:root {
  --bg: #1f2f5c;
  --card: #273a7a;
  --accent: #2de2e6;
  --text: #ffffff;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: Arial, sans-serif;
}

.header {
  position: sticky;
  top: 0;
  background: #18234a;
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 12px 24px;
  z-index: 999;
}

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

.logo img { height: 36px; }

nav a, nav span {
  color: var(--accent);
  margin-left: 15px;
  cursor: pointer;
  text-decoration: none;
  font-weight: bold;
}

.dropdown {
  position: relative;
  display: inline-block;
}

.dropdown-menu {
  display: none;
  position: absolute;
  background: #24346b;
  padding: 10px;
  top: 24px;
  min-width: 180px;
}

.dropdown:hover .dropdown-menu {
  display: block;
}

.dropdown-menu a {
  display: block;
  color: #fff;
  padding: 6px 0;
}

.container {
  display: grid;
  grid-template-columns: 160px 1fr 160px;
  gap: 20px;
  padding: 20px;
}

.content { text-align: center; }

.subtitle { opacity: 0.8; }

.tools-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px,1fr));
  gap: 20px;
  margin-top: 30px;
}

.tool-card {
  background: var(--card);
  padding: 20px;
  border-radius: 12px;
  transition: transform .2s;
}

.tool-card:hover { transform: translateY(-5px); }

.icon {
  font-size: 36px;
  margin-bottom: 10px;
}

.ad {
  background: #0f1a3a;
  display: flex;
  align-items: center;
  justify-content: center;
  color: #aaa;
  font-size: 14px;
}

.ad-vertical { height: 500px; }
.ad-horizontal { margin: 20px; padding: 20px; }

footer {
  background: #18234a;
  text-align: center;
  padding: 20px;
}

footer a {
  color: var(--accent);
  margin: 0 10px;
  text-decoration: none;
}
/* ====== GLOBAL ====== */
body {
  margin: 0;
  font-family: Arial, sans-serif;
  background: #1e2f57;
  color: #fff;
}

/* ====== HEADER ====== */
.main-header {
  background: #1b2b4f;
  padding: 12px 30px;
}

.header-inner {
  max-width: 1200px;
  margin: auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.logo {
  display: flex;
  align-items: center;
  gap: 10px;
  text-decoration: none;
  color: #00e5ff;
  font-size: 20px;
  font-weight: bold;
}

.logo img {
  height: 32px;
}

/* ====== NAV ====== */
nav a, nav span {
  color: #00e5ff;
  margin-left: 18px;
  text-decoration: none;
  font-weight: 500;
}

.dropdown {
  display: inline-block;
  position: relative;
}

.dropdown-menu {
  display: none;
  position: absolute;
  background: #243866;
  padding: 10px;
  top: 25px;
  right: 0;
  min-width: 180px;
}

.dropdown:hover .dropdown-menu {
  display: block;
}

.dropdown-menu a {
  display: block;
  padding: 6px 0;
  color: #fff;
}

/* ====== ADS ====== */
.ad {
  background: rgba(255,255,255,0.08);
  text-align: center;
  padding: 15px;
  margin: 10px 0;
  font-size: 14px;
}

.ad-top, .ad-bottom {
  max-width: 1200px;
  margin: 15px auto;
}

/* ====== MAIN GRID ====== */
.tool-page {
  max-width: 1200px;
  margin: auto;
  display: grid;
  grid-template-columns: 180px 1fr 180px;
  gap: 20px;
  padding: 20px;
}

/* ====== TOOL BOX ====== */
.tool-box {
  background: #243866;
  padding: 30px;
  border-radius: 8px;
}

.tool-box h1 {
  margin-top: 0;
}

.upload-box {
  border: 2px dashed #00e5ff;
  padding: 30px;
  text-align: center;
  cursor: pointer;
  margin: 20px 0;
}

.primary-btn {
  background: #00e5ff;
  border: none;
  padding: 12px 20px;
  font-size: 16px;
  cursor: pointer;
  border-radius: 4px;
}

/* ====== FOOTER ====== */
.footer {
  background: #1b2b4f;
  text-align: center;
  padding: 15px;
  margin-top: 40px;
}

.footer a {
  color: #00e5ff;
  margin: 0 6px;
  text-decoration: none;
}

/* ====== MOBILE ====== */
@media (max-width: 900px) {
  .tool-page {
    grid-template-columns: 1fr;
  }
  .ad-left, .ad-right {
    display: none;
  }
}
.upload-warning {
  background: rgba(255, 193, 7, 0.15);
  border-left: 4px solid #ffc107;
  padding: 12px;
  margin-bottom: 15px;
  font-size: 14px;
  color: #ffd966;
}

textarea {
      width: 100%;
      height: 400px;
      margin-top: 15px;
      padding: 10px;
      font-family: monospace;
    }
canvas{border:1px solid #ccc;background:#fff;height:150px;}

a:link {
  color: #2de2e6;
  background-color: transparent;
  text-decoration: none;
}

a:visited {
  color: pink;
  background-color: transparent;
  text-decoration: none;
}

a:hover {
  color: red;
  background-color: transparent;
  text-decoration: underline;
}

a:active {
  color: yellow;
  background-color: transparent;
  text-decoration: underline;
}