/* CSS Reset and Base Styles */
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

:root {
  /* Dark Theme Color Palette */
  --bg-primary: #0a0a0a;
  --bg-secondary: #1a1a1a;
  --bg-tertiary: #2a2a2a;
  --bg-card: #1e1e1e;
  --bg-hover: #333333;
  --bg-code: #162447;

  /* Accent Colors */
  --accent-primary: #00ff88;
  --accent-secondary: #0088ff;
  --accent-danger: #ff4444;
  --accent-warning: #ffaa00;
  --accent-purple: #aa44ff;

  /* Text Colors */
  --text-primary: #ffffff;
  --text-secondary: #cccccc;
  --text-muted: #888888;
  --text-accent: var(--accent-primary);
  --text-code: #f0f0f0;

  /* Border and Shadow */
  --border-color: #333333;
  --shadow-light: 0 2px 10px rgba(0, 255, 136, 0.1);
  --shadow-medium: 0 4px 20px rgba(0, 255, 136, 0.2);
  --shadow-heavy: 0 8px 40px rgba(0, 255, 136, 0.3);

  /* Transitions */
  --transition-fast: 0.2s ease;
  --transition-medium: 0.3s ease;
  --transition-slow: 0.5s ease;

  /* Typography */
  --font-primary: "Segoe UI", Tahoma, Geneva, Verdana, sans-serif;
  --font-mono: "Consolas", "Monaco", "Courier New", monospace;
}

body {
  font-family: var(--font-primary);
  background: linear-gradient(
    135deg,
    var(--bg-primary) 0%,
    var(--bg-secondary) 100%
  );
  color: var(--text-primary);
  line-height: 1.6;
  overflow-x: hidden;
  min-height: 100vh;
}

/* Scrollbar Styling */
::-webkit-scrollbar {
  width: 8px;
}

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

::-webkit-scrollbar-thumb {
  background: var(--accent-primary);
  border-radius: 4px;
}

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

/* Container */
.container {
  max-width: 1400px;
  margin: 0 auto;
  padding: 0 20px;
}

/* Header Styles */
.header {
  background: linear-gradient(
    135deg,
    var(--bg-secondary) 0%,
    var(--bg-tertiary) 100%
  );
  border-bottom: 2px solid var(--accent-primary);
  box-shadow: var(--shadow-medium);
  top: 0;
  z-index: 1000;
  animation: slideDown 0.8s ease;
}

@keyframes slideDown {
  from {
    transform: translateY(-100%);
    opacity: 0;
  }
  to {
    transform: translateY(0);
    opacity: 1;
  }
}

.header-content {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 20px 0;
  flex-wrap: wrap;
}

.main-title {
  font-size: clamp(1.8rem, 4vw, 3rem);
  font-weight: 700;
  color: var(--text-primary);
  display: flex;
  align-items: center;
  gap: 15px;
  flex-direction: column;
  text-align: center;
}

.shield-icon {
  font-size: 1.2em;
  animation: pulse 2s infinite;
}

@keyframes pulse {
  0%,
  100% {
    transform: scale(1);
  }
  50% {
    transform: scale(1.1);
  }
}

.subtitle {
  font-size: 0.4em;
  color: var(--accent-primary);
  font-weight: 400;
  margin-top: 5px;
  animation: fadeInUp 1s ease 0.5s both;
}

@keyframes fadeInUp {
  from {
    opacity: 0;
    transform: translateY(20px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.header-stats {
  display: flex;
  gap: 30px;
  animation: fadeInRight 1s ease 0.3s both;
}

@keyframes fadeInRight {
  from {
    opacity: 0;
    transform: translateX(30px);
  }
  to {
    opacity: 1;
    transform: translateX(0);
  }
}

.stat-item {
  text-align: center;
  padding: 10px 20px;
  background: var(--bg-card);
  border-radius: 10px;
  border: 1px solid var(--border-color);
  transition: var(--transition-medium);
}

.stat-item:hover {
  transform: translateY(-5px);
  box-shadow: var(--shadow-light);
  border-color: var(--accent-primary);
}

.stat-number {
  display: block;
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--accent-primary);
}

.stat-label {
  font-size: 0.9rem;
  color: var(--text-secondary);
}

/* Instructions Section */
.instructions-section {
  padding: 60px 0;
  background: var(--bg-primary);
  animation: fadeIn 1s ease 0.8s both;
}

@keyframes fadeIn {
  from {
    opacity: 0;
  }
  to {
    opacity: 1;
  }
}

.instructions-card {
  background: var(--bg-card);
  border-radius: 20px;
  padding: 40px;
  border: 1px solid var(--border-color);
  box-shadow: var(--shadow-medium);
  transition: var(--transition-medium);
}

.instructions-card:hover {
  transform: translateY(-5px);
  box-shadow: var(--shadow-heavy);
}

.instructions-card h2 {
  font-size: 2rem;
  margin-bottom: 30px;
  text-align: center;
  color: var(--accent-primary);
}

.instructions-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 30px;
  margin-top: 30px;
}

.instruction-item {
  text-align: center;
  padding: 25px;
  background: var(--bg-secondary);
  border-radius: 15px;
  border: 1px solid var(--border-color);
  transition: var(--transition-medium);
  animation: slideInUp 0.6s ease both;
}

.instruction-item:nth-child(1) {
  animation-delay: 0.1s;
}
.instruction-item:nth-child(2) {
  animation-delay: 0.2s;
}
.instruction-item:nth-child(3) {
  animation-delay: 0.3s;
}
.instruction-item:nth-child(4) {
  animation-delay: 0.4s;
}

@keyframes slideInUp {
  from {
    opacity: 0;
    transform: translateY(30px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.instruction-item:hover {
  transform: translateY(-8px) scale(1.02);
  border-color: var(--accent-primary);
  box-shadow: var(--shadow-light);
}

.instruction-icon {
  font-size: 2.5rem;
  margin-bottom: 15px;
  animation: bounce 2s infinite;
}

@keyframes bounce {
  0%,
  20%,
  50%,
  80%,
  100% {
    transform: translateY(0);
  }
  40% {
    transform: translateY(-10px);
  }
  60% {
    transform: translateY(-5px);
  }
}

.instruction-item h3 {
  font-size: 1.2rem;
  margin-bottom: 10px;
  color: var(--accent-secondary);
}

.instruction-item p {
  color: var(--text-secondary);
  line-height: 1.5;
}

/* Search Section */
.search-section {
  padding: 40px 0;
  background: var(--bg-secondary);
  border-bottom: 1px solid var(--border-color);
  backdrop-filter: blur(10px);
}

.search-controls {
  display: flex;
  flex-direction: column;
  gap: 25px;
}

.search-bar-container {
  position: relative;
  max-width: 600px;
  margin: 0 auto;
  width: 100%;
}

.search-input {
  width: 100%;
  padding: 15px 50px 15px 20px;
  font-size: 1.1rem;
  background: var(--bg-card);
  border: 2px solid var(--border-color);
  border-radius: 50px;
  color: var(--text-primary);
  transition: var(--transition-medium);
  font-family: var(--font-primary);
}

.search-input:focus {
  outline: none;
  border-color: var(--accent-primary);
  box-shadow: 0 0 20px rgba(0, 255, 136, 0.3);
  transform: scale(1.02);
}

.search-input::placeholder {
  color: var(--text-muted);
}

.clear-btn {
  position: absolute;
  right: 15px;
  top: 50%;
  transform: translateY(-50%);
  background: none;
  border: none;
  color: var(--text-muted);
  font-size: 1.2rem;
  cursor: pointer;
  transition: var(--transition-fast);
  padding: 5px;
  border-radius: 50%;
}

.clear-btn:hover {
  color: var(--accent-danger);
  background: var(--bg-hover);
}

.filter-controls h3 {
  text-align: center;
  margin-bottom: 15px;
  color: var(--accent-primary);
  font-size: 1.2rem;
}

.category-filters {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  justify-content: center;
}

.filter-btn {
  padding: 8px 16px;
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: 25px;
  color: var(--text-secondary);
  cursor: pointer;
  transition: var(--transition-medium);
  font-size: 0.9rem;
  font-family: var(--font-primary);
  position: relative;
  overflow: hidden;
}

.filter-btn::before {
  content: "";
  position: absolute;
  top: 0;
  left: -100%;
  width: 100%;
  height: 100%;
  background: linear-gradient(
    90deg,
    transparent,
    rgba(0, 255, 136, 0.2),
    transparent
  );
  transition: var(--transition-medium);
}

.filter-btn:hover::before {
  left: 100%;
}

.filter-btn:hover {
  border-color: var(--accent-primary);
  color: var(--text-primary);
  transform: translateY(-2px);
  box-shadow: var(--shadow-light);
}

.filter-btn.active {
  background: var(--accent-primary);
  color: var(--bg-primary);
  border-color: var(--accent-primary);
  font-weight: 600;
}

.results-info {
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 15px;
}

#results-count {
  color: var(--text-secondary);
  font-style: italic;
}

.expand-btn,
.collapse-btn {
  padding: 8px 16px;
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: 20px;
  color: var(--text-primary);
  cursor: pointer;
  transition: var(--transition-medium);
  font-family: var(--font-primary);
}

.expand-btn:hover,
.collapse-btn:hover {
  border-color: var(--accent-primary);
  color: var(--text-primary);
  transform: translateY(-2px);
  box-shadow: var(--shadow-light);
}

/* Tools Section */
.tools-section {
  padding: 40px 0 80px;
  background: var(--bg-primary);
  min-height: 60vh;
}

.tools-grid {
  display: grid;
  gap: 20px;
}

.category-section {
  background: var(--bg-card);
  border-radius: 15px;
  border: 1px solid var(--border-color);
  overflow: hidden;
  transition: var(--transition-medium);
  animation: slideInUp 0.6s ease both;
}

.category-section:hover {
  box-shadow: var(--shadow-light);
  transform: translateY(-2px);
}

.category-header {
  padding: 20px 25px;
  background: linear-gradient(
    135deg,
    var(--bg-secondary) 0%,
    var(--bg-tertiary) 100%
  );
  border-bottom: 1px solid var(--border-color);
  cursor: pointer;
  display: flex;
  justify-content: space-between;
  align-items: center;
  transition: var(--transition-medium);
  position: relative;
  overflow: hidden;
}

.category-header::before {
  content: "";
  position: absolute;
  top: 0;
  left: -100%;
  width: 100%;
  height: 100%;
  background: linear-gradient(
    90deg,
    transparent,
    rgba(0, 255, 136, 0.1),
    transparent
  );
  transition: var(--transition-slow);
}

.category-header:hover::before {
  left: 100%;
}

.category-header:hover {
  background: linear-gradient(
    135deg,
    var(--bg-tertiary) 0%,
    var(--bg-hover) 100%
  );
}

.category-title {
  font-size: 1.4rem;
  font-weight: 600;
  color: var(--accent-primary);
  display: flex;
  align-items: center;
  gap: 10px;
}

.category-icon {
  font-size: 1.2em;
}

.toggle-icon {
  font-size: 1.2rem;
  color: var(--text-secondary);
  transition: var(--transition-medium);
}

.category-section.collapsed .toggle-icon {
  transform: rotate(-90deg);
}

.tools-list {
  max-height: none;
  overflow: visible;
  transition: max-height 0.5s ease, opacity 0.3s ease;
  opacity: 1;
}

.category-section.collapsed .tools-list {
  max-height: 0;
  opacity: 0;
  overflow: hidden;
}

.tool-item {
  padding: 20px 25px;
  border-bottom: 1px solid var(--border-color);
  transition: var(--transition-medium);
  position: relative;
  overflow: hidden;
}

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

.tool-item::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0;
  width: 3px;
  height: 100%;
  background: var(--accent-primary);
  transform: scaleY(0);
  transition: var(--transition-medium);
}

.tool-item:hover::before {
  transform: scaleY(1);
}

.tool-item:hover {
  background: var(--bg-secondary);
  padding-left: 35px;
}

.tool-header {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  margin-bottom: 10px;
  flex-wrap: wrap;
  gap: 10px;
}

.tool-name {
  font-size: 1.2rem;
  font-weight: 600;
  color: var(--text-primary);
  font-family: var(--font-mono);
}
.social-links {
  display: flex;
  gap: 1.2rem;
  list-style: none;
  margin: 0;
  padding: 0;
  align-self: flex-end;
}

.social-icon {
  color: var(--text-secondary);
  transition: var(--transition-medium);
}

.social-icon:hover {
  color: var(--accent-primary);
  transform: scale(1.1);
  filter: drop-shadow(0 0 5px rgba(0, 255, 136, 0.3));
}

.tool-description {
  color: var(--text-secondary);
  line-height: 1.6;
  margin-bottom: 10px;
}

.tool-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.tool-tag {
  padding: 3px 8px;
  background: var(--bg-tertiary);
  border: 1px solid var(--border-color);
  border-radius: 10px;
  font-size: 0.75rem;
  color: var(--text-muted);
  transition: var(--transition-fast);
}

.tool-tag:hover {
  background: var(--accent-primary);
  color: var(--bg-primary);
  border-color: var(--accent-primary);
}

.tool-tags span:hover {
  background: var(--accent-primary);
  color: var(--bg-primary);
  transform: scale(1.05);
  border-radius: 10px;
}

.tool-footer {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-top: 20px;
  padding-top: 15px;
  border-top: 1px solid var(--border-color);
}

.guide-button {
  background: var(--accent-primary);
  color: var(--bg-primary);
  padding: 8px 15px;
  border-radius: 5px;
  text-decoration: none;
  font-weight: 700;
  font-size: 0.9rem;
  transition: all 0.3s ease;
  white-space: nowrap;
}

.guide-button:hover {
  position: relative;
}

.guide-button:hover::after {
  content: "GO TO PAGE";
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0.5;
  animation: reverbEcho 2s ease;
}
@keyframes reverbEcho {
  0% {
    transform: scale(1);
    opacity: 0.5;
  }
  50% {
    transform: scale(1.5);
    opacity: 0.2;
  }
  100% {
    transform: scale(2);
    opacity: 0;
  }
}

.tool-usage {
  margin-top: 15px;
  padding-top: 15px;
  border-top: 1px solid var(--border-color);
}

.usage-title {
  font-size: 0.9rem;
  font-weight: 700;
  color: var(--accent-primary-light);
  margin-bottom: 8px;
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.usage-code {
  background: var(--bg-code);
  border: 1px solid var(--border-color);
  border-left: 4px solid var(--accent-primary);
  border-radius: 8px;
  padding: 15px;
  font-family: var(--font-mono);
  font-size: 0.9rem;
  color: var(--text-code);
  white-space: pre-wrap;
  word-wrap: break-word;
}

/* Footer */
.footer {
  background: var(--bg-secondary);
  border-top: 1px solid var(--border-color);
  padding: 40px 0;
  text-align: center;
}

.footer-content p {
  margin-bottom: 10px;
  color: var(--text-secondary);
}

.footer-content p:first-child {
  color: var(--accent-primary);
  font-weight: 600;
  font-size: 1.1rem;
}

.footer-links {
  margin-top: 20px;
  color: var(--text-muted);
  font-style: italic;
}

/* Loading Animation */
.loading-overlay {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: var(--bg-primary);
  display: flex;
  justify-content: center;
  align-items: center;
  z-index: 10000;
  transition: opacity 0.5s ease;
}

.loading-overlay.hidden {
  opacity: 0;
  pointer-events: none;
}

.loading-spinner {
  text-align: center;
}

.spinner {
  width: 50px;
  height: 50px;
  border: 3px solid var(--border-color);
  border-top: 3px solid var(--accent-primary);
  border-radius: 50%;
  animation: spin 1s linear infinite;
  margin: 0 auto 20px;
}

@keyframes spin {
  0% {
    transform: rotate(0deg);
  }
  100% {
    transform: rotate(360deg);
  }
}

.loading-spinner p {
  color: var(--text-secondary);
  font-size: 1.1rem;
}

/* Responsive Design */
@media (max-width: 768px) {
  .container {
    padding: 0 15px;
  }

  .header-content {
    flex-direction: column;
    gap: 20px;
    text-align: center;
  }

  .header-stats {
    gap: 20px;
  }

  .instructions-grid {
    grid-template-columns: 1fr;
  }

  .search-controls {
    gap: 20px;
  }

  .category-filters {
    gap: 8px;
  }

  .filter-btn {
    font-size: 0.8rem;
    padding: 6px 12px;
  }

  .results-info {
    flex-direction: column;
    text-align: center;
  }

  .tool-header {
    flex-direction: column;
    align-items: flex-start;
  }

  .main-title {
    font-size: 1.8rem;
  }

  .search-section {
    top: 70px;
  }
}

@media (max-width: 480px) {
  .instructions-card {
    padding: 25px;
  }

  .category-header {
    padding: 15px 20px;
  }

  .tool-item {
    padding: 15px 20px;
  }

  .category-title {
    font-size: 1.2rem;
  }

  .tool-name {
    font-size: 1.1rem;
  }
}

/* Utility Classes */
.hidden {
  display: none !important;
}

.fade-in {
  animation: fadeIn 0.5s ease both;
}

.slide-in-left {
  animation: slideInLeft 0.5s ease both;
}

@keyframes slideInLeft {
  from {
    opacity: 0;
    transform: translateX(-30px);
  }
  to {
    opacity: 1;
    transform: translateX(0);
  }
}

.highlight {
  background: rgba(0, 255, 136, 0.2);
  border-radius: 3px;
  padding: 1px 3px;
}
.header-content {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 20px 0;
  flex-wrap: wrap;
  gap: 20px;
  position: relative;
}