@import url('https://fonts.googleapis.com/css2?family=Sarabun:wght@300;400;500;600;700&display=swap');

:root {
  --font-sans: 'Sarabun', sans-serif;
  --color-primary: #059669;
  --color-primary-hover: #047857;
  --color-bg-base: #f8fafc;
  --color-surface: #ffffff;
  --color-border: #e2e8f0;
  --color-text-main: #1e293b;
  --color-text-muted: #64748b;
}

.dark {
  --color-primary: #10b981;
  --color-primary-hover: #059669;
  --color-bg-base: #0f172a;
  --color-surface: #1e293b;
  --color-border: #334155;
  --color-text-main: #f1f5f9;
  --color-text-muted: #94a3b8;
}

body {
  font-family: var(--font-sans);
  -webkit-tap-highlight-color: transparent;
}

.rem-input {
  width: 100%;
  padding: 0.875rem;
  border-radius: 0.75rem;
  border: 1px solid #e2e8f0;
  outline: none;
  font-size: 0.9375rem;
  resize: none;
  background-color: #ffffff;
  color: #1e293b;
  transition: border-color 0.2s, box-shadow 0.2s;
}

.dark .rem-input {
  border-color: #334155;
  background-color: #0f172a;
  color: #f1f5f9;
}

.rem-input:focus {
  border-color: #059669;
  box-shadow: 0 0 0 2px rgba(5, 150, 105, 0.15);
}

.dark .rem-input:focus {
  border-color: #10b981;
  box-shadow: 0 0 0 2px rgba(16, 185, 129, 0.2);
}

.bubble-textarea {
  width: 100%;
  background: transparent;
  border: none;
  outline: none;
  resize: none;
  overflow: hidden;
  line-height: 1.6;
}