:root {
    --primary: #2563EB;
    --secondary: #64748B;
    --accent: #10B981;
    --neutral: #F3F4F6;
    --dark: #1F2937;
    --light: #FFFFFF;
}

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

html {
    scroll-behavior: smooth;
}

body {
    font-family: 'Inter', sans-serif;
    color: var(--dark);
    line-height: 1.7;
    overflow-x: hidden;
}

h1, h2, h3, h4, h5, h6 {
    font-family: 'Poppins', sans-serif;
    font-weight: 700;
    line-height: 1.2;
}

/* Navigation Links */
.nav-link {
    position: relative;
    color: #4B5563;
    font-weight: 500;
    font-size: 0.95rem;
    transition: all 0.3s ease;
}

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

.mobile-nav-link {
    display: block;
    padding: 0.75rem 1rem;
    color: #4B5563;
    font-weight: 500;
    border-radius: 0.5rem;
    transition: all 0.3s;
}

.mobile-nav-link:hover {
    background: #F3F4F6;
    color: var(--primary);
}

/* Buttons */
.btn-primary {
    display: inline-block;
    background: var(--primary);
    color: white;
    padding: 0.875rem 1.75rem;
    border-radius: 0.5rem;
    font-weight: 600;
    font-size: 0.95rem;
    transition: all 0.3s;
    border: none;
    cursor: pointer;
}

.btn-primary:hover {
    background: #1D4ED8;
    transform: translateY(-1px);
    box-shadow: 0 4px 12px rgba(37, 99, 235, 0.2);
}

.btn-secondary {
    display: inline-block;
    background: white;
    color: var(--primary);
    padding: 0.875rem 1.75rem;
    border-radius: 0.5rem;
    font-weight: 600;
    font-size: 0.95rem;
    transition: all 0.3s;
    border: 2px solid var(--primary);
    cursor: pointer;
}

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

/* Cards */
.card {
    background: white;
    border-radius: 0.75rem;
    padding: 2rem;
    box-shadow: 0 1px 3px rgba(0, 0, 0, 0.08);
    transition: all 0.3s;
    border: 1px solid #E5E7EB;
}

.card:hover {
    box-shadow: 0 8px 24px rgba(0, 0, 0, 0.12);
    transform: translateY(-4px);
}

/* Sections */
.section {
    padding: 5rem 0;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 1.5rem;
}

/* Forms */
input, textarea, select {
    width: 100%;
    padding: 0.875rem 1rem;
    border: 1px solid #D1D5DB;
    border-radius: 0.5rem;
    font-family: inherit;
    font-size: 0.95rem;
    transition: all 0.3s;
    background: white;
}

input:focus, textarea:focus, select:focus {
    outline: none;
    border-color: var(--primary);
    box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.1);
}

input::placeholder, textarea::placeholder {
    color: #9CA3AF;
}

/* Section Titles */
.section-title {
    font-size: 2.5rem;
    font-weight: 800;
    color: var(--dark);
    margin-bottom: 1rem;
}

.section-subtitle {
    font-size: 1.125rem;
    color: #6B7280;
    max-width: 600px;
    margin: 0 auto;
}

/* Responsive */
@media (max-width: 768px) {
    .section {
        padding: 3rem 0;
    }
    
    .section-title {
        font-size: 2rem;
    }
    
    h1 {
        font-size: 2.5rem !important;
    }
}

/* Animations */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.fade-in-up {
    animation: fadeInUp 0.6s ease-out;
}

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

.animate-scale-in {
    animation: scaleIn 0.3s ease-out;
}