/* ===== FLOWBASE Shared Styles ===== */

:root,
:root[data-theme="dark"]{
  --obsidian:#0A0A0F;
  --pearl:#FAFAFB;
  --iris:#6366F1;
  --aqua:#06B6D4;
  --magenta:#EC4899;

  --bg:#0A0A0F;
  --bg-elev:#0E0F17;
  --surface:#13141C;
  --surface-2:#1B1D27;
  --surface-3:#22242F;

  --text:#F8FAFC;
  --text-dim:rgba(248,250,252,0.62);
  --text-mute:rgba(248,250,252,0.38);
  --text-faint:rgba(248,250,252,0.18);

  --glass:rgba(255,255,255,0.06);
  --glass-hi:rgba(255,255,255,0.10);
  --glass-border:rgba(255,255,255,0.08);
  --glass-border-hi:rgba(255,255,255,0.16);
  --nav-bg:rgba(14,15,23,0.55);
  --nav-bg-hi:rgba(14,15,23,0.78);

  --shadow-card:0 24px 60px rgba(99,102,241,0.18),0 4px 16px rgba(0,0,0,0.4);
  --shadow-window:0 30px 80px rgba(99,102,241,0.18),0 80px 160px rgba(0,0,0,0.65),0 4px 16px rgba(0,0,0,0.4);
  --noise-blend:overlay;
  --noise-opacity:0.035;
}

:root[data-theme="light"]{
  --bg:#FAFAFB;
  --bg-elev:#FFFFFF;
  --surface:#FFFFFF;
  --surface-2:#F5F6FA;
  --surface-3:#EBECF2;

  --text:#0F172A;
  --text-dim:rgba(15,23,42,0.68);
  --text-mute:rgba(15,23,42,0.42);
  --text-faint:rgba(15,23,42,0.18);

  --glass:rgba(255,255,255,0.65);
  --glass-hi:rgba(255,255,255,0.85);
  --glass-border:rgba(15,23,42,0.08);
  --glass-border-hi:rgba(15,23,42,0.14);
  --nav-bg:rgba(255,255,255,0.65);
  --nav-bg-hi:rgba(255,255,255,0.85);

  --shadow-card:0 24px 60px rgba(99,102,241,0.12),0 4px 16px rgba(15,23,42,0.06);
  --shadow-window:0 30px 80px rgba(99,102,241,0.10),0 60px 120px rgba(15,23,42,0.12),0 4px 16px rgba(15,23,42,0.04);
  --noise-blend:multiply;
  --noise-opacity:0.025;
}

/* ===== BASE ===== */
*{box-sizing:border-box;margin:0;padding:0;}
html{scroll-behavior:smooth;}
body{
  background:var(--bg);color:var(--text);
  font-family:"Inter","Noto Sans JP",-apple-system,BlinkMacSystemFont,system-ui,sans-serif;
  font-feature-settings:"ss01","cv11","calt";
  -webkit-font-smoothing:antialiased;
  -moz-osx-font-smoothing:grayscale;
  text-rendering:optimizeLegibility;
  font-size:16px;line-height:1.6;letter-spacing:-0.01em;
  overflow-x:hidden;
  cursor:none;
  transition:background .5s cubic-bezier(0.16,1,0.3,1),color .5s cubic-bezier(0.16,1,0.3,1);
}
:lang(ja),.jp{font-family:"Noto Sans JP","Inter",sans-serif;font-feature-settings:"palt";}

body::before{
  content:"";position:fixed;inset:0;pointer-events:none;z-index:9999;
  background-image:url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' width='140' height='140'><filter id='n'><feTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='2' stitchTiles='stitch'/><feColorMatrix values='0 0 0 0 1 0 0 0 0 1 0 0 0 0 1 0 0 0 0.55 0'/></filter><rect width='100%25' height='100%25' filter='url(%23n)' opacity='0.5'/></svg>");
  opacity:var(--noise-opacity);mix-blend-mode:var(--noise-blend);
}

a{color:inherit;text-decoration:none;}
button{font:inherit;color:inherit;background:none;border:none;cursor:none;}
img,svg{display:block;max-width:100%;}
::selection{background:var(--iris);color:#fff;}

/* ===== CUSTOM CURSOR ===== */
.cursor-dot,.cursor-ring{
  position:fixed;top:0;left:0;pointer-events:none;z-index:10000;
  border-radius:50%;will-change:transform;
}
/* ドットは常に明確に見える: ハイコントラスト二重リング */
.cursor-dot{
  width:8px;height:8px;
  background:#fff;
  transform:translate(-50%,-50%);
  box-shadow:
    0 0 0 1.5px rgba(0,0,0,0.55),
    0 0 0 3px rgba(255,255,255,0.25),
    0 2px 8px rgba(0,0,0,0.4);
}
.cursor-ring{
  width:36px;height:36px;
  border:1.5px solid rgba(255,255,255,0.7);
  transform:translate(-50%,-50%);
  transition:width .35s cubic-bezier(0.16,1,0.3,1),
             height .35s cubic-bezier(0.16,1,0.3,1),
             background .35s cubic-bezier(0.16,1,0.3,1),
             border-color .35s cubic-bezier(0.16,1,0.3,1),
             opacity .35s cubic-bezier(0.16,1,0.3,1);
  display:flex;align-items:center;justify-content:center;
  font-size:11px;font-weight:500;color:#fff;
  box-shadow:inset 0 0 0 1px rgba(0,0,0,0.3);
  mix-blend-mode:difference;
}
:root[data-theme="light"] .cursor-ring{border-color:rgba(0,0,0,0.7);box-shadow:inset 0 0 0 1px rgba(255,255,255,0.5);}
:root[data-theme="light"] .cursor-dot{
  background:#0F172A;
  box-shadow:
    0 0 0 1.5px rgba(255,255,255,0.7),
    0 0 0 3px rgba(0,0,0,0.15),
    0 2px 8px rgba(0,0,0,0.2);
}

/* ボタン上: ringだけ消す、dotは確実に残る */
.cursor-ring.on-button{
  width:0;height:0;border-width:0;opacity:0;
}
.cursor-ring.on-link{
  width:48px;height:48px;
  border-color:rgba(255,255,255,0.8);
}
.cursor-ring.on-card{
  width:84px;height:84px;
  background:rgba(255,255,255,0.06);
  backdrop-filter:blur(6px);
  border-color:rgba(255,255,255,0.6);
}
.cursor-ring.on-card::after{content:"View →";font-size:11px;letter-spacing:0;font-weight:500;}
.cursor-ring.on-image{width:72px;height:72px;}
.cursor-ring.on-image::after{content:"Drag";}

@media (max-width:1023px){
  body{cursor:auto;}
  .cursor-dot,.cursor-ring{display:none;}
  button,a{cursor:pointer;}
}

/* ===== NAV ===== */
.nav{
  position:fixed;top:0;left:0;right:0;z-index:1000;
  display:flex;align-items:center;justify-content:center;
  padding:18px 0;
  transition:padding .4s cubic-bezier(0.16,1,0.3,1);
}
.nav-inner{
  display:flex;align-items:center;justify-content:space-between;
  width:min(1280px,calc(100% - 48px));
  padding:10px 12px 10px 22px;
  background:var(--nav-bg);
  backdrop-filter:blur(24px) saturate(180%);
  -webkit-backdrop-filter:blur(24px) saturate(180%);
  border:1px solid var(--glass-border);
  border-radius:100px;
  box-shadow:0 8px 32px rgba(0,0,0,0.18),inset 0 1px 0 rgba(255,255,255,0.04);
  transition:all .5s cubic-bezier(0.16,1,0.3,1);
}
.nav.scrolled .nav-inner{background:var(--nav-bg-hi);border-color:var(--glass-border-hi);}
.nav-logo{display:flex;align-items:center;gap:8px;font-weight:600;font-size:15px;letter-spacing:-0.02em;}
.nav-logo-mark{
  width:22px;height:22px;border-radius:7px;
  background:conic-gradient(from 220deg at 50% 50%,var(--iris),var(--aqua),var(--magenta),var(--iris));
  position:relative;overflow:hidden;
}
.nav-logo-mark::after{content:"";position:absolute;inset:3px;border-radius:5px;background:var(--bg-elev);}
.nav-logo-mark::before{content:"";position:absolute;inset:7px;border-radius:50%;background:conic-gradient(from 0deg,var(--iris),var(--aqua));z-index:1;}
.nav-links{display:flex;gap:2px;align-items:center;}
.nav-links a{
  font-size:13.5px;font-weight:450;color:var(--text-dim);
  padding:8px 14px;border-radius:100px;
  transition:color .3s,background .3s;
  position:relative;
}
.nav-links a:hover{color:var(--text);background:var(--glass);}
.nav-links a.active{color:var(--text);}
.nav-links a.active::after{
  content:"";position:absolute;bottom:2px;left:50%;transform:translateX(-50%);
  width:4px;height:4px;border-radius:50%;background:var(--iris);
}
.nav-right{display:flex;align-items:center;gap:6px;}
.theme-toggle{
  width:36px;height:36px;border-radius:50%;
  background:var(--glass);border:1px solid var(--glass-border);
  display:flex;align-items:center;justify-content:center;
  transition:background .3s,border-color .3s,transform .3s;
}
.theme-toggle:hover{background:var(--glass-hi);transform:scale(1.05);}
.theme-toggle svg{width:15px;height:15px;color:var(--text);}
.theme-toggle .sun{display:none;}
.theme-toggle .moon{display:block;}
:root[data-theme="light"] .theme-toggle .sun{display:block;}
:root[data-theme="light"] .theme-toggle .moon{display:none;}
.nav-cta{
  display:flex;align-items:center;gap:8px;
  padding:9px 18px;background:var(--text);color:var(--bg);
  font-size:13px;font-weight:600;letter-spacing:-0.01em;
  border-radius:100px;
  transition:transform .4s cubic-bezier(0.16,1,0.3,1),box-shadow .4s cubic-bezier(0.16,1,0.3,1);
}
.nav-cta:hover{transform:translateY(-1px);box-shadow:0 8px 24px rgba(255,255,255,0.18);}

/* ===== BUTTONS ===== */
.btn{
  position:relative;overflow:hidden;
  display:inline-flex;align-items:center;gap:8px;
  padding:14px 24px;
  font-size:14.5px;font-weight:550;letter-spacing:-0.01em;
  border-radius:100px;
  transition:transform .4s cubic-bezier(0.16,1,0.3,1),box-shadow .4s cubic-bezier(0.16,1,0.3,1);
}
.btn-primary{
  background:linear-gradient(135deg,var(--iris),var(--aqua));
  color:#fff;
  box-shadow:0 1px 0 rgba(255,255,255,0.18) inset,0 12px 32px rgba(99,102,241,0.35),0 4px 12px rgba(6,182,212,0.18);
}
.btn-primary::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(120deg,transparent 30%,rgba(255,255,255,0.35) 50%,transparent 70%);
  transform:translateX(-100%);
  transition:transform .9s cubic-bezier(0.16,1,0.3,1);
}
.btn-primary:hover::after{transform:translateX(100%);}
.btn-primary:hover{transform:translateY(-2px);box-shadow:0 1px 0 rgba(255,255,255,0.18) inset,0 16px 40px rgba(99,102,241,0.5),0 6px 16px rgba(6,182,212,0.28);}
.btn-primary .arrow{transition:transform .4s cubic-bezier(0.16,1,0.3,1);display:inline-block;}
.btn-primary:hover .arrow{transform:translateX(4px);}
.btn-ghost{
  background:var(--glass);border:1px solid var(--glass-border);color:var(--text);
  backdrop-filter:blur(12px);
}
.btn-ghost:hover{background:var(--glass-hi);border-color:var(--glass-border-hi);transform:translateY(-2px);}
.btn-ghost .play{
  width:18px;height:18px;border-radius:50%;
  background:var(--text);color:var(--bg);
  display:inline-flex;align-items:center;justify-content:center;font-size:8px;
}

/* ===== SECTION ===== */
.section{padding:128px 24px;position:relative;}
.section-inner{max-width:1240px;margin:0 auto;}
.section-eyebrow{
  font-size:12px;font-weight:600;letter-spacing:0.16em;text-transform:uppercase;
  color:var(--text-mute);margin-bottom:14px;
  display:flex;align-items:center;gap:10px;
}
.section-eyebrow::before{content:"";display:inline-block;width:24px;height:1px;background:var(--text-mute);}
.section-title{
  font-size:clamp(36px,4.6vw,60px);font-weight:600;letter-spacing:-0.035em;line-height:1.04;
  max-width:780px;margin-bottom:20px;
}
.grad{
  background:linear-gradient(135deg,var(--iris),var(--aqua));
  -webkit-background-clip:text;background-clip:text;-webkit-text-fill-color:transparent;
}
.section-lead{font-size:17px;color:var(--text-dim);max-width:580px;margin-bottom:64px;line-height:1.6;}

/* ===== HERO COMMON ===== */
.hero{
  position:relative;min-height:100vh;
  display:flex;flex-direction:column;align-items:center;justify-content:center;
  padding:160px 24px 140px;overflow:hidden;
}
.mesh{
  position:absolute;inset:-20%;z-index:0;
  filter:blur(120px) saturate(140%);
  opacity:.55;
  animation:mesh 24s cubic-bezier(0.16,1,0.3,1) infinite alternate;
}
:root[data-theme="light"] .mesh{opacity:.45;}
.mesh::before,.mesh::after,.mesh > span{content:"";position:absolute;border-radius:50%;}
.mesh::before{width:55%;height:55%;left:-5%;top:5%;background:radial-gradient(circle at 30% 30%,var(--iris),transparent 60%);}
.mesh::after{width:60%;height:60%;right:-10%;top:20%;background:radial-gradient(circle at 70% 50%,var(--aqua),transparent 65%);}
.mesh > span{width:50%;height:50%;left:30%;bottom:-10%;background:radial-gradient(circle at 50% 50%,var(--magenta),transparent 60%);display:block;}
@keyframes mesh{0%{transform:rotate(0deg) scale(1);} 100%{transform:rotate(40deg) scale(1.1);}}

.hero-eyebrow{
  display:inline-flex;align-items:center;gap:10px;
  padding:6px 14px 6px 8px;
  background:var(--glass);border:1px solid var(--glass-border);
  border-radius:100px;
  font-size:12.5px;font-weight:500;color:var(--text-dim);
  position:relative;z-index:2;margin-bottom:36px;
  backdrop-filter:blur(20px);
}
.hero-eyebrow .pill{
  display:inline-block;padding:2px 10px;
  font-size:10.5px;font-weight:600;letter-spacing:0.04em;
  background:linear-gradient(135deg,var(--iris),var(--aqua));
  color:#fff;border-radius:100px;text-transform:uppercase;
}
.hero-eyebrow .arrow{margin-left:4px;color:var(--text-mute);}

h1.hero-title{
  font-size:clamp(56px,10vw,140px);
  font-weight:600;line-height:0.92;letter-spacing:-0.045em;
  text-align:center;position:relative;z-index:2;
  background:linear-gradient(180deg,var(--text) 0%,var(--text) 50%,color-mix(in srgb, var(--text) 65%, transparent) 100%);
  -webkit-background-clip:text;background-clip:text;-webkit-text-fill-color:transparent;
  margin-bottom:32px;
}
h1.hero-title .accent{
  background:linear-gradient(135deg,var(--iris) 0%,var(--aqua) 60%,var(--magenta) 100%);
  -webkit-background-clip:text;background-clip:text;-webkit-text-fill-color:transparent;
  font-style:italic;font-weight:500;
}
.hero-sub{
  font-size:clamp(15px,1.4vw,18px);color:var(--text-dim);
  text-align:center;letter-spacing:-0.005em;
  max-width:600px;margin-bottom:48px;
  position:relative;z-index:2;font-weight:400;
}
.hero-sub .jp{display:block;margin-top:8px;font-size:0.95em;color:var(--text-mute);}
.hero-cta{
  display:flex;gap:12px;flex-wrap:wrap;justify-content:center;
  position:relative;z-index:2;
}
/* スクロール指示器をボタンと干渉しない右下に配置 */
.scroll-indicator{
  position:absolute;bottom:32px;right:40px;
  display:flex;flex-direction:column;align-items:center;gap:8px;
  color:var(--text-mute);font-size:10.5px;letter-spacing:0.18em;text-transform:uppercase;
  z-index:2;
  writing-mode:vertical-rl;
}
.scroll-indicator .line{
  writing-mode:horizontal-tb;
  width:1px;height:48px;
  background:linear-gradient(180deg,var(--text-mute),transparent);
  position:relative;overflow:hidden;
}
.scroll-indicator .line::after{
  content:"";position:absolute;top:-100%;left:0;width:100%;height:100%;
  background:linear-gradient(180deg,transparent,var(--text),transparent);
  animation:scrollDown 2.4s cubic-bezier(0.16,1,0.3,1) infinite;
}
@keyframes scrollDown{0%{top:-100%;}100%{top:100%;}}
@media (max-width:768px){.scroll-indicator{display:none;}}

/* ===== MAC WINDOW ===== */
.mac-window{
  border-radius:16px;
  background:linear-gradient(180deg,var(--surface-2) 0%,var(--surface) 100%);
  border:1px solid var(--glass-border-hi);
  box-shadow:var(--shadow-window);
  overflow:hidden;position:relative;
}
.mac-titlebar{
  display:flex;align-items:center;
  padding:12px 16px;
  border-bottom:1px solid var(--glass-border);
  background:var(--glass);
  position:relative;
}
.traffic{display:flex;gap:8px;}
.traffic span{width:12px;height:12px;border-radius:50%;display:block;}
.traffic .r{background:#FF5F57;}.traffic .y{background:#FEBC2E;}.traffic .g{background:#28C840;}
.url-bar{
  position:absolute;left:50%;top:50%;transform:translate(-50%,-50%);
  display:flex;align-items:center;gap:8px;
  padding:5px 14px;background:var(--glass);
  border:1px solid var(--glass-border);border-radius:8px;
  font-family:"JetBrains Mono",monospace;
  font-size:11.5px;color:var(--text-dim);
  min-width:280px;justify-content:center;
}
.url-bar svg{width:11px;height:11px;color:var(--text-mute);}

/* ===== REVEAL ===== */
.reveal{opacity:0;transform:translateY(40px);transition:opacity 1s cubic-bezier(0.16,1,0.3,1),transform 1s cubic-bezier(0.16,1,0.3,1);}
.reveal.in{opacity:1;transform:none;}

/* ===== FOOTER ===== */
.footer{
  padding:80px 24px 48px;
  border-top:1px solid var(--glass-border);
  background:var(--bg-elev);
}
.footer-inner{max-width:1240px;margin:0 auto;}
.footer-grid{
  display:grid;grid-template-columns:2fr 1fr 1fr 1fr 1fr;
  gap:48px;margin-bottom:64px;
}
.footer-brand{font-size:22px;font-weight:700;letter-spacing:-0.025em;display:flex;align-items:center;gap:10px;margin-bottom:14px;}
.footer-tag{color:var(--text-mute);font-size:13px;max-width:280px;line-height:1.6;}
.footer-col h4{font-size:11.5px;font-weight:600;color:var(--text-mute);letter-spacing:0.1em;text-transform:uppercase;margin-bottom:18px;}
.footer-col ul{list-style:none;display:flex;flex-direction:column;gap:10px;}
.footer-col a{font-size:13.5px;color:var(--text-dim);transition:color .3s;}
.footer-col a:hover{color:var(--text);}
.footer-bottom{
  padding-top:32px;border-top:1px solid var(--glass-border);
  display:flex;justify-content:space-between;align-items:center;
  font-size:12px;color:var(--text-mute);flex-wrap:wrap;gap:16px;
}
.footer-bottom .legal{display:flex;gap:24px;flex-wrap:wrap;}

@media (prefers-reduced-motion: reduce){
  *,*::before,*::after{
    animation-duration:0.001ms !important;
    animation-iteration-count:1 !important;
    transition-duration:0.001ms !important;
  }
  .mesh{animation:none;}
}

@media (max-width:1023px){
  .nav-links{display:none;}
  .footer-grid{grid-template-columns:1fr 1fr;}
}
@media (max-width:640px){
  .nav-cta span{display:none;}
}