:root {
  --bg-color: #050505;
  --panel-bg: rgba(25, 25, 30, 0.6);
  --panel-border: rgba(255, 255, 255, 0.08);
  --text-primary: #ffffff;
  --text-secondary: #a0a0ab;
  --accent-1: #6366f1; /* Indigo */
  --accent-2: #d946ef; /* Fuchsia */
  --accent-3: #8b5cf6; /* Violet */
  --input-bg: rgba(0, 0, 0, 0.5);
  --input-border: rgba(255, 255, 255, 0.15);
  --input-focus: rgba(99, 102, 241, 0.5);
  --font-main: "Outfit", sans-serif;
  --transition: all 0.3s cubic-bezier(0.25, 0.8, 0.25, 1);
}

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

body {
  font-family: var(--font-main);
  background-color: var(--bg-color);
  color: var(--text-primary);
  min-height: 100vh;
  display: flex;
  justify-content: center;
  align-items: center;
  overflow-x: hidden;
  position: relative;
}

/* Dynamic Background Shapes */
.background-animation {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  z-index: -1;
  overflow: hidden;
}

.shape {
  position: absolute;
  filter: blur(90px);
  opacity: 0.5;
  animation: float 20s infinite ease-in-out alternate;
}

.shape-1 {
  top: -10%;
  left: -10%;
  width: 50vw;
  height: 50vw;
  background: radial-gradient(circle, var(--accent-1) 0%, transparent 70%);
  animation-delay: 0s;
}

.shape-2 {
  bottom: -10%;
  right: -10%;
  width: 60vw;
  height: 60vw;
  background: radial-gradient(circle, var(--accent-2) 0%, transparent 70%);
  animation-delay: -5s;
}

.shape-3 {
  top: 30%;
  left: 40%;
  width: 40vw;
  height: 40vw;
  background: radial-gradient(circle, var(--accent-3) 0%, transparent 70%);
  animation-delay: -10s;
}

@keyframes float {
  0% {
    transform: translate(0, 0) scale(1);
  }
  100% {
    transform: translate(5%, 10%) scale(1.1);
  }
}

/* Layout */
.container {
  width: 100%;
  max-width: 560px;
  padding: 2rem;
  display: flex;
  flex-direction: column;
  gap: 2rem;
  z-index: 1;
}

header {
  text-align: center;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.5rem;
}

.logo-icon {
  width: 56px;
  height: 56px;
  background: linear-gradient(135deg, var(--accent-1), var(--accent-2));
  border-radius: 16px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.5rem;
  font-weight: 800;
  margin-bottom: 0.5rem;
  box-shadow: 0 10px 25px rgba(99, 102, 241, 0.4);
}

h1 {
  font-size: 2.25rem;
  font-weight: 800;
  letter-spacing: -0.02em;
  background: linear-gradient(to right, #fff, #d1d5db);
  background-clip: text;
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

header p {
  color: var(--text-secondary);
  font-size: 1.05rem;
}

/* Tabs */
.tabs {
  display: flex;
  gap: 1rem;
  margin-bottom: 1.5rem;
}

.tab-btn {
  flex: 1;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0.75rem;
  padding: 1rem;
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: 16px;
  color: var(--text-secondary);
  font-family: var(--font-main);
  font-weight: 600;
  cursor: pointer;
  transition: var(--transition);
}

.tab-btn svg {
  opacity: 0.6;
}

.tab-btn:hover {
  background: rgba(255, 255, 255, 0.1);
  border-color: rgba(255, 255, 255, 0.2);
}

.tab-btn.active {
  background: rgba(99, 102, 241, 0.15);
  border-color: var(--accent-1);
  color: white;
}

.tab-btn.active svg {
  opacity: 1;
  color: var(--accent-1);
}

.tab-content {
  display: none;
}

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

.no-margin {
  margin-top: 0 !important;
}

/* Glassmorphism Panels */
.glass-panel {
  background: var(--panel-bg);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border: 1px solid var(--panel-border);
  border-radius: 24px;
  padding: 2rem;
  box-shadow: 0 25px 50px -12px rgba(0, 0, 0, 0.5);
  transition: var(--transition);
}

.glass-panel:hover {
  border-color: rgba(255, 255, 255, 0.15);
  box-shadow: 0 30px 60px -12px rgba(0, 0, 0, 0.6);
}

/* Forms & Inputs */
.settings-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1.5rem;
  margin-top: 1.5rem;
}

.input-group {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

.input-group.full-width {
  grid-column: 1 / -1;
}

label {
  font-size: 0.875rem;
  font-weight: 600;
  color: #e2e8f0;
  letter-spacing: 0.02em;
}

input[type="text"],
input[type="tel"],
select {
  width: 100%;
  background: var(--input-bg);
  border: 1px solid var(--input-border);
  border-radius: 12px;
  padding: 1rem 1.25rem;
  color: var(--text-primary);
  font-family: var(--font-main);
  font-size: 1rem;
  outline: none;
  transition: var(--transition);
}

input[type="text"]:focus,
input[type="tel"]:focus,
select:focus {
  border-color: var(--accent-1);
  box-shadow: 0 0 0 3px var(--input-focus);
}

input[type="text"]::placeholder,
input[type="tel"]::placeholder {
  color: #64748b;
}

/* Color Picker */
.color-picker-wrapper {
  position: relative;
  background: var(--input-bg);
  border: 1px solid var(--input-border);
  border-radius: 12px;
  padding: 0.5rem;
  display: flex;
  align-items: center;
  gap: 0.75rem;
  transition: var(--transition);
}

.color-picker-wrapper:focus-within {
  border-color: var(--accent-1);
  box-shadow: 0 0 0 3px var(--input-focus);
}

input[type="color"] {
  -webkit-appearance: none;
  -moz-appearance: none;
  appearance: none;
  width: 32px;
  height: 32px;
  border: none;
  border-radius: 8px;
  cursor: pointer;
  background: transparent;
}

input[type="color"]::-webkit-color-swatch-wrapper {
  padding: 0;
}

input[type="color"]::-webkit-color-swatch {
  border: none;
  border-radius: 6px;
  box-shadow: 0 0 0 1px rgba(255, 255, 255, 0.2);
}

.color-value {
  font-size: 0.875rem;
  font-family: monospace;
  color: var(--text-secondary);
  text-transform: uppercase;
}

/* Range Slider */
input[type="range"] {
  appearance: none;
  -webkit-appearance: none;
  width: 100%;

  height: 6px;
  background: var(--input-border);
  border-radius: 3px;
  outline: none;
  margin: 1rem 0;
}

input[type="range"]::-webkit-slider-thumb {
  -webkit-appearance: none;
  appearance: none;
  width: 20px;
  height: 20px;
  border-radius: 50%;
  background: #fff;
  cursor: pointer;
  box-shadow: 0 0 10px rgba(255, 255, 255, 0.5);
  transition: var(--transition);
}

input[type="range"]::-webkit-slider-thumb:hover {
  transform: scale(1.2);
  box-shadow: 0 0 15px rgba(255, 255, 255, 0.8);
}

/* Buttons */
.btn-primary,
.btn-secondary {
  width: 100%;
  padding: 1rem 1.5rem;
  border-radius: 12px;
  font-family: var(--font-main);
  font-size: 1rem;
  font-weight: 600;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0.75rem;
  transition: var(--transition);
  border: none;
  margin-top: 1.5rem;
}

.btn-primary {
  background: linear-gradient(135deg, var(--accent-1), var(--accent-2));
  color: white;
  box-shadow: 0 4px 15px rgba(99, 102, 241, 0.3);
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 25px rgba(99, 102, 241, 0.5);
}

.btn-primary:active {
  transform: translateY(0);
}

.btn-secondary {
  background: rgba(255, 255, 255, 0.1);
  color: white;
  border: 1px solid rgba(255, 255, 255, 0.1);
  margin-top: 1rem;
}

.btn-secondary:hover {
  background: rgba(255, 255, 255, 0.15);
  border-color: rgba(255, 255, 255, 0.25);
}

/* Result Area */
#result-container {
  display: none;
  flex-direction: column;
  align-items: center;
  gap: 1.5rem;
  text-align: center;
  animation: slideUp 0.5s cubic-bezier(0.16, 1, 0.3, 1) forwards;
}

#result-container.show {
  display: flex;
}

#result-container h2 {
  font-size: 1.25rem;
  font-weight: 600;
}

#qr-code-wrapper {
  background: white;
  padding: 1rem;
  border-radius: 16px;
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.5);
  display: flex;
  justify-content: center;
  align-items: center;
  color: black;
}

#qr-canvas {
  max-width: 100%;
  height: auto !important; /* Make responsive */
}

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

/* Responsive adjustments */
@media (max-width: 600px) {
  .settings-grid {
    grid-template-columns: 1fr;
    gap: 1rem;
  }

  .container {
    padding: 1rem;
  }
}