* { margin: 0; padding: 0; box-sizing: border-box; }
body { font-family: 'Nunito', sans-serif; color: #333; background: #fff; }

.container { max-width: 1140px; margin: 0 auto; padding: 0 20px; }

/* HEADER */
header {
    position: fixed; top: 0; left: 0; right: 0;
    background: rgba(255,255,255,0.95);
    backdrop-filter: blur(8px);
    box-shadow: 0 1px 10px rgba(0,0,0,0.05);
    z-index: 1000;
    padding: 15px 0;
}
header .container {
    display: flex;
    justify-content: space-between;
    align-items: center;
}
.logo {
    font-size: 26px;
    font-weight: 800;
    color: #1a56db;
    letter-spacing: -0.5px;
}
.logo i { color: #1a56db; margin-right: 8px; }
nav a {
    text-decoration: none;
    color: #555;
    margin-left: 30px;
    font-weight: 600;
    font-size: 15px;
    transition: color 0.2s;
}
nav a:hover { color: #1a56db; }
.btn-nav {
    display: inline-block;
    background: #1a56db;
    color: #fff;
    padding: 10px 24px;
    border-radius: 6px;
    margin-left: 30px;
    font-weight: 700;
    font-size: 14px;
    text-decoration: none;
    transition: background 0.2s;
}
.btn-nav:hover { background: #1648c0; }

/* HERO */
.hero {
    background: url('../images/banner2.png') center center / contain no-repeat #f0f7ff;
    position: relative;
    min-height: 500px;
}
.hero::before {
    content: '';
    position: absolute;
    top: 0; left: 0; right: 0; bottom: 0;
}
.hero .container { position: relative; z-index: 1; }
.hero .container {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    align-items: center;
}
.hero h1 {
    font-size: 42px;
    font-weight: 800;
    color: #1a202c;
    line-height: 1.2;
    margin-bottom: 20px;
}
.hero h1 span { color: #1a56db; }
.hero p {
    font-size: 18px;
    line-height: 1.7;
    color: #666;
    margin-bottom: 30px;
}
.hero-btns { display: flex; gap: 15px; flex-wrap: wrap; }
.btn-primary {
    display: inline-block;
    background: #1a56db;
    color: #fff;
    padding: 14px 32px;
    border-radius: 8px;
    font-weight: 700;
    font-size: 16px;
    text-decoration: none;
    transition: all 0.2s;
}
.btn-primary:hover { background: #1648c0; transform: translateY(-2px); box-shadow: 0 8px 25px rgba(26,86,219,0.3); }
.btn-secondary {
    display: inline-block;
    background: transparent;
    color: #1a56db;
    padding: 14px 32px;
    border-radius: 8px;
    font-weight: 700;
    font-size: 16px;
    text-decoration: none;
    border: 2px solid #1a56db;
    transition: all 0.2s;
}
.btn-secondary:hover { background: #eef3ff; transform: translateY(-2px); }

.hero-image {
    background: linear-gradient(135deg, #d9ecff, #e8d9ff);
    border-radius: 20px;
    padding: 40px;
    min-height: 400px;
    display: flex;
    flex-direction: column;
    justify-content: center;
    box-shadow: 0 20px 60px rgba(26,86,219,0.12);
}
.hero-image .dashboard-preview {
    background: #fff;
    border-radius: 14px;
    padding: 25px;
    box-shadow: 0 5px 20px rgba(0,0,0,0.05);
}
.dashboard-preview h3 {
    font-size: 18px;
    color: #1a202c;
    margin-bottom: 15px;
    font-weight: 700;
}
.dashboard-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 10px;
}
.dashboard-grid .item {
    background: #f0f7ff;
    border-radius: 10px;
    padding: 15px;
    text-align: center;
    font-size: 14px;
    font-weight: 600;
    color: #1a56db;
}

/* SECTION */
.section {
    padding: 80px 0;
}
.section-title {
    text-align: center;
    font-size: 32px;
    font-weight: 800;
    color: #1a202c;
    margin-bottom: 15px;
}
.section-subtitle {
    text-align: center;
    font-size: 17px;
    color: #777;
    max-width: 700px;
    margin: 0 auto 50px;
    line-height: 1.7;
}

/* KELEBIHAN */
.kelebihan-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 25px;
}
.kelebihan-card {
    text-align: center;
    padding: 35px 25px;
    background: #f0f7ff;
    border-radius: 16px;
    box-shadow: 0 5px 25px rgba(0,0,0,0.04);
    border: 1px solid #e0eaff;
    transition: all 0.3s;
}
.kelebihan-card:nth-child(2) { background: #fdf2ff; border-color: #f0e0ff; }
.kelebihan-card:nth-child(3) { background: #fff7ed; border-color: #ffe8cc; }
.kelebihan-card:nth-child(4) { background: #f0fdf4; border-color: #d4f5e0; }
.kelebihan-card:nth-child(5) { background: #fff4f0; border-color: #fce4d6; }
.kelebihan-card:nth-child(6) { background: #f0faff; border-color: #cee8ff; }
.kelebihan-card:hover { transform: translateY(-5px); box-shadow: 0 15px 40px rgba(0,0,0,0.12); }
.kelebihan-card .icon {
    width: 70px; height: 70px;
    background: #eef3ff;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 18px;
    font-size: 28px;
    color: #1a56db;
}
.kelebihan-card h4 {
    font-size: 18px;
    font-weight: 700;
    margin-bottom: 10px;
    color: #1a202c;
}
.kelebihan-card p {
    font-size: 14px;
    color: #888;
    line-height: 1.7;
}

/* FITUR */
.fitur-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 25px;
}
.fitur-card {
    display: flex;
    gap: 20px;
    background: #fff;
    padding: 30px;
    border-radius: 16px;
    box-shadow: 0 5px 25px rgba(0,0,0,0.04);
    border: 1px solid #f0f0f0;
    transition: all 0.3s;
}
.fitur-card:hover { transform: translateY(-3px); box-shadow: 0 10px 35px rgba(0,0,0,0.07); }
.fitur-card .ficon {
    min-width: 55px; height: 55px;
    background: #eef3ff;
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 24px;
    color: #1a56db;
}
.fitur-card h4 { font-size: 17px; font-weight: 700; margin-bottom: 8px; color: #1a202c; }
.fitur-card p { font-size: 14px; color: #888; line-height: 1.6; }

/* CTA */
.cta-section {
    background: linear-gradient(135deg, #1a56db 0%, #1648c0 100%);
    padding: 70px 0;
    text-align: center;
}
.cta-section h2 {
    font-size: 34px;
    font-weight: 800;
    color: #fff;
    margin-bottom: 15px;
}
.cta-section p {
    font-size: 18px;
    color: rgba(255,255,255,0.85);
    margin-bottom: 30px;
    max-width: 600px;
    margin-left: auto;
    margin-right: auto;
}
.btn-white {
    display: inline-block;
    background: #fff;
    color: #1a56db;
    padding: 15px 36px;
    border-radius: 8px;
    font-weight: 700;
    font-size: 16px;
    text-decoration: none;
    transition: all 0.2s;
}
.btn-white:hover { background: #f0f0f0; transform: translateY(-2px); box-shadow: 0 8px 25px rgba(0,0,0,0.15); }

/* FOOTER */
footer {
    background: #1a202c;
    color: #cbd5e0;
    padding: 50px 0 30px;
}
footer .container {
    display: grid;
    grid-template-columns: 1fr 1fr 1fr;
    gap: 40px;
}
footer h4 { color: #fff; margin-bottom: 15px; font-size: 18px; }
footer p, footer a { font-size: 14px; line-height: 2; color: #a0aec0; text-decoration: none; }
footer a:hover { color: #fff; }
footer .social a {
    display: inline-block;
    width: 36px; height: 36px;
    background: #2d3748;
    border-radius: 50%;
    text-align: center;
    line-height: 36px;
    margin-right: 8px;
    color: #cbd5e0;
    transition: all 0.2s;
}
footer .social a:hover { background: #1a56db; color: #fff; }
.footer-bottom {
    text-align: center;
    padding-top: 30px;
    margin-top: 30px;
    border-top: 1px solid #2d3748;
    font-size: 14px;
    color: #718096;
}

/* RESPONSIVE */
@media (max-width: 900px) {
    .hero .container { grid-template-columns: 1fr; }
    .hero h1 { font-size: 32px; }
    .kelebihan-grid { grid-template-columns: 1fr; }
    .fitur-grid { grid-template-columns: 1fr; }
    footer .container { grid-template-columns: 1fr; }
    nav a { margin-left: 15px; font-size: 13px; }
    .btn-nav { padding: 8px 16px; margin-left: 15px; font-size: 12px; }
}

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

/* Mobile Nav - Hamburger */
.hamburger {
    display: none;
    font-size: 26px;
    color: #333;
    cursor: pointer;
    padding: 5px;
    background: none;
    border: none;
}

@media (max-width: 768px) {
    .hamburger {
        display: block;
    }

    header .container {
        position: relative;
    }

    nav {
        display: none;
        position: absolute;
        top: 100%;
        left: 0;
        right: 0;
        background: #fff;
        box-shadow: 0 5px 20px rgba(0,0,0,0.1);
        border-radius: 0 0 12px 12px;
        padding: 15px 20px;
        flex-direction: column;
    }

    nav.active {
        display: flex;
    }

    nav a {
        margin: 8px 0;
        padding: 10px 0;
        display: block;
        font-size: 15px;
        border-bottom: 1px solid #f0f0f0;
    }

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

    .btn-nav {
        margin-left: 0;
        text-align: center;
    }

    .hero {
        min-height: 300px;
        background-size: cover;
        margin-top: 60px;
    }

    .hero .container {
        min-height: 300px !important;
    }

    .hero h1 {
        font-size: 26px;
    }

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

    .hero-btns {
        flex-direction: column;
    }

    .btn-primary, .btn-secondary {
        width: 100%;
        text-align: center;
        padding: 12px 20px;
        font-size: 14px;
    }

    .section {
        padding: 50px 0;
    }

    .section-title {
        font-size: 24px;
    }

    .section-subtitle {
        font-size: 15px;
        margin-bottom: 30px;
    }

    .kelebihan-grid {
        grid-template-columns: 1fr;
        gap: 15px;
    }

    .kelebihan-card {
        padding: 25px 20px;
    }

    .fitur-grid {
        grid-template-columns: 1fr;
        gap: 15px;
    }

    .fitur-card {
        flex-direction: column;
        text-align: center;
        padding: 20px;
    }

    .fitur-card .ficon {
        margin: 0 auto 10px;
    }

    .cta-section {
        padding: 50px 20px;
    }

    .cta-section h2 {
        font-size: 24px;
    }

    .cta-section p {
        font-size: 15px;
    }

    .btn-white {
        width: 100%;
        padding: 12px 20px;
        font-size: 14px;
    }

    footer .container {
        grid-template-columns: 1fr;
        gap: 25px;
        text-align: center;
    }

    footer .social {
        justify-content: center;
        display: flex;
    }

    .hero-image {
        min-height: 250px;
        padding: 20px;
    }

    .dashboard-preview {
        padding: 15px;
    }

    .dashboard-grid {
        grid-template-columns: 1fr 1fr;
        gap: 8px;
    }
}

/* Tablet */
@media (min-width: 769px) and (max-width: 1024px) {
    .kelebihan-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .fitur-grid {
        grid-template-columns: 1fr;
    }

    .hero h1 {
        font-size: 32px;
    }
}

/* Touch-friendly */
button, a {
    -webkit-tap-highlight-color: transparent;
}

/* Scroll smooth */
html {
    scroll-behavior: smooth;
}