* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

body {
  font-family: 'Inter', system-ui, sans-serif;
  background: linear-gradient(135deg, #0a0f1c 0%, #1a2338 100%);
  color: #e2e8f0;
  min-height: 100vh;
  transition: background 0.4s;
}

/* Glassmorphism */
.glass {
  background: rgba(255, 255, 255, 0.07);
  backdrop-filter: blur(16px);
  border: 1px solid rgba(255, 255, 255, 0.12);
  box-shadow: 0 8px 32px rgba(0, 0, 0, 0.5);
}

/* ==================== BUTTONS ==================== */
.btn-primary {
  background: linear-gradient(90deg, #25D366, #10b981);
  color: white;
  padding: 16px 38px;
  border: none;
  border-radius: 9999px;
  font-size: 1.1rem;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
  box-shadow: 0 10px 30px rgba(37, 211, 102, 0.35);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  min-width: 160px;
}

.btn-primary:hover {
  transform: translateY(-5px);
  box-shadow: 0 20px 40px rgba(37, 211, 102, 0.5);
}

.btn-primary:active {
  transform: scale(0.96);
}

.btn-primary:disabled {
  opacity: 0.65;
  cursor: not-allowed;
  transform: none;
}

/* Secondary Button */
.btn-secondary {
  background: transparent;
  color: white;
  border: 2px solid rgba(255,255,255,0.3);
  padding: 16px 38px;
  border-radius: 9999px;
  font-size: 1.1rem;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.3s;
}

.btn-secondary:hover {
  border-color: #25D366;
  color: #25D366;
  background: rgba(37, 211, 102, 0.1);
}

/* Small Buttons */
.btn-small {
  padding: 10px 20px;
  font-size: 0.95rem;
}

.btn-approve {
  background: #10b981;
  color: white;
  border: none;
  padding: 10px 22px;
  border-radius: 9999px;
  cursor: pointer;
  font-weight: 600;
  transition: 0.3s;
}

.btn-approve:hover { background: #059669; }

.btn-reject {
  background: #ef4444;
  color: white;
  border: none;
  padding: 10px 22px;
  border-radius: 9999px;
  cursor: pointer;
  font-weight: 600;
  transition: 0.3s;
}

.btn-reject:hover { background: #dc2626; }

/* Spinner */
.spinner {
  width: 20px;
  height: 20px;
  border: 3px solid rgba(255,255,255,0.3);
  border-top: 3px solid #fff;
  border-radius: 50%;
  animation: spin 1s linear infinite;
}

@keyframes spin {
  to { transform: rotate(360deg); }
}

/* Layout */
nav {
  position: fixed;
  top: 0;
  width: 100%;
  padding: 1.4rem 7%;
  display: flex;
  justify-content: space-between;
  align-items: center;
  background: rgba(10, 15, 28, 0.92);
  backdrop-filter: blur(12px);
  z-index: 1000;
}

.logo {
  font-size: 2rem;
  font-weight: 700;
  background: linear-gradient(90deg, #25D366, #10b981);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  display: flex;
  align-items: center;
  gap: 10px;
}

.hero {
  min-height: 100vh;
  display: flex;
  align-items: center;
  padding: 0 7%;
  gap: 8%;
}

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

.auth-card {
  width: 100%;
  max-width: 460px;
  padding: 55px 45px;
  border-radius: 28px;
}

.input-group {
  margin-bottom: 22px;
}

.input-group label {
  display: block;
  margin-bottom: 8px;
  font-size: 0.98rem;
  color: #cbd5e1;
}

.input-group input {
  width: 100%;
  padding: 16px 20px;
  background: rgba(15, 23, 42, 0.7);
  border: 1px solid rgba(148, 163, 184, 0.25);
  border-radius: 14px;
  color: white;
  font-size: 1.05rem;
}

.input-group input:focus {
  border-color: #25D366;
  box-shadow: 0 0 0 4px rgba(37, 211, 102, 0.15);
  outline: none;
}

.full-width {
  width: 100%;
  padding: 16px;
  font-size: 1.15rem;
  margin-top: 10px;
}

/* Dashboard */
.dashboard {
  display: flex;
  min-height: 100vh;
}

.sidebar {
  width: 300px;
  background: rgba(15, 23, 42, 0.95);
  backdrop-filter: blur(12px);
  padding: 35px 25px;
  border-right: 1px solid rgba(255,