:root {
    /* Color Palette */
    --primary-color: #00C08B;
    --primary-color-hover: #00A075;
    --bg-color: #FFFFFF;
    --bg-secondary: #F8F9FA;
    --text-color: #333333;
    --text-light: #666666;
    --border-color: #E1E4E8;
    --white: #FFFFFF;

    /* Spacing */
    --spacing-xs: 0.5rem;
    --spacing-sm: 1rem;
    --spacing-md: 2rem;
    --spacing-lg: 4rem;
    --spacing-xl: 6rem;

    /* Typography */
    --font-family: 'Inter', sans-serif;

    /* Shadows */
    --shadow-sm: 0 2px 4px rgba(0, 0, 0, 0.05);
    --shadow-md: 0 4px 12px rgba(0, 0, 0, 0.08);
    --shadow-lg: 0 8px 24px rgba(0, 0, 0, 0.12);

    /* Border Radius */
    --radius-sm: 4px;
    --radius-md: 8px;
    --radius-lg: 16px;

    /* Container */
    --container-width: 1200px;
}

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

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

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

a {
    text-decoration: none;
    color: inherit;
    transition: all 0.3s ease;
}

/* Utilities */
.container {
    width: 90%;
    max-width: var(--container-width);
    margin: 0 auto;
    padding: 0 var(--spacing-sm);
}

.btn {
    display: inline-block;
    padding: 12px 24px;
    border-radius: var(--radius-md);
    font-weight: 600;
    font-size: 1rem;
    cursor: pointer;
    text-align: center;
}

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

.btn--primary:hover {
    background-color: var(--primary-color-hover);
    transform: translateY(-1px);
    box-shadow: var(--shadow-sm);
}

/* Browser Mockup */
.browser-mockup {
    background: var(--white);
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-lg);
    overflow: hidden;
    border: 1px solid var(--border-color);
}

.browser-mockup__header {
    background: #f1f3f5;
    padding: 10px 15px;
    display: flex;
    gap: 8px;
    border-bottom: 1px solid var(--border-color);
}

.dot {
    width: 12px;
    height: 12px;
    border-radius: 50%;
}

.red {
    background-color: #ff5f56;
}

.yellow {
    background-color: #ffbd2e;
}

.green {
    background-color: #27c93f;
}

/* 1. HEADER */
.header {
    background-color: var(--white);
    padding: var(--spacing-sm) 0;
    position: sticky;
    top: 0;
    z-index: 100;
    border-bottom: 1px solid var(--border-color);
}

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

.header__logo {
    display: flex;
    align-items: center;
    gap: 10px;
}

.header__logo img {
    height: 40px;
    width: auto;
}

.logo-text {
    font-weight: 700;
    font-size: 1.25rem;
    color: var(--text-color);
}

/* 2. HERO SECTION */
.hero {
    padding: var(--spacing-xl) 0;
    background-color: var(--white);
}

.hero__container {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-lg);
    align-items: center;
}

.hero__title {
    font-size: 3rem;
    font-weight: 700;
    line-height: 1.2;
    margin-bottom: var(--spacing-md);
    color: var(--text-color);
}

.hero__subtitle {
    font-size: 1.125rem;
    color: var(--text-light);
    margin-bottom: var(--spacing-md);
    max-width: 500px;
}

.hero__image-wrapper {
    perspective: 1000px;
}

.hero__image-wrapper img {
    border-radius: 0 0 var(--radius-md) var(--radius-md);
}

/* 3. FEATURES SECTION */
.features {
    padding: var(--spacing-xl) 0;
    background-color: var(--white);
}

.feature {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-lg);
    align-items: center;
    margin-bottom: var(--spacing-xl);
}

.feature:last-child {
    margin-bottom: 0;
}

.feature--reverse .feature__content {
    order: 2;
}

.feature__title {
    font-size: 2rem;
    font-weight: 700;
    margin-bottom: var(--spacing-sm);
}

.feature__text {
    font-size: 1.125rem;
    color: var(--text-light);
}

.feature__image-wrapper {
    display: flex;
    justify-content: center;
}

.card-ui {
    background: var(--white);
    padding: var(--spacing-sm);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-md);
    border: 1px solid var(--border-color);
    transition: transform 0.3s ease;
}

.card-ui:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-lg);
}

.card-ui img {
    border-radius: var(--radius-md);
}

/* 4. ANALYSIS SECTION */
.analysis {
    padding: var(--spacing-xl) 0;
    background-color: var(--bg-secondary);
    text-align: center;
}

.analysis__header {
    max-width: 700px;
    margin: 0 auto var(--spacing-lg);
}

.analysis__title {
    font-size: 2.25rem;
    font-weight: 700;
    margin-bottom: var(--spacing-sm);
}

.analysis__text {
    font-size: 1.125rem;
    color: var(--text-light);
}

.analysis__chart {
    max-width: 800px;
    margin: 0 auto;
}

/* 5. FOOTER */
.footer {
    background-color: #1a1a1a;
    color: var(--white);
    padding: var(--spacing-xl) 0 var(--spacing-lg);
    text-align: center;
}

.footer__cta-text {
    font-size: 2rem;
    margin-bottom: var(--spacing-md);
}

.footer__btn {
    margin-bottom: var(--spacing-lg);
}

.footer__links {
    display: flex;
    justify-content: center;
    gap: var(--spacing-xl);
    margin-bottom: var(--spacing-md);
    text-align: left;
}

.footer__column h4 {
    margin-bottom: var(--spacing-sm);
    color: #888;
    text-transform: uppercase;
    font-size: 0.875rem;
    letter-spacing: 1px;
}

.footer__column a {
    display: block;
    color: var(--white);
    opacity: 0.8;
    margin-bottom: 8px;
}

.footer__column a:hover {
    opacity: 1;
    text-decoration: underline;
}

.footer__copyright {
    color: #666;
    font-size: 0.875rem;
    border-top: 1px solid #333;
    padding-top: var(--spacing-md);
}

/* Contact Section */
.contact-section {
    padding: var(--spacing-xl) 0;
    background-color: var(--white);
    border-top: 1px solid var(--border-color);
}

.contact__container {
    display: flex;
    justify-content: center;
}

.contact__form-wrapper {
    width: 100%;
    max-width: 600px;
    background: var(--white);
    padding: var(--spacing-lg);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-lg);
    border: 1px solid var(--border-color);
}

.contact__title {
    font-size: 2rem;
    font-weight: 700;
    margin-bottom: var(--spacing-xs);
    text-align: center;
}

.contact__subtitle {
    text-align: center;
    color: var(--text-light);
    margin-bottom: var(--spacing-md);
}

.form-group {
    margin-bottom: var(--spacing-sm);
}

.form-group label {
    display: block;
    margin-bottom: 8px;
    font-weight: 500;
    color: var(--text-color);
}

.form-group input,
.form-group textarea {
    width: 100%;
    padding: 12px;
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    font-family: var(--font-family);
    font-size: 1rem;
    transition: border-color 0.3s ease;
}

.form-group input:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(0, 192, 139, 0.1);
}

.btn--full {
    width: 100%;
}

/* Footer Updates */
.footer__content {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: var(--spacing-lg);
}

.contact-list {
    list-style: none;
    padding: 0;
}

.contact-list li {
    color: var(--white);
    opacity: 0.8;
    margin-bottom: 8px;
}

/* Responsive */
@media (max-width: 768px) {
    .header__nav {
        display: none;
        /* Simplify for mobile for now, or add hamburger */
    }

    .hero__container,
    .feature,
    .feature--reverse {
        grid-template-columns: 1fr;
        text-align: center;
    }

    .hero__title {
        font-size: 2.25rem;
    }

    .feature--reverse .feature__content {
        order: 0;
    }

    .container {
        width: 95%;
    }

    .contact__form-wrapper {
        padding: var(--spacing-md);
    }
}