/* =========================================================
   ZARVAAN — CHECKOUT PAGE
   Luxury Black & Gold Theme
   ========================================================= */

/* 01. ROOT VARIABLES */
:root {
  --color-bg: #080808;
  --color-surface: #101010;
  --color-surface-light: #151515;
  --color-border: #29251c;

  --color-gold: #c9a45c;
  --color-gold-light: #e3c783;
  --color-gold-dark: #94743a;

  --color-text: #f3f0e9;
  --color-muted: #a6a197;
  --color-danger: #ef7777;
  --color-success: #b7d8ad;

  --font-heading: "Cormorant Garamond", Georgia, serif;
  --font-body: "DM Sans", Arial, sans-serif;

  --radius-small: 6px;
  --radius-medium: 10px;
  --radius-large: 16px;

  --transition: 0.25s ease;
}

/* 02. RESET */
* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  scroll-behavior: smooth;
  color-scheme: dark;
}

body {
  min-height: 100vh;
  background: var(--color-bg);
  color: var(--color-text);
  font-family: var(--font-body);
  font-size: 14px;
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
}

body,
input,
textarea,
button {
  font-family: var(--font-body);
}

button,
input,
textarea {
  font-size: inherit;
}

button,
a,
input,
textarea {
  -webkit-tap-highlight-color: transparent;
}

a {
  color: inherit;
  text-decoration: none;
}

button {
  cursor: pointer;
}

img {
  display: block;
  max-width: 100%;
}

::selection {
  background: var(--color-gold);
  color: #080808;
}

/* 03. ACCESSIBILITY */
:focus-visible {
  outline: 2px solid var(--color-gold-light);
  outline-offset: 4px;
}

[hidden] {
  display: none !important;
}

/* 04. HEADER */
.checkout-header {
  width: 100%;
  min-height: 92px;
  padding: 20px 7%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  border-bottom: 1px solid var(--color-border);
  background: #090909;
}

.brand-logo {
  display: inline-flex;
  flex-direction: column;
  align-items: center;
  gap: 1px;
  color: var(--color-gold-light);
  font-family: var(--font-heading);
  font-size: 35px;
  font-weight: 700;
  letter-spacing: 5px;
  line-height: 1.1;
}

.brand-logo span {
  color: var(--color-muted);
  font-family: var(--font-body);
  font-size: 8px;
  font-weight: 500;
  letter-spacing: 3px;
}

.back-to-cart {
  color: var(--color-muted);
  font-size: 12px;
  transition: color var(--transition);
}

.back-to-cart:hover {
  color: var(--color-gold-light);
}

/* 05. MAIN CONTAINER */
.checkout-container {
  width: min(1180px, 86%);
  margin: 0 auto;
  padding: 65px 0 90px;
}

/* 06. PAGE HEADING */
.checkout-heading {
  margin-bottom: 48px;
  text-align: center;
}

.eyebrow {
  margin-bottom: 9px;
  color: var(--color-gold);
  font-size: 10px;
  font-weight: 600;
  letter-spacing: 3px;
  text-transform: uppercase;
}

.checkout-heading h1 {
  font-family: var(--font-heading);
  font-size: clamp(38px, 5vw, 58px);
  font-weight: 500;
  line-height: 1.15;
}

.checkout-heading h1 span {
  color: var(--color-gold-light);
}

.heading-description {
  margin-top: 12px;
  color: var(--color-muted);
  font-size: 13px;
}

/* 07. CHECKOUT PROGRESS */
.checkout-progress {
  width: min(480px, 100%);
  margin: 36px auto 0;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 13px;
}

.progress-step {
  display: flex;
  align-items: center;
  gap: 8px;
  color: #77736b;
  font-size: 11px;
  white-space: nowrap;
}

.step-number {
  width: 27px;
  height: 27px;
  display: grid;
  place-items: center;
  border: 1px solid #39352d;
  border-radius: 50%;
  color: #99948a;
  font-size: 11px;
}

.progress-step.completed .step-number {
  border-color: var(--color-gold-dark);
  background: var(--color-gold);
  color: #080808;
}

.progress-step.active {
  color: var(--color-gold-light);
}

.progress-step.active .step-number {
  border-color: var(--color-gold);
  color: var(--color-gold-light);
}

.progress-line {
  width: 35px;
  height: 1px;
  flex-shrink: 1;
  background: #39352d;
}

/* 08. MAIN TWO-COLUMN LAYOUT */
.checkout-layout {
  display: grid;
  grid-template-columns: minmax(0, 1.55fr) minmax(300px, 0.9fr);
  align-items: start;
  gap: 42px;
}

/* 09. FORM SECTION */
.checkout-form-section {
  min-width: 0;
}

.section-heading {
  display: flex;
  align-items: flex-start;
  gap: 15px;
  margin-bottom: 27px;
}

.section-number {
  padding-top: 1px;
  color: var(--color-gold);
  font-family: var(--font-heading);
  font-size: 24px;
  line-height: 1.3;
}

.section-heading h2 {
  font-family: var(--font-heading);
  font-size: 28px;
  font-weight: 500;
  line-height: 1.25;
}

.section-heading p {
  margin-top: 5px;
  color: var(--color-muted);
  font-size: 12px;
}

/* 10. FIELDSETS */
.form-fieldset {
  min-width: 0;
  margin-bottom: 35px;
  padding: 0;
  border: 0;
}

.form-fieldset legend {
  width: 100%;
  margin-bottom: 20px;
  padding-bottom: 12px;
  border-bottom: 1px solid var(--color-border);
  color: var(--color-gold-light);
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 1.2px;
}

/* 11. FORM GRID */
.form-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 21px 18px;
}

.form-group {
  display: flex;
  min-width: 0;
  flex-direction: column;
  gap: 8px;
}

.form-group.full-width {
  grid-column: 1 / -1;
}

.form-group label {
  color: #e4e0d7;
  font-size: 11px;
  font-weight: 500;
}

.optional {
  color: var(--color-muted);
  font-weight: 400;
}

/* 12. INPUTS AND TEXTAREAS */
.form-group input,
.form-group textarea {
  width: 100%;
  min-width: 0;
  min-height: 49px;
  padding: 13px 14px;
  border: 1px solid #302c24;
  border-radius: var(--radius-small);
  outline: none;
  background: #0d0d0d;
  color: var(--color-text);
  font-size: 12px;
  line-height: 1.6;
  transition:
    border-color var(--transition),
    background var(--transition),
    box-shadow var(--transition);
}

.form-group textarea {
  min-height: 95px;
  resize: vertical;
}

.form-group input::placeholder,
.form-group textarea::placeholder {
  color: #716d65;
  opacity: 1;
}

.form-group input:hover,
.form-group textarea:hover {
  border-color: #514632;
}

.form-group input:focus,
.form-group textarea:focus {
  border-color: var(--color-gold-dark);
  background: #11100d;
  box-shadow: 0 0 0 3px rgb(201 164 92 / 8%);
}

.form-group input:read-only {
  border-color: #25231e;
  background: #111;
  color: #b9b4aa;
  cursor: default;
}

/* Browser validation styling */
.form-group input:invalid:not(:placeholder-shown),
.form-group textarea:invalid:not(:placeholder-shown) {
  border-color: #8b4848;
}

/* 13. PAYMENT SECTION */
.payment-section {
  margin-top: 7px;
  margin-bottom: 28px;
}

.payment-section .section-heading {
  margin-bottom: 20px;
}

.payment-option {
  position: relative;
  display: flex;
  align-items: flex-start;
  gap: 13px;
  padding: 19px 16px;
  border: 1px solid var(--color-gold-dark);
  border-radius: var(--radius-medium);
  background: linear-gradient(
    120deg,
    rgb(201 164 92 / 7%),
    rgb(201 164 92 / 2%)
  );
  cursor: pointer;
  transition: background var(--transition);
}

.payment-option:hover {
  background: rgb(201 164 92 / 10%);
}

.payment-option input[type="radio"] {
  width: 16px;
  height: 16px;
  margin-top: 4px;
  flex-shrink: 0;
  accent-color: var(--color-gold);
  cursor: pointer;
}

.payment-icon {
  width: 35px;
  height: 35px;
  display: grid;
  flex-shrink: 0;
  place-items: center;
  border: 1px solid #51432b;
  border-radius: 50%;
  color: var(--color-gold-light);
  font-size: 16px;
}

.payment-details {
  display: flex;
  flex: 1;
  flex-direction: column;
  gap: 5px;
}

.payment-details strong {
  color: var(--color-text);
  font-size: 12px;
  font-weight: 600;
}

.payment-details small {
  color: var(--color-muted);
  font-size: 11px;
  line-height: 1.7;
}

.payment-badge {
  padding: 4px 8px;
  border: 1px solid #51432b;
  border-radius: 20px;
  color: var(--color-gold-light);
  font-size: 9px;
  white-space: nowrap;
}

.payment-disclaimer {
  margin-top: 12px;
  color: var(--color-muted);
  font-size: 10px;
  line-height: 1.8;
}

/* 14. FORM MESSAGES */
.checkout-message {
  margin: 16px 0;
  padding: 12px 14px;
  border-radius: var(--radius-small);
  font-size: 12px;
}

.error-message {
  border: 1px solid #683737;
  background: #211010;
  color: var(--color-danger);
}

.success-message {
  border: 1px solid #385535;
  background: #101b0e;
  color: var(--color-success);
}

/* 15. PLACE ORDER BUTTON */
.place-order-btn {
  width: 100%;
  min-height: 56px;
  margin-top: 5px;
  padding: 15px 20px;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 15px;
  border: 1px solid var(--color-gold);
  border-radius: var(--radius-small);
  background: var(--color-gold);
  color: #090909;
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 1.7px;
  transition:
    background var(--transition),
    border-color var(--transition),
    transform var(--transition);
}

.place-order-btn span {
  font-size: 19px;
  line-height: 1;
}

.place-order-btn:hover {
  border-color: var(--color-gold-light);
  background: var(--color-gold-light);
  transform: translateY(-1px);
}

.place-order-btn:active {
  transform: translateY(0);
}

.place-order-btn:disabled {
  border-color: #66583d;
  background: #66583d;
  color: #e3dccd;
  cursor: not-allowed;
  transform: none;
  opacity: 0.75;
}

.form-disclaimer {
  margin-top: 13px;
  color: #77736b;
  font-size: 10px;
  line-height: 1.8;
  text-align: center;
}

/* 16. ORDER SUMMARY CARD */
.order-summary {
  position: sticky;
  top: 25px;
  min-width: 0;
  padding: 27px 23px;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-large);
  background:
    radial-gradient(
      ellipse at top right,
      rgb(201 164 92 / 5%),
      transparent 55%
    ),
    var(--color-surface);
}

.summary-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  margin-bottom: 23px;
}

.summary-header .eyebrow {
  margin-bottom: 4px;
  font-size: 9px;
}

.summary-header h2 {
  font-family: var(--font-heading);
  font-size: 27px;
  font-weight: 500;
  line-height: 1.3;
}

.summary-lock {
  width: 36px;
  height: 36px;
  display: grid;
  flex-shrink: 0;
  place-items: center;
  border: 1px solid #4b402b;
  border-radius: 50%;
  color: var(--color-gold);
  font-size: 12px;
}

/* 17. ORDER ITEMS
   checkout.js will populate these elements. */
.checkout-items {
  display: flex;
  flex-direction: column;
  gap: 17px;
}

.empty-cart-message {
  padding: 22px 12px;
  border: 1px dashed #383126;
  border-radius: var(--radius-small);
  color: var(--color-muted);
  font-size: 12px;
  text-align: center;
}

/* Optional item classes for checkout.js */
.checkout-item {
  display: grid;
  grid-template-columns: 64px minmax(0, 1fr) auto;
  align-items: start;
  gap: 12px;
}

.checkout-item-image {
  width: 64px;
  height: 76px;
  overflow: hidden;
  border: 1px solid #302b22;
  border-radius: var(--radius-small);
  background: #17140f;
  object-fit: cover;
}

.checkout-item-info {
  min-width: 0;
}

.checkout-item-name {
  display: block;
  overflow-wrap: anywhere;
  color: var(--color-text);
  font-family: var(--font-heading);
  font-size: 18px;
  font-weight: 600;
  line-height: 1.3;
}

.checkout-item-meta {
  margin-top: 5px;
  color: var(--color-muted);
  font-size: 10px;
}

.checkout-item-price {
  color: var(--color-gold-light);
  font-size: 11px;
  font-weight: 600;
  text-align: right;
  white-space: nowrap;
}

/* 18. SUMMARY TOTALS */
.summary-divider {
  height: 1px;
  margin: 23px 0;
  background: var(--color-border);
}

.summary-row {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 15px;
  margin-bottom: 15px;
  color: var(--color-muted);
  font-size: 12px;
}

.summary-row > :last-child {
  color: #e8e3d9;
  text-align: right;
}

.total-row {
  margin-bottom: 0;
  color: var(--color-text);
  font-size: 13px;
  font-weight: 600;
}

.total-row > :last-child {
  color: var(--color-gold-light);
  font-family: var(--font-heading);
  font-size: 26px;
  line-height: 1.2;
  white-space: nowrap;
}

.tax-note {
  margin-top: 14px;
  color: #77736b;
  font-size: 10px;
  line-height: 1.8;
}

/* 19. TRUST DETAILS */
.summary-trust {
  margin-top: 25px;
  padding-top: 19px;
  display: flex;
  flex-direction: column;
  gap: 10px;
  border-top: 1px solid var(--color-border);
}

.trust-item {
  display: flex;
  align-items: center;
  gap: 9px;
  color: #b5b0a6;
  font-size: 10px;
}

.trust-item > span:first-child {
  color: var(--color-gold);
  font-size: 12px;
}

.edit-cart-link {
  display: inline-block;
  margin-top: 22px;
  color: var(--color-gold-light);
  font-size: 11px;
  transition: color var(--transition);
}

.edit-cart-link:hover {
  color: #fff;
}

/* 20. FOOTER */
.checkout-footer {
  padding: 35px 7% 28px;
  border-top: 1px solid var(--color-border);
  background: #090909;
  text-align: center;
}

.footer-brand {
  color: var(--color-gold-light);
  font-family: var(--font-heading);
  font-size: 24px;
  font-weight: 700;
  letter-spacing: 4px;
}

.checkout-footer > p {
  margin-top: 7px;
  color: var(--color-muted);
  font-size: 11px;
}

.checkout-footer .copyright {
  margin-top: 18px;
  color: #6f6b63;
  font-size: 10px;
}

/* 21. TABLET */
@media (max-width: 1000px) {
  .checkout-container {
    width: 90%;
  }

  .checkout-layout {
    grid-template-columns: minmax(0, 1.2fr) minmax(270px, 0.8fr);
    gap: 25px;
  }

  .order-summary {
    padding: 23px 17px;
  }

  .checkout-item {
    grid-template-columns: 54px minmax(0, 1fr) auto;
    gap: 9px;
  }

  .checkout-item-image {
    width: 54px;
    height: 67px;
  }
}

/* 22. MOBILE */
@media (max-width: 760px) {
  .checkout-header {
    min-height: 76px;
    padding: 17px 5%;
  }

  .brand-logo {
    font-size: 28px;
    letter-spacing: 3px;
  }

  .brand-logo span {
    font-size: 7px;
    letter-spacing: 2px;
  }

  .back-to-cart {
    font-size: 11px;
  }

  .checkout-container {
    width: 90%;
    padding: 43px 0 60px;
  }

  .checkout-heading {
    margin-bottom: 35px;
  }

  .checkout-heading h1 {
    font-size: clamp(36px, 8vw, 47px);
  }

  .heading-description {
    max-width: 360px;
    margin: 12px auto 0;
    font-size: 12px;
  }

  .checkout-progress {
    gap: 8px;
    margin-top: 28px;
  }

  .progress-step {
    gap: 6px;
    font-size: 10px;
  }

  .step-number {
    width: 24px;
    height: 24px;
    font-size: 10px;
  }

  .progress-line {
    width: 20px;
  }

  .checkout-layout {
    grid-template-columns: minmax(0, 1fr);
    gap: 35px;
  }

  .checkout-form-section {
    order: 1;
  }

  .order-summary {
    position: static;
    order: 2;
    padding: 24px 20px;
  }

  .section-heading h2 {
    font-size: 26px;
  }

  .form-grid {
    gap: 18px 13px;
  }

  .form-group input,
  .form-group textarea {
    font-size: 13px;
  }
}

/* 23. SMALL MOBILE */
@media (max-width: 480px) {
  .checkout-header {
    gap: 10px;
    padding: 15px 4%;
  }

  .brand-logo {
    font-size: 24px;
    letter-spacing: 2.5px;
  }

  .brand-logo span {
    font-size: 6px;
    letter-spacing: 1.6px;
  }

  .back-to-cart {
    font-size: 10px;
  }

  .checkout-container {
    width: 92%;
    padding-top: 35px;
  }

  .checkout-heading h1 {
    font-size: 36px;
  }

  .heading-description {
    font-size: 11px;
  }

  .checkout-progress {
    gap: 6px;
  }

  .progress-step {
    gap: 5px;
    font-size: 9px;
  }

  .step-number {
    width: 22px;
    height: 22px;
  }

  .progress-line {
    width: 13px;
  }

  .form-grid {
    grid-template-columns: minmax(0, 1fr);
    gap: 17px;
  }

  .form-group.full-width {
    grid-column: auto;
  }

  .section-heading {
    gap: 11px;
  }

  .section-number {
    font-size: 22px;
  }

  .section-heading h2 {
    font-size: 25px;
  }

  .section-heading p {
    font-size: 11px;
  }

  .payment-option {
    flex-wrap: wrap;
    gap: 10px;
    padding: 15px 12px;
  }

  .payment-details {
    flex-basis: calc(100% - 85px);
  }

  .payment-badge {
    margin-left: 39px;
  }

  .place-order-btn {
    min-height: 53px;
    font-size: 10px;
    letter-spacing: 1.2px;
  }

  .order-summary {
    padding: 21px 15px;
  }

  .summary-header h2 {
    font-size: 25px;
  }

  .checkout-footer {
    padding: 29px 5% 23px;
  }
}

/* 24. REDUCED MOTION */
@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    scroll-behavior: auto !important;
    transition-duration: 0.01ms !important;
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
  }
}