/* ============================
   Works Page
============================ */

/* ヘッダーを常に白背景で表示 */
#header {
  background: rgba(255, 255, 255, 0.97);
  border-bottom: 1px solid var(--border);
}

.nav-active {
  color: var(--black) !important;
  font-weight: 700 !important;
}
.nav-active::after {
  width: 100% !important;
}

/* Page Hero */
.page-hero {
  padding: 160px 48px 88px;
  background: var(--off-white);
  border-bottom: 2px solid var(--black);
}

.page-hero-inner {
  max-width: 960px;
  margin: 0 auto;
}

.page-hero-title {
  font-family: var(--font-gothic);
  font-size: clamp(2rem, 5vw, 3.2rem);
  font-weight: 700;
  letter-spacing: 0.08em;
  color: var(--black);
  margin-bottom: 16px;
  line-height: 1.3;
}

.page-hero-desc {
  font-size: 0.84rem;
  color: var(--text-light);
  letter-spacing: 0.08em;
  font-weight: 400;
}

/* Works Section */
.works-section {
  padding: 96px 0 120px;
  background: var(--white);
}

.works-inner {
  max-width: 960px;
  margin: 0 auto;
  padding: 0 48px;
}

/* Filter */
.works-filter {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-bottom: 64px;
}

.filter-btn {
  font-family: var(--font-gothic);
  font-size: 0.72rem;
  font-weight: 600;
  letter-spacing: 0.1em;
  padding: 9px 20px;
  border: 2px solid var(--border-dark);
  background: transparent;
  color: var(--text-light);
  cursor: pointer;
  transition: background 0.3s var(--ease), color 0.3s var(--ease), border-color 0.3s var(--ease);
}
.filter-btn:hover {
  border-color: var(--black);
  color: var(--black);
}
.filter-btn.active {
  background: var(--black);
  border-color: var(--black);
  color: var(--white);
}

/* Works Grid */
.works-grid {
  display: flex;
  flex-direction: column;
  gap: 0;
  border-top: 2px solid var(--black);
}

.work-item {
  display: grid;
  grid-template-columns: 80px 1fr;
  gap: 0;
  border-bottom: 1px solid var(--border);
  padding: 44px 0;
  transition: background 0.3s var(--ease);
}
.work-item:hover {
  background: var(--off-white);
  margin: 0 -24px;
  padding-left: 24px;
  padding-right: 24px;
}

.work-item.hidden {
  display: none;
}

.work-number {
  font-family: var(--font-gothic);
  font-size: 0.65rem;
  font-weight: 700;
  letter-spacing: 0.2em;
  color: var(--accent);
  padding-top: 4px;
}

.work-body {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.work-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
}

.work-tag {
  font-size: 0.62rem;
  font-weight: 600;
  letter-spacing: 0.12em;
  padding: 3px 10px;
  border: 1px solid var(--border-dark);
  color: var(--text-light);
  text-transform: uppercase;
}

.work-title {
  font-family: var(--font-gothic);
  font-size: 1.05rem;
  font-weight: 700;
  letter-spacing: 0.04em;
  color: var(--black);
  line-height: 1.4;
}

.work-client {
  font-size: 0.72rem;
  letter-spacing: 0.1em;
  color: var(--accent);
  font-weight: 500;
}

.work-desc {
  font-size: 0.82rem;
  color: var(--text-mid);
  line-height: 2;
  font-weight: 400;
  letter-spacing: 0.03em;
  max-width: 640px;
}

/* CTA */
.works-cta {
  margin-top: 88px;
  padding: 64px 48px;
  background: var(--black);
  text-align: center;
}

.works-cta-text {
  font-size: 0.9rem;
  color: rgba(255,255,255,0.7);
  letter-spacing: 0.08em;
  margin-bottom: 28px;
  font-weight: 300;
}

.works-cta-btn {
  display: inline-block;
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  padding: 14px 44px;
  border: 2px solid var(--accent);
  color: var(--accent);
  transition: background 0.35s var(--ease), color 0.35s var(--ease);
}
.works-cta-btn:hover {
  background: var(--accent);
  color: var(--black);
  opacity: 1;
}

/* ============================
   Responsive
============================ */
@media (max-width: 768px) {
  .page-hero {
    padding: 120px 24px 64px;
  }

  .works-inner { padding: 0 24px; }

  .work-item {
    grid-template-columns: 48px 1fr;
  }
  .work-item:hover {
    margin: 0 -12px;
    padding-left: 12px;
    padding-right: 12px;
  }

  .works-cta { padding: 48px 24px; }
  .filter-btn { font-size: 0.68rem; padding: 8px 14px; }
}

@media (max-width: 480px) {
  .work-item {
    grid-template-columns: 1fr;
  }
  .work-number { margin-bottom: 8px; }
}