:root {
  --diamond-line: #30b3c3;
  --diamond-glow: rgba(48, 179, 195, 0.25);
  --orbit-line: rgba(48, 179, 195, 0.17);
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  font-family: "Space Grotesk", system-ui, -apple-system, sans-serif;
  background: #f4f2ec;
  color: #1a2635;
  line-height: 1.6;
}

.page {
  max-width: 1080px;
  margin: 0 auto;
  padding: 32px 20px;
  position: relative;
}

header {
  text-align: center;
  margin-bottom: 48px;
  position: relative;
  padding: 70px 0 50px 0;
}

.diamond-header-splash {
  position: absolute;
  top: 54%;
  left: 50%;
  transform: translate(-50%, -50%);
  z-index: 1;
  width: 170px;
  height: 170px;
  pointer-events: none;
  opacity: 0.63;
}

.diamond-stack {
  width: 170px;
  height: 170px;
  position: relative;
  animation: floaty 10.5s ease-in-out infinite;
}

@keyframes floaty {
  0%,
  100% {
    transform: translateY(0);
  }
  50% {
    transform: translateY(-8px);
  }
}

.diamond {
  position: absolute;
  inset: 20px;
  transform: rotate(45deg);
  border: 2px solid var(--diamond-line);
  background: radial-gradient(circle at 40% 0%, rgba(48, 179, 195, 0.11), transparent 70%);
  box-shadow: 0 0 22px var(--diamond-glow);
}

.diamond-1 {
  transform: rotate(45deg) scale(1.2);
  opacity: 0.08;
}

.diamond-2 {
  transform: rotate(45deg) scale(1.08);
  opacity: 0.13;
}

.diamond-3 {
  transform: rotate(45deg) scale(0.92);
  opacity: 0.31;
}

.diamond-4 {
  transform: rotate(45deg) scale(0.74);
  opacity: 0.55;
}

.diamond-track span {
  position: absolute;
  inset: 40%;
  border-top: 2px solid var(--orbit-line);
  transform-origin: center;
}

.diamond-track span:nth-child(1) {
  animation: orbitA 18s linear infinite;
}

.diamond-track span:nth-child(2) {
  animation: orbitB 24s linear infinite;
}

.diamond-track span:nth-child(3) {
  animation: orbitC 30s linear infinite;
}

.diamond-track span:nth-child(4) {
  animation: orbitD 20s linear infinite;
}

@keyframes orbitA {
  100% {
    transform: rotate(360deg) scaleX(2.1);
  }
}

@keyframes orbitB {
  100% {
    transform: rotate(-360deg) scaleX(1.7);
  }
}

@keyframes orbitC {
  100% {
    transform: rotate(360deg) scaleX(2.3);
  }
}

@keyframes orbitD {
  100% {
    transform: rotate(-360deg) scaleX(1.6);
  }
}

.title {
  font-family: "Playfair Display", "Times New Roman", serif;
  font-size: 3rem;
  letter-spacing: 0.08em;
  margin-bottom: 10px;
  position: relative;
  z-index: 5;
  color: #1a2635;
  text-shadow: 0 0 12px #30b3c322;
}

.subtitle {
  font-size: 1rem;
  text-transform: uppercase;
  letter-spacing: 0.14em;
  color: #57677a;
  position: relative;
  z-index: 5;
}

section {
  background: white;
  padding: 32px;
  margin-bottom: 42px;
  border-radius: 18px;
  border: 1px solid rgba(0, 0, 0, 0.08);
  box-shadow: 0 10px 28px rgba(0, 0, 0, 0.06);
}

h2 {
  font-family: "Playfair Display", "Times New Roman", serif;
  font-size: 1.4rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: #4c5a6b;
  margin-top: 0;
}

p {
  margin: 12px 0;
  color: #4c5a6b;
  font-size: 1.06rem;
}

.highlight {
  color: #1f4a67;
  font-style: italic;
  font-weight: 600;
}

.gallery {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 22px;
  margin-top: 12px;
}

.card {
  background: white;
  border-radius: 14px;
  border: 1px solid rgba(0, 0, 0, 0.08);
  padding: 18px;
  box-shadow: 0 10px 22px rgba(0, 0, 0, 0.05);
}

.card h3 {
  font-family: "Playfair Display", "Times New Roman", serif;
  font-size: 1.2rem;
  margin: 0 0 6px;
  color: #1a2635;
}

footer {
  text-align: center;
  padding: 22px;
  color: #4c5a6b;
  font-size: 0.95rem;
}

.accordion {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.panel-toggle {
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  background: linear-gradient(120deg, #0e1826, #1f3046);
  color: #f4f2ec;
  border: none;
  padding: 16px 18px;
  border-radius: 12px;
  cursor: pointer;
  font-size: 1.05rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  box-shadow: 0 10px 22px rgba(0, 0, 0, 0.12);
  transition: transform 0.2s ease, box-shadow 0.3s ease;
}

.panel-toggle:hover,
.panel-toggle:focus-visible {
  transform: translateY(-2px);
  box-shadow: 0 14px 26px rgba(0, 0, 0, 0.16);
  outline: none;
}

.panel-label {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-weight: 600;
  letter-spacing: 0.16em;
}

.panel-caret {
  width: 12px;
  height: 12px;
  border-right: 2px solid #f4f2ec;
  border-bottom: 2px solid #f4f2ec;
  transform: rotate(45deg);
  transition: transform 0.3s ease;
}

.panel-toggle[aria-expanded="true"] .panel-caret {
  transform: rotate(-135deg);
}

.panel-content {
  border: 1px solid rgba(0, 0, 0, 0.07);
  border-radius: 14px;
  padding: 0 18px;
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.55s ease, opacity 0.45s ease, transform 0.45s ease;
  opacity: 0;
  transform: translateY(-6px);
  background: #ffffff;
  box-shadow: inset 0 0 0 1px rgba(0, 0, 0, 0.02);
}

.panel-content.open {
  opacity: 1;
  transform: translateY(0);
  padding: 18px;
}

.panel-intro {
  margin-top: 0;
  color: #4c5a6b;
}

.report-card {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.report-cover {
  width: 100%;
  border-radius: 12px;
  box-shadow: 0 14px 30px rgba(0, 0, 0, 0.12);
  object-fit: cover;
  border: 1px solid rgba(0, 0, 0, 0.06);
}

.report-meta {
  display: flex;
  align-items: center;
  justify-content: space-between;
  font-size: 0.95rem;
  color: #4c5a6b;
  gap: 8px;
}

.tag {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: #e8f6f8;
  color: #1f4a67;
  padding: 6px 10px;
  border-radius: 999px;
  font-weight: 600;
  letter-spacing: 0.04em;
}

@media (max-width: 640px) {
  .title {
    font-size: 2.4rem;
  }

  section {
    padding: 26px;
  }

  .panel-label {
    letter-spacing: 0.12em;
  }
}