/* ============================================================
   main.css — Global / shared styles for SealTech Solutions
   ============================================================ */

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

body {
    font-family: 'Roboto', Arial, sans-serif;
    line-height: 1.6;
    color: #242424;
    background: #f7f9fc;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
}

a {
    text-decoration: none;
}

/* ---------- Layout ---------- */
.container {
    width: 90%;
    max-width: 1180px;
    margin: auto;
}

section {
    padding: 70px 0;
}

/* Push footer to bottom */
.site-content {
    flex: 1;
}

/* ---------- Header / Nav ---------- */
header {
    background: linear-gradient(135deg, #0e92ae, #17adce);
    color: #fff;
    padding: 18px 0;
    position: sticky;
    top: 0;
    z-index: 999;
}

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

.logo {
    font-size: 28px;
    font-weight: bold;
}

.logo a {
    color: #fff;
    text-decoration: none;
}

.logo span {
    color: #fff;
    opacity: 0.75;
}

.nav-links a {
    color: #fff;
    margin-left: 18px;
    font-weight: 600;
}

/* ---------- Buttons ---------- */
.btn {
    display: inline-block;
    padding: 14px 24px;
    border-radius: 8px;
    font-weight: bold;
    transition: 0.3s ease;
}

.btn-primary {
    background: #17adce;
    color: #fff;
    margin-right: 10px;
}

.btn-primary:hover {
    background: #0e92ae;
}

.btn-whatsapp {
    background: #25D366;
    color: #fff;
}

.btn-whatsapp:hover {
    background: #1ebe5d;
}

.btn-outline {
    border: 2px solid #17adce;
    color: #17adce;
    margin-left: 10px;
}

.btn-outline:hover {
    background: #17adce;
    color: #fff;
}

/* ---------- Alerts ---------- */
.alert {
    padding: 12px;
    border-radius: 8px;
    margin-bottom: 12px;
    font-size: 14px;
}

.success {
    background: #e7f8ec;
    color: #1f7a3e;
}

.error {
    background: #fdeaea;
    color: #b42318;
}

/* ---------- Section Titles ---------- */
.section-title {
    text-align: center;
    margin-bottom: 40px;
}

.section-title h2 {
    font-size: 34px;
    color: #17adce;
    margin-bottom: 10px;
}

.section-title p {
    color: #555;
    max-width: 700px;
    margin: auto;
}

/* ---------- Footer ---------- */
footer {
    background: #0e3340;
    color: #b8e8f2;
    padding: 24px 0;
    text-align: center;
    margin-top: 0;
}

/* ---------- Floating WhatsApp ---------- */
.floating-whatsapp {
    position: fixed;
    bottom: 20px;
    right: 20px;
    background: #25D366;
    color: #fff;
    width: 56px;
    height: 56px;
    border-radius: 50%;
    box-shadow: 0 6px 18px rgba(0, 0, 0, 0.25);
    z-index: 999;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: background 0.3s, transform 0.2s;
}

.floating-whatsapp:hover {
    background: #1ebe5d;
    transform: scale(1.08);
}

/* ---------- Responsive ---------- */
@media (max-width: 768px) {
    .nav {
        flex-direction: column;
        gap: 10px;
    }

    .nav-links a {
        margin: 0 8px;
    }
}