* {
  box-sizing: border-box;
}

body {
  margin: 0;
  font-family: "Pretendard", "Noto Sans KR", Arial, sans-serif;
  background: #f4f7fb;
  color: #162033;
}

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

.page-wrap {
  min-height: 100vh;
}

.hero,
.login-page {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 40px 20px;
}

.hero-card,
.login-card {
  width: 100%;
  max-width: 460px;
  background: #ffffff;
  border-radius: 24px;
  padding: 42px;
  box-shadow: 0 20px 50px rgba(15, 35, 80, 0.12);
}

.eyebrow {
  margin: 0 0 10px;
  font-size: 13px;
  font-weight: 800;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: #246bfe;
}

h1 {
  margin: 0 0 14px;
  font-size: 30px;
  line-height: 1.3;
}

p {
  line-height: 1.6;
}

.hero-actions {
  margin-top: 28px;
}

.btn-primary,
.btn-secondary {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 46px;
  padding: 0 22px;
  border-radius: 12px;
  font-weight: 800;
  border: 0;
  cursor: pointer;
}

.btn-primary {
  background: #246bfe;
  color: #ffffff;
}

.btn-secondary {
  background: #edf2ff;
  color: #246bfe;
}

.full {
  width: 100%;
}

.login-desc {
  margin-bottom: 28px;
  color: #667085;
}

.login-form {
  display: grid;
  gap: 16px;
}

.login-form label {
  display: grid;
  gap: 8px;
  font-size: 14px;
  font-weight: 700;
}

.login-form input {
  width: 100%;
  height: 48px;
  border: 1px solid #d7deea;
  border-radius: 12px;
  padding: 0 14px;
  font-size: 15px;
}

.login-form input:focus {
  outline: none;
  border-color: #246bfe;
  box-shadow: 0 0 0 4px rgba(36, 107, 254, 0.12);
}

.text-link {
  display: inline-block;
  margin-top: 22px;
  font-size: 14px;
  color: #667085;
}

.flash-wrap {
  position: fixed;
  top: 18px;
  left: 50%;
  z-index: 1000;
  transform: translateX(-50%);
  width: calc(100% - 40px);
  max-width: 480px;
}

.flash {
  padding: 14px 16px;
  border-radius: 12px;
  font-weight: 700;
  background: #ffffff;
  box-shadow: 0 10px 30px rgba(15, 35, 80, 0.16);
}

.flash-success {
  color: #087443;
}

.flash-danger {
  color: #c02626;
}

.flash-warning {
  color: #b45309;
}

.flash-info {
  color: #2563eb;
}

.admin-page {
  min-height: 100vh;
  display: flex;
}

.admin-sidebar {
  width: 260px;
  padding: 28px 20px;
  background: #111827;
  color: #ffffff;
}

.admin-sidebar h2 {
  margin: 0 0 30px;
  font-size: 22px;
}

.admin-sidebar nav {
  display: grid;
  gap: 8px;
}

.admin-sidebar nav a {
  padding: 13px 14px;
  border-radius: 12px;
  color: #cbd5e1;
  font-weight: 700;
}

.admin-sidebar nav a.active,
.admin-sidebar nav a:hover {
  background: #246bfe;
  color: #ffffff;
}

.admin-main {
  flex: 1;
  padding: 34px;
}

.admin-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 28px;
}

.dashboard-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 18px;
}

.stat-card {
  background: #ffffff;
  border-radius: 20px;
  padding: 26px;
  box-shadow: 0 12px 35px rgba(15, 35, 80, 0.08);
}

.stat-card span {
  display: block;
  margin-bottom: 12px;
  color: #667085;
  font-weight: 700;
}

.stat-card strong {
  font-size: 30px;
}

@media (max-width: 768px) {
  .admin-page {
    display: block;
  }

  .admin-sidebar {
    width: 100%;
  }

  .dashboard-grid {
    grid-template-columns: 1fr;
  }

  .admin-header {
    align-items: flex-start;
    gap: 16px;
    flex-direction: column;
  }
}