/* --- Global Styles & Mobile First --- */
:root {
    --dark-bg: #111111;
    --card-bg: #1d1d1f;
    --text-primary: #f5f5f7;
    --text-secondary: #a1a1a6;
    --accent-blue: #007aff;
    --font-heading: 'Poppins', sans-serif;
    --font-body: 'Roboto', sans-serif;
}

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

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

.container {
    width: 90%;
    max-width: 1100px;
    margin: 0 auto;
}

h1, h2, h3 {
    font-family: var(--font-heading);
    font-weight: 700;
    line-height: 1.2;
    margin-bottom: 1rem;
}

p {
    margin-bottom: 1rem;
    color: var(--text-secondary);
}

section {
    padding: 60px 0;
}

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

/* --- Hero Section --- */
.hero {
    background: linear-gradient(rgba(0,0,0,0.6), rgba(0,0,0,0.8)), url('../img/hero-macbook.jpg') no-repeat center center/cover;
    min-height: 90vh;
    display: flex;
    align-items: center;
    text-align: center;
    padding: 40px 0;
}

.hero-content .eyebrow {
    display: inline-block;
    color: var(--accent-blue);
    font-weight: 500;
    margin-bottom: 1rem;
    text-transform: uppercase;
    letter-spacing: 1px;
}

.hero-content .headline {
    font-size: 2.5rem;
    font-weight: 800;
    color: #fff;
}

.hero-content .sub-headline {
    font-size: 1.1rem;
    max-width: 600px;
    margin: 0 auto 2rem auto;
    color: var(--text-primary);
}

.hero-content .product-name {
    margin-top: 1.5rem;
    font-size: 0.9rem;
    color: var(--text-secondary);
}

.cta-button {
    display: inline-block;
    background-color: var(--accent-blue);
    color: #fff;
    padding: 15px 35px;
    border-radius: 8px;
    text-decoration: none;
    font-weight: 500;
    font-size: 1.1rem;
    transition: background-color 0.3s ease, transform 0.2s ease;
}

.cta-button:hover {
    background-color: #8000b3;
    transform: translateY(-2px);
}

/* --- Pain Point Section --- */
.pain-point {
    text-align: center;
    background-color: var(--card-bg);
}

.pain-point h2 {
    font-size: 1.8rem;
}

.pain-point p {
    max-width: 700px;
    margin: 0 auto;
    font-size: 1.1rem;
}

/* --- Features Section --- */
.feature-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: 30px;
}

.feature-card {
    background-color: var(--card-bg);
    padding: 30px;
    border-radius: 12px;
    text-align: center;
}

.feature-icon {
    width: 50px;
    height: 50px;
    margin-bottom: 1rem;
    filter: invert(48%) sepia(85%) saturate(2283%) hue-rotate(188deg) brightness(101%) contrast(101%); /* Converts black SVG to accent blue */
}

.feature-card h3 {
    font-size: 1.3rem;
    color: var(--text-primary);
}

/* --- Testimonial Section --- */
.testimonial {
    background-color: var(--dark-bg);
    text-align: center;
}

.testimonial blockquote {
    font-size: 1.4rem;
    font-style: italic;
    max-width: 800px;
    margin: 0 auto 1rem auto;
    border-left: 4px solid var(--accent-blue);
    padding-left: 20px;
    text-align: left;
    color: var(--text-primary);
}

.testimonial cite {
    font-weight: 500;
    color: var(--text-secondary);
}

/* --- CTA Section --- */
.cta-section {
    background-color: #000;
    text-align: center;
}
.cta-section h2 {
    font-size: 2rem;
    color: #fff;
}
.cta-image {
    max-width: 500px;
    margin-bottom: 2rem;
    border-radius: 12px;
}
.product-specs {
    background-color: var(--card-bg);
    padding: 20px;
    border-radius: 8px;
    margin: 2rem auto;
    max-width: 450px;
    line-height: 1.8;
    text-align: left;
    border: 1px solid #333;
}
.product-specs strong {
    color: var(--text-primary);
}

/* --- FAQ Section --- */
.faq-item {
    border-bottom: 1px solid var(--card-bg);
}

.faq-question {
    width: 100%;
    background: none;
    border: none;
    color: var(--text-primary);
    text-align: left;
    padding: 20px 0;
    font-size: 1.2rem;
    font-weight: 500;
    cursor: pointer;
    position: relative;
    padding-right: 40px;
}

.faq-question::after {
    content: '+';
    position: absolute;
    right: 0;
    top: 50%;
    transform: translateY(-50%);
    font-size: 1.5rem;
    color: var(--accent-blue);
    transition: transform 0.3s ease;
}

.faq-item.active .faq-question::after {
    transform: translateY(-50%) rotate(45deg);
}

.faq-answer {
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.4s ease-in-out;
}
.faq-answer p {
    padding: 0 0 20px 0;
    max-width: 90%;
}


/* --- Footer --- */
footer {
    text-align: center;
    padding: 40px 20px;
    background-color: #000;
    font-size: 0.9rem;
    color: var(--text-secondary);
}

footer p {
    margin-bottom: 0.5rem;
}

/* --- Desktop & Tablet Media Queries --- */
@media (min-width: 768px) {
    .hero-content .headline {
        font-size: 4rem;
    }
    .hero-content .sub-headline {
        font-size: 1.2rem;
    }
    .feature-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (min-width: 1024px) {
    .feature-grid {
        grid-template-columns: repeat(4, 1fr);
    }
    .hero {
        text-align: left;
    }
    .hero-content {
        padding-right: 40%;
    }
    .hero-content .sub-headline {
        margin: 0 0 2rem 0;
    }
}