@import url('https://fonts.googleapis.com/css2?family=Inter:wght@400;600;700&family=Noto+Sans+SC:wght@400;500;700&display=swap');

:root {
    --primary: #FF7E33;
    --primary-hover: #E66A1F;
    --secondary: #2D3436;
    --accent: #FFB347;
    --bg-light: #FFFAF0;
    --bg-white: #FFFFFF;
    --text-main: #1A1A1A;
    --text-muted: #636E72;
    --card-shadow: 0 10px 30px rgba(255, 126, 51, 0.1);
    --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

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

body {
    font-family: 'Inter', 'Noto Sans SC', sans-serif;
    background-color: var(--bg-light);
    color: var(--text-main);
    line-height: 1.6;
    overflow-x: hidden;
}

/* Scroll Animation Helper */
.reveal {
    opacity: 0;
    transform: translateY(30px);
    transition: var(--transition);
}

.reveal.active {
    opacity: 1;
    transform: translateY(0);
}

/* Typography */
h1, h2, h3 {
    font-weight: 700;
    line-height: 1.2;
}

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

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

/* Navigation */
nav {
    padding: 20px 0;
    background: rgba(255, 255, 255, 0.8);
    backdrop-filter: blur(10px);
    position: sticky;
    top: 0;
    z-index: 1000;
    border-bottom: 1px solid rgba(255, 126, 51, 0.1);
}

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

.logo {
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--primary);
}

.logo-icon {
    width: 40px;
    height: 40px;
    background: var(--primary);
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
}

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

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

.btn {
    padding: 12px 24px;
    border-radius: 50px;
    font-weight: 600;
    cursor: pointer;
    transition: var(--transition);
    border: none;
    display: inline-block;
}

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

.btn-primary:hover {
    background: var(--primary-hover);
    transform: translateY(-2px);
    box-shadow: 0 5px 15px rgba(255, 126, 51, 0.3);
}

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

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

/* Hero Section */
.hero {
    padding: 100px 0;
    text-align: center;
    background: radial-gradient(circle at top right, rgba(255, 179, 71, 0.1), transparent);
}

.hero h1 {
    font-size: 3.5rem;
    margin-bottom: 20px;
    background: linear-gradient(135deg, var(--primary), #FF4D4D);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.hero p {
    font-size: 1.2rem;
    color: var(--text-muted);
    max-width: 600px;
    margin: 0 auto 40px;
}

/* Features */
.features {
    padding: 80px 0;
}

.grid-4 {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 20px;
}

.feature-card {
    background: var(--bg-white);
    padding: 30px;
    border-radius: 20px;
    border: 1px solid rgba(255, 126, 51, 0.1);
    transition: var(--transition);
}

.feature-card:hover {
    transform: translateY(-10px);
    box-shadow: var(--card-shadow);
}

.feature-icon {
    font-size: 2rem;
    margin-bottom: 15px;
    display: block;
}

/* Pricing */
.pricing {
    padding: 80px 0;
    background-color: rgba(255, 126, 51, 0.05);
}

.pricing-title {
    text-align: center;
    margin-bottom: 50px;
}

.grid-3 {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 30px;
}

.pricing-card {
    background: var(--bg-white);
    padding: 40px;
    border-radius: 24px;
    text-align: center;
    position: relative;
    border: 2px solid transparent;
    transition: var(--transition);
}

.pricing-card.popular {
    border-color: var(--primary);
    transform: scale(1.05);
    z-index: 2;
}

.pricing-card:hover {
    box-shadow: var(--card-shadow);
}

.price-tag {
    font-size: 3rem;
    font-weight: 700;
    margin: 20px 0;
    color: var(--primary);
}

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

.pricing-features {
    list-style: none;
    margin-bottom: 30px;
    text-align: left;
}

.pricing-features li {
    margin-bottom: 12px;
    display: flex;
    align-items: center;
    gap: 10px;
}

.pricing-features li::before {
    content: "✓";
    color: var(--primary);
    font-weight: bold;
}

/* Reviews */
.reviews {
    padding: 80px 0;
}

.review-card {
    background: var(--bg-white);
    padding: 30px;
    border-radius: 20px;
    margin-bottom: 20px;
    box-shadow: 0 4px 15px rgba(0,0,0,0.05);
}

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

.avatar {
    width: 50px;
    height: 50px;
    background: var(--accent);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: bold;
    color: white;
}

/* FAQ */
.faq {
    padding: 80px 0;
}

.faq-item {
    background: var(--bg-white);
    margin-bottom: 15px;
    border-radius: 12px;
    overflow: hidden;
}

.faq-question {
    padding: 20px;
    cursor: pointer;
    font-weight: 600;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.faq-answer {
    padding: 0 20px 20px;
    color: var(--text-muted);
    display: none;
}

.faq-item.active .faq-answer {
    display: block;
}

/* Articles Section */
.articles-preview {
    padding: 80px 0;
}

.article-link-card {
    background: var(--bg-white);
    padding: 20px;
    border-radius: 12px;
    border-left: 4px solid var(--primary);
    margin-bottom: 10px;
    transition: var(--transition);
}

.article-link-card:hover {
    padding-left: 30px;
    background: var(--primary);
    color: white;
}

/* Footer */
footer {
    background: var(--secondary);
    color: white;
    padding: 60px 0 30px;
}

.footer-content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 40px;
    margin-bottom: 40px;
}

.footer-bottom {
    text-align: center;
    padding-top: 30px;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    color: rgba(255, 255, 255, 0.5);
    font-size: 0.9rem;
}

/* Mobile Responsive */
@media (max-width: 768px) {
    .hero h1 { font-size: 2.5rem; }
    .nav-links { display: none; }
    .grid-3 { grid-template-columns: 1fr; }
    .pricing-card.popular { transform: scale(1); }
}