/* ============================
   BUTSUKARI OJISAN THEME
   ============================ */

:root{
  --yellow: #f6d54a;
  --yellow-deep: #f0c92f;
  --red: #e83b2f;
  --red-deep: #c92a20;

  --ink: #111111;
  --ink-soft: #2a2a2a;
  --paper: #fffaf0;

  --bg: #f2f2f2;
  --card: var(--yellow);

  --shadow: 0 12px 28px rgba(0,0,0,0.18);
  --radius-lg: 22px;
  --radius-md: 16px;
  --radius-sm: 12px;
  --fast: 0.2s ease;
  --mid: 0.3s ease;
}

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

html{scroll-behavior:smooth;}

body{
  font-family: "Zen Maru Gothic","Hiragino Maru Gothic Pro","Yu Gothic",sans-serif;
  line-height: 1.7;
  color: var(--ink);
  background:
    radial-gradient(20px 20px at 20px 20px, rgba(0,0,0,0.04) 0 30%, transparent 31% 100%),
    radial-gradient(20px 20px at 0 0, rgba(0,0,0,0.035) 0 30%, transparent 31% 100%),
    linear-gradient(180deg, #fafafa, var(--bg));
  background-size: 40px 40px, 40px 40px, auto;
  min-height: 100vh;
  padding: 18px;
}

/* Fade Animation */
.fade-in{
  opacity:0;
  transform: translateY(22px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}
.fade-in.visible{
  opacity:1;
  transform: translateY(0);
}

/* Container */
.container{
  max-width: 900px;
  margin: 0 auto;
  background: var(--card);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow);
  border: 4px solid var(--ink);
  overflow: hidden;
}

/* Header */
.header{
  position: relative;
  padding: 56px 32px 34px;
  text-align: center;
  background: linear-gradient(180deg, var(--yellow), var(--yellow-deep));
}

.comic-burst{
  position:absolute;
  inset: -40px -40px auto -40px;
  height: 220px;
  background:
    radial-gradient(circle at 50% 50%, rgba(0,0,0,0.08) 0 38%, transparent 39% 100%),
    repeating-conic-gradient(from 0deg, rgba(0,0,0,0.16) 0 8deg, transparent 8deg 16deg);
  filter: blur(0.2px);
  opacity: 0.55;
  transform: rotate(-2deg);
  pointer-events:none;
}

.app-title{
  position: relative;
  display:inline-block;
  font-size: clamp(2.2rem, 6vw, 3.2rem);
  font-weight: 800;
  letter-spacing: 0.06em;
  color: var(--red);
  -webkit-text-stroke: 3px var(--ink);
  text-shadow:
    4px 4px 0 rgba(0,0,0,0.18);
  padding: 4px 10px;
}

.app-subtitle{
  position: relative;
  margin-top: 14px;
  font-weight: 700;
  color: var(--ink);
  background: rgba(255,255,255,0.65);
  border: 3px solid var(--ink);
  border-radius: 999px;
  padding: 10px 14px;
  display: inline-block;
}

/* Content */
.content{
  background: rgba(255,255,255,0.82);
  padding: 44px 40px 52px;
  border-top: 4px solid var(--ink);
}

/* Sections */
.section{
  margin-bottom: 46px;
  opacity: 0;
  transform: translateY(16px);
  animation: slideUp 0.6s ease forwards;
}

@keyframes slideUp{
  to{opacity:1;transform: translateY(0);}
}

.section-title{
  font-size: clamp(1.4rem, 4vw, 1.9rem);
  font-weight: 900;
  margin-bottom: 18px;
  padding: 8px 12px;
  display: inline-block;
  border: 3px solid var(--ink);
  border-radius: var(--radius-sm);
  background: var(--paper);
  box-shadow: 6px 6px 0 rgba(0,0,0,0.12);
}

.subhead{
  margin-top: 22px;
  font-size: 1.15rem;
  font-weight: 900;
}

.app-info,
.company-info{
  background: var(--paper);
  padding: 26px;
  border-radius: var(--radius-md);
  border: 3px solid var(--ink);
  box-shadow: 8px 8px 0 rgba(0,0,0,0.12);
  margin-bottom: 18px;
}

.lead{
  font-weight: 700;
}

.description-content h3{
  margin-top: 18px;
  font-size: 1.05rem;
  font-weight: 900;
}

.description-content p{
  color: var(--ink-soft);
}

/* Feature List */
.features-list{
  list-style: none;
  padding-left: 0;
  margin-top: 14px;
}

.features-list li{
  padding: 12px 14px 12px 44px;
  position: relative;
  background: rgba(255,255,255,0.7);
  border: 2px solid rgba(0,0,0,0.25);
  border-radius: var(--radius-sm);
  margin-bottom: 10px;
}

.features-list li::before{
  content: "★";
  position: absolute;
  left: 14px;
  top: 10px;
  font-size: 1.2rem;
  color: var(--red);
  -webkit-text-stroke: 1px var(--ink);
}

/* CTA */
.cta{
  margin-top: 26px;
  text-align: center;
  background: var(--paper);
  border: 3px solid var(--ink);
  border-radius: var(--radius-md);
  padding: 22px 18px;
  box-shadow: 8px 8px 0 rgba(0,0,0,0.12);
}

.cta-text{
  font-weight: 900;
  margin-bottom: 14px;
}

.cta-button{
  display: inline-block;
  min-width: 240px;
  padding: 16px 18px;
  border-radius: 14px;
  background: linear-gradient(180deg, var(--red), var(--red-deep));
  color: #fff;
  text-decoration: none;
  font-weight: 1000;
  letter-spacing: 0.08em;
  border: 4px solid var(--ink);
  box-shadow: 0 10px 0 rgba(0,0,0,0.22);
  transform: translateY(0);
  transition: transform var(--fast), box-shadow var(--fast), filter var(--fast);
}

.cta-button:hover{
  filter: brightness(1.03);
  transform: translateY(-2px);
  box-shadow: 0 12px 0 rgba(0,0,0,0.22);
}

.cta-button:active{
  transform: translateY(6px);
  box-shadow: 0 4px 0 rgba(0,0,0,0.22);
}

.cta-note{
  margin-top: 10px;
  font-size: 0.92rem;
  color: var(--ink-soft);
}

/* Date */
.date-info{
  text-align:center;
  margin-top: 18px;
  padding: 14px;
  background: rgba(255,255,255,0.75);
  border: 2px solid rgba(0,0,0,0.25);
  border-radius: var(--radius-sm);
}

/* Responsive */
@media (max-width: 768px){
  body{padding: 10px;}
  .header{padding: 46px 16px 28px;}
  .content{padding: 28px 18px 38px;}
  .app-subtitle{line-height: 1.5;}
  .cta-button{min-width: 200px;}
}