/* ============================================
   CASE STUDY PAGES — Joy Etana Portfolio
============================================ */

/* ── Back button in navbar ── */
.cs-back {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 0.82rem;
  font-weight: 600;
  color: var(--muted);
  text-decoration: none;
  border: 1.5px solid var(--border-h);
  padding: 7px 16px;
  border-radius: 8px;
  transition: var(--trans);
  font-family: var(--mono);
  letter-spacing: 0.04em;
}
.cs-back:hover {
  color: var(--gold);
  border-color: var(--gold);
  background: var(--gold-dim);
}

/* ── Hero ── */
.cs-hero {
  position: relative;
  padding: 160px 5% 90px;
  background: var(--bg);
  overflow: hidden;
}
.cs-hero::before {
  content: '';
  position: absolute;
  inset: 0;
  background:
    linear-gradient(rgba(212,175,55,0.04) 1px, transparent 1px),
    linear-gradient(90deg, rgba(212,175,55,0.04) 1px, transparent 1px);
  background-size: 40px 40px;
  pointer-events: none;
}
html[data-theme="light"] .cs-hero::before {
  background:
    linear-gradient(rgba(140,100,0,0.06) 1px, transparent 1px),
    linear-gradient(90deg, rgba(140,100,0,0.06) 1px, transparent 1px);
  background-size: 40px 40px;
}

.cs-hero-inner {
  max-width: 800px;
  position: relative;
  z-index: 1;
}

.cs-eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-family: var(--mono);
  font-size: 0.72rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--gold);
  margin-bottom: 22px;
}
.cs-eyebrow::before {
  content: '';
  display: block;
  width: 28px;
  height: 2px;
  background: var(--gold);
}

.cs-hero-title {
  font-family: var(--disp);
  font-size: clamp(2.4rem, 6vw, 4rem);
  font-weight: 800;
  line-height: 1.1;
  color: var(--text);
  margin: 0 0 20px;
}
.cs-hero-title em {
  color: var(--gold);
  font-style: normal;
}

.cs-hero-tagline {
  font-size: 1.1rem;
  color: var(--muted);
  line-height: 1.7;
  max-width: 620px;
  margin-bottom: 30px;
}

.cs-meta-row {
  display: flex;
  flex-wrap: wrap;
  gap: 20px;
  margin-bottom: 36px;
}
.cs-meta-item {
  display: flex;
  align-items: center;
  gap: 7px;
  font-family: var(--mono);
  font-size: 0.76rem;
  color: var(--muted);
}
.cs-meta-item i { color: var(--gold); }

.cs-hero-btns {
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
}

/* ── Full-width project image ── */
.cs-cover {
  width: 100%;
  max-height: 600px;
  overflow: hidden;
  position: relative;
}
.cs-cover img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center top;
  display: block;
}
.cs-cover::after {
  content: '';
  position: absolute;
  bottom: 0; left: 0; right: 0;
  height: 180px;
  background: linear-gradient(transparent, var(--surface));
  pointer-events: none;
}

/* ── Section containers ── */
.cs-section {
  padding: 90px 5%;
  background: var(--surface);
}
.cs-section.alt {
  background: var(--bg);
}

.cs-container {
  max-width: 1000px;
  margin: 0 auto;
}

.cs-label {
  font-family: var(--mono);
  font-size: 0.72rem;
  color: var(--gold);
  letter-spacing: 0.14em;
  text-transform: uppercase;
  margin-bottom: 12px;
}

.cs-section-title {
  font-family: var(--disp);
  font-size: clamp(1.6rem, 3vw, 2.2rem);
  font-weight: 700;
  color: var(--text);
  margin: 0 0 20px;
  line-height: 1.2;
}
.cs-section-title em {
  color: var(--gold);
  font-style: normal;
}

.cs-body {
  font-size: 0.97rem;
  line-height: 1.8;
  color: var(--muted);
  max-width: 760px;
}
.cs-body + .cs-body { margin-top: 16px; }

/* ── Overview grid ── */
.cs-overview-grid {
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 60px;
  align-items: start;
}
.cs-stats-col {
  display: flex;
  flex-direction: column;
  gap: 24px;
  min-width: 160px;
}
.cs-stat-block {
  text-align: center;
  padding: 20px;
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 12px;
}
.cs-stat-block .num {
  display: block;
  font-family: var(--mono);
  font-size: 1.9rem;
  font-weight: 700;
  color: var(--gold);
  line-height: 1;
}
.cs-stat-block .lbl {
  display: block;
  font-size: 0.72rem;
  color: var(--muted);
  text-transform: uppercase;
  letter-spacing: 0.1em;
  margin-top: 6px;
}

/* ── Challenge / Solution two-col ── */
.cs-two-col {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 40px;
  margin-top: 36px;
}
.cs-col-card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 14px;
  padding: 32px 28px;
}
.cs-col-card h3 {
  font-family: var(--mono);
  font-size: 0.78rem;
  color: var(--gold);
  text-transform: uppercase;
  letter-spacing: 0.12em;
  margin: 0 0 14px;
}
.cs-col-card p {
  font-size: 0.9rem;
  line-height: 1.75;
  color: var(--muted);
  margin: 0;
}

/* ── Features grid ── */
.cs-features-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
  margin-top: 40px;
}
.cs-feature-card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 14px;
  padding: 28px 24px;
  transition: var(--trans);
}
.cs-feature-card:hover {
  border-color: var(--border-h);
  transform: translateY(-4px);
  box-shadow: 0 12px 36px rgba(0,0,0,0.25);
}
.cs-feature-icon {
  width: 44px; height: 44px;
  border-radius: 10px;
  background: var(--gold-dim);
  border: 1px solid var(--border-h);
  display: flex; align-items: center; justify-content: center;
  color: var(--gold);
  font-size: 1.1rem;
  margin-bottom: 16px;
}
.cs-feature-card h3 {
  font-size: 0.97rem;
  font-weight: 700;
  color: var(--text);
  margin: 0 0 8px;
}
.cs-feature-card p {
  font-size: 0.84rem;
  line-height: 1.65;
  color: var(--muted);
  margin: 0;
}

/* ── Tech stack ── */
.cs-tech-grid {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  margin-top: 32px;
}
.cs-tech-chip {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 12px 20px;
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 10px;
  transition: var(--trans);
}
.cs-tech-chip:hover { border-color: var(--gold); background: var(--gold-dim); }
.cs-tech-chip i { color: var(--gold); font-size: 1.1rem; }
.cs-tech-chip-info strong {
  display: block;
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--text);
}
.cs-tech-chip-info span {
  font-size: 0.75rem;
  color: var(--muted);
  font-family: var(--mono);
}

/* ── Gallery / screenshot ── */
.cs-gallery {
  margin-top: 36px;
  border-radius: 16px;
  overflow: hidden;
  border: 1px solid var(--border);
  box-shadow: 0 20px 60px rgba(0,0,0,0.35);
}
.cs-gallery img {
  width: 100%;
  display: block;
  object-fit: cover;
}

/* ── Results list ── */
.cs-results-list {
  list-style: none;
  padding: 0;
  margin: 28px 0 0;
  display: flex;
  flex-direction: column;
  gap: 14px;
}
.cs-results-list li {
  display: flex;
  align-items: flex-start;
  gap: 14px;
  font-size: 0.92rem;
  line-height: 1.65;
  color: var(--muted);
}
.cs-results-list li::before {
  content: '';
  flex-shrink: 0;
  width: 20px; height: 20px;
  background: var(--gold-dim);
  border: 1px solid var(--border-h);
  border-radius: 50%;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 20 20' fill='%23d4af37'%3E%3Cpath fill-rule='evenodd' d='M16.707 5.293a1 1 0 010 1.414l-8 8a1 1 0 01-1.414 0l-4-4a1 1 0 011.414-1.414L8 12.586l7.293-7.293a1 1 0 011.414 0z' clip-rule='evenodd'/%3E%3C/svg%3E");
  background-size: 14px;
  background-repeat: no-repeat;
  background-position: center;
  margin-top: 2px;
}

/* ── Next project CTA ── */
.cs-cta-section {
  padding: 90px 5%;
  background: var(--bg);
  text-align: center;
}
.cs-cta-label {
  font-family: var(--mono);
  font-size: 0.72rem;
  color: var(--gold);
  letter-spacing: 0.14em;
  text-transform: uppercase;
  margin-bottom: 14px;
}
.cs-cta-section h2 {
  font-family: var(--disp);
  font-size: 2rem;
  font-weight: 700;
  color: var(--text);
  margin: 0 0 10px;
}
.cs-cta-section p {
  color: var(--muted);
  font-size: 0.92rem;
  margin: 0 0 30px;
}
.cs-cta-btns {
  display: flex;
  gap: 14px;
  justify-content: center;
  flex-wrap: wrap;
}

/* ── Divider ── */
.cs-divider {
  width: 60px;
  height: 3px;
  background: var(--gold);
  border-radius: 2px;
  margin: 20px 0 28px;
}

/* ── Responsive ── */
@media (max-width: 900px) {
  .cs-overview-grid { grid-template-columns: 1fr; gap: 36px; }
  .cs-stats-col { flex-direction: row; flex-wrap: wrap; }
  .cs-stat-block { flex: 1; min-width: 110px; }
  .cs-two-col { grid-template-columns: 1fr; gap: 20px; }
  .cs-features-grid { grid-template-columns: 1fr 1fr; }
  .cs-tech-grid { gap: 10px; }
}

@media (max-width: 700px) {
  .cs-hero { padding: 120px 5% 56px; }
  .cs-section { padding: 64px 5%; }
  .cs-cta-section { padding: 64px 5%; }
  .cs-hero-title { font-size: 2rem; }
  .cs-hero-tagline { font-size: 1rem; }
  .cs-section-title { font-size: 1.5rem; }
  .cs-cta-section h2 { font-size: 1.6rem; }
  .cs-meta-row { gap: 12px 18px; }
  .cs-meta-item { font-size: 0.72rem; }
  .cs-col-card { padding: 24px 20px; }
  .cs-stat-block .num { font-size: 1.6rem; }
}

@media (max-width: 600px) {
  .cs-hero { padding: 110px 5% 50px; }
  .cs-section { padding: 52px 5%; }
  .cs-cta-section { padding: 56px 5%; }
  .cs-features-grid { grid-template-columns: 1fr; }
  .cs-hero-title { font-size: 1.75rem; }
  .cs-hero-tagline { font-size: 0.95rem; }
  .cs-section-title { font-size: 1.35rem; }
  .cs-body { font-size: 0.92rem; }
  .cs-tech-chip { width: calc(50% - 5px); }
  /* Hero buttons stack full-width */
  .cs-hero-btns { flex-direction: column; align-items: stretch; }
  .cs-hero-btns .btn-primary,
  .cs-hero-btns .btn-ghost { text-align: center; justify-content: center; display: flex; }
  /* CTA buttons stack full-width */
  .cs-cta-btns { flex-direction: column; align-items: stretch; }
  .cs-cta-btns .btn-primary,
  .cs-cta-btns .btn-ghost { text-align: center; justify-content: center; display: flex; }
  .cs-stat-block .num { font-size: 1.4rem; }
  .cs-cover { max-height: 260px; }
}

@media (max-width: 480px) {
  /* Compact navbar — show icon only for back button */
  .cs-back { font-size: 0; padding: 8px 11px; gap: 0; }
  .cs-back i { font-size: 0.95rem; }
  .cs-hero { padding: 100px 4% 44px; }
  .cs-section { padding: 44px 4%; }
  .cs-cta-section { padding: 48px 4%; }
  .cs-hero-title { font-size: 1.55rem; line-height: 1.2; }
  .cs-section-title { font-size: 1.25rem; }
  .cs-cta-section h2 { font-size: 1.4rem; }
  .cs-tech-chip { width: 100%; }
  .cs-two-col { gap: 14px; }
  .cs-col-card { padding: 20px 16px; }
  .cs-feature-card { padding: 22px 18px; }
  .cs-meta-row { gap: 10px 14px; }
  .cs-results-list li { font-size: 0.88rem; }
}

@media (max-width: 360px) {
  .cs-hero-title { font-size: 1.4rem; }
  .cs-section-title { font-size: 1.15rem; }
  .cs-hero-tagline { font-size: 0.88rem; }
}

/* ============================================
   ALL PROJECTS PAGE
============================================ */
.all-proj-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 28px;
  margin-top: 20px;
}

.all-proj-card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 16px;
  overflow: hidden;
  text-decoration: none;
  display: flex;
  flex-direction: column;
  transition: transform 0.3s ease, border-color 0.3s ease, box-shadow 0.3s ease;
}
.all-proj-card:hover {
  border-color: var(--accent);
  transform: translateY(-6px);
  box-shadow: 0 16px 48px rgba(0,0,0,0.3);
}

.all-proj-img {
  height: 190px;
  overflow: hidden;
}
.all-proj-img img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center top;
  transition: transform 0.4s ease;
}
.all-proj-card:hover .all-proj-img img { transform: scale(1.05); }

.all-proj-body {
  padding: 22px 22px 20px;
  display: flex;
  flex-direction: column;
  gap: 10px;
  flex: 1;
}

.all-proj-top {
  display: flex;
  align-items: center;
  gap: 10px;
}
.all-proj-num {
  font-family: var(--mono);
  font-size: 0.68rem;
  color: var(--muted);
  letter-spacing: 0.12em;
}
.all-proj-badge {
  font-family: var(--mono);
  font-size: 0.66rem;
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  padding: 2px 9px;
  border-radius: 20px;
  border: 1px solid;
}

.all-proj-title {
  font-family: var(--disp);
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--text);
  margin: 0;
  line-height: 1.25;
}

.all-proj-desc {
  font-size: 0.84rem;
  line-height: 1.65;
  color: var(--muted);
  margin: 0;
  flex: 1;
}

.all-proj-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
}
.all-proj-tags span {
  padding: 2px 9px;
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: 4px;
  font-family: var(--mono);
  font-size: 0.68rem;
  color: var(--muted);
}

.all-proj-cta {
  font-family: var(--mono);
  font-size: 0.75rem;
  font-weight: 600;
  display: flex;
  align-items: center;
  gap: 7px;
  transition: gap 0.25s ease;
  margin-top: 4px;
}
.all-proj-card:hover .all-proj-cta { gap: 12px; }

@media (max-width: 960px) { .all-proj-grid { grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 560px) { .all-proj-grid { grid-template-columns: 1fr; } }