/* =============================================================
   style.css — Josh's Portfolio
   Shared stylesheet for all pages.
   To change the accent color, update --accent in :root below.
   ============================================================= */


/* ---------------------------------------------------------------
   1. CSS Custom Properties (design tokens)
--------------------------------------------------------------- */
:root {
  /* Backgrounds */
  --bg-primary:    #0d0d0f;   /* page background */
  --bg-secondary:  #131316;   /* nav / footer */
  --bg-card:       #16161a;   /* card / aside backgrounds */
  --bg-card-hover: #1e1e24;   /* card hover state */

  /* Text */
  --text-primary:   #e2e2e8;  /* body copy */
  --text-secondary: #9898aa;  /* metadata, captions */
  --text-muted:     #55556a;  /* placeholders, borders-adjacent */

  /* Accent — change this one value to retheme the whole site */
  --accent:       #00e5c0;               /* cyan-green terminal feel */
  --accent-dim:   #00a88c;               /* darker variant for hover */
  --accent-glow:  rgba(0, 229, 192, 0.10); /* subtle glow / tint */

  /* Borders */
  --border:        #22222c;
  --border-accent: rgba(0, 229, 192, 0.25);

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

  /* Layout */
  --max-width:  860px;
  --nav-height: 62px;
  --radius:     6px;
  --radius-lg:  10px;
}


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

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

body {
  background-color: var(--bg-primary);
  color: var(--text-primary);
  font-family: var(--font-sans);
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

main {
  flex: 1;
}

a {
  color: var(--accent);
  text-decoration: none;
  transition: color 0.2s ease, opacity 0.2s ease;
}

a:hover {
  color: var(--accent-dim);
  text-decoration: underline;
}

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

ul {
  list-style: none;
}


/* ---------------------------------------------------------------
   3. Layout Utilities
--------------------------------------------------------------- */
.container {
  width: 100%;
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 1.5rem;
}

.section {
  padding: 4rem 0;
}

.section + .section {
  border-top: 1px solid var(--border);
}


/* ---------------------------------------------------------------
   4. Typography
--------------------------------------------------------------- */
h1, h2, h3, h4 {
  line-height: 1.3;
  font-weight: 600;
  color: var(--text-primary);
}

h1 { font-size: clamp(1.8rem, 4vw, 2.6rem); }
h2 { font-size: clamp(1.3rem, 3vw, 1.75rem); }
h3 { font-size: 1.15rem; }
h4 { font-size: 1rem; }

p {
  color: var(--text-secondary);
  max-width: 68ch;
}

/* Accent-colored label/badge */
.label {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--accent);
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

/* Section heading with an accent line */
.section-title {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  margin-bottom: 2rem;
}

.section-title::before {
  content: '';
  display: inline-block;
  width: 3px;
  height: 1.4em;
  background: var(--accent);
  border-radius: 2px;
  flex-shrink: 0;
}


/* ---------------------------------------------------------------
   5. Navigation
--------------------------------------------------------------- */
.nav {
  position: sticky;
  top: 0;
  z-index: 100;
  height: var(--nav-height);
  border-bottom: 1px solid var(--border);
  /* subtle backdrop blur for depth */
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  background-color: rgba(19, 19, 22, 0.92);
}

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

/* Site logo / name */
.nav-logo {
  font-family: var(--font-mono);
  font-size: 1rem;
  color: var(--text-primary);
  font-weight: 600;
  letter-spacing: -0.02em;
  text-decoration: none;
}

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

.nav-logo:hover {
  opacity: 0.85;
  text-decoration: none;
}

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

.nav-links a {
  font-size: 0.9rem;
  color: var(--text-secondary);
  padding: 0.4rem 0.75rem;
  border-radius: var(--radius);
  text-decoration: none;
  transition: color 0.2s ease, background 0.2s ease;
}

.nav-links a:hover,
.nav-links a.active {
  color: var(--text-primary);
  background: var(--bg-card);
}

/* Current page link */
.nav-links a.active {
  color: var(--accent);
}


/* ---------------------------------------------------------------
   6. Hero Section (index.html)
--------------------------------------------------------------- */
.hero {
  padding: 5rem 0 4rem;
}

/* Two-column flex layout: text left, emoji right */
.hero-layout {
  display: flex;
  align-items: center;
  gap: 3rem;
}

.hero-text {
  flex: 1 1 0;
  min-width: 0; /* prevent flex blowout */
}

.hero-visual {
  flex: 0 0 auto;
  /* subtle accent-colored glow behind the photo */
  filter: drop-shadow(0 0 24px rgba(0, 229, 192, 0.18));
}

/* Circular profile photo */
.hero-photo {
  width:  clamp(180px, 22vw, 260px);
  height: clamp(180px, 22vw, 260px);
  border-radius: 50%;
  object-fit: cover;
  /* Shift the crop slightly upward so the face stays in frame */
  object-position: center 20%;
  border: 2px solid var(--border-accent);
  display: block;
  /* Encourage the browser to use higher-quality downscaling */
  image-rendering: -webkit-optimize-contrast;
  image-rendering: crisp-edges;
  /* Push rendering onto the GPU — fixes a Chrome bug where downscaled images appear soft */
  transform: translateZ(0);
  -webkit-backface-visibility: hidden;
          backface-visibility: hidden;
}

/* Stack vertically on mobile */
@media (max-width: 640px) {
  .hero-layout {
    flex-direction: column-reverse; /* photo on top feels more natural on small screens */
    align-items: flex-start;
    gap: 1.5rem;
  }

  .hero-photo {
    width:  150px;
    height: 150px;
  }
}

.hero-name {
  font-size: clamp(2.2rem, 6vw, 3.4rem);
  font-weight: 700;
  letter-spacing: -0.03em;
  color: var(--text-primary);
  line-height: 1.15;
  margin-bottom: 0.5rem;
}

.hero-title {
  font-size: clamp(1rem, 2.5vw, 1.25rem);
  color: var(--text-secondary);
  font-weight: 400;
  margin-bottom: 1.5rem;
}

.hero-bio {
  font-size: 1.05rem;
  color: var(--text-secondary);
  max-width: 56ch;
  line-height: 1.8;
  margin-bottom: 2rem;
}

/* CTA button group */
.btn-group {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
}

.btn {
  display: inline-block;
  padding: 0.55rem 1.25rem;
  border-radius: var(--radius);
  font-size: 0.9rem;
  font-weight: 500;
  text-decoration: none;
  transition: all 0.2s ease;
  cursor: pointer;
  border: none;
}

/* Primary filled button */
.btn-primary {
  background: var(--accent);
  color: #0d0d0f;
}

.btn-primary:hover {
  background: var(--accent-dim);
  color: #0d0d0f;
  text-decoration: none;
}

/* Ghost / outlined button */
.btn-ghost {
  background: transparent;
  color: var(--accent);
  border: 1px solid var(--border-accent);
}

.btn-ghost:hover {
  background: var(--accent-glow);
  text-decoration: none;
}


/* ---------------------------------------------------------------
   7. Cards (shared between index + projects)
--------------------------------------------------------------- */
.card-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 1.25rem;
}

.card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 1.5rem;
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
  transition: border-color 0.2s ease, background 0.2s ease, transform 0.2s ease;
  text-decoration: none;
  color: inherit;
}

.card:hover {
  border-color: var(--border-accent);
  background: var(--bg-card-hover);
  transform: translateY(-2px);
  text-decoration: none;
}

.card-icon {
  font-size: 1.5rem;
  line-height: 1;
}

.card-title {
  font-size: 1.05rem;
  font-weight: 600;
  color: var(--text-primary);
}

.card-desc {
  font-size: 0.9rem;
  color: var(--text-secondary);
  line-height: 1.65;
  flex: 1;
  max-width: 100%;
}

/* Tag list inside a card */
.tag-list {
  display: flex;
  flex-wrap: wrap;
  gap: 0.4rem;
  margin-top: 0.25rem;
}

.tag {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  color: var(--accent);
  background: var(--accent-glow);
  border: 1px solid var(--border-accent);
  border-radius: 4px;
  padding: 0.15rem 0.55rem;
  letter-spacing: 0.04em;
}

/* "View project →" link within a card */
.card-link {
  font-size: 0.85rem;
  color: var(--accent);
  font-weight: 500;
  margin-top: auto;
  display: inline-flex;
  align-items: center;
  gap: 0.3rem;
}

.card-link::after {
  content: '→';
  transition: transform 0.2s ease;
}

.card:hover .card-link::after {
  transform: translateX(3px);
}


/* ---------------------------------------------------------------
   8. Blog Post List (blog.html)
--------------------------------------------------------------- */
.post-list {
  display: flex;
  flex-direction: column;
}

.post-item {
  display: flex;
  flex-direction: column;
  gap: 0.4rem;
  padding: 1.75rem 0;
  border-bottom: 1px solid var(--border);
  text-decoration: none;
  color: inherit;
  transition: padding-left 0.2s ease;
}

.post-item:first-child {
  border-top: 1px solid var(--border);
}

.post-item:hover {
  padding-left: 0.5rem;
}

.post-meta {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  font-family: var(--font-mono);
  font-size: 0.78rem;
  color: var(--text-muted);
}

.post-meta .separator {
  color: var(--border);
}

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

.post-title {
  font-size: 1.2rem;
  font-weight: 600;
  color: var(--text-primary);
  transition: color 0.2s ease;
}

.post-item:hover .post-title {
  color: var(--accent);
}

.post-excerpt {
  font-size: 0.9rem;
  color: var(--text-secondary);
  max-width: 64ch;
  line-height: 1.65;
}


/* ---------------------------------------------------------------
   9. Article / Blog Post Page (post-template.html)
--------------------------------------------------------------- */
.article-header {
  padding: 3.5rem 0 2.5rem;
  border-bottom: 1px solid var(--border);
  margin-bottom: 3rem;
}

.article-category {
  font-family: var(--font-mono);
  font-size: 0.78rem;
  color: var(--accent);
  letter-spacing: 0.08em;
  text-transform: uppercase;
  margin-bottom: 1rem;
  display: block;
}

.article-title {
  font-size: clamp(1.6rem, 4vw, 2.4rem);
  font-weight: 700;
  letter-spacing: -0.02em;
  color: var(--text-primary);
  line-height: 1.2;
  margin-bottom: 1rem;
}

.article-meta {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.75rem;
  font-family: var(--font-mono);
  font-size: 0.8rem;
  color: var(--text-muted);
}

/* Article body — prose styles */
.article-body {
  max-width: 68ch;
}

.article-body p {
  color: var(--text-secondary);
  font-size: 1.025rem;
  line-height: 1.85;
  margin-bottom: 1.5rem;
  max-width: 100%;
}

.article-body h2 {
  font-size: 1.4rem;
  color: var(--text-primary);
  margin: 2.5rem 0 1rem;
  padding-bottom: 0.4rem;
  border-bottom: 1px solid var(--border);
}

.article-body h3 {
  font-size: 1.1rem;
  color: var(--text-primary);
  margin: 2rem 0 0.75rem;
}

.article-body ul,
.article-body ol {
  color: var(--text-secondary);
  font-size: 1.025rem;
  line-height: 1.8;
  padding-left: 1.5rem;
  margin-bottom: 1.5rem;
  list-style: disc;
}

.article-body ol {
  list-style: decimal;
}

.article-body li {
  margin-bottom: 0.35rem;
}

/* Inline code */
.article-body code {
  font-family: var(--font-mono);
  font-size: 0.88em;
  color: var(--accent);
  background: var(--accent-glow);
  border: 1px solid var(--border-accent);
  padding: 0.15em 0.45em;
  border-radius: 4px;
}

/* Code block */
.article-body pre {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 1.25rem 1.5rem;
  overflow-x: auto;
  margin-bottom: 1.5rem;
}

.article-body pre code {
  background: none;
  border: none;
  padding: 0;
  font-size: 0.88rem;
  color: var(--text-primary);
}

/* Blockquote */
.article-body blockquote {
  border-left: 3px solid var(--accent);
  margin: 1.5rem 0;
  padding: 0.75rem 1.25rem;
  background: var(--accent-glow);
  border-radius: 0 var(--radius) var(--radius) 0;
}

.article-body blockquote p {
  color: var(--text-primary);
  margin-bottom: 0;
  font-style: italic;
}

/* Back to blog link above article */
.back-link {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  font-size: 0.85rem;
  color: var(--text-secondary);
  margin-top: 2.5rem;
  margin-bottom: 2.5rem;
  font-family: var(--font-mono);
  transition: color 0.2s ease;
  text-decoration: none;
}

.back-link::before {
  content: '←';
}

.back-link:hover {
  color: var(--accent);
  text-decoration: none;
}


/* ---------------------------------------------------------------
   10. Projects Page Header
--------------------------------------------------------------- */
.page-header {
  padding: 3.5rem 0 2.5rem;
}

.page-header h1 {
  margin-top: 0.6rem;
}

.page-header p {
  margin-top: 0.75rem;
  font-size: 1.05rem;
}


/* ---------------------------------------------------------------
   11. Footer
--------------------------------------------------------------- */
.footer {
  background: var(--bg-secondary);
  border-top: 1px solid var(--border);
  padding: 2.5rem 0;
  margin-top: auto;
}

.footer-inner {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
}

.footer-copy {
  font-size: 0.85rem;
  color: var(--text-muted);
  font-family: var(--font-mono);
}

.footer-links {
  display: flex;
  gap: 1.5rem;
}

.footer-links a {
  font-size: 0.85rem;
  color: var(--text-muted);
  text-decoration: none;
  transition: color 0.2s ease;
}

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


/* ---------------------------------------------------------------
   12. Divider / Horizontal Rule
--------------------------------------------------------------- */
.divider {
  border: none;
  border-top: 1px solid var(--border);
  margin: 0;
}


/* ---------------------------------------------------------------
   13. "View all" inline link row
--------------------------------------------------------------- */
.view-all-row {
  display: flex;
  justify-content: flex-end;
  margin-top: 1.5rem;
}

.view-all {
  font-size: 0.875rem;
  color: var(--accent);
  font-family: var(--font-mono);
  display: inline-flex;
  align-items: center;
  gap: 0.3rem;
  text-decoration: none;
  transition: gap 0.2s ease;
}

.view-all::after {
  content: '→';
}

.view-all:hover {
  gap: 0.55rem;
  text-decoration: none;
}


/* ---------------------------------------------------------------
   14. Contact Form (index.html)
--------------------------------------------------------------- */
.contact-form {
  display: flex;
  flex-direction: column;
  gap: 1.1rem;
  max-width: 560px;
  margin-top: 0.5rem;
}

.form-row {
  display: flex;
  flex-direction: column;
  gap: 0.4rem;
}

.form-row label {
  font-family: var(--font-mono);
  font-size: 0.78rem;
  color: var(--text-secondary);
  letter-spacing: 0.04em;
  text-transform: uppercase;
}

.form-row input,
.form-row textarea {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 0.7rem 0.9rem;
  color: var(--text-primary);
  font-family: var(--font-sans);
  font-size: 0.95rem;
  line-height: 1.5;
  transition: border-color 0.2s ease, background 0.2s ease;
  width: 100%;
}

.form-row textarea {
  resize: vertical;
  min-height: 130px;
}

.form-row input:focus,
.form-row textarea:focus {
  outline: none;
  border-color: var(--accent);
  background: var(--bg-card-hover);
}

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

.contact-form button {
  align-self: flex-start;
  margin-top: 0.25rem;
}


/* ---------------------------------------------------------------
   15. Scroll Animations
   Elements with .fade-in-down start hidden + shifted up.
   The IntersectionObserver in script.js adds .in-view
   when the element scrolls into the viewport, triggering
   the slide-down + fade-in transition.
--------------------------------------------------------------- */
.fade-in-down {
  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);
  will-change: opacity, transform;
}

.fade-in-down.in-view {
  opacity: 1;
  transform: translateY(0);
}

/* Stagger siblings within card grids and post lists */
.card-grid > .fade-in-down:nth-child(2) { transition-delay: 0.08s; }
.card-grid > .fade-in-down:nth-child(3) { transition-delay: 0.16s; }
.card-grid > .fade-in-down:nth-child(4) { transition-delay: 0.24s; }

.post-list > .fade-in-down:nth-child(2) { transition-delay: 0.08s; }
.post-list > .fade-in-down:nth-child(3) { transition-delay: 0.16s; }

/* Stagger the hero text lines so they cascade in nicely */
.hero-name.fade-in-down  { transition-delay: 0.05s; }
.hero-title.fade-in-down { transition-delay: 0.15s; }
.hero-bio.fade-in-down   { transition-delay: 0.25s; }
.btn-group.fade-in-down  { transition-delay: 0.35s; }
.hero-visual.fade-in-down { transition-delay: 0.2s; }

/* Respect users who've requested reduced motion */
@media (prefers-reduced-motion: reduce) {
  .fade-in-down,
  .fade-in-down.in-view {
    opacity: 1;
    transform: none;
    transition: none;
  }
}


/* ---------------------------------------------------------------
   16. Empty State (blog.html "coming soon" placeholder)
--------------------------------------------------------------- */
.empty-state {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  padding: 2rem 0 3rem;
  max-width: 560px;
}

.empty-state-icon {
  width: 56px;
  height: 56px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.6rem;
  color: var(--accent);
  background: var(--accent-glow);
  border: 1px solid var(--border-accent);
  border-radius: 50%;
  margin-bottom: 1.25rem;
}

.empty-state-title {
  font-size: clamp(1.4rem, 3vw, 1.75rem);
  margin-bottom: 0.5rem;
}

.empty-state-body {
  font-size: 1rem;
  line-height: 1.75;
  margin-bottom: 1.75rem;
}


/* ---------------------------------------------------------------
   17. Responsive — Mobile
--------------------------------------------------------------- */
@media (max-width: 600px) {
  .nav-links a {
    padding: 0.35rem 0.55rem;
    font-size: 0.82rem;
  }

  .hero {
    padding: 3rem 0 2.5rem;
  }

  .card-grid {
    grid-template-columns: 1fr;
  }

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

  .article-header {
    padding: 2.5rem 0 2rem;
  }

  .section {
    padding: 2.75rem 0;
  }
}

@media (max-width: 400px) {
  .btn-group {
    flex-direction: column;
  }

  .btn {
    text-align: center;
  }
}