/* ==========================================================================
   NovaPulse Theme - Mobile First Styles
   ========================================================================== */

/* --- CSS Variables --- */
:root {
  --color-bg: #0f1419;
  --color-bg-alt: #1a2332;
  --color-bg-card: #1e2a3a;
  --color-surface: #243044;
  --color-primary: #00d4aa;
  --color-primary-dark: #00b894;
  --color-accent: #6c5ce7;
  --color-text: #e8edf2;
  --color-text-muted: #8899aa;
  --color-border: #2d3f54;
  --color-white: #ffffff;
  --font-sans: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Oxygen, Ubuntu, Cantarell, sans-serif;
  --font-display: "Segoe UI", system-ui, sans-serif;
  --radius-sm: 6px;
  --radius-md: 12px;
  --radius-lg: 20px;
  --shadow: 0 4px 24px rgba(0, 0, 0, 0.3);
  --transition: 0.25s ease;
  --container-pad: 16px;
  --header-height: 60px;
}

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

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

body {
  font-family: var(--font-sans);
  background-color: var(--color-bg);
  color: var(--color-text);
  line-height: 1.6;
  min-height: 100vh;
  overflow-x: hidden;
}

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

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

a:hover {
  color: var(--color-primary-dark);
}

h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-display);
  font-weight: 700;
  line-height: 1.25;
  color: var(--color-white);
}

p {
  margin-bottom: 1rem;
}

ul, ol {
  list-style: none;
}

.screen-reader-text {
  clip: rect(1px, 1px, 1px, 1px);
  position: absolute !important;
  height: 1px;
  width: 1px;
  overflow: hidden;
}

.container {
  width: 100%;
  max-width: 1200px;
  margin: 0 auto;
  padding-left: var(--container-pad);
  padding-right: var(--container-pad);
}

/* --- Buttons --- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 12px 28px;
  font-size: 0.875rem;
  font-weight: 600;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  border-radius: var(--radius-sm);
  border: 2px solid transparent;
  cursor: pointer;
  transition: all var(--transition);
  text-decoration: none;
}

.btn-primary {
  background: var(--color-primary);
  color: var(--color-bg);
  border-color: var(--color-primary);
}

.btn-primary:hover {
  background: var(--color-primary-dark);
  border-color: var(--color-primary-dark);
  color: var(--color-bg);
}

.btn-outline {
  background: transparent;
  color: var(--color-primary);
  border-color: var(--color-primary);
}

.btn-outline:hover {
  background: var(--color-primary);
  color: var(--color-bg);
}

.btn-lg {
  padding: 16px 36px;
  font-size: 1rem;
}

/* --- Header --- */
.site-header {
  position: sticky;
  top: 0;
  z-index: 1000;
  background: rgba(15, 20, 25, 0.95);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--color-border);
  height: var(--header-height);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: var(--header-height);
  gap: 12px;
}

.site-branding .custom-logo {
  max-height: 40px;
  width: auto;
}

.site-title {
  font-size: 1.25rem;
  font-weight: 800;
  color: var(--color-white);
  letter-spacing: -0.02em;
}

.site-title:hover {
  color: var(--color-primary);
}

.menu-toggle {
  display: flex;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  width: 40px;
  height: 40px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 8px;
  z-index: 1001;
}

.menu-toggle-bar {
  display: block;
  width: 100%;
  height: 2px;
  background: var(--color-text);
  border-radius: 2px;
  transition: var(--transition);
}

.menu-toggle.active .menu-toggle-bar:nth-child(1) {
  transform: translateY(7px) rotate(45deg);
}

.menu-toggle.active .menu-toggle-bar:nth-child(2) {
  opacity: 0;
}

.menu-toggle.active .menu-toggle-bar:nth-child(3) {
  transform: translateY(-7px) rotate(-45deg);
}

.main-navigation {
  position: fixed;
  top: var(--header-height);
  left: 0;
  right: 0;
  bottom: 0;
  background: var(--color-bg);
  transform: translateX(100%);
  transition: transform var(--transition);
  overflow-y: auto;
  padding: 24px var(--container-pad);
  z-index: 999;
}

.main-navigation.is-open {
  transform: translateX(0);
}

.main-navigation ul {
  display: flex;
  flex-direction: column;
  gap: 0;
}

.main-navigation li {
  border-bottom: 1px solid var(--color-border);
}

.main-navigation a {
  display: block;
  padding: 16px 0;
  font-size: 1.125rem;
  font-weight: 500;
  color: var(--color-text);
}

.main-navigation a:hover {
  color: var(--color-primary);
}

.header-actions {
  display: flex;
  align-items: center;
  gap: 12px;
}

.header-search,
.header-cart {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  color: var(--color-text);
  position: relative;
  border-radius: var(--radius-sm);
  transition: var(--transition);
}

.header-search:hover,
.header-cart:hover {
  color: var(--color-primary);
  background: var(--color-bg-alt);
}

.cart-count {
  position: absolute;
  top: 2px;
  right: 2px;
  background: var(--color-primary);
  color: var(--color-bg);
  font-size: 0.625rem;
  font-weight: 700;
  width: 18px;
  height: 18px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
}

/* --- Hero --- */
.hero-section {
  padding: 32px 0 48px;
}

.hero-content {
  text-align: center;
  margin-bottom: 32px;
}

.hero-label {
  display: inline-block;
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--color-primary);
  margin-bottom: 12px;
}

.hero-title {
  font-size: 2rem;
  margin-bottom: 16px;
  background: linear-gradient(135deg, var(--color-white), var(--color-primary));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.hero-desc {
  font-size: 1rem;
  color: var(--color-text-muted);
  max-width: 480px;
  margin: 0 auto 24px;
}

.hero-image {
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow);
}

.hero-image img {
  width: 100%;
  object-fit: cover;
  aspect-ratio: 4/3;
}

/* --- Sections --- */
.section {
  padding: 48px 0;
}

.section-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 24px;
}

.section-title {
  font-size: 1.5rem;
}

.section-link {
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--color-primary);
}

.section-label {
  display: inline-block;
  font-size: 0.6875rem;
  font-weight: 700;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--color-accent);
  margin-bottom: 8px;
}

/* --- Product Grid --- */
.product-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 16px;
}

.product-card,
.woocommerce ul.products li.product {
  background: var(--color-bg-card);
  border-radius: var(--radius-md);
  overflow: hidden;
  border: 1px solid var(--color-border);
  transition: transform var(--transition), box-shadow var(--transition);
}

.product-card:hover,
.woocommerce ul.products li.product:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow);
}

.product-card-link {
  display: block;
  color: inherit;
  text-decoration: none;
}

.product-card-image,
.woocommerce ul.products li.product .woocommerce-loop-product__link img {
  aspect-ratio: 4/3;
  object-fit: cover;
  width: 100%;
}

.product-card-body {
  padding: 12px;
}

.product-category {
  font-size: 0.6875rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--color-text-muted);
}

.product-title,
.woocommerce ul.products li.product .woocommerce-loop-product__title {
  font-size: 0.875rem;
  margin: 4px 0 8px;
  color: var(--color-white);
}

.product-price,
.woocommerce ul.products li.product .price {
  font-size: 0.875rem;
  font-weight: 700;
  color: var(--color-primary);
}

/* --- Promo Banner --- */
.promo-banner {
  padding: 32px 0;
}

.promo-banner-inner {
  display: flex;
  flex-direction: column;
  gap: 24px;
  background: var(--color-bg-alt);
  border-radius: var(--radius-lg);
  overflow: hidden;
  border: 1px solid var(--color-border);
}

.promo-banner-image img {
  width: 100%;
  aspect-ratio: 16/10;
  object-fit: cover;
}

.promo-banner-content {
  padding: 0 20px 24px;
}

.promo-banner-content h2 {
  font-size: 1.375rem;
  margin-bottom: 12px;
}

.promo-banner-content p {
  color: var(--color-text-muted);
  font-size: 0.9375rem;
  margin-bottom: 20px;
}

/* --- Spotlight --- */
.spotlight-grid {
  display: flex;
  flex-direction: column;
  gap: 24px;
}

.spotlight-content h2 {
  font-size: 1.375rem;
  margin-bottom: 12px;
}

.spotlight-content p {
  color: var(--color-text-muted);
  font-size: 0.9375rem;
  margin-bottom: 20px;
}

.spotlight-image {
  border-radius: var(--radius-md);
  overflow: hidden;
}

.spotlight-image img {
  width: 100%;
  aspect-ratio: 4/3;
  object-fit: cover;
}

.spotlight-reverse .spotlight-grid {
  flex-direction: column-reverse;
}

/* --- Testimonial --- */
.testimonial-section {
  background: var(--color-bg-alt);
}

.testimonial-card {
  text-align: center;
  padding: 32px 16px;
  max-width: 640px;
  margin: 0 auto;
}

.testimonial-stars {
  display: flex;
  justify-content: center;
  gap: 4px;
  color: #fbbf24;
  margin-bottom: 16px;
}

.testimonial-quote p {
  font-size: 1rem;
  font-style: italic;
  color: var(--color-text);
  line-height: 1.7;
  margin-bottom: 16px;
}

.testimonial-author {
  font-size: 0.8125rem;
  font-weight: 600;
  color: var(--color-text-muted);
  font-style: normal;
}

/* --- Features --- */
.features-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 24px;
}

.feature-item {
  text-align: center;
  padding: 24px 16px;
  background: var(--color-bg-card);
  border-radius: var(--radius-md);
  border: 1px solid var(--color-border);
}

.feature-icon {
  display: flex;
  justify-content: center;
  margin-bottom: 12px;
  color: var(--color-primary);
}

.feature-item h3 {
  font-size: 1rem;
  margin-bottom: 8px;
}

.feature-item p {
  font-size: 0.8125rem;
  color: var(--color-text-muted);
  margin-bottom: 0;
}

/* --- Blog Grid --- */
.blog-grid,
.posts-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 20px;
}

.blog-card {
  background: var(--color-bg-card);
  border-radius: var(--radius-md);
  overflow: hidden;
  border: 1px solid var(--color-border);
  transition: transform var(--transition);
}

.blog-card:hover {
  transform: translateY(-3px);
}

.blog-card-link {
  display: block;
  color: inherit;
  text-decoration: none;
}

.blog-card-image img {
  width: 100%;
  aspect-ratio: 16/10;
  object-fit: cover;
}

.blog-card-body {
  padding: 16px;
}

.post-meta {
  font-size: 0.75rem;
  color: var(--color-text-muted);
  margin-bottom: 8px;
}

.post-meta a {
  color: var(--color-text-muted);
}

.blog-card-title {
  font-size: 1rem;
  margin-bottom: 8px;
  color: var(--color-white);
}

.blog-card-excerpt {
  font-size: 0.8125rem;
  color: var(--color-text-muted);
  margin-bottom: 0;
}

/* --- CTA --- */
.cta-section {
  position: relative;
  padding: 64px 0;
  overflow: hidden;
}

.cta-bg {
  position: absolute;
  inset: 0;
}

.cta-bg img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.cta-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, rgba(15, 20, 25, 0.92), rgba(0, 212, 170, 0.15));
}

.cta-content {
  position: relative;
  z-index: 1;
  text-align: center;
}

.cta-content h2 {
  font-size: 1.75rem;
  margin-bottom: 12px;
}

.cta-content p {
  color: var(--color-text-muted);
  max-width: 480px;
  margin: 0 auto 24px;
}

/* --- Footer --- */
.site-footer {
  background: var(--color-bg-alt);
  border-top: 1px solid var(--color-border);
  padding-top: 40px;
}

.footer-widgets {
  display: grid;
  grid-template-columns: 1fr;
  gap: 32px;
  margin-bottom: 32px;
}

.footer-widget-title {
  font-size: 0.875rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  margin-bottom: 16px;
  color: var(--color-primary);
}

.footer-widget {
  font-size: 0.875rem;
  color: var(--color-text-muted);
}

.footer-widget a {
  color: var(--color-text-muted);
}

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

.friend-links-section {
  padding: 24px 0;
  border-top: 1px solid var(--color-border);
  border-bottom: 1px solid var(--color-border);
}

.friend-links-title {
  font-size: 0.8125rem;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--color-text-muted);
  margin-bottom: 12px;
  text-align: center;
}

.friend-links-list {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 8px 16px;
}

.friend-links-list li a {
  font-size: 0.8125rem;
  color: var(--color-text-muted);
  padding: 4px 0;
  transition: var(--transition);
}

.friend-links-list li a:hover {
  color: var(--color-primary);
}

.footer-nav {
  padding: 16px 0;
}

.footer-menu {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 8px 20px;
}

.footer-menu a {
  font-size: 0.8125rem;
  color: var(--color-text-muted);
}

.footer-bottom {
  padding: 20px 0;
  text-align: center;
}

.footer-copyright {
  font-size: 0.75rem;
  color: var(--color-text-muted);
}

/* --- Single / Page --- */
.single-post-main,
.page-main,
.archive-main,
.search-main,
.error-main {
  padding: 32px 0 48px;
}

.entry-header {
  margin-bottom: 24px;
}

.entry-title {
  font-size: 1.75rem;
  margin-top: 8px;
}

.entry-featured-image {
  border-radius: var(--radius-md);
  overflow: hidden;
  margin-bottom: 24px;
}

.entry-featured-image img {
  width: 100%;
  aspect-ratio: 16/9;
  object-fit: cover;
}

.entry-content {
  font-size: 1rem;
  line-height: 1.8;
  color: var(--color-text);
}

.entry-content h2,
.entry-content h3 {
  margin: 1.5em 0 0.5em;
}

.entry-content p {
  margin-bottom: 1.25em;
}

.entry-content img {
  border-radius: var(--radius-sm);
  margin: 1em 0;
}

.post-tags {
  margin-top: 24px;
  font-size: 0.8125rem;
}

.post-tags a {
  display: inline-block;
  padding: 4px 12px;
  margin: 4px;
  background: var(--color-bg-card);
  border-radius: var(--radius-sm);
  color: var(--color-text-muted);
}

.archive-header,
.search-header {
  margin-bottom: 32px;
}

.archive-title,
.search-title {
  font-size: 1.5rem;
}

.search-form {
  display: flex;
  gap: 8px;
  margin-bottom: 32px;
}

.search-field {
  flex: 1;
  padding: 12px 16px;
  background: var(--color-bg-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  color: var(--color-text);
  font-size: 1rem;
}

.search-field:focus {
  outline: none;
  border-color: var(--color-primary);
}

.error-404 {
  text-align: center;
  padding: 48px 0;
}

.error-code {
  font-size: 5rem;
  color: var(--color-primary);
  line-height: 1;
  margin-bottom: 16px;
}

.error-404 h2 {
  margin-bottom: 12px;
}

.error-404 p {
  color: var(--color-text-muted);
  margin-bottom: 24px;
}

/* --- Comments --- */
.comments-area {
  margin-top: 40px;
  padding-top: 32px;
  border-top: 1px solid var(--color-border);
}

.comments-title {
  font-size: 1.25rem;
  margin-bottom: 24px;
}

.comment-list {
  margin-bottom: 32px;
}

.comment-list .comment {
  padding: 16px 0;
  border-bottom: 1px solid var(--color-border);
}

.comment-form input[type="text"],
.comment-form input[type="email"],
.comment-form input[type="url"],
.comment-form textarea {
  width: 100%;
  padding: 12px;
  background: var(--color-bg-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  color: var(--color-text);
  margin-bottom: 12px;
  font-family: inherit;
}

.comment-form input[type="submit"] {
  background: var(--color-primary);
  color: var(--color-bg);
  border: none;
  padding: 12px 28px;
  border-radius: var(--radius-sm);
  font-weight: 600;
  cursor: pointer;
}

/* --- Pagination --- */
.pagination,
.woocommerce nav.woocommerce-pagination {
  margin-top: 32px;
  text-align: center;
}

.pagination .nav-links,
.woocommerce nav.woocommerce-pagination ul {
  display: flex;
  justify-content: center;
  gap: 8px;
  flex-wrap: wrap;
}

.pagination .page-numbers,
.woocommerce nav.woocommerce-pagination ul li a,
.woocommerce nav.woocommerce-pagination ul li span {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 40px;
  height: 40px;
  padding: 0 12px;
  background: var(--color-bg-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  color: var(--color-text);
  font-size: 0.875rem;
}

.pagination .page-numbers.current,
.woocommerce nav.woocommerce-pagination ul li span.current {
  background: var(--color-primary);
  color: var(--color-bg);
  border-color: var(--color-primary);
}

.no-results {
  text-align: center;
  padding: 48px 0;
}

.no-results h2 {
  margin-bottom: 12px;
}

/* ==========================================================================
   Tablet (768px+)
   ========================================================================== */
@media (min-width: 768px) {
  :root {
    --container-pad: 24px;
    --header-height: 70px;
  }

  .menu-toggle {
    display: none;
  }

  .main-navigation {
    position: static;
    transform: none;
    background: none;
    padding: 0;
    overflow: visible;
    flex: 1;
    display: flex;
    justify-content: center;
  }

  .main-navigation ul {
    flex-direction: row;
    gap: 8px;
  }

  .main-navigation li {
    border-bottom: none;
  }

  .main-navigation a {
    padding: 8px 16px;
    font-size: 0.875rem;
    border-radius: var(--radius-sm);
  }

  .main-navigation a:hover {
    background: var(--color-bg-alt);
  }

  .hero-section {
    display: grid;
    grid-template-columns: 1fr 1fr;
    align-items: center;
    gap: 40px;
    padding: 64px 0;
  }

  .hero-content {
    text-align: left;
    margin-bottom: 0;
  }

  .hero-desc {
    margin: 0 0 24px;
  }

  .hero-title {
    font-size: 2.75rem;
  }

  .product-grid {
    grid-template-columns: repeat(3, 1fr);
    gap: 20px;
  }

  .promo-banner-inner {
    flex-direction: row;
    align-items: center;
  }

  .promo-banner-image {
    flex: 1;
  }

  .promo-banner-content {
    flex: 1;
    padding: 32px;
  }

  .promo-banner-content h2 {
    font-size: 1.75rem;
  }

  .spotlight-grid {
    flex-direction: row;
    align-items: center;
    gap: 40px;
  }

  .spotlight-content,
  .spotlight-image {
    flex: 1;
  }

  .spotlight-reverse .spotlight-grid {
    flex-direction: row;
  }

  .spotlight-content h2 {
    font-size: 1.75rem;
  }

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

  .blog-grid,
  .posts-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 24px;
  }

  .footer-widgets {
    grid-template-columns: repeat(3, 1fr);
  }

  .entry-title {
    font-size: 2.25rem;
  }
}

/* ==========================================================================
   Desktop (1024px+)
   ========================================================================== */
@media (min-width: 1024px) {
  .hero-title {
    font-size: 3.25rem;
  }

  .section {
    padding: 72px 0;
  }

  .section-title {
    font-size: 1.75rem;
  }

  .product-grid {
    grid-template-columns: repeat(4, 1fr);
    gap: 24px;
  }

  .features-grid {
    grid-template-columns: repeat(4, 1fr);
  }

  .blog-grid,
  .posts-grid {
    grid-template-columns: repeat(3, 1fr);
  }

  .cta-content h2 {
    font-size: 2.25rem;
  }

  .testimonial-quote p {
    font-size: 1.125rem;
  }
}

/* ==========================================================================
   Large Desktop (1280px+)
   ========================================================================== */
@media (min-width: 1280px) {
  :root {
    --container-pad: 32px;
  }

  .hero-section {
    padding: 80px 0;
    gap: 60px;
  }

  .hero-title {
    font-size: 3.5rem;
  }
}