/* ==========================================
   VVC Metal Engineering - Main Stylesheet
   Professional Industrial Design Theme
   ========================================== */

/* CSS Variables for Theme Colors */
:root {
    --primary-color: #1e3a5f;      /* Navy Blue */
    --secondary-color: #4a5d6f;     /* Steel Grey */
    --accent-color: #d4af37;        /* Gold Accent */
    --dark-color: #0f1e2e;
    --light-color: #f8f9fa;
    --white: #ffffff;
    --text-dark: #212529;
    --text-light: #6c757d;
    --border-color: #dee2e6;
    --success-color: #28a745;
    --warning-color: #ffc107;
    --danger-color: #dc3545;
    
    /* Spacing */
    --spacing-xs: 0.5rem;
    --spacing-sm: 1rem;
    --spacing-md: 2rem;
    --spacing-lg: 3rem;
    --spacing-xl: 4rem;
    
    /* Typography */
    --font-family: 'Inter', sans-serif;
    --font-size-base: 16px;
    --line-height-base: 1.6;
    
    /* Transitions */
    --transition-fast: 0.2s ease;
    --transition-base: 0.3s ease;
    --transition-slow: 0.5s ease;
}

/* ==========================================
   Reset & Base Styles
   ========================================== */

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
    font-size: var(--font-size-base);
}

body {
    font-family: var(--font-family);
    line-height: var(--line-height-base);
    color: var(--text-dark);
    background-color: var(--white);
    overflow-x: hidden;
}

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

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

ul {
    list-style: none;
}

/* ==========================================
   Utility Classes
   ========================================== */

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--spacing-sm);
}

.text-center {
    text-align: center;
}

.lead-text {
    font-size: 1.125rem;
    font-weight: 500;
    line-height: 1.7;
    color: var(--text-dark);
    margin-bottom: var(--spacing-md);
}

/* ==========================================
   Header & Navigation
   ========================================== */

.header {
    background-color: var(--white);
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
    position: sticky;
    top: 0;
    z-index: 1000;
    transition: var(--transition-base);
}

.header-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: var(--spacing-sm) 0;
}

.logo h1 {
    font-size: 1.1rem;
    font-weight: 800;
    color: var(--primary-color);
    letter-spacing: 1px;
    margin-bottom: 0.25rem;
    line-height: 20px;
    width: 20%;
    max-width: 200px;
}
.logo h1 a{text-decoration: none; color: var(--primary-color);}
.logo h1 a:hover{text-decoration: none; color: var(--primary-color);}
.logo h1 a:visited{text-decoration: none; color: var(--primary-color);}

.logo-subtitle {
    font-size: 0.875rem;
    color: var(--secondary-color);
    font-weight: 500;
}

.nav{width:80%;}

.nav-list {

    display: flex;
    gap: var(--spacing-sm);
    align-items: center;
}

.nav-list li{display:inline-block}

.nav-list a {
    color: var(--text-dark);
    font-weight: 500;
    font-size: 0.9rem;
    padding: 0.5rem 1rem;
    border-radius: 4px;
    transition: var(--transition-base);
}

.nav-list a:hover,
.nav-list a.active {
    color: var(--primary-color);
    background-color: rgba(30, 58, 95, 0.05);
}

.mobile-toggle {
    display: none;
    background: none;
    border: none;
    font-size: 1.5rem;
    color: var(--primary-color);
    cursor: pointer;
    padding: 0.5rem;
}

/* ==========================================
   Hero Section
   ========================================== */

.hero {
    position: relative;
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--dark-color) 100%);
    color: var(--white);
    padding: var(--spacing-xl) 0;
    min-height: 600px;
    display: flex;
    align-items: center;
    overflow: hidden;
}

.hero::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-image: 
        repeating-linear-gradient(90deg, transparent, transparent 2px, rgba(255,255,255,0.03) 2px, rgba(255,255,255,0.03) 4px),
        repeating-linear-gradient(0deg, transparent, transparent 2px, rgba(255,255,255,0.03) 2px, rgba(255,255,255,0.03) 4px);
    pointer-events: none;
}

.hero-overlay {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: radial-gradient(circle at 20% 50%, rgba(212, 175, 55, 0.1) 0%, transparent 50%);
    pointer-events: none;
}

.hero-content {
    position: relative;
    z-index: 2;
    text-align: center;
    max-width: 900px;
    margin: 0 auto;
}

.hero-title {
    font-size: 3rem;
    font-weight: 800;
    margin-bottom: var(--spacing-md);
    line-height: 1.2;
    text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.3);
}

.hero-subtitle {
    font-size: 1.5rem;
    margin-bottom: var(--spacing-md);
    font-weight: 300;
    opacity: 0.95;
}

.hero-sectors {
    display: flex;
    justify-content: center;
    gap: var(--spacing-sm);
    margin-bottom: var(--spacing-lg);
    flex-wrap: wrap;
}

.sector-badge {
    background-color: rgba(255, 255, 255, 0.15);
    backdrop-filter: blur(10px);
    padding: 0.75rem 1.5rem;
    border-radius: 50px;
    font-weight: 600;
    border: 2px solid rgba(255, 255, 255, 0.2);
    font-size: 1rem;
    transition: var(--transition-base);
}

.sector-badge:hover {
    background-color: rgba(255, 255, 255, 0.25);
    transform: translateY(-2px);
}

.hero-cta {
    display: flex;
    justify-content: center;
    gap: var(--spacing-sm);
    flex-wrap: wrap;
}

/* ==========================================
   Buttons
   ========================================== */

.btn {
    display: inline-block;
    padding: 0.875rem 2rem;
    font-weight: 600;
    font-size: 1rem;
    border-radius: 6px;
    cursor: pointer;
    transition: var(--transition-base);
    border: 2px solid transparent;
    text-align: center;
}

.btn-primary {
    background-color: var(--accent-color);
    color: var(--dark-color);
    border-color: var(--accent-color);
}

.btn-primary:hover {
    background-color: #c29d2f;
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(212, 175, 55, 0.3);
}

.btn-secondary {
    background-color: transparent;
    color: var(--white);
    border-color: var(--white);
}

.btn-secondary:hover {
    background-color: var(--white);
    color: var(--primary-color);
}

.btn-outline {
    background-color: transparent;
    color: var(--primary-color);
    border-color: var(--primary-color);
}

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

.btn-light {
    background-color: var(--white);
    color: var(--primary-color);
    border-color: var(--white);
}

.btn-light:hover {
    background-color: var(--light-color);
    transform: translateY(-2px);
}

.btn-outline-light {
    background-color: transparent;
    color: var(--white);
    border-color: var(--white);
}

.btn-outline-light:hover {
    background-color: rgba(255, 255, 255, 0.1);
}

/* ==========================================
   Stats Section
   ========================================== */

.stats-section {
    background-color: var(--light-color);
    padding: var(--spacing-lg) 0;
    margin-top: -50px;
    position: relative;
    z-index: 10;
}

.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: var(--spacing-md);
}

.stat-card {
    background-color: var(--white);
    padding: var(--spacing-md);
    border-radius: 10px;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.08);
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    transition: var(--transition-base);
}

.stat-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 8px 25px rgba(0, 0, 0, 0.12);
}

.stat-icon {
    font-size: 2.5rem;
    color: var(--primary-color);
    background: linear-gradient(135deg, rgba(30, 58, 95, 0.1) 0%, rgba(30, 58, 95, 0.05) 100%);
    width: 80px;
    height: 80px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 10px;
    flex-shrink: 0;
}

.stat-content {
    flex: 1;
}

.stat-number {
    font-size: 2rem;
    font-weight: 800;
    color: var(--primary-color);
    margin-bottom: 0.25rem;
}

.stat-label {
    font-size: 0.9rem;
    color: var(--text-light);
    font-weight: 500;
}

/* ==========================================
   Section Styles
   ========================================== */

section {
    padding: var(--spacing-xl) 0;
}

.section-header {
    text-align: center;
    margin-bottom: var(--spacing-lg);
}

.section-title {
    font-size: 2.5rem;
    font-weight: 800;
    color: var(--primary-color);
    margin-bottom: var(--spacing-sm);
}

.title-underline {
    width: 80px;
    height: 4px;
    background: linear-gradient(90deg, var(--accent-color) 0%, transparent 100%);
    margin: 0 auto var(--spacing-sm);
}

.section-description {
    font-size: 1.125rem;
    color: var(--text-light);
    max-width: 700px;
    margin: 0 auto;
}

/* ==========================================
   About Preview Section
   ========================================== */

.about-preview {
    background-color: var(--white);
}

.about-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-lg);
    align-items: start;
}

.about-text p {
    margin-bottom: var(--spacing-sm);
    color: var(--text-dark);
}

.about-text .btn {
    margin-top: var(--spacing-md);
}

.about-features {
    background: linear-gradient(135deg, rgba(30, 58, 95, 0.05) 0%, rgba(30, 58, 95, 0.02) 100%);
    padding: var(--spacing-md);
    border-radius: 10px;
    border-left: 4px solid var(--primary-color);
}

.feature-item {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    padding: var(--spacing-sm) 0;
    font-weight: 500;
    color: var(--text-dark);
}

.feature-item i {
    color: var(--success-color);
    font-size: 1.25rem;
}

/* ==========================================
   Capabilities Section
   ========================================== */

.capabilities-preview {
    background-color: var(--light-color);
}

.capabilities-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: var(--spacing-md);
}

.capability-card {
    background-color: var(--white);
    padding: var(--spacing-md);
    border-radius: 10px;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.05);
    transition: var(--transition-base);
    text-align: center;
}

.capability-card:hover {
    transform: translateY(-8px);
    box-shadow: 0 8px 30px rgba(0, 0, 0, 0.12);
}

.capability-icon {
    font-size: 3rem;
    color: var(--primary-color);
    margin-bottom: var(--spacing-sm);
    background: linear-gradient(135deg, rgba(30, 58, 95, 0.1) 0%, rgba(30, 58, 95, 0.05) 100%);
    width: 100px;
    height: 100px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 50%;
    margin: 0 auto var(--spacing-sm);
}

.capability-card h3 {
    font-size: 1.5rem;
    color: var(--primary-color);
    margin-bottom: var(--spacing-sm);
    font-weight: 700;
}

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

/* ==========================================
   Sectors Section
   ========================================== */

.sectors-section {
    background-color: var(--white);
}

.sectors-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: var(--spacing-md);
}

.sector-card {
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--secondary-color) 100%);
    color: var(--white);
    padding: var(--spacing-lg);
    border-radius: 12px;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.1);
    transition: var(--transition-base);
    position: relative;
    overflow: hidden;
}

.sector-card::before {
    content: '';
    position: absolute;
    top: -50%;
    right: -50%;
    width: 200%;
    height: 200%;
    background: radial-gradient(circle, rgba(255, 255, 255, 0.1) 0%, transparent 70%);
    transition: var(--transition-slow);
}

.sector-card:hover::before {
    top: -100%;
    right: -100%;
}

.sector-card:hover {
    transform: translateY(-10px);
    box-shadow: 0 12px 40px rgba(0, 0, 0, 0.2);
}

.sector-icon {
    font-size: 3.5rem;
    margin-bottom: var(--spacing-sm);
    opacity: 0.9;
}

.sector-card h3 {
    font-size: 1.75rem;
    margin-bottom: var(--spacing-sm);
    font-weight: 700;
}

.sector-card p {
    line-height: 1.7;
    opacity: 0.95;
}

/* ==========================================
   Why Choose Us Section
   ========================================== */

.why-choose {
    background: linear-gradient(135deg, rgba(30, 58, 95, 0.03) 0%, rgba(30, 58, 95, 0.01) 100%);
}

.why-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: var(--spacing-md);
}

.why-card {
    background-color: var(--white);
    padding: var(--spacing-md);
    border-radius: 10px;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.05);
    transition: var(--transition-base);
    border-top: 4px solid var(--primary-color);
}

.why-card:hover {
    box-shadow: 0 8px 30px rgba(0, 0, 0, 0.12);
    transform: translateY(-5px);
}

.why-number {
    font-size: 2.5rem;
    font-weight: 800;
    color: var(--accent-color);
    opacity: 0.3;
    margin-bottom: var(--spacing-sm);
}

.why-card h3 {
    font-size: 1.25rem;
    color: var(--primary-color);
    margin-bottom: var(--spacing-sm);
    font-weight: 700;
}

.why-card p {
    color: var(--text-light);
    line-height: 1.6;
}

/* ==========================================
   CTA Section
   ========================================== */

.cta-section {
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--dark-color) 100%);
    color: var(--white);
    text-align: center;
    padding: var(--spacing-xl) 0;
    position: relative;
    overflow: hidden;
}

.cta-section::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: radial-gradient(circle at 80% 50%, rgba(212, 175, 55, 0.1) 0%, transparent 50%);
    pointer-events: none;
}

.cta-content {
    position: relative;
    z-index: 2;
}

.cta-content h2 {
    font-size: 2.5rem;
    font-weight: 800;
    margin-bottom: var(--spacing-sm);
}

.cta-content p {
    font-size: 1.25rem;
    margin-bottom: var(--spacing-lg);
    opacity: 0.95;
}

.cta-buttons {
    display: flex;
    justify-content: center;
    gap: var(--spacing-sm);
    flex-wrap: wrap;
}

/* ==========================================
   Footer
   ========================================== */

.footer {
    background-color: var(--dark-color);
    color: var(--white);
    padding: var(--spacing-xl) 0 var(--spacing-md);
}

.footer-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: var(--spacing-lg);
    margin-bottom: var(--spacing-lg);
}

.footer-col h3 {
    font-size: 1.5rem;
    margin-bottom: var(--spacing-sm);
    color: var(--accent-color);
}

.footer-col h4 {
    font-size: 1.125rem;
    margin-bottom: var(--spacing-sm);
    color: var(--white);
    font-weight: 600;
}

.footer-col p {
    color: rgba(255, 255, 255, 0.7);
    line-height: 1.6;
    margin-bottom: var(--spacing-sm);
}

.footer-social {
    display: flex;
    gap: var(--spacing-sm);
    margin-top: var(--spacing-sm);
}

.footer-social a {
    width: 40px;
    height: 40px;
    background-color: rgba(255, 255, 255, 0.1);
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 50%;
    font-size: 1.125rem;
    transition: var(--transition-base);
}

.footer-social a:hover {
    background-color: var(--accent-color);
    color: var(--dark-color);
}

.footer-links li {
    margin-bottom: 0.5rem;
}

.footer-links a {
    color: rgba(255, 255, 255, 0.7);
    transition: var(--transition-base);
}

.footer-links a:hover {
    color: var(--accent-color);
    padding-left: 5px;
}

.footer-contact li {
    display: flex;
    align-items: start;
    gap: 0.75rem;
    margin-bottom: 0.75rem;
    color: rgba(255, 255, 255, 0.7);
}

.footer-contact i {
    color: var(--accent-color);
    margin-top: 0.25rem;
}

.footer-bottom {
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    padding-top: var(--spacing-md);
    text-align: center;
    color: rgba(255, 255, 255, 0.6);
}

/* ==========================================
   Responsive Design
   ========================================== */

@media (max-width: 1024px) {
    .mobile-toggle {
        display: block;
    }
    
    .nav {
        position: fixed;
        top: 72px;
        left: -100%;
        width: 100%;
        height: calc(100vh - 72px);
        background-color: var(--white);
        box-shadow: 0 4px 10px rgba(0, 0, 0, 0.1);
        transition: var(--transition-base);
        overflow-y: auto;
    }
    
    .nav.active {
        left: 0;
    }
    
    .nav-list {
        flex-direction: column;
        padding: var(--spacing-md);
        gap: 0;
    }
    
    .nav-list a {
        display: block;
        padding: var(--spacing-sm);
        border-bottom: 1px solid var(--border-color);
    }
    
    .hero-title {
        font-size: 2rem;
    }
    
    .hero-subtitle {
        font-size: 1.125rem;
    }
    
    .section-title {
        font-size: 2rem;
    }
    
    .about-content {
        grid-template-columns: 1fr;
    }
    
    .stats-grid,
    .capabilities-grid,
    .sectors-grid,
    .why-grid {
        grid-template-columns: 1fr;
    }
    
    .cta-content h2 {
        font-size: 1.75rem;
    }
    
    .cta-content p {
        font-size: 1rem;
    }
}

@media (max-width: 480px) {
    :root {
        --font-size-base: 14px;
    }
    
    .logo h1 {
        font-size: 1.25rem;
    }
    
    .hero {
        min-height: 500px;
        padding: var(--spacing-lg) 0;
    }
    
    .hero-title {
        font-size: 1.75rem;
    }
    
    .section-title {
        font-size: 1.75rem;
    }
    
    .btn {
        padding: 0.75rem 1.5rem;
        font-size: 0.9rem;
    }
}