/* ===== Global Reset ===== */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

/* ===== Color Variables ===== */
:root {
    --primary-color: #4A90E2;
    --primary-dark: #357ABD;
    --neutral-dark: #2C3E50;
    --neutral-medium: #7F8C8D;
    --neutral-light: #ECF0F1;
    --white: #ffffff;
    --bg-body: #FAFAFA;
}

/* ===== Body & Base ===== */
body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    background-color: var(--bg-body);
    color: var(--neutral-dark);
    line-height: 1.6;
}

.container {
    width: 90%;
    max-width: 1100px;
    margin: 0 auto;
}

/* ===== Header ===== */
.site-header {
    position: sticky;
    top: 0;
    z-index: 1000;
    background-color: var(--neutral-dark);
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
}

.header-container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 15px 0;
}

.logo a {
    font-size: 28px;
    font-weight: 700;
    color: var(--white);
    text-decoration: none;
    transition: color 0.3s ease;
}

.logo a span {
    color: var(--primary-color);
}

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

.nav-links {
    list-style: none;
    display: flex;
    gap: 30px;
}

.nav-links li a {
    color: var(--white);
    text-decoration: none;
    font-weight: 500;
    font-size: 1em;
    position: relative;
    transition: color 0.3s ease;
}

.nav-links li a::after {
    content: '';
    position: absolute;
    width: 0%;
    height: 2px;
    background-color: var(--primary-color);
    bottom: -4px;
    left: 0;
    transition: width 0.3s ease;
}

.nav-links li a:hover::after {
    width: 100%;
}

.nav-links li a:hover {
    color: var(--primary-color);
}

/* ===== Hero Section (Home) ===== */
.hero {
    text-align: center;
    padding: 80px 20px;
    background: linear-gradient(to right, var(--primary-color), var(--primary-dark));
    color: var(--white);
    border-radius: 8px;
}

.hero h2 {
    font-size: 2.5em;
    margin-bottom: 20px;
}

.hero p {
    font-size: 1.2em;
}

/* ===== Section General ===== */
.section {
    padding: 60px 0;
}

.section h2 {
    text-align: center;
    margin-bottom: 20px;
    font-size: 2em;
}

/* ===== About Section ===== */
.about-content {
    max-width: 800px;
    margin: 0 auto;
    text-align: center;
    padding: 60px 0;
}

.about-content h2 {
    color: var(--neutral-dark);
    margin-bottom: 30px;
    position: relative;
}

.about-content h2::after {
    content: '';
    display: block;
    width: 80px;
    height: 4px;
    background: var(--primary-color);
    margin: 15px auto;
    border-radius: 2px;
}

.about-content p {
    font-size: 1.1em;
    color: var(--neutral-medium);
    margin-bottom: 40px;
}

.section-box {
    max-width: 800px;
    margin: 0 auto;
    padding: 40px 20px;
    border-bottom: 1px solid #eee;
}

.section-box:last-child {
    border-bottom: none;
}

.section-box h3 {
    color: var(--neutral-dark);
    margin-bottom: 25px;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
}

.section-box ul {
    list-style-position: inside;
    padding-left: 0;
    text-align: center;
}

.section-box li {
    margin-bottom: 15px;
    color: var(--neutral-medium);
    list-style: none;
    text-align: left;
    max-width: 700px;
    margin-left: auto;
    margin-right: auto;
}

.section-box strong {
    color: var(--neutral-dark);
    font-weight: 600;
}

.education,
.hobbies {
    background-color: rgba(74, 144, 226, 0.05);
    border-radius: 8px;
}

.experience,
.contact-info {
    background-color: rgba(255, 255, 255, 0.8);
    border-radius: 8px;
}


.contact-info a {
    color: var(--primary-color);
    text-decoration: none;
    font-weight: 600;
    transition: color 0.3s ease;
}

.contact-info a:hover {
    color: var(--primary-dark);
    text-decoration: underline;
}

/* ===== Projects Section ===== */
.project-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 20px;
    margin-top: 30px;
}

.project-card {
    background-color: var(--white);
    border: 1px solid #ddd;
    padding: 20px;
    border-radius: 8px;
    transition: transform 0.3s ease;
}

.project-card:hover {
    transform: translateY(-5px);
}

.project-card h3 {
    margin-bottom: 10px;
}

.project-image {
    width: 100%;
    height: 180px;
    object-fit: cover;
    border-radius: 6px;
    margin-bottom: 15px;
}

/* ===== Skills Section ===== */
.skills-intro {
    text-align: center;
    color: var(--neutral-medium);
    margin-bottom: 30px;
    font-size: 1.1em;
}

.skills-list {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 15px;
    list-style: none;
    padding: 0;
}

.skills-list li {
    background-color: var(--primary-color);
    color: var(--white);
    padding: 10px 20px;
    border-radius: 20px;
    font-weight: bold;
}

.skills-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
    gap: 20px;
    justify-items: center;
    align-items: center;
}

.skill-card {
    background-color: var(--white);
    border-radius: 10px;
    padding: 20px;
    text-align: center;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.05);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.skill-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 6px 20px rgba(0, 0, 0, 0.1);
}

.skill-card img {
    width: 60px;
    height: 60px;
    margin-bottom: 10px;
}

.skill-card h3 {
    font-size: 1em;
    color: var(--neutral-dark);
    font-weight: bold;
}

/* ===== Contact Section ===== */
.contact-section {
    background-color: #ffffff;
    border-radius: 12px;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.05);
    padding: 60px 20px;
    margin-top: 40px;
}

.contact-subtext {
    text-align: center;
    margin-bottom: 40px;
    color: var(--neutral-medium);
    font-size: 1.1em;
}

.contact-wrapper {
    display: flex;
    flex-direction: row;
    gap: 40px;
    flex-wrap: wrap;
    justify-content: center;
}

.contact-info-card {
    background-color: var(--neutral-light);
    padding: 20px 30px;
    border-radius: 10px;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.05);
    flex: 1;
    min-width: 250px;
    max-width: 400px;
}

.contact-info-card p {
    margin-bottom: 15px;
    font-size: 1em;
}

.contact-form {
    max-width: 500px;
    display: flex;
    flex-direction: column;
    gap: 15px;
    flex: 1;
    min-width: 250px;
}

.contact-form label {
    font-weight: bold;
}

.contact-form input,
.contact-form textarea {
    padding: 10px;
    font-size: 16px;
    border: 1px solid #ccc;
    border-radius: 6px;
    width: 100%;
}

.contact-form textarea {
    resize: vertical;
}

.contact-form input:focus,
.contact-form textarea:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 2px rgba(74, 144, 226, 0.2);
    transition: 0.3s ease;
}

.contact-form button {
    background-color: var(--primary-color);
    color: var(--white);
    border: none;
    padding: 12px;
    font-size: 16px;
    border-radius: 6px;
    cursor: pointer;
    transition: background-color 0.3s ease;
}

.contact-form button:hover {
    background-color: var(--primary-dark);
}

/* ===== Footer ===== */
footer {
    background-color: var(--neutral-dark);
    color: var(--white);
    text-align: center;
    padding: 20px 0;
    margin-top: 40px;
}

.social-links {
    margin-top: 15px;
    display: flex;
    justify-content: center;
    gap: 25px;
}

.social-links img {
    width: 32px;
    height: 32px;
    transition: transform 0.3s ease;
}

.social-links img:hover {
    transform: scale(1.2);
}

/* ===== Responsive ===== */
@media (max-width: 768px) {
    .nav-links {
        flex-direction: column;
        align-items: flex-start;
        gap: 10px;
    }

    .hero h2 {
        font-size: 2em;
    }

    .about-content,
    .section-box {
        padding: 30px 20px;
    }

    .section-box h3 {
        font-size: 1.3em;
        flex-direction: column;
        text-align: center;
    }

    .section-box li {
        text-align: center;
        padding: 0 10px;
    }
}

/* ===== Hamburger Button ===== */
.hamburger {
    display: none;
    background: none;
    border: none;
    font-size: 28px;
    color: var(--white);
    cursor: pointer;
}

@media (max-width: 768px) {
    .hamburger {
        display: block;
    }

    nav {
        position: absolute;
        top: 100%;
        left: 0;
        background-color: var(--neutral-dark);
        width: 100%;
        display: none;
        padding: 10px 0;
    }

    .nav-links {
        flex-direction: column;
        align-items: center;
        gap: 15px;
    }

    nav.active,
    .nav-links.active {
        display: flex;
    }

    .header-container {
        flex-direction: row;
        justify-content: space-between;
    }
}