/* Reset and Global Styles */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: 'Poppins', sans-serif;
    background-color: #0F172A;
    color: #E2E8F0;
    line-height: 1.6;
    overflow-x: hidden;
}

/* === HEADER DAN NAV === */
header {
    background-color: rgba(15, 23, 42, 0.95);
    backdrop-filter: blur(10px);
    padding: 15px 0;
    position: fixed;
    width: 100%;
    top: 0;
    z-index: 1000;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.5);
    transition: all 0.3s ease;
    border-bottom: 1px solid rgba(255, 255, 255, 0.05);
}

header.scrolled {
    padding: 10px 0;
    box-shadow: 0 6px 30px rgba(0, 0, 0, 0.7);
}

nav {
    max-width: 1200px;
    margin: 0 auto;
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 0 30px;
}

/* === Logo dengan Gambar === */
.logo {
    display: flex;
    align-items: center;
    text-decoration: none;
    transition: transform 0.3s ease;
    max-width: 180px;
}

.logo:hover {
    transform: scale(1.05);
}

.logo-img {
    height: 45px;
    width: auto;
    max-width: 100%;
    max-height: 45px;
    object-fit: contain;
    display: block;
    filter: drop-shadow(0 0 10px rgba(34, 211, 238, 0.3));
    transition: filter 0.3s ease;
}

.logo:hover .logo-img {
    filter: drop-shadow(0 0 15px rgba(34, 211, 238, 0.5));
}


/* Menu kanan */
nav ul {
    display: flex;
    list-style: none;
    margin: 0;
    padding: 0;
    gap: 15px;
}

nav ul li {
    position: relative;
}

nav ul li a {
    color: #CBD5E1;
    text-decoration: none;
    font-size: 17px;
    padding: 8px 16px;
    border-radius: 8px;
    transition: all 0.3s ease;
    position: relative;
    display: block;
}

nav ul li a::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 50%;
    transform: translateX(-50%);
    width: 0;
    height: 2px;
    background: #22D3EE;
    transition: width 0.3s ease;
}

nav ul li a:hover,
nav ul li a.active {
    color: #22D3EE;
    background-color: rgba(34, 211, 238, 0.1);
}

nav ul li a:hover::after,
nav ul li a.active::after {
    width: 80%;
}

/* Toggle button (hamburger) */
.menu-toggle {
    display: none;
    font-size: 28px;
    color: #CBD5E1;
    cursor: pointer;
    background: none;
    border: none;
    padding: 5px 10px;
    transition: transform 0.3s ease;
}

.menu-toggle:hover {
    transform: rotate(90deg);
    color: #22D3EE;
}

/* === HOME SECTION WITH PHOTO === */
#home {
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    min-height: 100vh;
    background: linear-gradient(180deg, #0F172A 0%, #1E293B 100%);
    color: #fff;
    text-align: center;
    padding: 120px 30px 80px;
    position: relative;
    overflow: hidden;
}

#home::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: radial-gradient(circle at 50% 30%, rgba(34, 211, 238, 0.15) 0%, transparent 60%);
    pointer-events: none;
}

.hero-content {
    display: flex;
    flex-direction: column;
    align-items: center;
    max-width: 800px;
    z-index: 2;
}

/* Profile Photo in Hero */
.profile-photo-container {
    margin-bottom: 30px;
    animation: fadeInUp 0.8s ease;
}

.hero-profile-photo {
    width: 200px;
    height: 200px;
    border-radius: 50%;
    object-fit: cover;
    border: 4px solid #22D3EE;
    box-shadow: 0 15px 50px rgba(34, 211, 238, 0.3), 0 0 80px rgba(34, 211, 238, 0.2);
    transition: transform 0.4s ease, box-shadow 0.4s ease;
    animation: float 3s ease-in-out infinite;
}

.hero-profile-photo:hover {
    transform: scale(1.08);
    box-shadow: 0 20px 60px rgba(34, 211, 238, 0.4), 0 0 100px rgba(34, 211, 238, 0.3);
}

@keyframes float {
    0%, 100% { transform: translateY(0px); }
    50% { transform: translateY(-10px); }
}

@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

#home h1 {
    font-size: clamp(2.5rem, 8vw, 4rem);
    margin-bottom: 15px;
    letter-spacing: 2px;
    animation: fadeInUp 1s ease;
    text-shadow: 0 0 40px rgba(34, 211, 238, 0.3);
    background: linear-gradient(135deg, #fff 0%, #22D3EE 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.tagline {
    font-size: clamp(1.2rem, 3vw, 1.6rem);
    font-weight: 600;
    margin-bottom: 10px;
    animation: fadeInUp 1.2s ease;
    color: #CBD5E1;
}

.welcome-text {
    font-size: clamp(1rem, 3vw, 1.2rem);
    margin-bottom: 30px;
    animation: fadeInUp 1.4s ease;
    color: #94A3B8;
}

/* === CV BUTTON === */
.cv-button {
    display: inline-block;
    background: linear-gradient(135deg, #22D3EE 0%, #0EA5E9 100%);
    color: #0F172A;
    padding: 14px 40px;
    text-decoration: none;
    border-radius: 50px;
    font-size: 1.1rem;
    font-weight: 600;
    transition: all 0.3s ease;
    box-shadow: 0 5px 20px rgba(34, 211, 238, 0.4);
    animation: fadeInUp 1.6s ease;
}

.cv-button:hover {
    background: linear-gradient(135deg, #0EA5E9 0%, #22D3EE 100%);
    transform: translateY(-3px);
    box-shadow: 0 8px 30px rgba(34, 211, 238, 0.6);
}

.cv-button:active {
    transform: translateY(-1px);
}

/* Scroll indicator */
.scroll-indicator {
    position: absolute;
    bottom: 30px;
    left: 50%;
    transform: translateX(-50%);
    animation: bounce 2s infinite;
    cursor: pointer;
}

.scroll-indicator::before {
    content: '↓';
    font-size: 30px;
    color: #22D3EE;
    opacity: 0.7;
}

@keyframes bounce {
    0%, 20%, 50%, 80%, 100% { transform: translateX(-50%) translateY(0); }
    40% { transform: translateX(-50%) translateY(-10px); }
    60% { transform: translateX(-50%) translateY(-5px); }
}

/* === ABOUT SECTION - TEXT ONLY === */
#about {
    padding: 100px 30px;
    background: linear-gradient(180deg, #1E293B 0%, #0F172A 100%);
    min-height: 100vh;
    color: #E2E8F0;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    position: relative;
}

.about-content {
    max-width: 900px;
    text-align: left;
    z-index: 2;
}

#about h2 {
    font-size: clamp(2rem, 5vw, 3rem);
    margin-bottom: 30px;
    color: #22D3EE;
    text-align: center;
}

.about-intro {
    font-size: clamp(1.1rem, 3vw, 1.4rem);
    font-weight: 500;
    line-height: 1.8;
    margin-bottom: 25px;
    color: #CBD5E1;
}

.about-description {
    font-size: clamp(1rem, 3vw, 1.2rem);
    line-height: 1.8;
    margin-bottom: 35px;
    color: #94A3B8;
}

.skills-list {
    background: linear-gradient(135deg, rgba(30, 41, 59, 0.6) 0%, rgba(15, 23, 42, 0.6) 100%);
    padding: 30px;
    border-radius: 16px;
    backdrop-filter: blur(10px);
    border: 1px solid rgba(34, 211, 238, 0.2);
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.3);
}

.skills-list h3 {
    font-size: clamp(1.3rem, 4vw, 1.8rem);
    margin-bottom: 20px;
    color: #22D3EE;
}

.skills-list ul {
    list-style: none;
    padding: 0;
}

.skills-list li {
    font-size: clamp(1rem, 3vw, 1.15rem);
    line-height: 2;
    color: #CBD5E1;
    padding: 8px 0;
    border-bottom: 1px solid rgba(148, 163, 184, 0.1);
}

.skills-list li:last-child {
    border-bottom: none;
}

.skills-list li strong {
    color: #22D3EE;
    font-weight: 600;
}

/* === PROJECTS SECTION === */
#projects {
    background: linear-gradient(180deg, #0F172A 0%, #1E293B 100%);
    padding: 100px 30px;
    text-align: center;
    color: #E2E8F0;
    min-height: 100vh;
}

#projects h2 {
    font-size: clamp(1.8rem, 5vw, 2.5rem);
    margin-bottom: 60px;
    color: #22D3EE;
}

.projects-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 30px;
    max-width: 1200px;
    margin: 0 auto;
}

.project-item {
    background: linear-gradient(135deg, rgba(30, 41, 59, 0.8) 0%, rgba(15, 23, 42, 0.8) 100%);
    padding: 25px;
    border-radius: 16px;
    box-shadow: 0 8px 20px rgba(0, 0, 0, 0.4);
    border: 1px solid rgba(34, 211, 238, 0.1);
    transition: transform 0.4s ease, box-shadow 0.4s ease, border-color 0.4s ease;
    overflow: hidden;
    position: relative;
}

.project-item::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 3px;
    background: linear-gradient(90deg, #22D3EE, #0EA5E9);
    transform: scaleX(0);
    transition: transform 0.4s ease;
}

.project-item:hover::before {
    transform: scaleX(1);
}

.project-item:hover {
    transform: translateY(-15px);
    box-shadow: 0 15px 40px rgba(34, 211, 238, 0.3);
    border-color: rgba(34, 211, 238, 0.3);
}

.project-item img {
    width: 100%;
    height: 200px;
    object-fit: cover;
    border-radius: 12px;
    margin-bottom: 15px;
    transition: transform 0.4s ease;
}

.project-item:hover img {
    transform: scale(1.05);
}

.project-item h3 {
    font-size: 1.3rem;
    color: #22D3EE;
    margin-bottom: 10px;
}

.project-item p {
    font-size: 1rem;
    color: #94A3B8;
    line-height: 1.6;
    margin-bottom: 15px;
}

/* Drive button container */
.drive-button-container {
    margin-top: 40px;
    text-align: center;
}

.drive-button {
    display: inline-block;
    background: linear-gradient(135deg, #22D3EE 0%, #0EA5E9 100%);
    color: #0F172A;
    padding: 14px 40px;
    text-decoration: none;
    border-radius: 50px;
    font-size: 1.1rem;
    font-weight: 600;
    transition: all 0.3s ease;
    box-shadow: 0 5px 15px rgba(34, 211, 238, 0.4);
}

.drive-button:hover {
    background: linear-gradient(135deg, #0EA5E9 0%, #22D3EE 100%);
    transform: translateY(-3px);
    box-shadow: 0 8px 25px rgba(34, 211, 238, 0.6);
}

/* === CONTACT SECTION === */
#contact {
    background: linear-gradient(180deg, #1E293B 0%, #0F172A 100%);
    color: #E2E8F0;
    padding: 100px 30px;
    text-align: center;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    justify-content: center;
}

#contact h2 {
    font-size: clamp(2rem, 5vw, 3rem);
    margin-bottom: 20px;
    color: #22D3EE;
}

.contact-subtitle {
    font-size: clamp(1rem, 3vw, 1.2rem);
    margin-bottom: 50px;
    color: #94A3B8;
}

.contact-buttons {
    display: flex;
    justify-content: center;
    flex-wrap: wrap;
    gap: 30px;
    margin-top: 40px;
}

.contact-icon {
    background: linear-gradient(135deg, rgba(30, 41, 59, 0.8) 0%, rgba(15, 23, 42, 0.8) 100%);
    padding: 30px;
    border-radius: 20px;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.4);
    border: 1px solid rgba(34, 211, 238, 0.2);
    transition: transform 0.4s ease, box-shadow 0.4s ease, border-color 0.4s ease;
    position: relative;
    overflow: hidden;
}

.contact-icon::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(34, 211, 238, 0.2), transparent);
    transition: left 0.5s ease;
}

.contact-icon:hover::before {
    left: 100%;
}

.contact-icon:hover {
    transform: translateY(-12px);
    box-shadow: 0 15px 40px rgba(34, 211, 238, 0.4);
    border-color: rgba(34, 211, 238, 0.4);
}

.contact-icon img {
    width: 70px;
    height: 70px;
    transition: transform 0.3s ease;
    filter: brightness(1.2);
}

.contact-icon:hover img {
    transform: scale(1.1);
}

/* === FOOTER === */
footer {
    background-color: #0B1120;
    color: #64748B;
    padding: 30px 20px;
    text-align: center;
    font-size: 0.95rem;
    border-top: 1px solid rgba(255, 255, 255, 0.05);
}

footer p {
    margin: 0;
}

/* === RESPONSIVE STYLES === */
@media (max-width: 768px) {
    .menu-toggle {
        display: block;
    }

    nav {
        padding: 0 20px;
    }

    nav ul {
        display: none;
        flex-direction: column;
        width: 100%;
        background-color: rgba(15, 23, 42, 0.98);
        position: absolute;
        top: 60px;
        left: 0;
        padding: 20px 0;
        box-shadow: 0 8px 20px rgba(0, 0, 0, 0.5);
        gap: 0;
        border-bottom: 1px solid rgba(34, 211, 238, 0.2);
    }

    nav ul.show {
        display: flex;
    }

    nav ul li {
        margin: 0;
        text-align: center;
        border-bottom: 1px solid rgba(255, 255, 255, 0.05);
    }

    nav ul li:last-child {
        border-bottom: none;
    }

    nav ul li a {
        padding: 15px 20px;
        width: 100%;
        border-radius: 0;
    }

    #home {
        padding: 100px 20px 50px;
    }

    .hero-profile-photo {
        width: 160px;
        height: 160px;
        border-width: 3px;
    }

    .about-content {
        text-align: left;
    }

    .skills-list {
        padding: 20px;
    }

    .skills-list li {
        line-height: 1.8;
    }

    .projects-grid {
        grid-template-columns: 1fr;
        gap: 25px;
    }

    .contact-buttons {
        gap: 20px;
    }

    .contact-icon {
        padding: 25px;
    }

    .contact-icon img {
        width: 60px;
        height: 60px;
    }
}

@media (max-width: 480px) {
    .logo {
        font-size: 22px;
    }

    .hero-profile-photo {
        width: 140px;
        height: 140px;
    }

    #home {
        padding: 100px 20px 60px;
    }

    #about {
        padding: 80px 20px;
    }

    .skills-list {
        padding: 15px;
    }

    .cv-button,
    .drive-button {
        padding: 12px 30px;
        font-size: 1rem;
    }

    .project-item {
        padding: 20px;
    }

    .contact-icon {
        padding: 20px;
        min-width: 120px;
    }
}

/* Loading Animation */
.fade-in {
    animation: fadeIn 0.6s ease;
}

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

/* Accessibility Improvements */
*:focus {
    outline: 2px solid #22D3EE;
    outline-offset: 2px;
}

button, a {
    min-height: 44px;
    min-width: 44px;
}