/* ============================================================
   LAYOUT — Navbar, Drawer, Section, Footer
   Loaded on every page.
   ============================================================ */

/* ── Navigation ── */
.navbar {
  background: var(--nav-bg);
  backdrop-filter: blur(24px);
  -webkit-backdrop-filter: blur(24px);
  border-bottom: 1px solid var(--border);
  height: var(--nav-height);
  padding: 0;
  transition: background 0.3s ease, border-color 0.3s ease;
}

.navbar.scrolled {
  background: var(--nav-bg-solid);
  border-bottom-color: var(--border);
  box-shadow: var(--shadow);
}

.navbar .container {
  height: 100%;
  display: flex;
  align-items: center;
}

.nav-logo {
  font-size: 1.25rem;
  font-weight: 800;
  color: var(--text);
  letter-spacing: -0.045em;
  transition: color var(--ease);
  text-decoration: none;
  white-space: nowrap;
}

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

.nav-avatar {
  width: 40px;
  height: 40px;
  border-radius: 50%;
  object-fit: cover;
  border: 2px solid rgba(255, 255, 255, 0.1);
  transition: transform 0.2s cubic-bezier(0.16, 1, 0.3, 1);
  will-change: transform;
}

.nav-avatar:hover { transform: scale(1.12); }

.navbar-collapse { justify-content: flex-end; }

.nav-right {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  margin-left: auto;
}

.navbar-nav {
  display: flex;
  align-items: center;
  gap: 0.15rem;
  margin-left: auto;
}

.navbar-nav .nav-link {
  position: relative;
  color: var(--text-muted) !important;
  font-size: 0.875rem;
  font-weight: 500;
  padding: 0.45rem 0.9rem !important;
  border-radius: var(--radius-xs);
  transition: color var(--ease), background var(--ease);
}

.navbar-nav .nav-link:hover { color: var(--text) !important; background: var(--card); }

.navbar-nav .nav-link.active {
  color: var(--accent) !important;
  background: var(--accent-dim);
  font-weight: 600;
}

/* Sliding underline on non-active links */
.navbar-nav .nav-link:not(.active)::after {
  content: '';
  position: absolute;
  bottom: 3px;
  left: 0.9rem;
  right: 0.9rem;
  height: 1.5px;
  background: var(--accent);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform 0.22s cubic-bezier(0.4, 0, 0.2, 1);
  border-radius: 1px;
}

.navbar-nav .nav-link:hover:not(.active)::after { transform: scaleX(1); }

/* Theme toggle */
.theme-toggle {
  background: none;
  border: 1px solid var(--border-lit);
  border-radius: var(--radius-xs);
  color: var(--text-muted);
  width: 36px;
  height: 36px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  font-size: 0.85rem;
  transition: all var(--ease);
  flex-shrink: 0;
  margin-left: 0.5rem;
}

.theme-toggle:hover {
  border-color: var(--accent);
  color: var(--accent);
  background: var(--accent-dim);
}

.theme-toggle .icon-sun  { display: none; }
.theme-toggle .icon-moon { display: block; }

[data-theme="dark"] .theme-toggle .icon-sun  { display: block; }
[data-theme="dark"] .theme-toggle .icon-moon { display: none; }

/* Hamburger */
.navbar-toggler {
  border: 1px solid var(--border-lit);
  border-radius: var(--radius-xs);
  padding: 0.35rem 0.6rem;
  background: transparent;
  transition: border-color var(--ease);
  line-height: 1;
}

.navbar-toggler:focus { box-shadow: none; outline: none; }
.navbar-toggler:hover { border-color: var(--accent); }
.navbar-toggler .fas { color: var(--text-muted); font-size: 0.95rem; }

/* ── Mobile Side Drawer ── */
.nav-overlay {
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.5);
  z-index: 1040;
  opacity: 0;
  pointer-events: none;
  visibility: hidden;
  backdrop-filter: blur(0px);
  -webkit-backdrop-filter: blur(0px);
  transition: opacity 0.32s cubic-bezier(0.4, 0, 0.2, 1),
              visibility 0s linear 0.32s,
              backdrop-filter 0.32s cubic-bezier(0.4, 0, 0.2, 1),
              -webkit-backdrop-filter 0.32s cubic-bezier(0.4, 0, 0.2, 1);
}

.nav-overlay.is-open {
  opacity: 1;
  pointer-events: all;
  visibility: visible;
  backdrop-filter: blur(4px);
  -webkit-backdrop-filter: blur(4px);
  transition: opacity 0.32s cubic-bezier(0.4, 0, 0.2, 1),
              visibility 0s linear 0s,
              backdrop-filter 0.32s cubic-bezier(0.4, 0, 0.2, 1),
              -webkit-backdrop-filter 0.32s cubic-bezier(0.4, 0, 0.2, 1);
}

.nav-drawer {
  position: fixed;
  top: 0; right: 0; bottom: 0;
  width: 288px;
  max-width: 84vw;
  background: var(--bg);
  border-left: 1px solid var(--border);
  z-index: 1050;
  display: flex;
  flex-direction: column;
  transform: translateX(110%);
  box-shadow: none;
  transition: transform 0.38s cubic-bezier(0.16, 1, 0.3, 1),
              box-shadow 0.38s cubic-bezier(0.16, 1, 0.3, 1);
  will-change: transform;
}

.nav-drawer.is-open {
  transform: translateX(0);
  box-shadow: -12px 0 48px rgba(0, 0, 0, 0.14);
}

@media (min-width: 768px) {
  .nav-drawer,
  .nav-overlay { display: none !important; }
}

.nav-drawer-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 1.1rem 1.25rem;
  border-bottom: 1px solid var(--border);
  flex-shrink: 0;
}

.nav-drawer-brand {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  text-decoration: none;
}

.nav-drawer-avatar {
  width: 32px;
  height: 32px;
  border-radius: 50%;
  object-fit: cover;
  border: 2px solid var(--border-lit);
}

.nav-drawer-brand-text {
  font-size: 1.1rem;
  font-weight: 800;
  color: var(--text);
  letter-spacing: -0.045em;
}

.nav-drawer-dot { color: var(--accent); }

.nav-drawer-close {
  width: 34px;
  height: 34px;
  border: 1px solid var(--border-lit);
  border-radius: var(--radius-xs);
  background: transparent;
  color: var(--text-muted);
  font-size: 0.9rem;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  transition: border-color var(--dur-fast) ease,
              color var(--dur-fast) ease,
              background-color var(--dur-fast) ease;
  flex-shrink: 0;
}

.nav-drawer-close:hover {
  border-color: var(--accent);
  color: var(--accent);
  background: var(--accent-dim);
}

.nav-drawer-close:focus { outline: none; box-shadow: 0 0 0 2px var(--accent-glow); }

.nav-drawer-nav {
  flex: 1;
  display: flex;
  flex-direction: column;
  padding: 1.5rem 1rem;
  gap: 0.25rem;
  overflow-y: auto;
}

.nav-drawer-link {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0.85rem 1rem;
  border-radius: var(--radius-sm);
  color: var(--text-muted);
  font-size: 1rem;
  font-weight: 500;
  text-decoration: none;
  border: 1px solid transparent;
  opacity: 0;
  transform: translateX(18px);
  transition: opacity 0.24s ease,
              transform 0.24s ease,
              color var(--dur-fast) ease,
              background-color var(--dur-fast) ease,
              border-color var(--dur-fast) ease;
}

.nav-drawer.is-open .nav-drawer-link { opacity: 1; transform: translateX(0); }

.nav-drawer.is-open .nav-drawer-link:nth-child(1) { transition-delay: 0.10s; }
.nav-drawer.is-open .nav-drawer-link:nth-child(2) { transition-delay: 0.15s; }
.nav-drawer.is-open .nav-drawer-link:nth-child(3) { transition-delay: 0.20s; }
.nav-drawer.is-open .nav-drawer-link:nth-child(4) { transition-delay: 0.25s; }

.nav-drawer-link-arrow {
  font-size: 0.65rem;
  opacity: 0;
  transform: translateX(-4px);
  transition: opacity var(--dur-fast) ease, transform var(--dur-fast) ease;
  color: var(--accent);
}

.nav-drawer-link:hover {
  color: var(--text);
  background: var(--card);
  border-color: var(--border);
}

.nav-drawer-link:hover .nav-drawer-link-arrow { opacity: 1; transform: translateX(0); }

.nav-drawer-link.active {
  color: var(--accent);
  background: var(--accent-dim);
  border-color: rgba(7, 160, 246, 0.2);
  font-weight: 600;
}

.nav-drawer-link.active .nav-drawer-link-arrow { opacity: 0.7; transform: translateX(0); }

.nav-drawer-footer {
  flex-shrink: 0;
  padding: 0 1rem 1.25rem;
}

.nav-drawer-divider { height: 1px; background: var(--border); margin-bottom: 1rem; }

.nav-drawer-footer-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 0.25rem;
}

.nav-drawer-footer-label {
  font-size: 0.72rem;
  color: var(--text-dim);
  letter-spacing: 0.02em;
}

body.drawer-open { overflow: hidden; }

/* ── Section Layout ── */
.section    { padding: 96px 0; }
.section-sm { padding: 64px 0; }

.section-eyebrow {
  display: inline-block;
  font-size: 0.68rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.18em;
  color: var(--accent);
  margin-bottom: 0.75rem;
}

.section-title-lg {
  font-size: clamp(2rem, 4vw, 2.6rem);
  font-weight: 800;
  color: var(--text);
  margin-bottom: 1rem;
  letter-spacing: -0.03em;
}

.section-description {
  font-size: 1.025rem;
  color: var(--text-muted);
  line-height: 1.8;
  max-width: 520px;
}

@media (max-width: 768px) { .section { padding: 64px 0; } }
@media (max-width: 480px) { .section { padding: 48px 0; } }

/* ── Footer ── */
footer {
  background: var(--bg-alt);
  border-top: 1px solid var(--border);
  padding: 0;
}

.footer-main { padding: 72px 0 56px; }

.footer-brand {
  font-size: 1.55rem;
  font-weight: 800;
  color: var(--text);
  letter-spacing: -0.055em;
  display: block;
  margin-bottom: 1rem;
  text-decoration: none;
  transition: color var(--dur-fast) cubic-bezier(0.4, 0, 0.2, 1);
}

.footer-brand .dot  { color: var(--accent); }
.footer-brand:hover { color: var(--accent); }

.footer-tagline {
  font-size: 0.9rem;
  color: var(--text-muted);
  line-height: 1.85;
  max-width: 260px;
}

.footer-col-title {
  font-size: 0.64rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.16em;
  color: var(--text-dim);
  margin-bottom: 1.35rem;
}

.footer-nav-list li + li { margin-top: 0.65rem; }

.footer-nav-list a {
  color: var(--text-muted);
  font-size: 0.875rem;
  transition: color var(--dur-fast) cubic-bezier(0.4, 0, 0.2, 1);
  position: relative;
  display: inline-block;
}

.footer-nav-list a::after {
  content: '';
  position: absolute;
  bottom: -1px;
  left: 0;
  width: 0;
  height: 1px;
  background: var(--accent);
  transition: width 0.25s cubic-bezier(0.4, 0, 0.2, 1);
}

.footer-nav-list a:hover { color: var(--accent); }
.footer-nav-list a:hover::after { width: 100%; }

.footer-contact-info {
  display: flex;
  flex-direction: column;
  gap: 0.9rem;
  margin-bottom: 1.5rem;
}

.footer-contact-item {
  display: flex;
  align-items: center;
  gap: 0.7rem;
  color: var(--text-muted);
  font-size: 0.875rem;
  text-decoration: none;
  transition: color var(--dur-fast) cubic-bezier(0.4, 0, 0.2, 1);
}

a.footer-contact-item:hover { color: var(--accent); }

.footer-contact-item i {
  color: var(--accent);
  width: 14px;
  text-align: center;
  flex-shrink: 0;
  opacity: 0.8;
}

.footer-resume-btn {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  font-size: 0.78rem;
  font-weight: 600;
  color: var(--text-dim);
  border: 1px solid var(--border-lit);
  border-radius: var(--radius-xs);
  padding: 0.48rem 1rem;
  text-decoration: none;
  letter-spacing: 0.01em;
  transition: color var(--dur-base) cubic-bezier(0.4, 0, 0.2, 1),
              border-color var(--dur-base) cubic-bezier(0.4, 0, 0.2, 1),
              background-color var(--dur-base) cubic-bezier(0.4, 0, 0.2, 1),
              transform var(--dur-base) var(--ease-spring);
}

.footer-resume-btn:hover {
  color: var(--accent);
  border-color: rgba(7, 160, 246, 0.45);
  background: var(--accent-dim);
  transform: translateY(-2px);
}

.footer-resume-btn i { font-size: 0.68rem; transition: transform var(--dur-base) var(--ease-spring); }
.footer-resume-btn:hover i { transform: translateY(2px); }

.footer-social-row { display: flex; gap: 0.6rem; flex-wrap: wrap; margin-top: 1.75rem; }

.footer-bottom {
  padding: 22px 0;
  border-top: 1px solid var(--border);
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 0.75rem;
}

.footer-copy { font-size: 0.8rem; color: var(--text-dim); }

.footer-availability {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-size: 0.78rem;
  color: var(--text-dim);
  letter-spacing: 0.01em;
}

.footer-cta-link {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  font-size: 0.8rem;
  font-weight: 500;
  color: var(--text-dim);
  text-decoration: none;
  transition: color var(--dur-fast) cubic-bezier(0.4, 0, 0.2, 1);
}

.footer-cta-link i { font-size: 0.68rem; transition: transform var(--dur-base) var(--ease-spring); }
.footer-cta-link:hover { color: var(--accent); }
.footer-cta-link:hover i { transform: translateX(3px); }

@keyframes availability-pulse {
  0%, 100% { box-shadow: 0 0 0 0 rgba(34, 197, 94, 0.45); }
  55%       { box-shadow: 0 0 0 5px rgba(34, 197, 94, 0); }
}

@media (max-width: 575.98px) {
  .footer-main .col-6,
  .footer-main [class*="col-"] {
    flex: 0 0 100% !important;
    max-width: 100% !important;
    width: 100% !important;
    text-align: center;
    margin-bottom: 2rem;
  }

  .footer-links,
  .footer-contact-list    { align-items: center; }
  .footer-contact-item    { justify-content: center; }
  .footer-social-row      { justify-content: center; }
  .footer-main            { padding: 52px 0 44px; }
  .footer-bottom          { justify-content: center; text-align: center; }
  .footer-availability    { justify-content: center; }
}