/* --- Global Styles & Variables --- */
:root {
    --bg-color: #0c0d11;
    --primary-color: #1a1a1a;
    --card-bg-color: #1a1a1a;
    --accent-color: #e0e0e0;
    --text-color-primary: #e0e0e0;
    --text-color-secondary: #a0a0a0;
    --border-color: #333333;
    --success-color: #4CAF50;
    --font-family-primary: 'Space Grotesk', sans-serif;
    --font-family-secondary: 'Inter', sans-serif;
    --glass-color: rgba(26, 26, 26, 0.7);
}

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

html {
    scroll-behavior: smooth;
    scrollbar-width: none;
}

html::-webkit-scrollbar {
    display: none;
}

body {
    font-family: var(--font-family-secondary);
    color: var(--text-color-primary);
    line-height: 1.7;
    overflow-x: hidden;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    background:
        radial-gradient(ellipse at top left, rgba(255, 255, 255, 0.04) 0%, transparent 50%),
        radial-gradient(ellipse at bottom right, rgba(255, 255, 255, 0.04) 0%, transparent 50%),
        var(--bg-color);
    background-size: 100% 100%;
}

body.modal-open {
    overflow: hidden;
}

/* --- Pre-loader --- */
.preloader {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: var(--bg-color);
    display: flex;
    justify-content: center;
    align-items: center;
    z-index: 10000;
    transition: opacity 0.5s ease-out, visibility 0.5s ease-out;
    pointer-events: none;
}

.preloader.hidden {
    opacity: 0;
    visibility: hidden;
}

.spinner {
    width: 50px;
    height: 50px;
    border: 4px solid var(--border-color);
    border-top-color: var(--accent-color);
    border-radius: 50%;
    animation: spin 0.8s ease-in-out infinite;
}

@keyframes spin {
    to {
        transform: rotate(360deg);
    }
}

/* --- Header --- */
.site-header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    padding: 1.5rem 5%;
    z-index: 100;
    display: flex;
    justify-content: space-between;
    align-items: center;
    transition: background-color 0.3s ease, border-color 0.3s ease;
}

.site-header.scrolled {
    background-color: rgba(13, 13, 13, 0.8);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid var(--border-color);
}

.logo {
    font-family: var(--font-family-primary);
    font-size: 1.8rem;
    font-weight: 700;
    color: var(--text-color-primary);
    text-decoration: none;
}

.navbar ul {
    list-style: none;
    display: flex;
    gap: 2.5rem;
}

.navbar a {
    font-family: var(--font-family-secondary);
    text-decoration: none;
    color: var(--text-color-secondary);
    font-weight: 500;
    position: relative;
    transition: color 0.3s ease;
}

.navbar a:hover {
    color: var(--text-color-primary);
}

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

.navbar a:hover::after {
    width: 100%;
}

#menu-btn {
    font-size: 1.8rem;
    color: var(--text-color-primary);
    cursor: pointer;
    display: none;
}

/* --- Hero Section --- */
#hero {
    height: 100vh;
    position: relative;
    display: flex;
    justify-content: center;
    align-items: center;
    text-align: center;
    color: var(--text-color-primary);
}

.hero-content {
    position: relative;
    z-index: 2;
    padding: 2rem;
    border-radius: 10px;
}

.hero-name,
.section-title {
    font-family: var(--font-family-primary);
    font-weight: 700;
}

.hero-name {
    font-size: 4.5rem;
    letter-spacing: 2px;
}

.hero-title {
    font-family: var(--font-family-secondary);
    font-size: 1.5rem;
    font-weight: 400;
    color: var(--text-color-secondary);
    margin-bottom: 2rem;
}

.btn {
    display: inline-block;
    background: transparent;
    color: var(--accent-color);
    padding: 0.8rem 2.5rem;
    border-radius: 5px;
    font-weight: 500;
    font-size: 1rem;
    text-decoration: none;
    border: 2px solid var(--accent-color);
    transition: all 0.3s ease;
    cursor: pointer;
    text-transform: uppercase;
}

.btn:hover {
    background-color: var(--accent-color);
    color: var(--bg-color);
    transform: translateY(-3px);
    box-shadow: 0 5px 15px rgba(255, 255, 255, 0.1);
}

/* --- General Page Styles --- */
.container {
    max-width: 1100px;
    margin: 0 auto;
    padding: 0 2rem;
}

.page-section {
    padding: 8rem 0;
    position: relative;
    background-color: transparent;
}

.page-section:not(:last-of-type)::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 100%;
    height: 1px;
    background: linear-gradient(to right, transparent 0%, var(--border-color) 20%, var(--border-color) 80%, transparent 100%);
}


.section-title {
    font-family: var(--font-family-primary);
    font-size: 3rem;
    text-align: center;
    margin-bottom: 4rem;
    text-transform: uppercase;
    letter-spacing: 1px;
}

.text-link {
    color: var(--accent-color);
    text-decoration: none;
    font-weight: 500;
}

/* --- About Section --- */
.about-grid {
    display: grid;
    grid-template-columns: 2fr 1fr;
    gap: 4rem;
    align-items: center;
}

.about-text p {
    margin-bottom: 1rem;
    color: var(--text-color-secondary);
}

.about-image-wrapper {
    border-radius: 10px;
    overflow: hidden;
    transition: all 0.4s ease;
    border: 1px solid var(--border-color);
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.2);
}

.about-image-wrapper:hover {
    transform: scale(1.03);
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.4);
}

.about-image-wrapper img {
    width: 100%;
    height: auto;
    display: block;
}

/* --- Skills Section --- */
#skills {
    position: relative;
    padding: 8rem 0;
    /* Adjust as needed */
    /* This creates the fade effect on the sides */
    -webkit-mask-image: linear-gradient(to right,
            rgba(0, 0, 0, 0) 0%,
            rgba(0, 0, 0, 0.5) 20%,
            rgba(0, 0, 0, 1) 40%,
            rgba(0, 0, 0, 1) 60%,
            rgba(0, 0, 0, 0.5) 80%,
            rgba(0, 0, 0, 0) 100%);
    mask-image: linear-gradient(to right,
            rgba(0, 0, 0, 0) 0%,
            rgba(0, 0, 0, 0.5) 20%,
            rgba(0, 0, 0, 1) 40%,
            rgba(0, 0, 0, 1) 60%,
            rgba(0, 0, 0, 0.5) 80%,
            rgba(0, 0, 0, 0) 100%);
}

.skills-slider.swiper {
    width: 100%;
    /* Removed overflow: visible to ensure mask works */
    overflow: hidden;
}

.swiper-wrapper {
    /* For continuous scroll effect */
    transition-timing-function: linear !important;
    display: flex;
    /* Ensure flexbox for slides */
}

.skills-slider .swiper-slide {
    width: 120px;
    /* Fixed width for each slide to ensure consistent spacing and scrolling */
    flex-shrink: 0;
    /* Prevent slides from shrinking */
    text-align: center;
    display: flex;
    justify-content: center;
    align-items: center;
}

.skill-item {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 0.8rem;
    /* Slightly reduced gap */
    /* Removed box styles */
    background: none;
    border: none;
    padding: 0;
}

.skill-item i,
.skill-item img {
    font-size: 3.5rem;
    height: 3.5rem;
    width: auto;
    max-width: 100%;
    /* Ensure images fit within slide width */
    object-fit: contain;
    /* Maintain aspect ratio */
    color: var(--text-color-secondary);
    transition: color 0.3s ease, transform 0.3s ease;
}

.skill-item:hover i,
.skill-item:hover img {
    color: var(--text-color-primary);
    transform: scale(1.1);
}

.skill-item span {
    font-weight: 500;
    color: var(--text-color-secondary);
    transition: color 0.3s ease;
    white-space: nowrap;
    /* Prevent text wrapping */
    font-size: 0.9rem;
    /* Slightly smaller font for consistency */
}

.skill-item:hover span {
    color: var(--text-color-primary);
}

/* Specific icon colors */
.skill-item .fa-html5 {
    color: #E34F26;
}

.skill-item .fa-css3-alt {
    color: #1572B6;
}

.skill-item .fa-js-square {
    color: #F7DF1E;
}

/* .skill-item img[alt="C++ Icon"] { filter: grayscale(0%); } Color is inherent in SVG */
/* .skill-item img[alt="C Icon"] { filter: grayscale(0%); } Color is inherent in SVG */
.skill-item img[alt="MySQL Icon"] {
    filter: grayscale(0%);
}

/* Color is inherent in SVG */
.skill-item .fa-git-alt {
    color: #F05032;
}

.skill-item .fa-github {
    color: #FFFFFF;
}


/* --- Soft Skills Section --- */
.soft-skills-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 1.5rem;
    text-align: center;
}

.soft-skill-item {
    background-color: var(--card-bg-color);
    padding: 2rem 1.5rem;
    border-radius: 8px;
    border: 1px solid var(--border-color);
    font-weight: 500;
    color: var(--text-color-secondary);
    transition: all 0.3s ease;
}

.soft-skill-item:hover {
    color: var(--text-color-primary);
    transform: translateY(-5px);
    border-color: var(--accent-color);
    box-shadow: 0 10px 20px rgba(0, 0, 0, 0.2);
}

/* --- Projects Section --- */
.projects-grid {
    display: flex;
    overflow-x: auto;
    gap: 2rem;
    padding-bottom: 1rem;
    -ms-overflow-style: none;
    scrollbar-width: none;
}

.projects-grid::-webkit-scrollbar {
    display: none;
}

.project-card {
    background-color: var(--card-bg-color);
    border-radius: 10px;
    overflow: hidden;
    cursor: pointer;
    border: 1px solid var(--border-color);
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.1);
    display: flex;
    flex-direction: column;
    transition: none;
    flex-shrink: 0;
    width: 320px;
}

.project-card img {
    width: calc(100% - 2rem);
    height: 180px;
    object-fit: cover;
    display: block;
    margin: 1rem 1rem 0 1rem;
    border-radius: 5px;
    border: 1px solid #2a2a2a;
    transition: none;
}

.project-info {
    padding: 1.5rem;
    display: flex;
    flex-direction: column;
    flex-grow: 1;
}

.project-title {
    font-family: var(--font-family-primary);
    font-size: 1.5rem;
    margin-bottom: 0.5rem;
}

.project-description {
    color: var(--text-color-secondary);
    font-size: 0.9rem;
    margin-bottom: 1rem;
    flex-grow: 1;
}

.project-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
    margin-bottom: 1.5rem;
}

.tag {
    background-color: var(--border-color);
    color: var(--text-color-secondary);
    font-size: 0.8rem;
    padding: 0.3rem 0.8rem;
    border-radius: 20px;
    transition: background-color 0.3s ease, color 0.3s ease;
}

.tag:hover {
    background-color: var(--accent-color);
    color: var(--bg-color);
}

.view-details-btn {
    align-self: flex-start;
    background: #2a2a2a;
    border: 1px solid #2a2a2a;
    color: var(--text-color-secondary);
    font-weight: 500;
    text-transform: none;
    padding: 0.6rem 2rem;
    transition: all 0.3s ease;
    margin-top: auto;
}

.view-details-btn:hover {
    background: #383838;
    border-color: #383838;
    color: var(--text-color-primary);
    transform: translateY(-2px);
    box-shadow: none;
}


/* --- Certificates Section --- */
.certificates-grid {
    display: flex;
    overflow-x: auto;
    gap: 2rem;
    padding-bottom: 1rem;
    -ms-overflow-style: none;
    scrollbar-width: none;
}

.certificates-grid::-webkit-scrollbar {
    display: none;
}

.certificate-card {
    background-color: var(--card-bg-color);
    border-radius: 10px;
    overflow: hidden;
    cursor: pointer;
    border: 1px solid var(--border-color);
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.1);
    transition: none;
    display: flex;
    flex-direction: column;
    flex-shrink: 0;
    width: 320px;
}

.certificate-card img {
    width: calc(100% - 2rem);
    height: 180px;
    object-fit: cover;
    display: block;
    margin: 1rem 1rem 0 1rem;
    border-radius: 5px;
    border: 1px solid #2a2a2a;
    transition: none;
}

.certificate-info {
    padding: 1.5rem;
    display: flex;
    flex-direction: column;
    flex-grow: 1;
}

.certificate-title {
    font-family: var(--font-family-primary);
    font-size: 1.5rem;
    margin-bottom: 0.2rem;
}

.certificate-provider {
    color: var(--text-color-secondary);
    font-size: 0.9rem;
    margin-bottom: 1rem;
}

.certificate-card .view-details-btn {
    align-self: flex-start;
    margin-top: auto;
}

/* --- Modal Styles --- */
.modal-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0, 0, 0, 0.85);
    backdrop-filter: blur(5px);
    z-index: 1000;
    display: flex;
    justify-content: center;
    align-items: center;
    opacity: 0;
    visibility: hidden;
    transition: opacity 0.3s ease, visibility 0.3s ease;
}

.modal-overlay.active {
    opacity: 1;
    visibility: visible;
}

.modal-content {
    background: var(--glass-color);
    padding: 2rem;
    border-radius: 10px;
    width: 90%;
    max-width: 650px;
    max-height: 90vh;
    overflow-y: auto;
    position: relative;
    transform: scale(0.95) translateY(20px);
    transition: transform 0.3s ease;
    border: 1px solid var(--border-color);
    box-shadow: 0 10px 40px rgba(0, 0, 0, 0.4);
    backdrop-filter: blur(10px);
    -ms-overflow-style: none;
    scrollbar-width: none;
}

.modal-content::-webkit-scrollbar {
    display: none;
}

.modal-overlay.active .modal-content {
    transform: scale(1) translateY(0);
}

.modal-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    border-bottom: 1px solid var(--border-color);
    padding-bottom: 1rem;
    margin-bottom: 1rem;
}

.modal-title {
    font-family: var(--font-family-primary);
    font-size: 1.8rem;
    color: var(--accent-color);
}

.close-modal {
    background: none;
    border: none;
    color: var(--text-color-secondary);
    font-size: 2rem;
    cursor: pointer;
    transition: color 0.3s ease, transform 0.3s ease;
}

.close-modal:hover {
    color: var(--text-color-primary);
    transform: rotate(90deg);
}

.modal-body {
    color: var(--text-color-secondary);
    margin-bottom: 1rem;
}

.modal-body img {
    width: 100%;
    max-height: 350px;
    object-fit: cover;
    border-radius: 8px;
    margin-bottom: 1rem;
    border: 1px solid var(--border-color);
}

.modal-body p {
    color: var(--text-color-secondary);
    margin-bottom: 1.5rem;
}

.modal-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
    margin-bottom: 1.5rem;
}

.modal-links {
    display: flex;
    gap: 1rem;
    justify-content: flex-end;
    padding-top: 1rem;
    border-top: 1px solid var(--border-color);
}

.modal-links .btn {
    background: var(--accent-color);
    color: var(--bg-color);
    padding: 0.6rem 1.5rem;
    font-size: 0.9rem;
    text-transform: none;
    border: none;
    position: relative;
    overflow: hidden;
}

.modal-links .btn:hover {
    background: var(--primary-color);
    color: var(--accent-color);
    border: 1px solid var(--accent-color);
}

.modal-links .btn::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(120deg, transparent, rgba(255, 255, 255, 0.2), transparent);
    transition: all 0.6s;
}

.modal-links .btn:hover::before {
    left: 100%;
}


/* --- Contact Form Design --- */
#contact-form-wrapper {
    max-width: 700px;
    margin: 0 auto;
    background-color: var(--card-bg-color);
    padding: 3rem;
    border-radius: 10px;
    border: 1px solid var(--border-color);
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.2);
}

.contact-intro {
    font-size: 1.2rem;
    color: var(--text-color-secondary);
    margin-bottom: 2rem;
    text-align: center;
}

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

.form-group {
    position: relative;
}

.form-group input,
.form-group textarea {
    width: 100%;
    padding: 1rem;
    background: var(--bg-color);
    border: 1px solid var(--border-color);
    border-radius: 5px;
    color: var(--text-color-primary);
    font-family: var(--font-family-secondary);
    font-size: 1rem;
    transition: all 0.3s ease;
}

.form-group label {
    position: absolute;
    top: 1rem;
    left: 1rem;
    color: var(--text-color-secondary);
    pointer-events: none;
    transition: all 0.3s ease;
}

.form-group input:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--accent-color);
    box-shadow: 0 0 15px rgba(224, 224, 224, 0.1);
}

.form-group input:focus+label,
.form-group textarea:focus+label,
.form-group input:valid+label,
.form-group textarea:valid+label {
    top: -0.7rem;
    font-size: 0.9rem;
    color: var(--accent-color);
    background: var(--primary-color);
    padding: 0 0.5rem;
}

#form-status {
    text-align: center;
    margin-top: 1rem;
    font-weight: 500;
    color: var(--success-color);
    opacity: 0;
    transition: opacity 0.3s ease;
}

#form-status.visible {
    opacity: 1;
}

.send-btn {
    background: var(--accent-color);
    color: var(--bg-color);
    font-weight: 600;
    border: none;
    padding: 1rem 2rem;
    border-radius: 8px;
    cursor: pointer;
    transition: all 0.3s ease;
}

.send-btn:hover {
    background: var(--text-color-secondary);
    transform: translateY(-2px);
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.3);
}

.resume-btn-container {
    text-align: center;
    margin-top: 4rem;
}

.resume-btn {
    background: transparent;
    border: 1px solid var(--accent-color);
    color: var(--accent-color);
    position: relative;
    z-index: 1;
    overflow: hidden;
    box-shadow: 0 10px 20px rgba(0, 0, 0, 0.3);
    border-radius: 100px;
    font-family: var(--font-family-primary);
    font-size: 1.1rem;
    padding: 1rem 3rem;
}

.resume-btn:hover {
    background: var(--accent-color);
    color: var(--bg-color);
    box-shadow: 0 15px 30px rgba(0, 0, 0, 0.4);
    transform: translateY(-5px);
}


/* --- Footer --- */
.site-footer {
    text-align: center;
    padding: 3rem 0;
    background-color: var(--bg-color);
    border-top: 1px solid var(--border-color);
}

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

.social-links-footer a {
    color: var(--text-color-secondary);
    font-size: 1.5rem;
    transition: color 0.3s ease, transform 0.3s ease;
}

.social-links-footer a:hover {
    color: var(--text-color-primary);
    transform: translateY(-3px);
}

.site-footer p {
    font-size: 0.9rem;
    color: var(--text-color-secondary);
}

/* --- Responsive --- */
@media (max-width: 992px) {
    .about-grid {
        grid-template-columns: 1fr;
        gap: 2rem;
    }

    .about-image-wrapper {
        order: -1;
        max-width: 400px;
        margin: 0 auto;
    }
}

@media (max-width: 768px) {
    .site-header {
        padding: 1.5rem 5%;
    }

    #menu-btn {
        display: block;
    }

    .navbar {
        position: absolute;
        top: 100%;
        left: -100%;
        width: 100%;
        background-color: var(--primary-color);
        border-bottom: 1px solid var(--border-color);
        transition: left 0.3s ease;
        padding: 0 5%;
    }

    .navbar.active {
        left: 0;
    }

    .navbar ul {
        flex-direction: column;
        padding: 1rem 0;
        gap: 0;
    }

    .navbar a {
        display: block;
        padding: 1rem;
        border-radius: 5px;
    }

    .navbar a:hover {
        background-color: var(--border-color);
    }

    .navbar a::after {
        display: none;
    }

    .hero-name {
        font-size: 3rem;
    }

    .hero-title {
        font-size: 1.2rem;
    }

    .section-title {
        font-size: 2.5rem;
    }

    .projects-grid,
    .certificates-grid,
    .skills-grid {
        flex-wrap: wrap;
        justify-content: center;
    }

    #contact-form-wrapper {
        padding: 2rem;
    }

    .modal-content {
        max-width: 95%;
        padding: 1.5rem;
    }

    .modal-title {
        font-size: 1.5rem;
    }

    .modal-body img {
        max-height: 250px;
    }
}