/* --- CSS RESET & GLOBAL STYLES --- */
*,
*::before,
*::after {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

:root {
    --color-background: #FDFCFB;
    --color-text: #1a1a1a;
    --color-primary: #C0A062;
    --color-primary-dark: #a88a4e;
    --color-surface: #FFFFFF;
    --color-border: #EAEAEA;
    --color-light-text: #555;

    --font-family-base: 'Inter', sans-serif;

    /* Typographic Scale (Major Third: 1.250) */
    --font-size-sm: 0.8rem;      /* 12.8px */
    --font-size-base: 1rem;       /* 16px */
    --font-size-md: 1.25rem;      /* 20px */
    --font-size-lg: 1.563rem;     /* 25px */
    --font-size-xl: 1.953rem;     /* 31.25px */
    --font-size-xxl: 2.441rem;    /* 39.06px */
    --font-size-xxxl: 3.052rem;   /* 48.83px */
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-family-base);
    font-size: var(--font-size-base);
    line-height: 1.6;
    color: var(--color-text);
    background-color: var(--color-background);
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

h1, h2, h3 {
    line-height: 1.2;
    font-weight: 700;
}

p {
    max-width: 65ch; /* Improves readability */
}

a {
    color: var(--color-primary);
    text-decoration: none;
    transition: color 0.2s ease;
}

a:hover {
    color: var(--color-primary-dark);
}

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

.container {
    width: 100%;
    max-width: 1100px;
    margin-left: auto;
    margin-right: auto;
    padding-left: 1.5rem;
    padding-right: 1.5rem;
}

/* --- ACCESSIBILITY --- */
.skip-link {
    position: absolute;
    top: -40px;
    left: 0;
    background: var(--color-primary);
    color: var(--color-surface);
    padding: 8px;
    z-index: 100;
    transition: top 0.3s;
}

.skip-link:focus {
    top: 0;
}

/* Custom Focus Style */
*:focus-visible {
    outline: 2px solid var(--color-primary);
    outline-offset: 2px;
    border-radius: 4px;
}

/* --- UTILITY CLASSES --- */
.fade-in {
    opacity: 0;
    transform: translateY(20px);
    transition: opacity 0.6s ease-out, transform 0.6s ease-out;
}

.fade-in.is-visible {
    opacity: 1;
    transform: translateY(0);
}

.fade-in-point { /* For individual bullet points */
    opacity: 0;
    transform: translateX(-15px); /* Slide in from left */
    transition: opacity 0.6s ease-out, transform 0.6s ease-out;
}

.fade-in-point.is-visible {
    opacity: 1;
    transform: translateX(0);
}


/* --- COMPONENTS --- */
.button {
    display: inline-block;
    font-family: var(--font-family-base);
    font-size: var(--font-size-base);
    font-weight: 600;
    padding: 0.75rem 1.5rem;
    border-radius: 6px;
    cursor: pointer;
    text-align: center;
    transition: background-color 0.2s ease, transform 0.2s ease;
    border: none;
}

.button--primary {
    background-color: var(--color-primary);
    color: var(--color-surface);
}

.button--primary:hover {
    background-color: var(--color-primary-dark);
    color: var(--color-surface);
    transform: translateY(-2px);
}


/* --- HEADER --- */
.header {
    position: sticky;
    top: 0;
    width: 100%;
    background-color: rgba(253, 252, 251, 0.8);
    backdrop-filter: blur(10px);
    z-index: 50;
    border-bottom: 1px solid var(--color-border);
}

.header__nav {
    display: flex;
    justify-content: space-between;
    align-items: center;
    height: 70px;
}

.header__logo {
    font-weight: 700;
    font-size: var(--font-size-md);
    color: var(--color-text);
}
.header__logo:hover {
    color: var(--color-text);
}

.header__nav-list {
    display: none; /* Hidden on mobile */
    list-style: none;
    gap: 2rem;
    align-items: center;
}

.header__nav-link {
    font-weight: 600;
    color: var(--color-text);
}
.header__nav-link--cta {
    background-color: var(--color-primary);
    color: var(--color-surface);
    padding: 0.5rem 1rem;
    border-radius: 6px;
    transition: background-color 0.2s ease;
}
.header__nav-link--cta:hover {
    background-color: var(--color-primary-dark);
    color: var(--color-surface);
}


/* --- HERO SECTION --- */
.hero {
    padding: 4rem 0;
}

.hero__container {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 3rem;
    text-align: center;
}

.hero__content {
    max-width: 650px;
}

.hero__headline {
    font-size: var(--font-size-xxl);
    margin-bottom: 1rem;
}

.hero__subheadline {
    font-size: var(--font-size-md);
    color: var(--color-light-text);
    margin-bottom: 2rem;
}

.hero__visual {
    max-width: 400px;
}

.hero__image {
    border-radius: 12px;
    box-shadow: 0 10px 20px rgba(0,0,0,0.05);
}


/* --- STORY SECTION --- */
.story {
    padding: 4rem 0;
}
.story__container {
    display: grid;
    gap: 4rem;
}
.story__headline {
    font-size: var(--font-size-xl);
    margin-bottom: 1rem;
    color: var(--color-text);
}
.story__challenge, .story__solution {
    text-align: center;
    max-width: 700px;
    margin: 0 auto;
}


/* --- ABOUT SECTION (INTERACTIVE) --- */
.about {
    padding: 4rem 0;
    background-color: var(--color-surface);
}
.about__container {
    text-align: center;
}
.about__headline {
    font-size: var(--font-size-xl);
    margin-bottom: 3rem;
    max-width: 700px;
    margin-left: auto;
    margin-right: auto;
}
.about__content-interactive {
    max-width: 800px;
    margin: 0 auto;
    text-align: left;
}
.about__bullet-list {
    list-style: none; /* Remove default bullet points */
    padding-left: 0;
}
.about__bullet-item {
    background-color: var(--color-background);
    border-left: 4px solid var(--color-primary);
    padding: 1.5rem;
    margin-bottom: 2rem;
    border-radius: 8px;
    box-shadow: 0 4px 8px rgba(0,0,0,0.03);
}
.about__bullet-item h3 {
    font-size: var(--font-size-lg);
    margin-bottom: 0.5rem;
    color: var(--color-text);
}
.about__bullet-item p {
    color: var(--color-light-text);
    max-width: none; /* Allow full width within the card */
}
 .ai-image {
        display: none; /* Hide AI image on tablets for better layout */
    }



/* --- ECOSYSTEM SECTION (HIDDEN FOR NOW) --- */
/*
.ecosystem {
    padding: 4rem 0;
}
.ecosystem__container {
    text-align: center;
}
.ecosystem__headline {
    font-size: var(--font-size-xl);
    margin-bottom: 3rem;
}
.ecosystem__grid {
    display: grid;
    gap: 1.5rem;
}

.ecosystem-card {
    background-color: var(--color-surface);
    padding: 2rem;
    border-radius: 8px;
    border: 1px solid var(--color-border);
    box-shadow: 0 4px 6px rgba(0,0,0,0.02);
}
.ecosystem-card__title {
    font-size: var(--font-size-md);
    margin-bottom: 0.5rem;
}
.ecosystem-card__description {
    color: var(--color-light-text);
}
*/


/* --- CTA (NEWSLETTER - HIDDEN FOR NOW) --- */
/*
.cta {
    padding: 4rem 0;
    background-color: var(--color-surface);
}
.cta__container {
    text-align: center;
    max-width: 600px;
}
.cta__headline {
    font-size: var(--font-size-xl);
    margin-bottom: 1rem;
}
.cta__description {
    margin-bottom: 2rem;
    color: var(--color-light-text);
}
.cta__label {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    white-space: nowrap;
    border: 0;
}
.cta__form-group {
    display: flex;
    flex-direction: column;
    gap: 1rem;
}
.cta__input {
    width: 100%;
    padding: 0.75rem 1rem;
    font-size: var(--font-size-base);
    border: 1px solid var(--color-border);
    border-radius: 6px;
    font-family: var(--font-family-base);
}
*/


/* --- FOOTER --- */
.footer {
    padding: 2rem 0;
    border-top: 1px solid var(--color-border);
    background-color: var(--color-surface);
}
.footer__container {
    text-align: center;
    color: #777;
    font-size: var(--font-size-sm);
}
.footer__container p {
    margin-bottom: 0.5rem;
}
.footer__container p:last-child {
    margin-bottom: 0;
}


/* --- MEDIA QUERIES (Mobile-First) --- */

/* Medium devices (tablets, 768px and up) */
@media (min-width: 768px) {
    :root {
        --font-size-base: 1.125rem; /* 18px */
    }

    .header__nav-list {
        display: flex;
    }

    .hero__container {
        flex-direction: row;
        text-align: left;
        gap: 4rem;
    }
    
    .hero__content {
        flex: 1;
    }

    .hero__visual {
        flex: 1;
        max-width: 500px;
    }
    
    .hero__headline {
        font-size: var(--font-size-xxxl);
    }
    
    .story__container {
        grid-template-columns: 1fr 1fr;
        gap: 2rem;
    }

    .story__challenge, .story__solution {
        text-align: left;
    }

    .ai-image {
        display: none; /* Hide AI image on tablets for better layout */
    }

    /* .ecosystem__grid {
        grid-template-columns: repeat(3, 1fr);
    } */

    /* .cta__form-group {
        flex-direction: row;
    }
    .cta__input {
        flex-grow: 1;
    } */
}