/*
 * css/hub.css
 * 아츠로 아티스트 허브 랜딩 페이지 전용 스타일
 */

/* ===== RESET & BASE ===== */
:root {
  --bg: #0d1117;
  --surface: #161b22;
  --surface-raised: #21262d;
  --border: rgba(255,255,255,0.10);
  --text: #e6edf3;
  --subtext: #8b949e;
  --focus: #58a6ff;

  /* 아티스트별 시그니처 컬러 */
  --hongja:     #c84f92;
  --hongja-glow: rgba(200, 79, 146, 0.35);
  --jadu:       #e05530;
  --jadu-glow:  rgba(224, 85, 48, 0.35);
  --yangjieun:  #2f82c8;
  --yangjieun-glow: rgba(47, 130, 200, 0.35);
  --chomyungseop: #a07040;
  --chomyungseop-glow: rgba(160, 112, 64, 0.35);
  --jiseheui:   #a4406b;
  --jiseheui-glow: rgba(164, 64, 107, 0.35);
  --songminkyung: #b8860b;
  --songminkyung-glow: rgba(184, 134, 11, 0.35);
  --momoland:   #e0389c;
  --momoland-glow: rgba(224, 56, 156, 0.35);
  --leehyunwoo: #8a5a23;
  --leehyunwoo-glow: rgba(138, 90, 35, 0.35);
  --leeseunghyun: #1f5aa8;
  --leeseunghyun-glow: rgba(31, 90, 168, 0.35);
  --kimsungeun: #2e3a59;
  --kimsungeun-glow: rgba(46, 58, 89, 0.35);
  --parkjihye:  #0f7a52;
  --parkjihye-glow: rgba(15, 122, 82, 0.35);
}

*, *::before, *::after { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  margin: 0;
  font-family: 'Noto Sans KR', sans-serif;
  font-size: 16px;
  line-height: 1.7;
  color: var(--text);
  background: var(--bg);
}

a { color: inherit; text-underline-offset: 3px; }

a:focus-visible,
button:focus-visible {
  outline: 3px solid var(--focus);
  outline-offset: 2px;
}

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

.skip-link {
  position: absolute;
  left: -9999px;
  top: 0;
  background: #000;
  color: #fff;
  padding: 12px 16px;
  z-index: 9999;
}
.skip-link:focus { left: 12px; top: 12px; }

/* ===== HUB HEADER ===== */
.hub-header {
  position: relative;
  min-height: 420px;
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
  overflow: hidden;
  padding: 80px 24px 72px;
}

.hub-header-bg {
  position: absolute;
  inset: 0;
  background:
    radial-gradient(ellipse 70% 60% at 20% 40%, rgba(200, 79, 146, 0.22) 0%, transparent 60%),
    radial-gradient(ellipse 60% 50% at 80% 30%, rgba(47, 130, 200, 0.20) 0%, transparent 55%),
    radial-gradient(ellipse 55% 50% at 50% 90%, rgba(224, 85, 48, 0.16) 0%, transparent 55%),
    radial-gradient(ellipse 50% 40% at 70% 80%, rgba(160, 112, 64, 0.16) 0%, transparent 50%),
    linear-gradient(160deg, #0d1117 0%, #161b22 100%);
  z-index: 0;
}

/* 상단 장식 라인 */
.hub-header::before {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 3px;
  background: linear-gradient(90deg,
    var(--hongja) 0%,
    var(--jadu) 33%,
    var(--yangjieun) 66%,
    var(--chomyungseop) 100%
  );
  z-index: 1;
}

.hub-header-content {
  position: relative;
  z-index: 1;
  max-width: 680px;
}

.hub-eyebrow {
  margin: 0 0 16px;
  font-size: 0.82rem;
  font-weight: 700;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--subtext);
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
}

.hub-title {
  margin: 0 0 16px;
  font-size: clamp(2.2rem, 5vw, 3.6rem);
  font-weight: 900;
  line-height: 1.18;
  letter-spacing: -0.025em;
  background: linear-gradient(135deg, #fff 30%, #c4cfda 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.hub-subtitle {
  margin: 0 0 32px;
  font-size: 1.05rem;
  color: var(--subtext);
  line-height: 1.75;
}

.hub-cta-main {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 14px 28px;
  border-radius: 999px;
  background: rgba(255,255,255,0.08);
  border: 1px solid rgba(255,255,255,0.18);
  color: var(--text);
  text-decoration: none;
  font-weight: 700;
  font-size: 0.95rem;
  transition: background 0.2s, border-color 0.2s, transform 0.2s;
}

.hub-cta-main:hover {
  background: rgba(255,255,255,0.16);
  border-color: rgba(255,255,255,0.36);
  transform: translateY(-2px);
}

.mob-br { display: none; }

/* ===== ARTISTS SECTION ===== */
.artists-section {
  max-width: 1200px;
  margin: 0 auto;
  padding: 72px 24px 80px;
}

.section-header {
  text-align: center;
  margin-bottom: 52px;
}

.section-header h2 {
  margin: 0 0 10px;
  font-size: clamp(1.4rem, 2.8vw, 2rem);
  font-weight: 800;
  color: var(--text);
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
}

.section-header h2 i {
  color: #e3c46a;
}

.section-header p {
  margin: 0;
  color: var(--subtext);
  font-size: 0.98rem;
}

/* ===== ARTIST GRID ===== */
.artist-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
}

/* ===== ARTIST CARD ===== */
.artist-card {
  position: relative;
  border-radius: 20px;
  background: var(--surface);
  border: 1px solid var(--border);
  overflow: hidden;
  transition: transform 0.25s ease, box-shadow 0.25s ease;
  display: flex;
  flex-direction: column;
}

.artist-card:hover {
  transform: translateY(-6px);
}

/* 카드 상단 시그니처 라인 */
.artist-card::before {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 3px;
  z-index: 2;
  border-radius: 20px 20px 0 0;
}

.artist-card.hongja::before      { background: linear-gradient(90deg, #e15da3, #b63f83); }
.artist-card.jadu::before         { background: linear-gradient(90deg, #ff6b35, #d0392b); }
.artist-card.yangjieun::before    { background: linear-gradient(90deg, #7fc7ff, #2f6fb3); }
.artist-card.chomyungseop::before { background: linear-gradient(90deg, #d4aa76, #7f5331); }
.artist-card.jiseheui::before     { background: linear-gradient(90deg, #d488a8, #a4406b); }
.artist-card.songminkyung::before { background: linear-gradient(90deg, #e6c157, #b8860b); }
.artist-card.momoland::before     { background: linear-gradient(90deg, #f383c4, #e0389c); }
.artist-card.leehyunwoo::before   { background: linear-gradient(90deg, #c08a4a, #8a5a23); }
.artist-card.leeseunghyun::before { background: linear-gradient(90deg, #6ea3e0, #1f5aa8); }
.artist-card.kimsungeun::before   { background: linear-gradient(90deg, #5c6d97, #2e3a59); }
.artist-card.parkjihye::before    { background: linear-gradient(90deg, #4fc190, #0f7a52); }

.artist-card.hongja:hover      { box-shadow: 0 20px 48px var(--hongja-glow); }
.artist-card.jadu:hover         { box-shadow: 0 20px 48px var(--jadu-glow); }
.artist-card.yangjieun:hover    { box-shadow: 0 20px 48px var(--yangjieun-glow); }
.artist-card.chomyungseop:hover { box-shadow: 0 20px 48px var(--chomyungseop-glow); }
.artist-card.jiseheui:hover     { box-shadow: 0 20px 48px var(--jiseheui-glow); }
.artist-card.songminkyung:hover { box-shadow: 0 20px 48px var(--songminkyung-glow); }
.artist-card.momoland:hover     { box-shadow: 0 20px 48px var(--momoland-glow); }
.artist-card.leehyunwoo:hover   { box-shadow: 0 20px 48px var(--leehyunwoo-glow); }
.artist-card.leeseunghyun:hover { box-shadow: 0 20px 48px var(--leeseunghyun-glow); }
.artist-card.kimsungeun:hover   { box-shadow: 0 20px 48px var(--kimsungeun-glow); }
.artist-card.parkjihye:hover    { box-shadow: 0 20px 48px var(--parkjihye-glow); }

.card-inner {
  display: flex;
  flex-direction: column;
  flex: 1;
  text-decoration: none;
  color: inherit;
}

/* ===== CARD IMAGE ===== */
.card-img-wrap {
  position: relative;
  overflow: hidden;
  aspect-ratio: 4 / 3;
}

.card-img-wrap img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: top center;
  transition: transform 0.4s ease;
}

.artist-card:hover .card-img-wrap img {
  transform: scale(1.06);
}

/* 이미지 하단 그라디언트 오버레이 */
.card-img-wrap::after {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(to top, rgba(13,17,23,0.75) 0%, transparent 52%);
}

.card-genre-tag {
  position: absolute;
  top: 12px; left: 12px;
  z-index: 1;
  padding: 4px 10px;
  border-radius: 999px;
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.04em;
  background: rgba(0,0,0,0.55);
  border: 1px solid rgba(255,255,255,0.22);
  color: #fff;
  backdrop-filter: blur(6px);
}

.card-new-tag {
  position: absolute;
  top: 12px; right: 12px;
  z-index: 1;
  padding: 4px 10px;
  border-radius: 999px;
  font-size: 0.72rem;
  font-weight: 800;
  letter-spacing: 0.04em;
  background: linear-gradient(135deg, #ff6b35, #d0392b);
  color: #fff;
  display: flex;
  align-items: center;
  gap: 5px;
  box-shadow: 0 2px 10px rgba(208, 57, 43, 0.5);
}

/* ===== CARD BODY ===== */
.card-body {
  padding: 20px 20px 16px;
  flex: 1;
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.card-label {
  margin: 0;
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--subtext);
}

.card-name {
  margin: 0;
  font-size: clamp(1.3rem, 2vw, 1.6rem);
  font-weight: 900;
  line-height: 1.2;
  letter-spacing: -0.01em;
  color: var(--text);
}

.artist-card.hongja .card-name      { color: #f09ec8; }
.artist-card.jadu .card-name         { color: #f9a07a; }
.artist-card.yangjieun .card-name    { color: #8cc8f0; }
.artist-card.chomyungseop .card-name { color: #d4aa76; }
.artist-card.jiseheui .card-name     { color: #e0a4c0; }
.artist-card.songminkyung .card-name { color: #f0d080; }
.artist-card.momoland .card-name     { color: #f7a8d6; }
.artist-card.leehyunwoo .card-name   { color: #d9b47f; }
.artist-card.leeseunghyun .card-name { color: #90b8e8; }
.artist-card.kimsungeun .card-name   { color: #a8b4d0; }
.artist-card.parkjihye .card-name    { color: #7fe6b4; }

.card-desc {
  margin: 0;
  font-size: 0.86rem;
  line-height: 1.6;
  color: var(--subtext);
  flex: 1;
}

.card-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  list-style: none;
  margin: 6px 0 0;
  padding: 0;
}

.card-tags li {
  padding: 3px 10px;
  border-radius: 999px;
  font-size: 0.75rem;
  font-weight: 600;
  background: rgba(255,255,255,0.07);
  border: 1px solid rgba(255,255,255,0.12);
  color: var(--subtext);
}

.card-link-btn {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  margin-top: 14px;
  font-size: 0.88rem;
  font-weight: 700;
  color: var(--text);
  opacity: 0.75;
  transition: opacity 0.2s, gap 0.2s;
}

.artist-card:hover .card-link-btn {
  opacity: 1;
  gap: 10px;
}

/* 아티스트별 링크 버튼 컬러 */
.artist-card.hongja .card-link-btn      { color: #f09ec8; }
.artist-card.jadu .card-link-btn         { color: #f9a07a; }
.artist-card.yangjieun .card-link-btn    { color: #8cc8f0; }
.artist-card.chomyungseop .card-link-btn { color: #d4aa76; }
.artist-card.jiseheui .card-link-btn     { color: #e0a4c0; }
.artist-card.songminkyung .card-link-btn { color: #f0d080; }
.artist-card.momoland .card-link-btn     { color: #f7a8d6; }
.artist-card.leehyunwoo .card-link-btn   { color: #d9b47f; }
.artist-card.leeseunghyun .card-link-btn { color: #90b8e8; }
.artist-card.kimsungeun .card-link-btn   { color: #a8b4d0; }
.artist-card.parkjihye .card-link-btn    { color: #7fe6b4; }

/* ===== 섭외 문의 버튼 (카드 하단 분리 버튼) ===== */
.card-booking-btn {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 13px;
  text-decoration: none;
  font-size: 0.88rem;
  font-weight: 700;
  color: rgba(255,255,255,0.6);
  background: rgba(255,255,255,0.04);
  border-top: 1px solid var(--border);
  transition: background 0.2s, color 0.2s;
}

.card-booking-btn:hover {
  color: #fff;
}

.artist-card.hongja .card-booking-btn:hover      { background: rgba(200,79,146,0.18); }
.artist-card.jadu .card-booking-btn:hover         { background: rgba(224,85,48,0.18); }
.artist-card.yangjieun .card-booking-btn:hover    { background: rgba(47,130,200,0.18); }
.artist-card.chomyungseop .card-booking-btn:hover { background: rgba(160,112,64,0.18); }
.artist-card.jiseheui .card-booking-btn:hover     { background: rgba(164,64,107,0.18); }
.artist-card.songminkyung .card-booking-btn:hover { background: rgba(184,134,11,0.18); }
.artist-card.momoland .card-booking-btn:hover     { background: rgba(224,56,156,0.18); }
.artist-card.leehyunwoo .card-booking-btn:hover   { background: rgba(138,90,35,0.18); }
.artist-card.leeseunghyun .card-booking-btn:hover { background: rgba(31,90,168,0.18); }
.artist-card.kimsungeun .card-booking-btn:hover   { background: rgba(46,58,89,0.18); }
.artist-card.parkjihye .card-booking-btn:hover    { background: rgba(15,122,82,0.18); }

/* ===== ABOUT ARTSRO ===== */
.about-artsro {
  background: var(--surface);
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
  padding: 64px 24px;
}

.about-inner {
  max-width: 1100px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 48px;
  align-items: center;
}

.about-text h2 {
  margin: 0 0 14px;
  font-size: clamp(1.25rem, 2.2vw, 1.7rem);
  font-weight: 800;
  color: var(--text);
  display: flex;
  align-items: center;
  gap: 10px;
}

.about-text h2 i {
  color: #e3c46a;
}

.about-text p {
  margin: 0 0 10px;
  color: var(--subtext);
  font-size: 0.95rem;
  max-width: 560px;
}

.about-contact {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 20px;
}

.about-contact a {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  padding: 9px 16px;
  border-radius: 10px;
  background: rgba(255,255,255,0.06);
  border: 1px solid var(--border);
  color: var(--text);
  text-decoration: none;
  font-size: 0.9rem;
  font-weight: 600;
  transition: background 0.2s, border-color 0.2s;
}

.about-contact a:hover {
  background: rgba(255,255,255,0.12);
  border-color: rgba(255,255,255,0.28);
}

.about-contact a i {
  color: #e3c46a;
}

/* ===== STATS ===== */
.about-stats {
  display: flex;
  gap: 32px;
}

.stat-item {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 4px;
}

.stat-num {
  font-size: 2.2rem;
  font-weight: 900;
  line-height: 1;
  background: linear-gradient(135deg, #e3c46a, #c89a44);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.stat-label {
  font-size: 0.78rem;
  font-weight: 600;
  color: var(--subtext);
  text-align: center;
  white-space: nowrap;
}

/* ===== HUB FOOTER ===== */
.hub-footer {
  background: #0a0d12;
  padding: 40px 24px 36px;
  border-top: 1px solid var(--border);
}

.hub-footer-inner {
  max-width: 1100px;
  margin: 0 auto;
  text-align: center;
}

.footer-company {
  margin: 0 0 12px;
  font-size: 1rem;
  font-weight: 700;
  color: var(--text);
}

.hub-footer address {
  font-style: normal;
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 6px 20px;
  font-size: 0.82rem;
  color: var(--subtext);
  margin-bottom: 16px;
}

.footer-copy {
  margin: 0;
  font-size: 0.82rem;
  color: #4a5568;
}

/* ===== RESPONSIVE ===== */
@media (max-width: 1100px) {
  .artist-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 860px) {
  .about-inner {
    grid-template-columns: 1fr;
    gap: 32px;
  }

  .about-stats {
    justify-content: center;
  }
}

@media (max-width: 600px) {
  .artist-grid {
    grid-template-columns: 1fr;
    gap: 16px;
  }

  .hub-header {
    min-height: 320px;
    padding: 64px 20px 56px;
  }

  .mob-br { display: inline; }

  .artists-section {
    padding: 48px 16px 60px;
  }

  .card-img-wrap {
    aspect-ratio: 16 / 9;
  }
}