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

/* VARIABLES */
:root {
    --bg-main: #f4f6f8;
    --bg-section: #e9eef2;
    --bg-white: #ffffff;
    --bg-card: #eef2f6;

    --text-main: #1f2937;
    --text-body: #4b5563;
    --text-soft: #6b7280;

    --accent: #2f4f6f;
    --accent-dark: #1f3a52;

    --border: #d1d9e0;

    --shadow: 0 6px 20px rgba(31, 58, 82, 0.08);
    --radius: 14px;
}

/* BODY */
body {
    font-family: 'Lora', serif;
    line-height: 1.6;
    color: var(--text-main);
    background: var(--bg-main);
}

/* NAV */
nav {
    background: var(--bg-white);
    box-shadow: 0 2px 6px rgba(0,0,0,0.05);
    position: sticky;
    top: 0;
    z-index: 100;
}

.nav-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 1rem 2rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo {
    font-size: 1.6rem;
    font-weight: 700;
    color: var(--accent);
    text-decoration: none;
}

.nav-links {
    display: flex;
    gap: 2rem;
    list-style: none;
}

.nav-links a {
    text-decoration: none;
    color: var(--text-body);
    font-weight: 500;
}

.nav-links a:hover {
    color: var(--accent);
}

/* HERO */
.hero {
    background: linear-gradient(135deg, #f4f6f8 0%, #e9eef2 100%);
    padding: 5rem 2rem;
}

.hero-container {
    max-width: 1200px;
    margin: 0 auto;
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 3rem;
    align-items: center;
}

.hero-content {
    max-width: 600px;
}

.hero h1 {
    font-size: 3rem;
    color: var(--accent-dark);
    margin-bottom: 1.5rem;
    line-height: 1.2;
}

.hero p {
    font-size: 1.2rem;
    color: var(--text-body);
    margin-bottom: 2rem;
}

/* VIDEO */
.hero-video {
    border-radius: 20px;
    overflow: hidden;
    box-shadow: 0 20px 40px rgba(31, 58, 82, 0.15);
    background: #111827;
}

.hero-video video {
    width: 100%;
}

/* BUTTONS */
.cta-button {
    display: inline-block;
    background: var(--accent);
    color: #fff;
    padding: 1rem 2rem;
    border-radius: 8px;
    text-decoration: none;
    font-weight: 600;
}

.cta-button:hover {
    background: var(--accent-dark);
}

/* SECTIONS */
.features,
.testimonials {
    padding: 4rem 2rem;
    background: var(--bg-main);
}

.benefits {
    padding: 4rem 2rem;
    background: var(--bg-white);
}

.section-title {
    text-align: center;
    font-size: 2.4rem;
    color: var(--accent-dark);
    margin-bottom: 3rem;
}

/* GRID */
.features-grid,
.benefits-grid,
.testimonial-grid {
    max-width: 1200px;
    margin: 0 auto;
    display: grid;
    gap: 2rem;
}

.features-grid {
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
}

.benefits-grid {
    grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
}

.testimonial-grid {
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
}

/* CARDS */
.feature-card,
.testimonial {
    background: var(--bg-card);
    padding: 2rem;
    border-radius: var(--radius);
    box-shadow: var(--shadow);
    text-align: center;
}

.feature-card h3,
.testimonial-author,
.benefit-item h3 {
    color: var(--accent-dark);
}

.feature-card p,
.testimonial p {
    color: var(--text-body);
}

/* BENEFIT */
.benefit-item {
    background: var(--bg-card);
    padding: 1.5rem;
    border-radius: var(--radius);
    border-left: 4px solid var(--accent);
}

/* FOOTER */
footer {
    background: var(--accent-dark);
    color: #e5edf5;
    padding: 3rem 2rem 1rem;
}

.footer-content {
    max-width: 1200px;
    margin: 0 auto;
    display: grid;
    gap: 2rem;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
}

.footer-section a {
    color: #dbe6f0;
    text-decoration: none;
}

.footer-section a:hover {
    color: #fff;
}

.footer-bottom {
    text-align: center;
    padding-top: 2rem;
    border-top: 1px solid rgba(255,255,255,0.2);
}

/* MOBILE */
.mobile-menu-btn {
    display: none;
}

@media (max-width: 768px) {

    .hero-container {
        grid-template-columns: 1fr;
    }

    .hero h1 {
        font-size: 2rem;
    }

    .nav-links {
        display: none;
    }

    .mobile-menu-btn {
        display: block;
    }

    .nav-links.active {
        display: flex;
        flex-direction: column;
        background: white;
        position: absolute;
        top: 100%;
        left: 0;
        right: 0;
        padding: 1rem;
    }
}