/* ===== Variables ===== */
:root {
  --primary-bg: #1a1a2e;
  --secondary-bg: #16213e;
  --card-bg: #0f3460;
  --accent: #e94560;
  --accent-hover: #d63651;
  --text: #eaeaea;
  --text-light: #fff;
  --border-rad: 12px;
  --shadow: 0 8px 32px rgba(0, 0, 0, 0.3);
  --transition: all 0.3s ease;
}

/* ===== Reset ===== */
* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

body {
  font-family: 'Segoe UI', 'Roboto', Arial, sans-serif;
  background: linear-gradient(135deg, #0f0c29, #302b63, #24243e);
  color: var(--text);
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

/* ===== Top Container ===== */
#top-container {
  background: linear-gradient(135deg, #2a2a40, #1a1a2e);
  padding: 20px;
  text-align: center;
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.4);
  position: sticky;
  top: 0;
  z-index: 100;
}

#top-container h1 {
  color: #00ffd5;
  font-size: 28px;
  margin-bottom: 15px;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
}

.nav-links {
  display: flex;
  justify-content: center;
  gap: 15px;
  flex-wrap: wrap;
}

.nav-links a {
  padding: 10px 24px;
  background: var(--accent);
  border-radius: var(--border-rad);
  color: var(--text-light);
  font-weight: 600;
  text-decoration: none;
  font-size: 16px;
  transition: var(--transition);
  box-shadow: var(--shadow);
}

.nav-links a:hover {
  background: var(--accent-hover);
  transform: translateY(-3px);
  box-shadow: 0 12px 24px rgba(233, 69, 96, 0.4);
}

/* ===== Ad Containers ===== */
.ad-horizontal-top,
.ad-horizontal-bottom {
  width: 100%;
  margin: 15px 0;
  padding: 10px;
  display: block;
}

/* ===== Main Content Wrapper ===== */
.content-wrapper {
  max-width: 1600px;
  margin: 0 auto;
  padding: 20px;
  display: grid;
  grid-template-columns: auto 1fr auto;
  gap: 20px;
  flex: 1;
  width: 100%;
  align-items: start;
}

/* ===== Side Ad Columns ===== */
.ad-left,
.ad-right {
  display: flex;
  flex-direction: column;
  gap: 20px;
  position: sticky;
  top: 120px;
  align-self: start;
}

.ad-square {
  display: block;
  padding: 0;
}

/* ===== Center Content Area ===== */
#response-container {
  background: linear-gradient(135deg, var(--card-bg), var(--secondary-bg));
  padding: 30px;
  border-radius: var(--border-rad);
  box-shadow: var(--shadow);
  border: 2px solid rgba(233, 69, 96, 0.3);
  width: 100%;
}

#response-container h2 {
  color: var(--text-light);
  text-align: center;
  font-size: 26px;
  margin-bottom: 20px;
  text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.3);
}

/* ===== Textarea ===== */
#inputBox {
  width: 100%;
  height: 300px;
  padding: 15px;
  border: 2px solid var(--accent);
  border-radius: var(--border-rad);
  resize: vertical;
  font-size: 16px;
  background-color: rgba(255, 255, 255, 0.95);
  color: #222;
  box-shadow: inset 0 2px 6px rgba(0, 0, 0, 0.1);
  transition: var(--transition);
  font-family: 'Courier New', monospace;
}

#inputBox:focus {
  border-color: var(--accent-hover);
  outline: none;
  box-shadow: 0 0 15px rgba(233, 69, 96, 0.4);
}

/* ===== Buttons ===== */
#response-container button,
#convertButton {
  display: block;
  margin: 20px auto;
  padding: 14px 35px;
  background: linear-gradient(135deg, var(--accent), var(--accent-hover));
  color: var(--text-light);
  font-size: 18px;
  font-weight: 600;
  border: none;
  border-radius: var(--border-rad);
  cursor: pointer;
  box-shadow: var(--shadow);
  transition: var(--transition);
  text-transform: uppercase;
  letter-spacing: 1px;
}

#response-container button:hover,
#convertButton:hover {
  transform: translateY(-3px);
  box-shadow: 0 12px 24px rgba(233, 69, 96, 0.5);
  background: linear-gradient(135deg, var(--accent-hover), #c02a43);
}

/* ===== Bottom Ads Section ===== */
.ad-bottom {
  grid-column: 1 / -1;
  display: flex;
  flex-wrap: wrap;
  gap: 20px;
  margin-top: 20px;
  justify-content: center;
}

/* ===== Info Section ===== */
section {
  grid-column: 1 / -1;
  background: linear-gradient(135deg, var(--secondary-bg), var(--primary-bg));
  padding: 30px;
  border-radius: var(--border-rad);
  box-shadow: var(--shadow);
  margin-top: 20px;
  border: 2px solid rgba(233, 69, 96, 0.2);
}

section h2 {
  color: var(--accent);
  margin-bottom: 15px;
  font-size: 24px;
}

section ul {
  list-style-position: inside;
  line-height: 1.8;
  color: var(--text);
}

section ul li {
  margin-bottom: 10px;
}

section code {
  background: rgba(233, 69, 96, 0.2);
  padding: 2px 6px;
  border-radius: 4px;
  color: #00ffd5;
  font-family: 'Courier New', monospace;
}

/* ===== Tablet Layout ===== */
@media (max-width: 1200px) {
  .content-wrapper {
    gap: 15px;
    padding: 15px;
  }

  .ad-left,
  .ad-right {
    gap: 15px;
  }
}

/* ===== Mobile Layout ===== */
@media (max-width: 768px) {
  #top-container h1 {
    font-size: 22px;
  }

  .content-wrapper {
    grid-template-columns: 1fr;
    padding: 10px;
    gap: 15px;
  }

  /* Keep left ads at top on mobile */
  .ad-left {
    grid-row: 1;
    position: relative;
    top: 0;
    order: 1;
  }

  /* Content in middle */
  #response-container {
    order: 2;
    padding: 20px;
  }

  /* Right ads below content */
  .ad-right {
    order: 3;
    position: relative;
    top: 0;
  }

  /* Bottom ads at end */
  .ad-bottom {
    order: 4;
    flex-direction: column;
    align-items: center;
  }

  section {
    order: 5;
    padding: 20px;
  }

  #inputBox {
    height: 250px;
    font-size: 14px;
  }

  #response-container button,
  #convertButton {
    width: 100%;
    font-size: 16px;
  }
}

/* ===== Small Mobile ===== */
@media (max-width: 480px) {
  #top-container {
    padding: 15px 10px;
  }

  #top-container h1 {
    font-size: 18px;
    flex-direction: column;
  }

  .nav-links a {
    padding: 8px 16px;
    font-size: 14px;
  }

  #response-container {
    padding: 15px;
  }

  #response-container h2 {
    font-size: 20px;
  }
}

/* ===== Scrollbar Styling ===== */
::-webkit-scrollbar {
  width: 10px;
}

::-webkit-scrollbar-track {
  background: var(--primary-bg);
}

::-webkit-scrollbar-thumb {
  background: var(--accent);
  border-radius: 5px;
}

::-webkit-scrollbar-thumb:hover {
  background: var(--accent-hover);
}