:root {
  --primary:#0056ff;
  --secondary:#fafafa;
  --text:#222;
  --border-color: #ccc;
  --error-color: #dc3545;
  --match-highlight-bg: #ffd700; /* Gold */
}
body{font-family:Poppins,sans-serif;margin:0;background:var(--secondary);color:var(--text);}
.container{max-width:1100px;margin:auto;padding:20px;}
header{background:#fff;box-shadow:0 2px 6px rgba(0,0,0,0.1);padding:15px 20px;position:sticky;top:0;z-index:999;display:flex;justify-content:space-between;align-items:center;}
.logo{font-weight:600;text-decoration:none;color:var(--primary);font-size:18px;}
nav a{margin-left:15px;text-decoration:none;color:var(--primary);}
nav a:hover{color:#0039c1;}
.breadcrumb{margin:10px 0;color:#555;}
.tool-box{background:#fff;padding:25px;border-radius:12px;box-shadow:0 2px 10px rgba(0,0,0,0.05);text-align:left;}
.tool-box h1, .tool-box .description { text-align: center; }
.tool-icon{width:80px;height:80px;margin-bottom:15px; display: block; margin-left: auto; margin-right: auto;}
.description{max-width:600px;margin:auto; margin-bottom: 25px;}

/* Regex Input Styles */
.regex-container {
  display: flex;
  align-items: center;
  border: 1px solid var(--border-color);
  border-radius: 6px;
  padding: 5px;
  font-family: monospace;
  font-size: 1.1rem;
}
.regex-container input {
  border: none;
  outline: none;
  padding: 8px;
  font-size: inherit;
  font-family: inherit;
}
#regexPattern {
  flex-grow: 1;
}
#regexFlags {
  width: 80px;
  flex-shrink: 0;
}
.regex-slash {
  color: #888;
  font-size: 1.5rem;
  padding: 0 5px;
}
.error-message {
  color: var(--error-color);
  font-size: 0.9rem;
  margin-top: 5px;
  min-height: 1.2em;
}
.invalid-regex {
  border-color: var(--error-color);
  box-shadow: 0 0 5px rgba(220, 53, 69, 0.5);
}

/* Test String & Results Styles */
.test-string-container, .results-container {
  margin-top: 20px;
}
.tool-box label {
  font-weight: 600;
  margin-bottom: 8px;
  display: block;
}
textarea {
  width: 100%;
  height: 150px;
  padding: 10px;
  border-radius: 6px;
  border: 1px solid var(--border-color);
  font-family: monospace;
  font-size: 1rem;
  box-sizing: border-box;
  resize: vertical;
}
.results-box {
  width: 100%;
  min-height: 150px;
  padding: 10px;
  border-radius: 6px;
  border: 1px solid var(--border-color);
  font-family: monospace;
  font-size: 1rem;
  background-color: #f8f9fa;
  white-space: pre-wrap;
  word-wrap: break-word;
}
.match-highlight {
  background-color: var(--match-highlight-bg);
  border-radius: 3px;
}
.match-info-box {
  margin-top: 10px;
  padding: 15px;
  background-color: #e9ecef;
  border-radius: 6px;
  font-size: 0.9rem;
}
.match-info-box ul {
  margin: 0;
  padding-left: 20px;
}

.adsense{text-align:center;background:#eee;padding:15px;margin:20px 0;border-radius:8px;}
.grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(250px,1fr));gap:20px;margin-top:15px;}
.card{background:#fff;padding:20px;border-radius:10px;box-shadow:0 2px 8px rgba(0,0,0,0.05);text-align:center; display: flex; flex-direction: column;}
.card a { margin-top: auto; }
.card img{width:50px;height:50px;margin-bottom:10px;}
.card button{background:var(--primary); padding: 10px 20px; font-size: 14px; border: none; border-radius: 6px; color: #fff; cursor: pointer;}
.faq{margin-top:40px;}
.faq-item{background:#fff;padding:15px;border-radius:8px;margin-bottom:10px;box-shadow:0 2px 6px rgba(0,0,0,0.05);}
footer{text-align:center;padding:20px;background:#fff;margin-top:40px;box-shadow:0 -2px 6px rgba(0,0,0,0.1);}
#backToTop{position:fixed;bottom:20px;right:20px;background:var(--primary);color:#fff;border:none;border-radius:6px;padding:10px 15px;cursor:pointer;display:none;}
/* style.css */

/* --- Global Styles & Variables --- */
:root {
  --primary: #0056ff;
  --secondary: linear-gradient(135deg, #00E0FF, #00FFFF); /* Bright Cyan Gradient */
  --text: #222;
}

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

.container {
  max-width: 1200px;
  margin: auto;
  padding: 20px;
}

/* --- Header Styles --- */
header {
  position: sticky;
  top: 0;
  z-index: 1000;
  background: linear-gradient(90deg, #0056ff, #00aaff);
  padding: 15px 30px;
  box-shadow: 0 4px 12px rgba(0,0,0,0.2);
  border-bottom-left-radius: 12px;
  border-bottom-right-radius: 12px;
}

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

/* Logo */
.logo-link {
  display: flex;
  align-items: center;
  text-decoration: none;
  transition: transform 0.3s ease;
}

.logo-img {
  margin-right: 12px;
  filter: brightness(1) invert(0.9) sepia(0.8) saturate(3) hue-rotate(45deg);
}

.logo-text {
  font-size: 24px;
  color: #fff;
  text-shadow: 1px 1px 5px rgba(0,0,0,0.3);
  font-weight: 700;
}

/* Navbar links */
#navbar {
  display: flex;
  align-items: center;
  gap: 20px;
}

#navbar a {
  color: #fff;
  font-weight: 600;
  font-size: 16px;
  text-decoration: none;
  transition: all 0.3s ease;
  padding: 5px 0;
}

#navbar a:hover {
  color: #fffa;
  transform: scale(1.1);
}

/* Hamburger Icon */
#hamburger {
  display: none;
  flex-direction: column;
  cursor: pointer;
  gap: 5px;
  z-index: 1002;
}

#hamburger span {
  width: 25px;
  height: 3px;
  background: #fff;
  border-radius: 3px;
  transition: all 0.3s ease;
}

/* Dropdown styles */
.dropdown {
  position: relative;
}

.dropbtn {
  background: none;
  border: none;
  color: #fff;
  font-weight: 600;
  cursor: pointer;
  font-size: 16px;
  font-family: Poppins, sans-serif;
}

.dropdown-content {
  display: none;
  position: absolute;
  top: 100%;
  left: 0;
  background: #0056ff;
  border-radius: 8px;
  box-shadow: 0 4px 10px rgba(0,0,0,0.2);
  min-width: 180px;
  z-index: 999;
  border: 1px solid #004acb;
}

.dropdown-content a {
  display: block;
  padding: 10px 15px;
  color: #ffffff;
  text-decoration: none;
  transition: background-color 0.2s ease;
}

.dropdown-content a:hover {
  background-color: #004acb;
}

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

/* --- Mobile Responsive Menu --- */
@media screen and (max-width: 768px) {
  #hamburger {
    display: flex;
  }

  #navbar {
    position: fixed;
    top: 80px;
    right: 15px;
    width: 250px;
    background: linear-gradient(180deg, #0056ff, #00399d);
    flex-direction: column;
    align-items: flex-start;
    padding: 10px 0;
    gap: 0;
    box-shadow: -5px 5px 15px rgba(0,0,0,0.25);
    z-index: 1001;
    border-radius: 12px;
    transform: translateX(110%);
    transition: transform 0.3s ease-in-out;
  }

  #navbar.show {
    display: flex;
    transform: translateX(0);
  }

  #navbar a, .dropdown {
    padding: 15px 25px;
    text-align: left;
    width: 100%;
    box-sizing: border-box;
  }

  .dropdown-content {
    position: static;
    display: none;
    background: rgba(0, 0, 0, 0.2);
    box-shadow: none;
    border-radius: 0;
    border: none;
    min-width: 100%;
  }

  .dropdown-content a {
    color: #e0f7ff;
    font-weight: normal;
    padding-left: 40px;
  }

  .dropdown.active .dropdown-content {
    display: block;
  }
}

/* --- Footer Styles --- */
footer a {
  text-decoration: none;
  color: var(--primary);
  margin-right: 15px;
}

footer a:hover {
  color: #0039c1;
}

/* Social media icon hover effect */
.footer-social a:hover {
    transform: scale(1.15);
}