/* 
  Global CSS for FreeTools 
  Theme: Dark Blue & White (SaaS-inspired)
*/

@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700&display=swap');

:root {
  /* Light Mode Variables */
  --bg-primary: #f8fafc;
  --bg-secondary: #ffffff;
  --text-primary: #0f172a;
  --text-secondary: #475569;
  --accent-color: #2563eb;
  --accent-hover: #1d4ed8;
  --border-color: #e2e8f0;
  --card-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.05), 0 2px 4px -1px rgba(0, 0, 0, 0.03);
  --header-bg: rgba(255, 255, 255, 0.9);
}

.dark {
  /* Dark Mode Variables */
  --bg-primary: #0f172a;
  --bg-secondary: #1e293b;
  --text-primary: #f8fafc;
  --text-secondary: #cbd5e1;
  --accent-color: #3b82f6;
  --accent-hover: #60a5fa;
  --border-color: #334155;
  --card-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.5), 0 2px 4px -1px rgba(0, 0, 0, 0.3);
  --header-bg: rgba(15, 23, 42, 0.9);
}

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

body {
  font-family: 'Inter', sans-serif;
  background-color: var(--bg-primary);
  color: var(--text-primary);
  line-height: 1.6;
  display: flex;
  flex-direction: column;
  min-height: 100vh;
  transition: background-color 0.3s ease, color 0.3s ease;
}

a {
  text-decoration: none;
  color: var(--accent-color);
  transition: color 0.2s ease;
}

a:hover {
  color: var(--accent-hover);
}

ul {
  list-style: none;
}

/* Typography */
h1, h2, h3, h4, h5, h6 {
  font-weight: 700;
  color: var(--text-primary);
  line-height: 1.2;
}

/* Layout Utilities */
.container {
  width: 100%;
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 20px;
}

main {
  flex-grow: 1;
  padding-top: 80px; /* Space for fixed header */
}

/* Header & Navigation */
header {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  background-color: var(--header-bg);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  z-index: 1000;
  border-bottom: 1px solid var(--border-color);
  transition: background-color 0.3s ease, border-color 0.3s ease;
}

.navbar {
  display: flex;
  justify-content: space-between;
  align-items: center;
  height: 80px;
}

.logo {
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--text-primary) !important;
  display: flex;
  align-items: center;
  gap: 10px;
}

.logo span {
  color: var(--accent-color);
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 30px;
}

.nav-links a {
  color: var(--text-secondary);
  font-weight: 500;
}

.nav-links a:hover, .nav-links a.active {
  color: var(--accent-color);
}

/* Dark Mode Toggle */
.theme-toggle {
  background: none;
  border: none;
  color: var(--text-primary);
  font-size: 1.2rem;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  border-radius: 50%;
  transition: background-color 0.2s;
}

.theme-toggle:hover {
  background-color: var(--bg-secondary);
}

/* Global Search Bar (Below Header) */
.search-bar-wrapper {
  padding-top: 30px;
  padding-bottom: 10px;
}

.global-search-container {
  position: relative;
  max-width: 600px;
  margin: 0 auto;
  display: flex;
  align-items: center;
  z-index: 500;
}

.global-search-input {
  width: 100%;
  padding: 14px 45px 14px 20px;
  border-radius: 30px;
  border: 2px solid var(--border-color);
  background-color: var(--bg-secondary);
  color: var(--text-primary);
  font-size: 1.05rem;
  box-shadow: var(--card-shadow);
  transition: all 0.3s ease;
  height: auto;
  font-family: inherit;
}

.global-search-input:focus {
  outline: none;
  border-color: var(--accent-color);
  box-shadow: 0 4px 12px rgba(37, 99, 235, 0.15);
  transform: translateY(-2px);
}

.global-search-icon {
  position: absolute;
  right: 20px;
  color: var(--text-secondary);
  pointer-events: none;
  transition: color 0.3s;
}

.global-search-input:focus + .global-search-icon {
  color: var(--accent-color);
}

.global-search-results {
  display: none;
  position: absolute;
  top: calc(100% + 10px);
  left: 0;
  width: 100%;
  max-height: 400px;
  overflow-y: auto;
  background-color: var(--bg-secondary);
  border: 1px solid var(--border-color);
  border-radius: 16px;
  box-shadow: 0 10px 25px -5px rgba(0, 0, 0, 0.2);
  flex-direction: column;
}

.search-result-item {
  padding: 15px 20px;
  border-bottom: 1px solid var(--border-color);
  display: flex;
  flex-direction: column;
  gap: 5px;
  text-decoration: none;
  transition: background-color 0.2s;
}

.search-result-item:last-child {
  border-bottom: none;
}

.search-result-item:hover {
  background-color: var(--bg-primary);
}

.search-result-title {
  color: var(--text-primary);
  font-weight: 600;
  font-size: 1rem;
}

.search-result-desc {
  color: var(--text-secondary);
  font-size: 0.85rem;
  line-height: 1.4;
}

/* Mobile Menu */
.hamburger {
  display: none;
  background: none;
  border: none;
  color: var(--text-primary);
  font-size: 1.5rem;
  cursor: pointer;
}

/* UI Components */
.btn {
  display: inline-block;
  padding: 10px 24px;
  border-radius: 8px;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.2s ease;
  border: none;
  font-size: 1rem;
}

.btn-primary {
  background-color: var(--accent-color);
  color: white !important;
  box-shadow: 0 4px 14px 0 rgba(37, 99, 235, 0.39);
}

.btn-primary:hover {
  background-color: var(--accent-hover);
  transform: translateY(-2px);
  box-shadow: 0 6px 20px rgba(37, 99, 235, 0.23);
}

.btn-outline {
  background-color: transparent;
  color: var(--text-primary) !important;
  border: 1px solid var(--border-color);
}

.btn-outline:hover {
  border-color: var(--accent-color);
  color: var(--accent-color) !important;
}

.btn-success {
  background-color: #22c55e !important;
  color: white !important;
  border-color: #22c55e !important;
}

.category-tag {
  display: inline-block;
  padding: 3px 10px;
  border-radius: 20px;
  font-size: 0.75rem;
  font-weight: 600;
  background-color: rgba(37, 99, 235, 0.1);
  color: var(--accent-color);
  margin-bottom: 10px;
  letter-spacing: 0.5px;
  text-transform: uppercase;
}

/* Cards */
.card {
  background-color: var(--bg-secondary);
  border-radius: 16px;
  padding: 30px;
  box-shadow: var(--card-shadow);
  border: 1px solid var(--border-color);
  transition: transform 0.3s ease, box-shadow 0.3s ease, border-color 0.3s ease, background-color 0.3s ease;
}

.card:hover {
  transform: translateY(-5px);
  box-shadow: 0 10px 25px -5px rgba(0, 0, 0, 0.1), 0 8px 10px -6px rgba(0, 0, 0, 0.1);
  border-color: var(--accent-color);
}

/* Inputs and Forms */
.form-group {
  margin-bottom: 20px;
}

.form-label {
  display: block;
  margin-bottom: 8px;
  font-weight: 500;
  color: var(--text-primary);
}

.form-control {
  width: 100%;
  padding: 12px 16px;
  border-radius: 8px;
  border: 1px solid var(--border-color);
  background-color: var(--bg-primary);
  color: var(--text-primary);
  font-family: inherit;
  font-size: 1rem;
  transition: border-color 0.2s ease, box-shadow 0.2s ease;
}

.form-control:focus {
  outline: none;
  border-color: var(--accent-color);
  box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.1);
}

textarea.form-control {
  resize: vertical;
  min-height: 120px;
}

/* Tool Page Specific */
.tool-header {
  text-align: center;
  margin-bottom: 40px;
  padding-top: 40px;
}

.tool-header h1 {
  font-size: 2.5rem;
  margin-bottom: 16px;
  background: linear-gradient(135deg, var(--accent-color), #8b5cf6);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.tool-header p {
  color: var(--text-secondary);
  font-size: 1.1rem;
  max-width: 600px;
  margin: 0 auto;
}

.tool-container {
  display: grid;
  grid-template-columns: 1fr;
  gap: 30px;
  max-width: 900px;
  margin: 0 auto 60px;
}

.tool-interface {
  background-color: var(--bg-secondary);
  padding: 40px;
  border-radius: 16px;
  box-shadow: var(--card-shadow);
  border: 1px solid var(--border-color);
}

.tool-actions {
  display: flex;
  gap: 15px;
  margin-top: 20px;
  flex-wrap: wrap;
}

.tool-result-box {
  margin-top: 30px;
  padding: 20px;
  border-radius: 8px;
  background-color: var(--bg-primary);
  border: 1px solid var(--border-color);
  min-height: 100px;
  word-break: break-all;
}

.tool-result-title {
  font-size: 0.9rem;
  text-transform: uppercase;
  letter-spacing: 1px;
  color: var(--text-secondary);
  margin-bottom: 10px;
  font-weight: 600;
}

.tool-result-value {
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--text-primary);
}

/* SEO Content Section */
.seo-content {
  max-width: 900px;
  margin: 60px auto;
  padding: 40px;
  background-color: var(--bg-secondary);
  border-radius: 16px;
  box-shadow: var(--card-shadow);
  border: 1px solid var(--border-color);
}

.seo-content h2, .seo-content h3 {
  margin-top: 30px;
  margin-bottom: 15px;
  color: var(--text-primary);
}

.seo-content p {
  margin-bottom: 20px;
  color: var(--text-secondary);
}

.seo-content ul {
  margin-bottom: 20px;
  padding-left: 20px;
  color: var(--text-secondary);
}

.seo-content li {
  margin-bottom: 10px;
  list-style-type: disc;
}

/* Ad Placeholders */
.ad-slot {
  width: 100%;
  background-color: var(--bg-secondary);
  border: 1px dashed var(--border-color);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--text-secondary);
  font-size: 0.9rem;
  margin: 30px 0;
  border-radius: 8px;
  text-align: center;
  position: relative;
  overflow: hidden;
}

.ad-slot::before {
  content: 'Advertisement';
  position: absolute;
  top: 5px;
  right: 10px;
  font-size: 0.7rem;
  opacity: 0.5;
}

.ad-banner {
  height: 90px;
  max-width: 728px;
  margin-left: auto;
  margin-right: auto;
}

.ad-rectangle {
  height: 250px;
  max-width: 300px;
  margin-left: auto;
  margin-right: auto;
}

/* Footer Element */
footer {
  background-color: var(--bg-secondary);
  border-top: 1px solid var(--border-color);
  padding: 60px 0 20px;
  margin-top: auto;
}

.footer-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 40px;
  margin-bottom: 40px;
}

.footer-col h3 {
  font-size: 1.2rem;
  margin-bottom: 20px;
  color: var(--text-primary);
}

.footer-col p {
  color: var(--text-secondary);
  margin-bottom: 15px;
}

.footer-links {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.footer-links a {
  color: var(--text-secondary);
}

.footer-links a:hover {
  color: var(--accent-color);
  padding-left: 5px;
}

.social-icons {
  display: flex;
  gap: 15px;
  margin-top: 20px;
}

.social-icons a {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  background-color: var(--bg-primary);
  border-radius: 50%;
  color: var(--text-secondary);
  transition: all 0.2s;
}

.social-icons a:hover {
  background-color: var(--accent-color);
  color: white;
  transform: translateY(-3px);
}

.footer-bottom {
  text-align: center;
  padding-top: 20px;
  border-top: 1px solid var(--border-color);
  color: var(--text-secondary);
  font-size: 0.9rem;
}

/* Animations */
@keyframes fadeIn {
  from { opacity: 0; transform: translateY(20px); }
  to { opacity: 1; transform: translateY(0); }
}

.animate-fade-in {
  animation: fadeIn 0.6s ease-out forwards;
}

@keyframes particleFloat {
  0% { transform: translateY(0) rotate(0deg); }
  50% { transform: translateY(-20px) rotate(10deg); }
  100% { transform: translateY(0) rotate(0deg); }
}

.particle {
  position: absolute;
  opacity: 0.1;
  animation: particleFloat 6s infinite ease-in-out;
  pointer-events: none;
}

/* Responsive */
@media (max-width: 768px) {
  .hamburger {
    display: block;
  }
  
  .nav-links {
    position: fixed;
    top: 80px;
    left: -100%;
    width: 100%;
    height: calc(100vh - 80px);
    background-color: var(--header-bg);
    flex-direction: column;
    justify-content: center;
    transition: left 0.3s ease;
    backdrop-filter: blur(10px);
  }
  
  .nav-links.active {
    left: 0;
  }
  
  .nav-links a {
    font-size: 1.5rem;
  }
  
  .tool-header h1 {
    font-size: 2rem;
  }
  
  .tool-interface {
    padding: 20px;
  }
}


/* Navigation Dropdown Menu */
.nav-dropdown {
    position: relative;
    display: inline-block;
}

.dropdown-trigger {
    cursor: pointer;
    display: flex;
    align-items: center;
    gap: 4px;
}

.dropdown-content {
    display: none;
    position: absolute;
    top: 100%;
    left: 50%;
    transform: translateX(-50%);
    background-color: var(--card-bg, #ffffff);
    min-width: 280px;
    box-shadow: 0 10px 40px rgba(0,0,0,0.1);
    border: 1px solid var(--border-color);
    border-radius: 12px;
    padding: 12px 0;
    z-index: 1000;
    opacity: 0;
    visibility: hidden;
    transition: all 0.2s cubic-bezier(0.16, 1, 0.3, 1);
    margin-top: 20px;
}

.dark .dropdown-content {
    background-color: #1e293b;
    box-shadow: 0 10px 40px rgba(0,0,0,0.5);
    border-color: #334155;
}

/* The magic spacer to prevent hover-off gaps */
.nav-dropdown::after {
    content: '';
    position: absolute;
    top: 100%;
    left: 0;
    width: 100%;
    height: 25px;
}

.nav-dropdown:hover .dropdown-content {
    display: block;
    opacity: 1;
    visibility: visible;
    margin-top: 10px;
}

.dropdown-content a {
    color: var(--text-primary) !important;
    padding: 10px 24px;
    text-decoration: none;
    display: block;
    font-size: 0.95rem;
    font-weight: 500 !important;
    transition: background-color 0.15s, color 0.15s, padding-left 0.2s;
}

.dropdown-content a:hover {
    background-color: var(--bg-secondary);
    color: var(--accent-color) !important;
    padding-left: 28px;
}

@media screen and (max-width: 768px) {
    .nav-dropdown {
        display: block;
        width: 100%;
    }
    
    .nav-dropdown::after {
        display: none;
    }
    
    .dropdown-content {
        position: static;
        transform: none;
        box-shadow: none;
        border: none;
        background: transparent;
        padding: 5px 0 5px 15px;
        min-width: 100%;
        display: none;
        margin-top: 0;
    }
    
    .dark .dropdown-content {
        background: transparent;
        box-shadow: none;
        border: none;
    }
    
    .nav-dropdown.active .dropdown-content {
        display: block !important;
        opacity: 1;
        visibility: visible;
        margin-top: 10px;
    }
    
    .dropdown-content a {
        padding: 12px 15px;
    }
    
    .dropdown-content a:hover {
        padding-left: 20px;
        background: transparent;
    }
}