/**
 * =================================================================
 * MYUNGSIM DESIGN TOKENS & SYSTEM FOUNDATION v1.0
 * (c) 2026 Mindflow Lab. All rights reserved.
 * 
 * Calm, Clear, Non-judgmental & Life-oriented Design System
 * 4px Base Grid · Mobile First (390px base) · Accessible & Responsive
 * =================================================================
 */

:root {
  /* -------------------------------------------------------------
   * 1. COLOR TOKENS
   * ----------------------------------------------------------- */
  --warm-ivory: #F7F4EC;         /* 전체 배경 베이스 및 밝은 카드 */
  --myungsim-emerald: #0F6B5B;   /* 명심코칭 대표 브랜드 에메랄드 */
  --myungsim-emerald-dark: #0A493E; /* 딥 에메랄드 호버 상태 */
  --myungsim-emerald-light: #ECFDF5;/* 부드러운 에메랄드 틴트 */
  --deep-navy: #14233B;          /* 주요 텍스트 및 딥 카드 */
  --deep-navy-dark: #0B1524;     /* 가장 깊은 네이비 배경 */
  --soft-gold: #C7A86B;          /* 포인트 골드 및 절제된 테두리 */
  --soft-gold-light: #FDF9F0;    /* 골드 연한 배경 */
  --soft-sage: #DDE8E0;          /* 중립 소프트 세이지 */
  --charcoal: #252A2D;           /* 정갈한 본문 텍스트 차콜 */
  --slate-muted: #64748B;        /* 보조 설명 라벨 텍스트 */
  --slate-light: #F8FAFC;        /* 컨테이너 배경 연그레이 */
  --border-subtle: #E2E8F0;      /* 기본 연한 테두리 */

  /* Semantic Alerts */
  --color-info-bg: #F0F9FF;
  --color-info-text: #0369A1;
  --color-info-border: #BAE6FD;

  --color-warning-bg: #FFFBEB;
  --color-warning-text: #B45309;
  --color-warning-border: #FDE68A;

  --color-error-bg: #FEF2F2;
  --color-error-text: #B91C1C;
  --color-error-border: #FECACA;

  --color-safety-bg: #FDF2F8;     /* 위기 개입 안전 알림 (자극적이지 않은 라즈베리/로즈 톤) */
  --color-safety-text: #9D174D;
  --color-safety-border: #FBCFE8;

  /* -------------------------------------------------------------
   * 2. TYPOGRAPHY TOKENS
   * ----------------------------------------------------------- */
  --font-sans: 'Pretendard', -apple-system, BlinkMacSystemFont, system-ui, Roboto, sans-serif;
  --font-serif: 'Noto Serif KR', 'MaruBuri', Georgia, serif;

  /* Type Scale */
  --font-size-display: clamp(1.75rem, 4vw, 2.25rem); /* 28~36px */
  --line-height-display: 1.25;

  --font-size-h1: clamp(1.35rem, 3vw, 1.65rem);      /* 22~26px */
  --line-height-h1: 1.35;

  --font-size-h2: clamp(1.15rem, 2.5vw, 1.35rem);    /* 18~22px */
  --line-height-h2: 1.4;

  --font-size-h3: 1.05rem;                           /* ~17px */
  --line-height-h3: 1.45;

  --font-size-body-lg: 1rem;                         /* 16px */
  --line-height-body-lg: 1.6;

  --font-size-body: 0.9375rem;                       /* 15px */
  --line-height-body: 1.6;

  --font-size-body-sm: 0.8125rem;                    /* 13px */
  --line-height-body-sm: 1.5;

  --font-size-caption: 0.75rem;                      /* 12px */
  --line-height-caption: 1.4;

  --font-size-btn: 0.875rem;                         /* 14px */
  --line-height-btn: 1.2;

  /* Font Weights */
  --weight-regular: 400;
  --weight-medium: 500;
  --weight-bold: 700;
  --weight-black: 900;

  /* -------------------------------------------------------------
   * 3. SPACING TOKENS (4px Base Grid)
   * ----------------------------------------------------------- */
  --space-1: 4px;
  --space-2: 8px;
  --space-3: 12px;
  --space-4: 16px;
  --space-5: 20px;
  --space-6: 24px;
  --space-8: 32px;
  --space-10: 40px;
  --space-12: 48px;

  /* -------------------------------------------------------------
   * 4. RADIUS TOKENS
   * ----------------------------------------------------------- */
  --radius-sm: 10px;
  --radius-md: 16px;
  --radius-lg: 24px;
  --radius-pill: 9999px;

  /* Component Radius Standard */
  --radius-card: 24px;
  --radius-button: 14px;
  --radius-choice: 16px;
  --radius-chip: 9999px;

  /* -------------------------------------------------------------
   * 5. SHADOW TOKENS (Soft & Calm - No Casino / Tarot Floating)
   * ----------------------------------------------------------- */
  --shadow-subtle: 0 1px 3px rgba(15, 23, 42, 0.04), 0 1px 2px rgba(15, 23, 42, 0.02);
  --shadow-card: 0 4px 14px rgba(15, 23, 42, 0.05), 0 1px 3px rgba(15, 23, 42, 0.03);
  --shadow-modal: 0 12px 32px rgba(15, 23, 42, 0.12), 0 2px 6px rgba(15, 23, 42, 0.04);

  /* -------------------------------------------------------------
   * 6. MOTION & TRANSITION TOKENS
   * ----------------------------------------------------------- */
  --motion-fast: 180ms cubic-bezier(0.16, 1, 0.3, 1);
  --motion-normal: 280ms cubic-bezier(0.16, 1, 0.3, 1);
  --motion-card-flip: 550ms cubic-bezier(0.16, 1, 0.3, 1);

  /* -------------------------------------------------------------
   * 7. LAYOUT & BREAKPOINTS
   * ----------------------------------------------------------- */
  --max-width-mobile: 430px;
  --max-width-content: 600px;
  --max-width-desktop: 1120px;
  --touch-target-min: 44px;
}

/* Base Body Styles */
body {
  font-family: var(--font-sans);
  color: var(--charcoal);
  background-color: var(--slate-light);
  line-height: var(--line-height-body);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

/* Prefers Reduced Motion Support (접근성 보장) */
@media (prefers-reduced-motion: reduce) {
  *,
  ::before,
  ::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
    scroll-behavior: auto !important;
  }
}

/* =================================================================
 * COMPONENT UTILITY CLASSES
 * ================================================================= */

/* 1. BUTTONS (Accessible Min Height: 44px) */
.btn-myungsim {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-2);
  min-height: var(--touch-target-min);
  padding: 0 var(--space-5);
  border-radius: var(--radius-button);
  font-size: var(--font-size-btn);
  font-weight: var(--weight-bold);
  line-height: 1;
  text-decoration: none;
  cursor: pointer;
  transition: background-color var(--motion-fast), border-color var(--motion-fast), transform var(--motion-fast), box-shadow var(--motion-fast);
  border: 1px solid transparent;
  outline-offset: 2px;
}

.btn-myungsim:focus-visible {
  outline: 2px solid var(--myungsim-emerald);
}

.btn-primary {
  background-color: var(--myungsim-emerald);
  color: #FFFFFF;
  box-shadow: var(--shadow-subtle);
}
.btn-primary:hover {
  background-color: var(--myungsim-emerald-dark);
}
.btn-primary:active {
  transform: scale(0.985);
}

.btn-secondary {
  background-color: #FFFFFF;
  color: var(--deep-navy);
  border-color: var(--border-subtle);
  box-shadow: var(--shadow-subtle);
}
.btn-secondary:hover {
  background-color: var(--slate-light);
  border-color: var(--myungsim-emerald);
  color: var(--myungsim-emerald);
}

.btn-ghost {
  background-color: transparent;
  color: var(--slate-muted);
}
.btn-ghost:hover {
  background-color: rgba(15, 23, 42, 0.04);
  color: var(--charcoal);
}

.btn-danger {
  background-color: var(--color-error-bg);
  color: var(--color-error-text);
  border-color: var(--color-error-border);
}
.btn-danger:hover {
  background-color: #FEE2E2;
}

.btn-exit {
  background-color: transparent;
  color: var(--slate-muted);
  font-size: var(--font-size-body-sm);
  min-height: 40px;
}
.btn-exit:hover {
  color: var(--charcoal);
  text-decoration: underline;
}

/* 2. CARDS */
.card-myungsim {
  background-color: #FFFFFF;
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-card);
  box-shadow: var(--shadow-card);
  padding: var(--space-6);
  transition: transform var(--motion-fast), box-shadow var(--motion-fast);
}

.card-warm {
  background-color: var(--warm-ivory);
  border-color: rgba(199, 168, 107, 0.3);
}

.card-navy {
  background-color: var(--deep-navy);
  color: #FFFFFF;
  border-color: rgba(255, 255, 255, 0.1);
}

/* Insight Card Standalone Spec */
.insight-card-standard {
  max-width: 246px;
  min-height: 380px;
  margin: 0 auto;
  border-radius: var(--radius-card);
  border: 1px solid var(--soft-gold);
  background: #FFFFFF;
  box-shadow: var(--shadow-card);
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  padding: var(--space-6);
}

/* 3. CHOICE CARD (Emotion, Body, Urge, 10% Action) */
.choice-card-item {
  display: flex;
  align-items: center;
  justify-content: space-between;
  width: 100%;
  min-height: 48px;
  padding: var(--space-3) var(--space-4);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-choice);
  background-color: #FFFFFF;
  color: var(--charcoal);
  font-size: var(--font-size-body-sm);
  font-weight: var(--weight-medium);
  text-align: left;
  cursor: pointer;
  transition: all var(--motion-fast);
}

.choice-card-item:hover {
  background-color: var(--slate-light);
  border-color: var(--myungsim-emerald);
}

.choice-card-item.is-selected {
  border-color: var(--myungsim-emerald);
  background-color: var(--myungsim-emerald-light);
  color: var(--myungsim-emerald-dark);
  font-weight: var(--weight-bold);
}

.choice-card-item:focus-visible {
  outline: 2px solid var(--myungsim-emerald);
  outline-offset: 2px;
}

/* 4. CHIPS & BADGES */
.chip-myungsim {
  display: inline-flex;
  align-items: center;
  gap: var(--space-1);
  padding: 4px 10px;
  border-radius: var(--radius-chip);
  font-size: var(--font-size-caption);
  font-weight: var(--weight-bold);
  line-height: 1;
}

.chip-category {
  background-color: var(--soft-gold-light);
  color: #92400E;
  border: 1px solid rgba(199, 168, 107, 0.4);
}

.chip-status {
  background-color: var(--myungsim-emerald-light);
  color: var(--myungsim-emerald-dark);
  border: 1px solid rgba(15, 107, 91, 0.25);
}

.chip-private {
  background-color: var(--slate-light);
  color: var(--slate-muted);
  border: 1px solid var(--border-subtle);
}

/* 5. ALERTS */
.alert-myungsim {
  padding: var(--space-4);
  border-radius: var(--radius-md);
  font-size: var(--font-size-body-sm);
  line-height: var(--line-height-body-sm);
  display: flex;
  align-items: flex-start;
  gap: var(--space-3);
}

.alert-info {
  background-color: var(--color-info-bg);
  color: var(--color-info-text);
  border: 1px solid var(--color-info-border);
}

.alert-warning {
  background-color: var(--color-warning-bg);
  color: var(--color-warning-text);
  border: 1px solid var(--color-warning-border);
}

.alert-error {
  background-color: var(--color-error-bg);
  color: var(--color-error-text);
  border: 1px solid var(--color-error-border);
}

.alert-safety {
  background-color: var(--color-safety-bg);
  color: var(--color-safety-text);
  border: 1px solid var(--color-safety-border);
}

/* 6. FORM CONTROLS */
.input-myungsim,
.textarea-myungsim {
  width: 100%;
  padding: var(--space-3) var(--space-4);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-sm);
  background-color: #FFFFFF;
  color: var(--charcoal);
  font-family: inherit;
  font-size: var(--font-size-body-sm);
  line-height: var(--line-height-body-sm);
  transition: border-color var(--motion-fast), box-shadow var(--motion-fast);
}

.input-myungsim:focus,
.textarea-myungsim:focus {
  outline: none;
  border-color: var(--myungsim-emerald);
  box-shadow: 0 0 0 3px rgba(15, 107, 91, 0.12);
}

.textarea-myungsim {
  min-height: 96px;
  resize: vertical;
}

/* 7. LAYOUT CONTAINERS */
.container-mobile {
  width: 100%;
  max-width: var(--max-width-content);
  margin-left: auto;
  margin-right: auto;
  padding-left: var(--space-4);
  padding-right: var(--space-4);
}