/* ============================================================
   wolemz.com — Portfolio Landing Page
   Dark-mode-first · Mobile-first · System fonts · Zero deps
   ============================================================ */

/* ----- Custom Properties ----------------------------------- */
:root {
  /* Palette */
  --bg-primary:    #0a0f1c;
  --bg-secondary:  #111827;
  --bg-card:       rgba(17, 24, 39, 0.75);
  --bg-card-hover: rgba(30, 41, 59, 0.80);
  --text-primary:  #f1f5f9;
  --text-secondary:#94a3b8;
  --text-muted:    #64748b;
  --accent:        #3b82f6;
  --accent-glow:   rgba(59, 130, 246, 0.15);
  --border:        rgba(148, 163, 184, 0.10);
  --border-hover:  rgba(148, 163, 184, 0.20);

  /* Typography */
  --font-sans: system-ui, -apple-system, BlinkMacSystemFont, 'Segoe UI',
               Roboto, 'Helvetica Neue', Arial, sans-serif;
  --font-mono: 'SF Mono', 'Cascadia Code', 'Fira Code', Consolas, monospace;

  /* Spacing */
  --nav-height: 64px;
  --section-pad: 5rem;
  --container-max: 1120px;

  /* Misc */
  --radius: 12px;
  --radius-sm: 8px;
  --transition: 0.3s ease;
}


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

html {
  scroll-behavior: smooth;
  scroll-padding-top: var(--nav-height);
  -webkit-text-size-adjust: 100%;
}

body {
  font-family: var(--font-sans);
  font-size: 1rem;
  line-height: 1.7;
  color: var(--text-primary);
  background: var(--bg-primary);
  overflow-x: hidden;               /* TROUBLESHOOTING #1 */
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

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

a {
  color: var(--accent);
  text-decoration: none;
  transition: color var(--transition);
}
a:hover { color: #60a5fa; }

ul { list-style: none; }

::selection {
  background: var(--accent);
  color: var(--bg-primary);
}


/* ----- Container ------------------------------------------- */
.container {
  width: 100%;
  max-width: var(--container-max);
  margin-inline: auto;
  padding-inline: 1.25rem;
}


/* ============================================================
   Navigation
   ============================================================ */
.nav {
  position: fixed;
  inset: 0 0 auto 0;
  z-index: 1000;
  height: var(--nav-height);
  background: transparent;
  transition: background var(--transition), box-shadow var(--transition);
}

.nav--scrolled {
  background: rgba(10, 15, 28, 0.92);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  box-shadow: 0 1px 0 var(--border);
}

.nav__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 100%;
}

/* Logo */
.nav__logo {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-weight: 700;
  font-size: 1.125rem;
  color: var(--text-primary);
  text-decoration: none;
}
.nav__logo:hover { color: var(--text-primary); }

.nav__logo-mark {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 32px;
  height: 32px;
  border-radius: var(--radius-sm);
  background: var(--accent);
  color: #fff;
  font-weight: 800;
  font-size: 0.875rem;
}

.nav__logo-text { color: var(--text-secondary); font-weight: 400; }

/* Nav links (desktop) */
.nav__links {
  display: flex;
  align-items: center;
  gap: 2rem;
}

.nav__links a {
  color: var(--text-secondary);
  font-size: 0.9rem;
  font-weight: 500;
  transition: color var(--transition);
}
.nav__links a:hover { color: var(--text-primary); }

/* Hamburger toggle (mobile only) */
.nav__toggle {
  display: none;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  width: 28px;
  height: 28px;
  border: none;
  background: none;
  cursor: pointer;
  padding: 0;
  z-index: 1001;
}

.nav__toggle span {
  display: block;
  width: 100%;
  height: 2px;
  background: var(--text-primary);
  border-radius: 2px;
  transition: transform var(--transition), opacity var(--transition);
}

/* Hamburger → X animation */
.nav__toggle.active span:nth-child(1) {
  transform: translateY(7px) rotate(45deg);
}
.nav__toggle.active span:nth-child(2) { opacity: 0; }
.nav__toggle.active span:nth-child(3) {
  transform: translateY(-7px) rotate(-45deg);
}


/* ============================================================
   Buttons
   ============================================================ */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.4rem;
  padding: 0.7rem 1.5rem;
  border-radius: var(--radius-sm);
  font-size: 0.9rem;
  font-weight: 600;
  font-family: inherit;
  cursor: pointer;
  border: 1px solid transparent;
  transition: all var(--transition);
  text-decoration: none;
  white-space: nowrap;
}

.btn--primary {
  background: var(--accent);
  color: #fff;
}
.btn--primary:hover {
  background: #2563eb;
  color: #fff;
  box-shadow: 0 4px 20px rgba(59, 130, 246, 0.35);
}

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

.btn--ghost {
  background: transparent;
  color: var(--text-secondary);
}
.btn--ghost:hover { color: var(--accent); }

.btn--small {
  padding: 0.45rem 1rem;
  font-size: 0.8rem;
  border-radius: 6px;
  background: var(--accent);
  color: #fff;
}
.btn--small:hover {
  background: #2563eb;
  color: #fff;
}


/* ============================================================
   Hero
   ============================================================ */
.hero {
  position: relative;
  display: flex;
  align-items: center;
  min-height: 100vh;
  min-height: 100dvh;
  padding: calc(var(--nav-height) + 2rem) 0 var(--section-pad);
  background: linear-gradient(160deg, #0a0f1c 0%, #1a1147 45%, #0f172a 75%, #0a0f1c 100%);
  overflow: hidden;
}

/* Dot-grid pattern overlay */
.hero::before {
  content: '';
  position: absolute;
  inset: 0;
  background-image: radial-gradient(
    circle at 1px 1px,
    rgba(255, 255, 255, 0.04) 1px,
    transparent 0
  );
  background-size: 40px 40px;
  pointer-events: none;
}

/* Glow blob */
.hero__glow {
  position: absolute;
  width: 700px;
  height: 700px;
  background: radial-gradient(circle, rgba(59, 130, 246, 0.12), transparent 70%);
  top: 40%;
  left: 55%;
  transform: translate(-50%, -50%);
  pointer-events: none;
  filter: blur(20px);
}

.hero__content {
  position: relative;
  z-index: 1;
}

.hero__label {
  font-size: 1rem;
  color: var(--accent);
  font-weight: 500;
  margin-bottom: 0.5rem;
}

.hero__name {
  font-size: clamp(2.5rem, 7vw, 4.5rem);
  font-weight: 800;
  line-height: 1.1;
  letter-spacing: -0.025em;
  margin-bottom: 0.25rem;
}

.hero__handle {
  font-family: var(--font-mono);
  font-size: 1rem;
  color: var(--text-muted);
  margin-bottom: 1rem;
}

.hero__title {
  font-size: clamp(1rem, 2.5vw, 1.35rem);
  font-weight: 400;
  color: var(--text-secondary);
  line-height: 1.5;
  margin-bottom: 1rem;
}

.hero__title-accent {
  color: var(--accent);
  font-weight: 600;
}

.hero__tagline {
  max-width: 560px;
  font-size: 1.1rem;
  color: var(--text-secondary);
  margin-bottom: 2rem;
}

.hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  margin-bottom: 3rem;
}

/* Stats row */
.hero__stats {
  display: flex;
  gap: 2.5rem;
  padding-top: 2rem;
  border-top: 1px solid var(--border);
}

.stat { text-align: left; }

.stat__value {
  display: block;
  font-size: 1.75rem;
  font-weight: 800;
  color: var(--text-primary);
  line-height: 1.2;
}

.stat__label {
  font-size: 0.8rem;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.05em;
}


/* ============================================================
   Sections (shared)
   ============================================================ */
.section {
  padding: var(--section-pad) 0;
}

.section__title {
  font-size: clamp(1.75rem, 4vw, 2.5rem);
  font-weight: 800;
  letter-spacing: -0.02em;
  margin-bottom: 0.5rem;
}

.section__subtitle {
  font-size: 1.1rem;
  color: var(--text-secondary);
  max-width: 540px;
  margin-bottom: 3rem;
}


/* ============================================================
   Capabilities
   ============================================================ */
.capabilities {
  background: var(--bg-secondary);
}

.capabilities__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1.25rem;
}

.capability-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 2rem 1.75rem;
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  transition: transform var(--transition), border-color var(--transition),
              box-shadow var(--transition);
}

.capability-card:hover {
  transform: translateY(-3px);
  border-color: var(--border-hover);
  box-shadow: 0 8px 30px rgba(0, 0, 0, 0.25);
}

.capability-card__icon {
  font-size: 2rem;
  margin-bottom: 1rem;
}

.capability-card__title {
  font-size: 1.2rem;
  font-weight: 700;
  margin-bottom: 0.5rem;
}

.capability-card__desc {
  color: var(--text-secondary);
  font-size: 0.95rem;
}


/* ============================================================
   Projects
   ============================================================ */
.projects__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1.25rem;
}

.project-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-left: 3px solid var(--accent, var(--accent));
  border-radius: var(--radius);
  padding: 1.5rem;
  transition: transform var(--transition), box-shadow var(--transition),
              border-color var(--transition);
}

.project-card:hover {
  transform: translateY(-4px);
  box-shadow: 0 8px 30px rgba(0, 0, 0, 0.3),
              0 0 0 1px var(--accent, var(--accent));
}

.project-card__header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 0.75rem;
}

.project-card__icon { font-size: 1.75rem; }

.project-card__version {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--text-muted);
  background: rgba(148, 163, 184, 0.08);
  padding: 0.2rem 0.55rem;
  border-radius: 4px;
}

.project-card__name {
  font-size: 1.15rem;
  font-weight: 700;
  margin-bottom: 0.4rem;
}

.project-card__desc {
  font-size: 0.9rem;
  color: var(--text-secondary);
  margin-bottom: 1rem;
  line-height: 1.6;
}

/* Tech tags */
.project-card__tags {
  display: flex;
  flex-wrap: wrap;
  gap: 0.4rem;
}

.tag {
  display: inline-block;
  font-size: 0.72rem;
  font-weight: 600;
  color: var(--accent);
  background: var(--accent-glow);
  padding: 0.2rem 0.6rem;
  border-radius: 4px;
  text-transform: uppercase;
  letter-spacing: 0.03em;
}


/* ============================================================
   About
   ============================================================ */
.about {
  background: var(--bg-secondary);
}

.about__layout {
  display: grid;
  grid-template-columns: 1fr;
  gap: 3rem;
}

.about__text p {
  color: var(--text-secondary);
  margin-bottom: 1rem;
}

.about__text strong { color: var(--text-primary); }

.about__heading {
  font-size: 0.85rem;
  font-weight: 700;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.06em;
  margin-bottom: 0.75rem;
}

/* Skill tags */
.skill-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  margin-bottom: 2rem;
}

.skill-tag {
  font-size: 0.8rem;
  font-weight: 500;
  color: var(--text-primary);
  background: rgba(148, 163, 184, 0.08);
  border: 1px solid var(--border);
  padding: 0.35rem 0.75rem;
  border-radius: 6px;
  transition: border-color var(--transition);
}

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

/* Languages */
.lang-list {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

.lang-list li {
  font-size: 0.95rem;
  color: var(--text-secondary);
}

.lang-list strong { color: var(--text-primary); }

.lang-note {
  font-size: 0.8rem;
  color: var(--text-muted);
}


/* ============================================================
   Footer / Contact
   ============================================================ */
.footer {
  padding: var(--section-pad) 0 2rem;
  text-align: center;
}

.footer .section__title { margin-bottom: 0.75rem; }

.footer__subtitle {
  font-size: 1.05rem;
  color: var(--text-secondary);
  margin-bottom: 2.5rem;
}

.footer__links {
  display: flex;
  justify-content: center;
  flex-wrap: wrap;
  gap: 1rem;
  margin-bottom: 3rem;
}

.footer__link {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.7rem 1.4rem;
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  color: var(--text-secondary);
  font-weight: 500;
  font-size: 0.9rem;
  transition: all var(--transition);
}

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

.footer__link-icon { font-size: 1.1rem; }

.footer__bottom {
  padding-top: 2rem;
  border-top: 1px solid var(--border);
  font-size: 0.8rem;
  color: var(--text-muted);
}

.footer__bottom a {
  color: var(--text-muted);
}
.footer__bottom a:hover { color: var(--accent); }


/* ============================================================
   Scroll-to-top Button
   ============================================================ */
.scroll-top {
  position: fixed;
  bottom: 1.5rem;
  right: 1.5rem;
  z-index: 900;
  width: 44px;
  height: 44px;
  border: 1px solid var(--border);
  border-radius: 50%;
  background: rgba(10, 15, 28, 0.85);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  color: var(--text-secondary);
  font-size: 1.2rem;
  cursor: pointer;
  opacity: 0;
  visibility: hidden;
  transform: translateY(10px);
  transition: opacity var(--transition), visibility var(--transition),
              transform var(--transition), border-color var(--transition);
}

.scroll-top.visible {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}

.scroll-top:hover {
  border-color: var(--accent);
  color: var(--accent);
}


/* ============================================================
   Scroll-reveal Animation
   ============================================================ */
.reveal {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity 0.65s ease, transform 0.65s ease;
}

.reveal.revealed {
  opacity: 1;
  transform: translateY(0);
}

/* Stagger children inside grids */
.capabilities__grid .reveal:nth-child(2) { transition-delay: 0.1s; }
.capabilities__grid .reveal:nth-child(3) { transition-delay: 0.2s; }

.projects__grid .reveal:nth-child(2) { transition-delay: 0.05s; }
.projects__grid .reveal:nth-child(3) { transition-delay: 0.10s; }
.projects__grid .reveal:nth-child(4) { transition-delay: 0.15s; }
.projects__grid .reveal:nth-child(5) { transition-delay: 0.20s; }
.projects__grid .reveal:nth-child(6) { transition-delay: 0.25s; }
.projects__grid .reveal:nth-child(7) { transition-delay: 0.30s; }
.projects__grid .reveal:nth-child(8) { transition-delay: 0.35s; }


/* ============================================================
   Responsive — Tablet (≥ 768px)
   ============================================================ */
@media (min-width: 768px) {
  .container { padding-inline: 2rem; }

  /* Nav: keep horizontal, hide hamburger */
  .nav__toggle { display: none; }

  /* Capabilities: 3-col */
  .capabilities__grid {
    grid-template-columns: repeat(3, 1fr);
  }

  /* Projects: 2-col */
  .projects__grid {
    grid-template-columns: repeat(2, 1fr);
  }

  /* About: 2-col */
  .about__layout {
    grid-template-columns: 1.2fr 1fr;
    align-items: start;
  }

  /* Stats spread out */
  .hero__stats { gap: 3.5rem; }
}


/* ============================================================
   Responsive — Desktop (≥ 1024px)
   ============================================================ */
@media (min-width: 1024px) {
  /* Projects: 3-col */
  .projects__grid {
    grid-template-columns: repeat(3, 1fr);
  }
}


/* ============================================================
   Responsive — Mobile (< 768px)
   ============================================================ */
@media (max-width: 767px) {
  :root {
    --section-pad: 3.5rem;
  }

  /* Hamburger visible */
  .nav__toggle { display: flex; }

  /* Mobile menu overlay */
  .nav__links {
    position: fixed;
    inset: 0;
    z-index: 999;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 2rem;
    background: rgba(10, 15, 28, 0.96);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    opacity: 0;
    visibility: hidden;
    transition: opacity 0.3s ease, visibility 0.3s;
  }

  .nav__links.active {
    opacity: 1;
    visibility: visible;
  }

  .nav__links a {
    font-size: 1.25rem;
    color: var(--text-primary);
  }

  .nav__links .btn--small {
    font-size: 1rem;
    padding: 0.65rem 1.5rem;
  }

  /* Hero */
  .hero {
    padding-top: calc(var(--nav-height) + 1.5rem);
    text-align: left;
  }

  .hero__stats {
    gap: 1.5rem;
  }

  .hero__actions {
    flex-direction: column;
    align-items: flex-start;
  }

  /* Footer links stack */
  .footer__links {
    flex-direction: column;
    align-items: center;
  }
}


/* ============================================================
   Accessibility — Reduced Motion
   ============================================================ */
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }

  .reveal {
    opacity: 1;
    transform: none;
    transition: none;
  }

  .capability-card,
  .project-card,
  .scroll-top {
    transition: none;
  }
}