/* ==========================================================================
   CSS TỐI ƯU CHO TRANG CHI TIẾT BÀI VIẾT (VIFASO)
   ========================================================================== */

.main-wrapper {
    background-color: #f8fafc;
    font-family: 'Segoe UI', Roboto, Helvetica, Arial, sans-serif;
}

.section-container {
    max-width: 1150px;
    margin: 0 auto;
}

/* 1. Hero Banner Bài Viết */
.hero-blog {
    position: relative;
    background: url('/images/banner/banner-tuoi-nho-giot.png') no-repeat center center;
    background-size: cover;
    color: #fff;
    padding: 90px 5%;
}

.hero-blog-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(135deg, rgba(6, 78, 59, 0.88), rgba(11, 99, 61, 0.72));
    z-index: 1;
}

.hero-blog-content {
    position: relative;
    z-index: 2;
    max-width: 1150px;
    margin: 0 auto;
    display: flex;
    flex-direction: column;
    gap: 16px;
}

.blog-meta-info {
    display: flex;
    gap: 20px;
    font-size: 13px;
    color: #a7f3d0;
    align-items: center;
    flex-wrap: wrap;
}

.blog-date-badge {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    background: rgba(167, 243, 208, 0.15);
    padding: 4px 12px;
    border-radius: 20px;
    border: 1px solid rgba(167, 243, 208, 0.3);
}

.blog-title {
    font-size: 36px;
    font-weight: 800;
    margin: 0;
    line-height: 1.25;
    color: #ffffff;
    max-width: 950px;
}

.text-accent {
    color: #4ade80;
}

.blog-sapo {
    font-size: 16px;
    color: #e6fffa;
    line-height: 1.6;
    max-width: 850px;
    margin: 0;
}

.blog-brand-slogan {
    font-size: 14px;
    color: #a7f3d0;
    font-style: italic;
    display: flex;
    align-items: center;
    gap: 6px;
    margin-top: 5px;
}

/* 2. Main Content & Sidebar Layout */
.blog-content-section {
    padding: 60px 5%;
    background-color: #fff;
}

.blog-grid-layout {
    max-width: 1150px;
    margin: 0 auto;
    display: grid;
    grid-template-columns: 2.2fr 1fr;
    gap: 45px;
    align-items: start;
}

.blog-article-body {
    color: #334155;
    line-height: 1.7;
    font-size: 15px;
}

/* Mục lục bài viết */
.table-of-contents {
    background: #f1f5f9;
    border-left: 4px solid #059669;
    padding: 25px;
    border-radius: 0 12px 12px 0;
    margin-bottom: 40px;
}

.toc-title {
    font-size: 18px;
    font-weight: 800;
    color: #0f172a;
    margin: 0 0 15px 0;
}

.toc-list {
    margin: 0;
    padding-left: 20px;
    display: flex;
    flex-direction: column;
    gap: 8px;
    font-weight: 600;
}

.toc-list a {
    color: #059669;
    text-decoration: none;
}

.toc-list a:hover {
    text-decoration: underline;
}

/* Heading các mục trong bài */
.blog-section-block {
    margin-bottom: 45px;
}

.blog-heading {
    color: #065f46;
    font-size: 24px;
    font-weight: 800;
    border-bottom: 2px solid #e2e8f0;
    padding-bottom: 10px;
    margin-bottom: 20px;
}

/* Hình ảnh minh họa bài viết */
.blog-img-box {
    border-radius: 16px;
    overflow: hidden;
    box-shadow: 0 10px 25px -5px rgba(0,0,0,0.1);
    margin-bottom: 45px;
}

.blog-img {
    width: 100%;
    height: auto;
    display: block;
    object-fit: cover;
}

/* Lợi ích grid card */
.benefits-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
    gap: 15px;
    margin-top: 15px;
}

.benefit-card {
    background: #f8fafc;
    padding: 18px;
    border-radius: 10px;
    border: 1px solid #e2e8f0;
}

.benefit-card strong {
    color: #0f172a;
    display: block;
    margin-bottom: 5px;
}

/* Công thức / Box lưu ý */
.formula-box {
    background: #ecfdf5;
    border: 1px solid #a7f3d0;
    padding: 20px;
    border-radius: 10px;
    font-family: monospace;
    font-size: 14px;
    margin: 15px 0;
}

/* Các loại béc tưới grid */
.emitters-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
    gap: 15px;
}

.emitter-card {
    border: 1px solid #cbd5e1;
    padding: 15px;
    border-radius: 8px;
}

.emitter-card strong {
    color: #065f46;
}

.emitter-card p {
    font-size: 13px;
    color: #64748b;
    margin-top: 5px;
    margin-bottom: 0;
}

/* Sidebar Đăng Ký Tư Vấn */
.blog-sidebar-form {
    background: #f8fafc;
    border: 1px solid #e2e8f0;
    border-radius: 14px;
    padding: 30px;
    position: sticky;
    top: 20px;
    box-shadow: 0 4px 6px -1px rgba(0,0,0,0.02);
}

.sidebar-form-title {
    font-size: 18px;
    font-weight: 800;
    color: #0f172a;
    margin-bottom: 10px;
}

.sidebar-form-desc {
    font-size: 13px;
    color: #64748b;
    line-height: 1.5;
    margin-bottom: 20px;
}

.contact-form {
    display: flex;
    flex-direction: column;
    gap: 15px;
}

.form-group label {
    display: block;
    font-size: 12px;
    font-weight: 700;
    color: #1e293b;
    margin-bottom: 5px;
}

.form-control {
    width: 100%;
    padding: 11px;
    border: 1px solid #cbd5e1;
    border-radius: 8px;
    font-size: 13px;
    box-sizing: border-box;
}

.form-control:focus {
    outline: none;
    border-color: #059669;
}

textarea.form-control {
    resize: vertical;
}

.btn-submit {
    background: #059669;
    color: #fff;
    border: none;
    padding: 12px;
    border-radius: 8px;
    font-weight: 700;
    font-size: 14px;
    cursor: pointer;
    transition: background 0.2s;
}

.btn-submit:hover {
    background-color: #047857;
}

/* Responsive */
@media screen and (max-width: 992px) {
    .blog-grid-layout {
        grid-template-columns: 1fr;
        gap: 30px;
    }
    .blog-sidebar-form {
        position: static;
    }
}

@media screen and (max-width: 768px) {
    .blog-title {
        font-size: 28px;
    }
}