body {
  font-family: 'Inter', sans-serif;
  background: radial-gradient(circle, var(--background-start) 0%, var(--background-end) 100%);
  color: var(--text-color);
  margin: 0;
  padding: 20px 10px; /* Reduced padding */
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  align-items: center;
  min-height: 100vh;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

.container {
  max-width: 900px; /* Slightly reduced max-width */
  width: 100%;
}

h1 {
  font-size: 36px; /* Slightly reduced font size */
  font-weight: 800;
  text-align: center;
  margin-bottom: 0.3rem; /* Reduced margin */
  letter-spacing: -0.03em;
  color: var(--text-color);
}

.tagline {
  font-size: 16px; /* Slightly reduced font size */
  text-align: center;
  color: var(--helper-text-color);
  margin-bottom: 1.5rem; /* Reduced margin */
  line-height: 1.4;
}

.card {
  background-color: var(--card-background-color);
  border-radius: 12px;
  box-shadow: 0 1px 3px rgba(0, 0, 0, 0.04), 0 10px 15px rgba(0, 0, 0, 0.08);
  padding: 20px; /* Reduced padding */
  margin-bottom: 16px; /* Reduced margin */
  border: 1px solid var(--border-color);
}

.card.input-card {
  display: flex;
  flex-direction: column;
}

.input-group {
  position: relative;
  flex-grow: 1; /* Allow this section to grow */
}

label {
  font-size: 16px;
  font-weight: 600;
  margin-bottom: 8px;
  display: block;
  color: var(--text-color);
}

.input-wrapper {
    position: relative;
}

#text {
  width: 100%;
  font-size: 16px;
  padding: 12px 40px 12px 12px;
  border: 1px solid var(--input-border-color);
  border-radius: 8px;
  box-sizing: border-box;
  transition: border-color 0.2s ease-in-out, box-shadow 0.2s ease-in-out;
  color: var(--text-color);
  background-color: var(--card-background-color);
}

#text::placeholder {
    color: var(--placeholder-color);
}

#text:focus {
    border-color: var(--input-focus-border-color);
    outline: 3px solid var(--input-focus-shadow-color);
}

#clear-btn {
    position: absolute;
    top: 50%;
    right: 12px;
    transform: translateY(-50%);
    background: none;
    border: none;
    font-size: 20px;
    cursor: pointer;
    color: var(--placeholder-color);
    display: none;
    width: 24px;
    height: 24px;
    border-radius: 50%;
    transition: color 0.2s ease, background-color 0.2s ease;
}

#clear-btn:hover {
    color: var(--helper-text-color);
    background-color: var(--background-end);
}

.helper-text {
  font-size: 13px;
  color: var(--helper-text-color);
  margin-top: 12px;
  line-height: 1.5;
  margin-bottom: 16px;
}

.input-footer {
    display: flex;
    justify-content: flex-end;
    align-items: center;
    margin-top: 8px; /* Reduced margin */
}

.download-buttons {
    display: none;
    justify-content: center;
    gap: 1rem;
    margin-top: 1rem; /* Reduced margin */
    animation: fadeIn 0.5s ease forwards;
}

.char-counter {
  font-size: 12px;
  color: var(--helper-text-color);
}

.error-message {
  font-size: 12px;
  color: var(--error-color);
  display: none;
}

.btn {
  font-size: 16px;
  font-weight: 500;
  padding: 12px 24px;
  border-radius: 8px;
  cursor: pointer;
  border: none;
  width: 100%;
  transition: transform 0.2s ease, box-shadow 0.2s ease;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
}

.btn-primary {
  background: linear-gradient(to bottom right, var(--primary-color-start), var(--primary-color-end));
  color: white;
  box-shadow: 0 10px 20px -5px rgba(82, 92, 235, 0.4);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 12px 22px -5px rgba(82, 92, 235, 0.5);
}

.btn-primary:active {
    transform: translateY(1px);
    box-shadow: 0 8px 18px -5px rgba(82, 92, 235, 0.4);
}

#generate-btn {
  margin-top: auto; /* Pushes the button to the bottom */
}

.btn-secondary {
    background-color: transparent;
    color: var(--primary-color-start);
    border: 1px solid var(--primary-color-start);
}

.btn-secondary:hover {
    background-color: var(--background-start);
}

#qrcode-container {
  display: flex;
  justify-content: center;
  align-items: center;
  min-height: 290px;
  transition: opacity 0.5s ease, transform 0.5s ease;
  opacity: 1;
  transform: scale(1);
}

#qrcode-container.hidden {
    opacity: 0;
    transform: scale(0.95);
}

#qrcode-placeholder {
    text-align: center;
    color: var(--helper-text-color);
}

#qrcode-placeholder svg {
    width: 64px;
    height: 64px;
    fill: var(--input-border-color);
    margin-bottom: 1rem;
}

#qrcode {
    padding: 20px;
    background-color: var(--card-background-color);
    border-radius: 10px;
    display: none;
}

.download-buttons {
    display: none;
    justify-content: center;
    gap: 1rem;
    margin-top: 1.5rem;
    animation: fadeIn 0.5s ease forwards;
}

@keyframes fadeIn {
    from { opacity: 0; transform: translateY(10px); }
    to { opacity: 1; transform: translateY(0); }
}

.customize-section {
    margin-top: 16px; /* Reduced margin */
    border-top: 1px solid var(--border-color);
    padding-top: 12px; /* Reduced padding */
    margin-bottom: 16px; /* Reduced margin */
}

.customize-toggle {
    font-weight: 600;
    cursor: pointer;
    display: flex;
    align-items: center;
    gap: 8px;
    color: var(--helper-text-color);
    transition: color 0.2s ease;
    margin-bottom: 16px; /* Added margin-bottom to separate toggle from options */
}

.customize-toggle:hover {
    color: var(--text-color);
}

.customize-toggle svg {
    transition: transform 0.3s ease;
}

.customize-options {
    display: none;
    flex-direction: column; /* Changed to column layout */
    gap: 16px;
}

.customize-options.visible {
    display: flex; /* Changed to flex */
}

.form-group-row {
    display: flex;
    gap: 16px;
}

.form-group-row .form-group {
    flex: 1;
}

.form-group {
    display: flex;
    flex-direction: column;
}

.form-group label {
    font-size: 14px;
    font-weight: 500;
    margin-bottom: 8px; /* Increased margin-bottom for better spacing */
}

.form-group input[type="range"] {
    -webkit-appearance: none;
    appearance: none;
    width: 100%;
    height: 8px;
    background: var(--border-color);
    border-radius: 5px;
    outline: none;
    opacity: 0.7;
    -webkit-transition: .2s;
    transition: opacity .2s;
}

.form-group input[type="range"]:hover {
    opacity: 1;
}

.form-group input[type="range"]::-webkit-slider-thumb {
    -webkit-appearance: none;
    appearance: none;
    width: 20px;
    height: 20px;
    background: var(--primary-color-start);
    border-radius: 50%;
    cursor: pointer;
}

.form-group input[type="range"]::-moz-range-thumb {
    width: 20px;
    height: 20px;
    background: var(--primary-color-start);
    border-radius: 50%;
    cursor: pointer;
}

.form-group input[type="color"] {
    -webkit-appearance: none;
    -moz-appearance: none;
    appearance: none;
    width: 44px;
    height: 44px;
    background-color: transparent;
    border: none;
    cursor: pointer;
}
.form-group input[type="color"]::-webkit-color-swatch-wrapper {
    padding: 0;
}
.form-group input[type="color"]::-webkit-color-swatch {
    border: 1px solid var(--input-border-color);
    border-radius: 6px;
}

.btn-group {
    display: flex;
    border: 1px solid var(--input-border-color);
    border-radius: 8px;
    overflow: hidden; /* Ensures the child elements adhere to the border radius */
}

.btn-group-item {
    flex: 1;
    padding: 6px 10px;
    background-color: var(--card-background-color);
    border: none;
    cursor: pointer;
    font-size: 13px;
    color: var(--text-color);
    transition: background-color 0.2s ease, color 0.2s ease;
}

.btn-group-item:not(:last-child) {
    border-right: 1px solid var(--input-border-color);
}

.btn-group-item.active {
    background-color: var(--primary-color-start);
    color: #fff;
}


.info-tooltip {
    position: relative;
    display: inline-block;
    margin-left: 4px;
}

.info-tooltip svg {
    cursor: help;
}

.info-tooltip::before, .info-tooltip::after {
    position: absolute;
    left: 50%;
    transform: translateX(-50%);
    opacity: 0;
    pointer-events: none;
    transition: opacity 0.3s ease;
    z-index: 10;
}

.info-tooltip::before {
    content: attr(data-tooltip);
    background-color: var(--text-color);
    color: var(--card-background-color);
    padding: 8px 12px;
    border-radius: 6px;
    font-size: 12px;
    white-space: nowrap;
    bottom: 150%;
}

.info-tooltip::after {
    content: '';
    border-style: solid;
    border-width: 6px 6px 0 6px;
    border-color: var(--text-color) transparent transparent transparent;
    bottom: 150%;
    margin-bottom: -6px;
}

.info-tooltip:hover::before, .info-tooltip:hover::after {
    opacity: 1;
}

.main-content {
    display: grid;
    grid-template-columns: 1fr;
    gap: 24px;
}

footer {
    padding: 1rem 0; /* Reduced padding */
    text-align: center;
    font-size: 14px;
    color: var(--helper-text-color);
}

footer a {
    color: var(--primary-color-start);
    text-decoration: none;
    font-weight: 500;
    transition: color 0.2s ease;
}

footer a:hover {
    color: var(--primary-color-end);
    text-decoration: underline;
}

@media (min-width: 992px) {
    .main-content {
        grid-template-columns: 1fr 1fr;
    }

    .qr-card {
        position: sticky;
        top: 40px;
    }
}