/* =============================================
   WORKS PAGE — 実績紹介ページ固有スタイル
   ============================================= */

/* ─── LOGIN OVERLAY ─── */
#loginOverlay {
  position: fixed;
  inset: 0;
  background: var(--white);
  z-index: 9999;
  display: flex;
  align-items: center;
  justify-content: center;
}
.login-box {
  width: 100%;
  max-width: 400px;
  padding: 0 24px;
}
.login-logo {
  font-size: 14px;
  font-weight: 700;
  letter-spacing: 0.2em;
  text-align: center;
  margin-bottom: 48px;
}
.login-title {
  font-size: 11px;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--gray2);
  text-align: center;
  margin-bottom: 32px;
  display: flex;
  align-items: center;
  gap: 12px;
  justify-content: center;
}
.login-title::before,
.login-title::after {
  content: '';
  display: block;
  flex: 1;
  height: 1px;
  background: var(--border);
}
.login-form { display: flex; flex-direction: column; gap: 14px; }
.login-group { display: flex; flex-direction: column; gap: 6px; }
.login-group label {
  font-size: 10px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--gray1);
  font-weight: 600;
}
.login-group input {
  background: var(--gray4);
  border: 1px solid var(--border);
  color: var(--black);
  padding: 13px 16px;
  font-size: 14px;
  font-family: inherit;
  outline: none;
  width: 100%;
  border-radius: 0;
  transition: border-color 0.2s;
}
.login-group input:focus { border-color: var(--black); background: var(--white); }
.login-btn {
  background: var(--black);
  color: var(--white);
  border: none;
  padding: 14px;
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.12em;
  cursor: pointer;
  transition: background 0.2s;
  font-family: inherit;
  margin-top: 4px;
}
.login-btn:hover { background: #333; }
.login-error {
  font-size: 12px;
  color: #c00;
  text-align: center;
  min-height: 18px;
  margin-top: -4px;
}

/* ─── SITE (hidden until login) ─── */
#site { display: none; }

/* ─── HEADER (override: sticky + blur) ─── */
header {
  background: rgba(255,255,255,0.95);
  backdrop-filter: blur(10px);
  position: sticky;
  top: 0;
  z-index: 100;
}

/* ─── FILTER ─── */
.filter-bar {
  max-width: 1100px;
  margin: 0 auto;
  padding: 32px var(--pad-x) 0;
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
}
.filter-btn {
  padding: 7px 18px;
  font-size: 11px;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  border: 1px solid var(--border);
  background: var(--white);
  color: var(--gray1);
  cursor: pointer;
  transition: all 0.2s;
  font-family: inherit;
}
.filter-btn.active,
.filter-btn:hover { background: var(--black); color: var(--white); border-color: var(--black); }

/* ─── WORKS GRID ─── */
main {
  max-width: 1100px;
  margin: 0 auto;
  padding: 40px var(--pad-x) 96px;
}
.works-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}
.work-card {
  background: var(--white);
  border: 1px solid var(--border);
  overflow: hidden;
  transition: box-shadow 0.25s;
}
.work-card:hover { box-shadow: 0 4px 20px rgba(0,0,0,0.08); }
.work-thumb {
  aspect-ratio: 4/3;
  background: var(--gray4);
  overflow: hidden;
  position: relative;
}
.work-thumb img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
  transition: transform 0.4s ease;
}
.work-card:hover .work-thumb img { transform: scale(1.04); }
/* 画像なしの場合のプレースホルダー */
.work-thumb-placeholder {
  width: 100%;
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 36px;
  font-weight: 900;
  letter-spacing: -0.04em;
  color: rgba(0,0,0,0.06);
  background: var(--gray4);
}
.work-body { padding: 20px 22px 24px; }
.work-cat {
  font-size: 10px;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--gray2);
  margin-bottom: 6px;
}
.work-body h3 {
  font-size: 14px;
  font-weight: 700;
  line-height: 1.5;
  margin-bottom: 10px;
}
.work-body p {
  font-size: 12.5px;
  color: var(--gray1);
  line-height: 1.85;
}
.work-tags { display: flex; gap: 6px; flex-wrap: wrap; margin-top: 14px; }
.work-tag {
  font-size: 10px;
  letter-spacing: 0.06em;
  padding: 3px 9px;
  border: 1px solid var(--border);
  color: var(--gray2);
}

/* ─── RESPONSIVE ─── */
@media (max-width: 900px) {
  .works-grid { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 480px) {
  .works-grid { grid-template-columns: 1fr; }
}