:root {
  --parchment-dark: #eee9dc;
  --sheet-bg: #faf7f0;
  --leaf-green: #5c6b5e;
  --ink-color: #3e3a34;
  
  --font-serif: 'Cormorant Garamond', serif;
  --font-script: 'Mr De Haviland', cursive;
}

body {
  margin: 0;
  padding: 0;
  background-color: var(--parchment-dark);
  background-image: radial-gradient(rgba(120, 140, 120, 0.08) 1.5px, transparent 1.5px);
  background-size: 20px 20px;
  color: var(--ink-color);
  font-family: var(--font-serif);
  min-height: 100vh;
  display: flex;
  justify-content: center;
  align-items: center;
}

.herbarium-container {
  width: 92%;
  max-width: 950px;
  padding: 40px 0;
}

.herbarium-header {
  text-align: center;
  margin-bottom: 50px;
}

.nav-back {
  color: inherit;
  text-decoration: none;
  font-size: 0.9rem;
  letter-spacing: 2px;
  border-bottom: 1px solid var(--ink-color);
}

.herbarium-title {
  font-family: var(--font-serif);
  font-size: clamp(3rem, 7vw, 5rem);
  font-weight: 400;
  margin: 20px 0 0 0;
  font-style: italic;
}

.herbarium-subtitle {
  font-size: 0.8rem;
  letter-spacing: 2.5px;
  opacity: 0.8;
  margin-top: 10px;
}

/* Specimen Grid */
.herbarium-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(285px, 1fr));
  gap: 35px;
}

/* Specimen Sheet */
.specimen-sheet {
  background: var(--sheet-bg);
  border: 1px solid #dcd7ca;
  padding: 25px;
  box-shadow: 2px 10px 25px rgba(62, 58, 52, 0.08);
  cursor: pointer;
  transition: transform 0.3s ease, box-shadow 0.3s ease;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  min-height: 380px;
}

.specimen-sheet:hover {
  transform: translateY(-4px);
  box-shadow: 4px 15px 35px rgba(62, 58, 52, 0.12);
}

/* Specimen plant graphics */
.specimen-vector {
  flex: 1;
  display: flex;
  justify-content: center;
  align-items: center;
  position: relative;
  min-height: 220px;
}

.leaf-branch, .fern-frond, .oak-cluster {
  background-color: var(--leaf-green);
  opacity: 0.65;
}

.leaf-branch {
  width: 4px;
  height: 160px;
  transform: rotate(-10deg);
  border-radius: 2px;
  position: relative;
}
.leaf-branch::before, .leaf-branch::after {
  content: '';
  position: absolute;
  width: 25px;
  height: 45px;
  background-color: var(--leaf-green);
  border-radius: 50% 0 50% 0;
}
.leaf-branch::before { top: 30px; left: -22px; transform: rotate(-45deg); }
.leaf-branch::after { top: 70px; right: -22px; transform: rotate(45deg); }

.fern-frond {
  width: 4px;
  height: 170px;
  position: relative;
  transform: rotate(5deg);
}
.fern-frond::before, .fern-frond::after {
  content: '';
  position: absolute;
  width: 15px;
  height: 25px;
  background-color: var(--leaf-green);
  border-radius: 50% 50% 0 0;
}
.fern-frond::before { top: 20px; left: -14px; transform: rotate(-60deg); }
.fern-frond::after { top: 50px; right: -14px; transform: rotate(60deg); }

.oak-cluster {
  width: 8px;
  height: 140px;
  position: relative;
}
.oak-cluster::before {
  content: '';
  position: absolute;
  top: 10px;
  left: -20px;
  width: 50px;
  height: 70px;
  background-color: var(--leaf-green);
  border-radius: 30% 70% 30% 70% / 50% 60% 40% 50%;
  transform: rotate(-30deg);
}

/* Botanical labels */
.botanical-label {
  border-top: 1px dashed #d0cabc;
  padding-top: 15px;
  margin-top: 15px;
}

.handwritten-title {
  font-family: var(--font-script);
  font-size: 2.8rem;
  line-height: 0.9;
  color: #5c554a;
}

.sheet-number {
  font-size: 0.75rem;
  color: #9c9482;
  letter-spacing: 1px;
  margin-top: 5px;
}

/* Modal spec block */
.botanical-modal {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: rgba(0, 0, 0, 0.35);
  display: flex;
  justify-content: center;
  align-items: center;
  z-index: 100;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.3s ease;
}

.botanical-modal.active {
  opacity: 1;
  pointer-events: auto;
}

.modal-content {
  background: var(--sheet-bg);
  border: 1px solid #c2bfae;
  padding: 40px;
  max-width: 450px;
  width: 85%;
  box-shadow: 0 15px 40px rgba(0,0,0,0.15);
  position: relative;
}

.close-modal {
  position: absolute;
  top: 15px;
  right: 20px;
  font-size: 2rem;
  cursor: pointer;
}

.modal-content h2 {
  font-family: var(--font-serif);
  font-size: 2rem;
  margin-top: 0;
  font-style: italic;
  border-bottom: 1px solid var(--ink-color);
  padding-bottom: 10px;
}

.specimen-table {
  width: 100%;
  margin-top: 20px;
  border-collapse: collapse;
}

.specimen-table td {
  padding: 8px 0;
  font-size: 0.9rem;
  letter-spacing: 1px;
}

.specimen-table tr td:first-child {
  font-weight: bold;
  color: #888;
}