# CinePrime - CSS 디자인 시스템

/* ===== CSS 변수 정의 ===== */
:root {
  --primary: #FFD700;
  --primary-dark: #E6C200;
  --primary-light: #FFF44F;
  --secondary: #1a1a1a;
  --secondary-light: #2d2d2d;
  --accent: #FF6B6B;
  --accent-light: #FF8787;
  --bg: #0f0f0f;
  --bg-secondary: #1a1a1a;
  --text: #ffffff;
  --text-secondary: #b0b0b0;
  --text-tertiary: #808080;
  --border: #333333;
  --border-light: #404040;
  --shadow: 0 4px 20px rgba(0, 0, 0, 0.3);
  --shadow-lg: 0 12px 40px rgba(0, 0, 0, 0.5);
  --shadow-xl: 0 20px 60px rgba(0, 0, 0, 0.7);
  --shadow-hover: 0 8px 30px rgba(255, 215, 0, 0.15);
  --radius-sm: 4px;
  --radius-md: 8px;
  --radius-lg: 12px;
  --radius-xl: 16px;
  --radius-full: 9999px;
  --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  --transition-fast: all 0.15s ease;
  --transition-slow: all 0.5s ease;
}

/* ===== 리셋 & 기본 스타일 ===== */
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

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

body {
  background-color: var(--bg);
  color: var(--text);
  font-family: 'Segoe UI', 'Roboto', 'Helvetica Neue', sans-serif;
  line-height: 1.6;
  letter-spacing: 0.3px;
  overflow-x: hidden;
}

/* ===== 타이포그래피 ===== */
h1 {
  font-size: 3.5rem;
  font-weight: 800;
  letter-spacing: -1.5px;
  line-height: 1.1;
  margin-bottom: 1.5rem;
}

h2 {
  font-size: 2.5rem;
  font-weight: 700;
  letter-spacing: -0.8px;
  line-height: 1.2;
  margin-bottom: 1.2rem;
}

h3 {
  font-size: 1.75rem;
  font-weight: 700;
  letter-spacing: -0.5px;
  line-height: 1.3;
  margin-bottom: 1rem;
}

h4 {
  font-size: 1.375rem;
  font-weight: 600;
  letter-spacing: -0.3px;
  margin-bottom: 0.8rem;
}

h5 {
  font-size: 1.125rem;
  font-weight: 600;
  margin-bottom: 0.6rem;
}

h6 {
  font-size: 1rem;
  font-weight: 600;
  margin-bottom: 0.5rem;
}

p {
  font-size: 1rem;
  color: var(--text-secondary);
  margin-bottom: 1rem;
}

.text-lg {
  font-size: 1.125rem;
  line-height: 1.7;
}

.text-base {
  font-size: 1rem;
  line-height: 1.6;
}

.text-sm {
  font-size: 0.875rem;
  line-height: 1.5;
}

.text-xs {
  font-size: 0.75rem;
  line-height: 1.4;
}

.caption {
  font-size: 0.75rem;
  color: var(--text-tertiary);
  text-transform: uppercase;
  letter-spacing: 1px;
  font-weight: 600;
}

.text-bold {
  font-weight: 700;
}

.text-semibold {
  font-weight: 600;
}

.text-light {
  font-weight: 400;
}

.text-center {
  text-align: center;
}

.text-left {
  text-align: left;
}

.text-right {
  text-align: right;
}

/* ===== 색상 유틸리티 ===== */
.text-primary {
  color: var(--primary);
}

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

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

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

.bg-primary {
  background-color: var(--primary);
  color: var(--bg);
}

.bg-secondary {
  background-color: var(--secondary);
}

/* ===== 레이아웃 ===== */
.container {
  width: 100%;
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 2rem;
}

.container-sm {
  width: 100%;
  max-width: 800px;
  margin: 0 auto;
  padding: 0 2rem;
}

.container-lg {
  width: 100%;
  max-width: 1400px;
  margin: 0 auto;
  padding: 0 2rem;
}

.section {
  padding: 5rem 0;
}

.section-sm {
  padding: 3rem 0;
}

.section-lg {
  padding: 7rem 0;
}

/* ===== Flexbox 유틸리티 ===== */
.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-start {
  display: flex;
  align-items: center;
  justify-content: flex-start;
}

.flex-end {
  display: flex;
  align-items: center;
  justify-content: flex-end;
}

.flex-wrap {
  flex-wrap: wrap;
}

.flex-1 {
  flex: 1;
}

.gap-1 {
  gap: 0.5rem;
}

.gap-2 {
  gap: 1rem;
}

.gap-3 {
  gap: 1.5rem;
}

.gap-4 {
  gap: 2rem;
}

.gap-5 {
  gap: 2.5rem;
}

.gap-6 {
  gap: 3rem;
}

/* ===== Grid 유틸리티 ===== */
.grid {
  display: grid;
  gap: 2rem;
}

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

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

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

.grid-6 {
  display: grid;
  grid-template-columns: repeat(6, 1fr);
  gap: 1.5rem;
}

/* ===== 마진 패딩 ===== */
.mt-1 { margin-top: 0.5rem; }
.mt-2 { margin-top: 1rem; }
.mt-3 { margin-top: 1.5rem; }
.mt-4 { margin-top: 2rem; }
.mt-5 { margin-top: 2.5rem; }
.mt-6 { margin-top: 3rem; }
.mt-8 { margin-top: 4rem; }
.mt-12 { margin-top: 6rem; }

.mb-1 { margin-bottom: 0.5rem; }
.mb-2 { margin-bottom: 1rem; }
.mb-3 { margin-bottom: 1.5rem; }
.mb-4 { margin-bottom: 2rem; }
.mb-5 { margin-bottom: 2.5rem; }
.mb-6 { margin-bottom: 3rem; }
.mb-8 { margin-bottom: 4rem; }
.mb-12 { margin-bottom: 6rem; }

.my-1 { margin: 0.5rem 0; }
.my-2 { margin: 1rem 0; }
.my-3 { margin: 1.5rem 0; }
.my-4 { margin: 2rem 0; }
.my-5 { margin: 2.5rem 0; }
.my-6 { margin: 3rem 0; }

.mx-1 { margin: 0 0.5rem; }
.mx-2 { margin: 0 1rem; }
.mx-3 { margin: 0 1.5rem; }
.mx-4 { margin: 0 2rem; }

.px-1 { padding: 0 0.5rem; }
.px-2 { padding: 0 1rem; }
.px-3 { padding: 0 1.5rem; }
.px-4 { padding: 0 2rem; }
.px-6 { padding: 0 3rem; }

.py-1 { padding: 0.5rem 0; }
.py-2 { padding: 1rem 0; }
.py-3 { padding: 1.5rem 0; }
.py-4 { padding: 2rem 0; }
.py-6 { padding: 3rem 0; }

.p-2 { padding: 1rem; }
.p-3 { padding: 1.5rem; }
.p-4 { padding: 2rem; }
.p-6 { padding: 3rem; }

/* ===== 버튼 스타일 ===== */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0.875rem 2rem;
  font-size: 1rem;
  font-weight: 600;
  border: none;
  border-radius: var(--radius-lg);
  cursor: pointer;
  text-decoration: none;
  transition: var(--transition);
  letter-spacing: 0.5px;
  white-space: nowrap;
  position: relative;
  overflow: hidden;
}

.btn:disabled {
  opacity: 0.5;
  cursor: not-allowed;
}

.btn-primary {
  background-color: var(--primary);
  color: var(--bg);
  box-shadow: 0 4px 15px rgba(255, 215, 0, 0.2);
}

.btn-primary:hover:not(:disabled) {
  background-color: var(--primary-dark);
  transform: translateY(-2px);
  box-shadow: 0 8px 25px rgba(255, 215, 0, 0.3);
}

.btn-primary:active:not(:disabled) {
  transform: translateY(0);
}

.btn-secondary {
  background-color: var(--secondary-light);
  color: var(--text);
  box-shadow: 0 4px 15px rgba(0, 0, 0, 0.3);
}

.btn-secondary:hover:not(:disabled) {
  background-color: var(--primary);
  color: var(--bg);
  transform: translateY(-2px);
  box-shadow: 0 8px 25px rgba(255, 215, 0, 0.25);
}

.btn-secondary:active:not(:disabled) {
  transform: translateY(0);
}

.btn-outline {
  background-color: transparent;
  color: var(--primary);
  border: 2px solid var(--primary);
}

.btn-outline:hover:not(:disabled) {
  background-color: var(--primary);
  color: var(--bg);
  transform: translateY(-2px);
}

.btn-outline:active:not(:disabled) {
  transform: translateY(0);
}

.btn-ghost {
  background-color: transparent;
  color: var(--text);
  border: 2px solid var(--border);
}

.btn-ghost:hover:not(:disabled) {
  border-color: var(--primary);
  color: var(--primary);
  transform: translateY(-2px);
}

.btn-lg {
  padding: 1.25rem 3rem;
  font-size: 1.125rem;
}

.btn-sm {
  padding: 0.625rem 1.5rem;
  font-size: 0.875rem;
  border-radius: var(--radius-md);
}

.btn-xs {
  padding: 0.5rem 1rem;
  font-size: 0.75rem;
  border-radius: var(--radius-sm);
}

.btn-icon {
  width: 2.5rem;
  height: 2.5rem;
  padding: 0;
  border-radius: 50%;
}

.btn-block {
  width: 100%;
}

/* ===== 카드 스타일 ===== */
.card {
  background-color: var(--secondary);
  border-radius: var(--radius-lg);
  overflow: hidden;
  transition: var(--transition);
  border: 1px solid var(--border);
}

.card:hover {
  transform: translateY(-8px);
  box-shadow: var(--shadow-hover);
}

.card-header {
  padding: 1.5rem;
  border-bottom: 1px solid var(--border);
}

.card-body {
  padding: 1.5rem;
}

.card-footer {
  padding: 1.5rem;
  border-top: 1px solid var(--border);
  background-color: rgba(255, 215, 0, 0.02);
}

.card-image {
  width: 100%;
  height: 200px;
  object-fit: cover;
  display: block;
}

.card-link {
  text-decoration: none;
  color: inherit;
  display: block;
}

.card-link:hover {
  color: var(--primary);
}

/* ===== 배지 스타일 ===== */
.badge {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0.375rem 0.875rem;
  border-radius: var(--radius-full);
  font-size: 0.75rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.badge-primary {
  background-color: var(--primary);
  color: var(--bg);
}

.badge-secondary {
  background-color: var(--secondary-light);
  color: var(--text);
  border: 1px solid var(--border);
}

.badge-new {
  background-color: var(--primary);
  color: var(--bg);
}

.badge-sale {
  background-color: var(--accent);
  color: white;
}

.badge-hot {
  background-color: linear-gradient(135deg, var(--accent), var(--primary));
  color: white;
}

.badge-success {
  background-color: #22c55e;
  color: white;
}

.badge-warning {
  background-color: #f59e0b;
  color: white;
}

.badge-danger {
  background-color: #ef4444;
  color: white;
}

.badge-info {
  background-color: #3b82f6;
  color: white;
}

.badge-lg {
  padding: 0.5rem 1.25rem;
  font-size: 0.875rem;
}

/* ===== 폼 요소 ===== */
.form-group {
  margin-bottom: 1.5rem;
}

label {
  display: block;
  margin-bottom: 0.5rem;
  font-weight: 600;
  font-size: 0.95rem;
  color: var(--text);
}

.input,
.select,
.textarea {
  width: 100%;
  padding: 0.875rem 1.125rem;
  border: 2px solid var(--border);
  background-color: rgba(255, 255, 255, 0.02);
  color: var(--text);
  border-radius: var(--radius-lg);
  font-size: 1rem;
  transition: var(--transition);
  font-family: inherit;
}

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

.input:focus,
.select:focus,
.textarea:focus {
  outline: none;
  border-color: var(--primary);
  background-color: rgba(255, 215, 0, 0.05);
  box-shadow: 0 0 0 3px rgba(255, 215, 0, 0.1);
}

.input:disabled,
.select:disabled,
.textarea:disabled {
  background-color: var(--secondary);
  color: var(--text-tertiary);
  cursor: not-allowed;
}

.textarea {
  resize: vertical;
  min-height: 120px;
}

.select {
  cursor: pointer;
  appearance: none;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 12 12'%3E%3Cpath fill='%23FFD700' d='M6 9L1 4h10z'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 1rem center;
  padding-right: 2.5rem;
}

.input-error {
  border-color: var(--accent);
}

.input-success {
  border-color: #22c55e;
}

.form-error {
  color: var(--accent);
  font-size: 0.75rem;
  margin-top: 0.375rem;
  display: flex;
  align-items: center;
  gap: 0.375rem;
}

.form-help {
  color: var(--text-tertiary);
  font-size: 0.875rem;
  margin-top: 0.375rem;
}

/* ===== 상품 카드 ===== */
.product-card {
  background-color: var(--secondary);
  border-radius: var(--radius-lg);
  overflow: hidden;
  border: 1px solid var(--border);
  transition: var(--transition);
  display: flex;
  flex-direction: column;
  height: 100%;
}

.product-card:hover {
  transform: translateY(-8px);
  box-shadow: var(--shadow-hover);
}

.product-card:hover .product-img {
  transform: scale(1.05);
}

.product-img {
  width: 100%;
  aspect-ratio: 3 / 4;
  object-fit: cover;
  display: block;
  transition: var(--transition);
  background-color: var(--secondary-light);
  position: relative;
  overflow: hidden;
}

.product-badge {
  position: absolute;
  top: 1rem;
  right: 1rem;
  z-index: 10;
}

.product-badge-secondary {
  position: absolute;
  top: 1rem;
  left: 1rem;
  z-index: 10;
}

.product-info {
  padding: 1.5rem;
  flex-grow: 1;
  display: flex;
  flex-direction: column;
}

.product-title {
  font-size: 1.125rem;
  font-weight: 700;
  margin-bottom: 0.5rem;
  line-height: 1.3;
  color: var(--text);
}

.product-meta {
  display: flex;
  gap: 1rem;
  align-items: center;
  margin-bottom: 1rem;
  font-size: 0.875rem;
  color: var(--text-secondary);
}

.product-rating {
  display: flex;
  align-items: center;
  gap: 0.375rem;
  color: var(--primary);
}

.product-description {
  font-size: 0.875rem;
  color: var(--text-secondary);
  margin-bottom: 1.5rem;
  flex-grow: 1;
}

.product-price {
  display: flex;
  align-items: baseline;
  gap: 0.75rem;
  margin-bottom: 1.5rem;
}

.product-current-price {
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--primary);
}

.product-original-price {
  font-size: 1rem;
  color: var(--text-tertiary);
  text-decoration: line-through;
}

.product-discount {
  font-size: 0.875rem;
  color: var(--accent);
  font-weight: 600;
}

.product-footer {
  display: flex;
  gap: 1rem;
  margin-top: auto;
}

.product-footer .btn {
  flex: 1;
}

/* ===== 네비게이션 ===== */
.header {
  background-color: rgba(15, 15, 15, 0.95);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--border);
  position: sticky;
  top: 0;
  z-index: 1000;
  transition: var(--transition);
}

.header.scrolled {
  box-shadow: var(--shadow);
}

.header-content {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 1rem 0;
}

.logo {
  font-size: 1.5rem;
  font-weight: 800;
  color: var(--primary);
  text-decoration: none;
  letter-spacing: -1px;
  display: flex;
  align-items: center;
  gap: 0.75rem;
  transition: var(--transition);
}

.logo:hover {
  color: var(--primary-dark);
}

.nav {
  display: flex;
  gap: 2.5rem;
  align-items: center;
}

.nav-link {
  color: var(--text);
  text-decoration: none;
  font-weight: 500;
  transition: var(--transition);
  position: relative;
  font-size: 0.95rem;
}

.nav-link:hover {
  color: var(--primary);
}

.nav-link::after {
  content: '';
  position: absolute;
  bottom: -4px;
  left: 0;
  width: 0;
  height: 2px;
  background-color: var(--primary);
  transition: var(--transition);
}

.nav-link:hover::after {
  width: 100%;
}

.nav-link.active {
  color: var(--primary);
}

.nav-link.active::after {
  width: 100%;
}

.nav-divider {
  width: 1px;
  height: 1.5rem;
  background-color: var(--border);
}

.nav-actions {
  display: flex;
  align-items: center;
  gap: 1rem;
}

.search-box {
  position: relative;
  width: 250px;
}

.search-box input {
  width: 100%;
  padding: 0.75rem 1rem;
  padding-left: 2.5rem;
  background-color: var(--secondary);
  border: 1px solid var(--border);
  border-radius: var(--radius-full);
  color: var(--text);
  font-size: 0.9rem;
  transition: var(--transition);
}

.search-box input:focus {
  outline: none;
  border-color: var(--primary);
  background-color: var(--secondary-light);
}

.search-icon {
  position: absolute;
  left: 0.75rem;
  top: 50%;
  transform: translateY(-50%);
  color: var(--text-secondary);
  pointer-events: none;
}

.mobile-menu-btn {
  display: none;
  background: none;
  border: none;
  color: var(--text);
  cursor: pointer;
  font-size: 1.5rem;
}

/* ===== 히어로 섹션 ===== */
.hero {
  position: relative;
  min-height: 600px;
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
  background: linear-gradient(135deg, rgba(255, 215, 0, 0.05) 0%, rgba(255, 215, 0, 0) 100%);
}

.hero::before {
  content: '';
  position: absolute;
  top: -50%;
  right: -10%;
  width: 600px;
  height: 600px;
  background: radial-gradient(circle, rgba(255, 215, 0, 0.1) 0%, transparent 70%);
  border-radius: 50%;
}

.hero::after {
  content: '';
  position: absolute;
  bottom: -30%;
  left: -5%;
  width: 500px;
  height: 500px;
  background: radial-gradient(circle, rgba(255, 215, 0, 0.08) 0%, transparent 70%);
  border-radius: 50%;
}

.hero-content {
  position: relative;
  z-index: 2;
  text-align: center;
  max-width: 800px;
}

.hero-title {
  font-size: 4rem;
  font-weight: 800;
  line-height: 1.1;
  margin-bottom: 1.5rem;
  letter-spacing: -2px;
  animation: fadeInUp 0.8s ease-out;
}

.hero-title .highlight {
  color: var(--primary);
  position: relative;
}

.hero-subtitle {
  font-size: 1.375rem;
  color: var(--text-secondary);
  margin-bottom: 2rem;
  line-height: 1.6;
  animation: fadeInUp 0.8s ease-out 0.1s both;
}

.hero-description {
  font-size: 1rem;
  color: var(--text-secondary);
  margin-bottom: 2.5rem;
  animation: fadeInUp 0.8s ease-out 0.2s both;
}

.hero-btn {
  display: flex;
  gap: 1.5rem;
  justify-content: center;
  flex-wrap: wrap;
  animation: fadeInUp 0.8s ease-out 0.3s both;
}

.hero-image {
  position: absolute;
  right: 5%;
  top: 50%;
  transform: translateY(-50%);
  z-index: 1;
  max-width: 45%;
  height: auto;
  animation: float 3s ease-in-out infinite;
}

/* ===== 푸터 ===== */
.footer {
  background-color: var(--secondary);
  border-top: 1px solid var(--border);
  padding: 4rem 0 2rem;
  margin-top: auto;
}

.footer-content {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 2rem;
  margin-bottom: 3rem;
}

.footer-section h4 {
  margin-bottom: 1.5rem;
  color: var(--text);
}

.footer-link {
  display: block;
  color: var(--text-secondary);
  text-decoration: none;
  margin-bottom: 0.75rem;
  transition: var(--transition);
  font-size: 0.95rem;
}

.footer-link:hover {
  color: var(--primary);
  transform: translateX(4px);
}

.footer-social {
  display: flex;
  gap: 1rem;
  margin-top: 1.5rem;
}

.footer-social-link {
  width: 40px;
  height: 40px;
  border-radius: 50%;
  background-color: var(--secondary-light);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--text);
  text-decoration: none;
  transition: var(--transition);
}

.footer-social-link:hover {
  background-color: var(--primary);
  color: var(--bg);
  transform: translateY(-4px);
}

.footer-divider {
  border-top: 1px solid var(--border);
  padding-top: 2rem;
  margin-bottom: 2rem;
}

.footer-bottom {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding-top: 2rem;
  border-top: 1px solid var(--border);
}

.footer-copyright {
  color: var(--text-secondary);
  font-size: 0.875rem;
}

.footer-legal {
  display: flex;
  gap: 1.5rem;
}

.footer-legal-link {
  color: var(--text-secondary);
  text-decoration: none;
  font-size: 0.875rem;
  transition: var(--transition);
}

.footer-legal-link:hover {
  color: var(--primary);
}

/* ===== 유틸리티 ===== */
.hidden {
  display: none !important;
}

.invisible {
  visibility: hidden;