/* ============================================================
   Felix Bulka – Freier Architekt Stuttgart
   Stylesheet: Minimalistisch, elegant, bildlastig
   ============================================================ */

/* Inter */
@font-face {
  font-family: 'Inter';
  font-style: normal;
  font-weight: 300;
  font-display: swap;
  src: url('../../public/fonts/inter-300.woff2') format('woff2');
}
@font-face {
  font-family: 'Inter';
  font-style: normal;
  font-weight: 400;
  font-display: swap;
  src: url('../../public/fonts/inter-regular.woff2') format('woff2');
}
@font-face {
  font-family: 'Inter';
  font-style: normal;
  font-weight: 500;
  font-display: swap;
  src: url('../../public/fonts/inter-500.woff2') format('woff2');
}
@font-face {
  font-family: 'Inter';
  font-style: normal;
  font-weight: 600;
  font-display: swap;
  src: url('../../public/fonts/inter-600.woff2') format('woff2');
}

/* Playfair Display */
@font-face {
  font-family: 'Playfair Display';
  font-style: normal;
  font-weight: 400;
  font-display: swap;
  src: url('../../public/fonts/playfair-display-400.woff2') format('woff2');
}
@font-face {
  font-family: 'Playfair Display';
  font-style: normal;
  font-weight: 500;
  font-display: swap;
  src: url('../../public/fonts/playfair-display-500.woff2') format('woff2');
}
@font-face {
  font-family: 'Playfair Display';
  font-style: italic;
  font-weight: 400;
  font-display: swap;
  src: url('../../public/fonts/playfair-display-italic.woff2') format('woff2');
}


/* --- Reset & Basis --- */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

:root {
  --color-white:      #ffffff;
  --color-off-white:  #f8f7f5;
  --color-light-gray: #e8e6e1;
  --color-mid-gray:   #999999;
  --color-dark-gray:  #3a3a3a;
  --color-black:      #1a1a1a;
  --color-accent:     #7a2020;   /* gedämpftes Dunkelrot */

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

  --header-height: 72px;
  --max-width: 1440px;
  --content-width: 1200px;

  --transition-fast:   0.2s ease;
  --transition-medium: 0.4s ease;
  --transition-slow:   0.7s cubic-bezier(0.25, 0.46, 0.45, 0.94);
}

html {
  scroll-behavior: smooth;
  font-size: 16px;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

body {
  font-family: var(--font-sans);
  color: var(--color-black);
  background: var(--color-white);
  line-height: 1.6;
  overflow-x: hidden;
}

img {
  display: block;
  max-width: 100%;
  height: auto;
}

a {
  color: inherit;
  text-decoration: none;
}

/* --- Google Fonts Import --- */
@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600&family=Playfair+Display:ital,wght@0,400;0,500;1,400&display=swap');


/* ============================================================
   HEADER / NAVIGATION
   ============================================================ */
.site-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  height: var(--header-height);
  display: flex;
  align-items: center;
  padding: 0 40px;
  transition: background var(--transition-medium), box-shadow var(--transition-medium);
}

.site-header.transparent {
  background: transparent;
}

.site-header.scrolled {
  background: rgba(255, 255, 255, 0.97);
  box-shadow: 0 1px 0 var(--color-light-gray);
}

.site-header.scrolled .nav-logo,
.site-header.scrolled .nav-links a {
  color: var(--color-black);
}

.site-header.scrolled .nav-hamburger span {
  background: var(--color-black);
}

.nav-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  width: 100%;
  max-width: var(--max-width);
  margin: 0 auto;
}

.nav-logo {
  font-family: var(--font-sans);
  font-size: 15px;
  font-weight: 500;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--color-white);
  transition: color var(--transition-fast);
}

.nav-logo span {
  font-weight: 300;
  opacity: 0.75;
}

.nav-links {
  display: flex;
  list-style: none;
  gap: 48px;
}

.nav-links a {
  font-size: 12px;
  font-weight: 500;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: rgba(255,255,255,0.85);
  transition: color var(--transition-fast), opacity var(--transition-fast);
}

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

.site-header.scrolled .nav-links a {
  color: var(--color-dark-gray);
}

.site-header.scrolled .nav-links a:hover {
  color: var(--color-black);
}

/* Hamburger mobile */
.nav-hamburger {
  display: none;
  flex-direction: column;
  gap: 5px;
  cursor: pointer;
  padding: 4px;
  background: none;
  border: none;
}

.nav-hamburger span {
  display: block;
  width: 24px;
  height: 1.5px;
  background: var(--color-white);
  transition: transform var(--transition-medium), opacity var(--transition-fast);
}

.nav-hamburger.open span:nth-child(1) { transform: translateY(6.5px) rotate(45deg); }
.nav-hamburger.open span:nth-child(2) { opacity: 0; }
.nav-hamburger.open span:nth-child(3) { transform: translateY(-6.5px) rotate(-45deg); }

/* Mobile nav drawer */
.nav-mobile {
  display: none;
  position: fixed;
  inset: 0;
  z-index: 999;
  background: var(--color-white);
  padding: calc(var(--header-height) + 48px) 40px 48px;
  flex-direction: column;
  gap: 0;
}

.nav-mobile.open {
  display: flex;
}

.nav-mobile a {
  font-size: 28px;
  font-weight: 300;
  letter-spacing: 0.02em;
  color: var(--color-black);
  border-bottom: 1px solid var(--color-light-gray);
  padding: 24px 0;
  transition: color var(--transition-fast);
}

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


/* ============================================================
   HERO SECTION
   ============================================================ */
.hero {
  position: relative;
  width: 100%;
  height: 100vh;
  min-height: 600px;
  overflow: hidden;
  display: flex;
  align-items: flex-end;
}

.hero-bg {
  position: absolute;
  inset: 0;
  background-color: var(--color-dark-gray);
}

.hero-bg img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center center;
  transform: scale(1.03);
  transition: transform 8s ease;
}

.hero:hover .hero-bg img {
  transform: scale(1.0);
}

.hero-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(
    to top,
    rgba(15, 15, 15, 0.75) 0%,
    rgba(15, 15, 15, 0.2) 50%,
    rgba(15, 15, 15, 0.05) 100%
  );
}

.hero-content {
  position: relative;
  z-index: 2;
  width: 100%;
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 40px 80px;
}

.hero-eyebrow {
  font-size: 11px;
  font-weight: 500;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: rgba(255,255,255,0.65);
  margin-bottom: 16px;
}

.hero-name {
  font-family: var(--font-serif);
  font-size: clamp(52px, 7vw, 96px);
  font-weight: 400;
  line-height: 1;
  color: var(--color-white);
  letter-spacing: -0.02em;
  margin-bottom: 16px;
}

.hero-subtitle {
  font-size: 15px;
  font-weight: 300;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: rgba(255,255,255,0.75);
}

.hero-scroll {
  position: absolute;
  bottom: 36px;
  right: 40px;
  z-index: 2;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 10px;
  color: rgba(255,255,255,0.55);
  font-size: 10px;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  cursor: pointer;
  transition: color var(--transition-fast);
}

.hero-scroll:hover {
  color: rgba(255,255,255,0.9);
}

.hero-scroll-line {
  width: 1px;
  height: 48px;
  background: currentColor;
  animation: scrollPulse 2.5s ease-in-out infinite;
}

@keyframes scrollPulse {
  0%   { opacity: 0; transform: scaleY(0); transform-origin: top; }
  40%  { opacity: 1; transform: scaleY(1); transform-origin: top; }
  80%  { opacity: 0; transform: scaleY(1); transform-origin: bottom; }
  100% { opacity: 0; transform: scaleY(0); transform-origin: bottom; }
}


/* ============================================================
   ALLGEMEINE SECTION-STILE
   ============================================================ */
section {
  width: 100%;
}

.section-inner {
  max-width: var(--content-width);
  margin: 0 auto;
  padding: 0 40px;
}

.section-header {
  display: flex;
  align-items: baseline;
  gap: 24px;
  margin-bottom: 64px;
}

.section-number {
  font-size: 11px;
  font-weight: 500;
  letter-spacing: 0.15em;
  color: var(--color-accent);
  text-transform: uppercase;
  flex-shrink: 0;
}

.section-title {
  font-family: var(--font-serif);
  font-size: clamp(28px, 3.5vw, 44px);
  font-weight: 400;
  line-height: 1.1;
  letter-spacing: -0.01em;
  color: var(--color-black);
}

.section-divider {
  flex: 1;
  height: 1px;
  background: var(--color-light-gray);
  margin-left: 8px;
  align-self: center;
}

/* Fade-in animation */
.fade-in {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity var(--transition-slow), transform var(--transition-slow);
}

.fade-in.visible {
  opacity: 1;
  transform: translateY(0);
}

.fade-in-delay-1 { transition-delay: 0.1s; }
.fade-in-delay-2 { transition-delay: 0.2s; }
.fade-in-delay-3 { transition-delay: 0.3s; }
.fade-in-delay-4 { transition-delay: 0.4s; }


/* ============================================================
   ÜBER MICH SECTION
   ============================================================ */
#ueber-mich {
  padding: 120px 0;
  background: var(--color-white);
}

.about-grid {
  display: grid;
  grid-template-columns: 1fr 2fr;
  gap: 80px;
  align-items: start;
}

.about-portrait-wrap {
  position: sticky;
  top: calc(var(--header-height) + 32px);
}

.about-portrait {
  width: 100%;
  aspect-ratio: 3 / 4;
  object-fit: cover;
  object-position: top center;
  filter: grayscale(15%);
}

.about-portrait-caption {
  margin-top: 16px;
  font-size: 11px;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--color-mid-gray);
}

.about-text p {
  font-size: 17px;
  font-weight: 300;
  line-height: 1.8;
  color: var(--color-dark-gray);
  margin-bottom: 24px;
}

.about-text p:last-of-type {
  margin-bottom: 48px;
}

.about-meta {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 48px;
  margin-top: 56px;
  padding-top: 48px;
  border-top: 1px solid var(--color-light-gray);
}

.about-meta-block h4 {
  font-size: 10px;
  font-weight: 600;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--color-accent);
  margin-bottom: 20px;
}

.skills-list {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 8px;
}

.skill-tag {
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 12px;
  font-weight: 400;
  line-height: 1;
  letter-spacing: 0.05em;
  text-align: center;
  color: var(--color-dark-gray);
  background: var(--color-off-white);
  border: 1px solid var(--color-light-gray);
  padding: 6px 12px;
  transition: background var(--transition-fast), color var(--transition-fast);
}

.skill-tag:hover {
  background: var(--color-black);
  color: var(--color-white);
  border-color: var(--color-black);
}

.languages-list {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.languages-list li {
  font-size: 14px;
  color: var(--color-dark-gray);
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  padding-bottom: 10px;
  border-bottom: 1px solid var(--color-light-gray);
}

.lang-level {
  font-size: 11px;
  color: var(--color-mid-gray);
  letter-spacing: 0.05em;
}

.cv-link {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-size: 12px;
  font-weight: 500;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--color-black);
  border-bottom: 1px solid var(--color-black);
  padding-bottom: 2px;
  margin-top: 48px;
  transition: color var(--transition-fast), border-color var(--transition-fast);
}

.cv-link:hover {
  color: var(--color-accent);
  border-color: var(--color-accent);
}

.cv-link svg {
  transition: transform var(--transition-fast);
}

.cv-link:hover svg {
  transform: translateX(4px);
}


/* ============================================================
   PROJEKTE SECTION
   ============================================================ */
#projekte {
  padding: 120px 0;
  background: var(--color-off-white);
}

.projects-grid {
  display: grid;
  grid-template-columns: repeat(12, 1fr);
  gap: 2px;
}

/* Großes Featured-Projekt oben */
.project-card:nth-child(1) {
  grid-column: span 8;
}
.project-card:nth-child(2) {
  grid-column: span 4;
}
.project-card:nth-child(3) {
  grid-column: span 4;
}
.project-card:nth-child(4) {
  grid-column: span 8;
}
.project-card:nth-child(5) {
  grid-column: span 6;
}
.project-card:nth-child(6) {
  grid-column: span 6;
}

.project-card {
  position: relative;
  overflow: hidden;
  cursor: pointer;
  display: block;
  background: var(--color-dark-gray);
}

.project-card-img {
  width: 100%;
  aspect-ratio: 16/10;
  object-fit: cover;
  object-position: center;
  transform: scale(1.04);
  transition: transform 0.7s ease, opacity 0.4s ease;
  opacity: 0.92;
}

.project-card:nth-child(1) .project-card-img,
.project-card:nth-child(4) .project-card-img {
  aspect-ratio: 16/9;
}

.project-card:hover .project-card-img {
  transform: scale(1.0);
  opacity: 0.75;
}

.project-card-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(
    to top,
    rgba(10, 10, 10, 0.85) 0%,
    rgba(10, 10, 10, 0.1) 55%,
    transparent 100%
  );
  transition: background var(--transition-medium);
}

.project-card:hover .project-card-overlay {
  background: linear-gradient(
    to top,
    rgba(10, 10, 10, 0.9) 0%,
    rgba(10, 10, 10, 0.4) 55%,
    rgba(10, 10, 10, 0.1) 100%
  );
}

.project-card-info {
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  padding: 32px;
  transform: translateY(4px);
  transition: transform var(--transition-medium);
}

.project-card:hover .project-card-info {
  transform: translateY(0);
}

.project-card-cat {
  font-size: 10px;
  font-weight: 500;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: rgba(255,255,255,0.55);
  margin-bottom: 8px;
}

.project-card-title {
  font-family: var(--font-serif);
  font-size: clamp(18px, 2vw, 26px);
  font-weight: 400;
  color: var(--color-white);
  line-height: 1.2;
  margin-bottom: 6px;
}

.project-card:nth-child(1) .project-card-title,
.project-card:nth-child(4) .project-card-title {
  font-size: clamp(22px, 2.5vw, 32px);
}

.project-card-sub {
  font-size: 12px;
  font-weight: 300;
  color: rgba(255,255,255,0.55);
  letter-spacing: 0.05em;
}

.project-card-arrow {
  position: absolute;
  top: 28px;
  right: 28px;
  width: 40px;
  height: 40px;
  border: 1px solid rgba(255,255,255,0.3);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  transform: scale(0.8);
  transition: opacity var(--transition-medium), transform var(--transition-medium);
}

.project-card:hover .project-card-arrow {
  opacity: 1;
  transform: scale(1);
}

.project-card-arrow svg {
  color: white;
}


/* ============================================================
   LEISTUNGEN SECTION
   ============================================================ */
#leistungen {
  padding: 120px 0;
  background: var(--color-white);
}

.services-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1px;
  background: var(--color-light-gray);
  border: 1px solid var(--color-light-gray);
}

.service-card {
  background: var(--color-white);
  padding: 48px 40px;
  transition: background var(--transition-medium);
}

.service-card:hover {
  background: var(--color-off-white);
}

.service-icon {
  width: 40px;
  height: 40px;
  margin-bottom: 32px;
  color: var(--color-accent);
}

.service-number {
  font-size: 11px;
  font-weight: 500;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--color-light-gray);
  margin-bottom: 16px;
  display: block;
}

.service-title {
  font-family: var(--font-serif);
  font-size: 20px;
  font-weight: 400;
  color: var(--color-black);
  margin-bottom: 16px;
  line-height: 1.3;
}

.service-desc {
  font-size: 14px;
  font-weight: 300;
  line-height: 1.7;
  color: var(--color-mid-gray);
}


/* ============================================================
   KONTAKT SECTION
   ============================================================ */
#kontakt {
  padding: 120px 0;
  background: var(--color-black);
}

#kontakt .section-number {
  color: rgba(255,255,255,0.35);
}

#kontakt .section-title {
  color: var(--color-white);
}

#kontakt .section-divider {
  background: rgba(255,255,255,0.1);
}

.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 80px;
  align-items: start;
}

.contact-intro {
  font-family: var(--font-serif);
  font-size: clamp(22px, 2.5vw, 32px);
  font-weight: 400;
  line-height: 1.4;
  color: var(--color-white);
  margin-bottom: 48px;
}

.contact-details {
  display: flex;
  flex-direction: column;
  gap: 0;
}

.contact-item {
  display: flex;
  flex-direction: column;
  gap: 4px;
  padding: 24px 0;
  border-bottom: 1px solid rgba(255,255,255,0.08);
}

.contact-item:first-child {
  border-top: 1px solid rgba(255,255,255,0.08);
}

.contact-label {
  font-size: 10px;
  font-weight: 500;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: rgba(255,255,255,0.35);
}

.contact-value {
  font-size: 15px;
  color: rgba(255,255,255,0.85);
  transition: color var(--transition-fast);
}

a.contact-value:hover {
  color: var(--color-white);
}

/* Kontaktformular */
.contact-form {
  display: flex;
  flex-direction: column;
  gap: 0;
}

.form-group {
  position: relative;
  margin-bottom: 2px;
}

.form-input,
.form-textarea {
  width: 100%;
  background: rgba(255,255,255,0.05);
  border: none;
  border-bottom: 1px solid rgba(255,255,255,0.15);
  padding: 20px 0 14px 12px;
  font-family: var(--font-sans);
  font-size: 14px;
  font-weight: 300;
  color: var(--color-white);
  outline: none;
  transition: border-color var(--transition-fast), background var(--transition-fast);
  resize: none;
}

.form-input::placeholder,
.form-textarea::placeholder {
  color: rgba(255,255,255,0.3);
  letter-spacing: 0.05em;
}

.form-input:focus,
.form-textarea:focus {
  border-bottom-color: var(--color-white);
  background: rgba(255,255,255,0.07);
}

.form-textarea {
  height: 120px;
  padding-top: 20px;
}

.form-submit {
  margin-top: 40px;
  display: inline-flex;
  align-items: center;
  gap: 14px;
  background: var(--color-white);
  color: var(--color-black);
  font-family: var(--font-sans);
  font-size: 12px;
  font-weight: 500;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  border: none;
  padding: 18px 40px;
  cursor: pointer;
  transition: background var(--transition-fast), color var(--transition-fast), gap var(--transition-fast);
  align-self: flex-start;
}

.form-submit:hover {
  background: var(--color-accent);
  color: var(--color-white);
  gap: 20px;
}

.form-submit svg {
  flex-shrink: 0;
}

.form-success {
  display: none;
  font-size: 14px;
  color: rgba(255,255,255,0.65);
  padding: 20px 0;
}

.form-success.shown {
  display: block;
}


/* ============================================================
   FOOTER
   ============================================================ */
.site-footer {
  background: var(--color-black);
  border-top: 1px solid rgba(255,255,255,0.06);
  padding: 32px 40px;
}

.footer-inner {
  max-width: var(--max-width);
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.footer-copy {
  font-size: 12px;
  color: rgba(255,255,255,0.3);
  letter-spacing: 0.05em;
}

.footer-links {
  display: flex;
  gap: 32px;
  list-style: none;
}

.footer-links a {
  font-size: 11px;
  color: rgba(255,255,255,0.3);
  letter-spacing: 0.08em;
  text-transform: uppercase;
  transition: color var(--transition-fast);
}

.footer-links a:hover {
  color: rgba(255,255,255,0.7);
}


/* ============================================================
   PROJEKT-DETAILSEITEN
   ============================================================ */
.project-hero {
  width: 100%;
  height: 70vh;
  min-height: 480px;
  overflow: hidden;
  position: relative;
  background: var(--color-dark-gray);
}

.project-hero img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center;
}

.project-hero-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(to top, rgba(0,0,0,0.6) 0%, transparent 60%);
}

.project-hero-content {
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  padding: 0 40px 56px;
  max-width: var(--max-width);
  margin: 0 auto;
}

.project-back {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-size: 11px;
  font-weight: 500;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: rgba(255,255,255,0.6);
  margin-bottom: 24px;
  transition: color var(--transition-fast);
}

.project-back:hover {
  color: var(--color-white);
}

.project-detail-eyebrow {
  font-size: 11px;
  font-weight: 500;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: rgba(255,255,255,0.5);
  margin-bottom: 12px;
}

.project-detail-title {
  font-family: var(--font-serif);
  font-size: clamp(36px, 5vw, 64px);
  font-weight: 400;
  line-height: 1;
  color: var(--color-white);
  letter-spacing: -0.01em;
}

/* Projekt Inhalt */
.project-content {
  max-width: var(--content-width);
  margin: 0 auto;
  padding: 80px 40px;
}

.project-meta-bar {
  display: flex;
  gap: 64px;
  padding-bottom: 48px;
  border-bottom: 1px solid var(--color-light-gray);
  margin-bottom: 64px;
  flex-wrap: wrap;
}

.project-meta-item {
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.project-meta-label {
  font-size: 10px;
  font-weight: 600;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--color-accent);
}

.project-meta-value {
  font-size: 15px;
  color: var(--color-dark-gray);
}

.project-description {
  max-width: 680px;
}

.project-description p {
  font-size: 18px;
  font-weight: 300;
  line-height: 1.8;
  color: var(--color-dark-gray);
  margin-bottom: 24px;
}

/* Bildergalerie */
.project-gallery {
  margin-top: 80px;
}

.gallery-title {
  font-size: 10px;
  font-weight: 600;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--color-accent);
  margin-bottom: 32px;
}

.gallery-grid {
  display: grid;
  gap: 3px;
}

.gallery-grid-2col {
  grid-template-columns: 1fr 1fr;
}

.gallery-grid-3col {
  grid-template-columns: 1fr 1fr 1fr;
}

.gallery-grid-1col {
  grid-template-columns: 1fr;
}

.gallery-img-wrap {
  overflow: hidden;
  cursor: zoom-in;
  background: var(--color-light-gray);
}

.gallery-img-wrap img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.5s ease;
}

.gallery-img-wrap:hover img {
  transform: scale(1.03);
}

.gallery-img-wrap.full {
  aspect-ratio: 16/9;
}

.gallery-img-wrap.half {
  aspect-ratio: 4/3;
}

.gallery-img-wrap.third {
  aspect-ratio: 4/3;
}

.gallery-caption {
  font-size: 11px;
  color: var(--color-mid-gray);
  margin-top: 10px;
  letter-spacing: 0.05em;
}

/* Lightbox */
.lightbox {
  position: fixed;
  inset: 0;
  z-index: 9000;
  background: rgba(0,0,0,0.95);
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.3s ease;
}

.lightbox.open {
  opacity: 1;
  pointer-events: all;
}

.lightbox-img {
  max-width: 90vw;
  max-height: 90vh;
  object-fit: contain;
}

.lightbox-close {
  position: absolute;
  top: 24px;
  right: 32px;
  width: 40px;
  height: 40px;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  color: rgba(255,255,255,0.6);
  transition: color var(--transition-fast);
}

.lightbox-close:hover { color: var(--color-white); }

.lightbox-nav {
  position: absolute;
  top: 50%;
  transform: translateY(-50%);
  width: 48px;
  height: 48px;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  color: rgba(255,255,255,0.5);
  border: 1px solid rgba(255,255,255,0.15);
  background: none;
  transition: color var(--transition-fast), border-color var(--transition-fast);
}

.lightbox-nav:hover {
  color: var(--color-white);
  border-color: rgba(255,255,255,0.5);
}

.lightbox-prev { left: 32px; }
.lightbox-next { right: 32px; }

/* Projekt Navigation (vor/zurück) */
.project-nav-bar {
  border-top: 1px solid var(--color-light-gray);
  margin-top: 80px;
  padding-top: 0;
  display: grid;
  grid-template-columns: 1fr 1fr;
}

.project-nav-item {
  padding: 40px;
  display: flex;
  flex-direction: column;
  gap: 8px;
  transition: background var(--transition-fast);
}

.project-nav-item:hover {
  background: var(--color-off-white);
}

.project-nav-item:last-child {
  border-left: 1px solid var(--color-light-gray);
  text-align: right;
  align-items: flex-end;
}

.project-nav-label {
  font-size: 10px;
  font-weight: 500;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--color-mid-gray);
}

.project-nav-title {
  font-family: var(--font-serif);
  font-size: 18px;
  color: var(--color-black);
}


/* ============================================================
   RESPONSIVE
   ============================================================ */
@media (max-width: 1024px) {
  .about-grid {
    grid-template-columns: 1fr 1.5fr;
    gap: 60px;
  }

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

  .projects-grid .project-card:nth-child(n) {
    grid-column: span 6;
  }

  .projects-grid .project-card:nth-child(1) {
    grid-column: span 12;
  }
}

@media (max-width: 768px) {
  :root {
    --header-height: 60px;
  }

  .site-header {
    padding: 0 24px;
  }

  .nav-links {
    display: none;
  }

  .nav-hamburger {
    display: flex;
  }

  .section-inner {
    padding: 0 24px;
  }

  #ueber-mich,
  #projekte,
  #leistungen {
    padding: 80px 0;
  }

  #kontakt {
    padding: 80px 0;
  }

  .about-grid {
    grid-template-columns: 1fr;
    gap: 48px;
  }

  .about-portrait-wrap {
    position: static;
    max-width: 280px;
  }

  .about-meta {
    grid-template-columns: 1fr;
    gap: 32px;
  }

  .projects-grid {
    grid-template-columns: 1fr;
    gap: 2px;
  }

  .projects-grid .project-card:nth-child(n) {
    grid-column: span 1;
  }

  .services-grid {
    grid-template-columns: 1fr;
  }

  .service-card {
    padding: 36px 24px;
  }

  .contact-grid {
    grid-template-columns: 1fr;
    gap: 48px;
  }

  .footer-inner {
    flex-direction: column;
    gap: 16px;
    text-align: center;
  }

  .hero-content {
    padding: 0 24px 64px;
  }

  .hero-scroll {
    right: 24px;
    display: none;
  }

  .project-hero {
    height: 55vh;
  }

  .project-hero-content {
    padding: 0 24px 40px;
  }

  .project-content {
    padding: 48px 24px;
  }

  .project-meta-bar {
    gap: 32px;
  }

  .project-gallery .gallery-grid-2col,
  .project-gallery .gallery-grid-3col {
    grid-template-columns: 1fr;
  }

  .project-nav-bar {
    grid-template-columns: 1fr;
  }

  .project-nav-item:last-child {
    border-left: none;
    border-top: 1px solid var(--color-light-gray);
    text-align: left;
    align-items: flex-start;
  }

  .lightbox-prev { left: 12px; }
  .lightbox-next { right: 12px; }

  .section-header {
    margin-bottom: 48px;
  }
}

@media (max-width: 480px) {
  .hero-name {
    font-size: 42px;
  }
}