:root {
    --primary-color: #9B59B6;
    --background-color: #ffffff;
    --card-background-color: #ffffff;
    --section-alt-bg: #F9F7FB;
    --text-color: #333333;
    --text-on-primary: #FFFFFF;
    --placeholder-bg: #e0e0e0;
    --border-color: #ddd;
    --shadow-color: rgba(0, 0, 0, 0.1);
}

body.dark-mode {
    --background-color: #2C2C2C;
    --card-background-color: #383838;
    --section-alt-bg: #333333;
    --text-color: #E0E0E0;
    --text-on-primary: #FFFFFF;
    --placeholder-bg: #555555;
    --border-color: #444444;
    --shadow-color: rgba(0, 0, 0, 0.2);
}

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

body {
    font-family: 'Arial', sans-serif;
    background-color: var(--background-color);
    color: var(--text-color);
    transition: background-color 0.3s ease, color 0.3s ease;
}

header.sticky-header {
    position: sticky;
    top: 0;
    z-index: 100;
    background-color: var(--primary-color);
    padding: 8px 0;
    width: 100%;
    box-shadow: 0 2px 10px var(--shadow-color);
    transition: background-color 0.3s ease;
}

body.dark-mode header.sticky-header {
    background-color: var(--card-background-color);
}

.header-nav {
    display: flex;
    justify-content: space-between;
    align-items: center;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

.logo {
    font-family: Impact, Haettenschweiler, 'Arial Narrow Bold', sans-serif;
    font-size: 2.2rem;
    font-weight: 700;
}

.logo a {
    text-decoration: none;
    color: var(--text-on-primary);
    transition: color 0.3s ease;
}

body.dark-mode .logo a {
    color: var(--primary-color);
}

.nav-links {
    list-style: none;
    display: flex;
    align-items: center;
    padding: 0;
    margin: 0;
}

.nav-links li {
    margin-left: 25px;
}

.nav-links a {
    text-decoration: none;
    color: var(--text-on-primary);
    font-weight: bold;
    text-transform: uppercase;
    font-size: 0.9rem;
    opacity: 0.8;
    transition: opacity 0.3s ease, color 0.3s ease;
}

body.dark-mode .nav-links a {
    color: var(--text-color);
    opacity: 0.7;
}

.nav-links a:hover,
.nav-links a.active {
    opacity: 1;
}

.theme-toggle-btn {
    background-color: transparent;
    border: none;
    cursor: pointer;
    padding: 0;
    margin-left: 25px;
    color: var(--text-on-primary);
    transition: transform 0.3s ease, color 0.3s ease;
}

.theme-toggle-btn:hover {
    transform: scale(1.1);
}

.theme-icon {
    width: 24px;
    height: 24px;
    stroke-width: 2px;
}

.hidden {
    display: none;
}

body.dark-mode .theme-toggle-btn {
    color: var(--text-color);
}

.hero {
    min-height: 80vh;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 80px 20px;
}

.hero-content {
    display: flex;
    align-items: center;
    justify-content: space-between;
    max-width: 1100px;
    width: 100%;
}

.hero-text {
    flex: 2;
    padding-right: 40px;
}

.hero-text p {
    font-size: 1.4rem;
    font-weight: bold;
    text-transform: uppercase;
    letter-spacing: 4px;
    color: var(--text-color);
    opacity: 0.7;
}

.hero-text h1 {
    font-family: Impact, Haettenschweiler, 'Arial Narrow Bold', sans-serif;
    font-size: 6rem;
    color: var(--primary-color);
    text-transform: uppercase;
    line-height: 1.1;
    text-shadow: 2px 2px 2px var(--shadow-color);
}

.hero-image-placeholder {
    flex: 1;
    min-width: 280px;
    height: 280px;
    border-radius: 8px;
}

.about {
    padding: 80px 20px;
    background-color: var(--background-color);
    text-align: center;
}

.section-title {
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 40px;
}

.section-title h2 {
    font-family: Impact, Haettenschweiler, 'Arial Narrow Bold', sans-serif;
    font-size: 3rem;
    color: var(--primary-color);
    text-transform: uppercase;
    margin: 0 25px;
}

.about-content p {
    color: var(--primary-color);
    font-size: 1.25rem;
    line-height: 1.7;
    max-width: 800px;
    margin: 0 auto;
    font-weight: 500;
}

.projects {
    padding: 80px 20px;
    background-color: var(--section-alt-bg);
    width: 100%;
}

.new-project-container {
    display: flex;
    justify-content: center;
    align-items: stretch;
    flex-wrap: wrap;
    gap: 30px;
    max-width: 1200px;
    margin: 0 auto;
}

.project-card {
    background-color: var(--card-background-color);
    border-radius: 12px;
    box-shadow: 0 5px 15px var(--shadow-color);
    padding: 30px;
    width: 400px;
    max-width: 100%;
    display: flex;
    flex-direction: column;
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.project-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 8px 25px var(--shadow-color);
}

.project-card h3 {
    font-size: 1.7rem;
    font-weight: 900;
    color: var(--text-color);
    margin-bottom: 15px;
}

.project-card p.project-description {
    font-size: 1rem;
    line-height: 1.6;
    color: var(--text-color);
    opacity: 0.8;
    flex-grow: 1;
    margin-bottom: 25px;
}

.project-card .btn-github-project {
    display: inline-block;
    padding: 12px 25px;
    background-color: transparent;
    color: var(--primary-color);
    border: 2px solid var(--primary-color);
    border-radius: 50px;
    text-decoration: none;
    font-weight: bold;
    text-transform: uppercase;
    font-size: 0.9rem;
    text-align: center;
    transition: all 0.3s ease;
}

.project-card .btn-github-project:hover {
    background-color: var(--primary-color);
    color: var(--text-on-primary);
}

.project-tags {
    margin-top: 30px;
}

.project-tags span {
    display: inline-block;
    background-color: var(--section-alt-bg);
    color: var(--text-color);
    opacity: 0.7;
    padding: 5px 15px;
    border-radius: 50px;
    font-size: 0.8rem;
    margin-right: 10px;
    margin-bottom: 10px;
}

.skills {
    padding: 80px 20px;
    background-color: var(--background-color);
    text-align: center;
}

.skills-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 40px;
    max-width: 800px;
    margin: 40px auto 0;
}

.skill-item {
    position: relative;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    transition: transform 0.3s ease;
}

.skill-item:hover {
    transform: scale(1.05);
    cursor: pointer;
}

.skill-item i {
    font-size: 8rem;
}

.skill-item p {
    font-size: 1rem;
    font-weight: bold;
    color: var(--text-color);
    margin-top: 15px;
    text-transform: uppercase;
    letter-spacing: 1px;
}

.skill-info-card {
    position: absolute;
    background-color: var(--card-background-color);
    border: 1px solid var(--primary-color);
    border-radius: 8px;
    padding: 20px;
    box-shadow: 0 8px 25px var(--shadow-color);
    width: 280px;
    max-width: 90vw;
    z-index: 500;
    opacity: 0;
    transform: scale(0);
    transform-origin: center center;
    transition: opacity 0.3s ease-out, transform 0.3s ease-out;
}

.skill-info-card.show {
    opacity: 1;
    transform: scale(1);
}

.skill-info-card h4 {
    color: var(--primary-color);
    font-size: 1.2rem;
    margin-bottom: 10px;
    font-weight: bold;
}

.skill-info-card p {
    color: var(--text-color);
    font-size: 0.95rem;
    line-height: 1.5;
    text-transform: none;
    letter-spacing: 0;
    margin-top: 0;
}


.contact {
    padding: 80px 20px;
    background-color: var(--section-alt-bg);
}

footer {
    background-color: var(--text-color);
    color: var(--background-color);
    padding: 20px 20px;
    text-align: center;
}

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

.footer-content p {
    margin-bottom: 15px;
    font-size: 0.9rem;
    text-align: center;
    justify-content: center;
}

.typing-effect {
    font-size: 1.6rem;
    font-weight: 500;
    color: var(--text-color);
    height: 2.2rem;
    margin-top: 15px;
}

.typing-cursor {
    display: inline-block;
    width: 3px;
    height: 2rem;
    background-color: var(--primary-color);
    animation: blink 0.7s infinite;
    vertical-align: middle;
    margin-left: 5px;
}

.hero-buttons-container {
    margin-top: 30px;
    display: flex;
    gap: 15px;
    align-items: center;
}

.btn-hero {
    display: inline-block;
    padding: 12px 28px;
    border: 2px solid var(--primary-color);
    border-radius: 30px;
    background-color: transparent;
    color: var(--primary-color);
    font-size: 1rem;
    font-weight: bold;
    text-decoration: none;
    text-transform: uppercase;
    min-width: 230px;
    text-align: center;
}

.btn-hero:hover {
    background-color: var(--primary-color);
    color: var(--text-on-primary);
    transform: translateY(-2px);
    box-shadow: 0 4px 10px var(--shadow-color);
}

@media (max-width: 768px) {
    .hero-content {
        flex-direction: column;
        text-align: center;
    }

    .hero-text {
        padding-right: 0;
    }

    .hero-text h1 {
        font-size: 4rem;
    }

    .hero-image-placeholder {
        margin-top: 40px;
        width: 250px;
        height: 250px;
    }

    .section-title h2 {
        font-size: 2.2rem;
    }

    .section-title::before,
    .section-title::after {
        width: 80px;
    }

    .project-grid {
        grid-template-columns: repeat(3, 1fr);
    }

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

    .skill-item i {
        font-size: 6rem;
    }

    .typing-effect {
        font-size: 1.3rem;
        height: 1.8rem;
        margin-top: 10px;
    }

    .typing-cursor {
        height: 1.6rem;
    }

    .hero-buttons-container {
        justify-content: center;
    }

    .nav-links {
        display: none;
    }

    .header-nav {
        padding: 0 15px;
    }

    .logo {
        font-size: 2rem;
    }

    .theme-toggle-btn {
        margin-left: 15px;
    }
}

@media (max-width: 576px) {
    .project-grid {
        grid-template-columns: repeat(2, 1fr);
    }

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

    .skill-item i {
        font-size: 5rem;
    }

    .hero-buttons-container {
        flex-direction: column;
        width: 100%;
        max-width: 300px;
        margin-left: auto;
        margin-right: auto;
    }

    .btn-hero {
        width: 100%;
        text-align: center;
        min-width: 0;
    }
}

.contact-info-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 25px;
    max-width: 700px;
    margin: 0 auto 40px auto;
}

.contact-info-card {
    background-color: var(--card-background-color);
    padding: 25px;
    border-radius: 12px;
    box-shadow: 0 5px 15px var(--shadow-color);
    text-align: center;
    text-decoration: none;
    color: var(--text-color);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.contact-info-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 8px 25px var(--shadow-color);
}

.contact-info-card .contact-icon {
    width: 40px;
    height: 40px;
    color: var(--primary-color);
    margin-bottom: 15px;
}

.contact-info-card h3 {
    font-size: 1.2rem;
    font-weight: bold;
    color: var(--text-color);
    margin-bottom: 5px;
}

.contact-info-card p {
    font-size: 0.9rem;
    color: var(--text-color);
    opacity: 0.7;
    word-break: break-word;
}

.experience {
    padding: 80px 20px;
    background-color: var(--section-alt-bg); 
}

.experience-container {
    display: flex;
    justify-content: center;
    max-width: 1200px;
    margin: 0 auto;
}

.experience-card {
    background-color: var(--card-background-color);
    border-left: 5px solid var(--primary-color); 
    border-radius: 12px;
    box-shadow: 0 5px 15px var(--shadow-color);
    padding: 40px;
    width: 800px;
    max-width: 100%;
    transition: transform 0.3s ease;
}

.experience-card:hover {
    transform: translateX(10px);
}

.exp-header {
    display: flex;
    flex-direction: column;
    margin-bottom: 20px;
}

.exp-header h3 {
    font-size: 1.8rem;
    color: var(--primary-color);
    margin-bottom: 5px;
}

.exp-company {
    font-size: 1.2rem;
    font-weight: bold;
    color: var(--text-color);
}

.exp-date {
    font-size: 0.9rem;
    opacity: 0.7;
    margin-top: 5px;
}

.exp-description {
    font-size: 1.05rem;
    line-height: 1.6;
    margin-bottom: 20px;
    color: var(--text-color);
}

.projects {
    background-color: var(--background-color); 
}

.btn-github-project{
  text-decoration: underline;
  color: inherit;
}