/* ==========================================================================
   MMD RUSSIA STEEL – BROCHURE PAGE STYLES (css/brochure.css)
   Clean corporate styling for technical brochure download & preview
   ========================================================================== */

/* ─── BROCHURE HERO SECTION ─────────────────────────────────────── */
.brochure-hero {
    position: relative;
    background: linear-gradient(135deg, #070d18 0%, #0f1c33 60%, #172a4a 100%);
    padding: 70px 0 60px;
    color: #ffffff;
    overflow: hidden;
}

.brochure-hero::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: 
        radial-gradient(circle at 80% 20%, rgba(0, 91, 181, 0.18) 0%, transparent 40%),
        radial-gradient(circle at 20% 80%, rgba(14, 165, 233, 0.12) 0%, transparent 40%);
    pointer-events: none;
}

.brochure-hero-content {
    position: relative;
    z-index: 2;
    max-width: 850px;
}

.brochure-breadcrumb {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 0.85rem;
    font-weight: 600;
    letter-spacing: 0.08em;
    text-transform: uppercase;
    color: #38bdf8;
    margin-bottom: 16px;
}

.brochure-breadcrumb a {
    color: #94a3b8;
    text-decoration: none;
    transition: color 0.2s ease;
}

.brochure-breadcrumb a:hover {
    color: #ffffff;
}

.brochure-main-title {
    font-family: var(--font-heading);
    font-size: clamp(2.6rem, 4.5vw, 3.8rem);
    font-weight: 800;
    letter-spacing: 0.06em;
    text-transform: uppercase;
    color: #ffffff;
    line-height: 1.1;
    margin-bottom: 16px;
    text-shadow: 0 4px 20px rgba(0, 0, 0, 0.4);
}

.brochure-hero-desc {
    font-size: 1.1rem;
    line-height: 1.8;
    color: #cbd5e1;
    max-width: 750px;
}

/* ─── MAIN DOWNLOAD SECTION ─────────────────────────────────────── */
.brochure-main-section {
    padding: 80px 0;
    background-color: #ffffff;
}

.brochure-container {
    max-width: 1050px;
    margin: 0 auto;
    padding: 0 24px;
}

.brochure-info-box {
    text-align: left;
    margin-bottom: 40px;
}

.brochure-lead-text {
    font-size: 1.25rem;
    line-height: 1.8;
    color: #475569;
    font-weight: 400;
    margin-bottom: 35px;
}

.brochure-download-banner {
    display: block;
    width: 100%;
}

.btn-brochure-download {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 14px;
    width: 100%;
    background: linear-gradient(135deg, var(--rs-primary) 0%, #004892 100%);
    color: #ffffff;
    font-size: 1.25rem;
    font-weight: 800;
    letter-spacing: 0.1em;
    text-transform: uppercase;
    padding: 22px 30px;
    border-radius: var(--radius-md);
    box-shadow: 0 8px 24px var(--rs-primary-glow);
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    border: 1px solid rgba(255, 255, 255, 0.2);
    text-decoration: none;
    cursor: pointer;
}

.btn-brochure-download i {
    font-size: 1.35rem;
    transition: transform 0.2s ease;
}

.btn-brochure-download:hover {
    background: linear-gradient(135deg, #006adc 0%, #004080 100%);
    box-shadow: 0 12px 32px rgba(0, 91, 181, 0.45);
    transform: translateY(-3px);
    color: #ffffff;
}

.btn-brochure-download:hover i {
    transform: translateY(3px);
}

/* ─── WHAT'S INSIDE HIGHLIGHTS ──────────────────────────────────── */
.brochure-highlights-section {
    padding: 60px 0 90px;
    background-color: var(--rs-light-bg);
    border-top: 1px solid var(--rs-border-light);
}

.section-heading-wrapper {
    text-align: center;
    margin-bottom: 50px;
}

.section-tag {
    display: inline-block;
    color: var(--rs-primary);
    font-size: 0.8rem;
    font-weight: 800;
    letter-spacing: 0.1em;
    text-transform: uppercase;
    margin-bottom: 8px;
}

.section-title {
    font-family: var(--font-heading);
    font-size: 2.2rem;
    font-weight: 800;
    color: var(--rs-text-primary);
}

.highlights-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 24px;
}

.highlight-card {
    background: #ffffff;
    border: 1px solid var(--rs-border-light);
    border-radius: var(--radius-lg);
    padding: 30px 24px;
    box-shadow: var(--shadow-sm);
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    display: flex;
    flex-direction: column;
}

.highlight-card:hover {
    transform: translateY(-6px);
    box-shadow: var(--shadow-lg);
    border-color: var(--rs-primary);
}

.highlight-icon-box {
    width: 54px;
    height: 54px;
    border-radius: var(--radius-md);
    background: var(--rs-primary-light);
    color: var(--rs-primary);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.4rem;
    margin-bottom: 20px;
}

.highlight-card h3 {
    font-size: 1.15rem;
    font-weight: 700;
    color: var(--rs-text-primary);
    margin-bottom: 10px;
}

.highlight-card p {
    font-size: 0.9rem;
    color: var(--rs-text-secondary);
    line-height: 1.6;
}

/* ─── SPECIFICATIONS SUMMARY BOX ────────────────────────────────── */
.brochure-meta-card {
    margin-top: 50px;
    background: #0b1526;
    color: #ffffff;
    border-radius: var(--radius-lg);
    padding: 35px 40px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 30px;
    box-shadow: 0 12px 30px rgba(11, 21, 38, 0.25);
}

.meta-details {
    display: flex;
    gap: 40px;
}

.meta-item strong {
    display: block;
    font-size: 0.8rem;
    text-transform: uppercase;
    letter-spacing: 0.08em;
    color: #94a3b8;
    margin-bottom: 4px;
}

.meta-item span {
    font-size: 1.05rem;
    font-weight: 700;
    color: #38bdf8;
}

.meta-action .btn-cta-secondary {
    white-space: nowrap;
}

/* ─── RESPONSIVE BREAKPOINTS ─────────────────────────────────────── */
@media (max-width: 992px) {
    .highlights-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .brochure-meta-card {
        flex-direction: column;
        align-items: flex-start;
    }
}

@media (max-width: 600px) {
    .highlights-grid {
        grid-template-columns: 1fr;
    }
    
    .btn-brochure-download {
        font-size: 1.05rem;
        padding: 18px 20px;
    }
    
    .brochure-lead-text {
        font-size: 1.05rem;
    }

    .meta-details {
        flex-direction: column;
        gap: 16px;
    }
}