/* --- Variables & Reset --- */
:root {
    --color-primary: #00AEEF;
    --color-primary-dark: #008CC1;
    --color-text-main: #0B1C33;
    --color-text-light: #555E6B;
    --color-bg-body: #FFFFFF;
    --color-bg-light: #F8F9FA;

    --font-family: 'Inter', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;

    --spacing-xs: 0.5rem;
    --spacing-sm: 1rem;
    --spacing-md: 2rem;
    --spacing-lg: 4rem;
    --spacing-xl: 8rem;
    /* Increased for more whitespace */

    --radius-sm: 4px;
    --radius-md: 12px;
    --radius-lg: 32px;
    /* Increased radius */

    --shadow-card: 0 20px 60px rgba(0, 0, 0, 0.08);
    /* Softer, deeper shadow */
    --shadow-nav: 0 2px 20px rgba(0, 0, 0, 0.03);

    --container-max: 1320px;
    /* Wider container */
    --nav-height: 90px;
}

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

html {
    scroll-behavior: smooth;
    font-size: 16px;
}

body {
    font-family: var(--font-family);
    color: var(--color-text-main);
    line-height: 1.6;
    background-color: #fff;
    -webkit-font-smoothing: antialiased;
}

img,
svg {
    max-width: 100%;
    display: block;
}

a {
    text-decoration: none;
    color: inherit;
    transition: all 0.2s;
}

ul {
    list-style: none;
}

/* --- Typography --- */
h1,
h2,
h3,
h4 {
    line-height: 1.05;
    font-weight: 700;
    color: var(--color-text-main);
    letter-spacing: -0.02em;
    /* Tighter tracking for headings */
}

/* --- Layout --- */
.container {
    width: 100%;
    max-width: var(--container-max);
    margin: 0 auto;
    padding: 0 2rem;
}

.section {
    padding: var(--spacing-xl) 0;
}

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

.bg-white {
    background-color: #ffffff;
}

/* --- Components --- */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 1rem 2.5rem;
    font-weight: 700;
    font-size: 0.85rem;
    /* Smaller, bolder text */
    text-transform: uppercase;
    letter-spacing: 1px;
    border-radius: 4px;
    /* Square buttons as per US site */
    transition: all 0.3s ease;
    cursor: pointer;
    border: none;
}

.btn-primary {
    background-color: var(--color-primary);
    color: white;
    /* No shadow on idle, maybe subtle hover */
}

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

.btn-secondary {
    background-color: transparent;
    color: var(--color-primary);
    border: 2px solid transparent;
    /* Or maybe thin border */
}

.btn-secondary:hover {
    background-color: #f0faff;
}

/* Feature Check List */
.check-list {
    margin: 1.5rem 0;
}

.check-list li {
    display: flex;
    align-items: center;
    gap: 1rem;
    margin-bottom: 0.8rem;
    color: var(--color-text-light);
    font-weight: 500;
}

.check-list li::before {
    content: "✔";
    /* Use a simpler check or SVG */
    display: flex;
    align-items: center;
    justify-content: center;
    width: 22px;
    height: 22px;
    background-color: #00D06C;
    /* Vivid Green */
    color: white;
    border-radius: 50%;
    font-size: 11px;
    font-weight: 900;
    flex-shrink: 0;
}

/* --- Header --- */
.site-header {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: var(--nav-height);
    background-color: rgba(255, 255, 255, 0.98);
    z-index: 1000;
    display: flex;
    align-items: center;
    border-bottom: 1px solid transparent;
    transition: all 0.3s;
}

.site-header.scrolled {
    box-shadow: var(--shadow-nav);
    height: 80px;
    /* Shrink slightly */
}

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

.logo img {
    height: 60px;
    /* Big Logo as requested */
    width: auto;
}

.main-nav ul {
    display: flex;
    gap: 2.5rem;
    align-items: center;
}

.nav-link {
    font-size: 0.8rem;
    font-weight: 700;
    text-transform: uppercase;
    color: #444;
    letter-spacing: 0.5px;
}

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

.nav-link.highlight {
    color: #5B4DFF;
}

.lang-toggle {
    font-size: 0.8rem;
    font-weight: 800;
    margin-left: 1rem;
    cursor: pointer;
    border: 2px solid #eee;
    padding: 4px 10px;
    border-radius: 6px;
    transition: 0.2s;
}

.lang-toggle:hover {
    border-color: var(--color-primary);
    color: var(--color-primary);
}

/* --- Hero Section --- */
#hero {
    padding-top: var(--nav-height);
    min-height: 100vh;
    display: flex;
    align-items: center;
    overflow: visible;
    padding-bottom: 4rem;
}

.hero-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    align-items: center;
    gap: 2rem;
}

.hero-content h1 {
    font-size: 4.5rem;
    /* Massive Headings */
    margin-bottom: 2rem;
    color: var(--color-text-main);
}

.hero-content h1 .highlight {
    color: var(--color-primary);
}

.hero-content p {
    font-size: 1.25rem;
    color: var(--color-text-light);
    margin-bottom: 3rem;
    max-width: 550px;
    line-height: 1.6;
}

.hero-visual {
    position: relative;
    right: 0;
    width: 100%;
    display: flex;
    justify-content: center;
}

.hero-visual img {
    max-height: 550px;
    width: auto;
    object-fit: contain;
}

/* Background Decoration */
.hero-bg-decoration {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 100%;
    height: 100%;
    z-index: -1;
    overflow: hidden;
    pointer-events: none;
}

.hero-bg-decoration img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    opacity: 0.6;
}

/* --- Text Section ("Revolutionary") --- */
.text-section {
    padding-top: var(--spacing-xl);
    padding-bottom: 2rem;
}

.section-headline {
    font-size: 3rem;
    max-width: 900px;
    margin-bottom: 1.5rem;
}

.section-subhead {
    font-size: 1.25rem;
    color: var(--color-text-light);
    max-width: 800px;
    margin-bottom: 1rem;
}

/* --- Product Cards --- */
.product-card {
    background: white;
    border-radius: var(--radius-lg);
    box-shadow: 0 0 0 1px rgba(0, 0, 0, 0.03), var(--shadow-card);
    padding: 0;
    /* Let image touch edge if needed, or padding inner */
    display: flex;
    overflow: hidden;
    /* For image curve */
    margin-top: 4rem;
    min-height: 600px;
    /* Tall cards */
}

.product-info {
    flex: 1;
    padding: 5rem;
    display: flex;
    flex-direction: column;
    justify-content: center;
}

.product-visual {
    flex: 1.2;
    background-color: #fbfbfb;
    /* Subtle background for image area */
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
    padding: 4rem;
}

.product-card.reverse {
    flex-direction: row-reverse;
}

/* Product Typography */
.product-header h3 {
    font-size: 3.5rem;
    font-weight: 300;
    /* Thin stylistic font */
    color: var(--color-text-main);
    line-height: 1;
    margin-bottom: 0.5rem;
}

.product-subtitle {
    font-size: 1.5rem;
    color: var(--color-text-light);
    margin-bottom: 2rem;
    font-weight: 300;
}

.product-desc {
    font-size: 1.1rem;
    margin-bottom: 2rem;
    color: var(--color-text-light);
    line-height: 1.7;
}

.actions {
    display: flex;
    gap: 1rem;
    margin-top: auto;
}

/* --- Contact / Footer --- */
#contact {
    background-color: var(--color-bg-light);
    border-top: 1px solid #eee;
}

.contact-layout {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
}

.contact-card {
    background: white;
    padding: 3rem;
    border-radius: var(--radius-md);
    border: 1px solid #eee;
}

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

.contact-form input,
.contact-form textarea {
    width: 100%;
    padding: 1.2rem;
    background: #fdfdfd;
    border: 1px solid #ddd;
    border-radius: 6px;
    font-size: 1rem;
}

.contact-form input:focus,
.contact-form textarea:focus {
    border-color: var(--color-primary);
    outline: none;
    background: white;
}

/* --- Mobile --- */
@media (max-width: 992px) {
    .hero-grid {
        grid-template-columns: 1fr;
        text-align: center;
    }

    .hero-content h1 {
        font-size: 3rem;
        margin: 0 auto 2rem;
    }

    .hero-content p {
        margin: 0 auto 2rem;
    }

    .hero-visual {
        width: 100%;
        right: 0;
        transform: none;
        margin-top: 2rem;
    }

    .product-card,
    .product-card.reverse {
        flex-direction: column;
        min-height: auto;
    }

    .product-info {
        padding: 3rem 2rem;
    }

    .product-visual {
        padding: 3rem 1rem;
        min-height: 300px;
    }

    .contact-layout {
        grid-template-columns: 1fr;
    }

    .nav-link {
        display: none;
    }

    /* Quick fix: Use hamburger for real usage */
    .site-header {
        justify-content: center;
    }

    .logo img {
        height: 45px;
    }
}