/* ========================================
   Veridian Sphere LLC - Main Stylesheet
   ======================================== */

:root {
    /* Color Palette */
    --emerald-green: #10b981;
    --dark-emerald: #059669;
    --charcoal: #1f2937;
    --dark-charcoal: #111827;
    --white: #ffffff;
    --light-gray: #f3f4f6;
    --medium-gray: #9ca3af;
    --deep-blue: #1e40af;
    --teal: #0d9488;
    
    /* Typography */
    --font-primary: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    --font-heading: 'Plus Jakarta Sans', 'Inter', sans-serif;
    
    /* Spacing */
    --section-padding: 5rem 0;
    --container-max-width: 1200px;
    
    /* Transitions */
    --transition-smooth: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

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

html {
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-primary);
    color: var(--charcoal);
    line-height: 1.6;
    background-color: var(--white);
    overflow-x: hidden;
}

/* ========================================
   Typography
   ======================================== */

h1, h2, h3, h4, h5, h6 {
    font-family: var(--font-heading);
    font-weight: 700;
    line-height: 1.2;
    color: var(--dark-charcoal);
}

h1 {
    font-size: 3.5rem;
    margin-bottom: 1.5rem;
}

h2 {
    font-size: 2.5rem;
    margin-bottom: 1.5rem;
}

h3 {
    font-size: 1.75rem;
    margin-bottom: 1rem;
}

p {
    font-size: 1.125rem;
    line-height: 1.8;
    color: var(--charcoal);
    margin-bottom: 1rem;
}

/* ========================================
   Navigation
   ======================================== */

.navbar {
    position: fixed;
    top: 0;
    width: 100%;
    background-color: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    box-shadow: 0 1px 3px rgba(0, 0, 0, 0.1);
    z-index: 1000;
    transition: var(--transition-smooth);
}

.navbar.scrolled {
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
}

.nav-container {
    max-width: var(--container-max-width);
    margin: 0 auto;
    padding: 1rem 2rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--emerald-green);
    text-decoration: none;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.logo-icon {
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.logo-icon img {
    width: 100%;
    height: 100%;
    object-fit: contain;
}

.logo-text {
    display: flex;
    flex-direction: column;
    line-height: 1.2;
}

.logo-company {
    font-size: 1.5rem;
    color: var(--dark-charcoal);
}

.logo-tagline {
    font-size: 0.5rem;
    color: var(--emerald-green);
    text-transform: uppercase;
    letter-spacing: 0.5px;
    font-weight: 500;
}

.nav-links {
    display: flex;
    list-style: none;
    gap: 2rem;
    align-items: center;
}

.nav-links a {
    color: var(--charcoal);
    text-decoration: none;
    font-weight: 500;
    transition: var(--transition-smooth);
    position: relative;
}

.nav-links a::after {
    content: '';
    position: absolute;
    bottom: -5px;
    left: 0;
    width: 0;
    height: 2px;
    background-color: var(--emerald-green);
    transition: var(--transition-smooth);
}

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

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

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

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

.hero {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, #f0fdf4 0%, #ecfeff 100%);
    position: relative;
    overflow: hidden;
    padding-top: 80px;
}

.hero.hero-with-bg {
    background: linear-gradient(135deg, rgba(16, 185, 129, 0.45) 0%, rgba(13, 148, 136, 0.9) 100%),
                url('../images/hero-collaboration.jpg') center/cover no-repeat;
    background-attachment: fixed;
}

/* Fallback for when JPG is added */
.hero.hero-with-bg.hero-jpg {
    background: linear-gradient(135deg, rgba(16, 185, 129, 0.85) 0%, rgba(13, 148, 136, 0.9) 100%),
                url('../images/hero-collaboration.jpg') center/cover no-repeat;
    background-attachment: fixed;
}

.hero.hero-with-bg .hero-content h1,
.hero.hero-with-bg .hero-content .hero-tagline,
.hero.hero-with-bg .hero-content .hero-description {
    color: var(--white);
    text-shadow: 0 2px 4px rgba(0, 0, 0, 0.2);
}

.hero::before {
    content: '';
    position: absolute;
    top: -50%;
    right: -10%;
    width: 70%;
    height: 150%;
    background: radial-gradient(circle, rgba(16, 185, 129, 0.1) 0%, transparent 70%);
    border-radius: 50%;
}

.hero.hero-with-bg::before {
    display: none;
}

.hero-container {
    max-width: var(--container-max-width);
    margin: 0 auto;
    padding: 2rem;
    text-align: center;
    position: relative;
    z-index: 1;
}

.hero-content {
    opacity: 0;
    animation: fadeInUp 1s ease-out forwards;
}

.hero h1 {
    font-size: 4rem;
    color: var(--dark-charcoal);
    margin-bottom: 1rem;
}

.hero-tagline {
    font-size: 1.5rem;
    color: var(--emerald-green);
    font-weight: 600;
    margin-bottom: 2rem;
}

.hero-description {
    font-size: 1.25rem;
    color: var(--charcoal);
    max-width: 700px;
    margin: 0 auto 3rem;
    line-height: 1.8;
}

.cta-buttons {
    display: flex;
    gap: 1.5rem;
    justify-content: center;
    flex-wrap: wrap;
}

.btn {
    padding: 1rem 2.5rem;
    font-size: 1.125rem;
    font-weight: 600;
    border: none;
    border-radius: 8px;
    cursor: pointer;
    text-decoration: none;
    display: inline-block;
    transition: var(--transition-smooth);
    position: relative;
    overflow: hidden;
}

.btn-primary {
    background: linear-gradient(135deg, var(--emerald-green), var(--dark-emerald));
    color: var(--white);
    box-shadow: 0 4px 6px rgba(16, 185, 129, 0.3);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 12px rgba(16, 185, 129, 0.4);
}

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

.btn-secondary:hover {
    background-color: var(--emerald-green);
    color: var(--white);
    transform: translateY(-2px);
}

/* ========================================
   Sections
   ======================================== */

.section {
    padding: var(--section-padding);
}

.container {
    max-width: var(--container-max-width);
    margin: 0 auto;
    padding: 0 2rem;
}

.section-header {
    text-align: center;
    margin-bottom: 4rem;
}

.section-title {
    position: relative;
    display: inline-block;
    padding-bottom: 1rem;
}

.section-title::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 50%;
    transform: translateX(-50%);
    width: 60px;
    height: 4px;
    background: linear-gradient(90deg, var(--emerald-green), var(--teal));
    border-radius: 2px;
}

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

/* ========================================
   Cards & Grid
   ======================================== */

.grid {
    display: grid;
    gap: 2rem;
}

.grid-2 {
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
}

.grid-3 {
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
}

.card {
    background: var(--white);
    border-radius: 12px;
    padding: 2.5rem;
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.05);
    transition: var(--transition-smooth);
    border: 1px solid rgba(0, 0, 0, 0.05);
}

.card:hover {
    transform: translateY(-8px);
    box-shadow: 0 12px 24px rgba(0, 0, 0, 0.1);
}

.card-icon {
    width: 60px;
    height: 60px;
    background: linear-gradient(135deg, var(--emerald-green), var(--teal));
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.75rem;
    color: var(--white);
    margin-bottom: 1.5rem;
}

.card h3 {
    color: var(--dark-charcoal);
    margin-bottom: 1rem;
}

.card p {
    color: var(--charcoal);
    line-height: 1.8;
}

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

.about-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
    align-items: center;
}

.about-text h2 {
    margin-bottom: 1.5rem;
}

.about-text p {
    margin-bottom: 1.5rem;
}

.value-list {
    list-style: none;
    margin-top: 2rem;
}

.value-list li {
    padding: 1rem 0;
    border-bottom: 1px solid var(--light-gray);
    display: flex;
    align-items: center;
    gap: 1rem;
}

.value-list li:last-child {
    border-bottom: none;
}

.value-icon {
    color: var(--emerald-green);
    font-size: 1.5rem;
}

/* ========================================
   Services Section
   ======================================== */

.services-grid {
    margin-top: 3rem;
}

.service-card {
    position: relative;
    overflow: hidden;
}

.service-number {
    position: absolute;
    top: 1.5rem;
    right: 1.5rem;
    font-size: 3rem;
    font-weight: 700;
    color: rgba(16, 185, 129, 0.1);
}

/* ========================================
   Industries Section
   ======================================== */

.industry-card {
    background: linear-gradient(135deg, var(--light-gray), var(--white));
}

.industry-card h3 {
    color: var(--emerald-green);
}

/* ========================================
   Contact Form
   ======================================== */

.contact-section {
    background: var(--light-gray);
}

.contact-container {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
    align-items: start;
}

.contact-info h2 {
    margin-bottom: 1.5rem;
}

.contact-details {
    margin-top: 2rem;
}

.contact-item {
    display: flex;
    align-items: center;
    gap: 1rem;
    margin-bottom: 1.5rem;
}

.contact-icon {
    width: 40px;
    height: 40px;
    background: linear-gradient(135deg, var(--emerald-green), var(--teal));
    border-radius: 8px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--white);
}

.form-group {
    margin-bottom: 1.5rem;
}

.form-group label {
    display: block;
    margin-bottom: 0.5rem;
    font-weight: 600;
    color: var(--charcoal);
}

.form-group input,
.form-group textarea {
    width: 100%;
    padding: 1rem;
    border: 2px solid var(--light-gray);
    border-radius: 8px;
    font-size: 1rem;
    font-family: var(--font-primary);
    transition: var(--transition-smooth);
}

.form-group input:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--emerald-green);
}

.form-group textarea {
    resize: vertical;
    min-height: 150px;
}

.form-error {
    color: #ef4444;
    font-size: 0.875rem;
    margin-top: 0.25rem;
    display: none;
}

.form-success {
    background-color: #10b981;
    color: white;
    padding: 1rem;
    border-radius: 8px;
    margin-bottom: 1rem;
    display: none;
}

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

footer {
    background-color: var(--dark-charcoal);
    color: var(--white);
    padding: 3rem 2rem 1.5rem;
}

.footer-content {
    max-width: var(--container-max-width);
    margin: 0 auto;
    display: grid;
    grid-template-columns: 2fr 1fr 1fr;
    gap: 3rem;
    margin-bottom: 2rem;
}

.footer-about h3 {
    color: var(--emerald-green);
    margin-bottom: 1rem;
}

.footer-about p {
    color: var(--medium-gray);
    line-height: 1.8;
}

.footer-links h4,
.footer-social h4 {
    color: var(--white);
    margin-bottom: 1rem;
    font-size: 1.125rem;
}

.footer-links ul {
    list-style: none;
}

.footer-links a {
    color: var(--medium-gray);
    text-decoration: none;
    display: block;
    padding: 0.5rem 0;
    transition: var(--transition-smooth);
}

.footer-links a:hover {
    color: var(--emerald-green);
    padding-left: 0.5rem;
}

.social-icons {
    display: flex;
    gap: 1rem;
}

.social-icon {
    width: 40px;
    height: 40px;
    background-color: rgba(255, 255, 255, 0.1);
    border-radius: 8px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--white);
    text-decoration: none;
    transition: var(--transition-smooth);
}

.social-icon:hover {
    background: linear-gradient(135deg, var(--emerald-green), var(--teal));
    transform: translateY(-3px);
}

.footer-bottom {
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    padding-top: 1.5rem;
    text-align: center;
    color: var(--medium-gray);
}

/* ========================================
   Animations
   ======================================== */

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

.fade-in {
    opacity: 0;
    animation: fadeInUp 0.8s ease-out forwards;
}

.fade-in-delay-1 {
    animation-delay: 0.2s;
}

.fade-in-delay-2 {
    animation-delay: 0.4s;
}

.fade-in-delay-3 {
    animation-delay: 0.6s;
}

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

@media (max-width: 768px) {
    h1 {
        font-size: 2.5rem;
    }
    
    h2 {
        font-size: 2rem;
    }
    
    .hero h1 {
        font-size: 2.5rem;
    }
    
    .hero-tagline {
        font-size: 1.25rem;
    }
    
    .hero-description {
        font-size: 1.125rem;
    }
    
    .nav-links {
        position: fixed;
        top: 70px;
        left: -100%;
        width: 100%;
        height: calc(100vh - 70px);
        background-color: var(--white);
        flex-direction: column;
        align-items: flex-start;
        padding: 2rem;
        transition: var(--transition-smooth);
        box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
    }
    
    .nav-links.active {
        left: 0;
    }
    
    .mobile-menu-toggle {
        display: block;
    }
    
    .cta-buttons {
        flex-direction: column;
    }
    
    .about-content,
    .contact-container {
        grid-template-columns: 1fr;
        gap: 2rem;
    }
    
    .footer-content {
        grid-template-columns: 1fr;
        gap: 2rem;
    }
    
    .grid-3 {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 480px) {
    .hero h1 {
        font-size: 2rem;
    }
    
    .section-title {
        font-size: 1.75rem;
    }
    
    .btn {
        padding: 0.875rem 2rem;
        font-size: 1rem;
    }
    
    .card {
        padding: 1.5rem;
    }
}