/* =========================
   GLOBAL
========================= */

body {
    font-family: Arial, Helvetica, sans-serif;
    background-color: #ffffff;
    color: #222;
    margin: 0;
    padding: 0;
    line-height: 1.6;
}

.page-wrapper {
    max-width: 1200px;
    margin: auto;
    padding: 20px;
}

/* =========================
   HEADER
========================= */

header {
    text-align: center;
    padding: 60px 20px;
    background: linear-gradient(135deg, #ff2d2d, #c40000);
    color: white;
    border-radius: 18px;
    margin-bottom: 30px;
    box-shadow: 0 8px 24px rgba(255, 0, 0, 0.2);
}

header h1 {
    font-size: 3rem;
    margin-bottom: 10px;
}

header p {
    opacity: 0.9;
    font-size: 1.1rem;
}

/* =========================
   NAVIGATION
========================= */

nav {
    display: flex;
    justify-content: center;
    gap: 20px;
    margin-bottom: 40px;
    flex-wrap: wrap;
}

nav a {
    text-decoration: none;
    color: #c40000;
    background: white;
    border: 2px solid #ff2d2d;
    padding: 12px 22px;
    border-radius: 999px;
    font-weight: bold;
    transition: 0.3s ease;
}

nav a:hover {
    background: #ff2d2d;
    color: white;
    transform: translateY(-2px);
}

/* =========================
   DOWNLOAD BUTTON
========================= */

.extension-download {
    text-align: center;
    margin-bottom: 50px;
}

.extension-download a {
    display: inline-block;
    background: #ff2d2d;
    color: white;
    padding: 16px 36px;
    border-radius: 14px;
    text-decoration: none;
    font-size: 1.2rem;
    font-weight: bold;
    transition: 0.3s ease;
    box-shadow: 0 6px 18px rgba(255, 0, 0, 0.2);
}

.extension-download a:hover {
    background: #c40000;
    transform: scale(1.05);
}

/* =========================
   PRESENTATION
========================= */

.extension-presentation {
    margin-bottom: 60px;
}

.extension-presentation h2 {
    text-align: center;
    color: #c40000;
    font-size: 2rem;
    margin-bottom: 20px;
}

.extension-presentation p {
    text-align: center;
    max-width: 700px;
    margin: auto;
    margin-bottom: 40px;
    font-size: 1.1rem;
}

.extension-documentation {
    display: flex;
    gap: 30px;
    flex-wrap: wrap;
    align-items: center;
    justify-content: center;
}

.extension-documentation-video,
.extension-documentation-images {
    flex: 1 1 450px;
}

video,
img {
    width: 100%;
    border-radius: 18px;
    box-shadow: 0 8px 24px rgba(0, 0, 0, 0.12);
}

/* =========================
   REVIEWS
========================= */

.extension-reviews-block {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 24px;
    margin-bottom: 60px;
}

.extension-review {
    background: white;
    border: 2px solid #ffd6d6;
    border-left: 6px solid #ff2d2d;
    padding: 24px;
    border-radius: 18px;
    box-shadow: 0 4px 14px rgba(0, 0, 0, 0.05);
    transition: 0.3s ease;
}

.extension-review:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 24px rgba(255, 0, 0, 0.12);
}

.extension-review p:last-child {
    margin-top: 20px;
    font-weight: bold;
    color: #c40000;
}

/* =========================
   INSTALLATION
========================= */

.extension-installation {
    background: #fff5f5;
    padding: 40px;
    border-radius: 20px;
    margin-bottom: 50px;
}

.extension-installation h2 {
    color: #c40000;
    text-align: center;
    margin-bottom: 30px;
}

.extension-installation ol {
    max-width: 700px;
    margin: auto;
    padding-left: 20px;
}

.extension-installation li {
    margin-bottom: 16px;
    font-size: 1.05rem;
}

/* =========================
   FOOTER
========================= */

footer {
    text-align: center;
    padding: 30px 20px;
    border-top: 2px solid #eee;
    color: #777;
    font-size: 0.95rem;
}

/* =========================
   RESPONSIVE
========================= */

@media (max-width: 768px) {
    header h1 {
        font-size: 2.2rem;
    }

    .extension-presentation h2 {
        font-size: 1.5rem;
    }

    nav {
        flex-direction: column;
        align-items: center;
    }
}