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

html, body {
  height: 100%;
}

body {
  background-color: #080a0f;
  color: #e8e4e0;
  font-family: 'Spectral', Georgia, serif;
  font-size: 14px;
  overflow-x: hidden;
}

/* --- Background --- */
.bg-fixed {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  z-index: -2;
  background: url('../images/background.jpg') center center / cover no-repeat;
}

.bg-overlay {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  z-index: -1;
  background: rgba(0, 0, 0, 0.65);
}

/* --- Main Layout --- */
.main-container {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  align-items: center;
  padding: 40px 20px 60px;
}

/* --- Title --- */
.page-title {
  text-align: center;
  margin-bottom: 50px;
}

.page-title h1 {
  font-family: 'Spectral', Georgia, serif;
  font-weight: 500;
  font-size: 2.2em;
  text-transform: uppercase;
  letter-spacing: 2px;
  color: #fff;
  text-shadow: 0 0 20px rgba(101, 176, 216, 0.4), 0 2px 4px rgba(0, 0, 0, 0.8);
}

.page-title .subtitle {
  font-size: 0.95em;
  color: #65b0d8;
  margin-top: 8px;
  letter-spacing: 4px;
  text-transform: uppercase;
}

.title-hr {
  width: 200px;
  height: 2px;
  margin: 16px auto 0;
  background: linear-gradient(
    90deg,
    transparent,
    #65b0d8 30%,
    #98dbff 50%,
    #65b0d8 70%,
    transparent
  );
  border: none;
}

/* --- Card Grid --- */
.card-grid {
  display: flex;
  justify-content: center;
  gap: 24px;
  flex-wrap: nowrap;
  max-width: 1100px;
}

/* --- Character Card (wiki_table inspired) --- */
.character-card {
  position: relative;
  flex: 0 0 280px;
  width: 280px;
  background: #060a14e8;
  filter: drop-shadow(0 0 8px rgba(0, 0, 0, 0.7));
  cursor: pointer;
  transition: transform 0.3s ease, filter 0.3s ease;

  /* Border-image mimic: layered borders */
  border: 2px solid transparent;
  border-image: linear-gradient(
    160deg,
    #3a5f7a 0%,
    #1a2a3a 30%,
    #0d1520 60%,
    #1a2a3a 80%,
    #3a5f7a 100%
  ) 1;
}

.character-card::before {
  content: '';
  position: absolute;
  inset: -6px;
  border: 1px solid rgba(101, 176, 216, 0.15);
  pointer-events: none;
  z-index: 1;
}

.character-card::after {
  content: '';
  position: absolute;
  inset: 0;
  border: 1px solid rgba(101, 176, 216, 0.08);
  pointer-events: none;
  z-index: 1;
}

.character-card:hover {
  transform: translateY(-6px);
  filter: drop-shadow(0 0 16px rgba(101, 176, 216, 0.3));
}

.character-card:hover .card-inner {
  background: #3b496320;
}

/* --- Card Inner Wrapper --- */
.card-inner {
  position: relative;
  transition: background 0.3s ease;
}

/* --- Portrait Area --- */
.card-portrait {
  position: relative;
  width: 100%;
  height: 300px;
  display: flex;
  align-items: flex-end;
  justify-content: center;
  overflow: hidden;
  background: radial-gradient(
    ellipse at 50% 80%,
    rgba(101, 176, 216, 0.06) 0%,
    transparent 70%
  );
  margin-bottom: -20px;
}

.card-portrait img {
  max-height: 290px;
  width: 100%;
  object-fit: contain;
  object-position: bottom center;
  display: block;
  filter: drop-shadow(0 4px 12px rgba(0, 0, 0, 0.6));
  transition: transform 0.4s ease;
  /* Bottom 40px hidden + 50px fade above it */
  -webkit-mask-image: linear-gradient(to bottom, black calc(100% - 90px), transparent calc(100% - 40px), transparent);
  mask-image: linear-gradient(to bottom, black calc(100% - 90px), transparent calc(100% - 40px), transparent);
}

.character-card:hover .card-portrait img {
  transform: scale(1.04);
}

/* --- Row Separator (nightreign-infobox-hr.png style) --- */
.card-separator {
  width: 100%;
  height: 3px;
  background: linear-gradient(
    90deg,
    transparent 5%,
    rgba(101, 176, 216, 0.1) 15%,
    rgba(101, 176, 216, 0.35) 40%,
    rgba(152, 219, 255, 0.5) 50%,
    rgba(101, 176, 216, 0.35) 60%,
    rgba(101, 176, 216, 0.1) 85%,
    transparent 95%
  );
}

/* --- Card Info Area --- */
.card-info {
  padding: 18px 20px 0;
  text-align: center;
}

.card-info .character-name {
  font-family: 'Spectral', Georgia, serif;
  font-weight: 500;
  font-size: 1.5em;
  text-transform: uppercase;
  letter-spacing: 1px;
  color: #fff;
  text-shadow: 2px 1px 2px #000;
  margin: 0;
}

/* --- Reload Button (PC: card bottom center) --- */
.reload-btn {
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto;
  padding: 10px 0 14px;
  width: 100%;
  background: none;
  border: none;
  cursor: pointer;
  z-index: 2;
}

.reload-btn img {
  width: 30px;
  height: 30px;
  /* Black → deep blue accent */
  filter: invert(68%) sepia(30%) saturate(600%) hue-rotate(170deg) brightness(85%) contrast(95%);
  opacity: 0.9;
}

/* --- Unselected State --- */
.is-unselected .card-portrait img {
  opacity: 0.4;
  /* All-edges 70px fade (PC), bottom 20px hidden */
  -webkit-mask-image:
    linear-gradient(to bottom, transparent, black 70px, black calc(100% - 90px), transparent calc(100% - 20px), transparent),
    linear-gradient(to right, transparent, black 70px, black calc(100% - 70px), transparent);
  -webkit-mask-composite: source-in;
  mask-image:
    linear-gradient(to bottom, transparent, black 70px, black calc(100% - 90px), transparent calc(100% - 20px), transparent),
    linear-gradient(to right, transparent, black 70px, black calc(100% - 70px), transparent);
  mask-composite: intersect;
}

.lang-ja .card-info .character-name {
  color: rgba(255, 255, 255, 0.78);
}

.is-unselected .card-info .character-name {
  color: rgba(255, 255, 255, 0.4);
}

/* --- Controls (DLC Toggle + Randomize All) --- */
.controls-wrap {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 16px;
  margin-top: 36px;
}

.randomize-all-btn {
  padding: 14px 48px;
  background: rgba(6, 10, 20, 0.85);
  border: 1px solid rgba(101, 176, 216, 0.35);
  color: rgba(152, 219, 255, 0.9);
  font-family: 'Spectral', Georgia, serif;
  font-size: 1em;
  text-transform: uppercase;
  letter-spacing: 2px;
  cursor: pointer;
  transition: background 0.3s ease, border-color 0.3s ease, color 0.3s ease;
}

.randomize-all-btn:hover {
  background: rgba(101, 176, 216, 0.12);
  border-color: rgba(101, 176, 216, 0.6);
  color: #98dbff;
}

@media (min-width: 931px) {
  .randomize-all-btn {
    font-size: 1.5em;
  }
}

/* --- DLC Toggle --- */
.dlc-toggle {
  display: flex;
  align-items: center;
  gap: 8px;
  cursor: pointer;
  user-select: none;
  opacity: 0.8;
}

.dlc-toggle input {
  display: none;
}

.dlc-toggle-slider {
  position: relative;
  width: 40px;
  height: 22px;
  background: rgba(255, 255, 255, 0.15);
  border: 1px solid rgba(101, 176, 216, 0.9);
  border-radius: 11px;
  transition: background 0.3s ease, border-color 0.3s ease;
}

.dlc-toggle-slider::after {
  content: '';
  position: absolute;
  top: 2px;
  left: 2px;
  width: 16px;
  height: 16px;
  background: rgba(200, 200, 200, 0.7);
  border-radius: 50%;
  transition: transform 0.3s ease, background 0.3s ease;
}

.dlc-toggle input:checked + .dlc-toggle-slider {
  background: rgba(101, 176, 216, 0.4);
  border-color: rgba(101, 176, 216, 0.9);
}

.dlc-toggle input:checked + .dlc-toggle-slider::after {
  transform: translateX(18px);
  background: rgba(152, 219, 255, 0.9);
}

.dlc-toggle-label {
  font-family: 'Spectral', Georgia, serif;
  font-size: 0.85em;
  text-transform: uppercase;
  letter-spacing: 1px;
  color: rgba(152, 219, 255, 0.9);
}

@media (min-width: 931px) {
  .dlc-toggle-label {
    font-size: 1em;
  }
}

/* --- Responsive: Tablet (930px以下) --- */
@media (max-width: 930px) {
  .main-container {
    padding: 32px 20px 50px;
  }

  .page-title {
    margin-bottom: 36px;
  }

  .page-title h1 {
    font-size: 1.8em;
  }

  .card-grid {
    flex-wrap: wrap;
    gap: 20px;
    max-width: 500px;
  }

  .character-card {
    flex: 0 0 calc(50% - 10px);
    width: auto;
    min-width: 0;
  }

  /* Reorder: name on top, portrait below */
  .card-inner {
    display: flex;
    flex-direction: column;
  }

  .card-info {
    order: -1;
    padding: 14px 12px 10px;
  }

  .card-info .character-name {
    font-size: 1.2em;
  }

  .card-separator {
    order: 0;
  }

  .card-portrait {
    order: 1;
    height: 200px;
    align-items: flex-start;
    padding: 12px;
    margin-bottom: 0;
  }

  .card-portrait img {
    max-height: none;
    height: 100%;
    width: 100%;
    object-fit: cover;
    object-position: top center;
    /* Bottom 40px fade to transparent → card bg shows through */
    -webkit-mask-image: linear-gradient(to bottom, black calc(100% - 40px), transparent);
    mask-image: linear-gradient(to bottom, black calc(100% - 40px), transparent);
  }

  /* Unselected: all-edges 40px fade */
  .is-unselected .card-portrait img {
    -webkit-mask-image:
      linear-gradient(to bottom, transparent, black 40px, black calc(100% - 40px), transparent),
      linear-gradient(to right, transparent, black 40px, black calc(100% - 40px), transparent);
    -webkit-mask-composite: source-in;
    mask-image:
      linear-gradient(to bottom, transparent, black 40px, black calc(100% - 40px), transparent),
      linear-gradient(to right, transparent, black 40px, black calc(100% - 40px), transparent);
    mask-composite: intersect;
  }

  /* Unselected reload button: centered overlay */
  .is-unselected .reload-btn {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 100%;
    padding: 0;
    z-index: 3;
    background: none;
    border-radius: 0;
    right: auto;
    height: auto;
  }

  .is-unselected .reload-btn img {
    width: 45px;
    height: 45px;
  }

  /* Reload button: portrait top-right overlay */
  .reload-btn {
    position: absolute;
    top: 50px;
    right: 4px;
    margin: 0;
    padding: 0;
    width: 60px;
    height: 60px;
    border-radius: 50%;
    background: radial-gradient(circle, rgba(6, 10, 20, 0.75) 35%, transparent 70%);
  }

  .reload-btn img {
    width: 32px;
    height: 32px;
  }
}

/* --- Responsive: SP (480px以下) --- */
@media (max-width: 480px) {
  .main-container {
    padding: 20px 20px 40px;
  }

  .page-title {
    margin-bottom: 24px;
  }

  .page-title h1 {
    font-size: 1.4em;
  }

  .card-grid {
    max-width: none;
  }

  .card-info {
    padding: 10px 8px 6px;
  }

  .card-info .character-name {
    font-size: 0.95em;
  }

  .card-portrait {
    height: 130px;
    padding: 8px;
  }

  .reload-btn {
    top: 45px;
    width: 50px;
    height: 40px;
  }
}