/* ============================================================
   project-detail.css
   Styles for the dynamic project detail page.
   Inherits variables, resets, navbar, footer, and buttons
   from styles.css — only page-specific rules live here.
   ============================================================ */

/* ---- Loading state ---- */
/*
 * All three states (loading / error / content) are controlled
 * exclusively via display:none / display:block — never the `hidden`
 * attribute alone, because a CSS `display` rule always wins over it.
 */
.detail-loading {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
}

.detail-loading.is-hidden,
.detail-error.is-hidden,
.detail-content-wrap.is-hidden {
  display: none !important;
}

.detail-loading-inner {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 1.25rem;
}

.detail-loading-inner p {
  font-family: var(--font-primary);
  font-size: 0.72rem;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: rgba(255, 255, 255, 0.3);
}

.detail-spinner {
  width: 32px;
  height: 32px;
  border: 2px solid rgba(255, 255, 255, 0.1);
  border-top-color: rgba(59, 130, 246, 0.8);
  border-radius: 50%;
  animation: spin 0.75s linear infinite;
}

@keyframes spin {
  to { transform: rotate(360deg); }
}

/* ---- Error state ---- */
/* Starts hidden — shown only when no project matches */
.detail-error {
  display: none;
  min-height: 100vh;
  align-items: center;
  padding-top: 80px;
}

.detail-error.is-visible {
  display: flex;
}

.detail-error .container {
  text-align: center;
}

.detail-error-code {
  font-family: var(--font-primary);
  font-size: clamp(5rem, 15vw, 10rem);
  font-weight: 700;
  line-height: 1;
  color: rgba(255, 255, 255, 0.05);
  margin-bottom: 1rem;
  letter-spacing: -0.05em;
}

.detail-error-title {
  font-family: var(--font-primary);
  font-size: clamp(1.5rem, 4vw, 2.5rem);
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: 0.75rem;
}

.detail-error-sub {
  font-size: 0.9rem;
  color: var(--text-secondary);
  margin-bottom: 2.5rem;
}

.detail-back-btn {
  display: inline-flex;
}

/* ---- Root wrapper ---- */
.detail-root {
  padding-top: 80px; /* navbar offset */
}

/* Override the global .container on the detail page —
   use near-full width with only small side gutters */
.detail-root .container {
  max-width: 100%;
  padding: 0 2rem;
}

/* ====================================================
   HERO BAND
   ==================================================== */
.pd-hero {
  padding: 4rem 0 3rem;
  position: relative;
  z-index: 1;
}

/* Breadcrumb */
.pd-breadcrumb {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  margin-bottom: 2.5rem;
}

.pd-bc-link {
  font-family: var(--font-primary);
  font-size: 0.65rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  color: rgba(255, 255, 255, 0.3);
  text-decoration: none;
  transition: color 0.2s ease;
}

.pd-bc-link:hover {
  color: rgba(255, 255, 255, 0.75);
}

.pd-bc-sep {
  font-size: 0.65rem;
  color: rgba(255, 255, 255, 0.15);
}

.pd-bc-current {
  font-family: var(--font-primary);
  font-size: 0.65rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  color: rgba(255, 255, 255, 0.55);
}

/* Chip */
.pd-chip {
  display: inline-block;
  font-family: var(--font-primary);
  font-size: 0.62rem;
  font-weight: 700;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: rgba(255, 255, 255, 0.75);
  background: rgba(255, 255, 255, 0.06);
  border: 1px solid rgba(255, 255, 255, 0.12);
  border-radius: 50px;
  padding: 0.3rem 0.9rem;
  margin-bottom: 1.25rem;
}

/* Title */
.pd-title {
  font-family: var(--font-primary);
  font-size: clamp(2.5rem, 6vw, 5rem);
  font-weight: 700;
  color: var(--text-primary);
  line-height: 1.0;
  letter-spacing: -0.03em;
  margin-bottom: 0.75rem;
}

.pd-subtitle {
  font-family: var(--font-primary);
  font-size: clamp(0.85rem, 1.5vw, 1rem);
  color: var(--text-secondary);
  font-style: italic;
  letter-spacing: 0.01em;
  line-height: 1.6;
  max-width: 520px;
  margin-bottom: 0;
}

/* Meta pills row */
.pd-meta-row {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  margin-top: 2rem;
}

.pd-meta-pill {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.45rem 1rem;
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid rgba(255, 255, 255, 0.09);
  border-radius: 50px;
}

.pd-meta-label {
  font-family: var(--font-primary);
  font-size: 0.6rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  color: rgba(255, 255, 255, 0.3);
}

.pd-meta-value {
  font-family: var(--font-primary);
  font-size: 0.72rem;
  font-weight: 700;
  color: var(--text-primary);
  letter-spacing: 0.02em;
}

/* ====================================================
   PROJECT IMAGE
   ==================================================== */
.pd-image-section {
  padding: 0 0 5rem;
  position: relative;
  z-index: 1;
}

.pd-image-frame {
  border-radius: 20px;
  overflow: hidden;
  border: 1px solid rgba(255, 255, 255, 0.08);
  background: rgba(255, 255, 255, 0.03);
  box-shadow: 0 40px 80px rgba(0, 0, 0, 0.5);
  line-height: 0; /* remove inline gap below img */
}

.pd-hero-img {
  width: 100%;
  height: auto;
  display: block;
  object-fit: unset;
  object-position: unset;
  transition: transform 0.6s cubic-bezier(0.4, 0, 0.2, 1);
}

.pd-image-frame:hover .pd-hero-img {
  /* No scale on full-height images — it clips content */
  transform: none;
}

/* ====================================================
   BODY — Overview + Process
   ==================================================== */
.pd-body {
  padding: 0 0 6rem;
  position: relative;
  z-index: 1;
}

.pd-body-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 5rem;
  align-items: start;
}

/* Eyebrow labels */
.pd-section-eyebrow {
  font-family: var(--font-primary);
  font-size: 0.65rem;
  font-weight: 700;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--accent-blue);
  opacity: 0.75;
  margin-bottom: 1rem;
}

/* Overview column */
.pd-overview-col {
  position: sticky;
  top: 110px;
}

.pd-overview-text {
  font-family: var(--font-primary);
  font-size: 0.92rem;
  color: var(--text-secondary);
  line-height: 1.8;
  margin-bottom: 2.5rem;
}

.pd-tags-group {
  margin-top: 0.5rem;
}

.pd-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 0.45rem;
  margin-top: 0.25rem;
}

.pd-tag {
  font-family: var(--font-primary);
  font-size: 0.66rem;
  font-weight: 600;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--text-secondary);
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid rgba(255, 255, 255, 0.12);
  border-radius: 4px;
  padding: 0.28rem 0.72rem;
  white-space: nowrap;
  transition: background 0.2s ease, border-color 0.2s ease, color 0.2s ease;
}

.pd-tag:hover {
  background: rgba(255, 255, 255, 0.08);
  border-color: rgba(255, 255, 255, 0.2);
  color: rgba(255, 255, 255, 0.7);
}

/* Process column */
.pd-process-col {
  /* not sticky — scrolls naturally */
}

.pd-process-list {
  list-style: none;
  padding: 0;
  margin: 0;
  display: flex;
  flex-direction: column;
  gap: 1px;
  counter-reset: process-counter;
}

.pd-process-item {
  display: flex;
  gap: 1.5rem;
  padding: 1.5rem 1.75rem;
  background: rgba(255, 255, 255, 0.03);
  border: 1px solid rgba(255, 255, 255, 0.07);
  border-radius: 14px;
  transition: background 0.25s ease, border-color 0.25s ease;
  counter-increment: process-counter;
  position: relative;
  margin-bottom: 0.75rem;
}

.pd-process-item:last-child {
  margin-bottom: 0;
}

.pd-process-item:hover {
  background: rgba(255, 255, 255, 0.055);
  border-color: rgba(255, 255, 255, 0.13);
}

.pd-process-num {
  font-family: var(--font-primary);
  font-size: 0.62rem;
  font-weight: 700;
  letter-spacing: 0.1em;
  color: rgba(255, 255, 255, 0.2);
  flex-shrink: 0;
  min-width: 1.8rem;
  padding-top: 0.15rem;
  transition: color 0.25s ease;
}

.pd-process-item:hover .pd-process-num {
  color: var(--accent-blue);
}

.pd-process-body {
  flex: 1;
}

.pd-process-phase {
  font-family: var(--font-primary);
  font-size: 0.78rem;
  font-weight: 700;
  color: var(--text-primary);
  letter-spacing: 0.02em;
  margin-bottom: 0.4rem;
}

.pd-process-detail {
  font-family: var(--font-primary);
  font-size: 0.8rem;
  color: var(--text-secondary);
  line-height: 1.65;
}

/* ====================================================
   CTA SECTION
   ==================================================== */
.pd-cta-section {
  padding: 0 0 6rem;
  position: relative;
  z-index: 1;
}

.pd-cta-inner {
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  padding: 5rem 2rem;
  background: rgba(255, 255, 255, 0.025);
  border: 1px solid rgba(255, 255, 255, 0.07);
  border-radius: 24px;
  position: relative;
  overflow: hidden;
}

/* Subtle radial glow behind CTA */
.pd-cta-inner::before {
  content: '';
  position: absolute;
  width: 500px;
  height: 300px;
  background: radial-gradient(ellipse, rgba(59, 130, 246, 0.12) 0%, transparent 70%);
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  pointer-events: none;
}

.pd-cta-label {
  font-family: var(--font-primary);
  font-size: 0.68rem;
  font-weight: 700;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--accent-blue);
  opacity: 0.8;
  margin-bottom: 0.75rem;
  position: relative;
}

.pd-cta-title {
  font-family: var(--font-primary);
  font-size: clamp(1.75rem, 4vw, 3rem);
  font-weight: 700;
  color: var(--text-primary);
  letter-spacing: -0.03em;
  line-height: 1.1;
  margin-bottom: 2.5rem;
  position: relative;
}

.pd-cta-actions {
  display: flex;
  gap: 1rem;
  flex-wrap: wrap;
  justify-content: center;
  position: relative;
}

/* Know More button — slightly larger + Behance accent */
.pd-know-more-btn {
  background: #ffffff;
  color: #0a0a0a;
  padding: 1rem 2.25rem;
  font-size: 0.8rem;
  gap: 0.6rem;
}

.pd-know-more-btn:hover {
  background: #e8e8e8;
  transform: translateY(-2px);
  box-shadow: 0 12px 32px rgba(255, 255, 255, 0.18);
}

/* ====================================================
   PROJECT NAVIGATION (prev / next)
   ==================================================== */
.pd-nav-section {
  padding: 0 0 5rem;
  position: relative;
  z-index: 1;
}

.pd-proj-nav {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1.5rem;
}

.pd-nav-card {
  display: block;
  text-decoration: none;
  color: inherit;
  padding: 1.5rem 1.75rem;
  background: rgba(255, 255, 255, 0.03);
  border: 1px solid rgba(255, 255, 255, 0.07);
  border-radius: 16px;
  transition: background 0.25s ease, border-color 0.25s ease, transform 0.25s ease;
}

.pd-nav-card:hover {
  background: rgba(255, 255, 255, 0.055);
  border-color: rgba(255, 255, 255, 0.14);
  transform: translateY(-3px);
}

.pd-nav-card.pd-nav-prev {
  text-align: left;
}

.pd-nav-card.pd-nav-next {
  text-align: right;
}

.pd-nav-direction {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-family: var(--font-primary);
  font-size: 0.6rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.14em;
  color: rgba(255, 255, 255, 0.25);
  margin-bottom: 0.5rem;
}

.pd-nav-card.pd-nav-next .pd-nav-direction {
  justify-content: flex-end;
}

.pd-nav-project-title {
  font-family: var(--font-primary);
  font-size: clamp(0.9rem, 2vw, 1.15rem);
  font-weight: 700;
  color: var(--text-primary);
  letter-spacing: -0.01em;
  line-height: 1.3;
}

/* ====================================================
   RESPONSIVE
   ==================================================== */
@media (max-width: 900px) {
  .detail-root .container {
    padding: 0 1.25rem;
  }

  .pd-body-grid {
    grid-template-columns: 1fr;
    gap: 3rem;
  }

  .pd-overview-col {
    position: static;
  }

  .pd-proj-nav {
    grid-template-columns: 1fr;
  }

  .pd-nav-card.pd-nav-next {
    text-align: left;
  }

  .pd-nav-card.pd-nav-next .pd-nav-direction {
    justify-content: flex-start;
  }
}

@media (max-width: 768px) {
  .pd-hero {
    padding: 3rem 0 2rem;
  }

  .pd-title {
    font-size: clamp(2rem, 10vw, 3.5rem);
  }

  .pd-image-section {
    padding: 0 0 3.5rem;
  }

  .pd-image-frame {
    border-radius: 14px;
  }

  .pd-body {
    padding: 0 0 4rem;
  }

  .pd-cta-inner {
    padding: 3.5rem 1.5rem;
  }

  .pd-cta-actions {
    flex-direction: column;
    align-items: center;
    width: 100%;
  }

  .pd-know-more-btn,
  .pd-cta-actions .btn-secondary {
    width: 100%;
    max-width: 300px;
    justify-content: center;
  }
}

@media (max-width: 480px) {
  .detail-root .container {
    padding: 0 0.75rem;
  }

  .pd-title {
    font-size: clamp(1.75rem, 11vw, 2.8rem);
  }

  .pd-meta-row {
    gap: 0.5rem;
  }

  .pd-meta-pill {
    padding: 0.4rem 0.8rem;
  }

  .pd-process-item {
    padding: 1.2rem 1.25rem;
    gap: 1rem;
  }

  .pd-proj-nav {
    gap: 1rem;
  }

  .pd-nav-card {
    padding: 1.2rem 1.25rem;
  }
}