/* ==========================================================================
   CSS STYLING - WEBSITE PORTFOLIO UKM MP POLNEP
   ========================================================================== */

/* 1. Global Reset & Variables */
:root {
    --primary-color: #10173b;
    /* Navy Blue */
    --primary-light: #2c3a7a;
    --text-color: #222222;
    /* Dark Gray */
    --text-muted: #555555;
    --accent-color: #0b5ed7;
    /* Electric Blue */
    --accent-glow: rgba(11, 94, 215, 0.15);
    --font-heading: 'Syne', 'Montserrat', sans-serif;
    --font-body: 'Poppins', sans-serif;
    --transition-smooth: all 0.4s cubic-bezier(0.25, 0.8, 0.25, 1);
    --transition-fast: all 0.2s ease;
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
    overflow-x: hidden;
}

body {
    font-family: var(--font-body);
    color: var(--text-color);
    background-color: #f7f7f7;
    line-height: 1.6;
    overflow-x: hidden;
}

/* Tiled crumpled paper texture background wrapper */
.global-wrapper {
    background-color: #ffffff;
    width: 100%;
    min-height: 100vh;
    position: relative;
}

/* 2. Typographic Hierarchy */
h1,
h2,
h3,
h4 {
    font-family: var(--font-heading);
    font-weight: 800;
    color: var(--primary-color);
}

p {
    font-size: 1.05rem;
    font-weight: 400;
}

a {
    text-decoration: none;
    color: inherit;
    transition: var(--transition-fast);
}

.text-center {
    text-align: center;
}

/* 3. Sticky Navigation Bar */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    z-index: 1000;
    padding: 20px 0;
    transition: var(--transition-smooth);
}

.navbar.scrolled {
    padding: 12px 0;
    background-color: rgba(255, 255, 255, 0.85);
    backdrop-filter: blur(10px);
    box-shadow: 0 4px 30px rgba(0, 0, 0, 0.05);
    border-bottom: 1px solid rgba(0, 0, 0, 0.05);
}

.navbar-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 40px;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.nav-logo-text {
    font-family: var(--font-heading);
    font-size: 1.8rem;
    font-weight: 900;
    letter-spacing: -1px;
    color: var(--primary-color);
}

.nav-links {
    display: flex;
    gap: 30px;
}

.nav-link {
    font-size: 0.95rem;
    font-weight: 500;
    position: relative;
    padding: 5px 0;
    color: var(--primary-color);
}

.nav-link::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 0;
    height: 2px;
    background-color: var(--accent-color);
    transition: var(--transition-smooth);
}

.nav-link:hover {
    color: var(--accent-color);
}

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

.nav-toggle {
    display: none;
    flex-direction: column;
    gap: 5px;
    cursor: pointer;
}

.nav-toggle span {
    width: 25px;
    height: 2px;
    background-color: var(--primary-color);
    transition: var(--transition-smooth);
}

/* 4. Section Structure */
.section {
    padding: 100px 40px;
    max-width: 1200px;
    margin: 0 auto;
    min-height: 90vh;
    display: flex;
    flex-direction: column;
    justify-content: center;
}

.section-title {
    font-size: 3.5rem;
    letter-spacing: -2px;
    line-height: 1;
    margin-bottom: 15px;
    text-transform: uppercase;
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--accent-color) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    color: transparent;
}

.section-subtitle {
    font-size: 1.5rem;
    font-weight: 600;
    color: var(--primary-light);
    margin-bottom: 30px;
}

/* 5. Hero Section */
.hero-section {
    min-height: 100vh;
    justify-content: space-between;
    padding-top: 150px;
    padding-bottom: 50px;
}

.hero-content {
    margin-top: auto;
    margin-bottom: auto;
}

.hero-title {
    font-size: 7rem;
    line-height: 0.85;
    letter-spacing: -5px;
    margin-left: -5px;
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--accent-color) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    color: transparent;
}

.hero-title .dot {
    -webkit-text-fill-color: var(--accent-color);
    color: var(--accent-color);
}

.hero-subtitle {
    font-size: 2.2rem;
    font-weight: 400;
    margin-top: 10px;
    letter-spacing: 2px;
    color: var(--primary-light);
}

.hero-footer {
    display: flex;
    justify-content: flex-start;
    align-items: center;
    border-top: 1px solid rgba(0, 0, 0, 0.1);
    padding-top: 30px;
}

.hero-email {
    font-size: 1.1rem;
    font-weight: 500;
    letter-spacing: 0.5px;
}

.hero-email:hover {
    color: var(--accent-color);
    transform: translateX(5px);
}

.cta-button {
    display: inline-block;
    padding: 12px 30px;
    background-color: var(--accent-color);
    color: white;
    font-weight: 600;
    border-radius: 30px;
    margin-right: 25px;
    box-shadow: 0 10px 20px rgba(11, 94, 215, 0.2);
}

.cta-button:hover {
    background-color: var(--primary-color);
    color: white;
    transform: translateY(-3px);
    box-shadow: 0 15px 25px rgba(16, 23, 59, 0.2);
}

/* 6. About Mp Section */

.about-container {
    display: grid;
    grid-template-columns: 1.1fr 0.8fr;
    gap: 80px;
    align-items: center;
}

.about-description {
    font-size: 1.10rem;
    margin-bottom: 20px;
    color: black;
    text-align: justify;
}

.about-visual {
    display: flex;
    justify-content: center;
}

.logo-wrapper {
    width: 320px;
    height: 320px;
    border-radius: 50%;
    padding: 10px;
    background: radial-gradient(circle, rgba(255, 255, 255, 0.2) 0%, rgba(255, 255, 255, 0) 70%);
}

.rotating-logo {
    width: 100%;
    height: 100%;
    object-fit: contain;
    filter: drop-shadow(0 10px 20px rgba(0, 0, 0, 0.1));
}

/* 7. Image Frames & Aesthetics */
.image-frame {
    position: relative;
    border-radius: 8px;
    overflow: hidden;
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.1);
    border: 8px solid white;
    background-color: white;
}

.image-frame::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    box-shadow: inset 0 0 10px rgba(0, 0, 0, 0.1);
    pointer-events: none;
}

.featured-image {
    width: 100%;
    height: auto;
    display: block;
    object-fit: cover;
    transition: var(--transition-smooth);
}

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

/* 8. Education Section */
.education-container {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 80px;
    align-items: center;
}

.institution-title {
    font-size: 2rem;
    margin-bottom: 20px;
}

.education-description {
    font-size: 1.1rem;
    margin-bottom: 20px;
}

.highlight-box {
    border-left: 4px solid var(--accent-color);
    padding-left: 20px;
    font-style: italic;
}

/* 9. Experience Section */
.experience-section {
    position: relative;
    overflow: hidden;
}

.experience-bg-text {
    position: absolute;
    font-family: var(--font-heading);
    font-size: 11rem;
    font-weight: 900;
    color: rgba(16, 23, 59, 0.03);
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    pointer-events: none;
    z-index: 0;
    text-transform: uppercase;
    letter-spacing: -5px;
    white-space: nowrap;
}

.experience-container {
    position: relative;
    z-index: 1;
}

.experience-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 40px;
    margin-top: 60px;
}

.experience-card {
    background-color: rgba(255, 255, 255, 0.6);
    border: 1px solid rgba(0, 0, 0, 0.05);
    border-radius: 12px;
    padding: 40px;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.02);
    backdrop-filter: blur(5px);
    transition: var(--transition-smooth);
    display: flex;
    flex-direction: column;
}

.experience-card:hover {
    transform: translateY(-10px);
    background-color: rgba(255, 255, 255, 0.95);
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.08);
    border-color: var(--accent-color);
}

.card-number {
    font-family: var(--font-heading);
    font-size: 5rem;
    font-weight: 900;
    color: var(--accent-color);
    line-height: 0.8;
    margin-bottom: 20px;
    opacity: 0.8;
}

.card-content h3 {
    font-size: 1.35rem;
    margin-bottom: 15px;
}

.card-content p {
    font-size: 0.95rem;
    color: var(--text-muted);
    text-align: justify;
}

/* 10. Technical Skill Section */
.skills-container {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 80px;
    align-items: center;
}

.skill-category {
    margin-top: 30px;
}

.skill-category h3 {
    font-size: 1.6rem;
    color: var(--accent-color);
    margin-bottom: 10px;
    text-transform: uppercase;
    letter-spacing: 1px;
}

.skill-category p {
    font-size: 1.05rem;
    color: var(--text-muted);
    margin-bottom: 15px;
}

.member-list {
    list-style: none;
}

.member-list li {
    font-size: 1.1rem;
    padding: 8px 0;
    border-bottom: 1px dashed rgba(0, 0, 0, 0.1);
    display: flex;
    justify-content: space-between;
}

.member-list li .name {
    font-weight: 600;
}

.instagram-handle {
    color: var(--accent-color);
    font-weight: 500;
}

.instagram-handle:hover {
    color: var(--primary-color);
    text-shadow: 0 0 10px var(--accent-glow);
}

/* 11. Portfolio Grid Section */
.portfolio-section {
    max-width: 1300px;
}

.section-intro {
    font-size: 1.2rem;
    color: var(--text-muted);
    margin-top: -10px;
    margin-bottom: 50px;
}

.portfolio-filters {
    display: flex;
    justify-content: center;
    gap: 15px;
    margin-bottom: 40px;
    flex-wrap: wrap;
}

.filter-btn {
    background-color: transparent;
    border: 2px solid var(--primary-light);
    color: var(--primary-color);
    padding: 8px 22px;
    font-size: 0.95rem;
    font-weight: 600;
    border-radius: 30px;
    cursor: pointer;
    transition: var(--transition-smooth);
    font-family: var(--font-body);
}

.filter-btn:hover,
.filter-btn.active {
    background-color: var(--accent-color);
    border-color: var(--accent-color);
    color: white;
    box-shadow: 0 8px 20px rgba(11, 94, 215, 0.2);
}

.portfolio-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    grid-gap: 15px;
}

.portfolio-item {
    position: relative;
    display: block;
    overflow: hidden;
    background-color: black;
    aspect-ratio: 3/2;
    transition: opacity 0.3s ease, transform 0.3s ease;
    opacity: 1;
    transform: scale(1);
}

.portfolio-item.hide-portfolio {
    display: none !important;
}

.portfolio-item.item-circular-crop {
    border-radius: 50%;
    aspect-ratio: 1/1;
    overflow: hidden;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
}

.portfolio-item img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: var(--transition-smooth);
}

.item-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(16, 23, 59, 0.75);
    display: flex;
    justify-content: center;
    align-items: center;
    opacity: 0;
    transition: var(--transition-smooth);
}

.item-overlay span {
    font-family: var(--font-heading);
    color: white;
    font-size: 1.1rem;
    text-transform: uppercase;
    font-weight: 700;
    letter-spacing: 1px;
    transform: translateY(20px);
    transition: var(--transition-smooth);
}

.portfolio-item:hover img {
    transform: scale(1.08);
}

.portfolio-item:hover .item-overlay {
    opacity: 1;
}

.portfolio-item:hover .item-overlay span {
    transform: translateY(0);
}

/* Portfolio Pagination */
.portfolio-pagination {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 10px;
    margin-top: 50px;
}

.pagination-btn {
    display: inline-flex;
    justify-content: center;
    align-items: center;
    width: 40px;
    height: 40px;
    border: 1px solid #ccc;
    background-color: white;
    color: var(--primary-color);
    font-weight: 500;
    font-size: 0.95rem;
    cursor: pointer;
    transition: var(--transition-smooth);
    border-radius: 4px;
    font-family: var(--font-body);
}

.pagination-btn:hover {
    border-color: var(--accent-color);
    color: var(--accent-color);
}

.pagination-btn.active {
    border-color: var(--primary-color);
    color: var(--primary-color);
    font-weight: 700;
    cursor: default;
    border-width: 2px;
}

.pagination-btn.next-btn {
    width: auto;
    padding: 0 18px;
    color: #0b5ed7;
}

.pagination-btn.next-btn:hover {
    border-color: var(--accent-color);
    background-color: var(--accent-glow);
}

.pagination-btn.disabled {
    opacity: 0.5;
    pointer-events: none;
}

/* 12. Contact Section */
.contact-section {
    min-height: 80vh;
}

.contact-container {
    display: grid;
    grid-template-columns: 0.8fr 1.2fr;
    gap: 80px;
    align-items: center;
}

.contact-info {
    padding-left: 20px;
}

.contact-links {
    margin-top: 40px;
    display: flex;
    flex-direction: column;
    gap: 30px;
}

.contact-item {
    display: flex;
    flex-direction: column;
    border-bottom: 1px solid rgba(0, 0, 0, 0.1);
    padding-bottom: 15px;
}

.contact-label {
    font-size: 0.85rem;
    text-transform: uppercase;
    letter-spacing: 2px;
    color: var(--text-muted);
    margin-bottom: 5px;
}

.contact-value {
    font-family: var(--font-heading);
    font-size: 1.0rem;
    font-weight: 800;
    color: var(--primary-color);
    word-break: break-all;
    line-height: 1.1;
}

.contact-value:hover {
    color: var(--accent-color);
    transform: translateX(10px);
}

/* 13. Footer (Thank You) */
.footer-section {
    padding: 100px 40px;
    max-width: 1200px;
    margin: 0 auto;
    border-top: 1px solid rgba(0, 0, 0, 0.05);
}

.footer-container {
    display: grid;
    grid-template-columns: 1.2fr 0.8fr;
    gap: 80px;
    align-items: center;
}

.thankyou-title {
    font-size: 6rem;
    line-height: 0.9;
    letter-spacing: -4px;
    text-transform: uppercase;
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--accent-color) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    color: transparent;
}

.thankyou-subtitle {
    font-size: 1.8rem;
    font-weight: 400;
    letter-spacing: 2px;
    color: var(--primary-light);
    margin-top: 10px;
}

.footer-visual {
    display: flex;
    justify-content: flex-end;
}

.footer-image {
    max-width: 100%;
    height: 400px;
    object-fit: cover;
    border-radius: 8px;
    box-shadow: 0 15px 30px rgba(0, 0, 0, 0.08);
}

/* Container utama item portofolio */
.portfolio-item {
    position: relative;
    display: block;
    overflow: hidden;
    /* PENTING: Mencegah gambar keluar batas saat di-zoom */
    border-radius: 8px;
    /* Memberikan sudut membulat yang modern (opsional) */
    box-shadow: 0 4px 10px rgba(0, 0, 0, 0.1);
    /* Bayangan lembut */
}

/* Styling gambar dasar */
.portfolio-img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    display: block;
    transition: transform 0.5s ease;
    /* Transisi halus selama 0.5 detik */
}

/* Efek Zoom-in pada gambar saat kursor diarahkan (hover) */
.portfolio-item:hover .portfolio-img {
    transform: scale(1.1);
}

/* Styling ruang untuk teks (Overlay) */
.portfolio-overlay {
    position: absolute;
    bottom: 0;
    left: 0;
    width: 100%;
    /* Gradien hitam dari bawah ke atas agar teks putih mudah terbaca */
    background: linear-gradient(to top, rgba(0, 0, 0, 0.85) 0%, rgba(0, 0, 0, 0) 100%);
    padding: 30px 20px 20px 20px;

    /* State awal sebelum di-hover: Tak terlihat dan agak turun */
    opacity: 0;
    transform: translateY(20px);
    transition: opacity 0.4s ease, transform 0.4s ease;
}

/* Munculkan dan naikkan teks overlay saat di-hover */
.portfolio-item:hover .portfolio-overlay {
    opacity: 1;
    transform: translateY(0);
}

/* Styling tipografi teks portofolio */
.portfolio-overlay span {
    color: #ffffff;
    font-size: 1.1rem;
    font-weight: 600;
    letter-spacing: 0.5px;
    display: block;
}

/* 14. Responsive Layouts (Mobile Navigation & Stacked Grid) */
@media (max-width: 1024px) {
    .section-title {
        font-size: 2.8rem;
    }

    .hero-title {
        font-size: 4.5rem;
    }

    .about-container,
    .education-container,
    .skills-container,
    .contact-container,
    .footer-container {
        grid-template-columns: 1fr;
        gap: 50px;
    }

    .about-visual,
    .footer-visual {
        justify-content: center;
    }

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

    .portfolio-grid .portfolio-item.portfolio-item-wide,
    .portfolio-grid .portfolio-item.portfolio-item-large {
        grid-column: span 1;
        grid-row: span 1;
        aspect-ratio: 4/5;
        height: auto;
    }

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

/* KHUSUS UNTUK HP & LAYAR SENTUH  */
@media (hover: none) {

    /* Munculkan teks judul secara permanen */
    .portfolio-overlay {
        opacity: 1;
        transform: translateY(0);
        /* Sedikit menipiskan warna hitamnya agar foto tetap dominan */
        background: linear-gradient(to top, rgba(0, 0, 0, 0.7) 0%, rgba(0, 0, 0, 0) 100%);
    }

    /* Opsi: Tambahkan efek mengecil sedikit (klik) saat foto disentuh */
    .portfolio-item:active .portfolio-img {
        transform: scale(0.98);
        transition: transform 0.2s ease;
    }
}

@media (max-width: 768px) {
    .navbar {
        padding: 12px 0;
    }

    .navbar-container {
        padding: 0 20px;
    }

    .nav-links {
        position: fixed;
        top: 0;
        right: -100%;
        width: 60%;
        height: 100vh;
        background-color: rgba(255, 255, 255, 0.98);
        backdrop-filter: blur(10px);
        flex-direction: column;
        justify-content: center;
        align-items: center;
        gap: 25px;
        box-shadow: -10px 0 30px rgba(0, 0, 0, 0.05);
        transition: var(--transition-smooth);
        z-index: 999;
    }

    .nav-links.active {
        right: 0;
    }

    .nav-toggle {
        display: flex;
        z-index: 1000;
    }

    .nav-toggle.active span:nth-child(1) {
        transform: translateY(7px) rotate(45deg);
    }

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

    .nav-toggle.active span:nth-child(3) {
        transform: translateY(-7px) rotate(-45deg);
    }

    .hero-title {
        font-size: 2.0rem;
        letter-spacing: -2px;
    }

    .hero-subtitle {
        font-size: 2.0rem;
    }

    .section {
        padding: 60px 20px;
    }

    .section-title {
        font-size: 2.0rem;
    }

    .institution-title {
        font-size: 2.0rem;
    }

    .contact-value {
        font-size: 0.85rem;
    }

    .thankyou-title {
        font-size: 2.0rem;
    }

    .experience-bg-text {
        font-size: 4rem;
    }

    .card-number {
        font-size: 3.5rem;
    }
}