/* =====================================================
   EMPAT PILAR SECTION — GEMA BELA NEGARA
   Clean Final CSS
   ===================================================== */

.empat-pilar-section {
  /* Colors */
  --ep-navy: #020817;
  --ep-navy-card: #091023;
  --ep-gold: #d4af37;
  --ep-gold-light: #f3d56a;
  --ep-white: #fffaf0;
  --ep-muted: rgba(255, 250, 240, 0.75);
  --ep-border: rgba(212, 175, 55, 0.2);
  --ep-border-hover: rgba(212, 175, 55, 0.6);

  /* Layout */
  --ep-padding-y: clamp(60px, 8vw, 100px);
  --ep-padding-x: clamp(24px, 5vw, 64px);
  --ep-gap: clamp(16px, 2vw, 24px);

  /* Typography */
  --ep-eyebrow-size: clamp(0.75rem, 1vw, 0.875rem);
  --ep-title-size: clamp(2rem, 4vw, 3.5rem);
  --ep-subtitle-size: clamp(1rem, 1.2vw, 1.125rem);
  --ep-card-title-size: clamp(1.1rem, 1.5vw, 1.25rem);
  --ep-card-text-size: clamp(0.875rem, 1vw, 0.95rem);

  position: relative;
  width: 100%;
  padding: var(--ep-padding-y) 0;
  background: var(--ep-navy);
  color: var(--ep-white);
  overflow: hidden;
  isolation: isolate;
}

.empat-pilar-section *,
.empat-pilar-section *::before,
.empat-pilar-section *::after {
  box-sizing: border-box;
}

/* =====================================================
   Background & Overlays
   ===================================================== */

.empat-pilar-section .ep-bg,
.empat-pilar-section .ep-overlay,
.empat-pilar-section .ep-gold-glow {
  position: absolute;
  inset: 0;
  pointer-events: none;
}

.empat-pilar-section .ep-bg {
  z-index: 0;
  overflow: hidden;
  background: var(--ep-navy);
}

.empat-pilar-section .ep-bg-image {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center;
  opacity: 0.15; /* Subtle background */
  filter: grayscale(0.5) contrast(1.2);
}

.empat-pilar-section .ep-overlay {
  z-index: 1;
  background: linear-gradient(
    180deg,
    rgba(2, 8, 23, 1) 0%,
    rgba(2, 8, 23, 0.7) 50%,
    rgba(2, 8, 23, 1) 100%
  );
}

.empat-pilar-section .ep-gold-glow {
  z-index: 2;
  width: 600px;
  height: 600px;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  border-radius: 999px;
  background: radial-gradient(
    circle,
    rgba(212, 175, 55, 0.08) 0%,
    transparent 70%
  );
}

/* =====================================================
   Main Layout & Header
   ===================================================== */

.empat-pilar-section .ep-container {
  position: relative;
  z-index: 5;
  width: 100%;
  max-width: 1440px;
  margin: 0 auto;
  padding-left: var(--ep-padding-x);
  padding-right: var(--ep-padding-x);
  display: flex;
  flex-direction: column;
  align-items: center;
}

.empat-pilar-section .ep-header {
  text-align: center;
  margin-bottom: clamp(40px, 5vw, 60px);
  max-width: 800px;
}

.empat-pilar-section .ep-eyebrow {
  display: block;
  color: var(--ep-gold);
  font-family: "Cinzel", "Cormorant Garamond", Georgia, serif;
  font-size: var(--ep-eyebrow-size);
  font-weight: 700;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  margin-bottom: 12px;
}

.empat-pilar-section .ep-title {
  margin: 0 0 16px;
  font-family: "Cinzel", "Cormorant Garamond", Georgia, serif;
  font-size: var(--ep-title-size);
  font-weight: 800;
  line-height: 1.1;
  text-transform: uppercase;
  color: var(--ep-white);
  text-shadow: 0 4px 12px rgba(0, 0, 0, 0.5);
}

.empat-pilar-section .ep-title span {
  color: var(--ep-gold);
}

.empat-pilar-section .ep-subtitle {
  margin: 0;
  color: var(--ep-muted);
  font-family: "Crimson Pro", Georgia, serif;
  font-size: var(--ep-subtitle-size);
  line-height: 1.5;
}

/* =====================================================
   Grid & Cards
   ===================================================== */

.empat-pilar-section .ep-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: var(--ep-gap);
  width: 100%;
}

.empat-pilar-section .ep-card {
  background: var(--ep-navy-card);
  border: 1px solid var(--ep-border);
  border-top: 3px solid var(--ep-gold);
  border-radius: 8px;
  padding: clamp(24px, 3vw, 40px) 24px;
  text-align: center;
  transition: all 0.4s cubic-bezier(0.165, 0.84, 0.44, 1);
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.2);
  display: flex;
  flex-direction: column;
  align-items: center;
}

.empat-pilar-section .ep-icon {
  width: 60px;
  height: 60px;
  margin-bottom: 20px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--ep-gold);
  background: rgba(212, 175, 55, 0.1);
  border-radius: 50%;
  transition: transform 0.3s ease;
}

.empat-pilar-section .ep-icon.ep-icon-png {
  width: 120px;
  height: 120px;
}

.empat-pilar-section .ep-icon svg,
.empat-pilar-section .ep-icon img {
  width: 28px;
  height: 28px;
  object-fit: contain;
}

.empat-pilar-section .ep-card-title {
  margin: 0 0 12px;
  color: var(--ep-gold-light);
  font-family: "Cinzel", "Cormorant Garamond", Georgia, serif;
  font-size: var(--ep-card-title-size);
  font-weight: 700;
  letter-spacing: 0.05em;
  text-transform: uppercase;
}

.empat-pilar-section .ep-card-text {
  margin: 0;
  color: var(--ep-muted);
  font-size: var(--ep-card-text-size);
  line-height: 1.6;
}

/* =====================================================
   Hover Effects
   ===================================================== */

@media (hover: hover) and (pointer: fine) {
  .empat-pilar-section .ep-card:hover {
    transform: translateY(-8px);
    border-color: var(--ep-border-hover);
    box-shadow:
      0 16px 40px rgba(0, 0, 0, 0.4),
      0 0 20px rgba(212, 175, 55, 0.15);
    background: linear-gradient(
      180deg,
      rgba(11, 19, 43, 1) 0%,
      rgba(2, 8, 23, 1) 100%
    );
  }

  .empat-pilar-section .ep-card:hover .ep-icon {
    transform: scale(1.1);
    background: rgba(212, 175, 55, 0.2);
  }
}

/* =====================================================
   Laptop kecil di bawah 1200px
   ===================================================== */

@media (max-width: 1199px) {
  .empat-pilar-section {
    --ep-padding-x: 40px;
  }
  .empat-pilar-section .ep-card {
    padding: 32px 20px;
  }
  .empat-pilar-section .ep-icon {
    width: 50px;
    height: 50px;
  }
  .empat-pilar-section .ep-icon.ep-icon-png {
    width: 100px;
    height: 100px;
  }
  .empat-pilar-section .ep-icon svg,
  .empat-pilar-section .ep-icon img {
    width: 24px;
    height: 24px;
  }
}

/* =====================================================
   Tablet landscape / tablet besar (1024px)
   ===================================================== */

@media (max-width: 1024px) {
  .empat-pilar-section .ep-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

/* =====================================================
   Mobile / tablet kecil (768px)
   ===================================================== */

@media (max-width: 768px) {
  .empat-pilar-section {
    --ep-padding-x: 20px;
  }

  .empat-pilar-section .ep-grid {
    grid-template-columns: 1fr;
    gap: 16px;
  }

  .empat-pilar-section .ep-header {
    margin-bottom: 32px;
  }

  .empat-pilar-section .ep-card {
    padding: 24px;
  }
}

/* =====================================================
   Small mobile (420px)
   ===================================================== */

@media (max-width: 420px) {
  .empat-pilar-section {
    --ep-padding-x: 16px;
  }

  .empat-pilar-section .ep-icon {
    width: 45px;
    height: 45px;
    margin-bottom: 16px;
  }
  .empat-pilar-section .ep-icon.ep-icon-png {
    width: 80px;
    height: 80px;
  }

  .empat-pilar-section .ep-icon svg,
  .empat-pilar-section .ep-icon img {
    width: 20px;
    height: 20px;
  }
}

/* =====================================================
   Accessibility
   ===================================================== */

@media (prefers-reduced-motion: reduce) {
  .empat-pilar-section .ep-card,
  .empat-pilar-section .ep-icon {
    transition: none;
    transform: none;
  }
  .empat-pilar-section .ep-card:hover {
    transform: none;
  }
}

/* =====================================================
   UPDATE: Background & Overlays agar lebih terlihat
   ===================================================== */

.empat-pilar-section .ep-bg-image {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center;
  opacity: 0.9;
  /* Kurangi efek grayscale agar warna emas/merah lebih hidup tapi tidak silau */
  filter: contrast(1.1) brightness(0.85);
}

.empat-pilar-section .ep-overlay {
  z-index: 1;
  /* Buat gradasi tengah lebih transparan agar gambar tembus, 
     tapi atas dan bawah tetap solid agar menyatu dengan section lain */
  background: linear-gradient(
    180deg,
    rgba(2, 8, 23, 1) 0%,
    rgba(2, 8, 23, 0.4) 25%,
    rgba(2, 8, 23, 0.2) 50%,
    rgba(2, 8, 23, 0.4) 75%,
    rgba(2, 8, 23, 1) 100%
  );
}

/* =====================================================
   Animations - Elegant & Responsive Safe
   ===================================================== */

@keyframes epPulseGlow {
  0%,
  100% {
    opacity: 0.45;
    transform: translate(-50%, -50%) scale(1);
  }
  50% {
    opacity: 0.75;
    transform: translate(-50%, -50%) scale(1.04);
  }
}

.empat-pilar-section .ep-gold-glow {
  animation: epPulseGlow 10s ease-in-out infinite;
  will-change: transform, opacity;
}

@keyframes epFloatIcon {
  0%,
  100% {
    transform: translateY(0);
  }
  50% {
    transform: translateY(-4px);
  }
}

.empat-pilar-section .ep-icon.ep-icon-png img {
  animation: epFloatIcon 5.5s ease-in-out infinite;
  will-change: transform;
}

/* Hover tetap elegan tanpa mengganggu animasi icon */
@media (hover: hover) and (pointer: fine) {
  .empat-pilar-section .ep-card:hover .ep-icon {
    transform: scale(1.06);
  }

  .empat-pilar-section .ep-card:hover .ep-icon.ep-icon-png img {
    animation-play-state: paused;
    transform: translateY(-2px);
  }
}

/* Mobile: animasi lebih lembut */
@media (max-width: 768px) {
  .empat-pilar-section .ep-gold-glow {
    animation-duration: 12s;
  }

  .empat-pilar-section .ep-icon.ep-icon-png img {
    animation-duration: 6.5s;
  }
}

/* Accessibility */
@media (prefers-reduced-motion: reduce) {
  .empat-pilar-section .ep-gold-glow,
  .empat-pilar-section .ep-icon.ep-icon-png img {
    animation: none;
  }
}

/* =====================================================
   PDF Preview — Clickable Image
   ===================================================== */

.pdf-section {
  background: radial-gradient(circle at center, #0b1f4d, #020617);
  padding: 20px 20px;
  color: red;
}

.pdf-section .ep-pdf {
  /* margin-top: clamp(40px, 6vw, 72px); */
  width: 100%;
  display: flex;
  justify-content: center;
}

.pdf-section .ep-pdf__link {
  position: relative;
  display: inline-block;
  border-radius: 12px;
  overflow: hidden;
  box-shadow:
    0 8px 32px rgba(0, 0, 0, 0.45),
    0 0 0 1px rgba(212, 175, 55, 0.25);
  transition:
    box-shadow 0.4s ease,
    transform 0.4s cubic-bezier(0.165, 0.84, 0.44, 1);
  text-decoration: none;
  max-width: clamp(280px, 55%, 640px);
  width: 100%;
}

.pdf-section .ep-pdf__img {
  display: block;
  width: 100%;
  height: auto;
  object-fit: cover;
  border-radius: 12px;
  transition: transform 0.45s cubic-bezier(0.165, 0.84, 0.44, 1);
}

/* Overlay muncul saat hover */
.pdf-section .ep-pdf__overlay {
  position: absolute;
  inset: 0;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 10px;
  background: rgba(2, 8, 23, 0.62);
  backdrop-filter: blur(3px);
  color: var(--ep-gold-light);
  font-family: "Cinzel", "Cormorant Garamond", Georgia, serif;
  font-size: clamp(0.8rem, 1.2vw, 0.95rem);
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  border-radius: 12px;
  opacity: 0;
  transition: opacity 0.35s ease;
  pointer-events: none;
}

.pdf-section .ep-pdf__overlay svg {
  stroke: var(--ep-gold);
  filter: drop-shadow(0 0 6px rgba(212, 175, 55, 0.6));
}

/* Hover state — desktop */
@media (hover: hover) and (pointer: fine) {
  .pdf-section .ep-pdf__link:hover {
    transform: translateY(-6px);
    box-shadow:
      0 20px 48px rgba(0, 0, 0, 0.6),
      0 0 0 2px rgba(212, 175, 55, 0.55),
      0 0 28px rgba(212, 175, 55, 0.18);
  }

  .pdf-section .ep-pdf__link:hover .ep-pdf__img {
    transform: scale(1.03);
  }

  .pdf-section .ep-pdf__link:hover .ep-pdf__overlay {
    opacity: 1;
  }
}

/* Focus keyboard accessibility */
.empat-pilar-section .ep-pdf__link:focus-visible {
  outline: 2px solid var(--ep-gold);
  outline-offset: 4px;
}

/* Tablet */
@media (max-width: 1024px) {
  .empat-pilar-section .ep-pdf__link {
    max-width: clamp(260px, 70%, 520px);
  }
}

/* Mobile — overlay selalu tampil di touch device */
@media (max-width: 768px) {
  .empat-pilar-section .ep-pdf {
    margin-top: 36px;
  }

  .empat-pilar-section .ep-pdf__link {
    max-width: 90%;
  }

  .empat-pilar-section .ep-pdf__overlay {
    opacity: 1;
    background: rgba(2, 8, 23, 0.45);
  }
}

/* Small mobile */
@media (max-width: 420px) {
  .empat-pilar-section .ep-pdf__link {
    max-width: 100%;
    border-radius: 8px;
  }

  .empat-pilar-section .ep-pdf__img {
    border-radius: 8px;
  }

  .empat-pilar-section .ep-pdf__overlay {
    border-radius: 8px;
    font-size: 0.75rem;
  }
}

/* Reduced motion */
@media (prefers-reduced-motion: reduce) {
  .empat-pilar-section .ep-pdf__link,
  .empat-pilar-section .ep-pdf__img {
    transition: none;
  }
}