/* Master CSS for VTools */

* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
  font-family: system-ui, -apple-system, BlinkMacSystemFont, sans-serif;
}

body {
  background: #0f172a;
  color: #ffffff;
  line-height: 1.6;
  min-height: 100vh;
}

/* ===== NAVBAR ===== */
.navbar {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 20px 40px;
  background: #0f172a;
  border-bottom: 1px solid #1e293b;
}

.logo {
  font-size: 20px;
  font-weight: 600;
  color: inherit;
  text-decoration: none;
}

/* Ensure logo anchors don't look like standard links */
.logo, .logo:link, .logo:visited {
  color: inherit;
  text-decoration: none;
}
.logo:hover, .logo:active {
  color: inherit;
  text-decoration: none;
}

.logo span {
  color: #38bdf8;
}

nav a {
  margin-left: 20px;
  text-decoration: none;
  color: #94a3b8;
  font-size: 14px;
  transition: 0.3s ease;
}

nav a:hover {
  color: white;
}

.back-link {
  text-decoration: none;
  color: #38bdf8;
  font-weight: 600;
  transition: 0.3s ease;
}

.back-link:hover {
  color: #0ea5e9;
}

/* ===== LAYOUT ===== */
.container {
  max-width: 1200px;
  margin: 40px auto;
  padding: 0 20px;
}

.header {
  margin-bottom: 40px;
}

.header h1 {
  font-size: 32px;
  margin-bottom: 10px;
}

.header p {
  color: #94a3b8;
  font-size: 16px;
}

.main-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 30px;
  margin-bottom: 40px;
}

@media (max-width: 768px) {
  .main-grid {
    grid-template-columns: 1fr;
  }
}

.grid-2 {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 15px;
}

.grid-3 {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 15px;
}

@media (max-width: 768px) {
  .grid-3 {
    grid-template-columns: 1fr;
  }
}

/* ===== CARDS ===== */
.card {
  background: #1e293b;
  border: 1px solid #334155;
  border-radius: 10px;
  padding: 25px;
  transition: 0.3s ease;
}

.card:hover {
  border-color: #475569;
}

.card h2 {
  margin-bottom: 20px;
  font-size: 20px;
  display: flex;
  align-items: center;
  gap: 10px;
}

.card h3 {
  margin-bottom: 15px;
  font-size: 16px;
}

/* ===== FORM ELEMENTS ===== */
.input-group {
  margin-bottom: 20px;
}

label {
  display: block;
  margin-bottom: 8px;
  color: #cbd5e1;
  font-weight: 500;
  font-size: 14px;
}

input[type="text"],
input[type="password"],
input[type="color"],
input[type="range"],
input[type="number"],
select,
textarea {
  width: 100%;
  padding: 10px 12px;
  background: #0f172a;
  color: #ffffff;
  border: 1px solid #334155;
  border-radius: 6px;
  font-size: 14px;
  transition: 0.3s ease;
}

input[type="color"] {
  height: 45px;
  cursor: pointer;
  padding: 5px;
}

input[type="text"]:focus,
input[type="password"]:focus,
input[type="color"]:focus,
input[type="range"]:focus,
input[type="number"]:focus,
select:focus,
textarea:focus {
  outline: none;
  border-color: #38bdf8;
  box-shadow: 0 0 0 3px rgba(56, 189, 248, 0.1);
}

input[type="range"] {
  padding: 0;
  height: 6px;
  cursor: pointer;
}

textarea {
  resize: vertical;
  font-family: 'Courier New', monospace;
  min-height: 100px;
}

/* ===== CHECKBOXES & TOGGLES ===== */
input[type="checkbox"] {
  width: 20px;
  height: 20px;
  cursor: pointer;
  accent-color: #38bdf8;
}

.checkbox-group {
  display: flex;
  flex-direction: column;
  gap: 12px;
  margin-bottom: 20px;
}

.checkbox-item {
  display: flex;
  align-items: center;
  gap: 10px;
  cursor: pointer;
}

.checkbox-item input {
  cursor: pointer;
}

.checkbox-item label {
  margin: 0;
  cursor: pointer;
  user-select: none;
}

/* ===== BUTTONS ===== */
button,
.button,
.btn {
  background: #38bdf8;
  color: black;
  padding: 10px 20px;
  border: none;
  border-radius: 6px;
  font-weight: 600;
  cursor: pointer;
  font-size: 14px;
  transition: 0.3s ease;
}

button:hover,
.button:hover,
.btn:hover {
  opacity: 0.9;
  transform: translateY(-2px);
}

button:active,
.button:active,
.btn:active {
  transform: translateY(0);
}

.button-secondary {
  background: #334155;
  color: #cbd5e1;
}

.button-secondary:hover {
  background: #475569;
  color: white;
}

.button-danger {
  background: #ef4444;
  color: white;
}

.button-danger:hover {
  background: #dc2626;
}

.button-group {
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
  margin-bottom: 20px;
}

.button-full {
  width: 100%;
  margin-bottom: 10px;
}

.copy-btn {
  background: none;
  border: none;
  color: #38bdf8;
  cursor: pointer;
  font-size: 16px;
  padding: 5px;
  transition: 0.3s ease;
}

.copy-btn:hover {
  color: #0ea5e9;
}

/* ===== NOTIFICATIONS ===== */
.copy-feedback {
  position: fixed;
  top: 20px;
  right: 20px;
  background: #10b981;
  color: white;
  padding: 12px 20px;
  border-radius: 6px;
  font-size: 14px;
  animation: slideIn 0.3s ease;
  z-index: 1000;
}

.notification {
  padding: 15px 20px;
  border-radius: 6px;
  margin-bottom: 15px;
  font-size: 14px;
}

.notification.success {
  background: #064e3b;
  color: #86efac;
  border: 1px solid #10b981;
}

.notification.error {
  background: #7f1d1d;
  color: #fca5a5;
  border: 1px solid #ef4444;
}

.notification.info {
  background: #0c2340;
  color: #7dd3fc;
  border: 1px solid #38bdf8;
}

@keyframes slideIn {
  from {
    transform: translateX(400px);
    opacity: 0;
  }
  to {
    transform: translateX(0);
    opacity: 1;
  }
}

/* ===== DISPLAY ELEMENTS ===== */
.value-display {
  display: flex;
  align-items: center;
  gap: 10px;
  background: #0f172a;
  padding: 12px;
  border-radius: 6px;
  border: 1px solid #334155;
  font-family: 'Courier New', monospace;
  font-size: 13px;
  word-break: break-all;
}

.value-label {
  color: #94a3b8;
  font-size: 12px;
  min-width: 60px;
}

.slider-group {
  margin-bottom: 20px;
}

.slider-label {
  display: flex;
  justify-content: space-between;
  margin-bottom: 8px;
  align-items: center;
}

.slider-value {
  background: #38bdf8;
  color: black;
  padding: 4px 10px;
  border-radius: 4px;
  font-weight: 600;
  font-size: 12px;
}

.info-box {
  background: #0c2340;
  border: 1px solid #38bdf8;
  border-radius: 6px;
  padding: 15px;
  margin-bottom: 20px;
  color: #7dd3fc;
  font-size: 13px;
}

.info-box strong {
  color: #0ea5e9;
}

/* ===== STRENGTH METER ===== */
.strength-meter {
  height: 8px;
  background: #0f172a;
  border-radius: 4px;
  overflow: hidden;
  margin-bottom: 10px;
}

.strength-bar {
  height: 100%;
  width: 0%;
  transition: width 0.3s ease;
}

.strength-weak {
  background: #ef4444;
}

.strength-fair {
  background: #f59e0b;
}

.strength-good {
  background: #3b82f6;
}

.strength-strong {
  background: #10b981;
}

.strength-text {
  font-size: 12px;
  font-weight: 600;
  margin-bottom: 15px;
}

.strength-weak-text {
  color: #ef4444;
}

.strength-fair-text {
  color: #f59e0b;
}

.strength-good-text {
  color: #3b82f6;
}

.strength-strong-text {
  color: #10b981;
}

/* ===== GRID ITEMS ===== */
.item-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(80px, 1fr));
  gap: 10px;
}

.item {
  height: 80px;
  border-radius: 6px;
  cursor: pointer;
  border: 2px solid transparent;
  transition: 0.3s ease;
  display: flex;
  align-items: center;
  justify-content: center;
}

.item:hover {
  border-color: #38bdf8;
  transform: scale(1.05);
}

/* ===== FOOTER ===== */
footer {
  text-align: center;
  padding: 30px;
  border-top: 1px solid #1e293b;
  color: #94a3b8;
  font-size: 14px;
  margin-top: 60px;
}

footer a {
  color: #38bdf8;
  text-decoration: none;
  transition: 0.3s ease;
}

footer a:hover {
  color: #0ea5e9;
  text-decoration: underline;
}

/* ===== UTILITY CLASSES ===== */
.emoji {
  font-size: 20px;
}

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

.text-muted {
  color: #94a3b8;
}

.mt-20 {
  margin-top: 20px;
}

.mb-20 {
  margin-bottom: 20px;
}

.flex {
  display: flex;
}

.flex-between {
  display: flex;
  justify-content: space-between;
}

.flex-center {
  display: flex;
  align-items: center;
  justify-content: center;
}

.gap-10 {
  gap: 10px;
}

.hidden {
  display: none;
}

/* ===== RESPONSIVE ===== */
@media (max-width: 768px) {
  .navbar {
    padding: 15px 20px;
  }

  .container {
    padding: 0 15px;
  }

  .header h1 {
    font-size: 24px;
  }

  .grid-2,
  .grid-3 {
    grid-template-columns: 1fr;
  }

  button {
    width: 100%;
  }
}