* {
    box-sizing: border-box;
}

body {
    margin: 0;
    font-family: Arial, sans-serif;
    background: #f5f5f5;
    color: #111;
    font-size: 16px;
    line-height: 1.6;
}

/* NAVBAR */
.navbar {
    background: #111;
    color: white;
}

.navbar .container {
    max-width: 1100px;
    margin: auto;
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 15px 40px;
}

.logo {
    margin: 0;
    font-size: 32px;
    font-weight: 700;
}

.logo a,
.navbar a {
    color: white;
    text-decoration: none;
}

.navbar nav a {
    margin-left: 24px;
    font-size: 16px;
}

.navbar a:hover {
    text-decoration: underline;
}

/* HERO */
.hero {
    background: white;
    padding: 70px 40px;
    text-align: center;
    border-bottom: 1px solid #e5e5e5;
}

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

.hero h2 {
    font-size: 44px;
    line-height: 1.1;
    margin: 0 0 16px;
    letter-spacing: -1px;
}

.hero p {
    max-width: 850px;
    margin: 0 auto;
    font-size: 18px;
    line-height: 1.5;
}

/* MAIN CONTENT */
.container {
    max-width: 1100px;
    margin: auto;
}

.content-modern {
    max-width: 1100px;
    margin: 0 auto;
    padding: 50px 40px;
}

.content-modern h1 {
    font-size: 32px;
    line-height: 1.2;
    margin: 40px 0 18px;
}

.content-modern h1:first-child {
    margin-top: 0;
}

.content-modern h2 {
    font-size: 26px;
    line-height: 1.25;
    margin: 0 0 14px;
}

.content-modern h3 {
    font-size: 22px;
    line-height: 1.3;
    margin: 24px 0 10px;
}

.content-modern p {
    max-width: 950px;
    font-size: 18px;
    line-height: 1.65;
    margin: 0 0 20px;
}

.content-modern ul {
    max-width: 950px;
    font-size: 18px;
    line-height: 1.55;
    margin-top: 0;
    margin-bottom: 22px;
    padding-left: 22px;
}

.content-modern li {
    margin-bottom: 6px;
}

.section-block {
    margin-top: 28px;
    margin-bottom: 36px;
}

/* TECHNICAL TEXT */
code {
    font-family: Consolas, "Courier New", monospace;
    font-size: 1em;
    background: #eeeeee;
    padding: 2px 6px;
    border-radius: 4px;
}

pre {
    background: #111827;
    color: #f9fafb;
    padding: 18px 20px;
    border-radius: 8px;
    overflow-x: auto;
    font-size: 16px;
    line-height: 1.5;
}

pre code {
    background: transparent;
    padding: 0;
    color: inherit;
}

/* TABLES */
table {
    width: 100%;
    border-collapse: collapse;
    margin: 18px 0 26px;
    background: white;
}

th,
td {
    border: 1px solid #ddd;
    padding: 12px 14px;
    text-align: left;
    font-size: 17px;
}

th {
    background: #f1f1f1;
    font-weight: 700;
}

/* SCREENSHOTS */
figure,
.lab-figure {
    margin: 30px auto 38px;
    max-width: 760px;
}

figure img,
.lab-figure img {
    width: 100%;
    display: block;
    margin: 0 auto;
    border-radius: 8px;
    border: 1px solid #ddd;
    background: white;
}

figure figcaption,
.lab-figure figcaption {
    max-width: 760px;
    margin: 10px auto 0;
    text-align: center;
    font-size: 14px;
    line-height: 1.5;
    color: #666;
    font-style: italic;
    background: transparent;
    padding: 0;
    border: none;
}

.figure-label,
figcaption strong {
    font-weight: 700;
    color: #444;
    margin-right: 4px;
}

/* CONTEXT BOX */
.callout {
    max-width: 950px;
    background: #ffffff;
    padding: 16px 22px;
    margin: 18px 0 30px;
    border-radius: 8px;
    border: 1px solid #e2e2e2;
    font-size: 18px;
    line-height: 1.5;
}

.callout strong {
    display: inline;
    margin: 0;
}

.callout p {
    margin: 0;
}

/* SUMMARY */
.summary {
    max-width: 950px;
    margin-top: 20px;
}

.summary h2 {
    margin-top: 0;
}

.summary ul {
    padding-left: 18px;
    margin-left: 0;
    margin-bottom: 18px;
    font-size: 18px;
    line-height: 1.5;
}

/* BUTTONS */
.btn {
    display: inline-block;
    margin: 12px 10px 0 0;
    padding: 10px 18px;
    background: #007bff;
    color: white;
    text-decoration: none;
    border-radius: 6px;
    font-size: 15px;
    font-weight: 600;
}

.btn:hover {
    background: #0056b3;
}
/* PROJECT CARDS */
.projects {
    padding: 40px 20px;
}

.cards {
    display: flex;
    gap: 20px;
    flex-wrap: wrap;
}

.card {
    background: white;
    padding: 24px;
    border-radius: 10px;
    flex: 1;
    min-width: 250px;
}

/* FOOTER */
footer {
    text-align: center;
    padding: 28px 20px 40px;
}

/* MOBILE */
@media (max-width: 700px) {
    .navbar .container {
        flex-direction: column;
        align-items: flex-start;
        gap: 12px;
        padding: 18px 22px;
    }

    .navbar nav a {
        margin-left: 0;
        margin-right: 16px;
        display: inline-block;
    }

    .hero {
        padding: 45px 24px;
    }

    .hero h2 {
        font-size: 30px;
    }

    .content-modern {
        padding: 36px 22px;
    }

    .content-modern h1 {
        font-size: 30px;
    }

    .content-modern h2 {
        font-size: 25px;
    }

    .content-modern h3 {
        font-size: 21px;
    }

    .content-modern p,
    .content-modern ul,
    .callout {
        font-size: 17px;
    }

    figure,
    .lab-figure {
        max-width: 100%;
    }
}