/* ===========================================================
   Tangguh Satria Negara — Personal Portfolio
   Design tokens
=========================================================== */
:root{
  --ink:        #1B2440;
  --canvas:     #F6F3EC;
  --canvas-2:   #EFEADC;
  --copper:     #B5652F;
  --copper-2:   #8F4B20;
  --text:       #232323;
  --text-soft:  #55564F;
  --line:       #D8D2C4;
  --white:      #FFFFFF;

  --font-display: "Fraunces", serif;
  --font-body:    "Space Grotesk", sans-serif;
  --font-mono:    "JetBrains Mono", monospace;

  --max: 1080px;
  --radius: 4px;
}

*,*::before,*::after{ box-sizing: border-box; }
html{ scroll-behavior: smooth; }
body{
  margin:0;
  background: var(--canvas);
  color: var(--text);
  font-family: var(--font-body);
  font-size: 16px;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}
h1,h2,h3{
  font-family: var(--font-display);
  color: var(--ink);
  margin: 0 0 .5em;
  line-height: 1.15;
  font-weight: 600;
}
p{ margin: 0 0 1em; color: var(--text-soft); }
a{ color: inherit; text-decoration: none; }
ul{ list-style: none; margin:0; padding:0; }
.wrap{ max-width: var(--max); margin: 0 auto; padding: 0 24px; }

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

@media (prefers-reduced-motion: reduce){
  *{ animation-duration: .001ms !important; transition-duration: .001ms !important; scroll-behavior: auto !important; }
}

/* decorative left thread accent, echoes a woven/kain edge */
.thread{
  position: fixed;
  top:0; left:0; bottom:0;
  width: 6px;
  background: repeating-linear-gradient(180deg, var(--copper) 0 22px, var(--ink) 22px 44px);
  z-index: 40;
}

/* ===== Header ===== */
.site-header{
  position: sticky; top:0; z-index: 30;
  background: rgba(246,243,236,.9);
  backdrop-filter: blur(6px);
  border-bottom: 1px solid var(--line);
}
.header-inner{
  display:flex; align-items:center; justify-content:space-between;
  padding-top: 18px; padding-bottom: 18px;
}
.brand{
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 1.3rem;
  color: var(--ink);
}
.brand-dot{ color: var(--copper); }
.nav{ display:flex; gap: 28px; align-items:center; }
.nav a{ font-size: .95rem; color: var(--text); position:relative; }
.nav a:not(.nav-cta)::after{
  content:""; position:absolute; left:0; right:0; bottom:-4px; height:1px;
  background: var(--copper); transform: scaleX(0); transform-origin: left;
  transition: transform .2s ease;
}
.nav a:not(.nav-cta):hover::after{ transform: scaleX(1); }
.nav-cta{
  border: 1px solid var(--ink);
  padding: 7px 16px;
  border-radius: var(--radius);
}
.nav-cta:hover{ background: var(--ink); color: var(--canvas); }
.nav-toggle{
  display:none; flex-direction:column; justify-content:center; gap:5px;
  width:34px; height:34px; background:none; border:none; cursor:pointer;
}
.nav-toggle span{ height:2px; background: var(--ink); border-radius:2px; }

/* ===== Hero ===== */
.hero{
  display:grid;
  grid-template-columns: 1.15fr .85fr;
  gap: 48px;
  align-items:center;
  padding: 72px 24px 88px;
}
.eyebrow-plain{
  font-family: var(--font-mono);
  font-size: .8rem;
  color: var(--copper-2);
  margin-bottom: 14px;
  letter-spacing: .02em;
}
.hero h1{
  font-size: clamp(2.1rem, 4vw, 3.1rem);
  max-width: 14ch;
}
.lede{
  max-width: 52ch;
  font-size: 1.05rem;
}
.hero-actions{ display:flex; gap: 14px; margin-top: 12px; flex-wrap: wrap; }
.hero-mark{ text-align:center; }
.parang-svg{ width: 100%; height: auto; }
.mark-caption{
  font-family: var(--font-mono);
  font-size: .72rem;
  color: var(--text-soft);
  margin-top: 6px;
}

/* ===== Buttons ===== */
.btn{
  display:inline-block;
  font-family: var(--font-body);
  font-weight: 600;
  font-size: .95rem;
  padding: 12px 22px;
  border-radius: var(--radius);
  border: 1px solid transparent;
  cursor:pointer;
  transition: background .18s ease, color .18s ease, border-color .18s ease, transform .12s ease;
}
.btn:active{ transform: translateY(1px); }
.btn-primary{ background: var(--ink); color: var(--canvas); }
.btn-primary:hover{ background: var(--copper); }
.btn-ghost{ border-color: var(--ink); color: var(--ink); }
.btn-ghost:hover{ background: var(--ink); color: var(--canvas); }
.btn-small{ padding: 8px 16px; font-size: .85rem; }

/* ===== Sections ===== */
.section{ padding: 64px 24px; border-top: 1px solid var(--line); }
.section-head{ margin-bottom: 36px; max-width: 60ch; }
.section-sub{ font-size: 1rem; }

.reveal{ opacity: 0; transform: translateY(14px); transition: opacity .5s ease, transform .5s ease; }
.reveal.is-visible{ opacity: 1; transform: none; }

/* About */
.about-grid{
  display:grid;
  grid-template-columns: 1.3fr .9fr;
  gap: 48px;
  align-items:start;
}
.about-text{ font-size: 1.02rem; }
.about-facts{ margin:0; display:grid; gap: 16px; }
.about-facts div{ border-top: 1px solid var(--line); padding-top: 10px; }
.about-facts dt{
  font-family: var(--font-mono); font-size: .72rem; text-transform: none;
  color: var(--copper-2); margin-bottom: 4px;
}
.about-facts dd{ margin:0; color: var(--ink); font-weight: 600; }

/* Skills */
.skills-grid{
  display:grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 28px;
}
.skill-group h3{ font-size: 1.05rem; margin-bottom: 14px; }
.tag-list{ display:flex; flex-wrap: wrap; gap: 8px; }
.tag-list li{
  font-family: var(--font-mono);
  font-size: .78rem;
  padding: 6px 11px;
  background: var(--canvas-2);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  color: var(--ink);
}

/* Projects */
.project-card{
  display:grid;
  grid-template-columns: 1fr;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 32px;
  background: var(--white);
  margin-bottom: 20px;
}
.project-card-alt{ background: var(--canvas-2); }
.project-tag{
  font-family: var(--font-mono);
  font-size: .74rem;
  color: var(--copper-2);
  margin-bottom: 8px;
}
.project-info h3{ font-size: 1.4rem; }
.stack-list{ display:flex; flex-wrap:wrap; gap: 8px; margin: 14px 0 18px; }
.stack-list li{
  font-size: .78rem;
  padding: 5px 10px;
  border: 1px solid var(--ink);
  border-radius: var(--radius);
  color: var(--ink);
}
.project-links{ display:flex; gap: 12px; flex-wrap: wrap; }

/* Quote */
.quote-block{
  border-left: 3px solid var(--copper);
  padding: 4px 0 4px 24px;
  margin: 0;
  max-width: 68ch;
}
.quote-block p{
  font-family: var(--font-display);
  font-size: 1.25rem;
  color: var(--ink);
  font-style: italic;
}
.quote-block cite{
  font-family: var(--font-mono);
  font-size: .8rem;
  color: var(--text-soft);
  font-style: normal;
}

/* Contact */
.contact-grid{
  display:grid;
  grid-template-columns: 1.3fr .8fr;
  gap: 48px;
}
.contact-form{ display:grid; gap: 6px; }
.contact-form label{
  font-family: var(--font-mono); font-size: .74rem; color: var(--copper-2);
  margin-top: 10px;
}
.contact-form input, .contact-form textarea{
  font-family: var(--font-body);
  font-size: .95rem;
  padding: 11px 13px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--white);
  color: var(--text);
}
.contact-form input:focus, .contact-form textarea:focus{ border-color: var(--copper); }
.contact-form button{ margin-top: 16px; justify-self: start; }
.form-note{ font-size: .85rem; color: var(--copper-2); min-height: 1.2em; }
.contact-side{ display:grid; gap: 22px; align-content:start; }
.contact-side h3{ font-size: .95rem; margin-bottom: 4px; }
.contact-side p{ margin:0; }

/* ===== Footer ===== */
.site-footer{ border-top: 1px solid var(--line); padding: 28px 0 44px; }
.footer-inner{
  display:flex; justify-content:space-between; align-items:center; flex-wrap: wrap; gap: 10px;
}
.footer-inner p{ margin:0; font-size: .85rem; }
.footer-inner a{ font-size: .85rem; color: var(--copper-2); }

/* ===== Responsive ===== */
@media (max-width: 860px){
  .hero{ grid-template-columns: 1fr; padding-top: 48px; }
  .hero-mark{ order: -1; max-width: 220px; margin: 0 auto; }
  .about-grid, .contact-grid{ grid-template-columns: 1fr; }
  .skills-grid{ grid-template-columns: 1fr 1fr; }
}
@media (max-width: 680px){
  .nav{
    position: absolute; top: 100%; left:0; right:0;
    background: var(--canvas); border-bottom: 1px solid var(--line);
    flex-direction: column; align-items: flex-start; gap: 4px;
    padding: 16px 24px 22px;
    display: none;
  }
  .nav.is-open{ display:flex; }
  .nav-toggle{ display:flex; }
  .skills-grid{ grid-template-columns: 1fr; }
  .thread{ width: 4px; }
}