/* ==========================================================================
   Bora Uğur — Portfolio Stylesheet
   Modern, Ultra-responsive, Light & Dark Theme Support
   ========================================================================== */

/* --------------------------------------------------------------------------
   Design Tokens & CSS Variables
   -------------------------------------------------------------------------- */
:root {
  /* Light Theme (Default) */
  --bg-primary: #ffffff;
  --bg-secondary: #f8fafc;
  --bg-tertiary: #f1f5f9;
  --bg-card: #ffffff;
  --bg-card-hover: #fcfdfe;
  --bg-card-muted: #f8fafc;
  
  --border-color: #e2e8f0;
  --border-subtle: #edf2f7;
  --border-focus: #6366f1;
  
  --text-primary: #0f172a;
  --text-secondary: #334155;
  --text-muted: #64748b;
  --text-inverse: #ffffff;
  
  --brand-indigo: #4f46e5;
  --brand-indigo-light: #6366f1;
  --brand-cyan: #06b6d4;
  --brand-emerald: #10b981;
  --brand-amber: #f59e0b;
  
  --primary-gradient: linear-gradient(135deg, #4f46e5 0%, #06b6d4 100%);
  --accent-gradient-glow: radial-gradient(circle at center, rgba(79, 70, 229, 0.12) 0%, rgba(6, 182, 212, 0.04) 50%, transparent 80%);
  
  --badge-bg: #eff6ff;
  --badge-text: #1d4ed8;
  --badge-border: #dbeafe;
  
  --header-bg: rgba(255, 255, 255, 0.85);
  --header-border: rgba(226, 232, 240, 0.8);
  
  --card-shadow: 0 4px 20px -2px rgba(15, 23, 42, 0.05), 0 2px 6px -1px rgba(15, 23, 42, 0.03);
  --card-shadow-hover: 0 20px 30px -10px rgba(79, 70, 229, 0.12), 0 10px 20px -5px rgba(15, 23, 42, 0.04);
  --card-shadow-active: 0 10px 15px -3px rgba(15, 23, 42, 0.08);

  --font-sans: 'Plus Jakarta Sans', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Helvetica, Arial, sans-serif;
  --font-mono: 'JetBrains Mono', 'Fira Code', monospace;
  
  --transition-fast: 0.15s ease;
  --transition-normal: 0.25s ease;
  --transition-slow: 0.4s cubic-bezier(0.16, 1, 0.3, 1);
  
  --radius-sm: 8px;
  --radius-md: 14px;
  --radius-lg: 20px;
  --radius-xl: 28px;
  --radius-full: 9999px;
}

/* --------------------------------------------------------------------------
   Dark Theme Overrides
   -------------------------------------------------------------------------- */
[data-theme="dark"] {
  --bg-primary: #0a0e17;
  --bg-secondary: #0f172a;
  --bg-tertiary: #1e293b;
  --bg-card: #111a2e;
  --bg-card-hover: #16223c;
  --bg-card-muted: #141e33;
  
  --border-color: #1e293b;
  --border-subtle: #182236;
  --border-focus: #818cf8;
  
  --text-primary: #f8fafc;
  --text-secondary: #cbd5e1;
  --text-muted: #94a3b8;
  --text-inverse: #0f172a;
  
  --primary-gradient: linear-gradient(135deg, #6366f1 0%, #22d3ee 100%);
  --accent-gradient-glow: radial-gradient(circle at center, rgba(99, 102, 241, 0.18) 0%, rgba(34, 211, 238, 0.08) 50%, transparent 80%);
  
  --badge-bg: rgba(99, 102, 241, 0.15);
  --badge-text: #a5b4fc;
  --badge-border: rgba(99, 102, 241, 0.3);
  
  --header-bg: rgba(10, 14, 23, 0.85);
  --header-border: rgba(30, 41, 59, 0.8);
  
  --card-shadow: 0 8px 30px rgba(0, 0, 0, 0.4);
  --card-shadow-hover: 0 20px 35px -5px rgba(0, 0, 0, 0.6), 0 0 25px rgba(99, 102, 241, 0.18);
  --card-shadow-active: 0 10px 20px rgba(0, 0, 0, 0.5);
}

/* --------------------------------------------------------------------------
   Reset & Base Styles
   -------------------------------------------------------------------------- */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  scroll-behavior: smooth;
  font-size: 16px;
  -webkit-text-size-adjust: 100%;
}

body {
  font-family: var(--font-sans);
  background-color: var(--bg-primary);
  color: var(--text-primary);
  line-height: 1.65;
  transition: background-color var(--transition-normal), color var(--transition-normal);
  overflow-x: hidden;
  position: relative;
}

/* Subtle background accent glow */
body::before {
  content: '';
  position: fixed;
  top: 0;
  left: 50%;
  transform: translateX(-50%);
  width: 1000px;
  height: 550px;
  background: var(--accent-gradient-glow);
  pointer-events: none;
  z-index: 0;
}

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

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

ul, ol {
  list-style: none;
}

button {
  cursor: pointer;
  border: none;
  background: none;
  font-family: inherit;
  color: inherit;
}

/* --------------------------------------------------------------------------
   Layout Container & Section Helpers
   -------------------------------------------------------------------------- */
.container {
  width: 100%;
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 1.5rem;
  position: relative;
  z-index: 1;
}

section {
  padding: 6rem 0;
  position: relative;
}

@media (max-width: 768px) {
  section {
    padding: 4rem 0;
  }
}

.section-header {
  text-align: center;
  max-width: 760px;
  margin: 0 auto 3.5rem auto;
}

.section-tag {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  font-size: 0.8125rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--brand-indigo-light);
  background: var(--badge-bg);
  border: 1px solid var(--badge-border);
  padding: 0.35rem 0.9rem;
  border-radius: var(--radius-full);
  margin-bottom: 1rem;
}

.section-title {
  font-size: 2.25rem;
  font-weight: 800;
  letter-spacing: -0.03em;
  line-height: 1.2;
  margin-bottom: 1rem;
  color: var(--text-primary);
}

@media (max-width: 768px) {
  .section-title {
    font-size: 1.85rem;
  }
}

.section-subtitle {
  font-size: 1.125rem;
  color: var(--text-muted);
  line-height: 1.6;
}

.gradient-text {
  background: var(--primary-gradient);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  display: inline-block;
}

/* --------------------------------------------------------------------------
   Header & Navbar
   -------------------------------------------------------------------------- */
.navbar {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 76px;
  background: var(--header-bg);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-bottom: 1px solid var(--header-border);
  z-index: 1000;
  transition: all var(--transition-normal);
}

.navbar .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 100%;
}

.nav-brand {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  font-size: 1.25rem;
  font-weight: 800;
  letter-spacing: -0.02em;
}

.brand-icon {
  width: 38px;
  height: 38px;
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--primary-gradient);
  color: #ffffff;
  font-weight: 900;
  font-size: 1.05rem;
  box-shadow: 0 4px 12px rgba(79, 70, 229, 0.3);
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 1.8rem;
}

.nav-link {
  font-size: 0.9375rem;
  font-weight: 600;
  color: var(--text-secondary);
  position: relative;
  padding: 0.5rem 0;
  transition: color var(--transition-fast);
}

.nav-link:hover,
.nav-link.active {
  color: var(--brand-indigo-light);
}

.nav-link.active::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 100%;
  height: 2px;
  background: var(--primary-gradient);
  border-radius: var(--radius-full);
}

.nav-actions {
  display: flex;
  align-items: center;
  gap: 0.85rem;
}

/* Theme Toggle Button */
.theme-toggle-btn {
  width: 42px;
  height: 42px;
  border-radius: var(--radius-md);
  border: 1px solid var(--border-color);
  background: var(--bg-card);
  color: var(--text-secondary);
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all var(--transition-fast);
  box-shadow: var(--card-shadow);
}

.theme-toggle-btn:hover {
  background: var(--bg-tertiary);
  color: var(--brand-indigo-light);
  border-color: var(--border-focus);
  transform: translateY(-1px);
}

.theme-toggle-btn svg {
  width: 20px;
  height: 20px;
  transition: transform var(--transition-slow);
}

[data-theme="dark"] .icon-sun {
  display: block;
}
[data-theme="dark"] .icon-moon {
  display: none;
}
.icon-sun {
  display: none;
}
.icon-moon {
  display: block;
}

/* Nav CTA */
.btn-nav {
  padding: 0.55rem 1.15rem;
  font-size: 0.875rem;
  font-weight: 700;
  border-radius: var(--radius-full);
  background: var(--primary-gradient);
  color: #ffffff;
  box-shadow: 0 4px 14px rgba(79, 70, 229, 0.25);
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  transition: all var(--transition-fast);
}

.btn-nav:hover {
  transform: translateY(-1px);
  box-shadow: 0 6px 18px rgba(79, 70, 229, 0.35);
  color: #ffffff;
}

/* Mobile Toggle Hamburger */
.mobile-toggle {
  display: none;
  width: 42px;
  height: 42px;
  border-radius: var(--radius-md);
  border: 1px solid var(--border-color);
  background: var(--bg-card);
  color: var(--text-primary);
  align-items: center;
  justify-content: center;
  transition: all var(--transition-fast);
}

.mobile-toggle:hover {
  background: var(--bg-tertiary);
}

.mobile-toggle svg {
  width: 22px;
  height: 22px;
}

/* Mobile Drawer */
.mobile-drawer {
  display: none;
  position: fixed;
  top: 76px;
  left: 0;
  width: 100%;
  background: var(--bg-card);
  border-bottom: 1px solid var(--border-color);
  padding: 1.5rem 1.5rem 2rem 1.5rem;
  z-index: 999;
  box-shadow: 0 15px 30px rgba(0, 0, 0, 0.15);
  transform: translateY(-120%);
  opacity: 0;
  visibility: hidden;
  transition: all var(--transition-slow);
}

.mobile-drawer.open {
  transform: translateY(0);
  opacity: 1;
  visibility: visible;
}

.mobile-nav-links {
  display: flex;
  flex-direction: column;
  gap: 1.1rem;
  margin-bottom: 1.5rem;
}

.mobile-nav-link {
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--text-primary);
  padding: 0.3rem 0;
}

@media (max-width: 960px) {
  .nav-links, .btn-nav {
    display: none;
  }
  .mobile-toggle {
    display: flex;
  }
  .mobile-drawer {
    display: block;
  }
}

/* --------------------------------------------------------------------------
   Hero Section
   -------------------------------------------------------------------------- */
.hero-section {
  padding-top: 8.5rem;
  padding-bottom: 6rem;
  overflow: hidden;
}

.hero-grid {
  display: grid;
  grid-template-columns: 1.15fr 0.85fr;
  align-items: center;
  gap: 3.5rem;
}

.hero-badge-wrapper {
  display: inline-flex;
  align-items: center;
  gap: 0.6rem;
  padding: 0.4rem 1rem;
  background: var(--badge-bg);
  border: 1px solid var(--badge-border);
  border-radius: var(--radius-full);
  margin-bottom: 1.5rem;
}

.status-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background-color: var(--brand-emerald);
  box-shadow: 0 0 0 3px rgba(16, 185, 129, 0.25);
  animation: pulse-dot 2s infinite;
}

@keyframes pulse-dot {
  0% { box-shadow: 0 0 0 0 rgba(16, 185, 129, 0.4); }
  70% { box-shadow: 0 0 0 7px rgba(16, 185, 129, 0); }
  100% { box-shadow: 0 0 0 0 rgba(16, 185, 129, 0); }
}

.hero-badge-text {
  font-size: 0.85rem;
  font-weight: 700;
  color: var(--badge-text);
  letter-spacing: 0.01em;
}

.hero-title {
  font-size: 3.25rem;
  font-weight: 900;
  line-height: 1.15;
  letter-spacing: -0.035em;
  margin-bottom: 1.25rem;
}

.hero-title .name-highlight {
  display: block;
  font-size: 1.5rem;
  font-weight: 800;
  color: var(--brand-indigo-light);
  letter-spacing: 0.05em;
  text-transform: uppercase;
  margin-bottom: 0.5rem;
}

.hero-desc {
  font-size: 1.2rem;
  line-height: 1.65;
  color: var(--text-secondary);
  margin-bottom: 2rem;
  max-width: 580px;
}

.hero-actions {
  display: flex;
  align-items: center;
  gap: 1.2rem;
  flex-wrap: wrap;
  margin-bottom: 2.5rem;
}

/* Button Styles */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.6rem;
  padding: 0.85rem 1.85rem;
  font-size: 1rem;
  font-weight: 700;
  border-radius: var(--radius-full);
  transition: all var(--transition-fast);
  text-decoration: none;
}

.btn-primary {
  background: var(--primary-gradient);
  color: #ffffff;
  box-shadow: 0 6px 20px rgba(79, 70, 229, 0.28);
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 10px 25px rgba(79, 70, 229, 0.4);
  color: #ffffff;
}

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

.btn-secondary:hover {
  background: var(--bg-tertiary);
  border-color: var(--border-focus);
  transform: translateY(-2px);
  color: var(--brand-indigo-light);
}

.hero-tech-strip {
  display: flex;
  align-items: center;
  gap: 1.5rem;
  padding-top: 1.5rem;
  border-top: 1px solid var(--border-color);
  font-size: 0.875rem;
  color: var(--text-muted);
}

.hero-tech-tags {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  flex-wrap: wrap;
}

.hero-tech-tag {
  font-size: 0.775rem;
  font-weight: 600;
  padding: 0.2rem 0.65rem;
  background: var(--bg-secondary);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-sm);
  color: var(--text-secondary);
}

/* Hero Avatar Column */
.hero-image-col {
  position: relative;
  display: flex;
  justify-content: center;
}

.hero-image-wrapper {
  position: relative;
  width: 360px;
  max-width: 100%;
}

.hero-image-glow {
  position: absolute;
  top: -15px;
  left: -15px;
  right: -15px;
  bottom: -15px;
  background: var(--primary-gradient);
  border-radius: var(--radius-xl);
  filter: blur(25px);
  opacity: 0.35;
  z-index: 0;
}

.hero-avatar-frame {
  position: relative;
  z-index: 1;
  background: var(--bg-card);
  padding: 8px;
  border-radius: var(--radius-xl);
  border: 2px solid var(--border-color);
  box-shadow: var(--card-shadow-hover);
  overflow: hidden;
}

.hero-avatar-img {
  width: 100%;
  height: 420px;
  object-fit: cover;
  object-position: center top;
  border-radius: calc(var(--radius-xl) - 6px);
  filter: contrast(1.03) saturate(1.05);
  transition: transform var(--transition-slow);
}

.hero-avatar-frame:hover .hero-avatar-img {
  transform: scale(1.02);
}

/* Floating Tech Badges */
.floating-badge {
  position: absolute;
  z-index: 2;
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  backdrop-filter: blur(12px);
  padding: 0.65rem 1rem;
  border-radius: var(--radius-lg);
  box-shadow: var(--card-shadow);
  display: flex;
  align-items: center;
  gap: 0.6rem;
  font-size: 0.8125rem;
  font-weight: 700;
  animation: float 4s ease-in-out infinite;
}

.floating-badge-top {
  top: 15px;
  right: -25px;
  animation-delay: 0s;
}

.floating-badge-bottom {
  bottom: 25px;
  left: -30px;
  animation-delay: 2s;
}

@keyframes float {
  0%, 100% { transform: translateY(0px); }
  50% { transform: translateY(-8px); }
}

@media (max-width: 960px) {
  .hero-grid {
    grid-template-columns: 1fr;
    text-align: center;
    gap: 3rem;
  }
  .hero-desc {
    margin: 0 auto 2rem auto;
  }
  .hero-actions {
    justify-content: center;
  }
  .hero-tech-strip {
    justify-content: center;
  }
  .hero-image-wrapper {
    margin: 0 auto;
    width: 300px;
  }
  .hero-avatar-img {
    height: 360px;
  }
  .floating-badge-top {
    right: -10px;
  }
  .floating-badge-bottom {
    left: -10px;
  }
}

@media (max-width: 640px) {
  .hero-title {
    font-size: 2.25rem;
  }
  .hero-title .name-highlight {
    font-size: 1.15rem;
  }
  .btn {
    width: 100%;
  }
}

/* --------------------------------------------------------------------------
   About Section (Hakkımda)
   -------------------------------------------------------------------------- */
.about-section {
  background-color: var(--bg-secondary);
  border-top: 1px solid var(--border-color);
  border-bottom: 1px solid var(--border-color);
}

.about-card {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-xl);
  padding: 3rem;
  box-shadow: var(--card-shadow);
  display: grid;
  grid-template-columns: 1.2fr 0.8fr;
  gap: 3rem;
  align-items: center;
}

.about-lead {
  font-size: 1.35rem;
  font-weight: 700;
  line-height: 1.5;
  color: var(--text-primary);
  margin-bottom: 1.5rem;
}

.about-text {
  font-size: 1.05rem;
  line-height: 1.75;
  color: var(--text-secondary);
  margin-bottom: 1.25rem;
}

.about-highlights {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1.2rem;
}

.highlight-box {
  background: var(--bg-secondary);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  padding: 1.25rem;
  display: flex;
  align-items: flex-start;
  gap: 1rem;
  transition: all var(--transition-fast);
}

.highlight-box:hover {
  border-color: var(--border-focus);
  transform: translateX(4px);
}

.highlight-icon {
  font-size: 1.5rem;
  line-height: 1;
}

.highlight-title {
  font-size: 0.95rem;
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: 0.25rem;
}

.highlight-desc {
  font-size: 0.85rem;
  color: var(--text-muted);
  line-height: 1.4;
}

@media (max-width: 900px) {
  .about-card {
    grid-template-columns: 1fr;
    padding: 2rem 1.5rem;
    gap: 2rem;
  }
}

/* --------------------------------------------------------------------------
   Expertise Section (Uzmanlık Alanları)
   -------------------------------------------------------------------------- */
.expertise-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1.8rem;
}

@media (max-width: 768px) {
  .expertise-grid {
    grid-template-columns: 1fr;
  }
}

.expertise-card {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  padding: 2.2rem;
  box-shadow: var(--card-shadow);
  transition: all var(--transition-fast);
  position: relative;
  overflow: hidden;
}

.expertise-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 4px;
  height: 100%;
  background: var(--primary-gradient);
  opacity: 0;
  transition: opacity var(--transition-fast);
}

.expertise-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--card-shadow-hover);
  border-color: var(--border-focus);
}

.expertise-card:hover::before {
  opacity: 1;
}

.card-header-row {
  display: flex;
  align-items: center;
  gap: 1rem;
  margin-bottom: 1.5rem;
}

.card-emoji-icon {
  width: 50px;
  height: 50px;
  border-radius: var(--radius-md);
  background: var(--bg-secondary);
  border: 1px solid var(--border-color);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.6rem;
}

.card-title {
  font-size: 1.35rem;
  font-weight: 800;
  letter-spacing: -0.02em;
}

.expertise-pill-list {
  display: flex;
  flex-wrap: wrap;
  gap: 0.6rem;
}

.expertise-pill {
  font-size: 0.875rem;
  font-weight: 600;
  padding: 0.4rem 0.85rem;
  background: var(--bg-secondary);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-full);
  color: var(--text-secondary);
  transition: all var(--transition-fast);
}

.expertise-card:hover .expertise-pill {
  border-color: var(--border-color);
  background: var(--bg-tertiary);
  color: var(--text-primary);
}

/* --------------------------------------------------------------------------
   Featured Projects Section (Öne Çıkan Projeler)
   -------------------------------------------------------------------------- */
.projects-section {
  background-color: var(--bg-secondary);
  border-top: 1px solid var(--border-color);
  border-bottom: 1px solid var(--border-color);
}

.featured-projects-list {
  display: flex;
  flex-direction: column;
  gap: 2.5rem;
  margin-bottom: 4rem;
}

.project-feature-card {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-xl);
  padding: 2.75rem;
  box-shadow: var(--card-shadow);
  transition: all var(--transition-fast);
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 2.5rem;
  align-items: center;
  position: relative;
  overflow: hidden;
}

.project-feature-card:hover {
  box-shadow: var(--card-shadow-hover);
  border-color: var(--border-focus);
}

.project-badge-top {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  font-size: 0.775rem;
  font-weight: 800;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--brand-indigo-light);
  background: var(--badge-bg);
  border: 1px solid var(--badge-border);
  padding: 0.3rem 0.75rem;
  border-radius: var(--radius-full);
  margin-bottom: 1rem;
}

.project-title {
  font-size: 2rem;
  font-weight: 900;
  letter-spacing: -0.03em;
  color: var(--text-primary);
  margin-bottom: 0.75rem;
}

.project-summary {
  font-size: 1.05rem;
  font-weight: 600;
  color: var(--brand-indigo-light);
  margin-bottom: 1rem;
  line-height: 1.4;
}

.project-detail-text {
  font-size: 0.95rem;
  color: var(--text-secondary);
  line-height: 1.65;
  margin-bottom: 1.5rem;
}

.project-features-list {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 0.6rem 1rem;
  margin-bottom: 1.75rem;
}

.project-feature-item {
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--text-secondary);
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.check-bullet {
  color: var(--brand-emerald);
  font-size: 1rem;
}

.project-tech-chips {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  padding-top: 1.25rem;
  border-top: 1px solid var(--border-color);
}

.tech-chip {
  font-size: 0.775rem;
  font-weight: 700;
  color: var(--text-muted);
  background: var(--bg-secondary);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-sm);
  padding: 0.25rem 0.65rem;
}

/* Visual mock container inside project card */
.project-visual {
  background: var(--bg-secondary);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  padding: 2rem;
  height: 100%;
  min-height: 320px;
  display: flex;
  flex-direction: column;
  justify-content: center;
  position: relative;
  overflow: hidden;
}

.visual-mock-header {
  display: flex;
  align-items: center;
  gap: 0.4rem;
  margin-bottom: 1.5rem;
}

.mock-dot {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: var(--border-color);
}
.mock-dot.red { background: #ef4444; }
.mock-dot.yellow { background: #f59e0b; }
.mock-dot.green { background: #10b981; }

.visual-mock-content {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  padding: 1.5rem;
  box-shadow: var(--card-shadow);
}

.mock-stat-row {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 0.75rem;
  margin-bottom: 1rem;
}

.mock-stat-box {
  background: var(--bg-secondary);
  padding: 0.75rem;
  border-radius: var(--radius-sm);
}

.mock-stat-label {
  font-size: 0.7rem;
  color: var(--text-muted);
  font-weight: 600;
  text-transform: uppercase;
}

.mock-stat-val {
  font-size: 1rem;
  font-weight: 800;
  color: var(--text-primary);
}

.mock-list-item {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0.5rem 0;
  border-bottom: 1px solid var(--border-subtle);
  font-size: 0.8rem;
  color: var(--text-secondary);
}

.mock-list-item:last-child {
  border-bottom: none;
}

@media (max-width: 960px) {
  .project-feature-card {
    grid-template-columns: 1fr;
    padding: 2rem 1.5rem;
    gap: 2rem;
  }
  .project-features-list {
    grid-template-columns: 1fr;
  }
  .project-visual {
    min-height: auto;
  }
}

/* Secondary projects grid */
.other-projects-title {
  font-size: 1.5rem;
  font-weight: 800;
  letter-spacing: -0.02em;
  margin-bottom: 1.5rem;
  text-align: center;
}

.other-projects-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1.5rem;
}

@media (max-width: 1024px) {
  .other-projects-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 600px) {
  .other-projects-grid {
    grid-template-columns: 1fr;
  }
}

.other-project-card {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  padding: 1.75rem;
  box-shadow: var(--card-shadow);
  transition: all var(--transition-fast);
}

.other-project-card:hover {
  transform: translateY(-4px);
  border-color: var(--border-focus);
  box-shadow: var(--card-shadow-hover);
}

.other-card-icon {
  font-size: 1.75rem;
  margin-bottom: 1rem;
}

.other-card-title {
  font-size: 1.15rem;
  font-weight: 800;
  margin-bottom: 0.5rem;
  color: var(--text-primary);
}

.other-card-desc {
  font-size: 0.875rem;
  color: var(--text-secondary);
  line-height: 1.5;
}

/* --------------------------------------------------------------------------
   Tech Stack Section (Teknolojiler & Araçlar)
   -------------------------------------------------------------------------- */
.tech-grid {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: 1.5rem;
}

@media (max-width: 1100px) {
  .tech-grid {
    grid-template-columns: repeat(3, 1fr);
  }
}

@media (max-width: 768px) {
  .tech-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 480px) {
  .tech-grid {
    grid-template-columns: 1fr;
  }
}

.tech-group-card {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  padding: 1.8rem 1.4rem;
  box-shadow: var(--card-shadow);
  transition: all var(--transition-fast);
}

.tech-group-card:hover {
  transform: translateY(-4px);
  border-color: var(--border-focus);
  box-shadow: var(--card-shadow-hover);
}

.tech-group-title {
  font-size: 1.1rem;
  font-weight: 800;
  margin-bottom: 1.25rem;
  display: flex;
  align-items: center;
  gap: 0.5rem;
  color: var(--text-primary);
  border-bottom: 1px solid var(--border-color);
  padding-bottom: 0.75rem;
}

.tech-item-list {
  display: flex;
  flex-direction: column;
  gap: 0.65rem;
}

.tech-item {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  font-size: 0.9rem;
  font-weight: 600;
  color: var(--text-secondary);
}

.tech-dot {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--brand-indigo-light);
}

/* --------------------------------------------------------------------------
   Workflow / Approach Section (Çalışma Yaklaşımım)
   -------------------------------------------------------------------------- */
.workflow-section {
  background-color: var(--bg-secondary);
  border-top: 1px solid var(--border-color);
  border-bottom: 1px solid var(--border-color);
}

.workflow-grid {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: 1.25rem;
}

@media (max-width: 1024px) {
  .workflow-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 600px) {
  .workflow-grid {
    grid-template-columns: 1fr;
  }
}

.workflow-card {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  padding: 2rem 1.4rem;
  box-shadow: var(--card-shadow);
  position: relative;
  transition: all var(--transition-fast);
}

.workflow-card:hover {
  transform: translateY(-4px);
  border-color: var(--border-focus);
  box-shadow: var(--card-shadow-hover);
}

.step-num {
  font-size: 2.25rem;
  font-weight: 900;
  background: var(--primary-gradient);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  line-height: 1;
  margin-bottom: 1rem;
}

.step-title {
  font-size: 1.15rem;
  font-weight: 800;
  color: var(--text-primary);
  margin-bottom: 0.6rem;
}

.step-desc {
  font-size: 0.875rem;
  color: var(--text-secondary);
  line-height: 1.55;
}

/* --------------------------------------------------------------------------
   CTA & Collaboration Banner (Benimle Çalışın)
   -------------------------------------------------------------------------- */
.cta-banner {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-xl);
  padding: 4rem 3rem;
  text-align: center;
  position: relative;
  overflow: hidden;
  box-shadow: var(--card-shadow-hover);
  margin-bottom: 4rem;
}

.cta-banner::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 5px;
  background: var(--primary-gradient);
}

.cta-title {
  font-size: 2.5rem;
  font-weight: 900;
  letter-spacing: -0.03em;
  margin-bottom: 1.25rem;
}

.cta-desc {
  font-size: 1.2rem;
  color: var(--text-secondary);
  max-width: 720px;
  margin: 0 auto 2rem auto;
  line-height: 1.6;
}

.cta-tags {
  display: flex;
  align-items: center;
  justify-content: center;
  flex-wrap: wrap;
  gap: 0.75rem;
  margin-bottom: 2.5rem;
}

.cta-tag-item {
  font-size: 0.85rem;
  font-weight: 700;
  padding: 0.4rem 1rem;
  border-radius: var(--radius-full);
  background: var(--bg-secondary);
  border: 1px solid var(--border-color);
  color: var(--text-secondary);
}

@media (max-width: 768px) {
  .cta-banner {
    padding: 2.5rem 1.5rem;
  }
  .cta-title {
    font-size: 1.95rem;
  }
  .cta-desc {
    font-size: 1.05rem;
  }
}

/* --------------------------------------------------------------------------
   Contact Section (İletişim)
   -------------------------------------------------------------------------- */
.contact-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.5rem;
}

@media (max-width: 860px) {
  .contact-grid {
    grid-template-columns: 1fr;
  }
}

.contact-card {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  padding: 2rem;
  box-shadow: var(--card-shadow);
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  transition: all var(--transition-fast);
}

.contact-card:hover {
  transform: translateY(-4px);
  border-color: var(--border-focus);
  box-shadow: var(--card-shadow-hover);
}

.contact-icon-circle {
  width: 56px;
  height: 56px;
  border-radius: 50%;
  background: var(--badge-bg);
  color: var(--brand-indigo-light);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.5rem;
  margin-bottom: 1.25rem;
}

.contact-card-title {
  font-size: 1.2rem;
  font-weight: 800;
  margin-bottom: 0.4rem;
}

.contact-card-val {
  font-size: 1rem;
  font-weight: 600;
  color: var(--text-secondary);
  margin-bottom: 1.25rem;
  word-break: break-all;
}

.copy-email-btn {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  font-size: 0.875rem;
  font-weight: 700;
  padding: 0.55rem 1.2rem;
  border-radius: var(--radius-full);
  background: var(--bg-secondary);
  border: 1px solid var(--border-color);
  color: var(--text-primary);
  transition: all var(--transition-fast);
}

.copy-email-btn:hover {
  background: var(--brand-indigo-light);
  color: #ffffff;
  border-color: var(--brand-indigo-light);
}

/* Toast notification */
.toast-notice {
  position: fixed;
  bottom: 2rem;
  right: 2rem;
  background: var(--text-primary);
  color: var(--bg-primary);
  padding: 0.75rem 1.5rem;
  border-radius: var(--radius-full);
  font-size: 0.9rem;
  font-weight: 700;
  box-shadow: 0 10px 25px rgba(0, 0, 0, 0.25);
  z-index: 2000;
  opacity: 0;
  transform: translateY(20px);
  pointer-events: none;
  transition: all var(--transition-normal);
}

.toast-notice.show {
  opacity: 1;
  transform: translateY(0);
}

/* --------------------------------------------------------------------------
   Footer
   -------------------------------------------------------------------------- */
.footer {
  border-top: 1px solid var(--border-color);
  padding: 3rem 0;
  background: var(--bg-card);
}

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

.footer-copy {
  font-size: 0.875rem;
  color: var(--text-muted);
}

.footer-links {
  display: flex;
  align-items: center;
  gap: 1.5rem;
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--text-secondary);
}

.footer-links a:hover {
  color: var(--brand-indigo-light);
}

@media (max-width: 640px) {
  .footer-content {
    flex-direction: column;
    text-align: center;
  }
}