/* =========================
   CONTAINER & SECTIONS
   ========================= */
.container {
  max-width: 1000px;
  margin: 2rem auto;
  padding: 4rem;
  background: var(--container-bg);
  border-radius: 15px;
  box-shadow: 0 10px 36px var(--shadow-color);
  transition: background 0.4s ease, box-shadow 0.4s ease;
  position: relative;
  z-index: 1;
}

section {
  margin-bottom: 2.2rem;
  padding: 1.6rem 1.8rem;
  background: var(--section-bg);
  border: 1px solid var(--section-border);
  border-radius: 12px;
  transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
  position: relative;
  opacity: 0;
  transform: translateY(20px);
  backdrop-filter: blur(10px);
  overflow: hidden;
}

section::before {
  content: '';
  position: absolute;
  top: 0;
  left: -100%;
  width: 100%;
  height: 100%;
  background: linear-gradient(90deg, transparent, rgba(255,255,255,0.1), transparent);
  transition: left 0.6s ease;
}

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

section:hover {
  box-shadow: 0 20px 40px rgba(0,0,0,0.1), 0 0 20px var(--glow-color);
  
  border-color: var(--accent-color);
}

/* =========================
   NAVIGATION
   ========================= */
.site-header {
  position: sticky;
  top: 0;
  z-index: 1000;
  padding: .75rem .5rem;
}

nav {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 0.75rem 1rem;
  background: var(--section-bg);
  border: 1px solid var(--section-border);
  border-radius: 10px;
  user-select: none;
  backdrop-filter: blur(10px);
}

.nav-brand .logo {
  font-weight: 700;
  font-size: 1.1rem;
  color: var(--text-color);
  text-decoration: none;
}

.nav-links {
  display: flex;
  gap: 1.5rem;
  align-items: center;
}

.nav-links a {
  color: var(--text-color);
  font-weight: 600;
  font-size: 1rem;
  font-family: 'Fira Code', monospace;
  transition: color 0.2s ease, transform 0.2s ease;
  text-decoration: none;
}

.nav-links a:hover {
  color: var(--accent-color);
  transform: translateY(-1px);
}

.nav-links a:focus-visible {
  box-shadow: var(--focus-ring);
  border-radius: 8px;
}

.nav-links a[aria-current="page"] {
  color: var(--accent-color);
  text-decoration: underline;
}

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

#themeToggle {
  border: none;
  background: var(--section-bg);
  color: var(--accent-color);
  font-size: 1.2rem;
  cursor: pointer;
  line-height: 1;
  transition: all 0.3s ease;
  padding: 8px 12px;
  border-radius: 8px;
  border: 1px solid var(--section-border);
  min-width: 50px;
  display: flex;
  align-items: center;
  justify-content: center;
}

#themeToggle:hover {
  background: var(--accent-color);
  color: var(--text-color);
  transform: scale(1.05);
  box-shadow: 0 4px 12px rgba(217, 141, 60, 0.3);
}

#themeToggle:focus-visible {
  box-shadow: var(--focus-ring);
  border-radius: 8px;
}

.hamburger {
  display: none;
  width: 40px;
  height: 40px;
  background: transparent;
  border: 2px solid var(--accent-color);
  border-radius: 8px;
  cursor: pointer;
  padding: 0;
  z-index: 1001;
  position: relative;
  transition: all 0.3s ease;
}

.hamburger:hover {
  background: var(--accent-color);
  transform: scale(1.05);
}

.hamburger .menu-icon,
.hamburger .close-icon {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  font-size: 18px;
  color: var(--accent-color);
  transition: all 0.3s ease;
  font-weight: bold;
}

.hamburger:hover .menu-icon,
.hamburger:hover .close-icon {
  color: var(--text-color);
}

.hamburger .close-icon {
  opacity: 0;
  transform: translate(-50%, -50%) rotate(90deg);
}

.hamburger.active .menu-icon {
  opacity: 0;
  transform: translate(-50%, -50%) rotate(-90deg);
}

.hamburger.active .close-icon {
  opacity: 1;
  transform: translate(-50%, -50%) rotate(0deg);
}

/* =========================
   PROFILE
   ========================= */
.profile-pic-wrapper {
  display: flex;
  justify-content: center;
  margin: 0 auto 1.4rem auto;
  width: fit-content;
}

.profile-pic {
  width: 160px;
  height: 160px;
  border-radius: 50%;
  object-fit: cover;
  display: block;
  border: 3px solid var(--accent-color);
  box-shadow: 0 0 14px var(--accent-color);
  transition: box-shadow 0.25s ease;
}

.profile-pic:hover {
  box-shadow: 0 0 22px var(--accent-color);
}