/* Main CSS Styles for InnovaticaTECH Website */

/* Variables */
:root {
    /* Color Palette */
    --primary-color: #0066cc; /* Primary blue */
    --secondary-color: #00a896; /* Teal accent */
    --dark-blue: #003366; /* Dark blue for contrast */
    --light-blue: #e6f2ff; /* Light blue for backgrounds */
    --gray-dark: #333333; /* Dark gray for text */
    --gray-medium: #666666; /* Medium gray for secondary text */
    --gray-light: #f5f5f5; /* Light gray for backgrounds */
    --white: #ffffff; /* White */
    --black: #000000; /* Black */
    --error: #d9534f; /* Red for errors */
    --success: #5cb85c; /* Green for success */
    --warning: #f0ad4e; /* Yellow for warnings */
    
    /* Typography */
    --font-primary: 'Roboto', sans-serif;
    --font-secondary: 'Open Sans', sans-serif;
    --font-size-base: 16px;
    --line-height-base: 1.5;
    
    /* Spacing */
    --spacing-xs: 0.25rem;
    --spacing-sm: 0.5rem;
    --spacing-md: 1rem;
    --spacing-lg: 2rem;
    --spacing-xl: 3rem;
    
    /* Border Radius */
    --border-radius-sm: 4px;
    --border-radius-md: 8px;
    --border-radius-lg: 16px;
    
    /* Box Shadow */
    --box-shadow-sm: 0 2px 4px rgba(0, 0, 0, 0.1);
    --box-shadow-md: 0 4px 8px rgba(0, 0, 0, 0.1);
    --box-shadow-lg: 0 8px 16px rgba(0, 0, 0, 0.1);
    
    /* Transitions */
    --transition-fast: 0.2s ease;
    --transition-normal: 0.3s ease;
    --transition-slow: 0.5s ease;
    
    /* Container Width */
    --container-max-width: 1200px;
}

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

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

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

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

a:hover {
    color: var(--dark-blue);
}

ul {
    list-style: none;
}

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

/* Typography */
h1, h2, h3, h4, h5, h6 {
    font-family: var(--font-secondary);
    font-weight: 700;
    line-height: 1.2;
    margin-bottom: var(--spacing-md);
    color: var(--dark-blue);
}

h1 {
    font-size: 2.5rem;
}

h2 {
    font-size: 2rem;
}

h3 {
    font-size: 1.75rem;
}

h4 {
    font-size: 1.5rem;
}

h5 {
    font-size: 1.25rem;
}

h6 {
    font-size: 1rem;
}

p {
    margin-bottom: var(--spacing-md);
}

/* Container */
.container {
    width: 100%;
    max-width: var(--container-max-width);
    margin: 0 auto;
    padding: 0 var(--spacing-md);
}

/* Buttons */
.btn {
    display: inline-block;
    padding: 0.75rem 1.5rem;
    border-radius: var(--border-radius-md);
    font-weight: 600;
    text-align: center;
    cursor: pointer;
    transition: all var(--transition-normal);
    border: none;
    font-size: 1rem;
}

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

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

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

.btn-secondary:hover {
    background-color: #008b7d; /* Darker teal */
    color: var(--white);
}

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

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

/* Header */
header {
    background-color: var(--white);
    box-shadow: var(--box-shadow-sm);
    position: sticky;
    top: 0;
    z-index: 100;
    padding: var(--spacing-md) 0;
}

header .container {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo a {
    display: flex;
    align-items: center;
    color: var(--dark-blue);
}

.logo h1 {
    font-size: 1.75rem;
    margin-bottom: 0;
}

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

.nav-links {
    display: flex;
    gap: var(--spacing-lg);
}

.nav-links a {
    color: var(--gray-medium);
    font-weight: 500;
    position: relative;
}

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

.nav-links a.active::after {
    content: '';
    position: absolute;
    bottom: -5px;
    left: 0;
    width: 100%;
    height: 2px;
    background-color: var(--primary-color);
}

.mobile-menu {
    display: none;
    font-size: 1.5rem;
    cursor: pointer;
    color: var(--gray-dark);
}

/* Hero Section */
.hero {
    background: linear-gradient(135deg, var(--light-blue) 0%, #d6e9ff 100%);
    padding: var(--spacing-xl) 0;
    position: relative;
    overflow: hidden;
}

.hero::before {
    content: '';
    position: absolute;
    top: 0;
    right: 0;
    width: 50%;
    height: 100%;
    background-image: url('../images/hero-bg.svg');
    background-repeat: no-repeat;
    background-position: center right;
    background-size: contain;
    opacity: 0.2;
}

.hero-content {
    max-width: 600px;
    position: relative;
    z-index: 1;
}

.hero h2 {
    font-size: 3rem;
    margin-bottom: var(--spacing-md);
    color: var(--dark-blue);
}

.hero p {
    font-size: 1.25rem;
    margin-bottom: var(--spacing-lg);
    color: var(--gray-medium);
}

.cta-buttons {
    display: flex;
    gap: var(--spacing-md);
}

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

.section-title {
    text-align: center;
    margin-bottom: var(--spacing-xl);
    position: relative;
}

.section-title::after {
    content: '';
    position: absolute;
    bottom: -10px;
    left: 50%;
    transform: translateX(-50%);
    width: 80px;
    height: 3px;
    background-color: var(--primary-color);
}

/* Services Section */
.services-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: var(--spacing-lg);
}

.service-card {
    background-color: var(--white);
    border-radius: var(--border-radius-md);
    padding: var(--spacing-lg);
    box-shadow: var(--box-shadow-md);
    text-align: center;
    transition: transform var(--transition-normal);
}

.service-card:hover {
    transform: translateY(-10px);
}

.service-card i {
    font-size: 3rem;
    color: var(--primary-color);
    margin-bottom: var(--spacing-md);
}

.service-card h3 {
    margin-bottom: var(--spacing-sm);
}

/* Test Highlights */
.test-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: var(--spacing-lg);
}

.test-card {
    background-color: var(--white);
    border-radius: var(--border-radius-md);
    overflow: hidden;
    box-shadow: var(--box-shadow-md);
    transition: transform var(--transition-normal);
}

.test-card:hover {
    transform: translateY(-10px);
}

.test-card img {
    width: 100%;
    height: 200px;
    object-fit: contain;
    background-color: var(--light-blue);
    padding: var(--spacing-md);
}

.test-card h3 {
    padding: var(--spacing-md) var(--spacing-md) var(--spacing-sm);
    margin-bottom: 0;
}

.test-card p {
    padding: 0 var(--spacing-md) var(--spacing-md);
    color: var(--gray-medium);
}

.view-more {
    text-align: center;
    margin-top: var(--spacing-xl);
}

/* Partners Section */
.partners {
    background-color: var(--gray-light);
}

.partners-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: var(--spacing-lg);
    align-items: center;
}

.partner-logo {
    display: flex;
    justify-content: center;
    align-items: center;
    padding: var(--spacing-md);
    filter: grayscale(100%);
    opacity: 0.7;
    transition: all var(--transition-normal);
}

.partner-logo:hover {
    filter: grayscale(0%);
    opacity: 1;
}

.partner-logo img {
    max-height: 80px;
}

/* CTA Section */
.cta-section {
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--dark-blue) 100%);
    color: var(--white);
    text-align: center;
}

.cta-content h2,
.cta-content p {
    color: var(--white);
}

.cta-content h2 {
    margin-bottom: var(--spacing-sm);
}

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

/* Footer */
footer {
    background-color: var(--dark-blue);
    color: var(--white);
    padding: var(--spacing-xl) 0 var(--spacing-md);
}

.footer-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: var(--spacing-xl);
    margin-bottom: var(--spacing-xl);
}

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

.footer-col h4 {
    color: var(--white);
    margin-bottom: var(--spacing-md);
    font-size: 1.2rem;
}

.footer-col p {
    color: #b3c5d7;
    margin-bottom: var(--spacing-md);
}

.footer-col ul li {
    margin-bottom: var(--spacing-sm);
}

.footer-col ul li a {
    color: #b3c5d7;
    transition: color var(--transition-fast);
}

.footer-col ul li a:hover {
    color: var(--white);
}

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

.social-icons a {
    display: flex;
    justify-content: center;
    align-items: center;
    width: 40px;
    height: 40px;
    background-color: rgba(255, 255, 255, 0.1);
    border-radius: 50%;
    color: var(--white);
    transition: all var(--transition-normal);
}

.social-icons a:hover {
    background-color: var(--primary-color);
    transform: translateY(-3px);
}

.contact-info li {
    display: flex;
    align-items: flex-start;
    gap: var(--spacing-sm);
    margin-bottom: var(--spacing-md);
    color: #b3c5d7;
}

.contact-info li i {
    color: var(--primary-color);
    margin-top: 5px;
}

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

.footer-bottom p {
    margin-bottom: 0;
    color: #b3c5d7;
}

.footer-links {
    display: flex;
    gap: var(--spacing-md);
}

.footer-links a {
    color: #b3c5d7;
    font-size: 0.9rem;
}

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

/* Responsive Styles */
@media (max-width: 992px) {
    h1 {
        font-size: 2.25rem;
    }
    
    h2 {
        font-size: 1.75rem;
    }
    
    .hero h2 {
        font-size: 2.5rem;
    }
    
    .nav-links {
        gap: var(--spacing-md);
    }
}

@media (max-width: 768px) {
    .nav-links {
        display: none;
        position: absolute;
        top: 100%;
        left: 0;
        width: 100%;
        background-color: var(--white);
        flex-direction: column;
        padding: var(--spacing-md);
        box-shadow: var(--box-shadow-md);
    }
    
    .nav-links.active {
        display: flex;
    }
    
    .mobile-menu {
        display: block;
    }
    
    .hero h2 {
        font-size: 2rem;
    }
    
    .hero p {
        font-size: 1.1rem;
    }
    
    .cta-buttons {
        flex-direction: column;
        gap: var(--spacing-sm);
    }
    
    .cta-buttons .btn {
        width: 100%;
    }
    
    .footer-bottom {
        flex-direction: column;
        gap: var(--spacing-md);
        text-align: center;
    }
}

@media (max-width: 576px) {
    section {
        padding: var(--spacing-lg) 0;
    }
    
    .section-title {
        margin-bottom: var(--spacing-lg);
    }
    
    .hero {
        padding: var(--spacing-lg) 0;
    }
    
    .hero h2 {
        font-size: 1.75rem;
    }
    
    .footer-grid {
        gap: var(--spacing-lg);
    }
    
    .footer-links {
        flex-direction: column;
        gap: var(--spacing-sm);
    }
}

/* Accessibility Styles */
:focus {
    outline: 3px solid var(--primary-color);
    outline-offset: 3px;
}

.sr-only {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    white-space: nowrap;
    border-width: 0;
}

/* Animation Keyframes */
@keyframes fadeIn {
    from { opacity: 0; }
    to { opacity: 1; }
}

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

/* Animation Classes */
.fade-in {
    animation: fadeIn var(--transition-normal) forwards;
}

.slide-in-up {
    animation: slideInUp var(--transition-normal) forwards;
}