/* ==========================================================================
   BEAUTYHOME - Kurumsal E-Ticaret Ön Hazırlık Web Sitesi Stilleri
   Tasarım Dili: Premium, Sade, Güven Veren, Teknolojik ve Modern
   Renk Paleti: Antrasit (#0F172A), Kırık Beyaz (#FAFAFA), Şampanya Vurgu (#C5A880)
   ========================================================================== */

/* --------------------------------------------------------------------------
   1. CSS DEĞİŞKENLERİ VE TASARIM SİSTEMİ (DESIGN TOKENS)
   -------------------------------------------------------------------------- */
:root {
  /* Renk Paleti */
  --bg-primary: #FFFFFF;
  --bg-secondary: #FAFAFA;
  --bg-tertiary: #F1F5F9;
  --bg-dark: #0F172A;
  --bg-dark-surface: #1E293B;

  --text-primary: #0F172A;
  --text-secondary: #475569;
  --text-muted: #64748B;
  --text-light: #F8FAFC;
  --text-light-muted: #94A3B8;

  --accent-gold: #C5A880;
  --accent-gold-hover: #B09269;
  --accent-gold-light: #FBF8F3;
  --accent-gold-border: #E8DCC9;

  --border-light: #E2E8F0;
  --border-subtle: #F1F5F9;
  --border-dark: #334155;

  /* Tipografi */
  --font-main: 'Plus Jakarta Sans', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Helvetica, Arial, sans-serif;
  
  /* Gölgeler */
  --shadow-sm: 0 2px 8px rgba(15, 23, 42, 0.04);
  --shadow-md: 0 10px 30px -5px rgba(15, 23, 42, 0.06);
  --shadow-lg: 0 20px 40px -15px rgba(15, 23, 42, 0.1);
  --shadow-sticky: 0 4px 20px rgba(15, 23, 42, 0.08);

  /* Yuvarlama (Border Radius) */
  --radius-sm: 8px;
  --radius-md: 14px;
  --radius-lg: 24px;
  --radius-full: 9999px;

  /* Animasyon Geçiş Zamanlaması */
  --transition-fast: 0.2s cubic-bezier(0.4, 0, 0.2, 1);
  --transition-normal: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  --transition-slow: 0.5s cubic-bezier(0.4, 0, 0.2, 1);

  /* Layout Genişliği */
  --container-max: 1280px;
}

/* --------------------------------------------------------------------------
   2. TEMEL SIFIRLAMA VE GENEL STİLLER (RESET & BASE)
   -------------------------------------------------------------------------- */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

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

body {
  font-family: var(--font-main);
  background-color: var(--bg-primary);
  color: var(--text-primary);
  line-height: 1.6;
  font-weight: 400;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

/* Tipografi Temelleri */
h1, h2, h3, h4, h5, h6 {
  color: var(--text-primary);
  font-weight: 700;
  line-height: 1.25;
  letter-spacing: -0.02em;
}

p {
  color: var(--text-secondary);
}

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

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

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

/* Kapsayıcı (Container) */
.container {
  width: 100%;
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 0 1.5rem;
}

/* Kısım Düzeni (Section Spacing) */
.section-padding {
  padding: 6rem 0;
}

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

/* --------------------------------------------------------------------------
   3. BAŞLIK VE METİN ŞABLONLARI (TYPOGRAPHY TEMPLATES)
   -------------------------------------------------------------------------- */
.section-header {
  text-align: center;
  max-width: 760px;
  margin: 0 auto 4rem auto;
}

.section-badge {
  display: inline-block;
  font-size: 0.8125rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  color: var(--accent-gold);
  background-color: var(--accent-gold-light);
  border: 1px solid var(--accent-gold-border);
  padding: 0.4rem 1rem;
  border-radius: var(--radius-full);
  margin-bottom: 1rem;
}

.section-title {
  font-size: 2.5rem;
  font-weight: 800;
  color: var(--text-primary);
  margin-bottom: 1rem;
}

.section-description {
  font-size: 1.125rem;
  color: var(--text-secondary);
  line-height: 1.7;
}

/* --------------------------------------------------------------------------
   4. BUTONLAR VE İNTERAKTİF ELEMANLAR (BUTTONS & UI ELEMENTS)
   -------------------------------------------------------------------------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.6rem;
  padding: 0.875rem 1.75rem;
  font-size: 0.9375rem;
  font-weight: 600;
  border-radius: var(--radius-full);
  transition: all var(--transition-normal);
  cursor: pointer;
  border: 1px solid transparent;
  white-space: nowrap;
}

.btn-primary {
  background-color: var(--text-primary);
  color: #FFFFFF;
}

.btn-primary:hover {
  background-color: #1E293B;
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
}

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

.btn-secondary:hover {
  background-color: var(--bg-secondary);
  border-color: var(--text-primary);
  transform: translateY(-2px);
}

.btn-accent {
  background-color: var(--accent-gold);
  color: #FFFFFF;
}

.btn-accent:hover {
  background-color: var(--accent-gold-hover);
  transform: translateY(-2px);
  box-shadow: 0 10px 25px -5px rgba(197, 168, 128, 0.4);
}

/* --------------------------------------------------------------------------
   5. SABİT ÜST MENÜ (HEADER & NAVBAR)
   -------------------------------------------------------------------------- */
.header {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  z-index: 1000;
  background-color: rgba(255, 255, 255, 0.92);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid rgba(226, 232, 240, 0.6);
  transition: all var(--transition-normal);
}

.header.scrolled {
  background-color: rgba(255, 255, 255, 0.98);
  box-shadow: var(--shadow-sticky);
  border-bottom-color: var(--border-light);
}

.navbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 85px;
  transition: height var(--transition-normal);
}

.header.scrolled .navbar {
  height: 70px;
}

/* Logo Stili */
.logo {
  display: inline-flex;
  align-items: center;
  user-select: none;
}

.logo-img {
  height: 25px;
  width: auto;
  object-fit: contain;
  display: block;
  image-rendering: -webkit-optimize-contrast;
  image-rendering: crisp-edges;
  transition: transform var(--transition-fast), height var(--transition-normal);
}

.header.scrolled .logo-img {
  height: 21px;
}

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

.footer-brand .logo-img {
  height: 28px;
  filter: brightness(0) invert(1);
}

/* Menü Linkleri */
.nav-menu {
  display: flex;
  align-items: center;
  gap: 2.25rem;
  list-style: none;
}

.nav-link {
  font-size: 0.9375rem;
  font-weight: 500;
  color: var(--text-secondary);
  position: relative;
  padding: 0.5rem 0;
}

.nav-link::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 0;
  height: 2px;
  background-color: var(--accent-gold);
  transition: width var(--transition-normal);
  border-radius: 2px;
}

.nav-link:hover,
.nav-link.active {
  color: var(--text-primary);
}

.nav-link.active::after,
.nav-link:hover::after {
  width: 100%;
}

.nav-actions {
  display: flex;
  align-items: center;
  gap: 1rem;
}

/* Mobil Hamburger Menü Butonu */
.mobile-toggle {
  display: none;
  background: none;
  border: none;
  cursor: pointer;
  padding: 0.5rem;
  color: var(--text-primary);
  z-index: 1001;
}

.mobile-toggle svg {
  width: 28px;
  height: 28px;
}

/* --------------------------------------------------------------------------
   6. HERO ALANI (HERO SECTION)
   -------------------------------------------------------------------------- */
.hero-section {
  padding-top: 10.5rem;
  padding-bottom: 6rem;
  background: linear-gradient(180deg, #FFFFFF 0%, #FAFAFA 100%);
  position: relative;
  overflow: hidden;
}

.hero-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 4rem;
  align-items: center;
}

.hero-content {
  max-width: 580px;
}

.hero-subhead {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  font-size: 0.8125rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.14em;
  color: var(--accent-gold);
  margin-bottom: 1.25rem;
}

.hero-subhead::before {
  content: '';
  width: 20px;
  height: 2px;
  background-color: var(--accent-gold);
  display: inline-block;
}

.hero-title {
  font-size: 3.5rem;
  font-weight: 800;
  line-height: 1.15;
  color: var(--text-primary);
  margin-bottom: 1.5rem;
  letter-spacing: -0.03em;
}

.hero-description {
  font-size: 1.125rem;
  color: var(--text-secondary);
  line-height: 1.75;
  margin-bottom: 2.25rem;
}

.hero-buttons {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
  margin-bottom: 3.5rem;
}

/* Güven Rozetleri (Trust Badges) */
.trust-badges {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1.25rem 1.5rem;
  padding-top: 2rem;
  border-top: 1px solid var(--border-light);
}

.badge-item {
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

.badge-icon {
  width: 38px;
  height: 38px;
  border-radius: var(--radius-sm);
  background-color: var(--accent-gold-light);
  border: 1px solid var(--accent-gold-border);
  color: var(--accent-gold);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

.badge-text {
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--text-primary);
  line-height: 1.3;
}

/* Hero Görsel Alanı */
.hero-visual {
  position: relative;
}

.hero-image-wrapper {
  position: relative;
  border-radius: var(--radius-lg);
  overflow: hidden;
  background-color: var(--bg-primary);
  box-shadow: var(--shadow-lg);
  border: 1px solid var(--border-light);
}

.hero-image-wrapper img {
  width: 100%;
  height: auto;
  object-fit: cover;
  display: block;
  transition: transform var(--transition-slow);
}

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

/* Yüzen Kart Efekti */
.hero-float-card {
  position: absolute;
  bottom: -1.5rem;
  left: -1.5rem;
  background: rgba(255, 255, 255, 0.95);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border: 1px solid var(--border-light);
  padding: 1rem 1.5rem;
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-md);
  display: flex;
  align-items: center;
  gap: 1rem;
  z-index: 2;
}

.float-icon {
  width: 42px;
  height: 42px;
  background-color: var(--bg-dark);
  color: #FFFFFF;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
}

.float-title {
  font-size: 0.875rem;
  font-weight: 700;
  color: var(--text-primary);
}

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

/* --------------------------------------------------------------------------
   7. MARKA TANITIM ALANI (BRAND INTRO & FORMULA)
   -------------------------------------------------------------------------- */
.intro-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 4rem;
  align-items: center;
}

.intro-text-box h3 {
  font-size: 2rem;
  margin-bottom: 1.25rem;
}

.intro-text-box p {
  font-size: 1.0625rem;
  margin-bottom: 1.25rem;
  line-height: 1.8;
}

/* Tipografik Anlatım Kartı (BEAUTY + HOME = BEAUTYHOME) */
.brand-formula-card {
  background-color: var(--bg-primary);
  border: 1px solid var(--border-light);
  border-radius: var(--radius-lg);
  padding: 3rem 2.5rem;
  box-shadow: var(--shadow-md);
  position: relative;
}

.formula-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 1rem 0;
}

.formula-item {
  flex: 1;
}

.formula-word {
  font-size: 1.5rem;
  font-weight: 800;
  letter-spacing: -0.02em;
  color: var(--text-primary);
  display: block;
}

.formula-desc {
  font-size: 0.875rem;
  color: var(--text-muted);
  margin-top: 0.25rem;
}

.formula-operator {
  font-size: 1.5rem;
  font-weight: 300;
  color: var(--accent-gold);
  padding: 0 1.5rem;
  user-select: none;
}

.formula-divider {
  height: 1px;
  background-color: var(--border-light);
  margin: 1rem 0;
}

.formula-result {
  background-color: var(--bg-dark);
  color: #FFFFFF;
  border-radius: var(--radius-md);
  padding: 1.5rem 2rem;
  text-align: center;
  margin-top: 1rem;
}

.formula-result-title {
  font-size: 1.75rem;
  font-weight: 800;
  letter-spacing: 0.02em;
  color: #FFFFFF;
  margin-bottom: 0.25rem;
}

.formula-result-title span {
  color: var(--accent-gold);
  font-weight: 400;
}

.formula-result-sub {
  font-size: 0.9375rem;
  color: var(--text-light-muted);
}

/* --------------------------------------------------------------------------
   8. ÜRÜN GRUPLARI (PRODUCT GROUPS)
   -------------------------------------------------------------------------- */
.categories-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1.75rem;
}

.category-card {
  background-color: var(--bg-primary);
  border: 1px solid var(--border-light);
  border-radius: var(--radius-md);
  overflow: hidden;
  display: flex;
  flex-direction: column;
  transition: all var(--transition-normal);
  box-shadow: var(--shadow-sm);
}

.category-card:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-lg);
  border-color: var(--accent-gold-border);
}

.category-img-holder {
  width: 100%;
  height: 220px;
  background-color: var(--bg-secondary);
  overflow: hidden;
  position: relative;
}

.category-img-holder img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform var(--transition-slow);
}

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

.category-content {
  padding: 1.75rem 1.5rem;
  display: flex;
  flex-direction: column;
  flex-grow: 1;
}

.category-icon {
  width: 44px;
  height: 44px;
  background-color: var(--bg-secondary);
  border-radius: var(--radius-sm);
  color: var(--accent-gold);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 1.25rem;
}

.category-title {
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: 0.75rem;
}

.category-desc {
  font-size: 0.9375rem;
  color: var(--text-secondary);
  margin-bottom: 1.75rem;
  line-height: 1.6;
  flex-grow: 1;
}

.category-link {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  font-size: 0.875rem;
  font-weight: 700;
  color: var(--accent-gold);
  transition: gap var(--transition-fast);
}

.category-card:hover .category-link {
  color: var(--text-primary);
  gap: 0.6rem;
}

/* --------------------------------------------------------------------------
   9. NEDEN BEAUTYHOME? (WHY BEAUTYHOME FEATURES)
   -------------------------------------------------------------------------- */
.features-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1.75rem;
}

.feature-card {
  background-color: var(--bg-primary);
  border: 1px solid var(--border-light);
  border-radius: var(--radius-md);
  padding: 2.25rem 1.75rem;
  transition: all var(--transition-normal);
}

.feature-card:hover {
  border-color: var(--accent-gold);
  box-shadow: var(--shadow-md);
  transform: translateY(-4px);
}

.feature-icon-wrapper {
  width: 52px;
  height: 52px;
  border-radius: var(--radius-sm);
  background-color: var(--accent-gold-light);
  border: 1px solid var(--accent-gold-border);
  color: var(--accent-gold);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 1.5rem;
}

.feature-title {
  font-size: 1.125rem;
  font-weight: 700;
  margin-bottom: 0.75rem;
}

.feature-desc {
  font-size: 0.9375rem;
  color: var(--text-secondary);
  line-height: 1.65;
}

/* --------------------------------------------------------------------------
   10. MARKA VİZYONU (BRAND VISION - DARK SECTION)
   -------------------------------------------------------------------------- */
.vision-section {
  background-color: var(--bg-dark);
  color: #FFFFFF;
  position: relative;
  overflow: hidden;
}

.vision-section .section-title {
  color: #FFFFFF;
}

.vision-section .section-description {
  color: var(--text-light-muted);
}

.values-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 2rem;
  margin-top: 4rem;
}

.value-card {
  background-color: var(--bg-dark-surface);
  border: 1px solid var(--border-dark);
  border-radius: var(--radius-md);
  padding: 2.5rem 2rem;
  position: relative;
  transition: transform var(--transition-normal);
}

.value-card:hover {
  transform: translateY(-4px);
  border-color: var(--accent-gold);
}

.value-number {
  font-size: 0.8125rem;
  font-weight: 800;
  color: var(--accent-gold);
  letter-spacing: 0.1em;
  margin-bottom: 1rem;
  display: block;
}

.value-title {
  font-size: 1.5rem;
  font-weight: 800;
  color: #FFFFFF;
  margin-bottom: 0.75rem;
}

.value-desc {
  font-size: 0.9375rem;
  color: var(--text-light-muted);
  line-height: 1.7;
}

/* --------------------------------------------------------------------------
   11. YAKINDA E-TİCARETTE (COMING SOON NEWSLETTER)
   -------------------------------------------------------------------------- */
.newsletter-card {
  background: linear-gradient(135deg, #FFFFFF 0%, var(--accent-gold-light) 100%);
  border: 1px solid var(--accent-gold-border);
  border-radius: var(--radius-lg);
  padding: 4rem 3rem;
  text-align: center;
  max-width: 860px;
  margin: 0 auto;
  box-shadow: var(--shadow-md);
}

.newsletter-title {
  font-size: 2.25rem;
  font-weight: 800;
  margin-bottom: 0.75rem;
}

.newsletter-desc {
  font-size: 1.0625rem;
  color: var(--text-secondary);
  margin-bottom: 2.5rem;
  max-width: 600px;
  margin-left: auto;
  margin-right: auto;
}

.newsletter-form {
  display: flex;
  gap: 0.75rem;
  max-width: 520px;
  margin: 0 auto;
}

.newsletter-input {
  flex: 1;
  padding: 0.9375rem 1.5rem;
  border-radius: var(--radius-full);
  border: 1px solid var(--border-light);
  background-color: #FFFFFF;
  outline: none;
  transition: border-color var(--transition-fast);
}

.newsletter-input:focus {
  border-color: var(--text-primary);
}

.form-feedback {
  margin-top: 1.25rem;
  font-size: 0.9375rem;
  font-weight: 600;
  min-height: 24px;
}

.form-feedback.success {
  color: #10B981;
}

.form-feedback.error {
  color: #EF4444;
}

/* --------------------------------------------------------------------------
   12. İLETİŞİM ALANI (CONTACT SECTION)
   -------------------------------------------------------------------------- */
.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1.3fr;
  gap: 4rem;
}

.contact-info-list {
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
  margin-top: 2rem;
}

.contact-info-card {
  display: flex;
  align-items: flex-start;
  gap: 1.25rem;
  background-color: var(--bg-primary);
  border: 1px solid var(--border-light);
  padding: 1.5rem;
  border-radius: var(--radius-md);
}

.contact-info-icon {
  width: 44px;
  height: 44px;
  background-color: var(--bg-secondary);
  border-radius: var(--radius-sm);
  color: var(--accent-gold);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

.contact-info-title {
  font-size: 0.8125rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--text-muted);
  margin-bottom: 0.25rem;
}

.contact-info-val {
  font-size: 1rem;
  font-weight: 600;
  color: var(--text-primary);
}

.contact-info-val a {
  color: var(--text-primary);
}

.contact-info-val a:hover {
  color: var(--accent-gold);
}

.online-dot {
  display: inline-block;
  width: 9px;
  height: 9px;
  background-color: #22C55E;
  border-radius: 50%;
  margin-left: 6px;
  vertical-align: middle;
  box-shadow: 0 0 0 3px rgba(34, 197, 94, 0.2);
}

/* İletişim Formu */
.contact-form-card {
  background-color: var(--bg-primary);
  border: 1px solid var(--border-light);
  border-radius: var(--radius-lg);
  padding: 3rem 2.5rem;
  box-shadow: var(--shadow-md);
}

.form-group {
  margin-bottom: 1.5rem;
}

.form-label {
  display: block;
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: 0.5rem;
}

.form-control {
  width: 100%;
  padding: 0.875rem 1.25rem;
  border: 1px solid var(--border-light);
  border-radius: var(--radius-sm);
  background-color: #FFFFFF;
  color: var(--text-primary);
  outline: none;
  transition: all var(--transition-fast);
}

.form-control:focus {
  border-color: var(--text-primary);
  box-shadow: 0 0 0 3px rgba(15, 23, 42, 0.05);
}

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

.checkbox-group {
  display: flex;
  align-items: flex-start;
  gap: 0.75rem;
  margin-bottom: 2rem;
}

.checkbox-group input[type="checkbox"] {
  width: 18px;
  height: 18px;
  margin-top: 0.2rem;
  accent-color: var(--accent-gold);
  cursor: pointer;
}

.checkbox-label {
  font-size: 0.875rem;
  color: var(--text-secondary);
  line-height: 1.5;
}

.checkbox-label button {
  background: none;
  border: none;
  color: var(--accent-gold);
  font-weight: 600;
  text-decoration: underline;
  cursor: pointer;
  padding: 0;
}

/* --------------------------------------------------------------------------
   13. ALT BİLGİ (FOOTER)
   -------------------------------------------------------------------------- */
.footer {
  background-color: var(--bg-dark);
  color: var(--text-light);
  padding-top: 5rem;
  padding-bottom: 3rem;
  border-top: 1px solid var(--border-dark);
}

.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: 3.5rem;
  margin-bottom: 4rem;
}

.footer-brand p {
  color: var(--text-light-muted);
  font-size: 0.9375rem;
  margin-top: 1.25rem;
  max-width: 340px;
  line-height: 1.7;
}

.footer-title {
  font-size: 1rem;
  font-weight: 700;
  color: #FFFFFF;
  margin-bottom: 1.5rem;
  letter-spacing: -0.01em;
}

.footer-links {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 0.875rem;
}

.footer-links a,
.footer-links button {
  color: var(--text-light-muted);
  font-size: 0.9375rem;
  background: none;
  border: none;
  padding: 0;
  text-align: left;
  cursor: pointer;
  transition: color var(--transition-fast);
}

.footer-links a:hover,
.footer-links button:hover {
  color: var(--accent-gold);
}

.footer-bottom {
  border-top: 1px solid var(--border-dark);
  padding-top: 2rem;
  display: flex;
  flex-direction: column;
  gap: 1rem;
  align-items: center;
  text-align: center;
}

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

.footer-disclaimer {
  font-size: 0.8125rem;
  color: #64748B;
  max-width: 800px;
  line-height: 1.6;
}

/* --------------------------------------------------------------------------
   14. YASAL BİLGİLENDİRME MODALLERİ (LEGAL MODALS)
   -------------------------------------------------------------------------- */
.modal-backdrop {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background-color: rgba(15, 23, 42, 0.65);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  z-index: 2000;
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  visibility: hidden;
  transition: all var(--transition-normal);
  padding: 1.5rem;
}

.modal-backdrop.active {
  opacity: 1;
  visibility: visible;
}

.modal-dialog {
  background-color: var(--bg-primary);
  border-radius: var(--radius-lg);
  width: 100%;
  max-width: 720px;
  max-height: 85vh;
  display: flex;
  flex-direction: column;
  box-shadow: var(--shadow-lg);
  transform: translateY(20px);
  transition: transform var(--transition-normal);
  overflow: hidden;
}

.modal-backdrop.active .modal-dialog {
  transform: translateY(0);
}

.modal-header {
  padding: 1.5rem 2rem;
  border-bottom: 1px solid var(--border-light);
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.modal-title {
  font-size: 1.375rem;
  font-weight: 800;
}

.modal-close {
  background: none;
  border: none;
  font-size: 1.5rem;
  color: var(--text-muted);
  cursor: pointer;
  padding: 0.25rem 0.5rem;
  border-radius: var(--radius-sm);
  transition: color var(--transition-fast);
}

.modal-close:hover {
  color: var(--text-primary);
}

.modal-body {
  padding: 2rem;
  overflow-y: auto;
  font-size: 0.9375rem;
  color: var(--text-secondary);
  line-height: 1.7;
}

.modal-notice {
  background-color: var(--accent-gold-light);
  border: 1px solid var(--accent-gold-border);
  border-radius: var(--radius-sm);
  padding: 1rem 1.25rem;
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: 1.5rem;
}

/* --------------------------------------------------------------------------
   15. SAYFA YUKARI ÇIK BUTONU & YÜKLEME ANİMASYONLARI (SCROLL TOP & FADE)
   -------------------------------------------------------------------------- */
.scroll-top-btn {
  position: fixed;
  bottom: 2rem;
  right: 2rem;
  width: 48px;
  height: 48px;
  border-radius: 50%;
  background-color: var(--bg-dark);
  color: #FFFFFF;
  border: 1px solid var(--border-dark);
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  box-shadow: var(--shadow-md);
  z-index: 900;
  opacity: 0;
  visibility: hidden;
  transition: all var(--transition-normal);
}

.scroll-top-btn.visible {
  opacity: 1;
  visibility: visible;
}

.scroll-top-btn:hover {
  background-color: var(--accent-gold);
  transform: translateY(-3px);
}

/* IntersectionObserver Fade-Up Animasyon Sınıfları */
.fade-element {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity 0.8s cubic-bezier(0.16, 1, 0.3, 1), transform 0.8s cubic-bezier(0.16, 1, 0.3, 1);
}

.fade-element.in-view {
  opacity: 1;
  transform: translateY(0);
}

/* --------------------------------------------------------------------------
   16. MOBİL DUVAR MENÜSÜ & RESPONSIVE MEDYA SORGULARI (RESPONSIVE MEDIA QUERIES)
   -------------------------------------------------------------------------- */
@media (max-width: 1024px) {
  .hero-title {
    font-size: 2.75rem;
  }

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

  .footer-grid {
    grid-template-columns: 1fr 1fr;
    gap: 2.5rem;
  }
}

@media (max-width: 768px) {
  .section-padding {
    padding: 4rem 0;
  }

  .section-title {
    font-size: 2rem;
  }

  /* Mobil Menü Konfigürasyonu */
  .mobile-toggle {
    display: block;
  }

  .nav-menu {
    position: fixed;
    top: 0;
    right: -100%;
    width: 85%;
    max-width: 360px;
    height: 100vh;
    background-color: var(--bg-primary);
    box-shadow: -10px 0 30px rgba(0, 0, 0, 0.15);
    flex-direction: column;
    align-items: flex-start;
    padding: 6rem 2.5rem 2.5rem 2.5rem;
    gap: 1.5rem;
    transition: right var(--transition-normal);
    z-index: 999;
  }

  .nav-menu.active {
    right: 0;
  }

  .nav-link {
    font-size: 1.125rem;
    width: 100%;
  }

  .nav-actions {
    display: none; /* Mobil menü içindeki butonla ikame edilebilir */
  }

  /* Hero Mobil */
  .hero-section {
    padding-top: 8rem;
  }

  .hero-grid,
  .intro-grid,
  .contact-grid {
    grid-template-columns: 1fr;
    gap: 3rem;
  }

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

  .hero-buttons {
    flex-direction: column;
  }

  .hero-buttons .btn {
    width: 100%;
  }

  .trust-badges {
    grid-template-columns: 1fr;
  }

  .hero-float-card {
    position: static;
    margin-top: 1rem;
  }

  /* Marka Formülü Mobil */
  .formula-row {
    flex-direction: column;
    align-items: flex-start;
    gap: 0.5rem;
  }

  .formula-operator {
    align-self: center;
    padding: 0.5rem 0;
  }

  /* Kategori ve Özellik Mobil */
  .categories-grid,
  .features-grid,
  .values-grid {
    grid-template-columns: 1fr;
  }

  .newsletter-card {
    padding: 2.5rem 1.5rem;
  }

  .newsletter-form {
    flex-direction: column;
  }

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