/* 瀬戸内メタルワークス株式会社 — shared styles beyond Tailwind utilities (産業的・硬派・幾何学的) */

html {
  scroll-behavior: smooth;
}

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

.font-heading {
  font-family: "Zen Kaku Gothic New", "Noto Sans JP", 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; }

/* Hero background photo */
.hero-bg {
  background-size: cover;
  background-position: center;
}

#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: #F4F4F5;
}
::-webkit-scrollbar-thumb {
  background: #A1A1AA;
  border-radius: 2px;
}
::-webkit-scrollbar-thumb:hover {
  background: #F59E0B;
}

.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 industrial rule */
.eyebrow::before {
  content: "";
  display: inline-block;
  width: 34px;
  height: 3px;
  background-color: #F59E0B;
  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;
}

/* ---------- Industrial cut-corner geometry ---------- */
/* Cards, photo frames: corners sheared like a laser-cut steel plate */
.clip-card {
  clip-path: polygon(22px 0, 100% 0, 100% calc(100% - 22px), calc(100% - 22px) 100%, 0 100%, 0 22px);
}
.clip-card-sm {
  clip-path: polygon(12px 0, 100% 0, 100% calc(100% - 12px), calc(100% - 12px) 100%, 0 100%, 0 12px);
}
.clip-btn {
  clip-path: polygon(12px 0, 100% 0, 100% calc(100% - 12px), calc(100% - 12px) 100%, 0 100%, 0 12px);
}
.clip-badge {
  clip-path: polygon(8px 0, 100% 0, 100% calc(100% - 8px), calc(100% - 8px) 100%, 0 100%, 0 8px);
}

/* Hazard-stripe accent bar */
.hazard-stripes {
  background-image: repeating-linear-gradient(135deg, #F59E0B 0 16px, #18181B 16px 32px);
}

/* Subtle spark/dot texture for dark bands */
.spark-dots {
  background-image: radial-gradient(circle, rgba(245, 158, 11, 0.55) 1.5px, transparent 1.5px);
  background-size: 26px 26px;
}

/* Fine diagonal steel-brush texture for dark sections */
.brushed-steel {
  background-image: repeating-linear-gradient(115deg, rgba(255, 255, 255, 0.035) 0px, rgba(255, 255, 255, 0.035) 1px, transparent 1px, transparent 6px);
}

/* Skewed divider bands used between sections for a hard angled seam */
.seam {
  transform: skewY(-1.6deg);
}
.seam-inner {
  transform: skewY(1.6deg);
}