/* ===== Portfolio Page Styles (Light Theme) ===== */

/* ===== CSS Variables ===== */
:root {
  --pf-background: #ffffff;
  --pf-foreground: #1a1a2e;
  --pf-card: #ffffff;
  --pf-card-border: #e8e8ef;
  --pf-primary: #7B2D8E;
  --pf-primary-light: rgba(123, 45, 142, 0.08);
  --pf-accent: #f5a623;
  --pf-muted: #6b7280;
  --pf-muted-bg: #f8f9fc;
  --pf-secondary-bg: #f0ebf5;
  --pf-secondary-text: #6b46a0;
  --pf-gradient: linear-gradient(135deg, #7B2D8E, #a855f7);
  --pf-shadow: 0 4px 24px rgba(0, 0, 0, 0.06);
  --pf-shadow-hover: 0 12px 40px rgba(123, 45, 142, 0.12);
  --pf-radius: 12px;
}

/* ===== Filter Buttons ===== */
.portfolio-filters {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  justify-content: center;
  padding: 0 0 20px;
}

.pf-filter-btn {
  display: inline-block;
  border: 1px solid var(--pf-card-border);
  border-radius: 9999px;
  padding: 8px 20px;
  font-size: 14px;
  font-weight: 500;
  cursor: pointer;
  transition: all 0.3s ease;
  background: var(--pf-background);
  color: var(--pf-muted);
}

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

.pf-filter-btn.active {
  background: var(--pf-gradient);
  color: #fff;
  border-color: transparent;
  box-shadow: 0 4px 16px rgba(123, 45, 142, 0.25);
}

/* ===== Project Cards (List Page) ===== */
.pf-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 28px;
}

@media (max-width: 992px) {
  .pf-grid { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 576px) {
  .pf-grid { grid-template-columns: 1fr; }
}

.pf-card-wrapper {
  opacity: 0;
  transform: translateY(20px);
  transition: opacity 0.5s ease, transform 0.5s ease;
}

.pf-card-wrapper.show {
  opacity: 1;
  transform: translateY(0);
}

.pf-card {
  display: block;
  text-decoration: none;
  color: inherit;
  border-radius: var(--pf-radius);
  border: 1px solid var(--pf-card-border);
  background: var(--pf-card);
  box-shadow: var(--pf-shadow);
  overflow: hidden;
  transition: all 0.4s ease;
}

.pf-card:hover {
  color: inherit;
  text-decoration: none;
  border-color: rgba(123, 45, 142, 0.3);
  box-shadow: var(--pf-shadow-hover);
  transform: translateY(-4px);
}

.pf-card-img {
  position: relative;
  aspect-ratio: 16 / 9;
  overflow: hidden;
}

.pf-card-img img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.6s ease;
}

.pf-card:hover .pf-card-img img {
  transform: scale(1.05);
}

.pf-card-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(to top, rgba(26, 26, 46, 0.6), transparent, transparent);
  opacity: 0;
  transition: opacity 0.4s ease;
}

.pf-card:hover .pf-card-overlay {
  opacity: 1;
}

.pf-card-cta {
  position: absolute;
  bottom: 14px;
  left: 14px;
  display: inline-block;
  border-radius: 9999px;
  background: var(--pf-accent);
  padding: 4px 14px;
  font-size: 12px;
  font-weight: 600;
  color: #1a1a2e;
  opacity: 0;
  transform: translateY(8px);
  transition: all 0.4s ease;
}

.pf-card:hover .pf-card-cta {
  opacity: 1;
  transform: translateY(0);
}

.pf-card-body {
  padding: 20px;
}

.pf-card-category {
  font-size: 12px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--pf-primary);
}

.pf-card-title {
  margin-top: 6px;
  font-size: 18px;
  font-weight: 600;
  color: var(--pf-foreground);
  line-height: 1.3;
}

.pf-card-desc {
  margin-top: 8px;
  font-size: 14px;
  line-height: 1.6;
  color: var(--pf-muted);
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.pf-card-techs {
  margin-top: 14px;
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
}

.pf-tech-badge {
  display: inline-block;
  border-radius: 6px;
  background: var(--pf-secondary-bg);
  padding: 2px 10px;
  font-size: 12px;
  font-weight: 500;
  color: var(--pf-secondary-text);
}

.pf-tech-badge-more {
  color: var(--pf-muted);
}

/* ============================================== */
/* ===== PORTFOLIO DETAIL PAGE ===== */
/* ============================================== */

.pfd-page {
  padding: 120px 0 80px;
}

/* Back Link */
.pfd-back {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 14px;
  font-weight: 500;
  color: var(--pf-muted);
  text-decoration: none;
  transition: color 0.2s;
  margin-bottom: 32px;
}

.pfd-back:hover {
  color: var(--pf-primary);
  text-decoration: none;
}

/* Hero Image - Floating 3D Style */
.pfd-hero-wrapper {
  position: relative;
  margin-bottom: 48px;
}

.pfd-hero {
  position: relative;
  border-radius: 20px;
  overflow: hidden;
  box-shadow: 0 20px 60px rgba(123, 45, 142, 0.15), 0 8px 24px rgba(0, 0, 0, 0.08);
  background: linear-gradient(135deg, #f3e8ff, #ede5f7);
  padding: 16px;
}

.pfd-hero img {
  width: 100%;
  border-radius: 12px;
  display: block;
  aspect-ratio: 16 / 9;
  object-fit: cover;
}

.pfd-hero-shadow {
  position: absolute;
  bottom: -20px;
  left: 10%;
  right: 10%;
  height: 40px;
  background: linear-gradient(135deg, rgba(123, 45, 142, 0.2), rgba(168, 85, 247, 0.15));
  border-radius: 50%;
  filter: blur(20px);
}

/* Header */
.pfd-header {
  margin-bottom: 40px;
}

.pfd-category {
  display: inline-block;
  font-size: 13px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--pf-primary);
  margin-bottom: 12px;
}

.pfd-title {
  font-size: 36px;
  font-weight: 800;
  color: var(--pf-foreground);
  line-height: 1.15;
  margin: 0 0 20px;
}

@media (min-width: 768px) {
  .pfd-title { font-size: 48px; }
}

.pfd-desc {
  max-width: 640px;
  font-size: 16px;
  line-height: 1.8;
  color: var(--pf-muted);
}

.pfd-desc p {
  margin-bottom: 8px;
}

.pfd-desc strong, .pfd-desc b {
  color: var(--pf-foreground);
  font-weight: 600;
}

/* Meta Cards */
.pfd-meta {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 16px;
  margin-bottom: 48px;
}

@media (max-width: 768px) {
  .pfd-meta { grid-template-columns: 1fr; }
}

.pfd-meta-card {
  display: flex;
  align-items: center;
  gap: 14px;
  padding: 20px 24px;
  border-radius: 16px;
  background: var(--pf-muted-bg);
  border: 1px solid var(--pf-card-border);
  transition: box-shadow 0.3s ease;
}

.pfd-meta-card:hover {
  box-shadow: 0 4px 16px rgba(0, 0, 0, 0.06);
}

.pfd-meta-icon {
  width: 40px;
  height: 40px;
  border-radius: 10px;
  background: var(--pf-secondary-bg);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

.pfd-meta-icon i {
  font-size: 18px;
  color: var(--pf-primary);
}

.pfd-meta-label {
  display: block;
  font-size: 12px;
  font-weight: 500;
  color: var(--pf-primary);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  margin-bottom: 2px;
}

.pfd-meta-value {
  display: block;
  font-size: 15px;
  font-weight: 600;
  color: var(--pf-foreground);
}

/* Section */
.pfd-section {
  margin-bottom: 48px;
}

.pfd-section-title {
  font-size: 22px;
  font-weight: 700;
  color: var(--pf-foreground);
  margin-bottom: 20px;
}

/* Technologies */
.pfd-techs {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

.pfd-tech-pill {
  display: inline-block;
  padding: 8px 20px;
  border-radius: 9999px;
  font-size: 14px;
  font-weight: 500;
  color: var(--pf-secondary-text);
  background: var(--pf-secondary-bg);
  border: 1px solid rgba(123, 45, 142, 0.12);
  transition: all 0.2s;
}

.pfd-tech-pill:hover {
  background: rgba(123, 45, 142, 0.12);
  border-color: rgba(123, 45, 142, 0.25);
}

/* Challenge & Solution */
.pfd-cs-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 24px;
  margin-bottom: 48px;
}

@media (max-width: 768px) {
  .pfd-cs-grid { grid-template-columns: 1fr; }
}

.pfd-cs-card {
  border-radius: 16px;
  padding: 32px;
  border: 1px solid var(--pf-card-border);
}

.pfd-cs-card h3 {
  font-size: 20px;
  font-weight: 700;
  color: var(--pf-foreground);
  margin: 0 0 16px;
  padding-bottom: 16px;
  border-bottom: 2px solid var(--pf-card-border);
}

.pfd-challenge {
  background: var(--pf-muted-bg);
}

.pfd-challenge h3 {
  border-bottom-color: rgba(107, 114, 128, 0.2);
}

.pfd-solution {
  background: linear-gradient(135deg, rgba(123, 45, 142, 0.04), rgba(168, 85, 247, 0.06));
  border-color: rgba(123, 45, 142, 0.15);
}

.pfd-solution h3 {
  border-bottom-color: rgba(123, 45, 142, 0.15);
}

.pfd-cs-content {
  font-size: 15px;
  line-height: 1.8;
  color: var(--pf-muted);
}

.pfd-cs-content p {
  margin-bottom: 8px;
}

/* Key Results */
.pfd-results-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
}

@media (max-width: 576px) {
  .pfd-results-grid { grid-template-columns: 1fr; }
}

.pfd-result {
  display: flex;
  align-items: center;
  gap: 16px;
  padding: 20px 24px;
  border-radius: 14px;
  background: var(--pf-muted-bg);
  border: 1px solid var(--pf-card-border);
  transition: box-shadow 0.3s ease;
}

.pfd-result:hover {
  box-shadow: 0 4px 16px rgba(0, 0, 0, 0.06);
}

.pfd-result-num {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 36px;
  height: 36px;
  flex-shrink: 0;
  border-radius: 50%;
  background: var(--pf-gradient);
  font-size: 14px;
  font-weight: 700;
  color: #fff;
}

.pfd-result-text {
  font-size: 15px;
  font-weight: 500;
  color: var(--pf-foreground);
  line-height: 1.4;
}

/* Client Comment */
.pfd-quote {
  text-align: center;
  padding: 40px 32px;
  border-radius: 16px;
  background: var(--pf-muted-bg);
  border: 1px solid var(--pf-card-border);
}

.pfd-quote-icon {
  font-size: 40px;
  color: var(--pf-primary);
  opacity: 0.25;
  display: block;
  margin-bottom: 16px;
}

.pfd-quote-text {
  font-size: 17px;
  line-height: 1.8;
  color: var(--pf-muted);
  max-width: 640px;
  margin: 0 auto;
}

.pfd-quote-text p {
  margin-bottom: 8px;
}

.pfd-quote-author {
  margin-top: 20px;
  font-size: 15px;
  font-weight: 600;
  color: var(--pf-foreground);
}

/* CTA Button */
.pfd-cta {
  text-align: center;
  margin-top: 16px;
}

.pfd-cta-btn {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 14px 36px;
  border-radius: 12px;
  background: var(--pf-gradient);
  color: #fff;
  font-size: 16px;
  font-weight: 600;
  text-decoration: none;
  box-shadow: 0 8px 24px rgba(123, 45, 142, 0.3);
  transition: all 0.3s ease;
}

.pfd-cta-btn:hover {
  color: #fff;
  text-decoration: none;
  transform: translateY(-2px);
  box-shadow: 0 12px 32px rgba(123, 45, 142, 0.4);
}

.pfd-cta-btn i {
  font-size: 14px;
}

/* ===== Animations ===== */
@keyframes pfFadeUp {
  from { opacity: 0; transform: translateY(20px); }
  to { opacity: 1; transform: translateY(0); }
}

.pf-animate {
  opacity: 0;
  transform: translateY(20px);
}

.pf-animate.show {
  animation: pfFadeUp 0.5s ease forwards;
}