@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700&family=Outfit:wght@400;500;600;700;800&display=swap');

:root {
    --primary: #4f46e5;
    --primary-hover: #4338ca;
    --secondary: #10b981;
    --accent: #f59e0b;
    --bg-light: #f8fafc;
    --bg-dark: #0f172a;
    --card-light: #ffffff;
    --card-dark: #1e293b;
    --text-light: #1e293b;
    --text-dark: #f1f5f9;
    --border-light: #e2e8f0;
    --border-dark: #334155;
    --glass-bg: rgba(255, 255, 255, 0.7);
    --glass-border: rgba(255, 255, 255, 0.2);
    
    --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    --shadow: 0 4px 6px -1px rgb(0 0 0 / 0.1), 0 2px 4px -2px rgb(0 0 0 / 0.1);
    --shadow-lg: 0 10px 15px -3px rgb(0 0 0 / 0.1), 0 4px 6px -4px rgb(0 0 0 / 0.1);
}

[data-theme="dark"] {
    --bg-light: #0f172a;
    --card-light: #1e293b;
    --text-light: #f1f5f9;
    --border-light: #334155;
    --glass-bg: rgba(15, 23, 42, 0.7);
    --glass-border: rgba(255, 255, 255, 0.1);
}

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

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

h1, h2, h3, h4, h5, h6 {
    font-family: 'Outfit', sans-serif;
    font-weight: 700;
}

/* Glassmorphism Header */
header {
    position: sticky;
    top: 0;
    z-index: 1000;
    background: var(--glass-bg);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border-bottom: 1px solid var(--glass-border);
    padding: 1rem 2rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo {
    font-size: 1.5rem;
    font-weight: 800;
    background: linear-gradient(135deg, var(--primary), var(--secondary));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    text-decoration: none;
}

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

nav a {
    text-decoration: none;
    color: var(--text-light);
    font-weight: 500;
    transition: var(--transition);
}

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

.theme-toggle {
    background: none;
    border: none;
    cursor: pointer;
    font-size: 1.25rem;
    color: var(--text-light);
    padding: 0.5rem;
    border-radius: 50%;
    transition: var(--transition);
}

.theme-toggle:hover {
    background: var(--border-light);
}

/* Hero Section */
.hero {
    padding: 6rem 2rem;
    text-align: center;
    background: radial-gradient(circle at top right, rgba(79, 70, 229, 0.1), transparent),
                radial-gradient(circle at bottom left, rgba(16, 185, 129, 0.1), transparent);
}

.hero h1 {
    font-size: 4rem;
    margin-bottom: 1.5rem;
    letter-spacing: -0.025em;
    background: linear-gradient(to right, var(--primary), var(--secondary));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.hero p {
    font-size: 1.25rem;
    max-width: 600px;
    margin: 0 auto 2rem;
    color: #64748b;
}

.cta-button {
    background: var(--primary);
    color: white;
    padding: 1rem 2.5rem;
    border-radius: 9999px;
    text-decoration: none;
    font-weight: 600;
    font-size: 1.125rem;
    transition: var(--transition);
    display: inline-block;
    border: none;
    cursor: pointer;
    box-shadow: 0 10px 15px -3px rgba(79, 70, 229, 0.4);
}

.cta-button:hover {
    background: var(--primary-hover);
    transform: translateY(-2px);
    box-shadow: 0 20px 25px -5px rgba(79, 70, 229, 0.4);
}

/* Tools Grid */
.tools-section {
    padding: 4rem 2rem;
    max-width: 1200px;
    margin: 0 auto;
}

.tools-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
    gap: 2rem;
}

.tool-card {
    background: var(--card-light);
    border: 1px solid var(--border-light);
    padding: 2rem;
    border-radius: 1.5rem;
    transition: var(--transition);
    cursor: pointer;
    position: relative;
    overflow: hidden;
}

.tool-card:hover {
    transform: translateY(-8px);
    border-color: var(--primary);
    box-shadow: var(--shadow-lg);
}

.tool-card i {
    font-size: 2.5rem;
    color: var(--primary);
    margin-bottom: 1.5rem;
}

.tool-card h3 {
    margin-bottom: 0.75rem;
}

.tool-card p {
    color: #64748b;
    font-size: 0.875rem;
}

/* Modal */
.modal {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.6);
    backdrop-filter: blur(4px);
    display: none;
    justify-content: center;
    align-items: center;
    z-index: 2000;
}

.modal-content {
    background: var(--card-light);
    width: 90%;
    max-width: 600px;
    border-radius: 1.5rem;
    padding: 3rem;
    position: relative;
    box-shadow: var(--shadow-lg);
    animation: modalIn 0.3s ease-out;
}

@keyframes modalIn {
    from { opacity: 0; transform: scale(0.9); }
    to { opacity: 1; transform: scale(1); }
}

.close-modal {
    position: absolute;
    top: 1.5rem;
    right: 1.5rem;
    font-size: 1.5rem;
    cursor: pointer;
    color: #94a3b8;
}

/* SEO Content Section */
.seo-content {
    padding: 4rem 2rem;
    max-width: 900px;
    margin: 0 auto;
}

.seo-content h2 { margin-top: 2rem; margin-bottom: 1rem; }
.seo-content p { margin-bottom: 1.5rem; }
.seo-content ul { margin-bottom: 1.5rem; padding-left: 1.5rem; }

/* Footer */
footer {
    background: var(--card-light);
    border-top: 1px solid var(--border-light);
    padding: 4rem 2rem;
    margin-top: 4rem;
}

.footer-grid {
    max-width: 1200px;
    margin: 0 auto;
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 3rem;
}

.footer-col h4 { margin-bottom: 1.5rem; }
.footer-col ul { list-style: none; }
.footer-col ul li { margin-bottom: 0.75rem; }
.footer-col a { text-decoration: none; color: #64748b; transition: var(--transition); }
.footer-col a:hover { color: var(--primary); }

.social-icons { display: flex; gap: 1rem; margin-top: 1rem; }
.social-icons a { font-size: 1.25rem; }

/* Form Styles */
.file-upload-area {
    border: 2px dashed var(--border-light);
    padding: 3rem;
    border-radius: 1rem;
    text-align: center;
    margin: 2rem 0;
    transition: var(--transition);
    cursor: pointer;
}

.file-upload-area:hover {
    border-color: var(--primary);
    background: rgba(79, 70, 229, 0.05);
}

.options-group {
    margin-bottom: 1.5rem;
}

.options-group label {
    display: block;
    margin-bottom: 0.5rem;
    font-weight: 500;
}

.options-group input, .options-group select {
    width: 100%;
    padding: 0.75rem;
    border-radius: 0.5rem;
    border: 1px solid var(--border-light);
    background: var(--bg-light);
    color: var(--text-light);
}

/* Responsive */
@media (max-width: 768px) {
    .hero h1 { font-size: 2.5rem; }
    header { padding: 1rem; }
    nav ul { display: none; }
    .footer-grid { grid-template-columns: 1fr; }
}