/* ============================================================
   PAGE: Payment / Deposit (payment.html)
   Sections: page header, step flow, plan selector,
             crypto selector, wallet display, confirm form
   ============================================================ */

.payment-page {
  min-height: 100vh;
  background: var(--body-bg);
  padding-top: 70px; /* offset for fixed navbar */
}

/* ============================================================
   PAGE HEADER
   ============================================================ */
.payment-header {
  background: var(--navy);
  padding: 52px 0 48px;
  position: relative;
  overflow: hidden;
}

.payment-header::before {
  content: '';
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(255,255,255,0.02) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,0.02) 1px, transparent 1px);
  background-size: 60px 60px;
  pointer-events: none;
}

.payment-header-inner {
  position: relative;
  z-index: 1;
}

.payment-header h1 {
  font-size: clamp(1.6rem, 3vw, 2.2rem);
  font-weight: 800;
  color: var(--white);
  margin-bottom: 8px;
  letter-spacing: -0.02em;
}

.payment-header p {
  font-size: 0.95rem;
  color: rgba(255,255,255,0.55);
}

/* Step progress indicator */
.payment-steps {
  display: flex;
  align-items: center;
  gap: 0;
  margin-top: 32px;
}

.p-step {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 0.82rem;
  font-weight: 600;
  color: rgba(255,255,255,0.35);
}

.p-step.active  { color: var(--gold); }
.p-step.done    { color: var(--success); }

.p-step-num {
  width: 28px; height: 28px;
  border-radius: 50%;
  border: 2px solid currentColor;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.75rem;
  font-weight: 700;
  flex-shrink: 0;
  transition: var(--transition);
}

.p-step.active .p-step-num { background: var(--gold); border-color: var(--gold); color: var(--navy); }
.p-step.done   .p-step-num { background: var(--success); border-color: var(--success); color: var(--white); }

.p-step-connector {
  flex: 1;
  height: 2px;
  background: rgba(255,255,255,0.1);
  margin: 0 12px;
  min-width: 40px;
}

.p-step-connector.done { background: var(--success); }

/* ============================================================
   PAYMENT LAYOUT
   ============================================================ */
.payment-layout {
  display: grid;
  grid-template-columns: 1fr 380px;
  gap: 28px;
  padding: 40px 0 80px;
  align-items: start;
}

/* ============================================================
   LEFT COLUMN — Steps
   ============================================================ */
.payment-left {}

.payment-step-block {
  background: var(--white);
  border-radius: var(--radius-lg);
  padding: 28px;
  box-shadow: var(--shadow-sm);
  border: 1px solid var(--border);
  margin-bottom: 20px;
}

.step-block-header {
  display: flex;
  align-items: center;
  gap: 14px;
  margin-bottom: 22px;
}

.step-block-num {
  width: 36px; height: 36px;
  border-radius: 50%;
  background: var(--navy);
  color: var(--gold);
  font-size: 0.875rem;
  font-weight: 800;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

.step-block-title {
  font-size: 1rem;
  font-weight: 700;
  color: var(--text-dark);
}

.step-block-sub {
  font-size: 0.8rem;
  color: var(--text-muted);
  margin-top: 2px;
}

/* --- Plan selector cards --- */
.plan-selector {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 14px;
}

.plan-option {
  border: 2px solid var(--border);
  border-radius: var(--radius);
  padding: 18px 14px;
  cursor: pointer;
  transition: var(--transition);
  position: relative;
}

.plan-option:hover { border-color: rgba(201,168,76,0.4); }

.plan-option.selected {
  border-color: var(--gold);
  background: rgba(201,168,76,0.04);
}

.plan-option input[type="radio"] {
  position: absolute;
  opacity: 0;
  width: 0; height: 0;
}

.plan-option-roi {
  font-size: 1.5rem;
  font-weight: 800;
  color: var(--gold);
  line-height: 1;
  margin-bottom: 2px;
}

.plan-option-label {
  font-size: 0.75rem;
  color: var(--text-muted);
  margin-bottom: 6px;
}

.plan-option-name {
  font-size: 0.82rem;
  font-weight: 700;
  color: var(--text-dark);
}

.plan-option-min {
  font-size: 0.72rem;
  color: var(--text-muted);
  margin-top: 4px;
}

/* checkmark on selected */
.plan-option-check {
  position: absolute;
  top: 10px; right: 10px;
  width: 20px; height: 20px;
  border-radius: 50%;
  background: var(--gold);
  color: var(--navy);
  font-size: 0.65rem;
  font-weight: 900;
  display: none;
  align-items: center;
  justify-content: center;
}

.plan-option.selected .plan-option-check { display: flex; }

/* --- Crypto selector --- */
.crypto-selector {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 14px;
}

.crypto-option {
  border: 2px solid var(--border);
  border-radius: var(--radius);
  padding: 16px 20px;
  cursor: pointer;
  transition: var(--transition);
  display: flex;
  align-items: center;
  gap: 14px;
  position: relative;
}

.crypto-option:hover { border-color: rgba(201,168,76,0.4); }
.crypto-option.selected { border-color: var(--gold); background: rgba(201,168,76,0.04); }

.crypto-option input[type="radio"] {
  position: absolute;
  opacity: 0; width: 0; height: 0;
}

.crypto-icon {
  width: 40px; height: 40px;
  border-radius: 10px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.25rem;
  flex-shrink: 0;
}

.crypto-icon.btc  { background: rgba(247,147,26,0.1); }
.crypto-icon.usdt { background: rgba(38,161,123,0.1); }

.crypto-name    { font-size: 0.9rem; font-weight: 700; color: var(--text-dark); }
.crypto-network { font-size: 0.72rem; color: var(--text-muted); margin-top: 2px; }

.crypto-check {
  position: absolute;
  top: 10px; right: 10px;
  width: 18px; height: 18px;
  border-radius: 50%;
  background: var(--gold);
  color: var(--navy);
  font-size: 0.6rem;
  font-weight: 900;
  display: none;
  align-items: center;
  justify-content: center;
}

.crypto-option.selected .crypto-check { display: flex; }

/* ============================================================
   RIGHT COLUMN — Wallet & Confirm
   ============================================================ */
.payment-right {}

.wallet-card {
  background: var(--white);
  border-radius: var(--radius-lg);
  padding: 28px;
  box-shadow: var(--shadow-sm);
  border: 1px solid var(--border);
  margin-bottom: 20px;
}

.wallet-card-title {
  font-size: 0.95rem;
  font-weight: 700;
  color: var(--text-dark);
  margin-bottom: 20px;
}

/* QR code image */
.qr-image-wrap {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 8px;
  margin: 0 auto 20px;
}

.qr-image {
  width: 180px;
  height: 180px;
  object-fit: contain;
  border: 2px solid var(--border);
  border-radius: var(--radius);
  background: #fff;
  padding: 8px;
  display: block;
}

.qr-label {
  font-size: 0.7rem;
  color: var(--text-muted);
  text-align: center;
}

/* Wallet address display */
.wallet-address-wrap {
  position: relative;
  margin-bottom: 16px;
}

.wallet-address {
  width: 100%;
  padding: 12px 90px 12px 14px;
  border: 1.5px solid var(--border);
  border-radius: var(--radius);
  font-family: 'Courier New', monospace;
  font-size: 0.78rem;
  color: var(--text-dark);
  background: var(--body-bg);
  word-break: break-all;
  resize: none;
  outline: none;
  cursor: default;
  line-height: 1.5;
}

.wallet-copy-btn {
  position: absolute;
  right: 8px;
  top: 50%;
  transform: translateY(-50%);
  padding: 6px 12px;
  font-size: 0.75rem;
  font-weight: 600;
  background: var(--navy);
  color: var(--white);
  border-radius: var(--radius-sm);
  cursor: pointer;
  border: none;
  transition: var(--transition);
  font-family: var(--font-base);
}

.wallet-copy-btn:hover { background: var(--navy-light); }
.wallet-copy-btn.copied { background: var(--success); }

.wallet-note {
  font-size: 0.78rem;
  color: var(--text-muted);
  line-height: 1.65;
  padding: 12px;
  background: rgba(201,168,76,0.05);
  border: 1px solid rgba(201,168,76,0.15);
  border-radius: var(--radius-sm);
  margin-top: 8px;
}

.wallet-note strong { color: var(--gold); }

/* Confirm payment form */
.confirm-card {
  background: var(--white);
  border-radius: var(--radius-lg);
  padding: 28px;
  box-shadow: var(--shadow-sm);
  border: 1px solid var(--border);
}

.confirm-card-title {
  font-size: 0.95rem;
  font-weight: 700;
  color: var(--text-dark);
  margin-bottom: 20px;
}

/* Confirm flow states */
.confirm-idle    {}
.confirm-loading { display: none; text-align: center; padding: 20px 0; }
.confirm-success { display: none; text-align: center; padding: 20px 0; }

.confirm-spinner {
  width: 44px; height: 44px;
  border: 3px solid rgba(201,168,76,0.2);
  border-top-color: var(--gold);
  border-radius: 50%;
  animation: spin 0.8s linear infinite;
  margin: 0 auto 16px;
}

.confirm-loading p {
  font-size: 0.9rem;
  color: var(--text-muted);
}

.confirm-success-icon {
  width: 60px; height: 60px;
  border-radius: 50%;
  background: rgba(34,197,94,0.1);
  color: var(--success);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.6rem;
  margin: 0 auto 16px;
}

.confirm-success h3 {
  font-size: 1rem;
  font-weight: 700;
  color: var(--text-dark);
  margin-bottom: 8px;
}

.confirm-success p {
  font-size: 0.85rem;
  color: var(--text-muted);
  line-height: 1.65;
}

/* ============================================================
   RESPONSIVE
   ============================================================ */
@media (max-width: 960px) {
  .payment-layout { grid-template-columns: 1fr; }
  .payment-right  { order: -1; }
  .plan-selector  { grid-template-columns: 1fr 1fr 1fr; }
}

@media (max-width: 600px) {
  .payment-steps   { display: none; }
  .plan-selector   { grid-template-columns: 1fr; }
  .crypto-selector { grid-template-columns: 1fr; }
}