/* =========================================================
   DESIGN TOKENS
   ========================================================= */
:root{
  --bg: #FFFFFF;
  --bg-elev: #F6F8F9;
  --panel: #FFFFFF;
  --panel-2: #F1F4F6;
  --border: #E2E8EC;
  --text: #16202A;
  --text-muted: #5C6B78;
  --text-dim: #8C99A5;
  --accent: #0F9E92;
  --accent-dim: #0C8078;
  --accent-2: #C77C10;
  --radius: 10px;
  --font-display: 'Space Grotesk', sans-serif;
  --font-body: 'Inter', sans-serif;
  --font-mono: 'JetBrains Mono', monospace;
  --max-width: 980px;
}

*{ box-sizing: border-box; margin: 0; padding: 0; }

html{ scroll-behavior: smooth; }

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

body{
  background: var(--bg);
  color: var(--text);
  font-family: var(--font-body);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

body::before{
  content: "";
  position: fixed;
  inset: 0;
  background-image:
    linear-gradient(rgba(15,158,146,0.045) 1px, transparent 1px),
    linear-gradient(90deg, rgba(15,158,146,0.045) 1px, transparent 1px);
  background-size: 42px 42px;
  pointer-events: none;
  z-index: 0;
}

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

.accent{ color: var(--accent); }

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

/* =========================================================
   TOPBAR
   ========================================================= */
.topbar{
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(255,255,255,0.85);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--border);
}
.topbar-inner{
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0.9rem 1.5rem;
  position: relative;
  display: flex;
  align-items: center;
  justify-content: center;
}
.filetree{
  display: flex;
  gap: 3.75rem;
  font-family: var(--font-mono);
  font-size: 0.85rem;
}
.topbar-right{
  position: absolute;
  right: 1.5rem;
  top: 50%;
  transform: translateY(-50%);
  display: flex;
  align-items: center;
  gap: 0.9rem;
}
.file-item{
  color: var(--text-muted);
  position: relative;
  padding-bottom: 3px;
  transition: color 0.2s ease;
}
.file-item .ext{ color: var(--text-dim); }
.file-item:hover{ color: var(--text); }
.file-item::after{
  content: "";
  position: absolute;
  left: 0; bottom: 0;
  width: 0; height: 1px;
  background: var(--accent);
  transition: width 0.25s ease;
}
.file-item:hover::after{ width: 100%; }
.file-item.active{ color: var(--accent); }

.menu-toggle{
  display: none;
  flex-direction: column;
  gap: 4px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 8px;
}
.menu-toggle span{
  width: 20px; height: 2px;
  background: var(--text);
  border-radius: 2px;
}

/* =========================================================
   HERO
   ========================================================= */
.hero{
  min-height: 92vh;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 3rem 1.5rem;
  position: relative;
  z-index: 1;
}
.hero-inner{
  width: 100%;
  max-width: 760px;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 1.5rem;
}

.terminal-window{
  width: 100%;
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
  box-shadow: 0 20px 45px -20px rgba(20,32,42,0.12);
}
.terminal-titlebar{
  display: flex;
  align-items: center;
  gap: 7px;
  padding: 0.7rem 0.9rem;
  background: var(--panel-2);
  border-bottom: 1px solid var(--border);
}
.dot{ width: 10px; height: 10px; border-radius: 50%; }
.dot.red{ background: #FF5F57; }
.dot.yellow{ background: #FEBC2E; }
.dot.green{ background: #28C840; }
.terminal-title{
  margin-left: 0.6rem;
  font-family: var(--font-mono);
  font-size: 0.78rem;
  color: var(--text-dim);
}

.terminal-body{
  padding: 1.75rem 1.75rem 2rem;
  font-family: var(--font-mono);
}
.line{ font-size: 1rem; }
.prompt{ color: var(--accent); }
.colon{ color: var(--text-dim); }
.cmd{ color: var(--text); }
.cursor{
  color: var(--accent);
  animation: blink 1s step-end infinite;
}
@keyframes blink{ 50%{ opacity: 0; } }

.line-output{ margin-top: 1.25rem; }
.out-name{
  font-family: var(--font-display);
  font-size: clamp(2rem, 5vw, 3rem);
  font-weight: 700;
  letter-spacing: -0.02em;
  line-height: 1.1;
}
.out-role{
  margin-top: 0.6rem;
  color: var(--accent);
  font-size: 0.92rem;
}
.out-desc{
  margin-top: 1rem;
  color: var(--text-muted);
  font-family: var(--font-body);
  font-size: 0.98rem;
  max-width: 52ch;
  line-height: 1.65;
}
.out-links{
  display: flex;
  flex-wrap: wrap;
  gap: 0.6rem;
  margin-top: 1.4rem;
}
.out-actions{
  display: flex;
  gap: 0.9rem;
  margin-top: 1.6rem;
  flex-wrap: wrap;
}

.pill{
  font-family: var(--font-mono);
  font-size: 0.78rem;
  color: var(--text-muted);
  border: 1px solid var(--border);
  padding: 0.45rem 0.8rem;
  border-radius: 999px;
  transition: all 0.2s ease;
}
.pill:hover{
  color: var(--accent);
  border-color: var(--accent-dim);
}

.btn{
  font-family: var(--font-mono);
  font-size: 0.85rem;
  padding: 0.7rem 1.3rem;
  border-radius: 6px;
  border: 1px solid transparent;
  cursor: pointer;
  transition: all 0.2s ease;
  display: inline-block;
}
.btn-primary{
  background: var(--accent);
  color: white;
  font-weight: 600;
}
.btn-primary:hover{ background: #7FF3E0; transform: translateY(-1px); color: black;}
.btn-ghost{
  border-color: var(--border);
  color: var(--text);
}
.btn-ghost:hover{ border-color: var(--accent-dim); color: var(--accent); }
.btn-small{
  padding: 0.45rem 0.9rem;
  font-size: 0.78rem;
  flex-shrink: 0;
}
.btn-icon{ display: inline-block; margin-right: 2px; }

.scroll-hint{
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--text-dim);
  animation: floaty 2.2s ease-in-out infinite;
}
@keyframes floaty{
  0%,100%{ transform: translateY(0); }
  50%{ transform: translateY(5px); }
}

/* =========================================================
   SECTIONS
   ========================================================= */
.section{
  padding: 3rem 1.5rem;
  position: relative;
  z-index: 1;
}
.section-alt{ background: var(--bg-elev); }
.section-inner{
  max-width: var(--max-width);
  margin: 0 auto;
}
.eyebrow{
  font-family: var(--font-mono);
  font-size: 0.8rem;
  color: var(--accent);
  margin-bottom: 0.75rem;
}
.section-title{
  font-family: var(--font-display);
  font-size: clamp(1.7rem, 3.5vw, 2.4rem);
  font-weight: 600;
  letter-spacing: -0.01em;
  margin-bottom: 1.2rem;
}
.section-lead{
  color: var(--text-muted);
  font-size: 1.02rem;
}

/* ABOUT */
.about-grid{
  margin-top: 2.5rem;
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1px;
  background: var(--border);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
}
.about-card{
  background: var(--panel);
  padding: 1.4rem 1.2rem;
}
.about-card-label{
  font-family: var(--font-mono);
  font-size: 0.72rem;
  color: var(--accent);
}
.about-card-value{
  margin-top: 0.5rem;
  font-size: 0.92rem;
  color: var(--text);
}

/* SKILLS */
.skills-json{
  margin-top: 2.5rem;
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1.8rem 2rem;
  font-family: var(--font-mono);
}
.skill-block{ margin-bottom: 1.5rem; }
.skill-block:last-child{ margin-bottom: 0; }
.skill-key{
  color: var(--accent-2);
  font-size: 0.85rem;
  margin-bottom: 0.7rem;
}
.skill-tags{
  display: flex;
  flex-wrap: wrap;
  gap: 0.55rem;
}
.tag{
  font-family: var(--font-mono);
  font-size: 0.78rem;
  color: var(--text);
  background: var(--panel-2);
  border: 1px solid var(--border);
  padding: 0.35rem 0.7rem;
  border-radius: 5px;
  transition: border-color 0.2s ease;
}
.tag:hover{ border-color: var(--accent-dim); color: var(--accent); }

/* PUBLISHED WORK */
.work-grid{
  margin-top: 2.5rem;
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.1rem;
}
.work-card{
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1.4rem 1.3rem;
  display: flex;
  flex-direction: column;
  gap: 0.7rem;
  transition: border-color 0.2s ease, transform 0.2s ease;
}
.work-card:hover{
  border-color: var(--accent-dim);
  transform: translateY(-2px);
}
.work-tag{
  align-self: flex-start;
  font-family: var(--font-mono);
  font-size: 0.68rem;
  color: var(--accent-2);
  border: 1px solid var(--border);
  padding: 0.25rem 0.6rem;
  border-radius: 999px;
}
.work-title{
  font-family: var(--font-display);
  font-size: 1.05rem;
  font-weight: 600;
  line-height: 1.35;
}
.work-desc{
  color: var(--text-muted);
  font-size: 0.88rem;
  line-height: 1.55;
  flex-grow: 1;
}
.work-link{
  font-family: var(--font-mono);
  font-size: 0.78rem;
  color: var(--accent);
}
.work-more{
  margin-top: 2rem;
}

/* EXPERIENCE */
.exp-item{
  border-left: 2px solid var(--border);
  padding: 0 0 2.5rem 1.75rem;
  position: relative;
  margin-top: 0.5rem;
}
.exp-item::before{
  content: "";
  position: absolute;
  left: -6px; top: 4px;
  width: 10px; height: 10px;
  border-radius: 50%;
  background: var(--accent);
  box-shadow: 0 0 0 4px var(--bg);
}
.exp-item:last-child{ padding-bottom: 0; }
.exp-head{
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  flex-wrap: wrap;
  gap: 0.5rem 1rem;
  margin-bottom: 0.9rem;
}
.exp-role{
  font-family: var(--font-display);
  font-size: 1.2rem;
  font-weight: 600;
}
.exp-company{
  color: var(--accent);
  font-size: 0.9rem;
  margin-top: 0.2rem;
}
.exp-date{
  font-family: var(--font-mono);
  font-size: 0.78rem;
  color: var(--text-dim);
  white-space: nowrap;
  padding-top: 0.3rem;
}
.exp-list li{
  color: var(--text-muted);
  font-size: 0.95rem;
  padding-left: 1.2rem;
  position: relative;
  margin-bottom: 0.55rem;
}
.exp-list li::before{
  content: "›";
  position: absolute;
  left: 0;
  color: var(--accent-dim);
  font-family: var(--font-mono);
}

/* EDUCATION */
.edu-grid{
  margin-top: 2.5rem;
  display: grid;
  grid-template-columns: 1.3fr 1fr;
  gap: 3rem;
}
.edu-grid-single{
  grid-template-columns: 1fr;
  max-width: 560px;
}
.edu-col-title{
  font-family: var(--font-display);
  font-size: 1.05rem;
  color: var(--text);
  margin-bottom: 1.2rem;
}
.edu-item{
  padding-bottom: 1.3rem;
  margin-bottom: 1.3rem;
  border-bottom: 1px solid var(--border);
}
.edu-item:last-child{ border-bottom: none; margin-bottom: 0; padding-bottom: 0; }
.edu-school{ font-size: 0.98rem; font-weight: 500; }
.edu-meta{ font-size: 0.85rem; color: var(--text-muted); margin-top: 0.3rem; }
.edu-meta.muted{ color: var(--text-dim); font-family: var(--font-mono); font-size: 0.78rem; }

.cert-list li{
  font-size: 0.92rem;
  color: var(--text-muted);
  padding: 0.6rem 0;
  border-bottom: 1px dashed var(--border);
}
.cert-list li:last-child{ border-bottom: none; }
.cert-list li::before{
  content: "✓ ";
  color: var(--accent);
  font-family: var(--font-mono);
}

/* CONTACT */
.contact-terminal{ margin-top: 2.5rem; }
.contact-form{ margin-top: 1.4rem; }
.form-row{
  display: flex;
  flex-direction: column;
  gap: 0.4rem;
  margin-bottom: 1.1rem;
}
.form-label{
  font-family: var(--font-mono);
  font-size: 0.78rem;
  color: var(--accent-2);
}
.form-row input,
.form-row textarea{
  background: var(--bg-elev);
  border: 1px solid var(--border);
  border-radius: 6px;
  padding: 0.7rem 0.85rem;
  color: var(--text);
  font-family: var(--font-body);
  font-size: 0.92rem;
  resize: vertical;
}
.form-row input:focus,
.form-row textarea:focus{
  outline: none;
  border-color: var(--accent-dim);
}
.form-status{
  margin-top: 0.9rem;
  font-family: var(--font-mono);
  font-size: 0.82rem;
  color: var(--accent);
}
.contact-direct{
  margin-top: 2rem;
  display: flex;
  flex-wrap: wrap;
  gap: 0.6rem;
}

.footer{
  text-align: center;
  padding: 2.5rem 1.5rem;
  color: var(--text-dim);
  font-family: var(--font-mono);
  font-size: 0.8rem;
  border-top: 1px solid var(--border);
  position: relative;
  z-index: 1;
}

/* =========================================================
   RESPONSIVE
   ========================================================= */
@media (max-width: 760px){
  .filetree{
    position: fixed;
    top: 60px; left: 0; right: 0;
    background: var(--bg-elev);
    border-bottom: 1px solid var(--border);
    flex-direction: column;
    gap: 0;
    padding: 0.5rem 1.5rem 1rem;
    transform: translateY(-120%);
    transition: transform 0.25s ease;
  }
  .filetree.open{ transform: translateY(0); }
  .file-item{ padding: 0.7rem 0; border-bottom: 1px solid var(--border); }
  .menu-toggle{ display: flex; }
  .about-grid{ grid-template-columns: 1fr 1fr; }
  .edu-grid{ grid-template-columns: 1fr; gap: 2.5rem; }
  .work-grid{ grid-template-columns: 1fr 1fr; }
  .topbar-inner{ justify-content: flex-end; }
  .topbar-right{ position: static; transform: none; }
}

@media (max-width: 480px){
  .about-grid{ grid-template-columns: 1fr; }
  .work-grid{ grid-template-columns: 1fr; }
  .terminal-body{ padding: 1.3rem 1.1rem 1.6rem; }
  .out-actions{ flex-direction: column; }
  .btn{ text-align: center; }
}