:root {
  --sm-primary: #0f766e;
  --sm-primary-dark: #134e4a;
  --sm-teal: #14b8a6;
  --sm-bg: #f1f5f9;
  --sm-card: #ffffff;
  --sm-border: #e2e8f0;
  --sm-text: #0f172a;
  --sm-muted: #64748b;
  --sm-radius: 14px;
  --sm-shadow: 0 6px 24px rgba(15, 23, 42, .08);
}

body {
  font-family: system-ui, -apple-system, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  background-color: var(--sm-bg);
  color: var(--sm-text);
}

.app-hero {
  background: linear-gradient(135deg, var(--sm-primary-dark) 0%, var(--sm-primary) 55%, var(--sm-teal) 130%);
  color: #fff;
  border-radius: var(--sm-radius);
  box-shadow: var(--sm-shadow);
  padding: 1.6rem 1.5rem;
  margin-bottom: 1.25rem;
}

.app-hero h1,
.app-hero h3 {
  font-weight: 700;
  letter-spacing: -.02em;
  margin-bottom: .25rem;
}

.app-hero .lead,
.app-hero p {
  color: rgba(255, 255, 255, .85);
  margin-bottom: 0;
}

.card {
  border: 1px solid var(--sm-border);
  border-radius: var(--sm-radius);
  box-shadow: var(--sm-shadow);
}

.card-title {
  font-weight: 700;
  letter-spacing: -.01em;
}

.btn {
  border-radius: 10px;
  font-weight: 600;
}

.btn-primary {
  --bs-btn-bg: var(--sm-primary);
  --bs-btn-border-color: var(--sm-primary);
  --bs-btn-hover-bg: var(--sm-primary-dark);
  --bs-btn-hover-border-color: var(--sm-primary-dark);
  --bs-btn-active-bg: var(--sm-primary-dark);
  --bs-btn-active-border-color: var(--sm-primary-dark);
}

#sidebar {
  height: 100%;
  width: 250px;
  position: fixed;
  top: 0;
  left: -250px;
  background: linear-gradient(180deg, var(--sm-primary-dark), var(--sm-primary));
  padding-top: 60px;
  transition: left .3s ease;
  z-index: 1030;
}

#sidebar a {
  padding: 12px 20px;
  text-decoration: none;
  font-size: 1.05rem;
  color: rgba(255, 255, 255, .75);
  display: block;
  transition: background .2s ease, color .2s ease;
}

#sidebar a:hover {
  color: #fff;
  background: rgba(255, 255, 255, .08);
}

#sidebar a.active {
  color: #ffffff;
  background: rgba(255, 255, 255, .1);
}

#sidebar .sidebar-section {
  padding: 10px 20px;
  font-size: 14px;
  text-transform: uppercase;
  color: rgba(255, 255, 255, .45);
  font-weight: 600;
  letter-spacing: .04em;
}

#menu-btn {
  position: fixed;
  top: 18px;
  left: 18px;
  z-index: 1040;
  width: 46px;
  height: 46px;
  border: none;
  border-radius: 12px;
  background: var(--sm-primary);
  color: #fff;
  font-size: 22px;
  line-height: 1;
  cursor: pointer;
  box-shadow: var(--sm-shadow);
  display: flex;
  align-items: center;
  justify-content: center;
  transition: transform .15s ease, background .2s ease;
}

#menu-btn:hover {
  background: var(--sm-primary-dark);
  transform: scale(1.05);
}

#content {
  transition: margin-left .3s ease;
  padding: 16px;
}

#content img {
  max-width: 100%;
  height: auto;
}

#content img.button-img {
  width: auto;
  height: 30px;
  cursor: pointer;
  transition: transform .15s ease;
}

#content img.button-img:hover {
  transform: scale(1.12);
}

.table {
  --bs-table-hover-bg: #f8fafc;
  margin-bottom: 0;
}

.table thead th {
  position: sticky;
  top: 0;
  z-index: 1;
  background: #eef2f7;
  color: #334155;
  font-size: .78rem;
  text-transform: uppercase;
  letter-spacing: .04em;
  white-space: nowrap;
  border-bottom: 2px solid var(--sm-border) !important;
}

.table td {
  vertical-align: middle;
}

.check {
  color: #16a34a;
  font-weight: 700;
}

.cross {
  color: #dc2626;
  font-weight: 700;
}

.pagination {
  margin: 20px 0;
  justify-content: center;
  gap: 4px;
}

.pagination .page-link {
  border: none;
  color: var(--sm-primary);
  font-weight: 600;
  padding: .45rem .85rem;
  border-radius: 10px !important;
  transition: background .2s ease;
}

.pagination .page-link:hover {
  background: rgba(15, 118, 110, .12);
}

.pagination .page-item.active .page-link {
  background: var(--sm-primary);
  color: #fff;
  box-shadow: 0 4px 12px rgba(15, 118, 110, .35);
}

.pagination .ellipsis .page-link {
  pointer-events: none;
  background: transparent;
  color: var(--sm-muted);
}

footer.container {
  color: var(--sm-muted);
}

footer.container a {
  color: var(--sm-muted);
  text-decoration: none;
}

footer.container a:hover {
  color: var(--sm-primary);
}

.login-page {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 1.5rem;
  background:
    radial-gradient(circle at 15% 20%, rgba(20, 184, 166, .35) 0%, transparent 45%),
    radial-gradient(circle at 85% 85%, rgba(6, 95, 70, .55) 0%, transparent 50%),
    linear-gradient(135deg, #134e4a, #0f766e);
}

.login-card {
  width: 100%;
  max-width: 430px;
  border: none;
  border-radius: 22px;
  overflow: hidden;
  box-shadow: 0 24px 60px rgba(0, 0, 0, .35);
}

.login-card .card-body {
  padding: 2.25rem;
}

.login-brand {
  width: 64px;
  height: 64px;
  border-radius: 18px;
  background: linear-gradient(135deg, var(--sm-primary), var(--sm-teal));
  color: #fff;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 30px;
  margin: 0 auto 1rem;
  box-shadow: 0 10px 24px rgba(15, 118, 110, .35);
}

.form-label {
  font-size: .86rem;
  font-weight: 600;
  color: #334155;
}

.form-control:focus,
.form-select:focus {
  border-color: var(--sm-teal);
  box-shadow: 0 0 0 .25rem rgba(20, 184, 166, .18);
}

.photo-thumb {
  border-radius: 12px;
  border: 1px solid var(--sm-border);
  box-shadow: var(--sm-shadow);
}