/* ===== Variables ===== */
:root {
  --dark: #0f172a;
  --dark-alt: #1e293b;
  --accent: #3b82f6;
  --accent-hover: #2563eb;
  --text: #e2e8f0;
  --text-muted: #94a3b8;
}

/* ===== Base ===== */
html {
  scroll-behavior: smooth;
} /* mevcut * { scroll-behavior } yerine */

body {
  overflow-x: hidden;
} /* sağ/sol reveal yatay scroll yapmasın */

.brand-logo {
  height: 38px;
  width: auto;
  display: block;
}

body {
  background-color: var(--dark);
  color: var(--text);
  font-family: "Segoe UI", system-ui, sans-serif;
  line-height: 1.7;
}

.section-padding {
  padding: 6rem 0;
}

.bg-alt {
  background-color: var(--dark-alt);
}

.text-accent {
  color: var(--accent);
}

.text-light-muted {
  color: var(--text-muted);
}

.text-secondary {
  color: var(--text-muted) !important;
}

.section-title {
  font-weight: 700;
  font-size: 2.25rem;
}

/* ===== Navbar ===== */
#mainNav {
  background-color: rgba(15, 23, 42, 0.95);
  backdrop-filter: blur(10px);
  transition: all 0.3s ease;
  padding: 1rem 0;
}

#mainNav.scrolled {
  padding: 0.5rem 0;
  box-shadow: 0 2px 20px rgba(0, 0, 0, 0.3);
}

.navbar-brand {
  font-size: 1.5rem;
  letter-spacing: 2px;
  color: var(--accent) !important;
}

.navbar-nav .nav-link {
  color: var(--text-muted) !important;
  font-weight: 500;
  position: relative;
  transition: color 0.3s ease;
}

.navbar-nav .nav-link:hover,
.navbar-nav .nav-link.active {
  color: var(--accent) !important;
}

/* ===== Hero ===== */
.hero {
  min-height: 100vh;
  padding-top: 6rem;
  padding-bottom: 3rem;
  background: linear-gradient(135deg, var(--dark) 0%, var(--dark-alt) 100%);
}

.hero h1 {
  font-size: clamp(2rem, 5vw, 3.5rem);
}

.profile-circle {
  width: 260px;
  height: 260px;
  border-radius: 50%;
  background: var(--dark-alt);
  border: 3px solid var(--accent);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 5rem;
  color: var(--accent);
}

/* ===== Buttons ===== */
.btn-accent {
  background-color: var(--accent);
  color: #fff;
  border: none;
  font-weight: 600;
  transition: all 0.3s ease;
}

.btn-accent:hover {
  background-color: var(--accent-hover);
  color: #fff;
  transform: translateY(-2px);
}

.btn-outline-light:hover {
  transform: translateY(-2px);
}

/* ===== Info Cards ===== */
.info-card {
  background: var(--dark-alt);
  border-radius: 12px;
  padding: 1.25rem;
  display: flex;
  gap: 1rem;
  align-items: flex-start;
  height: 100%;
  border: 1px solid rgba(255, 255, 255, 0.05);
}

.info-card i {
  color: var(--accent);
  font-size: 1.5rem;
  margin-top: 0.25rem;
}

/* ===== Skill Cards ===== */
.skill-card {
  background: var(--dark);
  border-radius: 16px;
  padding: 2rem;
  border: 1px solid rgba(255, 255, 255, 0.06);
  transition:
    transform 0.3s ease,
    border-color 0.3s ease;
}

.skill-card:hover {
  transform: translateY(-6px);
  border-color: var(--accent);
}

.skill-card i {
  font-size: 2rem;
  color: var(--accent);
  margin-bottom: 1rem;
}

.badge-skill {
  background: rgba(59, 130, 246, 0.12);
  color: var(--accent);
  padding: 0.35rem 0.85rem;
  border-radius: 20px;
  font-size: 0.85rem;
  font-weight: 500;
}

/* ===== Project Cards ===== */
.project-card {
  background: var(--dark-alt);
  border-radius: 16px;
  padding: 2rem;
  border: 1px solid rgba(255, 255, 255, 0.06);
  transition:
    transform 0.3s ease,
    border-color 0.3s ease;
  display: flex;
  flex-direction: column;
}

.project-card:hover {
  transform: translateY(-6px);
  border-color: var(--accent);
}

.project-icon {
  width: 56px;
  height: 56px;
  border-radius: 12px;
  background: rgba(59, 130, 246, 0.12);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.5rem;
  color: var(--accent);
  margin-bottom: 1.25rem;
}

.badge-tech {
  background: rgba(148, 163, 184, 0.12);
  color: var(--text-muted);
  padding: 0.25rem 0.7rem;
  border-radius: 6px;
  font-size: 0.75rem;
}

.project-link {
  color: var(--accent);
  text-decoration: none;
  font-weight: 600;
  font-size: 0.9rem;
  margin-top: auto;
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  transition: gap 0.3s ease;
}

.project-link:hover {
  color: var(--accent-hover);
  gap: 0.75rem;
}

/* ===== Contact Cards ===== */
.contact-card {
  display: block;
  background: var(--dark);
  border-radius: 16px;
  padding: 2rem 1.5rem;
  text-align: center;
  text-decoration: none;
  color: var(--text);
  border: 1px solid rgba(255, 255, 255, 0.06);
  transition:
    transform 0.3s ease,
    border-color 0.3s ease;
  height: 100%;
}

.contact-card:hover {
  transform: translateY(-6px);
  border-color: var(--accent);
  color: var(--text);
}

.contact-card i {
  font-size: 2rem;
  color: var(--accent);
}

/* ===== Footer ===== */
footer {
  background: var(--dark-alt);
  border-top: 1px solid rgba(255, 255, 255, 0.05);
}

/* ===== Responsive ===== */
@media (max-width: 991px) {
  #mainNav .navbar-collapse {
    background: var(--dark-alt);
    padding: 1rem;
    border-radius: 12px;
    margin-top: 1rem;
  }

  .section-padding {
    padding: 4rem 0;
  }

  .profile-circle {
    width: 200px;
    height: 200px;
    font-size: 4rem;
  }
}
.reveal {
  opacity: 0;
  transform: translateY(40px);
  transition:
    opacity 0.7s ease,
    transform 0.7s ease;
}
.reveal.left {
  transform: translateX(-60px);
}
.reveal.right {
  transform: translateX(60px);
}

.reveal.visible {
  opacity: 1;
  transform: none;
}

@media (prefers-reduced-motion: reduce) {
  .reveal {
    transition: none;
    opacity: 1;
    transform: none;
  }
}
.reveal.d1 {
  transition-delay: 0.1s;
}
.reveal.d2 {
  transition-delay: 0.2s;
}
.reveal.d3 {
  transition-delay: 0.3s;
}

.lang-btn {
  background: transparent;
  border: 1px solid rgba(255, 255, 255, 0.25);
  color: #e6e8eb;
  padding: 0.35rem 0.75rem;
  border-radius: 6px;
  font-size: 0.85rem;
  font-weight: 600;
  letter-spacing: 0.05em;
  cursor: pointer;
  transition:
    border-color 0.2s ease,
    color 0.2s ease;
}

.lang-btn:hover {
  border-color: #3b82f6;
  color: #3b82f6;
}
.hero-illustration {
  width: 100%;
  max-width: 480px;
  height: auto;
}
.brand-avatar {
  width: 42px;
  height: 42px;
  object-fit: contain;
}