:root {
  --app-blue: #4ca7ff;
  --app-green: #5ecf9a;
  --app-bg: #f4fbff;
  --app-text: #1f2937;
}

html {
  position: relative;
  min-height: 100%;
  font-size: 15px;
}

body {
  margin-bottom: 70px;
  font-family: "Cairo", sans-serif;
  background: linear-gradient(150deg, #eef8ff 0%, #f3fff9 100%);
  color: var(--app-text);
}

.app-navbar {
  position: relative;
  z-index: 1030;
  background: rgba(255, 255, 255, 0.85);
  backdrop-filter: blur(8px);
  border-bottom: 1px solid #dbeafe;
}

.app-navbar .dropdown-menu {
  z-index: 1031;
}

.navbar .nav-link,
.navbar-brand,
.btn,
.feature-card,
.gateway-card,
.table-card,
.form-card {
  transition: all .25s ease;
}

.navbar .nav-link {
  color: #334155;
  font-weight: 600;
}

.navbar .nav-link:hover {
  color: var(--app-blue);
}

.hero-card,
.feature-card,
.gateway-card,
.table-card,
.form-card {
  background: #ffffff;
  border: 1px solid #e6f0ff;
  border-radius: 22px;
  padding: 1.5rem;
}

.hero-icon,
.feature-icon,
.gateway-icon {
  color: var(--app-blue);
}

.hero-icon {
  font-size: 3.5rem;
}

.feature-icon {
  font-size: 2.4rem;
}

.gateway-icon-wrap {
  width: 72px;
  height: 72px;
  border-radius: 20px;
  display: grid;
  place-items: center;
  background: linear-gradient(140deg, #e0f2ff, #d5ffe7);
}

.gateway-icon {
  font-size: 2rem;
}

.feature-card:hover,
.gateway-card:hover,
.hero-card:hover {
  transform: translateY(-3px);
  border-color: #c7e3ff;
}

.btn-primary {
  background: linear-gradient(135deg, var(--app-blue), var(--app-green));
  border: none;
}

.btn-outline-primary {
  border-color: var(--app-blue);
  color: var(--app-blue);
}

.btn-outline-primary:hover {
  background-color: #e6f3ff;
  color: #0f548d;
}

.form-control:focus,
.form-check-input:focus,
.btn:focus,
.btn:active:focus {
  box-shadow: 0 0 0 0.15rem rgba(76, 167, 255, 0.28);
  border-color: #9cd1ff;
}

.footer {
  position: absolute;
  bottom: 0;
  width: 100%;
  line-height: 60px;
  border-top: 1px solid #dbeafe;
  background: rgba(255, 255, 255, 0.7);
}

/* ===== Customer payment method selection ===== */
.pay-summary {
  background: linear-gradient(140deg, #eef8ff, #f1fff9);
  border: 1px solid #e6f0ff;
  border-radius: 18px;
  padding: 1.25rem 1.5rem;
}

.pay-summary .amount {
  font-size: 1.6rem;
  font-weight: 700;
  color: #0f548d;
}

.pay-methods {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(150px, 1fr));
  gap: .75rem;
}

.pay-method {
  position: relative;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: .5rem;
  text-align: center;
  cursor: pointer;
  padding: 1.1rem .75rem;
  min-height: 110px;
  background: #fff;
  border: 2px solid #e6f0ff;
  border-radius: 16px;
  transition: all .2s ease;
  user-select: none;
}

.pay-method:hover {
  border-color: #c7e3ff;
  transform: translateY(-2px);
  box-shadow: 0 6px 18px rgba(76, 167, 255, .12);
}

.pay-method .pm-icon {
  font-size: 1.9rem;
  color: var(--app-blue);
  line-height: 1;
}

.pay-method .pm-name {
  font-size: .85rem;
  font-weight: 600;
  color: #334155;
}

.pay-method .pm-check {
  position: absolute;
  top: .5rem;
  inset-inline-end: .5rem;
  width: 20px;
  height: 20px;
  border-radius: 50%;
  display: grid;
  place-items: center;
  background: var(--app-blue);
  color: #fff;
  font-size: .7rem;
  opacity: 0;
  transform: scale(.6);
  transition: all .2s ease;
}

.btn-check:checked + .pay-method {
  border-color: var(--app-blue);
  background: linear-gradient(140deg, #f0f8ff, #f1fff9);
  box-shadow: 0 6px 18px rgba(76, 167, 255, .18);
}

.btn-check:checked + .pay-method .pm-check {
  opacity: 1;
  transform: scale(1);
}

.btn-check:focus-visible + .pay-method {
  box-shadow: 0 0 0 0.2rem rgba(76, 167, 255, .3);
}

.pay-method .pm-knet { color: #6c2c8f; }
.pay-method .pm-cc { color: #1a56db; }
.pay-method .pm-samsung { color: #1428a0; }
.pay-method .pm-apple { color: #111827; }