/* ==========================================================================
   AJAY UPADHYAY STUDIO — PROJECT DETAIL / CASE STUDY STYLES
   Project: Mehendi Studio (Flagship Case)
   ========================================================================== */

/* Breadcrumb Bar */
.case-breadcrumb-bar {
  padding-top: 1.5rem;
  padding-bottom: 1.5rem;
  border-bottom: 1px solid var(--color-border-hairline);
  font-family: var(--font-mono);
  font-size: var(--text-mono-xs);
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.breadcrumb-back {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  color: var(--color-text-muted);
  transition: color var(--transition-fast);
}

.breadcrumb-back:hover {
  color: var(--color-accent);
}

.case-id-tag {
  color: var(--color-accent);
  letter-spacing: 0.1em;
}

/* Case Study Masthead */
.case-masthead {
  padding-top: clamp(3rem, 6vw, 5rem);
  padding-bottom: clamp(2.5rem, 5vw, 4rem);
}

.case-category-kicker {
  font-family: var(--font-mono);
  font-size: var(--text-mono-xs);
  color: var(--color-accent);
  text-transform: uppercase;
  letter-spacing: 0.12em;
  margin-bottom: 1.25rem;
}

.case-hero-title {
  font-family: var(--font-editorial);
  font-size: var(--text-display-xl);
  line-height: 1.08;
  color: var(--color-text-primary);
  margin-bottom: 2rem;
  max-width: 1080px;
}

/* 4-Column Metadata Matrix */
.case-meta-grid {
  display: grid;
  grid-template-columns: 1fr;
  border: 1px solid var(--color-border-hairline);
  background-color: var(--color-bg-surface);
  margin-top: 2rem;
}

@media (min-width: 640px) {
  .case-meta-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (min-width: 1024px) {
  .case-meta-grid {
    grid-template-columns: repeat(4, 1fr);
  }
}

.meta-cell {
  padding: 1.5rem;
  border-bottom: 1px solid var(--color-border-hairline);
  display: flex;
  flex-direction: column;
  gap: 0.4rem;
}

@media (min-width: 640px) {
  .meta-cell:nth-child(odd) {
    border-right: 1px solid var(--color-border-hairline);
  }
}

@media (min-width: 1024px) {
  .meta-cell {
    border-bottom: none;
    border-right: 1px solid var(--color-border-hairline);
  }
  .meta-cell:last-child {
    border-right: none;
  }
}

.meta-label {
  font-family: var(--font-mono);
  font-size: var(--text-mono-xs);
  color: var(--color-text-subtle);
  text-transform: uppercase;
  letter-spacing: 0.08em;
}

.meta-val {
  font-family: var(--font-sans);
  font-size: var(--text-body-sm);
  font-weight: 600;
  color: var(--color-text-primary);
}

.meta-link {
  color: var(--color-signal-green);
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
}

.meta-link:hover {
  text-decoration: underline;
}

/* ==========================================================================
   Visual Showcase: Dual-Device Architectural Mockup
   ========================================================================== */

.case-showcase-section {
  padding-bottom: clamp(4rem, 7vw, 7rem);
}

.dual-showcase-container {
  display: grid;
  grid-template-columns: 1fr;
  gap: 2rem;
  align-items: center;
}

@media (min-width: 980px) {
  .dual-showcase-container {
    grid-template-columns: 7fr 5fr;
  }
}

/* Desktop Browser Mockup Frame */
.browser-frame {
  background-color: var(--color-bg-surface);
  border: 1px solid var(--color-border-hairline);
  border-radius: 6px;
  overflow: hidden;
  box-shadow: 0 24px 60px rgba(0, 0, 0, 0.6);
}

.browser-topbar {
  background-color: var(--color-bg-subtle);
  padding: 0.75rem 1rem;
  display: flex;
  align-items: center;
  gap: 1rem;
  border-bottom: 1px solid var(--color-border-hairline);
}

.browser-dots {
  display: flex;
  gap: 6px;
}

.browser-dots span {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background-color: rgba(255, 255, 255, 0.2);
}

.browser-url-pill {
  flex: 1;
  background-color: var(--color-bg-root);
  border: 1px solid var(--color-border-hairline);
  padding: 0.25rem 0.75rem;
  border-radius: 3px;
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--color-text-muted);
}

.browser-viewport {
  padding: 1.5rem;
  background-color: #0F1217;
}

/* Simulated Booking UI Component */
.booking-sim-ui {
  display: flex;
  flex-direction: column;
  gap: 1.25rem;
}

.booking-sim-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  border-bottom: 1px solid var(--color-border-hairline);
  padding-bottom: 0.75rem;
}

.booking-slots-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 0.6rem;
}

.sim-slot {
  padding: 0.75rem;
  background-color: var(--color-bg-subtle);
  border: 1px solid var(--color-border-hairline);
  border-radius: 3px;
  text-align: center;
  font-family: var(--font-mono);
  font-size: 0.8rem;
  color: var(--color-text-muted);
  cursor: pointer;
}

.sim-slot.selected {
  background-color: var(--color-accent-soft);
  border-color: var(--color-accent);
  color: var(--color-accent);
  font-weight: 600;
}

.sim-slot.locked {
  opacity: 0.35;
  text-decoration: line-through;
  cursor: not-allowed;
}

/* Mobile WhatsApp Confirmation Mockup */
.mobile-phone-frame {
  max-width: 340px;
  margin: 0 auto;
  background-color: #111B21;
  border: 2px solid rgba(255, 255, 255, 0.15);
  border-radius: 28px;
  padding: 0.75rem;
  box-shadow: 0 20px 50px rgba(0, 0, 0, 0.7);
}

.phone-screen {
  background-color: #0B141A;
  border-radius: 20px;
  overflow: hidden;
  display: flex;
  flex-direction: column;
}

.phone-header {
  background-color: #202C33;
  padding: 0.75rem 1rem;
  display: flex;
  align-items: center;
  gap: 0.75rem;
  color: #E9EDEF;
  font-size: 0.85rem;
  font-weight: 600;
}

.phone-avatar {
  width: 32px;
  height: 32px;
  border-radius: 50%;
  background-color: #00A884;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.75rem;
  color: #FFF;
}

.chat-bubble-container {
  padding: 1rem;
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}

.wa-bubble {
  background-color: #005C4B;
  color: #E9EDEF;
  padding: 0.85rem 1rem;
  border-radius: 8px 8px 0px 8px;
  font-size: 0.8rem;
  line-height: 1.5;
  align-self: flex-end;
  box-shadow: 0 1px 3px rgba(0,0,0,0.3);
}

.wa-badge {
  display: inline-block;
  font-family: var(--font-mono);
  font-size: 0.65rem;
  background-color: rgba(255, 255, 255, 0.15);
  padding: 0.15rem 0.4rem;
  border-radius: 2px;
  margin-bottom: 0.4rem;
}

/* ==========================================================================
   Section: The Operational Challenge (3 Bottlenecks)
   ========================================================================== */

.case-narrative-section {
  padding-top: clamp(4rem, 7vw, 7rem);
  padding-bottom: clamp(4rem, 7vw, 7rem);
  border-top: 1px solid var(--color-border-hairline);
}

.challenge-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1.5rem;
  margin-top: 2.5rem;
}

@media (min-width: 768px) {
  .challenge-grid {
    grid-template-columns: repeat(3, 1fr);
  }
}

.challenge-card {
  background-color: var(--color-bg-surface);
  border: 1px solid var(--color-border-hairline);
  padding: 2rem;
  display: flex;
  flex-direction: column;
}

.challenge-num {
  font-family: var(--font-mono);
  font-size: var(--text-mono-xs);
  color: var(--color-accent);
  margin-bottom: 1rem;
}

.challenge-title {
  font-family: var(--font-editorial);
  font-size: 1.5rem;
  line-height: 1.25;
  color: var(--color-text-primary);
  margin-bottom: 0.75rem;
}

.challenge-text {
  font-family: var(--font-sans);
  font-size: var(--text-body-sm);
  color: var(--color-text-muted);
  line-height: 1.6;
}

/* ==========================================================================
   Section: System Architecture Flow Diagram
   ========================================================================== */

.architecture-diagram-box {
  background-color: var(--color-bg-surface);
  border: 1px solid var(--color-border-hairline);
  padding: clamp(1.5rem, 3vw, 2.75rem);
  margin-top: 2.5rem;
  position: relative;
  overflow-x: auto;
}

.arch-flow-row {
  display: flex;
  align-items: center;
  gap: 1.25rem;
  min-width: 860px;
  justify-content: space-between;
}

.arch-node {
  flex: 1;
  background-color: var(--color-bg-root);
  border: 1px solid var(--color-border-hairline);
  padding: 1.25rem;
  border-radius: 4px;
  display: flex;
  flex-direction: column;
  gap: 0.35rem;
}

.arch-node.highlight {
  border-color: var(--color-accent);
  background-color: var(--color-accent-soft);
}

.node-step {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  color: var(--color-accent);
}

.node-title {
  font-family: var(--font-sans);
  font-size: 0.9rem;
  font-weight: 600;
  color: var(--color-text-primary);
}

.node-desc {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--color-text-muted);
}

.arch-connector {
  display: flex;
  flex-direction: column;
  align-items: center;
  font-family: var(--font-mono);
  font-size: 0.7rem;
  color: var(--color-text-subtle);
}

.arch-connector span {
  font-size: 1.25rem;
  color: var(--color-accent);
}

/* ==========================================================================
   Section: Technical Deep Dives (Code & Webhook Logic)
   ========================================================================== */

.deepdives-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 2rem;
  margin-top: 2.5rem;
}

.deepdive-card {
  background-color: var(--color-bg-surface);
  border: 1px solid var(--color-border-hairline);
  padding: clamp(1.5rem, 3vw, 2.5rem);
  display: grid;
  grid-template-columns: 1fr;
  gap: 2rem;
}

@media (min-width: 960px) {
  .deepdive-card {
    grid-template-columns: 1.1fr 0.9fr;
  }
}

.deepdive-content {
  display: flex;
  flex-direction: column;
  justify-content: center;
}

.deepdive-title {
  font-family: var(--font-editorial);
  font-size: var(--text-h2);
  line-height: 1.2;
  margin-bottom: 1rem;
}

.deepdive-desc {
  font-family: var(--font-sans);
  font-size: var(--text-body-sm);
  color: var(--color-text-muted);
  line-height: 1.65;
  margin-bottom: 1.25rem;
}

.code-ledger-box {
  background-color: #0A0C0F;
  border: 1px solid var(--color-border-hairline);
  padding: 1.25rem;
  border-radius: 4px;
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: #C6D0F5;
  line-height: 1.6;
  overflow-x: auto;
}

.code-ledger-header {
  font-size: 0.7rem;
  color: var(--color-accent);
  padding-bottom: 0.5rem;
  margin-bottom: 0.75rem;
  border-bottom: 1px solid var(--color-border-hairline);
  display: flex;
  justify-content: space-between;
}

/* ==========================================================================
   Section: Verified Outcomes
   ========================================================================== */

.outcomes-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1.5rem;
  margin-top: 2.5rem;
}

@media (min-width: 640px) {
  .outcomes-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (min-width: 1024px) {
  .outcomes-grid {
    grid-template-columns: repeat(4, 1fr);
  }
}

.outcome-card {
  background-color: var(--color-bg-surface);
  border: 1px solid var(--color-border-hairline);
  padding: 2rem;
  display: flex;
  flex-direction: column;
}

.outcome-metric {
  font-family: var(--font-mono);
  font-size: 2.5rem;
  font-weight: 700;
  color: var(--color-accent);
  line-height: 1;
  margin-bottom: 0.75rem;
}

.outcome-label {
  font-family: var(--font-mono);
  font-size: var(--text-mono-xs);
  text-transform: uppercase;
  color: var(--color-text-subtle);
  letter-spacing: 0.08em;
  margin-bottom: 0.5rem;
}

.outcome-desc {
  font-family: var(--font-sans);
  font-size: var(--text-body-sm);
  color: var(--color-text-muted);
  line-height: 1.5;
}

/* ==========================================================================
   Case Navigation & Next Action
   ========================================================================== */

.case-nav-section {
  padding-top: 4rem;
  padding-bottom: 6rem;
  border-top: 1px solid var(--color-border-hairline);
}

.case-nav-card {
  background-color: var(--color-bg-surface);
  border: 1px solid var(--color-border-hairline);
  padding: clamp(2rem, 4vw, 3.5rem);
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
  align-items: flex-start;
}

@media (min-width: 768px) {
  .case-nav-card {
    flex-direction: row;
    justify-content: space-between;
    align-items: center;
  }
}

.case-nav-next-label {
  font-family: var(--font-mono);
  font-size: var(--text-mono-xs);
  color: var(--color-accent);
  letter-spacing: 0.1em;
  text-transform: uppercase;
  margin-bottom: 0.5rem;
}

.case-nav-next-title {
  font-family: var(--font-editorial);
  font-size: var(--text-h2);
  line-height: 1.2;
}