/* ============================================================
   ACCEPTED-PAPERS.CSS — Accepted Abstracts Page
   ============================================================ */

/* ——— Controls Bar (sticky below header) ——— */
.papers-controls {
  background-color: var(--color-sand);
  border-bottom: 1px solid var(--color-deep-08);
  padding: 1.1rem 0;
  position: sticky;
  top: var(--header-height);
  z-index: 50;
}

.papers-controls__inner {
  display: flex;
  align-items: center;
  gap: 1rem;
  flex-wrap: wrap;
}

/* ——— Search Input ——— */
.papers-search {
  position: relative;
  flex: 1;
  min-width: 200px;
  max-width: 360px;
}

.papers-search__icon {
  position: absolute;
  left: 0.875rem;
  top: 50%;
  transform: translateY(-50%);
  color: var(--color-slate);
  opacity: 0.45;
  pointer-events: none;
}

.papers-search__input {
  width: 100%;
  padding: 0.58rem 1rem 0.58rem 2.5rem;
  border: 1.5px solid var(--color-deep-12);
  border-radius: var(--radius-full);
  font-family: var(--font-heading);
  font-size: var(--text-small);
  background: var(--color-white);
  color: var(--color-deep);
  transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
  appearance: none;
  -webkit-appearance: none;
}

.papers-search__input:focus {
  outline: none;
  border-color: var(--color-forest);
  box-shadow: 0 0 0 3px var(--color-forest-10);
}

.papers-search__input::placeholder {
  color: var(--color-slate);
  opacity: 0.5;
}

/* Hide the native clear button on search inputs */
.papers-search__input::-webkit-search-cancel-button { display: none; }

/* ——— Filter Pill Buttons ——— */
.papers-filters {
  display: flex;
  gap: 0.45rem;
  flex-wrap: wrap;
}

.filter-pill {
  padding: 0.38rem 0.95rem;
  border-radius: var(--radius-full);
  border: 1.5px solid var(--color-deep-12);
  background: transparent;
  font-family: var(--font-heading);
  font-size: var(--text-caption);
  font-weight: 500;
  color: var(--color-slate);
  cursor: pointer;
  transition: border-color var(--transition-fast),
              color var(--transition-fast),
              background-color var(--transition-fast);
  letter-spacing: 0.02em;
  white-space: nowrap;
}

.filter-pill:hover {
  border-color: var(--color-forest);
  color: var(--color-forest);
  background: var(--color-forest-10);
}

.filter-pill--active {
  background: var(--color-forest);
  border-color: var(--color-forest);
  color: var(--color-white);
}

.filter-pill--active:hover {
  background: var(--color-deep);
  border-color: var(--color-deep);
  color: var(--color-white);
}

.filter-pill:focus-visible {
  outline: 2px solid var(--color-amber);
  outline-offset: 2px;
}

/* ——— Count Label ——— */
.papers-count {
  font-family: var(--font-mono);
  font-size: var(--text-caption);
  color: var(--color-slate);
  opacity: 0.65;
  margin-bottom: 2rem;
  letter-spacing: 0.06em;
}

/* ——— Paper Grid ——— */
.papers-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--card-gap);
}

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

@media (max-width: 640px) {
  .papers-grid { grid-template-columns: 1fr; }
}

/* ——— Paper Card ——— */
.paper-card {
  background: var(--color-white);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-sm);
  overflow: hidden;
  display: flex;
  flex-direction: column;
  transition: box-shadow var(--transition-base), transform var(--transition-base), border-color var(--transition-base);
  cursor: pointer;
  border: 1px solid transparent;
}

.paper-card:hover {
  box-shadow: var(--shadow-lg);
  transform: translateY(-4px);
  border-color: var(--color-forest-20);
}

/* Hidden state during search/filter */
.paper-card--hidden {
  display: none;
}

/* ——— Meta Bar (ID + Area + Pref) ——— */
.paper-card__meta-bar {
  display: flex;
  align-items: center;
  gap: 0.45rem;
  padding: 0.9rem 1.25rem 0;
  flex-wrap: wrap;
}

.paper-card__id {
  font-family: var(--font-mono);
  font-size: var(--text-caption);
  font-weight: 700;
  color: var(--color-white);
  background: var(--color-deep);
  padding: 0.18rem 0.55rem;
  border-radius: var(--radius-sm);
  letter-spacing: 0.08em;
  flex-shrink: 0;
}

.paper-card__area {
  font-family: var(--font-mono);
  font-size: var(--text-caption);
  color: var(--color-forest);
  background: var(--color-forest-10);
  border: 1px solid var(--color-forest-15);
  border-radius: var(--radius-sm);
  padding: 0.18rem 0.55rem;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  max-width: 170px;
}

.paper-card__pref {
  font-family: var(--font-mono);
  font-size: var(--text-caption);
  color: var(--color-amber);
  background: var(--color-amber-10);
  border: 1px solid var(--color-amber-15);
  border-radius: var(--radius-sm);
  padding: 0.18rem 0.55rem;
  margin-left: auto;
  flex-shrink: 0;
}

/* ——— Paper Title ——— */
.paper-card__title {
  font-family: var(--font-display);
  font-size: clamp(1rem, 1.4vw, 1.15rem);
  font-weight: 600;
  line-height: 1.35;
  color: var(--color-deep);
  padding: 0.85rem 1.25rem 0;
  flex: 1;
}

/* ——— Authors Row ——— */
.paper-card__authors {
  display: flex;
  align-items: center;
  gap: 0.7rem;
  padding: 0.8rem 1.25rem 1.25rem;
}

.paper-card__author-photo-wrap {
  width: 40px;
  height: 40px;
  border-radius: var(--radius-full);
  overflow: hidden;
  flex-shrink: 0;
  background: linear-gradient(135deg, var(--color-forest-15), var(--color-deep-08));
}

.paper-card__author-photo {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
  filter: grayscale(20%);
  transition: filter var(--transition-slow);
}

.paper-card:hover .paper-card__author-photo {
  filter: none;
}

.paper-card__author-avatar {
  width: 100%;
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-display);
  font-size: 1rem;
  font-weight: 600;
  color: var(--color-forest);
}

.paper-card__author-info {
  display: flex;
  flex-direction: column;
  gap: 0.1rem;
  min-width: 0;
}

.paper-card__lead-author {
  font-family: var(--font-heading);
  font-size: var(--text-small);
  font-weight: 600;
  color: var(--color-deep);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.paper-card__author-list {
  font-family: var(--font-body);
  font-size: var(--text-caption);
  color: var(--color-slate);
  opacity: 0.8;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  font-style: italic;
  line-height: 1.4;
}

/* ——— Empty State ——— */
.papers-empty {
  text-align: center;
  padding: 5rem 0;
  color: var(--color-slate);
  font-family: var(--font-body);
  grid-column: 1 / -1;
}

.papers-empty p {
  margin-bottom: 1.5rem;
  font-size: 1.05rem;
  line-height: 1.6;
  opacity: 0.8;
}

/* ——— Interactive Modal Overlay ——— */
.paper-modal-overlay {
  position: fixed;
  top: 0;
  left: 0;
  width: 100vw;
  height: 100vh;
  background-color: rgba(14, 25, 22, 0.72);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  z-index: 9999;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 2rem;
  box-sizing: border-box;
}

.paper-modal {
  background: var(--color-white);
  border-radius: var(--radius-lg);
  width: 100%;
  max-width: 860px;
  max-height: 90vh;
  overflow-y: auto;
  position: relative;
  box-shadow: 0 30px 60px -12px rgba(0, 0, 0, 0.4), 0 0 0 1px var(--color-forest-15);
  animation: modalFadeIn 0.35s cubic-bezier(0.16, 1, 0.3, 1) forwards;
  scrollbar-width: thin;
}

.paper-modal::-webkit-scrollbar {
  width: 6px;
}
.paper-modal::-webkit-scrollbar-thumb {
  background-color: var(--color-deep-20);
  border-radius: 4px;
}

.paper-modal__close {
  position: absolute;
  top: 1.25rem;
  right: 1.25rem;
  width: 2.2rem;
  height: 2.2rem;
  border-radius: var(--radius-full);
  background: var(--color-sand);
  border: 1px solid var(--color-deep-12);
  color: var(--color-deep);
  font-size: 1.5rem;
  font-weight: 300;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  transition: all 0.2s ease;
  z-index: 10;
  line-height: 1;
}

.paper-modal__close:hover {
  background: var(--color-forest);
  border-color: var(--color-forest);
  color: var(--color-white);
  transform: rotate(90deg);
}

.paper-modal__container {
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
  padding: 3rem;
}

/* Modal Header styling */
.paper-modal__header {
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
  padding-right: 3rem; /* Leave room for close button */
}

/* Left/Right layout inside the presenting author info tab */
.paper-modal__author-profile {
  display: flex;
  gap: 2.25rem;
  align-items: flex-start;
}

.paper-modal__author-photo-column {
  width: 220px;
  flex-shrink: 0;
}

.paper-modal__photo-wrap {
  width: 100%;
  height: 275px; /* Profile picture standard aspect ratio */
  border-radius: var(--radius-md);
  overflow: hidden;
  background: linear-gradient(135deg, var(--color-forest-10), var(--color-deep-08));
  border: 1.5px solid var(--color-forest-20);
  box-shadow: var(--shadow-sm);
  display: flex;
}

.paper-modal__photo {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}

.paper-modal__avatar {
  width: 100%;
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-display);
  font-size: 3rem;
  font-weight: 700;
  color: var(--color-forest);
  background: var(--color-forest-10);
}

.paper-modal__author-details-column {
  flex: 1;
  min-width: 0;
}

.paper-modal__meta-header {
  display: flex;
  gap: 0.6rem;
  align-items: center;
  flex-wrap: wrap;
}

.paper-modal__id {
  font-family: var(--font-mono);
  font-size: var(--text-caption);
  font-weight: 700;
  color: var(--color-white);
  background: var(--color-deep);
  padding: 0.2rem 0.65rem;
  border-radius: var(--radius-sm);
  letter-spacing: 0.08em;
  flex-shrink: 0;
}

.paper-modal__area {
  font-family: var(--font-mono);
  font-size: var(--text-caption);
  color: var(--color-forest);
  background: var(--color-forest-10);
  border: 1px solid var(--color-forest-15);
  padding: 0.2rem 0.65rem;
  border-radius: var(--radius-sm);
}

.paper-modal__title {
  font-family: var(--font-display);
  font-size: clamp(1.3rem, 2.4vw, 1.8rem);
  font-weight: 700;
  color: var(--color-deep);
  line-height: 1.3;
  margin: 0;
}

/* ——— Tabs Navigation ——— */
.paper-modal__tabs {
  display: flex;
  gap: 0.5rem;
  border-bottom: 2px solid var(--color-deep-08);
  padding-bottom: 0.5rem;
  margin-bottom: 0.5rem;
}

.paper-modal__tab-btn {
  padding: 0.5rem 1rem;
  font-family: var(--font-heading);
  font-size: var(--text-small);
  font-weight: 600;
  color: var(--color-slate);
  background: transparent;
  border: none;
  cursor: pointer;
  position: relative;
  transition: color var(--transition-fast);
}

.paper-modal__tab-btn:hover {
  color: var(--color-forest);
}

.paper-modal__tab-btn--active {
  color: var(--color-forest);
}

.paper-modal__tab-btn--active::after {
  content: '';
  position: absolute;
  bottom: -0.625rem; /* align on the 2px border line */
  left: 0;
  width: 100%;
  height: 2px;
  background-color: var(--color-forest);
}

/* ——— Tab Content ——— */
.paper-modal__tab-content {
  width: 100%;
}

.paper-modal__tab-content[hidden] {
  display: none !important;
}

/* Metadata Info Grid */
.paper-modal__info-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1.25rem 1.5rem;
  padding: 0.25rem 0 0 0;
}

.paper-modal__info-item {
  display: flex;
  flex-direction: column;
  gap: 0.25rem;
  min-width: 0;
}

.paper-modal__info-item--full {
  grid-column: 1 / -1;
}

.paper-modal__info-label {
  font-family: var(--font-mono);
  font-size: 0.68rem;
  color: var(--color-slate);
  text-transform: uppercase;
  letter-spacing: 0.06em;
  opacity: 0.65;
}

.paper-modal__info-val {
  font-family: var(--font-heading);
  font-size: var(--text-small);
  font-weight: 600;
  color: var(--color-deep);
  line-height: 1.4;
  word-break: break-word;
}

/* Dynamic visual box */
.paper-modal__visual {
  border-radius: var(--radius-md);
  overflow: hidden;
  max-height: 420px;
  width: 100%;
  border: 1.5px solid var(--color-deep-12);
  background: var(--color-deep-05);
  display: flex;
  justify-content: center;
  align-items: center;
}

.paper-modal__visual-img {
  max-width: 100%;
  max-height: 420px;
  object-fit: contain;
  display: block;
}

@keyframes modalFadeIn {
  from { opacity: 0; transform: scale(0.96) translateY(12px); }
  to { opacity: 1; transform: scale(1) translateY(0); }
}

/* ——— Responsive Layouts ——— */
@media (max-width: 768px) {
  .papers-controls__inner {
    flex-direction: column;
    align-items: flex-start;
    gap: 0.75rem;
  }

  .papers-search {
    max-width: 100%;
    width: 100%;
  }

  .paper-modal__container {
    padding: 2.2rem;
    gap: 1.25rem;
  }

  .paper-modal__header {
    padding-right: 0;
  }

  .paper-modal__author-profile {
    flex-direction: column;
    align-items: center;
    gap: 1.5rem;
  }

  .paper-modal__author-photo-column {
    width: 100%;
    max-width: 200px;
  }

  .paper-modal__info-grid {
    grid-template-columns: 1fr;
    gap: 1rem;
  }
}

@media (max-width: 480px) {
  .filter-pill {
    font-size: 0.7rem;
    padding: 0.3rem 0.7rem;
  }

  .paper-modal-overlay {
    padding: 1rem;
  }

  .paper-modal__container {
    padding: 1.5rem;
  }
}