/* ===========================================================
   Tilkin Computer Solutions — style.css
   Tema: "Diagnóstico de terminal" — técnico, directo, sin vueltas
   =========================================================== */

@import url('https://fonts.googleapis.com/css2?family=JetBrains+Mono:wght@400;500;700;800&family=Inter:wght@400;500;600;700&display=swap');

:root{
  --bg:            #0c1210;
  --bg-panel:      #121a17;
  --bg-panel-2:    #17211d;
  --line:          #23342c;
  --text:          #e8ede9;
  --text-dim:      #8fa398;
  --text-faint:    #5c6b63;
  --accent:        #4be89a;
  --accent-soft:   #2c5c46;
  --accent-glow:   rgba(75,232,154,.18);
  --amber:         #ffb35c;
  --whatsapp:      #2fce6a;

  --mono: 'JetBrains Mono', 'SFMono-Regular', monospace;
  --sans: 'Inter', -apple-system, sans-serif;

  --maxw: 1120px;
  --radius: 10px;
}

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

body{
  margin:0;
  background: var(--bg);
  color: var(--text);
  font-family: var(--sans);
  line-height: 1.55;
  -webkit-font-smoothing: antialiased;
}

/* subtle scanline / grid texture on the whole page */
body::before{
  content:"";
  position: fixed; inset:0;
  pointer-events:none;
  z-index: 0;
  background-image:
    linear-gradient(rgba(75,232,154,.03) 1px, transparent 1px),
    linear-gradient(90deg, rgba(75,232,154,.03) 1px, transparent 1px);
  background-size: 42px 42px;
  mask-image: radial-gradient(ellipse at 50% 0%, black 0%, transparent 70%);
}

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

.wrap{
  max-width: var(--maxw);
  margin: 0 auto;
  padding: 0 24px;
  position: relative;
  z-index: 1;
}

.eyebrow{
  font-family: var(--mono);
  text-transform: uppercase;
  letter-spacing: .12em;
  font-size: .75rem;
  color: var(--accent);
  display: inline-flex;
  align-items: center;
  gap: .5em;
}
.eyebrow::before{ content:"$"; color: var(--text-faint); }

h1,h2,h3,h4{
  font-family: var(--mono);
  font-weight: 700;
  line-height: 1.15;
  margin: 0 0 .5em 0;
  letter-spacing: -.01em;
}
h1{ font-size: clamp(2.1rem, 4.5vw, 3.4rem); font-weight: 800; }
h2{ font-size: clamp(1.5rem, 3vw, 2.1rem); }
h3{ font-size: 1.15rem; color: var(--accent); }

p{ color: var(--text-dim); margin: 0 0 1em 0; }
strong{ color: var(--text); }

/* ---------- header ---------- */
.site-header{
  position: sticky; top:0; z-index: 50;
  background: rgba(12,18,16,.86);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--line);
}
.site-header .wrap{
  display:flex; align-items:center; justify-content:space-between;
  height: 68px;
}
.brand{ display:flex; align-items:center; gap:.6em; font-family: var(--mono); font-weight:700; font-size:1.05rem; }
.brand .dot{ width:9px; height:9px; border-radius:50%; background: var(--accent); box-shadow: 0 0 8px var(--accent); animation: pulse 2.2s infinite; }
@keyframes pulse{ 0%,100%{opacity:1} 50%{opacity:.35} }

.nav{ display:flex; align-items:center; gap: 28px; }
.nav a{
  font-family: var(--mono); font-size: .82rem; letter-spacing:.03em;
  color: var(--text-dim); text-transform: uppercase; position:relative;
  padding: 6px 0;
}
.nav a:hover, .nav a.active{ color: var(--text); }
.nav a.active::after{
  content:""; position:absolute; left:0; right:0; bottom:0; height:2px; background: var(--accent);
}
.nav-cta{
  background: var(--whatsapp); color:#04150b !important; padding:9px 16px; border-radius: 7px;
  font-weight:700; text-transform:none !important; letter-spacing:0 !important;
}
.nav-cta:hover{ filter: brightness(1.08); color:#04150b !important; }

.lang-switch{ display:flex; gap:10px; align-items:center; margin-left: 6px; }
.lang-switch img{ width:20px; border-radius:2px; opacity:.55; transition:.15s; }
.lang-switch a.current img{ opacity:1; box-shadow: 0 0 0 1px var(--accent); }

.menu-toggle{ display:none; background:none; border:1px solid var(--line); color:var(--text); border-radius:6px; padding:8px 10px; font-family: var(--mono); }

/* ---------- hero / terminal signature ---------- */
.hero{
  position:relative;
  padding: 74px 0 84px;
  overflow:hidden;
  border-bottom: 1px solid var(--line);
}
.hero .wrap{
  display:grid; grid-template-columns: 1.05fr .95fr; gap: 56px; align-items:center;
}
.hero-copy p.lead{ font-size: 1.08rem; }
.hero-actions{ display:flex; gap:14px; margin-top: 28px; flex-wrap:wrap; }
.btn{
  font-family: var(--mono); font-size:.85rem; font-weight:700; letter-spacing:.02em;
  padding: 13px 22px; border-radius:8px; display:inline-flex; align-items:center; gap:.5em;
  border:1px solid transparent; cursor:pointer;
}
.btn-primary{ background: var(--whatsapp); color:#04150b; }
.btn-primary:hover{ filter:brightness(1.08); }
.btn-ghost{ background:transparent; color: var(--text); border-color: var(--line); }
.btn-ghost:hover{ border-color: var(--accent); color: var(--accent); }

/* terminal window */
.terminal{
  background: var(--bg-panel);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  box-shadow: 0 30px 60px -20px rgba(0,0,0,.6), 0 0 0 1px rgba(75,232,154,.04);
  overflow:hidden;
}
.terminal-bar{
  display:flex; align-items:center; gap:8px;
  padding: 10px 14px; background: var(--bg-panel-2); border-bottom:1px solid var(--line);
}
.terminal-bar span{ width:10px; height:10px; border-radius:50%; background:#3a4b43; }
.terminal-bar .title{
  margin-left: 8px; font-family: var(--mono); font-size:.72rem; color: var(--text-faint);
}
.terminal-body{
  padding: 22px 20px 26px;
  font-family: var(--mono); font-size: .87rem; line-height:1.85; min-height: 190px;
}
.terminal-body .line{ color: var(--text-dim); white-space: pre-wrap; }
.terminal-body .prompt{ color: var(--accent); }
.terminal-body .ok{ color: var(--accent); }
.terminal-body .cursor{ display:inline-block; width:8px; height:1.1em; background:var(--accent); vertical-align:-2px; animation: blink 1s step-end infinite; }
@keyframes blink{ 50%{ opacity:0; } }

/* ---------- section shells ---------- */
section{ padding: 80px 0; position:relative; }
section.tight{ padding: 56px 0; }
.section-head{ max-width: 640px; margin-bottom: 44px; }
.section-head p{ margin-top: 10px; }
.divider{ border:0; border-top:1px solid var(--line); margin:0; }

.band{
  border-top:1px solid var(--line); border-bottom:1px solid var(--line);
  background: linear-gradient(180deg, var(--bg-panel), var(--bg));
}

/* page hero (non-index) */
.page-hero{
  padding: 56px 0 48px; border-bottom:1px solid var(--line);
  background:
    radial-gradient(600px 260px at 85% -10%, var(--accent-glow), transparent 60%);
}
.page-hero .eyebrow{ margin-bottom: 14px; }
.page-hero p.lead{ max-width: 620px; }

/* ---------- cards / grid ---------- */
.grid{ display:grid; gap: 22px; }
.grid-3{ grid-template-columns: repeat(3, 1fr); }
.grid-2{ grid-template-columns: repeat(2, 1fr); }

.card{
  background: var(--bg-panel);
  border:1px solid var(--line);
  border-radius: var(--radius);
  padding: 26px 24px;
  transition: border-color .15s, transform .15s;
}
.card:hover{ border-color: var(--accent-soft); transform: translateY(-2px); }
.card .tag{
  font-family: var(--mono); font-size:.7rem; letter-spacing:.08em; text-transform:uppercase;
  color: var(--text-faint); margin-bottom: 10px; display:block;
}
.card img{ border-radius:7px; margin-bottom: 16px; border:1px solid var(--line); }

.check-list{ list-style:none; margin:0; padding:0; display:grid; gap:12px; }
.check-list li{
  display:flex; gap:12px; align-items:flex-start; color: var(--text-dim);
  font-size:.98rem;
}
.check-list li::before{
  content:"✓"; color: var(--accent); font-family: var(--mono); font-weight:700;
  flex-shrink:0; margin-top:.1em;
}

.stat-row{ display:flex; gap: 40px; flex-wrap:wrap; margin-top: 10px; }
.stat{ font-family: var(--mono); }
.stat .num{ font-size: 2.1rem; font-weight:800; color: var(--accent); display:block; }
.stat .label{ font-size:.78rem; color: var(--text-faint); text-transform:uppercase; letter-spacing:.06em; }

.quote-block{
  border-left: 3px solid var(--accent);
  padding: 6px 0 6px 22px;
  margin: 28px 0;
  font-size: 1.15rem;
  color: var(--text);
}

/* diagnóstico steps (used sparingly, since it's an actual real process) */
.steps{ display:grid; gap:18px; }
.step{ display:flex; gap:18px; align-items:flex-start; }
.step .idx{
  font-family: var(--mono); color: var(--bg); background: var(--accent);
  width:30px; height:30px; border-radius:6px; display:flex; align-items:center; justify-content:center;
  font-weight:800; flex-shrink:0; font-size:.85rem;
}
.step div p{ margin:0; }

/* about page portrait layout */
.about-grid{ display:grid; grid-template-columns: .8fr 1.2fr; gap: 52px; align-items:start; }
.portrait{
  border:1px solid var(--line); border-radius: var(--radius); overflow:hidden; background: var(--bg-panel);
}

/* contact */
.contact-grid{ display:grid; grid-template-columns: 1fr 1fr; gap: 48px; }
.form-field{ margin-bottom: 18px; }
.form-field label{
  display:block; font-family: var(--mono); font-size:.72rem; text-transform:uppercase;
  letter-spacing:.08em; color: var(--text-faint); margin-bottom:8px;
}
.form-field input, .form-field textarea{
  width:100%; background: var(--bg-panel); border:1px solid var(--line); color: var(--text);
  border-radius:7px; padding:12px 14px; font-family: var(--sans); font-size:.95rem;
}
.form-field textarea{ min-height:130px; resize:vertical; }
.form-field input:focus, .form-field textarea:focus{ outline:2px solid var(--accent); border-color: transparent; }

.contact-channels{ display:grid; gap:14px; }
.channel{
  display:flex; align-items:center; gap:14px;
  background: var(--bg-panel); border:1px solid var(--line); border-radius: var(--radius);
  padding: 16px 18px;
}
.channel .ico{
  width:38px; height:38px; border-radius:8px; background: var(--accent-glow);
  display:flex; align-items:center; justify-content:center; color: var(--accent); font-family:var(--mono); font-weight:800;
  flex-shrink:0;
}
.channel small{ color: var(--text-faint); display:block; font-family: var(--mono); text-transform:uppercase; font-size:.68rem; letter-spacing:.06em; }

/* footer */
footer{ border-top:1px solid var(--line); padding: 40px 0; }
footer .wrap{ display:flex; justify-content:space-between; align-items:center; flex-wrap:wrap; gap:16px; }
footer .foot-brand{ font-family: var(--mono); color: var(--text-faint); font-size:.82rem; }
footer .foot-links{ display:flex; gap:20px; }
footer .foot-links a{ color: var(--text-dim); font-size:.85rem; }
footer .foot-links a:hover{ color: var(--accent); }

/* utility */
.mt-0{ margin-top:0; }
.center{ text-align:center; margin-left:auto; margin-right:auto; }

/* ---------- responsive ---------- */
@media (max-width: 900px){
  .hero .wrap{ grid-template-columns: 1fr; }
  .grid-3, .grid-2{ grid-template-columns: 1fr; }
  .about-grid, .contact-grid{ grid-template-columns: 1fr; }
  .nav{ position:fixed; top:68px; left:0; right:0; background: var(--bg); border-bottom:1px solid var(--line);
    flex-direction:column; align-items:flex-start; padding: 18px 24px; gap:16px; display:none; }
  .nav.open{ display:flex; }
  .menu-toggle{ display:inline-block; }
  .lang-switch{ margin-left:0; }
}

@media (prefers-reduced-motion: reduce){
  * { animation: none !important; transition: none !important; }
}