/* ===========================================================
   LUIS A. — Freelance Web Developer Portfolio
   Direction: "workshop, not template" — dark graphite canvas,
   electric blue/violet accent, code-editor motifs (JSON card,
   syntax-colored tags, terminal eyebrows). Built to feel like
   the work of someone who actually writes the code.
   =========================================================== */

:root{
  /* palette */
  --bg:          #0A0D12;
  --bg-soft:     #0D1119;
  --surface:     #131826;
  --surface-2:   #1A2131;
  --line:        rgba(232,238,248,.09);
  --line-2:      rgba(232,238,248,.17);
  --ink:         #EEF1F7;
  --ink-soft:    #A7B0C2;
  --muted:       #6D7689;
  --accent:      #5B8CFF;
  --accent-2:    #8C6BFF;
  --accent-soft: rgba(91,140,255,.14);
  --amber:       #F2A93B;
  --green:       #35D399;
  --red:         #FF6B6B;

  --gradient-accent: linear-gradient(135deg, var(--accent), var(--accent-2));

  /* type */
  --font-display: "Space Grotesk", "Segoe UI", system-ui, -apple-system, sans-serif;
  --font-body: "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  --font-mono: "JetBrains Mono", ui-monospace, "SF Mono", "Cascadia Mono", Menlo, Consolas, monospace;

  /* rhythm */
  --container: 1180px;
  --radius-sm: 8px;
  --radius-md: 16px;
  --radius-lg: 26px;
  --shadow-soft: 0 30px 70px -30px rgba(3,6,14,.7);
  --shadow-card: 0 16px 40px -20px rgba(3,6,14,.6);
  --ease: cubic-bezier(.22,.68,0,1);

  color-scheme: dark;
}

/* ---------- reset ---------- */
*,*::before,*::after{ box-sizing:border-box; }
html{ scroll-behavior:smooth; scroll-padding-top:5.5rem; }
body{
  margin:0;
  background:var(--bg);
  color:var(--ink);
  font-family:var(--font-body);
  font-size:16px;
  line-height:1.65;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
img,svg{ display:block; max-width:100%; }
a{ color:inherit; text-decoration:none; }
ul{ list-style:none; margin:0; padding:0; }
h1,h2,h3,p{ margin:0; }
button,input,select,textarea{ font-family:inherit; color:inherit; }
h1,h2,h3{ font-family:var(--font-display); font-weight:600; text-wrap:balance; letter-spacing:-.01em; }

@media (prefers-reduced-motion: reduce){
  html{ scroll-behavior:auto; }
  *{ animation-duration:.001ms !important; animation-iteration-count:1 !important; transition-duration:.001ms !important; }
}

.skip-link{
  position:absolute; left:-999px; top:0; z-index:999;
  background:var(--accent); color:#08101f;
  padding:.8em 1.2em; border-radius:0 0 8px 0; font-weight:700;
}
.skip-link:focus{ left:0; }

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

.container{
  width:100%;
  max-width:var(--container);
  min-width:0;
  margin-inline:auto;
  padding-inline:24px;
}

/* faint background grid, page-wide */
body{
  background-image:
    radial-gradient(60% 45% at 82% -6%, rgba(91,140,255,.10), transparent 60%),
    radial-gradient(50% 40% at 8% 8%, rgba(140,107,255,.08), transparent 60%);
  background-repeat:no-repeat;
}

.eyebrow{
  display:inline-flex; align-items:center; gap:.6em;
  font-family:var(--font-mono);
  font-size:.76rem;
  letter-spacing:.08em;
  color:var(--accent);
  margin:0 0 1em;
}
.eyebrow::before{ content:"//"; color:var(--muted); }

.section-head{ max-width:640px; margin-bottom:clamp(2.2rem,4.5vw,3.4rem); }
.section-head h2{ font-size:clamp(1.9rem,2.6vw + 1rem,2.8rem); }
.section-lead{ margin-top:1rem; color:var(--ink-soft); font-size:1.04rem; max-width:56ch; }
.section-head.center{ margin-inline:auto; text-align:center; }
.section-head.center .eyebrow{ justify-content:center; }

.reveal{ opacity:0; transform:translateY(24px); transition:opacity .7s var(--ease), transform .7s var(--ease); }
.reveal.is-visible{ opacity:1; transform:translateY(0); }

/* ---------- buttons ---------- */
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:.55em;
  padding:.95em 1.7em;
  border-radius:999px;
  font-family:var(--font-body);
  font-weight:600;
  font-size:.95rem;
  border:1.5px solid transparent;
  cursor:pointer;
  white-space:nowrap;
  transition:transform .22s var(--ease), box-shadow .22s var(--ease), background .22s var(--ease), border-color .22s var(--ease), color .22s var(--ease);
}
.btn svg{ width:16px; height:16px; flex-shrink:0; }
.btn-primary{
  background:var(--gradient-accent);
  color:#0A0E1A;
  box-shadow:0 16px 34px -14px rgba(91,140,255,.55);
}
.btn-primary:hover{ transform:translateY(-2px); box-shadow:0 20px 40px -14px rgba(91,140,255,.65); }
.btn-outline{
  border-color:var(--line-2);
  color:var(--ink);
  background:rgba(255,255,255,.02);
}
.btn-outline:hover{ border-color:var(--accent); color:var(--accent); transform:translateY(-2px); }
.btn-sm{ padding:.7em 1.3em; font-size:.85rem; }
.btn-block{ width:100%; }

/* =====================================================
   HEADER
   ===================================================== */
.site-header{
  position:fixed; inset:0 0 auto 0; z-index:200;
  padding-block:1.15rem;
  background:transparent;
  border-bottom:1px solid transparent;
  transition:background-color .3s var(--ease), border-color .3s var(--ease), padding .3s var(--ease), backdrop-filter .3s var(--ease);
}
.site-header.is-scrolled{
  background:rgba(10,13,18,.82);
  backdrop-filter:blur(12px);
  border-bottom-color:var(--line);
  padding-block:.8rem;
}
.header-inner{ display:flex; align-items:center; justify-content:space-between; gap:1.5rem; }

.brand{ display:flex; align-items:center; gap:.6rem; }
.brand-mark{
  display:flex; align-items:center; justify-content:center;
  width:34px; height:34px; flex-shrink:0;
  border-radius:9px;
  background:var(--gradient-accent);
  color:#0A0E1A;
  font-family:var(--font-mono);
  font-weight:700;
  font-size:.85rem;
}
.brand-name{ font-family:var(--font-display); font-weight:600; font-size:1.08rem; color:var(--ink); line-height:1.1; }
.brand-name small{
  display:block; margin-top:.1rem;
  font-family:var(--font-mono); font-weight:400; font-size:.66rem; letter-spacing:.1em; text-transform:uppercase;
  color:var(--muted);
}

.main-nav ul{ display:flex; gap:2.1rem; }
.main-nav a{
  font-size:.92rem; color:var(--ink-soft);
  position:relative; padding:.25rem 0;
}
.main-nav a::after{
  content:""; position:absolute; left:0; right:0; bottom:-2px; height:1.5px;
  background:var(--accent); transform:scaleX(0); transform-origin:left;
  transition:transform .25s var(--ease);
}
.main-nav a:hover{ color:var(--ink); }
.main-nav a:hover::after{ transform:scaleX(1); }

.header-actions{ display:flex; align-items:center; gap:14px; }
.header-actions .btn-outline{ display:none; }

.nav-toggle{
  display:flex; align-items:center; justify-content:center;
  width:40px; height:40px;
  border:1px solid var(--line-2); border-radius:var(--radius-sm);
  background:transparent; color:var(--ink);
}
.nav-toggle svg{ width:18px; height:18px; }

.mobile-menu{
  position:fixed; inset:0; z-index:300;
  background:var(--bg-soft);
  display:flex; flex-direction:column;
  padding:20px 24px 40px;
  transform:translateY(-100%);
  transition:transform .4s var(--ease);
}
.mobile-menu.is-open{ transform:translateY(0); }
.mobile-menu-head{ display:flex; align-items:center; justify-content:space-between; height:56px; }
.mobile-links{ display:flex; flex-direction:column; gap:4px; margin:20px 0 28px; }
.mobile-links a{
  font-family:var(--font-display); font-size:1.7rem; font-weight:600;
  padding:12px 2px; border-bottom:1px solid var(--line);
}
.mobile-menu .btn-primary{ margin-top:auto; }

/* =====================================================
   HERO
   ===================================================== */
.hero{
  position:relative;
  overflow:hidden;
  padding:calc(96px + 4rem) 0 5.5rem;
  background:
    radial-gradient(52% 60% at 88% 8%, rgba(91,140,255,.16), transparent 62%),
    radial-gradient(40% 45% at 4% 96%, rgba(140,107,255,.12), transparent 60%),
    linear-gradient(180deg, var(--bg) 0%, var(--bg-soft) 100%);
}
.hero-grid{
  position:absolute; inset:0; z-index:0; opacity:.5;
  background-image:linear-gradient(var(--line) 1px, transparent 1px), linear-gradient(90deg, var(--line) 1px, transparent 1px);
  background-size:64px 64px;
  mask-image:radial-gradient(ellipse 75% 60% at 50% 15%, black 30%, transparent 85%);
}
.hero-inner{
  position:relative; z-index:1;
  display:grid;
  grid-template-columns:1fr;
  gap:3rem;
  align-items:center;
}
.hero-status{
  display:inline-flex; align-items:center; gap:.6em;
  font-family:var(--font-mono); font-size:.78rem; letter-spacing:.05em;
  color:var(--ink-soft);
  background:rgba(255,255,255,.03);
  border:1px solid var(--line-2);
  padding:.5em 1em;
  border-radius:999px;
  margin-bottom:1.6rem;
}
.status-dot{ width:8px; height:8px; border-radius:50%; background:var(--green); box-shadow:0 0 0 4px rgba(53,211,153,.18); flex-shrink:0; }

.hero-name{
  display:block;
  font-family:var(--font-mono);
  font-size:1.05rem;
  color:var(--accent);
  margin-bottom:.7rem;
  letter-spacing:.02em;
}
.hero h1{
  font-size:clamp(2.4rem, 3.6vw + 1.2rem, 4.1rem);
  line-height:1.06;
  color:var(--ink);
  max-width:18ch;
}
.hero h1 em{
  font-style:normal;
  background:var(--gradient-accent);
  -webkit-background-clip:text; background-clip:text;
  color:transparent;
}
.hero-sub{
  margin-top:1.5rem;
  max-width:52ch;
  font-size:clamp(1rem,.4vw + .95rem,1.14rem);
  color:var(--ink-soft);
}
.hero-actions{ margin-top:2.3rem; display:flex; flex-wrap:wrap; gap:1rem; }

/* code / config card */
.hero-card{
  position:relative; z-index:2;
  margin-top:3.2rem;
  max-width:460px;
  background:var(--surface);
  border:1px solid var(--line-2);
  border-radius:var(--radius-md);
  box-shadow:var(--shadow-soft);
  overflow:hidden;
}
.hero-card-head{
  display:flex; align-items:center; gap:.4rem;
  padding:.85rem 1.1rem;
  border-bottom:1px solid var(--line);
  background:var(--surface-2);
}
.hc-dot{ width:9px; height:9px; border-radius:50%; }
.hc-dot.red{ background:#FF6058; }
.hc-dot.amber{ background:#FFBD2E; }
.hc-dot.green{ background:#28C840; }
.hero-card-title{
  margin-left:.5rem;
  font-family:var(--font-mono); font-size:.72rem; letter-spacing:.04em;
  color:var(--muted);
}
.hero-card-body{ padding:1.1rem 1.3rem 1.3rem; display:flex; flex-direction:column; gap:.55rem; }
.code-line{
  font-family:var(--font-mono); font-size:.84rem;
  display:flex; flex-wrap:wrap; gap:.35em;
  white-space:pre-wrap;
}
.code-key{ color:#82AAFF; }
.code-op{ color:var(--muted); }
.code-val{ color:var(--amber); }
.code-val.is-status{ color:var(--green); }
.code-comment{ color:var(--muted); font-style:italic; }

/* ---------- ticker ---------- */
.ticker{
  position:relative; z-index:1;
  border-block:1px solid var(--line);
  background:var(--bg-soft);
  overflow:hidden;
  padding-block:.85rem;
}
.ticker-track{ display:flex; width:max-content; animation:ticker-scroll 30s linear infinite; }
.ticker span{
  font-family:var(--font-mono); font-size:.76rem; letter-spacing:.1em; text-transform:uppercase;
  color:var(--ink-soft); padding-inline:1.3rem; white-space:nowrap;
}
.ticker span b{ color:var(--accent); font-weight:600; }
@keyframes ticker-scroll{ from{ transform:translateX(0); } to{ transform:translateX(-50%); } }

/* =====================================================
   ABOUT
   ===================================================== */
.about{ padding:6rem 0; background:var(--bg); }
.about-inner{ display:grid; grid-template-columns:1fr; gap:3rem; align-items:start; }
.about-text p{ color:var(--ink-soft); margin-top:1.1rem; }
.about-text p:first-of-type{ margin-top:0; }
.about-text strong{ color:var(--ink); font-weight:600; }

.about-panel{
  background:var(--surface);
  border:1px solid var(--line);
  border-radius:var(--radius-lg);
  padding:1.9rem;
}
.about-panel-label{
  font-family:var(--font-mono); font-size:.7rem; letter-spacing:.1em; text-transform:uppercase;
  color:var(--muted); margin-bottom:1.3rem; display:block;
}
.about-stats{ display:grid; grid-template-columns:1fr 1fr; gap:1.4rem; }
.about-stat-num{ font-family:var(--font-display); font-size:1.7rem; font-weight:700; color:var(--ink); }
.about-stat-label{ margin-top:.3rem; font-size:.82rem; color:var(--ink-soft); }

/* =====================================================
   SERVICES / SKILLS
   ===================================================== */
.services{ padding:6rem 0; background:var(--bg-soft); border-block:1px solid var(--line); }
.service-grid{
  display:grid; grid-template-columns:1fr; gap:1.4rem;
  margin-bottom:3.2rem;
}
.service-card{
  background:var(--surface);
  border:1px solid var(--line);
  border-radius:var(--radius-md);
  padding:1.9rem;
  transition:border-color .25s var(--ease), transform .25s var(--ease);
}
.service-card:hover{ border-color:var(--line-2); transform:translateY(-4px); }
.service-icon{
  display:flex; align-items:center; justify-content:center;
  width:46px; height:46px;
  border-radius:12px;
  background:var(--accent-soft);
  color:var(--accent);
  margin-bottom:1.2rem;
}
.service-icon svg{ width:22px; height:22px; }
.service-card h3{ font-size:1.12rem; margin-bottom:.6rem; }
.service-card p{ color:var(--ink-soft); font-size:.95rem; }

.skills-block{
  border-top:1px solid var(--line);
  padding-top:2.6rem;
}
.skills-block-label{
  font-family:var(--font-mono); font-size:.76rem; letter-spacing:.08em; text-transform:uppercase;
  color:var(--muted); margin-bottom:1.1rem; display:block;
}
.skill-tags{ display:flex; flex-wrap:wrap; gap:.7rem; }
.skill-tag{
  font-family:var(--font-mono); font-size:.82rem;
  color:var(--ink-soft);
  background:var(--surface);
  border:1px solid var(--line-2);
  border-radius:999px;
  padding:.55em 1.1em;
  transition:border-color .2s ease, color .2s ease;
}
.skill-tag:hover{ border-color:var(--accent); color:var(--ink); }

/* =====================================================
   PORTFOLIO
   ===================================================== */
.portfolio{ padding:6rem 0; background:var(--bg); }
.project-grid{ display:grid; grid-template-columns:1fr; gap:1.8rem; }
.project-card{
  display:flex; flex-direction:column;
  background:var(--surface);
  border:1px solid var(--line);
  border-radius:var(--radius-lg);
  overflow:hidden;
  transition:transform .3s var(--ease), border-color .3s var(--ease), box-shadow .3s var(--ease);
}
.project-card:hover{ transform:translateY(-5px); border-color:var(--line-2); box-shadow:var(--shadow-card); }
.project-thumb{
  position:relative;
  aspect-ratio:16/10;
  overflow:hidden;
  background:var(--surface-2);
}
.project-thumb img{ width:100%; height:100%; object-fit:cover; object-position:top; transition:transform .5s var(--ease); }
.project-card:hover .project-thumb img{ transform:scale(1.045); }
.project-tag{
  position:absolute; top:14px; left:14px; z-index:2;
  font-family:var(--font-mono); font-size:.68rem; letter-spacing:.06em; text-transform:uppercase;
  color:var(--ink);
  background:rgba(10,13,18,.72);
  backdrop-filter:blur(6px);
  border:1px solid var(--line-2);
  padding:.4em .8em;
  border-radius:999px;
}
.project-body{ padding:1.6rem 1.7rem 1.8rem; display:flex; flex-direction:column; flex:1; }
.project-body h3{ font-size:1.24rem; margin-bottom:.7rem; }
.project-body p{ color:var(--ink-soft); font-size:.95rem; margin-bottom:1.2rem; }
.project-stack{ display:flex; flex-wrap:wrap; gap:.5rem; margin-bottom:1.4rem; }
.project-stack span{
  font-family:var(--font-mono); font-size:.72rem; color:var(--muted);
  border:1px solid var(--line); border-radius:6px; padding:.3em .6em;
}
.project-body .btn{ margin-top:auto; align-self:flex-start; }

.portfolio-note{
  margin-top:2.4rem;
  display:flex; align-items:center; gap:.7rem;
  color:var(--muted); font-size:.88rem;
}
.portfolio-note svg{ width:16px; height:16px; color:var(--accent); flex-shrink:0; }

/* =====================================================
   CONTACT
   ===================================================== */
.contact{ padding:6rem 0; background:var(--bg-soft); border-block:1px solid var(--line); }
.contact-inner.center{ max-width:640px; margin-inline:auto; text-align:center; }
.contact-inner h2{ font-size:clamp(1.9rem,2.6vw + 1rem,2.7rem); margin-bottom:1rem; }
.contact-lead{ color:var(--ink-soft); margin-bottom:2.4rem; }

.contact-links{
  display:flex; flex-wrap:wrap; justify-content:center; gap:1rem;
  margin-bottom:2rem;
}
.contact-link{
  display:flex; align-items:center; gap:.9rem;
  padding:1rem 1.2rem;
  background:var(--surface);
  border:1px solid var(--line);
  border-radius:var(--radius-md);
  font-size:.95rem;
  text-align:left;
  transition:border-color .22s ease, transform .22s ease;
}
.contact-link:hover{ border-color:var(--accent); transform:translateY(-2px); }
.contact-link-icon{
  display:flex; align-items:center; justify-content:center;
  width:38px; height:38px; border-radius:10px; flex-shrink:0;
  background:var(--accent-soft); color:var(--accent);
}
.contact-link-icon svg{ width:18px; height:18px; }
.contact-link-text small{ display:block; color:var(--muted); font-size:.76rem; margin-bottom:.15rem; }
.contact-actions{ display:flex; flex-wrap:wrap; justify-content:center; gap:1rem; }

/* =====================================================
   FOOTER
   ===================================================== */
.site-footer{ background:var(--bg); padding:3.2rem 0 2rem; }
.footer-inner{
  display:flex; flex-direction:column; gap:1.8rem;
  padding-bottom:2.2rem; border-bottom:1px solid var(--line);
}
.footer-brand{ display:flex; align-items:center; gap:.7rem; }
.footer-nav{ display:flex; flex-wrap:wrap; gap:1.6rem; }
.footer-nav a{ font-size:.9rem; color:var(--ink-soft); }
.footer-nav a:hover{ color:var(--ink); }
.footer-bottom{
  display:flex; flex-direction:column; gap:.6rem;
  padding-top:1.4rem; font-size:.8rem; color:var(--muted);
}

/* =====================================================
   RESPONSIVE
   ===================================================== */
@media (min-width:620px){
  .about-stats{ grid-template-columns:repeat(4,1fr); }
  .service-grid{ grid-template-columns:repeat(2,1fr); }
}

@media (min-width:760px){
  .project-grid{ grid-template-columns:repeat(2,1fr); }
}

@media (min-width:880px){
  .main-nav{ display:block; }
  .header-actions .btn-outline{ display:inline-flex; }
  .nav-toggle{ display:none; }
  .about-inner{ grid-template-columns:1.1fr .9fr; gap:4rem; }
  .footer-inner{ flex-direction:row; align-items:center; justify-content:space-between; }
  .footer-bottom{ flex-direction:row; justify-content:space-between; }
}

@media (max-width:879px){
  .main-nav{ display:none; }
}

@media (min-width:1020px){
  .service-grid{ grid-template-columns:repeat(3,1fr); }
  .project-grid{ grid-template-columns:repeat(3,1fr); }
}

@media (max-width:619px){
  .hero{ padding-top:calc(88px + 3rem); }
  .about, .services, .portfolio, .contact{ padding:4.2rem 0; }
}