:root {
    /* Avocado Theme Color Collection */
    --primary-color: #b0d6a3; /* Accent/Links Green - Soft avocado green */
    --primary-hover: #9dc791; /* Slightly darker avocado green for hover */
    --secondary-color: #f2fbf4; /* System Background - Light mint/avocado cream */
    --main-background: #fffaf2; /* Main Background - Warm cream background */
    --panel-background: #f2fbf4; /* Panels - Light mint green */
    
    /* Text Colors */
    --text-primary: #2e2f32; /* Primary Text - Dark charcoal */
    --text-secondary: #61708b; /* Secondary Text - Muted blue-gray */
    --text-tertiary: #747474; /* Tertiary Text - Medium gray */
    --text-quaternary: #9e9e9e; /* Quaternary Text - Light gray */
    --text-quinary: #b0d6a3; /* Quinary Content - Avocado green */
    
    /* Brown/Warm Accent Colors */
    --brown-accent: #8a6552; /* Icon Button Color - Warm brown (avocado seed color!) */
    --brown-accent-bg: rgba(138, 101, 82, 0.2); /* Translucent brown */
    
    /* Supporting Colors */
    --alert-red: #ff5b55; /* Error/warning color */
    --presence-away: #d9b072; /* Golden brown */
    --menu-selected: #f5f8fa; /* Very light blue-gray */
    --menu-border: #e7e7e7; /* Light gray border */
    --secondary-accent: #f2f5f8; /* Light gray-blue */
    
    /* Legacy color mappings for compatibility */
    --white: #fffaf2; /* Use warm cream instead of pure white */
    --gray-50: #f2fbf4; /* Light mint */
    --gray-100: #f2fbf4; /* Light mint */
    --gray-200: #e7e7e7; /* Light gray border */
    --gray-300: #9e9e9e; /* Light gray */
    --gray-800: #2e2f32; /* Dark charcoal */
    --gray-900: #2e2f32; /* Dark charcoal */
    
    --border-radius: 0.75rem;
    --shadow-sm: 0 1px 2px 0 rgb(46 47 50 / 0.05);
    --shadow-md: 0 4px 6px -1px rgb(46 47 50 / 0.1), 0 2px 4px -2px rgb(46 47 50 / 0.1);
    --shadow-lg: 0 10px 15px -3px rgb(46 47 50 / 0.1), 0 4px 6px -4px rgb(46 47 50 / 0.1);
    --shadow-xl: 0 20px 25px -5px rgb(46 47 50 / 0.1), 0 8px 10px -6px rgb(46 47 50 / 0.1);
}

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

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    line-height: 1.6;
    color: var(--text-primary);
    background-color: var(--main-background);
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 1.5rem;
}

/* Header */
.header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    background: rgba(255, 250, 242, 0.95);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid var(--menu-border);
    z-index: 1000;
    transition: all 0.3s ease;
}

.nav {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1rem 1.5rem;
    max-width: 1200px;
    margin: 0 auto;
}

.nav-brand {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--primary-color);
}

.nav-brand .logo {
    height: 3rem !important;
    width: auto !important;
    max-width: 100% !important;
    max-height: 3rem !important;
    object-fit: contain !important;
    transition: transform 0.3s ease;
}

.nav-brand .logo:hover {
    transform: scale(1.1);
}

.footer-logo {
    height: 6rem !important;
    width: auto !important;
    max-width: 100% !important;
    max-height: 6rem !important;
    object-fit: contain !important;
}

.nav-brand i {
    font-size: 1.75rem;
}

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

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

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

.nav-cta {
    padding: 0.5rem 1rem !important;
    border-radius: 0.5rem !important;
    font-size: 0.9rem !important;
    color: var(--white) !important;
}

.nav-cta:hover {
    color: var(--white) !important;
    background: var(--primary-hover) !important;
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
}

.nav-toggle {
    display: none;
    flex-direction: column;
    cursor: pointer;
}

.nav-toggle span {
    width: 25px;
    height: 3px;
    background: var(--text-primary);
    margin: 3px 0;
    transition: 0.3s;
}

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 0.75rem 1.5rem;
    border: none;
    border-radius: var(--border-radius);
    font-weight: 600;
    text-decoration: none;
    cursor: pointer;
    transition: all 0.3s ease;
    font-size: 1rem;
}

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

.btn-primary:hover {
    background: var(--primary-hover);
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
}

.btn-secondary {
    background: transparent;
    color: var(--text-primary);
    border: 2px solid var(--gray-300);
}

.btn-secondary:hover {
    background: var(--gray-100);
    border-color: var(--primary-color);
    color: var(--primary-color);
}

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

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

/* Hero Section */
.hero {
    padding: 8rem 0 4rem;
    min-height: 100vh;
    display: flex;
    align-items: center;
    background: linear-gradient(135deg, var(--panel-background) 0%, var(--main-background) 100%);
}

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

.hero-title {
    font-size: 3.5rem;
    font-weight: 700;
    line-height: 1.1;
    margin-bottom: 1.5rem;
}

.gradient-text {
    background: linear-gradient(135deg, var(--primary-color), var(--brown-accent));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero-subtitle {
    font-size: 1.25rem;
    color: var(--text-secondary);
    margin-bottom: 2rem;
    line-height: 1.6;
}

.hero-buttons {
    display: flex;
    gap: 1rem;
}

.hero-visual {
    display: flex;
    justify-content: center;
}

.chat-demo {
    background: var(--white);
    border-radius: 1rem;
    box-shadow: var(--shadow-xl);
    width: 350px;
    overflow: hidden;
    animation: float 6s ease-in-out infinite;
}

@keyframes float {
    0%, 100% { transform: translateY(0px); }
    50% { transform: translateY(-10px); }
}

.chat-header {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    padding: 1rem 1.5rem;
    background: var(--primary-color);
    color: var(--white);
}

.chat-avatar {
    width: 32px;
    height: 32px;
    background-image: url('avocado-logo.png');
    background-size: contain;
    background-repeat: no-repeat;
    background-position: center;
    border-radius: 50%;
    background-color: transparent;
}

.status-dot {
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background: var(--primary-color);
    margin-left: auto;
}

.chat-messages {
    padding: 1.5rem;
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.message {
    display: flex;
}

.message.received {
    justify-content: flex-start;
}

.message.sent {
    justify-content: flex-end;
}

.message-bubble {
    max-width: 80%;
    padding: 0.75rem 1rem;
    border-radius: 1rem;
    font-size: 0.9rem;
    line-height: 1.4;
}

.message.received .message-bubble {
    background: var(--gray-100);
    color: var(--text-primary);
}

.message.sent .message-bubble {
    background: var(--primary-color);
    color: var(--white);
}

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

.section-header h2 {
    font-size: 2.5rem;
    font-weight: 700;
    margin-bottom: 1rem;
}

.section-header p {
    font-size: 1.125rem;
    color: var(--text-secondary);
    max-width: 600px;
    margin: 0 auto;
}

/* Features Section */
.features {
    padding: 6rem 0;
    background: var(--panel-background);
}

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

.feature-card {
    text-align: center;
    padding: 2rem;
    border-radius: var(--border-radius);
    background: var(--main-background);
    border: 1px solid rgba(176, 214, 163, 0.3);
    transition: all 0.3s ease;
}

.feature-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-lg);
    border-color: var(--primary-color);
    background: var(--white);
}

.feature-icon {
    width: 64px;
    height: 64px;
    margin: 0 auto 1.5rem;
    background: linear-gradient(135deg, var(--primary-color), var(--brown-accent));
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    color: var(--main-background);
}

.feature-card h3 {
    font-size: 1.25rem;
    font-weight: 600;
    margin-bottom: 1rem;
}

.feature-card p {
    color: var(--text-secondary);
    line-height: 1.6;
}

/* How It Works Section */
.how-it-works {
    padding: 6rem 0;
    background: var(--main-background);
}

.steps {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 3rem;
}

.step {
    text-align: center;
    position: relative;
}

.step-number {
    width: 60px;
    height: 60px;
    margin: 0 auto 1.5rem;
    background: var(--primary-color);
    color: var(--white);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    font-weight: 700;
}

.step h3 {
    font-size: 1.5rem;
    font-weight: 600;
    margin-bottom: 1rem;
}

.step p {
    color: var(--text-secondary);
    font-size: 1.125rem;
}

/* Pricing Section */
.pricing {
    padding: 6rem 0;
    background: var(--panel-background);
}

.free-service-card {
    max-width: 600px;
    margin: 0 auto;
    background: var(--main-background);
    border: 3px solid var(--primary-color);
    border-radius: var(--border-radius);
    padding: 3rem 2.5rem;
    text-align: center;
    position: relative;
    box-shadow: var(--shadow-xl);
}

.free-badge {
    position: absolute;
    top: -15px;
    left: 50%;
    transform: translateX(-50%);
    background: linear-gradient(135deg, var(--primary-color), var(--brown-accent));
    color: var(--main-background);
    padding: 0.75rem 1.5rem;
    border-radius: var(--border-radius);
    font-size: 0.875rem;
    font-weight: 700;
    display: flex;
    align-items: center;
    gap: 0.5rem;
    box-shadow: var(--shadow-lg);
}

.free-service-card h3 {
    font-size: 2rem;
    font-weight: 700;
    margin-bottom: 1.5rem;
    color: var(--primary-color);
}

.free-service-card .price {
    display: flex;
    align-items: flex-end;
    justify-content: center;
    margin-bottom: 2.5rem;
}

.free-service-card .currency {
    font-size: 2rem;
    font-weight: 600;
    color: var(--text-secondary);
}

.free-service-card .amount {
    font-size: 4rem;
    font-weight: 700;
    color: var(--primary-color);
}

.free-service-card .period {
    font-size: 1.25rem;
    color: var(--text-secondary);
    margin-left: 0.25rem;
}

.free-service-card .features-list {
    list-style: none;
    margin-bottom: 2.5rem;
    text-align: left;
}

.free-service-card .features-list li {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    padding: 0.75rem 0;
    color: var(--text-primary);
    font-weight: 500;
}

.free-service-card .features-list i {
    color: var(--primary-color);
    font-size: 1rem;
    font-weight: 600;
}

.free-note {
    margin-top: 1.5rem;
    font-size: 0.9rem;
    color: var(--text-secondary);
    font-style: italic;
}

.why-free {
    margin-top: 6rem;
    text-align: center;
}

.why-free h3 {
    font-size: 2rem;
    font-weight: 600;
    margin-bottom: 3rem;
    color: var(--text-primary);
}

.reasons-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 2.5rem;
    margin-top: 2rem;
}

.reason {
    text-align: center;
    padding: 2rem 1.5rem;
    background: var(--main-background);
    border: 1px solid rgba(176, 214, 163, 0.3);
    border-radius: var(--border-radius);
    transition: all 0.3s ease;
}

.reason:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-lg);
    border-color: var(--primary-color);
    background: var(--white);
}

.reason i {
    width: 60px;
    height: 60px;
    background: linear-gradient(135deg, var(--primary-color), var(--brown-accent));
    color: var(--main-background);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    margin: 0 auto 1.5rem;
}

.reason h4 {
    font-size: 1.25rem;
    font-weight: 600;
    margin-bottom: 1rem;
    color: var(--text-primary);
}

.reason p {
    color: var(--text-secondary);
    line-height: 1.6;
}

.pricing-cards {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
    max-width: 1000px;
    margin: 0 auto;
}

.pricing-card {
    background: var(--white);
    border: 2px solid var(--gray-200);
    border-radius: var(--border-radius);
    padding: 2.5rem 2rem;
    text-align: center;
    position: relative;
    transition: all 0.3s ease;
}

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

.pricing-card.featured {
    border-color: var(--primary-color);
    transform: scale(1.05);
}

.pricing-card.featured:hover {
    transform: scale(1.05) translateY(-5px);
}

.badge {
    position: absolute;
    top: -12px;
    left: 50%;
    transform: translateX(-50%);
    background: var(--primary-color);
    color: var(--white);
    padding: 0.5rem 1rem;
    border-radius: var(--border-radius);
    font-size: 0.875rem;
    font-weight: 600;
}

.pricing-card h3 {
    font-size: 1.5rem;
    font-weight: 600;
    margin-bottom: 1rem;
}

.price {
    display: flex;
    align-items: flex-end;
    justify-content: center;
    margin-bottom: 2rem;
}

.currency {
    font-size: 1.5rem;
    font-weight: 600;
    color: var(--text-secondary);
}

.amount {
    font-size: 3rem;
    font-weight: 700;
    color: var(--primary-color);
}

.period {
    font-size: 1rem;
    color: var(--text-secondary);
    margin-left: 0.25rem;
}

.features-list {
    list-style: none;
    margin-bottom: 2rem;
}

.features-list li {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    padding: 0.5rem 0;
    color: var(--text-secondary);
}

.features-list i {
    color: var(--primary-color);
    font-size: 0.875rem;
}

/* Contact Section */
.contact {
    padding: 6rem 0;
    background: var(--gray-50);
}

.contact-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
    max-width: 1000px;
    margin: 0 auto;
}

.contact-info {
    display: flex;
    flex-direction: column;
    gap: 2rem;
}

.contact-item {
    display: flex;
    align-items: flex-start;
    gap: 1rem;
}

.contact-item i {
    width: 48px;
    height: 48px;
    background: var(--primary-color);
    color: var(--white);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.25rem;
    flex-shrink: 0;
}

.contact-item h4 {
    font-size: 1.125rem;
    font-weight: 600;
    margin-bottom: 0.25rem;
}

.contact-item p {
    color: var(--text-secondary);
}

.contact-form {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
}

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

.form-group input,
.form-group textarea {
    padding: 0.875rem 1rem;
    border: 2px solid var(--gray-300);
    border-radius: var(--border-radius);
    font-size: 1rem;
    transition: border-color 0.3s ease;
}

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

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

/* Footer */
.footer {
    background: var(--gray-900);
    color: var(--white);
    padding: 4rem 0 2rem;
}

.footer-content {
    display: grid;
    grid-template-columns: 1fr 2fr;
    gap: 4rem;
    margin-bottom: 2rem;
}

.footer-brand p {
    color: var(--text-light);
    margin: 1rem 0 1.5rem;
}

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

.social-links a {
    width: 40px;
    height: 40px;
    background: var(--gray-800);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--white);
    text-decoration: none;
    transition: all 0.3s ease;
}

.social-links a:hover {
    background: var(--primary-color);
    transform: translateY(-2px);
}

.footer-links {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 2rem;
}

.footer-column h4 {
    font-size: 1.125rem;
    font-weight: 600;
    margin-bottom: 1rem;
}

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

.footer-column li {
    margin-bottom: 0.5rem;
}

.footer-column a {
    color: var(--text-light);
    text-decoration: none;
    transition: color 0.3s ease;
}

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

.footer-bottom {
    border-top: 1px solid var(--gray-800);
    padding-top: 2rem;
    text-align: center;
    color: var(--text-light);
}

/* Responsive Design */
@media (max-width: 768px) {
    .nav-menu {
        position: fixed;
        top: 100%;
        left: 0;
        right: 0;
        background: var(--white);
        flex-direction: column;
        padding: 2rem;
        box-shadow: var(--shadow-lg);
        transform: translateY(-100%);
        opacity: 0;
        visibility: hidden;
        transition: all 0.3s ease;
        gap: 1rem;
    }
    
    .nav-menu .nav-cta {
        margin-top: 1rem;
        text-align: center;
    }

    .nav-menu.active {
        transform: translateY(0);
        opacity: 1;
        visibility: visible;
    }

    .nav-toggle {
        display: flex;
    }

    .hero .container {
        grid-template-columns: 1fr;
        text-align: center;
    }

    .hero-title {
        font-size: 2.5rem;
    }

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

    .contact-content {
        grid-template-columns: 1fr;
        gap: 2rem;
    }

    .footer-content {
        grid-template-columns: 1fr;
        gap: 2rem;
    }

    .footer-links {
        grid-template-columns: 1fr;
        gap: 1.5rem;
    }

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

    .pricing-cards {
        grid-template-columns: 1fr;
    }
    
    .free-service-card {
        margin: 0 1rem;
        padding: 2rem 1.5rem;
    }
    
    .reasons-grid {
        grid-template-columns: 1fr;
        gap: 1.5rem;
    }

    .pricing-card.featured {
        transform: none;
    }

    .pricing-card.featured:hover {
        transform: translateY(-5px);
    }

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

@media (max-width: 480px) {
    .container {
        padding: 0 1rem;
    }

    .hero {
        padding: 6rem 0 2rem;
    }

    .hero-title {
        font-size: 2rem;
    }

    .hero-subtitle {
        font-size: 1rem;
    }

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

    .chat-demo {
        width: 300px;
    }

    .features,
    .how-it-works,
    .pricing,
    .contact {
        padding: 4rem 0;
    }
    
    .free-service-card h3 {
        font-size: 1.5rem;
    }
    
    .free-service-card .amount {
        font-size: 3rem;
    }
    
    .why-free h3 {
        font-size: 1.5rem;
    }
}

/* Smooth scrolling */
html {
    scroll-behavior: smooth;
}

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

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

/* Accessibility */
@media (prefers-reduced-motion: reduce) {
    * {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }
    
    html {
        scroll-behavior: auto;
    }
}