:root {
    --primary: #2563eb;
    --secondary: #0f172a;
    --accent: #f59e0b;
    --light: #f8fafc;
    --gray: #64748b;
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: 'Roboto', 'Heebo', sans-serif;
}

body {
    color: var(--secondary);
    line-height: 1.6;
    background-color: #f9fafb;
    overflow-x: hidden;
}

.container-custom {
    width: 100%;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

/* Header Styles */
header {
    background-color: rgba(255, 255, 255, 0.85);
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
    position: fixed;
    width: 100%;
    top: 0;
    z-index: 1000;
    backdrop-filter: blur(8px);
}

.header-container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 15px 0;
}

.logo {
    font-size: 24px;
    font-weight: 700;
    color: var(--primary);
    text-decoration: none;
    display: flex;
    align-items: center;
}

.logo span {
    color: var(--accent);
}

.logo-image {
    height: 40px;
    margin-right: 10px;
}

/* ==================== */
/* MOBILE NAVIGATION STYLES - TAMBAHAN */
/* ==================== */

/* Tombol Burger */
.nav-toggle {
    display: none;
    flex-direction: column;
    background: none;
    border: none;
    cursor: pointer;
    padding: 5px;
    z-index: 1001;
}

.hamburger {
    width: 25px;
    height: 3px;
    background: var(--secondary);
    margin: 3px 0;
    transition: 0.3s;
    border-radius: 2px;
}

/* Style untuk navigasi di mobile */
@media (max-width: 768px) {
    .nav-toggle {
        display: flex;
    }

    /* Hamburger animation saat aktif */
    .nav-toggle.active .hamburger:nth-child(1) {
        transform: rotate(45deg) translate(6px, 6px);
    }

    .nav-toggle.active .hamburger:nth-child(2) {
        opacity: 0;
    }

    .nav-toggle.active .hamburger:nth-child(3) {
        transform: rotate(-45deg) translate(6px, -6px);
    }

    nav {
        position: fixed;
        top: 0;
        right: -100%;
        width: 280px;
        height: 100vh;
        background: white;
        box-shadow: -2px 0 20px rgba(0,0,0,0.15);
        transition: right 0.3s ease;
        z-index: 999;
        padding: 80px 25px 25px;
        overflow-y: auto;
    }

    nav.active {
        right: 0;
    }

    nav ul {
        flex-direction: column;
        gap: 0;
        align-items: flex-start;
    }

    nav ul li {
        width: 100%;
        margin: 5px 0;
    }

    nav ul li a {
        padding: 12px 15px;
        width: 100%;
        border-radius: 8px;
        display: flex;
        justify-content: space-between;
        align-items: center;
    }

    /* Dropdown menu di mobile */
    .dropdown-menu {
        position: static;
        opacity: 1;
        visibility: visible;
        transform: none;
        box-shadow: none;
        background: rgba(37, 99, 235, 0.05);
        margin: 5px 0 5px 15px;
        padding: 0;
        width: calc(100% - 15px);
        display: none;
        border-radius: 5px;
        border-left: 3px solid var(--primary);
    }

    .dropdown-menu.active {
        display: block;
    }

    .dropdown-menu li {
        margin: 0;
    }

    .dropdown-menu a {
        padding: 10px 15px;
        font-size: 0.95rem;
        color: var(--gray);
    }

    .dropdown-menu a:hover {
        background-color: rgba(37, 99, 235, 0.1);
    }

    /* Overlay saat menu aktif */
    .nav-overlay {
        position: fixed;
        top: 0;
        left: 0;
        width: 100%;
        height: 100%;
        background: rgba(0,0,0,0.5);
        z-index: 998;
        display: none;
        backdrop-filter: blur(2px);
    }

    .nav-overlay.active {
        display: block;
    }

    /* Header container adjustment untuk mobile */
    .header-container {
        padding: 12px 20px;
    }

    /* Perbaikan untuk header layout di mobile */
    .header-container {
        flex-direction: row;
        text-align: left;
    }
    
    .logo {
        margin-bottom: 0;
    }
}

/* Style untuk desktop - pastikan nav visible */
@media (min-width: 769px) {
    nav {
        display: block !important;
    }
    
    .nav-overlay {
        display: none !important;
    }
}

/* ==================== */
/* STYLE YANG SUDAH ADA - TIDAK BERUBAH */
/* ==================== */

/* Logo Animation Container */
.logo-animation-container {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: -1;
    pointer-events: none;
    overflow: hidden;
}

.logo-particle {
    position: absolute;
    background-size: contain;
    background-repeat: no-repeat;
    background-position: center;
    opacity: 0.7;
    transition: transform 0.5s ease-out;
    pointer-events: none;
    z-index: -1;
}

/* Transparent Form Areas */
.transparent-area {
    background-color: rgba(255, 255, 255, 0.8);
    backdrop-filter: blur(8px);
    border-radius: 10px;
    padding: 25px;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.05);
}

/* Hero Section */
.hero {
    padding: 150px 0 100px;
    position: relative;
    overflow: hidden;
}

.hero-content {
    position: relative;
    z-index: 2;
}

.hero-text h1 {
    font-size: 3rem;
    margin-bottom: 20px;
    color: var(--secondary);
}

.hero-text h1 span {
    color: var(--primary);
}

.hero-text p {
    font-size: 1.2rem;
    color: var(--gray);
    margin-bottom: 30px;
    max-width: 90%;
}

/* Platform Features */
.feature-icon {
    width: 60px;
    height: 60px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 10px;
    margin-bottom: 15px;
}

.platform-feature {
    transition: transform 0.3s;
    background: rgba(255, 255, 255, 0.85);
    border-radius: 10px;
    padding: 25px;
    height: 100%;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.05);
    backdrop-filter: blur(8px);
}

.platform-feature:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 25px rgba(0, 0, 0, 0.1);
    background: rgba(255, 255, 255, 0.95);
}

/* Pricing Cards */
.pricing-card {
    border: 1px solid rgba(233, 236, 239, 0.7);
    border-radius: 10px;
    transition: all 0.3s;
    background: rgba(255, 255, 255, 0.85);
    backdrop-filter: blur(8px);
}

.pricing-card:hover {
    box-shadow: 0 10px 25px rgba(0,0,0,0.1);
    transform: translateY(-5px);
    background: rgba(255, 255, 255, 0.95);
}

/* Buttons */
.btn-primary {
    background-color: var(--primary);
    border-color: var(--primary);
    padding: 12px 30px;
    border-radius: 50px;
    font-weight: 600;
    transition: all 0.3s;
}

.btn-primary:hover {
    background-color: #1d4ed8;
    transform: translateY(-2px);
}

.btn-outline-primary {
    color: var(--primary);
    border-color: var(--primary);
    padding: 12px 30px;
    border-radius: 50px;
    font-weight: 600;
    transition: all 0.3s;
}

.btn-outline-primary:hover {
    background-color: rgba(37, 99, 235, 0.1);
    transform: translateY(-2px);
}

/* Section Styling */
.section-title {
    text-align: center;
    margin-bottom: 50px;
}

.section-title h6 {
    position: relative;
    display: inline-block;
    color: var(--primary);
    margin-bottom: 15px;
}

.section-title h6::before {
    content: "";
    position: absolute;
    left: -20px;
    top: 50%;
    transform: translateY(-50%);
    width: 15px;
    height: 2px;
    background: var(--primary);
}

/* Form Styling */
.form-control, .form-select {
    background-color: rgba(255, 255, 255, 0.7);
    border: 1px solid rgba(0, 0, 0, 0.1);
}

.form-control:focus, .form-select:focus {
    background-color: rgba(255, 255, 255, 0.9);
    box-shadow: 0 0 0 0.2rem rgba(37, 99, 235, 0.2);
}

/* Footer */
footer {
    background-color: rgba(37, 99, 235, 0.9);
    color: white;
    padding: 50px 0 20px;
    backdrop-filter: blur(3px);
}

/* Responsive Design */
@media (max-width: 992px) {
    .hero-text h1 {
        font-size: 2.5rem;
    }
}

@media (max-width: 768px) {
    .hero-text h1 {
        font-size: 2rem;
    }
    
    .hero-text p {
        font-size: 1rem;
    }
}

/* Animations */
@keyframes float {
    0% { transform: translateY(0px) rotate(0deg); }
    50% { transform: translateY(-10px) rotate(3deg); }
    100% { transform: translateY(0px) rotate(0deg); }
}

.floating {
    animation: float 6s ease-in-out infinite;
}

/* Navigation Styles */
nav ul {
    display: flex;
    list-style: none;
    gap: 20px;
    margin: 0;
    padding: 0;
    align-items: center;
}

nav ul li {
    position: relative;
}

nav ul li a {
    text-decoration: none;
    color: var(--secondary);
    font-weight: 500;
    padding: 8px 12px;
    border-radius: 5px;
    transition: all 0.3s;
    display: flex;
    align-items: center;
}

nav ul li a:hover {
    background-color: rgba(37, 99, 235, 0.1);
    color: var(--primary);
}

nav ul li a i {
    margin-left: 5px;
    font-size: 12px;
    transition: transform 0.3s;
}

/* Dropdown Menu */
.dropdown-menu {
    position: absolute;
    top: 100%;
    left: 0;
    background: white;
    min-width: 220px;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.1);
    border-radius: 8px;
    padding: 10px 0;
    opacity: 0;
    visibility: hidden;
    transform: translateY(10px);
    transition: all 0.3s ease;
    z-index: 1000;
    display: block !important;
}

nav ul li:hover .dropdown-menu {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

nav ul li:hover .dropdown-toggle i {
    transform: rotate(180deg);
}

.dropdown-menu li {
    margin: 0;
    padding: 0;
    width: 100%;
}

.dropdown-menu a {
    padding: 10px 20px;
    display: block;
    color: var(--secondary);
    text-decoration: none;
    transition: all 0.3s;
    white-space: nowrap;
}

.dropdown-menu a:hover {
    background-color: rgba(37, 99, 235, 0.1);
    color: var(--primary);
}

/* WhatsApp Button Styles */
.btn-whatsapp {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    background: #7489f4;
    color: white;
    text-decoration: none;
    padding: 12px 20px;
    border-radius: 8px;
    margin: 5px 0;
    text-align: center;
    font-weight: bold;
    transition: all 0.3s ease;
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
    border: none;
    cursor: pointer;
    font-size: 1rem;
    gap: 8px;
    width: 100%;
}

.btn-whatsapp:hover {
    background: #5068d0;
    transform: translateY(-2px);
    box-shadow: 0 6px 12px rgba(0, 0, 0, 0.15);
    color: white;
}

.btn-whatsapp i {
    font-size: 1.2rem;
}

.btn-whatsapp-outline {
    background: transparent;
    color: #254bd3;
    border: 2px solid #2542d3;
}

.btn-whatsapp-outline:hover {
    background: #255fd3;
    color: white;
}

.whatsapp-float {
    position: fixed;
    width: 60px;
    height: 60px;
    bottom: 40px;
    right: 40px;
    background-color: #253fd3;
    color: #FFF;
    border-radius: 50px;
    text-align: center;
    font-size: 30px;
    box-shadow: 2px 2px 3px #999;
    z-index: 100;
    display: flex;
    align-items: center;
    justify-content: center;
    text-decoration: none;
}

.whatsapp-float:hover {
    background-color: #22128c;
    color: white;
}

/* SEO Optimization: Semantic HTML improvements */
.visually-hidden {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    white-space: nowrap;
    border: 0;
}

/* Improved heading hierarchy */
.main-heading {
    font-size: 2.5rem;
    margin-bottom: 1rem;
}

/* Better semantic structure */
main {
    min-height: 70vh;
}