/* ============================================================
   COKAI Portfolio — Module 01
   Dark, minimal, business-creator portfolio
   ============================================================ */

:root {
  --bg: #08090c;
  --bg-2: #0c0e13;
  --surface: rgba(18, 20, 27, 0.62);
  --surface-2: rgba(14, 16, 22, 0.55);
  --border: rgba(255, 255, 255, 0.12);
  --border-soft: rgba(255, 255, 255, 0.16);
  --text: #f4f5f7;
  --text-dim: #aeb3bd;
  --text-faint: #7c828e;
  --accent: #8b8cff;     /* soft violet  */
  --accent-2: #5fb6ff;   /* soft blue    */
  --radius: 20px;
  --radius-lg: 24px;
  --maxw: 1200px;
  --font: -apple-system, BlinkMacSystemFont, "Helvetica Neue", "Noto Sans JP",
    "Yu Gothic", "YuGothic", "Hiragino Sans", sans-serif;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
  background: var(--bg);
}

body {
  margin: 0;
  background: transparent;
  color: var(--text);
  font-family: var(--font);
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
  overflow-x: hidden;
}

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

/* Subtle legibility shadow for text that sits directly over the
   prism background (section heads, hero copy, block intros). */
.hero__eyebrow,
.hero__title,
.hero__lead,
.hero__sub,
.section__title,
.section__sub,
.sns-block__title,
.sns-block__desc,
.next__eyebrow,
.next__title,
.next__body {
  text-shadow: 0 1px 14px rgba(0, 0, 0, 0.55);
}

/* ---------------- Global page background ---------------- */
/* Fixed prism layer behind every section (avoids iOS background-attachment
   issues by using a real fixed element instead of background-attachment). */
.page-bg {
  position: fixed;
  inset: 0;
  z-index: -2;
  background-color: var(--bg);
  background-image: url("assets/bg_prism_opt.png");
  background-size: cover;
  background-position: 62% center;
  background-repeat: no-repeat;
}

.page-bg::after {
  content: "";
  position: absolute;
  inset: 0;
  /* Keep the prism + refracted light readable but never washed out.
     The radial gently tames the bright refracted streak in the middle,
     the linear grounds the lower content. */
  background:
    radial-gradient(
      130% 90% at 50% 48%,
      rgba(8, 9, 12, 0) 0%,
      rgba(8, 9, 12, 0.28) 60%,
      rgba(8, 9, 12, 0.5) 100%
    ),
    linear-gradient(
      180deg,
      rgba(8, 9, 12, 0.5) 0%,
      rgba(8, 9, 12, 0.68) 45%,
      rgba(8, 9, 12, 0.82) 100%
    );
}

ul {
  margin: 0;
  padding: 0;
  list-style: none;
}

/* ---------------- Navbar ---------------- */
.nav {
  position: fixed;
  inset: 0 0 auto 0;
  z-index: 50;
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  background: rgba(8, 9, 12, 0.45);
  border-bottom: 1px solid rgba(255, 255, 255, 0.06);
  transition: background 0.3s ease, border-color 0.3s ease;
}

.nav.is-scrolled {
  background: rgba(8, 9, 12, 0.82);
}

.nav__inner {
  max-width: var(--maxw);
  margin: 0 auto;
  padding: 16px 24px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.nav__logo {
  font-size: 0.95rem;
  font-weight: 600;
  letter-spacing: 0.06em;
}

.nav__logo span {
  color: var(--text-faint);
  font-weight: 400;
}

.nav__menu {
  display: flex;
  gap: 28px;
}

.nav__menu a {
  font-size: 0.85rem;
  letter-spacing: 0.05em;
  color: var(--text-dim);
  padding: 6px 0;
  position: relative;
  transition: color 0.2s ease;
}

.nav__menu a::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: 0;
  width: 0;
  height: 1px;
  background: linear-gradient(90deg, var(--accent), var(--accent-2));
  transition: width 0.25s ease;
}

.nav__menu a:hover {
  color: var(--text);
}

.nav__menu a:hover::after {
  width: 100%;
}

/* ---------------- Hero ---------------- */
.hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  padding: 120px 24px 80px;
  overflow: hidden;
}

/* Directional darkening so the left-side copy stays crisp while the
   prism and refracted light remain visible on the right. */
.hero__overlay {
  position: absolute;
  inset: 0;
  background:
    linear-gradient(
      90deg,
      rgba(0, 0, 0, 0.82) 0%,
      rgba(0, 0, 0, 0.5) 45%,
      rgba(0, 0, 0, 0.12) 100%
    );
}

.hero__inner {
  position: relative;
  z-index: 2;
  max-width: var(--maxw);
  margin: 0 auto;
  width: 100%;
  display: grid;
  grid-template-columns: minmax(0, 1.55fr) minmax(0, 1fr);
  gap: 56px;
  align-items: center;
}

.hero__copy {
  max-width: 660px;
}

.hero__eyebrow {
  margin: 0 0 18px;
  font-size: 0.8rem;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--accent);
}

.hero__title {
  margin: 0 0 24px;
  font-size: clamp(1.7rem, 3.4vw, 2.9rem);
  line-height: 1.3;
  font-weight: 700;
  letter-spacing: 0.01em;
}

.hero__bar {
  color: var(--text-faint);
  font-weight: 400;
}

.hero__lead {
  margin: 0 0 16px;
  font-size: clamp(0.95rem, 1.1vw, 1.05rem);
  color: var(--text-dim);
}

.hero__sub {
  margin: 0 0 28px;
  font-size: 0.92rem;
  color: var(--text-faint);
}

.tags {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin: 0 0 34px;
}

.tags li {
  font-size: 0.8rem;
  letter-spacing: 0.03em;
  color: var(--text);
  padding: 7px 14px;
  border: 1px solid var(--border-soft);
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.03);
}

.hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
}

/* ---------------- Buttons ---------------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-size: 0.9rem;
  font-weight: 600;
  letter-spacing: 0.02em;
  padding: 13px 24px;
  border-radius: 12px;
  border: 1px solid transparent;
  cursor: pointer;
  transition: transform 0.2s ease, background 0.2s ease,
    border-color 0.2s ease, opacity 0.2s ease;
}

.btn--primary {
  background: #f4f5f7;
  color: #0b0c10;
}

.btn--primary:hover {
  transform: translateY(-2px);
  background: #ffffff;
}

.btn--ghost {
  background: transparent;
  color: var(--text);
  border-color: rgba(255, 255, 255, 0.28);
}

.btn--ghost:hover {
  border-color: rgba(255, 255, 255, 0.6);
  background: rgba(255, 255, 255, 0.05);
}

/* ---------------- Hero profile card ---------------- */
.hero__card {
  justify-self: end;
  width: 100%;
  max-width: 340px;
}

.profile {
  background: rgba(10, 12, 16, 0.7);
  border: 1px solid var(--border-soft);
  border-radius: var(--radius-lg);
  padding: 16px;
  box-shadow: 0 24px 60px rgba(0, 0, 0, 0.45);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
}

.profile__photo {
  position: relative;
  aspect-ratio: 4 / 5;
  border-radius: 18px;
  overflow: hidden;
  border: 1px solid rgba(255, 255, 255, 0.08);
}

.profile__photo img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center 22%;
  display: block;
  filter: saturate(0.96) contrast(1.02) brightness(0.97);
}

.profile__photo::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, rgba(8, 9, 12, 0) 55%, rgba(8, 9, 12, 0.45) 100%);
}

.profile__meta {
  padding: 16px 6px 6px;
}

.profile__name {
  margin: 0 0 4px;
  font-size: 0.98rem;
  font-weight: 600;
  letter-spacing: 0.02em;
}

.profile__role {
  margin: 0;
  font-size: 0.78rem;
  color: var(--text-faint);
  letter-spacing: 0.02em;
}

/* ---------------- Sections ---------------- */
.services {
  max-width: var(--maxw);
  margin: 0 auto;
  padding: 100px 24px;
}

.section__head {
  max-width: 720px;
  margin: 0 0 48px;
}

.section__title {
  margin: 0 0 16px;
  font-size: clamp(1.5rem, 2.6vw, 2.1rem);
  font-weight: 700;
  letter-spacing: 0.02em;
}

.section__title::before {
  content: "";
  display: inline-block;
  width: 28px;
  height: 2px;
  margin-right: 14px;
  vertical-align: middle;
  background: linear-gradient(90deg, var(--accent), var(--accent-2));
}

.section__sub {
  margin: 0;
  font-size: 0.95rem;
  color: var(--text-dim);
}

/* ---------------- Cards ---------------- */
.cards {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
}

.card {
  position: relative;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 28px 24px 24px;
  display: flex;
  flex-direction: column;
  transition: transform 0.25s ease, border-color 0.25s ease,
    background 0.25s ease;
  overflow: hidden;
}

.card::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 2px;
  background: linear-gradient(90deg, var(--accent), var(--accent-2));
  opacity: 0;
  transition: opacity 0.25s ease;
}

.card:hover {
  transform: translateY(-5px);
  border-color: rgba(255, 255, 255, 0.22);
  background: rgba(32, 35, 46, 0.72);
}

.card:hover::before {
  opacity: 1;
}

.card__index {
  font-size: 0.78rem;
  font-weight: 600;
  letter-spacing: 0.14em;
  color: var(--accent);
  margin-bottom: 14px;
}

.card__title {
  margin: 0 0 14px;
  font-size: 1.08rem;
  font-weight: 600;
  letter-spacing: 0.01em;
}

.card__body {
  margin: 0 0 20px;
  font-size: 0.88rem;
  color: var(--text-dim);
  flex: 1;
}

.chips {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.chips li {
  font-size: 0.72rem;
  letter-spacing: 0.02em;
  color: var(--text-faint);
  padding: 5px 11px;
  border: 1px solid rgba(255, 255, 255, 0.09);
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.02);
}

.card__link {
  margin-top: 18px;
  align-self: flex-start;
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 0.8rem;
  letter-spacing: 0.02em;
  color: var(--text-dim);
  transition: color 0.2s ease, gap 0.2s ease;
}

.card__link::after {
  content: "→";
  font-size: 0.85rem;
  color: var(--accent);
  transition: transform 0.2s ease;
}

.card__link:hover {
  color: var(--text);
}

.card__link:hover::after {
  transform: translateX(3px);
}

/* ---------------- Next placeholder ---------------- */
.next {
  border-top: 1px solid rgba(255, 255, 255, 0.06);
  background: rgba(8, 9, 12, 0.55);
}

.next__inner {
  max-width: var(--maxw);
  margin: 0 auto;
  padding: 80px 24px;
}

.next__eyebrow {
  margin: 0 0 12px;
  font-size: 0.78rem;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--text-faint);
}

.next__title {
  margin: 0 0 16px;
  font-size: clamp(1.3rem, 2.2vw, 1.8rem);
  font-weight: 700;
  color: var(--text);
}

.next__body {
  margin: 0;
  max-width: 680px;
  font-size: 0.92rem;
  color: var(--text-dim);
}

.next__actions {
  margin-top: 24px;
}

/* ---------------- Footer / Contact ---------------- */
.footer {
  border-top: 1px solid rgba(255, 255, 255, 0.06);
  background: rgba(6, 7, 10, 0.72);
}

.footer__links {
  display: flex;
  flex-wrap: wrap;
  gap: 18px;
  margin-top: 14px;
}

.footer__links a {
  font-size: 0.82rem;
  color: var(--text-dim);
  border-bottom: 1px solid rgba(255, 255, 255, 0.18);
  padding-bottom: 2px;
  transition: color 0.2s ease, border-color 0.2s ease;
}

.footer__links a:hover {
  color: var(--text);
  border-color: rgba(255, 255, 255, 0.5);
}

.footer__inner {
  max-width: var(--maxw);
  margin: 0 auto;
  padding: 60px 24px 28px;
  display: flex;
  flex-wrap: wrap;
  gap: 32px;
  justify-content: space-between;
  align-items: flex-end;
}

.footer__logo {
  margin: 0 0 8px;
  font-size: 1rem;
  font-weight: 600;
  letter-spacing: 0.06em;
}

.footer__logo span {
  color: var(--text-faint);
  font-weight: 400;
}

.footer__name {
  margin: 0;
  font-size: 0.85rem;
  color: var(--text-faint);
}

.footer__note {
  margin: 12px 0 0;
  max-width: 460px;
  font-size: 0.72rem;
  line-height: 1.6;
  color: var(--text-faint);
  opacity: 0.85;
}

.footer__label {
  margin: 0 0 12px;
  font-size: 0.78rem;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--text-faint);
}

.footer__copy {
  max-width: var(--maxw);
  margin: 0 auto;
  padding: 20px 24px 40px;
  font-size: 0.75rem;
  color: var(--text-faint);
  border-top: 1px solid rgba(255, 255, 255, 0.05);
}

/* ============================================================
   Module 02 — 動画制作実績
   ============================================================ */
.video-works {
  max-width: var(--maxw);
  margin: 0 auto;
  padding: 100px 24px;
  border-top: 1px solid rgba(255, 255, 255, 0.06);
}

.video-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 22px;
  margin-bottom: 64px;
}

.video-card {
  display: flex;
  flex-direction: column;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
  transition: transform 0.25s ease, border-color 0.25s ease,
    background 0.25s ease;
}

.video-card:hover {
  transform: translateY(-5px);
  border-color: rgba(255, 255, 255, 0.22);
  background: rgba(32, 35, 46, 0.72);
}

.video-card__thumb {
  display: block;
  position: relative;
  margin: 12px 12px 0;
  border-radius: 14px;
  overflow: hidden;
  border: 1px solid rgba(255, 255, 255, 0.08);
}

.video-card__thumb img {
  display: block;
  width: 100%;
  aspect-ratio: 16 / 9;
  object-fit: cover;
  transition: transform 0.4s ease;
}

.video-card__thumb:hover img {
  transform: scale(1.04);
}

.video-card__content {
  padding: 18px 20px 22px;
  display: flex;
  flex-direction: column;
  flex: 1;
}

.video-card__type {
  margin: 0 0 8px;
  font-size: 0.74rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--accent);
}

.video-card__title {
  margin: 0 0 10px;
  font-size: 1.02rem;
  font-weight: 600;
  letter-spacing: 0.01em;
  line-height: 1.5;
}

.video-card__result {
  margin: 0 0 14px;
  font-size: 0.82rem;
  font-weight: 600;
  color: var(--text);
}

.video-card__description {
  margin: 0 0 18px;
  font-size: 0.85rem;
  color: var(--text-dim);
  flex: 1;
}

.video-card__roles {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-bottom: 22px;
}

.video-card__roles span {
  font-size: 0.72rem;
  letter-spacing: 0.02em;
  color: var(--text-faint);
  padding: 5px 11px;
  border: 1px solid rgba(255, 255, 255, 0.09);
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.02);
}

.video-card__link {
  align-self: flex-start;
  margin-top: auto;
  font-size: 0.85rem;
  font-weight: 600;
  letter-spacing: 0.02em;
  color: var(--text);
  padding: 10px 20px;
  border: 1px solid rgba(255, 255, 255, 0.28);
  border-radius: 12px;
  transition: border-color 0.2s ease, background 0.2s ease,
    transform 0.2s ease;
}

.video-card__link:hover {
  border-color: rgba(255, 255, 255, 0.6);
  background: rgba(255, 255, 255, 0.05);
  transform: translateY(-2px);
}

/* ----- Continuous production summary ----- */
.production-summary {
  background: var(--surface-2);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 36px 32px;
}

.production-summary__title {
  margin: 0 0 14px;
  font-size: 1.12rem;
  font-weight: 600;
  letter-spacing: 0.01em;
}

.production-summary__body {
  margin: 0 0 30px;
  max-width: 820px;
  font-size: 0.9rem;
  color: var(--text-dim);
}

.production-stats {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 16px;
}

.production-stat {
  display: flex;
  flex-direction: column;
  gap: 6px;
  padding: 22px 20px;
  border: 1px solid var(--border);
  border-radius: 16px;
  background: rgba(255, 255, 255, 0.03);
}

.production-stat__num {
  font-size: 1.35rem;
  font-weight: 700;
  letter-spacing: 0.01em;
  background: linear-gradient(90deg, #cfd0ff, var(--accent-2));
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
}

.production-stat__label {
  font-size: 0.78rem;
  color: var(--text-faint);
  letter-spacing: 0.02em;
}

.production-summary__note {
  margin: 18px 0 0;
  font-size: 0.72rem;
  color: var(--text-faint);
  letter-spacing: 0.02em;
}

/* ============================================================
   Module 03 — SNS運用実績
   ============================================================ */
.sns-operations {
  max-width: var(--maxw);
  margin: 0 auto;
  padding: 100px 24px;
  border-top: 1px solid rgba(255, 255, 255, 0.06);
}

/* ----- Part 1: operation totals ----- */
.sns-stats {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 16px;
}

.sns-stat {
  display: flex;
  flex-direction: column;
  gap: 6px;
  padding: 26px 22px;
  border: 1px solid var(--border);
  border-radius: 16px;
  background: var(--surface);
}

.sns-stat__num {
  font-size: 1.55rem;
  font-weight: 700;
  letter-spacing: 0.01em;
  background: linear-gradient(90deg, #cfd0ff, var(--accent-2));
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
}

.sns-stat__label {
  font-size: 0.8rem;
  color: var(--text-faint);
  letter-spacing: 0.02em;
}

.sns-stats__note {
  margin: 14px 0 0;
  font-size: 0.72rem;
  color: var(--text-faint);
  letter-spacing: 0.02em;
}

/* ----- Shared block heads ----- */
.sns-block {
  margin-top: 56px;
}

.sns-block__title {
  margin: 0 0 14px;
  font-size: 1.12rem;
  font-weight: 600;
  letter-spacing: 0.01em;
}

.sns-block__title::before {
  content: "";
  display: inline-block;
  width: 22px;
  height: 2px;
  margin-right: 12px;
  vertical-align: middle;
  background: linear-gradient(90deg, var(--accent), var(--accent-2));
}

.sns-block__desc {
  margin: 0 0 26px;
  max-width: 820px;
  font-size: 0.9rem;
  color: var(--text-dim);
}

/* ----- Part 2: operation flow ----- */
.sns-flow {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: 14px;
}

.sns-flow-item {
  position: relative;
  display: flex;
  flex-direction: column;
  gap: 8px;
  padding: 22px 18px;
  border: 1px solid var(--border);
  border-radius: 16px;
  background: var(--surface);
}

.sns-flow-item__step {
  font-size: 0.74rem;
  font-weight: 600;
  letter-spacing: 0.14em;
  color: var(--accent);
}

.sns-flow-item__name {
  font-size: 1rem;
  font-weight: 600;
  color: var(--text);
}

.sns-flow-item__text {
  font-size: 0.8rem;
  color: var(--text-faint);
  line-height: 1.6;
}

/* ----- Part 3: representative post types ----- */
.sns-cases {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 18px;
}

.sns-case {
  display: flex;
  flex-direction: column;
  padding: 24px 22px;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  background: var(--surface);
  transition: transform 0.25s ease, border-color 0.25s ease,
    background 0.25s ease;
}

.sns-case:hover {
  transform: translateY(-4px);
  border-color: rgba(255, 255, 255, 0.22);
  background: rgba(32, 35, 46, 0.72);
}

.sns-case__meta {
  margin: 0 0 10px;
  font-size: 0.8rem;
  font-weight: 600;
  letter-spacing: 0.02em;
  color: var(--accent-2);
}

.sns-case__title {
  margin: 0 0 12px;
  font-size: 1.02rem;
  font-weight: 600;
  letter-spacing: 0.01em;
}

.sns-case__body {
  margin: 0 0 18px;
  font-size: 0.85rem;
  color: var(--text-dim);
  flex: 1;
}

.sns-case__tags {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.sns-case__tags span {
  font-size: 0.72rem;
  letter-spacing: 0.02em;
  color: var(--text-faint);
  padding: 5px 11px;
  border: 1px solid rgba(255, 255, 255, 0.09);
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.02);
}

/* ----- Part 4: content fields ----- */
.content-fields {
  margin-top: 56px;
  padding: 32px;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  background: var(--surface-2);
}

.content-fields .sns-block__title {
  margin-bottom: 20px;
}

.content-field-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

.content-field-tags span {
  font-size: 0.8rem;
  letter-spacing: 0.02em;
  color: var(--text);
  padding: 8px 16px;
  border: 1px solid var(--border-soft);
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.03);
}

/* ============================================================
   Module 04 — 告知画像・宣伝素材制作
   ============================================================ */
.visual-materials {
  max-width: var(--maxw);
  margin: 0 auto;
  padding: 100px 24px;
  border-top: 1px solid rgba(255, 255, 255, 0.06);
}

/* ---- Uniform glass card grid (Apple / macOS frosted style) ---- */
.visual-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 22px;
}

.visual-card {
  position: relative;
  display: flex;
  flex-direction: column;
  background: linear-gradient(
      145deg,
      rgba(255, 255, 255, 0.105),
      rgba(255, 255, 255, 0.035)
    ),
    rgba(18, 20, 27, 0.56);
  border: 1px solid rgba(255, 255, 255, 0.08);
  border-radius: 26px;
  overflow: hidden;
  backdrop-filter: blur(28px) saturate(145%);
  -webkit-backdrop-filter: blur(28px) saturate(145%);
  box-shadow: 0 24px 70px rgba(0, 0, 0, 0.38),
    inset 0 1px 0 rgba(255, 255, 255, 0.16),
    inset 0 -1px 0 rgba(255, 255, 255, 0.04);
  transition: transform 0.26s ease, box-shadow 0.26s ease,
    border-color 0.26s ease;
}

/* Soft luminous edge (gradient border via mask) */
.visual-card::before {
  content: "";
  position: absolute;
  inset: 0;
  border-radius: inherit;
  padding: 1px;
  background: linear-gradient(
    145deg,
    rgba(255, 255, 255, 0.22),
    rgba(255, 255, 255, 0.03) 38%,
    rgba(255, 255, 255, 0.1)
  );
  -webkit-mask: linear-gradient(#000 0 0) content-box,
    linear-gradient(#000 0 0);
  -webkit-mask-composite: xor;
  mask-composite: exclude;
  pointer-events: none;
  opacity: 0.7;
  transition: opacity 0.26s ease;
  z-index: 2;
}

/* Soft top-corner glow that blurs the hard edge feel */
.visual-card::after {
  content: "";
  position: absolute;
  inset: -40%;
  background: radial-gradient(
    circle at 20% 0%,
    rgba(255, 255, 255, 0.13),
    transparent 34%
  );
  opacity: 0.35;
  filter: blur(22px);
  pointer-events: none;
  z-index: 0;
}

.visual-card > * {
  position: relative;
  z-index: 1;
}

@media (hover: hover) {
  .visual-card:hover {
    transform: translateY(-4px);
    border-color: rgba(255, 255, 255, 0.14);
    box-shadow: 0 30px 90px rgba(0, 0, 0, 0.46),
      inset 0 1px 0 rgba(255, 255, 255, 0.2);
  }

  .visual-card:hover::before {
    opacity: 0.95;
  }
}

/* Uniform image container; contain-variant letterboxes inside same box */
.visual-card__image {
  aspect-ratio: 4 / 3;
  margin: 12px 12px 0;
  border-radius: 20px;
  background: rgba(0, 0, 0, 0.22);
  overflow: hidden;
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.08),
    0 12px 32px rgba(0, 0, 0, 0.22);
}

.visual-card__image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
  border-radius: inherit;
}

/* Wide diagrams / portrait posters: show the whole image, no cropping. */
.visual-card__image--contain img {
  object-fit: contain;
}

.visual-card__content {
  padding: 18px 20px 22px;
  display: flex;
  flex-direction: column;
  flex: 1;
}

.visual-card__type {
  margin: 0 0 8px;
  font-size: 0.74rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--accent);
}

.visual-card__title {
  margin: 0 0 12px;
  font-size: 1.02rem;
  font-weight: 600;
  letter-spacing: 0.01em;
}

.visual-card__body {
  margin: 0 0 18px;
  font-size: 0.85rem;
  color: var(--text-dim);
  flex: 1;
}

.visual-card__tags {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.visual-card__tags span {
  font-size: 0.72rem;
  letter-spacing: 0.02em;
  color: var(--text-faint);
  padding: 5px 11px;
  border: 1px solid rgba(255, 255, 255, 0.09);
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.02);
}

/* ============================================================
   Module 05 — 制作進行・関係者調整
   ============================================================ */
.project-management {
  max-width: var(--maxw);
  margin: 0 auto;
  padding: 100px 24px;
  border-top: 1px solid rgba(255, 255, 255, 0.06);
}

.project-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
  margin-bottom: 56px;
}

.project-card {
  display: flex;
  flex-direction: column;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
  transition: transform 0.25s ease, border-color 0.25s ease,
    background 0.25s ease;
}

.project-card:hover {
  transform: translateY(-4px);
  border-color: rgba(255, 255, 255, 0.22);
  background: rgba(32, 35, 46, 0.72);
}

.project-card__image {
  aspect-ratio: 16 / 9;
  background: #070809;
  overflow: hidden;
}

.project-card__image img {
  width: 100%;
  height: 100%;
  object-fit: contain;
  display: block;
}

.project-card__content {
  padding: 20px 20px 22px;
  display: flex;
  flex-direction: column;
  flex: 1;
}

.project-card__type {
  margin: 0 0 8px;
  font-size: 0.74rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--accent);
}

.project-card__title {
  margin: 0 0 12px;
  font-size: 1.02rem;
  font-weight: 600;
  letter-spacing: 0.01em;
}

.project-card__body {
  margin: 0 0 18px;
  font-size: 0.85rem;
  color: var(--text-dim);
  flex: 1;
}

.project-card__tags {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.project-card__tags span {
  font-size: 0.72rem;
  letter-spacing: 0.02em;
  color: var(--text-faint);
  padding: 5px 11px;
  border: 1px solid rgba(255, 255, 255, 0.09);
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.02);
}

/* ----- Summary ----- */
.project-summary {
  background: var(--surface-2);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 32px;
}

.project-summary__title {
  margin: 0 0 14px;
  font-size: 1.12rem;
  font-weight: 600;
  letter-spacing: 0.01em;
}

.project-summary__body {
  margin: 0 0 24px;
  max-width: 820px;
  font-size: 0.9rem;
  color: var(--text-dim);
}

.project-summary__tags {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

.project-summary__tags span {
  font-size: 0.8rem;
  letter-spacing: 0.02em;
  color: var(--text);
  padding: 8px 16px;
  border: 1px solid var(--border-soft);
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.03);
}

/* ============================================================
   Module 07 — Additional Works
   ============================================================ */
.additional-works {
  max-width: var(--maxw);
  margin: 0 auto;
  padding: 100px 24px;
  border-top: 1px solid rgba(255, 255, 255, 0.06);
}

.additional-works .project-grid {
  grid-template-columns: repeat(2, 1fr);
}

/* ============================================================
   Module 06 — AI・Web・制作フロー設計
   ============================================================ */
.learning-tools {
  max-width: var(--maxw);
  margin: 0 auto;
  padding: 100px 24px;
  border-top: 1px solid rgba(255, 255, 255, 0.06);
}

.learning-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 22px;
  margin-bottom: 28px;
}

.learning-card {
  display: flex;
  flex-direction: column;
  padding: 30px 26px 28px;
  background: linear-gradient(
      145deg,
      rgba(255, 255, 255, 0.085),
      rgba(255, 255, 255, 0.03)
    ),
    rgba(18, 20, 27, 0.54);
  border: 1px solid rgba(255, 255, 255, 0.08);
  border-radius: 24px;
  backdrop-filter: blur(24px) saturate(140%);
  -webkit-backdrop-filter: blur(24px) saturate(140%);
  box-shadow: 0 20px 56px rgba(0, 0, 0, 0.32),
    inset 0 1px 0 rgba(255, 255, 255, 0.12);
  transition: transform 0.26s ease, box-shadow 0.26s ease,
    border-color 0.26s ease;
}

@media (hover: hover) {
  .learning-card:hover {
    transform: translateY(-4px);
    border-color: rgba(255, 255, 255, 0.14);
    box-shadow: 0 28px 76px rgba(0, 0, 0, 0.44),
      inset 0 1px 0 rgba(255, 255, 255, 0.18);
  }
}

.learning-card__type {
  margin: 0 0 10px;
  font-size: 0.74rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--accent);
}

.learning-card__title {
  margin: 0 0 14px;
  font-size: 1.05rem;
  font-weight: 600;
  letter-spacing: 0.01em;
}

.learning-card__body {
  margin: 0 0 22px;
  font-size: 0.86rem;
  color: var(--text-dim);
  flex: 1;
}

.learning-card__tags {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.learning-card__tags span {
  font-size: 0.72rem;
  letter-spacing: 0.02em;
  color: var(--text-faint);
  padding: 5px 11px;
  border: 1px solid rgba(255, 255, 255, 0.09);
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.02);
}

.learning-summary {
  padding: 34px 30px;
  background: var(--surface-2);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  backdrop-filter: blur(20px) saturate(130%);
  -webkit-backdrop-filter: blur(20px) saturate(130%);
}

.learning-summary__title {
  margin: 0 0 12px;
  font-size: 1.12rem;
  font-weight: 600;
  letter-spacing: 0.01em;
}

.learning-summary__body {
  margin: 0 0 20px;
  font-size: 0.9rem;
  color: var(--text-dim);
  max-width: 720px;
}

.learning-summary__tags {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

.learning-summary__tags span {
  font-size: 0.8rem;
  letter-spacing: 0.02em;
  color: var(--text);
  padding: 8px 16px;
  border: 1px solid var(--border-soft);
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.03);
}

/* ============================================================
   Responsive
   ============================================================ */
@media (max-width: 900px) {
  .hero__inner {
    grid-template-columns: 1fr;
    gap: 40px;
  }

  .hero__card {
    justify-self: start;
    max-width: 300px;
  }

  .cards {
    grid-template-columns: repeat(2, 1fr);
  }

  .video-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .production-stats {
    grid-template-columns: repeat(2, 1fr);
  }

  .sns-stats {
    grid-template-columns: repeat(2, 1fr);
  }

  .sns-flow {
    grid-template-columns: repeat(2, 1fr);
  }

  .sns-cases {
    grid-template-columns: repeat(2, 1fr);
  }

  .visual-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .project-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .learning-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 640px) {
  .nav__inner {
    padding-left: 16px;
    padding-right: 16px;
  }

  .nav__menu {
    gap: 13px;
  }

  .nav__menu a {
    font-size: 0.74rem;
  }

  .page-bg {
    background-position: 70% center;
  }

  .page-bg::after {
    background:
      linear-gradient(
        180deg,
        rgba(8, 9, 12, 0.7) 0%,
        rgba(8, 9, 12, 0.74) 50%,
        rgba(8, 9, 12, 0.86) 100%
      );
  }

  .hero {
    padding: 104px 20px 64px;
  }

  .hero__overlay {
    background:
      linear-gradient(
        180deg,
        rgba(0, 0, 0, 0.55) 0%,
        rgba(0, 0, 0, 0.35) 50%,
        rgba(0, 0, 0, 0.55) 100%
      );
  }

  .hero__title {
    font-size: clamp(1.45rem, 6vw, 1.9rem);
  }

  .hero__actions {
    flex-direction: column;
  }

  .btn {
    width: 100%;
  }

  .hero__card {
    max-width: 100%;
  }

  .profile {
    display: flex;
    gap: 16px;
    align-items: center;
  }

  .profile__photo {
    width: 96px;
    flex: none;
    aspect-ratio: 4 / 5;
    border-radius: 14px;
  }

  .profile__meta {
    padding: 0;
  }

  .services,
  .video-works,
  .sns-operations,
  .visual-materials,
  .project-management,
  .learning-tools,
  .additional-works,
  .next__inner {
    padding-top: 72px;
    padding-bottom: 72px;
  }

  .cards,
  .video-grid,
  .production-stats,
  .sns-stats,
  .sns-flow,
  .sns-cases,
  .visual-grid,
  .project-grid,
  .learning-grid {
    grid-template-columns: 1fr;
  }


  .production-summary,
  .content-fields,
  .project-summary {
    padding: 28px 22px;
  }

  .footer__inner {
    flex-direction: column;
    align-items: flex-start;
  }
}