/*
Theme Name: PeptidePro
Theme URI: https://example.com/peptide-theme
Author: Custom
Description: A bold, modern WooCommerce theme for peptide and biotech e-commerce.
Version: 1.0.0
Requires at least: 6.0
Tested up to: 6.5
Requires PHP: 8.0
License: GNU General Public License v2 or later
License URI: https://www.gnu.org/licenses/gpl-2.0.html
Text Domain: peptidepro
Tags: e-commerce, woocommerce, modern, science, biology
*/

/* =============================================
   TOKENS
   ============================================= */
:root {
  --clr-bg:         #F5FAFF;
  --clr-surface:    #FFFFFF;
  --clr-primary:    #1A7FC4;
  --clr-primary-dk: #105A8E;
  --clr-accent:     #00C9B1;
  --clr-text:       #0D1B2A;
  --clr-muted:      #5A7A94;
  --clr-border:     #C8E0F4;
  --clr-hero-grad:  linear-gradient(135deg, #EAF5FF 0%, #FFFFFF 60%, #E0F9F5 100%);

  --font-display: 'DM Sans', 'Helvetica Neue', sans-serif;
  --font-body:    'Inter', 'Segoe UI', sans-serif;
  --font-mono:    'JetBrains Mono', 'Courier New', monospace;

  --radius-sm: 4px;
  --radius-md: 10px;
  --radius-lg: 20px;
  --radius-pill: 999px;

  --shadow-card: 0 2px 16px rgba(26,127,196,0.10);
  --shadow-hover: 0 8px 32px rgba(26,127,196,0.18);

  --max-width: 1200px;
  --spacing-section: 96px;
}

/* =============================================
   RESET & BASE
   ============================================= */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

html { scroll-behavior: smooth; }

body {
  font-family: var(--font-body);
  font-size: 1rem;
  line-height: 1.65;
  color: var(--clr-text);
  background: var(--clr-bg);
  -webkit-font-smoothing: antialiased;
}

img { max-width: 100%; height: auto; display: block; }
a { color: var(--clr-primary); text-decoration: none; }
a:hover { color: var(--clr-primary-dk); }
ul { list-style: none; }

/* =============================================
   TYPOGRAPHY
   ============================================= */
h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-display);
  font-weight: 700;
  line-height: 1.2;
  color: var(--clr-text);
}
h1 { font-size: clamp(2.2rem, 5vw, 3.8rem); letter-spacing: -0.03em; }
h2 { font-size: clamp(1.7rem, 3.5vw, 2.6rem); letter-spacing: -0.02em; }
h3 { font-size: 1.3rem; }
p  { max-width: 68ch; }

.eyebrow {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--clr-primary);
  display: block;
  margin-bottom: 0.75rem;
}

/* =============================================
   LAYOUT UTILITIES
   ============================================= */
.container {
  width: 100%;
  max-width: var(--max-width);
  margin-inline: auto;
  padding-inline: 24px;
}

.section { padding-block: var(--spacing-section); }

.grid-2 { display: grid; grid-template-columns: repeat(2, 1fr); gap: 32px; }
.grid-3 { display: grid; grid-template-columns: repeat(3, 1fr); gap: 28px; }
.grid-4 { display: grid; grid-template-columns: repeat(4, 1fr); gap: 24px; }

.flex { display: flex; align-items: center; }
.flex-between { display: flex; align-items: center; justify-content: space-between; }

/* =============================================
   BUTTONS
   ============================================= */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 13px 28px;
  border-radius: var(--radius-pill);
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 0.95rem;
  cursor: pointer;
  border: 2px solid transparent;
  transition: all 0.2s ease;
  text-decoration: none;
}
.btn-primary {
  background: var(--clr-primary);
  color: #fff;
  border-color: var(--clr-primary);
}
.btn-primary:hover {
  background: var(--clr-primary-dk);
  border-color: var(--clr-primary-dk);
  color: #fff;
  transform: translateY(-1px);
  box-shadow: 0 6px 20px rgba(26,127,196,0.3);
}
.btn-outline {
  background: transparent;
  color: var(--clr-primary);
  border-color: var(--clr-primary);
}
.btn-outline:hover {
  background: var(--clr-primary);
  color: #fff;
}
.btn-accent {
  background: var(--clr-accent);
  color: var(--clr-text);
  border-color: var(--clr-accent);
}
.btn-accent:hover {
  filter: brightness(1.08);
  transform: translateY(-1px);
}

/* =============================================
   HEADER & NAVIGATION
   ============================================= */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(255,255,255,0.92);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--clr-border);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 70px;
}

.site-logo {
  font-family: var(--font-display);
  font-size: 1.35rem;
  font-weight: 800;
  color: var(--clr-text);
  letter-spacing: -0.03em;
  display: flex;
  align-items: center;
  gap: 10px;
}
.site-logo .logo-dot {
  width: 10px; height: 10px;
  border-radius: 50%;
  background: var(--clr-accent);
  display: inline-block;
}

.primary-nav ul {
  display: flex;
  gap: 36px;
}
.primary-nav a {
  font-size: 0.92rem;
  font-weight: 500;
  color: var(--clr-muted);
  transition: color 0.15s;
}
.primary-nav a:hover,
.primary-nav .current-menu-item a { color: var(--clr-text); }

.header-actions {
  display: flex;
  align-items: center;
  gap: 16px;
}

.cart-icon {
  position: relative;
  display: flex;
  align-items: center;
  color: var(--clr-text);
  font-size: 1.2rem;
}
.cart-icon .cart-count {
  position: absolute;
  top: -6px; right: -8px;
  background: var(--clr-accent);
  color: var(--clr-text);
  font-size: 0.65rem;
  font-weight: 700;
  width: 18px; height: 18px;
  border-radius: 50%;
  display: flex; align-items: center; justify-content: center;
}

/* Mobile menu toggle */
.menu-toggle {
  display: none;
  background: none;
  border: none;
  cursor: pointer;
  flex-direction: column;
  gap: 5px;
  padding: 4px;
}
.menu-toggle span {
  display: block;
  width: 24px; height: 2px;
  background: var(--clr-text);
  border-radius: 2px;
  transition: all 0.25s;
}

/* =============================================
   HERO
   ============================================= */
.hero {
  background: var(--clr-hero-grad);
  padding-block: 100px 80px;
  overflow: hidden;
  position: relative;
}

/* Molecule decoration — pure CSS circles suggesting a chain */
.hero::before {
  content: '';
  position: absolute;
  top: -60px; right: -60px;
  width: 420px; height: 420px;
  border-radius: 50%;
  border: 1.5px solid var(--clr-border);
  opacity: 0.6;
  pointer-events: none;
}
.hero::after {
  content: '';
  position: absolute;
  bottom: -80px; left: 10%;
  width: 240px; height: 240px;
  border-radius: 50%;
  border: 1.5px solid var(--clr-border);
  opacity: 0.4;
  pointer-events: none;
}

.hero-inner {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 64px;
  align-items: center;
}

.hero-content { position: relative; z-index: 1; }

.hero-tag {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: rgba(26,127,196,0.08);
  border: 1px solid var(--clr-border);
  border-radius: var(--radius-pill);
  padding: 6px 14px;
  font-size: 0.78rem;
  font-weight: 600;
  color: var(--clr-primary);
  margin-bottom: 24px;
  font-family: var(--font-mono);
  letter-spacing: 0.06em;
}
.hero-tag::before {
  content: '';
  width: 7px; height: 7px;
  border-radius: 50%;
  background: var(--clr-accent);
  animation: pulse 2s infinite;
}

@keyframes pulse {
  0%, 100% { opacity: 1; transform: scale(1); }
  50%       { opacity: 0.5; transform: scale(1.5); }
}

.hero h1 { margin-bottom: 20px; }
.hero h1 span { color: var(--clr-primary); }

.hero-sub {
  font-size: 1.1rem;
  color: var(--clr-muted);
  margin-bottom: 36px;
  max-width: 48ch;
}

.hero-actions { display: flex; gap: 14px; flex-wrap: wrap; }

.hero-stats {
  display: flex;
  gap: 32px;
  margin-top: 48px;
  padding-top: 32px;
  border-top: 1px solid var(--clr-border);
}
.stat-item {}
.stat-value {
  font-family: var(--font-display);
  font-size: 1.7rem;
  font-weight: 800;
  color: var(--clr-text);
  letter-spacing: -0.03em;
}
.stat-label {
  font-size: 0.78rem;
  color: var(--clr-muted);
  margin-top: 2px;
}

/* Hero visual: animated peptide chain */
.hero-visual {
  display: flex;
  align-items: center;
  justify-content: center;
  position: relative;
  z-index: 1;
}

.peptide-svg-wrap {
  width: 100%;
  max-width: 460px;
}

/* =============================================
   TRUST BAR
   ============================================= */
.trust-bar {
  background: var(--clr-surface);
  border-block: 1px solid var(--clr-border);
  padding-block: 20px;
}
.trust-bar-inner {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 48px;
  flex-wrap: wrap;
}
.trust-item {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--clr-muted);
}
.trust-item svg { color: var(--clr-primary); flex-shrink: 0; }

/* =============================================
   FEATURED PRODUCTS
   ============================================= */
.section-header {
  margin-bottom: 48px;
}
.section-header h2 { margin-bottom: 12px; }
.section-header p { color: var(--clr-muted); font-size: 1.05rem; }

/* =============================================
   PRODUCT CARDS (WooCommerce override)
   ============================================= */
.woocommerce ul.products,
ul.products {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
  gap: 28px;
  list-style: none;
  padding: 0;
  margin: 0;
}

.woocommerce ul.products li.product,
ul.products li.product {
  background: var(--clr-surface);
  border: 1px solid var(--clr-border);
  border-radius: var(--radius-lg);
  overflow: hidden;
  transition: box-shadow 0.2s, transform 0.2s;
  position: relative;
}
.woocommerce ul.products li.product:hover,
ul.products li.product:hover {
  box-shadow: var(--shadow-hover);
  transform: translateY(-3px);
}

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

.woocommerce ul.products li.product .woocommerce-loop-product__title,
ul.products li.product h2 {
  font-family: var(--font-display);
  font-size: 1rem;
  font-weight: 700;
  color: var(--clr-text);
  padding: 16px 16px 4px;
  max-width: 100%;
}

.woocommerce ul.products li.product .price,
ul.products li.product .price {
  padding: 0 16px 12px;
  font-size: 1.05rem;
  font-weight: 700;
  color: var(--clr-primary);
}

.woocommerce ul.products li.product .button,
ul.products li.product .button {
  display: block;
  margin: 0 16px 16px;
  background: var(--clr-primary);
  color: #fff;
  text-align: center;
  border-radius: var(--radius-pill);
  padding: 10px 20px;
  font-weight: 600;
  font-size: 0.9rem;
  border: none;
  cursor: pointer;
  transition: background 0.2s, transform 0.15s;
}
.woocommerce ul.products li.product .button:hover,
ul.products li.product .button:hover {
  background: var(--clr-primary-dk);
  transform: translateY(-1px);
}

/* Onsale badge */
.woocommerce span.onsale {
  background: var(--clr-accent);
  color: var(--clr-text);
  border-radius: var(--radius-pill);
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.06em;
  padding: 4px 12px;
  top: 12px; left: 12px;
}

/* =============================================
   SCIENCE / FEATURE STRIP
   ============================================= */
.features-strip {
  background: var(--clr-text);
  color: #fff;
  padding-block: 80px;
}
.features-strip .section-header h2 { color: #fff; }
.features-strip .section-header p  { color: rgba(255,255,255,0.55); }

.feature-card {
  background: rgba(255,255,255,0.05);
  border: 1px solid rgba(255,255,255,0.1);
  border-radius: var(--radius-lg);
  padding: 32px;
  transition: background 0.2s;
}
.feature-card:hover { background: rgba(26,127,196,0.15); }

.feature-icon {
  width: 52px; height: 52px;
  border-radius: var(--radius-md);
  background: rgba(26,127,196,0.25);
  display: flex; align-items: center; justify-content: center;
  margin-bottom: 20px;
  color: var(--clr-accent);
  font-size: 1.4rem;
}
.feature-card h3 { color: #fff; margin-bottom: 10px; }
.feature-card p  { color: rgba(255,255,255,0.55); font-size: 0.92rem; max-width: 100%; }

/* =============================================
   SINGLE PRODUCT PAGE
   ============================================= */
.woocommerce div.product div.images .woocommerce-product-gallery__image {
  border-radius: var(--radius-lg);
  overflow: hidden;
}

.woocommerce div.product .product_title {
  font-family: var(--font-display);
  font-size: clamp(1.6rem, 3vw, 2.4rem);
  font-weight: 800;
  letter-spacing: -0.025em;
}

.woocommerce div.product p.price,
.woocommerce div.product span.price {
  color: var(--clr-primary);
  font-size: 1.6rem;
  font-weight: 800;
}

.woocommerce div.product form.cart .button,
.woocommerce #respond input#submit,
.woocommerce a.button,
.woocommerce button.button,
.woocommerce input.button {
  background: var(--clr-primary);
  color: #fff;
  border-radius: var(--radius-pill);
  font-family: var(--font-display);
  font-weight: 700;
  padding: 14px 32px;
  font-size: 1rem;
  border: none;
  cursor: pointer;
  transition: background 0.2s, transform 0.15s;
}
.woocommerce div.product form.cart .button:hover,
.woocommerce a.button:hover,
.woocommerce button.button:hover,
.woocommerce input.button:hover {
  background: var(--clr-primary-dk);
  transform: translateY(-1px);
}

/* Tabs */
.woocommerce div.product .woocommerce-tabs ul.tabs {
  border-bottom: 2px solid var(--clr-border);
  padding: 0;
  margin-bottom: 32px;
}
.woocommerce div.product .woocommerce-tabs ul.tabs li {
  border: none;
  background: none;
  padding: 0;
  margin-right: 4px;
}
.woocommerce div.product .woocommerce-tabs ul.tabs li a {
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 0.92rem;
  color: var(--clr-muted);
  padding: 10px 20px;
  display: block;
  border-radius: var(--radius-md) var(--radius-md) 0 0;
}
.woocommerce div.product .woocommerce-tabs ul.tabs li.active a {
  color: var(--clr-primary);
  border-bottom: 2px solid var(--clr-primary);
  margin-bottom: -2px;
}

/* =============================================
   CART & CHECKOUT
   ============================================= */
.woocommerce table.shop_table {
  border: 1px solid var(--clr-border);
  border-radius: var(--radius-lg);
  overflow: hidden;
}
.woocommerce table.shop_table th {
  background: var(--clr-bg);
  font-family: var(--font-display);
  font-size: 0.82rem;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--clr-muted);
  padding: 14px 20px;
}
.woocommerce table.shop_table td { padding: 16px 20px; }

.woocommerce .checkout_coupon,
.woocommerce #payment {
  border-radius: var(--radius-lg);
  border: 1px solid var(--clr-border);
}

/* =============================================
   NEWSLETTER / CTA BANNER
   ============================================= */
.cta-banner {
  background: linear-gradient(120deg, var(--clr-primary) 0%, #0e9de0 100%);
  color: #fff;
  border-radius: var(--radius-lg);
  padding: 60px 48px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 32px;
  flex-wrap: wrap;
  margin-block: var(--spacing-section);
}
.cta-banner h2 { color: #fff; max-width: 30ch; }
.cta-banner p  { color: rgba(255,255,255,0.75); margin-top: 8px; }

.newsletter-form {
  display: flex;
  gap: 0;
  background: rgba(255,255,255,0.15);
  border: 1px solid rgba(255,255,255,0.3);
  border-radius: var(--radius-pill);
  padding: 5px;
  min-width: 320px;
}
.newsletter-form input[type="email"] {
  background: none;
  border: none;
  outline: none;
  padding: 10px 18px;
  font-size: 0.9rem;
  color: #fff;
  flex: 1;
}
.newsletter-form input[type="email"]::placeholder { color: rgba(255,255,255,0.6); }
.newsletter-form button {
  background: #fff;
  color: var(--clr-primary);
  border: none;
  border-radius: var(--radius-pill);
  padding: 10px 22px;
  font-weight: 700;
  font-size: 0.88rem;
  cursor: pointer;
  transition: opacity 0.2s;
}
.newsletter-form button:hover { opacity: 0.9; }

/* =============================================
   FOOTER
   ============================================= */
.site-footer {
  background: var(--clr-text);
  color: rgba(255,255,255,0.6);
  padding-top: 72px;
}

.footer-grid {
  display: grid;
  grid-template-columns: 1.6fr 1fr 1fr 1fr;
  gap: 48px;
  padding-bottom: 56px;
  border-bottom: 1px solid rgba(255,255,255,0.08);
}

.footer-brand .site-logo { color: #fff; margin-bottom: 16px; }
.footer-brand p { font-size: 0.88rem; max-width: 28ch; }

.footer-col h4 {
  font-family: var(--font-display);
  font-size: 0.8rem;
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: #fff;
  margin-bottom: 20px;
}
.footer-col ul { display: flex; flex-direction: column; gap: 10px; }
.footer-col a {
  font-size: 0.88rem;
  color: rgba(255,255,255,0.55);
  transition: color 0.15s;
}
.footer-col a:hover { color: #fff; }

.footer-bottom {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding-block: 24px;
  font-size: 0.82rem;
  flex-wrap: wrap;
  gap: 12px;
}

/* =============================================
   WOO NOTICES
   ============================================= */
.woocommerce-message,
.woocommerce-info {
  background: rgba(26,127,196,0.07);
  border-top: 3px solid var(--clr-primary);
  color: var(--clr-text);
  border-radius: 0 0 var(--radius-md) var(--radius-md);
}
.woocommerce-error {
  background: rgba(220,60,60,0.06);
  border-top: 3px solid #dc3c3c;
  border-radius: 0 0 var(--radius-md) var(--radius-md);
}

/* =============================================
   RESPONSIVE
   ============================================= */
@media (max-width: 1024px) {
  .grid-4 { grid-template-columns: repeat(2, 1fr); }
  .footer-grid { grid-template-columns: 1fr 1fr; }
}

@media (max-width: 768px) {
  :root { --spacing-section: 64px; }
  .hero-inner { grid-template-columns: 1fr; }
  .hero-visual { display: none; }
  .grid-2, .grid-3 { grid-template-columns: 1fr; }
  .primary-nav { display: none; }
  .primary-nav.is-open {
    display: block;
    position: fixed;
    inset: 70px 0 0 0;
    background: var(--clr-surface);
    padding: 32px 24px;
    z-index: 99;
  }
  .primary-nav.is-open ul { flex-direction: column; gap: 24px; }
  .primary-nav.is-open a { font-size: 1.2rem; color: var(--clr-text); }
  .menu-toggle { display: flex; }
  .footer-grid { grid-template-columns: 1fr; gap: 32px; }
  .cta-banner { padding: 36px 24px; }
  .newsletter-form { min-width: unset; width: 100%; }
  .trust-bar-inner { gap: 24px; justify-content: flex-start; }
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { animation: none !important; transition: none !important; }
}