/* ==========================================================================
   ZENTRAHOST CLOUD - Premium UI Components
   ========================================================================== */

/* Header & Navigation */
.site-header {
  position: sticky;
  top: 0;
  z-index: 1000;
  height: var(--header-height);
  background: rgba(8, 13, 26, 0.88);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-bottom: 1px solid var(--border-subtle);
  transition: all 0.3s ease;
}

.site-header.scrolled {
  background: rgba(5, 8, 17, 0.95);
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.6);
}

.nav-container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 100%;
}

.brand-logo {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  font-weight: 800;
  font-size: 1.35rem;
  letter-spacing: -0.03em;
  color: var(--text-bright);
}

.brand-logo svg {
  width: 36px;
  height: 36px;
  filter: drop-shadow(0 0 10px var(--accent-cyan));
}

.brand-logo .cloud-tag {
  font-size: 0.75rem;
  background: linear-gradient(135deg, var(--primary-blue), var(--accent-cyan));
  color: #000;
  padding: 0.15rem 0.5rem;
  border-radius: 4px;
  font-weight: 700;
  margin-left: 0.2rem;
  text-transform: uppercase;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 1.75rem;
  list-style: none;
}

.nav-item {
  position: relative;
}

.nav-link {
  color: var(--text-muted);
  font-size: 0.95rem;
  font-weight: 500;
  padding: 0.5rem 0;
  display: flex;
  align-items: center;
  gap: 0.35rem;
}

.nav-link:hover, .nav-link.active {
  color: var(--accent-cyan);
}

/* Dropdown Menu */
.nav-dropdown {
  position: absolute;
  top: 100%;
  left: 0;
  width: 260px;
  background: var(--bg-surface-elevated);
  border: 1px solid var(--border-card);
  border-radius: var(--radius-md);
  padding: 0.75rem;
  box-shadow: var(--shadow-lg);
  opacity: 0;
  visibility: hidden;
  transform: translateY(10px);
  transition: all 0.2s ease;
  z-index: 100;
}

.nav-item:hover .nav-dropdown {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}

.dropdown-link {
  display: flex;
  align-items: flex-start;
  gap: 0.75rem;
  padding: 0.65rem;
  border-radius: var(--radius-sm);
  color: var(--text-main);
}

.dropdown-link:hover {
  background: rgba(0, 240, 255, 0.08);
  color: var(--accent-cyan);
}

.dropdown-link svg {
  width: 20px;
  height: 20px;
  color: var(--accent-cyan);
  flex-shrink: 0;
  margin-top: 2px;
}

.dropdown-link-title {
  font-weight: 600;
  font-size: 0.9rem;
}

.dropdown-link-desc {
  font-size: 0.75rem;
  color: var(--text-dim);
}

/* Nav Actions */
.nav-actions {
  display: flex;
  align-items: center;
  gap: 1rem;
}

/* Cart Button */
.btn-cart-nav {
  position: relative;
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid var(--border-subtle);
  color: var(--text-main);
  padding: 0.6rem 0.9rem;
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  gap: 0.5rem;
  cursor: pointer;
  transition: all 0.2s ease;
}

.btn-cart-nav:hover {
  background: rgba(0, 240, 255, 0.1);
  border-color: var(--accent-cyan);
}

.cart-badge-count {
  background: var(--accent-cyan);
  color: #000;
  font-size: 0.75rem;
  font-weight: 700;
  min-width: 18px;
  height: 18px;
  border-radius: 9px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0 4px;
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  padding: 0.7rem 1.4rem;
  border-radius: var(--radius-md);
  font-weight: 600;
  font-size: 0.95rem;
  cursor: pointer;
  transition: all 0.25s ease;
  border: 1px solid transparent;
  text-align: center;
}

.btn-primary {
  background: linear-gradient(135deg, var(--primary-blue), #0052cc);
  color: #FFFFFF;
  box-shadow: 0 4px 15px var(--primary-blue-glow);
}

.btn-primary:hover {
  background: linear-gradient(135deg, var(--primary-blue-hover), var(--primary-blue));
  box-shadow: 0 6px 22px rgba(0, 102, 255, 0.5);
  transform: translateY(-2px);
}

.btn-cyan {
  background: var(--accent-cyan);
  color: #050811;
  font-weight: 700;
  box-shadow: 0 4px 15px var(--accent-cyan-glow);
}

.btn-cyan:hover {
  background: #2ef3ff;
  box-shadow: 0 6px 25px rgba(0, 240, 255, 0.6);
  transform: translateY(-2px);
}

.btn-outline {
  background: rgba(255, 255, 255, 0.04);
  color: var(--text-main);
  border-color: var(--border-card);
}

.btn-outline:hover {
  background: rgba(0, 240, 255, 0.08);
  border-color: var(--accent-cyan);
  color: var(--accent-cyan);
}

.btn-sm {
  padding: 0.45rem 0.9rem;
  font-size: 0.85rem;
}

.btn-lg {
  padding: 0.9rem 2rem;
  font-size: 1.05rem;
}

.btn-block {
  width: 100%;
}

/* Billing Cycle Switcher */
.billing-switcher-container {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 1rem;
  margin: 2rem 0;
}

.billing-switch {
  display: inline-flex;
  background: var(--bg-surface-elevated);
  padding: 0.35rem;
  border-radius: 30px;
  border: 1px solid var(--border-card);
}

.switch-option {
  padding: 0.55rem 1.4rem;
  border-radius: 25px;
  font-size: 0.9rem;
  font-weight: 600;
  cursor: pointer;
  color: var(--text-muted);
  transition: all 0.25s ease;
  user-select: none;
}

.switch-option.active {
  background: linear-gradient(135deg, var(--primary-blue), #004ecc);
  color: #FFF;
  box-shadow: 0 2px 10px var(--primary-blue-glow);
}

.discount-pill {
  background: rgba(0, 240, 255, 0.15);
  color: var(--accent-cyan);
  border: 1px solid rgba(0, 240, 255, 0.3);
  font-size: 0.75rem;
  font-weight: 700;
  padding: 0.2rem 0.6rem;
  border-radius: 12px;
}

/* Server Pricing Cards Grid */
.server-cards-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
  gap: 1.75rem;
  margin-top: 2.5rem;
}

/* Server Card */
.server-card {
  position: relative;
  background: var(--bg-surface);
  border: 1px solid var(--border-card);
  border-radius: var(--radius-lg);
  padding: 2rem;
  display: flex;
  flex-direction: column;
  transition: all 0.3s ease;
  overflow: hidden;
}

.server-card:hover {
  border-color: var(--accent-cyan);
  box-shadow: var(--shadow-glow-cyan);
  transform: translateY(-5px);
}

.server-card.featured {
  border-color: var(--primary-blue);
  background: linear-gradient(180deg, rgba(0, 102, 255, 0.08) 0%, var(--bg-surface) 100%);
  box-shadow: 0 0 30px rgba(0, 102, 255, 0.2);
}

.server-card.featured::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: linear-gradient(90deg, var(--primary-blue), var(--accent-cyan));
}

.badge-tag {
  position: absolute;
  top: 1.25rem;
  right: 1.25rem;
  background: rgba(0, 240, 255, 0.12);
  color: var(--accent-cyan);
  border: 1px solid rgba(0, 240, 255, 0.3);
  font-size: 0.75rem;
  font-weight: 700;
  padding: 0.25rem 0.65rem;
  border-radius: 20px;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.badge-tag.highlight {
  background: linear-gradient(135deg, var(--primary-blue), var(--accent-cyan));
  color: #000;
}

.card-title {
  font-size: 1.4rem;
  font-weight: 700;
  color: var(--text-bright);
  margin-bottom: 0.5rem;
}

.card-ram-highlight {
  display: flex;
  align-items: baseline;
  gap: 0.4rem;
  margin: 1rem 0;
}

.ram-number {
  font-family: var(--font-mono);
  font-size: 2.8rem;
  font-weight: 800;
  color: var(--accent-cyan);
  line-height: 1;
}

.ram-label {
  font-size: 1.1rem;
  font-weight: 600;
  color: var(--text-muted);
}

.card-pricing-block {
  margin: 1.25rem 0;
  padding: 1.2rem;
  background: rgba(0, 0, 0, 0.25);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
}

.price-main {
  font-family: var(--font-mono);
  font-size: 1.85rem;
  font-weight: 700;
  color: #FFFFFF;
}

.price-cycle {
  font-size: 0.85rem;
  color: var(--text-muted);
}

.price-alternative {
  font-size: 0.8rem;
  color: var(--text-dim);
  margin-top: 0.25rem;
}

/* Specs Pills List */
.specs-pills-list {
  display: flex;
  flex-direction: column;
  gap: 0.7rem;
  margin: 1.5rem 0;
  list-style: none;
}

.spec-item {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  font-size: 0.9rem;
  color: var(--text-main);
}

.spec-item svg {
  width: 18px;
  height: 18px;
  color: var(--accent-cyan);
  flex-shrink: 0;
}

/* Quantity and Action controls */
.card-actions-wrapper {
  margin-top: auto;
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}

.qty-control {
  display: flex;
  align-items: center;
  justify-content: space-between;
  background: var(--bg-surface-elevated);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  padding: 0.3rem 0.6rem;
}

.qty-btn {
  background: rgba(255, 255, 255, 0.08);
  border: none;
  color: #FFF;
  width: 28px;
  height: 28px;
  border-radius: 4px;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
}

.qty-btn:hover {
  background: var(--accent-cyan);
  color: #000;
}

.qty-value {
  font-family: var(--font-mono);
  font-weight: 600;
  font-size: 0.95rem;
}

/* Form Controls */
.form-group {
  margin-bottom: 1.25rem;
}

.form-label {
  display: block;
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--text-muted);
  margin-bottom: 0.45rem;
}

.form-control {
  width: 100%;
  padding: 0.75rem 1rem;
  background: var(--bg-surface-elevated);
  border: 1px solid var(--border-card);
  border-radius: var(--radius-md);
  color: #FFFFFF;
  font-size: 0.95rem;
  transition: border-color 0.2s, box-shadow 0.2s;
}

.form-control:focus {
  border-color: var(--accent-cyan);
  box-shadow: 0 0 10px rgba(0, 240, 255, 0.25);
}

/* Wompi Badge & Security */
.wompi-security-box {
  display: flex;
  align-items: center;
  gap: 1rem;
  padding: 1rem;
  background: rgba(0, 102, 255, 0.08);
  border: 1px solid rgba(0, 102, 255, 0.25);
  border-radius: var(--radius-md);
  margin-top: 1.5rem;
}

.wompi-logo-badge {
  font-weight: 800;
  font-size: 1.1rem;
  color: #FFFFFF;
  display: flex;
  align-items: center;
  gap: 0.3rem;
}

.wompi-logo-badge span {
  color: #00F0FF;
}

/* Comparison Table */
.table-responsive {
  width: 100%;
  overflow-x: auto;
  border: 1px solid var(--border-card);
  border-radius: var(--radius-lg);
  background: var(--bg-surface);
}

.zentra-table {
  width: 100%;
  border-collapse: collapse;
  text-align: left;
}

.zentra-table th, .zentra-table td {
  padding: 1rem 1.25rem;
  border-bottom: 1px solid var(--border-subtle);
  font-size: 0.9rem;
}

.zentra-table th {
  background: var(--bg-surface-elevated);
  color: var(--text-bright);
  font-weight: 700;
}

.zentra-table tr:hover td {
  background: rgba(255, 255, 255, 0.02);
}

/* Footer */
.site-footer {
  margin-top: auto;
  background: #04070e;
  border-top: 1px solid var(--border-subtle);
  padding: 4rem 0 2rem;
}

.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: 3rem;
  margin-bottom: 3rem;
}

.footer-col h4 {
  color: #FFFFFF;
  margin-bottom: 1.2rem;
  font-size: 1rem;
}

.footer-links {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 0.65rem;
}

.footer-links a {
  color: var(--text-dim);
  font-size: 0.9rem;
}

.footer-links a:hover {
  color: var(--accent-cyan);
}

.footer-bottom {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-top: 2rem;
  border-top: 1px solid var(--border-subtle);
  font-size: 0.85rem;
  color: var(--text-dim);
}

/* Toast Notification */
.toast-container {
  position: fixed;
  bottom: 2rem;
  right: 2rem;
  z-index: 9999;
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}

.zentra-toast {
  background: var(--bg-surface-elevated);
  border: 1px solid var(--accent-cyan);
  color: #FFFFFF;
  padding: 1rem 1.4rem;
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-lg);
  display: flex;
  align-items: center;
  gap: 0.75rem;
  animation: slideInRight 0.3s ease;
}

@keyframes slideInRight {
  from { transform: translateX(100%); opacity: 0; }
  to { transform: translateX(0); opacity: 1; }
}

@media (max-width: 992px) {
  .footer-grid {
    grid-template-columns: 1fr 1fr;
  }
}

@media (max-width: 640px) {
  .footer-grid {
    grid-template-columns: 1fr;
  }
  .footer-bottom {
    flex-direction: column;
    gap: 1rem;
    text-align: center;
  }
  .nav-links {
    display: none;
  }
}

/* ==========================================================================
   Wompi Open-Amount & Custom Payment Modal
   ========================================================================== */
.zentra-modal-backdrop {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: rgba(3, 7, 18, 0.88);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  z-index: 10000;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 1.5rem;
  opacity: 0;
  visibility: hidden;
  transition: opacity 0.3s cubic-bezier(0.16, 1, 0.3, 1), visibility 0.3s ease;
}

.zentra-modal-backdrop.active {
  opacity: 1;
  visibility: visible;
}

.zentra-modal-dialog {
  background: linear-gradient(135deg, rgba(11, 20, 38, 0.98), rgba(6, 11, 22, 0.98));
  border: 1px solid var(--border-blue);
  box-shadow: 0 25px 60px rgba(0, 0, 0, 0.8), 0 0 35px rgba(0, 102, 255, 0.25);
  border-radius: var(--radius-lg);
  max-width: 620px;
  width: 100%;
  max-height: 90vh;
  overflow-y: auto;
  position: relative;
  transform: translateY(20px) scale(0.96);
  transition: transform 0.3s cubic-bezier(0.16, 1, 0.3, 1);
  padding: 2.25rem;
}

.zentra-modal-backdrop.active .zentra-modal-dialog {
  transform: translateY(0) scale(1);
}

.modal-header {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  border-bottom: 1px solid var(--border-subtle);
  padding-bottom: 1.25rem;
  margin-bottom: 1.5rem;
}

.modal-title-group {
  display: flex;
  flex-direction: column;
  gap: 0.25rem;
}

.modal-close-btn {
  background: rgba(255, 255, 255, 0.06);
  border: 1px solid var(--border-subtle);
  color: var(--text-dim);
  width: 38px;
  height: 38px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  transition: all 0.2s ease;
  font-size: 1.25rem;
  line-height: 1;
}

.modal-close-btn:hover {
  background: rgba(244, 63, 94, 0.2);
  border-color: #f43f5e;
  color: #f43f5e;
  transform: rotate(90deg);
}

.modal-warning-alert {
  background: rgba(245, 158, 11, 0.1);
  border: 1px solid rgba(245, 158, 11, 0.5);
  border-left: 4px solid var(--accent-amber);
  border-radius: var(--radius-md);
  padding: 1.25rem;
  margin-bottom: 1.5rem;
  box-shadow: 0 4px 15px rgba(245, 158, 11, 0.08);
}

.modal-warning-text {
  color: #FEF3C7;
  font-size: 0.95rem;
  line-height: 1.6;
  font-weight: 500;
}

.modal-plan-summary {
  background: rgba(0, 0, 0, 0.35);
  border: 1px solid var(--border-card);
  border-radius: var(--radius-md);
  padding: 1.25rem;
  margin-bottom: 1.5rem;
}

.modal-data-row {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 0.65rem 0;
  border-bottom: 1px solid rgba(255, 255, 255, 0.06);
}

.modal-data-row:last-child {
  border-bottom: none;
  padding-bottom: 0;
}

.modal-steps-list {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
  margin: 1.25rem 0 1.75rem;
  font-size: 0.88rem;
  color: #CBD5E1;
}

.modal-step-item {
  display: flex;
  align-items: flex-start;
  gap: 0.75rem;
  line-height: 1.5;
}

.modal-step-num {
  background: rgba(0, 240, 255, 0.15);
  color: var(--accent-cyan);
  border: 1px solid var(--accent-cyan);
  width: 24px;
  height: 24px;
  min-width: 24px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.75rem;
  font-weight: 700;
}

.btn-wompi-pay {
  background: linear-gradient(135deg, #00C8FF 0%, #0066FF 100%);
  color: #FFFFFF;
  font-weight: 700;
  border: none;
  box-shadow: 0 4px 16px rgba(0, 102, 255, 0.4);
  transition: all 0.25s ease;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
}

.btn-wompi-pay:hover {
  background: linear-gradient(135deg, #1ae4ff 0%, #0077ff 100%);
  box-shadow: 0 6px 24px rgba(0, 240, 255, 0.5);
  transform: translateY(-2px);
  color: #FFFFFF;
}