/* Dark Developer Palette - Deep Violet & Pink Neon (Default) */
:root {
  --bg-dark: #08070d;
  --bg-primary: #0e0d17;
  --bg-secondary: #131221;
  --bg-card: #19172c;
  --bg-nav: rgba(14, 13, 23, 0.82);
  --bg-pill: rgba(19, 18, 33, 0.9);
  --bg-pill-hover: rgba(25, 23, 44, 0.98);
  --bg-window-header: #11101d;
  --bg-profile-info: #090812;
  --bg-footer: #06050a;

  --text-main: #f1f2f6;
  --text-bio: #a7abbd;
  --text-muted: #8b8ea8;
  --text-tag: #fce7f3;
  --text-footer-center: #64677d;
  --info-val-color: #f472b6;

  --border-color: #26243f;
  --divider-color: rgba(38, 36, 63, 0.5);

  /* Temanın Ana Renkleri */
  --accent-purple: #8b5cf6;
  --accent-pink: #ec4899;
  --accent-pink-dim: rgba(236, 72, 153, 0.15);
  --accent-cyan: #38bdf8;
  --accent-glow: rgba(236, 72, 153, 0.25);

  --shadow-nav: 0 12px 35px rgba(0, 0, 0, 0.55);
  --shadow-window: 0 20px 45px rgba(0, 0, 0, 0.6);
  --shadow-pill: 0 8px 30px rgba(0, 0, 0, 0.7);

  --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
  --font-mono: 'Fira Code', monospace;
  --transition: all 0.25s ease-in-out;
}

/* Light Mode Palette - Dusty Pastel Pink & Soft Mauve */
body.light-mode {
  --bg-dark: #faf1f5;
  --bg-primary: #f3e4ec;
  --bg-secondary: #f7ebf1;
  --bg-card: #fdf8fa;
  --bg-nav: rgba(253, 246, 249, 0.86);
  --bg-pill: rgba(253, 246, 249, 0.94);
  --bg-pill-hover: #fff9fc;
  --bg-window-header: #eddbe5;
  --bg-profile-info: #f5e8ef;
  --bg-footer: #efe0e8;

  --text-main: #3d2838;
  --text-bio: #593e52;
  --text-muted: #6e5266;
  --text-tag: #8a2c5a;
  --text-footer-center: #7d6275;
  --info-val-color: #b8336a;

  --border-color: #e2c8d7;
  --divider-color: rgba(210, 175, 195, 0.55);

  --accent-purple: #7c3aed;
  --accent-pink: #cc3b7b;
  --accent-pink-dim: rgba(204, 59, 123, 0.12);
  --accent-cyan: #7e3f8f;
  --accent-glow: rgba(204, 59, 123, 0.2);

  --shadow-nav: 0 10px 28px rgba(120, 65, 95, 0.1);
  --shadow-window: 0 16px 36px rgba(120, 65, 95, 0.12);
  --shadow-pill: 0 8px 24px rgba(120, 65, 95, 0.14);
}

* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
  scroll-behavior: smooth;
}

body {
  background-color: var(--bg-dark);
  color: var(--text-main);
  font-family: var(--font-sans);
  line-height: 1.6;
  overflow-x: hidden;
  background-image: 
    radial-gradient(circle at 15% 15%, rgba(139, 92, 246, 0.1) 0%, transparent 40%),
    radial-gradient(circle at 85% 35%, rgba(236, 72, 153, 0.09) 0%, transparent 45%);
  background-attachment: fixed;
  transition: background-color 0.3s ease, color 0.3s ease;
}

.container {
  max-width: 1140px;
  margin: 0 auto;
  padding: 0 24px;
}

/* Floating Status Pill on Right with Pink Heart */
.floating-status-pill {
  position: fixed;
  right: 20px;
  top: 50%;
  transform: translateY(-50%);
  background-color: var(--bg-pill);
  color: var(--text-main);
  padding: 10px 18px;
  border-radius: 50px;
  border: 1px solid rgba(236, 72, 153, 0.4);
  box-shadow: var(--shadow-pill);
  display: flex;
  align-items: center;
  gap: 10px;
  text-decoration: none;
  font-size: 0.82rem;
  font-weight: 500;
  z-index: 9999;
  backdrop-filter: blur(10px);
  transition: var(--transition);
}

.floating-status-pill:hover {
  transform: translateY(-50%) scale(1.04);
  border-color: var(--accent-pink);
  background-color: var(--bg-pill-hover);
}

.beating-heart {
  color: var(--accent-pink);
  font-size: 0.9rem;
  animation: heartBeat 1.4s infinite;
}

.mini-heart {
  color: var(--accent-pink);
  font-size: 0.8rem;
  animation: heartBeat 1.4s infinite;
}

@keyframes heartBeat {
  0% { transform: scale(1); }
  14% { transform: scale(1.25); }
  28% { transform: scale(1); }
  42% { transform: scale(1.25); }
  70% { transform: scale(1); }
}

/* Floating Navbar */
.navbar {
  position: sticky;
  top: 18px;
  z-index: 1000;
  max-width: 1080px;
  width: calc(100% - 48px);
  margin: 18px auto 0;
  background-color: var(--bg-nav);
  backdrop-filter: blur(16px);
  border: 1px solid var(--border-color);
  border-radius: 18px;
  box-shadow: var(--shadow-nav);
  transition: var(--transition);
}

.nav-container {
  padding: 10px 24px;
  display: grid;
  grid-template-columns: 1fr auto 1fr;
  align-items: center;
}

.nav-logo {
  display: inline-flex;
  align-items: center;
  justify-self: start;
  text-decoration: none;
  flex-shrink: 0;
}

.nav-logo-img {
  height: 62px;
  width: auto;
  border-radius: 10px;
  object-fit: contain;
  transition: var(--transition);
}

.nav-logo-img:hover {
  transform: scale(1.08);
}

.nav-links {
  list-style: none;
  display: flex;
  gap: 32px;
  align-items: center;
  justify-self: center;
}

.nav-links a {
  text-decoration: none;
  font-family: var(--font-mono);
  color: var(--text-muted);
  font-size: 0.92rem;
  transition: var(--transition);
  white-space: nowrap;
}

.nav-links a:hover {
  color: var(--accent-pink);
}

.nav-actions {
  justify-self: end;
  display: flex;
  align-items: center;
  gap: 14px;
  flex-shrink: 0;
}

.nav-btn {
  text-decoration: none;
  font-family: var(--font-mono);
  font-size: 0.9rem;
  color: var(--text-main);
  padding: 8px 18px;
  border: 1px solid rgba(236, 72, 153, 0.35);
  border-radius: 10px;
  background: var(--accent-pink-dim);
  transition: var(--transition);
  white-space: nowrap;
}

.nav-btn:hover {
  background: var(--accent-pink);
  color: #fff;
  border-color: var(--accent-pink);
  box-shadow: 0 4px 16px var(--accent-glow);
}

/* Theme Toggle Switch */
.theme-switch {
  position: relative;
  width: 60px;
  height: 32px;
  border-radius: 30px;
  background: var(--bg-secondary);
  border: 1px solid var(--border-color);
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 8px;
  transition: var(--transition);
  flex-shrink: 0;
}

.theme-switch:hover {
  border-color: var(--accent-pink);
}

.theme-switch i {
  font-size: 0.78rem;
  z-index: 1;
  transition: var(--transition);
  pointer-events: none;
}

.theme-switch .moon-icon {
  color: var(--accent-pink);
}

.theme-switch .sun-icon {
  color: var(--text-muted);
}

body.light-mode .theme-switch .moon-icon {
  color: var(--text-muted);
}

body.light-mode .theme-switch .sun-icon {
  color: var(--accent-pink);
}

.switch-thumb {
  position: absolute;
  top: 3px;
  left: 3px;
  width: 24px;
  height: 24px;
  border-radius: 50%;
  background: var(--accent-pink-dim);
  border: 1px solid var(--accent-pink);
  transition: transform 0.28s cubic-bezier(0.4, 0, 0.2, 1);
  pointer-events: none;
}

body.light-mode .switch-thumb {
  transform: translateX(28px);
}

/* Hero Section */
.hero-section {
  padding: 70px 24px 90px;
  min-height: 82vh;
  display: flex;
  align-items: center;
}

.hero-container {
  max-width: 1140px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: 1.2fr 0.8fr;
  align-items: center;
  gap: 60px;
  width: 100%;
}

.terminal-tag {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-family: var(--font-mono);
  color: var(--accent-pink);
  font-size: 0.85rem;
  background: var(--accent-pink-dim);
  padding: 5px 12px;
  border-radius: 6px;
  margin-bottom: 20px;
  border: 1px solid rgba(236, 72, 153, 0.3);
}

.code-title {
  font-family: var(--font-mono);
  font-size: 3.4rem;
  line-height: 1.2;
  margin-bottom: 14px;
}

.code-title .string {
  color: var(--accent-pink);
}

.code-comment {
  font-family: var(--font-mono);
  color: var(--text-muted);
  font-size: 0.95rem;
  margin-bottom: 20px;
}

.hero-text .bio {
  color: var(--text-bio);
  font-size: 1.05rem;
  line-height: 1.7;
  margin-bottom: 34px;
  max-width: 540px;
}

.hero-actions {
  display: flex;
  gap: 16px;
  margin-bottom: 30px;
}

.btn {
  font-family: var(--font-mono);
  padding: 12px 24px;
  border-radius: 8px;
  text-decoration: none;
  font-size: 0.9rem;
  font-weight: 500;
  transition: var(--transition);
  display: inline-flex;
  align-items: center;
  gap: 8px;
}

.btn-primary {
  background: linear-gradient(135deg, var(--accent-pink) 0%, #db2777 100%);
  color: #fff;
  box-shadow: 0 4px 20px var(--accent-glow);
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 6px 24px rgba(236, 72, 153, 0.45);
}

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

.btn-secondary:hover {
  border-color: var(--accent-pink);
  transform: translateY(-2px);
}

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

.hero-socials a {
  width: 42px;
  height: 42px;
  border-radius: 8px;
  background-color: var(--bg-secondary);
  border: 1px solid var(--border-color);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--text-muted);
  text-decoration: none;
  transition: var(--transition);
}

.hero-socials a:hover {
  color: var(--accent-pink);
  border-color: var(--accent-pink);
  transform: translateY(-3px);
}

/* Code Window Frame (macOS Style) */
.hero-visual {
  display: flex;
  justify-content: center;
}

.code-window {
  width: 100%;
  max-width: 380px;
  background: var(--bg-secondary);
  border: 1px solid var(--border-color);
  border-radius: 14px;
  box-shadow: var(--shadow-window);
  overflow: hidden;
  transition: var(--transition);
}

.window-header {
  background: var(--bg-window-header);
  padding: 14px 16px;
  display: flex;
  align-items: center;
  gap: 8px;
  border-bottom: 1px solid var(--border-color);
  transition: var(--transition);
}

.dot {
  width: 11px;
  height: 11px;
  border-radius: 50%;
}

.dot.red { background: #ef4444; }
.dot.yellow { background: #f59e0b; }
.dot.green { background: #10b981; }

.window-body {
  padding: 24px;
  display: flex;
  flex-direction: column;
  align-items: center;
}

.avatar-container {
  width: 100%;
  height: 280px;
  border-radius: 10px;
  overflow: hidden;
  margin-bottom: 18px;
  border: 1px solid var(--border-color);
}

.dev-avatar {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.profile-info {
  width: 100%;
  background: var(--bg-profile-info);
  padding: 14px 16px;
  border-radius: 8px;
  font-family: var(--font-mono);
  font-size: 0.8rem;
  line-height: 1.5;
  border: 1px solid var(--border-color);
  display: flex;
  flex-direction: column;
  gap: 8px;
  transition: var(--transition);
}

.profile-info-item {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding-bottom: 6px;
  border-bottom: 1px solid var(--divider-color);
}

.profile-info-item:last-child {
  padding-bottom: 0;
  border-bottom: none;
}

.info-label {
  color: var(--accent-cyan);
  font-weight: 500;
}

.info-value {
  color: var(--info-val-color);
  font-weight: 500;
}

.info-value.accent-val {
  color: var(--accent-pink);
  font-weight: 600;
}

/* Sections */
.section {
  padding: 90px 0;
  transition: background-color 0.3s ease;
}

.bg-alt {
  background-color: var(--bg-primary);
}

.section-title {
  font-family: var(--font-mono);
  font-size: 2rem;
  font-weight: 700;
  margin-bottom: 45px;
  text-align: center;
  position: relative;
}

.section-title::after {
  content: "";
  display: block;
  width: 35px;
  height: 3px;
  background-color: var(--accent-pink);
  margin: 10px auto 0;
  border-radius: 2px;
}

/* About Grid */
.about-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 26px;
}

.card {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: 12px;
  padding: 30px;
  transition: var(--transition);
}

.card:hover {
  border-color: rgba(236, 72, 153, 0.4);
}

.terminal-card h3 {
  font-family: var(--font-mono);
  font-size: 1.15rem;
  margin-bottom: 20px;
  color: var(--accent-pink);
  display: flex;
  align-items: center;
  gap: 10px;
}

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

.info-list li {
  margin-bottom: 12px;
  color: var(--text-muted);
  font-size: 0.92rem;
}

.info-list strong {
  color: var(--text-main);
}

.tags-container {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

.tag {
  background: var(--accent-pink-dim);
  border: 1px solid rgba(236, 72, 153, 0.25);
  padding: 6px 14px;
  border-radius: 20px;
  font-size: 0.82rem;
  font-weight: 500;
  color: var(--text-tag);
}

/* Skills */
.skills-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 22px;
}

.skill-box {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: 12px;
  padding: 30px 20px;
  text-align: center;
  transition: var(--transition);
}

.skill-box:hover {
  transform: translateY(-5px);
  border-color: var(--accent-pink);
  box-shadow: 0 10px 25px var(--accent-glow);
}

.skill-box i {
  font-size: 2.3rem;
  margin-bottom: 16px;
  color: var(--accent-pink);
}

.skill-box h4 {
  font-family: var(--font-mono);
  margin-bottom: 8px;
  font-size: 1.05rem;
}

.skill-box p {
  color: var(--text-muted);
  font-size: 0.88rem;
}

/* Hobbies */
.hobbies-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 22px;
}

.hobby-card {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  padding: 26px;
  border-radius: 12px;
  text-align: center;
  transition: var(--transition);
}

.hobby-card:hover {
  border-color: rgba(236, 72, 153, 0.4);
  transform: translateY(-4px);
}

.hobby-card i {
  font-size: 2rem;
  margin-bottom: 12px;
  color: var(--accent-pink);
}

.hobby-card h4 {
  font-family: var(--font-mono);
  margin-bottom: 8px;
}

.hobby-card p {
  color: var(--text-muted);
  font-size: 0.86rem;
}

/* Contact Details */
.contact-container {
  text-align: center;
}

.contact-subtitle {
  color: var(--text-muted);
  margin-bottom: 40px;
  font-size: 1rem;
}

.contact-details {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
  max-width: 900px;
  margin: 0 auto;
}

.contact-box {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  padding: 26px 20px;
  border-radius: 12px;
  transition: var(--transition);
}

.contact-box:hover {
  border-color: var(--accent-pink);
  transform: translateY(-4px);
}

.contact-box i {
  font-size: 1.8rem;
  margin-bottom: 12px;
  color: var(--accent-pink);
}

.contact-box h4 {
  font-family: var(--font-mono);
  font-size: 0.95rem;
  margin-bottom: 6px;
}

.contact-box a {
  color: var(--text-muted);
  text-decoration: none;
  font-size: 0.88rem;
  word-break: break-all;
  transition: var(--transition);
}

.contact-box a:hover {
  color: var(--accent-pink);
}

/* Footer & Back to top */
.footer {
  padding: 30px 0;
  border-top: 1px solid var(--border-color);
  background-color: var(--bg-footer);
  font-size: 0.85rem;
  color: var(--text-muted);
  transition: background-color 0.3s ease;
}

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

.domain-link {
  color: var(--accent-pink);
  text-decoration: none;
}

.footer-center {
  font-family: var(--font-mono);
  font-size: 0.8rem;
  color: var(--text-footer-center);
}

.footer-right {
  display: flex;
  align-items: center;
  gap: 12px;
}

.back-to-top {
  display: inline-block;
  padding: 6px 14px;
  border: 1px solid var(--border-color);
  color: var(--text-main);
  text-decoration: none;
  font-family: var(--font-mono);
  font-size: 0.82rem;
  border-radius: 4px;
  transition: var(--transition);
}

.back-to-top:hover {
  border-color: var(--accent-pink);
  color: var(--accent-pink);
  background: var(--accent-pink-dim);
}

/* Desktop vs Mobile visibility safeguard for theme switch */
@media (min-width: 901px) {
  .footer-right .theme-switch {
    display: none !important;
  }
}

/* Responsive (Mobile & Tablet) */
@media (max-width: 900px) {
  .nav-actions .theme-switch {
    display: none !important;
  }

  .navbar {
    width: calc(100% - 16px);
    max-width: 100%;
    top: 10px;
    margin: 10px auto 0;
    border-radius: 14px;
  }

  .nav-container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 8px 10px;
    gap: 6px;
    width: 100%;
  }

  .nav-logo-img {
    height: 34px;
    border-radius: 6px;
  }

  .nav-links {
    gap: 10px;
  }

  .nav-links a {
    font-size: 0.74rem;
  }

  .nav-actions {
    gap: 0;
  }

  .nav-btn {
    padding: 5px 9px;
    font-size: 0.74rem;
    border-radius: 7px;
  }

  .hero-container {
    grid-template-columns: 1fr;
    gap: 40px;
  }

  .code-title {
    font-size: 2.6rem;
  }

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

  .floating-status-pill {
    top: auto;
    bottom: 20px;
    right: 20px;
    transform: none;
  }

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

  .footer-right {
    justify-content: center;
  }
}

@media (max-width: 370px) {
  .nav-container {
    padding: 6px 8px;
    gap: 4px;
  }

  .nav-logo-img {
    height: 28px;
  }

  .nav-links {
    gap: 7px;
  }

  .nav-links a {
    font-size: 0.68rem;
  }

  .nav-btn {
    padding: 4px 7px;
    font-size: 0.68rem;
  }
}