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

:root {
    --primary: #1e40af;
    --primary-dark: #1e3a8a;
    --secondary: #0f766e;
    --accent: #ea580c;
    --text: #1f2937;
    --text-light: #6b7280;
    --bg-light: #f9fafb;
    --border: #e5e7eb;
    --white: #ffffff;
}

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Arial, sans-serif;
    color: var(--text);
    line-height: 1.6;
    overflow-x: hidden;
    -webkit-font-smoothing:antialiased;
    -moz-osx-font-smoothing:grayscale;
    background: linear-gradient(180deg, var(--bg-light) 0%, #ffffff 100%);
}

/* Accessibility: skip link */
.skip-link {
    position: absolute;
    left: -999px;
    top: auto;
    width: 1px;
    height: 1px;
    overflow: hidden;
}
.skip-link:focus {
    left: 10px;
    top: 10px;
    width: auto;
    height: auto;
    padding: 8px 12px;
    background: var(--primary);
    color: var(--white);
    border-radius: 4px;
    z-index: 9999;
}

/* Reusable button */
.btn {
    display: inline-block;
    padding: 0.65rem 1.25rem;
    border-radius: 8px;
    font-weight: 600;
    text-decoration: none;
    text-align: center;
}

:focus-visible {
    outline: 3px solid rgba(30,64,175,0.12);
    outline-offset: 2px;
}

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

/* Navigation */
.navbar {
    background: var(--white);
    box-shadow: 0 1px 3px rgba(0,0,0,0.1);
    position: sticky;
    top: 0;
    z-index: 100;
}

.navbar .container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1rem 20px;
}

.nav-brand {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--primary);
}

.nav-menu {
    display: flex;
    list-style: none;
    gap: 2rem;
}

.nav-menu a {
    color: var(--text);
    text-decoration: none;
    font-weight: 500;
    transition: color 0.3s ease;
}

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

.nav-menu a {
    padding: 6px 8px;
    border-radius: 6px;
}
.nav-menu a:focus-visible {
    outline: 3px solid rgba(30,64,175,0.12);
    outline-offset: 3px;
}

/* Hero Section */
.hero {
    background: linear-gradient(135deg, var(--primary) 0%, var(--primary-dark) 100%);
    color: var(--white);
    padding: clamp(3rem, 8vw, 6rem) 0;
    text-align: center;
    display: flex;
    align-items: center;
    justify-content: center;
}

.hero-content h1 {
    font-size: 3rem;
    font-weight: 700;
    margin-bottom: 1rem;
    line-height: 1.3;
}

.hero-content p {
    font-size: 1.1rem;
    margin-bottom: 2rem;
    opacity: 0.95;
}

.cta-button {
    display: inline-block;
    background: var(--accent);
    color: var(--white);
    padding: 0.75rem 2rem;
    border-radius: 0.5rem;
    text-decoration: none;
    font-weight: 600;
    font-size: 1.1rem;
    transition: all 0.3s ease;
    box-shadow: 0 4px 6px rgba(0,0,0,0.2);
}

.cta-button:hover {
    background: #d34a07;
    transform: translateY(-2px);
    box-shadow: 0 6px 12px rgba(0,0,0,0.3);
}

/* Features Section */
.feature-card {
    text-align: center;
    padding: 1.5rem;
    border-radius: 0.75rem;
    background: var(--white);
    transition: transform 0.28s cubic-bezier(.2,.9,.2,1), box-shadow 0.28s ease;
    border: 1px solid var(--border);
    box-shadow: 0 6px 20px rgba(14,30,37,0.04);
}

.feature-card:hover {
    transform: translateY(-8px) scale(1.01);
    box-shadow: 0 14px 40px rgba(14,30,37,0.08);
}
.feature-icon {
    font-size: 2.25rem;
    margin-bottom: 0.75rem;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 56px;
    height: 56px;
    border-radius: 12px;
    background: linear-gradient(180deg, rgba(30,64,175,0.08), rgba(15,118,110,0.04));
    color: var(--primary);
}
}

.feature-card {
    text-align: center;
    padding: 1.5rem;
    border-radius: 0.5rem;
    background: var(--bg-light);
    transition: transform 0.3s ease;
    border: none;
}

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

.feature-icon {
    font-size: 2.5rem;
    margin-bottom: 0.75rem;
}

.feature-card h3 {
    font-size: 1.1rem;
    margin-bottom: 0.5rem;
    color: var(--primary);
}

.feature-card p {
    color: var(--text-light);
    font-size: 0.9rem;
}

/* How It Works */
.how-it-works {
    padding: 4rem 0;
    background: linear-gradient(135deg, rgba(30, 64, 175, 0.05) 0%, rgba(15, 118, 110, 0.05) 100%);
}

.how-it-works h2 {
    text-align: center;
    font-size: 2.5rem;
    margin-bottom: 3rem;
}

.steps-container {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 2rem;
    position: relative;
}

.step {
    background: var(--white);
    padding: 2rem;
    border-radius: 0.75rem;
    text-align: center;
    box-shadow: 0 2px 8px rgba(0,0,0,0.1);
    position: relative;
}

.step-number {
    display: inline-block;
    width: 50px;
    height: 50px;
    background: var(--primary);
    color: var(--white);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 700;
    font-size: 1.5rem;
    margin-bottom: 1rem;
}

.step h3 {
    font-size: 1.25rem;
    margin-bottom: 1rem;
    color: var(--text);
}

.step p {
    color: var(--text-light);
    font-size: 0.95rem;
}


/* Contact Section */
.contact {
    padding: 3rem 0;
    background: var(--bg-light);
    text-align: center;
}

.hero-content h1 {
    font-size: clamp(1.6rem, 4.5vw, 3.2rem);
    font-weight: 700;
    margin-bottom: 1rem;
    line-height: 1.15;
}
.hero-content p {
    font-size: clamp(1rem, 2.2vw, 1.125rem);
    margin-bottom: 1.75rem;
    opacity: 0.95;
}
.cta-button {
    background: linear-gradient(90deg, var(--accent), #ff7a18);
    color: var(--white);
    padding: 0.75rem 1.6rem;
    border-radius: 10px;
    text-decoration: none;
    font-weight: 700;
    font-size: 1rem;
    transition: transform 0.18s ease, box-shadow 0.18s ease, opacity 0.18s ease;
    box-shadow: 0 8px 20px rgba(14,30,37,0.12);
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
}
.cta-button:hover,
.cta-button:focus {
    transform: translateY(-3px);
    box-shadow: 0 12px 28px rgba(14,30,37,0.16);
}
    margin-bottom: 0.75rem;
    color: var(--text);
}

.contact-card p a {
    color: var(--primary);
    text-decoration: none;
    font-weight: 600;
    font-size: 1rem;
    transition: color 0.3s ease;
}

.contact-card p a:hover {
    color: var(--accent);
}

/* Footer */
.footer {
    background: var(--text);
    color: var(--white);
    padding: 1.5rem 0;
    text-align: center;
}

.footer p {
    font-size: 0.85rem;
    opacity: 0.8;
}

.footer .container {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 12px;
}

/* Responsive */
@media (max-width: 768px) {
    .hero-content h1 {
        font-size: 2rem;
    }

    .nav-menu {
        gap: 1rem;
        font-size: 0.85rem;
    }

    .features h2,
    .contact h2 {
        font-size: 1.5rem;
    }

    .contact-info {
        grid-template-columns: 1fr;
    }
}

/* Animations */
@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.feature-card,
.contact-card {
    animation: fadeIn 0.6s ease-out;
}