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

/* --- TASARIM SİSTEMİ VE DEĞİŞKENLER --- */
:root {
  --font-heading: 'Outfit', sans-serif;
  --font-body: 'Inter', sans-serif;
  
  /* Renk Paleti */
  --bg-primary: #08090d;
  --bg-secondary: rgba(13, 17, 28, 0.45);
  --bg-tertiary: rgba(22, 28, 45, 0.7);
  
  --color-primary: #8b5cf6;     /* Canlı Menekşe */
  --color-secondary: #06b6d4;   /* Siber Cyan */
  --color-accent: #6366f1;      /* Derin İndigo */
  --color-success: #10b981;     /* Canlı Zümrüt */
  
  --text-main: #f3f4f6;         /* Açık Gri */
  --text-muted: #9ca3af;        /* Soluk Gri */
  --text-dark: #1f2937;         /* Koyu */
  
  /* Cam Efekti Özellikleri */
  --glass-bg: rgba(13, 17, 28, 0.45);
  --glass-border: rgba(255, 255, 255, 0.08);
  --glass-shadow: 0 8px 32px 0 rgba(0, 0, 0, 0.5);
  --glass-blur: blur(16px);
  
  /* Geçiş Süreleri */
  --transition-fast: 0.2s ease;
  --transition-normal: 0.4s cubic-bezier(0.16, 1, 0.3, 1);
  --transition-slow: 0.8s cubic-bezier(0.16, 1, 0.3, 1);
}

/* --- SIFIRLAMA VE TEMEL STİLLER --- */
* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
  scroll-behavior: smooth;
  -webkit-tap-highlight-color: transparent;
}

html {
  width: 100%;
  height: 100%;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

body {
  background-color: var(--bg-primary);
  color: var(--text-main);
  font-family: var(--font-body);
  line-height: 1.6;
  overflow-x: hidden;
  width: 100%;
  min-height: 100vh;
  position: relative;
}

/* Özel Scrollbar */
::-webkit-scrollbar {
  width: 10px;
}
::-webkit-scrollbar-track {
  background: var(--bg-primary);
}
::-webkit-scrollbar-thumb {
  background: rgba(139, 92, 246, 0.3);
  border-radius: 5px;
  border: 2px solid var(--bg-primary);
}
::-webkit-scrollbar-thumb:hover {
  background: rgba(139, 92, 246, 0.6);
}

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

ul {
  list-style: none;
}

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

/* Arka Plan Glow Efektleri */
.ambient-glow {
  position: absolute;
  width: 600px;
  height: 600px;
  border-radius: 50%;
  filter: blur(140px);
  opacity: 0.2;
  pointer-events: none;
  z-index: 0;
  animation: pulseGlow 10s infinite alternate;
}

.glow-1 {
  background: var(--color-primary);
  top: -10%;
  right: -5%;
}

.glow-2 {
  background: var(--color-secondary);
  top: 40%;
  left: -10%;
}

.glow-3 {
  background: var(--color-accent);
  bottom: -5%;
  right: 10%;
}

@keyframes pulseGlow {
  0% { transform: scale(1) translate(0, 0); opacity: 0.15; }
  100% { transform: scale(1.15) translate(30px, -30px); opacity: 0.25; }
}

/* Dinamik Parçacık Arka Planı */
#particle-canvas {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  z-index: -1;
  pointer-events: none;
}

/* Konteyner Düzeni */
.container {
  width: 100%;
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 2rem;
  box-sizing: border-box;
}

section {
  position: relative;
  padding: 7rem 0 5rem 0;
  width: 100%;
}

/* --- KULLANIŞLI SINIFLAR (UTILITIES) --- */
.glass-card {
  background: var(--glass-bg);
  backdrop-filter: var(--glass-blur);
  -webkit-backdrop-filter: var(--glass-blur);
  border: 1px solid var(--glass-border);
  box-shadow: var(--glass-shadow);
  border-radius: 16px;
  transition: var(--transition-normal);
}

.glass-card:hover {
  border-color: rgba(255, 255, 255, 0.15);
  box-shadow: 0 12px 40px 0 rgba(0, 0, 0, 0.6);
  transform: translateY(-5px);
}

.gradient-text {
  background: linear-gradient(135deg, #ffffff 30%, var(--text-muted) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.neon-text-cyan {
  background: linear-gradient(135deg, #00f2fe 0%, #4facfe 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.neon-text-purple {
  background: linear-gradient(135deg, #b92b27 0%, #1565c0 100%);
  background: linear-gradient(135deg, #f472b6 0%, #a78bfa 50%, #3b82f6 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.btn {
  display: inline-flex;
  align-items: center;
  gap: 0.75rem;
  padding: 0.85rem 2rem;
  font-family: var(--font-heading);
  font-weight: 600;
  font-size: 0.95rem;
  border-radius: 30px;
  cursor: pointer;
  transition: var(--transition-normal);
  border: none;
  position: relative;
  overflow: hidden;
}

.btn-primary {
  background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-accent) 100%);
  color: #fff;
  box-shadow: 0 0 20px rgba(139, 92, 246, 0.3);
}

.btn-primary::after {
  content: '';
  position: absolute;
  top: 0;
  left: -50%;
  width: 200%;
  height: 100%;
  background: linear-gradient(
    90deg,
    rgba(255, 255, 255, 0) 0%,
    rgba(255, 255, 255, 0.2) 50%,
    rgba(255, 255, 255, 0) 100%
  );
  transform: skewX(-25deg);
  transition: 0.75s ease;
}

.btn-primary:hover {
  box-shadow: 0 0 30px rgba(139, 92, 246, 0.6);
  transform: translateY(-2px);
}

.btn-primary:hover::after {
  left: 125%;
}

.btn-secondary {
  background: rgba(255, 255, 255, 0.05);
  color: var(--text-main);
  border: 1px solid rgba(255, 255, 255, 0.1);
}

.btn-secondary:hover {
  background: rgba(255, 255, 255, 0.1);
  border-color: rgba(255, 255, 255, 0.2);
  transform: translateY(-2px);
}

.section-tag {
  font-family: var(--font-heading);
  text-transform: uppercase;
  letter-spacing: 0.2em;
  font-size: 0.8rem;
  font-weight: 700;
  color: var(--color-secondary);
  margin-bottom: 0.75rem;
  display: block;
}

.section-title {
  font-family: var(--font-heading);
  font-size: 2.5rem;
  font-weight: 800;
  line-height: 1.2;
  margin-bottom: 1.5rem;
}

.section-desc {
  color: var(--text-muted);
  font-size: 1.1rem;
  max-width: 600px;
  margin-bottom: 3.5rem;
}

/* --- KART GEÇİŞ EFEKTLERİ (SCROLL REVEAL) --- */
.reveal {
  opacity: 0;
  transform: translateY(35px);
  transition: opacity 0.8s ease, transform 0.8s ease;
}

.reveal.active {
  opacity: 1;
  transform: translateY(0);
}

/* --- HEADER / NAVBAR --- */
header {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  z-index: 100;
  transition: var(--transition-normal);
  border-bottom: 1px solid transparent;
}

header.scrolled {
  background: rgba(8, 9, 13, 0.8);
  backdrop-filter: var(--glass-blur);
  -webkit-backdrop-filter: var(--glass-blur);
  border-bottom: 1px solid var(--glass-border);
  padding: 0.8rem 0;
}

header .container {
  display: flex;
  justify-content: space-between;
  align-items: center;
  height: 80px;
  transition: var(--transition-normal);
}

header.scrolled .container {
  height: 60px;
}

.logo {
  font-family: var(--font-heading);
  font-weight: 800;
  font-size: 1.5rem;
  display: flex;
  align-items: center;
  gap: 0.5rem;
  background: linear-gradient(135deg, #fff 40%, var(--color-secondary) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.logo span {
  color: var(--color-primary);
  -webkit-text-fill-color: initial;
}

.nav-links {
  display: flex;
  gap: 2.5rem;
}

.nav-links a {
  font-size: 0.95rem;
  font-weight: 500;
  color: var(--text-muted);
  position: relative;
}

.nav-links a:hover, .nav-links a.active {
  color: var(--text-main);
}

.nav-links a::after {
  content: '';
  position: absolute;
  bottom: -6px;
  left: 0;
  width: 0;
  height: 2px;
  background: linear-gradient(90deg, var(--color-primary), var(--color-secondary));
  transition: var(--transition-fast);
  border-radius: 2px;
}

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

.menu-btn {
  display: none;
  background: none;
  border: none;
  cursor: pointer;
}

.menu-btn span {
  display: block;
  width: 25px;
  height: 2px;
  background-color: var(--text-main);
  margin: 5px 0;
  transition: var(--transition-fast);
}

/* --- HERO BÖLÜMÜ --- */
.hero {
  min-height: 100vh;
  display: flex;
  align-items: center;
  padding-top: 120px;
  position: relative;
  overflow: hidden;
}

.hero-grid {
  display: grid;
  grid-template-columns: 1.2fr 0.8fr;
  align-items: center;
  gap: 4rem;
}

.hero-tag {
  background: rgba(139, 92, 246, 0.12);
  border: 1px solid rgba(139, 92, 246, 0.25);
  color: #c084fc;
  padding: 0.4rem 1.2rem;
  border-radius: 30px;
  font-size: 0.85rem;
  font-family: var(--font-heading);
  font-weight: 600;
  letter-spacing: 0.05em;
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  margin-bottom: 1.5rem;
}

.hero-tag span {
  width: 8px;
  height: 8px;
  background-color: var(--color-primary);
  border-radius: 50%;
  display: inline-block;
  box-shadow: 0 0 10px var(--color-primary);
  animation: pulseLight 1.5s infinite alternate;
}

@keyframes pulseLight {
  0% { transform: scale(0.8); opacity: 0.5; }
  100% { transform: scale(1.2); opacity: 1; box-shadow: 0 0 15px var(--color-primary); }
}

.hero-title {
  font-family: var(--font-heading);
  font-size: 4.5rem;
  font-weight: 800;
  line-height: 1.1;
  margin-bottom: 1.5rem;
  letter-spacing: -0.02em;
}

.hero-desc {
  color: var(--text-muted);
  font-size: 1.2rem;
  margin-bottom: 2.5rem;
  max-width: 580px;
  font-weight: 300;
  line-height: 1.7;
}

.hero-actions {
  display: flex;
  gap: 1.5rem;
  align-items: center;
}

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

.hero-sphere {
  width: 320px;
  height: 320px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-secondary) 100%);
  filter: blur(60px);
  position: absolute;
  opacity: 0.45;
  animation: floatSphere 8s infinite alternate ease-in-out;
}

@keyframes floatSphere {
  0% { transform: translateY(0px) rotate(0deg) scale(1); }
  100% { transform: translateY(-25px) rotate(180deg) scale(1.1); }
}

.visual-card {
  position: relative;
  z-index: 2;
  width: 100%;
  max-width: 380px;
  padding: 2rem;
  border-radius: 24px;
  text-align: center;
}

.visual-card-avatar {
  width: 110px;
  height: 110px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--color-primary), var(--color-secondary));
  margin: 0 auto 1.5rem auto;
  padding: 4px;
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.4);
  position: relative;
}

.visual-card-avatar img {
  width: 100%;
  height: 100%;
  border-radius: 50%;
  object-fit: cover;
  background-color: #111;
}

.visual-card-avatar::after {
  content: '';
  position: absolute;
  bottom: 5px;
  right: 5px;
  width: 18px;
  height: 18px;
  background: var(--color-success);
  border: 3px solid var(--bg-primary);
  border-radius: 50%;
}

.visual-card h3 {
  font-family: var(--font-heading);
  font-size: 1.6rem;
  font-weight: 700;
  margin-bottom: 0.25rem;
}

.visual-card p {
  color: var(--color-secondary);
  font-size: 0.9rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  margin-bottom: 2rem;
}

.social-bar {
  display: flex;
  justify-content: center;
  gap: 1.25rem;
}

.social-icon {
  width: 44px;
  height: 44px;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.03);
  border: 1px solid rgba(255, 255, 255, 0.08);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.2rem;
  transition: var(--transition-normal);
}

.social-icon:hover {
  background: rgba(139, 92, 246, 0.15);
  border-color: var(--color-primary);
  color: #fff;
  transform: translateY(-3px);
  box-shadow: 0 5px 15px rgba(139, 92, 246, 0.3);
}

/* --- TELEGRAM SHOWER / TOP BÖLÜMÜ --- */
.tg-featured {
  background: linear-gradient(180deg, rgba(8, 9, 13, 0) 0%, rgba(13, 17, 28, 0.3) 50%, rgba(8, 9, 13, 0) 100%);
  position: relative;
  z-index: 10;
  padding-top: 120px;
  padding-bottom: 100px;
}

.tg-header {
  text-align: center;
  margin-bottom: 4rem;
}

.tg-header .section-title {
  font-size: 3rem;
  font-weight: 800;
  margin-bottom: 1rem;
}

.tg-header .section-desc {
  font-size: 1.15rem;
  color: var(--text-muted);
  max-width: 700px;
}

.tg-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
  gap: 2.5rem;
  max-width: 1100px;
  margin: 0 auto;
}

.tg-post-card {
  padding: 0;
  min-height: auto;
  display: flex;
  flex-direction: column;
  overflow: hidden;
  transition: var(--transition-normal);
  position: relative;
  border: 1px solid rgba(255, 255, 255, 0.08);
  background: rgba(13, 17, 28, 0.35);
}

.tg-post-card:hover {
  border-color: rgba(139, 92, 246, 0.3);
  box-shadow: 0 8px 32px rgba(139, 92, 246, 0.15);
  transform: translateY(-8px);
}

.tg-link-direct {
  display: flex;
  flex-direction: column;
  height: 100%;
  width: 100%;
  text-decoration: none;
  color: inherit;
}

.tg-post-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 1.5rem;
  border-bottom: 1px solid rgba(255, 255, 255, 0.06);
  background: rgba(0, 0, 0, 0.2);
  position: relative;
  z-index: 3;
}

.tg-post-header i {
  font-size: 1.2rem;
  opacity: 0.6;
  transition: var(--transition-fast);
}

.tg-post-card:hover .tg-post-header i {
  opacity: 1;
  transform: translate(2px, -2px);
}

.tg-post-meta {
  display: flex;
  align-items: center;
  gap: 1rem;
}

.tg-channel-avatar {
  width: 50px;
  height: 50px;
  border-radius: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
  font-family: var(--font-heading);
  color: #fff;
  font-size: 1.3rem;
  flex-shrink: 0;
}

.tg-channel-name h4 {
  font-family: var(--font-heading);
  font-size: 1.05rem;
  font-weight: 600;
  margin-bottom: 0.25rem;
}

.tg-channel-name p {
  font-size: 0.85rem;
  color: var(--text-muted);
}

.tg-post-content {
  flex-grow: 1;
  position: relative;
  background: linear-gradient(135deg, rgba(0, 0, 0, 0.1) 0%, rgba(0, 0, 0, 0.05) 100%);
  padding: 0 8px 8px 0;
  overflow: hidden;
  width: 100%;
}

.tg-loader {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 1rem;
  color: var(--text-muted);
  font-size: 0.9rem;
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  z-index: 2;
  width: 100%;
}

.spinner {
  width: 40px;
  height: 40px;
  border: 3px solid rgba(139, 92, 246, 0.15);
  border-top-color: #8b5cf6;
  border-radius: 50%;
  animation: spin 1s infinite linear;
}

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

.tg-post-content iframe {
  border: none;
  width: 100% !important;
  max-width: 100% !important;
  min-width: 100% !important;
  height: 265px !important; /* Force a tighter height to prevent empty space and match wider layout */
  opacity: 0;
  transition: opacity var(--transition-normal);
  z-index: 2;
  border-radius: 8px;
}

.tg-post-content.loaded iframe {
  opacity: 1;
}

.tg-post-content.loaded .tg-loader {
  display: none;
}

/* --- ABOUT VE STATS --- */
.about {
  position: relative;
}

.about-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 5rem;
  align-items: center;
}

.about-content h2 {
  font-family: var(--font-heading);
  font-size: 2.5rem;
  font-weight: 800;
  margin-bottom: 1.5rem;
}

.about-text {
  color: var(--text-muted);
  margin-bottom: 2rem;
  font-size: 1.05rem;
  line-height: 1.7;
}

.stats-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 2rem;
}

.stat-card {
  padding: 2rem;
  text-align: center;
}

.stat-num {
  font-family: var(--font-heading);
  font-size: 3.5rem;
  font-weight: 800;
  color: #fff;
  line-height: 1;
  margin-bottom: 0.5rem;
  background: linear-gradient(135deg, #fff 30%, var(--color-primary) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.stat-label {
  color: var(--text-muted);
  font-size: 0.95rem;
  font-weight: 500;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

/* --- SERVICES BÖLÜMÜ --- */
.services {
  position: relative;
}

.services-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 2rem;
}

.service-card {
  padding: 2.5rem 2rem;
  position: relative;
  overflow: hidden;
}

.service-icon-box {
  width: 60px;
  height: 60px;
  border-radius: 16px;
  background: rgba(139, 92, 246, 0.08);
  border: 1px solid rgba(139, 92, 246, 0.2);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--color-primary);
  font-size: 1.8rem;
  margin-bottom: 2rem;
  transition: var(--transition-normal);
}

.service-card:hover .service-icon-box {
  background: var(--color-primary);
  color: #fff;
  transform: scale(1.1) rotate(5deg);
  box-shadow: 0 8px 20px rgba(139, 92, 246, 0.4);
}

.service-card h3 {
  font-family: var(--font-heading);
  font-size: 1.35rem;
  font-weight: 700;
  margin-bottom: 1rem;
}

.service-card p {
  color: var(--text-muted);
  font-size: 0.95rem;
  line-height: 1.6;
}

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

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

/* --- PORTFOLIO (GEÇMİŞ ÇALIŞMALAR) --- */
.portfolio {
  position: relative;
}

.portfolio-grid {
  display: flex;
  flex-direction: column;
  gap: 6rem;
}

.portfolio-item {
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: 4rem;
  align-items: center;
}

.portfolio-item:nth-child(even) {
  grid-template-columns: 0.9fr 1.1fr;
}

.portfolio-item:nth-child(even) .portfolio-image-side {
  order: 2;
}

.portfolio-image-side {
  position: relative;
  border-radius: 20px;
  overflow: hidden;
  box-shadow: var(--glass-shadow);
  border: 1px solid var(--glass-border);
  transition: var(--transition-normal);
}

.portfolio-image-side::after {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: linear-gradient(180deg, rgba(8, 9, 13, 0) 60%, rgba(8, 9, 13, 0.8) 100%);
  pointer-events: none;
}

.portfolio-image-side img {
  width: 100%;
  transition: transform 1.2s var(--transition-normal);
}

.portfolio-image-side:hover img {
  transform: scale(1.04);
}

.portfolio-info {
  display: flex;
  flex-direction: column;
  gap: 1.25rem;
}

.portfolio-client {
  color: var(--color-secondary);
  font-weight: 600;
  text-transform: uppercase;
  font-size: 0.85rem;
  letter-spacing: 0.1em;
}

.portfolio-name {
  font-family: var(--font-heading);
  font-size: 2.2rem;
  font-weight: 800;
  line-height: 1.2;
}

.portfolio-description {
  color: var(--text-muted);
  font-size: 1.05rem;
  line-height: 1.6;
}

.portfolio-metrics {
  display: flex;
  gap: 2rem;
  margin: 1rem 0;
  padding: 1.25rem;
  border-radius: 12px;
  background: rgba(255, 255, 255, 0.02);
  border: 1px solid rgba(255, 255, 255, 0.05);
}

.metric-item {
  display: flex;
  flex-direction: column;
}

.metric-value {
  font-family: var(--font-heading);
  font-size: 1.75rem;
  font-weight: 700;
  color: #fff;
}

.metric-label {
  font-size: 0.8rem;
  color: var(--text-muted);
}

.portfolio-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
}

.portfolio-tag {
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid rgba(255, 255, 255, 0.08);
  padding: 0.4rem 1rem;
  border-radius: 30px;
  font-size: 0.85rem;
  color: var(--text-muted);
}

/* --- TELEGRAM PLAYGROUND / TEST ALANI --- */
.tg-playground {
  position: relative;
}

.playground-card {
  max-width: 800px;
  margin: 0 auto;
  padding: 3rem;
  text-align: center;
}

.playground-card h3 {
  font-family: var(--font-heading);
  font-size: 1.8rem;
  font-weight: 700;
  margin-bottom: 1rem;
}

.playground-card p {
  color: var(--text-muted);
  margin-bottom: 2.5rem;
}

.playground-input-group {
  display: flex;
  max-width: 600px;
  margin: 0 auto 2.5rem auto;
  gap: 0.75rem;
}

.playground-input-group input {
  flex-grow: 1;
  background: rgba(0, 0, 0, 0.2);
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: 30px;
  padding: 0.9rem 1.5rem;
  color: #fff;
  font-family: var(--font-body);
  font-size: 0.95rem;
  outline: none;
  transition: var(--transition-normal);
}

.playground-input-group input:focus {
  border-color: var(--color-primary);
  box-shadow: 0 0 15px rgba(139, 92, 246, 0.2);
}

.playground-input-group button {
  white-space: nowrap;
}

.playground-result {
  max-width: 500px;
  margin: 0 auto;
  border-radius: 12px;
  overflow: hidden;
  display: none;
  background: rgba(0, 0, 0, 0.2);
  border: 1px solid rgba(255, 255, 255, 0.05);
  box-shadow: 0 15px 40px rgba(0,0,0,0.5);
  transition: var(--transition-normal);
}

.playground-result.active {
  display: block;
}

.playground-result-header {
  background: rgba(255, 255, 255, 0.02);
  border-bottom: 1px solid rgba(255, 255, 255, 0.05);
  padding: 0.75rem 1.25rem;
  font-size: 0.85rem;
  font-weight: 500;
  color: var(--text-muted);
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.playground-result-frame-wrapper {
  min-height: 380px;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 1rem;
  position: relative;
}

.playground-result-frame-wrapper iframe {
  width: 100%;
  height: 100%;
  border: none;
  z-index: 2;
  opacity: 0;
  transition: opacity var(--transition-normal);
  border-radius: 8px;
}

.playground-result-frame-wrapper.loaded iframe {
  opacity: 1;
}

.playground-result-frame-wrapper.loaded .tg-loader {
  display: none;
}

.playground-error {
  color: #f87171;
  font-size: 0.85rem;
  margin-top: -1.75rem;
  margin-bottom: 1.5rem;
  display: none;
}

/* --- CONTACT / İLETİŞİM --- */
.contact {
  position: relative;
}

.contact-grid {
  display: grid;
  grid-template-columns: 0.9fr 1.1fr;
  gap: 5rem;
  align-items: start;
}

.contact-details {
  display: flex;
  flex-direction: column;
  gap: 2.5rem;
}

.contact-item {
  display: flex;
  gap: 1.5rem;
  align-items: center;
}

.contact-icon {
  width: 56px;
  height: 56px;
  border-radius: 50%;
  background: rgba(6, 182, 212, 0.08);
  border: 1px solid rgba(6, 182, 212, 0.2);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--color-secondary);
  font-size: 1.5rem;
}

.contact-info-text h4 {
  font-family: var(--font-heading);
  font-size: 1.1rem;
  font-weight: 600;
  margin-bottom: 0.25rem;
}

.contact-info-text p {
  color: var(--text-muted);
}

.contact-form {
  padding: 3rem;
}

.form-group {
  position: relative;
  margin-bottom: 2rem;
}

.form-input {
  width: 100%;
  background: rgba(0, 0, 0, 0.2);
  border: 1px solid rgba(255, 255, 255, 0.08);
  border-radius: 12px;
  padding: 1.1rem 1.25rem;
  color: #fff;
  font-family: var(--font-body);
  font-size: 0.95rem;
  outline: none;
  transition: var(--transition-normal);
}

.form-input:focus {
  border-color: var(--color-primary);
  box-shadow: 0 0 15px rgba(139, 92, 246, 0.15);
}

.form-label {
  position: absolute;
  left: 1.25rem;
  top: 1.1rem;
  color: var(--text-muted);
  pointer-events: none;
  transition: var(--transition-normal);
}

.form-input:focus ~ .form-label,
.form-input:not(:placeholder-shown) ~ .form-label {
  top: -10px;
  left: 0.75rem;
  font-size: 0.75rem;
  color: var(--color-primary);
  background-color: #0b0d14;
  padding: 0 0.5rem;
  border-radius: 4px;
}

textarea.form-input {
  min-height: 150px;
  resize: vertical;
}

.form-status {
  padding: 1rem;
  border-radius: 8px;
  font-size: 0.9rem;
  text-align: center;
  margin-top: 1.5rem;
  display: none;
}

.form-status.success {
  display: block;
  background: rgba(16, 185, 129, 0.1);
  border: 1px solid rgba(16, 185, 129, 0.2);
  color: var(--color-success);
}

.form-status.error {
  display: block;
  background: rgba(248, 113, 113, 0.1);
  border: 1px solid rgba(248, 113, 113, 0.2);
  color: #f87171;
}

/* --- FOOTER --- */
footer {
  border-top: 1px solid var(--glass-border);
  padding: 3rem 0;
  position: relative;
  z-index: 10;
  background-color: #06070a;
}

footer .container {
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 1.5rem;
}

.footer-copy {
  color: var(--text-muted);
  font-size: 0.9rem;
}

.footer-logo {
  font-family: var(--font-heading);
  font-weight: 700;
  font-size: 1.25rem;
}

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

/* --- MOBILE RESPONSIVENESS (MOBİL UYUMLULUK) --- */
@media (max-width: 1024px) {
  .hero-title {
    font-size: 3.5rem;
  }
  .hero-grid {
    gap: 2.5rem;
  }
  .portfolio-item, .portfolio-item:nth-child(even) {
    grid-template-columns: 1fr;
    gap: 2.5rem;
  }
  .portfolio-item:nth-child(even) .portfolio-image-side {
    order: 0;
  }
  .about-grid, .contact-grid {
    grid-template-columns: 1fr;
    gap: 3.5rem;
  }
}

@media (max-width: 768px) {
  section {
    padding: 5rem 0 3rem 0;
    width: 100%;
  }
  .container {
    padding: 0 1.5rem;
    box-sizing: border-box;
  }
  header .container {
    height: 70px;
    padding: 0 1.5rem;
  }
  header.scrolled .container {
    height: 50px;
  }
  .logo {
    font-size: 1.3rem;
  }
  .section-title {
    font-size: 2rem;
  }
  .tg-featured {
    padding-top: 85px;
    padding-bottom: 60px;
    width: 100%;
  }
  #telegram-updates .tg-header {
    display: none;
  }
  #telegram-updates .container {
    padding: 0 8px;
  }
  .tg-grid {
    grid-template-columns: 1fr;
    gap: 1.5rem;
    padding: 0;
  }
  .tg-post-card {
    min-height: auto;
  }
  .tg-post-header {
    padding: 1rem;
  }
  .tg-channel-avatar {
    width: 40px;
    height: 40px;
    font-size: 1rem;
  }
  .tg-channel-name h4 {
    font-size: 0.95rem;
  }
  .tg-channel-name p {
    font-size: 0.8rem;
  }
  .hero {
    padding-top: 100px;
  }
  .hero-grid {
    grid-template-columns: 1fr;
  }
  .hero-visual {
    order: -1;
  }
  .hero-title {
    font-size: 3rem;
  }
  .hero-actions {
    flex-direction: column;
    gap: 1rem;
    width: 100%;
    align-items: stretch;
  }
  .hero-actions .btn {
    width: 100%;
    justify-content: center;
  }
  .about-content h2 {
    font-size: 1.8rem;
    line-height: 1.25;
  }
  .stats-grid {
    grid-template-columns: 1fr;
    gap: 1.25rem;
  }
  .stat-card {
    padding: 1.5rem 1rem;
  }
  .stat-num {
    font-size: 2.8rem;
  }
  .portfolio-name {
    font-size: 1.8rem;
    line-height: 1.25;
  }
  .portfolio-metrics {
    flex-direction: column;
    gap: 1.25rem;
    align-items: stretch;
    padding: 1.25rem;
  }
  .portfolio-metrics .metric-item {
    border-left: none !important;
    padding-left: 0 !important;
    border-bottom: 1px solid rgba(255, 255, 255, 0.06);
    padding-bottom: 0.75rem;
  }
  .portfolio-metrics .metric-item:last-child {
    border-bottom: none;
    padding-bottom: 0;
  }
  .metric-value {
    font-size: 1.5rem;
  }
  .nav-links {
    position: fixed;
    top: 80px;
    left: -100%;
    width: 100%;
    height: calc(100vh - 80px);
    background: rgba(8, 9, 13, 0.95);
    backdrop-filter: var(--glass-blur);
    flex-direction: column;
    align-items: center;
    padding-top: 3rem;
    gap: 2.5rem;
    transition: var(--transition-normal);
  }
  .nav-links.active {
    left: 0;
  }
  .menu-btn {
    display: block;
  }
  .menu-btn.active span:nth-child(1) {
    transform: translateY(7px) rotate(45deg);
  }
  .menu-btn.active span:nth-child(2) {
    opacity: 0;
  }
  .menu-btn.active span:nth-child(3) {
    transform: translateY(-7px) rotate(-45deg);
  }
  .playground-card {
    padding: 2rem 1.5rem;
  }
  .playground-input-group {
    flex-direction: column;
  }
  .playground-input-group input {
    border-radius: 30px;
    width: 100%;
  }
  .playground-input-group button {
    width: 100%;
  }
  .contact-form {
    padding: 2rem 1.5rem;
  }
}

@media (max-width: 480px) {
  header .container {
    height: 60px;
    padding: 0 1rem;
  }
  header.scrolled .container {
    height: 50px;
  }
  .logo {
    font-size: 1.15rem;
  }
  .menu-btn {
    display: block !important;
  }
  .nav-links {
    top: 60px;
    height: calc(100vh - 60px);
  }
  .tg-featured {
    padding-top: 75px;
    padding-bottom: 40px;
  }
  .tg-header {
    margin-bottom: 2rem;
  }
  .tg-header .section-tag {
    font-size: 0.8rem;
  }
  .tg-header .section-title {
    font-size: 1.75rem;
    margin-bottom: 0.75rem;
    font-weight: 700;
  }
  .tg-header .section-desc {
    font-size: 0.95rem;
    margin-bottom: 2rem !important;
    line-height: 1.5;
    padding: 0 1rem;
  }
  .tg-grid {
    gap: 1rem;
    padding: 0;
  }
  .tg-post-card {
    min-height: auto;
    border-radius: 14px;
    padding: 0;
  }
  .tg-post-card:hover {
    transform: translateY(-4px);
  }
  .tg-post-header {
    padding: 1rem;
    border-radius: 14px 14px 0 0;
  }
  .tg-post-meta {
    gap: 0.8rem;
  }
  .tg-channel-avatar {
    width: 44px;
    height: 44px;
    font-size: 1rem;
    border-radius: 10px;
  }
  .tg-channel-name h4 {
    font-size: 0.9rem;
    font-weight: 600;
  }
  .tg-channel-name p {
    font-size: 0.8rem;
    margin-top: 0.2rem;
  }
  .tg-post-header i {
    font-size: 1.1rem;
  }
  .tg-post-content {
    padding: 0 8px 8px 0;
    min-height: 200px;
  }
  .container {
    width: 100%;
    padding: 0 1.125rem;
    box-sizing: border-box;
  }
}

/* iPhone 14 Pro Max (430px) */
@media (max-width: 430px) and (min-width: 385px) {
  header .container {
    height: 65px;
  }
  .logo {
    font-size: 1.2rem;
  }
  .nav-links {
    top: 65px;
  }
  .tg-featured {
    padding-top: 80px;
    padding-bottom: 50px;
  }
  .tg-header .section-title {
    font-size: 1.8rem;
  }
  .tg-grid {
    gap: 1.1rem;
  }
  .tg-post-card {
    min-height: auto;
  }
  .tg-post-content {
    min-height: 280px;
  }
}

/* Ekstra küçük ekranlar (< 385px) */
@media (max-width: 384px) {
  html {
    width: 100%;
    height: 100%;
  }
  body {
    width: 100%;
    overflow-x: hidden;
  }
  section {
    width: 100%;
    padding: 3.5rem 0 2rem 0;
  }
  .container {
    width: 100%;
    padding: 0 1rem;
    box-sizing: border-box;
    margin: 0 auto;
  }
  header .container {
    height: 55px;
    padding: 0 0.75rem;
    width: 100%;
  }
  header.scrolled .container {
    height: 45px;
  }
  .logo {
    font-size: 1rem;
  }
  .nav-links {
    top: 55px;
    height: calc(100vh - 55px);
    padding-top: 2.5rem;
    gap: 2rem;
  }
  .menu-btn {
    width: 30px;
    height: 25px;
  }
  .menu-btn span {
    height: 2px;
  }
  .tg-featured {
    padding-top: 70px;
    padding-bottom: 30px;
    width: 100%;
  }
  .tg-header {
    margin-bottom: 1.5rem;
    width: 100%;
    padding: 0 0.75rem;
    box-sizing: border-box;
  }
  .tg-header .section-title {
    font-size: 1.5rem;
  }
  .tg-header .section-desc {
    font-size: 0.85rem;
  }
  .tg-grid {
    gap: 0.9rem;
    padding: 0;
    width: 100%;
    box-sizing: border-box;
  }
  .tg-post-card {
    min-height: auto;
    width: 100%;
  }
  .tg-post-header {
    padding: 0.85rem;
  }
  .tg-channel-avatar {
    width: 40px;
    height: 40px;
    font-size: 0.9rem;
  }
  .tg-channel-name h4 {
    font-size: 0.85rem;
  }
  .tg-post-content {
    padding: 0 8px 8px 0;
    min-height: 200px;
  }
}