/* ==========================================================
   TOKENS
========================================================== */
:root{
  --dark-bg:       #0f1210;
  --dark-surface:  #171b18;
  --dark-border:   #2a302c;
  --dark-text:     #f2f1ec;
  --dark-text-dim: #9aa39d;

  --bg:            #f5f4f0;
  --surface:       #ffffff;
  --surface-2:     #eeece5;
  --border:        #e0ddd3;
  --border-soft:   #e8e5db;
  --text:          #14181a;
  --text-dim:      #5c655f;
  --text-faint:    #8b938c;

  --teal:          #0d9488;
  --teal-deep:     #0a746b;
  --teal-tint:     #e3f5f2;
  --teal-glow:     #2dd4c4;

  --font-display: 'Space Grotesk', sans-serif;
  --font-body:    'Inter', sans-serif;
  --font-mono:    'JetBrains Mono', monospace;

  --max-w: 1120px;
  --pad: clamp(1.25rem, 4vw, 3rem);
  --rail-w: 3px;
}

*,*::before,*::after{ box-sizing:border-box; }
html{ scroll-behavior:smooth; }

@media (prefers-reduced-motion: reduce){
  html{ scroll-behavior:auto; }
  *,*::before,*::after{ animation-duration:0.01ms !important; animation-iteration-count:1 !important; transition-duration:0.01ms !important; }
}

body{
  margin:0;
  color:var(--text);
  font-family:var(--font-body);
  line-height:1.6;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
  background:var(--bg); /* fallback if canvas fails/JS disabled */
}

a{ color:inherit; text-decoration:none; }
ul{ list-style:none; margin:0; padding:0; }
img{ max-width:100%; display:block; }

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

/* ==========================================================
   AMBIENT TEXTURE
========================================================== */
.grain{
  position:fixed; inset:0; pointer-events:none; z-index:1;
  opacity:0.025; mix-blend-mode:overlay;
  background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='120' height='120'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='2' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)'/%3E%3C/svg%3E");
}

.dot-grid{
  position:fixed; inset:0; width:100%; height:100%;
  pointer-events:none; z-index:0;
}

/* ==========================================================
   AUDIT RAIL — signature scroll element
========================================================== */
.audit-rail{
  position:fixed; top:0; left:0; width:var(--rail-w); height:100vh;
  background:rgba(255,255,255,0.08); z-index:150;
}
.audit-rail-fill{
  width:100%; height:0%;
  background:linear-gradient(180deg, var(--teal-glow), var(--teal));
  box-shadow:0 0 12px 1px rgba(45,212,196,0.5);
  transition:height 0.1s linear;
}

/* ==========================================================
   HERO (dark, giant text-only name)
========================================================== */
main{ position:relative; z-index:2; }

.hero{
  background:var(--dark-bg);
  color:var(--dark-text);
  min-height:100vh;
  display:flex;
  flex-direction:column;
  padding:0 var(--pad) clamp(2rem,5vw,3.5rem);
  position:relative;
}

.hero-nav{
  max-width:var(--max-w); width:100%; margin:0 auto;
  display:flex; align-items:center; justify-content:space-between;
  padding:1.5rem 0;
}
.nav-logo{
  font-family:var(--font-mono); font-weight:600; font-size:1.05rem;
  letter-spacing:0.02em; color:var(--dark-text);
}
.nav-logo .cursor{ color:var(--teal-glow); animation:blink 1.1s step-end infinite; }
@keyframes blink{ 50%{ opacity:0; } }

.nav-links{ display:flex; align-items:center; gap:2rem; }
.nav-links a{
  font-family:var(--font-mono); font-size:0.82rem; letter-spacing:0.02em;
  color:var(--dark-text-dim); transition:color 0.2s ease;
}
.nav-links a:hover{ color:var(--teal-glow); }
.nav-cta{
  padding:0.45rem 0.9rem; border:1px solid var(--teal); border-radius:4px;
  color:var(--teal-glow) !important;
}
.nav-cta:hover{ background:rgba(13,148,136,0.12); }

.nav-toggle{
  display:none; flex-direction:column; gap:5px; background:none; border:none; cursor:pointer; padding:8px;
  z-index:20;
}
.nav-toggle span{ width:22px; height:2px; background:var(--dark-text); transition:all 0.25s ease; }

.hero-eyebrow{
  max-width:var(--max-w); width:100%; margin:auto auto 0;
  font-family:var(--font-mono); font-size:0.72rem; letter-spacing:0.08em;
  color:var(--dark-text-dim); display:flex; align-items:center; gap:0.5rem;
  text-transform:uppercase; padding-top:2rem;
}
.dot{
  width:7px; height:7px; border-radius:50%; background:var(--teal-glow);
  box-shadow:0 0 8px 1px rgba(45,212,196,0.6); animation:pulse 2s ease-in-out infinite;
  flex-shrink:0;
}
@keyframes pulse{ 0%,100%{ opacity:1; } 50%{ opacity:0.4; } }

.hero-name{
  max-width:var(--max-w); width:100%; margin:0.5rem auto 0;
  font-family:var(--font-display); font-weight:700;
  font-size:clamp(4.5rem, 14vw, 10.5rem);
  line-height:0.88; letter-spacing:-0.03em;
  color:var(--dark-text);
}

.hero-foot{
  max-width:var(--max-w); width:100%; margin:2.5rem auto 0;
  display:flex; align-items:flex-end; justify-content:space-between;
  gap:1.5rem; flex-wrap:wrap;
}
.hero-role{
  font-family:var(--font-mono); font-size:clamp(0.95rem,2vw,1.15rem);
  color:var(--teal-glow); margin:0; letter-spacing:0.01em; line-height:1.4;
}

.hero-scroll-cue{
  display:flex; align-items:center; gap:0.5rem;
  font-family:var(--font-mono); font-size:0.78rem; letter-spacing:0.05em;
  color:var(--dark-text-dim); text-transform:uppercase;
  transition:color 0.2s ease;
}
.hero-scroll-cue:hover{ color:var(--teal-glow); }
.hero-scroll-cue svg{ animation:bob 1.6s ease-in-out infinite; }
@keyframes bob{ 0%,100%{ transform:translateY(0); } 50%{ transform:translateY(4px); } }

/* ==========================================================
   ABOUT (light, two-column statement)
========================================================== */
.about{
  padding:clamp(5rem,12vw,9rem) var(--pad);
}
.about-grid{
  max-width:var(--max-w); margin:0 auto;
  display:grid; grid-template-columns:1.1fr 0.9fr;
  gap:clamp(3rem,6vw,6rem);
  align-items:start;
}
.about-statement{
  font-family:var(--font-display); font-weight:500;
  font-size:clamp(1.6rem, 3.2vw, 2.35rem);
  line-height:1.35; letter-spacing:-0.01em;
  color:var(--text);
  margin:0;
}
.about-detail{
  display:flex; flex-direction:column; gap:2rem;
  padding-top:0.5rem;
}
.about-detail > p{
  font-size:1rem; color:var(--text-dim); line-height:1.75; margin:0;
  max-width:44ch;
}
.about-actions{ display:flex; gap:0.85rem; flex-wrap:wrap; }
.about-links{ display:flex; gap:1.5rem; flex-wrap:wrap; }
.about-links a{
  font-family:var(--font-mono); font-size:0.82rem; color:var(--text-dim);
  transition:color 0.2s ease;
}
.about-links a:hover{ color:var(--teal-deep); }

.btn{
  font-family:var(--font-mono); font-size:0.85rem; font-weight:500;
  padding:0.8rem 1.5rem; border-radius:5px; transition:all 0.2s ease;
  display:inline-flex; align-items:center; gap:0.4rem; letter-spacing:0.01em;
}
.btn-primary{ background:var(--teal); color:#ffffff; }
.btn-primary:hover{ background:var(--teal-deep); transform:translateY(-1px); box-shadow:0 8px 20px -8px rgba(13,148,136,0.5); }
.btn-ghost{ border:1px solid var(--border); color:var(--text); background:var(--surface); }
.btn-ghost:hover{ border-color:var(--teal); color:var(--teal-deep); }

/* ==========================================================
   SECTIONS (shared, light)
========================================================== */
.section{
  max-width:var(--max-w); margin:0 auto; padding:clamp(3rem,7vw,5rem) var(--pad);
  border-top:1px solid var(--border-soft);
  position:relative;
}
.section-label{
  font-family:var(--font-mono); font-size:0.75rem; letter-spacing:0.08em;
  color:var(--teal); margin:0 0 0.6rem;
  display:flex; align-items:center; gap:0.4rem;
}
.section-title{
  font-family:var(--font-display); font-weight:600;
  font-size:clamp(1.75rem, 3.5vw, 2.25rem); margin:0 0 2.5rem; letter-spacing:-0.01em;
  color:var(--text);
}

.section-check{
  opacity:0; transform:scale(0.5);
  transition:opacity 0.4s ease, transform 0.4s cubic-bezier(0.34,1.56,0.64,1);
  color:var(--teal); font-weight:700;
}
.section.is-audited .section-check,
.contact.is-audited .section-check{
  opacity:1; transform:scale(1);
}

/* ==========================================================
   PROJECTS
========================================================== */
.project{
  background:var(--surface); border:1px solid var(--border); border-radius:12px;
  padding:clamp(1.5rem,3vw,2.25rem); margin-bottom:1.5rem;
  transition:border-color 0.3s ease, transform 0.3s ease, box-shadow 0.3s ease;
  box-shadow:0 1px 2px rgba(20,24,26,0.03);
}
.project:hover{
  border-color:var(--teal);
  transform:translateY(-3px);
  box-shadow:0 16px 32px -16px rgba(13,148,136,0.25);
}
.project:last-child{ margin-bottom:0; }

.project-meta{ display:flex; gap:0.6rem; flex-wrap:wrap; margin-bottom:1rem; }
.tag{
  font-family:var(--font-mono); font-size:0.68rem; letter-spacing:0.05em;
  padding:0.3rem 0.6rem; border-radius:4px; color:var(--text-dim);
  border:1px solid var(--border); text-transform:uppercase;
  background:var(--surface-2);
}
.tag-verified{
  color:var(--teal-deep); border-color:var(--teal); background:var(--teal-tint);
}

.project-title{
  font-family:var(--font-display); font-size:1.4rem; font-weight:600; margin:0 0 0.15rem;
  color:var(--text);
}
.project-sub{ color:var(--text-dim); font-size:0.9rem; margin:0 0 1rem; }
.project-desc{ color:var(--text-dim); font-size:0.95rem; max-width:70ch; margin:0 0 1.25rem; }

.project-stack{ display:flex; flex-wrap:wrap; gap:0.5rem; margin-bottom:1.25rem; }
.project-stack li{
  font-family:var(--font-mono); font-size:0.72rem; color:var(--text-dim);
  padding:0.25rem 0.55rem; background:var(--surface-2); border-radius:4px;
}

.link-arrow{
  font-family:var(--font-mono); font-size:0.85rem; color:var(--teal-deep);
  border-bottom:1px solid var(--teal); padding-bottom:2px; transition:border-color 0.2s ease, color 0.2s ease;
}
.link-arrow:hover{ color:var(--teal); border-color:var(--teal-deep); }

/* ==========================================================
   SKILLS
========================================================== */
.skills-grid{
  display:grid; grid-template-columns:repeat(auto-fit, minmax(200px,1fr)); gap:1.25rem;
}
.skill-group{
  background:var(--surface); border:1px solid var(--border); border-radius:12px; padding:1.5rem;
  transition:border-color 0.3s ease, transform 0.3s ease;
  box-shadow:0 1px 2px rgba(20,24,26,0.03);
}
.skill-group:hover{ border-color:var(--teal); transform:translateY(-2px); }
.skill-group h3{
  font-family:var(--font-mono); font-size:0.78rem; letter-spacing:0.05em;
  color:var(--teal-deep); text-transform:uppercase; margin:0 0 1rem;
}
.skill-group ul{ display:flex; flex-direction:column; gap:0.55rem; }
.skill-group li{ font-size:0.92rem; color:var(--text-dim); }

/* ==========================================================
   EDUCATION / TIMELINE
========================================================== */
.timeline{ display:flex; flex-direction:column; gap:0; }
.timeline-item{
  display:grid; grid-template-columns:200px 1fr; gap:2rem;
  padding:1.75rem 0; border-top:1px solid var(--border-soft);
}
.timeline-item:first-child{ border-top:none; }
.timeline-date{
  font-family:var(--font-mono); font-size:0.8rem; color:var(--text-faint); padding-top:0.15rem;
}
.timeline-content h3{
  font-family:var(--font-display); font-size:1.15rem; font-weight:600; margin:0 0 0.35rem;
  color:var(--text);
}
.timeline-org{ color:var(--teal-deep); font-size:0.88rem; margin:0 0 0.5rem; }
.timeline-desc{ color:var(--text-dim); font-size:0.92rem; margin:0; max-width:60ch; }

/* ==========================================================
   CERTIFICATIONS
========================================================== */
.cert-grid{
  display:grid; grid-template-columns:repeat(auto-fit, minmax(240px,1fr)); gap:1.25rem;
}
.cert-card{
  background:var(--surface); border:1px solid var(--border); border-radius:12px; padding:1.5rem;
  position:relative;
  transition:border-color 0.3s ease, transform 0.3s ease;
  box-shadow:0 1px 2px rgba(20,24,26,0.03);
}
.cert-card:hover{ border-color:var(--teal); transform:translateY(-2px); }
.cert-year{
  font-family:var(--font-mono); font-size:0.72rem; color:var(--teal-deep);
  border:1px solid var(--teal); border-radius:4px; padding:0.2rem 0.5rem;
  display:inline-block; margin-bottom:0.85rem; background:var(--teal-tint);
}
.cert-card h3{
  font-family:var(--font-display); font-size:1rem; font-weight:600; margin:0 0 0.35rem; line-height:1.35;
  color:var(--text);
}
.cert-issuer{ color:var(--text-dim); font-size:0.85rem; margin:0; }

/* ==========================================================
   CONTACT (dark, giant headline + circular CTA)
========================================================== */
.contact{
  background:var(--dark-bg);
  color:var(--dark-text);
  padding:clamp(4rem,10vw,7rem) var(--pad);
  position:relative;
}
.section-label-dark{ color:var(--teal-glow); }
.section-label-dark .section-check{ color:var(--teal-glow); }

.contact-main{
  max-width:var(--max-w); margin:0 auto;
  display:flex; align-items:center; justify-content:space-between;
  gap:2rem; flex-wrap:wrap;
  padding:1.5rem 0 clamp(2.5rem,6vw,4rem);
}
.contact-title{
  font-family:var(--font-display); font-weight:700;
  font-size:clamp(3rem, 8vw, 5.5rem);
  line-height:0.95; letter-spacing:-0.02em; margin:0;
  color:var(--dark-text);
}
.contact-cta{
  width:clamp(120px,14vw,160px); height:clamp(120px,14vw,160px);
  border-radius:50%;
  background:var(--teal);
  color:#ffffff;
  display:flex; align-items:center; justify-content:center;
  text-align:center;
  font-family:var(--font-mono); font-size:0.9rem; font-weight:600;
  flex-shrink:0;
  transition:transform 0.3s ease, background 0.3s ease;
}
.contact-cta:hover{ background:var(--teal-deep); transform:scale(1.06); }
.contact-cta span{ line-height:1.3; }

.contact-lead{
  max-width:var(--max-w); margin:0 auto;
  color:var(--dark-text-dim); font-size:1.05rem; max-width:55ch;
  padding-bottom:2.5rem; border-bottom:1px solid var(--dark-border);
}

.contact-chips{
  max-width:var(--max-w); margin:0 auto;
  display:flex; flex-wrap:wrap; gap:0.85rem;
  padding-top:2.5rem;
}
.chip{
  font-family:var(--font-mono); font-size:0.85rem;
  padding:0.7rem 1.3rem; border-radius:999px;
  border:1px solid var(--dark-border); color:var(--dark-text);
  transition:border-color 0.2s ease, color 0.2s ease, background 0.2s ease;
}
.chip:hover{ border-color:var(--teal-glow); color:var(--teal-glow); background:rgba(13,148,136,0.08); }

/* ==========================================================
   FOOTER
========================================================== */
.footer{
  max-width:var(--max-w); margin:0 auto; padding:2.5rem var(--pad) 3.5rem;
  display:flex; justify-content:space-between; flex-wrap:wrap; gap:0.5rem;
  border-top:1px solid var(--border-soft);
  font-family:var(--font-mono); font-size:0.78rem; color:var(--text-faint);
}

/* ==========================================================
   SCROLL-REVEAL ANIMATION STATES
========================================================== */
.reveal{
  opacity:0;
  transform:translateY(28px) scale(0.98);
  transition:opacity 0.7s cubic-bezier(0.16,1,0.3,1), transform 0.7s cubic-bezier(0.16,1,0.3,1);
}
.reveal.is-visible{
  opacity:1;
  transform:translateY(0) scale(1);
}

/* ==========================================================
   RESPONSIVE
========================================================== */
@media (max-width:860px){
  .about-grid{ grid-template-columns:1fr; }
  .contact-main{ flex-direction:column; align-items:flex-start; }
}

@media (max-width:720px){
  .nav-links{
    position:fixed; top:0; right:0; bottom:0; width:min(300px, 80vw);
    background:var(--dark-surface); flex-direction:column; align-items:flex-start;
    padding:6rem 2rem 2rem; gap:1.5rem;
    transform:translateX(100%); transition:transform 0.3s ease;
    border-left:1px solid var(--dark-border);
    z-index:15;
  }
  .nav-links.open{ transform:translateX(0); }
  .nav-toggle{ display:flex; }
  .nav-toggle.open span:nth-child(1){ transform:rotate(45deg) translate(5px,5px); }
  .nav-toggle.open span:nth-child(2){ opacity:0; }
  .nav-toggle.open span:nth-child(3){ transform:rotate(-45deg) translate(5px,-5px); }

  .timeline-item{ grid-template-columns:1fr; gap:0.5rem; }
  .audit-rail{ width:2px; }
  .hero-name{ font-size:clamp(3.25rem, 15vw, 5rem); }
}

@media (max-width:480px){
  .about-actions{ flex-direction:column; align-items:stretch; }
  .btn{ justify-content:center; }
}