/* ===================================
   Walking Pad - Design System & Styles
   =================================== */

/* --- Google Font Import --- */
@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700;800;900&display=swap');

/* --- CSS Custom Properties (Design Tokens) --- */
:root {
    /* Primary Colors */
    --color-primary: #0D9488;
    --color-primary-light: #14B8A6;
    --color-primary-dark: #0F766E;
    --color-primary-50: #F0FDFA;
    --color-primary-100: #CCFBF1;
    --color-primary-200: #99F6E4;
    --color-primary-300: #5EEAD4;
    --color-primary-400: #2DD4BF;
    --color-primary-500: #14B8A6;
    --color-primary-600: #0D9488;
    --color-primary-700: #0F766E;
    --color-primary-800: #115E59;
    --color-primary-900: #134E4A;

    /* Accent Colors */
    --color-accent: #F97316;
    --color-accent-light: #FB923C;
    --color-accent-dark: #EA580C;

    /* Neutral Colors */
    --color-dark: #0F172A;
    --color-dark-soft: #1E293B;
    --color-gray-700: #334155;
    --color-gray-600: #475569;
    --color-gray-500: #64748B;
    --color-gray-400: #94A3B8;
    --color-gray-300: #CBD5E1;
    --color-gray-200: #E2E8F0;
    --color-gray-100: #F1F5F9;
    --color-white: #FFFFFF;
    --color-bg: #F8FAFC;
    --color-bg-soft: #F0FDFA;

    /* Gradients */
    --gradient-primary: linear-gradient(135deg, #0D9488 0%, #14B8A6 50%, #2DD4BF 100%);
    --gradient-hero: linear-gradient(135deg, #0F172A 0%, #134E4A 40%, #0D9488 100%);
    --gradient-subtle: linear-gradient(135deg, #F0FDFA 0%, #CCFBF1 100%);
    --gradient-accent: linear-gradient(135deg, #F97316 0%, #FB923C 100%);
    --gradient-glass: linear-gradient(135deg, rgba(255, 255, 255, 0.1) 0%, rgba(255, 255, 255, 0.05) 100%);

    /* Typography */
    --font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    --font-size-xs: 0.75rem;
    --font-size-sm: 0.875rem;
    --font-size-base: 1rem;
    --font-size-lg: 1.125rem;
    --font-size-xl: 1.25rem;
    --font-size-2xl: 1.5rem;
    --font-size-3xl: 1.875rem;
    --font-size-4xl: 2.25rem;
    --font-size-5xl: 3rem;
    --font-size-6xl: 3.75rem;

    /* Spacing */
    --space-1: 0.25rem;
    --space-2: 0.5rem;
    --space-3: 0.75rem;
    --space-4: 1rem;
    --space-5: 1.25rem;
    --space-6: 1.5rem;
    --space-8: 2rem;
    --space-10: 2.5rem;
    --space-12: 3rem;
    --space-16: 4rem;
    --space-20: 5rem;
    --space-24: 6rem;

    /* Borders & Radius */
    --radius-sm: 0.375rem;
    --radius-md: 0.5rem;
    --radius-lg: 0.75rem;
    --radius-xl: 1rem;
    --radius-2xl: 1.5rem;
    --radius-3xl: 2rem;
    --radius-full: 9999px;

    /* Shadows */
    --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -2px rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -4px rgba(0, 0, 0, 0.1);
    --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 8px 10px -6px rgba(0, 0, 0, 0.1);
    --shadow-2xl: 0 25px 50px -12px rgba(0, 0, 0, 0.25);
    --shadow-glow: 0 0 40px rgba(13, 148, 136, 0.15);
    --shadow-glow-accent: 0 0 40px rgba(249, 115, 22, 0.2);

    /* Glass Effect */
    --glass-bg: rgba(255, 255, 255, 0.7);
    --glass-border: rgba(255, 255, 255, 0.3);
    --glass-blur: blur(20px);

    /* Transitions Disabled */
    --transition-fast: 0ms;
    --transition-base: 0ms;
    --transition-slow: 0ms;
    --transition-spring: 0ms;
}

/* --- Reset & Base --- */
*,
*::before,
*::after {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    scroll-behavior: auto;
    /* Remove smooth scrolling */
    font-size: 16px;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    overflow-x: hidden;
    width: 100%;
}

body {
    font-family: var(--font-family);
    font-size: var(--font-size-base);
    line-height: 1.7;
    color: var(--color-gray-700);
    background-color: var(--color-bg);
    overflow-x: hidden;
    width: 100%;
}

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

a {
    text-decoration: none;
    color: inherit;
    transition: color var(--transition-fast);
}

ul,
ol {
    list-style: none;
}

/* --- Container --- */
.container {
    width: 100%;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--space-6);
}

/* --- Utility Classes --- */
.section-label {
    display: inline-flex;
    align-items: center;
    gap: var(--space-2);
    font-size: var(--font-size-sm);
    font-weight: 600;
    color: var(--color-primary);
    text-transform: uppercase;
    letter-spacing: 0.1em;
    margin-bottom: var(--space-4);
}

.section-label::before {
    content: '';
    display: inline-block;
    width: 24px;
    height: 2px;
    background: var(--gradient-primary);
    border-radius: var(--radius-full);
}

.section-title {
    font-size: var(--font-size-4xl);
    font-weight: 800;
    color: var(--color-dark);
    line-height: 1.2;
    margin-bottom: var(--space-4);
}

.section-subtitle {
    font-size: var(--font-size-lg);
    color: var(--color-gray-500);
    max-width: 640px;
    line-height: 1.7;
}

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

.mx-auto {
    margin-left: auto;
    margin-right: auto;
}

/* --- Buttons --- */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: var(--space-2);
    padding: var(--space-3) var(--space-8);
    font-family: var(--font-family);
    font-size: var(--font-size-base);
    font-weight: 600;
    border: none;
    border-radius: var(--radius-full);
    cursor: pointer;
    transition: all var(--transition-base);
    position: relative;
    overflow: hidden;
}

.btn::after {
    content: '';
    position: absolute;
    inset: 0;
    background: linear-gradient(135deg, rgba(255, 255, 255, 0.2) 0%, rgba(255, 255, 255, 0) 100%);
    opacity: 0;
    transition: opacity var(--transition-base);
}

.btn:hover::after {
    opacity: 1;
}

.btn-primary {
    background: var(--gradient-primary);
    color: var(--color-white);
    box-shadow: 0 4px 15px rgba(13, 148, 136, 0.35);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 25px rgba(13, 148, 136, 0.45);
}

.btn-accent {
    background: var(--gradient-accent);
    color: var(--color-white);
    box-shadow: 0 4px 15px rgba(249, 115, 22, 0.35);
}

.btn-accent:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 25px rgba(249, 115, 22, 0.45);
}

.btn-outline {
    background: transparent;
    color: var(--color-primary);
    border: 2px solid var(--color-primary-300);
}

.btn-outline:hover {
    background: var(--color-primary-50);
    border-color: var(--color-primary);
    transform: translateY(-2px);
}

.btn-lg {
    padding: var(--space-4) var(--space-10);
    font-size: var(--font-size-lg);
}

/* --- Header / Navigation --- */
.header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    padding: var(--space-4) 0;
    transition: all var(--transition-base);
    background: var(--glass-bg);
    /* Glass background by default for visibility */
    backdrop-filter: var(--glass-blur);
    -webkit-backdrop-filter: var(--glass-blur);
    border-bottom: 1px solid var(--glass-border);
    box-shadow: var(--shadow-sm);
}

.header.scrolled {
    background: var(--glass-bg);
    backdrop-filter: var(--glass-blur);
    -webkit-backdrop-filter: var(--glass-blur);
    border-bottom: 1px solid var(--glass-border);
    box-shadow: var(--shadow-md);
    padding: var(--space-3) 0;
}

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

.logo {
    font-size: var(--font-size-xl);
    font-weight: 800;
    color: var(--color-dark);
    /* Dark color by default for visibility */
    letter-spacing: -0.02em;
    transition: color var(--transition-base);
}

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

.header.scrolled .logo {
    color: var(--color-dark);
}

.nav-menu {
    display: flex;
    align-items: center;
    gap: var(--space-8);
}

.nav-link {
    font-size: var(--font-size-sm);
    font-weight: 500;
    color: var(--color-gray-600);
    /* Darker gray by default */
    position: relative;
    padding: var(--space-2) 0;
    transition: color var(--transition-fast);
}

.nav-link::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--gradient-primary);
    border-radius: var(--radius-full);
    transition: width var(--transition-base);
}

.nav-link:hover,
.nav-link.active {
    color: var(--color-white);
}

.nav-link:hover::after,
.nav-link.active::after {
    width: 100%;
}

.header.scrolled .nav-link {
    color: var(--color-gray-600);
}

.header.scrolled .nav-link:hover,
.header.scrolled .nav-link.active {
    color: var(--color-primary);
}

/* Mobile Menu Toggle */
.menu-toggle {
    display: none;
    flex-direction: column;
    gap: 5px;
    background: none;
    border: none;
    cursor: pointer;
    padding: var(--space-2);
    z-index: 1001;
}

.menu-toggle span {
    display: block;
    width: 24px;
    height: 2px;
    background: var(--color-dark);
    /* Dark by default */
    border-radius: var(--radius-full);
    transition: all var(--transition-base);
}

.header.scrolled .menu-toggle span {
    background: var(--color-dark);
}

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

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

.menu-toggle.active span:nth-child(3) {
    transform: rotate(-45deg) translate(5px, -5px);
}

/* --- Hero Section --- */
.hero {
    position: relative;
    min-height: 100vh;
    display: flex;
    align-items: center;
    background: var(--gradient-hero);
    overflow: hidden;
    padding-top: 80px;
    /* Space for the fixed header */
    padding-bottom: 80px;
    /* Bottom spacing */
}

.hero::before {
    content: '';
    position: absolute;
    top: -50%;
    right: -20%;
    width: 800px;
    height: 800px;
    background: radial-gradient(circle, rgba(20, 184, 166, 0.15) 0%, transparent 70%);
    border-radius: 50%;
    animation: pulse-glow 8s ease-in-out infinite;
}

.hero::after {
    content: '';
    position: absolute;
    bottom: -30%;
    left: -10%;
    width: 600px;
    height: 600px;
    background: radial-gradient(circle, rgba(45, 212, 191, 0.1) 0%, transparent 70%);
    border-radius: 50%;
    animation: none;
}

@keyframes pulse-glow {

    0%,
    100% {
        transform: scale(1);
        opacity: 1;
    }
}

.hero .container {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--space-16);
    align-items: center;
    position: relative;
    z-index: 1;
}

.hero-content {
    animation: none;
}

.hero-badge {
    display: inline-flex;
    align-items: center;
    gap: var(--space-2);
    background: rgba(255, 255, 255, 0.1);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, 0.15);
    border-radius: var(--radius-full);
    padding: var(--space-2) var(--space-4);
    margin-bottom: var(--space-6);
    font-size: var(--font-size-sm);
    font-weight: 500;
    color: var(--color-primary-300);
}

.hero-badge .dot {
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background: var(--color-primary-400);
    animation: none;
}

@keyframes blink {

    0%,
    100% {
        opacity: 1;
    }
}

.hero h1 {
    font-size: var(--font-size-6xl);
    font-weight: 900;
    color: var(--color-white);
    line-height: 1.1;
    margin-bottom: var(--space-6);
    letter-spacing: -0.03em;
}

.hero h1 .highlight {
    background: linear-gradient(135deg, #2DD4BF 0%, #5EEAD4 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero-description {
    font-size: var(--font-size-lg);
    color: rgba(255, 255, 255, 0.7);
    line-height: 1.8;
    margin-bottom: var(--space-8);
    max-width: 520px;
}

.hero-buttons {
    display: flex;
    gap: var(--space-4);
    flex-wrap: wrap;
}

.hero-stats {
    display: flex;
    gap: var(--space-8);
    margin-top: var(--space-10);
    padding-top: var(--space-8);
    border-top: 1px solid rgba(255, 255, 255, 0.1);
}

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

.hero-stat .stat-number {
    font-size: var(--font-size-3xl);
    font-weight: 800;
    color: var(--color-primary-300);
    line-height: 1.2;
}

.hero-stat .stat-label {
    font-size: var(--font-size-sm);
    color: rgba(255, 255, 255, 0.5);
    margin-top: var(--space-1);
}

.hero-image {
    position: relative;
    /* animation: fadeInRight 1s ease-out 0.3s both; */
}

.hero-image img {
    border-radius: var(--radius-2xl);
    box-shadow: var(--shadow-2xl);
    width: 100%;
}

.hero-image::before {
    content: '';
    position: absolute;
    inset: -4px;
    background: var(--gradient-primary);
    border-radius: calc(var(--radius-2xl) + 4px);
    opacity: 0.3;
    z-index: -1;
}

/* Floating Badge on Hero Image */
.floating-badge {
    position: absolute;
    background: var(--glass-bg);
    backdrop-filter: var(--glass-blur);
    -webkit-backdrop-filter: var(--glass-blur);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius-xl);
    padding: var(--space-3) var(--space-4);
    display: flex;
    align-items: center;
    gap: var(--space-3);
    animation: none;
    box-shadow: var(--shadow-lg);
}

.floating-badge.top-right {
    top: -10px;
    right: -10px;
}

.floating-badge.bottom-left {
    bottom: 30px;
    left: -20px;
}

.floating-badge .badge-icon {
    width: 40px;
    height: 40px;
    border-radius: var(--radius-lg);
    background: var(--gradient-primary);
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-size: var(--font-size-xl);
}

.floating-badge .badge-text {
    font-size: var(--font-size-xs);
    color: var(--color-gray-500);
    line-height: 1.3;
}

.floating-badge .badge-text strong {
    display: block;
    font-size: var(--font-size-sm);
    color: var(--color-dark);
}

@keyframes float {

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

/* --- Section Common --- */
.section {
    padding: var(--space-24) 0;
}

.section-header {
    margin-bottom: var(--space-16);
}

/* --- What Is Section --- */
.what-is-section {
    background: var(--color-white);
}

.what-is-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--space-16);
    align-items: center;
}

.what-is-image {
    position: relative;
    border-radius: var(--radius-2xl);
    overflow: hidden;
}

.what-is-image img {
    border-radius: var(--radius-2xl);
    transition: transform var(--transition-slow);
}

.what-is-image:hover img {
    transform: scale(1.03);
}

.what-is-content h2 {
    font-size: var(--font-size-4xl);
    font-weight: 800;
    color: var(--color-dark);
    line-height: 1.2;
    margin-bottom: var(--space-6);
}

.what-is-content p {
    font-size: var(--font-size-lg);
    color: var(--color-gray-600);
    line-height: 1.8;
    margin-bottom: var(--space-6);
}

.feature-list {
    display: flex;
    flex-direction: column;
    gap: var(--space-4);
    margin-top: var(--space-6);
}

.feature-list-item {
    display: flex;
    align-items: flex-start;
    gap: var(--space-3);
}

.feature-list-item .check-icon {
    width: 24px;
    height: 24px;
    min-width: 24px;
    border-radius: 50%;
    background: var(--color-primary-100);
    color: var(--color-primary);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: var(--font-size-sm);
    margin-top: 2px;
}

.feature-list-item span {
    font-size: var(--font-size-base);
    color: var(--color-gray-700);
    font-weight: 500;
}

/* --- Benefits Section --- */
.benefits-section {
    background: var(--gradient-subtle);
    position: relative;
    overflow: hidden;
}

.benefits-section::before {
    content: '';
    position: absolute;
    top: 0;
    right: 0;
    width: 400px;
    height: 400px;
    background: radial-gradient(circle, rgba(13, 148, 136, 0.08) 0%, transparent 70%);
    border-radius: 50%;
}

.benefits-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--space-6);
}

.benefit-card {
    background: var(--color-white);
    border-radius: var(--radius-2xl);
    padding: var(--space-8);
    transition: all var(--transition-base);
    border: 1px solid var(--color-gray-100);
    position: relative;
    overflow: hidden;
}

.benefit-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: var(--gradient-primary);
    transform: scaleX(0);
    transform-origin: left;
    transition: transform var(--transition-base);
}

.benefit-card:hover {
    transform: translateY(-6px);
    box-shadow: var(--shadow-xl);
    border-color: var(--color-primary-200);
}

.benefit-card:hover::before {
    transform: scaleX(1);
}

.benefit-icon {
    width: 56px;
    height: 56px;
    border-radius: var(--radius-xl);
    background: var(--gradient-subtle);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: var(--font-size-2xl);
    margin-bottom: var(--space-5);
    transition: background var(--transition-base);
}

.benefit-card:hover .benefit-icon {
    background: var(--gradient-primary);
}

.benefit-card:hover .benefit-icon svg {
    filter: brightness(10);
}

.benefit-card h3 {
    font-size: var(--font-size-xl);
    font-weight: 700;
    color: var(--color-dark);
    margin-bottom: var(--space-3);
}

.benefit-card p {
    font-size: var(--font-size-base);
    color: var(--color-gray-500);
    line-height: 1.7;
}

/* --- Features / Buying Guide Section --- */
.features-section {
    background: var(--color-white);
}

.features-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--space-16);
    align-items: center;
}

.features-grid.reverse {
    direction: rtl;
}

.features-grid.reverse>* {
    direction: ltr;
}

.features-image {
    border-radius: var(--radius-2xl);
    overflow: hidden;
    position: relative;
}

.features-image img {
    border-radius: var(--radius-2xl);
    width: 100%;
    transition: transform var(--transition-slow);
}

.features-image:hover img {
    transform: scale(1.03);
}

.feature-detail {
    display: flex;
    gap: var(--space-4);
    padding: var(--space-5);
    border-radius: var(--radius-xl);
    transition: all var(--transition-base);
    border: 1px solid transparent;
}

.feature-detail:hover {
    background: var(--color-primary-50);
    border-color: var(--color-primary-100);
}

.feature-detail .detail-number {
    width: 40px;
    height: 40px;
    min-width: 40px;
    border-radius: var(--radius-lg);
    background: var(--gradient-primary);
    color: var(--color-white);
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 700;
    font-size: var(--font-size-sm);
}

.feature-detail h4 {
    font-size: var(--font-size-lg);
    font-weight: 700;
    color: var(--color-dark);
    margin-bottom: var(--space-2);
}

.feature-detail p {
    font-size: var(--font-size-base);
    color: var(--color-gray-500);
    line-height: 1.6;
}

/* --- Products Section --- */
.products-section {
    background: var(--gradient-subtle);
    position: relative;
}

.products-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--space-6);
}

.product-card {
    background: var(--color-white);
    border-radius: var(--radius-2xl);
    overflow: hidden;
    transition: all var(--transition-base);
    border: 1px solid var(--color-gray-100);
    position: relative;
}

.product-card:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-2xl);
}

.product-badge {
    position: absolute;
    top: var(--space-4);
    left: var(--space-4);
    background: var(--gradient-accent);
    color: var(--color-white);
    font-size: var(--font-size-xs);
    font-weight: 700;
    padding: var(--space-1) var(--space-3);
    border-radius: var(--radius-full);
    text-transform: uppercase;
    letter-spacing: 0.05em;
    z-index: 2;
}

.product-image {
    position: relative;
    height: 240px;
    background: var(--color-gray-100);
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: hidden;
}

.product-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform var(--transition-slow);
}

.product-card:hover .product-image img {
    transform: scale(1.08);
}

.product-content {
    padding: var(--space-6);
}

.product-content h3 {
    font-size: var(--font-size-xl);
    font-weight: 700;
    color: var(--color-dark);
    margin-bottom: var(--space-2);
}

.product-rating {
    display: flex;
    align-items: center;
    gap: var(--space-2);
    margin-bottom: var(--space-3);
}

.stars {
    color: #F59E0B;
    font-size: var(--font-size-sm);
    letter-spacing: 2px;
}

.rating-text {
    font-size: var(--font-size-sm);
    color: var(--color-gray-400);
}

.product-features {
    display: flex;
    flex-wrap: wrap;
    gap: var(--space-2);
    margin-bottom: var(--space-4);
}

.product-feature-tag {
    font-size: var(--font-size-xs);
    background: var(--color-primary-50);
    color: var(--color-primary-700);
    padding: var(--space-1) var(--space-3);
    border-radius: var(--radius-full);
    font-weight: 500;
}

.product-price {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-top: var(--space-4);
    padding-top: var(--space-4);
    border-top: 1px solid var(--color-gray-100);
}

.price {
    font-size: var(--font-size-2xl);
    font-weight: 800;
    color: var(--color-dark);
}

.price .original {
    font-size: var(--font-size-sm);
    color: var(--color-gray-400);
    text-decoration: line-through;
    font-weight: 400;
    margin-left: var(--space-2);
}

.btn-buy {
    background: var(--gradient-accent);
    color: var(--color-white);
    padding: var(--space-3) var(--space-5);
    border-radius: var(--radius-full);
    font-size: var(--font-size-sm);
    font-weight: 600;
    border: none;
    cursor: pointer;
    display: inline-flex;
    align-items: center;
    gap: var(--space-2);
    transition: all var(--transition-base);
    font-family: var(--font-family);
}

.btn-buy:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-glow-accent);
}

/* --- FAQ Section --- */
.faq-section {
    background: var(--color-white);
}

.faq-list {
    max-width: 800px;
    margin: 0 auto;
    display: flex;
    flex-direction: column;
    gap: var(--space-4);
}

.faq-item {
    border: 1px solid var(--color-gray-200);
    border-radius: var(--radius-xl);
    overflow: hidden;
    transition: all var(--transition-base);
}

.faq-item:hover {
    border-color: var(--color-primary-200);
}

.faq-item.active {
    border-color: var(--color-primary-300);
    box-shadow: var(--shadow-glow);
}

.faq-question {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: var(--space-5) var(--space-6);
    cursor: pointer;
    background: transparent;
    border: none;
    width: 100%;
    text-align: left;
    font-family: var(--font-family);
    font-size: var(--font-size-lg);
    font-weight: 600;
    color: var(--color-dark);
    transition: color var(--transition-fast);
}

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

.faq-icon {
    width: 32px;
    height: 32px;
    min-width: 32px;
    border-radius: 50%;
    background: var(--color-primary-50);
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all var(--transition-base);
}

.faq-item.active .faq-icon {
    background: var(--gradient-primary);
    color: white;
    transform: rotate(180deg);
}

.faq-icon svg {
    width: 16px;
    height: 16px;
    color: var(--color-primary);
}

.faq-item.active .faq-icon svg {
    color: white;
}

.faq-answer {
    max-height: 0;
    overflow: hidden;
    transition: max-height var(--transition-base), padding var(--transition-base);
}

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

.faq-answer-inner {
    padding: 0 var(--space-6) var(--space-6);
    font-size: var(--font-size-base);
    color: var(--color-gray-600);
    line-height: 1.8;
}

/* --- CTA Banner --- */
.cta-banner {
    background: var(--gradient-hero);
    padding: var(--space-20) 0;
    position: relative;
    overflow: hidden;
}

.cta-banner::before {
    content: '';
    position: absolute;
    top: -50%;
    left: -20%;
    width: 600px;
    height: 600px;
    background: radial-gradient(circle, rgba(20, 184, 166, 0.12) 0%, transparent 70%);
    border-radius: 50%;
}

.cta-banner .container {
    position: relative;
    z-index: 1;
    text-align: center;
}

.cta-banner h2 {
    font-size: var(--font-size-4xl);
    font-weight: 800;
    color: var(--color-white);
    margin-bottom: var(--space-4);
}

.cta-banner p {
    font-size: var(--font-size-lg);
    color: rgba(255, 255, 255, 0.7);
    max-width: 560px;
    margin: 0 auto var(--space-8);
    line-height: 1.7;
}

/* --- Footer --- */
.footer {
    background: var(--color-dark);
    color: var(--color-gray-400);
    padding: var(--space-16) 0 0;
}

.footer-grid {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr 1fr;
    gap: var(--space-10);
    padding-bottom: var(--space-12);
    border-bottom: 1px solid rgba(255, 255, 255, 0.08);
}

.footer-brand .logo {
    margin-bottom: var(--space-4);
    display: inline-block;
    color: var(--color-white);
}

.footer-brand p {
    font-size: var(--font-size-sm);
    color: var(--color-gray-500);
    line-height: 1.8;
    max-width: 320px;
}

.footer-column h4 {
    font-size: var(--font-size-sm);
    font-weight: 700;
    color: var(--color-white);
    text-transform: uppercase;
    letter-spacing: 0.1em;
    margin-bottom: var(--space-5);
}

.footer-links {
    display: flex;
    flex-direction: column;
    gap: var(--space-3);
}

.footer-link {
    font-size: var(--font-size-sm);
    color: var(--color-gray-500);
    transition: all var(--transition-fast);
}

.footer-link:hover {
    color: var(--color-primary-400);
    padding-left: var(--space-2);
}

.footer-bottom {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: var(--space-6) 0;
    flex-wrap: wrap;
    gap: var(--space-4);
}

.footer-bottom p {
    font-size: var(--font-size-sm);
    color: var(--color-gray-600);
}

.footer-bottom-links {
    display: flex;
    gap: var(--space-6);
}

.footer-bottom-links a {
    font-size: var(--font-size-sm);
    color: var(--color-gray-600);
    transition: color var(--transition-fast);
}

.footer-bottom-links a:hover {
    color: var(--color-primary-400);
}

.affiliate-disclosure {
    padding: var(--space-4) 0;
    border-top: 1px solid rgba(255, 255, 255, 0.05);
    text-align: center;
}

.affiliate-disclosure p {
    font-size: var(--font-size-xs);
    color: var(--color-gray-600);
    line-height: 1.6;
}

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

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

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

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

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

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

.animate-on-scroll {
    opacity: 1;
    transform: translateY(0);
    transition: none !important;
}

.animate-on-scroll.animated {
    opacity: 1;
    transform: translateY(0);
}

.animate-on-scroll.delay-1 {
    transition-delay: 0.1s;
}

.animate-on-scroll.delay-2 {
    transition-delay: 0.2s;
}

.animate-on-scroll.delay-3 {
    transition-delay: 0.3s;
}

.animate-on-scroll.delay-4 {
    transition-delay: 0.4s;
}

.animate-on-scroll.delay-5 {
    transition-delay: 0.5s;
}

.animate-on-scroll.delay-6 {
    transition-delay: 0.6s;
}

/* --- Scroll to Top Button --- */
.scroll-top {
    position: fixed;
    bottom: var(--space-6);
    right: var(--space-6);
    width: 48px;
    height: 48px;
    border-radius: 50%;
    background: var(--gradient-primary);
    color: var(--color-white);
    border: none;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: var(--shadow-lg);
    opacity: 0;
    visibility: hidden;
    transform: translateY(20px);
    transition: all var(--transition-base);
    z-index: 999;
}

.scroll-top.visible {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

.scroll-top:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-glow);
}

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

    .hero h1 {
        font-size: var(--font-size-5xl);
    }

    .hero-description {
        margin-left: auto;
        margin-right: auto;
    }

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

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

    .hero-image {
        max-width: 500px;
        margin: 0 auto;
    }

    .what-is-grid,
    .features-grid {
        grid-template-columns: 1fr;
        gap: var(--space-10);
    }

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

    .footer-grid {
        grid-template-columns: 1fr 1fr;
        gap: var(--space-8);
    }

    .section-title {
        font-size: var(--font-size-3xl);
    }
}

@media (max-width: 768px) {
    :root {
        --space-24: 4rem;
        --space-16: 3rem;
    }

    /* Mobile Menu */
    .menu-toggle {
        display: flex;
    }

    .nav-menu {
        position: absolute;
        top: 100%;
        left: 0;
        right: 0;
        width: 100%;
        height: auto;
        max-height: 0;
        overflow: hidden;
        background: var(--color-dark);
        flex-direction: column;
        justify-content: flex-start;
        align-items: center;
        gap: var(--space-4);
        padding: 0;
        transition: max-height 0.3s ease-in-out, padding 0.3s ease-in-out;
        z-index: 1000;
        box-shadow: var(--shadow-md);
    }

    .nav-menu.open {
        max-height: 400px;
        padding: var(--space-6) 0;
    }

    .nav-link {
        color: rgba(255, 255, 255, 0.85);
        font-size: var(--font-size-lg);
    }

    .nav-link:hover,
    .nav-link.active {
        color: var(--color-primary-300);
    }

    .hero h1 {
        font-size: var(--font-size-4xl);
    }

    .hero-stats {
        flex-direction: column;
        gap: var(--space-4);
        align-items: center;
    }

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

    .benefits-grid,
    .products-grid {
        grid-template-columns: 1fr;
    }

    .section-title {
        font-size: var(--font-size-2xl);
    }

    .footer-grid {
        grid-template-columns: 1fr;
        gap: var(--space-8);
    }

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

    .floating-badge {
        display: none;
    }

    .cta-banner h2 {
        font-size: var(--font-size-3xl);
    }
}

@media (max-width: 480px) {
    html {
        font-size: 14px;
    }

    .hero h1 {
        font-size: var(--font-size-3xl);
    }

    .hero-buttons {
        flex-direction: column;
        align-items: center;
    }

    .btn-lg {
        width: 100%;
    }

    .product-content {
        padding: var(--space-4);
    }
}