/* ============================================================
   marcus-hoja.de — Design System
   Editorial · technisch-präzise · warm
   ============================================================ */

:root {
  /* Surfaces */
  --paper:    #f4f2ec;   /* warm off-white */
  --paper-2:  #ece9e0;   /* slightly deeper — alt sections / cards */
  --paper-3:  #e4e0d4;
  --ink-on-dark: #f4f2ec;

  /* Ink */
  --ink:      #1b1a15;
  --ink-soft: #5a574c;
  --ink-mute: #8a8678;

  /* Lines */
  --line:      rgba(27, 26, 21, 0.14);
  --line-soft: rgba(27, 26, 21, 0.08);

  /* Accent — refined blue */
  --accent:      oklch(0.52 0.12 252);
  --accent-soft: oklch(0.52 0.12 252 / 0.10);
  --accent-line: oklch(0.52 0.12 252 / 0.30);

  /* Dark surface (contact / footer) */
  --dark:    #16150f;
  --dark-2:  #1f1d15;

  /* Type */
  --font-display: "Bricolage Grotesque", Georgia, serif;
  --font-body:    "Instrument Sans", system-ui, sans-serif;
  --font-mono:    "JetBrains Mono", ui-monospace, monospace;

  /* Rhythm */
  --maxw: 1180px;
  --gutter: clamp(20px, 5vw, 64px);
  --section-y: clamp(72px, 11vw, 150px);
}

/* ---------- Reset ---------- */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { -webkit-text-size-adjust: 100%; scroll-behavior: smooth; }
@media (prefers-reduced-motion: reduce) { html { scroll-behavior: auto; } }

body {
  font-family: var(--font-body);
  background: var(--paper);
  color: var(--ink);
  line-height: 1.6;
  font-size: 18px;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
  overflow-x: hidden;
}

a { color: inherit; text-decoration: none; }
img, svg { display: block; max-width: 100%; }
::selection { background: var(--accent); color: var(--paper); }

/* ---------- Layout primitives ---------- */
.wrap {
  width: 100%;
  max-width: var(--maxw);
  margin-inline: auto;
  padding-inline: var(--gutter);
}

.section { padding-block: var(--section-y); position: relative; }
.section + .section { border-top: 1px solid var(--line-soft); }

/* Section header / eyebrow */
.eyebrow {
  display: flex;
  align-items: baseline;
  gap: 14px;
  font-family: var(--font-mono);
  font-size: 12.5px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--ink-mute);
  margin-bottom: clamp(28px, 4vw, 48px);
}
.eyebrow .num { color: var(--accent); font-weight: 600; }
.eyebrow .rule { flex: 1; height: 1px; background: var(--line); align-self: center; }

/* ---------- Type scale ---------- */
.display {
  font-family: var(--font-display);
  font-weight: 600;
  line-height: 1.04;
  letter-spacing: -0.02em;
  font-size: clamp(2.3rem, 5vw, 4rem);
  text-wrap: balance;
}
.h2 {
  font-family: var(--font-display);
  font-weight: 600;
  line-height: 1.06;
  letter-spacing: -0.015em;
  font-size: clamp(1.9rem, 3.6vw, 3rem);
  text-wrap: balance;
}
.h3 {
  font-family: var(--font-display);
  font-weight: 600;
  line-height: 1.12;
  letter-spacing: -0.01em;
  font-size: clamp(1.35rem, 2vw, 1.7rem);
}
.lead {
  font-size: clamp(1.05rem, 1.5vw, 1.3rem);
  color: var(--ink-soft);
  line-height: 1.55;
  text-wrap: pretty;
}
.body-text { color: var(--ink-soft); text-wrap: pretty; }
.body-text p + p { margin-top: 1em; }
.body-text strong { color: var(--ink); font-weight: 600; }
.body-text a { color: var(--accent); text-decoration: underline; text-underline-offset: 3px; }

/* ---------- Nav ---------- */
.nav {
  position: sticky; top: 0; z-index: 50;
  background: color-mix(in srgb, var(--paper) 82%, transparent);
  backdrop-filter: blur(12px) saturate(1.3);
  -webkit-backdrop-filter: blur(12px) saturate(1.3);
  border-bottom: 1px solid transparent;
  transition: border-color .3s ease, background .3s ease;
}
.nav.scrolled { border-bottom-color: var(--line); }
.nav__inner {
  display: flex; align-items: center; justify-content: space-between;
  height: 68px;
}
.brand {
  font-family: var(--font-mono);
  font-size: 14px; font-weight: 600;
  letter-spacing: 0.02em;
  display: flex; align-items: center; gap: 9px;
}
.brand .dot { width: 9px; height: 9px; background: var(--accent); border-radius: 50%; flex: none; }
.nav__links { display: flex; align-items: center; gap: clamp(18px, 2.4vw, 34px); }
.nav__links a {
  font-family: var(--font-mono);
  font-size: 12.5px; letter-spacing: 0.06em;
  color: var(--ink-soft);
  text-transform: uppercase;
  transition: color .2s ease;
  position: relative;
}
.nav__links a:hover { color: var(--ink); }
.nav__links a.nav-cta { display: none; }
@media (max-width: 760px) {
  .nav__links a:not(.nav-cta) { display: none; }
  .nav__links a.nav-cta { display: inline-flex; }
}

/* ---------- Buttons ---------- */
.btn {
  display: inline-flex; align-items: center; gap: 10px;
  font-family: var(--font-mono);
  font-size: 13px; letter-spacing: 0.04em;
  padding: 13px 22px;
  border-radius: 2px;
  border: 1px solid var(--ink);
  transition: transform .15s ease, background .2s ease, color .2s ease, border-color .2s ease;
  cursor: pointer; background: transparent; color: var(--ink);
}
.btn .arrow { transition: transform .2s ease; }
.btn:hover .arrow { transform: translateX(4px); }
.btn--solid { background: var(--ink); color: var(--paper); }
.btn--solid:hover { background: var(--accent); border-color: var(--accent); }
.btn--ghost:hover { border-color: var(--accent); color: var(--accent); }
.btn--lg { padding: 16px 28px; font-size: 14px; }

/* ---------- Hero ---------- */
.hero { padding-top: clamp(48px, 7vw, 90px); }
.hero__grid {
  display: grid;
  grid-template-columns: 1.55fr 1fr;
  gap: clamp(32px, 5vw, 72px);
  align-items: end;
}
.hero__kicker {
  font-family: var(--font-mono);
  font-size: 13px; letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 26px;
  display: inline-flex; align-items: center; gap: 12px;
}
.hero__kicker::before { content: ""; width: 28px; height: 1px; background: var(--accent-line); }
.hero__lead { margin-top: clamp(24px, 3vw, 36px); max-width: 46ch; }
.hero__actions { display: flex; flex-wrap: wrap; gap: 14px; margin-top: clamp(30px, 4vw, 44px); }
.hero__tags { display: flex; flex-wrap: wrap; gap: 8px; margin-top: clamp(34px, 4vw, 50px); }
.tag {
  font-family: var(--font-mono);
  font-size: 12px; letter-spacing: 0.03em;
  padding: 7px 13px;
  border: 1px solid var(--line);
  border-radius: 100px;
  color: var(--ink-soft);
  background: color-mix(in srgb, var(--paper-2) 60%, transparent);
}

/* Portrait placeholder */
.portrait {
  aspect-ratio: 4 / 5;
  border: 1px solid var(--line);
  border-radius: 3px;
  position: relative;
  overflow: hidden;
  background:
    repeating-linear-gradient(135deg,
      var(--paper-2) 0 11px,
      var(--paper-3) 11px 22px);
}
.portrait__label {
  display: none;
  position: absolute; inset: auto 0 0 0;
  align-items: center; justify-content: space-between;
  padding: 12px 14px;
  font-family: var(--font-mono);
  font-size: 11px; letter-spacing: 0.06em;
  color: var(--ink-mute);
  background: color-mix(in srgb, var(--paper) 78%, transparent);
  backdrop-filter: blur(3px);
  border-top: 1px solid var(--line);
}
.portrait__corner {
  position: absolute; top: 12px; left: 12px;
  font-family: var(--font-mono); font-size: 11px;
  color: var(--ink-mute); letter-spacing: 0.08em;
}
/* Real photo — rendered black & white */
.portrait--photo { background: var(--ink); }
.portrait--photo img {
  position: absolute; inset: 0;
  width: 100%; height: 100%;
  object-fit: cover;
  object-position: 50% 22%;
  filter: grayscale(1) contrast(1.04) brightness(1.02);
}
@media (max-width: 860px) {
  .hero__grid { grid-template-columns: 1fr; align-items: stretch; }
  .hero__media { max-width: 340px; }
}

/* ---------- About ---------- */
.about__grid {
  display: grid;
  grid-template-columns: 1.4fr 1fr;
  gap: clamp(32px, 5vw, 80px);
  align-items: start;
}
.about__bio .h2 { margin-bottom: 28px; }
.credentials {
  border: 1px solid var(--line);
  border-radius: 3px;
  background: var(--paper-2);
  padding: clamp(22px, 3vw, 32px);
}
.credentials__title {
  font-family: var(--font-mono);
  font-size: 11.5px; letter-spacing: 0.12em; text-transform: uppercase;
  color: var(--ink-mute);
  margin-bottom: 18px;
  padding-bottom: 14px;
  border-bottom: 1px solid var(--line);
}
.credentials ul { list-style: none; display: flex; flex-direction: column; gap: 14px; }
.credentials li {
  display: flex; gap: 13px; align-items: flex-start;
  font-size: 15.5px; line-height: 1.45;
}
.credentials li::before {
  content: ""; flex: none; margin-top: 9px;
  width: 6px; height: 6px; background: var(--accent);
  transform: rotate(45deg);
}
@media (max-width: 760px) { .about__grid { grid-template-columns: 1fr; } }

/* ---------- Skills ---------- */
.skills__grid {
  display: grid; grid-template-columns: repeat(3, 1fr);
  gap: 1px; background: var(--line);
  border: 1px solid var(--line); border-radius: 3px; overflow: hidden;
}
.skill {
  background: var(--paper);
  padding: clamp(26px, 3vw, 40px) clamp(24px, 2.6vw, 34px);
  transition: background .3s ease;
}
.skill:hover { background: var(--paper-2); }
.skill__num {
  font-family: var(--font-mono);
  font-size: 12px; color: var(--accent); letter-spacing: 0.08em;
  margin-bottom: 22px;
}
.skill .h3 { margin-bottom: 14px; }
.skill p { font-size: 15.5px; color: var(--ink-soft); line-height: 1.55; text-wrap: pretty; }
@media (max-width: 860px) { .skills__grid { grid-template-columns: 1fr; } }

/* ---------- Services ---------- */
.services__list { border-top: 1px solid var(--line); }
.service {
  display: grid;
  grid-template-columns: 56px 1fr 1.2fr;
  gap: clamp(16px, 3vw, 48px);
  align-items: baseline;
  padding: clamp(26px, 3.4vw, 44px) 0;
  border-bottom: 1px solid var(--line);
  transition: padding-left .25s ease;
}
.service:hover { padding-left: 12px; }
.service__num { font-family: var(--font-mono); font-size: 13px; color: var(--accent); }
.service__title { font-family: var(--font-display); font-weight: 600; font-size: clamp(1.3rem, 2vw, 1.65rem); letter-spacing: -0.01em; }
.service__desc { color: var(--ink-soft); font-size: 16px; line-height: 1.55; text-wrap: pretty; }
@media (max-width: 760px) {
  .service { grid-template-columns: 32px 1fr; }
  .service__desc { grid-column: 2; }
}

/* ---------- Projects ---------- */
.projects__head {
  display: flex; flex-wrap: wrap; align-items: flex-end; justify-content: space-between;
  gap: 18px 32px; margin-bottom: clamp(32px, 4vw, 48px);
}
.proj__bloglink, .proj__more {
  font-family: var(--font-mono); font-size: 13px; letter-spacing: 0.03em;
  color: var(--accent); display: inline-flex; align-items: center; gap: 8px;
  white-space: nowrap;
}
.proj__bloglink span, .proj__more span { transition: transform .2s ease; }
.proj__bloglink:hover span, .proj__more:hover span { transform: translateX(4px); }
.proj__bloglink { border-bottom: 1px solid var(--accent-line); padding-bottom: 4px; }
.proj__more { margin-top: 18px; }
.proj-card .proj__more { margin-top: auto; padding-top: 20px; }
.proj-feature__body .proj__more { margin-top: auto; padding-top: 22px; }

.projects__feature {
  display: grid; grid-template-columns: 1.15fr 1fr;
  border: 1px solid var(--line); border-radius: 3px; overflow: hidden;
  margin-bottom: 1px;
}
.proj-visual {
  min-height: 280px; position: relative;
  background:
    repeating-linear-gradient(135deg,
      var(--paper-2) 0 13px, var(--paper-3) 13px 26px);
  border-right: 1px solid var(--line);
}
.proj-visual__img { position: absolute; inset: 0; width: 100%; height: 100%; object-fit: cover; }
.proj-visual__slot { position: absolute; inset: 0; width: 100%; height: 100%; display: block; }
.proj-visual--empty { background: var(--paper-2); }
.proj-visual__tag {
  position: absolute; top: 14px; left: 14px;
  font-family: var(--font-mono); font-size: 11px; letter-spacing: 0.06em;
  color: var(--ink-mute);
}
.proj-feature__body { padding: clamp(28px, 3.4vw, 48px); display: flex; flex-direction: column; }
.proj__meta {
  display: flex; flex-wrap: wrap; gap: 10px 18px; align-items: center;
  font-family: var(--font-mono); font-size: 12px; color: var(--accent);
  letter-spacing: 0.05em; margin-bottom: 18px;
}
.proj__meta .stack { color: var(--ink-mute); }
.proj-feature__body .h3 { font-size: clamp(1.5rem, 2.4vw, 2rem); margin-bottom: 16px; }
.proj-feature__body p { color: var(--ink-soft); font-size: 16px; line-height: 1.6; text-wrap: pretty; }

.projects__grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(min(100%, 290px), 1fr)); gap: 1px; }
.proj-card {
  border: 1px solid var(--line); border-radius: 3px;
  padding: clamp(24px, 3vw, 34px);
  background: var(--paper);
  display: flex; flex-direction: column;
  transition: background .3s ease, transform .25s ease;
}
.proj-card:hover { background: var(--paper-2); }
.proj-card .h3 { margin-bottom: 12px; }
.proj-card p { color: var(--ink-soft); font-size: 15px; line-height: 1.55; text-wrap: pretty; }
.proj-card--media { overflow: hidden; padding-top: 0; }
.proj-card__image {
  width: calc(100% + 68px);
  max-width: none;
  height: 210px;
  object-fit: cover;
  margin: 0 -34px clamp(22px, 3vw, 30px);
  border-bottom: 1px solid var(--line);
  filter: grayscale(1) contrast(1.04);
}
@media (max-width: 820px) {
  .projects__feature, .projects__grid { grid-template-columns: 1fr; }
  .proj-visual { border-right: none; border-bottom: 1px solid var(--line); }
}

/* ---------- Detail pages ---------- */
.detail-shell { min-height: 70vh; }
.detail { padding-block: clamp(48px, 7vw, 96px) clamp(80px, 10vw, 140px); }
.detail-back {
  display: inline-flex;
  margin-bottom: clamp(28px, 4vw, 48px);
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing: .04em;
  color: var(--accent);
  border-bottom: 1px solid var(--accent-line);
  padding-bottom: 4px;
}
.detail-hero {
  display: grid;
  grid-template-columns: minmax(0, 1.05fr) minmax(280px, .8fr);
  gap: clamp(28px, 5vw, 70px);
  align-items: end;
  margin-bottom: clamp(44px, 6vw, 84px);
}
.detail-kicker {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .12em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 22px;
}
.detail-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 26px;
}
.detail-meta span {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .03em;
  color: var(--ink-soft);
  border: 1px solid var(--line);
  border-radius: 999px;
  padding: 7px 12px;
  background: var(--paper-2);
}
.detail-hero__image {
  width: 100%;
  aspect-ratio: 4 / 3;
  object-fit: cover;
  border: 1px solid var(--line);
  border-radius: 3px;
  filter: grayscale(1) contrast(1.04);
}
.detail-content {
  max-width: 820px;
  color: var(--ink-soft);
  font-size: clamp(1rem, 1.35vw, 1.14rem);
  line-height: 1.75;
}
.detail-content p + p,
.detail-content ul + p,
.detail-content p + ul { margin-top: 1.1em; }
.detail-content h2 {
  font-family: var(--font-display);
  font-size: clamp(1.45rem, 2.4vw, 2rem);
  line-height: 1.12;
  color: var(--ink);
  margin-top: clamp(34px, 5vw, 58px);
  margin-bottom: 16px;
}
.detail-content ul {
  list-style: none;
  display: grid;
  gap: 11px;
  margin-top: 10px;
}
.detail-content li {
  position: relative;
  padding-left: 24px;
}
.detail-content li::before {
  content: "";
  position: absolute;
  left: 0;
  top: .78em;
  width: 7px;
  height: 7px;
  background: var(--accent);
  transform: rotate(45deg);
}
.detail-content a { color: var(--accent); text-decoration: underline; text-underline-offset: 3px; }
.detail-gallery {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(min(100%, 220px), 1fr));
  gap: 14px;
  margin-top: 20px;
  max-width: 1080px;
}
.detail-gallery a {
  display: block;
  border: 1px solid var(--line);
  background: var(--paper-2);
  border-radius: 3px;
  overflow: hidden;
}
.detail-gallery img {
  width: 100%;
  aspect-ratio: 3 / 4;
  object-fit: cover;
  filter: grayscale(1) contrast(1.04);
  transition: transform .25s ease;
}
.detail-gallery a:hover img { transform: scale(1.025); }
.detail-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  margin-top: clamp(38px, 5vw, 64px);
}
.detail-error {
  padding-block: 100px;
  color: var(--ink-soft);
  font-family: var(--font-mono);
  font-size: 14px;
}
@media (max-width: 820px) {
  .detail-hero { grid-template-columns: 1fr; align-items: start; }
  .detail-hero__image { aspect-ratio: 16 / 9; }
}

/* ---------- Contact ---------- */
.contact { background: var(--dark); color: var(--ink-on-dark); }
.contact .eyebrow { color: color-mix(in srgb, var(--ink-on-dark) 60%, transparent); }
.contact .eyebrow .rule { background: rgba(244,242,236,0.16); }
.contact__grid { display: grid; grid-template-columns: 1.3fr 1fr; gap: clamp(36px, 5vw, 80px); align-items: end; }
.contact__headline {
  font-family: var(--font-display); font-weight: 600;
  font-size: clamp(2rem, 4.4vw, 3.6rem); line-height: 1.04; letter-spacing: -0.02em;
  text-wrap: balance;
}
.contact__intro { color: color-mix(in srgb, var(--ink-on-dark) 72%, transparent); margin-top: 24px; max-width: 44ch; text-wrap: pretty; }
.contact__card { display: flex; flex-direction: column; gap: 22px; }
.contact__mail {
  font-family: var(--font-display); font-size: clamp(1.3rem, 2.4vw, 1.9rem);
  letter-spacing: -0.01em; display: inline-flex; align-items: center; gap: 12px;
  border-bottom: 1px solid rgba(244,242,236,0.25); padding-bottom: 12px;
  transition: border-color .25s ease, color .25s ease;
  width: fit-content;
}
.contact__mail:hover { color: oklch(0.78 0.1 252); border-color: oklch(0.78 0.1 252); }
.contact__loc { font-family: var(--font-mono); font-size: 13px; letter-spacing: 0.05em; color: color-mix(in srgb, var(--ink-on-dark) 60%, transparent); }
@media (max-width: 760px) { .contact__grid { grid-template-columns: 1fr; align-items: start; } }

/* ---------- Footer ---------- */
.footer { background: var(--dark); color: color-mix(in srgb, var(--ink-on-dark) 55%, transparent); border-top: 1px solid var(--dark-2); }
.footer__inner { display: flex; flex-wrap: wrap; justify-content: space-between; gap: 18px; padding-block: 34px; font-family: var(--font-mono); font-size: 12px; letter-spacing: 0.04em; }
.footer__inner a { transition: color .2s ease; }
.footer__inner a:hover { color: var(--ink-on-dark); }
.footer__links { display: flex; gap: 22px; }

/* ---------- Scroll reveal ---------- */
.reveal { opacity: 0; transform: translateY(22px); transition: opacity .7s cubic-bezier(.2,.7,.2,1), transform .7s cubic-bezier(.2,.7,.2,1); }
.reveal.in { opacity: 1; transform: none; }
.reveal[data-d="1"] { transition-delay: .08s; }
.reveal[data-d="2"] { transition-delay: .16s; }
.reveal[data-d="3"] { transition-delay: .24s; }
@media (prefers-reduced-motion: reduce) {
  .reveal { opacity: 1; transform: none; transition: none; }
}