/* ============================================================
   PetPro 디자인 시스템 - CSS 변수, 리셋, 유틸리티
   ============================================================ */

/* Google Fonts */
@import url("https://fonts.googleapis.com/css2?family=Noto+Sans+KR:wght@300;400;500;600;700;800;900&display=swap");

/* ---- CSS 변수 ---- */
:root {
  /* 컬러 팔레트 */
  --color-primary: #ff6b35;
  --color-primary-light: #ff8f65;
  --color-primary-dark: #e55a25;
  --color-primary-bg: rgba(255, 107, 53, 0.08);

  --color-secondary: #4a0e4e;
  --color-secondary-light: #6b2d6e;
  --color-secondary-dark: #350a38;

  --color-accent: #ffb84d;
  --color-accent-light: #ffd08a;

  --color-success: #22c55e;
  --color-success-bg: rgba(34, 197, 94, 0.1);
  --color-warning: #f59e0b;
  --color-warning-bg: rgba(245, 158, 11, 0.1);
  --color-danger: #ef4444;
  --color-danger-bg: rgba(239, 68, 68, 0.1);
  --color-info: #3b82f6;
  --color-info-bg: rgba(59, 130, 246, 0.1);

  /* 배경 */
  --bg-primary: #ffffff;
  --bg-secondary: #f8f7fc;
  --bg-tertiary: #f1eff6;
  --bg-glass: rgba(255, 255, 255, 0.72);
  --bg-glass-border: rgba(255, 255, 255, 0.3);

  /* 텍스트 */
  --text-primary: #1a1225;
  --text-secondary: #6b6380;
  --text-tertiary: #9b93ae;
  --text-inverse: #ffffff;

  /* 보더 */
  --border-color: #e8e5f0;
  --border-color-light: #f0eef5;

  /* 그림자 */
  --shadow-sm: 0 1px 3px rgba(74, 14, 78, 0.06);
  --shadow-md: 0 4px 12px rgba(74, 14, 78, 0.08);
  --shadow-lg: 0 8px 30px rgba(74, 14, 78, 0.12);
  --shadow-xl: 0 16px 50px rgba(74, 14, 78, 0.16);
  --shadow-glow: 0 0 20px rgba(255, 107, 53, 0.3);

  /* 라운드 */
  --radius-sm: 8px;
  --radius-md: 12px;
  --radius-lg: 16px;
  --radius-xl: 24px;
  --radius-full: 9999px;

  /* 간격 */
  --space-xs: 4px;
  --space-sm: 8px;
  --space-md: 16px;
  --space-lg: 24px;
  --space-xl: 32px;
  --space-2xl: 48px;
  --space-3xl: 64px;

  /* 폰트 */
  --font-family: "Noto Sans KR", -apple-system, BlinkMacSystemFont, sans-serif;
  --font-size-xs: 0.75rem;
  --font-size-sm: 0.875rem;
  --font-size-base: 1rem;
  --font-size-lg: 1.125rem;
  --font-size-xl: 1.25rem;
  --font-size-2xl: 1.5rem;
  --font-size-3xl: 2rem;
  --font-size-4xl: 2.5rem;
  --font-size-5xl: 3.5rem;

  /* 트랜지션 */
  --transition-fast: 150ms ease;
  --transition-normal: 250ms ease;
  --transition-slow: 400ms cubic-bezier(0.4, 0, 0.2, 1);

  /* 레이아웃 */
  --header-height: 64px;
  --sidebar-width: 260px;
  --max-width: 1280px;
}

/* 다크모드 */
[data-theme="dark"] {
  --bg-primary: #0f0a18;
  --bg-secondary: #1a1225;
  --bg-tertiary: #241c32;
  --bg-glass: rgba(15, 10, 24, 0.82);
  --bg-glass-border: rgba(255, 255, 255, 0.08);

  --text-primary: #f0ecf5;
  --text-secondary: #a99bbe;
  --text-tertiary: #6b5d80;

  --border-color: #2e2540;
  --border-color-light: #241c32;

  --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.2);
  --shadow-md: 0 4px 12px rgba(0, 0, 0, 0.3);
  --shadow-lg: 0 8px 30px rgba(0, 0, 0, 0.35);
  --shadow-xl: 0 16px 50px rgba(0, 0, 0, 0.4);
}

/* ---- 리셋 ---- */
*,
*::before,
*::after {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
  font-size: 16px;
}

body {
  font-family: var(--font-family);
  background: var(--bg-secondary);
  color: var(--text-primary);
  line-height: 1.6;
  min-height: 100vh;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  overflow-x: hidden;
}

a {
  color: inherit;
  text-decoration: none;
}

ul,
ol {
  list-style: none;
}

img {
  max-width: 100%;
  display: block;
}

button {
  font-family: inherit;
  cursor: pointer;
  border: none;
  background: none;
  font-size: inherit;
}

input,
select,
textarea {
  font-family: inherit;
  font-size: inherit;
  border: none;
  outline: none;
  background: none;
}

/* ---- 애니메이션 키프레임 ---- */
@keyframes fadeIn {
  from {
    opacity: 0;
    transform: translateY(12px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@keyframes fadeInUp {
  from {
    opacity: 0;
    transform: translateY(30px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@keyframes slideInRight {
  from {
    opacity: 0;
    transform: translateX(30px);
  }
  to {
    opacity: 1;
    transform: translateX(0);
  }
}

@keyframes slideInLeft {
  from {
    opacity: 0;
    transform: translateX(-30px);
  }
  to {
    opacity: 1;
    transform: translateX(0);
  }
}

@keyframes scaleIn {
  from {
    opacity: 0;
    transform: scale(0.92);
  }
  to {
    opacity: 1;
    transform: scale(1);
  }
}

@keyframes pulse {
  0%,
  100% {
    transform: scale(1);
  }
  50% {
    transform: scale(1.05);
  }
}

@keyframes float {
  0%,
  100% {
    transform: translateY(0);
  }
  50% {
    transform: translateY(-8px);
  }
}

@keyframes shimmer {
  0% {
    background-position: -200% center;
  }
  100% {
    background-position: 200% center;
  }
}

@keyframes spin {
  from {
    transform: rotate(0deg);
  }
  to {
    transform: rotate(360deg);
  }
}

/* ---- 유틸리티 클래스 ---- */
.container {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 var(--space-lg);
}
.flex {
  display: flex;
}
.flex-col {
  display: flex;
  flex-direction: column;
}
.flex-center {
  display: flex;
  align-items: center;
  justify-content: center;
}
.flex-between {
  display: flex;
  align-items: center;
  justify-content: space-between;
}
.flex-wrap {
  flex-wrap: wrap;
}
.gap-xs {
  gap: var(--space-xs);
}
.gap-sm {
  gap: var(--space-sm);
}
.gap-md {
  gap: var(--space-md);
}
.gap-lg {
  gap: var(--space-lg);
}
.gap-xl {
  gap: var(--space-xl);
}

.text-center {
  text-align: center;
}
.text-sm {
  font-size: var(--font-size-sm);
}
.text-base {
  font-size: var(--font-size-base);
}
.text-lg {
  font-size: var(--font-size-lg);
}
.text-xl {
  font-size: var(--font-size-xl);
}
.text-2xl {
  font-size: var(--font-size-2xl);
}
.text-secondary {
  color: var(--text-secondary);
}
.text-tertiary {
  color: var(--text-tertiary);
}
.font-medium {
  font-weight: 500;
}
.font-semibold {
  font-weight: 600;
}
.font-bold {
  font-weight: 700;
}

.w-full {
  width: 100%;
}
.h-full {
  height: 100%;
}
.relative {
  position: relative;
}
.overflow-hidden {
  overflow: hidden;
}

.grid {
  display: grid;
}
.grid-2 {
  grid-template-columns: repeat(2, 1fr);
}
.grid-3 {
  grid-template-columns: repeat(3, 1fr);
}
.grid-4 {
  grid-template-columns: repeat(4, 1fr);
}

.animate-fadeIn {
  animation: fadeIn 0.5s ease forwards;
}
.animate-fadeInUp {
  animation: fadeInUp 0.6s ease forwards;
}
.animate-slideInRight {
  animation: slideInRight 0.5s ease forwards;
}
.animate-scaleIn {
  animation: scaleIn 0.4s ease forwards;
}

.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

/* 스크롤바 스타일 */
::-webkit-scrollbar {
  width: 6px;
}
::-webkit-scrollbar-track {
  background: transparent;
}
::-webkit-scrollbar-thumb {
  background: var(--border-color);
  border-radius: var(--radius-full);
}
::-webkit-scrollbar-thumb:hover {
  background: var(--text-tertiary);
}

/* 반응형 */
@media (max-width: 768px) {
  .grid-2,
  .grid-3,
  .grid-4 {
    grid-template-columns: 1fr;
  }
  .container {
    padding: 0 var(--space-md);
  }
  :root {
    --header-height: 56px;
  }
}

@media (min-width: 769px) and (max-width: 1024px) {
  .grid-3 {
    grid-template-columns: repeat(2, 1fr);
  }
  .grid-4 {
    grid-template-columns: repeat(2, 1fr);
  }
}