/* Reset และ Global Styles */
:root {
  /* สีม่วงหลัก */
  --ui-color-purple-50: #F5F5F5;
  --ui-color-purple-100: #F3E8FF;
  --ui-color-purple-200: #E9D5FF;
  --ui-color-purple-300: #D8B4FE;
  --ui-color-purple-400: #C084FC;
  --ui-color-purple-500: #A855F7;
  --ui-color-purple-600: #9333EA;
  --ui-color-purple-700: #7e22ce;
  
  /* สีพื้นฐาน */
  --ui-color-primary: var(--ui-color-purple-600);
  --ui-color-primary-hover: var(--ui-color-purple-700);
  --ui-color-primary-light: var(--ui-color-purple-100);
  --ui-color-background-main: #FFFFFF;
  --ui-color-background-secondary: var(--ui-color-purple-50);
  --ui-color-text-primary: #1E1B4B;
  --ui-color-text-secondary: #6B7280;
  --ui-color-border-default: #E2E8F0;
  
  /* เงา */
  --ui-shadow-small: 0 1px 3px rgba(0,0,0,0.12);
  --ui-shadow-medium: 0 4px 6px -1px rgba(0,0,0,0.1), 0 2px 4px -2px rgba(0,0,0,0.1);
  --ui-shadow-large: 0 10px 15px -3px rgba(0,0,0,0.1), 0 4px 6px -4px rgba(0,0,0,0.1);
  --ui-shadow-focus: 0 0 0 3px rgba(147, 51, 234, 0.2);
  
  /* Transitions */
  --ui-transition-speed-fast: 200ms cubic-bezier(0.4, 0, 0.2, 1);
  --ui-transition-speed-normal: 300ms cubic-bezier(0.4, 0, 0.2, 1);
  
  /* Spacing */
  --ui-spacing-small: 0.5rem;
  --ui-spacing-medium: 1rem;
  --ui-spacing-large: 1.5rem;
  --ui-spacing-xlarge: 2rem;
  
  /* Border Radius */
  --ui-border-radius-small: 0.5rem;
  --ui-border-radius-medium: 0.75rem;
  --ui-border-radius-large: 1rem;
  --ui-border-radius-full: 9999px;
  
  /* Font Sizes */
  --ui-font-size-small: 0.785rem;
  --ui-font-size-medium: 0.9rem;
  --ui-font-size-large: 1.05rem;
  --ui-font-size-xlarge: 1.3rem;
  --ui-font-size-heading: 1.6rem;
}

/* พื้นฐานของเว็บไซต์ */
body {
  padding: 5rem 0.5rem 0rem 0.5rem;
  color: var(--ui-color-text-primary);
  line-height: 1.5;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

main {
 padding-bottom: 20px;
}

/* ส่วนการตั้งค่า */
.settings {
  max-width: 28rem;
  width: 100%;
  margin: 0 auto;
  background: var(--ui-color-background-main);
  padding: var(--ui-spacing-xlarge);
  border-radius: var(--ui-border-radius-large);
  box-shadow: var(--ui-shadow-medium);
  border: 1px solid var(--ui-color-purple-200);
}

h1, h2, h3, h4, h5, h6 {
  font-family: inherit;
}

/* สไตล์หัวข้อ */
h1 {
  font-size: var(--ui-font-size-heading);
  font-weight: 700;
  margin-top: var(--ui-spacing-xlarge);
  color: #13b47f;
}

.h {
  font-size: 1em;
  font-weight: 700;
  margin-top: var(--ui-spacing-xlarge);
  color: #38AA84;
  margin-left: 10px;
}

h5 {
  font-size: 13px;
  margin-bottom: 5px;
  color: #13b47f;
}

/* สไตล์ label */
.setting-item label, label {
  display: block;
  font-size: var(--ui-font-size-small);
  color: var(--ui-color-text-secondary);
  margin-bottom: var(--ui-spacing-small);
  font-weight: 600;
  letter-spacing: 0.025em;
}

section {
  border-radius: 30px !important;
  overflow: hidden !important;
  
}

.m5 {
  margin-bottom: 3px;
}

/* สไตล์ select และ button */
.setting-item select,
#language-button, .buttons {
  width: 100%;
  padding: var(--ui-spacing-medium) var(--ui-spacing-large);
  font-size: var(--ui-font-size-small);
  border: none;
  border-radius: 12px;
  background-color: var(--ui-color-background-main);
  color: var(--ui-color-text-primary);
  transition: all var(--ui-transition-speed-fast);
  font-family: inherit;
  outline: none;
  cursor: pointer;
  appearance: none;
  -webkit-tap-highlight-color: transparent;
  display: flex;
  background-position: right 0.75rem center;
  background-repeat: no-repeat;
  background-size: 1.25rem;
  padding-right: 2.5rem;
  user-select: none;
  align-items: center;
}

.setting-item.select, #language-button {
 background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='24' height='24' viewBox='0 0 24 24' fill='none' stroke='%23000000' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpath d='M6 9l6 6 6-6'/%3E%3C/svg%3E");  
}

.buttons {
 display: flex;
 gap: 15px;
}

.buttons:active, .setting-item.select:active, #language-button:active, .buttons.auto-update-toggle:active {
  background-color: #D4E3FF !important;
}

.buttons:hover, .setting-item.select:hover, #language-button:hover, .buttons.auto-update-toggle:hover {
  background-color: #EFF2F8;
}

.buttons svg {
 height: 20px !important;
 width: auto;
 flex-shrink: 0;
 display: block;
 align-items: center;
}

.buttons.tap {
 background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='24' height='24' viewBox='0 0 24 24' fill='none' stroke='%23000000' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpath d='M9 18l6-6-6-6'/%3E%3C/svg%3E");  
}

.buttons.e svg {
  height: 18.5px;
}

.buttons.a svg {
  height: 18.5px;
}

.buttons.buy {
  --buy: #FF0081;
  color: var(--buy);
  position: relative;
  overflow: hidden;
  -webkit-tap-highlight-color: transparent;
  user-select: none;
  border: none;
}

.buttons.buy.tap {
  background-image: 
    url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='24' height='24' viewBox='0 0 24 24' fill='none' stroke='%23FF0081' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpath d='M9 18l6-6-6-6'/%3E%3C/svg%3E");
}

.buttons.buy svg {
  stroke: var(--buy);
}

.b2 {
  border-radius: 25px !important;
}

/* Language Selector Styles */
#language-selector-container {
  position: relative;
}

.scroll-lock {
  touch-action: none;
}

#language-overlay {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: rgba(0, 0, 0, 0.5);
  opacity: 0;
  transition: opacity 300ms ease;
  z-index: 9998;
  display: none;
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
}

#language-overlay.fade-in {
  opacity: 1;
}

#language-overlay.fade-out {
  opacity: 0;
}

#language-dropdown {
  position: fixed;
  top: 50%;
  left: 50%;
  width: 85%;
  max-height: 60%;
  transform: translate(-50%, -50%) scale(1);
  background: white;
  padding: 25px;
  border-radius: 25px;
  box-shadow: 0 0px 15px rgba(0, 0, 0, 0.2);
  opacity: 0;
  transition: opacity 300ms ease;
  z-index: 9999;
  display: none;
  overflow-y: auto;
}

#language-dropdown.fade-in {
  opacity: 1;
  transform: translate(-50%, -50%) scale(1);
}

#language-dropdown.fade-out {
  opacity: 0;
  transform: translate(-50%, -50%) scale(1);
}

.language-option {
  width: 100%;
  padding: var(--ui-spacing-medium) var(--ui-spacing-large);
  margin-bottom: var(--ui-spacing-small);
  border-radius: 20px;
  font-size: var(--ui-font-size-small);
  font-weight: 500;
  color: var(--ui-color-text-primary);
  background-color: transparent;
  transition: all var(--ui-transition-speed-fast);
  cursor: pointer;
  border: 1px solid rgba(255, 255, 255, 0);
  text-align: left;
  -webkit-tap-highlight-color: transparent;
  user-select: none;
}

.language-option:hover {
  border-color: #00FFAA;
}

.language-error {
  position: fixed;
  top: 20px;
  right: 20px;
  background-color: #ff4444;
  color: white;
  padding: 10px 20px;
  border-radius: 4px;
  z-index: 10000;
  opacity: 0;
  transform: translateX(20px);
  transition: all 0.3s ease;
}

.language-error.show {
  opacity: 1;
  transform: translateX(0);
}

.language-error.hide {
  opacity: 0;
  transform: translateX(20px);
}

/* Responsive Design */
@media (max-width: 640px) {
  body {
    padding-top: 4rem;
  }
  
  .settings {
    padding: var(--ui-spacing-large);
  }
  
  h1 {
    font-size: var(--ui-font-size-xlarge);
  }
}

@media (min-width: 768px) {
  #language-dropdown {
    width: 80%;
  }
}

@media (min-width: 1024px) {
  #language-dropdown {
    width: 70%;
  }
  
  .language-option {
    font-size: var(--ui-font-size-medium);
  }
}

@media (min-width: 1280px) {
  .settings {
    max-width: 32rem;
  }
  
  #language-dropdown {
    width: 60%;
  }
}

@media (min-width: 1536px) {
  .settings {
    max-width: 36rem;
  }
  
  #language-dropdown {
    width: 50%;
  }
}

/* Print Styles */
@media print {
  body {
    background: none;
    padding: 0;
  }
  
  .settings {
    box-shadow: none;
    border: 1px solid #000;
  }
}