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

/* ==========================================
   CSS Variables & Design Tokens (Light Theme)
   ========================================== */
:root {
    --bg-main: #ffffff;
    --bg-section-alt: #f8fafc; /* Slate 50 */
    --bg-card: #ffffff;
    --bg-card-hover: #f1f5f9; /* Slate 100 */
    --accent: #ea580c; /* Professional Industrial Orange */
    --accent-hover: #c2410c;
    --accent-rgb: 234, 88, 12;
    --primary-blue: #0f172a; /* Deep Slate Blue / Black for primary branding */
    --primary-blue-hover: #1e293b;
    --text-primary: #0f172a; /* Slate 900 */
    --text-secondary: #475569; /* Slate 600 */
    --text-muted: #64748b; /* Slate 500 */
    --border-color: #e2e8f0; /* Slate 200 */
    --border-hover: #cbd5e1; /* Slate 300 */
    --glass-bg: rgba(255, 255, 255, 0.85);
    --glass-border: rgba(15, 23, 42, 0.06);
    --shadow-sm: 0 1px 3px rgba(15, 23, 42, 0.05);
    --shadow-md: 0 4px 20px -2px rgba(15, 23, 42, 0.06), 0 2px 8px -1px rgba(15, 23, 42, 0.03);
    --shadow-lg: 0 16px 40px -4px rgba(15, 23, 42, 0.08), 0 4px 16px -2px rgba(15, 23, 42, 0.04);
    --shadow-accent: 0 0 25px rgba(234, 88, 12, 0.15);
    --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    --font-heading: 'Space Grotesk', sans-serif;
    --font-body: 'Outfit', sans-serif;
}

/* ==========================================
   Reset & Base Styles
   ========================================== */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    scroll-behavior: smooth;
}

body {
    background-color: var(--bg-main);
    color: var(--text-primary);
    font-family: var(--font-body);
    line-height: 1.6;
    overflow-x: hidden;
    position: relative;
}

/* Fine Technical Grid Lines on Light Theme */
body::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-image: 
        radial-gradient(circle at 10% 20%, rgba(234, 88, 12, 0.02) 0%, transparent 40%),
        radial-gradient(circle at 90% 80%, rgba(234, 88, 12, 0.015) 0%, transparent 40%),
        linear-gradient(rgba(15, 23, 42, 0.015) 1px, transparent 1px),
        linear-gradient(90deg, rgba(15, 23, 42, 0.015) 1px, transparent 1px);
    background-size: 100% 100%, 100% 100%, 48px 48px, 48px 48px;
    z-index: -2;
}

h1, h2, h3, h4, h5, h6 {
    font-family: var(--font-heading);
    font-weight: 700;
    letter-spacing: -0.01em;
    color: var(--primary-blue);
}

a {
    color: inherit;
    text-decoration: none;
    transition: var(--transition);
}

ul {
    list-style: none;
}

img {
    max-width: 100%;
    height: auto;
    display: block;
}

button, input, select, textarea {
    font-family: inherit;
    background: none;
    border: none;
    outline: none;
    color: inherit;
}

/* Custom Scrollbar */
::-webkit-scrollbar {
    width: 8px;
}
::-webkit-scrollbar-track {
    background: var(--bg-section-alt);
}
::-webkit-scrollbar-thumb {
    background: #cbd5e1;
    border-radius: 4px;
}
::-webkit-scrollbar-thumb:hover {
    background: var(--accent);
}

/* ==========================================
   Reusable Layout Components
   ========================================== */
.container {
    width: 100%;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 1.5rem;
}

.section {
    padding: 6rem 0;
    position: relative;
}

.section-alt {
    background-color: var(--bg-section-alt);
    border-top: 1px solid var(--border-color);
    border-bottom: 1px solid var(--border-color);
}

.section-header {
    text-align: center;
    max-width: 700px;
    margin: 0 auto 4.5rem auto;
}

.section-subtitle {
    font-family: var(--font-heading);
    color: var(--accent);
    text-transform: uppercase;
    font-weight: 600;
    font-size: 0.85rem;
    letter-spacing: 0.15em;
    display: inline-block;
    margin-bottom: 0.75rem;
    position: relative;
    padding-left: 1.5rem;
}

.section-subtitle::before {
    content: '';
    position: absolute;
    left: 0;
    top: 50%;
    transform: translateY(-50%);
    width: 0.75rem;
    height: 2px;
    background-color: var(--accent);
}

.section-title {
    font-size: 2.25rem;
    line-height: 1.25;
    margin-bottom: 1rem;
    color: var(--primary-blue);
}

.section-desc {
    color: var(--text-secondary);
    font-size: 1.05rem;
}

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 0.75rem 1.75rem;
    font-weight: 600;
    border-radius: 6px;
    transition: var(--transition);
    cursor: pointer;
    font-family: var(--font-heading);
    gap: 0.5rem;
    font-size: 0.95rem;
}

.btn-primary {
    background-color: var(--primary-blue);
    color: #ffffff;
    box-shadow: 0 2px 8px rgba(15, 23, 42, 0.1);
}

.btn-primary:hover {
    background-color: var(--accent);
    color: #ffffff;
    box-shadow: var(--shadow-accent);
    transform: translateY(-1px);
}

.btn-secondary {
    background-color: #ffffff;
    color: var(--text-primary);
    border: 1px solid var(--border-color);
    box-shadow: var(--shadow-sm);
}

.btn-secondary:hover {
    background-color: var(--bg-section-alt);
    border-color: var(--text-muted);
    transform: translateY(-1px);
}

.btn-accent {
    background-color: var(--accent);
    color: #ffffff;
    box-shadow: 0 4px 12px rgba(234, 88, 12, 0.2);
}

.btn-accent:hover {
    background-color: var(--accent-hover);
    box-shadow: var(--shadow-accent);
    transform: translateY(-1px);
}

.gradient-text {
    background: linear-gradient(135deg, var(--primary-blue) 40%, var(--accent) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

/* ==========================================
   Header & Navigation
   ========================================== */
.header {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    z-index: 1000;
    transition: var(--transition);
    padding: 1.25rem 0;
    background-color: transparent;
}

.header.scrolled {
    padding: 0.85rem 0;
    background-color: var(--glass-bg);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid var(--glass-border);
    box-shadow: var(--shadow-sm);
}

.nav-wrapper {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo {
    display: flex;
    align-items: center;
    gap: 0.65rem;
    font-family: var(--font-heading);
    font-size: 1.35rem;
    font-weight: 700;
    color: var(--primary-blue);
}

.logo span {
    color: var(--accent);
    font-weight: 500;
}

.logo-icon {
    width: 28px;
    height: 28px;
    background: linear-gradient(135deg, var(--accent) 0%, #f97316 100%);
    clip-path: polygon(25% 0%, 75% 0%, 100% 50%, 75% 100%, 25% 100%, 0% 50%);
    position: relative;
}

.logo-icon::after {
    content: '';
    position: absolute;
    top: 3px;
    left: 3px;
    right: 3px;
    bottom: 3px;
    background-color: var(--bg-main);
    clip-path: polygon(25% 0%, 75% 0%, 100% 50%, 75% 100%, 25% 100%, 0% 50%);
}

.logo-icon::before {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%) rotate(45deg);
    width: 5px;
    height: 14px;
    background-color: var(--accent);
}

.nav-menu {
    display: flex;
    align-items: center;
    gap: 2rem;
}

.nav-link {
    font-weight: 600;
    color: var(--text-secondary);
    font-size: 0.95rem;
    position: relative;
    padding: 0.4rem 0;
}

.nav-link:hover, .nav-link.active {
    color: var(--accent);
}

.nav-link::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 0;
    height: 2px;
    background-color: var(--accent);
    transition: var(--transition);
}

.nav-link:hover::after, .nav-link.active::after {
    width: 100%;
}

.menu-toggle {
    display: none;
    flex-direction: column;
    gap: 5px;
    cursor: pointer;
    z-index: 1001;
}

.menu-toggle span {
    width: 22px;
    height: 2px;
    background-color: var(--primary-blue);
    transition: var(--transition);
}

/* Page Banner (for secondary pages) */
.page-banner {
    background-color: var(--bg-section-alt);
    border-bottom: 1px solid var(--border-color);
    padding: 8rem 0 4rem 0;
    text-align: center;
}

.page-banner-title {
    font-size: 2.75rem;
    margin-bottom: 0.75rem;
}

.page-banner-crumbs {
    font-size: 0.9rem;
    color: var(--text-muted);
    font-weight: 500;
}

.page-banner-crumbs a:hover {
    color: var(--accent);
}

/* ==========================================
   Home Page: Hero Section
   ========================================== */
.hero {
    min-height: 90vh;
    display: flex;
    align-items: center;
    padding-top: 7rem;
    position: relative;
}

.hero-grid {
    display: grid;
    grid-template-columns: 1.1fr 0.9fr;
    gap: 3rem;
    align-items: center;
}

.hero-badge {
    background-color: rgba(234, 88, 12, 0.07);
    border: 1px solid rgba(234, 88, 12, 0.15);
    color: var(--accent);
    padding: 0.4rem 1.1rem;
    border-radius: 50px;
    font-family: var(--font-heading);
    font-size: 0.8rem;
    font-weight: 600;
    letter-spacing: 0.05em;
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    margin-bottom: 1.5rem;
}

.hero-badge span {
    width: 6px;
    height: 6px;
    background-color: var(--accent);
    border-radius: 50%;
    animation: pulse 2s infinite;
}

@keyframes pulse {
    0% { transform: scale(0.9); opacity: 0.6; }
    50% { transform: scale(1.3); opacity: 1; }
    100% { transform: scale(0.9); opacity: 0.6; }
}

.hero-title {
    font-size: 3.25rem;
    line-height: 1.15;
    margin-bottom: 1.25rem;
    font-weight: 800;
}

.hero-desc {
    color: var(--text-secondary);
    font-size: 1.1rem;
    margin-bottom: 2rem;
    max-width: 540px;
}

.hero-ctas {
    display: flex;
    gap: 1rem;
    margin-bottom: 3.5rem;
}

.hero-stats {
    display: flex;
    gap: 3rem;
    border-top: 1px solid var(--border-color);
    padding-top: 1.75rem;
}

.stat-item h3 {
    font-size: 2rem;
    color: var(--primary-blue);
    margin-bottom: 0.15rem;
}

.stat-item h3 span {
    color: var(--accent);
}

.stat-item p {
    color: var(--text-muted);
    font-size: 0.85rem;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    font-weight: 600;
}

.hero-image-wrapper {
    position: relative;
    border-radius: 12px;
    overflow: hidden;
    box-shadow: var(--shadow-lg);
    border: 1px solid var(--border-color);
}

.hero-image-wrapper::after {
    content: '';
    position: absolute;
    inset: 0;
    background: linear-gradient(to bottom, transparent 60%, rgba(15, 23, 42, 0.4) 100%);
}

.hero-image {
    width: 100%;
    height: 440px;
    object-fit: cover;
}

.hero-floating-card {
    position: absolute;
    bottom: 1.5rem;
    left: -1.5rem;
    background-color: var(--glass-bg);
    backdrop-filter: blur(10px);
    border: 1px solid var(--glass-border);
    padding: 1.25rem;
    border-radius: 8px;
    display: flex;
    align-items: center;
    gap: 0.85rem;
    box-shadow: var(--shadow-md);
    max-width: 250px;
    animation: float 6s ease-in-out infinite;
}

@keyframes float {
    0%, 100% { transform: translateY(0); }
    50% { transform: translateY(-8px); }
}

.floating-icon {
    width: 40px;
    height: 40px;
    border-radius: 6px;
    background-color: rgba(234, 88, 12, 0.1);
    color: var(--accent);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.25rem;
}

.floating-info h4 {
    font-size: 0.95rem;
    margin-bottom: 0.1rem;
}

.floating-info p {
    color: var(--text-secondary);
    font-size: 0.8rem;
}

/* ==========================================
   Home Page: About Summary
   ========================================== */
.about-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
    align-items: center;
}

.about-features {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 1.5rem;
    margin-top: 2rem;
}

.about-feat-item {
    background-color: var(--bg-section-alt);
    border: 1px solid var(--border-color);
    padding: 1.5rem;
    border-radius: 8px;
}

.about-feat-icon {
    font-size: 1.5rem;
    color: var(--accent);
    margin-bottom: 0.75rem;
}

.about-feat-item h4 {
    font-size: 1.05rem;
    margin-bottom: 0.4rem;
}

.about-feat-item p {
    font-size: 0.85rem;
    color: var(--text-secondary);
}

/* ==========================================
   Services Page
   ========================================== */
.services-list-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 2.5rem;
}

.service-item-card {
    background-color: #ffffff;
    border: 1px solid var(--border-color);
    border-radius: 12px;
    padding: 3rem;
    box-shadow: var(--shadow-sm);
    transition: var(--transition);
}

.service-item-card:hover {
    border-color: var(--accent);
    box-shadow: var(--shadow-md);
    transform: translateY(-3px);
}

.service-item-icon {
    width: 60px;
    height: 60px;
    background-color: rgba(234, 88, 12, 0.06);
    color: var(--accent);
    border-radius: 10px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.8rem;
    margin-bottom: 2rem;
}

.service-item-title {
    font-size: 1.5rem;
    margin-bottom: 1rem;
}

.service-item-desc {
    color: var(--text-secondary);
    font-size: 0.95rem;
    margin-bottom: 1.5rem;
}

.service-item-specs-list {
    border-top: 1px solid var(--border-color);
    padding-top: 1.5rem;
}

.service-spec-row {
    display: flex;
    justify-content: space-between;
    margin-bottom: 0.65rem;
    font-size: 0.9rem;
}

.service-spec-lbl {
    color: var(--text-muted);
    font-weight: 500;
}

.service-spec-val {
    font-weight: 600;
    color: var(--primary-blue);
}

/* ==========================================
   Calculator Page
   ========================================== */
.calc-layout {
    display: grid;
    grid-template-columns: 1.2fr 0.8fr;
    gap: 3rem;
    background-color: #ffffff;
    border: 1px solid var(--border-color);
    border-radius: 16px;
    padding: 3rem;
    box-shadow: var(--shadow-md);
}

.calc-panel-form {
    display: flex;
    flex-direction: column;
    gap: 1.75rem;
}

.calc-tabs-row {
    display: flex;
    background-color: var(--bg-section-alt);
    border: 1px solid var(--border-color);
    padding: 0.35rem;
    border-radius: 8px;
    gap: 0.25rem;
}

.calc-tab-option {
    flex: 1;
    text-align: center;
    padding: 0.65rem;
    font-weight: 600;
    font-size: 0.9rem;
    color: var(--text-secondary);
    border-radius: 5px;
    cursor: pointer;
    transition: var(--transition);
}

.calc-tab-option.active, .calc-tab-option:hover {
    background-color: var(--primary-blue);
    color: #ffffff;
}

.calc-inputs-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 1.25rem;
}

.calc-field-group {
    display: flex;
    flex-direction: column;
    gap: 0.4rem;
}

.calc-field-full {
    grid-column: span 2;
}

.calc-field-label {
    font-size: 0.85rem;
    font-weight: 600;
    color: var(--text-secondary);
}

.calc-field-wrapper {
    position: relative;
    display: flex;
    align-items: center;
}

.calc-txt-input {
    width: 100%;
    background-color: var(--bg-section-alt);
    border: 1px solid var(--border-color);
    padding: 0.75rem 1rem;
    border-radius: 6px;
    font-size: 1rem;
    font-weight: 500;
    transition: var(--transition);
}

.calc-txt-input:focus {
    border-color: var(--accent);
    background-color: #ffffff;
    box-shadow: 0 0 0 3px rgba(234, 88, 12, 0.1);
}

.calc-txt-unit {
    position: absolute;
    right: 1rem;
    font-size: 0.8rem;
    font-weight: 600;
    color: var(--text-muted);
}

.calc-dropdown {
    width: 100%;
    background-color: var(--bg-section-alt);
    border: 1px solid var(--border-color);
    padding: 0.75rem 1.25rem;
    border-radius: 6px;
    font-size: 1rem;
    font-weight: 500;
    cursor: pointer;
    appearance: none;
    -webkit-appearance: none;
}

.calc-dropdown-container {
    position: relative;
}

.calc-dropdown-container::after {
    content: '▼';
    font-size: 0.75rem;
    color: var(--text-secondary);
    position: absolute;
    right: 1rem;
    top: 50%;
    transform: translateY(-50%);
    pointer-events: none;
}

.calc-panel-results {
    background-color: var(--bg-section-alt);
    border: 1px solid var(--border-color);
    border-radius: 12px;
    padding: 2.5rem;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    text-align: center;
}

.calc-res-lbl {
    font-size: 0.85rem;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 0.05em;
    font-weight: 700;
    margin-bottom: 1rem;
}

.calc-res-value-box {
    margin-bottom: 1.75rem;
}

.calc-res-number {
    font-size: 3.5rem;
    font-family: var(--font-heading);
    font-weight: 700;
    color: var(--accent);
}

.calc-res-unit {
    font-size: 1.25rem;
    font-weight: 600;
    color: var(--primary-blue);
    margin-left: 0.15rem;
}

.calc-res-breakdown {
    width: 100%;
    border-top: 1px solid var(--border-color);
    padding-top: 1.5rem;
    display: flex;
    flex-direction: column;
    gap: 0.85rem;
}

.breakdown-row {
    display: flex;
    justify-content: space-between;
    font-size: 0.9rem;
}

.breakdown-lbl {
    color: var(--text-secondary);
}

.breakdown-val {
    font-weight: 600;
}

/* ==========================================
   Materials Catalog Page
   ========================================== */
.materials-filter-bar {
    display: flex;
    justify-content: center;
    gap: 0.75rem;
    margin-bottom: 3.5rem;
    flex-wrap: wrap;
}

.mat-filter-btn {
    padding: 0.55rem 1.25rem;
    background-color: var(--bg-section-alt);
    border: 1px solid var(--border-color);
    border-radius: 50px;
    font-size: 0.85rem;
    font-weight: 600;
    color: var(--text-secondary);
    cursor: pointer;
    transition: var(--transition);
}

.mat-filter-btn.active, .mat-filter-btn:hover {
    background-color: var(--accent);
    color: #ffffff;
    border-color: var(--accent);
    box-shadow: 0 4px 10px rgba(234, 88, 12, 0.15);
}

.mat-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
    gap: 2rem;
}

.mat-card {
    background-color: #ffffff;
    border: 1px solid var(--border-color);
    border-radius: 12px;
    padding: 2.25rem;
    box-shadow: var(--shadow-sm);
    transition: var(--transition);
    display: flex;
    flex-direction: column;
    justify-content: space-between;
}

.mat-card:hover {
    border-color: var(--accent);
    transform: translateY(-3px);
    box-shadow: var(--shadow-md);
}

.mat-card-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 1.25rem;
}

.mat-card-badge {
    background-color: var(--bg-section-alt);
    border: 1px solid var(--border-color);
    padding: 0.25rem 0.75rem;
    border-radius: 50px;
    font-size: 0.7rem;
    font-weight: 700;
    color: var(--text-secondary);
    text-transform: uppercase;
}

.mat-card-title {
    font-size: 1.45rem;
    margin-bottom: 0.35rem;
}

.mat-card-subtitle {
    color: var(--accent);
    font-size: 0.9rem;
    font-weight: 600;
    margin-bottom: 1rem;
}

.mat-card-desc {
    color: var(--text-secondary);
    font-size: 0.9rem;
    margin-bottom: 1.5rem;
}

.mat-card-specs {
    border-top: 1px solid var(--border-color);
    padding-top: 1.25rem;
    margin-bottom: 1.75rem;
    display: flex;
    flex-direction: column;
    gap: 0.65rem;
}

.mat-spec-row {
    display: flex;
    justify-content: space-between;
    font-size: 0.85rem;
}

.mat-spec-lbl {
    color: var(--text-muted);
}

.mat-spec-val {
    font-weight: 500;
}

/* ==========================================
   Machinery Showcase Grid
   ========================================== */
.machinery-showcase-grid {
    display: grid;
    grid-template-columns: 1fr 1.2fr;
    gap: 3rem;
    align-items: center;
}

/* ==========================================
   Infrastructure / Plant Machinery section (Shared/Services Page)
   ========================================== */
.infra-tabs-row {
    display: flex;
    justify-content: center;
    gap: 1.5rem;
    margin-bottom: 3rem;
}

.infra-tab-option {
    font-family: var(--font-heading);
    font-size: 1.15rem;
    font-weight: 600;
    color: var(--text-muted);
    cursor: pointer;
    padding-bottom: 0.4rem;
    position: relative;
}

.infra-tab-option.active, .infra-tab-option:hover {
    color: var(--primary-blue);
}

.infra-tab-option::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 50%;
    transform: translateX(-50%);
    width: 0;
    height: 3px;
    background-color: var(--accent);
    transition: var(--transition);
}

.infra-tab-option.active::after {
    width: 100%;
}

.infra-grid-layout {
    display: none;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
}

.infra-grid-layout.active {
    display: grid;
}

.infra-card-item {
    background-color: #ffffff;
    border: 1px solid var(--border-color);
    border-radius: 12px;
    overflow: hidden;
    box-shadow: var(--shadow-sm);
    transition: var(--transition);
}

.infra-card-item:hover {
    border-color: var(--accent);
    box-shadow: var(--shadow-md);
}

.infra-media-box {
    height: 200px;
    background-color: var(--bg-section-alt);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 3rem;
    color: var(--text-muted);
    border-bottom: 1px solid var(--border-color);
}

.infra-body {
    padding: 1.5rem;
}

.infra-card-title {
    font-size: 1.15rem;
    margin-bottom: 0.5rem;
}

.infra-card-desc {
    color: var(--text-secondary);
    font-size: 0.85rem;
}

/* ==========================================
   Contact Page
   ========================================== */
.contact-layout {
    display: grid;
    grid-template-columns: 0.8fr 1.2fr;
    gap: 4rem;
}

.contact-details-panel {
    display: flex;
    flex-direction: column;
    gap: 2rem;
}

.contact-card-box {
    display: flex;
    gap: 1.25rem;
    background-color: var(--bg-section-alt);
    border: 1px solid var(--border-color);
    padding: 1.75rem;
    border-radius: 10px;
}

.contact-card-icon {
    width: 44px;
    height: 44px;
    background-color: rgba(234, 88, 12, 0.1);
    color: var(--accent);
    border-radius: 8px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.25rem;
    flex-shrink: 0;
}

.contact-card-text h4 {
    font-size: 1rem;
    margin-bottom: 0.25rem;
}

.contact-card-text p, .contact-card-text a {
    color: var(--text-secondary);
    font-size: 0.9rem;
}

.contact-card-text a:hover {
    color: var(--accent);
}

.contact-form-panel {
    background-color: #ffffff;
    border: 1px solid var(--border-color);
    border-radius: 12px;
    padding: 3rem;
    box-shadow: var(--shadow-md);
}

.contact-form-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 1.25rem;
}

.form-field-group {
    display: flex;
    flex-direction: column;
    gap: 0.4rem;
}

.form-field-full {
    grid-column: span 2;
}

.form-field-lbl {
    font-size: 0.85rem;
    font-weight: 600;
    color: var(--text-secondary);
}

.form-text-box, .form-select-box, .form-textarea-box {
    background-color: var(--bg-section-alt);
    border: 1px solid var(--border-color);
    border-radius: 6px;
    padding: 0.75rem 1rem;
    font-size: 0.95rem;
    transition: var(--transition);
    color: var(--text-primary);
}

.form-select-box {
    cursor: pointer;
}

.form-text-box:focus, .form-select-box:focus, .form-textarea-box:focus {
    border-color: var(--accent);
    background-color: #ffffff;
    box-shadow: 0 0 0 3px rgba(234, 88, 12, 0.1);
}

.form-textarea-box {
    resize: none;
    min-height: 120px;
}

.form-submit-btn {
    grid-column: span 2;
    margin-top: 1rem;
}

/* FAQs Section */
.faqs-grid {
    max-width: 800px;
    margin: 0 auto;
    display: flex;
    flex-direction: column;
    gap: 1.25rem;
}

.faq-card {
    border: 1px solid var(--border-color);
    background-color: #ffffff;
    border-radius: 8px;
    padding: 1.5rem;
    box-shadow: var(--shadow-sm);
}

.faq-card h4 {
    font-size: 1.1rem;
    margin-bottom: 0.5rem;
}

.faq-card p {
    color: var(--text-secondary);
    font-size: 0.95rem;
}

/* ==========================================
   Footer
   ========================================== */
.footer {
    background-color: var(--primary-blue);
    color: #ffffff;
    padding: 5rem 0 2rem 0;
    border-top: 1px solid rgba(255, 255, 255, 0.05);
}

.footer-grid {
    display: grid;
    grid-template-columns: 1.5fr 1fr 1fr 1.5fr;
    gap: 3rem;
    margin-bottom: 3.5rem;
}

.footer-brand {
    display: flex;
    flex-direction: column;
    gap: 1.25rem;
}

.footer-brand .logo {
    color: #ffffff;
}

.footer-brand p {
    color: #94a3b8; /* slate-400 */
    font-size: 0.9rem;
}

.footer-socials {
    display: flex;
    gap: 0.75rem;
}

.social-btn {
    width: 36px;
    height: 36px;
    background-color: rgba(255, 255, 255, 0.05);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: 4px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: #cbd5e1;
    font-size: 0.85rem;
    font-weight: 600;
}

.social-btn:hover {
    background-color: var(--accent);
    color: #ffffff;
    border-color: var(--accent);
    transform: translateY(-2px);
}

.footer-title {
    font-size: 1.1rem;
    margin-bottom: 1.25rem;
    color: #ffffff;
    position: relative;
    padding-bottom: 0.5rem;
}

.footer-title::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 30px;
    height: 2px;
    background-color: var(--accent);
}

.footer-links {
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
}

.footer-link {
    color: #cbd5e1;
    font-size: 0.9rem;
}

.footer-link:hover {
    color: var(--accent);
    padding-left: 4px;
}

.footer-newsletter-box {
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.footer-newsletter-box p {
    color: #94a3b8;
    font-size: 0.9rem;
}

.newsletter-input-group {
    display: flex;
    gap: 0.4rem;
}

.newsletter-email {
    flex: 1;
    background-color: rgba(255, 255, 255, 0.05);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: 4px;
    padding: 0.65rem 0.85rem;
    font-size: 0.85rem;
    color: #ffffff;
}

.newsletter-email:focus {
    border-color: var(--accent);
}

.newsletter-submit {
    background-color: var(--accent);
    color: #ffffff;
    border-radius: 4px;
    padding: 0 1.1rem;
    cursor: pointer;
    font-weight: 600;
}

.newsletter-submit:hover {
    background-color: var(--accent-hover);
}

.footer-bottom-row {
    border-top: 1px solid rgba(255, 255, 255, 0.08);
    padding-top: 1.5rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
    font-size: 0.85rem;
    color: #94a3b8;
}

/* ==========================================
   Modals & Popups
   ========================================== */
.modal {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(15, 23, 42, 0.7);
    backdrop-filter: blur(5px);
    z-index: 2000;
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    pointer-events: none;
    transition: var(--transition);
}

.modal.active {
    opacity: 1;
    pointer-events: auto;
}

.modal-body {
    background-color: #ffffff;
    border: 1px solid var(--border-color);
    border-radius: 12px;
    padding: 2.5rem;
    max-width: 450px;
    width: 90%;
    text-align: center;
    box-shadow: var(--shadow-lg);
    transform: scale(0.95);
    transition: var(--transition);
}

.modal.active .modal-body {
    transform: scale(1);
}

.modal-icon-check {
    width: 54px;
    height: 54px;
    background-color: rgba(234, 88, 12, 0.08);
    color: var(--accent);
    font-size: 1.75rem;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 50%;
    margin: 0 auto 1.25rem auto;
}

.modal-hdr {
    font-size: 1.5rem;
    margin-bottom: 0.5rem;
}

.modal-text {
    color: var(--text-secondary);
    font-size: 0.95rem;
    margin-bottom: 1.75rem;
}

/* ==========================================
   Responsive Utilities & Breakpoints
   ========================================== */
@media (max-width: 1024px) {
    .hero-grid {
        grid-template-columns: 1fr;
        gap: 3.5rem;
        text-align: center;
    }

    .hero-content {
        display: flex;
        flex-direction: column;
        align-items: center;
    }

    .hero-desc {
        margin: 0 auto 2rem auto;
    }

    .hero-stats {
        justify-content: center;
    }

    .hero-image {
        height: 380px;
    }

    .hero-floating-card {
        left: 1.5rem;
    }

    .calc-layout {
        grid-template-columns: 1fr;
        gap: 2.5rem;
        padding: 2rem;
    }

    .contact-layout {
        grid-template-columns: 1fr;
        gap: 3rem;
    }

    .footer-grid {
        grid-template-columns: 1fr 1fr;
        gap: 2.5rem;
    }

    .machinery-showcase-grid {
        grid-template-columns: 1fr;
        gap: 2rem;
        text-align: center;
    }
}

@media (max-width: 768px) {
    .section {
        padding: 4.5rem 0;
    }

    .hero-title {
        font-size: 2.5rem;
    }

    .nav-menu {
        position: fixed;
        top: 0;
        right: -100%;
        width: 280px;
        height: 100vh;
        background-color: #ffffff;
        border-left: 1px solid var(--border-color);
        flex-direction: column;
        justify-content: center;
        gap: 1.75rem;
        padding: 2.5rem;
        transition: var(--transition);
        z-index: 999;
        box-shadow: var(--shadow-lg);
    }

    .nav-menu.active {
        right: 0;
    }

    .menu-toggle {
        display: flex;
    }

    .menu-toggle.active span:nth-child(1) {
        transform: translateY(7px) rotate(45deg);
    }

    .menu-toggle.active span:nth-child(2) {
        opacity: 0;
    }

    .menu-toggle.active span:nth-child(3) {
        transform: translateY(-7px) rotate(-45deg);
    }

    .about-grid {
        grid-template-columns: 1fr;
        gap: 2.5rem;
    }

    .services-list-grid {
        grid-template-columns: 1fr;
        gap: 1.5rem;
    }

    .service-item-card {
        padding: 2rem;
    }

    .calc-inputs-row {
        grid-template-columns: 1fr;
    }

    .calc-field-full {
        grid-column: span 1;
    }

    .contact-form-grid {
        grid-template-columns: 1fr;
    }

    .form-field-full {
        grid-column: span 1;
    }

    .form-submit-btn {
        grid-column: span 1;
    }

    .footer-grid {
        grid-template-columns: 1fr;
    }

    .footer-bottom-row {
        flex-direction: column;
        gap: 1rem;
        text-align: center;
    }

    .logo {
        font-size: 1.15rem;
        gap: 0.5rem;
    }
    .logo-icon {
        width: 24px;
        height: 24px;
    }
    @media (max-width: 480px) {
        .logo {
            font-size: 1rem;
            gap: 0.4rem;
        }
        .logo span {
            display: none;
        }
        .logo::after {
            content: ' ENT.';
            color: var(--accent);
            font-weight: 500;
        }
        .logo-icon {
            width: 20px;
            height: 20px;
        }
    }
}

/* Scroll-driven reveals */
.reveal {
    opacity: 0;
    transform: translateY(30px);
    transition: opacity 0.8s cubic-bezier(0.16, 1, 0.3, 1), transform 0.8s cubic-bezier(0.16, 1, 0.3, 1);
    will-change: transform, opacity;
}

.reveal.reveal-scale {
    transform: translateY(30px) scale(0.96);
}

.reveal.reveal-left {
    transform: translateX(-40px);
}

.reveal.reveal-right {
    transform: translateX(40px);
}

.reveal.active {
    opacity: 1;
    transform: translateY(0) translateX(0) scale(1);
}

/* ==========================================
   Premium Animations & Micro-interactions
   ========================================== */

/* 1. Page Scroll Progress Indicator */
.scroll-progress {
    position: fixed;
    top: 0;
    left: 0;
    width: 0%;
    height: 4px;
    background: linear-gradient(90deg, var(--accent) 0%, #f97316 50%, #facc15 100%);
    z-index: 10000;
    box-shadow: 0 2px 8px rgba(234, 88, 12, 0.3);
    transition: width 0.1s ease-out;
}

/* 2. Magnetic Card Hover Lift & Glow */
.service-item-card, .infra-card-item, .mat-card {
    transition: transform 0.5s cubic-bezier(0.16, 1, 0.3, 1), 
                box-shadow 0.5s cubic-bezier(0.16, 1, 0.3, 1), 
                border-color 0.5s cubic-bezier(0.16, 1, 0.3, 1) !important;
}

.service-item-card:hover, .infra-card-item:hover, .mat-card:hover {
    transform: translateY(-8px) scale(1.01);
    border-color: var(--accent);
    box-shadow: 0 20px 40px -15px rgba(234, 88, 12, 0.12), 
                0 0 0 1px rgba(234, 88, 12, 0.1),
                var(--shadow-md) !important;
}

/* 3. Floating Hero Card Animation */
@keyframes float {
    0% { transform: translateY(0px); }
    50% { transform: translateY(-10px); }
    100% { transform: translateY(0px); }
}

.hero-floating-card {
    animation: float 5s ease-in-out infinite;
}

/* 4. Sweeping Light Shine Effect on Buttons */
.btn {
    position: relative;
    overflow: hidden;
}

.btn::before {
    content: '';
    position: absolute;
    top: 0;
    left: -120%;
    width: 50%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.35), transparent);
    transform: skewX(-30deg);
    transition: none;
}

.btn:hover::before {
    left: 150%;
    transition: left 0.8s ease-in-out;
}

/* 5. Smooth Zoom on Hero visual */
.hero-image-wrapper {
    overflow: hidden;
}

.hero-image {
    transition: transform 1.2s cubic-bezier(0.16, 1, 0.3, 1) !important;
}

.hero-image-wrapper:hover .hero-image {
    transform: scale(1.05);
}

/* 6. Dynamic underlining for client badges */
.reveal div.service-item-card, .customer-grid .service-item-card {
    position: relative;
    overflow: hidden;
}
.reveal div.service-item-card::after, .customer-grid .service-item-card::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 0%;
    height: 3px;
    background-color: var(--accent);
    transition: width 0.4s cubic-bezier(0.16, 1, 0.3, 1);
}
.reveal div.service-item-card:hover::after, .customer-grid .service-item-card:hover::after {
    width: 100%;
}

/* Responsive adjustments for narrow screens to prevent text overlap in contact page */
@media (max-width: 480px) {
    .contact-card-box {
        flex-direction: column !important;
        align-items: flex-start !important;
        gap: 0.85rem !important;
        padding: 1.25rem !important;
    }
    
    .contact-card-text p, .contact-card-text a {
        font-size: 0.85rem !important;
        word-break: break-word !important;
        overflow-wrap: break-word !important;
    }
    
    .contact-form-panel {
        padding: 1.5rem !important;
    }
}