/* ============================================================
   TOKENS
============================================================ */
:root{
  --bg: #0B111C;
  --bg-elev: #101827;
  --bg-elev-2: #141F33;
  --grid-line: rgba(148,178,216,0.07);
  --ink: #EAF0FA;
  --ink-muted: #8DA0BD;
  --ink-faint: #5D6E89;
  --accent: #F2A93C;
  --accent-ink: #1A1206;
  --accent-2: #57D9C4;
  --border: rgba(234,240,250,0.12);
  --border-strong: rgba(234,240,250,0.22);
  --shadow: 0 20px 60px -20px rgba(0,0,0,0.55);

  --font-display: "Space Grotesk", sans-serif;
  --font-body: "Inter", sans-serif;
  --font-mono: "IBM Plex Mono", monospace;

  --container: 1120px;
  --radius: 6px;
}

html[data-theme="light"]{
  --bg: #EDF0F5;
  --bg-elev: #FFFFFF;
  --bg-elev-2: #F4F6FA;
  --grid-line: rgba(16,24,39,0.05);
  --ink: #101827;
  --ink-muted: #4B5A72;
  --ink-faint: #8494AC;
  --accent: #C2790F;
  --accent-ink: #FFFFFF;
  --accent-2: #0E8F7E;
  --border: rgba(16,24,39,0.1);
  --border-strong: rgba(16,24,39,0.2);
  --shadow: 0 20px 50px -25px rgba(16,24,39,0.25);
}

*, *::before, *::after{ box-sizing: border-box; }

html{ scroll-behavior: smooth; }
@media (prefers-reduced-motion: reduce){
  html{ scroll-behavior: auto; }
  *, *::before, *::after{ animation-duration: 0.001ms !important; animation-iteration-count: 1 !important; transition-duration: 0.001ms !important; scroll-behavior: auto !important; }
}

body{
  margin: 0;
  background: var(--bg);
  color: var(--ink);
  font-family: var(--font-body);
  font-size: 16px;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  transition: background .35s ease, color .35s ease;
  overflow-x: hidden;
}

.wrap{
  max-width: var(--container);
  margin: 0 auto;
  padding: 0 28px;
}

h1,h2,h3{
  font-family: var(--font-display);
  color: var(--ink);
  margin: 0;
  letter-spacing: -0.01em;
}

p{ margin: 0; color: var(--ink-muted); }

a{ color: inherit; text-decoration: none; }

.mono{ font-family: var(--font-mono); }

img{ max-width: 100%; display: block; }

.skip-link{
  position: absolute; left: -999px; top: 0;
  background: var(--accent); color: var(--accent-ink);
  padding: 10px 16px; z-index: 999; border-radius: 0 0 6px 0;
}
.skip-link:focus{ left: 0; }

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

/* ============================================================
   BLUEPRINT GRID BACKDROP
============================================================ */
.grid-backdrop{
  position: fixed;
  inset: 0;
  z-index: 0;
  pointer-events: none;
  background-image:
    linear-gradient(var(--grid-line) 1px, transparent 1px),
    linear-gradient(90deg, var(--grid-line) 1px, transparent 1px);
  background-size: 56px 56px;
  mask-image: radial-gradient(ellipse 80% 60% at 50% 0%, black 40%, transparent 90%);
}

/* ============================================================
   CURSOR — terminal-style crosshair
============================================================ */
/* --- Custom Cursor (Smooth Follower) --- */
/* --- Custom Cursor (Smooth Follower) --- */
.cursor-dot {
  width: 6px;
  height: 6px;
  background-color: var(--accent, #6366f1);
  position: fixed;
  top: 0;
  left: 0;
  border-radius: 50%;
  pointer-events: none;
  z-index: 99999;
  transform: translate(-50%, -50%);
  transition: opacity 0.2s ease; /* Removed transform transition */
  will-change: left, top;
}

.cursor-ring {
  width: 32px;
  height: 32px;
  border: 1.5px solid var(--accent, #6366f1);
  background: rgba(99, 102, 241, 0.05);
  position: fixed;
  top: 0;
  left: 0;
  border-radius: 50%;
  pointer-events: none;
  z-index: 99998;
  transform: translate(-50%, -50%);
  transition: width 0.25s ease, height 0.25s ease, background-color 0.25s ease, border-color 0.25s ease, opacity 0.2s ease;
  will-change: left, top;
}

/* Expansion state when hovering over interactive elements */
.cursor-ring.is-hovering {
  width: 52px;
  height: 52px;
  background: rgba(99, 102, 241, 0.15);
  border-color: rgba(99, 102, 241, 0.8);
}
/* Hide custom cursor on mobile / touch screens */
@media (hover: none) and (pointer: coarse) {
  .cursor-dot,
  .cursor-ring {
    display: none !important;
  }
}
/* ============================================================
   HEADER
============================================================ */
.site-header{
  position: sticky; top: 0; z-index: 100;
  background: color-mix(in srgb, var(--bg) 82%, transparent);
  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-family: var(--font-display);
  font-weight: 600;
  font-size: 1.15rem;
  letter-spacing: 0.02em;
}
.logo-dot{ color: var(--accent); }

.site-nav{ display: flex; gap: 32px; }
.site-nav a{
  font-size: 0.94rem;
  color: var(--ink-muted);
  position: relative;
  padding: 4px 0;
  transition: color .2s ease;
}
.site-nav a::after{
  content: "";
  position: absolute; left: 0; bottom: 0;
  width: 0; height: 1px;
  background: var(--accent);
  transition: width .25s ease;
}
.site-nav a:hover{ color: var(--ink); }
.site-nav a:hover::after{ width: 100%; }

.header-actions{ display: flex; align-items: center; gap: 14px; }

.theme-toggle{
  background: none; border: 1px solid var(--border);
  color: var(--ink-muted);
  width: 38px; height: 38px; border-radius: 50%;
  display: flex; align-items: center; justify-content: center;
  cursor: pointer;
  transition: border-color .2s ease, color .2s ease, transform .2s ease;
}
.theme-toggle:hover{ border-color: var(--accent); color: var(--accent); transform: rotate(-12deg); }
.theme-toggle .icon-sun{ display: none; }
html[data-theme="light"] .theme-toggle .icon-sun{ display: block; }
html[data-theme="light"] .theme-toggle .icon-moon{ display: none; }

.nav-toggle{
  display: none;
  background: none; border: none; cursor: pointer;
  width: 38px; height: 38px;
  flex-direction: column; align-items: center; justify-content: center; gap: 5px;
}
.nav-toggle span{
  width: 20px; height: 1.6px; background: var(--ink); border-radius: 2px;
  transition: transform .25s ease, opacity .25s ease;
}
.nav-toggle.is-open span:nth-child(1){ transform: translateY(6.5px) rotate(45deg); }
.nav-toggle.is-open span:nth-child(2){ opacity: 0; }
.nav-toggle.is-open span:nth-child(3){ transform: translateY(-6.5px) rotate(-45deg); }

.mobile-nav{
  display: none;
  flex-direction: column;
  padding: 8px 28px 20px;
  border-bottom: 1px solid var(--border);
  background: var(--bg);
}
.mobile-nav a{
  padding: 12px 0;
  border-bottom: 1px solid var(--border);
  color: var(--ink-muted);
  font-size: 1.02rem;
}
.mobile-nav a:last-child{ border-bottom: none; }
.mobile-nav.is-open{ display: flex; }

/* ============================================================
   BUTTONS / LINKS
============================================================ */
.btn{
  display: inline-flex; align-items: center; gap: 9px;
  padding: 13px 22px;
  border-radius: var(--radius);
  font-size: 0.94rem; font-weight: 500;
  border: 1px solid transparent;
  cursor: pointer;
  transition: transform .2s ease, border-color .2s ease, background .2s ease, color .2s ease;
  white-space: nowrap;
}
.btn svg{ transition: transform .2s ease; }
.btn:hover svg{ transform: translateX(3px); }
.btn-primary{
  background: var(--accent);
  color: var(--accent-ink);
}
.btn-primary:hover{ transform: translateY(-2px); }
.btn-ghost{
  background: transparent;
  border-color: var(--border-strong);
  color: var(--ink);
}
.btn-ghost:hover{ border-color: var(--accent); color: var(--accent); transform: translateY(-2px); }

.link-arrow{
  position: relative;
  font-size: 0.93rem;
  font-weight: 500;
  color: var(--ink);
  padding-bottom: 3px;
  border-bottom: 1px solid var(--border-strong);
  transition: border-color .2s ease, color .2s ease, padding-right .2s ease;
}
.link-arrow:hover{ color: var(--accent); border-color: var(--accent); }

/* ============================================================
   REVEAL ANIMATION
============================================================ */
/* Content is visible by default (no-JS / JS-failure safe).
   JS adds .reveal-armed only once IntersectionObserver is
   confirmed available, which is what actually hides elements
   ahead of their entrance. */
[data-reveal].reveal-armed{
  opacity: 0;
  transform: translateY(16px);
  transition: opacity .7s cubic-bezier(.2,.7,.2,1), transform .7s cubic-bezier(.2,.7,.2,1);
}
[data-reveal].reveal-armed.in-view{
  opacity: 1;
  transform: translateY(0);
}

/* ============================================================
   HERO
============================================================ */
.hero{
  position: relative;
  padding: 76px 0 96px;
}
.hero-grid{
  display: grid;
  grid-template-columns: 1.25fr 0.85fr;
  gap: 56px;
  align-items: center;
}
.eyebrow{
  font-family: var(--font-mono);
  font-size: 0.86rem;
  color: var(--accent-2);
  margin-bottom: 18px;
}
.hero-title{
  font-size: clamp(2.6rem, 5.4vw, 4.1rem);
  line-height: 1.04;
  font-weight: 600;
}
.hero-title .line{ display: block; }
.accent-dot{ color: var(--accent); }
.hero-role{
  font-family: var(--font-mono);
  color: var(--ink-muted);
  font-size: 1.05rem;
  margin-top: 18px;
}
.hero-desc{
  max-width: 46ch;
  margin-top: 18px;
  font-size: 1.04rem;
  color: var(--ink-muted);
}
.hero-actions{
  display: flex; gap: 14px; flex-wrap: wrap;
  margin-top: 34px;
}
.hero-stats{
  display: flex; gap: 40px;
  margin: 48px 0 0;
  padding-top: 28px;
  border-top: 1px solid var(--border);
}
.hero-stats dt{
  font-family: var(--font-display);
  font-size: 1.5rem; font-weight: 600;
  color: var(--ink);
}
.hero-stats dd{
  margin: 4px 0 0;
  font-size: 0.85rem;
  color: var(--ink-faint);
}

/* hero photo frame */
.hero-frame-wrap{ display: flex; flex-direction: column; align-items: center; }
.hero-frame{
  position: relative;
  width: min(86vw, 320px);
  height: min(86vw, 320px);
  aspect-ratio: 1 / 1;
  background: var(--bg-elev);
  border: 1px solid var(--border);
  border-radius: 10px;
  overflow: hidden;
}
.corner{
  position: absolute; width: 22px; height: 22px;
  fill: none; stroke: var(--accent);
  stroke-width: 2.4;
  z-index: 3;
}
.corner path{
  stroke-dasharray: 60;
  stroke-dashoffset: 60;
  transition: stroke-dashoffset 1s ease .3s;
}
.in-view .corner path{ stroke-dashoffset: 0; }
.corner-tl{ top: 10px; left: 10px; }
.corner-tr{ top: 10px; right: 10px; }
.corner-bl{ bottom: 10px; left: 10px; }
.corner-br{ bottom: 10px; right: 10px; }

.photo-carousel{ position: relative; width: 100%; height: 100%; }
.photo-carousel .slide{
  position: absolute; inset: 0;
  width: 100%; height: 100%;
  object-fit: cover;
  opacity: 0;
  transition: opacity 1s ease;
}
.photo-carousel .slide.is-active{ opacity: 1; }

.frame-tag{
  position: absolute; left: 14px; bottom: 14px;
  display: flex; align-items: center; gap: 7px;
  background: color-mix(in srgb, var(--bg) 68%, transparent);
  backdrop-filter: blur(6px);
  border: 1px solid var(--border);
  padding: 6px 11px;
  border-radius: 20px;
  font-family: var(--font-mono);
  font-size: 0.72rem;
  color: var(--ink);
  z-index: 3;
}
.status-dot{
  width: 7px; height: 7px; border-radius: 50%;
  background: var(--accent-2);
  box-shadow: 0 0 0 0 rgba(87,217,196,.6);
  animation: pulse 2.2s infinite;
  flex: none;
}
@keyframes pulse{
  0%{ box-shadow: 0 0 0 0 rgba(87,217,196,.55); }
  70%{ box-shadow: 0 0 0 7px rgba(87,217,196,0); }
  100%{ box-shadow: 0 0 0 0 rgba(87,217,196,0); }
}
.frame-caption{
  margin-top: 16px;
  display: flex; gap: 8px; align-items: baseline;
  font-size: 0.85rem;
}
.frame-caption .mono{ color: var(--ink-faint); font-size: 0.78rem; }
.frame-caption a{ color: var(--ink); border-bottom: 1px solid var(--border-strong); }
.frame-caption a:hover{ color: var(--accent); border-color: var(--accent); }

/* ============================================================
   SECTIONS (shared)
============================================================ */
.section{ position: relative; padding: 100px 0; }
.section-alt{ background: var(--bg-elev); }
.section-head{
  max-width: 54ch;
  margin-bottom: 52px;
}
.section-head h2{
  font-size: clamp(1.7rem, 3vw, 2.2rem);
  margin-bottom: 12px;
}
.section-head p{ font-size: 1.02rem; }

/* ============================================================
   SKILLS
============================================================ */
.skills-grid{
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 40px 56px;
}
.skill-group h3{
  font-size: 1.02rem;
  font-weight: 600;
  margin-bottom: 16px;
  padding-bottom: 12px;
  border-bottom: 1px solid var(--border);
}
.chip-row{
  list-style: none; margin: 0; padding: 0;
  display: flex; flex-wrap: wrap; gap: 9px;
}
.chip-row li{
  font-family: var(--font-mono);
  font-size: 0.82rem;
  color: var(--ink-muted);
  border: 1px solid var(--border);
  padding: 7px 13px;
  border-radius: 20px;
  transition: border-color .2s ease, color .2s ease, transform .2s ease;
}
.chip-row li:hover{
  border-color: var(--accent);
  color: var(--ink);
  transform: translateY(-2px);
}

/* ============================================================
   PROJECTS
============================================================ */
.project-grid{
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 24px;
}
.project-card{
  position: relative;
  padding: 28px;
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  transition: border-color .3s ease, transform .3s ease, box-shadow .3s ease;
}
.section-alt .project-card{ background: var(--bg-elev-2); }
.project-card:hover{
  border-color: var(--border-strong);
  transform: translateY(-4px);
  box-shadow: var(--shadow);
}
.project-card-top{
  display: flex; align-items: center; justify-content: space-between;
  gap: 12px;
  margin-bottom: 18px;
}
.project-tag{
  font-family: var(--font-mono);
  font-size: 0.74rem;
  color: var(--ink-faint);
}
.live-pill{
  display: inline-flex; align-items: center; gap: 6px;
  font-family: var(--font-mono);
  font-size: 0.72rem;
  color: var(--accent-2);
  border: 1px solid color-mix(in srgb, var(--accent-2) 40%, transparent);
  padding: 3px 9px 3px 8px;
  border-radius: 20px;
  flex: none;
}
.project-card h3{
  font-size: 1.32rem;
  margin-bottom: 4px;
  position: relative;
  display: inline-block;
}
.project-card h3::after{
  content: "";
  position: absolute; left: 0; bottom: -4px;
  width: 0; height: 2px;
  background: var(--accent);
  transition: width .3s ease;
}
.project-card:hover h3::after{ width: 100%; }
.project-sub{
  font-size: 0.88rem;
  color: var(--accent-2);
  margin-bottom: 14px;
}
.project-desc{
  font-size: 0.95rem;
  margin-bottom: 22px;
}
.project-links{ display: flex; gap: 22px; }

.more-work{ margin-top: 36px; text-align: center; }

/* ============================================================
   CREDENTIALS
============================================================ */
.cert-grid{
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 22px;
}
.cert-card{
  display: block;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
  background: var(--bg-elev);
  transition: border-color .3s ease, transform .3s ease, box-shadow .3s ease;
}
.cert-card:hover{
  border-color: var(--accent);
  transform: translateY(-4px);
  box-shadow: var(--shadow);
}
.cert-card img{
  width: 100%;
  aspect-ratio: 4 / 3;
  object-fit: cover;
  filter: saturate(0.9);
  transition: filter .3s ease, transform .5s ease;
}
.cert-card:hover img{ filter: saturate(1.05); transform: scale(1.03); }
.cert-label{
  padding: 14px 16px;
  display: flex; flex-direction: column; gap: 2px;
  border-top: 1px solid var(--border);
}
.cert-label span{ font-size: 0.92rem; font-weight: 500; }
.cert-label small{ font-size: 0.76rem; color: var(--ink-faint); }
.cert-note{
  margin-top: 30px;
  font-size: 0.92rem;
  font-style: normal;
}

/* ============================================================
   CONTACT
============================================================ */
.contact-inner{ max-width: 60ch; }
.contact-inner h2{ font-size: clamp(2rem, 4vw, 2.6rem); margin-bottom: 16px; }
.contact-inner > p{ font-size: 1.05rem; margin-bottom: 32px; }
.contact-links{ display: flex; gap: 14px; flex-wrap: wrap; }
.contact-phone{ margin-top: 26px; color: var(--ink-faint); font-size: 0.88rem; }

/* ============================================================
   FOOTER
============================================================ */
.site-footer{ border-top: 1px solid var(--border); }
.footer-inner{
  display: flex; justify-content: space-between; align-items: center;
  padding: 26px 0;
  font-size: 0.82rem;
  color: var(--ink-faint);
}

/* ============================================================
   RESPONSIVE
============================================================ */
@media (max-width: 880px){
  .hero-grid{ grid-template-columns: 1fr; }
  .hero-frame-wrap{ order: -1; margin-bottom: 8px; }
  .hero-frame{ width: min(70vw, 260px); height: min(70vw, 260px); margin: 0 auto; }
  .skills-grid{ grid-template-columns: 1fr; gap: 32px; }
  .project-grid{ grid-template-columns: 1fr; }
  .cert-grid{ grid-template-columns: repeat(2, 1fr); }
  .site-nav{ display: none; }
  .nav-toggle{ display: flex; }
}

@media (max-width: 560px){
  .wrap{ padding: 0 20px; }
  .hero{ padding: 48px 0 64px; }
  .hero-stats{ gap: 26px; flex-wrap: wrap; row-gap: 20px; }
  .section{ padding: 68px 0; }
  .cert-grid{ grid-template-columns: 1fr 1fr; }
  .contact-links{ flex-direction: column; }
  .contact-links .btn{ justify-content: center; }
  .footer-inner{ flex-direction: column; gap: 8px; text-align: center; }
}