/* ShumaTrack Mini App — Telegram-native CSS */

/* ---- CSS Variables: Telegram theme integration ---- */
:root {
  --bg-color: var(--tg-theme-bg-color, #ffffff);
  --text-color: var(--tg-theme-text-color, #1f2937);
  --hint-color: var(--tg-theme-hint-color, #6b7280);
  --link-color: var(--tg-theme-link-color, #3b82f6);
  --button-color: var(--tg-theme-button-color, #3b82f6);
  --button-text: var(--tg-theme-button-text-color, #ffffff);
  --secondary-bg: var(--tg-theme-secondary-bg-color, #f3f4f6);
  --section-bg: var(--tg-theme-section-bg-color, #ffffff);
  --section-header: var(--tg-theme-section-header-text-color, #6b7280);
  --accent: var(--tg-theme-accent-text-color, #3b82f6);

  --card-bg: var(--section-bg);
  --card-shadow: 0 1px 3px rgba(0,0,0,0.08);
  --border-color: #e5e7eb;
  --radius: 12px;
  --radius-sm: 8px;
  --safe-bottom: env(safe-area-inset-bottom, 0px);
}

/* ---- Reset & Base ---- */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html, body {
  height: 100%;
  overflow: hidden;
}

body {
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
  font-size: 14px;
  line-height: 1.5;
  color: var(--text-color);
  background-color: var(--secondary-bg);
  -webkit-font-smoothing: antialiased;
  -webkit-tap-highlight-color: transparent;
}

/* ---- App container ---- */
.app-container {
  display: flex;
  flex-direction: column;
  height: 100vh;
  height: 100dvh;
  overflow: hidden;
  padding-bottom: var(--safe-bottom);
}

/* ---- Loading ---- */
.loading-container {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  height: 100vh;
  height: 100dvh;
  gap: 16px;
}

.loading-spinner {
  width: 40px;
  height: 40px;
  border: 3px solid var(--border-color);
  border-top-color: var(--button-color);
  border-radius: 50%;
  animation: spin 0.8s linear infinite;
}

@keyframes spin {
  to { transform: rotate(360deg); }
}

.loading-text {
  color: var(--hint-color);
  font-size: 15px;
}

/* ---- Error banner ---- */
.error-banner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 8px 16px;
  background: #fef2f2;
  color: #dc2626;
  font-size: 13px;
  border-bottom: 1px solid #fecaca;
}

.error-dismiss {
  background: none;
  border: none;
  color: #dc2626;
  font-size: 16px;
  cursor: pointer;
  padding: 4px 8px;
}

/* ---- Toolbar ---- */
.toolbar {
  background: var(--bg-color);
  padding: 8px 12px;
  border-bottom: 1px solid var(--border-color);
  flex-shrink: 0;
}

.toolbar-top {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 8px;
}

.toolbar-mid {
  display: flex;
  gap: 8px;
  margin-bottom: 8px;
}

.toolbar-bottom {
  display: flex;
}

/* Entity toggle (Tasks / Bugs) */
.entity-toggle {
  display: flex;
  gap: 4px;
}

.entity-btn {
  padding: 6px 16px;
  border: 1px solid var(--border-color);
  border-radius: 20px;
  background: var(--bg-color);
  color: var(--hint-color);
  font-size: 13px;
  font-weight: 500;
  cursor: pointer;
  transition: all 0.15s;
}

.entity-btn.active {
  background: var(--button-color);
  color: var(--button-text);
  border-color: var(--button-color);
}

/* View toggle (Board / Table / Backlog) */
.view-toggle {
  display: flex;
  width: 100%;
  gap: 0;
  border: 1px solid var(--border-color);
  border-radius: var(--radius-sm);
  overflow: hidden;
}

.view-btn {
  flex: 1;
  padding: 6px 0;
  border: none;
  background: var(--bg-color);
  color: var(--hint-color);
  font-size: 12px;
  font-weight: 500;
  cursor: pointer;
  transition: all 0.15s;
}

.view-btn + .view-btn {
  border-left: 1px solid var(--border-color);
}

.view-btn.active {
  background: var(--button-color);
  color: var(--button-text);
}

/* Search */
.search-bar {
  flex: 1;
}

.search-input {
  width: 100%;
  padding: 8px 12px;
  border: 1px solid var(--border-color);
  border-radius: var(--radius-sm);
  background: var(--secondary-bg);
  color: var(--text-color);
  font-size: 13px;
  outline: none;
}

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

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

/* Filter */
.filter-bar {
  flex-shrink: 0;
}

.filter-select {
  padding: 8px 12px;
  border: 1px solid var(--border-color);
  border-radius: var(--radius-sm);
  background: var(--secondary-bg);
  color: var(--text-color);
  font-size: 13px;
  outline: none;
  -webkit-appearance: none;
  appearance: none;
}

/* Create button */
.create-btn {
  width: 40px;
  height: 40px;
  border-radius: 50%;
  border: none;
  background: var(--button-color);
  color: var(--button-text);
  font-size: 24px;
  font-weight: 300;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  transition: transform 0.15s;
}

.create-btn:active {
  transform: scale(0.92);
}

/* ---- Content area ---- */
.content-area {
  flex: 1;
  overflow: auto;
  -webkit-overflow-scrolling: touch;
}

/* ---- Board (Kanban) ---- */
.board {
  display: flex;
  gap: 8px;
  padding: 12px;
  overflow-x: auto;
  min-height: 100%;
  align-items: flex-start;
}

.board-column {
  flex: 0 0 260px;
  min-width: 260px;
  background: var(--bg-color);
  border-radius: var(--radius);
  overflow: hidden;
}

.column-header {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 10px 12px;
  border-bottom: 1px solid var(--border-color);
}

.column-color-strip {
  width: 4px;
  height: 18px;
  border-radius: 2px;
}

.column-title {
  font-size: 13px;
  font-weight: 600;
  flex: 1;
}

.column-count {
  font-size: 12px;
  color: var(--hint-color);
  background: var(--secondary-bg);
  padding: 2px 8px;
  border-radius: 10px;
}

.column-cards {
  padding: 8px;
  display: flex;
  flex-direction: column;
  gap: 6px;
  max-height: calc(100dvh - 200px);
  overflow-y: auto;
}

/* ---- Cards ---- */
.card {
  background: var(--card-bg);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-sm);
  padding: 10px 12px;
  cursor: pointer;
  transition: box-shadow 0.15s;
  min-height: 44px;
}

.card:active {
  box-shadow: var(--card-shadow);
}

.card-header {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 8px;
  margin-bottom: 6px;
}

.card-title {
  font-size: 13px;
  font-weight: 500;
  line-height: 1.3;
  word-break: break-word;
}

.card-badge {
  font-size: 10px;
  color: #fff;
  padding: 2px 6px;
  border-radius: 4px;
  white-space: nowrap;
  flex-shrink: 0;
}

.card-footer {
  display: flex;
  align-items: center;
  gap: 6px;
  flex-wrap: wrap;
}

.card-label {
  font-size: 11px;
  color: var(--hint-color);
  font-family: monospace;
}

.card-sprint {
  font-size: 11px;
  color: var(--link-color);
}

.card-assignee {
  font-size: 11px;
  color: var(--hint-color);
  margin-left: auto;
}

/* ---- Table ---- */
.table-container {
  padding: 12px;
  overflow-x: auto;
}

.data-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 13px;
}

.data-table th {
  text-align: left;
  padding: 8px 10px;
  font-size: 11px;
  font-weight: 600;
  color: var(--hint-color);
  text-transform: uppercase;
  letter-spacing: 0.5px;
  border-bottom: 2px solid var(--border-color);
  white-space: nowrap;
}

.data-table td {
  padding: 10px;
  border-bottom: 1px solid var(--border-color);
  vertical-align: middle;
}

.table-row {
  cursor: pointer;
  transition: background 0.1s;
}

.table-row:active {
  background: var(--secondary-bg);
}

.cell-title {
  font-weight: 500;
  max-width: 200px;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.cell-status {
  display: flex;
  align-items: center;
  gap: 6px;
  white-space: nowrap;
}

.status-dot {
  display: inline-block;
  width: 8px;
  height: 8px;
  border-radius: 50%;
  flex-shrink: 0;
}

.empty-state {
  text-align: center;
  color: var(--hint-color);
  padding: 48px 16px;
  font-size: 15px;
}

/* ---- Backlog view ---- */
.backlog-container {
  padding: 12px;
}

.section-title {
  font-size: 15px;
  font-weight: 600;
  margin-bottom: 12px;
  color: var(--text-color);
}

.backlog-list {
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.backlog-item {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 12px;
  background: var(--bg-color);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-sm);
  cursor: pointer;
  min-height: 44px;
}

.backlog-item:active {
  background: var(--secondary-bg);
}

.backlog-title {
  flex: 1;
  font-size: 13px;
  font-weight: 500;
}

.backlog-status,
.backlog-priority {
  font-size: 11px;
  color: var(--hint-color);
}

/* ---- Modal ---- */
.modal-overlay {
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.5);
  display: flex;
  align-items: flex-end;
  justify-content: center;
  z-index: 1000;
  animation: fadeIn 0.15s ease-out;
}

@keyframes fadeIn {
  from { opacity: 0; }
  to { opacity: 1; }
}

.modal-dialog {
  background: var(--bg-color);
  border-radius: var(--radius) var(--radius) 0 0;
  width: 100%;
  max-width: 480px;
  max-height: 85vh;
  overflow-y: auto;
  padding: 20px 16px calc(16px + var(--safe-bottom));
  animation: slideUp 0.2s ease-out;
}

@keyframes slideUp {
  from { transform: translateY(100%); }
  to { transform: translateY(0); }
}

.modal-title {
  font-size: 18px;
  font-weight: 600;
  margin-bottom: 16px;
}

/* Form components */
.form-group {
  margin-bottom: 14px;
}

.form-label {
  display: block;
  font-size: 12px;
  font-weight: 600;
  color: var(--hint-color);
  margin-bottom: 4px;
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.form-input,
.form-select,
.form-textarea {
  width: 100%;
  padding: 10px 12px;
  border: 1px solid var(--border-color);
  border-radius: var(--radius-sm);
  background: var(--secondary-bg);
  color: var(--text-color);
  font-size: 14px;
  font-family: inherit;
  outline: none;
}

.form-textarea {
  min-height: 80px;
  resize: vertical;
}

.form-input:focus,
.form-select:focus,
.form-textarea:focus {
  border-color: var(--button-color);
}

/* Modal detail view */
.modal-detail {
  margin-bottom: 16px;
}

.detail-row {
  display: flex;
  gap: 8px;
  padding: 8px 0;
  border-bottom: 1px solid var(--border-color);
  font-size: 14px;
}

.detail-label {
  color: var(--hint-color);
  font-weight: 500;
  min-width: 90px;
  flex-shrink: 0;
}

/* Status transitions */
.status-transitions {
  margin: 16px 0;
}

.section-label {
  font-size: 12px;
  font-weight: 600;
  color: var(--hint-color);
  text-transform: uppercase;
  letter-spacing: 0.5px;
  display: block;
  margin-bottom: 8px;
}

.transition-buttons {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.transition-btn {
  padding: 8px 16px;
  border: 2px solid;
  border-radius: 20px;
  background: var(--bg-color);
  color: var(--text-color);
  font-size: 13px;
  font-weight: 500;
  cursor: pointer;
  min-height: 44px;
  transition: all 0.15s;
}

.transition-btn:active {
  transform: scale(0.95);
}

/* Modal actions */
.modal-actions {
  display: flex;
  gap: 10px;
  margin-top: 16px;
}

.btn-cancel {
  flex: 1;
  padding: 12px;
  border: 1px solid var(--border-color);
  border-radius: var(--radius-sm);
  background: var(--bg-color);
  color: var(--text-color);
  font-size: 14px;
  font-weight: 500;
  cursor: pointer;
  min-height: 44px;
}

.btn-primary {
  flex: 1;
  padding: 12px;
  border: none;
  border-radius: var(--radius-sm);
  background: var(--button-color);
  color: var(--button-text);
  font-size: 14px;
  font-weight: 600;
  cursor: pointer;
  min-height: 44px;
}

.btn-primary:active,
.btn-cancel:active {
  transform: scale(0.97);
}