:root {
  --font-main: "Noto Sans JP", system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  --color-bg: #f3f4f6;
  --color-primary: #1e6f8f;
  --color-accent: #f59e0b;
  --color-text-main: #1f2933;
  --color-text-muted: #4b5563;
  --shadow-soft: 0 18px 45px rgba(15, 23, 42, 0.18);
  --radius-large: 18px;
}

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

html,
body {
  margin: 0;
  padding: 0;
}

body {
  font-family: var(--font-main);
  background: radial-gradient(circle at top, #e0f2fe 0, #fdfcfb 50%, #fef3c7 100%);
  color: var(--color-text-main);
}

.page {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

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

/* =========================
   番組概要セクション
   ========================= */
.program-intro {
  position: relative;
  padding: 56px 16px 72px;
  overflow: hidden;
  /* グラデーション + 模様の背景 */
  background:
    radial-gradient(circle at 20% 30%, rgba(254, 243, 199, 0.6) 0%, transparent 45%),
    radial-gradient(circle at 80% 70%, rgba(219, 234, 254, 0.5) 0%, transparent 45%),
    linear-gradient(180deg, #fefce8 0%, #fffbeb 30%, #fef3c7 60%, #fef9c3 100%);
}

.program-intro::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image: radial-gradient(rgba(234, 179, 8, 0.06) 1.5px, transparent 1.5px);
  background-size: 24px 24px;
  pointer-events: none;
}

.program-intro__inner {
  position: relative;
  max-width: 920px;
  margin: 0 auto;
  padding: 40px 36px 48px;
  background: rgba(255, 255, 255, 0.75);
  border-radius: 20px;
  text-align: center;
  box-shadow:
    0 4px 24px rgba(15, 23, 42, 0.06),
    0 1px 0 rgba(255, 255, 255, 0.8) inset;
  backdrop-filter: blur(12px);
}

.program-intro__eyebrow {
  margin: 0 0 28px;
  font-size: 1.05rem;
  line-height: 1.8;
  font-weight: 500;
}

.program-intro__eyebrow-em {
  display: inline-block;
  margin-top: 4px;
  font-size: 1.15rem;
  font-weight: 700;
  color: #e11d48;
}

.program-intro__pref-row {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 18px;
  margin-bottom: 28px;
}

.program-intro__pref {
  display: flex;
  align-items: center;
  justify-content: center;
  min-width: 120px;
}

.program-intro__pref-img {
  max-width: 180px;
  height: auto;
  object-fit: contain;
}

.program-intro__map {
  width: 120px;
  height: 72px;
  background-image: url("images/map.png");
  background-size: contain;
  background-repeat: no-repeat;
  background-position: center;
}

.program-intro__headline {
  margin: 0 0 16px;
  font-size: 1.5rem;
  font-weight: 800;
  line-height: 1.6;
  letter-spacing: 0.04em;
}

.program-intro__headline-em {
  color: #ea580c;
  font-size: 1.15em;
}

.program-intro__subheadline {
  margin: 0 0 28px;
  font-size: 1.2rem;
  font-weight: 800;
  line-height: 1.7;
  letter-spacing: 0.03em;
}

.program-intro__subheadline-em {
  display: inline-block;
  padding: 2px 10px;
  margin-inline: 4px;
  background: #ef4444;
  color: #ffffff;
  border-radius: 6px;
  font-size: 1.1em;
}

.program-intro__body {
  margin: 0;
  font-size: 1.05rem;
  line-height: 2;
  color: #1f2933;
  font-weight: 600;
  letter-spacing: 0.02em;
}

@media (max-width: 768px) {
  .program-intro {
    padding: 40px 14px 48px;
  }

  .program-intro__eyebrow {
    font-size: 0.95rem;
  }

  .program-intro__headline {
    font-size: 1.25rem;
  }

  .program-intro__subheadline {
    font-size: 1.05rem;
  }

  .program-intro__body {
    font-size: 0.95rem;
    line-height: 1.9;
  }

  .program-intro__pref-img {
    max-width: 160px;
  }

  .program-intro__map {
    width: 140px;
    height: 80px;
  }
}

@media (max-width: 480px) {
  .program-intro {
    padding: 32px 12px 40px;
  }

  .program-intro__inner {
    padding: 28px 18px 32px;
  }

  .program-intro__headline {
    font-size: 1.1rem;
    line-height: 1.6;
  }

  .program-intro__subheadline {
    font-size: 0.98rem;
    line-height: 1.6;
  }

  .program-intro__body {
    font-size: 0.9rem;
    line-height: 1.8;
  }
}

/* =========================
   フッター
   ========================= */
.footer {
  padding: 24px 16px 32px;
  background: #1f2933;
  color: #9ca3af;
}

.footer__inner {
  max-width: 980px;
  margin: 0 auto;
  text-align: center;
}

.footer__copy {
  margin: 0;
  font-size: 0.8rem;
  letter-spacing: 0.02em;
}

.hero {
  position: relative;
  height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 32px 20px 56px;
  overflow: hidden;
}

.hero__bg {
  position: absolute;
  inset: 0;
  background-image: url("images/bg.jpg");
  background-size: cover;
  background-repeat: no-repeat;
  background-position: center center;
}

/* 道路（斜め上から見た奥行きのある形状） */
.hero__road {
  position: absolute;
  left: 0;
  bottom: 0;
  width: 100%;
  height: 25vh;
  min-height: 100px;
  background: linear-gradient(to bottom, #5a5248 0%, #3d382f 100%);
  pointer-events: none;
  transform-origin: bottom center;
  transform: perspective(600px) rotateX(50deg);
}

/* 中央線（右から左へ流れて走行感を演出） */
.hero__road-line {
  position: absolute;
  left: 0;
  top: 50%;
  transform: translateY(-50%);
  width: 100%;
  height: 4px;
  background: repeating-linear-gradient(
    90deg,
    #e8e0c8 0,
    #e8e0c8 24px,
    transparent 24px,
    transparent 48px
  );
  background-size: 48px 4px;
  animation: road-flow 1.2s linear infinite;
}

@keyframes road-flow {
  from { background-position-x: 0; }
  to   { background-position-x: -48px; }
}

.hero__car {
  position: absolute;
  bottom: 7vh;
  left: 12vw;
  width: min(80vw, 280px);
  aspect-ratio: 16 / 9;
  background-image: url("images/car.png");
  background-size: contain;
  background-repeat: no-repeat;
  background-position: center bottom;
  animation: car-bounce 0.8s ease-in-out infinite alternate;
  will-change: transform;
  pointer-events: none;
}

@keyframes car-bounce {
  0% {
    transform: translateY(0);
  }
  50% {
    transform: translateY(-6px);
  }
  100% {
    transform: translateY(-10px);
  }
}

/* title.png 中央配置 + 浮かび上がりエフェクト */
.hero__title-img {
  position: absolute;
  top: 55%;
  left: 50%;
  width: min(70vw, 800px);
  aspect-ratio: 3 / 1;
  background-image: url("images/title.png");
  background-size: contain;
  background-repeat: no-repeat;
  background-position: center;
  pointer-events: none;
  z-index: 2;
  opacity: 0;
  animation: float-up-title 1s ease-out 0.3s forwards;
}

@media (max-width: 600px) {
  .hero__title-img {
    top: 40%;
    width: min(100vw, 600px);
  }
}

@keyframes float-up-title {
  0% {
    opacity: 0;
    transform: translate(-50%, calc(-50% + 50px));
  }
  100% {
    opacity: 1;
    transform: translate(-50%, -50%);
  }
}

/* due.png 中央下配置 + 浮かび上がりエフェクト */
.hero__due {
  position: absolute;
  bottom: 10%;
  left: 50%;
  width: min(80vw, 300px);
  aspect-ratio: 3 / 1;
  background-image: url("images/due.png");
  background-size: contain;
  background-repeat: no-repeat;
  background-position: center bottom;
  pointer-events: none;
  opacity: 0;
  animation: float-up-due 1s ease-out 0.8s forwards;
}

@keyframes float-up-due {
  0% {
    opacity: 0;
    transform: translate(-50%, 40px);
  }
  100% {
    opacity: 1;
    transform: translate(-50%, 0);
  }
}

/* due.png 中央下配置 */
@media (max-width: 600px) {
  .hero__due {
    bottom: 30%;
    width: min(80vw, 250px);
  }
}

.hero__cast {
  position: absolute;
  top: 10%;
  left: 50%;
  transform: translateX(-50%);
  width: min(100%, 960px);
  display: flex;
  justify-content: space-between;
  pointer-events: none;
}

.hero__cast-photo {
  width: min(35vw, 260px);
  aspect-ratio: 3 / 4;
  background-size: contain;
  background-repeat: no-repeat;
  background-position: center;
  animation: cast-sway 2.5s ease-in-out infinite alternate;
}

.hero__cast-photo--left {
  background-image: url("images/fukuda.png");
}

.hero__cast-photo--right {
  background-image: url("images/mashiko.png");
  animation-delay: 0.3s;
}

@keyframes cast-sway {
  0% {
    transform: rotate(-6deg);
  }
  100% {
    transform: rotate(6deg);
  }
}

.hero__logo {
  position: absolute;
  top: 6%;
  left: 50%;
  transform: translateX(-50%);
  width: min(50vw, 420px);
  aspect-ratio: 5 / 1;
  background-image: url("images/kfb_ux.png");
  background-size: contain;
  background-repeat: no-repeat;
  background-position: center;
  pointer-events: none;
}

.hero__overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(
    to bottom,
    rgba(15, 23, 42, 0.25),
    rgba(15, 23, 42, 0.6)
  );
}

.hero__content {
  position: relative;
  z-index: 2;
  max-width: 1100px;
  width: 100%;
  margin: 0 auto;
  padding: 28px 28px 32px;
  border-radius: 24px;
  backdrop-filter: blur(18px);
  background: linear-gradient(135deg, rgba(255, 255, 255, 0.82), rgba(255, 255, 255, 0.9));
  box-shadow: var(--shadow-soft);
  display: grid;
  grid-template-columns: minmax(0, 3fr) minmax(0, 2fr);
  gap: 32px;
}

.hero__logo-area {
  color: var(--color-text-main);
}

.hero__stations {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 6px 14px;
  border-radius: 999px;
  background: rgba(15, 23, 42, 0.04);
  font-size: 0.85rem;
  font-weight: 600;
  letter-spacing: 0.02em;
  margin-bottom: 14px;
}

.hero__station.kfb {
  color: #0284c7;
}

.hero__station.ux {
  color: #e11d48;
}

.hero__divider {
  color: #94a3b8;
}

.hero__tagline {
  margin: 0 0 4px;
  font-weight: 500;
  font-size: 1.1rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: #4b5563;
}

.hero__title {
  margin: 0 0 10px;
  font-size: clamp(2.1rem, 2.4vw + 1.6rem, 2.8rem);
  line-height: 1.2;
}

.hero__subtitle {
  margin: 0;
  font-size: 0.98rem;
  color: var(--color-text-muted);
}

.hero__info-card {
  align-self: center;
  padding: 18px 22px 18px;
  border-radius: var(--radius-large);
  background: radial-gradient(circle at top left, rgba(250, 250, 249, 0.9), rgba(254, 243, 199, 0.95));
  border: 1px solid rgba(248, 250, 252, 0.9);
  box-shadow: 0 18px 40px rgba(124, 45, 18, 0.18);
}

.hero__onair-label {
  margin: 0 0 6px;
  font-weight: 800;
  letter-spacing: 0.16em;
  font-size: 0.9rem;
  text-transform: uppercase;
  color: #b45309;
}

.hero__onair-detail {
  margin: 0;
  font-size: 0.92rem;
  color: #78350f;
}

.hero__note {
  position: relative;
  z-index: 2;
  margin: 10px auto 0;
  max-width: 1100px;
  font-size: 0.72rem;
  color: rgba(15, 23, 42, 0.7);
}

/* Responsive */
@media (max-width: 900px) {
  .hero {
    padding-inline: 16px;
  }
}

@media (max-width: 600px) {
  .hero {
    min-height: 80vh;
  }
}