/* Basic page styling */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

/* Overall page */
body {
    font-family: Arial, sans-serif;
    background-color: #F5F7FA;
    color: #1E293B;
    line-height: 1.6;
}

/* Hero / Header section */
.hero {
    background-color: #FFFFFF;
    padding: 70px 10%;
    border-bottom: 1px solid #E2E8F0;
}

.hero-content {
    max-width: 1100px;
    margin: 0 auto;
}

.hero-label {
    color: #2563EB;
    font-size: 14px;
    font-weight: bold;
    letter-spacing: 2px;
    margin-bottom: 15px;
}

.hero h1 {
    font-size: 42px;
    color: #0F172A;
    margin-bottom: 10px;
}

.hero h2 {
    font-size: 23px;
    color: #2563EB;
    font-weight: 500;
    margin-bottom: 20px;
}

.hero-description {
    max-width: 750px;
    font-size: 16px;
    color: #475569;
    margin-bottom: 25px;
}

/* Hero action links */
.hero-links {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: 12px;
}

.hero-links a {
    display: inline-block;
    text-decoration: none;
    color: #2563EB;
    background-color: #FFFFFF;
    border: 1px solid #2563EB;
    padding: 10px 18px;
    border-radius: 8px;
    font-weight: 600;
    transition: all 0.3s ease;
}

/* Hover effect */
.hero-links a:hover {
    color: #FFFFFF;
    background-color: #2563EB;
    box-shadow: 0 0 15px rgba(37, 99, 235, 0.45);
    transform: translateY(-3px);
}

/* Navigation bar */
nav {
    background-color: #FFFFFF;
    padding: 18px 10%;
    border-bottom: 1px solid #E2E8F0;
    display: flex;
    justify-content: center;
    gap: 35px;
}

nav a {
    text-decoration: none;
    color: #334155;
    font-size: 15px;
    font-weight: 600;
    padding: 8px 14px;
    border-radius: 8px;
    transition: all 0.3s ease;
}

nav a:hover {
    color: #2563EB;
    background-color: #DBEAFE;
    box-shadow: 0 0 12px rgba(37, 99, 235, 0.35);
    transform: translateY(-2px);
}

nav a:hover {
    color: #2563EB;
}

/* Main content sections */
main {
    max-width: 1100px;
    margin: 50px auto;
    padding: 0 25px;
}

/* Individual section cards */
main section {
    background-color: #FFFFFF;
    padding: 30px;
    margin-bottom: 25px;
    border: 1px solid #E2E8F0;
    border-radius: 12px;
    box-shadow: 0 4px 12px rgba(15, 23, 42, 0.04);
}

/* Section headings */
main section h2 {
    color: #0F172A;
    font-size: 24px;
    margin-bottom: 18px;
}

/* About Me paragraphs */
#about p {
    color: #475569;
    font-size: 16px;
    line-height: 1.8;
    margin-bottom: 15px;
}

/* About Me section */
#about {
    position: relative;
    overflow: hidden;
}

/* About Me heading */
#about h2 {
    font-size: 26px;
    color: #0F172A;
    padding-bottom: 12px;
    border-bottom: 2px solid #DBEAFE;
    position: relative;
}

//* About Me section */
#about {
    background: linear-gradient(135deg, #FFFFFF 70%, #EFF6FF 100%);
    padding: 40px;
    border-radius: 14px;
    border-left: 5px solid #2563EB;
    box-shadow: 0 6px 20px rgba(15, 23, 42, 0.06);
}

/* About Me heading */
#about h2 {
    color: #0F172A;
    font-size: 28px;
    margin-bottom: 25px;
    padding-bottom: 15px;
    border-bottom: 2px solid #DBEAFE;
}

/* About Me paragraphs */
#about p {
    color: #475569;
    font-size: 16px;
    line-height: 1.9;
    margin-bottom: 20px;
    max-width: 900px;
}

/* Remove final paragraph spacing */
#about p:last-child {
    margin-bottom: 0;
}

/* Highlight the final paragraph */
#about p:last-child {
    margin-bottom: 0;
}

/* Technical Skills */
.skill-category {
    background-color: #F8FAFC;
    border: 1px solid #E2E8F0;
    border-radius: 10px;
    padding: 18px 20px;
    margin-bottom: 15px;
    transition: all 0.3s ease;
}

.skill-category h3 {
    color: #2563EB;
    font-size: 17px;
    margin-bottom: 8px;
}

.skill-category p {
    color: #475569;
    font-size: 15px;
}

/* Skill category hover effect */
.skill-category:hover {
    border-color: #2563EB;
    box-shadow: 0 4px 15px rgba(37, 99, 235, 0.12);
    transform: translateY(-3px);
}

/* Skill badges */
.skill-list {
    display: flex;
    flex-wrap: wrap;
    gap: 12px;
}

.skill-list span {
    display: inline-block;
    background-color: #EFF6FF;
    color: #1D4ED8;
    border: 1px solid #BFDBFE;
    padding: 8px 16px;
    border-radius: 20px;
    font-size: 14px;
    font-weight: 600;
    transition: all 0.3s ease;
}

/* Skill badge hover */
.skill-list span:hover {
    background-color: #2563EB;
    color: #FFFFFF;
    box-shadow: 0 0 12px rgba(37, 99, 235, 0.3);
    transform: translateY(-3px);
}

/* Projects section */
.project-card {
    background-color: #F8FAFC;
    border: 1px solid #E2E8F0;
    border-radius: 12px;
    padding: 25px;
    margin-top: 20px;
    transition: all 0.3s ease;
}

.project-card h3 {
    color: #1D4ED8;
    font-size: 20px;
    margin-bottom: 12px;
}

.project-card p {
    color: #475569;
    line-height: 1.8;
    margin-bottom: 15px;
}

.project-tech {
    font-size: 14px;
    font-weight: 600;
    color: #2563EB !important;
}

.project-status {
    display: inline-block;
    background-color: #DBEAFE;
    color: #1D4ED8;
    padding: 6px 12px;
    border-radius: 20px;
    font-size: 13px;
    font-weight: 600;
}

/* Project card hover */
.project-card:hover {
    border-color: #2563EB;
    box-shadow: 0 6px 18px rgba(37, 99, 235, 0.12);
    transform: translateY(-3px);
}

/* Certification group headings */
.certification-group-title {
    color: #334155;
    font-size: 19px;
    margin: 25px 0 18px;
}

/* Certification grid */
.certification-list {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 20px;
}

/* Individual certification card */
.certification-card {
    background-color: #FFFFFF;
    border: 1px solid #CBD5E1;
    border-radius: 14px;
    padding: 25px;
    text-align: center;
    box-shadow: 0 4px 12px rgba(15, 23, 42, 0.04);
    transition: all 0.3s ease;
}


.certification-card h3 {
    color: #1E293B;
    font-size: 17px;
    margin: 15px 0 8px;
}

.certification-card p {
    color: #64748B;
    font-size: 14px;
    margin-bottom: 18px;
}

/* Temporary logo labels */
.cert-logo {
    color: #2563EB;
    font-size: 16px;
    font-weight: bold;
    letter-spacing: 1px;
    margin-bottom: 12px;
}

/* Certificate link */
.certification-card a {
    display: inline-block;
    color: #2563EB;
    text-decoration: none;
    font-weight: 600;
    font-size: 14px;
    padding: 8px 12px;
    border-radius: 6px;
    transition: all 0.3s ease;
}

.certification-card:hover {
    border-color: #2563EB;
    box-shadow: 0 6px 20px rgba(37, 99, 235, 0.15);
    transform: translateY(-4px);
}

/* Card hover */
.certification-card:hover {
    border-color: #2563EB;
    box-shadow: 0 6px 18px rgba(37, 99, 235, 0.12);
    transform: translateY(-4px);
}

/* Footer */
footer {
    background-color: #FFFFFF;
    border-top: 1px solid #E2E8F0;
    padding: 30px 20px;
    text-align: center;
    color: #64748B;
    font-size: 14px;
}

footer p {
    margin-top: 8px;
}

.visitor-counter {
    margin-bottom: 15px;
    color: #334155;
    font-weight: 600;
}

#visitor-count {
    color: #2563EB;
    margin-left: 5px;
}

/* Mobile navigation */
@media (max-width: 600px) {
    nav {
        flex-wrap: wrap;
        gap: 8px;
        padding: 12px 10px;
    }

    nav a {
        font-size: 14px;
        padding: 8px 10px;
    }
}

@media (max-width: 600px) {

    body {
        width: 100%;
        overflow-x: hidden;
    }

    .hero {
        padding: 40px 20px;
    }

    .hero h1 {
        font-size: 32px;
    }

    .hero h2 {
        font-size: 20px;
    }

    main {
        width: 100%;
        margin: 25px auto;
        padding: 0 15px;
    }

    main section {
        width: 100%;
        padding: 22px;
    }

    nav {
        width: 100%;
        flex-wrap: wrap;
        gap: 8px;
        padding: 12px 10px;
    }

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

    .contact-links {
        flex-direction: column;
        align-items: center;
    }

    footer {
        width: 100%;
    }
}

/* Certification badges */
.certification-badge {
    width: 120px;
    height: 120px;
    object-fit: contain;
    display: block;
    margin: 0 auto 15px;
}


/* Certificate full-screen viewer */
.certification-card {
    width: 100%;
    font: inherit;
    cursor: pointer;
    color: inherit;
    appearance: none;
    -webkit-appearance: none;
}

.certification-card .certificate-hint {
    display: inline-block;
    color: #2563EB;
    font-weight: 600;
    font-size: 14px;
    padding: 8px 12px;
    border-radius: 6px;
}

.certification-card.is-flipping {
    transform: perspective(700px) rotateY(90deg) scale(.96);
    transition: transform .32s ease;
}

.certificate-modal {
    display: none;
    position: fixed;
    inset: 0;
    z-index: 9999;
    background: rgba(15, 23, 42, .94);
    padding: 16px;
}

.certificate-modal.active {
    display: flex;
    align-items: center;
    justify-content: center;
}

.certificate-viewer {
    width: 100%;
    height: 100%;
    display: flex;
    flex-direction: column;
    overflow: hidden;
}

.certificate-toolbar {
    flex: 0 0 auto;
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 8px 4px 14px;
}

.zoom-controls {
    display: flex;
    gap: 10px;
}

.certificate-toolbar button {
    border: 1px solid #CBD5E1;
    border-radius: 8px;
    background: #FFFFFF;
    color: #1E293B;
    min-width: 42px;
    min-height: 40px;
    padding: 8px 14px;
    font-size: 18px;
    cursor: pointer;
}

.certificate-image-container {
    flex: 1;
    min-height: 0;
    overflow: auto;
    display: flex;
    align-items: center;
    justify-content: center;
}

.certificate-image-container img {
    display: block;
    max-width: 100%;
    max-height: 100%;
    width: auto;
    height: auto;
    object-fit: contain;
    transform-origin: center center;
    transition: transform .15s ease;
}

@media (max-width: 600px) {
    .certificate-modal {
        padding: 8px;
    }

    .certificate-toolbar {
        padding-bottom: 8px;
    }

    .certificate-image-container {
        justify-content: flex-start;
    }
}