z-index: 1000;
    width: 0%;
    transition: width 0.1s ease;
}

/* Logo Styles (Used in Footer) */
.logo {
    font-size: 1.75rem;
    color: var(--text-dark);
    letter-spacing: -0.5px;
}

.logo-accent {
    color: var(--primary);
}

.logo {
    font-size: 1.75rem;
    color: var(--text-dark);
    letter-spacing: -0.5px;
}

.logo-accent {
    color: var(--primary);
}

@media (max-width: 480px) {
    .logo {
        font-size: 1.5rem;
    }
}

/* Hero Section */
.hero {
    padding: clamp(4rem, 10vw, 8rem) 0 6rem;
    position: relative;
    overflow: hidden;
    background: radial-gradient(circle at top right, rgba(0, 209, 255, 0.05) 0%, rgba(255, 255, 255, 1) 50%);
}

.hero .container {
    display: grid;
    grid-template-columns: 1.2fr 1fr;
    align-items: center;
    gap: 4rem;
    position: relative;
    z-index: 2;
}

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

@media (max-width: 992px) {
    .hero .container {
        grid-template-columns: 1fr;
        text-align: center;
        gap: 3rem;
    }

    .hero-content {
        text-align: left;
        max-width: 100%;
    }
}

.badge {
    background: rgba(245, 158, 11, 0.1);
    color: var(--primary);
    padding: 0.5rem 1rem;
    border-radius: 50px;
    font-weight: 600;
    font-size: 0.9rem;
    display: inline-block;
    margin-bottom: 1.5rem;
    border: 1px solid rgba(245, 158, 11, 0.2);
}

h1 {
    font-size: clamp(2.25rem, 8vw, 3.5rem);
    line-height: 1.2;
    margin-bottom: 1.5rem;
    letter-spacing: -0.01em;
}

.gradient-text {
    background: var(--gradient);
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
}

p {
    font-size: 1.15rem;
    color: var(--text-muted);
    margin-bottom: 2.5rem;
    max-width: 580px;
    line-height: 1.6;
    margin-left: 0;
}

.hero-btns {
    display: flex;
    align-items: center;
    gap: 1.5rem;
    margin-top: 2rem;
    margin-bottom: 4rem;
}

.play-store-badge img {
    height: 60px;
    width: auto;
    transition: transform 0.3s ease;
}

.play-store-badge:hover img {
    transform: scale(1.05);
}

@media (max-width: 600px) {
    .hero-btns {
        flex-direction: column;
        align-items: center;
        max-width: 400px;
        margin-left: auto;
        margin-right: auto;
        gap: 0.75rem;
    }
}

@media (max-width: 992px) {
    .hero-btns {
        justify-content: center;
    }
}

@media (max-width: 600px) {
    .hero-btns {
        flex-direction: column;
        align-items: center;
        max-width: 400px;
        margin-left: auto;
        margin-right: auto;
    }

    .hero-btns .btn {
        width: 100%;
        justify-content: center;
    }
}

.hero-visual {
    position: relative;
}

.hero-img {
    width: 100%;
    max-width: 480px;
    border-radius: 20px;
    /* box-shadow: 0 40px 80px -20px rgba(0, 102, 255, 0.2); */
    /* Subtle blend for white background PNG-style */
    mix-blend-mode: multiply;
    position: relative;
    z-index: 2;
    transition: transform 0.5s ease;
}

.hero-img:hover {
    transform: translateY(-10px) scale(1.02);
}

.visual-decor-circle {
    position: absolute;
    width: 120%;
    height: 120%;
    background: radial-gradient(circle, rgba(245, 158, 11, 0.15) 0%, transparent 70%);
    top: -10%;
    left: -10%;
    z-index: 1;
    border-radius: 50%;
    animation: pulseGlow 10s infinite alternate;
}

@keyframes pulseGlow {
    0% {
        transform: scale(1);
        opacity: 0.5;
    }

    100% {
        transform: scale(1.1);
        opacity: 0.8;
    }
}

/* Floating Subject Icons */
.floating-icon {
    position: absolute;
    width: 50px;
    height: 50px;
    background: var(--white);
    border-radius: 16px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.4rem;
    box-shadow: 0 10px 25px -5px rgba(0, 0, 0, 0.1);
    z-index: 3;
}

.math {
    color: #3B82F6;
    border: 1px solid rgba(59, 130, 246, 0.2);
}

.chemistry {
    color: #EC4899;
    border: 1px solid rgba(236, 72, 153, 0.2);
}

.physics {
    color: #6366F1;
    border: 1px solid rgba(99, 102, 241, 0.2);
}

.biology {
    color: #10B981;
    border: 1px solid rgba(16, 185, 129, 0.2);
}

/* Orbit Animations */
@keyframes orbit-1 {
    0% {
        transform: translate(0, 0) rotate(0deg);
    }

    33% {
        transform: translate(15px, -25px) rotate(5deg);
    }

    66% {
        transform: translate(-10px, -15px) rotate(-5deg);
    }

    100% {
        transform: translate(0, 0) rotate(0deg);
    }
}

@keyframes orbit-2 {
    0% {
        transform: translate(0, 0) rotate(0deg);
    }

    50% {
        transform: translate(-20px, 20px) rotate(-10deg);
    }

    100% {
        transform: translate(0, 0) rotate(0deg);
    }
}

.icon-1 {
    top: 20%;
    left: 5%;
    animation: orbit-1 7s infinite ease-in-out;
}

.icon-2 {
    top: 10%;
    right: 15%;
    animation: orbit-2 8s infinite ease-in-out;
}

.icon-3 {
    bottom: 30%;
    right: 5%;
    animation: orbit-1 9s infinite ease-in-out;
}

.icon-4 {
    bottom: 15%;
    left: 15%;
    animation: orbit-2 6s infinite ease-in-out;
}

.icon-5 {
    top: 40%;
    right: 5%;
    animation: orbit-1 10s infinite ease-in-out linear;
}

.icon-6 {
    bottom: 10%;
    right: 25%;
    animation: orbit-2 11s infinite ease-in-out;
}

.icon-7 {
    top: 50%;
    left: 0%;
    animation: orbit-1 6s infinite ease-in-out;
}

.icon-8 {
    top: 5%;
    left: 20%;
    animation: orbit-2 7s infinite ease-in-out;
}

.icon-9 {
    top: 55%;
    right: 15%;
    animation: orbit-2 9s infinite ease-in-out;
}

/* Floating Formula Text */
.floating-formula {
    position: absolute;
    font-family: 'Outfit';
    font-weight: 800;
    font-size: 0.8rem;
    color: rgba(245, 158, 11, 0.35);
    z-index: 2;
    pointer-events: none;
    user-select: none;
}

.formula-1 {
    top: 45%;
    left: -5%;
    transform: rotate(-15deg);
    animation: float 5s infinite;
}

.formula-2 {
    top: 25%;
    right: 0%;
    transform: rotate(10deg);
    animation: float 6s infinite;
}

.formula-3 {
    bottom: 20%;
    left: 5%;
    transform: rotate(5deg);
    animation: float 7s infinite;
}

.formula-4 {
    bottom: 5%;
    right: 10%;
    transform: rotate(-10deg);
    animation: float 8s infinite;
    color: rgba(16, 185, 129, 0.35);
}

.formula-5 {
    top: 15%;
    left: 25%;
    transform: rotate(0deg);
    animation: float 9s infinite;
    color: rgba(16, 185, 129, 0.35);
}

@media (max-width: 992px) {
    .floating-icon {
        width: 40px;
        height: 40px;
        font-size: 1.1rem;
    }

    .floating-formula {
        font-size: 0.65rem;
        opacity: 0.25;
    }
}

.btn {
    padding: 1rem 2rem;
    border-radius: 12px;
    font-weight: 700;
    font-size: 1.1rem;
    text-decoration: none;
    transition: all 0.3s ease;
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
}

.btn-primary {
    background: var(--gradient);
    color: var(--white);
    box-shadow: 0 20px 40px -10px rgba(245, 158, 11, 0.3);
}

.btn-primary:hover {
    transform: translateY(-3px);
    box-shadow: 0 25px 50px -12px rgba(245, 158, 11, 0.4);
}

.btn-outline {
    background: transparent;
    color: var(--text-dark);
    border: 2px solid #E2E8F0;
}

.btn-outline:hover {
    border-color: var(--primary);
    color: var(--primary);
}

.hero-stats {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 1.5rem;
    max-width: 600px;
    margin: 0 auto;
}

@media (max-width: 480px) {
    .hero-stats {
        grid-template-columns: repeat(3, 1fr);
        gap: 0.5rem;
    }

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

    .stat-num {
        font-size: 1.25rem;
    }

    .stat-label {
        font-size: 0.65rem;
    }

    .divider {
        display: none;
    }
}

.stat-item {
    display: flex;
    flex-direction: column;
}

.stat-num {
    font-size: clamp(1.5rem, 5vw, 1.75rem);
    font-weight: 800;
    color: var(--text-dark);
    font-family: 'Outfit';
}

.stat-label {
    font-size: 0.75rem;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 1px;
}

.divider {
    height: 40px;
    width: 1px;
    background: #E2E8F0;
    justify-self: center;
}

.hero-bg-shapes .shape {
    position: absolute;
    border-radius: 50%;
    filter: blur(80px);
    z-index: 1;
}

.shape-1 {
    width: 400px;
    height: 400px;
    background: rgba(245, 158, 11, 0.1);
    top: -100px;
    right: -100px;
}

.shape-2 {
    width: 300px;
    height: 300px;
    background: rgba(244, 63, 94, 0.1);
    bottom: -50px;
    left: -50px;
}

/* Section General Styles */
.section {
    padding: clamp(4rem, 10vw, 8rem) 0;
}

.bg-light {
    background-color: var(--bg-light);
}

.section-header {
    text-align: center;
    margin-bottom: clamp(2rem, 8vw, 4rem);
    max-width: 700px;
    margin-left: auto;
    margin-right: auto;
}

.section-badge {
    text-transform: uppercase;
    font-weight: 700;
    font-size: 0.75rem;
    color: var(--primary);
    letter-spacing: 2px;
    margin-bottom: 0.75rem;
    display: block;
}

.section-header h2 {
    font-size: clamp(1.75rem, 6vw, 2.75rem);
    margin-bottom: 1rem;
    line-height: 1.2;
}

/* Features Grid */
.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 2rem;
}

@media (max-width: 992px) {
    .features-grid {
        grid-template-columns: 1fr;
    }
}

.feature-card {
    padding: 3rem 2rem;
    background: var(--white);
    border-radius: 24px;
    box-shadow: var(--shadow-sm);
    transition: all 0.3s ease;
    border: 1px solid rgba(0, 0, 0, 0.05);
}

.feature-card:hover {
    transform: translateY(-10px);
    box-shadow: var(--shadow-md);
    border-color: rgba(245, 158, 11, 0.2);
}

.feature-icon {
    width: 64px;
    height: 64px;
    background: rgba(245, 158, 11, 0.1);
    color: var(--primary);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 2rem;
    border-radius: 16px;
    margin-bottom: 1.5rem;
}

.feature-card h3 {
    margin-bottom: 1rem;
    font-size: 1.4rem;
}

.feature-card p {
    font-size: 1rem;
    margin-bottom: 0;
}

/* Flex Layout (Who it's for) */
.flex-layout {
    display: flex;
    align-items: center;
    gap: 4rem;
}

@media (max-width: 768px) {
    .flex-layout {
        flex-direction: column-reverse;
        text-align: center;
        gap: 2rem;
    }

    .check-list {
        display: inline-block;
        text-align: left;
        margin: 2rem auto 0;
    }
}

.flex-content,
.flex-visual {
    flex: 1;
}

.check-list {
    list-style: none;
    margin-top: 2rem;
}

.check-list li {
    display: flex;
    align-items: center;
    gap: 1rem;
    margin-bottom: 1rem;
    font-weight: 600;
    text-align: left;
}

.check-list i {
    color: var(--primary);
    font-size: 1.25rem;
}

.target-audience-visual {
    width: 100%;
    position: relative;
    border-radius: 30px;
    overflow: hidden;
    box-shadow: 0 30px 60px -15px rgba(0, 102, 255, 0.2);
}

.target-img {
    width: 100%;
    height: auto;
    display: block;
    transition: transform 0.5s ease;
}

.target-audience-visual:hover .target-img {
    transform: scale(1.05);
}

.visual-decor {
    position: absolute;
    width: calc(100% - 30px);
    height: calc(100% - 30px);
    border: 2px dashed rgba(255, 255, 255, 0.5);
    border-radius: 20px;
    top: 15px;
    left: 15px;
    pointer-events: none;
    z-index: 2;
}

/* Scroll Animation Styles */
[data-aos] {
    opacity: 0;
    transform: translateY(30px);
    transition: all 0.8s cubic-bezier(0.2, 0.8, 0.2, 1);
}

[data-aos].reveal {
    opacity: 1;
    transform: translateY(0);
}

[data-aos-delay="100"] {
    transition-delay: 0.1s;
}

[data-aos-delay="200"] {
    transition-delay: 0.2s;
}

/* Curriculum Grid */
.curriculum-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: 2rem;
    max-width: 800px;
    margin: 0 auto;
}

.subject-card {
    background: var(--white);
    border-radius: 20px;
    overflow: hidden;
    box-shadow: var(--shadow-sm);
    border: 1px solid rgba(0, 0, 0, 0.05);
}

.subject-header {
    padding: clamp(1.2rem, 5vw, 2rem);
    color: var(--white);
    display: flex;
    align-items: center;
    gap: 1rem;
}

.subject-header.physics {
    background: #6366F1;
}

.subject-header.chemistry {
    background: #EC4899;
}

.subject-header.math {
    background: #3B82F6;
}

.subject-header i {
    font-size: clamp(1.5rem, 4vw, 2rem);
}

.subject-header h3 {
    font-size: clamp(1.2rem, 4vw, 1.5rem);
    margin: 0;
}

.subject-list {
    list-style: none;
    padding: clamp(1rem, 5vw, 2rem);
}

.subject-list li {
    padding: 0.6rem 0;
    border-bottom: 1px solid #F1F5F9;
    color: var(--text-muted);
    font-weight: 500;
    font-size: 0.95rem;
}

.subject-list li:last-child {
    border-bottom: none;
}

/* CTA Banner Section */
.cta-banner-section {
    padding-bottom: 4rem;
}

.cta-banner {
    background: var(--gradient);
    border-radius: 40px;
    padding: 5rem 2rem;
    text-align: center;
    color: var(--white);
    position: relative;
    overflow: hidden;
    box-shadow: 0 40px 80px -20px rgba(0, 102, 255, 0.5);
}

.banner-content {
    max-width: 700px;
    margin: 0 auto;
    position: relative;
    z-index: 2;
}

.highlight-tag {
    background: rgba(255, 255, 255, 0.2);
    display: inline-block;
    padding: 0.5rem 1.5rem;
    border-radius: 50px;
    font-weight: 800;
    font-size: 0.9rem;
    margin-bottom: 2rem;
    backdrop-filter: blur(5px);
    border: 1px solid rgba(255, 255, 255, 0.3);
}

.cta-banner h2 {
    font-size: 3rem;
    margin-bottom: 1.5rem;
}

.cta-banner p {
    color: rgba(255, 255, 255, 0.9);
    margin-bottom: 3rem;
    font-size: 1.25rem;
}

.white-btn {
    background: var(--white) !important;
    color: var(--primary) !important;
}

.timer-container {
    margin-bottom: 3rem;
}

.timer-container .small-text {
    font-size: 0.9rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 2px;
    margin-bottom: 1rem;
    color: rgba(255, 255, 255, 0.8);
}

.timer {
    display: flex;
    justify-content: center;
    gap: clamp(0.5rem, 3vw, 2.5rem);
}

.timer-segment {
    display: flex;
    flex-direction: column;
}

.time-val {
    font-size: 2.5rem;
    font-weight: 800;
    font-family: 'Outfit';
}

.time-unit {
    font-size: 0.8rem;
    text-transform: uppercase;
    opacity: 0.8;
}

/* Benefits Grid */
.benefits-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 2rem;
}

.benefit-item {
    text-align: center;
    padding: 2rem;
    background: var(--bg-light);
    border-radius: 24px;
    transition: all 0.3s ease;
}

.benefit-item:hover {
    background: var(--white);
    box-shadow: var(--shadow-md);
    transform: translateY(-5px);
}

.benefit-item i {
    font-size: 3rem;
    color: var(--primary);
    margin-bottom: 1.5rem;
    display: inline-block;
}

.benefit-item h3 {
    font-size: 1.25rem;
    margin-bottom: 1rem;
}

.benefit-item p {
    font-size: 0.95rem;
    margin-bottom: 0;
}

/* Testimonial Slider */
.testimonial-slider-container {
    position: relative;
    max-width: 800px;
    margin: 0 auto;
    overflow: hidden;
    padding: 1rem;
}

.testimonial-slider {
    display: flex;
    transition: transform 0.5s cubic-bezier(0.4, 0, 0.2, 1);
}

.testimonial-card {
    flex: 0 0 100%;
    background: var(--white);
    padding: clamp(1.5rem, 5vw, 3rem);
    border-radius: 30px;
    box-shadow: var(--shadow-sm);
    position: relative;
    margin: 0;
    /* Clear previous grid gaps */
    transition: all 0.3s ease;
}

.quote-icon {
    font-size: 2.5rem;
    color: rgba(0, 102, 255, 0.1);
    position: absolute;
    top: 2rem;
    right: 2rem;
}

.testimonial-card p {
    font-style: italic;
    font-size: 1.1rem;
    color: var(--text-dark);
    margin-bottom: 2rem;
    position: relative;
    z-index: 1;
}

.student-info {
    display: flex;
    align-items: center;
    gap: 1rem;
}

.student-img-placeholder {
    width: 50px;
    height: 50px;
    background: var(--primary);
    color: var(--white);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 800;
}

.student-info h4 {
    margin: 0;
    font-size: 1rem;
}

.student-info span {
    font-size: 0.85rem;
    color: var(--text-muted);
}

@media (max-width: 992px) {
    .benefits-grid {
        grid-template-columns: 1fr;
    }
}

/* Slider Controls */
.slider-controls {
    display: flex;
    justify-content: center;
    gap: 1.5rem;
    margin-top: 2rem;
}

.slider-btn {
    width: 50px;
    height: 50px;
    border-radius: 50%;
    border: 2px solid #E2E8F0;
    background: var(--white);
    color: var(--text-dark);
    font-size: 1.25rem;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all 0.3s ease;
}

.slider-btn:hover {
    background: var(--primary);
    color: var(--white);
    border-color: var(--primary);
    transform: translateY(-2px);
    box-shadow: 0 10px 15px -3px rgba(0, 102, 255, 0.2);
}

.slider-dots {
    display: flex;
    justify-content: center;
    gap: 0.75rem;
    margin-top: 1.5rem;
}

.dot {
    width: 10px;
    height: 10px;
    border-radius: 50%;
    background: #E2E8F0;
    cursor: pointer;
    transition: all 0.3s ease;
}

.dot.active {
    background: var(--primary);
    width: 25px;
    border-radius: 10px;
}

/* Final CTA Section */
.final-cta {
    background: var(--bg-light);
    padding-bottom: 6rem;
}

.cta-card {
    background: var(--gradient);
    padding: clamp(3rem, 10vw, 6rem) clamp(1.5rem, 5vw, 3rem);
    border-radius: clamp(24px, 5vw, 40px);
    text-align: center;
    color: var(--white);
    box-shadow: 0 40px 80px -20px rgba(0, 102, 255, 0.4);
    display: flex;
    flex-direction: column;
    align-items: center;
}

.cta-card .btn {
    display: flex;
    justify-content: center;
    width: fit-content;
    max-width: 100%;
}

.cta-store-links {
    margin-top: 1.5rem;
}

.cta-store-links img {
    transition: transform 0.3s ease;
}

.cta-store-links img:hover {
    transform: scale(1.05);
}

.cta-card h2 {
    font-size: clamp(1.75rem, 6vw, 3rem);
    margin-bottom: 1.5rem;
}

.cta-card p {
    color: rgba(255, 255, 255, 0.9);
    margin-bottom: 2.5rem;
    font-size: clamp(1rem, 4vw, 1.2rem);
}

.white-text {
    color: var(--white);
    text-decoration: underline;
}

.mt-2 {
    margin-top: 1.5rem;
}

/* Footer */
footer {
    background: var(--text-dark);
    color: var(--white);
    padding: 5rem 0 2rem;
}

.footer-grid {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr 1fr;
    gap: 4rem;
    margin-bottom: 4rem;
}

.footer-brand .logo {
    color: var(--white);
    margin-bottom: 1.5rem;
}

.footer-brand p {
    color: #94A3B8;
    max-width: 300px;
}

footer h4 {
    margin-bottom: 1.5rem;
    font-size: 1.2rem;
}

footer ul {
    list-style: none;
}

footer ul li {
    margin-bottom: 0.75rem;
}

footer ul li a {
    color: #94A3B8;
    text-decoration: none;
    transition: color 0.3s ease;
}

footer ul li a:hover {
    color: var(--accent);
}

.footer-contact li {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    color: #94A3B8;
}

.footer-contact i {
    color: var(--accent);
}

.social-icons {
    display: flex;
    gap: 1rem;
}

.social-icons a {
    width: 40px;
    height: 40px;
    background: rgba(255, 255, 255, 0.1);
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 50%;
    color: var(--white);
    font-size: 1.25rem;
    transition: all 0.3s ease;
}

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

.footer-bottom {
    padding-top: 2rem;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    text-align: center;
    color: #64748B;
    font-size: 0.9rem;
}

/* Mobile Responsive Footer */
@media (max-width: 992px) {
    .footer-grid {
        grid-template-columns: 1fr 1fr;
        gap: 3rem;
    }
}

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

    .cta-card {
        padding: 4rem 1.5rem;
    }

    .cta-card h2 {
        font-size: 2rem;
    }
}

/* Back to Top */
#back-to-top {
    position: fixed;
    bottom: 2rem;
    right: 2rem;
    width: 50px;
    height: 50px;
    background: var(--gradient);
    color: var(--white);
    border: none;
    border-radius: 50%;
    cursor: pointer;
    display: none;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    box-shadow: var(--shadow-md);
    z-index: 99;
    transition: all 0.3s ease;
}

#back-to-top:hover {
    transform: translateY(-5px);
    box-shadow: 0 15px 30px -10px rgba(0, 102, 255, 0.4);
}

@media (max-width: 768px) {
    #back-to-top {
        bottom: 1.5rem;
        right: 1.5rem;
        width: 45px;
        height: 45px;
    }
}

/* Sticky CTA Button */
.sticky-cta {
    position: fixed;
    bottom: 2rem;
    left: 50%;
    transform: translateX(-50%) translateY(100px);
    background: var(--gradient);
    color: var(--white);
    padding: 1rem 2.5rem;
    border-radius: 50px;
    font-weight: 700;
    font-size: 1.1rem;
    text-decoration: none;
    box-shadow: 0 20px 40px -10px rgba(0, 102, 255, 0.5);
    z-index: 98;
    display: flex;
    align-items: center;
    gap: 0.75rem;
    transition: all 0.5s cubic-bezier(0.175, 0.885, 0.32, 1.275);
    opacity: 0;
    pointer-events: none;
    white-space: nowrap;
}

.sticky-cta.visible {
    transform: translateX(-50%) translateY(0);
    opacity: 1;
    pointer-events: auto;
}

.sticky-cta:hover {
    transform: translateX(-50%) translateY(-5px);
    box-shadow: 0 25px 50px -12px rgba(0, 102, 255, 0.6);
}

.sticky-cta i {
    font-size: 1.25rem;
    animation: pulse 2s infinite;
}

@keyframes pulse {
    0% {
        transform: scale(1);
    }

    50% {
        transform: scale(1.2);
    }

    100% {
        transform: scale(1);
    }
}

@media (max-width: 600px) {
    .sticky-cta {
        bottom: 1.5rem;
        padding: 0.85rem 2rem;
        font-size: 1rem;
        width: 90%;
        justify-content: center;
    }
}