/* ===== DESIGN TOKENS ===== */
:root {
  --bg-primary: #070b18;
  --bg-secondary: #0c1126;
  --bg-card: rgba(12, 17, 38, 0.65);
  --glass-bg: rgba(136, 196, 255, 0.04);
  --glass-border: rgba(136, 196, 255, 0.09);
  --glass-hover: rgba(136, 196, 255, 0.08);
  --accent-primary: #0ea5e9;
  --accent-light: #38bdf8;
  --accent-glow: rgba(14, 165, 233, 0.22);
  --accent-warm: #f59e0b;
  --accent-warm-light: #fbbf24;
  --accent-warm-glow: rgba(245, 158, 11, 0.18);
  --navy-primary: #1e293b;
  --navy-light: #334155;
  --text-primary: #e2e8f0;
  --text-secondary: #94a3b8;
  --text-muted: #64748b;
  --radius-sm: 8px;
  --radius-md: 14px;
  --radius-lg: 20px;
  --radius-xl: 28px;
  --font-main: 'Inter', system-ui, -apple-system, sans-serif;
  --transition-fast: 0.2s cubic-bezier(.4, 0, .2, 1);
  --transition-smooth: 0.4s cubic-bezier(.4, 0, .2, 1);
  --max-width: 1200px;
  --section-padding: 100px 0;
}

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

html {
  scroll-behavior: smooth;
  font-size: 16px;
  overflow-x: hidden;
}

body {
  font-family: var(--font-main);
  background: var(--bg-primary);
  color: var(--text-primary);
  line-height: 1.7;
  overflow-x: hidden;
  width: 100%;
  max-width: 100vw;
  -webkit-font-smoothing: antialiased;
}

a {
  color: inherit;
  text-decoration: none;
}

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

ul {
  list-style: none;
}

/* ===== HEADER / NAV ===== */
.site-header {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  z-index: 1000;
  padding: 16px 0;
  background: transparent;
  border-bottom: 1px solid transparent;
  transition: background var(--transition-smooth),
    border-color var(--transition-smooth),
    box-shadow var(--transition-smooth);
}

.site-header.scrolled {
  background: rgba(7, 11, 24, 0.82);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-bottom-color: var(--glass-border);
  box-shadow: 0 4px 30px rgba(0, 0, 0, 0.25);
}

.main-nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
}

/* Logo */
.nav-logo {
  font-size: 1.35rem;
  font-weight: 700;
  letter-spacing: -0.02em;
  color: var(--text-primary);
  transition: opacity var(--transition-fast);
  flex-shrink: 0;
}

.nav-logo span {
  color: var(--accent-primary);
}

.nav-logo:hover {
  opacity: 0.85;
}

/* Nav links */
.nav-links {
  display: flex;
  align-items: center;
  gap: 8px;
}

.nav-links a {
  padding: 8px 16px;
  font-size: 0.9rem;
  font-weight: 500;
  color: var(--text-secondary);
  border-radius: var(--radius-sm);
  transition: color var(--transition-fast),
    background var(--transition-fast);
}

.nav-links a:hover,
.nav-links a.active {
  color: var(--text-primary);
  background: var(--glass-bg);
}

.nav-links a.active {
  color: var(--accent-light);
}

/* Dropdown Menu */
.dropdown {
  position: relative;
}

.dropdown-menu {
  position: absolute;
  top: 100%;
  left: 0;
  background: var(--bg-secondary);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-sm);
  padding: 8px 0;
  min-width: 180px;
  opacity: 0;
  visibility: hidden;
  transform: translateY(10px);
  transition: all var(--transition-fast);
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.5);
  display: flex;
  flex-direction: column;
}

.dropdown:hover .dropdown-menu {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}

.dropdown-menu li {
  width: 100%;
}

.dropdown-menu a {
  display: block;
  padding: 10px 16px;
  border-radius: 0;
}

.dropdown-menu a:hover {
  background: var(--glass-bg);
}

.caret {
  display: inline-block;
  margin-left: 4px;
  border-top: 4px solid currentColor;
  border-right: 4px solid transparent;
  border-left: 4px solid transparent;
  vertical-align: middle;
}

/* Hide mobile CTA on desktop */
.mobile-cta-item {
  display: none;
}

/* Nav actions */
.nav-actions {
  display: flex;
  align-items: center;
  gap: 12px;
  flex-shrink: 0;
}

.nav-cta {
  padding: 10px 22px;
  font-size: 0.88rem;
}

.nav-mobile-icon {
  display: none;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  color: var(--text-primary);
  background: var(--glass-bg);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-sm);
  transition: var(--transition-fast);
}

.nav-mobile-icon:hover {
  background: var(--accent-glow);
  color: var(--accent-light);
}

/* Hamburger */
.hamburger {
  display: none;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  gap: 5px;
  width: 40px;
  height: 40px;
  background: transparent;
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-sm);
  cursor: pointer;
  padding: 0;
  transition: background var(--transition-fast);
}

.hamburger:hover {
  background: var(--glass-bg);
}

.hamburger span {
  display: block;
  width: 18px;
  height: 2px;
  background: var(--text-primary);
  border-radius: 2px;
  transition: transform var(--transition-fast),
    opacity var(--transition-fast);
}

.hamburger.active span:nth-child(1) {
  transform: translateY(7px) rotate(45deg);
}

.hamburger.active span:nth-child(2) {
  opacity: 0;
}

.hamburger.active span:nth-child(3) {
  transform: translateY(-7px) rotate(-45deg);
}

.container {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 24px;
  width: 100%;
}

/* ===== SECTION TITLES ===== */
.section-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 6px 16px;
  background: var(--glass-bg);
  border: 1px solid var(--glass-border);
  border-radius: 100px;
  font-size: 0.8rem;
  color: var(--accent-light);
  letter-spacing: 0.5px;
  text-transform: uppercase;
  font-weight: 600;
  margin-bottom: 20px;
}

.section-badge .badge-dot {
  width: 6px;
  height: 6px;
  background: var(--accent-primary);
  border-radius: 50%;
  animation: pulse-dot 2s ease-in-out infinite;
}

@keyframes pulse-dot {

  0%,
  100% {
    opacity: 1;
    transform: scale(1);
  }

  50% {
    opacity: 0.5;
    transform: scale(1.4);
  }
}

.section-title {
  font-size: clamp(1.8rem, 4vw, 2.8rem);
  font-weight: 700;
  line-height: 1.2;
  margin-bottom: 16px;
  letter-spacing: -0.02em;
}

.section-subtitle {
  font-size: 1.05rem;
  color: var(--text-secondary);
  max-width: 560px;
  line-height: 1.7;
}

/* ===== BUTTONS ===== */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 13px 28px;
  border-radius: var(--radius-sm);
  font-weight: 600;
  font-size: 0.95rem;
  cursor: pointer;
  border: none;
  transition: var(--transition-fast);
  font-family: var(--font-main);
}

.btn-primary {
  background: linear-gradient(135deg, var(--accent-primary), #0284c7);
  color: #fff;
  box-shadow: 0 0 24px var(--accent-glow);
}

.btn-primary:hover {
  background: linear-gradient(135deg, var(--accent-light), var(--accent-primary));
  box-shadow: 0 4px 32px var(--accent-glow);
  transform: translateY(-2px);
}

.btn-secondary {
  background: var(--glass-bg);
  color: var(--text-primary);
  border: 1px solid var(--glass-border);
}

.btn-secondary:hover {
  background: var(--glass-hover);
  border-color: rgba(255, 255, 255, 0.15);
  transform: translateY(-2px);
}

.btn svg {
  width: 18px;
  height: 18px;
}

/* ===== GLASS CARD ===== */
.glass-card {
  background: var(--glass-bg);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-lg);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  transition: var(--transition-smooth);
}

.glass-card:hover {
  background: var(--glass-hover);
  border-color: rgba(255, 255, 255, 0.12);
  transform: translateY(-4px);
  box-shadow: 0 20px 60px rgba(0, 0, 0, 0.3);
}

/* ===== HERO ===== */
.hero {
  padding: 160px 0 80px;
  position: relative;
  overflow: hidden;
  min-height: 90vh;
  display: flex;
  align-items: center;
}

.hero::before {
  content: '';
  position: absolute;
  top: -200px;
  right: -200px;
  width: 600px;
  height: 600px;
  background: radial-gradient(circle, var(--accent-glow) 0%, transparent 70%);
  pointer-events: none;
  animation: float-glow 8s ease-in-out infinite;
}

.hero::after {
  content: '';
  position: absolute;
  bottom: -150px;
  left: -150px;
  width: 500px;
  height: 500px;
  background: radial-gradient(circle, var(--accent-warm-glow) 0%, transparent 70%);
  pointer-events: none;
}

@keyframes float-glow {

  0%,
  100% {
    transform: translate(0, 0);
  }

  50% {
    transform: translate(-40px, 30px);
  }
}

/* ===== VIDEO BACKGROUND (hero & page-hero) ===== */
.hero-bg-video,
.page-hero-bg-video {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  z-index: 0;
  pointer-events: none;
}

.hero-bg-overlay,
.page-hero-bg-overlay {
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  z-index: 1;
  background: linear-gradient(
    135deg,
    rgba(7, 11, 24, 0.88) 0%,
    rgba(7, 11, 24, 0.62) 55%,
    rgba(7, 11, 24, 0.82) 100%
  );
  pointer-events: none;
}

.hero-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 60px;
  align-items: center;
  position: relative;
  z-index: 2;
}

.hero-content {
  max-width: 540px;
}

.hero-title {
  font-size: clamp(2.2rem, 5vw, 3.4rem);
  font-weight: 800;
  line-height: 1.15;
  letter-spacing: -0.03em;
  margin-bottom: 20px;
}

.hero-title .highlight {
  background: linear-gradient(135deg, var(--accent-primary), var(--accent-warm));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.hero-description {
  font-size: 1.1rem;
  color: var(--text-secondary);
  margin-bottom: 36px;
  line-height: 1.8;
}

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

.hero-visual {
  display: flex;
  justify-content: center;
  align-items: center;
  position: relative;
}

.hero-visual img {
  border-radius: var(--radius-xl);
  max-width: 100%;
  box-shadow: 0 30px 80px rgba(0, 0, 0, 0.4);
}

/* ===== USER TYPES (n8n INTERACTIVE TAB) ===== */
.user-types {
  padding: var(--section-padding);
  position: relative;
}

.user-types .container {
  position: relative;
  z-index: 1;
}

.tabs-wrapper {
  display: grid;
  grid-template-columns: 280px 1fr;
  gap: 40px;
  margin-top: 48px;
}

.tab-menu {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.tab-btn {
  display: flex;
  align-items: center;
  gap: 14px;
  padding: 18px 22px;
  border-radius: var(--radius-md);
  cursor: pointer;
  border: 1px solid transparent;
  background: transparent;
  color: var(--text-secondary);
  font-size: 1rem;
  font-weight: 500;
  font-family: var(--font-main);
  transition: var(--transition-fast);
  text-align: left;
  position: relative;
}

.tab-btn::before {
  content: '';
  position: absolute;
  left: 0;
  top: 50%;
  transform: translateY(-50%);
  width: 3px;
  height: 0;
  background: var(--accent-primary);
  border-radius: 0 4px 4px 0;
  transition: var(--transition-smooth);
}

.tab-btn:hover {
  color: var(--text-primary);
  background: var(--glass-bg);
}

.tab-btn.active {
  background: var(--glass-bg);
  border-color: var(--glass-border);
  color: var(--text-primary);
}

.tab-btn.active::before {
  height: 60%;
}

.tab-btn .tab-icon {
  width: 40px;
  height: 40px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--glass-bg);
  border-radius: var(--radius-sm);
  font-size: 1.3rem;
  flex-shrink: 0;
  transition: var(--transition-fast);
}

.tab-btn.active .tab-icon {
  background: var(--accent-glow);
}

.tab-content-area {
  position: relative;
  min-height: 320px;
}

.tab-panel {
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  opacity: 0;
  visibility: hidden;
  transform: translateY(12px);
  transition: var(--transition-smooth);
}

.tab-panel.active {
  position: relative;
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}

.tab-panel-inner {
  padding: 40px;
  border-radius: var(--radius-lg);
  background: var(--glass-bg);
  border: 1px solid var(--glass-border);
  backdrop-filter: blur(16px);
  min-height: 320px;
  display: flex;
  flex-direction: column;
  justify-content: center;
}

.tab-panel-icon {
  font-size: 3rem;
  margin-bottom: 20px;
}

.tab-panel h3 {
  font-size: 1.5rem;
  font-weight: 700;
  margin-bottom: 14px;
}

.tab-panel p {
  color: var(--text-secondary);
  font-size: 1.02rem;
  line-height: 1.8;
  margin-bottom: 24px;
  max-width: 500px;
}

.tab-panel .btn {
  align-self: flex-start;
}

/* ===== FEATURES GRID ===== */
.features {
  padding: var(--section-padding);
  position: relative;
}

.features-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
  margin-top: 48px;
}

.feature-card {
  padding: 32px;
  cursor: default;
}

.feature-icon {
  width: 52px;
  height: 52px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: linear-gradient(135deg, var(--accent-glow), var(--accent-warm-glow));
  border-radius: var(--radius-md);
  font-size: 1.5rem;
  margin-bottom: 20px;
}

.feature-card h3 {
  font-size: 1.15rem;
  font-weight: 700;
  margin-bottom: 10px;
}

.feature-card p {
  color: var(--text-secondary);
  font-size: 0.92rem;
  line-height: 1.7;
}

/* ===== SOCIAL IMPACT (Fiziksel Okuryazarlık) ===== */
.social-impact {
  padding: var(--section-padding);
  position: relative;
  overflow: hidden;
}

.social-impact::before {
  content: '';
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  width: 800px;
  height: 400px;
  background: radial-gradient(ellipse, rgba(14, 165, 233, 0.06) 0%, transparent 70%);
  pointer-events: none;
}

.impact-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
  margin-top: 48px;
}

.impact-card {
  padding: 36px 30px;
  text-align: center;
}

.impact-card .impact-icon {
  width: 64px;
  height: 64px;
  margin: 0 auto 20px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--accent-glow), var(--accent-warm-glow));
  font-size: 1.8rem;
}

.impact-card h3 {
  font-size: 1.15rem;
  font-weight: 700;
  margin-bottom: 10px;
}

.impact-card p {
  color: var(--text-secondary);
  font-size: 0.92rem;
  line-height: 1.7;
}

/* ===== ADVANTAGES ===== */
.advantages {
  padding: var(--section-padding);
  position: relative;
}

.advantages-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
  margin-top: 48px;
}

.advantage-card {
  padding: 32px 24px;
  text-align: center;
  position: relative;
  overflow: hidden;
}

.advantage-card::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 50%;
  transform: translateX(-50%);
  width: 60px;
  height: 3px;
  background: linear-gradient(90deg, transparent, var(--accent-primary), transparent);
  opacity: 0;
  transition: var(--transition-smooth);
}

.advantage-card:hover::after {
  opacity: 1;
}

.advantage-icon {
  width: 56px;
  height: 56px;
  margin: 0 auto 20px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--glass-bg);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-md);
  font-size: 1.5rem;
  transition: var(--transition-fast);
}

.advantage-card:hover .advantage-icon {
  background: var(--accent-glow);
  border-color: rgba(14, 165, 233, 0.2);
}

.advantage-card h3 {
  font-size: 1.05rem;
  font-weight: 700;
  margin-bottom: 10px;
}

.advantage-card p {
  color: var(--text-secondary);
  font-size: 0.88rem;
  line-height: 1.7;
}

/* ===== SUB-PAGE: PAGE HERO ===== */
.page-hero {
  padding: 160px 0 80px;
  position: relative;
  overflow: hidden;
  text-align: center;
}

.page-hero::before {
  content: '';
  position: absolute;
  top: -100px;
  left: 50%;
  transform: translateX(-50%);
  width: 800px;
  height: 400px;
  background: radial-gradient(ellipse, var(--accent-glow) 0%, transparent 70%);
  pointer-events: none;
}

.page-hero-content {
  position: relative;
  z-index: 2;
  max-width: 640px;
  margin: 0 auto;
}

.page-hero .hero-buttons {
  justify-content: center;
}

/* ===== SUB-PAGE: DETAILS GRID ===== */
.page-details {
  padding: var(--section-padding);
}

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

.detail-card {
  padding: 36px 32px;
}

.detail-icon {
  width: 52px;
  height: 52px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: linear-gradient(135deg, var(--accent-glow), var(--accent-warm-glow));
  border-radius: var(--radius-md);
  margin-bottom: 20px;
}

.detail-card h3 {
  font-size: 1.15rem;
  font-weight: 700;
  margin-bottom: 12px;
}

.detail-card p {
  color: var(--text-secondary);
  font-size: 0.95rem;
  line-height: 1.8;
}

/* ===== SUB-PAGE: CTA BOX ===== */
.page-cta {
  padding: 0 0 80px;
}

.cta-box {
  text-align: center;
  padding: 60px 40px;
  position: relative;
  overflow: hidden;
}

.cta-box::before {
  content: '';
  position: absolute;
  top: 0;
  left: 50%;
  transform: translateX(-50%);
  width: 300px;
  height: 2px;
  background: linear-gradient(90deg, transparent, var(--accent-primary), transparent);
}

.cta-box h2 {
  font-size: clamp(1.4rem, 3vw, 1.8rem);
  font-weight: 700;
  margin-bottom: 12px;
}

.cta-box p {
  color: var(--text-secondary);
  font-size: 1rem;
  margin-bottom: 28px;
  max-width: 480px;
  margin-left: auto;
  margin-right: auto;
}

/* ===== FOOTER ===== */
.site-footer {
  padding: 60px 0 30px;
  border-top: 1px solid var(--glass-border);
  background: var(--bg-secondary);
}

.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: 40px;
  margin-bottom: 40px;
}

.footer-brand h3 {
  font-size: 1.4rem;
  font-weight: 700;
  margin-bottom: 12px;
}

.footer-brand h3 span {
  color: var(--accent-primary);
}

.footer-brand p {
  color: var(--text-secondary);
  font-size: 0.9rem;
  line-height: 1.7;
  max-width: 300px;
}

.footer-col h4 {
  font-size: 0.85rem;
  text-transform: uppercase;
  letter-spacing: 1px;
  color: var(--text-muted);
  margin-bottom: 16px;
  font-weight: 600;
}

.footer-col ul {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.footer-col a {
  color: var(--text-secondary);
  font-size: 0.9rem;
  transition: var(--transition-fast);
}

.footer-col a:hover {
  color: var(--accent-light);
}

.footer-bottom {
  padding-top: 24px;
  border-top: 1px solid var(--glass-border);
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 12px;
}

.footer-bottom p {
  color: var(--text-muted);
  font-size: 0.82rem;
}

/* ===== RESPONSIVE ===== */
@media (max-width: 1024px) {

  /* Header / Mobile menu */
  .nav-links {
    display: none;
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    flex-direction: column;
    gap: 8px;
    padding: 24px;
    background: rgba(7, 11, 24, 0.98);
    backdrop-filter: blur(24px);
    -webkit-backdrop-filter: blur(24px);
    border-bottom: 1px solid var(--glass-border);
    box-shadow: 0 24px 50px rgba(0, 0, 0, 0.6);
  }

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

  .nav-links a {
    padding: 14px 16px;
    font-size: 1.1rem;
    border-radius: var(--radius-sm);
  }

  .hamburger {
    display: flex;
  }

  .nav-cta {
    display: none;
  }

  .nav-mobile-icon {
    display: flex;
  }

  /* Dropdown on Mobile */
  .dropdown-menu {
    position: static;
    opacity: 1;
    visibility: visible;
    transform: none;
    box-shadow: none;
    border: none;
    background: transparent;
    padding-left: 0;
    margin-left: 16px;
    border-left: 2px solid var(--glass-border);
    margin-top: 8px;
    margin-bottom: 8px;
    display: none;
    gap: 4px;
  }

  .dropdown.open .dropdown-menu {
    display: flex;
  }

  .dropdown-menu a {
    padding: 10px 16px;
    font-size: 1rem;
    color: var(--text-secondary);
  }

  .dropdown-menu a:hover,
  .dropdown-menu a:active {
    color: var(--text-primary);
    background: var(--glass-bg);
  }

  .caret {
    border-top: 4px solid transparent;
    border-left: 4px solid currentColor;
    border-bottom: 4px solid transparent;
    margin-left: 12px;
    transition: transform var(--transition-fast);
  }

  .dropdown.open .caret {
    transform: rotate(90deg);
  }

  /* Existing responsive rules */
  .hero-grid {
    grid-template-columns: 1fr;
    gap: 40px;
  }

  .hero-content {
    max-width: 100%;
    text-align: center;
  }

  .hero-buttons {
    justify-content: center;
  }

  .hero-visual {
    order: -1;
  }

  .tabs-wrapper {
    grid-template-columns: 1fr;
  }

  .tab-menu {
    flex-direction: row;
    overflow-x: auto;
    gap: 12px; /* 14px'den 12px'e */
    padding-top: 16px; /* Zıplama efekti için üstte taşıma alanı yaratıldı */
    padding-bottom: 24px;
    scroll-snap-type: x mandatory;
    scroll-padding-left: 24px;
    -webkit-overflow-scrolling: touch;
    scrollbar-width: none;
    margin-left: -24px;
    margin-right: -24px;
    padding-left: 24px;
    padding-right: 24px;
  }

  .tab-menu::-webkit-scrollbar {
    display: none;
  }

  /* PREMİUM MOBİL KART TASARIMI (Kompakt App-Like Nav) */
  .tab-btn {
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: 16px 8px; /* Daha dar iç boşluk */
    width: 90px; /* Çok geniş alanı daralttık */
    border-radius: var(--radius-lg); /* Radius'u hafif kıstık */
    background: rgba(255, 255, 255, 0.02);
    border: 1px solid var(--glass-border);
    gap: 8px; /* İkon ve metin arası mesafe daraldı */
    scroll-snap-align: start;
    flex: 0 0 auto;
    transition: all 0.4s cubic-bezier(0.34, 1.56, 0.64, 1);
  }

  .tab-btn:hover {
    background: rgba(255, 255, 255, 0.04);
  }

  .tab-btn.active {
    background: linear-gradient(145deg, rgba(14, 165, 233, 0.15), rgba(14, 165, 233, 0.02));
    border-color: rgba(14, 165, 233, 0.3);
    box-shadow: 0 10px 24px var(--accent-glow), inset 0 1px 0 rgba(255, 255, 255, 0.1);
    transform: translateY(-4px); /* Taşmayı en aza indirmek için -6px'ten -4px'e düşürdük */
  }

  .tab-btn .tab-icon {
    width: 42px; /* 50px'den 42px'e */
    height: 42px;
    background: rgba(255, 255, 255, 0.03);
    border-radius: 50%;
    font-size: 1.25rem; /* İkon boyutu küçüldü */
    box-shadow: inset 0 2px 4px rgba(255, 255, 255, 0.03);
    transition: all 0.3s ease;
  }

  .tab-btn.active .tab-icon {
    background: linear-gradient(135deg, var(--accent-light), var(--accent-primary));
    color: #fff;
    box-shadow: 0 6px 16px var(--accent-glow);
    transform: scale(1.05);
  }

  .tab-btn span:not(.tab-icon) {
    font-size: 0.8rem; /* Font hafifçe küçüldü */
    font-weight: 600;
    letter-spacing: 0.1px;
    color: var(--text-secondary);
    white-space: nowrap;
    transition: color 0.3s ease;
  }

  .tab-btn.active span:not(.tab-icon) {
    color: #fff;
  }

  .tab-btn::before {
    display: none;
  }

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

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

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

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

@media (max-width: 640px) {
  :root {
    --section-padding: 64px 0;
  }

  .hero {
    padding: 120px 0 60px;
    min-height: auto;
  }

  .hero-title {
    font-size: 1.8rem;
  }

  .features-grid,
  .impact-grid,
  .advantages-grid,
  .details-grid {
    grid-template-columns: 1fr;
  }

  .page-hero {
    padding: 120px 0 60px;
  }

  .cta-box {
    padding: 40px 24px;
  }

  .footer-grid {
    grid-template-columns: 1fr;
    gap: 30px;
  }

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

/* ========================================= */
/* ===== İŞLETMECİ (B2B) SAYFASI STİLLERİ ==== */
/* ========================================= */

.hero-split {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 48px;
  align-items: center;
}

.mockup-window {
  background: var(--bg-card);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: 0 20px 40px rgba(0, 0, 0, 0.4), 0 0 0 1px rgba(255,255,255,0.05);
  display: flex;
  flex-direction: column;
}

.mockup-header {
  height: 32px;
  background: rgba(0,0,0,0.3);
  display: flex;
  align-items: center;
  padding: 0 16px;
  gap: 8px;
  border-bottom: 1px solid var(--glass-border);
}

.mdot {
  width: 12px;
  height: 12px;
  border-radius: 50%;
}
.mdot.red { background: #ef4444; }
.mdot.yellow { background: #f59e0b; }
.mdot.green { background: #10b981; }

.mockup-body {
  padding: 24px;
}

.mockup-title {
  color: var(--text-primary);
  font-weight: 600;
  margin-bottom: 20px;
  font-size: 1.1rem;
}

.mockup-chart-area {
  display: flex;
  align-items: flex-end;
  gap: 12px;
  height: 120px;
  margin-bottom: 24px;
  border-bottom: 1px dashed var(--glass-border);
  padding-bottom: 10px;
}

.mockup-chart-area .bar {
  flex: 1;
  background: var(--glass-hover);
  border-radius: 4px 4px 0 0;
  transition: height 1s ease-out;
}

.mockup-chart-area .highlight-bar {
  background: var(--accent-primary);
  box-shadow: 0 0 15px var(--accent-glow);
}

.mockup-stats-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
}

.mockup-stat {
  background: rgba(255,255,255,0.02);
  padding: 16px;
  border-radius: var(--radius-sm);
  border: 1px solid var(--glass-border);
}

.m-val {
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--accent-primary);
}

.m-lbl {
  font-size: 0.85rem;
  color: var(--text-secondary);
  margin-top: 4px;
}

/* BENTO GRID */
.bento-section {
  padding-top: 60px;
}

.bento-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  grid-auto-rows: minmax(220px, auto);
  gap: 24px;
  margin-top: 40px;
}

.bento-card {
  padding: 32px;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
}

.bento-card.large {
  grid-column: span 2;
  grid-row: span 2;
  background: linear-gradient(145deg, rgba(14, 165, 233, 0.05), transparent);
}

.bento-card.tall {
  grid-column: span 1;
  grid-row: span 2;
}

.bento-card.square {
  grid-column: span 1;
  grid-row: span 1;
}

.bento-icon {
  margin-bottom: 20px;
  color: var(--accent-primary);
  background: rgba(14, 165, 233, 0.1);
  width: 56px;
  height: 56px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: var(--radius-md);
}

.bento-card h3 {
  font-size: 1.4rem;
  margin-bottom: 12px;
  color: var(--text-primary);
}

.bento-card p {
  color: var(--text-secondary);
  line-height: 1.6;
}

.bento-list {
  margin-top: 24px;
  list-style: none;
  padding: 0;
}

.bento-list li {
  position: relative;
  padding-left: 24px;
  margin-bottom: 12px;
  color: var(--text-secondary);
}

.bento-list li::before {
  content: '→';
  position: absolute;
  left: 0;
  color: var(--accent-primary);
  font-weight: bold;
}

/* CALCULATOR SECTION */
.calc-wrapper {
  padding: 48px;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 48px;
  align-items: center;
}

.slider-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 20px;
}

.highlight-val {
  font-size: 1.2rem;
  font-weight: 700;
  color: var(--accent-primary);
}

.styled-slider {
  width: 100%;
  appearance: none;
  -webkit-appearance: none;
  height: 8px;
  background: rgba(255,255,255,0.1);
  border-radius: 4px;
  outline: none;
  margin-bottom: 40px;
}

.styled-slider::-webkit-slider-thumb {
  -webkit-appearance: none;
  width: 24px;
  height: 24px;
  border-radius: 50%;
  background: var(--accent-primary);
  cursor: pointer;
  box-shadow: 0 0 15px var(--accent-glow);
}

.calc-results {
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.result-box {
  display: flex;
  align-items: center;
  gap: 16px;
  background: rgba(0,0,0,0.2);
  padding: 20px;
  border-radius: var(--radius-md);
  border: 1px solid var(--glass-border);
}

.result-box.primary {
  background: linear-gradient(90deg, rgba(14, 165, 233, 0.1), transparent);
  border-color: rgba(14, 165, 233, 0.3);
}

.res-icon {
  color: var(--accent-primary);
}

.res-info {
  display: flex;
  flex-direction: column;
}

.res-num {
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--text-primary);
}

.res-label {
  font-size: 0.85rem;
  color: var(--text-secondary);
}

/* Responsive Overrides */
@media (max-width: 1024px) {
  .hero-split, .calc-wrapper {
    grid-template-columns: 1fr;
  }
  .bento-grid {
    grid-template-columns: 1fr 1fr;
  }
  .bento-card.large {
    grid-column: span 2;
  }
  .bento-card.tall {
    grid-column: span 1;
    grid-row: span 1;
  }
}

@media (max-width: 640px) {
  .bento-grid {
    grid-template-columns: 1fr;
  }
  .bento-card.large, .bento-card.tall, .bento-card.square {
    grid-column: span 1;
    grid-row: auto;
  }
  .calc-wrapper {
    padding: 24px;
  }
}

/* ===== ANIMATIONS ===== */
.fade-up {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity 0.7s ease, transform 0.7s ease;
}

.fade-up.visible {
  opacity: 1;
  transform: translateY(0);
}