/* ===========================================================
   Mu Works — landing styles
   Theme: sleek, clean, black with a single vermilion accent
   =========================================================== */

:root {
  --bg:        #0a0a0a;
  --bg-elev:   #111111;
  --bg-elev-2: #161616;
  --text:      #f4f3f0;
  --muted:     #9d9d97;
  --faint:     #6c6c66;
  --line:      rgba(255, 255, 255, 0.09);
  --line-soft: rgba(255, 255, 255, 0.05);
  --accent:    #cf4a3c;
  --accent-hi: #e35949;
  --accent-soft: rgba(207, 74, 60, 0.14);

  --sans: 'Inter', system-ui, -apple-system, 'Segoe UI', Roboto, sans-serif;
  --serif-jp: 'Noto Serif JP', 'Yu Mincho', 'Hiragino Mincho ProN', serif;

  --container: 1120px;
  --radius: 14px;
  --ease: cubic-bezier(0.22, 1, 0.36, 1);
}

/* ---------- Reset / base ---------- */
*, *::before, *::after { box-sizing: border-box; }

html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: var(--sans);
  font-size: 17px;
  line-height: 1.65;
  letter-spacing: 0.01em;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
  overflow-x: hidden;
}

h1, h2, h3 { line-height: 1.12; letter-spacing: -0.02em; font-weight: 600; margin: 0; }
p { margin: 0; }
a { color: inherit; text-decoration: none; }
img, svg { display: block; max-width: 100%; }

::selection { background: var(--accent); color: #fff; }

.container {
  width: 100%;
  max-width: var(--container);
  margin: 0 auto;
  padding: 0 28px;
}

/* ---------- Shared bits ---------- */
.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--muted);
  margin: 0 0 22px;
}
.eyebrow .dot {
  width: 6px; height: 6px; border-radius: 50%;
  background: var(--accent);
  box-shadow: 0 0 12px 1px var(--accent);
}

.seal {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 34px; height: 34px;
  border-radius: 8px;
  background: var(--accent);
  color: #f4f0e8;
  font-family: var(--serif-jp);
  font-weight: 700;
  font-size: 22px;
  line-height: 1;
  flex: none;
  box-shadow: 0 6px 22px -8px rgba(207, 74, 60, 0.7);
}
.brand-name {
  font-weight: 700;
  font-size: 15px;
  letter-spacing: 0.18em;
}
.jp { font-family: var(--serif-jp); color: var(--accent); }

/* ---------- Buttons ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 9px;
  padding: 14px 26px;
  border-radius: 999px;
  font-size: 14px;
  font-weight: 600;
  letter-spacing: 0.02em;
  border: 1px solid transparent;
  cursor: pointer;
  transition: transform 0.25s var(--ease), background 0.25s var(--ease),
              border-color 0.25s var(--ease), color 0.25s var(--ease);
  white-space: nowrap;
}
.btn:active { transform: translateY(1px); }
.btn-sm { padding: 10px 18px; }
.btn-block { width: 100%; justify-content: center; }

.btn-primary {
  background: var(--text);
  color: #0a0a0a;
}
.btn-primary:hover { background: #fff; transform: translateY(-2px); }

.btn-ghost {
  background: transparent;
  color: var(--text);
  border-color: var(--line);
}
.btn-ghost:hover { border-color: rgba(255,255,255,0.35); transform: translateY(-2px); }

/* ---------- Header ---------- */
.site-header {
  position: fixed;
  inset: 0 0 auto 0;
  z-index: 50;
  transition: background 0.3s var(--ease), border-color 0.3s var(--ease),
              backdrop-filter 0.3s var(--ease);
  border-bottom: 1px solid transparent;
}
.site-header.scrolled {
  background: rgba(10, 10, 10, 0.72);
  backdrop-filter: blur(14px) saturate(140%);
  -webkit-backdrop-filter: blur(14px) saturate(140%);
  border-bottom-color: var(--line);
}
.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 74px;
}
.brand { display: inline-flex; align-items: center; gap: 12px; }

.site-nav { display: flex; align-items: center; gap: 34px; }
.site-nav a {
  font-size: 14px;
  font-weight: 500;
  color: var(--muted);
  transition: color 0.2s var(--ease);
}
.site-nav a:hover { color: var(--text); }
.site-nav a.btn { color: #0a0a0a; background: var(--text); }
.site-nav a.btn:hover { color: #0a0a0a; background: #fff; transform: translateY(-1px); }

.nav-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  width: 40px; height: 40px;
  padding: 9px;
  background: none; border: none; cursor: pointer;
}
.nav-toggle span {
  height: 2px; width: 100%;
  background: var(--text);
  border-radius: 2px;
  transition: transform 0.3s var(--ease), opacity 0.3s var(--ease);
}

/* ---------- Hero ---------- */
.hero {
  position: relative;
  padding: 190px 0 130px;
  overflow: hidden;
  background:
    radial-gradient(900px 500px at 70% -10%, rgba(207, 74, 60, 0.10), transparent 60%),
    radial-gradient(700px 600px at 10% 110%, rgba(255, 255, 255, 0.035), transparent 60%);
}
.hero-watermark {
  position: absolute;
  top: 50%; right: -4%;
  transform: translateY(-50%);
  font-family: var(--serif-jp);
  font-weight: 700;
  font-size: clamp(360px, 52vw, 760px);
  line-height: 1;
  color: #fff;
  opacity: 0.025;
  pointer-events: none;
  user-select: none;
}
.hero-inner { position: relative; max-width: 880px; }
.hero-title {
  font-size: clamp(2.5rem, 6vw, 4.6rem);
  font-weight: 700;
  letter-spacing: -0.03em;
  margin-bottom: 28px;
}
.hero-sub {
  font-size: clamp(1.05rem, 2vw, 1.3rem);
  color: var(--muted);
  max-width: 600px;
  margin-bottom: 40px;
}
.hero-cta { display: flex; flex-wrap: wrap; gap: 14px; }

/* ---------- Meaning strip ---------- */
.meaning { border-top: 1px solid var(--line-soft); border-bottom: 1px solid var(--line-soft); }
.meaning-inner {
  display: flex;
  align-items: center;
  gap: 36px;
  padding: 46px 28px;
}
.meaning-char {
  font-family: var(--serif-jp);
  font-weight: 700;
  font-size: clamp(64px, 9vw, 104px);
  color: var(--accent);
  line-height: 1;
  flex: none;
}
.meaning-text {
  font-size: clamp(1.05rem, 2.2vw, 1.45rem);
  color: var(--text);
  max-width: 740px;
  font-weight: 400;
}
.meaning-text strong { font-weight: 600; }

/* ---------- Sections ---------- */
.section { padding: 110px 0; }
.section-alt { background: var(--bg-elev); border-top: 1px solid var(--line-soft); border-bottom: 1px solid var(--line-soft); }
.section-head { max-width: 640px; margin-bottom: 56px; }
.section-head h2 { font-size: clamp(1.9rem, 4vw, 2.9rem); }

/* ---------- Service cards ---------- */
.cards {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 22px;
}
.card {
  position: relative;
  padding: 38px 32px 34px;
  background: var(--bg-elev);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  transition: transform 0.35s var(--ease), border-color 0.35s var(--ease), background 0.35s var(--ease);
}
.section-alt .card { background: var(--bg-elev-2); }
.card:hover {
  transform: translateY(-4px);
  border-color: rgba(255,255,255,0.18);
}
.card-index {
  font-family: var(--serif-jp);
  font-size: 13px;
  letter-spacing: 0.2em;
  color: var(--accent);
  font-weight: 700;
}
.card h3 { font-size: 1.35rem; margin: 18px 0 12px; }
.card p { color: var(--muted); font-size: 0.98rem; }

/* ---------- Steps ---------- */
.steps {
  list-style: none;
  margin: 0; padding: 0;
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 22px;
  counter-reset: step;
}
.step {
  padding: 34px 30px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: rgba(255,255,255,0.012);
}
.step-num {
  font-family: var(--serif-jp);
  font-weight: 700;
  font-size: 2rem;
  color: var(--faint);
}
.step h3 { font-size: 1.3rem; margin: 14px 0 10px; }
.step p { color: var(--muted); font-size: 0.97rem; }

/* ---------- About ---------- */
.about-grid {
  display: grid;
  grid-template-columns: 0.9fr 1.1fr;
  gap: 60px;
  align-items: start;
}
.about-head h2 { font-size: clamp(1.9rem, 4vw, 2.9rem); }
.about-body p { color: var(--muted); font-size: 1.08rem; margin-bottom: 20px; }
.about-body p:last-child { margin-bottom: 0; }
.about-signoff { color: var(--text) !important; font-weight: 500; }

/* ---------- Hayway ---------- */
.hayway-card {
  position: relative;
  display: grid;
  grid-template-columns: 1.4fr 0.6fr;
  gap: 30px;
  align-items: center;
  padding: 64px 56px;
  border-radius: 20px;
  overflow: hidden;
  background:
    radial-gradient(700px 400px at 100% 0%, rgba(207, 74, 60, 0.16), transparent 55%),
    var(--bg-elev);
  border: 1px solid var(--line);
}
.hayway-copy { max-width: 560px; }
.hayway-copy h2 { font-size: clamp(2.2rem, 5vw, 3.2rem); margin-bottom: 18px; }
.hayway-copy p { color: var(--muted); margin-bottom: 30px; }
.hayway-mark { display: flex; justify-content: center; }
.seal-lg {
  width: 132px; height: 132px;
  border-radius: 22px;
  font-size: 80px;
  box-shadow: 0 24px 60px -20px rgba(207, 74, 60, 0.8);
}

/* ---------- Contact ---------- */
.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 60px;
  align-items: start;
}
.contact-info h2 { font-size: clamp(1.9rem, 4vw, 2.9rem); margin-bottom: 18px; }
.contact-info p { color: var(--muted); margin-bottom: 28px; max-width: 420px; }
.contact-email {
  display: inline-block;
  font-size: 1.15rem;
  font-weight: 500;
  border-bottom: 1px solid var(--accent);
  padding-bottom: 3px;
  transition: color 0.2s var(--ease);
}
.contact-email:hover { color: var(--accent-hi); }

.contact-form { display: grid; gap: 18px; }
.field { display: grid; gap: 8px; }
.field label {
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--muted);
}
.field input, .field textarea {
  width: 100%;
  padding: 14px 16px;
  background: var(--bg);
  border: 1px solid var(--line);
  border-radius: 10px;
  color: var(--text);
  font-family: inherit;
  font-size: 1rem;
  transition: border-color 0.2s var(--ease), background 0.2s var(--ease);
  resize: vertical;
}
.section-alt .field input, .section-alt .field textarea { background: var(--bg); }
.field input:focus, .field textarea:focus {
  outline: none;
  border-color: var(--accent);
  background: rgba(207, 74, 60, 0.04);
}

/* ---------- Footer ---------- */
.site-footer { border-top: 1px solid var(--line); padding: 46px 0; }
.footer-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 22px;
}
.footer-brand { display: inline-flex; align-items: center; gap: 12px; }
.footer-nav { display: flex; flex-wrap: wrap; gap: 24px; }
.footer-nav a { font-size: 14px; color: var(--muted); transition: color 0.2s var(--ease); }
.footer-nav a:hover { color: var(--text); }
.footer-legal { width: 100%; font-size: 13px; color: var(--faint); margin-top: 6px; }

/* ---------- Reveal animation ---------- */
[data-reveal] {
  opacity: 0;
  transform: translateY(22px);
  transition: opacity 0.7s var(--ease), transform 0.7s var(--ease);
}
[data-reveal].is-visible { opacity: 1; transform: none; }

/* ---------- Responsive ---------- */
@media (max-width: 860px) {
  .nav-toggle { display: flex; }
  .site-nav {
    position: absolute;
    top: 74px; left: 0; right: 0;
    flex-direction: column;
    align-items: stretch;
    gap: 0;
    background: rgba(10, 10, 10, 0.96);
    backdrop-filter: blur(14px);
    -webkit-backdrop-filter: blur(14px);
    border-bottom: 1px solid var(--line);
    padding: 12px 28px 24px;
    clip-path: inset(0 0 100% 0);
    opacity: 0;
    pointer-events: none;
    transition: clip-path 0.35s var(--ease), opacity 0.25s var(--ease);
  }
  .site-nav.open { clip-path: inset(0 0 0 0); opacity: 1; pointer-events: auto; }
  .site-nav a { padding: 14px 0; border-bottom: 1px solid var(--line-soft); }
  .site-nav a.btn { margin-top: 14px; justify-content: center; border-bottom: none; }

  .cards, .steps { grid-template-columns: 1fr; }
  .about-grid, .contact-grid { grid-template-columns: 1fr; gap: 34px; }
  .hayway-card { grid-template-columns: 1fr; padding: 44px 32px; text-align: left; }
  .hayway-mark { justify-content: flex-start; }
  .meaning-inner { flex-direction: column; align-items: flex-start; gap: 20px; }
  .hero { padding: 150px 0 90px; }
  .section { padding: 80px 0; }
}

@media (max-width: 480px) {
  body { font-size: 16px; }
  .container { padding: 0 20px; }
  .btn { padding: 13px 22px; }
}

/* ---------- Reduced motion ---------- */
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { animation: none !important; transition: none !important; }
  [data-reveal] { opacity: 1; transform: none; }
}