/* ============================================
   TechPower Electronics - B2B Website Styles
   ============================================ */

/* CSS Variables */
:root {
    /* Colors */
    --primary: #003366;
    --primary-dark: #002244;
    --secondary: #00AEEF;
    --secondary-light: #33c0f5;
    --accent: #FF6600;
    --accent-dark: #e65c00;
    --accent-light: #ff8533;

    --bg-white: #FFFFFF;
    --bg-light: #F8FAFC;
    --bg-lighter: #F1F5F9;
    --bg-dark: #0A1628;
    --bg-darker: #061018;

    --text-primary: #1A1A2E;
    --text-secondary: #64748B;
    --text-light: #94A3B8;
    --text-white: #FFFFFF;

    --border: #E2E8F0;
    --border-dark: #CBD5E1;

    /* Shadows */
    --shadow-sm: 0 2px 8px rgba(0, 51, 102, 0.06);
    --shadow-md: 0 4px 20px rgba(0, 51, 102, 0.08);
    --shadow-lg: 0 8px 30px rgba(0, 51, 102, 0.12);
    --shadow-xl: 0 20px 50px rgba(0, 51, 102, 0.18);

    /* Typography */
    --font-heading: 'Outfit', sans-serif;
    --font-body: 'DM Sans', sans-serif;

    /* Spacing */
    --section-padding: 100px;
    --container-max: 1400px;
    --gutter: 30px;

    /* Transitions */
    --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

/* Reset & Base */
*, *::before, *::after {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

html {
    scroll-behavior: smooth;
    font-size: 16px;
}

body {
    font-family: var(--font-body);
    color: var(--text-primary);
    background-color: var(--bg-white);
    line-height: 1.7;
    overflow-x: hidden;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

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

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

ul {
    list-style: none;
}

button, input, select, textarea {
    font-family: inherit;
    font-size: inherit;
}

/* Container */
.container {
    max-width: var(--container-max);
    margin: 0 auto;
    padding: 0 20px;
}

/* Typography */
h1, h2, h3, h4, h5, h6 {
    font-family: var(--font-heading);
    font-weight: 600;
    line-height: 1.3;
    color: var(--text-primary);
}

/* Section Styles */
.section-header {
    text-align: center;
    max-width: 700px;
    margin: 0 auto 60px;
}

.section-tag {
    display: inline-block;
    font-size: 14px;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 2px;
    color: var(--secondary);
    margin-bottom: 16px;
}

.section-title {
    font-size: 48px;
    font-weight: 700;
    margin-bottom: 20px;
    color: var(--primary);
}

.section-desc {
    font-size: 18px;
    color: var(--text-secondary);
    line-height: 1.8;
}

.section-header-light .section-title {
    color: var(--text-white);
}

.section-header-light .section-desc {
    color: rgba(255, 255, 255, 0.8);
}

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
    padding: 14px 32px;
    font-family: var(--font-heading);
    font-size: 15px;
    font-weight: 600;
    border-radius: 8px;
    cursor: pointer;
    transition: var(--transition);
    border: 2px solid transparent;
}

.btn-primary {
    background: linear-gradient(135deg, var(--accent) 0%, var(--accent-dark) 100%);
    color: var(--text-white);
    border-color: var(--accent);
}

.btn-primary:hover {
    background: linear-gradient(135deg, var(--accent-light) 0%, var(--accent) 100%);
    border-color: var(--accent-light);
    transform: translateY(-2px);
    box-shadow: 0 8px 25px rgba(255, 102, 0, 0.35);
}

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

.btn-secondary:hover {
    background: var(--primary-dark);
    border-color: var(--primary-dark);
    transform: translateY(-2px);
}

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

.btn-outline:hover {
    background: var(--primary);
    color: var(--text-white);
    transform: translateY(-2px);
}

.btn-lg {
    padding: 18px 40px;
    font-size: 16px;
}

.btn-block {
    width: 100%;
}

/* ============================================
   Header
   ============================================ */
.header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    box-shadow: var(--shadow-sm);
    transition: var(--transition);
}

.header.scrolled {
    box-shadow: var(--shadow-md);
}

.navbar {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 80px;
}

.logo {
    display: flex;
    align-items: center;
    gap: 10px;
}

.logo-icon {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 44px;
    height: 44px;
    background: linear-gradient(135deg, var(--primary) 0%, var(--secondary) 100%);
    border-radius: 10px;
    color: var(--text-white);
    font-size: 20px;
}

.logo-text {
    font-family: var(--font-heading);
    font-size: 24px;
    font-weight: 700;
    color: var(--primary);
}

.nav-menu {
    display: flex;
    align-items: center;
    gap: 40px;
}

.nav-link {
    font-family: var(--font-heading);
    font-size: 15px;
    font-weight: 500;
    color: var(--text-primary);
    position: relative;
    padding: 8px 0;
}

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

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

.nav-link:hover {
    color: var(--primary);
}

.nav-actions {
    display: flex;
    align-items: center;
    gap: 20px;
}

.language-selector select {
    padding: 8px 12px;
    border: 1px solid var(--border);
    border-radius: 6px;
    background: var(--bg-white);
    font-size: 14px;
    cursor: pointer;
    transition: var(--transition);
}

.language-selector select:hover {
    border-color: var(--secondary);
}

.mobile-toggle {
    display: none;
    flex-direction: column;
    gap: 5px;
    background: none;
    border: none;
    cursor: pointer;
    padding: 5px;
}

.mobile-toggle span {
    display: block;
    width: 25px;
    height: 2px;
    background: var(--primary);
    transition: var(--transition);
}

/* ============================================
   Hero Section
   ============================================ */
.hero {
    position: relative;
    height: 100vh;
    min-height: 700px;
    display: flex;
    align-items: center;
    overflow: hidden;
}

.hero-video-container {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 0;
}

.hero-video {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.hero-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(
        135deg,
        rgba(10, 22, 40, 0.85) 0%,
        rgba(0, 51, 102, 0.7) 50%,
        rgba(10, 22, 40, 0.8) 100%
    );
}

.hero-content {
    position: relative;
    z-index: 1;
    width: 100%;
    padding-top: 80px;
}

.hero-text {
    max-width: 800px;
}

.hero-title {
    font-size: 72px;
    font-weight: 800;
    color: var(--text-white);
    line-height: 1.15;
    margin-bottom: 24px;
    text-shadow: 0 4px 30px rgba(0, 0, 0, 0.3);
}

.hero-subtitle {
    font-size: 22px;
    color: rgba(255, 255, 255, 0.9);
    margin-bottom: 40px;
    font-weight: 500;
}

.hero-buttons {
    display: flex;
    gap: 16px;
    flex-wrap: wrap;
}

.hero .btn-outline {
    border-color: var(--text-white);
    color: var(--text-white);
}

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

.scroll-indicator {
    position: absolute;
    bottom: 40px;
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 10px;
    color: rgba(255, 255, 255, 0.7);
    font-size: 13px;
    font-weight: 500;
    text-transform: uppercase;
    letter-spacing: 2px;
    animation: bounce 2s infinite;
}

.scroll-arrow {
    font-size: 18px;
}

@keyframes bounce {
    0%, 20%, 50%, 80%, 100% {
        transform: translateY(0);
    }
    40% {
        transform: translateY(-10px);
    }
    60% {
        transform: translateY(-5px);
    }
}

/* ============================================
   Quick Contact Bar
   ============================================ */
.quick-contact {
    background: var(--primary);
    padding: 14px 0;
}

.quick-contact-items {
    display: flex;
    justify-content: center;
    gap: 50px;
    flex-wrap: wrap;
}

.quick-contact-item {
    display: flex;
    align-items: center;
    gap: 10px;
    color: rgba(255, 255, 255, 0.9);
    font-size: 14px;
    font-weight: 500;
}

.quick-contact-item i {
    color: var(--secondary);
    font-size: 16px;
}

.quick-contact-item:hover {
    color: var(--text-white);
}

.quick-contact-item:hover i {
    color: var(--accent);
}

/* ============================================
   Products Section
   ============================================ */
.products {
    padding: var(--section-padding) 0;
    background: var(--bg-light);
}

.product-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 30px;
}

.product-card {
    background: var(--bg-white);
    border-radius: 16px;
    overflow: hidden;
    box-shadow: var(--shadow-sm);
    transition: var(--transition);
}

.product-card:hover {
    transform: translateY(-10px);
    box-shadow: var(--shadow-xl);
}

.product-image {
    position: relative;
    height: 240px;
    overflow: hidden;
}

.product-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: var(--transition);
}

.product-card:hover .product-image img {
    transform: scale(1.1);
}

.product-overlay {
    position: absolute;
    top: 16px;
    right: 16px;
}

.product-count {
    display: inline-block;
    background: var(--accent);
    color: var(--text-white);
    padding: 6px 14px;
    border-radius: 20px;
    font-size: 12px;
    font-weight: 600;
}

.product-info {
    padding: 24px;
}

.product-info h3 {
    font-size: 22px;
    margin-bottom: 16px;
    color: var(--primary);
}

.product-features {
    margin-bottom: 20px;
}

.product-features li {
    font-size: 14px;
    color: var(--text-secondary);
    padding: 6px 0;
    padding-left: 20px;
    position: relative;
}

.product-features li::before {
    content: '\f058';
    font-family: 'Font Awesome 6 Free';
    font-weight: 900;
    position: absolute;
    left: 0;
    color: var(--secondary);
    font-size: 12px;
}

/* ============================================
   Factory Section
   ============================================ */
.factory {
    padding: var(--section-padding) 0;
    background: var(--bg-white);
}

.factory-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 40px;
    margin-bottom: 60px;
}

.factory-card {
    background: var(--bg-white);
    border-radius: 20px;
    overflow: hidden;
    box-shadow: var(--shadow-md);
    border: 1px solid var(--border);
}

.factory-image {
    position: relative;
    height: 280px;
}

.factory-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.factory-badge {
    position: absolute;
    top: 20px;
    left: 20px;
    background: var(--primary);
    color: var(--text-white);
    padding: 8px 20px;
    border-radius: 6px;
    font-size: 13px;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 1px;
}

.factory-content {
    padding: 30px;
}

.factory-content h3 {
    font-size: 26px;
    margin-bottom: 10px;
    color: var(--primary);
}

.factory-location {
    font-size: 15px;
    color: var(--text-secondary);
    margin-bottom: 20px;
    display: flex;
    align-items: center;
    gap: 8px;
}

.factory-features {
    margin-bottom: 24px;
}

.factory-features li {
    font-size: 15px;
    color: var(--text-primary);
    padding: 8px 0;
    display: flex;
    align-items: center;
    gap: 12px;
}

.factory-features li i {
    color: var(--secondary);
    font-size: 14px;
}

.factory-stats {
    display: flex;
    gap: 30px;
    padding-top: 20px;
    border-top: 1px solid var(--border);
}

.stat {
    text-align: center;
}

.stat-value {
    display: block;
    font-family: var(--font-heading);
    font-size: 32px;
    font-weight: 700;
    color: var(--accent);
}

.stat-label {
    font-size: 13px;
    color: var(--text-secondary);
    text-transform: uppercase;
    letter-spacing: 1px;
}

.factory-highlight {
    background: linear-gradient(135deg, var(--primary) 0%, var(--primary-dark) 100%);
    border-radius: 20px;
    padding: 50px;
}

.highlight-stats {
    display: flex;
    justify-content: space-around;
    text-align: center;
}

.highlight-number {
    display: block;
    font-family: var(--font-heading);
    font-size: 56px;
    font-weight: 800;
    color: var(--text-white);
    line-height: 1;
    margin-bottom: 8px;
}

.highlight-label {
    font-size: 16px;
    color: rgba(255, 255, 255, 0.8);
    font-weight: 500;
}

/* ============================================
   Certifications Section
   ============================================ */
.certifications {
    padding: var(--section-padding) 0;
    background: linear-gradient(135deg, var(--bg-dark) 0%, var(--bg-darker) 100%);
}

.cert-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 30px;
    margin-bottom: 50px;
}

.cert-card {
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: 16px;
    padding: 40px 30px;
    text-align: center;
    transition: var(--transition);
}

.cert-card:hover {
    background: rgba(255, 255, 255, 0.1);
    transform: translateY(-5px);
}

.cert-image {
    width: 120px;
    height: 120px;
    margin: 0 auto 24px;
    border-radius: 12px;
    overflow: hidden;
    background: var(--bg-white);
    padding: 15px;
}

.cert-image img {
    width: 100%;
    height: 100%;
    object-fit: contain;
}

.cert-content h3 {
    font-size: 22px;
    color: var(--text-white);
    margin-bottom: 8px;
}

.cert-content p {
    font-size: 14px;
    color: rgba(255, 255, 255, 0.7);
    margin-bottom: 16px;
}

.cert-status {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    font-size: 13px;
    font-weight: 600;
    color: var(--secondary);
    text-transform: uppercase;
    letter-spacing: 1px;
}

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

.additional-certs h4 {
    font-size: 16px;
    color: rgba(255, 255, 255, 0.9);
    margin-bottom: 20px;
}

.cert-badges {
    display: flex;
    justify-content: center;
    gap: 16px;
    flex-wrap: wrap;
}

.cert-badge {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 10px 24px;
    background: rgba(255, 255, 255, 0.1);
    border: 1px solid rgba(255, 255, 255, 0.2);
    border-radius: 8px;
    color: var(--text-white);
    font-size: 14px;
    font-weight: 600;
    transition: var(--transition);
}

.cert-badge:hover {
    background: var(--secondary);
    border-color: var(--secondary);
}

/* ============================================
   Clients Section
   ============================================ */
.clients {
    padding: var(--section-padding) 0;
    background: var(--bg-light);
}

.client-grid {
    display: grid;
    grid-template-columns: repeat(5, 1fr);
    gap: 24px;
    margin-bottom: 50px;
}

.client-card {
    background: var(--bg-white);
    border-radius: 16px;
    padding: 30px 20px;
    text-align: center;
    box-shadow: var(--shadow-sm);
    border: 1px solid var(--border);
    transition: var(--transition);
}

.client-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-lg);
}

.client-card.verified {
    border-color: var(--secondary);
}

.client-image {
    width: 100px;
    height: 60px;
    margin: 0 auto 20px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.client-image img {
    max-width: 100%;
    max-height: 100%;
    object-fit: contain;
}

.client-logo-placeholder {
    width: 100px;
    height: 60px;
    margin: 0 auto 20px;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 8px;
    color: var(--text-secondary);
    font-weight: 600;
    font-size: 14px;
}

.client-logo-placeholder i {
    font-size: 28px;
    color: var(--primary);
}

.client-info {
    display: flex;
    flex-direction: column;
    gap: 6px;
}

.client-status {
    font-size: 12px;
    font-weight: 600;
    color: var(--secondary);
    text-transform: uppercase;
    letter-spacing: 0.5px;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 6px;
}

.client-name {
    font-family: var(--font-heading);
    font-size: 16px;
    font-weight: 600;
    color: var(--primary);
}

.client-testimonials {
    max-width: 800px;
    margin: 0 auto;
}

.testimonial {
    background: var(--bg-white);
    border-radius: 16px;
    padding: 40px;
    box-shadow: var(--shadow-sm);
    text-align: center;
}

.testimonial-content {
    margin-bottom: 24px;
}

.testimonial-content i {
    font-size: 32px;
    color: var(--secondary);
    margin-bottom: 16px;
}

.testimonial-content p {
    font-size: 18px;
    font-style: italic;
    color: var(--text-secondary);
    line-height: 1.8;
}

.testimonial-author strong {
    display: block;
    font-size: 16px;
    color: var(--primary);
}

.testimonial-author span {
    font-size: 14px;
    color: var(--text-light);
}

/* ============================================
   Production Section
   ============================================ */
.production {
    padding: var(--section-padding) 0;
    background: var(--bg-white);
}

.production-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 40px;
    margin-bottom: 60px;
}

.production-card {
    background: var(--bg-light);
    border-radius: 20px;
    overflow: hidden;
    box-shadow: var(--shadow-sm);
}

.production-image {
    height: 280px;
    overflow: hidden;
}

.production-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: var(--transition);
}

.production-card:hover .production-image img {
    transform: scale(1.05);
}

.production-content {
    padding: 30px;
}

.production-content h3 {
    font-size: 22px;
    margin-bottom: 16px;
    color: var(--primary);
    display: flex;
    align-items: center;
    gap: 12px;
}

.production-content h3 i {
    color: var(--secondary);
}

.production-content p {
    font-size: 15px;
    color: var(--text-secondary);
    margin-bottom: 20px;
    line-height: 1.7;
}

.production-content ul {
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.production-content ul li {
    font-size: 14px;
    color: var(--text-primary);
    padding-left: 20px;
    position: relative;
}

.production-content ul li::before {
    content: '\f00c';
    font-family: 'Font Awesome 6 Free';
    font-weight: 900;
    position: absolute;
    left: 0;
    color: var(--accent);
    font-size: 12px;
}

.production-process {
    background: var(--bg-light);
    border-radius: 20px;
    padding: 50px;
    text-align: center;
}

.production-process h3 {
    font-size: 24px;
    margin-bottom: 40px;
    color: var(--primary);
}

.process-steps {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 20px;
    flex-wrap: wrap;
}

.process-step {
    display: flex;
    align-items: center;
    gap: 16px;
    background: var(--bg-white);
    padding: 20px 30px;
    border-radius: 12px;
    box-shadow: var(--shadow-sm);
}

.step-number {
    font-family: var(--font-heading);
    font-size: 32px;
    font-weight: 700;
    color: var(--secondary);
}

.step-content h4 {
    font-size: 16px;
    color: var(--primary);
    margin-bottom: 4px;
}

.step-content p {
    font-size: 13px;
    color: var(--text-secondary);
}

.process-arrow {
    color: var(--secondary);
    font-size: 20px;
}

/* ============================================
   Why Choose Us Section
   ============================================ */
.why-us {
    padding: var(--section-padding) 0;
    background: linear-gradient(135deg, var(--primary) 0%, var(--primary-dark) 100%);
}

.why-us .section-tag {
    color: var(--accent);
}

.why-us .section-title {
    color: var(--text-white);
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 30px;
}

.feature-card {
    background: rgba(255, 255, 255, 0.08);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: 16px;
    padding: 40px 30px;
    text-align: center;
    transition: var(--transition);
}

.feature-card:hover {
    background: rgba(255, 255, 255, 0.15);
    transform: translateY(-8px);
}

.feature-icon {
    width: 80px;
    height: 80px;
    margin: 0 auto 24px;
    background: linear-gradient(135deg, var(--secondary) 0%, var(--secondary-light) 100%);
    border-radius: 20px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 32px;
    color: var(--text-white);
}

.feature-card h3 {
    font-size: 20px;
    color: var(--text-white);
    margin-bottom: 14px;
}

.feature-card p {
    font-size: 15px;
    color: rgba(255, 255, 255, 0.75);
    line-height: 1.7;
}

/* ============================================
   Contact Section
   ============================================ */
.contact {
    padding: var(--section-padding) 0;
    background: var(--bg-light);
}

.contact-grid {
    display: grid;
    grid-template-columns: 1fr 1.2fr;
    gap: 60px;
    align-items: start;
}

.contact-item {
    display: flex;
    gap: 20px;
    margin-bottom: 30px;
}

.contact-icon {
    width: 56px;
    height: 56px;
    background: var(--primary);
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 22px;
    color: var(--text-white);
    flex-shrink: 0;
}

.contact-details h4 {
    font-size: 18px;
    margin-bottom: 8px;
    color: var(--primary);
}

.contact-details p {
    font-size: 15px;
    color: var(--text-secondary);
    line-height: 1.7;
}

.contact-social {
    margin-top: 40px;
}

.contact-social h4 {
    font-size: 18px;
    margin-bottom: 20px;
    color: var(--primary);
}

.social-links {
    display: flex;
    gap: 12px;
}

.social-links a {
    width: 44px;
    height: 44px;
    background: var(--primary);
    border-radius: 10px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--text-white);
    font-size: 18px;
    transition: var(--transition);
}

.social-links a:hover {
    background: var(--secondary);
    transform: translateY(-3px);
}

.contact-form-wrapper {
    background: var(--bg-white);
    border-radius: 20px;
    padding: 50px;
    box-shadow: var(--shadow-lg);
}

.contact-form h3 {
    font-size: 28px;
    margin-bottom: 10px;
    color: var(--primary);
}

.contact-form > p {
    font-size: 15px;
    color: var(--text-secondary);
    margin-bottom: 30px;
}

.form-row {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 20px;
}

.form-group {
    margin-bottom: 24px;
}

.form-group label {
    display: block;
    font-size: 14px;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 8px;
}

.form-group input,
.form-group select,
.form-group textarea {
    width: 100%;
    padding: 14px 18px;
    border: 1px solid var(--border);
    border-radius: 10px;
    font-size: 15px;
    transition: var(--transition);
    background: var(--bg-light);
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--secondary);
    background: var(--bg-white);
    box-shadow: 0 0 0 4px rgba(0, 174, 239, 0.1);
}

.form-group textarea {
    resize: vertical;
    min-height: 120px;
}

.checkbox-group {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 12px;
}

.checkbox-label {
    display: flex;
    align-items: center;
    gap: 10px;
    cursor: pointer;
    font-size: 14px;
    color: var(--text-secondary);
}

.checkbox-label input[type="checkbox"] {
    width: 18px;
    height: 18px;
    accent-color: var(--secondary);
}

.form-success {
    display: none;
    margin-top: 20px;
    padding: 20px;
    background: #d4edda;
    border: 1px solid #c3e6cb;
    border-radius: 10px;
    text-align: center;
    color: #155724;
}

.form-success.show {
    display: block;
}

.form-success i {
    font-size: 32px;
    margin-bottom: 10px;
    display: block;
}

/* ============================================
   Footer
   ============================================ */
.footer {
    background: var(--bg-dark);
    padding: 80px 0 30px;
}

.footer-grid {
    display: grid;
    grid-template-columns: 1.5fr 1fr 1fr 1fr 1.2fr;
    gap: 40px;
    margin-bottom: 60px;
}

.footer-logo {
    display: flex;
    align-items: center;
    gap: 10px;
    margin-bottom: 20px;
}

.footer-logo .logo-icon {
    width: 40px;
    height: 40px;
    font-size: 18px;
}

.footer-logo .logo-text {
    font-size: 22px;
    color: var(--text-white);
}

.footer-about p {
    font-size: 14px;
    color: rgba(255, 255, 255, 0.7);
    line-height: 1.8;
    margin-bottom: 24px;
}

.footer-social {
    display: flex;
    gap: 12px;
}

.footer-social a {
    width: 40px;
    height: 40px;
    background: rgba(255, 255, 255, 0.1);
    border-radius: 10px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--text-white);
    font-size: 16px;
    transition: var(--transition);
}

.footer-social a:hover {
    background: var(--secondary);
}

.footer-links h4,
.footer-contact h4 {
    font-size: 18px;
    color: var(--text-white);
    margin-bottom: 24px;
}

.footer-links ul {
    display: flex;
    flex-direction: column;
    gap: 14px;
}

.footer-links a {
    font-size: 14px;
    color: rgba(255, 255, 255, 0.7);
    transition: var(--transition);
}

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

.footer-contact ul {
    display: flex;
    flex-direction: column;
    gap: 14px;
}

.footer-contact li {
    display: flex;
    align-items: flex-start;
    gap: 12px;
    font-size: 14px;
    color: rgba(255, 255, 255, 0.7);
}

.footer-contact i {
    color: var(--secondary);
    margin-top: 4px;
}

.footer-bottom {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding-top: 30px;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
}

.footer-bottom p {
    font-size: 14px;
    color: rgba(255, 255, 255, 0.6);
}

.footer-bottom-links {
    display: flex;
    gap: 30px;
}

.footer-bottom-links a {
    font-size: 14px;
    color: rgba(255, 255, 255, 0.6);
}

.footer-bottom-links a:hover {
    color: var(--text-white);
}

/* ============================================
   Scroll to Top
   ============================================ */
.scroll-top {
    position: fixed;
    bottom: 30px;
    right: 30px;
    width: 50px;
    height: 50px;
    background: var(--primary);
    color: var(--text-white);
    border: none;
    border-radius: 12px;
    cursor: pointer;
    font-size: 18px;
    box-shadow: var(--shadow-lg);
    opacity: 0;
    visibility: hidden;
    transition: var(--transition);
    z-index: 999;
}

.scroll-top.visible {
    opacity: 1;
    visibility: visible;
}

.scroll-top:hover {
    background: var(--secondary);
    transform: translateY(-3px);
}

/* ============================================
   Responsive Design
   ============================================ */
@media (max-width: 1200px) {
    .container {
        max-width: 1100px;
    }

    .hero-title {
        font-size: 56px;
    }

    .product-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .factory-grid {
        gap: 30px;
    }

    .cert-grid {
        gap: 20px;
    }

    .client-grid {
        grid-template-columns: repeat(3, 1fr);
    }

    .features-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .footer-grid {
        grid-template-columns: repeat(3, 1fr);
    }
}

@media (max-width: 992px) {
    :root {
        --section-padding: 80px;
    }

    .section-title {
        font-size: 40px;
    }

    .hero-title {
        font-size: 48px;
    }

    .product-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .factory-grid,
    .production-grid {
        grid-template-columns: 1fr;
    }

    .cert-grid {
        grid-template-columns: repeat(3, 1fr);
    }

    .client-grid {
        grid-template-columns: repeat(3, 1fr);
    }

    .features-grid {
        grid-template-columns: repeat(2, 1fr);
    }

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

    .footer-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 768px) {
    :root {
        --section-padding: 60px;
    }

    .section-title {
        font-size: 32px;
    }

    .section-desc {
        font-size: 16px;
    }

    .nav-menu {
        position: fixed;
        top: 80px;
        left: 0;
        right: 0;
        background: var(--bg-white);
        flex-direction: column;
        padding: 30px;
        gap: 20px;
        box-shadow: var(--shadow-lg);
        transform: translateY(-150%);
        transition: var(--transition);
        z-index: 999;
    }

    .nav-menu.active {
        transform: translateY(0);
    }

    .mobile-toggle {
        display: flex;
    }

    .nav-cta {
        display: none;
    }

    .hero-title {
        font-size: 36px;
    }

    .hero-subtitle {
        font-size: 18px;
    }

    .hero-buttons {
        flex-direction: column;
    }

    .hero .btn-lg {
        width: 100%;
    }

    .quick-contact-items {
        gap: 20px;
    }

    .quick-contact-item span {
        display: none;
    }

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

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

    .client-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .highlight-stats {
        flex-wrap: wrap;
        gap: 30px;
    }

    .highlight-number {
        font-size: 40px;
    }

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

    .process-steps {
        flex-direction: column;
    }

    .process-arrow {
        transform: rotate(90deg);
    }

    .checkbox-group {
        grid-template-columns: 1fr;
    }

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

    .contact-form-wrapper {
        padding: 30px;
    }

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

    .footer-bottom {
        flex-direction: column;
        gap: 20px;
        text-align: center;
    }

    .scroll-indicator {
        display: none;
    }
}

@media (max-width: 480px) {
    .hero-title {
        font-size: 28px;
    }

    .btn {
        padding: 12px 24px;
        font-size: 14px;
    }

    .factory-stats {
        flex-direction: column;
        gap: 20px;
    }

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

/* ============================================
   Animations
   ============================================ */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.animate-fade-in {
    animation: fadeInUp 0.6s ease forwards;
}

.delay-1 { animation-delay: 0.1s; }
.delay-2 { animation-delay: 0.2s; }
.delay-3 { animation-delay: 0.3s; }
.delay-4 { animation-delay: 0.4s; }