/* EveryUtils — Design system Notion-style */

:root {
  --bg-main: #ffffff;
  --bg-sidebar: #f7f7f5;
  --border-color: #ededeb;
  --text-primary: #37352f;
  --text-secondary: #7a7a78;
  --hover-bg: #efefed;
  --active-bg: #e8e8e6;
  --accent-color: #2383e2;
  --accent-dark: #1b68bc;
  --accent-darker: #144f8e;
  --accent-light: #e3f2fd;
  --accent-red: #eb5757;
  --red-hover-bg: #fbebeb;
  --red-hover-border: #f5c2c2;
  --font-family: 'Inter', -apple-system, BlinkMacSystemFont, "Segoe UI", Helvetica, Arial, sans-serif;
  --sidebar-width: 240px;
}

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

body {
  background-color: var(--bg-main);
  color: var(--text-primary);
  font-family: var(--font-family);
  overflow: hidden;
  height: 100vh;
  width: 100vw;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

.app-container {
  display: flex;
  height: 100vh;
  width: 100vw;
  overflow: hidden;
  position: relative;
}

/* ---------- Sidebar ---------- */

.sidebar {
  width: var(--sidebar-width);
  min-width: var(--sidebar-width);
  max-width: var(--sidebar-width);
  background-color: var(--bg-sidebar);
  border-right: 1px solid var(--border-color);
  display: flex;
  flex-direction: column;
  position: relative;
  height: 100%;
  z-index: 10;
  transition: margin-left 0.25s cubic-bezier(0.4, 0, 0.2, 1);
}

.app-container.sidebar-collapsed .sidebar {
  margin-left: calc(-1 * var(--sidebar-width));
}

.workspace-header {
  padding: 14px 14px 10px 14px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  position: relative;
}

.workspace-selector {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 4px 8px;
  border-radius: 6px;
  cursor: pointer;
  user-select: none;
  flex-grow: 1;
  overflow: hidden;
  transition: background-color 0.15s ease;
}

.workspace-selector:hover {
  background-color: var(--hover-bg);
}

.workspace-avatar {
  width: 18px;
  height: 18px;
  background-color: var(--text-primary);
  color: #ffffff;
  font-weight: 700;
  font-size: 11px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 4px;
}

.workspace-name {
  font-size: 14px;
  font-weight: 500;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.workspace-arrows {
  font-size: 10px;
  color: var(--text-secondary);
}

.collapse-btn {
  background: none;
  border: none;
  width: 24px;
  height: 24px;
  border-radius: 4px;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--text-secondary);
  opacity: 0;
  transition: opacity 0.2s, background-color 0.15s;
}

.sidebar:hover .collapse-btn {
  opacity: 1;
}

.collapse-btn:hover {
  background-color: var(--hover-bg);
  color: var(--text-primary);
}

.sidebar-menu {
  padding: 0 10px;
  margin-bottom: 16px;
}

.menu-item {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 6px 12px;
  border-radius: 6px;
  font-size: 14px;
  color: var(--text-primary);
  cursor: pointer;
  user-select: none;
  transition: background-color 0.15s ease;
  text-decoration: none;
}

.menu-item:hover {
  background-color: var(--hover-bg);
}

.menu-item.active {
  background-color: var(--active-bg);
  font-weight: 500;
}

.menu-item.disabled {
  opacity: 0.5;
  cursor: not-allowed;
}

.menu-item.disabled:hover {
  background-color: transparent;
}

.menu-item-icon {
  font-size: 16px;
  display: flex;
  align-items: center;
  justify-content: center;
  width: 18px;
  height: 18px;
}

.menu-item-text {
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  flex-grow: 1;
}

.menu-shortcut {
  font-size: 10px;
  color: var(--text-secondary);
  border: 1px solid var(--border-color);
  padding: 1px 4px;
  border-radius: 4px;
  background-color: #ffffff;
  font-family: monospace;
}

.sidebar-section {
  padding: 0 10px;
  margin-bottom: 20px;
  flex-grow: 1;
  display: flex;
  flex-direction: column;
  overflow: hidden;
}

.history-section {
  border-top: 1px solid var(--border-color);
  padding-top: 10px;
}

.section-title {
  font-size: 11px;
  font-weight: 600;
  color: var(--text-secondary);
  text-transform: uppercase;
  letter-spacing: 0.5px;
  padding: 6px 12px;
  user-select: none;
}

.history-title {
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.sidebar-footer {
  padding: 10px;
  border-top: 1px solid var(--border-color);
}

.resize-handle {
  position: absolute;
  top: 0;
  right: -2px;
  width: 4px;
  height: 100%;
  cursor: col-resize;
  z-index: 20;
}

.resize-handle:hover {
  background-color: rgba(0, 0, 0, 0.05);
}

.sidebar-toggle-btn {
  position: absolute;
  top: 14px;
  left: 14px;
  background-color: transparent;
  border: none;
  width: 28px;
  height: 28px;
  border-radius: 4px;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--text-secondary);
  transition: background-color 0.2s, opacity 0.2s;
  opacity: 0;
  pointer-events: none;
  z-index: 5;
}

.app-container.sidebar-collapsed .sidebar-toggle-btn {
  opacity: 1;
  pointer-events: auto;
}

.sidebar-toggle-btn:hover {
  background-color: var(--hover-bg);
  color: var(--text-primary);
}

/* ---------- Main workspace ---------- */

.main-workspace {
  flex-grow: 1;
  height: 100%;
  display: flex;
  flex-direction: column;
  background-color: var(--bg-main);
  overflow-y: auto;
  position: relative;
}

.workspace-header-bar {
  height: 48px;
  min-height: 48px;
  border-bottom: 1px solid transparent;
  display: flex;
  align-items: center;
  padding: 0 24px;
  gap: 8px;
  user-select: none;
}

.app-container.sidebar-collapsed .workspace-header-bar {
  padding-left: 54px;
}

.breadcrumbs {
  display: flex;
  align-items: center;
  gap: 6px;
  font-size: 14px;
  color: var(--text-secondary);
}

.breadcrumb-item {
  cursor: pointer;
  transition: color 0.15s;
}

.breadcrumb-item:hover {
  color: var(--text-primary);
}

.breadcrumb-item.active {
  color: var(--text-primary);
  font-weight: 500;
  cursor: default;
}

.breadcrumb-separator {
  color: #ccc;
}

/* ---------- Tool container / calculator ---------- */

.tool-container {
  flex-grow: 1;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 24px;
  min-height: calc(100vh - 48px);
}

.calculator-card {
  width: 360px;
  background-color: #ffffff;
  border: 1px solid var(--border-color);
  border-radius: 12px;
  box-shadow: 0 1px 3px rgba(0, 0, 0, 0.02), 0 4px 16px rgba(0, 0, 0, 0.04);
  padding: 24px;
  transition: width 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  overflow: hidden;
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.calculator-card.scientific {
  width: 480px;
}

.calc-card-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.calc-mode-title {
  font-size: 15px;
  font-weight: 600;
  color: var(--text-primary);
}

.segmented-control {
  background-color: var(--hover-bg);
  border-radius: 6px;
  padding: 2px;
  display: flex;
  gap: 2px;
}

.seg-btn {
  border: none;
  background: none;
  font-family: var(--font-family);
  font-size: 12px;
  font-weight: 500;
  padding: 4px 10px;
  border-radius: 4px;
  cursor: pointer;
  color: var(--text-secondary);
  transition: all 0.15s ease;
}

.seg-btn:hover {
  color: var(--text-primary);
}

.seg-btn.active {
  background-color: #ffffff;
  color: var(--text-primary);
  box-shadow: 0 1px 2px rgba(0, 0, 0, 0.05);
}

.calc-display {
  background-color: var(--bg-sidebar);
  border: 1px solid var(--border-color);
  border-radius: 8px;
  padding: 16px;
  display: flex;
  flex-direction: column;
  align-items: flex-end;
  justify-content: space-between;
  min-height: 100px;
  gap: 4px;
  word-wrap: break-word;
  word-break: break-all;
  position: relative;
}

.calc-expr {
  font-size: 14px;
  color: var(--text-secondary);
  min-height: 18px;
  text-align: right;
  width: 100%;
  overflow-x: auto;
  white-space: nowrap;
  scrollbar-width: none;
}

.calc-expr::-webkit-scrollbar {
  display: none;
}

.calc-current {
  font-size: 36px;
  font-weight: 500;
  color: var(--text-primary);
  text-align: right;
  width: 100%;
  overflow: hidden;
  white-space: nowrap;
  text-overflow: clip;
  line-height: 1.1;
  transition: font-size 0.1s ease;
}

.calc-badges {
  display: flex;
  gap: 6px;
  position: absolute;
  top: 8px;
  left: 12px;
}

.badge {
  font-size: 10px;
  font-weight: 600;
  color: var(--text-secondary);
  background-color: var(--active-bg);
  padding: 2px 6px;
  border-radius: 4px;
  cursor: pointer;
  user-select: none;
}

.badge:hover {
  background-color: var(--border-color);
  color: var(--text-primary);
}

.calc-keypad {
  display: grid;
  gap: 8px;
  transition: all 0.3s;
}

.calc-keypad.standard {
  grid-template-columns: repeat(4, 1fr);
}

.calc-keypad.scientific {
  grid-template-columns: repeat(5, 1fr);
}

.calc-btn {
  border: 1px solid var(--border-color);
  background-color: #ffffff;
  color: var(--text-primary);
  font-family: var(--font-family);
  font-size: 16px;
  font-weight: 500;
  height: 48px;
  border-radius: 6px;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  user-select: none;
  transition: background-color 0.15s, color 0.15s, transform 0.05s, border-color 0.15s;
}

.calc-btn:hover {
  background-color: var(--hover-bg);
}

.calc-btn:active,
.calc-btn.active-press {
  background-color: var(--active-bg);
  transform: scale(0.97);
}

.calc-btn.operator {
  background-color: var(--bg-sidebar);
  color: var(--text-primary);
}

.calc-btn.operator:hover {
  background-color: var(--hover-bg);
}

.calc-btn.sci-op {
  background-color: var(--bg-sidebar);
  color: var(--text-secondary);
  font-size: 14px;
}

.calc-btn.sci-op:hover {
  color: var(--text-primary);
}

.calc-btn.clear {
  color: var(--accent-red);
}

.calc-btn.clear:hover {
  background-color: var(--red-hover-bg);
  border-color: var(--red-hover-border);
}

.calc-btn.equals {
  background-color: var(--accent-color);
  color: #ffffff;
  border-color: var(--accent-color);
  font-weight: 600;
}

.calc-btn.equals:hover {
  background-color: var(--accent-dark);
}

.calc-btn.equals:active,
.calc-btn.equals.active-press {
  background-color: var(--accent-darker);
}

.badge-soon {
  font-size: 9px;
  background-color: var(--active-bg);
  color: var(--text-secondary);
  padding: 1px 5px;
  border-radius: 4px;
  font-weight: 600;
  margin-left: auto;
}

/* ---------- History ---------- */

.history-list {
  flex-grow: 1;
  overflow-y: auto;
  display: flex;
  flex-direction: column;
  gap: 4px;
  margin-top: 4px;
  padding-right: 2px;
}

.history-list::-webkit-scrollbar {
  width: 4px;
}

.history-list::-webkit-scrollbar-thumb {
  background: var(--border-color);
  border-radius: 4px;
}

.history-item {
  padding: 6px 12px;
  border-radius: 6px;
  cursor: pointer;
  display: flex;
  flex-direction: column;
  align-items: flex-end;
  gap: 2px;
  transition: background-color 0.15s;
}

.history-item:hover {
  background-color: var(--hover-bg);
}

.hist-expr {
  font-size: 11px;
  color: var(--text-secondary);
  width: 100%;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  text-align: right;
}

.hist-res {
  font-size: 13px;
  font-weight: 600;
  color: var(--text-primary);
  width: 100%;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  text-align: right;
}

.no-history {
  font-size: 12px;
  color: var(--text-secondary);
  text-align: center;
  padding: 20px 0;
  font-style: italic;
}

.history-clear-btn {
  font-family: var(--font-family);
  font-size: 11px;
  color: var(--text-secondary);
  background: none;
  border: none;
  padding: 4px 12px;
  border-radius: 4px;
  cursor: pointer;
  text-align: left;
  align-self: flex-start;
  margin-top: 4px;
  display: none;
}

.history-clear-btn:hover {
  background-color: var(--hover-bg);
  color: var(--text-primary);
}

/* ---------- Modals ---------- */

.modal-overlay {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background-color: rgba(15, 15, 15, 0.4);
  backdrop-filter: blur(2px);
  z-index: 100;
  display: none;
  align-items: flex-start;
  justify-content: center;
  padding-top: 10vh;
  animation: fadeIn 0.15s ease;
}

.command-palette {
  width: 540px;
  background-color: #ffffff;
  border-radius: 12px;
  box-shadow: 0 16px 40px rgba(0, 0, 0, 0.12), 0 1px 3px rgba(0, 0, 0, 0.04);
  border: 1px solid var(--border-color);
  display: flex;
  flex-direction: column;
  overflow: hidden;
  max-height: 380px;
  animation: scaleUp 0.15s ease;
}

.palette-search-container {
  display: flex;
  align-items: center;
  padding: 12px 16px;
  border-bottom: 1px solid var(--border-color);
  gap: 10px;
}

.palette-search-icon {
  color: var(--text-secondary);
  display: flex;
  align-items: center;
}

.palette-input {
  border: none;
  outline: none;
  font-family: var(--font-family);
  font-size: 15px;
  color: var(--text-primary);
  width: 100%;
}

.palette-input::placeholder {
  color: var(--text-secondary);
}

.palette-results {
  padding: 8px;
  overflow-y: auto;
}

.palette-item {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 8px 12px;
  border-radius: 6px;
  cursor: pointer;
  user-select: none;
  transition: background-color 0.15s;
}

.palette-item.selected {
  background-color: var(--hover-bg);
}

.palette-item-icon {
  font-size: 18px;
}

.palette-item-details {
  display: flex;
  flex-direction: column;
  flex-grow: 1;
}

.palette-item-name {
  font-size: 14px;
  font-weight: 500;
  color: var(--text-primary);
}

.palette-item-desc {
  font-size: 11px;
  color: var(--text-secondary);
}

.standard-modal {
  width: 440px;
  background-color: #ffffff;
  border-radius: 12px;
  box-shadow: 0 12px 32px rgba(0, 0, 0, 0.08), 0 1px 3px rgba(0, 0, 0, 0.04);
  border: 1px solid var(--border-color);
  display: flex;
  flex-direction: column;
  overflow: hidden;
  animation: scaleUp 0.15s ease;
}

.modal-header {
  padding: 16px 20px;
  border-bottom: 1px solid var(--border-color);
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.modal-title {
  font-size: 15px;
  font-weight: 600;
}

.modal-close {
  background: none;
  border: none;
  color: var(--text-secondary);
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 4px;
  padding: 4px;
}

.modal-close:hover {
  background-color: var(--hover-bg);
  color: var(--text-primary);
}

.modal-body {
  padding: 20px;
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.settings-group {
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.shortcuts-group {
  border-top: 1px solid var(--border-color);
  padding-top: 16px;
}

.settings-label {
  font-size: 12px;
  font-weight: 600;
  color: var(--text-secondary);
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.settings-control {
  display: flex;
  align-items: center;
  justify-content: space-between;
  border: 1px solid var(--border-color);
  padding: 10px 14px;
  border-radius: 8px;
  background-color: var(--bg-sidebar);
}

.settings-name {
  font-size: 14px;
  font-weight: 500;
}

.settings-select {
  background-color: #ffffff;
  border: 1px solid var(--border-color);
  border-radius: 6px;
  font-family: var(--font-family);
  font-size: 13px;
  padding: 4px 8px;
  outline: none;
  color: var(--text-primary);
  cursor: pointer;
}

.shortcuts-grid {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 8px 16px;
  font-size: 13px;
  align-items: center;
}

.kbd-shortcut {
  background-color: var(--bg-sidebar);
  border: 1px solid var(--border-color);
  border-radius: 4px;
  padding: 2px 6px;
  font-family: monospace;
  font-size: 11px;
  justify-self: start;
}

/* ---------- Converter ---------- */

.converter-card {
  width: 420px;
  background-color: #ffffff;
  border: 1px solid var(--border-color);
  border-radius: 12px;
  box-shadow: 0 1px 3px rgba(0, 0, 0, 0.02), 0 4px 16px rgba(0, 0, 0, 0.04);
  padding: 24px;
  overflow: hidden;
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.converter-categories {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
}

.converter-cat-btn {
  border: 1px solid var(--border-color);
  background-color: #ffffff;
  font-family: var(--font-family);
  font-size: 12px;
  font-weight: 500;
  color: var(--text-secondary);
  padding: 6px 10px;
  border-radius: 6px;
  cursor: pointer;
  transition: all 0.15s ease;
  display: flex;
  align-items: center;
  gap: 5px;
}

.converter-cat-btn:hover {
  background-color: var(--hover-bg);
  color: var(--text-primary);
}

.converter-cat-btn.active {
  background-color: var(--accent-light);
  border-color: var(--accent-color);
  color: var(--accent-color);
}

.converter-row {
  display: flex;
  align-items: flex-end;
  gap: 8px;
}

.converter-field {
  display: flex;
  flex-direction: column;
  gap: 6px;
  flex: 1;
}

.converter-label {
  font-size: 11px;
  font-weight: 600;
  color: var(--text-secondary);
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.converter-input,
.converter-select {
  width: 100%;
  background-color: var(--bg-sidebar);
  border: 1px solid var(--border-color);
  border-radius: 8px;
  font-family: var(--font-family);
  font-size: 16px;
  color: var(--text-primary);
  padding: 12px 14px;
  outline: none;
  transition: border-color 0.15s, background-color 0.15s;
}

.converter-input {
  font-size: 18px;
  font-weight: 500;
  -moz-appearance: textfield;
}

.converter-input::-webkit-outer-spin-button,
.converter-input::-webkit-inner-spin-button {
  -webkit-appearance: none;
  margin: 0;
}

.converter-input:focus,
.converter-select:focus {
  border-color: var(--accent-color);
  background-color: #ffffff;
}

.converter-swap {
  background: none;
  border: 1px solid var(--border-color);
  width: 40px;
  height: 44px;
  border-radius: 8px;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--text-secondary);
  transition: all 0.15s ease;
  flex-shrink: 0;
}

.converter-swap:hover {
  background-color: var(--hover-bg);
  color: var(--text-primary);
  border-color: var(--accent-color);
}

.converter-result {
  background-color: var(--bg-sidebar);
  border: 1px solid var(--border-color);
  border-radius: 8px;
  padding: 16px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 8px;
  min-height: 58px;
}

.converter-result-value {
  font-size: 24px;
  font-weight: 600;
  color: var(--text-primary);
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.converter-result-unit {
  font-size: 14px;
  font-weight: 500;
  color: var(--text-secondary);
  flex-shrink: 0;
}

/* ---------- Mobile ---------- */

.mobile-backdrop {
  display: none;
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background-color: rgba(0, 0, 0, 0.3);
  z-index: 8;
}

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

@keyframes scaleUp {
  from { transform: scale(0.97); opacity: 0; }
  to { transform: scale(1); opacity: 1; }
}

@media (max-width: 768px) {
  :root {
    --sidebar-width: 260px;
  }

  .sidebar {
    position: fixed;
    top: 0;
    left: 0;
    bottom: 0;
    transform: translateX(-100%);
    transition: transform 0.25s cubic-bezier(0.4, 0, 0.2, 1);
    z-index: 100;
    width: var(--sidebar-width);
  }

  .app-container.sidebar-open .sidebar {
    transform: translateX(0);
  }

  .app-container.sidebar-open .mobile-backdrop {
    display: block;
  }

  .resize-handle {
    display: none;
  }

  .sidebar-toggle-btn {
    opacity: 1;
    pointer-events: auto;
  }

  .workspace-header-bar {
    padding-left: 54px;
  }

  .tool-container {
    padding: 16px;
    align-items: flex-start;
    padding-top: 24px;
  }

  .calculator-card {
    width: 100% !important;
    border: none;
    box-shadow: none;
    padding: 0;
  }

  .converter-card {
    width: 100% !important;
    border: none;
    box-shadow: none;
    padding: 0;
  }

  .calc-display {
    min-height: 120px;
    padding: 12px;
  }

  .calc-current {
    font-size: 32px;
  }

  .command-palette,
  .standard-modal {
    width: 90%;
    max-width: 440px;
  }
}