/* Valve Modern CSS - Premium Glassmorphic Light Theme 2026 */

@import url('https://fonts.googleapis.com/css2?family=Outfit:wght@300;400;500;600;700;800;900&display=swap');

:root {
    /* Industry Colors - Premium Cyber-Industrial */
    --vp-primary: #3090c7;
    --vp-primary-glow: rgba(48, 144, 199, 0.4);
    --vp-secondary: #0f172a;
    --vp-accent: #00f2ff; /* Cyber Cyan */
    
    /* Light Theme (Default) */
    --vp-bg: #f8fafc;
    --vp-surface: rgba(255, 255, 255, 0.85);
    --vp-text: #0f172a;
    --vp-text-muted: #64748b;
    --vp-border: rgba(48, 144, 199, 0.15);
    --vp-glass-blur: 16px;
    --vp-card-shadow: 0 10px 40px -10px rgba(0,0,0,0.05);
    
    --vp-radius: 20px;
    --vp-transition: 0.4s cubic-bezier(0.23, 1, 0.32, 1);
}
body {
    background-color: var(--vp-bg);
    color: var(--vp-text);
    font-family: 'Outfit', sans-serif;
    overflow-x: hidden !important;
    line-height: 1.6;
}

/* Glass & Depth */
.glass-panel {
    background: var(--vp-surface);
    backdrop-filter: blur(var(--vp-glass-blur));
    -webkit-backdrop-filter: blur(var(--vp-glass-blur));
    border: 1px solid var(--vp-border);
    box-shadow: var(--vp-card-shadow);
    border-radius: var(--vp-radius);
    position: relative;
    overflow: hidden;
}

.glass-panel::before {
    content: '';
    position: absolute;
    top: 0; left: -100%;
    width: 200%; height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255,255,255,0.05), transparent);
    transition: 0.5s;
    pointer-events: none;
}

.glass-panel:hover::before {
    left: 100%;
}

/* Bento Grid System */
.bento-grid {
    display: grid;
    grid-template-columns: auto auto auto;
    gap: 20px;
    padding: 20px 0;
}

@media (max-width: 768px) {
    .bento-grid {
        grid-template-columns: auto auto;
    }
}

.bento-item {
    background: var(--vp-surface);
    border: 1px solid var(--vp-border);
    border-radius: var(--vp-radius);
    padding: 25px;
    transition: var(--vp-transition);
    display: flex;
    flex-direction: column;
    justify-content: center;
}

.bento-item:hover {
    transform: translateY(-5px);
    border-color: var(--vp-primary);
    box-shadow: 0 0 30px var(--vp-primary-glow);
}

.bento-lg { grid-column: span 2; grid-row: span 2; }
.bento-wide { grid-column: span 2; }
.bento-tall { grid-row: span 2; }

/* Technical Blueprint Style */
.blueprint-card {
    position: relative;
    background: var(--vp-bg);
    border: 1px dashed var(--vp-border);
    padding: 30px;
}

.blueprint-card::after {
    content: '+';
    position: absolute;
    color: var(--vp-primary);
    font-size: 20px;
    opacity: 0.5;
}

.blueprint-card.tl::after { top: 5px; left: 5px; }
.blueprint-card.tr::after { top: 5px; right: 5px; }
.blueprint-card.bl::after { bottom: 5px; left: 5px; }
.blueprint-card.br::after { bottom: 5px; right: 5px; }

.blueprint-line {
    position: absolute;
    background: var(--vp-primary);
    opacity: 0.2;
}

/* Immersive Hero Section Styles */
.immersive-hero {
    position: relative;
    padding: 50px 0;
    background: var(--vp-bg);
    overflow-x: hidden;
}

.hero-glow-blob {
    position: absolute;
    top: -10%; right: -5%;
    width: 600px; height: 600px;
    background: radial-gradient(circle, var(--vp-primary-glow) 0%, transparent 70%);
    z-index: 0;
    pointer-events: none;
    filter: blur(40px);
}

.hero-badge-modern {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    background: var(--vp-secondary);
    color: white;
    padding: 8px 16px;
    border-radius: 100px;
    font-size: 0.75rem;
    font-weight: 800;
    letter-spacing: 2px;
    margin-bottom: 2rem;
    border: 1px solid var(--vp-accent);
    box-shadow: 0 0 15px rgba(0, 242, 255, 0.2);
}

.text-accent {
    color: var(--vp-primary);
    position: relative;
}

.kinetic-text {
    font-size: 5rem;
    line-height: 1;
    letter-spacing: -3px;
    font-weight: 900;
}

.glass-text {
    font-size: 1.25rem;
    color: var(--vp-text-muted);
    max-width: 550px;
    margin-bottom: 3rem;
}

/* Cyber Button */
.btn-cyber-primary {
    position: relative;
    display: inline-flex;
    padding: 18px 40px;
    background: var(--vp-primary);
    color: white !important;
    text-decoration: none;
    font-weight: 800;
    letter-spacing: 1px;
    overflow: hidden;
    clip-path: polygon(10% 0, 100% 0, 100% 70%, 90% 100%, 0 100%, 0 30%);
    transition: 0.3s;
}

.btn-cyber-primary:hover {
    transform: scale(1.05);
    background: var(--vp-secondary);
    box-shadow: 0 0 30px var(--vp-primary-glow);
}

.tech-spec-mini {
    display: inline-flex;
    gap: 30px;
}

.spec-node {
    display: flex;
    flex-direction: column;
}

.node-label {
    font-size: 0.65rem;
    font-weight: 800;
    color: var(--vp-text-muted);
    letter-spacing: 1px;
}

.node-value {
    font-size: 1.5rem;
    font-weight: 900;
    color: var(--vp-primary);
}

/* 3D Visual Container */
.hero-3d-container {
    position: relative;
    width: 100%;
}

.tech-circle-orbit {
    position: absolute;
    top: 50%; left: 50%;
    transform: translate(-50%, -50%);
    width: 120%; height: 120%;
    border: 1px dashed var(--vp-border);
    border-radius: 50%;
    animation: rotate 20s linear infinite;
}

@keyframes rotate { from { transform: translate(-50%, -50%) rotate(0deg); } to { transform: translate(-50%, -50%) rotate(360deg); } }

.data-tag {
    position: absolute;
    background: var(--vp-secondary);
    backdrop-filter: blur(10px);
    color: white;
    padding: 8px 20px;
    font-size: 0.8rem;
    font-weight: 800;
    border-left: 4px solid var(--vp-primary);
    border-radius: 4px 12px 12px 4px;
    z-index: 5;
    box-shadow: 0 10px 30px rgba(0,0,0,0.2);
    display: flex;
    align-items: center;
    gap: 10px;
    transition: 0.3s;
}

.data-tag::before {
    content: '';
    width: 8px;
    height: 8px;
    background: var(--vp-primary);
    border-radius: 50%;
    box-shadow: 0 0 10px var(--vp-primary);
}

.data-tag:hover {
    transform: scale(1.05);
    background: var(--vp-primary);
    border-color: white;
}

.data-tag.top-left { top: 10%; left: 0; }
.data-tag.bottom-right { bottom: 10%; right: 0; }

.btn-cyber-outline {
    display: flex;
    align-items: center;
    justify-content: center;
    width: fit-content;
    padding: 12px 30px;
    border: 1px solid var(--vp-primary);
    color: var(--vp-primary);
    text-decoration: none;
    font-weight: 700;
    border-radius: 10px;
    transition: 0.3s;
}

.btn-cyber-outline:hover {
    background: var(--vp-primary);
    color: white !important;
}

/* Theme Toggle */
.theme-toggle-wrapper {
    position: fixed;
    bottom: 30px;
    right: 30px;
    z-index: 9999;
}

.btn-theme-toggle {
    width: 60px;
    height: 60px;
    border-radius: 50%;
    background: var(--vp-secondary);
    color: white;
    border: 1px solid var(--vp-primary);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    cursor: pointer;
    box-shadow: 0 10px 30px rgba(0,0,0,0.3);
    transition: 0.3s;
}

.btn-theme-toggle:hover {
    transform: scale(1.1) rotate(15deg);
    box-shadow: 0 0 20px var(--vp-primary-glow);
}

[data-theme="dark"] .fa-moon::before {
    content: "\f185" !important; /* Sun icon */
    font-family: "Font Awesome 6 Free";
    font-weight: 900;
}

/* Bento Refinements */
.bento-icon { font-size: 1.5rem; color: var(--vp-primary); margin-bottom: 10px; opacity: 0.5; }
.bento-label { font-size: 0.75rem; font-weight: 800; color: var(--vp-text-muted); text-transform: uppercase; }
.bento-value { font-size: 1.1rem; font-weight: 700; color: var(--vp-text); }

/* Feature Items Styling (Mockup Style) */
.hero-feature-item {
    display: flex;
    align-items: center;
    gap: 12px;
    margin-bottom: 12px;
    font-weight: 600;
    color: #334155;
    font-size: 0.95rem;
}

.hero-feature-item i {
    color: #1e293b;
    font-size: 1rem;
}

.hero-main-img {
    max-width: 100%;
    filter: drop-shadow(0 20px 40px rgba(0,0,0,0.1));
    z-index: 2;
    position: relative;
    mix-blend-mode: multiply; /* Removes white background */
    transition: transform 0.8s cubic-bezier(0.34, 1.56, 0.64, 1);
}

.hero-main-img:hover {
    transform: scale(1.05) rotate(2deg);
}

.valve-showcase {
    position: relative;
    padding: 120px 0;
    background-image: url(../images/bg-website.png);
    background-size: contain;
    background-position: center center;
    background-repeat: repeat;
    background-attachment: fixed;
    overflow-x: hidden;
}

/* White Overlay */
.valve-showcase::before {
    content: "";
    position: absolute;
    inset: 0;
    background: rgba(255, 255, 255, 0.60); /* Adjust opacity here */
    z-index: 1;
}

/* Keep content above overlay */
.valve-showcase > * {
    position: relative;
    z-index: 2;
}

.unique-title {
    font-size: 4rem;
    font-weight: 900;
    text-align: center;
    letter-spacing: -2px;
}

.unique-subtitle {
    text-align: center;
    color: var(--vp-text-muted);
    font-size: 1.25rem;
    max-width: 700px;
    margin: 0 auto 80px;
}

.valve-feature-block {
    background: var(--vp-surface);
    backdrop-filter: blur(10px);
    border: 1px solid var(--vp-border);
    border-radius: 40px;
    padding: 60px;
    margin-bottom: 60px;
    transition: var(--vp-transition);
    border: 1px solid rgba(0,0,0,0.05);
}

.valve-feature-block:hover {
    transform: scale(1.02);
    box-shadow: 0 40px 80px rgba(0,0,0,0.08);
}

.feature-category-label {
    display: flex;
    align-items: center;
    gap: 12px;
    color: var(--vp-primary);
    font-weight: 800;
    text-transform: uppercase;
    letter-spacing: 2px;
    font-size: 0.85rem;
    margin-bottom: 15px;
}

.vp-dot {
    width: 8px;
    height: 8px;
    background: var(--vp-primary);
    border-radius: 50%;
    box-shadow: 0 0 10px var(--vp-primary);
}

.feature-title {
    font-size: 3rem;
    font-weight: 800;
    margin-bottom: 5px;
    color: #0f172a;
}

.feature-subtitle {
    font-size: 1.1rem;
    color: var(--vp-primary);
    margin-bottom: 25px;
    font-weight: 700;
    letter-spacing: 1px;
    text-transform: uppercase;
    display: block;
}

.feature-desc {
    font-size: 1.1rem;
    color: var(--vp-text-muted);
    margin-bottom: 40px;
}

.feature-specs-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 20px;
    margin-bottom: 50px;
}

.feature-spec-item {
    display: flex;
    align-items: center;
    gap: 15px;
    background: white;
    padding: 15px 25px;
    border-radius: 18px;
    box-shadow: 0 4px 10px rgba(0,0,0,0.03);
    border: 1px solid #f1f5f9;
}

.feature-spec-item i {
    color: var(--vp-primary);
    font-size: 1.2rem;
}

.feature-spec-item span {
    font-weight: 600;
    font-size: 0.95rem;
}

.valve-feature-visual {
    background: radial-gradient(circle at center, #f0f9ff 0%, #ffffff 100%);
    border-radius: 30px;
    padding: 50px;
    position: relative;
    overflow: hidden;
}

.feature-img {
    max-width: 100%;
    filter: drop-shadow(0 20px 40px rgba(0,0,0,0.1));
    transition: transform 0.6s cubic-bezier(0.34, 1.56, 0.64, 1);
}

.valve-feature-block:hover .feature-img {
    transform: scale(1.1) rotate(5deg);
}

.btn-feature-enquire {
    background: #0f172a;
    color: white;
    padding: 18px 40px;
    border-radius: 14px;
    font-weight: 700;
    text-decoration: none;
    display: inline-flex;
    align-items: center;
    gap: 12px;
    transition: var(--vp-transition);
}

.btn-feature-enquire:hover {
    background: var(--vp-primary);
    transform: translateY(-3px);
    color: white;
}

.btn-explore-more {
    color: var(--vp-text);
    font-weight: 700;
    text-decoration: none;
    display: inline-flex;
    align-items: center;
    gap: 10px;
    transition: var(--vp-transition);
}

.btn-explore-more:hover {
    color: var(--vp-primary);
    gap: 15px;
}

/* ================================
   Valve Filter Buttons - Modern Design
   ================================ */

.valve-filter-container {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 0.75rem;
    margin-bottom: 3rem;
    padding: 1.5rem 2rem;
    background: var(--vp-surface);
    backdrop-filter: blur(var(--vp-glass-blur));
    -webkit-backdrop-filter: blur(var(--vp-glass-blur));
    border-radius: 25px;
    border: 1px solid var(--vp-border);
    box-shadow: 0 10px 40px -10px rgba(48, 144, 199, 0.1);
}

.valve-filter-btn {
    padding: 0.75rem 1.5rem;
    border: 2px solid transparent;
    border-radius: 50px;
    background: rgba(255, 255, 255, 0.9);
    color: var(--vp-text);
    font-family: 'Outfit', sans-serif;
    font-weight: 600;
    font-size: 0.9rem;
    cursor: pointer;
    transition: var(--vp-transition);
    position: relative;
    overflow: hidden;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.05);
}

.valve-filter-btn::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.4), transparent);
    transition: 0.5s;
}

.valve-filter-btn:hover::before {
    left: 100%;
}

.valve-filter-btn:hover {
    border-color: var(--vp-primary);
    transform: translateY(-2px);
    box-shadow: 0 8px 25px rgba(48, 144, 199, 0.2);
}

.valve-filter-btn.active {
    background: linear-gradient(135deg, var(--vp-primary) 0%, #00b4d8 100%);
    color: #fff;
    border-color: transparent;
    box-shadow: 0 8px 25px rgba(48, 144, 199, 0.35);
    transform: translateY(-2px);
}

.valve-filter-btn i {
    margin-right: 0.5rem;
    font-size: 0.85rem;
}

.valve-filter-btn.active i {
    animation: pulse-icon 1.5s ease-in-out infinite;
}

@keyframes pulse-icon {
    0%, 100% { transform: scale(1); }
    50% { transform: scale(1.2); }
}

/* Unique Header for Valve Section */
.unique-header-wrapper {
    margin-bottom: 2rem;
}

.unique-underline {
    width: 100px;
    height: 4px;
    background: linear-gradient(90deg, var(--vp-primary), #00b4d8, var(--vp-primary));
    background-size: 200% 100%;
    margin: 20px auto 0;
    border-radius: 2px;
    animation: gradient-flow 3s linear infinite;
}

@keyframes gradient-flow {
    0% { background-position: 0% 50%; }
    100% { background-position: 200% 50%; }
}

/* Filter animations for product cards */
.product-card-3d.valve-hidden {
    opacity: 0;
    transform: scale(0.9);
    pointer-events: none;
    height: 0;
    margin: 0;
    padding: 0;
    overflow: hidden;
}

.product-card-3d.valve-visible {
    opacity: 1;
    transform: scale(1);
    transition: all 0.4s cubic-bezier(0.23, 1, 0.32, 1);
}

/* Mobile Adjustments */
@media (max-width: 992px) {
    .immersive-hero {padding: 60px 0;}
    .hero-title { font-size: 3.5rem; }
    .valve-header-strip { display: none; }
    .valve-feature-block { padding: 40px 20px; margin-bottom: 0px; }
    .feature-title { font-size: 2.2rem; }
    .feature-specs-grid { grid-template-columns: 1fr; }
    .tech-circle-orbit { display: none; }
    
    .valve-filter-container {
        padding: 1rem;
        gap: 0.5rem;
    }
    
    .valve-filter-btn {
        padding: 0.6rem 1rem;
        font-size: 0.8rem;
    }
    
    .valve-filter-btn i {
        display: none;
    }
}