/* Thiết lập font Montserrat cho toàn bộ trang chi tiết dự án */
.single-campaign-page, 
.single-campaign-page h1, 
.single-campaign-page h2, 
.single-campaign-page h3, 
.single-campaign-page h4, 
.single-campaign-page p, 
.single-campaign-page span, 
.single-campaign-page li, 
.single-campaign-page a {
    font-family: 'Montserrat', sans-serif !important;
}

/* Giữ độ đậm đặc trưng cho các tiêu đề dự án */
.campaign-main-title, .info-box-title, .info-list li strong {
    font-weight: 900 !important;
}

.campaign-desc, .entry-content p {
    font-weight: 400 !important;
    line-height: 1.8;
}

/* --- HERO SECTION --- */
.campaign-hero {
    height: 70vh;
    min-height: 500px;
    position: relative;
    display: flex;
    align-items: center;
    overflow: hidden;
    background: #000;
}

.hero-bg { position: absolute; inset: 0; z-index: 1; }
.hero-bg img { width: 100%; height: 100%; object-fit: cover; opacity: 0.7; }
.hero-overlay {
    position: absolute; inset: 0; z-index: 2;
    background: linear-gradient(to top, rgba(15, 23, 42, 0.9) 0%, transparent 100%);
}

.hero-content { position: relative; z-index: 3; color: #fff; max-width: 900px; }

.breadcrumb { font-size: 12px; font-weight: 700; letter-spacing: 1px; margin-bottom: 20px; color: #6366f1; }
.breadcrumb a { color: #fff; text-decoration: none; opacity: 0.7; }

.campaign-main-title { 
    font-size: 4rem; font-weight: 900; text-transform: uppercase; 
    line-height: 1.1; margin-bottom: 25px; 
}

.campaign-meta-top { display: flex; gap: 25px; opacity: 0.8; font-size: 14px; font-weight: 600; }
.meta-item i { margin-right: 8px; color: #ec4899; }

/* --- BODY CONTENT --- */
.campaign-body-wrapper { padding: 100px 0; background: #fff; }
.campaign-flex-layout { display: flex; gap: 60px; }

.campaign-content-main { flex: 1; }
.entry-content { font-size: 1.15rem; line-height: 1.8; color: #334155; }
.entry-content p { margin-bottom: 25px; }
.entry-content img { border-radius: 15px; margin: 20px 0; max-width: 100%; height: auto; }

/* Sidebar */
.campaign-sidebar { flex: 0 0 320px; }
.sticky-sidebar { position: sticky; top: 120px; }

.project-info-box { 
    background: #f8fafc; padding: 30px; border-radius: 20px; 
    border: 1px solid #e2e8f0; margin-bottom: 30px;
}
.info-box-title { font-size: 1rem; font-weight: 900; margin-bottom: 20px; color: #0f172a; }
.info-list { list-style: none; padding: 0; }
.info-list li { 
    display: flex; justify-content: space-between; 
    padding: 12px 0; border-bottom: 1px solid #e2e8f0; font-size: 14px; 
}
.info-list li:last-child { border: none; }
.info-list strong { color: #64748b; }

.back-to-archive {
    display: inline-flex; align-items: center; gap: 10px;
    background: #0f172a; color: #fff; padding: 15px 30px;
    border-radius: 50px; text-decoration: none; font-weight: 800;
    font-size: 12px; margin-top: 50px; transition: 0.3s;
}
.back-to-archive:hover { background: #6366f1; transform: translateY(-3px); }

/* --- RESPONSIVE --- */
@media (max-width: 992px) {
    .campaign-flex-layout { flex-direction: column; }
    .campaign-sidebar { flex: none; width: 100%; }
    .campaign-main-title { font-size: 2.5rem; }
    .campaign-hero { height: 50vh; }
}