/* ============================================
   Global Textile Supplies — Design System CSS
   ============================================ */

/* --- CSS Custom Properties --- */
:root {
  /* Colors - Text */
  --color-text: #3a3a3a;
  --color-text-secondary: #333232;
  --color-text-dark: #212121;
  --color-text-hover: #606060;
  --color-footer-hover: #5a5858;
  --color-black: #000;

  /* Colors - Backgrounds */
  --color-bg: #fff;
  --color-bg-light: #f7f7f7;
  --color-bg-alt: #f4f4f4;
  --color-bg-pale: #f2f2f2;
  --color-bg-footer: #f6f6f6;

  /* Colors - Accent */
  --color-announcement: #24312d;
  --color-announcement-hover: #415851;
  --color-sale: #ea0606;
  --color-error: #d20000;
  --color-error-dark: #651818;
  --color-success: #1f873d;
  --color-overlay: #685858;

  /* Colors - Borders */
  --color-border: #ebebeb;
  --color-input-border: #cccccc;
  --color-input-focus: #b3b3b3;
  --color-footer-hr: #dddddd;

  /* Typography */
  --font-heading: 'Shippori Mincho', serif;
  --font-body: 'Figtree', sans-serif;
  --font-fallback: HelveticaNeue, 'Helvetica Neue', Helvetica, Arial, sans-serif;

  /* Spacing */
  --page-padding: 55px;
  --page-padding-mobile: 22px;
  --max-width: 1200px;

  /* Transitions */
  --transition-fast: .2s cubic-bezier(.44,.13,.48,.87);
  --transition-medium: .4s cubic-bezier(.29,.63,.44,1);
}

/* --- Reset / Normalize --- */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  font-size: 16px;
  -webkit-text-size-adjust: 100%;
}

body {
  font-family: var(--font-body), var(--font-fallback);
  font-size: 16px;
  line-height: 1.5;
  color: var(--color-text);
  background-color: var(--color-bg);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

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

a {
  color: var(--color-text);
  text-decoration: none;
  transition: color var(--transition-fast);
}

a:hover {
  color: var(--color-text-hover);
}

ul, ol {
  list-style: none;
}

button, input, select, textarea {
  font-family: inherit;
  font-size: inherit;
  line-height: inherit;
  color: inherit;
}

h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-heading);
  font-weight: 700;
  line-height: 1.2;
  margin-bottom: 17.5px;
}

h1 { font-size: 2.25em; }
h2 { font-size: 1.3125em; letter-spacing: .1em; }
h3 { font-size: 1.6875em; }
h4 { font-size: 1.125em; }
h5 { font-size: .9375em; }
h6 { font-size: .875em; }

p {
  margin-bottom: 1em;
}

hr {
  border: 0;
  border-bottom: 1px solid var(--color-footer-hr);
  margin: 30px 0;
}

/* --- Layout --- */
.page-width {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 var(--page-padding);
}

.text-center { text-align: center; }

/* Flexbox Grid */
.grid {
  display: flex;
  flex-wrap: wrap;
  margin-left: -27.5px;
}

.grid__item {
  padding-left: 27.5px;
  width: 100%;
}

.grid--gutterless {
  margin-left: 0;
}

.grid--gutterless > .grid__item {
  padding-left: 0;
}

/* Grid sizes */
.one-whole { width: 100%; }
.one-half { width: 50%; }
.one-third { width: 33.333%; }
.two-thirds { width: 66.667%; }
.one-quarter { width: 25%; }
.one-fifth { width: 20%; }
.one-sixth { width: 16.667%; }
.five-sixths { width: 83.333%; }

/* Content centering for content pages */
.content-centered {
  max-width: 83.333%;
  margin: 0 auto;
}

/* --- Announcement Bar --- */
.announcement-bar {
  background-color: var(--color-announcement);
  color: #fff;
  text-align: center;
  font-weight: 700;
  font-size: 12px;
  padding: 8px 10px;
  transition: background-color var(--transition-fast);
}

.announcement-bar a {
  color: #fff;
  text-decoration: none;
}

.announcement-bar:hover {
  background-color: var(--color-announcement-hover);
}

/* --- Site Header --- */
.site-header {
  background-color: var(--color-bg);
  padding: 15px 0;
}

.site-header__inner {
  display: flex;
  align-items: center;
  justify-content: center;
  position: relative;
}

.site-header__logo {
  display: block;
  max-width: 250px;
  margin: 0 auto;
}

.site-header__logo img {
  width: 100%;
  height: auto;
}

/* Mobile menu toggle */
.mobile-menu-toggle {
  display: none;
  position: absolute;
  right: 0;
  top: 50%;
  transform: translateY(-50%);
  background: none;
  border: none;
  cursor: pointer;
  padding: 8px;
}

.mobile-menu-toggle svg {
  width: 24px;
  height: 24px;
  fill: var(--color-text);
}

/* --- Desktop Navigation --- */
.site-nav {
  text-align: center;
  margin: 10px 0 15px;
  border-bottom: 1px solid var(--color-border);
  padding-bottom: 15px;
}

.site-nav__list {
  display: flex;
  justify-content: center;
  align-items: center;
  gap: 0;
}

.site-nav__item {
  position: relative;
}

.site-nav__link {
  display: block;
  padding: 3px 12px;
  font-family: var(--font-body);
  font-size: 15px;
  font-weight: 400;
  color: var(--color-text);
  border-bottom: 1px solid transparent;
  transition: border-color var(--transition-fast), color var(--transition-fast);
}

.site-nav__link:hover,
.site-nav__link--active {
  border-bottom-color: var(--color-text);
  color: var(--color-text);
}

.site-nav__link--has-dropdown::after {
  content: '';
  display: inline-block;
  width: 0;
  height: 0;
  margin-left: 5px;
  vertical-align: middle;
  border-left: 4px solid transparent;
  border-right: 4px solid transparent;
  border-top: 4px solid currentColor;
}

/* Dropdown */
.site-nav__dropdown {
  display: none;
  position: absolute;
  top: 100%;
  left: 50%;
  transform: translateX(-50%);
  background: var(--color-bg);
  border: 1px solid var(--color-border);
  z-index: 7;
  padding: 15px 25px;
  min-width: 200px;
  text-align: left;
  white-space: nowrap;
}

.site-nav__item:hover .site-nav__dropdown,
.site-nav__dropdown--open {
  display: block;
}

.site-nav__dropdown-columns {
  display: flex;
  gap: 30px;
}

.site-nav__dropdown-col {
  min-width: 150px;
}

.site-nav__child-link--parent {
  font-weight: 700;
  display: block;
  padding: 5px 0;
  color: var(--color-text);
}

.site-nav__child-link {
  display: block;
  padding: 3px 0;
  font-size: 14px;
  color: var(--color-text-secondary);
  transition: color var(--transition-fast);
}

.site-nav__child-link:hover {
  color: var(--color-text-hover);
}

/* --- Mobile Navigation --- */
.mobile-nav {
  display: none;
  background-color: var(--color-bg-pale);
  padding: 20px;
}

.mobile-nav--open {
  display: block;
}

.mobile-nav__list {
  list-style: none;
}

.mobile-nav__link {
  display: block;
  padding: 10px 0;
  font-weight: 700;
  font-size: 16px;
  color: var(--color-text);
  border-bottom: 1px solid var(--color-border);
}

.mobile-nav__sublist {
  padding-left: 20px;
}

.mobile-nav__sublink {
  display: block;
  padding: 8px 0;
  font-size: 14px;
  font-weight: 400;
  color: var(--color-text-secondary);
  border-bottom: 1px solid var(--color-border);
}

.mobile-nav__toggle {
  float: right;
  background: none;
  border: none;
  font-size: 20px;
  cursor: pointer;
  color: var(--color-text);
  padding: 0 5px;
}

/* --- Hero Sections --- */
.hero {
  position: relative;
  background-size: cover;
  background-position: center;
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
  color: #fff;
  min-height: 450px;
  overflow: hidden;
}

.hero--large {
  min-height: 550px;
}

.hero--small {
  min-height: 350px;
}

.hero--collection {
  min-height: 300px;
}

.hero__overlay {
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background-color: var(--color-overlay);
  opacity: .23;
  z-index: 1;
}

.hero__content {
  position: relative;
  z-index: 2;
  padding: 40px 20px;
  max-width: 800px;
}

.hero__title {
  font-family: var(--font-heading);
  font-size: 4.1875em;
  font-weight: 700;
  text-shadow: 0 0 4px rgba(0,0,0,.4);
  margin-bottom: 15px;
  color: #fff;
}

.hero__subtitle {
  font-family: var(--font-heading);
  font-size: 1.5em;
  text-shadow: 0 0 4px rgba(0,0,0,.4);
  margin-bottom: 27.5px;
  color: #fff;
}

.hero__btn {
  margin-top: 27.5px;
}

/* --- Buttons --- */
.btn {
  display: inline-block;
  background-color: var(--color-text);
  color: #fff;
  border: 1px solid transparent;
  border-radius: 2px;
  padding: 10px 18px;
  font-family: var(--font-heading);
  font-weight: 700;
  font-size: 14px;
  text-transform: uppercase;
  letter-spacing: .08em;
  cursor: pointer;
  transition: background-color var(--transition-fast);
  text-decoration: none;
  line-height: 1;
}

.btn:hover {
  background-color: var(--color-text-hover);
  color: #fff;
}

.btn--secondary {
  background-color: transparent;
  color: var(--color-text);
  border-color: var(--color-text);
}

.btn--secondary:hover {
  color: var(--color-text-hover);
  border-color: var(--color-text-hover);
  background-color: transparent;
}

.btn--secondary-accent {
  background-color: #fff;
  color: var(--color-text);
  border-color: var(--color-text);
}

.btn--secondary-accent:hover {
  color: var(--color-text-hover);
  border-color: var(--color-text-hover);
}

/* --- Forms --- */
.form-group {
  margin-bottom: 15px;
}

.form-group label {
  display: block;
  margin-bottom: 5px;
  font-weight: 400;
  font-size: 14px;
}

.form-input,
.form-textarea,
.form-select {
  width: 100%;
  border: 1px solid var(--color-input-border);
  border-radius: 2px;
  background-color: transparent;
  color: var(--color-text-secondary);
  padding: 10px 18px;
  font-size: 16px;
  transition: border-color var(--transition-fast);
}

.form-input:focus,
.form-textarea:focus,
.form-select:focus {
  outline: none;
  border-color: var(--color-input-focus);
}

.form-textarea {
  min-height: 120px;
  resize: vertical;
}

.form-row {
  display: flex;
  gap: 20px;
}

.form-row .form-group {
  flex: 1;
}

/* --- Product Card --- */
.product-card {
  display: block;
  text-decoration: none;
  color: var(--color-text);
  margin-bottom: 35px;
}

.product-card__image-wrapper {
  position: relative;
  width: 100%;
  margin: 0 auto 15px;
  overflow: hidden;
  background-color: var(--color-bg-light);
  transition: opacity var(--transition-fast);
}

.product-card__image-wrapper img {
  width: 100%;
  height: auto;
  display: block;
}

.product-card:hover .product-card__image-wrapper {
  opacity: .8;
}

.product-card__title {
  font-family: var(--font-heading);
  font-weight: 700;
  font-size: 14px;
  border-bottom: 1px solid transparent;
  transition: border-color .1s cubic-bezier(.44,.13,.48,.87);
  display: inline;
  line-height: 1.4;
}

.product-card:hover .product-card__title {
  border-bottom-color: var(--color-text);
}

.product-card__price {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  margin-top: 5px;
  font-size: 14px;
  color: var(--color-text-secondary);
}

.product-card__specs {
  font-size: 13px;
  color: var(--color-text-secondary);
  margin-top: 4px;
  line-height: 1.4;
}

.product-card__enquire {
  display: inline-block;
  margin-top: 8px;
  font-size: 13px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: .08em;
  color: var(--color-text);
  border-bottom: 1px solid var(--color-text);
  transition: color var(--transition-fast), border-color var(--transition-fast);
}

.product-card__enquire:hover {
  color: var(--color-text-hover);
  border-bottom-color: var(--color-text-hover);
}

/* Product Grid */
.product-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 25px;
}

/* --- Feature Columns --- */
.feature-row {
  padding: 35px 0;
  text-align: center;
}

.feature-row__title {
  margin-bottom: 30px;
}

.feature-columns {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 30px;
}

.feature-column {
  text-align: center;
}

.feature-column__image {
  display: block;
  width: 100%;
  margin-bottom: 15px;
  transition: opacity var(--transition-fast);
}

.feature-column:hover .feature-column__image {
  opacity: .8;
}

.feature-column__title {
  font-family: var(--font-heading);
  font-weight: 700;
  font-size: 1em;
  margin-bottom: 8px;
}

.feature-column__title a {
  border-bottom: 1px solid transparent;
  transition: border-color var(--transition-fast);
}

.feature-column__title a:hover {
  border-bottom-color: var(--color-text);
}

/* --- Category Card (for landing pages) --- */
.category-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 30px;
  margin: 35px 0;
}

.category-card {
  display: block;
  text-align: center;
  text-decoration: none;
  color: var(--color-text);
}

.category-card__image {
  width: 100%;
  margin-bottom: 15px;
  transition: opacity var(--transition-fast);
}

.category-card:hover .category-card__image {
  opacity: .8;
}

.category-card__title {
  font-family: var(--font-heading);
  font-weight: 700;
  font-size: 1.125em;
  border-bottom: 1px solid transparent;
  display: inline;
  transition: border-color var(--transition-fast);
}

.category-card:hover .category-card__title {
  border-bottom-color: var(--color-text);
}

/* --- Section Styling --- */
.section {
  padding: 40px 0;
}

.section--grey {
  background-color: var(--color-bg-light);
}

.section--alt {
  background-color: var(--color-bg-alt);
}

.section__title {
  text-align: center;
  margin-bottom: 30px;
}

/* --- Collection Page Header --- */
.collection-header {
  text-align: center;
  padding: 30px 0;
}

.collection-header h1 {
  margin-bottom: 10px;
}

.collection-header p {
  color: var(--color-text-secondary);
  max-width: 700px;
  margin: 0 auto 20px;
}

/* Product group sections for grouped pages */
.product-group {
  margin-bottom: 40px;
}

.product-group__title {
  font-family: var(--font-heading);
  font-weight: 700;
  font-size: 1.3125em;
  margin-bottom: 20px;
  padding-bottom: 10px;
  border-bottom: 1px solid var(--color-border);
}

/* --- FAQ --- */
.faq-list {
  max-width: 800px;
  margin: 0 auto;
}

.faq-item {
  margin-bottom: 25px;
  border-bottom: 1px solid var(--color-border);
  padding-bottom: 25px;
}

.faq-item:last-child {
  border-bottom: none;
}

.faq-question {
  font-family: var(--font-heading);
  font-weight: 700;
  font-size: 1.125em;
  margin-bottom: 10px;
  cursor: pointer;
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.faq-question::after {
  content: '+';
  font-size: 1.5em;
  font-weight: 400;
  line-height: 1;
  transition: transform var(--transition-fast);
}

.faq-item--open .faq-question::after {
  content: '−';
}

.faq-answer {
  display: none;
  padding-top: 5px;
  line-height: 1.6;
}

.faq-item--open .faq-answer {
  display: block;
}

/* --- About Page Pillars --- */
.pillars {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 30px;
  margin: 40px 0;
  text-align: center;
}

.pillar {
  padding: 20px;
}

.pillar__icon {
  font-size: 48px;
  margin-bottom: 15px;
  display: block;
}

.pillar__title {
  font-family: var(--font-heading);
  font-weight: 700;
  font-size: 1em;
  margin-bottom: 10px;
}

.pillar__text {
  font-size: 14px;
  line-height: 1.5;
  color: var(--color-text-secondary);
}

/* --- Footer --- */
.site-footer {
  background-color: var(--color-bg-footer);
  color: var(--color-text-secondary);
  margin-top: 55px;
  padding: 45px 0 35px;
}

.footer-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 40px;
  margin-bottom: 30px;
}

.site-footer h4 {
  font-family: var(--font-heading);
  font-weight: 700;
  margin-bottom: 15px;
}

.footer-links {
  list-style: none;
}

.footer-links li {
  margin-bottom: 8px;
}

.footer-links a {
  color: var(--color-text-secondary);
  font-size: 14px;
  transition: color var(--transition-fast), border-color var(--transition-fast);
  border-bottom: 1px solid transparent;
}

.footer-links a:hover {
  color: var(--color-footer-hover);
  border-bottom-color: var(--color-footer-hover);
}

.footer-newsletter {
  display: flex;
  gap: 10px;
}

.footer-newsletter .form-input {
  flex: 1;
}

.footer-bottom {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding-top: 20px;
  border-top: 1px solid var(--color-footer-hr);
}

.footer-social {
  display: flex;
  gap: 15px;
}

.footer-social a {
  color: var(--color-text-secondary);
  font-size: 20px;
  transition: color var(--transition-fast);
}

.footer-social a:hover {
  color: var(--color-footer-hover);
}

.footer-social svg {
  width: 20px;
  height: 20px;
  fill: currentColor;
}

.footer-copyright {
  font-size: .8125em;
  color: var(--color-text-secondary);
}

.footer-payment {
  display: flex;
  gap: 5px;
  align-items: center;
}

.footer-payment svg {
  height: 24px;
  width: auto;
}

/* --- 404 Page --- */
.page-404 {
  text-align: center;
  padding: 80px 20px;
  min-height: 50vh;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
}

.page-404 h1 {
  font-size: 3em;
  margin-bottom: 20px;
}

.page-404 p {
  font-size: 1.125em;
  margin-bottom: 30px;
  color: var(--color-text-secondary);
}

/* --- Utilities --- */
.visually-hidden {
  position: absolute;
  overflow: hidden;
  clip: rect(0 0 0 0);
  height: 1px;
  width: 1px;
  margin: -1px;
  padding: 0;
  border: 0;
}

.mt-0 { margin-top: 0; }
.mb-0 { margin-bottom: 0; }

/* --- Responsive --- */
@media only screen and (max-width: 749px) {
  :root {
    --page-padding: 22px;
  }

  h1 { font-size: 2.0625em; }
  h2 { font-size: 1.125em; }
  h3 { font-size: 1.3125em; }
  h4 { font-size: 1em; }
  h5 { font-size: .875em; }
  h6 { font-size: .8125em; }

  p { font-size: .9375em; }

  .hero__title { font-size: 2.1875em; }
  .hero__subtitle { font-size: 1.25em; }
  .hero--large { min-height: 350px; }
  .hero--small { min-height: 250px; }
  .hero--collection { min-height: 180px; }

  .btn {
    padding: 8px 15px;
  }

  .form-input, .form-textarea, .form-select {
    padding: 8px 15px;
  }

  /* Show mobile nav toggle */
  .mobile-menu-toggle {
    display: block;
  }

  /* Hide desktop nav */
  .site-nav {
    display: none;
  }

  /* Grids go mobile */
  .product-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 15px;
  }

  .feature-columns {
    grid-template-columns: 1fr;
  }

  .category-grid {
    grid-template-columns: 1fr;
    gap: 20px;
  }

  .pillars {
    grid-template-columns: repeat(2, 1fr);
    gap: 20px;
  }

  .footer-grid {
    grid-template-columns: 1fr;
    gap: 25px;
  }

  .footer-bottom {
    flex-direction: column;
    gap: 15px;
    text-align: center;
  }

  .form-row {
    flex-direction: column;
    gap: 0;
  }

  .content-centered {
    max-width: 100%;
  }

  .grid {
    margin-left: 0;
  }

  .grid__item {
    padding-left: 0;
  }
}

@media only screen and (min-width: 750px) and (max-width: 989px) {
  .product-grid {
    grid-template-columns: repeat(3, 1fr);
  }

  .pillars {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media only screen and (min-width: 990px) {
  .site-header__inner {
    padding: 30px 0 0;
  }
}