:root {
    --color-bg: #0E0F11;
    --color-bg-alt: #1A1C20;
    --color-text: #F5F5F5;
    --color-muted: #B0B3BA;
    --color-accent: #2ECC71;
    --color-accent-soft: #42e88a;
    --color-navy: #0D1B2A;
    --color-border: #2F3238;

    --radius-md: 12px;
    --radius-lg: 16px;

    --transition-fast: 0.18s ease-out;
}

*,
*::before,
*::after {
    box-sizing: border-box;
}

html, body {
    margin: 0;
    padding: 0;
}

body {
    font-family: "Roboto Mono", ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, "Liberation Mono", "Courier New", monospace;
    background-color: var(--color-bg);
    color: var(--color-text);
    line-height: 1.6;
}

/* Layout helpers */

.container {
    width: 100%;
    max-width: 1120px;
    margin: 0 auto;
    padding: 0 1.5rem;
}

.section {
    padding: 4.5rem 0;
}

.section-alt {
    background-color: var(--color-bg-alt);
}

.section-title {
    font-size: 2rem;
    margin-bottom: 0.75rem;
}

.section-intro {
    max-width: 640px;
    color: var(--color-muted);
    margin-bottom: 2.5rem;
}

/* Header */

.site-header {
    position: sticky;
    top: 0;
    z-index: 100;
    background: linear-gradient(to bottom, #050608 0%, rgba(5, 6, 8, 0.92) 70%, transparent 100%);
    border-bottom: 1px solid rgba(47, 50, 56, 0.7);
    backdrop-filter: blur(12px);
}

.header-inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 64px;
}

.logo {
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.logo-mark {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 32px;
    height: 32px;
    border-radius: var(--radius-md);
    background: var(--color-navy);
    color: var(--color-accent);
    font-weight: 600;
    font-size: 0.9rem;
}

.logo-text {
    font-weight: 500;
    letter-spacing: 0.05em;
    font-size: 0.95rem;
}

.main-nav {
    display: flex;
    gap: 1.5rem;
}

.nav-link {
    text-decoration: none;
    color: var(--color-muted);
    font-size: 0.9rem;
    transition: color var(--transition-fast);
}

.nav-link:hover,
.nav-link:focus {
    color: var(--color-accent);
}

/* Hero */

.hero {
    padding-top: 5rem;
    padding-bottom: 5rem;
}

.hero-inner {
    display: grid;
    grid-template-columns: minmax(0, 1.4fr) minmax(0, 1fr);
    gap: 3rem;
    align-items: center;
}

.hero-label {
    font-size: 0.9rem;
    text-transform: uppercase;
    letter-spacing: 0.12em;
    color: var(--color-accent);
    margin-bottom: 0.75rem;
}

.hero-title {
    font-size: 2.6rem;
    line-height: 1.2;
    margin: 0 0 1rem;
}

.hero-subtitle {
    color: var(--color-muted);
    max-width: 36rem;
    margin-bottom: 2rem;
}

.hero-actions {
    display: flex;
    flex-wrap: wrap;
    gap: 1rem;
}

/* Buttons */

.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-height: 44px;
    padding: 0.5rem 1.5rem;
    border-radius: var(--radius-md);
    border: 1px solid transparent;
    font-size: 0.95rem;
    text-decoration: none;
    cursor: pointer;
    transition: transform var(--transition-fast), box-shadow var(--transition-fast), background-color var(--transition-fast), border-color var(--transition-fast), color var(--transition-fast);
}

.btn-primary {
    background-color: var(--color-accent);
    color: #000000;
    font-weight: 500;
}

.btn-primary:hover {
    background-color: var(--color-accent-soft);
    transform: translateY(-1px);
    box-shadow: 0 0 0 1px rgba(46, 204, 113, 0.4), 0 10px 30px rgba(0, 0, 0, 0.45);
}

.btn-outline {
    background-color: transparent;
    color: var(--color-accent);
    border-color: var(--color-border);
}

.btn-outline:hover {
    border-color: var(--color-accent);
    background-color: rgba(46, 204, 113, 0.06);
}

/* Hero showcase */

.hero-showcase {
    display: flex;
    justify-content: flex-end;
}

.hero-card-link {
    text-decoration: none;
    color: inherit;
    display: block;
}

.hero-card-image {
    width: 100%;
    height: 180px;
    object-fit: cover;
    border-radius: var(--radius-md);
    margin-bottom: 1rem;
}

.hero-card {
    background: radial-gradient(circle at top left, rgba(46, 204, 113, 0.1), transparent 55%),
                radial-gradient(circle at bottom right, rgba(13, 27, 42, 0.9), #050608);
    border-radius: var(--radius-lg);
    padding: 1.75rem;
    border: 1px solid rgba(47, 50, 56, 0.9);
    box-shadow: 0 14px 40px rgba(0, 0, 0, 0.7);
    max-width: 340px;
}

.hero-card-label {
    font-size: 0.8rem;
    text-transform: uppercase;
    letter-spacing: 0.16em;
    color: var(--color-muted);
    margin-bottom: 0.9rem;
}

.hero-card-title {
    margin: 0 0 0.75rem;
    font-size: 1.3rem;
}

.hero-card-text {
    margin: 0;
    color: var(--color-muted);
}

/* Projects */

.projects-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
    gap: 1.75rem;
}

.project-card {
    border-radius: var(--radius-lg);
    background-color: #14161b;
    border: 1px solid var(--color-border);
    overflow: hidden;
    display: flex;
    flex-direction: column;
    transition: transform var(--transition-fast), box-shadow var(--transition-fast), border-color var(--transition-fast);
}

.project-card:hover {
    transform: translateY(-2px);
    border-color: var(--color-accent);
    box-shadow: 0 14px 35px rgba(0, 0, 0, 0.85);
}

.project-card-link {
    text-decoration: none;
    color: inherit;
    display: block;
}

.project-thumb img {
    display: block;
    width: 100%;
    height: 170px;
    object-fit: cover;
}

.project-body {
    padding: 1.25rem 1.4rem 1.4rem;
}

.project-title {
    margin: 0 0 0.3rem;
    font-size: 1.1rem;
}

.project-text {
    margin: 0 0 0.75rem;
    color: var(--color-muted);
    font-size: 0.92rem;
}

.project-meta {
    margin: 0;
    font-size: 0.8rem;
    color: var(--color-accent);
}

/* About */

.about-grid {
    display: grid;
    grid-template-columns: minmax(0, 1.5fr) minmax(0, 1fr);
    gap: 2.5rem;
    align-items: start;
}

.about-aside {
    display: flex;
    justify-content: flex-end;
}

.about-card {
    background-color: #14161b;
    border-radius: var(--radius-lg);
    border: 1px solid var(--color-border);
    padding: 1.5rem;
}

.about-card-title {
    margin-top: 0;
    margin-bottom: 0.75rem;
}

.about-list {
    list-style: none;
    padding: 0;
    margin: 0;
}

.about-list li {
    font-size: 0.92rem;
    color: var(--color-muted);
    margin-bottom: 0.35rem;
}

/* Contact */

.contact-inner {
    max-width: 640px;
}

.contact-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
    gap: 1.5rem;
}

.contact-label {
    font-size: 0.85rem;
    text-transform: uppercase;
    letter-spacing: 0.16em;
    color: var(--color-muted);
    margin-bottom: 0.3rem;
}

.contact-value a {
    color: var(--color-accent);
    text-decoration: none;
}

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

/* Footer */

.site-footer {
    border-top: 1px solid var(--color-border);
    padding: 1.5rem 0;
    background-color: #050608;
}

.footer-inner {
    text-align: center;
    font-size: 0.85rem;
    color: var(--color-muted);
}

/* Responsief */

@media (max-width: 840px) {
    .hero-inner {
        grid-template-columns: minmax(0, 1fr);
    }

    .hero-showcase {
        justify-content: flex-start;
    }

    .about-grid {
        grid-template-columns: minmax(0, 1fr);
    }

    .header-inner {
        gap: 1rem;
    }

    .main-nav {
        gap: 1rem;
        font-size: 0.85rem;
    }
}

@media (max-width: 600px) {
    .hero-title {
        font-size: 2.1rem;
    }

    .header-inner {
        flex-direction: column;
        align-items: flex-start;
        height: auto;
        padding-top: 0.75rem;
        padding-bottom: 0.75rem;
        gap: 0.5rem;
    }

    .main-nav {
        flex-wrap: wrap;
    }

    .section {
        padding: 3.5rem 0;
    }
}

.cv-section {
    padding-top: 4rem;
    padding-bottom: 4rem;
}

.cv-grid {
    display: grid;
    grid-template-columns: 300px 1fr;
    gap: 2.5rem;
}

.cv-aside {
    display: flex;
    flex-direction: column;
    gap: 1.75rem;
}

.cv-main {
    display: flex;
    flex-direction: column;
    gap: 2.75rem;
}

/* Kaarten in de CV-sectie met eigen kleur */
.cv-card,
.cv-photo-card,
.cv-block {
    background: linear-gradient(
        to bottom right,
        rgba(13, 27, 42, 0.95),
        rgba(13, 27, 42, 0.88)
    );
    border: 1px solid var(--color-border);
    border-radius: var(--radius-lg);
    padding: 1.6rem;
}

/* Foto */
.cv-photo-card img {
    display: block;
    width: 100%;
    border-radius: var(--radius-lg);
}

/* Titels */
.cv-header h1 {
    margin: 0;
    font-size: 2.4rem;
}

.cv-header h2 {
    margin: 0.2rem 0 0;
    font-size: 1.15rem;
    color: var(--color-accent);
    font-weight: 400;
}

.cv-card-title,
.cv-section-title {
    margin: 0 0 0.8rem;
    font-size: 1.25rem;
}

.cv-subtitle {
    margin: 1.2rem 0 0.5rem;
    font-size: 1rem;
    color: var(--color-accent);
}

/* Lijsten */
.cv-list {
    list-style: none;
    margin: 0;
    padding: 0;
}

.cv-list li {
    margin-bottom: 0.35rem;
    font-size: 0.95rem;
    color: var(--color-muted);
}

/* Tekstblokken */
.cv-block p {
    margin-bottom: 1.3rem;
    color: var(--color-text);
    font-size: 1rem;
    line-height: 1.6;
}

/* Responsief */
@media (max-width: 840px) {
    .cv-grid {
        grid-template-columns: 1fr;
    }
}


.feature-list {
    list-style: none;
    padding: 0;
}

.feature-list li {
    margin-bottom: 1.8rem;
}

.feature-img {
    display: block;
    width: 100%;
    max-width: 520px;
    margin-top: 0.6rem;
    border: 1px solid #333;
    border-radius: 10px;
}