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

body {
  background: #0F1013;
  color: white;
  font-family: 'Manrope', sans-serif;
  overflow-x: hidden;
}

/* ── NAV ── */
.navbar {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  z-index: 100;
}

.nav-bg {
  position: absolute;
  inset: 0;
  height: 200px;
  background: linear-gradient(to bottom, rgba(5, 7, 13, 0.95), rgba(5, 7, 13, 0));
}

.nav-links {
  position: relative;
  display: flex;
  justify-content: center;
  gap: 40px;
  padding: 32px;
}

.nav-links a {
  color: white;
  text-decoration: none;
  font-size: 14px;
}

.nav-links a:hover {
  opacity: 0.6;
  transition: opacity 0.3s ease;
}

/* ── HERO ── */
.cs-hero {
  padding: 180px 80px 64px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
}

.cs-hero__label {
  font-family: 'Space Mono', monospace;
  font-size: 13px;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: #375ECC;
  margin-bottom: 28px;
}

.cs-hero__title {
  font-family: 'Space Mono', monospace;
  font-size: clamp(22px, 2.8vw, 42px);
  line-height: 1.15;
  letter-spacing: -1px;
  margin-bottom: 32px;
  max-width: none;
}

.cs-hero__meta {
  display: flex;
  flex-wrap: wrap;
  gap: 8px 40px;
  font-size: 14px;
  color: #8A8F98;
  font-family: 'Space Mono', monospace;
}

/* ── MAIN CONTENT ── */
.cs-main {
  max-width: 1400px;
  margin: 0 auto;
  padding: 0 80px;
}

/* ── SECTIONS ── */
.cs-section {
  display: grid;
  grid-template-columns: 60px 1fr;
  gap: 0 40px;
  padding: 72px 0;
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
}

/* card-style section with slightly lighter bg */
.cs-section--card {
  background: #1F2228;
  /* border-radius: 16px; */
  padding: 48px;
  grid-template-columns: 60px 1fr;
  margin: 0 -48px;
  border-bottom: none;
  margin-bottom: -1px;
}

.cs-section__num {
  font-family: 'Space Mono', monospace;
  font-size: 12px;
  color: #8A8F98;
  padding-top: 6px;
  letter-spacing: 0.06em;
}

.cs-section__body {
  min-width: 0;
  display: flex;
  flex-direction: column;
  gap: 20px;
}

.cs-section__title {
  font-family: 'Space Mono', monospace;
  font-size: clamp(20px, 2.5vw, 32px);
  line-height: 1.2;
  letter-spacing: -0.5px;
  margin-bottom: 4px;
}

.cs-section__body p {
  font-size: 15px;
  line-height: 1.75;
  color: #B8B8B8;
  max-width: 100%;
}

/* ── SUB TITLES ── */
.sub-title {
  font-family: 'Space Mono', monospace;
  font-size: 16px;
  letter-spacing: -0.3px;
  color: white;
  margin-top: 12px;
}

/* ── THREE COLUMN GRID ── */
.three-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 16px;
  margin-top: 8px;
}

/* ── INFO CARDS (findings / structure) ── */
.info-card {
  background: #13161E;
  border: 1px solid rgba(255, 255, 255, 0.08);
  /* border-radius: 12px; */
  padding: 24px;
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.info-card__icon {
  font-size: 22px;
  opacity: 0.5;
}

.info-card h3 {
  font-family: 'Space Mono', monospace;
  font-size: 14px;
  color: white;
  letter-spacing: 0.02em;
}

.info-card p {
  font-size: 14px !important;
  color: #8A8F98 !important;
  line-height: 1.6 !important;
}

/* ── INSIGHT CARDS ── */
.insight-card {
  background: #13161E;
  border: 1px solid rgba(55, 94, 204, 0.3);
  /* border-radius: 12px; */
  padding: 24px;
}

.insight-card p {
  font-size: 14px !important;
  color: #B8B8B8 !important;
  line-height: 1.65 !important;
}

/* ── IDEA CARDS ── */
.ideas {
  margin-top: 16px;
}

.idea-card {
  background: #13161E;
  border: 1px solid rgba(255, 255, 255, 0.08);
  /* border-radius: 12px; */
  padding: 24px;
  display: flex;
  flex-direction: column;
  gap: 10px;
  transition: border-color 0.3s ease;
}

.idea-card:hover {
  border-color: rgba(255, 255, 255, 0.2);
}

.idea-card--chosen {
  background: #375ECC;
  border-color: #375ECC;
}

.idea-card__num {
  font-family: 'Space Mono', monospace;
  font-size: 11px;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: #8A8F98;
}

.idea-card--chosen .idea-card__num {
  color: rgba(255, 255, 255, 0.7);
}

.idea-card h3 {
  font-family: 'Space Mono', monospace;
  font-size: 14px;
  color: white;
}

.idea-card p {
  font-size: 14px;
  color: #8A8F98;
  line-height: 1.6;
}

.idea-card--chosen p {
  color: rgba(255, 255, 255, 0.8);
}

/* ── CONCLUSION NOTE ── */
.conclusion-note {
  background: #13161E;
  border-left: 3px solid #375ECC;
  /* border-radius: 0 8px 8px 0; */
  padding: 16px 20px;
  font-size: 14px !important;
  color: #B8B8B8 !important;
  line-height: 1.7 !important;
  max-width: 100% !important;
}

/* ── OBJECTIVES ── */
.objectives {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 14px;
}

.objectives li {
  font-size: 15px;
  color: #B8B8B8;
  line-height: 1.65;
  padding-left: 20px;
  position: relative;
}

.objectives li::before {
  content: '→';
  position: absolute;
  left: 0;
  color: #375ECC;
}

.objectives strong {
  color: white;
}

/* ── TABLE ── */
.table-wrap {
  overflow-x: auto;
  /* border-radius: 12px; */
  border: 1px solid rgba(255, 255, 255, 0.08);
}

.comp-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 14px;
}

.comp-table th {
  background: #13161E;
  font-family: 'Space Mono', monospace;
  font-size: 11px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  text-align: left;
  padding: 14px 18px;
  color: #8A8F98;
  font-weight: 400;
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
}

.comp-table th:last-child {
  color: #375ECC;
}

.comp-table td {
  padding: 14px 18px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.05);
  vertical-align: top;
  color: #B8B8B8;
  line-height: 1.5;
}

.comp-table tr:last-child td {
  border-bottom: none;
}

.comp-table tbody tr:hover td {
  background: rgba(255, 255, 255, 0.02);
}

.comp-table td:first-child {
  font-family: 'Space Mono', monospace;
  font-size: 12px;
  color: #8A8F98;
  letter-spacing: 0.04em;
  white-space: nowrap;
}

.comp-table td:last-child {
  color: white;
}

/* ── LESSONS ── */
.lessons {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 14px;
}

.lessons li {
  font-size: 15px;
  color: #B8B8B8;
  line-height: 1.65;
  padding-left: 20px;
  position: relative;
}

.lessons li::before {
  content: '→';
  position: absolute;
  left: 0;
  color: #375ECC;
}

/* ── TIMELINE ── */
.timeline {
  margin-top: 8px;
}

.timeline__track {
  display: grid;
  grid-template-columns: repeat(10, 1fr);
  gap: 6px;
  margin-bottom: 10px;
}

.timeline__phase {
  padding: 14px 16px;
  /* border-radius: 10px; */
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.tl__label {
  font-family: 'Space Mono', monospace;
  font-size: 11px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: white;
}

.tl__desc {
  font-size: 12px;
  line-height: 1.45;
  color: #B8B8B8;
}

.tl--research { background: #1a2340; }
.tl--design   { background: #1F2228; }
.tl--impl     { background: #1a2340; }
.tl--test     { background: #1F2228; }

.timeline__weeks {
  display: grid;
  grid-template-columns: repeat(10, 1fr);
  border-top: 1px solid rgba(255, 255, 255, 0.08);
  padding-top: 8px;
}

/* Each label spans 2 columns to align with the phase blocks above */
.timeline__weeks span {
  grid-column: span 2;
  font-family: 'Space Mono', monospace;
  font-size: 11px;
  color: #8A8F98;
  letter-spacing: 0.06em;
  text-align: center;
}


/* ── SUMMARY LAYOUT ── */
.summary-layout {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 40px;
  align-items: center;
}

.mockup-slot {
  background: #375ECC;
  /* border-radius: 16px 16px 16px 16px; */
  overflow: hidden;
  height: 320px;
  display: flex;
  align-items: flex-end;
  justify-content: center;
}

.mockup-slot img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: bottom center;
}

@media (max-width: 768px) {
  .summary-layout {
    grid-template-columns: 1fr;
  }
}

/* ── FOOTER ── */
.footer {
  position: relative;
  background: #05070D;
  margin: 120px 20px;
  display: flex;
  justify-content: center;
  align-items: center;
}

.footer-fade {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 200px;
  background: linear-gradient(to top, #0F1013 0%, rgba(5, 7, 13, 0.55) 60%, #0F1013 100%);
}

.footer-inner {
  display: flex;
  gap: 120px;
  justify-content: center;
  align-items: center;
  z-index: 2;
  position: relative;
}

.footer-item {
  display: flex;
  flex-direction: column;
  gap: 8px;
  text-align: center;
}

.footer-item .label {
  font-family: 'Space Mono', monospace;
  font-size: 14px;
  color: #8A8F98;
}

.footer-item .value {
  font-size: 16px;
  color: white;
  text-decoration: none;
}

.footer-item .link:hover {
  opacity: 0.7;
  transition: 0.3s ease;
}

/* ── RESPONSIVE ── */
@media (max-width: 1024px) {
  .cs-hero,
  .cs-main {
    padding-left: 32px;
    padding-right: 32px;
  }

  .cs-section--card {
    margin: 0 -24px;
    padding: 36px 24px;
  }

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

  .footer-inner {
    gap: 60px;
  }
}

@media (max-width: 768px) {
  .cs-hero {
    padding: 120px 24px 48px;
  }

  .cs-main {
    padding: 0 24px;
  }

  .cs-section {
    grid-template-columns: 1fr;
    gap: 12px;
    padding: 48px 0;
  }

  .cs-section--card {
    margin: 0;
    /* border-radius: 12px; */
  }

  .timeline__track {
    display: flex;
    flex-direction: column;
  }

  .timeline__weeks {
    display: none;
  }

  .footer-inner {
    flex-direction: column;
    gap: 32px;
    text-align: center;
  }

  .nav-links {
    gap: 20px;
  }
}

/* ── GALLERY ── */
.case-gallery {
  margin-top: 120px;
  padding: 0 80px;
}

.gallery-header {
  margin-bottom: 32px;
}

.gallery-label {
  font-family: 'Space Mono', monospace;
  font-size: 12px;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: #375ECC;
  display: block;
  margin-bottom: 12px;
}

.gallery-header h2 {
  font-family: 'Space Mono', monospace;
  font-size: clamp(24px, 2vw, 36px);
  color: white;
}

.gallery-grid {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: 16px;
}

.gallery-item {
  position: relative;
  /* border-radius: 16px; */
  overflow: hidden;
  cursor: pointer;
  height: 240px;
  background: #13161E;
  border: 1px solid rgba(255,255,255,0.08);
  transition: transform 0.3s ease, border-color 0.3s ease;
}

.gallery-item:hover {
  transform: translateY(-4px);
  border-color: rgba(55, 94, 204, 0.5);
}

.gallery-item img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

/* ── LIGHTBOX ── */
.lightbox {
  position: fixed;
  inset: 0;
  background: rgba(5, 7, 13, 0.92);
  display: flex;
  justify-content: center;
  align-items: center;
  z-index: 9999;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.3s ease;
  padding: 40px;
}

.lightbox.active {
  opacity: 1;
  pointer-events: auto;
}

.lightbox-img {
  max-width: 90%;
  max-height: 90%;
  /* border-radius: 20px; */
  object-fit: contain;
}

.lightbox-close {
  position: absolute;
  top: 32px;
  right: 40px;
  color: white;
  font-size: 42px;
  cursor: pointer;
  font-family: 'Space Mono', monospace;
}

/* ── RESPONSIVE ── */
@media (max-width: 1100px) {
  .gallery-grid {
    grid-template-columns: repeat(3, 1fr);
  }
}

@media (max-width: 768px) {
  .case-gallery {
    padding: 0 24px;
    margin-top: 80px;
  }

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

  .gallery-item {
    height: 260px;
  }
}

/* ── LIGHTBOX CONTENT ── */
.lightbox-content {
  width: 100%;
  max-width: 1400px;
  display: grid;
  grid-template-columns: 1.4fr 0.7fr;
  gap: 40px;
  align-items: center;
}

.lightbox-info {
  background: #13161E;
  border: 1px solid rgba(255,255,255,0.08);
  /* border-radius: 20px; */
  padding: 40px;
}

.lightbox-small {
  font-family: 'Space Mono', monospace;
  font-size: 11px;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: #375ECC;
  display: block;
  margin-bottom: 18px;
}

.lightbox-info h3 {
  font-family: 'Space Mono', monospace;
  font-size: 28px;
  line-height: 1.2;
  margin-bottom: 20px;
  color: white;
}

.lightbox-info p {
  color: #8A8F98;
  font-size: 15px;
  line-height: 1.8;
}

@media (max-width: 900px) {
  .lightbox-content {
    grid-template-columns: 1fr;
  }

  .lightbox-info {
    padding: 28px;
  }

  .lightbox-info h3 {
    font-size: 22px;
  }
}