/* === Base Reset === */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

/* === Typography & Base === */
body {
    font-family: 'Inter', sans-serif;
    background-color: #f4f8fb;
    color: #1a1a1a;
    line-height: 1.6;
}

/* === Header === */
header {
    background-color: #ffffff;
    padding: 1rem 2rem;
    border-bottom: 1px solid #e0e0e0;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

nav .logo {
    font-size: 1.5rem;
    font-weight: bold;
    color: #1576e3;
}

nav ul {
    list-style: none;
    display: flex;
    gap: 1.5rem;
}

nav ul li a {
    text-decoration: none;
    color: #0077cc;
    font-weight: 500;
    transition: color 0.3s ease;
}

nav ul li a:hover {
    color: #004c80;
}

/* === Intro Section === */
#intro {
    background: linear-gradient(135deg, #e0f2ff 0%, #f4faff 100%);
    padding: 6rem 2rem;
    text-align: center;
}

.intro-container {
    max-width: 800px;
    margin: 0 auto;
}

#intro h1 {
    font-size: 3.5rem;
    font-weight: 800;
    margin-bottom: 1rem;
    color: #002b55;
}

#intro p {
    font-size: 1.25rem;
    color: #333;
    margin-bottom: 2rem;
}

.button {
    display: inline-block;
    background-color: #1884FF;
    color: white;
    padding: 0.9rem 2rem;
    font-size: 1rem;
    border-radius: 30px;
    font-weight: bold;
    text-decoration: none;
    transition: background-color 0.3s ease, box-shadow 0.3s ease;
    box-shadow: 0 5px 15px rgba(0, 119, 204, 0.2);
}

.button:hover {
    background-color: #005fa3;
    box-shadow: 0 8px 20px rgba(0, 95, 163, 0.3);
}

/* === Section Containers === */
.section-container {
    max-width: 800px;
    margin: 0 auto;
    padding: 4rem 2rem;
    text-align: center;
}

.section-container h2 {
    font-size: 2rem;
    font-weight: 800;
    color: #1576e3;
    margin-bottom: 2rem;
}

/* === Features List === */
.feature-list {
    list-style: none;
    padding: 0;
    text-align: left;
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
    gap: 1.5rem;
}

.feature-list li {
    background-color: #e0f2ff;
    color: #000;
    padding: 1.25rem;
    border-radius: 6px;
    font-weight: 600;
    text-align: center;
    box-shadow: 0 2px 6px rgba(0,0,0,0.05);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.feature-list li:hover {
    transform: scale(1.05);
    box-shadow: 0 6px 15px rgba(0,0,0,0.1);
}

/* === Use Case List === */
.use-case-list {
    list-style: none;
    padding: 0;
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
    gap: 1.5rem;
}

.use-case-list li {
    background-color: #e0f2ff;
    color: #000;
    padding: 1rem;
    border-radius: 6px;
    font-weight: 600;
    box-shadow: 0 2px 6px rgba(0,0,0,0.05);
    text-align: center;
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.use-case-list li:hover {
    transform: scale(1.05);
    box-shadow: 0 6px 15px rgba(0,0,0,0.1);
}

/* === Footer === */
footer {
    text-align: center;
    padding: 2rem;
    font-size: 0.9rem;
    color: #666;
    background-color: #ffffff;
    border-top: 1px solid #e0e0e0;
}

.alt-contact {
    margin-top: 1rem;
    font-size: 0.95rem;
    color: #333;
}

.alt-contact a {
    color: #1884FF;
    text-decoration: none;
}

.alt-contact a:hover {
    text-decoration: underline;
}

.contact-form {
    display: flex;
    flex-direction: column;
    gap: 1.25rem;
    max-width: 500px;
    margin: 2rem auto 0;
    font-size: 1rem;
}

.contact-form input,
.contact-form textarea {
    width: 100%;
    padding: 0.85rem 1rem;
    border: 1px solid #ccc;
    border-radius: 8px;
    font-family: inherit;
    font-size: 1rem;
    background-color: #fff;
    transition: border-color 0.2s ease, box-shadow 0.2s ease;
}

.contact-form input:focus,
.contact-form textarea:focus {
    border-color: #1884FF;
    box-shadow: 0 0 0 3px rgba(0, 119, 204, 0.1);
    outline: none;
}

.contact-form textarea {
    resize: vertical;
    min-height: 120px;
}

.contact-form button {
    align-self: center;
}

#logo {
    display: block;
    margin: 0 auto 2rem;
    width: 85vw;
    height: auto;
}

@media (min-width: 768px) {
    #logo {
        width: 30vw;
    }
}

/* Responsive tweaks */
@media (max-width: 768px) {
    .feature-list,
    .use-case-list {
        grid-template-columns: 1fr;
    }
}

/* === Emphasise block titles === */
.feature-list li strong,
.use-case-list li strong {
    font-weight: 800;
    font-size: 1.1rem;
    display: block;
    margin-bottom: 0.5rem;
    color: #102a43;
}
@media (max-width: 768px) {
    .feature-list,
    .use-case-list {
        grid-template-columns: 1fr;
    }
}