/* === Windows 3.1 Style === */
*, *::before, *::after {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

:root {
  --win-bg: #008080;
  --win-gray: #c0c0c0;
  --win-dark: #808080;
  --win-light: #ffffff;
  --win-shadow: #404040;
  --win-title: #000080;
  --win-title-text: #ffffff;
  --win-body-bg: #ffffff;
  --win-text: #000000;
  --win-link: #000080;
  --font-system: 'DotGothic16', 'Noto Sans KR', 'MS Sans Serif', 'Arial', sans-serif;
  --font-kr: 'Noto Sans KR', sans-serif;
}

html {
  font-size: 14px;
}

body {
  font-family: var(--font-system);
  background: var(--win-bg);
  color: var(--win-text);
  overflow: hidden;
  height: 100vh;
  user-select: none;
  cursor: default;
}

a {
  color: var(--win-link);
  text-decoration: underline;
}

a:hover {
  color: #0000ff;
}

/* === Bevel Mixin (outset / inset) === */
.bevel-out {
  border-top: 2px solid var(--win-light);
  border-left: 2px solid var(--win-light);
  border-bottom: 2px solid var(--win-shadow);
  border-right: 2px solid var(--win-shadow);
}

.bevel-in {
  border-top: 2px solid var(--win-shadow);
  border-left: 2px solid var(--win-shadow);
  border-bottom: 2px solid var(--win-light);
  border-right: 2px solid var(--win-light);
}

/* === Floating Desktop Logo === */
.desktop-bg-logo {
  position: absolute;
  z-index: 0;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 4px;
  font-family: var(--font-system);
  font-weight: bold;
  white-space: nowrap;
  opacity: 0.25;
  pointer-events: none;
  animation: float-around 24s linear infinite;
}

.ss-owl {
  font-size: clamp(2rem, 5vw, 3.5rem);
  color: #c4a35a;
}

.ss-amp {
  font-size: clamp(1.4rem, 3vw, 2rem);
  color: #aaa;
  margin: 0 6px;
}

.ss-otter {
  font-size: clamp(2rem, 5vw, 3.5rem);
  color: #5a9ec4;
}

.ss-sub {
  display: block;
  font-size: clamp(0.6rem, 1.5vw, 0.85rem);
  color: #9cc;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  font-weight: normal;
  text-align: center;
}

@keyframes float-around {
  0%   { top: 20%; left: 15%; }
  10%  { top: 8%;  left: 55%; }
  20%  { top: 30%; left: 75%; }
  30%  { top: 55%; left: 65%; }
  40%  { top: 65%; left: 35%; }
  50%  { top: 50%; left: 10%; }
  60%  { top: 25%; left: 5%;  }
  70%  { top: 10%; left: 40%; }
  80%  { top: 40%; left: 60%; }
  90%  { top: 60%; left: 20%; }
  100% { top: 20%; left: 15%; }
}

/* === Desktop === */
.desktop {
  width: 100vw;
  height: 100vh;
  background: var(--win-bg);
  position: relative;
  overflow: hidden;
}

/* === Desktop Icons === */
.desktop-icons {
  position: absolute;
  top: 16px;
  left: 16px;
  display: flex;
  flex-direction: column;
  gap: 24px;
  z-index: 1;
}

.desktop-icon {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 4px;
  background: none;
  border: 1px solid transparent;
  padding: 4px 8px;
  cursor: pointer;
  color: #fff;
  font-family: var(--font-system);
  font-size: 0.78rem;
  text-shadow: 1px 1px 1px #000;
  width: 80px;
  text-align: center;
}

.desktop-icon:hover,
.desktop-icon:focus {
  background: rgba(0, 0, 128, 0.3);
  border: 1px dotted #fff;
  outline: none;
}

.desktop-icon .icon-img {
  width: 32px;
  height: 32px;
}

/* === Desktop Footer === */
.desktop-footer {
  position: absolute;
  bottom: 34px;
  left: 0;
  right: 0;
  padding: 3px 8px;
  background: rgba(0, 0, 0, 0.3);
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 0.68rem;
  color: rgba(255, 255, 255, 0.6);
  font-family: var(--font-system);
  z-index: 2;
}

.desktop-footer span:last-child {
  flex-shrink: 0;
}

/* === Taskbar === */
.taskbar {
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  height: 32px;
  background: var(--win-gray);
  border-top: 2px solid var(--win-light);
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 2px 4px;
  z-index: 999;
}

.start-btn {
  height: 26px;
  padding: 0 12px;
  font-family: var(--font-system);
  font-size: 0.85rem;
  font-weight: bold;
  background: var(--win-gray);
  border-top: 2px solid var(--win-light);
  border-left: 2px solid var(--win-light);
  border-bottom: 2px solid var(--win-shadow);
  border-right: 2px solid var(--win-shadow);
  cursor: pointer;
  display: flex;
  align-items: center;
  gap: 4px;
}

.start-btn:active {
  border-top: 2px solid var(--win-shadow);
  border-left: 2px solid var(--win-shadow);
  border-bottom: 2px solid var(--win-light);
  border-right: 2px solid var(--win-light);
}

.start-icon {
  display: inline-block;
  width: 16px;
  height: 16px;
  background: linear-gradient(135deg, #ff0000 25%, #00ff00 25%, #00ff00 50%, #0000ff 50%, #0000ff 75%, #ffff00 75%);
}

.taskbar-tray {
  display: flex;
  align-items: center;
  padding: 0 8px;
  height: 24px;
  border-top: 2px solid var(--win-shadow);
  border-left: 2px solid var(--win-shadow);
  border-bottom: 2px solid var(--win-light);
  border-right: 2px solid var(--win-light);
  font-size: 0.78rem;
}

/* === Start Menu === */
.start-menu {
  display: none;
  position: absolute;
  bottom: 32px;
  left: 4px;
  width: 200px;
  background: var(--win-gray);
  border-top: 2px solid var(--win-light);
  border-left: 2px solid var(--win-light);
  border-bottom: 2px solid var(--win-shadow);
  border-right: 2px solid var(--win-shadow);
  z-index: 1000;
}

.start-menu.open {
  display: flex;
}

.start-menu-sidebar {
  width: 28px;
  background: var(--win-title);
  color: var(--win-title-text);
  writing-mode: vertical-rl;
  text-orientation: mixed;
  transform: rotate(180deg);
  display: flex;
  align-items: center;
  justify-content: flex-end;
  padding: 8px 4px;
  font-weight: bold;
  font-size: 0.9rem;
  letter-spacing: 0.1em;
}

.start-menu-list {
  flex: 1;
  list-style: none;
  padding: 4px 0;
}

.start-menu-list li a {
  display: block;
  padding: 4px 12px;
  color: var(--win-text);
  text-decoration: none;
  font-size: 0.85rem;
}

.start-menu-list li a:hover {
  background: var(--win-title);
  color: var(--win-title-text);
}

.start-menu-list .divider {
  height: 1px;
  margin: 4px 8px;
  border-top: 1px solid var(--win-dark);
  border-bottom: 1px solid var(--win-light);
}

/* === Windows === */
.win-window {
  position: absolute;
  background: var(--win-gray);
  border-top: 2px solid var(--win-light);
  border-left: 2px solid var(--win-light);
  border-bottom: 2px solid var(--win-shadow);
  border-right: 2px solid var(--win-shadow);
  min-width: 320px;
  max-width: 560px;
  width: 90vw;
  max-height: calc(100vh - 80px);
  z-index: 10;
  display: flex;
  flex-direction: column;
  box-shadow: 2px 2px 0 rgba(0,0,0,0.3);
}

#about-window {
  top: 40px;
  left: 120px;
}

#games-window {
  top: 60px;
  left: 140px;
  max-width: 360px;
}

#contact-window {
  top: 80px;
  left: 160px;
}

#mine-window {
  top: 80px;
  left: 180px;
}

.win-titlebar {
  background: var(--win-title);
  color: var(--win-title-text);
  padding: 2px 4px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  cursor: move;
  flex-shrink: 0;
}

.win-titlebar-text {
  font-size: 0.82rem;
  font-weight: bold;
  padding-left: 2px;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.win-titlebar-buttons {
  display: flex;
  gap: 2px;
  flex-shrink: 0;
}

.win-titlebar-buttons button {
  width: 18px;
  height: 16px;
  background: var(--win-gray);
  border-top: 1px solid var(--win-light);
  border-left: 1px solid var(--win-light);
  border-bottom: 1px solid var(--win-shadow);
  border-right: 1px solid var(--win-shadow);
  cursor: pointer;
  position: relative;
  font-size: 0;
}

.win-titlebar-buttons button:active {
  border-top: 1px solid var(--win-shadow);
  border-left: 1px solid var(--win-shadow);
  border-bottom: 1px solid var(--win-light);
  border-right: 1px solid var(--win-light);
}

.win-btn-minimize::after {
  content: '';
  position: absolute;
  bottom: 2px;
  left: 3px;
  width: 8px;
  height: 2px;
  background: #000;
}

.win-btn-maximize::after {
  content: '';
  position: absolute;
  top: 2px;
  left: 2px;
  width: 10px;
  height: 9px;
  border: 1px solid #000;
  border-top-width: 2px;
}

.win-btn-close::after {
  content: 'X';
  font-size: 10px;
  font-weight: bold;
  color: #000;
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
}

/* Active vs inactive window */
.win-window.inactive .win-titlebar {
  background: var(--win-dark);
}

.win-menubar {
  display: flex;
  gap: 0;
  padding: 2px 0;
  border-bottom: 1px solid var(--win-dark);
  flex-shrink: 0;
}

.win-menubar span {
  padding: 1px 8px;
  font-size: 0.78rem;
  cursor: default;
}

.win-menubar span:hover {
  background: var(--win-title);
  color: var(--win-title-text);
}

.win-body {
  background: var(--win-body-bg);
  margin: 2px;
  padding: 12px;
  overflow-y: auto;
  flex: 1;
  border-top: 1px solid var(--win-shadow);
  border-left: 1px solid var(--win-shadow);
  border-bottom: 1px solid var(--win-light);
  border-right: 1px solid var(--win-light);
  font-family: var(--font-kr);
}

/* === Win UI Components === */
.win-section {
  margin-bottom: 16px;
}

.win-logo-area {
  text-align: center;
  padding: 16px 0;
  border-bottom: 1px solid var(--win-gray);
  margin-bottom: 16px;
}

.win-logo-box {
  font-family: var(--font-system);
  font-size: 2rem;
  font-weight: bold;
  letter-spacing: -0.02em;
}

.win-logo-owl { color: #8B6914; }
.win-logo-amp { color: var(--win-dark); margin: 0 4px; }
.win-logo-otter { color: #006080; }

.win-logo-sub {
  font-size: 0.78rem;
  color: var(--win-dark);
  margin-top: 4px;
  letter-spacing: 0.15em;
  text-transform: uppercase;
}

.win-group {
  margin-bottom: 16px;
  border: 1px solid var(--win-dark);
  border-radius: 0;
  position: relative;
  padding: 16px 12px 12px;
}

.win-group-label {
  position: absolute;
  top: -8px;
  left: 8px;
  background: var(--win-body-bg);
  padding: 0 4px;
  font-size: 0.78rem;
  font-weight: bold;
  color: var(--win-text);
}

.win-group-content {
  font-size: 0.85rem;
  line-height: 1.7;
}

.win-group-content p {
  font-family: var(--font-kr);
}

.win-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.82rem;
}

.win-table td {
  padding: 3px 8px 3px 0;
  vertical-align: top;
  font-family: var(--font-kr);
}

.win-label {
  color: var(--win-dark);
  white-space: nowrap;
  width: 110px;
  font-weight: bold;
}

.win-hint {
  font-size: 0.75rem;
  color: var(--win-dark);
  margin-top: 2px;
}

.win-legal {
  font-size: 0.78rem;
  color: var(--win-dark);
}

.win-legal p {
  line-height: 1.6;
}

.win-statusbar {
  margin-top: 12px;
  padding: 2px 4px;
  background: var(--win-gray);
  border-top: 1px solid var(--win-shadow);
  border-left: 1px solid var(--win-shadow);
  border-bottom: 1px solid var(--win-light);
  border-right: 1px solid var(--win-light);
  font-size: 0.72rem;
  color: var(--win-text);
  display: flex;
  justify-content: space-between;
}

/* === Dialog style (Games window) === */
.win-dialog-content {
  display: flex;
  gap: 16px;
  align-items: flex-start;
  padding: 16px 12px;
}

.win-dialog-icon {
  flex-shrink: 0;
}

.win-dialog-text {
  font-size: 0.85rem;
  line-height: 1.7;
  font-family: var(--font-kr);
}

.win-dialog-buttons {
  display: flex;
  justify-content: center;
  padding: 0 12px 12px;
}

.win-button {
  padding: 4px 24px;
  font-family: var(--font-system);
  font-size: 0.82rem;
  background: var(--win-gray);
  border-top: 2px solid var(--win-light);
  border-left: 2px solid var(--win-light);
  border-bottom: 2px solid var(--win-shadow);
  border-right: 2px solid var(--win-shadow);
  cursor: pointer;
}

.win-button:active {
  border-top: 2px solid var(--win-shadow);
  border-left: 2px solid var(--win-shadow);
  border-bottom: 2px solid var(--win-light);
  border-right: 2px solid var(--win-light);
}

.win-button:focus {
  outline: 1px dotted #000;
  outline-offset: -4px;
}

/* === Minesweeper === */
#mine-window {
  max-width: none;
  width: auto;
  min-width: auto;
}

.mine-body {
  padding: 6px;
  background: var(--win-gray);
  border-top: 2px solid var(--win-shadow);
  border-left: 2px solid var(--win-shadow);
  border-bottom: 2px solid var(--win-light);
  border-right: 2px solid var(--win-light);
}

.mine-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 4px 6px;
  margin-bottom: 6px;
  border-top: 2px solid var(--win-shadow);
  border-left: 2px solid var(--win-shadow);
  border-bottom: 2px solid var(--win-light);
  border-right: 2px solid var(--win-light);
  background: var(--win-gray);
}

.mine-counter {
  background: #000;
  color: #f00;
  font-family: 'Courier New', monospace;
  font-size: 1.4rem;
  font-weight: bold;
  padding: 2px 4px;
  min-width: 46px;
  text-align: center;
  letter-spacing: 2px;
  border-top: 1px solid var(--win-shadow);
  border-left: 1px solid var(--win-shadow);
  border-bottom: 1px solid var(--win-light);
  border-right: 1px solid var(--win-light);
}

.mine-face {
  width: 30px;
  height: 30px;
  font-size: 1.1rem;
  line-height: 1;
  background: var(--win-gray);
  border-top: 2px solid var(--win-light);
  border-left: 2px solid var(--win-light);
  border-bottom: 2px solid var(--win-shadow);
  border-right: 2px solid var(--win-shadow);
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 0;
}

.mine-face:active {
  border-top: 2px solid var(--win-shadow);
  border-left: 2px solid var(--win-shadow);
  border-bottom: 2px solid var(--win-light);
  border-right: 2px solid var(--win-light);
}

.mine-board {
  display: inline-grid;
  border-top: 3px solid var(--win-shadow);
  border-left: 3px solid var(--win-shadow);
  border-bottom: 3px solid var(--win-light);
  border-right: 3px solid var(--win-light);
  background: var(--win-gray);
}

.mine-cell {
  width: 24px;
  height: 24px;
  border: 0;
  padding: 0;
  font-family: 'DotGothic16', monospace;
  font-size: 0.82rem;
  font-weight: bold;
  text-align: center;
  line-height: 24px;
  cursor: pointer;
  background: var(--win-gray);
  /* raised by default */
  border-top: 2px solid var(--win-light);
  border-left: 2px solid var(--win-light);
  border-bottom: 2px solid var(--win-shadow);
  border-right: 2px solid var(--win-shadow);
  color: transparent;
  user-select: none;
}

.mine-cell:active:not(.revealed):not(.flagged) {
  border: 1px solid var(--win-dark);
  background: var(--win-gray);
}

.mine-cell.revealed {
  border: 1px solid var(--win-dark);
  cursor: default;
}

.mine-cell.flagged {
  color: #000;
}

.mine-cell.revealed.mine-0 { color: transparent; }
.mine-cell.revealed.mine-1 { color: #0000ff; }
.mine-cell.revealed.mine-2 { color: #008000; }
.mine-cell.revealed.mine-3 { color: #ff0000; }
.mine-cell.revealed.mine-4 { color: #000080; }
.mine-cell.revealed.mine-5 { color: #800000; }
.mine-cell.revealed.mine-6 { color: #008080; }
.mine-cell.revealed.mine-7 { color: #000000; }
.mine-cell.revealed.mine-8 { color: #808080; }

.mine-cell.mine-bomb {
  background: #ff0000;
  color: #000;
}

.mine-cell.mine-revealed-bomb {
  color: #000;
}

.mine-cell.mine-wrong {
  color: #000;
  text-decoration: line-through;
  text-decoration-color: #ff0000;
}

/* === Mobile Responsive === */
@media (max-width: 640px) {
  .desktop-icons {
    top: 10px;
    left: 10px;
    gap: 16px;
  }

  .desktop-icon {
    font-size: 0.7rem;
    width: 64px;
  }

  .desktop-icon .icon-img {
    width: 28px;
    height: 28px;
  }

  .desktop-icon .icon-img svg {
    width: 28px;
    height: 28px;
  }

  .win-window {
    left: 4px !important;
    right: 4px;
    top: 10px !important;
    width: calc(100vw - 8px) !important;
    max-width: none;
    min-width: auto;
    max-height: calc(100vh - 52px);
  }

  .win-logo-box {
    font-size: 1.5rem;
  }

  .win-label {
    width: 80px;
  }

  #mine-window {
    width: auto !important;
    left: auto !important;
    right: auto;
    max-width: calc(100vw - 8px);
    overflow-x: auto;
  }

  .mine-cell {
    width: 20px;
    height: 20px;
    font-size: 0.7rem;
    line-height: 20px;
  }

  .mine-counter {
    font-size: 1.1rem;
    min-width: 38px;
  }
}