/* =============== BASE & VARIABLES =============== */
:root {
    --primary-color: #ff6b6b;
    /* Coral red */
    --secondary-color: #4ecdc4;
    /* Teal */
    --accent-color: #ffd166;
    /* Yellow */
    --neutral-dark: #2d3142;
    --neutral-medium: #4f5d75;
    --neutral-light: #f8f9fa;
    --text-color: #2d3142;
    --text-light: #000000;
    --bg-color: #f8f9fa;
    --bg-secondary: #ffffff;
    --card-bg: rgba(255, 255, 255, 0.95);
    --border-color: rgba(255, 107, 107, 0.2);
    --shadow-color: rgba(45, 49, 66, 0.1);
    --gradient-start: #787272;
    --gradient-end: #4ecdc4;
    --glow-color: rgba(255, 107, 107, 0.4);
}

[data-theme="dark"] {
    --primary-color: #ff6b6b;
    --secondary-color: #4ecdc4;
    --accent-color: #ffd166;
    --text-color: #f8f9fa;
    --text-light: #ffffff;
    --bg-color: #181818;
    --bg-secondary: #181818;
    --card-bg: #181818;
    --border-color: rgba(255, 107, 107, 0.3);
    --gradient-start: #787272;
    --gradient-end: #4ecdc4;
    --glow-color: rgba(255, 107, 107, 0.6);
}

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

html {
    scroll-behavior: smooth;
}

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

/* =============== TYPOGRAPHY =============== */
h1,
h2,
h3,
h4,
h5,
h6 {
    font-weight: 700;
    margin-bottom: 1rem;
    line-height: 1.2;
}

h1 {
    font-size: 3.5rem;
    background: linear-gradient(135deg, var(--gradient-start), var(--gradient-end));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

h2.section-title {
    font-size: 2.5rem;
    text-align: center;
    margin-bottom: 3rem;
    position: relative;
}

h2.section-title::after {
    content: '';
    position: absolute;
    bottom: -15px;
    left: 50%;
    transform: translateX(-50%);
    width: 80px;
    height: 4px;
    background: linear-gradient(90deg, var(--gradient-start), var(--gradient-end));
    border-radius: 2px;
}

p {
    margin-bottom: 1rem;
    color: var(--text-light);
}

/* =============== LAYOUT & CONTAINERS =============== */
section {
    padding: 5rem 2rem;
    max-width: 1200px;
    margin: 0 auto;
}

/* =============== HEADER & NAVIGATION =============== */
header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1rem 2rem;
    background-color: var(--bg-secondary);
    box-shadow: 0 4px 20px var(--shadow-color);
    position: sticky;
    top: 0;
    z-index: 1000;
    transition: all 0.4s cubic-bezier(0.25, 0.46, 0.45, 0.94);
}

/* Hamburger Menu - Left side */
.hamburger {
    display: none;
    flex-direction: column;
    justify-content: space-between;
    width: 30px;
    height: 21px;
    cursor: pointer;
    z-index: 1001;
    position: relative;
    order: 1;
    /* Left position */
}

.hamburger span {
    display: block;
    height: 3px;
    width: 100%;
    background-color: var(--text-color);
    border-radius: 3px;
    transition: all 0.3s ease;
}

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

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

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

/* Navigation links - Center */
.nav-links {
    display: flex;
    list-style: none;
    gap: 0.8rem;
    transition: all 0.4s ease;

    margin: 0;
    padding: 0;
}

.nav-links a {
    text-decoration: none;
    color: var(--text-color);
    font-weight: 500;
    transition: all 0.3s cubic-bezier(0.25, 0.46, 0.45, 0.94);
    position: relative;
    padding: 0.6rem 1.2rem;
    border-radius: 12px;
    z-index: 1;
    order: 1;
    /* Center position */
}

.nav-links a:hover {
    color: white;
}

.nav-links a::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    border-radius: 12px;
    background: linear-gradient(135deg, var(--gradient-start), var(--gradient-end));
    opacity: 0;
    transition: all 0.4s cubic-bezier(0.25, 0.46, 0.45, 0.94);
    z-index: -1;
    transform: scale(0.9);
}

.nav-links a:hover::before {
    opacity: 0.5;
    transform: scale(1);
}

.nav-links a.active {
    color: white;
    font-weight: 600;
}

.nav-links a.active::before {
    opacity: 0.8;
    transform: scale(1);
    box-shadow: 0 4px 20px rgba(108, 92, 231, 0.3);
}

/* Logo - Right side */
.logo {
    font-family: 'Orbitron', sans-serif;
    font-size: 1.8rem;
    font-weight: 700;
    color: var(--primary-color);
    transition: all 0.3s ease;
    z-index: 1001;
    margin-left: 0;
    /* Pushes logo to the right */

}

.logo span {
    color: var(--secondary-color);
}

/* Navigation actions (Order Now button) */
.nav-actions {
    display: flex;
    align-items: center;
    order: 4;
    /* Far right position */
    margin-left: 1.5rem;
}

/* Mobile Navigation */
@media (max-width: 968px) {
    header {
        display: flex;
        align-items: center;
        justify-content: space-between;
    }

    .hamburger {
        display: flex;
        order: 1;
        margin-right: auto;
    }

    .logo {
        order: 2;
        flex: 1;
        text-align: center;
        margin: 0 auto;
        font-size: 2.2rem;
    }


    .nav-links {
        position: fixed;
        top: 0;
        right: -100%;
        width: 70%;
        height: 100vh;
        background-color: var(--bg-secondary);
        flex-direction: column;
        align-items: center;
        justify-content: center;
        gap: 2rem;
        transition: right 0.4s ease;
        box-shadow: -5px 0 25px var(--shadow-color);
        z-index: 999;
    }

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

    .nav-actions {
        order: 3;
    }

    .nav-actions .btn {
        display: none;
    }

    .nav-links.active~.nav-actions {
        position: fixed;
        bottom: 20px;
        left: 0;
        right: 0;
        display: flex;
        justify-content: center;
        z-index: 1000;
    }

    .nav-links.active~.nav-actions .btn {
        display: block;
        padding: 1rem 2rem;
        font-size: 1.1rem;
    }
}

@media (max-width: 480px) {
    header {
        padding: 0.8rem 1rem;
    }

    .logo {
        font-size: 2.5rem;
    }

    .nav-links {
        width: 85%;
    }

    .nav-links a {
        padding: 0.8rem 1.5rem;
        font-size: 1.1rem;
    }
}

.theme-toggle {
    position: fixed;
    bottom: 20px;
    right: 20px;
    background: linear-gradient(135deg, #00c9a7, #ff4b5c);
    color: #fff;
    border: none;
    font-size: 1.3rem;
    cursor: pointer;
    width: 50px;
    height: 50px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: 0 0 15px rgba(0, 201, 167, 0.6);
    transition: all 0.3s ease;
    z-index: 2000;
}

.theme-toggle:hover {
    transform: rotate(25deg) scale(1.1);
    box-shadow: 0 0 20px rgba(255, 75, 92, 0.8);
}

/* =============== BUTTONS =============== */
.btn {
    display: inline-block;
    padding: 0.8rem 1.8rem;
    border-radius: 50px;
    text-decoration: none;
    font-weight: 600;
    transition: var(--transition);
    border: none;
    cursor: pointer;
    text-align: center;
    position: relative;
    overflow: hidden;
}

.btn::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.2), transparent);
    transition: 0.5s;
}

.btn:hover::before {
    left: 100%;
}

.primary-btn {
    background: linear-gradient(135deg, var(--gradient-start), var(--gradient-end));
    color: white;
    box-shadow: 0 4px 15px rgba(108, 92, 231, 0.3);
}

.primary-btn:hover {
    transform: translateY(-3px);
    box-shadow: 0 8px 25px rgba(108, 92, 231, 0.4);
}

.secondary-btn {
    background: transparent;
    color: var(--primary-color);
    border: 2px solid var(--primary-color);
}

.secondary-btn:hover {
    background: var(--primary-color);
    color: white;
}

.small-btn {
    padding: 0.5rem 1.2rem;
    font-size: 0.9rem;
    color: #ff6b6b;
}

.cta-button {
    width: 100%;
    margin-top: 1.5rem;
}

.order-btn {
    width: 100%;
    padding: 1rem;
    font-size: 1.1rem;
    margin-top: 1.5rem;
}

/* =============== HERO SECTION =============== */
.hero {
    padding: 2rem 1rem 4rem;
    background: linear-gradient(135deg, var(--bg-color) 0%, var(--bg-secondary) 100%);
    position: relative;
    overflow: hidden;
}

.hero::before {
    content: '';
    position: absolute;
    top: -50%;
    right: -50%;
    width: 100%;
    height: 200%;
    background: radial-gradient(circle, rgba(90, 103, 216, 0.1) 0%, transparent 70%);
    z-index: 0;
}

.hero-container {
    max-width: 1200px;
    margin: 0 auto;
    position: relative;
    z-index: 2;
}

.hero-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 3rem;
    align-items: center;
    margin-bottom: 4rem;
}

.hero-text h1 {
    font-size: 3.5rem;
    margin-bottom: 1rem;
    animation: fadeInUp 1s ease;
    line-height: 1.1;
}

.hero-text h2 {
    font-size: 1.5rem;
    font-weight: 500;
    color: var(--text-light);
    margin-bottom: 1.5rem;
    animation: fadeInUp 1s ease 0.2s forwards;
    opacity: 0;
}

.hero-desc {
    color: #589e9e;
    font-weight: bold;

}

/* Enhanced Hero Description Container */
.hero-description-container {
    background: linear-gradient(135deg, rgba(255, 255, 255, 0.1) 0%, rgba(255, 255, 255, 0.05) 100%);
    backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: 16px;
    padding: 2rem;
    margin-bottom: 2rem;
    position: relative;
    overflow: hidden;
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.1);
}

.hero-description-container::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 2px;
    background: linear-gradient(90deg, transparent, var(--primary-color), transparent);
}

.hero-description {
    font-size: 1.1rem;
    margin-bottom: 0;
    color: var(--text-light);
    animation: fadeInUp 1s ease 0.4s forwards;
    opacity: 0;
    line-height: 1.7;
    position: relative;
    z-index: 1;
}

/* Decorative elements */
.hero-description-container::after {
    content: '';
    position: absolute;
    top: -50%;
    right: -50%;
    width: 100%;
    height: 200%;
    background: radial-gradient(circle, rgba(255, 107, 107, 0.05) 0%, transparent 70%);
    z-index: 0;
}

/* For dark theme enhancement */
[data-theme="dark"] .hero-description-container {
    background: linear-gradient(135deg, rgba(45, 49, 66, 0.3) 0%, rgba(45, 49, 66, 0.2) 100%);
    border: 1px solid rgba(255, 255, 255, 0.05);
}

.hero-cta {
    display: flex;
    gap: 1rem;
    margin-bottom: 2.5rem;
    animation: fadeInUp 1s ease 0.6s forwards;
    opacity: 0;
}

.hero-stats {
    display: flex;
    gap: 2rem;
    animation: fadeInUp 1s ease 0.8s forwards;
    opacity: 0;
}

.stat {
    display: flex;
    flex-direction: column;
    align-items: flex-start;
}

.stat-number {
    font-size: 1.8rem;
    font-weight: 700;
    color: var(--primary-color);
    line-height: 1;
}

.stat-label {
    font-size: 0.9rem;
    color: var(--text-light);
}

.hero-visual {
    position: relative;
    animation: fadeIn 1s ease 0.5s forwards;
    opacity: 0;
}

.product-showcase {
    position: relative;
    background: var(--card-bg);
    border-radius: 20px;
    padding: 2rem;
    box-shadow: 0 20px 40px var(--shadow-color);
    border: 1px solid var(--border-color);
}

.product-image {
    position: relative;
    text-align: center;
    margin-bottom: 2rem;
}

.main-product {
    width: 100%;
    max-width: 350px;
    height: auto;
    border-radius: 10px;
    transform: rotate(-5deg);
    transition: var(--transition);
    box-shadow: 0 15px 30px rgba(0, 0, 0, 0.15);
}

.main-product:hover {
    transform: rotate(0deg) scale(1.05);
}

.product-badge {
    position: absolute;
    top: 20px;
    right: 20px;
    background: var(--accent-color);
    color: white;
    padding: 0.5rem 1rem;
    border-radius: 50px;
    font-weight: 700;
    font-size: 0.9rem;
}

.hero-video {
    border-radius: 12px;
    /* subtle frame */
    overflow: hidden;
    position: relative;
    box-shadow: 0 20px 20px rgba(0, 0, 0, 0.25);
    padding: 0;

    background: none;

}

.hero-video video {
    width: 120%;
    display: block;
    border-radius: inherit;
    transition: transform 0.3s ease;
}

.hero-video:hover video {
    transform: scale(1.02);
}


.hero-video:hover .play-overlay {
    opacity: 1;
    transform: translate(-50%, -50%) scale(1.1);
}

.hero-features {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 1.5rem;
}

.feature-card {
    background: var(--card-bg);
    padding: 1.5rem;
    border-radius: 16px;
    text-align: center;
    transition: var(--transition);
    box-shadow: 0 10px 25px var(--shadow-color);
    border: 1px solid var(--border-color);
    position: relative;
    z-index: 1;
    overflow: hidden;
}

.feature-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(135deg, rgba(90, 103, 216, 0.03), rgba(124, 58, 237, 0.03));
    z-index: -1;
}

.feature-card:hover {
    transform: translateY(-8px);
    box-shadow: 0 15px 35px var(--shadow-color);
}

.feature-card.highlight {
    background: linear-gradient(135deg, var(--gradient-start), var(--gradient-end));
    color: white;
}

.feature-card.highlight .feature-icon {
    background: rgba(255, 255, 255, 0.2);
    color: white;
}

.feature-card.highlight h3,
.feature-card.highlight p {
    color: white;
}

.feature-icon {
    width: 60px;
    height: 60px;
    border-radius: 50%;
    background: rgba(90, 103, 216, 0.1);
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 1rem;
    font-size: 1.5rem;
    color: var(--primary-color);
    transition: var(--transition);
}

.feature-card:hover .feature-icon {
    transform: scale(1.1);
    background: rgba(90, 103, 216, 0.2);
}

.feature-card h3 {
    font-size: 1.1rem;
    margin-bottom: 0.8rem;
    color: var(--primary-color);
}

.feature-card p {
    font-size: 0.9rem;
    margin-bottom: 1rem;
    color: var(--text-light);
}

.feature-card.highlight .btn {
    background: white;
    color: var(--primary-color);
}

.feature-card.highlight .btn:hover {
    background: rgba(255, 255, 255, 0.9);
    transform: translateY(-3px);
}

/* Responsive Design */
@media (max-width: 1024px) {
    .hero-content {
        grid-template-columns: 1fr;
        gap: 2rem;
        text-align: center;
    }

    .hero-stats {
        display: flex !important;
        flex-direction: row !important;
        justify-content: center;
        gap: 1.5rem;
        flex-wrap: wrap;
        /* only wrap on very small screens */
        margin-top: 1.5rem;
        width: 100%;
        /* ensure container fits the screen */
        box-sizing: border-box;
    }

    .stat {
        text-align: center;
        /* numbers and labels centered */
    }

    .hero-features {
        grid-template-columns: repeat(2, 1fr);
    }

    .hero-cta {
        flex-direction: row !important;
        /* force horizontal row */
        justify-content: center;
        /* center horizontally */
        gap: 1rem;
        /* space between buttons */
        flex-wrap: wrap;
        /* wrap if very small screen */
    }

    .hero-cta .btn {
        flex: none;
        /* prevent buttons from stretching */
        min-width: 120px;
        /* optional: keep buttons consistent size */
    }
}

@media (max-width: 768px) {
    .hero-text h1 {
        font-size: 2.5rem;
    }

    .hero-text h2 {
        font-size: 1.2rem;
    }

    .hero-cta {
        flex-direction: row !important;
        /* force horizontal row */
        justify-content: center;
        /* center horizontally */
        gap: 1rem;
        /* space between buttons */
        flex-wrap: wrap;
        /* wrap if very small screen */
    }

    .hero-cta .btn {
        flex: none;
        /* prevent buttons from stretching */
        min-width: 120px;
        /* optional: keep buttons consistent size */
    }

    .hero-stats {
        display: flex !important;
        flex-direction: row !important;
        justify-content: center;
        gap: 1.5rem;
        flex-wrap: wrap;

        margin-top: 1.5rem;
        width: 100%;

        box-sizing: border-box;
    }

    .stat {
        text-align: center;

    }

    .hero-features {
        grid-template-columns: 1fr;
    }

    .product-showcase {
        padding: 1.5rem;
    }
}

@media (max-width: 480px) {
    .hero {
        padding: 1.5rem 1rem 3rem;
    }

    .hero-text h1 {
        font-size: 2rem;
    }

    .hero-text h2 {
        font-size: 1.1rem;
    }

    .hero-description {
        font-size: 1rem;
    }

    .hero-cta {
        flex-direction: row !important;
        /* force horizontal row */
        justify-content: center;
        /* center horizontally */
        gap: 1rem;
        /* space between buttons */
        flex-wrap: wrap;
        /* wrap if very small screen */
    }

    .hero-cta .btn {
        flex: none;
        /* prevent buttons from stretching */
        min-width: 120px;
        /* optional: keep buttons consistent size */
    }
}

/* =============== FEATURE HIGHLIGHT SECTION =============== */
.feature-highlight {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 2rem;
    padding: 4rem 2rem;
    background: linear-gradient(to bottom, var(--bg-color), var(--bg-secondary));
}

.feature-item {
    background: var(--card-bg);
    padding: 2rem;
    border-radius: 16px;
    text-align: center;
    transition: var(--transition);
    box-shadow: 0 10px 30px var(--shadow-color);
}

.feature-item:hover {
    transform: translateY(-10px);
}

/* =============== ICONS =============== */
.icon-large {
    font-size: 2.5rem;
    margin-bottom: 1rem;
    color: var(--primary-color);
}

.icon-huge {
    font-size: 3.5rem;
    margin-bottom: 1.5rem;
    color: var(--primary-color);
}

.step-icon {
    font-size: 1.8rem;
    margin-right: 1rem;
    color: var(--primary-color);
}

/* =============== PRODUCTS SECTION =============== */
.products {
    padding: 5rem 2rem;
}

.product-gallery {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
}

.product-item {
    background: var(--card-bg);
    border-radius: 16px;
    overflow: hidden;
    transition: var(--transition);
    box-shadow: 0 10px 30px var(--shadow-color);
}

.product-item:hover {
    transform: translateY(-10px);
}

.product-item img {
    width: 100%;
    height: 200px;
    object-fit: cover;
}

.product-info {
    padding: 1.5rem;
}

/* =============== USAGE SECTION =============== */
.usage-gallery {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
}

.usage-card {
    background: var(--card-bg);
    border-radius: 16px;
    overflow: hidden;
    transition: var(--transition);
    box-shadow: 0 10px 30px var(--shadow-color);
}

.usage-card:hover {
    transform: translateY(-10px);
}

.usage-card img {
    width: 100%;
    height: 200px;
    object-fit: cover;
}

.usage-card h4,
.usage-card p {
    padding: 0 1.5rem;
}

.usage-card h4 {
    margin-top: 1.5rem;
    margin-bottom: 0.5rem;
}

/* =============== REVIEWS SECTION =============== */
/* =============== REVIEWS SECTION =============== */
.reviews {
    padding: 5rem 2rem;
    position: relative;
    overflow: hidden;
    background: linear-gradient(to bottom, var(--bg-secondary), var(--bg-color));
}

.review-gallery {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 2rem;
    position: relative;
}

/* Dynamic background animation */
.reviews::before {
    content: '';
    position: absolute;
    width: 200%;
    height: 200%;
    top: -50%;
    left: -50%;
    background: radial-gradient(circle at 50% 50%, rgba(255, 255, 255, 0.08), transparent 70%);
    animation: rotateBG 60s linear infinite;
    z-index: 0;
}

@keyframes rotateBG {
    0% {
        transform: rotate(0deg);
    }

    100% {
        transform: rotate(360deg);
    }
}

.review-item {
    position: relative;
    overflow: visible;
    cursor: pointer;
    z-index: 1;
}

.review-img-container {
    position: relative;
    overflow: hidden;
    border-radius: 16px;
}

.review-img-container::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 100%;
    height: 60%;
    pointer-events: none;
    background: linear-gradient(to top, rgba(0, 0, 0, 0.6), transparent 70%);
    border-radius: inherit;
}

.review-img {
    width: 100%;
    display: block;
    border-radius: inherit;
    transition: transform 0.8s ease, filter 1s ease;
    filter: contrast(1.1) saturate(1.2);
    animation: gentleMove 15s ease-in-out infinite alternate;
}

/* Subtle floating & color shift */
@keyframes gentleMove {
    0% {
        transform: scale(1) translateY(0) rotate(0deg);
        filter: hue-rotate(0deg);
    }

    50% {
        transform: scale(1.03) translateY(-5px) rotate(0.3deg);
        filter: hue-rotate(15deg);
    }

    100% {
        transform: scale(1) translateY(0) rotate(-0.3deg);
        filter: hue-rotate(-10deg);
    }
}

.review-img-container:hover .review-img {
    transform: scale(1.08) rotate(0deg);
    filter: hue-rotate(0deg) saturate(1.3) brightness(1.1);
}

/* Name overlay */
.name-overlay {
    position: absolute;
    bottom: 50px;
    left: 50%;
    transform: translateX(-50%);
    padding: 0.6rem 1.2rem;
    color: #fff;
    font-weight: 600;
    font-size: 1rem;
    text-align: center;
    backdrop-filter: blur(6px) brightness(0.6);
    background: rgba(0, 0, 0, 0.25);
    border-radius: 12px;
    z-index: 2;
}

/* Stars under name */
.stars {
    position: absolute;
    bottom: 10px;
    left: 50%;
    transform: translateX(-50%);
    font-size: 1.3rem;
    color: #ffc107;
    backdrop-filter: blur(6px) brightness(0.6);
    background: rgba(0, 0, 0, 0.25);
    padding: 0.3rem 0.8rem;
    border-radius: 12px;
    z-index: 2;
}

/* Bottom fading / sandy splash */
.splash {
    position: absolute;
    bottom: 0;
    left: 0;
    width: 100%;
    height: 60%;
    background: linear-gradient(to top, rgba(41, 226, 158, 0.9), transparent 90%);
    pointer-events: none;
    animation: splashFade 4s ease-in-out infinite alternate;
}

@keyframes splashFade {
    0% {
        opacity: 0.5;
        transform: translateY(0) scaleX(1);
    }

    50% {
        opacity: 0.7;
        transform: translateY(-4px) scaleX(1.02);
    }

    100% {
        opacity: 0.5;
        transform: translateY(0) scaleX(1);
    }
}

/* =============== FEATURES SECTION =============== */
.features-container {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 3rem;
    align-items: center;
}

.features-image img {
    width: 100%;
    border-radius: 16px;
    box-shadow: 0 10px 30px var(--shadow-color);
}

.features-steps {
    display: flex;
    flex-direction: column;
    gap: 2rem;
}

.step {
    display: flex;
    align-items: flex-start;
    padding: 1.5rem;
    background: var(--card-bg);
    border-radius: 16px;
    transition: var(--transition);
    box-shadow: 0 10px 30px var(--shadow-color);
}

.step:hover {
    transform: translateX(10px);
}

.step h4 {
    margin-bottom: 0.5rem;
}

/* =============== PRICING SECTION =============== */
.pricing {
    padding: 5rem 2rem;
    background: linear-gradient(to bottom, var(--bg-color), var(--bg-secondary));
}

.price-cards {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
}

.price-card {
    border-radius: 16px;
    text-align: center;
    transition: var(--transition);
    padding: 2.5rem 2rem;
    position: relative;
    box-shadow: 0 10px 30px var(--shadow-color);
    overflow: hidden;
}

.price-card:hover {
    transform: translateY(-10px);
}

.price {
    font-size: 2.5rem;
    font-weight: 700;
    color: black;
    margin: 1.5rem 0;
}

.old-price {
    text-decoration: line-through;
    color: var(--neutral-medium);
    margin-right: 0.5rem;
    font-weight: 500;
}

.price-card ul {
    list-style: none;
    text-align: left;
    margin: 1.5rem 0;
}

.price-card li {
    margin-bottom: 0.8rem;
    display: flex;
    align-items: center;
}

.price-card li i {
    margin-right: 0.5rem;
}

.faded {
    opacity: 0.5;
}




#glow-core>*,
#glow-pro>* {
    position: relative;
    z-index: 1;
}

#glow-core::before,
#glow-pro::before {
    content: "";
    position: absolute;
    top: -50%;
    left: -50%;
    width: 200%;
    height: 200%;
    border-radius: 16px;
    z-index: 0;
    background: linear-gradient(60deg,
            rgba(120, 114, 114, 0.8),
            rgba(78, 205, 196, 0.8),
            rgba(255, 107, 107, 0.8),
            rgba(255, 209, 102, 0.8));
    background-size: 400% 400%;
    /* make gradient large for animation */
    animation: gradientMove 8s ease infinite;
}

@keyframes gradientMove {
    0% {
        background-position: 0% 50%;
    }

    50% {
        background-position: 100% 50%;
    }

    100% {
        background-position: 0% 50%;
    }
}

/* =============== Knee Pain Relief Section =============== */
.knee-relief {
    padding: 5rem 2rem;
    background: var(--bg-secondary);
    color: var(--text-color);
}

.knee-relief .section-title {
    text-align: center;
    font-size: 2.5rem;
    font-weight: 700;
    margin-bottom: 3rem;
    color: var(--primary-color);
}

.relief-cards {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2.5rem;
}

.relief-card {
    background: var(--card-bg);
    padding: 2rem;
    border-radius: 16px;
    box-shadow: 0 10px 30px var(--shadow-color);
    text-align: center;
    position: relative;
    overflow: hidden;
    transition: transform 0.4s ease, box-shadow 0.4s ease;
}

.relief-card:hover {
    transform: translateY(-10px);
    box-shadow: 0 15px 35px var(--shadow-color);
}

.image-holder {
    width: 100%;
    height: 180px;
    margin-bottom: 1.5rem;
    overflow: hidden;
    border-radius: 12px;
}

.image-holder img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.5s ease;
}

.relief-card:hover .image-holder img {
    transform: scale(1.05);
}

.relief-card h3 {
    font-size: 1.5rem;
    font-weight: 700;
    margin-bottom: 1rem;
    color: var(--primary-color);
}

.relief-card p {
    font-size: 1rem;
    line-height: 1.6;
    margin-bottom: 1rem;
}

.relief-list {
    list-style: none;
    text-align: left;
    padding-left: 1rem;
}

.relief-list li {
    position: relative;
    margin-bottom: 0.8rem;
    padding-left: 1.5rem;
    font-weight: 500;
    color: var(--neutral-dark);
    opacity: 0;
    transform: translateY(20px);
    animation: slideIn 0.5s forwards;
}

.relief-list li::before {
    content: "✔";
    position: absolute;
    left: 0;
    color: var(--secondary-color);
}

.relief-list li:nth-child(1) {
    animation-delay: 0.2s;
}

.relief-list li:nth-child(2) {
    animation-delay: 0.4s;
}

.relief-list li:nth-child(3) {
    animation-delay: 0.6s;
}

.relief-list li:nth-child(4) {
    animation-delay: 0.8s;
}

@keyframes slideIn {
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* Card pop-up animation */
.animate-pop {
    opacity: 0;
    transform: translateY(40px);
    animation: popUp 0.8s forwards;
}

.animate-pop.delay-1 {
    animation-delay: 0.2s;
}

.animate-pop.delay-2 {
    animation-delay: 0.4s;
}

@keyframes popUp {
    to {
        opacity: 1;
        transform: translateY(0);
    }
}


/* =============== FAQ SECTION =============== */
.faq {
    padding: 5rem 2rem;
}

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

.faq-item {
    margin-bottom: 1.5rem;
    border-radius: 12px;
    overflow: hidden;
    box-shadow: 0 5px 15px var(--shadow-color);
}

.faq-question {
    display: block;
    padding: 1.5rem;
    background: var(--card-bg);
    cursor: pointer;
    font-weight: 600;
    position: relative;
    transition: var(--transition);
}

.faq-question:hover {
    background: var(--primary-color);
    color: white;
}

.faq-question::after {
    content: '+';
    position: absolute;
    right: 1.5rem;
    top: 50%;
    transform: translateY(-50%);
    font-size: 1.5rem;
}

.faq-item input[type="checkbox"] {
    display: none;
}

.faq-answer {
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.3s ease;
    background: var(--bg-color);
}

.faq-item input[type="checkbox"]:checked~.faq-answer {
    max-height: 500px;
}

.faq-item input[type="checkbox"]:checked~.faq-question::after {
    content: '-';
}

.faq-answer p {
    padding: 1.5rem;
    margin: 0;
}

/* =============== CTA SECTION =============== */
.cta-section {
    padding: 5rem 2rem;
    text-align: center;
    background: linear-gradient(to bottom, var(--bg-secondary), var(--bg-color));
}

.cta-subtext {
    font-size: 1.2rem;
    margin-bottom: 3rem;
    max-width: 700px;
    margin-left: auto;
    margin-right: auto;
}

.order-form {
    background: var(--card-bg);
    padding: 3rem;
    border-radius: 16px;
    box-shadow: 0 10px 30px var(--shadow-color);
    max-width: 800px;
    margin: 0 auto;
    text-align: left;
}

.warning {
    background: rgba(231, 76, 60, 0.1);
    border-left: 4px solid var(--error-color);
    padding: 1rem;
    margin-bottom: 2rem;
    border-radius: 4px;
    display: flex;
    align-items: center;
}

.warning i {
    margin-right: 0.5rem;
    color: var(--error-color);
}

.form-group {
    margin-bottom: 1.5rem;
}

.form-group label {
    display: block;
    margin-bottom: 0.5rem;
    font-weight: 600;
}

.form-group input,
.form-group select {
    width: 100%;
    padding: 0.8rem 1rem;
    border: 1px solid var(--border-color);
    border-radius: 8px;
    background: var(--bg-color);
    color: var(--text-color);
    transition: var(--transition);
}

.form-group input:focus,
.form-group select:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(74, 132, 250, 0.2);
}

.phone-group {
    display: flex;
    gap: 0.5rem;
}

.phone-group select {
    flex: 0 0 120px;
}

.phone-group input {
    flex: 1;
}

.radio-group {
    display: flex;
    gap: 1.5rem;
}

.radio-group label {
    display: flex;
    align-items: center;
    font-weight: normal;
    cursor: pointer;
}

.radio-group input {
    width: auto;
    margin-right: 0.5rem;
}

.required {
    color: var(--error-color);
}

/* =============== FOOTER =============== */
footer {
    background: var(--bg-secondary);
    padding: 3rem 2rem;
    text-align: center;
}

.footer-content {
    max-width: 1200px;
    margin: 0 auto;
}

.footer-logo {
    font-family: 'Orbitron', sans-serif;
    font-size: 2rem;
    font-weight: 700;
    color: var(--primary-color);
    margin-bottom: 1rem;
}

.footer-logo span {
    color: var(--secondary-color);
}

.footer-links {
    display: flex;
    justify-content: center;
    gap: 2rem;
    margin: 1.5rem 0;
}

.footer-links a {
    color: var(--text-color);
    text-decoration: none;
    transition: var(--transition);
}

.footer-links a:hover {
    color: var(--primary-color);
}

.social-icons {
    display: flex;
    justify-content: center;
    gap: 1rem;
    margin-top: 1.5rem;
}

.social-icon {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 40px;
    height: 40px;
    border-radius: 50%;
    background: var(--bg-color);
    color: var(--text-color);
    transition: var(--transition);
}

.social-icon:hover {
    background: var(--primary-color);
    color: white;
    transform: translateY(-5px);
}

/* =============== ANIMATIONS & EFFECTS =============== */
@keyframes fadeIn {
    from {
        opacity: 0;
    }

    to {
        opacity: 1;
    }
}

@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(20px);
    }

    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes pulse {
    0% {
        box-shadow: 0 0 0 0 rgba(74, 132, 250, 0.4);
    }

    70% {
        box-shadow: 0 0 0 15px rgba(74, 132, 250, 0);
    }

    100% {
        box-shadow: 0 0 0 0 rgba(74, 132, 250, 0);
    }
}

@keyframes glow {
    0% {
        box-shadow: 0 0 5px var(--glow-color);
    }

    50% {
        box-shadow: 0 0 20px var(--glow-color);
    }

    100% {
        box-shadow: 0 0 5px var(--glow-color);
    }
}

@keyframes glitch {
    0% {
        text-shadow: 2px 2px var(--primary-color), -2px -2px var(--secondary-color);
    }

    25% {
        text-shadow: -2px 2px var(--primary-color), 2px -2px var(--secondary-color);
    }

    50% {
        text-shadow: 2px -2px var(--primary-color), -2px 2px var(--secondary-color);
    }

    75% {
        text-shadow: -2px -2px var(--primary-color), 2px 2px var(--secondary-color);
    }

    100% {
        text-shadow: 2px 2px var(--primary-color), -2px -2px var(--secondary-color);
    }
}

.animate-card {
    animation: fadeInUp 0.8s ease forwards;
}

.animate-card:nth-child(2) {
    animation-delay: 0.2s;
}

.animate-card:nth-child(3) {
    animation-delay: 0.4s;
}

.pulse-effect {
    animation: pulse 2s infinite;
}

.pulse-text {
    animation: pulse 2s infinite;
}

.glitch {
    animation: glitch 1s infinite;
}

.glowing-element {
    animation: glow 2s infinite;
}

.gradient-border {
    border: 2px solid transparent;
    background-clip: padding-box;
    position: relative;
    background: var(--card-bg);
}

.gradient-border::before {
    content: '';
    position: absolute;
    top: -2px;
    left: -2px;
    right: -2px;
    bottom: -2px;
    background: linear-gradient(135deg, var(--gradient-start), var(--gradient-end));
    border-radius: inherit;
    z-index: -1;
}

.gradient-card-hover {
    position: relative;
    overflow: hidden;
}

.gradient-card-hover::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(108, 92, 231, 0.1), transparent);
    transition: 0.5s;
}

.gradient-card-hover:hover::before {
    left: 100%;
}

.animated-gradient-bg {
    background: linear-gradient(270deg, var(--gradient-start), var(--secondary-color), var(--accent-color));
    background-size: 600% 600%;
    animation: gradientShift 3s ease infinite;
}

@keyframes gradientShift {
    0% {
        background-position: 0% 50%
    }

    50% {
        background-position: 100% 50%
    }

    100% {
        background-position: 0% 50%
    }
}

.animated-gradient-border {
    position: relative;
    border-radius: 16px;
    background: var(--card-bg);
}

.animated-gradient-border::before {
    content: '';
    position: absolute;
    top: -2px;
    left: -2px;
    right: -2px;
    bottom: -2px;
    background: linear-gradient(45deg, var(--gradient-start), var(--secondary-color), var(--accent-color), var(--gradient-start));
    border-radius: inherit;
    z-index: -1;
    background-size: 400% 400%;
    animation: gradientShift 3s ease infinite;
}

.glowing-btn {
    position: relative;
    z-index: 1;
}

.glowing-btn::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    border-radius: inherit;
    background: linear-gradient(45deg, var(--gradient-start), var(--secondary-color), var(--accent-color), var(--gradient-start));
    background-size: 400% 400%;
    animation: gradientShift 3s ease infinite;
    z-index: -1;
    opacity: 0;
    transition: opacity 0.3s ease;
}

.glowing-btn:hover::before {
    opacity: 1;
}

/* =============== RESPONSIVE DESIGN =============== */
@media (max-width: 1024px) {
    .hero {
        grid-template-columns: 1fr;
        text-align: center;
    }

    .hero-cards {
        grid-template-columns: 1fr;
    }

    .feature-highlight {
        grid-template-columns: 1fr;
    }

    .features-container {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 768px) {
    header {
        flex-direction: column;
        gap: 1rem;
    }

    .nav-links {
        flex-wrap: wrap;
        justify-content: center;
        gap: 1rem;
    }

    h1 {
        font-size: 2.5rem;
    }

    h2.section-title {
        font-size: 2rem;
    }

    .price-cards {
        grid-template-columns: 1fr;
    }

    .featured-price-card {
        transform: scale(1);
    }

    .featured-price-card:hover {
        transform: translateY(-10px);
    }

    .phone-group {
        flex-direction: column;
    }

    .phone-group select {
        flex: 1;
    }
}

@media (max-width: 480px) {
    section {
        padding: 3rem 1rem;
    }

    .hero {
        padding: 2rem 1rem;
    }

    .order-form {
        padding: 1.5rem;
    }

    .radio-group {
        flex-direction: column;
        gap: 0.5rem;
    }
}

/* =============== SCROLL TO TOP BUTTON =============== */
.scroll-to-top {
    position: fixed;
    bottom: 80px;
    right: 20px;
    width: 50px;
    height: 50px;
    border-radius: 50%;
    background: var(--primary-color);
    color: white;
    border: none;
    font-size: 1.2rem;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: 0 4px 15px rgba(255, 107, 107, 0.3);
    transition: all 0.3s ease;
    opacity: 0;
    visibility: hidden;
    z-index: 2000;
}

.scroll-to-top.visible {
    opacity: 1;
    visibility: visible;
}

.scroll-to-top:hover {
    background: linear-gradient(135deg, var(--gradient-start), var(--gradient-end));
    transform: translateY(-5px);
    box-shadow: 0 8px 25px rgba(255, 107, 107, 0.4);
}