/* ---------- Tokens ---------- */
:root{
  --bg: #FAFAF9;
  --surface: #FFFFFF;
  --ink: #14171A;
  --ink-soft: #52585E;
  --ink-faint: #90959B;
  --line: #E4E6E8;
  --accent: #3352E1;
  --accent-ink: #1F35A8;
  --accent-soft: #EEF1FD;
  --signal: #1FAE7A;
  --signal-soft: #E7F7F0;

  --display: 'Space Grotesk', sans-serif;
  --body: 'IBM Plex Sans', sans-serif;
  --mono: 'IBM Plex Mono', monospace;

  --max: 1120px;
  --radius: 14px;
  --radius-sm: 8px;
}

*{ box-sizing: border-box; }
html{ scroll-behavior: smooth; }
body{
  margin: 0;
  background: var(--bg);
  color: var(--ink);
  font-family: var(--body);
  font-size: 16px;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}
img,svg{ display:block; max-width:100%; }
a{ color: inherit; text-decoration: none; }
h1,h2,h3{ font-family: var(--display); margin: 0; letter-spacing: -0.01em; }
p{ margin: 0; }
button{ font-family: inherit; }

.section-inner{
  max-width: var(--max);
  margin: 0 auto;
  padding: 0 32px;
}

@media (prefers-reduced-motion: reduce){
  html{ scroll-behavior: auto; }
  *{ animation-duration: 0.01ms !important; transition-duration: 0.01ms !important; }
}

:focus-visible{
  outline: 2px solid var(--accent);
  outline-offset: 3px;
  border-radius: 4px;
}

/* ---------- Nav ---------- */
.nav{
  position: sticky;
  top: 0;
  z-index: 50;
  background: rgba(250,250,249,0.85);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--line);
}
.nav-inner{
  max-width: var(--max);
  margin: 0 auto;
  padding: 18px 32px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}
.nav-brand{
  font-family: var(--display);
  font-weight: 600;
  font-size: 1.15rem;
}
.nav-dot{ color: var(--accent); }
.nav-links{
  display: flex;
  align-items: center;
  gap: 32px;
  font-size: 0.92rem;
  color: var(--ink-soft);
}
.nav-links a{ transition: color 0.15s ease; }
.nav-links a:hover{ color: var(--ink); }
.nav-cta{
  color: var(--ink) !important;
  background: var(--surface);
  border: 1px solid var(--line);
  padding: 8px 16px;
  border-radius: 999px;
}
.nav-cta:hover{ border-color: var(--accent); }
.nav-toggle{
  display: none;
  flex-direction: column;
  gap: 4px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 6px;
}
.nav-toggle span{
  width: 20px; height: 2px; background: var(--ink);
}

/* ---------- Hero ---------- */
.hero{
  max-width: var(--max);
  margin: 0 auto;
  padding: 88px 32px 96px;
}
.hero-grid{
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: 64px;
  align-items: center;
}
.eyebrow{
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-family: var(--mono);
  font-size: 0.8rem;
  color: var(--signal);
  background: var(--signal-soft);
  padding: 6px 12px;
  border-radius: 999px;
  margin-bottom: 24px;
}
.eyebrow-dot{
  width: 6px; height: 6px; border-radius: 50%;
  background: var(--signal);
  box-shadow: 0 0 0 3px var(--signal-soft);
  animation: pulse 2s ease-in-out infinite;
}
@keyframes pulse{
  0%,100%{ opacity: 1; } 50%{ opacity: 0.4; }
}
.hero h1{
  font-size: clamp(2.4rem, 4.6vw, 3.6rem);
  font-weight: 600;
  line-height: 1.08;
  margin-bottom: 22px;
}
.hero-sub{
  font-size: 1.08rem;
  color: var(--ink-soft);
  max-width: 46ch;
  margin-bottom: 36px;
}
.hero-actions{
  display: flex;
  gap: 14px;
  margin-bottom: 52px;
  flex-wrap: wrap;
}
.btn{
  font-family: var(--body);
  font-weight: 600;
  font-size: 0.95rem;
  padding: 13px 26px;
  border-radius: 999px;
  border: 1px solid transparent;
  cursor: pointer;
  transition: transform 0.15s ease, box-shadow 0.15s ease, background 0.15s ease;
  display: inline-block;
}
.btn-primary{
  background: var(--accent);
  color: #fff;
}
.btn-primary:hover{
  background: var(--accent-ink);
  transform: translateY(-1px);
  box-shadow: 0 8px 20px rgba(51,82,225,0.25);
}
.btn-ghost{
  background: transparent;
  border-color: var(--line);
  color: var(--ink);
}
.btn-ghost:hover{ border-color: var(--ink); }

.hero-facts{
  display: flex;
  gap: 36px;
  flex-wrap: wrap;
  border-top: 1px solid var(--line);
  padding-top: 24px;
}
.fact{ display: flex; flex-direction: column; gap: 4px; }
.fact-num{
  font-family: var(--mono);
  font-size: 1.1rem;
  font-weight: 500;
}
.fact-label{
  font-size: 0.82rem;
  color: var(--ink-faint);
}

/* ---------- Hero panel (signature element) ---------- */
.hero-panel{ display: flex; justify-content: center; }
.panel-window{
  width: 100%;
  max-width: 340px;
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  box-shadow: 0 24px 60px -20px rgba(20,23,26,0.18);
  overflow: hidden;
  transform: rotate(1.2deg);
  transition: transform 0.4s ease;
}
.panel-window:hover{ transform: rotate(0deg); }
.panel-bar{
  display: flex;
  align-items: center;
  gap: 6px;
  padding: 12px 14px;
  border-bottom: 1px solid var(--line);
  background: #FCFCFB;
}
.panel-dot{
  width: 8px; height: 8px; border-radius: 50%;
  background: var(--line);
}
.panel-title{
  margin-left: auto;
  font-family: var(--mono);
  font-size: 0.72rem;
  color: var(--ink-faint);
}
.panel-body{ padding: 18px 16px; }
.panel-row{
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 9px 0;
  border-bottom: 1px dashed var(--line);
  font-family: var(--mono);
  font-size: 0.82rem;
}
.panel-key{ color: var(--ink-faint); }
.panel-val{ font-weight: 500; }
.panel-val.ok{ color: var(--signal); }
.panel-graph{ padding: 16px 0 6px; }
.panel-graph svg{ width: 100%; height: 50px; }
.panel-graph polyline{
  fill: none;
  stroke: var(--accent);
  stroke-width: 2;
  stroke-linecap: round;
  stroke-linejoin: round;
}
.panel-row-tags{
  border-bottom: none;
  padding-top: 14px;
  gap: 8px;
  flex-wrap: wrap;
  justify-content: flex-start;
}
.tag{
  background: var(--accent-soft);
  color: var(--accent-ink);
  font-family: var(--mono);
  font-size: 0.7rem;
  padding: 4px 9px;
  border-radius: 999px;
}

/* ---------- Section shared ---------- */
section:not(.hero){ padding: 88px 0; }
.section-eyebrow{
  font-family: var(--mono);
  font-size: 0.8rem;
  color: var(--accent);
  margin-bottom: 14px;
}
section h2{
  font-size: clamp(1.7rem, 3vw, 2.3rem);
  font-weight: 600;
  margin-bottom: 40px;
  max-width: 26ch;
}

/* ---------- About ---------- */
.about{ background: var(--surface); border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); }
.about-grid{
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 56px;
  align-items: start;
}
.about-grid h2{ margin-bottom: 0; }
.about-text p{ color: var(--ink-soft); margin-bottom: 18px; }
.about-text p:last-child{ margin-bottom: 0; }

/* ---------- Skills ---------- */
.skills-grid{
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
}
.skill-card{
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 26px 22px;
  transition: transform 0.2s ease, box-shadow 0.2s ease, border-color 0.2s ease;
}
.skill-card:hover{
  transform: translateY(-3px);
  box-shadow: 0 16px 30px -18px rgba(20,23,26,0.2);
  border-color: var(--accent);
}
.skill-tag{
  display: inline-block;
  font-family: var(--mono);
  font-size: 0.7rem;
  color: var(--accent);
  background: var(--accent-soft);
  padding: 3px 9px;
  border-radius: 999px;
  margin-bottom: 14px;
}
.skill-card h3{ font-size: 1.05rem; margin-bottom: 8px; }
.skill-card p{ color: var(--ink-soft); font-size: 0.92rem; }

/* ---------- Services ---------- */
.services{ background: var(--surface); border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); }
.services-list{ display: flex; flex-direction: column; }
.service-row{
  display: grid;
  grid-template-columns: 1fr 2fr;
  gap: 24px;
  padding: 26px 0;
  border-top: 1px solid var(--line);
  transition: padding-left 0.2s ease;
}
.service-row:last-child{ border-bottom: 1px solid var(--line); }
.service-row:hover{ padding-left: 10px; }
.service-row h3{ font-size: 1.05rem; }
.service-row p{ color: var(--ink-soft); }

/* ---------- Work ---------- */
.work-list{
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 22px;
}
.work-card{
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 28px;
  transition: transform 0.2s ease, box-shadow 0.2s ease;
}
.work-card:hover{
  transform: translateY(-3px);
  box-shadow: 0 20px 36px -22px rgba(20,23,26,0.22);
}
.work-card-placeholder{ border-style: dashed; background: transparent; }
.work-card-head{
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 12px;
}
.work-card h3{ font-size: 1.15rem; }
.work-status{
  font-family: var(--mono);
  font-size: 0.7rem;
  color: var(--signal);
  background: var(--signal-soft);
  padding: 4px 10px;
  border-radius: 999px;
}
.work-status.pending{
  color: var(--ink-faint);
  background: var(--bg);
  border: 1px dashed var(--line);
}
.work-card p{ color: var(--ink-soft); margin-bottom: 20px; font-size: 0.95rem; }
.work-meta{ display: flex; gap: 8px; flex-wrap: wrap; }
.work-meta span{
  font-family: var(--mono);
  font-size: 0.72rem;
  color: var(--ink-soft);
  border: 1px solid var(--line);
  padding: 4px 10px;
  border-radius: 999px;
}

/* ---------- Contact ---------- */
.contact{ background: var(--surface); border-top: 1px solid var(--line); }
.contact-sub{
  color: var(--ink-soft);
  display: block;
  margin-top: -20px;
  margin-bottom: 36px;
}
.contact-form{ max-width: 520px; }
.form-row{ margin-bottom: 20px; display: flex; flex-direction: column; gap: 8px; }
.form-row label{
  font-family: var(--mono);
  font-size: 0.78rem;
  color: var(--ink-soft);
}
.form-row input, .form-row textarea{
  font-family: var(--body);
  font-size: 0.98rem;
  padding: 12px 14px;
  border: 1px solid var(--line);
  border-radius: var(--radius-sm);
  background: var(--bg);
  color: var(--ink);
  resize: vertical;
  transition: border-color 0.15s ease;
}
.form-row input:focus, .form-row textarea:focus{
  border-color: var(--accent);
  outline: none;
}
.form-note{
  margin-top: 14px;
  font-size: 0.88rem;
  color: var(--signal);
  min-height: 1.2em;
}

/* ---------- Footer ---------- */
.footer{ padding: 32px 0 44px; }
.footer-inner{
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 12px;
  font-size: 0.85rem;
  color: var(--ink-faint);
}
.footer-links{ display: flex; gap: 20px; }
.footer-links a:hover{ color: var(--ink); }

/* ---------- Scroll reveal ---------- */
.reveal{
  opacity: 0;
  transform: translateY(18px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}
.reveal.is-visible{ opacity: 1; transform: translateY(0); }

/* ---------- Responsive ---------- */
@media (max-width: 900px){
  .hero-grid{ grid-template-columns: 1fr; gap: 48px; }
  .hero-panel{ order: -1; }
  .about-grid{ grid-template-columns: 1fr; gap: 24px; }
  .skills-grid{ grid-template-columns: repeat(2, 1fr); }
  .work-list{ grid-template-columns: 1fr; }
  .service-row{ grid-template-columns: 1fr; gap: 8px; }
}

@media (max-width: 680px){
  .nav-links{
    position: absolute;
    top: 100%; left: 0; right: 0;
    background: var(--surface);
    border-bottom: 1px solid var(--line);
    flex-direction: column;
    align-items: flex-start;
    gap: 18px;
    padding: 22px 32px 28px;
    display: none;
  }
  .nav-links.open{ display: flex; }
  .nav-toggle{ display: flex; }
  .skills-grid{ grid-template-columns: 1fr; }
  .hero{ padding-top: 56px; }
}