/**
 * 나도 먹고 있어, 정신과약 - Design System Theme Tokens & Global Base
 * Specification directly aligned with Design.md
 */

:root {
  /* Surface & Background Colors */
  --bg-base: #12111F;              /* 앱 전체 최하단 배경 (Deep Midnight) */
  --bg-surface: #1D1B2E;           /* 기본 카드 배경 (피드 카드, 입력 폼) */
  --bg-surface-elevated: #25233D;  /* 모달, 팝업, 활성화된 카드 배경 */
  --bg-surface-active: #2D284C;    /* 활성화된 복약 시간대 포커스 배경 */
  --bg-input: #171526;             /* 인풋 필드 배경 */
  --bg-overlay: rgba(10, 9, 18, 0.78); /* 모달 백드롭 */

  /* Brand & Accent Colors */
  --color-primary: #6C63FF;        /* 주요 액션 버튼, 브랜드 강조, 탭 인디케이터 */
  --color-primary-hover: #5A50E5;
  --color-primary-light: rgba(108, 99, 255, 0.15);
  --border-focus: #7C4DFF;         /* 입력 활성화 테두리, 포커스 링 */

  /* Semantic Feedback & Tag Colors */
  --color-mint: #7ECFC8;           /* 긍정 감정 태그, 복용 완료, 닉네임 강조 */
  --color-mint-light: rgba(126, 207, 200, 0.15);
  --color-green: #88D8A3;          /* 마음정원 만개 상태, 긍정 반응 프로그레스 */
  --color-green-light: rgba(136, 216, 163, 0.15);
  --color-coral: #FF8FAB;          /* 불편 증상(부작용) 태그, 삭제 버튼 */
  --color-coral-light: rgba(255, 143, 171, 0.15);
  --color-orange: #FFB347;         /* 주의 문구, 휴식 충전기 정원 상태 */
  --color-orange-light: rgba(255, 179, 71, 0.15);

  /* Typography Text Colors */
  --text-primary: #FFFFFF;         /* 헤드라인, 주요 텍스트, 본문 */
  --text-secondary: #A7A6BA;       /* 부가 설명, 날짜, 비활성 라벨 */
  --text-tertiary: #6B6980;        /* 입력 힌트, 면책 고지 문구 */

  /* Borders & Dividers */
  --border-subtle: #2F2C4A;        /* 카드 구분선, 인풋 박스 테두리 */
  --border-medium: #3E3B61;
  --border-active-slot: #7C4DFF;   /* 활성 시간대 슬롯 테두리 */

  /* Spacing Scale */
  --space-xs: 4px;
  --space-sm: 8px;
  --space-md: 12px;
  --space-lg: 16px;
  --space-xl: 20px;
  --space-2xl: 24px;
  --space-3xl: 32px;

  /* Border Radii */
  --radius-xs: 4px;
  --radius-sm: 8px;
  --radius-md: 12px;
  --radius-lg: 16px;
  --radius-xl: 20px;
  --radius-pill: 9999px;

  /* Elevation Shadows */
  --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.25);
  --shadow-md: 0 4px 16px rgba(0, 0, 0, 0.35);
  --shadow-lg: 0 10px 30px rgba(0, 0, 0, 0.5);
  --shadow-glow: 0 0 18px rgba(108, 99, 255, 0.35);
  --shadow-focus: 0 0 0 3px rgba(124, 77, 255, 0.4);

  /* Transitions */
  --transition-fast: 0.15s cubic-bezier(0.4, 0, 0.2, 1);
  --transition-normal: 0.25s cubic-bezier(0.4, 0, 0.2, 1);
  --transition-smooth: 0.35s cubic-bezier(0.16, 1, 0.3, 1);

  /* Typography Settings */
  --font-family-base: -apple-system, BlinkMacSystemFont, "Pretendard Variable", Pretendard, "Segoe UI", Roboto, "Helvetica Neue", sans-serif;
  --font-hero: 700 26px / 1.4 var(--font-family-base);
  --font-h1: 700 20px / 1.4 var(--font-family-base);
  --font-h2: 600 16px / 1.4 var(--font-family-base);
  --font-body: 400 14px / 1.6 var(--font-family-base);
  --font-body-md: 500 14px / 1.6 var(--font-family-base);
  --font-caption: 500 12px / 1.4 var(--font-family-base);
  --font-micro: 700 10px / 1.2 var(--font-family-base);
}

/* Global Reset & Base */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
  -webkit-tap-highlight-color: transparent;
}

html {
  font-size: 16px;
  background-color: var(--bg-base);
  color: var(--text-primary);
  font-family: var(--font-family-base);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  text-rendering: optimizeLegibility;
  scroll-behavior: smooth;
  height: 100%;
}

body {
  min-height: 100%;
  background-color: var(--bg-base);
  color: var(--text-primary);
  font-family: var(--font-family-base);
  font-size: 14px;
  line-height: 1.6;
  overflow-x: hidden;
  word-break: keep-all;
  overflow-wrap: break-word;
}

/* 전역 텍스트 줄바꿈 규칙 추가 (한글 단어 중간 잘림 방지) */
body, button, input, textarea, select, .card-base, .chip, .catalog-card, .symptom-check-btn, .diary-card, .feed-card, .modal-card, .pill-tag, .badge {
  word-break: keep-all;
  overflow-wrap: break-word; /* 긴 영문/URL 방어용 */
}

/* 좁은 버튼 내 텍스트 정렬 보정 및 자연스러운 2줄 바꿈 허용 */
.btn-primary, .btn-ghost, .btn-action {
  white-space: normal; /* text-align: center 와 함께 자연스러운 2줄 바꿈 허용 */
  text-align: center;
  word-break: keep-all;
  overflow-wrap: break-word;
}

/* Accessible Focus Ring */
:focus-visible {
  outline: 2px solid var(--border-focus);
  outline-offset: 2px;
}

/* Dark Custom Scrollbar */
::-webkit-scrollbar {
  width: 6px;
  height: 6px;
}
::-webkit-scrollbar-track {
  background: var(--bg-base);
}
::-webkit-scrollbar-thumb {
  background: var(--border-medium);
  border-radius: var(--radius-pill);
}
::-webkit-scrollbar-thumb:hover {
  background: var(--color-primary);
}
* {
  scrollbar-width: thin;
  scrollbar-color: var(--border-medium) var(--bg-base);
}

/* Typography Utility Classes */
.text-hero {
  font-size: clamp(1.4rem, 4vw, 1.75rem);
  font-weight: 700;
  line-height: 1.35;
  letter-spacing: -0.02em;
}

.text-h1 {
  font-size: 1.25rem;
  font-weight: 700;
  line-height: 1.4;
  letter-spacing: -0.01em;
}

.text-h2 {
  font-size: 1rem;
  font-weight: 600;
  line-height: 1.4;
}

.text-body {
  font-size: 0.875rem;
  line-height: 1.6;
  color: var(--text-primary);
}

.text-secondary {
  color: var(--text-secondary);
}

.text-tertiary {
  color: var(--text-tertiary);
}

.text-caption {
  font-size: 0.75rem;
  font-weight: 500;
  line-height: 1.4;
  color: var(--text-secondary);
}

.text-micro {
  font-size: 0.625rem;
  font-weight: 700;
  letter-spacing: 0.5px;
  text-transform: uppercase;
}

/* Common Interactive Components */
button {
  font-family: inherit;
  font-size: inherit;
  cursor: pointer;
  border: none;
  background: transparent;
  color: inherit;
  transition: transform var(--transition-fast), background-color var(--transition-fast), border-color var(--transition-fast), box-shadow var(--transition-fast);
}

button:active {
  transform: scale(0.97);
}

button:disabled {
  opacity: 0.45;
  cursor: not-allowed;
  transform: none;
}

/* Primary Button */
.btn-primary {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 10px 18px;
  background-color: var(--color-primary);
  color: #ffffff;
  font-weight: 600;
  border-radius: var(--radius-md);
  box-shadow: 0 4px 12px rgba(108, 99, 255, 0.3);
}
.btn-primary:hover:not(:disabled) {
  background-color: var(--color-primary-hover);
  box-shadow: var(--shadow-glow);
}

/* Ghost / Subtle Button */
.btn-ghost {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
  padding: 8px 14px;
  background-color: transparent;
  color: var(--text-secondary);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
}
.btn-ghost:hover:not(:disabled) {
  background-color: var(--bg-surface-elevated);
  color: var(--text-primary);
  border-color: var(--border-medium);
}

/* Icon Button */
.btn-icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 36px;
  height: 36px;
  border-radius: var(--radius-pill);
  background-color: var(--bg-surface-elevated);
  color: var(--text-secondary);
  border: 1px solid var(--border-subtle);
}
.btn-icon:hover {
  background-color: var(--bg-surface-active);
  color: var(--text-primary);
}

/* Card Containers */
.card-base {
  background-color: var(--bg-surface);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  padding: var(--space-lg);
  box-shadow: var(--shadow-sm);
  transition: border-color var(--transition-normal), box-shadow var(--transition-normal);
}
.card-base:hover {
  border-color: var(--border-medium);
}

.card-elevated {
  background-color: var(--bg-surface-elevated);
  border: 1px solid var(--border-medium);
  border-radius: var(--radius-lg);
  padding: var(--space-lg);
  box-shadow: var(--shadow-md);
}

/* Chips & Tags */
.chip {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  padding: 5px 12px;
  border-radius: var(--radius-pill);
  font-size: 0.75rem;
  font-weight: 500;
  border: 1px solid var(--border-subtle);
  background-color: var(--bg-surface);
  color: var(--text-secondary);
  cursor: pointer;
  transition: all var(--transition-fast);
  white-space: nowrap;
  user-select: none;
}

.chip:hover {
  border-color: var(--color-primary);
  color: var(--text-primary);
}

.chip.active {
  background-color: var(--color-primary-light);
  border-color: var(--color-primary);
  color: #FFFFFF;
  font-weight: 600;
}

.chip-mint {
  border-color: rgba(126, 207, 200, 0.35);
  background-color: var(--color-mint-light);
  color: var(--color-mint);
}
.chip-mint.active, .chip-mint:hover {
  background-color: var(--color-mint);
  color: #12111F;
  border-color: var(--color-mint);
  font-weight: 600;
}

.chip-coral {
  border-color: rgba(255, 143, 171, 0.35);
  background-color: var(--color-coral-light);
  color: var(--color-coral);
}
.chip-coral.active, .chip-coral:hover {
  background-color: var(--color-coral);
  color: #12111F;
  border-color: var(--color-coral);
  font-weight: 600;
}

.chip-drug {
  background-color: var(--bg-surface-elevated);
  border-color: var(--border-medium);
  color: #DDDCE6;
}
.chip-drug:hover {
  border-color: var(--color-primary);
  color: #FFFFFF;
}

/* Badges */
.badge-level {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  padding: 3px 8px;
  border-radius: var(--radius-pill);
  font-size: 0.6875rem;
  font-weight: 700;
  background: linear-gradient(135deg, rgba(108, 99, 255, 0.2), rgba(126, 207, 200, 0.2));
  color: var(--color-mint);
  border: 1px solid rgba(126, 207, 200, 0.35);
}

.badge-ad {
  display: inline-flex;
  padding: 2px 6px;
  border-radius: var(--radius-xs);
  font-size: 0.625rem;
  font-weight: 600;
  background-color: var(--bg-surface-elevated);
  color: var(--text-tertiary);
  border: 1px solid var(--border-subtle);
  letter-spacing: 0.5px;
}

/* Input Fields */
input[type="text"],
input[type="search"],
textarea {
  width: 100%;
  background-color: var(--bg-input);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  color: var(--text-primary);
  font-family: inherit;
  font-size: 0.875rem;
  padding: 10px 14px;
  transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
}

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

input:focus,
textarea:focus {
  outline: none;
  border-color: var(--border-focus);
  box-shadow: var(--shadow-focus);
}

/* Smooth Animations */
@keyframes fadeIn {
  from { opacity: 0; }
  to { opacity: 1; }
}

@keyframes slideUp {
  from {
    opacity: 0;
    transform: translateY(20px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@keyframes slideDown {
  from {
    opacity: 0;
    transform: translateY(-20px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@keyframes pulseGlow {
  0%, 100% {
    box-shadow: 0 0 12px rgba(108, 99, 255, 0.2);
  }
  50% {
    box-shadow: 0 0 24px rgba(108, 99, 255, 0.45);
  }
}

.animate-fade-in {
  animation: fadeIn var(--transition-normal) ease-out forwards;
}

.animate-slide-up {
  animation: slideUp var(--transition-smooth) cubic-bezier(0.16, 1, 0.3, 1) forwards;
}