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

body {
  font-family: 'DM Sans', system-ui, sans-serif;
  background: #ffffff;
  color: #1a1a1a;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

.login-page {
  min-height: 100vh;
  display: flex;
  justify-content: center;
  align-items: center;
  padding-top: 80px;
}

.login-container {
    width: 420px;
    padding: 40px;
    background: white;
    border-radius: 12px;
    box-shadow: 0 8px 30px rgba(0,0,0,0.1);
}

.login-form {
    display: flex;
    flex-direction: column;
    gap: 14px;
}

.login-container h2 {
    font-size: 28px;
    margin-bottom: 25px;
}

.error {
    color: #dc2626;
    font-size: 14px;
    margin-bottom: 12px;
}

/* Inputs */
.login-form input {
    padding: 12px;
    font-size: 15px;
    border: 1px solid #ddd;
    border-radius: 6px;
}

/* Button */
.login-form button {
    margin-top: 10px;
    padding: 12px;
    font-size: 15px;
    border: none;
    border-radius: 6px;
    background: #1a1a1a;
    color: white;
    cursor: pointer;
    transition: background 0.2s;
}

.login-form button:hover {
    background: #333333;
}

/* Labels */
.login-form label {
    font-size: 20px;
    font-weight: 500;
    color: #444;
}

a {
  color: inherit;
  text-decoration: none;
}

/* Header */
.header {
  padding: 20px 28px;
  border-bottom: 1px solid #e5e5e5;
  display: flex;
  align-items: center;
  gap: 36px;
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  background: rgba(255, 255, 255, 0.8);
  backdrop-filter: blur(12px);
  z-index: 100;
}

.header .logo {
  font-weight: 600;
  font-size: 16px;
  color: #1a1a1a;
  letter-spacing: -0.02em;
  display: flex;
  align-items: center;
  gap: 10px;
}

.header .logo img {
  height: 40px;
  display: block;
}

.header nav {
  display: flex;
  gap: 24px;
}

.header nav a {
  font-size: 14px;
  color: #71717a;
  transition: color 0.15s;
}

.header nav a:hover {
  color: #1a1a1a;
}

/* Layout */
.game-container {
  display: flex;
  padding-top: 65px;
  min-height: 100vh;
}

.top-right-dropdown {
    margin-left: 1100px; 
    padding: 8px 16px;
    border-radius: 6px;
    cursor: pointer;
}

.top-right-dropdown:hover .dropdown-content {
    display: block;
}

.top-right-btn {
    margin-left: auto; 
    padding: 8px 16px;
    border-radius: 6px;
    cursor: pointer;
}

/* Dropdown content */
.dropdown-content {
  display: none;
  position: absolute;
  background-color: #f9f9f9;
  min-width: 200px;
  box-shadow: 0px 8px 16px 0px rgba(0,0,0,0.2);
}

/* Links inside dropdown content */
.dropdown-content a {
  color: black;
  padding: 12px 16px;
  text-decoration: none;
  display: block;
}

/* Left Panel */
.panel-left {
  width: 120px;
  padding: 24px 16px;
  border-right: 1px solid #e5e5e5;
  display: flex;
  flex-direction: column;
  gap: 24px;
  align-items: center;
}

.panel-section {
  display: flex;
  flex-direction: column;
  gap: 12px;
  align-items: center;
  width: 100%;
}

/* Source square */
.source-square {
  width: 56px;
  height: 56px;
  background: #1a1a1a;
  border: 2px solid #333333;
  cursor: grab;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 4px 12px rgba(85, 153, 255, 0.3);
  transition: transform 0.15s, box-shadow 0.15s;
  user-select: none;
}

.source-square:hover {
  transform: scale(1.05);
  box-shadow: 0 6px 20px rgba(59, 130, 246, 0.4);
}

.source-square:active {
  cursor: grabbing;
}


/* Stats */
.stats {
  font-family: 'DM Mono', monospace;
  font-size: 12px;
  display: flex;
  flex-direction: column;
  gap: 8px;
  width: 100%;
}

.stat-row {
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.stat-label {
  color: #71717a;
}

.stat-value {
  color: #1a1a1a;
  font-weight: 500;
}

/* Board area */
.board-area {
  flex: 1;
  display: flex;
  flex-direction: column;
  position: relative;
  min-width: 0;
}

.board-wrapper {
  flex: 1;
  display: flex;
  flex-direction: column;
  position: relative;
  min-height: 0;
}

.board-zoom-container {
  flex: 1;
  min-height: 0;
  overflow: hidden;
  position: relative;
}

.board-transform {
  width: 100%;
  height: 100%;
  transform-origin: 0 0;
  will-change: transform;
  position: relative;
}

/* Board - large canvas so grid continues when zoomed out */
.board {
  width: 10000px;
  height: 10000px;
  min-width: 10000px;
  min-height: 10000px;
  background: #fafafa;
  border: 1px solid #e5e5e5;
  position: absolute;
  left: 0;
  top: 0;
  overflow: visible;
}

/* Grid pattern - repeats across entire board */
.board::before {
  content: '';
  position: absolute;
  inset: 0;
  background-image: 
    linear-gradient(#e5e5e5 1px, transparent 1px),
    linear-gradient(90deg, #e5e5e5 1px, transparent 1px);
  background-size: 56px 56px;
  background-position: -1px -1px;
  background-repeat: repeat;
}

/* Squares */
.square {
  width: 56px;
  height: 56px;
  background: #1a1a1a;
  border: 2px solid #333333;
  position: absolute;
  cursor: grab;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.15);
  transition: background-color 0.15s, border-color 0.15s, box-shadow 0.15s;
  user-select: none;
}

.square:active {
  cursor: grabbing;
  box-shadow: 0 4px 16px rgba(0, 0, 0, 0.25);
}

.square.mode-rotate {
  background: #ff0000;
  border-color: #cc0000;
  box-shadow: 0 0 0 2px #ff3333, 0 2px 8px rgba(255, 0, 0, 0.25);
}

.square.not-selected {
  background: #cccccc;
  border-color: #aaaaaa;
}

.square.selected {
  background: #1a1a1a;
  border-color: #333333;
}

.square.mode-rotate.selected {
  background: #ff0000;
  border-color: #cc0000;
}


/* Delete zone */
.delete-zone {
  position: absolute;
  bottom: 16px;
  left: 50%;
  transform: translateX(-50%);
  width: 200px;
  height: 56px;
  border: 2px dashed #d4d4d4;
  background: rgba(255, 255, 255, 0.9);
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  color: #71717a;
  font-size: 13px;
  transition: all 0.2s;
  z-index: 10;
}

.delete-zone.active {
  border-color: #ef4444;
  background: rgba(239, 68, 68, 0.1);
  color: #ef4444;
}

.delete-zone svg {
  width: 18px;
  height: 18px;
}

/* Ghost square */
.ghost-square {
  width: 56px;
  height: 56px;
  background: #1a1a1a;
  border: 2px solid #333333;
  position: fixed;
  pointer-events: none;
  opacity: 0.9;
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.3);
  z-index: 1000;
  display: none;
}

/* Bounding box */
.bounding-box {
  position: absolute;
  border: 2px dashed #333333;
  background: rgba(59, 130, 246, 0.05);
  pointer-events: none;
  z-index: 1;
  display: none;
}

/* Square data display */
.square-data {
  position: absolute;
  background: rgba(255, 255, 255, 0.98);
  border: 1px solid #e5e5e5;
  border-radius: 4px;
  padding: 8px 12px;
  font-family: 'DM Mono', monospace;
  font-size: 11px;
  z-index: 50;
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.15);
  display: none;
}

.square-data.data-error {
  border-color: #ef4444;
  box-shadow: 0 0 0 1px rgba(239, 68, 68, 0.3);
}

.square-data .data-label {
  color: #71717a;
  font-size: 9px;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  margin-bottom: 4px;
}

.square-data .data-row {
  display: flex;
  align-items: center;
  gap: 6px;
  margin-bottom: 8px;
}

.square-data .data-row:last-of-type {
  margin-bottom: 0;
}

.square-data .data-input {
  width: 52px;
  padding: 4px 6px;
  font-family: 'DM Mono', monospace;
  font-size: 11px;
  color: #1a1a1a;
  background: #fff;
  border: 1px solid #e5e5e5;
  border-radius: 3px;
  outline: none;
}

.square-data .data-input:focus {
  border-color: #1a1a1a;
  box-shadow: 0 0 0 2px rgba(85, 153, 255, 0.2);
}

.square-data.data-error .data-input {
  border-color: #ef4444;
}

.square-data .data-row label {
  color: #71717a;
  font-size: 10px;
  min-width: 12px;
}

.square-data .data-unit {
  color: #71717a;
  font-size: 11px;
}

/* For the "delete all" button */
.delete-all-btn {
  position: absolute;
  bottom: 20px;
  right: 20px;
  background: #ff4d4f;
  color: white;
  border: none;
  padding: 12px 16px;
  border-radius: 10px;
  display: flex;
  align-items: center;
  gap: 8px;
  font-family: 'DM Sans', sans-serif;
  font-weight: 500;
  cursor: pointer;
  box-shadow: 0 4px 10px rgba(0,0,0,0.2);
  transition: transform 0.15s ease, background 0.2s ease;
}

.delete-all-btn:hover {
  background: #d9363e;
  transform: scale(1.05);
}

.delete-all-btn svg {
  width: 18px;
  height: 18px;
}