/* ==============================================================================
   mehmetunlu.com.tr - Modern, Geniş Ekran & Bölme Çizgisiz Lüks Tasarım
   Gece / Gündüz Teması & Çok Dilli Destek
   ============================================================================== */

:root {
  /* Koyu Tema (Varsayılan) */
  --bg: #141518;
  --bg-subtle: #1c1d22;
  --bg-card: #1b1c21;
  --bg-card-hover: #22232a;
  
  --border: #292a34;
  --border-hover: #3e404f;
  --border-active: #ffffff;

  --text: #f3f4f6;
  --text-muted: #9ca3af;
  --text-dim: #6b7280;

  --circle-track: #262832;
  
  --control-bg: #1b1c21;
  --control-hover: #262730;

  --font: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Helvetica, Arial, sans-serif;

  --radius-sm: 6px;
  --radius-md: 10px;
  --radius-lg: 14px;
  --radius-full: 9999px;

  --transition: 0.18s cubic-bezier(0.16, 1, 0.3, 1);
}

/* Açık Tema (Gündüz Modu - Apple & Stripe Estetiği) */
[data-theme="light"] {
  --bg: #f8f9fb;
  --bg-subtle: #f1f3f7;
  --bg-card: #ffffff;
  --bg-card-hover: #fcfcfd;

  --border: #e2e5eb;
  --border-hover: #caced8;
  --border-active: #0f172a;

  --text: #0f172a;
  --text-muted: #475569;
  --text-dim: #64748b;

  --circle-track: #e9ecef;

  --control-bg: #ffffff;
  --control-hover: #f1f3f7;
}

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

html {
  scroll-behavior: smooth;
}

body {
  font-family: var(--font);
  background-color: var(--bg);
  color: var(--text);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  transition: background-color 0.25s ease, color 0.25s ease;
}

::selection {
  background: var(--text);
  color: var(--bg);
}

/* Ana İçerik Konteyneri (1060px Genişlik) */
.cv-container {
  width: 100%;
  max-width: 1060px;
  margin: 0 auto;
  padding: 0 32px;
}

/* İkon Temelleri */
.cv-icon {
  display: inline-block;
  vertical-align: middle;
  flex-shrink: 0;
}

/* ------------------------------------------------------------------------------
   Üst Kontrol Çubuğu (Tema & Dil Seçici)
   ------------------------------------------------------------------------------ */
.site-top-controls {
  display: flex;
  justify-content: flex-end;
  align-items: center;
  padding: 24px 0 8px 0;
}

.control-actions {
  display: inline-flex;
  align-items: center;
  gap: 10px;
}

/* Dil Seçici (TR / EN) */
.lang-switch-box {
  display: inline-flex;
  align-items: center;
  background: var(--control-bg);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  padding: 4px 8px;
  gap: 5px;
  font-size: 0.76rem;
  font-weight: 700;
  letter-spacing: 0.04em;
  transition: var(--transition);
}

.lang-btn {
  background: none;
  border: none;
  color: var(--text-dim);
  padding: 2px 5px;
  cursor: pointer;
  font-family: inherit;
  font-size: inherit;
  font-weight: inherit;
  transition: var(--transition);
  border-radius: 3px;
}

.lang-btn:hover {
  color: var(--text);
}

.lang-btn.active {
  color: var(--text);
  font-weight: 800;
  background: rgba(125, 125, 125, 0.12);
}

.lang-sep {
  color: var(--border-hover);
  font-size: 0.72rem;
  user-select: none;
}

/* Tema Değiştirici Buton */
.theme-toggle-btn {
  width: 36px;
  height: 36px;
  border-radius: var(--radius-sm);
  background: var(--control-bg);
  border: 1px solid var(--border);
  color: var(--text-muted);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  transition: var(--transition);
}

.theme-toggle-btn:hover {
  border-color: var(--border-hover);
  color: var(--text);
  transform: scale(1.05);
}

/* Tema İkonu Mantığı */
[data-theme="dark"] .icon-moon { display: none; }
[data-theme="dark"] .icon-sun { display: block; }
[data-theme="light"] .icon-sun { display: none; }
[data-theme="light"] .icon-moon { display: block; }

/* ------------------------------------------------------------------------------
   Profil & Giriş (Hero)
   ------------------------------------------------------------------------------ */
.cv-hero {
  padding: 30px 0 20px 0;
}

.cv-title-group {
  display: flex;
  align-items: baseline;
  flex-wrap: wrap;
  gap: 12px;
  margin-bottom: 8px;
}

.cv-name {
  font-size: 3rem;
  font-weight: 800;
  letter-spacing: -0.035em;
  color: var(--text);
  line-height: 1.1;
}

.cv-subname {
  font-size: 1.28rem;
  color: var(--text-dim);
  font-weight: 500;
  letter-spacing: -0.015em;
}

.cv-roles {
  font-size: 1.08rem;
  color: var(--text-muted);
  letter-spacing: -0.01em;
  margin-bottom: 16px;
  font-weight: 500;
}

/* Sosyal Medya İkonları */
.hero-social-icons {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 22px;
}

.hero-social-btn {
  width: 44px;
  height: 44px;
  border-radius: var(--radius-md);
  background: var(--bg-card);
  border: 1px solid var(--border);
  color: var(--text-muted);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  text-decoration: none;
  cursor: pointer;
  transition: var(--transition);
}

.hero-social-btn:hover {
  background: var(--text);
  color: var(--bg);
  border-color: var(--text);
  transform: translateY(-2px);
  box-shadow: 0 6px 18px rgba(0, 0, 0, 0.15);
}

.cv-bio {
  font-size: 1.04rem;
  line-height: 1.74;
  color: var(--text-muted);
  max-width: 960px;
}

/* ------------------------------------------------------------------------------
   Bölüm Standartları (Bölme Çizgisiz, Doğal Akış)
   ------------------------------------------------------------------------------ */
.cv-section {
  padding: 42px 0;
}

.cv-section-header {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 22px;
}

.cv-section-heading {
  font-size: 1.32rem;
  font-weight: 800;
  letter-spacing: -0.02em;
  color: var(--text);
}

/* ------------------------------------------------------------------------------
   Projelerim (2 Kolonlu Geniş Kartlar)
   ------------------------------------------------------------------------------ */
.cv-entries {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 18px;
}

.cv-entry {
  padding: 24px;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  transition: var(--transition);
}

.cv-entry:hover {
  border-color: var(--border-hover);
  background: var(--bg-card-hover);
  transform: translateY(-2px);
}

.cv-entry-top {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 14px;
  margin-bottom: 12px;
}

.cv-entry-title {
  font-size: 1.16rem;
  font-weight: 700;
  color: var(--text);
  letter-spacing: -0.015em;
  margin: 0;
}

.cv-date-badge {
  font-size: 0.74rem;
  font-family: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, monospace;
  font-weight: 600;
  color: var(--text-dim);
  background: var(--bg-subtle);
  border: 1px solid var(--border);
  padding: 3px 9px;
  border-radius: var(--radius-full);
  white-space: nowrap;
}

.cv-entry-desc {
  font-size: 0.94rem;
  line-height: 1.68;
  color: var(--text-muted);
  margin-bottom: 20px;
  flex-grow: 1;
}

.cv-entry-links {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 10px;
}

.cv-tag-link {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  padding: 6px 12px;
  border-radius: var(--radius-sm);
  background: var(--bg-subtle);
  border: 1px solid var(--border);
  color: var(--text);
  font-size: 0.82rem;
  font-weight: 600;
  text-decoration: none;
  transition: var(--transition);
}

.cv-tag-link:hover {
  border-color: var(--border-hover);
  background: var(--bg-card-hover);
  color: var(--text);
}

.cv-tag-highlight {
  background: var(--text);
  border-color: var(--text);
  color: var(--bg);
}

.cv-tag-highlight:hover {
  background: var(--text);
  opacity: 0.92;
  color: var(--bg);
}

/* ------------------------------------------------------------------------------
   Uzmanlık Alanları (3 Kolonlu Grid)
   ------------------------------------------------------------------------------ */
.cv-expertise-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 18px;
}

.cv-expertise-card {
  padding: 24px;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  display: flex;
  flex-direction: column;
  transition: var(--transition);
}

.cv-expertise-card:hover {
  border-color: var(--border-hover);
  background: var(--bg-card-hover);
  transform: translateY(-2px);
}

.cv-expertise-head {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 14px;
}

.cv-expertise-icon-wrap {
  width: 36px;
  height: 36px;
  border-radius: var(--radius-sm);
  background: var(--bg-subtle);
  border: 1px solid var(--border);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  color: var(--text);
  flex-shrink: 0;
}

.cv-expertise-title {
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--text);
  letter-spacing: -0.01em;
  margin: 0;
}

.cv-expertise-desc {
  font-size: 0.92rem;
  line-height: 1.68;
  color: var(--text-muted);
  margin: 0;
}

/* ------------------------------------------------------------------------------
   Yeteneklerim (Yuvarlak Yüzdelik Barlar - Temiz & Keskin Vektör)
   ------------------------------------------------------------------------------ */
.cv-circular-skills-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 18px;
}

.circular-skill-card {
  padding: 26px 18px;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  transition: var(--transition);
  cursor: default;
}

.circular-skill-card:hover {
  border-color: var(--border-hover);
  background: var(--bg-card-hover);
  transform: translateY(-2px);
}

.circular-chart-box {
  position: relative;
  width: 104px;
  height: 104px;
  margin-bottom: 16px;
  transition: transform 0.25s ease;
}

.circular-skill-card:hover .circular-chart-box {
  transform: scale(1.05);
}

.circular-chart {
  display: block;
  transform: rotate(-90deg);
}

/* Temiz arka plan halkası (kesinlikle buğulu/karanlık gölge YOK) */
.circle-bg {
  stroke: var(--circle-track);
}

/* İlerleme halkası (Keskin, net, modern) */
.circle-progress {
  stroke-linecap: round;
  transition: stroke-dashoffset 0.8s cubic-bezier(0.22, 1, 0.36, 1);
  /* Kesinlikle filtre veya drop-shadow uygulanmaz (buğulu/kara görünümü engeller) */
}

/* Yükleniyor Efekti (Kartın Üzerine Gelince Dolum Animasyonu) */
@keyframes loadRingLua {
  0% { stroke-dashoffset: 251.32; }
  100% { stroke-dashoffset: 0.00; }
}

@keyframes loadRingHtml {
  0% { stroke-dashoffset: 251.32; }
  100% { stroke-dashoffset: 50.26; }
}

@keyframes loadRingJs {
  0% { stroke-dashoffset: 251.32; }
  100% { stroke-dashoffset: 62.83; }
}

@keyframes loadRingPhp {
  0% { stroke-dashoffset: 251.32; }
  100% { stroke-dashoffset: 100.53; }
}

.circular-skill-card:hover .skill-progress-lua {
  animation: loadRingLua 0.75s cubic-bezier(0.22, 1, 0.36, 1) forwards;
}

.circular-skill-card:hover .skill-progress-html {
  animation: loadRingHtml 0.75s cubic-bezier(0.22, 1, 0.36, 1) forwards;
}

.circular-skill-card:hover .skill-progress-javascript {
  animation: loadRingJs 0.75s cubic-bezier(0.22, 1, 0.36, 1) forwards;
}

.circular-skill-card:hover .skill-progress-php {
  animation: loadRingPhp 0.75s cubic-bezier(0.22, 1, 0.36, 1) forwards;
}

.circular-value-wrap {
  position: absolute;
  inset: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  pointer-events: none;
}

.circular-percent {
  font-size: 1.25rem;
  font-weight: 800;
  color: var(--text);
  font-family: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, monospace;
  letter-spacing: -0.02em;
  transition: transform 0.25s ease;
}

.circular-skill-card:hover .circular-percent {
  transform: scale(1.1);
}

.circular-skill-info {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
}

.skill-mini-icon {
  color: var(--text-dim);
  flex-shrink: 0;
}

.circular-skill-name {
  font-size: 0.96rem;
  font-weight: 700;
  color: var(--text);
  letter-spacing: -0.01em;
}

/* ------------------------------------------------------------------------------
   Altbilgi (Footer)
   ------------------------------------------------------------------------------ */
.site-footer {
  padding: 50px 0 36px 0;
}

.footer-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 16px;
}

.footer-copy {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 0.86rem;
  color: var(--text-muted);
  font-weight: 500;
}

.footer-heart-icon {
  flex-shrink: 0;
  display: inline-block;
  vertical-align: middle;
  filter: drop-shadow(0 0 6px rgba(239, 68, 68, 0.4));
  animation: heartBeat 2.4s ease-in-out infinite;
}

@keyframes heartBeat {
  0%, 100% { transform: scale(1); }
  14% { transform: scale(1.18); }
  28% { transform: scale(1); }
  42% { transform: scale(1.12); }
  70% { transform: scale(1); }
}

.footer-icons-only {
  display: flex;
  align-items: center;
  gap: 10px;
}

.footer-icon-btn {
  width: 36px;
  height: 36px;
  border-radius: var(--radius-sm);
  background: var(--bg-card);
  border: 1px solid var(--border);
  color: var(--text-muted);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  text-decoration: none;
  cursor: pointer;
  transition: var(--transition);
}

.footer-icon-btn:hover {
  background: var(--text);
  color: var(--bg);
  border-color: var(--text);
  transform: translateY(-2px);
}

/* ------------------------------------------------------------------------------
   Mobil & Tablet Duyarlılık (Responsive)
   ------------------------------------------------------------------------------ */
@media (max-width: 960px) {
  .cv-expertise-grid {
    grid-template-columns: 1fr;
  }
  .cv-circular-skills-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 860px) {
  .cv-entries {
    grid-template-columns: 1fr;
  }
  .cv-name {
    font-size: 2.3rem;
  }
  .cv-container {
    padding: 0 20px;
  }
}

@media (max-width: 500px) {
  .cv-circular-skills-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 12px;
  }
  .circular-skill-card {
    padding: 20px 12px;
  }
  .circular-chart-box {
    width: 88px;
    height: 88px;
  }
  .circular-chart {
    width: 88px;
    height: 88px;
  }
  .circular-percent {
    font-size: 1.05rem;
  }
}