/* =====================================================
   THE WANDERING ROBOTICIST — Stylesheet
   Warm / Editorial · Playfair Display + Inter
   ===================================================== */

/* ── Custom Properties ── */
:root {
  --bg:           #faf8f5;
  --surface:      #f2ece4;
  --surface-warm: #f7f0e6;
  --surface-dark: #231f1a;
  --text:         #231f1a;
  --text-muted:   #6b6057;
  --accent:       #c1623f;
  --accent-light: #f5e6d8;
  --border:       #ddd6cc;
  --white:        #ffffff;

  --font-serif: 'Playfair Display', Georgia, serif;
  --font-sans:  'Inter', system-ui, sans-serif;

  --max-width:    1180px;
  --section-pad:  6rem 2rem;

  --ease:         0.3s ease;
  --shadow:       0 4px 24px rgba(35, 31, 26, 0.08);
  --shadow-hover: 0 10px 40px rgba(35, 31, 26, 0.14);
}

/* ── Reset ── */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html  { scroll-behavior: smooth; }
body  {
  font-family: var(--font-sans);
  background:  var(--bg);
  color:       var(--text);
  line-height: 1.7;
  font-size:   16px;
  overflow-x:  hidden;
}
img   { max-width: 100%; display: block; }
a     { color: inherit; text-decoration: none; }
ul    { list-style: none; }

/* ── Typography ── */
h1, h2, h3 { font-family: var(--font-serif); line-height: 1.15; font-weight: 600; }
h1 { font-size: clamp(2.4rem, 5.5vw, 4.5rem); }
h2 { font-size: clamp(1.9rem, 3.5vw, 2.8rem); }
h3 { font-size: clamp(1.05rem, 1.8vw, 1.3rem); }

/* ── Layout ── */
.container {
  max-width: var(--max-width);
  margin:    0 auto;
  padding:   0 2rem;
}
.section { padding: var(--section-pad); }

.section-dark {
  background: var(--surface-dark);
  color:      var(--white);
}
.section-dark p          { color: rgba(255,255,255,0.65); }
.section-dark .section-label { color: var(--accent); }
.section-dark .section-desc  { color: rgba(255,255,255,0.55); }

.section-warm { background: var(--surface-warm); }

.section-header { margin-bottom: 3.5rem; }

.section-label {
  display:       inline-block;
  font-family:   var(--font-sans);
  font-size:     0.72rem;
  font-weight:   600;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color:         var(--accent);
  margin-bottom: 0.6rem;
}

.section-desc {
  color:      var(--text-muted);
  font-size:  1rem;
  max-width:  520px;
  margin-top: 0.6rem;
}

/* ── Buttons ── */
.btn {
  display:       inline-block;
  padding:       0.75rem 1.75rem;
  border-radius: 2px;
  font-family:   var(--font-sans);
  font-size:     0.875rem;
  font-weight:   500;
  letter-spacing: 0.03em;
  transition:    all var(--ease);
  cursor:        pointer;
  border:        none;
}
.btn-primary  { background: var(--accent); color: white; }
.btn-primary:hover { background: #a84f2f; transform: translateY(-2px); box-shadow: 0 6px 20px rgba(193,98,63,0.35); }
.btn-secondary {
  background:   transparent;
  color:        var(--text);
  border:       1.5px solid var(--border);
}
.btn-secondary:hover { border-color: var(--accent); color: var(--accent); }
.btn-outline   {
  background:   transparent;
  color:        var(--accent);
  border:       1.5px solid var(--accent);
}
.btn-outline:hover { background: var(--accent); color: white; }

/* =====================================================
   NAVIGATION
   ===================================================== */
#navbar {
  position:   fixed;
  top: 0; left: 0; right: 0;
  z-index:    100;
  display:    flex;
  align-items: center;
  justify-content: space-between;
  padding:    1.4rem 2.5rem;
  transition: all var(--ease);
}
#navbar.scrolled {
  background:      rgba(250, 248, 245, 0.96);
  backdrop-filter: blur(10px);
  box-shadow:      0 1px 0 var(--border);
  padding:         0.9rem 2.5rem;
}
.nav-logo {
  font-family: var(--font-serif);
  font-size:   1.05rem;
  font-weight: 600;
  color:       var(--text);
  white-space: nowrap;
}
.nav-links {
  display:     flex;
  align-items: center;
  gap:         2.5rem;
}
.nav-links a {
  font-size:      0.82rem;
  font-weight:    500;
  letter-spacing: 0.03em;
  color:          var(--text-muted);
  transition:     color var(--ease);
  position:       relative;
}
.nav-links a::after {
  content:    '';
  position:   absolute;
  bottom:     -3px; left: 0;
  width:      0;
  height:     1px;
  background: var(--accent);
  transition: width var(--ease);
}
.nav-links a:hover,
.nav-links a.active { color: var(--accent); }
.nav-links a:hover::after,
.nav-links a.active::after { width: 100%; }

.nav-toggle {
  display:    none;
  flex-direction: column;
  gap:        5px;
  background: none;
  border:     none;
  cursor:     pointer;
  padding:    4px;
  z-index:    101;
}
.nav-toggle span {
  display:    block;
  width:      22px;
  height:     2px;
  background: var(--text);
  transition: all var(--ease);
  transform-origin: center;
}
.nav-toggle.open span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.nav-toggle.open span:nth-child(2) { opacity: 0; transform: scaleX(0); }
.nav-toggle.open span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

/* =====================================================
   HERO
   ===================================================== */
#hero {
  min-height:  100vh;
  display:     flex;
  flex-direction: column;
  justify-content: center;
  padding:     8rem 2rem 5rem;
  position:    relative;
  overflow:    hidden;
  background:  linear-gradient(105deg, var(--bg) 55%, var(--surface) 55%);
}

/* decorative large italic initial in background */
#hero::after {
  content:    '"';
  position:   absolute;
  top:        -0.05em;
  right:      3%;
  font-family: var(--font-serif);
  font-size:  clamp(14rem, 22vw, 26rem);
  font-style: italic;
  color:      var(--border);
  line-height: 1;
  pointer-events: none;
  user-select: none;
  opacity:    0.55;
}

.hero-content {
  max-width:  var(--max-width);
  margin:     0 auto;
  width:      100%;
  position:   relative;
  z-index:    1;
}

.hero-label {
  display:       inline-block;
  font-size:     0.72rem;
  font-weight:   600;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color:         var(--accent);
  margin-bottom: 1.5rem;
}

.hero-title {
  font-size:     clamp(2.6rem, 6vw, 5rem);
  font-weight:   700;
  line-height:   1.08;
  max-width:     780px;
  margin-bottom: 1.5rem;
}
.hero-title em {
  font-style: italic;
  color:      var(--accent);
}

.hero-sub {
  font-size:     1.05rem;
  color:         var(--text-muted);
  max-width:     480px;
  margin-bottom: 2.5rem;
  line-height:   1.75;
}

.hero-cta { display: flex; gap: 1rem; flex-wrap: wrap; }

.hero-scroll-hint {
  position:  absolute;
  bottom:    2.5rem;
  left:      50%;
  transform: translateX(-50%);
  display:   flex;
  flex-direction: column;
  align-items: center;
  gap:       0.5rem;
  font-size: 0.66rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color:     var(--text-muted);
  opacity:   0;
  animation: fadeScrollHint 0.6s ease 2s forwards;
}
.scroll-line {
  width:      1px;
  height:     44px;
  background: linear-gradient(to bottom, var(--text-muted), transparent);
  animation:  scrollPulse 2.2s ease infinite;
}

/* =====================================================
   ABOUT
   ===================================================== */
.about-grid {
  display:     grid;
  grid-template-columns: 1fr 1.6fr;
  gap:         5rem;
  align-items: center;
}
.about-image {
  aspect-ratio: 3/4;
  background:   var(--surface);
  border-radius: 3px;
  overflow:     hidden;
  position:     relative;
}
/* accent stripe on image */
.about-image::before {
  content:   '';
  position:  absolute;
  top: 0; left: 0;
  width:     4px;
  height:    100%;
  background: var(--accent);
  z-index:   1;
}
.image-placeholder {
  width:        100%;
  height:       100%;
  display:      flex;
  align-items:  center;
  justify-content: center;
  font-family:  var(--font-serif);
  font-size:    3.5rem;
  font-style:   italic;
  color:        var(--border);
  background:   var(--surface);
  /* replace src with an <img> when you have a photo */
}
.about-text h2   { margin: 0.6rem 0 1.25rem; }
.about-text p    { color: var(--text-muted); margin-bottom: 1rem; }
.about-text .btn { margin-top: 0.5rem; }

/* =====================================================
   PROJECTS
   ===================================================== */
.projects-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.5rem;
}
.project-card {
  background:    rgba(255,255,255,0.05);
  border:        1px solid rgba(255,255,255,0.1);
  border-radius: 3px;
  padding:       2rem;
  transition:    all var(--ease);
}
.project-card:hover {
  transform:     translateY(-5px);
  background:    rgba(255,255,255,0.09);
  border-color:  rgba(255,255,255,0.2);
  box-shadow:    0 12px 40px rgba(0,0,0,0.25);
}
.card-tag {
  font-size:      0.68rem;
  font-weight:    600;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color:          var(--accent);
  margin-bottom:  0.7rem;
}
.project-card h3 { color: white; margin-bottom: 0.7rem; }
.project-card p  { font-size: 0.88rem; line-height: 1.7; margin-bottom: 1.5rem; }
.card-footer     { display: flex; gap: 0.5rem; flex-wrap: wrap; }
.tech-tag {
  font-size:      0.7rem;
  padding:        0.22rem 0.6rem;
  background:     rgba(193, 98, 63, 0.18);
  color:          #f5a882;
  border-radius:  2px;
  font-weight:    500;
  letter-spacing: 0.04em;
}

/* =====================================================
   BLOG
   ===================================================== */
.blog-grid {
  display:     grid;
  grid-template-columns: 1.35fr 1fr 1fr;
  gap:         1.5rem;
  align-items: start;
}
.blog-card {
  padding:       2rem;
  background:    var(--white);
  border-radius: 3px;
  border:        1px solid var(--border);
  transition:    all var(--ease);
}
.blog-card:hover {
  transform:  translateY(-4px);
  box-shadow: var(--shadow-hover);
}

/* Featured (dark) card */
.blog-card--featured {
  background:   var(--surface-dark);
  border-color: transparent;
  color:        white;
}
.blog-card--featured h3        { color: white; }
.blog-card--featured p         { color: rgba(255,255,255,0.6); }
.blog-card--featured .blog-date { color: rgba(255,255,255,0.4); }
.blog-card--featured .blog-category {
  background: rgba(193,98,63,0.22);
  color:      #f5a882;
}
.blog-card--featured .read-more { color: var(--accent); }

.blog-meta {
  display:     flex;
  align-items: center;
  gap:         0.7rem;
  margin-bottom: 1rem;
}
.blog-category {
  font-size:      0.68rem;
  font-weight:    600;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  background:     var(--accent-light);
  color:          var(--accent);
  padding:        0.18rem 0.55rem;
  border-radius:  2px;
}
.blog-date { font-size: 0.78rem; color: var(--text-muted); }

.blog-card h3 { margin-bottom: 0.7rem; line-height: 1.3; }
.blog-card p  { font-size: 0.88rem; color: var(--text-muted); margin-bottom: 1.25rem; line-height: 1.7; }

.read-more {
  font-size:   0.85rem;
  font-weight: 500;
  color:       var(--accent);
  display:     inline-flex;
  align-items: center;
  gap:         0.3rem;
  transition:  gap var(--ease);
}
.read-more:hover { gap: 0.6rem; }

/* =====================================================
   SERVICES
   ===================================================== */
.services-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1.5rem;
}
.service-item {
  padding:    2rem 1.5rem;
  background: white;
  border:     1px solid var(--border);
  border-radius: 3px;
  transition: all var(--ease);
}
.service-item:hover {
  transform:  translateY(-4px);
  box-shadow: var(--shadow);
  border-color: var(--accent-light);
}
.service-icon { font-size: 1.6rem; margin-bottom: 1rem; }
.service-item h3 { font-size: 0.98rem; margin-bottom: 0.6rem; }
.service-item p  { font-size: 0.85rem; color: var(--text-muted); line-height: 1.65; }

/* =====================================================
   TIMELINE
   ===================================================== */
.timeline {
  position:  relative;
  max-width: 640px;
  padding-left: 1px;
}
.timeline::before {
  content:    '';
  position:   absolute;
  left:       0;
  top:        8px;
  bottom:     8px;
  width:      1px;
  background: var(--border);
}
.timeline-item {
  display:  flex;
  gap:      2.5rem;
  padding:  0 0 2.75rem 0;
  position: relative;
}
.timeline-dot {
  width:        11px;
  height:       11px;
  background:   var(--accent);
  border-radius: 50%;
  flex-shrink:  0;
  margin-top:   4px;
  margin-left:  -5px;
  position:     relative;
  z-index:      1;
  transition:   transform var(--ease), box-shadow var(--ease);
}
.timeline-item:hover .timeline-dot {
  transform:  scale(1.4);
  box-shadow: 0 0 0 4px var(--accent-light);
}
.timeline-content {
  display:       flex;
  flex-direction: column;
  gap:           0.3rem;
}
.timeline-place {
  font-family: var(--font-serif);
  font-size:   1.25rem;
  font-weight: 600;
}
.timeline-role {
  font-size: 0.875rem;
  color:     var(--text-muted);
}
.timeline-year {
  font-size:      0.72rem;
  font-weight:    600;
  letter-spacing: 0.1em;
  color:          var(--accent);
  text-transform: uppercase;
}

/* =====================================================
   CONTACT
   ===================================================== */
.contact-grid {
  display:     grid;
  grid-template-columns: 1fr 1.2fr;
  gap:         5rem;
  align-items: start;
}
.contact-text h2   { color: white; margin: 0.6rem 0 1rem; }
.contact-text p    { color: rgba(255,255,255,0.6); max-width: 360px; margin-bottom: 1.75rem; }
.contact-email {
  font-family: var(--font-serif);
  font-size:   1.1rem;
  font-style:  italic;
  color:       var(--accent);
  border-bottom: 1px solid rgba(193,98,63,0.4);
  padding-bottom: 3px;
  transition:  opacity var(--ease);
}
.contact-email:hover { opacity: 0.75; }

.contact-form { display: flex; flex-direction: column; gap: 1rem; }
.form-group input,
.form-group textarea {
  width:       100%;
  padding:     0.875rem 1rem;
  background:  rgba(255,255,255,0.07);
  border:      1px solid rgba(255,255,255,0.14);
  border-radius: 2px;
  color:       white;
  font-family: var(--font-sans);
  font-size:   0.9rem;
  transition:  border-color var(--ease), background var(--ease);
  resize:      vertical;
}
.form-group input::placeholder,
.form-group textarea::placeholder { color: rgba(255,255,255,0.3); }
.form-group input:focus,
.form-group textarea:focus {
  outline:     none;
  border-color: var(--accent);
  background:  rgba(255,255,255,0.1);
}
.form-success {
  display:   none;
  color:     #7dcd6e;
  font-size: 0.85rem;
}

/* =====================================================
   FOOTER
   ===================================================== */
footer { background: #160f0a; padding: 2.5rem 2rem; }
.footer-inner {
  display:         flex;
  align-items:     center;
  justify-content: space-between;
  flex-wrap:       wrap;
  gap:             1rem;
}
.footer-logo { font-family: var(--font-serif); font-size: 1rem; color: rgba(255,255,255,0.75); }
footer p     { color: rgba(255,255,255,0.3); font-size: 0.78rem; }
.footer-links { display: flex; gap: 1.5rem; }
.footer-links a {
  font-size: 0.78rem;
  color:     rgba(255,255,255,0.4);
  transition: color var(--ease);
}
.footer-links a:hover { color: var(--accent); }

/* =====================================================
   ANIMATIONS
   ===================================================== */
.fade-in {
  opacity:    0;
  transform:  translateY(28px);
  transition: opacity 0.7s ease, transform 0.7s ease;
}
.fade-in.visible {
  opacity:   1;
  transform: translateY(0);
}

@keyframes fadeScrollHint {
  to { opacity: 1; }
}
@keyframes scrollPulse {
  0%, 100% { opacity: 1; }
  50%       { opacity: 0.25; }
}

/* =====================================================
   RESPONSIVE
   ===================================================== */
@media (max-width: 1024px) {
  .projects-grid   { grid-template-columns: 1fr 1fr; }
  .blog-grid        { grid-template-columns: 1fr 1fr; }
  .blog-card--featured { grid-column: 1 / -1; }
  .services-grid    { grid-template-columns: 1fr 1fr; }
}

@media (max-width: 768px) {
  :root { --section-pad: 4rem 1.5rem; }

  #navbar { padding: 1rem 1.5rem; }
  #navbar.scrolled { padding: 0.8rem 1.5rem; }

  .nav-links {
    position:   fixed;
    top: 0; right: -100%;
    width:      78vw;
    max-width:  320px;
    height:     100vh;
    background: var(--bg);
    flex-direction: column;
    justify-content: center;
    padding:    2rem;
    gap:        2rem;
    box-shadow: -10px 0 40px rgba(0,0,0,0.12);
    transition: right var(--ease);
    z-index:    99;
  }
  .nav-links.open  { right: 0; }
  .nav-links a     { font-size: 1.1rem; }
  .nav-toggle      { display: flex; }

  #hero {
    background: var(--bg);
    padding:    7rem 1.5rem 5rem;
  }
  #hero::after { display: none; }

  .about-grid {
    grid-template-columns: 1fr;
    gap: 2.5rem;
  }
  .about-image { max-width: 260px; aspect-ratio: 1/1; }

  .projects-grid  { grid-template-columns: 1fr; }
  .blog-grid      { grid-template-columns: 1fr; }
  .blog-card--featured { grid-column: auto; }
  .services-grid  { grid-template-columns: 1fr 1fr; }

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

  .footer-inner { flex-direction: column; text-align: center; }
}

@media (max-width: 480px) {
  .services-grid { grid-template-columns: 1fr; }
  .hero-cta      { flex-direction: column; }
  .hero-cta .btn { text-align: center; }
}