/* ============================================================
   portfolio — クラリス開発相談所（Web/LP 制作実績）
   中立・上品な明るいトーン。カラフルな作品を主役にする。
   ============================================================ */

:root {
  --paper:   #f5f3ee;
  --surface: #fffdf9;
  --ink:     #18160f;
  --muted:   #6a655b;
  --line:    #e4ddd0;
  --accent:  #2f49d4;
  --accent-d:#2438ac;

  --display: "Schibsted Grotesk", "Helvetica Neue", sans-serif;
  --jp:      "Zen Kaku Gothic New", "Hiragino Sans", system-ui, sans-serif;

  --r:    18px;
  --r-lg: 22px;
  --shadow:    0 26px 60px -32px rgba(24, 22, 15, .4);
  --shadow-sm: 0 10px 28px -18px rgba(24, 22, 15, .4);
  --wrap: 1160px;
  --pad:  clamp(20px, 5vw, 52px);
  --sec:  clamp(74px, 11vw, 140px);
  --ease: cubic-bezier(.22, 1, .36, 1);
}

*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }
body {
  font-family: var(--jp); color: var(--ink); background: var(--paper);
  line-height: 1.85; font-size: clamp(15px, 1.05vw, 16.5px); letter-spacing: .01em;
  overflow-x: hidden; -webkit-font-smoothing: antialiased;
}
a { color: inherit; text-decoration: none; }
ul, ol { list-style: none; }
button { font: inherit; cursor: pointer; border: none; background: none; color: inherit; }
img { display: block; max-width: 100%; }
:focus-visible { outline: 2px solid var(--accent); outline-offset: 3px; border-radius: 6px; }
.wrap { width: 100%; max-width: var(--wrap); margin-inline: auto; padding-inline: var(--pad); }
.section { padding-block: var(--sec); }
.section--alt { background: var(--surface); border-block: 1px solid var(--line); }

.kicker { font-family: var(--display); font-weight: 600; letter-spacing: .16em; text-transform: uppercase; font-size: .8rem; color: var(--accent); }
.head { max-width: 680px; margin: 0 auto clamp(40px, 6vw, 66px); text-align: center; }
.head__note { color: var(--muted); margin-top: .8rem; }
.h2 { font-family: var(--jp); font-weight: 900; font-size: clamp(1.8rem, 4.2vw, 2.9rem); line-height: 1.32; margin-top: .35em; }
.accent { color: var(--accent); }

/* ── ボタン ─────────────────────────────────── */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: .5em;
  font-family: var(--jp); font-weight: 700; font-size: .96rem;
  padding: .9em 1.7em; border-radius: 999px;
  background: var(--accent); color: #fff; border: 1.5px solid var(--accent);
  box-shadow: var(--shadow-sm);
  transition: transform .25s var(--ease), background-color .25s, box-shadow .3s var(--ease);
}
.btn:hover { transform: translateY(-3px); background: var(--accent-d); border-color: var(--accent-d); box-shadow: 0 16px 32px -16px var(--accent); }
.btn--ghost { background: transparent; color: var(--ink); border-color: var(--line); box-shadow: none; }
.btn--ghost:hover { background: var(--ink); color: var(--paper); border-color: var(--ink); }
.btn--invert { background: var(--paper); color: var(--ink); border-color: var(--paper); }
.btn--invert:hover { background: #fff; color: var(--ink); border-color: #fff; }
.btn--sm { padding: .6em 1.2em; font-size: .88rem; }
.btn--lg { padding: 1.05em 2.1em; font-size: 1rem; }

/* ── ヘッダー ───────────────────────────────── */
.hdr { position: sticky; top: 0; z-index: 60; background: color-mix(in srgb, var(--paper) 84%, transparent); backdrop-filter: blur(10px); border-bottom: 1px solid transparent; transition: border-color .3s; }
.hdr.is-scrolled { border-bottom-color: var(--line); }
.hdr__inner { display: flex; align-items: center; gap: 1.3rem; min-height: 74px; }
.brand { display: inline-flex; align-items: center; gap: .55em; font-weight: 700; }
.brand__mark { width: 36px; height: 36px; border-radius: 50%; flex: none; object-fit: cover; box-shadow: 0 2px 8px -3px rgba(24, 22, 15, .4); }
.brand__name { font-family: var(--jp); font-weight: 700; font-size: 1.08rem; }
.nav { display: flex; gap: 1.5rem; margin-left: auto; font-weight: 500; font-size: .95rem; }
.nav a { color: var(--muted); transition: color .2s; }
.nav a:hover { color: var(--accent); }
.burger { display: none; flex-direction: column; gap: 5px; margin-left: auto; padding: 8px; }
.burger span { width: 24px; height: 2px; background: var(--ink); border-radius: 2px; transition: transform .3s var(--ease), opacity .2s; }
.burger[aria-expanded="true"] span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.burger[aria-expanded="true"] span:nth-child(2) { opacity: 0; }
.burger[aria-expanded="true"] span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }
.drawer { display: none; flex-direction: column; gap: .3rem; padding: 1rem var(--pad) 1.5rem; border-top: 1px solid var(--line); background: var(--surface); }
.drawer a { padding: .8rem .2rem; font-weight: 600; border-bottom: 1px solid var(--line); }
.drawer a.btn { border: 1.5px solid var(--accent); margin-top: .8rem; }

/* ── HERO ───────────────────────────────────── */
.hero { padding-block: clamp(56px, 9vw, 110px) var(--sec); }
.hero__inner { max-width: 800px; }
.hero__h { font-family: var(--jp); font-weight: 900; font-size: clamp(2.6rem, 7vw, 5rem); line-height: 1.18; margin-block: .35em .5em; letter-spacing: .005em; }
.hero__lead { font-size: clamp(1.02rem, 1.7vw, 1.22rem); color: var(--muted); max-width: 56ch; }
.hero__lead b { color: var(--ink); font-weight: 700; }
.hero__cta { display: flex; flex-wrap: wrap; gap: 1rem; margin-top: 2.2rem; }
.hero__tags { display: flex; flex-wrap: wrap; gap: .6rem; margin-top: 2.2rem; }
.hero__tags li { background: var(--surface); border: 1px solid var(--line); border-radius: 999px; padding: .45em 1em; font-size: .86rem; font-weight: 500; }
.hero__tags li::before { content: "✓ "; color: var(--accent); font-weight: 700; }

/* ── WORKS ──────────────────────────────────── */
.works { display: grid; grid-template-columns: repeat(2, 1fr); gap: clamp(1.4rem, 3vw, 2.4rem); }
.work { display: block; }
.work__shot { display: block; border-radius: var(--r-lg); overflow: hidden; border: 1px solid var(--line); box-shadow: var(--shadow-sm); aspect-ratio: 1280 / 800; background: var(--surface); }
.work__shot img { width: 100%; height: 100%; object-fit: cover; object-position: top center; transition: transform .6s var(--ease); }
.work:hover .work__shot { box-shadow: var(--shadow); }
.work:hover .work__shot img { transform: scale(1.04); }
.work__meta { display: flex; flex-wrap: wrap; align-items: center; gap: .5rem 1rem; padding: 1.1rem .3rem 0; }
.work__tag { font-family: var(--display); font-size: .76rem; letter-spacing: .04em; text-transform: uppercase; color: var(--accent); background: color-mix(in srgb, var(--accent) 10%, transparent); padding: .35em .9em; border-radius: 999px; }
.work__meta h3 { font-family: var(--jp); font-weight: 700; font-size: 1.25rem; }
.work__go { margin-left: auto; font-weight: 600; color: var(--muted); font-size: .9rem; transition: color .2s, transform .25s var(--ease); }
.work:hover .work__go { color: var(--accent); }
.works__note { text-align: center; color: var(--muted); font-size: .88rem; margin-top: clamp(2rem, 4vw, 3rem); }

/* ── CAN DO ─────────────────────────────────── */
.can-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: clamp(1.1rem, 2.4vw, 1.8rem); }
.can { background: var(--paper); border: 1px solid var(--line); border-radius: var(--r); padding: clamp(1.6rem, 3vw, 2.2rem); transition: transform .3s var(--ease), box-shadow .3s; }
.can:hover { transform: translateY(-5px); box-shadow: var(--shadow-sm); }
.can h3 { font-family: var(--jp); font-weight: 700; font-size: 1.18rem; margin-bottom: .5rem; padding-left: .8rem; border-left: 3px solid var(--accent); }
.can p { color: var(--muted); font-size: .95rem; }

/* ── FLOW ───────────────────────────────────── */
.flow { display: grid; grid-template-columns: repeat(4, 1fr); gap: clamp(1.1rem, 2.4vw, 1.8rem); counter-reset: f; }
.flow li { position: relative; padding-top: 1rem; }
.flow li::before { content: ""; position: absolute; top: 0; left: 0; right: 0; height: 3px; background: var(--line); border-radius: 3px; }
.flow li:first-child::before { background: var(--accent); }
.flow__no { font-family: var(--display); font-weight: 700; font-size: 1.6rem; color: var(--accent); }
.flow h3 { font-family: var(--jp); font-weight: 700; font-size: 1.15rem; margin: .3rem 0 .5rem; }
.flow p { color: var(--muted); font-size: .92rem; }

/* ── CTA ────────────────────────────────────── */
.cta { background: var(--ink); color: var(--paper); padding-block: clamp(70px, 10vw, 130px); }
.cta__inner { text-align: center; max-width: 640px; margin-inline: auto; }
.cta h2 { font-family: var(--jp); font-weight: 900; font-size: clamp(1.8rem, 4.4vw, 2.8rem); line-height: 1.35; }
.cta__inner > p { color: color-mix(in srgb, var(--paper) 76%, transparent); margin: 1.1rem 0 2rem; }
.cta__note { font-size: .78rem !important; color: color-mix(in srgb, var(--paper) 55%, transparent) !important; margin: 1.4rem 0 0 !important; }

/* ── FOOTER ─────────────────────────────────── */
.ftr { background: var(--surface); border-top: 1px solid var(--line); padding-block: clamp(38px, 6vw, 58px); }
.ftr__inner { display: flex; flex-wrap: wrap; align-items: center; gap: 1.2rem 2rem; }
.ftr__brand { display: inline-flex; align-items: center; gap: .55em; font-weight: 700; }
.ftr__nav { display: flex; flex-wrap: wrap; gap: 1.3rem; }
.ftr__nav a { color: var(--muted); font-size: .92rem; transition: color .2s; }
.ftr__nav a:hover { color: var(--accent); }
.ftr__copy { margin-left: auto; color: var(--muted); font-size: .82rem; font-family: var(--display); }

/* ── reveal ─────────────────────────────────── */
[data-up] { opacity: 0; transform: translateY(24px); transition: opacity .7s var(--ease), transform .7s var(--ease); }
[data-up].is-in { opacity: 1; transform: none; }
[data-up].is-in[data-up-d="1"] { transition-delay: .1s; }
[data-up].is-in[data-up-d="2"] { transition-delay: .2s; }
[data-up].is-in[data-up-d="3"] { transition-delay: .3s; }

/* ── レスポンシブ ───────────────────────────── */
@media (max-width: 900px) {
  .can-grid { grid-template-columns: 1fr 1fr; }
  .flow { grid-template-columns: 1fr 1fr; gap: 2rem 1.5rem; }
}
@media (max-width: 680px) {
  .nav, .hdr__inner > .btn { display: none; }
  .burger { display: flex; }
  .drawer:not([hidden]) { display: flex; }
  .works { grid-template-columns: 1fr; }
  .can-grid { grid-template-columns: 1fr; }
  .flow { grid-template-columns: 1fr; }
  .ftr__copy { margin-left: 0; width: 100%; }
}
@media (prefers-reduced-motion: reduce) {
  * { animation: none !important; scroll-behavior: auto !important; }
  [data-up] { opacity: 1; transform: none; transition: none; }
}