:root {
    --color-primary: #b8860b;
    --color-primary-light: #d4a843;
    --color-primary-dark: #8b6914;
    --color-bg-dark: #0a0a0f;
    --color-bg-card: #12121a;
    --color-bg-card-hover: #1a1a25;
    --color-text: #ffffff;
    --color-text-secondary: #a0a0b0;
    --color-border: #2a2a3a;
    --gradient-primary: linear-gradient(135deg, #b8860b 0%, #d4a843 50%, #b8860b 100%);
    --gradient-text: linear-gradient(135deg, #d4a843 0%, #ffd700 50%, #d4a843 100%);
    --shadow-glow: 0 0 40px rgba(184, 134, 11, 0.15);
    --transition: all 0.3s ease;
}

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

html {
    scroll-behavior: smooth;
}

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
    background-color: var(--color-bg-dark);
    color: var(--color-text);
    line-height: 1.6;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 24px;
}

/* Typography */
h1, h2, h3, h4 {
    font-family: 'Playfair Display', serif;
    font-weight: 600;
    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); }

.gradient-text {
    background: var(--gradient-text);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

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

.section-subtitle {
    text-align: center;
    color: var(--color-text-secondary);
    max-width: 600px;
    margin: 0 auto 48px;
    font-size: 1.1rem;
}

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 12px 24px;
    border-radius: 8px;
    font-weight: 600;
    font-size: 0.95rem;
    text-decoration: none;
    transition: var(--transition);
    cursor: pointer;
    border: none;
}

.btn-primary {
    background: var(--gradient-primary);
    color: #000;
    box-shadow: 0 4px 20px rgba(184, 134, 11, 0.3);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 30px rgba(184, 134, 11, 0.4);
}

.btn-secondary {
    background: transparent;
    color: var(--color-text);
    border: 1px solid var(--color-border);
}

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

.btn-large {
    padding: 16px 32px;
    font-size: 1.05rem;
}

/* Navigation */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    background: rgba(10, 10, 15, 0.9);
    backdrop-filter: blur(20px);
    border-bottom: 1px solid var(--color-border);
}

.nav-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 16px 24px;
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.logo {
    display: flex;
    align-items: center;
    gap: 12px;
    text-decoration: none;
    color: var(--color-text);
}

.logo-icon {
    width: 40px;
    height: 40px;
    background: var(--gradient-primary);
    border-radius: 10px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 700;
    font-size: 1rem;
    color: #000;
}

.logo-text {
    font-family: 'Playfair Display', serif;
    font-size: 1.25rem;
    font-weight: 600;
}

.nav-links {
    display: flex;
    gap: 32px;
}

.nav-links a {
    color: var(--color-text-secondary);
    text-decoration: none;
    font-size: 0.95rem;
    transition: var(--transition);
}

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

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

.mobile-menu-btn span {
    width: 24px;
    height: 2px;
    background: var(--color-text);
    transition: var(--transition);
}

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

.hero-bg {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: radial-gradient(ellipse at top center, rgba(184, 134, 11, 0.1) 0%, transparent 50%);
    pointer-events: none;
}

.hero-content {
    position: relative;
    text-align: center;
    max-width: 900px;
    margin: 0 auto;
}

.hero h1 {
    margin-bottom: 24px;
}

.hero-subtitle {
    font-size: 1.25rem;
    color: var(--color-text-secondary);
    margin-bottom: 40px;
    max-width: 700px;
    margin-left: auto;
    margin-right: auto;
}

.hero-cta {
    display: flex;
    gap: 16px;
    justify-content: center;
    flex-wrap: wrap;
    margin-bottom: 64px;
}

.hero-stats {
    display: flex;
    justify-content: center;
    gap: 48px;
    flex-wrap: wrap;
}

.stat {
    text-align: center;
}

.stat-number {
    display: block;
    font-size: 2.5rem;
    font-weight: 700;
    color: var(--color-primary-light);
    font-family: 'Playfair Display', serif;
}

.stat-label {
    font-size: 0.9rem;
    color: var(--color-text-secondary);
}

/* Page Hero */
.page-hero {
    padding: 160px 0 80px;
    text-align: center;
    background: radial-gradient(ellipse at top center, rgba(184, 134, 11, 0.08) 0%, transparent 50%);
}

.page-hero h1 {
    margin-bottom: 16px;
}

/* Features Overview */
.features-overview {
    padding: 100px 0;
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 24px;
}

.feature-card {
    background: var(--color-bg-card);
    border: 1px solid var(--color-border);
    border-radius: 16px;
    padding: 32px;
    transition: var(--transition);
}

.feature-card:hover {
    background: var(--color-bg-card-hover);
    border-color: var(--color-primary);
    transform: translateY(-4px);
    box-shadow: var(--shadow-glow);
}

.feature-icon {
    font-size: 2.5rem;
    margin-bottom: 16px;
}

.feature-card h3 {
    margin-bottom: 12px;
    color: var(--color-text);
}

.feature-card p {
    color: var(--color-text-secondary);
    font-size: 0.95rem;
}

/* How It Works */
.how-it-works {
    padding: 100px 0;
    background: var(--color-bg-card);
}

.steps {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 32px;
    margin-top: 48px;
}

.step {
    text-align: center;
    padding: 32px;
}

.step-number {
    width: 60px;
    height: 60px;
    background: var(--gradient-primary);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    font-weight: 700;
    color: #000;
    margin: 0 auto 24px;
}

.step h3 {
    margin-bottom: 12px;
}

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

/* CTA Section */
.cta-section {
    padding: 100px 0;
    background: radial-gradient(ellipse at center, rgba(184, 134, 11, 0.1) 0%, transparent 60%);
}

.cta-content {
    text-align: center;
    max-width: 600px;
    margin: 0 auto;
}

.cta-content h2 {
    margin-bottom: 16px;
}

.cta-content p {
    color: var(--color-text-secondary);
    margin-bottom: 32px;
    font-size: 1.1rem;
}

/* Footer */
.footer {
    padding: 64px 0 32px;
    border-top: 1px solid var(--color-border);
}

.footer-content {
    display: flex;
    justify-content: space-between;
    flex-wrap: wrap;
    gap: 48px;
    margin-bottom: 48px;
}

.footer-brand {
    max-width: 300px;
}

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

.footer-brand p {
    color: var(--color-text-secondary);
    font-size: 0.95rem;
}

.footer-links {
    display: flex;
    gap: 64px;
}

.footer-column h4 {
    color: var(--color-text);
    margin-bottom: 16px;
    font-size: 1rem;
}

.footer-column a {
    display: block;
    color: var(--color-text-secondary);
    text-decoration: none;
    margin-bottom: 12px;
    font-size: 0.95rem;
    transition: var(--transition);
}

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

.footer-bottom {
    text-align: center;
    padding-top: 32px;
    border-top: 1px solid var(--color-border);
}

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

/* About Page */
.about-content {
    padding: 80px 0;
}

.about-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 64px;
    align-items: center;
}

.about-text h2 {
    margin-bottom: 24px;
}

.about-text p {
    color: var(--color-text-secondary);
    margin-bottom: 16px;
    font-size: 1.05rem;
}

.image-placeholder {
    background: var(--color-bg-card);
    border: 1px solid var(--color-border);
    border-radius: 24px;
    aspect-ratio: 1;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 6rem;
}

.values-section {
    padding: 100px 0;
    background: var(--color-bg-card);
}

.values-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 24px;
}

.value-card {
    background: var(--color-bg-dark);
    border: 1px solid var(--color-border);
    border-radius: 16px;
    padding: 32px;
}

.value-icon {
    font-size: 2rem;
    margin-bottom: 16px;
}

.value-card h3 {
    margin-bottom: 12px;
}

.value-card p {
    color: var(--color-text-secondary);
    font-size: 0.95rem;
}

.methodology-section {
    padding: 100px 0;
}

.methodology-content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 32px;
}

.methodology-item {
    padding: 24px;
    border-left: 3px solid var(--color-primary);
}

.methodology-item h3 {
    margin-bottom: 12px;
}

.methodology-item p {
    color: var(--color-text-secondary);
    font-size: 0.95rem;
}

/* Features Page */
.chat-modes-section {
    padding: 80px 0;
}

.chat-modes-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: 24px;
}

.chat-mode-card {
    background: var(--color-bg-card);
    border: 1px solid var(--color-border);
    border-radius: 16px;
    padding: 32px;
    transition: var(--transition);
}

.chat-mode-card:hover {
    border-color: var(--color-primary);
    box-shadow: var(--shadow-glow);
}

.chat-mode-icon {
    font-size: 2.5rem;
    margin-bottom: 16px;
}

.chat-mode-card h3 {
    margin-bottom: 12px;
}

.chat-mode-card > p {
    color: var(--color-text-secondary);
    margin-bottom: 20px;
}

.chat-mode-examples {
    list-style: none;
    padding: 0;
}

.chat-mode-examples li {
    color: var(--color-text-secondary);
    font-size: 0.9rem;
    padding: 8px 0;
    border-top: 1px solid var(--color-border);
    font-style: italic;
}

.numbers-section {
    padding: 100px 0;
    background: var(--color-bg-card);
}

.numbers-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 32px;
}

.number-category {
    background: var(--color-bg-dark);
    border: 1px solid var(--color-border);
    border-radius: 16px;
    padding: 32px;
}

.number-category h3 {
    color: var(--color-primary-light);
    margin-bottom: 20px;
    padding-bottom: 12px;
    border-bottom: 1px solid var(--color-border);
}

.number-category ul {
    list-style: none;
    padding: 0;
}

.number-category li {
    color: var(--color-text-secondary);
    padding: 8px 0;
    font-size: 0.95rem;
}

.number-category li strong {
    color: var(--color-text);
}

.personalization-section {
    padding: 100px 0;
}

.personalization-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 24px;
}

.personalization-card {
    background: var(--color-bg-card);
    border: 1px solid var(--color-border);
    border-radius: 16px;
    padding: 32px;
}

.personalization-card h3 {
    margin-bottom: 12px;
    color: var(--color-primary-light);
}

.personalization-card > p {
    color: var(--color-text-secondary);
    margin-bottom: 16px;
}

.personalization-card ul {
    list-style: none;
    padding: 0;
}

.personalization-card li {
    color: var(--color-text-secondary);
    padding: 6px 0;
    font-size: 0.95rem;
}

.personalization-card li strong {
    color: var(--color-text);
}

.languages-section {
    padding: 80px 0;
    background: var(--color-bg-card);
}

.languages-grid {
    display: flex;
    justify-content: center;
    gap: 32px;
    flex-wrap: wrap;
    margin-bottom: 24px;
}

.language-item {
    background: var(--color-bg-dark);
    border: 1px solid var(--color-border);
    padding: 16px 32px;
    border-radius: 8px;
    font-size: 1.1rem;
}

.languages-note {
    text-align: center;
    color: var(--color-text-secondary);
    font-style: italic;
}

/* Contact Page */
.contact-section {
    padding: 80px 0;
}

.contact-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 64px;
}

.contact-info h2,
.contact-form-container h2 {
    margin-bottom: 24px;
}

.contact-info > p {
    color: var(--color-text-secondary);
    margin-bottom: 32px;
}

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

.contact-method {
    display: flex;
    gap: 16px;
    align-items: flex-start;
}

.contact-icon {
    font-size: 1.5rem;
    width: 48px;
    height: 48px;
    background: var(--color-bg-card);
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.contact-details h3 {
    font-size: 1.1rem;
    margin-bottom: 4px;
}

.contact-details p {
    color: var(--color-text-secondary);
    font-size: 0.95rem;
}

.contact-form {
    display: flex;
    flex-direction: column;
    gap: 20px;
}

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

.form-group label {
    font-weight: 500;
    font-size: 0.95rem;
}

.form-group input,
.form-group select,
.form-group textarea {
    background: var(--color-bg-card);
    border: 1px solid var(--color-border);
    border-radius: 8px;
    padding: 14px 16px;
    color: var(--color-text);
    font-family: inherit;
    font-size: 1rem;
    transition: var(--transition);
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--color-primary);
    box-shadow: 0 0 0 3px rgba(184, 134, 11, 0.1);
}

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

.faq-section {
    padding: 100px 0;
    background: var(--color-bg-card);
}

.faq-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: 24px;
}

.faq-item {
    background: var(--color-bg-dark);
    border: 1px solid var(--color-border);
    border-radius: 12px;
    padding: 24px;
}

.faq-item h3 {
    margin-bottom: 12px;
    font-size: 1.1rem;
}

.faq-item p {
    color: var(--color-text-secondary);
    font-size: 0.95rem;
}

/* Mobile Styles */
@media (max-width: 768px) {
    .nav-links {
        display: none;
        position: absolute;
        top: 100%;
        left: 0;
        right: 0;
        flex-direction: column;
        background: rgba(10, 10, 15, 0.98);
        padding: 24px;
        gap: 16px;
        border-bottom: 1px solid var(--color-border);
    }

    .nav-links.active {
        display: flex;
    }

    .navbar .btn-primary {
        display: none;
    }

    .mobile-menu-btn {
        display: flex;
    }

    .hero-stats {
        gap: 24px;
    }

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

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

    .about-image {
        order: -1;
    }

    .image-placeholder {
        aspect-ratio: 16/9;
        font-size: 4rem;
    }

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

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

    .footer-brand {
        max-width: none;
    }

    .footer-links {
        gap: 48px;
    }
}

@media (max-width: 480px) {
    .hero-cta {
        flex-direction: column;
        align-items: center;
    }

    .hero-cta .btn {
        width: 100%;
        max-width: 300px;
    }

    .hero-stats {
        flex-direction: column;
        gap: 16px;
    }

    .languages-grid {
        flex-direction: column;
        align-items: center;
    }
}