/* ============================================================
   Personal Website — Layout & Navigation
   Joel Evert Patreksson Thomas
   ============================================================ */

.nav {
  position: fixed;
  top: 18px;
  left: 50%;
  transform: translateX(-50%);
  z-index: 100;
  width: min(100% - 1.5rem, 1180px);
  height: 72px;
  display: flex;
  align-items: center;
  background: rgba(8, 7, 8, 0.58);
  border: 1px solid rgba(234, 220, 204, 0.08);
  border-bottom-color: transparent;
  border-radius: 22px;
  backdrop-filter: blur(18px) saturate(140%);
  -webkit-backdrop-filter: blur(18px) saturate(140%);
  box-shadow: var(--shadow-nav);
  transition: background var(--transition-base), border-color var(--transition-base), box-shadow var(--transition-base), transform var(--transition-base);
}

.nav::before {
  content: '';
  position: absolute;
  inset: 0;
  border-radius: inherit;
  background: linear-gradient(180deg, rgba(255, 255, 255, 0.08), transparent 55%);
  pointer-events: none;
}

.nav:hover,
.nav:focus-within {
  transform: translateX(-50%) translateY(-2px);
}

body.scrolled .nav {
  background: rgba(8, 7, 8, 0.78);
  border-bottom-color: rgba(107, 39, 55, 0.4);
  box-shadow: 0 18px 44px rgba(0, 0, 0, 0.45), 0 1px 0 rgba(107, 39, 55, 0.32);
}

.nav-inner {
  position: relative;
  z-index: 1;
  display: flex;
  justify-content: space-between;
  align-items: center;
  width: 100%;
  padding: 0 clamp(1rem, 2vw, 1.7rem);
  gap: var(--space-5);
}

.nav-logo {
  font-family: var(--font-heading);
  font-size: 1.18rem;
  font-weight: 600;
  letter-spacing: -0.03em;
  color: var(--light);
  text-decoration: none;
}

.nav-logo:hover {
  color: #fff7ef;
  text-decoration: none;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: clamp(1rem, 2vw, 2rem);
  list-style: none;
  margin: 0;
  padding: 0;
}

.nav-links a {
  font-family: var(--font-body);
  font-size: 0.92rem;
  font-weight: 600;
  letter-spacing: 0.02em;
  text-transform: uppercase;
  color: var(--text-mid);
  text-decoration: none;
  transition: color var(--transition-fast), transform var(--transition-fast);
  padding: 0.55rem 0;
  position: relative;
}

.nav-links a::before {
  content: '';
  position: absolute;
  left: 50%;
  bottom: -2px;
  width: calc(100% + 12px);
  height: 18px;
  transform: translateX(-50%);
  background: radial-gradient(circle, rgba(107, 39, 55, 0.22) 0%, transparent 72%);
  opacity: 0;
  transition: opacity var(--transition-base);
  pointer-events: none;
}

.nav-links a::after {
  content: '';
  position: absolute;
  bottom: -3px;
  left: 50%;
  width: 0;
  height: 2px;
  transform: translateX(-50%);
  background: linear-gradient(90deg, var(--maroon), var(--light-dim));
  border-radius: 999px;
  transition: width var(--transition-base);
}

.nav-links a:hover,
.nav-links a.active {
  color: var(--light);
}

.nav-links a:hover::before,
.nav-links a.active::before {
  opacity: 1;
}

.nav-links a:hover::after,
.nav-links a.active::after {
  width: 100%;
}

.nav-toggle {
  display: none;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  background: rgba(255, 255, 255, 0.03);
  border: 1px solid rgba(234, 220, 204, 0.08);
  border-radius: 12px;
  cursor: pointer;
  padding: 0.7rem;
  margin-left: auto;
  transition: background var(--transition-fast), border-color var(--transition-fast), transform var(--transition-fast);
}

.nav-toggle:hover {
  background: rgba(107, 39, 55, 0.16);
  border-color: rgba(234, 220, 204, 0.18);
}

.nav-toggle.is-open {
  transform: rotate(180deg);
}

.nav-toggle span {
  display: block;
  width: 22px;
  height: 2px;
  background: var(--light);
  border-radius: 999px;
  transition: transform var(--transition-base), opacity var(--transition-base);
}

.nav-toggle.is-open span:nth-child(1) {
  transform: translateY(7px) rotate(45deg);
}

.nav-toggle.is-open span:nth-child(2) {
  opacity: 0;
}

.nav-toggle.is-open span:nth-child(3) {
  transform: translateY(-7px) rotate(-45deg);
}

.page-content {
  padding-top: 106px;
}

.hero {
  min-height: calc(100vh - 106px);
  display: flex;
  align-items: center;
  position: relative;
  overflow: hidden;
  background:
    radial-gradient(circle at 80% 18%, rgba(107, 39, 55, 0.14), transparent 26%),
    radial-gradient(circle at 20% 0%, rgba(234, 220, 204, 0.05), transparent 32%),
    linear-gradient(180deg, rgba(8, 7, 8, 0.98), rgba(17, 16, 18, 0.96));
}

.hero::before {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, rgba(255, 255, 255, 0.025), transparent 44%);
  pointer-events: none;
}

.hero::after {
  content: '';
  position: absolute;
  top: -15%;
  right: -12%;
  width: min(55vw, 720px);
  aspect-ratio: 1;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(107, 39, 55, 0.12) 0%, transparent 68%);
  filter: blur(10px);
}

.hero-inner {
  position: relative;
  z-index: 1;
  max-width: 760px;
}

.hero h1 {
  margin-bottom: var(--space-4);
}

.hero-tagline {
  font-size: var(--step-1);
  color: var(--text);
  margin-bottom: var(--space-5);
  line-height: 1.72;
}

.hero-cta {
  display: flex;
  gap: var(--space-3);
  flex-wrap: wrap;
  margin-top: var(--space-5);
}

.footer {
  margin-top: auto;
  background: rgba(8, 7, 8, 0.92);
  border-top: 1px solid rgba(234, 220, 204, 0.08);
  color: var(--text-mid);
  padding: var(--space-7) 0;
  font-size: 0.875rem;
}

.footer-inner {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: var(--space-4);
  flex-wrap: wrap;
}

.footer p {
  margin: 0;
  color: var(--text-mid);
}

.footer a {
  color: var(--text-mid);
}

.footer a:hover {
  color: var(--light);
}

.grid-2,
.grid-3,
.grid-4 {
  display: grid;
  gap: var(--space-5);
}

.grid-2 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
.grid-3 { grid-template-columns: repeat(3, minmax(0, 1fr)); }
.grid-4 { grid-template-columns: repeat(4, minmax(0, 1fr)); }

.timeline {
  position: relative;
  padding-left: clamp(1.75rem, 4vw, 3rem);
}

.timeline::before {
  content: '';
  position: absolute;
  left: 0;
  top: 0.35rem;
  bottom: 0.35rem;
  width: 1px;
  background: linear-gradient(180deg, transparent 0%, rgba(107, 39, 55, 0.85) 15%, rgba(234, 220, 204, 0.16) 100%);
}

.timeline-item {
  position: relative;
  padding-bottom: clamp(2rem, 4vw, 3rem);
}

.timeline-item:last-child {
  padding-bottom: 0;
}

.timeline-item::before {
  content: '';
  position: absolute;
  left: calc(-1 * clamp(1.75rem, 4vw, 3rem) - 5px);
  top: 0.45rem;
  width: 11px;
  height: 11px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--light-dim), var(--maroon));
  box-shadow: 0 0 0 6px rgba(107, 39, 55, 0.12);
}

@media (max-width: 768px) {
  .nav {
    top: 12px;
    width: calc(100% - 1rem);
    height: auto;
    min-height: 68px;
  }

  .nav-inner {
    flex-wrap: wrap;
    padding: 0.9rem 1rem;
  }

  .nav-links {
    display: none;
    width: 100%;
  }

  .nav-links.open {
    display: flex;
    flex-direction: column;
    align-items: stretch;
    gap: 0.4rem;
    padding-top: 0.8rem;
  }

  .nav-links.open li {
    width: 100%;
  }

  .nav-links.open a {
    display: block;
    padding: 0.8rem 0.95rem;
    border-radius: 14px;
    background: rgba(255, 255, 255, 0.03);
  }

  .nav-links.open a::after,
  .nav-links.open a::before {
    display: none;
  }

  .nav-toggle {
    display: inline-flex;
  }

  .page-content {
    padding-top: 96px;
  }

  .hero {
    min-height: auto;
    padding: var(--space-8) 0 var(--space-7);
  }

  .hero-cta,
  .footer-inner {
    flex-direction: column;
    align-items: flex-start;
  }

  .grid-2,
  .grid-3,
  .grid-4 {
    grid-template-columns: 1fr;
  }
}

@media (min-width: 769px) and (max-width: 1024px) {
  .grid-3,
  .grid-4 {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}