:root {
    /* Colors */
    --tk-color-primary: #0066FF;
    --tk-color-primary-dark: #0052CC;
    --tk-color-secondary: #4A90E2;
    --tk-color-secondary-dark: #357ABD;
    --tk-color-text-primary: #1a1a1a;
    --tk-color-text-secondary: #666;
    --tk-color-text-light: rgba(255, 255, 255, 0.8);
    --tk-color-white: #ffffff;
    --tk-color-black: #000;
    --tk-color-bg-main: #f8f9fa;
    --tk-color-bg-dark: #0a0a0a;
    --tk-color-bg-dark-gradient-start: #1a1a1a;
    --tk-color-bg-dark-gradient-end: #2d2d2d;
    --tk-color-bg-card: rgba(124, 177, 237, 0.5);
    --tk-color-bg-white-transparent: rgba(255, 255, 255, 0.9);
    --tk-color-bg-white-semi: rgba(255, 255, 255, 0.8);
    --tk-color-bg-white-overlay: rgba(255, 255, 255, 0.95);
    --tk-color-border: #e0e0e0;
    --tk-color-border-light: rgba(74, 144, 226, 0.1);
    --tk-color-line: #C0CBD6;
    --tk-color-dot-inactive: #99ACC2;
    /* Spacing */
    --tk-space-xs: 0.3rem;
    --tk-space-sm: 0.5rem;
    --tk-space-md: 0.75rem;
    --tk-space-lg: 1rem;
    --tk-space-xl: 1.5rem;
    --tk-space-2xl: 2rem;
    --tk-space-3xl: 2.5rem;
    --tk-space-4xl: 3rem;
    --tk-space-5xl: 4rem;
    --tk-space-6xl: 5rem;
    --tk-space-8xl: 8rem;
    /* Border Radius */
    --tk-radius-sm: 8px;
    --tk-radius-md: 12px;
    --tk-radius-lg: 16px;
    --tk-radius-xl: 20px;
    --tk-radius-2xl: 24px;
    --tk-radius-round: 50%;
    /* Font Sizes */
    --tk-font-xs: 0.9rem;
    --tk-font-sm: 0.95rem;
    --tk-font-base: 1rem;
    --tk-font-lg: 1.25rem;
    --tk-font-xl: 1.5rem;
    --tk-font-2xl: 2rem;
    /* Dimensions */
    --tk-icon-sm: 18px;
    --tk-icon-md: 24px;
    --tk-icon-lg: 28px;
    --tk-icon-xl: 30px;
    --tk-icon-2xl: 35px;
    --tk-icon-3xl: 40px;
    --tk-icon-box-sm: 32px;
    --tk-icon-box-md: 60px;
    --tk-icon-box-lg: 70px;
    --tk-icon-box-xl: 80px;
    --tk-node-size: 70px;
    --tk-menu-btn-size: 45px;
    --tk-navbar-height: 60px;
    --tk-carousel-height: 600px;
    --tk-bottom-card-min-height: 140px;
    /* Shadows */
    --tk-shadow-sm: 0 4px 12px rgba(0, 0, 0, 0.08);
    --tk-shadow-md: 0 4px 20px rgba(0, 0, 0, 0.05);
    --tk-shadow-lg: 0 8px 20px rgba(0, 0, 0, 0.15);
    --tk-shadow-xl: 0 20px 40px rgba(74, 144, 226, 0.15);
    --tk-shadow-2xl: 0 20px 60px rgba(74, 144, 226, 0.2);
    --tk-shadow-blue: 0 8px 24px rgba(0, 102, 255, 0.2);
    --tk-shadow-blue-lg: 0 8px 24px rgba(0, 102, 255, 0.3);
    --tk-shadow-primary: 0 10px 30px rgba(74, 144, 226, 0.3);
    --tk-shadow-primary-lg: 0 10px 30px rgba(74, 144, 226, 0.4);
    /* Transitions */
    --tk-transition-base: all 0.3s ease;
    --tk-transition-slow: all 0.4s ease;
    --tk-transition-opacity: opacity 0.6s ease, visibility 0.6s ease;
    /* Padding */
    --tk-padding-btn: 0.75rem 1.5rem;
    --tk-padding-btn-lg: 1.25rem 2.5rem;
    --tk-padding-card: var(--tk-space-3xl);
    --tk-padding-section: var(--tk-space-8xl) 5%;
    /* Line Heights */
    --tk-line-height-tight: 1.1;
    --tk-line-height-snug: 1.2;
    --tk-line-height-normal: 1.6;
    --tk-line-height-relaxed: 1.7;
    --tk-line-height-loose: 1.8;
    /* Letter Spacing */
    --tk-letter-spacing-tight: -2px;
    --tk-letter-spacing-normal: -1px;
    --tk-letter-spacing-wide: 0.5px;
}

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

body {
    font-family: 'DM Sans', sans-serif;
    overflow-x: hidden;
    background: var(--tk-color-bg-main);
    color: var(--tk-color-text-primary);
}

/* Image Modal */
.image-modal {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.95);
    z-index: 10000;
    justify-content: center;
    align-items: center;
    opacity: 0;
    transition: opacity 0.3s ease;
}

    .image-modal.active {
        display: flex;
        opacity: 1;
    }

.image-modal-content {
    position: relative;
    max-width: 90%;
    max-height: 90vh;
    animation: modalZoom 0.3s ease-out;
}

    .image-modal-content img {
        width: 100%;
        height: auto;
        max-height: 90vh;
        object-fit: contain;
        border-radius: var(--tk-radius-xl);
        box-shadow: 0 20px 80px rgba(0, 0, 0, 0.5);
    }

.modal-close {
    position: absolute;
    top: -50px;
    right: 0;
    width: 40px;
    height: 40px;
    background: var(--tk-color-white);
    border: none;
    border-radius: var(--tk-radius-round);
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: var(--tk-transition-base);
    z-index: 10001;
}

    .modal-close:hover {
        background: var(--tk-color-primary);
        transform: rotate(90deg);
    }

    .modal-close svg {
        width: 20px;
        height: 20px;
        stroke: var(--tk-color-text-primary);
        transition: var(--tk-transition-base);
    }

    .modal-close:hover svg {
        stroke: var(--tk-color-white);
    }

@keyframes modalZoom {
    from {
        transform: scale(0.7);
        opacity: 0;
    }

    to {
        transform: scale(1);
        opacity: 1;
    }
}

/* Three.js Background */
#three-background {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 0;
    pointer-events: none;
}

/* Header */
.header {
    position: fixed;
    top: 0;
    width: 100%;
    z-index: 1000;
    padding: var(--tk-space-xl) 5%;
    backdrop-filter: blur(20px);
    background: var(--tk-color-bg-white-semi);
    border-bottom: 1px solid var(--tk-color-border-light);
    transition: var(--tk-transition-base);
}

    .header.scrolled {
        background: var(--tk-color-bg-white-overlay);
        box-shadow: var(--tk-shadow-md);
    }

.nav-container {
    max-width: 1400px;
    margin: 0 auto;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo {
    font-size: var(--tk-font-xl);
    font-weight: 700;
    color: var(--tk-color-text-primary);
    font-family: 'Space Mono', monospace;
    letter-spacing: -0.5px;
}

.nav-buttons {
    display: flex;
    gap: var(--tk-space-lg);
}

.btn {
    padding: var(--tk-padding-btn);
    border: none;
    border-radius: var(--tk-radius-md);
    font-weight: 500;
    cursor: pointer;
    transition: var(--tk-transition-base);
    font-size: var(--tk-font-sm);
    font-family: 'DM Sans', sans-serif;
}

.btn-secondary {
    background: var(--tk-color-white);
    color: var(--tk-color-text-primary);
    border: 1px solid var(--tk-color-border);
}

    .btn-secondary:hover {
        background: rgba(74, 144, 226, 0.1);
    }

.btn-primary {
    background: var(--tk-color-text-primary);
    color: var(--tk-color-white);
}

    .btn-primary:hover {
        background: var(--tk-color-black);
        transform: translateY(-2px);
        box-shadow: var(--tk-shadow-lg);
    }

.menu-btn {
    width: var(--tk-menu-btn-size);
    height: var(--tk-menu-btn-size);
    background: var(--tk-color-text-primary);
    border-radius: var(--tk-radius-round);
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    border: none;
}

/* Hero Section */
.hero {
    position: relative;
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: var(--tk-padding-section);
    padding-top: var(--tk-space-8xl);
    padding-bottom: var(--tk-space-5xl);
    z-index: 1;
}

.hero-content {
    max-width: 1400px;
    width: 100%;
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--tk-space-5xl);
    align-items: center;
}

.hero-text {
    opacity: 0;
    transform: translateY(30px);
}

    .hero-text.animate {
        animation: fadeInUp 1s ease-out forwards;
    }

.hero-title {
    font-size: clamp(3rem, 8vw, 5.5rem);
    font-weight: 700;
    line-height: var(--tk-line-height-tight);
    margin-bottom: var(--tk-space-2xl);
    color: var(--tk-color-text-primary);
    letter-spacing: var(--tk-letter-spacing-tight);
}

    .hero-title .highlight {
        color: var(--tk-color-primary);
        background: linear-gradient(135deg, var(--tk-color-primary) 0%, var(--tk-color-secondary-dark) 100%);
        -webkit-background-clip: text;
        -webkit-text-fill-color: transparent;
        background-clip: text;
    }

.hero-description {
    font-size: var(--tk-font-lg);
    line-height: var(--tk-line-height-loose);
    color: var(--tk-color-text-secondary);
    margin-bottom: var(--tk-space-3xl);
    max-width: 600px;
}

.hero-cta {
    display: flex;
    gap: var(--tk-space-lg);
}

.btn-large {
    padding: var(--tk-padding-btn-lg);
    font-size: 1.1rem;
    border-radius: 14px;
}

.hero-visual {
    position: relative;
    animation: float 6s ease-in-out infinite;
}

.visual-dashboard {
    background: var(--tk-color-bg-white-transparent);
    backdrop-filter: blur(20px);
    border-radius: var(--tk-radius-md);
    padding: var(--tk-space-lg);
    box-shadow: var(--tk-shadow-2xl);
    border: 1px solid var(--tk-color-border-light);
    overflow: hidden;
}

.dashboard-image {
    width: 100%;
    height: auto;
    border-radius: var(--tk-radius-lg);
    display: block;
}

/* NEW PHONE MOCKUP SECTION */
.phone-showcase {
    position: relative;
    padding: var(--tk-padding-section);
    background: var(--tk-color-bg-white-semi);
    z-index: 1;
}

.phone-showcase-container {
    max-width: 1200px;
    margin: 0 auto;
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--tk-space-6xl);
    align-items: center;
}

/* Left Content */
.showcase-left {
    opacity: 0;
    transform: translateX(-50px);
}

    .showcase-left.animate {
        animation: fadeInLeft 1s ease-out forwards;
    }

.showcase-tag {
    display: inline-block;
    padding: var(--tk-space-sm) var(--tk-space-xl);
    background: rgba(74, 144, 226, 0.1);
    color: var(--tk-color-primary);
    border-radius: 30px;
    font-weight: 600;
    font-size: var(--tk-font-xs);
    margin-bottom: var(--tk-space-lg);
    letter-spacing: var(--tk-letter-spacing-wide);
}

.showcase-brand {
    font-size: clamp(2.5rem, 5vw, 4rem);
    font-weight: 700;
    line-height: var(--tk-line-height-tight);
    margin-bottom: var(--tk-space-2xl);
    color: var(--tk-color-text-primary);
    letter-spacing: var(--tk-letter-spacing-tight);
}

    .showcase-brand .highlight {
        color: var(--tk-color-primary);
        background: linear-gradient(135deg, var(--tk-color-primary) 0%, var(--tk-color-secondary-dark) 100%);
        -webkit-background-clip: text;
        -webkit-text-fill-color: transparent;
        background-clip: text;
    }

.showcase-description {
    font-size: var(--tk-font-lg);
    line-height: var(--tk-line-height-loose);
    color: var(--tk-color-text-secondary);
    margin-bottom: var(--tk-space-4xl);
}

/* Right Phone Image */
.phone-mockup-wrapper {
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    transform: translateX(50px);
}

    .phone-mockup-wrapper.animate {
        animation: fadeInRight 1s ease-out forwards;
    }

.phone-image {
    width: 100%;
    max-width: 550px;
    height: auto;
    filter: drop-shadow(0 20px 60px rgba(74, 144, 226, 0.2));
    transition: var(--tk-transition-slow);
}

    .phone-image:hover {
        transform: translateY(-10px);
        filter: drop-shadow(0 30px 80px rgba(74, 144, 226, 0.3));
    }

/* Carousel Section - FULL WIDTH DESIGN */
.carousel-section {
    position: relative;
    width: 100vw;
    padding: 0;
    background: var(--tk-color-bg-white-semi);
    z-index: 1;
    margin-left: calc(-50vw + 50%);
}

.carousel-wrapper {
    width: 100%;
    padding: var(--tk-space-lg);
}

.carousel-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    grid-template-rows: auto 1fr;
    gap: var(--tk-space-xs);
}

/* Top Column - spans across both columns */
.top-column {
    grid-column: 1 / -1;
    background: var(--tk-color-bg-card);
    border-radius: var(--tk-radius-md);
    padding: var(--tk-space-lg) var(--tk-space-xl);
    display: flex;
    align-items: center;
    gap: var(--tk-space-md);
    height: var(--tk-navbar-height);
}

.top-column-icon {
    width: var(--tk-icon-box-sm);
    height: var(--tk-icon-box-sm);
    background: var(--tk-color-primary);
    border-radius: var(--tk-radius-sm);
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}

    .top-column-icon svg {
        width: var(--tk-icon-sm);
        height: var(--tk-icon-sm);
        stroke: var(--tk-color-white);
        fill: none;
        stroke-width: 2;
    }

.top-column-text {
    font-size: var(--tk-font-sm);
    color: var(--tk-color-text-primary);
    font-weight: 500;
}

/* Left Content - Visual Slides */
.left-content {
    background: var(--tk-color-bg-card);
    border-radius: var(--tk-radius-md);
    padding: var(--tk-padding-card);
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
    overflow: hidden;
    min-height: 500px;
}

/* Slides in left content */
.slide-content {
    position: absolute;
    width: 100%;
    height: 100%;
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    visibility: hidden;
    transition: var(--tk-transition-opacity);
}

    .slide-content.active {
        opacity: 1;
        visibility: visible;
    }

/* Icon Grid with Connection Lines */
.icon-grid-container {
    position: relative;
    width: 100%;
    max-width: 400px;
    height: 400px;
}

.grid-svg {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 1;
}

.icon-nodes {
    position: relative;
    z-index: 2;
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    grid-template-rows: repeat(3, 1fr);
    gap: var(--tk-space-2xl);
    width: 100%;
    height: 100%;
}

.icon-node {
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--tk-color-white);
    border-radius: var(--tk-radius-lg);
    width: var(--tk-node-size);
    height: var(--tk-node-size);
    box-shadow: var(--tk-shadow-sm);
    transition: var(--tk-transition-base);
    cursor: pointer;
    margin: auto;
}

    .icon-node:hover {
        transform: scale(1.1);
        box-shadow: var(--tk-shadow-blue);
    }

    .icon-node.center {
        background: linear-gradient(135deg, var(--tk-color-primary) 0%, var(--tk-color-primary-dark) 100%);
        box-shadow: var(--tk-shadow-blue-lg);
    }

    .icon-node svg {
        width: var(--tk-icon-md);
        height: var(--tk-icon-md);
        stroke: var(--tk-color-text-secondary);
        fill: none;
        stroke-width: 2;
    }

    .icon-node.center svg {
        stroke: var(--tk-color-white);
        width: var(--tk-icon-lg);
        height: var(--tk-icon-lg);
    }

/* Right Content - Text and Controls */
.right-content {
    display: flex;
    flex-direction: column;
    gap: var(--tk-space-xs);
}

/* Main Text Card */
.text-card {
    flex: 1;
    background: var(--tk-color-bg-card);
    border-radius: var(--tk-radius-md);
    padding: var(--tk-padding-card);
    display: flex;
    flex-direction: column;
    justify-content: space-between;
}

    .text-card h2 {
        font-size: clamp(2rem, 3.5vw, 2.75rem);
        font-weight: 700;
        line-height: var(--tk-line-height-snug);
        margin-bottom: var(--tk-space-xl);
        color: var(--tk-color-text-primary);
        letter-spacing: var(--tk-letter-spacing-normal);
    }

        .text-card h2 .highlight {
            color: var(--tk-color-primary);
        }

    .text-card p {
        font-size: var(--tk-font-base);
        line-height: var(--tk-line-height-relaxed);
        color: var(--tk-color-text-secondary);
        max-width: 500px;
    }

/* Control Card - Dots and Description */
.control-card {
    background: var(--tk-color-bg-card);
    border-radius: var(--tk-radius-md);
    padding: var(--tk-space-2xl);
    display: flex;
    flex-direction: column;
    justify-content: space-between;
    min-height: var(--tk-bottom-card-min-height);
}

/* Pagination Dots */
.carousel-pagination {
    display: flex;
    gap: var(--tk-space-sm);
    align-items: center;
}

.dot {
    width: 10px;
    height: 10px;
    border-radius: var(--tk-radius-round);
    background: var(--tk-color-white);
    cursor: pointer;
    transition: var(--tk-transition-base);
}

    .dot.active {
        background: var(--tk-color-primary);
        width: 32px;
        border-radius: 5px;
    }

    .dot:hover:not(.active) {
        background: var(--tk-color-dot-inactive);
    }

.control-card-content {
    margin-top: var(--tk-space-lg);
}

    .control-card-content p {
        font-size: var(--tk-font-xs);
        line-height: var(--tk-line-height-normal);
        color: var(--tk-color-text-primary);
    }

/* PRICING SECTION */
.pricing-section {
    position: relative;
    padding: var(--tk-padding-section);
    background: var(--tk-color-bg-card);
    z-index: 1;
}

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

.pricing-header {
    text-align: center;
    margin-bottom: var(--tk-space-6xl);
    opacity: 0;
    transform: translateY(30px);
}

    .pricing-header.animate {
        animation: fadeInUp 1s ease-out forwards;
    }

.pricing-tag {
    display: inline-block;
    padding: var(--tk-space-sm) var(--tk-space-xl);
    background: rgba(74, 144, 226, 0.1);
    color: var(--tk-color-primary);
    border-radius: 30px;
    font-weight: 600;
    font-size: var(--tk-font-xs);
    margin-bottom: var(--tk-space-lg);
    letter-spacing: var(--tk-letter-spacing-wide);
}

.pricing-title {
    font-size: clamp(2.5rem, 5vw, 4rem);
    font-weight: 700;
    margin-bottom: var(--tk-space-xl);
    color: var(--tk-color-text-primary);
    letter-spacing: var(--tk-letter-spacing-normal);
}

    .pricing-title .highlight {
        color: var(--tk-color-primary);
    }

.pricing-subtitle {
    font-size: var(--tk-font-lg);
    color: var(--tk-color-text-secondary);
    max-width: 700px;
    margin: 0 auto var(--tk-space-4xl);
    line-height: var(--tk-line-height-normal);
}

/* Tab Switcher */
.pricing-tabs {
    display: flex;
    justify-content: center;
    gap: var(--tk-space-lg);
    margin-bottom: var(--tk-space-5xl);
}

.pricing-tab {
    padding: var(--tk-space-lg) var(--tk-space-4xl);
    background: var(--tk-color-white);
    border-radius: var(--tk-radius-lg);
    font-weight: 600;
    font-size: var(--tk-font-base);
    cursor: pointer;
    transition: var(--tk-transition-base);
    color: var(--tk-color-text-secondary);
}

    .pricing-tab:hover {
        border-color: var(--tk-color-primary);
        color: var(--tk-color-text-primary);
    }

    .pricing-tab.active {
        background: linear-gradient(135deg, var(--tk-color-primary) 0%, var(--tk-color-primary-dark) 100%);
        color: var(--tk-color-white);
        border-color: var(--tk-color-primary);
        box-shadow: var(--tk-shadow-primary);
    }

/* Pricing Cards Grid */
.pricing-cards {
    display: none;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: var(--tk-space-3xl);
    max-width: 1200px;
    margin: 0 auto;
}

    .pricing-cards.active {
        display: grid;
    }

/* Pricing Card */
.pricing-card {
    background: var(--tk-color-white);
    border-radius: var(--tk-radius-md);
    padding: var(--tk-space-4xl);
    transition: var(--tk-transition-slow);
    position: relative;
    display: flex;
    flex-direction: column;
    opacity: 0;
    transform: translateY(30px);
}

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

        .pricing-card.animate:nth-child(1) {
            animation-delay: 0.1s;
        }

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

        .pricing-card.animate:nth-child(3) {
            animation-delay: 0.3s;
        }

    .pricing-card:hover {
        transform: translateY(-8px);
        box-shadow: var(--tk-shadow-xl);
        border-color: var(--tk-color-primary);
    }

    .pricing-card.popular {
        background: var(--tk-color-primary-dark);
        color: var(--tk-color-white);
        border-color: #4A6EC7;
        transform: scale(1.05);
        box-shadow: var(--tk-shadow-2xl);
    }

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

        .pricing-card.popular .pricing-card-type,
        .pricing-card.popular .pricing-card-price,
        .pricing-card.popular .pricing-card-period,
        .pricing-card.popular .pricing-card-additional,
        .pricing-card.popular .pricing-card-guarantee,
        .pricing-card.popular .feature-item {
            color: var(--tk-color-white);
        }

        .pricing-card.popular .feature-icon {
            background: rgba(255, 255, 255, 0.2);
            color: var(--tk-color-white);
        }

.popular-badge {
    position: absolute;
    top: -12px;
    right: 30px;
    background: linear-gradient(135deg, #FF8C42 0%, #FF6B35 100%);
    color: var(--tk-color-white);
    padding: var(--tk-space-sm) var(--tk-space-xl);
    border-radius: 20px;
    font-weight: 700;
    font-size: var(--tk-font-xs);
    text-transform: uppercase;
    letter-spacing: 0.5px;
    box-shadow: 0 4px 12px rgba(255, 107, 53, 0.4);
}

.pricing-card-type {
    font-size: var(--tk-font-lg);
    font-weight: 600;
    color: var(--tk-color-text-primary);
    margin-bottom: var(--tk-space-sm);
}

.pricing-card-subtitle {
    font-size: var(--tk-font-xs);
    color: var(--tk-color-text-secondary);
    margin-bottom: var(--tk-space-3xl);
    opacity: 0.8;
}

.pricing-card.popular .pricing-card-subtitle {
    color: rgba(255, 255, 255, 0.9);
}

.pricing-card-price {
    font-size: clamp(2.5rem, 5vw, 3.5rem);
    font-weight: 700;
    color: var(--tk-color-text-primary);
    line-height: 1;
    margin-bottom: var(--tk-space-sm);
}

.pricing-card-period {
    font-size: var(--tk-font-sm);
    color: var(--tk-color-text-secondary);
    margin-bottom: var(--tk-space-xs);
}

.pricing-card-additional {
    font-size: var(--tk-font-xs);
    color: var(--tk-color-text-secondary);
    margin-bottom: var(--tk-space-2xl);
}

.pricing-card-guarantee {
    display: flex;
    align-items: center;
    gap: var(--tk-space-sm);
    font-size: var(--tk-font-xs);
    color: var(--tk-color-text-secondary);
    margin-bottom: var(--tk-space-3xl);
    padding-bottom: var(--tk-space-2xl);
    border-bottom: 1px solid var(--tk-color-border);
}

.pricing-card.popular .pricing-card-guarantee {
    border-bottom-color: rgba(255, 255, 255, 0.2);
}

.guarantee-icon {
    width: 20px;
    height: 20px;
    background: rgba(74, 144, 226, 0.1);
    border-radius: var(--tk-radius-round);
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}

.pricing-card.popular .guarantee-icon {
    background: rgba(255, 255, 255, 0.2);
}

.pricing-card-cta {
    width: 100%;
    padding: var(--tk-space-lg) var(--tk-space-2xl);
    border-radius: var(--tk-radius-md);
    font-weight: 600;
    font-size: var(--tk-font-sm);
    cursor: pointer;
    transition: var(--tk-transition-base);
    border: none;
    margin-bottom: var(--tk-space-3xl);
}

.pricing-card:not(.popular) .pricing-card-cta {
    background: var(--tk-color-text-primary);
    color: var(--tk-color-white);
}

    .pricing-card:not(.popular) .pricing-card-cta:hover {
        background: var(--tk-color-black);
        transform: translateY(-2px);
        box-shadow: var(--tk-shadow-lg);
    }

.pricing-card.popular .pricing-card-cta {
    background: var(--tk-color-white);
    color: #4A6EC7;
}

    .pricing-card.popular .pricing-card-cta:hover {
        background: rgba(255, 255, 255, 0.95);
        transform: translateY(-2px);
        box-shadow: 0 8px 20px rgba(0, 0, 0, 0.2);
    }

.pricing-card-features-title {
    font-size: var(--tk-font-sm);
    font-weight: 600;
    color: var(--tk-color-text-primary);
    margin-bottom: var(--tk-space-xl);
}

.pricing-card.popular .pricing-card-features-title {
    color: var(--tk-color-white);
}

.pricing-card-features {
    display: flex;
    flex-direction: column;
    gap: var(--tk-space-lg);
}

.feature-item {
    display: flex;
    align-items: flex-start;
    gap: var(--tk-space-md);
    font-size: var(--tk-font-sm);
    color: var(--tk-color-text-primary);
    line-height: var(--tk-line-height-normal);
}

.feature-icon {
    width: 20px;
    height: 20px;
    background: rgba(74, 144, 226, 0.1);
    border-radius: var(--tk-radius-round);
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
    margin-top: 2px;
}

    .feature-icon svg {
        width: 12px;
        height: 12px;
        stroke: var(--tk-color-primary);
        stroke-width: 3;
        fill: none;
    }

.pricing-card.popular .feature-icon svg {
    stroke: var(--tk-color-white);
}

.pricing-disclaimer {
    text-align: center;
    margin-top: var(--tk-space-5xl);
    padding-top: var(--tk-space-3xl);
    border-top: 1px solid var(--tk-color-border);
}

    .pricing-disclaimer p {
        font-size: var(--tk-font-xs);
        color: var(--tk-color-text-secondary);
        line-height: var(--tk-line-height-relaxed);
        max-width: 800px;
        margin: 0 auto var(--tk-space-lg);
    }

.pricing-disclaimer-link {
    display: inline-block;
    padding: var(--tk-space-lg) var(--tk-space-3xl);
    border: 2px solid var(--tk-color-border);
    background: var(--tk-color-white);
    border-radius: var(--tk-radius-lg);
    font-weight: 600;
    font-size: var(--tk-font-sm);
    cursor: pointer;
    transition: var(--tk-transition-base);
    color: var(--tk-color-text-primary);
    text-decoration: none;
}

    .pricing-disclaimer-link:hover {
        border-color: var(--tk-color-primary);
        color: var(--tk-color-primary);
        transform: translateY(-2px);
        box-shadow: var(--tk-shadow-sm);
    }

/* Circular Slider Section */
.circular-slider-section {
    position: relative;
    background: var(--tk-color-bg-white-semi);
    z-index: 1;
    overflow: hidden;
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
}

.circular-slider-container {
    position: relative;
    width: 100%;
    max-width: 1400px;
    height: 750px;
    margin: 0 auto;
    opacity: 0;
    transform: translateY(30px);
}

    .circular-slider-container.animate {
        animation: fadeInUp 1s ease-out forwards;
    }

.slider-center-content {
    position: absolute;
    top: 30%;
    left: 50%;
    transform: translate(-50%, -50%);
    text-align: center;
    z-index: 10;
    max-width: 500px;
}

.slider-tag {
    display: inline-block;
    padding: var(--tk-space-sm) var(--tk-space-xl);
    background: rgba(74, 144, 226, 0.1);
    color: var(--tk-color-primary);
    border-radius: 30px;
    font-weight: 600;
    font-size: var(--tk-font-xs);
    margin-bottom: var(--tk-space-lg);
    letter-spacing: var(--tk-letter-spacing-wide);
}

.slider-title {
    font-size: clamp(2.5rem, 5vw, 3.5rem);
    font-weight: 700;
    line-height: var(--tk-line-height-tight);
    margin-bottom: var(--tk-space-xl);
    color: var(--tk-color-text-primary);
    letter-spacing: var(--tk-letter-spacing-normal);
}

    .slider-title .highlight {
        color: var(--tk-color-primary);
        background: linear-gradient(135deg, var(--tk-color-primary) 0%, var(--tk-color-secondary-dark) 100%);
        -webkit-background-clip: text;
        -webkit-text-fill-color: transparent;
        background-clip: text;
    }

.slider-description {
    font-size: var(--tk-font-base);
    line-height: var(--tk-line-height-relaxed);
    color: var(--tk-color-text-secondary);
}

.slider-track {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
}

.slider-item {
    position: absolute;
    width: 280px;
    height: 180px;
    background: var(--tk-color-white);
    border-radius: var(--tk-radius-xl);
    box-shadow: var(--tk-shadow-lg);
    overflow: hidden;
    transition: all 0.3s ease;
    border: 3px solid var(--tk-color-white);
    will-change: transform, opacity;
    cursor: pointer;
}

    .slider-item:hover {
        border-color: var(--tk-color-primary);
        transform: translate(-50%, -50%) scale(1.05) !important;
        box-shadow: var(--tk-shadow-blue-lg);
    }

    .slider-item img {
        width: 100%;
        height: 100%;
        object-fit: cover;
        display: block;
    }

/* Affiliate Section */
.affiliate-section {
    position: relative;
    padding: var(--tk-padding-section);
    background: var(--tk-color-bg-white-semi);
    z-index: 1;
}

.affiliate-container {
    max-width: 1200px;
    margin: 0 auto;
    background: var(--tk-color-bg-card);
    border-radius: var(--tk-radius-md);
    padding: var(--tk-space-6xl);
    box-shadow: var(--tk-shadow-xl);
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--tk-space-6xl);
    align-items: center;
    opacity: 0;
    transform: translateY(30px);
}

    .affiliate-container.animate {
        animation: fadeInUp 1s ease-out forwards;
    }

.affiliate-content {
    display: flex;
    flex-direction: column;
    gap: var(--tk-space-xl);
}

.affiliate-tag {
    display: inline-block;
    padding: var(--tk-space-sm) var(--tk-space-xl);
    background: rgba(74, 144, 226, 0.1);
    color: var(--tk-color-primary);
    border-radius: 30px;
    font-weight: 600;
    font-size: var(--tk-font-xs);
    letter-spacing: var(--tk-letter-spacing-wide);
    width: fit-content;
}

.affiliate-title {
    font-size: clamp(2rem, 4vw, 2.5rem);
    font-weight: 700;
    line-height: var(--tk-line-height-tight);
    color: var(--tk-color-text-primary);
    letter-spacing: var(--tk-letter-spacing-normal);
}

    .affiliate-title .highlight {
        color: var(--tk-color-primary);
        background: linear-gradient(135deg, var(--tk-color-primary) 0%, var(--tk-color-secondary-dark) 100%);
        -webkit-background-clip: text;
        -webkit-text-fill-color: transparent;
        background-clip: text;
    }

.affiliate-description {
    font-size: var(--tk-font-base);
    line-height: var(--tk-line-height-relaxed);
    color: var(--tk-color-text-secondary);
}

.highlight-text {
    font-weight: 700;
    color: var(--tk-color-text-primary);
}

.btn-affiliate {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: var(--tk-space-lg) var(--tk-space-3xl);
    background: var(--tk-color-text-primary);
    color: var(--tk-color-white);
    border: none;
    border-radius: var(--tk-radius-lg);
    font-weight: 600;
    font-size: var(--tk-font-base);
    cursor: pointer;
    transition: var(--tk-transition-base);
    width: fit-content;
}

    .btn-affiliate:hover {
        background: var(--tk-color-black);
        transform: translateY(-2px);
        box-shadow: var(--tk-shadow-lg);
    }

.affiliate-visual {
    position: relative;
    height: 400px;
    display: flex;
    align-items: center;
    justify-content: center;
}

/* Social Media Logos - Random Orbits với Images */
.social-orbit {
    position: absolute;
    width: 50px;
    height: 50px;
    background: var(--tk-color-white);
    border-radius: var(--tk-radius-round);
    border: 3px solid var(--tk-color-white);
    box-shadow: var(--tk-shadow-md);
    display: flex;
    align-items: center;
    justify-content: center;
    transition: var(--tk-transition-base);
    overflow: hidden;
}

    .social-orbit:hover {
        transform: scale(1.15) !important;
        box-shadow: var(--tk-shadow-primary);
        z-index: 10;
    }

    .social-orbit img {
        width: 28px;
        height: 28px;
        object-fit: contain;
    }

.center-icon {
    width: 80px;
    height: 80px;
    background: linear-gradient(135deg, var(--tk-color-primary) 0%, var(--tk-color-primary-dark) 100%);
    border-radius: var(--tk-radius-xl);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--tk-color-white);
    box-shadow: var(--tk-shadow-primary-lg);
    z-index: 2;
    position: relative;
}

    .center-icon svg {
        stroke: var(--tk-color-white);
    }

/* Footer */
.footer {
    background: var(--tk-color-white);
    padding: var(--tk-space-6xl) 5% var(--tk-space-3xl);
    position: relative;
    z-index: 1;
    border-top: 1px solid var(--tk-color-border);
}

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

.footer-top {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr 1.5fr;
    gap: var(--tk-space-5xl);
    padding-bottom: var(--tk-space-5xl);
    border-bottom: 1px solid var(--tk-color-border);
    margin-bottom: var(--tk-space-3xl);
}

.footer-brand {
    display: flex;
    flex-direction: column;
    gap: var(--tk-space-xl);
}

.footer-logo {
    font-size: var(--tk-font-xl);
    font-weight: 700;
    font-family: 'Space Mono', monospace;
    color: var(--tk-color-text-primary);
    display: flex;
    align-items: center;
}

    .footer-logo svg {
        stroke: var(--tk-color-text-primary);
    }

.footer-description {
    font-size: var(--tk-font-sm);
    line-height: var(--tk-line-height-relaxed);
    color: var(--tk-color-text-secondary);
    max-width: 300px;
}

.footer-column {
    display: flex;
    flex-direction: column;
    gap: var(--tk-space-lg);
}

.footer-column-title {
    font-size: var(--tk-font-base);
    font-weight: 600;
    color: var(--tk-color-text-primary);
    margin-bottom: var(--tk-space-sm);
}

.footer-links {
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: var(--tk-space-md);
}

.footer-link {
    color: var(--tk-color-text-secondary);
    text-decoration: none;
    font-size: var(--tk-font-sm);
    transition: var(--tk-transition-base);
    display: inline-flex;
    align-items: center;
}

    .footer-link:hover {
        color: var(--tk-color-primary);
    }

    .footer-link svg {
        stroke: currentColor;
        opacity: 0.5;
    }

.footer-newsletter {
    max-width: 350px;
}

.footer-newsletter-text {
    font-size: var(--tk-font-xs);
    line-height: var(--tk-line-height-relaxed);
    color: var(--tk-color-text-secondary);
    margin-bottom: var(--tk-space-xl);
}

.newsletter-form {
    display: flex;
    gap: var(--tk-space-xs);
    background: var(--tk-color-bg-main);
    border-radius: var(--tk-radius-lg);
    padding: var(--tk-space-xs);
}

.newsletter-input {
    flex: 1;
    border: none;
    background: transparent;
    padding: var(--tk-space-md) var(--tk-space-lg);
    font-size: var(--tk-font-sm);
    font-family: 'DM Sans', sans-serif;
    color: var(--tk-color-text-primary);
    outline: none;
}

    .newsletter-input::placeholder {
        color: var(--tk-color-text-secondary);
        opacity: 0.6;
    }

.newsletter-submit {
    width: 48px;
    height: 48px;
    background: var(--tk-color-text-primary);
    border: none;
    border-radius: var(--tk-radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    transition: var(--tk-transition-base);
    flex-shrink: 0;
}

    .newsletter-submit svg {
        stroke: var(--tk-color-white);
    }

    .newsletter-submit:hover {
        background: var(--tk-color-black);
        transform: scale(1.05);
    }

.footer-bottom {
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: var(--tk-space-lg);
}

.footer-copyright {
    color: var(--tk-color-text-secondary);
    font-size: var(--tk-font-xs);
}

.footer-badges {
    display: flex;
    align-items: center;
    gap: var(--tk-space-lg);
}

.footer-badge {
    font-size: var(--tk-font-xs);
    color: var(--tk-color-text-secondary);
}

.footer-badge-link {
    width: 32px;
    height: 32px;
    border: 1px solid var(--tk-color-border);
    border-radius: var(--tk-radius-sm);
    display: flex;
    align-items: center;
    justify-content: center;
    transition: var(--tk-transition-base);
    text-decoration: none;
}

    .footer-badge-link svg {
        stroke: var(--tk-color-text-secondary);
    }

    .footer-badge-link:hover {
        border-color: var(--tk-color-primary);
        background: rgba(74, 144, 226, 0.05);
    }

        .footer-badge-link:hover svg {
            stroke: var(--tk-color-primary);
        }

/* Animations */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }

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

@keyframes fadeInLeft {
    from {
        opacity: 0;
        transform: translateX(-30px);
    }

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

@keyframes fadeInRight {
    from {
        opacity: 0;
        transform: translateX(30px);
    }

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

@keyframes float {

    0%, 100% {
        transform: translateY(0px);
    }

    50% {
        transform: translateY(-20px);
    }
}

@media (max-width: 1200px) {
    .phone-showcase-container {
        gap: var(--tk-space-4xl);
    }

    .circular-slider-container {
        height: 650px;
    }

    .slider-item {
        width: 240px;
        height: 150px;
    }

    .slider-center-content {
        top: 28%;
    }
}

@media (max-width: 968px) {

    .hero-content,
    .phone-showcase-container {
        grid-template-columns: 1fr;
        gap: var(--tk-space-4xl);
    }

    .carousel-grid {
        grid-template-columns: 1fr;
        grid-template-rows: auto;
    }

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

    .affiliate-container {
        grid-template-columns: 1fr;
        padding: var(--tk-space-4xl);
    }

    .affiliate-visual {
        height: 300px;
    }

    .footer-top {
        grid-template-columns: 1fr 1fr;
        gap: var(--tk-space-4xl);
    }

    .footer-brand,
    .footer-newsletter {
        grid-column: 1 / -1;
    }

    .hero-text,
    .showcase-left {
        text-align: center;
    }

    .hero-description,
    .showcase-description {
        margin: 0 auto var(--tk-space-3xl);
    }

    .hero-cta {
        justify-content: center;
    }

    .nav-buttons {
        display: none;
    }

    .footer-content {
        flex-direction: column;
        text-align: center;
    }

    .carousel-section {
        margin-left: 0;
        width: 100%;
    }

    .phone-mockup-wrapper {
        order: -1;
    }

    .circular-slider-container {
        height: 550px;
    }

    .slider-item {
        width: 200px;
        height: 130px;
    }

    .slider-center-content {
        max-width: 90%;
        top: 23%;
    }

    .pricing-tabs {
        flex-direction: column;
        max-width: 400px;
        margin-left: auto;
        margin-right: auto;
    }

    .pricing-tab {
        width: 100%;
    }
}

@media (max-width: 640px) {
    .hero-cta {
        flex-direction: column;
    }

    .btn-large {
        width: 100%;
    }

    .cta-buttons {
        flex-direction: column;
    }

    .btn {
        width: 100%;
    }

    .carousel-wrapper {
        padding: var(--tk-space-xs);
    }

    .left-content,
    .text-card {
        padding: var(--tk-space-2xl);
    }

    .circular-slider-container {
        height: 450px;
    }

    .slider-item {
        width: 160px;
        height: 100px;
    }

    .slider-title {
        font-size: 2rem;
    }

    .slider-description {
        font-size: 0.9rem;
    }

    .slider-center-content {
        top: 18%;
    }

    .pricing-card {
        padding: var(--tk-space-3xl) var(--tk-space-2xl);
    }

    .affiliate-container {
        padding: var(--tk-space-3xl) var(--tk-space-2xl);
    }

    .affiliate-visual {
        height: 250px;
    }

    .social-orbit {
        width: 40px;
        height: 40px;
    }

        .social-orbit img {
            width: 22px;
            height: 22px;
        }

    .center-icon {
        width: 60px;
        height: 60px;
    }

        .center-icon svg {
            width: 30px;
            height: 30px;
        }

    .footer-top {
        grid-template-columns: 1fr;
        gap: var(--tk-space-3xl);
    }

    .footer-bottom {
        flex-direction: column;
        text-align: center;
    }
}

/* Loading animation */
.loading {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: var(--tk-color-bg-main);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 9999;
    transition: opacity 0.5s ease;
}

    .loading.hidden {
        opacity: 0;
        pointer-events: none;
    }

.loader {
    width: 50px;
    height: 50px;
    border: 4px solid rgba(74, 144, 226, 0.2);
    border-top-color: var(--tk-color-primary);
    border-radius: var(--tk-radius-round);
    animation: spin 1s linear infinite;
}

.center-logo{
    background:none;
}
@keyframes spin {
    to {
        transform: rotate(360deg);
    }
}