:root {
  --crimson: #C0152A;
  --crimson-deep: #8B0016;
  --crimson-glow: #E8001F;
  --black: #050507;
  --black-soft: #0D0D10;
  --black-panel: #111114;
  --black-border: #1E1E23;
  --white: #F5F5F7;
  --white-dim: #9A9A9F;
  --white-faint: #3A3A40;

  /* Global tokens mapped to reference system */
  --bg: #050507;
  --glass: rgba(17, 17, 20, 0.82);
  --glass-strong: rgba(17, 17, 20, 0.94);
  --glass-hover: rgba(192, 21, 42, 0.08);
  --border: #1E1E23;
  --border-strong: rgba(192, 21, 42, 0.35);
  --text: #F5F5F7;
  --muted: #9A9A9F;
  --accent: #C0152A;
  --accent-2: #E8001F;
  --accent-glow: rgba(192, 21, 42, 0.28);
  --cyan-glow: rgba(232, 0, 31, 0.18);
  --gold: #fbbf24;
  --radius: 12px;
  --font: 'Barlow', 'Outfit', system-ui, sans-serif;
  --font-condensed: 'Barlow Condensed', sans-serif;
  --font-serif: 'Cormorant Garamond', serif;
  --mono: 'JetBrains Mono', monospace;
  --blur: blur(20px) saturate(140%);
  --shadow: 0 10px 28px rgba(0, 0, 0, 0.55);
}

*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

html { scroll-behavior: smooth; }

body {
  font-family: var(--font);
  background: var(--bg);
  color: var(--text);
  line-height: 1.6;
  min-height: 100vh;
  position: relative;
}

/* Background Layers & Atmospheric Cyber HUD */
.bg-layer {
  position: fixed;
  inset: 0;
  z-index: 0;
  pointer-events: none;
  overflow: hidden;
}

.bg-geo {
  position: absolute;
  inset: 0;
  background:
    radial-gradient(ellipse 70% 60% at 15% 50%, rgba(139, 0, 22, 0.22) 0%, transparent 70%),
    radial-gradient(ellipse 50% 70% at 90% 80%, rgba(192, 21, 42, 0.10) 0%, transparent 60%),
    radial-gradient(ellipse 30% 40% at 80% 10%, rgba(192, 21, 42, 0.08) 0%, transparent 60%);
}

.bg-grid {
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(192, 21, 42, 0.04) 1px, transparent 1px),
    linear-gradient(90deg, rgba(192, 21, 42, 0.04) 1px, transparent 1px);
  background-size: 60px 60px;
}

.bg-scanlines {
  position: absolute;
  inset: 0;
  background-image: repeating-linear-gradient(
    0deg,
    transparent,
    transparent 3px,
    rgba(0, 0, 0, 0.18) 3px,
    rgba(0, 0, 0, 0.18) 4px
  );
  animation: scanMove 8s linear infinite;
  opacity: 0.65;
}

@keyframes scanMove {
  from { background-position: 0 0; }
  to { background-position: 0 80px; }
}

.vert-accent {
  position: fixed;
  left: 0;
  top: 0;
  width: 3px;
  height: 100%;
  background: linear-gradient(
    to bottom,
    transparent 0%,
    var(--crimson-deep) 20%,
    var(--crimson) 50%,
    var(--crimson-deep) 80%,
    transparent 100%
  );
  animation: vertPulse 4s ease-in-out infinite;
  z-index: 99;
  pointer-events: none;
}

@keyframes vertPulse {
  0%, 100% { opacity: 0.45; }
  50% { opacity: 1; }
}

/* Corner HUD Tactical Reticles */
.corner {
  position: fixed;
  width: 44px;
  height: 44px;
  opacity: 0.4;
  z-index: 99;
  pointer-events: none;
  transition: opacity 0.3s;
}

.corner::before,
.corner::after {
  content: "";
  position: absolute;
  background: var(--crimson);
}

.corner::before {
  width: 2px;
  height: 100%;
}

.corner::after {
  width: 100%;
  height: 2px;
}

.corner-tl { top: 20px; left: 20px; }
.corner-tl::before { top: 0; left: 0; }
.corner-tl::after { top: 0; left: 0; }

.corner-tr { top: 20px; right: 20px; }
.corner-tr::before { top: 0; right: 0; }
.corner-tr::after { top: 0; right: 0; }

.corner-bl { bottom: 20px; left: 20px; }
.corner-bl::before { bottom: 0; left: 0; }
.corner-bl::after { bottom: 0; left: 0; }

.corner-br { bottom: 20px; right: 20px; }
.corner-br::before { bottom: 0; right: 0; }
.corner-br::after { bottom: 0; right: 0; }

@media (max-width: 640px) {
  .corner { width: 28px; height: 28px; }
  .corner-tl, .corner-tr { top: 12px; }
  .corner-bl, .corner-br { bottom: 12px; }
  .corner-tl, .corner-bl { left: 12px; }
  .corner-tr, .corner-br { right: 12px; }
  .vert-accent { width: 2px; }
}

.wrap {
  position: relative;
  z-index: 1;
  max-width: 1100px;
  margin: 0 auto;
  padding: 0.85rem 1.5rem 4rem;
}

nav {
  position: sticky;
  top: 0.75rem;
  z-index: 100;
  backdrop-filter: var(--blur);
  -webkit-backdrop-filter: var(--blur);
  background: rgba(13, 13, 16, 0.82);
  border: 1px solid var(--border);
  border-radius: 14px;
  box-shadow: var(--shadow), inset 0 1px 0 rgba(255, 255, 255, 0.05);
  padding: 0 1.15rem;
}

.nav-inner {
  max-width: 1100px;
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 64px;
}

.logo {
  display: inline-flex;
  align-items: center;
  gap: 0.55rem;
  text-decoration: none;
  color: var(--text);
  font-family: var(--mono);
  font-weight: 600;
  font-size: 0.95rem;
  letter-spacing: -0.02em;
}

.logo img {
  width: 36px;
  height: 36px;
  border-radius: 9px;
  display: block;
  transition: transform 0.25s, box-shadow 0.25s;
}

.logo:hover img {
  transform: scale(1.04);
  box-shadow: 0 0 14px var(--accent-glow);
}

.nav-links {
  display: flex;
  gap: 0.45rem;
  list-style: none;
}

.nav-links a {
  color: var(--muted);
  text-decoration: none;
  font-size: 0.9rem;
  font-weight: 500;
  padding: 0.4rem 0.75rem;
  border-radius: 8px;
  border: 1px solid transparent;
  transition: color 0.2s, background 0.2s, border-color 0.2s, box-shadow 0.2s;
}

.nav-links a:hover {
  color: var(--text);
  background: rgba(192, 21, 42, 0.08);
  border-color: rgba(192, 21, 42, 0.25);
  box-shadow: 0 0 12px rgba(192, 21, 42, 0.15);
}

.nav-toggle {
  display: none;
  position: relative;
  overflow: hidden;
  background: var(--glass);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border: 1px solid var(--border);
  color: var(--text);
  padding: 0.4rem 0.7rem;
  border-radius: 10px;
  cursor: pointer;
  font-size: 1.1rem;
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.1);
  transition: border-color 0.2s, box-shadow 0.2s;
}

.nav-toggle:hover {
  border-color: var(--border-strong);
  box-shadow: 0 0 10px var(--accent-glow);
}

.hero {
  padding: 5rem 0 3.5rem;
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 2rem;
  align-items: center;
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  background: rgba(192, 21, 42, 0.1);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  border: 1px solid rgba(192, 21, 42, 0.3);
  color: var(--crimson-glow);
  font-family: var(--font-condensed);
  font-size: 0.8rem;
  font-weight: 600;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  padding: 0.4rem 0.95rem;
  border-radius: 6px;
  margin-bottom: 1.25rem;
  box-shadow: 0 0 14px rgba(192, 21, 42, 0.12), inset 0 1px 0 rgba(255, 255, 255, 0.06);
}

.hero-badge::before {
  content: '';
  width: 7px;
  height: 7px;
  background: var(--crimson);
  border-radius: 50%;
  box-shadow: 0 0 8px var(--crimson-glow);
  animation: pulse 2s infinite;
}

@keyframes pulse {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.4; }
}

.hero h1 {
  font-size: clamp(2.4rem, 5vw, 3.5rem);
  font-weight: 700;
  letter-spacing: -0.03em;
  line-height: 1.1;
  margin-bottom: 0.75rem;
}

.hero h1 span {
  background: linear-gradient(135deg, #ffffff 10%, var(--crimson) 70%, var(--crimson-glow) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.hero-sub {
  font-size: 1.15rem;
  color: var(--muted);
  max-width: 540px;
  margin-bottom: 1.75rem;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
}

.btn {
  --shine: rgba(255, 255, 255, 0.2);
  position: relative;
  overflow: hidden;
  isolation: isolate;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  padding: 0.75rem 1.3rem;
  border-radius: 6px;
  font-size: 0.9rem;
  font-weight: 600;
  font-family: var(--font-condensed);
  letter-spacing: 0.08em;
  text-transform: uppercase;
  text-decoration: none;
  color: var(--text);
  border: 1px solid var(--border);
  background: var(--black-panel);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  box-shadow: var(--shadow);
  transition: transform 0.2s, box-shadow 0.25s, border-color 0.25s, background 0.25s;
}

.btn::before {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(
    120deg,
    transparent 30%,
    rgba(255, 255, 255, 0.18) 50%,
    transparent 70%
  );
  transform: translateX(-120%);
  transition: transform 0.65s ease;
  pointer-events: none;
  z-index: 1;
}

.btn:hover {
  transform: translateY(-1px);
  background: rgba(26, 26, 32, 0.9);
  border-color: rgba(192, 21, 42, 0.4);
  box-shadow:
    0 0 16px var(--accent-glow),
    0 8px 22px rgba(0, 0, 0, 0.4);
}

.btn:hover::before {
  transform: translateX(120%);
}

.btn:active {
  transform: scaleX(0.98);
}

.btn-primary {
  background: var(--crimson);
  border-color: rgba(232, 0, 31, 0.5);
  color: #fff;
  box-shadow:
    0 4px 18px rgba(192, 21, 42, 0.35),
    inset 0 1px 0 rgba(255, 255, 255, 0.18);
}

.btn-primary:hover {
  background: var(--crimson-deep);
  border-color: var(--crimson-glow);
  box-shadow:
    0 0 22px var(--accent-glow),
    0 8px 24px rgba(0, 0, 0, 0.45);
}

.btn-ghost {
  background: rgba(255, 255, 255, 0.03);
}

.btn-ghost:hover {
  border-color: rgba(192, 21, 42, 0.35);
  color: var(--white);
}

.hero-card,
.card,
.timeline-item,
.project-card {
  --shine: rgba(255, 255, 255, 0.1);
  position: relative;
  overflow: hidden;
  isolation: isolate;
  background: var(--black-panel);
  border: 1px solid var(--black-border);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  transition: border-color 0.3s, transform 0.3s, box-shadow 0.3s, background 0.3s;
}

.hero-card::before,
.card::before,
.timeline-item::before,
.project-card::before {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(
    115deg,
    transparent 18%,
    var(--shine) 50%,
    transparent 82%
  );
  transform: translateX(-130%);
  transition: transform 1.15s ease;
  pointer-events: none;
  z-index: 1;
}

.hero-card:hover,
.card:hover,
.timeline-item:hover,
.project-card:hover {
  border-color: rgba(192, 21, 42, 0.4);
  transform: translateY(-2px);
  background: rgba(20, 20, 25, 0.95);
  box-shadow:
    0 0 20px rgba(192, 21, 42, 0.16),
    0 12px 28px rgba(0, 0, 0, 0.5);
}

.hero-card:hover::before,
.card:hover::before,
.timeline-item:hover::before,
.project-card:hover::before {
  transform: translateX(130%);
}

.hero-card {
  padding: 1.5rem;
  min-width: 260px;
}

.hero-card h3 {
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--muted);
  margin-bottom: 1rem;
}

.stat-row {
  display: flex;
  justify-content: space-between;
  padding: 0.55rem 0;
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
  font-size: 0.9rem;
}

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

.stat-row strong {
  font-family: var(--mono);
  color: var(--accent-2);
}

section { margin-bottom: 4rem; }

section[id] { scroll-margin-top: 5.5rem; }

.section-label {
  font-family: var(--font-condensed);
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--crimson);
  text-transform: uppercase;
  letter-spacing: 0.25em;
  margin-bottom: 0.5rem;
}

.section-title {
  font-family: var(--font);
  font-size: 1.85rem;
  font-weight: 700;
  letter-spacing: -0.02em;
  margin-bottom: 1.5rem;
}

.about-grid {
  display: grid;
  grid-template-columns: 2fr 1fr;
  gap: 1.5rem;
}

.card {
  padding: 1.5rem;
}

.card p { color: var(--muted); }

.card-top-bar {
  width: 100%;
  height: 3px;
  background: linear-gradient(90deg, var(--crimson-deep), var(--crimson), var(--crimson-deep));
  position: relative;
}

.card-top-bar::after {
  content: "";
  position: absolute;
  inset: 0;
  background: inherit;
  filter: blur(6px);
  opacity: 0.7;
}

.contact-list { list-style: none; }

.contact-list li {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  padding: 0.6rem 0;
  border-bottom: 1px solid rgba(255, 255, 255, 0.05);
  font-size: 0.9rem;
}

.contact-list li:last-child { border-bottom: none; }

.contact-list a {
  color: var(--crimson-glow);
  text-decoration: none;
}

.contact-list a:hover { text-decoration: underline; }

.skills-cloud {
  display: flex;
  flex-wrap: wrap;
  gap: 0.6rem;
}

.skill-pill {
  background: var(--black-soft);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  border: 1px solid var(--black-border);
  padding: 0.45rem 0.9rem;
  border-radius: 6px;
  font-size: 0.85rem;
  font-family: var(--font-condensed);
  font-weight: 500;
  letter-spacing: 0.05em;
  color: var(--text);
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.04);
  transition: border-color 0.2s, background 0.2s, box-shadow 0.25s, transform 0.2s;
}

.skill-pill:hover {
  border-color: rgba(192, 21, 42, 0.45);
  background: rgba(192, 21, 42, 0.08);
  transform: translateY(-1px);
  box-shadow: 0 0 14px rgba(192, 21, 42, 0.2);
}

.skill-pill.top {
  border-color: rgba(192, 21, 42, 0.4);
  background: rgba(192, 21, 42, 0.12);
  color: var(--crimson-glow);
}

.timeline { display: flex; flex-direction: column; gap: 1rem; }

.timeline-item {
  padding: 1.25rem 1.5rem;
  border-left: 3px solid var(--crimson);
}

.timeline-item h3 {
  font-size: 1rem;
  margin-bottom: 0.25rem;
}

.timeline-item p {
  color: var(--muted);
  font-size: 0.9rem;
}

.projects-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
  gap: 1.25rem;
}

.project-card {
  padding: 1.5rem;
  display: flex;
  flex-direction: column;
}

.project-card:hover {
  transform: translateY(-3px);
}

.project-folder {
  font-family: var(--mono);
  font-size: 0.7rem;
  color: var(--crimson);
  margin-bottom: 0.5rem;
}

.project-card h3 {
  font-size: 1.1rem;
  margin-bottom: 0.6rem;
  line-height: 1.3;
}

.project-desc {
  color: var(--muted);
  font-size: 0.88rem;
  flex: 1;
  margin-bottom: 1rem;
}

.project-features {
  list-style: none;
  margin-bottom: 1rem;
}

.project-features li {
  font-size: 0.8rem;
  color: var(--muted);
  padding: 0.2rem 0 0.2rem 1rem;
  position: relative;
}

.project-features li::before {
  content: '→';
  position: absolute;
  left: 0;
  color: var(--crimson);
  font-size: 0.75rem;
}

.project-tech {
  display: flex;
  flex-wrap: wrap;
  gap: 0.4rem;
  margin-bottom: 1rem;
}

.project-tech span {
  font-family: var(--mono);
  font-size: 0.68rem;
  background: rgba(192, 21, 42, 0.08);
  border: 1px solid rgba(192, 21, 42, 0.2);
  padding: 0.2rem 0.5rem;
  border-radius: 4px;
  color: var(--crimson-glow);
}

.project-link {
  font-family: var(--font-condensed);
  font-size: 0.88rem;
  font-weight: 600;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--crimson);
  text-decoration: none;
  margin-top: auto;
  transition: color 0.2s, text-shadow 0.2s;
}

.project-link:hover {
  color: var(--crimson-glow);
  text-shadow: 0 0 10px var(--accent-glow);
}

footer {
  text-align: center;
  padding: 2rem 0;
  border-top: 1px solid var(--border);
  color: var(--muted);
  font-size: 0.85rem;
}

footer a { color: var(--accent-2); text-decoration: none; }

.readme-note {
  font-family: var(--mono);
  font-size: 0.72rem;
  color: var(--muted);
  text-align: center;
  margin-top: 1rem;
  opacity: 0.7;
}

@media (max-width: 768px) {
  nav { padding: 0 0.85rem; }

  .nav-links {
    display: none;
    position: absolute;
    top: calc(100% + 0.5rem);
    left: 0;
    right: 0;
    flex-direction: column;
    background: rgba(13, 13, 16, 0.95);
    backdrop-filter: var(--blur);
    -webkit-backdrop-filter: var(--blur);
    padding: 0.85rem;
    border: 1px solid var(--border);
    border-radius: 12px;
    box-shadow: var(--shadow);
    gap: 0.35rem;
  }

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

  .nav-toggle { display: block; }

  .hero {
    grid-template-columns: 1fr;
    padding-top: 3rem;
  }

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

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

@media print {
  nav, .hero-actions, .readme-note { display: none; }
  body { background: #fff; color: #111; }
  .card, .project-card, .timeline-item { border: 1px solid #ccc; break-inside: avoid; }
}

/* Blog ve Markdown içindeki blok kodlar için */
pre {
  background: rgba(15, 23, 42, 0.6) !important;
  border: 1px solid rgba(255, 255, 255, 0.1) !important;
  border-radius: 8px !important;
  padding: 1.25rem !important;
  overflow-x: auto !important;
  margin: 1.5rem 0 !important;
  line-height: 1.4 !important;
}

/* pre içindeki code etiketinin inline sınırlarını ve arka planını sıfırla */
pre code {
  background: transparent !important;
  border: none !important;
  padding: 0 !important;
  border-radius: 0 !important;
  font-family: 'JetBrains Mono', monospace !important;
  font-size: 0.85rem !important;
  color: #e2e8f0 !important;
  display: block !important;
  white-space: pre !important; /* Satır boşluklarını ve girintileri korur */
}