/* =================================================
   Color system (trimmed but compatible)
   ================================================= */
:root {
  --navbar-bg-color: #333;
  --text-color: #ffffff;
  --page-bg-color: #fdfcfb;

  --card-bg-color: rgba(255, 255, 255, 0.65);
  --border-color-light: #dddddd;

  --shadow-light: 0 4px 12px rgba(0,0,0,0.15);
}

/* Dark mode body */
[data-theme="dark"] {
  --page-bg-color: #111;
  --text-color: #eee;
  --card-bg-color: rgba(30, 30, 40, 0.7);
  --border-color-light: rgba(255, 255, 255, 0.1);
}

/* Navbar dark adjustments */
[data-theme="dark"] .navbar {
  background: rgba(20, 20, 20, 0.85);
  border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

/* Mini cards in dark mode */
[data-theme="dark"] .mini-card {
  background: var(--card-bg-color);
  border: 1px solid var(--border-color-light);
  color: var(--text-color);
}

/* Footer in dark mode */
[data-theme="dark"] .footer {
  background: rgba(20, 20, 20, 0.9);
  color: var(--text-color);
}

/* =================================================
   Base
   ================================================= */
*,
*::before,
*::after {
  box-sizing: border-box;
}

body {
  margin: 0;
  min-height: 100vh;
  min-width: 430px;
  display: flex;
  flex-direction: column;

  background: var(--page-bg-color);
  color: #000;
  font-family: system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;

  overflow-x: hidden;
}


/* =================================================
   Navbar
   ================================================= */
.navbar {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  box-sizing: border-box; /* include padding in width */

  display: flex;
  align-items: center;
  justify-content: space-between; /* left: title, right: toggle */
  padding: 0 20px;

  height: 60px;

  background: rgba(20, 20, 20, 0.85);
  backdrop-filter: blur(6px);
  -webkit-backdrop-filter: blur(6px);

  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
  color: var(--text-color);
  z-index: 100;
}


.nav-title {
  font-size: 25px;
  font-weight: 600;
  text-shadow: 0 1px 6px rgba(0, 0, 0, 0.35);
  font-family: 'Courier New', Courier, monospace;
}

/* =================================================
   Content layout
   ================================================= */
.content {
  flex: 1; /* THIS is the key line */
  max-width: 800px;
  margin: 120px auto 60px;
  padding: 0 5px;
  position: relative;
  z-index: 1;
}

.hero {
  margin-bottom: 60px;
}

/* Custom font */
@font-face {
    font-family: 'PermanentMarker';
    src: url('DSEG7Modern-Regular.woff2') format('woff2');
    font-weight: normal;
    font-style: normal;
}

/* Slightly smaller hero title */
.hero-title {
    font-family: 'PermanentMarker', cursive;
    font-size: clamp(1.75rem, 3.5vw, 2.5rem); /* slightly smaller */
    margin: 0 0 12px;
    color: green;
}

.hero-text {
  max-width: 600px;
  font-size: 20px;
  line-height: 1.5;
  max-width: fit-content;
  font-family: 'Georgia';
}

[data-theme="dark"] .hero-title {
  color: greenyellow;
}

[data-theme="dark"] .hero-text {
  color: rgba(255, 255, 255, 0.9);
  opacity: 1;
}


/* =================================================
   Cards section
   ================================================= */
.section-title {
  font-size: 1.6rem;
  margin-bottom: 30px;
  margin-top: 30px;
}

.card-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 20px;
}

.mini-card {
  padding: 20px;
  border-radius: 14px;
  background: var(--card-bg-color);
  border: 1px solid var(--border-color-light);
  backdrop-filter: blur(14px);
  box-shadow: var(--shadow-light);
  font-weight: 600;
  transition: transform 0.15s ease, box-shadow 0.15s ease;
  cursor: pointer;
}

a {
    text-decoration: none;
}

.mini-card:hover {
  transform: translateY(2px);
  box-shadow: 0 6px 16px rgba(0,0,0,0.18);
}

.card-header {
  display: flex;
  align-items: center;
  gap: 14px;
}

/* Card text container */
.card-text h3 {
  margin: 0 0 8px;
  font-size: 1.05rem; /* slightly bigger */
  font-weight: 600;
  line-height: 1.25;

  color: #000; /* light mode: black */
}

.card-text p {
  margin: 0;
  font-size: 1rem; /* slightly bigger */
  font-weight: 400;
  line-height: 1.5;

  color: rgba(0, 0, 0, 0.65);
}

[data-theme="dark"] .card-text h3 {
  color: #ffffff; /* dark mode: white title */
}

[data-theme="dark"] .card-text p {
  color: rgba(255, 255, 255, 0.7);
}

[data-theme="dark"] .section-title {
  color: #ffffff;
  opacity: 0.95;
}

/* Bigger mobile-app style icon */
.app-icon {
  width: 56px !important;
  height: 56px;
  border-radius: 16px;

  display: flex;
  align-items: center;
  justify-content: center;
  padding-top: 7px;

  font-size: 1.7rem;

  background: linear-gradient(
    180deg,
    rgba(255, 255, 255, 0.75),
    rgba(255, 255, 255, 0.55)
  );

  box-shadow:
    0 8px 20px rgba(0, 0, 0, 0.22),
    inset 0 1px 0 rgba(255, 255, 255, 0.6);

  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);

  flex-shrink: 0;
}

/* Dark mode */
[data-theme="dark"] .app-icon {
  background: linear-gradient(
    180deg,
    rgba(40, 40, 55, 0.9),
    rgba(30, 30, 45, 0.8)
  );

  box-shadow:
    0 8px 22px rgba(0, 0, 0, 0.55),
    inset 0 1px 0 rgba(255, 255, 255, 0.08);
}

/* =================================================
   Footer
   ================================================= */
.footer {
  width: 100%;
  background: rgba(20, 20, 20, 0.9);
  color: var(--text-color);
  padding-bottom: 6px;
  padding-top: 6px;
  font-size: 12px;

  display: flex;
  justify-content: center;

  backdrop-filter: blur(6px);
  -webkit-backdrop-filter: blur(6px);
}

.footer-content {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 6px;
}

.footer-images {
  display: flex;
  flex-wrap: wrap;       /* allow wrapping on smaller screens */
  gap: 8px;
  align-items: center;
  justify-content: center; /* optional: center them */
}

.footer-images img {
  height: 31px;
  width: auto;
  object-fit: contain;
  border-radius: 6px;
  border: 1px solid rgba(255,255,255,0.2);
  flex-shrink: 0;        /* prevent shrinking too much */
  max-width: 100%;       /* ensure they never overflow their row */
}


/* =================================================
   Blue blob background
   ================================================= */
#blueBlobBg {
  position: fixed;
  inset: 0;
  z-index: -2;
  pointer-events: none;

  background:
    radial-gradient(
      circle at 20% 30%,
      rgba(0, 120, 255, 0.35) 0%,
      rgba(0, 120, 255, 0.18) 25%,
      rgba(0, 120, 255, 0.05) 45%,
      transparent 65%
    ),
    radial-gradient(
      circle at 80% 60%,
      rgba(0, 200, 255, 0.30) 0%,
      rgba(0, 200, 255, 0.15) 30%,
      rgba(0, 200, 255, 0.04) 50%,
      transparent 70%
    );

  filter: blur(40px);
}

/* =================================================
   Ambient glow layer
   ================================================= */
#ambientLight {
  position: fixed;
  inset: 0;
  z-index: -3;
  pointer-events: none;

  background:
    radial-gradient(
      circle at center,
      rgba(0, 140, 255, 0.12) 0%,
      rgba(0, 140, 255, 0.05) 30%,
      rgba(0, 140, 255, 0.00) 60%
    );
}

.theme-toggle {
  margin-left: 20px;
  background: none;
  border: none;
  cursor: pointer;
  font-size: 1.2rem;
  position: relative;
  width: 36px;
  height: 36px;
  flex-shrink: 0; /* don't let it shrink */
  margin: 0; /* remove extra left margin */
  display: flex;
  align-items: center;
  justify-content: center;
  transition: transform 0.3s ease;
}

.theme-toggle .icon-sun,
.theme-toggle .icon-moon {
  position: absolute;
  transition: transform 0.5s ease, opacity 0.5s ease;
  display: flex;
  justify-content: center;
  align-items: center;
}

/* Default: light mode visible */
[data-theme="light"] .icon-sun {
  opacity: 1;
  transform: rotate(0deg) scale(1);
}

[data-theme="light"] .icon-moon {
  opacity: 0;
  transform: rotate(-90deg) scale(0);
}

/* Dark mode visible */
[data-theme="dark"] .icon-sun {
  opacity: 0;
  transform: rotate(90deg) scale(0);
}

[data-theme="dark"] .icon-moon {
  opacity: 1;
  transform: rotate(0deg) scale(1);
}

.icon-img {
    width: 40px;
}

.footer-image-wrapper {
  position: fixed;
  left: 0;
  bottom: 0;

  width: 100%;
  aspect-ratio: 5212 / 1006;

  background: url("background.png") center bottom / cover no-repeat;

  /* Gradient mask: top is transparent, bottom is opaque */
  -webkit-mask-image: linear-gradient(to bottom, rgba(0,0,0,0), rgba(0,0,0,1));
  -webkit-mask-repeat: no-repeat;
  -webkit-mask-size: cover;

  mask-image: linear-gradient(to bottom, rgba(0,0,0,0), rgba(0,0,0,1));
  mask-repeat: no-repeat;
  mask-size: cover;

  pointer-events: none;
  z-index: 0;
}

/* Fun stuff grid */
.fun-section .fun-grid {
  display: flex;
  flex-wrap: wrap;
  gap: 20px;
  justify-content: flex-start;
  align-items: flex-start; /* ✅ THIS MATTERS */
  align-items: center;
  justify-content: center;
  min-height: 730px;
}

@media (max-width: 725px) {
  .fun-section .fun-grid {
    flex-direction: column;
    align-items: center;
  }
}

/* Windows 95 style window */
.ttt-window {
  display: flex;               /* keep flex to allow proper layout */
  flex-direction: column;      /* titlebar on top, grid below */
  height: fit-content;
  background: #c0c0c0;
  border: 2px solid #fff;
  box-shadow: 2px 2px #808080, -2px -2px #fff;
  padding: 0;
}

.ttt-titlebar {
  flex: 0 0 auto;             /* never stretch */
  width: 100%;                 /* fill the window width */
  display: flex;
  align-items: center;
  background: #000080;
  color: white;
  font-family: 'Arial', sans-serif;
  font-size: 0.85rem;
  padding: 2px 6px;
  box-shadow: inset -1px -1px #000, inset 1px 1px #fff;
  user-select: none;
}


.ttt-title {
  font-weight: bold;
}

.ttt-controls button {
  background: #c0c0c0;
  border: 2px solid #fff;
  width: 18px;
  height: 16px;
  padding: 0;
  margin-left: 2px;
  font-weight: bold;
  font-family: 'Arial', sans-serif;
  cursor: pointer;
  box-shadow: 2px 2px #808080, -2px -2px #fff;
}

.ttt-controls button:active {
  box-shadow: inset 2px 2px #808080, inset -2px -2px #fff;
}

/* Tic-Tac-Toe grid */
.tic-tac-toe {
  display: grid;
  grid-template-columns: repeat(3, 60px);
  grid-template-rows: repeat(3, 60px);
  gap: 2px;
  padding: 4px;
  background: #c0c0c0;
  border-top: 2px solid #fff;
  border-left: 2px solid #fff;
  border-bottom: 2px solid #808080;
  border-right: 2px solid #808080;
}

/* Tic-Tac-Toe cells */
.ttt-cell {
  width: 60px;
  height: 60px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: #e0e0e0;
  border: 2px solid #808080;
  font-weight: bold;
  font-family: 'Courier New', monospace;
  font-size: 2rem;
  cursor: pointer;
  user-select: none;
  line-height: 1; /* prevent resizing */
}

.ttt-cell:hover {
  background: #d0d0d0;
}

/* Status bar */
.ttt-status {
  font-family: 'Arial', sans-serif;
  font-size: 0.8rem;
  background: #c0c0c0;
  padding: 4px 6px;
  border-top: 2px solid #fff;
  border-left: 2px solid #fff;
  border-bottom: 2px solid #808080;
  border-right: 2px solid #808080;
  color: #000080;
  min-height: 20px;
  text-align: center;
}

/* Outer Window: 16:9 */
.img-viewer-window {
  width: 420px;          /* default width */
  max-width: 100%;       /* never exceed the column width */
  aspect-ratio: 16 / 9;
  background: #c0c0c0;
  border: 2px solid #fff;
  box-shadow: 2px 2px #808080, -2px -2px #fff;
  display: flex;
  flex-direction: column;
  padding: 0;
  resize: both;          /* user can resize freely */
  overflow: hidden;
  min-width: 240px;      /* prevent shrinking too small */
  min-height: 135px;
}

/* Title bar */
.img-titlebar {
  background: #000080;
  color: white;
  font-family: 'Arial', sans-serif;
  font-size: 0.9rem;
  padding: 3px 6px;
  box-shadow: inset -1px -1px #000, inset 1px 1px #fff;
  user-select: none;
}

/* Inner image window */
.img-display-window {
  flex: 1;
  background: #e0e0e0;
  border-top: 2px solid #fff;
  border-left: 2px solid #fff;
  border-bottom: 2px solid #808080;
  border-right: 2px solid #808080;
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
}

.img-display-window img {
  max-width: 100%;
  max-height: 100%;
  object-fit: contain;
  display: none; /* hide by default */
}

/* show the first image */
.img-display-window img:first-child {
  display: block;
}

/* Controls */
.img-controls {
  display: flex;
  justify-content: center;
  gap: 10px;
  padding: 4px;
  background: #c0c0c0;
  border-top: 2px solid #fff;
  border-left: 2px solid #fff;
  border-bottom: 2px solid #808080;
  border-right: 2px solid #808080;
}

.img-btn {
  background: #e0e0e0;
  border: 2px solid #808080;
  padding: 4px 8px;
  font-family: 'Arial', sans-serif;
  font-size: 0.85rem;
  cursor: pointer;
  box-shadow: 2px 2px #808080, -2px -2px #fff;
}

.img-btn:active {
  box-shadow: inset 2px 2px #808080, inset -2px -2px #fff;
}

.random-browser-window {
  display: flex;
  flex-direction: column;
  height: fit-content;
  width: 180px;

  background: #c0c0c0;
  border: 2px solid #fff;
  box-shadow: 2px 2px #808080, -2px -2px #fff;
  padding: 0;
}

.browser-titlebar {
  flex: 0 0 auto;
  width: 100%;
  display: flex;
  align-items: center;
  background: #000080;
  color: white;
  font-family: 'Arial', sans-serif;
  font-size: 0.85rem;
  padding: 2px 6px;
  box-shadow: inset -1px -1px #000, inset 1px 1px #fff;
  user-select: none;
}

.browser-title {
  font-weight: bold;
}

.browser-display {
  flex: 1;
  display: flex;
  align-items: center;
  justify-content: center;
  background: #e0e0e0;
  border-top: 2px solid #fff;
  border-left: 2px solid #fff;
  border-bottom: 2px solid #808080;
  border-right: 2px solid #808080;
  padding: 10px;
}

.browser-icon {
  width: 60px;
  height: 60px;
}

.browser-controls {
  display: flex;
  justify-content: center;
  padding: 4px;
  background: #c0c0c0;
  border-top: 2px solid #fff;
  border-left: 2px solid #fff;
  border-bottom: 2px solid #808080;
  border-right: 2px solid #808080;
}

.browser-btn {
  background: #e0e0e0;
  border: 2px solid #808080;
  padding: 4px 8px;
  font-family: 'Arial', sans-serif;
  font-size: 0.85rem;
  cursor: pointer;
  box-shadow: 2px 2px #808080, -2px -2px #fff;
}

.browser-btn:active {
  box-shadow: inset 2px 2px #808080, inset -2px -2px #fff;
}

/* Joke Window - bigger than other fun windows */
/* Joke Window - same size as Image Viewer, non-resizable */
.joke-window {
  display: flex;
  flex-direction: column;

  width: 420px;          /* same as image viewer */
  max-width: 100%;
  aspect-ratio: 16 / 9;  /* same proportions */

  background: #c0c0c0;
  border: 2px solid #fff;
  box-shadow: 2px 2px #808080, -2px -2px #fff;
  padding: 0;

  overflow: hidden;     /* prevent resize handles / overflow */
}

.joke-titlebar {
  flex: 0 0 auto;
  width: 100%;
  display: flex;
  align-items: center;
  background: #000080;
  color: white;
  font-family: 'Arial', sans-serif;
  font-size: 0.9rem;
  padding: 3px 6px;
  box-shadow: inset -1px -1px #000, inset 1px 1px #fff;
  user-select: none;
}

.joke-title {
  font-weight: bold;
}

.joke-display {
  flex: 1;
  min-height: 120px;
  background: #e0e0e0;
  border-top: 2px solid #fff;
  border-left: 2px solid #fff;
  border-bottom: 2px solid #808080;
  border-right: 2px solid #808080;
  font-family: 'Arial', sans-serif;
  font-size: 0.9rem;
  overflow-y: auto;
}

.joke-controls {
  display: flex;
  justify-content: center;
  padding: 4px;
  background: #c0c0c0;
  border-top: 2px solid #fff;
  border-left: 2px solid #fff;
  border-bottom: 2px solid #808080;
  border-right: 2px solid #808080;
}

#joke-btn {
  background: #e0e0e0;
  border: 2px solid #808080;
  padding: 4px 8px;
  font-family: 'Arial', sans-serif;
  font-size: 0.85rem;
  cursor: pointer;
  box-shadow: 2px 2px #808080, -2px -2px #fff;
}

#joke-btn:active {
  box-shadow: inset 2px 2px #808080, inset -2px -2px #fff;
}

/* =================================================
   PEXESO (MEMORY GAME) – FINAL, STABLE VERSION
   ================================================= */

/* Outer window */
.pexeso-window {
  width: 100%;
  max-width: 700px;
  background: #c0c0c0;
  border: 2px solid #fff;
  box-shadow: 2px 2px #808080, -2px -2px #fff;
  display: flex;
  flex-direction: column;
  overflow: hidden;
  font-family: 'Arial', sans-serif;
}

/* Title bar */
.pexeso-titlebar {
  background: #000080;
  color: #fff;
  font-weight: bold;
  font-size: 0.9rem;
  padding: 4px 6px;
  box-shadow: inset -1px -1px #000, inset 1px 1px #fff;
  user-select: none;
}

/* Grid */
.pexeso-grid {
  display: grid;
  gap: 6px;
  padding: 6px;
  background: #c0c0c0;
  grid-template-columns: repeat(auto-fit, minmax(54px, 1fr));
}

/* Card wrapper */
.pexeso-card {
  width: 100%;
  height: 60px;
  perspective: 800px;
  cursor: pointer;
}

/* Flip container */
.pexeso-card-inner {
  width: 100%;
  height: 100%;
  position: relative;
  transform-style: preserve-3d;
  transition: transform 0.45s ease;
}

/* Flip state */
.pexeso-card.flipped .pexeso-card-inner {
  transform: rotateY(180deg);
}

/* Front & Back shared */
.card-front,
.card-back {
  position: absolute;
  inset: 0;
  border: 2px solid #fff;
  box-shadow: inset -1px -1px #000, inset 1px 1px #fff;
  backface-visibility: hidden;
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
}

/* Front (face down) */
.card-front {
  background: #808080;
}

/* Back (image side) */
.card-back {
  background: #e0e0e0;
  transform: rotateY(180deg);
  padding: 3px;
}

/* Image scaling */
.card-back img,
.card-back {
  max-width: 90%;
  max-height: 90%;
  object-fit: contain;
}

/* Matched cards */
.pexeso-card.matched {
  pointer-events: none;
}

.pexeso-card.matched .card-back {
  border-color: #80ff80;
  box-shadow:
    inset -1px -1px #000,
    inset 1px 1px #fff,
    0 0 6px rgba(0, 255, 0, 0.6);
}

/* Ensure pointer events work on flipped cards */
.pexeso-card.flipped .card-front {
  pointer-events: none; /* Disable interaction with the front */
}

.pexeso-card.flipped .card-back {
  pointer-events: auto; /* Enable interaction with the back */
}

/* Status bar */
.pexeso-status {
  font-size: 0.9rem;
  padding: 4px 6px;
  background: #c0c0c0;
  border-top: 2px solid #fff;
  border-left: 2px solid #fff;
  border-bottom: 2px solid #808080;
  border-right: 2px solid #808080;
  text-align: center;
}

/* Mobile tightening */
@media (max-width: 480px) {
  .pexeso-card {
    height: 48px;
  }

  .pexeso-grid {
    gap: 4px;
  }
}

.reset-btn {
  margin-right: 10px; /* pushes it slightly left of dark mode */
}

.draggable-window {
  position: relative; /* or static, both are fine */
}

.draggable-window.floating {
  position: absolute;
  margin: 0 !important; /* prevent layout gaps */
}

.titlebar:active {
  cursor: grabbing;
}

.nav-actions {
  display: flex;
  align-items: center;
  gap: 8px;          /* space between reset + dark mode */
}

.text {
background:
  radial-gradient(
    ellipse 90% 75% at 48% 60%,
    rgba(255,255,255,0.45) 0%,
    rgba(255,255,255,0.25) 35%,
    rgba(255,255,255,0.08) 55%,
    rgba(255,255,255,0) 70%
  ),
  radial-gradient(
    ellipse 75% 65% at 54% 64%,
    rgba(255,255,255,0.35) 0%,
    rgba(255,255,255,0.15) 40%,
    rgba(255,255,255,0) 65%
  ),

  /* more bottom, less side - down-left */
  radial-gradient(
    ellipse 55% 65% at 28% 78%,
    rgba(255,255,255,0.22) 0%,
    rgba(255,255,255,0.10) 35%,
    rgba(255,255,255,0.03) 55%,
    rgba(255,255,255,0) 70%
  ),

  /* more bottom, less side - down-right */
  radial-gradient(
    ellipse 55% 65% at 72% 78%,
    rgba(255,255,255,0.22) 0%,
    rgba(255,255,255,0.10) 35%,
    rgba(255,255,255,0.03) 55%,
    rgba(255,255,255,0) 70%
  );

    max-width: 100%;
    padding: 5px;
}

.text-inside {
  text-align: justify;
  font-size: 20px;
  line-height: 1.5;
  font-weight: 500;
  font-family: Georgia, serif;
  box-sizing: border-box;
}

[data-theme="dark"] .text-inside {
  color: rgba(255, 255, 255, 0.9);
  opacity: 1;
}

[data-theme="dark"] .text {
  background: none;
}

/* =================================================
   Hack-the-Box Style Window
   ================================================= */

.hack-window {
  display: flex;
  flex-direction: column;
  background: #c0c0c0;
  border: 2px solid #fff;
  box-shadow: 2px 2px #808080, -2px -2px #fff;
  padding: 0;
  height: fit-content;
}

/* Title bar */
.hack-titlebar {
  background: #000080;
  color: white;
  font-family: 'Arial', sans-serif;
  font-size: 0.85rem;
  padding: 2px 6px;
  box-shadow: inset -1px -1px #000, inset 1px 1px #fff;
  user-select: none;
}

.hack-title {
  font-weight: bold;
}

/* Content */
.hack-content {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 6px;
  padding: 6px;
  background: #c0c0c0;
  border-top: 2px solid #fff;
  border-left: 2px solid #fff;
  border-bottom: 2px solid #808080;
  border-right: 2px solid #808080;
}

/* Image */
.hack-image {
  width: 180px;
  height: 120px;
  object-fit: contain;
  background: #e0e0e0;
  border: 2px solid #808080;
}

/* Login button */
.hack-login-btn {
  background: #e0e0e0;
  border: 2px solid #808080;
  padding: 4px 10px;
  font-family: 'Arial', sans-serif;
  font-size: 0.85rem;
  cursor: pointer;
  box-shadow: 2px 2px #808080, -2px -2px #fff;
}

.hack-login-btn:active {
  box-shadow: inset 2px 2px #808080, inset -2px -2px #fff;
}