body {
    font-family: "Lexend", sans-serif;
    background: #f4f7fb;
    margin: 0;
}

/* Navbar */
.navbar {
    background: white;
    padding: 14px 0;
    box-shadow: 0 2px 8px rgba(0,0,0,0.05);
    position: sticky;
    top: 0;
    z-index: 100;
}

.nav-inner {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo {
    height: 45px;
    margin-right: 10px;
}

.logo-area {
    display: flex;
    align-items: center;
}

.logo-text {
    font-size: 1.3rem;
    font-weight: 700;
}

.nav-links {
    display: flex;
    gap: 24px;
}

.nav-links a {
    color: #333;
    text-decoration: none;
    font-size: 1rem;
}

.nav-links a:hover {
    color: #1F4FFF;
}

/* Sections */
.container {
    max-width: 1150px;
    margin: auto;
    padding: 25px;
}

.hero-section {
    background: #eef3ff;
    padding-top: 120px;
    padding-bottom: 60px;
}

.title {
    font-size: 3rem;
    font-weight: 800;
}

.blue { color: #1F4FFF; }

.subtitle {
    font-size: 1.2rem;
    max-width: 600px;
    color: #555;
    margin-bottom: 25px;
}

.btn-row {
    display: flex;
    gap: 15px;
    margin-top: 20px;
}

.btn-primary {
    background: #1F4FFF;
    color: white;
    padding: 12px 22px;
    border-radius: 10px;
    text-decoration: none;
}

.btn-outline {
    background: white;
    border: 2px solid #1F4FFF;
    color: #1F4FFF;
    padding: 12px 22px;
    border-radius: 10px;
    text-decoration: none;
}

/* Cards */
.card {
    background: white;
    padding: 25px;
    border-radius: 20px;
    max-width: 450px;
    box-shadow: 0 6px 20px rgba(0,0,0,0.08);
}

.section-title {
    font-size: 2.4rem;
    font-weight: 800;
}

.paragraph {
    font-size: 1.2rem;
    color: #444;
    margin-bottom: 18px;
}

/* AI section */
.textarea {
    width: 100%;
    min-height: 180px;
    padding: 15px;
    border-radius: 15px;
    border: 1px solid #ccc;
}

.output-box {
    background: #fff;
    padding: 20px;
    border-radius: 15px;
    min-height: 150px;
    margin-top: 20px;
    box-shadow: 0 4px 12px rgba(0,0,0,0.05);
}