:root {
  --sf-navy: #0b2545;
  --sf-teal: #0f9b8e;
  --sf-teal-dark: #0b7d72;
  --sf-amber: #f2a541;
  --sf-bg: #f4f7fb;
  --sf-card: #ffffff;
  --sf-text: #1c2b3a;
  --sf-muted: #6b7c93;
  --sf-border: #e1e8f0;
}

* { box-sizing: border-box; }

body {
  font-family: 'Hind Siliguri', 'Poppins', system-ui, -apple-system, sans-serif;
  background: var(--sf-bg);
  color: var(--sf-text);
}

.sf-hero {
  background: linear-gradient(135deg, var(--sf-navy) 0%, var(--sf-teal-dark) 100%);
  color: #fff;
  padding: 3.5rem 1rem 4.5rem;
  text-align: center;
  position: relative;
}

.sf-hero .sf-emoji { font-size: 2.5rem; }

.sf-hero h1 {
  font-weight: 700;
  font-size: 2.1rem;
  margin: 0.4rem 0 0.2rem;
}

.sf-hero h2 {
  font-weight: 400;
  font-size: 1.15rem;
  opacity: 0.9;
  margin: 0;
}

.sf-hero .sf-meta {
  margin-top: 1.4rem;
  display: flex;
  flex-wrap: wrap;
  gap: 0.6rem;
  justify-content: center;
}

.sf-hero .sf-meta span {
  background: rgba(255,255,255,0.12);
  border: 1px solid rgba(255,255,255,0.25);
  border-radius: 999px;
  padding: 0.4rem 1rem;
  font-size: 0.9rem;
}

.sf-wrap {
  max-width: 860px;
  margin: 2rem auto 3rem;
  padding: 0 1rem;
}

.sf-card {
  background: var(--sf-card);
  border-radius: 14px;
  box-shadow: 0 10px 30px rgba(11, 37, 69, 0.08);
  padding: 2rem;
  margin-bottom: 1.5rem;
  border: 1px solid var(--sf-border);
}

.sf-card h3 {
  color: var(--sf-navy);
  font-weight: 700;
  font-size: 1.25rem;
  margin-bottom: 1.25rem;
  padding-bottom: 0.6rem;
  border-bottom: 2px solid var(--sf-teal);
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.sf-info-card {
  background: linear-gradient(180deg, #fff, #f8fbfd);
}

.sf-info-card ul { margin-bottom: 0.5rem; }
.sf-info-card li { margin-bottom: 0.3rem; }

.sf-label {
  font-weight: 600;
  color: var(--sf-text);
  margin-bottom: 0.25rem;
}

.sf-label .sf-req { color: #dc3545; margin-left: 0.15rem; }
.sf-label small { display: block; font-weight: 400; color: var(--sf-muted); font-size: 0.82rem; }

.form-control, .form-select {
  border-radius: 8px;
  border: 1px solid #cfd9e4;
  padding: 0.6rem 0.85rem;
}

.form-control:focus, .form-select:focus {
  border-color: var(--sf-teal);
  box-shadow: 0 0 0 0.2rem rgba(15, 155, 142, 0.15);
}

.sf-btn-submit {
  background: var(--sf-teal);
  border: none;
  color: #fff;
  font-weight: 600;
  padding: 0.75rem 2.2rem;
  border-radius: 999px;
  transition: background 0.15s ease, transform 0.1s ease;
}

.sf-btn-submit:hover { background: var(--sf-teal-dark); color: #fff; transform: translateY(-1px); }

.sf-footer {
  text-align: center;
  color: var(--sf-muted);
  font-size: 0.85rem;
  padding: 1.5rem 1rem 2.5rem;
}

.sf-team-fields { display: none; }
.sf-team-fields.active { display: block; }

.sf-badge-required {
  background: #fdecea;
  color: #dc3545;
  border-radius: 6px;
  padding: 0.15rem 0.5rem;
  font-size: 0.75rem;
}

/* Admin dashboard */
.sf-admin-sidebar {
  background: var(--sf-navy);
  min-height: 100vh;
  color: #fff;
}

.sf-admin-sidebar a {
  color: rgba(255,255,255,0.8);
  text-decoration: none;
  display: block;
  padding: 0.75rem 1.25rem;
  border-radius: 8px;
  margin: 0.15rem 0.75rem;
}

.sf-admin-sidebar a:hover, .sf-admin-sidebar a.active {
  background: rgba(255,255,255,0.12);
  color: #fff;
}

.sf-stat-card {
  background: #fff;
  border-radius: 12px;
  padding: 1.25rem 1.5rem;
  border: 1px solid var(--sf-border);
  box-shadow: 0 4px 14px rgba(11,37,69,0.05);
}

.sf-stat-card .sf-stat-value {
  font-size: 1.9rem;
  font-weight: 700;
  color: var(--sf-navy);
}

.sf-stat-card .sf-stat-label {
  color: var(--sf-muted);
  font-size: 0.88rem;
}

.sf-login-wrap {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  background: linear-gradient(135deg, var(--sf-navy) 0%, var(--sf-teal-dark) 100%);
}

.sf-login-card {
  background: #fff;
  border-radius: 14px;
  padding: 2.5rem;
  width: 100%;
  max-width: 400px;
  box-shadow: 0 20px 50px rgba(0,0,0,0.25);
}