/* Sakaihama Keirin Feature Page */
:root {
  --sk-font-main: "Helvetica Neue", Arial, "Hiragino Kaku Gothic ProN", "Hiragino Sans", Meiryo, sans-serif;
  --sk-color-bg: #f9f9f9;
  --sk-color-surface: #ffffff;
  --sk-color-text: #333;
  --sk-color-muted: #666;
  --sk-color-accent: #d0184b;
  --sk-color-ss: #d32f2f;
  --sk-color-ss-dark: #9a0007;
  --sk-color-border: #e6e6e6;
  --sk-shadow-soft: 0 2px 10px rgba(0, 0, 0, 0.05);
  --sk-shadow-card: 0 4px 10px rgba(0, 0, 0, 0.1);
  --sk-shadow-hero: 0 4px 15px rgba(0, 0, 0, 0.2);
  --sk-radius: 8px;
}

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

/* body {
  margin: 0;
  padding: 0;
  background: #e0e0e0;
  color: var(--sk-color-text);
  font-family: var(--sk-font-main);
} */

.sk-keirin-feature {
  margin: 0 auto;
  padding: 20px;
  /* background-color: var(--sk-color-bg); */
  line-height: 1.6;
}

@media (max-width: 600px) {
  .sk-keirin-feature br {
    display: none;
  }
}

/* Hero */
.sk-keirin-feature__hero {
  position: relative;
  width: 100%;
  margin-bottom: 40px;
  border-radius: var(--sk-radius);
  overflow: hidden;
  box-shadow: var(--sk-shadow-hero);
}

.sk-keirin-feature__hero-image {
  width: 100%;
  height: auto;
  display: block;
  /* min-height: 300px; */
  background-color: #222;
}

.sk-keirin-feature__hero-text {
  position: absolute;
  bottom: 20px;
  left: 20px;
  background: rgba(0, 0, 0, 0.7);
  color: var(--sk-color-surface);
  padding: 15px 25px;
  border-left: 5px solid var(--sk-color-accent);
}

.sk-keirin-feature__hero-title {
  font-size: 2.5em;
  font-weight: 700;
  margin: 0;
  line-height: 1.2;
  text-transform: uppercase;
  font-style: italic;
}

.sk-keirin-feature__hero-subtitle {
  font-size: 1.2em;
  margin-top: 5px;
  opacity: 0.9;
}

/* Intro */
.sk-keirin-feature__intro {
  background: var(--sk-color-surface);
  padding: 30px;
  border-radius: var(--sk-radius);
  margin-bottom: 40px;
  box-shadow: var(--sk-shadow-soft);
  border-top: 4px solid #333;
}

.sk-keirin-feature__intro h2 {
  font-size: 1.8em;
  margin-top: 0;
  margin-bottom: 20px;
  border-bottom: 2px solid #ddd;
  padding-bottom: 10px;
}

.sk-keirin-feature__intro p {
  margin-bottom: 1em;
  font-size: 1.05em;
}

/* Section headings */
.sk-keirin-feature__section-title {
  font-size: 2em;
  text-align: center;
  margin: 50px 0 30px;
  position: relative;
  font-weight: 800;
  color: #222;
}

.sk-keirin-feature__section-title::after {
  content: "";
  display: block;
  width: 60px;
  height: 3px;
  background: var(--sk-color-accent);
  margin: 10px auto 0;
}

/* Grid */
.sk-keirin-feature__grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
  gap: 25px;
  margin-bottom: 40px;
}

.sk-keirin-feature__grid--ss {
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
}

/* Card */
.sk-keirin-feature__card {
  background: var(--sk-color-surface);
  border-radius: var(--sk-radius);
  overflow: hidden;
  box-shadow: var(--sk-shadow-card);
  border: 1px solid var(--sk-color-border);
  display: flex;
  flex-direction: column;
}

.sk-keirin-feature__card--ss {
  border: 3px solid var(--sk-color-ss);
}

.sk-keirin-feature__card-header {
  background: #333;
  color: var(--sk-color-surface);
  padding: 15px;
  position: relative;
}

.sk-keirin-feature__card--ss .sk-keirin-feature__card-header {
  background: linear-gradient(135deg, var(--sk-color-ss) 0%, var(--sk-color-ss-dark) 100%);
  overflow: hidden;
}

.sk-keirin-feature__card--ss .sk-keirin-feature__card-header::after {
  content: "★";
  position: absolute;
  top: 50%;
  right: 30px;
  transform: translateY(-50%) rotate(15deg);
  font-size: 120px;
  color: #fff;
  opacity: 0.14;
  line-height: 1;
  z-index: 1;
  pointer-events: none;
}

.sk-keirin-feature__card--ss .sk-keirin-feature__card-header > :not(.sk-keirin-feature__card-tier) {
  position: relative;
  z-index: 2;
}

.sk-keirin-feature__card-tier {
  position: absolute;
  top: 10px;
  right: 10px;
  background: var(--sk-color-surface);
  color: #000;
  padding: 2px 8px;
  font-size: 0.8em;
  font-weight: 700;
  border-radius: 4px;
  z-index: 3;
}

.sk-keirin-feature__card--ss .sk-keirin-feature__card-tier {
  color: var(--sk-color-ss);
  box-shadow: 0 2px 4px rgba(0, 0, 0, 0.2);
}

.sk-keirin-feature__card-name {
  font-size: 1.4em;
  font-weight: 700;
  margin: 0;
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 6px;
  padding-right: 56px;
}

.sk-keirin-feature__card-badge {
  display: inline-flex;
  align-items: center;
  padding: 4px 10px;
  border-radius: 999px;
  font-size: 0.56em;
  font-weight: 700;
  line-height: 1;
  letter-spacing: 0.02em;
  white-space: nowrap;
  color: #3d2600;
  background: linear-gradient(135deg, #ffd66b 0%, #ffb347 100%);
  box-shadow: 0 1px 4px rgba(0, 0, 0, 0.22);
}

.sk-keirin-feature__card-meta {
  font-size: 0.8em;
  opacity: 0.8;
  display: block;
}

.sk-keirin-feature__card-body {
  padding: 20px;
  flex: 1;
  display: flex;
  flex-direction: column;
}

.sk-keirin-feature__catchcopy {
  font-size: 1.1em;
  font-weight: 700;
  color: var(--sk-color-accent);
  margin-bottom: 15px;
  line-height: 1.4;
  text-align: center;
  border-bottom: 1px dashed #ddd;
  padding-bottom: 15px;
}

.sk-keirin-feature__stats {
  background: #f4f4f4;
  padding: 15px;
  border-radius: 6px;
  margin-bottom: 15px;
}

.sk-keirin-feature__stats h4 {
  margin: 0 0 10px 0;
  font-size: 0.9em;
  text-transform: uppercase;
  color: var(--sk-color-muted);
  letter-spacing: 0.05em;
}

.sk-keirin-feature__stats ul {
  margin: 0;
  padding: 0;
  list-style: none;
}

.sk-keirin-feature__stats li {
  font-size: 0.9em;
  margin-bottom: 8px;
  padding-left: 15px;
  position: relative;
}

.sk-keirin-feature__stats li::before {
  content: "•";
  color: var(--sk-color-accent);
  position: absolute;
  left: 0;
}

.sk-keirin-feature__stats li:last-child {
  margin-bottom: 0;
}

@media (max-width: 600px) {
  .sk-keirin-feature__hero-text {
    bottom: 12px;
    left: 12px;
    padding: 10px 16px;
  }

  .sk-keirin-feature__hero-title {
    font-size: 1.6em;
  }

  .sk-keirin-feature__hero-subtitle {
    font-size: 1em;
  }

  .sk-keirin-feature__catchcopy {
    text-align: left;
  }

  .sk-keirin-feature__grid,
  .sk-keirin-feature__grid--ss {
    grid-template-columns: 1fr;
  }

  .sk-keirin-feature__card-name {
    padding-right: 48px;
  }
}