/* ============================================================
   株式会社エンドロール — コーポレートサイト
   グレースケール / シネマ（エンドロール）モチーフ
   ============================================================ */

:root {
  --ink:      #0a0a0a;
  --charcoal: #161616;
  --graphite: #2c2c2c;
  --gray:     #6e6e6e;
  --silver:   #a6a6a6;
  --mist:     #d9d9d9;
  --paper:    #f2f2f2;
  --white:    #ffffff;

  --serif: "Noto Serif JP", "Hiragino Mincho ProN", "Yu Mincho", serif;
  --sans:  "Noto Sans JP", "Hiragino Sans", "Yu Gothic", sans-serif;

  --maxw: 1180px;
  --gutter: clamp(20px, 5vw, 64px);
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  margin: 0;
  font-family: var(--sans);
  color: var(--ink);
  background: var(--white);
  line-height: 1.85;
  font-feature-settings: "palt";
  -webkit-font-smoothing: antialiased;
  letter-spacing: .02em;
}

a { color: inherit; text-decoration: none; }
img { max-width: 100%; display: block; }

.wrap { max-width: var(--maxw); margin: 0 auto; padding: 0 var(--gutter); }

/* ---------- typography ---------- */
h1,h2,h3,h4 { font-family: var(--serif); font-weight: 600; line-height: 1.35; margin: 0; }

.eyebrow {
  font-family: var(--sans);
  font-size: .72rem;
  letter-spacing: .42em;
  text-transform: uppercase;
  color: var(--gray);
  margin: 0 0 1.4em;
  display: inline-block;
}

.lead { font-size: clamp(1rem, 2.4vw, 1.18rem); color: var(--graphite); }

/* ============================================================
   HEADER / NAV
   ============================================================ */
.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  background: rgba(255,255,255,.86);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--mist);
}
.nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 72px;
  max-width: var(--maxw);
  margin: 0 auto;
  padding: 0 var(--gutter);
}
.brand {
  font-family: var(--serif);
  font-size: 1.18rem;
  letter-spacing: .14em;
  font-weight: 600;
}
.brand small { display: block; font-family: var(--sans); font-size: .58rem; letter-spacing: .34em; color: var(--gray); margin-top: 2px; }
.nav-links { display: flex; gap: clamp(18px, 3vw, 40px); align-items: center; }
.nav-links a {
  font-size: .82rem;
  letter-spacing: .14em;
  color: var(--graphite);
  position: relative;
  padding: 4px 0;
}
.nav-links a::after {
  content: "";
  position: absolute; left: 0; bottom: -2px;
  width: 0; height: 1px; background: var(--ink);
  transition: width .3s ease;
}
.nav-links a:hover::after, .nav-links a.active::after { width: 100%; }
.nav-links a.active { color: var(--ink); }

.nav-toggle { display: none; background: none; border: 0; cursor: pointer; padding: 8px; }
.nav-toggle span { display: block; width: 24px; height: 1.5px; background: var(--ink); margin: 5px 0; transition: .3s; }

@media (max-width: 820px) {
  .nav-toggle { display: block; }
  .nav-links {
    position: absolute; top: 72px; left: 0; right: 0;
    flex-direction: column; gap: 0;
    background: var(--white);
    border-bottom: 1px solid var(--mist);
    max-height: 0; overflow: hidden; transition: max-height .35s ease;
  }
  .nav-links.open { max-height: 360px; }
  .nav-links a { padding: 16px var(--gutter); width: 100%; border-top: 1px solid var(--paper); }
  .nav-links a::after { display: none; }
}

/* ============================================================
   HERO (cinematic letterbox)
   ============================================================ */
.hero {
  background: var(--ink);
  color: var(--white);
  position: relative;
  overflow: hidden;
}
.hero::before, .hero::after {
  content: ""; position: absolute; left: 0; right: 0; height: 46px;
  background: #000; z-index: 2;
}
.hero::before { top: 0; }
.hero::after  { bottom: 0; }
.hero-inner {
  max-width: var(--maxw); margin: 0 auto; padding: clamp(110px, 18vh, 200px) var(--gutter);
  position: relative; z-index: 1;
}
.hero .eyebrow { color: var(--silver); }
.hero h1 {
  font-size: clamp(2rem, 6.4vw, 4.4rem);
  letter-spacing: .04em;
  line-height: 1.45;
  margin: 0 0 .7em;
}
.hero h1 .thin { color: var(--silver); }
.hero p { color: var(--mist); max-width: 46ch; font-size: clamp(.95rem, 2vw, 1.1rem); }
.hero-meta {
  margin-top: 3rem; display: flex; gap: 2.4rem; flex-wrap: wrap;
  font-size: .78rem; letter-spacing: .12em; color: var(--silver);
  border-top: 1px solid #2a2a2a; padding-top: 1.6rem;
}

/* page banner (sub pages) */
.banner {
  background: var(--ink); color: var(--white);
  padding: clamp(80px, 14vh, 150px) 0 clamp(50px, 9vh, 90px);
}
.banner .eyebrow { color: var(--silver); }
.banner h1 { font-size: clamp(1.9rem, 5vw, 3.2rem); letter-spacing: .05em; }
.banner p { color: var(--mist); margin-top: 1.2rem; max-width: 60ch; }

/* ============================================================
   SECTIONS
   ============================================================ */
.section { padding: clamp(64px, 11vh, 130px) 0; }
.section--paper { background: var(--paper); }
.section-head { margin-bottom: clamp(36px, 6vh, 70px); }
.section-head h2 { font-size: clamp(1.5rem, 3.6vw, 2.4rem); letter-spacing: .04em; }
.section-head p { color: var(--gray); margin-top: 1rem; max-width: 64ch; }

/* index intro */
.intro-grid { display: grid; grid-template-columns: 1.1fr 1fr; gap: clamp(30px, 6vw, 90px); align-items: center; }
.intro-grid p + p { margin-top: 1.2em; }
@media (max-width: 820px){ .intro-grid { grid-template-columns: 1fr; } }

/* service / link cards on index */
.cards { display: grid; grid-template-columns: repeat(3, 1fr); gap: 1px; background: var(--mist); border: 1px solid var(--mist); }
.cards .card {
  background: var(--white); padding: clamp(26px, 3vw, 40px);
  min-height: 220px; display: flex; flex-direction: column; justify-content: space-between;
  transition: background .3s ease, color .3s ease;
}
.cards .card:hover { background: var(--ink); color: var(--white); }
.cards .card:hover .card-num, .cards .card:hover .card-arrow { color: var(--silver); }
.card-num { font-family: var(--serif); font-size: .9rem; letter-spacing: .2em; color: var(--silver); }
.card h3 { font-size: 1.18rem; margin: 1.4rem 0 .6rem; }
.card p { font-size: .85rem; color: inherit; opacity: .8; margin: 0; line-height: 1.7; }
.card-arrow { margin-top: 1.6rem; font-size: .8rem; letter-spacing: .2em; color: var(--gray); }
@media (max-width: 820px){ .cards { grid-template-columns: 1fr; } }

/* ============================================================
   SERVICES PAGE — alternating rows
   ============================================================ */
.svc {
  display: grid; grid-template-columns: 88px 1fr; gap: clamp(20px, 4vw, 54px);
  padding: clamp(40px, 6vh, 66px) 0; border-top: 1px solid var(--mist);
}
.svc:last-child { border-bottom: 1px solid var(--mist); }
.svc-no { font-family: var(--serif); font-size: clamp(1.6rem, 4vw, 2.6rem); color: var(--silver); line-height: 1; }
.svc-body h3 { font-size: clamp(1.25rem, 2.8vw, 1.7rem); margin-bottom: 1rem; }
.svc-body p { color: var(--graphite); margin: 0; }
.svc-tags { margin-top: 1.4rem; display: flex; flex-wrap: wrap; gap: .5rem; }
.tag {
  font-size: .72rem; letter-spacing: .08em; color: var(--graphite);
  border: 1px solid var(--mist); border-radius: 999px; padding: .3em 1em;
}
.badge-new {
  display: inline-block; font-family: var(--sans); font-size: .62rem; letter-spacing: .2em;
  background: var(--ink); color: var(--white); padding: .35em .8em; margin-left: .8em; vertical-align: middle;
}
@media (max-width: 640px){ .svc { grid-template-columns: 1fr; gap: 14px; } .svc-no { font-size: 1.6rem; } }

/* media coverage chips */
.media-grid { display: flex; flex-wrap: wrap; gap: .6rem; margin-top: 2rem; }
.media-grid .chip {
  font-size: .78rem; letter-spacing: .06em; padding: .55em 1.2em;
  background: var(--white); border: 1px solid var(--mist); color: var(--graphite);
}

/* ============================================================
   WORKS PAGE
   ============================================================ */
.work-cat { margin-top: clamp(50px, 8vh, 90px); }
.work-cat:first-of-type { margin-top: 0; }
.work-cat > h2 {
  font-size: clamp(1.2rem, 3vw, 1.7rem); letter-spacing: .04em;
  padding-bottom: 1rem; border-bottom: 2px solid var(--ink); margin-bottom: 2.4rem;
}

.case { border-top: 1px solid var(--mist); padding: clamp(30px,5vh,48px) 0; }
.case:first-child { border-top: 0; }
.case-client { font-size: .76rem; letter-spacing: .14em; color: var(--gray); margin-bottom: .7rem; }
.case h3 { font-size: clamp(1.15rem, 2.6vw, 1.55rem); margin-bottom: 1rem; }
.case p { color: var(--graphite); margin: 0 0 1.2rem; }
.case-roles { display: flex; flex-wrap: wrap; gap: .4rem; }
.case-roles .tag { color: var(--gray); }

/* compact grid of partner works */
.work-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 1px; background: var(--mist); border: 1px solid var(--mist); }
.work-grid .item { background: var(--white); padding: clamp(22px, 3vw, 32px); }
.work-grid .item .c { font-size: .72rem; letter-spacing: .12em; color: var(--gray); }
.work-grid .item h4 { font-family: var(--serif); font-size: 1.02rem; margin: .5rem 0 .7rem; }
.work-grid .item .r { font-size: .78rem; color: var(--graphite); line-height: 1.7; }
@media (max-width: 700px){ .work-grid { grid-template-columns: 1fr; } }

/* ============================================================
   ABOUT PAGE
   ============================================================ */
.process { counter-reset: step; display: grid; gap: 1px; background: var(--mist); border: 1px solid var(--mist); }
.process .step { background: var(--white); padding: clamp(24px,3vw,36px); display: grid; grid-template-columns: 64px 1fr; gap: 1.6rem; align-items: start; }
.process .step .n { font-family: var(--serif); font-size: 1.4rem; color: var(--silver); }
.process .step h4 { font-size: 1.08rem; margin-bottom: .5rem; }
.process .step p { margin: 0; font-size: .9rem; color: var(--graphite); }
@media (max-width: 560px){ .process .step { grid-template-columns: 1fr; gap: .6rem; } }

/* message */
.message { background: var(--ink); color: var(--white); }
.message .wrap { padding-top: clamp(64px,11vh,120px); padding-bottom: clamp(64px,11vh,120px); }
.message .eyebrow { color: var(--silver); }
.message h2 { font-size: clamp(1.5rem,3.4vw,2.2rem); margin-bottom: 1.8rem; line-height: 1.6; }
.message p { color: var(--mist); max-width: 70ch; }
.message p + p { margin-top: 1.3em; }
.message .sign { margin-top: 2.6rem; font-family: var(--serif); letter-spacing: .1em; }
.message .sign small { display:block; font-family: var(--sans); font-size:.74rem; letter-spacing:.16em; color: var(--silver); margin-bottom:.5rem; }

/* company table */
.spec { width: 100%; border-collapse: collapse; }
.spec th, .spec td { text-align: left; padding: 1.1rem 0; border-bottom: 1px solid var(--mist); vertical-align: top; font-size: .92rem; }
.spec th { width: 200px; font-family: var(--sans); font-weight: 600; color: var(--graphite); letter-spacing: .06em; }
.spec td { color: var(--graphite); }
.spec td .ph { color: var(--silver); }
@media (max-width: 560px){ .spec th { width: 120px; } }

/* ============================================================
   CONTACT
   ============================================================ */
.contact-grid { display: grid; grid-template-columns: 1fr 1.3fr; gap: clamp(34px, 6vw, 80px); }
@media (max-width: 820px){ .contact-grid { grid-template-columns: 1fr; } }
.contact-info dt { font-size: .72rem; letter-spacing: .16em; color: var(--gray); margin-top: 1.6rem; }
.contact-info dt:first-child { margin-top: 0; }
.contact-info dd { margin: .4rem 0 0; font-size: 1rem; color: var(--ink); }
.contact-info dd .ph { color: var(--silver); }

.form .field { margin-bottom: 1.5rem; }
.form label { display: block; font-size: .78rem; letter-spacing: .1em; color: var(--graphite); margin-bottom: .6rem; }
.form input, .form textarea, .form select {
  width: 100%; padding: .9rem 1rem; font-family: var(--sans); font-size: .95rem;
  border: 1px solid var(--mist); background: var(--white); color: var(--ink); border-radius: 0;
}
.form input:focus, .form textarea:focus, .form select:focus { outline: 2px solid var(--ink); outline-offset: -2px; }
.form textarea { min-height: 150px; resize: vertical; }
.btn {
  display: inline-block; border: 0; cursor: pointer;
  background: var(--ink); color: var(--white);
  font-family: var(--sans); font-size: .82rem; letter-spacing: .2em;
  padding: 1.1rem 2.6rem; transition: background .25s ease;
}
.btn:hover { background: var(--graphite); }
.form-note { font-size: .76rem; color: var(--gray); margin-top: 1rem; }

/* ============================================================
   CTA strip + FOOTER
   ============================================================ */
.cta {
  background: var(--paper); text-align: center;
  padding: clamp(60px, 10vh, 110px) var(--gutter);
}
.cta h2 { font-size: clamp(1.4rem, 3.4vw, 2.2rem); margin-bottom: 1.6rem; }
.cta .btn { background: var(--ink); }

.site-footer { background: var(--ink); color: var(--silver); padding: clamp(48px,8vh,80px) 0 2.4rem; }
.footer-top { display: flex; justify-content: space-between; flex-wrap: wrap; gap: 2rem; padding-bottom: 2.4rem; border-bottom: 1px solid #262626; }
.footer-brand .brand { color: var(--white); }
.footer-brand p { font-size: .8rem; max-width: 34ch; margin: 1.2rem 0 0; }
.footer-nav { display: flex; gap: clamp(24px, 5vw, 60px); flex-wrap: wrap; }
.footer-nav a { font-size: .82rem; letter-spacing: .1em; color: var(--mist); }
.footer-nav a:hover { color: var(--white); }
.footer-bottom { padding-top: 2rem; font-size: .72rem; letter-spacing: .1em; color: var(--gray); display:flex; justify-content: space-between; flex-wrap: wrap; gap: .6rem; }
.footer-tag { font-family: var(--serif); color: var(--silver); letter-spacing: .14em; }

/* ============================================================
   motion
   ============================================================ */
.reveal { opacity: 0; transform: translateY(18px); transition: opacity .8s ease, transform .8s ease; }
.reveal.in { opacity: 1; transform: none; }
@media (prefers-reduced-motion: reduce){
  .reveal { opacity: 1; transform: none; transition: none; }
  html { scroll-behavior: auto; }
}