/* ===== Reset & Variables ===== */
*,*::before,*::after{margin:0;padding:0;box-sizing:border-box}
:root{
  --bg:#fafaf9;
  --bg2:#f5f5f4;
  --bg3:#e7e5e4;
  --text:#1c1917;
  --muted:#78716c;
  --primary:#f97316;
  --primary-h:#ea580c;
  --primary-light:#fb923c;
  --accent:#fdba74;
  --border:#e7e5e4;
  --card:#fff;
  --radius:12px;
  --font:'Noto Sans JP',system-ui,-apple-system,sans-serif;
  --mono:'SF Mono','Fira Code','Cascadia Code',monospace;
}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{font-family:var(--font);color:var(--text);background:var(--bg);line-height:1.6;-webkit-font-smoothing:antialiased}
a{color:inherit;text-decoration:none}
ul{list-style:none}
img,video{display:block;max-width:100%}

.container{max-width:1200px;margin:0 auto;padding:0 40px}
.container-narrow{max-width:800px;margin:0 auto;padding:0 40px;text-align:center}

/* ===== Nav ===== */
.nav{
  position:fixed;top:0;left:0;right:0;z-index:100;
  display:flex;align-items:center;justify-content:flex-end;
  padding:18px 40px;
}
.nav-logo{font-weight:700;font-size:20px;letter-spacing:0.02em;color:var(--text)}
.nav-right{display:flex;align-items:center}
.nav-pill{
  display:flex;align-items:center;gap:4px;
  background:rgba(250,250,249,0.85);backdrop-filter:blur(12px);-webkit-backdrop-filter:blur(12px);
  border:1px solid var(--border);border-radius:28px;padding:6px 6px 6px 20px;
}
.nav-link{font-size:14px;color:var(--muted);padding:6px 14px;border-radius:20px;transition:color .15s;font-weight:500}
.nav-link:hover{color:var(--text)}
.btn-download{
  display:inline-flex;align-items:center;gap:6px;
  background:var(--primary);color:#fff;font-size:13px;font-weight:600;
  padding:8px 22px;border-radius:20px;transition:background .15s;cursor:pointer;
}
.btn-download:hover{background:var(--primary-h)}
.nav-mobile-btn{display:none;flex-direction:column;gap:5px;background:none;border:none;cursor:pointer;padding:4px}
.nav-mobile-btn span{display:block;width:20px;height:2px;background:var(--text);border-radius:2px;transition:transform .2s}
.nav-mobile-btn.open span:first-child{transform:rotate(45deg) translate(2.5px,2.5px)}
.nav-mobile-btn.open span:last-child{transform:rotate(-45deg) translate(2.5px,-2.5px)}
.mobile-menu{
  display:none;position:fixed;top:60px;left:16px;right:16px;z-index:99;
  background:rgba(255,255,255,0.96);backdrop-filter:blur(16px);
  border:1px solid var(--border);border-radius:var(--radius);padding:16px 20px;flex-direction:column;gap:10px;
}
.mobile-menu.open{display:flex}
.mobile-menu a{font-size:15px;font-weight:500;color:var(--muted);padding:6px 0}

/* ===== Buttons ===== */
.btn-primary{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  background:var(--primary);color:#fff;font-family:var(--font);font-weight:600;font-size:14px;
  padding:12px 28px;border-radius:10px;border:none;cursor:pointer;transition:background .15s,transform .1s;
}
.btn-primary:hover{background:var(--primary-h)}
.btn-primary:active{transform:scale(0.98)}
.btn-outline{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;width:100%;
  background:var(--bg2);color:var(--text);font-family:var(--font);font-weight:600;font-size:13px;
  padding:12px 24px;border-radius:10px;border:1px solid var(--border);cursor:pointer;transition:background .15s;
}
.btn-outline:hover{background:#ddd5cf}

/* ===== Hero ===== */
.hero{position:relative;min-height:100vh;display:flex;flex-direction:column;justify-content:center;overflow:hidden}
.hero-bg{position:absolute;inset:0;z-index:0;background:var(--bg)}
.hero-bg::before{
  content:'';position:absolute;inset:0;
  background:radial-gradient(ellipse 100% 80% at 50% 30%,rgba(253,186,116,0.2) 0%,transparent 60%),
    radial-gradient(ellipse 60% 50% at 70% 40%,rgba(249,115,22,0.06) 0%,transparent 60%);
}
.hero-bg::after{
  content:'';position:absolute;bottom:0;left:0;right:0;height:40%;
  background:linear-gradient(to bottom,transparent,var(--bg));
}
.hero-bg-gradient{
  position:absolute;inset:0;
  background:radial-gradient(circle at 25% 50%, rgba(253,186,116,0.1) 0%, transparent 50%),
    radial-gradient(circle at 75% 35%, rgba(249,115,22,0.06) 0%, transparent 50%);
}
.hero-inner{position:relative;z-index:1;max-width:1200px;margin:0 auto;padding:0 40px;padding-top:140px}
.hero-title{
  font-size:clamp(42px,6vw,76px);font-weight:700;letter-spacing:-0.03em;
  line-height:1.1;color:var(--text);margin-bottom:24px;
}
.hero-sub{font-size:clamp(16px,1.4vw,18px);color:var(--muted);line-height:1.8;max-width:500px}
@keyframes pulse-dot{0%,100%{opacity:1;transform:scale(1)}50%{opacity:0.6;transform:scale(1.2)}}
.hero-actions{display:flex;align-items:center;gap:20px;margin-top:36px;flex-wrap:wrap}
.btn-hero{font-size:15px;padding:14px 32px;border-radius:12px;box-shadow:0 4px 16px rgba(249,115,22,0.25)}
.btn-hero:hover{box-shadow:0 6px 24px rgba(249,115,22,0.35);transform:translateY(-1px)}
.hero-platform{display:flex;align-items:center;gap:6px;font-size:13px;color:var(--muted);font-weight:500}
.apple-icon{color:var(--muted)}
.hero-scroll-indicator{position:absolute;bottom:32px;left:50%;transform:translateX(-50%);z-index:1}
.scroll-bar{width:40px;height:4px;background:var(--text);border-radius:2px;opacity:0.15;animation:scrollPulse 2s ease infinite}
@keyframes scrollPulse{0%,100%{opacity:0.15}50%{opacity:0.3}}

/* ===== Sections ===== */
.section{padding:100px 0}
.section-title-lg{font-size:clamp(28px,3.8vw,44px);font-weight:700;letter-spacing:-0.025em;line-height:1.15;margin-bottom:16px}
.section-title-center{font-size:clamp(28px,3.8vw,44px);font-weight:700;letter-spacing:-0.025em;line-height:1.2;text-align:center;margin-bottom:16px}
.section-desc{font-size:15px;color:var(--muted);line-height:1.7;margin-bottom:20px;max-width:560px}
.section-desc-center{font-size:15px;color:var(--muted);line-height:1.7;text-align:center;margin-bottom:36px;max-width:560px;margin-left:auto;margin-right:auto}
.tag-dark{
  display:inline-block;font-size:13px;font-weight:500;color:rgba(255,255,255,0.5);
  margin-bottom:12px;
}

/* ===== Speak Section ===== */
.section-speak{padding-top:40px}
.speak-header{margin-bottom:48px}
.speak-title{font-size:clamp(28px,3.5vw,42px);font-weight:700;letter-spacing:-0.025em;margin-bottom:14px}
.speak-desc{font-size:15px;color:var(--muted);line-height:1.7;max-width:520px;margin:0 auto 24px}

/* Demo Stage */
.demo-stage{
  max-width:700px;margin:0 auto;position:relative;min-height:340px;
}

/* Editor mockup */
.demo-editor{
  background:var(--card);border:1px solid var(--border);border-radius:12px;
  box-shadow:0 8px 40px rgba(0,0,0,0.06);overflow:hidden;
}
.demo-editor-topbar{
  display:flex;gap:6px;padding:12px 16px;border-bottom:1px solid var(--border);background:var(--bg2);
}
.demo-editor-dot{width:10px;height:10px;border-radius:50%;background:var(--bg3)}
.demo-editor-body{
  padding:32px 40px;min-height:180px;font-size:15px;line-height:1.9;color:var(--text);
}
.demo-cursor{
  color:var(--primary);font-weight:300;animation:blink 1s step-end infinite;
}
.demo-typed-text{opacity:0}

/* Shortcut hint */
.demo-shortcut-hint{
  display:flex;align-items:center;justify-content:center;gap:6px;
  margin-top:20px;opacity:0;
  animation:demoHint 12s ease infinite;
}

/* Koeji overlay pills */
.demo-overlay{
  position:absolute;left:50%;transform:translateX(-50%);bottom:100px;
  display:inline-flex;align-items:center;gap:12px;
  background:rgba(40,40,40,0.85);backdrop-filter:blur(12px);-webkit-backdrop-filter:blur(12px);
  padding:10px 24px;border-radius:28px;
  box-shadow:0 8px 32px rgba(0,0,0,0.2);
  opacity:0;z-index:10;
}
.demo-overlay-recording{animation:demoRecording 12s ease infinite}
.demo-overlay-transcribing{animation:demoTranscribing 12s ease infinite}
.koeji-logo-char{
  font-size:18px;font-weight:700;color:#e8a040;
}
.koeji-waves{display:flex;align-items:center;gap:2px;height:20px}
.koeji-waves span{width:3px;background:rgba(255,255,255,0.9);border-radius:1px;animation:wave 1.2s ease-in-out infinite}
.koeji-waves span:nth-child(1){height:8px;animation-delay:0s}
.koeji-waves span:nth-child(2){height:14px;animation-delay:.1s}
.koeji-waves span:nth-child(3){height:10px;animation-delay:.2s}
.koeji-waves span:nth-child(4){height:18px;animation-delay:.15s}
.koeji-waves span:nth-child(5){height:12px;animation-delay:.25s}
.koeji-waves span:nth-child(6){height:16px;animation-delay:.05s}
.koeji-waves span:nth-child(7){height:9px;animation-delay:.3s}
.koeji-wave-dot{width:5px;height:5px;border-radius:50%;background:rgba(255,255,255,0.7);margin:0 1px}
@keyframes wave{0%,100%{transform:scaleY(1)}50%{transform:scaleY(0.4)}}
.koeji-status{font-size:14px;color:#fff;font-weight:500}
.koeji-timer{font-size:14px;color:rgba(255,255,255,0.85);font-family:var(--mono);font-weight:500}

/* Use case overlay */
.uc-mockup{position:relative}
.uc-overlay{
  position:absolute;bottom:60px;left:50%;transform:translateX(-50%) scale(0.95);
  display:inline-flex;align-items:center;gap:10px;
  background:rgba(40,40,40,0.9);backdrop-filter:blur(12px);-webkit-backdrop-filter:blur(12px);
  padding:8px 18px;border-radius:24px;
  box-shadow:0 6px 24px rgba(0,0,0,0.3);
  opacity:0;transition:opacity .25s ease,transform .25s ease;
  z-index:20;white-space:nowrap;
}
.uc-overlay.visible{opacity:1;transform:translateX(-50%) scale(1)}
.uc-overlay .koeji-logo-char{font-size:14px}
.uc-overlay .koeji-waves{height:16px}
.uc-overlay .koeji-waves span{width:2px}
.uc-overlay .koeji-status{font-size:12px}
.uc-overlay .koeji-timer{font-size:12px}
.uc-sent{animation:ucFadeIn .3s ease both}
@keyframes ucFadeIn{from{opacity:0;transform:translateY(6px)}to{opacity:1;transform:translateY(0)}}
.uc-input-text{font-size:12px}

/* Demo animation timeline (12s loop):
   0s-2.5s:  Shortcut hint shows
   2.5s-3s:  Hint fades, recording overlay appears
   3s-6.5s:  Recording (声 + waves)
   6.5s-7s:  Recording fades, transcribing appears
   7s-8.5s:  Transcribing (字 + 文字起こし中...)
   8.5s-9s:  Transcribing fades
   9s:       Text appears
   9s-11s:   Text visible
   11s-12s:  Reset
*/
@keyframes demoHint{
  0%,3%{opacity:0;transform:translateY(4px)}
  5%,18%{opacity:1;transform:translateY(0)}
  21%,100%{opacity:0;transform:translateY(-4px)}
}
@keyframes demoRecording{
  0%,22%{opacity:0;transform:translateX(-50%) scale(0.95)}
  25%,52%{opacity:1;transform:translateX(-50%) scale(1)}
  55%,100%{opacity:0;transform:translateX(-50%) scale(0.95)}
}
@keyframes demoTranscribing{
  0%,56%{opacity:0;transform:translateX(-50%) scale(0.95)}
  58%,69%{opacity:1;transform:translateX(-50%) scale(1)}
  72%,100%{opacity:0;transform:translateX(-50%) scale(0.95)}
}

/* ===== Speed Section ===== */
.section-speed{padding-bottom:80px}
.speed-heading{font-size:clamp(28px,3.5vw,42px);font-weight:700;letter-spacing:-0.025em;line-height:1.15;margin-bottom:16px}
.speed-desc{font-size:15px;color:var(--muted);line-height:1.7;margin-bottom:24px}
.speed-comparison{
  display:grid;grid-template-columns:1fr auto 1fr;gap:0;
  max-width:1200px;margin:48px auto 0;
  border:1px solid var(--border);border-radius:var(--radius);overflow:hidden;
  background:var(--card);
}
.speed-side{padding:32px 40px;min-height:300px;display:flex;flex-direction:column}
.speed-side-header{display:flex;align-items:center;gap:8px;margin-bottom:24px}
.speed-side-label{font-size:13px;color:var(--muted);font-weight:600;font-family:var(--mono)}
.speed-typing-area{flex:1;display:flex;flex-direction:column;align-items:center;padding-top:20px;position:relative}
.speed-typing-text{font-size:clamp(16px,2vw,20px);font-weight:400;letter-spacing:-0.01em;line-height:1.7;min-height:120px;width:100%;text-align:left}
.speed-typing-slow{color:var(--muted)}
.typing-cursor-kb{display:inline-block;width:2px;height:1em;background:var(--primary);vertical-align:text-bottom;animation:blink 1s step-end infinite}
@keyframes blink{0%,100%{opacity:1}50%{opacity:0}}
.speed-divider{width:1px;background:var(--border)}
.speed-overlay{
  position:absolute;bottom:12px;left:50%;transform:translateX(-50%) scale(0.95);
  display:inline-flex;align-items:center;gap:12px;
  background:rgba(40,40,40,0.85);backdrop-filter:blur(12px);-webkit-backdrop-filter:blur(12px);
  padding:10px 24px;border-radius:28px;
  box-shadow:0 8px 32px rgba(0,0,0,0.2);
  opacity:0;transition:opacity .3s ease,transform .3s ease;
  white-space:nowrap;
}
.speed-overlay.visible{opacity:1;transform:translateX(-50%) scale(1)}
.speed-done-badge{
  position:absolute;bottom:16px;left:50%;transform:translateX(-50%) translateY(4px);
  display:inline-flex;align-items:center;gap:6px;
  color:var(--primary);font-size:14px;font-weight:700;
  opacity:0;transition:opacity .3s ease,transform .3s ease;
  white-space:nowrap;
}
.speed-done-badge.visible{opacity:1;transform:translateX(-50%) translateY(0)}

/* ===== Three Features ===== */
.section-three-features{padding:60px 0 100px;border-top:1px solid var(--border)}
.three-features-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:40px;text-align:center}
.tf-card{
  padding:32px 20px;
  opacity:0;transform:translateY(16px);transition:opacity .5s ease,transform .5s ease;
}
.tf-card.in-view{opacity:1;transform:translateY(0)}
.tf-card:nth-child(2){transition-delay:.1s}
.tf-card:nth-child(3){transition-delay:.2s}
.tf-icon{margin:0 auto 20px;height:40px;display:flex;align-items:center;justify-content:center}
.tf-card h3{font-size:16px;font-weight:700;letter-spacing:-0.01em;margin-bottom:8px}
.tf-card p{font-size:14px;color:var(--muted);line-height:1.7;max-width:280px;margin:0 auto}

/* ===== Use Cases Section (Dark) ===== */
.section-usecases{background:#1c1917;color:#e7e5e4;padding:100px 0 80px}
.usecases-header{margin-bottom:48px}
.usecases-title{font-size:clamp(28px,3.8vw,44px);font-weight:700;letter-spacing:-0.025em;line-height:1.15;color:#fff;margin-bottom:14px}
.usecases-desc{font-size:15px;color:rgba(255,255,255,0.45);line-height:1.7;max-width:520px}

/* Use Cases Showcase */
.usecases-showcase{
  display:grid;grid-template-columns:repeat(3,1fr);gap:12px;
  margin-bottom:24px;min-height:460px;
}

/* AI Prompt Mockup */
.showcase-prompt-app{
  background:#292524;border:1px solid rgba(255,255,255,0.08);border-radius:10px;
  overflow:hidden;display:flex;flex-direction:column;
  opacity:0;transform:translateY(16px);transition:opacity .6s ease,transform .6s ease;
}
.showcase-prompt-app.in-view{opacity:1;transform:translateY(0)}
.prompt-app-header{
  display:flex;align-items:center;gap:12px;
  padding:12px 16px;border-bottom:1px solid rgba(255,255,255,0.06);
}
.prompt-app-dots{display:flex;gap:6px}
.prompt-app-dots span{width:10px;height:10px;border-radius:50%;background:rgba(255,255,255,0.1)}
.prompt-app-label{font-size:12px;color:rgba(255,255,255,0.4);font-weight:600;margin-left:auto}
.prompt-app-messages{flex:1;padding:16px;display:flex;flex-direction:column;gap:12px;overflow:hidden}
.prompt-app-msg-assistant{display:flex;gap:10px;align-items:flex-start}
.prompt-app-avatar-ai{
  width:28px;height:28px;border-radius:6px;background:rgba(255,255,255,0.08);
  display:flex;align-items:center;justify-content:center;
  font-size:10px;color:rgba(255,255,255,0.4);font-weight:700;flex-shrink:0;
}
.prompt-app-text{font-size:12px;color:rgba(255,255,255,0.5);line-height:1.6;padding-top:4px}
.prompt-app-msg-user{display:flex;justify-content:flex-end}
.prompt-app-text-user{
  font-size:12px;color:rgba(255,255,255,0.7);line-height:1.6;
  background:rgba(249,115,22,0.15);border:1px solid rgba(249,115,22,0.2);
  padding:10px 14px;border-radius:10px 10px 2px 10px;max-width:85%;
}
.prompt-app-input-area{padding:12px 16px;border-top:1px solid rgba(255,255,255,0.06)}
.prompt-app-input{
  display:flex;align-items:center;justify-content:space-between;
  padding:10px 14px;border:1px solid rgba(255,255,255,0.1);border-radius:8px;
}
.prompt-app-placeholder{font-size:12px;color:rgba(255,255,255,0.25)}

/* Slack Mockup */
.showcase-slack-app{
  background:#292524;border:1px solid rgba(255,255,255,0.08);border-radius:10px;
  overflow:hidden;display:grid;grid-template-columns:100px 1fr;
  opacity:0;transform:translateY(16px);transition:opacity .6s ease .1s,transform .6s ease .1s;
}
.showcase-slack-app.in-view{opacity:1;transform:translateY(0)}
.slack-app-sidebar{background:#3e1c4f;padding:12px 8px;border-right:1px solid rgba(255,255,255,0.06)}
.slack-app-workspace{
  width:28px;height:28px;border-radius:6px;background:rgba(255,255,255,0.15);
  display:flex;align-items:center;justify-content:center;
  font-size:12px;color:#fff;font-weight:700;margin-bottom:16px;
}
.slack-app-channels{display:flex;flex-direction:column;gap:4px}
.slack-app-ch{font-size:11px;color:rgba(255,255,255,0.4);padding:4px 8px;border-radius:4px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.slack-app-ch.active{background:rgba(255,255,255,0.1);color:#fff}
.slack-app-main{display:flex;flex-direction:column}
.slack-app-topbar{padding:10px 14px;border-bottom:1px solid rgba(255,255,255,0.06);font-size:13px;color:#fff}
.slack-app-messages{flex:1;padding:12px 14px;display:flex;flex-direction:column;gap:12px;overflow:hidden}
.slack-app-msg{display:flex;gap:8px;align-items:flex-start}
.slack-app-avatar{
  width:28px;height:28px;border-radius:6px;background:rgba(255,255,255,0.1);
  display:flex;align-items:center;justify-content:center;
  font-size:11px;color:rgba(255,255,255,0.5);font-weight:600;flex-shrink:0;
}
.slack-app-avatar.self{background:rgba(249,115,22,0.2);color:var(--primary-light)}
.slack-app-meta{margin-bottom:2px}
.slack-app-meta strong{font-size:12px;color:rgba(255,255,255,0.7)}
.slack-app-meta span{font-size:10px;color:rgba(255,255,255,0.3);margin-left:6px}
.slack-app-msg p{font-size:11px;color:rgba(255,255,255,0.45);line-height:1.5}
.slack-typing{border-right:2px solid var(--primary-light);padding-right:2px;animation:blink 1s step-end infinite}
.slack-app-input-area{padding:8px 10px;border-top:1px solid rgba(255,255,255,0.06)}
.slack-input-box{
  border:1px solid rgba(255,255,255,0.15);border-radius:8px;overflow:hidden;
}
.slack-input-toolbar{
  display:flex;align-items:center;gap:2px;padding:4px 8px;
  border-bottom:1px solid rgba(255,255,255,0.08);
}
.slack-tb-icon{
  font-size:10px;color:rgba(255,255,255,0.35);padding:2px 4px;font-family:var(--mono);
}
.slack-tb-strike{text-decoration:line-through}
.slack-tb-sep{width:1px;height:12px;background:rgba(255,255,255,0.1);margin:0 2px}
.slack-input-body{padding:8px 10px;min-height:24px;display:flex;align-items:center}
.slack-input-bottom{
  display:flex;align-items:center;justify-content:space-between;
  padding:4px 8px;border-top:1px solid rgba(255,255,255,0.08);
}
.slack-input-bottom-left{display:flex;align-items:center;gap:2px}
.slack-send-btn{
  width:20px;height:20px;border-radius:4px;background:rgba(255,255,255,0.08);
  display:flex;align-items:center;justify-content:center;
}

/* LINE Mockup */
.showcase-line-app{
  background:#8cb4c9;border:1px solid rgba(255,255,255,0.08);border-radius:10px;
  overflow:hidden;display:flex;flex-direction:column;
  opacity:0;transform:translateY(16px);transition:opacity .6s ease .2s,transform .6s ease .2s;
}
.showcase-line-app.in-view{opacity:1;transform:translateY(0)}
.line-app-header{
  display:flex;align-items:center;gap:10px;
  padding:10px 14px;background:#fff;border-bottom:1px solid #e5e5e5;
}
.line-app-header strong{font-size:13px;color:#333;flex:1}
.line-header-icons{display:flex;gap:10px;align-items:center}
.line-app-messages{flex:1;padding:14px 12px;display:flex;flex-direction:column;gap:8px;overflow:hidden}
.line-bubble-other{display:flex;align-items:flex-start;gap:6px;max-width:85%}
.line-avatar-small{width:24px;height:24px;border-radius:50%;background:rgba(255,255,255,0.7);flex-shrink:0}
.line-bubble-col{display:flex;flex-direction:column;gap:2px}
.line-bubble-other p{
  font-size:11px;color:#333;line-height:1.5;
  background:#fff;padding:8px 12px;border-radius:2px 14px 14px 14px;
}
.line-bubble-me{max-width:80%;align-self:flex-end;display:flex;align-items:flex-end;gap:4px}
.line-bubble-me p{
  font-size:11px;color:#fff;line-height:1.5;
  background:#06c755;padding:8px 12px;border-radius:14px 14px 2px 14px;
}
.line-meta-right{display:flex;flex-direction:column;align-items:flex-end;gap:0;flex-shrink:0}
.line-read{font-size:8px;color:rgba(255,255,255,0.7);line-height:1}
.line-time{font-size:8px;color:rgba(255,255,255,0.6);display:inline-block}
.line-app-input-area{
  padding:8px 10px;background:#fff;border-top:1px solid #e5e5e5;
  display:flex;align-items:center;gap:8px;
}
.line-input-icons{display:flex;gap:6px;align-items:center;flex-shrink:0}
.line-input-box{
  flex:1;padding:6px 10px;background:#f5f5f5;border-radius:16px;
  font-size:11px;color:#333;min-height:28px;display:flex;align-items:center;
}

/* Use Case Info Cards */
.usecases-cards-row{display:grid;grid-template-columns:repeat(3,1fr);gap:12px}
.usecase-info-card{
  background:#292524;border:1px solid rgba(255,255,255,0.08);border-radius:10px;
  padding:24px;
  opacity:0;transform:translateY(12px);transition:opacity .5s ease,transform .5s ease;
}
.usecase-info-card.in-view{opacity:1;transform:translateY(0)}
.usecase-info-card h3{font-size:16px;font-weight:700;color:#fff;margin-bottom:8px}
.usecase-info-card p{font-size:13px;color:rgba(255,255,255,0.45);line-height:1.6}

/* ===== Results Section ===== */
.section-results{background:#1c1917;color:#fff;padding:80px 0 100px}
.results-content{margin-bottom:48px}
.results-title{font-size:clamp(28px,3.8vw,44px);font-weight:700;letter-spacing:-0.025em;line-height:1.15;margin-bottom:14px}
.results-desc{font-size:15px;color:rgba(255,255,255,0.4);line-height:1.7}
.results-stats{display:grid;grid-template-columns:1fr 1fr;gap:40px}
.result-stat{
  opacity:0;transform:translateY(12px);transition:opacity .5s ease,transform .5s ease;
}
.result-stat.in-view{opacity:1;transform:translateY(0)}
.result-stat:nth-child(2){transition-delay:.15s}
.result-stat-top{display:flex;align-items:baseline;justify-content:space-between;padding-bottom:20px}
.result-value{font-size:clamp(48px,6vw,72px);font-weight:700;letter-spacing:-0.03em;line-height:1;color:var(--primary)}
.result-value small{font-size:clamp(16px,2vw,24px);font-weight:400;color:rgba(255,255,255,0.5)}
.result-label{font-size:14px;color:rgba(255,255,255,0.4)}
.result-line{height:1px;background:rgba(255,255,255,0.1)}

/* ===== Features Grid ===== */
.section-features-grid{background:var(--bg);border-top:1px solid var(--border);padding:100px 0}
.fgrid{display:grid;grid-template-columns:1fr 1fr;gap:0;border:1px solid var(--border);border-radius:var(--radius);overflow:hidden;background:var(--card)}
.fgrid-item{
  padding:28px;border-bottom:1px solid var(--border);border-right:1px solid var(--border);
  opacity:0;transform:translateY(12px);transition:opacity .5s ease,transform .5s ease;
}
.fgrid-item.in-view{opacity:1;transform:translateY(0)}
.fgrid-item:nth-child(2){transition-delay:.1s}
.fgrid-item:nth-child(3){transition-delay:.15s}
.fgrid-item:nth-child(4){transition-delay:.2s}
.fgrid-item:nth-child(5){transition-delay:.25s}
.fgrid-item:nth-child(6){transition-delay:.3s}
.fgrid-item:nth-child(even){border-right:none}
.fgrid-item:nth-last-child(-n+2){border-bottom:none}
.fgrid-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:16px}
.fgrid-num{font-family:var(--mono);font-size:12px;color:var(--muted)}
.fgrid-cat{font-family:var(--mono);font-size:11px;color:var(--muted);letter-spacing:0.06em;font-weight:500}
.fgrid-visual{height:180px;margin-bottom:16px;display:flex;align-items:center;justify-content:center}
.fgrid-item h3{font-size:16px;font-weight:700;margin-bottom:6px}
.fgrid-item p{font-size:13px;color:var(--muted);line-height:1.6}

/* Feature Grid Mocks */
.fgrid-cleanup-mock{width:100%;padding:16px;position:relative;overflow:hidden}
.fgrid-cleanup-line{font-size:clamp(14px,1.8vw,20px);font-weight:400;letter-spacing:-0.01em;line-height:1.8;color:var(--text)}
.cleanup-struck{color:var(--primary);text-decoration:line-through;text-decoration-color:var(--primary);opacity:0.7}
.cleanup-pill{display:inline-block;width:40px;height:20px;background:var(--bg3);border-radius:10px;margin:0 2px;vertical-align:middle;border:1.5px dashed var(--border)}
.cleanup-pill.sm{width:24px}
.fgrid-cleanup-cursor{position:absolute;right:38%;top:8px;bottom:8px;width:3px;background:linear-gradient(180deg,rgba(249,115,22,0.7),rgba(249,115,22,0.2));border-radius:2px}

.fgrid-dict-mock{width:100%;border:1.5px dashed var(--border);border-radius:10px;padding:16px;background:var(--bg)}
.fgrid-dict-input{display:flex;align-items:center;justify-content:space-between;padding:10px 14px;border:1px solid var(--border);border-radius:8px;background:#fff;margin-bottom:14px}
.dict-placeholder{font-size:13px;color:var(--muted)}
.dict-add-btn{display:inline-block;padding:6px 20px;background:var(--primary);color:#fff;font-size:12px;font-weight:600;border-radius:6px}
.fgrid-dict-tags{display:flex;flex-wrap:wrap;gap:6px}
.dict-tag{height:24px;width:64px;background:var(--bg3);border-radius:12px}
.dict-tag.sm{width:44px}

.fgrid-privacy-mock{display:flex;flex-direction:column;align-items:center;gap:8px}
.fgrid-privacy-label{font-size:12px;color:var(--muted);font-weight:500}

.fgrid-shortcut-mock{display:flex;align-items:center;gap:6px}
.kbd-display{
  display:inline-flex;align-items:center;justify-content:center;
  padding:8px 14px;background:var(--card);
  border:1px solid var(--border);border-radius:8px;font-size:14px;
  font-family:var(--mono);box-shadow:0 2px 0 rgba(0,0,0,0.06);
  color:var(--text);font-weight:500;min-width:40px;
}
.kbd-plus{font-size:14px;color:var(--muted);font-weight:400}

.fgrid-chip-mock{display:flex;flex-direction:column;align-items:center;gap:8px}
.fgrid-chip-label{font-size:12px;color:var(--muted);font-weight:500;font-family:var(--mono)}

.fgrid-compare-mock{width:100%;display:flex;flex-direction:column;gap:8px}
.fgrid-compare-item{padding:10px 12px;border-radius:8px;font-size:12px;line-height:1.6}
.fgrid-compare-item p{margin:0}
.fgrid-compare-tag{display:inline-block;font-size:9px;font-weight:600;letter-spacing:.04em;padding:2px 6px;border-radius:4px;margin-bottom:4px}
.fgrid-compare-bad{background:var(--bg2);border:1px solid var(--border)}
.fgrid-compare-bad .fgrid-compare-tag{background:var(--bg3);color:var(--muted)}
.fgrid-compare-good{background:#fff7ed;border:1px solid #fed7aa}
.fgrid-compare-good .fgrid-compare-tag{background:var(--primary);color:#fff}
.fgrid-err{color:#ef4444;text-decoration:line-through;text-decoration-color:#fca5a5}
.fgrid-ok{color:var(--primary);font-weight:600}

/* ===== Pricing ===== */
.section-pricing{background:var(--bg);padding:100px 0}
.pricing-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:16px;max-width:1100px;margin:48px auto 0}
.price-card{
  background:var(--card);border:1px solid var(--border);border-radius:14px;padding:32px;
  position:relative;display:flex;flex-direction:column;
  opacity:0;transform:translateY(12px);transition:opacity .5s ease,transform .5s ease;
}
.price-card.in-view{opacity:1;transform:translateY(0)}
.price-card:nth-child(2){transition-delay:.1s}
.price-card:nth-child(3){transition-delay:.2s}
.price-card-recommended{border-color:var(--primary);box-shadow:0 0 0 1px var(--primary)}
.price-badge{
  position:absolute;top:-12px;left:50%;transform:translateX(-50%);
  background:var(--primary);color:#fff;font-size:11px;font-weight:700;
  padding:4px 14px;border-radius:12px;white-space:nowrap;
}
.price-card-top{min-height:100px;margin-bottom:4px}
.price-tier{font-size:13px;font-weight:700;color:var(--muted);margin-bottom:8px}
.price-amount{font-size:44px;font-weight:700;letter-spacing:-0.03em;line-height:1;margin-bottom:4px}
.price-amount span{font-size:15px;font-weight:400;color:var(--muted)}
.price-billing{font-size:12px;color:var(--muted);margin-top:8px}
.price-billing strong{color:var(--primary);font-weight:700}
.price-card .btn-primary,.price-card .btn-outline{margin:16px 0;width:100%}
.price-card ul{margin-top:4px;flex:1}
.price-card li{display:flex;align-items:center;gap:8px;font-size:13px;color:var(--muted);padding:8px 0;border-top:1px solid var(--border);white-space:nowrap}
.check-icon{flex-shrink:0}
.price-card-coming-soon{opacity:1;background:var(--bg2);border-style:dashed}
.price-card-coming-soon .price-billing,.price-card-coming-soon li{color:var(--muted)}
.price-amount-soon{font-size:24px;font-weight:700;letter-spacing:-0.02em;line-height:1;margin-bottom:4px;color:var(--muted)}
.btn-disabled{pointer-events:none;opacity:0.5}
.pricing-footnote{text-align:center;font-size:13px;color:var(--muted);margin-top:28px}

/* ===== CTA ===== */
.section-cta{
  padding:100px 0 0;position:relative;overflow:hidden;
  background:linear-gradient(180deg,var(--bg) 0%,#fef3e2 100%);
}
.cta-layout{display:grid;grid-template-columns:1fr 1fr;align-items:center;min-height:400px;position:relative;z-index:1}
.cta-left{padding-right:40px}
.cta-title{font-size:clamp(36px,5vw,56px);font-weight:700;letter-spacing:-0.03em;line-height:1.1;margin-bottom:28px}
.btn-cta{
  display:inline-flex;align-items:center;gap:10px;
  background:linear-gradient(135deg,var(--primary-light),var(--primary));color:#fff;
  font-weight:700;font-size:15px;padding:14px 32px;border-radius:14px;
  box-shadow:0 4px 16px rgba(249,115,22,0.3);transition:all .2s ease;cursor:pointer;
}
.btn-cta:hover{box-shadow:0 6px 24px rgba(249,115,22,0.4);transform:translateY(-2px)}
.btn-cta svg{width:18px;height:18px}
.cta-note{font-size:13px;color:var(--muted);margin-top:16px}
.cta-right{display:flex;align-items:center;justify-content:center;position:relative}
.cta-koe{
  font-size:clamp(160px,20vw,280px);font-weight:700;line-height:1;
  background:linear-gradient(135deg,var(--primary-light) 0%,var(--primary) 40%,var(--primary-h) 100%);
  -webkit-background-clip:text;-webkit-text-fill-color:transparent;
  background-clip:text;
  filter:drop-shadow(0 8px 40px rgba(249,115,22,0.3));
  animation:koeFloat 6s ease-in-out infinite;
  user-select:none;
}
@keyframes koeFloat{0%,100%{transform:translateY(0)}50%{transform:translateY(-12px)}}
.cta-water{
  position:relative;height:280px;margin-top:-100px;overflow:hidden;
  background:linear-gradient(180deg,transparent 0%,rgba(253,186,116,0.1) 20%,rgba(249,115,22,0.08) 50%,var(--bg2) 100%);
}
.cta-water::before{
  content:'';position:absolute;top:0;left:50%;transform:translateX(-50%);
  width:600px;height:120px;
  background:radial-gradient(ellipse at center,rgba(249,115,22,0.15) 0%,rgba(253,186,116,0.06) 40%,transparent 70%);
  filter:blur(6px);
}

/* ===== Footer ===== */
.footer{background:var(--bg2);padding:56px 0 36px}
.footer-layout{display:grid;grid-template-columns:200px 1fr;gap:60px;margin-bottom:36px}
.footer-logo{font-weight:700;font-size:20px;letter-spacing:0.02em}
.footer-tagline{font-size:13px;color:var(--muted);margin-top:4px}
.footer-links{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.footer-col a{display:block;font-size:14px;color:var(--muted);padding:3px 0;transition:color .15s}
.footer-col a:hover{color:var(--text)}
.footer-bottom{
  display:flex;align-items:center;
  padding-top:24px;border-top:1px solid var(--border);
}
.footer-copyright{font-size:13px;color:var(--muted)}

/* ===== Animations ===== */
@keyframes fadeInUp{from{opacity:0;transform:translateY(24px)}to{opacity:1;transform:translateY(0)}}
.hero-title{display:flex;align-items:center;gap:clamp(16px,3vw,32px);flex-wrap:wrap}
.hero-koeji{
  font-size:clamp(80px,14vw,180px);letter-spacing:-0.04em;
  background:linear-gradient(135deg,var(--primary-light) 0%,var(--primary) 40%,var(--primary-h) 100%);
  -webkit-background-clip:text;-webkit-text-fill-color:transparent;
  background-clip:text;
  filter:drop-shadow(0 6px 32px rgba(249,115,22,0.25));
  animation:fadeInUp .8s ease both,koeFloat 6s 1s ease-in-out infinite;
  line-height:1;
}
.hero-title{animation:fadeInUp .8s ease both}
.hero-sub{animation:fadeInUp .8s .15s ease both}
.hero-actions{animation:fadeInUp .8s .3s ease both}

/* ===== Responsive ===== */
@media(max-width:999px){
  .nav-pill{display:none}
  .nav-mobile-btn{display:flex}
  .container,.container-narrow{padding:0 24px}
  .nav{padding:14px 24px}
  .hero-inner{padding:100px 24px 0}
  .hero-title{font-size:clamp(36px,8vw,52px)}
  .three-features-grid{grid-template-columns:1fr;gap:20px}
  .speed-comparison{grid-template-columns:1fr;gap:0}
  .speed-divider{width:100%;height:1px}
  .usecases-showcase{grid-template-columns:1fr;min-height:auto;gap:16px}
  .usecases-cards-row{grid-template-columns:1fr}
  .results-stats{grid-template-columns:1fr}
  .fgrid{grid-template-columns:1fr}
  .fgrid-item{border-right:none!important}
  .fgrid-item:last-child{border-bottom:none}
  .pricing-grid{grid-template-columns:1fr 1fr;max-width:560px}
  .cta-layout{grid-template-columns:1fr;text-align:center}
  .cta-left{padding:0;margin-bottom:40px}
  .cta-right{justify-content:center}
  .cta-koe{font-size:clamp(120px,18vw,200px)}
  .footer-layout{grid-template-columns:1fr}
  .footer-links{grid-template-columns:repeat(3,1fr)}
  .showcase-slack-app{grid-template-columns:80px 1fr}
  .demo-editor-body{padding:24px 20px;min-height:140px;font-size:14px}
}
@media(min-width:810px) and (max-width:999px){
  .three-features-grid{grid-template-columns:repeat(3,1fr)}
  .usecases-showcase{grid-template-columns:1fr 1fr}
  .usecases-cards-row{grid-template-columns:repeat(2,1fr)}
}
@media(max-width:480px){
  .section{padding:64px 0}
  .container,.container-narrow{padding:0 20px}
  .nav{padding:14px 20px}
  .hero-inner{padding:100px 20px 0}
  .hero-actions{flex-direction:column;align-items:flex-start}
  .footer-links{grid-template-columns:1fr 1fr;gap:16px}
  .speed-side{padding:24px 20px}
  .speed-overlay{padding:8px 16px;gap:8px}
  .demo-editor-body{padding:20px 16px;min-height:120px;font-size:13px}
  .cta-koe{font-size:clamp(100px,16vw,160px)}
  .fgrid{border-radius:8px}
  .showcase-slack-app{grid-template-columns:1fr}
  .slack-app-sidebar{display:none}
  .fgrid-shortcut-mock{flex-wrap:wrap;justify-content:center}
  .pricing-grid{grid-template-columns:1fr;max-width:320px}
}
@media(prefers-reduced-motion:reduce){
  *,*::before,*::after{animation-duration:.01ms!important;transition-duration:.01ms!important}
  html{scroll-behavior:auto}
}