/* ===== RESET & BASE ===== */
*,
*::before,
*::after {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

:root {
    --bg-main: #0a192f;
    --bg-secondary: #112240;
    --bg-card: #112240;
    --bg-card-hover: #1d3461;
    --border: #233554;
    --text: #8892b0;
    --text-muted: #6a7394;
    --text-bright: #ccd6f6;
    --accent: #64ffda;
    --accent-dark: #4ad8b5;
    --shadow: 0 16px 60px rgba(0, 0, 0, 0.5);
    --shadow-light: 0 4px 20px rgba(0, 0, 0, 0.25);
    --transition: 0.3s ease;
    --radius: 20px;
    --radius-sm: 14px;
    --radius-xs: 8px;
}

html {
    scroll-behavior: smooth;
    font-size: 16px;
}

body {
    font-family: 'Poppins', -apple-system, BlinkMacSystemFont, sans-serif;
    background-color: var(--bg-main);
    background-image:
        radial-gradient(circle at 20% 20%, rgba(100, 255, 218, 0.03) 0%, transparent 50%),
        radial-gradient(circle at 80% 80%, rgba(100, 255, 218, 0.02) 0%, transparent 50%);
    color: var(--text);
    line-height: 1.7;
    overflow-x: clip; /* Fix for mobile horizontal scroll */
    padding: 15px 12px;
    min-height: 100vh;
}

a {
    color: var(--accent);
    text-decoration: none;
    transition: color var(--transition);
}
a:hover {
    color: var(--accent-dark);
}

img {
    max-width: 100%;
    display: block;
}

ul, ol {
    list-style: none;
}

address {
    font-style: normal;
}

/* ===== LAYOUT ===== */
body {
    display: flex;
    justify-content: center;
    align-items: flex-start;
    gap: 25px;
    max-width: 1200px;
    margin: 0 auto;
}

/* ===== SIDEBAR ===== */
.sidebar {
    position: sticky;
    top: 15px;
    max-height: calc(100vh - 30px);
    overflow-y: auto;
    width: 280px;
    min-width: 280px;
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 30px;
    box-shadow: var(--shadow);
    z-index: 10;
    transition: border-color 0.4s ease, box-shadow 0.4s ease;
}

.sidebar:hover {
    border-color: rgba(100, 255, 218, 0.25);
    box-shadow: 0 16px 60px rgba(0, 0, 0, 0.5), 0 0 30px rgba(100, 255, 218, 0.06);
}

.sidebar-info {
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: center;
    gap: 15px;
}

.avatar-box {
    width: 150px;
    height: 150px;
    border-radius: 20px;
    overflow: hidden;
    background: #0f0c0c;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0;
    position: relative;
    box-shadow: inset 0 0 560px rgba(0,0,0,0.4);
    transform-style: preserve-3d;
    will-change: transform;
}

.avatar-box img {
    width: 85%;
    height: 100%;
    object-fit: cover;
    border-radius: 20px;
}

.avatar-overlay {
    position: absolute;
    inset: 0;
    background: rgba(0,0,0,0.5);
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    transition: opacity var(--transition);
    border-radius: 20px;
}

.avatar-box:hover .avatar-overlay {
    opacity: 1;
}

.avatar-placeholder {
    display: none;
    font-size: 2.5rem;
    font-weight: 700;
    color: var(--accent);
}

.avatar-box.placeholder .avatar-placeholder {
    display: flex;
}

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

.name {
    font-size: 1.3rem;
    font-weight: 700;
    color: var(--text-bright);
    white-space: nowrap;
    margin-bottom: 4px;
}

.sidebar .title {
    background: var(--bg-main);
    color: var(--text-muted);
    font-size: 0.75rem;
    font-weight: 500;
    padding: 4px 12px;
    border-radius: 8px;
    display: inline-block;
}

.resume-btn {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 8px 20px;
    background: var(--accent);
    color: var(--bg-main) !important;
    border-radius: var(--radius-xs);
    font-family: inherit;
    font-size: 0.82rem;
    font-weight: 600;
    cursor: pointer;
    transition: all var(--transition);
    margin-top: 8px;
    text-decoration: none;
    animation: pulseGlow 2s infinite;
}

.resume-btn:hover {
    background: #5cffd2;
    color: var(--bg-main) !important;
    transform: translateY(-3px) scale(1.03);
    box-shadow: 0 6px 20px rgba(100, 255, 218, 0.5);
    animation: none;
}

.resume-btn:hover svg {
    transform: translateY(3px);
    transition: transform 0.3s ease;
}

.resume-btn svg {
    fill: var(--bg-main);
    transition: transform 0.3s ease;
}

.info-more-btn {
    display: flex;
    align-items: center;
    gap: 6px;
    padding: 8px 16px;
    border: 1px solid var(--border);
    border-radius: var(--radius-xs);
    background: var(--bg-main);
    color: var(--accent);
    font-family: inherit;
    font-size: 0.8rem;
    font-weight: 500;
    cursor: pointer;
    transition: all var(--transition);
    margin-top: 5px;
}

.info-more-btn:hover {
    background: var(--bg-card-hover);
}

.info-more-btn .chevron-down {
    transition: transform var(--transition);
    color: var(--accent);
}

.info-more-btn.active .chevron-down {
    transform: rotate(180deg);
}

/* Sidebar info more (contacts) */
.sidebar-info-more {
    max-height: 0;
    overflow: hidden;
    opacity: 0;
    transition: max-height 0.4s ease, opacity 0.3s ease, margin 0.3s ease;
    margin-top: 0;
}

.sidebar-info-more.active {
    max-height: 500px;
    opacity: 1;
    margin-top: 16px;
}

.separator {
    height: 1px;
    background: var(--border);
    margin: 16px 0;
}

.contacts-list {
    display: flex;
    flex-direction: column;
    gap: 16px;
}

.contact-item {
    display: flex;
    align-items: center;
    gap: 12px;
}

.icon-box {
    width: 36px;
    height: 36px;
    min-width: 36px;
    border-radius: 10px;
    background: var(--bg-main);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--accent);
}

.contact-info {
    text-align: left;
}

.contact-title {
    font-size: 0.7rem;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 0.5px;
    margin-bottom: 2px;
}

.contact-link {
    font-size: 0.82rem;
    color: var(--text) !important;
    font-weight: 400;
    word-break: break-all;
}

.contact-link:hover {
    color: var(--accent) !important;
}

.contact-info address {
    font-size: 0.82rem;
    color: var(--text);
}

/* Social links */
.social-list {
    display: flex;
    justify-content: center;
    gap: 10px;
    padding-top: 4px;
}

.social-link {
    width: 35px;
    height: 35px;
    border-radius: 10px;
    background: var(--bg-main);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--text-muted) !important;
    transition: all var(--transition);
    border: 1px solid var(--border);
}

.social-link:hover {
    color: var(--accent) !important;
    border-color: var(--accent);
}

/* ===== MAIN CONTENT ===== */
.main-content {
    flex: 1;
    min-width: 0;
    max-width: 800px;
}

/* ===== NAVBAR ===== */
.navbar {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
    padding: 6px 8px;
    margin-bottom: 20px;
    box-shadow: var(--shadow-light);
    position: sticky;
    top: 15px;
    z-index: 5;
    backdrop-filter: blur(10px);
}

.navbar-list {
    display: flex;
    justify-content: center;
    gap: 4px;
}

.navbar-link {
    font-family: inherit;
    font-size: 0.85rem;
    font-weight: 500;
    color: var(--text-muted);
    background: transparent;
    border: none;
    padding: 10px 20px;
    border-radius: var(--radius-xs);
    cursor: pointer;
    transition: all var(--transition);
}

.navbar-link:hover {
    color: var(--text-bright);
    background: rgba(100, 255, 218, 0.08);
}

.navbar-link.active {
    color: var(--accent);
    background: rgba(100, 255, 218, 0.12);
}

/* ===== PAGE ARTICLES ===== */
/* ===== CUSTOM ANIMATIONS & UPGRADES ===== */
@keyframes fadeSlideUp {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes pulseGlow {
    0% { box-shadow: 0 0 0 0 rgba(100, 255, 218, 0.4); }
    70% { box-shadow: 0 0 0 10px rgba(100, 255, 218, 0); }
    100% { box-shadow: 0 0 0 0 rgba(100, 255, 218, 0); }
}

@keyframes popIn {
    0% { opacity: 0; transform: scale(0.8) translateY(10px); }
    100% { opacity: 1; transform: scale(1) translateY(0); }
}

.page {
    display: none;
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 30px;
    box-shadow: var(--shadow);
}

.page.active {
    display: block;
    animation: fadeSlideUp 0.6s cubic-bezier(0.2, 0.8, 0.2, 1) forwards;
}

/* ===== TYPOGRAPHY ===== */
.h2 {
    font-size: 1.6rem;
    font-weight: 700;
    color: var(--text-bright);
}

.h3 {
    font-size: 1.15rem;
    font-weight: 600;
    color: var(--text-bright);
}

.h4 {
    font-size: 1rem;
    font-weight: 600;
    color: var(--text-bright);
}

.h5 {
    font-size: 0.9rem;
    font-weight: 600;
    color: var(--text-bright);
}

.article-title {
    position: relative;
    padding-bottom: 12px;
    margin-bottom: 25px;
}

.article-title::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 40px;
    height: 3px;
    background: var(--accent);
    border-radius: 3px;
}

/* ===== ABOUT PAGE ===== */
.about-text {
    margin-bottom: 30px;
}

.about-text p {
    font-size: 0.92rem;
    color: var(--text);
    margin-bottom: 14px;
    line-height: 1.8;
}

/* Service / Achievements */
.service {
    margin-bottom: 30px;
}

.service-title {
    margin-bottom: 20px;
    position: relative;
    padding-bottom: 10px;
}

.service-title::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 30px;
    height: 2px;
    background: var(--accent);
    border-radius: 2px;
}

.service-list {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 16px;
}

.service-item {
    background: var(--bg-main);
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
    padding: 20px;
    text-align: center;
    transition: all var(--transition);
}

.service-item:hover {
    border-color: var(--accent);
    transform: translateY(-3px);
    box-shadow: var(--shadow-light);
}

.service-content-box {
    text-align: center;
}

.service-item-title {
    font-size: 1.8rem;
    font-weight: 700;
    color: var(--accent);
    margin-bottom: 4px;
}

.service-item-text {
    font-size: 0.8rem;
    color: var(--text-muted);
    font-weight: 500;
}

/* "What I'm Doing" cards */
.doing-list {
    grid-template-columns: 1fr;
    gap: 16px;
}

.doing-item {
    display: flex;
    align-items: flex-start;
    gap: 16px;
    text-align: left;
    padding: 20px;
}

.service-icon-box {
    min-width: 50px;
    width: 50px;
    height: 50px;
    border-radius: 12px;
    background: rgba(100, 255, 218, 0.08);
    display: flex;
    align-items: center;
    justify-content: center;
}

.doing-item .service-content-box {
    text-align: left;
}

.doing-item .service-item-title {
    font-size: 1rem;
    color: var(--text-bright);
    margin-bottom: 6px;
}

.doing-item .service-item-text {
    font-size: 0.85rem;
    line-height: 1.6;
}

/* ===== RESUME PAGE ===== */
.timeline-section {
    margin-bottom: 30px;
}

.title-wrapper {
    display: flex;
    align-items: center;
    gap: 12px;
    margin-bottom: 20px;
}

.title-wrapper .icon-box {
    color: var(--accent);
}

.timeline-list {
    border-left: 2px solid var(--border);
    margin-left: 8px;
    padding-left: 25px;
}

.timeline-item {
    position: relative;
    padding-bottom: 25px;
}

.timeline-item:last-child {
    padding-bottom: 0;
}

.timeline-item::before {
    content: '';
    position: absolute;
    left: -31px;
    top: 5px;
    width: 12px;
    height: 12px;
    border-radius: 50%;
    background: var(--accent);
    border: 3px solid var(--bg-card);
}

.timeline-item-title {
    margin-bottom: 4px;
}

.timeline-item span {
    font-size: 0.78rem;
    color: var(--accent);
    font-weight: 500;
    display: block;
    margin-bottom: 8px;
}

.timeline-text {
    font-size: 0.87rem;
    color: var(--text-muted);
    line-height: 1.7;
}

/* Skills section */
.skill-section {
    margin-bottom: 30px;
}

.skill-section .h3 {
    margin-bottom: 20px;
    position: relative;
    padding-bottom: 10px;
}

.skill-section .h3::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 30px;
    height: 2px;
    background: var(--accent);
    border-radius: 2px;
}

.skills-list {
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.skills-item .title-wrapper {
    margin-bottom: 10px;
}

.skill-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
}

.skill-tag {
    background: rgba(100, 255, 218, 0.1);
    color: var(--accent);
    padding: 6px 14px;
    border-radius: 20px;
    font-size: 0.8rem;
    font-weight: 500;
    border: 1px solid rgba(100, 255, 218, 0.2);
    transition: all var(--transition);
    opacity: 0;
    animation: popIn 0.5s cubic-bezier(0.175, 0.885, 0.32, 1.275) forwards;
}

/* Stagger skill tags automatically without JS */
.skill-tags .skill-tag:nth-child(1) { animation-delay: 0.1s; }
.skill-tags .skill-tag:nth-child(2) { animation-delay: 0.2s; }
.skill-tags .skill-tag:nth-child(3) { animation-delay: 0.3s; }
.skill-tags .skill-tag:nth-child(4) { animation-delay: 0.4s; }
.skill-tags .skill-tag:nth-child(5) { animation-delay: 0.5s; }
.skill-tags .skill-tag:nth-child(6) { animation-delay: 0.6s; }
.skill-tags .skill-tag:nth-child(n+7) { animation-delay: 0.7s; }

.skill-tag:hover {
    background: rgba(100, 255, 218, 0.2);
    border-color: var(--accent);
    transform: translateY(-4px) scale(1.05); /* more dynamic hover */
    box-shadow: 0 4px 10px rgba(100, 255, 218, 0.2);
}

/* ===== FILTER TABS ===== */
.filter-list {
    display: flex;
    gap: 14px;
    margin-bottom: 25px;
}

.filter-btn {
    font-family: inherit;
    font-size: 0.85rem;
    font-weight: 500;
    color: var(--text-muted);
    background: transparent;
    border: none;
    cursor: pointer;
    padding: 4px 0;
    position: relative;
    transition: color var(--transition);
}

.filter-btn::after {
    content: '';
    position: absolute;
    bottom: -2px;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--accent);
    border-radius: 2px;
    transition: width var(--transition);
}

.filter-btn:hover {
    color: var(--text-bright);
}

.filter-btn.active {
    color: var(--accent);
}

.filter-btn.active::after {
    width: 100%;
}

/* ===== PORTFOLIO PAGE ===== */
.project-list {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
    gap: 22px;
}

.project-item {
    background: var(--bg-main);
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
    overflow: hidden;
    transition: all var(--transition);
}

.project-item:hover {
    border-color: var(--accent);
    transform: translateY(-4px);
    box-shadow: var(--shadow-light);
}

.project-item.hidden {
    display: none;
}

.project-img {
    position: relative;
    width: 100%;
    height: 180px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 0;
    margin: 0;
    overflow: hidden;
    transition: transform 0.4s ease;
}

/* Hover overlay element */
.project-img::after {
    content: "View Project \\2728"; /* Rocket icon or sparkle */
    position: absolute;
    inset: 0;
    background: rgba(15, 12, 12, 0.85); /* Deep dark overlay fitting theme */
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.1rem;
    font-weight: 700;
    color: var(--accent);
    opacity: 0;
    transition: all 0.4s ease;
    backdrop-filter: blur(2px);
    transform: translateY(20px);
}

.project-item:hover .project-img {
    transform: scale(1.05); /* Slight zoom on image */
}

.project-item:hover .project-img::after {
    opacity: 1;
    transform: translateY(0); /* Slide up while fading in */
}

.project-img img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.project-title {
    font-size: 0.9rem;
    font-weight: 600;
    color: var(--text-bright);
    margin-bottom: 2px;
    padding: 14px 16px 0;
}

.project-category {
    font-size: 0.75rem;
    color: var(--text-muted);
    padding: 0 16px;
    margin-bottom: 8px;
}

.project-desc {
    font-size: 0.82rem;
    color: var(--text-muted);
    line-height: 1.6;
    padding: 0 16px;
    margin-bottom: 12px;
}

.project-tech-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 6px;
    padding: 0 16px 16px;
}

.project-tech-tags span {
    background: rgba(100, 255, 218, 0.1);
    color: var(--accent);
    padding: 4px 10px;
    border-radius: 6px;
    font-size: 0.72rem;
    font-weight: 500;
}

/* ===== CONTACT PAGE ===== */
.contact-section {
    margin-top: 10px;
}

.contact-form-title {
    margin-bottom: 20px;
    position: relative;
    padding-bottom: 10px;
}

.contact-form-title::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 30px;
    height: 2px;
    background: var(--accent);
    border-radius: 2px;
}

.contact-form {
    display: flex;
    flex-direction: column;
    gap: 16px;
}

.input-wrapper {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 16px;
}

.form-input {
    width: 100%;
    padding: 14px 16px;
    background: var(--bg-main);
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
    color: var(--text-bright);
    font-family: inherit;
    font-size: 0.9rem;
    transition: border-color var(--transition);
    outline: none;
    resize: vertical;
}

.form-input::placeholder {
    color: var(--text-muted);
}

.form-input:focus {
    border-color: var(--accent);
}

textarea.form-input {
    min-height: 140px;
}

.form-btn {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    padding: 13px 28px;
    background: var(--accent);
    color: var(--bg-main);
    border: none;
    border-radius: var(--radius-sm);
    font-family: inherit;
    font-size: 0.9rem;
    font-weight: 600;
    cursor: pointer;
    transition: all var(--transition);
    align-self: flex-end;
}

.form-btn:hover {
    background: var(--accent-dark);
    transform: translateY(-2px);
    box-shadow: 0 4px 15px rgba(100, 255, 218, 0.3);
}

.form-btn svg {
    fill: var(--bg-main);
}

.form-success {
    text-align: center;
    padding: 40px 20px;
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
}

.form-success p {
    color: var(--text-muted);
    margin-top: 8px;
}

/* ===== SCROLLBAR ===== */
::-webkit-scrollbar {
    width: 6px;
}

::-webkit-scrollbar-track {
    background: var(--bg-main);
}

::-webkit-scrollbar-thumb {
    background: var(--border);
    border-radius: 10px;
}

::-webkit-scrollbar-thumb:hover {
    background: var(--text-muted);
}

/* Firefox scrollbar */
* {
    scrollbar-width: thin;
    scrollbar-color: var(--border) var(--bg-main);
}

/* ===== TYPING ANIMATION ===== */
.sidebar .title {
    position: relative;
    display: inline-block;
    min-width: 140px;
    min-height: 26px;
    padding-right: 8px; /* space for cursor */
}

.sidebar .title::after {
    content: '|';
    position: absolute;
    right: 0;
    color: var(--accent);
    animation: blinkCursor 0.8s step-end infinite;
}

@keyframes blinkCursor {
    0%, 100% { opacity: 1; }
    50% { opacity: 0; }
}

/* ===== FOOTER ===== */
.footer {
    text-align: center;
    padding: 20px 0;
    margin-top: 25px;
    border-top: 1px solid var(--border);
}

.footer p {
    font-size: 0.78rem;
    color: var(--text-muted);
}

/* ===== RESPONSIVE ===== */
@media (max-width: 1024px) {
    body {
        flex-direction: column;
        align-items: center;
        padding: 15px;
    }

    .sidebar {
        position: relative;
        top: 0;
        width: 100%;
        min-width: unset;
        max-width: 600px;
        max-height: none;
    }

    .sidebar-info {
        flex-direction: row;
        gap: 20px;
        text-align: left;
    }

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

    .avatar-box {
        width: 80px;
        height: 80px;
    }

    .main-content {
        width: 100%;
        max-width: 600px;
    }

    .navbar {
        position: sticky;
        top: 0;
    }

    .footer {
        position: relative;
    }

    #cursor-animal {
        display: none !important;
    }
}

@media (max-width: 580px) {
    body {
        padding: 10px;
    }

    .sidebar {
        padding: 20px;
    }

    .sidebar-info {
        flex-direction: column;
        text-align: center;
    }

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

    .page {
        padding: 20px;
    }

    .service-list {
        grid-template-columns: 1fr;
    }

    .doing-item {
        flex-direction: column;
        align-items: center;
        text-align: center;
    }

    .doing-item .service-content-box {
        text-align: center;
    }

    .input-wrapper {
        grid-template-columns: 1fr;
    }

    .navbar-list {
        flex-wrap: wrap;
    }

    .navbar-link {
        padding: 8px 14px;
        font-size: 0.8rem;
    }

    .name {
        font-size: 1.15rem;
        white-space: normal;
    }

    .form-btn {
        align-self: stretch;
    }
}

/* ===== PAGE TRANSITION FULLSCREEN OVERLAY ===== */
.page-transition-overlay {
    position: fixed;
    top: -100%; /* Start hidden above the screen */
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(135deg, #101010, #1a1a2e);
    z-index: 10000;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: top 0.6s cubic-bezier(0.85, 0, 0.15, 1);
    box-shadow: 0 10px 50px rgba(100, 255, 218, 0.2);
    border-bottom: 2px solid var(--accent);
}

.page-transition-overlay.active {
    top: 0; /* Slide down to cover screen */
}

/* Sparkle/Rocket icon in the center */
.transition-icon {
    font-size: 5rem;
    animation: loadingFloat 1s ease-in-out infinite alternate;
}

@keyframes loadingFloat {
    from { transform: translateY(0) scale(1); }
    to { transform: translateY(-20px) scale(1.1); filter: drop-shadow(0 0 15px rgba(100, 255, 218, 0.6)); }
}

/* ===== 3D ANIMAL CURSOR FOLLOWER ===== */
#cursor-animal {
    position: absolute; /* Using absolute so it can flow with document body */
    top: 0;
    left: 0;
    font-size: 2.2rem;
    pointer-events: none; /* Let clicks pass cleanly through the animal */
    z-index: 9999;
    transform-style: preserve-3d;
    will-change: transform;
    filter: drop-shadow(0 4px 6px rgba(0, 0, 0, 0.5));
}