/* Design System Variables */
:root {
    /* Colors */
    --primary-white: #FFFFFF;
    --primary-black: #000000;
    --dark-gray: #333333;
    --medium-gray: #666666;
    --divider-gray: #E5E5E5;

    /* Typography */
    --font-primary: 'Manrope', 'Inter', sans-serif;
    /* Fallback to Inter if Manrope unavailable, or system sans */

    /* Font Sizes */
    --fs-h1: clamp(48px, 5vw, 72px);
    /* Responsive H1 */
    --fs-h2: clamp(32px, 4vw, 48px);
    --fs-h3: clamp(24px, 3vw, 32px);
    --fs-body: 18px;
    --fs-label: 14px;

    /* Font Weights */
    --fw-thin: 100;
    --fw-regular: 400;
    --fw-medium: 500;
    --fw-semibold: 600;
    --fw-bold: 700;

    /* Spacing */
    --spacing-xs: 8px;
    --spacing-sm: 16px;
    --spacing-md: 24px;
    --spacing-lg: 40px;
    --spacing-xl: 80px;
    --spacing-xxl: 120px;
    --container-padding: 5%;
    /* 5% padding on sides */
    --max-width: 1440px;
    /* Max width for large screens */
}

/* Global Styles */
body {
    font-family: var(--font-primary);
    background-color: var(--primary-white);
    color: var(--dark-gray);
    font-size: var(--fs-body);
    line-height: 1.6;
    overflow-x: hidden;
}

/* Typography Utilities */
.h1 {
    font-size: var(--fs-h1);
    font-weight: var(--fw-thin);
    /* Base thin */
    color: var(--primary-black);
    line-height: 1.1;
    letter-spacing: -0.02em;
}

.h1 strong {
    font-weight: var(--fw-bold);
}

.h2 {
    font-size: var(--fs-h2);
    font-weight: var(--fw-bold);
    color: var(--primary-black);
    line-height: 1.2;
    margin-bottom: var(--spacing-md);
}

.h3 {
    font-size: var(--fs-h3);
    font-weight: var(--fw-semibold);
    color: var(--primary-black);
    line-height: 1.3;
}

.label {
    font-size: var(--fs-label);
    font-weight: var(--fw-medium);
    color: var(--medium-gray);
    text-transform: uppercase;
    letter-spacing: 0.05em;
    margin-bottom: var(--spacing-sm);
    display: block;
}

/* Layout Utilities */
.container {
    padding-left: var(--container-padding);
    padding-right: var(--container-padding);
    max-width: var(--max-width);
    margin: 0 auto;
}

.section {
    padding-top: var(--spacing-xxl);
    padding-bottom: var(--spacing-xxl);
}

.grid {
    display: grid;
    gap: var(--spacing-lg);
}

.flex {
    display: flex;
}

.flex-between {
    justify-content: space-between;
}

.flex-center {
    justify-content: center;
    align-items: center;
}

/* Language Switch */
.lang-btn {
    width: 32px;
    height: 32px;
    border-radius: 50%;
    background-color: #E5E5E5;
    color: #999;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 12px;
    font-weight: 600;
    text-decoration: none;
    transition: all 0.2s;
}

.lang-btn.active {
    background-color: #E5E5E5;
    /* In current reference looks like same gray, maybe slightly darker or text darker? */
    color: #333;
}

.lang-btn:hover {
    background-color: #CCC;
    color: #000;
}

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 12px 24px;
    border-radius: 9999px;
    /* Pill shape */
    font-size: 16px;
    font-weight: var(--fw-medium);
    text-decoration: none;
    transition: all 0.3s ease;
    cursor: pointer;
}

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

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

.btn-outline {
    background-color: transparent;
    color: var(--primary-black);
    border: 1px solid var(--divider-gray);
}

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

/* Image Styles */
.img-rounded {
    border-radius: 4px;
}

.img-desaturated {
    filter: saturate(0.8) contrast(1.1);
    /* Subtle aesthetic adjustment */
}

/* Divider */
.divider {
    height: 1px;
    background-color: var(--divider-gray);
    width: 100%;
    margin-top: var(--spacing-lg);
    margin-bottom: var(--spacing-lg);
}

/* =============================================
   Scroll Animations (data-animate)
   ============================================= */
[data-animate] {
    opacity: 0;
    transform: translateY(24px);
    transition: opacity 0.55s ease-out, transform 0.55s ease-out;
}

[data-animate].is-visible {
    opacity: 1;
    transform: translateY(0);
}

@media (prefers-reduced-motion: reduce) {
    [data-animate] {
        opacity: 1;
        transform: none;
        transition: none;
    }
}

/* Responsive Utilities */
@media (max-width: 768px) {
    :root {
        --container-padding: 24px;
        --spacing-xxl: 80px;
        --spacing-xl: 48px;
    }

    .h1 {
        font-size: 40px;
    }

    .grid {
        grid-template-columns: 1fr !important;
        /* Force stack on mobile */
    }

    .flex-between {
        flex-direction: column;
        align-items: flex-start;
        gap: var(--spacing-md);
    }

    header.flex-between {
        flex-direction: row;
        /* Keep header horizontal */
        align-items: center;
    }

    /* Footer adjustments */
    footer .flex-between {
        flex-direction: column;
        align-items: flex-start;
    }
}