/* her şeyi sıfırla, tarayıcı varsayılanları bize göre değil
   bu kısım olmasa site chrome'da bir şey, firefox'ta başka bir şey görünürdü */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

:root {
  --bg: #09090f;
  --surface: #111118;
  --surface-2: #16161f;
  --border: rgba(255,255,255,0.08);
  --border-hover: rgba(255,255,255,0.16);
  --text: #f0f0f8;
  --text-muted: #8b8b9e;
  --text-faint: #5a5a6e;
  --accent: #6c63ff;
  --accent-2: #a78bfa;
  --accent-3: #38bdf8;
  --glow: rgba(108,99,255,0.35);
  --glow-sm: rgba(108,99,255,0.15);
  --radius: 14px;
  --radius-sm: 8px;
  --radius-xs: 5px;
  --transition: 0.25s cubic-bezier(0.4, 0, 0.2, 1);
  --font: 'Inter', system-ui, sans-serif;
  --mono: 'JetBrains Mono', monospace;
}

html { scroll-behavior: smooth; }

body {
  font-family: var(--font);
  background: var(--bg);
  color: var(--text);
  overflow-x: hidden;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

a { color: inherit; text-decoration: none; }
img { max-width: 100%; display: block; }

/* arka plan için hover eden mor-mavi toplar
   görsel olarak çok şık duruyor, performans etkilemiyor, tavsiye ederim */
.bg-orb {
  position: fixed;
  border-radius: 50%;
  filter: blur(100px);
  opacity: 0.25;
  pointer-events: none;
  z-index: 0;
}
.orb-1 { width: 600px; height: 600px; background: radial-gradient(circle, #6c63ff, transparent); top: -200px; left: -200px; animation: drift1 12s ease-in-out infinite alternate; }
.orb-2 { width: 400px; height: 400px; background: radial-gradient(circle, #38bdf8, transparent); top: 40%; right: -100px; animation: drift2 15s ease-in-out infinite alternate; }
.orb-3 { width: 350px; height: 350px; background: radial-gradient(circle, #a78bfa, transparent); bottom: 10%; left: 30%; animation: drift3 18s ease-in-out infinite alternate; }
@keyframes drift1 { from { transform: translate(0,0); } to { transform: translate(40px, 60px); } }
@keyframes drift2 { from { transform: translate(0,0); } to { transform: translate(-50px, 30px); } }
@keyframes drift3 { from { transform: translate(0,0); } to { transform: translate(30px, -40px); } }

/* navbar - sayfanın en üstünde sabit duruyor, scroll edince biraz belirginleşiyor
   glassmorphism efekti verince çok güzel çıktı, uğraşmaya değdi */
.navbar {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 100;
  padding: 0 2rem;
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  background: rgba(9,9,15,0.7);
  border-bottom: 1px solid transparent;
  transition: border-color var(--transition);
}
.navbar.scrolled { border-bottom-color: var(--border); }
.nav-inner {
  max-width: 1200px;
  margin: 0 auto;
  height: 68px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}
.nav-logo {
  font-size: 1.5rem;
  font-weight: 800;
  letter-spacing: -0.5px;
  color: var(--text);
}
.nav-logo .dot { color: var(--accent); }
.nav-links {
  display: flex;
  align-items: center;
  gap: 0.25rem;
  list-style: none;
}
.nav-link {
  padding: 0.4rem 0.85rem;
  border-radius: 99px;
  font-size: 0.875rem;
  font-weight: 500;
  color: var(--text-muted);
  transition: all var(--transition);
}
.nav-link:hover { color: var(--text); background: var(--surface-2); }
.nav-link.contact-btn {
  background: var(--accent);
  color: #fff;
  padding: 0.4rem 1rem;
}
.nav-link.contact-btn:hover { background: #5651e5; color: #fff; }
.hamburger {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 4px;
}
.hamburger span { display: block; width: 24px; height: 2px; background: var(--text); border-radius: 2px; transition: all var(--transition); }

/* mobil menü - hamburger'a basılınca açılıyor
   küçük ekranlarda nav-links gizlenip bunu gösteriyoruz */
.mobile-menu {
  position: fixed;
  top: 68px; left: 0; right: 0;
  z-index: 99;
  background: rgba(9,9,15,0.97);
  backdrop-filter: blur(20px);
  border-bottom: 1px solid var(--border);
  padding: 1rem;
  display: none;
  flex-direction: column;
}
.mobile-menu.open { display: flex; }
.mobile-menu ul { list-style: none; display: flex; flex-direction: column; gap: 0.25rem; }
.mob-link { display: block; padding: 0.75rem 1rem; border-radius: var(--radius-sm); color: var(--text-muted); font-weight: 500; transition: all var(--transition); }
.mob-link:hover { color: var(--text); background: var(--surface-2); }

/* genel layout araçları - container, section, başlıklar
   her sayfa bölümünde bunları kullanıyoruz, ortak şeyler buraya */
.container { max-width: 1200px; margin: 0 auto; padding: 0 2rem; position: relative; z-index: 1; }
.section { padding: 100px 0; position: relative; }
.section-dark { background: var(--surface); }
.section-header { text-align: center; margin-bottom: 3rem; }
.section-tag {
  display: inline-block;
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--accent);
  background: var(--glow-sm);
  border: 1px solid rgba(108,99,255,0.3);
  padding: 0.3rem 0.85rem;
  border-radius: 99px;
  margin-bottom: 0.75rem;
}
.section-title { font-size: clamp(2rem, 4vw, 2.75rem); font-weight: 800; letter-spacing: -0.03em; }

/* hero bölümü - ilk izlenim her şeydir
   büyük isim, kod kartı, yüzen chip'ler... biraz gösteriş yaptık, kabul */
.hero {
  min-height: 100vh;
  display: flex;
  align-items: center;
  padding: 120px 2rem 60px;
  max-width: 1200px;
  margin: 0 auto;
  gap: 4rem;
  position: relative;
  z-index: 1;
}
.hero-content { flex: 1; }
.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--text-muted);
  background: var(--surface-2);
  border: 1px solid var(--border);
  padding: 0.4rem 0.9rem;
  border-radius: 99px;
  margin-bottom: 1.5rem;
}
.badge-dot { width: 8px; height: 8px; border-radius: 50%; background: #22c55e; box-shadow: 0 0 8px #22c55e; animation: pulse-dot 2s ease-in-out infinite; }
@keyframes pulse-dot { 0%,100% { opacity: 1; } 50% { opacity: 0.5; } }
.hero-title {
  font-size: clamp(3.5rem, 8vw, 6rem);
  font-weight: 900;
  letter-spacing: -0.04em;
  line-height: 1;
  margin-bottom: 1rem;
}
.gradient-text {
  background: linear-gradient(135deg, var(--accent) 0%, var(--accent-2) 50%, var(--accent-3) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}
.hero-subtitle {
  font-size: 1.1rem;
  font-weight: 500;
  color: var(--text-muted);
  margin-bottom: 1.25rem;
}
.sep { margin: 0 0.4rem; color: var(--text-faint); }
.hero-desc {
  font-size: 1rem;
  color: var(--text-muted);
  max-width: 540px;
  line-height: 1.8;
  margin-bottom: 2rem;
}
.hero-actions { display: flex; gap: 1rem; flex-wrap: wrap; margin-bottom: 2.5rem; }
.btn-primary {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.75rem 1.75rem;
  background: var(--accent);
  color: #fff;
  font-weight: 600;
  font-size: 0.95rem;
  border-radius: 99px;
  border: none;
  cursor: pointer;
  transition: all var(--transition);
  box-shadow: 0 0 30px var(--glow);
}
.btn-primary:hover { background: #5651e5; transform: translateY(-2px); box-shadow: 0 0 40px var(--glow); }
.btn-ghost {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.75rem 1.75rem;
  background: transparent;
  color: var(--text);
  font-weight: 600;
  font-size: 0.95rem;
  border-radius: 99px;
  border: 1px solid var(--border);
  cursor: pointer;
  transition: all var(--transition);
}
.btn-ghost:hover { border-color: var(--border-hover); background: var(--surface-2); transform: translateY(-2px); }
.w-full { width: 100%; justify-content: center; border-radius: var(--radius-sm); }
.hero-stats {
  display: flex;
  gap: 1.5rem;
  align-items: center;
}
.stat { text-align: center; }
.stat-number { display: block; font-size: 1.75rem; font-weight: 800; letter-spacing: -0.03em; }
.stat-label { font-size: 0.75rem; color: var(--text-muted); text-transform: uppercase; letter-spacing: 0.05em; }
.stat-divider { width: 1px; height: 40px; background: var(--border); }

/* hero'nun sağ tarafındaki kod kartı ve yüzen rozet'ler
   animate-float ile hafifçe sallanıyor, çok güzel duruyor */
.hero-visual { flex: 1; position: relative; display: flex; justify-content: center; align-items: center; min-height: 380px; }
.code-card {
  width: 100%;
  max-width: 420px;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
  box-shadow: 0 0 60px rgba(108,99,255,0.12), 0 25px 50px rgba(0,0,0,0.5);
  animation: float 6s ease-in-out infinite;
}
@keyframes float { 0%,100% { transform: translateY(0); } 50% { transform: translateY(-12px); } }
.code-header {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.75rem 1rem;
  background: var(--surface-2);
  border-bottom: 1px solid var(--border);
}
.dot.red { width: 12px; height: 12px; border-radius: 50%; background: #ff5f57; }
.dot.yellow { width: 12px; height: 12px; border-radius: 50%; background: #ffbd2e; }
.dot.green { width: 12px; height: 12px; border-radius: 50%; background: #28c840; }
.code-title { font-size: 0.75rem; color: var(--text-faint); font-family: var(--mono); margin-left: 0.25rem; }
.code-body { padding: 1.25rem; }
.code-body pre { font-family: var(--mono); font-size: 0.8rem; line-height: 1.9; color: var(--text-muted); }
.kw { color: #c792ea; }
.var { color: #82aaff; }
.key { color: #f78c6c; }
.str { color: #c3e88d; }

/* Floating chips */
.floating-chip {
  position: absolute;
  display: flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.5rem 1rem;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 99px;
  font-size: 0.78rem;
  font-weight: 600;
  color: var(--text-muted);
  box-shadow: 0 8px 30px rgba(0,0,0,0.4);
}
.floating-chip svg { width: 14px; height: 14px; }
.chip-1 { top: 0; right: 0; animation: float2 7s ease-in-out infinite; color: #a78bfa; border-color: rgba(167,139,250,0.3); }
.chip-2 { bottom: 20%; left: -5%; animation: float2 8s ease-in-out infinite 1s; color: #38bdf8; border-color: rgba(56,189,248,0.3); }
.chip-3 { bottom: 5%; right: 10%; animation: float2 9s ease-in-out infinite 0.5s; color: #4ade80; border-color: rgba(74,222,128,0.3); }
@keyframes float2 { 0%,100% { transform: translateY(0) rotate(-1deg); } 50% { transform: translateY(-10px) rotate(1deg); } }

/* hakkımda bölümü - kim olduğumu anlattığım yer
   sol metin, sağ mini kartlar. grid ile hallettik */
.about-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 4rem; align-items: start; }
.about-text p { color: var(--text-muted); line-height: 1.8; margin-bottom: 1rem; font-size: 0.975rem; }
.about-text p strong { color: var(--text); font-weight: 600; }
.about-info { display: flex; flex-direction: column; gap: 0.75rem; margin-top: 1.75rem; }
.info-item {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  font-size: 0.875rem;
  color: var(--text-muted);
}
.info-item svg { width: 16px; height: 16px; flex-shrink: 0; color: var(--accent); }
.info-item a { color: var(--accent-2); }
.info-item a:hover { text-decoration: underline; }
.about-cards { display: grid; grid-template-columns: 1fr 1fr; gap: 1rem; }
.mini-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1.25rem;
  transition: all var(--transition);
}
.mini-card:hover { border-color: var(--border-hover); transform: translateY(-3px); box-shadow: 0 12px 30px rgba(0,0,0,0.3); }
.mini-card-icon {
  width: 40px; height: 40px;
  border-radius: var(--radius-sm);
  background: var(--glow-sm);
  border: 1px solid rgba(108,99,255,0.25);
  display: flex; align-items: center; justify-content: center;
  margin-bottom: 0.75rem;
}
.mini-card-icon svg { width: 20px; height: 20px; color: var(--accent); }
.mini-card h3 { font-size: 0.9rem; font-weight: 700; margin-bottom: 0.4rem; }
.mini-card p { font-size: 0.8rem; color: var(--text-muted); line-height: 1.6; }

/* timeline - kariyer geçmişi dikey çizgi ile gösteriliyor
   mevcut işi dolu nokta ile belirtiyoruz, şık */
.timeline { position: relative; padding-left: 2rem; }
.timeline::before {
  content: '';
  position: absolute;
  left: 7px; top: 0; bottom: 0;
  width: 2px;
  background: linear-gradient(to bottom, var(--accent), transparent);
}
.timeline-item {
  position: relative;
  padding-left: 2.5rem;
  margin-bottom: 2.5rem;
}
.timeline-dot {
  position: absolute;
  left: -17px;
  top: 6px;
  width: 14px; height: 14px;
  border-radius: 50%;
  border: 2px solid var(--accent);
  background: var(--bg);
  transition: all var(--transition);
}
.timeline-dot.active { background: var(--accent); box-shadow: 0 0 12px var(--glow); }
.timeline-content {
  background: var(--surface-2);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1.5rem;
  transition: all var(--transition);
}
.timeline-content:hover { border-color: var(--border-hover); transform: translateX(4px); }
.exp-header {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  gap: 1rem;
  margin-bottom: 0.75rem;
  flex-wrap: wrap;
}
.exp-title { font-size: 1rem; font-weight: 700; margin-bottom: 0.2rem; }
.exp-company { font-size: 0.82rem; color: var(--accent-2); font-weight: 500; }
.exp-date {
  font-size: 0.78rem;
  color: var(--text-faint);
  font-family: var(--mono);
  white-space: nowrap;
  padding: 0.25rem 0.6rem;
  background: var(--surface);
  border-radius: var(--radius-xs);
  border: 1px solid var(--border);
}
.exp-desc { font-size: 0.875rem; color: var(--text-muted); line-height: 1.7; margin-bottom: 1rem; }
.exp-tags { display: flex; flex-wrap: wrap; gap: 0.4rem; }
.exp-tags span {
  font-size: 0.73rem;
  font-weight: 600;
  padding: 0.2rem 0.6rem;
  background: var(--glow-sm);
  border: 1px solid rgba(108,99,255,0.25);
  border-radius: 99px;
  color: var(--accent-2);
}

/* yetenekler bölümü - animate eden bar'lar scroll edilince devreye giriyor
   intersection observer hallediyor bunu, JS'e bak */
.skills-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 1.5rem; }
.skill-category {
  background: var(--surface-2);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1.5rem;
  transition: border-color var(--transition);
}
.skill-category:hover { border-color: var(--border-hover); }
.skill-cat-title {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-size: 0.9rem;
  font-weight: 700;
  margin-bottom: 1.25rem;
  color: var(--text);
}
.skill-cat-title svg { width: 18px; height: 18px; color: var(--accent); }
.skill-list { display: flex; flex-direction: column; gap: 0.75rem; }
.skill-item { display: flex; flex-direction: column; gap: 0.3rem; }
.skill-name { font-size: 0.8rem; font-weight: 500; color: var(--text-muted); }
.skill-bar { height: 5px; background: var(--surface); border-radius: 99px; overflow: hidden; }
.skill-fill {
  height: 100%;
  border-radius: 99px;
  background: linear-gradient(90deg, var(--accent), var(--accent-2));
  width: 0;
  transition: width 1.2s cubic-bezier(0.4, 0, 0.2, 1);
}
.skill-fill.animate { width: var(--w); }

/* proje kartları - grid layout, 3 kolon
   featured olanlar biraz farklı görünüyor, mor vurgu */
.projects-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 1.25rem; }
.project-card {
  background: var(--surface-2);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1.5rem;
  position: relative;
  transition: all var(--transition);
}
.project-card:hover { border-color: var(--border-hover); transform: translateY(-4px); box-shadow: 0 20px 50px rgba(0,0,0,0.4); }
.project-card.featured { grid-column: span 1; border-color: rgba(108,99,255,0.35); background: linear-gradient(135deg, var(--surface-2), rgba(108,99,255,0.05)); }
.project-badge {
  position: absolute;
  top: 1rem; right: 1rem;
  font-size: 0.68rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--accent);
  background: var(--glow-sm);
  border: 1px solid rgba(108,99,255,0.3);
  padding: 0.2rem 0.55rem;
  border-radius: 99px;
}
.project-icon {
  width: 44px; height: 44px;
  border-radius: var(--radius-sm);
  background: var(--glow-sm);
  border: 1px solid rgba(108,99,255,0.25);
  display: flex; align-items: center; justify-content: center;
  margin-bottom: 1rem;
}
.project-icon svg { width: 22px; height: 22px; color: var(--accent); }
.project-card h3 { font-size: 0.95rem; font-weight: 700; margin-bottom: 0.5rem; }
.project-card p { font-size: 0.82rem; color: var(--text-muted); line-height: 1.65; margin-bottom: 1rem; }
.project-ul {
  list-style: none;
  margin: 0.5rem 0 1rem;
  display: flex;
  flex-direction: column;
  gap: 0.3rem;
}
.project-ul li { font-size: 0.8rem; color: var(--text-muted); }
.project-tags { display: flex; flex-wrap: wrap; gap: 0.35rem; margin-bottom: 1rem; }
.project-tags span {
  font-size: 0.7rem; font-weight: 600;
  padding: 0.15rem 0.55rem;
  background: var(--surface);
  border-radius: 99px;
  border: 1px solid var(--border);
  color: var(--text-muted);
}
.project-link {
  font-size: 0.8rem;
  color: var(--accent-2);
  font-weight: 600;
  transition: color var(--transition);
}
.project-link:hover { color: var(--accent); }

/* medya varlıkları - instagram, youtube, linkedin linkleri
   bu bölüm medya direktörlüğü geçmişini gösteriyor */
.media-intro { text-align: center; color: var(--text-muted); margin-bottom: 2.5rem; font-size: 0.95rem; }
.media-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 1.5rem; }
.media-group {
  background: var(--surface-2);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1.5rem;
  transition: all var(--transition);
}
.media-group:hover { border-color: var(--border-hover); }
.media-group-icon {
  width: 48px; height: 48px;
  border-radius: var(--radius-sm);
  display: flex; align-items: center; justify-content: center;
  margin-bottom: 1rem;
}
.media-group-icon svg { width: 24px; height: 24px; }
.media-group-icon.ig { background: linear-gradient(135deg, rgba(225,48,108,0.15), rgba(193,53,132,0.1)); border: 1px solid rgba(225,48,108,0.3); color: #e1306c; }
.media-group-icon.yt { background: rgba(255,0,0,0.1); border: 1px solid rgba(255,0,0,0.25); color: #ff0000; }
.media-group-icon.li { background: rgba(0,119,181,0.1); border: 1px solid rgba(0,119,181,0.25); color: #0077b5; }
.media-group h3 { font-size: 0.95rem; font-weight: 700; margin-bottom: 0.875rem; }
.media-links { display: flex; flex-direction: column; gap: 0.5rem; }
.media-link {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-size: 0.8rem;
  color: var(--text-muted);
  padding: 0.4rem 0.6rem;
  border-radius: var(--radius-xs);
  transition: all var(--transition);
}
.media-link:hover { color: var(--text); background: var(--surface); }
.badge-active, .badge-personal {
  font-size: 0.65rem;
  font-weight: 700;
  padding: 0.15rem 0.45rem;
  border-radius: 99px;
}
.badge-active { background: rgba(34,197,94,0.12); border: 1px solid rgba(34,197,94,0.3); color: #22c55e; }
.badge-personal { background: rgba(56,189,248,0.1); border: 1px solid rgba(56,189,248,0.25); color: #38bdf8; }
.video-previews { display: flex; flex-direction: column; gap: 0.4rem; margin-top: 0.75rem; }
.video-thumb {
  display: block;
  font-size: 0.78rem;
  color: var(--text-faint);
  padding: 0.35rem 0.6rem;
  border-radius: var(--radius-xs);
  transition: all var(--transition);
}
.video-thumb:hover { color: #ff0000; background: rgba(255,0,0,0.06); }

/* iletişim bölümü - sol info kartları, sağ form
   form şu an sadece frontend simülasyonu yapıyor, ileride backend eklenecek */
.contact-section { overflow: hidden; }
.contact-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 4rem; align-items: start; }
.contact-desc { color: var(--text-muted); font-size: 0.975rem; line-height: 1.8; margin-bottom: 2rem; }
.contact-items { display: flex; flex-direction: column; gap: 0.75rem; }
.contact-item {
  display: flex;
  align-items: center;
  gap: 1rem;
  padding: 1rem;
  background: var(--surface-2);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  transition: all var(--transition);
}
.contact-item:hover { border-color: var(--border-hover); transform: translateX(4px); }
.contact-item-icon {
  width: 40px; height: 40px; flex-shrink: 0;
  border-radius: var(--radius-xs);
  background: var(--glow-sm);
  border: 1px solid rgba(108,99,255,0.25);
  display: flex; align-items: center; justify-content: center;
}
.contact-item-icon svg { width: 18px; height: 18px; color: var(--accent); }
.contact-label { display: block; font-size: 0.7rem; color: var(--text-faint); font-weight: 600; text-transform: uppercase; letter-spacing: 0.07em; }
.contact-value { display: block; font-size: 0.875rem; color: var(--text); font-weight: 500; }

/* iletişim formu stilleri - focus durumunda mor glowing efekti var */
.contact-form { display: flex; flex-direction: column; gap: 1rem; }
.form-group { display: flex; flex-direction: column; gap: 0.4rem; }
.form-group label { font-size: 0.8rem; font-weight: 600; color: var(--text-muted); }
.form-group input, .form-group textarea {
  background: var(--surface-2);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  padding: 0.75rem 1rem;
  color: var(--text);
  font-family: var(--font);
  font-size: 0.875rem;
  transition: border-color var(--transition);
  outline: none;
  width: 100%;
  resize: vertical;
}
.form-group input::placeholder, .form-group textarea::placeholder { color: var(--text-faint); }
.form-group input:focus, .form-group textarea:focus { border-color: var(--accent); box-shadow: 0 0 0 3px var(--glow-sm); }
.form-success {
  display: none;
  color: #22c55e;
  font-size: 0.875rem;
  font-weight: 500;
  text-align: center;
  padding: 0.75rem;
  background: rgba(34,197,94,0.08);
  border: 1px solid rgba(34,197,94,0.25);
  border-radius: var(--radius-sm);
}

/* footer - sade tutmak istedim, fazla karmaşık site sonu olmasın */
.footer {
  background: var(--surface-2);
  border-top: 1px solid var(--border);
  padding: 1.5rem 2rem;
}
.footer-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 1rem;
}
.footer-left { display: flex; align-items: center; gap: 1.5rem; }
.footer-logo { font-size: 1.25rem; font-weight: 800; }
.footer-logo .dot { color: var(--accent); }
.footer-copy { font-size: 0.8rem; color: var(--text-faint); }
.footer-links { display: flex; gap: 1.25rem; }
.footer-links a { font-size: 0.8rem; color: var(--text-muted); transition: color var(--transition); }
.footer-links a:hover { color: var(--text); }

/* responsive - tabletten telefona her şeyi tek kolon'a indiriyoruz
   820px breakpoint'i özellikle hero için kritik */
@media (max-width: 1024px) {
  .projects-grid { grid-template-columns: repeat(2, 1fr); }
  .project-card.featured { grid-column: span 1; }
  .media-grid { grid-template-columns: 1fr 1fr; }
}

@media (max-width: 820px) {
  .hero { flex-direction: column; gap: 2rem; text-align: center; padding-top: 100px; }
  .hero-desc { margin: 0 auto 2rem; }
  .hero-actions { justify-content: center; }
  .hero-stats { justify-content: center; }
  .hero-visual { width: 100%; }
  .about-grid { grid-template-columns: 1fr; }
  .about-cards { grid-template-columns: 1fr 1fr; }
  .skills-grid { grid-template-columns: 1fr; }
  .contact-grid { grid-template-columns: 1fr; }
  .media-grid { grid-template-columns: 1fr; }
  .projects-grid { grid-template-columns: 1fr 1fr; }
}

@media (max-width: 640px) {
  .nav-links { display: none; }
  .hamburger { display: flex; }
  .projects-grid { grid-template-columns: 1fr; }
  .about-cards { grid-template-columns: 1fr; }
  .timeline { padding-left: 1rem; }
  .section { padding: 70px 0; }
  .hero-title { font-size: 3rem; }
  .footer-inner { flex-direction: column; text-align: center; }
}