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

html {
    scroll-behavior: smooth;
}

body {
    font-family: 'Segoe UI', sans-serif;
    font-size: 16px;
    line-height: 1.7;
    color: white;
    background:
        radial-gradient(circle at top, rgba(0, 255, 120, 0.08), transparent 60%),
        linear-gradient(to bottom, #001a0f, #000);
    overflow-x: hidden;
}

body::before {
    content: "";
    position: fixed;
    inset: 0;
    background: radial-gradient(circle at center, rgba(0, 255, 120, 0.05), transparent 70%);
    pointer-events: none;
    z-index: -1;
}

img {
    max-width: 100%;
    height: auto;
    display: block;
}

a {
    color: #00ff88;
    text-decoration: none;
}

.navbar {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 14px 40px;
    background: rgba(0, 0, 0, 0.85);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid #00ff88;
    box-shadow: 0 0 15px rgba(0, 255, 136, 0.4);
    position: sticky;
    top: 0;
    z-index: 999;
    gap: 16px;
}

.logo {
    width: 60px;
    height: auto;
    object-fit: contain;
    filter: drop-shadow(0 0 8px #00ff88);
    flex-shrink: 0;
}

nav {
    display: flex;
    align-items: center;
    gap: 5px;
}

nav a {
    padding: 6px 12px;
    color: #00ff88;
    font-weight: bold;
    font-size: 0.85rem;
    position: relative;
    white-space: nowrap;
}

nav a::after {
    content: "";
    position: absolute;
    width: 0%;
    height: 2px;
    background: #00ff88;
    left: 12px;
    bottom: 0;
    transition: width 0.3s;
}

nav a:hover::after {
    width: calc(100% - 24px);
}

.nav-btn {
    display: flex;
    gap: 8px;
    flex-shrink: 0;
}

.menu-toggle {
    display: none;
    flex-direction: column;
    cursor: pointer;
    gap: 5px;
    flex-shrink: 0;
}

.menu-toggle span {
    width: 25px;
    height: 3px;
    background: #00ff88;
    border-radius: 3px;
    transition: 0.3s;
}

.btn {
    display: inline-block;
    padding: 9px 20px;
    border-radius: 8px;
    font-weight: bold;
    font-size: 0.85rem;
    text-decoration: none;
    transition: all 0.3s ease;
    position: relative;
    overflow: hidden;
    white-space: nowrap;
}

.btn-daftar {
    background: linear-gradient(135deg, #00ff88, #00c853);
    color: #000;
    box-shadow: 0 0 10px #00ff88, 0 0 20px rgba(0, 255, 136, 0.4);
    animation: pulse 2s infinite;
}

.btn-daftar::before {
    content: "";
    position: absolute;
    inset: -25%;
    width: 150%;
    height: 150%;
    background: radial-gradient(circle, rgba(0, 255, 136, 0.4), transparent 60%);
    opacity: 0;
    transition: 0.4s;
}

.btn-daftar:hover::before {
    opacity: 1;
}

.btn-daftar:hover {
    transform: scale(1.07);
    box-shadow: 0 0 20px #00ff88, 0 0 40px rgba(0, 255, 136, 0.7);
}

.btn-login {
    border: 1px solid #00ff88;
    color: #00ff88;
    background: transparent;
    box-shadow: 0 0 8px rgba(0, 255, 136, 0.3);
}

.btn-login:hover {
    background: #00ff88;
    color: #000;
    box-shadow: 0 0 20px #00ff88;
    transform: scale(1.05);
}

.hero {
    display: grid;
    grid-template-columns: 1fr 1fr;
    align-items: center;
    gap: 40px;
    padding: 60px 40px;
    max-width: 1200px;
    margin: 0 auto;
}

.hero-left {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 20px;
}

.hero-left img {
    width: 100%;
    max-width: 420px;
    border-radius: 14px;
    box-shadow: 0 0 30px rgba(0, 255, 136, 0.5);
    transition: transform 0.4s;
}

.hero-left img:hover {
    transform: scale(1.04);
}

.hero-right {
    display: flex;
    flex-direction: column;
    gap: 16px;
    background: rgba(0, 0, 0, 0.45);
    border: 1px solid rgba(0, 255, 136, 0.25);
    border-radius: 14px;
    padding: 36px 32px;
}

.hero-right h1 {
    color: #00ff88;
    font-size: 2rem;
    line-height: 1.3;
    text-shadow: 0 0 12px rgba(0, 255, 136, 0.6);
}

.hero-right p {
    color: #ccc;
    font-size: 1rem;
}

.cta {
    display: inline-block;
    padding: 14px 28px;
    background: #00ff88;
    color: #000;
    border-radius: 8px;
    font-weight: bold;
    font-size: 1rem;
    box-shadow: 0 0 15px rgba(0, 255, 136, 0.6);
    transition: all 0.3s;
    text-align: center;
    align-self: flex-start;
}

.cta:hover {
    box-shadow: 0 0 30px #00ff88;
    transform: scale(1.05);
}

.deskripsi {
    max-width: 900px;
    margin: 0 auto;
    padding: 50px 40px;
    text-align: center;
}

.deskripsi h2 {
    color: #00ff88;
    font-size: 1.4rem;
    margin-bottom: 20px;
    text-shadow: 0 0 8px rgba(0, 255, 136, 0.5);
}

.deskripsi p {
    color: #bbb;
    margin-bottom: 14px;
    font-size: 0.95rem;
}

.banner {
    padding: 0 40px 40px;
    max-width: 1200px;
    margin: 0 auto;
}

.banner img {
    width: 100%;
    height: auto;
    border-radius: 14px;
    box-shadow: 0 0 25px rgba(0, 255, 136, 0.4);
}

.fitur {
    padding: 50px 40px;
    max-width: 1200px;
    margin: 0 auto;
}

.icon-grid {
    display: flex;
    justify-content: center;
    gap: 24px;
    flex-wrap: wrap;
}

.icon-box {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 10px;
    background: rgba(0, 0, 0, 0.5);
    border: 1px solid rgba(0, 255, 136, 0.35);
    border-radius: 14px;
    padding: 28px 24px;
    width: 180px;
    box-shadow: 0 0 12px rgba(0, 255, 136, 0.2);
    transition: all 0.3s;
    text-align: center;
}

.icon-box:hover {
    transform: translateY(-6px);
    box-shadow: 0 0 25px rgba(0, 255, 136, 0.5);
}

.icon-box img {
    width: 58px;
    height: 58px;
    object-fit: contain;
    margin: 0 auto 10px;
    transition: 0.3s;
}

.icon-box img:hover {
    transform: scale(1.15);
    filter: drop-shadow(0 0 8px #00ff88);
}

.icon-box p {
    color: #00ff88;
    font-weight: bold;
    font-size: 0.95rem;
}

.icon-box small {
    color: #999;
    font-size: 0.78rem;
}

.review {
    padding: 50px 40px;
    max-width: 1200px;
    margin: 0 auto;
    text-align: center;
}

.review h2 {
    display: inline-block;
    padding: 12px 32px;
    border-radius: 10px;
    border: 1px solid #00ff88;
    box-shadow: 0 0 14px rgba(0, 255, 136, 0.4);
    color: #00ff88;
    font-size: 1.3rem;
    margin-bottom: 30px;
}

.review-box {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 20px;
}

.card {
    background: rgba(0, 0, 0, 0.6);
    padding: 24px;
    border-radius: 14px;
    border: 1px solid rgba(0, 255, 136, 0.3);
    box-shadow: 0 0 12px rgba(0, 255, 136, 0.15);
    transition: all 0.3s;
    text-align: left;
}

.card:hover {
    transform: translateY(-8px);
    box-shadow: 0 0 28px rgba(0, 255, 136, 0.5);
}

.card h3 {
    color: #00ff88;
    margin-bottom: 6px;
    font-size: 1rem;
}

.stars {
    color: #00ff88;
    font-size: 1rem;
    margin-bottom: 10px;
}

.card p {
    color: #bbb;
    font-size: 0.9rem;
    line-height: 1.6;
}

footer {
    text-align: center;
    padding: 24px 20px;
    background: #000;
    border-top: 1px solid rgba(0, 255, 136, 0.4);
    color: #777;
    font-size: 0.85rem;
    margin-top: 20px;
}

@keyframes pulse {
    0%, 100% { box-shadow: 0 0 10px #00ff88, 0 0 20px rgba(0, 255, 136, 0.4); }
    50% { box-shadow: 0 0 20px #00ff88, 0 0 40px rgba(0, 255, 136, 0.7); }
}
@media (max-width: 900px) {
    .navbar {
        padding: 12px 20px;
    }

    nav {
        display: none;
        position: absolute;
        top: 100%;
        left: 0;
        width: 100%;
        flex-direction: column;
        background: rgba(0, 0, 0, 0.97);
        padding: 16px 20px;
        gap: 4px;
        border-top: 1px solid rgba(0, 255, 136, 0.3);
        border-bottom: 1px solid rgba(0, 255, 136, 0.3);
    }

    nav.active {
        display: flex;
    }

    nav a {
        padding: 10px 8px;
        font-size: 0.95rem;
        border-bottom: 1px solid rgba(0, 255, 136, 0.1);
    }

    nav a:last-child {
        border-bottom: none;
    }

    .nav-btn {
        display: none;
    }

    .menu-toggle {
        display: flex;
    }

    .hero {
        grid-template-columns: 1fr;
        padding: 40px 20px;
        gap: 28px;
    }

    .hero-left img {
        max-width: 100%;
    }

    .hero-right {
        padding: 24px 20px;
    }

    .hero-right h1 {
        font-size: 1.6rem;
    }

    .cta {
        align-self: center;
        width: 100%;
        text-align: center;
    }

    .deskripsi {
        padding: 40px 20px;
    }

    .banner {
        padding: 0 20px 30px;
    }

    .fitur {
        padding: 40px 20px;
    }

    .review {
        padding: 40px 20px;
    }

    .review-box {
        grid-template-columns: 1fr;
        max-width: 480px;
        margin: 0 auto;
    }
}

@media (max-width: 480px) {
    body {
        font-size: 14px;
    }

    .logo {
        width: 48px;
    }

    .hero {
        padding: 28px 16px;
    }

    .hero-right h1 {
        font-size: 1.3rem;
    }

    .hero-right {
        padding: 20px 16px;
    }

    .deskripsi {
        padding: 30px 16px;
    }

    .deskripsi h2 {
        font-size: 1.15rem;
    }

    .banner {
        padding: 0 16px 24px;
    }

    .fitur {
        padding: 30px 16px;
    }

    .icon-grid {
        gap: 14px;
    }

    .icon-box {
        width: 130px;
        padding: 20px 14px;
    }

    .icon-box img {
        width: 46px;
        height: 46px;
    }

    .review {
        padding: 30px 16px;
    }

    .review h2 {
        font-size: 1rem;
        padding: 10px 18px;
    }

    .card {
        padding: 18px 16px;
    }
}