/* Google Fonts */
@import url('https://fonts.googleapis.com/css2?family=Unbounded:wght@400;500;600;700;900&family=Manrope:wght@400;500;600;700;800&display=swap');

/* ─── CSS 변수 ─── */
:root {

  /* 배경색 */
  --color-bg-primary:   #0a0a12;
  --color-bg-secondary: #121220;
  --color-bg-alt:       #16162a;

  /* 포인트 컬러 */
  --color-main:         #b455ff;
  --color-sub:           #22e5c8;
  --color-accent:       #ff3d94;
  --color-accent-hover: #ff5fa8;

  /* 텍스트 */
  --color-text-primary:   #f5f4fb;
  --color-text-primary-w: #ffffff;
  --color-text-secondary: rgba(245, 244, 251, 0.68);
  --color-text-dark:      #0a0a12;

  /* 테두리 */
  --color-border:        rgba(255, 255, 255, 0.12);
  --color-border-accent: rgba(180, 85, 255, 0.4);

  /* 오버레이 */
  --color-overlay: rgba(10, 8, 18, 0.65);

  /* ─── 폰트 패밀리 ─── */
  --font-heading: 'Unbounded', 'Pretendard', sans-serif;
  --font-body:    'Manrope', 'Pretendard', sans-serif;

  /* ─── 폰트 크기 (1rem = 10px) ─── */
  --text-3xs:  1rem;      /* 10px */
  --text-2xs:  1.2rem;    /* 12px */
  --text-xs:   1.4rem;    /* 14px */
  --text-sm:   1.6rem;    /* 16px */
  --text-base: 1.8rem;    /* 18px */
  --text-md:   1.8rem;    /* 18px */
  --text-lg:   2rem;      /* 20px */
  --text-xl:   2.4rem;    /* 24px */
  --text-2xl:  3.2rem;    /* 32px */
  --text-3xl:  4rem;      /* 40px */
  --text-4xl:  5.6rem;    /* 56px */
  --text-5xl:  8rem;      /* 80px */
  --text-6xl:  10.4rem;   /* 104px */

  /* ─── 폰트 굵기 ─── */
  --fw-light:    300;
  --fw-regular:  400;
  --fw-medium:   500;
  --fw-semibold: 600;
  --fw-bold:     900;

  /* ─── 자간 ─── */
  --ls-widest: 0.22em;
  --ls-wide:   0.12em;
  --ls-normal: 0.04em;

  /* ─── 간격 ─── */
  --space-xs:  0.8rem;    /*  8px */
  --space-sm:  1.6rem;    /* 16px */
  --space-md:  3.2rem;    /* 32px */
  --space-lg:  6.4rem;    /* 64px */
  --space-xl:  9.6rem;    /* 96px */
  --space-2xl: 12.8rem;   /* 128px */
  --space-3xl: 19.2rem;   /* 192px */

  /* ─── 레이아웃 ─── */
  --max-width:     1260px;
  --container-pad: 6rem;
  --nav-h:         80px;
  --banner-h:      5rem;
  --radius:        10px;

  /* ─── 전환 ─── */
  --transition:      all 0.3s ease;
  --transition-slow: all 0.65s ease;

  /* ─── 버튼 ─── */
  --btn-radius: 999px;
  --btn-pad:    1.6rem 4rem;
}

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

html {
  font-size: 62.5%; /* 1rem = 10px */
  scroll-behavior: smooth;
}

body {
  font-family: var(--font-body);
  font-size: var(--text-sm);
  background: var(--color-bg-primary);
  color: var(--color-text-primary);
  overflow-x: hidden;
}

::selection {
  background: var(--color-main);
  color: var(--color-text-primary-w);
}

::-webkit-scrollbar {
  width: 10px;
}
::-webkit-scrollbar-track {
  background: var(--color-bg-primary);
}
::-webkit-scrollbar-thumb {
  background: linear-gradient(180deg, var(--color-main), var(--color-sub));
  border-radius: 999px;
}

a {
  text-decoration: none;
  color: inherit;
}
img {
  display: block;
  max-width: 100%;
}
ul, ol {
  list-style: none;
}
button {
  font-family: inherit;
}

/* ───── 공통 레이아웃 ───── */
.container {
  position: relative;
  z-index: 1;
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 var(--container-pad);
}

.section {
  padding: var(--space-3xl) 0;
}

.tag {
  display: inline-flex;
  align-items: center;
  gap: 1rem;
  padding: 3rem 0;
  font-family: var(--font-heading);
  font-size: var(--text-xl);
  font-weight: var(--fw-semibold);
  letter-spacing: var(--ls-wide);
  text-transform: uppercase;
  color: var(--color-sub);
}

.section__title {
  font-family: var(--font-heading);
  font-size: 5rem;
  font-weight: var(--fw-bold);
  line-height: 1.08;
  letter-spacing: -0.02em;
  padding: 2rem 0;
}

/* ───── 버튼 ───── */
.btn {
  position: relative;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 1rem;
  padding: var(--btn-pad);
  border-radius: var(--btn-radius);
  overflow: hidden;
  font-family: var(--font-heading);
  font-size: var(--text-sm);
  font-weight: var(--fw-semibold);
  letter-spacing: var(--ls-normal);
  text-transform: uppercase;
  border: none;
  cursor: pointer;
  transition: var(--transition);
  white-space: nowrap;
}

.btn--primary {
  background: linear-gradient(90deg, var(--color-main), var(--color-accent));
  color: var(--color-text-primary-w);
  box-shadow: 0 8px 28px rgba(180, 85, 255, 0.35);
}
.btn--primary::before {
  content: '';
  position: absolute;
  top: 0;
  left: -60%;
  width: 40%;
  height: 100%;
  background: linear-gradient(120deg, transparent, rgba(255, 255, 255, 0.55), transparent);
  transform: skewX(-20deg);
  transition: left 0.6s ease;
}
.btn--primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 12px 34px rgba(180, 85, 255, 0.5);
}
.btn--primary:hover::before {
  left: 120%;
}

.btn--ghost {
  background: rgba(255, 255, 255, 0.04);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  color: var(--color-text-primary-w);
  border: 1px solid var(--color-border);
}
.btn--ghost:hover {
  border-color: var(--color-sub);
  color: var(--color-sub);
  transform: translateY(-2px);
}

.btn--ticket {
  background: linear-gradient(90deg, var(--color-main), var(--color-accent));
  border: 1px solid transparent;
  color: var(--color-text-primary-w);
  box-shadow: 0 8px 28px rgba(180, 85, 255, 0.35);
}
.btn--ticket i {
  color: var(--color-text-primary-w);
  transition: var(--transition);
}
.btn--ticket:hover {
  transform: translateY(-2px);
  box-shadow: 0 12px 34px rgba(180, 85, 255, 0.5);
}

/* ───── 네비게이션 ───── */
.nav {
  position: fixed;
  top: var(--banner-h); left: 0;
  width: 100%;
  height: var(--nav-h);
  z-index: 1000;
  background: rgba(10, 10, 18, 0.55);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  border-bottom: 1px solid var(--color-border);
  transform: translateY(-100%);
  opacity: 0;
  pointer-events: none;
  transition: background 0.4s ease, border-color 0.4s ease, transform 1.1s ease, opacity 1.1s ease;
}

.nav.is-visible {
  transform: translateY(0);
  opacity: 1;
  pointer-events: auto;
}

.nav::after {
  content: '';
  position: absolute;
  left: 0; right: 0; bottom: -1px;
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--color-main), var(--color-sub), var(--color-accent), transparent);
  opacity: 0.6;
}

.nav.is-scrolled {
  background: rgba(10, 10, 18, 0.92);
}

.nav__inner {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 var(--container-pad);
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.nav__brand {
  display: flex;
  align-items: center;
  gap: 1.2rem;
}

.nav__logo {
  font-family: var(--font-heading);
  font-size: var(--text-lg);
  font-weight: var(--fw-bold);
  line-height: 0.95;
  letter-spacing: -0.01em;
  text-align: center;
  background: linear-gradient(100deg, #ffffff 20%, var(--color-sub) 50%, var(--color-main) 75%, var(--color-accent) 100%);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

.nav__menu {
  display: flex;
  align-items: center;
  gap: 3.6rem;
}

.nav__link {
  font-family: var(--font-heading);
  font-size: var(--text-xs);
  font-weight: var(--fw-medium);
  text-transform: uppercase;
  color: var(--color-text-secondary);
  transition: color 0.2s ease;
  position: relative;
}

.nav__link::after {
  content: '';
  position: absolute;
  bottom: -6px; left: 0;
  width: 0; height: 2px;
  background: var(--color-sub);
  transition: width 0.25s ease;
}

.nav__link:hover {
  color: var(--color-text-primary-w);
}

.nav__link:hover::after {
  width: 100%;
}

.nav__panel {
  display: contents;
}

.nav__actions {
  display: flex;
  align-items: center;
  gap: 2.8rem;
}

/* ───── 모바일 메뉴 토글 버튼 (햄버거) ───── */
.nav__toggle {
  display: none;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  gap: 5px;
  width: 3.2rem;
  height: 3.2rem;
  border: none;
  background: none;
  cursor: pointer;
  z-index: 1001;
}

.nav__toggle-bar {
  display: block;
  width: 100%;
  height: 2px;
  background: var(--color-text-primary-w);
  transition: transform 0.25s ease, opacity 0.25s ease;
}

.nav__toggle--active .nav__toggle-bar:nth-child(1) {
  transform: translateY(7px) rotate(45deg);
}
.nav__toggle--active .nav__toggle-bar:nth-child(2) {
  opacity: 0;
}
.nav__toggle--active .nav__toggle-bar:nth-child(3) {
  transform: translateY(-7px) rotate(-45deg);
}

/* ───── 언어 토글 (KR/EN) ───── */
.lang-toggle {
  display: flex;
  align-items: center;
  gap: 1.5rem;
}

.lang-toggle__btn {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 0.3rem;
  padding: 0;
  border: none;
  background: none;
  cursor: pointer;
  opacity: 0.5;
  transition: opacity 0.2s ease, transform 0.2s ease;
}

.lang-toggle__btn:hover {
  opacity: 0.85;
  transform: translateY(-1px);
}

.lang-toggle__btn--active {
  opacity: 1;
}

.lang-toggle__label {
  font-size: var(--text-2xs);
  font-weight: var(--fw-bold);
  letter-spacing: var(--ls-normal);
  color: var(--color-text-primary-w);
}

/* ═══════════════════════════════
   Footer
═══════════════════════════════ */
.footer {
  padding: var(--space-2xl) 0 var(--space-lg);
}

.footer__brand-row {
  display: flex;
  align-items: center;
  gap: var(--space-md);
  width: 100%;
}
.footer__line {
  flex: 1;
  height: 2px;
}
.footer__line--left {
  background: linear-gradient(90deg, rgba(180, 85, 255, 0.85) 0%, transparent 100%);
}
.footer__line--right {
  background: linear-gradient(90deg, transparent 0%, rgba(180, 85, 255, 0.85) 100%);
}

.footer__inner {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: var(--space-2xl) var(--container-pad) 0;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--space-lg);
  text-align: center;
}

.footer__logo {
  flex-shrink: 0;
  white-space: nowrap;
  font-family: var(--font-heading);
  font-size: var(--text-2xl);
  font-weight: var(--fw-bold);
  letter-spacing: -0.01em;
  background: linear-gradient(100deg, #ffffff 20%, var(--color-sub) 50%, var(--color-main) 75%, var(--color-accent) 100%);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

.footer__social {
  display: flex;
  align-items: center;
  gap: var(--space-md); /* 32px */
}
.footer__social-link {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 4.8rem;  /* 48px */
  height: 4.8rem; /* 48px */
  border-radius: 50%;
  color: var(--color-text-primary-w);
  font-size: var(--text-xl);
  transition: transform 0.2s ease, color 0.2s ease;
}
.footer__social-link:hover,
.footer__social-link:focus-visible,
.footer__social-link:active {
  color: var(--color-sub);
  transform: scale(1.1);
}

.footer__nav {
  display: flex;
  align-items: center;
  gap: var(--space-lg);
}
.footer__nav-link {
  border: none;
  background: none;
  cursor: pointer;
  font-family: var(--font-heading);
  font-size: var(--text-xs);
  font-weight: var(--fw-bold);
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--color-text-primary-w);
  transition: color 0.2s ease;
}
.footer__nav-link:hover {
  color: var(--color-sub);
}

.footer__copyright {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: center;
  gap: 0.8rem;
  font-size: var(--text-2xs); 
  letter-spacing: var(--ls-wide);
  color: var(--color-text-secondary);
  text-transform: uppercase;
}
.footer__copyright span {
  text-transform: none;
  color: var(--color-text-secondary);
}

/* ───── 스크롤 리빌 애니메이션 ───── */
[data-reveal] {
  opacity: 0;
  transform: translateY(28px);
  transition: opacity 0.7s ease, transform 0.7s ease;
}
[data-reveal].is-visible {
  opacity: 1;
  transform: translateY(0);
}

/* ───── 모바일 반응형 ───── */

/* Laptop 1024px */
@media (max-width: 1024px) {
  html {
    font-size: 56.25%;
  }
  :root {
    --container-pad: 3.2rem;
  }
}

/* Tablet 768px */
@media (max-width: 768px) {
  html {
    font-size: 50%;
  }
  :root {
    --container-pad: 2.8rem;
  }

  .nav__toggle {
    display: flex;
  }
  .nav__panel {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 4rem;
    position: fixed;
    top: calc(var(--banner-h) + var(--nav-h));
    left: 0;
    width: 100%;
    height: calc(100vh - var(--banner-h) - var(--nav-h));
    background: var(--color-bg-primary);
    transform: translateY(-100%);
    opacity: 0;
    pointer-events: none;
    transition: transform 0.35s ease, opacity 0.35s ease;
  }
  .nav__panel--open {
    transform: translateY(0);
    opacity: 1;
    pointer-events: auto;
  }
  .nav__menu {
    flex-direction: column;
    gap: 3.2rem;
  }
  .nav__link {
    font-size: var(--text-xl);
  }

  .footer__nav {
    gap: var(--space-md);
  }
}

/* Mobile L 430px */
@media (max-width: 430px) {
  html {
    font-size: 43.75%;
  }
  :root {
    --container-pad: 2rem;
  }

  .footer__copyright {
    flex-direction: column;
    gap: 0.4rem;
  }
}

/* Mobile S 360px */
@media (max-width: 360px) {
  html {
    font-size: 37.5%;
  }
}