/* ============================================================
   style.css — Oliver König Architekt · Murcia
   Shared stylesheet for all pages
   ============================================================ */

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

:root {
  --color-dark:    #1c1c1c;
  --color-mid:     #3a3a3a;
  --color-light:   #f7f5f2;
  --color-white:   #ffffff;
  --color-accent:  #9a7c4f;
  --color-accent2: #c4a46b;
  --color-border:  #e0dcd6;
  --font-serif:    'Playfair Display', Georgia, serif;
  --font-sans:     'Inter', system-ui, sans-serif;
  --nav-h:         68px;
  --max-w:         1200px;
  --section-pad:   80px 24px;
}

html { scroll-behavior: smooth; }
body {
  font-family: var(--font-sans);
  color: var(--color-dark);
  background: var(--color-white);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}
img { max-width: 100%; height: auto; display: block; }
a { color: inherit; text-decoration: none; }

/* ── NAV ── */
.nav {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 1000;
  height: var(--nav-h);
  background: rgba(255,255,255,0.97);
  backdrop-filter: blur(8px);
  border-bottom: 1px solid var(--color-border);
  display: flex;
  align-items: center;
}
.nav__inner {
  max-width: var(--max-w);
  width: 100%;
  margin: 0 auto;
  padding: 0 24px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
}
.nav__logo { flex-shrink: 0; }
.nav__logo img {
  height: 34px;
  width: auto;
  filter: brightness(0) opacity(0.82);
}
.nav__logo-text {
  font-family: var(--font-sans);
  font-size: 0.7rem;
  font-weight: 600;
  color: var(--color-dark);
  letter-spacing: 0.2em;
  text-transform: uppercase;
  line-height: 1.25;
}
.nav__logo-text span {
  display: block;
  font-family: var(--font-sans);
  font-size: 0.55rem;
  font-weight: 400;
  color: var(--color-mid);
  letter-spacing: 0.22em;
  text-transform: uppercase;
  margin-top: 2px;
}
.nav__links {
  display: flex;
  align-items: center;
  gap: 24px;
  list-style: none;
}
.nav__links a {
  font-size: 0.8rem;
  font-weight: 500;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--color-mid);
  transition: color 0.2s;
  white-space: nowrap;
}
.nav__links a:hover,
.nav__links a.active { color: var(--color-accent); }

.lang-switcher {
  display: flex;
  align-items: center;
  gap: 4px;
  flex-shrink: 0;
}
.lang-btn {
  padding: 4px 9px;
  border-radius: 3px;
  font-size: 0.7rem;
  font-weight: 600;
  letter-spacing: 0.08em;
  cursor: pointer;
  border: 1.5px solid var(--color-border);
  background: transparent;
  color: var(--color-mid);
  transition: all 0.18s;
  line-height: 1.5;
}
.lang-btn:hover { border-color: var(--color-accent); color: var(--color-accent); }
.lang-btn.active { background: var(--color-accent); border-color: var(--color-accent); color: var(--color-white); }

.nav__burger {
  display: none;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  width: 32px; height: 32px;
  cursor: pointer;
  background: none;
  border: none;
  padding: 4px;
  flex-shrink: 0;
}
.nav__burger span {
  display: block;
  height: 2px;
  background: var(--color-dark);
  border-radius: 2px;
  transition: all 0.25s;
  transform-origin: center;
}
.nav.is-open .nav__burger span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.nav.is-open .nav__burger span:nth-child(2) { opacity: 0; }
.nav.is-open .nav__burger span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

.nav__mobile {
  display: none;
  position: fixed;
  top: var(--nav-h); left: 0; right: 0;
  background: var(--color-white);
  border-bottom: 1px solid var(--color-border);
  padding: 20px 24px 24px;
  z-index: 999;
  box-shadow: 0 8px 32px rgba(0,0,0,0.08);
}
.nav__mobile.is-open { display: block; }
.nav__mobile ul { list-style: none; display: flex; flex-direction: column; }
.nav__mobile ul li a {
  display: block;
  padding: 13px 0;
  font-size: 0.95rem;
  font-weight: 500;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  color: var(--color-dark);
  border-bottom: 1px solid var(--color-border);
  transition: color 0.2s, padding-left 0.2s;
}
.nav__mobile ul li:last-child a { border-bottom: none; }
.nav__mobile ul li a:hover,
.nav__mobile ul li a.active { color: var(--color-accent); padding-left: 6px; }
.nav__mobile .lang-switcher { margin-top: 20px; justify-content: center; gap: 8px; }
.nav__mobile .lang-btn { padding: 6px 14px; font-size: 0.78rem; }

/* ── HERO ── */
.hero {
  position: relative;
  min-height: 100svh;
  display: flex;
  align-items: center;
  padding-top: var(--nav-h);
  background: var(--color-dark);
  overflow: hidden;
}
.hero--short { min-height: 52vh; }

.hero__bg {
  position: absolute;
  inset: 0;
  background-image: url('https://oliverkoenig.net/wp-content/uploads/2025/01/2025-01-02-18_56_34-20241106_170750.jpg.png');
  background-size: cover;
  background-position: center 20%;
  opacity: 0.22;
}
.hero__inner {
  position: relative;
  max-width: var(--max-w);
  margin: 0 auto;
  padding: 80px 24px;
  width: 100%;
}
.hero--short .hero__inner { padding: 60px 24px; }

.hero__eyebrow {
  font-size: 0.72rem;
  font-weight: 500;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--color-accent2);
  margin-bottom: 20px;
}
.hero__title {
  font-family: var(--font-serif);
  font-size: clamp(1.8rem, 4.5vw, 3.2rem);
  font-weight: 400;
  color: var(--color-white);
  line-height: 1.25;
  max-width: 760px;
  margin-bottom: 20px;
}
.hero__sub {
  font-size: clamp(1rem, 1.8vw, 1.15rem);
  color: rgba(255,255,255,0.65);
  max-width: 600px;
  line-height: 1.65;
  margin-bottom: 32px;
}
.hero__quotes { display: flex; flex-direction: column; gap: 18px; max-width: 660px; margin-bottom: 32px; }
.hero__quote {
  font-family: var(--font-serif);
  font-style: italic;
  font-size: clamp(0.95rem, 1.8vw, 1.12rem);
  color: rgba(255,255,255,0.68);
  line-height: 1.65;
  padding-left: 18px;
  border-left: 2px solid var(--color-accent);
}
.hero__cta { display: flex; gap: 12px; flex-wrap: wrap; }

/* ── BUTTONS ── */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 13px 26px;
  border-radius: 3px;
  font-size: 0.82rem;
  font-weight: 600;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  cursor: pointer;
  border: none;
  transition: all 0.2s;
  white-space: nowrap;
}
.btn--primary { background: var(--color-accent); color: var(--color-white); }
.btn--primary:hover { background: var(--color-accent2); }
.btn--outline { background: transparent; color: var(--color-white); border: 1.5px solid rgba(255,255,255,0.4); }
.btn--outline:hover { border-color: var(--color-white); background: rgba(255,255,255,0.08); }
.btn--ghost {
  background: transparent;
  color: var(--color-accent);
  border: 1.5px solid var(--color-accent);
  padding: 10px 20px;
  font-size: 0.76rem;
}
.btn--ghost:hover { background: var(--color-accent); color: var(--color-white); }
.btn--dark { background: var(--color-dark); color: var(--color-white); }
.btn--dark:hover { background: var(--color-mid); }

/* ── SECTIONS ── */
.section { padding: var(--section-pad); }
.section--light { background: var(--color-light); }
.section--dark { background: var(--color-dark); color: var(--color-white); }
.section__inner { max-width: var(--max-w); margin: 0 auto; }

.section__tag {
  font-size: 0.68rem;
  font-weight: 600;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--color-accent);
  margin-bottom: 12px;
}
.section__title {
  font-family: var(--font-serif);
  font-size: clamp(1.6rem, 3.5vw, 2.7rem);
  font-weight: 400;
  line-height: 1.2;
  margin-bottom: 14px;
}
.section__subtitle {
  font-size: 1.03rem;
  color: var(--color-mid);
  max-width: 620px;
  line-height: 1.7;
  margin-bottom: 48px;
}
.section--dark .section__subtitle { color: rgba(255,255,255,0.65); }

/* ── INTRO BAR ── */
.intro { background: var(--color-accent); padding: 32px 24px; text-align: center; }
.intro__inner { max-width: var(--max-w); margin: 0 auto; }
.intro__label {
  font-size: 0.7rem;
  font-weight: 600;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: rgba(255,255,255,0.75);
  margin-bottom: 8px;
}
.intro__text {
  font-family: var(--font-serif);
  font-size: clamp(1.2rem, 2.5vw, 1.65rem);
  color: var(--color-white);
  line-height: 1.4;
}

/* ── SERVICE CARDS ── */
.services__grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 24px;
}
.service-card {
  background: var(--color-white);
  border: 1px solid var(--color-border);
  border-top: 3px solid var(--color-accent);
  padding: 36px 30px;
  transition: box-shadow 0.25s, transform 0.25s;
}
.service-card:hover { box-shadow: 0 8px 32px rgba(0,0,0,0.08); transform: translateY(-3px); }
.service-card__icon {
  width: 44px;
  height: 44px;
  margin-bottom: 20px;
  color: var(--color-accent);
}
.service-card__icon svg {
  width: 100%;
  height: 100%;
}
.service-card__title {
  font-family: var(--font-serif);
  font-size: 1.25rem;
  font-weight: 700;
  margin-bottom: 12px;
  color: var(--color-dark);
}
.service-card__desc {
  font-size: 0.92rem;
  color: var(--color-mid);
  line-height: 1.65;
  margin-bottom: 24px;
}

/* ── QUOTE BLOCK ── */
.quote-block {
  padding: 48px 24px;
  background: var(--color-dark);
  text-align: center;
}
.quote-block__inner { max-width: 820px; margin: 0 auto; }
.quote-block blockquote {
  font-family: var(--font-serif);
  font-style: italic;
  font-size: clamp(1.1rem, 2.5vw, 1.55rem);
  color: rgba(255,255,255,0.82);
  line-height: 1.6;
  position: relative;
  padding: 0 24px;
}
.quote-block blockquote::before {
  content: '"';
  font-size: 4rem;
  color: var(--color-accent);
  line-height: 0;
  vertical-align: -0.6em;
  margin-right: 8px;
}
.quote-block cite {
  display: block;
  margin-top: 16px;
  font-size: 0.78rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--color-accent2);
  font-style: normal;
}

/* ── CHECK LIST (Gutachten) ── */
.check-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 20px;
  margin-bottom: 48px;
}
.check-item {
  background: var(--color-light);
  border-left: 3px solid var(--color-accent);
  padding: 24px 22px;
}
.check-item h3 {
  font-family: var(--font-serif);
  font-size: 1.05rem;
  font-weight: 700;
  margin-bottom: 8px;
  color: var(--color-dark);
}
.check-item p { font-size: 0.9rem; color: var(--color-mid); line-height: 1.6; }

/* ── STEPS ── */
.steps {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
  margin-bottom: 48px;
}
.step { position: relative; padding: 28px 20px 24px; background: var(--color-white); border: 1px solid var(--color-border); }
.step__num {
  width: 40px; height: 40px;
  border-radius: 50%;
  background: var(--color-accent);
  color: white;
  display: flex; align-items: center; justify-content: center;
  font-weight: 700;
  font-size: 1rem;
  margin-bottom: 14px;
}
.step h3 { font-family: var(--font-serif); font-size: 1rem; font-weight: 700; margin-bottom: 8px; }
.step p { font-size: 0.88rem; color: var(--color-mid); line-height: 1.6; }

/* ── CREDENTIALS ── */
.creds { display: flex; flex-direction: column; gap: 10px; margin-top: 32px; }
.cred {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  font-size: 0.92rem;
  color: var(--color-mid);
  line-height: 1.5;
}
.cred::before {
  content: '✓';
  color: var(--color-accent);
  font-weight: 700;
  flex-shrink: 0;
  margin-top: 1px;
}

/* ── PROSE ── */
.prose h2 { font-family: var(--font-serif); font-size: clamp(1.4rem, 2.5vw, 2rem); font-weight: 400; margin-bottom: 16px; line-height: 1.3; }
.prose h3 { font-family: var(--font-serif); font-size: 1.1rem; font-weight: 700; margin-bottom: 10px; margin-top: 28px; }
.prose p { font-size: 1rem; color: var(--color-mid); line-height: 1.75; margin-bottom: 16px; }
.prose p strong { color: var(--color-dark); font-weight: 600; }
.prose ul { margin: 0 0 20px 20px; }
.prose ul li { font-size: 0.95rem; color: var(--color-mid); line-height: 1.7; margin-bottom: 6px; }

/* ── TWO-COLUMN LAYOUT ── */
.two-col { display: grid; grid-template-columns: 1fr 1fr; gap: 64px; align-items: start; }
.two-col--center { align-items: center; }

/* ── AREA LIST ── */
.area-tags { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 16px; }
.area-tag {
  padding: 6px 14px;
  background: var(--color-light);
  border: 1px solid var(--color-border);
  border-radius: 100px;
  font-size: 0.82rem;
  color: var(--color-mid);
}

/* ── TRUST BAR ── */
.trust { background: var(--color-dark); padding: 48px 24px; }
.trust__inner {
  max-width: var(--max-w);
  margin: 0 auto;
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 32px;
}
.trust-item { display: flex; align-items: flex-start; gap: 16px; }
.trust-item__icon {
  width: 36px; height: 36px;
  border-radius: 50%;
  background: var(--color-accent);
  color: white;
  display: flex; align-items: center; justify-content: center;
  font-size: 1rem;
  flex-shrink: 0;
}
.trust-item__text { font-size: 0.9rem; color: rgba(255,255,255,0.82); line-height: 1.55; }
.trust-item__text strong { display: block; color: var(--color-white); font-weight: 600; margin-bottom: 3px; }

/* ── CONTACT ── */
.contact__grid { display: grid; grid-template-columns: 1fr 1fr; gap: 56px; align-items: center; }
.contact__right { display: flex; flex-direction: column; gap: 14px; }
.contact__btn {
  display: flex; align-items: center; gap: 14px;
  padding: 18px 22px; border-radius: 4px;
  transition: all 0.2s; color: var(--color-white);
}
.contact__btn-icon { font-size: 1.4rem; flex-shrink: 0; }
.contact__btn-label { font-size: 0.68rem; font-weight: 400; opacity: 0.75; display: block; letter-spacing: 0.04em; }
.contact__btn-value { font-size: 0.97rem; font-weight: 600; }
.contact__btn--wa  { background: #1a9f4e; }
.contact__btn--wa:hover  { background: #158840; }
.contact__btn--phone { background: var(--color-mid); }
.contact__btn--phone:hover { background: var(--color-dark); }
.contact__btn--mail { background: var(--color-accent); }
.contact__btn--mail:hover { background: #7d6340; }

/* ── FOOTER ── */
.footer { background: #111; color: rgba(255,255,255,0.5); padding: 28px 24px; font-size: 0.8rem; }
.footer__inner {
  max-width: var(--max-w);
  margin: 0 auto;
  display: flex; align-items: center; justify-content: space-between;
  gap: 16px; flex-wrap: wrap;
}
.footer a { color: rgba(255,255,255,0.5); transition: color 0.2s; }
.footer a:hover { color: var(--color-white); }
.footer__links { display: flex; gap: 24px; }

/* ── STICKY PHONE ── */
.sticky-phone {
  position: fixed; bottom: 24px; right: 24px;
  z-index: 900; display: none; flex-direction: column; gap: 10px;
}
.sticky-phone a {
  width: 52px; height: 52px; border-radius: 50%;
  display: flex; align-items: center; justify-content: center;
  font-size: 1.4rem;
  box-shadow: 0 4px 16px rgba(0,0,0,0.25);
  transition: transform 0.2s; color: white;
}
.sticky-phone a:hover { transform: scale(1.1); }
.sticky-phone__wa  { background: #25D366; }
.sticky-phone__tel { background: var(--color-dark); }

/* ── SOLAR CALCULATOR ── */
.solar-calc { background: var(--color-light); padding: 48px; border: 1px solid var(--color-border); }
.solar-calc h3 { font-family: var(--font-serif); font-size: 1.4rem; margin-bottom: 24px; }
.calc-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px; margin-bottom: 20px; }
.calc-field label { display: block; font-size: 0.75rem; font-weight: 600; letter-spacing: 0.06em; text-transform: uppercase; color: var(--color-mid); margin-bottom: 6px; }
.calc-field input,
.calc-field select {
  width: 100%;
  padding: 10px 12px;
  border: 1.5px solid var(--color-border);
  border-radius: 3px;
  font-size: 0.9rem;
  font-family: var(--font-sans);
  background: white;
  color: var(--color-dark);
  transition: border-color 0.2s;
}
.calc-field input:focus,
.calc-field select:focus { outline: none; border-color: var(--color-accent); }
.calc-results {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 16px;
  margin-top: 24px;
}
.calc-result { background: var(--color-white); border: 1px solid var(--color-border); padding: 20px 16px; text-align: center; }
.calc-result__value { font-family: var(--font-serif); font-size: 1.8rem; font-weight: 700; color: var(--color-accent); line-height: 1; }
.calc-result__label { font-size: 0.75rem; color: var(--color-mid); margin-top: 6px; letter-spacing: 0.04em; }
.calc-note { font-size: 0.78rem; color: var(--color-mid); margin-top: 12px; line-height: 1.5; }

/* ── MUSIC CARD ── */
.music-card {
  display: flex;
  align-items: center;
  gap: 20px;
  border: 1px solid var(--color-border);
  padding: 20px 24px;
  border-radius: 3px;
  background: var(--color-white);
}
.music-card__icon {
  flex-shrink: 0;
  width: 48px;
  height: 48px;
  color: var(--color-accent);
}
.music-card__icon svg { width: 100%; height: 100%; }
.music-card__body { flex: 1; min-width: 0; }
.music-card__title { font-weight: 600; font-size: 0.95rem; color: var(--color-dark); margin-bottom: 3px; }
.music-card__sub { font-size: 0.82rem; color: var(--color-mid); }

/* ── RT60 CHART ── */
.rt60-grid { display: flex; flex-direction: column; gap: 8px; margin-top: 24px; }
.rt60-row { display: grid; grid-template-columns: 56px 1fr 52px; align-items: center; gap: 12px; }
.rt60-freq { font-size: 0.72rem; color: var(--color-mid); text-align: right; font-weight: 500; letter-spacing: 0.03em; }
.rt60-bar-wrap { position: relative; height: 22px; background: var(--color-light); border-radius: 2px; }
.rt60-bar { height: 100%; border-radius: 2px; transition: width 0.6s ease; }
.rt60-bar--good { background: #5a8a3c; }
.rt60-bar--long { background: #b85c3a; }
.rt60-bar--short { background: #3a6fb8; }
.rt60-ideal-zone {
  position: absolute; top: 0; height: 100%;
  background: rgba(154,124,79,0.12);
  border-left: 2px solid var(--color-accent);
  border-right: 2px solid var(--color-accent);
}
.rt60-val { font-size: 0.78rem; font-weight: 600; color: var(--color-dark); white-space: nowrap; }
.rt60-legend { display: flex; gap: 20px; margin-top: 12px; font-size: 0.72rem; color: var(--color-mid); flex-wrap: wrap; }
.rt60-legend span { display: flex; align-items: center; gap: 6px; }
.rt60-legend-dot { width: 10px; height: 10px; border-radius: 50%; flex-shrink: 0; }
.rt60-summary {
  margin-top: 20px; padding: 14px 18px;
  background: var(--color-light); border-left: 3px solid var(--color-accent);
  font-size: 0.82rem; color: var(--color-mid); line-height: 1.65;
}

/* ── GALLERY ── */
.gallery {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 10px;
  margin-top: 32px;
}
.gallery__img {
  width: 100%;
  aspect-ratio: 4/3;
  object-fit: cover;
  border-radius: 3px;
  display: block;
  cursor: zoom-in;
  transition: transform 0.25s ease, box-shadow 0.25s ease;
}
.gallery__img:hover {
  transform: scale(1.025);
  box-shadow: 0 8px 24px rgba(0,0,0,0.18);
  position: relative;
  z-index: 2;
}

/* ── LIGHTBOX ── */
.lightbox {
  display: none;
  position: fixed;
  inset: 0;
  background: rgba(0,0,0,0.92);
  z-index: 9999;
  justify-content: center;
  align-items: center;
  cursor: zoom-out;
  padding: 20px;
}
.lightbox.is-open { display: flex; }
.lightbox__img {
  max-width: 92vw;
  max-height: 88vh;
  object-fit: contain;
  border-radius: 3px;
  box-shadow: 0 20px 60px rgba(0,0,0,0.6);
}
.lightbox__close {
  position: fixed;
  top: 20px;
  right: 24px;
  color: #fff;
  font-size: 2rem;
  line-height: 1;
  cursor: pointer;
  opacity: 0.7;
  transition: opacity 0.2s;
  background: none;
  border: none;
  padding: 4px 8px;
}
.lightbox__close:hover { opacity: 1; }

/* ── RESPONSIVE ── */
@media (max-width: 960px) {
  :root { --section-pad: 64px 20px; }
  .nav__links { gap: 18px; }
  .nav__links a { font-size: 0.75rem; }
  .two-col { grid-template-columns: 1fr; gap: 40px; }
  .steps { grid-template-columns: repeat(2, 1fr); }
  .trust__inner { grid-template-columns: 1fr; gap: 24px; }
  .contact__grid { grid-template-columns: 1fr; gap: 36px; }
  .calc-grid { grid-template-columns: repeat(2, 1fr); }
  .calc-results { grid-template-columns: repeat(2, 1fr); }
  .gallery { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 760px) {
  .nav__links { display: none; }
  .lang-switcher.desktop-only { display: none; }
  .nav__burger { display: flex; }
}

@media (max-width: 640px) {
  :root { --section-pad: 48px 16px; --nav-h: 60px; }
  .hero--short { min-height: 45vh; }
  .hero__cta { flex-direction: column; align-items: flex-start; }
  .hero__cta .btn { width: 100%; justify-content: center; }
  .services__grid { grid-template-columns: 1fr; }
  .service-card { padding: 26px 20px; }
  .check-grid { grid-template-columns: 1fr; }
  .steps { grid-template-columns: 1fr; }
  .calc-grid { grid-template-columns: 1fr; }
  .calc-results { grid-template-columns: 1fr; }
  .gallery { grid-template-columns: 1fr; }
  .solar-calc { padding: 28px 20px; }
  .contact__btn { padding: 15px 18px; }
  .sticky-phone { display: flex; }
  .footer__inner { flex-direction: column; text-align: center; gap: 10px; }
}

@media (max-width: 380px) {
  .hero__title { font-size: 1.55rem; }
  .nav__logo-text { font-size: 0.9rem; }
}

/* ── KOOPERATIONEN ── */
.koop-note {
  background: rgba(154,124,79,0.08);
  border-left: 3px solid var(--color-accent);
  padding: 14px 20px;
  border-radius: 0 6px 6px 0;
  font-size: 0.87rem;
  color: var(--color-text-secondary);
  margin-bottom: 48px;
  line-height: 1.65;
}
.koop-firm { margin-bottom: 56px; }
.koop-firm__header {
  display: flex;
  align-items: baseline;
  gap: 16px;
  margin-bottom: 24px;
  padding-bottom: 14px;
  border-bottom: 1px solid var(--color-border);
}
.koop-firm__name {
  font-family: var(--font-sans);
  font-size: 0.74rem;
  font-weight: 600;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--color-text);
}
.koop-firm__link { font-size: 0.78rem; color: var(--color-accent); text-decoration: none; }
.koop-firm__link:hover { text-decoration: underline; }
.koop-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 28px; }
.koop-grid--small { grid-template-columns: repeat(3, 1fr); gap: 18px; }
.koop-card {
  border: 1px solid var(--color-border);
  border-radius: 8px;
  overflow: hidden;
  background: #fff;
  transition: box-shadow 0.2s;
}
.koop-card:hover { box-shadow: 0 4px 20px rgba(0,0,0,0.08); }
.koop-card__imgs { display: grid; grid-template-columns: repeat(3, 1fr); gap: 2px; height: 160px; overflow: hidden; }
.koop-card__imgs img { width: 100%; height: 100%; object-fit: cover; display: block; }
.koop-card__cover { height: 160px; overflow: hidden; }
.koop-card__cover img { width: 100%; height: 100%; object-fit: cover; display: block; transition: transform 0.35s ease; }
.koop-card:hover .koop-card__cover img { transform: scale(1.04); }
.koop-card__body { padding: 14px 18px 18px; }
.koop-card__body h4 { font-family: var(--font-serif); font-size: 0.95rem; font-weight: 400; margin: 0 0 6px; color: var(--color-text); }
.koop-card--small .koop-card__body h4 { font-size: 0.84rem; }
.koop-card__meta { font-size: 0.78rem; color: var(--color-text-secondary); margin: 0 0 4px; }
.koop-card__award { font-size: 0.74rem; color: var(--color-accent); margin: 0 0 12px; font-style: italic; }
.koop-card__link { font-size: 0.8rem; color: var(--color-accent); text-decoration: none; font-weight: 500; }
.koop-card__link:hover { text-decoration: underline; }
@media (max-width: 760px) {
  .koop-grid { grid-template-columns: 1fr; }
  .koop-grid--small { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 480px) {
  .koop-grid--small { grid-template-columns: 1fr; }
}

/* ── PROJECT GRID ── */
.project-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 28px; }
.project-card { border-radius: 8px; overflow: hidden; background: #fff; border: 1px solid var(--color-border); cursor: pointer; transition: box-shadow 0.2s; }
.project-card:hover { box-shadow: 0 6px 28px rgba(0,0,0,0.1); }
.project-card__cover { position: relative; height: 260px; overflow: hidden; }
.project-card__cover img { width: 100%; height: 100%; object-fit: cover; display: block; transition: transform 0.4s ease; }
.project-card:hover .project-card__cover img { transform: scale(1.04); }
.project-card__overlay { position: absolute; inset: 0; background: rgba(0,0,0,0); display: flex; align-items: center; justify-content: center; transition: background 0.25s; }
.project-card__overlay span { color: #fff; font-family: var(--font-sans); font-size: 0.8rem; letter-spacing: 0.12em; text-transform: uppercase; opacity: 0; transition: opacity 0.25s; }
.project-card:hover .project-card__overlay { background: rgba(0,0,0,0.28); }
.project-card:hover .project-card__overlay span { opacity: 1; }
.project-card__body { padding: 20px 22px 24px; }
.project-card__title { font-family: var(--font-serif); font-size: 1.15rem; font-weight: 400; margin: 0 0 6px; }
.project-card__meta { font-size: 0.78rem; color: var(--color-accent); margin: 0 0 10px; font-weight: 500; letter-spacing: 0.04em; }
.project-card__desc { font-size: 0.86rem; line-height: 1.65; color: var(--color-text-secondary); margin: 0; }

/* ── PROJECT LIGHTBOX ── */
.plb { position: fixed; inset: 0; background: rgba(0,0,0,0.93); z-index: 9000; display: flex; align-items: center; justify-content: center; opacity: 0; pointer-events: none; transition: opacity 0.25s; }
.plb.is-open { opacity: 1; pointer-events: all; }
.plb__img { max-width: 96vw; max-height: 92vh; object-fit: contain; display: block; cursor: pointer; user-select: none; }
:fullscreen .plb__img, :-webkit-full-screen .plb__img { max-width: 100vw; max-height: 100vh; }
.plb__close { position: absolute; top: 18px; right: 22px; background: none; border: none; color: #fff; font-size: 2.4rem; cursor: pointer; line-height: 1; opacity: 0.75; padding: 0; }
.plb__close:hover { opacity: 1; }
.plb__nav { position: absolute; top: 50%; transform: translateY(-50%); background: none; border: none; color: #fff; font-size: 3.2rem; cursor: pointer; padding: 10px 18px; opacity: 0.65; line-height: 1; transition: opacity 0.15s; }
.plb__nav:hover { opacity: 1; }
.plb__nav--prev { left: 8px; }
.plb__nav--next { right: 8px; }
.plb__counter { position: absolute; bottom: 18px; left: 50%; transform: translateX(-50%); color: rgba(255,255,255,0.5); font-size: 0.78rem; font-family: var(--font-sans); letter-spacing: 0.1em; }
@media (max-width: 760px) {
  .project-grid { grid-template-columns: 1fr; }
  .project-card__cover { height: 220px; }
  .plb__nav { font-size: 2.4rem; padding: 8px 12px; }
}