/* ========================================
   CSS Variables (カスタムプロパティ)
   ======================================== */
:root {
  /* Colors */
  --color-primary-start: #7B79FD;
  --color-primary-end: #AC79FF;
  --color-white: #fff;
  --color-black: #000;
  --color-border: #1e293b;
  --color-text-light: #d1d5db;
  --color-text-muted: #94a3b8;
  --color-text-placeholder: #64748b;
  --color-bg-overlay: rgba(0, 0, 0, 0.5);
  --color-bg-mic: rgba(255, 255, 255, 0.47);
  --color-canvas-bg: #111927;
  --color-shadow: rgba(0, 0, 0, 0.1);
  
  /* Gradients */
  --gradient-primary: linear-gradient(90deg, var(--color-primary-start) 0%, var(--color-primary-end) 100%);
  
  /* Spacing */
  --spacing-xs: 8px;
  --spacing-sm: 16px;
  --spacing-md: 24px;
  --spacing-lg: 32px;
  
  /* Border Radius */
  --radius-sm: 5px;
  --radius-md: 12px;
  --radius-lg: 18px;
  --radius-full: 1000px;
  
  /* Transitions */
  --transition-fast: 0.2s;
  
  /* Sizes */
  --max-width: 1000px;
  --video-aspect: 3/4;
}

/* ========================================
   Base Styles
   ======================================== */
* {
  box-sizing: border-box;
}

body {
  margin: 0;
  font-family: sans-serif;
}

main {
  margin: 0 auto;
  max-width: var(--max-width);
  padding: var(--spacing-md) var(--spacing-sm) 0 var(--spacing-sm);
}

/* ========================================
   Layout
   ======================================== */
.container-flex {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-md);
}

/* ========================================
   Buttons
   ======================================== */
.button-wrap {
  text-align: center;
  height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
}

.button-wrap button:disabled {
  display: none;
}

.button-wrap.processing {
  height: auto;
}

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
  border-radius: var(--radius-full);
  font-weight: bold;
  padding: var(--spacing-xs) 18px;
  border: none;
  transition: background var(--transition-fast);
  cursor: pointer;
  background: var(--gradient-primary);
  color: var(--color-white);
}

.loading-spinner {
  display: inline-block;
  width: 26px;
  height: 26px;
  border: 2px solid #7b79fd;
  border-top: 2px solid transparent;
  border-radius: 50%;
  animation: spin 1s linear infinite;
}

.button-bar {
  width: 100%;
}

.button:disabled {
  opacity: 0.4;
  pointer-events: none;
}

/* ========================================
   Card Component
   ======================================== */
.card {
  border-radius: var(--radius-lg);
  border: 1px solid var(--color-border);
  box-shadow: 0 2px 14px var(--color-shadow);
  overflow: hidden;
  margin-bottom: var(--spacing-md);
}

.card-header {
  padding: 20px var(--spacing-md) var(--spacing-sm) var(--spacing-md);
  border-bottom: 1px solid var(--color-border);
}

.card-header h3 {
  margin: 0;
}

.card-body {
  padding: 20px var(--spacing-md);
}

/* ========================================
   Customer Info
   ======================================== */
#customerInfo {
  position: absolute;
  left: 15px;
  right: 15px;
  bottom: 5px;
}

#customerInfo .card {
  background: var(--color-white);
}

/* ========================================
   Flex Utility
   ======================================== */
.flex {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: var(--spacing-xs);
}

/* ========================================
   Video / Avatar Display
   ======================================== */
.video-wrap {
  background: var(--color-black);
  position: relative;
  width: 100%;
  aspect-ratio: var(--video-aspect);
  min-height: 240px;
  display: flex;
  align-items: center;
  justify-content: center;
}

.video-element,
.canvas-element {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: 40%;
  background: var(--color-black);
}

/* ========================================
   Options Display
   ======================================== */
.options {
  position: absolute;
  bottom: 0;
  display: flex;
  width: 100%;
  justify-content: space-evenly;
  flex-wrap: wrap;
}

.options p {
  display: inline-block;
  background: #ffffff66;
  min-width: 30%;
  text-align: center;
  padding: 30px;
  border-radius: var(--radius-sm);
  align-content: center;
}

.options img {
  width: 100%;
}

/* ========================================
   Form Elements
   ======================================== */
textarea {
  width: 100%;
  border-radius: var(--radius-md);
  border: none;
  color: var(--color-text-light);
  padding: var(--radius-md) var(--spacing-sm);
  outline: none;
  margin: 0.5em 0 0 0;
  min-height: 110px;
  font-size: 1rem;
}

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

label {
  font-size: 1rem;
  color: #e5e7eb;
  display: block;
  margin-top: var(--spacing-xs);
  margin-bottom: 4px;
}

.small-text {
  font-size: 0.85rem;
  color: var(--color-text-muted);
}

/* ========================================
   OCR Section
   ======================================== */
.ocr-section {
  margin-top: var(--spacing-md);
}

.ocr-grid {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-xs);
}

@media (min-width: 640px) {
  .ocr-grid {
    flex-direction: row;
  }
}

.ocr-preview,
.ocr-canvas-wrap {
  border-radius: var(--radius-md);
  overflow: hidden;
  background: var(--color-black);
  aspect-ratio: 16/9;
  flex: 1;
  min-width: 0;
  min-height: 128px;
  display: flex;
  align-items: center;
  justify-content: center;
}

.ocr-canvas {
  position: relative;
}

.ocr-canvas.loading {
  opacity: 0.5;
}

.ocr-canvas.loading::before {
  content: '';
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  width: 50px;
  height: 50px;
  border: 5px solid var(--color-white);
  border-top: 5px solid transparent;
  border-radius: 50%;
  animation: spin 1s linear infinite;
}

@keyframes spin {
  from {
    transform: translate(-50%, -50%) rotate(0deg);
  }
  to {
    transform: translate(-50%, -50%) rotate(360deg);
  }
}

.ocr-canvas-wrap {
  background: var(--color-canvas-bg);
}

.ocr-btns {
  display: flex;
  flex-wrap: wrap;
  gap: var(--spacing-xs);
  margin-top: var(--radius-md);
}

/* ========================================
   Modal
   ======================================== */
.modal-overlay {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: var(--color-bg-overlay);
  z-index: 100;
}

.modal {
  position: fixed;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  width: 90%;
  max-width: 600px;
  z-index: 110;
  background: var(--color-white);
  border-radius: var(--radius-lg);
  padding: var(--spacing-md);
}

/* ========================================
   Microphone View
   ======================================== */
#micView {
  position: absolute;
  height: 150px;
  top: 82px;
  left: 0;
  right: 0;
  background: var(--color-bg-mic);
}

#micView .flex {
  flex-flow: column;
}

#micView p {
  font-weight: bold;
  padding-top: 20px;
}

/* Active Microphone Indicator */
.active-mic {
  display: inline-block;
  background: var(--gradient-primary);
  color: var(--color-white);
  padding: 10px;
  border-radius: var(--radius-full);
  width: 44px;
  height: 44px;
  text-align: center;
  animation: neon 10s infinite;
}

/* ========================================
   Neon Animation
   ======================================== */
@keyframes neon {
  0% {
    box-shadow:
      /* 中心部分の白く強い光 */
      0 0 8px var(--color-white),
      0 0 12px var(--color-white),
      /* 外側のカラーグロー */
      -2px -2px 20px var(--color-primary-start),
      2px 2px 20px #ff07ee;
  }
  12.5% {
    box-shadow:
      0 0 8px var(--color-white),
      0 0 12px var(--color-white),
      0px -2px 15px var(--color-primary-start),
      0px 2px 15px #d300c5;
  }
  25% {
    box-shadow:
      0 0 8px var(--color-white),
      0 0 12px var(--color-white),
      2px -2px 20px var(--color-primary-start),
      -2px 2px 20px var(--color-primary-end);
  }
  37.5% {
    box-shadow:
      0 0 8px var(--color-white),
      0 0 12px var(--color-white),
      2px 0px 15px var(--color-primary-start),
      -2px 0px 15px #d300c5;
  }
  50% {
    box-shadow:
      0 0 8px var(--color-white),
      0 0 12px var(--color-white),
      2px 2px 20px var(--color-primary-start),
      -2px -2px 20px #ff95c1;
  }
  62.5% {
    box-shadow:
      0 0 8px var(--color-white),
      0 0 12px var(--color-white),
      0px 2px 15px var(--color-primary-start),
      0px -2px 15px #d300c5;
  }
  75% {
    box-shadow:
      0 0 8px var(--color-white),
      0 0 12px var(--color-white),
      -2px 2px 20px var(--color-primary-start),
      2px -2px 20px var(--color-primary-end);
  }
  87.5% {
    box-shadow:
      0 0 8px var(--color-white),
      0 0 12px var(--color-white),
      -2px 0px 15px var(--color-primary-start),
      2px 0px 15px #d300c5;
  }
  100% {
    box-shadow:
      0 0 8px var(--color-white),
      0 0 12px var(--color-white),
      -2px -2px 20px var(--color-primary-start),
      2px 2px 20px #ff07ee;
  }
}