/**
 * Checkout Module — V2 Tamahagane Dark Theme
 * Inherits from layout.css :root --one-* design system
 * Spacing: multiples of 8 — 8/12/16/20/24/32/40/48/56px
 * Input height: 52px, CTA height: 56px
 * Font: Nunito for large titles, Inter for body and small headings
 */

/* ── Design Tokens (V2 Tamahagane — 独立于 layout.css，便于未来切换亮色主题) ── */
:root {
  /* Backgrounds — V2 暖钢灰层级 */
  --checkout-dark-bg-page:   #151619;   /* = --one-bg-primary */
  --checkout-dark-bg-card:   #1C1D21;   /* = --one-bg-card */
  --checkout-dark-bg-input:  #0D0E10;   /* = --one-bg-void */
  --checkout-dark-bg-header: #121315;   /* = --one-bg-hero */

  /* Borders */
  --checkout-dark-border:       #282930; /* = --one-border */
  --checkout-dark-border-focus: #9A9DA3; /* 冷灰 focus — 结算页只保留红色 CTA 作为色彩焦点 */
  --checkout-dark-border-error: #DC3545;

  /* Text */
  --checkout-dark-text:       #E0E0E0;  /* 正文 — 88% 白，暗底避免纯白刺眼 */
  --checkout-dark-text-title: #F0F0F0;  /* 标题 — 94% 白 */
  --checkout-dark-text-muted: #A0A0A0;  /* 次要文字 — 60% 白 */

  /* Accent & Status — 结算页减少多色干扰，步骤指示用灰度 */
  --checkout-dark-accent:   #9A9DA3;    /* 冷灰 — 当前步骤/focus，不用蓝色 */
  --checkout-dark-cta:      #C8322D;    /* = --one-red */
  --checkout-dark-btn-card: #C8322D;    /* = --one-red */
  --checkout-dark-success:  #3CB371;    /* 已完成步骤绿色 — 用户清晰知道当前进度 */
  --checkout-dark-paypal:   #FFC439;

  /* Sizing */
  --checkout-dark-input-h:    52px;
  --checkout-dark-btn-h:      56px;
  --checkout-dark-radius:     8px;
  --checkout-dark-radius-lg:  8px;
  --checkout-dark-radius-8:   8px;

  /* Font — large titles Nunito, body/small headings Inter */
  --checkout-dark-font-heading: 'Nunito', sans-serif;
  --checkout-dark-font: 'Inter', sans-serif;
}

/* ── Page & Layout ── */
body.one-checkout-body {
  background-color: var(--checkout-dark-bg-page);
  color: var(--checkout-dark-text);
  font-family: var(--checkout-dark-font);
  min-height: 100vh;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

body.one-checkout-body h1 {
  color: var(--checkout-dark-text-title);
  font-family: var(--checkout-dark-font-heading);
}

body.one-checkout-body h2,
body.one-checkout-body h3 {
  color: var(--checkout-dark-text-title);
  font-family: var(--checkout-dark-font);
}

/* ── Card ── */
.one-checkout-card {
  background-color: var(--checkout-dark-bg-card);
  border: 1px solid var(--checkout-dark-border);
  border-radius: var(--checkout-dark-radius-lg);
  padding: 1.5rem;
}

/* Card section titles — V2 display style */
.one-checkout-card h2,
.one-checkout-summary h2 {
  color: var(--checkout-dark-text-title);
  font-family: var(--checkout-dark-font);
  font-weight: 800;
  letter-spacing: -0.01em;
}

/* Label text */
.one-checkout-label {
  font-family: var(--checkout-dark-font);
}

/* ── Header & Footer bars ── */
.one-checkout-header {
  background-color: var(--checkout-dark-bg-header);
}

.one-checkout-logo { padding: 30px 10px; text-align: center; }
.one-checkout-logo img { text-align: center; width: 200px; display: inline; }

@media (max-width: 991.98px) {
  .one-checkout-logo img { width: 140px; }
  .one-checkout-steps { max-width: 350px; }
  .one-checkout-card { padding: 1rem !important; }
}


.one-checkout-footer {
  background-color: var(--checkout-dark-bg-card);
  border-top: 1px solid var(--checkout-dark-border);
}

.one-checkout-footer nav { font-size: 14px; }
.one-checkout-footer-cta { max-width: 1400px; margin: auto; padding-bottom: 35px; text-align: center; margin-bottom: 40px; border-bottom: 1px solid var(--checkout-dark-border); }
.one-checkout-footer-container { max-width: 1280px; margin: auto; padding-bottom: 15px; }
.one-footer-cta { color: var(--checkout-dark-text-muted); text-align: center; font-weight: 500; }
.one-footer-cta span { display: block; }
.one-footer-cta img { max-width: 30px; display: inline; margin-bottom: 10px; }
.one-footer-cta-title { max-width: 180px; margin: auto; }


.one-footer-title { color: var(--checkout-dark-text-muted); font-weight: 900; font-size: 1em; margin-bottom: 8px; }
.one-footer-link { color: var(--checkout-dark-text); display: block; line-height: 1.65; }
.one-footer-link:hover { color: var(--checkout-dark-accent); }
.one-checkout-footer-copyright { background-color: #000; color: var(--checkout-dark-text-muted); text-align: center; font-size: 14px; padding: 15px 0; margin-top: 50px; margin-left: calc(-50vw + 50%); margin-right: calc(-50vw + 50%); margin-bottom: -2.5rem; }

@media (max-width: 991.98px) {
  .one-checkout-footer-container { max-width: 90%; margin: auto; padding-bottom: 15px; text-align: center; }
}


/* ── Text colors ── */
.one-checkout-text { color: var(--checkout-dark-text); }
.one-checkout-text-muted { color: var(--checkout-dark-text-muted); }
.one-checkout-text-accent { color: var(--checkout-dark-accent); }
.one-checkout-text-success { color: var(--checkout-dark-success); }
.one-checkout-text-error { color: var(--checkout-dark-cta); }

/* ── Input ── */
.one-checkout-input {
  height: var(--checkout-dark-input-h);
  background-color: var(--checkout-dark-bg-input);
  border: 1px solid var(--checkout-dark-border);
  color: var(--checkout-dark-text);
  border-radius: var(--checkout-dark-radius);
}

.one-checkout-input:focus {
  border-color: var(--checkout-dark-border-focus);
  box-shadow: 0 0 0 2px rgba(122,155,181,0.15);
}

.one-checkout-input::placeholder {
  color: var(--checkout-dark-text-muted);
}

/* ── Select (same as input + appearance) ── */
.one-checkout-select {
  height: var(--checkout-dark-input-h);
  background-color: var(--checkout-dark-bg-input);
  border: 1px solid var(--checkout-dark-border);
  color: var(--checkout-dark-text);
  border-radius: var(--checkout-dark-radius);
  appearance: none;
  cursor: pointer;
}

.one-checkout-select:focus {
  border-color: var(--checkout-dark-border-focus);
  box-shadow: 0 0 0 2px rgba(122,155,181,0.15);
}

/* ── Buttons ── */
.one-checkout-card-btn {
  height: var(--checkout-dark-btn-h);
  background-color: var(--checkout-dark-btn-card);
  border-radius: var(--checkout-dark-radius-8);
  color: #fff;
  font-weight: 800;
  transition: opacity 0.15s;
  cursor: pointer;
}

.one-checkout-card-btn:hover {
  opacity: 0.9;
}


.one-checkout-btn-cta {
  height: var(--checkout-dark-btn-h);
  background-color: var(--checkout-dark-btn-card);
  border-radius: var(--checkout-dark-radius-lg);
  color: #fff;
  font-weight: 700;
  transition: opacity 0.15s;
  cursor: pointer;
}

.one-checkout-btn-cta:hover {
  opacity: 0.9;
}

.one-checkout-btn-paypal { height: 48px !important; background-color: var(--checkout-dark-paypal); border-radius: var(--checkout-dark-radius-8); color: #111; }
.one-checkout-btn-apple-pay { height: 52px !important; border-radius: var(--checkout-dark-radius-8); }
.one-checkout-btn-venmo { border-radius: var(--checkout-dark-radius-8); }

.one-checkout-btn-apply {
  height: 44px;
  background-color: var(--checkout-dark-border);
  color: var(--checkout-dark-text);
  border-radius: var(--checkout-dark-radius);
  transition: background-color 0.15s;
}

.one-checkout-btn-apply:hover {
  background-color: var(--one-border-hover);
}

/* ── Coupon input (smaller) ── */
.one-checkout-input-sm {
  height: 44px;
  background-color: var(--checkout-dark-bg-input);
  border: 1px solid var(--checkout-dark-border);
  color: var(--checkout-dark-text);
  border-radius: var(--checkout-dark-radius);
}

.one-checkout-input-sm:focus {
  border-color: var(--checkout-dark-border-focus);
  box-shadow: 0 0 0 2px rgba(122,155,181,0.15);
}

/* ── Summary card (sticky on desktop) ── */
.one-checkout-summary {
  background-color: var(--checkout-dark-bg-card);
  border: 1px solid var(--checkout-dark-border);
  border-radius: var(--checkout-dark-radius-lg);
  padding: 1.5rem;
  position: sticky;
  top: 2rem;
}

/* ── Summary sub-panel (inside payment section) ── */
.one-checkout-summary-inner {
  background-color: var(--checkout-dark-bg-input);
  border: 1px solid var(--checkout-dark-border);
  border-radius: 0.5rem;
  padding: 1rem;
  margin-bottom: 1.5rem;
}

/* ── Divider ── */
.one-checkout-divider {
  border-color: var(--checkout-dark-border);
}


/* ── Cart Item ── */
.one-checkout-item {
  background-color: var(--checkout-dark-bg-card);
  border: 1px solid var(--checkout-dark-border);
  border-radius: var(--checkout-dark-radius-lg);
  padding: 1.5rem;
}


/* ── Cart item image ── */
.one-checkout-item-image {
  background-color: var(--checkout-dark-bg-input);
  width: 80px;
  height: 120px;
  border-radius: 6px;
  overflow: hidden;
}

.one-checkout-item-info h3 { font-size: 14px !important; }

/* ── Qty badge ── */
.one-checkout-qty-badge {
  background-color: var(--checkout-dark-cta);
}

/* ── Qty button ── */
.one-checkout-qty-btn {
  background-color: var(--checkout-dark-bg-input);
  border: 1px solid var(--checkout-dark-border);
  color: var(--checkout-dark-text);
  border-radius: 40px;
  cursor: pointer;
  transition: border-color 0.15s;
}

.one-checkout-qty-btn:hover {
  border-color: var(--checkout-dark-border-focus);
}

/* ── Brand text ── */
.one-checkout-brand {
  color: var(--checkout-dark-text);
  font-family: var(--checkout-dark-font);
  font-weight: 800;
  letter-spacing: -0.01em;
}

/* ── Focus Ring (keyboard accessibility) ── */
input:focus-visible,
select:focus-visible,
button:focus-visible {
  outline: 2px solid var(--checkout-dark-border-focus);
  outline-offset: 2px;
}
/* Inputs with custom focus border don't need outline */
.one-checkout-input:focus-visible,
.one-checkout-select:focus-visible,
.one-checkout-input-sm:focus-visible {
  outline: none;
}

/* ── Input Error State ── */
.onesite-input-error {
  border-color: var(--checkout-dark-border-error) !important;
}

.onesite-error-text {
  color: var(--checkout-dark-cta);
  font-size: 0.75rem;
  margin-top: 4px;
}

/* ── Loading Overlay ── */
.onesite-loading {
  position: fixed;
  inset: 0;
  z-index: 9999;
  display: flex;
  align-items: center;
  justify-content: center;
  background-color: rgba(13, 14, 16, 0.92);
}

.onesite-loading-spinner {
  width: 40px;
  height: 40px;
  border: 3px solid var(--checkout-dark-border);
  border-top-color: var(--checkout-dark-accent);
  border-radius: 50%;
  animation: onesite-spin 0.8s linear infinite;
}

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

/* ── Step Progress Bar ── */
.one-checkout-step-complete {
  background-color: var(--checkout-dark-success);
  color: #fff;
}

.one-checkout-step-active {
  border: 2px solid var(--checkout-dark-accent);
  color: var(--checkout-dark-accent);
  background-color: transparent;
}

.one-checkout-step-pending {
  border: 2px solid var(--checkout-dark-border);
  color: var(--checkout-dark-text-muted);
  background-color: transparent;
}

.one-checkout-step-line-complete {
  background-color: var(--checkout-dark-success);
}

.one-checkout-step-line-pending {
  background-color: var(--checkout-dark-border);
}

/* Step circle pop-in animation */
.one-checkout-step-pop {
  opacity: 0;
  transform: scale(0.5);
  animation: onesite-step-pop 0.4s cubic-bezier(0.34, 1.56, 0.64, 1) forwards;
}

@keyframes onesite-step-pop {
  to {
    opacity: 1;
    transform: scale(1);
  }
}

/* Line fill animation (left to right) */
.one-checkout-line-fill {
  transform: scaleX(0);
  transform-origin: left;
  animation: onesite-line-fill 0.35s ease-out forwards;
}

@keyframes onesite-line-fill {
  to {
    transform: scaleX(1);
  }
}

/* ── Google Places Autocomplete Dropdown ── */
.onesite-ac-list {
  background-color: var(--checkout-dark-bg-card);
  border: 1px solid var(--checkout-dark-border-focus);
}
.onesite-ac-item {
  color: var(--checkout-dark-text);
}
.onesite-ac-item:hover,
.onesite-ac-item:active {
  background-color: var(--checkout-dark-bg-input);
}
.onesite-ac-item:not(:last-child) {
  border-bottom: 1px solid var(--checkout-dark-border);
}
.onesite-ac-secondary {
  color: var(--checkout-dark-text-muted);
}

/* ── Scrollbar (cart item list) ── */
.max-h-64::-webkit-scrollbar {
  width: 4px;
}

.max-h-64::-webkit-scrollbar-track {
  background: var(--checkout-dark-bg-card);
}

.max-h-64::-webkit-scrollbar-thumb {
  background: var(--checkout-dark-border);
  border-radius: 2px;
}