/* =========================================
   GASKETS PAGE STYLES (INDUSTRIAL PREMIUM)
   ========================================= */

/* --- 1. HERO SECTION --- */
.gasket-hero {
    position: relative;
    background: linear-gradient(135deg, var(--primary) 0%, #020617 100%);
    padding: 120px 0 80px;
    text-align: center;
    color: white;
    margin-top: var(--nav-height);
    overflow: hidden;
}

.hero-tech-bg {
    position: absolute; inset: 0; opacity: 0.15; z-index: 0;
    background-image: radial-gradient(circle at 50% 50%, rgba(249, 115, 22, 0.4), transparent 35%),
                      linear-gradient(to right, #ffffff 1px, transparent 1px), 
                      linear-gradient(to bottom, #ffffff 1px, transparent 1px);
    background-size: 100% 100%, 30px 30px, 30px 30px;
}

.hero-overlay { position: absolute; inset: 0; background: linear-gradient(to top, var(--bg-body), transparent); z-index: 1;}
.hero-content { position: relative; z-index: 2; max-width: 900px; margin: 0 auto; }

.hero-badge {
    display: inline-block; padding: 6px 15px; border: 1px solid var(--secondary);
    color: var(--secondary); border-radius: 30px; font-weight: 700; text-transform: uppercase;
    font-size: 0.85rem; background: rgba(249,115,22,0.1); letter-spacing: 1px; margin-bottom: 20px;
}

.gasket-hero h1 { font-family: 'Oswald', sans-serif; font-size: 3.8rem; margin-bottom: 20px; color: #fff; letter-spacing: 1px;}
.gasket-hero h1 .text-highlight { color: var(--secondary); }
.gasket-hero p { font-size: 1.15rem; color: #cbd5e1; line-height: 1.7; margin-bottom: 40px; }

/* Hero Features */
.hero-features { display: flex; flex-wrap: wrap; justify-content: center; gap: 20px; }
.feature-item {
    display: flex; align-items: center; gap: 8px; font-size: 0.95rem; font-weight: 600;
    background: rgba(255,255,255,0.05); padding: 10px 20px; border-radius: 50px;
    border: 1px solid rgba(255,255,255,0.1); color: #f8fafc; backdrop-filter: blur(5px);
}
.feature-item svg { width: 18px; height: 18px; color: #4ade80; }

/* --- SHARED STYLES --- */
.section-title { text-align: center; margin-bottom: 50px; }
.section-title h2 { font-family: 'Oswald', sans-serif; font-size: 2.5rem; color: var(--primary); margin-bottom: 10px; }
.section-title p { color: var(--text-muted); font-size: 1.1rem; }
.glass-panel { background: var(--bg-card); border: 1px solid var(--border); border-radius: 16px; box-shadow: 0 10px 30px rgba(0,0,0,0.03); }

/* --- 2. CATALOG GRID --- */
.gasket-catalog { padding: 80px 0; background: var(--bg-body); }
.catalog-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(320px, 1fr)); gap: 40px; }

.catalog-card {
    background: var(--bg-card); border: 1px solid var(--border); border-radius: 12px;
    overflow: hidden; transition: 0.4s cubic-bezier(0.25, 1, 0.5, 1);
    display: flex; flex-direction: column; box-shadow: 0 4px 15px rgba(0,0,0,0.02);
}
.catalog-card:hover { transform: translateY(-10px); border-color: var(--secondary); box-shadow: 0 20px 40px rgba(249,115,22,0.1); }

.card-img { position: relative; height: 220px; width: 100%; background: #f8fafc; overflow: hidden; }
.card-img img { width: 100%; height: 100%; object-fit: cover; transition: 0.5s ease; mix-blend-mode: multiply;}
body.dark-mode .card-img { background: #0f172a; }
body.dark-mode .card-img img { mix-blend-mode: lighten; }
.catalog-card:hover .card-img img { transform: scale(1.08); }

.card-icon {
    position: absolute; bottom: 15px; right: 15px; width: 45px; height: 45px;
    background: rgba(2,6,23,0.8); color: var(--secondary); border-radius: 10px;
    display: flex; align-items: center; justify-content: center; backdrop-filter: blur(5px);
    border: 1px solid rgba(255,255,255,0.1); z-index: 2;
}
.card-icon svg { width: 22px; height: 22px; }

.card-body { padding: 30px; flex-grow: 1; display: flex; flex-direction: column; }
.card-body h3 { font-family: 'Oswald', sans-serif; font-size: 1.6rem; color: var(--primary); margin-bottom: 5px; }
.sub-title { font-size: 0.9rem; color: var(--text-muted); font-style: italic; margin-bottom: 20px; display: block; }

.spec-list { list-style: none; padding: 0; margin-bottom: 25px; flex-grow: 1; border-top: 1px dashed var(--border); padding-top: 20px;}
.spec-list li { font-size: 0.95rem; color: var(--text-main); margin-bottom: 12px; display: flex; align-items: flex-start; line-height: 1.5; }
.spec-list li span { font-weight: 700; color: var(--text-muted); min-width: 90px; display: inline-block; text-transform: uppercase; font-size: 0.8rem;}

.best-for {
    background: var(--bg-body); padding: 15px; border-radius: 8px; border-left: 4px solid var(--secondary);
    font-size: 0.9rem; color: var(--text-main); line-height: 1.6;
}
.best-for strong { color: var(--secondary); display: block; margin-bottom: 4px;}

/* --- 3. TIMELINE (SELECTION GUIDE) --- */
.selection-guide { padding: 40px 0 80px; background: var(--bg-body); }
.selection-box { padding: 50px; }

.timeline { display: grid; grid-template-columns: repeat(auto-fit, minmax(280px, 1fr)); gap: 30px; }
.tl-item { display: flex; gap: 20px; align-items: flex-start; }
.tl-num {
    font-family: 'Oswald', sans-serif; font-size: 2rem; color: rgba(249,115,22,0.2); 
    font-weight: 700; line-height: 1; min-width: 45px;
}
.tl-content h4 { color: var(--primary); font-size: 1.2rem; margin-bottom: 10px; font-family: 'Oswald', sans-serif;}
.tl-content p { color: var(--text-muted); font-size: 0.95rem; line-height: 1.6; }

/* --- 4. COMPARISON TABLE --- */
.comparison-section { padding: 40px 0 80px; background: var(--bg-body); }
.table-card { padding: 0; overflow: hidden; }
.table-responsive { overflow-x: auto; }

.data-table { width: 100%; border-collapse: collapse; text-align: left; }
.data-table th { background: rgba(0,0,0,0.02); padding: 18px 25px; color: var(--text-muted); font-weight: 700; font-size: 0.9rem; text-transform: uppercase; border-bottom: 2px solid var(--border); white-space: nowrap; }
body.dark-mode .data-table th { background: rgba(255,255,255,0.02); }
.data-table td { padding: 18px 25px; border-bottom: 1px solid var(--border); color: var(--text-main); font-size: 0.95rem; vertical-align: middle; }
.data-table tbody tr:hover { background: rgba(249,115,22,0.03); }
.data-table td strong { color: var(--primary); font-size: 1.05rem; }

/* --- 5. APPLICATION INDUSTRIES --- */
.industries-section { padding: 40px 0 100px; background: var(--bg-body); }
.industry-grid { display: flex; flex-wrap: wrap; justify-content: center; gap: 15px; }

.ind-pill {
    display: flex; align-items: center; gap: 10px; background: var(--bg-card);
    border: 1px solid var(--border); padding: 12px 25px; border-radius: 50px;
    font-weight: 700; font-size: 0.95rem; color: var(--text-muted); transition: 0.3s; 
}
.ind-pill svg { width: 20px; height: 20px; color: var(--secondary); transition: 0.3s; }
.ind-pill:hover { transform: translateY(-3px); border-color: var(--secondary); color: var(--primary); box-shadow: 0 10px 20px rgba(249,115,22,0.1); }
.ind-pill:hover svg { transform: scale(1.1); }

/* Animations */
.reveal-on-scroll { opacity: 0; transform: translateY(30px); transition: all 0.8s cubic-bezier(0.25, 1, 0.5, 1); }
.reveal-on-scroll.active { opacity: 1; transform: translateY(0); }
.delay-1 { transition-delay: 0.1s; }
.delay-2 { transition-delay: 0.2s; }
.delay-3 { transition-delay: 0.3s; }

/* Responsive */
@media (max-width: 992px) {
    .gasket-hero h1 { font-size: 2.8rem; }
    .catalog-grid { grid-template-columns: 1fr; }
    .hero-features { flex-direction: column; align-items: center; }
    .selection-box { padding: 30px 20px; }
}