/* ============================================================
   Enrico Kleffmann — Portfolio
   Editorial / risograph print look. Static, bilingual (DE/EN).
   Warm paper, classic serif headlines, flat punchy colours,
   hard offset shadows, marker highlights, scroll-draw motion.
   ============================================================ */

:root {
    --ink:    #1b1a17;
    --paper:  #f6f1e4;   /* warm cream paper */
    --card:   #fffdf6;
    --muted:  #5d574a;
    --line:   #e2d9c4;

    /* Flat riso palette */
    --red:    #e5482d;
    --blue:   #2b50e0;
    --yellow: #f4b21a;
    --green:  #1f9d57;

    --accent: var(--red);

    --font-display: 'Playfair Display', Georgia, 'Times New Roman', serif;
    --font-body: 'Helvetica Neue', Helvetica, Arial, sans-serif;

    --maxw: 1000px;
}

* { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }

body {
    background-color: var(--paper);
    color: var(--ink);
    font-family: var(--font-body);
    line-height: 1.7;
    padding: 0 1.5rem 5rem;
    max-width: var(--maxw);
    margin: 0 auto;
    -webkit-font-smoothing: antialiased;
}

/* Paper grain overlay */
body::after {
    content: "";
    position: fixed;
    inset: 0;
    z-index: 9999;
    pointer-events: none;
    opacity: .045;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='160' height='160'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.85' numOctaves='3'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)'/%3E%3C/svg%3E");
}

/* Scroll progress bar */
.scroll-progress {
    position: fixed;
    top: 0; left: 0;
    height: 4px; width: 0%;
    background: var(--red);
    z-index: 10000;
}

/* ---------- Typography ---------- */
h1, h2, h3 { font-family: var(--font-display); font-weight: 700; line-height: 1.06; }

h1 {
    font-size: clamp(3rem, 9vw, 6rem);
    letter-spacing: -1px;
    margin-bottom: .4rem;
}
.serif-italic { font-style: italic; font-weight: 500; }

/* Marker highlight behind a word */
.mark { position: relative; white-space: nowrap; }
.mark::before {
    content: "";
    position: absolute;
    left: -.08em; right: -.08em; bottom: .06em;
    height: .42em;
    background: var(--yellow);
    transform: rotate(-1.6deg);
    z-index: -1;
}
.mark.blue::before { background: var(--blue); opacity: .35; }
.mark.green::before { background: var(--green); opacity: .35; }

/* Editorial labels (replaces the mono look) */
.label {
    font-family: var(--font-body);
    text-transform: uppercase;
    letter-spacing: .22em;
    font-size: .72rem;
    font-weight: 700;
}

/* Links: hand-drawn underline that draws in */
a {
    color: var(--ink);
    text-decoration: none;
    background-image: linear-gradient(var(--accent), var(--accent));
    background-repeat: no-repeat;
    background-size: 0% 2px;
    background-position: 0 100%;
    transition: background-size .3s ease;
    padding-bottom: 1px;
}
a:hover { background-size: 100% 2px; }

/* ---------- Top bar ---------- */
.topbar {
    display: flex;
    justify-content: space-between;
    align-items: baseline;
    gap: 1rem;
    padding: 2rem 0 2.5rem;
    border-bottom: 2px solid var(--ink);
    margin-bottom: 3.5rem;
    flex-wrap: wrap;
}
.brand {
    font-family: var(--font-display);
    font-size: 1.5rem;
    font-weight: 900;
    letter-spacing: -.5px;
    background-image: none;
}
.topbar nav { display: flex; gap: 1.6rem; align-items: baseline; }
.topbar nav a { font-family: var(--font-body); font-size: .95rem; }

.controls { display: flex; gap: .6rem; align-items: center; }
.lang-toggle {
    font-family: var(--font-body);
    font-weight: 700;
    font-size: .8rem;
    letter-spacing: .12em;
    background: var(--ink);
    color: var(--paper);
    border: none;
    padding: .5rem .9rem;
    cursor: pointer;
    background-image: none;
    box-shadow: 3px 3px 0 var(--red);
    transition: transform .12s ease, box-shadow .12s ease;
}
.lang-toggle:hover { transform: translate(-2px,-2px); box-shadow: 5px 5px 0 var(--blue); }

/* ---------- Hero ---------- */
.hero { padding: 3rem 0 4rem; }
.hero .eyebrow {
    display: inline-flex; align-items: center; gap: .6rem;
    color: var(--ink); margin-bottom: 1.6rem;
}
.hero .eyebrow::before {
    content: ""; width: 28px; height: 3px; background: var(--red);
}
.hero h1 { max-width: 12ch; }
.hero .intro-text {
    font-family: var(--font-display);
    font-style: italic;
    font-size: clamp(1.25rem, 3vw, 1.9rem);
    color: var(--muted);
    max-width: 26ch;
    margin: 1.8rem 0 2.8rem;
    line-height: 1.4;
}

.button-group { display: flex; gap: 1.3rem; flex-wrap: wrap; }

/* Buttons: rectangular, hard offset shadow (print registration) */
.btn {
    font-family: var(--font-body);
    font-weight: 700;
    font-size: .95rem;
    letter-spacing: .03em;
    padding: .85rem 1.6rem;
    border: 2px solid var(--ink);
    background: var(--card);
    background-image: none;
    box-shadow: 5px 5px 0 var(--ink);
    transition: transform .12s ease, box-shadow .12s ease;
}
.btn:hover { transform: translate(-3px,-3px); box-shadow: 8px 8px 0 var(--accent); }
.btn.primary { background: var(--red); color: var(--paper); border-color: var(--ink); }
.btn.primary:hover { box-shadow: 8px 8px 0 var(--ink); }

/* ---------- Section heads with numbers ---------- */
.section-head { display: flex; align-items: baseline; gap: 1rem; margin: 4.5rem 0 2rem; }
.sec-num {
    font-family: var(--font-display);
    font-weight: 900;
    font-style: italic;
    font-size: 1.4rem;
    color: var(--accent);
}
.section-head h2 {
    font-size: clamp(1.7rem, 3.5vw, 2.4rem);
    position: relative;
}
.section-head h2::after {
    content: "";
    display: block;
    height: 3px;
    width: 0;
    margin-top: .3rem;
    background: var(--accent);
    transition: width .8s ease .15s;
}
.section-head.in h2::after { width: 100%; }

/* Section accent colours */
.accent-red    { --accent: var(--red); }
.accent-blue   { --accent: var(--blue); }
.accent-yellow { --accent: var(--yellow); }
.accent-green  { --accent: var(--green); }

/* ---------- Reveal on scroll ---------- */
.reveal { opacity: 0; transform: translateY(28px); transition: opacity .6s ease, transform .6s ease; }
.reveal.in { opacity: 1; transform: none; }
.reveal-left { opacity: 0; transform: translateX(-32px); transition: opacity .6s ease, transform .6s ease; }
.reveal-left.in { opacity: 1; transform: none; }
/* stagger inside grids/sections */
.in.s1 { transition-delay: .05s; }
.in.s2 { transition-delay: .12s; }
.in.s3 { transition-delay: .19s; }
.in.s4 { transition-delay: .26s; }
.in.s5 { transition-delay: .33s; }

/* ---------- CV ---------- */
.cv-header { margin-bottom: 1rem; }
.cv-sub { font-family: var(--font-display); font-style: italic; font-size: 1.15rem; color: var(--muted); }

.cv-entry {
    display: grid;
    grid-template-columns: 150px 1fr;
    gap: 1.6rem;
    padding: 1.3rem 1.5rem;
    margin-bottom: 1.1rem;
    background: var(--card);
    border: 2px solid var(--ink);
    border-left: 7px solid var(--accent);
    box-shadow: 4px 4px 0 rgba(27,26,23,.12);
    transition: transform .14s ease, box-shadow .14s ease;
}
.cv-entry:hover { transform: translate(-3px,-3px); box-shadow: 8px 8px 0 var(--accent); }
.cv-date {
    font-family: var(--font-body);
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: .1em;
    font-size: .72rem;
    color: var(--accent);
    padding-top: .35rem;
}
.cv-content h3 { font-family: var(--font-display); font-size: 1.3rem; margin-bottom: .1rem; }
.cv-company { font-style: italic; color: var(--muted); display: block; margin-bottom: .5rem; font-size: .98rem; }
.cv-content p { color: var(--muted); }

/* Skills */
.skills-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(230px, 1fr)); gap: 1.2rem; }
.skill-category {
    background: var(--card);
    border: 2px solid var(--ink);
    padding: 1.4rem;
    box-shadow: 4px 4px 0 rgba(27,26,23,.12);
    transition: transform .14s ease, box-shadow .14s ease;
}
.skill-category:hover { transform: translate(-3px,-3px); box-shadow: 8px 8px 0 var(--accent); }
.skill-category strong {
    display: block; margin-bottom: .6rem;
    font-family: var(--font-display); font-size: 1.15rem; font-weight: 700;
}
.skill-category p { color: var(--muted); font-size: .95rem; }

/* ---------- Projects ---------- */
.lead { font-family: var(--font-display); font-style: italic; color: var(--muted); font-size: 1.3rem; max-width: 34ch; margin: .8rem 0 1rem; line-height: 1.4; }

/* Featured / flagship project */
.featured-card {
    --accent: var(--blue);
    position: relative;
    background: var(--card);
    border: 2px solid var(--ink);
    box-shadow: 8px 8px 0 var(--blue);
    padding: 2.4rem 2.2rem;
    margin: 2rem 0 2.6rem;
    transition: transform .14s ease, box-shadow .14s ease;
}
.featured-card:hover { transform: translate(-4px,-4px); box-shadow: 13px 13px 0 var(--blue); }
.featured-badge {
    display: inline-block;
    background: var(--red);
    color: var(--paper);
    padding: .4rem .85rem;
    margin-bottom: 1.1rem;
    box-shadow: 3px 3px 0 var(--ink);
}
.featured-card h2 { font-size: clamp(2rem, 5.5vw, 3.1rem); line-height: 1.05; margin-bottom: .2rem; }
.featured-card p { color: var(--muted); max-width: 62ch; }
.featured-link { font-weight: 700; font-size: 1.02rem; }

.project-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(290px, 1fr)); gap: 1.6rem; }
.project-card {
    background: var(--card);
    border: 2px solid var(--ink);
    padding: 1.8rem;
    box-shadow: 5px 5px 0 rgba(27,26,23,.14);
    transition: transform .14s ease, box-shadow .14s ease;
}
.project-card:nth-child(4n+1) { --accent: var(--red); }
.project-card:nth-child(4n+2) { --accent: var(--blue); }
.project-card:nth-child(4n+3) { --accent: var(--green); }
.project-card:nth-child(4n+4) { --accent: var(--yellow); }
.project-card:hover { transform: translate(-4px,-4px); box-shadow: 10px 10px 0 var(--accent); }
.project-card h3 { font-size: 1.5rem; margin-bottom: .1rem; }
.project-meta {
    font-family: var(--font-body); font-weight: 700; text-transform: uppercase;
    letter-spacing: .1em; font-size: .72rem; color: var(--accent); margin: .3rem 0 1rem;
}
.project-card p { color: var(--muted); }
.tags { display: flex; flex-wrap: wrap; gap: .55rem; margin-top: 1.3rem; }
.tag {
    font-size: .74rem; font-weight: 700;
    padding: .25rem .65rem;
    background: var(--paper);
    border: 1.5px solid var(--ink);
    box-shadow: 2px 2px 0 var(--ink);
}
.tags .tag:nth-child(2n) { transform: rotate(-1.5deg); }
.tags .tag:nth-child(3n) { transform: rotate(1.5deg); }
.project-links { margin-top: 1.3rem; }
.project-links a { font-weight: 700; font-size: .85rem; }

/* ---------- Contact ---------- */
.contact-container { max-width: 620px; }
.form-group { margin-bottom: 1.4rem; }
label { display: block; margin-bottom: .5rem; font-weight: 700; text-transform: uppercase; letter-spacing: .1em; font-size: .74rem; }
input, textarea {
    width: 100%;
    padding: .9rem 1rem;
    border: 2px solid var(--ink);
    background: var(--card);
    color: var(--ink);
    font-family: var(--font-body);
    font-size: 1rem;
    box-shadow: 4px 4px 0 rgba(27,26,23,.1);
    transition: box-shadow .14s ease, transform .14s ease;
}
input:focus, textarea:focus { outline: none; box-shadow: 5px 5px 0 var(--blue); transform: translate(-1px,-1px); }
textarea { resize: vertical; min-height: 160px; }
button[type="submit"] {
    background: var(--red);
    color: var(--paper);
    border: 2px solid var(--ink);
    padding: .9rem 1.8rem;
    font-family: var(--font-body);
    font-weight: 700;
    font-size: .95rem;
    letter-spacing: .03em;
    cursor: pointer;
    box-shadow: 5px 5px 0 var(--ink);
    transition: transform .12s ease, box-shadow .12s ease;
}
button[type="submit"]:hover { transform: translate(-3px,-3px); box-shadow: 8px 8px 0 var(--blue); }

/* ---------- Socials ---------- */
.socials { display: flex; gap: 1rem; margin-top: 2.4rem; flex-wrap: wrap; }
.social-link {
    display: inline-flex; align-items: center; gap: .5rem;
    font-weight: 700; font-size: .9rem;
    padding: .55rem 1rem;
    border: 2px solid var(--ink);
    background: var(--card);
    background-image: none;
    box-shadow: 3px 3px 0 var(--ink);
    transition: transform .12s ease, box-shadow .12s ease;
}
.social-link:hover { transform: translate(-3px,-3px); }
.social-link:nth-child(1):hover { box-shadow: 6px 6px 0 var(--ink); }
.social-link:nth-child(2):hover { box-shadow: 6px 6px 0 var(--blue); }
.social-link:nth-child(3):hover { box-shadow: 6px 6px 0 var(--red); }
.social-link svg { width: 18px; height: 18px; fill: currentColor; }

/* ---------- Footer ---------- */
footer {
    margin-top: 5rem;
    padding-top: 1.6rem;
    border-top: 2px solid var(--ink);
    font-size: .82rem;
    color: var(--muted);
    display: flex;
    justify-content: space-between;
    flex-wrap: wrap;
    gap: .5rem;
}
footer .label { color: var(--ink); }

/* ---------- Mobile ---------- */
@media (max-width: 640px) {
    .cv-entry { grid-template-columns: 1fr; gap: .4rem; }
    .button-group { flex-direction: column; align-items: stretch; }
    .btn { text-align: center; }
    .topbar { padding: 1.4rem 0 1.6rem; }
    .topbar nav { gap: 1.1rem; }
}

@media (prefers-reduced-motion: reduce) {
    *, *::before, *::after { animation: none !important; transition: none !important; }
    .reveal, .reveal-left { opacity: 1; transform: none; }
    .section-head h2::after { width: 100%; }
}