/* Reset dan Base Styles */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: 'Poppins', sans-serif;
}

body {
    background-color: #f9fafb;
    line-height: 1.6;
    color: #333;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 1.5rem;
}

/* Navigation */
nav {
    position: fixed;
    top: 0;
    width: 100%;
    background: white;
    box-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1);
    z-index: 50;
}

.nav-container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1rem 0;
}

.nav-links {
    display: flex;
    gap: 2rem;
    list-style: none;
}

.nav-links a {
    text-decoration: none;
    color: #374151;
    position: relative;
    transition: color 0.3s ease;
}

.nav-links a:hover {
    color: #14b8a6;
}

.nav-link::after {
    content: '';
    position: absolute;
    bottom: -5px;
    left: 0;
    width: 0;
    height: 2px;
    background: #64FFDA;
    transition: width 0.3s ease;
}

.nav-link:hover::after {
    width: 100%;
}

.menu-toggle {
    display: none;
    background: none;
    border: none;
    font-size: 1.5rem;
    cursor: pointer;
}

/* Text Styles */
.gradient-text {
    background: linear-gradient(135deg, #64FFDA 0%, #0A192F 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    font-size: 2rem;
    font-weight: bold;
}

h1 {
    font-size: 3rem;
    font-weight: bold;
    margin-bottom: 1rem;
}

h2 {
    font-size: 2.5rem;
    font-weight: bold;
    text-align: center;
    margin-bottom: 3rem;
}

h3 {
    font-size: 1.5rem;
    font-weight: bold;
    margin-bottom: 0.5rem;
}

h4 {
    font-size: 1.25rem;
    font-weight: 600;
}

p {
    margin-bottom: 1rem;
    color: #6b7280;
}

/* Sections */
section {
    padding: 5rem 0;
}

.hero-bg {
    background: linear-gradient(135deg, #0A192F 0%, #112240 100%);
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    text-align: center;
}

.hero-content {
    max-width: 800px;
}

.hero-content h1 {
    font-size: 4rem;
    margin-bottom: 1rem;
}

.hero-content .subtitle {
    font-size: 1.5rem;
    margin-bottom: 1.5rem;
    color: #64FFDA;
}

.hero-content .description {
    font-size: 1.125rem;
    max-width: 600px;
    margin: 0 auto 2rem;
    line-height: 1.8;
}

/* Buttons */
.btn-group {
    display: flex;
    gap: 1rem;
    justify-content: center;
    flex-wrap: wrap;
}

.btn-primary {
    background: linear-gradient(135deg, #64FFDA 0%, #0A192F 100%);
    color: white;
    padding: 0.75rem 2rem;
    border-radius: 9999px;
    text-decoration: none;
    font-weight: 600;
    transition: all 0.3s ease;
    display: inline-block;
}

.btn-primary:hover {
    transform: scale(1.05);
    box-shadow: 0 10px 30px rgba(100, 255, 218, 0.3);
}

.btn-secondary {
    border: 2px solid #14b8a6;
    color: #14b8a6;
    padding: 0.75rem 2rem;
    border-radius: 9999px;
    text-decoration: none;
    font-weight: 600;
    transition: all 0.3s ease;
    display: inline-block;
}

.btn-secondary:hover {
    background: #14b8a6;
    color: white;
}

/* Grid Layouts */
.grid {
    display: grid;
    gap: 2rem;
}

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

.grid-cols-2 {
    grid-template-columns: repeat(2, 1fr);
}

.grid-cols-3 {
    grid-template-columns: repeat(3, 1fr);
}

.grid-cols-4 {
    grid-template-columns: repeat(4, 1fr);
}

/* Cards */
.card {
    background: white;
    border-radius: 0.5rem;
    box-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1);
    overflow: hidden;
}

.card-hover {
    transition: all 0.3s ease;
}

.card-hover:hover {
    transform: translateY(-10px);
    box-shadow: 0 20px 40px rgba(100, 255, 218, 0.2);
}

.card img {
    width: 100%;
    height: 12rem;
    object-fit: cover;
}

.card-content {
    padding: 1.5rem;
}

.skill-card {
    background: rgba(255, 255, 255, 0.05);
    backdrop-filter: blur(10px);
    border: 1px solid rgba(100, 255, 218, 0.2);
    padding: 1.5rem;
    border-radius: 0.5rem;
    text-align: center;
}

.skill-logo {
    width: 60px;
    height: 60px;
    object-fit: contain;
    margin-bottom: 1rem;
    transition: transform 0.3s ease;
}

.skill-card:hover .skill-logo {
    transform: scale(1.1);
}

/* Tags */
.tag-group {
    display: flex;
    gap: 0.5rem;
    flex-wrap: wrap;
}

.tag {
    background: #ccfbf1;
    color: #0f766e;
    padding: 0.25rem 0.75rem;
    border-radius: 9999px;
    font-size: 0.875rem;
}

/* About Section */
.about-content {
    display: flex;
    align-items: center;
    gap: 3rem;
    flex-wrap: wrap;
}

.about-image {
    flex: 1;
    min-width: 300px;
    text-align: center;
}

.about-image img {
    width: 16rem;
    height: 16rem;
    border-radius: 50%;
    object-fit: cover;
    box-shadow: 0 25px 50px -12px rgba(0, 0, 0, 0.25);
}

.about-text {
    flex: 2;
    min-width: 300px;
}

.about-text p {
    margin-bottom: 1.5rem;
    line-height: 1.8;
}

/* Skills Section */
#skills .grid {
    max-width: 800px;
    margin: 0 auto;
}

/* Form */
.form-container {
    max-width: 600px;
    margin: 0 auto;
}

.form {
    background: white;
    border-radius: 0.5rem;
    box-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1);
    padding: 2rem;
    margin-bottom: 2rem;
}

.form-group {
    margin-bottom: 1.5rem;
}

.form-label {
    display: block;
    color: #374151;
    font-weight: 600;
    margin-bottom: 0.5rem;
}

.form-input {
    width: 100%;
    padding: 0.75rem 1rem;
    border-radius: 0.5rem;
    border: 1px solid #d1d5db;
    outline: none;
    transition: border-color 0.3s ease;
}

.form-input:focus {
    border-color: #14b8a6;
}

.form-textarea {
    width: 100%;
    padding: 0.75rem 1rem;
    border-radius: 0.5rem;
    border: 1px solid #d1d5db;
    outline: none;
    transition: border-color 0.3s ease;
    resize: vertical;
    min-height: 120px;
}

.form-textarea:focus {
    border-color: #14b8a6;
}

.form-submit {
    width: 100%;
    background: linear-gradient(135deg, #64FFDA 0%, #0A192F 100%);
    color: white;
    padding: 0.75rem;
    border-radius: 0.5rem;
    border: none;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
}

.form-submit:hover {
    transform: scale(1.02);
}

/* Social Links */
.social-links {
    display: flex;
    justify-content: center;
    gap: 1.5rem;
}

.social-links a {
    transition: transform 0.3s ease;
}

.social-links a:hover {
    transform: scale(1.1);
}

.social-logo {
    width: 40px;
    height: 40px;
    object-fit: contain;
    transition: opacity 0.3s ease;
}

.social-logo:hover {
    opacity: 0.8;
}

/* Footer */
footer {
    background: #374151;
    color: white;
    padding: 2rem 0;
    text-align: center;
}

/* Background Colors */
.bg-white {
    background-color: white;
}

.bg-gray-100 {
    background-color: #f3f4f6;
}

/* Animations */
.fade-in {
    opacity: 0;
    transform: translateY(30px);
    animation: fadeIn 0.8s ease forwards;
}

@keyframes fadeIn {
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.stagger-1 { animation-delay: 0.1s; }
.stagger-2 { animation-delay: 0.2s; }
.stagger-3 { animation-delay: 0.3s; }
.stagger-4 { animation-delay: 0.4s; }

/* Responsive Design */
@media (max-width: 768px) {
    .nav-links {
        display: none;
    }
    
    .menu-toggle {
        display: block;
    }
    
    .hero-content h1 {
        font-size: 2.5rem;
    }
    
    .hero-content .subtitle {
        font-size: 1.25rem;
    }
    
    .grid-cols-2 {
        grid-template-columns: 1fr;
    }
    
    .grid-cols-3 {
        grid-template-columns: 1fr;
    }
    
    .grid-cols-4 {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .about-content {
        flex-direction: column;
        text-align: center;
    }
    
    .btn-group {
        flex-direction: column;
        align-items: center;
    }
}

@media (max-width: 480px) {
    .container {
        padding: 0 1rem;
    }
    
    .hero-content h1 {
        font-size: 2rem;
    }
    
    .grid-cols-4 {
        grid-template-columns: 1fr;
    }
}