/* ==========================================================================
   PAY ENERJİ - BUSINESS CLEAN DESIGN SYSTEM & STYLESHEET
   Renk Paleti: Derin Kurumsal Mavi (#013A71) & Canlı Enerji Yeşili (#8DC63F / #92D050)
   ========================================================================== */

@import url('https://fonts.googleapis.com/css2?family=Plus+Jakarta+Sans:wght@300;400;500;600;700;800&family=Inter:wght@400;500;600;700&display=swap');

:root {
  /* Marka Renkleri (Logodan Birebir) */
  --color-primary: #013A71;
  --color-primary-dark: #00264D;
  --color-primary-light: #0d4e94;
  --color-primary-subtle: #E8F1FA;
  
  --color-accent: #8DC63F;
  --color-accent-bright: #95D600;
  --color-accent-hover: #7CB342;
  --color-accent-subtle: #F2F9E8;
  --color-accent-glow: rgba(141, 198, 63, 0.35);

  /* Nötr & Arka Plan Tonları */
  --color-slate-900: #0F172A;
  --color-slate-800: #1E293B;
  --color-slate-700: #334155;
  --color-slate-600: #475569;
  --color-slate-500: #64748B;
  --color-slate-400: #94A3B8;
  --color-slate-200: #E2E8F0;
  --color-slate-100: #F1F5F9;
  --color-slate-50: #F8FAFC;
  --color-white: #FFFFFF;

  /* Tipografi */
  --font-heading: 'Plus Jakarta Sans', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  --font-body: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;

  /* Gölgeler & Derinlik */
  --shadow-xs: 0 1px 3px rgba(1, 58, 113, 0.05);
  --shadow-sm: 0 4px 12px rgba(1, 58, 113, 0.06);
  --shadow-md: 0 10px 25px -3px rgba(1, 58, 113, 0.09), 0 4px 6px -2px rgba(1, 58, 113, 0.05);
  --shadow-lg: 0 20px 35px -5px rgba(1, 58, 113, 0.12), 0 10px 10px -5px rgba(1, 58, 113, 0.04);
  --shadow-accent: 0 10px 25px -2px rgba(141, 198, 63, 0.4);

  /* Yuvarlama (Radius) */
  --radius-sm: 8px;
  --radius-md: 14px;
  --radius-lg: 20px;
  --radius-xl: 28px;
  --radius-full: 9999px;

  /* Geçişler */
  --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-bounce: 0.4s cubic-bezier(0.34, 1.56, 0.64, 1);
}

/* ==========================================================================
   Temel Sıfırlama (CSS 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-body);
  color: var(--color-slate-700);
  background-color: var(--color-white);
  line-height: 1.65;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-heading);
  color: var(--color-slate-900);
  font-weight: 700;
  line-height: 1.25;
  letter-spacing: -0.02em;
}

p {
  margin-bottom: 1rem;
}

p:last-child {
  margin-bottom: 0;
}

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

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

ul, ol {
  list-style: none;
}

button, input, select, textarea {
  font: inherit;
}

/* ==========================================================================
   Grid & Kapsayıcı (Containers & Layout)
   ========================================================================== */
.container {
  width: 100%;
  max-width: 1240px;
  margin-left: auto;
  margin-right: auto;
  padding-left: 24px;
  padding-right: 24px;
}

.container-narrow {
  max-width: 960px;
}

.section {
  padding-top: 96px;
  padding-bottom: 96px;
  position: relative;
}

.section-sm {
  padding-top: 56px;
  padding-bottom: 56px;
}

.section-bg {
  background-color: var(--color-slate-50);
}

.section-dark {
  background-color: var(--color-primary-dark);
  color: var(--color-slate-200);
}

.section-dark h1,
.section-dark h2,
.section-dark h3,
.section-dark h4 {
  color: var(--color-white);
}

/* Bölüm Başlık Kılavuzu */
.section-header {
  text-align: center;
  max-width: 720px;
  margin: 0 auto 64px auto;
}

.section-header.text-left {
  text-align: left;
  margin-left: 0;
}

.badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 6px 16px;
  font-size: 0.85rem;
  font-weight: 600;
  border-radius: var(--radius-full);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  margin-bottom: 16px;
}

.badge-primary {
  background-color: var(--color-primary-subtle);
  color: var(--color-primary);
  border: 1px solid rgba(1, 58, 113, 0.15);
}

.badge-accent {
  background-color: var(--color-accent-subtle);
  color: #4D7C0F;
  border: 1px solid rgba(141, 198, 63, 0.3);
}

.badge-white {
  background-color: rgba(255, 255, 255, 0.15);
  color: var(--color-white);
  backdrop-filter: blur(8px);
  border: 1px solid rgba(255, 255, 255, 0.25);
}

.section-title {
  font-size: 2.5rem;
  margin-bottom: 16px;
}

.section-subtitle {
  font-size: 1.125rem;
  color: var(--color-slate-500);
  line-height: 1.6;
}

.section-dark .section-subtitle {
  color: var(--color-slate-400);
}

/* ==========================================================================
   Butonlar & CTA Öğeleri
   ========================================================================== */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  padding: 14px 28px;
  font-family: var(--font-heading);
  font-weight: 600;
  font-size: 0.975rem;
  border-radius: var(--radius-md);
  border: 1px solid transparent;
  cursor: pointer;
  transition: all var(--transition-normal);
  text-align: center;
  white-space: nowrap;
}

.btn-primary {
  background-color: var(--color-primary);
  color: var(--color-white);
  box-shadow: 0 4px 14px rgba(1, 58, 113, 0.25);
}

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

.btn-accent {
  background-color: var(--color-accent);
  color: var(--color-slate-900);
  font-weight: 700;
  box-shadow: var(--shadow-accent);
}

.btn-accent:hover {
  background-color: var(--color-accent-bright);
  transform: translateY(-2px);
  box-shadow: 0 12px 28px -2px rgba(141, 198, 63, 0.5);
}

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

.btn-outline:hover {
  background-color: var(--color-primary-subtle);
  transform: translateY(-2px);
}

.btn-outline-white {
  background-color: transparent;
  border-color: rgba(255, 255, 255, 0.35);
  color: var(--color-white);
}

.btn-outline-white:hover {
  background-color: rgba(255, 255, 255, 0.1);
  border-color: var(--color-white);
  transform: translateY(-2px);
}

.btn-sm {
  padding: 9px 18px;
  font-size: 0.875rem;
  border-radius: var(--radius-sm);
}

.btn-lg {
  padding: 16px 36px;
  font-size: 1.05rem;
}

/* ==========================================================================
   Header & Navigasyon
   ========================================================================== */
.topbar {
  background-color: var(--color-primary-dark);
  color: var(--color-slate-400);
  font-size: 0.825rem;
  padding: 8px 0;
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
}

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

.topbar-left, .topbar-right {
  display: flex;
  align-items: center;
  gap: 20px;
}

.topbar-item {
  display: flex;
  align-items: center;
  gap: 6px;
}

.topbar-item a:hover {
  color: var(--color-accent);
}

.header {
  position: sticky;
  top: 0;
  z-index: 1000;
  background-color: rgba(255, 255, 255, 0.96);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  border-bottom: 1px solid var(--color-slate-200);
  transition: all var(--transition-normal);
}

.header.scrolled {
  box-shadow: var(--shadow-sm);
}

.nav-container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 88px;
}

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

.brand-logo img {
  height: 56px;
  width: auto;
  max-width: 180px;
  object-fit: contain;
  transition: transform var(--transition-normal);
}

.brand-logo:hover img {
  transform: scale(1.02);
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 32px;
  height: 100%;
}

.nav-link {
  font-family: var(--font-heading);
  font-weight: 600;
  font-size: 0.925rem;
  color: var(--color-slate-700);
  position: relative;
  padding: 6px 0;
}

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

.nav-link::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 0%;
  height: 2.5px;
  background-color: var(--color-accent);
  border-radius: var(--radius-full);
  transition: width var(--transition-normal);
}

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

/* ==========================================================================
   AKILLI ENERJİ EVİ BUTONU (YALNIZCA EV İKONU - MINIMAL & KURUMSAL)
   ========================================================================== */
.nav-home-icon-btn,
.nav-home-badge {
  position: relative;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 38px;
  height: 38px;
  border-radius: 10px;
  background-color: rgba(1, 58, 113, 0.04);
  border: 1px solid rgba(1, 58, 113, 0.1);
  color: var(--color-primary);
  transition: all var(--transition-fast);
  text-decoration: none;
  flex-shrink: 0;
  margin-right: 2px;
}

.nav-home-icon-btn::after,
.nav-home-badge::after {
  display: none !important;
}

.nav-home-icon-btn .home-icon-svg,
.nav-home-badge .home-icon-svg {
  width: 18px;
  height: 18px;
  color: #013A71;
  transition: transform var(--transition-fast), color var(--transition-fast);
}

.nav-home-icon-btn:hover,
.nav-home-badge:hover {
  background-color: #EEF7E6;
  border-color: rgba(141, 198, 63, 0.55);
  transform: translateY(-1.5px);
  box-shadow: 0 4px 12px rgba(141, 198, 63, 0.22);
}

.nav-home-icon-btn:hover .home-icon-svg,
.nav-home-badge:hover .home-icon-svg {
  transform: scale(1.1);
  color: #1B4D1B;
}

.nav-home-icon-btn.active,
.nav-home-badge.active {
  background-color: #EEF7E6;
  border-color: rgba(141, 198, 63, 0.65);
  box-shadow: 0 2px 8px rgba(141, 198, 63, 0.18);
}

.nav-home-icon-btn.active .home-icon-svg,
.nav-home-badge.active .home-icon-svg {
  color: #013A71;
}

.nav-home-icon-btn .home-status-dot,
.nav-home-badge .home-status-dot {
  position: absolute;
  top: 5px;
  right: 5px;
  width: 6.5px;
  height: 6.5px;
  border-radius: 50%;
  background: #22C55E;
  box-shadow: 0 0 0 2px #FFFFFF, 0 0 5px #22C55E;
  animation: homePulseRadar 2s infinite ease-in-out;
}

@keyframes homePulseRadar {
  0%, 100% {
    transform: scale(0.9);
    opacity: 0.85;
    box-shadow: 0 0 0 2px #FFFFFF, 0 0 5px #22C55E;
  }
  50% {
    transform: scale(1.2);
    opacity: 1;
    box-shadow: 0 0 0 2px #FFFFFF, 0 0 10px #22C55E, 0 0 14px rgba(34, 197, 94, 0.6);
  }
}

/* Mobil Çekmece için Genel Bakış Stili */
.drawer-home-link {
  display: inline-flex !important;
  align-items: center;
  gap: 10px;
}

.drawer-home-icon {
  position: relative;
  width: 28px;
  height: 28px;
  border-radius: 8px;
  background: rgba(141, 198, 63, 0.16);
  display: flex;
  align-items: center;
  justify-content: center;
  color: #2F691A;
}

/* ==========================================================================
   ENODE-STYLE MEGA MENU (HİZMETLERİMİZ AÇILIR MENÜ)
   ========================================================================== */
.nav-item-dropdown {
  position: static;
  display: flex;
  align-items: center;
  height: 100%;
}

.nav-link-dropdown {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  cursor: pointer;
  border: none;
  background: transparent;
  transition: all var(--transition-fast);
  border-radius: 999px;
  padding: 6px 14px;
}

.dropdown-chevron {
  transition: transform 0.22s ease;
  stroke-width: 2.5;
  color: var(--color-slate-500);
}

/* Hover / Active Pill Effect (Enode Style) */
.nav-item-dropdown:hover .nav-link-dropdown,
.nav-item-dropdown.is-open .nav-link-dropdown,
.nav-item-dropdown:focus-within .nav-link-dropdown,
.nav-link-dropdown.active {
  background-color: #EEF7E6;
  color: var(--color-primary);
  font-weight: 600;
}

.nav-item-dropdown:hover .dropdown-chevron,
.nav-item-dropdown.is-open .dropdown-chevron,
.nav-item-dropdown:focus-within .dropdown-chevron {
  transform: rotate(180deg);
  color: var(--color-primary);
}

.nav-link-dropdown.active .dropdown-chevron {
  color: var(--color-primary);
}

/* Underline gizleme - Pill durumundayken alt çizgi çıkmasın */
.nav-item-dropdown:hover .nav-link-dropdown::after,
.nav-item-dropdown.is-open .nav-link-dropdown::after,
.nav-item-dropdown:focus-within .nav-link-dropdown::after,
.nav-link-dropdown.active::after {
  display: none !important;
}

/* Mega Menü Açılır Panel */
.mega-menu {
  position: absolute;
  top: 100%;
  left: 0;
  right: 0;
  width: 100%;
  padding: 10px 24px 32px;
  opacity: 0;
  visibility: hidden;
  transform: translateY(6px);
  transition: opacity 0.22s cubic-bezier(0.16, 1, 0.3, 1),
              transform 0.22s cubic-bezier(0.16, 1, 0.3, 1),
              visibility 0.22s ease;
  pointer-events: none;
  z-index: 1050;
}

/* Görünmez Hover Köprüsü - Menü ile buton arasındaki tüm boşluğu doldurur */
.mega-menu::before {
  content: '';
  position: absolute;
  top: -38px;
  left: 0;
  right: 0;
  height: 48px;
  background: transparent;
  pointer-events: auto;
}

.nav-item-dropdown:hover .mega-menu,
.nav-item-dropdown.is-open .mega-menu,
.mega-menu:hover {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
  pointer-events: auto;
}

/* Mega Menü Kartı */
.mega-menu-card {
  max-width: 1220px;
  margin: 0 auto;
  background: #FFFFFF;
  border: 1px solid var(--color-slate-200);
  border-radius: 20px;
  padding: 34px 38px;
  box-shadow: 0 25px 50px -12px rgba(1, 58, 113, 0.16), 0 8px 16px -4px rgba(0, 0, 0, 0.04);
  display: grid;
  grid-template-columns: 240px 1fr 1fr 1fr;
  gap: 32px;
  align-items: start;
}

/* Sol Tanıtım Sütunu */
.mega-intro-col {
  display: flex;
  flex-direction: column;
  padding-right: 24px;
  border-right: 1px solid var(--color-slate-200);
  height: 100%;
}

.mega-intro-title {
  font-family: var(--font-heading);
  font-size: 1.45rem;
  font-weight: 800;
  color: var(--color-primary);
  margin-bottom: 10px;
  letter-spacing: -0.4px;
}

.mega-intro-desc {
  font-family: var(--font-body);
  font-size: 0.88rem;
  color: var(--color-slate-600);
  line-height: 1.6;
  margin-bottom: 24px;
}

.mega-intro-link {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-family: var(--font-heading);
  font-size: 0.88rem;
  font-weight: 700;
  color: #38761D;
  text-decoration: none;
  margin-top: auto;
  padding: 8px 0;
  transition: all var(--transition-fast);
}

.mega-intro-link:hover {
  color: var(--color-primary);
  transform: translateX(4px);
}

/* Kategori Sütunları */
.mega-category-col {
  display: flex;
  flex-direction: column;
}

.mega-category-title {
  font-family: var(--font-heading);
  font-size: 0.8rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.8px;
  color: var(--color-slate-400);
  margin-bottom: 14px;
  padding-left: 8px;
}

.mega-items-list {
  display: flex;
  flex-direction: column;
  gap: 4px;
}

/* Her Bir Menü Öğesi (Enode Tarzı) */
.mega-menu-item {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 8px 10px;
  border-radius: 12px;
  text-decoration: none;
  transition: all 0.18s ease;
  background: transparent;
}

.mega-menu-item:hover {
  background: #F8FAFC;
  transform: translateX(3px);
}

/* Yeşil Rozet İkon Kutusu */
.mega-item-icon {
  width: 38px;
  height: 38px;
  flex-shrink: 0;
  border-radius: 10px;
  background: #EDF7E3;
  display: flex;
  align-items: center;
  justify-content: center;
  color: #4A7A18;
  transition: all 0.18s ease;
}

.mega-menu-item:hover .mega-item-icon {
  background: #E2F2D2;
  color: var(--color-primary);
  transform: scale(1.05);
}

.mega-item-text {
  display: flex;
  flex-direction: column;
  gap: 2px;
}

.mega-item-name {
  font-family: var(--font-heading);
  font-size: 0.92rem;
  font-weight: 600;
  color: var(--color-slate-900);
  transition: color 0.18s ease;
  line-height: 1.3;
}

.mega-menu-item:hover .mega-item-name {
  color: var(--color-primary);
}

.mega-item-sub {
  font-family: var(--font-body);
  font-size: 0.77rem;
  color: var(--color-slate-500);
  line-height: 1.25;
}

/* Mobil Drawer Accordion Stilleri */
.drawer-dropdown {
  display: flex;
  flex-direction: column;
  width: 100%;
}

.drawer-dropdown-toggle {
  display: flex;
  align-items: center;
  justify-content: space-between;
  width: 100%;
  background: none;
  border: none;
  cursor: pointer;
  text-align: left;
  font-family: var(--font-heading);
  font-size: 1.05rem;
  font-weight: 600;
  color: var(--color-slate-800);
  padding: 10px 0;
}

.drawer-chevron {
  transition: transform 0.2s ease;
}

.drawer-dropdown.open .drawer-chevron {
  transform: rotate(180deg);
}

.drawer-submenu {
  display: none;
  flex-direction: column;
  gap: 8px;
  padding: 8px 0 12px 14px;
  border-left: 2px solid var(--color-accent-subtle);
  margin-left: 6px;
}

.drawer-dropdown.open .drawer-submenu {
  display: flex;
}

.drawer-sublink {
  font-size: 0.92rem;
  color: var(--color-slate-600);
  text-decoration: none;
  padding: 6px 0;
  transition: color var(--transition-fast);
}

.drawer-sublink:hover {
  color: var(--color-primary);
}

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

.portal-btn {
  display: flex;
  align-items: center;
  gap: 6px;
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--color-primary);
  padding: 8px 14px;
  border-radius: var(--radius-sm);
  background-color: var(--color-primary-subtle);
  transition: all var(--transition-fast);
}

.portal-btn:hover {
  background-color: #dbeaf8;
  color: var(--color-primary-dark);
}

/* Mobil Hamburger Menü */
.mobile-toggle {
  display: none;
  background: none;
  border: none;
  cursor: pointer;
  padding: 8px;
  color: var(--color-primary);
}

.mobile-drawer {
  position: fixed;
  top: 0;
  right: -100%;
  width: 85%;
  max-width: 360px;
  height: 100vh;
  background: var(--color-white);
  z-index: 1100;
  box-shadow: -10px 0 30px rgba(0,0,0,0.15);
  display: flex;
  flex-direction: column;
  padding: 28px;
  transition: right var(--transition-normal);
  overflow-y: auto;
}

.mobile-drawer.open {
  right: 0;
}

.drawer-overlay {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: rgba(15, 23, 42, 0.6);
  backdrop-filter: blur(4px);
  z-index: 1050;
  opacity: 0;
  visibility: hidden;
  transition: all var(--transition-fast);
}

.drawer-overlay.active {
  opacity: 1;
  visibility: visible;
}

.drawer-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 32px;
}

.drawer-links {
  display: flex;
  flex-direction: column;
  gap: 16px;
  margin-bottom: 32px;
}

.drawer-link {
  font-size: 1.1rem;
  font-weight: 600;
  color: var(--color-slate-800);
  padding: 10px 0;
  border-bottom: 1px solid var(--color-slate-100);
}

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

/* ==========================================================================
   Hero Bölümü (Modern Business Hero)
   ========================================================================== */
.hero {
  position: relative;
  padding: 80px 0 100px 0;
  background: linear-gradient(135deg, #FFFFFF 0%, #F5F9FF 50%, #F0FDF4 100%);
  overflow: hidden;
}

.hero-glow {
  position: absolute;
  width: 600px;
  height: 600px;
  border-radius: 50%;
  filter: blur(120px);
  pointer-events: none;
  z-index: 0;
}

.hero-glow-1 {
  background: rgba(1, 58, 113, 0.08);
  top: -150px;
  right: -100px;
}

.hero-glow-2 {
  background: rgba(141, 198, 63, 0.12);
  bottom: -150px;
  left: -100px;
}

.hero-grid {
  display: grid;
  grid-template-columns: 1.15fr 0.85fr;
  align-items: center;
  gap: 56px;
  position: relative;
  z-index: 1;
}

.hero-content {
  max-width: 640px;
}

.hero-title {
  font-size: 3.4rem;
  line-height: 1.15;
  margin-bottom: 24px;
}

.text-gradient-primary {
  background: linear-gradient(135deg, var(--color-primary) 0%, #0369a1 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.text-accent-highlight {
  color: var(--color-accent-hover);
  position: relative;
  display: inline-block;
}

.hero-desc {
  font-size: 1.15rem;
  color: var(--color-slate-600);
  line-height: 1.65;
  margin-bottom: 36px;
}

.hero-cta-group {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 16px;
  margin-bottom: 40px;
}

.hero-trust-list {
  display: flex;
  flex-wrap: wrap;
  gap: 24px;
  padding-top: 24px;
  border-top: 1px solid rgba(1, 58, 113, 0.1);
}

.trust-item {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 0.9rem;
  font-weight: 600;
  color: var(--color-slate-700);
}

.trust-item svg {
  color: var(--color-accent);
}

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

.hero-main-card {
  background: var(--color-white);
  border: 1px solid rgba(1, 58, 113, 0.12);
  border-radius: var(--radius-xl);
  padding: 36px;
  box-shadow: var(--shadow-lg);
  position: relative;
}

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

.status-dot {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 0.8rem;
  font-weight: 600;
  color: #15803d;
  background: #dcfce7;
  padding: 4px 10px;
  border-radius: var(--radius-full);
}

.pulse-indicator {
  width: 8px;
  height: 8px;
  background-color: #22c55e;
  border-radius: 50%;
  box-shadow: 0 0 0 0 rgba(34, 197, 94, 0.7);
  animation: pulseGreen 2s infinite;
}

@keyframes pulseGreen {
  0% { transform: scale(0.95); box-shadow: 0 0 0 0 rgba(34, 197, 94, 0.7); }
  70% { transform: scale(1); box-shadow: 0 0 0 8px rgba(34, 197, 94, 0); }
  100% { transform: scale(0.95); box-shadow: 0 0 0 0 rgba(34, 197, 94, 0); }
}

.energy-meter-preview {
  background: linear-gradient(145deg, #072242 0%, #013A71 100%);
  border-radius: var(--radius-lg);
  padding: 24px;
  color: var(--color-white);
  margin-bottom: 24px;
  position: relative;
  overflow: hidden;
}

.meter-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 0.85rem;
  color: var(--color-slate-300);
  margin-bottom: 12px;
}

.meter-display {
  display: flex;
  align-items: baseline;
  gap: 8px;
  margin-bottom: 16px;
}

.meter-number {
  font-size: 2.4rem;
  font-weight: 800;
  letter-spacing: -0.02em;
  color: #FFFFFF;
  font-family: var(--font-heading);
}

.meter-unit {
  font-size: 1.1rem;
  font-weight: 600;
  color: var(--color-accent);
}

.meter-bar-wrapper {
  background: rgba(255, 255, 255, 0.15);
  height: 8px;
  border-radius: var(--radius-full);
  overflow: hidden;
  margin-bottom: 8px;
}

.meter-bar-fill {
  background: linear-gradient(90deg, var(--color-accent) 0%, #4ade80 100%);
  height: 100%;
  width: 70%;
  border-radius: var(--radius-full);
  transition: width 1.5s ease-out;
}

.meter-details {
  display: flex;
  justify-content: space-between;
  font-size: 0.8rem;
  color: var(--color-slate-300);
}

/* Yüzen Kartlar (Floating Elements) */
.float-card {
  position: absolute;
  background: var(--color-white);
  border: 1px solid rgba(1, 58, 113, 0.12);
  border-radius: var(--radius-md);
  padding: 14px 20px;
  box-shadow: var(--shadow-md);
  display: flex;
  align-items: center;
  gap: 12px;
  z-index: 2;
  animation: floatSlow 4s ease-in-out infinite alternate;
}

.float-card-1 {
  top: -24px;
  right: -24px;
  animation-delay: 0s;
}

.float-card-2 {
  bottom: -24px;
  left: -24px;
  animation-delay: 2s;
}

.float-icon {
  width: 44px;
  height: 44px;
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.25rem;
}

.float-icon-blue {
  background: var(--color-primary-subtle);
  color: var(--color-primary);
}

.float-icon-green {
  background: var(--color-accent-subtle);
  color: var(--color-accent-hover);
}

@keyframes floatSlow {
  0% { transform: translateY(0px); }
  100% { transform: translateY(-10px); }
}

/* ==========================================================================
   İstatistik Sayacı Bandı (Stats Grid)
   ========================================================================== */
.stats-section {
  background-color: var(--color-primary);
  color: var(--color-white);
  padding: 48px 0;
  position: relative;
  overflow: hidden;
}

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

.stat-item {
  text-align: center;
  padding: 16px;
  position: relative;
}

.stat-item:not(:last-child)::after {
  content: '';
  position: absolute;
  right: 0;
  top: 20%;
  height: 60%;
  width: 1px;
  background: rgba(255, 255, 255, 0.15);
}

.stat-number {
  font-size: 3rem;
  font-weight: 800;
  line-height: 1.1;
  color: var(--color-accent);
  margin-bottom: 8px;
  font-family: var(--font-heading);
}

.stat-label {
  font-size: 0.95rem;
  font-weight: 500;
  color: rgba(255, 255, 255, 0.85);
}

/* ==========================================================================
   Hizmet Kartları & Grid
   ========================================================================== */
.services-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 32px;
}

.service-card {
  background: var(--color-white);
  border: 1px solid var(--color-slate-200);
  border-radius: var(--radius-lg);
  padding: 36px 30px;
  transition: all var(--transition-normal);
  display: flex;
  flex-direction: column;
  position: relative;
  overflow: hidden;
}

.service-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 4px;
  background: linear-gradient(90deg, var(--color-primary) 0%, var(--color-accent) 100%);
  opacity: 0;
  transition: opacity var(--transition-normal);
}

.service-card:hover {
  transform: translateY(-8px);
  box-shadow: var(--shadow-lg);
  border-color: rgba(1, 58, 113, 0.2);
}

.service-card:hover::before {
  opacity: 1;
}

.service-icon-box {
  width: 64px;
  height: 64px;
  border-radius: var(--radius-md);
  background: var(--color-primary-subtle);
  color: var(--color-primary);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.75rem;
  margin-bottom: 24px;
  transition: all var(--transition-normal);
}

.service-card:hover .service-icon-box {
  background: var(--color-primary);
  color: var(--color-white);
  transform: scale(1.05);
}

.service-title {
  font-size: 1.35rem;
  margin-bottom: 14px;
}

.service-desc {
  font-size: 0.95rem;
  color: var(--color-slate-600);
  margin-bottom: 24px;
  flex-grow: 1;
}

.service-features {
  margin-bottom: 24px;
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.service-feature-item {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 0.875rem;
  color: var(--color-slate-700);
}

.service-feature-item svg {
  color: var(--color-accent);
  flex-shrink: 0;
}

.service-link {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-weight: 600;
  font-size: 0.925rem;
  color: var(--color-primary);
  margin-top: auto;
}

.service-link:hover {
  color: var(--color-accent-hover);
  gap: 12px;
}

/* ==========================================================================
   4 Adımda Süreç Nasıl Çalışır?
   ========================================================================== */
.process-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 28px;
  position: relative;
}

.process-step {
  background: var(--color-white);
  border: 1px solid var(--color-slate-200);
  border-radius: var(--radius-lg);
  padding: 32px 24px;
  text-align: center;
  position: relative;
  transition: transform var(--transition-normal);
}

.process-step:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-md);
}

.step-num {
  position: absolute;
  top: -16px;
  left: 50%;
  transform: translateX(-50%);
  width: 36px;
  height: 36px;
  border-radius: 50%;
  background: var(--color-primary);
  color: var(--color-white);
  font-weight: 700;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.9rem;
  box-shadow: 0 4px 10px rgba(1, 58, 113, 0.3);
}

.step-icon {
  width: 60px;
  height: 60px;
  margin: 12px auto 20px auto;
  border-radius: 50%;
  background: var(--color-accent-subtle);
  color: var(--color-accent-hover);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.5rem;
}

.step-title {
  font-size: 1.15rem;
  margin-bottom: 10px;
}

.step-desc {
  font-size: 0.875rem;
  color: var(--color-slate-600);
}

/* ==========================================================================
   İnteraktif Doğalgaz & Isı Dağıtım Simülatörü
   ========================================================================== */
.calculator-box {
  background: var(--color-white);
  border-radius: var(--radius-xl);
  border: 1px solid var(--color-slate-200);
  box-shadow: var(--shadow-lg);
  overflow: hidden;
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
}

.calc-inputs-side {
  padding: 44px;
}

.calc-results-side {
  background: linear-gradient(145deg, #072242 0%, #013A71 100%);
  color: var(--color-white);
  padding: 44px;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
}

.form-group {
  margin-bottom: 24px;
}

.form-label {
  display: block;
  font-weight: 600;
  font-size: 0.925rem;
  color: var(--color-slate-800);
  margin-bottom: 8px;
}

.form-control {
  width: 100%;
  padding: 12px 16px;
  border: 1px solid var(--color-slate-300);
  border-radius: var(--radius-sm);
  background-color: var(--color-white);
  color: var(--color-slate-900);
  transition: border-color var(--transition-fast);
}

.form-control:focus {
  outline: none;
  border-color: var(--color-primary);
  box-shadow: 0 0 0 3px rgba(1, 58, 113, 0.15);
}

.range-slider {
  width: 100%;
  margin-top: 8px;
  accent-color: var(--color-accent-hover);
}

.calc-breakdown-card {
  background: rgba(255, 255, 255, 0.08);
  border: 1px solid rgba(255, 255, 255, 0.12);
  border-radius: var(--radius-md);
  padding: 20px;
  margin-bottom: 20px;
}

.calc-breakdown-row {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 8px 0;
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
  font-size: 0.9rem;
}

.calc-breakdown-row:last-child {
  border-bottom: none;
}

.calc-total-box {
  background: rgba(141, 198, 63, 0.15);
  border: 1px solid rgba(141, 198, 63, 0.35);
  border-radius: var(--radius-md);
  padding: 20px;
  text-align: center;
}

.calc-total-label {
  font-size: 0.85rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--color-slate-300);
  margin-bottom: 4px;
}

.calc-total-val {
  font-size: 2.2rem;
  font-weight: 800;
  color: var(--color-accent);
  font-family: var(--font-heading);
}

/* ==========================================================================
   Ürün Kartları & Bento Grid (Products & Services Bento)
   ========================================================================== */
.products-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 32px;
}

/* Bento Grid Düzeni */
.products-bento-grid {
  display: grid;
  grid-template-columns: repeat(12, 1fr);
  gap: 24px;
  margin-top: 36px;
}

.bento-card {
  position: relative;
  border-radius: 24px;
  background: #FFFFFF;
  border: 1px solid rgba(1, 58, 113, 0.09);
  padding: 36px 32px 30px;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  overflow: hidden;
  transition: all 0.35s cubic-bezier(0.16, 1, 0.3, 1);
  box-shadow: 0 4px 20px -2px rgba(1, 58, 113, 0.04), 0 2px 6px -1px rgba(0, 0, 0, 0.02);
}

.bento-card::before {
  content: '';
  position: absolute;
  top: 0;
  right: 0;
  width: 240px;
  height: 240px;
  background: radial-gradient(circle at top right, rgba(141, 198, 63, 0.08), transparent 70%);
  pointer-events: none;
  border-radius: inherit;
}

.bento-card:hover {
  transform: translateY(-5px);
  box-shadow: 0 20px 40px -10px rgba(1, 58, 113, 0.12), 0 0 0 1.5px rgba(141, 198, 63, 0.45);
  border-color: rgba(141, 198, 63, 0.5);
}

.bento-span-7 {
  grid-column: span 7;
}

.bento-span-5 {
  grid-column: span 5;
}

/* Koyu Temalı Bento Kartı (Sayaç Okuma Hizmeti) */
.bento-card-dark {
  background: linear-gradient(140deg, #013A71 0%, #00254D 55%, #00162E 100%);
  color: #FFFFFF;
  border: 1px solid rgba(255, 255, 255, 0.14);
}

.bento-card-dark::before {
  background: radial-gradient(circle at top right, rgba(141, 198, 63, 0.18), transparent 70%);
}

.bento-card-dark:hover {
  box-shadow: 0 24px 48px -10px rgba(1, 58, 113, 0.4), 0 0 0 1.5px rgba(141, 198, 63, 0.65);
  border-color: rgba(141, 198, 63, 0.7);
}

.bento-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 22px;
  flex-wrap: wrap;
  gap: 12px;
}

.bento-pills-group {
  display: flex;
  align-items: center;
  gap: 8px;
  flex-wrap: wrap;
}

.bento-pill {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 0.75rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  padding: 5px 12px;
  border-radius: 999px;
  background: rgba(1, 58, 113, 0.06);
  color: #013A71;
  border: 1px solid rgba(1, 58, 113, 0.1);
}

.bento-pill-accent {
  background: #EEF7E6;
  color: #2F691A;
  border-color: rgba(141, 198, 63, 0.4);
}

.bento-pill-cyan {
  background: rgba(14, 165, 233, 0.12);
  color: #0284C7;
  border-color: rgba(14, 165, 233, 0.3);
}

.bento-pill-light {
  background: rgba(255, 255, 255, 0.12);
  color: #8DC63F;
  border-color: rgba(255, 255, 255, 0.22);
}

.bento-card-icon-wrap {
  width: 48px;
  height: 48px;
  border-radius: 14px;
  background: rgba(1, 58, 113, 0.05);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--color-primary);
  transition: all var(--transition-fast);
  flex-shrink: 0;
}

.bento-card:hover .bento-card-icon-wrap {
  transform: scale(1.08) rotate(3deg);
  background: #EEF7E6;
  color: #013A71;
}

.bento-card-dark .bento-card-icon-wrap {
  background: rgba(255, 255, 255, 0.1);
  color: #8DC63F;
}

.bento-card-dark:hover .bento-card-icon-wrap {
  background: #8DC63F;
  color: #013A71;
}

.bento-title {
  font-size: 1.45rem;
  font-weight: 700;
  color: var(--color-primary);
  margin-bottom: 12px;
  line-height: 1.3;
}

.bento-card-dark .bento-title {
  color: #FFFFFF;
}

.bento-desc {
  font-size: 0.925rem;
  color: var(--color-slate-600);
  line-height: 1.6;
  margin-bottom: 24px;
}

.bento-card-dark .bento-desc {
  color: #CBD5E1;
}

/* Bento İçi Görsel / Grafik Kartı */
.bento-visual-box {
  background: #F8FAFC;
  border: 1px solid rgba(1, 58, 113, 0.06);
  border-radius: 18px;
  padding: 18px 20px;
  margin-bottom: 24px;
  position: relative;
}

.bento-card-dark .bento-visual-box {
  background: rgba(255, 255, 255, 0.06);
  border-color: rgba(255, 255, 255, 0.12);
  backdrop-filter: blur(8px);
}

/* Özellik Çipleri */
.bento-feature-chips {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-bottom: 24px;
}

.bento-chip {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  font-size: 0.8rem;
  font-weight: 600;
  padding: 6px 12px;
  border-radius: 8px;
  background: rgba(1, 58, 113, 0.03);
  color: var(--color-slate-700);
  border: 1px solid rgba(1, 58, 113, 0.08);
}

.bento-card-dark .bento-chip {
  background: rgba(255, 255, 255, 0.07);
  color: #E2E8F0;
  border-color: rgba(255, 255, 255, 0.12);
}

.bento-chip svg {
  color: #8DC63F;
  flex-shrink: 0;
}

/* Kat İstasyonu Şematik Diyagramı */
.station-flow-diagram {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  flex-wrap: wrap;
}

.flow-node {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 0.825rem;
  font-weight: 600;
  color: #013A71;
  background: #FFFFFF;
  padding: 8px 14px;
  border-radius: 10px;
  border: 1px solid #E2E8F0;
  box-shadow: 0 2px 6px rgba(0, 0, 0, 0.03);
}

.flow-node-accent {
  background: #EEF7E6;
  border-color: rgba(141, 198, 63, 0.45);
  color: #2F691A;
}

.flow-arrow {
  color: #8DC63F;
  font-weight: 800;
  display: flex;
  align-items: center;
}

/* Kalorimetre Dijital LCD Ekranı */
.calorimeter-display-ui {
  background: #001A38;
  border-radius: 14px;
  padding: 16px 20px;
  color: #FFFFFF;
  border: 1px solid rgba(56, 189, 248, 0.25);
  box-shadow: inset 0 2px 8px rgba(0, 0, 0, 0.5);
}

.lcd-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 0.65rem;
  text-transform: uppercase;
  letter-spacing: 1px;
  color: #94A3B8;
  margin-bottom: 8px;
}

.lcd-live-badge {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  color: #22C55E;
  font-weight: 700;
}

.lcd-live-dot {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: #22C55E;
  box-shadow: 0 0 6px #22C55E;
  animation: pulse 1.5s infinite;
}

.lcd-value-row {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
}

.lcd-main-value {
  font-family: 'Courier New', Courier, monospace;
  font-size: 1.65rem;
  font-weight: 800;
  letter-spacing: 2px;
  color: #38BDF8;
}

.lcd-sub-metrics {
  display: flex;
  gap: 14px;
  margin-top: 10px;
  padding-top: 8px;
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  font-size: 0.75rem;
  color: #CBD5E1;
  flex-wrap: wrap;
}

/* Su Sayacı Akış Göstergesi */
.water-flow-indicator {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
}

.water-pulse-circle {
  width: 52px;
  height: 52px;
  border-radius: 50%;
  background: rgba(2, 132, 199, 0.1);
  display: flex;
  align-items: center;
  justify-content: center;
  color: #0284C7;
  position: relative;
  flex-shrink: 0;
}

.water-pulse-circle::before {
  content: '';
  position: absolute;
  inset: -4px;
  border-radius: 50%;
  border: 1.5px dashed rgba(2, 132, 199, 0.4);
  animation: rotateSlow 12s linear infinite;
}

@keyframes rotateSlow {
  from { transform: rotate(0deg); }
  to { transform: rotate(360deg); }
}

.water-stats-list {
  display: flex;
  flex-direction: column;
  gap: 4px;
  flex-grow: 1;
}

.water-stat-item {
  display: flex;
  justify-content: space-between;
  font-size: 0.775rem;
  color: var(--color-slate-600);
}

.water-stat-item strong {
  color: var(--color-primary);
}

/* Sayaç Okuma Paylaşım Belgesi Kartı */
.report-mock-card {
  background: rgba(255, 255, 255, 0.08);
  border: 1px solid rgba(255, 255, 255, 0.14);
  border-radius: 14px;
  padding: 16px 18px;
}

.report-mock-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  border-bottom: 1px solid rgba(255, 255, 255, 0.12);
  padding-bottom: 8px;
  margin-bottom: 10px;
  font-size: 0.75rem;
  color: #94A3B8;
  font-weight: 600;
}

.report-mock-row {
  display: flex;
  justify-content: space-between;
  font-size: 0.8rem;
  color: #E2E8F0;
  margin-bottom: 6px;
}

.report-mock-total {
  display: flex;
  justify-content: space-between;
  align-items: center;
  border-top: 1px dashed rgba(255, 255, 255, 0.2);
  padding-top: 10px;
  margin-top: 8px;
  font-size: 0.9rem;
  font-weight: 700;
  color: #FFFFFF;
}

.report-total-amount {
  font-size: 1.15rem;
  font-weight: 800;
  color: #8DC63F;
}

.bento-cta-btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 0.925rem;
  font-weight: 700;
  color: var(--color-primary);
  text-decoration: none;
  transition: all var(--transition-fast);
  margin-top: auto;
  align-self: flex-start;
  padding: 6px 0;
}

.bento-cta-btn svg {
  transition: transform var(--transition-fast);
}

.bento-card:hover .bento-cta-btn svg {
  transform: translateX(5px);
}

.bento-card-dark .bento-cta-btn {
  color: #8DC63F;
}

.bento-card-dark:hover .bento-cta-btn {
  color: #FFFFFF;
}

@media (max-width: 1024px) {
  .bento-span-7, .bento-span-5 {
    grid-column: span 12;
  }
}

.product-card {
  background: var(--color-white);
  border: 1px solid var(--color-slate-200);
  border-radius: var(--radius-lg);
  overflow: hidden;
  transition: all var(--transition-normal);
  display: flex;
  flex-direction: column;
}

.product-card:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-lg);
  border-color: rgba(1, 58, 113, 0.2);
}

.product-img-box {
  height: 200px;
  background: var(--color-slate-50);
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 24px;
  border-bottom: 1px solid var(--color-slate-200);
  position: relative;
}

.product-tag {
  position: absolute;
  top: 16px;
  left: 16px;
  font-size: 0.75rem;
  font-weight: 700;
  background: var(--color-primary);
  color: var(--color-white);
  padding: 4px 10px;
  border-radius: var(--radius-full);
}

.product-body {
  padding: 24px;
  display: flex;
  flex-direction: column;
  flex-grow: 1;
}

.product-title {
  font-size: 1.25rem;
  margin-bottom: 8px;
}

.product-specs {
  font-size: 0.875rem;
  color: var(--color-slate-600);
  margin-bottom: 20px;
  display: flex;
  flex-direction: column;
  gap: 6px;
}

/* ==========================================================================
   SSS Akordeon
   ========================================================================== */
.faq-list {
  max-width: 820px;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.faq-item {
  background: var(--color-white);
  border: 1px solid var(--color-slate-200);
  border-radius: var(--radius-md);
  overflow: hidden;
  transition: all var(--transition-fast);
}

.faq-question {
  width: 100%;
  padding: 20px 24px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  background: none;
  border: none;
  cursor: pointer;
  text-align: left;
  font-family: var(--font-heading);
  font-weight: 700;
  font-size: 1.05rem;
  color: var(--color-slate-900);
}

.faq-icon {
  width: 28px;
  height: 28px;
  border-radius: 50%;
  background: var(--color-slate-100);
  display: flex;
  align-items: center;
  justify-content: center;
  transition: transform var(--transition-fast);
  flex-shrink: 0;
}

.faq-item.active .faq-icon {
  transform: rotate(180deg);
  background: var(--color-primary);
  color: var(--color-white);
}

.faq-answer {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.35s ease-out;
  padding: 0 24px;
  color: var(--color-slate-600);
  line-height: 1.6;
}

.faq-item.active .faq-answer {
  padding-bottom: 20px;
}

/* ==========================================================================
   Footer
   ========================================================================== */
.footer {
  background-color: var(--color-primary-dark);
  color: var(--color-slate-300);
  padding: 80px 0 32px 0;
  border-top: 1px solid rgba(255, 255, 255, 0.08);
}

.footer-grid {
  display: grid;
  grid-template-columns: 1.5fr 1fr 1fr 1.2fr;
  gap: 48px;
  margin-bottom: 56px;
}

.footer-col h4 {
  color: var(--color-white);
  font-size: 1.15rem;
  margin-bottom: 20px;
  position: relative;
}

.footer-col h4::after {
  content: '';
  position: absolute;
  bottom: -6px;
  left: 0;
  width: 28px;
  height: 2.5px;
  background: var(--color-accent);
  border-radius: var(--radius-full);
}

.footer-links {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.footer-link {
  color: var(--color-slate-400);
  font-size: 0.925rem;
  transition: color var(--transition-fast);
}

.footer-link:hover {
  color: var(--color-accent);
  padding-left: 4px;
}

.footer-bottom {
  padding-top: 32px;
  border-top: 1px solid rgba(255, 255, 255, 0.08);
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 0.875rem;
  color: var(--color-slate-400);
}

.footer-legal-links {
  display: flex;
  gap: 20px;
}

/* ==========================================================================
   Animasyon Sınıfları & Scroll-Driven Efektler
   ========================================================================== */
.reveal-on-scroll {
  opacity: 0;
  transform: translateY(28px);
  transition: opacity 0.7s cubic-bezier(0.16, 1, 0.3, 1), transform 0.7s cubic-bezier(0.16, 1, 0.3, 1);
}

.reveal-on-scroll.is-visible {
  opacity: 1;
  transform: translateY(0);
}

/* ==========================================================================
   Responsive Medya Sorguları (Media Queries)
   ========================================================================== */
@media (max-width: 1024px) {
  .nav-links, .portal-btn {
    display: none;
  }

  .mobile-toggle {
    display: block;
  }

  .hero-grid {
    grid-template-columns: 1fr;
    gap: 48px;
  }
  
  .hero-content {
    max-width: 100%;
    text-align: center;
  }

  .hero-cta-group, .hero-trust-list {
    justify-content: center;
  }

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

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

  .calculator-box {
    grid-template-columns: 1fr;
  }

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

@media (max-width: 768px) {
  .topbar {
    display: none;
  }

  .nav-links, .portal-btn {
    display: none;
  }

  .nav-container {
    height: 76px;
  }

  .brand-logo img {
    height: 48px;
  }

  .mobile-toggle {
    display: block;
  }

  .section {
    padding-top: 64px;
    padding-bottom: 64px;
  }

  .hero-title {
    font-size: 2.4rem;
  }

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

  .stat-item:not(:last-child)::after {
    display: none;
  }

  .services-grid, .products-grid, .process-grid {
    grid-template-columns: 1fr;
  }

  .footer-grid {
    grid-template-columns: 1fr;
    gap: 36px;
  }

  .footer-bottom {
    flex-direction: column;
    gap: 16px;
    text-align: center;
  }
}

/* ==========================================================================
   AKILLI ENERJİ SAYFA YÜKLEYİCİ (SMART ENERGY PAGE LOADER)
   ========================================================================== */
.page-loader {
  position: fixed;
  inset: 0;
  width: 100vw;
  height: 100vh;
  z-index: 999999;
  display: flex;
  align-items: center;
  justify-content: center;
  background: radial-gradient(circle at center, #022045 0%, #001428 60%, #000a17 100%);
  overflow: hidden;
  opacity: 1;
  visibility: visible;
  transition: opacity 0.55s cubic-bezier(0.16, 1, 0.3, 1), 
              transform 0.55s cubic-bezier(0.16, 1, 0.3, 1),
              visibility 0.55s ease;
  user-select: none;
  -webkit-font-smoothing: antialiased;
}

.page-loader.loaded {
  opacity: 0;
  visibility: hidden;
  transform: scale(1.04);
  pointer-events: none;
}

/* Arka Plan Enerji Izgarası & Parıltısı */
.loader-ambient {
  position: absolute;
  inset: 0;
  background-image: 
    radial-gradient(circle at 50% 50%, rgba(141, 198, 63, 0.12) 0%, transparent 60%),
    radial-gradient(circle at 50% 40%, rgba(0, 229, 255, 0.1) 0%, transparent 50%),
    linear-gradient(rgba(255, 255, 255, 0.02) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, 0.02) 1px, transparent 1px);
  background-size: 100% 100%, 100% 100%, 48px 48px, 48px 48px;
  background-position: center;
  pointer-events: none;
}

/* İçerik Kutusu */
.loader-content {
  position: relative;
  z-index: 2;
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  max-width: 90vw;
}

/* Enerji Çekirdeği (Core Container) */
.energy-core {
  position: relative;
  width: 210px;
  height: 210px;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 26px;
}

/* Yayılan Ultrasonik Enerji Dalgaları (Ultrasonic / Thermal Waves) */
.energy-wave {
  position: absolute;
  inset: 15px;
  border-radius: 50%;
  border: 1px solid rgba(141, 198, 63, 0.4);
  opacity: 0;
  pointer-events: none;
}

.wave-1 {
  animation: energyPulseWave 2.8s cubic-bezier(0.1, 0.6, 0.3, 1) infinite;
}

.wave-2 {
  animation: energyPulseWave 2.8s cubic-bezier(0.1, 0.6, 0.3, 1) infinite 1.4s;
}

@keyframes energyPulseWave {
  0% {
    transform: scale(0.7);
    opacity: 0.6;
    border-color: rgba(0, 229, 255, 0.6);
  }
  50% {
    border-color: rgba(141, 198, 63, 0.4);
  }
  100% {
    transform: scale(1.45);
    opacity: 0;
    border-color: rgba(141, 198, 63, 0);
  }
}

/* SVG Yörünge Halkaları */
.energy-rings-svg {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  transform-origin: center;
  overflow: visible;
}

.ring-bg {
  fill: none;
  stroke: rgba(255, 255, 255, 0.05);
  stroke-width: 2;
}

.ring-bg-inner {
  fill: none;
  stroke: rgba(255, 255, 255, 0.04);
  stroke-width: 1.5;
  stroke-dasharray: 4 6;
}

.ring-outer {
  fill: none;
  stroke-width: 3.5;
  stroke-linecap: round;
  stroke-dasharray: 140 40 70 30;
  transform-origin: 100px 100px;
  animation: spinClockwise 4s linear infinite;
  filter: drop-shadow(0 0 8px rgba(141, 198, 63, 0.5));
}

.ring-inner {
  fill: none;
  stroke-width: 2.5;
  stroke-linecap: round;
  stroke-dasharray: 60 30 40 40;
  transform-origin: 100px 100px;
  animation: spinCounter 2.8s linear infinite;
  filter: drop-shadow(0 0 6px rgba(0, 229, 255, 0.6));
}

@keyframes spinClockwise {
  0% { transform: rotate(0deg); }
  100% { transform: rotate(360deg); }
}

@keyframes spinCounter {
  0% { transform: rotate(360deg); }
  100% { transform: rotate(0deg); }
}

/* Yörünge Parçacığı (Orbital Sparks) */
.orbit-spark-wrapper {
  position: absolute;
  inset: 0;
  border-radius: 50%;
  animation: spinClockwise 3.2s linear infinite;
}

.orbit-spark {
  position: absolute;
  top: 13px;
  left: 50%;
  width: 8px;
  height: 8px;
  margin-left: -4px;
  background: #00E5FF;
  border-radius: 50%;
  box-shadow: 0 0 12px #00E5FF, 0 0 20px #8DC63F;
}

.orbit-spark-inner-wrap {
  position: absolute;
  inset: 22px;
  border-radius: 50%;
  animation: spinCounter 2.2s linear infinite;
}

.orbit-spark-inner {
  position: absolute;
  bottom: 0px;
  left: 50%;
  width: 6px;
  height: 6px;
  margin-left: -3px;
  background: #8DC63F;
  border-radius: 50%;
  box-shadow: 0 0 10px #8DC63F, 0 0 16px rgba(141, 198, 63, 0.8);
}

/* Merkez Logo Kapsülü */
.core-logo-capsule {
  position: relative;
  z-index: 3;
  width: 112px;
  height: 112px;
  border-radius: 50%;
  background: radial-gradient(circle at 35% 35%, rgba(1, 58, 113, 0.85) 0%, rgba(0, 26, 54, 0.96) 100%);
  border: 1px solid rgba(141, 198, 63, 0.4);
  box-shadow: 
    0 0 35px rgba(141, 198, 63, 0.25),
    inset 0 0 25px rgba(0, 229, 255, 0.15),
    0 15px 30px rgba(0, 0, 0, 0.5);
  display: flex;
  align-items: center;
  justify-content: center;
  backdrop-filter: blur(8px);
  animation: coreGlowPulse 2.5s ease-in-out infinite alternate;
}

@keyframes coreGlowPulse {
  0% {
    border-color: rgba(141, 198, 63, 0.35);
    box-shadow: 
      0 0 30px rgba(141, 198, 63, 0.2),
      inset 0 0 20px rgba(0, 229, 255, 0.12),
      0 12px 25px rgba(0, 0, 0, 0.5);
  }
  100% {
    border-color: rgba(0, 229, 255, 0.6);
    box-shadow: 
      0 0 45px rgba(0, 229, 255, 0.35),
      inset 0 0 30px rgba(141, 198, 63, 0.25),
      0 16px 35px rgba(0, 0, 0, 0.6);
  }
}

.core-logo {
  width: 80px;
  height: auto;
  max-height: 48px;
  object-fit: contain;
  filter: brightness(0) invert(1);
  transition: transform 0.3s ease;
}

/* Loader Alt Bilgi / Metrikler */
.loader-meta {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 12px;
}

.loader-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: rgba(141, 198, 63, 0.08);
  border: 1px solid rgba(141, 198, 63, 0.25);
  border-radius: 999px;
  padding: 4px 14px;
}

.badge-dot {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: #8DC63F;
  box-shadow: 0 0 8px #8DC63F;
  animation: dotBlink 1.4s ease-in-out infinite;
}

@keyframes dotBlink {
  0%, 100% { opacity: 1; transform: scale(1); }
  50% { opacity: 0.4; transform: scale(0.7); }
}

.badge-text {
  font-family: var(--font-heading);
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 2px;
  color: #8DC63F;
  text-transform: uppercase;
}

.loader-status {
  font-family: var(--font-body);
  font-size: 0.88rem;
  color: #CBD5E1;
  letter-spacing: 0.2px;
  min-height: 22px;
  transition: opacity 0.3s ease;
}

/* İlerleme Çubuğu & Yüzde */
.loader-progress-wrap {
  display: flex;
  align-items: center;
  gap: 14px;
  margin-top: 4px;
}

.loader-progress-track {
  width: 190px;
  height: 4px;
  background: rgba(255, 255, 255, 0.08);
  border-radius: 999px;
  overflow: hidden;
  position: relative;
  box-shadow: inset 0 1px 2px rgba(0, 0, 0, 0.4);
}

.loader-progress-bar {
  height: 100%;
  width: 0%;
  background: linear-gradient(90deg, #013A71 0%, #8DC63F 60%, #00E5FF 100%);
  border-radius: 999px;
  position: relative;
  box-shadow: 0 0 10px rgba(141, 198, 63, 0.8);
  transition: width 0.12s ease-out;
}

.loader-progress-bar::after {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.8), transparent);
  animation: shimmerProgress 1.5s infinite;
}

@keyframes shimmerProgress {
  0% { transform: translateX(-100%); }
  100% { transform: translateX(100%); }
}

.loader-percent {
  font-family: var(--font-heading);
  font-size: 0.85rem;
  font-weight: 700;
  color: #8DC63F;
  width: 40px;
  text-align: left;
  font-variant-numeric: tabular-nums;
}

/* Erişilebilirlik: prefers-reduced-motion */
@media (prefers-reduced-motion: reduce) {
  .page-loader {
    transition: opacity 0.2s ease, visibility 0.2s ease;
  }
  .ring-outer, .ring-inner, .orbit-spark-wrapper, .orbit-spark-inner-wrap, .wave-1, .wave-2, .core-logo-capsule, .badge-dot, .loader-progress-bar::after {
    animation: none !important;
  }
}