:root {
    --background: #151515;
    --surface: #1d1d1f;
    --text-primary: #f4f4f5;
    --text-secondary: #b6b6bc;
    --border: #3a3a3f;
    --accent: #a89bcb;
    --accent-hover: #b9adda;
}

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

html {
    scroll-behavior: smooth;
}

body {
    background: var(--background);
    color: var(--text-primary);
    font-family: Arial, Helvetica, sans-serif;
    line-height: 1.6;
}

a {
    color: inherit;
}

/* Navigation */

.site-header {
    width: 100%;
    border-bottom: 1px solid var(--border);
}

.navigation {
    max-width: 1200px;
    margin: 0 auto;
    padding: 22px 28px;

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

.logo {
    display: inline-flex;
    align-items: center;
    gap: 12px;

    color: var(--text-primary);
    font-size: 1rem;
    font-weight: 700;
    text-decoration: none;
}

.logo-mark {
    width: 38px;
    height: 38px;

    display: inline-flex;
    align-items: center;
    justify-content: center;

    border: 2px solid var(--border);
    border-radius: 0;

    color: var(--text-primary);
    background: var(--background);

    font-family: Consolas, "Courier New", monospace;
    font-size: 15px;
    font-weight: 400;
    line-height: 1;
    letter-spacing: 0;
    white-space: nowrap;
}

.logo-dot {
    color: var(--accent);
}

.logo-name {
    color: var(--text-primary);
}

/*
.logo {
    font-size: 1.1rem;
    font-weight: 700;
    text-decoration: none;
}

.logo span {
    color: var(--accent);
}
*/
.nav-links {
    display: flex;
    gap: 28px;
    list-style: none;
}

.nav-links a {
    color: var(--text-secondary);
    font-size: 0.95rem;
    text-decoration: none;
}

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

/* Hero */

.hero {
    min-height: calc(100vh - 82px);
    max-width: 1200px;
    margin: 0 auto;
    padding: 70px 28px;

    display: grid;
    grid-template-columns: minmax(300px, 0.9fr) minmax(420px, 1.1fr);
    align-items: center;
    gap: 80px;
}

.hero-image-wrapper {
    position: relative;
    max-width: 480px;
    margin: 0 auto;
}

.hero-image-wrapper::before {
    content: "";
    position: absolute;
    inset: 18px -18px -18px 18px;
    border: 2px solid var(--accent);
    border-radius: 24px;
    z-index: 0;
}

.hero-image {
    position: relative;
    z-index: 1;

    display: block;
    width: 100%;
    aspect-ratio: 4 / 5;
    object-fit: cover;
    object-position: center top;

    border-radius: 24px;
}

.eyebrow {
    margin-bottom: 12px;
    color: var(--accent);
    font-family: Consolas, "Courier New", monospace;
    font-size: 1rem;
    font-weight: 700;
}

.hero h1 {
    margin-bottom: 12px;
    font-size: clamp(3rem, 6vw, 5rem);
    line-height: 1.05;
    letter-spacing: -0.04em;
}

.hero-title {
    margin-bottom: 24px;
    color: var(--text-primary);
    font-family: Consolas, "Courier New", monospace;
    font-size: clamp(1.15rem, 2.5vw, 1.55rem);
    font-weight: 400;
}

.hero-description {
    max-width: 680px;
    margin-bottom: 34px;
    color: var(--text-secondary);
    font-size: 1.1rem;
}

.hero-actions {
    display: flex;
    flex-wrap: wrap;
    gap: 16px;
}

.button {
    display: inline-block;
    padding: 13px 22px;

    border: 2px solid var(--accent);
    border-radius: 999px;

    background: var(--accent);
    color: #151515;

    font-family: Consolas, "Courier New", monospace;
    font-weight: 700;
    text-decoration: none;

    transition:
        background 0.2s ease,
        border-color 0.2s ease,
        transform 0.2s ease;
}

.button:hover {
    background: var(--accent-hover);
    border-color: var(--accent-hover);
    transform: translateY(-2px);
}

.button-secondary {
    background: transparent;
    color: var(--text-primary);
}

.button-secondary:hover {
    color: #151515;
}

/* Shared sections */

.section {
    padding: 110px 28px;
    border-top: 1px solid var(--border);
}

.section-container {
    width: 100%;
    max-width: 1200px;
    margin: 0 auto;
}

.section-heading {
    max-width: 720px;
    margin-bottom: 55px;
}

.section-label {
    margin-bottom: 8px;
    color: var(--accent);
    font-family: Consolas, "Courier New", monospace;
    font-size: 0.95rem;
    font-weight: 700;
}

.section-heading h2 {
    font-size: clamp(2.4rem, 5vw, 4rem);
    line-height: 1.1;
    letter-spacing: -0.03em;
}

/* About */

.about-grid {
    display: grid;
    grid-template-columns: minmax(300px, 0.9fr) minmax(500px, 1.1fr);
    gap: 75px;
    align-items: start;
}

.about-introduction p {
    margin-bottom: 22px;
    color: var(--text-secondary);
    font-size: 1.05rem;
}

.about-introduction .about-lead {
    color: var(--text-primary);
    font-size: 1.35rem;
    line-height: 1.55;
}

.about-details {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 18px;
}

.information-card {
    min-height: 210px;
    padding: 28px;

    border: 1px solid var(--border);
    border-radius: 20px;

    background: var(--surface);

    transition:
        border-color 0.2s ease,
        transform 0.2s ease;
}

.information-card:hover {
    border-color: var(--accent);
    transform: translateY(-3px);
}

.card-label {
    margin-bottom: 16px;
    color: var(--accent);
    font-family: Consolas, "Courier New", monospace;
    font-size: 0.85rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.08em;
}

.information-card h3 {
    margin-bottom: 12px;
    font-size: 1.25rem;
}

.information-card p {
    color: var(--text-secondary);
    font-size: 0.95rem;
}

/* Experience */

.experience-header {
    display: flex;
    align-items: end;
    justify-content: space-between;
    gap: 30px;
    margin-bottom: 30px;
    padding-bottom: 28px;
    border-bottom: 1px solid var(--border);
}

.experience-role {
    margin-bottom: 6px;
    color: var(--accent);
    font-family: Consolas, "Courier New", monospace;
    font-size: 0.95rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.08em;
}

.experience-header h3 {
    font-size: clamp(1.8rem, 4vw, 2.6rem);
}

.experience-environment {
    max-width: 430px;
    color: var(--text-secondary);
    text-align: right;
}

.experience-summary {
    max-width: 950px;
    margin-bottom: 45px;
    color: var(--text-secondary);
    font-size: 1.1rem;
}

.responsibility-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 18px;
}

.responsibility-card {
    min-height: 285px;
    padding: 28px;
    border: 1px solid var(--border);
    border-radius: 20px;
    background: var(--surface);
    transition:
        border-color 0.2s ease,
        transform 0.2s ease;
}

.responsibility-card:hover {
    border-color: var(--accent);
    transform: translateY(-3px);
}

.responsibility-card h3 {
    margin-bottom: 14px;
    font-size: 1.25rem;
}

.responsibility-card p:last-child {
    color: var(--text-secondary);
    font-size: 0.95rem;
}

.systems-heading {
    margin-top: 80px;
    margin-bottom: 30px;
}

.systems-heading h3 {
    font-size: clamp(1.8rem, 4vw, 2.6rem);
}

.systems-grid {
    display: grid;
    grid-template-columns: repeat(5, 1fr);
    gap: 16px;
}

.system-card {
    padding: 24px;
    border-top: 3px solid var(--accent);
    border-radius: 0 0 16px 16px;
    background: var(--surface);
}

.system-card h4 {
    margin-bottom: 12px;
    font-size: 1.05rem;
}

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

/* Mobile */

@media (max-width: 850px) {
    .navigation {
        padding: 18px 20px;
    }

    .nav-links {
        display: none;
    }

    .hero {
        min-height: auto;
        padding: 60px 22px 80px;
        grid-template-columns: 1fr;
        gap: 55px;
        text-align: center;
    }

    .hero-image-wrapper {
        max-width: 370px;
    }

    .hero-content {
        max-width: 700px;
        margin: 0 auto;
    }

    .hero-description {
        margin-right: auto;
        margin-left: auto;
    }

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

    .section {
        padding: 85px 22px;
    }

    .section-heading {
        margin-bottom: 40px;
    }

    .about-grid {
        grid-template-columns: 1fr;
        gap: 45px;
    }

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

    .experience-header {
    align-items: start;
    flex-direction: column;
    }
    
    .experience-environment {
        text-align: left;
    }
    
    .responsibility-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .systems-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 480px) {
    .hero {
        padding-top: 45px;
    }

    .hero h1 {
        font-size: 2.8rem;
    }

    .hero-title {
        font-size: 1.05rem;
    }

    .hero-description {
        font-size: 1rem;
    }

    .hero-image-wrapper::before {
        inset: 12px -12px -12px 12px;
    }

    .about-details {
        grid-template-columns: 1fr;
    }

    .information-card {
        min-height: auto;
    }

    .responsibility-grid,
    .systems-grid {
        grid-template-columns: 1fr;
    }
    
    .responsibility-card {
        min-height: auto;
    }
}