/* ==========================================================================
   Filters — Document list filter bar
   ========================================================================== */

.filter-bar {
  padding: 0 24px;
  margin-bottom: 16px;
  max-width: 1200px;
  margin-left: auto;
  margin-right: auto;
}

.filter-bar-toggle {
  display: none;
}

.filter-toggle-button {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 10px 16px;
  font-size: 0.875rem;
  font-weight: 500;
  color: var(--text-secondary);
  background-color: var(--bg-secondary);
  border-radius: var(--radius-md);
  width: 100%;
  justify-content: center;
}

.filter-toggle-button:hover {
  background-color: var(--bg-hover);
}

.filter-toggle-icon {
  transition: transform var(--transition-fast);
}

.filter-toggle-icon--open {
  transform: rotate(180deg);
}

.filter-bar-fields {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  align-items: center;
}

.filter-field {
  flex: 1;
  min-width: 160px;
}

.filter-input {
  width: 100%;
  padding: 10px 14px;
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  background-color: var(--bg-color);
  color: var(--text-color);
  outline: none;
  transition: border-color var(--transition-fast);
}

.filter-input:focus {
  border-color: var(--primary-color);
  box-shadow: 0 0 0 3px var(--primary-color-light);
}

.filter-input::placeholder {
  color: var(--text-muted);
}

.filter-select {
  width: 100%;
  padding: 10px 14px;
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  background-color: var(--bg-color);
  color: var(--text-color);
  outline: none;
  appearance: none;
  background-image: url("data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%23888' stroke-width='2'%3e%3cpolyline points='6 9 12 15 18 9'/%3e%3c/svg%3e");
  background-repeat: no-repeat;
  background-position: right 10px center;
  background-size: 16px;
  padding-right: 36px;
  cursor: pointer;
  transition: border-color var(--transition-fast);
}

.filter-select:focus {
  border-color: var(--primary-color);
  box-shadow: 0 0 0 3px var(--primary-color-light);
}

/* --------------------------------------------------------------------------
   Filter drawer overlay (hidden on desktop)
   -------------------------------------------------------------------------- */

.filter-drawer-overlay {
  display: none;
}

.filter-drawer-header {
  display: none;
}

/* --------------------------------------------------------------------------
   Mobile: bottom sheet drawer
   -------------------------------------------------------------------------- */

@media (max-width: 1023px) {
  .filter-bar {
    padding: 0 16px;
  }

  .filter-bar-toggle {
    display: block;
    position: fixed;
    bottom: 20px;
    left: 20px;
    z-index: 199;
    margin: 0;
  }

  .filter-toggle-button {
    width: auto;
    padding: 10px 18px;
    font-size: 0.8125rem;
    background-color: var(--white);
    border: 1px solid var(--neutral-40);
    border-radius: 100px;
    box-shadow: 0 2px 12px rgba(18, 27, 44, 0.12), 0 1px 3px rgba(18, 27, 44, 0.08);
  }

  .filter-toggle-button:hover {
    background-color: var(--white);
  }

  /* Overlay backdrop */
  .filter-drawer-overlay {
    display: block;
    position: fixed;
    inset: 0;
    background-color: rgba(18, 27, 44, 0.4);
    z-index: 200;
    opacity: 0;
    visibility: hidden;
    transition: opacity 0.3s ease, visibility 0.3s ease;
  }

  .filter-drawer-overlay--visible {
    opacity: 1;
    visibility: visible;
  }

  /* Drawer container */
  .filter-bar-fields {
    position: fixed;
    bottom: 0;
    left: 0;
    right: 0;
    z-index: 201;
    display: flex;
    flex-direction: column;
    gap: 10px;
    padding: 0 20px 28px;
    background-color: var(--white);
    border-radius: 14px 14px 0 0;
    box-shadow: 0 -4px 24px rgba(18, 27, 44, 0.12);
    transform: translateY(100%);
    transition: transform 0.35s cubic-bezier(0.32, 0.72, 0, 1);
    max-height: 70vh;
    overflow-y: auto;
    -webkit-overflow-scrolling: touch;
  }

  .filter-bar-fields--visible {
    transform: translateY(0);
  }

  /* Drawer header */
  .filter-drawer-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 16px 0 4px;
    position: sticky;
    top: 0;
    background-color: var(--white);
    z-index: 1;
    border-bottom: 1px solid var(--neutral-20);
    margin-bottom: 2px;
  }

  .filter-drawer-title {
    font-size: 0.8125rem;
    font-weight: 600;
    color: var(--neutral-300);
    text-transform: uppercase;
    letter-spacing: 0.5px;
  }

  .filter-drawer-close {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 28px;
    height: 28px;
    border-radius: 50%;
    color: var(--neutral-300);
    transition: background-color var(--transition-fast), color var(--transition-fast);
  }

  .filter-drawer-close:hover {
    background-color: var(--neutral-20);
    color: var(--neutral-800);
  }

  .filter-field {
    min-width: 100%;
  }

  .filter-input,
  .filter-select {
    padding: 10px 12px;
    font-size: 0.875rem;
    border-color: var(--neutral-40);
  }

  .filter-select {
    padding-right: 34px;
    background-position: right 8px center;
    background-size: 14px;
  }
}