:root {
  --bg: #0a0e1a;
  --bg-alt: #0d1224;
  --surface: #121729;
  --surface-2: #171d33;
  --border: #232a45;
  --text: #e7ebf5;
  --text-muted: #9aa5c0;
  --accent-ice: #38bdf8;
  --accent-indigo: #6366f1;
  --accent-fusion: #f97316;
  --radius: 14px;
  --max-width: 1160px;
  --shadow: 0 20px 40px -20px rgba(0, 0, 0, 0.5);
  --transition: 0.25s ease;
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

h1, h2, h3 { line-height: 1.2; margin: 0 0 0.6em; font-weight: 700; }
p { margin: 0 0 1em; color: var(--text-muted); }
a { color: inherit; text-decoration: none; }
ul { list-style: none; margin: 0; padding: 0; }
img { max-width: 100%; display: block; }

.container {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 24px;
}

.skip-link {
  position: absolute;
  left: -999px;
  top: 0;
  background: var(--accent-ice);
  color: #041018;
  padding: 10px 16px;
  z-index: 1000;
}
.skip-link:focus { left: 16px; top: 16px; }

.gradient-text {
  background: linear-gradient(120deg, var(--accent-ice), var(--accent-indigo));
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

/* Buttons */
.btn {
  display: inline-block;
  padding: 14px 28px;
  border-radius: 999px;
  font-weight: 600;
  font-size: 0.95rem;
  transition: transform var(--transition), box-shadow var(--transition), background var(--transition);
  border: 1px solid transparent;
  cursor: pointer;
}
.btn-primary {
  background: linear-gradient(120deg, var(--accent-ice), var(--accent-indigo));
  color: #04101c;
  box-shadow: 0 12px 24px -10px rgba(56, 189, 248, 0.5);
}
.btn-primary:hover { transform: translateY(-2px); box-shadow: 0 16px 30px -10px rgba(56, 189, 248, 0.65); }
.btn-outline {
  border-color: var(--border);
  color: var(--text);
  background: transparent;
}
.btn-outline:hover { border-color: var(--accent-ice); color: var(--accent-ice); }
.btn-block { width: 100%; text-align: center; }

/* Header */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(10, 14, 26, 0.85);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--border);
}
.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 72px;
}
.logo {
  font-weight: 800;
  font-size: 1.3rem;
  letter-spacing: 0.5px;
}
.logo span { color: var(--accent-fusion); }

.nav-list {
  display: flex;
  gap: 28px;
  align-items: center;
}
.nav-list a {
  color: var(--text-muted);
  font-size: 0.95rem;
  transition: color var(--transition);
}
.nav-list a:hover { color: var(--accent-ice); }
.nav-cta {
  background: var(--surface-2);
  border: 1px solid var(--border);
  padding: 8px 18px;
  border-radius: 999px;
  color: var(--text) !important;
}
.nav-cta:hover { border-color: var(--accent-ice); }

.nav-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 8px;
}
.nav-toggle span {
  width: 24px;
  height: 2px;
  background: var(--text);
  display: block;
}

/* Hero */
.hero {
  position: relative;
  padding: 140px 0 100px;
  overflow: hidden;
}
.hero-bg {
  position: absolute;
  inset: 0;
  background:
    radial-gradient(600px circle at 20% 20%, rgba(56, 189, 248, 0.18), transparent 60%),
    radial-gradient(500px circle at 80% 30%, rgba(249, 115, 22, 0.12), transparent 60%);
  z-index: 0;
}
.hero-inner { position: relative; z-index: 1; max-width: 780px; }
.eyebrow {
  display: inline-block;
  color: var(--accent-ice);
  font-size: 0.85rem;
  font-weight: 600;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  background: rgba(56, 189, 248, 0.08);
  border: 1px solid rgba(56, 189, 248, 0.3);
  padding: 6px 14px;
  border-radius: 999px;
  margin-bottom: 20px;
}
.hero h1 { font-size: clamp(2.2rem, 4.5vw, 3.4rem); }
.hero-sub { font-size: 1.1rem; max-width: 620px; }
.hero-actions { display: flex; gap: 16px; margin: 32px 0 48px; flex-wrap: wrap; }

.hero-stats {
  display: flex;
  gap: 40px;
  flex-wrap: wrap;
}
.hero-stats li { display: flex; flex-direction: column; }
.hero-stats strong { font-size: 1.8rem; color: var(--text); }
.hero-stats span { color: var(--text-muted); font-size: 0.9rem; }

/* Sections */
.section { padding: 96px 0; }
.section-alt { background: var(--bg-alt); }
.section-tag {
  color: var(--accent-ice);
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  font-size: 0.85rem;
  margin-bottom: 10px;
}
.section-lead { max-width: 620px; margin: 0 auto 48px; }
.centered { text-align: center; margin-left: auto; margin-right: auto; }
h2.centered { max-width: 700px; }

.grid { display: grid; gap: 28px; }

/* About */
.about-grid {
  display: grid;
  grid-template-columns: 320px 1fr;
  gap: 56px;
  align-items: center;
}
.photo-frame {
  aspect-ratio: 1 / 1;
  border-radius: var(--radius);
  background: var(--surface);
  border: 1px solid var(--border);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--text-muted);
  font-size: 0.95rem;
  overflow: hidden;
}
.photo-frame img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}
.about-facts {
  display: grid;
  gap: 16px;
  margin: 28px 0 32px;
}
.about-facts div {
  display: flex;
  justify-content: space-between;
  border-bottom: 1px solid var(--border);
  padding-bottom: 12px;
  gap: 20px;
}
.about-facts strong { color: var(--text); white-space: nowrap; }
.about-facts span { color: var(--text-muted); text-align: right; }

/* Cards / Services */
.services-grid { grid-template-columns: repeat(3, 1fr); }
.card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 32px;
  transition: transform var(--transition), border-color var(--transition);
}
.card:hover { transform: translateY(-4px); border-color: var(--accent-ice); }
.card-icon {
  width: 48px;
  height: 48px;
  border-radius: 12px;
  background: linear-gradient(120deg, rgba(56,189,248,0.15), rgba(99,102,241,0.15));
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
  color: var(--accent-ice);
  margin-bottom: 20px;
}
.card h3 { font-size: 1.1rem; }
.card p { margin: 0; font-size: 0.95rem; }

/* Skills */
.skills-grid {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  justify-content: center;
}
.skill-badge {
  background: var(--surface);
  border: 1px solid var(--border);
  padding: 10px 18px;
  border-radius: 999px;
  font-size: 0.9rem;
  color: var(--text);
  transition: border-color var(--transition), color var(--transition);
}
.skill-badge:hover { border-color: var(--accent-fusion); color: var(--accent-fusion); }

/* Portfolio */
.portfolio-grid { grid-template-columns: repeat(2, 1fr); }
.project-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
  transition: transform var(--transition), border-color var(--transition);
}
.project-card:hover { transform: translateY(-4px); border-color: var(--accent-ice); }
.project-thumb {
  height: 180px;
  background: linear-gradient(135deg, rgba(56,189,248,0.16), rgba(99,102,241,0.16)), var(--bg-alt);
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 20px;
  text-align: center;
}
.project-thumb span {
  font-size: clamp(1.1rem, 2.4vw, 1.5rem);
  font-weight: 800;
  background: linear-gradient(120deg, var(--accent-ice), var(--accent-indigo));
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}
.project-body { padding: 24px; }
.project-body h3 { font-size: 1.1rem; }
.tags { display: flex; gap: 8px; flex-wrap: wrap; margin-top: 16px; }
.tags li {
  font-size: 0.78rem;
  padding: 4px 10px;
  border-radius: 999px;
  background: rgba(56,189,248,0.1);
  color: var(--accent-ice);
}

/* Timeline */
.timeline {
  max-width: 760px;
  margin: 0 auto;
  border-left: 2px solid var(--border);
  padding-left: 32px;
  display: grid;
  gap: 40px;
}
.timeline-item { position: relative; }
.timeline-item::before {
  content: "";
  position: absolute;
  left: -38px;
  top: 4px;
  width: 12px;
  height: 12px;
  border-radius: 50%;
  background: var(--accent-ice);
  box-shadow: 0 0 0 4px rgba(56,189,248,0.15);
}
.timeline-date {
  color: var(--accent-fusion);
  font-weight: 700;
  font-size: 0.85rem;
  margin-bottom: 6px;
}
.timeline-content h3 { font-size: 1.1rem; margin-bottom: 4px; }
.timeline-content p { margin: 0 0 4px; }

/* Testimonials */
.testimonials-grid { grid-template-columns: repeat(3, 1fr); }
.testimonial {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 28px;
  margin: 0;
}
.testimonial p { font-style: italic; color: var(--text); }
.testimonial cite { color: var(--text-muted); font-size: 0.9rem; font-style: normal; }

/* FAQ */
.faq-list {
  max-width: 780px;
  margin: 0 auto;
  display: grid;
  gap: 16px;
}
.faq-item {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 20px 24px;
}
.faq-item summary {
  cursor: pointer;
  font-weight: 600;
  color: var(--text);
  list-style: none;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 16px;
}
.faq-item summary::-webkit-details-marker { display: none; }
.faq-item summary::after {
  content: "+";
  color: var(--accent-ice);
  font-size: 1.3rem;
  flex-shrink: 0;
  transition: transform var(--transition);
}
.faq-item[open] summary::after { transform: rotate(45deg); }
.faq-item p {
  margin: 14px 0 0;
  font-size: 0.95rem;
}
.faq-item a { color: var(--accent-ice); }
.faq-item a:hover { text-decoration: underline; }

/* Blog listing */
.blog-hero {
  padding: 140px 0 60px;
  text-align: center;
}
.blog-hero .eyebrow { margin-left: auto; margin-right: auto; }
.blog-grid { grid-template-columns: repeat(2, 1fr); max-width: 900px; margin: 0 auto; }
.blog-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 32px;
  transition: transform var(--transition), border-color var(--transition);
  display: flex;
  flex-direction: column;
}
.blog-card:hover { transform: translateY(-4px); border-color: var(--accent-ice); }
.blog-meta {
  display: flex;
  gap: 12px;
  font-size: 0.8rem;
  color: var(--accent-ice);
  text-transform: uppercase;
  letter-spacing: 0.04em;
  font-weight: 700;
  margin-bottom: 14px;
}
.blog-card h2, .blog-card h3 { font-size: 1.25rem; }
.blog-card .read-more { margin-top: auto; padding-top: 16px; color: var(--accent-ice); font-weight: 600; font-size: 0.9rem; }

/* Blog post / article */
.article-header {
  padding: 140px 0 40px;
  max-width: 780px;
  margin: 0 auto;
  text-align: center;
}
.article-meta {
  display: flex;
  justify-content: center;
  gap: 16px;
  color: var(--text-muted);
  font-size: 0.9rem;
  margin-top: 20px;
}
.prose {
  max-width: 780px;
  margin: 0 auto;
}
.prose h2 {
  font-size: 1.5rem;
  margin-top: 2.2em;
  color: var(--text);
}
.prose h3 {
  font-size: 1.15rem;
  margin-top: 1.6em;
  color: var(--accent-ice);
}
.prose p { font-size: 1.02rem; }
.prose ul {
  list-style: disc;
  padding-left: 1.4em;
  margin: 0 0 1.2em;
  display: grid;
  gap: 6px;
}
.prose ul li { color: var(--text-muted); }
.prose a { color: var(--accent-ice); }
.prose a:hover { text-decoration: underline; }
.prose strong { color: var(--text); }
.prose blockquote {
  border-left: 3px solid var(--accent-ice);
  margin: 2em 0;
  padding: 4px 24px;
  color: var(--text-muted);
  font-style: italic;
}
.cta-box {
  max-width: 780px;
  margin: 3em auto 0;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 36px;
  text-align: center;
}
.cta-box h3 { margin-bottom: 10px; }
.back-link {
  display: block;
  max-width: 780px;
  margin: 0 auto 20px;
  color: var(--accent-ice);
  font-size: 0.9rem;
}

@media (max-width: 720px) {
  .blog-grid { grid-template-columns: 1fr; }
}

/* Contact */
.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 56px;
  align-items: start;
}
.contact-list { display: grid; gap: 16px; margin-top: 24px; }
.contact-list li {
  display: flex;
  justify-content: space-between;
  border-bottom: 1px solid var(--border);
  padding-bottom: 12px;
}
.contact-list strong { color: var(--text-muted); font-weight: 600; }
.contact-list a { color: var(--accent-ice); }
.contact-list a:hover { text-decoration: underline; }

.contact-form {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 32px;
  display: grid;
  gap: 6px;
}
.contact-form label { font-size: 0.85rem; color: var(--text-muted); margin-top: 12px; }
.contact-form input,
.contact-form textarea {
  background: var(--bg-alt);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 12px 14px;
  color: var(--text);
  font-family: inherit;
  font-size: 0.95rem;
  resize: vertical;
}
.contact-form input:focus,
.contact-form textarea:focus {
  outline: none;
  border-color: var(--accent-ice);
}
.contact-form button { margin-top: 20px; }
.form-note { font-size: 0.85rem; margin: 10px 0 0; min-height: 1.2em; color: var(--accent-ice); }
.hp-field {
  position: absolute;
  left: -9999px;
  width: 1px;
  height: 1px;
  opacity: 0;
}

/* Footer */
.site-footer {
  border-top: 1px solid var(--border);
  padding: 32px 0;
  background: var(--bg-alt);
}
.footer-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 16px;
}
.footer-inner p { margin: 0; font-size: 0.9rem; }
.footer-links { display: flex; gap: 20px; }
.footer-links a { color: var(--text-muted); font-size: 0.9rem; }
.footer-links a:hover { color: var(--accent-ice); }

/* Responsive */
@media (max-width: 900px) {
  .about-grid { grid-template-columns: 1fr; }
  .photo-frame { max-width: 260px; margin: 0 auto; }
  .services-grid, .portfolio-grid, .testimonials-grid { grid-template-columns: repeat(2, 1fr); }
  .contact-grid { grid-template-columns: 1fr; }
}

@media (max-width: 720px) {
  .nav {
    position: absolute;
    top: 72px;
    left: 0;
    right: 0;
    background: var(--bg);
    border-bottom: 1px solid var(--border);
    max-height: 0;
    overflow: hidden;
    transition: max-height var(--transition);
  }
  .nav.open { max-height: 400px; }
  .nav-list { flex-direction: column; align-items: flex-start; padding: 16px 24px 24px; gap: 18px; }
  .nav-toggle { display: flex; }
  .services-grid, .portfolio-grid, .testimonials-grid { grid-template-columns: 1fr; }
  .hero { padding: 110px 0 70px; }
  .hero-stats { gap: 28px; }
}