/* ── Jack Morgan Portfolio ── */
/* Industrial minimalism + terminal aesthetic */

:root {
  --bg-primary: #07070d;
  --bg-secondary: #0d0d16;
  --bg-card: #10101c;
  --bg-card-hover: #141425;
  --border-subtle: rgba(59, 130, 246, 0.08);
  --border-hover: rgba(59, 130, 246, 0.25);
  --text-primary: #e8e8ed;
  --text-secondary: #8888a0;
  --text-muted: #555570;
  --accent: #3B82F6;
  --accent-glow: rgba(59, 130, 246, 0.15);
  --accent-dim: #2563EB;
  --green: #22c55e;
  --font-display: 'Space Mono', monospace;
  --font-body: 'Outfit', sans-serif;
}

* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
  scroll-padding-top: 5rem;
}

body {
  font-family: var(--font-body);
  background: var(--bg-primary);
  color: var(--text-primary);
  line-height: 1.6;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
}

/* ── Noise texture overlay ── */
body::before {
  content: '';
  position: fixed;
  inset: 0;
  z-index: 9999;
  pointer-events: none;
  opacity: 0.025;
  background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 256 256' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='noise'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='4' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23noise)'/%3E%3C/svg%3E");
  background-repeat: repeat;
  background-size: 256px 256px;
}

/* ── Scrollbar ── */
::-webkit-scrollbar { width: 6px; }
::-webkit-scrollbar-track { background: var(--bg-primary); }
::-webkit-scrollbar-thumb { background: var(--text-muted); border-radius: 3px; }
::-webkit-scrollbar-thumb:hover { background: var(--accent); }

/* ── Selection ── */
::selection {
  background: var(--accent);
  color: var(--bg-primary);
}

/* ── Nav ── */
.nav-glass {
  background: rgba(7, 7, 13, 0.85);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-bottom: 1px solid var(--border-subtle);
}

.nav-link {
  position: relative;
  color: var(--text-secondary);
  text-decoration: none;
  font-family: var(--font-display);
  font-size: 0.8rem;
  letter-spacing: 0.05em;
  transition: color 0.3s;
}

.nav-link:hover,
.nav-link:focus {
  color: var(--accent);
}

.nav-link::after {
  content: '';
  position: absolute;
  bottom: -4px;
  left: 0;
  width: 0;
  height: 1px;
  background: var(--accent);
  transition: width 0.3s;
}

.nav-link:hover::after {
  width: 100%;
}

/* ── Hero ── */
.hero-gradient {
  background:
    radial-gradient(ellipse 60% 50% at 50% 0%, rgba(59, 130, 246, 0.06) 0%, transparent 70%),
    var(--bg-primary);
}

.hero-title {
  font-family: var(--font-display);
  font-size: clamp(2.5rem, 8vw, 5.5rem);
  font-weight: 700;
  line-height: 1.05;
  letter-spacing: -0.03em;
  color: var(--text-primary);
}

.hero-tagline {
  font-family: var(--font-display);
  font-size: clamp(1rem, 3vw, 1.5rem);
  color: var(--accent);
  letter-spacing: 0.02em;
}

.hero-bio {
  color: var(--text-secondary);
  font-size: 1.1rem;
  max-width: 38rem;
  line-height: 1.7;
}

.cursor-blink {
  display: inline-block;
  width: 2px;
  height: 1.2em;
  background: var(--accent);
  margin-left: 4px;
  vertical-align: text-bottom;
  animation: blink 1s step-end infinite;
}

@keyframes blink {
  50% { opacity: 0; }
}

/* ── Buttons ── */
.btn-primary {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.75rem 1.75rem;
  background: var(--accent);
  color: #fff;
  font-family: var(--font-display);
  font-size: 0.85rem;
  letter-spacing: 0.04em;
  text-decoration: none;
  border: none;
  cursor: pointer;
  transition: all 0.3s;
  position: relative;
  overflow: hidden;
}

.btn-primary:hover {
  background: var(--accent-dim);
  transform: translateY(-1px);
  box-shadow: 0 8px 30px rgba(59, 130, 246, 0.25);
}

.btn-outline {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  padding: 0.5rem 1rem;
  background: transparent;
  color: var(--text-secondary);
  font-family: var(--font-display);
  font-size: 0.75rem;
  letter-spacing: 0.04em;
  text-decoration: none;
  border: 1px solid var(--border-hover);
  cursor: pointer;
  transition: all 0.3s;
}

.btn-outline:hover {
  color: var(--accent);
  border-color: var(--accent);
  background: var(--accent-glow);
}

/* ── Section headings ── */
.section-label {
  font-family: var(--font-display);
  font-size: 0.7rem;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 0.5rem;
}

.section-title {
  font-family: var(--font-display);
  font-size: clamp(1.8rem, 4vw, 2.8rem);
  font-weight: 700;
  letter-spacing: -0.02em;
  color: var(--text-primary);
}

/* ── Project cards ── */
.project-card {
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  padding: 1.75rem;
  transition: all 0.4s cubic-bezier(0.22, 1, 0.36, 1);
  position: relative;
  overflow: hidden;
}

.project-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--accent), transparent);
  opacity: 0;
  transition: opacity 0.4s;
}

.project-card:hover {
  background: var(--bg-card-hover);
  border-color: var(--border-hover);
  transform: translateY(-4px);
  box-shadow:
    0 12px 40px rgba(0, 0, 0, 0.4),
    0 0 60px var(--accent-glow);
}

.project-card:hover::before {
  opacity: 1;
}

.project-title {
  font-family: var(--font-display);
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--text-primary);
  letter-spacing: -0.01em;
}

.project-badge {
  font-family: var(--font-display);
  font-size: 0.65rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--green);
  background: rgba(34, 197, 94, 0.08);
  border: 1px solid rgba(34, 197, 94, 0.15);
  padding: 0.2rem 0.6rem;
}

.tech-pill {
  font-family: var(--font-display);
  font-size: 0.65rem;
  letter-spacing: 0.04em;
  color: var(--text-muted);
  background: rgba(255, 255, 255, 0.03);
  border: 1px solid rgba(255, 255, 255, 0.06);
  padding: 0.2rem 0.6rem;
  transition: all 0.3s;
}

.project-card:hover .tech-pill {
  color: var(--text-secondary);
  border-color: rgba(255, 255, 255, 0.1);
}

/* ── About section ── */
.skill-tag {
  font-family: var(--font-display);
  font-size: 0.75rem;
  letter-spacing: 0.03em;
  color: var(--text-secondary);
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  padding: 0.4rem 0.8rem;
  transition: all 0.3s;
}

.skill-tag:hover {
  border-color: var(--accent);
  color: var(--accent);
}

.fun-fact {
  font-family: var(--font-display);
  font-size: 0.85rem;
  color: var(--text-secondary);
  padding-left: 1rem;
  border-left: 2px solid var(--border-hover);
  transition: border-color 0.3s;
}

.fun-fact:hover {
  border-color: var(--accent);
}

/* ── Contact form ── */
.form-input {
  width: 100%;
  padding: 0.75rem 1rem;
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  color: var(--text-primary);
  font-family: var(--font-body);
  font-size: 0.95rem;
  transition: all 0.3s;
  outline: none;
}

.form-input::placeholder {
  color: var(--text-muted);
}

.form-input:focus {
  border-color: var(--accent);
  box-shadow: 0 0 0 3px var(--accent-glow);
}

.form-label {
  font-family: var(--font-display);
  font-size: 0.75rem;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--text-secondary);
}

/* ── Footer ── */
.footer-link {
  color: var(--text-muted);
  text-decoration: none;
  transition: color 0.3s;
}

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

/* ── Staggered entrance animations ── */
.fade-up {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity 0.7s cubic-bezier(0.22, 1, 0.36, 1),
              transform 0.7s cubic-bezier(0.22, 1, 0.36, 1);
}

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

/* ── Divider line ── */
.section-divider {
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--border-hover), transparent);
}

/* ── Mobile menu ── */
.mobile-menu {
  transform: translateX(100%);
  transition: transform 0.35s cubic-bezier(0.22, 1, 0.36, 1);
}

.mobile-menu.open {
  transform: translateX(0);
}

/* ── Hamburger animation ── */
.hamburger-line {
  transition: all 0.3s;
}

.hamburger.active .hamburger-line:nth-child(1) {
  transform: translateY(7px) rotate(45deg);
}

.hamburger.active .hamburger-line:nth-child(2) {
  opacity: 0;
}

.hamburger.active .hamburger-line:nth-child(3) {
  transform: translateY(-7px) rotate(-45deg);
}

/* ── Status dot pulse ── */
@keyframes pulse-dot {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.4; }
}

.status-dot {
  width: 6px;
  height: 6px;
  background: var(--green);
  border-radius: 50%;
  animation: pulse-dot 2s ease-in-out infinite;
}

/* ── Responsive adjustments ── */
@media (max-width: 640px) {
  .project-card {
    padding: 1.25rem;
  }
}