/* DELTA WORKS site stylesheet */

:root {
  --accent: #ea6362;
  --accent-dark: #c95554;
  --ink: #222325;
  --ink-soft: #4a4a4a;
  --muted: #767676;
  --bg: #ffffff;
  --bg-soft: #f7f6f5;
  --border: #ececec;
  --max: 1120px;
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  margin: 0;
  font-family: "Noto Sans JP", "Hiragino Kaku Gothic ProN", "Yu Gothic", "Meiryo", sans-serif;
  color: var(--ink);
  background: var(--bg);
  line-height: 1.9;
  font-size: 16px;
}

img { max-width: 100%; display: block; }

a { color: inherit; text-decoration: none; }

h1, h2, h3, h4 { font-weight: 700; letter-spacing: .02em; margin: 0; }

.container {
  max-width: var(--max);
  margin: 0 auto;
  padding: 0 24px;
}

/* Header */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: #ffffff;
  border-bottom: 1px solid var(--border);
}

.site-header .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 76px;
}

.logo {
  font-family: "Roboto Condensed", sans-serif;
  font-weight: 700;
  font-size: 22px;
  letter-spacing: .08em;
  display: flex;
  flex-direction: column;
  line-height: 1.1;
}
.logo span { font-size: 11px; letter-spacing: .3em; color: var(--accent); font-weight: 400; }

.nav-toggle {
  display: none;
  background: none;
  border: none;
  cursor: pointer;
  padding: 8px;
}
.nav-toggle span {
  display: block;
  width: 24px;
  height: 2px;
  background: var(--ink);
  margin: 5px 0;
}

.main-nav ul {
  list-style: none;
  display: flex;
  gap: 36px;
  margin: 0;
  padding: 0;
}
.main-nav a {
  font-size: 14px;
  letter-spacing: .06em;
  padding: 8px 0;
  border-bottom: 2px solid transparent;
  transition: border-color .2s, color .2s;
}
.main-nav a:hover,
.main-nav a.active { border-color: var(--accent); color: var(--accent); }

/* Hero */
.hero {
  padding: 140px 0 110px;
  text-align: center;
  color: #fff;
  background: linear-gradient(155deg, #23262b 0%, #34363c 45%, var(--accent-dark) 130%);
  position: relative;
  overflow: hidden;
}
.hero:before {
  content: "";
  position: absolute;
  inset: 0;
  background-image:
    radial-gradient(circle at 15% 25%, rgba(234,99,98,.35), transparent 45%),
    radial-gradient(circle at 85% 75%, rgba(255,255,255,.08), transparent 40%);
  pointer-events: none;
}
.hero .eyebrow {
  font-size: 14px;
  letter-spacing: .5em;
  color: #f5c2c2;
  margin-bottom: 18px;
  position: relative;
}
.hero h1 {
  font-family: "Roboto Condensed", sans-serif;
  font-size: clamp(56px, 11vw, 130px);
  line-height: 1;
  text-transform: uppercase;
  text-shadow: 0 0 24px rgba(255,255,255,.25);
  position: relative;
}
.hero p.lead {
  margin: 26px auto 0;
  max-width: 640px;
  font-size: 19px;
  position: relative;
}
.hero .btn { margin-top: 40px; position: relative; }

.btn {
  display: inline-block;
  background: var(--accent);
  color: #fff;
  padding: 14px 46px;
  border-radius: 2px;
  font-size: 14px;
  letter-spacing: .1em;
  text-transform: uppercase;
  transition: background .2s;
}
.btn:hover { background: var(--accent-dark); }
.btn.outline {
  background: none;
  border: 1px solid var(--accent);
  color: var(--accent);
}
.btn.outline:hover { background: var(--accent); color: #fff; }

/* Section generic */
section { padding: 96px 0; }
section.soft { background: var(--bg-soft); }

.section-head { text-align: center; margin-bottom: 56px; }
.section-head h2 {
  font-family: "Roboto Condensed", sans-serif;
  font-size: 42px;
  text-transform: uppercase;
  color: var(--ink);
}
.section-head .rule {
  width: 48px;
  height: 4px;
  background: var(--accent);
  margin: 20px auto 0;
}
.section-head p { color: var(--muted); margin-top: 18px; }

/* Services grid */
.grid-4 {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
}
.card {
  background: #fff;
  border: 1px solid var(--border);
  border-radius: 4px;
  padding: 36px 26px;
  text-align: left;
}
.card h3 { font-size: 20px; color: var(--ink-soft); margin-bottom: 14px; }
.card p { color: var(--muted); font-size: 15px; margin: 0 0 18px; }
.card a { color: var(--accent); font-size: 14px; font-weight: 700; }
.card a:hover { color: var(--accent-dark); }

.service-note {
  margin-top: 40px;
  text-align: center;
  color: var(--muted);
  font-size: 15px;
}
.service-note strong { color: var(--ink); }

/* Philosophy blocks */
.philosophy {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 40px 60px;
}
.philosophy .item h3 {
  font-size: 19px;
  margin-bottom: 12px;
  padding-left: 16px;
  border-left: 4px solid var(--accent);
}
.philosophy .item p { color: var(--ink-soft); }

.lead-copy p { color: var(--ink-soft); margin: 0 0 20px; }
.lead-copy a { color: var(--accent); border-bottom: 1px solid currentColor; }

/* Members */
.grid-3 {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 28px;
}
.member-card {
  background: #fff;
  border: 1px solid var(--border);
  border-radius: 4px;
  overflow: hidden;
  text-align: center;
}
.member-card .photo {
  aspect-ratio: 1 / 1;
  overflow: hidden;
  background: var(--bg-soft);
}
.member-card .photo img { width: 100%; height: 100%; object-fit: cover; }
.member-card .body { padding: 26px 22px 30px; }
.member-card .name { font-size: 18px; font-weight: 700; }
.member-card .name .en { display: block; font-size: 12px; letter-spacing: .1em; color: var(--muted); margin-top: 4px; font-weight: 400; }
.member-card .role {
  display: inline-block;
  margin: 12px 0 16px;
  font-size: 12px;
  letter-spacing: .1em;
  color: var(--accent);
  border: 1px solid var(--accent);
  border-radius: 20px;
  padding: 3px 14px;
}
.member-card .quote { color: var(--muted); font-size: 14.5px; text-align: left; }
.member-card .tagline {
  margin-top: 16px;
  font-size: 13px;
  color: var(--ink-soft);
  font-weight: 700;
}

/* Creation is life band */
.creation-band {
  background: linear-gradient(155deg, #2c2f34, var(--accent-dark));
  color: #fff;
  text-align: center;
}
.creation-band h2 {
  font-family: "Roboto Condensed", sans-serif;
  font-size: clamp(34px, 6vw, 60px);
  text-transform: uppercase;
}
.creation-band h3 { margin: 18px 0 34px; font-size: 20px; font-weight: 400; letter-spacing: .05em; }

/* Contact / footer */
.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 40px;
  align-items: start;
}
.contact-grid address { font-style: normal; color: var(--ink-soft); }
.contact-grid .label { font-size: 12px; letter-spacing: .1em; color: var(--muted); margin-bottom: 6px; }
.contact-grid .line { margin-bottom: 22px; }
.contact-grid iframe { border: 0; width: 100%; height: 280px; border-radius: 4px; }

footer {
  background: var(--ink);
  color: #cfcfcf;
  padding: 50px 0 28px;
  font-size: 13px;
}
footer .container {
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 20px;
}
.social-icons { display: flex; gap: 18px; list-style: none; padding: 0; margin: 0; }
.social-icons a {
  width: 36px; height: 36px;
  border: 1px solid #4a4a4a;
  border-radius: 50%;
  display: flex; align-items: center; justify-content: center;
  transition: border-color .2s, color .2s;
}
.social-icons a:hover { border-color: var(--accent); color: var(--accent); }
.social-icons svg { width: 16px; height: 16px; fill: currentColor; }

.notice-banner {
  background: #fff4f0;
  border-bottom: 1px solid #f1c9c9;
  color: #9a4a4a;
  font-size: 13.5px;
  text-align: center;
  padding: 10px 16px;
}

/* Page header (about / member) */
.page-hero {
  padding: 90px 0 60px;
  text-align: center;
  background: var(--bg-soft);
  border-bottom: 1px solid var(--border);
}
.page-hero .eyebrow { color: var(--accent); letter-spacing: .3em; font-size: 13px; margin-bottom: 12px; }
.page-hero h1 {
  font-family: "Roboto Condensed", sans-serif;
  font-size: clamp(40px, 7vw, 72px);
  text-transform: uppercase;
}

.founding-note {
  background: var(--bg-soft);
  border: 1px solid var(--border);
  border-radius: 4px;
  padding: 30px 34px;
  margin-top: 40px;
  color: var(--ink-soft);
  font-size: 15px;
}
.founding-note strong { color: var(--ink); }

.services-list {
  margin-top: 20px;
  color: var(--ink-soft);
}
.services-list span {
  display: inline-block;
  background: #fff;
  border: 1px solid var(--border);
  border-radius: 20px;
  padding: 6px 16px;
  margin: 4px 6px 4px 0;
  font-size: 13.5px;
}

@media (max-width: 900px) {
  .grid-4 { grid-template-columns: repeat(2, 1fr); }
  .grid-3 { grid-template-columns: 1fr; }
  .philosophy { grid-template-columns: 1fr; }
  .contact-grid { grid-template-columns: 1fr; }
}

@media (max-width: 720px) {
  .nav-toggle { display: block; }
  .main-nav {
    position: fixed;
    inset: 76px 0 0 0;
    background: #fff;
    transform: translateX(100%);
    transition: transform .25s ease;
    padding: 20px 0;
    border-top: 1px solid var(--border);
  }
  .main-nav.open { transform: translateX(0); }
  .main-nav ul { flex-direction: column; gap: 0; }
  .main-nav a { display: block; padding: 16px 24px; border-bottom: 1px solid var(--border); }
  .grid-4 { grid-template-columns: 1fr; }
  .hero { padding: 110px 0 80px; }
  section { padding: 64px 0; }
}