:root {
    --primary-color: #6366f1;
    --primary-hover: #4f46e5;
    --dark-blue: #1e293b;
    --slate: #64748b;
    --light-gray: #f8fafc;
    --white: #ffffff;
    --border-color: #e2e8f0;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
    margin: 0;
    color: var(--dark-blue);
    background-color: var(--white);
    line-height: 1.6;
    scroll-behavior: smooth;
}

.container { max-width: 1100px; margin: 0 auto; padding: 0 20px; }

/* Navbar */
.navbar { background: rgba(255, 255, 255, 0.7); backdrop-filter: blur(10px); border-bottom: 1px solid var(--border-color); padding: 1rem 0; position: sticky; top: 0; z-index: 1000; }
.navbar .container { display: flex; justify-content: space-between; align-items: center; }
.logo { font-size: 1.5rem; font-weight: 700; text-decoration: none; color: var(--primary-color); }
.navbar-nav { display: flex; align-items: center; }
.navbar-menu { display: flex; align-items: center; gap: 1.5rem; }
.nav-link { text-decoration: none; color: var(--slate); font-weight: 500; transition: color 0.2s; }
.nav-link:hover { color: var(--primary-color); }

/* Hamburger Button */
.hamburger-btn { display: none; background: none; border: none; cursor: pointer; padding: 0.5rem; margin-left: 1rem; }
.hamburger-btn svg { width: 24px; height: 24px; stroke: var(--dark-blue); }
.mobile-only { display: none; }

/* Buttons */
.button { text-decoration: none; padding: 0.6rem 1.2rem; border-radius: 8px; font-weight: 600; transition: all 0.2s; display: inline-block; text-align: center; }
.button-primary { background-color: var(--primary-color); color: var(--white); }
.button-large { font-size: 1.1rem; padding: 0.8rem 2rem; }
.button-small { font-size: 0.9rem; padding: 0.5rem 1rem; width: auto; display: inline-block; margin-top: auto; }
.button:hover { transform: translateY(-2px); box-shadow: 0 4px 20px rgba(99, 102, 241, 0.3); }
.button.disabled { background-color: #cbd5e1; color: var(--slate); cursor: not-allowed; }
.button.disabled:hover { transform: none; box-shadow: none; }

/* Hero Section */
.hero { text-align: center; padding: 6rem 0; background: linear-gradient(180deg, var(--light-gray) 0%, var(--white) 100%); }
.hero-title { font-size: 3.5rem; line-height: 1.1; max-width: 800px; margin: 0 auto 1.5rem; background: linear-gradient(90deg, #3730a3, #6366f1); -webkit-background-clip: text; -webkit-text-fill-color: transparent; }
.hero .subtitle { font-size: 1.2rem; color: var(--slate); max-width: 700px; margin: 0 auto 2.5rem; }
.browser-frame { display: none; }

/* Tools Grid Section */
.tools-section { padding: 6rem 0; background-color: var(--white); }
.tools-section h2 { text-align: center; font-size: 2.5rem; margin-top: 0; margin-bottom: 1rem; }
.section-subtitle { text-align: center; color: var(--slate); font-size: 1.1rem; margin-bottom: 4rem; }
.tools-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(280px, 1fr)); gap: 2rem; }
.tool-card { background: var(--white); padding: 2rem; border-radius: 12px; border: 1px solid var(--border-color); text-align: center; text-decoration: none; color: inherit; display: flex; flex-direction: column; transition: transform 0.2s, box-shadow 0.2s; }
.tool-card:hover { transform: translateY(-5px); box-shadow: 0 10px 30px -10px rgba(0,0,0,0.1); }
.tool-icon { display: inline-flex; align-items: center; justify-content: center; width: 60px; height: 60px; border-radius: 50%; background: linear-gradient(135deg, var(--primary-color) 0%, var(--primary-hover) 100%); color: var(--white); margin: 0 auto 1.5rem; }
.tool-icon svg { width: 32px; height: 32px; }
.tool-card h3 { margin-top: 0; font-size: 1.25rem; }
.tool-card p { color: var(--slate); flex-grow: 1; margin-bottom: 1.5rem; }
.tool-card.placeholder { opacity: 0.6; cursor: default; }
.tool-card.placeholder:hover { transform: none; box-shadow: none; }

/* Blog Section */
.blog-section { padding: 6rem 0; background-color: var(--light-gray); }
.blog-section h2 { text-align: center; font-size: 2.5rem; margin-top: 0; margin-bottom: 1rem; }
.blog-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(300px, 1fr)); gap: 2rem; }
.blog-card { display: block; text-decoration: none; color: inherit; background: var(--white); border: 1px solid var(--border-color); border-radius: 12px; overflow: hidden; transition: transform 0.2s, box-shadow 0.2s; display: flex; flex-direction: column; }
.blog-card:hover { transform: translateY(-5px); box-shadow: 0 10px 30px -10px rgba(0,0,0,0.1); }
.blog-card-content { padding: 2rem; display: flex; flex-direction: column; flex-grow: 1; }
.blog-card-content h3 { margin-top: 0; }
.blog-card-content p { color: var(--slate); flex-grow: 1; }
.blog-link { color: var(--primary-color); font-weight: 600; text-decoration: none; }

/* FAQ Section */
.faq { padding: 6rem 0; background-color: var(--white); }
.faq h2 { text-align: center; font-size: 2.5rem; margin-bottom: 4rem; }
.faq-grid { max-width: 700px; margin: 0 auto; display: flex; flex-direction: column; gap: 1rem; }
details { border: 1px solid var(--border-color); border-radius: 8px; padding: 1.5rem; transition: background-color 0.2s; background-color: var(--white); }
details:hover { background-color: var(--light-gray); }
summary { font-weight: 600; cursor: pointer; display: flex; justify-content: space-between; align-items: center; }
summary::after { content: '+'; font-size: 1.5rem; color: var(--primary-color); transition: transform 0.2s; }
details[open] summary::after { content: '-'; transform: rotate(45deg); }
details p { color: var(--slate); margin-top: 1rem; margin-bottom: 0; }

/* Footer */
.footer { padding: 3rem 0; text-align: center; background: var(--dark-blue); color: var(--light-gray); }
.footer p { margin: 0; font-size: 0.9rem; }

/* Responsive Navbar Styles */
@media (max-width: 768px) {
    .hamburger-btn { display: block; }
    .navbar-menu {
        display: none; position: absolute; top: 100%; left: 0; right: 0;
        background: var(--white); border-bottom: 1px solid var(--border-color);
        flex-direction: column; align-items: stretch; padding: 1rem 0;
        box-shadow: 0 4px 6px -1px rgba(0,0,0,0.1); gap: 0;
    }
    .navbar-menu.is-active { display: flex; }
    .navbar-menu .nav-link { padding: 1rem 1.5rem; }
    .navbar-menu .button { display: block; margin: 0.5rem 1.5rem 0; text-align: center; }
    .mobile-only { display: block; }
    .navbar-menu a.button-primary { margin-top: 1rem; }
    .hero-title { font-size: 2.5rem; }
    .features h2, .faq h2, .blog-section h2 { font-size: 2rem; }
}