/* ==========================================================================
   PORTFOLYO & CV - 2017-2020 KLASİK GELİŞTİRİCİ TEMASI
   Renk Paleti: Siyah, Koyu Gri, Yeşil, Kapalı Yeşil, Soluk Yeşil, 
                Metalik Gri, Lacivert, Parlak Kırmızı, #FFFF00
   ========================================================================== */

:root {
  /* Ana Renkler (Siyah / Koyu Gri) */
  --bg-main: #0a0d0b;
  --bg-card: #121814;
  --bg-card-hover: #18221b;
  --bg-darker: #060807;
  --border-color: #24352b;
  --border-focus: #52b788;
  
  /* Yeşil ve Tonları */
  --green-dark: #1b4332;
  --green-mid: #2d6a4f;
  --green-bright: #52b788;
  --green-pale: #74c69d;
  --green-light: #95d5b2;

  /* İkincil İzin Verilen Vurgu Renkleri */
  --metallic-gray: #94a3b8;
  --metallic-dark: #64748b;
  --navy: #0f172a;
  --navy-light: #1e293b;
  --red-bright: #ff3333;
  --yellow-accent: #ffff00;

  /* Metin Renkleri */
  --text-main: #d8e2dc;
  --text-muted: #8a9a90;
  --text-heading: #95d5b2;

  /* Tipografi ve Düzen */
  --font-mono: 'Consolas', 'Courier New', monospace;
  --font-main: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
  --container-width: 1120px;
  --transition-speed: 0.2s;
}

/* Sıfırlama ve Temel Ayarlar */
* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  scroll-behavior: smooth;
}

body {
  background-color: var(--bg-main);
  color: var(--text-main);
  font-family: var(--font-main);
  font-size: 15px;
  line-height: 1.6;
  min-height: 100vh;
}

a {
  color: var(--green-pale);
  text-decoration: none;
  transition: color var(--transition-speed);
}

a:hover {
  color: var(--yellow-accent);
  text-decoration: underline;
}

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

/* Konteyner */
.container {
  width: 100%;
  max-width: var(--container-width);
  margin: 0 auto;
  padding: 0 20px;
}

/* ==========================================================================
   ÜST MENÜ (NAVBAR)
   ========================================================================== */
.navbar {
  position: sticky;
  top: 0;
  z-index: 1000;
  background-color: var(--bg-card);
  border-bottom: 2px solid var(--border-color);
  padding: 12px 0;
}

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

.nav-brand {
  display: flex;
  align-items: center;
  gap: 10px;
  font-family: var(--font-mono);
  font-size: 1.15rem;
  font-weight: bold;
  color: var(--green-bright);
}

.brand-dot {
  width: 10px;
  height: 10px;
  background-color: var(--green-bright);
  border-radius: 2px;
}

.nav-links {
  display: flex;
  list-style: none;
  gap: 18px;
  align-items: center;
}

.nav-links li a {
  font-family: var(--font-mono);
  font-size: 0.88rem;
  color: var(--text-muted);
  padding: 5px 8px;
  border-bottom: 2px solid transparent;
}

.nav-links li a:hover,
.nav-links li a.active {
  color: var(--green-pale);
  border-bottom: 2px solid var(--green-bright);
  text-decoration: none;
}

.nav-toggle {
  display: none;
  background: var(--bg-darker);
  border: 1px solid var(--border-color);
  color: var(--green-bright);
  padding: 6px 12px;
  font-family: var(--font-mono);
  cursor: pointer;
  border-radius: 3px;
}

/* Dil Değiştirici (Language Switcher) */
.lang-switcher {
  display: inline-flex;
  align-items: center;
  border: 1px solid var(--border-color);
  background-color: var(--bg-darker);
  border-radius: 3px;
  overflow: hidden;
}

.lang-btn {
  background: transparent;
  border: none;
  color: var(--text-muted);
  font-family: var(--font-mono);
  font-size: 0.82rem;
  font-weight: bold;
  padding: 5px 10px;
  cursor: pointer;
  transition: all var(--transition-speed);
}

.lang-btn:hover {
  color: var(--yellow-accent);
  background-color: var(--bg-card);
}

.lang-btn.active {
  background-color: var(--green-mid);
  color: #ffffff;
  border-bottom: 2px solid var(--yellow-accent);
}


/* ==========================================================================
   GENEL BÖLÜM STİLLERİ
   ========================================================================== */
section {
  padding: 55px 0;
  border-bottom: 1px solid var(--border-color);
}

.section-header {
  margin-bottom: 30px;
  border-left: 4px solid var(--green-bright);
  padding-left: 14px;
}

.section-tag {
  font-family: var(--font-mono);
  font-size: 0.85rem;
  color: var(--metallic-gray);
  margin-bottom: 4px;
}

.section-title {
  font-size: 1.6rem;
  color: var(--text-heading);
  font-weight: 700;
  letter-spacing: -0.5px;
}

.section-subtitle {
  color: var(--text-muted);
  font-size: 0.95rem;
  margin-top: 5px;
}

/* Butonlar */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  font-family: var(--font-mono);
  font-size: 0.9rem;
  font-weight: bold;
  padding: 9px 18px;
  border-radius: 3px;
  cursor: pointer;
  transition: all var(--transition-speed);
  text-decoration: none;
}

.btn-primary {
  background-color: var(--green-mid);
  color: #ffffff;
  border: 1px solid var(--green-bright);
}

.btn-primary:hover {
  background-color: var(--green-bright);
  color: var(--bg-darker);
  text-decoration: none;
}

.btn-secondary {
  background-color: var(--bg-darker);
  color: var(--green-pale);
  border: 1px solid var(--border-color);
}

.btn-secondary:hover {
  border-color: var(--green-bright);
  color: var(--yellow-accent);
  text-decoration: none;
}

.btn-sm {
  padding: 5px 10px;
  font-size: 0.8rem;
}

/* Rozetler (Badges) */
.badge {
  display: inline-block;
  font-family: var(--font-mono);
  font-size: 0.75rem;
  padding: 3px 8px;
  border-radius: 3px;
  font-weight: 600;
  margin-right: 6px;
  margin-bottom: 6px;
}

.badge-green {
  background-color: var(--green-dark);
  color: var(--green-light);
  border: 1px solid var(--green-mid);
}

.badge-gray {
  background-color: var(--navy-light);
  color: var(--metallic-gray);
  border: 1px solid var(--metallic-dark);
}

.badge-yellow {
  background-color: var(--bg-darker);
  color: var(--yellow-accent);
  border: 1px solid var(--yellow-accent);
}

.badge-red {
  background-color: var(--bg-darker);
  color: var(--red-bright);
  border: 1px solid var(--red-bright);
}

/* ==========================================================================
   1. HERO BÖLÜMÜ
   ========================================================================== */
.hero-section {
  padding: 50px 0 45px 0;
  background-color: var(--bg-darker);
}

.hero-grid {
  display: grid;
  grid-template-columns: 180px 1fr;
  gap: 30px;
  align-items: center;
}

.hero-avatar {
  border: 2px solid var(--green-mid);
  padding: 4px;
  background-color: var(--bg-card);
  border-radius: 6px;
  text-align: center;
}

.hero-avatar img {
  width: 100%;
  border-radius: 4px;
}

.hero-content h1 {
  font-size: 2.1rem;
  color: var(--green-light);
  margin-bottom: 6px;
  font-family: var(--font-mono);
}

.hero-title {
  font-size: 1.1rem;
  color: var(--metallic-gray);
  margin-bottom: 14px;
}

.hero-bio {
  color: var(--text-muted);
  font-size: 0.98rem;
  margin-bottom: 20px;
  max-width: 800px;
}

.hero-tags {
  margin-bottom: 22px;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

/* ==========================================================================
   ORTAK KART & IZGARA YAPISI
   ========================================================================== */
.card-grid-2 {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 22px;
}

.card-grid-3 {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
}

.card {
  background-color: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: 4px;
  padding: 20px;
  transition: transform var(--transition-speed), border-color var(--transition-speed);
}

.card:hover {
  border-color: var(--green-mid);
  background-color: var(--bg-card-hover);
}

.card-title {
  font-size: 1.15rem;
  color: var(--green-pale);
  margin-bottom: 10px;
  font-family: var(--font-mono);
}

/* ==========================================================================
   GÖRSEL GALERİ & YER TUTUCU ALANLARI
   ========================================================================== */
.media-slot {
  position: relative;
  background-color: var(--bg-darker);
  border: 1px solid var(--border-color);
  border-radius: 3px;
  overflow: hidden;
  margin-bottom: 15px;
  cursor: pointer;
}

.media-slot img {
  width: 100%;
  height: 220px;
  object-fit: cover;
  transition: transform 0.25s ease;
}

.media-slot:hover img {
  transform: scale(1.02);
}

.media-badge {
  position: absolute;
  top: 8px;
  left: 8px;
  background-color: rgba(10, 13, 11, 0.88);
  border: 1px solid var(--green-mid);
  color: var(--green-pale);
  font-size: 0.72rem;
  font-family: var(--font-mono);
  padding: 2px 7px;
  border-radius: 2px;
}

.media-overlay {
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  background: linear-gradient(transparent, rgba(6, 8, 7, 0.9));
  padding: 10px;
  color: var(--metallic-gray);
  font-size: 0.78rem;
  font-family: var(--font-mono);
  text-align: right;
}

/* ==========================================================================
   2. & 3. 2D ART & 3D MODELING SECTIONS
   ========================================================================== */
.art-showcase-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
  gap: 20px;
}

.art-card {
  background-color: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: 4px;
  padding: 16px;
}

.art-card h4 {
  color: var(--green-pale);
  font-size: 1.05rem;
  margin-bottom: 8px;
  font-family: var(--font-mono);
}

.art-card p {
  font-size: 0.9rem;
  color: var(--text-muted);
  margin-bottom: 12px;
}

.tools-used {
  font-family: var(--font-mono);
  font-size: 0.82rem;
  color: var(--metallic-gray);
  border-top: 1px dashed var(--border-color);
  padding-top: 10px;
  margin-top: 10px;
}

.tools-used strong {
  color: var(--green-bright);
}

/* Piksel Sanatı ve Sprite Izgarası */
.pixelated {
  image-rendering: pixelated;
  image-rendering: -moz-crisp-edges;
  image-rendering: crisp-edges;
}

.media-contain img {
  object-fit: contain !important;
  background-color: #060807;
}

.sprite-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(68px, 1fr));
  gap: 8px;
  background: var(--bg-darker);
  border: 1px solid var(--border-color);
  padding: 10px;
  border-radius: 4px;
  margin-top: 10px;
}

.sprite-item {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  padding: 6px 4px;
  border-radius: 3px;
  transition: all var(--transition-speed);
  cursor: pointer;
}

.sprite-item:hover {
  border-color: var(--green-bright);
  background: var(--bg-card-hover);
  transform: translateY(-2px);
}

.sprite-item img {
  width: 32px;
  height: 32px;
  object-fit: contain;
  image-rendering: pixelated;
}

.sprite-name {
  font-family: var(--font-mono);
  font-size: 0.65rem;
  color: var(--text-muted);
  margin-top: 4px;
  text-align: center;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  width: 100%;
}

/* Oyun Güncelleme & DevLog Kutusu */
.devlog-box {
  background-color: var(--bg-darker);
  border: 1px solid var(--border-color);
  border-left: 3px solid var(--yellow-accent);
  padding: 14px 16px;
  margin: 14px 0;
  font-size: 0.88rem;
  color: var(--text-muted);
  font-family: var(--font-mono);
  line-height: 1.6;
  border-radius: 3px;
}

.devlog-title {
  color: var(--yellow-accent);
  font-weight: bold;
  font-size: 0.88rem;
  margin-bottom: 8px;
  display: flex;
  align-items: center;
  gap: 6px;
}

.project-featured-card {
  grid-column: 1 / -1;
  background-color: var(--bg-card);
  border: 2px solid var(--green-mid);
}

.project-featured-card:hover {
  border-color: var(--green-bright);
}


/* ==========================================================================
   4. SERVER MANAGEMENT & SUPPORT
   ========================================================================== */
.server-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 22px;
}

.server-card {
  background-color: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: 4px;
  padding: 22px;
}

.server-header {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  margin-bottom: 14px;
}

.server-badge-exp {
  font-family: var(--font-mono);
  font-size: 0.8rem;
  background-color: var(--green-dark);
  color: var(--yellow-accent);
  padding: 3px 8px;
  border: 1px solid var(--green-bright);
  border-radius: 3px;
}

.server-list {
  list-style: none;
  margin-top: 12px;
}

.server-list li {
  position: relative;
  padding-left: 18px;
  margin-bottom: 8px;
  font-size: 0.92rem;
  color: var(--text-muted);
}

.server-list li::before {
  content: '>';
  position: absolute;
  left: 0;
  color: var(--green-bright);
  font-family: var(--font-mono);
  font-weight: bold;
}

/* ==========================================================================
   5. GAME DEV & AI / TECH PROJECTS
   ========================================================================== */
.project-card {
  background-color: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: 4px;
  padding: 20px;
}

.project-card-header {
  margin-bottom: 12px;
}

.project-desc {
  font-size: 0.92rem;
  color: var(--text-muted);
  margin-bottom: 15px;
}

.tech-stack-list {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  margin-top: 12px;
}

/* ==========================================================================
   6. AUDIO & SOUND DESIGN (CUSTOM AUDIO PLAYER WIDGET)
   ========================================================================== */
.audio-player-container {
  background-color: var(--bg-card);
  border: 2px solid var(--green-dark);
  border-radius: 4px;
  padding: 24px;
  box-shadow: inset 0 0 15px rgba(0, 0, 0, 0.6);
}

.player-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  border-bottom: 1px solid var(--border-color);
  padding-bottom: 12px;
  margin-bottom: 18px;
}

.player-title {
  font-family: var(--font-mono);
  color: var(--green-bright);
  font-size: 1.1rem;
}

.player-now-playing {
  background-color: var(--bg-darker);
  border: 1px solid var(--border-color);
  padding: 12px 16px;
  border-radius: 3px;
  margin-bottom: 16px;
}

.track-info {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 8px;
}

.track-title {
  font-family: var(--font-mono);
  font-size: 1.05rem;
  color: var(--yellow-accent);
  font-weight: bold;
}

.track-meta {
  font-family: var(--font-mono);
  font-size: 0.8rem;
  color: var(--metallic-gray);
}

/* İlerleme Çubuğu */
.progress-bar-container {
  width: 100%;
  height: 8px;
  background-color: var(--navy);
  border: 1px solid var(--border-color);
  border-radius: 2px;
  cursor: pointer;
  position: relative;
  margin-bottom: 6px;
}

.progress-bar {
  width: 0%;
  height: 100%;
  background-color: var(--green-bright);
  border-radius: 1px;
}

.time-display {
  display: flex;
  justify-content: space-between;
  font-family: var(--font-mono);
  font-size: 0.78rem;
  color: var(--metallic-gray);
}

/* Kontrol Tuşları */
.player-controls {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 15px;
  margin-top: 15px;
}

.playback-buttons {
  display: flex;
  align-items: center;
  gap: 10px;
}

.player-btn {
  background-color: var(--bg-darker);
  border: 1px solid var(--green-mid);
  color: var(--green-pale);
  font-family: var(--font-mono);
  font-size: 0.95rem;
  font-weight: bold;
  padding: 7px 14px;
  border-radius: 3px;
  cursor: pointer;
  transition: all var(--transition-speed);
}

.player-btn:hover {
  background-color: var(--green-dark);
  color: var(--yellow-accent);
  border-color: var(--green-bright);
}

.player-btn-play {
  background-color: var(--green-mid);
  color: #ffffff;
  padding: 8px 20px;
  font-size: 1.05rem;
}

.player-btn-play:hover {
  background-color: var(--green-bright);
  color: var(--bg-darker);
}

.volume-control {
  display: flex;
  align-items: center;
  gap: 10px;
  font-family: var(--font-mono);
  font-size: 0.85rem;
  color: var(--metallic-gray);
}

.volume-slider {
  accent-color: var(--green-bright);
  cursor: pointer;
}

/* Şarkı Listesi (Playlist) */
.playlist-container {
  margin-top: 20px;
  border-top: 1px solid var(--border-color);
  padding-top: 15px;
}

.playlist-title {
  font-family: var(--font-mono);
  font-size: 0.88rem;
  color: var(--metallic-gray);
  margin-bottom: 10px;
}

.playlist {
  list-style: none;
}

.playlist-item {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 9px 12px;
  border: 1px solid var(--border-color);
  background-color: var(--bg-darker);
  margin-bottom: 6px;
  border-radius: 3px;
  cursor: pointer;
  transition: all var(--transition-speed);
}

.playlist-item:hover {
  background-color: var(--bg-card);
  border-color: var(--green-mid);
}

.playlist-item.active {
  border-color: var(--green-bright);
  background-color: var(--green-dark);
}

.playlist-item.active .playlist-item-title {
  color: var(--yellow-accent);
  font-weight: bold;
}

.playlist-item-title {
  font-family: var(--font-mono);
  font-size: 0.88rem;
  color: var(--text-main);
}

.playlist-item-dur {
  font-family: var(--font-mono);
  font-size: 0.8rem;
  color: var(--metallic-gray);
}

.audio-guide-note {
  margin-top: 15px;
  font-size: 0.82rem;
  color: var(--text-muted);
  font-family: var(--font-mono);
  background-color: var(--bg-darker);
  padding: 10px;
  border-left: 3px solid var(--yellow-accent);
}

/* ==========================================================================
   7. FOOTER / CONTACT & MILITARY STATUS
   ========================================================================== */
.footer-section {
  background-color: var(--bg-darker);
  padding: 45px 0 25px 0;
}

.contact-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 16px;
  margin-bottom: 30px;
}

.contact-card {
  background-color: var(--bg-card);
  border: 1px solid var(--border-color);
  padding: 16px;
  border-radius: 4px;
  display: flex;
  align-items: center;
  gap: 12px;
}

.contact-icon {
  font-family: var(--font-mono);
  font-size: 1.2rem;
  color: var(--green-bright);
  background-color: var(--bg-darker);
  width: 40px;
  height: 40px;
  display: flex;
  align-items: center;
  justify-content: center;
  border: 1px solid var(--border-color);
  border-radius: 3px;
}

.contact-info strong {
  display: block;
  font-family: var(--font-mono);
  font-size: 0.88rem;
  color: var(--green-pale);
}

.contact-info span {
  font-size: 0.85rem;
  color: var(--text-muted);
}

.military-status-banner {
  background-color: var(--bg-card);
  border: 1px solid var(--green-mid);
  border-left: 5px solid var(--yellow-accent);
  padding: 16px 20px;
  border-radius: 4px;
  margin-bottom: 30px;
}

.military-status-title {
  font-family: var(--font-mono);
  color: var(--yellow-accent);
  font-size: 0.95rem;
  font-weight: bold;
  margin-bottom: 5px;
}

.military-status-desc {
  font-size: 0.9rem;
  color: var(--text-muted);
}

.footer-bottom {
  border-top: 1px solid var(--border-color);
  padding-top: 20px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-family: var(--font-mono);
  font-size: 0.82rem;
  color: var(--metallic-gray);
  flex-wrap: wrap;
  gap: 10px;
}

/* ==========================================================================
   LIGHTBOX MODAL (GÖRSEL BÜYÜTME)
   ========================================================================== */
.lightbox-modal {
  display: none;
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background-color: rgba(6, 8, 7, 0.92);
  z-index: 2000;
  justify-content: center;
  align-items: center;
  padding: 20px;
}

.lightbox-modal.active {
  display: flex;
}

.lightbox-content {
  position: relative;
  max-width: 900px;
  width: 100%;
  background-color: var(--bg-card);
  border: 2px solid var(--green-bright);
  border-radius: 4px;
  padding: 12px;
}

.lightbox-img {
  width: 100%;
  max-height: 75vh;
  object-fit: contain;
  border-radius: 2px;
}

.lightbox-caption {
  margin-top: 10px;
  font-family: var(--font-mono);
  font-size: 0.9rem;
  color: var(--green-light);
  text-align: center;
}

.lightbox-close {
  position: absolute;
  top: -15px;
  right: -15px;
  background-color: var(--red-bright);
  color: #ffffff;
  border: 2px solid #ffffff;
  width: 32px;
  height: 32px;
  border-radius: 50%;
  font-family: var(--font-mono);
  font-weight: bold;
  font-size: 1.1rem;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
}

/* ==========================================================================
   DUYARLILIK (RESPONSIVE) AYARLARI
   ========================================================================== */
@media (max-width: 820px) {
  .hero-grid {
    grid-template-columns: 1fr;
    text-align: center;
  }
  
  .hero-avatar {
    max-width: 140px;
    margin: 0 auto;
  }

  .hero-actions {
    justify-content: center;
  }

  .card-grid-2,
  .server-grid {
    grid-template-columns: 1fr;
  }

  .nav-toggle {
    display: block;
  }

  .nav-links {
    display: none;
    position: absolute;
    top: 100%;
    left: 0;
    width: 100%;
    background-color: var(--bg-card);
    flex-direction: column;
    padding: 15px 20px;
    border-bottom: 2px solid var(--border-color);
  }

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