@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;600;800&display=swap');

:root {
    --primary: #ff6a00;
    --primary-dark: #cc5500;
    --primary-light: #ff8c33;
    --bg-dark: #0f1115;
    --bg-card: #181b21;
    --text-main: #f0f0f0;
    --text-muted: #a0a5b1;
    --accent: #ff4500;
}

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

html {
    scroll-behavior: smooth;
    font-family: 'Inter', sans-serif;
    background-color: var(--bg-dark);
    color: var(--text-main);
}

body {
    overflow-x: hidden;
}

a {
    text-decoration: none;
    color: inherit;
}

/* Header & Nav */
header {
    position: fixed;
    top: 0;
    width: 100%;
    background: rgba(15, 17, 21, 0.9);
    backdrop-filter: blur(10px);
    z-index: 1000;
    border-bottom: 1px solid rgba(255, 106, 0, 0.2);
}

.nav-container {
    max-width: 1200px;
    margin: 0 auto;
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1rem 2rem;
}

.logo {
    font-size: 1.5rem;
    font-weight: 800;
    color: var(--primary);
    text-transform: uppercase;
    letter-spacing: 2px;
}

.nav-links {
    display: flex;
    gap: 2rem;
}

.nav-links a {
    font-weight: 600;
    font-size: 1rem;
    transition: color 0.3s ease;
}

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

.btn-primary {
    background: linear-gradient(135deg, var(--primary), var(--accent));
    color: #fff;
    padding: 0.75rem 1.5rem;
    border-radius: 8px;
    font-weight: 600;
    transition: transform 0.3s ease, box-shadow 0.3s ease;
    display: inline-block;
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 10px 20px rgba(255, 106, 0, 0.3);
}

/* Hero Section */
.hero {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    text-align: center;
    padding: 6rem 2rem 2rem;
    position: relative;
    overflow: hidden;
}

.hero::before {
    content: '';
    position: absolute;
    top: -50%;
    left: -50%;
    width: 200%;
    height: 200%;
    background: radial-gradient(circle, rgba(255, 106, 0, 0.1) 0%, transparent 60%);
    z-index: -1;
    animation: rotateBg 20s linear infinite;
}

@keyframes rotateBg {
    0% { transform: rotate(0deg); }
    100% { transform: rotate(360deg); }
}

.hero-content h1 {
    font-size: 4rem;
    font-weight: 800;
    margin-bottom: 1.5rem;
    background: -webkit-linear-gradient(45deg, #ff6a00, #ffca28);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.hero-content p {
    font-size: 1.2rem;
    color: var(--text-muted);
    margin-bottom: 2rem;
    max-width: 600px;
    margin-left: auto;
    margin-right: auto;
}

.hero-stats {
    display: flex;
    justify-content: center;
    gap: 3rem;
    margin-top: 4rem;
}

.stat-item h3 {
    font-size: 2rem;
    color: var(--primary);
}

.stat-item p {
    color: var(--text-muted);
    font-size: 0.9rem;
}

/* Common Section */
section {
    padding: 6rem 2rem;
    max-width: 1200px;
    margin: 0 auto;
}

.section-title {
    text-align: center;
    font-size: 2.5rem;
    margin-bottom: 3rem;
    position: relative;
}

.section-title::after {
    content: '';
    display: block;
    width: 60px;
    height: 4px;
    background: var(--primary);
    margin: 1rem auto 0;
    border-radius: 2px;
}

/* Features */
.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 2rem;
}

.feature-card {
    background: var(--bg-card);
    padding: 2rem;
    border-radius: 12px;
    border: 1px solid rgba(255, 255, 255, 0.05);
    transition: transform 0.3s ease, border-color 0.3s ease;
    text-align: center;
}

.feature-card:hover {
    transform: translateY(-10px);
    border-color: var(--primary);
}

.feature-icon {
    font-size: 3rem;
    color: var(--primary);
    margin-bottom: 1.5rem;
}

/* Pricing */
.pricing-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
    align-items: center;
}

.pricing-card {
    background: var(--bg-card);
    padding: 3rem 2rem;
    border-radius: 16px;
    border: 1px solid rgba(255, 255, 255, 0.05);
    text-align: center;
    position: relative;
    transition: transform 0.3s ease;
}

.pricing-card.popular {
    border-color: var(--primary);
    transform: scale(1.05);
    box-shadow: 0 0 30px rgba(255, 106, 0, 0.15);
}

.pricing-card.popular:hover {
    transform: scale(1.08);
}

.pricing-card:hover {
    transform: translateY(-10px);
}

.price {
    font-size: 3rem;
    font-weight: 800;
    color: var(--primary);
    margin: 1.5rem 0;
}

.price span {
    font-size: 1rem;
    color: var(--text-muted);
}

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

.pricing-features li {
    margin-bottom: 1rem;
    color: var(--text-muted);
}

/* Tutorial */
.tutorial-steps {
    display: flex;
    flex-direction: column;
    gap: 2rem;
}

.step {
    background: var(--bg-card);
    padding: 2rem;
    border-radius: 12px;
    display: flex;
    align-items: center;
    gap: 2rem;
}

.step-num {
    background: var(--primary);
    width: 60px;
    height: 60px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    font-weight: 800;
    flex-shrink: 0;
}

/* FAQ */
.faq-list {
    max-width: 800px;
    margin: 0 auto;
}

.faq-item {
    background: var(--bg-card);
    margin-bottom: 1rem;
    border-radius: 8px;
    overflow: hidden;
}

.faq-q {
    padding: 1.5rem;
    font-weight: 600;
    cursor: pointer;
    display: flex;
    justify-content: space-between;
}

.faq-a {
    padding: 0 1.5rem 1.5rem;
    color: var(--text-muted);
}

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

.kb-card {
    background: var(--bg-card);
    border-radius: 12px;
    overflow: hidden;
    transition: transform 0.3s ease;
}

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

.kb-content {
    padding: 1.5rem;
}

.kb-content h3 {
    margin-bottom: 1rem;
    font-size: 1.2rem;
}

.kb-content p {
    color: var(--text-muted);
    font-size: 0.9rem;
}

/* Footer */
footer {
    background: #0a0b0e;
    padding: 4rem 2rem 2rem;
    border-top: 1px solid rgba(255, 255, 255, 0.05);
}

.footer-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
    margin-bottom: 2rem;
    max-width: 1200px;
    margin: 0 auto 3rem;
}

.tag {
    background: rgba(255, 255, 255, 0.05);
    padding: 0.25rem 0.75rem;
    border-radius: 100px;
    font-size: 0.8rem;
    color: var(--text-muted);
}

.footer-bottom {
    text-align: center;
    color: var(--text-muted);
    font-size: 0.9rem;
}

@media (max-width: 768px) {
    .nav-links {
        display: none;
    }
    .hero-content h1 {
        font-size: 2.5rem;
    }
    .hero-stats {
        flex-direction: column;
        gap: 1.5rem;
    }
    .pricing-card.popular {
        transform: scale(1);
    }
    .pricing-card.popular:hover {
        transform: translateY(-5px);
    }
    .step {
        flex-direction: column;
        text-align: center;
    }
}