/* ==============================================
   event.css
   OFFBEAT Event Production Page Styles
   ============================================== */

/* ----------------------------------------------
   Inner Page Base
   ---------------------------------------------- */
.ob-inner-page {
  --bg: #f7f7f5;
  --paper: #ffffff;
  --text: #222222;
  --muted: #666666;
  --line: rgba(0, 0, 0, .08);
  --accent: #EFA25C;
  --accent-light: rgba(239, 162, 92, .12);
  --accent-border: rgba(239, 162, 92, .6);
  background: var(--bg);
  color: var(--text);
}

/* ----------------------------------------------
   Inner Hero
   ---------------------------------------------- */
.ob-inner-hero {
  position: relative;
  overflow: hidden;
  padding: clamp(80px, 12vw, 140px) 24px clamp(60px, 8vw, 100px);
  border-bottom: 1px solid var(--line);
}

.ob-inner-hero__inner {
  position: relative;
  z-index: 2;
  max-width: 1280px;
  margin: 0 auto;
}

.ob-inner-hero__label {
  font-family: 'Space Grotesk', monospace;
  font-size: 13px;
  font-weight: 600;
  letter-spacing: .12em;
  color: var(--accent);
  margin: 0 0 20px;
}

.ob-inner-hero__title {
  font-family: 'Bebas Neue', sans-serif;
  font-size: clamp(60px, 11vw, 160px);
  line-height: .92;
  letter-spacing: .03em;
  margin: 0 0 clamp(24px, 4vw, 40px);
  font-weight: 400;
  color: var(--text);
}

.ob-inner-hero__title--accent {
  color: var(--accent);
}

.ob-inner-hero__sub {
  font-size: clamp(16px, 2.5vw, 22px);
  color: var(--muted);
  line-height: 1.9;
  margin: 0;
}

.ob-inner-hero__bg-text {
  position: absolute;
  right: -20px;
  top: 50%;
  transform: translateY(-50%);
  font-family: 'Bebas Neue', sans-serif;
  font-size: clamp(180px, 30vw, 420px);
  line-height: 1;
  color: rgba(0, 0, 0, .04);
  pointer-events: none;
  user-select: none;
  z-index: 1;
  white-space: nowrap;
}

/* ----------------------------------------------
   Section utility
   ---------------------------------------------- */
.ob-section--gray {
  background: rgba(0, 0, 0, .02);
}

/* ----------------------------------------------
   Concept Section — テキスト主体、余白たっぷり
   ---------------------------------------------- */
.ob-event-concept {
  padding: clamp(80px, 14vw, 160px) 24px;
  background: var(--text);
  position: relative;
  overflow: hidden;
}

.ob-event-concept::before {
  content: "OFFBEAT";
  position: absolute;
  bottom: -40px;
  left: -20px;
  font-family: 'Bebas Neue', sans-serif;
  font-size: clamp(100px, 18vw, 260px);
  line-height: 1;
  color: rgba(255, 255, 255, .04);
  pointer-events: none;
  user-select: none;
  white-space: nowrap;
}

.ob-event-concept__inner {
  position: relative;
  z-index: 2;
  max-width: 900px;
  margin: 0 auto;
}

.ob-event-concept__label {
  font-size: 12px;
  font-weight: 600;
  letter-spacing: .14em;
  color: var(--accent);
  margin: 0 0 32px;
}

.ob-event-concept__body {
  font-family: 'Bebas Neue', sans-serif;
  font-size: clamp(36px, 6vw, 72px);
  line-height: 1.3;
  letter-spacing: .04em;
  color: #fff;
  margin: 0 0 clamp(32px, 5vw, 56px);
  font-weight: 400;
}

.ob-event-concept__sub {
  font-size: clamp(14px, 1.8vw, 18px);
  color: rgba(255, 255, 255, .55);
  line-height: 2;
  margin: 0;
  border-left: 3px solid var(--accent);
  padding-left: 24px;
}

/* ----------------------------------------------
   Venue Cards
   ---------------------------------------------- */
.ob-venue-cards {
  max-width: 1280px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
}

.ob-venue-card {
  background: var(--paper);
  border: 1px solid var(--line);
  border-radius: 20px;
  padding: clamp(28px, 4vw, 40px);
  transition: all .3s ease;
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.ob-venue-card:hover {
  transform: translateY(-6px);
  box-shadow: 0 16px 48px rgba(0, 0, 0, .08);
  border-color: var(--accent-border);
}

.ob-venue-card__icon {
  width: 52px;
  height: 52px;
  border-radius: 14px;
  background: var(--accent-light);
  color: var(--accent);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

.ob-venue-card__title {
  font-size: 18px;
  font-weight: 700;
  margin: 0;
  letter-spacing: .04em;
}

.ob-venue-card__text {
  font-size: 14px;
  color: var(--muted);
  line-height: 1.8;
  margin: 0;
}

/* ----------------------------------------------
   Flow Steps
   ---------------------------------------------- */
.ob-flow {
  max-width: 680px;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  align-items: stretch;
}

.ob-flow__item {
  display: grid;
  grid-template-columns: clamp(60px, 8vw, 80px) 1fr;
  gap: clamp(20px, 3vw, 36px);
  padding: clamp(28px, 4vw, 40px) 0;
  border-top: 1px solid var(--line);
  transition: all .3s ease;
}

.ob-flow__item:first-of-type {
  border-top: none;
}

.ob-flow__num {
  font-family: 'Bebas Neue', sans-serif;
  font-size: clamp(48px, 7vw, 72px);
  line-height: 1;
  color: var(--accent);
  opacity: .5;
}

.ob-flow__title {
  font-size: 18px;
  font-weight: 700;
  margin: 0 0 10px;
  letter-spacing: .04em;
}

.ob-flow__text {
  font-size: 14px;
  color: var(--muted);
  line-height: 1.9;
  margin: 0;
}

.ob-flow__arrow {
  text-align: left;
  padding-left: clamp(22px, 3.5vw, 32px);
  font-family: 'Bebas Neue', sans-serif;
  font-size: 28px;
  color: var(--accent);
  opacity: .4;
  line-height: 1;
  margin: -8px 0;
}

/* ----------------------------------------------
   CTA (Dark)
   ---------------------------------------------- */
.ob-cta {
  background: var(--text);
  padding: clamp(60px, 10vw, 100px) 24px;
  text-align: center;
}

.ob-cta__inner {
  max-width: 700px;
  margin: 0 auto;
}

.ob-cta__label {
  font-size: 12px;
  font-weight: 600;
  letter-spacing: .12em;
  color: var(--accent);
  margin: 0 0 20px;
}

.ob-cta__title {
  font-family: 'Bebas Neue', sans-serif;
  font-size: clamp(48px, 8vw, 80px);
  letter-spacing: .04em;
  color: #fff;
  margin: 0 0 20px;
  font-weight: 400;
}

.ob-cta__text {
  font-size: 15px;
  color: rgba(255, 255, 255, .6);
  line-height: 1.8;
  margin: 0 0 40px;
}

.ob-cta__btns {
  display: flex;
  gap: 16px;
  justify-content: center;
  flex-wrap: wrap;
}

.ob-cta .ob-btn {
  background: transparent;
  border-color: rgba(255, 255, 255, .2);
  color: #fff;
}

.ob-cta .ob-btn:hover {
  border-color: rgba(255, 255, 255, .5);
  background: rgba(255, 255, 255, .08);
}

.ob-cta .ob-btn--accent {
  background: var(--accent);
  border-color: var(--accent);
  color: #fff;
}

.ob-cta .ob-btn--accent:hover {
  background: #d4863e;
  border-color: #d4863e;
}

.ob-cta .ob-btn--line {
  background: rgba(239, 162, 92, .15);
  border-color: var(--accent-border);
  color: var(--accent);
}

.ob-btn--accent {
  background: var(--accent);
  border-color: var(--accent);
  color: #fff;
}

.ob-btn--accent:hover {
  background: #d4863e;
  border-color: #d4863e;
  color: #fff;
}

/* ----------------------------------------------
   Responsive
   ---------------------------------------------- */
@media (max-width: 899px) {
  .ob-venue-cards {
    grid-template-columns: 1fr;
    max-width: 480px;
  }

  .ob-event-concept__sub {
    border-left: none;
    padding-left: 0;
    border-top: 3px solid var(--accent);
    padding-top: 20px;
  }
}

@media (max-width: 640px) {
  .ob-inner-hero__bg-text {
    opacity: .5;
  }

  .ob-flow__item {
    grid-template-columns: 50px 1fr;
    gap: 16px;
  }
}