/* 
* Brintell Website Styles
* Modern, responsive design for a big data and visualization company
*/

:root {
    /* Color Palette */
    --primary-color: #2563eb;
    --secondary-color: #0f172a;
    --accent-color: #38bdf8;
    --light-color: #f8fafc;
    --dark-color: #1e293b;
    --gray-color: #64748b;
    --border-color: #e2e8f0;
    --success-color: #10b981;
    --warning-color: #f59e0b;
    --error-color: #ef4444;
    
    /* Typography */
    --heading-font: 'Poppins', sans-serif;
    --body-font: 'Roboto', sans-serif;
    
    /* Spacing */
    --spacing-xs: 0.5rem;
    --spacing-sm: 1rem;
    --spacing-md: 1.5rem;
    --spacing-lg: 2rem;
    --spacing-xl: 3rem;
    --spacing-xxl: 5rem;
    
    /* Border Radius */
    --border-radius-sm: 4px;
    --border-radius-md: 8px;
    --border-radius-lg: 16px;
    --border-radius-xl: 24px;
    
    /* Shadows */
    --shadow-sm: 0 1px 3px rgba(0,0,0,0.12), 0 1px 2px rgba(0,0,0,0.24);
    --shadow-md: 0 4px 6px rgba(0,0,0,0.1), 0 1px 3px rgba(0,0,0,0.08);
    --shadow-lg: 0 10px 15px rgba(0,0,0,0.1), 0 4px 6px rgba(0,0,0,0.05);
    --shadow-xl: 0 20px 25px rgba(0,0,0,0.1), 0 10px 10px rgba(0,0,0,0.04);
}

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

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

body {
    font-family: var(--body-font);
    line-height: 1.6;
    color: var(--dark-color);
    background-color: var(--light-color);
    overflow-x: hidden;
}

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

h1 {
    font-size: 2.5rem;
}

h2 {
    font-size: 2rem;
}

h3 {
    font-size: 1.5rem;
}

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

a {
    color: var(--primary-color);
    text-decoration: none;
    transition: color 0.3s ease;
}

a:hover {
    color: var(--accent-color);
}

ul {
    list-style: none;
}

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

/* Container */
.container {
    width: 100%;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--spacing-md);
}

/* Buttons */
.btn-primary, .btn-secondary, .btn-tertiary {
    display: inline-block;
    padding: 0.75rem 1.5rem;
    border-radius: var(--border-radius-md);
    font-weight: 500;
    text-align: center;
    cursor: pointer;
    transition: all 0.3s ease;
    text-transform: uppercase;
    font-size: 0.9rem;
    letter-spacing: 0.5px;
}

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

.btn-primary:hover {
    background-color: #1d4ed8;
    color: white;
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

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

.btn-secondary:hover {
    background-color: var(--primary-color);
    color: white;
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

.btn-tertiary {
    background-color: var(--accent-color);
    color: white;
    padding: 0.5rem 1rem;
    font-size: 0.8rem;
}

.btn-tertiary:hover {
    background-color: #0ea5e9;
    color: white;
    transform: translateY(-2px);
}

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

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

.section-header h2 {
    position: relative;
    display: inline-block;
    margin-bottom: var(--spacing-sm);
}

.section-header h2::after {
    content: '';
    position: absolute;
    bottom: -10px;
    left: 50%;
    transform: translateX(-50%);
    width: 50px;
    height: 3px;
    background-color: var(--accent-color);
}

.section-header p {
    color: var(--gray-color);
    font-size: 1.1rem;
    max-width: 600px;
    margin: 0 auto;
}

/* Header Styles */
#header {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    background-color: white;
    z-index: 1000;
    box-shadow: var(--shadow-sm);
    padding: var(--spacing-sm) 0;
    transition: all 0.3s ease;
}

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

.logo-container {
    display: flex;
    align-items: center;
}

.logo {
    height: 40px;
    width: auto;
}

nav {
    display: flex;
    align-items: center;
}

.nav-links {
    display: flex;
    align-items: center;
}

.nav-links li {
    margin-left: var(--spacing-md);
}

.nav-links li a {
    color: var(--dark-color);
    font-weight: 500;
    transition: all 0.3s ease;
}

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

.mobile-menu-toggle {
    display: none;
    background: none;
    border: none;
    cursor: pointer;
}

.mobile-menu-toggle span {
    display: block;
    width: 25px;
    height: 3px;
    background-color: var(--dark-color);
    margin: 5px 0;
    transition: all 0.3s ease;
}

/* Hero Section */
.hero {
    padding: calc(var(--spacing-xxl) * 2) 0 var(--spacing-xxl);
    background: linear-gradient(135deg, #f0f9ff 0%, #e0f2fe 100%);
    position: relative;
    overflow: hidden;
}

.hero::before {
    content: '';
    position: absolute;
    top: 0;
    right: 0;
    width: 50%;
    height: 100%;
    background-color: rgba(56, 189, 248, 0.05);
    clip-path: polygon(25% 0%, 100% 0%, 100% 100%, 0% 100%);
    z-index: 0;
}

.hero .container {
    position: relative;
    z-index: 1;
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.hero-content {
    flex: 1;
    max-width: 600px;
}

.hero-content h1 {
    font-size: 3rem;
    margin-bottom: var(--spacing-md);
    color: var(--secondary-color);
}

.hero-content p {
    font-size: 1.2rem;
    margin-bottom: var(--spacing-lg);
    color: var(--gray-color);
}

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

.hero-image {
    flex: 1;
    display: flex;
    justify-content: flex-end;
    max-width: 500px;
}

.hero-image img {
    max-width: 100%;
    height: auto;
    border-radius: var(--border-radius-lg);
    box-shadow: var(--shadow-lg);
}

/* Services Section */
.services {
    background-color: white;
}

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

.service-card {
    background-color: white;
    border-radius: var(--border-radius-md);
    padding: var(--spacing-lg);
    box-shadow: var(--shadow-sm);
    transition: all 0.3s ease;
    text-align: center;
}

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

.service-icon {
    width: 80px;
    height: 80px;
    margin: 0 auto var(--spacing-md);
    display: flex;
    align-items: center;
    justify-content: center;
    background-color: rgba(37, 99, 235, 0.1);
    border-radius: 50%;
}

.service-icon img {
    width: 40px;
    height: 40px;
}

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

.service-card p {
    color: var(--gray-color);
}

/* About Section */
.about {
    background-color: #f8fafc;
}

.about-content {
    display: flex;
    align-items: center;
    gap: var(--spacing-xl);
}

.about-image {
    flex: 1;
    max-width: 500px;
}

.about-image img {
    border-radius: var(--border-radius-lg);
    box-shadow: var(--shadow-md);
}

.about-text {
    flex: 1;
}

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

.stats {
    display: flex;
    justify-content: space-between;
    margin-top: var(--spacing-lg);
    flex-wrap: wrap;
}

.stat-item {
    text-align: center;
    min-width: 100px;
}

.stat-item h3 {
    color: var(--primary-color);
    font-size: 2rem;
    margin-bottom: 0;
}

.stat-item p {
    color: var(--gray-color);
    margin-bottom: 0;
    font-weight: 500;
}

/* Solutions Section */
.solutions {
    background-color: white;
}

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

.solution-card {
    background-color: #f8fafc;
    border-radius: var(--border-radius-md);
    padding: var(--spacing-lg);
    transition: all 0.3s ease;
    border-left: 4px solid var(--primary-color);
}

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

.solution-card h3 {
    margin-bottom: var(--spacing-sm);
    color: var(--primary-color);
}

.solution-card p {
    color: var(--gray-color);
    margin-bottom: var(--spacing-md);
}

/* Games Section */
.games {
    background-color: #f0f9ff;
    padding: var(--spacing-xxl) 0;
}

.games-content {
    max-width: 800px;
    margin: 0 auto;
}

.games-content p {
    text-align: center;
    margin-bottom: var(--spacing-lg);
}

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

.game-link-item, .news-link-item {
    background-color: white;
    border-radius: var(--border-radius-md);
    padding: var(--spacing-md);
    text-align: center;
    box-shadow: var(--shadow-sm);
    transition: all 0.3s ease;
}

.game-link-item:hover, .news-link-item:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-md);
}

.game-link-item a, .news-link-item a {
    font-weight: bold;
    font-size: 1.1rem;
    color: var(--primary-color);
    margin-bottom: var(--spacing-sm);
    display: block;
}

.news-links {
    margin-top: var(--spacing-xl);
}

.news-links > p {
    margin-bottom: var(--spacing-md);
}

/* Contact Section */
.contact {
    background-color: white;
}

.contact-content {
    display: flex;
    gap: var(--spacing-xl);
}

.contact-form {
    flex: 1.5;
    background-color: white;
    padding: var(--spacing-lg);
    border-radius: var(--border-radius-md);
    box-shadow: var(--shadow-md);
}

.form-group {
    margin-bottom: var(--spacing-md);
}

.form-group label {
    display: block;
    margin-bottom: var(--spacing-xs);
    font-weight: 500;
    color: var(--secondary-color);
}

.form-group input,
.form-group textarea {
    width: 100%;
    padding: var(--spacing-sm);
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius-sm);
    font-family: var(--body-font);
    transition: all 0.3s ease;
}

.form-group input:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--accent-color);
    box-shadow: 0 0 0 3px rgba(56, 189, 248, 0.2);
}

.contact-info {
    flex: 1;
    display: flex;
    flex-direction: column;
    justify-content: space-between;
}

.info-item {
    margin-bottom: var(--spacing-lg);
}

.info-item h3 {
    color: var(--primary-color);
    margin-bottom: var(--spacing-xs);
}

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

.social-links a {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 40px;
    height: 40px;
    background-color: var(--primary-color);
    color: white;
    border-radius: 50%;
    transition: all 0.3s ease;
}

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

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

.footer-content {
    display: flex;
    flex-wrap: wrap;
    justify-content: space-between;
    margin-bottom: var(--spacing-xl);
}

.footer-logo {
    flex: 1;
    min-width: 250px;
    margin-bottom: var(--spacing-lg);
}

.footer-logo .logo {
    margin-bottom: var(--spacing-sm);
    filter: brightness(0) invert(1);
}

.footer-links {
    flex: 2;
    display: flex;
    justify-content: space-between;
    flex-wrap: wrap;
}

.link-group {
    min-width: 150px;
    margin-bottom: var(--spacing-lg);
}

.link-group h4 {
    color: white;
    margin-bottom: var(--spacing-md);
    font-size: 1.1rem;
}

.link-group ul li {
    margin-bottom: var(--spacing-xs);
}

.link-group ul li a {
    color: #cbd5e1;
    transition: all 0.3s ease;
}

.link-group ul li a:hover {
    color: var(--accent-color);
}

.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-favicon {
    display: flex;
    align-items: center;
}

.footer-favicon img {
    filter: brightness(0) invert(1);
}

/* Responsive Styles */
@media (max-width: 1024px) {
    html {
        font-size: 15px;
    }

    .hero-content h1 {
        font-size: 2.5rem;
    }

    .about-content,
    .contact-content {
        flex-direction: column;
    }
    
    .about-image,
    .about-text {
        max-width: 100%;
    }
}

@media (max-width: 768px) {
    html {
        font-size: 14px;
    }

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

    .hero-content {
        text-align: center;
        margin-bottom: var(--spacing-xl);
    }

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

    .hero-image {
        justify-content: center;
        margin: 0 auto;
    }

    .mobile-menu-toggle {
        display: block;
    }

    .nav-links {
        position: fixed;
        top: 70px;
        left: 0;
        width: 100%;
        background-color: white;
        flex-direction: column;
        align-items: flex-start;
        padding: var(--spacing-md);
        box-shadow: var(--shadow-md);
        transform: translateY(-150%);
        transition: transform 0.3s ease;
        opacity: 0;
    }

    .nav-links.active {
        transform: translateY(0);
        opacity: 1;
    }

    .nav-links li {
        margin: var(--spacing-sm) 0;
        width: 100%;
    }

    .nav-links li a {
        display: block;
        padding: var(--spacing-sm);
    }

    .services-grid,
    .solutions-grid,
    .game-links {
        grid-template-columns: 1fr;
    }

    .stats {
        justify-content: center;
        gap: var(--spacing-lg);
    }

    .footer-content {
        flex-direction: column;
    }

    .footer-links {
        flex-direction: column;
        margin-top: var(--spacing-lg);
    }

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

    .footer-bottom p {
        margin-bottom: var(--spacing-sm);
    }
}

@media (max-width: 480px) {
    section {
        padding: var(--spacing-xl) 0;
    }

    .hero {
        padding-top: calc(var(--spacing-xl) + 70px);
    }

    .hero-content h1 {
        font-size: 2rem;
    }

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

    .btn-primary, .btn-secondary {
        width: 100%;
        margin-bottom: var(--spacing-sm);
    }
}