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

/* sayfanın yavaş şekilde kaymasına yarar */
html {
  scroll-behavior: smooth;
}



body {
  font-family: system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  background: var(--bg-color);
  color: var(--text-color);
  line-height: 1.6;
  transition: background-color 0.25s ease, color 0.25s ease;
  -webkit-font-smoothing: antialiased;
}

.header,
.project-card,
.skill-badge,
.btn {
  transition: background-color 0.25s ease,
              color 0.25s ease,
              border-color 0.25s ease,
              box-shadow 0.2s ease,
              transform 0.15s ease;
}

/* ========== Tema Değişkenleri ========== */
:root {
  --bg-color: #f9fafb;
  --bg-elevated: #ffffff;
  --text-color: #0f172a;
  --muted-text: #6b7280;
  --accent: #2563eb;
  --border-color: #e5e7eb;
  --shadow-soft: 0 10px 30px rgba(15, 23, 42, 0.08);
}

html[data-theme="dark"] {
  --bg-color: #020617;
  --bg-elevated: #020617;
  --text-color: #e5e7eb;
  --muted-text: #9ca3af;
  --accent: #38bdf8;
  --border-color: #1f2937;
  --shadow-soft: 0 10px 30px rgba(15, 23, 42, 0.7);
}

/* ========== Genel Layout ========== */
.container {
  width: min(1100px, 100% - 2rem);
  margin: 0 auto;
}

.section {
  padding: 4rem 0;
}

h1, h2, h3 {
  color: var(--text-color);
}

p {
  color: var(--muted-text);
}

/* ========== Header / Navbar ========== */
.header {
  position: sticky;
  top: 0;
  z-index: 10;
  background: rgba(249, 250, 251, 0.9);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border-color);
}

html[data-theme="dark"] .header {
  background: rgba(2, 6, 23, 0.9);
}

.nav-container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 64px;
}
.nav a.active {
  color: var(--accent);
  font-weight: 600;
}


.logo {
  font-weight: 700;
  letter-spacing: 0.05em;
}

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

.nav a {
  text-decoration: none;
  font-size: 0.95rem;
  color: var(--muted-text);
  transition: color 0.2s ease;
}

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

/* Tema butonu */
#theme-toggle {
  border: 1px solid var(--border-color);
  background: var(--bg-elevated);
  border-radius: 999px;
  padding: 0.35rem 0.7rem;
  cursor: pointer;
  font-size: 0.9rem;
}

/* ========== Hero ========== */
.hero {
  padding: 5rem 0 3rem;
}

.hero .container {
  background: linear-gradient(
    135deg,
    rgba(37, 99, 235, 0.08),
    rgba(56, 189, 248, 0.05)
  );
  border-radius: 1.75rem;
  border: 1px solid var(--border-color);
  box-shadow: var(--shadow-soft);
}

html[data-theme="dark"] .hero .container {
  background: radial-gradient(
    circle at top left,
    rgba(56, 189, 248, 0.2),
    rgba(15, 23, 42, 0.9)
  );
}

.hero-content {
  min-height: calc(100vh - 96px);
  display: grid;
  grid-template-columns: minmax(0, 2fr) minmax(0, 1.4fr);
  gap: 2rem;
  align-items: center;
}

.hero-left {
  padding-right: 1rem;
}

.hero-right {
  display: flex;
  justify-content: center;
}

.hero-avatar-wrapper {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.5rem;
}

.hero-avatar {
  width: 140px;
  height: 140px;
  border-radius: 999px;
  overflow: hidden;
  background: radial-gradient(circle at 30% 30%, #38bdf8, #1d4ed8);
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 20px 40px rgba(15, 23, 42, 0.4);
  position: relative;
}

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

.hero-avatar span {
  display: none;
}

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

.hero-location {
  font-size: 0.85rem;
  color: var(--muted-text);
}

/* Küçük ekran için hero düzeni */
@media (max-width: 768px) {
  .hero-content {
    min-height: auto;
    grid-template-columns: 1fr;
    padding: 2.5rem 1.25rem;
  }

  .hero-left {
    padding-right: 0;
    text-align: left;
  }

  .hero-right {
    margin-top: 1rem;
  }
}

.hero-subtitle {
  font-size: 0.9rem;
  color: var(--accent);
  text-transform: uppercase;
  letter-spacing: 0.15em;
  margin-bottom: 0.75rem;
}

.hero-title {
  font-size: clamp(2rem, 4vw, 3rem);
  margin-bottom: 1rem;
}

.hero-text {
  max-width: 520px;
  margin-bottom: 1.5rem;
}

.hero-actions {
  display: flex;
  gap: 0.75rem;
}

/* Butonlar */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0.6rem 1.2rem;
  border-radius: 999px;
  border: 1px solid transparent;
  font-size: 0.95rem;
  cursor: pointer;
  text-decoration: none;
  transition: transform 0.15s ease, box-shadow 0.15s ease, background 0.15s ease;
}

.btn.primary {
  background: var(--accent);
  color: #ffffff;
  box-shadow: var(--shadow-soft);
}

.btn.primary:hover {
  transform: translateY(-1px);
}

.btn.secondary {
  background: transparent;
  color: var(--text-color);
  border-color: var(--border-color);
}

.btn.secondary:hover {
  background: var(--bg-elevated);
}

/* ========== Section Başlıkları ========== */
.section h2 {
  font-size: 1.5rem;
  margin-bottom: 0.5rem;
}

.section h2 + p {
  margin-top: 0.25rem;
}

.section .container {
  border-radius: 1.5rem;
  padding: 1.5rem 1.25rem;
}

#about .container,
#skills .container,
#projects .container,
#contact .container {
  background: rgba(255, 255, 255, 0.7);
  border: 1px solid var(--border-color);
  box-shadow: var(--shadow-soft);
}

html[data-theme="dark"] #about .container,
html[data-theme="dark"] #skills .container,
html[data-theme="dark"] #projects .container,
html[data-theme="dark"] #contact .container {
  background: rgba(15, 23, 42, 0.7);
}

/* ========== Skills ========== */
.skills-grid {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  margin-top: 0.75rem;
}

.skill-badge {
  padding: 0.4rem 0.8rem;
  border-radius: 999px;
  border: 1px solid var(--border-color);
  background: var(--bg-elevated);
  font-size: 0.85rem;
  transition: transform 0.15s ease, box-shadow 0.15s ease;
}

.skill-badge:hover {
  transform: translateY(-1px);
  box-shadow: var(--shadow-soft);
}



/* ========== Projects ========== */
.projects-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 1.5rem;
  margin-top: 1rem;
}

.project-card {
  padding: 1.2rem;
  border-radius: 1rem;
  border: 1px solid var(--border-color);
  background: var(--bg-elevated);
  box-shadow: var(--shadow-soft);
}

.project-card h3 {
  margin-bottom: 0.5rem;
}

.project-card p {
  margin-bottom: 0.7rem;
}

.project-status {
  font-size: 0.75rem;
  padding: 0.25rem 0.6rem;
  border-radius: 999px;
}

.project-status.completed {
  background: rgba(16, 185, 129, 0.15);
  color: #047857;
}

.project-status.in-progress {
  background: rgba(234, 179, 8, 0.15);
  color: #92400e;
}

.project-meta {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 0.75rem;
  margin-top: 0.5rem;
  margin-bottom: 0.75rem;
}

.project-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 0.35rem;
  justify-content: flex-end;
}

.project-tag {
  padding: 0.2rem 0.6rem;
  border-radius: 999px;
  border: 1px solid var(--border-color);
  font-size: 0.7rem;
  color: var(--muted-text);
}

.project-links {
  display: flex;
  gap: 0.5rem;
  margin-top: 0.5rem;
}

.small-btn {
  padding: 0.35rem 0.8rem;
  font-size: 0.8rem;
}

/* ========== Contact ========== */
.contact-layout {
  display: grid;
  grid-template-columns: minmax(0, 1.5fr) minmax(0, 1fr);
  gap: 2rem;
  margin-top: 1.5rem;
}

.contact-info p {
  margin-bottom: 1rem;
}

.contact-links h3 {
  margin-bottom: 0.75rem;
}

/* Link butonları */
.links-list {
  list-style: none;
  margin-top: 0.5rem;
  padding-left: 0;
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

.links-list a {
  display: inline-flex;
  align-items: center;
  justify-content: flex-start;
  padding: 0.45rem 0.9rem;
  border-radius: 999px;
  border: 1px solid var(--border-color);
  background: var(--bg-elevated);
  text-decoration: none;
  font-size: 0.9rem;
  color: var(--text-color);
  transition: background-color 0.2s ease, transform 0.15s ease, box-shadow 0.15s ease;
}

.links-list a:hover {
  transform: translateY(-1px);
  box-shadow: var(--shadow-soft);
}

/* Küçük ekranlarda contact layout */
@media (max-width: 768px) {
  .contact-layout {
    grid-template-columns: 1fr;
  }
}
.links-list {
  list-style: none;
  margin-top: 0.5rem;
}

.links-list li + li {
  margin-top: 0.35rem;
}

.links-list a {
  color: var(--accent);
  text-decoration: none;
}

/* ========== Footer ========== */
.footer {
  border-top: 1px solid var(--border-color);
  padding: 1rem 0;
  font-size: 0.85rem;
  text-align: center;
}

/* ========== Responsive ========== */
@media (max-width: 640px) {
  .nav {
    gap: 0.5rem;
    font-size: 0.85rem;
  }

  #theme-toggle {
    padding: 0.3rem 0.6rem;
  }

  .hero {
    padding-top: 4rem;
  }

  .hero-content {
    min-height: auto;
  }
}

.section {
  padding: 4rem 0;
  opacity: 0;
  transform: translateY(16px);
  transition: opacity 0.5s ease, transform 0.5s ease;
}

.section.section-visible {
  opacity: 1;
  transform: translateY(0);
}

.admin-section {
  opacity: 1 !important;
  transform: none !important;
}