:root {
  /* Color tokens */
  --color-bg-main: #eaebee;
  --color-bg-card: #fff;
  --color-border-main: #eaebee;
  --color-border-input: #d1d3da;
  --color-text-main: #2b2d35;
  --color-text-secondary: #7e8397;
  --color-primary: #0439fb;
  --color-btn-text: #fff;
  --color-border-hover: #d1d3da;
  --color-border-selected: #1a1b21;
  --color-bg-hover: rgba(234,235,238,0.5);

  /* Spacing tokens */
  --space-xs: 2px;
  --space-sm: 4px;
  --space-md: 8px;
  --space-lg: 12px;
  --space-xl: 16px;
  --space-2xl: 20px;
  --space-3xl: 24px;
  --space-4xl: 29px;

  /* Border radius tokens */
  --radius-md: 12px;
  --radius-lg: 20px;
  --radius-sm: 8px;
  --radius-xs: 4px;
  --radius-xl: 24px;

  /* Font weight tokens */
  --font-weight-normal: 400;
  --font-weight-medium: 500;
  --font-weight-semibold: 600;

  /* Font size tokens */
  --font-size-xs: 14px;
  --font-size-sm: 16px;
  --font-size-md: 20px;
}

body {
  margin: 0;
  padding: 0;
  font-family: 'Inter', Arial, sans-serif;
  background: var(--color-bg-main);
  min-height: 100vh;
}

.app-bg {
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 100vh;
  background: var(--color-bg-main);
}

.main-container {
  background: var(--color-bg-card);
  border-radius: var(--radius-sm);
  box-shadow: 0 1px 2px 0 rgba(0,0,0,0.05);
  border: 1px solid var(--color-border-main);
  padding: var(--space-3xl);
  width: 448px;
  display: flex;
  flex-direction: column;
  gap: var(--space-xl);
}

.header h1 {
  font-size: var(--font-size-md);
  font-weight: var(--font-weight-semibold);
  color: var(--color-text-main);
  margin: 0;
}

.subtitle {
  font-size: var(--font-size-xs);
  color: var(--color-text-main);
  margin-top: var(--space-sm);
  font-weight: var(--font-weight-normal);
}

.icon-form {
  display: flex;
  flex-direction: column;
  gap: var(--space-3xl);
}

.form-group {
  display: flex;
  flex-direction: column;
  gap: var(--space-md);
}

.form-group label {
  font-size: var(--font-size-sm);
  font-weight: var(--font-weight-medium);
  color: var(--color-text-main);
}

.input-row {
  display: flex;
  align-items: center;
  gap: var(--space-md);
}

input[type="text"] {
  width: 361px;
  height: 48px;
  border-radius: var(--radius-sm);
  border: 1px solid var(--color-border-input);
  padding: 0 var(--space-xl);
  font-size: var(--font-size-sm);
  color: var(--color-text-main);
  background: var(--color-bg-card);
  outline: none;
  box-sizing: border-box;
}

input[type="text"]:disabled {
  background: var(--color-bg-card);
  color: var(--color-text-secondary);
}

.input-icon {
  width: 32px;
  height: 32px;
}

.input-icon-div {
    width: 48px;
    height: 48px;
    border-radius: var(--radius-sm);
    display: flex;
    align-items: center;
    justify-content: center;
    border: 1px solid var(--color-border-input);
    background: var(--color-bg-card);
    object-fit: contain;
    box-sizing: border-box;
  }

.input-hint {
  font-size: var(--font-size-xs);
  color: var(--color-text-secondary);
  margin-left: var(--space-xs);
}

.option-row {
  display: flex;
  flex-direction: row;
  margin-top: var(--space-sm);
  justify-content: space-between;
  width: 448px;
}

.option-card {
  background: var(--color-bg-card);
  border-radius: var(--radius-sm);
  border: 1.5px solid var(--color-border-main);
  width: 80px;
  height: 80px;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: var(--space-md);
  box-shadow: 0 1px 2px 0 rgba(0,0,0,0.03);
  transition: border-color 0.15s, background 0.15s;
  cursor: pointer;
}

.option-card:hover {
  background: var(--color-bg-hover);
  border-color: var(--color-border-hover);
}

.option-card.selected {
  background: var(--color-bg-card);
  border-color: var(--color-border-selected);
}

.option-card img {
  width: 40px;
  height: 40px;
  object-fit: contain;
}

.option-card span {
  font-size: var(--font-size-xs);
  color: var(--color-text-main);
  font-weight: var(--font-weight-medium);
}

.copy-btn {
  width: 100%;
  height: 48px;
  background: var(--color-primary);
  color: var(--color-btn-text);
  border: none;
  border-radius: var(--radius-sm);
  font-size: var(--font-size-sm);
  font-weight: var(--font-weight-medium);
  cursor: not-allowed;
  box-shadow: 0 1px 2px 0 rgba(0,0,0,0.05);
  margin-top: var(--space-md);
} 

.toast {
  display: none;
  position: fixed;
  left: 50%;
  bottom: 40px;
  transform: translateX(-50%);
  background: var(--color-primary);
  color: #fff;
  padding: 12px 24px;
  border-radius: var(--radius-md);
  font-size: 16px;
  font-weight: 500;
  box-shadow: 0 2px 8px rgba(0,0,0,0.08);
  z-index: 1000;
  opacity: 0;
  transition: opacity 0.3s;
}
.toast.show {
  display: block;
  opacity: 1;
}
.icon-dropdown {
  position: absolute;
  left: 0;
  top: 56px;
  width: 361px;
  background: #fff;
  border: 1px solid var(--color-border-input);
  border-radius: var(--radius-sm);
  box-shadow: 0 2px 8px rgba(0,0,0,0.08);
  z-index: 10;
  max-height: 220px;
  overflow-y: auto;
  font-size: 16px;
  padding: 0;
  margin: 0;
}
.icon-dropdown ul {
  list-style: none;
  margin: 0;
  padding: 0;
}
.icon-dropdown li {
  padding: 10px 16px;
  cursor: pointer;
  transition: background 0.15s;
}
.icon-dropdown li:hover {
  background: var(--color-bg-hover);
}
.credit-line {
  margin-top: 0px;
  text-align: center;
  font-size: 14px;
  color: #7e8397;
}
.credit-link {
  color: #0439fb;
  text-decoration: none;
  font-weight: 500;
}