/* ==========================================================
   NEXUS相性診断 - スタイルシート
   ========================================================== */
:root{
  --c-primary:#189a55;
  --c-primary-dark:#0f7a41;
  --c-primary-light:#e2f7ea;
  --c-accent:#0d3d29;
  --c-accent-2:#2fbf7a;
  --c-bg:#f6faf7;
  --c-card:#ffffff;
  --c-text:#1f2a24;
  --c-text-sub:#5f6f68;
  --c-border:#dcede2;
  --radius-lg:24px;
  --radius-md:16px;
  --radius-sm:10px;
  --shadow-card:0 12px 40px rgba(13,61,41,0.10);
  --shadow-btn:0 8px 20px rgba(24,154,85,0.35);
  font-size:16px;
}

*{box-sizing:border-box;}
html{scroll-behavior:smooth;}
body{
  margin:0;
  font-family:'Noto Sans JP', 'Hiragino Kaku Gothic ProN', sans-serif;
  background:var(--c-bg);
  color:var(--c-text);
  line-height:1.7;
  -webkit-font-smoothing:antialiased;
}
.hidden{display:none !important;}
button{font-family:inherit;cursor:pointer;}
img{max-width:100%;display:block;}

/* ================= HEADER ================= */
.site-header{
  position:sticky;top:0;z-index:100;
  background:rgba(255,255,255,0.92);
  backdrop-filter:blur(8px);
  border-bottom:1px solid var(--c-border);
}
.header-inner{
  max-width:1080px;margin:0 auto;
  display:flex;align-items:center;justify-content:space-between;
  padding:14px 20px;
}
.brand{display:flex;align-items:baseline;gap:8px;}
.brand-mark{
  font-family:'Poppins',sans-serif;font-weight:800;font-size:1.4rem;
  color:var(--c-accent);letter-spacing:1px;
}
.brand-sub{font-size:0.78rem;color:var(--c-text-sub);font-weight:500;}
.header-cta{
  background:var(--c-primary);color:#fff;text-decoration:none;
  padding:9px 18px;border-radius:999px;font-weight:700;font-size:0.85rem;
  display:flex;align-items:center;gap:6px;
  box-shadow:var(--shadow-btn);
  transition:transform .15s ease, box-shadow .15s ease;
}
.header-cta:hover{transform:translateY(-2px);box-shadow:0 12px 26px rgba(24,154,85,0.42);}

/* ================= HERO ================= */
.hero-section{
  position:relative;
  min-height:92vh;
  display:flex;flex-direction:column;align-items:center;justify-content:center;
  text-align:center;
  padding:60px 20px 40px;
  overflow:hidden;
  isolation:isolate;
}
.hero-bg{
  position:absolute;inset:0;z-index:-2;
  background:
    radial-gradient(circle at 15% 20%, rgba(24,154,85,0.16), transparent 45%),
    radial-gradient(circle at 85% 75%, rgba(47,191,122,0.14), transparent 45%),
    linear-gradient(180deg,#ffffff 0%, #f6faf7 60%, #eaf5ee 100%);
}
.hero-overlay{
  position:absolute;inset:0;z-index:-1;
  background-image:
    radial-gradient(rgba(13,61,41,0.05) 1px, transparent 1px);
  background-size:22px 22px;
  mask-image:linear-gradient(180deg, black, transparent 85%);
}
.hero-eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  background:#fff;border:1px solid var(--c-border);
  color:var(--c-primary-dark);font-weight:700;font-size:0.82rem;
  padding:8px 18px;border-radius:999px;margin-bottom:22px;
  box-shadow:0 4px 14px rgba(0,0,0,0.04);
  animation:fadeDown .7s ease both;
}
.hero-title{
  font-size:clamp(2rem, 5.5vw, 3.4rem);
  font-weight:900;line-height:1.3;
  color:var(--c-accent);
  margin:0 0 20px;
  animation:fadeUp .8s ease both .1s;
}
.hero-title .highlight{
  color:var(--c-primary);
  position:relative;
  display:inline-block;
}
.hero-title .highlight::after{
  content:"";position:absolute;left:0;right:0;bottom:6px;height:0.35em;
  background:var(--c-primary-light);z-index:-1;border-radius:4px;
}
.hero-desc{
  font-size:clamp(0.95rem,2.2vw,1.15rem);color:var(--c-text-sub);
  max-width:640px;margin:0 auto 28px;
  animation:fadeUp .8s ease both .2s;
}
.hero-badges{
  display:flex;flex-wrap:wrap;justify-content:center;gap:12px;margin-bottom:32px;
  animation:fadeUp .8s ease both .3s;
}
.hero-badge{
  background:#fff;border:1px solid var(--c-border);
  padding:8px 16px;border-radius:999px;font-size:0.82rem;font-weight:600;
  color:var(--c-accent);display:flex;align-items:center;gap:6px;
  box-shadow:0 4px 10px rgba(0,0,0,0.03);
}
.hero-badge i{color:var(--c-primary);}
.hero-note{
  margin-top:14px;font-size:0.78rem;color:#8a9993;
  animation:fadeUp .8s ease both .5s;
}
.scroll-cue{
  position:absolute;bottom:20px;left:50%;transform:translateX(-50%);
  color:var(--c-text-sub);font-size:1.2rem;
  animation:bounce 1.8s infinite;
}

@keyframes fadeDown{from{opacity:0;transform:translateY(-16px);}to{opacity:1;transform:translateY(0);}}
@keyframes fadeUp{from{opacity:0;transform:translateY(18px);}to{opacity:1;transform:translateY(0);}}
@keyframes bounce{0%,100%{transform:translate(-50%,0);}50%{transform:translate(-50%,8px);}}

/* ================= CTA BUTTONS ================= */
.cta-btn{
  border:none;border-radius:999px;font-weight:700;
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  transition:transform .15s ease, box-shadow .15s ease, background .15s ease;
  white-space:normal;
  text-align:center;
  line-height:1.4;
}
.cta-btn--primary{
  background:linear-gradient(135deg,var(--c-primary),var(--c-primary-dark));
  color:#fff;box-shadow:var(--shadow-btn);
  padding:15px 30px;font-size:1rem;
}
.cta-btn--primary:hover{transform:translateY(-3px) scale(1.02);box-shadow:0 14px 30px rgba(24,154,85,0.45);}
.cta-btn--lg{padding:16px 24px;font-size:1.02rem;width:100%;max-width:420px;}
.cta-btn--ghost{
  background:transparent;color:var(--c-text-sub);
  padding:12px 20px;font-size:0.9rem;border:1px solid var(--c-border);
  width:100%;margin-top:10px;
}
.cta-btn--ghost:hover{background:#eef8f1;color:var(--c-text);}

#start-btn{margin:0 auto;animation:fadeUp .8s ease both .4s, pulseGlow 2.6s ease-in-out infinite 1.2s;}
@keyframes pulseGlow{
  0%,100%{box-shadow:var(--shadow-btn);}
  50%{box-shadow:0 8px 34px rgba(24,154,85,0.6);}
}

/* ================= DIAGNOSIS SECTION ================= */
.diagnosis-section{
  padding:50px 16px 90px;
  display:flex;justify-content:center;
}
.diagnosis-card{
  background:var(--c-card);
  border-radius:var(--radius-lg);
  box-shadow:var(--shadow-card);
  width:100%;max-width:680px;
  padding:40px 32px;
  position:relative;
  overflow:hidden;
}

/* progress */
.progress-wrap{margin-bottom:28px;}
.progress-track{
  height:8px;background:#e6f3ea;border-radius:999px;overflow:hidden;
}
.progress-bar{
  height:100%;width:0%;
  background:linear-gradient(90deg,var(--c-primary),var(--c-accent-2));
  border-radius:999px;
  transition:width .45s ease;
}
.progress-label{
  margin:8px 0 0;font-size:0.78rem;color:var(--c-text-sub);font-weight:600;text-align:right;
}

/* step panels */
.step-panel{display:none;animation:stepIn .45s ease both;}
.step-panel.active{display:block;}
@keyframes stepIn{from{opacity:0;transform:translateX(16px);}to{opacity:1;transform:translateX(0);}}

/* intro */
.intro-icon{
  width:70px;height:70px;border-radius:50%;
  background:var(--c-primary-light);color:var(--c-primary);
  display:flex;align-items:center;justify-content:center;font-size:1.7rem;
  margin:0 auto 20px;
}
.step-title{
  font-size:1.5rem;font-weight:900;color:var(--c-accent);text-align:center;margin:0 0 14px;
}
.step-lead{
  text-align:center;color:var(--c-text-sub);font-size:0.95rem;margin:0 0 24px;
}
.intro-list{list-style:none;padding:0;margin:0 0 30px;display:flex;flex-direction:column;gap:10px;}
.intro-list li{
  display:flex;align-items:center;gap:10px;font-weight:600;font-size:0.92rem;
  background:#f2f9f4;padding:12px 16px;border-radius:var(--radius-sm);
}
.intro-list i{color:var(--c-accent-2);}
.intro-start-btn{display:flex;margin:0 auto;}

/* questions */
.q-kicker{
  color:var(--c-primary);font-weight:800;font-size:0.8rem;letter-spacing:1px;
  text-transform:uppercase;margin:0 0 8px;text-align:center;
}
.q-title{
  font-size:1.25rem;font-weight:800;color:var(--c-accent);text-align:center;
  margin:0 0 20px;line-height:1.55;
}
.q-counter{text-align:center;font-size:0.85rem;color:var(--c-text-sub);margin:-8px 0 16px;font-weight:600;}
.q-counter span{color:var(--c-primary);font-weight:800;}
.q-hint{text-align:center;font-size:0.78rem;color:#a0a0a0;margin-top:8px;}

/* option grid (checkbox style) */
.option-grid{
  display:grid;grid-template-columns:repeat(2,1fr);gap:12px;margin-bottom:8px;
}
.option-card{
  background:#f6faf7;border:2px solid var(--c-border);border-radius:var(--radius-md);
  padding:16px 12px;display:flex;flex-direction:column;align-items:center;gap:8px;
  font-weight:700;font-size:0.88rem;color:var(--c-text);
  transition:all .15s ease;
  text-align:center;
}
.option-card i{font-size:1.3rem;color:var(--c-text-sub);transition:color .15s ease;}
.option-card:hover{border-color:#9adcb6;transform:translateY(-2px);}
.option-card.selected{
  background:linear-gradient(135deg,#eaf8ef,#fff);
  border-color:var(--c-primary);color:var(--c-primary-dark);
  box-shadow:0 6px 16px rgba(24,154,85,0.18);
}
.option-card.selected i{color:var(--c-primary);}

/* option list (radio style) */
.option-list{display:flex;flex-direction:column;gap:10px;margin-bottom:8px;}
.option-row{
  display:flex;align-items:center;gap:14px;
  background:#f6faf7;border:2px solid var(--c-border);border-radius:var(--radius-md);
  padding:15px 18px;font-weight:700;font-size:0.95rem;color:var(--c-text);
  transition:all .15s ease;text-align:left;
}
.option-row:hover{border-color:#9adcb6;}
.option-row.selected{
  background:linear-gradient(135deg,#eaf8ef,#fff);
  border-color:var(--c-primary);color:var(--c-primary-dark);
  box-shadow:0 6px 16px rgba(24,154,85,0.18);
}
.radio-dot{
  width:20px;height:20px;border-radius:50%;border:2px solid #c9dccf;
  flex-shrink:0;position:relative;transition:border-color .15s ease;
}
.option-row.selected .radio-dot{border-color:var(--c-primary);}
.option-row.selected .radio-dot::after{
  content:"";position:absolute;inset:3px;border-radius:50%;background:var(--c-primary);
}
.option-list--inline{flex-direction:row;flex-wrap:wrap;}
.option-row--sm{padding:10px 16px;font-size:0.85rem;flex:1 1 auto;justify-content:center;}

.other-input-wrap{margin:-4px 0 16px;}
.other-input, .free-textarea{
  width:100%;border:2px solid var(--c-border);border-radius:var(--radius-sm);
  padding:12px 14px;font-family:inherit;font-size:0.92rem;color:var(--c-text);
  resize:vertical;transition:border-color .15s ease;
}
.other-input:focus, .free-textarea:focus{outline:none;border-color:var(--c-primary);}

/* nav row */
.nav-row{display:flex;gap:12px;margin-top:26px;}
.nav-btn{
  flex:1;border-radius:999px;padding:15px 20px;font-weight:700;font-size:0.95rem;
  border:none;display:flex;align-items:center;justify-content:center;gap:8px;
  transition:all .15s ease;
}
.nav-btn--back{
  background:#eef4f0;color:var(--c-text-sub);flex:0 0 auto;padding:15px 22px;
}
.nav-btn--back:hover{background:#e0ece4;}
.nav-btn--next{
  background:linear-gradient(135deg,var(--c-primary),var(--c-primary-dark));
  color:#fff;box-shadow:var(--shadow-btn);
}
.nav-btn--next:hover:not(:disabled){transform:translateY(-2px);}
.nav-btn--next:disabled{
  background:#dfe8e2;color:#a3b0a8;box-shadow:none;cursor:not-allowed;
}

/* loading */
.loading-wrap{
  display:flex;flex-direction:column;align-items:center;justify-content:center;
  padding:60px 0;
}
.loading-spinner{
  width:56px;height:56px;border-radius:50%;
  border:5px solid #e6f3ea;border-top-color:var(--c-primary);
  animation:spin 0.9s linear infinite;margin-bottom:22px;
}
@keyframes spin{to{transform:rotate(360deg);}}
.loading-text{font-weight:700;color:var(--c-accent);}

/* ================= RESULT ================= */
.result-header{text-align:center;margin-bottom:30px;}
.result-kicker{
  color:var(--c-primary);font-weight:800;font-size:0.82rem;letter-spacing:2px;
  text-transform:uppercase;margin:0 0 14px;
}
.gauge-wrap{position:relative;width:200px;height:200px;margin:0 auto 18px;}
.gauge-svg{width:100%;height:100%;transform:rotate(-90deg);}
.gauge-track{fill:none;stroke:#e6f3ea;stroke-width:14;}
.gauge-fill{
  fill:none;stroke:url(#none);stroke:var(--c-primary);stroke-width:14;stroke-linecap:round;
  stroke-dasharray:552.9; stroke-dashoffset:552.9;
  transition:stroke-dashoffset 1.4s cubic-bezier(.2,.9,.25,1);
}
.gauge-center{
  position:absolute;inset:0;display:flex;flex-direction:column;align-items:center;justify-content:center;
}
.gauge-score{font-family:'Poppins',sans-serif;font-size:2.8rem;font-weight:800;color:var(--c-accent);}
.gauge-percent{font-size:1.3rem;font-weight:700;color:var(--c-accent);margin-left:2px;}
.gauge-caption{font-size:0.75rem;color:var(--c-text-sub);font-weight:600;margin-top:2px;}
.result-type-title{
  font-size:1.5rem;font-weight:900;color:var(--c-accent);margin:6px 0 10px;
}
.result-type-desc{color:var(--c-text-sub);font-size:0.92rem;max-width:480px;margin:0 auto;}

.result-sub-title{
  font-size:1rem;font-weight:800;color:var(--c-accent);
  display:flex;align-items:center;gap:8px;margin:0 0 14px;
}
.result-sub-title i{color:var(--c-primary);}
.result-chart-wrap{
  background:#f6faf7;border-radius:var(--radius-md);padding:20px;margin-bottom:26px;
}
.chart-container{height:280px;}

.result-points-wrap{margin-bottom:30px;}
.result-points-list{list-style:none;padding:0;margin:0;display:flex;flex-direction:column;gap:10px;}
.result-points-list li{
  background:#eefaf3;border:1px solid #cdeedb;border-radius:var(--radius-sm);
  padding:13px 16px;display:flex;gap:10px;align-items:flex-start;font-size:0.88rem;font-weight:600;
}
.result-points-list li i{color:var(--c-accent-2);margin-top:2px;}

.result-cta-box{
  background:linear-gradient(135deg,#f0faf3,#fff);
  border:2px dashed #a9e2c1;border-radius:var(--radius-md);
  padding:26px 20px;text-align:center;
}
.result-cta-lead{font-weight:800;color:var(--c-primary-dark);margin:0 0 16px;font-size:0.95rem;}

/* contact form */
.mini-result-card{
  display:flex;align-items:center;justify-content:center;gap:12px;
  background:#eefaf3;border-radius:999px;padding:10px 22px;margin:0 auto 24px;width:fit-content;
  font-weight:800;
}
.mini-result-score{color:var(--c-primary);font-size:1.3rem;font-family:'Poppins',sans-serif;}
.mini-result-type{color:var(--c-accent);font-size:0.85rem;border-left:2px solid #b9e6cb;padding-left:12px;}

.contact-form{display:flex;flex-direction:column;gap:16px;margin-top:10px;}
.form-field{display:flex;flex-direction:column;gap:6px;}
.form-label{font-weight:700;font-size:0.88rem;color:var(--c-accent);}
.required{color:var(--c-primary);font-size:0.7rem;background:var(--c-primary-light);padding:2px 6px;border-radius:4px;margin-left:4px;}
.form-field input[type=text], .form-field input[type=tel], .form-field input[type=email]{
  border:2px solid var(--c-border);border-radius:var(--radius-sm);padding:13px 14px;
  font-family:inherit;font-size:0.95rem;transition:border-color .15s ease;
}
.form-field input:focus{outline:none;border-color:var(--c-primary);}
.form-checkbox{
  display:flex;align-items:flex-start;gap:10px;font-size:0.8rem;color:var(--c-text-sub);
  background:#f6faf7;padding:14px;border-radius:var(--radius-sm);
}
.form-checkbox input{margin-top:3px;}

/* thanks */
.thanks-icon{font-size:3.2rem;color:var(--c-accent-2);text-align:center;margin-bottom:16px;}
.thanks-summary{
  background:#f6faf7;border-radius:var(--radius-md);padding:18px 22px;margin:20px 0;
  display:flex;flex-direction:column;gap:10px;
}
.thanks-summary-row{display:flex;justify-content:space-between;font-weight:700;font-size:0.92rem;color:var(--c-accent);}
.thanks-summary-row span{color:var(--c-text-sub);font-weight:600;}
.share-box{text-align:center;margin-top:24px;}
.share-box p{font-size:0.85rem;color:var(--c-text-sub);margin-bottom:10px;}

/* footer */
.site-footer{
  text-align:center;padding:26px;color:#9db3a5;font-size:0.78rem;
}

/* ================= RESPONSIVE ================= */
@media (max-width:600px){
  .diagnosis-card{padding:28px 18px;border-radius:18px;}
  .option-grid{grid-template-columns:repeat(2,1fr);gap:10px;}
  .option-card{padding:14px 8px;font-size:0.8rem;}
  .option-card i{font-size:1.1rem;}
  .q-title{font-size:1.08rem;}
  .hero-section{min-height:auto;padding:70px 18px 50px;}
  .nav-row{flex-wrap:wrap;}
  .nav-btn--back{order:2;flex:1;}
  .nav-btn--next{order:1;flex:1 1 100%;}
  .cta-btn--lg{padding:16px 18px;font-size:0.92rem;gap:6px;}
  .cta-btn--primary{padding:14px 18px;font-size:0.92rem;}
}
@media (min-width:601px){
  .sp-only{display:none;}
}