/* ==========================================================================
   GENEL DEĞİŞKENLER VE TEMA SİSTEMİ (HSL Uyumlu)
   ========================================================================== */
:root {
  --primary-hue: 250; /* Varsayılan Mor Tonu. JavaScript ile dinamik değişebilir. */
  --primary: HSL(var(--primary-hue), 85%, 60%);
  --primary-hover: HSL(var(--primary-hue), 85%, 50%);
  --primary-light: HSLA(var(--primary-hue), 85%, 60%, 0.1);
  --primary-gradient: linear-gradient(135deg, HSL(var(--primary-hue), 85%, 60%), HSL(calc(var(--primary-hue) + 40), 90%, 55%));
  
  --bg-dark: #0b0c10;
  --bg-card: rgba(26, 27, 38, 0.6);
  --border-color: rgba(255, 255, 255, 0.08);
  --text-main: #f3f4f6;
  --text-muted: #9ca3af;
  
  --font-sans: 'Outfit', sans-serif;
  --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  --radius-sm: 8px;
  --radius-md: 16px;
  --radius-lg: 24px;
}

/* Reset */
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
  scroll-padding-top: 80px;
}

body {
  font-family: var(--font-sans);
  background-color: var(--bg-dark);
  color: var(--text-main);
  line-height: 1.6;
  overflow-x: hidden;
}

.container {
  width: 90%;
  max-width: 1200px;
  margin: 0 auto;
}

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

button, input, textarea, select {
  font-family: inherit;
}

/* ==========================================================================
   TIPOGRAFİ VE YARDIMCI SINIFLAR
   ========================================================================== */
.text-gradient {
  background: var(--primary-gradient);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.badge {
  display: inline-block;
  padding: 6px 12px;
  border-radius: 50px;
  font-size: 0.8rem;
  font-weight: 600;
  background: var(--primary-light);
  color: var(--primary);
  border: 1px solid rgba(var(--primary-hue), 85%, 60%, 0.2);
  margin-bottom: 1rem;
}

.badge-success {
  background: rgba(16, 185, 129, 0.1);
  color: #10b981;
  border: 1px solid rgba(16, 185, 129, 0.2);
}

.badge-warning {
  background: rgba(245, 158, 11, 0.1);
  color: #f59e0b;
  border: 1px solid rgba(245, 158, 11, 0.2);
}

.section-header {
  text-align: center;
  margin-bottom: 4rem;
}

.section-subtitle {
  font-size: 0.85rem;
  letter-spacing: 3px;
  color: var(--primary);
  text-transform: uppercase;
  font-weight: 700;
}

.section-title {
  font-size: 2.5rem;
  font-weight: 800;
  margin: 0.5rem 0;
}

.section-line {
  width: 60px;
  height: 4px;
  background: var(--primary-gradient);
  margin: 0.5rem auto;
  border-radius: 2px;
}

.mb-4 { margin-bottom: 1.5rem !important; }
.mt-4 { margin-top: 1.5rem !important; }
.font-bold { font-weight: 700; }
.text-right { text-align: right; }
.hidden { display: none !important; }

/* Glassmorphism Panel */
.glass {
  background: var(--bg-card);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  box-shadow: 0 8px 32px 0 rgba(0, 0, 0, 0.3);
}

/* ==========================================================================
   BUTONLAR
   ========================================================================== */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 12px 24px;
  border-radius: var(--radius-sm);
  font-weight: 600;
  cursor: pointer;
  border: none;
  transition: var(--transition);
}

.btn-sm {
  padding: 8px 16px;
  font-size: 0.85rem;
}

.btn-primary {
  background: var(--primary-gradient);
  color: #fff;
  box-shadow: 0 4px 15px rgba(100, 50, 200, 0.3);
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 6px 20px rgba(100, 50, 200, 0.5);
  opacity: 0.95;
}

.btn-secondary {
  background: rgba(255, 255, 255, 0.08);
  color: var(--text-main);
  border: 1px solid var(--border-color);
}

.btn-secondary:hover {
  background: rgba(255, 255, 255, 0.15);
  transform: translateY(-2px);
}

.btn-outline {
  background: transparent;
  color: var(--text-main);
  border: 2px solid var(--border-color);
}

.btn-outline:hover {
  border-color: var(--primary);
  background: var(--primary-light);
  color: var(--primary);
  transform: translateY(-2px);
}

.btn-danger {
  background: rgba(239, 68, 68, 0.15);
  color: #ef4444;
  border: 1px solid rgba(239, 68, 68, 0.3);
}

.btn-danger:hover {
  background: #ef4444;
  color: #fff;
}

.btn-block {
  display: flex;
  width: 100%;
}

/* ==========================================================================
   PORTFOLYO ANA NAVİGASYON (NAVBAR)
   ========================================================================== */
.navbar {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 80px;
  background: rgba(11, 12, 16, 0.85);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border-color);
  z-index: 100;
  display: flex;
  align-items: center;
}

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

.logo {
  font-size: 1.5rem;
  font-weight: 800;
  color: #fff;
  display: flex;
  align-items: center;
  gap: 8px;
}

.logo-dot {
  width: 10px;
  height: 10px;
  background: var(--primary-gradient);
  border-radius: 50%;
  display: inline-block;
}

.nav-menu {
  display: flex;
  gap: 2rem;
}

.nav-link {
  font-size: 0.95rem;
  color: var(--text-muted);
  font-weight: 500;
}

.nav-link:hover, .nav-link.active {
  color: var(--primary);
}

.nav-actions {
  display: flex;
  align-items: center;
  gap: 1rem;
}

.mobile-menu-toggle {
  display: none;
  background: transparent;
  border: none;
  color: #fff;
  font-size: 1.5rem;
  cursor: pointer;
}

/* Mobile Overlay Menu */
.mobile-overlay {
  position: fixed;
  top: 0;
  left: -100%;
  width: 100%;
  height: 100%;
  background: rgba(11, 12, 16, 0.98);
  z-index: 999;
  padding: 2rem;
  transition: 0.4s ease-in-out;
  display: flex;
  flex-direction: column;
}

.mobile-overlay.active {
  left: 0;
}

.mobile-menu-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 3rem;
}

.mobile-menu-close {
  background: transparent;
  border: none;
  color: #fff;
  font-size: 2rem;
  cursor: pointer;
}

.mobile-links {
  display: flex;
  flex-direction: column;
  gap: 2rem;
}

.mobile-link {
  font-size: 1.5rem;
  font-weight: 600;
  color: var(--text-muted);
}

.mobile-link:hover {
  color: var(--primary);
  padding-left: 8px;
}

.admin-link-mobile {
  border-top: 1px solid var(--border-color);
  padding-top: 2rem;
  color: var(--primary);
}

/* ==========================================================================
   KAHRAMAN (HERO) BÖLÜMÜ
   ========================================================================== */
.hero-section {
  padding: 160px 0 100px 0;
  position: relative;
}

.hero-container {
  display: grid;
  grid-template-columns: 1.2fr 0.8fr;
  align-items: center;
  gap: 4rem;
}

.hero-content {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
}

.hero-title {
  font-size: 3.8rem;
  line-height: 1.15;
  font-weight: 800;
  margin-bottom: 1rem;
  color: #fff;
}

.hero-subtitle {
  font-size: 1.8rem;
  font-weight: 600;
  color: var(--text-muted);
  margin-bottom: 1.5rem;
}

.hero-desc {
  font-size: 1.1rem;
  color: var(--text-muted);
  margin-bottom: 2.5rem;
  max-width: 600px;
}

.hero-buttons {
  display: flex;
  gap: 1.5rem;
  margin-bottom: 3rem;
}

.hero-socials {
  display: flex;
  gap: 1.5rem;
}

.social-icon {
  width: 45px;
  height: 45px;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid var(--border-color);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.2rem;
  color: var(--text-muted);
}

.social-icon:hover {
  background: var(--primary-light);
  color: var(--primary);
  border-color: var(--primary);
  transform: translateY(-5px);
}

/* Hero Görsel */
.hero-visual {
  position: relative;
  display: flex;
  justify-content: center;
}

.image-wrapper {
  position: relative;
  width: 320px;
  height: 320px;
}

.glow-bg {
  position: absolute;
  top: -10px;
  left: -10px;
  right: -10px;
  bottom: -10px;
  background: var(--primary-gradient);
  filter: blur(25px);
  opacity: 0.35;
  border-radius: 50%;
  z-index: 1;
}

.hero-avatar {
  position: relative;
  width: 100%;
  height: 100%;
  object-fit: cover;
  border-radius: 50%;
  border: 4px solid rgba(255, 255, 255, 0.08);
  z-index: 2;
}

/* ==========================================================================
   HAKKIMDA BÖLÜMÜ
   ========================================================================== */
.about-section {
  padding: 100px 0;
}

.about-grid {
  display: grid;
  grid-template-columns: 1.3fr 0.7fr;
  gap: 2.5rem;
}

.about-card {
  padding: 3rem;
  position: relative;
  font-size: 1.15rem;
  line-height: 1.8;
}

.about-icon {
  position: absolute;
  top: 1.5rem;
  right: 2rem;
  font-size: 4rem;
  color: rgba(255, 255, 255, 0.02);
}

.about-stats-grid {
  display: flex;
  flex-direction: column;
  gap: 1.25rem;
}

.stat-card {
  padding: 1.5rem;
  text-align: center;
}

.stat-num {
  font-size: 2.5rem;
  font-weight: 800;
}

.stat-label {
  font-size: 0.9rem;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 1px;
}

/* ==========================================================================
   YETENEKLER BÖLÜMÜ
   ========================================================================== */
.skills-section {
  padding: 100px 0;
}

.skills-categories {
  display: flex;
  justify-content: center;
  gap: 1rem;
  margin-bottom: 3rem;
}

.tab-btn {
  background: rgba(255, 255, 255, 0.03);
  border: 1px solid var(--border-color);
  color: var(--text-muted);
  padding: 10px 20px;
  border-radius: 50px;
  cursor: pointer;
  font-weight: 500;
  transition: var(--transition);
}

.tab-btn:hover, .tab-btn.active {
  background: var(--primary);
  color: #fff;
  border-color: var(--primary);
}

.skills-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
  gap: 1.5rem;
}

.skill-card {
  padding: 1.5rem;
}

.skill-info {
  display: flex;
  justify-content: space-between;
  margin-bottom: 0.75rem;
}

.skill-title {
  font-weight: 600;
}

.skill-percent {
  color: var(--primary);
  font-weight: 700;
}

.progress-bar-bg {
  width: 100%;
  height: 8px;
  background: rgba(255, 255, 255, 0.05);
  border-radius: 4px;
  overflow: hidden;
}

.progress-bar-fill {
  height: 100%;
  background: var(--primary-gradient);
  border-radius: 4px;
  width: 0%; /* JS ile doldurulacak */
  transition: width 1s ease-out;
}

/* ==========================================================================
   İŞ DENEYİMLERİ BÖLÜMÜ
   ========================================================================== */
.experience-section {
  padding: 100px 0;
}

.timeline {
  position: relative;
  max-width: 800px;
  margin: 0 auto;
  padding: 2rem 0;
}

.timeline::after {
  content: '';
  position: absolute;
  width: 2px;
  background: var(--border-color);
  top: 0;
  bottom: 0;
  left: 20px;
}

.timeline-item {
  position: relative;
  padding-left: 60px;
  margin-bottom: 3.5rem;
}

.timeline-dot {
  position: absolute;
  width: 16px;
  height: 16px;
  background: var(--primary);
  border: 4px solid var(--bg-dark);
  box-shadow: 0 0 0 4px var(--primary-light);
  border-radius: 50%;
  left: 13px;
  top: 6px;
  z-index: 2;
}

.timeline-card {
  padding: 2rem;
}

.timeline-header {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  flex-wrap: wrap;
  gap: 0.5rem;
  margin-bottom: 1rem;
}

.timeline-role {
  font-size: 1.25rem;
  font-weight: 700;
  color: #fff;
}

.timeline-company {
  color: var(--primary);
  font-weight: 600;
}

.timeline-period {
  font-size: 0.85rem;
  color: var(--text-muted);
  background: rgba(255, 255, 255, 0.04);
  padding: 4px 10px;
  border-radius: 4px;
  border: 1px solid var(--border-color);
}

.timeline-desc {
  color: var(--text-muted);
  font-size: 0.95rem;
}

/* ==========================================================================
   PROJELER BÖLÜMÜ
   ========================================================================== */
.projects-section {
  padding: 100px 0;
}

.projects-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(350px, 1fr));
  gap: 2rem;
}

.project-card {
  overflow: hidden;
  display: flex;
  flex-direction: column;
}

.project-image-box {
  width: 100%;
  height: 220px;
  overflow: hidden;
  position: relative;
  border-bottom: 1px solid var(--border-color);
}

.project-image-box img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.5s ease;
}

.project-card:hover .project-image-box img {
  transform: scale(1.1);
}

.project-info-box {
  padding: 1.5rem;
  display: flex;
  flex-direction: column;
  flex-grow: 1;
}

.project-title {
  font-size: 1.3rem;
  font-weight: 700;
  margin-bottom: 0.75rem;
  color: #fff;
}

.project-desc {
  font-size: 0.92rem;
  color: var(--text-muted);
  margin-bottom: 1.5rem;
  flex-grow: 1;
}

.project-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  margin-bottom: 1.5rem;
}

.project-tag {
  font-size: 0.75rem;
  background: rgba(255, 255, 255, 0.05);
  color: var(--text-muted);
  padding: 4px 8px;
  border-radius: 4px;
  border: 1px solid var(--border-color);
}

.project-links {
  display: flex;
  gap: 1rem;
}

.project-link {
  font-size: 0.85rem;
  font-weight: 600;
  display: inline-flex;
  align-items: center;
  gap: 6px;
}

.project-link:hover {
  color: var(--primary);
}

/* ==========================================================================
   İLETİŞİM BÖLÜMÜ & FORMLAR
   ========================================================================== */
.contact-section {
  padding: 100px 0;
}

.contact-grid {
  display: grid;
  grid-template-columns: 0.8fr 1.2fr;
  gap: 3rem;
}

.contact-info-cards {
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
}

.contact-card-item {
  padding: 1.5rem;
  display: flex;
  align-items: center;
  gap: 1.5rem;
}

.icon-box {
  width: 50px;
  height: 50px;
  background: var(--primary-light);
  color: var(--primary);
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.4rem;
}

.info-content h4 {
  font-weight: 700;
  font-size: 1.05rem;
  margin-bottom: 0.25rem;
}

.info-content p {
  color: var(--text-muted);
  font-size: 0.95rem;
}

.contact-form-box {
  padding: 2.5rem;
}

.form-group {
  margin-bottom: 1.25rem;
}

.form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1.25rem;
  margin-bottom: 0;
}

label {
  display: block;
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--text-muted);
  margin-bottom: 0.5rem;
}

input, textarea, select {
  width: 100%;
  padding: 12px 16px;
  background: rgba(255, 255, 255, 0.03);
  border: 1px solid var(--border-color);
  color: var(--text-main);
  border-radius: var(--radius-sm);
  font-size: 0.95rem;
  outline: none;
  transition: var(--transition);
}

input:focus, textarea:focus, select:focus {
  border-color: var(--primary);
  background: rgba(255, 255, 255, 0.06);
  box-shadow: 0 0 0 3px var(--primary-light);
}

.form-status {
  margin-top: 1rem;
  padding: 10px;
  border-radius: var(--radius-sm);
  font-size: 0.9rem;
  text-align: center;
  display: none;
}

.form-status.success {
  display: block;
  background: rgba(16, 185, 129, 0.15);
  color: #10b981;
}

/* ==========================================================================
   ALT BİLGİ (FOOTER) & FLOATING BUTONLAR
   ========================================================================== */
.footer {
  padding: 2rem 0;
  border-top: 1px solid var(--border-color);
  text-align: center;
  color: var(--text-muted);
  font-size: 0.9rem;
}

.footer-container {
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 1rem;
}

.admin-float {
  position: fixed;
  bottom: 30px;
  right: 30px;
  width: 60px;
  height: 60px;
  background: var(--primary-gradient);
  border-radius: 50%;
  color: #fff;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.5rem;
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.4);
  z-index: 99;
  cursor: pointer;
}

.admin-float:hover {
  transform: scale(1.1) rotate(15deg);
}

/* ==========================================================================
   YÖNETİCİ (ADMIN) PANELİ SPESİFİK STİLLERİ
   ========================================================================== */
.admin-body {
  background-color: #0f1015;
}

.admin-wrapper {
  margin-top: 110px;
  margin-bottom: 60px;
  display: grid;
  grid-template-columns: 0.6fr 1.4fr;
  gap: 2rem;
  align-items: start;
}

.admin-sidebar {
  padding: 2rem;
  display: flex;
  flex-direction: column;
  gap: 2rem;
}

.admin-user-info {
  text-align: center;
  border-bottom: 1px solid var(--border-color);
  padding-bottom: 1.5rem;
}

.admin-sidebar-avatar {
  width: 80px;
  height: 80px;
  border-radius: 50%;
  border: 3px solid var(--primary);
  margin-bottom: 0.75rem;
  object-fit: cover;
}

.admin-sidebar-avatar + h4 {
  font-weight: 700;
  font-size: 1.1rem;
}

.admin-sidebar-avatar + h4 + p {
  font-size: 0.8rem;
  color: var(--text-muted);
}

.admin-tabs-menu {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

.admin-tab-btn {
  background: transparent;
  border: none;
  color: var(--text-muted);
  padding: 12px 16px;
  border-radius: var(--radius-sm);
  text-align: left;
  font-weight: 600;
  cursor: pointer;
  display: flex;
  align-items: center;
  gap: 10px;
  transition: var(--transition);
}

.admin-tab-btn:hover {
  background: rgba(255, 255, 255, 0.03);
  color: var(--text-main);
}

.admin-tab-btn.active {
  background: var(--primary-light);
  color: var(--primary);
}

.admin-sidebar-footer {
  border-top: 1px solid var(--border-color);
  padding-top: 1.5rem;
}

.sidebar-help-text {
  font-size: 0.75rem;
  color: var(--text-muted);
  margin: 1rem 0 0.5rem 0;
  line-height: 1.4;
}

/* Admin İçerik Paneli */
.admin-main-content {
  padding: 2.5rem;
}

.admin-tab-content {
  display: none;
}

.admin-tab-content.active {
  display: block;
}

.tab-title {
  font-size: 1.6rem;
  font-weight: 800;
  color: #fff;
}

.tab-header-row {
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.sub-section-title {
  font-size: 1.15rem;
  font-weight: 700;
  color: #fff;
  border-left: 3px solid var(--primary);
  padding-left: 10px;
  margin-bottom: 1.25rem;
}

/* Admin Formları */
.form-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1.25rem;
}

/* Renk Düzenleyici (Accent Hue Slider) */
.hue-slider {
  -webkit-appearance: none;
  appearance: none;
  width: 100%;
  height: 8px;
  border-radius: 4px;
  outline: none;
  background: linear-gradient(to right, #ff0000 0%, #ffff00 17%, #00ff00 33%, #00ffff 50%, #0000ff 67%, #ff00ff 83%, #ff0000 100%);
  margin-top: 8px;
}

.hue-slider::-webkit-slider-thumb {
  -webkit-appearance: none;
  appearance: none;
  width: 20px;
  height: 20px;
  border-radius: 50%;
  background: #ffffff;
  border: 2px solid #000000;
  cursor: pointer;
  box-shadow: 0 0 5px rgba(0, 0, 0, 0.5);
}

.hue-preview-bar {
  height: 4px;
  width: 100%;
  margin-top: 10px;
  border-radius: 2px;
  background: var(--primary);
}

/* Admin Tabloları */
.table-container {
  overflow-x: auto;
}

.admin-table {
  width: 100%;
  border-collapse: collapse;
  margin-top: 1rem;
}

.admin-table th, .admin-table td {
  padding: 14px 16px;
  text-align: left;
  border-bottom: 1px solid var(--border-color);
}

.admin-table th {
  font-weight: 700;
  color: var(--text-muted);
  font-size: 0.85rem;
  text-transform: uppercase;
}

.admin-table tbody tr:hover {
  background: rgba(255, 255, 255, 0.02);
}

.admin-table td {
  font-size: 0.95rem;
}

/* ==========================================================================
   MODAL PANEL (POPUP FORMLARI)
   ========================================================================= */
.modal-overlay {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: rgba(0, 0, 0, 0.7);
  backdrop-filter: blur(8px);
  z-index: 1000;
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.3s ease;
}

.modal-overlay.active {
  opacity: 1;
  pointer-events: auto;
}

.modal-card {
  width: 90%;
  max-width: 550px;
  padding: 2rem;
  transform: translateY(-50px);
  transition: transform 0.3s ease;
}

.modal-overlay.active .modal-card {
  transform: translateY(0);
}

.modal-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 1.5rem;
}

.modal-header h4 {
  font-size: 1.3rem;
  font-weight: 800;
}

.modal-close-btn {
  background: transparent;
  border: none;
  color: var(--text-muted);
  font-size: 1.3rem;
  cursor: pointer;
}

.modal-close-btn:hover {
  color: var(--text-main);
}

.modal-footer {
  display: flex;
  justify-content: flex-end;
  gap: 1rem;
  margin-top: 2rem;
}

/* ==========================================================================
   TOAST (UFAK BİLDİRİM) SİSTEMİ
   ========================================================================== */
.toast-container {
  position: fixed;
  bottom: 20px;
  left: 20px;
  z-index: 1010;
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.toast {
  padding: 12px 24px;
  background: #1e1b4b;
  border-left: 4px solid var(--primary);
  border-radius: var(--radius-sm);
  color: var(--text-main);
  box-shadow: 0 4px 15px rgba(0,0,0,0.5);
  font-weight: 500;
  animation: slideIn 0.3s ease forwards;
}

.toast.toast-success {
  background: #064e3b;
  border-left-color: #10b981;
}

.toast.toast-error {
  background: #7f1d1d;
  border-left-color: #ef4444;
}

@keyframes slideIn {
  from {
    transform: translateX(-100%);
    opacity: 0;
  }
  to {
    transform: translateX(0);
    opacity: 1;
  }
}

/* ==========================================================================
   EKRAN DUYARLILIK AYARLARI (RESPONSIVE)
   ========================================================================== */
@media (max-width: 992px) {
  .hero-container {
    grid-template-columns: 1fr;
    text-align: center;
    gap: 3rem;
  }
  
  .hero-content {
    align-items: center;
  }
  
  .hero-visual {
    order: -1;
  }
  
  .hero-buttons {
    justify-content: center;
  }

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

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

  .admin-wrapper {
    grid-template-columns: 1fr;
  }
  
  .admin-sidebar {
    padding: 1.5rem;
  }
}

@media (max-width: 768px) {
  .hero-title {
    font-size: 2.8rem;
  }
  
  .nav-menu {
    display: none;
  }
  
  .mobile-menu-toggle {
    display: block;
  }
  
  .form-row, .form-grid {
    grid-template-columns: 1fr;
    gap: 0;
  }
  
  .timeline::after {
    left: 10px;
  }
  
  .timeline-item {
    padding-left: 40px;
  }
  
  .timeline-dot {
    left: 3px;
  }
  
  .timeline-header {
    flex-direction: column;
    align-items: flex-start;
  }
  
  .timeline-period {
    margin-top: 5px;
  }
}