/* =========================================================
   AOSEN INTERNATIONAL LIMITED - Home Page Styles
   ========================================================= */

/* ============ Hero Section ============ */
.hero {
    margin-top: 68px;
    background: linear-gradient(135deg, var(--c-bg-light), var(--c-mid));
    padding: 100px 0 70px;
    text-align: center;
}
.hero h1 {
    font-size: 46px;
    color: var(--c-dark);
    font-weight: 800;
    letter-spacing: 1px;
    margin-bottom: 16px;
}
.hero h1 span {
    color: var(--c-brand);
}
.hero .tagline {
    font-size: 22px;
    color: var(--c-brand);
    font-weight: 600;
    letter-spacing: 2px;
    margin-bottom: 20px;
    text-transform: uppercase;
}
.hero p {
    max-width: 720px;
    margin: 0 auto;
    font-size: 17px;
    color: var(--c-dark);
    opacity: 0.85;
}
.hero .btn {
    margin-top: 36px;
}

/* ============ Buttons (outline variant) ============ */
.btn-outline {
    background: transparent;
    color: var(--c-brand);
    border-color: var(--c-accent);
}
.btn-outline:hover {
    background: var(--c-brand);
    border-color: var(--c-brand);
    color: var(--c-white);
}

/* ============ Product Overview Cards ============ */
.product-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 26px;
}
.product-card {
    background: var(--c-white);
    border-radius: 12px;
    overflow: hidden;
    box-shadow: var(--shadow);
    transition: all 0.3s ease;
    border: 1px solid var(--c-bg-light);
    display: flex;
    flex-direction: column;
    height: 100%;
}
.product-card:hover {
    transform: translateY(-8px);
    box-shadow: 0 12px 28px rgba(44, 95, 122, 0.2);
}
.product-card img {
    height: 220px;
    width: 100%;
    object-fit: cover;
}
.product-card .card-body {
    padding: 22px;
    display: flex;
    flex-direction: column;
    flex: 1;
}
.product-card h3 {
    color: var(--c-dark);
    font-size: 20px;
    margin-bottom: 10px;
}
.product-card p {
    color: var(--c-dark);
    opacity: 0.8;
    font-size: 14px;
    margin-bottom: 18px;
}
.product-card .btn {
    padding: 9px 22px;
    font-size: 14px;
    margin-top: auto;
    align-self: center;
}

/* ============ Company Advantages ============ */
.adv-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 26px;
}
.adv-item {
    text-align: center;
    background: var(--c-white);
    border-radius: 12px;
    padding: 36px 22px;
    box-shadow: var(--shadow);
    border-top: 4px solid var(--c-accent);
    transition: all 0.3s ease;
}
.adv-item:hover {
    transform: translateY(-6px);
}
.adv-icon {
    width: 64px;
    height: 64px;
    border-radius: 50%;
    background: var(--c-bg-light);
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 18px;
    font-size: 28px;
    color: var(--c-brand);
}
.adv-item h4 {
    color: var(--c-dark);
    font-size: 18px;
    margin-bottom: 8px;
}
.adv-item p {
    font-size: 14px;
    color: var(--c-dark);
    opacity: 0.8;
}

/* ============ Responsive Home ============ */
@media (max-width: 992px) {
    .product-grid, .adv-grid { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 768px) {
    .hero h1 { font-size: 34px; }
    .hero .tagline { font-size: 17px; }
    .product-grid, .adv-grid { grid-template-columns: 1fr; }
}