/* ===================================
   Quant Orbit - Main Stylesheet
   Color Palette: Green (#00D26A) on Dark (#1A1A1A)
   =================================== */

/* CSS Variables */
:root {
    /* Colors */
    --primary: #00D26A;
    --primary-dark: #00B85C;
    --primary-light: #00E676;
    --primary-glow: rgba(0, 210, 106, 0.3);

    --dark-900: #0D0D0D;
    --dark-800: #1A1A1A;
    --dark-700: #242424;
    --dark-600: #2D2D2D;
    --dark-500: #3D3D3D;

    --light-100: #FFFFFF;
    --light-200: #F5F5F5;
    --light-300: #E0E0E0;
    --light-400: #BDBDBD;
    --light-500: #9E9E9E;

    /* Typography */
    --font-primary: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
    --font-heading: 'Space Grotesk', sans-serif;

    /* Spacing */
    --section-padding: 120px;
    --container-width: 1200px;

    /* Transitions */
    --transition-fast: 0.2s ease;
    --transition-normal: 0.3s ease;
    --transition-slow: 0.5s ease;

    /* Border Radius */
    --radius-sm: 4px;
    --radius-md: 8px;
    --radius-lg: 16px;
    --radius-xl: 24px;
}

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

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

body {
    font-family: var(--font-primary);
    background-color: var(--dark-800);
    color: var(--light-300);
    line-height: 1.6;
    overflow-x: hidden;
}

/* Typography */
h1, h2, h3, h4, h5, h6 {
    font-family: var(--font-heading);
    font-weight: 600;
    color: var(--light-100);
    line-height: 1.2;
}

h1 { font-size: clamp(2.5rem, 5vw, 4rem); }
h2 { font-size: clamp(2rem, 4vw, 3rem); }
h3 { font-size: clamp(1.25rem, 2vw, 1.5rem); }

p {
    color: var(--light-400);
}

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

a:hover {
    color: var(--primary-light);
}

/* Utility Classes */
.container {
    max-width: var(--container-width);
    margin: 0 auto;
    padding: 0 24px;
}

.text-gradient {
    background: linear-gradient(135deg, var(--primary) 0%, var(--primary-light) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.lead {
    font-size: 1.25rem;
    color: var(--light-300);
    line-height: 1.7;
}

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 12px 28px;
    font-family: var(--font-primary);
    font-size: 0.95rem;
    font-weight: 500;
    border-radius: var(--radius-md);
    border: none;
    cursor: pointer;
    transition: var(--transition-normal);
    text-decoration: none;
}

.btn-primary {
    background: var(--primary);
    color: var(--dark-900);
}

.btn-primary:hover {
    background: var(--primary-light);
    color: var(--dark-900);
    transform: translateY(-2px);
    box-shadow: 0 8px 30px var(--primary-glow);
}

.btn-outline {
    background: transparent;
    color: var(--light-100);
    border: 1px solid var(--dark-500);
}

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

.btn-large {
    padding: 16px 36px;
    font-size: 1rem;
}

.btn-full {
    width: 100%;
}

/* Section Styling */
.section-header {
    margin-bottom: 60px;
}

.section-header.center {
    text-align: center;
}

.section-tag {
    display: inline-block;
    padding: 6px 16px;
    background: rgba(0, 210, 106, 0.1);
    color: var(--primary);
    font-size: 0.85rem;
    font-weight: 500;
    border-radius: 50px;
    margin-bottom: 16px;
    text-transform: uppercase;
    letter-spacing: 1px;
}

.section-title {
    margin-bottom: 16px;
}

.section-subtitle {
    font-size: 1.125rem;
    color: var(--light-500);
    max-width: 600px;
}

.section-header.center .section-subtitle {
    margin: 0 auto;
}

/* ===================================
   Navigation
   =================================== */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    padding: 20px 0;
    transition: var(--transition-normal);
}

.navbar.scrolled {
    background: rgba(13, 13, 13, 0.95);
    backdrop-filter: blur(10px);
    padding: 12px 0;
    border-bottom: 1px solid var(--dark-600);
}

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

.logo img {
    height: 45px;
    width: auto;
}

.nav-links {
    display: flex;
    align-items: center;
    gap: 40px;
    list-style: none;
}

.nav-links a {
    color: var(--light-300);
    font-size: 0.95rem;
    font-weight: 400;
    transition: var(--transition-fast);
}

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

.nav-links .btn {
    margin-left: 20px;
}

/* Mobile Menu Button */
.mobile-menu-btn {
    display: none;
    flex-direction: column;
    gap: 5px;
    background: none;
    border: none;
    cursor: pointer;
    padding: 5px;
}

.mobile-menu-btn span {
    display: block;
    width: 24px;
    height: 2px;
    background: var(--light-100);
    transition: var(--transition-fast);
}

/* ===================================
   Hero Section
   =================================== */
.hero {
    position: relative;
    min-height: 100vh;
    display: flex;
    align-items: center;
    padding: 120px 0 80px;
    overflow: hidden;
}

.hero-bg {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background:
        radial-gradient(ellipse at 20% 80%, rgba(0, 210, 106, 0.08) 0%, transparent 50%),
        radial-gradient(ellipse at 80% 20%, rgba(0, 210, 106, 0.05) 0%, transparent 50%),
        linear-gradient(180deg, var(--dark-900) 0%, var(--dark-800) 100%);
}

.hero-content {
    position: relative;
    max-width: 800px;
}

.hero-title {
    margin-bottom: 24px;
    font-weight: 700;
}

.hero-subtitle {
    font-size: 1.25rem;
    color: var(--light-400);
    margin-bottom: 40px;
    max-width: 600px;
}

.hero-cta {
    display: flex;
    gap: 16px;
    margin-bottom: 80px;
}

.hero-stats {
    display: flex;
    gap: 60px;
}

.stat {
    display: flex;
    flex-direction: column;
}

.stat-number {
    font-family: var(--font-heading);
    font-size: 2.5rem;
    font-weight: 700;
    color: var(--primary);
}

.stat-label {
    font-size: 0.9rem;
    color: var(--light-500);
    margin-top: 4px;
}

/* Scroll Indicator */
.scroll-indicator {
    position: absolute;
    bottom: 40px;
    left: 50%;
    transform: translateX(-50%);
}

.scroll-indicator span {
    display: block;
    width: 24px;
    height: 40px;
    border: 2px solid var(--dark-500);
    border-radius: 12px;
    position: relative;
}

.scroll-indicator span::before {
    content: '';
    position: absolute;
    top: 8px;
    left: 50%;
    transform: translateX(-50%);
    width: 4px;
    height: 8px;
    background: var(--primary);
    border-radius: 2px;
    animation: scroll 2s infinite;
}

@keyframes scroll {
    0%, 100% { opacity: 1; transform: translateX(-50%) translateY(0); }
    50% { opacity: 0.5; transform: translateX(-50%) translateY(10px); }
}

/* ===================================
   About Section
   =================================== */
.about {
    padding: var(--section-padding) 0;
    background: var(--dark-800);
}

.about-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 80px;
    align-items: center;
}

.about-content p {
    margin-bottom: 20px;
}

.about-content strong {
    color: var(--primary);
}

.about-features {
    display: flex;
    flex-direction: column;
    gap: 16px;
    margin-top: 32px;
}

.feature {
    display: flex;
    align-items: center;
    gap: 12px;
}

.feature-icon {
    width: 24px;
    height: 24px;
    color: var(--primary);
}

.feature span {
    color: var(--light-200);
    font-weight: 500;
}

/* Visual Card */
.visual-card {
    background: var(--dark-700);
    border: 1px solid var(--dark-600);
    border-radius: var(--radius-lg);
    padding: 40px;
}

.visual-header {
    margin-bottom: 24px;
}

.visual-tag {
    font-size: 0.8rem;
    color: var(--light-500);
    text-transform: uppercase;
    letter-spacing: 1px;
}

.visual-card blockquote {
    font-family: var(--font-heading);
    font-size: 1.5rem;
    color: var(--light-100);
    font-style: italic;
    margin-bottom: 32px;
    padding-left: 20px;
    border-left: 3px solid var(--primary);
}

.visual-metrics {
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.metric {
    display: flex;
    align-items: center;
    gap: 10px;
    color: var(--light-300);
}

.metric-icon {
    width: 8px;
    height: 8px;
    border-radius: 50%;
}

.metric-icon.green {
    background: var(--primary);
    box-shadow: 0 0 10px var(--primary-glow);
}

/* ===================================
   Services Section
   =================================== */
.services {
    padding: var(--section-padding) 0;
    background: var(--dark-900);
}

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

.service-card {
    position: relative;
    background: var(--dark-800);
    border: 1px solid var(--dark-600);
    border-radius: var(--radius-lg);
    padding: 40px;
    transition: var(--transition-normal);
}

.service-card:hover {
    border-color: var(--dark-500);
    transform: translateY(-4px);
}

.service-card.featured {
    background: linear-gradient(180deg, var(--dark-700) 0%, var(--dark-800) 100%);
    border-color: var(--primary);
}

.service-badge {
    position: absolute;
    top: -12px;
    left: 24px;
    padding: 6px 16px;
    background: var(--primary);
    color: var(--dark-900);
    font-size: 0.75rem;
    font-weight: 600;
    text-transform: uppercase;
    border-radius: 50px;
}

.service-icon {
    width: 48px;
    height: 48px;
    margin-bottom: 24px;
    color: var(--primary);
}

.service-card h3 {
    margin-bottom: 16px;
}

.service-card p {
    margin-bottom: 24px;
}

.service-features {
    list-style: none;
}

.service-features li {
    position: relative;
    padding-left: 20px;
    margin-bottom: 8px;
    color: var(--light-400);
    font-size: 0.9rem;
}

.service-features li::before {
    content: '';
    position: absolute;
    left: 0;
    top: 8px;
    width: 6px;
    height: 6px;
    background: var(--primary);
    border-radius: 50%;
}

/* ===================================
   Approach Section
   =================================== */
.approach {
    padding: var(--section-padding) 0;
    background: var(--dark-800);
}

.approach-timeline {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 40px;
}

.timeline-item {
    display: flex;
    gap: 24px;
    padding: 32px;
    background: var(--dark-700);
    border-radius: var(--radius-lg);
    border: 1px solid var(--dark-600);
    transition: var(--transition-normal);
}

.timeline-item:hover {
    border-color: var(--primary);
}

.timeline-number {
    font-family: var(--font-heading);
    font-size: 3rem;
    font-weight: 700;
    color: var(--primary);
    opacity: 0.3;
    line-height: 1;
}

.timeline-content h3 {
    margin-bottom: 12px;
}

.timeline-content p {
    font-size: 0.95rem;
}

/* ===================================
   Team Section
   =================================== */
.team {
    padding: var(--section-padding) 0;
    background: var(--dark-900);
}

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

.team-card {
    display: flex;
    gap: 32px;
    padding: 40px;
    background: var(--dark-800);
    border: 1px solid var(--dark-600);
    border-radius: var(--radius-lg);
    transition: var(--transition-normal);
}

.team-card:hover {
    border-color: var(--dark-500);
}

.team-image {
    flex-shrink: 0;
}

.team-placeholder {
    width: 120px;
    height: 120px;
    background: linear-gradient(135deg, var(--dark-600) 0%, var(--dark-700) 100%);
    border: 2px solid var(--primary);
    border-radius: var(--radius-lg);
    display: flex;
    align-items: center;
    justify-content: center;
    font-family: var(--font-heading);
    font-size: 2rem;
    font-weight: 600;
    color: var(--primary);
}

.team-info h3 {
    margin-bottom: 4px;
}

.team-role {
    display: block;
    color: var(--primary);
    font-weight: 500;
    margin-bottom: 16px;
}

.team-info p {
    margin-bottom: 16px;
    font-size: 0.95rem;
}

.team-credentials {
    display: flex;
    flex-direction: column;
    gap: 6px;
}

.team-credentials span {
    font-size: 0.85rem;
    color: var(--light-500);
    padding-left: 16px;
    position: relative;
}

.team-credentials span::before {
    content: '';
    position: absolute;
    left: 0;
    top: 8px;
    width: 6px;
    height: 2px;
    background: var(--primary);
}

/* ===================================
   Contact Section
   =================================== */
.contact {
    padding: var(--section-padding) 0;
    background: var(--dark-800);
}

.contact-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 80px;
}

.contact-info .section-title {
    margin-bottom: 24px;
}

.contact-info > p {
    margin-bottom: 40px;
    font-size: 1.1rem;
}

.contact-details {
    display: flex;
    flex-direction: column;
    gap: 32px;
}

.contact-item {
    display: flex;
    gap: 16px;
}

.contact-icon {
    flex-shrink: 0;
    width: 48px;
    height: 48px;
    background: rgba(0, 210, 106, 0.1);
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--primary);
}

.contact-icon svg {
    width: 24px;
    height: 24px;
}

.contact-item h4 {
    font-size: 1rem;
    margin-bottom: 8px;
}

.contact-item p {
    font-size: 0.95rem;
    line-height: 1.7;
}

/* Contact Form */
.contact-form-wrapper {
    background: var(--dark-700);
    border: 1px solid var(--dark-600);
    border-radius: var(--radius-lg);
    padding: 40px;
}

.contact-form {
    display: flex;
    flex-direction: column;
    gap: 24px;
}

.form-group {
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.form-group label {
    font-size: 0.9rem;
    font-weight: 500;
    color: var(--light-300);
}

.form-group input,
.form-group textarea {
    padding: 14px 18px;
    background: var(--dark-800);
    border: 1px solid var(--dark-500);
    border-radius: var(--radius-md);
    color: var(--light-100);
    font-family: var(--font-primary);
    font-size: 1rem;
    transition: var(--transition-fast);
}

.form-group input:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--primary);
    box-shadow: 0 0 0 3px var(--primary-glow);
}

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

/* ===================================
   Footer
   =================================== */
.footer {
    padding: 80px 0 40px;
    background: var(--dark-900);
    border-top: 1px solid var(--dark-600);
}

.footer-content {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr;
    gap: 60px;
    margin-bottom: 60px;
}

.footer-logo {
    height: 40px;
    margin-bottom: 16px;
}

.footer-brand p {
    font-size: 0.95rem;
    max-width: 300px;
}

.footer-links h4 {
    font-size: 1rem;
    margin-bottom: 20px;
    color: var(--light-200);
}

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

.footer-links li {
    margin-bottom: 12px;
}

.footer-links a {
    color: var(--light-500);
    font-size: 0.95rem;
    transition: var(--transition-fast);
}

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

.footer-bottom {
    padding-top: 40px;
    border-top: 1px solid var(--dark-700);
    text-align: center;
}

.footer-bottom p {
    font-size: 0.9rem;
    color: var(--light-500);
}

.footer-bottom .disclaimer {
    margin-top: 12px;
    font-size: 0.8rem;
    color: var(--light-500);
    opacity: 0.7;
}

/* ===================================
   Responsive Design
   =================================== */
@media (max-width: 1024px) {
    :root {
        --section-padding: 80px;
    }

    .about-grid,
    .contact-grid {
        gap: 60px;
    }

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

    .services-grid .service-card:last-child {
        grid-column: span 2;
        max-width: 50%;
        margin: 0 auto;
    }
}

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

    /* Navigation */
    .nav-links {
        position: fixed;
        top: 0;
        right: -100%;
        width: 80%;
        max-width: 320px;
        height: 100vh;
        background: var(--dark-900);
        flex-direction: column;
        justify-content: center;
        padding: 40px;
        transition: var(--transition-normal);
        border-left: 1px solid var(--dark-600);
    }

    .nav-links.active {
        right: 0;
    }

    .nav-links .btn {
        margin: 20px 0 0;
    }

    .mobile-menu-btn {
        display: flex;
        z-index: 1001;
    }

    .mobile-menu-btn.active span:nth-child(1) {
        transform: rotate(45deg) translate(5px, 5px);
    }

    .mobile-menu-btn.active span:nth-child(2) {
        opacity: 0;
    }

    .mobile-menu-btn.active span:nth-child(3) {
        transform: rotate(-45deg) translate(5px, -5px);
    }

    /* Hero */
    .hero-cta {
        flex-direction: column;
    }

    .hero-stats {
        flex-direction: column;
        gap: 24px;
    }

    /* About */
    .about-grid {
        grid-template-columns: 1fr;
    }

    /* Services */
    .services-grid {
        grid-template-columns: 1fr;
    }

    .services-grid .service-card:last-child {
        grid-column: span 1;
        max-width: 100%;
    }

    /* Approach */
    .approach-timeline {
        grid-template-columns: 1fr;
    }

    /* Team */
    .team-grid {
        grid-template-columns: 1fr;
    }

    .team-card {
        flex-direction: column;
        text-align: center;
    }

    .team-image {
        display: flex;
        justify-content: center;
    }

    .team-credentials span {
        padding-left: 0;
    }

    .team-credentials span::before {
        display: none;
    }

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

    /* Footer */
    .footer-content {
        grid-template-columns: 1fr;
        gap: 40px;
        text-align: center;
    }

    .footer-brand p {
        max-width: 100%;
    }
}

@media (max-width: 480px) {
    .btn-large {
        padding: 14px 28px;
    }

    .timeline-item {
        flex-direction: column;
        gap: 16px;
    }

    .timeline-number {
        font-size: 2rem;
    }

    .team-card {
        padding: 24px;
    }

    .contact-form-wrapper {
        padding: 24px;
    }
}

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

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

/* Utility: Hide elements for animation */
[data-animate] {
    opacity: 0;
    transform: translateY(30px);
    transition: opacity 0.6s ease, transform 0.6s ease;
}

[data-animate].animated {
    opacity: 1;
    transform: translateY(0);
}