* {
    box-sizing: border-box;
}

body {
    margin: 0;
    font-family: Arial, sans-serif;
    background-color: #f8f9fa;
    color: #1f2937;
}

/* =========================
   HEADER
   ========================= */

header {
    position: sticky;
    top: 0;
    z-index: 1000;

    width: 100%;
    background-color: #f8f9fa;
    border-bottom: 1px solid #e5e7eb;
}

.header-content {
    width: 100%;
    max-width: 1100px;
    margin: 0 auto;
    padding: 25px 30px;

    display: flex;
    justify-content: space-between;
    align-items: center;
}

header h1 {
    margin: 0;
    font-size: 1.5rem;
}

nav {
    display: flex;
    gap: 18px;
}

nav a {
    color: #1f2937;
    text-decoration: none;
    font-size: 0.95rem;
}

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

/* Nyelvváltó */

.language-switch {
    margin-left: 10px;
    padding-left: 20px;
    border-left: 1px solid #d1d5db;
    color: #2563eb;
    font-weight: bold;
}

/* =========================
   HERO
   ========================= */

.hero {
    display: flex;
    align-items: center;
    padding: 60px 30px;
}

.hero-container {
    width: 100%;
    max-width: 1100px;
    margin: 0 auto;

    display: grid;
    grid-template-columns: 1fr 1.2fr;
    gap: 80px;
    align-items: center;
}

.hero-content {
    width: 100%;
    max-width: 650px;
    text-align: left;
}

.hero-greeting {
    margin-bottom: 15px;
    color: #2563eb;
    font-size: 1.1rem;
    font-weight: bold;
}

.hero h2 {
    margin: 0;
    font-size: 3.5rem;
    line-height: 1.1;
}

.hero-description {
    max-width: 600px;
    margin: 25px 0 0;
    color: #6b7280;
    font-size: 1.1rem;
    line-height: 1.7;
}

.hero-visual {
    display: flex;
    justify-content: center;
}

.hero-code-card {
    width: 280px;
    padding: 35px;
    display:  flex;
    flex-direction: column;
    gap: 18px;
    background-color: white;
    border: 1px solid #e5e7eb;
    border-radius: 12px;
}

.hero-code-card span {
    padding: 12px 15px;
    background-color: #f3f4f6;
    border-radius: 6px;

    font-size: 1rem;
    font-weight: bold;
}

.hero-technologies {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
    margin-top: 25px;
}

.hero-technologies span {
    padding: 7px 11px;
    background-color: #f3f4f6;
    border-radius: 5px;
    font-size: 0.85rem;
}

/* =========================
   BUTTONS
   ========================= */

.hero-buttons {
    margin-top: 30px;
}

.button {
    display: inline-block;
    padding: 13px 25px;
    margin: 5px;
    border: 2px solid #2563eb;
    border-radius: 6px;
    background-color: #2563eb;
    color: white;
    text-decoration: none;
    font-weight: bold;
}

.button:hover {
    background-color: #1d4ed8;
    border-color: #1d4ed8;
}

.button-secondary {
    background-color: transparent;
    color: #2563eb;
}

.button-secondary:hover {
    background-color: #2563eb;
    color: white;
}

/* =========================
   SECTIONS
   ========================= */

.section {
    padding: 60px 20px;
}


.section-content {
    width: 100%;
    max-width: 1100px;
    margin: 0 auto;
}

.section h2 {
    margin-bottom: 40px;

    font-size: 2rem;
}

.about-text {
    max-width: 750px;
}

.about-text p {
    margin-bottom: 20px;

    color: #6b7280;

    font-size: 1.05rem;
    line-height: 1.8;
}

/* =========================
   SKILLS
   ========================= */

.skills-container {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 25px;
}

.skill-category {
    padding: 25px;

    background-color: white;

    border: 1px solid #e5e7eb;
    border-radius: 8px;
}

.skill-category h3 {
    margin-top: 0;
    margin-bottom: 20px;

    font-size: 1.2rem;
}

.skills-list {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
}

.skills-list span {
    padding: 8px 12px;

    background-color: #f3f4f6;

    border-radius: 5px;

    font-size: 0.9rem;
}

/* =========================
   EXPERIENCE
   ========================= */

.experience-item {
    display: grid;
    grid-template-columns: 180px 1fr;
    gap: 40px;
    max-width: 900px;
    padding-bottom: 40px;
    border-bottom: 1px solid #e5e7eb;
}

.experience-item + .experience-item {
    margin-top: 40px;
}

.experience-date {
    color: #2563eb;
    font-weight: bold;
}

.experience-content h3 {
    margin-top: 0;
    margin-bottom: 8px;
    font-size: 1.3rem;
}

.experience-company {
    margin-top: 0;
    color: #6b7280;
    font-weight: bold;
}

.experience-content p {
    color: #6b7280;
    line-height: 1.7;
}

/* =========================
   PROJECTS
   ========================= */

.projects-container {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 25px
}

.project-card {
    padding: 30px;
    background-color: white;
    border: 1px solid #e5e7eb;
    border-radius: 8px;
}

.project-content h3 {
    margin-top: 0;
    margin-bottom: 15px;
    font-size: 1.4rem;
}

.project-content p {
    color: #6b7280;
    line-height: 1.7;
}

.project-technologies {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
    margin-top: 20px;
}

.project-technologies span {
    padding: 7px 11px;
    background-color: #f3f4f6;
    border-radius: 5px;
    font-size: 0.85rem;
}

.project-video {
    width: 100%;
    height: auto;
    margin-top: 20px;
    display: block;

    border: 1px solid #e5e7eb;
    border-radius: 8px;

    background-color: #000;
}

.project-status {
    margin-bottom: 15px;
    color: #6b7280;
    font-size: 0.9rem;
    font-weight: bold;
}

.project-links {
    margin-top: 25px;
}

/* =========================
   CONTACT
   ========================= */

.contact-content {
    max-width: 700px;
}

.contact-content > p {
    color: #6b7280;
    line-height: 1.7;
}

.contact-links {
    display: flex;
    flex-wrap: wrap;
    gap: 20px;
    margin-top: 30px;
}

.contact-links a {
    color: #2563eb;
    text-decoration: none;
    font-weight: bold;
}

.contact-links a:hover {
    text-decoration: underline;
}

/* =========================
   RESPONSIVE DESIGN
   ========================= */

@media (max-width: 768px) {

    .hero-container {
        grid-template-columns: 1fr;
        gap: 35px;
    }

    .hero-content {
        order: 1;
        text-align: center;
    }

    .hero-description {
        margin: 20px auto 0;
    }

    .hero-visual {
        order: 2;
    }

    .hero-technologies {
        justify-content: center;
    }

    .hero-code-card {
        width: 100%;
        max-width: 280px;
        margin: 0 auto;
    }

    header {
        flex-direction: column;
        gap: 16px;
        padding: 16px 20px;
    }

    nav {
        flex-wrap: wrap;
        justify-content: center;
        gap: 12px 18px;
    }

    nav a {
        font-size: 0.9rem;
    }

    .hero {
        padding: 40px 20px;
    }

    .hero h2 {
        font-size: 2.2rem;
        line-height: 1.1;
    }

    .section {
        padding: 45px 20px;
    }

    .skills-container {
        grid-template-columns: 1fr;
    }

    .projects-container {
        grid-template-columns: 1fr;
    }

    .experience-item {
        grid-template-columns: 1fr;
        gap: 10px;
    }
}

@media (max-width: 480px) {
    header {
        padding: 14px 16px;
    }

    nav {
        gap: 10px 14px;
    }

    nav a {
        font-size: 0.85rem;
    }

    .hero {
        padding: 32px 16px;
    }

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

    .hero-code-card {
        max-width: 260px;
    }

    .section {
        padding: 40px 16px;
    }
}