/* ============================================
   MARCIN BIELENIN PORTFOLIO
   ============================================ */

:root {
  --bg:        #0c0c0c;
  --bg2:       #141414;
  --bg3:       #1c1c1c;
  --line:      rgba(255,255,255,0.07);
  --text:      #d8d4ce;
  --text-dim:  #6b6760;
  --text-mid:  #9e9890;
  --accent:    #b8965a;
  --white:     #f0ece6;
}

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


html { font-size: 16px; -webkit-font-smoothing: antialiased; }

body {
  background: var(--bg);
  color: var(--text);
  font-family: 'Karla', sans-serif;
  font-weight: 300;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

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

img { display: block; width: 100%; }

/* ---- HEADER ---- */
header {
  position: sticky;
  top: 0;
  z-index: 50;
  background: rgba(12,12,12,0.92);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--line);
}

.header-inner {
  max-width: 1600px;
  margin: 0 auto;
  padding: 0 40px;
  height: 64px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
}

.header-identity {
  display: flex;
  align-items: baseline;
  gap: 20px;
  flex-shrink: 0;
}

.site-name {
  font-family: 'Karla', sans-serif;
  font-size: 18px;
  font-weight: 400;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--white);
}

.site-title {
  font-size: 11px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--text-dim);
}

nav {
  display: flex;
  gap: 32px;
}

.nav-link {
  font-size: 11px;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--text-dim);
  transition: color 0.2s;
}

.nav-link:hover,
.nav-link.active {
  color: var(--text);
}

/* ---- GRID ---- */
main { flex: 1; }

.projects-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 2px;
  background: var(--line);
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}

@keyframes fadeUp {
  from { opacity: 0; transform: translateY(12px); }
  to   { opacity: 1; transform: translateY(0); }
}

.project-card {
  display: block;
  position: relative;
  overflow: hidden;
  background: var(--bg2);
  aspect-ratio: 1/1;
  animation: fadeUp 0.5s ease both;
  cursor: pointer;
}

.card-image {
  width: 100%;
  height: 100%;
  overflow: hidden;
}

.card-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  filter: brightness(0.82) saturate(0.9);
  transition: transform 0.6s cubic-bezier(0.25,0,0,1), filter 0.4s ease;
}

.project-card:hover .card-image img {
  transform: scale(1.05);
  filter: brightness(1) saturate(1);
}

.card-info { display: none; }

/* ---- PROJECT PAGE ---- */
.project-page {
  max-width: 1600px;
  margin: 0 auto;
  padding: 0 40px 80px;
  width: 100%;
}

.project-nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 28px 0;
  border-bottom: 1px solid var(--line);
  margin-bottom: 48px;
}

.back-link {
  font-size: 11px;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--text-dim);
  transition: color 0.2s;
}

.back-link:hover { color: var(--text); }

.project-prev-next {
  display: flex;
  gap: 32px;
}

.prev-next-link {
  font-size: 11px;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--text-dim);
  transition: color 0.2s;
}

.prev-next-link:hover { color: var(--text); }

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

.project-title {
  font-family: 'Karla', sans-serif;
  font-size: 42px;
  font-weight: 300;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--white);
  margin-bottom: 12px;
  line-height: 1.1;
}

.project-desc {
  font-size: 14px;
  line-height: 1.75;
  color: var(--text-mid);
  max-width: 600px;
}

.project-blocks {
  display: flex;
  flex-direction: column;
  gap: 3px;
}

.block-image {
  text-align: center;
}

.block-image img {
  display: block;
  width: auto;
  max-width: 100%;
  margin: 0 auto;
  cursor: zoom-in;
  transition: opacity 0.2s;
}

.block-image img:hover { opacity: 0.93; }

/* Video embed */
.block-video { width: 100%; margin-bottom: 3px; }

.video-ratio {
  position: relative;
  padding-bottom: 56.25%; /* 16:9 */
  height: 0;
  background: #000;
}

.video-ratio iframe {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
}

/* ---- LIGHTBOX ---- */
.lightbox {
  display: none;
  position: fixed;
  inset: 0;
  z-index: 200;
  background: rgba(0,0,0,0.96);
  align-items: center;
  justify-content: center;
}

.lightbox.open { display: flex; }

.lightbox-inner {
  max-width: 90vw;
  max-height: 90vh;
  display: flex;
  align-items: center;
  justify-content: center;
}

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

.lightbox-close,
.lightbox-prev,
.lightbox-next {
  position: fixed;
  background: none;
  border: none;
  color: rgba(255,255,255,0.5);
  cursor: pointer;
  font-size: 28px;
  transition: color 0.2s;
  padding: 16px;
  line-height: 1;
}

.lightbox-close:hover,
.lightbox-prev:hover,
.lightbox-next:hover { color: #fff; }

.lightbox-close { top: 20px; right: 24px; font-size: 20px; }
.lightbox-prev  { left: 16px; top: 50%; transform: translateY(-50%); font-size: 48px; }
.lightbox-next  { right: 16px; top: 50%; transform: translateY(-50%); font-size: 48px; }

/* ---- STATIC PAGES (resume, contact) ---- */
.static-page {
  max-width: 760px;
  margin: 0 auto;
  padding: 60px 40px 100px;
}

.page-title {
  font-family: 'Karla', sans-serif;
  font-size: 36px;
  font-weight: 300;
  color: var(--white);
  margin-bottom: 40px;
  padding-bottom: 20px;
  border-bottom: 1px solid var(--line);
}

.section-title {
  font-family: 'Karla', sans-serif;
  font-size: 20px;
  font-weight: 400;
  color: var(--text);
  margin: 36px 0 12px;
  letter-spacing: 0.04em;
}

.static-page p,
.static-page li {
  font-size: 14px;
  line-height: 1.8;
  color: var(--text-mid);
}

.static-page ul {
  list-style: none;
  padding: 0;
}

.static-page li::before {
  content: '—';
  margin-right: 10px;
  color: var(--text-dim);
}

.resume-row {
  display: flex;
  gap: 24px;
  margin-bottom: 8px;
  padding: 12px 0;
  border-bottom: 1px solid var(--line);
}

.resume-year {
  font-size: 12px;
  letter-spacing: 0.08em;
  color: var(--text-dim);
  min-width: 120px;
  padding-top: 2px;
}

.resume-content strong {
  display: block;
  font-size: 14px;
  font-weight: 400;
  color: var(--text);
  margin-bottom: 4px;
}

.resume-content span {
  font-size: 13px;
  color: var(--text-mid);
}

/* Contact form */
.contact-form {
  margin-top: 32px;
  display: flex;
  flex-direction: column;
  gap: 20px;
}

.form-field {
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.form-field label {
  font-size: 11px;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--text-dim);
}

.form-field input,
.form-field textarea {
  background: var(--bg2);
  border: 1px solid var(--line);
  color: var(--text);
  font-family: 'Karla', sans-serif;
  font-size: 14px;
  font-weight: 300;
  padding: 12px 16px;
  outline: none;
  transition: border-color 0.2s;
  resize: vertical;
}

.form-field input:focus,
.form-field textarea:focus {
  border-color: rgba(255,255,255,0.2);
}

.btn-send {
  align-self: flex-start;
  background: none;
  border: 1px solid var(--line);
  color: var(--text-dim);
  cursor: pointer;
  font-family: 'Karla', sans-serif;
  font-size: 11px;
  font-weight: 300;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  padding: 12px 28px;
  transition: color 0.2s, border-color 0.2s;
}

.btn-send:hover {
  color: var(--white);
  border-color: rgba(255,255,255,0.25);
}

/* ---- FOOTER ---- */
footer {
  border-top: 1px solid var(--line);
  padding: 24px 40px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 12px;
}

.footer-copy {
  font-size: 11px;
  letter-spacing: 0.08em;
  color: var(--text-dim);
}

.footer-links {
  display: flex;
  gap: 28px;
}

.footer-links a {
  font-size: 11px;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--text-dim);
  transition: color 0.2s;
}

.footer-links a:hover { color: var(--text); }

/* ---- RESPONSIVE ---- */

/* 2560px+ — 6 kolumn */
@media (min-width: 2560px) {
  .projects-grid { grid-template-columns: repeat(6, 1fr); }
}

/* 1920px–2559px — 5 kolumn */
@media (min-width: 1920px) and (max-width: 2559px) {
  .projects-grid { grid-template-columns: repeat(5, 1fr); }
}

/* domyślne: 1201px–1919px — 4 kolumny (zdefiniowane wyżej) */

@media (max-width: 1200px) {
  .projects-grid { grid-template-columns: repeat(3, 1fr); }
}

@media (max-width: 800px) {
  .header-inner { padding: 0 20px; }
  .site-title { display: none; }
  .projects-grid { grid-template-columns: repeat(2, 1fr); }
  .project-page { padding: 0 20px 60px; }
  .static-page { padding: 40px 20px 60px; }
  footer { padding: 20px; }
  .project-title { font-size: 28px; }
}

@media (max-width: 480px) {
  .projects-grid { grid-template-columns: 1fr; }
  .card-info { opacity: 1; transform: none; }
}