:root {
  --accent: #0078ff;
  --accent-light: #e6f0ff;
  --bg: #f9fafb;
  --text: #1e1e1e;
  --radius: 12px;
}

body {
  font-family: "Segoe UI", Arial, sans-serif;
  background: var(--bg);
  color: var(--text);
  margin: 0;
  padding: 20px;
  display: flex;
  flex-direction: column;
  align-items: center;
  min-height: 100vh;
}

h2 {
  text-align: center;
  color: var(--accent);
  margin-bottom: 10px;
  font-size: 1.4rem;
}

.container {
  width: 100%;
  max-width: 480px;
  background: white;
  border-radius: var(--radius);
  box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
  padding: 16px;
}

textarea {
  width: 100%;
  height: 120px;
  border: 1px solid #ccc;
  border-radius: var(--radius);
  padding: 10px;
  font-size: 1rem;
  resize: none;
  box-sizing: border-box;
  transition: 0.2s;
}

textarea:focus {
  outline: none;
  border-color: var(--accent);
  background: var(--accent-light);
}

.buttons {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 10px;
}

button {
  flex: 1;
  min-width: 100px;
  background: var(--accent);
  color: white;
  border: none;
  border-radius: var(--radius);
  padding: 10px;
  font-size: 0.95rem;
  cursor: pointer;
  transition: 0.2s;
}

button:hover {
  background: #005fd1;
}

.clear-btn {
  background: #999;
}

.clear-btn:hover {
  background: #777;
}

.result {
  margin-top: 16px;
  white-space: pre-wrap;
  font-family: monospace;
  background: var(--accent-light);
  border-radius: var(--radius);
  padding: 12px;
  min-height: 80px;
}

.links {
  display: flex;
  justify-content: space-around;
  margin-top: 16px;
  flex-wrap: wrap;
  gap: 10px;
}

.links a {
  background: var(--accent-light);
  color: var(--accent);
  text-decoration: none;
  padding: 8px 14px;
  border-radius: var(--radius);
  font-weight: 500;
  font-size: 0.9rem;
  transition: 0.2s;
}

.links a:hover {
  background: var(--accent);
  color: white;
}
.modal {
  display: none;
  position: fixed;
  inset: 0;
  background: rgba(0,0,0,0.92);
  z-index: 9999;
  overflow: auto;
}

.slider-container {
  position: relative;
  width: 94%;
  max-width: 1350px;
  margin: 40px auto;
}

.slides .slide {
  display: none;
  text-align: center;
}

.slides .slide.active {
  display: block;
}

.slides img {
  max-width: 100%;
  max-height: 82vh;
  border-radius: 8px;
  cursor: pointer;
  object-fit: contain;
}

.caption {
  color: #fff;
  background: rgba(0,0,0,0.65);
  padding: 10px 18px;
  font-size: 1.1rem;
  margin-top: 8px;
  border-radius: 6px;
  display: inline-block;
}

.prev, .next {
  position: absolute;
  top: 50%;
  transform: translateY(-50%);
  background: rgba(0,0,0,0.5);
  color: white;
  border: none;
  font-size: 32px;
  padding: 12px;
  cursor: pointer;
  border-radius: 50%;
  width: 60px;
  height: 60px;
  line-height: 36px;
}

.prev { left: 10px; }
.next { right: 10px; }

.close {
  position: absolute;
  top: 15px;
  right: 25px;
  color: white;
  font-size: 48px;
  font-weight: bold;
  cursor: pointer;
  z-index: 10000;
}

img:fullscreen,
img:-webkit-full-screen {
  width: 100vw !important;
  height: 100vh !important;
  object-fit: contain;
  border-radius: 0;
  background: #000;
}
.prev, .next {
  display: block !important;
  opacity: 1 !important;
  background: rgba(0,0,0,0.7) !important;
  color: white !important;
  font-size: 40px !important;
  width: 80px !important;
  height: 80px !important;
}

@media (max-width: 500px) {
  h2 {
    font-size: 1.2rem;
  }

  button {
    font-size: 0.9rem;
  }

  .links a {
    flex: 1;
    text-align: center;
  }
}