/* =========================
   GLOBAL
========================= */

body {
    margin: 0;
    font-family: 'Poppins', sans-serif;
    background: #f5f9ff;
    color: #0d1b2a;
}

.section {
    padding: 80px 8%;
    text-align: center;
}

/* =========================
   HEADER
========================= */

header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 0 8%;
    height: 110px;
    background: white;
    box-shadow: 0 4px 20px rgba(0,0,0,0.04);
    position: sticky;
    top: 0;
    z-index: 1000;
}

.logo img {
    height: 95px;
}

/* Navigation */

nav {
    display: flex;
    align-items: center;
}

nav a {
    margin-left: 45px;
    text-decoration: none;
    font-size: 18px;
    font-weight: 500;
    color: #0d1b2a;
    transition: 0.3s;
}

nav a:hover {
    color: #ff6b00;
}

/* Hamburger */

.menu-toggle {
    display: none;
    font-size: 30px;
    cursor: pointer;
}

/* =========================
   HERO
========================= */

.hero {
    padding: 120px 8%;
    text-align: center;
    background: linear-gradient(135deg, #f5f9ff 0%, #e9f0ff 100%);
}

.hero h1 {
    font-size: 52px;
}

.hero span {
    color: #ff6b00;
}

.hero p {
    font-size: 20px;
    margin-top: 15px;
}

/* =========================
   BUTTON
========================= */

.btn {
    background: #1434a4;
    color: white;
    padding: 14px 30px;
    border-radius: 6px;
    text-decoration: none;
    display: inline-block;
    margin-top: 25px;
    font-weight: 600;
    transition: 0.3s;
}

.btn:hover {
    background: #ff6b00;
}

/* =========================
   CARDS
========================= */

.cards {
    display: flex;
    gap: 30px;
    flex-wrap: wrap;
    justify-content: center;
}

.card, .testimonial {
    background: white;
    padding: 30px;
    width: 300px;
    border-radius: 12px;
    box-shadow: 0 15px 35px rgba(0,0,0,0.06);
    opacity: 0;
    transform: translateY(40px);
    transition: 0.8s ease;
}

.card.visible,
.testimonial.visible {
    opacity: 1;
    transform: translateY(0);
}

/* =========================
   INSTRUCTOR
========================= */

.instructor img {
    width: 170px;
    border-radius: 50%;
    margin-bottom: 20px;
}

/* =========================
   FORM
========================= */

form input,
form textarea {
    width: 80%;
    max-width: 450px;
    padding: 12px;
    margin: 10px 0;
    border-radius: 6px;
    border: 1px solid #ccc;
}

footer {
    background: #0d1b2a;
    color: white;
    text-align: center;
    padding: 30px 8%;
}

/* =========================
   WHATSAPP
========================= */

.whatsapp {
    position: fixed;
    bottom: 25px;
    right: 25px;
    background: #25D366;
    color: white;
    padding: 16px 20px;
    border-radius: 50%;
    font-size: 24px;
    text-decoration: none;
}

/* =========================
   MOBILE
========================= */

@media(max-width: 992px) {

    header {
        height: 90px;
        padding: 0 5%;
    }

    .logo img {
        height: 75px;
    }

    nav {
        position: absolute;
        top: 90px;
        left: 0;
        width: 100%;
        background: white;
        flex-direction: column;
        display: none;
        padding: 20px 0;
        box-shadow: 0 8px 20px rgba(0,0,0,0.05);
    }

    nav a {
        margin: 12px 0;
        font-size: 16px;
    }

    nav.active {
        display: flex;
    }

    .menu-toggle {
        display: block;
    }

    .hero {
        padding: 80px 5%;
    }

    .hero h1 {
        font-size: 34px;
    }

    .cards {
        flex-direction: column;
        align-items: center;
    }

    .card, .testimonial {
        width: 90%;
    }

    form input,
    form textarea {
        width: 95%;
    }
}