/* 西条精工株式会社 — shared styles beyond Tailwind utilities（信頼感・技術力・精密さ） */

html {
  scroll-behavior: smooth;
}

body {
  font-family: "Noto Sans JP", "Hiragino Sans", sans-serif;
}

.font-heading {
  font-family: "Noto Sans JP", "Hiragino Sans", sans-serif;
}

section[id] {
  scroll-margin-top: 84px;
}

/* Scroll reveal */
.reveal {
  opacity: 0;
  transform: translateY(22px);
  transition: opacity 0.9s cubic-bezier(0.22, 1, 0.36, 1), transform 0.9s cubic-bezier(0.22, 1, 0.36, 1);
}
.reveal.is-visible {
  opacity: 1;
  transform: translateY(0);
}
.reveal-delay-1 { transition-delay: 0.1s; }
.reveal-delay-2 { transition-delay: 0.2s; }
.reveal-delay-3 { transition-delay: 0.3s; }
.reveal-delay-4 { transition-delay: 0.4s; }

#site-header {
  transition: background-color 0.3s ease, box-shadow 0.3s ease, padding 0.3s ease;
}

::-webkit-scrollbar {
  width: 10px;
}
::-webkit-scrollbar-track {
  background: #F5F7FA;
}
::-webkit-scrollbar-thumb {
  background: #94A3B8;
  border-radius: 9999px;
}
::-webkit-scrollbar-thumb:hover {
  background: #0EA5E9;
}

.card-lift {
  transition: transform 0.35s cubic-bezier(0.22, 1, 0.36, 1), box-shadow 0.35s cubic-bezier(0.22, 1, 0.36, 1);
}
.card-lift:hover {
  transform: translateY(-6px);
}

/* Section eyebrow with a short accent tick, evoking a dimension line */
.eyebrow::before {
  content: "";
  display: inline-block;
  width: 26px;
  height: 2px;
  background-color: #0EA5E9;
  margin-right: 10px;
  vertical-align: middle;
}

#mobile-nav {
  transition: max-height 0.4s ease, opacity 0.3s ease;
  max-height: 0;
  opacity: 0;
  overflow: hidden;
}
#mobile-nav.open {
  max-height: 700px;
  opacity: 1;
}

.spinner {
  border: 2px solid rgba(255, 255, 255, 0.4);
  border-top-color: #fff;
  border-radius: 9999px;
  width: 16px;
  height: 16px;
  animation: spin 0.7s linear infinite;
}
@keyframes spin {
  to { transform: rotate(360deg); }
}

.stat-number {
  font-variant-numeric: tabular-nums;
}

/* Blueprint-style grid texture — precision / technical drawing motif */
.blueprint-grid {
  background-image:
    linear-gradient(rgba(14, 165, 233, 0.16) 1px, transparent 1px),
    linear-gradient(90deg, rgba(14, 165, 233, 0.16) 1px, transparent 1px);
  background-size: 34px 34px;
}
.blueprint-grid-dark {
  background-image:
    linear-gradient(rgba(255, 255, 255, 0.07) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, 0.07) 1px, transparent 1px);
  background-size: 34px 34px;
}

/* Dimension line — a thin measurement-style divider with end ticks */
.dim-line {
  position: relative;
  height: 1px;
  background: rgba(30, 41, 59, 0.25);
}
.dim-line::before,
.dim-line::after {
  content: "";
  position: absolute;
  top: -4px;
  width: 1px;
  height: 9px;
  background: rgba(30, 41, 59, 0.4);
}
.dim-line::before { left: 0; }
.dim-line::after { right: 0; }
.dim-line-light::before,
.dim-line-light::after {
  background: rgba(255, 255, 255, 0.4);
}
.dim-line-light {
  background: rgba(255, 255, 255, 0.25);
}

/* Corner tick frame — camera-crop-mark motif applied to photo blocks */
.tick-corners {
  position: relative;
}
.tick-corners::before,
.tick-corners::after {
  content: "";
  position: absolute;
  width: 22px;
  height: 22px;
  pointer-events: none;
  z-index: 10;
}
.tick-corners::before {
  top: -9px;
  left: -9px;
  border-top: 3px solid #0EA5E9;
  border-left: 3px solid #0EA5E9;
}
.tick-corners::after {
  bottom: -9px;
  right: -9px;
  border-bottom: 3px solid #0EA5E9;
  border-right: 3px solid #0EA5E9;
}

/* Soft accent glow — used sparingly instead of playful blobs */
.glow {
  position: absolute;
  border-radius: 9999px;
  filter: blur(70px);
  z-index: 0;
}

/* Diagonal hazard-stripe texture — subtle industrial accent for CTA bands */
.stripe-band {
  background-image: repeating-linear-gradient(45deg, rgba(255, 255, 255, 0.07) 0 10px, transparent 10px 20px);
}

/* Numbered index badge for process / spec lists */
.idx-badge {
  font-variant-numeric: tabular-nums;
  letter-spacing: 0.02em;
}