/* ==========================================================================
   Page-specific styles: Work, Project Case Study, About, Contact
   ========================================================================== */

/* ---- Work page filter bar ---- */

.work-filter {
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
  justify-content: center;
  margin-bottom: 60px;
}

.filter-btn {
  padding: 10px 22px;
  border-radius: 100px;
  border: 1px solid var(--border-subtle);
  font-size: 14px;
  font-weight: 500;
  color: var(--text-secondary);
  transition: all 0.3s var(--ease);
}

.filter-btn:hover {
  color: var(--text-primary);
  border-color: var(--border-strong);
}

.filter-btn.active {
  background: var(--accent);
  border-color: var(--accent);
  color: #fff;
}

.work-card[hidden] { display: none; }

/* ==========================================================================
   Project Case Study Page
   ========================================================================== */

.case-hero {
  padding-top: 170px;
  padding-bottom: 0;
  position: relative;
  overflow: hidden;
}

.case-hero-top {
  text-align: center;
  max-width: 720px;
  margin: 0 auto 50px;
  position: relative;
  z-index: 1;
}

.case-meta {
  display: flex;
  justify-content: center;
  gap: 10px;
  flex-wrap: wrap;
  margin-bottom: 22px;
}

.case-hero h1 {
  font-size: clamp(32px, 5vw, 54px);
  margin-bottom: 20px;
}

.case-hero .lede {
  color: var(--text-secondary);
  font-size: 17px;
  max-width: 580px;
  margin: 0 auto 34px;
}

.case-cover {
  max-width: 1160px;
  margin: 0 auto;
  padding-bottom: 100px;
}

/* ---- Overview / stats strip under hero ---- */

.case-info-strip {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1px;
  background: var(--border-subtle);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  overflow: hidden;
  margin-bottom: var(--section-space);
}

.case-info-item {
  background: var(--bg-secondary);
  padding: 30px 26px;
}

.case-info-item h4 {
  font-family: var(--font-body);
  font-size: 12.5px;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--text-tertiary);
  font-weight: 600;
  margin-bottom: 10px;
}

.case-info-item p {
  font-size: 15px;
  color: var(--text-primary);
}

@media (max-width: 760px) {
  .case-info-strip { grid-template-columns: repeat(2, 1fr); }
}

/* ---- Overview text block ---- */

.overview-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 60px;
}

.overview-block h3 {
  font-size: 15px;
  color: var(--accent);
  text-transform: uppercase;
  letter-spacing: 0.06em;
  margin-bottom: 14px;
  font-family: var(--font-body);
  font-weight: 600;
}

.overview-block p {
  color: var(--text-secondary);
  font-size: 15.5px;
}

@media (max-width: 760px) {
  .overview-grid { grid-template-columns: 1fr; gap: 32px; }
}

/* ---- Feature showcase (zig-zag) ---- */

.feature-section {
  display: grid;
  grid-template-columns: 0.85fr 1.15fr;
  gap: 70px;
  align-items: center;
  padding: 90px 0;
  border-top: 1px solid var(--border-subtle);
}

.feature-section.reverse {
  grid-template-columns: 1.15fr 0.85fr;
}

.feature-section:first-of-type {
  border-top: none;
}

.feature-section.reverse .feature-text {
  order: 2;
}

.feature-section.reverse .feature-visual {
  order: 1;
}

.feature-label {
  display: inline-block;
  font-size: 12.5px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--accent);
  margin-bottom: 16px;
}

.feature-text h3 {
  font-size: clamp(24px, 3vw, 32px);
  margin-bottom: 16px;
}

.feature-text > p {
  color: var(--text-secondary);
  font-size: 15.5px;
  margin-bottom: 26px;
}

.feature-highlights {
  display: grid;
  gap: 14px;
}

.feature-highlights li {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  font-size: 14.5px;
  color: var(--text-secondary);
}

.feature-highlights svg {
  flex-shrink: 0;
  margin-top: 2px;
  color: var(--accent);
}

.feature-visual {
  position: relative;
}

.feature-visual .browser-mockup {
  transform: perspective(1200px) rotateY(-4deg) rotateX(2deg);
  transition: transform 0.6s var(--ease);
}

.feature-section.reverse .feature-visual .browser-mockup {
  transform: perspective(1200px) rotateY(4deg) rotateX(2deg);
}

.feature-visual:hover .browser-mockup {
  transform: perspective(1200px) rotateY(0) rotateX(0);
}

.floating-badge.badge-1 { top: -18px; right: -18px; }
.floating-badge.badge-2 { bottom: -18px; left: -18px; }

@media (max-width: 900px) {
  .feature-section,
  .feature-section.reverse { grid-template-columns: 1fr; gap: 36px; }
  .feature-section.reverse .feature-text,
  .feature-section.reverse .feature-visual { order: initial; }
  .floating-badge { display: none; }
}

/* ---- Generic browser mockup used across the case study ---- */

.browser-mockup {
  border-radius: var(--radius-md);
  border: 1px solid var(--border-subtle);
  background: var(--bg-secondary);
  overflow: hidden;
  box-shadow: 0 40px 90px -40px rgba(0,0,0,0.75);
}

.browser-mockup .mockup-bar { padding: 12px 16px; }

.mockup-shot {
  overflow: hidden;
  background: var(--bg-primary);
  max-height: 620px;
  position: relative;
}

.mockup-shot.zoomable { cursor: zoom-in; }

.mockup-shot.zoomable::after {
  content: '';
  position: absolute;
  inset: 0;
  background: rgba(0, 0, 0, 0);
  transition: background 0.3s var(--ease);
}

.mockup-shot.zoomable:hover::after { background: rgba(0, 0, 0, 0.12); }

.mockup-shot img {
  width: 100%;
  height: auto;
  display: block;
  object-fit: cover;
  object-position: top center;
}

.mockup-shot.shot-tall { max-height: 760px; }
.mockup-shot.shot-compact { max-height: 380px; }

/* ---- Problem / Solution & Challenges ---- */

.split-panels {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 24px;
}

.panel {
  padding: 40px;
  border-radius: var(--radius-lg);
  border: 1px solid var(--border-subtle);
  background: var(--bg-secondary);
}

.panel-label {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 12.5px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  margin-bottom: 18px;
}

.panel-label.problem { color: #ff6b6b; }
.panel-label.solution { color: var(--accent); }

.panel h3 {
  font-size: 20px;
  margin-bottom: 14px;
}

.panel p {
  color: var(--text-secondary);
  font-size: 15px;
}

.challenge-list {
  display: grid;
  gap: 20px;
}

.challenge-item {
  padding: 30px 34px;
  border-radius: var(--radius-md);
  border: 1px solid var(--border-subtle);
  background: var(--bg-secondary);
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 30px;
}

.challenge-item .ci-block span {
  display: block;
  font-size: 12px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--text-tertiary);
  margin-bottom: 10px;
}

.challenge-item .ci-block p {
  font-size: 15px;
  color: var(--text-secondary);
}

.challenge-item .ci-block.solution span { color: var(--accent); }

@media (max-width: 760px) {
  .split-panels { grid-template-columns: 1fr; }
  .challenge-item { grid-template-columns: 1fr; gap: 16px; }
}

/* ---- Results ---- */

.results-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
}

.result-card {
  padding: 32px;
  border-radius: var(--radius-md);
  border: 1px solid var(--border-subtle);
  background: var(--bg-secondary);
  display: flex;
  align-items: flex-start;
  gap: 16px;
}

.result-card svg {
  color: var(--accent);
  flex-shrink: 0;
  margin-top: 2px;
}

.result-card p {
  font-size: 15px;
  color: var(--text-primary);
  font-weight: 500;
}

@media (max-width: 760px) {
  .results-grid { grid-template-columns: 1fr 1fr; }
}
@media (max-width: 500px) {
  .results-grid { grid-template-columns: 1fr; }
}

/* ---- Gallery + lightbox ---- */

.gallery-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
}

.gallery-item {
  aspect-ratio: 4/3;
  border-radius: var(--radius-md);
  overflow: hidden;
  border: 1px solid var(--border-subtle);
  cursor: zoom-in;
  position: relative;
  background: var(--bg-secondary);
}

.gallery-item img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: top center;
  transition: transform 0.5s var(--ease);
}

.gallery-item:hover img { transform: scale(1.05); }

.gallery-item .gallery-icon {
  position: absolute;
  inset: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  color: #fff;
  opacity: 0;
  transition: opacity 0.3s var(--ease), transform 0.3s var(--ease);
}

.gallery-item::after {
  content: '';
  position: absolute;
  inset: 0;
  background: rgba(0,0,0,0.35);
  opacity: 0;
  transition: opacity 0.3s var(--ease);
}

.gallery-item:hover::after { opacity: 1; }
.gallery-item:hover .gallery-icon { opacity: 1; transform: scale(1.1); }

.lightbox-content img {
  width: 100%;
  height: 100%;
  object-fit: contain;
  background: var(--bg-primary);
}

@media (max-width: 760px) {
  .gallery-grid { grid-template-columns: repeat(2, 1fr); }
}

.lightbox {
  position: fixed;
  inset: 0;
  background: rgba(6, 6, 6, 0.92);
  backdrop-filter: blur(10px);
  z-index: 2000;
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.35s var(--ease);
}

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

.lightbox-content {
  width: min(900px, 88vw);
  aspect-ratio: 16/10;
  border-radius: var(--radius-md);
  overflow: hidden;
  border: 1px solid var(--border-strong);
  position: relative;
  background: var(--bg-secondary);
  transform: scale(0.94);
  transition: transform 0.35s var(--ease);
}

.lightbox.active .lightbox-content { transform: scale(1); }

.lightbox-close {
  position: absolute;
  top: -50px;
  right: 0;
  width: 40px;
  height: 40px;
  border-radius: 50%;
  border: 1px solid var(--border-strong);
  display: flex;
  align-items: center;
  justify-content: center;
  color: #fff;
}

/* ---- Next project / start similar ---- */

.next-project {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 30px;
  padding: 50px;
  border-radius: var(--radius-lg);
  border: 1px solid var(--border-subtle);
  background: var(--bg-secondary);
  flex-wrap: wrap;
}

.next-project-label {
  font-size: 13px;
  color: var(--text-tertiary);
  text-transform: uppercase;
  letter-spacing: 0.08em;
  margin-bottom: 10px;
}

.next-project h3 {
  font-size: 26px;
}

/* ==========================================================================
   About page
   ========================================================================== */

.values-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 24px;
}

.value-card {
  padding: 36px;
  border-radius: var(--radius-lg);
  border: 1px solid var(--border-subtle);
  background: var(--bg-secondary);
}

.value-card .num {
  font-family: var(--font-heading);
  color: var(--accent);
  font-size: 14px;
  margin-bottom: 18px;
}

.value-card h3 {
  font-size: 20px;
  margin-bottom: 10px;
}

.value-card p {
  color: var(--text-secondary);
  font-size: 15px;
}

@media (max-width: 700px) {
  .values-grid { grid-template-columns: 1fr; }
}

.about-story {
  display: grid;
  grid-template-columns: 0.8fr 1.2fr;
  gap: 60px;
  align-items: start;
}

.about-story p {
  color: var(--text-secondary);
  font-size: 16px;
  margin-bottom: 20px;
}

.about-story p:last-child { margin-bottom: 0; }

@media (max-width: 760px) {
  .about-story { grid-template-columns: 1fr; gap: 24px; }
}

/* ==========================================================================
   Contact page
   ========================================================================== */

.contact-channels {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
  max-width: 920px;
  margin: 0 auto;
}

.contact-channel {
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  gap: 16px;
  padding: 44px 28px;
  border-radius: var(--radius-lg);
  border: 1px solid var(--border-subtle);
  background: var(--bg-secondary);
  transition: transform 0.4s var(--ease), border-color 0.4s var(--ease);
}

.contact-channel:hover {
  transform: translateY(-4px);
  border-color: var(--accent);
}

.contact-channel .cii-icon {
  width: 52px;
  height: 52px;
  border-radius: 14px;
  background: var(--accent-dim);
  color: var(--accent);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

.contact-channel h4 {
  font-family: var(--font-body);
  font-size: 13px;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--text-tertiary);
  font-weight: 600;
}

.contact-channel p {
  font-size: 17px;
  font-weight: 600;
  color: var(--text-primary);
  word-break: break-word;
}

@media (max-width: 760px) {
  .contact-channels { grid-template-columns: 1fr; }
}

/* ==========================================================================
   Small phones (≤420px)
   ========================================================================== */

@media (max-width: 600px) {
  .lightbox-close {
    top: 12px;
    right: 12px;
    background: rgba(0, 0, 0, 0.55);
    backdrop-filter: blur(8px);
  }
}

@media (max-width: 420px) {
  .case-hero { padding-top: 130px; }
  .case-info-strip { grid-template-columns: 1fr; }
  .gallery-grid { grid-template-columns: 1fr; }

  .next-project { flex-direction: column; align-items: stretch; text-align: center; }
  .next-project .btn { width: 100%; justify-content: center; }

  .panel,
  .contact-channel,
  .value-card { padding: 28px 22px; }

  .challenge-item,
  .split-panels > .panel { padding: 24px 20px; }
}