:root {
  --bg-color: #1a1b1e;
  --card-width: 80px;
  --card-height: 110px;
  --card-gap: 20px;
  --card-stack-offset: 30px;
  --board-padding: 40px;
  --card-font-size: 18px;
  --text-white: #e5e5e5;
  --text-red: #ff5555;
  --border-color: #ffffff;
  --font-stack: "Menlo", "Monaco", "Courier New", monospace;
}

body {
  background-color: #000000;
  display: flex;
  justify-content: center;
  align-items: center;
  margin: 0;
  font-family: var(--font-stack);
}

/* The Terminal Window Container */
.terminal-window {
  width: 100dvw;
  height: 100dvh;
  display: flex;
  flex-direction: column;
}

/* Mac-style Title Bar */
.title-bar {
  height: 30px;
  background: #2d2d2d;
  border-top-left-radius: 10px;
  border-top-right-radius: 10px;
  display: flex;
  align-items: center;
  padding-left: 15px;
  position: relative;
}

.buttons {
  display: flex;
  gap: 8px;
}

.btn {
  width: 12px;
  height: 12px;
  border-radius: 50%;
}
.close {
  background: #ff5f56;
}
.minimize {
  background: #ffbd2e;
}
.maximize {
  background: #27c93f;
}

.title {
  position: absolute;
  left: 50%;
  transform: translateX(-50%);
  color: #ccc;
  font-size: 14px;
  font-weight: bold;
}

/* Game Area */
.game-board {
  padding: var(--board-padding);
  flex-grow: 1;
  position: relative;
  color: var(--text-white);
  user-select: none;
}

/* Top Section: Deck, Waste, Foundations */
.top-section {
  display: flex;
  justify-content: space-between;
  margin-bottom: 40px;
}

.piles-group {
  display: flex;
  gap: var(--card-gap);
}

/* Card Slots/Placeholders */
.slot {
  width: var(--card-width);
  height: var(--card-height);
  border: 1px solid #444;
  border-radius: 8px;
  position: relative;
}

/* THE CARD STYLE - mimicking ASCII */
.card {
  width: var(--card-width);
  height: var(--card-height);
  background-color: #000;
  border: 1px solid var(--border-color);
  border-radius: 8px;
  position: absolute;
  top: 0;
  left: 0;
  cursor: pointer;
  box-sizing: border-box;
  font-size: var(--card-font-size);
  transition: top 0.2s;
}

/* Card Content positioning */
.card-top {
  position: absolute;
  top: 5px;
  left: 5px;
  display: flex;
  flex-direction: row;
}

.card-bottom {
  position: absolute;
  bottom: 5px;
  right: 5px;
  transform: rotate(180deg);
  display: flex;
  flex-direction: row;
}

/* Suits Colors */
.red {
  color: var(--text-red);
  border-color: var(--text-red);
}
.black {
  color: var(--text-white);
  border-color: var(--text-white);
}

/* Specific overrides for the "ASCII" look */
.red .card-top,
.red .card-bottom {
  color: var(--text-red);
}
.black .card-top,
.black .card-bottom {
  color: var(--text-white);
}

/* Face Down Card Style - The //// Pattern */
.card.back {
  border-color: var(--text-white);
  background-image: repeating-linear-gradient(
    45deg,
    transparent,
    transparent 5px,
    #fff 5px,
    #fff 6px
  );
  background-size: 10px 10px;
}

.card.back .card-top,
.card.back .card-bottom {
  display: none;
}

/* The Tableau (Columns) */
.tableau {
  display: flex;
  justify-content: space-between;
}

.column {
  width: var(--card-width);
  min-height: 200px;
  position: relative;
}

/* Stacking logic for columns */
.column .card {
  position: absolute;
}

/* Highlight selected card */
.selected {
  box-shadow: 0 0 10px #27c93f;
  border-color: #27c93f !important;
  z-index: 999 !important;
}

/* Instructions */
.instructions {
  position: absolute;
  bottom: 10px;
  left: 20px;
  font-size: 12px;
  color: #666;
}

/* Foundation placeholder (suit symbol) */
.foundation-placeholder {
  width: 100%;
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 32px;
  color: #333;
  opacity: 0.5;
}

/* Empty column click area */
.empty-column {
  width: 100%;
  height: var(--card-height);
  border: 1px dashed #444;
  border-radius: 8px;
  cursor: pointer;
}

.empty-column:hover {
  border-color: #666;
  background-color: rgba(255, 255, 255, 0.05);
}

/* Card hover effect */
.card:hover {
  filter: brightness(1.1);
}

/* Slot hover when we have selection */
.slot:hover {
  background-color: rgba(255, 255, 255, 0.05);
}

/* Stock pile cursor */
#stock {
  cursor: pointer;
}

#stock:hover {
  background-color: rgba(255, 255, 255, 0.1);
}

/* Empty stock indicator */
#stock:empty::after {
  content: "↻";
  display: flex;
  align-items: center;
  justify-content: center;
  width: 100%;
  height: 100%;
  font-size: 24px;
  color: #444;
}

/* ============================================
   Mobile Responsive Styles
   ============================================ */

/* Tablets and smaller desktops */
@media (max-width: 1024px) {
  :root {
    --card-width: 70px;
    --card-height: 96px;
    --card-gap: 15px;
    --card-stack-offset: 25px;
    --board-padding: 25px;
    --card-font-size: 16px;
  }

  .top-section {
    margin-bottom: 30px;
  }
}

/* Large phones (landscape) and small tablets */
@media (max-width: 768px) {
  :root {
    --card-width: 55px;
    --card-height: 75px;
    --card-gap: 8px;
    --card-stack-offset: 20px;
    --board-padding: 15px;
    --card-font-size: 14px;
  }

  .top-section {
    margin-bottom: 20px;
  }

  .column {
    min-height: 150px;
  }

  .card-top {
    top: 3px;
    left: 3px;
  }

  .card-bottom {
    bottom: 3px;
    right: 3px;
  }

  .foundation-placeholder {
    font-size: 24px;
  }

  #stock:empty::after {
    font-size: 20px;
  }
}

/* Standard phones (portrait) */
@media (max-width: 480px) {
  :root {
    --card-width: calc((100vw - 50px) / 7 - 4px);
    --card-height: calc(var(--card-width) * 1.4);
    --card-gap: 4px;
    --card-stack-offset: 18px;
    --board-padding: 10px;
    --card-font-size: 11px;
  }

  .terminal-window {
    border-radius: 0;
  }

  .title-bar {
    display: none;
  }

  .game-board {
    padding: var(--board-padding);
    padding-top: 15px;
    overflow-y: auto;
    overflow-x: hidden;
  }

  .top-section {
    margin-bottom: 15px;
    flex-direction: row;
    justify-content: space-between;
    flex-wrap: nowrap;
  }

  .piles-group {
    gap: var(--card-gap);
  }

  .tableau {
    gap: var(--card-gap);
  }

  .column {
    min-height: 120px;
  }

  .card {
    border-radius: 4px;
    border-width: 1px;
  }

  .slot {
    border-radius: 4px;
  }

  .card-top {
    top: 2px;
    left: 2px;
  }

  .card-bottom {
    display: none;
  }

  .foundation-placeholder {
    font-size: 18px;
  }

  #stock:empty::after {
    font-size: 16px;
  }

  .instructions {
    display: none;
  }

  .empty-column {
    height: var(--card-height);
  }
}

/* Very small phones */
@media (max-width: 360px) {
  :root {
    --card-width: calc((100vw - 40px) / 7 - 3px);
    --card-height: calc(var(--card-width) * 1.35);
    --card-gap: 3px;
    --card-stack-offset: 15px;
    --board-padding: 8px;
    --card-font-size: 10px;
  }

  .foundation-placeholder {
    font-size: 14px;
  }
}

/* Touch device optimizations */
@media (hover: none) and (pointer: coarse) {
  .card {
    transition: transform 0.15s ease, box-shadow 0.15s ease;
  }

  .card:active {
    transform: scale(0.95);
  }

  .selected {
    transform: translateY(-5px);
    box-shadow: 0 5px 20px rgba(39, 201, 63, 0.5);
  }

  .card:hover {
    filter: none;
  }

  .slot:hover {
    background-color: transparent;
  }

  #stock:hover {
    background-color: transparent;
  }

  #stock:active {
    background-color: rgba(255, 255, 255, 0.1);
  }
}

/* Landscape on phones */
@media (max-height: 500px) and (orientation: landscape) {
  :root {
    --card-width: 50px;
    --card-height: 68px;
    --card-stack-offset: 15px;
    --board-padding: 10px;
    --card-font-size: 12px;
  }

  .top-section {
    margin-bottom: 10px;
  }

  .column {
    min-height: 100px;
  }
}