/* ================= GLOBAL ================= */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: Arial, sans-serif;
}

/* ================= BACKGROUND ANIMASI ================= */
body {
    min-height: 100vh;
    color: #222;
    background: linear-gradient(-45deg, #c8ecff, #9ed9ff, #dff6ff, #bde8ff);
    background-size: 400% 400%;
    animation: gradientMove 15s ease infinite;
    position: relative;
    overflow-x: hidden;
}

/* Animasi gradient */
@keyframes gradientMove {
    0% { background-position: 0% 50%; }
    50% { background-position: 100% 50%; }
    100% { background-position: 0% 50%; }
}

/* Glow effect */
body::before {
    content: "";
    position: fixed;
    top: -20%;
    left: -20%;
    width: 140%;
    height: 140%;
    background: radial-gradient(circle at 30% 30%, rgba(255,255,255,0.4), transparent 60%),
                radial-gradient(circle at 70% 70%, rgba(255,255,255,0.3), transparent 60%);
    animation: floatLight 18s linear infinite;
    z-index: -1;
}

@keyframes floatLight {
    0% { transform: translate(0,0); }
    50% { transform: translate(3%, -3%); }
    100% { transform: translate(0,0); }
}

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

/* ================= HEADER ================= */
.header {
    background: #111;
    padding: 15px 0;
}

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

.logo img {
    height: 50px;
}

.btn-login {
    background: #d62828;
    color: #fff;
    padding: 10px 20px;
    text-decoration: none;
    border-radius: 6px;
    font-weight: bold;
    transition: 0.3s;
}

.btn-login:hover {
    transform: translateY(-2px);
}

/* ================= HERO ================= */
.hero {
    margin-top: 25px;
}

.hero .container {
    border-radius: 14px;
    overflow: hidden;
    position: relative;
    box-shadow: 0 15px 40px rgba(0,0,0,0.15);
}

.hero img {
    width: 100%;
    height: auto;
    display: block;
}

/* ================= CONTENT ================= */
.content {
    background: rgba(255,255,255,0.88);
    backdrop-filter: blur(10px);
    padding: 40px 25px;
    margin-top: 35px;
    border-radius: 14px;
    box-shadow: 0 15px 40px rgba(0,0,0,0.08);
}

.content h2 {
    margin-bottom: 15px;
}

.content h3 {
    margin-top: 25px;
    margin-bottom: 10px;
}

.content ul {
    margin-left: 20px;
    margin-bottom: 10px;
}

.content p {
    margin-bottom: 15px;
    line-height: 1.6;
}

/* ================= CONTACT FORM ================= */
.contact-form {
    margin-top: 20px;
}

.contact-form .row {
    display: flex;
    gap: 10px;
}

.contact-form input,
.contact-form textarea {
    width: 100%;
    padding: 12px;
    margin-bottom: 12px;
    border: 1px solid #ccc;
    border-radius: 6px;
    transition: 0.3s;
}

.contact-form input:focus,
.contact-form textarea:focus {
    border-color: #87c8ff;
    outline: none;
    box-shadow: 0 0 8px rgba(135,200,255,0.5);
}

.contact-form button {
    background: #d62828;
    color: #fff;
    padding: 12px 20px;
    border: none;
    border-radius: 6px;
    cursor: pointer;
    font-weight: bold;
    transition: 0.3s;
}

.contact-form button:hover {
    opacity: 0.9;
    transform: translateY(-2px);
}

/* ================= FOOTER ================= */
.footer {
    background: #111;
    color: #fff;
    padding: 20px 0;
    text-align: center;
    margin-top: 50px;
}

/* ================= FLOATING BUTTON ================= */
.floating-btn {
    position: fixed;
    bottom: 0;
    left: 0;
    width: 100%;
    background: #d62828;
    color: #fff;
    text-align: center;
    padding: 16px 0;
    text-decoration: none;
    font-weight: bold;
    transition: 0.3s;
}

.floating-btn:hover {
    background: #b71c1c;
}

/* ================= RESPONSIVE ================= */
@media(max-width: 768px) {
    .contact-form .row {
        flex-direction: column;
    }

    .content {
        padding: 30px 18px;
    }
}