:root {
    --bg: #2C2C2C;
    --bg2: #383838;
    --bg3: #444444;
    --yellow: #FAEA26;
    --yellow-deep: #D4B800;
    --white: #FFFFFF;
    --gray: #AAAAAA;
    --text: #F0F0F0;
    --glow: 0 0 18px rgba(250,234,38,.55), 0 0 40px rgba(250,234,38,.25);
    --glow-hover: 0 0 24px rgba(250,234,38,.8), 0 0 60px rgba(250,234,38,.35);
  }
  * { margin:0; padding:0; box-sizing:border-box; }
  html { scroll-behavior: smooth; }
  body {
    font-family: 'Hiragino Kaku Gothic ProN', 'Noto Sans JP', sans-serif;
    background: var(--bg);
    color: var(--text);
    line-height: 1.7;
  }

  /* NAV */
  nav {
    position: fixed; top:0; left:0; right:0; z-index:100;
    background: rgba(44,44,44,0.96);
    border-bottom: 1px solid var(--yellow);
    display: flex; align-items:center; justify-content:space-between;
    padding: 0 5%;
    height: 60px;
  }
  .nav-logo {
    font-size: 1.4rem;
    font-weight: 900;
    color: #ffffff;
    text-decoration: none;
    letter-spacing: .02em;
  }
  .nav-logo span { color: #FAEA26; }
  .nav-links { display:flex; gap:2rem; list-style:none; }
  .nav-links a { color: var(--gray); text-decoration:none; font-size:.9rem; transition: color .2s; }
  .nav-links a:hover { color: var(--yellow-deep); }

  /* GLOW BUTTON */
  .btn-glow {
    background: var(--yellow); color:#1a1a1a;
    padding:.45rem 1.2rem; border-radius:4px;
    font-weight:700; font-size:.85rem; text-decoration:none;
    box-shadow: var(--glow);
    transition: box-shadow .3s, opacity .2s, transform .2s;
    display:inline-block;
    animation: pulse-glow 2.5s ease-in-out infinite;
  }
  .btn-glow:hover {
    box-shadow: var(--glow-hover);
    opacity:.95; transform:translateY(-1px);
    animation: none;
  }
  @keyframes pulse-glow {
    0%, 100% { box-shadow: var(--glow); }
    50% { box-shadow: var(--glow-hover); }
  }

  /* HERO */
  .hero {
    min-height: 100vh;
    display: flex; flex-direction:column; justify-content:center; align-items:center;
    padding: 100px 5% 60px;
    position: relative; overflow:hidden;
    background-image: url('/assets/img/hero-bg.webp');
    background-size: cover;
    background-position: center;
  }
  .hero::before {
    content:'';
    position:absolute; top:0; right:0;
    width:55%; height:100%;
    background: linear-gradient(135deg, transparent 40%, rgba(250,234,38,.04) 100%);
    pointer-events:none;
  }
  .hero-eyebrow {
    font-size:.8rem; letter-spacing:.2em; text-transform:uppercase;
    color: var(--yellow-deep); margin-bottom:1.2rem;
    border-left: 3px solid var(--yellow); padding-left:.8rem;
  }
  .hero-title {
    font-size: clamp(2.2rem, 5vw, 4rem);
    font-weight:800; line-height:1.2;
    color: var(--white); margin-bottom:1.5rem;
    letter-spacing:-.02em;
  }
  .hero-title em {
    font-style:normal;
    background: linear-gradient(90deg, var(--yellow) 0%, var(--yellow-deep) 100%);
    -webkit-background-clip: text; -webkit-text-fill-color: transparent;
    background-clip: text;
  }
  .hero-sub {
    font-size:1.1rem; color: var(--gray);
    max-width: 520px; margin-bottom:2.5rem; line-height:1.8;
  }
  .hero-btns { display:flex; gap:1rem; flex-wrap:wrap; margin-bottom:3rem; }

  .btn-primary {
    background: var(--yellow); color:#1a1a1a;
    padding:.8rem 2rem; border-radius:4px;
    font-weight:700; font-size:1rem; text-decoration:none;
    box-shadow: var(--glow);
    animation: pulse-glow 2.5s ease-in-out infinite;
    transition: box-shadow .3s, transform .2s;
    display:inline-block;
  }
  .btn-primary:hover {
    box-shadow: var(--glow-hover);
    transform:translateY(-2px);
    animation: none;
  }
  .btn-secondary {
    border: 1.5px solid var(--yellow); color: var(--yellow-deep);
    padding:.8rem 2rem; border-radius:4px;
    font-weight:600; font-size:1rem; text-decoration:none;
    transition: background .2s;
    display:inline-block;
  }
  .btn-secondary:hover { background: rgba(250,234,38,.08); }

  .hero-screen {
    width:100%; max-width:900px;
    border: 1px solid rgba(250,234,38,.2);
    border-radius:8px; overflow:hidden;
    box-shadow: 0 20px 60px rgba(0,0,0,.5);
    margin-top:1rem;
  }
  .hero-screen img { width:100%; display:block; }
  .hero-screen-sub {
    display:grid; grid-template-columns:1fr;
    gap:2px; background: rgba(250,234,38,.1);
  }
  .hero-screen-sub img { width:100%; display:block; }

  /* SECTIONS */
  .section { padding: 80px 5%; }
  .section-label {
    font-size:.75rem; letter-spacing:.2em; text-transform:uppercase;
    color: var(--yellow-deep); margin-bottom:.8rem;
  }
  .section-title {
    font-size: clamp(1.6rem, 3vw, 2.4rem);
    font-weight:800; color:var(--white);
    margin-bottom:1rem; line-height:1.3;
  }
  .section-desc { color:var(--gray); max-width:600px; margin-bottom:3rem; }
  .divider {
    height:1px; background: linear-gradient(90deg, var(--yellow) 0%, transparent 70%);
    margin-bottom:0;
  }

  /* PROBLEM CARDS */
  .problem-grid {
    display:grid; grid-template-columns: repeat(auto-fit, minmax(260px,1fr));
    gap:1.5rem;
  }
  .problem-card {
    background:var(--bg2);
    border: 1px solid #555;
    border-left: 3px solid var(--yellow);
    border-radius:6px; padding:1.5rem;
  }
  .problem-card .icon { font-size:1.8rem; margin-bottom:.8rem; }
  .problem-card h3 { font-size:1rem; font-weight:700; color:var(--white); margin-bottom:.5rem; }
  .problem-card p { font-size:.9rem; color:var(--gray); line-height:1.7; }

  /* STRENGTHS */
  .strength-grid {
    display:grid; grid-template-columns: repeat(auto-fit, minmax(220px,1fr));
    gap:1.5rem;
  }
  .strength-card {
    background:var(--bg2); border:1px solid #555;
    border-radius:6px; padding:1.8rem 1.5rem; text-align:center;
  }
  .strength-card .num {
    font-size:2.5rem; font-weight:800;
    color: var(--yellow-deep); line-height:1;
    margin-bottom:.5rem;
  }
  .strength-card h3 { font-size:1rem; font-weight:700; color:var(--white); margin-bottom:.6rem; }
  .strength-card p { font-size:.85rem; color:var(--gray); line-height:1.7; }

  /* WORKS */
  .works-grid { display:grid; gap:2rem; }
  .work-card {
    background:var(--bg2); border:1px solid #555;
    border-radius:8px; overflow:hidden;
    display:grid; grid-template-columns:1fr 1fr; gap:0;
    transition: border-color .3s;
  }
  .work-card:hover { border-color: rgba(250,234,38,.4); }
  .work-card.featured {
    border-color: rgba(250,234,38,.3);
    grid-template-columns:1fr;
  }
  .work-card.featured .work-screens {
    display:grid; grid-template-columns:1fr 1fr; gap:2px;
    background: rgba(0,0,0,.3);
  }
  .work-card.featured .work-screens img { width:100%; display:block; height:220px; object-fit:cover; object-position:top; }
  .work-img img {
    width:100%; height:100%; object-fit:cover; object-position:top;
    display:block; min-height:240px;
  }
  .work-info { padding:2rem; display:flex; flex-direction:column; justify-content:center; }
  .work-tag {
    display:inline-block;
    background: rgba(250,234,38,.12); color: var(--yellow-deep);
    font-size:.7rem; letter-spacing:.1em; padding:.3rem .8rem;
    border-radius:3px; margin-bottom:1rem; width:fit-content;
  }
  .work-info h3 { font-size:1.3rem; font-weight:800; color:var(--white); margin-bottom:.6rem; }
  .work-info .tagline { font-size:.95rem; color: var(--yellow-deep); font-weight:600; margin-bottom:.8rem; }
  .work-info p { font-size:.9rem; color:var(--gray); line-height:1.7; }
  .work-features { display:flex; flex-wrap:wrap; gap:.5rem; margin-top:1rem; }
  .work-feature {
    background:var(--bg3); font-size:.75rem;
    color:var(--gray); padding:.3rem .7rem; border-radius:3px;
  }
  .envelope-placeholder {
    width:100%; height:240px;
    background: var(--bg3);
    display:flex; align-items:center; justify-content:center;
    flex-direction:column; gap:.5rem;
  }
  .envelope-placeholder .big-icon { font-size:3rem; opacity:.4; }
  .envelope-placeholder p { font-size:.85rem; color:var(--gray); opacity:.6; }

  /* PRICE */
  .price-grid {
    display:grid; grid-template-columns: repeat(auto-fit, minmax(280px,1fr));
    gap:1.5rem;
  }
  .price-card {
    background:var(--bg2); border:1px solid #555;
    border-radius:8px; padding:2rem;
  }
  .price-card.recommended {
    border-color: var(--yellow);
    box-shadow: var(--glow);
    position:relative;
  }
  .price-badge {
    position:absolute; top:-12px; left:50%; transform:translateX(-50%);
    background:var(--yellow); color:#1a1a1a;
    font-size:.7rem; font-weight:700; padding:.3rem 1rem; border-radius:20px;
    white-space:nowrap; letter-spacing:.05em;
  }
  .price-card h3 { font-size:1.1rem; font-weight:800; color:var(--white); margin-bottom:.4rem; }
  .price-card .price-sub { font-size:.85rem; color:var(--gray); margin-bottom:1.5rem; }
  .price-amount { font-size:2rem; font-weight:800; color:var(--yellow-deep); margin-bottom:1.5rem; line-height:1; }
  .price-amount span { font-size:1rem; color:var(--gray); font-weight:400; }
  .price-list { list-style:none; }
  .price-list li {
    padding:.5rem 0; font-size:.9rem; color:var(--gray);
    border-bottom:1px solid #444;
    display:flex; gap:.6rem; align-items:flex-start;
  }
  .price-list li::before { content:'✓'; color:var(--yellow-deep); flex-shrink:0; }
  .price-note { font-size:.8rem; color:#777; margin-top:1rem; }

  /* ABOUT */
  .about-inner {
    display:grid; grid-template-columns: 240px 1fr;
    gap:3rem; align-items:start;
  }
  .about-photo {
    width:240px; height:240px; border-radius:8px;
    background:var(--bg3);
    border: 1px solid rgba(250,234,38,.2);
    display:flex; align-items:center; justify-content:center;
    overflow:hidden;
  }
  .about-photo-placeholder {
    width:100%; height:100%;
    display:flex; align-items:center; justify-content:center;
    flex-direction:column; gap:.5rem;
  }
  .about-photo-placeholder .big-icon { font-size:4rem; opacity:.3; }
  .about-photo-placeholder p { font-size:.75rem; color:#666; }
  .about-name { font-size:1.6rem; font-weight:800; color:var(--white); margin-bottom:.3rem; }
  .about-title { font-size:.9rem; color:var(--yellow-deep); margin-bottom:1.2rem; }
  .about-bio { font-size:.95rem; color:var(--gray); line-height:1.8; margin-bottom:1.5rem; }
  .license-list { display:flex; flex-wrap:wrap; gap:.5rem; }
  .license-badge {
    background:var(--bg3); border:1px solid #555;
    font-size:.8rem; color:var(--gray);
    padding:.4rem .9rem; border-radius:3px;
  }

  /* CTA SECTION */
  .cta-section {
    background: linear-gradient(135deg, var(--bg2) 0%, #333 100%);
    border-top: 1px solid rgba(250,234,38,.2);
    border-bottom: 1px solid rgba(250,234,38,.2);
    padding:80px 5%; text-align:center;
  }
  .cta-section h2 { font-size:clamp(1.6rem,3vw,2.4rem); font-weight:800; color:var(--white); margin-bottom:1rem; }
  .cta-section p { color:var(--gray); margin-bottom:2.5rem; font-size:1rem; }
  .cta-btns { display:flex; gap:1rem; justify-content:center; flex-wrap:wrap; }

  /* LINE GLOW BUTTON */
  .btn-line {
    background: #06C755; color:#fff;
    padding:.8rem 2rem; border-radius:4px;
    font-weight:700; font-size:1rem; text-decoration:none;
    box-shadow: 0 0 18px rgba(6,199,85,.55), 0 0 40px rgba(6,199,85,.25);
    animation: pulse-glow-line 2.5s ease-in-out infinite;
    transition: box-shadow .3s, transform .2s;
    display:inline-block;
  }
  .btn-line:hover {
    box-shadow: 0 0 28px rgba(6,199,85,.8), 0 0 60px rgba(6,199,85,.4);
    transform:translateY(-2px);
    animation: none;
  }
  @keyframes pulse-glow-line {
    0%, 100% { box-shadow: 0 0 18px rgba(6,199,85,.55), 0 0 40px rgba(6,199,85,.25); }
    50% { box-shadow: 0 0 28px rgba(6,199,85,.8), 0 0 60px rgba(6,199,85,.4); }
  }

  /* FOOTER */
  footer {
    padding:2.5rem 5%;
    border-top:1px solid #444;
    display:flex; justify-content:space-between; align-items:center;
    flex-wrap:wrap; gap:1rem;
  }
  .footer-logo {
    font-size: 1.1rem;
    font-weight: 900;
    color: #ffffff;
  }
  .footer-logo span { color: #FAEA26; }
  footer p { font-size:.8rem; color:#666; }

  /* RESPONSIVE */
  @media(max-width:768px) {
    .nav-links { display:none; }
    .work-card { grid-template-columns:1fr !important; }
    .about-inner { grid-template-columns:1fr; }
    .about-photo { width:100%; max-width:240px; }
  }

  /* SCROLL ANIMATIONS */
  .fade-up {
    opacity:0; transform:translateY(24px);
    transition: opacity .6s ease, transform .6s ease;
  }
  .fade-up.visible { opacity:1; transform:translateY(0); }

  .hero-overlay {
    position:absolute; inset:0;
    background: linear-gradient(160deg,
      rgba(15,25,58,0.78) 0%,
      rgba(10,20,50,0.72) 50%,
      rgba(8,15,40,0.80) 100%);
    z-index:0;
  }
  .hero-inner {
    position:relative; z-index:1;
    display:flex; flex-direction:column; align-items:flex-start;
    max-width:900px; width:100%;
  }
  .hero-logo-wrap {
    width:100%; display:flex; justify-content:center;
    margin-bottom:2.5rem;
  }
  .hero-logo-wrap img {
    height:280px; width:auto;
    filter: drop-shadow(0 0 20px rgba(250,234,38,.5)) drop-shadow(0 0 50px rgba(250,234,38,.2));
    animation: logo-glow 3s ease-in-out infinite;
  }
  @keyframes logo-glow {
    0%,100% { filter: drop-shadow(0 0 20px rgba(250,234,38,.5)) drop-shadow(0 0 50px rgba(250,234,38,.2)); }
    50% { filter: drop-shadow(0 0 35px rgba(250,234,38,.85)) drop-shadow(0 0 80px rgba(250,234,38,.4)); }
  }
  .scroll-indicator {
    position:absolute; bottom:2rem; left:50%; transform:translateX(-50%);
    z-index:1; display:flex; flex-direction:column; align-items:center; gap:.4rem;
  }
  .scroll-indicator span {
    font-size:.65rem; letter-spacing:.2em;
    color:rgba(255,255,255,.35); text-transform:uppercase;
  }
  .scroll-line {
    width:1px; height:40px;
    background:linear-gradient(to bottom, rgba(212,184,0,.5), transparent);
    animation:scroll-drop 1.8s ease-in-out infinite;
  }
  @keyframes scroll-drop {
    0% { transform:scaleY(0); transform-origin:top; opacity:1; }
    50% { transform:scaleY(1); transform-origin:top; opacity:1; }
    100% { transform:scaleY(1); transform-origin:bottom; opacity:0; }
  }