/* ==========================================================================
   Sertifikalar Page Styles — Temafil Tekstil
   Certificate image showcase with upload-ready slots
   ========================================================================== */

/* ---- Page Hero (shared with blog, imported from blog.css or defined here) ---- */
.page-hero {
  position: relative;
  padding: 160px 0 80px;
  background: linear-gradient(105deg, rgba(17, 54, 37, 0.94) 0%, rgba(20, 68, 47, 0.85) 45%, rgba(17, 54, 37, 0.70) 100%),
    url('images/hero-background.jpeg') center center / cover no-repeat;
  overflow: hidden;
}

.page-hero::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: radial-gradient(ellipse at 70% 20%, rgba(170, 204, 73, 0.08) 0%, transparent 60%),
    radial-gradient(ellipse at 20% 80%, rgba(170, 204, 73, 0.05) 0%, transparent 50%);
  z-index: 1;
  pointer-events: none;
}

.page-hero::after {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background-image: url("data:image/svg+xml,%3Csvg width='20' height='20' xmlns='http://www.w3.org/2000/svg'%3E%3Ccircle cx='1.5' cy='1.5' r='1' fill='rgba(255,255,255,0.04)'/%3E%3C/svg%3E");
  z-index: 1;
  pointer-events: none;
}

.page-hero-bg {
  position: absolute;
  top: 0; left: 0;
  width: 100%; height: 100%;
  pointer-events: none;
  z-index: 1;
}

.page-hero-content {
  position: relative;
  z-index: 2;
  max-width: 650px;
}

.page-hero-content h1 {
  color: var(--color-white);
  font-size: clamp(2rem, 4vw, 3.2rem);
  font-weight: 900;
  margin-bottom: var(--spacing-md);
  line-height: 1.15;
}

.page-hero-content p {
  color: rgba(255,255,255,0.75);
  font-size: 1.1rem;
  line-height: 1.7;
}

/* ---- Certificates Intro Section ---- */
.certs-intro-section {
  padding: var(--spacing-section) 0 var(--spacing-xxl);
  background: var(--color-white);
}

.certs-intro {
  text-align: center;
  max-width: 700px;
  margin: 0 auto;
}

.certs-intro-icon {
  margin-bottom: var(--spacing-lg);
}

.certs-intro-icon svg {
  display: inline-block;
}

.certs-intro h2 {
  font-size: clamp(1.6rem, 3vw, 2.2rem);
  color: var(--color-primary);
  margin-bottom: var(--spacing-md);
}

.certs-intro p {
  color: var(--color-text-light);
  font-size: 1.05rem;
  line-height: 1.8;
}

/* ---- Certificates Grid ---- */
.certs-main-section {
  padding: 0 0 var(--spacing-section);
  background: var(--color-white);
}

.certs-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--spacing-xl);
}

/* ---- Certificate Card ---- */
.cert-card {
  background: var(--color-white);
  border-radius: var(--radius-lg);
  overflow: hidden;
  border: 1px solid var(--color-border);
  transition: all var(--transition-normal);
  box-shadow: var(--shadow-sm);
}

.cert-card:hover {
  transform: translateY(-8px);
  box-shadow: var(--shadow-xl);
  border-color: rgba(170,204,73,0.3);
}

/* Image Slot — where certificate images go */
.cert-image-slot {
  width: 100%;
  aspect-ratio: 4 / 3;
  position: relative;
  overflow: hidden;
  background: var(--color-bg-light);
}

.cert-image-slot img {
  width: 100%;
  height: 100%;
  object-fit: contain;
  padding: 1.5rem;
  transition: transform var(--transition-slow);
}

.cert-card:hover .cert-image-slot img {
  transform: scale(1.05);
}

/* Placeholder when no image */
.cert-image-placeholder {
  width: 100%;
  height: 100%;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: var(--spacing-md);
  background: linear-gradient(135deg, #f8f9fa 0%, var(--color-bg-light) 100%);
  color: var(--color-text-light);
  position: relative;
}

.cert-image-placeholder::before {
  content: '';
  position: absolute;
  top: 50%; left: 50%;
  width: 120px; height: 120px;
  transform: translate(-50%, -50%);
  border: 2px dashed rgba(28,89,61,0.12);
  border-radius: 50%;
  pointer-events: none;
}

.cert-image-placeholder svg {
  color: var(--color-primary);
  opacity: 0.25;
  transition: opacity var(--transition-normal);
}

.cert-card:hover .cert-image-placeholder svg {
  opacity: 0.4;
}

.cert-image-hint {
  font-size: 0.75rem;
  color: var(--color-text-light);
  opacity: 0.5;
  font-style: italic;
}

/* Card Body */
.cert-card-body {
  padding: var(--spacing-lg) var(--spacing-xl);
}

.cert-badge {
  display: inline-block;
  font-family: var(--font-heading);
  font-size: 0.65rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 2px;
  color: var(--color-primary);
  background: rgba(28,89,61,0.08);
  padding: 4px 12px;
  border-radius: var(--radius-full);
  margin-bottom: var(--spacing-sm);
}

.cert-badge.special {
  color: var(--color-white);
  background: var(--color-accent-hover);
}

.cert-card-body h3 {
  font-size: 1.3rem;
  color: var(--color-primary);
  margin-bottom: 4px;
}

.cert-desc {
  font-size: 0.9rem;
  color: var(--color-accent-hover);
  font-weight: 600;
  margin-bottom: var(--spacing-sm);
}

.cert-detail {
  font-size: 0.9rem;
  color: var(--color-text-light);
  line-height: 1.65;
  margin-bottom: var(--spacing-md);
}

.cert-issuer {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 0.82rem;
  color: var(--color-text-light);
  padding-top: var(--spacing-sm);
  border-top: 1px solid var(--color-border);
}

.cert-issuer svg {
  color: var(--color-accent);
  stroke: var(--color-accent);
  flex-shrink: 0;
  display: inline-block;
}

/* ---- Lightbox / Zoom Effect ---- */
.cert-image-slot {
  cursor: pointer;
}

.cert-image-slot::after {
  content: '';
  position: absolute;
  top: 0; left: 0;
  width: 100%; height: 100%;
  background: linear-gradient(180deg, transparent 60%, rgba(28,89,61,0.04) 100%);
  pointer-events: none;
  transition: background var(--transition-normal);
}

.cert-card:hover .cert-image-slot::after {
  background: linear-gradient(180deg, transparent 60%, rgba(170,204,73,0.06) 100%);
}

/* ---- Responsive ---- */
@media screen and (max-width: 1024px) {
  .certs-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media screen and (max-width: 768px) {
  .page-hero {
    padding: 130px 0 60px;
  }

  .certs-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: var(--spacing-md);
  }

  .cert-card-body {
    padding: var(--spacing-md);
  }
}

@media screen and (max-width: 480px) {
  .certs-grid {
    grid-template-columns: 1fr;
  }

  .page-hero-content h1 {
    font-size: 1.8rem;
  }
}