/* ============================================================
   Brad Guider — Portfolio Site Styles
   Dark theme, responsive, mobile-first
   ============================================================ */

/* ── Reset & base ─────────────────────────────────────────── */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

:root {
  /* Palette */
  --bg-primary:   #0a0a0f;
  --bg-secondary: #11111a;
  --bg-card:      #16161f;
  --bg-card-hover:#1c1c28;
  --border:       rgba(255,255,255,0.08);
  --border-hover: rgba(79,142,247,0.5);

  --text-primary:   #f0f0f5;
  --text-secondary: #9090a8;
  --text-muted:     #5a5a72;

  --accent:       #4f8ef7;
  --accent-dark:  #3a74e0;
  --accent-glow:  rgba(79,142,247,0.15);

  --green:  #22c55e;
  --purple: #a855f7;
  --orange: #f97316;
  --teal:   #14b8a6;
  --pink:   #ec4899;
  --red:    #ef4444;
  --yellow: #eab308;

  /* Typography */
  --font: 'Inter', system-ui, -apple-system, sans-serif;
  --radius: 12px;
  --radius-lg: 20px;

  /* Spacing */
  --section-py: 5rem;

  /* Transitions */
  --trans: 0.2s ease;
  --trans-slow: 0.35s ease;
}

html {
  scroll-behavior: smooth;
  font-size: 16px;
}

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

a {
  color: var(--accent);
  text-decoration: none;
  transition: color var(--trans);
}
a:hover { color: #fff; }

img { display: block; max-width: 100%; }

ul { list-style: none; }

/* ── Utility ──────────────────────────────────────────────── */
.container {
  width: 100%;
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 1.25rem;
}

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

/* ── Navigation ───────────────────────────────────────────── */
.nav {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 100;
  padding: 0.875rem 0;
  background: rgba(10, 10, 15, 0.85);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid transparent;
  transition: border-color var(--trans-slow), background var(--trans-slow);
}

.nav.scrolled {
  border-bottom-color: var(--border);
  background: rgba(10, 10, 15, 0.96);
}

.nav-inner {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 1.25rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
}

.nav-brand {
  font-size: 1.25rem;
  font-weight: 800;
  letter-spacing: -0.02em;
  color: var(--accent);
  text-decoration: none;
  flex-shrink: 0;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 0.25rem;
  flex-wrap: wrap;
}

.nav-links a {
  color: var(--text-secondary);
  font-size: 0.9rem;
  font-weight: 500;
  padding: 0.375rem 0.75rem;
  border-radius: 8px;
  transition: color var(--trans), background var(--trans);
}
.nav-links a:hover {
  color: var(--text-primary);
  background: rgba(255,255,255,0.05);
}

.nav-toggle {
  display: none;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 4px;
}
.nav-toggle span {
  display: block;
  width: 22px;
  height: 2px;
  background: var(--text-primary);
  border-radius: 2px;
  transition: transform var(--trans), opacity var(--trans);
}

/* ── Buttons ─────────────────────────────────────────────── */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.75rem 1.5rem;
  border-radius: var(--radius);
  font-family: var(--font);
  font-size: 0.95rem;
  font-weight: 600;
  cursor: pointer;
  transition: all var(--trans);
  text-decoration: none;
  white-space: nowrap;
}

.btn-sm {
  padding: 0.4rem 0.875rem;
  font-size: 0.85rem;
  border-radius: 8px;
}

.btn-primary {
  background: var(--accent);
  color: #fff;
  border: 1px solid var(--accent);
}
.btn-primary:hover {
  background: var(--accent-dark);
  border-color: var(--accent-dark);
  color: #fff;
  transform: translateY(-1px);
  box-shadow: 0 4px 20px var(--accent-glow);
}

.btn-secondary {
  background: rgba(255,255,255,0.07);
  color: var(--text-primary);
  border: 1px solid var(--border);
}
.btn-secondary:hover {
  background: rgba(255,255,255,0.12);
  border-color: rgba(255,255,255,0.2);
  color: #fff;
  transform: translateY(-1px);
}

.btn-outline {
  background: transparent;
  color: var(--accent);
  border: 1px solid currentColor;
}
.btn-outline:hover {
  background: var(--accent-glow);
  color: var(--accent);
}

.btn-icon {
  width: 1.1em;
  height: 1.1em;
  flex-shrink: 0;
}

/* ── Section layout ──────────────────────────────────────── */
.section {
  padding: var(--section-py) 0;
}

.section-alt {
  background: var(--bg-secondary);
}

.section-header {
  margin-bottom: 3rem;
  text-align: center;
}

.section-label {
  display: inline-block;
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 0.75rem;
}

.section-title {
  font-size: clamp(1.75rem, 4vw, 2.5rem);
  font-weight: 800;
  letter-spacing: -0.03em;
  color: var(--text-primary);
  line-height: 1.15;
}

.section-desc {
  margin-top: 0.875rem;
  font-size: 1.05rem;
  color: var(--text-secondary);
  max-width: 600px;
  margin-left: auto;
  margin-right: auto;
}

/* ── Hero ────────────────────────────────────────────────── */
.hero {
  position: relative;
  min-height: 100svh;
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
  padding: 6rem 0 4rem;
}

.hero-bg-grid {
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(79,142,247,0.04) 1px, transparent 1px),
    linear-gradient(90deg, rgba(79,142,247,0.04) 1px, transparent 1px);
  background-size: 48px 48px;
  mask-image: radial-gradient(ellipse 80% 80% at 50% 50%, black 30%, transparent 100%);
  -webkit-mask-image: radial-gradient(ellipse 80% 80% at 50% 50%, black 30%, transparent 100%);
}

.hero-content {
  position: relative;
  z-index: 1;
  text-align: center;
  max-width: 800px;
  margin: 0 auto;
}

.hero-badge {
  display: inline-block;
  padding: 0.35rem 1rem;
  border-radius: 100px;
  background: rgba(79,142,247,0.12);
  border: 1px solid rgba(79,142,247,0.3);
  font-size: 0.8rem;
  font-weight: 600;
  letter-spacing: 0.05em;
  color: var(--accent);
  text-transform: uppercase;
  margin-bottom: 1.5rem;
}

.hero-name {
  font-size: clamp(3rem, 8vw, 5.5rem);
  font-weight: 800;
  letter-spacing: -0.04em;
  line-height: 1.05;
  margin-bottom: 1rem;
}

.hero-tagline {
  font-size: clamp(1.1rem, 2.5vw, 1.5rem);
  font-weight: 600;
  color: var(--text-secondary);
  margin-bottom: 0.875rem;
}

.hero-tagline strong { color: var(--accent); }

.hero-subtitle {
  font-size: 1rem;
  color: var(--text-muted);
  max-width: 580px;
  margin: 0 auto 2.5rem;
  line-height: 1.7;
}

.hero-ctas {
  display: flex;
  flex-wrap: wrap;
  gap: 0.875rem;
  justify-content: center;
}

.hero-scroll-indicator {
  position: absolute;
  bottom: 2rem;
  left: 50%;
  transform: translateX(-50%);
}

.scroll-dot {
  display: block;
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--text-muted);
  animation: scrollBounce 2s ease-in-out infinite;
}

@keyframes scrollBounce {
  0%, 100% { transform: translateY(0); opacity: 0.4; }
  50% { transform: translateY(8px); opacity: 0.9; }
}

/* ── About ───────────────────────────────────────────────── */
.about-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 3rem;
}

.about-text p {
  color: var(--text-secondary);
  font-size: 1.05rem;
  line-height: 1.8;
  margin-bottom: 1.25rem;
}
.about-text p:last-child { margin-bottom: 0; }
.about-text strong { color: var(--text-primary); }

.about-stats {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1rem;
}

.stat-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1.5rem;
  text-align: center;
  transition: border-color var(--trans), transform var(--trans);
}
.stat-card:hover {
  border-color: var(--border-hover);
  transform: translateY(-2px);
}

.stat-number {
  font-size: 1.6rem;
  font-weight: 800;
  letter-spacing: -0.03em;
  line-height: 1.1;
  margin-bottom: 0.5rem;
}

.stat-label {
  font-size: 0.82rem;
  color: var(--text-muted);
  line-height: 1.4;
}

/* ── Projects ────────────────────────────────────────────── */
.projects-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1.5rem;
}

.project-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  transition: border-color var(--trans-slow), transform var(--trans-slow), box-shadow var(--trans-slow);
  overflow: hidden;
}
.project-card:hover {
  border-color: var(--border-hover);
  transform: translateY(-4px);
  box-shadow: 0 12px 40px rgba(79,142,247,0.1);
}

.project-card.featured {
  border-color: rgba(79,142,247,0.2);
  background: linear-gradient(135deg, var(--bg-card) 0%, rgba(79,142,247,0.03) 100%);
}
.project-card.featured:hover {
  border-color: rgba(79,142,247,0.5);
  box-shadow: 0 12px 48px rgba(79,142,247,0.15);
}

.project-card-inner {
  padding: 1.75rem;
  display: flex;
  flex-direction: column;
  gap: 1.25rem;
  height: 100%;
}

.project-title-row {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  flex-wrap: wrap;
  margin-bottom: 0.25rem;
}

.project-name {
  font-size: 1.35rem;
  font-weight: 700;
  color: var(--text-primary);
  letter-spacing: -0.02em;
}

.flagship-badge {
  font-size: 0.72rem;
  font-weight: 700;
  padding: 0.2rem 0.6rem;
  border-radius: 100px;
  background: rgba(79,142,247,0.15);
  border: 1px solid rgba(79,142,247,0.3);
  color: var(--accent);
  letter-spacing: 0.02em;
  white-space: nowrap;
}

.project-full-name {
  font-size: 0.9rem;
  color: var(--text-muted);
  font-style: italic;
  margin-top: -0.5rem;
}

.project-description {
  color: var(--text-secondary);
  font-size: 0.95rem;
  line-height: 1.7;
}

.project-highlights ul {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}
.project-highlights li {
  color: var(--text-secondary);
  font-size: 0.88rem;
  padding-left: 1.25rem;
  position: relative;
  line-height: 1.5;
}
.project-highlights li::before {
  content: '▹';
  position: absolute;
  left: 0;
  color: var(--accent);
  font-size: 0.8rem;
  top: 1px;
}

.project-tech {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  margin-top: auto;
}

/* Tech badges */
.badge {
  display: inline-block;
  padding: 0.25rem 0.65rem;
  border-radius: 100px;
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.02em;
}

.badge-python    { background: rgba(59,130,246,0.15); color: #60a5fa; border: 1px solid rgba(59,130,246,0.25); }
.badge-ts        { background: rgba(56,189,248,0.12); color: #38bdf8; border: 1px solid rgba(56,189,248,0.25); }
.badge-js        { background: rgba(234,179,8,0.12);  color: #eab308; border: 1px solid rgba(234,179,8,0.25); }
.badge-react     { background: rgba(20,184,166,0.12); color: #2dd4bf; border: 1px solid rgba(20,184,166,0.25); }
.badge-db        { background: rgba(99,102,241,0.12); color: #a78bfa; border: 1px solid rgba(99,102,241,0.25); }
.badge-docker    { background: rgba(6,182,212,0.12);  color: #22d3ee; border: 1px solid rgba(6,182,212,0.25); }
.badge-playwright{ background: rgba(34,197,94,0.12);  color: #4ade80; border: 1px solid rgba(34,197,94,0.25); }
.badge-actions   { background: rgba(168,85,247,0.12); color: #c084fc; border: 1px solid rgba(168,85,247,0.25); }
.badge-azure     { background: rgba(14,165,233,0.12); color: #38bdf8; border: 1px solid rgba(14,165,233,0.25); }
.badge-html      { background: rgba(249,115,22,0.12); color: #fb923c; border: 1px solid rgba(249,115,22,0.25); }
.badge-css       { background: rgba(236,72,153,0.12); color: #f472b6; border: 1px solid rgba(236,72,153,0.25); }
.badge-generic   { background: rgba(148,163,184,0.1); color: #94a3b8; border: 1px solid rgba(148,163,184,0.2); }

.project-links {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  padding-top: 0.25rem;
}

.project-link {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--text-secondary);
  padding: 0.4rem 0.875rem;
  border-radius: 8px;
  border: 1px solid var(--border);
  background: rgba(255,255,255,0.04);
  transition: all var(--trans);
}
.project-link svg {
  width: 14px;
  height: 14px;
  flex-shrink: 0;
}
.project-link:hover {
  color: var(--text-primary);
  border-color: rgba(255,255,255,0.2);
  background: rgba(255,255,255,0.08);
}

.project-link-demo {
  color: var(--accent);
  border-color: rgba(79,142,247,0.3);
  background: rgba(79,142,247,0.07);
}
.project-link-demo:hover {
  color: #fff;
  background: var(--accent);
  border-color: var(--accent);
}

/* ── Skills ──────────────────────────────────────────────── */
.skills-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1.25rem;
}

.skill-group {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1.5rem;
  transition: border-color var(--trans);
}
.skill-group:hover { border-color: rgba(79,142,247,0.3); }

.skill-group-title {
  font-size: 0.9rem;
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: 0.875rem;
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.skill-icon { font-size: 1rem; }

.skill-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
}

.skill-tag {
  display: inline-block;
  padding: 0.3rem 0.75rem;
  border-radius: 100px;
  background: rgba(79,142,247,0.08);
  border: 1px solid rgba(79,142,247,0.15);
  color: var(--text-secondary);
  font-size: 0.82rem;
  font-weight: 500;
  transition: all var(--trans);
}
.skill-tag:hover {
  background: rgba(79,142,247,0.15);
  border-color: rgba(79,142,247,0.35);
  color: var(--text-primary);
}

/* ── Footer ──────────────────────────────────────────────── */
.footer {
  background: var(--bg-secondary);
  border-top: 1px solid var(--border);
  padding: 4rem 0 2rem;
}

.footer-inner {
  display: grid;
  grid-template-columns: 1fr;
  gap: 2.5rem;
  margin-bottom: 3rem;
}

.footer-logo {
  width: 48px;
  height: 48px;
  background: var(--accent);
  border-radius: 10px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1rem;
  font-weight: 800;
  color: #fff;
  margin-bottom: 0.875rem;
}

.footer-tagline {
  font-size: 0.9rem;
  color: var(--text-muted);
  max-width: 260px;
  line-height: 1.5;
}

.footer-links h4 {
  font-size: 0.8rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--text-muted);
  margin-bottom: 1rem;
}

.footer-links ul {
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}

.footer-links a {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  color: var(--text-secondary);
  font-size: 0.9rem;
  transition: color var(--trans);
}
.footer-links a:hover { color: var(--text-primary); }
.footer-links a svg {
  width: 15px;
  height: 15px;
  flex-shrink: 0;
}

.footer-bottom {
  border-top: 1px solid var(--border);
  padding-top: 1.5rem;
  text-align: center;
}

.footer-bottom p {
  color: var(--text-muted);
  font-size: 0.85rem;
}

/* ── Responsive ──────────────────────────────────────────── */

/* Tablet: 640px+ */
@media (min-width: 640px) {
  .about-stats {
    grid-template-columns: repeat(2, 1fr);
  }

  .projects-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .skills-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .footer-inner {
    grid-template-columns: repeat(2, 1fr);
  }
}

/* Desktop: 1024px+ */
@media (min-width: 1024px) {
  .about-grid {
    grid-template-columns: 3fr 2fr;
    align-items: start;
    gap: 4rem;
  }

  .projects-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  /* Featured cards (first two) span full row on large screens */
  .project-card.featured:nth-child(1),
  .project-card.featured:nth-child(2) {
    /* keep 2-col */
  }

  .skills-grid {
    grid-template-columns: repeat(3, 1fr);
  }

  .footer-inner {
    grid-template-columns: 2fr 1fr 1fr;
  }
}

/* Mobile nav toggle */
@media (max-width: 767px) {
  .nav-toggle {
    display: flex;
  }

  .nav-links {
    display: none;
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    background: rgba(10, 10, 15, 0.98);
    border-bottom: 1px solid var(--border);
    padding: 1rem 1.25rem 1.5rem;
    flex-direction: column;
    align-items: flex-start;
    gap: 0.25rem;
  }

  .nav-links.open {
    display: flex;
  }

  .nav-links a {
    width: 100%;
    padding: 0.6rem 0.75rem;
  }

  .nav-links .btn {
    margin-top: 0.5rem;
  }
}