/* Shared case study page styles */

html {
  scroll-behavior: smooth;
}

body {
  --case-card: #ffffff;
  --case-card-strong: #eef5ff;
  --case-border: rgba(20, 99, 204, 0.16);
  --case-border-strong: rgba(20, 99, 204, 0.35);
  --case-error: #be123c;
  --case-success: #15803d;
  background: var(--bg);
  color: var(--ink);
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
  line-height: 1.7;
  overflow-x: hidden;
}

[data-theme="dark"] body {
  --case-card: rgba(255, 255, 255, 0.04);
  --case-card-strong: rgba(255, 255, 255, 0.07);
  --case-border: rgba(255, 255, 255, 0.08);
  --case-border-strong: rgba(77, 159, 255, 0.28);
  --case-error: #fb7185;
  --case-success: #34d399;
}

.case-glow {
  position: fixed;
  inset: 0;
  z-index: -1;
  background:
    radial-gradient(circle at 72% 18%, rgba(77, 159, 255, 0.07), transparent 42%),
    radial-gradient(circle at 18% 78%, rgba(52, 211, 153, 0.045), transparent 36%);
  pointer-events: none;
}

.case-back {
  display: flex;
  align-items: center;
  gap: 0.45rem;
  width: fit-content;
  color: var(--blue);
  text-decoration: none;
  font-size: 0.78rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  margin-bottom: 3rem;
}

.case-back:hover {
  color: var(--blue-hover);
}

.case-hero {
  max-width: 1140px;
  margin: 0 auto;
  padding: 9rem 2.5rem 5rem;
  text-align: center;
}

.case-hero h1 {
  max-width: 940px;
  margin: 0 auto 2rem;
  color: var(--ink);
  font-family: 'Funnel Sans', sans-serif;
  font-size: clamp(2.4rem, 7vw, 4rem);
  font-weight: 800;
  line-height: 1.05;
  letter-spacing: 0;
}

.case-hero h1 em {
  color: var(--blue);
  font-style: italic;
}

.case-hero p {
  max-width: 760px;
  margin: 0 auto;
  color: var(--ink2);
  font-size: 1.12rem;
  line-height: 1.85;
  font-weight: 300;
}

.service-pills {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 0.7rem;
  max-width: 860px;
  margin: 4rem auto 0;
  padding-top: 3rem;
  border-top: 1px solid var(--case-border);
}

.service-pills span {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border: 1px solid var(--case-border);
  border-radius: 6px;
  background: var(--case-card);
  color: var(--muted);
  font-family: 'Courier New', monospace;
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  padding: 0.55rem 0.95rem;
  transition: border-color 0.2s, color 0.2s, background 0.2s;
}

.service-pills span:hover {
  border-color: var(--case-border-strong);
  color: var(--blue);
  background: rgba(77, 159, 255, 0.08);
}

.case-main {
  max-width: 1180px;
  margin: 0 auto;
  padding: 0 2.5rem 7rem;
}

.case-section {
  margin-bottom: 5rem;
}

.case-section-wide {
  width: 100%;
  max-width: 1280px;
  margin-left: auto;
  margin-right: auto;
}

.text-column {
  max-width: 800px;
  margin-left: auto;
  margin-right: auto;
}

.section-heading {
  display: flex;
  align-items: center;
  gap: 0.9rem;
  margin-bottom: 2.2rem;
}

.section-heading span {
  color: var(--blue);
  font-family: 'Courier New', monospace;
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  white-space: nowrap;
}

.section-heading::after {
  content: "";
  flex: 1;
  height: 1px;
  background: var(--case-border);
}

.case-section h2 {
  color: var(--ink);
  font-family: 'Funnel Sans', sans-serif;
  font-size: clamp(1.8rem, 4vw, 2.15rem);
  font-weight: 800;
  line-height: 1.2;
  letter-spacing: 0;
  margin-bottom: 1.5rem;
}

.case-section p,
.section-intro {
  color: var(--ink2);
  font-size: 1rem;
  line-height: 1.85;
  font-weight: 300;
  margin-bottom: 1.25rem;
}

.case-section strong {
  color: var(--ink);
  font-weight: 600;
}

.case-section code {
  color: var(--ink);
  font-family: 'Courier New', monospace;
  font-size: 0.92em;
}

blockquote {
  margin: 2rem 0 0;
  padding: 1.8rem 2rem;
  border-left: 4px solid var(--blue);
  border-radius: 0 14px 14px 0;
  background: var(--case-card-strong);
  color: var(--ink);
  font-size: 1rem;
  line-height: 1.75;
  font-style: italic;
}

.architecture-card {
  position: relative;
  overflow: hidden;
  border: 1px solid var(--case-border);
  border-radius: 22px;
  background: var(--bg2);
  box-shadow: var(--shadow-md);
  padding: 4rem 3rem;
}

.architecture-card::before {
  content: "";
  position: absolute;
  inset: 0;
  background: radial-gradient(circle at 50% 0%, rgba(77, 159, 255, 0.08), transparent 55%);
  opacity: 0.9;
  pointer-events: none;
}

.architecture-flow {
  position: relative;
  z-index: 1;
  display: flex;
  align-items: stretch;
  justify-content: center;
  gap: 0.75rem;
}

.architecture-node {
  min-width: 0;
  flex: 1 1 0;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 0.55rem;
  text-align: center;
  border: 1px solid var(--case-border);
  border-radius: 16px;
  background: var(--case-card);
  padding: 1.3rem 0.75rem;
  transition: transform 0.3s, border-color 0.3s, box-shadow 0.3s;
}

.architecture-node:hover {
  transform: translateY(-6px);
  border-color: var(--case-border-strong);
  box-shadow: var(--shadow-blue);
}

.architecture-node-primary {
  border-color: rgba(52, 211, 153, 0.35);
  background: rgba(52, 211, 153, 0.08);
}

.architecture-icon {
  width: clamp(48px, 4.2vw, 58px);
  height: clamp(48px, 4.2vw, 58px);
  display: flex;
  align-items: center;
  justify-content: center;
  border: 1px solid var(--case-border);
  border-radius: 16px;
  background: var(--bg3);
  font-size: clamp(1.35rem, 1.9vw, 1.6rem);
}

.architecture-node strong {
  color: var(--ink);
  font-size: clamp(0.78rem, 0.9vw, 0.92rem);
  line-height: 1.3;
  max-width: 100%;
  overflow-wrap: anywhere;
}

.architecture-node span {
  color: var(--muted);
  font-family: 'Courier New', monospace;
  font-size: clamp(0.58rem, 0.72vw, 0.68rem);
  line-height: 1.35;
  max-width: 100%;
  overflow-wrap: anywhere;
}

.architecture-arrow {
  display: flex;
  align-items: center;
  flex: 0 0 18px;
  justify-content: center;
  color: rgba(77, 159, 255, 0.38);
  font-size: 1.35rem;
}

.architecture-card>p {
  position: relative;
  z-index: 1;
  margin: 2.5rem 0 0;
  padding-top: 1.6rem;
  border-top: 1px solid var(--case-border);
  color: var(--muted);
  text-align: center;
  font-style: italic;
}

.timeline-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 1rem;
  margin-top: 2rem;
}

.timeline-card,
.learning-card {
  border: 1px solid var(--case-border);
  border-radius: 18px;
  background: var(--case-card);
  transition: transform 0.3s, border-color 0.3s, background 0.3s;
}

.timeline-card {
  padding: 1.7rem;
}

.timeline-card:hover,
.learning-card:hover {
  transform: translateY(-6px);
  border-color: var(--case-border-strong);
  background: var(--case-card-strong);
}

.timeline-card-wide {
  grid-column: span 3;
}

.timeline-number {
  width: 44px;
  height: 44px;
  display: flex;
  align-items: center;
  justify-content: center;
  border: 1px solid rgba(77, 159, 255, 0.24);
  border-radius: 12px;
  background: rgba(77, 159, 255, 0.1);
  color: var(--blue);
  font-family: 'Courier New', monospace;
  font-weight: 700;
  margin-bottom: 1.3rem;
}

.timeline-card h3,
.challenge-card h3,
.learning-card h3 {
  color: var(--ink);
  font-size: 1rem;
  line-height: 1.35;
  margin-bottom: 0.75rem;
}

.timeline-card p,
.challenge-card p,
.learning-card p {
  color: var(--muted);
  font-size: 0.9rem;
  line-height: 1.7;
  margin: 0;
}

.challenge-stack {
  display: grid;
  gap: 1.2rem;
  margin-top: 2rem;
}

.challenge-card {
  overflow: hidden;
  border: 1px solid var(--case-border);
  border-left: 6px solid var(--case-error);
  border-radius: 18px;
  background: var(--case-card);
  transition: transform 0.3s, border-color 0.3s;
}

.challenge-card:hover {
  transform: translateX(6px);
  border-color: var(--case-border-strong);
}

.challenge-half {
  padding: 1.7rem 2rem;
}

.challenge-half.problem {
  border-bottom: 1px solid var(--case-border);
  background: rgba(251, 113, 133, 0.05);
}

.challenge-half.solution {
  background: rgba(52, 211, 153, 0.05);
}

.challenge-half span {
  display: inline-flex;
  width: fit-content;
  border-radius: 999px;
  font-size: 0.62rem;
  font-weight: 800;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  padding: 0.35rem 0.65rem;
  margin-bottom: 0.9rem;
}

.challenge-half.problem span {
  border: 1px solid rgba(251, 113, 133, 0.3);
  background: rgba(251, 113, 133, 0.12);
  color: var(--case-error);
}

.challenge-half.solution span {
  border: 1px solid rgba(52, 211, 153, 0.3);
  background: rgba(52, 211, 153, 0.12);
  color: var(--case-success);
}

.cost-panel {
  overflow-x: auto;
  border: 1px solid var(--case-border);
  border-radius: 18px;
  background: var(--bg2);
  box-shadow: var(--shadow-md);
}

.cost-table {
  width: 100%;
  min-width: 680px;
  border-collapse: collapse;
  font-size: 0.92rem;
}

.cost-table th {
  background: var(--bg3);
  color: var(--muted);
  font-family: 'Courier New', monospace;
  font-size: 0.72rem;
  letter-spacing: 0.08em;
  text-align: left;
  text-transform: uppercase;
}

.cost-table th,
.cost-table td {
  padding: 1.1rem 1.25rem;
  border-bottom: 1px solid var(--case-border);
}

.cost-table td {
  color: var(--ink2);
}

.cost-table td:first-child {
  color: var(--ink);
  font-weight: 700;
}

.cost-table td:last-child {
  color: var(--case-success);
  font-family: 'Courier New', monospace;
  text-align: right;
}

.cost-table th:last-child {
  text-align: right;
}

.cost-table tr:last-child td {
  border-bottom: none;
  background: rgba(77, 159, 255, 0.08);
  color: var(--ink);
  font-weight: 800;
}

.cost-table tr:last-child td:last-child {
  color: var(--amber);
}

.cost-note {
  margin-top: 1.2rem;
  color: var(--muted);
  font-size: 0.88rem;
  text-align: center;
}

.code-panel {
  overflow-x: auto;
  border: 1px solid var(--case-border);
  border-radius: 18px;
  background: var(--bg2);
  box-shadow: var(--shadow-md);
  margin: 1.6rem 0;
}

.code-label {
  border-bottom: 1px solid var(--case-border);
  background: var(--bg3);
  color: var(--muted);
  font-family: 'Courier New', monospace;
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  padding: 0.9rem 1.25rem;
}

.code-panel code {
  display: block;
  width: max-content;
  min-width: 100%;
  color: var(--ink2);
  font-family: 'Courier New', monospace;
  font-size: 0.85rem;
  line-height: 1.8;
  padding: 1.25rem;
  white-space: pre;
}

.c-comment {
  color: var(--muted);
}

.c-key {
  color: var(--blue);
  font-weight: 700;
}

.c-str {
  color: var(--case-success);
}

.c-num {
  color: var(--amber);
}

.c-fn {
  color: var(--ink);
  font-weight: 700;
}

.learning-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 1rem;
  margin-top: 2rem;
}

.learning-card {
  padding: 1.7rem;
  border-top: 2px solid rgba(77, 159, 255, 0.32);
}

.learning-card span {
  display: block;
  font-size: 1.9rem;
  margin-bottom: 1rem;
}

.reveal {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity 0.75s cubic-bezier(0.22, 1, 0.36, 1), transform 0.75s cubic-bezier(0.22, 1, 0.36, 1);
}

.reveal.visible {
  opacity: 1;
  transform: translateY(0);
}

@media (max-width: 1080px) {
  .architecture-flow {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .architecture-arrow {
    display: none;
  }

  .timeline-grid,
  .learning-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .timeline-card-wide {
    grid-column: span 2;
  }
}

@media (max-width: 640px) {
  .case-hero {
    padding: 7rem 1.5rem 4rem;
  }

  .case-main {
    padding: 0 1.5rem 5rem;
  }

  .case-back {
    margin-bottom: 2.2rem;
  }

  .case-hero h1 {
    font-size: 2.35rem;
  }

  .case-hero p {
    font-size: 1rem;
  }

  .service-pills {
    margin-top: 2.5rem;
    padding-top: 2rem;
  }

  .case-section {
    margin-bottom: 4rem;
  }

  .architecture-card {
    padding: 1.5rem;
  }

  .architecture-flow,
  .timeline-grid,
  .learning-grid {
    grid-template-columns: 1fr;
  }

  .timeline-card-wide {
    grid-column: span 1;
  }

  .challenge-half {
    padding: 1.3rem;
  }

}