/* Reset and base styles */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

:root {
    --qt-green: #41CD52;
    --qt-green-light: #52DD62;
    --qt-green-dark: #36B045;
    --qt-dark: #1C1C1C;
    --qt-gray: #2d2d2d;
    --qt-light: #F5F5F5;
    --text-dark: #2C3E50;
    --text-light: #6C757D;
    --white: #FFFFFF;
    --border-color: #E0E0E0;
    --shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
    --shadow-hover: 0 4px 20px rgba(0, 0, 0, 0.15);
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
    line-height: 1.6;
    color: var(--text-dark);
    background-color: var(--white);
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

/* Navigation */
.navbar {
    background-color: var(--white);
    border-bottom: 1px solid var(--border-color);
    padding: 1rem 0;
    position: sticky;
    top: 0;
    z-index: 1000;
    box-shadow: var(--shadow);
}

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

.logo-section {
    display: flex;
    align-items: center;
    gap: 15px;
}

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

.product-name {
    font-size: 1.5rem;
    font-weight: 600;
    color: var(--qt-dark);
}

.nav-links {
    display: flex;
    gap: 30px;
    align-items: center;
}

.nav-links a {
    text-decoration: none;
    color: var(--text-dark);
    font-weight: 500;
    transition: color 0.3s;
}

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

.nav-links .demo-link {
    background-color: var(--qt-green);
    color: var(--white);
    padding: 8px 20px;
    border-radius: 5px;
}

.nav-links .demo-link:hover {
    background-color: var(--qt-green-dark);
    color: var(--white);
}

/* Hero Section */
.hero {
    position: relative;
    color: var(--white);
    padding: 120px 0 100px;
    text-align: center;
    overflow: hidden;
    background: var(--qt-dark);
}

.hero-video {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 0;
    object-fit: cover;
    opacity: 1;
}

.hero-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(135deg, rgba(28, 28, 28, 0.5) 0%, rgba(45, 45, 45, 0.5) 100%);
    z-index: 1;
    pointer-events: none;
}

.hero .container {
    position: relative;
    z-index: 2;
}

.hero-content {
    text-shadow: 0 2px 10px rgba(0, 0, 0, 0.8),
                 0 4px 20px rgba(0, 0, 0, 0.6);
}

.hero-badge {
    display: inline-block;
    padding: 8px 20px;
    background: rgba(65, 205, 82, 0.2);
    border: 1px solid var(--qt-green);
    border-radius: 50px;
    font-size: 0.85rem;
    font-weight: 600;
    letter-spacing: 1px;
    text-transform: uppercase;
    margin-bottom: 30px;
    color: var(--qt-green);
}

.hero-content h2 {
    font-size: 3.5rem;
    margin-bottom: 25px;
    font-weight: 700;
    line-height: 1.2;
}

.hero-subtitle {
    font-size: 1.25rem;
    margin-bottom: 40px;
    color: #E0E0E0;
    max-width: 750px;
    margin-left: auto;
    margin-right: auto;
    line-height: 1.7;
}

.cta-buttons {
    display: flex;
    gap: 20px;
    justify-content: center;
    flex-wrap: wrap;
}

/* Buttons */
.btn {
    display: inline-block;
    padding: 14px 32px;
    border-radius: 6px;
    text-decoration: none;
    font-weight: 600;
    transition: all 0.3s ease;
    border: none;
    cursor: pointer;
    font-size: 1rem;
}

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

.btn-primary:hover {
    background-color: var(--qt-green-dark);
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(65, 205, 82, 0.3);
}

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

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

.btn-large {
    padding: 16px 40px;
    font-size: 1.1rem;
}

/* Sections */
section {
    padding: 90px 0;
}

.section-header {
    text-align: center;
    margin-bottom: 60px;
}

.section-header h2 {
    font-size: 2.75rem;
    margin-bottom: 20px;
    color: var(--qt-dark);
    font-weight: 700;
}

.section-intro {
    font-size: 1.2rem;
    color: var(--text-light);
    max-width: 800px;
    margin: 0 auto;
    line-height: 1.8;
}

/* Overview Section */
.overview {
    background-color: var(--qt-light);
}

.feature-grid {
    display: grid;
    grid-template-columns: repeat(2, 320px);
    gap: 30px;
    justify-content: center;
}

.feature-card {
    background-color: var(--white);
    padding: 40px 30px;
    border-radius: 8px;
    box-shadow: var(--shadow);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
    height: 100%;
}

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

.feature-header {
    display: flex;
    align-items: center;
    gap: 15px;
    margin-bottom: 20px;
}

.feature-icon-box {
    width: 12px;
    height: 12px;
    background: linear-gradient(135deg, var(--qt-green), var(--qt-green-light));
    border-radius: 3px;
    flex-shrink: 0;
}

.feature-card h3 {
    font-size: 1.3rem;
    color: var(--qt-dark);
    font-weight: 600;
}

.feature-card p {
    color: var(--text-light);
    line-height: 1.8;
    font-size: 0.95rem;
}

/* Benefits Section */
.benefits {
    background-color: var(--white);
}

.benefits-list {
    display: grid;
    gap: 30px;
    max-width: 900px;
    margin: 0 auto;
}

.benefit-item {
    padding: 35px;
    background-color: var(--qt-light);
    border-radius: 8px;
    border-left: 4px solid var(--qt-green);
    transition: transform 0.3s ease;
}

.benefit-item:hover {
    transform: translateX(5px);
}

.benefit-item h3 {
    font-size: 1.4rem;
    margin-bottom: 15px;
    color: var(--qt-dark);
    font-weight: 600;
}

.benefit-item p {
    color: var(--text-light);
    line-height: 1.8;
}

/* How It Works Section */
.how-it-works {
    background-color: var(--qt-light);
}

.process-container {
    max-width: 800px;
    margin: 0 auto 70px;
}

.process-step {
    display: grid;
    grid-template-columns: 60px 1fr;
    gap: 30px;
    margin-bottom: 50px;
}

.process-step:last-child {
    margin-bottom: 0;
}

.step-indicator {
    display: flex;
    flex-direction: column;
    align-items: center;
    position: relative;
}

.step-line {
    width: 2px;
    height: 100%;
    background: linear-gradient(to bottom, var(--qt-green), var(--border-color));
    position: absolute;
    top: 30px;
}

.step-line.last {
    background: linear-gradient(to bottom, var(--qt-green), transparent);
}

.step-dot {
    width: 16px;
    height: 16px;
    border-radius: 50%;
    background-color: var(--qt-green);
    border: 3px solid var(--white);
    box-shadow: 0 0 0 2px var(--qt-green);
    position: relative;
    z-index: 1;
}

.step-dot.active {
    width: 20px;
    height: 20px;
    background-color: var(--qt-green-light);
    box-shadow: 0 0 0 3px var(--qt-green);
}

.step-content h3 {
    font-size: 1.5rem;
    margin-bottom: 12px;
    color: var(--qt-dark);
    font-weight: 600;
}

.step-content p {
    color: var(--text-light);
    line-height: 1.8;
}

/* Comparison Section */
.comparison-section {
    margin-top: 70px;
    padding: 50px;
    background-color: var(--white);
    border-radius: 10px;
    box-shadow: var(--shadow);
}

.comparison-section h3 {
    font-size: 2rem;
    margin-bottom: 40px;
    text-align: center;
    color: var(--qt-dark);
    font-weight: 600;
}

.comparison-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 30px;
}

.comparison-column {
    padding: 0;
}

.comparison-header {
    padding: 20px;
    background-color: var(--qt-light);
    border-radius: 8px 8px 0 0;
    border-bottom: 2px solid var(--border-color);
}

.comparison-column.highlight .comparison-header {
    background: linear-gradient(135deg, rgba(65, 205, 82, 0.1), rgba(65, 205, 82, 0.05));
    border-bottom: 2px solid var(--qt-green);
}

.comparison-header h4 {
    font-size: 1.2rem;
    color: var(--qt-dark);
    font-weight: 600;
    text-align: center;
}

.comparison-list {
    list-style: none;
    padding: 25px;
    background-color: var(--qt-light);
    border-radius: 0 0 8px 8px;
    min-height: 250px;
}

.comparison-column.highlight .comparison-list {
    background-color: rgba(65, 205, 82, 0.02);
}

.comparison-list li {
    padding: 12px 0;
    color: var(--text-light);
    line-height: 1.6;
    position: relative;
    padding-left: 30px;
}

.comparison-list li::before {
    content: '';
    position: absolute;
    left: 0;
    top: 50%;
    transform: translateY(-50%);
    width: 18px;
    height: 18px;
    border-radius: 3px;
}

.comparison-list li.positive::before {
    background-color: var(--qt-green);
}

.comparison-list li.negative::before {
    background-color: #E74C3C;
}

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

.cta-content h2 {
    color: var(--white);
    margin-bottom: 15px;
    font-size: 2.5rem;
}

.cta-content p {
    font-size: 1.2rem;
    margin-bottom: 30px;
}

.cta-section .btn-primary {
    background-color: var(--white);
    color: var(--qt-green);
}

.cta-section .btn-primary:hover {
    background-color: var(--qt-light);
    color: var(--qt-green);
    box-shadow: 0 6px 20px rgba(0, 0, 0, 0.2);
}

/* Contact Emails for CTA Section */
.contact-emails {
    margin-top: 30px;
    padding-top: 25px;
    border-top: 1px solid rgba(255, 255, 255, 0.2);
}

.contact-emails p {
    font-size: 1rem;
    margin-bottom: 15px;
    opacity: 0.95;
}

.contact-emails a {
    display: inline-block;
    margin: 0 12px;
    color: var(--white);
    text-decoration: none;
    font-weight: 600;
    font-size: 1.05rem;
    padding: 10px 20px;
    border-radius: 6px;
    background-color: rgba(255, 255, 255, 0.15);
    transition: all 0.3s ease;
    border: 1px solid rgba(255, 255, 255, 0.3);
}

.contact-emails a:hover {
    background-color: var(--white);
    color: var(--qt-green);
    transform: translateY(-2px);
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.2);
}

/* Demo Access Page */
.demo-access {
    min-height: 70vh;
    display: flex;
    align-items: center;
    padding: 80px 0;
    background-color: var(--qt-light);
}

.access-box {
    max-width: 520px;
    margin: 0 auto;
    text-align: center;
    background-color: var(--white);
    padding: 60px 50px;
    border-radius: 10px;
    box-shadow: var(--shadow-hover);
}

.lock-icon {
    margin-bottom: 30px;
    color: var(--qt-green);
}

.lock-icon svg {
    width: 64px;
    height: 64px;
}

.access-box h2 {
    margin-bottom: 15px;
    font-size: 2rem;
    color: var(--qt-dark);
}

.access-box>p {
    color: var(--text-light);
    margin-bottom: 35px;
    line-height: 1.7;
}

.access-form {
    margin-bottom: 40px;
}

.form-group {
    margin-bottom: 20px;
    text-align: left;
}

.form-group label {
    display: block;
    margin-bottom: 8px;
    font-weight: 600;
    color: var(--qt-dark);
}

.form-group input {
    width: 100%;
    padding: 14px 16px;
    border: 2px solid var(--border-color);
    border-radius: 6px;
    font-size: 1rem;
    transition: border-color 0.3s;
}

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

.error-message {
    margin-top: 15px;
    padding: 14px;
    background-color: #FEE;
    border: 1px solid #FCC;
    border-radius: 6px;
    color: #C33;
    font-size: 0.9rem;
}

.access-info {
    padding-top: 35px;
    border-top: 1px solid var(--border-color);
}

.access-info h3 {
    font-size: 1.3rem;
    margin-bottom: 12px;
    color: var(--qt-dark);
}

.access-info p {
    color: var(--text-light);
    margin-bottom: 20px;
    line-height: 1.6;
}

.access-info .btn-secondary {
    color: var(--qt-dark);
    border-color: var(--qt-green);
}

.access-info .btn-secondary:hover {
    background-color: var(--qt-green);
    color: var(--white);
}

/* Contact Emails for Demo Page */
.contact-emails-demo {
    display: flex;
    flex-direction: column;
    gap: 12px;
    margin: 20px 0 25px;
    align-items: center;
}

.contact-emails-demo a {
    display: inline-block;
    color: var(--qt-green);
    text-decoration: none;
    font-weight: 600;
    font-size: 1rem;
    padding: 12px 24px;
    border-radius: 6px;
    background-color: rgba(65, 205, 82, 0.1);
    border: 2px solid var(--qt-green);
    transition: all 0.3s ease;
    min-width: 250px;
    text-align: center;
}

.contact-emails-demo a:hover {
    background-color: var(--qt-green);
    color: var(--white);
    transform: translateY(-2px);
    box-shadow: 0 4px 15px rgba(65, 205, 82, 0.3);
}

/* Footer */
footer {
    background-color: var(--qt-dark);
    color: var(--white);
    padding: 50px 0 25px;
}

.footer-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding-bottom: 30px;
    border-bottom: 1px solid #444;
    flex-wrap: wrap;
    gap: 30px;
}

.footer-logo {
    display: flex;
    align-items: center;
    gap: 15px;
}

.qt-logo-footer {
    height: 32px;
    width: auto;
}

.footer-logo p {
    color: #AAA;
    font-size: 0.95rem;
}

.footer-links {
    display: flex;
    gap: 30px;
}

.footer-links a {
    color: var(--white);
    text-decoration: none;
    transition: color 0.3s;
    font-weight: 500;
}

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

.footer-bottom {
    text-align: center;
    padding-top: 25px;
    color: #AAA;
    font-size: 0.9rem;
}

/* Responsive Design */
@media (max-width: 768px) {
    .hero-content h2 {
        font-size: 2.5rem;
    }

    .hero-subtitle {
        font-size: 1.1rem;
    }

    .section-header h2 {
        font-size: 2rem;
    }

    .nav-links {
        gap: 15px;
        font-size: 0.9rem;
    }

    .feature-grid {
        grid-template-columns: 1fr;
    }

    .process-step {
        grid-template-columns: 40px 1fr;
        gap: 20px;
    }

    .comparison-grid {
        grid-template-columns: 1fr;
    }

    .comparison-section {
        padding: 30px 20px;
    }

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

    .footer-links {
        flex-direction: column;
        gap: 15px;
    }

    .access-box {
        padding: 40px 30px;
    }
}

@media (max-width: 480px) {
    .hero {
        padding: 80px 0 60px;
    }

    .hero-content h2 {
        font-size: 2rem;
    }

    section {
        padding: 60px 0;
    }
}