@import url('https://fonts.googleapis.com/css2?family=Syne:wght@400;700;800&family=DM+Mono:wght@400;500&display=swap');

/* ========== Reset & Theme ========== */

*,
*::before,
*::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

:root {
  --bg: #0d0f12;
  --lightest: #fffffe;
  --surface: #272B34;
  --border: #1e2229;
  --accent: #21C55E;
  --accent2: #D283E7;
  --text: #e8eaf0;
  --dark: #111111;
  --muted: #C4C8CF;
  --danger: #ff6b6b;
  --lighter: #595a5d;
  --modified: #343a46;
}

/* ========== Base Layout ========== */

body {
  background: var(--bg);
  color: var(--text);
  font-family: 'DM Mono', monospace;
  min-height: 100vh;
  padding: 2rem 1.5rem 0;
}

header {
  max-width: 1200px;
  margin: 0 auto 3rem;
  display: flex;
  align-items: flex-end;
  gap: 1rem;
  border-bottom: 1px solid var(--border);
  padding-bottom: .5rem;
}

header h1 {
  font-family: 'Syne', sans-serif;
  font-weight: 800;
  font-size: clamp(1.8rem, 4vw, 2.8rem);
  letter-spacing: -0.03em;
  line-height: 1;
}

header h1 span {
  color: var(--accent);
}

footer {
  max-width: 1200px;
  font-size: .85rem;
  color: var(--accent);
  margin: 2rem auto 0;
  text-align: center;
  position: sticky;
  bottom: 0;
  background: var(--bg);
  padding: 1rem 0;
}

/* ========== Generic Elements ========== */

.link {
  cursor: pointer;
  text-decoration: underline;
  color: inherit;
  font-size: 1rem;
}

.badge {
  background: var(--accent);
  color: var(--dark);
  font-size: .65rem;
  font-weight: 700;
  padding: .2rem .5rem;
  border-radius: 2px;
  letter-spacing: .08em;
  margin-bottom: .3rem;
}

/* ========== Modal ========== */

#popup-modal {
  z-index: 1000;
}

.modal,
#overlay {
  display: none;
  position: fixed;
  inset: 0;
  width: 100%;
  height: 100%;
  background-color: rgba(0,0,0,0.55);
  justify-content: center;
  align-items: center;
  z-index: inherit;
}

.modal.open {
  display: flex;
  z-index: 1001;
}

#overlay.open {
  z-index: 1000;
}

.modal-content {
  background-color: var(--lightest);
  color: var(--dark);
  padding: 25px;
  border: 1px solid #888;
  border-radius: 10px;
  width: 50%;
  line-height: 1.8;
}

.modal-content h2 {
  font-size: 1.5rem;
  margin-bottom: .5rem;
}

.modal-content p {
  font-size: 1.05rem;
}

.close-button {
  display: inline-flex; 
  align-items: center;
  justify-content: center;
  float: right;
  width: 2rem;  
  height: 2rem;
  font-size: 1.5rem;  
  line-height: 1; 
  border: 1px solid var(--dark);
  border-radius: 2px;
  padding: 0; 
  color: var(--dark);
  cursor: pointer;
  transition: transform 0.1s ease;
}

.close-button:hover {
  color: var(--surface);
  opacity: .58;
}

.close-button:active {
  color: var(--muted);
  transform: scale(.85);
}

/* ========== Upload Card ========== */

.upload-card {
  max-width: 620px;
  margin: 0 auto 3rem;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 2.5rem;
}

.upload-card.hidden {
  display: none;
}

.drop-zone {
  border: 2px dashed var(--border);
  border-radius: 6px;
  padding: 2.5rem 1.5rem;
  text-align: center;
  cursor: pointer;
  transition: border-color .2s, background .2s;
  position: relative;
}

.drop-zone:hover,
.drop-zone.dragging {
  border-color: var(--accent);
  background: rgba(200, 240, 80, .04);
}

.drop-zone input[type="file"] {
  position: absolute;
  inset: 0;
  opacity: 0;
  cursor: pointer;
  width: 100%;
  height: 100%;
}

.drop-zone .icon {
  font-size: 2.5rem;
  margin-bottom: .75rem;
  color: var(--accent);
}

.drop-zone p {
  color: var(--muted);
  font-size: .85rem;
  line-height: 1.6;
}

.drop-zone p strong {
  color: var(--text);
}

#filename {
  margin-top: .75rem;
  color: var(--accent);
  font-size: 1rem;
  font-weight: 700;
  min-height: 1.2em;
}

.btn {
  display: inline-block;
  margin-top: 1.25rem;
  padding: .85rem 2rem;
  width: 100%;
  background: var(--accent);
  color: var(--dark);
  font-family: 'Syne', sans-serif;
  font-weight: 700;
  font-size: .9rem;
  border: none;
  border-radius: 4px;
  cursor: pointer;
  letter-spacing: .04em;
  transition: opacity .2s, transform .1s;
}

.btn:hover {
  opacity: .58;
}

.btn:active {
  transform: scale(.85);
}

.error {
  background: rgba(240, 80, 80, .1);
  border: 1px solid var(--danger);
  color: var(--danger);
  border-radius: 4px;
  padding: .75rem 1rem;
  font-size: .85rem;
  margin-top: 1rem;
}

/* ========== Toolbar ========== */

.toolbar {
  max-width: 1200px;
  margin: 0 auto 2rem;
  display: none;
  align-items: center;
  gap: .75rem;
  flex-wrap: wrap;
}

.toolbar.visible {
  display: flex;
}

.toolbar-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-family: 'Syne', sans-serif;
  font-size: .85rem;
  font-weight: 700;
  height: 2.4rem; 
  padding: 0 1rem;
  border-radius: 4px;
  cursor: pointer;
  border: 1px solid var(--muted);
  background: transparent;
  color: var(--muted);
  transition: all .15s;
  white-space: nowrap;
}

.toolbar-btn:hover {
  border-color: var(--accent2);
  color: var(--accent2);
}

.toolbar-btn:active {
  transform: scale(.95);
}

.toolbar-btn.primary {
  background: var(--accent);
  color: var(--bg);
  border-color: var(--accent);
}

.toolbar-btn.primary:hover {
  opacity: .58;
}

.toolbar-btn.primary:active {
  transform: scale(.95);
}

.toolbar-btn.cancel,
.toolbar-btn.confirm {
  padding: .65rem 2rem;
  font-size: 1rem;
}

.toolbar-btn.cancel {
  color: var(--danger);
  border: 3px solid var(--danger);
}

.toolbar-btn.confirm {
  border: 3px solid var(--accent);
  color: var(--accent);
}

.toolbar-btn.cancel:hover,
.toolbar-btn.confirm:hover {
  border-color: var(--muted);
  color: var(--muted);
}

.toolbar-btn.cancel:active,
.toolbar-btn.confirm:active {
  transform: scale(.85);
}

.edit-count {
  font-size: .75rem;
  color: var(--accent2);
  margin-left: auto;
}

.edit-count strong {
  color: var(--accent2);
}

/* ========== Search Bar ========== */

.search-bar {
  max-width: 1200px;
  margin: 0 auto 1.75rem;
  display: none;
  position: relative;
}

.search-bar.visible {
  display: block;
}

.search-bar input {
  width: 100%;
  background: var(--surface);
  border: 1px solid var(--lighter);
  border-radius: 6px;
  padding: .65rem 2.5rem .65rem 1rem;
  color: var(--text);
  font-family: 'DM Mono', monospace;
  font-size: .85rem;
  outline: none;
  transition: border-color .2s;
}

.search-bar input:focus {
  border-color: var(--accent2);
}

.search-bar input::placeholder {
  color: var(--muted);
}

.search-bar .clear-search {
  position: absolute;
  right: .75rem;
  top: 50%;
  transform: translateY(-50%);
  background: none;
  border: none;
  color: var(--muted);
  cursor: pointer;
  font-size: 1.5rem;
  line-height: 1;
  display: none;
}

.search-bar .clear-search.visible {
  display: inline-block;
  transition: transform 0.1s ease;
}

.search-bar .clear-search.visible:hover {
  color: var(--accent2);
}

.search-bar .clear-search.visible:active {
  transform: translateY(-50%) scale(.85);
}

/* ========== Table Wrapper & Meta ========== */

.table-wrap {
  max-width: 1200px;
  margin: 0 auto;
  display: none;
}

.table-wrap.visible {
  display: block;
}

.table-meta {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: .75rem;
  margin-bottom: 1rem;
}

.table-meta .info {
  font-size: .85rem;
  color: var(--muted);
}

.table-meta .info strong {
  color: var(--text);
}

.clear-btn {
  font-family: 'Syne', sans-serif;
  font-size: .85rem;
  font-weight: 700;
  background: transparent;
  border: 1px solid var(--border);
  color: var(--text);
  padding: .35rem .9rem;
  border-radius: 4px;
  cursor: pointer;
  transition: border-color .2s, color .2s;
}

.clear-btn:hover {
  border-color: var(--danger);
  color: var(--danger);
}

/* ========== Table & Scrolling ========== */

.scroll-x {
  overflow-x: auto;
  overflow-y: hidden;
  border-radius: 8px;
  border: 1px solid var(--border);
  max-width: 100%;
}

table {
  width: auto;
  min-width: 100%;
  border-collapse: collapse;
  border-radius: 3px;
  white-space: nowrap;
  font-size: .82rem;
}

thead {
  background: var(--border); 
}

th,
td {
  min-width: 110px;
  white-space: nowrap;
  border: 1px solid var(--lighter); 
}

th {
  padding: .75rem 1rem;
  text-align: left;
  font-family: 'Syne', sans-serif;
  font-size: .8rem;
  font-weight: 700;
  letter-spacing: .06em;
  color: var(--text);
  user-select: none;
  cursor: pointer;
  transition: color .15s;
  position: relative;
  text-transform: uppercase;
  width: auto;
}

th:first-child {
  cursor: default;
}

th:not(:first-child):not(.col-action-th):hover {
  color: var(--accent2);
}

th.sort-active {
  color: var(--accent);
}

th .arrow {
  font-size: .85rem;
  opacity: 1;
  margin-left: .3rem;
}

th.sort-active .arrow {
  opacity: 1;
}

td {
  padding: .6rem 1rem;
  color: var(--text);
  max-width: 260px;
  overflow: hidden;
  text-overflow: ellipsis;
}

tr:hover td {
  background: rgba(255, 255, 255, .025);
}

/* First column (row index) */
th:first-child,
td:first-child {
  color: var(--accent2);
  font-size: 1rem;
  width: 1.25rem;
  min-width: 1.25rem;
  text-align: center;
  padding-left: .5rem;
  padding-right: .5rem;
  cursor: default;
}

.no-results {
  text-align: center;
  padding: 2rem;
  color: var(--muted);
  font-size: .85rem;
}

/* ========== Edit Mode (Cells) ========== */

td.editable {
  cursor: text;
}

td.editable:hover {
  background: rgba(80, 240, 200, .06) !important;
  outline: 1px solid var(--border);
  outline-offset: -1px;
}

td.editing {
  padding: 0 !important;
  outline: 2px solid var(--accent2) !important;
  outline-offset: -2px;
  background: rgba(80, 240, 200, .08) !important;
}

td.editing input {
  width: 100%;
  height: 100%;
  background: transparent;
  border: none;
  outline: none;
  color: var(--text);
  font-family: 'DM Mono', monospace;
  font-size: .82rem;
  padding: .6rem 1rem;
}

.edit-mode th {
  position: static;
  z-index: auto;
}

td.modified {
	background: var(--modified);
  /* border-bottom: 2px solid var(--accent2); */
}

tr.row-modified td:first-child {
  /* color: var(--accent2) !important; */
}

/* ========== Delete Row Cell ========== */

/* Delete-row column (second column when editing) */
td.delete-cell {
  width: 1.5rem;
  min-width: 1.5rem;
  max-width: 1.5rem;
  text-align: center;
  padding: 0 !important;
  opacity: 0;
  transition: opacity .15s;
}  

tr:hover td.delete-cell {
  opacity: 1;
}

td.delete-cell button {
  background: none;
  border: none;
  color: var(--danger);
  cursor: pointer;
  font-size: 1rem;
  padding: .4rem .5rem;
  line-height: 1;
  border-radius: 3px;
  transition: background .15s, transform .1s;
}

td.delete-cell button:hover {
  background: rgba(240, 80, 80, .15);
}

td.delete-cell button:active {
  transform: scale(1.5, 1.25);
}

/* ========== Column Header Edit Controls ========== */

th.col-action-th {
  width: 1.5rem;
  min-width: 1.5rem;
  max-width: 1.5rem;
  padding: 0 !important;
  text-align: center;
}

.col-action-th {
  cursor: default !important;
  width: 1rem;
  padding: 0 !important;
  text-align: center;
}

.add-col-th {
  cursor: pointer !important;
  color: var(--muted) !important;
  font-size: 1.1rem;
  padding: .5rem .75rem !important;
  transition: color .15s !important;
}

.add-col-th:hover {
  color: var(--accent) !important;
}

th .col-del {
  display: none;
  position: absolute;
  top: 50%;
  right: .3rem;
  transform: translateY(-50%);
  background: none;
  border: none;
  color: var(--danger);
  cursor: pointer;
  font-size: .75rem;
  padding: .1rem .25rem;
  border-radius: 2px;
  line-height: 1;
  opacity: .7;
}

th:hover .col-del {
  display: inline-block;
}

th .col-del:hover {
  opacity: 1;
  background: rgba(240, 80, 80, .15);
}

.col-name-input {
  background: transparent;
  border: none;
  border-bottom: 1px solid var(--accent2);
  outline: none;
  color: var(--accent2);
  font-family: 'Syne', sans-serif;
  font-size: .8rem;
  font-weight: bold;
  letter-spacing: .06em;
  /* width: calc(100% - 1.5rem); */
  width: 75%;
  padding: 0;
  text-transform: uppercase;
  cursor: text;
  user-select: text;
  pointer-events: all;
}

.col-name-input:focus {
  border-bottom-color: var(--accent2);
}

.col-delete-btn {
  position: absolute;
  right: .75rem;
  top: 50%;
  transform: translateY(-50%);
  background: none;
  border: none;
  color: var(--danger);
  cursor: pointer;
  font-size: .9rem;
  line-height: 1;
  padding: 0;
  opacity: 1;
}

.col-delete-btn:hover {
  opacity: .58;
}

/* ========== Add Row Button & Hint ========== */

.add-row-btn {
  display: none;
  width: 100%;
  padding: .45rem;
  background: transparent;
  border: 1px dashed var(--border);
  color: var(--accent2);
  font-family: 'Syne', sans-serif;
  font-size: 1rem;
  font-weight: 700;
  cursor: pointer;
  margin-top: .35rem;
  border-radius: 0 0 6px 6px;
  transition: all .15s;
}

.add-row-btn:hover {
  border-color: var(--accent);
  color: var(--accent);
  background: rgba(200, 240, 80, .04);
}

.add-row-btn.visible {
  display: block;
}

.hint {
  margin: 0 auto 2.5rem;
  max-width: 1200px;
  font-size: 1.15rem;
  font-weight: bold;
  color: var(--text);
  display: none;
  gap: .5rem;
  align-items: center;
  text-align: center;
}

.hint span {
  color: var(--text);
  font-size: 2rem;
}

.hint span.color {
  color: var(--accent2);
  font-size: 4rem;
}

.hint span.link {
  color: var(--text);
  font-size: 1rem;
}

.hint span.link:hover {
color: var(--accent2);
}