/* Reset + base styles */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: 'Helvetica Neue', Arial, sans-serif;
    color: #222;
    background: #fff;
    line-height: 1.7;
    text-align: center;
    transition: background 0.3s, color 0.3s;
}

.container {
    width: 90%;
    max-width: 1100px;
    margin: 0 auto;
}

/* Header */
header {
    background: #002b5c;
    color: #fff;
    padding: 1.5rem 0;
}

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

header h1 {
    font-size: 1.6rem;
    font-weight: 600;
}

header nav a {
    color: #fff;
    text-decoration: none;
    margin: 0 1rem;
    font-weight: 500;
}

#toggle-dark {
    background: none;
    border: 2px solid #ffb400;
    color: #ffb400;
    padding: 0.4rem 0.8rem;
    border-radius: 50px;
    cursor: pointer;
    font-size: 0.9rem;
}

#toggle-dark:hover {
    background: #ffb400;
    color: #002b5c;
}

/* Hero */
.hero {
    background: url('https://via.placeholder.com/1600x500/002b5c/ffffff?text=Empowering+Small+Businesses') no-repeat center center/cover;
    color: #fff;
    padding: 150px 20px;
}

.hero h2 {
    font-size: 2.8rem;
    margin-bottom: 1rem;
}

.hero p {
    font-size: 1.3rem;
    margin-bottom: 2rem;
    max-width: 600px;
    margin-left: auto;
    margin-right: auto;
}

.hero .btn {
    background: #ffb400;
    color: #002b5c;
    padding: 0.8rem 1.8rem;
    text-decoration: none;
    border-radius: 50px;
    font-weight: bold;
    font-size: 1rem;
    transition: background 0.3s;
}

.hero .btn:hover {
    background: #e6a100;
}

/* Sections */
section {
    padding: 80px 20px;
}

section h2 {
    color: #002b5c;
    margin-bottom: 1.8rem;
    font-size: 2rem;
}

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

.service {
    background: #f9f9f9;
    border-radius: 12px;
    padding: 2rem;
    max-width: 300px;
    margin: 0 auto;
}

.service h3 {
    color: #ffb400;
    margin-bottom: 0.8rem;
    font-size: 1.2rem;
}

.service p {
    font-size: 0.95rem;
}

/* Footer */
footer {
    background: #002b5c;
    color: #fff;
    padding: 1.5rem 0;
    font-size: 0.9rem;
}

/* Dark mode */
.dark-mode {
    background: #121212;
    color: #ddd;
}

.dark-mode header {
    background: #1a1a1a;
}

.dark-mode nav a {
    color: #ffcc33;
}

.dark-mode .hero {
    background: #1a1a1a;
}

.dark-mode .service {
    background: #222;
}

.dark-mode footer {
    background: #1a1a1a;
}

.dark-mode a {
    color: #ffcc33;
}