/* ── 다크 테마 (login, index 페이지) ── */
:root {
  --bg: #0d1117;
  --panel: #161b22;
  --border: #30363d;
  --accent: #58a6ff;
  --text: #e6edf3;
  --text-sub: #8b949e;
}

body {
  background: var(--bg);
  color: var(--text);
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
}

/* 배경 그리드 */
body::before {
  content: '';
  position: fixed;
  inset: 0;
  background-image:
    linear-gradient(rgba(88,166,255,0.04) 1px, transparent 1px),
    linear-gradient(90deg, rgba(88,166,255,0.04) 1px, transparent 1px);
  background-size: 40px 40px;
  pointer-events: none;
}

/* ── 로고 ── */
.logo-wrap { text-align: center; margin-bottom: 32px; }
.logo-icon {
  font-size: 40px; display: block; margin-bottom: 12px;
  filter: drop-shadow(0 0 20px rgba(88,166,255,0.4));
}
.logo { font-size: 26px; font-weight: 900; color: var(--accent); }
.logo span { color: var(--text-sub); font-weight: 300; }
.page-title { font-size: 13px; color: var(--text-sub); margin-top: 6px; }

/* ── 카드 ── */
.dark-card {
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 32px;
}
.dark-card h2 { font-size: 18px; font-weight: 700; margin-bottom: 24px; }

/* ── 폼 ── */
.form-group { margin-bottom: 16px; }
.form-group label { display: block; font-size: 12px; color: var(--text-sub); margin-bottom: 6px; }
.form-group input {
  width: 100%; padding: 10px 14px;
  background: var(--bg); border: 1px solid var(--border);
  border-radius: 8px; color: var(--text);
  font-size: 14px; font-family: inherit; outline: none;
  transition: border-color 0.2s;
}
.form-group input:focus { border-color: var(--accent); }

.btn-login {
  width: 100%; padding: 12px;
  background: var(--accent); color: #0d1117;
  border: none; border-radius: 8px;
  font-size: 15px; font-weight: 700; font-family: inherit;
  cursor: pointer; margin-top: 8px; transition: opacity 0.2s;
}
.btn-login:hover { opacity: 0.85; }

/* ── 상단 바 (index) ── */
.top-bar {
  display: flex; justify-content: flex-end;
  align-items: center; gap: 12px; margin-bottom: 16px;
}
.user-info { font-size: 13px; color: var(--text-sub); }
.user-info strong { color: var(--accent); }
.role-badge-top {
  font-size: 11px; padding: 2px 10px; border-radius: 12px;
  border: 1px solid rgba(88,166,255,0.3);
  color: var(--accent); background: rgba(88,166,255,0.08);
}
.btn-logout {
  font-size: 13px; color: var(--text-sub);
  background: none; border: 1px solid var(--border);
  padding: 5px 12px; border-radius: 8px;
  cursor: pointer; font-family: inherit; transition: all 0.2s;
}
.btn-logout:hover { border-color: #f85149; color: #f85149; }

/* ── 프로젝트 카드 ── */
.card-grid {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 16px; margin-bottom: 40px;
}
.project-card {
  width: 200px; flex-shrink: 0;
  background: var(--panel); border: 1px solid var(--border);
  border-radius: 12px; padding: 28px 20px;
  cursor: pointer; text-decoration: none; color: var(--text);
  transition: all 0.2s; display: flex; flex-direction: column;
  align-items: center; gap: 12px; position: relative; overflow: hidden;
}
.project-card::before {
  content: ''; position: absolute; top: 0; left: 0; right: 0;
  height: 2px; background: var(--accent-color, var(--accent));
  opacity: 0; transition: opacity 0.2s;
}
.project-card:hover {
  border-color: var(--accent-color, var(--accent));
  transform: translateY(-3px);
  box-shadow: 0 8px 24px rgba(0,0,0,0.3);
}
.project-card:hover::before { opacity: 1; }
.card-icon { font-size: 32px; }
.card-title { font-size: 15px; font-weight: 700; }
.card-desc { font-size: 11px; color: var(--text-sub); line-height: 1.6; text-align: center; }
.card-badge {
  font-size: 10px; padding: 2px 8px;
  border-radius: 20px; border: 1px solid currentColor; opacity: 0.6;
}

/* ── 플랫폼 관리자 전용 ── */
.platform-divider { border: none; border-top: 1px solid var(--border); margin: 0 0 24px 0; }
.section-label {
  font-size: 11px; color: var(--text-sub); font-weight: 500;
  letter-spacing: 1px; text-transform: uppercase;
  margin-bottom: 16px; text-align: left;
}

.footer { font-size: 11px; color: var(--text-sub); margin-top: 20px; }
.footer span { color: var(--accent); }