/* ==========================================================================
   Akşen Çerezleri — Official Brand Style System
   Brand Identity: Akşen Signature Red (#ed1c24), Pure White & Sleek Charcoal
   ========================================================================== */

@import url('https://fonts.googleapis.com/css2?family=JetBrains+Mono:wght@400;500;600&family=Manrope:wght@400;500;600;700;800&display=swap');

:root {
  /* Official Logo Palette */
  --color-brand-red: #ed1c24;
  --color-brand-red-hover: #c9141b;
  --color-brand-red-dark: #a80f15;
  --color-brand-red-subtle: #fef2f2;
  --color-brand-red-border: rgba(237, 28, 36, 0.2);

  /* Neutrals */
  --color-white: #ffffff;
  --color-surface-canvas: #ffffff;
  --color-surface-light: #f8f9fa;
  --color-surface-muted: #f1f3f5;
  --color-surface-border: #e5e7eb;
  --color-surface-border-subtle: #f1f3f5;

  /* Dark Sections */
  --color-dark-bg: #121214;
  --color-dark-surface: #1c1c20;
  --color-dark-card: rgba(255, 255, 255, 0.04);
  --color-dark-card-hover: rgba(255, 255, 255, 0.08);
  --color-dark-border: rgba(255, 255, 255, 0.1);
  --color-dark-border-hover: rgba(237, 28, 36, 0.5);

  /* Typography Colors */
  --color-text-heading: #111827;
  --color-text-body: #374151;
  --color-text-muted: #6b7280;
  --color-text-light: #9ca3af;
  --color-text-on-dark: #ffffff;
  --color-text-on-dark-muted: #d1d5db;

  /* Fonts */
  --font-sans: 'Manrope', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  --font-mono: 'JetBrains Mono', SFMono-Regular, Menlo, Monaco, Consolas, monospace;

  /* Typography Scale */
  --text-micro: 10px;
  --text-label: 12px;
  --text-caption: 14px;
  --text-body-sm: 16px;
  --text-body: 18px;
  --tracking-body: -0.18px;
  --leading-body: 1.5;
  --text-subheading: 24px;
  --tracking-subheading: -0.3px;
  --text-heading-sm: 32px;
  --tracking-heading-sm: -0.2px;
  --text-heading: 36px;
  --tracking-heading: -0.25px;
  --text-heading-lg: 40px;
  --tracking-heading-lg: -0.3px;
  --text-display: 48px;
  --tracking-display: -0.45px;
  --text-display-xl: 56px;
  --tracking-display-xl: -0.7px;

  /* Spacing */
  --spacing-8: 8px;
  --spacing-16: 16px;
  --spacing-24: 24px;
  --spacing-32: 32px;
  --spacing-40: 40px;
  --spacing-48: 48px;
  --spacing-56: 56px;
  --spacing-64: 64px;
  --spacing-80: 80px;
  --spacing-96: 96px;
  --spacing-128: 128px;

  /* Layout */
  --page-max-width: 1200px;
  --section-gap: 80px;
  --card-padding: 24px;
  --page-horizontal-margin: 24px;

  /* Border Radius */
  --radius-cards: 18px;
  --radius-badges: 1000px;
  --radius-inputs: 10px;
  --radius-buttons: 1000px;
  --radius-large-cards: 24px;
  --radius-image-frame: 20px;
}

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

html {
  font-size: 16px;
  scroll-behavior: smooth;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

body {
  background-color: var(--color-surface-canvas);
  color: var(--color-text-body);
  font-family: var(--font-sans);
  font-size: var(--text-body);
  line-height: var(--leading-body);
  letter-spacing: var(--tracking-body);
  font-weight: 400;
  min-height: 100vh;
  overflow-x: hidden;
}

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

a {
  color: inherit;
  text-decoration: none;
  transition: opacity 0.2s ease, color 0.2s ease;
}

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

/* ==========================================================================
   Layout Containers
   ========================================================================== */
.container {
  max-width: var(--page-max-width);
  margin-left: auto;
  margin-right: auto;
  padding-left: var(--page-horizontal-margin);
  padding-right: var(--page-horizontal-margin);
  width: 100%;
}

.section {
  padding-top: var(--section-gap);
  padding-bottom: var(--section-gap);
  position: relative;
}

/* ==========================================================================
   Top Promo Banner
   ========================================================================== */
.promo-banner {
  background-color: var(--color-brand-red);
  color: #ffffff;
  height: 40px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: var(--text-label);
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  padding: 0 var(--spacing-16);
  text-align: center;
  z-index: 100;
  position: relative;
}

.promo-banner span {
  opacity: 0.98;
}

.promo-banner .separator {
  margin: 0 var(--spacing-16);
  opacity: 0.5;
}

/* ==========================================================================
   Sticky Navigation Bar
   ========================================================================== */
.navbar-wrap {
  position: sticky;
  top: 0;
  z-index: 90;
  background-color: #ffffff;
  border-bottom: 1px solid var(--color-surface-border);
  transition: box-shadow 0.25s ease;
}

.navbar {
  height: 80px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.brand-logo-link {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  text-decoration: none;
}

.brand-logo-img {
  height: 46px;
  width: auto;
  object-fit: contain;
  transition: transform 0.2s ease;
}

.brand-logo-link:hover .brand-logo-img {
  transform: scale(1.03);
}

.brand-tagline {
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 0.02em;
  color: var(--color-text-muted);
  text-transform: lowercase;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: var(--spacing-32);
  list-style: none;
}

.nav-link {
  font-size: var(--text-caption);
  font-weight: 600;
  color: var(--color-text-heading);
  position: relative;
  padding: 8px 0;
  transition: color 0.2s ease;
}

.nav-link:hover {
  color: var(--color-brand-red);
}

.nav-link.active {
  font-weight: 700;
  color: var(--color-brand-red);
}

.nav-link.active::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 100%;
  height: 2.5px;
  background-color: var(--color-brand-red);
  border-radius: 2px;
}

.nav-actions {
  display: flex;
  align-items: center;
  gap: var(--spacing-16);
}

.menu-toggle {
  display: none;
  background: none;
  border: none;
  cursor: pointer;
  padding: 8px;
  color: var(--color-text-heading);
}

/* ==========================================================================
   Buttons
   ========================================================================== */
.btn-primary {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border-radius: var(--radius-buttons);
  background-color: var(--color-brand-red);
  color: #ffffff;
  font-family: var(--font-sans);
  font-size: var(--text-body-sm);
  font-weight: 700;
  padding: 13px 26px;
  border: none;
  cursor: pointer;
  box-shadow: 0 4px 14px rgba(237, 28, 36, 0.28);
  transition: transform 0.15s ease, background-color 0.2s ease, box-shadow 0.2s ease;
  white-space: nowrap;
}

.btn-primary:hover {
  background-color: var(--color-brand-red-hover);
  box-shadow: 0 6px 20px rgba(237, 28, 36, 0.4);
}

.btn-primary:active {
  transform: scale(0.98);
}

.btn-ghost {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  background-color: transparent;
  border: 1.5px solid rgba(255, 255, 255, 0.85);
  color: #ffffff;
  border-radius: var(--radius-buttons);
  font-family: var(--font-sans);
  font-size: var(--text-body-sm);
  font-weight: 700;
  padding: 13px 24px;
  cursor: pointer;
  box-shadow: none;
  transition: all 0.2s ease;
  white-space: nowrap;
}

.btn-ghost:hover {
  background-color: var(--color-brand-red);
  border-color: var(--color-brand-red);
  color: #ffffff;
  box-shadow: 0 4px 14px rgba(237, 28, 36, 0.3);
}

.btn-inverted {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  background-color: #ffffff;
  border: 1.5px solid var(--color-brand-red);
  color: var(--color-brand-red);
  border-radius: var(--radius-buttons);
  font-family: var(--font-sans);
  font-size: var(--text-body-sm);
  font-weight: 700;
  padding: 13px 24px;
  cursor: pointer;
  box-shadow: none;
  transition: all 0.2s ease;
  white-space: nowrap;
}

.btn-inverted:hover {
  background-color: var(--color-brand-red);
  color: #ffffff;
  box-shadow: 0 4px 14px rgba(237, 28, 36, 0.25);
}

.btn-sm {
  padding: 9px 20px;
  font-size: var(--text-caption);
}

.text-link-arrow {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  background: none;
  border: none;
  border-radius: 0;
  color: var(--color-brand-red);
  font-size: var(--text-caption);
  font-weight: 700;
  text-decoration: underline;
  text-underline-offset: 4px;
  cursor: pointer;
  padding: 0;
  transition: gap 0.2s ease, color 0.2s ease;
}

.text-link-arrow span.arrow {
  display: inline-block;
  transition: transform 0.2s ease;
}

.text-link-arrow:hover {
  color: var(--color-brand-red-hover);
}

.text-link-arrow:hover span.arrow {
  transform: translateX(4px);
}

/* ==========================================================================
   Badges & Pills
   ========================================================================== */
.sale-badge {
  display: inline-flex;
  align-items: center;
  background-color: var(--color-brand-red);
  color: #ffffff;
  border-radius: var(--radius-badges);
  padding: 5px 10px;
  font-size: var(--text-label);
  font-weight: 700;
  line-height: 1;
}

.tag-badge {
  display: inline-flex;
  align-items: center;
  background-color: var(--color-surface-light);
  color: var(--color-text-heading);
  border-radius: var(--radius-badges);
  padding: 5px 10px;
  font-size: var(--text-label);
  font-weight: 700;
  line-height: 1;
  border: 1px solid var(--color-surface-border);
}

.tag-badge.accent-red {
  color: var(--color-brand-red);
  background-color: var(--color-brand-red-subtle);
  border: 1px solid var(--color-brand-red-border);
}

.product-code-pill {
  display: inline-flex;
  align-items: center;
  border: 1px solid var(--color-surface-border);
  border-radius: var(--radius-badges);
  padding: 4px 8px;
  font-family: var(--font-mono);
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0.015em;
  line-height: 1;
  color: var(--color-text-muted);
}

.product-code-pill.on-dark {
  border-color: rgba(255, 255, 255, 0.2);
  color: var(--color-text-on-dark-muted);
}

/* Breadcrumbs Link */
.back-link {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: var(--text-caption);
  font-weight: 700;
  color: var(--color-brand-red);
  margin-bottom: var(--spacing-16);
  text-decoration: none;
  transition: transform 0.2s ease;
}

.back-link:hover {
  transform: translateX(-4px);
}

/* ==========================================================================
   Full Visual Hero Banner (Homepage)
   ========================================================================== */
.hero-banner-full {
  position: relative;
  min-height: 640px;
  display: flex;
  align-items: center;
  overflow: hidden;
  background-color: #121214;
}

.hero-banner-media {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  z-index: 1;
}

.hero-banner-img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center;
  transform: scale(1.02);
  transition: transform 1.2s cubic-bezier(0.16, 1, 0.3, 1);
}

.hero-banner-full:hover .hero-banner-img {
  transform: scale(1.05);
}

/* Multi-layer Shadow & Gradient Overlay for Maximum Readability */
.hero-banner-overlay {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  z-index: 2;
  background: 
    linear-gradient(
      90deg,
      rgba(8, 8, 10, 0.94) 0%,
      rgba(8, 8, 10, 0.85) 40%,
      rgba(8, 8, 10, 0.52) 70%,
      rgba(8, 8, 10, 0.28) 100%
    ),
    linear-gradient(
      180deg,
      rgba(8, 8, 10, 0.6) 0%,
      transparent 25%,
      transparent 70%,
      rgba(8, 8, 10, 0.8) 100%
    );
}

.hero-banner-container {
  position: relative;
  z-index: 3;
  width: 100%;
  padding-top: var(--spacing-80);
  padding-bottom: var(--spacing-80);
}

.hero-banner-content {
  max-width: 660px;
}

.hero-category-label.on-banner {
  background: rgba(237, 28, 36, 0.2);
  border: 1px solid rgba(237, 28, 36, 0.55);
  color: #ffffff;
  backdrop-filter: blur(8px);
  text-shadow: 0 1px 3px rgba(0, 0, 0, 0.5);
}

.hero-category-label.on-banner::before {
  background-color: var(--color-brand-red);
  box-shadow: 0 0 10px rgba(237, 28, 36, 0.9);
}

.hero-headline.on-banner {
  color: #ffffff;
  font-size: clamp(34px, 4.6vw, 56px);
  line-height: 1.14;
  letter-spacing: -0.025em;
  font-weight: 800;
  margin-bottom: var(--spacing-20);
  text-shadow: 0 3px 18px rgba(0, 0, 0, 0.7);
}

.hero-headline.on-banner span.highlight-red {
  color: var(--color-brand-red);
  text-shadow: 0 2px 14px rgba(237, 28, 36, 0.5);
}

.hero-supporting-text.on-banner {
  color: rgba(255, 255, 255, 0.94);
  font-size: 17.5px;
  line-height: 1.6;
  margin-bottom: var(--spacing-32);
  text-shadow: 0 2px 8px rgba(0, 0, 0, 0.6);
  max-width: 580px;
}

.btn-primary.btn-lg {
  padding: 14px 34px;
  font-size: 15.5px;
  font-weight: 700;
  box-shadow: 0 6px 20px rgba(237, 28, 36, 0.45);
}

.btn-banner-ghost {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: rgba(255, 255, 255, 0.1);
  border: 1.5px solid rgba(255, 255, 255, 0.45);
  color: #ffffff;
  border-radius: var(--radius-buttons);
  padding: 13px 28px;
  font-family: var(--font-sans);
  font-size: 15px;
  font-weight: 600;
  text-decoration: none;
  backdrop-filter: blur(10px);
  transition: all 0.25s cubic-bezier(0.16, 1, 0.3, 1);
  text-shadow: 0 1px 3px rgba(0, 0, 0, 0.3);
}

.btn-banner-ghost:hover {
  background-color: #ffffff;
  border-color: #ffffff;
  color: #111827;
  transform: translateY(-2px);
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.25);
  text-shadow: none;
}

/* ==========================================================================
   Hero Section (Split Layout for Subpages)
   ========================================================================== */
.hero-section {
  padding-top: var(--spacing-48);
  padding-bottom: var(--spacing-64);
  background-color: var(--color-surface-canvas);
}

.hero-grid {
  display: grid;
  grid-template-columns: 1.05fr 0.95fr;
  gap: var(--spacing-48);
  align-items: center;
}

.hero-content {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
}

.hero-badge-wrap {
  margin-bottom: var(--spacing-16);
}

.hero-category-label {
  font-family: var(--font-mono);
  font-size: var(--text-label);
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--color-brand-red);
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background-color: var(--color-brand-red-subtle);
  padding: 6px 12px;
  border-radius: var(--radius-badges);
  border: 1px solid var(--color-brand-red-border);
}

.hero-category-label::before {
  content: '';
  display: inline-block;
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background-color: var(--color-brand-red);
}

.hero-headline {
  font-size: var(--text-display);
  line-height: var(--leading-display);
  letter-spacing: var(--tracking-display);
  font-weight: 800;
  color: var(--color-text-heading);
  margin-bottom: var(--spacing-24);
}

.hero-headline span.highlight-red {
  color: var(--color-brand-red);
}

.hero-supporting-text {
  font-size: var(--text-body);
  line-height: var(--leading-body);
  color: var(--color-text-body);
  margin-bottom: var(--spacing-32);
  max-width: 520px;
}

.hero-cta-group {
  display: flex;
  align-items: center;
  gap: var(--spacing-16);
  flex-wrap: wrap;
}

.hero-image-frame {
  position: relative;
  border-radius: var(--radius-image-frame);
  overflow: hidden;
  background-color: var(--color-surface-light);
  aspect-ratio: 4 / 3;
  box-shadow: 0 16px 36px rgba(0, 0, 0, 0.06);
  border: 1px solid var(--color-surface-border);
}

.hero-image-frame img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.6s ease;
}

.hero-image-frame:hover img {
  transform: scale(1.02);
}

.hero-image-caption {
  position: absolute;
  bottom: var(--spacing-16);
  left: var(--spacing-16);
  background-color: rgba(255, 255, 255, 0.95);
  padding: 8px 16px;
  border-radius: var(--radius-badges);
  font-family: var(--font-mono);
  font-size: var(--text-label);
  font-weight: 600;
  color: var(--color-text-heading);
  backdrop-filter: blur(8px);
  border: 1px solid var(--color-surface-border);
}

/* ==========================================================================
   Page Headers
   ========================================================================== */
.page-header-section {
  padding-top: var(--spacing-48);
  padding-bottom: var(--spacing-48);
  background-color: var(--color-surface-light);
  border-bottom: 1px solid var(--color-surface-border);
}

.page-header-content {
  max-width: 760px;
}

.page-header-title {
  font-size: var(--text-display);
  line-height: var(--leading-display);
  letter-spacing: var(--tracking-display);
  font-weight: 800;
  color: var(--color-text-heading);
  margin-top: var(--spacing-8);
  margin-bottom: var(--spacing-16);
}

.page-header-desc {
  font-size: var(--text-body);
  line-height: var(--leading-body);
  color: var(--color-text-body);
}

/* ==========================================================================
   MAIN 2 CATEGORIES (Centered & Highlighted)
   1. Fındık Ürünleri
   2. Çekirdek
   ========================================================================== */
.main-categories-wrapper {
  padding-top: var(--spacing-64);
  padding-bottom: var(--spacing-80);
  background-color: var(--color-surface-canvas);
}

.main-categories-header {
  text-align: center;
  max-width: 700px;
  margin: 0 auto var(--spacing-48);
}

.main-categories-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--spacing-32);
  max-width: 980px;
  margin: 0 auto;
}

.main-category-card {
  background-color: #ffffff;
  border-radius: var(--radius-large-cards);
  overflow: hidden;
  border: 1.5px solid var(--color-surface-border);
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.05);
  display: flex;
  flex-direction: column;
  text-decoration: none;
  color: inherit;
  transition: transform 0.25s ease, box-shadow 0.25s ease, border-color 0.25s ease;
  position: relative;
}

.main-category-card:hover {
  transform: translateY(-6px);
  box-shadow: 0 18px 40px rgba(237, 28, 36, 0.12);
  border-color: var(--color-brand-red);
}

.main-category-media {
  width: 100%;
  aspect-ratio: 16 / 10;
  overflow: hidden;
  background-color: var(--color-surface-muted);
  position: relative;
}

.main-category-media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.5s ease;
}

.main-category-card:hover .main-category-media img {
  transform: scale(1.05);
}

.main-category-badge-pill {
  position: absolute;
  top: 16px;
  left: 16px;
  background-color: var(--color-brand-red);
  color: #ffffff;
  padding: 6px 14px;
  border-radius: var(--radius-badges);
  font-size: var(--text-label);
  font-weight: 700;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  box-shadow: 0 4px 12px rgba(237, 28, 36, 0.35);
}

.main-category-body {
  padding: var(--spacing-32);
  display: flex;
  flex-direction: column;
  flex-grow: 1;
}

.main-category-number {
  font-family: var(--font-mono);
  font-size: var(--text-label);
  color: var(--color-brand-red);
  font-weight: 700;
  letter-spacing: 0.06em;
  margin-bottom: var(--spacing-8);
  display: block;
}

.main-category-title {
  font-size: 28px;
  line-height: 1.2;
  font-weight: 800;
  color: var(--color-text-heading);
  margin-bottom: var(--spacing-12);
}

.main-category-desc {
  font-size: var(--text-body-sm);
  color: var(--color-text-body);
  line-height: 1.5;
  margin-bottom: var(--spacing-24);
  flex-grow: 1;
}

.main-category-action {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-top: var(--spacing-16);
  border-top: 1px solid var(--color-surface-border);
}

.main-category-btn-text {
  font-size: var(--text-body-sm);
  font-weight: 700;
  color: var(--color-brand-red);
  display: flex;
  align-items: center;
  gap: 8px;
}

.main-category-btn-text span.arrow {
  display: inline-block;
  transition: transform 0.2s ease;
}

.main-category-card:hover .main-category-btn-text span.arrow {
  transform: translateX(6px);
}

/* ==========================================================================
   Sub-products Grid (Dark Section / Products Grid)
   ========================================================================== */
.subproducts-section {
  padding-top: var(--spacing-64);
  padding-bottom: var(--spacing-96);
  background-color: var(--color-dark-bg);
  color: #ffffff;
}

.subproducts-grid-2 {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--spacing-32);
  max-width: 900px;
  margin: 0 auto;
}

.subproducts-grid-4 {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: var(--spacing-24);
}

/* ==========================================================================
   Category Filter Tabs (Akşen Brand Identity)
   ========================================================================== */
.category-filter-container {
  margin-bottom: var(--spacing-40);
  display: flex;
  justify-content: flex-start;
  align-items: center;
  width: 100%;
}

.category-filter-nav {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 6px;
  background-color: rgba(255, 255, 255, 0.04);
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: var(--radius-buttons);
  backdrop-filter: blur(12px);
  overflow-x: auto;
  scrollbar-width: none;
  -ms-overflow-style: none;
  max-width: 100%;
}

.category-filter-nav::-webkit-scrollbar {
  display: none;
}

.filter-tab-btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: transparent;
  border: 1px solid transparent;
  color: var(--color-text-on-dark-muted);
  border-radius: var(--radius-buttons);
  padding: 10px 20px;
  font-family: var(--font-sans);
  font-size: 14px;
  font-weight: 600;
  cursor: pointer;
  white-space: nowrap;
  transition: all 0.25s cubic-bezier(0.16, 1, 0.3, 1);
}

.filter-tab-btn:hover {
  color: #ffffff;
  background-color: rgba(255, 255, 255, 0.08);
  border-color: rgba(255, 255, 255, 0.15);
}

.filter-tab-btn.active {
  background-color: var(--color-brand-red);
  color: #ffffff;
  border-color: var(--color-brand-red);
  font-weight: 700;
  box-shadow: 0 4px 16px rgba(237, 28, 36, 0.4);
}

.filter-tab-count {
  font-family: var(--font-mono);
  font-size: 11px;
  font-weight: 700;
  padding: 3px 8px;
  border-radius: 1000px;
  background-color: rgba(255, 255, 255, 0.12);
  color: inherit;
  line-height: 1;
}

.filter-tab-btn.active .filter-tab-count {
  background-color: rgba(0, 0, 0, 0.25);
  color: #ffffff;
}

.products-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: var(--spacing-24);
}

.product-card {
  background-color: var(--color-dark-card);
  border-radius: var(--radius-cards);
  padding: var(--card-padding);
  display: flex;
  flex-direction: column;
  position: relative;
  transition: transform 0.2s ease, background-color 0.2s ease, border-color 0.2s ease;
  border: 1px solid var(--color-dark-border);
}

.product-card:hover {
  background-color: var(--color-dark-card-hover);
  border-color: var(--color-dark-border-hover);
  transform: translateY(-4px);
}

.product-card-top {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: var(--spacing-16);
  min-height: 26px;
}

.product-image-container {
  width: 100%;
  aspect-ratio: 1 / 1;
  border-radius: 12px;
  overflow: hidden;
  background-color: rgba(0, 0, 0, 0.3);
  margin-bottom: var(--spacing-16);
  position: relative;
}

.product-image-container img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.4s ease;
}

.product-card:hover .product-image-container img {
  transform: scale(1.05);
}

.product-weight {
  font-family: var(--font-mono);
  font-size: var(--text-label);
  color: var(--color-text-on-dark-muted);
  margin-bottom: 4px;
  display: block;
}

.product-title {
  font-size: 20px;
  line-height: 1.25;
  font-weight: 700;
  color: #ffffff;
  margin-bottom: var(--spacing-8);
}

.product-desc {
  font-size: var(--text-caption);
  color: var(--color-text-on-dark-muted);
  line-height: 1.45;
  margin-bottom: var(--spacing-16);
  flex-grow: 1;
}

.product-card-bottom {
  display: flex;
  align-items: center;
  justify-content: stretch;
  margin-top: auto;
  padding-top: var(--spacing-16);
  border-top: 1px solid rgba(255, 255, 255, 0.08);
}

.btn-detail {
  width: 100%;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  background-color: rgba(255, 255, 255, 0.06);
  border: 1px solid rgba(255, 255, 255, 0.16);
  color: #ffffff;
  border-radius: var(--radius-buttons);
  padding: 10px 18px;
  font-family: var(--font-sans);
  font-size: 13.5px;
  font-weight: 700;
  cursor: pointer;
  transition: all 0.2s ease;
}

.btn-detail:hover {
  background-color: var(--color-brand-red);
  border-color: var(--color-brand-red);
  color: #ffffff;
  box-shadow: 0 4px 14px rgba(237, 28, 36, 0.35);
  transform: translateY(-1px);
}

/* ==========================================================================
   Homepage Featured Products Showcase (High Contrast Dark Text)
   ========================================================================== */
.featured-products-section {
  background-color: var(--color-surface-light);
  border-top: 1px solid var(--color-surface-border);
  border-bottom: 1px solid var(--color-surface-border);
  padding-top: var(--spacing-80);
  padding-bottom: var(--spacing-80);
}

.featured-products-header {
  display: flex;
  justify-content: space-between;
  align-items: flex-end;
  margin-bottom: var(--spacing-48);
  flex-wrap: wrap;
  gap: var(--spacing-24);
}

.featured-products-header .section-title {
  color: var(--color-text-heading); /* #111827 */
}

.featured-products-header .section-subtitle {
  color: var(--color-text-body); /* #374151 */
}

.featured-products-section .product-card {
  background-color: #ffffff;
  border: 1.5px solid var(--color-surface-border);
  box-shadow: 0 4px 16px rgba(0, 0, 0, 0.04);
}

.featured-products-section .product-card:hover {
  background-color: #ffffff;
  border-color: var(--color-brand-red);
  transform: translateY(-4px);
  box-shadow: 0 12px 28px rgba(237, 28, 36, 0.12);
}

.featured-products-section .product-image-container {
  background-color: var(--color-surface-muted);
}

.featured-products-section .product-title {
  color: var(--color-text-heading); /* #111827 - Koyu ve net */
  font-weight: 800;
}

.featured-products-section .product-desc {
  color: #111827; /* #111827 - Tam koyu, sıfır silik */
  font-size: 14.5px;
  line-height: 1.55;
  font-weight: 500;
}

.featured-products-section .product-weight {
  color: #4b5563; /* Koyu ara renk */
  font-weight: 600;
}

.featured-products-section .product-code-pill {
  border-color: #d1d5db;
  color: #111827;
  background-color: #f9fafb;
  font-weight: 600;
}

.featured-products-section .product-card-bottom {
  border-top: 1px solid var(--color-surface-border);
}

.featured-products-section .btn-detail {
  background-color: var(--color-brand-red);
  border: 1px solid var(--color-brand-red);
  color: #ffffff;
  font-weight: 700;
  box-shadow: 0 4px 12px rgba(237, 28, 36, 0.25);
}

.featured-products-section .btn-detail:hover {
  background-color: var(--color-brand-red-hover);
  border-color: var(--color-brand-red-hover);
  box-shadow: 0 6px 18px rgba(237, 28, 36, 0.35);
}

/* ==========================================================================
   Hakkımızda — Story Section (40/60 Asymmetric Layout)
   ========================================================================== */
.story-section {
  background-color: var(--color-surface-canvas);
  padding-top: var(--spacing-80);
  padding-bottom: var(--spacing-80);
}

.story-grid {
  display: grid;
  grid-template-columns: 40% 60%;
  gap: var(--spacing-64);
  align-items: flex-start;
}

.story-left {
  position: sticky;
  top: 120px;
}

.story-heading {
  font-size: var(--text-heading-lg);
  line-height: var(--leading-heading-lg);
  letter-spacing: var(--tracking-heading-lg);
  font-weight: 800;
  color: var(--color-text-heading);
  margin-top: var(--spacing-16);
}

.story-right {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-24);
}

.story-paragraph {
  font-size: var(--text-body);
  line-height: var(--leading-body);
  color: var(--color-text-body);
}

.story-paragraph strong {
  color: var(--color-text-heading);
  font-weight: 700;
}

.story-values-box {
  background-color: var(--color-surface-light);
  border-radius: var(--radius-cards);
  padding: var(--spacing-32);
  margin-top: var(--spacing-16);
  border: 1px solid var(--color-surface-border);
}

.story-values-title {
  font-size: var(--text-subheading);
  font-weight: 800;
  color: var(--color-text-heading);
  margin-bottom: var(--spacing-16);
}

.story-values-list {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: var(--spacing-16);
}

.story-values-item {
  display: flex;
  gap: var(--spacing-16);
  align-items: baseline;
}

.story-values-bullet {
  font-family: var(--font-mono);
  font-size: var(--text-label);
  color: var(--color-brand-red);
  font-weight: 700;
}

/* ==========================================================================
   Quality Section
   ========================================================================== */
.quality-section {
  background-color: var(--color-dark-bg);
  color: #ffffff;
  padding-top: var(--spacing-96);
  padding-bottom: var(--spacing-96);
}

.quality-header {
  text-align: center;
  max-width: 800px;
  margin-left: auto;
  margin-right: auto;
  margin-bottom: var(--spacing-64);
}

.quality-title {
  font-size: var(--text-heading-lg);
  line-height: var(--leading-heading-lg);
  letter-spacing: var(--tracking-heading-lg);
  font-weight: 800;
  color: #ffffff;
}

.quality-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--spacing-32);
}

.quality-card {
  background-color: var(--color-dark-card);
  border-radius: var(--radius-cards);
  padding: var(--spacing-32);
  border: 1px solid var(--color-dark-border);
  display: flex;
  flex-direction: column;
  transition: border-color 0.2s ease, transform 0.2s ease;
}

.quality-card:hover {
  border-color: var(--color-brand-red-border);
  transform: translateY(-3px);
}

.quality-number {
  font-family: var(--font-mono);
  font-size: 14px;
  font-weight: 700;
  color: var(--color-brand-red);
  margin-bottom: var(--spacing-16);
  display: block;
}

.quality-card-title {
  font-size: var(--text-subheading);
  font-weight: 700;
  color: #ffffff;
  margin-bottom: var(--spacing-16);
}

.quality-card-text {
  font-size: var(--text-body-sm);
  line-height: var(--leading-body-sm);
  color: var(--color-text-on-dark-muted);
}

/* ==========================================================================
   Editorial Brand Image Banner
   ========================================================================== */
.editorial-banner-section {
  background-color: var(--color-surface-canvas);
  padding-top: var(--spacing-80);
  padding-bottom: var(--spacing-80);
}

.editorial-card {
  position: relative;
  border-radius: var(--radius-large-cards);
  overflow: hidden;
  min-height: 440px;
  display: flex;
  align-items: flex-end;
  background-color: var(--color-dark-bg);
}

.editorial-card img {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  opacity: 0.85;
}

.editorial-overlay {
  position: relative;
  z-index: 2;
  background: linear-gradient(to top, rgba(18, 18, 20, 0.95) 0%, rgba(18, 18, 20, 0.6) 50%, transparent 100%);
  width: 100%;
  padding: var(--spacing-48);
  color: #ffffff;
}

.editorial-quote {
  font-size: var(--text-heading-sm);
  line-height: var(--leading-heading-sm);
  letter-spacing: var(--tracking-heading-sm);
  font-weight: 700;
  max-width: 680px;
  margin-bottom: var(--spacing-16);
}

.editorial-author {
  font-family: var(--font-mono);
  font-size: var(--text-label);
  letter-spacing: 0.05em;
  color: var(--color-brand-red);
  text-transform: uppercase;
  font-weight: 600;
}

/* ==========================================================================
   Closing / Call To Action Section
   ========================================================================== */
.closing-section {
  background-color: var(--color-surface-canvas);
  padding-top: var(--spacing-80);
  padding-bottom: var(--spacing-80);
  border-top: 1px solid var(--color-surface-border);
}

.closing-simple-card {
  background-color: var(--color-surface-light);
  border-radius: var(--radius-large-cards);
  padding: var(--spacing-56) var(--spacing-48);
  text-align: center;
  max-width: 860px;
  margin-left: auto;
  margin-right: auto;
  border: 1px solid var(--color-surface-border);
}

.closing-simple-card h2 {
  font-size: var(--text-display);
  line-height: var(--leading-display);
  letter-spacing: var(--tracking-display);
  font-weight: 800;
  color: var(--color-text-heading);
  margin-bottom: var(--spacing-16);
}

.closing-simple-card p {
  font-size: var(--text-body);
  line-height: var(--leading-body);
  color: var(--color-text-body);
  max-width: 580px;
  margin-left: auto;
  margin-right: auto;
  margin-bottom: var(--spacing-32);
}

.closing-simple-actions {
  display: flex;
  justify-content: center;
  align-items: center;
  gap: var(--spacing-16);
  flex-wrap: wrap;
}

/* ==========================================================================
   Contact Channels Pop-up Modal
   ========================================================================== */
.contact-modal-overlay {
  position: fixed;
  top: 0;
  left: 0;
  width: 100vw;
  height: 100vh;
  background-color: rgba(18, 18, 20, 0.75);
  backdrop-filter: blur(8px);
  z-index: 1200;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: var(--spacing-24);
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.25s ease;
}

.contact-modal-overlay.active {
  opacity: 1;
  pointer-events: auto;
}

.contact-modal-card {
  background-color: #ffffff;
  border-radius: var(--radius-large-cards);
  width: 100%;
  max-width: 620px;
  position: relative;
  box-shadow: 0 24px 50px rgba(0, 0, 0, 0.2);
  transform: translateY(20px);
  transition: transform 0.25s ease;
  padding: var(--spacing-40);
  border: 1px solid var(--color-surface-border);
}

.contact-modal-overlay.active .contact-modal-card {
  transform: translateY(0);
}

.contact-modal-header {
  margin-bottom: var(--spacing-24);
}

.contact-modal-logo {
  height: 42px;
  width: auto;
  object-fit: contain;
  margin-bottom: var(--spacing-16);
}

.contact-modal-title {
  font-size: var(--text-heading-sm);
  font-weight: 800;
  color: var(--color-text-heading);
  margin-bottom: var(--spacing-8);
}

.contact-modal-subtitle {
  font-size: var(--text-body-sm);
  color: var(--color-text-muted);
  line-height: var(--leading-body-sm);
}

.contact-channels-list {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-12);
  margin-bottom: var(--spacing-24);
}

.contact-channel-item {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 14px 18px;
  background-color: var(--color-surface-light);
  border-radius: 12px;
  transition: transform 0.15s ease, background-color 0.2s ease, border-color 0.2s ease;
  text-decoration: none;
  color: var(--color-text-heading);
  border: 1px solid var(--color-surface-border);
}

.contact-channel-item:hover {
  background-color: var(--color-brand-red-subtle);
  border-color: var(--color-brand-red-border);
  transform: translateX(4px);
}

.contact-channel-left {
  display: flex;
  align-items: center;
  gap: var(--spacing-16);
}

.contact-channel-icon {
  width: 44px;
  height: 44px;
  border-radius: 50%;
  background-color: var(--color-brand-red);
  color: #ffffff;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 20px;
  flex-shrink: 0;
  box-shadow: 0 4px 10px rgba(237, 28, 36, 0.25);
}

.contact-channel-icon.whatsapp {
  background-color: #25d366;
  box-shadow: 0 4px 10px rgba(37, 211, 102, 0.25);
}

.contact-channel-info h4 {
  font-size: 15px;
  font-weight: 700;
  color: var(--color-text-heading);
  margin-bottom: 2px;
}

.contact-channel-info p {
  font-family: var(--font-mono);
  font-size: 13px;
  color: var(--color-text-muted);
}

.contact-channel-badge {
  font-size: var(--text-label);
  font-weight: 700;
  color: var(--color-brand-red);
  display: flex;
  align-items: center;
  gap: 4px;
}

.contact-modal-footer {
  padding-top: var(--spacing-16);
  border-top: 1px solid var(--color-surface-border);
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: var(--text-caption);
  color: var(--color-text-muted);
}

/* ==========================================================================
   Product Detail Modal (Quick View)
   ========================================================================== */
.modal-overlay {
  position: fixed;
  top: 0;
  left: 0;
  width: 100vw;
  height: 100vh;
  background-color: rgba(18, 18, 20, 0.75);
  backdrop-filter: blur(8px);
  z-index: 1000;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: var(--spacing-24);
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.25s ease;
}

.modal-overlay.active {
  opacity: 1;
  pointer-events: auto;
}

.modal-card {
  background-color: #ffffff;
  border-radius: var(--radius-large-cards);
  width: 100%;
  max-width: 800px;
  overflow: hidden;
  position: relative;
  display: grid;
  grid-template-columns: 1fr 1fr;
  box-shadow: 0 20px 40px rgba(0, 0, 0, 0.2);
  transform: translateY(20px);
  transition: transform 0.25s ease;
  border: 1px solid var(--color-surface-border);
}

.modal-overlay.active .modal-card {
  transform: translateY(0);
}

.modal-close-btn {
  position: absolute;
  top: var(--spacing-16);
  right: var(--spacing-16);
  width: 36px;
  height: 36px;
  border-radius: 50%;
  border: 1px solid var(--color-surface-border);
  background-color: #ffffff;
  color: var(--color-text-heading);
  font-size: 20px;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 10;
  transition: background-color 0.2s ease, color 0.2s ease;
}

.modal-close-btn:hover {
  background-color: var(--color-brand-red);
  color: #ffffff;
  border-color: var(--color-brand-red);
}

.modal-media {
  background-color: var(--color-surface-muted);
  position: relative;
  min-height: 340px;
}

.modal-media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.modal-content {
  padding: var(--spacing-40);
  display: flex;
  flex-direction: column;
}

.modal-badge-row {
  display: flex;
  gap: 8px;
  align-items: center;
  margin-bottom: var(--spacing-16);
}

.modal-title {
  font-size: var(--text-heading-sm);
  font-weight: 800;
  color: var(--color-text-heading);
  line-height: var(--leading-heading-sm);
  margin-bottom: var(--spacing-8);
}

.modal-desc {
  font-size: var(--text-body-sm);
  color: var(--color-text-body);
  line-height: var(--leading-body-sm);
  margin-bottom: var(--spacing-24);
}

.modal-specs-table {
  width: 100%;
  margin-bottom: var(--spacing-24);
  border-collapse: collapse;
  font-family: var(--font-mono);
  font-size: var(--text-label);
}

.modal-specs-table tr {
  border-bottom: 1px solid var(--color-surface-border);
}

.modal-specs-table td {
  padding: 8px 0;
  color: var(--color-text-muted);
}

.modal-specs-table td:last-child {
  text-align: right;
  color: var(--color-text-heading);
  font-weight: 600;
}

.modal-action-row {
  margin-top: auto;
  padding-top: var(--spacing-20);
  border-top: 1px solid var(--color-surface-border);
  display: flex;
  justify-content: stretch;
}

.modal-action-row .btn-primary {
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 14px 28px;
  font-size: 16px;
}

/* ==========================================================================
   Footer
   ========================================================================== */
.footer {
  background-color: var(--color-dark-bg);
  color: #ffffff;
  padding-top: var(--spacing-80);
  padding-bottom: var(--spacing-40);
  border-top: 1px solid rgba(255, 255, 255, 0.1);
}

.footer-top {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1.5fr;
  gap: var(--spacing-48);
  margin-bottom: var(--spacing-64);
}

.footer-brand-logo {
  height: 48px;
  width: auto;
  object-fit: contain;
  margin-bottom: var(--spacing-16);
  background-color: #ffffff;
  padding: 4px 10px;
  border-radius: 12px;
  display: inline-block;
}

.footer-tagline {
  font-size: 14px;
  font-style: italic;
  color: var(--color-text-on-dark-muted);
  margin-bottom: var(--spacing-16);
}

.footer-about {
  font-size: var(--text-caption);
  color: var(--color-text-on-dark-muted);
  line-height: var(--leading-caption);
  max-width: 320px;
}

.footer-col h5 {
  font-family: var(--font-mono);
  font-size: var(--text-label);
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: #ffffff;
  font-weight: 700;
  margin-bottom: var(--spacing-16);
}

.footer-links {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: var(--spacing-12);
}

.footer-link {
  font-size: var(--text-caption);
  color: var(--color-text-on-dark-muted);
  transition: color 0.2s ease;
}

.footer-link:hover {
  color: var(--color-brand-red);
}

.footer-contact-info {
  font-size: var(--text-caption);
  color: var(--color-text-on-dark-muted);
  line-height: 1.6;
}

.footer-contact-info strong {
  color: #ffffff;
}

.footer-bottom {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding-top: var(--spacing-32);
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  font-family: var(--font-mono);
  font-size: var(--text-label);
  color: var(--color-text-on-dark-muted);
}

/* ==========================================================================
   Toast Notification
   ========================================================================== */
.toast-msg {
  position: fixed;
  bottom: 24px;
  right: 24px;
  background-color: var(--color-dark-bg);
  color: #ffffff;
  padding: 14px 22px;
  border-radius: var(--radius-cards);
  font-size: var(--text-caption);
  font-weight: 600;
  box-shadow: 0 10px 25px rgba(0, 0, 0, 0.2);
  transform: translateY(100px);
  opacity: 0;
  transition: all 0.3s ease;
  z-index: 1300;
  border-left: 4px solid var(--color-brand-red);
}

.toast-msg.show {
  transform: translateY(0);
  opacity: 1;
}

/* ==========================================================================
   Responsive Breakpoints (Mobile, Tablet & Large Screens)
   ========================================================================== */

/* Global Mobile Fix: Prevent Horizontal Scroll / Overflow */
html, body {
  overflow-x: hidden;
  width: 100%;
  -webkit-text-size-adjust: 100%;
}

/* --- 0. Large Screens (max-width: 1200px) --- */
@media (max-width: 1200px) {
  .subproducts-grid-4,
  .products-grid {
    grid-template-columns: repeat(3, 1fr);
  }
}

/* --- 1. Tablet & Medium Screens (max-width: 992px) --- */
@media (max-width: 992px) {
  :root {
    --section-gap: 56px;
  }

  .container {
    padding-left: var(--spacing-24);
    padding-right: var(--spacing-24);
  }

  .hero-grid {
    grid-template-columns: 1fr;
    gap: var(--spacing-36);
  }

  .hero-headline {
    font-size: var(--text-heading-lg);
  }

  .main-categories-grid,
  .subproducts-grid-2 {
    grid-template-columns: 1fr;
    max-width: 540px;
    margin-left: auto;
    margin-right: auto;
  }

  .subproducts-grid-4,
  .products-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: var(--spacing-20);
  }

  .story-grid {
    grid-template-columns: 1fr;
    gap: var(--spacing-32);
  }

  .story-left {
    position: static;
  }

  .quality-grid {
    grid-template-columns: 1fr;
    gap: var(--spacing-16);
    max-width: 540px;
    margin-left: auto;
    margin-right: auto;
  }

  .footer-top {
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-40);
  }

  .modal-card {
    grid-template-columns: 1fr;
    max-height: 90vh;
    overflow-y: auto;
  }

  .modal-media {
    min-height: 240px;
    max-height: 280px;
  }
}

/* --- 2. Mobile Landscape & Standard Phones (max-width: 768px) --- */
@media (max-width: 768px) {
  :root {
    --page-horizontal-margin: 16px;
    --card-padding: 20px;
  }

  .container {
    padding-left: var(--spacing-16);
    padding-right: var(--spacing-16);
  }

  /* Top Promo Banner */
  .promo-banner {
    height: auto;
    min-height: 38px;
    padding: 8px 12px;
    font-size: 11px;
    line-height: 1.4;
    flex-direction: column;
    gap: 3px;
  }

  .promo-banner .separator {
    display: none;
  }

  /* Navbar */
  .navbar {
    height: 70px;
  }

  .brand-logo-img {
    height: 38px;
  }

  .brand-tagline {
    display: none;
  }

  .nav-actions {
    gap: 10px;
  }

  .nav-actions .btn-sm {
    padding: 8px 14px;
    font-size: 12.5px;
  }

  .menu-toggle {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 40px;
    height: 40px;
    padding: 8px;
  }

  .nav-links {
    display: none;
    position: fixed;
    top: 70px;
    left: 0;
    right: 0;
    width: 100%;
    background-color: #ffffff;
    flex-direction: column;
    align-items: stretch;
    padding: var(--spacing-20) var(--spacing-24) var(--spacing-24);
    box-shadow: 0 16px 36px rgba(0, 0, 0, 0.12);
    border-bottom: 2.5px solid var(--color-brand-red);
    gap: 0;
    z-index: 100;
    max-height: calc(100vh - 70px);
    overflow-y: auto;
  }

  .nav-links.mobile-open {
    display: flex;
  }

  .nav-links li {
    width: 100%;
  }

  .nav-links .nav-link {
    display: block;
    padding: 14px 4px;
    font-size: 16px;
    font-weight: 600;
    border-bottom: 1px solid var(--color-surface-border);
  }

  .nav-links .nav-link.active::after {
    display: none;
  }

  .nav-links .nav-link.active {
    color: var(--color-brand-red);
    padding-left: 10px;
    border-left: 3px solid var(--color-brand-red);
  }

  /* Homepage Full Banner Hero */
  .hero-banner-full {
    min-height: 520px;
  }

  .hero-banner-container {
    padding-top: var(--spacing-48);
    padding-bottom: var(--spacing-48);
  }

  .hero-banner-overlay {
    background: linear-gradient(
      180deg,
      rgba(8, 8, 10, 0.75) 0%,
      rgba(8, 8, 10, 0.88) 50%,
      rgba(8, 8, 10, 0.96) 100%
    );
  }

  .hero-headline.on-banner {
    font-size: clamp(28px, 7.5vw, 38px);
    line-height: 1.18;
    margin-bottom: var(--spacing-16);
  }

  .hero-supporting-text.on-banner {
    font-size: 15px;
    line-height: 1.55;
    margin-bottom: var(--spacing-24);
  }

  .hero-cta-group {
    flex-direction: column;
    width: 100%;
    gap: 12px;
  }

  .hero-cta-group .btn-primary,
  .hero-cta-group .btn-banner-ghost,
  .hero-cta-group .btn-inverted {
    width: 100%;
    justify-content: center;
    text-align: center;
  }

  /* Split Layout Hero (About Page) */
  .hero-section {
    padding-top: var(--spacing-32);
    padding-bottom: var(--spacing-48);
  }

  .hero-headline {
    font-size: clamp(28px, 7vw, 36px);
    line-height: 1.2;
  }

  .hero-supporting-text {
    font-size: 15px;
    line-height: 1.55;
  }

  .hero-image-frame {
    aspect-ratio: 16 / 10;
    max-height: 280px;
  }

  /* Page Headers (Subpages) */
  .page-header-section {
    padding: var(--spacing-32) 0;
  }

  .page-header-title {
    font-size: clamp(28px, 6.5vw, 36px);
  }

  .page-header-desc {
    font-size: 15px;
    line-height: 1.5;
  }

  /* Main Category Cards */
  .main-category-media {
    height: 220px;
  }

  .main-category-body {
    padding: 24px 20px;
  }

  .main-category-title {
    font-size: 22px;
  }

  /* Featured Products Header */
  .featured-products-header {
    flex-direction: column;
    align-items: flex-start;
    gap: var(--spacing-16);
    margin-bottom: var(--spacing-32);
  }

  .featured-products-header .btn-inverted {
    width: 100%;
    justify-content: center;
  }

  /* Category Filter Navigation Bar (Fındık) */
  .category-filter-container {
    margin-bottom: var(--spacing-24);
    width: 100%;
    overflow-x: auto;
    -webkit-overflow-scrolling: touch;
    padding-bottom: 4px;
  }

  .category-filter-nav {
    padding: 4px;
    gap: 6px;
    width: max-content;
  }

  .filter-tab-btn {
    padding: 8px 14px;
    font-size: 13px;
    gap: 6px;
  }

  .filter-tab-count {
    font-size: 10.5px;
    padding: 2px 6px;
  }

  /* Editorial Card */
  .editorial-card {
    min-height: 320px;
  }

  .editorial-overlay {
    padding: var(--spacing-24);
  }

  .editorial-quote {
    font-size: 18px;
    line-height: 1.45;
  }

  /* Closing Simple Card */
  .closing-simple-card {
    padding: var(--spacing-36) var(--spacing-20);
  }

  .closing-simple-card h2 {
    font-size: clamp(24px, 6vw, 32px);
  }

  .closing-simple-actions {
    flex-direction: column;
    width: 100%;
    gap: 12px;
  }

  .closing-simple-actions .btn-primary,
  .closing-simple-actions .btn-inverted {
    width: 100%;
    justify-content: center;
  }

  /* Modals (Mobile Responsive Bottom Sheet / Centered) */
  .modal-overlay {
    padding: var(--spacing-12);
    align-items: flex-end;
  }

  .modal-card {
    border-radius: 20px 20px 0 0;
    width: 100%;
    max-height: 88vh;
    overflow-y: auto;
    -webkit-overflow-scrolling: touch;
  }

  .modal-media {
    height: 200px;
    min-height: 200px;
  }

  .modal-content {
    padding: var(--spacing-20);
  }

  .modal-title {
    font-size: 20px;
  }

  .modal-desc {
    font-size: 14px;
    line-height: 1.5;
  }

  .modal-specs-table td {
    padding: 6px 0;
    font-size: 13px;
  }

  .modal-close-btn {
    top: 10px;
    right: 10px;
    width: 38px;
    height: 38px;
    font-size: 24px;
    background-color: rgba(255, 255, 255, 0.95);
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.2);
    color: #111827;
  }

  /* Contact Channels Modal */
  .contact-modal-overlay {
    padding: var(--spacing-12);
    align-items: flex-end;
  }

  .contact-modal-card {
    padding: var(--spacing-24) var(--spacing-16) var(--spacing-20);
    border-radius: 20px 20px 0 0;
    width: 100%;
    max-height: 90vh;
    overflow-y: auto;
    -webkit-overflow-scrolling: touch;
  }

  .contact-modal-title {
    font-size: 20px;
  }

  .contact-modal-subtitle {
    font-size: 13px;
    line-height: 1.45;
  }

  .contact-channel-item {
    padding: 12px 14px;
  }

  .contact-channel-icon {
    width: 38px;
    height: 38px;
    font-size: 18px;
  }

  .contact-channel-info h4 {
    font-size: 14px;
  }

  .contact-channel-info p {
    font-size: 12px;
  }

  .contact-channel-badge {
    font-size: 11.5px;
    padding: 5px 9px;
  }

  .contact-modal-footer {
    flex-direction: column;
    gap: 8px;
    align-items: center;
    text-align: center;
    font-size: 12px;
  }

  /* Footer */
  .footer {
    padding-top: var(--spacing-48);
    padding-bottom: var(--spacing-32);
  }

  .footer-top {
    grid-template-columns: 1fr;
    gap: var(--spacing-32);
  }

  .footer-bottom {
    flex-direction: column;
    gap: 10px;
    text-align: center;
    align-items: center;
  }
}

/* --- 3. Extra Small Phones (max-width: 540px) --- */
@media (max-width: 540px) {
  .subproducts-grid-4,
  .subproducts-grid-2,
  .products-grid {
    grid-template-columns: 1fr;
    max-width: 380px;
    margin-left: auto;
    margin-right: auto;
  }

  .product-image-container {
    max-height: 240px;
  }

  .product-title {
    font-size: 18px;
  }

  .product-desc {
    font-size: 13.5px;
  }

  .main-category-media {
    height: 190px;
  }

  .main-category-title {
    font-size: 20px;
  }

  .main-category-action {
    flex-direction: column;
    align-items: flex-start;
    gap: 8px;
  }

  .hero-banner-full {
    min-height: 480px;
  }
}