/* Reset dan Base Styles */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
}

:root {
    --primary-color: #3a7bd5;
    --secondary-color: #00d2ff;
    --accent-color: #e74c3c;
    --light-color: #ecf0f1;
    --dark-color: #16222a;
    --text-color: #333;
    --text-light: #777;
    --bg-color: #f9f9f9;
    --card-bg: white;
    --header-bg: white;
    --footer-bg: #16222a;
}

/* Dark Mode Variables */
.dark-mode {
    --primary-color: #3a7bd5;
    --secondary-color: #00d2ff;
    --text-color: #f0f0f0;
    --text-light: #b0b0b0;
    --bg-color: #121212;
    --card-bg: #1e1e1e;
    --header-bg: #1a1a1a;
    --footer-bg: #0d0d0d;
    --dark-color: #1a1a1a;
}

body {
    line-height: 1.6;
    color: var(--text-color);
    background-color: var(--bg-color);
    transition: all 0.5s ease;
    overflow-x: hidden;
}

/* Animated Background */
.bg-animation {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: -1;
    background: linear-gradient(-45deg, #3a7bd5, #00d2ff, #3a6073, #16222a);
    background-size: 400% 400%;
    animation: gradientBG 15s ease infinite;
    opacity: 0.15;
}

@keyframes gradientBG {
    0% {
        background-position: 0% 50%;
    }
    50% {
        background-position: 100% 50%;
    }
    100% {
        background-position: 0% 50%;
    }
}

.dark-mode .bg-animation {
    opacity: 0.25;
}

a {
    text-decoration: none;
    color: var(--primary-color);
    transition: color 0.3s;
}

a:hover {
    color: var(--secondary-color);
}

.btn {
    display: inline-block;
    background: var(--primary-color);
    color: white;
    padding: 0.8rem 1.5rem;
    border: none;
    border-radius: 5px;
    cursor: pointer;
    transition: all 0.3s ease;
    font-weight: 500;
}

.btn:hover {
    background: var(--secondary-color);
    transform: translateY(-3px);
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.2);
}

.highlight {
    color: var(--primary-color);
    font-weight: 600;
}

section {
    padding: 6rem 10%;
    position: relative;
}

section::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: var(--bg-color);
    opacity: 0.92;
    z-index: -1;
}

h1, h2, h3, h4 {
    margin-bottom: 1.5rem;
    color: var(--text-color);
}

h1 {
    font-size: 2.8rem;
    line-height: 1.2;
}

h2 {
    font-size: 2.2rem;
    position: relative;
    display: inline-block;
}

h2::after {
    content: '';
    position: absolute;
    bottom: -10px;
    left: 0;
    width: 60px;
    height: 4px;
    background: var(--primary-color);
    border-radius: 2px;
}

/* Header Styles */
header {
    background: var(--header-bg);
    box-shadow: 0 2px 15px rgba(0, 0, 0, 0.1);
    position: fixed;
    width: 100%;
    z-index: 1000;
    transition: all 0.4s ease;
}

nav {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1.2rem 10%;
    max-width: 1400px;
    margin: 0 auto;
}

.logo {
    font-size: 1.8rem;
    font-weight: 700;
    color: var(--primary-color);
    display: flex;
    align-items: center;
}

.logo i {
    margin-right: 10px;
    font-size: 1.5rem;
}

.nav-links {
    display: flex;
    list-style: none;
    align-items: center;
}

.nav-links li {
    margin-left: 2.5rem;
}

.nav-links a {
    color: var(--text-color);
    font-weight: 500;
    font-size: 1.05rem;
    position: relative;
}

.nav-links a::after {
    content: '';
    position: absolute;
    bottom: -5px;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--primary-color);
    transition: width 0.3s ease;
}

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

.burger {
    display: none;
    cursor: pointer;
    z-index: 1001;
}

/* Dark Mode Toggle */
.theme-toggle {
    background: none;
    border: none;
    color: var(--text-color);
    font-size: 1.3rem;
    cursor: pointer;
    margin-left: 1.5rem;
    transition: all 0.3s ease;
}

.theme-toggle:hover {
    color: var(--primary-color);
    transform: rotate(20deg);
}

/* Hero Section */
.hero {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding-top: 8rem;
    min-height: 90vh;
}

.hero-content {
    flex: 1;
    max-width: 600px;
}

.hero-content h1 {
    margin-bottom: 1rem;
    animation: fadeInUp 1s ease;
}

.hero-subtitle {
    font-size: 1.2rem;
    color: var(--text-light);
    margin-bottom: 2rem;
    animation: fadeInUp 1s ease 0.2s forwards;
    opacity: 0;
}

.profile-summary {
    max-width: 600px;
    margin-top: 1.5rem;
}

.profile-summary p {
    font-size: 1.1rem;
    line-height: 1.8;
    margin-bottom: 2rem;
    color: var(--text-light);
}

.hero-btns {
    display: flex;
    gap: 1rem;
    animation: fadeInUp 1s ease 0.4s forwards;
    opacity: 0;
}

.btn-outline {
    background: transparent;
    border: 2px solid var(--primary-color);
    color: var(--primary-color);
}

.btn-outline:hover {
    background: var(--primary-color);
    color: white;
}

.hero-image {
    flex: 1;
    display: flex;
    justify-content: center;
    flex-direction: column;
    align-items: center;
    animation: fadeIn 1s ease 0.6s forwards;
    opacity: 0;
    position: relative;
}

.hero-image img {
    width: 350px;
    height: 350px;
    border-radius: 20px;
    object-fit: cover;
    border: 5px solid var(--primary-color);
    box-shadow: 0 15px 40px rgba(0, 0, 0, 0.15);
    transition: transform 0.5s ease;
}

.hero-image img:hover {
    transform: scale(1.03);
}

.image-upload-container {
    margin-top: 15px;
}

.upload-label {
    display: inline-block;
    padding: 8px 15px;
    background: var(--primary-color);
    color: white;
    border-radius: 5px;
    cursor: pointer;
    transition: all 0.3s ease;
}

.upload-label:hover {
    background: var(--secondary-color);
}

/* About Section */
.about {
    padding-top: 4rem;
    padding-bottom: 4rem;
}

.section-header {
    text-align: center;
    margin-bottom: 3rem;
}

.section-subtitle {
    color: var(--primary-color);
    font-size: 1.1rem;
    margin-top: -1rem;
}

.about-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 2rem;
    max-width: 1200px;
    margin: 0 auto;
}

.about-card {
    background: var(--card-bg);
    padding: 2rem;
    border-radius: 15px;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.08);
}

.about-card h3 {
    color: var(--primary-color);
    margin-bottom: 1.5rem;
    display: flex;
    align-items: center;
    gap: 10px;
}

.skills-highlight {
    margin-top: 2rem;
    padding: 1.5rem;
    background: rgba(58, 123, 213, 0.05);
    border-radius: 10px;
    border-left: 3px solid var(--primary-color);
}

.skills-highlight h4 {
    display: flex;
    align-items: center;
    gap: 10px;
    color: var(--primary-color);
    margin-bottom: 1rem;
}

.skills-highlight ul {
    list-style: none;
}

.skills-highlight li {
    position: relative;
    padding-left: 1.5rem;
    margin-bottom: 0.8rem;
}

.skills-highlight li::before {
    content: "▹";
    position: absolute;
    left: 0;
    color: var(--primary-color);
}

.about-details {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 1.5rem;
}

.detail-item {
    background: var(--card-bg);
    padding: 1.5rem;
    border-radius: 10px;
    display: flex;
    gap: 1rem;
    align-items: center;
    box-shadow: 0 5px 20px rgba(0, 0, 0, 0.05);
    transition: transform 0.3s ease;
}

.detail-item:hover {
    transform: translateY(-5px);
}

.detail-item i {
    font-size: 1.5rem;
    color: var(--primary-color);
    width: 40px;
    height: 40px;
    background: rgba(58, 123, 213, 0.1);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
}

.detail-item h4 {
    font-size: 0.9rem;
    color: var(--text-light);
    margin-bottom: 0.3rem;
}

.detail-item p {
    font-size: 1.05rem;
    font-weight: 500;
}

/* Keahlian Section */
.skills-container {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
    gap: 2.5rem;
    margin-top: 3rem;
}

.skill-category {
    background: var(--card-bg);
    padding: 2rem;
    border-radius: 15px;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.08);
    transition: transform 0.3s ease;
}

.skill-category:hover {
    transform: translateY(-10px);
}

.skill-category h3 {
    font-size: 1.4rem;
    margin-bottom: 1.5rem;
    display: flex;
    align-items: center;
}

.skill-category h3 i {
    margin-right: 10px;
    color: var(--primary-color);
}

.skill-item {
    margin-bottom: 1.8rem;
}

.skill-item p {
    display: flex;
    justify-content: space-between;
    margin-bottom: 0.5rem;
    font-weight: 500;
}

.skill-bar {
    width: 100%;
    height: 10px;
    background: #eee;
    border-radius: 5px;
    overflow: hidden;
}

.skill-level {
    height: 100%;
    border-radius: 5px;
    background: var(--primary-color);
    position: relative;
    transition: width 1.5s ease;
}

.skill-level::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(90deg, 
                rgba(255,255,255,0.1) 0%, 
                rgba(255,255,255,0.3) 50%, 
                rgba(255,255,255,0.1) 100%);
    background-size: 200% 100%;
    animation: shine 2s infinite;
}

@keyframes shine {
    0% { background-position: 200% 0; }
    100% { background-position: -200% 0; }
}

/* Progress bar tiap skill */
.network   { width: 90%; }
.network   {width:  85%; }
.mikrotik  { width: 85%; }
.pentest   { width: 85%; }
.cyber     { width: 85%; }
.linux     { width: 80%; }
.firewall  { width: 80%; }
.routing   { width: 75%; }
.vlan      { width: 80%; }
.wireless  { width: 70%; }
.hotspot   { width: 90%; }


/* Sertifikat Section */
.certificates-container {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
    gap: 2.5rem;
    margin-top: 3rem;
}

.certificate-card {
    background: var(--card-bg);
    border-radius: 15px;
    overflow: hidden;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.08);
    transition: all 0.3s ease;
}

.certificate-card:hover {
    transform: translateY(-10px);
    box-shadow: 0 15px 40px rgba(0, 0, 0, 0.15);
}

.certificate-image {
    height: 220px;
    overflow: hidden;
    position: relative;
}

.certificate-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.5s ease;
}

.certificate-card:hover .certificate-image img {
    transform: scale(1.1);
}

.certificate-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.6);
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    transition: opacity 0.3s ease;
}

.certificate-card:hover .certificate-overlay {
    opacity: 1;
}

.view-certificate {
    color: white;
    background: var(--primary-color);
    padding: 0.7rem 1.5rem;
    border-radius: 5px;
    font-weight: 500;
    border: none;
    cursor: pointer;
    transition: all 0.3s ease;
}

.view-certificate:hover {
    background: var(--secondary-color);
    transform: translateY(-3px);
}

.certificate-info {
    padding: 1.8rem;
}

.certificate-info h3 {
    font-size: 1.3rem;
    margin-bottom: 0.8rem;
}

.certificate-info p {
    color: var(--text-light);
    margin-bottom: 0.5rem;
    font-size: 0.95rem;
}

.certificate-upload {
    margin-top: 3rem;
    background: var(--card-bg);
    padding: 2rem;
    border-radius: 15px;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.08);
}

.certificate-upload h3 {
    margin-bottom: 1.5rem;
    color: var(--primary-color);
    display: flex;
    align-items: center;
    gap: 10px;
}

.certificate-upload h3 i {
    font-size: 1.2rem;
}

/* Modal Sertifikat */
.modal {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.9);
    z-index: 2000;
    align-items: center;
    justify-content: center;
    animation: fadeIn 0.3s ease;
}

.modal-content {
    background: var(--card-bg);
    max-width: 900px;
    width: 90%;
    max-height: 90vh;
    overflow: auto;
    border-radius: 15px;
    position: relative;
    box-shadow: 0 20px 50px rgba(0, 0, 0, 0.3);
}

.modal-image {
    width: 100%;
    max-height: 70vh;
    object-fit: contain;
    display: block;
}

.modal-info {
    padding: 2rem;
}

.close-modal {
    position: absolute;
    top: 15px;
    right: 15px;
    font-size: 1.8rem;
    color: white;
    background: var(--accent-color);
    width: 45px;
    height: 45px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    z-index: 10;
    transition: all 0.3s ease;
}

.close-modal:hover {
    transform: rotate(90deg);
    background: #ff3b3b;
}

/* Kontak Section */
.contact-container {
    display: flex;
    gap: 4rem;
    margin-top: 3rem;
}

#contact-form {
    flex: 1;
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
}

.form-group {
    position: relative;
}

#contact-form input,
#contact-form textarea {
    width: 100%;
    padding: 1.2rem;
    border: 2px solid #ddd;
    border-radius: 8px;
    font-size: 1rem;
    background: var(--card-bg);
    color: var(--text-color);
    transition: all 0.3s ease;
}

#contact-form input:focus,
#contact-form textarea:focus {
    border-color: var(--primary-color);
    outline: none;
    box-shadow: 0 0 0 3px rgba(58, 123, 213, 0.2);
}

#contact-form textarea {
    min-height: 180px;
    resize: vertical;
}

.contact-info {
    flex: 0 0 350px;
    background: var(--card-bg);
    padding: 2.5rem;
    border-radius: 15px;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.08);
}

.contact-item {
    display: flex;
    align-items: flex-start;
    margin-bottom: 2rem;
    gap: 1.5rem;
}

.contact-item i {
    font-size: 1.5rem;
    color: var(--primary-color);
    margin-top: 3px;
}

.contact-details h3 {
    font-size: 1.2rem;
    margin-bottom: 0.5rem;
}

.contact-details p {
    color: var(--text-light);
    line-height: 1.6;
}

/* Footer */
footer {
    text-align: center;
    padding: 3rem;
    background: var(--footer-bg);
    color: white;
}

.social-links {
    display: flex;
    justify-content: center;
    gap: 2rem;
    margin-bottom: 1.5rem;
}

.social-links a {
    color: white;
    font-size: 1.8rem;
    transition: all 0.3s ease;
    display: flex;
    width: 50px;
    height: 50px;
    border-radius: 50%;
    align-items: center;
    justify-content: center;
    background: rgba(255, 255, 255, 0.1);
}

.social-links a:hover {
    color: var(--primary-color);
    background: rgba(255, 255, 255, 0.2);
    transform: translateY(-5px);
}

.footer-text {
    max-width: 600px;
    margin: 0 auto;
    line-height: 1.8;
    color: rgba(255, 255, 255, 0.7);
}

/* Floating Network Icons */
.floating-icons {
    position: fixed;
    bottom: 30px;
    right: 30px;
    display: flex;
    flex-direction: column;
    gap: 15px;
    z-index: 100;
}

.network-icon {
    width: 50px;
    height: 50px;
    background: var(--primary-color);
    color: white;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.4rem;
    box-shadow: 0 8px 25px rgba(0, 0, 0, 0.2);
    cursor: pointer;
    transition: all 0.3s ease;
    animation: float 3s ease-in-out infinite;
}

.network-icon:hover {
    background: var(--secondary-color);
    transform: scale(1.1) translateY(-5px);
}

.network-icon:nth-child(1) { animation-delay: 0s; }
.network-icon:nth-child(2) { animation-delay: 0.5s; }
.network-icon:nth-child(3) { animation-delay: 1s; }

@keyframes float {
    0%, 100% { transform: translateY(0); }
    50% { transform: translateY(-15px); }
}

@keyframes fadeIn {
    from { opacity: 0; }
    to { opacity: 1; }
}

@keyframes fadeInUp {
    from { 
        opacity: 0;
        transform: translateY(20px);
    }
    to { 
        opacity: 1;
        transform: translateY(0);
    }
}

/* Responsive Design */
@media (max-width: 1200px) {
    section {
        padding: 5rem 7%;
    }
    
    nav {
        padding: 1.2rem 7%;
    }
}

@media (max-width: 992px) {
    section {
        padding: 5rem 5%;
    }
    
    nav {
        padding: 1rem 5%;
    }
    
    .hero {
        flex-direction: column;
        text-align: center;
        padding-top: 8rem;
    }
    
    .hero-content {
        max-width: 100%;
        margin-bottom: 3rem;
    }
    
    .hero-btns {
        justify-content: center;
    }
    
    .about-grid {
        grid-template-columns: 1fr;
    }
    
    .about-details {
        grid-template-columns: 1fr 1fr;
    }
    
    .contact-container {
        flex-direction: column;
    }
    
    .contact-info {
        flex: 1;
        width: 100%;
        max-width: 500px;
        margin-top: 2rem;
    }
}

@media (max-width: 768px) {
    h1 {
        font-size: 2.2rem;
    }
    
    h2 {
        font-size: 1.8rem;
    }
    
    .nav-links {
        position: fixed;
        top: 0;
        right: 0;
        width: 280px;
        height: 100vh;
        background: var(--header-bg);
        flex-direction: column;
        align-items: flex-start;
        padding: 100px 40px;
        clip-path: circle(0px at 90% -10%);
        transition: all 0.8s ease-out;
        box-shadow: -10px 0 30px rgba(0, 0, 0, 0.1);
    }
    
    .nav-links.active {
        clip-path: circle(1500px at 90% -10%);
    }
    
    .nav-links li {
        margin: 1.5rem 0;
    }
    
    .nav-links a {
        font-size: 1.2rem;
    }
    
    .burger {
        display: block;
    }
    
    .burger div {
        width: 25px;
        height: 3px;
        background: var(--text-color);
        margin: 5px;
        transition: all 0.3s ease;
    }
    
    .toggle .line1 {
        transform: rotate(-45deg) translate(-5px, 6px);
    }
    
    .toggle .line2 {
        opacity: 0;
    }
    
    .toggle .line3 {
        transform: rotate(45deg) translate(-5px, -6px);
    }

    .hero-image img {
        width: 280px;
        height: 280px;
    }
    
    .about-details {
        grid-template-columns: 1fr;
    }
    
    .floating-icons {
        bottom: 20px;
        right: 20px;
    }
    
    .network-icon {
        width: 45px;
        height: 45px;
        font-size: 1.2rem;
    }
}

@media (max-width: 576px) {
    section {
        padding: 5rem 3%;
    }
    
    .hero-btns {
        flex-direction: column;
        gap: 1rem;
    }
    
    .btn {
        width: 100%;
        text-align: center;
    }
    
    .skills-container,
    .certificates-container {
        grid-template-columns: 1fr;
    }
    
    .hero-image img {
        width: 250px;
        height: 250px;
    }
}