* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
  font-family: "Segoe UI", Tahoma, Geneva, Verdana, sans-serif;
}

body {
  background: linear-gradient(135deg, #1a1a2e, #16213e);
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: 20px;
  color: #fff;
  overflow-x: hidden;
}

.header {
  text-align: center;
  margin-bottom: 30px;
}

.header h1 {
  font-size: 2.8rem;
  margin-bottom: 10px;
  background: linear-gradient(90deg, #ff6b6b, #4ecdc4);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  text-shadow: 0 0 15px rgba(78, 205, 196, 0.3);
}

.header p {
  font-size: 1.2rem;
  opacity: 0.8;
}

.result-box {
  background: rgba(0, 0, 0, 0.7);
  width: 100%;
  max-width: 900px;
  height: 120px;
  border-radius: 15px;
  padding: 20px;
  margin-bottom: 30px;
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.5);
  overflow: auto;
  position: relative;
  border: 1px solid rgba(255, 255, 255, 0.1);
}

#result {
  color: white;
  font-size: 1.5rem;
  min-height: 100%;
  word-wrap: break-word;
  line-height: 1.6;
}

.cursor {
  display: inline-block;
  width: 8px;
  height: 1.5rem;
  background: #4ecdc4;
  margin-left: 3px;
  animation: blink 1s infinite;
  vertical-align: middle;
}

@keyframes blink {
  0%,
  100% {
    opacity: 1;
  }

  50% {
    opacity: 0;
  }
}

.container {
  width: 100%;
  max-width: 900px;
  background: rgba(0, 0, 0, 0.4);
  border-radius: 20px;
  padding: 25px;
  box-shadow: 0 15px 35px rgba(0, 0, 0, 0.5);
  backdrop-filter: blur(10px);
  border: 1px solid rgba(255, 255, 255, 0.1);
}

.keyboard-line {
  display: flex;
  justify-content: center;
  gap: 8px;
  margin-bottom: 12px;
}

.key {
  background: linear-gradient(145deg, #2a2a40, #222235);
  color: #e0e0ff;
  height: 60px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 12px;
  font-weight: 600;
  font-size: 1.1rem;
  cursor: pointer;
  user-select: none;
  box-shadow: 0 5px 15px rgba(0, 0, 0, 0.4);
  transition: all 0.15s ease;
  position: relative;
  overflow: hidden;
  border: 1px solid rgba(255, 255, 255, 0.05);
  flex-grow: 1;
}

.key::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: rgba(255, 255, 255, 0.1);
  transform: translateY(100%);
  transition: transform 0.3s ease;
}

.key:hover {
  transform: translateY(-3px);
  box-shadow: 0 8px 20px rgba(0, 0, 0, 0.6);
}

.key:hover::before {
  transform: translateY(0);
}

.key.pressed {
  transform: scale(0.85);
  box-shadow: 0 2px 5px rgba(0, 0, 0, 0.2);
  background: linear-gradient(145deg, #ff6b6b, #4ecdc4);
}

.key.pressed::after {
  content: "";
  position: absolute;
  top: 50%;
  left: 50%;
  width: 100%;
  height: 100%;
  background: radial-gradient(
    circle,
    rgba(255, 255, 255, 0.4) 0%,
    transparent 70%
  );
  transform: translate(-50%, -50%) scale(1.5);
  opacity: 0;
  animation: ripple 0.6s ease-out;
}

@keyframes ripple {
  to {
    transform: translate(-50%, -50%) scale(4);
    opacity: 1;
  }
}

.key.special {
  background: linear-gradient(145deg, #4a4a6a, #3a3a5a);
}

.key.active {
  background: linear-gradient(145deg, #ff9e68, #ff6b6b);
  color: #fff;
  box-shadow: 0 0 20px rgba(255, 107, 107, 0.5);
}

.key i {
  font-size: 1.4rem;
}

.key.space {
width: 30%;
}

.key.backspace,
.key.tab,
.key.caps,
.key.enter,
.key.shift {
  background: linear-gradient(145deg, #3d3d5f, #323250);
}

.status-bar {
  display: flex;
  justify-content: space-between;
  gap: 1rem;
  margin-top: 25px;
  padding: 15px 20px;
  background: rgba(0, 0, 0, 0.3);
  border-radius: 12px;
  font-size: 0.9rem;
}

.status-item {
  display: flex;
  align-items: center;
  gap: 10px;
}

.status-indicator {
  width: 15px;
  height: 15px;
  border-radius: 50%;
  background: #ff4757;
}

.status-indicator.active {
  background: #2ed573;
  box-shadow: 0 0 10px #2ed573;
}

.wave {
    position: absolute;
    bottom: 0;
    left: 0;
    width: 200%; /* 2x عرض صفحه برای حرکت روان */
    height: 100px;
    background-size: 50% 100%; /* نصف عرض برای تکرار بی‌درز */
    transform: rotate(180deg);
    animation: wave 15s linear infinite;
    z-index: -1;
}

.wave:nth-child(2) {
    animation: wave 20s linear infinite; /* سرعت متفاوت برای افکت موجی */
    opacity: 0.5;
}

@keyframes wave {
    0% { transform: translateX(0) rotate(180deg); }
    100% { transform: translateX(-50%) rotate(180deg); /* حرکت 50% برای تکرار بی‌درز */
}
}

.key-label {
  position: relative;
  z-index: 2;
}

.secondary-label {
  position: absolute;
  top: 5px;
  right: 8px;
  font-size: 0.7rem;
  color: #4ecdc4;
}

@media (max-width: 768px) {
  .key {
    height: 50px;
    font-size: 1rem;
  }

  .result-box {
    height: 100px;
  }

  #result {
    font-size: 1.2rem;
  }
}