ferrosite 0.1.0

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

html {
  scroll-behavior: smooth;
  -webkit-text-size-adjust: 100%;
}

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

img, video { max-width: 100%; display: block; }
a { color: var(--color-primary); text-decoration: none; }
a:hover { text-decoration: underline; }

/* ── Layout utilities ───────────────────────────────────────────────── */
.container {
  width: 100%;
  max-width: var(--container-max);
  margin-inline: auto;
  padding-inline: clamp(1rem, 4vw, 2rem);
}

.sr-only {
  position: absolute; width: 1px; height: 1px;
  padding: 0; margin: -1px; overflow: hidden;
  clip: rect(0,0,0,0); white-space: nowrap; border: 0;
}

/* ── Header ─────────────────────────────────────────────────────────── */
.site-header {
  position: sticky; top: 0; z-index: 50;
  height: var(--header-height);
  background: rgba(15, 23, 42, 0.85);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--color-border);
}

.header-inner {
  height: 100%;
  display: flex;
  align-items: center;
  gap: 1.5rem;
}

.header-brand {
  display: flex; align-items: center; gap: 0.5rem;
  font-weight: 700; font-size: 1.1rem;
  color: var(--color-text);
  text-decoration: none;
  flex-shrink: 0;
}
.header-brand:hover { text-decoration: none; }

.brand-icon { font-size: 1.4rem; }
.brand-text { background: linear-gradient(135deg, var(--color-primary), var(--color-accent));
  -webkit-background-clip: text; -webkit-text-fill-color: transparent; }

.site-nav { margin-left: auto; }

.nav-menu {
  display: flex; list-style: none; gap: 0.15rem;
  align-items: center;
}

.nav-link {
  display: flex; align-items: center; gap: 0.35rem;
  padding: 0.45rem 0.85rem; border-radius: 8px;
  font-size: 0.9rem; font-weight: 500;
  color: var(--color-text-muted);
  transition: color 0.15s, background 0.15s;
  text-decoration: none;
}
.nav-link:hover { color: var(--color-text); background: rgba(255,255,255,0.06); text-decoration: none; }
.nav-link.active { color: var(--color-primary); background: rgba(14,165,233,0.1); }
.nav-icon { font-size: 0.9rem; }

.nav-toggle {
  display: none;
  background: none; border: 1px solid var(--color-border);
  color: var(--color-text-muted); padding: 0.4rem; border-radius: 6px;
  cursor: pointer;
}
.hamburger {
  display: block; width: 18px; height: 2px; background: currentColor;
  position: relative;
}
.hamburger::before, .hamburger::after {
  content: ''; position: absolute; left: 0; width: 100%; height: 2px;
  background: currentColor; transition: transform 0.2s;
}
.hamburger::before { top: -5px; }
.hamburger::after { top: 5px; }

.header-action { flex-shrink: 0; }

/* ── Buttons ────────────────────────────────────────────────────────── */
.btn {
  display: inline-flex; align-items: center; gap: 0.5rem;
  font-family: var(--font-sans); font-weight: 600;
  border-radius: 8px; cursor: pointer; text-decoration: none;
  border: 1px solid transparent; transition: all 0.15s;
  white-space: nowrap;
}
.btn:hover { text-decoration: none; }

.btn-sm  { font-size: 0.8rem;  padding: 0.35rem 0.85rem; }
.btn-md  { font-size: 0.9rem;  padding: 0.55rem 1.15rem; }
.btn-lg  { font-size: 1rem;    padding: 0.75rem 1.5rem; }

.btn-primary {
  background: var(--color-primary); color: #fff; border-color: var(--color-primary);
}
.btn-primary:hover { background: var(--color-primary-dark); border-color: var(--color-primary-dark); }

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

/* ── Main layout ────────────────────────────────────────────────────── */
.site-main { flex: 1; padding-block: 2.5rem; }

.template-notice {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  align-items: center;
  margin-bottom: 1.5rem;
  padding: 0.9rem 1.1rem;
  border: 1px solid rgba(251, 191, 36, 0.35);
  border-radius: 12px;
  background: linear-gradient(135deg, rgba(251, 191, 36, 0.16), rgba(249, 115, 22, 0.12));
  color: var(--color-text);
}

.template-notice strong {
  color: #fbbf24;
  font-weight: 700;
}

.main-grid { display: grid; gap: 2.5rem; }
.main-grid.has-sidebar.sidebar-right  { grid-template-columns: 1fr var(--sidebar-width); }
.main-grid.has-sidebar.sidebar-left   { grid-template-columns: var(--sidebar-width) 1fr; }

.site-sidebar { position: sticky; top: calc(var(--header-height) + 1.5rem); align-self: start; }

/* ── Sections ───────────────────────────────────────────────────────── */
.section-header {
  display: flex; align-items: baseline; justify-content: space-between;
  margin-bottom: 1.75rem;
}
.section-title {
  font-size: var(--font-size-2xl); font-weight: 700;
  background: linear-gradient(135deg, var(--color-text) 0%, var(--color-text-muted) 100%);
  -webkit-background-clip: text; -webkit-text-fill-color: transparent;
}
.section-link { font-size: 0.9rem; font-weight: 500; color: var(--color-primary); }
.section-link:hover { text-decoration: underline; }

.page-header { margin-bottom: 2.5rem; }
.page-title { font-size: var(--font-size-3xl); font-weight: 800; margin-bottom: 0.5rem; }
.page-subtitle { font-size: var(--font-size-lg); color: var(--color-text-muted); }

/* ── Hero Section ───────────────────────────────────────────────────── */
.hero-section {
  min-height: calc(90vh - var(--header-height));
  display: flex; flex-direction: column; justify-content: center;
  padding-block: 4rem;
  background: var(--hero-bg, none);
  position: relative; overflow: hidden;
  margin-inline: calc(clamp(1rem,4vw,2rem) * -1);
  padding-inline: clamp(1rem,4vw,2rem);
}

.hero-content {
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 3rem; align-items: center;
  max-width: var(--container-max); margin-inline: auto; width: 100%;
}

.hero-text { display: flex; flex-direction: column; gap: 1.25rem; }

.hero-headline {
  font-size: clamp(2rem, 5vw, 3.5rem);
  font-weight: 800; line-height: 1.15;
  letter-spacing: -0.02em;
}

.hero-sub {
  font-size: clamp(1rem, 2vw, 1.2rem);
  color: var(--color-primary);
  font-weight: 500; font-family: var(--font-mono);
  letter-spacing: -0.01em;
}

.hero-body { color: var(--color-text-muted); max-width: 520px; }

.hero-actions { display: flex; flex-wrap: wrap; gap: 1rem; align-items: center; }

.hero-avatar { position: relative; flex-shrink: 0; }
.avatar-ring {
  width: clamp(160px, 20vw, 220px);
  height: clamp(160px, 20vw, 220px);
  border-radius: 50%; padding: 3px;
  background: linear-gradient(135deg, var(--color-primary), var(--color-accent));
}
.avatar-img { width: 100%; height: 100%; border-radius: 50%; object-fit: cover; }
.avatar-glow {
  position: absolute; inset: -20px;
  background: radial-gradient(circle, rgba(14,165,233,0.25) 0%, transparent 70%);
  border-radius: 50%; z-index: -1; pointer-events: none;
}

.hero-scroll-hint {
  position: absolute; bottom: 2rem; left: 50%; transform: translateX(-50%);
  animation: bounce 2s infinite;
}
.scroll-chevron { font-size: 1.5rem; color: var(--color-text-muted); }
@keyframes bounce {
  0%, 100% { transform: translateX(-50%) translateY(0); }
  50%       { transform: translateX(-50%) translateY(-8px); }
}

/* ── Stats Bar ──────────────────────────────────────────────────────── */
.stats-bar {
  padding-block: 2.5rem;
  border-block: 1px solid var(--color-border);
  margin-block: 2rem;
}
.stats-grid {
  display: flex; flex-wrap: wrap; gap: 2rem; justify-content: center;
}
.stat-item { text-align: center; }
.stat-value {
  display: block; font-size: var(--font-size-3xl); font-weight: 800;
  background: linear-gradient(135deg, var(--color-primary), var(--color-accent));
  -webkit-background-clip: text; -webkit-text-fill-color: transparent;
}
.stat-label { font-size: 0.85rem; color: var(--color-text-muted); font-weight: 500; }

/* ── Feature Cards ──────────────────────────────────────────────────── */
.features-section { margin-block: 3rem; }
.features-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 1.5rem;
}
.feature-card {
  background: var(--color-surface); border: 1px solid var(--color-border);
  border-radius: 12px; padding: 1.75rem;
  display: flex; flex-direction: column; gap: 0.75rem;
  transition: border-color 0.2s, transform 0.2s;
}
.feature-card:hover { border-color: var(--color-primary); transform: translateY(-2px); }
.feature-icon { font-size: 2rem; }
.feature-title { font-size: 1.05rem; font-weight: 600; }
.feature-body { font-size: 0.9rem; color: var(--color-text-muted); line-height: 1.6; }

/* ── Skills ─────────────────────────────────────────────────────────── */
.skills-section { margin-block: 3rem; }
.skill-groups { display: flex; flex-wrap: wrap; gap: 2rem; }
.skill-group { min-width: 200px; }
.skill-group-title {
  font-size: 0.8rem; font-weight: 600; text-transform: uppercase;
  letter-spacing: 0.08em; color: var(--color-primary); margin-bottom: 0.75rem;
}
.skill-tags { display: flex; flex-wrap: wrap; gap: 0.4rem; }
.skill-tag {
  font-size: 0.82rem; font-weight: 500;
  background: rgba(14,165,233,0.08); color: var(--color-text);
  border: 1px solid rgba(14,165,233,0.15);
  padding: 0.25rem 0.65rem; border-radius: 6px;
  font-family: var(--font-mono);
  transition: background 0.15s, border-color 0.15s;
}
.skill-tag:hover { background: rgba(14,165,233,0.15); border-color: rgba(14,165,233,0.3); }
.skill-level { font-size: 0.7rem; font-weight: 600; text-transform: uppercase;
  padding: 0.15rem 0.5rem; border-radius: 4px; margin-bottom: 0.5rem; display: inline-block; }
.skill-level-expert     { background: rgba(34,197,94,0.15);  color: var(--color-success); }
.skill-level-proficient { background: rgba(14,165,233,0.15); color: var(--color-primary); }
.skill-level-familiar   { background: rgba(148,163,184,0.15);color: var(--color-text-muted); }

/* ── Projects ───────────────────────────────────────────────────────── */
.projects-section { margin-block: 3rem; }
.projects-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
  gap: 1.5rem;
}

/* ── Blog ───────────────────────────────────────────────────────────── */
.blog-section { margin-block: 3rem; }
.blog-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(290px, 1fr));
  gap: 1.5rem;
}

/* ── Testimonials ───────────────────────────────────────────────────── */
.testimonials-section { margin-block: 3rem; }
.testimonials-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 1.5rem;
}
.testimonial-card {
  background: var(--color-surface); border: 1px solid var(--color-border);
  border-radius: 12px; padding: 1.5rem;
  position: relative;
}
.testimonial-card::before {
  content: '"'; position: absolute; top: -0.5rem; left: 1rem;
  font-size: 4rem; color: var(--color-primary); opacity: 0.3;
  line-height: 1; font-family: Georgia, serif;
}
.testimonial-body { font-style: italic; color: var(--color-text-muted); line-height: 1.7; margin-bottom: 1rem; }
.testimonial-footer cite { font-style: normal; }
.testimonial-role, .testimonial-company { font-size: 0.85rem; color: var(--color-text-muted); }

/* ── Tags ───────────────────────────────────────────────────────────── */
.tag {
  font-size: 0.75rem; font-weight: 500; padding: 0.2rem 0.6rem; border-radius: 4px;
  background: rgba(139,92,246,0.12); color: var(--color-accent);
  border: 1px solid rgba(139,92,246,0.2); text-decoration: none;
  transition: background 0.15s;
}
.tag:hover { background: rgba(139,92,246,0.2); text-decoration: none; }

/* ── Post Article ───────────────────────────────────────────────────── */
.post-article { max-width: 720px; margin-inline: auto; }

.post-header { margin-bottom: 2rem; }
.post-categories { display: flex; gap: 0.5rem; margin-bottom: 0.75rem; }
.post-category {
  font-size: 0.75rem; font-weight: 600; text-transform: uppercase; letter-spacing: 0.06em;
  color: var(--color-primary); text-decoration: none;
}
.post-title { font-size: clamp(1.75rem, 4vw, 2.5rem); font-weight: 800; line-height: 1.2; margin-bottom: 0.75rem; }
.post-lead { font-size: 1.15rem; color: var(--color-text-muted); line-height: 1.6; margin-bottom: 1rem; }
.post-meta { display: flex; flex-wrap: wrap; gap: 0.5rem; align-items: center;
  font-size: 0.85rem; color: var(--color-text-muted); margin-bottom: 0.75rem; }
.post-meta-sep { opacity: 0.4; }
.post-tags { display: flex; flex-wrap: wrap; gap: 0.4rem; }
.post-cover { margin-block: 2rem; border-radius: 12px; overflow: hidden; }
.post-cover-img { width: 100%; }

/* ── Prose ──────────────────────────────────────────────────────────── */
.prose { max-width: 72ch; }
.prose h1,.prose h2,.prose h3,.prose h4 {
  font-weight: 700; line-height: 1.25; margin-top: 2em; margin-bottom: 0.75em;
  scroll-margin-top: calc(var(--header-height) + 1rem);
}
.prose h2 { font-size: var(--font-size-2xl); }
.prose h3 { font-size: var(--font-size-xl); }
.prose p  { margin-bottom: 1.2em; color: var(--color-text-muted); }
.prose strong { color: var(--color-text); font-weight: 600; }
.prose a  { color: var(--color-primary); text-decoration: underline; text-decoration-thickness: 1px; }
.prose code {
  font-family: var(--font-mono); font-size: 0.875em;
  background: var(--color-code-bg); border: 1px solid var(--color-border);
  padding: 0.1em 0.4em; border-radius: 4px; color: var(--color-text);
}
.prose pre {
  background: var(--color-code-bg); border: 1px solid var(--color-border);
  border-radius: 10px; padding: 1.25rem; overflow-x: auto; margin-block: 1.5em;
}
.prose pre code { background: none; border: none; padding: 0; font-size: 0.875rem; }
.prose blockquote {
  border-left: 3px solid var(--color-primary); padding-left: 1.25rem;
  margin-left: 0; color: var(--color-text-muted); font-style: italic;
}
.prose ul,.prose ol { padding-left: 1.5rem; margin-bottom: 1.2em; }
.prose li { margin-bottom: 0.4em; color: var(--color-text-muted); }
.prose table { width: 100%; border-collapse: collapse; margin-block: 1.5em; font-size: 0.9rem; }
.prose th { background: var(--color-surface); font-weight: 600; text-align: left; }
.prose th,.prose td { padding: 0.6rem 1rem; border: 1px solid var(--color-border); }
.prose hr { border: none; border-top: 1px solid var(--color-border); margin-block: 2em; }
.prose img { border-radius: 8px; }

/* ── Post footer ────────────────────────────────────────────────────── */
.post-footer { margin-top: 3rem; padding-top: 2rem; border-top: 1px solid var(--color-border);
  display: flex; flex-wrap: wrap; justify-content: space-between; gap: 1rem; align-items: center; }
.post-updated { font-size: 0.85rem; color: var(--color-text-muted); }
.post-share { display: flex; align-items: center; gap: 0.75rem; }
.share-label { font-size: 0.85rem; color: var(--color-text-muted); }
.post-newsletter { margin-top: 3rem; padding: 2rem; background: var(--color-surface);
  border: 1px solid var(--color-border); border-radius: 12px; }

/* ── Timeline ───────────────────────────────────────────────────────── */
.timeline { display: flex; flex-direction: column; gap: 1.25rem; border-left: 2px solid var(--color-border); padding-left: 1.5rem; margin-left: 0.5rem; }

/* ── About ──────────────────────────────────────────────────────────── */
.about-page { display: flex; flex-direction: column; gap: 3rem; }
.about-hero { display: grid; grid-template-columns: 1fr auto; gap: 2rem; align-items: center; }
.about-tagline { font-size: 1.1rem; color: var(--color-primary); font-weight: 500; font-family: var(--font-mono); }
.about-body { max-width: 72ch; }
.avatar-lg { width: 160px; height: 160px; border-radius: 50%; object-fit: cover; border: 3px solid var(--color-border); }

/* ── Contact ────────────────────────────────────────────────────────── */
.contact-page { max-width: 800px; }
.contact-grid { display: grid; grid-template-columns: 1fr 1.5fr; gap: 3rem; margin-top: 2rem; }
.contact-bio { color: var(--color-text-muted); margin-bottom: 1.5rem; }
.contact-channels { list-style: none; display: flex; flex-direction: column; gap: 0.75rem; }
.contact-channel { display: flex; align-items: center; gap: 0.75rem; color: var(--color-text-muted);
  text-decoration: none; transition: color 0.15s; }
.contact-channel:hover { color: var(--color-primary); text-decoration: none; }
.channel-icon { font-size: 1.1rem; width: 1.5rem; text-align: center; }
.contact-form { display: flex; flex-direction: column; gap: 1.25rem; }
.contact-form-status {
  margin-bottom: 1rem;
  padding: 0.95rem 1rem;
  border-radius: 12px;
  font-weight: 600;
}
.contact-form-redirect-message {
  display: none;
}
.contact-form-redirect-message:target {
  display: block;
}
.contact-form-status-success {
  color: #79e2b6;
  border: 1px solid rgba(121, 226, 182, 0.26);
  background: rgba(20, 138, 98, 0.12);
}
.contact-form-status-error {
  color: #ff9f95;
  border: 1px solid rgba(255, 159, 149, 0.24);
  background: rgba(196, 76, 70, 0.12);
}
.form-group { display: flex; flex-direction: column; gap: 0.4rem; }
.form-group label { font-size: 0.875rem; font-weight: 500; color: var(--color-text-muted); }
.form-group input, .form-group textarea {
  background: var(--color-surface); border: 1px solid var(--color-border);
  border-radius: 8px; padding: 0.65rem 1rem; color: var(--color-text);
  font-family: var(--font-sans); font-size: 0.9rem; outline: none;
  transition: border-color 0.2s;
}
.form-group input:focus, .form-group textarea:focus { border-color: var(--color-primary); }

/* ── Footer ─────────────────────────────────────────────────────────── */
.site-footer { background: var(--color-surface); border-top: 1px solid var(--color-border); padding-block: 3rem 1.5rem; margin-top: auto; }
.footer-top { display: grid; grid-template-columns: 1fr 2fr; gap: 3rem; margin-bottom: 2rem; }
.footer-brand { font-size: 1.1rem; font-weight: 700; margin-bottom: 0.5rem; }
.footer-bio { font-size: 0.875rem; color: var(--color-text-muted); margin-bottom: 1rem; }
.social-links { display: flex; gap: 0.75rem; }
.social-link { display: inline-flex; align-items: center; justify-content: center;
  width: 36px; height: 36px; border-radius: 8px; background: rgba(255,255,255,0.06);
  border: 1px solid var(--color-border); color: var(--color-text-muted);
  transition: color 0.15s, border-color 0.15s, background 0.15s; }
.social-link:hover { color: var(--color-primary); border-color: var(--color-primary); background: rgba(14,165,233,0.1); }
.footer-nav-columns { display: flex; gap: 2rem; flex-wrap: wrap; }
.footer-col-title { font-size: 0.8rem; font-weight: 600; text-transform: uppercase; letter-spacing: 0.06em;
  color: var(--color-text-muted); margin-bottom: 0.75rem; }
.footer-nav-col ul { list-style: none; display: flex; flex-direction: column; gap: 0.4rem; }
.footer-nav-col a { font-size: 0.875rem; color: var(--color-text-muted); transition: color 0.15s; }
.footer-nav-col a:hover { color: var(--color-text); text-decoration: none; }
.footer-bottom { padding-top: 1.5rem; border-top: 1px solid var(--color-border);
  font-size: 0.825rem; color: var(--color-text-muted); text-align: center; }
.footer-bottom a { color: var(--color-text-muted); }
.footer-bottom a:hover { color: var(--color-primary); }

/* ── Empty state ────────────────────────────────────────────────────── */
.empty-state { padding: 4rem; text-align: center; color: var(--color-text-muted); }

/* ── Sidebar widget ─────────────────────────────────────────────────── */
.sidebar-widget { background: var(--color-surface); border: 1px solid var(--color-border);
  border-radius: 10px; padding: 1.25rem; margin-bottom: 1.25rem; }

/* ── Dock ───────────────────────────────────────────────────────────── */
.site-dock {
  position: fixed; bottom: 1.5rem; left: 50%; transform: translateX(-50%);
  z-index: 40; width: max-content; max-width: calc(100vw - 2rem);
}

/* ── Responsive ─────────────────────────────────────────────────────── */
@media (max-width: 900px) {
  .hero-content { grid-template-columns: 1fr; text-align: center; }
  .hero-avatar { justify-self: center; }
  .hero-actions { justify-content: center; }
  .about-hero { grid-template-columns: 1fr; }
  .avatar-lg { margin-inline: auto; }
  .footer-top { grid-template-columns: 1fr; }
  .main-grid.has-sidebar { grid-template-columns: 1fr; }
  .contact-grid { grid-template-columns: 1fr; }
}

@media (max-width: 768px) {
  .nav-toggle { display: flex; }
  .nav-menu { display: none; position: absolute; top: var(--header-height); left: 0; right: 0;
    flex-direction: column; background: var(--color-surface);
    border-bottom: 1px solid var(--color-border); padding: 0.75rem;
    gap: 0.25rem; }
  .nav-menu.open { display: flex; }
  .features-grid, .projects-grid, .blog-grid { grid-template-columns: 1fr; }
}