/* ===================================
   GentechServices - Modern Business Website
   Author: GentechServices
   Description: Professional, responsive stylesheet
   =================================== */

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

:root {
    /* Primary Colors */
    --primary-color: #2563eb;
    --primary-dark: #1e40af;
    --primary-light: #3b82f6;
    
    /* Secondary Colors */
    --secondary-color: #1e293b;
    --secondary-dark: #0f172a;
    --secondary-light: #334155;
    
    /* Accent Colors */
    --accent-color: #06b6d4;
    --success-color: #10b981;
    --warning-color: #f59e0b;
    --danger-color: #ef4444;
    
    /* Neutral Colors */
    --white: #ffffff;
    --light-gray: #f8fafc;
    --gray: #e2e8f0;
    --dark-gray: #64748b;
    --text-dark: #1e293b;
    --text-light: #64748b;
    
    /* Gradients */
    --gradient-primary: linear-gradient(135deg, #2563eb 0%, #06b6d4 100%);
    --gradient-secondary: linear-gradient(135deg, #1e293b 0%, #334155 100%);
    
    /* Spacing */
    --spacing-xs: 0.5rem;
    --spacing-sm: 1rem;
    --spacing-md: 1.5rem;
    --spacing-lg: 2rem;
    --spacing-xl: 3rem;
    --spacing-2xl: 4rem;
    
    /* Typography */
    --font-primary: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    --font-heading: 'Poppins', sans-serif;
    
    /* Shadows */
    --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1);
    --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1);
    
    /* Border Radius */
    --radius-sm: 0.375rem;
    --radius-md: 0.5rem;
    --radius-lg: 0.75rem;
    --radius-xl: 1rem;
    --radius-full: 9999px;
    
    /* Transitions */
    --transition-fast: 0.15s ease;
    --transition-base: 0.3s ease;
    --transition-slow: 0.5s ease;
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-primary);
    font-size: 16px;
    line-height: 1.6;
    color: var(--text-dark);
    background-color: var(--white);
    overflow-x: hidden;
}

/* Container */
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--spacing-md);
}

/* Section Spacing */
section {
    padding: var(--spacing-2xl) 0;
}

/* ===================================
   Navigation Bar
   =================================== */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    background-color: var(--white);
    box-shadow: var(--shadow-md);
    z-index: 1000;
    transition: all var(--transition-base);
}

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

/* Logo */
.logo {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    font-family: var(--font-heading);
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--secondary-color);
    cursor: pointer;
    text-decoration: none;
    transition: all var(--transition-base);
}

.logo:hover {
    opacity: 0.9;
}

.logo-svg {
    width: 40px;
    height: 40px;
    flex-shrink: 0;
    transition: transform var(--transition-base);
}

.logo:hover .logo-svg {
    transform: scale(1.05);
}

.logo-icon {
    font-size: 2rem;
    color: var(--primary-color);
    animation: pulse 2s infinite;
}

.logo-text {
    color: var(--secondary-color);
    white-space: nowrap;
}

.logo-highlight {
    color: var(--primary-color);
}

@keyframes pulse {
    0%, 100% {
        transform: scale(1);
    }
    50% {
        transform: scale(1.05);
    }
}

/* Navigation Menu */
.nav-menu {
    display: flex;
    list-style: none;
    gap: var(--spacing-lg);
}

.nav-link {
    color: var(--text-dark);
    text-decoration: none;
    font-weight: 500;
    font-size: 0.95rem;
    padding: var(--spacing-xs) var(--spacing-sm);
    border-radius: var(--radius-md);
    transition: all var(--transition-base);
    position: relative;
}

.nav-link::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 50%;
    transform: translateX(-50%);
    width: 0;
    height: 2px;
    background: var(--gradient-primary);
    transition: width var(--transition-base);
}

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

.nav-link:hover::after,
.nav-link.active::after {
    width: 80%;
}

/* Mobile Menu Toggle */
.hamburger {
    display: none;
    flex-direction: column;
    cursor: pointer;
    gap: 5px;
}

.bar {
    width: 25px;
    height: 3px;
    background-color: var(--secondary-color);
    border-radius: var(--radius-full);
    transition: all var(--transition-base);
}

.hamburger.active .bar:nth-child(1) {
    transform: rotate(45deg) translate(8px, 8px);
}

.hamburger.active .bar:nth-child(2) {
    opacity: 0;
}

.hamburger.active .bar:nth-child(3) {
    transform: rotate(-45deg) translate(7px, -7px);
}

/* ===================================
   Hero Section
   =================================== */
.hero {
    background: linear-gradient(135deg, #f8fafc 0%, #e0f2fe 100%);
    padding-top: calc(var(--spacing-2xl) + 80px);
    padding-bottom: var(--spacing-2xl);
    min-height: 100vh;
    display: flex;
    align-items: center;
}

.hero-container {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-xl);
    align-items: center;
}

.hero-content {
    animation: fadeInLeft 1s ease;
}

@keyframes fadeInLeft {
    from {
        opacity: 0;
        transform: translateX(-50px);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

.hero-title {
    font-family: var(--font-heading);
    font-size: 3rem;
    font-weight: 700;
    line-height: 1.2;
    color: var(--secondary-color);
    margin-bottom: var(--spacing-md);
}

.gradient-text {
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero-description {
    font-size: 1.125rem;
    color: var(--text-light);
    margin-bottom: var(--spacing-lg);
    line-height: 1.8;
}

.hero-buttons {
    display: flex;
    gap: var(--spacing-md);
    margin-bottom: var(--spacing-xl);
}

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    gap: var(--spacing-xs);
    padding: var(--spacing-sm) var(--spacing-lg);
    font-size: 1rem;
    font-weight: 600;
    text-decoration: none;
    border-radius: var(--radius-lg);
    transition: all var(--transition-base);
    cursor: pointer;
    border: none;
    font-family: var(--font-primary);
}

.btn-primary {
    background: var(--gradient-primary);
    color: var(--white);
    box-shadow: var(--shadow-md);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-xl);
}

.btn-secondary {
    background-color: transparent;
    color: var(--primary-color);
    border: 2px solid var(--primary-color);
}

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

/* Trust Badges */
.trust-badges {
    display: flex;
    gap: var(--spacing-lg);
    flex-wrap: wrap;
}

.badge {
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
    color: var(--text-light);
    font-size: 0.875rem;
}

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

/* Hero Image */
.hero-image {
    position: relative;
    height: 500px;
    animation: fadeInRight 1s ease;
    display: flex;
    align-items: center;
    justify-content: center;
}

.hero-svg-illustration {
    width: 100%;
    max-width: 500px;
    height: auto;
    position: relative;
    z-index: 2;
}

@keyframes fadeInRight {
    from {
        opacity: 0;
        transform: translateX(50px);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

.hero-circle {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 400px;
    height: 400px;
    background: var(--gradient-primary);
    border-radius: 50%;
    opacity: 0.05;
    animation: float 6s ease-in-out infinite;
    z-index: 1;
}

@keyframes float {
    0%, 100% {
        transform: translate(-50%, -50%) translateY(0);
    }
    50% {
        transform: translate(-50%, -50%) translateY(-20px);
    }
}

.floating-card {
    position: absolute;
    background: var(--white);
    padding: var(--spacing-md);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-xl);
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    animation: floatCard 4s ease-in-out infinite;
}

.floating-card i {
    font-size: 1.5rem;
    color: var(--primary-color);
}

.floating-card span {
    font-weight: 600;
    color: var(--secondary-color);
}

.card-1 {
    top: 10%;
    left: 10%;
    animation-delay: 0s;
}

.card-2 {
    top: 50%;
    right: 10%;
    animation-delay: 1s;
}

.card-3 {
    bottom: 15%;
    left: 15%;
    animation-delay: 2s;
}

@keyframes floatCard {
    0%, 100% {
        transform: translateY(0);
    }
    50% {
        transform: translateY(-15px);
    }
}

/* ===================================
   Section Headers
   =================================== */
.section-header {
    text-align: center;
    margin-bottom: var(--spacing-xl);
}

.section-tag {
    display: inline-block;
    padding: var(--spacing-xs) var(--spacing-md);
    background-color: var(--light-gray);
    color: var(--primary-color);
    font-size: 0.875rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 1px;
    border-radius: var(--radius-full);
    margin-bottom: var(--spacing-sm);
}

.section-title {
    font-family: var(--font-heading);
    font-size: 2.5rem;
    font-weight: 700;
    color: var(--secondary-color);
    margin-bottom: var(--spacing-sm);
}

.section-subtitle {
    font-size: 1.125rem;
    color: var(--text-light);
}

/* ===================================
   About Section
   =================================== */
.about {
    background-color: var(--white);
}

.about-content {
    max-width: 1000px;
    margin: 0 auto;
}

.about-heading {
    font-family: var(--font-heading);
    font-size: 1.875rem;
    font-weight: 600;
    color: var(--secondary-color);
    margin-bottom: var(--spacing-md);
}

.about-description {
    font-size: 1.0625rem;
    line-height: 1.8;
    color: var(--text-light);
    margin-bottom: var(--spacing-md);
}

/* Features Grid */
.features-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: var(--spacing-lg);
    margin-top: var(--spacing-xl);
}

.feature-item {
    display: flex;
    gap: var(--spacing-md);
    padding: var(--spacing-md);
    background-color: var(--light-gray);
    border-radius: var(--radius-lg);
    transition: all var(--transition-base);
}

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

.feature-icon {
    flex-shrink: 0;
    width: 50px;
    height: 50px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--gradient-primary);
    color: var(--white);
    border-radius: var(--radius-md);
    font-size: 1.5rem;
}

.feature-content h4 {
    font-family: var(--font-heading);
    font-size: 1.125rem;
    font-weight: 600;
    color: var(--secondary-color);
    margin-bottom: var(--spacing-xs);
}

.feature-content p {
    font-size: 0.9375rem;
    color: var(--text-light);
}

/* ===================================
   Services Section
   =================================== */
.services {
    background-color: var(--light-gray);
}

.services-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--spacing-lg);
}

.service-card {
    background-color: var(--white);
    padding: var(--spacing-xl);
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-md);
    transition: all var(--transition-base);
}

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

.service-icon {
    width: 70px;
    height: 70px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--gradient-primary);
    color: var(--white);
    border-radius: var(--radius-lg);
    font-size: 2rem;
    margin-bottom: var(--spacing-md);
}

.service-title {
    font-family: var(--font-heading);
    font-size: 1.375rem;
    font-weight: 600;
    color: var(--secondary-color);
    margin-bottom: var(--spacing-sm);
}

.service-description {
    font-size: 0.9375rem;
    color: var(--text-light);
    line-height: 1.7;
    margin-bottom: var(--spacing-md);
}

.service-features {
    list-style: none;
    margin-bottom: var(--spacing-md);
}

.service-features li {
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
    padding: var(--spacing-xs) 0;
    font-size: 0.9375rem;
    color: var(--text-light);
}

.service-features i {
    color: var(--success-color);
    font-size: 0.875rem;
}

.service-link {
    display: inline-flex;
    align-items: center;
    gap: var(--spacing-xs);
    color: var(--primary-color);
    font-weight: 600;
    text-decoration: none;
    transition: all var(--transition-base);
}

.service-link:hover {
    gap: var(--spacing-sm);
}

/* ===================================
   Contact Section
   =================================== */
.contact {
    background-color: var(--white);
}

.contact-content {
    display: grid;
    grid-template-columns: 1fr 1.2fr;
    gap: var(--spacing-2xl);
    margin-top: var(--spacing-xl);
}

.contact-heading {
    font-family: var(--font-heading);
    font-size: 1.875rem;
    font-weight: 600;
    color: var(--secondary-color);
    margin-bottom: var(--spacing-md);
}

.contact-text {
    font-size: 1.0625rem;
    color: var(--text-light);
    line-height: 1.8;
    margin-bottom: var(--spacing-xl);
}

.contact-details {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-lg);
    margin-bottom: var(--spacing-xl);
}

.contact-item {
    display: flex;
    gap: var(--spacing-md);
}

.contact-icon {
    flex-shrink: 0;
    width: 50px;
    height: 50px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--gradient-primary);
    color: var(--white);
    border-radius: var(--radius-md);
    font-size: 1.25rem;
}

.contact-item-content h4 {
    font-family: var(--font-heading);
    font-size: 1.125rem;
    font-weight: 600;
    color: var(--secondary-color);
    margin-bottom: var(--spacing-xs);
}

.contact-item-content p {
    font-size: 0.9375rem;
    color: var(--text-light);
    line-height: 1.6;
}

.contact-item-content a {
    color: var(--text-light);
    text-decoration: none;
    transition: color var(--transition-base);
}

.contact-item-content a:hover {
    color: var(--primary-color);
}

/* Social Links */
.social-links {
    display: flex;
    gap: var(--spacing-md);
}

.social-link {
    width: 45px;
    height: 45px;
    display: flex;
    align-items: center;
    justify-content: center;
    background-color: var(--light-gray);
    color: var(--secondary-color);
    border-radius: var(--radius-md);
    text-decoration: none;
    font-size: 1.125rem;
    transition: all var(--transition-base);
}

.social-link:hover {
    background: var(--gradient-primary);
    color: var(--white);
    transform: translateY(-3px);
}

/* Contact Form */
.contact-form-container {
    background-color: var(--light-gray);
    padding: var(--spacing-xl);
    border-radius: var(--radius-xl);
}

.contact-form {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-md);
}

.form-group {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-xs);
}

.form-group label {
    font-weight: 600;
    color: var(--secondary-color);
    font-size: 0.9375rem;
}

.form-group input,
.form-group select,
.form-group textarea {
    padding: var(--spacing-sm) var(--spacing-md);
    font-size: 0.9375rem;
    font-family: var(--font-primary);
    color: var(--text-dark);
    background-color: var(--white);
    border: 2px solid var(--gray);
    border-radius: var(--radius-md);
    transition: all var(--transition-base);
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.1);
}

.form-group textarea {
    resize: vertical;
}

.form-submit {
    margin-top: var(--spacing-sm);
    width: 100%;
}

/* ===================================
   Footer
   =================================== */
.footer {
    background: var(--gradient-secondary);
    color: var(--white);
    padding: var(--spacing-2xl) 0 var(--spacing-lg);
}

.footer-content {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: var(--spacing-xl);
    margin-bottom: var(--spacing-xl);
}

.footer-logo {
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
    font-family: var(--font-heading);
    font-size: 1.5rem;
    font-weight: 700;
    margin-bottom: var(--spacing-md);
}

.footer-logo .logo-icon {
    color: var(--white);
}

.footer-logo .logo-text {
    color: var(--white);
}

.footer-logo .logo-highlight {
    color: var(--accent-color);
}

.footer-description {
    font-size: 0.9375rem;
    color: rgba(255, 255, 255, 0.8);
    line-height: 1.7;
}

.footer-heading {
    font-family: var(--font-heading);
    font-size: 1.125rem;
    font-weight: 600;
    margin-bottom: var(--spacing-md);
}

.footer-links {
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: var(--spacing-sm);
}

.footer-links a {
    color: rgba(255, 255, 255, 0.8);
    text-decoration: none;
    font-size: 0.9375rem;
    transition: all var(--transition-base);
}

.footer-links a:hover {
    color: var(--white);
    padding-left: var(--spacing-xs);
}

.footer-contact {
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: var(--spacing-md);
}

.footer-contact li {
    display: flex;
    gap: var(--spacing-sm);
    font-size: 0.9375rem;
    color: rgba(255, 255, 255, 0.8);
    line-height: 1.6;
}

.footer-contact i {
    color: var(--accent-color);
    flex-shrink: 0;
    margin-top: 2px;
}

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

.footer-bottom p {
    color: rgba(255, 255, 255, 0.7);
    font-size: 0.875rem;
    margin-bottom: var(--spacing-xs);
}

.footer-credit {
    color: rgba(255, 255, 255, 0.6);
}

.footer-credit i {
    color: var(--danger-color);
    margin: 0 3px;
}

/* ===================================
   Scroll to Top Button
   =================================== */
.scroll-top {
    position: fixed;
    bottom: 30px;
    right: 30px;
    width: 50px;
    height: 50px;
    background: var(--gradient-primary);
    color: var(--white);
    border: none;
    border-radius: var(--radius-md);
    font-size: 1.25rem;
    cursor: pointer;
    box-shadow: var(--shadow-lg);
    opacity: 0;
    visibility: hidden;
    transition: all var(--transition-base);
    z-index: 999;
}

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

.scroll-top:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-xl);
}

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

/* Tablet (768px and below) */
@media (max-width: 768px) {
    /* Typography */
    .hero-title {
        font-size: 2.25rem;
    }
    
    .section-title {
        font-size: 2rem;
    }
    
    /* Logo - adjust for mobile */
    .logo-text {
        font-size: 1.25rem;
    }
    
    .logo-svg {
        width: 35px;
        height: 35px;
    }
    
    /* Navigation */
    .hamburger {
        display: flex;
    }
    
    .nav-menu {
        position: fixed;
        left: -100%;
        top: 70px;
        flex-direction: column;
        background-color: var(--white);
        width: 100%;
        text-align: center;
        transition: left var(--transition-base);
        box-shadow: var(--shadow-lg);
        padding: var(--spacing-lg) 0;
    }
    
    .nav-menu.active {
        left: 0;
    }
    
    .nav-link {
        padding: var(--spacing-md);
    }
    
    /* Hero */
    .hero-container {
        grid-template-columns: 1fr;
    }
    
    .hero-image {
        display: none;
    }
    
    .hero-buttons {
        flex-direction: column;
    }
    
    .btn {
        width: 100%;
        justify-content: center;
    }
    
    /* Features */
    .features-grid {
        grid-template-columns: 1fr;
    }
    
    /* Services */
    .services-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    /* Contact */
    .contact-content {
        grid-template-columns: 1fr;
    }
    
    /* Footer */
    .footer-content {
        grid-template-columns: repeat(2, 1fr);
        gap: var(--spacing-lg);
    }
}

/* Mobile (480px and below) */
@media (max-width: 480px) {
    /* Typography */
    .hero-title {
        font-size: 1.875rem;
    }
    
    .section-title {
        font-size: 1.75rem;
    }
    
    /* Spacing */
    section {
        padding: var(--spacing-xl) 0;
    }
    
    .container {
        padding: 0 var(--spacing-sm);
    }
    
    /* Hero */
    .hero {
        padding-top: calc(var(--spacing-xl) + 80px);
    }
    
    .trust-badges {
        flex-direction: column;
        gap: var(--spacing-sm);
    }
    
    /* Services */
    .services-grid {
        grid-template-columns: 1fr;
    }
    
    .service-card {
        padding: var(--spacing-lg);
    }
    
    /* Contact */
    .contact-form-container {
        padding: var(--spacing-lg);
    }
    
    /* Footer */
    .footer-content {
        grid-template-columns: 1fr;
    }
    
    /* Scroll to Top */
    .scroll-top {
        bottom: 20px;
        right: 20px;
        width: 45px;
        height: 45px;
        font-size: 1.125rem;
    }
}

/* ===================================
   Animations & Utilities
   =================================== */

/* Fade In Animation */
@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* Loading State */
.loading {
    pointer-events: none;
    opacity: 0.6;
}

/* Success Message */
.success-message {
    background-color: var(--success-color);
    color: var(--white);
    padding: var(--spacing-md);
    border-radius: var(--radius-md);
    margin-top: var(--spacing-md);
    text-align: center;
    animation: fadeIn var(--transition-base);
}

/* Error Message */
.error-message {
    background-color: var(--danger-color);
    color: var(--white);
    padding: var(--spacing-md);
    border-radius: var(--radius-md);
    margin-top: var(--spacing-md);
    text-align: center;
    animation: fadeIn var(--transition-base);
}

/* ===================================
   Print Styles
   =================================== */
@media print {
    .navbar,
    .hero-buttons,
    .scroll-top,
    .hamburger {
        display: none !important;
    }
    
    body {
        font-size: 12pt;
        line-height: 1.5;
        color: #000;
    }
    
    section {
        page-break-inside: avoid;
    }
}